[ALSA] Add PCXHR driver

Modules: Documentation,PCI drivers,Digigram PCXHR driver

Add Digigram PCXHR driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Documentation/sound/alsa/ALSA-Configuration.txt

@@ -1103,6 +1103,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
     This module supports only one card, autoprobe and PnP.
 
+  Module snd-pcxhr
+  ----------------
+
+    Module for Digigram PCXHR boards
+
+    This module supports multiple cards.
+
   Module snd-powermac (on ppc only)
   ---------------------------------
 

sound/pci/Kconfig

@@ -455,6 +455,17 @@ config SND_NM256
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-nm256.
 
+config SND_PCXHR
+	tristate "Digigram PCXHR"
+	depends on SND
+	select SND_PCM
+	select SND_HWDEP
+	help
+	  Say Y here to include support for Digigram PCXHR boards.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-pcxhr.
+
 config SND_RME32
 	tristate "RME Digi32, 32/8, 32 PRO"
 	depends on SND

sound/pci/Makefile

@@ -61,6 +61,7 @@ obj-$(CONFIG_SND) += \
 	korg1212/ \
 	mixart/ \
 	nm256/ \
+	pcxhr/ \
 	rme9652/ \
 	trident/ \
 	ymfpci/ \

sound/pci/pcxhr/Makefile

+snd-pcxhr-objs := pcxhr.o pcxhr_hwdep.o pcxhr_mixer.o pcxhr_core.o
+obj-$(CONFIG_SND_PCXHR) += snd-pcxhr.o

