1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
4 *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
5 *  Version: 0.0.25
6 *
7 *  FEATURES currently supported:
8 *    Front, Rear and Center/LFE.
9 *    Surround40 and Surround51.
10 *    Capture from MIC an LINE IN input.
11 *    SPDIF digital playback of PCM stereo and AC3/DTS works.
12 *    (One can use a standard mono mini-jack to one RCA plugs cable.
13 *     or one can use a standard stereo mini-jack to two RCA plugs cable.
14 *     Plug one of the RCA plugs into the Coax input of the external decoder/receiver.)
15 *    ( In theory one could output 3 different AC3 streams at once, to 3 different SPDIF outputs. )
16 *    Notes on how to capture sound:
17 *      The AC97 is used in the PLAYBACK direction.
18 *      The output from the AC97 chip, instead of reaching the speakers, is fed into the Philips 1361T ADC.
19 *      So, to record from the MIC, set the MIC Playback volume to max,
20 *      unmute the MIC and turn up the MASTER Playback volume.
21 *      So, to prevent feedback when capturing, minimise the "Capture feedback into Playback" volume.
22 *
23 *    The only playback controls that currently do anything are: -
24 *    Analog Front
25 *    Analog Rear
26 *    Analog Center/LFE
27 *    SPDIF Front
28 *    SPDIF Rear
29 *    SPDIF Center/LFE
30 *
31 *    For capture from Mic in or Line in.
32 *    Digital/Analog ( switch must be in Analog mode for CAPTURE. )
33 *
34 *    CAPTURE feedback into PLAYBACK
35 *
36 *  Changelog:
37 *    Support interrupts per period.
38 *    Removed noise from Center/LFE channel when in Analog mode.
39 *    Rename and remove mixer controls.
40 *  0.0.6
41 *    Use separate card based DMA buffer for periods table list.
42 *  0.0.7
43 *    Change remove and rename ctrls into lists.
44 *  0.0.8
45 *    Try to fix capture sources.
46 *  0.0.9
47 *    Fix AC3 output.
48 *    Enable S32_LE format support.
49 *  0.0.10
50 *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
51 *  0.0.11
52 *    Add Model name recognition.
53 *  0.0.12
54 *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
55 *    Remove redundent "voice" handling.
56 *  0.0.13
57 *    Single trigger call for multi channels.
58 *  0.0.14
59 *    Set limits based on what the sound card hardware can do.
60 *    playback periods_min=2, periods_max=8
61 *    capture hw constraints require period_size = n * 64 bytes.
62 *    playback hw constraints require period_size = n * 64 bytes.
63 *  0.0.15
64 *    Minor updates.
65 *  0.0.16
66 *    Implement 192000 sample rate.
67 *  0.0.17
68 *    Add support for SB0410 and SB0413.
69 *  0.0.18
70 *    Modified Copyright message.
71 *  0.0.19
72 *    Finally fix support for SB Live 24 bit. SB0410 and SB0413.
73 *    The output codec needs resetting, otherwise all output is muted.
74 *  0.0.20
75 *    Merge "pci_disable_device(pci);" fixes.
76 *  0.0.21
77 *    Add 4 capture channels. (SPDIF only comes in on channel 0. )
78 *    Add SPDIF capture using optional digital I/O module for SB Live 24bit. (Analog capture does not yet work.)
79 *  0.0.22
80 *    Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
81 *  0.0.23
82 *    Implement support for Line-in capture on SB Live 24bit.
83 *  0.0.24
84 *    Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
85 *  0.0.25
86 *    Powerdown SPI DAC channels when not in use
87 *
88 *  BUGS:
89 *    Some stability problems when unloading the snd-ca0106 kernel module.
90 *    --
91 *
92 *  TODO:
93 *    4 Capture channels, only one implemented so far.
94 *    Other capture rates apart from 48khz not implemented.
95 *    MIDI
96 *    --
97 *  GENERAL INFO:
98 *    Model: SB0310
99 *    P17 Chip: CA0106-DAT
100 *    AC97 Codec: STAC 9721
101 *    ADC: Philips 1361T (Stereo 24bit)
102 *    DAC: WM8746EDS (6-channel, 24bit, 192Khz)
103 *
104 *  GENERAL INFO:
105 *    Model: SB0410
106 *    P17 Chip: CA0106-DAT
107 *    AC97 Codec: None
108 *    ADC: WM8775EDS (4 Channel)
109 *    DAC: CS4382 (114 dB, 24-Bit, 192 kHz, 8-Channel D/A Converter with DSD Support)
110 *    SPDIF Out control switches between Mic in and SPDIF out.
111 *    No sound out or mic input working yet.
112 *
113 *  GENERAL INFO:
114 *    Model: SB0413
115 *    P17 Chip: CA0106-DAT
116 *    AC97 Codec: None.
117 *    ADC: Unknown
118 *    DAC: Unknown
119 *    Trying to handle it like the SB0410.
120 *
121 *  This code was initially based on code from ALSA's emu10k1x.c which is:
122 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
123 */
124#include <linux/delay.h>
125#include <linux/init.h>
126#include <linux/interrupt.h>
127#include <linux/pci.h>
128#include <linux/slab.h>
129#include <linux/module.h>
130#include <linux/dma-mapping.h>
131#include <sound/core.h>
132#include <sound/initval.h>
133#include <sound/pcm.h>
134#include <sound/ac97_codec.h>
135#include <sound/info.h>
136
137MODULE_AUTHOR("James Courtier-Dutton <James@superbug.demon.co.uk>");
138MODULE_DESCRIPTION("CA0106");
139MODULE_LICENSE("GPL");
140
141// module parameters (see "Module Parameters")
142static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
143static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
144static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
145static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
146
147module_param_array(index, int, NULL, 0444);
148MODULE_PARM_DESC(index, "Index value for the CA0106 soundcard.");
149module_param_array(id, charp, NULL, 0444);
150MODULE_PARM_DESC(id, "ID string for the CA0106 soundcard.");
151module_param_array(enable, bool, NULL, 0444);
152MODULE_PARM_DESC(enable, "Enable the CA0106 soundcard.");
153module_param_array(subsystem, uint, NULL, 0444);
154MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
155
156#include "ca0106.h"
157
158static const struct snd_ca0106_details ca0106_chip_details[] = {
159	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
160	 /* It is really just a normal SB Live 24bit. */
161	 /* Tested:
162	  * See ALSA bug#3251
163	  */
164	 { .serial = 0x10131102,
165	   .name   = "X-Fi Extreme Audio [SBxxxx]",
166	   .gpio_type = 1,
167	   .i2c_adc = 1 } ,
168	 /* Sound Blaster X-Fi Extreme Audio. This does not have an AC97. 53SB079000000 */
169	 /* It is really just a normal SB Live 24bit. */
170	 /*
171 	  * CTRL:CA0111-WTLF
172	  * ADC: WM8775SEDS
173	  * DAC: CS4382-KQZ
174	  */
175	 /* Tested:
176	  * Playback on front, rear, center/lfe speakers
177	  * Capture from Mic in.
178	  * Not-Tested:
179	  * Capture from Line in.
180	  * Playback to digital out.
181	  */
182	 { .serial = 0x10121102,
183	   .name   = "X-Fi Extreme Audio [SB0790]",
184	   .gpio_type = 1,
185	   .i2c_adc = 1 } ,
186	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
187	 /* AudigyLS[SB0310] */
188	 { .serial = 0x10021102,
189	   .name   = "AudigyLS [SB0310]",
190	   .ac97   = 1 } ,
191	 /* Unknown AudigyLS that also says SB0310 on it */
192	 { .serial = 0x10051102,
193	   .name   = "AudigyLS [SB0310b]",
194	   .ac97   = 1 } ,
195	 /* New Sound Blaster Live! 7.1 24bit. This does not have an AC97. 53SB041000001 */
196	 { .serial = 0x10061102,
197	   .name   = "Live! 7.1 24bit [SB0410]",
198	   .gpio_type = 1,
199	   .i2c_adc = 1 } ,
200	 /* New Dell Sound Blaster Live! 7.1 24bit. This does not have an AC97.  */
201	 { .serial = 0x10071102,
202	   .name   = "Live! 7.1 24bit [SB0413]",
203	   .gpio_type = 1,
204	   .i2c_adc = 1 } ,
205	 /* New Audigy SE. Has a different DAC. */
206	 /* SB0570:
207	  * CTRL:CA0106-DAT
208	  * ADC: WM8775EDS
209	  * DAC: WM8768GEDS
210	  */
211	 { .serial = 0x100a1102,
212	   .name   = "Audigy SE [SB0570]",
213	   .gpio_type = 1,
214	   .i2c_adc = 1,
215	   .spi_dac = 0x4021 } ,
216	 /* New Audigy LS. Has a different DAC. */
217	 /* SB0570:
218	  * CTRL:CA0106-DAT
219	  * ADC: WM8775EDS
220	  * DAC: WM8768GEDS
221	  */
222	 { .serial = 0x10111102,
223	   .name   = "Audigy SE OEM [SB0570a]",
224	   .gpio_type = 1,
225	   .i2c_adc = 1,
226	   .spi_dac = 0x4021 } ,
227	/* Sound Blaster 5.1vx
228	 * Tested: Playback on front, rear, center/lfe speakers
229	 * Not-Tested: Capture
230	 */
231	{ .serial = 0x10041102,
232	  .name   = "Sound Blaster 5.1vx [SB1070]",
233	  .gpio_type = 1,
234	  .i2c_adc = 0,
235	  .spi_dac = 0x0124
236	 } ,
237	 /* MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97 */
238	 /* SB0438
239	  * CTRL:CA0106-DAT
240	  * ADC: WM8775SEDS
241	  * DAC: CS4382-KQZ
242	  */
243	 { .serial = 0x10091462,
244	   .name   = "MSI K8N Diamond MB [SB0438]",
245	   .gpio_type = 2,
246	   .i2c_adc = 1 } ,
247	 /* MSI K8N Diamond PLUS MB */
248	 { .serial = 0x10091102,
249	   .name   = "MSI K8N Diamond MB",
250	   .gpio_type = 2,
251	   .i2c_adc = 1,
252	   .spi_dac = 0x4021 } ,
253	/* Giga-byte GA-G1975X mobo
254	 * Novell bnc#395807
255	 */
256	/* FIXME: the GPIO and I2C setting aren't tested well */
257	{ .serial = 0x1458a006,
258	  .name = "Giga-byte GA-G1975X",
259	  .gpio_type = 1,
260	  .i2c_adc = 1 },
261	 /* Shuttle XPC SD31P which has an onboard Creative Labs
262	  * Sound Blaster Live! 24-bit EAX
263	  * high-definition 7.1 audio processor".
