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 initially 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/module.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 bool 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 = 0x4021 } ,
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 = 0x4021 } ,
242	/* Sound Blaster 5.1vx
243	 * Tested: Playback on front, rear, center/lfe speakers
244	 * Not-Tested: Capture
245	 */
246	{ .serial = 0x10041102,
247	  .name   = "Sound Blaster 5.1vx [SB1070]",
248	  .gpio_type = 1,
249	  .i2c_adc = 0,
250	  .spi_dac = 0x0124
251	 } ,
252	 /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
253	 /* SB0438
254	  * CTRL:CA0106-DAT
255	  * ADC: WM8775SEDS
256	  * DAC: CS4382-KQZ
257	  */
258	 { .serial = 0x10091462,
259	   .name   = "MSI K8N Diamond MB [SB0438]",
260	   .gpio_type = 2,
261	   .i2c_adc = 1 } ,
262	 /* MSI K8N Diamond PLUS MB */
263	 { .serial = 0x10091102,
264	   .name   = "MSI K8N Diamond MB",
265	   .gpio_type = 2,
266	   .i2c_adc = 1,
267	   .spi_dac = 0x4021 } ,
268	/* Giga-byte GA-G1975X mobo
269	 * Novell bnc#395807
270	 */
271	/* FIXME: the GPIO and I2C setting aren't tested well */
272	{ .serial = 0x1458a006,
273	  .name = "Giga-byte GA-G1975X",
274	  .gpio_type = 1,
275	  .i2c_adc = 1 },
276	 /* Shuttle XPC SD31P which has an onboard Creative Labs
277	  * Sound Blaster Live! 24-bit EAX
278	  * high-definition 7.1 audio processor".
279	  * Added using info from andrewvegan in alsa bug #1298
280	  */
281	 { .serial = 0x30381297,
282	   .name   = "Shuttle XPC SD31P [SD31P]",
283	   .gpio_type = 1,
284	   .i2c_adc = 1 } ,
285	/* Shuttle XPC SD11G5 which has an onboard Creative Labs
286	 * Sound Blaster Live! 24-bit EAX
287	 * high-definition 7.1 audio processor".
288	 * Fixes ALSA bug#1600
289         */
290	{ .serial = 0x30411297,
291	  .name = "Shuttle XPC SD11G5 [SD11G5]",
292	  .gpio_type = 1,
293	  .i2c_adc = 1 } ,
294	 { .serial = 0,
295	   .name   = "AudigyLS [Unknown]" }
296};
297
298/* hardware definition */
299static struct snd_pcm_hardware snd_ca0106_playback_hw = {
300	.info =			SNDRV_PCM_INFO_MMAP |
301				SNDRV_PCM_INFO_INTERLEAVED |
302				SNDRV_PCM_INFO_BLOCK_TRANSFER |
303				SNDRV_PCM_INFO_MMAP_VALID |
304				SNDRV_PCM_INFO_SYNC_START,
305	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
306	.rates =		(SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
307				 SNDRV_PCM_RATE_192000),
308	.rate_min =		48000,
309	.rate_max =		192000,
310	.channels_min =		2,  //1,
311	.channels_max =		2,  //6,
312	.buffer_bytes_max =	((65536 - 64) * 8),
313	.period_bytes_min =	64,
314	.period_bytes_max =	(65536 - 64),
315	.periods_min =		2,
316	.periods_max =		8,
317	.fifo_size =		0,
318};
319
320static struct snd_pcm_hardware snd_ca0106_capture_hw = {
321	.info =			(SNDRV_PCM_INFO_MMAP |
322				 SNDRV_PCM_INFO_INTERLEAVED |
323				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
324				 SNDRV_PCM_INFO_MMAP_VALID),
325	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
326#if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
327	.rates =		(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
328				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
329	.rate_min =		44100,
330#else
331	.rates =		(SNDRV_PCM_RATE_48000 |
332				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
333	.rate_min =		48000,
334#endif /* FIXME */
335	.rate_max =		192000,
336	.channels_min =		2,
337	.channels_max =		2,
338	.buffer_bytes_max =	65536 - 128,
339	.period_bytes_min =	64,
340	.period_bytes_max =	32768 - 64,
341	.periods_min =		2,
342	.periods_max =		2,
343	.fifo_size =		0,
344};
345
346unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
347					  unsigned int reg,
348					  unsigned int chn)
349{
350	unsigned long flags;
351	unsigned int regptr, val;
352
353	regptr = (reg << 16) | chn;
354
355	spin_lock_irqsave(&emu->emu_lock, flags);
356	outl(regptr, emu->port + PTR);
357	val = inl(emu->port + DATA);
358	spin_unlock_irqrestore(&emu->emu_lock, flags);
359	return val;
360}
361
362void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
363				   unsigned int reg,
364				   unsigned int chn,
365				   unsigned int data)
366{
367	unsigned int regptr;
368	unsigned long flags;
369
370	regptr = (reg << 16) | chn;
371
372	spin_lock_irqsave(&emu->emu_lock, flags);
373	outl(regptr, emu->port + PTR);
374	outl(data, emu->port + DATA);
375	spin_unlock_irqrestore(&emu->emu_lock, flags);
376}
377
378int snd_ca0106_spi_write(struct snd_ca0106 * emu,
379				   unsigned int data)
380{
381	unsigned int reset, set;
382	unsigned int reg, tmp;
383	int n, result;
384	reg = SPI;
385	if (data > 0xffff) /* Only 16bit values allowed */
386		return 1;
387	tmp = snd_ca0106_ptr_read(emu, reg, 0);
388	reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
389	set = reset | 0x10000; /* Set xxx1xxxx */
390	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
391	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
392	snd_ca0106_ptr_write(emu, reg, 0, set | data);
393	result = 1;
394	/* Wait for status bit to return to 0 */
395	for (n = 0; n < 100; n++) {
396		udelay(10);
397		tmp = snd_ca0106_ptr_read(emu, reg, 0);
398		if (!(tmp & 0x10000)) {
399			result = 0;
400			break;
401		}
402	}
403	if (result) /* Timed out */
404		return 1;
405	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
406	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
407	return 0;
408}
409
410/* The ADC does not support i2c read, so only write is implemented */
411int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
412				u32 reg,
413				u32 value)
414{
415	u32 tmp;
416	int timeout = 0;
417	int status;
418	int retry;
419	if ((reg > 0x7f) || (value > 0x1ff)) {
420		dev_err(emu->card->dev, "i2c_write: invalid values.\n");
421		return -EINVAL;
422	}
423
424	tmp = reg << 25 | value << 16;
425	/*
426	dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
427	*/
428	/* Not sure what this I2C channel controls. */
429	/* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
430
431	/* This controls the I2C connected to the WM8775 ADC Codec */
432	snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
433
434	for (retry = 0; retry < 10; retry++) {
435		/* Send the data to i2c */
436		//tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
437		//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
438		tmp = 0;
439		tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
440		snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
441
442		/* Wait till the transaction ends */
443		while (1) {
444			status = snd_ca0106_ptr_read(emu, I2C_A, 0);
445			/*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
446			timeout++;
447			if ((status & I2C_A_ADC_START) == 0)
448				break;
449
450			if (timeout > 1000)
451				break;
452		}
453		//Read back and see if the transaction is successful
454		if ((status & I2C_A_ADC_ABORT) == 0)
455			break;
456	}
457
458	if (retry == 10) {
459		dev_err(emu->card->dev, "Writing to ADC failed!\n");
460		return -EINVAL;
461	}
462
463    	return 0;
464}
465
466
467static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
468{
469	unsigned long flags;
470	unsigned int intr_enable;