sound/pci/pcxhr/pcxhr.c

+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * main file with alsa callbacks
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+
+#include <sound/driver.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/info.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include "pcxhr.h"
+#include "pcxhr_mixer.h"
+#include "pcxhr_hwdep.h"
+#include "pcxhr_core.h"
+
+#define DRIVER_NAME "pcxhr"
+
+MODULE_AUTHOR("Markus Bollinger <bollinger@digigram.com>");
+MODULE_DESCRIPTION("Digigram " DRIVER_NAME " " PCXHR_DRIVER_VERSION_STRING);
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Digigram," DRIVER_NAME "}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;		/* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;		/* ID for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
+static int mono[SNDRV_CARDS];					/* capture in mono only */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Digigram " DRIVER_NAME " soundcard");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Digigram " DRIVER_NAME " soundcard");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Digigram " DRIVER_NAME " soundcard");
+module_param_array(mono, bool, NULL, 0444);
+MODULE_PARM_DESC(mono, "Mono capture mode (default is stereo)");
+
+enum {
+	PCI_ID_VX882HR,
+	PCI_ID_PCX882HR,
+	PCI_ID_VX881HR,
+	PCI_ID_PCX881HR,
+	PCI_ID_PCX1222HR,
+	PCI_ID_PCX1221HR,
+	PCI_ID_LAST
+};
+
+static struct pci_device_id pcxhr_ids[] = {
+	{ 0x10b5, 0x9656, 0x1369, 0xb001, 0, 0, PCI_ID_VX882HR, },   /* VX882HR */
+	{ 0x10b5, 0x9656, 0x1369, 0xb101, 0, 0, PCI_ID_PCX882HR, },  /* PCX882HR */
+	{ 0x10b5, 0x9656, 0x1369, 0xb201, 0, 0, PCI_ID_VX881HR, },   /* VX881HR */
+	{ 0x10b5, 0x9656, 0x1369, 0xb301, 0, 0, PCI_ID_PCX881HR, },  /* PCX881HR */
+	{ 0x10b5, 0x9656, 0x1369, 0xb501, 0, 0, PCI_ID_PCX1222HR, }, /* PCX1222HR */
+	{ 0x10b5, 0x9656, 0x1369, 0xb701, 0, 0, PCI_ID_PCX1221HR, }, /* PCX1221HR */
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, pcxhr_ids);
+
+struct board_parameters {
+	char* board_name;
+	short playback_chips;
+	short capture_chips;
+	short firmware_num;
+};
+static struct board_parameters pcxhr_board_params[] = {
+[PCI_ID_VX882HR] =	{ "VX882HR",   4, 4, 41, },
+[PCI_ID_PCX882HR] =	{ "PCX882HR",  4, 4, 41, },
+[PCI_ID_VX881HR] =	{ "VX881HR",   4, 4, 41, },
+[PCI_ID_PCX881HR] =	{ "PCX881HR",  4, 4, 41, },
+[PCI_ID_PCX1222HR] =	{ "PCX1222HR", 6, 1, 42, },
+[PCI_ID_PCX1221HR] =	{ "PCX1221HR", 6, 1, 42, },
+};
+
+
+static int pcxhr_pll_freq_register(unsigned int freq, unsigned int* pllreg,
+				   unsigned int* realfreq)
+{
+	unsigned int reg;
+
+	if (freq < 6900 || freq > 110250)
+		return -EINVAL;
+	reg = (28224000 * 10) / freq;
+	reg = (reg + 5) / 10;
+	if (reg < 0x200)
+		*pllreg = reg + 0x800;
+	else if (reg < 0x400)
+		*pllreg = reg & 0x1ff;
+	else if (reg < 0x800) {
+		*pllreg = ((reg >> 1) & 0x1ff) + 0x200;
+		reg &= ~1;
+	} else {
+		*pllreg = ((reg >> 2) & 0x1ff) + 0x400;
+		reg &= ~3;
+	}
+	if (realfreq)
+		*realfreq = ((28224000 * 10) / reg + 5) / 10;
+	return 0;
+}
+
+
+#define PCXHR_FREQ_REG_MASK		0x1f
+#define PCXHR_FREQ_QUARTZ_48000		0x00
+#define PCXHR_FREQ_QUARTZ_24000		0x01
+#define PCXHR_FREQ_QUARTZ_12000		0x09
+#define PCXHR_FREQ_QUARTZ_32000		0x08
+#define PCXHR_FREQ_QUARTZ_16000		0x04
+#define PCXHR_FREQ_QUARTZ_8000		0x0c
+#define PCXHR_FREQ_QUARTZ_44100		0x02
+#define PCXHR_FREQ_QUARTZ_22050		0x0a
+#define PCXHR_FREQ_QUARTZ_11025		0x06
+#define PCXHR_FREQ_PLL			0x05
+#define PCXHR_FREQ_QUARTZ_192000	0x10
+#define PCXHR_FREQ_QUARTZ_96000		0x18
+#define PCXHR_FREQ_QUARTZ_176400	0x14
+#define PCXHR_FREQ_QUARTZ_88200		0x1c
+#define PCXHR_FREQ_QUARTZ_128000	0x12
+#define PCXHR_FREQ_QUARTZ_64000		0x1a
+
+#define PCXHR_FREQ_WORD_CLOCK		0x0f
+#define PCXHR_FREQ_SYNC_AES		0x0e
+#define PCXHR_FREQ_AES_1		0x07
+#define PCXHR_FREQ_AES_2		0x0b
+#define PCXHR_FREQ_AES_3		0x03
+#define PCXHR_FREQ_AES_4		0x0d
+
+#define PCXHR_MODIFY_CLOCK_S_BIT	0x04
+
+#define PCXHR_IRQ_TIMER_FREQ		92000
+#define PCXHR_IRQ_TIMER_PERIOD		48
+
+static int pcxhr_get_clock_reg(struct pcxhr_mgr *mgr, unsigned int rate,
+			       unsigned int *reg, unsigned int *freq)
+{
+	unsigned int val, realfreq, pllreg;
+	struct pcxhr_rmh rmh;
+	int err;
+
+	realfreq = rate;
+	switch (mgr->use_clock_type) {
+	case PCXHR_CLOCK_TYPE_INTERNAL :	/* clock by quartz or pll */
+		switch (rate) {
+		case 48000 :	val = PCXHR_FREQ_QUARTZ_48000;	break;
+		case 24000 :	val = PCXHR_FREQ_QUARTZ_24000;	break;
+		case 12000 :	val = PCXHR_FREQ_QUARTZ_12000;	break;
+		case 32000 :	val = PCXHR_FREQ_QUARTZ_32000;	break;
+		case 16000 :	val = PCXHR_FREQ_QUARTZ_16000;	break;
+		case 8000 :	val = PCXHR_FREQ_QUARTZ_8000;	break;
+		case 44100 :	val = PCXHR_FREQ_QUARTZ_44100;	break;
+		case 22050 :	val = PCXHR_FREQ_QUARTZ_22050;	break;
+		case 11025 :	val = PCXHR_FREQ_QUARTZ_11025;	break;
+		case 192000 :	val = PCXHR_FREQ_QUARTZ_192000;	break;
+		case 96000 :	val = PCXHR_FREQ_QUARTZ_96000;	break;
+		case 176400 :	val = PCXHR_FREQ_QUARTZ_176400;	break;
+		case 88200 :	val = PCXHR_FREQ_QUARTZ_88200;	break;
+		case 128000 :	val = PCXHR_FREQ_QUARTZ_128000;	break;
+		case 64000 :	val = PCXHR_FREQ_QUARTZ_64000;	break;
+		default :
+			val = PCXHR_FREQ_PLL;
+			/* get the value for the pll register */
+			err = pcxhr_pll_freq_register(rate, &pllreg, &realfreq);
+			if (err)
+				return err;
+			pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+			rmh.cmd[0] |= IO_NUM_REG_GENCLK;
+			rmh.cmd[1]  = pllreg & MASK_DSP_WORD;
+			rmh.cmd[2]  = pllreg >> 24;
+			rmh.cmd_len = 3;
+			err = pcxhr_send_msg(mgr, &rmh);
+			if (err < 0) {
+				snd_printk(KERN_ERR
+					   "error CMD_ACCESS_IO_WRITE for PLL register : %x!\n",
+					   err );
+				return err;
+			}
+		}
+		break;
+	case PCXHR_CLOCK_TYPE_WORD_CLOCK :	val = PCXHR_FREQ_WORD_CLOCK;	break;
+	case PCXHR_CLOCK_TYPE_AES_SYNC :	val = PCXHR_FREQ_SYNC_AES;	break;
+	case PCXHR_CLOCK_TYPE_AES_1 :		val = PCXHR_FREQ_AES_1;		break;
+	case PCXHR_CLOCK_TYPE_AES_2 :		val = PCXHR_FREQ_AES_2;		break;
+	case PCXHR_CLOCK_TYPE_AES_3 :		val = PCXHR_FREQ_AES_3;		break;
+	case PCXHR_CLOCK_TYPE_AES_4 :		val = PCXHR_FREQ_AES_4;		break;
+	default : return -EINVAL;
+	}
+	*reg = val;
+	*freq = realfreq;
+	return 0;
+}
+
+
+int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate)
+{
+	unsigned int val, realfreq, speed;
+	struct pcxhr_rmh rmh;
+	int err, changed;
+
+	if (rate == 0)
+		return 0; /* nothing to do */
+
+	err = pcxhr_get_clock_reg(mgr, rate, &val, &realfreq);
+	if (err)
+		return err;
+
+	/* codec speed modes */
+	if (rate < 55000)
+		speed = 0;	/* single speed */
+	else if (rate < 100000)
+		speed = 1;	/* dual speed */
+	else
+		speed = 2;	/* quad speed */
+	if (mgr->codec_speed != speed) {
+		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);	/* mute outputs */
+		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
+		err = pcxhr_send_msg(mgr, &rmh);
+		if (err)
+			return err;
+
+		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);	/* set speed ratio */
+		rmh.cmd[0] |= IO_NUM_SPEED_RATIO;
+		rmh.cmd[1] = speed;
+		rmh.cmd_len = 2;
+		err = pcxhr_send_msg(mgr, &rmh);
+		if (err)
+			return err;
+	}
+	/* set the new frequency */
+	snd_printdd("clock register : set %x\n", val);
+	err = pcxhr_write_io_num_reg_cont(mgr, PCXHR_FREQ_REG_MASK, val, &changed);
+	if (err)
+		return err;
+	mgr->sample_rate_real = realfreq;
+	mgr->cur_clock_type = mgr->use_clock_type;
+
+	/* unmute after codec speed modes */
+	if (mgr->codec_speed != speed) {
+		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);	/* unmute outputs */
+		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
+		err = pcxhr_send_msg(mgr, &rmh);
+		if (err)
+			return err;
+		mgr->codec_speed = speed;			/* save new codec speed */
+	}
+
+	if (changed) {
+		pcxhr_init_rmh(&rmh, CMD_MODIFY_CLOCK);
+		rmh.cmd[0] |= PCXHR_MODIFY_CLOCK_S_BIT;		/* resync fifos  */
+		if (rate < PCXHR_IRQ_TIMER_FREQ)
+			rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD;
+		else
+			rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD * 2;
+		rmh.cmd[2] = rate;
+		rmh.cmd_len = 3;
+		err = pcxhr_send_msg(mgr, &rmh);
+		if (err)
+			return err;
+	}
+	snd_printdd("pcxhr_set_clock to %dHz (realfreq=%d)\n", rate, realfreq);
+	return 0;
+}
+
+
+int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type,
+			     int *sample_rate)
+{
+	struct pcxhr_rmh rmh;
+	unsigned char reg;
+	int err, rate;
+
+	switch (clock_type) {
+	case PCXHR_CLOCK_TYPE_WORD_CLOCK :	reg = REG_STATUS_WORD_CLOCK;	break;
+	case PCXHR_CLOCK_TYPE_AES_SYNC :	reg = REG_STATUS_AES_SYNC;	break;
+	case PCXHR_CLOCK_TYPE_AES_1 :		reg = REG_STATUS_AES_1;		break;
+	case PCXHR_CLOCK_TYPE_AES_2 :		reg = REG_STATUS_AES_2;		break;
+	case PCXHR_CLOCK_TYPE_AES_3 :		reg = REG_STATUS_AES_3;		break;
+	case PCXHR_CLOCK_TYPE_AES_4 :		reg = REG_STATUS_AES_4;		break;
+	default : return -EINVAL;
+	}
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
+	rmh.cmd_len = 2;
+	rmh.cmd[0] |= IO_NUM_REG_STATUS;
+	if (mgr->last_reg_stat != reg) {
+		rmh.cmd[1]  = reg;
+		err = pcxhr_send_msg(mgr, &rmh);
+		if (err)
+			return err;
+		udelay(100);		/* wait minimum 2 sample_frames at 32kHz ! */
+		mgr->last_reg_stat = reg;
+	}
+	rmh.cmd[1]  = REG_STATUS_CURRENT;
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err)
+		return err;
+	switch (rmh.stat[1] & 0x0f) {
+	case REG_STATUS_SYNC_32000 :	rate = 32000; break;
+	case REG_STATUS_SYNC_44100 :	rate = 44100; break;
+	case REG_STATUS_SYNC_48000 :	rate = 48000; break;
+	case REG_STATUS_SYNC_64000 :	rate = 64000; break;
+	case REG_STATUS_SYNC_88200 :	rate = 88200; break;
+	case REG_STATUS_SYNC_96000 :	rate = 96000; break;
+	case REG_STATUS_SYNC_128000 :	rate = 128000; break;
+	case REG_STATUS_SYNC_176400 :	rate = 176400; break;
+	case REG_STATUS_SYNC_192000 :	rate = 192000; break;
+	default: rate = 0;
+	}
+	snd_printdd("External clock is at %d Hz\n", rate);
+	*sample_rate = rate;
+	return 0;
+}
+
+
+/*
+ *  start or stop playback/capture substream
+ */
+static int pcxhr_set_stream_state(struct pcxhr_stream *stream)
+{
+	int err;
+	struct snd_pcxhr *chip;
+	struct pcxhr_rmh rmh;
+	int stream_mask, start;
+
+	if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN)
+		start = 1;
+	else {
+		if (stream->status != PCXHR_STREAM_STATUS_SCHEDULE_STOP) {
+			snd_printk(KERN_ERR "ERROR pcxhr_set_stream_state CANNOT be stopped\n");
+			return -EINVAL;
+		}
+		start = 0;
+	}
+	if (!stream->substream)
+		return -EINVAL;
+
+	stream->timer_abs_periods = 0;
+	stream->timer_period_frag = 0;            /* reset theoretical stream pos */
+	stream->timer_buf_periods = 0;
+	stream->timer_is_synced = 0;
+
+	stream_mask = stream->pipe->is_capture ? 1 : 1<<stream->substream->number;
+
+	pcxhr_init_rmh(&rmh, start ? CMD_START_STREAM : CMD_STOP_STREAM);
+	pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture,
+				  stream->pipe->first_audio, 0, stream_mask);
+
+	chip = snd_pcm_substream_chip(stream->substream);
+
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err)
+		snd_printk(KERN_ERR "ERROR pcxhr_set_stream_state err=%x;\n", err);
+	stream->status = start ? PCXHR_STREAM_STATUS_STARTED : PCXHR_STREAM_STATUS_STOPPED;
+	return err;
+}
+
+#define HEADER_FMT_BASE_LIN		0xfed00000
+#define HEADER_FMT_BASE_FLOAT		0xfad00000
+#define HEADER_FMT_INTEL		0x00008000
+#define HEADER_FMT_24BITS		0x00004000
+#define HEADER_FMT_16BITS		0x00002000
+#define HEADER_FMT_UPTO11		0x00000200
+#define HEADER_FMT_UPTO32		0x00000100
+#define HEADER_FMT_MONO			0x00000080
+
+static int pcxhr_set_format(struct pcxhr_stream *stream)
+{
+	int err, is_capture, sample_rate, stream_num;
+	struct snd_pcxhr *chip;
+	struct pcxhr_rmh rmh;
+	unsigned int header;
+
+	switch (stream->format) {
+	case SNDRV_PCM_FORMAT_U8:
+		header = HEADER_FMT_BASE_LIN;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		header = HEADER_FMT_BASE_LIN | HEADER_FMT_16BITS | HEADER_FMT_INTEL;
+		break;
+	case SNDRV_PCM_FORMAT_S16_BE:
+		header = HEADER_FMT_BASE_LIN | HEADER_FMT_16BITS;
+		break;
+	case SNDRV_PCM_FORMAT_S24_3LE:
+		header = HEADER_FMT_BASE_LIN | HEADER_FMT_24BITS | HEADER_FMT_INTEL;
+		break;
+	case SNDRV_PCM_FORMAT_S24_3BE:
+		header = HEADER_FMT_BASE_LIN | HEADER_FMT_24BITS;
+		break;
+	case SNDRV_PCM_FORMAT_FLOAT_LE:
+		header = HEADER_FMT_BASE_FLOAT | HEADER_FMT_INTEL;
+		break;
+	default:
+		snd_printk(KERN_ERR "error pcxhr_set_format() : unknown format\n");
+		return -EINVAL;
+	}
+	chip = snd_pcm_substream_chip(stream->substream);
+
+	sample_rate = chip->mgr->sample_rate;
+	if (sample_rate <= 32000 && sample_rate !=0) {
+		if (sample_rate <= 11025)
+			header |= HEADER_FMT_UPTO11;
+		else
+			header |= HEADER_FMT_UPTO32;
+	}
+	if (stream->channels == 1)
+		header |= HEADER_FMT_MONO;
+
+	is_capture = stream->pipe->is_capture;
+	stream_num = is_capture ? 0 : stream->substream->number;
+
+	pcxhr_init_rmh(&rmh, is_capture ? CMD_FORMAT_STREAM_IN : CMD_FORMAT_STREAM_OUT);
+	pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio, stream_num, 0);
+	if (is_capture)
+		rmh.cmd[0] |= 1<<12;
+	rmh.cmd[1] = 0;
+	rmh.cmd[2] = header >> 8;
+	rmh.cmd[3] = (header & 0xff) << 16;
+	rmh.cmd_len = 4;
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err)
+		snd_printk(KERN_ERR "ERROR pcxhr_set_format err=%x;\n", err);
+	return err;
+}
+
+static int pcxhr_update_r_buffer(struct pcxhr_stream *stream)
+{
+	int err, is_capture, stream_num;
+	struct pcxhr_rmh rmh;
+	struct snd_pcm_substream *subs = stream->substream;
+	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
+
+	is_capture = (subs->stream == SNDRV_PCM_STREAM_CAPTURE);
+	stream_num = is_capture ? 0 : subs->number;
+
+	snd_printdd("pcxhr_update_r_buffer(pcm%c%d) : addr(%p) bytes(%x) subs(%d)\n",
+		    is_capture ? 'c' : 'p',
+		    chip->chip_idx, (void*)subs->runtime->dma_addr,
+		    subs->runtime->dma_bytes, subs->number);
+
+	pcxhr_init_rmh(&rmh, CMD_UPDATE_R_BUFFERS);
+	pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio, stream_num, 0);
+
+	snd_assert(subs->runtime->dma_bytes < 0x200000);	/* max buffer size is 2 MByte */
+	rmh.cmd[1] = subs->runtime->dma_bytes * 8;		/* size in bits */
+	rmh.cmd[2] = subs->runtime->dma_addr >> 24;		/* most significant byte */
+	rmh.cmd[2] |= 1<<19;					/* this is a circular buffer */
+	rmh.cmd[3] = subs->runtime->dma_addr & MASK_DSP_WORD;	/* least 3 significant bytes */
+	rmh.cmd_len = 4;
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err)
+		snd_printk(KERN_ERR "ERROR CMD_UPDATE_R_BUFFERS err=%x;\n", err);
+	return err;
+}
+
+
+#if 0
+static int pcxhr_pipe_sample_count(struct pcxhr_stream *stream, snd_pcm_uframes_t *sample_count)
+{
+	struct pcxhr_rmh rmh;
+	int err;
+	pcxhr_t *chip = snd_pcm_substream_chip(stream->substream);
+	pcxhr_init_rmh(&rmh, CMD_PIPE_SAMPLE_COUNT);
+	pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture, 0, 0,
+				  1<<stream->pipe->first_audio);
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err == 0) {
+		*sample_count = ((snd_pcm_uframes_t)rmh.stat[0]) << 24;
+		*sample_count += (snd_pcm_uframes_t)rmh.stat[1];
+	}
+	snd_printdd("PIPE_SAMPLE_COUNT = %lx\n", *sample_count);
+	return err;
+}
+#endif
+
+static inline int pcxhr_stream_scheduled_get_pipe(struct pcxhr_stream *stream,
+						  struct pcxhr_pipe **pipe)
+{
+	if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN) {
+		*pipe = stream->pipe;
+		return 1;
+	}
+	return 0;
+}
+
+static void pcxhr_trigger_tasklet(unsigned long arg)
+{
+	unsigned long flags;
+	int i, j, err;
+	struct pcxhr_pipe *pipe;
+	struct snd_pcxhr *chip;
+	struct pcxhr_mgr *mgr = (struct pcxhr_mgr*)(arg);
+	int capture_mask = 0;
+	int playback_mask = 0;
+
+#ifdef CONFIG_SND_DEBUG_DETECT
+	struct timeval my_tv1, my_tv2;
+	do_gettimeofday(&my_tv1);
+#endif
+	down(&mgr->setup_mutex);
+
+	/* check the pipes concerned and build pipe_array */
+	for (i = 0; i < mgr->num_cards; i++) {
+		chip = mgr->chip[i];
+		for (j = 0; j < chip->nb_streams_capt; j++) {
+			if (pcxhr_stream_scheduled_get_pipe(&chip->capture_stream[j], &pipe))
+				capture_mask |= (1 << pipe->first_audio);
+		}
+		for (j = 0; j < chip->nb_streams_play; j++) {
+			if (pcxhr_stream_scheduled_get_pipe(&chip->playback_stream[j], &pipe)) {
+				playback_mask |= (1 << pipe->first_audio);
+				break;	/* add only once, as all playback streams of
+					 * one chip use the same pipe
+					 */
+			}
+		}
+	}
+	if (capture_mask == 0 && playback_mask == 0) {
+		up(&mgr->setup_mutex);
+		snd_printk(KERN_ERR "pcxhr_trigger_tasklet : no pipes\n");
+		return;
+	}
+
+	snd_printdd("pcxhr_trigger_tasklet : playback_mask=%x capture_mask=%x\n",
+		    playback_mask, capture_mask);
+
+	/* synchronous stop of all the pipes concerned */
+	err = pcxhr_set_pipe_state(mgr,  playback_mask, capture_mask, 0);
+	if (err) {
+		up(&mgr->setup_mutex);
+		snd_printk(KERN_ERR "pcxhr_trigger_tasklet : error stop pipes (P%x C%x)\n",
+			   playback_mask, capture_mask);
+		return;
+	}
+
+	/* unfortunately the dsp lost format and buffer info with the stop pipe */
+	for (i = 0; i < mgr->num_cards; i++) {
+		struct pcxhr_stream *stream;
+		chip = mgr->chip[i];
+		for (j = 0; j < chip->nb_streams_capt; j++) {
+			stream = &chip->capture_stream[j];
+			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
+				err = pcxhr_set_format(stream);
+				err = pcxhr_update_r_buffer(stream);
+			}
+		}
+		for (j = 0; j < chip->nb_streams_play; j++) {
+			stream = &chip->playback_stream[j];
+			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
+				err = pcxhr_set_format(stream);
+				err = pcxhr_update_r_buffer(stream);
+			}
+		}
+	}
+	/* start all the streams */
+	for (i = 0; i < mgr->num_cards; i++) {
+		struct pcxhr_stream *stream;
+		chip = mgr->chip[i];
+		for (j = 0; j < chip->nb_streams_capt; j++) {
+			stream = &chip->capture_stream[j];
+			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
+				err = pcxhr_set_stream_state(stream);
+		}
+		for (j = 0; j < chip->nb_streams_play; j++) {
+			stream = &chip->playback_stream[j];
+			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
+				err = pcxhr_set_stream_state(stream);
+		}
+	}
+
+	/* synchronous start of all the pipes concerned */
+	err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
+	if (err) {
+		up(&mgr->setup_mutex);
+		snd_printk(KERN_ERR "pcxhr_trigger_tasklet : error start pipes (P%x C%x)\n",
+			   playback_mask, capture_mask);
+		return;
+	}
+
+	/* put the streams into the running state now (increment pointer by interrupt) */
+	spin_lock_irqsave(&mgr->lock, flags);
+	for ( i =0; i < mgr->num_cards; i++) {
+		struct pcxhr_stream *stream;
+		chip = mgr->chip[i];
+		for(j = 0; j < chip->nb_streams_capt; j++) {
+			stream = &chip->capture_stream[j];
+			if(stream->status == PCXHR_STREAM_STATUS_STARTED)
+				stream->status = PCXHR_STREAM_STATUS_RUNNING;
+		}
+		for (j = 0; j < chip->nb_streams_play; j++) {
+			stream = &chip->playback_stream[j];
+			if (stream->status == PCXHR_STREAM_STATUS_STARTED) {
+				/* playback will already have advanced ! */
+				stream->timer_period_frag += PCXHR_GRANULARITY;
+				stream->status = PCXHR_STREAM_STATUS_RUNNING;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&mgr->lock, flags);
+
+	up(&mgr->setup_mutex);
+
+#ifdef CONFIG_SND_DEBUG_DETECT
+	do_gettimeofday(&my_tv2);
+	snd_printdd("***TRIGGER TASKLET*** TIME = %ld (err = %x)\n",
+		    my_tv2.tv_usec - my_tv1.tv_usec, err);
+#endif
+}
+
+
+/*
+ *  trigger callback
+ */
+static int pcxhr_trigger(struct snd_pcm_substream *subs, int cmd)
+{
+	struct pcxhr_stream *stream;
+	struct list_head *pos;
+	struct snd_pcm_substream *s;
