Commit 7c31335a authored by Maruthi Srinivas Bayyavarapu's avatar Maruthi Srinivas Bayyavarapu Committed by Mark Brown

ASoC: AMD: add AMD ASoC ACP 2.x DMA driver

ACP IP has internal DMA controller with multiple channels which
can be programmed in cyclic/non cyclic manner. ACP can generate
interrupt upon completion of DMA transfer, if required.
The PCM driver provides the platform DMA component to ALSA core.
Signed-off-by: default avatarMaruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarMurali Krishna Vemuri <murali-krishna.vemuri@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2fa86e94
...@@ -38,6 +38,7 @@ config SND_SOC_TOPOLOGY ...@@ -38,6 +38,7 @@ config SND_SOC_TOPOLOGY
# All the supported SoCs # All the supported SoCs
source "sound/soc/adi/Kconfig" source "sound/soc/adi/Kconfig"
source "sound/soc/amd/Kconfig"
source "sound/soc/atmel/Kconfig" source "sound/soc/atmel/Kconfig"
source "sound/soc/au1x/Kconfig" source "sound/soc/au1x/Kconfig"
source "sound/soc/bcm/Kconfig" source "sound/soc/bcm/Kconfig"
......
...@@ -18,6 +18,7 @@ obj-$(CONFIG_SND_SOC) += snd-soc-core.o ...@@ -18,6 +18,7 @@ obj-$(CONFIG_SND_SOC) += snd-soc-core.o
obj-$(CONFIG_SND_SOC) += codecs/ obj-$(CONFIG_SND_SOC) += codecs/
obj-$(CONFIG_SND_SOC) += generic/ obj-$(CONFIG_SND_SOC) += generic/
obj-$(CONFIG_SND_SOC) += adi/ obj-$(CONFIG_SND_SOC) += adi/
obj-$(CONFIG_SND_SOC) += amd/
obj-$(CONFIG_SND_SOC) += atmel/ obj-$(CONFIG_SND_SOC) += atmel/
obj-$(CONFIG_SND_SOC) += au1x/ obj-$(CONFIG_SND_SOC) += au1x/
obj-$(CONFIG_SND_SOC) += bcm/ obj-$(CONFIG_SND_SOC) += bcm/
......
config SND_SOC_AMD_ACP
tristate "AMD Audio Coprocessor support"
help
This option enables ACP DMA support on AMD platform.
snd-soc-acp-pcm-objs := acp-pcm-dma.o
obj-$(CONFIG_SND_SOC_AMD_ACP) += snd-soc-acp-pcm.o
This diff is collapsed.
#ifndef __ACP_HW_H
#define __ACP_HW_H
#include "include/acp_2_2_d.h"
#include "include/acp_2_2_sh_mask.h"
#define ACP_PAGE_SIZE_4K_ENABLE 0x02
#define ACP_PLAYBACK_PTE_OFFSET 10
#define ACP_CAPTURE_PTE_OFFSET 0
#define ACP_GARLIC_CNTL_DEFAULT 0x00000FB4
#define ACP_ONION_CNTL_DEFAULT 0x00000FB4
#define ACP_PHYSICAL_BASE 0x14000
/* Playback SRAM address (as a destination in dma descriptor) */
#define ACP_SHARED_RAM_BANK_1_ADDRESS 0x4002000
/* Capture SRAM address (as a source in dma descriptor) */
#define ACP_SHARED_RAM_BANK_5_ADDRESS 0x400A000
#define ACP_DMA_RESET_TIME 10000
#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
#define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
#define ACP_DMA_COMPLETE_TIME_OUT_VALUE 0x000000FF
#define ACP_SRAM_BASE_ADDRESS 0x4000000
#define ACP_DAGB_GRP_SRAM_BASE_ADDRESS 0x4001000
#define ACP_DAGB_GRP_SRBM_SRAM_BASE_OFFSET 0x1000
#define ACP_INTERNAL_APERTURE_WINDOW_0_ADDRESS 0x00000000
#define ACP_INTERNAL_APERTURE_WINDOW_4_ADDRESS 0x01800000
#define TO_ACP_I2S_1 0x2
#define TO_ACP_I2S_2 0x4
#define FROM_ACP_I2S_1 0xa
#define FROM_ACP_I2S_2 0xb
#define ACP_TILE_ON_MASK 0x03
#define ACP_TILE_OFF_MASK 0x02
#define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
#define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
#define ACP_TILE_P1_MASK 0x3e
#define ACP_TILE_P2_MASK 0x3d
#define ACP_TILE_DSP0_MASK 0x3b
#define ACP_TILE_DSP1_MASK 0x37
#define ACP_TILE_DSP2_MASK 0x2f
/* Playback DMA channels */
#define SYSRAM_TO_ACP_CH_NUM 12
#define ACP_TO_I2S_DMA_CH_NUM 13
/* Capture DMA channels */
#define ACP_TO_SYSRAM_CH_NUM 14
#define I2S_TO_ACP_DMA_CH_NUM 15
#define NUM_DSCRS_PER_CHANNEL 2
#define PLAYBACK_START_DMA_DESCR_CH12 0
#define PLAYBACK_END_DMA_DESCR_CH12 1
#define PLAYBACK_START_DMA_DESCR_CH13 2
#define PLAYBACK_END_DMA_DESCR_CH13 3
#define CAPTURE_START_DMA_DESCR_CH14 4
#define CAPTURE_END_DMA_DESCR_CH14 5
#define CAPTURE_START_DMA_DESCR_CH15 6
#define CAPTURE_END_DMA_DESCR_CH15 7
enum acp_dma_priority_level {
/* 0x0 Specifies the DMA channel is given normal priority */
ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
/* 0x1 Specifies the DMA channel is given high priority */
ACP_DMA_PRIORITY_LEVEL_HIGH = 0x1,
ACP_DMA_PRIORITY_LEVEL_FORCESIZE = 0xFF
};
struct audio_substream_data {
struct page *pg;
unsigned int order;
u16 num_of_pages;
u16 direction;
uint64_t size;
void __iomem *acp_mmio;
};
enum {
ACP_TILE_P1 = 0,
ACP_TILE_P2,
ACP_TILE_DSP0,
ACP_TILE_DSP1,
ACP_TILE_DSP2,
};
enum {
ACP_DMA_ATTRIBUTES_SHAREDMEM_TO_DAGB_ONION = 0x0,
ACP_DMA_ATTRIBUTES_SHARED_MEM_TO_DAGB_GARLIC = 0x1,
ACP_DMA_ATTRIBUTES_DAGB_ONION_TO_SHAREDMEM = 0x8,
ACP_DMA_ATTRIBUTES_DAGB_GARLIC_TO_SHAREDMEM = 0x9,
ACP_DMA_ATTRIBUTES_FORCE_SIZE = 0xF
};
typedef struct acp_dma_dscr_transfer {
/* Specifies the source memory location for the DMA data transfer. */
u32 src;
/* Specifies the destination memory location to where the data will
* be transferred.
*/
u32 dest;
/* Specifies the number of bytes need to be transferred
* from source to destination memory.Transfer direction & IOC enable
*/
u32 xfer_val;
/* Reserved for future use */
u32 reserved;
} acp_dma_dscr_transfer_t;
#endif /*__ACP_HW_H */
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