Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1283 insertions, 0 deletions

diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
new file mode 100644
index 00000000000..82533b45bc8
--- /dev/null
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -0,0 +1,1283 @@
+/*
+ *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
+ *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
+ *  Version: 0.0.22
+ *
+ *  FEATURES currently supported:
+ *    Front, Rear and Center/LFE.
+ *    Surround40 and Surround51.
+ *    Capture from MIC an LINE IN input.
+ *    SPDIF digital playback of PCM stereo and AC3/DTS works.
+ *    (One can use a standard mono mini-jack to one RCA plugs cable.
+ *     or one can use a standard stereo mini-jack to two RCA plugs cable.
+ *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
+ *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
+ *    Notes on how to capture sound:
+ *      The AC97 is used in the PLAYBACK direction.
+ *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
+ *      So, to record from the MIC, set the MIC Playback volume to max,
+ *      unmute the MIC and turn up the MASTER Playback volume.
+ *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
+ *   
+ *    The only playback controls that currently do anything are: -
+ *    Analog Front
+ *    Analog Rear
+ *    Analog Center/LFE
+ *    SPDIF Front
+ *    SPDIF Rear
+ *    SPDIF Center/LFE
+ *   
+ *    For capture from Mic in or Line in.
+ *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
+ * 
+ *    CAPTURE feedback into PLAYBACK
+ * 
+ *  Changelog:
+ *    Support interrupts per period.
+ *    Removed noise from Center/LFE channel when in Analog mode.
+ *    Rename and remove mixer controls.
+ *  0.0.6
+ *    Use separate card based DMA buffer for periods table list.
+ *  0.0.7
+ *    Change remove and rename ctrls into lists.
+ *  0.0.8
+ *    Try to fix capture sources.
+ *  0.0.9
+ *    Fix AC3 output.
+ *    Enable S32_LE format support.
+ *  0.0.10
+ *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
+ *  0.0.11
+ *    Add Model name recognition.
+ *  0.0.12
+ *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
+ *    Remove redundent "voice" handling.
+ *  0.0.13
+ *    Single trigger call for multi channels.
+ *  0.0.14
+ *    Set limits based on what the sound card hardware can do.
+ *    playback periods_min=2, periods_max=8
+ *    capture hw constraints require period_size = n * 64 bytes.
+ *    playback hw constraints require period_size = n * 64 bytes.
+ *  0.0.15
+ *    Minor updates.
+ *  0.0.16
+ *    Implement 192000 sample rate.
+ *  0.0.17
+ *    Add support for SB0410 and SB0413.
+ *  0.0.18
+ *    Modified Copyright message.
+ *  0.0.19
+ *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
+ *    The output codec needs resetting, otherwise all output is muted.
+ *  0.0.20
+ *    Merge "pci_disable_device(pci);" fixes.
+ *  0.0.21
+ *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
+ *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
+ *  0.0.22
+ *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
+ *
+ *  BUGS:
+ *    Some stability problems when unloading the snd-ca0106 kernel module.
+ *    --
+ *
+ *  TODO:
+ *    4 Capture channels, only one implemented so far.
+ *    Other capture rates apart from 48khz not implemented.
+ *    MIDI
+ *    --
+ *  GENERAL INFO:
+ *    Model: SB0310
+ *    P17 Chip: CA0106-DAT
+ *    AC97 Codec: STAC 9721
+ *    ADC: Philips 1361T (Stereo 24bit)
+ *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
+ *
+ *  GENERAL INFO:
+ *    Model: SB0410
+ *    P17 Chip: CA0106-DAT
+ *    AC97 Codec: None
+ *    ADC: WM8775EDS (4 Channel)
+ *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
+ *    SPDIF Out control switches between Mic in and SPDIF out.
+ *    No sound out or mic input working yet.
+ * 
+ *  GENERAL INFO:
+ *    Model: SB0413
+ *    P17 Chip: CA0106-DAT
+ *    AC97 Codec: None.
+ *    ADC: Unknown
+ *    DAC: Unknown
+ *    Trying to handle it like the SB0410.
