1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 *  Routines for control of CS4231(A)/CS4232/InterWave & compatible chips
5 *
6 *  Bugs:
7 *     - sometimes record brokes playback with WSS portion of
8 *       Yamaha OPL3-SA3 chip
9 *     - CS4231 (GUS MAX) - still trouble with occasional noises
10 *			  - broken initialization?
11 */
12
13#include <linux/delay.h>
14#include <linux/pm.h>
15#include <linux/init.h>
16#include <linux/interrupt.h>
17#include <linux/slab.h>
18#include <linux/ioport.h>
19#include <linux/module.h>
20#include <linux/io.h>
21#include <sound/core.h>
22#include <sound/wss.h>
23#include <sound/pcm_params.h>
24#include <sound/tlv.h>
25
26#include <asm/dma.h>
27#include <asm/irq.h>
28
29MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
30MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips");
31MODULE_LICENSE("GPL");
32
33#if 0
34#define SNDRV_DEBUG_MCE
35#endif
36
37/*
38 *  Some variables
39 */
40
41static const unsigned char freq_bits[14] = {
42	/* 5510 */	0x00 | CS4231_XTAL2,
43	/* 6620 */	0x0E | CS4231_XTAL2,
44	/* 8000 */	0x00 | CS4231_XTAL1,
45	/* 9600 */	0x0E | CS4231_XTAL1,
46	/* 11025 */	0x02 | CS4231_XTAL2,
47	/* 16000 */	0x02 | CS4231_XTAL1,
48	/* 18900 */	0x04 | CS4231_XTAL2,
49	/* 22050 */	0x06 | CS4231_XTAL2,
50	/* 27042 */	0x04 | CS4231_XTAL1,
51	/* 32000 */	0x06 | CS4231_XTAL1,
52	/* 33075 */	0x0C | CS4231_XTAL2,
53	/* 37800 */	0x08 | CS4231_XTAL2,
54	/* 44100 */	0x0A | CS4231_XTAL2,
55	/* 48000 */	0x0C | CS4231_XTAL1
56};
57
58static const unsigned int rates[14] = {
59	5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
60	27042, 32000, 33075, 37800, 44100, 48000
61};
62
63static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
64	.count = ARRAY_SIZE(rates),
65	.list = rates,
66	.mask = 0,
67};
68
69static int snd_wss_xrate(struct snd_pcm_runtime *runtime)
70{
71	return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
72					  &hw_constraints_rates);
73}
74
75static const unsigned char snd_wss_original_image[32] =
76{
77	0x00,			/* 00/00 - lic */
78	0x00,			/* 01/01 - ric */
79	0x9f,			/* 02/02 - la1ic */
80	0x9f,			/* 03/03 - ra1ic */
81	0x9f,			/* 04/04 - la2ic */
82	0x9f,			/* 05/05 - ra2ic */
83	0xbf,			/* 06/06 - loc */
84	0xbf,			/* 07/07 - roc */
85	0x20,			/* 08/08 - pdfr */
86	CS4231_AUTOCALIB,	/* 09/09 - ic */
87	0x00,			/* 0a/10 - pc */
88	0x00,			/* 0b/11 - ti */
89	CS4231_MODE2,		/* 0c/12 - mi */
90	0xfc,			/* 0d/13 - lbc */
91	0x00,			/* 0e/14 - pbru */
92	0x00,			/* 0f/15 - pbrl */
93	0x80,			/* 10/16 - afei */
94	0x01,			/* 11/17 - afeii */
95	0x9f,			/* 12/18 - llic */
96	0x9f,			/* 13/19 - rlic */
97	0x00,			/* 14/20 - tlb */
98	0x00,			/* 15/21 - thb */
99	0x00,			/* 16/22 - la3mic/reserved */
100	0x00,			/* 17/23 - ra3mic/reserved */
101	0x00,			/* 18/24 - afs */
102	0x00,			/* 19/25 - lamoc/version */
103	0xcf,			/* 1a/26 - mioc */
104	0x00,			/* 1b/27 - ramoc/reserved */
105	0x20,			/* 1c/28 - cdfr */
106	0x00,			/* 1d/29 - res4 */
107	0x00,			/* 1e/30 - cbru */
108	0x00,			/* 1f/31 - cbrl */
109};
110
111static const unsigned char snd_opti93x_original_image[32] =
112{
113	0x00,		/* 00/00 - l_mixout_outctrl */
114	0x00,		/* 01/01 - r_mixout_outctrl */
115	0x88,		/* 02/02 - l_cd_inctrl */
116	0x88,		/* 03/03 - r_cd_inctrl */
117	0x88,		/* 04/04 - l_a1/fm_inctrl */
118	0x88,		/* 05/05 - r_a1/fm_inctrl */
119	0x80,		/* 06/06 - l_dac_inctrl */
120	0x80,		/* 07/07 - r_dac_inctrl */
121	0x00,		/* 08/08 - ply_dataform_reg */
122	0x00,		/* 09/09 - if_conf */
123	0x00,		/* 0a/10 - pin_ctrl */
124	0x00,		/* 0b/11 - err_init_reg */
125	0x0a,		/* 0c/12 - id_reg */
126	0x00,		/* 0d/13 - reserved */
127	0x00,		/* 0e/14 - ply_upcount_reg */
128	0x00,		/* 0f/15 - ply_lowcount_reg */
129	0x88,		/* 10/16 - reserved/l_a1_inctrl */
130	0x88,		/* 11/17 - reserved/r_a1_inctrl */
131	0x88,		/* 12/18 - l_line_inctrl */
132	0x88,		/* 13/19 - r_line_inctrl */
133	0x88,		/* 14/20 - l_mic_inctrl */
134	0x88,		/* 15/21 - r_mic_inctrl */
135	0x80,		/* 16/22 - l_out_outctrl */
136	0x80,		/* 17/23 - r_out_outctrl */
137	0x00,		/* 18/24 - reserved */
138	0x00,		/* 19/25 - reserved */
139	0x00,		/* 1a/26 - reserved */
140	0x00,		/* 1b/27 - reserved */
141	0x00,		/* 1c/28 - cap_dataform_reg */
142	0x00,		/* 1d/29 - reserved */
143	0x00,		/* 1e/30 - cap_upcount_reg */
144	0x00		/* 1f/31 - cap_lowcount_reg */
145};
146
147/*
148 *  Basic I/O functions
149 */
150
151static inline void wss_outb(struct snd_wss *chip, u8 offset, u8 val)
152{
153	outb(val, chip->port + offset);
154}
155
156static inline u8 wss_inb(struct snd_wss *chip, u8 offset)
157{
158	return inb(chip->port + offset);
159}
160
161static void snd_wss_wait(struct snd_wss *chip)
162{
163	int timeout;
164
165	for (timeout = 250;
166	     timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
167	     timeout--)
168		udelay(100);
169}
170
171static void snd_wss_dout(struct snd_wss *chip, unsigned char reg,
172			 unsigned char value)
173{
174	int timeout;
175
176	for (timeout = 250;
177	     timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
178	     timeout--)
179		udelay(10);
180	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
181	wss_outb(chip, CS4231P(REG), value);
182	mb();
183}
184
185void snd_wss_out(struct snd_wss *chip, unsigned char reg, unsigned char value)
186{
187	snd_wss_wait(chip);
188#ifdef CONFIG_SND_DEBUG
189	if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
190		snd_printk(KERN_DEBUG "out: auto calibration time out "
191			   "- reg = 0x%x, value = 0x%x\n", reg, value);
192#endif
193	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
194	wss_outb(chip, CS4231P(REG), value);
195	chip->image[reg] = value;
196	mb();
197	snd_printdd("codec out - reg 0x%x = 0x%x\n",
198			chip->mce_bit | reg, value);
199}
200EXPORT_SYMBOL(snd_wss_out);
201
202unsigned char snd_wss_in(struct snd_wss *chip, unsigned char reg)
203{
204	snd_wss_wait(chip);
205#ifdef CONFIG_SND_DEBUG
206	if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
207		snd_printk(KERN_DEBUG "in: auto calibration time out "
208			   "- reg = 0x%x\n", reg);
209#endif
210	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
211	mb();
212	return wss_inb(chip, CS4231P(REG));
213}
214EXPORT_SYMBOL(snd_wss_in);
215
216void snd_cs4236_ext_out(struct snd_wss *chip, unsigned char reg,
217			unsigned char val)