+	int i;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		snd_printdd("SNDRV_PCM_TRIGGER_START\n");
+		i = 0;
+		snd_pcm_group_for_each(pos, subs) {
+			s = snd_pcm_group_substream_entry(pos);
+			stream = s->runtime->private_data;
+			stream->status = PCXHR_STREAM_STATUS_SCHEDULE_RUN;
+			snd_pcm_trigger_done(s, subs);
+			i++;
+		}
+		if (i==1) {
+			snd_printdd("Only one Substream %c %d\n",
+				    stream->pipe->is_capture ? 'C' : 'P',
+				    stream->pipe->first_audio);
+			if (pcxhr_set_format(stream))
+				return -EINVAL;
+			if (pcxhr_update_r_buffer(stream))
+				return -EINVAL;
+
+			if (pcxhr_set_stream_state(stream))
+				return -EINVAL;
+			stream->status = PCXHR_STREAM_STATUS_RUNNING;
+		} else {
+			struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
+			tasklet_hi_schedule(&chip->mgr->trigger_taskq);
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
+		snd_pcm_group_for_each(pos, subs) {
+			s = snd_pcm_group_substream_entry(pos);
+			stream = s->runtime->private_data;
+			stream->status = PCXHR_STREAM_STATUS_SCHEDULE_STOP;
+			if (pcxhr_set_stream_state(stream))
+				return -EINVAL;
+			snd_pcm_trigger_done(s, subs);
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		/* TODO */
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+
+static int pcxhr_hardware_timer(struct pcxhr_mgr *mgr, int start)
+{
+	struct pcxhr_rmh rmh;
+	int err;
+
+	pcxhr_init_rmh(&rmh, CMD_SET_TIMER_INTERRUPT);
+	if (start) {
+		mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;	/* last dsp time invalid */
+		rmh.cmd[0] |= PCXHR_GRANULARITY;
+	}
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err < 0)
+		snd_printk(KERN_ERR "error pcxhr_hardware_timer err(%x)\n", err);
+	return err;
+}
+
+/*
+ *  prepare callback for all pcms
+ */
+static int pcxhr_prepare(struct snd_pcm_substream *subs)
+{
+	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
+	struct pcxhr_mgr *mgr = chip->mgr;
+	/*
+	struct pcxhr_stream *stream = (pcxhr_stream_t*)subs->runtime->private_data;
+	*/
+	int err = 0;
+
+	snd_printdd("pcxhr_prepare : period_size(%lx) periods(%x) buffer_size(%lx)\n",
+		    subs->runtime->period_size, subs->runtime->periods,
+		    subs->runtime->buffer_size);
+
+	/*
+	if(subs->runtime->period_size <= PCXHR_GRANULARITY) {
+		snd_printk(KERN_ERR "pcxhr_prepare : error period_size too small (%x)\n",
+			   (unsigned int)subs->runtime->period_size);
+		return -EINVAL;
+	}
+	*/
+
+	down(&mgr->setup_mutex);
+
+	do {
+		/* if the stream was stopped before, format and buffer were reset */
+		/*
+		if(stream->status == PCXHR_STREAM_STATUS_STOPPED) {
+			err = pcxhr_set_format(stream);
+			if(err) break;
+			err = pcxhr_update_r_buffer(stream);
+			if(err) break;
+		}
+		*/
+
+		/* only the first stream can choose the sample rate */
+		/* the further opened streams will be limited to its frequency (see open) */
+		/* set the clock only once (first stream) */
+		if (mgr->sample_rate == 0) {
+			err = pcxhr_set_clock(mgr, subs->runtime->rate);
+			if (err)
+				break;
+			mgr->sample_rate = subs->runtime->rate;
+
+			err = pcxhr_hardware_timer(mgr, 1);	/* start the DSP-timer */
+		}
+	} while(0);	/* do only once (so we can use break instead of goto) */
+
+	up(&mgr->setup_mutex);
+
+	return err;
+}
+
+
+/*
+ *  HW_PARAMS callback for all pcms
+ */
+static int pcxhr_hw_params(struct snd_pcm_substream *subs,
+			   struct snd_pcm_hw_params *hw)
+{
+	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
+	struct pcxhr_mgr *mgr = chip->mgr;
+	struct pcxhr_stream *stream = subs->runtime->private_data;
+	snd_pcm_format_t format;
+	int err;
+	int channels;
+
+	/* set up channels */
+	channels = params_channels(hw);
+
+	/*  set up format for the stream */
+	format = params_format(hw);
+
+	down(&mgr->setup_mutex);
+
+	stream->channels = channels;
+	stream->format = format;
+
+	/* set the format to the board */
+	/*
+	err = pcxhr_set_format(stream);
+	if(err) {
+		up(&mgr->setup_mutex);
+		return err;
+	}
+	*/
+	/* allocate buffer */
+	err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
+
+	/*
+	if (err > 0) {
+		err = pcxhr_update_r_buffer(stream);
+	}
+	*/
+	up(&mgr->setup_mutex);
+
+	return err;
+}
+
+static int pcxhr_hw_free(struct snd_pcm_substream *subs)
+{
+	snd_pcm_lib_free_pages(subs);
+	return 0;
+}
+
+
+/*
+ *  CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
+ */
+static struct snd_pcm_hardware pcxhr_caps =
+{
+	.info             = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+			      SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
+			      0 /*SNDRV_PCM_INFO_PAUSE*/),
+	.formats	  = ( SNDRV_PCM_FMTBIT_U8 |
+			      SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
+			      SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
+			      SNDRV_PCM_FMTBIT_FLOAT_LE ),
+	.rates            = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000,
+	.rate_min         = 8000,
+	.rate_max         = 192000,
+	.channels_min     = 1,
+	.channels_max     = 2,
+	.buffer_bytes_max = (32*1024),
+	/* 1 byte == 1 frame U8 mono (PCXHR_GRANULARITY is frames!) */
+	.period_bytes_min = (2*PCXHR_GRANULARITY),
+	.period_bytes_max = (16*1024),
+	.periods_min      = 2,
+	.periods_max      = (32*1024/PCXHR_GRANULARITY),
+};
+
+
+static int pcxhr_open(struct snd_pcm_substream *subs)
+{
+	struct snd_pcxhr       *chip = snd_pcm_substream_chip(subs);
+	struct pcxhr_mgr       *mgr = chip->mgr;
+	struct snd_pcm_runtime *runtime = subs->runtime;
+	struct pcxhr_stream    *stream;
+	int                 is_capture;
+
+	down(&mgr->setup_mutex);
+
+	/* copy the struct snd_pcm_hardware struct */
+	runtime->hw = pcxhr_caps;
+
+	if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) {
+		snd_printdd("pcxhr_open playback chip%d subs%d\n",
+			    chip->chip_idx, subs->number);
+		is_capture = 0;
+		stream = &chip->playback_stream[subs->number];
+	} else {
+		snd_printdd("pcxhr_open capture chip%d subs%d\n",
+			    chip->chip_idx, subs->number);
+		is_capture = 1;
+		if (mgr->mono_capture)
+			runtime->hw.channels_max = 1;
+		else
+			runtime->hw.channels_min = 2;
+		stream = &chip->capture_stream[subs->number];
+	}
+	if (stream->status != PCXHR_STREAM_STATUS_FREE){
+		/* streams in use */
+		snd_printk(KERN_ERR "pcxhr_open chip%d subs%d in use\n",
+			   chip->chip_idx, subs->number);
+		up(&mgr->setup_mutex);
+		return -EBUSY;
+	}
+
+	/* if a sample rate is already used or fixed by external clock,
+	 * the stream cannot change
+	 */
+	if (mgr->sample_rate)
+		runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
+	else {
+		if (mgr->use_clock_type != PCXHR_CLOCK_TYPE_INTERNAL) {
+			int external_rate;
+			if (pcxhr_get_external_clock(mgr, mgr->use_clock_type,
+						     &external_rate) ||
+			    external_rate == 0) {
+				/* cannot detect the external clock rate */
+				up(&mgr->setup_mutex);
+				return -EBUSY;
+			}
+			runtime->hw.rate_min = runtime->hw.rate_max = external_rate;
+		}
+	}
+
+	stream->status      = PCXHR_STREAM_STATUS_OPEN;
+	stream->substream   = subs;
+	stream->channels    = 0; /* not configured yet */
+
+	runtime->private_data = stream;
+
+	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);
+	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);
+
+	mgr->ref_count_rate++;
+
+	up(&mgr->setup_mutex);
+	return 0;
+}
+
+
+static int pcxhr_close(struct snd_pcm_substream *subs)
+{
+	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
+	struct pcxhr_mgr *mgr = chip->mgr;
+	struct pcxhr_stream *stream = subs->runtime->private_data;
+
+	down(&mgr->setup_mutex);
+
+	snd_printdd("pcxhr_close chip%d subs%d\n", chip->chip_idx, subs->number);
+
+	/* sample rate released */
+	if (--mgr->ref_count_rate == 0) {
+		mgr->sample_rate = 0;		/* the sample rate is no more locked */
+		pcxhr_hardware_timer(mgr, 0);	/* stop the DSP-timer */
+	}
+
+	stream->status    = PCXHR_STREAM_STATUS_FREE;
+	stream->substream = NULL;
+
+	up(&mgr->setup_mutex);
+
+	return 0;
+}
+
+
+static snd_pcm_uframes_t pcxhr_stream_pointer(struct snd_pcm_substream *subs)
+{
+	unsigned long flags;
+	u_int32_t timer_period_frag;
+	int timer_buf_periods;
+	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
+	struct snd_pcm_runtime *runtime = subs->runtime;
+	struct pcxhr_stream *stream  = runtime->private_data;
+
+	spin_lock_irqsave(&chip->mgr->lock, flags);
+
+	/* get the period fragment and the nb of periods in the buffer */
+	timer_period_frag = stream->timer_period_frag;
+	timer_buf_periods = stream->timer_buf_periods;
+
+	spin_unlock_irqrestore(&chip->mgr->lock, flags);
+
+	return (snd_pcm_uframes_t)((timer_buf_periods * runtime->period_size) +
+				   timer_period_frag);
+}
+
+
+static struct snd_pcm_ops pcxhr_ops = {
+	.open      = pcxhr_open,
+	.close     = pcxhr_close,
+	.ioctl     = snd_pcm_lib_ioctl,
+	.prepare   = pcxhr_prepare,
+	.hw_params = pcxhr_hw_params,
+	.hw_free   = pcxhr_hw_free,
+	.trigger   = pcxhr_trigger,
+	.pointer   = pcxhr_stream_pointer,
+};
+
+/*
+ */
+int pcxhr_create_pcm(struct snd_pcxhr *chip)
+{
+	int err;
+	struct snd_pcm *pcm;
+	char name[32];
+
+	sprintf(name, "pcxhr %d", chip->chip_idx);
+	if ((err = snd_pcm_new(chip->card, name, 0,
+			       chip->nb_streams_play,
+			       chip->nb_streams_capt, &pcm)) < 0) {
+		snd_printk(KERN_ERR "cannot create pcm %s\n", name);
+		return err;
+	}
+	pcm->private_data = chip;
+
+	if (chip->nb_streams_play)
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcxhr_ops);
+	if (chip->nb_streams_capt)
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcxhr_ops);
+
+	pcm->info_flags = 0;
+	strcpy(pcm->name, name);
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      snd_dma_pci_data(chip->mgr->pci),
+					      32*1024, 32*1024);
+	chip->pcm = pcm;
+	return 0;
+}
+
+static int pcxhr_chip_free(struct snd_pcxhr *chip)
+{
+	kfree(chip);
+	return 0;
+}
+
+static int pcxhr_chip_dev_free(struct snd_device *device)
+{
+	struct snd_pcxhr *chip = device->device_data;
+	return pcxhr_chip_free(chip);
+}
+
+
+/*
+ */
+static int __devinit pcxhr_create(struct pcxhr_mgr *mgr, struct snd_card *card, int idx)
+{
+	int err;
+	struct snd_pcxhr *chip;
+	static struct snd_device_ops ops = {
+		.dev_free = pcxhr_chip_dev_free,
+	};
+
+	mgr->chip[idx] = chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (! chip) {
+		snd_printk(KERN_ERR "cannot allocate chip\n");
+		return -ENOMEM;
+	}
+
+	chip->card = card;
+	chip->chip_idx = idx;
+	chip->mgr = mgr;
+
+	if (idx < mgr->playback_chips)
+		/* stereo or mono streams */
+		chip->nb_streams_play = PCXHR_PLAYBACK_STREAMS;
+
+	if (idx < mgr->capture_chips) {
+		if (mgr->mono_capture)
+			chip->nb_streams_capt = 2;	/* 2 mono streams (left+right) */
+		else
+			chip->nb_streams_capt = 1;	/* or 1 stereo stream */
+	}
+
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+		pcxhr_chip_free(chip);
+		return err;
+	}
+
+	snd_card_set_dev(card, &mgr->pci->dev);
+
+	return 0;
+}
+
+/* proc interface */
+static void pcxhr_proc_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_pcxhr *chip = entry->private_data;
+	struct pcxhr_mgr *mgr = chip->mgr;
+
+	snd_iprintf(buffer, "\n%s\n", mgr->longname);
+
+	/* stats available when embedded DSP is running */
+	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
+		struct pcxhr_rmh rmh;
+		short ver_maj = (mgr->dsp_version >> 16) & 0xff;
+		short ver_min = (mgr->dsp_version >> 8) & 0xff;
+		short ver_build = mgr->dsp_version & 0xff;
+		snd_iprintf(buffer, "module version %s\n", PCXHR_DRIVER_VERSION_STRING);
+		snd_iprintf(buffer, "dsp version %d.%d.%d\n", ver_maj, ver_min, ver_build);
+		if (mgr->board_has_analog)
+			snd_iprintf(buffer, "analog io available\n");
+		else
+			snd_iprintf(buffer, "digital only board\n");
+
+		/* calc cpu load of the dsp */
+		pcxhr_init_rmh(&rmh, CMD_GET_DSP_RESOURCES);
+		if( ! pcxhr_send_msg(mgr, &rmh) ) {
+			int cur = rmh.stat[0];
+			int ref = rmh.stat[1];
+			if (ref > 0) {
+				if (mgr->sample_rate_real != 0 &&
+				    mgr->sample_rate_real != 48000) {
+					ref = (ref * 48000) / mgr->sample_rate_real;
+					if (mgr->sample_rate_real >= PCXHR_IRQ_TIMER_FREQ)
+						ref *= 2;
+				}
+				cur = 100 - (100 * cur) / ref;
+				snd_iprintf(buffer, "cpu load    %d%%\n", cur);
+				snd_iprintf(buffer, "buffer pool %d/%d kWords\n",
+					    rmh.stat[2], rmh.stat[3]);
+			}
+		}
+		snd_iprintf(buffer, "dma granularity : %d\n", PCXHR_GRANULARITY);
+		snd_iprintf(buffer, "dsp time errors : %d\n", mgr->dsp_time_err);
+		snd_iprintf(buffer, "dsp async pipe xrun errors : %d\n",
+			    mgr->async_err_pipe_xrun);
+		snd_iprintf(buffer, "dsp async stream xrun errors : %d\n",
+			    mgr->async_err_stream_xrun);
+		snd_iprintf(buffer, "dsp async last other error : %x\n",
+			    mgr->async_err_other_last);
+		/* debug zone dsp */
+		rmh.cmd[0] = 0x4200 + PCXHR_SIZE_MAX_STATUS;
+		rmh.cmd_len = 1;
+		rmh.stat_len = PCXHR_SIZE_MAX_STATUS;
+		rmh.dsp_stat = 0;
+		rmh.cmd_idx = CMD_LAST_INDEX;
+		if( ! pcxhr_send_msg(mgr, &rmh) ) {
+			int i;
+			for (i = 0; i < rmh.stat_len; i++)
+				snd_iprintf(buffer, "debug[%02d] = %06x\n", i,  rmh.stat[i]);
+		}
+	} else
+		snd_iprintf(buffer, "no firmware loaded\n");
+	snd_iprintf(buffer, "\n");
+}
+static void pcxhr_proc_sync(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_pcxhr *chip = entry->private_data;
+	struct pcxhr_mgr *mgr = chip->mgr;
+	static char *texts[7] = {
+		"Internal", "Word", "AES Sync", "AES 1", "AES 2", "AES 3", "AES 4"
+	};
+
+	snd_iprintf(buffer, "\n%s\n", mgr->longname);
+	snd_iprintf(buffer, "Current Sample Clock\t: %s\n", texts[mgr->cur_clock_type]);
+	snd_iprintf(buffer, "Current Sample Rate\t= %d\n", mgr->sample_rate_real);
+
+	/* commands available when embedded DSP is running */
+	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
+		int i, err, sample_rate;
+		for (i = PCXHR_CLOCK_TYPE_WORD_CLOCK; i< (3 + mgr->capture_chips); i++) {
+			err = pcxhr_get_external_clock(mgr, i, &sample_rate);
+			if (err)
+				break;
+			snd_iprintf(buffer, "%s Clock\t\t= %d\n", texts[i], sample_rate);
+		}
+	} else
+		snd_iprintf(buffer, "no firmware loaded\n");
+	snd_iprintf(buffer, "\n");
+}
+
+static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip)
+{
+	struct snd_info_entry *entry;
+
+	if (! snd_card_proc_new(chip->card, "info", &entry))
+		snd_info_set_text_ops(entry, chip, 1024, pcxhr_proc_info);
+	if (! snd_card_proc_new(chip->card, "sync", &entry))
+		snd_info_set_text_ops(entry, chip, 1024, pcxhr_proc_sync);
+}
+/* end of proc interface */
+
+/*
+ * release all the cards assigned to a manager instance
+ */
+static int pcxhr_free(struct pcxhr_mgr *mgr)
+{
+	unsigned int i;
+
+	for (i = 0; i < mgr->num_cards; i++) {
+		if (mgr->chip[i])
+			snd_card_free(mgr->chip[i]->card);
+	}
+
+	/* reset board if some firmware was loaded */
+	if(mgr->dsp_loaded) {
+		pcxhr_reset_board(mgr);
+		snd_printdd("reset pcxhr !\n");
+	}
+
+	/* release irq  */
+	if (mgr->irq >= 0)
+		free_irq(mgr->irq, mgr);
+
+	pci_release_regions(mgr->pci);
+
+	/* free hostport purgebuffer */
+	if (mgr->hostport.area) {
+		snd_dma_free_pages(&mgr->hostport);
+		mgr->hostport.area = NULL;
+	}
+
+	kfree(mgr->prmh);
+
+	pci_disable_device(mgr->pci);
+	kfree(mgr);
+	return 0;
+}
+
+/*
+ *    probe function - creates the card manager
+ */
+static int __devinit pcxhr_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct pcxhr_mgr *mgr;
+	unsigned int i;
+	int err;
+	size_t size;
+	char *card_name;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (! enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	/* enable PCI device */
+	if ((err = pci_enable_device(pci)) < 0)
+		return err;
+	pci_set_master(pci);
+
+	/* check if we can restrict PCI DMA transfers to 32 bits */
+	if (pci_set_dma_mask(pci, 0xffffffff) < 0) {
+		snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n");
+		pci_disable_device(pci);
+		return -ENXIO;
+	}
+
+	/* alloc card manager */
+	mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
+	if (! mgr) {
+		pci_disable_device(pci);
+		return -ENOMEM;
+	}
+
+	snd_assert(pci_id->driver_data < PCI_ID_LAST, return -ENODEV);
+	card_name = pcxhr_board_params[pci_id->driver_data].board_name;
+	mgr->playback_chips = pcxhr_board_params[pci_id->driver_data].playback_chips;
+	mgr->capture_chips  = pcxhr_board_params[pci_id->driver_data].capture_chips;
+	mgr->firmware_num  = pcxhr_board_params[pci_id->driver_data].firmware_num;
+	mgr->mono_capture = mono[dev];
+
+	/* resource assignment */
+	if ((err = pci_request_regions(pci, card_name)) < 0) {
+		kfree(mgr);
+		pci_disable_device(pci);
+		return err;
+	}
+	for (i = 0; i < 3; i++)
+		mgr->port[i] = pci_resource_start(pci, i);
+
+	mgr->pci = pci;
+	mgr->irq = -1;
+
+	if (request_irq(pci->irq, pcxhr_interrupt, SA_INTERRUPT|SA_SHIRQ,
+			card_name, mgr)) {
+		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+		pcxhr_free(mgr);
+		return -EBUSY;
+	}
+	mgr->irq = pci->irq;
+
+	sprintf(mgr->shortname, "Digigram %s", card_name);
+	sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, 0x%lx irq %i", mgr->shortname,
+		mgr->port[0], mgr->port[1], mgr->port[2], mgr->irq);
+
+	/* ISR spinlock  */
+	spin_lock_init(&mgr->lock);
+	spin_lock_init(&mgr->msg_lock);
+
+	/* init setup mutex*/
+	init_MUTEX(&mgr->setup_mutex);
+
+	/* init taslket */
+	tasklet_init(&mgr->msg_taskq, pcxhr_msg_tasklet, (unsigned long) mgr);
+	tasklet_init(&mgr->trigger_taskq, pcxhr_trigger_tasklet, (unsigned long) mgr);
+	mgr->prmh = kmalloc(sizeof(*mgr->prmh) + 
+			    sizeof(u32) * (PCXHR_SIZE_MAX_LONG_STATUS - PCXHR_SIZE_MAX_STATUS),
+			    GFP_KERNEL);
+	if (! mgr->prmh) {
+		pcxhr_free(mgr);
+		return -ENOMEM;
+	}
+
+	for (i=0; i < PCXHR_MAX_CARDS; i++) {
+		struct snd_card *card;
+		char tmpid[16];
+		int idx;
+
+		if (i >= max(mgr->playback_chips, mgr->capture_chips))
+			break;
+		mgr->num_cards++;
+
+		if (index[dev] < 0)
+			idx = index[dev];
+		else
+			idx = index[dev] + i;
+
+		snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : card_name, i);
+		card = snd_card_new(idx, tmpid, THIS_MODULE, 0);
+
+		if (! card) {
+			snd_printk(KERN_ERR "cannot allocate the card %d\n", i);
+			pcxhr_free(mgr);
+			return -ENOMEM;
+		}
+
+		strcpy(card->driver, DRIVER_NAME);
+		sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
+		sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
+
+		if ((err = pcxhr_create(mgr, card, i)) < 0) {
+			pcxhr_free(mgr);
+			return err;
+		}
+
+		if (i == 0)
+			/* init proc interface only for chip0 */
+			pcxhr_proc_init(mgr->chip[i]);
+
+		if ((err = snd_card_register(card)) < 0) {
+			pcxhr_free(mgr);
+			return err;
+		}
+	}
+
+	/* create hostport purgebuffer */
+	size = PAGE_ALIGN(sizeof(struct pcxhr_hostport));
+	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
+				size, &mgr->hostport) < 0) {
+		pcxhr_free(mgr);
+		return -ENOMEM;
+	}
+	/* init purgebuffer */
+	memset(mgr->hostport.area, 0, size);
+
+	/* create a DSP loader */
+	err = pcxhr_setup_firmware(mgr);
+	if (err < 0) {
+		pcxhr_free(mgr);
+		return err;
+	}
+
+	pci_set_drvdata(pci, mgr);
+	dev++;
+	return 0;
+}
+
+static void __devexit pcxhr_remove(struct pci_dev *pci)
+{
+	pcxhr_free(pci_get_drvdata(pci));
+	pci_set_drvdata(pci, NULL);
+}
+
+static struct pci_driver driver = {
+	.name = "Digigram pcxhr",
+	.id_table = pcxhr_ids,
+	.probe = pcxhr_probe,
+	.remove = __devexit_p(pcxhr_remove),
+};
+
+static int __init pcxhr_module_init(void)
+{
+	return pci_register_driver(&driver);
+}
+
+static void __exit pcxhr_module_exit(void)
+{
+	pci_unregister_driver(&driver);
+}
+
+module_init(pcxhr_module_init)
+module_exit(pcxhr_module_exit)