+ *
+ *  This code was initally based on code from ALSA's emu10k1x.c which is:
+ *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.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/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/info.h>
+
+MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
+MODULE_DESCRIPTION("CA0106");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
+
+// module parameters (see "Module Parameters")
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
+
+#include "ca0106.h"
+
+typedef struct {
+	u32 serial;
+	char * name;
+} ca0106_names_t;
+
+static ca0106_names_t ca0106_chip_names[] = {
+	 { 0x10021102, "AudigyLS [SB0310]"} , 
+	 { 0x10051102, "AudigyLS [SB0310b]"} , /* Unknown AudigyLS that also says SB0310 on it */
+	 { 0x10061102, "Live! 7.1 24bit [SB0410]"} , /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
+	 { 0x10071102, "Live! 7.1 24bit [SB0413]"} , /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
+	 { 0x10091462, "MSI K8N Diamond MB [SB0438]"}, /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
+	 { 0, "AudigyLS [Unknown]" }
+};
+
+/* hardware definition */
+static snd_pcm_hardware_t snd_ca0106_playback_hw = {
+	.info =			(SNDRV_PCM_INFO_MMAP | 
+				 SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
+	.rates =		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
+	.rate_min =		48000,
+	.rate_max =		192000,
+	.channels_min =		2,  //1,
+	.channels_max =		2,  //6,
+	.buffer_bytes_max =	((65536 - 64) * 8),
+	.period_bytes_min =	64,
+	.period_bytes_max =	(65536 - 64),
+	.periods_min =		2,
+	.periods_max =		8,
+	.fifo_size =		0,
+};
+
+static snd_pcm_hardware_t snd_ca0106_capture_hw = {
+	.info =			(SNDRV_PCM_INFO_MMAP | 
+				 SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =		SNDRV_PCM_RATE_48000,
+	.rate_min =		48000,
+	.rate_max =		48000,
+	.channels_min =		2,
+	.channels_max =		2,
+	.buffer_bytes_max =	((65536 - 64) * 8),
+	.period_bytes_min =	64,
+	.period_bytes_max =	(65536 - 64),
+	.periods_min =		2,
+	.periods_max =		2,
+	.fifo_size =		0,
+};
+
+unsigned int snd_ca0106_ptr_read(ca0106_t * emu, 
+					  unsigned int reg, 
+					  unsigned int chn)
+{
+	unsigned long flags;
+	unsigned int regptr, val;
+  
+	regptr = (reg << 16) | chn;
+
+	spin_lock_irqsave(&emu->emu_lock, flags);
+	outl(regptr, emu->port + PTR);
+	val = inl(emu->port + DATA);
+	spin_unlock_irqrestore(&emu->emu_lock, flags);
+	return val;
+}
+
+void snd_ca0106_ptr_write(ca0106_t *emu, 
+				   unsigned int reg, 
+				   unsigned int chn, 
+				   unsigned int data)
+{
+	unsigned int regptr;
+	unsigned long flags;
+
+	regptr = (reg << 16) | chn;
+
+	spin_lock_irqsave(&emu->emu_lock, flags);
+	outl(regptr, emu->port + PTR);
+	outl(data, emu->port + DATA);
+	spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static void snd_ca0106_intr_enable(ca0106_t *emu, unsigned int intrenb)
+{
+	unsigned long flags;
+	unsigned int enable;
+  
+	spin_lock_irqsave(&emu->emu_lock, flags);
+	enable = inl(emu->port + INTE) | intrenb;
+	outl(enable, emu->port + INTE);
+	spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static void snd_ca0106_pcm_free_substream(snd_pcm_runtime_t *runtime)
+{
+	ca0106_pcm_t *epcm = runtime->private_data;
+  
+	if (epcm) {
+		kfree(epcm);
+	}
+}
+
+/* open_playback callback */
+static int snd_ca0106_pcm_open_playback_channel(snd_pcm_substream_t *substream, int channel_id)
+{
+	ca0106_t *chip = snd_pcm_substream_chip(substream);
+        ca0106_channel_t *channel = &(chip->playback_channels[channel_id]);
+	ca0106_pcm_t *epcm;
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int err;
+
+	epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
+
+	if (epcm == NULL)
+		return -ENOMEM;
+	epcm->emu = chip;
+	epcm->substream = substream;
+        epcm->channel_id=channel_id;
+  
+	runtime->private_data = epcm;
+	runtime->private_free = snd_ca0106_pcm_free_substream;
+  
+	runtime->hw = snd_ca0106_playback_hw;
+
+        channel->emu = chip;
+        channel->number = channel_id;
+
+        channel->use=1;
+        //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
+        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
+        channel->epcm=epcm;
+	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
+                return err;
+	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
+                return err;
+	return 0;
+}
+
+/* close callback */
+static int snd_ca0106_pcm_close_playback(snd_pcm_substream_t *substream)
+{
+	ca0106_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+        ca0106_pcm_t *epcm = runtime->private_data;
+        chip->playback_channels[epcm->channel_id].use=0;
+/* FIXME: maybe zero others */
+	return 0;
+}
+
+static int snd_ca0106_pcm_open_playback_front(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
+}
+
+static int snd_ca0106_pcm_open_playback_center_lfe(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
+}
+
+static int snd_ca0106_pcm_open_playback_unknown(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
+}
+
+static int snd_ca0106_pcm_open_playback_rear(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
+}
+
+/* open_capture callback */