471
472	spin_lock_irqsave(&emu->emu_lock, flags);
473	intr_enable = inl(emu->port + INTE) | intrenb;
474	outl(intr_enable, emu->port + INTE);
475	spin_unlock_irqrestore(&emu->emu_lock, flags);
476}
477
478static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
479{
480	unsigned long flags;
481	unsigned int intr_enable;
482
483	spin_lock_irqsave(&emu->emu_lock, flags);
484	intr_enable = inl(emu->port + INTE) & ~intrenb;
485	outl(intr_enable, emu->port + INTE);
486	spin_unlock_irqrestore(&emu->emu_lock, flags);
487}
488
489
490static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
491{
492	kfree(runtime->private_data);
493}
494
495static const int spi_dacd_reg[] = {
496	SPI_DACD0_REG,
497	SPI_DACD1_REG,
498	SPI_DACD2_REG,
499	0,
500	SPI_DACD4_REG,
501};
502static const int spi_dacd_bit[] = {
503	SPI_DACD0_BIT,
504	SPI_DACD1_BIT,
505	SPI_DACD2_BIT,
506	0,
507	SPI_DACD4_BIT,
508};
509
510static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
511{
512	if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
513		chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
514		snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
515				     chip->spdif_str_bits[idx]);
516	}
517}
518
519static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
520				  struct snd_ca0106_details *details,
521				  int channel_id)
522{
523	switch (channel_id) {
524	case PCM_FRONT_CHANNEL:
525		return (details->spi_dac & 0xf000) >> (4 * 3);
526	case PCM_REAR_CHANNEL:
527		return (details->spi_dac & 0x0f00) >> (4 * 2);
528	case PCM_CENTER_LFE_CHANNEL:
529		return (details->spi_dac & 0x00f0) >> (4 * 1);
530	case PCM_UNKNOWN_CHANNEL:
531		return (details->spi_dac & 0x000f) >> (4 * 0);
532	default:
533		dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
534			   channel_id);
535	}
536	return 0;
537}
538
539static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
540				    int power)
541{
542	if (chip->details->spi_dac) {
543		const int dac = snd_ca0106_channel_dac(chip, chip->details,
544						       channel_id);
545		const int reg = spi_dacd_reg[dac];
546		const int bit = spi_dacd_bit[dac];
547
548		if (power)
549			/* Power up */
550			chip->spi_dac_reg[reg] &= ~bit;
551		else
552			/* Power down */
553			chip->spi_dac_reg[reg] |= bit;
554		return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
555	}
556	return 0;
557}
558
559/* open_playback callback */
560static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
561						int channel_id)
562{
563	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
564        struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
565	struct snd_ca0106_pcm *epcm;
566	struct snd_pcm_runtime *runtime = substream->runtime;
567	int err;
568
569	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
570
571	if (epcm == NULL)
572		return -ENOMEM;
573	epcm->emu = chip;
574	epcm->substream = substream;
575        epcm->channel_id=channel_id;
576
577	runtime->private_data = epcm;
578	runtime->private_free = snd_ca0106_pcm_free_substream;
579
580	runtime->hw = snd_ca0106_playback_hw;
581
582        channel->emu = chip;
583        channel->number = channel_id;
584
585	channel->use = 1;
586	/*
587	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
588	       channel_id, chip, channel);
589	*/
590        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
591	channel->epcm = epcm;
592	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
593                return err;
594	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
595                return err;
596	snd_pcm_set_sync(substream);
597
598	/* Front channel dac should already be on */
599	if (channel_id != PCM_FRONT_CHANNEL) {
600		err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
601		if (err < 0)
602			return err;
603	}
604
605	restore_spdif_bits(chip, channel_id);
606
607	return 0;
608}
609
610/* close callback */
611static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
612{
613	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
614	struct snd_pcm_runtime *runtime = substream->runtime;
615        struct snd_ca0106_pcm *epcm = runtime->private_data;
616	chip->playback_channels[epcm->channel_id].use = 0;
617
618	restore_spdif_bits(chip, epcm->channel_id);
619
620	/* Front channel dac should stay on */
621	if (epcm->channel_id != PCM_FRONT_CHANNEL) {
622		int err;
623		err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
624		if (err < 0)
625			return err;
626	}
627
628	/* FIXME: maybe zero others */
629	return 0;
630}
631
632static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
633{
634	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
635}
636
637static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
638{
639	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
640}
641
642static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
643{
644	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
645}
646
647static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
648{
649	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
650}
651
652/* open_capture callback */
653static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
654					       int channel_id)
655{
656	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
657        struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
658	struct snd_ca0106_pcm *epcm;
659	struct snd_pcm_runtime *runtime = substream->runtime;
660	int err;
661
662	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
663	if (epcm == NULL) {
664		dev_err(chip->card->dev,
665			"open_capture_channel: failed epcm alloc\n");
666		return -ENOMEM;
667        }
668	epcm->emu = chip;
669	epcm->substream = substream;
670        epcm->channel_id=channel_id;
671
672	runtime->private_data = epcm;
673	runtime->private_free = snd_ca0106_pcm_free_substream;
674
675	runtime->hw = snd_ca0106_capture_hw;
676
677        channel->emu = chip;
678        channel->number = channel_id;
679
680	channel->use = 1;
681	/*
682	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
683	       channel_id, chip, channel);
684	*/
685        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
686        channel->epcm = epcm;
687	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
688                return err;
689	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
690	if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
691                return err;
692	return 0;
693}
694
695/* close callback */
696static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
697{
698	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
699	struct snd_pcm_runtime *runtime = substream->runtime;
700        struct snd_ca0106_pcm *epcm = runtime->private_data;
701	chip->capture_channels[epcm->channel_id].use = 0;
702	/* FIXME: maybe zero others */
703	return 0;
704}
705
706static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
707{
708	return snd_ca0106_pcm_open_capture_channel(substream, 0);
709}
710
711static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
712{
713	return snd_ca0106_pcm_open_capture_channel(substream, 1);
714}
715
716static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