264	  * Added using info from andrewvegan in alsa bug #1298
265	  */
266	 { .serial = 0x30381297,
267	   .name   = "Shuttle XPC SD31P [SD31P]",
268	   .gpio_type = 1,
269	   .i2c_adc = 1 } ,
270	/* Shuttle XPC SD11G5 which has an onboard Creative Labs
271	 * Sound Blaster Live! 24-bit EAX
272	 * high-definition 7.1 audio processor".
273	 * Fixes ALSA bug#1600
274         */
275	{ .serial = 0x30411297,
276	  .name = "Shuttle XPC SD11G5 [SD11G5]",
277	  .gpio_type = 1,
278	  .i2c_adc = 1 } ,
279	 { .serial = 0,
280	   .name   = "AudigyLS [Unknown]" }
281};
282
283/* hardware definition */
284static const struct snd_pcm_hardware snd_ca0106_playback_hw = {
285	.info =			SNDRV_PCM_INFO_MMAP |
286				SNDRV_PCM_INFO_INTERLEAVED |
287				SNDRV_PCM_INFO_BLOCK_TRANSFER |
288				SNDRV_PCM_INFO_MMAP_VALID |
289				SNDRV_PCM_INFO_SYNC_START,
290	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
291	.rates =		(SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |
292				 SNDRV_PCM_RATE_192000),
293	.rate_min =		48000,
294	.rate_max =		192000,
295	.channels_min =		2,  //1,
296	.channels_max =		2,  //6,
297	.buffer_bytes_max =	((65536 - 64) * 8),
298	.period_bytes_min =	64,
299	.period_bytes_max =	(65536 - 64),
300	.periods_min =		2,
301	.periods_max =		8,
302	.fifo_size =		0,
303};
304
305static const struct snd_pcm_hardware snd_ca0106_capture_hw = {
306	.info =			(SNDRV_PCM_INFO_MMAP |
307				 SNDRV_PCM_INFO_INTERLEAVED |
308				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
309				 SNDRV_PCM_INFO_MMAP_VALID),
310	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
311#if 0 /* FIXME: looks like 44.1kHz capture causes noisy output on 48kHz */
312	.rates =		(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
313				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
314	.rate_min =		44100,
315#else
316	.rates =		(SNDRV_PCM_RATE_48000 |
317				 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000),
318	.rate_min =		48000,
319#endif /* FIXME */
320	.rate_max =		192000,
321	.channels_min =		2,
322	.channels_max =		2,
323	.buffer_bytes_max =	65536 - 128,
324	.period_bytes_min =	64,
325	.period_bytes_max =	32768 - 64,
326	.periods_min =		2,
327	.periods_max =		2,
328	.fifo_size =		0,
329};
330
331unsigned int snd_ca0106_ptr_read(struct snd_ca0106 * emu,
332					  unsigned int reg,
333					  unsigned int chn)
334{
335	unsigned long flags;
336	unsigned int regptr, val;
337
338	regptr = (reg << 16) | chn;
339
340	spin_lock_irqsave(&emu->emu_lock, flags);
341	outl(regptr, emu->port + CA0106_PTR);
342	val = inl(emu->port + CA0106_DATA);
343	spin_unlock_irqrestore(&emu->emu_lock, flags);
344	return val;
345}
346
347void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
348				   unsigned int reg,
349				   unsigned int chn,
350				   unsigned int data)
351{
352	unsigned int regptr;
353	unsigned long flags;
354
355	regptr = (reg << 16) | chn;
356
357	spin_lock_irqsave(&emu->emu_lock, flags);
358	outl(regptr, emu->port + CA0106_PTR);
359	outl(data, emu->port + CA0106_DATA);
360	spin_unlock_irqrestore(&emu->emu_lock, flags);
361}
362
363int snd_ca0106_spi_write(struct snd_ca0106 * emu,
364				   unsigned int data)
365{
366	unsigned int reset, set;
367	unsigned int reg, tmp;
368	int n, result;
369	reg = SPI;
370	if (data > 0xffff) /* Only 16bit values allowed */
371		return 1;
372	tmp = snd_ca0106_ptr_read(emu, reg, 0);
373	reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
374	set = reset | 0x10000; /* Set xxx1xxxx */
375	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
376	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* write post */
377	snd_ca0106_ptr_write(emu, reg, 0, set | data);
378	result = 1;
379	/* Wait for status bit to return to 0 */
380	for (n = 0; n < 100; n++) {
381		udelay(10);
382		tmp = snd_ca0106_ptr_read(emu, reg, 0);
383		if (!(tmp & 0x10000)) {
384			result = 0;
385			break;
386		}
387	}
388	if (result) /* Timed out */
389		return 1;
390	snd_ca0106_ptr_write(emu, reg, 0, reset | data);
391	tmp = snd_ca0106_ptr_read(emu, reg, 0); /* Write post */
392	return 0;
393}
394
395/* The ADC does not support i2c read, so only write is implemented */
396int snd_ca0106_i2c_write(struct snd_ca0106 *emu,
397				u32 reg,
398				u32 value)
399{
400	u32 tmp;
401	int timeout = 0;
402	int status;
403	int retry;
404	if ((reg > 0x7f) || (value > 0x1ff)) {
405		dev_err(emu->card->dev, "i2c_write: invalid values.\n");
406		return -EINVAL;
407	}
408
409	tmp = reg << 25 | value << 16;
410	/*
411	dev_dbg(emu->card->dev, "I2C-write:reg=0x%x, value=0x%x\n", reg, value);
412	*/
413	/* Not sure what this I2C channel controls. */
414	/* snd_ca0106_ptr_write(emu, I2C_D0, 0, tmp); */
415
416	/* This controls the I2C connected to the WM8775 ADC Codec */
417	snd_ca0106_ptr_write(emu, I2C_D1, 0, tmp);
418
419	for (retry = 0; retry < 10; retry++) {
420		/* Send the data to i2c */
421		//tmp = snd_ca0106_ptr_read(emu, I2C_A, 0);
422		//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
423		tmp = 0;
424		tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
425		snd_ca0106_ptr_write(emu, I2C_A, 0, tmp);
426
427		/* Wait till the transaction ends */
428		while (1) {
429			status = snd_ca0106_ptr_read(emu, I2C_A, 0);
430			/*dev_dbg(emu->card->dev, "I2C:status=0x%x\n", status);*/
431			timeout++;
432			if ((status & I2C_A_ADC_START) == 0)
433				break;
434
435			if (timeout > 1000)
436				break;
437		}
438		//Read back and see if the transaction is successful
439		if ((status & I2C_A_ADC_ABORT) == 0)
440			break;
441	}
442
443	if (retry == 10) {
444		dev_err(emu->card->dev, "Writing to ADC failed!\n");
445		return -EINVAL;
446	}
447
448    	return 0;
449}
450
451
452static void snd_ca0106_intr_enable(struct snd_ca0106 *emu, unsigned int intrenb)
453{
454	unsigned long flags;
455	unsigned int intr_enable;
456
457	spin_lock_irqsave(&emu->emu_lock, flags);
458	intr_enable = inl(emu->port + CA0106_INTE) | intrenb;
459	outl(intr_enable, emu->port + CA0106_INTE);
460	spin_unlock_irqrestore(&emu->emu_lock, flags);
461}
462
463static void snd_ca0106_intr_disable(struct snd_ca0106 *emu, unsigned int intrenb)
464{
465	unsigned long flags;
466	unsigned int intr_enable;
467
468	spin_lock_irqsave(&emu->emu_lock, flags);
469	intr_enable = inl(emu->port + CA0106_INTE) & ~intrenb;
470	outl(intr_enable, emu->port + CA0106_INTE);
471	spin_unlock_irqrestore(&emu->emu_lock, flags);
472}
473
474
475static void snd_ca0106_pcm_free_substream(struct snd_pcm_runtime *runtime)
476{
477	kfree(runtime->private_data);
478}
479
480static const int spi_dacd_reg[] = {
481	SPI_DACD0_REG,
482	SPI_DACD1_REG,
483	SPI_DACD2_REG,
484	0,
485	SPI_DACD4_REG,
486};
487static const int spi_dacd_bit[] = {
488	SPI_DACD0_BIT,
489	SPI_DACD1_BIT,
490	SPI_DACD2_BIT,
491	0,
492	SPI_DACD4_BIT,
493};
494
495static void restore_spdif_bits(struct snd_ca0106 *chip, int idx)
496{
497	if (chip->spdif_str_bits[idx] != chip->spdif_bits[idx]) {
498		chip->spdif_str_bits[idx] = chip->spdif_bits[idx];
499		snd_ca0106_ptr_write(chip, SPCS0 + idx, 0,
500				     chip->spdif_str_bits[idx]);
501	}
502}
503
504static int snd_ca0106_channel_dac(struct snd_ca0106 *chip,
505				  const struct snd_ca0106_details *details,
506				  int channel_id)
507{
508	switch (channel_id) {
509	case PCM_FRONT_CHANNEL:
510		return (details->spi_dac & 0xf000) >> (4 * 3);
511	case PCM_REAR_CHANNEL:
512		return (details->spi_dac & 0x0f00) >> (4 * 2);
513	case PCM_CENTER_LFE_CHANNEL:
514		return (details->spi_dac & 0x00f0) >> (4 * 1);
515	case PCM_UNKNOWN_CHANNEL:
516		return (details->spi_dac & 0x000f) >> (4 * 0);
517	default:
518		dev_dbg(chip->card->dev, "ca0106: unknown channel_id %d\n",
519			   channel_id);
520	}
521	return 0;
522}
523
524static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
525				    int power)
526{
527	if (chip->details->spi_dac) {
528		const int dac = snd_ca0106_channel_dac(chip, chip->details,