+static int snd_ca0106_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
+{
+	ca0106_t *chip = snd_pcm_substream_chip(substream);
+        ca0106_channel_t *channel = &(chip->capture_channels[channel_id]);
+	ca0106_pcm_t *epcm;
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int err;
+
+	epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
+	if (epcm == NULL) {
+                snd_printk("open_capture_channel: failed epcm alloc\n");
+		return -ENOMEM;
+        }
+	epcm->emu = chip;
+	epcm->substream = substream;
+        epcm->channel_id=channel_id;
+  
+	runtime->private_data = epcm;
+	runtime->private_free = snd_ca0106_pcm_free_substream;
+  
+	runtime->hw = snd_ca0106_capture_hw;
+
+        channel->emu = chip;
+        channel->number = channel_id;
+
+        channel->use=1;
+        //printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
+        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
+        channel->epcm=epcm;
+	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
+                return err;
+	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
+	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
+                return err;
+	return 0;
+}
+
+/* close callback */
+static int snd_ca0106_pcm_close_capture(snd_pcm_substream_t *substream)
+{
+	ca0106_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+        ca0106_pcm_t *epcm = runtime->private_data;
+        chip->capture_channels[epcm->channel_id].use=0;
+/* FIXME: maybe zero others */
+	return 0;
+}
+
+static int snd_ca0106_pcm_open_0_capture(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_capture_channel(substream, 0);
+}
+
+static int snd_ca0106_pcm_open_1_capture(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_capture_channel(substream, 1);
+}
+
+static int snd_ca0106_pcm_open_2_capture(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_capture_channel(substream, 2);
+}
+
+static int snd_ca0106_pcm_open_3_capture(snd_pcm_substream_t *substream)
+{
+	return snd_ca0106_pcm_open_capture_channel(substream, 3);
+}
+
+/* hw_params callback */
+static int snd_ca0106_pcm_hw_params_playback(snd_pcm_substream_t *substream,
+				      snd_pcm_hw_params_t * hw_params)
+{
+	return snd_pcm_lib_malloc_pages(substream,
+					params_buffer_bytes(hw_params));
+}
+
+/* hw_free callback */
+static int snd_ca0106_pcm_hw_free_playback(snd_pcm_substream_t *substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+}
+
+/* hw_params callback */
+static int snd_ca0106_pcm_hw_params_capture(snd_pcm_substream_t *substream,
+				      snd_pcm_hw_params_t * hw_params)
+{
+	return snd_pcm_lib_malloc_pages(substream,
+					params_buffer_bytes(hw_params));
+}
+
+/* hw_free callback */
+static int snd_ca0106_pcm_hw_free_capture(snd_pcm_substream_t *substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+}
+
+/* prepare playback callback */
+static int snd_ca0106_pcm_prepare_playback(snd_pcm_substream_t *substream)
+{
+	ca0106_t *emu = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	ca0106_pcm_t *epcm = runtime->private_data;
+	int channel = epcm->channel_id;
+	u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
+	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
+	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
+	u32 hcfg_set = 0x00000000;
+	u32 hcfg;
+	u32 reg40_mask = 0x30000 << (channel<<1);
+	u32 reg40_set = 0;
+	u32 reg40;
+	/* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
+	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
+	u32 reg71_set = 0;
+	u32 reg71;
+	int i;
+	
+        //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1));
+        //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base);
+	//snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
+	/* Rate can be set per channel. */
+	/* reg40 control host to fifo */
+	/* reg71 controls DAC rate. */
+	switch (runtime->rate) {
+	case 44100:
+		reg40_set = 0x10000 << (channel<<1);
+		reg71_set = 0x01010000; 
+		break;
+        case 48000:
+		reg40_set = 0;
+		reg71_set = 0; 
+		break;
+	case 96000:
+		reg40_set = 0x20000 << (channel<<1);
+		reg71_set = 0x02020000; 
+		break;
+	case 192000:
+		reg40_set = 0x30000 << (channel<<1);
+		reg71_set = 0x03030000; 
+		break;
+	default:
+		reg40_set = 0;
+		reg71_set = 0; 
+		break;
+	}
+	/* Format is a global setting */
+	/* FIXME: Only let the first channel accessed set this. */
+	switch (runtime->format) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		hcfg_set = 0;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		hcfg_set = HCFG_PLAYBACK_S32_LE;
+		break;
+	default:
+		hcfg_set = 0;
+		break;
+	}
+	hcfg = inl(emu->port + HCFG) ;
+	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
+	outl(hcfg, emu->port + HCFG);
+	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
+	reg40 = (reg40 & ~reg40_mask) | reg40_set;
+	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
+	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
+	reg71 = (reg71 & ~reg71_mask) | reg71_set;
+	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
+
+	/* FIXME: Check emu->buffer.size before actually writing to it. */
+        for(i=0; i < runtime->periods; i++) {
+		table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