717{
718	return snd_ca0106_pcm_open_capture_channel(substream, 2);
719}
720
721static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
722{
723	return snd_ca0106_pcm_open_capture_channel(substream, 3);
724}
725
726/* hw_params callback */
727static int snd_ca0106_pcm_hw_params_playback(struct snd_pcm_substream *substream,
728				      struct snd_pcm_hw_params *hw_params)
729{
730	return snd_pcm_lib_malloc_pages(substream,
731					params_buffer_bytes(hw_params));
732}
733
734/* hw_free callback */
735static int snd_ca0106_pcm_hw_free_playback(struct snd_pcm_substream *substream)
736{
737	return snd_pcm_lib_free_pages(substream);
738}
739
740/* hw_params callback */
741static int snd_ca0106_pcm_hw_params_capture(struct snd_pcm_substream *substream,
742				      struct snd_pcm_hw_params *hw_params)
743{
744	return snd_pcm_lib_malloc_pages(substream,
745					params_buffer_bytes(hw_params));
746}
747
748/* hw_free callback */
749static int snd_ca0106_pcm_hw_free_capture(struct snd_pcm_substream *substream)
750{
751	return snd_pcm_lib_free_pages(substream);
752}
753
754/* prepare playback callback */
755static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
756{
757	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
758	struct snd_pcm_runtime *runtime = substream->runtime;
759	struct snd_ca0106_pcm *epcm = runtime->private_data;
760	int channel = epcm->channel_id;
761	u32 *table_base = (u32 *)(emu->buffer.area+(8*16*channel));
762	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
763	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
764	u32 hcfg_set = 0x00000000;
765	u32 hcfg;
766	u32 reg40_mask = 0x30000 << (channel<<1);
767	u32 reg40_set = 0;
768	u32 reg40;
769	/* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
770	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
771	u32 reg71_set = 0;
772	u32 reg71;
773	int i;
774
775#if 0 /* debug */
776	dev_dbg(emu->card->dev,
777		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
778		   "channels=%d, buffer_size=%ld, period_size=%ld, "
779		   "periods=%u, frames_to_bytes=%d\n",
780		   channel, runtime->rate, runtime->format,
781		   runtime->channels, runtime->buffer_size,
782		   runtime->period_size, runtime->periods,
783		   frames_to_bytes(runtime, 1));
784	dev_dbg(emu->card->dev,
785		"dma_addr=%x, dma_area=%p, table_base=%p\n",
786		   runtime->dma_addr, runtime->dma_area, table_base);
787	dev_dbg(emu->card->dev,
788		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
789		   emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
790#endif /* debug */
791	/* Rate can be set per channel. */
792	/* reg40 control host to fifo */
793	/* reg71 controls DAC rate. */
794	switch (runtime->rate) {
795	case 44100:
796		reg40_set = 0x10000 << (channel<<1);
797		reg71_set = 0x01010000;
798		break;
799        case 48000:
800		reg40_set = 0;
801		reg71_set = 0;
802		break;
803	case 96000:
804		reg40_set = 0x20000 << (channel<<1);
805		reg71_set = 0x02020000;
806		break;
807	case 192000:
808		reg40_set = 0x30000 << (channel<<1);
809		reg71_set = 0x03030000;
810		break;
811	default:
812		reg40_set = 0;
813		reg71_set = 0;
814		break;
815	}
816	/* Format is a global setting */
817	/* FIXME: Only let the first channel accessed set this. */
818	switch (runtime->format) {
819	case SNDRV_PCM_FORMAT_S16_LE:
820		hcfg_set = 0;
821		break;
822	case SNDRV_PCM_FORMAT_S32_LE:
823		hcfg_set = HCFG_PLAYBACK_S32_LE;
824		break;
825	default:
826		hcfg_set = 0;
827		break;
828	}
829	hcfg = inl(emu->port + HCFG) ;
830	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
831	outl(hcfg, emu->port + HCFG);
832	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
833	reg40 = (reg40 & ~reg40_mask) | reg40_set;
834	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
835	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
836	reg71 = (reg71 & ~reg71_mask) | reg71_set;
837	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
838
839	/* FIXME: Check emu->buffer.size before actually writing to it. */
840        for(i=0; i < runtime->periods; i++) {
841		table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
842		table_base[i*2+1] = period_size_bytes << 16;
843	}
844
845	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer.addr+(8*16*channel));
846	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
847	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
848	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
849	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
850	/* FIXME  test what 0 bytes does. */
851	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
852	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
853	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
854	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
855        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
856#if 0
857	snd_ca0106_ptr_write(emu, SPCS0, 0,
858			       SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
859			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
860			       SPCS_GENERATIONSTATUS | 0x00001200 |
861			       0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
862#endif
863
864	return 0;
865}
866
867/* prepare capture callback */
868static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
869{
870	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
871	struct snd_pcm_runtime *runtime = substream->runtime;
872	struct snd_ca0106_pcm *epcm = runtime->private_data;
873	int channel = epcm->channel_id;
874	u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
875	u32 hcfg_set = 0x00000000;
876	u32 hcfg;
877	u32 over_sampling=0x2;
878	u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
879	u32 reg71_set = 0;
880	u32 reg71;
881
882#if 0 /* debug */
883	dev_dbg(emu->card->dev,
884		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
885		   "channels=%d, buffer_size=%ld, period_size=%ld, "
886		   "periods=%u, frames_to_bytes=%d\n",
887		   channel, runtime->rate, runtime->format,
888		   runtime->channels, runtime->buffer_size,
889		   runtime->period_size, runtime->periods,
890		   frames_to_bytes(runtime, 1));
891	dev_dbg(emu->card->dev,
892		"dma_addr=%x, dma_area=%p, table_base=%p\n",
893		   runtime->dma_addr, runtime->dma_area, table_base);
894	dev_dbg(emu->card->dev,
895		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
896		   emu->buffer.addr, emu->buffer.area, emu->buffer.bytes);
897#endif /* debug */
898	/* reg71 controls ADC rate. */
899	switch (runtime->rate) {
900	case 44100:
901		reg71_set = 0x00004000;
902		break;
903        case 48000:
904		reg71_set = 0;
905		break;
906	case 96000:
907		reg71_set = 0x00008000;
908		over_sampling=0xa;
909		break;
910	case 192000:
911		reg71_set = 0x0000c000;
912		over_sampling=0xa;
913		break;
914	default:
915		reg71_set = 0;
916		break;
917	}
918	/* Format is a global setting */
919	/* FIXME: Only let the first channel accessed set this. */
920	switch (runtime->format) {
921	case SNDRV_PCM_FORMAT_S16_LE:
922		hcfg_set = 0;
923		break;
924	case SNDRV_PCM_FORMAT_S32_LE:
925		hcfg_set = HCFG_CAPTURE_S32_LE;
926		break;
927	default:
928		hcfg_set = 0;
929		break;
930	}
931	hcfg = inl(emu->port + HCFG) ;