529						       channel_id);
530		const int reg = spi_dacd_reg[dac];
531		const int bit = spi_dacd_bit[dac];
532
533		if (power)
534			/* Power up */
535			chip->spi_dac_reg[reg] &= ~bit;
536		else
537			/* Power down */
538			chip->spi_dac_reg[reg] |= bit;
539		if (snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]) != 0)
540			return -ENXIO;
541	}
542	return 0;
543}
544
545/* open_playback callback */
546static int snd_ca0106_pcm_open_playback_channel(struct snd_pcm_substream *substream,
547						int channel_id)
548{
549	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
550        struct snd_ca0106_channel *channel = &(chip->playback_channels[channel_id]);
551	struct snd_ca0106_pcm *epcm;
552	struct snd_pcm_runtime *runtime = substream->runtime;
553	int err;
554
555	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
556
557	if (epcm == NULL)
558		return -ENOMEM;
559	epcm->emu = chip;
560	epcm->substream = substream;
561        epcm->channel_id=channel_id;
562
563	runtime->private_data = epcm;
564	runtime->private_free = snd_ca0106_pcm_free_substream;
565
566	runtime->hw = snd_ca0106_playback_hw;
567
568        channel->emu = chip;
569        channel->number = channel_id;
570
571	channel->use = 1;
572	/*
573	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
574	       channel_id, chip, channel);
575	*/
576        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
577	channel->epcm = epcm;
578	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
579	if (err < 0)
580                return err;
581	err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
582	if (err < 0)
583                return err;
584	snd_pcm_set_sync(substream);
585
586	/* Front channel dac should already be on */
587	if (channel_id != PCM_FRONT_CHANNEL) {
588		err = snd_ca0106_pcm_power_dac(chip, channel_id, 1);
589		if (err < 0)
590			return err;
591	}
592
593	restore_spdif_bits(chip, channel_id);
594
595	return 0;
596}
597
598/* close callback */
599static int snd_ca0106_pcm_close_playback(struct snd_pcm_substream *substream)
600{
601	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
602	struct snd_pcm_runtime *runtime = substream->runtime;
603        struct snd_ca0106_pcm *epcm = runtime->private_data;
604	chip->playback_channels[epcm->channel_id].use = 0;
605
606	restore_spdif_bits(chip, epcm->channel_id);
607
608	/* Front channel dac should stay on */
609	if (epcm->channel_id != PCM_FRONT_CHANNEL) {
610		int err;
611		err = snd_ca0106_pcm_power_dac(chip, epcm->channel_id, 0);
612		if (err < 0)
613			return err;
614	}
615
616	/* FIXME: maybe zero others */
617	return 0;
618}
619
620static int snd_ca0106_pcm_open_playback_front(struct snd_pcm_substream *substream)
621{
622	return snd_ca0106_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
623}
624
625static int snd_ca0106_pcm_open_playback_center_lfe(struct snd_pcm_substream *substream)
626{
627	return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);
628}
629
630static int snd_ca0106_pcm_open_playback_unknown(struct snd_pcm_substream *substream)
631{
632	return snd_ca0106_pcm_open_playback_channel(substream, PCM_UNKNOWN_CHANNEL);
633}
634
635static int snd_ca0106_pcm_open_playback_rear(struct snd_pcm_substream *substream)
636{
637	return snd_ca0106_pcm_open_playback_channel(substream, PCM_REAR_CHANNEL);
638}
639
640/* open_capture callback */
641static int snd_ca0106_pcm_open_capture_channel(struct snd_pcm_substream *substream,
642					       int channel_id)
643{
644	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
645        struct snd_ca0106_channel *channel = &(chip->capture_channels[channel_id]);
646	struct snd_ca0106_pcm *epcm;
647	struct snd_pcm_runtime *runtime = substream->runtime;
648	int err;
649
650	epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
651	if (!epcm)
652		return -ENOMEM;
653
654	epcm->emu = chip;
655	epcm->substream = substream;
656        epcm->channel_id=channel_id;
657
658	runtime->private_data = epcm;
659	runtime->private_free = snd_ca0106_pcm_free_substream;
660
661	runtime->hw = snd_ca0106_capture_hw;
662
663        channel->emu = chip;
664        channel->number = channel_id;
665
666	channel->use = 1;
667	/*
668	dev_dbg(chip->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
669	       channel_id, chip, channel);
670	*/
671        //channel->interrupt = snd_ca0106_pcm_channel_interrupt;
672        channel->epcm = epcm;
673	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
674	if (err < 0)
675                return err;
676	//snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_capture_period_sizes);
677	err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
678	if (err < 0)
679                return err;
680	return 0;
681}
682
683/* close callback */
684static int snd_ca0106_pcm_close_capture(struct snd_pcm_substream *substream)
685{
686	struct snd_ca0106 *chip = snd_pcm_substream_chip(substream);
687	struct snd_pcm_runtime *runtime = substream->runtime;
688        struct snd_ca0106_pcm *epcm = runtime->private_data;
689	chip->capture_channels[epcm->channel_id].use = 0;
690	/* FIXME: maybe zero others */
691	return 0;
692}
693
694static int snd_ca0106_pcm_open_0_capture(struct snd_pcm_substream *substream)
695{
696	return snd_ca0106_pcm_open_capture_channel(substream, 0);
697}
698
699static int snd_ca0106_pcm_open_1_capture(struct snd_pcm_substream *substream)
700{
701	return snd_ca0106_pcm_open_capture_channel(substream, 1);
702}
703
704static int snd_ca0106_pcm_open_2_capture(struct snd_pcm_substream *substream)
705{
706	return snd_ca0106_pcm_open_capture_channel(substream, 2);
707}
708
709static int snd_ca0106_pcm_open_3_capture(struct snd_pcm_substream *substream)
710{
711	return snd_ca0106_pcm_open_capture_channel(substream, 3);
712}
713
714/* prepare playback callback */
715static int snd_ca0106_pcm_prepare_playback(struct snd_pcm_substream *substream)
716{
717	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
718	struct snd_pcm_runtime *runtime = substream->runtime;
719	struct snd_ca0106_pcm *epcm = runtime->private_data;
720	int channel = epcm->channel_id;
721	u32 *table_base = (u32 *)(emu->buffer->area+(8*16*channel));
722	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
723	u32 hcfg_mask = HCFG_PLAYBACK_S32_LE;
724	u32 hcfg_set = 0x00000000;
725	u32 hcfg;
726	u32 reg40_mask = 0x30000 << (channel<<1);
727	u32 reg40_set = 0;
728	u32 reg40;
729	/* FIXME: Depending on mixer selection of SPDIF out or not, select the spdif rate or the DAC rate. */
730	u32 reg71_mask = 0x03030000 ; /* Global. Set SPDIF rate. We only support 44100 to spdif, not to DAC. */
731	u32 reg71_set = 0;
732	u32 reg71;
733	int i;
734
735#if 0 /* debug */
736	dev_dbg(emu->card->dev,
737		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
738		   "channels=%d, buffer_size=%ld, period_size=%ld, "
739		   "periods=%u, frames_to_bytes=%d\n",
740		   channel, runtime->rate, runtime->format,
741		   runtime->channels, runtime->buffer_size,
742		   runtime->period_size, runtime->periods,
743		   frames_to_bytes(runtime, 1));
744	dev_dbg(emu->card->dev,
745		"dma_addr=%x, dma_area=%p, table_base=%p\n",
746		   runtime->dma_addr, runtime->dma_area, table_base);
747	dev_dbg(emu->card->dev,
748		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
749		   emu->buffer->addr, emu->buffer->area, emu->buffer->bytes);
750#endif /* debug */
751	/* Rate can be set per channel. */
752	/* reg40 control host to fifo */
753	/* reg71 controls DAC rate. */
754	switch (runtime->rate) {
755	case 44100:
756		reg40_set = 0x10000 << (channel<<1);
757		reg71_set = 0x01010000;
758		break;
759        case 48000:
760		reg40_set = 0;
761		reg71_set = 0;
762		break;
763	case 96000:
764		reg40_set = 0x20000 << (channel<<1);
765		reg71_set = 0x02020000;
766		break;
767	case 192000:
768		reg40_set = 0x30000 << (channel<<1);
769		reg71_set = 0x03030000;
770		break;
771	default:
772		reg40_set = 0;
773		reg71_set = 0;
774		break;
775	}
776	/* Format is a global setting */
777	/* FIXME: Only let the first channel accessed set this. */
778	switch (runtime->format) {
779	case SNDRV_PCM_FORMAT_S16_LE:
780		hcfg_set = 0;
781		break;
782	case SNDRV_PCM_FORMAT_S32_LE:
783		hcfg_set = HCFG_PLAYBACK_S32_LE;
784		break;
785	default:
786		hcfg_set = 0;
787		break;
788	}
789	hcfg = inl(emu->port + CA0106_HCFG) ;
790	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
791	outl(hcfg, emu->port + CA0106_HCFG);
792	reg40 = snd_ca0106_ptr_read(emu, 0x40, 0);
793	reg40 = (reg40 & ~reg40_mask) | reg40_set;
794	snd_ca0106_ptr_write(emu, 0x40, 0, reg40);
795	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
796	reg71 = (reg71 & ~reg71_mask) | reg71_set;
797	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
798
799	/* FIXME: Check emu->buffer->size before actually writing to it. */
800        for(i=0; i < runtime->periods; i++) {
801		table_base[i*2] = runtime->dma_addr + (i * period_size_bytes);
802		table_base[i*2+1] = period_size_bytes << 16;
803	}
804
805	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_ADDR, channel, emu->buffer->addr+(8*16*channel));
806	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
807	snd_ca0106_ptr_write(emu, PLAYBACK_LIST_PTR, channel, 0);
808	snd_ca0106_ptr_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
809	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
810	/* FIXME  test what 0 bytes does. */
811	snd_ca0106_ptr_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
812	snd_ca0106_ptr_write(emu, PLAYBACK_POINTER, channel, 0);
813	snd_ca0106_ptr_write(emu, 0x07, channel, 0x0);
814	snd_ca0106_ptr_write(emu, 0x08, channel, 0);
815        snd_ca0106_ptr_write(emu, PLAYBACK_MUTE, 0x0, 0x0); /* Unmute output */
816#if 0
817	snd_ca0106_ptr_write(emu, SPCS0, 0,
818			       SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
819			       SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
820			       SPCS_GENERATIONSTATUS | 0x00001200 |
821			       0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT );
822#endif
823
824	return 0;
825}
826
827/* prepare capture callback */
828static int snd_ca0106_pcm_prepare_capture(struct snd_pcm_substream *substream)
829{
830	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
831	struct snd_pcm_runtime *runtime = substream->runtime;
832	struct snd_ca0106_pcm *epcm = runtime->private_data;
833	int channel = epcm->channel_id;
834	u32 hcfg_mask = HCFG_CAPTURE_S32_LE;
835	u32 hcfg_set = 0x00000000;
836	u32 hcfg;
837	u32 over_sampling=0x2;
838	u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */
839	u32 reg71_set = 0;
840	u32 reg71;
841
842#if 0 /* debug */
843	dev_dbg(emu->card->dev,
844		   "prepare:channel_number=%d, rate=%d, format=0x%x, "
845		   "channels=%d, buffer_size=%ld, period_size=%ld, "
846		   "periods=%u, frames_to_bytes=%d\n",
847		   channel, runtime->rate, runtime->format,
848		   runtime->channels, runtime->buffer_size,
849		   runtime->period_size, runtime->periods,
850		   frames_to_bytes(runtime, 1));
851	dev_dbg(emu->card->dev,
852		"dma_addr=%x, dma_area=%p, table_base=%p\n",
853		   runtime->dma_addr, runtime->dma_area, table_base);
854	dev_dbg(emu->card->dev,
855		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
856		   emu->buffer->addr, emu->buffer->area, emu->buffer->bytes);
857#endif /* debug */
858	/* reg71 controls ADC rate. */
859	switch (runtime->rate) {
860	case 44100:
861		reg71_set = 0x00004000;
862		break;
863        case 48000:
864		reg71_set = 0;
865		break;
866	case 96000:
867		reg71_set = 0x00008000;
868		over_sampling=0xa;
869		break;
870	case 192000:
871		reg71_set = 0x0000c000;
872		over_sampling=0xa;
873		break;
874	default:
875		reg71_set = 0;
876		break;
877	}
878	/* Format is a global setting */
879	/* FIXME: Only let the first channel accessed set this. */
880	switch (runtime->format) {
881	case SNDRV_PCM_FORMAT_S16_LE:
882		hcfg_set = 0;
883		break;
884	case SNDRV_PCM_FORMAT_S32_LE:
885		hcfg_set = HCFG_CAPTURE_S32_LE;
886		break;
887	default:
888		hcfg_set = 0;
889		break;
890	}
891	hcfg = inl(emu->port + CA0106_HCFG) ;
892	hcfg = (hcfg & ~hcfg_mask) | hcfg_set;
893	outl(hcfg, emu->port + CA0106_HCFG);
894	reg71 = snd_ca0106_ptr_read(emu, 0x71, 0);
895	reg71 = (reg71 & ~reg71_mask) | reg71_set;
896	snd_ca0106_ptr_write(emu, 0x71, 0, reg71);
897        if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */
898	        snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */
899	}
900
901
902	/*
903	dev_dbg(emu->card->dev,
904	       "prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, "
905	       "buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",
906	       channel, runtime->rate, runtime->format, runtime->channels,
907	       runtime->buffer_size, runtime->period_size,
908	       frames_to_bytes(runtime, 1));
909	*/
910	snd_ca0106_ptr_write(emu, 0x13, channel, 0);
911	snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
912	snd_ca0106_ptr_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
913	snd_ca0106_ptr_write(emu, CAPTURE_POINTER, channel, 0);
914
915	return 0;
916}
917
918/* trigger_playback callback */
919static int snd_ca0106_pcm_trigger_playback(struct snd_pcm_substream *substream,
920				    int cmd)
921{
922	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
923	struct snd_pcm_runtime *runtime;
924	struct snd_ca0106_pcm *epcm;
925	int channel;
926	int result = 0;
927        struct snd_pcm_substream *s;
928	u32 basic = 0;
929	u32 extended = 0;
930	u32 bits;
931	int running = 0;
932
933	switch (cmd) {
934	case SNDRV_PCM_TRIGGER_START:
935	case SNDRV_PCM_TRIGGER_RESUME:
936		running = 1;
937		break;
938	case SNDRV_PCM_TRIGGER_STOP:
939	case SNDRV_PCM_TRIGGER_SUSPEND:
940	default:
941		running = 0;
942		break;
943	}
944        snd_pcm_group_for_each_entry(s, substream) {
945		if (snd_pcm_substream_chip(s) != emu ||
946		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
947			continue;
948		runtime = s->runtime;
949		epcm = runtime->private_data;
950		channel = epcm->channel_id;
951		/* dev_dbg(emu->card->dev, "channel=%d\n", channel); */
952		epcm->running = running;
953		basic |= (0x1 << channel);
954		extended |= (0x10 << channel);
955                snd_pcm_trigger_done(s, substream);
956        }
957	/* dev_dbg(emu->card->dev, "basic=0x%x, extended=0x%x\n",basic, extended); */
958
959	switch (cmd) {
960	case SNDRV_PCM_TRIGGER_START:
961	case SNDRV_PCM_TRIGGER_RESUME:
962		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
963		bits |= extended;
964		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
965		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
966		bits |= basic;
967		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
968		break;
969	case SNDRV_PCM_TRIGGER_STOP:
970	case SNDRV_PCM_TRIGGER_SUSPEND:
971		bits = snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0);
972		bits &= ~basic;
973		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, bits);
974		bits = snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0);
975		bits &= ~extended;
976		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, bits);
977		break;
978	default:
979		result = -EINVAL;
980		break;
981	}
982	return result;
983}
984
985/* trigger_capture callback */
986static int snd_ca0106_pcm_trigger_capture(struct snd_pcm_substream *substream,
987				    int cmd)
988{
989	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
990	struct snd_pcm_runtime *runtime = substream->runtime;
991	struct snd_ca0106_pcm *epcm = runtime->private_data;
992	int channel = epcm->channel_id;
993	int result = 0;
994
995	switch (cmd) {
996	case SNDRV_PCM_TRIGGER_START:
997		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
998		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
999		epcm->running = 1;
1000		break;
1001	case SNDRV_PCM_TRIGGER_STOP:
1002		snd_ca0106_ptr_write(emu, BASIC_INTERRUPT, 0, snd_ca0106_ptr_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
1003		snd_ca0106_ptr_write(emu, EXTENDED_INT_MASK, 0, snd_ca0106_ptr_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
1004		epcm->running = 0;
1005		break;
1006	default:
1007		result = -EINVAL;
1008		break;
1009	}
1010	return result;
1011}
1012
1013/* pointer_playback callback */
1014static snd_pcm_uframes_t
1015snd_ca0106_pcm_pointer_playback(struct snd_pcm_substream *substream)
1016{
1017	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1018	struct snd_pcm_runtime *runtime = substream->runtime;
1019	struct snd_ca0106_pcm *epcm = runtime->private_data;
1020	unsigned int ptr, prev_ptr;
1021	int channel = epcm->channel_id;
1022	int timeout = 10;
1023
1024	if (!epcm->running)
1025		return 0;
1026
1027	prev_ptr = -1;
1028	do {
1029		ptr = snd_ca0106_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
1030		ptr = (ptr >> 3) * runtime->period_size;
1031		ptr += bytes_to_frames(runtime,
1032			snd_ca0106_ptr_read(emu, PLAYBACK_POINTER, channel));
1033		if (ptr >= runtime->buffer_size)
1034			ptr -= runtime->buffer_size;
1035		if (prev_ptr == ptr)
1036			return ptr;
1037		prev_ptr = ptr;
1038	} while (--timeout);
1039	dev_warn(emu->card->dev, "ca0106: unstable DMA pointer!\n");
1040	return 0;
1041}
1042
1043/* pointer_capture callback */
1044static snd_pcm_uframes_t
1045snd_ca0106_pcm_pointer_capture(struct snd_pcm_substream *substream)
1046{
1047	struct snd_ca0106 *emu = snd_pcm_substream_chip(substream);
1048	struct snd_pcm_runtime *runtime = substream->runtime;
1049	struct snd_ca0106_pcm *epcm = runtime->private_data;
1050	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
1051	int channel = epcm->channel_id;
1052
1053	if (!epcm->running)
1054		return 0;
1055
1056	ptr1 = snd_ca0106_ptr_read(emu, CAPTURE_POINTER, channel);
1057	ptr2 = bytes_to_frames(runtime, ptr1);
1058	ptr=ptr2;
1059        if (ptr >= runtime->buffer_size)
1060		ptr -= runtime->buffer_size;
1061	/*
1062	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
1063	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
1064	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
1065	       (int)runtime->period_size, (int)runtime->frame_bits,
1066	       (int)runtime->rate);
1067	*/
1068	return ptr;
1069}
1070
1071/* operators */
1072static const struct snd_pcm_ops snd_ca0106_playback_front_ops = {
1073	.open =        snd_ca0106_pcm_open_playback_front,
1074	.close =       snd_ca0106_pcm_close_playback,
1075	.prepare =     snd_ca0106_pcm_prepare_playback,
1076	.trigger =     snd_ca0106_pcm_trigger_playback,
1077	.pointer =     snd_ca0106_pcm_pointer_playback,
1078};
1079
1080static const struct snd_pcm_ops snd_ca0106_capture_0_ops = {
1081	.open =        snd_ca0106_pcm_open_0_capture,
1082	.close =       snd_ca0106_pcm_close_capture,
1083	.prepare =     snd_ca0106_pcm_prepare_capture,
1084	.trigger =     snd_ca0106_pcm_trigger_capture,
1085	.pointer =     snd_ca0106_pcm_pointer_capture,
1086};
1087
1088static const struct snd_pcm_ops snd_ca0106_capture_1_ops = {
1089	.open =        snd_ca0106_pcm_open_1_capture,
1090	.close =       snd_ca0106_pcm_close_capture,
1091	.prepare =     snd_ca0106_pcm_prepare_capture,
1092	.trigger =     snd_ca0106_pcm_trigger_capture,
1093	.pointer =     snd_ca0106_pcm_pointer_capture,
1094};
1095
1096static const struct snd_pcm_ops snd_ca0106_capture_2_ops = {
1097	.open =        snd_ca0106_pcm_open_2_capture,
1098	.close =       snd_ca0106_pcm_close_capture,
1099	.prepare =     snd_ca0106_pcm_prepare_capture,
1100	.trigger =     snd_ca0106_pcm_trigger_capture,
1101	.pointer =     snd_ca0106_pcm_pointer_capture,
1102};
1103
1104static const struct snd_pcm_ops snd_ca0106_capture_3_ops = {
1105	.open =        snd_ca0106_pcm_open_3_capture,
1106	.close =       snd_ca0106_pcm_close_capture,
1107	.prepare =     snd_ca0106_pcm_prepare_capture,
1108	.trigger =     snd_ca0106_pcm_trigger_capture,
1109	.pointer =     snd_ca0106_pcm_pointer_capture,
1110};
1111
1112static const struct snd_pcm_ops snd_ca0106_playback_center_lfe_ops = {
1113        .open =         snd_ca0106_pcm_open_playback_center_lfe,
1114        .close =        snd_ca0106_pcm_close_playback,
1115        .prepare =      snd_ca0106_pcm_prepare_playback,
1116        .trigger =      snd_ca0106_pcm_trigger_playback,
1117        .pointer =      snd_ca0106_pcm_pointer_playback,
1118};
1119
1120static const struct snd_pcm_ops snd_ca0106_playback_unknown_ops = {
1121        .open =         snd_ca0106_pcm_open_playback_unknown,
1122        .close =        snd_ca0106_pcm_close_playback,
1123        .prepare =      snd_ca0106_pcm_prepare_playback,
1124        .trigger =      snd_ca0106_pcm_trigger_playback,
1125        .pointer =      snd_ca0106_pcm_pointer_playback,
1126};
1127
1128static const struct snd_pcm_ops snd_ca0106_playback_rear_ops = {
1129        .open =         snd_ca0106_pcm_open_playback_rear,
1130        .close =        snd_ca0106_pcm_close_playback,
1131        .prepare =      snd_ca0106_pcm_prepare_playback,
1132        .trigger =      snd_ca0106_pcm_trigger_playback,
1133        .pointer =      snd_ca0106_pcm_pointer_playback,
1134};
1135
1136
1137static unsigned short snd_ca0106_ac97_read(struct snd_ac97 *ac97,
1138					     unsigned short reg)
1139{
1140	struct snd_ca0106 *emu = ac97->private_data;
1141	unsigned long flags;
1142	unsigned short val;
1143
1144	spin_lock_irqsave(&emu->emu_lock, flags);
1145	outb(reg, emu->port + CA0106_AC97ADDRESS);
1146	val = inw(emu->port + CA0106_AC97DATA);
1147	spin_unlock_irqrestore(&emu->emu_lock, flags);
1148	return val;
1149}
1150
1151static void snd_ca0106_ac97_write(struct snd_ac97 *ac97,
1152				    unsigned short reg, unsigned short val)
1153{
1154	struct snd_ca0106 *emu = ac97->private_data;
1155	unsigned long flags;
1156
1157	spin_lock_irqsave(&emu->emu_lock, flags);
1158	outb(reg, emu->port + CA0106_AC97ADDRESS);
1159	outw(val, emu->port + CA0106_AC97DATA);
1160	spin_unlock_irqrestore(&emu->emu_lock, flags);
1161}
1162
1163static int snd_ca0106_ac97(struct snd_ca0106 *chip)
1164{
1165	struct snd_ac97_bus *pbus;
1166	struct snd_ac97_template ac97;
1167	int err;
1168	static const struct snd_ac97_bus_ops ops = {
1169		.write = snd_ca0106_ac97_write,
1170		.read = snd_ca0106_ac97_read,
1171	};
1172
1173	err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus);
1174	if (err < 0)
1175		return err;
1176	pbus->no_vra = 1; /* we don't need VRA */
1177
1178	memset(&ac97, 0, sizeof(ac97));
1179	ac97.private_data = chip;
1180	ac97.scaps = AC97_SCAP_NO_SPDIF;
1181	return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1182}
1183
1184static void ca0106_stop_chip(struct snd_ca0106 *chip);
1185
1186static void snd_ca0106_free(struct snd_card *card)
1187{
1188	struct snd_ca0106 *chip = card->private_data;
1189
1190	ca0106_stop_chip(chip);
1191}
1192
1193static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id)
1194{
1195	unsigned int status;
1196
1197	struct snd_ca0106 *chip = dev_id;
1198	int i;
1199	int mask;
1200        unsigned int stat76;
1201	struct snd_ca0106_channel *pchannel;
1202
1203	status = inl(chip->port + CA0106_IPR);
1204	if (! status)
1205		return IRQ_NONE;
1206
1207        stat76 = snd_ca0106_ptr_read(chip, EXTENDED_INT, 0);
1208	/*
1209	dev_dbg(emu->card->dev, "interrupt status = 0x%08x, stat76=0x%08x\n",
1210		   status, stat76);
1211	dev_dbg(emu->card->dev, "ptr=0x%08x\n",
1212		   snd_ca0106_ptr_read(chip, PLAYBACK_POINTER, 0));
1213	*/
1214        mask = 0x11; /* 0x1 for one half, 0x10 for the other half period. */
1215	for(i = 0; i < 4; i++) {
1216		pchannel = &(chip->playback_channels[i]);
1217		if (stat76 & mask) {
1218/* FIXME: Select the correct substream for period elapsed */
1219			if(pchannel->use) {
1220				snd_pcm_period_elapsed(pchannel->epcm->substream);