+		table_base[(i*2)+1]=period_size_bytes<<16;
+	}
+ 
+	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
+	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
+	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
+	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
+	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
+	/* FIXME  test what 0 bytes does. */
+	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
+	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
+	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
+	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
+        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
+#if 0
+	snd_ca0106_ptr_write(emu, SPCS0, 0,
+			       SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+			       SPCS_GENERATIONSTATUS | 0x00001200 |
+			       0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
+	}
+#endif
+
+	return 0;
+}
+
+/* prepare capture callback */
+static int snd_ca0106_pcm_prepare_capture(snd_pcm_substream_t *substream)
+{
+	ca0106_t *emu = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	ca0106_pcm_t *epcm = runtime->private_data;
+	int channel = epcm->channel_id;
+        //printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size,  frames_to_bytes(runtime, 1));
+	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
+	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
+	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
+	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
+
+	return 0;
+}
+
+/* trigger_playback callback */
+static int snd_ca0106_pcm_trigger_playback(snd_pcm_substream_t *substream,
+				    int cmd)
+{
+	ca0106_t *emu = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime;
+	ca0106_pcm_t *epcm;
+	int channel;
+	int result = 0;
+	struct list_head *pos;
+        snd_pcm_substream_t *s;
+	u32 basic = 0;
+	u32 extended = 0;
+	int running=0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		running=1;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	default:
+		running=0;
+		break;
+	}
+        snd_pcm_group_for_each(pos, substream) {
+                s = snd_pcm_group_substream_entry(pos);
+		runtime = s->runtime;
+		epcm = runtime->private_data;
+		channel = epcm->channel_id;
+		//snd_printk("channel=%d\n",channel);
+		epcm->running = running;
+		basic |= (0x1<<channel);
+		extended |= (0x10<<channel);
+                snd_pcm_trigger_done(s, substream);
+        }
+	//snd_printk("basic=0x%x, extended=0x%x\n",basic, extended);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (extended));
+		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(basic));
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
+		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(extended));
+		break;
+	default:
+		result = -EINVAL;
+		break;
+	}
+	return result;
+}
+
+/* trigger_capture callback */
+static int snd_ca0106_pcm_trigger_capture(snd_pcm_substream_t *substream,
+				    int cmd)
+{
+	ca0106_t *emu = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	ca0106_pcm_t *epcm = runtime->private_data;
+	int channel = epcm->channel_id;
+	int result = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
+		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
+		epcm->running = 1;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
+		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
+		epcm->running = 0;
+		break;
+	default:
+		result = -EINVAL;
+		break;
+	}
+	return result;
+}
+
+/* pointer_playback callback */
+static snd_pcm_uframes_t
+snd_ca0106_pcm_pointer_playback(snd_pcm_substream_t *substream)
+{
+	ca0106_t *emu = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	ca0106_pcm_t *epcm = runtime->private_data;
+	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
+	int channel = epcm->channel_id;
+
+	if (!epcm->running)
+		return 0;
+
+	ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
+	ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
+	ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
+	if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
+	ptr2 = bytes_to_frames(runtime, ptr1);
+	ptr2+= (ptr4 >> 3) * runtime->period_size;
+	ptr=ptr2;
+        if (ptr >= runtime->buffer_size)
+		ptr -= runtime->buffer_size;
+	//printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
+
+	return ptr;
+}
+
+/* pointer_capture callback */
+static snd_pcm_uframes_t
+snd_ca0106_pcm_pointer_capture(snd_pcm_substream_t *substream)
+{
+	ca0106_t *emu = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	ca0106_pcm_t *epcm = runtime->private_data;
+	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
+	int channel = channel=epcm->channel_id;
+
+	if (!epcm->running)
+		return 0;
+
+	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
+	ptr2 = bytes_to_frames(runtime, ptr1);
+	ptr=ptr2;
+        if (ptr >= runtime->buffer_size)
+		ptr -= runtime->buffer_size;
+	//printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);
+
+	return ptr;
+}
+
+/* operators */
+static snd_pcm_ops_t snd_ca0106_playback_front_ops = {
+	.open =        snd_ca0106_pcm_open_playback_front,
+	.close =       snd_ca0106_pcm_close_playback,
+	.ioctl =       snd_pcm_lib_ioctl,