932	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
933	outl(hcfg, emu->port + HCFG);
934	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
935	reg71 = (reg71 & ~reg71_mask) | reg71_set;
936	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
937        if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
938	        snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
939	}
940
941
942	/*
943	dev_dbg(emu->card->dev,
944	       "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
945	       "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
946	       channel, runtime->rate, runtime->format, runtime->channels,
947	       runtime->buffer_size, runtime->period_size,
948	       frames_to_bytes(runtime, 1));
949	*/
950	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
951	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
952	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
953	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
954
955	return 0;
956}
957
958/* trigger_playback callback */
959static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
960				    int cmd)
961{
962	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
963	struct snd_pcm_runtime *runtime;
964	struct snd_ca0106_pcm *epcm;
965	int channel;
966	int result = 0;
967        struct snd_pcm_substream *s;
968	u32 basic = 0;
969	u32 extended = 0;
970	u32 bits;
971	int running = 0;
972
973	switch (cmd) {
974	case SNDRV_PCM_TRIGGER_START:
975	case SNDRV_PCM_TRIGGER_RESUME:
976		running = 1;
977		break;
978	case SNDRV_PCM_TRIGGER_STOP:
979	case SNDRV_PCM_TRIGGER_SUSPEND:
980	default:
981		running = 0;
982		break;
983	}
984        snd_pcm_group_for_each_entry(s, substream) {
985		if (snd_pcm_substream_chip(s) != emu ||
986		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
987			continue;
988		runtime = s->runtime;
989		epcm = runtime->private_data;
990		channel = epcm->channel_id;
991		/* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
992		epcm->running = running;
993		basic |= (0x1 << channel);
994		extended |= (0x10 << channel);
995                snd_pcm_trigger_done(s, substream);
996        }
997	/* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
998
999	switch (cmd) {
1000	case SNDRV_PCM_TRIGGER_START:
1001	case SNDRV_PCM_TRIGGER_RESUME:
1002		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1003		bits |= extended;
1004		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1005		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1006		bits |= basic;
1007		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1008		break;
1009	case SNDRV_PCM_TRIGGER_STOP:
1010	case SNDRV_PCM_TRIGGER_SUSPEND:
1011		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
1012		bits &= ~basic;
1013		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
1014		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
1015		bits &= ~extended;
1016		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
1017		break;
1018	default:
1019		result = -EINVAL;
1020		break;
1021	}
1022	return result;
1023}
1024
1025/* trigger_capture callback */
1026static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
1027				    int cmd)
1028{
1029	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1030	struct snd_pcm_runtime *runtime = substream->runtime;
1031	struct snd_ca0106_pcm *epcm = runtime->private_data;
1032	int channel = epcm->channel_id;
1033	int result = 0;
1034
1035	switch (cmd) {
1036	case SNDRV_PCM_TRIGGER_START:
1037		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
1038		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
1039		epcm->running = 1;
1040		break;
1041	case SNDRV_PCM_TRIGGER_STOP:
1042		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1043		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1044		epcm->running = 0;
1045		break;
1046	default:
1047		result = -EINVAL;
1048		break;
1049	}
1050	return result;
1051}
1052
1053/* pointer_playback callback */
1054static snd_pcm_uframes_t
1055snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1056{
1057	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1058	struct snd_pcm_runtime *runtime = substream->runtime;
1059	struct snd_ca0106_pcm *epcm = runtime->private_data;
1060	unsigned int ptr, prev_ptr;
1061	int channel = epcm->channel_id;
1062	int timeout = 10;
1063
1064	if (!epcm->running)
1065		return 0;
1066
1067	prev_ptr = -1;
1068	do {
1069		ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1070		ptr = (ptr >> 3) * runtime->period_size;
1071		ptr += bytes_to_frames(runtime,
1072			snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1073		if (ptr >= runtime->buffer_size)
1074			ptr -= runtime->buffer_size;
1075		if (prev_ptr == ptr)
1076			return ptr;
1077		prev_ptr = ptr;
1078	} while (--timeout);
1079	dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1080	return 0;
1081}
1082
1083/* pointer_capture callback */
1084static snd_pcm_uframes_t
1085snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1086{
1087	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1088	struct snd_pcm_runtime *runtime = substream->runtime;
1089	struct snd_ca0106_pcm *epcm = runtime->private_data;
1090	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1091	int channel = epcm->channel_id;
1092
1093	if (!epcm->running)
1094		return 0;
1095
1096	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1097	ptr2 = bytes_to_frames(runtime, ptr1);
1098	ptr=ptr2;
1099        if (ptr >= runtime->buffer_size)
1100		ptr -= runtime->buffer_size;
1101	/*
1102	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1103	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1104	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
1105	       (int)runtime->period_size, (int)runtime->frame_bits,
1106	       (int)runtime->rate);
1107	*/
1108	return ptr;
1109}
1110
1111/* operators */
1112static struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1113	.open =        snd_ca0106_pcm_open_playback_front,
1114	.close =       snd_ca0106_pcm_close_playback,
1115	.ioctl =       snd_pcm_lib_ioctl,
1116	.hw_params =   snd_ca0106_pcm_hw_params_playback,
1117	.hw_free =     snd_ca0106_pcm_hw_free_playback,
1118	.prepare =     snd_ca0106_pcm_prepare_playback,
1119	.trigger =     snd_ca0106_pcm_trigger_playback,
1120	.pointer =     snd_ca0106_pcm_pointer_playback,
1121};
1122
1123static struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1124	.open =        snd_ca0106_pcm_open_0_capture,
1125	.close =       snd_ca0106_pcm_close_capture,
1126	.ioctl =       snd_pcm_lib_ioctl,
1127	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1128	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1129	.prepare =     snd_ca0106_pcm_prepare_capture,
1130	.trigger =     snd_ca0106_pcm_trigger_capture,
1131	.pointer =     snd_ca0106_pcm_pointer_capture,
1132};
1133
1134static struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1135	.open =        snd_ca0106_pcm_open_1_capture,
1136	.close =       snd_ca0106_pcm_close_capture,
1137	.ioctl =       snd_pcm_lib_ioctl,
1138	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1139	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1140	.prepare =     snd_ca0106_pcm_prepare_capture,
