• Home
  • History
  • Annotate
  • Line#
  • Navigate
  • Raw
  • Download
  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pci/ca0106/
1/*
2 *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
3 *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
4 *  Version: 0.0.25
5 *
6 *  FEATURES currently supported:
7 *    Front, Rear and Center/LFE.
8 *    Surround40 and Surround51.
9 *    Capture from MIC an LINE IN input.
10 *    SPDIF digital playback of PCM stereo and AC3/DTS works.
11 *    (One can use a standard mono mini-jack to one RCA plugs cable.
12 *     or one can use a standard stereo mini-jack to two RCA plugs cable.
13 *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
14 *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
15 *    Notes on how to capture sound:
16 *      The AC97 is used in the PLAYBACK direction.
17 *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
18 *      So, to record from the MIC, set the MIC Playback volume to max,
19 *      unmute the MIC and turn up the MASTER Playback volume.
20 *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
21 *
22 *    The only playback controls that currently do anything are: -
23 *    Analog Front
24 *    Analog Rear
25 *    Analog Center/LFE
26 *    SPDIF Front
27 *    SPDIF Rear
28 *    SPDIF Center/LFE
29 *
30 *    For capture from Mic in or Line in.
31 *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
32 *
33 *    CAPTURE feedback into PLAYBACK
34 *
35 *  Changelog:
36 *    Support interrupts per period.
37 *    Removed noise from Center/LFE channel when in Analog mode.
38 *    Rename and remove mixer controls.
39 *  0.0.6
40 *    Use separate card based DMA buffer for periods table list.
41 *  0.0.7
42 *    Change remove and rename ctrls into lists.
43 *  0.0.8
44 *    Try to fix capture sources.
45 *  0.0.9
46 *    Fix AC3 output.
47 *    Enable S32_LE format support.
48 *  0.0.10
49 *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
50 *  0.0.11
51 *    Add Model name recognition.
52 *  0.0.12
53 *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
54 *    Remove redundent "voice" handling.
55 *  0.0.13
56 *    Single trigger call for multi channels.
57 *  0.0.14
58 *    Set limits based on what the sound card hardware can do.
59 *    playback periods_min=2, periods_max=8
60 *    capture hw constraints require period_size = n * 64 bytes.
61 *    playback hw constraints require period_size = n * 64 bytes.
62 *  0.0.15
63 *    Minor updates.
64 *  0.0.16
65 *    Implement 192000 sample rate.
66 *  0.0.17
67 *    Add support for SB0410 and SB0413.
68 *  0.0.18
69 *    Modified Copyright message.
70 *  0.0.19
71 *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
72 *    The output codec needs resetting, otherwise all output is muted.
73 *  0.0.20
74 *    Merge "pci_disable_device(pci);" fixes.
75 *  0.0.21
76 *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
77 *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
78 *  0.0.22
79 *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
80 *  0.0.23
81 *    Implement support for Line-in capture on SB Live 24bit.
82 *  0.0.24
83 *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
84 *  0.0.25
85 *    Powerdown SPI DAC channels when not in use
86 *
87 *  BUGS:
88 *    Some stability problems when unloading the snd-ca0106 kernel module.
89 *    --
90 *
91 *  TODO:
92 *    4 Capture channels, only one implemented so far.
93 *    Other capture rates apart from 48khz not implemented.
94 *    MIDI
95 *    --
96 *  GENERAL INFO:
97 *    Model: SB0310
98 *    P17 Chip: CA0106-DAT
99 *    AC97 Codec: STAC 9721
100 *    ADC: Philips 1361T (Stereo 24bit)
101 *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
102 *
103 *  GENERAL INFO:
104 *    Model: SB0410
105 *    P17 Chip: CA0106-DAT
106 *    AC97 Codec: None
107 *    ADC: WM8775EDS (4 Channel)
108 *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
109 *    SPDIF Out control switches between Mic in and SPDIF out.
110 *    No sound out or mic input working yet.
111 *
112 *  GENERAL INFO:
113 *    Model: SB0413
114 *    P17 Chip: CA0106-DAT
115 *    AC97 Codec: None.
116 *    ADC: Unknown
117 *    DAC: Unknown
118 *    Trying to handle it like the SB0410.
119 *
120 *  This code was initally based on code from ALSA's emu10k1x.c which is:
121 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
122 *
123 *   This program is free software; you can redistribute it and/or modify
124 *   it under the terms of the GNU General Public License as published by
125 *   the Free Software Foundation; either version 2 of the License, or
126 *   (at your option) any later version.
127 *
128 *   This program is distributed in the hope that it will be useful,
129 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
130 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
131 *   GNU General Public License for more details.
132 *
133 *   You should have received a copy of the GNU General Public License
134 *   along with this program; if not, write to the Free Software
135 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
136 *
137 */
138#include <linux/delay.h>
139#include <linux/init.h>
140#include <linux/interrupt.h>
141#include <linux/pci.h>
142#include <linux/slab.h>
143#include <linux/moduleparam.h>
144#include <linux/dma-mapping.h>
145#include <sound/core.h>
146#include <sound/initval.h>
147#include <sound/pcm.h>
148#include <sound/ac97_codec.h>
149#include <sound/info.h>
150
151MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
152MODULE_DESCRIPTION("CA0106");
153MODULE_LICENSE("GPL");
154MODULE_SUPPORTED_DEVICE("{{Creative,SB CA0106 chip}}");
155
156// module parameters (see "Module Parameters")
157static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
158static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
159static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
160static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
161
162module_param_array(index, int, NULL, 0444);
163MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
164module_param_array(id, charp, NULL, 0444);
165MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
166module_param_array(enable, bool, NULL, 0444);
167MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
168module_param_array(subsystem, uint, NULL, 0444);
169MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
170
171#include "ca0106.h"
172
173static struct snd_ca0106_details ca0106_chip_details[] = {
174	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
175	 /* It is really just a normal SB Live 24bit. */
176	 /* Tested:
177	  * See ALSA bug#3251
178	  */
179	 { .serial = 0x10131102,
180	   .name   = "X-Fi Extreme Audio [SBxxxx]",
181	   .gpio_type = 1,
182	   .i2c_adc = 1 } ,
183	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
184	 /* It is really just a normal SB Live 24bit. */
185	 /*
186 	  * CTRL:CA0111-WTLF
187	  * ADC: WM8775SEDS
188	  * DAC: CS4382-KQZ
189	  */
190	 /* Tested:
191	  * Playback on front, rear, center/lfe speakers
192	  * Capture from Mic in.
193	  * Not-Tested:
194	  * Capture from Line in.
195	  * Playback to digital out.