+	.hw_params =   snd_ca0106_pcm_hw_params_playback,
+	.hw_free =     snd_ca0106_pcm_hw_free_playback,
+	.prepare =     snd_ca0106_pcm_prepare_playback,
+	.trigger =     snd_ca0106_pcm_trigger_playback,
+	.pointer =     snd_ca0106_pcm_pointer_playback,
+};
+
+static snd_pcm_ops_t snd_ca0106_capture_0_ops = {
+	.open =        snd_ca0106_pcm_open_0_capture,
+	.close =       snd_ca0106_pcm_close_capture,
+	.ioctl =       snd_pcm_lib_ioctl,
+	.hw_params =   snd_ca0106_pcm_hw_params_capture,
+	.hw_free =     snd_ca0106_pcm_hw_free_capture,
+	.prepare =     snd_ca0106_pcm_prepare_capture,
+	.trigger =     snd_ca0106_pcm_trigger_capture,
+	.pointer =     snd_ca0106_pcm_pointer_capture,
+};
+
+static snd_pcm_ops_t snd_ca0106_capture_1_ops = {
+	.open =        snd_ca0106_pcm_open_1_capture,
+	.close =       snd_ca0106_pcm_close_capture,
+	.ioctl =       snd_pcm_lib_ioctl,
+	.hw_params =   snd_ca0106_pcm_hw_params_capture,
+	.hw_free =     snd_ca0106_pcm_hw_free_capture,
+	.prepare =     snd_ca0106_pcm_prepare_capture,
+	.trigger =     snd_ca0106_pcm_trigger_capture,
+	.pointer =     snd_ca0106_pcm_pointer_capture,
+};
+
+static snd_pcm_ops_t snd_ca0106_capture_2_ops = {
+	.open =        snd_ca0106_pcm_open_2_capture,
+	.close =       snd_ca0106_pcm_close_capture,
+	.ioctl =       snd_pcm_lib_ioctl,
+	.hw_params =   snd_ca0106_pcm_hw_params_capture,
+	.hw_free =     snd_ca0106_pcm_hw_free_capture,
+	.prepare =     snd_ca0106_pcm_prepare_capture,
+	.trigger =     snd_ca0106_pcm_trigger_capture,
+	.pointer =     snd_ca0106_pcm_pointer_capture,
+};
+
+static snd_pcm_ops_t snd_ca0106_capture_3_ops = {
+	.open =        snd_ca0106_pcm_open_3_capture,
+	.close =       snd_ca0106_pcm_close_capture,
+	.ioctl =       snd_pcm_lib_ioctl,
+	.hw_params =   snd_ca0106_pcm_hw_params_capture,
+	.hw_free =     snd_ca0106_pcm_hw_free_capture,
+	.prepare =     snd_ca0106_pcm_prepare_capture,
+	.trigger =     snd_ca0106_pcm_trigger_capture,
+	.pointer =     snd_ca0106_pcm_pointer_capture,
+};
+
+static snd_pcm_ops_t snd_ca0106_playback_center_lfe_ops = {
+        .open =         snd_ca0106_pcm_open_playback_center_lfe,
+        .close =        snd_ca0106_pcm_close_playback,
+        .ioctl =        snd_pcm_lib_ioctl,
+        .hw_params =    snd_ca0106_pcm_hw_params_playback,
+        .hw_free =      snd_ca0106_pcm_hw_free_playback,
+        .prepare =      snd_ca0106_pcm_prepare_playback,     
+        .trigger =      snd_ca0106_pcm_trigger_playback,  
+        .pointer =      snd_ca0106_pcm_pointer_playback, 
+};
+
+static snd_pcm_ops_t snd_ca0106_playback_unknown_ops = {
+        .open =         snd_ca0106_pcm_open_playback_unknown,
+        .close =        snd_ca0106_pcm_close_playback,
+        .ioctl =        snd_pcm_lib_ioctl,
+        .hw_params =    snd_ca0106_pcm_hw_params_playback,
+        .hw_free =      snd_ca0106_pcm_hw_free_playback,
+        .prepare =      snd_ca0106_pcm_prepare_playback,     
+        .trigger =      snd_ca0106_pcm_trigger_playback,  
+        .pointer =      snd_ca0106_pcm_pointer_playback, 
+};
+
+static snd_pcm_ops_t snd_ca0106_playback_rear_ops = {
+        .open =         snd_ca0106_pcm_open_playback_rear,
+        .close =        snd_ca0106_pcm_close_playback,
+        .ioctl =        snd_pcm_lib_ioctl,
+        .hw_params =    snd_ca0106_pcm_hw_params_playback,
+		.hw_free =      snd_ca0106_pcm_hw_free_playback,
+        .prepare =      snd_ca0106_pcm_prepare_playback,     
+        .trigger =      snd_ca0106_pcm_trigger_playback,  
+        .pointer =      snd_ca0106_pcm_pointer_playback, 
+};
+
+
+static unsigned short snd_ca0106_ac97_read(ac97_t *ac97,
+					     unsigned short reg)
+{
+	ca0106_t *emu = ac97->private_data;
+	unsigned long flags;
+	unsigned short val;
+
+	spin_lock_irqsave(&emu->emu_lock, flags);
+	outb(reg, emu->port + AC97ADDRESS);
+	val = inw(emu->port + AC97DATA);
+	spin_unlock_irqrestore(&emu->emu_lock, flags);
+	return val;
+}
+
+static void snd_ca0106_ac97_write(ac97_t *ac97,
+				    unsigned short reg, unsigned short val)
+{
+	ca0106_t *emu = ac97->private_data;
+	unsigned long flags;
+  
+	spin_lock_irqsave(&emu->emu_lock, flags);
+	outb(reg, emu->port + AC97ADDRESS);
+	outw(val, emu->port + AC97DATA);
+	spin_unlock_irqrestore(&emu->emu_lock, flags);
+}
+
+static int snd_ca0106_ac97(ca0106_t *chip)
+{
+	ac97_bus_t *pbus;
+	ac97_template_t ac97;
+	int err;
+	static ac97_bus_ops_t ops = {
+		.write = snd_ca0106_ac97_write,
+		.read = snd_ca0106_ac97_read,
+	};
+  
+	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
+		return err;
+	pbus->no_vra = 1; /* we don't need VRA */
+
+	memset(&ac97, 0, sizeof(ac97));
+	ac97.private_data = chip;
+	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
+}
+
+static int snd_ca0106_free(ca0106_t *chip)
+{
+	if (chip->res_port != NULL) {    /* avoid access to already used hardware */
+		// disable interrupts
+		snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
+		outl(0, chip->port + INTE);
+		snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
+		udelay(1000);
+		// disable audio
+		//outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
+		outl(0, chip->port + HCFG);
+		/* FIXME: We need to stop and DMA transfers here.