218{
219	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
220	wss_outb(chip, CS4231P(REG),
221		 reg | (chip->image[CS4236_EXT_REG] & 0x01));
222	wss_outb(chip, CS4231P(REG), val);
223	chip->eimage[CS4236_REG(reg)] = val;
224#if 0
225	printk(KERN_DEBUG "ext out : reg = 0x%x, val = 0x%x\n", reg, val);
226#endif
227}
228EXPORT_SYMBOL(snd_cs4236_ext_out);
229
230unsigned char snd_cs4236_ext_in(struct snd_wss *chip, unsigned char reg)
231{
232	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
233	wss_outb(chip, CS4231P(REG),
234		 reg | (chip->image[CS4236_EXT_REG] & 0x01));
235#if 1
236	return wss_inb(chip, CS4231P(REG));
237#else
238	{
239		unsigned char res;
240		res = wss_inb(chip, CS4231P(REG));
241		printk(KERN_DEBUG "ext in : reg = 0x%x, val = 0x%x\n",
242		       reg, res);
243		return res;
244	}
245#endif
246}
247EXPORT_SYMBOL(snd_cs4236_ext_in);
248
249#if 0
250
251static void snd_wss_debug(struct snd_wss *chip)
252{
253	printk(KERN_DEBUG
254		"CS4231 REGS:      INDEX = 0x%02x  "
255		"                 STATUS = 0x%02x\n",
256					wss_inb(chip, CS4231P(REGSEL)),
257					wss_inb(chip, CS4231P(STATUS)));
258	printk(KERN_DEBUG
259		"  0x00: left input      = 0x%02x  "
260		"  0x10: alt 1 (CFIG 2)  = 0x%02x\n",
261					snd_wss_in(chip, 0x00),
262					snd_wss_in(chip, 0x10));
263	printk(KERN_DEBUG
264		"  0x01: right input     = 0x%02x  "
265		"  0x11: alt 2 (CFIG 3)  = 0x%02x\n",
266					snd_wss_in(chip, 0x01),
267					snd_wss_in(chip, 0x11));
268	printk(KERN_DEBUG
269		"  0x02: GF1 left input  = 0x%02x  "
270		"  0x12: left line in    = 0x%02x\n",
271					snd_wss_in(chip, 0x02),
272					snd_wss_in(chip, 0x12));
273	printk(KERN_DEBUG
274		"  0x03: GF1 right input = 0x%02x  "
275		"  0x13: right line in   = 0x%02x\n",
276					snd_wss_in(chip, 0x03),
277					snd_wss_in(chip, 0x13));
278	printk(KERN_DEBUG
279		"  0x04: CD left input   = 0x%02x  "
280		"  0x14: timer low       = 0x%02x\n",
281					snd_wss_in(chip, 0x04),
282					snd_wss_in(chip, 0x14));
283	printk(KERN_DEBUG
284		"  0x05: CD right input  = 0x%02x  "
285		"  0x15: timer high      = 0x%02x\n",
286					snd_wss_in(chip, 0x05),
287					snd_wss_in(chip, 0x15));
288	printk(KERN_DEBUG
289		"  0x06: left output     = 0x%02x  "
290		"  0x16: left MIC (PnP)  = 0x%02x\n",
291					snd_wss_in(chip, 0x06),
292					snd_wss_in(chip, 0x16));
293	printk(KERN_DEBUG
294		"  0x07: right output    = 0x%02x  "
295		"  0x17: right MIC (PnP) = 0x%02x\n",
296					snd_wss_in(chip, 0x07),
297					snd_wss_in(chip, 0x17));
298	printk(KERN_DEBUG
299		"  0x08: playback format = 0x%02x  "
300		"  0x18: IRQ status      = 0x%02x\n",
301					snd_wss_in(chip, 0x08),
302					snd_wss_in(chip, 0x18));
303	printk(KERN_DEBUG
304		"  0x09: iface (CFIG 1)  = 0x%02x  "
305		"  0x19: left line out   = 0x%02x\n",
306					snd_wss_in(chip, 0x09),
307					snd_wss_in(chip, 0x19));
308	printk(KERN_DEBUG
309		"  0x0a: pin control     = 0x%02x  "
310		"  0x1a: mono control    = 0x%02x\n",
311					snd_wss_in(chip, 0x0a),
312					snd_wss_in(chip, 0x1a));
313	printk(KERN_DEBUG
314		"  0x0b: init & status   = 0x%02x  "
315		"  0x1b: right line out  = 0x%02x\n",
316					snd_wss_in(chip, 0x0b),
317					snd_wss_in(chip, 0x1b));
318	printk(KERN_DEBUG
319		"  0x0c: revision & mode = 0x%02x  "
320		"  0x1c: record format   = 0x%02x\n",
321					snd_wss_in(chip, 0x0c),
322					snd_wss_in(chip, 0x1c));
323	printk(KERN_DEBUG
324		"  0x0d: loopback        = 0x%02x  "
325		"  0x1d: var freq (PnP)  = 0x%02x\n",
326					snd_wss_in(chip, 0x0d),
327					snd_wss_in(chip, 0x1d));
328	printk(KERN_DEBUG
329		"  0x0e: ply upr count   = 0x%02x  "
330		"  0x1e: ply lwr count   = 0x%02x\n",
331					snd_wss_in(chip, 0x0e),
332					snd_wss_in(chip, 0x1e));
333	printk(KERN_DEBUG
334		"  0x0f: rec upr count   = 0x%02x  "
335		"  0x1f: rec lwr count   = 0x%02x\n",
336					snd_wss_in(chip, 0x0f),
337					snd_wss_in(chip, 0x1f));
338}
339
340#endif
341
342/*
343 *  CS4231 detection / MCE routines
344 */
345
346static void snd_wss_busy_wait(struct snd_wss *chip)
347{
348	int timeout;
349
350	/* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
351	for (timeout = 5; timeout > 0; timeout--)
352		wss_inb(chip, CS4231P(REGSEL));
353	/* end of cleanup sequence */
354	for (timeout = 25000;
355	     timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
356	     timeout--)
357		udelay(10);
358}
359
360void snd_wss_mce_up(struct snd_wss *chip)
361{
362	unsigned long flags;
363	int timeout;
364
365	snd_wss_wait(chip);
366#ifdef CONFIG_SND_DEBUG
367	if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
368		snd_printk(KERN_DEBUG
369			   "mce_up - auto calibration time out (0)\n");
370#endif
371	spin_lock_irqsave(&chip->reg_lock, flags);
372	chip->mce_bit |= CS4231_MCE;
373	timeout = wss_inb(chip, CS4231P(REGSEL));
374	if (timeout == 0x80)
375		snd_printk(KERN_DEBUG "mce_up [0x%lx]: "
376			   "serious init problem - codec still busy\n",
377			   chip->port);
378	if (!(timeout & CS4231_MCE))
379		wss_outb(chip, CS4231P(REGSEL),
380			 chip->mce_bit | (timeout & 0x1f));
381	spin_unlock_irqrestore(&chip->reg_lock, flags);
382}
383EXPORT_SYMBOL(snd_wss_mce_up);
384
385void snd_wss_mce_down(struct snd_wss *chip)
386{
387	unsigned long flags;
388	unsigned long end_time;
389	int timeout;
390	int hw_mask = WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK | WSS_HW_AD1848;
391
392	snd_wss_busy_wait(chip);
393
394#ifdef CONFIG_SND_DEBUG
395	if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
396		snd_printk(KERN_DEBUG "mce_down [0x%lx] - "
397			   "auto calibration time out (0)\n",
398			   (long)CS4231P(REGSEL));
399#endif
400	spin_lock_irqsave(&chip->reg_lock, flags);
401	chip->mce_bit &= ~CS4231_MCE;
402	timeout = wss_inb(chip, CS4231P(REGSEL));
403	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
404	spin_unlock_irqrestore(&chip->reg_lock, flags);
405	if (timeout == 0x80)
406		snd_printk(KERN_DEBUG "mce_down [0x%lx]: "
407			   "serious init problem - codec still busy\n",
408			   chip->port);
409	if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & hw_mask))
410		return;
411
412	/*
413	 * Wait for (possible -- during init auto-calibration may not be set)
414	 * calibration process to start. Needs up to 5 sample periods on AD1848
415	 * which at the slowest possible rate of 5.5125 kHz means 907 us.