196	  */
197	 { .serial = 0x10121102,
198	   .name   = "X-Fi Extreme Audio [SB0790]",
199	   .gpio_type = 1,
200	   .i2c_adc = 1 } ,
201	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
202	 /* AudigyLS[SB0310] */
203	 { .serial = 0x10021102,
204	   .name   = "AudigyLS [SB0310]",
205	   .ac97   = 1 } ,
206	 /* Unknown AudigyLS that also says SB0310 on it */
207	 { .serial = 0x10051102,
208	   .name   = "AudigyLS [SB0310b]",
209	   .ac97   = 1 } ,
210	 /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
211	 { .serial = 0x10061102,
212	   .name   = "Live! 7.1 24bit [SB0410]",
213	   .gpio_type = 1,
214	   .i2c_adc = 1 } ,
215	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
216	 { .serial = 0x10071102,
217	   .name   = "Live! 7.1 24bit [SB0413]",
218	   .gpio_type = 1,
219	   .i2c_adc = 1 } ,
220	 /* New Audigy SE. Has a different DAC. */
221	 /* SB0570:
222	  * CTRL:CA0106-DAT
223	  * ADC: WM8775EDS
224	  * DAC: WM8768GEDS
225	  */
226	 { .serial = 0x100a1102,
227	   .name   = "Audigy SE [SB0570]",
228	   .gpio_type = 1,
229	   .i2c_adc = 1,
230	   .spi_dac = 1 } ,
231	 /* New Audigy LS. Has a different DAC. */
232	 /* SB0570:
233	  * CTRL:CA0106-DAT
234	  * ADC: WM8775EDS
235	  * DAC: WM8768GEDS
236	  */
237	 { .serial = 0x10111102,
238	   .name   = "Audigy SE OEM [SB0570a]",
239	   .gpio_type = 1,
240	   .i2c_adc = 1,
241	   .spi_dac = 1 } ,
242	 /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
243	 /* SB0438
244	  * CTRL:CA0106-DAT
245	  * ADC: WM8775SEDS
246	  * DAC: CS4382-KQZ
247	  */
248	 { .serial = 0x10091462,
249	   .name   = "MSI K8N Diamond MB [SB0438]",
250	   .gpio_type = 2,
251	   .i2c_adc = 1 } ,
252	 /* MSI K8N Diamond PLUS MB */
253	 { .serial = 0x10091102,
254	   .name   = "MSI K8N Diamond MB",
255	   .gpio_type = 2,
256	   .i2c_adc = 1,
257	   .spi_dac = 1 } ,
258	/* Giga-byte GA-G1975X mobo
259	 * Novell bnc#395807
260	 */
261	{ .serial = 0x1458a006,
262	  .name = "Giga-byte GA-G1975X",
263	  .gpio_type = 1,
264	  .i2c_adc = 1 },
265	 /* Shuttle XPC SD31P which has an onboard Creative Labs
266	  * Sound Blaster Live! 24-bit EAX
267	  * high-definition 7.1 audio processor".
268	  * Added using info from andrewvegan in alsa bug #1298
269	  */
270	 { .serial = 0x30381297,
271	   .name   = "Shuttle XPC SD31P [SD31P]",
272	   .gpio_type = 1,
273	   .i2c_adc = 1 } ,
274	/* Shuttle XPC SD11G5 which has an onboard Creative Labs
275	 * Sound Blaster Live! 24-bit EAX
276	 * high-definition 7.1 audio processor".
277	 * Fixes ALSA bug#1600
278         */
279	{ .serial = 0x30411297,
280	  .name = "Shuttle XPC SD11G5 [SD11G5]",
281	  .gpio_type = 1,
282	  .i2c_adc = 1 } ,
283	 { .serial = 0,
284	   .name   = "AudigyLS [Unknown]" }
285};
286
287/* hardware definition */
288static struct snd_pcm_hardware snd_ca0106_playback_hw = {
289	.info =			SNDRV_PCM_INFO_MMAP |
290				SNDRV_PCM_INFO_INTERLEAVED |
291				SNDRV_PCM_INFO_BLOCK_TRANSFER |
292				SNDRV_PCM_INFO_MMAP_VALID |
293				SNDRV_PCM_INFO_SYNC_START,
294	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
295	.rates =		(SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
296				 SNDRV_PCM_RATE_192000),
297	.rate_min =		48000,
298	.rate_max =		192000,
299	.channels_min =		2,  //1,
300	.channels_max =		2,  //6,
301	.buffer_bytes_max =	((65536 - 64) * 8),
302	.period_bytes_min =	64,
303	.period_bytes_max =	(65536 - 64),
304	.periods_min =		2,
305	.periods_max =		8,
306	.fifo_size =		0,
307};
308
309static struct snd_pcm_hardware snd_ca0106_capture_hw = {
310	.info =			(SNDRV_PCM_INFO_MMAP |
311				 SNDRV_PCM_INFO_INTERLEAVED |
312				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
313				 SNDRV_PCM_INFO_MMAP_VALID),
314	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
315	.rates =		(SNDRV_PCM_RATE_48000 |
316				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
317	.rate_min =		48000,
318	.rate_max =		192000,
319	.channels_min =		2,
320	.channels_max =		2,
321	.buffer_bytes_max =	65536 - 128,
322	.period_bytes_min =	64,
323	.period_bytes_max =	32768 - 64,
324	.periods_min =		2,
325	.periods_max =		2,
326	.fifo_size =		0,
327};
328
329unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
330					  unsigned int reg,
331					  unsigned int chn)
332{
333	unsigned long flags;
334	unsigned int regptr, val;
335
336	regptr = (reg << 16) | chn;
337
338	spin_lock_irqsave(&emu->emu_lock, flags);
339	outl(regptr, emu->port + PTR);
340	val = inl(emu->port + DATA);
341	spin_unlock_irqrestore(&emu->emu_lock, flags);
342	return val;
343}
344
345void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
346				   unsigned int reg,
347				   unsigned int chn,
348				   unsigned int data)
349{
350	unsigned int regptr;
351	unsigned long flags;
352
353	regptr = (reg << 16) | chn;
354
355	spin_lock_irqsave(&emu->emu_lock, flags);
356	outl(regptr, emu->port + PTR);
357	outl(data, emu->port + DATA);
358	spin_unlock_irqrestore(&emu->emu_lock, flags);
359}
360
361int snd_ca0106_spi_write(struct snd_ca0106 * emu,
362				   unsigned int data)
363{
364	unsigned int reset, set;
365	unsigned int reg, tmp;
366	int n, result;
367	reg = SPI;
368	if (data > 0xffff) /* Only 16bit values allowed */
369		return 1;
370	tmp = snd_ca0106_ptr_read(emu, reg, 0);
371	reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
372	set = reset | 0x10000; /* Set xxx1xxxx */
373	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
374	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
375	snd_ca0106_ptr_write(emu, reg, 0, set | data);
376	result = 1;
377	/* Wait for status bit to return to 0 */
378	for (n = 0; n < 100; n++) {
379		udelay(10);
380		tmp = snd_ca0106_ptr_read(emu, reg, 0);
381		if (!(tmp & 0x10000)) {
382			result = 0;
383			break;
384		}
385	}
386	if (result) /* Timed out */
387		return 1;
388	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
389	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
390	return 0;
391}
392
393/* The ADC does not support i2c read, so only write is implemented */
394int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
395				u32 reg,
396				u32 value)
397{
398	u32 tmp;
399	int timeout = 0;
400	int status;
401	int retry;
402	if ((reg > 0x7f) || (value > 0x1ff)) {
403		snd_printk(KERN_ERR "i2c_write: invalid values.\n");
404		return -EINVAL;
405	}
406
407	tmp = reg << 25 | value << 16;
408	/*
409	snd_printk(KERN_DEBUG "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
410	*/
411	/* Not sure what this I2C channel controls. */
412	/* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
413
414	/* This controls the I2C connected to the WM8775 ADC Codec */
415	snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
416
417	for (retry = 0; retry < 10; retry++) {
418		/* Send the data to i2c */
419		//tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
420		//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
421		tmp = 0;
422		tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
423		snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
424
425		/* Wait till the transaction ends */
426		while (1) {
427			status = snd_ca0106_ptr_read(emu, I2C_A, 0);
428			/*snd_printk(KERN_DEBUG "I2C:status=0x%x\n", status);*/
429			timeout++;
430			if ((status & I2C_A_ADC_START) == 0)
431				break;
432
433			if (timeout > 1000)
434				break;
435		}
436		//Read back and see if the transaction is successful
437		if ((status & I2C_A_ADC_ABORT) == 0)
438			break;
439	}
440
441	if (retry == 10) {
442		snd_printk(KERN_ERR "Writing to ADC failed!\n");
443		return -EINVAL;
444	}
445
446    	return 0;
447}
448
449
450static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
451{
452	unsigned long flags;
453	unsigned int intr_enable;
454
455	spin_lock_irqsave(&emu->emu_lock, flags);
456	intr_enable = inl(emu->port + INTE) | intrenb;
457	outl(intr_enable, emu->port + INTE);
458	spin_unlock_irqrestore(&emu->emu_lock, flags);
459}
460