1221				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1222                        }
1223		}
1224		/*
1225		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1226		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1227		*/
1228		mask <<= 1;
1229	}
1230        mask = 0x110000; /* 0x1 for one half, 0x10 for the other half period. */
1231	for(i = 0; i < 4; i++) {
1232		pchannel = &(chip->capture_channels[i]);
1233		if (stat76 & mask) {
1234/* FIXME: Select the correct substream for period elapsed */
1235			if(pchannel->use) {
1236				snd_pcm_period_elapsed(pchannel->epcm->substream);
1237				/* dev_dbg(emu->card->dev, "interrupt [%d] used\n", i); */
1238                        }
1239		}
1240		/*
1241		dev_dbg(emu->card->dev, "channel=%p\n", pchannel);
1242		dev_dbg(emu->card->dev, "interrupt stat76[%d] = %08x, use=%d, channel=%d\n", i, stat76, pchannel->use, pchannel->number);
1243		*/
1244		mask <<= 1;
1245	}
1246
1247        snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76);
1248
1249	if (chip->midi.dev_id &&
1250	    (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) {
1251		if (chip->midi.interrupt)
1252			chip->midi.interrupt(&chip->midi, status);
1253		else
1254			chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable);
1255	}
1256
1257	// acknowledge the interrupt if necessary
1258	outl(status, chip->port + CA0106_IPR);
1259
1260	return IRQ_HANDLED;
1261}
1262
1263static const struct snd_pcm_chmap_elem surround_map[] = {
1264	{ .channels = 2,
1265	  .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
1266	{ }
1267};
1268
1269static const struct snd_pcm_chmap_elem clfe_map[] = {
1270	{ .channels = 2,
1271	  .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
1272	{ }
1273};
1274
1275static const struct snd_pcm_chmap_elem side_map[] = {
1276	{ .channels = 2,
1277	  .map = { SNDRV_CHMAP_SL, SNDRV_CHMAP_SR } },
1278	{ }
1279};
1280
1281static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
1282{
1283	struct snd_pcm *pcm;
1284	struct snd_pcm_substream *substream;
1285	const struct snd_pcm_chmap_elem *map = NULL;
1286	int err;
1287
1288	err = snd_pcm_new(emu->card, "ca0106", device, 1, 1, &pcm);
1289	if (err < 0)
1290		return err;
1291
1292	pcm->private_data = emu;
1293
1294	switch (device) {
1295	case 0:
1296	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_front_ops);
1297	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_0_ops);
1298	  map = snd_pcm_std_chmaps;
1299          break;
1300	case 1:
1301	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_rear_ops);
1302	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_1_ops);
1303	  map = surround_map;
1304          break;
1305	case 2:
1306	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_center_lfe_ops);
1307	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_2_ops);
1308	  map = clfe_map;
1309          break;
1310	case 3:
1311	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ca0106_playback_unknown_ops);
1312	  snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ca0106_capture_3_ops);
1313	  map = side_map;
1314          break;
1315        }
1316
1317	pcm->info_flags = 0;
1318	strcpy(pcm->name, "CA0106");
1319
1320	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
1321	    substream;
1322	    substream = substream->next) {
1323		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1324					   &emu->pci->dev,
1325					   64*1024, 64*1024);
1326	}
1327
1328	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
1329	      substream;
1330	      substream = substream->next) {
1331		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
1332					   &emu->pci->dev,
1333					   64*1024, 64*1024);
1334	}
1335
1336	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
1337				     1 << 2, NULL);
1338	if (err < 0)
1339		return err;
1340
1341	emu->pcm[device] = pcm;
1342
1343	return 0;
1344}
1345
1346#define SPI_REG(reg, value)	(((reg) << SPI_REG_SHIFT) | (value))
1347static const unsigned int spi_dac_init[] = {
1348	SPI_REG(SPI_LDA1_REG,	SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
1349	SPI_REG(SPI_RDA1_REG,	SPI_DA_BIT_0dB),
1350	SPI_REG(SPI_PL_REG,	SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
1351	SPI_REG(SPI_FMT_REG,	SPI_FMT_BIT_I2S | SPI_IWL_BIT_24),
1352	SPI_REG(SPI_LDA2_REG,	SPI_DA_BIT_0dB),
1353	SPI_REG(SPI_RDA2_REG,	SPI_DA_BIT_0dB),
1354	SPI_REG(SPI_LDA3_REG,	SPI_DA_BIT_0dB),
1355	SPI_REG(SPI_RDA3_REG,	SPI_DA_BIT_0dB),
1356	SPI_REG(SPI_MASTDA_REG,	SPI_DA_BIT_0dB),
1357	SPI_REG(9,		0x00),
1358	SPI_REG(SPI_MS_REG,	SPI_DACD0_BIT | SPI_DACD1_BIT | SPI_DACD2_BIT),
1359	SPI_REG(12,		0x00),
1360	SPI_REG(SPI_LDA4_REG,	SPI_DA_BIT_0dB),
1361	SPI_REG(SPI_RDA4_REG,	SPI_DA_BIT_0dB | SPI_DA_BIT_UPDATE),
1362	SPI_REG(SPI_DACD4_REG,	SPI_DACD4_BIT),
1363};
1364
1365static const unsigned int i2c_adc_init[][2] = {
1366	{ 0x17, 0x00 }, /* Reset */
1367	{ 0x07, 0x00 }, /* Timeout */
1368	{ 0x0b, 0x22 },  /* Interface control */
1369	{ 0x0c, 0x22 },  /* Master mode control */
1370	{ 0x0d, 0x08 },  /* Powerdown control */
1371	{ 0x0e, 0xcf },  /* Attenuation Left  0x01 = -103dB, 0xff = 24dB */
1372	{ 0x0f, 0xcf },  /* Attenuation Right 0.5dB steps */
1373	{ 0x10, 0x7b },  /* ALC Control 1 */
1374	{ 0x11, 0x00 },  /* ALC Control 2 */
1375	{ 0x12, 0x32 },  /* ALC Control 3 */
1376	{ 0x13, 0x00 },  /* Noise gate control */
1377	{ 0x14, 0xa6 },  /* Limiter control */
1378	{ 0x15, ADC_MUX_LINEIN },  /* ADC Mixer control */
1379};
1380
1381static void ca0106_init_chip(struct snd_ca0106 *chip, int resume)
1382{
1383	int ch;
1384	unsigned int def_bits;
1385
1386	outl(0, chip->port + CA0106_INTE);
1387
1388	/*
1389	 *  Init to 0x02109204 :
1390	 *  Clock accuracy    = 0     (1000ppm)
1391	 *  Sample Rate       = 2     (48kHz)
1392	 *  Audio Channel     = 1     (Left of 2)
1393	 *  Source Number     = 0     (Unspecified)
1394	 *  Generation Status = 1     (Original for Cat Code 12)
1395	 *  Cat Code          = 12    (Digital Signal Mixer)
1396	 *  Mode              = 0     (Mode 0)
1397	 *  Emphasis          = 0     (None)
1398	 *  CP                = 1     (Copyright unasserted)
1399	 *  AN                = 0     (Audio data)
1400	 *  P                 = 0     (Consumer)
1401	 */
1402	def_bits =
1403		SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1404		SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1405		SPCS_GENERATIONSTATUS | 0x00001200 |
1406		0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
1407	if (!resume) {
1408		chip->spdif_str_bits[0] = chip->spdif_bits[0] = def_bits;
1409		chip->spdif_str_bits[1] = chip->spdif_bits[1] = def_bits;
1410		chip->spdif_str_bits[2] = chip->spdif_bits[2] = def_bits;
1411		chip->spdif_str_bits[3] = chip->spdif_bits[3] = def_bits;
1412	}
1413	/* Only SPCS1 has been tested */
1414	snd_ca0106_ptr_write(chip, SPCS1, 0, chip->spdif_str_bits[1]);
1415	snd_ca0106_ptr_write(chip, SPCS0, 0, chip->spdif_str_bits[0]);
1416	snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
1417	snd_ca0106_ptr_write(chip, SPCS3, 0, chip->spdif_str_bits[3]);
1418
1419        snd_ca0106_ptr_write(chip, PLAYBACK_MUTE, 0, 0x00fc0000);
1420        snd_ca0106_ptr_write(chip, CAPTURE_MUTE, 0, 0x00fc0000);
1421
1422        /* Write 0x8000 to AC97_REC_GAIN to mute it. */
1423        outb(AC97_REC_GAIN, chip->port + CA0106_AC97ADDRESS);
1424        outw(0x8000, chip->port + CA0106_AC97DATA);
1425#if 0 /* FIXME: what are these? */
1426	snd_ca0106_ptr_write(chip, SPCS0, 0, 0x2108006);
1427	snd_ca0106_ptr_write(chip, 0x42, 0, 0x2108006);
1428	snd_ca0106_ptr_write(chip, 0x43, 0, 0x2108006);
1429	snd_ca0106_ptr_write(chip, 0x44, 0, 0x2108006);
1430#endif
1431
1432	/* OSS drivers set this. */
1433	/* snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0xf0f003f); */
1434
1435	/* Analog or Digital output */
1436	snd_ca0106_ptr_write(chip, SPDIF_SELECT1, 0, 0xf);
1437	/* 0x0b000000 for digital, 0x000b0000 for analog, from win2000 drivers.