sound/pci/pcxhr/pcxhr.h

+/*
+ * Driver for Digigram pcxhr soundcards
+ *
+ * main header file
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef __SOUND_PCXHR_H
+#define __SOUND_PCXHR_H
+
+#include <linux/interrupt.h>
+#include <sound/pcm.h>
+
+#define PCXHR_DRIVER_VERSION		0x000804	/* 0.8.4 */
+#define PCXHR_DRIVER_VERSION_STRING	"0.8.4"		/* 0.8.4 */
+
+
+#define PCXHR_MAX_CARDS			6
+#define PCXHR_PLAYBACK_STREAMS		4
+
+#define PCXHR_GRANULARITY		96	/* transfer granularity (should be min 96 and multiple of 48) */
+#define PCXHR_GRANULARITY_MIN		96	/* transfer granularity of pipes and the dsp time (MBOX4) */
+
+struct snd_pcxhr;
+struct pcxhr_mgr;
+
+struct pcxhr_stream;
+struct pcxhr_pipe;
+
+enum pcxhr_clock_type {
+	PCXHR_CLOCK_TYPE_INTERNAL = 0,
+	PCXHR_CLOCK_TYPE_WORD_CLOCK,
+	PCXHR_CLOCK_TYPE_AES_SYNC,
+	PCXHR_CLOCK_TYPE_AES_1,
+	PCXHR_CLOCK_TYPE_AES_2,
+	PCXHR_CLOCK_TYPE_AES_3,
+	PCXHR_CLOCK_TYPE_AES_4,
+};
+
+struct pcxhr_mgr {
+	unsigned int num_cards;
+	struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
+
+	struct pci_dev *pci;
+
+	int irq;
+
+	/* card access with 1 mem bar and 2 io bar's */
+	unsigned long port[3];
+
+	/* share the name */
+	char shortname[32];		/* short name of this soundcard */
+	char longname[96];		/* name of this soundcard */
+
+	/* message tasklet */
+	struct tasklet_struct msg_taskq;
+	struct pcxhr_rmh *prmh;
+	/* trigger tasklet */
+	struct tasklet_struct trigger_taskq;
+
+	spinlock_t lock;		/* interrupt spinlock */
+	spinlock_t msg_lock;		/* message spinlock */
+
+	struct semaphore setup_mutex;	/* mutex used in hw_params, open and close */
+	struct semaphore mixer_mutex;	/* mutex for mixer */
+
+	/* hardware interface */
+	unsigned int dsp_loaded;	/* bit flags of loaded dsp indices */
+	unsigned int dsp_version;	/* read from embedded once firmware is loaded */
+	int board_has_analog;		/* if 0 the board is digital only */
+	int mono_capture;		/* if 1 the board does mono capture */
+	int playback_chips;		/* 4 or 6 */
+	int capture_chips;		/* 4 or 1 */
+	int firmware_num;		/* 41 or 42 */
+
+	struct snd_dma_buffer hostport;
+
+	enum pcxhr_clock_type use_clock_type;	/* clock type selected by mixer */
+	enum pcxhr_clock_type cur_clock_type;	/* current clock type synced */
+	int sample_rate;
+	int ref_count_rate;
+	int timer_toggle;		/* timer interrupt toggles between the two values 0x200 and 0x300 */
+	int dsp_time_last;		/* the last dsp time (read by interrupt) */
+	int dsp_time_err;		/* dsp time errors */
+	unsigned int src_it_dsp;	/* dsp interrupt source */
+	unsigned int io_num_reg_cont;	/* backup of IO_NUM_REG_CONT */
+	unsigned int codec_speed;	/* speed mode of the codecs */
+	unsigned int sample_rate_real;	/* current real sample rate */
+	int last_reg_stat;
+	int async_err_stream_xrun;
+	int async_err_pipe_xrun;
+	int async_err_other_last;
+};
+
+
+enum pcxhr_stream_status {
+	PCXHR_STREAM_STATUS_FREE,
+	PCXHR_STREAM_STATUS_OPEN,
+	PCXHR_STREAM_STATUS_SCHEDULE_RUN,
+	PCXHR_STREAM_STATUS_STARTED,
+	PCXHR_STREAM_STATUS_RUNNING,
+	PCXHR_STREAM_STATUS_SCHEDULE_STOP,
+	PCXHR_STREAM_STATUS_STOPPED,
+	PCXHR_STREAM_STATUS_PAUSED
+};
+
+struct pcxhr_stream {
+	struct snd_pcm_substream *substream;
+	snd_pcm_format_t format;
+	struct pcxhr_pipe *pipe;
+
+	enum pcxhr_stream_status status;	/* free, open, running, draining, pause */
+
+	u_int64_t timer_abs_periods;	/* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
+	u_int32_t timer_period_frag;	/* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
+	u_int32_t timer_buf_periods;	/* nb of periods in the buffer that have already elapsed */
+	int timer_is_synced;		/* if(0) : timer needs to be resynced with real hardware pointer */
+
+	int channels;
+};
+
+
+enum pcxhr_pipe_status {
+	PCXHR_PIPE_UNDEFINED,
+	PCXHR_PIPE_DEFINED
+};
+
+struct pcxhr_pipe {
+	enum pcxhr_pipe_status status;
+	int is_capture;		/* this is a capture pipe */
+	int first_audio;	/* first audio num */
+};
+
+
+struct snd_pcxhr {
+	struct snd_card *card;
+	struct pcxhr_mgr *mgr;
+	int chip_idx;		/* zero based */
+
+	struct snd_pcm *pcm;		/* PCM */
+
+	struct pcxhr_pipe playback_pipe;		/* 1 stereo pipe only */
+	struct pcxhr_pipe capture_pipe[2];		/* 1 stereo pipe or 2 mono pipes */
+
+	struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
+	struct pcxhr_stream capture_stream[2];	/* 1 stereo stream or 2 mono streams */
+	int nb_streams_play;
+	int nb_streams_capt;
+
+	int analog_playback_active[2];		/* Mixer : Master Playback active (!mute) */
+	int analog_playback_volume[2];		/* Mixer : Master Playback Volume */
+	int analog_capture_volume[2];		/* Mixer : Master Capture Volume */
+	int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2];	/* Mixer : Digital Playback Active [streams][stereo]*/
+	int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2];	/* Mixer : Digital Playback Volume [streams][stereo]*/
+	int digital_capture_volume[2];		/* Mixer : Digital Capture Volume [stereo] */
+	int monitoring_active[2];		/* Mixer : Monitoring Active */
+	int monitoring_volume[2];		/* Mixer : Monitoring Volume */
+	int audio_capture_source;		/* Mixer : Audio Capture Source */
+	unsigned char aes_bits[5];		/* Mixer : IEC958_AES bits */
+};
+
+struct pcxhr_hostport
+{
+	char purgebuffer[6];
+	char reserved[2];
+};
+
+/* exported */
+int pcxhr_create_pcm(struct snd_pcxhr *chip);
+int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
+int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type, int *sample_rate);
+
+#endif /* __SOUND_PCXHR_H */