461static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
462{
463	unsigned long flags;
464	unsigned int intr_enable;
465
466	spin_lock_irqsave(&emu->emu_lock, flags);
467	intr_enable = inl(emu->port + INTE) & ~intrenb;
468	outl(intr_enable, emu->port + INTE);
469	spin_unlock_irqrestore(&emu->emu_lock, flags);
470}
471
472
473static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
474{
475	kfree(runtime->private_data);
476}
477
478static const int spi_dacd_reg[] = {
479	[PCM_FRONT_CHANNEL]	= SPI_DACD4_REG,
480	[PCM_REAR_CHANNEL]	= SPI_DACD0_REG,
481	[PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG,
482	[PCM_UNKNOWN_CHANNEL]	= SPI_DACD1_REG,
483};
484static const int spi_dacd_bit[] = {
485	[PCM_FRONT_CHANNEL]	= SPI_DACD4_BIT,
486	[PCM_REAR_CHANNEL]	= SPI_DACD0_BIT,
487	[PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT,
488	[PCM_UNKNOWN_CHANNEL]	= SPI_DACD1_BIT,
489};
490
491static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
492{
493	if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
494		chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
495		snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
496				     chip->spdif_str_bits[idx]);
497	}
498}
499
500/* open_playback callback */
501static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
502						int channel_id)
503{
504	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
505        struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
506	struct snd_ca0106_pcm *epcm;
507	struct snd_pcm_runtime *runtime = substream->runtime;
508	int err;
509
510	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
511
512	if (epcm == NULL)
513		return -ENOMEM;
514	epcm->emu = chip;
515	epcm->substream = substream;
516        epcm->channel_id=channel_id;
517
518	runtime->private_data = epcm;
519	runtime->private_free = snd_ca0106_pcm_free_substream;
520
521	runtime->hw = snd_ca0106_playback_hw;
522
523        channel->emu = chip;
524        channel->number = channel_id;
525
526	channel->use = 1;
527	/*
528	printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
529	       channel_id, chip, channel);
530	*/
531        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
532	channel->epcm = epcm;
533	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
534                return err;
535	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
536                return err;
537	snd_pcm_set_sync(substream);
538
539	if (chip->details->spi_dac && channel_id != PCM_FRONT_CHANNEL) {
540		const int reg = spi_dacd_reg[channel_id];
541
542		/* Power up dac */
543		chip->spi_dac_reg[reg] &= ~spi_dacd_bit[channel_id];
544		err = snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
545		if (err < 0)
546			return err;
547	}
548
549	restore_spdif_bits(chip, channel_id);
550
551	return 0;
552}
553
554/* close callback */
555static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
556{
557	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
558	struct snd_pcm_runtime *runtime = substream->runtime;
559        struct snd_ca0106_pcm *epcm = runtime->private_data;
560	chip->playback_channels[epcm->channel_id].use = 0;
561
562	restore_spdif_bits(chip, epcm->channel_id);
563
564	if (chip->details->spi_dac && epcm->channel_id != PCM_FRONT_CHANNEL) {
565		const int reg = spi_dacd_reg[epcm->channel_id];
566
567		/* Power down DAC */
568		chip->spi_dac_reg[reg] |= spi_dacd_bit[epcm->channel_id];
569		snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
570	}
571	return 0;
572}
573
574static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
575{
576	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
577}
578
579static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
580{
581	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
582}
583
584static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
585{
586	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
587}
588
589static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
590{
591	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
592}
593
594/* open_capture callback */
595static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
596					       int channel_id)
597{
598	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
599        struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
600	struct snd_ca0106_pcm *epcm;
601	struct snd_pcm_runtime *runtime = substream->runtime;
602	int err;
603
604	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
605	if (epcm == NULL) {
606		snd_printk(KERN_ERR "open_capture_channel: failed epcm alloc\n");
607		return -ENOMEM;
608        }
609	epcm->emu = chip;
610	epcm->substream = substream;
611        epcm->channel_id=channel_id;
612
613	runtime->private_data = epcm;
614	runtime->private_free = snd_ca0106_pcm_free_substream;
615
616	runtime->hw = snd_ca0106_capture_hw;
617
618        channel->emu = chip;
619        channel->number = channel_id;
620
621	channel->use = 1;
622	/*
623        printk(KERN_DEBUG "open:channel_id=%d, chip=%p, channel=%p\n",
624	       channel_id, chip, channel);
625	*/
626        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
627        channel->epcm = epcm;
628	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
629                return err;
630	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
631	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
632                return err;
633	return 0;
634}
635
636/* close callback */
637static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
638{
639	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
640	struct snd_pcm_runtime *runtime = substream->runtime;
641        struct snd_ca0106_pcm *epcm = runtime->private_data;
642	chip->capture_channels[epcm->channel_id].use = 0;
643	return 0;
644}
645
646static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
647{
648	return snd_ca0106_pcm_open_capture_channel(substream, 0);
649}
650
651static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
652{
653	return snd_ca0106_pcm_open_capture_channel(substream, 1);
654}
655
656static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
657{
658	return snd_ca0106_pcm_open_capture_channel(substream, 2);
659}
660
661static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
662{
663	return snd_ca0106_pcm_open_capture_channel(substream, 3);
664}
665
666/* hw_params callback */
667static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
668				      struct snd_pcm_hw_params *hw_params)
669{
670	return snd_pcm_lib_malloc_pages(substream,
671					params_buffer_bytes(hw_params));
672}
673
674/* hw_free callback */
675static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
676{
677	return snd_pcm_lib_free_pages(substream);
678}
679
680/* hw_params callback */
681static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
682				      struct snd_pcm_hw_params *hw_params)
683{
684	return snd_pcm_lib_malloc_pages(substream,
685					params_buffer_bytes(hw_params));
686}
687
688/* hw_free callback */
689static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
690{
691	return snd_pcm_lib_free_pages(substream);
692}
693
694/* prepare playback callback */
695static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
696{
697	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
698	struct snd_pcm_runtime *runtime = substream->runtime;
699	struct snd_ca0106_pcm *epcm = runtime->private_data;
700	int channel = epcm->channel_id;
701	u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
702	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
703	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
704	u32 hcfg_set = 0x00000000;
705	u32 hcfg;
706	u32 reg40_mask = 0x30000 << (channel<<1);
707	u32 reg40_set = 0;
708	u32 reg40;
709	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
710	u32 reg71_set = 0;
711	u32 reg71;
712	int i;
713
714	/* Rate can be set per channel. */
