Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of',...

Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of', 'asoc/topic/omap', 'asoc/topic/pxa' and 'asoc/topic/rcar' into asoc-next

Documentation/devicetree/bindings/sound/tdm-slot.txt

+TDM slot:
+
+This specifies audio DAI's TDM slot.
+
+TDM slot properties:
+dai-tdm-slot-num : Number of slots in use.
+dai-tdm-slot-width :  Width in bits for each slot.
+
+For instance:
+	dai-tdm-slot-num = <2>;
+	dai-tdm-slot-width = <8>;
+
+And for each spcified driver, there could be one .of_xlate_tdm_slot_mask()
+to specify a explicit mapping of the channels and the slots. If it's absent
+the default snd_soc_of_xlate_tdm_slot_mask() will be used to generating the
+tx and rx masks.
+
+For snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit
+for an active slot as default, and the default active bits are at the LSB of
+the masks.

Documentation/devicetree/bindings/sound/widgets.txt

+Widgets:
+
+This mainly specifies audio off-codec DAPM widgets.
+
+Each entry is a pair of strings in DT:
+
+	"template-wname", "user-supplied-wname"
+
+The "template-wname" being the template widget name and currently includes:
+"Microphone", "Line", "Headphone" and "Speaker".
+
+The "user-supplied-wname" being the user specified widget name.
+
+For instance:
+	simple-audio-widgets =
+		"Microphone", "Microphone Jack",
+		"Line", "Line In Jack",
+		"Line", "Line Out Jack",
+		"Headphone", "Headphone Jack",
+		"Speaker", "Speaker External";

include/sound/rcar_snd.h

@@ -34,17 +34,17 @@
  * B : SSI direction
  */
 #define RSND_SSI_CLK_PIN_SHARE		(1 << 31)
-#define RSND_SSI_SYNC			(1 << 29) /* SSI34_sync etc */
-
 #define RSND_SSI_PLAY			(1 << 24)
 
+#define RSND_SSI(_dma_id, _pio_irq, _flags)		\
+{ .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
 #define RSND_SSI_SET(_dai_id, _dma_id, _pio_irq, _flags)	\
 { .dai_id = _dai_id, .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
 #define RSND_SSI_UNUSED \
 { .dai_id = -1, .dma_id = -1, .pio_irq = -1, .flags = 0 }
 
 struct rsnd_ssi_platform_info {
-	int dai_id;
+	int dai_id;	/* will be removed */
 	int dma_id;
 	int pio_irq;
 	u32 flags;
@@ -55,9 +55,31 @@ struct rsnd_ssi_platform_info {
  */
 #define RSND_SCU_USE_HPBIF		(1 << 31) /* it needs RSND_SSI_DEPENDENT */
 
-struct rsnd_scu_platform_info {
+#define RSND_SRC(rate, _dma_id)						\
+{ .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
+#define RSND_SRC_SET(rate, _dma_id)		\
+	{ .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
+#define RSND_SRC_UNUSED				\
+	{ .flags = 0, .convert_rate = 0, .dma_id = 0, }
+
+#define rsnd_scu_platform_info	rsnd_src_platform_info
+#define src_info		scu_info
+#define src_info_nr		scu_info_nr
+
+struct rsnd_src_platform_info {
 	u32 flags;
 	u32 convert_rate; /* sampling rate convert */
+	int dma_id; /* for Gen2 SCU */
+};
+
+struct rsnd_dai_path_info {
+	struct rsnd_ssi_platform_info *ssi;
+	struct rsnd_src_platform_info *src;
+};
+
+struct rsnd_dai_platform_info {
+	struct rsnd_dai_path_info playback;
+	struct rsnd_dai_path_info capture;
 };
 
 /*
@@ -75,8 +97,10 @@ struct rcar_snd_info {
 	u32 flags;
 	struct rsnd_ssi_platform_info *ssi_info;
 	int ssi_info_nr;
-	struct rsnd_scu_platform_info *scu_info;
-	int scu_info_nr;
+	struct rsnd_src_platform_info *src_info;
+	int src_info_nr;
+	struct rsnd_dai_platform_info *dai_info;
+	int dai_info_nr;
 	int (*start)(int id);
 	int (*stop)(int id);
 };

include/sound/soc-dai.h

@@ -142,6 +142,8 @@ struct snd_soc_dai_ops {
 	 * Called by soc_card drivers, normally in their hw_params.
 	 */
 	int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
+	int (*of_xlate_tdm_slot_mask)(unsigned int slots,
+		unsigned int *tx_mask, unsigned int *rx_mask);
 	int (*set_tdm_slot)(struct snd_soc_dai *dai,
 		unsigned int tx_mask, unsigned int rx_mask,
 		int slots, int slot_width);

include/sound/soc.h

@@ -1227,6 +1227,11 @@ void snd_soc_util_exit(void);
 
 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
 			       const char *propname);
+int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
+					  const char *propname);
+int snd_soc_of_parse_tdm_slot(struct device_node *np,
+			      unsigned int *slots,
+			      unsigned int *slot_width);
 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
 				   const char *propname);
 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,

include/trace/events/hswadsp.h

+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hswadsp
+
+#if !defined(_TRACE_HSWADSP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HSWADSP_H
+
+#include <linux/types.h>
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+struct sst_hsw;
+struct sst_hsw_stream;
+struct sst_hsw_ipc_stream_free_req;
+struct sst_hsw_ipc_volume_req;
+struct sst_hsw_ipc_stream_alloc_req;
+struct sst_hsw_audio_data_format_ipc;
+struct sst_hsw_ipc_stream_info_reply;
+struct sst_hsw_ipc_device_config_req;
+
+DECLARE_EVENT_CLASS(sst_irq,
+
+	TP_PROTO(uint32_t status, uint32_t mask),
+
+	TP_ARGS(status, mask),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	status		)
+		__field(	unsigned int,	mask		)
+	),
+
+	TP_fast_assign(
+		__entry->status = status;
+		__entry->mask = mask;
+	),
+
+	TP_printk("status 0x%8.8x mask 0x%8.8x",
+		(unsigned int)__entry->status, (unsigned int)__entry->mask)
+);
+
+DEFINE_EVENT(sst_irq, sst_irq_busy,
+
+	TP_PROTO(unsigned int status, unsigned int mask),
+
+	TP_ARGS(status, mask)
+
+);
+
+DEFINE_EVENT(sst_irq, sst_irq_done,
+
+	TP_PROTO(unsigned int status, unsigned int mask),
+
+	TP_ARGS(status, mask)
+
+);
+
+DECLARE_EVENT_CLASS(ipc,
+
+	TP_PROTO(const char *name, int val),
+
+	TP_ARGS(name, val),
+
+	TP_STRUCT__entry(
+		__string(	name,	name		)
+		__field(	unsigned int,	val	)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, name);
+		__entry->val = val;
+	),
+
+	TP_printk("%s 0x%8.8x", __get_str(name), (unsigned int)__entry->val)
+
+);
+
+DEFINE_EVENT(ipc, ipc_request,
+
+	TP_PROTO(const char *name, int val),
+
+	TP_ARGS(name, val)
+
+);
+
+DEFINE_EVENT(ipc, ipc_reply,
+
+	TP_PROTO(const char *name, int val),
+
+	TP_ARGS(name, val)
+
+);
+
+DEFINE_EVENT(ipc, ipc_pending_reply,
+
+	TP_PROTO(const char *name, int val),
+
+	TP_ARGS(name, val)
+
+);
+
+DEFINE_EVENT(ipc, ipc_notification,
+
+	TP_PROTO(const char *name, int val),
+
+	TP_ARGS(name, val)
+
+);
+
+DEFINE_EVENT(ipc, ipc_error,
+
+	TP_PROTO(const char *name, int val),
+
+	TP_ARGS(name, val)
+
+);
+
+DECLARE_EVENT_CLASS(stream_position,
+
+	TP_PROTO(unsigned int id, unsigned int pos),
+
+	TP_ARGS(id, pos),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	id		)
+		__field(	unsigned int,	pos		)
+	),
+
+	TP_fast_assign(
+		__entry->id = id;
+		__entry->pos = pos;
+	),
+
+	TP_printk("id %d position 0x%x",
+		(unsigned int)__entry->id, (unsigned int)__entry->pos)
+);
+
+DEFINE_EVENT(stream_position, stream_read_position,
+
+	TP_PROTO(unsigned int id, unsigned int pos),
+
+	TP_ARGS(id, pos)
+
+);
+
+DEFINE_EVENT(stream_position, stream_write_position,
+
+	TP_PROTO(unsigned int id, unsigned int pos),
+
+	TP_ARGS(id, pos)
+
+);
+
+TRACE_EVENT(hsw_stream_buffer,
+
+	TP_PROTO(struct sst_hsw_stream *stream),
+
+	TP_ARGS(stream),
+
+	TP_STRUCT__entry(
+		__field(	int,	id	)
+		__field(	int,	pt_addr	)
+		__field(	int,	num_pages	)
+		__field(	int,	ring_size	)
+		__field(	int,	ring_offset	)
+		__field(	int,	first_pfn	)
+	),
+
+	TP_fast_assign(
+		__entry->id = stream->host_id;
+		__entry->pt_addr = stream->request.ringinfo.ring_pt_address;
+		__entry->num_pages = stream->request.ringinfo.num_pages;
+		__entry->ring_size = stream->request.ringinfo.ring_size;
+		__entry->ring_offset = stream->request.ringinfo.ring_offset;
+		__entry->first_pfn = stream->request.ringinfo.ring_first_pfn;
+	),
+
+	TP_printk("stream %d ring addr 0x%x pages %d size 0x%x offset 0x%x PFN 0x%x",
+		(int) __entry->id,  (int)__entry->pt_addr,
+		(int)__entry->num_pages, (int)__entry->ring_size,
+		(int)__entry->ring_offset, (int)__entry->first_pfn)
+);
+
+TRACE_EVENT(hsw_stream_alloc_reply,
+
+	TP_PROTO(struct sst_hsw_stream *stream),
+
+	TP_ARGS(stream),
+
+	TP_STRUCT__entry(
+		__field(	int,	id	)
+		__field(	int,	stream_id	)
+		__field(	int,	mixer_id	)
+		__field(	int,	peak0	)
+		__field(	int,	peak1	)
+		__field(	int,	vol0	)
+		__field(	int,	vol1	)
+	),
+
+	TP_fast_assign(
+		__entry->id = stream->host_id;
+		__entry->stream_id = stream->reply.stream_hw_id;
+		__entry->mixer_id = stream->reply.mixer_hw_id;
+		__entry->peak0 = stream->reply.peak_meter_register_address[0];
+		__entry->peak1 = stream->reply.peak_meter_register_address[1];
+		__entry->vol0 = stream->reply.volume_register_address[0];
+		__entry->vol1 = stream->reply.volume_register_address[1];
+	),
+
+	TP_printk("stream %d hw id %d mixer %d peak 0x%x:0x%x vol 0x%x,0x%x",
+		(int) __entry->id, (int) __entry->stream_id, (int)__entry->mixer_id,
+		(int)__entry->peak0, (int)__entry->peak1,
+		(int)__entry->vol0, (int)__entry->vol1)
+);
+
+TRACE_EVENT(hsw_mixer_info_reply,
+
+	TP_PROTO(struct sst_hsw_ipc_stream_info_reply *reply),
+
+	TP_ARGS(reply),
+
+	TP_STRUCT__entry(
+		__field(	int,	mixer_id	)
+		__field(	int,	peak0	)
+		__field(	int,	peak1	)
+		__field(	int,	vol0	)
+		__field(	int,	vol1	)
+	),
+
+	TP_fast_assign(
+		__entry->mixer_id = reply->mixer_hw_id;
+		__entry->peak0 = reply->peak_meter_register_address[0];
+		__entry->peak1 = reply->peak_meter_register_address[1];
+		__entry->vol0 = reply->volume_register_address[0];
+		__entry->vol1 = reply->volume_register_address[1];
+	),
+
+	TP_printk("mixer id %d peak 0x%x:0x%x vol 0x%x,0x%x",
+		(int)__entry->mixer_id,
+		(int)__entry->peak0, (int)__entry->peak1,
+		(int)__entry->vol0, (int)__entry->vol1)
+);
+
+TRACE_EVENT(hsw_stream_data_format,
+
+	TP_PROTO(struct sst_hsw_stream *stream,
+		struct sst_hsw_audio_data_format_ipc *req),
+
+	TP_ARGS(stream, req),
+
+	TP_STRUCT__entry(
+		__field(	uint32_t,	id	)
+		__field(	uint32_t,	frequency	)
+		__field(	uint32_t,	bitdepth	)
+		__field(	uint32_t,	map	)
+		__field(	uint32_t,	config	)
+		__field(	uint32_t,	style	)
+		__field(	uint8_t,	ch_num	)
+		__field(	uint8_t,	valid_bit	)
+	),
+
+	TP_fast_assign(
+		__entry->id = stream->host_id;
+		__entry->frequency = req->frequency;
+		__entry->bitdepth = req->bitdepth;
+		__entry->map = req->map;
+		__entry->config = req->config;
+		__entry->style = req->style;
+		__entry->ch_num = req->ch_num;
+		__entry->valid_bit = req->valid_bit;
+	),
+
+	TP_printk("stream %d freq %d depth %d map 0x%x config 0x%x style 0x%x ch %d bits %d",
+		(int) __entry->id, (uint32_t)__entry->frequency,
+		(uint32_t)__entry->bitdepth, (uint32_t)__entry->map,
+		(uint32_t)__entry->config, (uint32_t)__entry->style,
+		(uint8_t)__entry->ch_num, (uint8_t)__entry->valid_bit)
+);
+
+TRACE_EVENT(hsw_stream_alloc_request,
+
+	TP_PROTO(struct sst_hsw_stream *stream,
+		struct sst_hsw_ipc_stream_alloc_req *req),
+
+	TP_ARGS(stream, req),
+
+	TP_STRUCT__entry(
+		__field(	uint32_t,	id	)
+		__field(	uint8_t,	path_id	)
+		__field(	uint8_t,	stream_type	)
+		__field(	uint8_t,	format_id	)
+	),
+
+	TP_fast_assign(
+		__entry->id = stream->host_id;
+		__entry->path_id = req->path_id;
+		__entry->stream_type = req->stream_type;
+		__entry->format_id = req->format_id;
+	),
+
+	TP_printk("stream %d path %d type %d format %d",
+		(int) __entry->id, (uint8_t)__entry->path_id,
+		(uint8_t)__entry->stream_type, (uint8_t)__entry->format_id)
+);
+
+TRACE_EVENT(hsw_stream_free_req,
+
+	TP_PROTO(struct sst_hsw_stream *stream,
+		struct sst_hsw_ipc_stream_free_req *req),
+
+	TP_ARGS(stream, req),
+
+	TP_STRUCT__entry(
+		__field(	int,	id	)
+		__field(	int,	stream_id	)
+	),
+
+	TP_fast_assign(
+		__entry->id = stream->host_id;
+		__entry->stream_id = req->stream_id;
+	),
+
+	TP_printk("stream %d hw id %d",
+		(int) __entry->id, (int) __entry->stream_id)
+);
+
+TRACE_EVENT(hsw_volume_req,
+
+	TP_PROTO(struct sst_hsw_stream *stream,
+		struct sst_hsw_ipc_volume_req *req),
+
+	TP_ARGS(stream, req),
+
+	TP_STRUCT__entry(
+		__field(	int,	id	)
+		__field(	uint32_t,	channel	)
+		__field(	uint32_t,	target_volume	)
+		__field(	uint64_t,	curve_duration	)
+		__field(	uint32_t,	curve_type	)
+	),
+
+	TP_fast_assign(
+		__entry->id = stream->host_id;
+		__entry->channel = req->channel;
+		__entry->target_volume = req->target_volume;
+		__entry->curve_duration = req->curve_duration;
+		__entry->curve_type = req->curve_type;
+	),
+
+	TP_printk("stream %d chan 0x%x vol %d duration %llu type %d",
+		(int) __entry->id, (uint32_t) __entry->channel,
+		(uint32_t)__entry->target_volume,
+		(uint64_t)__entry->curve_duration,
+		(uint32_t)__entry->curve_type)
+);
+
+TRACE_EVENT(hsw_device_config_req,
+
+	TP_PROTO(struct sst_hsw_ipc_device_config_req *req),
+
+	TP_ARGS(req),
+
+	TP_STRUCT__entry(
+		__field(	uint32_t,	ssp	)
+		__field(	uint32_t,	clock_freq	)
+		__field(	uint32_t,	mode	)
+		__field(	uint16_t,	clock_divider	)
+	),
+
+	TP_fast_assign(
+		__entry->ssp = req->ssp_interface;
+		__entry->clock_freq = req->clock_frequency;
+		__entry->mode = req->mode;
+		__entry->clock_divider = req->clock_divider;
+	),
+
+	TP_printk("SSP %d Freq %d mode %d div %d",
+		(uint32_t)__entry->ssp,
+		(uint32_t)__entry->clock_freq, (uint32_t)__entry->mode,
+		(uint32_t)__entry->clock_divider)
+);
+
+#endif /* _TRACE_HSWADSP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>

include/trace/events/intel-sst.h

+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM intel-sst
+
+#if !defined(_TRACE_INTEL_SST_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_INTEL_SST_H
+
+#include <linux/types.h>
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(sst_ipc_msg,
+
+	TP_PROTO(unsigned int val),
+
+	TP_ARGS(val),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	val		)
+	),
+
+	TP_fast_assign(
+		__entry->val = val;
+	),
+
+	TP_printk("0x%8.8x", (unsigned int)__entry->val)
+);
+
+DEFINE_EVENT(sst_ipc_msg, sst_ipc_msg_tx,
+
+	TP_PROTO(unsigned int val),
+
+	TP_ARGS(val)
+
+);
+
+DEFINE_EVENT(sst_ipc_msg, sst_ipc_msg_rx,
+
+	TP_PROTO(unsigned int val),
+
+	TP_ARGS(val)
+
+);
+
+DECLARE_EVENT_CLASS(sst_ipc_mailbox,
+
+	TP_PROTO(unsigned int offset, unsigned int val),
+
+	TP_ARGS(offset, val),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	offset		)
+		__field(	unsigned int,	val		)
+	),
+
+	TP_fast_assign(
+		__entry->offset = offset;
+		__entry->val = val;
+	),
+
+	TP_printk(" 0x%4.4x = 0x%8.8x",
+		(unsigned int)__entry->offset, (unsigned int)__entry->val)
+);
+
+DEFINE_EVENT(sst_ipc_mailbox, sst_ipc_inbox_rdata,
+
+	TP_PROTO(unsigned int offset, unsigned int val),
+
+	TP_ARGS(offset, val)
+
+);
+
+DEFINE_EVENT(sst_ipc_mailbox, sst_ipc_inbox_wdata,
+
+	TP_PROTO(unsigned int offset, unsigned int val),
+
+	TP_ARGS(offset, val)
+
+);
+
+DEFINE_EVENT(sst_ipc_mailbox, sst_ipc_outbox_rdata,
+
+	TP_PROTO(unsigned int offset, unsigned int val),
+
+	TP_ARGS(offset, val)
+
+);
+
+DEFINE_EVENT(sst_ipc_mailbox, sst_ipc_outbox_wdata,
+
+	TP_PROTO(unsigned int offset, unsigned int val),
+
+	TP_ARGS(offset, val)
+
+);
+
+DECLARE_EVENT_CLASS(sst_ipc_mailbox_info,
+
+	TP_PROTO(unsigned int size),
+
+	TP_ARGS(size),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	size		)
+	),
+
+	TP_fast_assign(
+		__entry->size = size;
+	),
+
+	TP_printk("Mailbox bytes 0x%8.8x", (unsigned int)__entry->size)
+);
+
+DEFINE_EVENT(sst_ipc_mailbox_info, sst_ipc_inbox_read,
+
+	TP_PROTO(unsigned int size),
+
+	TP_ARGS(size)
+
+);
+
+DEFINE_EVENT(sst_ipc_mailbox_info, sst_ipc_inbox_write,
+
+	TP_PROTO(unsigned int size),
+
+	TP_ARGS(size)
+
+);
+
+DEFINE_EVENT(sst_ipc_mailbox_info, sst_ipc_outbox_read,
+
+	TP_PROTO(unsigned int size),
+
+	TP_ARGS(size)
+
+);
+
+DEFINE_EVENT(sst_ipc_mailbox_info, sst_ipc_outbox_write,
+
+	TP_PROTO(unsigned int size),
+
+	TP_ARGS(size)
+
+);
+
+#endif /* _TRACE_SST_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>

sound/soc/codecs/ml26124.c

@@ -73,11 +73,11 @@ static const DECLARE_TLV_DB_SCALE(ngth, -7650, 150, 0);
 static const char * const ml26124_companding[] = {"16bit PCM", "u-law",
 						  "A-law"};
 
-static const struct soc_enum ml26124_adc_companding_enum
-	= SOC_ENUM_SINGLE(ML26124_SAI_TRANS_CTL, 6, 3, ml26124_companding);
+static SOC_ENUM_SINGLE_DECL(ml26124_adc_companding_enum,
+			    ML26124_SAI_TRANS_CTL, 6, ml26124_companding);
 
-static const struct soc_enum ml26124_dac_companding_enum
-	= SOC_ENUM_SINGLE(ML26124_SAI_RCV_CTL, 6, 3, ml26124_companding);
+static SOC_ENUM_SINGLE_DECL(ml26124_dac_companding_enum,
+			    ML26124_SAI_RCV_CTL, 6, ml26124_companding);
 
 static const struct snd_kcontrol_new ml26124_snd_controls[] = {
 	SOC_SINGLE_TLV("Capture Digital Volume", ML26124_RECORD_DIG_VOL, 0,
@@ -136,8 +136,8 @@ static const struct snd_kcontrol_new ml26124_output_mixer_controls[] = {
 static const char * const ml26124_input_select[] = {"Analog MIC SingleEnded in",
 				"Digital MIC in", "Analog MIC Differential in"};
 
-static const struct soc_enum ml26124_insel_enum =
-	SOC_ENUM_SINGLE(ML26124_MIC_IF_CTL, 0, 3, ml26124_input_select);
+static SOC_ENUM_SINGLE_DECL(ml26124_insel_enum,
+			    ML26124_MIC_IF_CTL, 0, ml26124_input_select);
 
 static const struct snd_kcontrol_new ml26124_input_mux_controls =
 	SOC_DAPM_ENUM("Input Select", ml26124_insel_enum);

sound/soc/intel/Kconfig

@@ -2,12 +2,50 @@ config SND_MFLD_MACHINE
 	tristate "SOC Machine Audio driver for Intel Medfield MID platform"
 	depends on INTEL_SCU_IPC
 	select SND_SOC_SN95031
-	select SND_SST_PLATFORM
+	select SND_SST_MFLD_PLATFORM
 	help
           This adds support for ASoC machine driver for Intel(R) MID Medfield platform
           used as alsa device in audio substem in Intel(R) MID devices
           Say Y if you have such a device
           If unsure select "N".
 
-config SND_SST_PLATFORM
+config SND_SST_MFLD_PLATFORM
 	tristate
+
+config SND_SOC_INTEL_SST
+	tristate "ASoC support for Intel(R) Smart Sound Technology"
+	select SND_SOC_INTEL_SST_ACPI if ACPI
+	depends on (X86 || COMPILE_TEST)
+	help
+          This adds support for Intel(R) Smart Sound Technology (SST).
+          Say Y if you have such a device
+          If unsure select "N".
+
+config SND_SOC_INTEL_SST_ACPI
+	tristate
+
+config SND_SOC_INTEL_HASWELL
+	tristate
+
+config SND_SOC_INTEL_BAYTRAIL
+	tristate
+
+config SND_SOC_INTEL_HASWELL_MACH
+	tristate "ASoC Audio DSP support for Intel Haswell Lynxpoint"
+	depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS
+	select SND_SOC_INTEL_HASWELL
+	select SND_SOC_RT5640
+	help
+	  This adds support for the Lynxpoint Audio DSP on Intel(R) Haswell
+	  Ultrabook platforms.
+	  Say Y if you have such a device
+	  If unsure select "N".
+
+config SND_SOC_INTEL_BYT_RT5640_MACH
+	tristate "ASoC Audio driver for Intel Baytrail with RT5640 codec"
+	depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS
+	select SND_SOC_INTEL_BAYTRAIL
+	select SND_SOC_RT5640
+	help
+	  This adds audio driver for Intel Baytrail platform based boards
+	  with the RT5640 audio codec.

sound/soc/intel/Makefile

-snd-soc-sst-platform-objs := sst_platform.o
+# Core support
+snd-soc-sst-dsp-objs := sst-dsp.o sst-firmware.o
+snd-soc-sst-acpi-objs := sst-acpi.o
+
+snd-soc-sst-mfld-platform-objs := sst-mfld-platform.o
 snd-soc-mfld-machine-objs := mfld_machine.o
 
-obj-$(CONFIG_SND_SST_PLATFORM) += snd-soc-sst-platform.o
+obj-$(CONFIG_SND_SST_MFLD_PLATFORM) += snd-soc-sst-mfld-platform.o
 obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o
+
+obj-$(CONFIG_SND_SOC_INTEL_SST) += snd-soc-sst-dsp.o
+obj-$(CONFIG_SND_SOC_INTEL_SST_ACPI) += snd-soc-sst-acpi.o
+
+# Platform Support
+snd-soc-sst-haswell-pcm-objs := \
+	sst-haswell-ipc.o sst-haswell-pcm.o sst-haswell-dsp.o
+snd-soc-sst-baytrail-pcm-objs := \
+	sst-baytrail-ipc.o sst-baytrail-pcm.o sst-baytrail-dsp.o
+
+obj-$(CONFIG_SND_SOC_INTEL_HASWELL) += snd-soc-sst-haswell-pcm.o
+obj-$(CONFIG_SND_SOC_INTEL_BAYTRAIL) += snd-soc-sst-baytrail-pcm.o
+
+# Machine support
+snd-soc-sst-haswell-objs := haswell.o
+snd-soc-sst-byt-rt5640-mach-objs := byt-rt5640.o
+
+obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
+obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o

sound/soc/intel/byt-rt5640.c

+/*
+ * Intel Baytrail SST RT5640 machine driver
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../codecs/rt5640.h"
+
+#include "sst-dsp.h"
+
+static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_MIC("Internal Mic", NULL),
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
+	{"IN2P", NULL, "Headset Mic"},
+	{"IN2N", NULL, "Headset Mic"},
+	{"DMIC1", NULL, "Internal Mic"},
+	{"Headphone", NULL, "HPOL"},
+	{"Headphone", NULL, "HPOR"},
+	{"Speaker", NULL, "SPOLP"},
+	{"Speaker", NULL, "SPOLN"},
+	{"Speaker", NULL, "SPORP"},
+	{"Speaker", NULL, "SPORN"},
+};
+
+static const struct snd_kcontrol_new byt_rt5640_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Internal Mic"),
+	SOC_DAPM_PIN_SWITCH("Speaker"),
+};
+
+static int byt_rt5640_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
+				     params_rate(params) * 256,
+				     SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "can't set codec clock %d\n", ret);
+		return ret;
+	}
+	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
+				  params_rate(params) * 64,
+				  params_rate(params) * 256);
+	if (ret < 0) {
+		dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
+static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
+{
+	int ret;
+	struct snd_soc_codec *codec = runtime->codec;
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	struct snd_soc_card *card = runtime->card;
+
+	card->dapm.idle_bias_off = true;
+
+	ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
+					ARRAY_SIZE(byt_rt5640_controls));
+	if (ret) {
+		dev_err(card->dev, "unable to add card controls\n");
+		return ret;
+	}
+
+	snd_soc_dapm_ignore_suspend(dapm, "HPOL");
+	snd_soc_dapm_ignore_suspend(dapm, "HPOR");
+
+	snd_soc_dapm_ignore_suspend(dapm, "SPOLP");
+	snd_soc_dapm_ignore_suspend(dapm, "SPOLN");
+	snd_soc_dapm_ignore_suspend(dapm, "SPORP");
+	snd_soc_dapm_ignore_suspend(dapm, "SPORN");
+
+	snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+	snd_soc_dapm_enable_pin(dapm, "Headphone");
+	snd_soc_dapm_enable_pin(dapm, "Speaker");
+	snd_soc_dapm_enable_pin(dapm, "Internal Mic");
+
+	snd_soc_dapm_sync(dapm);
+	return ret;
+}
+
+static struct snd_soc_ops byt_rt5640_ops = {
+	.hw_params = byt_rt5640_hw_params,
+};
+
+static struct snd_soc_dai_link byt_rt5640_dais[] = {
+	{
+		.name = "Baytrail Audio",
+		.stream_name = "Audio",
+		.cpu_dai_name = "Front-cpu-dai",
+		.codec_dai_name = "rt5640-aif1",
+		.codec_name = "i2c-10EC5640:00",
+		.platform_name = "baytrail-pcm-audio",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			   SND_SOC_DAIFMT_CBS_CFS,
+		.init = byt_rt5640_init,
+		.ignore_suspend = 1,
+		.ops = &byt_rt5640_ops,
+	},
+	{
+		.name = "Baytrail Voice",
+		.stream_name = "Voice",
+		.cpu_dai_name = "Mic1-cpu-dai",
+		.codec_dai_name = "rt5640-aif1",
+		.codec_name = "i2c-10EC5640:00",
+		.platform_name = "baytrail-pcm-audio",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			   SND_SOC_DAIFMT_CBS_CFS,
+		.init = NULL,
+		.ignore_suspend = 1,
+		.ops = &byt_rt5640_ops,
+	},
+};
+
+static struct snd_soc_card byt_rt5640_card = {
+	.name = "byt-rt5640",
+	.dai_link = byt_rt5640_dais,
+	.num_links = ARRAY_SIZE(byt_rt5640_dais),
+	.dapm_widgets = byt_rt5640_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
+	.dapm_routes = byt_rt5640_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
+};
+
+static int byt_rt5640_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &byt_rt5640_card;
+	struct device *dev = &pdev->dev;
+
+	card->dev = &pdev->dev;
+	dev_set_drvdata(dev, card);
+	return snd_soc_register_card(card);
+}
+
+static int byt_rt5640_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+
+	return 0;
+}
+
+static struct platform_driver byt_rt5640_audio = {
+	.probe = byt_rt5640_probe,
+	.remove = byt_rt5640_remove,
+	.driver = {
+		.name = "byt-rt5640",
+		.owner = THIS_MODULE,
+	},
+};
+module_platform_driver(byt_rt5640_audio)
+
+MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
+MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:byt-rt5640");

sound/soc/intel/haswell.c

+/*
+ * Intel Haswell Lynxpoint SST Audio
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#include "sst-dsp.h"
+#include "sst-haswell-ipc.h"
+
+#include "../codecs/rt5640.h"
+
+/* Haswell ULT platforms have a Headphone and Mic jack */
+static const struct snd_soc_dapm_widget haswell_widgets[] = {
+	SND_SOC_DAPM_HP("Headphones", NULL),
+	SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route haswell_rt5640_map[] = {
+
+	{"Headphones", NULL, "HPOR"},
+	{"Headphones", NULL, "HPOL"},
+	{"IN2P", NULL, "Mic"},
+
+	/* CODEC BE connections */
+	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},
+	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
+};
+
+static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	/* The ADSP will covert the FE rate to 48k, stereo */
+	rate->min = rate->max = 48000;
+	channels->min = channels->max = 2;
+
+	/* set SSP0 to 16 bit */
+	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
+				    SNDRV_PCM_HW_PARAM_FIRST_MASK],
+				    SNDRV_PCM_FORMAT_S16_LE);
+	return 0;
+}
+
+static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
+		SND_SOC_CLOCK_IN);
+
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
+		return ret;
+	}
+
+	/* set correct codec filter for DAI format and clock config */
+	snd_soc_update_bits(rtd->codec, 0x83, 0xffff, 0x8000);
+
+	return ret;
+}
+
+static struct snd_soc_ops haswell_rt5640_ops = {
+	.hw_params = haswell_rt5640_hw_params,
+};
+
+static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
+	struct sst_hsw *haswell = pdata->dsp;
+	int ret;
+
+	/* Set ADSP SSP port settings */
+	ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
+		SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
+		SST_HSW_DEVICE_CLOCK_MASTER, 9);
+	if (ret < 0) {
+		dev_err(rtd->dev, "failed to set device config\n");
+		return ret;
+	}
+
+	/* always connected */
+	snd_soc_dapm_enable_pin(dapm, "Headphones");
+	snd_soc_dapm_enable_pin(dapm, "Mic");
+
+	return 0;
+}
+
+static struct snd_soc_dai_link haswell_rt5640_dais[] = {
+	/* Front End DAI links */
+	{
+		.name = "System",
+		.stream_name = "System Playback",
+		.cpu_dai_name = "System Pin",
+		.platform_name = "haswell-pcm-audio",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.init = haswell_rtd_init,
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+	},
+	{
+		.name = "Offload0",
+		.stream_name = "Offload0 Playback",
+		.cpu_dai_name = "Offload0 Pin",
+		.platform_name = "haswell-pcm-audio",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+	},
+	{
+		.name = "Offload1",
+		.stream_name = "Offload1 Playback",
+		.cpu_dai_name = "Offload1 Pin",
+		.platform_name = "haswell-pcm-audio",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+	},
+	{
+		.name = "Loopback",
+		.stream_name = "Loopback",
+		.cpu_dai_name = "Loopback Pin",
+		.platform_name = "haswell-pcm-audio",
+		.dynamic = 0,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "Capture",
+		.stream_name = "Capture",
+		.cpu_dai_name = "Capture Pin",
+		.platform_name = "haswell-pcm-audio",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_capture = 1,
+	},
+
+	/* Back End DAI links */
+	{
+		/* SSP0 - Codec */
+		.name = "Codec",
+		.be_id = 0,
+		.cpu_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "snd-soc-dummy",
+		.no_pcm = 1,
+		.codec_name = "i2c-INT33CA:00",
+		.codec_dai_name = "rt5640-aif1",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		.ignore_suspend = 1,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = haswell_ssp0_fixup,
+		.ops = &haswell_rt5640_ops,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+	},
+};
+
+/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
+static struct snd_soc_card haswell_rt5640 = {
+	.name = "haswell-rt5640",
+	.owner = THIS_MODULE,
+	.dai_link = haswell_rt5640_dais,
+	.num_links = ARRAY_SIZE(haswell_rt5640_dais),
+	.dapm_widgets = haswell_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
+	.dapm_routes = haswell_rt5640_map,
+	.num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
+	.fully_routed = true,
+};
+
+static int haswell_audio_probe(struct platform_device *pdev)
+{
+	haswell_rt5640.dev = &pdev->dev;
+
+	return snd_soc_register_card(&haswell_rt5640);
+}
+
+static int haswell_audio_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_card(&haswell_rt5640);
+	return 0;
+}
+
+static struct platform_driver haswell_audio = {
+	.probe = haswell_audio_probe,
+	.remove = haswell_audio_remove,
+	.driver = {
+		.name = "haswell-audio",
+		.owner = THIS_MODULE,
+	},
+};
+
+module_platform_driver(haswell_audio)
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
+MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:haswell-audio");

sound/soc/intel/sst-acpi.c

+/*
+ * Intel SST loader on ACPI systems
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "sst-dsp.h"
+
+#define SST_LPT_DSP_DMA_ADDR_OFFSET	0x0F0000
+#define SST_WPT_DSP_DMA_ADDR_OFFSET	0x0FE000
+#define SST_LPT_DSP_DMA_SIZE		(1024 - 1)
+
+/* Descriptor for SST ASoC machine driver */
+struct sst_acpi_mach {
+	/* ACPI ID for the matching machine driver. Audio codec for instance */
+	const u8 id[ACPI_ID_LEN];
+	/* machine driver name */
+	const char *drv_name;
+	/* firmware file name */
+	const char *fw_filename;
+};
+
+/* Descriptor for setting up SST platform data */
+struct sst_acpi_desc {
+	const char *drv_name;
+	struct sst_acpi_mach *machines;
+	/* Platform resource indexes. Must set to -1 if not used */
+	int resindex_lpe_base;
+	int resindex_pcicfg_base;
+	int resindex_fw_base;
+	int irqindex_host_ipc;
+	int resindex_dma_base;
+	/* Unique number identifying the SST core on platform */
+	int sst_id;
+	/* DMA only valid when resindex_dma_base != -1*/
+	int dma_engine;
+	int dma_size;
+};
+
+struct sst_acpi_priv {
+	struct platform_device *pdev_mach;
+	struct platform_device *pdev_pcm;
+	struct sst_pdata sst_pdata;
+	struct sst_acpi_desc *desc;
+	struct sst_acpi_mach *mach;
+};
+
+static void sst_acpi_fw_cb(const struct firmware *fw, void *context)
+{
+	struct platform_device *pdev = context;
+	struct device *dev = &pdev->dev;
+	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
+	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
+	struct sst_acpi_desc *desc = sst_acpi->desc;
+	struct sst_acpi_mach *mach = sst_acpi->mach;
+
+	sst_pdata->fw = fw;
+	if (!fw) {
+		dev_err(dev, "Cannot load firmware %s\n", mach->fw_filename);
+		return;
+	}
+
+	/* register PCM and DAI driver */
+	sst_acpi->pdev_pcm =
+		platform_device_register_data(dev, desc->drv_name, -1,
+					      sst_pdata, sizeof(*sst_pdata));
+	if (IS_ERR(sst_acpi->pdev_pcm)) {
+		dev_err(dev, "Cannot register device %s. Error %d\n",
+			desc->drv_name, (int)PTR_ERR(sst_acpi->pdev_pcm));
+	}
+
+	return;
+}
+
+static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
+				       void *context, void **ret)
+{
+	*(bool *)context = true;
+	return AE_OK;
+}
+
+static struct sst_acpi_mach *sst_acpi_find_machine(
+	struct sst_acpi_mach *machines)
+{
+	struct sst_acpi_mach *mach;
+	bool found = false;
+
+	for (mach = machines; mach->id[0]; mach++)
+		if (ACPI_SUCCESS(acpi_get_devices(mach->id,
+						  sst_acpi_mach_match,
+						  &found, NULL)) && found)
+			return mach;
+
+	return NULL;
+}
+
+static int sst_acpi_probe(struct platform_device *pdev)
+{
+	const struct acpi_device_id *id;
+	struct device *dev = &pdev->dev;
+	struct sst_acpi_priv *sst_acpi;
+	struct sst_pdata *sst_pdata;
+	struct sst_acpi_mach *mach;
+	struct sst_acpi_desc *desc;
+	struct resource *mmio;
+	int ret = 0;
+
+	sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
+	if (sst_acpi == NULL)
+		return -ENOMEM;
+
+	id = acpi_match_device(dev->driver->acpi_match_table, dev);
+	if (!id)
+		return -ENODEV;
+
+	desc = (struct sst_acpi_desc *)id->driver_data;
+	mach = sst_acpi_find_machine(desc->machines);
+	if (mach == NULL) {
+		dev_err(dev, "No matching ASoC machine driver found\n");
+		return -ENODEV;
+	}
+
+	sst_pdata = &sst_acpi->sst_pdata;
+	sst_pdata->id = desc->sst_id;
+	sst_acpi->desc = desc;
+	sst_acpi->mach = mach;
+
+	if (desc->resindex_dma_base >= 0) {
+		sst_pdata->dma_engine = desc->dma_engine;
+		sst_pdata->dma_base = desc->resindex_dma_base;
+		sst_pdata->dma_size = desc->dma_size;
+	}
+
+	if (desc->irqindex_host_ipc >= 0)
+		sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
+
+	if (desc->resindex_lpe_base >= 0) {
+		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
+					     desc->resindex_lpe_base);
+		if (mmio) {
+			sst_pdata->lpe_base = mmio->start;
+			sst_pdata->lpe_size = resource_size(mmio);
+		}
+	}
+
+	if (desc->resindex_pcicfg_base >= 0) {
+		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
+					     desc->resindex_pcicfg_base);
+		if (mmio) {
+			sst_pdata->pcicfg_base = mmio->start;
+			sst_pdata->pcicfg_size = resource_size(mmio);
+		}
+	}
+
+	if (desc->resindex_fw_base >= 0) {
+		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
+					     desc->resindex_fw_base);
+		if (mmio) {
+			sst_pdata->fw_base = mmio->start;
+			sst_pdata->fw_size = resource_size(mmio);
+		}
+	}
+
+	platform_set_drvdata(pdev, sst_acpi);
+
+	/* register machine driver */
+	sst_acpi->pdev_mach =
+		platform_device_register_data(dev, mach->drv_name, -1,
+					      sst_pdata, sizeof(*sst_pdata));
+	if (IS_ERR(sst_acpi->pdev_mach))
+		return PTR_ERR(sst_acpi->pdev_mach);
+
+	/* continue SST probing after firmware is loaded */
+	ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
+				      dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
+	if (ret)
+		platform_device_unregister(sst_acpi->pdev_mach);
+
+	return ret;
+}
+
+static int sst_acpi_remove(struct platform_device *pdev)
+{
+	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
+	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
+
+	platform_device_unregister(sst_acpi->pdev_mach);
+	if (!IS_ERR_OR_NULL(sst_acpi->pdev_pcm))
+		platform_device_unregister(sst_acpi->pdev_pcm);
+	release_firmware(sst_pdata->fw);
+
+	return 0;
+}
+
+static struct sst_acpi_mach haswell_machines[] = {
+	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin" },
+	{}
+};
+
+static struct sst_acpi_desc sst_acpi_haswell_desc = {
+	.drv_name = "haswell-pcm-audio",
+	.machines = haswell_machines,
+	.resindex_lpe_base = 0,
+	.resindex_pcicfg_base = 1,
+	.resindex_fw_base = -1,
+	.irqindex_host_ipc = 0,
+	.sst_id = SST_DEV_ID_LYNX_POINT,
+	.dma_engine = SST_DMA_TYPE_DW,
+	.resindex_dma_base = SST_LPT_DSP_DMA_ADDR_OFFSET,
+	.dma_size = SST_LPT_DSP_DMA_SIZE,
+};
+
+static struct sst_acpi_mach broadwell_machines[] = {
+	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin" },
+	{}
+};
+
+static struct sst_acpi_desc sst_acpi_broadwell_desc = {
+	.drv_name = "haswell-pcm-audio",
+	.machines = broadwell_machines,
+	.resindex_lpe_base = 0,
+	.resindex_pcicfg_base = 1,
+	.resindex_fw_base = -1,
+	.irqindex_host_ipc = 0,
+	.sst_id = SST_DEV_ID_WILDCAT_POINT,
+	.dma_engine = SST_DMA_TYPE_DW,
+	.resindex_dma_base = SST_WPT_DSP_DMA_ADDR_OFFSET,
+	.dma_size = SST_LPT_DSP_DMA_SIZE,
+};
+
+static struct sst_acpi_mach baytrail_machines[] = {
+	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-i2s_master" },
+	{}
+};
+
+static struct sst_acpi_desc sst_acpi_baytrail_desc = {
+	.drv_name = "baytrail-pcm-audio",
+	.machines = baytrail_machines,
+	.resindex_lpe_base = 0,
+	.resindex_pcicfg_base = 1,
+	.resindex_fw_base = 2,
+	.irqindex_host_ipc = 5,
+	.sst_id = SST_DEV_ID_BYT,
+	.resindex_dma_base = -1,
+};
+
+static struct acpi_device_id sst_acpi_match[] = {
+	{ "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
+	{ "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
+	{ "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, sst_acpi_match);
+
+static struct platform_driver sst_acpi_driver = {
+	.probe = sst_acpi_probe,
+	.remove = sst_acpi_remove,
+	.driver = {
+		.name = "sst-acpi",
+		.owner = THIS_MODULE,
+		.acpi_match_table = ACPI_PTR(sst_acpi_match),
+	},
+};
+module_platform_driver(sst_acpi_driver);
+
+MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@linux.intel.com>");
+MODULE_DESCRIPTION("Intel SST loader on ACPI systems");
+MODULE_LICENSE("GPL v2");