416	 */
417	msleep(1);
418
419	snd_printdd("(1) jiffies = %lu\n", jiffies);
420
421	/* check condition up to 250 ms */
422	end_time = jiffies + msecs_to_jiffies(250);
423	while (snd_wss_in(chip, CS4231_TEST_INIT) &
424		CS4231_CALIB_IN_PROGRESS) {
425
426		if (time_after(jiffies, end_time)) {
427			snd_printk(KERN_ERR "mce_down - "
428					"auto calibration time out (2)\n");
429			return;
430		}
431		msleep(1);
432	}
433
434	snd_printdd("(2) jiffies = %lu\n", jiffies);
435
436	/* check condition up to 100 ms */
437	end_time = jiffies + msecs_to_jiffies(100);
438	while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
439		if (time_after(jiffies, end_time)) {
440			snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
441			return;
442		}
443		msleep(1);
444	}
445
446	snd_printdd("(3) jiffies = %lu\n", jiffies);
447	snd_printd("mce_down - exit = 0x%x\n", wss_inb(chip, CS4231P(REGSEL)));
448}
449EXPORT_SYMBOL(snd_wss_mce_down);
450
451static unsigned int snd_wss_get_count(unsigned char format, unsigned int size)
452{
453	switch (format & 0xe0) {
454	case CS4231_LINEAR_16:
455	case CS4231_LINEAR_16_BIG:
456		size >>= 1;
457		break;
458	case CS4231_ADPCM_16:
459		return size >> 2;
460	}
461	if (format & CS4231_STEREO)
462		size >>= 1;
463	return size;
464}
465
466static int snd_wss_trigger(struct snd_pcm_substream *substream,
467			   int cmd)
468{
469	struct snd_wss *chip = snd_pcm_substream_chip(substream);
470	int result = 0;
471	unsigned int what;
472	struct snd_pcm_substream *s;
473	int do_start;
474
475	switch (cmd) {
476	case SNDRV_PCM_TRIGGER_START:
477	case SNDRV_PCM_TRIGGER_RESUME:
478		do_start = 1; break;
479	case SNDRV_PCM_TRIGGER_STOP:
480	case SNDRV_PCM_TRIGGER_SUSPEND:
481		do_start = 0; break;
482	default:
483		return -EINVAL;
484	}
485
486	what = 0;
487	snd_pcm_group_for_each_entry(s, substream) {
488		if (s == chip->playback_substream) {
489			what |= CS4231_PLAYBACK_ENABLE;
490			snd_pcm_trigger_done(s, substream);
491		} else if (s == chip->capture_substream) {
492			what |= CS4231_RECORD_ENABLE;
493			snd_pcm_trigger_done(s, substream);
494		}
495	}
496	spin_lock(&chip->reg_lock);
497	if (do_start) {
498		chip->image[CS4231_IFACE_CTRL] |= what;
499		if (chip->trigger)
500			chip->trigger(chip, what, 1);
501	} else {
502		chip->image[CS4231_IFACE_CTRL] &= ~what;
503		if (chip->trigger)
504			chip->trigger(chip, what, 0);
505	}
506	snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
507	spin_unlock(&chip->reg_lock);
508#if 0
509	snd_wss_debug(chip);
510#endif
511	return result;
512}
513
514/*
515 *  CODEC I/O
516 */
517
518static unsigned char snd_wss_get_rate(unsigned int rate)
519{
520	int i;
521
522	for (i = 0; i < ARRAY_SIZE(rates); i++)
523		if (rate == rates[i])
524			return freq_bits[i];
525	// snd_BUG();
526	return freq_bits[ARRAY_SIZE(rates) - 1];
527}
528
529static unsigned char snd_wss_get_format(struct snd_wss *chip,
530					snd_pcm_format_t format,
531					int channels)
532{
533	unsigned char rformat;
534
535	rformat = CS4231_LINEAR_8;
536	switch (format) {
537	case SNDRV_PCM_FORMAT_MU_LAW:	rformat = CS4231_ULAW_8; break;
538	case SNDRV_PCM_FORMAT_A_LAW:	rformat = CS4231_ALAW_8; break;
539	case SNDRV_PCM_FORMAT_S16_LE:	rformat = CS4231_LINEAR_16; break;
540	case SNDRV_PCM_FORMAT_S16_BE:	rformat = CS4231_LINEAR_16_BIG; break;
541	case SNDRV_PCM_FORMAT_IMA_ADPCM:	rformat = CS4231_ADPCM_16; break;
542	}
543	if (channels > 1)
544		rformat |= CS4231_STEREO;
545#if 0
546	snd_printk(KERN_DEBUG "get_format: 0x%x (mode=0x%x)\n", format, mode);
547#endif
548	return rformat;
549}
550
551static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute)
552{
553	unsigned long flags;
554
555	mute = mute ? 0x80 : 0;
556	spin_lock_irqsave(&chip->reg_lock, flags);
557	if (chip->calibrate_mute == mute) {
558		spin_unlock_irqrestore(&chip->reg_lock, flags);
559		return;
560	}
561	if (!mute) {
562		snd_wss_dout(chip, CS4231_LEFT_INPUT,
563			     chip->image[CS4231_LEFT_INPUT]);
564		snd_wss_dout(chip, CS4231_RIGHT_INPUT,
565			     chip->image[CS4231_RIGHT_INPUT]);
566		snd_wss_dout(chip, CS4231_LOOPBACK,
567			     chip->image[CS4231_LOOPBACK]);
568	} else {
569		snd_wss_dout(chip, CS4231_LEFT_INPUT,
570			     0);
571		snd_wss_dout(chip, CS4231_RIGHT_INPUT,
572			     0);
573		snd_wss_dout(chip, CS4231_LOOPBACK,
574			     0xfd);
575	}
576
577	snd_wss_dout(chip, CS4231_AUX1_LEFT_INPUT,
578		     mute | chip->image[CS4231_AUX1_LEFT_INPUT]);
579	snd_wss_dout(chip, CS4231_AUX1_RIGHT_INPUT,
580		     mute | chip->image[CS4231_AUX1_RIGHT_INPUT]);
581	snd_wss_dout(chip, CS4231_AUX2_LEFT_INPUT,
582		     mute | chip->image[CS4231_AUX2_LEFT_INPUT]);
583	snd_wss_dout(chip, CS4231_AUX2_RIGHT_INPUT,
584		     mute | chip->image[CS4231_AUX2_RIGHT_INPUT]);
585	snd_wss_dout(chip, CS4231_LEFT_OUTPUT,
586		     mute | chip->image[CS4231_LEFT_OUTPUT]);
587	snd_wss_dout(chip, CS4231_RIGHT_OUTPUT,
588		     mute | chip->image[CS4231_RIGHT_OUTPUT]);
589	if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
590		snd_wss_dout(chip, CS4231_LEFT_LINE_IN,
591			     mute | chip->image[CS4231_LEFT_LINE_IN]);
592		snd_wss_dout(chip, CS4231_RIGHT_LINE_IN,
593			     mute | chip->image[CS4231_RIGHT_LINE_IN]);
594		snd_wss_dout(chip, CS4231_MONO_CTRL,
595			     mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
596	}
597	if (chip->hardware == WSS_HW_INTERWAVE) {
598		snd_wss_dout(chip, CS4231_LEFT_MIC_INPUT,
599			     mute | chip->image[CS4231_LEFT_MIC_INPUT]);
600		snd_wss_dout(chip, CS4231_RIGHT_MIC_INPUT,
601			     mute | chip->image[CS4231_RIGHT_MIC_INPUT]);
602		snd_wss_dout(chip, CS4231_LINE_LEFT_OUTPUT,
603			     mute | chip->image[CS4231_LINE_LEFT_OUTPUT]);
604		snd_wss_dout(chip, CS4231_LINE_RIGHT_OUTPUT,
605			     mute | chip->image[CS4231_LINE_RIGHT_OUTPUT]);
606	}
607	chip->calibrate_mute = mute;
608	spin_unlock_irqrestore(&chip->reg_lock, flags);
609}
610
611static void snd_wss_playback_format(struct snd_wss *chip,
612				       struct snd_pcm_hw_params *params,
613				       unsigned char pdfr)
614{
615	unsigned long flags;
616	int full_calib = 1;
617
618	mutex_lock(&chip->mce_mutex);
619	if (chip->hardware == WSS_HW_CS4231A ||
620	    (chip->hardware & WSS_HW_CS4232_MASK)) {
621		spin_lock_irqsave(&chip->reg_lock, flags);
622		if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) {	/* rate is same? */
623			snd_wss_out(chip, CS4231_ALT_FEATURE_1,
624				    chip->image[CS4231_ALT_FEATURE_1] | 0x10);
625			chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
626			snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
627				    chip->image[CS4231_PLAYBK_FORMAT]);
628			snd_wss_out(chip, CS4231_ALT_FEATURE_1,
629				    chip->image[CS4231_ALT_FEATURE_1] &= ~0x10);
630			udelay(100); /* Fixes audible clicks at least on GUS MAX */
631			full_calib = 0;
632		}
633		spin_unlock_irqrestore(&chip->reg_lock, flags);
634	} else if (chip->hardware == WSS_HW_AD1845) {
635		unsigned rate = params_rate(params);
636
637		/*
638		 * Program the AD1845 correctly for the playback stream.