715	/* reg40 control host to fifo */
716	/* reg71 controls DAC rate. */
717	switch (runtime->rate) {
718	case 44100:
719		reg40_set = 0x10000 << (channel<<1);
720		reg71_set = 0x01010000;
721		break;
722        case 48000:
723		reg40_set = 0;
724		reg71_set = 0;
725		break;
726	case 96000:
727		reg40_set = 0x20000 << (channel<<1);
728		reg71_set = 0x02020000;
729		break;
730	case 192000:
731		reg40_set = 0x30000 << (channel<<1);
732		reg71_set = 0x03030000;
733		break;
734	default:
735		reg40_set = 0;
736		reg71_set = 0;
737		break;
738	}
739	/* Format is a global setting */
740	switch (runtime->format) {
741	case SNDRV_PCM_FORMAT_S16_LE:
742		hcfg_set = 0;
743		break;
744	case SNDRV_PCM_FORMAT_S32_LE:
745		hcfg_set = HCFG_PLAYBACK_S32_LE;
746		break;
747	default:
748		hcfg_set = 0;
749		break;
750	}
751	hcfg = inl(emu->port + HCFG) ;
752	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
753	outl(hcfg, emu->port + HCFG);
754	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
755	reg40 = (reg40 & ~reg40_mask) | reg40_set;
756	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
757	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
758	reg71 = (reg71 & ~reg71_mask) | reg71_set;
759	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
760
761        for(i=0; i < runtime->periods; i++) {
762		table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
763		table_base[i*2+1] = period_size_bytes << 16;
764	}
765
766	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
767	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
768	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
769	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
770	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
771	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
772	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
773	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
774	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
775        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
776
777	return 0;
778}
779
780/* prepare capture callback */
781static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
782{
783	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
784	struct snd_pcm_runtime *runtime = substream->runtime;
785	struct snd_ca0106_pcm *epcm = runtime->private_data;
786	int channel = epcm->channel_id;
787	u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
788	u32 hcfg_set = 0x00000000;
789	u32 hcfg;
790	u32 over_sampling=0x2;
791	u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
792	u32 reg71_set = 0;
793	u32 reg71;
794
795	/* reg71 controls ADC rate. */
796	switch (runtime->rate) {
797	case 44100:
798		reg71_set = 0x00004000;
799		break;
800        case 48000:
801		reg71_set = 0;
802		break;
803	case 96000:
804		reg71_set = 0x00008000;
805		over_sampling=0xa;
806		break;
807	case 192000:
808		reg71_set = 0x0000c000;
809		over_sampling=0xa;
810		break;
811	default:
812		reg71_set = 0;
813		break;
814	}
815	/* Format is a global setting */
816	switch (runtime->format) {
817	case SNDRV_PCM_FORMAT_S16_LE:
818		hcfg_set = 0;
819		break;
820	case SNDRV_PCM_FORMAT_S32_LE:
821		hcfg_set = HCFG_CAPTURE_S32_LE;
822		break;
823	default:
824		hcfg_set = 0;
825		break;
826	}
827	hcfg = inl(emu->port + HCFG) ;
828	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
829	outl(hcfg, emu->port + HCFG);
830	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
831	reg71 = (reg71 & ~reg71_mask) | reg71_set;
832	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
833        if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
834	        snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
835	}
836
837
838	/*
839	printk(KERN_DEBUG
840	       "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
841	       "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
842	       channel, runtime->rate, runtime->format, runtime->channels,
843	       runtime->buffer_size, runtime->period_size,
844	       frames_to_bytes(runtime, 1));
845	*/
846	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
847	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
848	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
849	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
850
851	return 0;
852}
853
854/* trigger_playback callback */
855static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
856				    int cmd)
857{
858	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
859	struct snd_pcm_runtime *runtime;
860	struct snd_ca0106_pcm *epcm;
861	int channel;
862	int result = 0;
863        struct snd_pcm_substream *s;
864	u32 basic = 0;
865	u32 extended = 0;
866	u32 bits;
867	int running = 0;
868
869	switch (cmd) {
870	case SNDRV_PCM_TRIGGER_START:
871	case SNDRV_PCM_TRIGGER_RESUME:
872		running = 1;
873		break;
874	case SNDRV_PCM_TRIGGER_STOP:
875	case SNDRV_PCM_TRIGGER_SUSPEND:
876	default:
877		running = 0;
878		break;
879	}
880        snd_pcm_group_for_each_entry(s, substream) {
881		if (snd_pcm_substream_chip(s) != emu ||
882		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
883			continue;
884		runtime = s->runtime;
885		epcm = runtime->private_data;
886		channel = epcm->channel_id;
887		/* snd_printk(KERN_DEBUG "channel=%d\n", channel); */
888		epcm->running = running;
889		basic |= (0x1 << channel);
890		extended |= (0x10 << channel);
891                snd_pcm_trigger_done(s, substream);
892        }
893	/* snd_printk(KERN_DEBUG "basic=0x%x, extended=0x%x\n",basic, extended); */
894
895	switch (cmd) {
896	case SNDRV_PCM_TRIGGER_START:
897	case SNDRV_PCM_TRIGGER_RESUME:
898		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
899		bits |= extended;
900		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
901		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
902		bits |= basic;
903		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
904		break;
905	case SNDRV_PCM_TRIGGER_STOP:
906	case SNDRV_PCM_TRIGGER_SUSPEND:
907		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
908		bits &= ~basic;
909		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
910		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
911		bits &= ~extended;
912		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
913		break;
914	default:
915		result = -EINVAL;
916		break;
917	}
918	return result;
919}
920
921/* trigger_capture callback */
922static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
923				    int cmd)
924{
925	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
926	struct snd_pcm_runtime *runtime = substream->runtime;
927	struct snd_ca0106_pcm *epcm = runtime->private_data;
928	int channel = epcm->channel_id;
929	int result = 0;
930
931	switch (cmd) {
932	case SNDRV_PCM_TRIGGER_START:
933		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
934		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
935		epcm->running = 1;
936		break;
937	case SNDRV_PCM_TRIGGER_STOP:
938		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
939		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
940		epcm->running = 0;
941		break;
942	default:
943		result = -EINVAL;
944		break;
945	}
946	return result;
947}
948
949/* pointer_playback callback */
950static snd_pcm_uframes_t
951snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
952{
953	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
954	struct snd_pcm_runtime *runtime = substream->runtime;
955	struct snd_ca0106_pcm *epcm = runtime->private_data;
956	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
957	int channel = epcm->channel_id;
958
959	if (!epcm->running)
960		return 0;
961
962	ptr3 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
963	ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
964	ptr4 = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
965	if (ptr3 != ptr4) ptr1 = snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel);