sound/soc/intel/sst-baytrail-dsp.c

+/*
+ * Intel Baytrail SST DSP driver
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/firmware.h>
+
+#include "sst-dsp.h"
+#include "sst-dsp-priv.h"
+#include "sst-baytrail-ipc.h"
+
+#define SST_BYT_FW_SIGNATURE_SIZE	4
+#define SST_BYT_FW_SIGN			"$SST"
+
+#define SST_BYT_IRAM_OFFSET	0xC0000
+#define SST_BYT_DRAM_OFFSET	0x100000
+#define SST_BYT_SHIM_OFFSET	0x140000
+
+enum sst_ram_type {
+	SST_BYT_IRAM	= 1,
+	SST_BYT_DRAM	= 2,
+	SST_BYT_CACHE	= 3,
+};
+
+struct dma_block_info {
+	enum sst_ram_type	type;	/* IRAM/DRAM */
+	u32			size;	/* Bytes */
+	u32			ram_offset; /* Offset in I/DRAM */
+	u32			rsvd;	/* Reserved field */
+};
+
+struct fw_header {
+	unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE];
+	u32 file_size; /* size of fw minus this header */
+	u32 modules; /*  # of modules */
+	u32 file_format; /* version of header format */
+	u32 reserved[4];
+};
+
+struct sst_byt_fw_module_header {
+	unsigned char signature[SST_BYT_FW_SIGNATURE_SIZE];
+	u32 mod_size; /* size of module */
+	u32 blocks; /* # of blocks */
+	u32 type; /* codec type, pp lib */
+	u32 entry_point;
+};
+
+static int sst_byt_parse_module(struct sst_dsp *dsp, struct sst_fw *fw,
+				struct sst_byt_fw_module_header *module)
+{
+	struct dma_block_info *block;
+	struct sst_module *mod;
+	struct sst_module_data block_data;
+	struct sst_module_template template;
+	int count;
+
+	memset(&template, 0, sizeof(template));
+	template.id = module->type;
+	template.entry = module->entry_point;
+	template.p.type = SST_MEM_DRAM;
+	template.p.data_type = SST_DATA_P;
+	template.s.type = SST_MEM_DRAM;
+	template.s.data_type = SST_DATA_S;
+
+	mod = sst_module_new(fw, &template, NULL);
+	if (mod == NULL)
+		return -ENOMEM;
+
+	block = (void *)module + sizeof(*module);
+
+	for (count = 0; count < module->blocks; count++) {
+
+		if (block->size <= 0) {
+			dev_err(dsp->dev, "block %d size invalid\n", count);
+			return -EINVAL;
+		}
+
+		switch (block->type) {
+		case SST_BYT_IRAM:
+			block_data.offset = block->ram_offset +
+					    dsp->addr.iram_offset;
+			block_data.type = SST_MEM_IRAM;
+			break;
+		case SST_BYT_DRAM:
+			block_data.offset = block->ram_offset +
+					    dsp->addr.dram_offset;
+			block_data.type = SST_MEM_DRAM;
+			break;
+		case SST_BYT_CACHE:
+			block_data.offset = block->ram_offset +
+					    (dsp->addr.fw_ext - dsp->addr.lpe);
+			block_data.type = SST_MEM_CACHE;
+			break;
+		default:
+			dev_err(dsp->dev, "wrong ram type 0x%x in block0x%x\n",
+				block->type, count);
+			return -EINVAL;
+		}
+
+		block_data.size = block->size;
+		block_data.data_type = SST_DATA_M;
+		block_data.data = (void *)block + sizeof(*block);
+
+		sst_module_insert_fixed_block(mod, &block_data);
+
+		block = (void *)block + sizeof(*block) + block->size;
+	}
+	return 0;
+}
+
+static int sst_byt_parse_fw_image(struct sst_fw *sst_fw)
+{
+	struct fw_header *header;
+	struct sst_byt_fw_module_header *module;
+	struct sst_dsp *dsp = sst_fw->dsp;
+	int ret, count;
+
+	/* Read the header information from the data pointer */
+	header = (struct fw_header *)sst_fw->dma_buf;
+
+	/* verify FW */
+	if ((strncmp(header->signature, SST_BYT_FW_SIGN, 4) != 0) ||
+	    (sst_fw->size != header->file_size + sizeof(*header))) {
+		/* Invalid FW signature */
+		dev_err(dsp->dev, "Invalid FW sign/filesize mismatch\n");
+		return -EINVAL;
+	}
+
+	dev_dbg(dsp->dev,
+		"header sign=%4s size=0x%x modules=0x%x fmt=0x%x size=%zu\n",
+		header->signature, header->file_size, header->modules,
+		header->file_format, sizeof(*header));
+
+	module = (void *)sst_fw->dma_buf + sizeof(*header);
+	for (count = 0; count < header->modules; count++) {
+		/* module */
+		ret = sst_byt_parse_module(dsp, sst_fw, module);
+		if (ret < 0) {
+			dev_err(dsp->dev, "invalid module %d\n", count);
+			return ret;
+		}
+		module = (void *)module + sizeof(*module) + module->mod_size;
+	}
+
+	return 0;
+}
+
+static void sst_byt_dump_shim(struct sst_dsp *sst)
+{
+	int i;
+	u64 reg;
+
+	for (i = 0; i <= 0xF0; i += 8) {
+		reg = sst_dsp_shim_read64_unlocked(sst, i);
+		if (reg)
+			dev_dbg(sst->dev, "shim 0x%2.2x value 0x%16.16llx\n",
+				i, reg);
+	}
+
+	for (i = 0x00; i <= 0xff; i += 4) {
+		reg = readl(sst->addr.pci_cfg + i);
+		if (reg)
+			dev_dbg(sst->dev, "pci 0x%2.2x value 0x%8.8x\n",
+				i, (u32)reg);
+	}
+}
+
+static irqreturn_t sst_byt_irq(int irq, void *context)
+{
+	struct sst_dsp *sst = (struct sst_dsp *) context;
+	u64 isrx;
+	irqreturn_t ret = IRQ_NONE;
+
+	spin_lock(&sst->spinlock);
+
+	isrx = sst_dsp_shim_read64_unlocked(sst, SST_ISRX);
+	if (isrx & SST_ISRX_DONE) {
+		/* ADSP has processed the message request from IA */
+		sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCX,
+						    SST_BYT_IPCX_DONE, 0);
+		ret = IRQ_WAKE_THREAD;
+	}
+	if (isrx & SST_BYT_ISRX_REQUEST) {
+		/* mask message request from ADSP and do processing later */
+		sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX,
+						    SST_BYT_IMRX_REQUEST,
+						    SST_BYT_IMRX_REQUEST);
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	spin_unlock(&sst->spinlock);
+
+	return ret;
+}
+
+static void sst_byt_boot(struct sst_dsp *sst)
+{
+	int tries = 10;
+
+	/* release stall and wait to unstall */
+	sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_STALL, 0x0);
+	while (tries--) {
+		if (!(sst_dsp_shim_read64(sst, SST_CSR) &
+		      SST_BYT_CSR_PWAITMODE))
+			break;
+		msleep(100);
+	}
+	if (tries < 0) {
+		dev_err(sst->dev, "unable to start DSP\n");
+		sst_byt_dump_shim(sst);
+	}
+}
+
+static void sst_byt_reset(struct sst_dsp *sst)
+{
+	/* put DSP into reset, set reset vector and stall */
+	sst_dsp_shim_update_bits64(sst, SST_CSR,
+		SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL,
+		SST_BYT_CSR_RST | SST_BYT_CSR_VECTOR_SEL | SST_BYT_CSR_STALL);
+
+	udelay(10);
+
+	/* take DSP out of reset and keep stalled for FW loading */
+	sst_dsp_shim_update_bits64(sst, SST_CSR, SST_BYT_CSR_RST, 0);
+}
+
+struct sst_adsp_memregion {
+	u32 start;
+	u32 end;
+	int blocks;
+	enum sst_mem_type type;
+};
+
+/* BYT test stuff */
+static const struct sst_adsp_memregion byt_region[] = {
+	{0xC0000, 0x100000, 8, SST_MEM_IRAM}, /* I-SRAM - 8 * 32kB */
+	{0x100000, 0x140000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */
+};
+
+static int sst_byt_resource_map(struct sst_dsp *sst, struct sst_pdata *pdata)
+{
+	sst->addr.lpe_base = pdata->lpe_base;
+	sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size);
+	if (!sst->addr.lpe)
+		return -ENODEV;
+
+	/* ADSP PCI MMIO config space */
+	sst->addr.pci_cfg = ioremap(pdata->pcicfg_base, pdata->pcicfg_size);
+	if (!sst->addr.pci_cfg) {
+		iounmap(sst->addr.lpe);
+		return -ENODEV;
+	}
+
+	/* SST Extended FW allocation */
+	sst->addr.fw_ext = ioremap(pdata->fw_base, pdata->fw_size);
+	if (!sst->addr.fw_ext) {
+		iounmap(sst->addr.pci_cfg);
+		iounmap(sst->addr.lpe);
+		return -ENODEV;
+	}
+
+	/* SST Shim */
+	sst->addr.shim = sst->addr.lpe + sst->addr.shim_offset;
+
+	sst_dsp_mailbox_init(sst, SST_BYT_MAILBOX_OFFSET + 0x204,
+			     SST_BYT_IPC_MAX_PAYLOAD_SIZE,
+			     SST_BYT_MAILBOX_OFFSET,
+			     SST_BYT_IPC_MAX_PAYLOAD_SIZE);
+
+	sst->irq = pdata->irq;
+
+	return 0;
+}
+
+static int sst_byt_init(struct sst_dsp *sst, struct sst_pdata *pdata)
+{
+	const struct sst_adsp_memregion *region;
+	struct device *dev;
+	int ret = -ENODEV, i, j, region_count;
+	u32 offset, size;
+
+	dev = sst->dev;
+
+	switch (sst->id) {
+	case SST_DEV_ID_BYT:
+		region = byt_region;
+		region_count = ARRAY_SIZE(byt_region);
+		sst->addr.iram_offset = SST_BYT_IRAM_OFFSET;
+		sst->addr.dram_offset = SST_BYT_DRAM_OFFSET;
+		sst->addr.shim_offset = SST_BYT_SHIM_OFFSET;
+		break;
+	default:
+		dev_err(dev, "failed to get mem resources\n");
+		return ret;
+	}
+
+	ret = sst_byt_resource_map(sst, pdata);
+	if (ret < 0) {
+		dev_err(dev, "failed to map resources\n");
+		return ret;
+	}
+
+	/*
+	 * save the physical address of extended firmware block in the first
+	 * 4 bytes of the mailbox
+	 */
+	memcpy_toio(sst->addr.lpe + SST_BYT_MAILBOX_OFFSET,
+	       &pdata->fw_base, sizeof(u32));
+
+	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	/* enable Interrupt from both sides */
+	sst_dsp_shim_update_bits64(sst, SST_IMRX, 0x3, 0x0);
+	sst_dsp_shim_update_bits64(sst, SST_IMRD, 0x3, 0x0);
+
+	/* register DSP memory blocks - ideally we should get this from ACPI */
+	for (i = 0; i < region_count; i++) {
+		offset = region[i].start;
+		size = (region[i].end - region[i].start) / region[i].blocks;
+
+		/* register individual memory blocks */
+		for (j = 0; j < region[i].blocks; j++) {
+			sst_mem_block_register(sst, offset, size,
+					       region[i].type, NULL, j, sst);
+			offset += size;
+		}
+	}
+
+	return 0;
+}
+
+static void sst_byt_free(struct sst_dsp *sst)
+{
+	sst_mem_block_unregister_all(sst);
+	iounmap(sst->addr.lpe);
+	iounmap(sst->addr.pci_cfg);
+	iounmap(sst->addr.fw_ext);
+}
+
+struct sst_ops sst_byt_ops = {
+	.reset = sst_byt_reset,
+	.boot = sst_byt_boot,
+	.write = sst_shim32_write,
+	.read = sst_shim32_read,
+	.write64 = sst_shim32_write64,
+	.read64 = sst_shim32_read64,
+	.ram_read = sst_memcpy_fromio_32,
+	.ram_write = sst_memcpy_toio_32,
+	.irq_handler = sst_byt_irq,
+	.init = sst_byt_init,
+	.free = sst_byt_free,
+	.parse_fw = sst_byt_parse_fw_image,
+};

sound/soc/intel/sst-baytrail-ipc.c

+/*
+ * Intel Baytrail SST IPC Support
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+#include <linux/kthread.h>
+#include <linux/firmware.h>
+#include <linux/io.h>
+#include <asm/div64.h>
+
+#include "sst-baytrail-ipc.h"
+#include "sst-dsp.h"
+#include "sst-dsp-priv.h"
+
+/* IPC message timeout */
+#define IPC_TIMEOUT_MSECS	300
+#define IPC_BOOT_MSECS		200
+
+#define IPC_EMPTY_LIST_SIZE	8
+
+/* IPC header bits */
+#define IPC_HEADER_MSG_ID_MASK	0xff
+#define IPC_HEADER_MSG_ID(x)	((x) & IPC_HEADER_MSG_ID_MASK)
+#define IPC_HEADER_STR_ID_SHIFT	8
+#define IPC_HEADER_STR_ID_MASK	0x1f
+#define IPC_HEADER_STR_ID(x)	(((x) & 0x1f) << IPC_HEADER_STR_ID_SHIFT)
+#define IPC_HEADER_LARGE_SHIFT	13
+#define IPC_HEADER_LARGE(x)	(((x) & 0x1) << IPC_HEADER_LARGE_SHIFT)
+#define IPC_HEADER_DATA_SHIFT	16
+#define IPC_HEADER_DATA_MASK	0x3fff
+#define IPC_HEADER_DATA(x)	(((x) & 0x3fff) << IPC_HEADER_DATA_SHIFT)
+
+/* mask for differentiating between notification and reply message */
+#define IPC_NOTIFICATION	(0x1 << 7)
+
+/* I2L Stream config/control msgs */
+#define IPC_IA_ALLOC_STREAM	0x20
+#define IPC_IA_FREE_STREAM	0x21
+#define IPC_IA_PAUSE_STREAM	0x24
+#define IPC_IA_RESUME_STREAM	0x25
+#define IPC_IA_DROP_STREAM	0x26
+#define IPC_IA_START_STREAM	0x30
+
+/* notification messages */
+#define IPC_IA_FW_INIT_CMPLT	0x81
+#define IPC_SST_PERIOD_ELAPSED	0x97
+
+/* IPC messages between host and ADSP */
+struct sst_byt_address_info {
+	u32 addr;
+	u32 size;
+} __packed;
+
+struct sst_byt_str_type {
+	u8 codec_type;
+	u8 str_type;
+	u8 operation;
+	u8 protected_str;
+	u8 time_slots;
+	u8 reserved;
+	u16 result;
+} __packed;
+
+struct sst_byt_pcm_params {
+	u8 num_chan;
+	u8 pcm_wd_sz;
+	u8 use_offload_path;
+	u8 reserved;
+	u32 sfreq;
+	u8 channel_map[8];
+} __packed;
+
+struct sst_byt_frames_info {
+	u16 num_entries;
+	u16 rsrvd;
+	u32 frag_size;
+	struct sst_byt_address_info ring_buf_info[8];
+} __packed;
+
+struct sst_byt_alloc_params {
+	struct sst_byt_str_type str_type;
+	struct sst_byt_pcm_params pcm_params;
+	struct sst_byt_frames_info frame_info;
+} __packed;
+
+struct sst_byt_alloc_response {
+	struct sst_byt_str_type str_type;
+	u8 reserved[88];
+} __packed;
+
+struct sst_byt_start_stream_params {
+	u32 byte_offset;
+} __packed;
+
+struct sst_byt_tstamp {
+	u64 ring_buffer_counter;
+	u64 hardware_counter;
+	u64 frames_decoded;
+	u64 bytes_decoded;
+	u64 bytes_copied;
+	u32 sampling_frequency;
+	u32 channel_peak[8];
+} __packed;
+
+/* driver internal IPC message structure */
+struct ipc_message {
+	struct list_head list;
+	u64 header;
+
+	/* direction wrt host CPU */
+	char tx_data[SST_BYT_IPC_MAX_PAYLOAD_SIZE];
+	size_t tx_size;
+	char rx_data[SST_BYT_IPC_MAX_PAYLOAD_SIZE];
+	size_t rx_size;
+
+	wait_queue_head_t waitq;
+	bool complete;
+	bool wait;
+	int errno;
+};
+
+struct sst_byt_stream;
+struct sst_byt;
+
+/* stream infomation */
+struct sst_byt_stream {
+	struct list_head node;
+
+	/* configuration */
+	struct sst_byt_alloc_params request;
+	struct sst_byt_alloc_response reply;
+
+	/* runtime info */
+	struct sst_byt *byt;
+	int str_id;
+	bool commited;
+	bool running;
+
+	/* driver callback */
+	u32 (*notify_position)(struct sst_byt_stream *stream, void *data);
+	void *pdata;
+};
+
+/* SST Baytrail IPC data */
+struct sst_byt {
+	struct device *dev;
+	struct sst_dsp *dsp;
+
+	/* stream */
+	struct list_head stream_list;
+
+	/* boot */
+	wait_queue_head_t boot_wait;
+	bool boot_complete;
+
+	/* IPC messaging */
+	struct list_head tx_list;
+	struct list_head rx_list;
+	struct list_head empty_list;
+	wait_queue_head_t wait_txq;
+	struct task_struct *tx_thread;
+	struct kthread_worker kworker;
+	struct kthread_work kwork;
+	struct ipc_message *msg;
+};
+
+static inline u64 sst_byt_header(int msg_id, int data, bool large, int str_id)
+{
+	u64 header;
+
+	header = IPC_HEADER_MSG_ID(msg_id) |
+		 IPC_HEADER_STR_ID(str_id) |
+		 IPC_HEADER_LARGE(large) |
+		 IPC_HEADER_DATA(data) |
+		 SST_BYT_IPCX_BUSY;
+
+	return header;
+}
+
+static inline u16 sst_byt_header_msg_id(u64 header)
+{
+	return header & IPC_HEADER_MSG_ID_MASK;
+}
+
+static inline u8 sst_byt_header_str_id(u64 header)
+{
+	return (header >> IPC_HEADER_STR_ID_SHIFT) & IPC_HEADER_STR_ID_MASK;
+}
+
+static inline u16 sst_byt_header_data(u64 header)
+{
+	return (header >> IPC_HEADER_DATA_SHIFT) & IPC_HEADER_DATA_MASK;
+}
+
+static struct sst_byt_stream *sst_byt_get_stream(struct sst_byt *byt,
+						 int stream_id)
+{
+	struct sst_byt_stream *stream;
+
+	list_for_each_entry(stream, &byt->stream_list, node) {
+		if (stream->str_id == stream_id)
+			return stream;
+	}
+
+	return NULL;
+}
+
+static void sst_byt_ipc_shim_dbg(struct sst_byt *byt, const char *text)
+{
+	struct sst_dsp *sst = byt->dsp;
+	u64 isr, ipcd, imrx, ipcx;
+
+	ipcx = sst_dsp_shim_read64_unlocked(sst, SST_IPCX);
+	isr = sst_dsp_shim_read64_unlocked(sst, SST_ISRX);
+	ipcd = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
+	imrx = sst_dsp_shim_read64_unlocked(sst, SST_IMRX);
+
+	dev_err(byt->dev,
+		"ipc: --%s-- ipcx 0x%llx isr 0x%llx ipcd 0x%llx imrx 0x%llx\n",
+		text, ipcx, isr, ipcd, imrx);
+}
+
+/* locks held by caller */
+static struct ipc_message *sst_byt_msg_get_empty(struct sst_byt *byt)
+{
+	struct ipc_message *msg = NULL;
+
+	if (!list_empty(&byt->empty_list)) {
+		msg = list_first_entry(&byt->empty_list,
+				       struct ipc_message, list);
+		list_del(&msg->list);
+	}
+
+	return msg;
+}
+
+static void sst_byt_ipc_tx_msgs(struct kthread_work *work)
+{
+	struct sst_byt *byt =
+		container_of(work, struct sst_byt, kwork);
+	struct ipc_message *msg;
+	u64 ipcx;
+	unsigned long flags;
+
+	spin_lock_irqsave(&byt->dsp->spinlock, flags);
+	if (list_empty(&byt->tx_list)) {
+		spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
+		return;
+	}
+
+	/* if the DSP is busy we will TX messages after IRQ */
+	ipcx = sst_dsp_shim_read64_unlocked(byt->dsp, SST_IPCX);
+	if (ipcx & SST_BYT_IPCX_BUSY) {
+		spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
+		return;
+	}
+
+	msg = list_first_entry(&byt->tx_list, struct ipc_message, list);
+
+	list_move(&msg->list, &byt->rx_list);
+
+	/* send the message */
+	if (msg->header & IPC_HEADER_LARGE(true))
+		sst_dsp_outbox_write(byt->dsp, msg->tx_data, msg->tx_size);
+	sst_dsp_shim_write64_unlocked(byt->dsp, SST_IPCX, msg->header);
+
+	spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
+}
+
+static inline void sst_byt_tx_msg_reply_complete(struct sst_byt *byt,
+						 struct ipc_message *msg)
+{
+	msg->complete = true;
+
+	if (!msg->wait)
+		list_add_tail(&msg->list, &byt->empty_list);
+	else
+		wake_up(&msg->waitq);
+}
+
+static int sst_byt_tx_wait_done(struct sst_byt *byt, struct ipc_message *msg,
+				void *rx_data)
+{
+	unsigned long flags;
+	int ret;
+
+	/* wait for DSP completion */
+	ret = wait_event_timeout(msg->waitq, msg->complete,
+				 msecs_to_jiffies(IPC_TIMEOUT_MSECS));
+
+	spin_lock_irqsave(&byt->dsp->spinlock, flags);
+	if (ret == 0) {
+		list_del(&msg->list);
+		sst_byt_ipc_shim_dbg(byt, "message timeout");
+
+		ret = -ETIMEDOUT;
+	} else {
+
+		/* copy the data returned from DSP */
+		if (msg->rx_size)
+			memcpy(rx_data, msg->rx_data, msg->rx_size);
+		ret = msg->errno;
+	}
+
+	list_add_tail(&msg->list, &byt->empty_list);
+	spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
+	return ret;
+}
+
+static int sst_byt_ipc_tx_message(struct sst_byt *byt, u64 header,
+				  void *tx_data, size_t tx_bytes,
+				  void *rx_data, size_t rx_bytes, int wait)
+{
+	unsigned long flags;
+	struct ipc_message *msg;
+
+	spin_lock_irqsave(&byt->dsp->spinlock, flags);
+
+	msg = sst_byt_msg_get_empty(byt);
+	if (msg == NULL) {
+		spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
+		return -EBUSY;
+	}
+
+	msg->header = header;
+	msg->tx_size = tx_bytes;
+	msg->rx_size = rx_bytes;
+	msg->wait = wait;
+	msg->errno = 0;
+	msg->complete = false;
+
+	if (tx_bytes) {
+		/* msg content = lower 32-bit of the header + data */
+		*(u32 *)msg->tx_data = (u32)(header & (u32)-1);
+		memcpy(msg->tx_data + sizeof(u32), tx_data, tx_bytes);
+		msg->tx_size += sizeof(u32);
+	}
+
+	list_add_tail(&msg->list, &byt->tx_list);
+	spin_unlock_irqrestore(&byt->dsp->spinlock, flags);
+
+	queue_kthread_work(&byt->kworker, &byt->kwork);
+
+	if (wait)
+		return sst_byt_tx_wait_done(byt, msg, rx_data);
+	else
+		return 0;
+}
+
+static inline int sst_byt_ipc_tx_msg_wait(struct sst_byt *byt, u64 header,
+					  void *tx_data, size_t tx_bytes,
+					  void *rx_data, size_t rx_bytes)
+{
+	return sst_byt_ipc_tx_message(byt, header, tx_data, tx_bytes,
+				      rx_data, rx_bytes, 1);
+}
+
+static inline int sst_byt_ipc_tx_msg_nowait(struct sst_byt *byt, u64 header,
+						void *tx_data, size_t tx_bytes)
+{
+	return sst_byt_ipc_tx_message(byt, header, tx_data, tx_bytes,
+				      NULL, 0, 0);
+}
+
+static struct ipc_message *sst_byt_reply_find_msg(struct sst_byt *byt,
+						  u64 header)
+{
+	struct ipc_message *msg = NULL, *_msg;
+	u64 mask;
+
+	/* match reply to message sent based on msg and stream IDs */
+	mask = IPC_HEADER_MSG_ID_MASK |
+	       IPC_HEADER_STR_ID_MASK << IPC_HEADER_STR_ID_SHIFT;
+	header &= mask;
+
+	if (list_empty(&byt->rx_list)) {
+		dev_err(byt->dev,
+			"ipc: rx list is empty but received 0x%llx\n", header);
+		goto out;
+	}
+
+	list_for_each_entry(_msg, &byt->rx_list, list) {
+		if ((_msg->header & mask) == header) {
+			msg = _msg;
+			break;
+		}
+	}
+
+out:
+	return msg;
+}
+
+static void sst_byt_stream_update(struct sst_byt *byt, struct ipc_message *msg)
+{
+	struct sst_byt_stream *stream;
+	u64 header = msg->header;
+	u8 stream_id = sst_byt_header_str_id(header);
+	u8 stream_msg = sst_byt_header_msg_id(header);
+
+	stream = sst_byt_get_stream(byt, stream_id);
+	if (stream == NULL)
+		return;
+
+	switch (stream_msg) {
+	case IPC_IA_DROP_STREAM:
+	case IPC_IA_PAUSE_STREAM:
+	case IPC_IA_FREE_STREAM:
+		stream->running = false;
+		break;
+	case IPC_IA_START_STREAM:
+	case IPC_IA_RESUME_STREAM:
+		stream->running = true;
+		break;
+	}
+}
+
+static int sst_byt_process_reply(struct sst_byt *byt, u64 header)
+{
+	struct ipc_message *msg;
+
+	msg = sst_byt_reply_find_msg(byt, header);
+	if (msg == NULL)
+		return 1;
+
+	if (header & IPC_HEADER_LARGE(true)) {
+		msg->rx_size = sst_byt_header_data(header);
+		sst_dsp_inbox_read(byt->dsp, msg->rx_data, msg->rx_size);
+	}
+
+	/* update any stream states */
+	sst_byt_stream_update(byt, msg);
+
+	list_del(&msg->list);
+	/* wake up */
+	sst_byt_tx_msg_reply_complete(byt, msg);
+
+	return 1;
+}
+
+static void sst_byt_fw_ready(struct sst_byt *byt, u64 header)
+{
+	dev_dbg(byt->dev, "ipc: DSP is ready 0x%llX\n", header);
+
+	byt->boot_complete = true;
+	wake_up(&byt->boot_wait);
+}
+
+static int sst_byt_process_notification(struct sst_byt *byt,
+					unsigned long *flags)
+{
+	struct sst_dsp *sst = byt->dsp;
+	struct sst_byt_stream *stream;
+	u64 header;
+	u8 msg_id, stream_id;
+	int handled = 1;
+
+	header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
+	msg_id = sst_byt_header_msg_id(header);
+
+	switch (msg_id) {
+	case IPC_SST_PERIOD_ELAPSED:
+		stream_id = sst_byt_header_str_id(header);
+		stream = sst_byt_get_stream(byt, stream_id);
+		if (stream && stream->running && stream->notify_position) {
+			spin_unlock_irqrestore(&sst->spinlock, *flags);
+			stream->notify_position(stream, stream->pdata);
+			spin_lock_irqsave(&sst->spinlock, *flags);
+		}
+		break;
+	case IPC_IA_FW_INIT_CMPLT:
+		sst_byt_fw_ready(byt, header);
+		break;
+	}
+
+	return handled;
+}
+
+static irqreturn_t sst_byt_irq_thread(int irq, void *context)
+{
+	struct sst_dsp *sst = (struct sst_dsp *) context;
+	struct sst_byt *byt = sst_dsp_get_thread_context(sst);
+	u64 header;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+
+	header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
+	if (header & SST_BYT_IPCD_BUSY) {
+		if (header & IPC_NOTIFICATION) {
+			/* message from ADSP */
+			sst_byt_process_notification(byt, &flags);
+		} else {
+			/* reply from ADSP */
+			sst_byt_process_reply(byt, header);
+		}
+		/*
+		 * clear IPCD BUSY bit and set DONE bit. Tell DSP we have
+		 * processed the message and can accept new. Clear data part
+		 * of the header
+		 */
+		sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCD,
+			SST_BYT_IPCD_DONE | SST_BYT_IPCD_BUSY |
+			IPC_HEADER_DATA(IPC_HEADER_DATA_MASK),
+			SST_BYT_IPCD_DONE);
+		/* unmask message request interrupts */
+		sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX,
+			SST_BYT_IMRX_REQUEST, 0);
+	}
+
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+
+	/* continue to send any remaining messages... */
+	queue_kthread_work(&byt->kworker, &byt->kwork);
+
+	return IRQ_HANDLED;
+}
+
+/* stream API */
+struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id,
+	u32 (*notify_position)(struct sst_byt_stream *stream, void *data),
+	void *data)
+{
+	struct sst_byt_stream *stream;
+
+	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	if (stream == NULL)
+		return NULL;
+
+	list_add(&stream->node, &byt->stream_list);
+	stream->notify_position = notify_position;
+	stream->pdata = data;
+	stream->byt = byt;
+	stream->str_id = id;
+
+	return stream;
+}
+
+int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream,
+			    int bits)
+{
+	stream->request.pcm_params.pcm_wd_sz = bits;
+	return 0;
+}
+
+int sst_byt_stream_set_channels(struct sst_byt *byt,
+				struct sst_byt_stream *stream, u8 channels)
+{
+	stream->request.pcm_params.num_chan = channels;
+	return 0;
+}
+
+int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream,
+			    unsigned int rate)
+{
+	stream->request.pcm_params.sfreq = rate;
+	return 0;
+}
+
+/* stream sonfiguration */
+int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream,
+			int codec_type, int stream_type, int operation)
+{
+	stream->request.str_type.codec_type = codec_type;
+	stream->request.str_type.str_type = stream_type;
+	stream->request.str_type.operation = operation;
+	stream->request.str_type.time_slots = 0xc;
+
+	return 0;
+}
+
+int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream,
+			  uint32_t buffer_addr, uint32_t buffer_size)
+{
+	stream->request.frame_info.num_entries = 1;
+	stream->request.frame_info.ring_buf_info[0].addr = buffer_addr;
+	stream->request.frame_info.ring_buf_info[0].size = buffer_size;
+	/* calculate bytes per 4 ms fragment */
+	stream->request.frame_info.frag_size =
+		stream->request.pcm_params.sfreq *
+		stream->request.pcm_params.num_chan *
+		stream->request.pcm_params.pcm_wd_sz / 8 *
+		4 / 1000;
+	return 0;
+}
+
+int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream)
+{
+	struct sst_byt_alloc_params *str_req = &stream->request;
+	struct sst_byt_alloc_response *reply = &stream->reply;
+	u64 header;
+	int ret;
+
+	header = sst_byt_header(IPC_IA_ALLOC_STREAM,
+				sizeof(*str_req) + sizeof(u32),
+				true, stream->str_id);
+	ret = sst_byt_ipc_tx_msg_wait(byt, header, str_req, sizeof(*str_req),
+				      reply, sizeof(*reply));
+	if (ret < 0) {
+		dev_err(byt->dev, "ipc: error stream commit failed\n");
+		return ret;
+	}
+
+	stream->commited = true;
+
+	return 0;
+}
+
+int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream)
+{
+	u64 header;
+	int ret = 0;
+
+	if (!stream->commited)
+		goto out;
+
+	header = sst_byt_header(IPC_IA_FREE_STREAM, 0, false, stream->str_id);
+	ret = sst_byt_ipc_tx_msg_wait(byt, header, NULL, 0, NULL, 0);
+	if (ret < 0) {
+		dev_err(byt->dev, "ipc: free stream %d failed\n",
+			stream->str_id);
+		return -EAGAIN;
+	}
+
+	stream->commited = false;
+out:
+	list_del(&stream->node);
+	kfree(stream);
+
+	return ret;
+}
+
+static int sst_byt_stream_operations(struct sst_byt *byt, int type,
+				     int stream_id, int wait)
+{
+	struct sst_byt_start_stream_params start_stream;
+	u64 header;
+	void *tx_msg = NULL;
+	size_t size = 0;
+
+	if (type != IPC_IA_START_STREAM) {
+		header = sst_byt_header(type, 0, false, stream_id);
+	} else {
+		start_stream.byte_offset = 0;
+		header = sst_byt_header(IPC_IA_START_STREAM,
+					sizeof(start_stream) + sizeof(u32),
+					true, stream_id);
+		tx_msg = &start_stream;
+		size = sizeof(start_stream);
+	}
+
+	if (wait)
+		return sst_byt_ipc_tx_msg_wait(byt, header,
+					       tx_msg, size, NULL, 0);
+	else
+		return sst_byt_ipc_tx_msg_nowait(byt, header, tx_msg, size);
+}
+
+/* stream ALSA trigger operations */
+int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream)
+{
+	int ret;
+
+	ret = sst_byt_stream_operations(byt, IPC_IA_START_STREAM,
+					stream->str_id, 0);
+	if (ret < 0)
+		dev_err(byt->dev, "ipc: error failed to start stream %d\n",
+			stream->str_id);
+
+	return ret;
+}
+
+int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream)
+{
+	int ret;
+
+	/* don't stop streams that are not commited */
+	if (!stream->commited)
+		return 0;
+
+	ret = sst_byt_stream_operations(byt, IPC_IA_DROP_STREAM,
+					stream->str_id, 0);
+	if (ret < 0)
+		dev_err(byt->dev, "ipc: error failed to stop stream %d\n",
+			stream->str_id);
+	return ret;
+}
+
+int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream)
+{
+	int ret;
+
+	ret = sst_byt_stream_operations(byt, IPC_IA_PAUSE_STREAM,
+					stream->str_id, 0);
+	if (ret < 0)
+		dev_err(byt->dev, "ipc: error failed to pause stream %d\n",
+			stream->str_id);
+
+	return ret;
+}
+
+int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream)
+{
+	int ret;
+
+	ret = sst_byt_stream_operations(byt, IPC_IA_RESUME_STREAM,
+					stream->str_id, 0);
+	if (ret < 0)
+		dev_err(byt->dev, "ipc: error failed to resume stream %d\n",
+			stream->str_id);
+
+	return ret;
+}
+
+int sst_byt_get_dsp_position(struct sst_byt *byt,
+			     struct sst_byt_stream *stream, int buffer_size)
+{
+	struct sst_dsp *sst = byt->dsp;
+	struct sst_byt_tstamp fw_tstamp;
+	u8 str_id = stream->str_id;
+	u32 tstamp_offset;
+
+	tstamp_offset = SST_BYT_TIMESTAMP_OFFSET + str_id * sizeof(fw_tstamp);
+	memcpy_fromio(&fw_tstamp,
+		      sst->addr.lpe + tstamp_offset, sizeof(fw_tstamp));
+
+	return do_div(fw_tstamp.ring_buffer_counter, buffer_size);
+}
+
+static int msg_empty_list_init(struct sst_byt *byt)
+{
+	struct ipc_message *msg;
+	int i;
+
+	byt->msg = kzalloc(sizeof(*msg) * IPC_EMPTY_LIST_SIZE, GFP_KERNEL);
+	if (byt->msg == NULL)
+		return -ENOMEM;
+
+	for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) {
+		init_waitqueue_head(&byt->msg[i].waitq);
+		list_add(&byt->msg[i].list, &byt->empty_list);
+	}
+
+	return 0;
+}
+
+struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt)
+{
+	return byt->dsp;
+}
+
+static struct sst_dsp_device byt_dev = {
+	.thread = sst_byt_irq_thread,
+	.ops = &sst_byt_ops,
+};
+
+int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata)
+{
+	struct sst_byt *byt;
+	struct sst_fw *byt_sst_fw;
+	int err;
+
+	dev_dbg(dev, "initialising Byt DSP IPC\n");
+
+	byt = devm_kzalloc(dev, sizeof(*byt), GFP_KERNEL);
+	if (byt == NULL)
+		return -ENOMEM;
+
+	byt->dev = dev;
+	INIT_LIST_HEAD(&byt->stream_list);
+	INIT_LIST_HEAD(&byt->tx_list);
+	INIT_LIST_HEAD(&byt->rx_list);
+	INIT_LIST_HEAD(&byt->empty_list);
+	init_waitqueue_head(&byt->boot_wait);
+	init_waitqueue_head(&byt->wait_txq);
+
+	err = msg_empty_list_init(byt);
+	if (err < 0)
+		return -ENOMEM;
+
+	/* start the IPC message thread */
+	init_kthread_worker(&byt->kworker);
+	byt->tx_thread = kthread_run(kthread_worker_fn,
+				     &byt->kworker,
+				     dev_name(byt->dev));
+	if (IS_ERR(byt->tx_thread)) {
+		err = PTR_ERR(byt->tx_thread);
+		dev_err(byt->dev, "error failed to create message TX task\n");
+		goto err_free_msg;
+	}
+	init_kthread_work(&byt->kwork, sst_byt_ipc_tx_msgs);
+
+	byt_dev.thread_context = byt;
+
+	/* init SST shim */
+	byt->dsp = sst_dsp_new(dev, &byt_dev, pdata);
+	if (byt->dsp == NULL) {
+		err = -ENODEV;
+		goto err_free_msg;
+	}
+
+	/* keep the DSP in reset state for base FW loading */
+	sst_dsp_reset(byt->dsp);
+
+	byt_sst_fw = sst_fw_new(byt->dsp, pdata->fw, byt);
+	if (byt_sst_fw  == NULL) {
+		err = -ENODEV;
+		dev_err(dev, "error: failed to load firmware\n");
+		goto fw_err;
+	}
+
+	/* wait for DSP boot completion */
+	sst_dsp_boot(byt->dsp);
+	err = wait_event_timeout(byt->boot_wait, byt->boot_complete,
+				 msecs_to_jiffies(IPC_BOOT_MSECS));
+	if (err == 0) {
+		err = -EIO;
+		dev_err(byt->dev, "ipc: error DSP boot timeout\n");
+		goto boot_err;
+	}
+
+	pdata->dsp = byt;
+
+	return 0;
+
+boot_err:
+	sst_dsp_reset(byt->dsp);
+	sst_fw_free(byt_sst_fw);
+fw_err:
+	sst_dsp_free(byt->dsp);
+err_free_msg:
+	kfree(byt->msg);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(sst_byt_dsp_init);
+
+void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata)
+{
+	struct sst_byt *byt = pdata->dsp;
+
+	sst_dsp_reset(byt->dsp);
+	sst_fw_free_all(byt->dsp);
+	sst_dsp_free(byt->dsp);
+	kfree(byt->msg);
+}
+EXPORT_SYMBOL_GPL(sst_byt_dsp_free);

sound/soc/intel/sst-baytrail-ipc.h

+/*
+ * Intel Baytrail SST IPC Support
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __SST_BYT_IPC_H
+#define __SST_BYT_IPC_H
+
+#include <linux/types.h>
+
+struct sst_byt;
+struct sst_byt_stream;
+struct sst_pdata;
+extern struct sst_ops sst_byt_ops;
+
+
+#define SST_BYT_MAILBOX_OFFSET		0x144000
+#define SST_BYT_TIMESTAMP_OFFSET	(SST_BYT_MAILBOX_OFFSET + 0x800)
+
+/**
+ * Upfront defined maximum message size that is
+ * expected by the in/out communication pipes in FW.
+ */
+#define SST_BYT_IPC_MAX_PAYLOAD_SIZE	200
+
+/* stream API */
+struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id,
+	uint32_t (*get_write_position)(struct sst_byt_stream *stream,
+				       void *data),
+	void *data);
+
+/* stream configuration */
+int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream,
+			    int bits);
+int sst_byt_stream_set_channels(struct sst_byt *byt,
+				struct sst_byt_stream *stream, u8 channels);
+int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream,
+			    unsigned int rate);
+int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream,
+			int codec_type, int stream_type, int operation);
+int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream,
+			  uint32_t buffer_addr, uint32_t buffer_size);
+int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream);
+int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream);
+
+/* stream ALSA trigger operations */
+int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream);
+int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream);
+int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream);
+int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream);
+
+int sst_byt_get_dsp_position(struct sst_byt *byt,
+			     struct sst_byt_stream *stream, int buffer_size);
+
+/* init */
+int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata);
+void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata);
+struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt);
+
+#endif

sound/soc/intel/sst-baytrail-pcm.c

+/*
+ * Intel Baytrail SST PCM Support
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "sst-baytrail-ipc.h"
+#include "sst-dsp-priv.h"
+#include "sst-dsp.h"
+
+#define BYT_PCM_COUNT		2
+
+static const struct snd_pcm_hardware sst_byt_pcm_hardware = {
+	.info			= SNDRV_PCM_INFO_MMAP |
+				  SNDRV_PCM_INFO_MMAP_VALID |
+				  SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_PAUSE |
+				  SNDRV_PCM_INFO_RESUME,
+	.formats		= SNDRV_PCM_FMTBIT_S16_LE |
+				  SNDRV_PCM_FORMAT_S24_LE,
+	.period_bytes_min	= 384,
+	.period_bytes_max	= 48000,
+	.periods_min		= 2,
+	.periods_max		= 250,
+	.buffer_bytes_max	= 96000,
+};
+
+/* private data for each PCM DSP stream */
+struct sst_byt_pcm_data {
+	struct sst_byt_stream *stream;
+	struct snd_pcm_substream *substream;
+	struct mutex mutex;
+};
+
+/* private data for the driver */
+struct sst_byt_priv_data {
+	/* runtime DSP */
+	struct sst_byt *byt;
+
+	/* DAI data */
+	struct sst_byt_pcm_data pcm[BYT_PCM_COUNT];
+};
+
+/* this may get called several times by oss emulation */
+static int sst_byt_pcm_hw_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct sst_byt_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct sst_byt_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_byt *byt = pdata->byt;
+	u32 rate, bits;
+	u8 channels;
+	int ret, playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+
+	dev_dbg(rtd->dev, "PCM: hw_params, pcm_data %p\n", pcm_data);
+
+	ret = sst_byt_stream_type(byt, pcm_data->stream,
+				  1, 1, !playback);
+	if (ret < 0) {
+		dev_err(rtd->dev, "failed to set stream format %d\n", ret);
+		return ret;
+	}
+
+	rate = params_rate(params);
+	ret = sst_byt_stream_set_rate(byt, pcm_data->stream, rate);
+	if (ret < 0) {
+		dev_err(rtd->dev, "could not set rate %d\n", rate);
+		return ret;
+	}
+
+	bits = snd_pcm_format_width(params_format(params));
+	ret = sst_byt_stream_set_bits(byt, pcm_data->stream, bits);
+	if (ret < 0) {
+		dev_err(rtd->dev, "could not set formats %d\n",
+			params_rate(params));
+		return ret;
+	}
+
+	channels = (u8)(params_channels(params) & 0xF);
+	ret = sst_byt_stream_set_channels(byt, pcm_data->stream, channels);
+	if (ret < 0) {
+		dev_err(rtd->dev, "could not set channels %d\n",
+			params_rate(params));
+		return ret;
+	}
+
+	snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+
+	ret = sst_byt_stream_buffer(byt, pcm_data->stream,
+				    substream->dma_buffer.addr,
+				    params_buffer_bytes(params));
+	if (ret < 0) {
+		dev_err(rtd->dev, "PCM: failed to set DMA buffer %d\n", ret);
+		return ret;
+	}
+
+	ret = sst_byt_stream_commit(byt, pcm_data->stream);
+	if (ret < 0) {
+		dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int sst_byt_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	dev_dbg(rtd->dev, "PCM: hw_free\n");
+	snd_pcm_lib_free_pages(substream);
+
+	return 0;
+}
+
+static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct sst_byt_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct sst_byt_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_byt *byt = pdata->byt;
+
+	dev_dbg(rtd->dev, "PCM: trigger %d\n", cmd);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		sst_byt_stream_start(byt, pcm_data->stream);
+		break;
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		sst_byt_stream_resume(byt, pcm_data->stream);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		sst_byt_stream_stop(byt, pcm_data->stream);
+		break;
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		sst_byt_stream_pause(byt, pcm_data->stream);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static u32 byt_notify_pointer(struct sst_byt_stream *stream, void *data)
+{
+	struct sst_byt_pcm_data *pcm_data = data;
+	struct snd_pcm_substream *substream = pcm_data->substream;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	u32 pos;
+
+	pos = frames_to_bytes(runtime,
+			      (runtime->control->appl_ptr %
+			       runtime->buffer_size));
+
+	dev_dbg(rtd->dev, "PCM: App pointer %d bytes\n", pos);
+
+	snd_pcm_period_elapsed(substream);
+	return pos;
+}
+
+static snd_pcm_uframes_t sst_byt_pcm_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct sst_byt_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct sst_byt_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_byt *byt = pdata->byt;
+	snd_pcm_uframes_t offset;
+	int pos;
+
+	pos = sst_byt_get_dsp_position(byt, pcm_data->stream,
+				       snd_pcm_lib_buffer_bytes(substream));
+	offset = bytes_to_frames(runtime, pos);
+
+	dev_dbg(rtd->dev, "PCM: DMA pointer %zu bytes\n",
+		frames_to_bytes(runtime, (u32)offset));
+	return offset;
+}
+
+static int sst_byt_pcm_open(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct sst_byt_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct sst_byt_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_byt *byt = pdata->byt;
+
+	dev_dbg(rtd->dev, "PCM: open\n");
+
+	pcm_data = &pdata->pcm[rtd->cpu_dai->id];
+	mutex_lock(&pcm_data->mutex);
+
+	snd_soc_pcm_set_drvdata(rtd, pcm_data);
+	pcm_data->substream = substream;
+
+	snd_soc_set_runtime_hwparams(substream, &sst_byt_pcm_hardware);
+
+	pcm_data->stream = sst_byt_stream_new(byt, rtd->cpu_dai->id + 1,
+					      byt_notify_pointer, pcm_data);
+	if (pcm_data->stream == NULL) {
+		dev_err(rtd->dev, "failed to create stream\n");
+		mutex_unlock(&pcm_data->mutex);
+		return -EINVAL;
+	}
+
+	mutex_unlock(&pcm_data->mutex);
+	return 0;
+}
+
+static int sst_byt_pcm_close(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct sst_byt_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct sst_byt_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_byt *byt = pdata->byt;
+	int ret;
+
+	dev_dbg(rtd->dev, "PCM: close\n");
+
+	mutex_lock(&pcm_data->mutex);
+	ret = sst_byt_stream_free(byt, pcm_data->stream);
+	if (ret < 0) {
+		dev_dbg(rtd->dev, "Free stream fail\n");
+		goto out;
+	}
+	pcm_data->stream = NULL;
+
+out:
+	mutex_unlock(&pcm_data->mutex);
+	return ret;
+}
+
+static int sst_byt_pcm_mmap(struct snd_pcm_substream *substream,
+			    struct vm_area_struct *vma)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	dev_dbg(rtd->dev, "PCM: mmap\n");
+	return snd_pcm_lib_default_mmap(substream, vma);
+}
+
+static struct snd_pcm_ops sst_byt_pcm_ops = {
+	.open		= sst_byt_pcm_open,
+	.close		= sst_byt_pcm_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= sst_byt_pcm_hw_params,
+	.hw_free	= sst_byt_pcm_hw_free,
+	.trigger	= sst_byt_pcm_trigger,
+	.pointer	= sst_byt_pcm_pointer,
+	.mmap		= sst_byt_pcm_mmap,
+};
+
+static void sst_byt_pcm_free(struct snd_pcm *pcm)
+{
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static int sst_byt_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_pcm *pcm = rtd->pcm;
+	size_t size;
+	int ret = 0;
+
+	ret = dma_coerce_mask_and_coherent(rtd->card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
+	    pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+		size = sst_byt_pcm_hardware.buffer_bytes_max;
+		ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
+							    SNDRV_DMA_TYPE_DEV,
+							    rtd->card->dev,
+							    size, size);
+		if (ret) {
+			dev_err(rtd->dev, "dma buffer allocation failed %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+static struct snd_soc_dai_driver byt_dais[] = {
+	{
+		.name  = "Front-cpu-dai",
+		.playback = {
+			.stream_name = "System Playback",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S24_3LE |
+				   SNDRV_PCM_FMTBIT_S16_LE,
+		},
+	},
+	{
+		.name  = "Mic1-cpu-dai",
+		.capture = {
+			.stream_name = "Analog Capture",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,
+		},
+	},
+};
+
+static int sst_byt_pcm_probe(struct snd_soc_platform *platform)
+{
+	struct sst_pdata *plat_data = dev_get_platdata(platform->dev);
+	struct sst_byt_priv_data *priv_data;
+	int i;
+
+	if (!plat_data)
+		return -ENODEV;
+
+	priv_data = devm_kzalloc(platform->dev, sizeof(*priv_data),
+				 GFP_KERNEL);
+	priv_data->byt = plat_data->dsp;
+	snd_soc_platform_set_drvdata(platform, priv_data);
+
+	for (i = 0; i < ARRAY_SIZE(byt_dais); i++)
+		mutex_init(&priv_data->pcm[i].mutex);
+
+	return 0;
+}
+
+static int sst_byt_pcm_remove(struct snd_soc_platform *platform)
+{
+	return 0;
+}
+
+static struct snd_soc_platform_driver byt_soc_platform = {
+	.probe		= sst_byt_pcm_probe,
+	.remove		= sst_byt_pcm_remove,
+	.ops		= &sst_byt_pcm_ops,
+	.pcm_new	= sst_byt_pcm_new,
+	.pcm_free	= sst_byt_pcm_free,
+};
+
+static const struct snd_soc_component_driver byt_dai_component = {
+	.name		= "byt-dai",
+};
+
+static int sst_byt_pcm_dev_probe(struct platform_device *pdev)
+{
+	struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
+	int ret;
+
+	ret = sst_byt_dsp_init(&pdev->dev, sst_pdata);
+	if (ret < 0)
+		return -ENODEV;
+
+	ret = snd_soc_register_platform(&pdev->dev, &byt_soc_platform);
+	if (ret < 0)
+		goto err_plat;
+
+	ret = snd_soc_register_component(&pdev->dev, &byt_dai_component,
+					 byt_dais, ARRAY_SIZE(byt_dais));
+	if (ret < 0)
+		goto err_comp;
+
+	return 0;
+
+err_comp:
+	snd_soc_unregister_platform(&pdev->dev);
+err_plat:
+	sst_byt_dsp_free(&pdev->dev, sst_pdata);
+	return ret;
+}
+
+static int sst_byt_pcm_dev_remove(struct platform_device *pdev)
+{
+	struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
+
+	snd_soc_unregister_platform(&pdev->dev);
+	snd_soc_unregister_component(&pdev->dev);
+	sst_byt_dsp_free(&pdev->dev, sst_pdata);
+
+	return 0;
+}
+
+static struct platform_driver sst_byt_pcm_driver = {
+	.driver = {
+		.name = "baytrail-pcm-audio",
+		.owner = THIS_MODULE,
+	},
+
+	.probe = sst_byt_pcm_dev_probe,
+	.remove = sst_byt_pcm_dev_remove,
+};
+module_platform_driver(sst_byt_pcm_driver);
+
+MODULE_AUTHOR("Jarkko Nikula");
+MODULE_DESCRIPTION("Baytrail PCM");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:baytrail-pcm-audio");