639		 * Note that we do NOT need to toggle the MCE bit because
640		 * the PLAYBACK_ENABLE bit of the Interface Configuration
641		 * register is set.
642		 *
643		 * NOTE: We seem to need to write to the MSB before the LSB
644		 *       to get the correct sample frequency.
645		 */
646		spin_lock_irqsave(&chip->reg_lock, flags);
647		snd_wss_out(chip, CS4231_PLAYBK_FORMAT, (pdfr & 0xf0));
648		snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff);
649		snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff);
650		full_calib = 0;
651		spin_unlock_irqrestore(&chip->reg_lock, flags);
652	}
653	if (full_calib) {
654		snd_wss_mce_up(chip);
655		spin_lock_irqsave(&chip->reg_lock, flags);
656		if (chip->hardware != WSS_HW_INTERWAVE && !chip->single_dma) {
657			if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)
658				pdfr = (pdfr & 0xf0) |
659				       (chip->image[CS4231_REC_FORMAT] & 0x0f);
660		} else {
661			chip->image[CS4231_PLAYBK_FORMAT] = pdfr;
662		}
663		snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr);
664		spin_unlock_irqrestore(&chip->reg_lock, flags);
665		if (chip->hardware == WSS_HW_OPL3SA2)
666			udelay(100);	/* this seems to help */
667		snd_wss_mce_down(chip);
668	}
669	mutex_unlock(&chip->mce_mutex);
670}
671
672static void snd_wss_capture_format(struct snd_wss *chip,
673				   struct snd_pcm_hw_params *params,
674				   unsigned char cdfr)
675{
676	unsigned long flags;
677	int full_calib = 1;
678
679	mutex_lock(&chip->mce_mutex);
680	if (chip->hardware == WSS_HW_CS4231A ||
681	    (chip->hardware & WSS_HW_CS4232_MASK)) {
682		spin_lock_irqsave(&chip->reg_lock, flags);
683		if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) ||	/* rate is same? */
684		    (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
685			snd_wss_out(chip, CS4231_ALT_FEATURE_1,
686				chip->image[CS4231_ALT_FEATURE_1] | 0x20);
687			snd_wss_out(chip, CS4231_REC_FORMAT,
688				chip->image[CS4231_REC_FORMAT] = cdfr);
689			snd_wss_out(chip, CS4231_ALT_FEATURE_1,
690				chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
691			full_calib = 0;
692		}
693		spin_unlock_irqrestore(&chip->reg_lock, flags);
694	} else if (chip->hardware == WSS_HW_AD1845) {
695		unsigned rate = params_rate(params);
696
697		/*
698		 * Program the AD1845 correctly for the capture stream.
699		 * Note that we do NOT need to toggle the MCE bit because
700		 * the PLAYBACK_ENABLE bit of the Interface Configuration
701		 * register is set.
702		 *
703		 * NOTE: We seem to need to write to the MSB before the LSB
704		 *       to get the correct sample frequency.
705		 */
706		spin_lock_irqsave(&chip->reg_lock, flags);
707		snd_wss_out(chip, CS4231_REC_FORMAT, (cdfr & 0xf0));
708		snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff);
709		snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff);
710		full_calib = 0;
711		spin_unlock_irqrestore(&chip->reg_lock, flags);
712	}
713	if (full_calib) {
714		snd_wss_mce_up(chip);
715		spin_lock_irqsave(&chip->reg_lock, flags);
716		if (chip->hardware != WSS_HW_INTERWAVE &&
717		    !(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
718			if (chip->single_dma)
719				snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
720			else
721				snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
722				   (chip->image[CS4231_PLAYBK_FORMAT] & 0xf0) |
723				   (cdfr & 0x0f));
724			spin_unlock_irqrestore(&chip->reg_lock, flags);
725			snd_wss_mce_down(chip);
726			snd_wss_mce_up(chip);
727			spin_lock_irqsave(&chip->reg_lock, flags);
728		}
729		if (chip->hardware & WSS_HW_AD1848_MASK)
730			snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr);
731		else
732			snd_wss_out(chip, CS4231_REC_FORMAT, cdfr);
733		spin_unlock_irqrestore(&chip->reg_lock, flags);
734		snd_wss_mce_down(chip);
735	}
736	mutex_unlock(&chip->mce_mutex);
737}
738
739/*
740 *  Timer interface
741 */
742
743static unsigned long snd_wss_timer_resolution(struct snd_timer *timer)
744{
745	struct snd_wss *chip = snd_timer_chip(timer);
746	if (chip->hardware & WSS_HW_CS4236B_MASK)
747		return 14467;
748	else
749		return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
750}
751
752static int snd_wss_timer_start(struct snd_timer *timer)
753{
754	unsigned long flags;
755	unsigned int ticks;
756	struct snd_wss *chip = snd_timer_chip(timer);
757	spin_lock_irqsave(&chip->reg_lock, flags);
758	ticks = timer->sticks;
759	if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
760	    (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
761	    (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
762		chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8);
763		snd_wss_out(chip, CS4231_TIMER_HIGH,
764			    chip->image[CS4231_TIMER_HIGH]);
765		chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks;
766		snd_wss_out(chip, CS4231_TIMER_LOW,
767			    chip->image[CS4231_TIMER_LOW]);
768		snd_wss_out(chip, CS4231_ALT_FEATURE_1,
769			    chip->image[CS4231_ALT_FEATURE_1] |
770			    CS4231_TIMER_ENABLE);
771	}
772	spin_unlock_irqrestore(&chip->reg_lock, flags);
773	return 0;
774}
775
776static int snd_wss_timer_stop(struct snd_timer *timer)
777{
778	unsigned long flags;
779	struct snd_wss *chip = snd_timer_chip(timer);
780	spin_lock_irqsave(&chip->reg_lock, flags);
781	chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
782	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
783		    chip->image[CS4231_ALT_FEATURE_1]);
784	spin_unlock_irqrestore(&chip->reg_lock, flags);
785	return 0;
786}
787
788static void snd_wss_init(struct snd_wss *chip)
789{
790	unsigned long flags;
791
792	snd_wss_calibrate_mute(chip, 1);
793	snd_wss_mce_down(chip);
794
795#ifdef SNDRV_DEBUG_MCE
796	snd_printk(KERN_DEBUG "init: (1)\n");
797#endif
798	snd_wss_mce_up(chip);
799	spin_lock_irqsave(&chip->reg_lock, flags);