966	ptr2 = bytes_to_frames(runtime, ptr1);
967	ptr2+= (ptr4 >> 3) * runtime->period_size;
968	ptr=ptr2;
969        if (ptr >= runtime->buffer_size)
970		ptr -= runtime->buffer_size;
971	/*
972	printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
973	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
974	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
975	       (int)runtime->period_size, (int)runtime->frame_bits,
976	       (int)runtime->rate);
977	*/
978	return ptr;
979}
980
981/* pointer_capture callback */
982static snd_pcm_uframes_t
983snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
984{
985	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
986	struct snd_pcm_runtime *runtime = substream->runtime;
987	struct snd_ca0106_pcm *epcm = runtime->private_data;
988	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
989	int channel = channel=epcm->channel_id;
990
991	if (!epcm->running)
992		return 0;
993
994	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
995	ptr2 = bytes_to_frames(runtime, ptr1);
996	ptr=ptr2;
997        if (ptr >= runtime->buffer_size)
998		ptr -= runtime->buffer_size;
999	/*
1000	printk(KERN_DEBUG "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1001	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1002	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
1003	       (int)runtime->period_size, (int)runtime->frame_bits,
1004	       (int)runtime->rate);
1005	*/
1006	return ptr;
1007}
1008
1009/* operators */
1010static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1011	.open =        snd_ca0106_pcm_open_playback_front,
1012	.close =       snd_ca0106_pcm_close_playback,
1013	.ioctl =       snd_pcm_lib_ioctl,
1014	.hw_params =   snd_ca0106_pcm_hw_params_playback,
1015	.hw_free =     snd_ca0106_pcm_hw_free_playback,
1016	.prepare =     snd_ca0106_pcm_prepare_playback,
1017	.trigger =     snd_ca0106_pcm_trigger_playback,
1018	.pointer =     snd_ca0106_pcm_pointer_playback,
1019};
1020
1021static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1022	.open =        snd_ca0106_pcm_open_0_capture,
1023	.close =       snd_ca0106_pcm_close_capture,
1024	.ioctl =       snd_pcm_lib_ioctl,
1025	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1026	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1027	.prepare =     snd_ca0106_pcm_prepare_capture,
1028	.trigger =     snd_ca0106_pcm_trigger_capture,
1029	.pointer =     snd_ca0106_pcm_pointer_capture,
1030};
1031
1032static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1033	.open =        snd_ca0106_pcm_open_1_capture,
1034	.close =       snd_ca0106_pcm_close_capture,
1035	.ioctl =       snd_pcm_lib_ioctl,
1036	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1037	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1038	.prepare =     snd_ca0106_pcm_prepare_capture,
1039	.trigger =     snd_ca0106_pcm_trigger_capture,
1040	.pointer =     snd_ca0106_pcm_pointer_capture,
1041};
1042
1043static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1044	.open =        snd_ca0106_pcm_open_2_capture,
1045	.close =       snd_ca0106_pcm_close_capture,
1046	.ioctl =       snd_pcm_lib_ioctl,
1047	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1048	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1049	.prepare =     snd_ca0106_pcm_prepare_capture,
1050	.trigger =     snd_ca0106_pcm_trigger_capture,
1051	.pointer =     snd_ca0106_pcm_pointer_capture,
1052};
1053
1054static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1055	.open =        snd_ca0106_pcm_open_3_capture,
1056	.close =       snd_ca0106_pcm_close_capture,
1057	.ioctl =       snd_pcm_lib_ioctl,
1058	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1059	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1060	.prepare =     snd_ca0106_pcm_prepare_capture,
1061	.trigger =     snd_ca0106_pcm_trigger_capture,
1062	.pointer =     snd_ca0106_pcm_pointer_capture,
1063};
1064
1065static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1066        .open =         snd_ca0106_pcm_open_playback_center_lfe,
1067        .close =        snd_ca0106_pcm_close_playback,
1068        .ioctl =        snd_pcm_lib_ioctl,
1069        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1070        .hw_free =      snd_ca0106_pcm_hw_free_playback,
1071        .prepare =      snd_ca0106_pcm_prepare_playback,
1072        .trigger =      snd_ca0106_pcm_trigger_playback,
1073        .pointer =      snd_ca0106_pcm_pointer_playback,
1074};
1075
1076static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1077        .open =         snd_ca0106_pcm_open_playback_unknown,
1078        .close =        snd_ca0106_pcm_close_playback,
1079        .ioctl =        snd_pcm_lib_ioctl,
1080        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1081        .hw_free =      snd_ca0106_pcm_hw_free_playback,
1082        .prepare =      snd_ca0106_pcm_prepare_playback,
1083        .trigger =      snd_ca0106_pcm_trigger_playback,
1084        .pointer =      snd_ca0106_pcm_pointer_playback,
1085};
1086
1087static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1088        .open =         snd_ca0106_pcm_open_playback_rear,
1089        .close =        snd_ca0106_pcm_close_playback,
1090        .ioctl =        snd_pcm_lib_ioctl,
1091        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1092		.hw_free =      snd_ca0106_pcm_hw_free_playback,
1093        .prepare =      snd_ca0106_pcm_prepare_playback,
1094        .trigger =      snd_ca0106_pcm_trigger_playback,
1095        .pointer =      snd_ca0106_pcm_pointer_playback,
1096};
1097
1098
1099static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1100					     unsigned short reg)
1101{
1102	struct snd_ca0106 *emu = ac97->private_data;
1103	unsigned long flags;
1104	unsigned short val;
1105
1106	spin_lock_irqsave(&emu->emu_lock, flags);
1107	outb(reg, emu->port + AC97ADDRESS);
1108	val = inw(emu->port + AC97DATA);
1109	spin_unlock_irqrestore(&emu->emu_lock, flags);
1110	return val;
1111}
1112
1113static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1114				    unsigned short reg, unsigned short val)
1115{
1116	struct snd_ca0106 *emu = ac97->private_data;
1117	unsigned long flags;
1118
1119	spin_lock_irqsave(&emu->emu_lock, flags);
1120	outb(reg, emu->port + AC97ADDRESS);
1121	outw(val, emu->port + AC97DATA);
1122	spin_unlock_irqrestore(&emu->emu_lock, flags);
1123}
1124
1125static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1126{
1127	struct snd_ac97_bus *pbus;
1128	struct snd_ac97_template ac97;
1129	int err;
1130	static struct snd_ac97_bus_ops ops = {
1131		.write = snd_ca0106_ac97_write,
1132		.read = snd_ca0106_ac97_read,
1133	};
1134
1135	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1136		return err;
1137	pbus->no_vra = 1; /* we don't need VRA */
1138
1139	memset(&ac97, 0, sizeof(ac97));
1140	ac97.private_data = chip;
1141	ac97.scaps = AC97_SCAP_NO_SPDIF;
1142	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1143}
1144
1145static void ca0106_stop_chip(struct snd_ca0106 *chip);
1146
1147static int snd_ca0106_free(struct snd_ca0106 *chip)
1148{
1149	if (chip->res_port != NULL) {
1150		/* avoid access to already used hardware */
1151		ca0106_stop_chip(chip);
1152	}
1153	if (chip->irq >= 0)
1154		free_irq(chip->irq, chip);
1155	// release the data
1156	if (chip->buffer.area)
1157		snd_dma_free_pages(&chip->buffer);
1158
1159	// release the i/o port
1160	release_and_free_resource(chip->res_port);
1161
1162	pci_disable_device(chip->pci);
1163	kfree(chip);
1164	return 0;
1165}
1166
1167static int snd_ca0106_dev_free(struct snd_device *device)
1168{
1169	struct snd_ca0106 *chip = device->device_data;
1170	return snd_ca0106_free(chip);
1171}
1172
1173static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1174{
1175	unsigned int status;
1176
1177	struct snd_ca0106 *chip = dev_id;
1178	int i;
1179	int mask;