sound/soc/intel/sst-dsp-priv.h

+/*
+ * Intel Smart Sound Technology
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __SOUND_SOC_SST_DSP_PRIV_H
+#define __SOUND_SOC_SST_DSP_PRIV_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/firmware.h>
+
+struct sst_mem_block;
+struct sst_module;
+struct sst_fw;
+
+/*
+ * DSP Operations exported by platform Audio DSP driver.
+ */
+struct sst_ops {
+	/* DSP core boot / reset */
+	void (*boot)(struct sst_dsp *);
+	void (*reset)(struct sst_dsp *);
+
+	/* Shim IO */
+	void (*write)(void __iomem *addr, u32 offset, u32 value);
+	u32 (*read)(void __iomem *addr, u32 offset);
+	void (*write64)(void __iomem *addr, u32 offset, u64 value);
+	u64 (*read64)(void __iomem *addr, u32 offset);
+
+	/* DSP I/DRAM IO */
+	void (*ram_read)(struct sst_dsp *sst, void  *dest, void __iomem *src,
+		size_t bytes);
+	void (*ram_write)(struct sst_dsp *sst, void __iomem *dest, void *src,
+		size_t bytes);
+
+	void (*dump)(struct sst_dsp *);
+
+	/* IRQ handlers */
+	irqreturn_t (*irq_handler)(int irq, void *context);
+
+	/* SST init and free */
+	int (*init)(struct sst_dsp *sst, struct sst_pdata *pdata);
+	void (*free)(struct sst_dsp *sst);
+
+	/* FW module parser/loader */
+	int (*parse_fw)(struct sst_fw *sst_fw);
+};
+
+/*
+ * Audio DSP memory offsets and addresses.
+ */
+struct sst_addr {
+	u32 lpe_base;
+	u32 shim_offset;
+	u32 iram_offset;
+	u32 dram_offset;
+	void __iomem *lpe;
+	void __iomem *shim;
+	void __iomem *pci_cfg;
+	void __iomem *fw_ext;
+};
+
+/*
+ * Audio DSP Mailbox configuration.
+ */
+struct sst_mailbox {
+	void __iomem *in_base;
+	void __iomem *out_base;
+	size_t in_size;
+	size_t out_size;
+};
+
+/*
+ * Audio DSP Firmware data types.
+ */
+enum sst_data_type {
+	SST_DATA_M	= 0, /* module block data */
+	SST_DATA_P	= 1, /* peristant data (text, data) */
+	SST_DATA_S	= 2, /* scratch data (usually buffers) */
+};
+
+/*
+ * Audio DSP memory block types.
+ */
+enum sst_mem_type {
+	SST_MEM_IRAM = 0,
+	SST_MEM_DRAM = 1,
+	SST_MEM_ANY  = 2,
+	SST_MEM_CACHE= 3,
+};
+
+/*
+ * Audio DSP Generic Firmware File.
+ *
+ * SST Firmware files can consist of 1..N modules. This generic structure is
+ * used to manage each firmware file and it's modules regardless of SST firmware
+ * type. A SST driver may load multiple FW files.
+ */
+struct sst_fw {
+	struct sst_dsp *dsp;
+
+	/* base addresses of FW file data */
+	dma_addr_t dmable_fw_paddr;	/* physical address of fw data */
+	void *dma_buf;			/* virtual address of fw data */
+	u32 size;			/* size of fw data */
+
+	/* lists */
+	struct list_head list;		/* DSP list of FW */
+	struct list_head module_list;	/* FW list of modules */
+
+	void *private;			/* core doesn't touch this */
+};
+
+/*
+ * Audio DSP Generic Module data.
+ *
+ * This is used to dsecribe any sections of persistent (text and data) and
+ * scratch (buffers) of module data in ADSP memory space.
+ */
+struct sst_module_data {
+
+	enum sst_mem_type type;		/* destination memory type */
+	enum sst_data_type data_type;	/* type of module data */
+
+	u32 size;		/* size in bytes */
+	u32 offset;		/* offset in FW file */
+	u32 data_offset;	/* offset in ADSP memory space */
+	void *data;		/* module data */
+};
+
+/*
+ * Audio DSP Generic Module Template.
+ *
+ * Used to define and register a new FW module. This data is extracted from
+ * FW module header information.
+ */
+struct sst_module_template {
+	u32 id;
+	u32 entry;			/* entry point */
+	struct sst_module_data s;	/* scratch data */
+	struct sst_module_data p;	/* peristant data */
+};
+
+/*
+ * Audio DSP Generic Module.
+ *
+ * Each Firmware file can consist of 1..N modules. A module can span multiple
+ * ADSP memory blocks. The simplest FW will be a file with 1 module.
+ */
+struct sst_module {
+	struct sst_dsp *dsp;
+	struct sst_fw *sst_fw;		/* parent FW we belong too */
+
+	/* module configuration */
+	u32 id;
+	u32 entry;			/* module entry point */
+	u32 offset;			/* module offset in firmware file */
+	u32 size;			/* module size */
+	struct sst_module_data s;	/* scratch data */
+	struct sst_module_data p;	/* peristant data */
+
+	/* runtime */
+	u32 usage_count;		/* can be unloaded if count == 0 */
+	void *private;			/* core doesn't touch this */
+
+	/* lists */
+	struct list_head block_list;	/* Module list of blocks in use */
+	struct list_head list;		/* DSP list of modules */
+	struct list_head list_fw;	/* FW list of modules */
+};
+
+/*
+ * SST Memory Block operations.
+ */
+struct sst_block_ops {
+	int (*enable)(struct sst_mem_block *block);
+	int (*disable)(struct sst_mem_block *block);
+};
+
+/*
+ * SST Generic Memory Block.
+ *
+ * SST ADP  memory has multiple IRAM and DRAM blocks. Some ADSP blocks can be
+ * power gated.
+ */
+struct sst_mem_block {
+	struct sst_dsp *dsp;
+	struct sst_module *module;	/* module that uses this block */
+
+	/* block config */
+	u32 offset;			/* offset from base */
+	u32 size;			/* block size */
+	u32 index;			/* block index 0..N */
+	enum sst_mem_type type;		/* block memory type IRAM/DRAM */
+	struct sst_block_ops *ops;	/* block operations, if any */
+
+	/* block status */
+	enum sst_data_type data_type;	/* data type held in this block */
+	u32 bytes_used;			/* bytes in use by modules */
+	void *private;			/* generic core does not touch this */
+	int users;			/* number of modules using this block */
+
+	/* block lists */
+	struct list_head module_list;	/* Module list of blocks */
+	struct list_head list;		/* Map list of free/used blocks */
+};
+
+/*
+ * Generic SST Shim Interface.
+ */
+struct sst_dsp {
+
+	/* runtime */
+	struct sst_dsp_device *sst_dev;
+	spinlock_t spinlock;	/* IPC locking */
+	struct mutex mutex;	/* DSP FW lock */
+	struct device *dev;
+	void *thread_context;
+	int irq;
+	u32 id;
+
+	/* list of free and used ADSP memory blocks */
+	struct list_head used_block_list;
+	struct list_head free_block_list;
+
+	/* operations */
+	struct sst_ops *ops;
+
+	/* debug FS */
+	struct dentry *debugfs_root;
+
+	/* base addresses */
+	struct sst_addr addr;
+
+	/* mailbox */
+	struct sst_mailbox mailbox;
+
+	/* SST FW files loaded and their modules */
+	struct list_head module_list;
+	struct list_head fw_list;
+
+	/* platform data */
+	struct sst_pdata *pdata;
+
+	/* DMA FW loading */
+	struct sst_dma *dma;
+	bool fw_use_dma;
+};
+
+/* Size optimised DRAM/IRAM memcpy */
+static inline void sst_dsp_write(struct sst_dsp *sst, void *src,
+	u32 dest_offset, size_t bytes)
+{
+	sst->ops->ram_write(sst, sst->addr.lpe + dest_offset, src, bytes);
+}
+
+static inline void sst_dsp_read(struct sst_dsp *sst, void *dest,
+	u32 src_offset, size_t bytes)
+{
+	sst->ops->ram_read(sst, dest, sst->addr.lpe + src_offset, bytes);
+}
+
+static inline void *sst_dsp_get_thread_context(struct sst_dsp *sst)
+{
+	return sst->thread_context;
+}
+
+/* Create/Free FW files - can contain multiple modules */
+struct sst_fw *sst_fw_new(struct sst_dsp *dsp,
+	const struct firmware *fw, void *private);
+void sst_fw_free(struct sst_fw *sst_fw);
+void sst_fw_free_all(struct sst_dsp *dsp);
+
+/* Create/Free firmware modules */
+struct sst_module *sst_module_new(struct sst_fw *sst_fw,
+	struct sst_module_template *template, void *private);
+void sst_module_free(struct sst_module *sst_module);
+int sst_module_insert(struct sst_module *sst_module);
+int sst_module_remove(struct sst_module *sst_module);
+int sst_module_insert_fixed_block(struct sst_module *module,
+	struct sst_module_data *data);
+struct sst_module *sst_module_get_from_id(struct sst_dsp *dsp, u32 id);
+
+/* allocate/free pesistent/scratch memory regions managed by drv */
+struct sst_module *sst_mem_block_alloc_scratch(struct sst_dsp *dsp);
+void sst_mem_block_free_scratch(struct sst_dsp *dsp,
+	struct sst_module *scratch);
+int sst_block_module_remove(struct sst_module *module);
+
+/* Register the DSPs memory blocks - would be nice to read from ACPI */
+struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
+	u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
+	void *private);
+void sst_mem_block_unregister_all(struct sst_dsp *dsp);
+
+#endif

sound/soc/intel/sst-dsp.c

+/*
+ * Intel Smart Sound Technology (SST) DSP Core Driver
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include "sst-dsp.h"
+#include "sst-dsp-priv.h"
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/intel-sst.h>
+
+/* Internal generic low-level SST IO functions - can be overidden */
+void sst_shim32_write(void __iomem *addr, u32 offset, u32 value)
+{
+	writel(value, addr + offset);
+}
+EXPORT_SYMBOL_GPL(sst_shim32_write);
+
+u32 sst_shim32_read(void __iomem *addr, u32 offset)
+{
+	return readl(addr + offset);
+}
+EXPORT_SYMBOL_GPL(sst_shim32_read);
+
+void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value)
+{
+	memcpy_toio(addr + offset, &value, sizeof(value));
+}
+EXPORT_SYMBOL_GPL(sst_shim32_write64);
+
+u64 sst_shim32_read64(void __iomem *addr, u32 offset)
+{
+	u64 val;
+
+	memcpy_fromio(&val, addr + offset, sizeof(val));
+	return val;
+}
+EXPORT_SYMBOL_GPL(sst_shim32_read64);
+
+static inline void _sst_memcpy_toio_32(volatile u32 __iomem *dest,
+	u32 *src, size_t bytes)
+{
+	int i, words = bytes >> 2;
+
+	for (i = 0; i < words; i++)
+		writel(src[i], dest + i);
+}
+
+static inline void _sst_memcpy_fromio_32(u32 *dest,
+	const volatile __iomem u32 *src, size_t bytes)
+{
+	int i, words = bytes >> 2;
+
+	for (i = 0; i < words; i++)
+		dest[i] = readl(src + i);
+}
+
+void sst_memcpy_toio_32(struct sst_dsp *sst,
+	void __iomem *dest, void *src, size_t bytes)
+{
+	_sst_memcpy_toio_32(dest, src, bytes);
+}
+EXPORT_SYMBOL_GPL(sst_memcpy_toio_32);
+
+void sst_memcpy_fromio_32(struct sst_dsp *sst, void *dest,
+	void __iomem *src, size_t bytes)
+{
+	_sst_memcpy_fromio_32(dest, src, bytes);
+}
+EXPORT_SYMBOL_GPL(sst_memcpy_fromio_32);
+
+/* Public API */
+void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+	sst->ops->write(sst->addr.shim, offset, value);
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_write);
+
+u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset)
+{
+	unsigned long flags;
+	u32 val;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+	val = sst->ops->read(sst->addr.shim, offset);
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_read);
+
+void sst_dsp_shim_write64(struct sst_dsp *sst, u32 offset, u64 value)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+	sst->ops->write64(sst->addr.shim, offset, value);
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_write64);
+
+u64 sst_dsp_shim_read64(struct sst_dsp *sst, u32 offset)
+{
+	unsigned long flags;
+	u64 val;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+	val = sst->ops->read64(sst->addr.shim, offset);
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_read64);
+
+void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value)
+{
+	sst->ops->write(sst->addr.shim, offset, value);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_write_unlocked);
+
+u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset)
+{
+	return sst->ops->read(sst->addr.shim, offset);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_read_unlocked);
+
+void sst_dsp_shim_write64_unlocked(struct sst_dsp *sst, u32 offset, u64 value)
+{
+	sst->ops->write64(sst->addr.shim, offset, value);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_write64_unlocked);
+
+u64 sst_dsp_shim_read64_unlocked(struct sst_dsp *sst, u32 offset)
+{
+	return sst->ops->read64(sst->addr.shim, offset);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_read64_unlocked);
+
+int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value)
+{
+	bool change;
+	unsigned int old, new;
+	u32 ret;
+
+	ret = sst_dsp_shim_read_unlocked(sst, offset);
+
+	old = ret;
+	new = (old & (~mask)) | (value & mask);
+
+	change = (old != new);
+	if (change)
+		sst_dsp_shim_write_unlocked(sst, offset, new);
+
+	return change;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits_unlocked);
+
+int sst_dsp_shim_update_bits64_unlocked(struct sst_dsp *sst, u32 offset,
+				u64 mask, u64 value)
+{
+	bool change;
+	u64 old, new;
+
+	old = sst_dsp_shim_read64_unlocked(sst, offset);
+
+	new = (old & (~mask)) | (value & mask);
+
+	change = (old != new);
+	if (change)
+		sst_dsp_shim_write64_unlocked(sst, offset, new);
+
+	return change;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits64_unlocked);
+
+int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value)
+{
+	unsigned long flags;
+	bool change;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+	change = sst_dsp_shim_update_bits_unlocked(sst, offset, mask, value);
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+	return change;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits);
+
+int sst_dsp_shim_update_bits64(struct sst_dsp *sst, u32 offset,
+				u64 mask, u64 value)
+{
+	unsigned long flags;
+	bool change;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+	change = sst_dsp_shim_update_bits64_unlocked(sst, offset, mask, value);
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+	return change;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits64);
+
+void sst_dsp_dump(struct sst_dsp *sst)
+{
+	sst->ops->dump(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_dump);
+
+void sst_dsp_reset(struct sst_dsp *sst)
+{
+	sst->ops->reset(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_reset);
+
+int sst_dsp_boot(struct sst_dsp *sst)
+{
+	sst->ops->boot(sst);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_boot);
+
+void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg)
+{
+	sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY);
+	trace_sst_ipc_msg_tx(msg);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_ipc_msg_tx);
+
+u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp)
+{
+	u32 msg;
+
+	msg = sst_dsp_shim_read_unlocked(dsp, SST_IPCX);
+	trace_sst_ipc_msg_rx(msg);
+
+	return msg;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_ipc_msg_rx);
+
+int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset, size_t inbox_size,
+	u32 outbox_offset, size_t outbox_size)
+{
+	sst->mailbox.in_base = sst->addr.lpe + inbox_offset;
+	sst->mailbox.out_base = sst->addr.lpe + outbox_offset;
+	sst->mailbox.in_size = inbox_size;
+	sst->mailbox.out_size = outbox_size;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_mailbox_init);
+
+void sst_dsp_outbox_write(struct sst_dsp *sst, void *message, size_t bytes)
+{
+	u32 i;
+
+	trace_sst_ipc_outbox_write(bytes);
+
+	memcpy_toio(sst->mailbox.out_base, message, bytes);
+
+	for (i = 0; i < bytes; i += 4)
+		trace_sst_ipc_outbox_wdata(i, *(u32 *)(message + i));
+}
+EXPORT_SYMBOL_GPL(sst_dsp_outbox_write);
+
+void sst_dsp_outbox_read(struct sst_dsp *sst, void *message, size_t bytes)
+{
+	u32 i;
+
+	trace_sst_ipc_outbox_read(bytes);
+
+	memcpy_fromio(message, sst->mailbox.out_base, bytes);
+
+	for (i = 0; i < bytes; i += 4)
+		trace_sst_ipc_outbox_rdata(i, *(u32 *)(message + i));
+}
+EXPORT_SYMBOL_GPL(sst_dsp_outbox_read);
+
+void sst_dsp_inbox_write(struct sst_dsp *sst, void *message, size_t bytes)
+{
+	u32 i;
+
+	trace_sst_ipc_inbox_write(bytes);
+
+	memcpy_toio(sst->mailbox.in_base, message, bytes);
+
+	for (i = 0; i < bytes; i += 4)
+		trace_sst_ipc_inbox_wdata(i, *(u32 *)(message + i));
+}
+EXPORT_SYMBOL_GPL(sst_dsp_inbox_write);
+
+void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes)
+{
+	u32 i;
+
+	trace_sst_ipc_inbox_read(bytes);
+
+	memcpy_fromio(message, sst->mailbox.in_base, bytes);
+
+	for (i = 0; i < bytes; i += 4)
+		trace_sst_ipc_inbox_rdata(i, *(u32 *)(message + i));
+}
+EXPORT_SYMBOL_GPL(sst_dsp_inbox_read);
+
+struct sst_dsp *sst_dsp_new(struct device *dev,
+	struct sst_dsp_device *sst_dev, struct sst_pdata *pdata)
+{
+	struct sst_dsp *sst;
+	int err;
+
+	dev_dbg(dev, "initialising audio DSP id 0x%x\n", pdata->id);
+
+	sst = devm_kzalloc(dev, sizeof(*sst), GFP_KERNEL);
+	if (sst == NULL)
+		return NULL;
+
+	spin_lock_init(&sst->spinlock);
+	mutex_init(&sst->mutex);
+	sst->dev = dev;
+	sst->thread_context = sst_dev->thread_context;
+	sst->sst_dev = sst_dev;
+	sst->id = pdata->id;
+	sst->irq = pdata->irq;
+	sst->ops = sst_dev->ops;
+	sst->pdata = pdata;
+	INIT_LIST_HEAD(&sst->used_block_list);
+	INIT_LIST_HEAD(&sst->free_block_list);
+	INIT_LIST_HEAD(&sst->module_list);
+	INIT_LIST_HEAD(&sst->fw_list);
+
+	/* Initialise SST Audio DSP */
+	if (sst->ops->init) {
+		err = sst->ops->init(sst, pdata);
+		if (err < 0)
+			return NULL;
+	}
+
+	/* Register the ISR */
+	err = request_threaded_irq(sst->irq, sst->ops->irq_handler,
+		sst_dev->thread, IRQF_SHARED, "AudioDSP", sst);
+	if (err)
+		goto irq_err;
+
+	return sst;
+
+irq_err:
+	if (sst->ops->free)
+		sst->ops->free(sst);
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_new);
+
+void sst_dsp_free(struct sst_dsp *sst)
+{
+	free_irq(sst->irq, sst);
+	if (sst->ops->free)
+		sst->ops->free(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_free);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_DESCRIPTION("Intel SST Core");
+MODULE_LICENSE("GPL v2");

sound/soc/intel/sst-dsp.h

+/*
+ * Intel Smart Sound Technology (SST) Core
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __SOUND_SOC_SST_DSP_H
+#define __SOUND_SOC_SST_DSP_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+
+/* SST Device IDs  */
+#define SST_DEV_ID_LYNX_POINT		0x33C8
+#define SST_DEV_ID_WILDCAT_POINT	0x3438
+#define SST_DEV_ID_BYT			0x0F28
+
+/* Supported SST DMA Devices */
+#define SST_DMA_TYPE_DW		1
+#define SST_DMA_TYPE_MID	2
+
+/* SST Shim register map
+ * The register naming can differ between products. Some products also
+ * contain extra functionality.
+ */
+#define SST_CSR			0x00
+#define SST_PISR		0x08
+#define SST_PIMR		0x10
+#define SST_ISRX		0x18
+#define SST_ISRD		0x20
+#define SST_IMRX		0x28
+#define SST_IMRD		0x30
+#define SST_IPCX		0x38 /* IPC IA -> SST */
+#define SST_IPCD		0x40 /* IPC SST -> IA */
+#define SST_ISRSC		0x48
+#define SST_ISRLPESC		0x50
+#define SST_IMRSC		0x58
+#define SST_IMRLPESC		0x60
+#define SST_IPCSC		0x68
+#define SST_IPCLPESC		0x70
+#define SST_CLKCTL		0x78
+#define SST_CSR2		0x80
+#define SST_LTRC		0xE0
+#define SST_HDMC		0xE8
+#define SST_DBGO		0xF0
+
+#define SST_SHIM_SIZE		0x100
+#define SST_PWMCTRL             0x1000
+
+/* SST Shim Register bits
+ * The register bit naming can differ between products. Some products also
+ * contain extra functionality.
+ */
+
+/* CSR / CS */
+#define SST_CSR_RST		(0x1 << 1)
+#define SST_CSR_SBCS0		(0x1 << 2)
+#define SST_CSR_SBCS1		(0x1 << 3)
+#define SST_CSR_DCS(x)		(x << 4)
+#define SST_CSR_DCS_MASK	(0x7 << 4)
+#define SST_CSR_STALL		(0x1 << 10)
+#define SST_CSR_S0IOCS		(0x1 << 21)
+#define SST_CSR_S1IOCS		(0x1 << 23)
+#define SST_CSR_LPCS		(0x1 << 31)
+#define SST_BYT_CSR_RST		(0x1 << 0)
+#define SST_BYT_CSR_VECTOR_SEL	(0x1 << 1)
+#define SST_BYT_CSR_STALL	(0x1 << 2)
+#define SST_BYT_CSR_PWAITMODE	(0x1 << 3)
+
+/*  ISRX / ISC */
+#define SST_ISRX_BUSY		(0x1 << 1)
+#define SST_ISRX_DONE		(0x1 << 0)
+#define SST_BYT_ISRX_REQUEST	(0x1 << 1)
+
+/*  ISRD / ISD */
+#define SST_ISRD_BUSY		(0x1 << 1)
+#define SST_ISRD_DONE		(0x1 << 0)
+
+/* IMRX / IMC */
+#define SST_IMRX_BUSY		(0x1 << 1)
+#define SST_IMRX_DONE		(0x1 << 0)
+#define SST_BYT_IMRX_REQUEST	(0x1 << 1)
+
+/*  IPCX / IPCC */
+#define	SST_IPCX_DONE		(0x1 << 30)
+#define	SST_IPCX_BUSY		(0x1 << 31)
+#define SST_BYT_IPCX_DONE	((u64)0x1 << 62)
+#define SST_BYT_IPCX_BUSY	((u64)0x1 << 63)
+
+/*  IPCD */
+#define	SST_IPCD_DONE		(0x1 << 30)
+#define	SST_IPCD_BUSY		(0x1 << 31)
+#define SST_BYT_IPCD_DONE	((u64)0x1 << 62)
+#define SST_BYT_IPCD_BUSY	((u64)0x1 << 63)
+
+/* CLKCTL */
+#define SST_CLKCTL_SMOS(x)	(x << 24)
+#define SST_CLKCTL_MASK		(3 << 24)
+#define SST_CLKCTL_DCPLCG	(1 << 18)
+#define SST_CLKCTL_SCOE1	(1 << 17)
+#define SST_CLKCTL_SCOE0	(1 << 16)
+
+/* CSR2 / CS2 */
+#define SST_CSR2_SDFD_SSP0	(1 << 1)
+#define SST_CSR2_SDFD_SSP1	(1 << 2)
+
+/* LTRC */
+#define SST_LTRC_VAL(x)		(x << 0)
+
+/* HDMC */
+#define SST_HDMC_HDDA0(x)	(x << 0)
+#define SST_HDMC_HDDA1(x)	(x << 7)
+
+
+/* SST Vendor Defined Registers and bits */
+#define SST_VDRTCTL0		0xa0
+#define SST_VDRTCTL1		0xa4
+#define SST_VDRTCTL2		0xa8
+#define SST_VDRTCTL3		0xaC
+
+/* VDRTCTL0 */
+#define SST_VDRTCL0_DSRAMPGE_SHIFT	16
+#define SST_VDRTCL0_DSRAMPGE_MASK	(0xffff << SST_VDRTCL0_DSRAMPGE_SHIFT)
+#define SST_VDRTCL0_ISRAMPGE_SHIFT	6
+#define SST_VDRTCL0_ISRAMPGE_MASK	(0x3ff << SST_VDRTCL0_ISRAMPGE_SHIFT)
+
+struct sst_dsp;
+
+/*
+ * SST Device.
+ *
+ * This structure is populated by the SST core driver.
+ */
+struct sst_dsp_device {
+	/* Mandatory fields */
+	struct sst_ops *ops;
+	irqreturn_t (*thread)(int irq, void *context);
+	void *thread_context;
+};
+
+/*
+ * SST Platform Data.
+ */
+struct sst_pdata {
+	/* ACPI data */
+	u32 lpe_base;
+	u32 lpe_size;
+	u32 pcicfg_base;
+	u32 pcicfg_size;
+	u32 fw_base;
+	u32 fw_size;
+	int irq;
+
+	/* Firmware */
+	const struct firmware *fw;
+
+	/* DMA */
+	u32 dma_base;
+	u32 dma_size;
+	int dma_engine;
+
+	/* DSP */
+	u32 id;
+	void *dsp;
+};
+
+/* Initialization */
+struct sst_dsp *sst_dsp_new(struct device *dev,
+	struct sst_dsp_device *sst_dev, struct sst_pdata *pdata);
+void sst_dsp_free(struct sst_dsp *sst);
+
+/* SHIM Read / Write */
+void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value);
+u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value);
+void sst_dsp_shim_write64(struct sst_dsp *sst, u32 offset, u64 value);
+u64 sst_dsp_shim_read64(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits64(struct sst_dsp *sst, u32 offset,
+				u64 mask, u64 value);
+
+/* SHIM Read / Write Unlocked for callers already holding sst lock */
+void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value);
+u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value);
+void sst_dsp_shim_write64_unlocked(struct sst_dsp *sst, u32 offset, u64 value);
+u64 sst_dsp_shim_read64_unlocked(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits64_unlocked(struct sst_dsp *sst, u32 offset,
+					u64 mask, u64 value);
+
+/* Internal generic low-level SST IO functions - can be overidden */
+void sst_shim32_write(void __iomem *addr, u32 offset, u32 value);
+u32 sst_shim32_read(void __iomem *addr, u32 offset);
+void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value);
+u64 sst_shim32_read64(void __iomem *addr, u32 offset);
+void sst_memcpy_toio_32(struct sst_dsp *sst,
+			void __iomem *dest, void *src, size_t bytes);
+void sst_memcpy_fromio_32(struct sst_dsp *sst,
+			  void *dest, void __iomem *src, size_t bytes);
+
+/* DSP reset & boot */
+void sst_dsp_reset(struct sst_dsp *sst);
+int sst_dsp_boot(struct sst_dsp *sst);
+
+/* Msg IO */
+void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg);
+u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp);
+
+/* Mailbox management */
+int sst_dsp_mailbox_init(struct sst_dsp *dsp, u32 inbox_offset,
+	size_t inbox_size, u32 outbox_offset, size_t outbox_size);
+void sst_dsp_inbox_write(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_inbox_read(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_outbox_write(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_outbox_read(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_mailbox_dump(struct sst_dsp *dsp, size_t bytes);
+
+/* Debug */
+void sst_dsp_dump(struct sst_dsp *sst);
+
+#endif

sound/soc/intel/sst-firmware.c

+/*
+ * Intel SST Firmware Loader
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/export.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/pci.h>
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+#include "sst-dsp.h"
+#include "sst-dsp-priv.h"
+
+static void sst_memcpy32(volatile void __iomem *dest, void *src, u32 bytes)
+{
+	u32 i;
+
+	/* copy one 32 bit word at a time as 64 bit access is not supported */
+	for (i = 0; i < bytes; i += 4)
+		memcpy_toio(dest + i, src + i, 4);
+}
+
+/* create new generic firmware object */
+struct sst_fw *sst_fw_new(struct sst_dsp *dsp, 
+	const struct firmware *fw, void *private)
+{
+	struct sst_fw *sst_fw;
+	int err;
+
+	if (!dsp->ops->parse_fw)
+		return NULL;
+
+	sst_fw = kzalloc(sizeof(*sst_fw), GFP_KERNEL);
+	if (sst_fw == NULL)
+		return NULL;
+
+	sst_fw->dsp = dsp;
+	sst_fw->private = private;
+	sst_fw->size = fw->size;
+
+	err = dma_coerce_mask_and_coherent(dsp->dev, DMA_BIT_MASK(32));
+	if (err < 0) {
+		kfree(sst_fw);
+		return NULL;
+	}
+
+	/* allocate DMA buffer to store FW data */
+	sst_fw->dma_buf = dma_alloc_coherent(dsp->dev, sst_fw->size,
+				&sst_fw->dmable_fw_paddr, GFP_DMA | GFP_KERNEL);
+	if (!sst_fw->dma_buf) {
+		dev_err(dsp->dev, "error: DMA alloc failed\n");
+		kfree(sst_fw);
+		return NULL;
+	}
+
+	/* copy FW data to DMA-able memory */
+	memcpy((void *)sst_fw->dma_buf, (void *)fw->data, fw->size);
+
+	/* call core specific FW paser to load FW data into DSP */
+	err = dsp->ops->parse_fw(sst_fw);
+	if (err < 0) {
+		dev_err(dsp->dev, "error: parse fw failed %d\n", err);
+		goto parse_err;
+	}
+
+	mutex_lock(&dsp->mutex);
+	list_add(&sst_fw->list, &dsp->fw_list);
+	mutex_unlock(&dsp->mutex);
+
+	return sst_fw;
+
+parse_err:
+	dma_free_coherent(dsp->dev, sst_fw->size,
+				sst_fw->dma_buf,
+				sst_fw->dmable_fw_paddr);
+	kfree(sst_fw);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_fw_new);
+
+/* free single firmware object */
+void sst_fw_free(struct sst_fw *sst_fw)
+{
+	struct sst_dsp *dsp = sst_fw->dsp;
+
+	mutex_lock(&dsp->mutex);
+	list_del(&sst_fw->list);
+	mutex_unlock(&dsp->mutex);
+
+	dma_free_coherent(dsp->dev, sst_fw->size, sst_fw->dma_buf,
+			sst_fw->dmable_fw_paddr);
+	kfree(sst_fw);
+}
+EXPORT_SYMBOL_GPL(sst_fw_free);
+
+/* free all firmware objects */
+void sst_fw_free_all(struct sst_dsp *dsp)
+{
+	struct sst_fw *sst_fw, *t;
+
+	mutex_lock(&dsp->mutex);
+	list_for_each_entry_safe(sst_fw, t, &dsp->fw_list, list) {
+
+		list_del(&sst_fw->list);
+		dma_free_coherent(dsp->dev, sst_fw->size, sst_fw->dma_buf,
+			sst_fw->dmable_fw_paddr);
+		kfree(sst_fw);
+	}
+	mutex_unlock(&dsp->mutex);
+}
+EXPORT_SYMBOL_GPL(sst_fw_free_all);
+
+/* create a new SST generic module from FW template */
+struct sst_module *sst_module_new(struct sst_fw *sst_fw,
+	struct sst_module_template *template, void *private)
+{
+	struct sst_dsp *dsp = sst_fw->dsp;
+	struct sst_module *sst_module;
+
+	sst_module = kzalloc(sizeof(*sst_module), GFP_KERNEL);
+	if (sst_module == NULL)
+		return NULL;
+
+	sst_module->id = template->id;
+	sst_module->dsp = dsp;
+	sst_module->sst_fw = sst_fw;
+
+	memcpy(&sst_module->s, &template->s, sizeof(struct sst_module_data));
+	memcpy(&sst_module->p, &template->p, sizeof(struct sst_module_data));
+
+	INIT_LIST_HEAD(&sst_module->block_list);
+
+	mutex_lock(&dsp->mutex);
+	list_add(&sst_module->list, &dsp->module_list);
+	mutex_unlock(&dsp->mutex);
+
+	return sst_module;
+}
+EXPORT_SYMBOL_GPL(sst_module_new);
+
+/* free firmware module and remove from available list */
+void sst_module_free(struct sst_module *sst_module)
+{
+	struct sst_dsp *dsp = sst_module->dsp;
+
+	mutex_lock(&dsp->mutex);
+	list_del(&sst_module->list);
+	mutex_unlock(&dsp->mutex);
+
+	kfree(sst_module);
+}
+EXPORT_SYMBOL_GPL(sst_module_free);
+
+static struct sst_mem_block *find_block(struct sst_dsp *dsp, int type,
+	u32 offset)
+{
+	struct sst_mem_block *block;
+
+	list_for_each_entry(block, &dsp->free_block_list, list) {
+		if (block->type == type && block->offset == offset)
+			return block;
+	}
+
+	return NULL;
+}
+
+static int block_alloc_contiguous(struct sst_module *module,
+	struct sst_module_data *data, u32 offset, int size)
+{
+	struct list_head tmp = LIST_HEAD_INIT(tmp);
+	struct sst_dsp *dsp = module->dsp;
+	struct sst_mem_block *block;
+
+	while (size > 0) {
+		block = find_block(dsp, data->type, offset);
+		if (!block) {
+			list_splice(&tmp, &dsp->free_block_list);
+			return -ENOMEM;
+		}
+
+		list_move_tail(&block->list, &tmp);
+		offset += block->size;
+		size -= block->size;
+	}
+
+	list_splice(&tmp, &dsp->used_block_list);
+	return 0;
+}
+
+/* allocate free DSP blocks for module data - callers hold locks */
+static int block_alloc(struct sst_module *module,
+	struct sst_module_data *data)
+{
+	struct sst_dsp *dsp = module->dsp;
+	struct sst_mem_block *block, *tmp;
+	int ret = 0;
+
+	if (data->size == 0)
+		return 0;
+
+	/* find first free whole blocks that can hold module */
+	list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
+
+		/* ignore blocks with wrong type */
+		if (block->type != data->type)
+			continue;
+
+		if (data->size > block->size)
+			continue;
+
+		data->offset = block->offset;
+		block->data_type = data->data_type;
+		block->bytes_used = data->size % block->size;
+		list_add(&block->module_list, &module->block_list);
+		list_move(&block->list, &dsp->used_block_list);
+		dev_dbg(dsp->dev, " *module %d added block %d:%d\n",
+			module->id, block->type, block->index);
+		return 0;
+	}
+
+	/* then find free multiple blocks that can hold module */
+	list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
+
+		/* ignore blocks with wrong type */
+		if (block->type != data->type)
+			continue;
+
+		/* do we span > 1 blocks */
+		if (data->size > block->size) {
+			ret = block_alloc_contiguous(module, data,
+				block->offset + block->size,
+				data->size - block->size);
+			if (ret == 0)
+				return ret;
+		}
+	}
+
+	/* not enough free block space */
+	return -ENOMEM;
+}
+
+/* remove module from memory - callers hold locks */
+static void block_module_remove(struct sst_module *module)
+{
+	struct sst_mem_block *block, *tmp;
+	struct sst_dsp *dsp = module->dsp;
+	int err;
+
+	/* disable each block  */
+	list_for_each_entry(block, &module->block_list, module_list) {
+
+		if (block->ops && block->ops->disable) {
+			err = block->ops->disable(block);
+			if (err < 0)
+				dev_err(dsp->dev,
+					"error: cant disable block %d:%d\n",
+					block->type, block->index);
+		}
+	}
+
+	/* mark each block as free */
+	list_for_each_entry_safe(block, tmp, &module->block_list, module_list) {
+		list_del(&block->module_list);
+		list_move(&block->list, &dsp->free_block_list);
+	}
+}
+
+/* prepare the memory block to receive data from host - callers hold locks */
+static int block_module_prepare(struct sst_module *module)
+{
+	struct sst_mem_block *block;
+	int ret = 0;
+
+	/* enable each block so that's it'e ready for module P/S data */
+	list_for_each_entry(block, &module->block_list, module_list) {
+
+		if (block->ops && block->ops->enable) {
+			ret = block->ops->enable(block);
+			if (ret < 0) {
+				dev_err(module->dsp->dev,
+					"error: cant disable block %d:%d\n",
+					block->type, block->index);
+				goto err;
+			}
+		}
+	}
+	return ret;
+
+err:
+	list_for_each_entry(block, &module->block_list, module_list) {
+		if (block->ops && block->ops->disable)
+			block->ops->disable(block);
+	}
+	return ret;
+}
+
+/* allocate memory blocks for static module addresses - callers hold locks */
+static int block_alloc_fixed(struct sst_module *module,
+	struct sst_module_data *data)
+{
+	struct sst_dsp *dsp = module->dsp;
+	struct sst_mem_block *block, *tmp;
+	u32 end = data->offset + data->size, block_end;
+	int err;
+
+	/* only IRAM/DRAM blocks are managed */
+	if (data->type != SST_MEM_IRAM && data->type != SST_MEM_DRAM)
+		return 0;
+
+	/* are blocks already attached to this module */
+	list_for_each_entry_safe(block, tmp, &module->block_list, module_list) {
+
+		/* force compacting mem blocks of the same data_type */
+		if (block->data_type != data->data_type)
+			continue;
+
+		block_end = block->offset + block->size;
+
+		/* find block that holds section */
+		if (data->offset >= block->offset && end < block_end)
+			return 0;
+
+		/* does block span more than 1 section */
+		if (data->offset >= block->offset && data->offset < block_end) {
+
+			err = block_alloc_contiguous(module, data,
+				block->offset + block->size,
+				data->size - block->size + data->offset - block->offset);
+			if (err < 0)
+				return -ENOMEM;
+
+			/* module already owns blocks */
+			return 0;
+		}
+	}
+
+	/* find first free blocks that can hold section in free list */
+	list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
+		block_end = block->offset + block->size;
+
+		/* find block that holds section */
+		if (data->offset >= block->offset && end < block_end) {
+
+			/* add block */
+			block->data_type = data->data_type;
+			list_move(&block->list, &dsp->used_block_list);
+			list_add(&block->module_list, &module->block_list);
+			return 0;
+		}
+
+		/* does block span more than 1 section */
+		if (data->offset >= block->offset && data->offset < block_end) {
+
+			err = block_alloc_contiguous(module, data,
+				block->offset + block->size,
+				data->size - block->size);
+			if (err < 0)
+				return -ENOMEM;
+
+			/* add block */
+			block->data_type = data->data_type;
+			list_move(&block->list, &dsp->used_block_list);
+			list_add(&block->module_list, &module->block_list);
+			return 0;
+		}
+
+	}
+
+	return -ENOMEM;
+}
+
+/* Load fixed module data into DSP memory blocks */
+int sst_module_insert_fixed_block(struct sst_module *module,
+	struct sst_module_data *data)
+{
+	struct sst_dsp *dsp = module->dsp;
+	int ret;
+
+	mutex_lock(&dsp->mutex);
+
+	/* alloc blocks that includes this section */
+	ret = block_alloc_fixed(module, data);
+	if (ret < 0) {
+		dev_err(dsp->dev,
+			"error: no free blocks for section at offset 0x%x size 0x%x\n",
+			data->offset, data->size);
+		mutex_unlock(&dsp->mutex);
+		return -ENOMEM;
+	}
+
+	/* prepare DSP blocks for module copy */
+	ret = block_module_prepare(module);
+	if (ret < 0) {
+		dev_err(dsp->dev, "error: fw module prepare failed\n");
+		goto err;
+	}
+
+	/* copy partial module data to blocks */
+	sst_memcpy32(dsp->addr.lpe + data->offset, data->data, data->size);
+
+	mutex_unlock(&dsp->mutex);
+	return ret;
+
+err:
+	block_module_remove(module);
+	mutex_unlock(&dsp->mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sst_module_insert_fixed_block);
+
+/* Unload entire module from DSP memory */
+int sst_block_module_remove(struct sst_module *module)
+{
+	struct sst_dsp *dsp = module->dsp;
+
+	mutex_lock(&dsp->mutex);
+	block_module_remove(module);
+	mutex_unlock(&dsp->mutex);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sst_block_module_remove);
+
+/* register a DSP memory block for use with FW based modules */
+struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
+	u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
+	void *private)
+{
+	struct sst_mem_block *block;
+
+	block = kzalloc(sizeof(*block), GFP_KERNEL);
+	if (block == NULL)
+		return NULL;
+
+	block->offset = offset;
+	block->size = size;
+	block->index = index;
+	block->type = type;
+	block->dsp = dsp;
+	block->private = private;
+	block->ops = ops;
+
+	mutex_lock(&dsp->mutex);
+	list_add(&block->list, &dsp->free_block_list);
+	mutex_unlock(&dsp->mutex);
+
+	return block;
+}
+EXPORT_SYMBOL_GPL(sst_mem_block_register);
+
+/* unregister all DSP memory blocks */
+void sst_mem_block_unregister_all(struct sst_dsp *dsp)
+{
+	struct sst_mem_block *block, *tmp;
+
+	mutex_lock(&dsp->mutex);
+
+	/* unregister used blocks */
+	list_for_each_entry_safe(block, tmp, &dsp->used_block_list, list) {
+		list_del(&block->list);
+		kfree(block);
+	}
+
+	/* unregister free blocks */
+	list_for_each_entry_safe(block, tmp, &dsp->free_block_list, list) {
+		list_del(&block->list);
+		kfree(block);
+	}
+
+	mutex_unlock(&dsp->mutex);
+}
+EXPORT_SYMBOL_GPL(sst_mem_block_unregister_all);
+
+/* allocate scratch buffer blocks */
+struct sst_module *sst_mem_block_alloc_scratch(struct sst_dsp *dsp)
+{
+	struct sst_module *sst_module, *scratch;
+	struct sst_mem_block *block, *tmp;
+	u32 block_size;
+	int ret = 0;
+
+	scratch = kzalloc(sizeof(struct sst_module), GFP_KERNEL);
+	if (scratch == NULL)
+		return NULL;
+
+	mutex_lock(&dsp->mutex);
+
+	/* calculate required scratch size */
+	list_for_each_entry(sst_module, &dsp->module_list, list) {
+		if (scratch->s.size > sst_module->s.size)
+			scratch->s.size = scratch->s.size;
+		else
+			scratch->s.size = sst_module->s.size;
+	}
+
+	dev_dbg(dsp->dev, "scratch buffer required is %d bytes\n",
+		scratch->s.size);
+
+	/* init scratch module */
+	scratch->dsp = dsp;
+	scratch->s.type = SST_MEM_DRAM;
+	scratch->s.data_type = SST_DATA_S;
+	INIT_LIST_HEAD(&scratch->block_list);
+
+	/* check free blocks before looking at used blocks for space */
+	if (!list_empty(&dsp->free_block_list))
+		block = list_first_entry(&dsp->free_block_list,
+			struct sst_mem_block, list);
+	else
+		block = list_first_entry(&dsp->used_block_list,
+			struct sst_mem_block, list);
+	block_size = block->size;
+
+	/* allocate blocks for module scratch buffers */
+	dev_dbg(dsp->dev, "allocating scratch blocks\n");
+	ret = block_alloc(scratch, &scratch->s);
+	if (ret < 0) {
+		dev_err(dsp->dev, "error: can't alloc scratch blocks\n");
+		goto err;
+	}
+
+	/* assign the same offset of scratch to each module */
+	list_for_each_entry(sst_module, &dsp->module_list, list)
+		sst_module->s.offset = scratch->s.offset;
+
+	mutex_unlock(&dsp->mutex);
+	return scratch;
+
+err:
+	list_for_each_entry_safe(block, tmp, &scratch->block_list, module_list)
+		list_del(&block->module_list);
+	mutex_unlock(&dsp->mutex);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_mem_block_alloc_scratch);
+
+/* free all scratch blocks */
+void sst_mem_block_free_scratch(struct sst_dsp *dsp,
+	struct sst_module *scratch)
+{
+	struct sst_mem_block *block, *tmp;
+
+	mutex_lock(&dsp->mutex);
+
+	list_for_each_entry_safe(block, tmp, &scratch->block_list, module_list)
+		list_del(&block->module_list);
+
+	mutex_unlock(&dsp->mutex);
+}
+EXPORT_SYMBOL_GPL(sst_mem_block_free_scratch);
+
+/* get a module from it's unique ID */
+struct sst_module *sst_module_get_from_id(struct sst_dsp *dsp, u32 id)
+{
+	struct sst_module *module;
+
+	mutex_lock(&dsp->mutex);
+
+	list_for_each_entry(module, &dsp->module_list, list) {
+		if (module->id == id) {
+			mutex_unlock(&dsp->mutex);
+			return module;
+		}
+	}
+
+	mutex_unlock(&dsp->mutex);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_module_get_from_id);