800	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
801					    CS4231_PLAYBACK_PIO |
802					    CS4231_RECORD_ENABLE |
803					    CS4231_RECORD_PIO |
804					    CS4231_CALIB_MODE);
805	chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
806	snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
807	spin_unlock_irqrestore(&chip->reg_lock, flags);
808	snd_wss_mce_down(chip);
809
810#ifdef SNDRV_DEBUG_MCE
811	snd_printk(KERN_DEBUG "init: (2)\n");
812#endif
813
814	snd_wss_mce_up(chip);
815	spin_lock_irqsave(&chip->reg_lock, flags);
816	chip->image[CS4231_IFACE_CTRL] &= ~CS4231_AUTOCALIB;
817	snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
818	snd_wss_out(chip,
819		    CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
820	spin_unlock_irqrestore(&chip->reg_lock, flags);
821	snd_wss_mce_down(chip);
822
823#ifdef SNDRV_DEBUG_MCE
824	snd_printk(KERN_DEBUG "init: (3) - afei = 0x%x\n",
825		   chip->image[CS4231_ALT_FEATURE_1]);
826#endif
827
828	spin_lock_irqsave(&chip->reg_lock, flags);
829	snd_wss_out(chip, CS4231_ALT_FEATURE_2,
830		    chip->image[CS4231_ALT_FEATURE_2]);
831	spin_unlock_irqrestore(&chip->reg_lock, flags);
832
833	snd_wss_mce_up(chip);
834	spin_lock_irqsave(&chip->reg_lock, flags);
835	snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
836		    chip->image[CS4231_PLAYBK_FORMAT]);
837	spin_unlock_irqrestore(&chip->reg_lock, flags);
838	snd_wss_mce_down(chip);
839
840#ifdef SNDRV_DEBUG_MCE
841	snd_printk(KERN_DEBUG "init: (4)\n");
842#endif
843
844	snd_wss_mce_up(chip);
845	spin_lock_irqsave(&chip->reg_lock, flags);
846	if (!(chip->hardware & WSS_HW_AD1848_MASK))
847		snd_wss_out(chip, CS4231_REC_FORMAT,
848			    chip->image[CS4231_REC_FORMAT]);
849	spin_unlock_irqrestore(&chip->reg_lock, flags);
850	snd_wss_mce_down(chip);
851	snd_wss_calibrate_mute(chip, 0);
852
853#ifdef SNDRV_DEBUG_MCE
854	snd_printk(KERN_DEBUG "init: (5)\n");
855#endif
856}
857
858static int snd_wss_open(struct snd_wss *chip, unsigned int mode)
859{
860	unsigned long flags;
861
862	mutex_lock(&chip->open_mutex);
863	if ((chip->mode & mode) ||
864	    ((chip->mode & WSS_MODE_OPEN) && chip->single_dma)) {
865		mutex_unlock(&chip->open_mutex);
866		return -EAGAIN;
867	}
868	if (chip->mode & WSS_MODE_OPEN) {
869		chip->mode |= mode;
870		mutex_unlock(&chip->open_mutex);
871		return 0;
872	}
873	/* ok. now enable and ack CODEC IRQ */
874	spin_lock_irqsave(&chip->reg_lock, flags);
875	if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
876		snd_wss_out(chip, CS4231_IRQ_STATUS,
877			    CS4231_PLAYBACK_IRQ |
878			    CS4231_RECORD_IRQ |
879			    CS4231_TIMER_IRQ);
880		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
881	}
882	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
883	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
884	chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
885	snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
886	if (!(chip->hardware & WSS_HW_AD1848_MASK)) {
887		snd_wss_out(chip, CS4231_IRQ_STATUS,
888			    CS4231_PLAYBACK_IRQ |
889			    CS4231_RECORD_IRQ |
890			    CS4231_TIMER_IRQ);
891		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
892	}
893	spin_unlock_irqrestore(&chip->reg_lock, flags);
894
895	chip->mode = mode;
896	mutex_unlock(&chip->open_mutex);
897	return 0;
898}
899
900static void snd_wss_close(struct snd_wss *chip, unsigned int mode)
901{
902	unsigned long flags;
903
904	mutex_lock(&chip->open_mutex);
905	chip->mode &= ~mode;
906	if (chip->mode & WSS_MODE_OPEN) {
907		mutex_unlock(&chip->open_mutex);
908		return;
909	}
910	/* disable IRQ */
911	spin_lock_irqsave(&chip->reg_lock, flags);
912	if (!(chip->hardware & WSS_HW_AD1848_MASK))
913		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
914	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
915	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
916	chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
917	snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
918
919	/* now disable record & playback */
920
921	if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
922					       CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
923		spin_unlock_irqrestore(&chip->reg_lock, flags);
924		snd_wss_mce_up(chip);
925		spin_lock_irqsave(&chip->reg_lock, flags);
926		chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
927						     CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
928		snd_wss_out(chip, CS4231_IFACE_CTRL,
929			    chip->image[CS4231_IFACE_CTRL]);
930		spin_unlock_irqrestore(&chip->reg_lock, flags);
931		snd_wss_mce_down(chip);
932		spin_lock_irqsave(&chip->reg_lock, flags);
933	}
934
935	/* clear IRQ again */
936	if (!(chip->hardware & WSS_HW_AD1848_MASK))
937		snd_wss_out(chip, CS4231_IRQ_STATUS, 0);
938	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
939	wss_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
940	spin_unlock_irqrestore(&chip->reg_lock, flags);
941
942	chip->mode = 0;
943	mutex_unlock(&chip->open_mutex);
944}
945
946/*
947 *  timer open/close
948 */
949
950static int snd_wss_timer_open(struct snd_timer *timer)
951{
952	struct snd_wss *chip = snd_timer_chip(timer);
953	snd_wss_open(chip, WSS_MODE_TIMER);
954	return 0;
955}
956
957static int snd_wss_timer_close(struct snd_timer *timer)
958{
959	struct snd_wss *chip = snd_timer_chip(timer);
960	snd_wss_close(chip, WSS_MODE_TIMER);
961	return 0;
962}
963
964static const struct snd_timer_hardware snd_wss_timer_table =
965{
966	.flags =	SNDRV_TIMER_HW_AUTO,
967	.resolution =	9945,
968	.ticks =	65535,
969	.open =		snd_wss_timer_open,
970	.close =	snd_wss_timer_close,
971	.c_resolution = snd_wss_timer_resolution,
972	.start =	snd_wss_timer_start,
973	.stop =		snd_wss_timer_stop,
974};
975
976/*
977 *  ok.. exported functions..