1180        unsigned int stat76;
1181	struct snd_ca0106_channel *pchannel;
1182
1183	status = inl(chip->port + IPR);
1184	if (! status)
1185		return IRQ_NONE;
1186
1187        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1188	/*
1189	snd_printk(KERN_DEBUG "interrupt status = 0x%08x, stat76=0x%08x\n",
1190		   status, stat76);
1191	snd_printk(KERN_DEBUG "ptr=0x%08x\n",
1192		   snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1193	*/
1194        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1195	for(i = 0; i < 4; i++) {
1196		pchannel = &(chip->playback_channels[i]);
1197		if (stat76 & mask) {
1198			if(pchannel->use) {
1199				snd_pcm_period_elapsed(pchannel->epcm->substream);
1200				//printk(KERN_INFO "interrupt [%d] used\n", i);
1201                        }
1202		}
1203	        //printk(KERN_INFO "channel=%p\n",pchannel);
1204	        //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1205		mask <<= 1;
1206	}
1207        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1208	for(i = 0; i < 4; i++) {
1209		pchannel = &(chip->capture_channels[i]);
1210		if (stat76 & mask) {
1211			if(pchannel->use) {
1212				snd_pcm_period_elapsed(pchannel->epcm->substream);
1213				//printk(KERN_INFO "interrupt [%d] used\n", i);
1214                        }
1215		}
1216	        //printk(KERN_INFO "channel=%p\n",pchannel);
1217	        //printk(KERN_INFO "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1218		mask <<= 1;
1219	}
1220
1221        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1222
1223	if (chip->midi.dev_id &&
1224	    (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1225		if (chip->midi.interrupt)
1226			chip->midi.interrupt(&chip->midi, status);
1227		else
1228			chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1229	}
1230
1231	// acknowledge the interrupt if necessary
1232	outl(status, chip->port+IPR);
1233
1234	return IRQ_HANDLED;
1235}
1236
1237static int __devinit snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1238{
1239	struct snd_pcm *pcm;
1240	struct snd_pcm_substream *substream;
1241	int err;
1242
1243	err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1244	if (err < 0)
1245		return err;
1246
1247	pcm->private_data = emu;
1248
1249	switch (device) {
1250	case 0:
1251	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1252	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1253          break;
1254	case 1:
1255	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1256	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1257          break;
1258	case 2:
1259	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1260	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1261          break;
1262	case 3:
1263	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1264	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1265          break;
1266        }
1267
1268	pcm->info_flags = 0;
1269	strcpy(pcm->name, "CA0106");
1270
1271	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1272	    substream;
1273	    substream = substream->next) {
1274		if ((err = snd_pcm_lib_preallocate_pages(substream,
1275							 SNDRV_DMA_TYPE_DEV,
1276							 snd_dma_pci_data(emu->pci),
1277							 64*1024, 64*1024)) < 0)
1278			return err;
1279	}
1280
1281	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1282	      substream;
1283	      substream = substream->next) {
1284 		if ((err = snd_pcm_lib_preallocate_pages(substream,
1285	                                           SNDRV_DMA_TYPE_DEV,
1286	                                           snd_dma_pci_data(emu->pci),
1287	                                           64*1024, 64*1024)) < 0)
1288			return err;
1289	}
1290
1291	emu->pcm[device] = pcm;
1292
1293	return 0;
1294}
1295
1296#define SPI_REG(reg, value)	(((reg) << SPI_REG_SHIFT) | (value))
1297static unsigned int spi_dac_init[] = {
1298	SPI_REG(SPI_LDA1_REG,	SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1299	SPI_REG(SPI_RDA1_REG,	SPI_DA_BIT_0dB),
1300	SPI_REG(SPI_PL_REG,	SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1301	SPI_REG(SPI_FMT_REG,	SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1302	SPI_REG(SPI_LDA2_REG,	SPI_DA_BIT_0dB),
1303	SPI_REG(SPI_RDA2_REG,	SPI_DA_BIT_0dB),
1304	SPI_REG(SPI_LDA3_REG,	SPI_DA_BIT_0dB),
1305	SPI_REG(SPI_RDA3_REG,	SPI_DA_BIT_0dB),
1306	SPI_REG(SPI_MASTDA_REG,	SPI_DA_BIT_0dB),
1307	SPI_REG(9,		0x00),
1308	SPI_REG(SPI_MS_REG,	SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1309	SPI_REG(12,		0x00),
1310	SPI_REG(SPI_LDA4_REG,	SPI_DA_BIT_0dB),
1311	SPI_REG(SPI_RDA4_REG,	SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1312	SPI_REG(SPI_DACD4_REG,	0x00),
1313};
1314
1315static unsigned int i2c_adc_init[][2] = {
1316	{ 0x17, 0x00 }, /* Reset */
1317	{ 0x07, 0x00 }, /* Timeout */
1318	{ 0x0b, 0x22 },  /* Interface control */
1319	{ 0x0c, 0x22 },  /* Master mode control */
1320	{ 0x0d, 0x08 },  /* Powerdown control */
1321	{ 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1322	{ 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1323	{ 0x10, 0x7b },  /* ALC Control 1 */
1324	{ 0x11, 0x00 },  /* ALC Control 2 */
1325	{ 0x12, 0x32 },  /* ALC Control 3 */
1326	{ 0x13, 0x00 },  /* Noise gate control */
1327	{ 0x14, 0xa6 },  /* Limiter control */
1328	{ 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1329};
1330
1331static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1332{
1333	int ch;
1334	unsigned int def_bits;
1335
1336	outl(0, chip->port + INTE);
1337
1338	/*
1339	 *  Init to 0x02109204 :
1340	 *  Clock accuracy    = 0     (1000ppm)
1341	 *  Sample Rate       = 2     (48kHz)
1342	 *  Audio Channel     = 1     (Left of 2)
1343	 *  Source Number     = 0     (Unspecified)
1344	 *  Generation Status = 1     (Original for Cat Code 12)
1345	 *  Cat Code          = 12    (Digital Signal Mixer)
1346	 *  Mode              = 0     (Mode 0)
1347	 *  Emphasis          = 0     (None)
1348	 *  CP                = 1     (Copyright unasserted)
1349	 *  AN                = 0     (Audio data)
1350	 *  P                 = 0     (Consumer)
1351	 */
1352	def_bits =
1353		SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1354		SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1355		SPCS_GENERATIONSTATUS | 0x00001200 |
1356		0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1357	if (!resume) {
1358		chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1359		chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1360		chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1361		chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1362	}
1363	/* Only SPCS1 has been tested */
1364	snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1365	snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1366	snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1367	snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1368
1369        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1370        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1371
1372        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1373        outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1374        outw(0x8000, chip->port + AC97DATA);
1375
1376	/* OSS drivers set this. */
1377	/* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1378
1379	/* Analog or Digital output */
1380	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1381	/* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1382	 * Use 0x000f0000 for surround71
1383	 */
1384	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1385
1386	chip->spdif_enable = 0; /* Set digital SPDIF output off */
1387	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1388	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1389
1390	/* goes to 0x40c80000 when doing SPDIF IN/OUT */
1391	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1392	/* (Mute) CAPTURE feedback into PLAYBACK volume.