sound/pci/pcxhr/pcxhr_core.c

+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * low level interface with interrupt and message handling implementation
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <sound/core.h>
+#include "pcxhr.h"
+#include "pcxhr_mixer.h"
+#include "pcxhr_hwdep.h"
+#include "pcxhr_core.h"
+
+
+/* registers used on the PLX (port 1) */
+#define PCXHR_PLX_OFFSET_MIN	0x40
+#define PCXHR_PLX_MBOX0		0x40
+#define PCXHR_PLX_MBOX1		0x44
+#define PCXHR_PLX_MBOX2		0x48
+#define PCXHR_PLX_MBOX3		0x4C
+#define PCXHR_PLX_MBOX4		0x50
+#define PCXHR_PLX_MBOX5		0x54
+#define PCXHR_PLX_MBOX6		0x58
+#define PCXHR_PLX_MBOX7		0x5C
+#define PCXHR_PLX_L2PCIDB	0x64
+#define PCXHR_PLX_IRQCS		0x68
+#define PCXHR_PLX_CHIPSC	0x6C
+
+/* registers used on the DSP (port 2) */
+#define PCXHR_DSP_ICR		0x00
+#define PCXHR_DSP_CVR		0x04
+#define PCXHR_DSP_ISR		0x08
+#define PCXHR_DSP_IVR		0x0C
+#define PCXHR_DSP_RXH		0x14
+#define PCXHR_DSP_TXH		0x14
+#define PCXHR_DSP_RXM		0x18
+#define PCXHR_DSP_TXM		0x18
+#define PCXHR_DSP_RXL		0x1C
+#define PCXHR_DSP_TXL		0x1C
+#define PCXHR_DSP_RESET		0x20
+#define PCXHR_DSP_OFFSET_MAX	0x20
+
+/* access to the card */
+#define PCXHR_PLX 1
+#define PCXHR_DSP 2
+
+#if (PCXHR_DSP_OFFSET_MAX > PCXHR_PLX_OFFSET_MIN)
+#undef  PCXHR_REG_TO_PORT(x)
+#else
+#define PCXHR_REG_TO_PORT(x)	((x)>PCXHR_DSP_OFFSET_MAX ? PCXHR_PLX : PCXHR_DSP)
+#endif
+#define PCXHR_INPB(mgr,x)	inb((mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+#define PCXHR_INPL(mgr,x)	inl((mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+#define PCXHR_OUTPB(mgr,x,data)	outb((data), (mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+#define PCXHR_OUTPL(mgr,x,data)	outl((data), (mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+/* attention : access the PCXHR_DSP_* registers with inb and outb only ! */
+
+/* params used with PCXHR_PLX_MBOX0 */
+#define PCXHR_MBOX0_HF5			(1 << 0)
+#define PCXHR_MBOX0_HF4			(1 << 1)
+#define PCXHR_MBOX0_BOOT_HERE		(1 << 23)
+/* params used with PCXHR_PLX_IRQCS */
+#define PCXHR_IRQCS_ENABLE_PCIIRQ	(1 << 8)
+#define PCXHR_IRQCS_ENABLE_PCIDB	(1 << 9)
+#define PCXHR_IRQCS_ACTIVE_PCIDB	(1 << 13)
+/* params used with PCXHR_PLX_CHIPSC */
+#define PCXHR_CHIPSC_INIT_VALUE		0x100D767E
+#define PCXHR_CHIPSC_RESET_XILINX	(1 << 16)
+#define PCXHR_CHIPSC_GPI_USERI		(1 << 17)
+#define PCXHR_CHIPSC_DATA_CLK		(1 << 24)
+#define PCXHR_CHIPSC_DATA_IN		(1 << 26)
+
+/* params used with PCXHR_DSP_ICR */
+#define PCXHR_ICR_HI08_RREQ		0x01
+#define PCXHR_ICR_HI08_TREQ		0x02
+#define PCXHR_ICR_HI08_HDRQ		0x04
+#define PCXHR_ICR_HI08_HF0		0x08
+#define PCXHR_ICR_HI08_HF1		0x10
+#define PCXHR_ICR_HI08_HLEND		0x20
+#define PCXHR_ICR_HI08_INIT		0x80
+/* params used with PCXHR_DSP_CVR */
+#define PCXHR_CVR_HI08_HC		0x80
+/* params used with PCXHR_DSP_ISR */
+#define PCXHR_ISR_HI08_RXDF		0x01
+#define PCXHR_ISR_HI08_TXDE		0x02
+#define PCXHR_ISR_HI08_TRDY		0x04
+#define PCXHR_ISR_HI08_ERR		0x08
+#define PCXHR_ISR_HI08_CHK		0x10
+#define PCXHR_ISR_HI08_HREQ		0x80
+
+
+/* constants used for delay in msec */
+#define PCXHR_WAIT_DEFAULT		2
+#define PCXHR_WAIT_IT			25
+#define PCXHR_WAIT_IT_EXTRA		65
+
+/*
+ * pcxhr_check_reg_bit - wait for the specified bit is set/reset on a register
+ * @reg: register to check
+ * @mask: bit mask
+ * @bit: resultant bit to be checked
+ * @time: time-out of loop in msec
+ *
+ * returns zero if a bit matches, or a negative error code.
+ */
+static int pcxhr_check_reg_bit(struct pcxhr_mgr *mgr, unsigned int reg,
+			       unsigned char mask, unsigned char bit, int time,
+			       unsigned char* read)
+{
+	int i = 0;
+	unsigned long end_time = jiffies + (time * HZ + 999) / 1000;
+	do {
+		*read = PCXHR_INPB(mgr, reg);
+		if ((*read & mask) == bit) {
+			if (i > 100)
+				snd_printdd("ATTENTION! check_reg(%x) loopcount=%d\n",
+					    reg, i);
+			return 0;
+		}
+		i++;
+	} while (time_after_eq(end_time, jiffies));
+	snd_printk(KERN_ERR "pcxhr_check_reg_bit: timeout, reg=%x, mask=0x%x, val=0x%x\n",
+		   reg, mask, *read);
+	return -EIO;
+}
+
+/* constants used with pcxhr_check_reg_bit() */
+#define PCXHR_TIMEOUT_DSP		200
+
+
+#define PCXHR_MASK_EXTRA_INFO		0x0000FE
+#define PCXHR_MASK_IT_HF0		0x000100
+#define PCXHR_MASK_IT_HF1		0x000200
+#define PCXHR_MASK_IT_NO_HF0_HF1	0x000400
+#define PCXHR_MASK_IT_MANAGE_HF5	0x000800
+#define PCXHR_MASK_IT_WAIT		0x010000
+#define PCXHR_MASK_IT_WAIT_EXTRA	0x020000
+
+#define PCXHR_IT_SEND_BYTE_XILINX	(0x0000003C | PCXHR_MASK_IT_HF0)
+#define PCXHR_IT_TEST_XILINX		(0x0000003C | PCXHR_MASK_IT_HF1 | \
+					 PCXHR_MASK_IT_MANAGE_HF5)
+#define PCXHR_IT_DOWNLOAD_BOOT		(0x0000000C | PCXHR_MASK_IT_HF1 | \
+					 PCXHR_MASK_IT_MANAGE_HF5 | PCXHR_MASK_IT_WAIT)
+#define PCXHR_IT_RESET_BOARD_FUNC	(0x0000000C | PCXHR_MASK_IT_HF0 | \
+					 PCXHR_MASK_IT_MANAGE_HF5 | PCXHR_MASK_IT_WAIT_EXTRA)
+#define PCXHR_IT_DOWNLOAD_DSP		(0x0000000C | \
+					 PCXHR_MASK_IT_MANAGE_HF5 | PCXHR_MASK_IT_WAIT)
+#define PCXHR_IT_DEBUG			(0x0000005A | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_RESET_SEMAPHORE	(0x0000005C | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_MESSAGE		(0x00000074 | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_RESET_CHK		(0x00000076 | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_UPDATE_RBUFFER		(0x00000078 | PCXHR_MASK_IT_NO_HF0_HF1)
+
+static int pcxhr_send_it_dsp(struct pcxhr_mgr *mgr, unsigned int itdsp, int atomic)
+{
+	int err;
+	unsigned char reg;
+
+	if (itdsp & PCXHR_MASK_IT_MANAGE_HF5) {
+		/* clear hf5 bit */
+		PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0,
+			    PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & ~PCXHR_MBOX0_HF5);
+	}
+	if ((itdsp & PCXHR_MASK_IT_NO_HF0_HF1) == 0) {
+		reg = PCXHR_ICR_HI08_RREQ | PCXHR_ICR_HI08_TREQ | PCXHR_ICR_HI08_HDRQ;
+		if (itdsp & PCXHR_MASK_IT_HF0)
+			reg |= PCXHR_ICR_HI08_HF0;
+		if (itdsp & PCXHR_MASK_IT_HF1)
+			reg |= PCXHR_ICR_HI08_HF1;
+		PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg);
+	}
+	reg = (unsigned char)(((itdsp & PCXHR_MASK_EXTRA_INFO) >> 1) | PCXHR_CVR_HI08_HC);
+	PCXHR_OUTPB(mgr, PCXHR_DSP_CVR, reg);
+	if (itdsp & PCXHR_MASK_IT_WAIT) {
+		if (atomic)
+			mdelay(PCXHR_WAIT_IT);
+		else
+			msleep(PCXHR_WAIT_IT);
+	}
+	if (itdsp & PCXHR_MASK_IT_WAIT_EXTRA) {
+		if (atomic)
+			mdelay(PCXHR_WAIT_IT_EXTRA);
+		else
+			msleep(PCXHR_WAIT_IT);
+	}
+	/* wait for CVR_HI08_HC == 0 */
+	err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_CVR,  PCXHR_CVR_HI08_HC, 0,
+				  PCXHR_TIMEOUT_DSP, &reg);
+	if (err) {
+		snd_printk(KERN_ERR "pcxhr_send_it_dsp : TIMEOUT CVR\n");
+		return err;
+	}
+	if (itdsp & PCXHR_MASK_IT_MANAGE_HF5) {
+		/* wait for hf5 bit */
+		err = pcxhr_check_reg_bit(mgr, PCXHR_PLX_MBOX0, PCXHR_MBOX0_HF5,
+					  PCXHR_MBOX0_HF5, PCXHR_TIMEOUT_DSP, &reg);
+		if (err) {
+			snd_printk(KERN_ERR "pcxhr_send_it_dsp : TIMEOUT HF5\n");
+			return err;
+		}
+	}
+	return 0; /* retry not handled here */
+}
+
+void pcxhr_reset_xilinx_com(struct pcxhr_mgr *mgr)
+{
+	/* reset second xilinx */
+	PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC,
+		    PCXHR_CHIPSC_INIT_VALUE & ~PCXHR_CHIPSC_RESET_XILINX);
+}
+
+static void pcxhr_enable_irq(struct pcxhr_mgr *mgr, int enable)
+{
+	unsigned int reg = PCXHR_INPL(mgr, PCXHR_PLX_IRQCS);
+	/* enable/disable interrupts */
+	if (enable)
+		reg |=  (PCXHR_IRQCS_ENABLE_PCIIRQ | PCXHR_IRQCS_ENABLE_PCIDB);
+	else
+		reg &= ~(PCXHR_IRQCS_ENABLE_PCIIRQ | PCXHR_IRQCS_ENABLE_PCIDB);
+	PCXHR_OUTPL(mgr, PCXHR_PLX_IRQCS, reg);
+}
+
+void pcxhr_reset_dsp(struct pcxhr_mgr *mgr)
+{
+	/* disable interrupts */
+	pcxhr_enable_irq(mgr, 0);
+
+	/* let's reset the DSP */
+	PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, 0);
+	msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */
+	PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, 3);
+	msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */
+
+	/* reset mailbox */
+	PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0, 0);
+}
+
+void pcxhr_enable_dsp(struct pcxhr_mgr *mgr)
+{
+	/* enable interrupts */
+	pcxhr_enable_irq(mgr, 1);
+}
+
+/*
+ * load the xilinx image
+ */
+int pcxhr_load_xilinx_binary(struct pcxhr_mgr *mgr, const struct firmware *xilinx, int second)
+{
+	unsigned int i;
+	unsigned int chipsc;
+	unsigned char data;
+	unsigned char mask;
+	unsigned char *image;
+
+	/* test first xilinx */
+	chipsc = PCXHR_INPL(mgr, PCXHR_PLX_CHIPSC);
+	if (!second) {
+		if (chipsc & PCXHR_CHIPSC_GPI_USERI) {
+			snd_printdd("no need to load first xilinx\n");
+			return 0; /* first xilinx is already present and cannot be reset */
+		}
+	} else {
+		if ((chipsc & PCXHR_CHIPSC_GPI_USERI) == 0) {
+			snd_printk(KERN_ERR "error loading first xilinx\n");
+			return -EINVAL;
+		}
+		/* activate second xilinx */
+		chipsc |= PCXHR_CHIPSC_RESET_XILINX;
+		PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+		msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */
+	}
+	image = xilinx->data;
+	for (i = 0; i < xilinx->size; i++, image++) {
+		data = *image;
+		mask = 0x80;
+		while (mask) {
+			chipsc &= ~(PCXHR_CHIPSC_DATA_CLK | PCXHR_CHIPSC_DATA_IN);
+			if (data & mask)
+				chipsc |= PCXHR_CHIPSC_DATA_IN;
+			PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+			chipsc |= PCXHR_CHIPSC_DATA_CLK;
+			PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+			mask >>= 1;
+		}
+		/* don't take too much time in this loop... */
+		cond_resched();
+	}
+	chipsc &= ~(PCXHR_CHIPSC_DATA_CLK | PCXHR_CHIPSC_DATA_IN);
+	PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+	/* wait 2 msec (time to boot the xilinx before any access) */
+	msleep( PCXHR_WAIT_DEFAULT );
+	return 0;
+}
+
+/*
+ * send an executable file to the DSP
+ */
+static int pcxhr_download_dsp(struct pcxhr_mgr *mgr, const struct firmware *dsp)
+{
+	int err;
+	unsigned int i;
+	unsigned int len;
+	unsigned char *data;
+	unsigned char dummy;
+	/* check the length of boot image */
+	snd_assert(dsp->size > 0, return -EINVAL);
+	snd_assert(dsp->size % 3 == 0, return -EINVAL);
+	snd_assert(dsp->data, return -EINVAL);
+	/* transfert data buffer from PC to DSP */
+	for (i = 0; i < dsp->size; i += 3) {
+		data = dsp->data + i;
+		if (i == 0) {
+			/* test data header consistency */
+			len = (unsigned int)((data[0]<<16) + (data[1]<<8) + data[2]);
+			snd_assert((len==0) || (dsp->size == (len+2)*3), return -EINVAL);
+		}
+		/* wait DSP ready for new transfer */
+		err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
+					  PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, &dummy);
+		if (err) {
+			snd_printk(KERN_ERR "dsp loading error at position %d\n", i);
+			return err;
+		}
+		/* send host data */
+		PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, data[0]);
+		PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, data[1]);
+		PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, data[2]);
+
+		/* don't take too much time in this loop... */
+		cond_resched();
+	}
+	/* give some time to boot the DSP */
+	msleep(PCXHR_WAIT_DEFAULT);
+	return 0;
+}
+
+/*
+ * load the eeprom image
+ */
+int pcxhr_load_eeprom_binary(struct pcxhr_mgr *mgr, const struct firmware *eeprom)
+{
+	int err;
+	unsigned char reg;
+
+	/* init value of the ICR register */
+	reg = PCXHR_ICR_HI08_RREQ | PCXHR_ICR_HI08_TREQ | PCXHR_ICR_HI08_HDRQ;
+	if (PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & PCXHR_MBOX0_BOOT_HERE) {
+		/* no need to load the eeprom binary, but init the HI08 interface */
+		PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg | PCXHR_ICR_HI08_INIT);
+		msleep(PCXHR_WAIT_DEFAULT);
+		PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg);
+		msleep(PCXHR_WAIT_DEFAULT);
+		snd_printdd("no need to load eeprom boot\n");
+		return 0;
+	}
+	PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg);
+
+	err = pcxhr_download_dsp(mgr, eeprom);
+	if (err)
+		return err;
+	/* wait for chk bit */
+	return pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+				   PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, &reg);
+}
+
+/*
+ * load the boot image
+ */
+int pcxhr_load_boot_binary(struct pcxhr_mgr *mgr, const struct firmware *boot)
+{
+	int err;
+	unsigned int physaddr = mgr->hostport.addr;
+	unsigned char dummy;
+
+	/* send the hostport address to the DSP (only the upper 24 bit !) */
+	snd_assert((physaddr & 0xff) == 0, return -EINVAL);
+	PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX1, (physaddr >> 8));
+
+	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_BOOT, 0);
+	if (err)
+		return err;
+	/* clear hf5 bit */
+	PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0,
+		    PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & ~PCXHR_MBOX0_HF5);
+
+	err = pcxhr_download_dsp(mgr, boot);
+	if (err)
+		return err;
+	/* wait for hf5 bit */
+	return pcxhr_check_reg_bit(mgr, PCXHR_PLX_MBOX0, PCXHR_MBOX0_HF5,
+				   PCXHR_MBOX0_HF5, PCXHR_TIMEOUT_DSP, &dummy);
+}
+
+/*
+ * load the final dsp image
+ */
+int pcxhr_load_dsp_binary(struct pcxhr_mgr *mgr, const struct firmware *dsp)
+{
+	int err;
+	unsigned char dummy;
+	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_BOARD_FUNC, 0);
+	if (err)
+		return err;
+	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_DSP, 0);
+	if (err)
+		return err;
+	err = pcxhr_download_dsp(mgr, dsp);
+	if (err)
+		return err;
+	/* wait for chk bit */
+	return pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+				   PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, &dummy);
+}
+
+
+struct pcxhr_cmd_info {
+	u32 opcode;		/* command word */
+	u16 st_length;		/* status length */
+	u16 st_type;		/* status type (RMH_SSIZE_XXX) */
+};
+
+/* RMH status type */
+enum {
+	RMH_SSIZE_FIXED = 0,	/* status size fix (st_length = 0..x) */
+	RMH_SSIZE_ARG = 1,	/* status size given in the LSB byte (used with st_length = 1) */
+	RMH_SSIZE_MASK = 2,	/* status size given in bitmask  (used with st_length = 1) */
+};
+
+/*
+ * Array of DSP commands
+ */
+static struct pcxhr_cmd_info pcxhr_dsp_cmds[] = {
+[CMD_VERSION] =				{ 0x010000, 1, RMH_SSIZE_FIXED },
+[CMD_SUPPORTED] =			{ 0x020000, 4, RMH_SSIZE_FIXED },
+[CMD_TEST_IT] =				{ 0x040000, 1, RMH_SSIZE_FIXED },
+[CMD_SEND_IRQA] =			{ 0x070001, 0, RMH_SSIZE_FIXED },
+[CMD_ACCESS_IO_WRITE] =			{ 0x090000, 1, RMH_SSIZE_ARG },
+[CMD_ACCESS_IO_READ] =			{ 0x094000, 1, RMH_SSIZE_ARG },
+[CMD_ASYNC] =				{ 0x0a0000, 1, RMH_SSIZE_ARG },
+[CMD_MODIFY_CLOCK] =			{ 0x0d0000, 0, RMH_SSIZE_FIXED },
+[CMD_RESYNC_AUDIO_INPUTS] =		{ 0x0e0000, 0, RMH_SSIZE_FIXED },
+[CMD_GET_DSP_RESOURCES] =		{ 0x100000, 4, RMH_SSIZE_FIXED },
+[CMD_SET_TIMER_INTERRUPT] =		{ 0x110000, 0, RMH_SSIZE_FIXED },
+[CMD_RES_PIPE] =			{ 0x400000, 0, RMH_SSIZE_FIXED },
+[CMD_FREE_PIPE] =			{ 0x410000, 0, RMH_SSIZE_FIXED },
+[CMD_CONF_PIPE] =			{ 0x422101, 0, RMH_SSIZE_FIXED },
+[CMD_STOP_PIPE] =			{ 0x470004, 0, RMH_SSIZE_FIXED },
+[CMD_PIPE_SAMPLE_COUNT] =		{ 0x49a000, 2, RMH_SSIZE_FIXED },
+[CMD_CAN_START_PIPE] =			{ 0x4b0000, 1, RMH_SSIZE_FIXED },
+[CMD_START_STREAM] =			{ 0x802000, 0, RMH_SSIZE_FIXED },
+[CMD_STREAM_OUT_LEVEL_ADJUST] =		{ 0x822000, 0, RMH_SSIZE_FIXED },
+[CMD_STOP_STREAM] =			{ 0x832000, 0, RMH_SSIZE_FIXED },
+[CMD_UPDATE_R_BUFFERS] =		{ 0x840000, 0, RMH_SSIZE_FIXED },
+[CMD_FORMAT_STREAM_OUT] =		{ 0x860000, 0, RMH_SSIZE_FIXED },
+[CMD_FORMAT_STREAM_IN] =		{ 0x870000, 0, RMH_SSIZE_FIXED },
+[CMD_STREAM_SAMPLE_COUNT] =		{ 0x902000, 2, RMH_SSIZE_FIXED },	/* stat_len = nb_streams * 2 */
+[CMD_AUDIO_LEVEL_ADJUST] =		{ 0xc22000, 0, RMH_SSIZE_FIXED },
+};
+
+#ifdef CONFIG_SND_DEBUG_DETECT
+static char* cmd_names[] = {
+[CMD_VERSION] =				"CMD_VERSION",
+[CMD_SUPPORTED] =			"CMD_SUPPORTED",
+[CMD_TEST_IT] =				"CMD_TEST_IT",
+[CMD_SEND_IRQA] =			"CMD_SEND_IRQA",
+[CMD_ACCESS_IO_WRITE] =			"CMD_ACCESS_IO_WRITE",
+[CMD_ACCESS_IO_READ] =			"CMD_ACCESS_IO_READ",
+[CMD_ASYNC] =				"CMD_ASYNC",
+[CMD_MODIFY_CLOCK] =			"CMD_MODIFY_CLOCK",
+[CMD_RESYNC_AUDIO_INPUTS] =		"CMD_RESYNC_AUDIO_INPUTS",
+[CMD_GET_DSP_RESOURCES] =		"CMD_GET_DSP_RESOURCES",
+[CMD_SET_TIMER_INTERRUPT] =		"CMD_SET_TIMER_INTERRUPT",
+[CMD_RES_PIPE] =			"CMD_RES_PIPE",
+[CMD_FREE_PIPE] =			"CMD_FREE_PIPE",
+[CMD_CONF_PIPE] =			"CMD_CONF_PIPE",
+[CMD_STOP_PIPE] =			"CMD_STOP_PIPE",
+[CMD_PIPE_SAMPLE_COUNT] =		"CMD_PIPE_SAMPLE_COUNT",
+[CMD_CAN_START_PIPE] =			"CMD_CAN_START_PIPE",
+[CMD_START_STREAM] =			"CMD_START_STREAM",
+[CMD_STREAM_OUT_LEVEL_ADJUST] =		"CMD_STREAM_OUT_LEVEL_ADJUST",
+[CMD_STOP_STREAM] =			"CMD_STOP_STREAM",
+[CMD_UPDATE_R_BUFFERS] =		"CMD_UPDATE_R_BUFFERS",
+[CMD_FORMAT_STREAM_OUT] =		"CMD_FORMAT_STREAM_OUT",
+[CMD_FORMAT_STREAM_IN] =		"CMD_FORMAT_STREAM_IN",
+[CMD_STREAM_SAMPLE_COUNT] =		"CMD_STREAM_SAMPLE_COUNT",
+[CMD_AUDIO_LEVEL_ADJUST] =		"CMD_AUDIO_LEVEL_ADJUST",
+};
+#endif
+
+
+static int pcxhr_read_rmh_status(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh)
+{
+	int err;
+	int i;
+	u32 data;
+	u32 size_mask;
+	unsigned char reg;
+	int max_stat_len;
+
+	if (rmh->stat_len < PCXHR_SIZE_MAX_STATUS)
+		max_stat_len = PCXHR_SIZE_MAX_STATUS;
+	else	max_stat_len = rmh->stat_len;
+
+	for (i = 0; i < rmh->stat_len; i++) {
+		/* wait for receiver full */
+		err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_RXDF,
+					  PCXHR_ISR_HI08_RXDF, PCXHR_TIMEOUT_DSP, &reg);
+		if (err) {
+			snd_printk(KERN_ERR "ERROR RMH stat: ISR:RXDF=1 (ISR = %x; i=%d )\n",
+				   reg, i);
+			return err;
+		}
+		/* read data */
+		data  = PCXHR_INPB(mgr, PCXHR_DSP_TXH) << 16;
+		data |= PCXHR_INPB(mgr, PCXHR_DSP_TXM) << 8;
+		data |= PCXHR_INPB(mgr, PCXHR_DSP_TXL);
+
+		/* need to update rmh->stat_len on the fly ?? */
+		if (i==0) {
+			if (rmh->dsp_stat != RMH_SSIZE_FIXED) {
+				if (rmh->dsp_stat == RMH_SSIZE_ARG) {
+					rmh->stat_len = (u16)(data & 0x0000ff) + 1;
+					data &= 0xffff00;
+				} else {
+					/* rmh->dsp_stat == RMH_SSIZE_MASK */
+					rmh->stat_len = 1;
+					size_mask = data;
+					while (size_mask) {
+						if (size_mask & 1)
+							rmh->stat_len++;
+						size_mask >>= 1;
+					}
+				}
+			}
+		}
+#ifdef CONFIG_SND_DEBUG_DETECT
+		if (rmh->cmd_idx < CMD_LAST_INDEX)
+			snd_printdd("    stat[%d]=%x\n", i, data);
+#endif
+		if (i < max_stat_len)
+			rmh->stat[i] = data;
+	}
+	if (rmh->stat_len > max_stat_len) {
+		snd_printdd("PCXHR : rmh->stat_len=%x too big\n", rmh->stat_len);
+		rmh->stat_len = max_stat_len;
+	}
+	return 0;
+}
+
+static int pcxhr_send_msg_nolock(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh)
+{
+	int err;
+	int i;
+	u32 data;
+	unsigned char reg;
+
+	snd_assert(rmh->cmd_len<PCXHR_SIZE_MAX_CMD, return -EINVAL);
+	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_MESSAGE, 1);
+	if (err) {
+		snd_printk(KERN_ERR "pcxhr_send_message : ED_DSP_CRASHED\n");
+		return err;
+	}
+	/* wait for chk bit */