sound/soc/intel/sst-haswell-dsp.c

+/*
+ * Intel Haswell SST DSP driver
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/sched.h>
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/firmware.h>
+#include <linux/pm_runtime.h>
+
+#include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
+
+#include "sst-dsp.h"
+#include "sst-dsp-priv.h"
+#include "sst-haswell-ipc.h"
+
+#include <trace/events/hswadsp.h>
+
+#define SST_HSW_FW_SIGNATURE_SIZE	4
+#define SST_HSW_FW_SIGN			"$SST"
+#define SST_HSW_FW_LIB_SIGN		"$LIB"
+
+#define SST_WPT_SHIM_OFFSET	0xFB000
+#define SST_LP_SHIM_OFFSET	0xE7000
+#define SST_WPT_IRAM_OFFSET	0xA0000
+#define SST_LP_IRAM_OFFSET	0x80000
+
+#define SST_SHIM_PM_REG		0x84
+
+#define SST_HSW_IRAM	1
+#define SST_HSW_DRAM	2
+#define SST_HSW_REGS	3
+
+struct dma_block_info {
+	__le32 type;		/* IRAM/DRAM */
+	__le32 size;		/* Bytes */
+	__le32 ram_offset;	/* Offset in I/DRAM */
+	__le32 rsvd;		/* Reserved field */
+} __attribute__((packed));
+
+struct fw_module_info {
+	__le32 persistent_size;
+	__le32 scratch_size;
+} __attribute__((packed));
+
+struct fw_header {
+	unsigned char signature[SST_HSW_FW_SIGNATURE_SIZE]; /* FW signature */
+	__le32 file_size;		/* size of fw minus this header */
+	__le32 modules;		/*  # of modules */
+	__le32 file_format;	/* version of header format */
+	__le32 reserved[4];
+} __attribute__((packed));
+
+struct fw_module_header {
+	unsigned char signature[SST_HSW_FW_SIGNATURE_SIZE]; /* module signature */
+	__le32 mod_size;	/* size of module */
+	__le32 blocks;	/* # of blocks */
+	__le16 padding;
+	__le16 type;	/* codec type, pp lib */
+	__le32 entry_point;
+	struct fw_module_info info;
+} __attribute__((packed));
+
+static void hsw_free(struct sst_dsp *sst);
+
+static int hsw_parse_module(struct sst_dsp *dsp, struct sst_fw *fw,
+	struct fw_module_header *module)
+{
+	struct dma_block_info *block;
+	struct sst_module *mod;
+	struct sst_module_data block_data;
+	struct sst_module_template template;
+	int count;
+	void __iomem *ram;
+
+	/* TODO: allowed module types need to be configurable */
+	if (module->type != SST_HSW_MODULE_BASE_FW
+		&& module->type != SST_HSW_MODULE_PCM_SYSTEM
+		&& module->type != SST_HSW_MODULE_PCM
+		&& module->type != SST_HSW_MODULE_PCM_REFERENCE
+		&& module->type != SST_HSW_MODULE_PCM_CAPTURE
+		&& module->type != SST_HSW_MODULE_LPAL)
+		return 0;
+
+	dev_dbg(dsp->dev, "new module sign 0x%s size 0x%x blocks 0x%x type 0x%x\n",
+		module->signature, module->mod_size,
+		module->blocks, module->type);
+	dev_dbg(dsp->dev, " entrypoint 0x%x\n", module->entry_point);
+	dev_dbg(dsp->dev, " persistent 0x%x scratch 0x%x\n",
+		module->info.persistent_size, module->info.scratch_size);
+
+	memset(&template, 0, sizeof(template));
+	template.id = module->type;
+	template.entry = module->entry_point;
+	template.p.size = module->info.persistent_size;
+	template.p.type = SST_MEM_DRAM;
+	template.p.data_type = SST_DATA_P;
+	template.s.size = module->info.scratch_size;
+	template.s.type = SST_MEM_DRAM;
+	template.s.data_type = SST_DATA_S;
+
+	mod = sst_module_new(fw, &template, NULL);
+	if (mod == NULL)
+		return -ENOMEM;
+
+	block = (void *)module + sizeof(*module);
+
+	for (count = 0; count < module->blocks; count++) {
+
+		if (block->size <= 0) {
+			dev_err(dsp->dev,
+				"error: block %d size invalid\n", count);
+			sst_module_free(mod);
+			return -EINVAL;
+		}
+
+		switch (block->type) {
+		case SST_HSW_IRAM:
+			ram = dsp->addr.lpe;
+			block_data.offset =
+				block->ram_offset + dsp->addr.iram_offset;
+			block_data.type = SST_MEM_IRAM;
+			break;
+		case SST_HSW_DRAM:
+			ram = dsp->addr.lpe;
+			block_data.offset = block->ram_offset;
+			block_data.type = SST_MEM_DRAM;
+			break;
+		default:
+			dev_err(dsp->dev, "error: bad type 0x%x for block 0x%x\n",
+				block->type, count);
+			sst_module_free(mod);
+			return -EINVAL;
+		}
+
+		block_data.size = block->size;
+		block_data.data_type = SST_DATA_M;
+		block_data.data = (void *)block + sizeof(*block);
+		block_data.data_offset = block_data.data - fw->dma_buf;
+
+		dev_dbg(dsp->dev, "copy firmware block %d type 0x%x "
+			"size 0x%x ==> ram %p offset 0x%x\n",
+			count, block->type, block->size, ram,
+			block->ram_offset);
+
+		sst_module_insert_fixed_block(mod, &block_data);
+
+		block = (void *)block + sizeof(*block) + block->size;
+	}
+	return 0;
+}
+
+static int hsw_parse_fw_image(struct sst_fw *sst_fw)
+{
+	struct fw_header *header;
+	struct sst_module *scratch;
+	struct fw_module_header *module;
+	struct sst_dsp *dsp = sst_fw->dsp;
+	struct sst_hsw *hsw = sst_fw->private;
+	int ret, count;
+
+	/* Read the header information from the data pointer */
+	header = (struct fw_header *)sst_fw->dma_buf;
+
+	/* verify FW */
+	if ((strncmp(header->signature, SST_HSW_FW_SIGN, 4) != 0) ||
+		(sst_fw->size != header->file_size + sizeof(*header))) {
+		dev_err(dsp->dev, "error: invalid fw sign/filesize mismatch\n");
+		return -EINVAL;
+	}
+
+	dev_dbg(dsp->dev, "header size=0x%x modules=0x%x fmt=0x%x size=%zu\n",
+		header->file_size, header->modules,
+		header->file_format, sizeof(*header));
+
+	/* parse each module */
+	module = (void *)sst_fw->dma_buf + sizeof(*header);
+	for (count = 0; count < header->modules; count++) {
+
+		/* module */
+		ret = hsw_parse_module(dsp, sst_fw, module);
+		if (ret < 0) {
+			dev_err(dsp->dev, "error: invalid module %d\n", count);
+			return ret;
+		}
+		module = (void *)module + sizeof(*module) + module->mod_size;
+	}
+
+	/* allocate persistent/scratch mem regions */
+	scratch = sst_mem_block_alloc_scratch(dsp);
+	if (scratch == NULL)
+		return -ENOMEM;
+
+	sst_hsw_set_scratch_module(hsw, scratch);
+
+	return 0;
+}
+
+static irqreturn_t hsw_irq(int irq, void *context)
+{
+	struct sst_dsp *sst = (struct sst_dsp *) context;
+	u32 isr;
+	int ret = IRQ_NONE;
+
+	spin_lock(&sst->spinlock);
+
+	/* Interrupt arrived, check src */
+	isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);
+	if (isr & SST_ISRX_DONE) {
+		trace_sst_irq_done(isr,
+			sst_dsp_shim_read_unlocked(sst, SST_IMRX));
+
+		/* Mask Done interrupt before return */
+		sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
+			SST_IMRX_DONE, SST_IMRX_DONE);
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	if (isr & SST_ISRX_BUSY) {
+		trace_sst_irq_busy(isr,
+			sst_dsp_shim_read_unlocked(sst, SST_IMRX));
+
+		/* Mask Busy interrupt before return */
+		sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
+			SST_IMRX_BUSY, SST_IMRX_BUSY);
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	spin_unlock(&sst->spinlock);
+	return ret;
+}
+
+static void hsw_boot(struct sst_dsp *sst)
+{
+	/* select SSP1 19.2MHz base clock, SSP clock 0, turn off Low Power Clock */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_CSR,
+		SST_CSR_S1IOCS | SST_CSR_SBCS1 | SST_CSR_LPCS, 0x0);
+
+	/* stall DSP core, set clk to 192/96Mhz */
+	sst_dsp_shim_update_bits_unlocked(sst,
+		SST_CSR, SST_CSR_STALL | SST_CSR_DCS_MASK,
+		SST_CSR_STALL | SST_CSR_DCS(4));
+
+	/* Set 24MHz MCLK, prevent local clock gating, enable SSP0 clock */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_CLKCTL,
+		SST_CLKCTL_MASK | SST_CLKCTL_DCPLCG | SST_CLKCTL_SCOE0,
+		SST_CLKCTL_MASK | SST_CLKCTL_DCPLCG | SST_CLKCTL_SCOE0);
+
+	/* disable DMA finish function for SSP0 & SSP1 */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_CSR2, SST_CSR2_SDFD_SSP1,
+		SST_CSR2_SDFD_SSP1);
+
+	/* enable DMA engine 0,1 all channels to access host memory */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_HDMC,
+		SST_HDMC_HDDA1(0xff)  | SST_HDMC_HDDA0(0xff),
+		SST_HDMC_HDDA1(0xff) | SST_HDMC_HDDA0(0xff));
+
+	/* disable all clock gating */
+	writel(0x0, sst->addr.pci_cfg + SST_VDRTCTL2);
+
+	/* set DSP to RUN */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_CSR, SST_CSR_STALL, 0x0);
+}
+
+static void hsw_reset(struct sst_dsp *sst)
+{
+	/* put DSP into reset and stall */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_CSR,
+		SST_CSR_RST | SST_CSR_STALL, SST_CSR_RST | SST_CSR_STALL);
+
+	/* keep in reset for 10ms */
+	mdelay(10);
+
+	/* take DSP out of reset and keep stalled for FW loading */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_CSR,
+		SST_CSR_RST | SST_CSR_STALL, SST_CSR_STALL);
+}
+
+struct sst_adsp_memregion {
+	u32 start;
+	u32 end;
+	int blocks;
+	enum sst_mem_type type;
+};
+
+/* lynx point ADSP mem regions */
+static const struct sst_adsp_memregion lp_region[] = {
+	{0x00000, 0x40000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */
+	{0x40000, 0x80000, 8, SST_MEM_DRAM}, /* D-SRAM1 - 8 * 32kB */
+	{0x80000, 0xE0000, 12, SST_MEM_IRAM}, /* I-SRAM - 12 * 32kB */
+};
+
+/* wild cat point ADSP mem regions */
+static const struct sst_adsp_memregion wpt_region[] = {
+	{0x00000, 0x40000, 8, SST_MEM_DRAM}, /* D-SRAM0 - 8 * 32kB */
+	{0x40000, 0x80000, 8, SST_MEM_DRAM}, /* D-SRAM1 - 8 * 32kB */
+	{0x80000, 0xA0000, 4, SST_MEM_DRAM}, /* D-SRAM2 - 4 * 32kB */
+	{0xA0000, 0xF0000, 10, SST_MEM_IRAM}, /* I-SRAM - 10 * 32kB */
+};
+
+static int hsw_acpi_resource_map(struct sst_dsp *sst, struct sst_pdata *pdata)
+{
+	/* ADSP DRAM & IRAM */
+	sst->addr.lpe_base = pdata->lpe_base;
+	sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size);
+	if (!sst->addr.lpe)
+		return -ENODEV;
+
+	/* ADSP PCI MMIO config space */
+	sst->addr.pci_cfg = ioremap(pdata->pcicfg_base, pdata->pcicfg_size);
+	if (!sst->addr.pci_cfg) {
+		iounmap(sst->addr.lpe);
+		return -ENODEV;
+	}
+
+	/* SST Shim */
+	sst->addr.shim = sst->addr.lpe + sst->addr.shim_offset;
+	return 0;
+}
+
+static u32 hsw_block_get_bit(struct sst_mem_block *block)
+{
+	u32 bit = 0, shift = 0;
+
+	switch (block->type) {
+	case SST_MEM_DRAM:
+		shift = 16;
+		break;
+	case SST_MEM_IRAM:
+		shift = 6;
+		break;
+	default:
+		return 0;
+	}
+
+	bit = 1 << (block->index + shift);
+
+	return bit;
+}
+
+/* enable 32kB memory block - locks held by caller */
+static int hsw_block_enable(struct sst_mem_block *block)
+{
+	struct sst_dsp *sst = block->dsp;
+	u32 bit, val;
+
+	if (block->users++ > 0)
+		return 0;
+
+	dev_dbg(block->dsp->dev, " enabled block %d:%d at offset 0x%x\n",
+		block->type, block->index, block->offset);
+
+	val = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
+	bit = hsw_block_get_bit(block);
+	writel(val & ~bit, sst->addr.pci_cfg + SST_VDRTCTL0);
+
+	/* wait 18 DSP clock ticks */
+	udelay(10);
+
+	return 0;
+}
+
+/* disable 32kB memory block - locks held by caller */
+static int hsw_block_disable(struct sst_mem_block *block)
+{
+	struct sst_dsp *sst = block->dsp;
+	u32 bit, val;
+
+	if (--block->users > 0)
+		return 0;
+
+	dev_dbg(block->dsp->dev, " disabled block %d:%d at offset 0x%x\n",
+		block->type, block->index, block->offset);
+
+	val = readl(sst->addr.pci_cfg + SST_VDRTCTL0);
+	bit = hsw_block_get_bit(block);
+	writel(val | bit, sst->addr.pci_cfg + SST_VDRTCTL0);
+
+	return 0;
+}
+
+static struct sst_block_ops sst_hsw_ops = {
+	.enable = hsw_block_enable,
+	.disable = hsw_block_disable,
+};
+
+static int hsw_enable_shim(struct sst_dsp *sst)
+{
+	int tries = 10;
+	u32 reg;
+
+	/* enable shim */
+	reg = readl(sst->addr.pci_cfg + SST_SHIM_PM_REG);
+	writel(reg & ~0x3, sst->addr.pci_cfg + SST_SHIM_PM_REG);
+
+	/* check that ADSP shim is enabled */
+	while (tries--) {
+		reg = sst_dsp_shim_read_unlocked(sst, SST_CSR);
+		if (reg != 0xffffffff)
+			return 0;
+
+		msleep(1);
+	}
+
+	return -ENODEV;
+}
+
+static int hsw_init(struct sst_dsp *sst, struct sst_pdata *pdata)
+{
+	const struct sst_adsp_memregion *region;
+	struct device *dev;
+	int ret = -ENODEV, i, j, region_count;
+	u32 offset, size;
+
+	dev = sst->dev;
+
+	switch (sst->id) {
+	case SST_DEV_ID_LYNX_POINT:
+		region = lp_region;
+		region_count = ARRAY_SIZE(lp_region);
+		sst->addr.iram_offset = SST_LP_IRAM_OFFSET;
+		sst->addr.shim_offset = SST_LP_SHIM_OFFSET;
+		break;
+	case SST_DEV_ID_WILDCAT_POINT:
+		region = wpt_region;
+		region_count = ARRAY_SIZE(wpt_region);
+		sst->addr.iram_offset = SST_WPT_IRAM_OFFSET;
+		sst->addr.shim_offset = SST_WPT_SHIM_OFFSET;
+		break;
+	default:
+		dev_err(dev, "error: failed to get mem resources\n");
+		return ret;
+	}
+
+	ret = hsw_acpi_resource_map(sst, pdata);
+	if (ret < 0) {
+		dev_err(dev, "error: failed to map resources\n");
+		return ret;
+	}
+
+	/* enable the DSP SHIM */
+	ret = hsw_enable_shim(sst);
+	if (ret < 0) {
+		dev_err(dev, "error: failed to set DSP D0 and reset SHIM\n");
+		return ret;
+	}
+
+	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	/* Enable Interrupt from both sides */
+	sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX, 0x3, 0x0);
+	sst_dsp_shim_update_bits_unlocked(sst, SST_IMRD,
+		(0x3 | 0x1 << 16 | 0x3 << 21), 0x0);
+
+	/* register DSP memory blocks - ideally we should get this from ACPI */
+	for (i = 0; i < region_count; i++) {
+		offset = region[i].start;
+		size = (region[i].end - region[i].start) / region[i].blocks;
+
+		/* register individual memory blocks */
+		for (j = 0; j < region[i].blocks; j++) {
+			sst_mem_block_register(sst, offset, size,
+				region[i].type, &sst_hsw_ops, j, sst);
+			offset += size;
+		}
+	}
+
+	/* set default power gating mask */
+	writel(0x0, sst->addr.pci_cfg + SST_VDRTCTL0);
+
+	return 0;
+}
+
+static void hsw_free(struct sst_dsp *sst)
+{
+	sst_mem_block_unregister_all(sst);
+	iounmap(sst->addr.lpe);
+	iounmap(sst->addr.pci_cfg);
+}
+
+struct sst_ops haswell_ops = {
+	.reset = hsw_reset,
+	.boot = hsw_boot,
+	.write = sst_shim32_write,
+	.read = sst_shim32_read,
+	.write64 = sst_shim32_write64,
+	.read64 = sst_shim32_read64,
+	.ram_read = sst_memcpy_fromio_32,
+	.ram_write = sst_memcpy_toio_32,
+	.irq_handler = hsw_irq,
+	.init = hsw_init,
+	.free = hsw_free,
+	.parse_fw = hsw_parse_fw_image,
+};