1393	 * Only lower 16 bits matter.
1394	 */
1395	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1396	/* SPDIF IN Volume */
1397	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1398	/* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1399	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1400
1401	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1402	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1403	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1404	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1405
1406	for (ch = 0; ch < 4; ch++) {
1407		/* Only high 16 bits matter */
1408		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1409		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1410	}
1411	if (chip->details->i2c_adc == 1) {
1412	        /* Select MIC, Line in, TAD in, AUX in */
1413	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1414		/* Default to CAPTURE_SOURCE to i2s in */
1415		if (!resume)
1416			chip->capture_source = 3;
1417	} else if (chip->details->ac97 == 1) {
1418	        /* Default to AC97 in */
1419	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1420		/* Default to CAPTURE_SOURCE to AC97 in */
1421		if (!resume)
1422			chip->capture_source = 4;
1423	} else {
1424	        /* Select MIC, Line in, TAD in, AUX in */
1425	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1426		/* Default to Set CAPTURE_SOURCE to i2s in */
1427		if (!resume)
1428			chip->capture_source = 3;
1429	}
1430
1431	if (chip->details->gpio_type == 2) {
1432		/* The SB0438 use GPIO differently. */
1433		outl(0x0, chip->port+GPIO);
1434		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1435		outl(0x005f5301, chip->port+GPIO); /* Analog */
1436	} else if (chip->details->gpio_type == 1) {
1437		/* The SB0410 and SB0413 use GPIO differently. */
1438		outl(0x0, chip->port+GPIO);
1439		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1440		outl(0x005f5301, chip->port+GPIO); /* Analog */
1441	} else {
1442		outl(0x0, chip->port+GPIO);
1443		outl(0x005f03a3, chip->port+GPIO); /* Analog */
1444		/* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1445	}
1446	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1447
1448	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1449	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1450	/* outl(0x00001409, chip->port+HCFG); */
1451	/* outl(0x00000009, chip->port+HCFG); */
1452	/* AC97 2.0, Enable outputs. */
1453	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1454
1455	if (chip->details->i2c_adc == 1) {
1456		/* The SB0410 and SB0413 use I2C to control ADC. */
1457		int size, n;
1458
1459		size = ARRAY_SIZE(i2c_adc_init);
1460		/* snd_printk(KERN_DEBUG "I2C:array size=0x%x\n", size); */
1461		for (n = 0; n < size; n++)
1462			snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1463					     i2c_adc_init[n][1]);
1464		for (n = 0; n < 4; n++) {
1465			chip->i2c_capture_volume[n][0] = 0xcf;
1466			chip->i2c_capture_volume[n][1] = 0xcf;
1467		}
1468		chip->i2c_capture_source = 2; /* Line in */
1469		/* Enable Line-in capture. MIC in currently untested. */
1470		/* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1471	}
1472
1473	if (chip->details->spi_dac == 1) {
1474		/* The SB0570 use SPI to control DAC. */
1475		int size, n;
1476
1477		size = ARRAY_SIZE(spi_dac_init);
1478		for (n = 0; n < size; n++) {
1479			int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1480
1481			snd_ca0106_spi_write(chip, spi_dac_init[n]);
1482			if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1483				chip->spi_dac_reg[reg] = spi_dac_init[n];
1484		}
1485	}
1486}
1487
1488static void ca0106_stop_chip(struct snd_ca0106 *chip)
1489{
1490	/* disable interrupts */
1491	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1492	outl(0, chip->port + INTE);
1493	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1494	udelay(1000);
1495	/* disable audio */
1496	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1497	outl(0, chip->port + HCFG);
1498}
1499
1500static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
1501					 struct pci_dev *pci,
1502					 struct snd_ca0106 **rchip)
1503{
1504	struct snd_ca0106 *chip;
1505	struct snd_ca0106_details *c;
1506	int err;
1507	static struct snd_device_ops ops = {
1508		.dev_free = snd_ca0106_dev_free,
1509	};
1510
1511	*rchip = NULL;
1512
1513	err = pci_enable_device(pci);
1514	if (err < 0)
1515		return err;
1516	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1517	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1518		printk(KERN_ERR "error to set 32bit mask DMA\n");
1519		pci_disable_device(pci);
1520		return -ENXIO;
1521	}
1522
1523	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1524	if (chip == NULL) {
1525		pci_disable_device(pci);
1526		return -ENOMEM;
1527	}
1528
1529	chip->card = card;
1530	chip->pci = pci;
1531	chip->irq = -1;
1532
1533	spin_lock_init(&chip->emu_lock);
1534
1535	chip->port = pci_resource_start(pci, 0);
1536	chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1537	if (!chip->res_port) {
1538		snd_ca0106_free(chip);
1539		printk(KERN_ERR "cannot allocate the port\n");
1540		return -EBUSY;
1541	}
1542
1543	if (request_irq(pci->irq, snd_ca0106_interrupt,
1544			IRQF_SHARED, "snd_ca0106", chip)) {
1545		snd_ca0106_free(chip);
1546		printk(KERN_ERR "cannot grab irq\n");
1547		return -EBUSY;
1548	}
1549	chip->irq = pci->irq;
1550
1551	/* This stores the periods table. */
1552	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1553				1024, &chip->buffer) < 0) {
1554		snd_ca0106_free(chip);
1555		return -ENOMEM;
1556	}
1557
1558	pci_set_master(pci);
1559	/* read serial */
1560	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1561	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1562	printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n",
1563	       chip->model, pci->revision, chip->serial);
1564	strcpy(card->driver, "CA0106");
1565	strcpy(card->shortname, "CA0106");
1566
1567	for (c = ca0106_chip_details; c->serial; c++) {
1568		if (subsystem[dev]) {
1569			if (c->serial == subsystem[dev])
1570				break;
1571		} else if (c->serial == chip->serial)
1572			break;
1573	}
1574	chip->details = c;
1575	if (subsystem[dev]) {
1576		printk(KERN_INFO "snd-ca0106: Sound card name=%s, "
1577		       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1578		       c->name, chip->serial, subsystem[dev]);
1579	}
1580
1581	sprintf(card->longname, "%s at 0x%lx irq %i",
1582		c->name, chip->port, chip->irq);