+	err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+				  PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, &reg);
+	if (err)
+		return err;
+	/* reset irq chk */
+	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_CHK, 1);
+	if (err)
+		return err;
+	/* wait for chk bit == 0*/
+	err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK, 0,
+				  PCXHR_TIMEOUT_DSP, &reg);
+	if (err)
+		return err;
+
+	data = rmh->cmd[0];
+
+	if (rmh->cmd_len > 1)
+		data |= 0x008000;	/* MASK_MORE_THAN_1_WORD_COMMAND */
+	else
+		data &= 0xff7fff;	/* MASK_1_WORD_COMMAND */
+#ifdef CONFIG_SND_DEBUG_DETECT
+	if (rmh->cmd_idx < CMD_LAST_INDEX)
+		snd_printdd("MSG cmd[0]=%x (%s)\n", data, cmd_names[rmh->cmd_idx]);
+#endif
+
+	err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
+				  PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, &reg);
+	if (err)
+		return err;
+	PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF);
+	PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF);
+	PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF));
+
+	if (rmh->cmd_len > 1) {
+		/* send length */
+		data = rmh->cmd_len - 1;
+		err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
+					  PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, &reg);
+		if (err)
+			return err;
+		PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF);
+		PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF);
+		PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF));
+
+		for (i=1; i < rmh->cmd_len; i++) {
+			/* send other words */
+			data = rmh->cmd[i];
+#ifdef CONFIG_SND_DEBUG_DETECT
+			if (rmh->cmd_idx < CMD_LAST_INDEX)
+				snd_printdd("    cmd[%d]=%x\n", i, data);
+#endif
+			err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR,
+						  PCXHR_ISR_HI08_TRDY,
+						  PCXHR_ISR_HI08_TRDY,
+						  PCXHR_TIMEOUT_DSP, &reg);
+			if (err)
+				return err;
+			PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF);
+			PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF);
+			PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF));
+		}
+	}
+	/* wait for chk bit */
+	err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+				  PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, &reg);
+	if (err)
+		return err;
+	/* test status ISR */
+	if (reg & PCXHR_ISR_HI08_ERR) {
+		/* ERROR, wait for receiver full */
+		err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_RXDF,
+					  PCXHR_ISR_HI08_RXDF, PCXHR_TIMEOUT_DSP, &reg);
+		if (err) {
+			snd_printk(KERN_ERR "ERROR RMH: ISR:RXDF=1 (ISR = %x)\n", reg);
+			return err;
+		}
+		/* read error code */
+		data  = PCXHR_INPB(mgr, PCXHR_DSP_TXH) << 16;
+		data |= PCXHR_INPB(mgr, PCXHR_DSP_TXM) << 8;
+		data |= PCXHR_INPB(mgr, PCXHR_DSP_TXL);
+		snd_printk(KERN_ERR "ERROR RMH(%d): 0x%x\n", rmh->cmd_idx, data);
+		err = -EINVAL;
+	} else {
+		/* read the response data */
+		err = pcxhr_read_rmh_status(mgr, rmh);
+	}
+	/* reset semaphore */
+	if (pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_SEMAPHORE, 1) < 0)
+		return -EIO;
+	return err;
+}
+
+
+/**
+ * pcxhr_init_rmh - initialize the RMH instance
+ * @rmh: the rmh pointer to be initialized
+ * @cmd: the rmh command to be set
+ */
+void pcxhr_init_rmh(struct pcxhr_rmh *rmh, int cmd)
+{
+	snd_assert(cmd < CMD_LAST_INDEX, return);
+	rmh->cmd[0] = pcxhr_dsp_cmds[cmd].opcode;
+	rmh->cmd_len = 1;
+	rmh->stat_len = pcxhr_dsp_cmds[cmd].st_length;
+	rmh->dsp_stat = pcxhr_dsp_cmds[cmd].st_type;
+	rmh->cmd_idx = cmd;
+}
+
+
+void pcxhr_set_pipe_cmd_params(struct pcxhr_rmh *rmh, int capture,
+			       unsigned int param1, unsigned int param2,
+			       unsigned int param3)
+{
+	snd_assert(param1 <= MASK_FIRST_FIELD);
+	if (capture)
+		rmh->cmd[0] |= 0x800;		/* COMMAND_RECORD_MASK */
+	if (param1)
+		rmh->cmd[0] |= (param1 << FIELD_SIZE);
+	if (param2) {
+		snd_assert(param2 <= MASK_FIRST_FIELD);
+		rmh->cmd[0] |= param2;
+	}
+	if(param3) {
+		snd_assert(param3 <= MASK_DSP_WORD);
+		rmh->cmd[1] = param3;
+		rmh->cmd_len = 2;
+	}
+}
+
+/*
+ * pcxhr_send_msg - send a DSP message with spinlock
+ * @rmh: the rmh record to send and receive
+ *
+ * returns 0 if successful, or a negative error code.
+ */
+int pcxhr_send_msg(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh)
+{
+	unsigned long flags;
+	int err;
+	spin_lock_irqsave(&mgr->msg_lock, flags);
+	err = pcxhr_send_msg_nolock(mgr, rmh);
+	spin_unlock_irqrestore(&mgr->msg_lock, flags);
+	return err;
+}
+
+static inline int pcxhr_pipes_running(struct pcxhr_mgr *mgr)
+{
+	int start_mask = PCXHR_INPL(mgr, PCXHR_PLX_MBOX2);
+	/* least segnificant 12 bits are the pipe states for the playback audios */
+	/* next 12 bits are the pipe states for the capture audios
+	 * (PCXHR_PIPE_STATE_CAPTURE_OFFSET)
+	 */
+	start_mask &= 0xffffff;
+	snd_printdd("CMD_PIPE_STATE MBOX2=0x%06x\n", start_mask);
+	return start_mask;
+}
+
+#define PCXHR_PIPE_STATE_CAPTURE_OFFSET		12
+#define MAX_WAIT_FOR_DSP			20
+
+static int pcxhr_prepair_pipe_start(struct pcxhr_mgr *mgr, int audio_mask, int *retry)
+{
+	struct pcxhr_rmh rmh;
+	int err;
+	int audio = 0;
+
+	*retry = 0;
+	while (audio_mask) {
+		if (audio_mask & 1) {
+			pcxhr_init_rmh(&rmh, CMD_CAN_START_PIPE);
+			if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) {
+				/* can start playback pipe */
+				pcxhr_set_pipe_cmd_params(&rmh, 0, audio, 0, 0);
+			} else {
+				/* can start capture pipe */
+				pcxhr_set_pipe_cmd_params(&rmh, 1, audio -
+							  PCXHR_PIPE_STATE_CAPTURE_OFFSET,
+							  0, 0);
+			}
+			err = pcxhr_send_msg(mgr, &rmh);
+			if (err) {
+				snd_printk(KERN_ERR
+					   "error pipe start (CMD_CAN_START_PIPE) err=%x!\n",
+					   err);
+				return err;
+			}
+			/* if the pipe couldn't be prepaired for start, retry it later */
+			if (rmh.stat[0] == 0)
+				*retry |= (1<<audio);
+		}
+		audio_mask>>=1;
+		audio++;
+	}
+	return 0;
+}
+
+static int pcxhr_stop_pipes(struct pcxhr_mgr *mgr, int audio_mask)
+{
+	struct pcxhr_rmh rmh;
+	int err;
+	int audio = 0;
+
+	while (audio_mask) {
+		if (audio_mask & 1) {
+			pcxhr_init_rmh(&rmh, CMD_STOP_PIPE);
+			if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) {
+				/* stop playback pipe */
+				pcxhr_set_pipe_cmd_params(&rmh, 0, audio, 0, 0);
+			} else {
+				/* stop capture pipe */
+				pcxhr_set_pipe_cmd_params(&rmh, 1, audio -
+							  PCXHR_PIPE_STATE_CAPTURE_OFFSET,
+							  0, 0);
+			}
+			err = pcxhr_send_msg(mgr, &rmh);
+			if (err) {
+				snd_printk(KERN_ERR
+					   "error pipe stop (CMD_STOP_PIPE) err=%x!\n",
+					   err);
+				return err;
+			}
+		}
+		audio_mask>>=1;
+		audio++;
+	}
+	return 0;
+}
+
+static int pcxhr_toggle_pipes(struct pcxhr_mgr *mgr, int audio_mask)
+{
+	struct pcxhr_rmh rmh;
+	int err;
+	int audio = 0;
+
+	while (audio_mask) {
+		if (audio_mask & 1) {
+			pcxhr_init_rmh(&rmh, CMD_CONF_PIPE);
+			if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET)
+				pcxhr_set_pipe_cmd_params(&rmh, 0, 0, 0, 1 << audio);
+			else
+				pcxhr_set_pipe_cmd_params(&rmh, 1, 0, 0,
+							  1 << (audio - PCXHR_PIPE_STATE_CAPTURE_OFFSET));
+			err = pcxhr_send_msg(mgr, &rmh);
+			if (err) {
+				snd_printk(KERN_ERR
+					   "error pipe start (CMD_CONF_PIPE) err=%x!\n",
+					   err);
+				return err;
+			}
+		}
+		audio_mask>>=1;
+		audio++;
+	}
+	/* now fire the interrupt on the card */
+	pcxhr_init_rmh(&rmh, CMD_SEND_IRQA);
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err) {
+		snd_printk(KERN_ERR "error pipe start (CMD_SEND_IRQA) err=%x!\n", err );
+		return err;
+	}
+	return 0;
+}
+
+
+
+int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask, int capture_mask, int start)
+{
+	int state, i, err;
+	int audio_mask;
+
+#ifdef CONFIG_SND_DEBUG_DETECT
+	struct timeval my_tv1, my_tv2;
+	do_gettimeofday(&my_tv1);
+#endif
+	audio_mask = (playback_mask | (capture_mask << PCXHR_PIPE_STATE_CAPTURE_OFFSET));
+	/* current pipe state (playback + record) */
+	state = pcxhr_pipes_running(mgr);
+	snd_printdd("pcxhr_set_pipe_state %s (mask %x current %x)\n",
+		    start ? "START" : "STOP", audio_mask, state);
+	if (start) {
+		audio_mask &= ~state;	/* start only pipes that are not yet started */
+		state = audio_mask;
+		for (i = 0; i < MAX_WAIT_FOR_DSP; i++) {
+			err = pcxhr_prepair_pipe_start(mgr, state, &state);
+			if (err)
+				return err;
+			if (state == 0)
+				break;	/* success, all pipes prepaired for start */
+			mdelay(1);		/* otherwise wait 1 millisecond and retry */
+		}
+	} else {
+		audio_mask &= state;	/* stop only pipes that are started */
+	}
+	if (audio_mask == 0)
+		return 0;
+
+	err = pcxhr_toggle_pipes(mgr, audio_mask);
+	if (err)
+		return err;
+
+	i = 0;
+	while (1) {
+		state = pcxhr_pipes_running(mgr);
+		/* have all pipes the new state ? */
+		if ((state & audio_mask) == (start ? audio_mask : 0))
+			break;
+		if (++i >= MAX_WAIT_FOR_DSP * 100) {
+			snd_printk(KERN_ERR "error pipe start/stop (ED_NO_RESPONSE_AT_IRQA)\n");
+			return -EBUSY;
+		}
+		udelay(10);			/* wait 10 microseconds */
+	}
+	if (!start) {
+		err = pcxhr_stop_pipes(mgr, audio_mask);
+		if (err)
+			return err;
+	}
+#ifdef CONFIG_SND_DEBUG_DETECT
+	do_gettimeofday(&my_tv2);
+	snd_printdd("***SET PIPE STATE*** TIME = %ld (err = %x)\n",
+		    my_tv2.tv_usec - my_tv1.tv_usec, err);
+#endif
+	return 0;
+}
+
+int pcxhr_write_io_num_reg_cont(struct pcxhr_mgr *mgr, unsigned int mask,
+				unsigned int value, int *changed)
+{
+	struct pcxhr_rmh rmh;
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&mgr->msg_lock, flags);
+	if ((mgr->io_num_reg_cont & mask) == value) {
+		snd_printdd("IO_NUM_REG_CONT mask %x already is set to %x\n", mask, value);
+		if (changed)
+			*changed = 0;
+		spin_unlock_irqrestore(&mgr->msg_lock, flags);
+		return 0;	/* already programmed */
+	}
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+	rmh.cmd[0] |= IO_NUM_REG_CONT;
+	rmh.cmd[1]  = mask;
+	rmh.cmd[2]  = value;
+	rmh.cmd_len = 3;
+	err = pcxhr_send_msg_nolock(mgr, &rmh);
+	if (err == 0) {
+		mgr->io_num_reg_cont &= ~mask;
+		mgr->io_num_reg_cont |= value;
+		if (changed)
+			*changed = 1;
+	}
+	spin_unlock_irqrestore(&mgr->msg_lock, flags);
+	return err;
+}
+
+#define PCXHR_IRQ_TIMER		0x000300
+#define PCXHR_IRQ_FREQ_CHANGE	0x000800
+#define PCXHR_IRQ_TIME_CODE	0x001000
+#define PCXHR_IRQ_NOTIFY	0x002000
+#define PCXHR_IRQ_ASYNC		0x008000
+#define PCXHR_IRQ_MASK		0x00bb00
+#define PCXHR_FATAL_DSP_ERR	0xff0000
+
+enum pcxhr_async_err_src {
+	PCXHR_ERR_PIPE,
+	PCXHR_ERR_STREAM,
+	PCXHR_ERR_AUDIO
+};
+
+static int pcxhr_handle_async_err(struct pcxhr_mgr *mgr, u32 err,
+				  enum pcxhr_async_err_src err_src, int pipe,
+				  int is_capture)
+{
+#ifdef CONFIG_SND_DEBUG_DETECT
+	static char* err_src_name[] = {
+		[PCXHR_ERR_PIPE]	= "Pipe",
+		[PCXHR_ERR_STREAM]	= "Stream",
+		[PCXHR_ERR_AUDIO]	= "Audio"
+	};
+#endif
+	if (err & 0xfff)
+		err &= 0xfff;
+	else
+		err = ((err >> 12) & 0xfff);
+	if (!err)
+		return 0;
+	snd_printdd("CMD_ASYNC : Error %s %s Pipe %d err=%x\n", err_src_name[err_src],
+		    is_capture ? "Record" : "Play", pipe, err);
+	if (err == 0xe01)
+		mgr->async_err_stream_xrun++;
+	else if (err == 0xe10)
+		mgr->async_err_pipe_xrun++;
+	else
+		mgr->async_err_other_last = (int)err;
+	return 1;
+}
+
+
+void pcxhr_msg_tasklet(unsigned long arg)
+{
+	struct pcxhr_mgr *mgr = (struct pcxhr_mgr *)(arg);
+	struct pcxhr_rmh *prmh = mgr->prmh;
+	int err;
+	int i, j;
+
+	if (mgr->src_it_dsp & PCXHR_IRQ_FREQ_CHANGE)
+		snd_printdd("TASKLET : PCXHR_IRQ_FREQ_CHANGE event occured\n");
+	if (mgr->src_it_dsp & PCXHR_IRQ_TIME_CODE)
+		snd_printdd("TASKLET : PCXHR_IRQ_TIME_CODE event occured\n");
+	if (mgr->src_it_dsp & PCXHR_IRQ_NOTIFY)
+		snd_printdd("TASKLET : PCXHR_IRQ_NOTIFY event occured\n");
+	if (mgr->src_it_dsp & PCXHR_IRQ_ASYNC) {
+		snd_printdd("TASKLET : PCXHR_IRQ_ASYNC event occured\n");
+
+		pcxhr_init_rmh(prmh, CMD_ASYNC);
+		prmh->cmd[0] |= 1;	/* add SEL_ASYNC_EVENTS */
+		/* this is the only one extra long response command */
+		prmh->stat_len = PCXHR_SIZE_MAX_LONG_STATUS;
+		err = pcxhr_send_msg(mgr, prmh);
+		if (err)
+			snd_printk(KERN_ERR "ERROR pcxhr_msg_tasklet=%x;\n", err);
+		i = 1;
+		while (i < prmh->stat_len) {
+			int nb_audio = (prmh->stat[i] >> FIELD_SIZE) & MASK_FIRST_FIELD;
+			int nb_stream = (prmh->stat[i] >> (2*FIELD_SIZE)) & MASK_FIRST_FIELD;
+			int pipe = prmh->stat[i] & MASK_FIRST_FIELD;
+			int is_capture = prmh->stat[i] & 0x400000;
+			u32 err;
+
+			if (prmh->stat[i] & 0x800000) {	/* if BIT_END */
+				snd_printdd("TASKLET : End%sPipe %d\n",
+					    is_capture ? "Record" : "Play", pipe);
+			}
+			i++;
+			err = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1];
+			if (err)
+				pcxhr_handle_async_err(mgr, err, PCXHR_ERR_PIPE,
+						       pipe, is_capture);
+			i += 2;
+			for (j = 0; j < nb_stream; j++) {
+				err = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1];
+				if (err)
+					pcxhr_handle_async_err(mgr, err, PCXHR_ERR_STREAM,
+							       pipe, is_capture);
+				i += 2;
+			}
+			for (j = 0; j < nb_audio; j++) {
+				err = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1];
+				if (err)
+					pcxhr_handle_async_err(mgr, err, PCXHR_ERR_AUDIO,
+							       pipe, is_capture);
+				i += 2;
+			}
+		}
+	}
+}
+
+static u_int64_t pcxhr_stream_read_position(struct pcxhr_mgr *mgr,
+					    struct pcxhr_stream *stream)
+{
+	u_int64_t hw_sample_count;
+	struct pcxhr_rmh rmh;
+	int err, stream_mask;
+
+	stream_mask = stream->pipe->is_capture ? 1 : 1<<stream->substream->number;
+
+	/* get sample count for one stream */
+	pcxhr_init_rmh(&rmh, CMD_STREAM_SAMPLE_COUNT);
+	pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture,
+				  stream->pipe->first_audio, 0, stream_mask);
+	/* rmh.stat_len = 2; */		/* 2 resp data for each stream of the pipe */
+
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err)
+		return 0;
+
+	hw_sample_count = ((u_int64_t)rmh.stat[0]) << 24;
+	hw_sample_count += (u_int64_t)rmh.stat[1];
+
+	snd_printdd("stream %c%d : abs samples real(%ld) timer(%ld)\n",
+		    stream->pipe->is_capture ? 'C':'P', stream->substream->number,
+		    (long unsigned int)hw_sample_count,
+		    (long unsigned int)(stream->timer_abs_periods +
+					stream->timer_period_frag + PCXHR_GRANULARITY));
+
+	return hw_sample_count;
+}
+
+static void pcxhr_update_timer_pos(struct pcxhr_mgr *mgr,
+				   struct pcxhr_stream *stream, int samples_to_add)
+{
+	if (stream->substream && (stream->status == PCXHR_STREAM_STATUS_RUNNING)) {
+		u_int64_t new_sample_count;
+		int elapsed = 0;
+		int hardware_read = 0;
+		struct snd_pcm_runtime *runtime = stream->substream->runtime;
+
+		if (samples_to_add < 0) {
+			stream->timer_is_synced = 0;
+			/* add default if no hardware_read possible */
+			samples_to_add = PCXHR_GRANULARITY;
+		}
+
+		if (!stream->timer_is_synced) {
+			if (stream->timer_abs_periods != 0 ||
+			    stream->timer_period_frag + PCXHR_GRANULARITY >=
+			    runtime->period_size) {
+				new_sample_count = pcxhr_stream_read_position(mgr, stream);
+				hardware_read = 1;
+				if (new_sample_count >= PCXHR_GRANULARITY_MIN) {
+					/* sub security offset because of jitter and
+					 * finer granularity of dsp time (MBOX4)
+					 */
+					new_sample_count -= PCXHR_GRANULARITY_MIN;
+					stream->timer_is_synced = 1;
+				}
+			}
+		}
+		if (!hardware_read) {
+			/* if we didn't try to sync the position, increment it
+			 * by PCXHR_GRANULARITY every timer interrupt
+			 */
+			new_sample_count = stream->timer_abs_periods +
+				stream->timer_period_frag + samples_to_add;
+		}
+		while (1) {
+			u_int64_t new_elapse_pos = stream->timer_abs_periods +
+				runtime->period_size;
+			if (new_elapse_pos > new_sample_count)
+				break;
+			elapsed = 1;
+			stream->timer_buf_periods++;
+			if (stream->timer_buf_periods >= runtime->periods)
+				stream->timer_buf_periods = 0;
+			stream->timer_abs_periods = new_elapse_pos;
+		}
+		if (new_sample_count >= stream->timer_abs_periods)
+			stream->timer_period_frag = (u_int32_t)(new_sample_count -
+								stream->timer_abs_periods);
+		else
+			snd_printk(KERN_ERR "ERROR new_sample_count too small ??? %lx\n",
+				   (long unsigned int)new_sample_count);
+
+		if (elapsed) {
+			spin_unlock(&mgr->lock);
+			snd_pcm_period_elapsed(stream->substream);
+			spin_lock(&mgr->lock);
+		}
+	}
+}
+
+
+irqreturn_t pcxhr_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct pcxhr_mgr *mgr = dev_id;
+	unsigned int reg;
+	int i, j;
+	struct snd_pcxhr *chip;
+
+	spin_lock(&mgr->lock);
+
+	reg = PCXHR_INPL(mgr, PCXHR_PLX_IRQCS);
+	if (! (reg & PCXHR_IRQCS_ACTIVE_PCIDB)) {
+		spin_unlock(&mgr->lock);
+		return IRQ_NONE;	/* this device did not cause the interrupt */
+	}
+
+	/* clear interrupt */
+	reg = PCXHR_INPL(mgr, PCXHR_PLX_L2PCIDB);
+	PCXHR_OUTPL(mgr, PCXHR_PLX_L2PCIDB, reg);
+
+	/* timer irq occured */
+	if (reg & PCXHR_IRQ_TIMER) {
+		int timer_toggle = reg & PCXHR_IRQ_TIMER;
+		/* is a 24 bit counter */
+		int dsp_time_new = PCXHR_INPL(mgr, PCXHR_PLX_MBOX4) & PCXHR_DSP_TIME_MASK;
+		int dsp_time_diff = dsp_time_new - mgr->dsp_time_last;
+
+		if (dsp_time_diff < 0 && mgr->dsp_time_last != PCXHR_DSP_TIME_INVALID) {
+			snd_printdd("ERROR DSP TIME old(%d) new(%d) -> "
+				    "resynchronize all streams\n",
+				    mgr->dsp_time_last, dsp_time_new);
+			mgr->dsp_time_err++;
+		}
+#ifdef CONFIG_SND_DEBUG_DETECT
+		if (dsp_time_diff == 0)
+			snd_printdd("ERROR DSP TIME NO DIFF time(%d)\n", dsp_time_new);
+		else if (dsp_time_diff >= (2*PCXHR_GRANULARITY))
+			snd_printdd("ERROR DSP TIME TOO BIG old(%d) add(%d)\n",
+				    mgr->dsp_time_last, dsp_time_new - mgr->dsp_time_last);
+#endif
+		mgr->dsp_time_last = dsp_time_new;
+
+		if (timer_toggle == mgr->timer_toggle)
+			snd_printk(KERN_ERR "ERROR TIMER TOGGLE\n");
+		mgr->timer_toggle = timer_toggle;
+
+		reg &= ~PCXHR_IRQ_TIMER;
+		for (i = 0; i < mgr->num_cards; i++) {
+			chip = mgr->chip[i];
+			for (j = 0; j < chip->nb_streams_capt; j++)
+				pcxhr_update_timer_pos(mgr, &chip->capture_stream[j],
+						       dsp_time_diff);
+		}
+		for (i = 0; i < mgr->num_cards; i++) {
+			chip = mgr->chip[i];
+			for (j = 0; j < chip->nb_streams_play; j++)
+				pcxhr_update_timer_pos(mgr, &chip->playback_stream[j],
+						       dsp_time_diff);
+		}
+	}
+	/* other irq's handled in the tasklet */
+	if (reg & PCXHR_IRQ_MASK) {
+
+		/* as we didn't request any notifications, some kind of xrun error
+		 * will probably occured
+		 */
+		/* better resynchronize all streams next interrupt : */
+		mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;
+		
+		mgr->src_it_dsp = reg;
+		tasklet_hi_schedule(&mgr->msg_taskq);
+	}
+#ifdef CONFIG_SND_DEBUG_DETECT
+	if (reg & PCXHR_FATAL_DSP_ERR)
+		snd_printdd("FATAL DSP ERROR : %x\n", reg);
+#endif
+	spin_unlock(&mgr->lock);
+	return IRQ_HANDLED;	/* this device caused the interrupt */
+}