sound/soc/intel/sst-haswell-ipc.c

+/*
+ *  Intel SST Haswell/Broadwell IPC Support
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+#include <linux/kthread.h>
+#include <linux/firmware.h>
+#include <linux/dma-mapping.h>
+#include <linux/debugfs.h>
+
+#include "sst-haswell-ipc.h"
+#include "sst-dsp.h"
+#include "sst-dsp-priv.h"
+
+/* Global Message - Generic */
+#define IPC_GLB_TYPE_SHIFT	24
+#define IPC_GLB_TYPE_MASK	(0x1f << IPC_GLB_TYPE_SHIFT)
+#define IPC_GLB_TYPE(x)		(x << IPC_GLB_TYPE_SHIFT)
+
+/* Global Message - Reply */
+#define IPC_GLB_REPLY_SHIFT	0
+#define IPC_GLB_REPLY_MASK	(0x1f << IPC_GLB_REPLY_SHIFT)
+#define IPC_GLB_REPLY_TYPE(x)	(x << IPC_GLB_REPLY_TYPE_SHIFT)
+
+/* Stream Message - Generic */
+#define IPC_STR_TYPE_SHIFT	20
+#define IPC_STR_TYPE_MASK	(0xf << IPC_STR_TYPE_SHIFT)
+#define IPC_STR_TYPE(x)		(x << IPC_STR_TYPE_SHIFT)
+#define IPC_STR_ID_SHIFT	16
+#define IPC_STR_ID_MASK		(0xf << IPC_STR_ID_SHIFT)
+#define IPC_STR_ID(x)		(x << IPC_STR_ID_SHIFT)
+
+/* Stream Message - Reply */
+#define IPC_STR_REPLY_SHIFT	0
+#define IPC_STR_REPLY_MASK	(0x1f << IPC_STR_REPLY_SHIFT)
+
+/* Stream Stage Message - Generic */
+#define IPC_STG_TYPE_SHIFT	12
+#define IPC_STG_TYPE_MASK	(0xf << IPC_STG_TYPE_SHIFT)
+#define IPC_STG_TYPE(x)		(x << IPC_STG_TYPE_SHIFT)
+#define IPC_STG_ID_SHIFT	10
+#define IPC_STG_ID_MASK		(0x3 << IPC_STG_ID_SHIFT)
+#define IPC_STG_ID(x)		(x << IPC_STG_ID_SHIFT)
+
+/* Stream Stage Message - Reply */
+#define IPC_STG_REPLY_SHIFT	0
+#define IPC_STG_REPLY_MASK	(0x1f << IPC_STG_REPLY_SHIFT)
+
+/* Debug Log Message - Generic */
+#define IPC_LOG_OP_SHIFT	20
+#define IPC_LOG_OP_MASK		(0xf << IPC_LOG_OP_SHIFT)
+#define IPC_LOG_OP_TYPE(x)	(x << IPC_LOG_OP_SHIFT)
+#define IPC_LOG_ID_SHIFT	16
+#define IPC_LOG_ID_MASK		(0xf << IPC_LOG_ID_SHIFT)
+#define IPC_LOG_ID(x)		(x << IPC_LOG_ID_SHIFT)
+
+/* IPC message timeout (msecs) */
+#define IPC_TIMEOUT_MSECS	300
+#define IPC_BOOT_MSECS		200
+#define IPC_MSG_WAIT		0
+#define IPC_MSG_NOWAIT		1
+
+/* Firmware Ready Message */
+#define IPC_FW_READY		(0x1 << 29)
+#define IPC_STATUS_MASK		(0x3 << 30)
+
+#define IPC_EMPTY_LIST_SIZE	8
+#define IPC_MAX_STREAMS		4
+
+/* Mailbox */
+#define IPC_MAX_MAILBOX_BYTES	256
+
+/* Global Message - Types and Replies */
+enum ipc_glb_type {
+	IPC_GLB_GET_FW_VERSION = 0,		/* Retrieves firmware version */
+	IPC_GLB_PERFORMANCE_MONITOR = 1,	/* Performance monitoring actions */
+	IPC_GLB_ALLOCATE_STREAM = 3,		/* Request to allocate new stream */
+	IPC_GLB_FREE_STREAM = 4,		/* Request to free stream */
+	IPC_GLB_GET_FW_CAPABILITIES = 5,	/* Retrieves firmware capabilities */
+	IPC_GLB_STREAM_MESSAGE = 6,		/* Message directed to stream or its stages */
+	/* Request to store firmware context during D0->D3 transition */
+	IPC_GLB_REQUEST_DUMP = 7,
+	/* Request to restore firmware context during D3->D0 transition */
+	IPC_GLB_RESTORE_CONTEXT = 8,
+	IPC_GLB_GET_DEVICE_FORMATS = 9,		/* Set device format */
+	IPC_GLB_SET_DEVICE_FORMATS = 10,	/* Get device format */
+	IPC_GLB_SHORT_REPLY = 11,
+	IPC_GLB_ENTER_DX_STATE = 12,
+	IPC_GLB_GET_MIXER_STREAM_INFO = 13,	/* Request mixer stream params */
+	IPC_GLB_DEBUG_LOG_MESSAGE = 14,		/* Message to or from the debug logger. */
+	IPC_GLB_REQUEST_TRANSFER = 16, 		/* < Request Transfer for host */
+	IPC_GLB_MAX_IPC_MESSAGE_TYPE = 17,	/* Maximum message number */
+};
+
+enum ipc_glb_reply {
+	IPC_GLB_REPLY_SUCCESS = 0,		/* The operation was successful. */
+	IPC_GLB_REPLY_ERROR_INVALID_PARAM = 1,	/* Invalid parameter was passed. */
+	IPC_GLB_REPLY_UNKNOWN_MESSAGE_TYPE = 2,	/* Uknown message type was resceived. */
+	IPC_GLB_REPLY_OUT_OF_RESOURCES = 3,	/* No resources to satisfy the request. */
+	IPC_GLB_REPLY_BUSY = 4,			/* The system or resource is busy. */
+	IPC_GLB_REPLY_PENDING = 5,		/* The action was scheduled for processing.  */
+	IPC_GLB_REPLY_FAILURE = 6,		/* Critical error happened. */
+	IPC_GLB_REPLY_INVALID_REQUEST = 7,	/* Request can not be completed. */
+	IPC_GLB_REPLY_STAGE_UNINITIALIZED = 8,	/* Processing stage was uninitialized. */
+	IPC_GLB_REPLY_NOT_FOUND = 9,		/* Required resource can not be found. */
+	IPC_GLB_REPLY_SOURCE_NOT_STARTED = 10,	/* Source was not started. */
+};
+
+/* Stream Message - Types */
+enum ipc_str_operation {
+	IPC_STR_RESET = 0,
+	IPC_STR_PAUSE = 1,
+	IPC_STR_RESUME = 2,
+	IPC_STR_STAGE_MESSAGE = 3,
+	IPC_STR_NOTIFICATION = 4,
+	IPC_STR_MAX_MESSAGE
+};
+
+/* Stream Stage Message Types */
+enum ipc_stg_operation {
+	IPC_STG_GET_VOLUME = 0,
+	IPC_STG_SET_VOLUME,
+	IPC_STG_SET_WRITE_POSITION,
+	IPC_STG_SET_FX_ENABLE,
+	IPC_STG_SET_FX_DISABLE,
+	IPC_STG_SET_FX_GET_PARAM,
+	IPC_STG_SET_FX_SET_PARAM,
+	IPC_STG_SET_FX_GET_INFO,
+	IPC_STG_MUTE_LOOPBACK,
+	IPC_STG_MAX_MESSAGE
+};
+
+/* Stream Stage Message Types For Notification*/
+enum ipc_stg_operation_notify {
+	IPC_POSITION_CHANGED = 0,
+	IPC_STG_GLITCH,
+	IPC_STG_MAX_NOTIFY
+};
+
+enum ipc_glitch_type {
+	IPC_GLITCH_UNDERRUN = 1,
+	IPC_GLITCH_DECODER_ERROR,
+	IPC_GLITCH_DOUBLED_WRITE_POS,
+	IPC_GLITCH_MAX
+};
+
+/* Debug Control */
+enum ipc_debug_operation {
+	IPC_DEBUG_ENABLE_LOG = 0,
+	IPC_DEBUG_DISABLE_LOG = 1,
+	IPC_DEBUG_REQUEST_LOG_DUMP = 2,
+	IPC_DEBUG_NOTIFY_LOG_DUMP = 3,
+	IPC_DEBUG_MAX_DEBUG_LOG
+};
+
+/* Firmware Ready */
+struct sst_hsw_ipc_fw_ready {
+	u32 inbox_offset;
+	u32 outbox_offset;
+	u32 inbox_size;
+	u32 outbox_size;
+	u32 fw_info_size;
+	u8 fw_info[1];
+} __attribute__((packed));
+
+struct ipc_message {
+	struct list_head list;
+	u32 header;
+
+	/* direction wrt host CPU */
+	char tx_data[IPC_MAX_MAILBOX_BYTES];
+	size_t tx_size;
+	char rx_data[IPC_MAX_MAILBOX_BYTES];
+	size_t rx_size;
+
+	wait_queue_head_t waitq;
+	bool pending;
+	bool complete;
+	bool wait;
+	int errno;
+};
+
+struct sst_hsw_stream;
+struct sst_hsw;
+
+/* Stream infomation */
+struct sst_hsw_stream {
+	/* configuration */
+	struct sst_hsw_ipc_stream_alloc_req request;
+	struct sst_hsw_ipc_stream_alloc_reply reply;
+	struct sst_hsw_ipc_stream_free_req free_req;
+
+	/* Mixer info */
+	u32 mute_volume[SST_HSW_NO_CHANNELS];
+	u32 mute[SST_HSW_NO_CHANNELS];
+
+	/* runtime info */
+	struct sst_hsw *hsw;
+	int host_id;
+	bool commited;
+	bool running;
+
+	/* Notification work */
+	struct work_struct notify_work;
+	u32 header;
+
+	/* Position info from DSP */
+	struct sst_hsw_ipc_stream_set_position wpos;
+	struct sst_hsw_ipc_stream_get_position rpos;
+	struct sst_hsw_ipc_stream_glitch_position glitch;
+
+	/* Volume info */
+	struct sst_hsw_ipc_volume_req vol_req;
+
+	/* driver callback */
+	u32 (*notify_position)(struct sst_hsw_stream *stream, void *data);
+	void *pdata;
+
+	struct list_head node;
+};
+
+/* FW log ring information */
+struct sst_hsw_log_stream {
+	dma_addr_t dma_addr;
+	unsigned char *dma_area;
+	unsigned char *ring_descr;
+	int pages;
+	int size;
+
+	/* Notification work */
+	struct work_struct notify_work;
+	wait_queue_head_t readers_wait_q;
+	struct mutex rw_mutex;
+
+	u32 last_pos;
+	u32 curr_pos;
+	u32 reader_pos;
+
+	/* fw log config */
+	u32 config[SST_HSW_FW_LOG_CONFIG_DWORDS];
+
+	struct sst_hsw *hsw;
+};
+
+/* SST Haswell IPC data */
+struct sst_hsw {
+	struct device *dev;
+	struct sst_dsp *dsp;
+	struct platform_device *pdev_pcm;
+
+	/* FW config */
+	struct sst_hsw_ipc_fw_ready fw_ready;
+	struct sst_hsw_ipc_fw_version version;
+	struct sst_module *scratch;
+	bool fw_done;
+
+	/* stream */
+	struct list_head stream_list;
+
+	/* global mixer */
+	struct sst_hsw_ipc_stream_info_reply mixer_info;
+	enum sst_hsw_volume_curve curve_type;
+	u32 curve_duration;
+	u32 mute[SST_HSW_NO_CHANNELS];
+	u32 mute_volume[SST_HSW_NO_CHANNELS];
+
+	/* DX */
+	struct sst_hsw_ipc_dx_reply dx;
+
+	/* boot */
+	wait_queue_head_t boot_wait;
+	bool boot_complete;
+	bool shutdown;
+
+	/* IPC messaging */
+	struct list_head tx_list;
+	struct list_head rx_list;
+	struct list_head empty_list;
+	wait_queue_head_t wait_txq;
+	struct task_struct *tx_thread;
+	struct kthread_worker kworker;
+	struct kthread_work kwork;
+	bool pending;
+	struct ipc_message *msg;
+
+	/* FW log stream */
+	struct sst_hsw_log_stream log_stream;
+};
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/hswadsp.h>
+
+static inline u32 msg_get_global_type(u32 msg)
+{
+	return (msg & IPC_GLB_TYPE_MASK) >> IPC_GLB_TYPE_SHIFT;
+}
+
+static inline u32 msg_get_global_reply(u32 msg)
+{
+	return (msg & IPC_GLB_REPLY_MASK) >> IPC_GLB_REPLY_SHIFT;
+}
+
+static inline u32 msg_get_stream_type(u32 msg)
+{
+	return (msg & IPC_STR_TYPE_MASK) >>  IPC_STR_TYPE_SHIFT;
+}
+
+static inline u32 msg_get_stage_type(u32 msg)
+{
+	return (msg & IPC_STG_TYPE_MASK) >>  IPC_STG_TYPE_SHIFT;
+}
+
+static inline u32 msg_set_stage_type(u32 msg, u32 type)
+{
+	return (msg & ~IPC_STG_TYPE_MASK) +
+		(type << IPC_STG_TYPE_SHIFT);
+}
+
+static inline u32 msg_get_stream_id(u32 msg)
+{
+	return (msg & IPC_STR_ID_MASK) >>  IPC_STR_ID_SHIFT;
+}
+
+static inline u32 msg_get_notify_reason(u32 msg)
+{
+	return (msg & IPC_STG_TYPE_MASK) >> IPC_STG_TYPE_SHIFT;
+}
+
+u32 create_channel_map(enum sst_hsw_channel_config config)
+{
+	switch (config) {
+	case SST_HSW_CHANNEL_CONFIG_MONO:
+		return (0xFFFFFFF0 | SST_HSW_CHANNEL_CENTER);
+	case SST_HSW_CHANNEL_CONFIG_STEREO:
+		return (0xFFFFFF00 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_RIGHT << 4));
+	case SST_HSW_CHANNEL_CONFIG_2_POINT_1:
+		return (0xFFFFF000 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_RIGHT << 4)
+			| (SST_HSW_CHANNEL_LFE << 8 ));
+	case SST_HSW_CHANNEL_CONFIG_3_POINT_0:
+		return (0xFFFFF000 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_CENTER << 4)
+			| (SST_HSW_CHANNEL_RIGHT << 8));
+	case SST_HSW_CHANNEL_CONFIG_3_POINT_1:
+		return (0xFFFF0000 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_CENTER << 4)
+			| (SST_HSW_CHANNEL_RIGHT << 8)
+			| (SST_HSW_CHANNEL_LFE << 12));
+	case SST_HSW_CHANNEL_CONFIG_QUATRO:
+		return (0xFFFF0000 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_RIGHT << 4)
+			| (SST_HSW_CHANNEL_LEFT_SURROUND << 8)
+			| (SST_HSW_CHANNEL_RIGHT_SURROUND << 12));
+	case SST_HSW_CHANNEL_CONFIG_4_POINT_0:
+		return (0xFFFF0000 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_CENTER << 4)
+			| (SST_HSW_CHANNEL_RIGHT << 8)
+			| (SST_HSW_CHANNEL_CENTER_SURROUND << 12));
+	case SST_HSW_CHANNEL_CONFIG_5_POINT_0:
+		return (0xFFF00000 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_CENTER << 4)
+			| (SST_HSW_CHANNEL_RIGHT << 8)
+			| (SST_HSW_CHANNEL_LEFT_SURROUND << 12)
+			| (SST_HSW_CHANNEL_RIGHT_SURROUND << 16));
+	case SST_HSW_CHANNEL_CONFIG_5_POINT_1:
+		return (0xFF000000 | SST_HSW_CHANNEL_CENTER
+			| (SST_HSW_CHANNEL_LEFT << 4)
+			| (SST_HSW_CHANNEL_RIGHT << 8)
+			| (SST_HSW_CHANNEL_LEFT_SURROUND << 12)
+			| (SST_HSW_CHANNEL_RIGHT_SURROUND << 16)
+			| (SST_HSW_CHANNEL_LFE << 20));
+	case SST_HSW_CHANNEL_CONFIG_DUAL_MONO:
+		return (0xFFFFFF00 | SST_HSW_CHANNEL_LEFT
+			| (SST_HSW_CHANNEL_LEFT << 4));
+	default:
+		return 0xFFFFFFFF;
+	}
+}
+
+static struct sst_hsw_stream *get_stream_by_id(struct sst_hsw *hsw,
+	int stream_id)
+{
+	struct sst_hsw_stream *stream;
+
+	list_for_each_entry(stream, &hsw->stream_list, node) {
+		if (stream->reply.stream_hw_id == stream_id)
+			return stream;
+	}
+
+	return NULL;
+}
+
+static void ipc_shim_dbg(struct sst_hsw *hsw, const char *text)
+{
+	struct sst_dsp *sst = hsw->dsp;
+	u32 isr, ipcd, imrx, ipcx;
+
+	ipcx = sst_dsp_shim_read_unlocked(sst, SST_IPCX);
+	isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);
+	ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
+	imrx = sst_dsp_shim_read_unlocked(sst, SST_IMRX);
+
+	dev_err(hsw->dev, "ipc: --%s-- ipcx 0x%8.8x isr 0x%8.8x ipcd 0x%8.8x imrx 0x%8.8x\n",
+		text, ipcx, isr, ipcd, imrx);
+}
+
+/* locks held by caller */
+static struct ipc_message *msg_get_empty(struct sst_hsw *hsw)
+{
+	struct ipc_message *msg = NULL;
+
+	if (!list_empty(&hsw->empty_list)) {
+		msg = list_first_entry(&hsw->empty_list, struct ipc_message,
+			list);
+		list_del(&msg->list);
+	}
+
+	return msg;
+}
+
+static void ipc_tx_msgs(struct kthread_work *work)
+{
+	struct sst_hsw *hsw =
+		container_of(work, struct sst_hsw, kwork);
+	struct ipc_message *msg;
+	unsigned long flags;
+	u32 ipcx;
+
+	spin_lock_irqsave(&hsw->dsp->spinlock, flags);
+
+	if (list_empty(&hsw->tx_list) || hsw->pending) {
+		spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
+		return;
+	}
+
+	/* if the DSP is busy we will TX messages after IRQ */
+	ipcx = sst_dsp_shim_read_unlocked(hsw->dsp, SST_IPCX);
+	if (ipcx & SST_IPCX_BUSY) {
+		spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
+		return;
+	}
+
+	msg = list_first_entry(&hsw->tx_list, struct ipc_message, list);
+
+	list_move(&msg->list, &hsw->rx_list);
+
+	/* send the message */
+	sst_dsp_outbox_write(hsw->dsp, msg->tx_data, msg->tx_size);
+	sst_dsp_ipc_msg_tx(hsw->dsp, msg->header | SST_IPCX_BUSY);
+
+	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
+}
+
+/* locks held by caller */
+static void tx_msg_reply_complete(struct sst_hsw *hsw, struct ipc_message *msg)
+{
+	msg->complete = true;
+	trace_ipc_reply("completed", msg->header);
+
+	if (!msg->wait)
+		list_add_tail(&msg->list, &hsw->empty_list);
+	else
+		wake_up(&msg->waitq);
+}
+
+static int tx_wait_done(struct sst_hsw *hsw, struct ipc_message *msg,
+	void *rx_data)
+{
+	unsigned long flags;
+	int ret;
+
+	/* wait for DSP completion (in all cases atm inc pending) */
+	ret = wait_event_timeout(msg->waitq, msg->complete,
+		msecs_to_jiffies(IPC_TIMEOUT_MSECS));
+
+	spin_lock_irqsave(&hsw->dsp->spinlock, flags);
+	if (ret == 0) {
+		ipc_shim_dbg(hsw, "message timeout");
+
+		trace_ipc_error("error message timeout for", msg->header);
+		ret = -ETIMEDOUT;
+	} else {
+
+		/* copy the data returned from DSP */
+		if (msg->rx_size)
+			memcpy(rx_data, msg->rx_data, msg->rx_size);
+		ret = msg->errno;
+	}
+
+	list_add_tail(&msg->list, &hsw->empty_list);
+	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
+	return ret;
+}
+
+static int ipc_tx_message(struct sst_hsw *hsw, u32 header, void *tx_data,
+	size_t tx_bytes, void *rx_data, size_t rx_bytes, int wait)
+{
+	struct ipc_message *msg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&hsw->dsp->spinlock, flags);
+
+	msg = msg_get_empty(hsw);
+	if (msg == NULL) {
+		spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
+		return -EBUSY;
+	}
+
+	if (tx_bytes)
+		memcpy(msg->tx_data, tx_data, tx_bytes);
+
+	msg->header = header;
+	msg->tx_size = tx_bytes;
+	msg->rx_size = rx_bytes;
+	msg->wait = wait;
+	msg->errno = 0;
+	msg->pending = false;
+	msg->complete = false;
+
+	list_add_tail(&msg->list, &hsw->tx_list);
+	spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
+
+	queue_kthread_work(&hsw->kworker, &hsw->kwork);
+
+	if (wait)
+		return tx_wait_done(hsw, msg, rx_data);
+	else
+		return 0;
+}
+
+static inline int ipc_tx_message_wait(struct sst_hsw *hsw, u32 header,
+	void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes)
+{
+	return ipc_tx_message(hsw, header, tx_data, tx_bytes, rx_data,
+		rx_bytes, 1);
+}
+
+static inline int ipc_tx_message_nowait(struct sst_hsw *hsw, u32 header,
+	void *tx_data, size_t tx_bytes)
+{
+	return ipc_tx_message(hsw, header, tx_data, tx_bytes, NULL, 0, 0);
+}
+
+static void hsw_fw_ready(struct sst_hsw *hsw, u32 header)
+{
+	struct sst_hsw_ipc_fw_ready fw_ready;
+	u32 offset;
+
+	offset = (header & 0x1FFFFFFF) << 3;
+
+	dev_dbg(hsw->dev, "ipc: DSP is ready 0x%8.8x offset %d\n",
+		header, offset);
+
+	/* copy data from the DSP FW ready offset */
+	sst_dsp_read(hsw->dsp, &fw_ready, offset, sizeof(fw_ready));
+
+	sst_dsp_mailbox_init(hsw->dsp, fw_ready.inbox_offset,
+		fw_ready.inbox_size, fw_ready.outbox_offset,
+		fw_ready.outbox_size);
+
+	hsw->boot_complete = true;
+	wake_up(&hsw->boot_wait);
+
+	dev_dbg(hsw->dev, " mailbox upstream 0x%x - size 0x%x\n",
+		fw_ready.inbox_offset, fw_ready.inbox_size);
+	dev_dbg(hsw->dev, " mailbox downstream 0x%x - size 0x%x\n",
+		fw_ready.outbox_offset, fw_ready.outbox_size);
+}
+
+static void hsw_notification_work(struct work_struct *work)
+{
+	struct sst_hsw_stream *stream = container_of(work,
+			struct sst_hsw_stream, notify_work);
+	struct sst_hsw_ipc_stream_glitch_position *glitch = &stream->glitch;
+	struct sst_hsw_ipc_stream_get_position *pos = &stream->rpos;
+	struct sst_hsw *hsw = stream->hsw;
+	u32 reason;
+
+	reason = msg_get_notify_reason(stream->header);
+
+	switch (reason) {
+	case IPC_STG_GLITCH:
+		trace_ipc_notification("DSP stream under/overrun",
+			stream->reply.stream_hw_id);
+		sst_dsp_inbox_read(hsw->dsp, glitch, sizeof(*glitch));
+
+		dev_err(hsw->dev, "glitch %d pos 0x%x write pos 0x%x\n",
+			glitch->glitch_type, glitch->present_pos,
+			glitch->write_pos);
+		break;
+
+	case IPC_POSITION_CHANGED:
+		trace_ipc_notification("DSP stream position changed for",
+			stream->reply.stream_hw_id);
+		sst_dsp_inbox_read(hsw->dsp, pos, sizeof(pos));
+
+		if (stream->notify_position)
+			stream->notify_position(stream, stream->pdata);
+
+		break;
+	default:
+		dev_err(hsw->dev, "error: unknown notification 0x%x\n",
+			stream->header);
+		break;
+	}
+
+	/* tell DSP that notification has been handled */
+	sst_dsp_shim_update_bits_unlocked(hsw->dsp, SST_IPCD,
+		SST_IPCD_BUSY | SST_IPCD_DONE, SST_IPCD_DONE);
+
+	/* unmask busy interrupt */
+	sst_dsp_shim_update_bits_unlocked(hsw->dsp, SST_IMRX, SST_IMRX_BUSY, 0);
+}
+
+static struct ipc_message *reply_find_msg(struct sst_hsw *hsw, u32 header)
+{
+	struct ipc_message *msg;
+
+	/* clear reply bits & status bits */
+	header &= ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);
+
+	if (list_empty(&hsw->rx_list)) {
+		dev_err(hsw->dev, "error: rx list empty but received 0x%x\n",
+			header);
+		return NULL;
+	}
+
+	list_for_each_entry(msg, &hsw->rx_list, list) {
+		if (msg->header == header)
+			return msg;
+	}
+
+	return NULL;
+}
+
+static void hsw_stream_update(struct sst_hsw *hsw, struct ipc_message *msg)
+{
+	struct sst_hsw_stream *stream;
+	u32 header = msg->header & ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);
+	u32 stream_id = msg_get_stream_id(header);
+	u32 stream_msg = msg_get_stream_type(header);
+
+	stream = get_stream_by_id(hsw, stream_id);
+	if (stream == NULL)
+		return;
+
+	switch (stream_msg) {
+	case IPC_STR_STAGE_MESSAGE:
+	case IPC_STR_NOTIFICATION:
+	case IPC_STR_RESET:
+		break;
+	case IPC_STR_PAUSE:
+		stream->running = false;
+		trace_ipc_notification("stream paused",
+			stream->reply.stream_hw_id);
+		break;
+	case IPC_STR_RESUME:
+		stream->running = true;
+		trace_ipc_notification("stream running",
+			stream->reply.stream_hw_id);
+		break;
+	}
+}
+
+static int hsw_process_reply(struct sst_hsw *hsw, u32 header)
+{
+	struct ipc_message *msg;
+	u32 reply = msg_get_global_reply(header);
+
+	trace_ipc_reply("processing -->", header);
+
+	msg = reply_find_msg(hsw, header);
+	if (msg == NULL) {
+		trace_ipc_error("error: can't find message header", header);
+		return -EIO;
+	}
+
+	/* first process the header */
+	switch (reply) {
+	case IPC_GLB_REPLY_PENDING:
+		trace_ipc_pending_reply("received", header);
+		msg->pending = true;
+		hsw->pending = true;
+		return 1;
+	case IPC_GLB_REPLY_SUCCESS:
+		if (msg->pending) {
+			trace_ipc_pending_reply("completed", header);
+			sst_dsp_inbox_read(hsw->dsp, msg->rx_data,
+				msg->rx_size);
+			hsw->pending = false;
+		} else {
+			/* copy data from the DSP */
+			sst_dsp_outbox_read(hsw->dsp, msg->rx_data,
+				msg->rx_size);
+		}
+		break;
+	/* these will be rare - but useful for debug */
+	case IPC_GLB_REPLY_UNKNOWN_MESSAGE_TYPE:
+		trace_ipc_error("error: unknown message type", header);
+		msg->errno = -EBADMSG;
+		break;
+	case IPC_GLB_REPLY_OUT_OF_RESOURCES:
+		trace_ipc_error("error: out of resources", header);
+		msg->errno = -ENOMEM;
+		break;
+	case IPC_GLB_REPLY_BUSY:
+		trace_ipc_error("error: reply busy", header);
+		msg->errno = -EBUSY;
+		break;
+	case IPC_GLB_REPLY_FAILURE:
+		trace_ipc_error("error: reply failure", header);
+		msg->errno = -EINVAL;
+		break;
+	case IPC_GLB_REPLY_STAGE_UNINITIALIZED:
+		trace_ipc_error("error: stage uninitialized", header);
+		msg->errno = -EINVAL;
+		break;
+	case IPC_GLB_REPLY_NOT_FOUND:
+		trace_ipc_error("error: reply not found", header);
+		msg->errno = -EINVAL;
+		break;
+	case IPC_GLB_REPLY_SOURCE_NOT_STARTED:
+		trace_ipc_error("error: source not started", header);
+		msg->errno = -EINVAL;
+		break;
+	case IPC_GLB_REPLY_INVALID_REQUEST:
+		trace_ipc_error("error: invalid request", header);
+		msg->errno = -EINVAL;
+		break;
+	case IPC_GLB_REPLY_ERROR_INVALID_PARAM:
+		trace_ipc_error("error: invalid parameter", header);
+		msg->errno = -EINVAL;
+		break;
+	default:
+		trace_ipc_error("error: unknown reply", header);
+		msg->errno = -EINVAL;
+		break;
+	}
+
+	/* update any stream states */
+	hsw_stream_update(hsw, msg);
+
+	/* wake up and return the error if we have waiters on this message ? */
+	list_del(&msg->list);
+	tx_msg_reply_complete(hsw, msg);
+
+	return 1;
+}
+
+static int hsw_stream_message(struct sst_hsw *hsw, u32 header)
+{
+	u32 stream_msg, stream_id, stage_type;
+	struct sst_hsw_stream *stream;
+	int handled = 0;
+
+	stream_msg = msg_get_stream_type(header);
+	stream_id = msg_get_stream_id(header);
+	stage_type = msg_get_stage_type(header);
+
+	stream = get_stream_by_id(hsw, stream_id);
+	if (stream == NULL)
+		return handled;
+
+	stream->header = header;
+
+	switch (stream_msg) {
+	case IPC_STR_STAGE_MESSAGE:
+		dev_err(hsw->dev, "error: stage msg not implemented 0x%8.8x\n",
+			header);
+		break;
+	case IPC_STR_NOTIFICATION:
+		schedule_work(&stream->notify_work);
+		break;
+	default:
+		/* handle pending message complete request */
+		handled = hsw_process_reply(hsw, header);
+		break;
+	}
+
+	return handled;
+}
+
+static int hsw_log_message(struct sst_hsw *hsw, u32 header)
+{
+	u32 operation = (header & IPC_LOG_OP_MASK) >>  IPC_LOG_OP_SHIFT;
+	struct sst_hsw_log_stream *stream = &hsw->log_stream;
+	int ret = 1;
+
+	if (operation != IPC_DEBUG_REQUEST_LOG_DUMP) {
+		dev_err(hsw->dev,
+			"error: log msg not implemented 0x%8.8x\n", header);
+		return 0;
+	}
+
+	mutex_lock(&stream->rw_mutex);
+	stream->last_pos = stream->curr_pos;
+	sst_dsp_inbox_read(
+		hsw->dsp, &stream->curr_pos, sizeof(stream->curr_pos));
+	mutex_unlock(&stream->rw_mutex);
+
+	schedule_work(&stream->notify_work);
+
+	return ret;
+}
+
+static int hsw_process_notification(struct sst_hsw *hsw)
+{
+	struct sst_dsp *sst = hsw->dsp;
+	u32 type, header;
+	int handled = 1;
+
+	header = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
+	type = msg_get_global_type(header);
+
+	trace_ipc_request("processing -->", header);
+
+	/* FW Ready is a special case */
+	if (!hsw->boot_complete && header & IPC_FW_READY) {
+		hsw_fw_ready(hsw, header);
+		return handled;
+	}
+
+	switch (type) {
+	case IPC_GLB_GET_FW_VERSION:
+	case IPC_GLB_ALLOCATE_STREAM:
+	case IPC_GLB_FREE_STREAM:
+	case IPC_GLB_GET_FW_CAPABILITIES:
+	case IPC_GLB_REQUEST_DUMP:
+	case IPC_GLB_GET_DEVICE_FORMATS:
+	case IPC_GLB_SET_DEVICE_FORMATS:
+	case IPC_GLB_ENTER_DX_STATE:
+	case IPC_GLB_GET_MIXER_STREAM_INFO:
+	case IPC_GLB_MAX_IPC_MESSAGE_TYPE:
+	case IPC_GLB_RESTORE_CONTEXT:
+	case IPC_GLB_SHORT_REPLY:
+		dev_err(hsw->dev, "error: message type %d header 0x%x\n",
+			type, header);
+		break;
+	case IPC_GLB_STREAM_MESSAGE:
+		handled = hsw_stream_message(hsw, header);
+		break;
+	case IPC_GLB_DEBUG_LOG_MESSAGE:
+		handled = hsw_log_message(hsw, header);
+		break;
+	default:
+		dev_err(hsw->dev, "error: unexpected type %d hdr 0x%8.8x\n",
+			type, header);
+		break;
+	}
+
+	return handled;
+}
+
+static irqreturn_t hsw_irq_thread(int irq, void *context)
+{
+	struct sst_dsp *sst = (struct sst_dsp *) context;
+	struct sst_hsw *hsw = sst_dsp_get_thread_context(sst);
+	u32 ipcx, ipcd;
+	int handled;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sst->spinlock, flags);
+
+	ipcx = sst_dsp_ipc_msg_rx(hsw->dsp);
+	ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
+
+	/* reply message from DSP */
+	if (ipcx & SST_IPCX_DONE) {
+
+		/* Handle Immediate reply from DSP Core */
+		handled = hsw_process_reply(hsw, ipcx);
+
+		if (handled > 0) {
+			/* clear DONE bit - tell DSP we have completed */
+			sst_dsp_shim_update_bits_unlocked(sst, SST_IPCX,
+				SST_IPCX_DONE, 0);
+
+			/* unmask Done interrupt */
+			sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
+				SST_IMRX_DONE, 0);
+		}
+	}
+
+	/* new message from DSP */
+	if (ipcd & SST_IPCD_BUSY) {
+
+		/* Handle Notification and Delayed reply from DSP Core */
+		handled = hsw_process_notification(hsw);
+
+		/* clear BUSY bit and set DONE bit - accept new messages */
+		if (handled > 0) {
+			sst_dsp_shim_update_bits_unlocked(sst, SST_IPCD,
+				SST_IPCD_BUSY | SST_IPCD_DONE, SST_IPCD_DONE);
+
+			/* unmask busy interrupt */
+			sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
+				SST_IMRX_BUSY, 0);
+		}
+	}
+
+	spin_unlock_irqrestore(&sst->spinlock, flags);
+
+	/* continue to send any remaining messages... */
+	queue_kthread_work(&hsw->kworker, &hsw->kwork);
+
+	return IRQ_HANDLED;
+}
+
+int sst_hsw_fw_get_version(struct sst_hsw *hsw,
+	struct sst_hsw_ipc_fw_version *version)
+{
+	int ret;
+
+	ret = ipc_tx_message_wait(hsw, IPC_GLB_TYPE(IPC_GLB_GET_FW_VERSION),
+		NULL, 0, version, sizeof(*version));
+	if (ret < 0)
+		dev_err(hsw->dev, "error: get version failed\n");
+
+	return ret;
+}
+
+/* Mixer Controls */
+int sst_hsw_stream_mute(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 stage_id, u32 channel)
+{
+	int ret;
+
+	ret = sst_hsw_stream_get_volume(hsw, stream, stage_id, channel,
+		&stream->mute_volume[channel]);
+	if (ret < 0)
+		return ret;
+
+	ret = sst_hsw_stream_set_volume(hsw, stream, stage_id, channel, 0);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: can't unmute stream %d channel %d\n",
+			stream->reply.stream_hw_id, channel);
+		return ret;
+	}
+
+	stream->mute[channel] = 1;
+	return 0;
+}
+
+int sst_hsw_stream_unmute(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 stage_id, u32 channel)
+
+{
+	int ret;
+
+	stream->mute[channel] = 0;
+	ret = sst_hsw_stream_set_volume(hsw, stream, stage_id, channel,
+		stream->mute_volume[channel]);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: can't unmute stream %d channel %d\n",
+			stream->reply.stream_hw_id, channel);
+		return ret;
+	}
+
+	return 0;
+}
+
+int sst_hsw_stream_get_volume(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 stage_id, u32 channel, u32 *volume)
+{
+	if (channel > 1)
+		return -EINVAL;
+
+	sst_dsp_read(hsw->dsp, volume,
+		stream->reply.volume_register_address[channel], sizeof(volume));
+
+	return 0;
+}
+
+int sst_hsw_stream_set_volume_curve(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u64 curve_duration,
+	enum sst_hsw_volume_curve curve)
+{
+	/* curve duration in steps of 100ns */
+	stream->vol_req.curve_duration = curve_duration;
+	stream->vol_req.curve_type = curve;
+
+	return 0;
+}
+
+/* stream volume */
+int sst_hsw_stream_set_volume(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 stage_id, u32 channel, u32 volume)
+{
+	struct sst_hsw_ipc_volume_req *req;
+	u32 header;
+	int ret;
+
+	trace_ipc_request("set stream volume", stream->reply.stream_hw_id);
+
+	if (channel > 1)
+		return -EINVAL;
+
+	if (stream->mute[channel]) {
+		stream->mute_volume[channel] = volume;
+		return 0;
+	}
+
+	header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) |
+		IPC_STR_TYPE(IPC_STR_STAGE_MESSAGE);
+	header |= (stream->reply.stream_hw_id << IPC_STR_ID_SHIFT);
+	header |= (IPC_STG_SET_VOLUME << IPC_STG_TYPE_SHIFT);
+	header |= (stage_id << IPC_STG_ID_SHIFT);
+
+	req = &stream->vol_req;
+	req->channel = channel;
+	req->target_volume = volume;
+
+	ret = ipc_tx_message_wait(hsw, header, req, sizeof(*req), NULL, 0);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: set stream volume failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int sst_hsw_mixer_mute(struct sst_hsw *hsw, u32 stage_id, u32 channel)
+{
+	int ret;
+
+	ret = sst_hsw_mixer_get_volume(hsw, stage_id, channel,
+		&hsw->mute_volume[channel]);
+	if (ret < 0)
+		return ret;
+
+	ret = sst_hsw_mixer_set_volume(hsw, stage_id, channel, 0);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: failed to unmute mixer channel %d\n",
+			channel);
+		return ret;
+	}
+
+	hsw->mute[channel] = 1;
+	return 0;
+}
+
+int sst_hsw_mixer_unmute(struct sst_hsw *hsw, u32 stage_id, u32 channel)
+{
+	int ret;
+
+	ret = sst_hsw_mixer_set_volume(hsw, stage_id, channel,
+		hsw->mixer_info.volume_register_address[channel]);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: failed to unmute mixer channel %d\n",
+			channel);
+		return ret;
+	}
+
+	hsw->mute[channel] = 0;
+	return 0;
+}
+
+int sst_hsw_mixer_get_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
+	u32 *volume)
+{
+	if (channel > 1)
+		return -EINVAL;
+
+	sst_dsp_read(hsw->dsp, volume,
+		hsw->mixer_info.volume_register_address[channel],
+		sizeof(*volume));
+
+	return 0;
+}
+
+int sst_hsw_mixer_set_volume_curve(struct sst_hsw *hsw,
+	 u64 curve_duration, enum sst_hsw_volume_curve curve)
+{
+	/* curve duration in steps of 100ns */
+	hsw->curve_duration = curve_duration;
+	hsw->curve_type = curve;
+
+	return 0;
+}
+
+/* global mixer volume */
+int sst_hsw_mixer_set_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
+	u32 volume)
+{
+	struct sst_hsw_ipc_volume_req req;
+	u32 header;
+	int ret;
+
+	trace_ipc_request("set mixer volume", volume);
+
+	/* set both at same time ? */
+	if (channel == 2) {
+		if (hsw->mute[0] && hsw->mute[1]) {
+			hsw->mute_volume[0] = hsw->mute_volume[1] = volume;
+			return 0;
+		} else if (hsw->mute[0])
+			req.channel = 1;
+		else if (hsw->mute[1])
+			req.channel = 0;
+		else
+			req.channel = 0xffffffff;
+	} else {
+		/* set only 1 channel */
+		if (hsw->mute[channel]) {
+			hsw->mute_volume[channel] = volume;
+			return 0;
+		}
+		req.channel = channel;
+	}
+
+	header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) |
+		IPC_STR_TYPE(IPC_STR_STAGE_MESSAGE);
+	header |= (hsw->mixer_info.mixer_hw_id << IPC_STR_ID_SHIFT);
+	header |= (IPC_STG_SET_VOLUME << IPC_STG_TYPE_SHIFT);
+	header |= (stage_id << IPC_STG_ID_SHIFT);
+
+	req.curve_duration = hsw->curve_duration;
+	req.curve_type = hsw->curve_type;
+	req.target_volume = volume;
+
+	ret = ipc_tx_message_wait(hsw, header, &req, sizeof(req), NULL, 0);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: set mixer volume failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+/* Stream API */
+struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id,
+	u32 (*notify_position)(struct sst_hsw_stream *stream, void *data),
+	void *data)
+{
+	struct sst_hsw_stream *stream;
+
+	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	if (stream == NULL)
+		return NULL;
+
+	list_add(&stream->node, &hsw->stream_list);
+	stream->notify_position = notify_position;
+	stream->pdata = data;
+	stream->hsw = hsw;
+	stream->host_id = id;
+
+	/* work to process notification messages */
+	INIT_WORK(&stream->notify_work, hsw_notification_work);
+
+	return stream;
+}
+
+int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
+{
+	u32 header;
+	int ret = 0;
+
+	/* dont free DSP streams that are not commited */
+	if (!stream->commited)
+		goto out;
+
+	trace_ipc_request("stream free", stream->host_id);
+
+	stream->free_req.stream_id = stream->reply.stream_hw_id;
+	header = IPC_GLB_TYPE(IPC_GLB_FREE_STREAM);
+
+	ret = ipc_tx_message_wait(hsw, header, &stream->free_req,
+		sizeof(stream->free_req), NULL, 0);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: free stream %d failed\n",
+			stream->free_req.stream_id);
+		return -EAGAIN;
+	}
+
+	trace_hsw_stream_free_req(stream, &stream->free_req);
+
+out:
+	list_del(&stream->node);
+	kfree(stream);
+
+	return ret;
+}
+
+int sst_hsw_stream_set_bits(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, enum sst_hsw_bitdepth bits)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set bits\n");
+		return -EINVAL;
+	}
+
+	stream->request.format.bitdepth = bits;
+	return 0;
+}
+
+int sst_hsw_stream_set_channels(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, int channels)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set channels\n");
+		return -EINVAL;
+	}
+
+	/* stereo is only supported atm */
+	if (channels != 2)
+		return -EINVAL;
+
+	stream->request.format.ch_num = channels;
+	return 0;
+}
+
+int sst_hsw_stream_set_rate(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, int rate)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set rate\n");
+		return -EINVAL;
+	}
+
+	stream->request.format.frequency = rate;
+	return 0;
+}
+
+int sst_hsw_stream_set_map_config(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 map,
+	enum sst_hsw_channel_config config)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set map\n");
+		return -EINVAL;
+	}
+
+	stream->request.format.map = map;
+	stream->request.format.config = config;
+	return 0;
+}
+
+int sst_hsw_stream_set_style(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, enum sst_hsw_interleaving style)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set style\n");
+		return -EINVAL;
+	}
+
+	stream->request.format.style = style;
+	return 0;
+}
+
+int sst_hsw_stream_set_valid(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 bits)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set valid bits\n");
+		return -EINVAL;
+	}
+
+	stream->request.format.valid_bit = bits;
+	return 0;
+}
+
+/* Stream Configuration */
+int sst_hsw_stream_format(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	enum sst_hsw_stream_path_id path_id,
+	enum sst_hsw_stream_type stream_type,
+	enum sst_hsw_stream_format format_id)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set format\n");
+		return -EINVAL;
+	}
+
+	stream->request.path_id = path_id;
+	stream->request.stream_type = stream_type;
+	stream->request.format_id = format_id;
+
+	trace_hsw_stream_alloc_request(stream, &stream->request);
+
+	return 0;
+}
+
+int sst_hsw_stream_buffer(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 ring_pt_address, u32 num_pages,
+	u32 ring_size, u32 ring_offset, u32 ring_first_pfn)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for buffer\n");
+		return -EINVAL;
+	}
+
+	stream->request.ringinfo.ring_pt_address = ring_pt_address;
+	stream->request.ringinfo.num_pages = num_pages;
+	stream->request.ringinfo.ring_size = ring_size;
+	stream->request.ringinfo.ring_offset = ring_offset;
+	stream->request.ringinfo.ring_first_pfn = ring_first_pfn;
+
+	trace_hsw_stream_buffer(stream);
+
+	return 0;
+}
+
+int sst_hsw_stream_set_module_info(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, enum sst_hsw_module_id module_id,
+	u32 entry_point)
+{
+	struct sst_hsw_module_map *map = &stream->request.map;
+
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set module\n");
+		return -EINVAL;
+	}
+
+	/* only support initial module atm */
+	map->module_entries_count = 1;
+	map->module_entries[0].module_id = module_id;
+	map->module_entries[0].entry_point = entry_point;
+
+	return 0;
+}
+
+int sst_hsw_stream_set_pmemory_info(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 offset, u32 size)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set pmem\n");
+		return -EINVAL;
+	}
+
+	stream->request.persistent_mem.offset = offset;
+	stream->request.persistent_mem.size = size;
+
+	return 0;
+}
+
+int sst_hsw_stream_set_smemory_info(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 offset, u32 size)
+{
+	if (stream->commited) {
+		dev_err(hsw->dev, "error: stream committed for set smem\n");
+		return -EINVAL;
+	}
+
+	stream->request.scratch_mem.offset = offset;
+	stream->request.scratch_mem.size = size;
+
+	return 0;
+}
+
+int sst_hsw_stream_commit(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
+{
+	struct sst_hsw_ipc_stream_alloc_req *str_req = &stream->request;
+	struct sst_hsw_ipc_stream_alloc_reply *reply = &stream->reply;
+	u32 header;
+	int ret;
+
+	trace_ipc_request("stream alloc", stream->host_id);
+
+	header = IPC_GLB_TYPE(IPC_GLB_ALLOCATE_STREAM);
+
+	ret = ipc_tx_message_wait(hsw, header, str_req, sizeof(*str_req),
+		reply, sizeof(*reply));
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: stream commit failed\n");
+		return ret;
+	}
+
+	stream->commited = 1;
+	trace_hsw_stream_alloc_reply(stream);
+
+	return 0;
+}
+
+/* Stream Information - these calls could be inline but we want the IPC
+ ABI to be opaque to client PCM drivers to cope with any future ABI changes */
+int sst_hsw_stream_get_hw_id(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream)
+{
+	return stream->reply.stream_hw_id;
+}
+
+int sst_hsw_stream_get_mixer_id(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream)
+{
+	return stream->reply.mixer_hw_id;
+}
+
+u32 sst_hsw_stream_get_read_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream)
+{
+	return stream->reply.read_position_register_address;
+}
+
+u32 sst_hsw_stream_get_pointer_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream)
+{
+	return stream->reply.presentation_position_register_address;
+}
+
+u32 sst_hsw_stream_get_peak_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 channel)
+{
+	if (channel >= 2)
+		return 0;
+
+	return stream->reply.peak_meter_register_address[channel];
+}
+
+u32 sst_hsw_stream_get_vol_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 channel)
+{
+	if (channel >= 2)
+		return 0;
+
+	return stream->reply.volume_register_address[channel];
+}
+
+int sst_hsw_mixer_get_info(struct sst_hsw *hsw)
+{
+	struct sst_hsw_ipc_stream_info_reply *reply;
+	u32 header;
+	int ret;
+
+	reply = &hsw->mixer_info;
+	header = IPC_GLB_TYPE(IPC_GLB_GET_MIXER_STREAM_INFO);
+
+	trace_ipc_request("get global mixer info", 0);
+
+	ret = ipc_tx_message_wait(hsw, header, NULL, 0, reply, sizeof(*reply));
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: get stream info failed\n");
+		return ret;
+	}
+
+	trace_hsw_mixer_info_reply(reply);
+
+	return 0;
+}
+
+/* Send stream command */
+static int sst_hsw_stream_operations(struct sst_hsw *hsw, int type,
+	int stream_id, int wait)
+{
+	u32 header;
+
+	header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) | IPC_STR_TYPE(type);
+	header |= (stream_id << IPC_STR_ID_SHIFT);
+
+	if (wait)
+		return ipc_tx_message_wait(hsw, header, NULL, 0, NULL, 0);
+	else
+		return ipc_tx_message_nowait(hsw, header, NULL, 0);
+}
+
+/* Stream ALSA trigger operations */
+int sst_hsw_stream_pause(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	int wait)
+{
+	int ret;
+
+	trace_ipc_request("stream pause", stream->reply.stream_hw_id);
+
+	ret = sst_hsw_stream_operations(hsw, IPC_STR_PAUSE,
+		stream->reply.stream_hw_id, wait);
+	if (ret < 0)
+		dev_err(hsw->dev, "error: failed to pause stream %d\n",
+			stream->reply.stream_hw_id);
+
+	return ret;
+}
+
+int sst_hsw_stream_resume(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	int wait)
+{
+	int ret;
+
+	trace_ipc_request("stream resume", stream->reply.stream_hw_id);
+
+	ret = sst_hsw_stream_operations(hsw, IPC_STR_RESUME,
+		stream->reply.stream_hw_id, wait);
+	if (ret < 0)
+		dev_err(hsw->dev, "error: failed to resume stream %d\n",
+			stream->reply.stream_hw_id);
+
+	return ret;
+}
+
+int sst_hsw_stream_reset(struct sst_hsw *hsw, struct sst_hsw_stream *stream)
+{
+	int ret, tries = 10;
+
+	/* dont reset streams that are not commited */
+	if (!stream->commited)
+		return 0;
+
+	/* wait for pause to complete before we reset the stream */
+	while (stream->running && tries--)
+		msleep(1);
+	if (!tries) {
+		dev_err(hsw->dev, "error: reset stream %d still running\n",
+			stream->reply.stream_hw_id);
+		return -EINVAL;
+	}
+
+	trace_ipc_request("stream reset", stream->reply.stream_hw_id);
+
+	ret = sst_hsw_stream_operations(hsw, IPC_STR_RESET,
+		stream->reply.stream_hw_id, 1);
+	if (ret < 0)
+		dev_err(hsw->dev, "error: failed to reset stream %d\n",
+			stream->reply.stream_hw_id);
+	return ret;
+}
+
+/* Stream pointer positions */
+int sst_hsw_get_dsp_position(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream)
+{
+	return stream->rpos.position;
+}
+
+int sst_hsw_stream_set_write_position(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 stage_id, u32 position)
+{
+	u32 header;
+	int ret;
+
+	trace_stream_write_position(stream->reply.stream_hw_id, position);
+
+	header = IPC_GLB_TYPE(IPC_GLB_STREAM_MESSAGE) |
+		IPC_STR_TYPE(IPC_STR_STAGE_MESSAGE);
+	header |= (stream->reply.stream_hw_id << IPC_STR_ID_SHIFT);
+	header |= (IPC_STG_SET_WRITE_POSITION << IPC_STG_TYPE_SHIFT);
+	header |= (stage_id << IPC_STG_ID_SHIFT);
+	stream->wpos.position = position;
+
+	ret = ipc_tx_message_nowait(hsw, header, &stream->wpos,
+		sizeof(stream->wpos));
+	if (ret < 0)
+		dev_err(hsw->dev, "error: stream %d set position %d failed\n",
+			stream->reply.stream_hw_id, position);
+
+	return ret;
+}
+
+/* physical BE config */
+int sst_hsw_device_set_config(struct sst_hsw *hsw,
+	enum sst_hsw_device_id dev, enum sst_hsw_device_mclk mclk,
+	enum sst_hsw_device_mode mode, u32 clock_divider)
+{
+	struct sst_hsw_ipc_device_config_req config;
+	u32 header;
+	int ret;
+
+	trace_ipc_request("set device config", dev);
+
+	config.ssp_interface = dev;
+	config.clock_frequency = mclk;
+	config.mode = mode;
+	config.clock_divider = clock_divider;
+
+	trace_hsw_device_config_req(&config);
+
+	header = IPC_GLB_TYPE(IPC_GLB_SET_DEVICE_FORMATS);
+
+	ret = ipc_tx_message_wait(hsw, header, &config, sizeof(config),
+		NULL, 0);
+	if (ret < 0)
+		dev_err(hsw->dev, "error: set device formats failed\n");
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sst_hsw_device_set_config);
+
+/* DX Config */
+int sst_hsw_dx_set_state(struct sst_hsw *hsw,
+	enum sst_hsw_dx_state state, struct sst_hsw_ipc_dx_reply *dx)
+{
+	u32 header, state_;
+	int ret;
+
+	header = IPC_GLB_TYPE(IPC_GLB_ENTER_DX_STATE);
+	state_ = state;
+
+	trace_ipc_request("PM enter Dx state", state);
+
+	ret = ipc_tx_message_wait(hsw, header, &state_, sizeof(state_),
+		dx, sizeof(dx));
+	if (ret < 0) {
+		dev_err(hsw->dev, "ipc: error set dx state %d failed\n", state);
+		return ret;
+	}
+
+	dev_dbg(hsw->dev, "ipc: got %d entry numbers for state %d\n",
+		dx->entries_no, state);
+
+	memcpy(&hsw->dx, dx, sizeof(*dx));
+	return 0;
+}
+
+/* Used to save state into hsw->dx_reply */
+int sst_hsw_dx_get_state(struct sst_hsw *hsw, u32 item,
+	u32 *offset, u32 *size, u32 *source)
+{
+	struct sst_hsw_ipc_dx_memory_item *dx_mem;
+	struct sst_hsw_ipc_dx_reply *dx_reply;
+	int entry_no;
+
+	dx_reply = &hsw->dx;
+	entry_no = dx_reply->entries_no;
+
+	trace_ipc_request("PM get Dx state", entry_no);
+
+	if (item >= entry_no)
+		return -EINVAL;
+
+	dx_mem = &dx_reply->mem_info[item];
+	*offset = dx_mem->offset;
+	*size = dx_mem->size;
+	*source = dx_mem->source;
+
+	return 0;
+}
+
+static int msg_empty_list_init(struct sst_hsw *hsw)
+{
+	int i;
+
+	hsw->msg = kzalloc(sizeof(struct ipc_message) *
+		IPC_EMPTY_LIST_SIZE, GFP_KERNEL);
+	if (hsw->msg == NULL)
+		return -ENOMEM;
+
+	for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) {
+		init_waitqueue_head(&hsw->msg[i].waitq);
+		list_add(&hsw->msg[i].list, &hsw->empty_list);
+	}
+
+	return 0;
+}
+
+void sst_hsw_set_scratch_module(struct sst_hsw *hsw,
+	struct sst_module *scratch)
+{
+	hsw->scratch = scratch;
+}
+
+struct sst_dsp *sst_hsw_get_dsp(struct sst_hsw *hsw)
+{
+	return hsw->dsp;
+}
+
+static struct sst_dsp_device hsw_dev = {
+	.thread = hsw_irq_thread,
+	.ops = &haswell_ops,
+};
+
+int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata)
+{
+	struct sst_hsw_ipc_fw_version version;
+	struct sst_hsw *hsw;
+	struct sst_fw *hsw_sst_fw;
+	int ret;
+
+	dev_dbg(dev, "initialising Audio DSP IPC\n");
+
+	hsw = devm_kzalloc(dev, sizeof(*hsw), GFP_KERNEL);
+	if (hsw == NULL)
+		return -ENOMEM;
+
+	hsw->dev = dev;
+	INIT_LIST_HEAD(&hsw->stream_list);
+	INIT_LIST_HEAD(&hsw->tx_list);
+	INIT_LIST_HEAD(&hsw->rx_list);
+	INIT_LIST_HEAD(&hsw->empty_list);
+	init_waitqueue_head(&hsw->boot_wait);
+	init_waitqueue_head(&hsw->wait_txq);
+
+	ret = msg_empty_list_init(hsw);
+	if (ret < 0)
+		goto list_err;
+
+	/* start the IPC message thread */
+	init_kthread_worker(&hsw->kworker);
+	hsw->tx_thread = kthread_run(kthread_worker_fn,
+					   &hsw->kworker,
+					   dev_name(hsw->dev));
+	if (IS_ERR(hsw->tx_thread)) {
+		ret = PTR_ERR(hsw->tx_thread);
+		dev_err(hsw->dev, "error: failed to create message TX task\n");
+		goto list_err;
+	}
+	init_kthread_work(&hsw->kwork, ipc_tx_msgs);
+
+	hsw_dev.thread_context = hsw;
+
+	/* init SST shim */
+	hsw->dsp = sst_dsp_new(dev, &hsw_dev, pdata);
+	if (hsw->dsp == NULL) {
+		ret = -ENODEV;
+		goto list_err;
+	}
+
+	/* keep the DSP in reset state for base FW loading */
+	sst_dsp_reset(hsw->dsp);
+
+	hsw_sst_fw = sst_fw_new(hsw->dsp, pdata->fw, hsw);
+
+	if (hsw_sst_fw == NULL) {
+		ret = -ENODEV;
+		dev_err(dev, "error: failed to load firmware\n");
+		goto fw_err;
+	}
+
+	/* wait for DSP boot completion */
+	sst_dsp_boot(hsw->dsp);
+	ret = wait_event_timeout(hsw->boot_wait, hsw->boot_complete,
+		msecs_to_jiffies(IPC_BOOT_MSECS));
+	if (ret == 0) {
+		ret = -EIO;
+		dev_err(hsw->dev, "error: ADSP boot timeout\n");
+		goto boot_err;
+	}
+
+	/* get the FW version */
+	sst_hsw_fw_get_version(hsw, &version);
+	dev_info(hsw->dev, "FW loaded: type %d - version: %d.%d build %d\n",
+		version.type, version.major, version.minor, version.build);
+
+	/* get the globalmixer */
+	ret = sst_hsw_mixer_get_info(hsw);
+	if (ret < 0) {
+		dev_err(hsw->dev, "error: failed to get stream info\n");
+		goto boot_err;
+	}
+
+	pdata->dsp = hsw;
+	return 0;
+
+boot_err:
+	sst_dsp_reset(hsw->dsp);
+	sst_fw_free(hsw_sst_fw);
+fw_err:
+	sst_dsp_free(hsw->dsp);
+	kfree(hsw->msg);
+list_err:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
+
+void sst_hsw_dsp_free(struct device *dev, struct sst_pdata *pdata)
+{
+	struct sst_hsw *hsw = pdata->dsp;
+
+	sst_dsp_reset(hsw->dsp);
+	sst_fw_free_all(hsw->dsp);
+	sst_dsp_free(hsw->dsp);
+	kfree(hsw->scratch);
+	kfree(hsw->msg);
+}
+EXPORT_SYMBOL_GPL(sst_hsw_dsp_free);

sound/soc/intel/sst-haswell-ipc.h

+/*
+ * Intel SST Haswell/Broadwell IPC Support
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __SST_HASWELL_IPC_H
+#define __SST_HASWELL_IPC_H
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#define SST_HSW_NO_CHANNELS		2
+#define SST_HSW_MAX_DX_REGIONS		14
+
+#define SST_HSW_FW_LOG_CONFIG_DWORDS	12
+#define SST_HSW_GLOBAL_LOG		15
+
+/**
+ * Upfront defined maximum message size that is
+ * expected by the in/out communication pipes in FW.
+ */
+#define SST_HSW_IPC_MAX_PAYLOAD_SIZE	400
+#define SST_HSW_MAX_INFO_SIZE		64
+#define SST_HSW_BUILD_HASH_LENGTH	40
+
+struct sst_hsw;
+struct sst_hsw_stream;
+struct sst_hsw_log_stream;
+struct sst_pdata;
+struct sst_module;
+extern struct sst_ops haswell_ops;
+
+/* Stream Allocate Path ID */
+enum sst_hsw_stream_path_id {
+	SST_HSW_STREAM_PATH_SSP0_OUT = 0,
+	SST_HSW_STREAM_PATH_SSP0_IN = 1,
+	SST_HSW_STREAM_PATH_MAX_PATH_ID = 2,
+};
+
+/* Stream Allocate Stream Type */
+enum sst_hsw_stream_type {
+	SST_HSW_STREAM_TYPE_RENDER = 0,
+	SST_HSW_STREAM_TYPE_SYSTEM = 1,
+	SST_HSW_STREAM_TYPE_CAPTURE = 2,
+	SST_HSW_STREAM_TYPE_LOOPBACK = 3,
+	SST_HSW_STREAM_TYPE_MAX_STREAM_TYPE = 4,
+};
+
+/* Stream Allocate Stream Format */
+enum sst_hsw_stream_format {
+	SST_HSW_STREAM_FORMAT_PCM_FORMAT = 0,
+	SST_HSW_STREAM_FORMAT_MP3_FORMAT = 1,
+	SST_HSW_STREAM_FORMAT_AAC_FORMAT = 2,
+	SST_HSW_STREAM_FORMAT_MAX_FORMAT_ID = 3,
+};
+
+/* Device ID */
+enum sst_hsw_device_id {
+	SST_HSW_DEVICE_SSP_0   = 0,
+	SST_HSW_DEVICE_SSP_1   = 1,
+};
+
+/* Device Master Clock Frequency */
+enum sst_hsw_device_mclk {
+	SST_HSW_DEVICE_MCLK_OFF         = 0,
+	SST_HSW_DEVICE_MCLK_FREQ_6_MHZ  = 1,
+	SST_HSW_DEVICE_MCLK_FREQ_12_MHZ = 2,
+	SST_HSW_DEVICE_MCLK_FREQ_24_MHZ = 3,
+};
+
+/* Device Clock Master */
+enum sst_hsw_device_mode {
+	SST_HSW_DEVICE_CLOCK_SLAVE   = 0,
+	SST_HSW_DEVICE_CLOCK_MASTER  = 1,
+};
+
+/* DX Power State */
+enum sst_hsw_dx_state {
+	SST_HSW_DX_STATE_D0     = 0,
+	SST_HSW_DX_STATE_D1     = 1,
+	SST_HSW_DX_STATE_D3     = 3,
+	SST_HSW_DX_STATE_MAX	= 3,
+};
+
+/* Audio stream stage IDs */
+enum sst_hsw_fx_stage_id {
+	SST_HSW_STAGE_ID_WAVES = 0,
+	SST_HSW_STAGE_ID_DTS   = 1,
+	SST_HSW_STAGE_ID_DOLBY = 2,
+	SST_HSW_STAGE_ID_BOOST = 3,
+	SST_HSW_STAGE_ID_MAX_FX_ID
+};
+
+/* DX State Type */
+enum sst_hsw_dx_type {
+	SST_HSW_DX_TYPE_FW_IMAGE = 0,
+	SST_HSW_DX_TYPE_MEMORY_DUMP = 1
+};
+
+/* Volume Curve Type*/
+enum sst_hsw_volume_curve {
+	SST_HSW_VOLUME_CURVE_NONE = 0,
+	SST_HSW_VOLUME_CURVE_FADE = 1
+};
+
+/* Sample ordering */
+enum sst_hsw_interleaving {
+	SST_HSW_INTERLEAVING_PER_CHANNEL = 0,
+	SST_HSW_INTERLEAVING_PER_SAMPLE  = 1,
+};
+
+/* Channel indices */
+enum sst_hsw_channel_index {
+	SST_HSW_CHANNEL_LEFT            = 0,
+	SST_HSW_CHANNEL_CENTER          = 1,
+	SST_HSW_CHANNEL_RIGHT           = 2,
+	SST_HSW_CHANNEL_LEFT_SURROUND   = 3,
+	SST_HSW_CHANNEL_CENTER_SURROUND = 3,
+	SST_HSW_CHANNEL_RIGHT_SURROUND  = 4,
+	SST_HSW_CHANNEL_LFE             = 7,
+	SST_HSW_CHANNEL_INVALID         = 0xF,
+};
+
+/* List of supported channel maps. */
+enum sst_hsw_channel_config {
+	SST_HSW_CHANNEL_CONFIG_MONO      = 0, /* mono only. */
+	SST_HSW_CHANNEL_CONFIG_STEREO    = 1, /* L & R. */
+	SST_HSW_CHANNEL_CONFIG_2_POINT_1 = 2, /* L, R & LFE; PCM only. */
+	SST_HSW_CHANNEL_CONFIG_3_POINT_0 = 3, /* L, C & R; MP3 & AAC only. */
+	SST_HSW_CHANNEL_CONFIG_3_POINT_1 = 4, /* L, C, R & LFE; PCM only. */
+	SST_HSW_CHANNEL_CONFIG_QUATRO    = 5, /* L, R, Ls & Rs; PCM only. */
+	SST_HSW_CHANNEL_CONFIG_4_POINT_0 = 6, /* L, C, R & Cs; MP3 & AAC only. */
+	SST_HSW_CHANNEL_CONFIG_5_POINT_0 = 7, /* L, C, R, Ls & Rs. */
+	SST_HSW_CHANNEL_CONFIG_5_POINT_1 = 8, /* L, C, R, Ls, Rs & LFE. */
+	SST_HSW_CHANNEL_CONFIG_DUAL_MONO = 9, /* One channel replicated in two. */
+	SST_HSW_CHANNEL_CONFIG_INVALID,
+};
+
+/* List of supported bit depths. */
+enum sst_hsw_bitdepth {
+	SST_HSW_DEPTH_8BIT  = 8,
+	SST_HSW_DEPTH_16BIT = 16,
+	SST_HSW_DEPTH_24BIT = 24, /* Default. */
+	SST_HSW_DEPTH_32BIT = 32,
+	SST_HSW_DEPTH_INVALID = 33,
+};
+
+enum sst_hsw_module_id {
+	SST_HSW_MODULE_BASE_FW = 0x0,
+	SST_HSW_MODULE_MP3     = 0x1,
+	SST_HSW_MODULE_AAC_5_1 = 0x2,
+	SST_HSW_MODULE_AAC_2_0 = 0x3,
+	SST_HSW_MODULE_SRC     = 0x4,
+	SST_HSW_MODULE_WAVES   = 0x5,
+	SST_HSW_MODULE_DOLBY   = 0x6,
+	SST_HSW_MODULE_BOOST   = 0x7,
+	SST_HSW_MODULE_LPAL    = 0x8,
+	SST_HSW_MODULE_DTS     = 0x9,
+	SST_HSW_MODULE_PCM_CAPTURE = 0xA,
+	SST_HSW_MODULE_PCM_SYSTEM = 0xB,
+	SST_HSW_MODULE_PCM_REFERENCE = 0xC,
+	SST_HSW_MODULE_PCM = 0xD,
+	SST_HSW_MODULE_BLUETOOTH_RENDER_MODULE = 0xE,
+	SST_HSW_MODULE_BLUETOOTH_CAPTURE_MODULE = 0xF,
+	SST_HSW_MAX_MODULE_ID,
+};
+
+enum sst_hsw_performance_action {
+	SST_HSW_PERF_START = 0,
+	SST_HSW_PERF_STOP = 1,
+};
+
+/* SST firmware module info */
+struct sst_hsw_module_info {
+	u8 name[SST_HSW_MAX_INFO_SIZE];
+	u8 version[SST_HSW_MAX_INFO_SIZE];
+} __attribute__((packed));
+
+/* Module entry point */
+struct sst_hsw_module_entry {
+	enum sst_hsw_module_id module_id;
+	u32 entry_point;
+} __attribute__((packed));
+
+/* Module map - alignement matches DSP */
+struct sst_hsw_module_map {
+	u8 module_entries_count;
+	struct sst_hsw_module_entry module_entries[1];
+} __attribute__((packed));
+
+struct sst_hsw_memory_info {
+	u32 offset;
+	u32 size;
+} __attribute__((packed));
+
+struct sst_hsw_fx_enable {
+	struct sst_hsw_module_map module_map;
+	struct sst_hsw_memory_info persistent_mem;
+} __attribute__((packed));
+
+struct sst_hsw_get_fx_param {
+	u32 parameter_id;
+	u32 param_size;
+} __attribute__((packed));
+
+struct sst_hsw_perf_action {
+	u32 action;
+} __attribute__((packed));
+
+struct sst_hsw_perf_data {
+	u64 timestamp;
+	u64 cycles;
+	u64 datatime;
+} __attribute__((packed));
+
+/* FW version */
+struct sst_hsw_ipc_fw_version {
+	u8 build;
+	u8 minor;
+	u8 major;
+	u8 type;
+	u8 fw_build_hash[SST_HSW_BUILD_HASH_LENGTH];
+	u32 fw_log_providers_hash;
+} __attribute__((packed));
+
+/* Stream ring info */
+struct sst_hsw_ipc_stream_ring {
+	u32 ring_pt_address;
+	u32 num_pages;
+	u32 ring_size;
+	u32 ring_offset;
+	u32 ring_first_pfn;
+} __attribute__((packed));
+
+/* Debug Dump Log Enable Request */
+struct sst_hsw_ipc_debug_log_enable_req {
+	struct sst_hsw_ipc_stream_ring ringinfo;
+	u32 config[SST_HSW_FW_LOG_CONFIG_DWORDS];
+} __attribute__((packed));
+
+/* Debug Dump Log Reply */
+struct sst_hsw_ipc_debug_log_reply {
+	u32 log_buffer_begining;
+	u32 log_buffer_size;
+} __attribute__((packed));
+
+/* Stream glitch position */
+struct sst_hsw_ipc_stream_glitch_position {
+	u32 glitch_type;
+	u32 present_pos;
+	u32 write_pos;
+} __attribute__((packed));
+
+/* Stream get position */
+struct sst_hsw_ipc_stream_get_position {
+	u32 position;
+	u32 fw_cycle_count;
+} __attribute__((packed));
+
+/* Stream set position */
+struct sst_hsw_ipc_stream_set_position {
+	u32 position;
+	u32 end_of_buffer;
+} __attribute__((packed));
+
+/* Stream Free Request */
+struct sst_hsw_ipc_stream_free_req {
+	u8 stream_id;
+	u8 reserved[3];
+} __attribute__((packed));
+
+/* Set Volume Request */
+struct sst_hsw_ipc_volume_req {
+	u32 channel;
+	u32 target_volume;
+	u64 curve_duration;
+	u32 curve_type;
+} __attribute__((packed));
+
+/* Device Configuration Request */
+struct sst_hsw_ipc_device_config_req {
+	u32 ssp_interface;
+	u32 clock_frequency;
+	u32 mode;
+	u16 clock_divider;
+	u16 reserved;
+} __attribute__((packed));
+
+/* Audio Data formats */
+struct sst_hsw_audio_data_format_ipc {
+	u32 frequency;
+	u32 bitdepth;
+	u32 map;
+	u32 config;
+	u32 style;
+	u8 ch_num;
+	u8 valid_bit;
+	u8 reserved[2];
+} __attribute__((packed));
+
+/* Stream Allocate Request */
+struct sst_hsw_ipc_stream_alloc_req {
+	u8 path_id;
+	u8 stream_type;
+	u8 format_id;
+	u8 reserved;
+	struct sst_hsw_audio_data_format_ipc format;
+	struct sst_hsw_ipc_stream_ring ringinfo;
+	struct sst_hsw_module_map map;
+	struct sst_hsw_memory_info persistent_mem;
+	struct sst_hsw_memory_info scratch_mem;
+	u32 number_of_notifications;
+} __attribute__((packed));
+
+/* Stream Allocate Reply */
+struct sst_hsw_ipc_stream_alloc_reply {
+	u32 stream_hw_id;
+	u32 mixer_hw_id; // returns rate ????
+	u32 read_position_register_address;
+	u32 presentation_position_register_address;
+	u32 peak_meter_register_address[SST_HSW_NO_CHANNELS];
+	u32 volume_register_address[SST_HSW_NO_CHANNELS];
+} __attribute__((packed));
+
+/* Get Mixer Stream Info */
+struct sst_hsw_ipc_stream_info_reply {
+	u32 mixer_hw_id;
+	u32 peak_meter_register_address[SST_HSW_NO_CHANNELS];
+	u32 volume_register_address[SST_HSW_NO_CHANNELS];
+} __attribute__((packed));
+
+/* DX State Request */
+struct sst_hsw_ipc_dx_req {
+	u8 state;
+	u8 reserved[3];
+} __attribute__((packed));
+
+/* DX State Reply Memory Info Item */
+struct sst_hsw_ipc_dx_memory_item {
+	u32 offset;
+	u32 size;
+	u32 source;
+} __attribute__((packed));
+
+/* DX State Reply */
+struct sst_hsw_ipc_dx_reply {
+	u32 entries_no;
+	struct sst_hsw_ipc_dx_memory_item mem_info[SST_HSW_MAX_DX_REGIONS];
+} __attribute__((packed));
+
+struct sst_hsw_ipc_fw_version;
+
+/* SST Init & Free */
+struct sst_hsw *sst_hsw_new(struct device *dev, const u8 *fw, size_t fw_length,
+	u32 fw_offset);
+void sst_hsw_free(struct sst_hsw *hsw);
+int sst_hsw_fw_get_version(struct sst_hsw *hsw,
+	struct sst_hsw_ipc_fw_version *version);
+u32 create_channel_map(enum sst_hsw_channel_config config);
+
+/* Stream Mixer Controls - */
+int sst_hsw_stream_mute(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 stage_id, u32 channel);
+int sst_hsw_stream_unmute(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 stage_id, u32 channel);
+
+int sst_hsw_stream_set_volume(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 stage_id, u32 channel, u32 volume);
+int sst_hsw_stream_get_volume(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 stage_id, u32 channel, u32 *volume);
+
+int sst_hsw_stream_set_volume_curve(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u64 curve_duration,
+	enum sst_hsw_volume_curve curve);
+
+/* Global Mixer Controls - */
+int sst_hsw_mixer_mute(struct sst_hsw *hsw, u32 stage_id, u32 channel);
+int sst_hsw_mixer_unmute(struct sst_hsw *hsw, u32 stage_id, u32 channel);
+
+int sst_hsw_mixer_set_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
+	u32 volume);
+int sst_hsw_mixer_get_volume(struct sst_hsw *hsw, u32 stage_id, u32 channel,
+	u32 *volume);
+
+int sst_hsw_mixer_set_volume_curve(struct sst_hsw *hsw,
+	u64 curve_duration, enum sst_hsw_volume_curve curve);
+
+/* Stream API */
+struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id,
+	u32 (*get_write_position)(struct sst_hsw_stream *stream, void *data),
+	void *data);
+
+int sst_hsw_stream_free(struct sst_hsw *hsw, struct sst_hsw_stream *stream);
+
+/* Stream Configuration */
+int sst_hsw_stream_format(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	enum sst_hsw_stream_path_id path_id,
+	enum sst_hsw_stream_type stream_type,
+	enum sst_hsw_stream_format format_id);
+
+int sst_hsw_stream_buffer(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 ring_pt_address, u32 num_pages,
+	u32 ring_size, u32 ring_offset, u32 ring_first_pfn);
+
+int sst_hsw_stream_commit(struct sst_hsw *hsw, struct sst_hsw_stream *stream);
+
+int sst_hsw_stream_set_valid(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	u32 bits);
+int sst_hsw_stream_set_rate(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	int rate);
+int sst_hsw_stream_set_bits(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	enum sst_hsw_bitdepth bits);
+int sst_hsw_stream_set_channels(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, int channels);
+int sst_hsw_stream_set_map_config(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 map,
+	enum sst_hsw_channel_config config);
+int sst_hsw_stream_set_style(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	enum sst_hsw_interleaving style);
+int sst_hsw_stream_set_module_info(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, enum sst_hsw_module_id module_id,
+	u32 entry_point);
+int sst_hsw_stream_set_pmemory_info(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 offset, u32 size);
+int sst_hsw_stream_set_smemory_info(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 offset, u32 size);
+int sst_hsw_stream_get_hw_id(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream);
+int sst_hsw_stream_get_mixer_id(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream);
+u32 sst_hsw_stream_get_read_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream);
+u32 sst_hsw_stream_get_pointer_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream);
+u32 sst_hsw_stream_get_peak_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 channel);
+u32 sst_hsw_stream_get_vol_reg(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 channel);
+int sst_hsw_mixer_get_info(struct sst_hsw *hsw);
+
+/* Stream ALSA trigger operations */
+int sst_hsw_stream_pause(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	int wait);
+int sst_hsw_stream_resume(struct sst_hsw *hsw, struct sst_hsw_stream *stream,
+	int wait);
+int sst_hsw_stream_reset(struct sst_hsw *hsw, struct sst_hsw_stream *stream);
+
+/* Stream pointer positions */
+int sst_hsw_stream_get_read_pos(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 *position);
+int sst_hsw_stream_get_write_pos(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 *position);
+int sst_hsw_stream_set_write_position(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream, u32 stage_id, u32 position);
+int sst_hsw_get_dsp_position(struct sst_hsw *hsw,
+	struct sst_hsw_stream *stream);
+
+/* HW port config */
+int sst_hsw_device_set_config(struct sst_hsw *hsw,
+	enum sst_hsw_device_id dev, enum sst_hsw_device_mclk mclk,
+	enum sst_hsw_device_mode mode, u32 clock_divider);
+
+/* DX Config */
+int sst_hsw_dx_set_state(struct sst_hsw *hsw,
+	enum sst_hsw_dx_state state, struct sst_hsw_ipc_dx_reply *dx);
+int sst_hsw_dx_get_state(struct sst_hsw *hsw, u32 item,
+	u32 *offset, u32 *size, u32 *source);
+
+/* init */
+int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata);
+void sst_hsw_dsp_free(struct device *dev, struct sst_pdata *pdata);
+struct sst_dsp *sst_hsw_get_dsp(struct sst_hsw *hsw);
+void sst_hsw_set_scratch_module(struct sst_hsw *hsw,
+	struct sst_module *scratch);
+
+#endif