978 */
979
980static int snd_wss_playback_hw_params(struct snd_pcm_substream *substream,
981					 struct snd_pcm_hw_params *hw_params)
982{
983	struct snd_wss *chip = snd_pcm_substream_chip(substream);
984	unsigned char new_pdfr;
985
986	new_pdfr = snd_wss_get_format(chip, params_format(hw_params),
987				params_channels(hw_params)) |
988				snd_wss_get_rate(params_rate(hw_params));
989	chip->set_playback_format(chip, hw_params, new_pdfr);
990	return 0;
991}
992
993static int snd_wss_playback_prepare(struct snd_pcm_substream *substream)
994{
995	struct snd_wss *chip = snd_pcm_substream_chip(substream);
996	struct snd_pcm_runtime *runtime = substream->runtime;
997	unsigned long flags;
998	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
999	unsigned int count = snd_pcm_lib_period_bytes(substream);
1000
1001	spin_lock_irqsave(&chip->reg_lock, flags);
1002	chip->p_dma_size = size;
1003	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
1004	snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
1005	count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
1006	snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
1007	snd_wss_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
1008	spin_unlock_irqrestore(&chip->reg_lock, flags);
1009#if 0
1010	snd_wss_debug(chip);
1011#endif
1012	return 0;
1013}
1014
1015static int snd_wss_capture_hw_params(struct snd_pcm_substream *substream,
1016					struct snd_pcm_hw_params *hw_params)
1017{
1018	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1019	unsigned char new_cdfr;
1020
1021	new_cdfr = snd_wss_get_format(chip, params_format(hw_params),
1022			   params_channels(hw_params)) |
1023			   snd_wss_get_rate(params_rate(hw_params));
1024	chip->set_capture_format(chip, hw_params, new_cdfr);
1025	return 0;
1026}
1027
1028static int snd_wss_capture_prepare(struct snd_pcm_substream *substream)
1029{
1030	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1031	struct snd_pcm_runtime *runtime = substream->runtime;
1032	unsigned long flags;
1033	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
1034	unsigned int count = snd_pcm_lib_period_bytes(substream);
1035
1036	spin_lock_irqsave(&chip->reg_lock, flags);
1037	chip->c_dma_size = size;
1038	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
1039	snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
1040	if (chip->hardware & WSS_HW_AD1848_MASK)
1041		count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT],
1042					  count);
1043	else
1044		count = snd_wss_get_count(chip->image[CS4231_REC_FORMAT],
1045					  count);
1046	count--;
1047	if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
1048		snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
1049		snd_wss_out(chip, CS4231_PLY_UPR_CNT,
1050			    (unsigned char) (count >> 8));
1051	} else {
1052		snd_wss_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count);
1053		snd_wss_out(chip, CS4231_REC_UPR_CNT,
1054			    (unsigned char) (count >> 8));
1055	}
1056	spin_unlock_irqrestore(&chip->reg_lock, flags);
1057	return 0;
1058}
1059
1060void snd_wss_overrange(struct snd_wss *chip)
1061{
1062	unsigned long flags;
1063	unsigned char res;
1064
1065	spin_lock_irqsave(&chip->reg_lock, flags);
1066	res = snd_wss_in(chip, CS4231_TEST_INIT);
1067	spin_unlock_irqrestore(&chip->reg_lock, flags);
1068	if (res & (0x08 | 0x02))	/* detect overrange only above 0dB; may be user selectable? */
1069		chip->capture_substream->runtime->overrange++;
1070}
1071EXPORT_SYMBOL(snd_wss_overrange);
1072
1073irqreturn_t snd_wss_interrupt(int irq, void *dev_id)
1074{
1075	struct snd_wss *chip = dev_id;
1076	unsigned char status;
1077
1078	if (chip->hardware & WSS_HW_AD1848_MASK)
1079		/* pretend it was the only possible irq for AD1848 */
1080		status = CS4231_PLAYBACK_IRQ;
1081	else
1082		status = snd_wss_in(chip, CS4231_IRQ_STATUS);
1083	if (status & CS4231_TIMER_IRQ) {
1084		if (chip->timer)
1085			snd_timer_interrupt(chip->timer, chip->timer->sticks);
1086	}
1087	if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) {
1088		if (status & CS4231_PLAYBACK_IRQ) {
1089			if (chip->mode & WSS_MODE_PLAY) {
1090				if (chip->playback_substream)
1091					snd_pcm_period_elapsed(chip->playback_substream);
1092			}
1093			if (chip->mode & WSS_MODE_RECORD) {
1094				if (chip->capture_substream) {
1095					snd_wss_overrange(chip);
1096					snd_pcm_period_elapsed(chip->capture_substream);
1097				}
1098			}
1099		}
1100	} else {
1101		if (status & CS4231_PLAYBACK_IRQ) {
1102			if (chip->playback_substream)
1103				snd_pcm_period_elapsed(chip->playback_substream);
1104		}
1105		if (status & CS4231_RECORD_IRQ) {
1106			if (chip->capture_substream) {
1107				snd_wss_overrange(chip);
1108				snd_pcm_period_elapsed(chip->capture_substream);
1109			}
1110		}
1111	}
1112
1113	spin_lock(&chip->reg_lock);
1114	status = ~CS4231_ALL_IRQS | ~status;
1115	if (chip->hardware & WSS_HW_AD1848_MASK)
1116		wss_outb(chip, CS4231P(STATUS), 0);
1117	else
1118		snd_wss_out(chip, CS4231_IRQ_STATUS, status);
1119	spin_unlock(&chip->reg_lock);
1120	return IRQ_HANDLED;
1121}
1122EXPORT_SYMBOL(snd_wss_interrupt);
1123
1124static snd_pcm_uframes_t snd_wss_playback_pointer(struct snd_pcm_substream *substream)
1125{
1126	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1127	size_t ptr;
1128
1129	if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1130		return 0;
1131	ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
1132	return bytes_to_frames(substream->runtime, ptr);
1133}
1134
1135static snd_pcm_uframes_t snd_wss_capture_pointer(struct snd_pcm_substream *substream)
1136{
1137	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1138	size_t ptr;
1139
1140	if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1141		return 0;
1142	ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
1143	return bytes_to_frames(substream->runtime, ptr);
1144}
1145
1146/*
1147
1148 */
1149
1150static int snd_ad1848_probe(struct snd_wss *chip)
1151{
1152	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
1153	unsigned long flags;
1154	unsigned char r;
1155	unsigned short hardware = 0;
1156	int err = 0;
1157	int i;
1158
1159	while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
1160		if (time_after(jiffies, timeout))
1161			return -ENODEV;
1162		cond_resched();
1163	}
1164	spin_lock_irqsave(&chip->reg_lock, flags);
1165
1166	/* set CS423x MODE 1 */
1167	snd_wss_dout(chip, CS4231_MISC_INFO, 0);
1168
1169	snd_wss_dout(chip, CS4231_RIGHT_INPUT, 0x45); /* 0x55 & ~0x10 */
1170	r = snd_wss_in(chip, CS4231_RIGHT_INPUT);
1171	if (r != 0x45) {
1172		/* RMGE always high on AD1847 */
1173		if ((r & ~CS4231_ENABLE_MIC_GAIN) != 0x45) {
1174			err = -ENODEV;
1175			goto out;
1176		}
1177		hardware = WSS_HW_AD1847;
1178	} else {
1179		snd_wss_dout(chip, CS4231_LEFT_INPUT,  0xaa);
1180		r = snd_wss_in(chip, CS4231_LEFT_INPUT);
1181		/* L/RMGE always low on AT2320 */
1182		if ((r | CS4231_ENABLE_MIC_GAIN) != 0xaa) {
1183			err = -ENODEV;
1184			goto out;
1185		}
1186	}
1187
1188	/* clear pending IRQ */
1189	wss_inb(chip, CS4231P(STATUS));
1190	wss_outb(chip, CS4231P(STATUS), 0);
1191	mb();
1192
1193	if ((chip->hardware & WSS_HW_TYPE_MASK) != WSS_HW_DETECT)
1194		goto out;
1195
1196	if (hardware) {
1197		chip->hardware = hardware;
1198		goto out;
1199	}
1200
1201	r = snd_wss_in(chip, CS4231_MISC_INFO);