sound/pci/pcxhr/pcxhr_core.h

+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * low level interface with interrupt ans message handling
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef __SOUND_PCXHR_CORE_H
+#define __SOUND_PCXHR_CORE_H
+
+struct firmware;
+struct pcxhr_mgr;
+
+/* init and firmware download commands */
+void pcxhr_reset_xilinx_com(struct pcxhr_mgr *mgr);
+void pcxhr_reset_dsp(struct pcxhr_mgr *mgr);
+void pcxhr_enable_dsp(struct pcxhr_mgr *mgr);
+int pcxhr_load_xilinx_binary(struct pcxhr_mgr *mgr, const struct firmware *xilinx, int second);
+int pcxhr_load_eeprom_binary(struct pcxhr_mgr *mgr, const struct firmware *eeprom);
+int pcxhr_load_boot_binary(struct pcxhr_mgr *mgr, const struct firmware *boot);
+int pcxhr_load_dsp_binary(struct pcxhr_mgr *mgr, const struct firmware *dsp);
+
+/* DSP time available on MailBox4 register : 24 bit time samples() */
+#define PCXHR_DSP_TIME_MASK		0x00ffffff
+#define PCXHR_DSP_TIME_INVALID		0x10000000
+
+
+#define PCXHR_SIZE_MAX_CMD		8
+#define PCXHR_SIZE_MAX_STATUS		16
+#define PCXHR_SIZE_MAX_LONG_STATUS	256
+
+struct pcxhr_rmh {
+	u16	cmd_len;		/* length of the command to send (WORDs) */
+	u16	stat_len;		/* length of the status received (WORDs) */
+	u16	dsp_stat;		/* status type, RMP_SSIZE_XXX */
+	u16	cmd_idx;		/* index of the command */
+	u32	cmd[PCXHR_SIZE_MAX_CMD];
+	u32	stat[PCXHR_SIZE_MAX_STATUS];
+};
+
+enum {
+	CMD_VERSION,			/* cmd_len = 2	stat_len = 1 */
+	CMD_SUPPORTED,			/* cmd_len = 1	stat_len = 4 */
+	CMD_TEST_IT,			/* cmd_len = 1	stat_len = 1 */
+	CMD_SEND_IRQA,			/* cmd_len = 1	stat_len = 0 */
+	CMD_ACCESS_IO_WRITE,		/* cmd_len >= 1	stat_len >= 1 */
+	CMD_ACCESS_IO_READ,		/* cmd_len >= 1	stat_len >= 1 */
+	CMD_ASYNC,			/* cmd_len = 1	stat_len = 1 */
+	CMD_MODIFY_CLOCK,		/* cmd_len = 3	stat_len = 0 */
+	CMD_RESYNC_AUDIO_INPUTS,	/* cmd_len = 1	stat_len = 0 */
+	CMD_GET_DSP_RESOURCES,		/* cmd_len = 1	stat_len = 4 */
+	CMD_SET_TIMER_INTERRUPT,	/* cmd_len = 1	stat_len = 0 */
+	CMD_RES_PIPE,			/* cmd_len = 2	stat_len = 0 */
+	CMD_FREE_PIPE,			/* cmd_len = 1	stat_len = 0 */
+	CMD_CONF_PIPE,			/* cmd_len = 2	stat_len = 0 */
+	CMD_STOP_PIPE,			/* cmd_len = 1	stat_len = 0 */
+	CMD_PIPE_SAMPLE_COUNT,		/* cmd_len = 2	stat_len = 2 */
+	CMD_CAN_START_PIPE,		/* cmd_len >= 1	stat_len = 1 */
+	CMD_START_STREAM,		/* cmd_len = 2	stat_len = 0 */
+	CMD_STREAM_OUT_LEVEL_ADJUST,	/* cmd_len >= 1	stat_len = 0 */
+	CMD_STOP_STREAM,		/* cmd_len = 2	stat_len = 0 */
+	CMD_UPDATE_R_BUFFERS,		/* cmd_len = 4	stat_len = 0 */
+	CMD_FORMAT_STREAM_OUT,		/* cmd_len >= 2	stat_len = 0 */
+	CMD_FORMAT_STREAM_IN,		/* cmd_len >= 4	stat_len = 0 */
+	CMD_STREAM_SAMPLE_COUNT,	/* cmd_len = 2	stat_len = (2 * nb_stream) */
+	CMD_AUDIO_LEVEL_ADJUST,		/* cmd_len = 3	stat_len = 0 */
+	CMD_LAST_INDEX
+};
+
+#define MASK_DSP_WORD		0x00ffffff
+#define MASK_ALL_STREAM		0x00ffffff
+#define MASK_DSP_WORD_LEVEL	0x000001ff
+#define MASK_FIRST_FIELD	0x0000001f
+#define FIELD_SIZE		5
+
+/*
+ init the rmh struct; by default cmd_len is set to 1
+ */
+void pcxhr_init_rmh(struct pcxhr_rmh *rmh, int cmd);
+
+void pcxhr_set_pipe_cmd_params(struct pcxhr_rmh* rmh, int capture, unsigned int param1,
+			       unsigned int param2, unsigned int param3);
+
+/*
+ send the rmh
+ */
+int pcxhr_send_msg(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh);
+
+
+/* values used for CMD_ACCESS_IO_WRITE and CMD_ACCESS_IO_READ */
+#define IO_NUM_REG_CONT			0
+#define IO_NUM_REG_GENCLK		1
+#define IO_NUM_REG_MUTE_OUT		2
+#define IO_NUM_SPEED_RATIO		4
+#define IO_NUM_REG_STATUS		5
+#define IO_NUM_REG_CUER			10
+#define IO_NUM_UER_CHIP_REG		11
+#define IO_NUM_REG_OUT_ANA_LEVEL	20
+#define IO_NUM_REG_IN_ANA_LEVEL		21
+
+
+#define REG_CONT_UNMUTE_INPUTS		0x020000
+
+/* parameters used with register IO_NUM_REG_STATUS */
+#define REG_STATUS_OPTIONS		0
+#define REG_STATUS_AES_SYNC		8
+#define REG_STATUS_AES_1		9
+#define REG_STATUS_AES_2		10
+#define REG_STATUS_AES_3		11
+#define REG_STATUS_AES_4		12
+#define REG_STATUS_WORD_CLOCK		13
+#define REG_STATUS_INTER_SYNC		14
+#define REG_STATUS_CURRENT		0x80
+/* results */
+#define REG_STATUS_OPT_NO_VIDEO_SIGNAL	0x01
+#define REG_STATUS_OPT_DAUGHTER_MASK	0x1c
+#define REG_STATUS_OPT_ANALOG_BOARD	0x00
+#define REG_STATUS_OPT_NO_DAUGHTER	0x1c
+#define REG_STATUS_OPT_COMPANION_MASK	0xe0
+#define REG_STATUS_OPT_NO_COMPANION	0xe0
+#define REG_STATUS_SYNC_32000		0x00
+#define REG_STATUS_SYNC_44100		0x01
+#define REG_STATUS_SYNC_48000		0x02
+#define REG_STATUS_SYNC_64000		0x03
+#define REG_STATUS_SYNC_88200		0x04
+#define REG_STATUS_SYNC_96000		0x05
+#define REG_STATUS_SYNC_128000		0x06
+#define REG_STATUS_SYNC_176400		0x07
+#define REG_STATUS_SYNC_192000		0x08
+
+int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask, int capture_mask, int start);
+
+int pcxhr_write_io_num_reg_cont(struct pcxhr_mgr *mgr, unsigned int mask,
+				unsigned int value, int *changed);
+
+/* codec parameters */
+#define CS8416_RUN		0x200401
+#define CS8416_FORMAT_DETECT	0x200b00
+#define CS8416_CSB0		0x201900
+#define CS8416_CSB1		0x201a00
+#define CS8416_CSB2		0x201b00
+#define CS8416_CSB3		0x201c00
+#define CS8416_CSB4		0x201d00
+#define CS8416_VERSION		0x207f00
+
+#define CS8420_DATA_FLOW_CTL	0x200301
+#define CS8420_CLOCK_SRC_CTL	0x200401
+#define CS8420_RECEIVER_ERRORS	0x201000
+#define CS8420_SRC_RATIO	0x201e00
+#define CS8420_CSB0		0x202000
+#define CS8420_CSB1		0x202100
+#define CS8420_CSB2		0x202200
+#define CS8420_CSB3		0x202300
+#define CS8420_CSB4		0x202400
+#define CS8420_VERSION		0x207f00
+
+#define CS4271_MODE_CTL_1	0x200101
+#define CS4271_DAC_CTL		0x200201
+#define CS4271_VOLMIX		0x200301
+#define CS4271_VOLMUTE_LEFT	0x200401
+#define CS4271_VOLMUTE_RIGHT	0x200501
+#define CS4271_ADC_CTL		0x200601
+#define CS4271_MODE_CTL_2	0x200701
+
+#define CHIP_SIG_AND_MAP_SPI	0xff7f00
+
+/* codec selection */
+#define CS4271_01_CS		0x160018
+#define CS4271_23_CS		0x160019
+#define CS4271_45_CS		0x16001a
+#define CS4271_67_CS		0x16001b
+#define CS4271_89_CS		0x16001c
+#define CS4271_AB_CS		0x16001d
+#define CS8420_01_CS		0x080090
+#define CS8420_23_CS		0x080092
+#define CS8420_45_CS		0x080094
+#define CS8420_67_CS		0x080096
+#define CS8416_01_CS		0x080098
+
+
+/* interrupt handling */
+irqreturn_t pcxhr_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+void pcxhr_msg_tasklet(unsigned long arg);
+
+#endif /* __SOUND_PCXHR_CORE_H */

sound/pci/pcxhr/pcxhr_hwdep.c

+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * hwdep device manager
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <sound/driver.h>
+#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <sound/core.h>
+#include <sound/hwdep.h>
+#include "pcxhr.h"
+#include "pcxhr_mixer.h"
+#include "pcxhr_hwdep.h"
+#include "pcxhr_core.h"
+
+
+#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
+#if !defined(CONFIG_USE_PCXHRLOADER) && !defined(CONFIG_SND_PCXHR) /* built-in kernel */
+#define SND_PCXHR_FW_LOADER	/* use the standard firmware loader */
+#endif
+#endif
+
+
+/*
+ * get basic information and init pcxhr card
+ */
+
+static int pcxhr_init_board(struct pcxhr_mgr *mgr)
+{
+	int err;
+	struct pcxhr_rmh rmh;
+	int card_streams;
+
+	/* calc the number of all streams used */
+	if (mgr->mono_capture)
+		card_streams = mgr->capture_chips * 2;
+	else
+		card_streams = mgr->capture_chips;
+	card_streams += mgr->playback_chips * PCXHR_PLAYBACK_STREAMS;
+
+	/* enable interrupts */
+	pcxhr_enable_dsp(mgr);
+
+	pcxhr_init_rmh(&rmh, CMD_SUPPORTED);
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err)
+		return err;
+	/* test 8 or 12 phys out */
+	snd_assert((rmh.stat[0] & MASK_FIRST_FIELD) == mgr->playback_chips*2,
+		   return -EINVAL);
+	/* test 8 or 2 phys in */
+	snd_assert(((rmh.stat[0] >> (2*FIELD_SIZE)) & MASK_FIRST_FIELD) ==
+		   mgr->capture_chips * 2, return -EINVAL);
+	/* test max nb substream per board */
+	snd_assert((rmh.stat[1] & 0x5F) >= card_streams, return -EINVAL);
+	/* test max nb substream per pipe */
+	snd_assert(((rmh.stat[1]>>7)&0x5F) >= PCXHR_PLAYBACK_STREAMS, return -EINVAL);
+
+	pcxhr_init_rmh(&rmh, CMD_VERSION);
+	/* firmware num for DSP */
+	rmh.cmd[0] |= mgr->firmware_num;
+	/* transfer granularity in samples (should be multiple of 48) */
+	rmh.cmd[1] = (1<<23) + PCXHR_GRANULARITY;
+	rmh.cmd_len = 2;
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err)
+		return err;
+	snd_printdd("PCXHR DSP version is %d.%d.%d\n",
+		    (rmh.stat[0]>>16)&0xff, (rmh.stat[0]>>8)&0xff, rmh.stat[0]&0xff);
+	mgr->dsp_version = rmh.stat[0];
+
+	/* get options */
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
+	rmh.cmd[0] |= IO_NUM_REG_STATUS;
+	rmh.cmd[1]  = REG_STATUS_OPTIONS;
+	rmh.cmd_len = 2;
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err)
+		return err;
+
+	if ((rmh.stat[1] & REG_STATUS_OPT_DAUGHTER_MASK) == REG_STATUS_OPT_ANALOG_BOARD)
+		mgr->board_has_analog = 1;	/* analog addon board available */
+	else
+		/* analog addon board not available -> no support for instance */
+		return -EINVAL;	
+
+	/* unmute inputs */
+	err = pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS,
+					  REG_CONT_UNMUTE_INPUTS, NULL);
+	if (err)
+		return err;
+	/* unmute outputs */
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ); /* a write to IO_NUM_REG_MUTE_OUT mutes! */
+	rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
+	err = pcxhr_send_msg(mgr, &rmh);
+	return err;
+}
+
+void pcxhr_reset_board(struct pcxhr_mgr *mgr)
+{
+	struct pcxhr_rmh rmh;
+
+	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
+		/* mute outputs */
+		/* a read to IO_NUM_REG_MUTE_OUT register unmutes! */
+		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
+		pcxhr_send_msg(mgr, &rmh);
+		/* mute inputs */
+		pcxhr_write_io_num_reg_cont(mgr, REG_CONT_UNMUTE_INPUTS, 0, NULL);
+	}
+	/* reset pcxhr dsp */
+	if (mgr->dsp_loaded & ( 1 << PCXHR_FIRMWARE_DSP_EPRM_INDEX))
+		pcxhr_reset_dsp(mgr);
+	/* reset second xilinx */
+	if (mgr->dsp_loaded & ( 1 << PCXHR_FIRMWARE_XLX_COM_INDEX))
+		pcxhr_reset_xilinx_com(mgr);
+	return;
+}
+
+
+/*
+ *  allocate a playback/capture pipe (pcmp0/pcmc0)
+ */
+static int pcxhr_dsp_allocate_pipe( struct pcxhr_mgr *mgr, struct pcxhr_pipe *pipe,
+				    int is_capture, int pin)
+{
+	int stream_count, audio_count;
+	int err;
+	struct pcxhr_rmh rmh;
+
+	if (is_capture) {
+		stream_count = 1;
+		if (mgr->mono_capture)
+			audio_count = 1;
+		else
+			audio_count = 2;
+	} else {
+		stream_count = PCXHR_PLAYBACK_STREAMS;
+		audio_count = 2;	/* always stereo */
+	}
+	snd_printdd("snd_add_ref_pipe pin(%d) pcm%c0\n", pin, is_capture ? 'c' : 'p');
+	pipe->is_capture = is_capture;
+	pipe->first_audio = pin;
+	/* define pipe (P_PCM_ONLY_MASK (0x020000) is not necessary) */
+	pcxhr_init_rmh(&rmh, CMD_RES_PIPE);
+	pcxhr_set_pipe_cmd_params(&rmh, is_capture, pin, audio_count, stream_count); 
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err < 0) {
+		snd_printk(KERN_ERR "error pipe allocation (CMD_RES_PIPE) err=%x!\n", err );
+		return err;
+	}
+	pipe->status = PCXHR_PIPE_DEFINED;
+
+	return 0;
+}
+
+/*
+ *  free playback/capture pipe (pcmp0/pcmc0)
+ */
+#if 0
+static int pcxhr_dsp_free_pipe( struct pcxhr_mgr *mgr, struct pcxhr_pipe *pipe)
+{
+	struct pcxhr_rmh rmh;
+	int capture_mask = 0;
+	int playback_mask = 0;
+	int err = 0;
+
+	if (pipe->is_capture)
+		capture_mask  = (1 << pipe->first_audio);
+	else
+		playback_mask = (1 << pipe->first_audio);
+
+	/* stop one pipe */
+	err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
+	if (err < 0)
+		snd_printk(KERN_ERR "error stopping pipe!\n");
+	/* release the pipe */
+	pcxhr_init_rmh(&rmh, CMD_FREE_PIPE);
+	pcxhr_set_pipe_cmd_params(&rmh, pipe->is_capture, pipe->first_audio, 0, 0);
+	err = pcxhr_send_msg(mgr, &rmh);
+	if (err < 0)
+		snd_printk(KERN_ERR "error pipe release (CMD_FREE_PIPE) err(%x)\n", err);
+	pipe->status = PCXHR_PIPE_UNDEFINED;
+	return err;
+}
+#endif
+
+
+static int pcxhr_config_pipes(struct pcxhr_mgr *mgr)
+{
+	int err, i, j;
+	struct snd_pcxhr *chip;
+	struct pcxhr_pipe *pipe;
+
+	/* allocate the pipes on the dsp */
+	for (i = 0; i < mgr->num_cards; i++) {
+		chip = mgr->chip[i];
+		if (chip->nb_streams_play) {
+			pipe = &chip->playback_pipe;
+			err = pcxhr_dsp_allocate_pipe( mgr, pipe, 0, i*2);
+			if (err)
+				return err;
+			for(j = 0; j < chip->nb_streams_play; j++)
+				chip->playback_stream[j].pipe = pipe;
+		}
+		for (j = 0; j < chip->nb_streams_capt; j++) {
+			pipe = &chip->capture_pipe[j];
+			err = pcxhr_dsp_allocate_pipe(mgr, pipe, 1, i*2 + j);
+			if (err)
+				return err;
+			chip->capture_stream[j].pipe = pipe;
+		}
+	}
+	return 0;
+}
+
+static int pcxhr_start_pipes(struct pcxhr_mgr *mgr)
+{
+	int i, j;
+	struct snd_pcxhr *chip;
+	int playback_mask = 0;
+	int capture_mask = 0;
+
+	/* start all the pipes on the dsp */
+	for (i = 0; i < mgr->num_cards; i++) {
+		chip = mgr->chip[i];
+		if (chip->nb_streams_play)
+			playback_mask |= (1 << chip->playback_pipe.first_audio);
+		for (j = 0; j < chip->nb_streams_capt; j++)
+			capture_mask |= (1 << chip->capture_pipe[j].first_audio);
+	}
+	return pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
+}
+
+
+static int pcxhr_dsp_load(struct pcxhr_mgr *mgr, int index, const struct firmware *dsp)
+{
+	int err, card_index;
+
+	snd_printdd("loading dsp [%d] size = %Zd\n", index, dsp->size);
+
+	switch (index) {
+	case PCXHR_FIRMWARE_XLX_INT_INDEX:
+		pcxhr_reset_xilinx_com(mgr);
+		return pcxhr_load_xilinx_binary(mgr, dsp, 0);
+
+	case PCXHR_FIRMWARE_XLX_COM_INDEX:
+		pcxhr_reset_xilinx_com(mgr);
+		return pcxhr_load_xilinx_binary(mgr, dsp, 1);
+
+	case PCXHR_FIRMWARE_DSP_EPRM_INDEX:
+		pcxhr_reset_dsp(mgr);
+		return pcxhr_load_eeprom_binary(mgr, dsp);
+
+	case PCXHR_FIRMWARE_DSP_BOOT_INDEX:
+		return pcxhr_load_boot_binary(mgr, dsp);
+
+	case PCXHR_FIRMWARE_DSP_MAIN_INDEX:
+		err = pcxhr_load_dsp_binary(mgr, dsp);
+		if (err)
+			return err;
+		break;	/* continue with first init */
+	default:
+		snd_printk(KERN_ERR "wrong file index\n");
+		return -EFAULT;
+	} /* end of switch file index*/
+
+	/* first communication with embedded */
+	err = pcxhr_init_board(mgr);
+        if (err < 0) {
+		snd_printk(KERN_ERR "pcxhr could not be set up\n");
+		return err;
+	}
+	err = pcxhr_config_pipes(mgr);
+        if (err < 0) {
+		snd_printk(KERN_ERR "pcxhr pipes could not be set up\n");
+		return err;
+	}
+       	/* create devices and mixer in accordance with HW options*/
+        for (card_index = 0; card_index < mgr->num_cards; card_index++) {
+		struct snd_pcxhr *chip = mgr->chip[card_index];
+
+		if ((err = pcxhr_create_pcm(chip)) < 0)
+			return err;
+
+		if (card_index == 0) {
+			if ((err = pcxhr_create_mixer(chip->mgr)) < 0)
+				return err;
+		}
+		if ((err = snd_card_register(chip->card)) < 0)
+			return err;
+	}
+	err = pcxhr_start_pipes(mgr);
+        if (err < 0) {
+		snd_printk(KERN_ERR "pcxhr pipes could not be started\n");
+		return err;
+	}
+	snd_printdd("pcxhr firmware downloaded and successfully set up\n");
+
+	return 0;
+}
+
+/*
+ * fw loader entry
+ */
+#ifdef SND_PCXHR_FW_LOADER
+
+int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
+{
+	static char *fw_files[5] = {
+		"xi_1_882.dat",
+		"xc_1_882.dat",
+		"e321_512.e56",
+		"b321_512.b56",
+		"d321_512.d56"
+	};
+	char path[32];
+
+	const struct firmware *fw_entry;
+	int i, err;
+
+	for (i = 0; i < ARRAY_SIZE(fw_files); i++) {
+		sprintf(path, "pcxhr/%s", fw_files[i]);
+		if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
+			snd_printk(KERN_ERR "pcxhr: can't load firmware %s\n", path);
+			return -ENOENT;
+		}
+		/* fake hwdep dsp record */
+		err = pcxhr_dsp_load(mgr, i, fw_entry);
+		release_firmware(fw_entry);
+		if (err < 0)
+			return err;
+		mgr->dsp_loaded |= 1 << i;
+	}
+	return 0;
+}
+
+#else /* old style firmware loading */
+
+/* pcxhr hwdep interface id string */
+#define PCXHR_HWDEP_ID       "pcxhr loader"
+
+
+static int pcxhr_hwdep_dsp_status(struct snd_hwdep *hw,
+				  struct snd_hwdep_dsp_status *info)
+{
+	strcpy(info->id, "pcxhr");
+        info->num_dsps = PCXHR_FIRMWARE_FILES_MAX_INDEX;
+
+	if (hw->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))
+		info->chip_ready = 1;
+
+	info->version = PCXHR_DRIVER_VERSION;
+	return 0;
+}
+
+static int pcxhr_hwdep_dsp_load(struct snd_hwdep *hw,
+				struct snd_hwdep_dsp_image *dsp)
+{
+	struct pcxhr_mgr *mgr = hw->private_data;
+	int err;
+	struct firmware fw;
+
+	fw.size = dsp->length;
+	fw.data = vmalloc(fw.size);
+	if (! fw.data) {
+		snd_printk(KERN_ERR "pcxhr: cannot allocate dsp image (%d bytes)\n",
+			   fw.size);
+		return -ENOMEM;
+	}
+	if (copy_from_user(fw.data, dsp->image, dsp->length)) {
+		vfree(fw.data);
+		return -EFAULT;
+	}
+	err = pcxhr_dsp_load(mgr, dsp->index, &fw);
+	vfree(fw.data);
+	if (err < 0)
+		return err;
+	mgr->dsp_loaded |= 1 << dsp->index;
+	return 0;
+}
+
+static int pcxhr_hwdep_open(struct snd_hwdep *hw, struct file *file)
+{
+	return 0;
+}
+
+static int pcxhr_hwdep_release(struct snd_hwdep *hw, struct file *file)
+{
+	return 0;
+}
+
+int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
+{
+	int err;
+	struct snd_hwdep *hw;
+
+	/* only create hwdep interface for first cardX (see "index" module parameter)*/
+	if ((err = snd_hwdep_new(mgr->chip[0]->card, PCXHR_HWDEP_ID, 0, &hw)) < 0)
+		return err;
+
+	hw->iface = SNDRV_HWDEP_IFACE_PCXHR;
+	hw->private_data = mgr;
+	hw->ops.open = pcxhr_hwdep_open;
+	hw->ops.release = pcxhr_hwdep_release;
+	hw->ops.dsp_status = pcxhr_hwdep_dsp_status;
+	hw->ops.dsp_load = pcxhr_hwdep_dsp_load;
+	hw->exclusive = 1;
+	mgr->dsp_loaded = 0;
+	sprintf(hw->name, PCXHR_HWDEP_ID);
+
+	if ((err = snd_card_register(mgr->chip[0]->card)) < 0)
+		return err;
+	return 0;
+}
+
+#endif /* SND_PCXHR_FW_LOADER */