1141	.trigger =     snd_ca0106_pcm_trigger_capture,
1142	.pointer =     snd_ca0106_pcm_pointer_capture,
1143};
1144
1145static struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1146	.open =        snd_ca0106_pcm_open_2_capture,
1147	.close =       snd_ca0106_pcm_close_capture,
1148	.ioctl =       snd_pcm_lib_ioctl,
1149	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1150	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1151	.prepare =     snd_ca0106_pcm_prepare_capture,
1152	.trigger =     snd_ca0106_pcm_trigger_capture,
1153	.pointer =     snd_ca0106_pcm_pointer_capture,
1154};
1155
1156static struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1157	.open =        snd_ca0106_pcm_open_3_capture,
1158	.close =       snd_ca0106_pcm_close_capture,
1159	.ioctl =       snd_pcm_lib_ioctl,
1160	.hw_params =   snd_ca0106_pcm_hw_params_capture,
1161	.hw_free =     snd_ca0106_pcm_hw_free_capture,
1162	.prepare =     snd_ca0106_pcm_prepare_capture,
1163	.trigger =     snd_ca0106_pcm_trigger_capture,
1164	.pointer =     snd_ca0106_pcm_pointer_capture,
1165};
1166
1167static struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1168        .open =         snd_ca0106_pcm_open_playback_center_lfe,
1169        .close =        snd_ca0106_pcm_close_playback,
1170        .ioctl =        snd_pcm_lib_ioctl,
1171        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1172        .hw_free =      snd_ca0106_pcm_hw_free_playback,
1173        .prepare =      snd_ca0106_pcm_prepare_playback,
1174        .trigger =      snd_ca0106_pcm_trigger_playback,
1175        .pointer =      snd_ca0106_pcm_pointer_playback,
1176};
1177
1178static struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1179        .open =         snd_ca0106_pcm_open_playback_unknown,
1180        .close =        snd_ca0106_pcm_close_playback,
1181        .ioctl =        snd_pcm_lib_ioctl,
1182        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1183        .hw_free =      snd_ca0106_pcm_hw_free_playback,
1184        .prepare =      snd_ca0106_pcm_prepare_playback,
1185        .trigger =      snd_ca0106_pcm_trigger_playback,
1186        .pointer =      snd_ca0106_pcm_pointer_playback,
1187};
1188
1189static struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1190        .open =         snd_ca0106_pcm_open_playback_rear,
1191        .close =        snd_ca0106_pcm_close_playback,
1192        .ioctl =        snd_pcm_lib_ioctl,
1193        .hw_params =    snd_ca0106_pcm_hw_params_playback,
1194		.hw_free =      snd_ca0106_pcm_hw_free_playback,
1195        .prepare =      snd_ca0106_pcm_prepare_playback,
1196        .trigger =      snd_ca0106_pcm_trigger_playback,
1197        .pointer =      snd_ca0106_pcm_pointer_playback,
1198};
1199
1200
1201static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1202					     unsigned short reg)
1203{
1204	struct snd_ca0106 *emu = ac97->private_data;
1205	unsigned long flags;
1206	unsigned short val;
1207
1208	spin_lock_irqsave(&emu->emu_lock, flags);
1209	outb(reg, emu->port + AC97ADDRESS);
1210	val = inw(emu->port + AC97DATA);
1211	spin_unlock_irqrestore(&emu->emu_lock, flags);
1212	return val;
1213}
1214
1215static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1216				    unsigned short reg, unsigned short val)
1217{
1218	struct snd_ca0106 *emu = ac97->private_data;
1219	unsigned long flags;
1220
1221	spin_lock_irqsave(&emu->emu_lock, flags);
1222	outb(reg, emu->port + AC97ADDRESS);
1223	outw(val, emu->port + AC97DATA);
1224	spin_unlock_irqrestore(&emu->emu_lock, flags);
1225}
1226
1227static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1228{
1229	struct snd_ac97_bus *pbus;
1230	struct snd_ac97_template ac97;
1231	int err;
1232	static struct snd_ac97_bus_ops ops = {
1233		.write = snd_ca0106_ac97_write,
1234		.read = snd_ca0106_ac97_read,
1235	};
1236
1237	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1238		return err;
1239	pbus->no_vra = 1; /* we don't need VRA */
1240
1241	memset(&ac97, 0, sizeof(ac97));
1242	ac97.private_data = chip;
1243	ac97.scaps = AC97_SCAP_NO_SPDIF;
1244	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1245}
1246
1247static void ca0106_stop_chip(struct snd_ca0106 *chip);
1248
1249static int snd_ca0106_free(struct snd_ca0106 *chip)
1250{
1251	if (chip->res_port != NULL) {
1252		/* avoid access to already used hardware */
1253		ca0106_stop_chip(chip);
1254	}
1255	if (chip->irq >= 0)
1256		free_irq(chip->irq, chip);
1257	// release the data
1258#if 1
1259	if (chip->buffer.area)
1260		snd_dma_free_pages(&chip->buffer);
1261#endif
1262
1263	// release the i/o port
1264	release_and_free_resource(chip->res_port);
1265
1266	pci_disable_device(chip->pci);
1267	kfree(chip);
1268	return 0;
1269}
1270
1271static int snd_ca0106_dev_free(struct snd_device *device)
1272{
1273	struct snd_ca0106 *chip = device->device_data;
1274	return snd_ca0106_free(chip);
1275}
1276
1277static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1278{
1279	unsigned int status;
1280
1281	struct snd_ca0106 *chip = dev_id;
1282	int i;
1283	int mask;
1284        unsigned int stat76;
1285	struct snd_ca0106_channel *pchannel;
1286
1287	status = inl(chip->port + IPR);
1288	if (! status)
1289		return IRQ_NONE;
1290
1291        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1292	/*
1293	dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1294		   status, stat76);
1295	dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1296		   snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1297	*/
1298        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1299	for(i = 0; i < 4; i++) {
1300		pchannel = &(chip->playback_channels[i]);
1301		if (stat76 & mask) {
1302/* FIXME: Select the correct substream for period elapsed */
1303			if(pchannel->use) {
1304				snd_pcm_period_elapsed(pchannel->epcm->substream);
1305				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1306                        }
1307		}
1308		/*
1309		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1310		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1311		*/
1312		mask <<= 1;
1313	}
1314        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1315	for(i = 0; i < 4; i++) {
1316		pchannel = &(chip->capture_channels[i]);
1317		if (stat76 & mask) {
1318/* FIXME: Select the correct substream for period elapsed */
1319			if(pchannel->use) {
1320				snd_pcm_period_elapsed(pchannel->epcm->substream);
1321				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1322                        }
1323		}
1324		/*
1325		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1326		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1327		*/
1328		mask <<= 1;
1329	}
1330
1331        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1332
1333	if (chip->midi.dev_id &&
1334	    (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1335		if (chip->midi.interrupt)
1336			chip->midi.interrupt(&chip->midi, status);
1337		else
1338			chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1339	}
1340
1341	// acknowledge the interrupt if necessary
1342	outl(status, chip->port+IPR);