1202
1203	/* set CS423x MODE 2 */
1204	snd_wss_dout(chip, CS4231_MISC_INFO, CS4231_MODE2);
1205	for (i = 0; i < 16; i++) {
1206		if (snd_wss_in(chip, i) != snd_wss_in(chip, 16 + i)) {
1207			/* we have more than 16 registers: check ID */
1208			if ((r & 0xf) != 0xa)
1209				goto out_mode;
1210			/*
1211			 * on CMI8330, CS4231_VERSION is volume control and
1212			 * can be set to 0
1213			 */
1214			snd_wss_dout(chip, CS4231_VERSION, 0);
1215			r = snd_wss_in(chip, CS4231_VERSION) & 0xe7;
1216			if (!r)
1217				chip->hardware = WSS_HW_CMI8330;
1218			goto out_mode;
1219		}
1220	}
1221	if (r & 0x80)
1222		chip->hardware = WSS_HW_CS4248;
1223	else
1224		chip->hardware = WSS_HW_AD1848;
1225out_mode:
1226	snd_wss_dout(chip, CS4231_MISC_INFO, 0);
1227out:
1228	spin_unlock_irqrestore(&chip->reg_lock, flags);
1229	return err;
1230}
1231
1232static int snd_wss_probe(struct snd_wss *chip)
1233{
1234	unsigned long flags;
1235	int i, id, rev, regnum;
1236	unsigned char *ptr;
1237	unsigned int hw;
1238
1239	id = snd_ad1848_probe(chip);
1240	if (id < 0)
1241		return id;
1242
1243	hw = chip->hardware;
1244	if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) {
1245		for (i = 0; i < 50; i++) {
1246			mb();
1247			if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
1248				msleep(2);
1249			else {
1250				spin_lock_irqsave(&chip->reg_lock, flags);
1251				snd_wss_out(chip, CS4231_MISC_INFO,
1252					    CS4231_MODE2);
1253				id = snd_wss_in(chip, CS4231_MISC_INFO) & 0x0f;
1254				spin_unlock_irqrestore(&chip->reg_lock, flags);
1255				if (id == 0x0a)
1256					break;	/* this is valid value */
1257			}
1258		}
1259		snd_printdd("wss: port = 0x%lx, id = 0x%x\n", chip->port, id);
1260		if (id != 0x0a)
1261			return -ENODEV;	/* no valid device found */
1262
1263		rev = snd_wss_in(chip, CS4231_VERSION) & 0xe7;
1264		snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev);
1265		if (rev == 0x80) {
1266			unsigned char tmp = snd_wss_in(chip, 23);
1267			snd_wss_out(chip, 23, ~tmp);
1268			if (snd_wss_in(chip, 23) != tmp)
1269				chip->hardware = WSS_HW_AD1845;
1270			else
1271				chip->hardware = WSS_HW_CS4231;
1272		} else if (rev == 0xa0) {
1273			chip->hardware = WSS_HW_CS4231A;
1274		} else if (rev == 0xa2) {
1275			chip->hardware = WSS_HW_CS4232;
1276		} else if (rev == 0xb2) {
1277			chip->hardware = WSS_HW_CS4232A;
1278		} else if (rev == 0x83) {
1279			chip->hardware = WSS_HW_CS4236;
1280		} else if (rev == 0x03) {
1281			chip->hardware = WSS_HW_CS4236B;
1282		} else {
1283			snd_printk(KERN_ERR
1284				   "unknown CS chip with version 0x%x\n", rev);
1285			return -ENODEV;		/* unknown CS4231 chip? */
1286		}
1287	}
1288	spin_lock_irqsave(&chip->reg_lock, flags);
1289	wss_inb(chip, CS4231P(STATUS));	/* clear any pendings IRQ */
1290	wss_outb(chip, CS4231P(STATUS), 0);
1291	mb();
1292	spin_unlock_irqrestore(&chip->reg_lock, flags);
1293
1294	if (!(chip->hardware & WSS_HW_AD1848_MASK))
1295		chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1296	switch (chip->hardware) {
1297	case WSS_HW_INTERWAVE:
1298		chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3;
1299		break;
1300	case WSS_HW_CS4235:
1301	case WSS_HW_CS4236B:
1302	case WSS_HW_CS4237B:
1303	case WSS_HW_CS4238B:
1304	case WSS_HW_CS4239:
1305		if (hw == WSS_HW_DETECT3)
1306			chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3;
1307		else
1308			chip->hardware = WSS_HW_CS4236;
1309		break;
1310	}
1311
1312	chip->image[CS4231_IFACE_CTRL] =
1313	    (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) |
1314	    (chip->single_dma ? CS4231_SINGLE_DMA : 0);
1315	if (chip->hardware != WSS_HW_OPTI93X) {
1316		chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1317		chip->image[CS4231_ALT_FEATURE_2] =
1318			chip->hardware == WSS_HW_INTERWAVE ? 0xc2 : 0x01;
1319	}
1320	/* enable fine grained frequency selection */
1321	if (chip->hardware == WSS_HW_AD1845)
1322		chip->image[AD1845_PWR_DOWN] = 8;
1323
1324	ptr = (unsigned char *) &chip->image;
1325	regnum = (chip->hardware & WSS_HW_AD1848_MASK) ? 16 : 32;
1326	snd_wss_mce_down(chip);
1327	spin_lock_irqsave(&chip->reg_lock, flags);
1328	for (i = 0; i < regnum; i++)	/* ok.. fill all registers */
1329		snd_wss_out(chip, i, *ptr++);
1330	spin_unlock_irqrestore(&chip->reg_lock, flags);
1331	snd_wss_mce_up(chip);
1332	snd_wss_mce_down(chip);
1333
1334	mdelay(2);
1335
1336	/* ok.. try check hardware version for CS4236+ chips */
1337	if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) {
1338		if (chip->hardware == WSS_HW_CS4236B) {
1339			rev = snd_cs4236_ext_in(chip, CS4236_VERSION);
1340			snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff);
1341			id = snd_cs4236_ext_in(chip, CS4236_VERSION);
1342			snd_cs4236_ext_out(chip, CS4236_VERSION, rev);
1343			snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id);
1344			if ((id & 0x1f) == 0x1d) {	/* CS4235 */
1345				chip->hardware = WSS_HW_CS4235;
1346				switch (id >> 5) {
1347				case 4:
1348				case 5:
1349				case 6:
1350					break;
1351				default:
1352					snd_printk(KERN_WARNING
1353						"unknown CS4235 chip "
1354						"(enhanced version = 0x%x)\n",
1355						id);
1356				}
1357			} else if ((id & 0x1f) == 0x0b) {	/* CS4236/B */
1358				switch (id >> 5) {
1359				case 4:
1360				case 5:
1361				case 6:
1362				case 7:
1363					chip->hardware = WSS_HW_CS4236B;
1364					break;
1365				default:
1366					snd_printk(KERN_WARNING
1367						"unknown CS4236 chip "
1368						"(enhanced version = 0x%x)\n",
1369						id);
1370				}
1371			} else if ((id & 0x1f) == 0x08) {	/* CS4237B */
1372				chip->hardware = WSS_HW_CS4237B;
1373				switch (id >> 5) {
1374				case 4:
1375				case 5:
1376				case 6:
1377				case 7:
1378					break;
1379				default:
1380					snd_printk(KERN_WARNING
1381						"unknown CS4237B chip "
1382						"(enhanced version = 0x%x)\n",
1383						id);
1384				}
1385			} else if ((id & 0x1f) == 0x09) {	/* CS4238B */
1386				chip->hardware = WSS_HW_CS4238B;
1387				switch (id >> 5) {
1388				case 5:
1389				case 6:
1390				case 7:
1391					break;
1392				default:
1393					snd_printk(KERN_WARNING
1394						"unknown CS4238B chip "
1395						"(enhanced version = 0x%x)\n",
1396						id);
1397				}
1398			} else if ((id & 0x1f) == 0x1e) {	/* CS4239 */
1399				chip->hardware = WSS_HW_CS4239;
1400				switch (id >> 5) {
1401				case 4:
1402				case 5:
1403				case 6:
1404					break;
1405				default:
1406					snd_printk(KERN_WARNING
1407						"unknown CS4239 chip "
1408						"(enhanced version = 0x%x)\n",
1409						id);
1410				}
1411			} else {
1412				snd_printk(KERN_WARNING
1413					   "unknown CS4236/CS423xB chip "
1414					   "(enhanced version = 0x%x)\n", id);
1415			}
1416		}
1417	}
1418	return 0;		/* all things are ok.. */
1419}
1420
1421/*
1422
1423 */
1424
1425static const struct snd_pcm_hardware snd_wss_playback =
1426{
1427	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1428				 SNDRV_PCM_INFO_MMAP_VALID |
1429				 SNDRV_PCM_INFO_SYNC_START),
1430	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1431				 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1432	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1433	.rate_min =		5510,
1434	.rate_max =		48000,
1435	.channels_min =		1,
1436	.channels_max =		2,
1437	.buffer_bytes_max =	(128*1024),
1438	.period_bytes_min =	64,
1439	.period_bytes_max =	(128*1024),