1438	 * Use 0x000f0000 for surround71
1439	 */
1440	snd_ca0106_ptr_write(chip, SPDIF_SELECT2, 0, 0x000f0000);
1441
1442	chip->spdif_enable = 0; /* Set digital SPDIF output off */
1443	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0);*/ /* Analogue out */
1444	/*snd_ca0106_ptr_write(chip, 0x45, 0, 0xf00);*/ /* Digital out */
1445
1446	/* goes to 0x40c80000 when doing SPDIF IN/OUT */
1447	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 0, 0x40c81000);
1448	/* (Mute) CAPTURE feedback into PLAYBACK volume.
1449	 * Only lower 16 bits matter.
1450	 */
1451	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 1, 0xffffffff);
1452	/* SPDIF IN Volume */
1453	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 2, 0x30300000);
1454	/* SPDIF IN Volume, 0x70 = (vol & 0x3f) | 0x40 */
1455	snd_ca0106_ptr_write(chip, CAPTURE_CONTROL, 3, 0x00700000);
1456
1457	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING1, 0, 0x32765410);
1458	snd_ca0106_ptr_write(chip, PLAYBACK_ROUTING2, 0, 0x76767676);
1459	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING1, 0, 0x32765410);
1460	snd_ca0106_ptr_write(chip, CAPTURE_ROUTING2, 0, 0x76767676);
1461
1462	for (ch = 0; ch < 4; ch++) {
1463		/* Only high 16 bits matter */
1464		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME1, ch, 0x30303030);
1465		snd_ca0106_ptr_write(chip, CAPTURE_VOLUME2, ch, 0x30303030);
1466#if 0 /* Mute */
1467		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0x40404040);
1468		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0x40404040);
1469		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME1, ch, 0xffffffff);
1470		snd_ca0106_ptr_write(chip, PLAYBACK_VOLUME2, ch, 0xffffffff);
1471#endif
1472	}
1473	if (chip->details->i2c_adc == 1) {
1474	        /* Select MIC, Line in, TAD in, AUX in */
1475	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1476		/* Default to CAPTURE_SOURCE to i2s in */
1477		if (!resume)
1478			chip->capture_source = 3;
1479	} else if (chip->details->ac97 == 1) {
1480	        /* Default to AC97 in */
1481	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x444400e4);
1482		/* Default to CAPTURE_SOURCE to AC97 in */
1483		if (!resume)
1484			chip->capture_source = 4;
1485	} else {
1486	        /* Select MIC, Line in, TAD in, AUX in */
1487	        snd_ca0106_ptr_write(chip, CAPTURE_SOURCE, 0x0, 0x333300e4);
1488		/* Default to Set CAPTURE_SOURCE to i2s in */
1489		if (!resume)
1490			chip->capture_source = 3;
1491	}
1492
1493	if (chip->details->gpio_type == 2) {
1494		/* The SB0438 use GPIO differently. */
1495		/* FIXME: Still need to find out what the other GPIO bits do.
1496		 * E.g. For digital spdif out.
1497		 */
1498		outl(0x0, chip->port + CA0106_GPIO);
1499		/* outl(0x00f0e000, chip->port + CA0106_GPIO); */ /* Analog */
1500		outl(0x005f5301, chip->port + CA0106_GPIO); /* Analog */
1501	} else if (chip->details->gpio_type == 1) {
1502		/* The SB0410 and SB0413 use GPIO differently. */
1503		/* FIXME: Still need to find out what the other GPIO bits do.
1504		 * E.g. For digital spdif out.
1505		 */
1506		outl(0x0, chip->port + CA0106_GPIO);
1507		/* outl(0x00f0e000, chip->port + CA0106_GPIO); */ /* Analog */
1508		outl(0x005f5301, chip->port + CA0106_GPIO); /* Analog */
1509	} else {
1510		outl(0x0, chip->port + CA0106_GPIO);
1511		outl(0x005f03a3, chip->port + CA0106_GPIO); /* Analog */
1512		/* outl(0x005f02a2, chip->port + CA0106_GPIO); */ /* SPDIF */
1513	}
1514	snd_ca0106_intr_enable(chip, 0x105); /* Win2000 uses 0x1e0 */
1515
1516	/* outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); */
1517	/* 0x1000 causes AC3 to fails. Maybe it effects 24 bit output. */
1518	/* outl(0x00001409, chip->port + CA0106_HCFG); */
1519	/* outl(0x00000009, chip->port + CA0106_HCFG); */
1520	/* AC97 2.0, Enable outputs. */
1521	outl(HCFG_AC97 | HCFG_AUDIOENABLE, chip->port + CA0106_HCFG);
1522
1523	if (chip->details->i2c_adc == 1) {
1524		/* The SB0410 and SB0413 use I2C to control ADC. */
1525		int size, n;
1526
1527		size = ARRAY_SIZE(i2c_adc_init);
1528		/* dev_dbg(emu->card->dev, "I2C:array size=0x%x\n", size); */
1529		for (n = 0; n < size; n++)
1530			snd_ca0106_i2c_write(chip, i2c_adc_init[n][0],
1531					     i2c_adc_init[n][1]);
1532		for (n = 0; n < 4; n++) {
1533			chip->i2c_capture_volume[n][0] = 0xcf;
1534			chip->i2c_capture_volume[n][1] = 0xcf;
1535		}
1536		chip->i2c_capture_source = 2; /* Line in */
1537		/* Enable Line-in capture. MIC in currently untested. */
1538		/* snd_ca0106_i2c_write(chip, ADC_MUX, ADC_MUX_LINEIN); */
1539	}
1540
1541	if (chip->details->spi_dac) {
1542		/* The SB0570 use SPI to control DAC. */
1543		int size, n;
1544
1545		size = ARRAY_SIZE(spi_dac_init);
1546		for (n = 0; n < size; n++) {
1547			int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
1548
1549			snd_ca0106_spi_write(chip, spi_dac_init[n]);
1550			if (reg < ARRAY_SIZE(chip->spi_dac_reg))
1551				chip->spi_dac_reg[reg] = spi_dac_init[n];
1552		}
1553
1554		/* Enable front dac only */
1555		snd_ca0106_pcm_power_dac(chip, PCM_FRONT_CHANNEL, 1);
1556	}
1557}
1558
1559static void ca0106_stop_chip(struct snd_ca0106 *chip)
1560{
1561	/* disable interrupts */
1562	snd_ca0106_ptr_write(chip, BASIC_INTERRUPT, 0, 0);
1563	outl(0, chip->port + CA0106_INTE);
1564	snd_ca0106_ptr_write(chip, EXTENDED_INT_MASK, 0, 0);
1565	udelay(1000);
1566	/* disable audio */
1567	/* outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); */
1568	outl(0, chip->port + CA0106_HCFG);
1569	/* FIXME: We need to stop and DMA transfers here.
1570	 *        But as I am not sure how yet, we cannot from the dma pages.