1583
1584	ca0106_init_chip(chip, 0);
1585
1586	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1587	if (err < 0) {
1588		snd_ca0106_free(chip);
1589		return err;
1590	}
1591	*rchip = chip;
1592	return 0;
1593}
1594
1595
1596static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1597{
1598	snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1599}
1600
1601static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1602{
1603	snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1604}
1605
1606static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1607{
1608	return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1609						  midi->port + idx, 0);
1610}
1611
1612static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1613{
1614	snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1615}
1616
1617static struct snd_card *ca0106_dev_id_card(void *dev_id)
1618{
1619	return ((struct snd_ca0106 *)dev_id)->card;
1620}
1621
1622static int ca0106_dev_id_port(void *dev_id)
1623{
1624	return ((struct snd_ca0106 *)dev_id)->port;
1625}
1626
1627static int __devinit snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1628{
1629	struct snd_ca_midi *midi;
1630	char *name;
1631	int err;
1632
1633	if (channel == CA0106_MIDI_CHAN_B) {
1634		name = "CA0106 MPU-401 (UART) B";
1635		midi =  &chip->midi2;
1636		midi->tx_enable = INTE_MIDI_TX_B;
1637		midi->rx_enable = INTE_MIDI_RX_B;
1638		midi->ipr_tx = IPR_MIDI_TX_B;
1639		midi->ipr_rx = IPR_MIDI_RX_B;
1640		midi->port = MIDI_UART_B_DATA;
1641	} else {
1642		name = "CA0106 MPU-401 (UART)";
1643		midi =  &chip->midi;
1644		midi->tx_enable = INTE_MIDI_TX_A;
1645		midi->rx_enable = INTE_MIDI_TX_B;
1646		midi->ipr_tx = IPR_MIDI_TX_A;
1647		midi->ipr_rx = IPR_MIDI_RX_A;
1648		midi->port = MIDI_UART_A_DATA;
1649	}
1650
1651	midi->reset = CA0106_MPU401_RESET;
1652	midi->enter_uart = CA0106_MPU401_ENTER_UART;
1653	midi->ack = CA0106_MPU401_ACK;
1654
1655	midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1656	midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1657
1658	midi->channel = channel;
1659
1660	midi->interrupt_enable = ca0106_midi_interrupt_enable;
1661	midi->interrupt_disable = ca0106_midi_interrupt_disable;
1662
1663	midi->read = ca0106_midi_read;
1664	midi->write = ca0106_midi_write;
1665
1666	midi->get_dev_id_card = ca0106_dev_id_card;
1667	midi->get_dev_id_port = ca0106_dev_id_port;
1668
1669	midi->dev_id = chip;
1670
1671	if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1672		return err;
1673
1674	return 0;
1675}
1676
1677
1678static int __devinit snd_ca0106_probe(struct pci_dev *pci,
1679					const struct pci_device_id *pci_id)
1680{
1681	static int dev;
1682	struct snd_card *card;
1683	struct snd_ca0106 *chip;
1684	int i, err;
1685
1686	if (dev >= SNDRV_CARDS)
1687		return -ENODEV;
1688	if (!enable[dev]) {
1689		dev++;
1690		return -ENOENT;
1691	}
1692
1693	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1694	if (err < 0)
1695		return err;
1696
1697	err = snd_ca0106_create(dev, card, pci, &chip);
1698	if (err < 0)
1699		goto error;
1700	card->private_data = chip;
1701
1702	for (i = 0; i < 4; i++) {
1703		err = snd_ca0106_pcm(chip, i);
1704		if (err < 0)
1705			goto error;
1706	}
1707
1708	if (chip->details->ac97 == 1) {
1709		/* The SB0410 and SB0413 do not have an AC97 chip. */
1710		err = snd_ca0106_ac97(chip);
1711		if (err < 0)
1712			goto error;
1713	}
1714	err = snd_ca0106_mixer(chip);
1715	if (err < 0)
1716		goto error;
1717
1718	snd_printdd("ca0106: probe for MIDI channel A ...");
1719	err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1720	if (err < 0)
1721		goto error;
1722	snd_printdd(" done.\n");
1723
1724#ifdef CONFIG_PROC_FS
1725	snd_ca0106_proc_init(chip);
1726#endif
1727
1728	snd_card_set_dev(card, &pci->dev);
1729
1730	err = snd_card_register(card);
1731	if (err < 0)
1732		goto error;
1733
1734	pci_set_drvdata(pci, card);
1735	dev++;
1736	return 0;
1737
1738 error:
1739	snd_card_free(card);
1740	return err;
1741}
1742
1743static void __devexit snd_ca0106_remove(struct pci_dev *pci)
1744{
1745	snd_card_free(pci_get_drvdata(pci));
1746	pci_set_drvdata(pci, NULL);
1747}
1748
1749#ifdef CONFIG_PM
1750static int snd_ca0106_suspend(struct pci_dev *pci, pm_message_t state)
1751{
1752	struct snd_card *card = pci_get_drvdata(pci);
1753	struct snd_ca0106 *chip = card->private_data;
1754	int i;
1755
1756	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1757	for (i = 0; i < 4; i++)
1758		snd_pcm_suspend_all(chip->pcm[i]);
1759	if (chip->details->ac97)
1760		snd_ac97_suspend(chip->ac97);
1761	snd_ca0106_mixer_suspend(chip);
1762
1763	ca0106_stop_chip(chip);
1764
1765	pci_disable_device(pci);
1766	pci_save_state(pci);
1767	pci_set_power_state(pci, pci_choose_state(pci, state));
1768	return 0;
1769}
1770
1771static int snd_ca0106_resume(struct pci_dev *pci)
1772{
1773	struct snd_card *card = pci_get_drvdata(pci);
1774	struct snd_ca0106 *chip = card->private_data;
1775	int i;
1776
1777	pci_set_power_state(pci, PCI_D0);
1778	pci_restore_state(pci);
1779
1780	if (pci_enable_device(pci) < 0) {
1781		snd_card_disconnect(card);
1782		return -EIO;
1783	}
1784
1785	pci_set_master(pci);
1786
1787	ca0106_init_chip(chip, 1);
1788
1789	if (chip->details->ac97)
1790		snd_ac97_resume(chip->ac97);
1791	snd_ca0106_mixer_resume(chip);
1792	if (chip->details->spi_dac) {
1793		for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1794			snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1795	}
1796
1797	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1798	return 0;
1799}
1800#endif
1801
1802// PCI IDs
1803static DEFINE_PCI_DEVICE_TABLE(snd_ca0106_ids) = {
1804	{ PCI_VDEVICE(CREATIVE, 0x0007), 0 },	/* Audigy LS or Live 24bit */
1805	{ 0, }
1806};
1807MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1808
1809// pci_driver definition
1810static struct pci_driver driver = {
1811	.name = "CA0106",
1812	.id_table = snd_ca0106_ids,
1813	.probe = snd_ca0106_probe,
1814	.remove = __devexit_p(snd_ca0106_remove),
1815#ifdef CONFIG_PM
1816	.suspend = snd_ca0106_suspend,
1817	.resume = snd_ca0106_resume,
1818#endif
1819};
1820
1821// initialization of the module
1822static int __init alsa_card_ca0106_init(void)
1823{
1824	return pci_register_driver(&driver);
1825}
1826
1827// clean up the module
1828static void __exit alsa_card_ca0106_exit(void)
1829{
1830	pci_unregister_driver(&driver);
1831}
1832
1833module_init(alsa_card_ca0106_init)
1834module_exit(alsa_card_ca0106_exit)
1835