1343
1344	return IRQ_HANDLED;
1345}
1346
1347static const struct snd_pcm_chmap_elem surround_map[] = {
1348	{ .channels = 2,
1349	  .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1350	{ }
1351};
1352
1353static const struct snd_pcm_chmap_elem clfe_map[] = {
1354	{ .channels = 2,
1355	  .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1356	{ }
1357};
1358
1359static const struct snd_pcm_chmap_elem side_map[] = {
1360	{ .channels = 2,
1361	  .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1362	{ }
1363};
1364
1365static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1366{
1367	struct snd_pcm *pcm;
1368	struct snd_pcm_substream *substream;
1369	const struct snd_pcm_chmap_elem *map = NULL;
1370	int err;
1371
1372	err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1373	if (err < 0)
1374		return err;
1375
1376	pcm->private_data = emu;
1377
1378	switch (device) {
1379	case 0:
1380	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1381	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1382	  map = snd_pcm_std_chmaps;
1383          break;
1384	case 1:
1385	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1386	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1387	  map = surround_map;
1388          break;
1389	case 2:
1390	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1391	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1392	  map = clfe_map;
1393          break;
1394	case 3:
1395	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1396	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1397	  map = side_map;
1398          break;
1399        }
1400
1401	pcm->info_flags = 0;
1402	strcpy(pcm->name, "CA0106");
1403
1404	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1405	    substream;
1406	    substream = substream->next) {
1407		if ((err = snd_pcm_lib_preallocate_pages(substream,
1408							 SNDRV_DMA_TYPE_DEV,
1409							 snd_dma_pci_data(emu->pci),
1410							 64*1024, 64*1024)) < 0) /* FIXME: 32*1024 for sound buffer, between 32and64 for Periods table. */
1411			return err;
1412	}
1413
1414	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1415	      substream;
1416	      substream = substream->next) {
1417 		if ((err = snd_pcm_lib_preallocate_pages(substream,
1418	                                           SNDRV_DMA_TYPE_DEV,
1419	                                           snd_dma_pci_data(emu->pci),
1420	                                           64*1024, 64*1024)) < 0)
1421			return err;
1422	}
1423
1424	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1425				     1 << 2, NULL);
1426	if (err < 0)
1427		return err;
1428
1429	emu->pcm[device] = pcm;
1430
1431	return 0;
1432}
1433
1434#define SPI_REG(reg, value)	(((reg) << SPI_REG_SHIFT) | (value))
1435static unsigned int spi_dac_init[] = {
1436	SPI_REG(SPI_LDA1_REG,	SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1437	SPI_REG(SPI_RDA1_REG,	SPI_DA_BIT_0dB),
1438	SPI_REG(SPI_PL_REG,	SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1439	SPI_REG(SPI_FMT_REG,	SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1440	SPI_REG(SPI_LDA2_REG,	SPI_DA_BIT_0dB),
1441	SPI_REG(SPI_RDA2_REG,	SPI_DA_BIT_0dB),
1442	SPI_REG(SPI_LDA3_REG,	SPI_DA_BIT_0dB),
1443	SPI_REG(SPI_RDA3_REG,	SPI_DA_BIT_0dB),
1444	SPI_REG(SPI_MASTDA_REG,	SPI_DA_BIT_0dB),
1445	SPI_REG(9,		0x00),
1446	SPI_REG(SPI_MS_REG,	SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1447	SPI_REG(12,		0x00),
1448	SPI_REG(SPI_LDA4_REG,	SPI_DA_BIT_0dB),
1449	SPI_REG(SPI_RDA4_REG,	SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1450	SPI_REG(SPI_DACD4_REG,	SPI_DACD4_BIT),
1451};
1452
1453static unsigned int i2c_adc_init[][2] = {
1454	{ 0x17, 0x00 }, /* Reset */
1455	{ 0x07, 0x00 }, /* Timeout */
1456	{ 0x0b, 0x22 },  /* Interface control */
1457	{ 0x0c, 0x22 },  /* Master mode control */
1458	{ 0x0d, 0x08 },  /* Powerdown control */
1459	{ 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1460	{ 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1461	{ 0x10, 0x7b },  /* ALC Control 1 */
1462	{ 0x11, 0x00 },  /* ALC Control 2 */
1463	{ 0x12, 0x32 },  /* ALC Control 3 */
1464	{ 0x13, 0x00 },  /* Noise gate control */
1465	{ 0x14, 0xa6 },  /* Limiter control */
1466	{ 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1467};
1468
1469static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1470{
1471	int ch;
1472	unsigned int def_bits;
1473
1474	outl(0, chip->port + INTE);
1475
1476	/*
1477	 *  Init to 0x02109204 :
1478	 *  Clock accuracy    = 0     (1000ppm)
1479	 *  Sample Rate       = 2     (48kHz)
1480	 *  Audio Channel     = 1     (Left of 2)
1481	 *  Source Number     = 0     (Unspecified)
1482	 *  Generation Status = 1     (Original for Cat Code 12)
1483	 *  Cat Code          = 12    (Digital Signal Mixer)
1484	 *  Mode              = 0     (Mode 0)
1485	 *  Emphasis          = 0     (None)
1486	 *  CP                = 1     (Copyright unasserted)
1487	 *  AN                = 0     (Audio data)
1488	 *  P                 = 0     (Consumer)
1489	 */
1490	def_bits =
1491		SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1492		SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1493		SPCS_GENERATIONSTATUS | 0x00001200 |
1494		0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1495	if (!resume) {
1496		chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1497		chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1498		chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1499		chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1500	}
1501	/* Only SPCS1 has been tested */
1502	snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1503	snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1504	snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1505	snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1506
1507        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1508        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1509
1510        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1511        outb(AC97_REC_GAIN, chip->port + AC97ADDRESS);
1512        outw(0x8000, chip->port + AC97DATA);
1513#if 0 /* FIXME: what are these? */
1514	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1515	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1516	snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1517	snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1518#endif
1519
1520	/* OSS drivers set this. */
1521	/* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1522
1523	/* Analog or Digital output */
1524	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1525	/* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1526	 * Use 0x000f0000 for surround71
1527	 */
1528	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1529
1530	chip->spdif_enable = 0; /* Set digital SPDIF output off */
1531	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1532	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1533
1534	/* goes to 0x40c80000 when doing SPDIF IN/OUT */
1535	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1536	/* (Mute) CAPTURE feedback into PLAYBACK volume.
1537	 * Only lower 16 bits matter.