1571	 * So we can fix: snd-malloc: Memory leak?  pages not freed = 8
1572	 */
1573}
1574
1575static int snd_ca0106_create(int dev, struct snd_card *card,
1576			     struct pci_dev *pci)
1577{
1578	struct snd_ca0106 *chip = card->private_data;
1579	const struct snd_ca0106_details *c;
1580	int err;
1581
1582	err = pcim_enable_device(pci);
1583	if (err < 0)
1584		return err;
1585	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
1586		dev_err(card->dev, "error to set 32bit mask DMA\n");
1587		return -ENXIO;
1588	}
1589
1590	chip->card = card;
1591	chip->pci = pci;
1592	chip->irq = -1;
1593
1594	spin_lock_init(&chip->emu_lock);
1595
1596	err = pci_request_regions(pci, "snd_ca0106");
1597	if (err < 0)
1598		return err;
1599	chip->port = pci_resource_start(pci, 0);
1600
1601	if (devm_request_irq(&pci->dev, pci->irq, snd_ca0106_interrupt,
1602			     IRQF_SHARED, KBUILD_MODNAME, chip)) {
1603		dev_err(card->dev, "cannot grab irq\n");
1604		return -EBUSY;
1605	}
1606	chip->irq = pci->irq;
1607	card->sync_irq = chip->irq;
1608
1609	/* This stores the periods table. */
1610	chip->buffer = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV, 1024);
1611	if (!chip->buffer)
1612		return -ENOMEM;
1613
1614	pci_set_master(pci);
1615	/* read serial */
1616	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
1617	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
1618	dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n",
1619	       chip->model, pci->revision, chip->serial);
1620	strcpy(card->driver, "CA0106");
1621	strcpy(card->shortname, "CA0106");
1622
1623	for (c = ca0106_chip_details; c->serial; c++) {
1624		if (subsystem[dev]) {
1625			if (c->serial == subsystem[dev])
1626				break;
1627		} else if (c->serial == chip->serial)
1628			break;
1629	}
1630	chip->details = c;
1631	if (subsystem[dev]) {
1632		dev_info(card->dev, "Sound card name=%s, "
1633		       "subsystem=0x%x. Forced to subsystem=0x%x\n",
1634		       c->name, chip->serial, subsystem[dev]);
1635	}
1636
1637	sprintf(card->longname, "%s at 0x%lx irq %i",
1638		c->name, chip->port, chip->irq);
1639
1640	ca0106_init_chip(chip, 0);
1641	return 0;
1642}
1643
1644
1645static void ca0106_midi_interrupt_enable(struct snd_ca_midi *midi, int intr)
1646{
1647	snd_ca0106_intr_enable((struct snd_ca0106 *)(midi->dev_id), intr);
1648}
1649
1650static void ca0106_midi_interrupt_disable(struct snd_ca_midi *midi, int intr)
1651{
1652	snd_ca0106_intr_disable((struct snd_ca0106 *)(midi->dev_id), intr);
1653}
1654
1655static unsigned char ca0106_midi_read(struct snd_ca_midi *midi, int idx)
1656{
1657	return (unsigned char)snd_ca0106_ptr_read((struct snd_ca0106 *)(midi->dev_id),
1658						  midi->port + idx, 0);
1659}
1660
1661static void ca0106_midi_write(struct snd_ca_midi *midi, int data, int idx)
1662{
1663	snd_ca0106_ptr_write((struct snd_ca0106 *)(midi->dev_id), midi->port + idx, 0, data);
1664}
1665
1666static struct snd_card *ca0106_dev_id_card(void *dev_id)
1667{
1668	return ((struct snd_ca0106 *)dev_id)->card;
1669}
1670
1671static int ca0106_dev_id_port(void *dev_id)
1672{
1673	return ((struct snd_ca0106 *)dev_id)->port;
1674}
1675
1676static int snd_ca0106_midi(struct snd_ca0106 *chip, unsigned int channel)
1677{
1678	struct snd_ca_midi *midi;
1679	char *name;
1680	int err;
1681
1682	if (channel == CA0106_MIDI_CHAN_B) {
1683		name = "CA0106 MPU-401 (UART) B";
1684		midi =  &chip->midi2;
1685		midi->tx_enable = INTE_MIDI_TX_B;
1686		midi->rx_enable = INTE_MIDI_RX_B;
1687		midi->ipr_tx = IPR_MIDI_TX_B;
1688		midi->ipr_rx = IPR_MIDI_RX_B;
1689		midi->port = MIDI_UART_B_DATA;
1690	} else {
1691		name = "CA0106 MPU-401 (UART)";
1692		midi =  &chip->midi;
1693		midi->tx_enable = INTE_MIDI_TX_A;
1694		midi->rx_enable = INTE_MIDI_TX_B;
1695		midi->ipr_tx = IPR_MIDI_TX_A;
1696		midi->ipr_rx = IPR_MIDI_RX_A;
1697		midi->port = MIDI_UART_A_DATA;
1698	}
1699
1700	midi->reset = CA0106_MPU401_RESET;
1701	midi->enter_uart = CA0106_MPU401_ENTER_UART;
1702	midi->ack = CA0106_MPU401_ACK;
1703
1704	midi->input_avail = CA0106_MIDI_INPUT_AVAIL;
1705	midi->output_ready = CA0106_MIDI_OUTPUT_READY;
1706
1707	midi->channel = channel;
1708
1709	midi->interrupt_enable = ca0106_midi_interrupt_enable;
1710	midi->interrupt_disable = ca0106_midi_interrupt_disable;
1711
1712	midi->read = ca0106_midi_read;
1713	midi->write = ca0106_midi_write;
1714
1715	midi->get_dev_id_card = ca0106_dev_id_card;
1716	midi->get_dev_id_port = ca0106_dev_id_port;
1717
1718	midi->dev_id = chip;
1719
1720	err = ca_midi_init(chip, midi, 0, name);
1721	if (err < 0)
1722		return err;
1723
1724	return 0;
1725}
1726
1727
1728static int __snd_ca0106_probe(struct pci_dev *pci,
1729			      const struct pci_device_id *pci_id)
1730{
1731	static int dev;
1732	struct snd_card *card;
1733	struct snd_ca0106 *chip;
1734	int i, err;
1735
1736	if (dev >= SNDRV_CARDS)
1737		return -ENODEV;
1738	if (!enable[dev]) {
1739		dev++;
1740		return -ENOENT;
1741	}
1742
1743	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1744				sizeof(*chip), &card);
1745	if (err < 0)
1746		return err;
1747	chip = card->private_data;
1748
1749	err = snd_ca0106_create(dev, card, pci);
1750	if (err < 0)
1751		return err;
1752	card->private_free = snd_ca0106_free;
1753
1754	for (i = 0; i < 4; i++) {
1755		err = snd_ca0106_pcm(chip, i);
1756		if (err < 0)
1757			return err;
1758	}
1759
1760	if (chip->details->ac97 == 1) {
1761		/* The SB0410 and SB0413 do not have an AC97 chip. */
1762		err = snd_ca0106_ac97(chip);
1763		if (err < 0)
1764			return err;
1765	}
1766	err = snd_ca0106_mixer(chip);
1767	if (err < 0)
1768		return err;
1769
1770	dev_dbg(card->dev, "probe for MIDI channel A ...");
1771	err = snd_ca0106_midi(chip, CA0106_MIDI_CHAN_A);
1772	if (err < 0)
1773		return err;
1774	dev_dbg(card->dev, " done.\n");
1775
1776#ifdef CONFIG_SND_PROC_FS
1777	snd_ca0106_proc_init(chip);
1778#endif
1779
1780	err = snd_card_register(card);
1781	if (err < 0)
1782		return err;
1783
1784	pci_set_drvdata(pci, card);
1785	dev++;
1786	return 0;
1787}
1788
1789static int snd_ca0106_probe(struct pci_dev *pci,
1790			    const struct pci_device_id *pci_id)
1791{
1792	return snd_card_free_on_error(&pci->dev, __snd_ca0106_probe(pci, pci_id));
1793}
1794
1795#ifdef CONFIG_PM_SLEEP
1796static int snd_ca0106_suspend(struct device *dev)
1797{
1798	struct snd_card *card = dev_get_drvdata(dev);
1799	struct snd_ca0106 *chip = card->private_data;
1800
1801	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1802	if (chip->details->ac97)
1803		snd_ac97_suspend(chip->ac97);
1804	snd_ca0106_mixer_suspend(chip);
1805
1806	ca0106_stop_chip(chip);
1807	return 0;
1808}
1809
1810static int snd_ca0106_resume(struct device *dev)
1811{
1812	struct snd_card *card = dev_get_drvdata(dev);
1813	struct snd_ca0106 *chip = card->private_data;
1814	int i;
1815
1816	ca0106_init_chip(chip, 1);
1817
1818	if (chip->details->ac97)
1819		snd_ac97_resume(chip->ac97);
1820	snd_ca0106_mixer_resume(chip);
1821	if (chip->details->spi_dac) {
1822		for (i = 0; i < ARRAY_SIZE(chip->spi_dac_reg); i++)
1823			snd_ca0106_spi_write(chip, chip->spi_dac_reg[i]);
1824	}
1825
1826	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1827	return 0;
1828}
1829
1830static SIMPLE_DEV_PM_OPS(snd_ca0106_pm, snd_ca0106_suspend, snd_ca0106_resume);
1831#define SND_CA0106_PM_OPS	&snd_ca0106_pm
1832#else
1833#define SND_CA0106_PM_OPS	NULL
1834#endif
1835
1836// PCI IDs
1837static const struct pci_device_id snd_ca0106_ids[] = {
1838	{ PCI_VDEVICE(CREATIVE, 0x0007), 0 },	/* Audigy LS or Live 24bit */
1839	{ 0, }
1840};
1841MODULE_DEVICE_TABLE(pci, snd_ca0106_ids);
1842
1843// pci_driver definition
1844static struct pci_driver ca0106_driver = {
1845	.name = KBUILD_MODNAME,
1846	.id_table = snd_ca0106_ids,
1847	.probe = snd_ca0106_probe,
1848	.driver = {
1849		.pm = SND_CA0106_PM_OPS,
1850	},
1851};
1852
1853module_pci_driver(ca0106_driver);
1854