sound/soc/intel/sst-haswell-pcm.c

+/*
+ * Intel SST Haswell/Broadwell PCM Support
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <sound/compress_driver.h>
+
+#include "sst-haswell-ipc.h"
+#include "sst-dsp-priv.h"
+#include "sst-dsp.h"
+
+#define HSW_PCM_COUNT		6
+#define HSW_VOLUME_MAX		0x7FFFFFFF	/* 0dB */
+
+/* simple volume table */
+static const u32 volume_map[] = {
+	HSW_VOLUME_MAX >> 30,
+	HSW_VOLUME_MAX >> 29,
+	HSW_VOLUME_MAX >> 28,
+	HSW_VOLUME_MAX >> 27,
+	HSW_VOLUME_MAX >> 26,
+	HSW_VOLUME_MAX >> 25,
+	HSW_VOLUME_MAX >> 24,
+	HSW_VOLUME_MAX >> 23,
+	HSW_VOLUME_MAX >> 22,
+	HSW_VOLUME_MAX >> 21,
+	HSW_VOLUME_MAX >> 20,
+	HSW_VOLUME_MAX >> 19,
+	HSW_VOLUME_MAX >> 18,
+	HSW_VOLUME_MAX >> 17,
+	HSW_VOLUME_MAX >> 16,
+	HSW_VOLUME_MAX >> 15,
+	HSW_VOLUME_MAX >> 14,
+	HSW_VOLUME_MAX >> 13,
+	HSW_VOLUME_MAX >> 12,
+	HSW_VOLUME_MAX >> 11,
+	HSW_VOLUME_MAX >> 10,
+	HSW_VOLUME_MAX >> 9,
+	HSW_VOLUME_MAX >> 8,
+	HSW_VOLUME_MAX >> 7,
+	HSW_VOLUME_MAX >> 6,
+	HSW_VOLUME_MAX >> 5,
+	HSW_VOLUME_MAX >> 4,
+	HSW_VOLUME_MAX >> 3,
+	HSW_VOLUME_MAX >> 2,
+	HSW_VOLUME_MAX >> 1,
+	HSW_VOLUME_MAX >> 0,
+};
+
+#define HSW_PCM_PERIODS_MAX	64
+#define HSW_PCM_PERIODS_MIN	2
+
+static const struct snd_pcm_hardware hsw_pcm_hardware = {
+	.info			= SNDRV_PCM_INFO_MMAP |
+				  SNDRV_PCM_INFO_MMAP_VALID |
+				  SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_PAUSE |
+				  SNDRV_PCM_INFO_RESUME |
+				  SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
+	.formats		= SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE |
+				  SNDRV_PCM_FMTBIT_S32_LE,
+	.period_bytes_min	= PAGE_SIZE,
+	.period_bytes_max	= (HSW_PCM_PERIODS_MAX / HSW_PCM_PERIODS_MIN) * PAGE_SIZE,
+	.periods_min		= HSW_PCM_PERIODS_MIN,
+	.periods_max		= HSW_PCM_PERIODS_MAX,
+	.buffer_bytes_max	= HSW_PCM_PERIODS_MAX * PAGE_SIZE,
+};
+
+/* private data for each PCM DSP stream */
+struct hsw_pcm_data {
+	int dai_id;
+	struct sst_hsw_stream *stream;
+	u32 volume[2];
+	struct snd_pcm_substream *substream;
+	struct snd_compr_stream *cstream;
+	unsigned int wpos;
+	struct mutex mutex;
+};
+
+/* private data for the driver */
+struct hsw_priv_data {
+	/* runtime DSP */
+	struct sst_hsw *hsw;
+
+	/* page tables */
+	unsigned char *pcm_pg[HSW_PCM_COUNT][2];
+
+	/* DAI data */
+	struct hsw_pcm_data pcm[HSW_PCM_COUNT];
+};
+
+static inline u32 hsw_mixer_to_ipc(unsigned int value)
+{
+	if (value >= ARRAY_SIZE(volume_map))
+		return volume_map[0];
+	else
+		return volume_map[value];
+}
+
+static inline unsigned int hsw_ipc_to_mixer(u32 value)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(volume_map); i++) {
+		if (volume_map[i] >= value)
+			return i;
+	}
+
+	return i - 1;
+}
+
+static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(platform);
+	struct hsw_pcm_data *pcm_data = &pdata->pcm[mc->reg];
+	struct sst_hsw *hsw = pdata->hsw;
+	u32 volume;
+
+	mutex_lock(&pcm_data->mutex);
+
+	if (!pcm_data->stream) {
+		pcm_data->volume[0] =
+			hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
+		pcm_data->volume[1] =
+			hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
+		mutex_unlock(&pcm_data->mutex);
+		return 0;
+	}
+
+	if (ucontrol->value.integer.value[0] ==
+		ucontrol->value.integer.value[1]) {
+		volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
+		sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 2, volume);
+	} else {
+		volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
+		sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 0, volume);
+		volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
+		sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 1, volume);
+	}
+
+	mutex_unlock(&pcm_data->mutex);
+	return 0;
+}
+
+static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(platform);
+	struct hsw_pcm_data *pcm_data = &pdata->pcm[mc->reg];
+	struct sst_hsw *hsw = pdata->hsw;
+	u32 volume;
+
+	mutex_lock(&pcm_data->mutex);
+
+	if (!pcm_data->stream) {
+		ucontrol->value.integer.value[0] =
+			hsw_ipc_to_mixer(pcm_data->volume[0]);
+		ucontrol->value.integer.value[1] =
+			hsw_ipc_to_mixer(pcm_data->volume[1]);
+		mutex_unlock(&pcm_data->mutex);
+		return 0;
+	}
+
+	sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 0, &volume);
+	ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
+	sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 1, &volume);
+	ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
+	mutex_unlock(&pcm_data->mutex);
+
+	return 0;
+}
+
+static int hsw_volume_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
+	struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
+	struct sst_hsw *hsw = pdata->hsw;
+	u32 volume;
+
+	if (ucontrol->value.integer.value[0] ==
+		ucontrol->value.integer.value[1]) {
+
+		volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
+		sst_hsw_mixer_set_volume(hsw, 0, 2, volume);
+
+	} else {
+		volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
+		sst_hsw_mixer_set_volume(hsw, 0, 0, volume);
+
+		volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
+		sst_hsw_mixer_set_volume(hsw, 0, 1, volume);
+	}
+
+	return 0;
+}
+
+static int hsw_volume_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_platform *platform = snd_kcontrol_chip(kcontrol);
+	struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
+	struct sst_hsw *hsw = pdata->hsw;
+	unsigned int volume = 0;
+
+	sst_hsw_mixer_get_volume(hsw, 0, 0, &volume);
+	ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
+
+	sst_hsw_mixer_get_volume(hsw, 0, 1, &volume);
+	ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
+
+	return 0;
+}
+
+/* TLV used by both global and stream volumes */
+static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1);
+
+/* System Pin has no volume control */
+static const struct snd_kcontrol_new hsw_volume_controls[] = {
+	/* Global DSP volume */
+	SOC_DOUBLE_EXT_TLV("Master Playback Volume", 0, 0, 8,
+		ARRAY_SIZE(volume_map) -1, 0,
+		hsw_volume_get, hsw_volume_put, hsw_vol_tlv),
+	/* Offload 0 volume */
+	SOC_DOUBLE_EXT_TLV("Media0 Playback Volume", 1, 0, 8,
+		ARRAY_SIZE(volume_map), 0,
+		hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
+	/* Offload 1 volume */
+	SOC_DOUBLE_EXT_TLV("Media1 Playback Volume", 2, 0, 8,
+		ARRAY_SIZE(volume_map), 0,
+		hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
+	/* Loopback volume */
+	SOC_DOUBLE_EXT_TLV("Loopback Capture Volume", 3, 0, 8,
+		ARRAY_SIZE(volume_map), 0,
+		hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
+	/* Mic Capture volume */
+	SOC_DOUBLE_EXT_TLV("Mic Capture Volume", 4, 0, 8,
+		ARRAY_SIZE(volume_map), 0,
+		hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
+};
+
+/* Create DMA buffer page table for DSP */
+static int create_adsp_page_table(struct hsw_priv_data *pdata,
+	struct snd_soc_pcm_runtime *rtd,
+	unsigned char *dma_area, size_t size, int pcm, int stream)
+{
+	int i, pages;
+
+	if (size % PAGE_SIZE)
+		pages = (size / PAGE_SIZE) + 1;
+	else
+		pages = size / PAGE_SIZE;
+
+	dev_dbg(rtd->dev, "generating page table for %p size 0x%zu pages %d\n",
+		dma_area, size, pages);
+
+	for (i = 0; i < pages; i++) {
+		u32 idx = (((i << 2) + i)) >> 1;
+		u32 pfn = (virt_to_phys(dma_area + i * PAGE_SIZE)) >> PAGE_SHIFT;
+		u32 *pg_table;
+
+		dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
+
+		pg_table = (u32*)(pdata->pcm_pg[pcm][stream] + idx);
+
+		if (i & 1)
+			*pg_table |= (pfn << 4);
+		else
+			*pg_table |= pfn;
+	}
+
+	return 0;
+}
+
+/* this may get called several times by oss emulation */
+static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_hsw *hsw = pdata->hsw;
+	struct sst_module *module_data;
+	struct sst_dsp *dsp;
+	enum sst_hsw_stream_type stream_type;
+	enum sst_hsw_stream_path_id path_id;
+	u32 rate, bits, map, pages, module_id;
+	u8 channels;
+	int ret;
+
+	/* stream direction */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
+	else
+		path_id = SST_HSW_STREAM_PATH_SSP0_IN;
+
+	/* DSP stream type depends on DAI ID */
+	switch (rtd->cpu_dai->id) {
+	case 0:
+		stream_type = SST_HSW_STREAM_TYPE_SYSTEM;
+		module_id = SST_HSW_MODULE_PCM_SYSTEM;
+		break;
+	case 1:
+	case 2:
+		stream_type = SST_HSW_STREAM_TYPE_RENDER;
+		module_id = SST_HSW_MODULE_PCM;
+		break;
+	case 3:
+		/* path ID needs to be OUT for loopback */
+		stream_type = SST_HSW_STREAM_TYPE_LOOPBACK;
+		path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
+		module_id = SST_HSW_MODULE_PCM_REFERENCE;
+		break;
+	case 4:
+		stream_type = SST_HSW_STREAM_TYPE_CAPTURE;
+		module_id = SST_HSW_MODULE_PCM_CAPTURE;
+		break;
+	default:
+		dev_err(rtd->dev, "error: invalid DAI ID %d\n",
+			rtd->cpu_dai->id);
+		return -EINVAL;
+	};
+
+	ret = sst_hsw_stream_format(hsw, pcm_data->stream,
+		path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT);
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: failed to set format %d\n", ret);
+		return ret;
+	}
+
+	rate = params_rate(params);
+	ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate);
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: could not set rate %d\n", rate);
+		return ret;
+	}
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		bits = SST_HSW_DEPTH_16BIT;
+		sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16);
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		bits = SST_HSW_DEPTH_24BIT;
+		sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32);
+		break;
+	default:
+		dev_err(rtd->dev, "error: invalid format %d\n",
+			params_format(params));
+		return -EINVAL;
+	}
+
+	ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits);
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: could not set bits %d\n", bits);
+		return ret;
+	}
+
+	/* we only support stereo atm */
+	channels = params_channels(params);
+	if (channels != 2) {
+		dev_err(rtd->dev, "error: invalid channels %d\n", channels);
+		return -EINVAL;
+	}
+
+	map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO);
+	sst_hsw_stream_set_map_config(hsw, pcm_data->stream,
+			map, SST_HSW_CHANNEL_CONFIG_STEREO);
+
+	ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels);
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: could not set channels %d\n",
+			channels);
+		return ret;
+	}
+
+	ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: could not allocate %d bytes for PCM %d\n",
+			params_buffer_bytes(params), ret);
+		return ret;
+	}
+
+	ret = create_adsp_page_table(pdata, rtd, runtime->dma_area,
+		runtime->dma_bytes, rtd->cpu_dai->id, substream->stream);
+	if (ret < 0)
+		return ret;
+
+	sst_hsw_stream_set_style(hsw, pcm_data->stream,
+		SST_HSW_INTERLEAVING_PER_CHANNEL);
+
+	if (runtime->dma_bytes % PAGE_SIZE)
+		pages = (runtime->dma_bytes / PAGE_SIZE) + 1;
+	else
+		pages = runtime->dma_bytes / PAGE_SIZE;
+
+	ret = sst_hsw_stream_buffer(hsw, pcm_data->stream,
+		virt_to_phys(pdata->pcm_pg[rtd->cpu_dai->id][substream->stream]),
+		pages, runtime->dma_bytes, 0,
+		(u32)(virt_to_phys(runtime->dma_area) >> PAGE_SHIFT));
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret);
+		return ret;
+	}
+
+	dsp = sst_hsw_get_dsp(hsw);
+
+	module_data = sst_module_get_from_id(dsp, module_id);
+	if (module_data == NULL) {
+		dev_err(rtd->dev, "error: failed to get module config\n");
+		return -EINVAL;
+	}
+
+	/* we use hardcoded memory offsets atm, will be updated for new FW */
+	if (stream_type == SST_HSW_STREAM_TYPE_CAPTURE) {
+		sst_hsw_stream_set_module_info(hsw, pcm_data->stream,
+			SST_HSW_MODULE_PCM_CAPTURE, module_data->entry);
+		sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream,
+			0x449400, 0x4000);
+		sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream,
+			0x400000, 0);
+	} else { /* stream_type == SST_HSW_STREAM_TYPE_SYSTEM */
+		sst_hsw_stream_set_module_info(hsw, pcm_data->stream,
+			SST_HSW_MODULE_PCM_SYSTEM, module_data->entry);
+
+		sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream,
+			module_data->offset, module_data->size);
+		sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream,
+			0x44d400, 0x3800);
+
+		sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream,
+			module_data->offset, module_data->size);
+		sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream,
+			0x400000, 0);
+	}
+
+	ret = sst_hsw_stream_commit(hsw, pcm_data->stream);
+	if (ret < 0) {
+		dev_err(rtd->dev, "error: failed to commit stream %d\n", ret);
+		return ret;
+	}
+
+	ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1);
+	if (ret < 0)
+		dev_err(rtd->dev, "error: failed to pause %d\n", ret);
+
+	return 0;
+}
+
+static int hsw_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	snd_pcm_lib_free_pages(substream);
+	return 0;
+}
+
+static int hsw_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_hsw *hsw = pdata->hsw;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		sst_hsw_stream_resume(hsw, pcm_data->stream, 0);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		sst_hsw_stream_pause(hsw, pcm_data->stream, 0);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data)
+{
+	struct hsw_pcm_data *pcm_data = data;
+	struct snd_pcm_substream *substream = pcm_data->substream;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	u32 pos;
+
+	pos = frames_to_bytes(runtime,
+		(runtime->control->appl_ptr % runtime->buffer_size));
+
+	dev_dbg(rtd->dev, "PCM: App pointer %d bytes\n", pos);
+
+	/* let alsa know we have play a period */
+	snd_pcm_period_elapsed(substream);
+	return pos;
+}
+
+static snd_pcm_uframes_t hsw_pcm_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_hsw *hsw = pdata->hsw;
+	snd_pcm_uframes_t offset;
+
+	offset = bytes_to_frames(runtime,
+		sst_hsw_get_dsp_position(hsw, pcm_data->stream));
+
+	dev_dbg(rtd->dev, "PCM: DMA pointer %zu bytes\n",
+		frames_to_bytes(runtime, (u32)offset));
+	return offset;
+}
+
+static int hsw_pcm_open(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct hsw_pcm_data *pcm_data;
+	struct sst_hsw *hsw = pdata->hsw;
+
+	pcm_data = &pdata->pcm[rtd->cpu_dai->id];
+
+	mutex_lock(&pcm_data->mutex);
+
+	snd_soc_pcm_set_drvdata(rtd, pcm_data);
+	pcm_data->substream = substream;
+
+	snd_soc_set_runtime_hwparams(substream, &hsw_pcm_hardware);
+
+	pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id,
+		hsw_notify_pointer, pcm_data);
+	if (pcm_data->stream == NULL) {
+		dev_err(rtd->dev, "error: failed to create stream\n");
+		mutex_unlock(&pcm_data->mutex);
+		return -EINVAL;
+	}
+
+	/* Set previous saved volume */
+	sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
+			0, pcm_data->volume[0]);
+	sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
+			1, pcm_data->volume[1]);
+
+	mutex_unlock(&pcm_data->mutex);
+	return 0;
+}
+
+static int hsw_pcm_close(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct hsw_priv_data *pdata =
+		snd_soc_platform_get_drvdata(rtd->platform);
+	struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd);
+	struct sst_hsw *hsw = pdata->hsw;
+	int ret;
+
+	mutex_lock(&pcm_data->mutex);
+	ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
+	if (ret < 0) {
+		dev_dbg(rtd->dev, "error: reset stream failed %d\n", ret);
+		goto out;
+	}
+
+	ret = sst_hsw_stream_free(hsw, pcm_data->stream);
+	if (ret < 0) {
+		dev_dbg(rtd->dev, "error: free stream failed %d\n", ret);
+		goto out;
+	}
+	pcm_data->stream = NULL;
+
+out:
+	mutex_unlock(&pcm_data->mutex);
+	return ret;
+}
+
+static struct snd_pcm_ops hsw_pcm_ops = {
+	.open		= hsw_pcm_open,
+	.close		= hsw_pcm_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= hsw_pcm_hw_params,
+	.hw_free	= hsw_pcm_hw_free,
+	.trigger	= hsw_pcm_trigger,
+	.pointer	= hsw_pcm_pointer,
+	.mmap		= snd_pcm_lib_default_mmap,
+};
+
+static void hsw_pcm_free(struct snd_pcm *pcm)
+{
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static int hsw_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_pcm *pcm = rtd->pcm;
+	int ret = 0;
+
+	ret = dma_coerce_mask_and_coherent(rtd->card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
+			pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+		ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
+			SNDRV_DMA_TYPE_DEV,
+			rtd->card->dev,
+			hsw_pcm_hardware.buffer_bytes_max,
+			hsw_pcm_hardware.buffer_bytes_max);
+		if (ret) {
+			dev_err(rtd->dev, "dma buffer allocation failed %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+#define HSW_FORMATS \
+	(SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE |\
+	 SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver hsw_dais[] = {
+	{
+		.name  = "System Pin",
+		.playback = {
+			.stream_name = "System Playback",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,
+		},
+	},
+	{
+		/* PCM */
+		.name  = "Offload0 Pin",
+		.playback = {
+			.stream_name = "Offload0 Playback",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = HSW_FORMATS,
+		},
+	},
+	{
+		/* PCM */
+		.name  = "Offload1 Pin",
+		.playback = {
+			.stream_name = "Offload1 Playback",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = HSW_FORMATS,
+		},
+	},
+	{
+		.name  = "Loopback Pin",
+		.capture = {
+			.stream_name = "Loopback Capture",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = HSW_FORMATS,
+		},
+	},
+	{
+		.name  = "Capture Pin",
+		.capture = {
+			.stream_name = "Analog Capture",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_192000,
+			.formats = HSW_FORMATS,
+		},
+	},
+};
+
+static const struct snd_soc_dapm_widget widgets[] = {
+
+	/* Backend DAIs  */
+	SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
+
+	/* Global Playback Mixer */
+	SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route graph[] = {
+
+	/* Playback Mixer */
+	{"Playback VMixer", NULL, "System Playback"},
+	{"Playback VMixer", NULL, "Offload0 Playback"},
+	{"Playback VMixer", NULL, "Offload1 Playback"},
+
+	{"SSP0 CODEC OUT", NULL, "Playback VMixer"},
+
+	{"Analog Capture", NULL, "SSP0 CODEC IN"},
+};
+
+static int hsw_pcm_probe(struct snd_soc_platform *platform)
+{
+	struct sst_pdata *pdata = dev_get_platdata(platform->dev);
+	struct hsw_priv_data *priv_data;
+	int i;
+
+	if (!pdata)
+		return -ENODEV;
+
+	priv_data = devm_kzalloc(platform->dev, sizeof(*priv_data), GFP_KERNEL);
+	priv_data->hsw = pdata->dsp;
+	snd_soc_platform_set_drvdata(platform, priv_data);
+
+	/* allocate DSP buffer page tables */
+	for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
+
+		mutex_init(&priv_data->pcm[i].mutex);
+
+		/* playback */
+		if (hsw_dais[i].playback.channels_min) {
+			priv_data->pcm_pg[i][0] = kzalloc(PAGE_SIZE, GFP_DMA);
+			if (priv_data->pcm_pg[i][0] == NULL)
+				goto err;
+		}
+
+		/* capture */
+		if (hsw_dais[i].capture.channels_min) {
+			priv_data->pcm_pg[i][1] = kzalloc(PAGE_SIZE, GFP_DMA);
+			if (priv_data->pcm_pg[i][1] == NULL)
+				goto err;
+		}
+	}
+
+	return 0;
+
+err:
+	for (;i >= 0; i--) {
+		if (hsw_dais[i].playback.channels_min)
+			kfree(priv_data->pcm_pg[i][0]);
+		if (hsw_dais[i].capture.channels_min)
+			kfree(priv_data->pcm_pg[i][1]);
+	}
+	return -ENOMEM;
+}
+
+static int hsw_pcm_remove(struct snd_soc_platform *platform)
+{
+	struct hsw_priv_data *priv_data =
+		snd_soc_platform_get_drvdata(platform);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
+		if (hsw_dais[i].playback.channels_min)
+			kfree(priv_data->pcm_pg[i][0]);
+		if (hsw_dais[i].capture.channels_min)
+			kfree(priv_data->pcm_pg[i][1]);
+	}
+
+	return 0;
+}
+
+static struct snd_soc_platform_driver hsw_soc_platform = {
+	.probe		= hsw_pcm_probe,
+	.remove		= hsw_pcm_remove,
+	.ops		= &hsw_pcm_ops,
+	.pcm_new	= hsw_pcm_new,
+	.pcm_free	= hsw_pcm_free,
+	.controls	= hsw_volume_controls,
+	.num_controls	= ARRAY_SIZE(hsw_volume_controls),
+	.dapm_widgets	= widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(widgets),
+	.dapm_routes	= graph,
+	.num_dapm_routes	= ARRAY_SIZE(graph),
+};
+
+static const struct snd_soc_component_driver hsw_dai_component = {
+	.name		= "haswell-dai",
+};
+
+static int hsw_pcm_dev_probe(struct platform_device *pdev)
+{
+	struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
+	int ret;
+
+	ret = sst_hsw_dsp_init(&pdev->dev, sst_pdata);
+	if (ret < 0)
+		return -ENODEV;
+
+	ret = snd_soc_register_platform(&pdev->dev, &hsw_soc_platform);
+	if (ret < 0)
+		goto err_plat;
+
+	ret = snd_soc_register_component(&pdev->dev, &hsw_dai_component,
+		hsw_dais, ARRAY_SIZE(hsw_dais));
+	if (ret < 0)
+		goto err_comp;
+
+	return 0;
+
+err_comp:
+	snd_soc_unregister_platform(&pdev->dev);
+err_plat:
+	sst_hsw_dsp_free(&pdev->dev, sst_pdata);
+	return 0;
+}
+
+static int hsw_pcm_dev_remove(struct platform_device *pdev)
+{
+	struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
+
+	snd_soc_unregister_platform(&pdev->dev);
+	snd_soc_unregister_component(&pdev->dev);
+	sst_hsw_dsp_free(&pdev->dev, sst_pdata);
+
+	return 0;
+}
+
+static struct platform_driver hsw_pcm_driver = {
+	.driver = {
+		.name = "haswell-pcm-audio",
+		.owner = THIS_MODULE,
+	},
+
+	.probe = hsw_pcm_dev_probe,
+	.remove = hsw_pcm_dev_remove,
+};
+module_platform_driver(hsw_pcm_driver);
+
+MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
+MODULE_DESCRIPTION("Haswell/Lynxpoint + Broadwell/Wildcatpoint PCM");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:haswell-pcm-audio");

sound/soc/intel/sst_dsp.h → sound/soc/intel/sst-mfld-dsp.h

-#ifndef __SST_DSP_H__
-#define __SST_DSP_H__
+#ifndef __SST_MFLD_DSP_H__
+#define __SST_MFLD_DSP_H__
 /*
- *  sst_dsp.h - Intel SST Driver for audio engine
+ *  sst_mfld_dsp.h - Intel SST Driver for audio engine
  *
  *  Copyright (C) 2008-12 Intel Corporation
  *  Authors:	Vinod Koul <vinod.koul@linux.intel.com>
@@ -131,4 +131,4 @@ struct snd_sst_params {
 	struct snd_sst_alloc_params_ext aparams;
 };
 
-#endif /* __SST_DSP_H__ */
+#endif /* __SST_MFLD_DSP_H__ */

sound/soc/intel/sst_platform.c → sound/soc/intel/sst-mfld-platform.c

 /*
- *  sst_platform.c - Intel MID Platform driver
+ *  sst_mfld_platform.c - Intel MID Platform driver
  *
  *  Copyright (C) 2010-2013 Intel Corp
  *  Author: Vinod Koul <vinod.koul@intel.com>
@@ -33,7 +33,7 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/compress_driver.h>
-#include "sst_platform.h"
+#include "sst-mfld-platform.h"
 
 static struct sst_device *sst;
 static DEFINE_MUTEX(sst_lock);
@@ -709,7 +709,7 @@ static int sst_platform_remove(struct platform_device *pdev)
 
 static struct platform_driver sst_platform_driver = {
 	.driver		= {
-		.name		= "sst-platform",
+		.name		= "sst-mfld-platform",
 		.owner		= THIS_MODULE,
 	},
 	.probe		= sst_platform_probe,
@@ -722,4 +722,4 @@ MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:sst-platform");
+MODULE_ALIAS("platform:sst-mfld-platform");

sound/soc/intel/sst_platform.h → sound/soc/intel/sst-mfld-platform.h

 /*
- *  sst_platform.h - Intel MID Platform driver header file
+ *  sst_mfld_platform.h - Intel MID Platform driver header file
  *
  *  Copyright (C) 2010 Intel Corp
  *  Author: Vinod Koul <vinod.koul@intel.com>
@@ -27,7 +27,7 @@
 #ifndef __SST_PLATFORMDRV_H__
 #define __SST_PLATFORMDRV_H__
 
-#include "sst_dsp.h"
+#include "sst-mfld-dsp.h"
 
 #define SST_MONO		1
 #define SST_STEREO		2

sound/soc/omap/ams-delta.c

@@ -196,13 +196,11 @@ static int ams_delta_get_audio_mode(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static const struct soc_enum ams_delta_audio_enum[] = {
-	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ams_delta_audio_mode),
-						ams_delta_audio_mode),
-};
+static const SOC_ENUM_SINGLE_EXT_DECL(ams_delta_audio_enum,
+				      ams_delta_audio_mode);
 
 static const struct snd_kcontrol_new ams_delta_audio_controls[] = {
-	SOC_ENUM_EXT("Audio Mode", ams_delta_audio_enum[0],
+	SOC_ENUM_EXT("Audio Mode", ams_delta_audio_enum,
 			ams_delta_get_audio_mode, ams_delta_set_audio_mode),
 };
 

sound/soc/pxa/corgi.c

@@ -101,14 +101,9 @@ static void corgi_ext_control(struct snd_soc_dapm_context *dapm)
 static int corgi_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_codec *codec = rtd->codec;
-
-	mutex_lock(&codec->mutex);
 
 	/* check the jack status at stream startup */
-	corgi_ext_control(&codec->dapm);
-
-	mutex_unlock(&codec->mutex);
+	corgi_ext_control(&rtd->card->dapm);
 
 	return 0;
 }

sound/soc/pxa/e740_wm9705.c

@@ -103,11 +103,6 @@ static int e740_ac97_init(struct snd_soc_pcm_runtime *rtd)
 	snd_soc_dapm_nc_pin(dapm, "PCBEEP");
 	snd_soc_dapm_nc_pin(dapm, "MIC2");
 
-	snd_soc_dapm_new_controls(dapm, e740_dapm_widgets,
-					ARRAY_SIZE(e740_dapm_widgets));
-
-	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
 	return 0;
 }
 
@@ -136,6 +131,11 @@ static struct snd_soc_card e740 = {
 	.owner = THIS_MODULE,
 	.dai_link = e740_dai,
 	.num_links = ARRAY_SIZE(e740_dai),
+
+	.dapm_widgets = e740_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
 static struct gpio e740_audio_gpios[] = {

sound/soc/pxa/e750_wm9705.c

@@ -85,11 +85,6 @@ static int e750_ac97_init(struct snd_soc_pcm_runtime *rtd)
 	snd_soc_dapm_nc_pin(dapm, "PCBEEP");
 	snd_soc_dapm_nc_pin(dapm, "MIC2");
 
-	snd_soc_dapm_new_controls(dapm, e750_dapm_widgets,
-					ARRAY_SIZE(e750_dapm_widgets));
-
-	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
 	return 0;
 }
 
@@ -119,6 +114,11 @@ static struct snd_soc_card e750 = {
 	.owner = THIS_MODULE,
 	.dai_link = e750_dai,
 	.num_links = ARRAY_SIZE(e750_dai),
+
+	.dapm_widgets = e750_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
 static struct gpio e750_audio_gpios[] = {

sound/soc/pxa/e800_wm9712.c

@@ -71,19 +71,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{"MIC2", NULL, "Mic (Internal2)"},
 };
 
-static int e800_ac97_init(struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_soc_codec *codec = rtd->codec;
-	struct snd_soc_dapm_context *dapm = &codec->dapm;
-
-	snd_soc_dapm_new_controls(dapm, e800_dapm_widgets,
-					ARRAY_SIZE(e800_dapm_widgets));
-
-	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
-	return 0;
-}
-
 static struct snd_soc_dai_link e800_dai[] = {
 	{
 		.name = "AC97",
@@ -92,7 +79,6 @@ static struct snd_soc_dai_link e800_dai[] = {
 		.codec_dai_name = "wm9712-hifi",
 		.platform_name = "pxa-pcm-audio",
 		.codec_name = "wm9712-codec",
-		.init = e800_ac97_init,
 	},
 	{
 		.name = "AC97 Aux",
@@ -109,6 +95,11 @@ static struct snd_soc_card e800 = {
 	.owner = THIS_MODULE,
 	.dai_link = e800_dai,
 	.num_links = ARRAY_SIZE(e800_dai),
+
+	.dapm_widgets = e800_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
 static struct gpio e800_audio_gpios[] = {

sound/soc/pxa/magician.c

@@ -77,13 +77,9 @@ static int magician_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	magician_ext_control(codec);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }
 

sound/soc/pxa/mioa701_wm9713.c

@@ -127,16 +127,8 @@ static const struct snd_soc_dapm_route audio_map[] = {
 static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
-	struct snd_soc_dapm_context *dapm = &codec->dapm;
 	unsigned short reg;
 
-	/* Add mioa701 specific widgets */
-	snd_soc_dapm_new_controls(dapm, mioa701_dapm_widgets,
-				  ARRAY_SIZE(mioa701_dapm_widgets));
-
-	/* Set up mioa701 specific audio path audio_mapnects */
-	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
 	/* Prepare GPIO8 for rear speaker amplifier */
 	reg = codec->driver->read(codec, AC97_GPIO_CFG);
 	codec->driver->write(codec, AC97_GPIO_CFG, reg | 0x0100);
@@ -145,12 +137,6 @@ static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd)
 	reg = codec->driver->read(codec, AC97_3D_CONTROL);
 	codec->driver->write(codec, AC97_3D_CONTROL, reg | 0xc000);
 
-	snd_soc_dapm_enable_pin(dapm, "Front Speaker");
-	snd_soc_dapm_enable_pin(dapm, "Rear Speaker");
-	snd_soc_dapm_enable_pin(dapm, "Front Mic");
-	snd_soc_dapm_enable_pin(dapm, "GSM Line In");
-	snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
-
 	return 0;
 }
 
@@ -183,6 +169,11 @@ static struct snd_soc_card mioa701 = {
 	.owner = THIS_MODULE,
 	.dai_link = mioa701_dai,
 	.num_links = ARRAY_SIZE(mioa701_dai),
+
+	.dapm_widgets = mioa701_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(mioa701_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
 static int mioa701_wm9713_probe(struct platform_device *pdev)

sound/soc/pxa/poodle.c

@@ -74,14 +74,9 @@ static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
 static int poodle_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_codec *codec = rtd->codec;
-
-	mutex_lock(&codec->mutex);
 
 	/* check the jack status at stream startup */
-	poodle_ext_control(&codec->dapm);
-
-	mutex_unlock(&codec->mutex);
+	poodle_ext_control(&rtd->card->dapm);
 
 	return 0;
 }

sound/soc/pxa/spitz.c

@@ -111,14 +111,9 @@ static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
 static int spitz_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_codec *codec = rtd->codec;
-
-	mutex_lock(&codec->mutex);
 
 	/* check the jack status at stream startup */
-	spitz_ext_control(&codec->dapm);
-
-	mutex_unlock(&codec->mutex);
+	spitz_ext_control(&rtd->card->dapm);
 
 	return 0;
 }

sound/soc/pxa/tosa.c

@@ -84,13 +84,9 @@ static int tosa_startup(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 
-	mutex_lock(&codec->mutex);
-
 	/* check the jack status at stream startup */
 	tosa_ext_control(codec);
 
-	mutex_unlock(&codec->mutex);
-
 	return 0;
 }
 

sound/soc/pxa/zylonite.c

@@ -71,22 +71,10 @@ static const struct snd_soc_dapm_route audio_map[] = {
 
 static int zylonite_wm9713_init(struct snd_soc_pcm_runtime *rtd)
 {
-	struct snd_soc_codec *codec = rtd->codec;
-	struct snd_soc_dapm_context *dapm = &codec->dapm;
-
 	if (clk_pout)
 		snd_soc_dai_set_pll(rtd->codec_dai, 0, 0,
 				    clk_get_rate(pout), 0);
 
-	snd_soc_dapm_new_controls(dapm, zylonite_dapm_widgets,
-				  ARRAY_SIZE(zylonite_dapm_widgets));
-
-	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
-	/* Static setup for now */
-	snd_soc_dapm_enable_pin(dapm, "Headphone");
-	snd_soc_dapm_enable_pin(dapm, "Headset Earpiece");
-
 	return 0;
 }
 
@@ -256,6 +244,11 @@ static struct snd_soc_card zylonite = {
 	.resume_pre = &zylonite_resume_pre,
 	.dai_link = zylonite_dai,
 	.num_links = ARRAY_SIZE(zylonite_dai),
+
+	.dapm_widgets = zylonite_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(zylonite_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
 static struct platform_device *zylonite_snd_ac97_device;

sound/soc/sh/rcar/Makefile

-snd-soc-rcar-objs	:= core.o gen.o scu.o adg.o ssi.o
+snd-soc-rcar-objs	:= core.o gen.o src.o adg.o ssi.o
 obj-$(CONFIG_SND_SOC_RCAR)	+= snd-soc-rcar.o
\ No newline at end of file

sound/soc/sh/rcar/adg.c

@@ -25,15 +25,165 @@ struct rsnd_adg {
 };
 
 #define for_each_rsnd_clk(pos, adg, i)		\
-	for (i = 0, (pos) = adg->clk[i];	\
-	     i < CLKMAX;			\
-	     i++, (pos) = adg->clk[i])
+	for (i = 0;				\
+	     (i < CLKMAX) &&			\
+	     ((pos) = adg->clk[i]);		\
+	     i++)
 #define rsnd_priv_to_adg(priv) ((struct rsnd_adg *)(priv)->adg)
 
-static int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
-					 struct rsnd_mod *mod,
-					 unsigned int src_rate,
-					 unsigned int dst_rate)
+
+static u32 rsnd_adg_ssi_ws_timing_gen2(struct rsnd_dai_stream *io)
+{
+	struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io);
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	int id = rsnd_mod_id(mod);
+	int ws = id;
+
+	if (rsnd_ssi_is_pin_sharing(rsnd_ssi_mod_get(priv, id))) {
+		switch (id) {
+		case 1:
+		case 2:
+			ws = 0;
+			break;
+		case 4:
+			ws = 3;
+			break;
+		case 8:
+			ws = 7;
+			break;
+		}
+	}
+
+	return (0x6 + ws) << 8;
+}
+
+static int rsnd_adg_set_src_timsel_gen2(struct rsnd_dai *rdai,
+					struct rsnd_mod *mod,
+					struct rsnd_dai_stream *io,
+					u32 timsel)
+{
+	int is_play = rsnd_dai_is_play(rdai, io);
+	int id = rsnd_mod_id(mod);
+	int shift = (id % 2) ? 16 : 0;
+	u32 mask, ws;
+	u32 in, out;
+
+	ws = rsnd_adg_ssi_ws_timing_gen2(io);
+
+	in  = (is_play) ? timsel : ws;
+	out = (is_play) ? ws     : timsel;
+
+	in   = in	<< shift;
+	out  = out	<< shift;
+	mask = 0xffff	<< shift;
+
+	switch (id / 2) {
+	case 0:
+		rsnd_mod_bset(mod, SRCIN_TIMSEL0,  mask, in);
+		rsnd_mod_bset(mod, SRCOUT_TIMSEL0, mask, out);
+		break;
+	case 1:
+		rsnd_mod_bset(mod, SRCIN_TIMSEL1,  mask, in);
+		rsnd_mod_bset(mod, SRCOUT_TIMSEL1, mask, out);
+		break;
+	case 2:
+		rsnd_mod_bset(mod, SRCIN_TIMSEL2,  mask, in);
+		rsnd_mod_bset(mod, SRCOUT_TIMSEL2, mask, out);
+		break;
+	case 3:
+		rsnd_mod_bset(mod, SRCIN_TIMSEL3,  mask, in);
+		rsnd_mod_bset(mod, SRCOUT_TIMSEL3, mask, out);
+		break;
+	case 4:
+		rsnd_mod_bset(mod, SRCIN_TIMSEL4,  mask, in);
+		rsnd_mod_bset(mod, SRCOUT_TIMSEL4, mask, out);
+		break;
+	}
+
+	return 0;
+}
+
+int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
+				  struct rsnd_dai *rdai,
+				  struct rsnd_dai_stream *io,
+				  unsigned int src_rate,
+				  unsigned int dst_rate)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+	struct device *dev = rsnd_priv_to_dev(priv);
+	int idx, sel, div, step, ret;
+	u32 val, en;
+	unsigned int min, diff;
+	unsigned int sel_rate [] = {
+		clk_get_rate(adg->clk[CLKA]),	/* 0000: CLKA */
+		clk_get_rate(adg->clk[CLKB]),	/* 0001: CLKB */
+		clk_get_rate(adg->clk[CLKC]),	/* 0010: CLKC */
+		adg->rbga_rate_for_441khz_div_6,/* 0011: RBGA */
+		adg->rbgb_rate_for_48khz_div_6,	/* 0100: RBGB */
+	};
+
+	min = ~0;
+	val = 0;
+	en = 0;
+	for (sel = 0; sel < ARRAY_SIZE(sel_rate); sel++) {
+		idx = 0;
+		step = 2;
+
+		if (!sel_rate[sel])
+			continue;
+
+		for (div = 2; div <= 98304; div += step) {
+			diff = abs(src_rate - sel_rate[sel] / div);
+			if (min > diff) {
+				val = (sel << 8) | idx;
+				min = diff;
+				en = 1 << (sel + 1); /* fixme */
+			}
+
+			/*
+			 * step of 0_0000 / 0_0001 / 0_1101
+			 * are out of order
+			 */
+			if ((idx > 2) && (idx % 2))
+				step *= 2;
+			if (idx == 0x1c) {
+				div += step;
+				step *= 2;
+			}
+			idx++;
+		}
+	}
+
+	if (min == ~0) {
+		dev_err(dev, "no Input clock\n");
+		return -EIO;
+	}
+
+	ret = rsnd_adg_set_src_timsel_gen2(rdai, mod, io, val);
+	if (ret < 0) {
+		dev_err(dev, "timsel error\n");
+		return ret;
+	}
+
+	rsnd_mod_bset(mod, DIV_EN, en, en);
+
+	return 0;
+}
+
+int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
+				     struct rsnd_dai *rdai,
+				     struct rsnd_dai_stream *io)
+{
+	u32 val = rsnd_adg_ssi_ws_timing_gen2(io);
+
+	return rsnd_adg_set_src_timsel_gen2(rdai, mod, io, val);
+}
+
+int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
+				  struct rsnd_mod *mod,
+				  unsigned int src_rate,
+				  unsigned int dst_rate)
 {
 	struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
 	struct device *dev = rsnd_priv_to_dev(priv);
@@ -91,18 +241,6 @@ static int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
 	return 0;
 }
 
-int rsnd_adg_set_convert_clk(struct rsnd_priv *priv,
-			     struct rsnd_mod *mod,
-			     unsigned int src_rate,
-			     unsigned int dst_rate)
-{
-	if (rsnd_is_gen1(priv))
-		return rsnd_adg_set_convert_clk_gen1(priv, mod,
-						     src_rate, dst_rate);
-
-	return -EINVAL;
-}
-
 static void rsnd_adg_set_ssi_clk(struct rsnd_mod *mod, u32 val)
 {
 	int id = rsnd_mod_id(mod);
@@ -254,13 +392,13 @@ static void rsnd_adg_ssi_clk_init(struct rsnd_priv *priv, struct rsnd_adg *adg)
 }
 
 int rsnd_adg_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
 		   struct rsnd_priv *priv)
 {
 	struct rsnd_adg *adg;
 	struct device *dev = rsnd_priv_to_dev(priv);
-	struct clk *clk;
+	struct clk *clk, *clk_orig;
 	int i;
+	bool use_old_style = false;
 
 	adg = devm_kzalloc(dev, sizeof(*adg), GFP_KERNEL);
 	if (!adg) {
@@ -268,10 +406,39 @@ int rsnd_adg_probe(struct platform_device *pdev,
 		return -ENOMEM;
 	}
 
-	adg->clk[CLKA] = clk_get(NULL, "audio_clk_a");
-	adg->clk[CLKB] = clk_get(NULL, "audio_clk_b");
-	adg->clk[CLKC] = clk_get(NULL, "audio_clk_c");
-	adg->clk[CLKI] = clk_get(NULL, "audio_clk_internal");
+	clk_orig	= devm_clk_get(dev, NULL);
+	adg->clk[CLKA]	= devm_clk_get(dev, "clk_a");
+	adg->clk[CLKB]	= devm_clk_get(dev, "clk_b");
+	adg->clk[CLKC]	= devm_clk_get(dev, "clk_c");
+	adg->clk[CLKI]	= devm_clk_get(dev, "clk_i");
+
+	/*
+	 * It request device dependent audio clock.
+	 * But above all clks will indicate rsnd module clock
+	 * if platform doesn't it
+	 */
+	for_each_rsnd_clk(clk, adg, i) {
+		if (clk_orig == clk) {
+			dev_warn(dev,
+				 "doesn't have device dependent clock, use independent clock\n");
+			use_old_style = true;
+			break;
+		}
+	}
+
+	/*
+	 * note:
+	 * these exist in order to keep compatible with
+	 * platform which has device independent audio clock,
+	 * but will be removed soon
+	 */
+	if (use_old_style) {
+		adg->clk[CLKA] = devm_clk_get(NULL, "audio_clk_a");
+		adg->clk[CLKB] = devm_clk_get(NULL, "audio_clk_b");
+		adg->clk[CLKC] = devm_clk_get(NULL, "audio_clk_c");
+		adg->clk[CLKI] = devm_clk_get(NULL, "audio_clk_internal");
+	}
+
 	for_each_rsnd_clk(clk, adg, i) {
 		if (IS_ERR(clk)) {
 			dev_err(dev, "Audio clock failed\n");
@@ -287,14 +454,3 @@ int rsnd_adg_probe(struct platform_device *pdev,
 
 	return 0;
 }
-
-void rsnd_adg_remove(struct platform_device *pdev,
-		     struct rsnd_priv *priv)
-{
-	struct rsnd_adg *adg = priv->adg;
-	struct clk *clk;
-	int i;
-
-	for_each_rsnd_clk(clk, adg, i)
-		clk_put(clk);
-}

sound/soc/sh/rcar/core.c

@@ -73,13 +73,13 @@
  *   |  +- ssi[2]
  *   |  ...
  *   |
- *   | ** these control scu
+ *   | ** these control src
  *   |
- *   +- scu
+ *   +- src
  *      |
- *      +- scu[0]
- *      +- scu[1]
- *      +- scu[2]
+ *      +- src[0]
+ *      +- src[1]
+ *      +- src[2]
  *      ...
  *
  *
@@ -107,6 +107,11 @@
 	(!(priv->info->func) ? 0 :		\
 	 priv->info->func(param))
 