1538	 */
1539	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1540	/* SPDIF IN Volume */
1541	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1542	/* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1543	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1544
1545	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1546	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1547	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1548	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1549
1550	for (ch = 0; ch < 4; ch++) {
1551		/* Only high 16 bits matter */
1552		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1553		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1554#if 0 /* Mute */
1555		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1556		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1557		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1558		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1559#endif
1560	}
1561	if (chip->details->i2c_adc == 1) {
1562	        /* Select MIC, Line in, TAD in, AUX in */
1563	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1564		/* Default to CAPTURE_SOURCE to i2s in */
1565		if (!resume)
1566			chip->capture_source = 3;
1567	} else if (chip->details->ac97 == 1) {
1568	        /* Default to AC97 in */
1569	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1570		/* Default to CAPTURE_SOURCE to AC97 in */
1571		if (!resume)
1572			chip->capture_source = 4;
1573	} else {
1574	        /* Select MIC, Line in, TAD in, AUX in */
1575	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1576		/* Default to Set CAPTURE_SOURCE to i2s in */
1577		if (!resume)
1578			chip->capture_source = 3;
1579	}
1580
1581	if (chip->details->gpio_type == 2) {
1582		/* The SB0438 use GPIO differently. */
1583		/* FIXME: Still need to find out what the other GPIO bits do.
1584		 * E.g. For digital spdif out.
1585		 */
1586		outl(0x0, chip->port+GPIO);
1587		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1588		outl(0x005f5301, chip->port+GPIO); /* Analog */
1589	} else if (chip->details->gpio_type == 1) {
1590		/* The SB0410 and SB0413 use GPIO differently. */
1591		/* FIXME: Still need to find out what the other GPIO bits do.
1592		 * E.g. For digital spdif out.
1593		 */
1594		outl(0x0, chip->port+GPIO);
1595		/* outl(0x00f0e000, chip->port+GPIO); */ /* Analog */
1596		outl(0x005f5301, chip->port+GPIO); /* Analog */
1597	} else {
1598		outl(0x0, chip->port+GPIO);
1599		outl(0x005f03a3, chip->port+GPIO); /* Analog */
1600		/* outl(0x005f02a2, chip->port+GPIO); */ /* SPDIF */
1601	}
1602	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1603
1604	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1605	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1606	/* outl(0x00001409, chip->port+HCFG); */
1607	/* outl(0x00000009, chip->port+HCFG); */
1608	/* AC97 2.0, Enable outputs. */
1609	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port+HCFG);
1610
1611	if (chip->details->i2c_adc == 1) {
1612		/* The SB0410 and SB0413 use I2C to control ADC. */
1613		int size, n;
1614
1615		size = ARRAY_SIZE(i2c_adc_init);
1616		/* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1617		for (n = 0; n < size; n++)
1618			snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1619					     i2c_adc_init[n][1]);
1620		for (n = 0; n < 4; n++) {
1621			chip->i2c_capture_volume[n][0] = 0xcf;
1622			chip->i2c_capture_volume[n][1] = 0xcf;
1623		}
1624		chip->i2c_capture_source = 2; /* Line in */
1625		/* Enable Line-in capture. MIC in currently untested. */
1626		/* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1627	}
1628
1629	if (chip->details->spi_dac) {
1630		/* The SB0570 use SPI to control DAC. */
1631		int size, n;
1632
1633		size = ARRAY_SIZE(spi_dac_init);
1634		for (n = 0; n < size; n++) {
1635			int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1636
1637			snd_ca0106_spi_write(chip, spi_dac_init[n]);
1638			if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1639				chip->spi_dac_reg[reg] = spi_dac_init[n];
1640		}
1641
1642		/* Enable front dac only */
1643		snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1644	}
1645}
1646
1647static void ca0106_stop_chip(struct snd_ca0106 *chip)
1648{
1649	/* disable interrupts */
1650	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1651	outl(0, chip->port + INTE);
1652	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1653	udelay(1000);
1654	/* disable audio */
1655	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1656	outl(0, chip->port + HCFG);
1657	/* FIXME: We need to stop and DMA transfers here.
1658	 *        But as I am not sure how yet, we cannot from the dma pages.
1659	 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1660	 */
1661}
1662
1663static int snd_ca0106_create(int dev, struct snd_card *card,
1664					 struct pci_dev *pci,
1665					 struct snd_ca0106 **rchip)
1666{
1667	struct snd_ca0106 *chip;
1668	struct snd_ca0106_details *c;
1669	int err;
1670	static struct snd_device_ops ops = {
1671		.dev_free = snd_ca0106_dev_free,
1672	};
1673
1674	*rchip = NULL;
1675
1676	err = pci_enable_device(pci);
1677	if (err < 0)
1678		return err;
1679	if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
1680	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
1681		dev_err(card->dev, "error to set 32bit mask DMA\n");
1682		pci_disable_device(pci);
1683		return -ENXIO;
1684	}
1685
1686	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1687	if (chip == NULL) {
1688		pci_disable_device(pci);
1689		return -ENOMEM;
1690	}
1691
1692	chip->card = card;
1693	chip->pci = pci;
1694	chip->irq = -1;
1695
1696	spin_lock_init(&chip->emu_lock);
1697
1698	chip->port = pci_resource_start(pci, 0);
1699	chip->res_port = request_region(chip->port, 0x20, "snd_ca0106");
1700	if (!chip->res_port) {
1701		snd_ca0106_free(chip);
1702		dev_err(card->dev, "cannot allocate the port\n");
1703		return -EBUSY;
1704	}
1705
1706	if (request_irq(pci->irq, snd_ca0106_interrupt,
1707			IRQF_SHARED, KBUILD_MODNAME, chip)) {
1708		snd_ca0106_free(chip);
1709		dev_err(card->dev, "cannot grab irq\n");
1710		return -EBUSY;
1711	}
1712	chip->irq = pci->irq;
1713
1714	/* This stores the periods table. */
1715	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1716				1024, &chip->buffer) < 0) {
1717		snd_ca0106_free(chip);
1718		return -ENOMEM;
1719	}
1720
1721	pci_set_master(pci);
1722	/* read serial */
1723	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1724	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1725	dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1726	       chip->model, pci->revision, chip->serial);