+		 *        But as I am not sure how yet, we cannot from the dma pages.
+		 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
+		 */
+	}
+	// release the data
+#if 1
+	if (chip->buffer.area)
+		snd_dma_free_pages(&chip->buffer);
+#endif
+
+	// release the i/o port
+	if (chip->res_port) {
+		release_resource(chip->res_port);
+		kfree_nocheck(chip->res_port);
+	}
+	// release the irq
+	if (chip->irq >= 0)
+		free_irq(chip->irq, (void *)chip);
+	pci_disable_device(chip->pci);
+	kfree(chip);
+	return 0;
+}
+
+static int snd_ca0106_dev_free(snd_device_t *device)
+{
+	ca0106_t *chip = device->device_data;
+	return snd_ca0106_free(chip);
+}
+
+static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id,
+					  struct pt_regs *regs)
+{
+	unsigned int status;
+
+	ca0106_t *chip = dev_id;
+	int i;
+	int mask;
+        unsigned int stat76;
+	ca0106_channel_t *pchannel;
+
+	spin_lock(&chip->emu_lock);
+
+	status = inl(chip->port + IPR);
+
+	// call updater, unlock before it
+	spin_unlock(&chip->emu_lock);
+  
+	if (! status)
+		return IRQ_NONE;
+
+        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
+	//snd_printk("interrupt status = 0x%08x, stat76=0x%08x\n", status, stat76);
+	//snd_printk("ptr=0x%08x\n",snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
+        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
+	for(i = 0; i < 4; i++) {
+		pchannel = &(chip->playback_channels[i]);
+		if(stat76 & mask) {
+/* FIXME: Select the correct substream for period elapsed */
+			if(pchannel->use) {
+                          snd_pcm_period_elapsed(pchannel->epcm->substream);
+	                //printk(KERN_INFO "interrupt [%d] used\n", i);
+                        }
+		}
+	        //printk(KERN_INFO "channel=%p\n",pchannel);
+	        //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
+		mask <<= 1;
+	}
+        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
+	for(i = 0; i < 4; i++) {
+		pchannel = &(chip->capture_channels[i]);
+		if(stat76 & mask) {
+/* FIXME: Select the correct substream for period elapsed */
+			if(pchannel->use) {
+                          snd_pcm_period_elapsed(pchannel->epcm->substream);
+	                //printk(KERN_INFO "interrupt [%d] used\n", i);
+                        }
+		}
+	        //printk(KERN_INFO "channel=%p\n",pchannel);
+	        //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
+		mask <<= 1;
+	}
+
+        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
+	spin_lock(&chip->emu_lock);
+	// acknowledge the interrupt if necessary
+	outl(status, chip->port+IPR);
+
+	spin_unlock(&chip->emu_lock);
+
+	return IRQ_HANDLED;
+}
+
+static void snd_ca0106_pcm_free(snd_pcm_t *pcm)
+{
+	ca0106_t *emu = pcm->private_data;
+	emu->pcm = NULL;
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static int __devinit snd_ca0106_pcm(ca0106_t *emu, int device, snd_pcm_t **rpcm)
+{
+	snd_pcm_t *pcm;
+	snd_pcm_substream_t *substream;
+	int err;
+  
+	if (rpcm)
+		*rpcm = NULL;
+	if ((err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm)) < 0)
+		return err;
+  
+	pcm->private_data = emu;
+	pcm->private_free = snd_ca0106_pcm_free;
+
+	switch (device) {
+	case 0:
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
+          break;
+	case 1:
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
+          break;
+	case 2:
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
+          break;
+	case 3:
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
+	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
+          break;
+        }
+
+	pcm->info_flags = 0;
+	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
+	strcpy(pcm->name, "CA0106");
+	emu->pcm = pcm;
+
+	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
+	    substream; 
+	    substream = substream->next) {
+		if ((err = snd_pcm_lib_preallocate_pages(substream, 
+							 SNDRV_DMA_TYPE_DEV, 
+							 snd_dma_pci_data(emu->pci), 
+							 64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
+			return err;
+	}
+
+	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
+	      substream; 
+	      substream = substream->next) {
+ 		if ((err = snd_pcm_lib_preallocate_pages(substream, 
+	                                           SNDRV_DMA_TYPE_DEV, 
+	                                           snd_dma_pci_data(emu->pci), 
+	                                           64*1024, 64*1024)) < 0)
+			return err;
+	}
+  
+	if (rpcm)
+		*rpcm = pcm;
+  
+	return 0;
+}
+
+static int __devinit snd_ca0106_create(snd_card_t *card,
+					 struct pci_dev *pci,
+					 ca0106_t **rchip)
+{
+	ca0106_t *chip;