+#define rsnd_is_enable_path(io, name) \
+	((io)->info ? (io)->info->name : NULL)
+#define rsnd_info_id(priv, io, name) \
+	((io)->info->name - priv->info->name##_info)
+
 /*
  *	rsnd_mod functions
  */
@@ -121,17 +126,19 @@ char *rsnd_mod_name(struct rsnd_mod *mod)
 void rsnd_mod_init(struct rsnd_priv *priv,
 		   struct rsnd_mod *mod,
 		   struct rsnd_mod_ops *ops,
+		   enum rsnd_mod_type type,
 		   int id)
 {
 	mod->priv	= priv;
 	mod->id		= id;
 	mod->ops	= ops;
-	INIT_LIST_HEAD(&mod->list);
+	mod->type	= type;
 }
 
 /*
  *	rsnd_dma functions
  */
+static void __rsnd_dma_start(struct rsnd_dma *dma);
 static void rsnd_dma_continue(struct rsnd_dma *dma)
 {
 	/* push next A or B plane */
@@ -142,8 +149,9 @@ static void rsnd_dma_continue(struct rsnd_dma *dma)
 void rsnd_dma_start(struct rsnd_dma *dma)
 {
 	/* push both A and B plane*/
+	dma->offset = 0;
 	dma->submit_loop = 2;
-	schedule_work(&dma->work);
+	__rsnd_dma_start(dma);
 }
 
 void rsnd_dma_stop(struct rsnd_dma *dma)
@@ -156,12 +164,26 @@ void rsnd_dma_stop(struct rsnd_dma *dma)
 static void rsnd_dma_complete(void *data)
 {
 	struct rsnd_dma *dma = (struct rsnd_dma *)data;
-	struct rsnd_priv *priv = dma->priv;
+	struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+	struct rsnd_priv *priv = rsnd_mod_to_priv(rsnd_dma_to_mod(dma));
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
 	unsigned long flags;
 
 	rsnd_lock(priv, flags);
 
-	dma->complete(dma);
+	/*
+	 * Renesas sound Gen1 needs 1 DMAC,
+	 * Gen2 needs 2 DMAC.
+	 * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
+	 * But, Audio-DMAC-peri-peri doesn't have interrupt,
+	 * and this driver is assuming that here.
+	 *
+	 * If Audio-DMAC-peri-peri has interrpt,
+	 * rsnd_dai_pointer_update() will be called twice,
+	 * ant it will breaks io->byte_pos
+	 */
+
+	rsnd_dai_pointer_update(io, io->byte_per_period);
 
 	if (dma->submit_loop)
 		rsnd_dma_continue(dma);
@@ -169,20 +191,23 @@ static void rsnd_dma_complete(void *data)
 	rsnd_unlock(priv, flags);
 }
 
-static void rsnd_dma_do_work(struct work_struct *work)
+static void __rsnd_dma_start(struct rsnd_dma *dma)
 {
-	struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work);
-	struct rsnd_priv *priv = dma->priv;
+	struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct dma_async_tx_descriptor *desc;
 	dma_addr_t buf;
-	size_t len;
+	size_t len = io->byte_per_period;
 	int i;
 
 	for (i = 0; i < dma->submit_loop; i++) {
 
-		if (dma->inquiry(dma, &buf, &len) < 0)
-			return;
+		buf = runtime->dma_addr +
+			rsnd_dai_pointer_offset(io, dma->offset + len);
+		dma->offset = len;
 
 		desc = dmaengine_prep_slave_single(
 			dma->chan, buf, len, dma->dir,
@@ -204,16 +229,20 @@ static void rsnd_dma_do_work(struct work_struct *work)
 	}
 }
 
+static void rsnd_dma_do_work(struct work_struct *work)
+{
+	struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work);
+
+	__rsnd_dma_start(dma);
+}
+
 int rsnd_dma_available(struct rsnd_dma *dma)
 {
 	return !!dma->chan;
 }
 
 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
-		  int is_play, int id,
-		  int (*inquiry)(struct rsnd_dma *dma,
-				  dma_addr_t *buf, int *len),
-		  int (*complete)(struct rsnd_dma *dma))
+		  int is_play, int id)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct dma_slave_config cfg;
@@ -246,9 +275,6 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 		goto rsnd_dma_init_err;
 
 	dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
-	dma->priv = priv;
-	dma->inquiry = inquiry;
-	dma->complete = complete;
 	INIT_WORK(&dma->work, rsnd_dma_do_work);
 
 	return 0;
@@ -271,26 +297,42 @@ void  rsnd_dma_quit(struct rsnd_priv *priv,
 /*
  *	rsnd_dai functions
  */
-#define rsnd_dai_call(rdai, io, fn)			\
-({							\
-	struct rsnd_mod *mod, *n;			\
-	int ret = 0;					\
-	for_each_rsnd_mod(mod, n, io) {			\
-		ret = rsnd_mod_call(mod, fn, rdai, io);	\
-		if (ret < 0)				\
-			break;				\
-	}						\
-	ret;						\
+#define __rsnd_mod_call(mod, func, rdai, io)			\
+({								\
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);		\
+	struct device *dev = rsnd_priv_to_dev(priv);		\
+	dev_dbg(dev, "%s [%d] %s\n",				\
+		rsnd_mod_name(mod), rsnd_mod_id(mod), #func);	\
+	(mod)->ops->func(mod, rdai, io);			\
+})
+
+#define rsnd_mod_call(mod, func, rdai, io)	\
+	(!(mod) ? -ENODEV :			\
+	 !((mod)->ops->func) ? 0 :		\
+	 __rsnd_mod_call(mod, func, (rdai), (io)))
+
+#define rsnd_dai_call(rdai, io, fn)				\
+({								\
+	struct rsnd_mod *mod;					\
+	int ret = 0, i;						\
+	for (i = 0; i < RSND_MOD_MAX; i++) {			\
+		mod = (io)->mod[i];				\
+		if (!mod)					\
+			continue;				\
+		ret = rsnd_mod_call(mod, fn, (rdai), (io));	\
+		if (ret < 0)					\
+			break;					\
+	}							\
+	ret;							\
 })
 
-int rsnd_dai_connect(struct rsnd_dai *rdai,
-		     struct rsnd_mod *mod,
-		     struct rsnd_dai_stream *io)
+static int rsnd_dai_connect(struct rsnd_mod *mod,
+			    struct rsnd_dai_stream *io)
 {
 	if (!mod)
 		return -EIO;
 
-	if (!list_empty(&mod->list)) {
+	if (io->mod[mod->type]) {
 		struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 		struct device *dev = rsnd_priv_to_dev(priv);
 
@@ -300,14 +342,8 @@ int rsnd_dai_connect(struct rsnd_dai *rdai,
 		return -EIO;
 	}
 
-	list_add_tail(&mod->list, &io->head);
-
-	return 0;
-}
-
-int rsnd_dai_disconnect(struct rsnd_mod *mod)
-{
-	list_del_init(&mod->list);
+	io->mod[mod->type] = mod;
+	mod->io = io;
 
 	return 0;
 }
@@ -316,7 +352,7 @@ int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai)
 {
 	int id = rdai - priv->rdai;
 
-	if ((id < 0) || (id >= rsnd_dai_nr(priv)))
+	if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
 		return -EINVAL;
 
 	return id;
@@ -324,7 +360,7 @@ int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai)
 
 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id)
 {
-	if ((id < 0) || (id >= rsnd_dai_nr(priv)))
+	if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
 		return NULL;
 
 	return priv->rdai + id;
@@ -382,10 +418,6 @@ static int rsnd_dai_stream_init(struct rsnd_dai_stream *io,
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 
-	if (!list_empty(&io->head))
-		return -EIO;
-
-	INIT_LIST_HEAD(&io->head);
 	io->substream		= substream;
 	io->byte_pos		= 0;
 	io->period_pos		= 0;
@@ -440,10 +472,6 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 		if (ret < 0)
 			goto dai_trigger_end;
 
-		ret = rsnd_gen_path_init(priv, rdai, io);
-		if (ret < 0)
-			goto dai_trigger_end;
-
 		ret = rsnd_dai_call(rdai, io, init);
 		if (ret < 0)
 			goto dai_trigger_end;
@@ -461,10 +489,6 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 		if (ret < 0)
 			goto dai_trigger_end;
 
-		ret = rsnd_gen_path_exit(priv, rdai, io);
-		if (ret < 0)
-			goto dai_trigger_end;
-
 		ret = rsnd_platform_call(priv, dai, stop, ssi_id);
 		if (ret < 0)
 			goto dai_trigger_end;
@@ -540,24 +564,86 @@ static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
 	.set_fmt	= rsnd_soc_dai_set_fmt,
 };
 
+static int rsnd_path_init(struct rsnd_priv *priv,
+			  struct rsnd_dai *rdai,
+			  struct rsnd_dai_stream *io)
+{
+	struct rsnd_mod *mod;
+	struct rsnd_dai_platform_info *dai_info = rdai->info;
+	int ret;
+	int ssi_id = -1;
+	int src_id = -1;
+
+	/*
+	 * Gen1 is created by SRU/SSI, and this SRU is base module of
+	 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
+	 *
+	 * Easy image is..
+	 *	Gen1 SRU = Gen2 SCU + SSIU + etc
+	 *
+	 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
+	 * using fixed path.
+	 */
+	if (dai_info) {
+		if (rsnd_is_enable_path(io, ssi))
+			ssi_id = rsnd_info_id(priv, io, ssi);
+		if (rsnd_is_enable_path(io, src))
+			src_id = rsnd_info_id(priv, io, src);
+	} else {
+		/* get SSI's ID */
+		mod = rsnd_ssi_mod_get_frm_dai(priv,
+					       rsnd_dai_id(priv, rdai),
+					       rsnd_dai_is_play(rdai, io));
+		if (!mod)
+			return 0;
+		ssi_id = src_id = rsnd_mod_id(mod);
+	}
+
+	ret = 0;
+
+	/* SRC */
+	if (src_id >= 0) {
+		mod = rsnd_src_mod_get(priv, src_id);
+		ret = rsnd_dai_connect(mod, io);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* SSI */
+	if (ssi_id >= 0) {
+		mod = rsnd_ssi_mod_get(priv, ssi_id);
+		ret = rsnd_dai_connect(mod, io);
+		if (ret < 0)
+			return ret;
+	}
+
+	return ret;
+}
+
 static int rsnd_dai_probe(struct platform_device *pdev,
-			  struct rcar_snd_info *info,
 			  struct rsnd_priv *priv)
 {
 	struct snd_soc_dai_driver *drv;
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 	struct rsnd_dai *rdai;
 	struct rsnd_mod *pmod, *cmod;
 	struct device *dev = rsnd_priv_to_dev(priv);
-	int dai_nr;
+	int dai_nr = info->dai_info_nr;
 	int i;
 
-	/* get max dai nr */
-	for (dai_nr = 0; dai_nr < 32; dai_nr++) {
-		pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1);
-		cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0);
+	/*
+	 * dai_nr should be set via dai_info_nr,
+	 * but allow it to keeping compatible
+	 */
+	if (!dai_nr) {
+		/* get max dai nr */
+		for (dai_nr = 0; dai_nr < 32; dai_nr++) {
+			pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1);
+			cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0);
 
-		if (!pmod && !cmod)
-			break;
+			if (!pmod && !cmod)
+				break;
+		}
 	}
 
 	if (!dai_nr) {
@@ -572,7 +658,13 @@ static int rsnd_dai_probe(struct platform_device *pdev,
 		return -ENOMEM;
 	}
 
+	priv->rdai_nr	= dai_nr;
+	priv->daidrv	= drv;
+	priv->rdai	= rdai;
+
 	for (i = 0; i < dai_nr; i++) {
+		if (info->dai_info)
+			rdai[i].info = &info->dai_info[i];
 
 		pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1);
 		cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0);
@@ -580,9 +672,6 @@ static int rsnd_dai_probe(struct platform_device *pdev,
 		/*
 		 *	init rsnd_dai
 		 */
-		INIT_LIST_HEAD(&rdai[i].playback.head);
-		INIT_LIST_HEAD(&rdai[i].capture.head);
-
 		snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
 
 		/*
@@ -595,12 +684,20 @@ static int rsnd_dai_probe(struct platform_device *pdev,
 			drv[i].playback.formats		= RSND_FMTS;
 			drv[i].playback.channels_min	= 2;
 			drv[i].playback.channels_max	= 2;
+
+			if (info->dai_info)
+				rdai[i].playback.info = &info->dai_info[i].playback;
+			rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
 		}
 		if (cmod) {
 			drv[i].capture.rates		= RSND_RATES;
 			drv[i].capture.formats		= RSND_FMTS;
 			drv[i].capture.channels_min	= 2;
 			drv[i].capture.channels_max	= 2;
+
+			if (info->dai_info)
+				rdai[i].capture.info = &info->dai_info[i].capture;
+			rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
 		}
 
 		dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
@@ -608,18 +705,9 @@ static int rsnd_dai_probe(struct platform_device *pdev,
 			cmod ? "capture" : "  --   ");
 	}
 
-	priv->dai_nr	= dai_nr;
-	priv->daidrv	= drv;
-	priv->rdai	= rdai;
-
 	return 0;
 }
 
-static void rsnd_dai_remove(struct platform_device *pdev,
-			  struct rsnd_priv *priv)
-{
-}
-
 /*
  *		pcm ops
  */
@@ -713,7 +801,16 @@ static int rsnd_probe(struct platform_device *pdev)
 	struct rcar_snd_info *info;
 	struct rsnd_priv *priv;
 	struct device *dev = &pdev->dev;
-	int ret;
+	struct rsnd_dai *rdai;
+	int (*probe_func[])(struct platform_device *pdev,
+			    struct rsnd_priv *priv) = {
+		rsnd_gen_probe,
+		rsnd_ssi_probe,
+		rsnd_src_probe,
+		rsnd_adg_probe,
+		rsnd_dai_probe,
+	};
+	int ret, i;
 
 	info = pdev->dev.platform_data;
 	if (!info) {
@@ -737,25 +834,21 @@ static int rsnd_probe(struct platform_device *pdev)
 	/*
 	 *	init each module
 	 */
-	ret = rsnd_gen_probe(pdev, info, priv);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_scu_probe(pdev, info, priv);
-	if (ret < 0)
-		return ret;
+	for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
+		ret = probe_func[i](pdev, priv);
+		if (ret)
+			return ret;
+	}
 
-	ret = rsnd_adg_probe(pdev, info, priv);
-	if (ret < 0)
-		return ret;
+	for_each_rsnd_dai(rdai, priv, i) {
+		ret = rsnd_dai_call(rdai, &rdai->playback, probe);
+		if (ret)
+			return ret;
 
-	ret = rsnd_ssi_probe(pdev, info, priv);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_dai_probe(pdev, info, priv);
-	if (ret < 0)
-		return ret;
+		ret = rsnd_dai_call(rdai, &rdai->capture, probe);
+		if (ret)
+			return ret;
+	}
 
 	/*
 	 *	asoc register
@@ -767,7 +860,7 @@ static int rsnd_probe(struct platform_device *pdev)
 	}
 
 	ret = snd_soc_register_component(dev, &rsnd_soc_component,
-					 priv->daidrv, rsnd_dai_nr(priv));
+					 priv->daidrv, rsnd_rdai_nr(priv));
 	if (ret < 0) {
 		dev_err(dev, "cannot snd dai register\n");
 		goto exit_snd_soc;
@@ -789,17 +882,20 @@ static int rsnd_probe(struct platform_device *pdev)
 static int rsnd_remove(struct platform_device *pdev)
 {
 	struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
+	struct rsnd_dai *rdai;
+	int ret, i;
 
 	pm_runtime_disable(&pdev->dev);
 
-	/*
-	 *	remove each module
-	 */
-	rsnd_ssi_remove(pdev, priv);
-	rsnd_adg_remove(pdev, priv);
-	rsnd_scu_remove(pdev, priv);
-	rsnd_dai_remove(pdev, priv);
-	rsnd_gen_remove(pdev, priv);
+	for_each_rsnd_dai(rdai, priv, i) {
+		ret = rsnd_dai_call(rdai, &rdai->playback, remove);
+		if (ret)
+			return ret;
+
+		ret = rsnd_dai_call(rdai, &rdai->capture, remove);
+		if (ret)
+			return ret;
+	}
 
 	return 0;
 }

sound/soc/sh/rcar/gen.c

@@ -155,62 +155,6 @@ static int rsnd_gen_regmap_init(struct rsnd_priv *priv,
 	return 0;
 }
 
-int rsnd_gen_path_init(struct rsnd_priv *priv,
-		       struct rsnd_dai *rdai,
-		       struct rsnd_dai_stream *io)
-{
-	struct rsnd_mod *mod;
-	int ret;
-	int id;
-
-	/*
-	 * Gen1 is created by SRU/SSI, and this SRU is base module of
-	 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
-	 *
-	 * Easy image is..
-	 *	Gen1 SRU = Gen2 SCU + SSIU + etc
-	 *
-	 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
-	 * using fixed path.
-	 *
-	 * Then, SSI id = SCU id here
-	 */
-
-	/* get SSI's ID */
-	mod = rsnd_ssi_mod_get_frm_dai(priv,
-				       rsnd_dai_id(priv, rdai),
-				       rsnd_dai_is_play(rdai, io));
-	id = rsnd_mod_id(mod);
-
-	/* SSI */
-	mod = rsnd_ssi_mod_get(priv, id);
-	ret = rsnd_dai_connect(rdai, mod, io);
-	if (ret < 0)
-		return ret;
-
-	/* SCU */
-	mod = rsnd_scu_mod_get(priv, id);
-	ret = rsnd_dai_connect(rdai, mod, io);
-
-	return ret;
-}
-
-int rsnd_gen_path_exit(struct rsnd_priv *priv,
-		       struct rsnd_dai *rdai,
-		       struct rsnd_dai_stream *io)
-{
-	struct rsnd_mod *mod, *n;
-	int ret = 0;
-
-	/*
-	 * remove all mod from rdai
-	 */
-	for_each_rsnd_mod(mod, n, io)
-		ret |= rsnd_dai_disconnect(mod);
-
-	return ret;
-}
-
 /*
  *		Gen2
  */
@@ -229,14 +173,40 @@ static int rsnd_gen2_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 		RSND_GEN2_S_REG(gen, SSIU,	SSI_MODE0,	0x800),
 		RSND_GEN2_S_REG(gen, SSIU,	SSI_MODE1,	0x804),
 		/* FIXME: it needs SSI_MODE2/3 in the future */
+		RSND_GEN2_M_REG(gen, SSIU,	SSI_BUSIF_MODE,	0x0,	0x80),
+		RSND_GEN2_M_REG(gen, SSIU,	SSI_BUSIF_ADINR,0x4,	0x80),
+		RSND_GEN2_M_REG(gen, SSIU,	SSI_CTRL,	0x10,	0x80),
 		RSND_GEN2_M_REG(gen, SSIU,	INT_ENABLE,	0x18,	0x80),
 
+		RSND_GEN2_M_REG(gen, SCU,	SRC_BUSIF_MODE,	0x0,	0x20),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_ROUTE_MODE0,0xc,	0x20),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_CTRL,	0x10,	0x20),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_SWRSR,	0x200,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_SRCIR,	0x204,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_ADINR,	0x214,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_IFSCR,	0x21c,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_IFSVR,	0x220,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_SRCCR,	0x224,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_BSDSR,	0x22c,	0x40),
+		RSND_GEN2_M_REG(gen, SCU,	SRC_BSISR,	0x238,	0x40),
+
 		RSND_GEN2_S_REG(gen, ADG,	BRRA,		0x00),
 		RSND_GEN2_S_REG(gen, ADG,	BRRB,		0x04),
 		RSND_GEN2_S_REG(gen, ADG,	SSICKR,		0x08),
 		RSND_GEN2_S_REG(gen, ADG,	AUDIO_CLK_SEL0,	0x0c),
 		RSND_GEN2_S_REG(gen, ADG,	AUDIO_CLK_SEL1,	0x10),
 		RSND_GEN2_S_REG(gen, ADG,	AUDIO_CLK_SEL2,	0x14),
+		RSND_GEN2_S_REG(gen, ADG,	DIV_EN,		0x30),
+		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL0,	0x34),
+		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL1,	0x38),
+		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL2,	0x3c),
+		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL3,	0x40),
+		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL4,	0x44),
+		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL0,	0x48),
+		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL1,	0x4c),
+		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL2,	0x50),
+		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL3,	0x54),
+		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL4,	0x58),
 
 		RSND_GEN2_M_REG(gen, SSI,	SSICR,		0x00,	0x40),
 		RSND_GEN2_M_REG(gen, SSI,	SSISR,		0x04,	0x40),
@@ -249,7 +219,6 @@ static int rsnd_gen2_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 }
 
 static int rsnd_gen2_probe(struct platform_device *pdev,
-			   struct rcar_snd_info *info,
 			   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
@@ -283,7 +252,7 @@ static int rsnd_gen2_probe(struct platform_device *pdev,
 		return ret;
 
 	dev_dbg(dev, "Gen2 device probed\n");
-	dev_dbg(dev, "SRU  : %08x => %p\n", scu_res->start,
+	dev_dbg(dev, "SCU  : %08x => %p\n", scu_res->start,
 		gen->base[RSND_GEN2_SCU]);
 	dev_dbg(dev, "ADG  : %08x => %p\n", adg_res->start,
 		gen->base[RSND_GEN2_ADG]);
@@ -317,7 +286,7 @@ static int rsnd_gen1_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 		RSND_GEN1_S_REG(gen, SRU,	SRC_ROUTE_CTRL,	0xc0),
 		RSND_GEN1_S_REG(gen, SRU,	SSI_MODE0,	0xD0),
 		RSND_GEN1_S_REG(gen, SRU,	SSI_MODE1,	0xD4),
-		RSND_GEN1_M_REG(gen, SRU,	BUSIF_MODE,	0x20,	0x4),
+		RSND_GEN1_M_REG(gen, SRU,	SRC_BUSIF_MODE,	0x20,	0x4),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_ROUTE_MODE0,0x50,	0x8),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_SWRSR,	0x200,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_SRCIR,	0x204,	0x40),
@@ -347,7 +316,6 @@ static int rsnd_gen1_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 }
 
 static int rsnd_gen1_probe(struct platform_device *pdev,
-			   struct rcar_snd_info *info,
 			   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
@@ -392,7 +360,6 @@ static int rsnd_gen1_probe(struct platform_device *pdev,
  *		Gen
  */
 int rsnd_gen_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
 		   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
@@ -409,17 +376,12 @@ int rsnd_gen_probe(struct platform_device *pdev,
 
 	ret = -ENODEV;
 	if (rsnd_is_gen1(priv))
-		ret = rsnd_gen1_probe(pdev, info, priv);
+		ret = rsnd_gen1_probe(pdev, priv);
 	else if (rsnd_is_gen2(priv))
-		ret = rsnd_gen2_probe(pdev, info, priv);
+		ret = rsnd_gen2_probe(pdev, priv);
 
 	if (ret < 0)
 		dev_err(dev, "unknown generation R-Car sound device\n");
 
 	return ret;
 }
-
-void rsnd_gen_remove(struct platform_device *pdev,
-		     struct rsnd_priv *priv)
-{
-}

sound/soc/sh/rcar/rsnd.h

@@ -32,15 +32,9 @@
  */
 enum rsnd_reg {
 	/* SRU/SCU/SSIU */
-	RSND_REG_SRC_ROUTE_SEL,		/* for Gen1 */
-	RSND_REG_SRC_TMG_SEL0,		/* for Gen1 */
-	RSND_REG_SRC_TMG_SEL1,		/* for Gen1 */
-	RSND_REG_SRC_TMG_SEL2,		/* for Gen1 */
-	RSND_REG_SRC_ROUTE_CTRL,	/* for Gen1 */
 	RSND_REG_SSI_MODE0,
 	RSND_REG_SSI_MODE1,
-	RSND_REG_BUSIF_MODE,
-	RSND_REG_INT_ENABLE,		/* for Gen2 */
+	RSND_REG_SRC_BUSIF_MODE,
 	RSND_REG_SRC_ROUTE_MODE0,
 	RSND_REG_SRC_SWRSR,
 	RSND_REG_SRC_SRCIR,
@@ -48,7 +42,6 @@ enum rsnd_reg {
 	RSND_REG_SRC_IFSCR,
 	RSND_REG_SRC_IFSVR,
 	RSND_REG_SRC_SRCCR,
-	RSND_REG_SRC_MNFSR,
 
 	/* ADG */
 	RSND_REG_BRRA,
@@ -56,10 +49,6 @@ enum rsnd_reg {
 	RSND_REG_SSICKR,
 	RSND_REG_AUDIO_CLK_SEL0,
 	RSND_REG_AUDIO_CLK_SEL1,
-	RSND_REG_AUDIO_CLK_SEL2,
-	RSND_REG_AUDIO_CLK_SEL3,	/* for Gen1 */
-	RSND_REG_AUDIO_CLK_SEL4,	/* for Gen1 */
-	RSND_REG_AUDIO_CLK_SEL5,	/* for Gen1 */
 
 	/* SSI */
 	RSND_REG_SSICR,
@@ -68,9 +57,62 @@ enum rsnd_reg {
 	RSND_REG_SSIRDR,
 	RSND_REG_SSIWSR,
 
+	/* SHARE see below */
+	RSND_REG_SHARE01,
+	RSND_REG_SHARE02,
+	RSND_REG_SHARE03,
+	RSND_REG_SHARE04,
+	RSND_REG_SHARE05,
+	RSND_REG_SHARE06,
+	RSND_REG_SHARE07,
+	RSND_REG_SHARE08,
+	RSND_REG_SHARE09,
+	RSND_REG_SHARE10,
+	RSND_REG_SHARE11,
+	RSND_REG_SHARE12,
+	RSND_REG_SHARE13,
+	RSND_REG_SHARE14,
+	RSND_REG_SHARE15,
+	RSND_REG_SHARE16,
+	RSND_REG_SHARE17,
+	RSND_REG_SHARE18,
+	RSND_REG_SHARE19,
+
 	RSND_REG_MAX,
 };
 
+/* Gen1 only */
+#define RSND_REG_SRC_ROUTE_SEL		RSND_REG_SHARE01
+#define RSND_REG_SRC_TMG_SEL0		RSND_REG_SHARE02
+#define RSND_REG_SRC_TMG_SEL1		RSND_REG_SHARE03
+#define RSND_REG_SRC_TMG_SEL2		RSND_REG_SHARE04
+#define RSND_REG_SRC_ROUTE_CTRL		RSND_REG_SHARE05
+#define RSND_REG_SRC_MNFSR		RSND_REG_SHARE06
+#define RSND_REG_AUDIO_CLK_SEL3		RSND_REG_SHARE07
+#define RSND_REG_AUDIO_CLK_SEL4		RSND_REG_SHARE08
+#define RSND_REG_AUDIO_CLK_SEL5		RSND_REG_SHARE09
+
+/* Gen2 only */
+#define RSND_REG_SRC_CTRL		RSND_REG_SHARE01
+#define RSND_REG_SSI_CTRL		RSND_REG_SHARE02
+#define RSND_REG_SSI_BUSIF_MODE		RSND_REG_SHARE03
+#define RSND_REG_SSI_BUSIF_ADINR	RSND_REG_SHARE04
+#define RSND_REG_INT_ENABLE		RSND_REG_SHARE05
+#define RSND_REG_SRC_BSDSR		RSND_REG_SHARE06
+#define RSND_REG_SRC_BSISR		RSND_REG_SHARE07
+#define RSND_REG_DIV_EN			RSND_REG_SHARE08
+#define RSND_REG_SRCIN_TIMSEL0		RSND_REG_SHARE09
+#define RSND_REG_SRCIN_TIMSEL1		RSND_REG_SHARE10
+#define RSND_REG_SRCIN_TIMSEL2		RSND_REG_SHARE11
+#define RSND_REG_SRCIN_TIMSEL3		RSND_REG_SHARE12
+#define RSND_REG_SRCIN_TIMSEL4		RSND_REG_SHARE13
+#define RSND_REG_SRCOUT_TIMSEL0		RSND_REG_SHARE14
+#define RSND_REG_SRCOUT_TIMSEL1		RSND_REG_SHARE15
+#define RSND_REG_SRCOUT_TIMSEL2		RSND_REG_SHARE16
+#define RSND_REG_SRCOUT_TIMSEL3		RSND_REG_SHARE17
+#define RSND_REG_SRCOUT_TIMSEL4		RSND_REG_SHARE18
+#define RSND_REG_AUDIO_CLK_SEL2		RSND_REG_SHARE19
+
 struct rsnd_priv;
 struct rsnd_mod;
 struct rsnd_dai;
@@ -96,24 +138,20 @@ void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
  *	R-Car DMA
  */
 struct rsnd_dma {
-	struct rsnd_priv	*priv;
 	struct sh_dmae_slave	slave;
 	struct work_struct	work;
 	struct dma_chan		*chan;
 	enum dma_data_direction dir;
-	int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len);
-	int (*complete)(struct rsnd_dma *dma);
 
 	int submit_loop;
+	int offset; /* it cares A/B plane */
 };
 
 void rsnd_dma_start(struct rsnd_dma *dma);
 void rsnd_dma_stop(struct rsnd_dma *dma);
 int rsnd_dma_available(struct rsnd_dma *dma);
 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
-	int is_play, int id,
-	int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len),
-	int (*complete)(struct rsnd_dma *dma));
+	int is_play, int id);
 void  rsnd_dma_quit(struct rsnd_priv *priv,
 		    struct rsnd_dma *dma);
 
@@ -121,9 +159,20 @@ void  rsnd_dma_quit(struct rsnd_priv *priv,
 /*
  *	R-Car sound mod
  */
+enum rsnd_mod_type {
+	RSND_MOD_SRC = 0,
+	RSND_MOD_SSI,
+	RSND_MOD_MAX,
+};
 
 struct rsnd_mod_ops {
 	char *name;
+	int (*probe)(struct rsnd_mod *mod,
+		     struct rsnd_dai *rdai,
+		     struct rsnd_dai_stream *io);
+	int (*remove)(struct rsnd_mod *mod,
+		      struct rsnd_dai *rdai,
+		      struct rsnd_dai_stream *io);
 	int (*init)(struct rsnd_mod *mod,
 		    struct rsnd_dai *rdai,
 		    struct rsnd_dai_stream *io);
@@ -138,28 +187,26 @@ struct rsnd_mod_ops {
 		    struct rsnd_dai_stream *io);
 };
 
+struct rsnd_dai_stream;
 struct rsnd_mod {
 	int id;
+	enum rsnd_mod_type type;
 	struct rsnd_priv *priv;
 	struct rsnd_mod_ops *ops;
-	struct list_head list; /* connect to rsnd_dai playback/capture */
 	struct rsnd_dma dma;
+	struct rsnd_dai_stream *io;
 };
 
 #define rsnd_mod_to_priv(mod) ((mod)->priv)
 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
+#define rsnd_mod_to_io(mod) ((mod)->io)
 #define rsnd_mod_id(mod) ((mod)->id)
-#define for_each_rsnd_mod(pos, n, io)	\
-	list_for_each_entry_safe(pos, n, &(io)->head, list)
-#define rsnd_mod_call(mod, func, rdai, io)	\
-	(!(mod) ? -ENODEV :			\
-	 !((mod)->ops->func) ? 0 :		\
-	 (mod)->ops->func(mod, rdai, io))
 
 void rsnd_mod_init(struct rsnd_priv *priv,
 		   struct rsnd_mod *mod,
 		   struct rsnd_mod_ops *ops,
+		   enum rsnd_mod_type type,
 		   int id);
 char *rsnd_mod_name(struct rsnd_mod *mod);
 
@@ -168,13 +215,16 @@ char *rsnd_mod_name(struct rsnd_mod *mod);
  */
 #define RSND_DAI_NAME_SIZE	16
 struct rsnd_dai_stream {
-	struct list_head head; /* head of rsnd_mod list */
 	struct snd_pcm_substream *substream;
+	struct rsnd_mod *mod[RSND_MOD_MAX];
+	struct rsnd_dai_path_info *info; /* rcar_snd.h */
 	int byte_pos;
 	int period_pos;
 	int byte_per_period;
 	int next_period_byte;
 };
+#define rsnd_io_to_mod_ssi(io)	((io)->mod[RSND_MOD_SSI])
+#define rsnd_io_to_mod_src(io)	((io)->mod[RSND_MOD_SRC])
 
 struct rsnd_dai {
 	char name[RSND_DAI_NAME_SIZE];
@@ -189,16 +239,14 @@ struct rsnd_dai {
 	unsigned int data_alignment:1;
 };
 
-#define rsnd_dai_nr(priv) ((priv)->dai_nr)
+#define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
 #define for_each_rsnd_dai(rdai, priv, i)		\
-	for (i = 0, (rdai) = rsnd_dai_get(priv, i);	\
-	     i < rsnd_dai_nr(priv);			\
-	     i++, (rdai) = rsnd_dai_get(priv, i))
+	for (i = 0;					\
+	     (i < rsnd_rdai_nr(priv)) &&		\
+	     ((rdai) = rsnd_dai_get(priv, i));		\
+	     i++)
 
 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
-int rsnd_dai_disconnect(struct rsnd_mod *mod);
-int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod,
-		     struct rsnd_dai_stream *io);
 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
@@ -206,21 +254,13 @@ int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
 
 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
+#define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
 
 /*
  *	R-Car Gen1/Gen2
  */
 int rsnd_gen_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
 		   struct rsnd_priv *priv);
-void rsnd_gen_remove(struct platform_device *pdev,
-		     struct rsnd_priv *priv);
-int rsnd_gen_path_init(struct rsnd_priv *priv,
-		       struct rsnd_dai *rdai,
-		       struct rsnd_dai_stream *io);
-int rsnd_gen_path_exit(struct rsnd_priv *priv,
-		       struct rsnd_dai *rdai,
-		       struct rsnd_dai_stream *io);
 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
 			       struct rsnd_mod *mod,
 			       enum rsnd_reg reg);
@@ -233,14 +273,19 @@ void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
 int rsnd_adg_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
-		   struct rsnd_priv *priv);
-void rsnd_adg_remove(struct platform_device *pdev,
 		   struct rsnd_priv *priv);
-int rsnd_adg_set_convert_clk(struct rsnd_priv *priv,
-			     struct rsnd_mod *mod,
-			     unsigned int src_rate,
-			     unsigned int dst_rate);
+int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
+				  struct rsnd_mod *mod,
+				  unsigned int src_rate,
+				  unsigned int dst_rate);
+int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
+				  struct rsnd_dai *rdai,
+				  struct rsnd_dai_stream *io,
+				  unsigned int src_rate,
+				  unsigned int dst_rate);
+int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
+				     struct rsnd_dai *rdai,
+				     struct rsnd_dai_stream *io);
 
 /*
  *	R-Car sound priv
@@ -257,10 +302,10 @@ struct rsnd_priv {
 	void *gen;
 
 	/*
-	 * below value will be filled on rsnd_scu_probe()
+	 * below value will be filled on rsnd_src_probe()
 	 */
-	void *scu;
-	int scu_nr;
+	void *src;
+	int src_nr;
 
 	/*
 	 * below value will be filled on rsnd_adg_probe()
@@ -270,46 +315,62 @@ struct rsnd_priv {
 	/*
 	 * below value will be filled on rsnd_ssi_probe()
 	 */
-	void *ssiu;
+	void *ssi;
+	int ssi_nr;
 
 	/*
 	 * below value will be filled on rsnd_dai_probe()
 	 */
 	struct snd_soc_dai_driver *daidrv;
 	struct rsnd_dai *rdai;
-	int dai_nr;
+	int rdai_nr;
 };
 
 #define rsnd_priv_to_dev(priv)	((priv)->dev)
+#define rsnd_priv_to_info(priv)	((priv)->info)
 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
 
+#define rsnd_info_is_playback(priv, type)				\
+({									\
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);		\
+	int i, is_play = 0;						\
+	for (i = 0; i < info->dai_info_nr; i++) {			\
+		if (info->dai_info[i].playback.type == (type)->info) {	\
+			is_play = 1;					\
+			break;						\
+		}							\
+	}								\
+	is_play;							\
+})
+
 /*
- *	R-Car SCU
+ *	R-Car SRC
  */
-int rsnd_scu_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
+int rsnd_src_probe(struct platform_device *pdev,
 		   struct rsnd_priv *priv);
-void rsnd_scu_remove(struct platform_device *pdev,
-		     struct rsnd_priv *priv);
-struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
-bool rsnd_scu_hpbif_is_enable(struct rsnd_mod *mod);
-unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
-				   struct rsnd_mod *ssi_mod,
+struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
+unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
+				   struct rsnd_dai_stream *io,
 				   struct snd_pcm_runtime *runtime);
+int rsnd_src_ssi_mode_init(struct rsnd_mod *ssi_mod,
+			   struct rsnd_dai *rdai,
+			   struct rsnd_dai_stream *io);
+int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
+			    struct rsnd_dai *rdai,
+			    struct rsnd_dai_stream *io);
 
-#define rsnd_scu_nr(priv) ((priv)->scu_nr)
+#define rsnd_src_nr(priv) ((priv)->src_nr)
 
 /*
  *	R-Car SSI
  */
 int rsnd_ssi_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
-		   struct rsnd_priv *priv);
-void rsnd_ssi_remove(struct platform_device *pdev,
 		   struct rsnd_priv *priv);
 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
 					  int dai_id, int is_play);
+int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
+int rsnd_ssi_is_play(struct rsnd_mod *mod);
 
 #endif

sound/soc/sh/rcar/scu.c

-/*
- * Renesas R-Car SCU support
- *
- * Copyright (C) 2013 Renesas Solutions Corp.
- * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include "rsnd.h"
-
-struct rsnd_scu {
-	struct rsnd_scu_platform_info *info; /* rcar_snd.h */
-	struct rsnd_mod mod;
-	struct clk *clk;
-};
-
-#define rsnd_scu_mode_flags(p) ((p)->info->flags)
-#define rsnd_scu_convert_rate(p) ((p)->info->convert_rate)
-
-#define RSND_SCU_NAME_SIZE 16
-
-/*
- * ADINR
- */
-#define OTBL_24		(0 << 16)
-#define OTBL_22		(2 << 16)
-#define OTBL_20		(4 << 16)
-#define OTBL_18		(6 << 16)
-#define OTBL_16		(8 << 16)
-
-/*
- *		image of SRC (Sampling Rate Converter)
- *
- * 96kHz   <-> +-----+	48kHz	+-----+	 48kHz	+-------+
- * 48kHz   <-> | SRC | <------>	| SSI |	<----->	| codec |
- * 44.1kHz <-> +-----+		+-----+		+-------+
- * ...
- *
- */
-
-#define rsnd_mod_to_scu(_mod)	\
-	container_of((_mod), struct rsnd_scu, mod)
-
-#define for_each_rsnd_scu(pos, priv, i)					\
-	for ((i) = 0;							\
-	     ((i) < rsnd_scu_nr(priv)) &&				\
-		     ((pos) = (struct rsnd_scu *)(priv)->scu + i);	\
-	     i++)
-
-/* Gen1 only */
-static int rsnd_src_set_route_if_gen1(struct rsnd_priv *priv,
-			      struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai,
-			      struct rsnd_dai_stream *io)
-{
-	struct scu_route_config {
-		u32 mask;
-		int shift;
-	} routes[] = {
-		{ 0xF,  0, }, /* 0 */
-		{ 0xF,  4, }, /* 1 */
-		{ 0xF,  8, }, /* 2 */
-		{ 0x7, 12, }, /* 3 */
-		{ 0x7, 16, }, /* 4 */
-		{ 0x7, 20, }, /* 5 */
-		{ 0x7, 24, }, /* 6 */
-		{ 0x3, 28, }, /* 7 */
-		{ 0x3, 30, }, /* 8 */
-	};
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	u32 mask;
-	u32 val;
-	int shift;
-	int id;
-
-	/*
-	 * Gen1 only
-	 */
-	if (!rsnd_is_gen1(priv))
-		return 0;
-
-	id = rsnd_mod_id(mod);
-	if (id < 0 || id >= ARRAY_SIZE(routes))
-		return -EIO;
-
-	/*
-	 * SRC_ROUTE_SELECT
-	 */
-	val = rsnd_dai_is_play(rdai, io) ? 0x1 : 0x2;
-	val = val		<< routes[id].shift;
-	mask = routes[id].mask	<< routes[id].shift;
-
-	rsnd_mod_bset(mod, SRC_ROUTE_SEL, mask, val);
-
-	/*
-	 * SRC_TIMING_SELECT
-	 */
-	shift	= (id % 4) * 8;
-	mask	= 0x1F << shift;
-
-	/*
-	 * ADG is used as source clock if SRC was used,
-	 * then, SSI WS is used as destination clock.
-	 * SSI WS is used as source clock if SRC is not used
-	 * (when playback, source/destination become reverse when capture)
-	 */
-	if (rsnd_scu_convert_rate(scu))	/* use ADG */
-		val = 0;
-	else if (8 == id)		/* use SSI WS, but SRU8 is special */
-		val = id << shift;
-	else				/* use SSI WS */
-		val = (id + 1) << shift;
-
-	switch (id / 4) {
-	case 0:
-		rsnd_mod_bset(mod, SRC_TMG_SEL0, mask, val);
-		break;
-	case 1:
-		rsnd_mod_bset(mod, SRC_TMG_SEL1, mask, val);
-		break;
-	case 2:
-		rsnd_mod_bset(mod, SRC_TMG_SEL2, mask, val);
-		break;
-	}
-
-	return 0;
-}
-
-unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
-				   struct rsnd_mod *ssi_mod,
-				   struct snd_pcm_runtime *runtime)
-{
-	struct rsnd_scu *scu;
-	unsigned int rate;
-
-	/* this function is assuming SSI id = SCU id here */
-	scu = rsnd_mod_to_scu(rsnd_scu_mod_get(priv, rsnd_mod_id(ssi_mod)));
-
-	/*
-	 * return convert rate if SRC is used,
-	 * otherwise, return runtime->rate as usual
-	 */
-	rate = rsnd_scu_convert_rate(scu);
-	if (!rate)
-		rate = runtime->rate;
-
-	return rate;
-}
-
-static int rsnd_scu_convert_rate_ctrl(struct rsnd_priv *priv,
-			      struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai,
-			      struct rsnd_dai_stream *io)
-{
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	u32 convert_rate = rsnd_scu_convert_rate(scu);
-	u32 adinr = runtime->channels;
-
-	/* set/clear soft reset */
-	rsnd_mod_write(mod, SRC_SWRSR, 0);
-	rsnd_mod_write(mod, SRC_SWRSR, 1);
-
-	/* Initialize the operation of the SRC internal circuits */
-	rsnd_mod_write(mod, SRC_SRCIR, 1);
-
-	/* Set channel number and output bit length */
-	switch (runtime->sample_bits) {
-	case 16:
-		adinr |= OTBL_16;
-		break;
-	case 32:
-		adinr |= OTBL_24;
-		break;
-	default:
-		return -EIO;
-	}
-	rsnd_mod_write(mod, SRC_ADINR, adinr);
-
-	if (convert_rate) {
-		u32 fsrate = 0x0400000 / convert_rate * runtime->rate;
-		int ret;
-
-		/* Enable the initial value of IFS */
-		rsnd_mod_write(mod, SRC_IFSCR, 1);
-
-		/* Set initial value of IFS */
-		rsnd_mod_write(mod, SRC_IFSVR, fsrate);
-
-		/* Select SRC mode (fixed value) */
-		rsnd_mod_write(mod, SRC_SRCCR, 0x00010110);
-
-		/* Set the restriction value of the FS ratio (98%) */
-		rsnd_mod_write(mod, SRC_MNFSR, fsrate / 100 * 98);
-
-		if (rsnd_is_gen1(priv)) {
-			/* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
-		}
-
-		/* set convert clock */
-		ret = rsnd_adg_set_convert_clk(priv, mod,
-					       runtime->rate,
-					       convert_rate);
-		if (ret < 0)
-			return ret;
-	}
-
-	/* Cancel the initialization and operate the SRC function */
-	rsnd_mod_write(mod, SRC_SRCIR, 0);
-
-	/* use DMA transfer */
-	rsnd_mod_write(mod, BUSIF_MODE, 1);
-
-	return 0;
-}
-
-static int rsnd_scu_transfer_start(struct rsnd_priv *priv,
-				   struct rsnd_mod *mod,
-				   struct rsnd_dai *rdai,
-				   struct rsnd_dai_stream *io)
-{
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	int id = rsnd_mod_id(mod);
-	u32 val;
-
-	if (rsnd_is_gen1(priv)) {
-		val = (1 << id);
-		rsnd_mod_bset(mod, SRC_ROUTE_CTRL, val, val);
-	}
-
-	if (rsnd_scu_convert_rate(scu))
-		rsnd_mod_write(mod, SRC_ROUTE_MODE0, 1);
-
-	return 0;
-}
-
-static int rsnd_scu_transfer_stop(struct rsnd_priv *priv,
-				  struct rsnd_mod *mod,
-				  struct rsnd_dai *rdai,
-				  struct rsnd_dai_stream *io)
-{
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	int id = rsnd_mod_id(mod);
-	u32 mask;
-
-	if (rsnd_is_gen1(priv)) {
-		mask = (1 << id);
-		rsnd_mod_bset(mod, SRC_ROUTE_CTRL, mask, 0);
-	}
-
-	if (rsnd_scu_convert_rate(scu))
-		rsnd_mod_write(mod, SRC_ROUTE_MODE0, 0);
-
-	return 0;
-}
-
-bool rsnd_scu_hpbif_is_enable(struct rsnd_mod *mod)
-{
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	u32 flags = rsnd_scu_mode_flags(scu);
-
-	return !!(flags & RSND_SCU_USE_HPBIF);
-}
-
-static int rsnd_scu_start(struct rsnd_mod *mod,
-			  struct rsnd_dai *rdai,
-			  struct rsnd_dai_stream *io)
-{
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	struct device *dev = rsnd_priv_to_dev(priv);
-	int ret;
-
-	/*
-	 * SCU will be used if it has RSND_SCU_USE_HPBIF flags
-	 */
-	if (!rsnd_scu_hpbif_is_enable(mod)) {
-		/* it use PIO transter */
-		dev_dbg(dev, "%s%d is not used\n",
-			rsnd_mod_name(mod), rsnd_mod_id(mod));
-
-		return 0;
-	}
-
-	clk_enable(scu->clk);
-
-	/* it use DMA transter */
-
-	ret = rsnd_src_set_route_if_gen1(priv, mod, rdai, io);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_scu_convert_rate_ctrl(priv, mod, rdai, io);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_scu_transfer_start(priv, mod, rdai, io);
-	if (ret < 0)
-		return ret;
-
-	dev_dbg(dev, "%s%d start\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
-
-	return 0;
-}
-
-static int rsnd_scu_stop(struct rsnd_mod *mod,
-			  struct rsnd_dai *rdai,
-			  struct rsnd_dai_stream *io)
-{
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-
-	if (!rsnd_scu_hpbif_is_enable(mod))
-		return 0;
-
-	rsnd_scu_transfer_stop(priv, mod, rdai, io);
-
-	clk_disable(scu->clk);
-
-	return 0;
-}
-
-static struct rsnd_mod_ops rsnd_scu_ops = {
-	.name	= "scu",
-	.start	= rsnd_scu_start,
-	.stop	= rsnd_scu_stop,
-};
-
-struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id)
-{
-	if (WARN_ON(id < 0 || id >= rsnd_scu_nr(priv)))
-		id = 0;
-
-	return &((struct rsnd_scu *)(priv->scu) + id)->mod;
-}
-
-int rsnd_scu_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
-		   struct rsnd_priv *priv)
-{
-	struct device *dev = rsnd_priv_to_dev(priv);
-	struct rsnd_scu *scu;
-	struct clk *clk;
-	char name[RSND_SCU_NAME_SIZE];
-	int i, nr;
-
-	/*
-	 * init SCU
-	 */
-	nr	= info->scu_info_nr;
-	scu	= devm_kzalloc(dev, sizeof(*scu) * nr, GFP_KERNEL);
-	if (!scu) {
-		dev_err(dev, "SCU allocate failed\n");
-		return -ENOMEM;
-	}
-
-	priv->scu_nr	= nr;
-	priv->scu	= scu;
-
-	for_each_rsnd_scu(scu, priv, i) {
-		snprintf(name, RSND_SCU_NAME_SIZE, "scu.%d", i);
-
-		clk = devm_clk_get(dev, name);
-		if (IS_ERR(clk))
-			return PTR_ERR(clk);
-
-		rsnd_mod_init(priv, &scu->mod,
-			      &rsnd_scu_ops, i);
-		scu->info = &info->scu_info[i];
-		scu->clk = clk;
-
-		dev_dbg(dev, "SCU%d probed\n", i);
-	}
-	dev_dbg(dev, "scu probed\n");
-
-	return 0;
-}
-
-void rsnd_scu_remove(struct platform_device *pdev,
-		     struct rsnd_priv *priv)
-{
-}