1727	strcpy(card->driver, "CA0106");
1728	strcpy(card->shortname, "CA0106");
1729
1730	for (c = ca0106_chip_details; c->serial; c++) {
1731		if (subsystem[dev]) {
1732			if (c->serial == subsystem[dev])
1733				break;
1734		} else if (c->serial == chip->serial)
1735			break;
1736	}
1737	chip->details = c;
1738	if (subsystem[dev]) {
1739		dev_info(card->dev, "Sound card name=%s, "
1740		       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1741		       c->name, chip->serial, subsystem[dev]);
1742	}
1743
1744	sprintf(card->longname, "%s at 0x%lx irq %i",
1745		c->name, chip->port, chip->irq);
1746
1747	ca0106_init_chip(chip, 0);
1748
1749	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1750	if (err < 0) {
1751		snd_ca0106_free(chip);
1752		return err;
1753	}
1754	*rchip = chip;
1755	return 0;
1756}
1757
1758
1759static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1760{
1761	snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1762}
1763
1764static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1765{
1766	snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1767}
1768
1769static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1770{
1771	return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1772						  midi->port + idx, 0);
1773}
1774
1775static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1776{
1777	snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1778}
1779
1780static struct snd_card *ca0106_dev_id_card(void *dev_id)
1781{
1782	return ((struct snd_ca0106 *)dev_id)->card;
1783}
1784
1785static int ca0106_dev_id_port(void *dev_id)
1786{
1787	return ((struct snd_ca0106 *)dev_id)->port;
1788}
1789
1790static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1791{
1792	struct snd_ca_midi *midi;
1793	char *name;
1794	int err;
1795
1796	if (channel == CA0106_MIDI_CHAN_B) {
1797		name = "CA0106 MPU-401 (UART) B";
1798		midi =  &chip->midi2;
1799		midi->tx_enable = INTE_MIDI_TX_B;
1800		midi->rx_enable = INTE_MIDI_RX_B;
1801		midi->ipr_tx = IPR_MIDI_TX_B;
1802		midi->ipr_rx = IPR_MIDI_RX_B;
1803		midi->port = MIDI_UART_B_DATA;
1804	} else {
1805		name = "CA0106 MPU-401 (UART)";
1806		midi =  &chip->midi;
1807		midi->tx_enable = INTE_MIDI_TX_A;
1808		midi->rx_enable = INTE_MIDI_TX_B;
1809		midi->ipr_tx = IPR_MIDI_TX_A;
1810		midi->ipr_rx = IPR_MIDI_RX_A;
1811		midi->port = MIDI_UART_A_DATA;
1812	}
1813
1814	midi->reset = CA0106_MPU401_RESET;
1815	midi->enter_uart = CA0106_MPU401_ENTER_UART;
1816	midi->ack = CA0106_MPU401_ACK;
1817
1818	midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1819	midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1820
1821	midi->channel = channel;
1822
1823	midi->interrupt_enable = ca0106_midi_interrupt_enable;
1824	midi->interrupt_disable = ca0106_midi_interrupt_disable;
1825
1826	midi->read = ca0106_midi_read;
1827	midi->write = ca0106_midi_write;
1828
1829	midi->get_dev_id_card = ca0106_dev_id_card;
1830	midi->get_dev_id_port = ca0106_dev_id_port;
1831
1832	midi->dev_id = chip;
1833
1834	if ((err = ca_midi_init(chip, midi, 0, name)) < 0)
1835		return err;
1836
1837	return 0;
1838}
1839
1840
1841static int snd_ca0106_probe(struct pci_dev *pci,
1842					const struct pci_device_id *pci_id)
1843{
1844	static int dev;
1845	struct snd_card *card;
1846	struct snd_ca0106 *chip;
1847	int i, err;
1848
1849	if (dev >= SNDRV_CARDS)
1850		return -ENODEV;
1851	if (!enable[dev]) {
1852		dev++;
1853		return -ENOENT;
1854	}
1855
1856	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1857			   0, &card);
1858	if (err < 0)
1859		return err;
1860
1861	err = snd_ca0106_create(dev, card, pci, &chip);
1862	if (err < 0)
1863		goto error;
1864	card->private_data = chip;
1865
1866	for (i = 0; i < 4; i++) {
1867		err = snd_ca0106_pcm(chip, i);
1868		if (err < 0)
1869			goto error;
1870	}
1871
1872	if (chip->details->ac97 == 1) {
1873		/* The SB0410 and SB0413 do not have an AC97 chip. */
1874		err = snd_ca0106_ac97(chip);
1875		if (err < 0)
1876			goto error;
1877	}
1878	err = snd_ca0106_mixer(chip);
1879	if (err < 0)
1880		goto error;
1881
1882	dev_dbg(card->dev, "probe for MIDI channel A ...");
1883	err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1884	if (err < 0)
1885		goto error;
1886	dev_dbg(card->dev, " done.\n");
1887
1888#ifdef CONFIG_PROC_FS
1889	snd_ca0106_proc_init(chip);
1890#endif
1891
1892	err = snd_card_register(card);
1893	if (err < 0)
1894		goto error;
1895
1896	pci_set_drvdata(pci, card);
1897	dev++;
1898	return 0;
1899
1900 error:
1901	snd_card_free(card);
1902	return err;
1903}
1904
1905static void snd_ca0106_remove(struct pci_dev *pci)
1906{
1907	snd_card_free(pci_get_drvdata(pci));
1908}
1909
1910#ifdef CONFIG_PM_SLEEP
1911static int snd_ca0106_suspend(struct device *dev)
1912{
1913	struct snd_card *card = dev_get_drvdata(dev);
1914	struct snd_ca0106 *chip = card->private_data;
1915	int i;
1916
1917	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1918	for (i = 0; i < 4; i++)
1919		snd_pcm_suspend_all(chip->pcm[i]);
1920	if (chip->details->ac97)
1921		snd_ac97_suspend(chip->ac97);
1922	snd_ca0106_mixer_suspend(chip);
1923
1924	ca0106_stop_chip(chip);
1925	return 0;
1926}
1927
1928static int snd_ca0106_resume(struct device *dev)
1929{
1930	struct snd_card *card = dev_get_drvdata(dev);
1931	struct snd_ca0106 *chip = card->private_data;
1932	int i;
1933
1934	ca0106_init_chip(chip, 1);
1935
1936	if (chip->details->ac97)
1937		snd_ac97_resume(chip->ac97);
1938	snd_ca0106_mixer_resume(chip);
1939	if (chip->details->spi_dac) {
1940		for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1941			snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1942	}
1943
1944	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1945	return 0;
1946}
1947
1948static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1949#define SND_CA0106_PM_OPS	&snd_ca0106_pm
1950#else
1951#define SND_CA0106_PM_OPS	NULL
1952#endif
1953
1954// PCI IDs
1955static const struct pci_device_id snd_ca0106_ids[] = {
1956	{ PCI_VDEVICE(CREATIVE, 0x0007), 0 },	/* Audigy LS or Live 24bit */
1957	{ 0, }
1958};
1959MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1960
1961// pci_driver definition
1962static struct pci_driver ca0106_driver = {
1963	.name = KBUILD_MODNAME,
1964	.id_table = snd_ca0106_ids,
1965	.probe = snd_ca0106_probe,
1966	.remove = snd_ca0106_remove,
1967	.driver = {
1968		.pm = SND_CA0106_PM_OPS,
1969	},
1970};
1971
1972module_pci_driver(ca0106_driver);
1973