+	int err;
+	int ch;
+	static snd_device_ops_t ops = {
+		.dev_free = snd_ca0106_dev_free,
+	};
+  
+	*rchip = NULL;
+  
+	if ((err = pci_enable_device(pci)) < 0)
+		return err;
+	if (pci_set_dma_mask(pci, 0xffffffffUL) < 0 ||
+	    pci_set_consistent_dma_mask(pci, 0xffffffffUL) < 0) {
+		printk(KERN_ERR "error to set 32bit mask DMA\n");
+		pci_disable_device(pci);
+		return -ENXIO;
+	}
+  
+	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL) {
+		pci_disable_device(pci);
+		return -ENOMEM;
+	}
+  
+	chip->card = card;
+	chip->pci = pci;
+	chip->irq = -1;
+
+	spin_lock_init(&chip->emu_lock);
+  
+	chip->port = pci_resource_start(pci, 0);
+	if ((chip->res_port = request_region(chip->port, 0x20,
+					     "snd_ca0106")) == NULL) { 
+		snd_ca0106_free(chip);
+		printk(KERN_ERR "cannot allocate the port\n");
+		return -EBUSY;
+	}
+
+	if (request_irq(pci->irq, snd_ca0106_interrupt,
+			SA_INTERRUPT|SA_SHIRQ, "snd_ca0106",
+			(void *)chip)) {
+		snd_ca0106_free(chip);
+		printk(KERN_ERR "cannot grab irq\n");
+		return -EBUSY;
+	}
+	chip->irq = pci->irq;
+  
+ 	/* This stores the periods table. */ 
+	if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &chip->buffer) < 0) {
+		snd_ca0106_free(chip);
+		return -ENOMEM;
+	}
+
+	pci_set_master(pci);
+	/* read revision & serial */
+	pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
+	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
+	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
+#if 1
+	printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
+	       chip->revision, chip->serial);
+#endif
+
+	outl(0, chip->port + INTE);
+
+	/*
+	 *  Init to 0x02109204 :
+	 *  Clock accuracy    = 0     (1000ppm)
+	 *  Sample Rate       = 2     (48kHz)
+	 *  Audio Channel     = 1     (Left of 2)
+	 *  Source Number     = 0     (Unspecified)
+	 *  Generation Status = 1     (Original for Cat Code 12)
+	 *  Cat Code          = 12    (Digital Signal Mixer)
+	 *  Mode              = 0     (Mode 0)
+	 *  Emphasis          = 0     (None)
+	 *  CP                = 1     (Copyright unasserted)
+	 *  AN                = 0     (Audio data)
+	 *  P                 = 0     (Consumer)
+	 */
+	snd_ca0106_ptr_write(chip, SPCS0, 0,
+				chip->spdif_bits[0] =
+				SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+				SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+				SPCS_GENERATIONSTATUS | 0x00001200 |
+				0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+	/* Only SPCS1 has been tested */
+	snd_ca0106_ptr_write(chip, SPCS1, 0,
+				chip->spdif_bits[1] =
+				SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+				SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+				SPCS_GENERATIONSTATUS | 0x00001200 |
+				0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+	snd_ca0106_ptr_write(chip, SPCS2, 0,
+				chip->spdif_bits[2] =
+				SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+				SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+				SPCS_GENERATIONSTATUS | 0x00001200 |
+				0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+	snd_ca0106_ptr_write(chip, SPCS3, 0,
+				chip->spdif_bits[3] =
+				SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
+				SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
+				SPCS_GENERATIONSTATUS | 0x00001200 |
+				0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
+
+        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
+        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
+
+        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
+        outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
+        outw(0x8000, chip->port + AC97DATA);
+#if 0
+	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
+	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
+	snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
+	snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
+#endif
+
+	//snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); /* OSS drivers set this. */
+	/* Analog or Digital output */
+	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
+	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000b0000); /* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers */
+	chip->spdif_enable = 0; /* Set digital SPDIF output off */
+	chip->capture_source = 3; /* Set CAPTURE_SOURCE */
+	//snd_ca0106_ptr_write(chip, 0x45, 0, 0); /* Analogue out */
+	//snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00); /* Digital out */
+
+	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000); /* goes to 0x40c80000 when doing SPDIF IN/OUT */