sound/soc/sh/rcar/src.c

+/*
+ * Renesas R-Car SRC support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include "rsnd.h"
+
+struct rsnd_src {
+	struct rsnd_src_platform_info *info; /* rcar_snd.h */
+	struct rsnd_mod mod;
+	struct clk *clk;
+};
+
+#define RSND_SRC_NAME_SIZE 16
+
+/*
+ * ADINR
+ */
+#define OTBL_24		(0 << 16)
+#define OTBL_22		(2 << 16)
+#define OTBL_20		(4 << 16)
+#define OTBL_18		(6 << 16)
+#define OTBL_16		(8 << 16)
+
+#define rsnd_src_mode_flags(p) ((p)->info->flags)
+#define rsnd_src_convert_rate(p) ((p)->info->convert_rate)
+#define rsnd_mod_to_src(_mod)				\
+	container_of((_mod), struct rsnd_src, mod)
+#define rsnd_src_hpbif_is_enable(src)	\
+	(rsnd_src_mode_flags(src) & RSND_SCU_USE_HPBIF)
+#define rsnd_src_dma_available(src) \
+	rsnd_dma_available(rsnd_mod_to_dma(&(src)->mod))
+
+#define for_each_rsnd_src(pos, priv, i)				\
+	for ((i) = 0;						\
+	     ((i) < rsnd_src_nr(priv)) &&			\
+	     ((pos) = (struct rsnd_src *)(priv)->src + i);	\
+	     i++)
+
+
+/*
+ *		image of SRC (Sampling Rate Converter)
+ *
+ * 96kHz   <-> +-----+	48kHz	+-----+	 48kHz	+-------+
+ * 48kHz   <-> | SRC | <------>	| SSI |	<----->	| codec |
+ * 44.1kHz <-> +-----+		+-----+		+-------+
+ * ...
+ *
+ */
+
+/*
+ * src.c is caring...
+ *
+ * Gen1
+ *
+ * [mem] -> [SRU] -> [SSI]
+ *        |--------|
+ *
+ * Gen2
+ *
+ * [mem] -> [SRC] -> [SSIU] -> [SSI]
+ *        |-----------------|
+ */
+
+/*
+ *	How to use SRC bypass mode for debugging
+ *
+ * SRC has bypass mode, and it is useful for debugging.
+ * In Gen2 case,
+ * SRCm_MODE controls whether SRC is used or not
+ * SSI_MODE0 controls whether SSIU which receives SRC data
+ * is used or not.
+ * Both SRCm_MODE/SSI_MODE0 settings are needed if you use SRC,
+ * but SRC bypass mode needs SSI_MODE0 only.
+ *
+ * This driver request
+ * struct rsnd_src_platform_info {
+ *	u32 flags;
+ *	u32 convert_rate;
+ * }
+ *
+ * rsnd_src_hpbif_is_enable() will be true
+ * if flags had RSND_SRC_USE_HPBIF,
+ * and it controls whether SSIU is used or not.
+ *
+ * rsnd_src_convert_rate() indicates
+ * above convert_rate, and it controls
+ * whether SRC is used or not.
+ *
+ * ex) doesn't use SRC
+ * struct rsnd_src_platform_info info = {
+ *	.flags = 0,
+ *	.convert_rate = 0,
+ * };
+ *
+ * ex) uses SRC
+ * struct rsnd_src_platform_info info = {
+ *	.flags = RSND_SRC_USE_HPBIF,
+ *	.convert_rate = 48000,
+ * };
+ *
+ * ex) uses SRC bypass mode
+ * struct rsnd_src_platform_info info = {
+ *	.flags = RSND_SRC_USE_HPBIF,
+ *	.convert_rate = 0,
+ * };
+ *
+ */
+
+/*
+ *		Gen1/Gen2 common functions
+ */
+int rsnd_src_ssi_mode_init(struct rsnd_mod *ssi_mod,
+			   struct rsnd_dai *rdai,
+			   struct rsnd_dai_stream *io)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+	struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+	int ssi_id = rsnd_mod_id(ssi_mod);
+	int has_src = 0;
+
+	/*
+	 * SSI_MODE0
+	 */
+	if (info->dai_info) {
+		has_src = !!src_mod;
+	} else {
+		struct rsnd_src *src = rsnd_mod_to_src(src_mod);
+		has_src = rsnd_src_hpbif_is_enable(src);
+	}
+
+	rsnd_mod_bset(ssi_mod, SSI_MODE0, (1 << ssi_id),
+		      has_src ? 0 : (1 << ssi_id));
+
+	/*
+	 * SSI_MODE1
+	 */
+	if (rsnd_ssi_is_pin_sharing(ssi_mod)) {
+		int shift = -1;
+		switch (ssi_id) {
+		case 1:
+			shift = 0;
+			break;
+		case 2:
+			shift = 2;
+			break;
+		case 4:
+			shift = 16;
+			break;
+		}
+
+		if (shift >= 0)
+			rsnd_mod_bset(ssi_mod, SSI_MODE1,
+				      0x3 << shift,
+				      rsnd_dai_is_clk_master(rdai) ?
+				      0x2 << shift : 0x1 << shift);
+	}
+
+	return 0;
+}
+
+int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
+			    struct rsnd_dai *rdai,
+			    struct rsnd_dai_stream *io)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+
+	/* enable PIO interrupt if Gen2 */
+	if (rsnd_is_gen2(priv))
+		rsnd_mod_write(ssi_mod, INT_ENABLE, 0x0f000000);
+
+	return 0;
+}
+
+unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
+				   struct rsnd_dai_stream *io,
+				   struct snd_pcm_runtime *runtime)
+{
+	struct rsnd_src *src;
+	unsigned int rate;
+
+	src = rsnd_mod_to_src(rsnd_io_to_mod_src(io));
+
+	/*
+	 * return convert rate if SRC is used,
+	 * otherwise, return runtime->rate as usual
+	 */
+	rate = rsnd_src_convert_rate(src);
+	if (!rate)
+		rate = runtime->rate;
+
+	return rate;
+}
+
+static int rsnd_src_set_convert_rate(struct rsnd_mod *mod,
+				     struct rsnd_dai *rdai,
+				     struct rsnd_dai_stream *io)
+{
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	u32 convert_rate = rsnd_src_convert_rate(src);
+	u32 adinr = runtime->channels;
+	u32 fsrate = 0;
+
+	if (convert_rate)
+		fsrate = 0x0400000 / convert_rate * runtime->rate;
+
+	/* set/clear soft reset */
+	rsnd_mod_write(mod, SRC_SWRSR, 0);
+	rsnd_mod_write(mod, SRC_SWRSR, 1);
+
+	/*
+	 * Initialize the operation of the SRC internal circuits
+	 * see rsnd_src_start()
+	 */
+	rsnd_mod_write(mod, SRC_SRCIR, 1);
+
+	/* Set channel number and output bit length */
+	switch (runtime->sample_bits) {
+	case 16:
+		adinr |= OTBL_16;
+		break;
+	case 32:
+		adinr |= OTBL_24;
+		break;
+	default:
+		return -EIO;
+	}
+	rsnd_mod_write(mod, SRC_ADINR, adinr);
+
+	/* Enable the initial value of IFS */
+	if (fsrate) {
+		rsnd_mod_write(mod, SRC_IFSCR, 1);
+
+		/* Set initial value of IFS */
+		rsnd_mod_write(mod, SRC_IFSVR, fsrate);
+	}
+
+	/* use DMA transfer */
+	rsnd_mod_write(mod, SRC_BUSIF_MODE, 1);
+
+	return 0;
+}
+
+static int rsnd_src_init(struct rsnd_mod *mod,
+			 struct rsnd_dai *rdai,
+			 struct rsnd_dai_stream *io)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+	clk_enable(src->clk);
+
+	return 0;
+}
+
+static int rsnd_src_quit(struct rsnd_mod *mod,
+			 struct rsnd_dai *rdai,
+			 struct rsnd_dai_stream *io)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+	clk_disable(src->clk);
+
+	return 0;
+}
+
+static int rsnd_src_start(struct rsnd_mod *mod,
+			  struct rsnd_dai *rdai,
+			  struct rsnd_dai_stream *io)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+	/*
+	 * Cancel the initialization and operate the SRC function
+	 * see rsnd_src_set_convert_rate()
+	 */
+	rsnd_mod_write(mod, SRC_SRCIR, 0);
+
+	if (rsnd_src_convert_rate(src))
+		rsnd_mod_write(mod, SRC_ROUTE_MODE0, 1);
+
+	return 0;
+}
+
+
+static int rsnd_src_stop(struct rsnd_mod *mod,
+			 struct rsnd_dai *rdai,
+			 struct rsnd_dai_stream *io)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+	if (rsnd_src_convert_rate(src))
+		rsnd_mod_write(mod, SRC_ROUTE_MODE0, 0);
+
+	return 0;
+}
+
+static struct rsnd_mod_ops rsnd_src_non_ops = {
+	.name	= "src (non)",
+};
+
+/*
+ *		Gen1 functions
+ */
+static int rsnd_src_set_route_gen1(struct rsnd_mod *mod,
+				   struct rsnd_dai *rdai,
+				   struct rsnd_dai_stream *io)
+{
+	struct src_route_config {
+		u32 mask;
+		int shift;
+	} routes[] = {
+		{ 0xF,  0, }, /* 0 */
+		{ 0xF,  4, }, /* 1 */
+		{ 0xF,  8, }, /* 2 */
+		{ 0x7, 12, }, /* 3 */
+		{ 0x7, 16, }, /* 4 */
+		{ 0x7, 20, }, /* 5 */
+		{ 0x7, 24, }, /* 6 */
+		{ 0x3, 28, }, /* 7 */
+		{ 0x3, 30, }, /* 8 */
+	};
+	u32 mask;
+	u32 val;
+	int id;
+
+	id = rsnd_mod_id(mod);
+	if (id < 0 || id >= ARRAY_SIZE(routes))
+		return -EIO;
+
+	/*
+	 * SRC_ROUTE_SELECT
+	 */
+	val = rsnd_dai_is_play(rdai, io) ? 0x1 : 0x2;
+	val = val		<< routes[id].shift;
+	mask = routes[id].mask	<< routes[id].shift;
+
+	rsnd_mod_bset(mod, SRC_ROUTE_SEL, mask, val);
+
+	return 0;
+}
+
+static int rsnd_src_set_convert_timing_gen1(struct rsnd_mod *mod,
+					    struct rsnd_dai *rdai,
+					    struct rsnd_dai_stream *io)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	u32 convert_rate = rsnd_src_convert_rate(src);
+	u32 mask;
+	u32 val;
+	int shift;
+	int id = rsnd_mod_id(mod);
+	int ret;
+
+	/*
+	 * SRC_TIMING_SELECT
+	 */
+	shift	= (id % 4) * 8;
+	mask	= 0x1F << shift;
+
+	/*
+	 * ADG is used as source clock if SRC was used,
+	 * then, SSI WS is used as destination clock.
+	 * SSI WS is used as source clock if SRC is not used
+	 * (when playback, source/destination become reverse when capture)
+	 */
+	ret = 0;
+	if (convert_rate) {
+		/* use ADG */
+		val = 0;
+		ret = rsnd_adg_set_convert_clk_gen1(priv, mod,
+						    runtime->rate,
+						    convert_rate);
+	} else if (8 == id) {
+		/* use SSI WS, but SRU8 is special */
+		val = id << shift;
+	} else {
+		/* use SSI WS */
+		val = (id + 1) << shift;
+	}
+
+	if (ret < 0)
+		return ret;
+
+	switch (id / 4) {
+	case 0:
+		rsnd_mod_bset(mod, SRC_TMG_SEL0, mask, val);
+		break;
+	case 1:
+		rsnd_mod_bset(mod, SRC_TMG_SEL1, mask, val);
+		break;
+	case 2:
+		rsnd_mod_bset(mod, SRC_TMG_SEL2, mask, val);
+		break;
+	}
+
+	return 0;
+}
+
+static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod,
+					  struct rsnd_dai *rdai,
+					  struct rsnd_dai_stream *io)
+{
+	int ret;
+
+	ret = rsnd_src_set_convert_rate(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	/* Select SRC mode (fixed value) */
+	rsnd_mod_write(mod, SRC_SRCCR, 0x00010110);
+
+	/* Set the restriction value of the FS ratio (98%) */
+	rsnd_mod_write(mod, SRC_MNFSR,
+		       rsnd_mod_read(mod, SRC_IFSVR) / 100 * 98);
+
+	/* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
+
+	return 0;
+}
+
+static int rsnd_src_init_gen1(struct rsnd_mod *mod,
+			      struct rsnd_dai *rdai,
+			      struct rsnd_dai_stream *io)
+{
+	int ret;
+
+	ret = rsnd_src_init(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	ret = rsnd_src_set_route_gen1(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	ret = rsnd_src_set_convert_rate_gen1(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	ret = rsnd_src_set_convert_timing_gen1(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int rsnd_src_start_gen1(struct rsnd_mod *mod,
+			       struct rsnd_dai *rdai,
+			       struct rsnd_dai_stream *io)
+{
+	int id = rsnd_mod_id(mod);
+
+	rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), (1 << id));
+
+	return rsnd_src_start(mod, rdai, io);
+}
+
+static int rsnd_src_stop_gen1(struct rsnd_mod *mod,
+			      struct rsnd_dai *rdai,
+			      struct rsnd_dai_stream *io)
+{
+	int id = rsnd_mod_id(mod);
+
+	rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), 0);
+
+	return rsnd_src_stop(mod, rdai, io);
+}
+
+static struct rsnd_mod_ops rsnd_src_gen1_ops = {
+	.name	= "sru (gen1)",
+	.init	= rsnd_src_init_gen1,
+	.quit	= rsnd_src_quit,
+	.start	= rsnd_src_start_gen1,
+	.stop	= rsnd_src_stop_gen1,
+};
+
+/*
+ *		Gen2 functions
+ */
+static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod,
+					  struct rsnd_dai *rdai,
+					  struct rsnd_dai_stream *io)
+{
+	int ret;
+
+	ret = rsnd_src_set_convert_rate(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	rsnd_mod_write(mod, SSI_BUSIF_ADINR, rsnd_mod_read(mod, SRC_ADINR));
+	rsnd_mod_write(mod, SSI_BUSIF_MODE,  rsnd_mod_read(mod, SRC_BUSIF_MODE));
+
+	rsnd_mod_write(mod, SRC_SRCCR, 0x00011110);
+
+	rsnd_mod_write(mod, SRC_BSDSR, 0x01800000);
+	rsnd_mod_write(mod, SRC_BSISR, 0x00100060);
+
+	return 0;
+}
+
+static int rsnd_src_set_convert_timing_gen2(struct rsnd_mod *mod,
+					    struct rsnd_dai *rdai,
+					    struct rsnd_dai_stream *io)
+{
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	u32 convert_rate = rsnd_src_convert_rate(src);
+	int ret;
+
+	if (convert_rate)
+		ret = rsnd_adg_set_convert_clk_gen2(mod, rdai, io,
+						    runtime->rate,
+						    convert_rate);
+	else
+		ret = rsnd_adg_set_convert_timing_gen2(mod, rdai, io);
+
+	return ret;
+}
+
+static int rsnd_src_probe_gen2(struct rsnd_mod *mod,
+			       struct rsnd_dai *rdai,
+			       struct rsnd_dai_stream *io)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	struct rsnd_mod *ssi = rsnd_ssi_mod_get(priv, rsnd_mod_id(mod));
+	struct device *dev = rsnd_priv_to_dev(priv);
+	int ret;
+	int is_play;
+
+	if (info->dai_info)
+		is_play = rsnd_info_is_playback(priv, src);
+	else
+		is_play = rsnd_ssi_is_play(ssi);
+
+	ret = rsnd_dma_init(priv,
+			    rsnd_mod_to_dma(mod),
+			    is_play,
+			    src->info->dma_id);
+	if (ret < 0)
+		dev_err(dev, "SRC DMA failed\n");
+
+	return ret;
+}
+
+static int rsnd_src_remove_gen2(struct rsnd_mod *mod,
+				struct rsnd_dai *rdai,
+				struct rsnd_dai_stream *io)
+{
+	rsnd_dma_quit(rsnd_mod_to_priv(mod), rsnd_mod_to_dma(mod));
+
+	return 0;
+}
+
+static int rsnd_src_init_gen2(struct rsnd_mod *mod,
+			      struct rsnd_dai *rdai,
+			      struct rsnd_dai_stream *io)
+{
+	int ret;
+
+	ret = rsnd_src_init(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	ret = rsnd_src_set_convert_rate_gen2(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	ret = rsnd_src_set_convert_timing_gen2(mod, rdai, io);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int rsnd_src_start_gen2(struct rsnd_mod *mod,
+			       struct rsnd_dai *rdai,
+			       struct rsnd_dai_stream *io)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+	rsnd_dma_start(rsnd_mod_to_dma(&src->mod));
+
+	rsnd_mod_write(mod, SSI_CTRL, 0x1);
+	rsnd_mod_write(mod, SRC_CTRL, 0x11);
+
+	return rsnd_src_start(mod, rdai, io);
+}
+
+static int rsnd_src_stop_gen2(struct rsnd_mod *mod,
+			      struct rsnd_dai *rdai,
+			      struct rsnd_dai_stream *io)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+	rsnd_mod_write(mod, SSI_CTRL, 0);
+	rsnd_mod_write(mod, SRC_CTRL, 0);
+
+	rsnd_dma_stop(rsnd_mod_to_dma(&src->mod));
+
+	return rsnd_src_stop(mod, rdai, io);
+}
+
+static struct rsnd_mod_ops rsnd_src_gen2_ops = {
+	.name	= "src (gen2)",
+	.probe	= rsnd_src_probe_gen2,
+	.remove	= rsnd_src_remove_gen2,
+	.init	= rsnd_src_init_gen2,
+	.quit	= rsnd_src_quit,
+	.start	= rsnd_src_start_gen2,
+	.stop	= rsnd_src_stop_gen2,
+};
+
+struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
+{
+	if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
+		id = 0;
+
+	return &((struct rsnd_src *)(priv->src) + id)->mod;
+}
+
+int rsnd_src_probe(struct platform_device *pdev,
+		   struct rsnd_priv *priv)
+{
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_src *src;
+	struct rsnd_mod_ops *ops;
+	struct clk *clk;
+	char name[RSND_SRC_NAME_SIZE];
+	int i, nr;
+
+	/*
+	 * init SRC
+	 */
+	nr	= info->src_info_nr;
+	if (!nr)
+		return 0;
+
+	src	= devm_kzalloc(dev, sizeof(*src) * nr, GFP_KERNEL);
+	if (!src) {
+		dev_err(dev, "SRC allocate failed\n");
+		return -ENOMEM;
+	}
+
+	priv->src_nr	= nr;
+	priv->src	= src;
+
+	for_each_rsnd_src(src, priv, i) {
+		snprintf(name, RSND_SRC_NAME_SIZE, "src.%d", i);
+
+		clk = devm_clk_get(dev, name);
+		if (IS_ERR(clk)) {
+			snprintf(name, RSND_SRC_NAME_SIZE, "scu.%d", i);
+			clk = devm_clk_get(dev, name);
+		}
+
+		if (IS_ERR(clk))
+			return PTR_ERR(clk);
+
+		src->info = &info->src_info[i];
+		src->clk = clk;
+
+		ops = &rsnd_src_non_ops;
+		if (rsnd_src_hpbif_is_enable(src)) {
+			if (rsnd_is_gen1(priv))
+				ops = &rsnd_src_gen1_ops;
+			if (rsnd_is_gen2(priv))
+				ops = &rsnd_src_gen2_ops;
+		}
+
+		rsnd_mod_init(priv, &src->mod, ops, RSND_MOD_SRC, i);
+
+		dev_dbg(dev, "SRC%d probed\n", i);
+	}
+
+	return 0;
+}

sound/soc/sh/rcar/ssi.c

@@ -64,108 +64,29 @@ struct rsnd_ssi {
 	struct rsnd_mod mod;
 
 	struct rsnd_dai *rdai;
-	struct rsnd_dai_stream *io;
 	u32 cr_own;
 	u32 cr_clk;
 	u32 cr_etc;
 	int err;
-	int dma_offset;
 	unsigned int usrcnt;
 	unsigned int rate;
 };
 
-struct rsnd_ssiu {
-	u32 ssi_mode0;
-	u32 ssi_mode1;
-
-	int ssi_nr;
-	struct rsnd_ssi *ssi;
-};
-
 #define for_each_rsnd_ssi(pos, priv, i)					\
 	for (i = 0;							\
 	     (i < rsnd_ssi_nr(priv)) &&					\
-		((pos) = ((struct rsnd_ssiu *)((priv)->ssiu))->ssi + i); \
+		((pos) = ((struct rsnd_ssi *)(priv)->ssi + i));		\
 	     i++)
 
-#define rsnd_ssi_nr(priv) (((struct rsnd_ssiu *)((priv)->ssiu))->ssi_nr)
+#define rsnd_ssi_nr(priv) ((priv)->ssi_nr)
 #define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod)
 #define rsnd_dma_to_ssi(dma)  rsnd_mod_to_ssi(rsnd_dma_to_mod(dma))
 #define rsnd_ssi_pio_available(ssi) ((ssi)->info->pio_irq > 0)
 #define rsnd_ssi_dma_available(ssi) \
 	rsnd_dma_available(rsnd_mod_to_dma(&(ssi)->mod))
 #define rsnd_ssi_clk_from_parent(ssi) ((ssi)->parent)
-#define rsnd_rdai_is_clk_master(rdai) ((rdai)->clk_master)
 #define rsnd_ssi_mode_flags(p) ((p)->info->flags)
 #define rsnd_ssi_dai_id(ssi) ((ssi)->info->dai_id)
-#define rsnd_ssi_to_ssiu(ssi)\
-	(((struct rsnd_ssiu *)((ssi) - rsnd_mod_id(&(ssi)->mod))) - 1)
-
-static void rsnd_ssi_mode_set(struct rsnd_priv *priv,
-			      struct rsnd_dai *rdai,
-			      struct rsnd_ssi *ssi)
-{
-	struct device *dev = rsnd_priv_to_dev(priv);
-	struct rsnd_mod *scu;
-	struct rsnd_ssiu *ssiu = rsnd_ssi_to_ssiu(ssi);
-	int id = rsnd_mod_id(&ssi->mod);
-	u32 flags;
-	u32 val;
-
-	scu   = rsnd_scu_mod_get(priv, rsnd_mod_id(&ssi->mod));
-
-	/*
-	 * SSI_MODE0
-	 */
-
-	/* see also BUSIF_MODE */
-	if (rsnd_scu_hpbif_is_enable(scu)) {
-		ssiu->ssi_mode0 &= ~(1 << id);
-		dev_dbg(dev, "SSI%d uses DEPENDENT mode\n", id);
-	} else {
-		ssiu->ssi_mode0 |= (1 << id);
-		dev_dbg(dev, "SSI%d uses INDEPENDENT mode\n", id);
-	}
-
-	/*
-	 * SSI_MODE1
-	 */
-#define ssi_parent_set(p, sync, adg, ext)		\
-	do {						\
-		ssi->parent = ssiu->ssi + p;		\
-		if (rsnd_rdai_is_clk_master(rdai))	\
-			val = adg;			\
-		else					\
-			val = ext;			\
-		if (flags & RSND_SSI_SYNC)		\
-			val |= sync;			\
-	} while (0)
-
-	flags = rsnd_ssi_mode_flags(ssi);
-	if (flags & RSND_SSI_CLK_PIN_SHARE) {
-
-		val = 0;
-		switch (id) {
-		case 1:
-			ssi_parent_set(0, (1 << 4), (0x2 << 0), (0x1 << 0));
-			break;
-		case 2:
-			ssi_parent_set(0, (1 << 4), (0x2 << 2), (0x1 << 2));
-			break;
-		case 4:
-			ssi_parent_set(3, (1 << 20), (0x2 << 16), (0x1 << 16));
-			break;
-		case 8:
-			ssi_parent_set(7, 0, 0, 0);
-			break;
-		}
-
-		ssiu->ssi_mode1 |= val;
-	}
-
-	rsnd_mod_write(&ssi->mod, SSI_MODE0, ssiu->ssi_mode0);
-	rsnd_mod_write(&ssi->mod, SSI_MODE1, ssiu->ssi_mode1);
-}
 
 static void rsnd_ssi_status_check(struct rsnd_mod *mod,
 				  u32 bit)
@@ -200,7 +121,7 @@ static int rsnd_ssi_master_clk_start(struct rsnd_ssi *ssi,
 		1, 2, 4, 8, 16, 6, 12,
 	};
 	unsigned int main_rate;
-	unsigned int rate = rsnd_scu_get_ssi_rate(priv, &ssi->mod, runtime);
+	unsigned int rate = rsnd_src_get_ssi_rate(priv, io, runtime);
 
 	/*
 	 * Find best clock, and try to start ADG
@@ -252,7 +173,7 @@ static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi,
 	if (0 == ssi->usrcnt) {
 		clk_enable(ssi->clk);
 
-		if (rsnd_rdai_is_clk_master(rdai)) {
+		if (rsnd_dai_is_clk_master(rdai)) {
 			if (rsnd_ssi_clk_from_parent(ssi))
 				rsnd_ssi_hw_start(ssi->parent, rdai, io);
 			else
@@ -302,7 +223,7 @@ static void rsnd_ssi_hw_stop(struct rsnd_ssi *ssi,
 		rsnd_mod_write(&ssi->mod, SSICR, cr);	/* disabled all */
 		rsnd_ssi_status_check(&ssi->mod, IIRQ);
 
-		if (rsnd_rdai_is_clk_master(rdai)) {
+		if (rsnd_dai_is_clk_master(rdai)) {
 			if (rsnd_ssi_clk_from_parent(ssi))
 				rsnd_ssi_hw_stop(ssi->parent, rdai);
 			else
@@ -323,8 +244,6 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 			 struct rsnd_dai_stream *io)
 {
 	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct device *dev = rsnd_priv_to_dev(priv);
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	u32 cr;
 
@@ -365,13 +284,10 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 	 * set ssi parameter
 	 */
 	ssi->rdai	= rdai;
-	ssi->io		= io;
 	ssi->cr_own	= cr;
 	ssi->err	= -1; /* ignore 1st error */
 
-	rsnd_ssi_mode_set(priv, rdai, ssi);
-
-	dev_dbg(dev, "%s.%d init\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
+	rsnd_src_ssi_mode_init(mod, rdai, io);
 
 	return 0;
 }
@@ -384,13 +300,10 @@ static int rsnd_ssi_quit(struct rsnd_mod *mod,
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
 
-	dev_dbg(dev, "%s.%d quit\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
-
 	if (ssi->err > 0)
 		dev_warn(dev, "ssi under/over flow err = %d\n", ssi->err);
 
 	ssi->rdai	= NULL;
-	ssi->io		= NULL;
 	ssi->cr_own	= 0;
 	ssi->err	= 0;
 
@@ -414,8 +327,9 @@ static void rsnd_ssi_record_error(struct rsnd_ssi *ssi, u32 status)
 static irqreturn_t rsnd_ssi_pio_interrupt(int irq, void *data)
 {
 	struct rsnd_ssi *ssi = data;
-	struct rsnd_dai_stream *io = ssi->io;
-	u32 status = rsnd_mod_read(&ssi->mod, SSISR);
+	struct rsnd_mod *mod = &ssi->mod;
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+	u32 status = rsnd_mod_read(mod, SSISR);
 	irqreturn_t ret = IRQ_NONE;
 
 	if (io && (status & DIRQ)) {
@@ -432,9 +346,9 @@ static irqreturn_t rsnd_ssi_pio_interrupt(int irq, void *data)
 		 * see rsnd_ssi_init()
 		 */
 		if (rsnd_dai_is_play(rdai, io))
-			rsnd_mod_write(&ssi->mod, SSITDR, *buf);
+			rsnd_mod_write(mod, SSITDR, *buf);
 		else
-			*buf = rsnd_mod_read(&ssi->mod, SSIRDR);
+			*buf = rsnd_mod_read(mod, SSIRDR);
 
 		rsnd_dai_pointer_update(io, sizeof(*buf));
 
@@ -444,25 +358,39 @@ static irqreturn_t rsnd_ssi_pio_interrupt(int irq, void *data)
 	return ret;
 }
 
-static int rsnd_ssi_pio_start(struct rsnd_mod *mod,
+static int rsnd_ssi_pio_probe(struct rsnd_mod *mod,
 			      struct rsnd_dai *rdai,
 			      struct rsnd_dai_stream *io)
 {
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+	int irq = ssi->info->pio_irq;
+	int ret;
+
+	ret = devm_request_irq(dev, irq,
+			       rsnd_ssi_pio_interrupt,
+			       IRQF_SHARED,
+			       dev_name(dev), ssi);
+	if (ret)
+		dev_err(dev, "SSI request interrupt failed\n");
+
+	return ret;
+}
+
+static int rsnd_ssi_pio_start(struct rsnd_mod *mod,
+			      struct rsnd_dai *rdai,
+			      struct rsnd_dai_stream *io)
+{
+	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
 
 	/* enable PIO IRQ */
 	ssi->cr_etc = UIEN | OIEN | DIEN;
 
-	/* enable PIO interrupt if gen2 */
-	if (rsnd_is_gen2(priv))
-		rsnd_mod_write(&ssi->mod, INT_ENABLE, 0x0f000000);
+	rsnd_src_enable_ssi_irq(mod, rdai, io);
 
 	rsnd_ssi_hw_start(ssi, rdai, io);
 
-	dev_dbg(dev, "%s.%d start\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
-
 	return 0;
 }
 
@@ -470,12 +398,8 @@ static int rsnd_ssi_pio_stop(struct rsnd_mod *mod,
 			     struct rsnd_dai *rdai,
 			     struct rsnd_dai_stream *io)
 {
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
 
-	dev_dbg(dev, "%s.%d stop\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
-
 	ssi->cr_etc = 0;
 
 	rsnd_ssi_hw_stop(ssi, rdai);
@@ -485,35 +409,46 @@ static int rsnd_ssi_pio_stop(struct rsnd_mod *mod,
 
 static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
 	.name	= "ssi (pio)",
+	.probe	= rsnd_ssi_pio_probe,
 	.init	= rsnd_ssi_init,
 	.quit	= rsnd_ssi_quit,
 	.start	= rsnd_ssi_pio_start,
 	.stop	= rsnd_ssi_pio_stop,
 };
 
-static int rsnd_ssi_dma_inquiry(struct rsnd_dma *dma, dma_addr_t *buf, int *len)
+static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
+			  struct rsnd_dai *rdai,
+			  struct rsnd_dai_stream *io)
 {
-	struct rsnd_ssi *ssi = rsnd_dma_to_ssi(dma);
-	struct rsnd_dai_stream *io = ssi->io;
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+	struct device *dev = rsnd_priv_to_dev(priv);
+	int dma_id = ssi->info->dma_id;
+	int is_play;
+	int ret;
 
-	*len = io->byte_per_period;
-	*buf = runtime->dma_addr +
-		rsnd_dai_pointer_offset(io, ssi->dma_offset + *len);
-	ssi->dma_offset = *len; /* it cares A/B plane */
+	if (info->dai_info)
+		is_play = rsnd_info_is_playback(priv, ssi);
+	else
+		is_play = rsnd_ssi_is_play(&ssi->mod);
 
-	return 0;
-}
+	ret = rsnd_dma_init(
+		priv, rsnd_mod_to_dma(mod),
+		is_play,
+		dma_id);
 
-static int rsnd_ssi_dma_complete(struct rsnd_dma *dma)
-{
-	struct rsnd_ssi *ssi = rsnd_dma_to_ssi(dma);
-	struct rsnd_dai_stream *io = ssi->io;
-	u32 status = rsnd_mod_read(&ssi->mod, SSISR);
+	if (ret < 0)
+		dev_err(dev, "SSI DMA failed\n");
 
-	rsnd_ssi_record_error(ssi, status);
+	return ret;
+}
 
-	rsnd_dai_pointer_update(ssi->io, io->byte_per_period);
+static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
+			       struct rsnd_dai *rdai,
+			       struct rsnd_dai_stream *io)
+{
+	rsnd_dma_quit(rsnd_mod_to_priv(mod), rsnd_mod_to_dma(mod));
 
 	return 0;
 }
@@ -527,14 +462,13 @@ static int rsnd_ssi_dma_start(struct rsnd_mod *mod,
 
 	/* enable DMA transfer */
 	ssi->cr_etc = DMEN;
-	ssi->dma_offset = 0;
 
 	rsnd_dma_start(dma);
 
 	rsnd_ssi_hw_start(ssi, ssi->rdai, io);
 
 	/* enable WS continue */
-	if (rsnd_rdai_is_clk_master(rdai))
+	if (rsnd_dai_is_clk_master(rdai))
 		rsnd_mod_write(&ssi->mod, SSIWSR, CONT);
 
 	return 0;
@@ -549,6 +483,8 @@ static int rsnd_ssi_dma_stop(struct rsnd_mod *mod,
 
 	ssi->cr_etc = 0;
 
+	rsnd_ssi_record_error(ssi, rsnd_mod_read(mod, SSISR));
+
 	rsnd_ssi_hw_stop(ssi, rdai);
 
 	rsnd_dma_stop(dma);
@@ -558,6 +494,8 @@ static int rsnd_ssi_dma_stop(struct rsnd_mod *mod,
 
 static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
 	.name	= "ssi (dma)",
+	.probe	= rsnd_ssi_dma_probe,
+	.remove	= rsnd_ssi_dma_remove,
 	.init	= rsnd_ssi_init,
 	.quit	= rsnd_ssi_quit,
 	.start	= rsnd_ssi_dma_start,
@@ -567,24 +505,8 @@ static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
 /*
  *		Non SSI
  */
-static int rsnd_ssi_non(struct rsnd_mod *mod,
-			struct rsnd_dai *rdai,
-			struct rsnd_dai_stream *io)
-{
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct device *dev = rsnd_priv_to_dev(priv);
-
-	dev_dbg(dev, "%s\n", __func__);
-
-	return 0;
-}
-
 static struct rsnd_mod_ops rsnd_ssi_non_ops = {
 	.name	= "ssi (non)",
-	.init	= rsnd_ssi_non,
-	.quit	= rsnd_ssi_non,
-	.start	= rsnd_ssi_non,
-	.stop	= rsnd_ssi_non,
 };
 
 /*
@@ -593,16 +515,30 @@ static struct rsnd_mod_ops rsnd_ssi_non_ops = {
 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
 					  int dai_id, int is_play)
 {
+	struct rsnd_dai_platform_info *dai_info = NULL;
+	struct rsnd_dai_path_info *path_info = NULL;
+	struct rsnd_ssi_platform_info *target_info = NULL;
 	struct rsnd_ssi *ssi;
 	int i, has_play;
 
+	if (priv->rdai)
+		dai_info = priv->rdai[dai_id].info;
+	if (dai_info)
+		path_info = (is_play) ? &dai_info->playback : &dai_info->capture;
+	if (path_info)
+		target_info = path_info->ssi;
+
 	is_play = !!is_play;
 
 	for_each_rsnd_ssi(ssi, priv, i) {
+		if (target_info == ssi->info)
+			return &ssi->mod;
+
+		/* for compatible */
 		if (rsnd_ssi_dai_id(ssi) != dai_id)
 			continue;
 
-		has_play = !!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_PLAY);
+		has_play = rsnd_ssi_is_play(&ssi->mod);
 
 		if (is_play == has_play)
 			return &ssi->mod;
@@ -616,36 +552,66 @@ struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id)
 	if (WARN_ON(id < 0 || id >= rsnd_ssi_nr(priv)))
 		id = 0;
 
-	return &(((struct rsnd_ssiu *)(priv->ssiu))->ssi + id)->mod;
+	return &((struct rsnd_ssi *)(priv->ssi) + id)->mod;
+}
+
+int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
+{
+	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+	return !!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_CLK_PIN_SHARE);
+}
+
+int rsnd_ssi_is_play(struct rsnd_mod *mod)
+{
+	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+	return !!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_PLAY);
+}
+
+static void rsnd_ssi_parent_clk_setup(struct rsnd_priv *priv, struct rsnd_ssi *ssi)
+{
+	if (!rsnd_ssi_is_pin_sharing(&ssi->mod))
+		return;
+
+	switch (rsnd_mod_id(&ssi->mod)) {
+	case 1:
+	case 2:
+		ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 0));
+		break;
+	case 4:
+		ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 3));
+		break;
+	case 8:
+		ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 7));
+		break;
+	}
 }
 
 int rsnd_ssi_probe(struct platform_device *pdev,
-		   struct rcar_snd_info *info,
 		   struct rsnd_priv *priv)
 {
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 	struct rsnd_ssi_platform_info *pinfo;
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_mod_ops *ops;
 	struct clk *clk;
-	struct rsnd_ssiu *ssiu;
 	struct rsnd_ssi *ssi;
 	char name[RSND_SSI_NAME_SIZE];
-	int i, nr, ret;
+	int i, nr;
 
 	/*
 	 *	init SSI
 	 */
 	nr	= info->ssi_info_nr;
-	ssiu	= devm_kzalloc(dev, sizeof(*ssiu) + (sizeof(*ssi) * nr),
-			       GFP_KERNEL);
-	if (!ssiu) {
+	ssi	= devm_kzalloc(dev, sizeof(*ssi) * nr, GFP_KERNEL);
+	if (!ssi) {
 		dev_err(dev, "SSI allocate failed\n");
 		return -ENOMEM;
 	}
 
-	priv->ssiu	= ssiu;
-	ssiu->ssi	= (struct rsnd_ssi *)(ssiu + 1);
-	ssiu->ssi_nr	= nr;
+	priv->ssi	= ssi;
+	priv->ssi_nr	= nr;
 
 	for_each_rsnd_ssi(ssi, priv, i) {
 		pinfo = &info->ssi_info[i];
@@ -660,61 +626,15 @@ int rsnd_ssi_probe(struct platform_device *pdev,
 		ssi->clk	= clk;
 
 		ops = &rsnd_ssi_non_ops;
+		if (pinfo->dma_id > 0)
+			ops = &rsnd_ssi_dma_ops;
+		else if (rsnd_ssi_pio_available(ssi))
+			ops = &rsnd_ssi_pio_ops;
 
-		/*
-		 * SSI DMA case
-		 */
-		if (pinfo->dma_id > 0) {
-			ret = rsnd_dma_init(
-				priv, rsnd_mod_to_dma(&ssi->mod),
-				(rsnd_ssi_mode_flags(ssi) & RSND_SSI_PLAY),
-				pinfo->dma_id,
-				rsnd_ssi_dma_inquiry,
-				rsnd_ssi_dma_complete);
-			if (ret < 0)
-				dev_info(dev, "SSI DMA failed. try PIO transter\n");
-			else
-				ops	= &rsnd_ssi_dma_ops;
-
-			dev_dbg(dev, "SSI%d use DMA transfer\n", i);
-		}
-
-		/*
-		 * SSI PIO case
-		 */
-		if (!rsnd_ssi_dma_available(ssi) &&
-		     rsnd_ssi_pio_available(ssi)) {
-			ret = devm_request_irq(dev, pinfo->pio_irq,
-					       &rsnd_ssi_pio_interrupt,
-					       IRQF_SHARED,
-					       dev_name(dev), ssi);
-			if (ret) {
-				dev_err(dev, "SSI request interrupt failed\n");
-				return ret;
-			}
-
-			ops	= &rsnd_ssi_pio_ops;
+		rsnd_mod_init(priv, &ssi->mod, ops, RSND_MOD_SSI, i);
 
-			dev_dbg(dev, "SSI%d use PIO transfer\n", i);
-		}
-
-		rsnd_mod_init(priv, &ssi->mod, ops, i);
+		rsnd_ssi_parent_clk_setup(priv, ssi);
 	}
 
-	dev_dbg(dev, "ssi probed\n");
-
 	return 0;
 }
-
-void rsnd_ssi_remove(struct platform_device *pdev,
-		   struct rsnd_priv *priv)
-{
-	struct rsnd_ssi *ssi;
-	int i;
-
-	for_each_rsnd_ssi(ssi, priv, i) {
-		if (rsnd_ssi_dma_available(ssi))
-			rsnd_dma_quit(priv, rsnd_mod_to_dma(&ssi->mod));
-	}
-
-}

sound/soc/soc-core.c

@@ -3618,6 +3618,30 @@ int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 }
 EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
 
+/**
+ * snd_soc_of_xlate_tdm_slot - generate tx/rx slot mask.
+ * @slots: Number of slots in use.
+ * @tx_mask: bitmask representing active TX slots.
+ * @rx_mask: bitmask representing active RX slots.
+ *
+ * Generates the TDM tx and rx slot default masks for DAI.
+ */
+static int snd_soc_of_xlate_tdm_slot_mask(unsigned int slots,
+					  unsigned int *tx_mask,
+					  unsigned int *rx_mask)
+{
+	if (*tx_mask || *rx_mask)
+		return 0;
+
+	if (!slots)
+		return -EINVAL;
+
+	*tx_mask = (1 << slots) - 1;
+	*rx_mask = (1 << slots) - 1;
+
+	return 0;
+}
+
 /**
  * snd_soc_dai_set_tdm_slot - configure DAI TDM.
  * @dai: DAI
@@ -3632,6 +3656,12 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
 	unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
 {
+	if (dai->driver && dai->driver->ops->of_xlate_tdm_slot_mask)
+		dai->driver->ops->of_xlate_tdm_slot_mask(slots,
+						&tx_mask, &rx_mask);
+	else
+		snd_soc_of_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
+
 	if (dai->driver && dai->driver->ops->set_tdm_slot)
 		return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
 				slots, slot_width);
@@ -4351,6 +4381,122 @@ int snd_soc_of_parse_card_name(struct snd_soc_card *card,
 }
 EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
 
+static const struct snd_soc_dapm_widget simple_widgets[] = {
+	SND_SOC_DAPM_MIC("Microphone", NULL),
+	SND_SOC_DAPM_LINE("Line", NULL),
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
+					  const char *propname)
+{
+	struct device_node *np = card->dev->of_node;
+	struct snd_soc_dapm_widget *widgets;
+	const char *template, *wname;
+	int i, j, num_widgets, ret;
+
+	num_widgets = of_property_count_strings(np, propname);
+	if (num_widgets < 0) {
+		dev_err(card->dev,
+			"ASoC: Property '%s' does not exist\n",	propname);
+		return -EINVAL;
+	}
+	if (num_widgets & 1) {
+		dev_err(card->dev,
+			"ASoC: Property '%s' length is not even\n", propname);
+		return -EINVAL;
+	}
+
+	num_widgets /= 2;
+	if (!num_widgets) {
+		dev_err(card->dev, "ASoC: Property '%s's length is zero\n",
+			propname);
+		return -EINVAL;
+	}
+
+	widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets),
+			       GFP_KERNEL);
+	if (!widgets) {
+		dev_err(card->dev,
+			"ASoC: Could not allocate memory for widgets\n");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < num_widgets; i++) {
+		ret = of_property_read_string_index(np, propname,
+			2 * i, &template);
+		if (ret) {
+			dev_err(card->dev,
+				"ASoC: Property '%s' index %d read error:%d\n",
+				propname, 2 * i, ret);
+			return -EINVAL;
+		}
+
+		for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) {
+			if (!strncmp(template, simple_widgets[j].name,
+				     strlen(simple_widgets[j].name))) {
+				widgets[i] = simple_widgets[j];
+				break;
+			}
+		}
+
+		if (j >= ARRAY_SIZE(simple_widgets)) {
+			dev_err(card->dev,
+				"ASoC: DAPM widget '%s' is not supported\n",
+				template);
+			return -EINVAL;
+		}
+
+		ret = of_property_read_string_index(np, propname,
+						    (2 * i) + 1,
+						    &wname);
+		if (ret) {
+			dev_err(card->dev,
+				"ASoC: Property '%s' index %d read error:%d\n",
+				propname, (2 * i) + 1, ret);
+			return -EINVAL;
+		}
+
+		widgets[i].name = wname;
+	}
+
+	card->dapm_widgets = widgets;
+	card->num_dapm_widgets = num_widgets;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets);
+
+int snd_soc_of_parse_tdm_slot(struct device_node *np,
+			      unsigned int *slots,
+			      unsigned int *slot_width)
+{
+	u32 val;
+	int ret;
+
+	if (of_property_read_bool(np, "dai-tdm-slot-num")) {
+		ret = of_property_read_u32(np, "dai-tdm-slot-num", &val);
+		if (ret)
+			return ret;
+
+		if (slots)
+			*slots = val;
+	}
+
+	if (of_property_read_bool(np, "dai-tdm-slot-width")) {
+		ret = of_property_read_u32(np, "dai-tdm-slot-width", &val);
+		if (ret)
+			return ret;
+
+		if (slot_width)
+			*slot_width = val;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot);
+
 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
 				   const char *propname)
 {