sound/pci/pcxhr/pcxhr_hwdep.h

+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * definitions and makros for basic card access
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef __SOUND_PCXHR_HWDEP_H
+#define __SOUND_PCXHR_HWDEP_H
+
+
+/* firmware status codes  */
+#define PCXHR_FIRMWARE_XLX_INT_INDEX   0
+#define PCXHR_FIRMWARE_XLX_COM_INDEX   1
+#define PCXHR_FIRMWARE_DSP_EPRM_INDEX  2
+#define PCXHR_FIRMWARE_DSP_BOOT_INDEX  3
+#define PCXHR_FIRMWARE_DSP_MAIN_INDEX  4
+#define PCXHR_FIRMWARE_FILES_MAX_INDEX 5
+
+
+/* exported */
+int  pcxhr_setup_firmware(struct pcxhr_mgr *mgr);
+void pcxhr_reset_board(struct pcxhr_mgr *mgr);
+
+#endif /* __SOUND_PCXHR_HWDEP_H */

sound/pci/pcxhr/pcxhr_mixer.c

+#define __NO_VERSION__
+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * mixer callbacks
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <sound/driver.h>
+#include <linux/time.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <sound/core.h>
+#include "pcxhr.h"
+#include "pcxhr_hwdep.h"
+#include "pcxhr_core.h"
+#include <sound/control.h>
+#include <sound/asoundef.h>
+#include "pcxhr_mixer.h"
+
+
+#define PCXHR_ANALOG_CAPTURE_LEVEL_MIN   0	/* -96.0 dB */
+#define PCXHR_ANALOG_CAPTURE_LEVEL_MAX   255	/* +31.5 dB */
+#define PCXHR_ANALOG_CAPTURE_ZERO_LEVEL  224	/* +16.0 dB ( +31.5 dB - fix level +15.5 dB ) */
+
+#define PCXHR_ANALOG_PLAYBACK_LEVEL_MIN  0	/* -128.0 dB */
+#define PCXHR_ANALOG_PLAYBACK_LEVEL_MAX  128	/*    0.0 dB */
+#define PCXHR_ANALOG_PLAYBACK_ZERO_LEVEL 104	/*  -24.0 dB ( 0.0 dB - fix level +24.0 dB ) */
+
+static int pcxhr_update_analog_audio_level(struct snd_pcxhr *chip, int is_capture, int channel)
+{
+	int err, vol;
+	struct pcxhr_rmh rmh;
+
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+	if (is_capture) {
+		rmh.cmd[0] |= IO_NUM_REG_IN_ANA_LEVEL;
+		rmh.cmd[2] = chip->analog_capture_volume[channel];
+	} else {
+		rmh.cmd[0] |= IO_NUM_REG_OUT_ANA_LEVEL;
+		if (chip->analog_playback_active[channel])
+			vol = chip->analog_playback_volume[channel];
+		else
+			vol = PCXHR_ANALOG_PLAYBACK_LEVEL_MIN;
+		rmh.cmd[2] = PCXHR_ANALOG_PLAYBACK_LEVEL_MAX - vol;	/* playback analog levels are inversed */
+	}
+	rmh.cmd[1]  = 1 << ((2 * chip->chip_idx) + channel);	/* audio mask */
+	rmh.cmd_len = 3;
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err < 0) {
+		snd_printk(KERN_DEBUG "error update_analog_audio_level card(%d) "
+			   "is_capture(%d) err(%x)\n", chip->chip_idx, is_capture, err);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/*
+ * analog level control
+ */
+static int pcxhr_analog_vol_info(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	if (kcontrol->private_value == 0) {	/* playback */
+		uinfo->value.integer.min = PCXHR_ANALOG_PLAYBACK_LEVEL_MIN;	/* -128 dB */
+		uinfo->value.integer.max = PCXHR_ANALOG_PLAYBACK_LEVEL_MAX;	/* 0 dB */
+	} else {				/* capture */
+		uinfo->value.integer.min = PCXHR_ANALOG_CAPTURE_LEVEL_MIN;	/* -96 dB */
+		uinfo->value.integer.max = PCXHR_ANALOG_CAPTURE_LEVEL_MAX;	/* 31.5 dB */
+	}
+	return 0;
+}
+
+static int pcxhr_analog_vol_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	down(&chip->mgr->mixer_mutex);
+	if (kcontrol->private_value == 0) {	/* playback */
+		ucontrol->value.integer.value[0] = chip->analog_playback_volume[0];
+		ucontrol->value.integer.value[1] = chip->analog_playback_volume[1];
+	} else {				/* capture */
+		ucontrol->value.integer.value[0] = chip->analog_capture_volume[0];
+		ucontrol->value.integer.value[1] = chip->analog_capture_volume[1];
+	}
+	up(&chip->mgr->mixer_mutex);
+	return 0;
+}
+
+static int pcxhr_analog_vol_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int changed = 0;
+	int is_capture, i;
+
+	down(&chip->mgr->mixer_mutex);
+	is_capture = (kcontrol->private_value != 0);
+	for (i = 0; i < 2; i++) {
+		int  new_volume = ucontrol->value.integer.value[i];
+		int* stored_volume = is_capture ? &chip->analog_capture_volume[i] :
+			&chip->analog_playback_volume[i];
+		if (*stored_volume != new_volume) {
+			*stored_volume = new_volume;
+			changed = 1;
+			pcxhr_update_analog_audio_level(chip, is_capture, i);
+		}
+	}
+	up(&chip->mgr->mixer_mutex);
+	return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_analog_level = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	/* name will be filled later */
+	.info =		pcxhr_analog_vol_info,
+	.get =		pcxhr_analog_vol_get,
+	.put =		pcxhr_analog_vol_put,
+};
+
+/* shared */
+static int pcxhr_sw_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int pcxhr_audio_sw_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+
+	down(&chip->mgr->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->analog_playback_active[0];
+	ucontrol->value.integer.value[1] = chip->analog_playback_active[1];
+	up(&chip->mgr->mixer_mutex);
+	return 0;
+}
+
+static int pcxhr_audio_sw_put(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int i, changed = 0;
+	down(&chip->mgr->mixer_mutex);
+	for(i = 0; i < 2; i++) {
+		if (chip->analog_playback_active[i] != ucontrol->value.integer.value[i]) {
+			chip->analog_playback_active[i] = ucontrol->value.integer.value[i];
+			changed = 1;
+			pcxhr_update_analog_audio_level(chip, 0, i);	/* update playback levels */
+		}
+	}
+	up(&chip->mgr->mixer_mutex);
+	return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_output_switch = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Master Playback Switch",
+	.info =		pcxhr_sw_info,		/* shared */
+	.get =		pcxhr_audio_sw_get,
+	.put =		pcxhr_audio_sw_put
+};
+
+
+#define PCXHR_DIGITAL_LEVEL_MIN		0x000	/* -110 dB */
+#define PCXHR_DIGITAL_LEVEL_MAX		0x1ff	/* +18 dB */
+#define PCXHR_DIGITAL_ZERO_LEVEL	0x1b7	/*  0 dB */
+
+
+#define MORE_THAN_ONE_STREAM_LEVEL	0x000001
+#define VALID_STREAM_PAN_LEVEL_MASK	0x800000
+#define VALID_STREAM_LEVEL_MASK		0x400000
+#define VALID_STREAM_LEVEL_1_MASK	0x200000
+#define VALID_STREAM_LEVEL_2_MASK	0x100000
+
+static int pcxhr_update_playback_stream_level(struct snd_pcxhr* chip, int idx)
+{
+	int err;
+	struct pcxhr_rmh rmh;
+	struct pcxhr_pipe *pipe = &chip->playback_pipe;
+	int left, right;
+
+	if (chip->digital_playback_active[idx][0])
+		left = chip->digital_playback_volume[idx][0];
+	else
+		left = PCXHR_DIGITAL_LEVEL_MIN;
+	if (chip->digital_playback_active[idx][1])
+		right = chip->digital_playback_volume[idx][1];
+	else
+		right = PCXHR_DIGITAL_LEVEL_MIN;
+
+	pcxhr_init_rmh(&rmh, CMD_STREAM_OUT_LEVEL_ADJUST);
+	/* add pipe and stream mask */
+	pcxhr_set_pipe_cmd_params(&rmh, 0, pipe->first_audio, 0, 1<<idx);
+	/* volume left->left / right->right panoramic level */
+	rmh.cmd[0] |= MORE_THAN_ONE_STREAM_LEVEL;
+	rmh.cmd[2]  = VALID_STREAM_PAN_LEVEL_MASK | VALID_STREAM_LEVEL_1_MASK;
+	rmh.cmd[2] |= (left << 10);
+	rmh.cmd[3]  = VALID_STREAM_PAN_LEVEL_MASK | VALID_STREAM_LEVEL_2_MASK;
+	rmh.cmd[3] |= right;
+	rmh.cmd_len = 4;
+
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err < 0) {
+		snd_printk(KERN_DEBUG "error update_playback_stream_level "
+			   "card(%d) err(%x)\n", chip->chip_idx, err);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+#define AUDIO_IO_HAS_MUTE_LEVEL		0x400000
+#define AUDIO_IO_HAS_MUTE_MONITOR_1	0x200000
+#define VALID_AUDIO_IO_DIGITAL_LEVEL	0x000001
+#define VALID_AUDIO_IO_MONITOR_LEVEL	0x000002
+#define VALID_AUDIO_IO_MUTE_LEVEL	0x000004
+#define VALID_AUDIO_IO_MUTE_MONITOR_1	0x000008
+
+static int pcxhr_update_audio_pipe_level(struct snd_pcxhr* chip, int capture, int channel)
+{
+	int err;
+	struct pcxhr_rmh rmh;
+	struct pcxhr_pipe *pipe;
+
+	if (capture)
+		pipe = &chip->capture_pipe[0];
+	else
+		pipe = &chip->playback_pipe;
+
+	pcxhr_init_rmh(&rmh, CMD_AUDIO_LEVEL_ADJUST);
+	/* add channel mask */
+	pcxhr_set_pipe_cmd_params(&rmh, capture, 0, 0, 1 << (channel + pipe->first_audio));
+	/* TODO : if mask (3 << pipe->first_audio) is used, left and right channel
+	 * will be programmed to the same params
+	 */
+	if (capture) {
+		rmh.cmd[0] |= VALID_AUDIO_IO_DIGITAL_LEVEL;
+		/* VALID_AUDIO_IO_MUTE_LEVEL not yet handled (capture pipe level) */
+		rmh.cmd[2] = chip->digital_capture_volume[channel];
+	} else {
+		rmh.cmd[0] |= VALID_AUDIO_IO_MONITOR_LEVEL | VALID_AUDIO_IO_MUTE_MONITOR_1;
+		/* VALID_AUDIO_IO_DIGITAL_LEVEL and VALID_AUDIO_IO_MUTE_LEVEL not yet
+		 * handled (playback pipe level)
+		 */
+		rmh.cmd[2] = chip->monitoring_volume[channel] << 10;
+		if (chip->monitoring_active[channel] == 0)
+			rmh.cmd[2] |= AUDIO_IO_HAS_MUTE_MONITOR_1;
+	}
+	rmh.cmd_len = 3;
+
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if(err<0) {
+		snd_printk(KERN_DEBUG "error update_audio_level card(%d) err(%x)\n",
+			   chip->chip_idx, err);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+
+/* shared */
+static int pcxhr_digital_vol_info(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = PCXHR_DIGITAL_LEVEL_MIN;   /* -109.5 dB */
+	uinfo->value.integer.max = PCXHR_DIGITAL_LEVEL_MAX;   /*   18.0 dB */
+	return 0;
+}
+
+
+static int pcxhr_pcm_vol_get(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);		/* index */
+	int *stored_volume;
+	int is_capture = kcontrol->private_value;
+
+	down(&chip->mgr->mixer_mutex);
+	if (is_capture)
+		stored_volume = chip->digital_capture_volume;		/* digital capture */
+	else
+		stored_volume = chip->digital_playback_volume[idx];	/* digital playback */
+	ucontrol->value.integer.value[0] = stored_volume[0];
+	ucontrol->value.integer.value[1] = stored_volume[1];
+	up(&chip->mgr->mixer_mutex);
+	return 0;
+}
+
+static int pcxhr_pcm_vol_put(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);		/* index */
+	int changed = 0;
+	int is_capture = kcontrol->private_value;
+	int *stored_volume;
+	int i;
+
+	down(&chip->mgr->mixer_mutex);
+	if (is_capture)
+		stored_volume = chip->digital_capture_volume;		/* digital capture */
+	else
+		stored_volume = chip->digital_playback_volume[idx];	/* digital playback */
+	for (i = 0; i < 2; i++) {
+		if (stored_volume[i] != ucontrol->value.integer.value[i]) {
+			stored_volume[i] = ucontrol->value.integer.value[i];
+			changed = 1;
+			if (is_capture)	/* update capture volume */
+				pcxhr_update_audio_pipe_level(chip, 1, i);
+		}
+	}
+	if (! is_capture && changed)
+		pcxhr_update_playback_stream_level(chip, idx);	/* update playback volume */
+	up(&chip->mgr->mixer_mutex);
+	return changed;
+}
+
+static struct snd_kcontrol_new snd_pcxhr_pcm_vol =
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	/* name will be filled later */
+	/* count will be filled later */
+	.info =		pcxhr_digital_vol_info,		/* shared */
+	.get =		pcxhr_pcm_vol_get,
+	.put =		pcxhr_pcm_vol_put,
+};
+
+
+static int pcxhr_pcm_sw_get(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
+
+	down(&chip->mgr->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->digital_playback_active[idx][0];
+	ucontrol->value.integer.value[1] = chip->digital_playback_active[idx][1];
+	up(&chip->mgr->mixer_mutex);
+	return 0;
+}
+
+static int pcxhr_pcm_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int changed = 0;
+	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
+	int i, j;
+
+	down(&chip->mgr->mixer_mutex);
+	j = idx;
+	for (i = 0; i < 2; i++) {
+		if (chip->digital_playback_active[j][i] != ucontrol->value.integer.value[i]) {
+			chip->digital_playback_active[j][i] = ucontrol->value.integer.value[i];
+			changed = 1;
+		}
+	}
+	if (changed)
+		pcxhr_update_playback_stream_level(chip, idx);
+	up(&chip->mgr->mixer_mutex);
+	return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_pcm_switch = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"PCM Playback Switch",
+	.count =	PCXHR_PLAYBACK_STREAMS,
+	.info =		pcxhr_sw_info,		/* shared */
+	.get =		pcxhr_pcm_sw_get,
+	.put =		pcxhr_pcm_sw_put
+};
+
+
+/*
+ * monitoring level control
+ */
+
+static int pcxhr_monitor_vol_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	down(&chip->mgr->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->monitoring_volume[0];
+	ucontrol->value.integer.value[1] = chip->monitoring_volume[1];
+	up(&chip->mgr->mixer_mutex);
+	return 0;
+}
+
+static int pcxhr_monitor_vol_put(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int changed = 0;
+	int i;
+
+	down(&chip->mgr->mixer_mutex);
+	for (i = 0; i < 2; i++) {
+		if (chip->monitoring_volume[i] != ucontrol->value.integer.value[i]) {
+			chip->monitoring_volume[i] = ucontrol->value.integer.value[i];
+			if(chip->monitoring_active[i])	/* do only when monitoring is unmuted */
+				/* update monitoring volume and mute */
+				pcxhr_update_audio_pipe_level(chip, 0, i);
+			changed = 1;
+		}
+	}
+	up(&chip->mgr->mixer_mutex);
+	return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_monitor_vol = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "Monitoring Volume",
+	.info =		pcxhr_digital_vol_info,		/* shared */
+	.get =		pcxhr_monitor_vol_get,
+	.put =		pcxhr_monitor_vol_put,
+};
+
+/*
+ * monitoring switch control
+ */
+
+static int pcxhr_monitor_sw_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	down(&chip->mgr->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->monitoring_active[0];
+	ucontrol->value.integer.value[1] = chip->monitoring_active[1];
+	up(&chip->mgr->mixer_mutex);
+	return 0;
+}
+
+static int pcxhr_monitor_sw_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int changed = 0;
+	int i;
+
+	down(&chip->mgr->mixer_mutex);
+	for (i = 0; i < 2; i++) {
+		if (chip->monitoring_active[i] != ucontrol->value.integer.value[i]) {
+			chip->monitoring_active[i] = ucontrol->value.integer.value[i];
+			changed |= (1<<i); /* mask 0x01 and 0x02 */
+		}
+	}
+	if(changed & 0x01)
+		/* update left monitoring volume and mute */
+		pcxhr_update_audio_pipe_level(chip, 0, 0);
+	if(changed & 0x02)
+		/* update right monitoring volume and mute */
+		pcxhr_update_audio_pipe_level(chip, 0, 1);
+
+	up(&chip->mgr->mixer_mutex);
+	return (changed != 0);
+}
+
+static struct snd_kcontrol_new pcxhr_control_monitor_sw = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "Monitoring Switch",
+	.info =         pcxhr_sw_info,		/* shared */
+	.get =          pcxhr_monitor_sw_get,
+	.put =          pcxhr_monitor_sw_put
+};
+
+
+
+/*
+ * audio source select
+ */
+#define PCXHR_SOURCE_AUDIO01_UER	0x000100
+#define PCXHR_SOURCE_AUDIO01_SYNC	0x000200
+#define PCXHR_SOURCE_AUDIO23_UER	0x000400
+#define PCXHR_SOURCE_AUDIO45_UER	0x001000
+#define PCXHR_SOURCE_AUDIO67_UER	0x040000
+
+static int pcxhr_set_audio_source(struct snd_pcxhr* chip)
+{
+	struct pcxhr_rmh rmh;
+	unsigned int mask, reg;
+	unsigned int codec;
+	int err, use_src, changed;
+
+	switch (chip->chip_idx) {
+	case 0 : mask = PCXHR_SOURCE_AUDIO01_UER; codec = CS8420_01_CS; break;
+	case 1 : mask = PCXHR_SOURCE_AUDIO23_UER; codec = CS8420_23_CS; break;
+	case 2 : mask = PCXHR_SOURCE_AUDIO45_UER; codec = CS8420_45_CS; break;
+	case 3 : mask = PCXHR_SOURCE_AUDIO67_UER; codec = CS8420_67_CS; break;
+	default: return -EINVAL;
+	}
+	reg = 0;	/* audio source from analog plug */
+	use_src = 0;	/* do not activate codec SRC */
+
+	if (chip->audio_capture_source != 0) {
+		reg = mask;	/* audio source from digital plug */
+		if (chip->audio_capture_source == 2)
+			use_src = 1;
+	}
+	/* set the input source */
+	pcxhr_write_io_num_reg_cont(chip->mgr, mask, reg, &changed);
+	/* resync them (otherwise channel inversion possible) */
+	if (changed) {
+		pcxhr_init_rmh(&rmh, CMD_RESYNC_AUDIO_INPUTS);
+		rmh.cmd[0] |= (1 << chip->chip_idx);
+		err = pcxhr_send_msg(chip->mgr, &rmh);
+		if (err)
+			return err;
+	}
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);	/* set codec SRC on off */
+	rmh.cmd_len = 3;
+	rmh.cmd[0] |= IO_NUM_UER_CHIP_REG;
+	rmh.cmd[1] = codec;
+	rmh.cmd[2] = (CS8420_DATA_FLOW_CTL & CHIP_SIG_AND_MAP_SPI) | (use_src ? 0x41 : 0x54);
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if(err)
+		return err;
+	rmh.cmd[2] = (CS8420_CLOCK_SRC_CTL & CHIP_SIG_AND_MAP_SPI) | (use_src ? 0x41 : 0x49);
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	return err;
+}
+
+static int pcxhr_audio_src_info(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	static char *texts[3] = {"Analog", "Digital", "Digi+SRC"};
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 3;
+	if (uinfo->value.enumerated.item > 2)
+		uinfo->value.enumerated.item = 2;
+	strcpy(uinfo->value.enumerated.name,
+		texts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int pcxhr_audio_src_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.enumerated.item[0] = chip->audio_capture_source;
+	return 0;
+}
+
+static int pcxhr_audio_src_put(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int ret = 0;
+
+	down(&chip->mgr->mixer_mutex);
+	if (chip->audio_capture_source != ucontrol->value.enumerated.item[0]) {
+		chip->audio_capture_source = ucontrol->value.enumerated.item[0];
+		pcxhr_set_audio_source(chip);
+		ret = 1;
+	}
+	up(&chip->mgr->mixer_mutex);
+	return ret;
+}
+
+static struct snd_kcontrol_new pcxhr_control_audio_src = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Capture Source",
+	.info =		pcxhr_audio_src_info,
+	.get =		pcxhr_audio_src_get,
+	.put =		pcxhr_audio_src_put,
+};
+
+
+/*
+ * clock type selection
+ * enum pcxhr_clock_type {
+ *		PCXHR_CLOCK_TYPE_INTERNAL = 0,
+ *		PCXHR_CLOCK_TYPE_WORD_CLOCK,
+ *		PCXHR_CLOCK_TYPE_AES_SYNC,
+ *		PCXHR_CLOCK_TYPE_AES_1,
+ *		PCXHR_CLOCK_TYPE_AES_2,
+ *		PCXHR_CLOCK_TYPE_AES_3,
+ *		PCXHR_CLOCK_TYPE_AES_4,
+ *	};
+ */
+
+static int pcxhr_clock_type_info(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_info *uinfo)
+{
+	static char *texts[7] = {
+		"Internal", "WordClock", "AES Sync", "AES 1", "AES 2", "AES 3", "AES 4"
+	};
+	struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+	int clock_items = 3 + mgr->capture_chips;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = clock_items;
+	if (uinfo->value.enumerated.item >= clock_items)
+		uinfo->value.enumerated.item = clock_items-1;
+	strcpy(uinfo->value.enumerated.name,
+		texts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int pcxhr_clock_type_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.enumerated.item[0] = mgr->use_clock_type;
+	return 0;
+}
+
+static int pcxhr_clock_type_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+	int rate, ret = 0;
+
+	down(&mgr->mixer_mutex);
+	if (mgr->use_clock_type != ucontrol->value.enumerated.item[0]) {
+		down(&mgr->setup_mutex);
+		mgr->use_clock_type = ucontrol->value.enumerated.item[0];
+		if (mgr->use_clock_type)
+			pcxhr_get_external_clock(mgr, mgr->use_clock_type, &rate);
+		else
+			rate = mgr->sample_rate;
+		if (rate) {
+			pcxhr_set_clock(mgr, rate);
+			if (mgr->sample_rate)
+				mgr->sample_rate = rate;
+		}
+		up(&mgr->setup_mutex);
+		ret = 1;	/* return 1 even if the set was not done. ok ? */
+	}
+	up(&mgr->mixer_mutex);
+	return ret;
+}
+
+static struct snd_kcontrol_new pcxhr_control_clock_type = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Clock Mode",
+	.info =		pcxhr_clock_type_info,
+	.get =		pcxhr_clock_type_get,
+	.put =		pcxhr_clock_type_put,
+};
+
+/*
+ * clock rate control
+ * specific control that scans the sample rates on the external plugs
+ */
+static int pcxhr_clock_rate_info(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_info *uinfo)
+{
+	struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 3 + mgr->capture_chips;
+	uinfo->value.integer.min = 0;		/* clock not present */
+	uinfo->value.integer.max = 192000;	/* max sample rate 192 kHz */
+	return 0;
+}
+
+static int pcxhr_clock_rate_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct pcxhr_mgr *mgr = snd_kcontrol_chip(kcontrol);
+	int i, err, rate;
+
+	down(&mgr->mixer_mutex);
+	for(i = 0; i < 3 + mgr->capture_chips; i++) {
+		if (i == PCXHR_CLOCK_TYPE_INTERNAL)
+			rate = mgr->sample_rate_real;
+		else {
+			err = pcxhr_get_external_clock(mgr, i, &rate);
+			if (err)
+				break;
+		}
+		ucontrol->value.integer.value[i] = rate;
+	}
+	up(&mgr->mixer_mutex);
+	return 0;
+}
+
+static struct snd_kcontrol_new pcxhr_control_clock_rate = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =	SNDRV_CTL_ELEM_IFACE_CARD,
+	.name =		"Clock Rates",
+	.info =		pcxhr_clock_rate_info,
+	.get =		pcxhr_clock_rate_get,
+};
+
+/*
+ * IEC958 status bits
+ */
+static int pcxhr_iec958_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int pcxhr_iec958_capture_byte(struct snd_pcxhr *chip, int aes_idx, unsigned char* aes_bits)
+{
+	int i, err;
+	unsigned char temp;
+	struct pcxhr_rmh rmh;
+
+	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
+	rmh.cmd[0] |= IO_NUM_UER_CHIP_REG;
+	switch (chip->chip_idx) {
+	case 0:	rmh.cmd[1] = CS8420_01_CS; break;	/* use CS8416_01_CS for AES SYNC plug */
+	case 1:	rmh.cmd[1] = CS8420_23_CS; break;
+	case 2:	rmh.cmd[1] = CS8420_45_CS; break;
+	case 3:	rmh.cmd[1] = CS8420_67_CS; break;
+	default: return -EINVAL;
+	}
+	switch (aes_idx) {
+	case 0:	rmh.cmd[2] = CS8420_CSB0; break;	/* use CS8416_CSBx for AES SYNC plug */
+	case 1:	rmh.cmd[2] = CS8420_CSB1; break;
+	case 2:	rmh.cmd[2] = CS8420_CSB2; break;
+	case 3:	rmh.cmd[2] = CS8420_CSB3; break;
+	case 4:	rmh.cmd[2] = CS8420_CSB4; break;
+	default: return -EINVAL;
+	}
+	rmh.cmd[1] &= 0x0fffff;			/* size and code the chip id for the fpga */
+	rmh.cmd[2] &= CHIP_SIG_AND_MAP_SPI;	/* chip signature + map for spi read */
+	rmh.cmd_len = 3;
+	err = pcxhr_send_msg(chip->mgr, &rmh);
+	if (err)
+		return err;
+	temp = 0;
+	for (i = 0; i < 8; i++) {
+		/* attention : reversed bit order (not with CS8416_01_CS) */
+		temp <<= 1;
+		if (rmh.stat[1] & (1 << i))
+			temp |= 1;
+	}
+	snd_printdd("read iec958 AES %d byte %d = 0x%x\n", chip->chip_idx, aes_idx, temp);
+	*aes_bits = temp;
+	return 0;
+}
+
+static int pcxhr_iec958_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	unsigned char aes_bits;
+	int i, err;
+
+	down(&chip->mgr->mixer_mutex);
+	for(i = 0; i < 5; i++) {
+		if (kcontrol->private_value == 0)	/* playback */
+			aes_bits = chip->aes_bits[i];
+		else {				/* capture */
+			err = pcxhr_iec958_capture_byte(chip, i, &aes_bits);
+			if (err)
+				break;
+		}
+		ucontrol->value.iec958.status[i] = aes_bits;
+	}
+	up(&chip->mgr->mixer_mutex);
+        return 0;
+}
+
+static int pcxhr_iec958_mask_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	int i;
+	for (i = 0; i < 5; i++)
+		ucontrol->value.iec958.status[i] = 0xff;
+        return 0;
+}
+
+static int pcxhr_iec958_update_byte(struct snd_pcxhr *chip, int aes_idx, unsigned char aes_bits)
+{
+	int i, err, cmd;
+	unsigned char new_bits = aes_bits;
+	unsigned char old_bits = chip->aes_bits[aes_idx];
+	struct pcxhr_rmh rmh;
+
+	for (i = 0; i < 8; i++) {
+		if ((old_bits & 0x01) != (new_bits & 0x01)) {
+			cmd = chip->chip_idx & 0x03;		/* chip index 0..3 */
+			if(chip->chip_idx > 3)
+				/* new bit used if chip_idx>3 (PCX1222HR) */
+				cmd |= 1 << 22;
+			cmd |= ((aes_idx << 3) + i) << 2;	/* add bit offset */
+			cmd |= (new_bits & 0x01) << 23;		/* add bit value */
+			pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+			rmh.cmd[0] |= IO_NUM_REG_CUER;
+			rmh.cmd[1] = cmd;
+			rmh.cmd_len = 2;
+			snd_printdd("write iec958 AES %d byte %d bit %d (cmd %x)\n",
+				    chip->chip_idx, aes_idx, i, cmd);
+			err = pcxhr_send_msg(chip->mgr, &rmh);
+			if (err)
+				return err;
+		}
+		old_bits >>= 1;
+		new_bits >>= 1;
+	}
+	chip->aes_bits[aes_idx] = aes_bits;
+	return 0;
+}
+
+static int pcxhr_iec958_put(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pcxhr *chip = snd_kcontrol_chip(kcontrol);
+	int i, changed = 0;
+
+	/* playback */
+	down(&chip->mgr->mixer_mutex);
+	for (i = 0; i < 5; i++) {
+		if (ucontrol->value.iec958.status[i] != chip->aes_bits[i]) {
+			pcxhr_iec958_update_byte(chip, i, ucontrol->value.iec958.status[i]);
+			changed = 1;
+		}
+	}
+	up(&chip->mgr->mixer_mutex);
+	return changed;
+}
+
+static struct snd_kcontrol_new pcxhr_control_playback_iec958_mask = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
+	.info =		pcxhr_iec958_info,
+	.get =		pcxhr_iec958_mask_get
+};
+static struct snd_kcontrol_new pcxhr_control_playback_iec958 = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+	.info =         pcxhr_iec958_info,
+	.get =          pcxhr_iec958_get,
+	.put =          pcxhr_iec958_put,
+	.private_value = 0 /* playback */
+};
+
+static struct snd_kcontrol_new pcxhr_control_capture_iec958_mask = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
+	.info =		pcxhr_iec958_info,
+	.get =		pcxhr_iec958_mask_get
+};
+static struct snd_kcontrol_new pcxhr_control_capture_iec958 = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
+	.info =         pcxhr_iec958_info,
+	.get =          pcxhr_iec958_get,
+	.private_value = 1 /* capture */
+};
+
+static void pcxhr_init_audio_levels(struct snd_pcxhr *chip)
+{
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		if (chip->nb_streams_play) {
+			int j;
+			/* at boot time the digital volumes are unmuted 0dB */
+			for (j = 0; j < PCXHR_PLAYBACK_STREAMS; j++) {
+				chip->digital_playback_active[j][i] = 1;
+				chip->digital_playback_volume[j][i] = PCXHR_DIGITAL_ZERO_LEVEL;
+			}
+			/* after boot, only two bits are set on the uer interface */
+			chip->aes_bits[0] = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_FS_48000;
+/* only for test purpose, remove later */
+#ifdef CONFIG_SND_DEBUG
+			/* analog volumes for playback (is LEVEL_MIN after boot) */
+			chip->analog_playback_active[i] = 1;
+			chip->analog_playback_volume[i] = PCXHR_ANALOG_PLAYBACK_ZERO_LEVEL;
+			pcxhr_update_analog_audio_level(chip, 0, i);
+#endif
+/* test end */
+		}
+		if (chip->nb_streams_capt) {
+			/* at boot time the digital volumes are unmuted 0dB */
+			chip->digital_capture_volume[i] = PCXHR_DIGITAL_ZERO_LEVEL;
+/* only for test purpose, remove later */
+#ifdef CONFIG_SND_DEBUG
+			/* analog volumes for playback (is LEVEL_MIN after boot) */
+			chip->analog_capture_volume[i]  = PCXHR_ANALOG_CAPTURE_ZERO_LEVEL;
+			pcxhr_update_analog_audio_level(chip, 1, i);
+#endif
+/* test end */
+		}
+	}
+
+	return;
+}
+
+
+int pcxhr_create_mixer(struct pcxhr_mgr *mgr)
+{
+	struct snd_pcxhr *chip;
+	int err, i;
+
+	init_MUTEX(&mgr->mixer_mutex); /* can be in another place */
+
+	for (i = 0; i < mgr->num_cards; i++) {
+		struct snd_kcontrol_new temp;
+		chip = mgr->chip[i];
+
+		if (chip->nb_streams_play) {
+			/* analog output level control */
+			temp = pcxhr_control_analog_level;
+			temp.name = "Master Playback Volume";
+			temp.private_value = 0; /* playback */
+			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+				return err;
+			/* output mute controls */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_output_switch,
+							    chip))) < 0)
+				return err;
+			
+			temp = snd_pcxhr_pcm_vol;
+			temp.name = "PCM Playback Volume";
+			temp.count = PCXHR_PLAYBACK_STREAMS;
+			temp.private_value = 0; /* playback */
+			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+				return err;
+
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_pcm_switch,
+							    chip))) < 0)
+				return err;
+
+			/* IEC958 controls */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_playback_iec958_mask,
+							    chip))) < 0)
+				return err;
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_playback_iec958,
+							    chip))) < 0)
+				return err;
+		}
+		if (chip->nb_streams_capt) {
+			/* analog input level control only on first two chips !*/
+			temp = pcxhr_control_analog_level;
+			temp.name = "Master Capture Volume";
+			temp.private_value = 1; /* capture */
+			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+				return err;
+
+			temp = snd_pcxhr_pcm_vol;
+			temp.name = "PCM Capture Volume";
+			temp.count = 1;
+			temp.private_value = 1; /* capture */
+			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+				return err;
+			/* Audio source */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_audio_src,
+							    chip))) < 0)
+				return err;
+			/* IEC958 controls */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_capture_iec958_mask,
+							    chip))) < 0)
+				return err;
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_capture_iec958,
+							    chip))) < 0)
+				return err;
+		}
+		/* monitoring only if playback and capture device available */
+		if (chip->nb_streams_capt > 0 && chip->nb_streams_play > 0) {
+			/* monitoring */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_monitor_vol,
+							    chip))) < 0)
+				return err;
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_monitor_sw,
+							    chip))) < 0)
+				return err;
+		}
+
+		if (i == 0) {
+			/* clock mode only one control per pcxhr */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_clock_type,
+							    mgr))) < 0)
+				return err;
+			/* non standard control used to scan the external clock presence/frequencies */
+			if ((err = snd_ctl_add(chip->card,
+					       snd_ctl_new1(&pcxhr_control_clock_rate,
+							    mgr))) < 0)
+				return err;
+		}
+
+		/* init values for the mixer data */
+		pcxhr_init_audio_levels(chip);
+	}
+
+	return 0;
+}

sound/pci/pcxhr/pcxhr_mixer.h

+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * include file for mixer
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef __SOUND_PCXHR_MIXER_H
+#define __SOUND_PCXHR_MIXER_H
+
+/* exported */
+int pcxhr_create_mixer(struct pcxhr_mgr *mgr);
+
+#endif /* __SOUND_PCXHR_MIXER_H */