+	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff); /* (Mute) CAPTURE feedback into PLAYBACK volume. Only lower 16 bits matter. */
+	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000); /* SPDIF IN Volume */
+	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000); /* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
+	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
+	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
+	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
+	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
+	for(ch = 0; ch < 4; ch++) {
+		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030); /* Only high 16 bits matter */
+		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
+		//snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040); /* Mute */
+		//snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040); /* Mute */
+		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff); /* Mute */
+		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff); /* Mute */
+	}
+        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC, Line in, TAD in, AUX in */
+	chip->capture_source = 3; /* Set CAPTURE_SOURCE */
+
+        if ((chip->serial == 0x10061102) || 
+	    (chip->serial == 0x10071102) ||
+	    (chip->serial == 0x10091462)) { /* The SB0410 and SB0413 use GPIO differently. */
+		/* FIXME: Still need to find out what the other GPIO bits do. E.g. For digital spdif out. */
+		outl(0x0, chip->port+GPIO);
+		//outl(0x00f0e000, chip->port+GPIO); /* Analog */
+		outl(0x005f4300, chip->port+GPIO); /* Analog */
+	} else {
+		outl(0x0, chip->port+GPIO);
+		outl(0x005f03a3, chip->port+GPIO); /* Analog */
+		//outl(0x005f02a2, chip->port+GPIO);   /* SPDIF */
+	}
+	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
+
+	//outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
+	//outl(0x00001409, chip->port+HCFG); /* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
+	//outl(0x00000009, chip->port+HCFG);
+	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG); /* AC97 2.0, Enable outputs. */
+
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+				  chip, &ops)) < 0) {
+		snd_ca0106_free(chip);
+		return err;
+	}
+	*rchip = chip;
+	return 0;
+}
+
+static int __devinit snd_ca0106_probe(struct pci_dev *pci,
+					const struct pci_device_id *pci_id)
+{
+	static int dev;
+	snd_card_t *card;
+	ca0106_t *chip;
+	ca0106_names_t *c;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+	if (card == NULL)
+		return -ENOMEM;
+
+	if ((err = snd_ca0106_create(card, pci, &chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	if ((err = snd_ca0106_pcm(chip, 0, NULL)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_ca0106_pcm(chip, 1, NULL)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_ca0106_pcm(chip, 2, NULL)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_ca0106_pcm(chip, 3, NULL)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+        if ((chip->serial != 0x10061102) && 
+	    (chip->serial != 0x10071102) && 
+	    (chip->serial != 0x10091462) ) { /* The SB0410 and SB0413 do not have an ac97 chip. */
+		if ((err = snd_ca0106_ac97(chip)) < 0) {
+			snd_card_free(card);
+			return err;
+		}
+	}
+	if ((err = snd_ca0106_mixer(chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	snd_ca0106_proc_init(chip);
+
+	strcpy(card->driver, "CA0106");
+	strcpy(card->shortname, "CA0106");
+
+	for (c=ca0106_chip_names; c->serial; c++) {
+		if (c->serial == chip->serial) break;
+	}
+	sprintf(card->longname, "%s at 0x%lx irq %i",
+		c->name, chip->port, chip->irq);
+
+	if ((err = snd_card_register(card)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	pci_set_drvdata(pci, card);
+	dev++;
+	return 0;
+}
+
+static void __devexit snd_ca0106_remove(struct pci_dev *pci)
+{
+	snd_card_free(pci_get_drvdata(pci));
+	pci_set_drvdata(pci, NULL);
+}
+
+// PCI IDs
+static struct pci_device_id snd_ca0106_ids[] = {
+	{ 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },	/* Audigy LS or Live 24bit */
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
+
+// pci_driver definition
+static struct pci_driver driver = {
+	.name = "CA0106",
+	.id_table = snd_ca0106_ids,
+	.probe = snd_ca0106_probe,
+	.remove = __devexit_p(snd_ca0106_remove),
+};
+
+// initialization of the module
+static int __init alsa_card_ca0106_init(void)
+{
+	int err;
+
+	if ((err = pci_module_init(&driver)) > 0)
+		return err;
+
+	return 0;
+}
+
+// clean up the module
+static void __exit alsa_card_ca0106_exit(void)
+{
+	pci_unregister_driver(&driver);
+}
+
+module_init(alsa_card_ca0106_init)
+module_exit(alsa_card_ca0106_exit)