1440	.periods_min =		1,
1441	.periods_max =		1024,
1442	.fifo_size =		0,
1443};
1444
1445static const struct snd_pcm_hardware snd_wss_capture =
1446{
1447	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1448				 SNDRV_PCM_INFO_MMAP_VALID |
1449				 SNDRV_PCM_INFO_RESUME |
1450				 SNDRV_PCM_INFO_SYNC_START),
1451	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
1452				 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
1453	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1454	.rate_min =		5510,
1455	.rate_max =		48000,
1456	.channels_min =		1,
1457	.channels_max =		2,
1458	.buffer_bytes_max =	(128*1024),
1459	.period_bytes_min =	64,
1460	.period_bytes_max =	(128*1024),
1461	.periods_min =		1,
1462	.periods_max =		1024,
1463	.fifo_size =		0,
1464};
1465
1466/*
1467
1468 */
1469
1470static int snd_wss_playback_open(struct snd_pcm_substream *substream)
1471{
1472	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1473	struct snd_pcm_runtime *runtime = substream->runtime;
1474	int err;
1475
1476	runtime->hw = snd_wss_playback;
1477
1478	/* hardware limitation of older chipsets */
1479	if (chip->hardware & WSS_HW_AD1848_MASK)
1480		runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
1481					 SNDRV_PCM_FMTBIT_S16_BE);
1482
1483	/* hardware bug in InterWave chipset */
1484	if (chip->hardware == WSS_HW_INTERWAVE && chip->dma1 > 3)
1485		runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
1486
1487	/* hardware limitation of cheap chips */
1488	if (chip->hardware == WSS_HW_CS4235 ||
1489	    chip->hardware == WSS_HW_CS4239)
1490		runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
1491
1492	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
1493	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
1494
1495	if (chip->claim_dma) {
1496		err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1);
1497		if (err < 0)
1498			return err;
1499	}
1500
1501	err = snd_wss_open(chip, WSS_MODE_PLAY);
1502	if (err < 0) {
1503		if (chip->release_dma)
1504			chip->release_dma(chip, chip->dma_private_data, chip->dma1);
1505		return err;
1506	}
1507	chip->playback_substream = substream;
1508	snd_pcm_set_sync(substream);
1509	chip->rate_constraint(runtime);
1510	return 0;
1511}
1512
1513static int snd_wss_capture_open(struct snd_pcm_substream *substream)
1514{
1515	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1516	struct snd_pcm_runtime *runtime = substream->runtime;
1517	int err;
1518
1519	runtime->hw = snd_wss_capture;
1520
1521	/* hardware limitation of older chipsets */
1522	if (chip->hardware & WSS_HW_AD1848_MASK)
1523		runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM |
1524					 SNDRV_PCM_FMTBIT_S16_BE);
1525
1526	/* hardware limitation of cheap chips */
1527	if (chip->hardware == WSS_HW_CS4235 ||
1528	    chip->hardware == WSS_HW_CS4239 ||
1529	    chip->hardware == WSS_HW_OPTI93X)
1530		runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 |
1531				      SNDRV_PCM_FMTBIT_S16_LE;
1532
1533	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
1534	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
1535
1536	if (chip->claim_dma) {
1537		err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2);
1538		if (err < 0)
1539			return err;
1540	}
1541
1542	err = snd_wss_open(chip, WSS_MODE_RECORD);
1543	if (err < 0) {
1544		if (chip->release_dma)
1545			chip->release_dma(chip, chip->dma_private_data, chip->dma2);
1546		return err;
1547	}
1548	chip->capture_substream = substream;
1549	snd_pcm_set_sync(substream);
1550	chip->rate_constraint(runtime);
1551	return 0;
1552}
1553
1554static int snd_wss_playback_close(struct snd_pcm_substream *substream)
1555{
1556	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1557
1558	chip->playback_substream = NULL;
1559	snd_wss_close(chip, WSS_MODE_PLAY);
1560	return 0;
1561}
1562
1563static int snd_wss_capture_close(struct snd_pcm_substream *substream)
1564{
1565	struct snd_wss *chip = snd_pcm_substream_chip(substream);
1566
1567	chip->capture_substream = NULL;
1568	snd_wss_close(chip, WSS_MODE_RECORD);
1569	return 0;
1570}
1571
1572static void snd_wss_thinkpad_twiddle(struct snd_wss *chip, int on)
1573{
1574	int tmp;
1575
1576	if (!chip->thinkpad_flag)
1577		return;
1578
1579	outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
1580	tmp = inb(AD1848_THINKPAD_CTL_PORT2);
1581
1582	if (on)
1583		/* turn it on */
1584		tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
1585	else
1586		/* turn it off */
1587		tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
1588
1589	outb(tmp, AD1848_THINKPAD_CTL_PORT2);
1590}
1591
1592#ifdef CONFIG_PM
1593
1594/* lowlevel suspend callback for CS4231 */
1595static void snd_wss_suspend(struct snd_wss *chip)
1596{
1597	int reg;
1598	unsigned long flags;
1599
1600	spin_lock_irqsave(&chip->reg_lock, flags);
1601	for (reg = 0; reg < 32; reg++)
1602		chip->image[reg] = snd_wss_in(chip, reg);
1603	spin_unlock_irqrestore(&chip->reg_lock, flags);
1604	if (chip->thinkpad_flag)
1605		snd_wss_thinkpad_twiddle(chip, 0);
1606}
1607
1608/* lowlevel resume callback for CS4231 */
1609static void snd_wss_resume(struct snd_wss *chip)
1610{
1611	int reg;
1612	unsigned long flags;
1613	/* int timeout; */
1614
1615	if (chip->thinkpad_flag)
1616		snd_wss_thinkpad_twiddle(chip, 1);
1617	snd_wss_mce_up(chip);
1618	spin_lock_irqsave(&chip->reg_lock, flags);
1619	for (reg = 0; reg < 32; reg++) {
1620		switch (reg) {
1621		case CS4231_VERSION:
1622			break;
1623		default:
1624			snd_wss_out(chip, reg, chip->image[reg]);
1625			break;
1626		}
1627	}
1628	/* Yamaha needs this to resume properly */
1629	if (chip->hardware == WSS_HW_OPL3SA2)
1630		snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
1631			    chip->image[CS4231_PLAYBK_FORMAT]);
1632	spin_unlock_irqrestore(&chip->reg_lock, flags);
1633#if 1
1634	snd_wss_mce_down(chip);
1635#else
1636	/* The following is a workaround to avoid freeze after resume on TP600E.
1637	   This is the first half of copy of snd_wss_mce_down(), but doesn't
1638	   include rescheduling.  -- iwai
1639	   */
1640	snd_wss_busy_wait(chip);
1641	spin_lock_irqsave(&chip->reg_lock, flags);
1642	chip->mce_bit &= ~CS4231_MCE;
1643	timeout = wss_inb(chip, CS4231P(REGSEL));
1644	wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
1645	spin_unlock_irqrestore(&chip->reg_lock, flags);
1646	if (timeout == 0x80)
1647		snd_printk(KERN_ERR "down [0x%lx]: serious init problem "
1648			   "- codec still busy\n", chip->port);
1649	if ((timeout & CS4231_MCE) == 0 ||
1650	    !(chip->hardware & (WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK))) {
1651		return;
1652	}
1653	snd_wss_busy_wait(chip);
1654#endif
1655}
1656#endif /* CONFIG_PM */
1657
1658const char *snd_wss_chip_id(struct snd_wss *chip)
1659{
1660	switch (chip->hardware) {
1661	case WSS_HW_CS4231:
1662		return "CS4231";
1663	case WSS_HW_CS4231A:
1664		return "CS4231A";
1665	case WSS_HW_CS4232:
1666		return "CS4232";
1667	case WSS_HW_CS4232A:
1668		return "CS4232A";
1669	case WSS_HW_CS4235:
1670		return "CS4235";
1671	case WSS_HW_CS4236:
1672		return "CS4236";
1673	case WSS_HW_CS4236B:
1674		return "CS4236B";
1675	case WSS_HW_CS4237B:
1676		return "CS4237B";
1677	case WSS_HW_CS4238B:
1678		return "CS4238B";
1679	case WSS_HW_CS4239:
1680		return "CS4239";
1681	case WSS_HW_INTERWAVE:
1682		return "AMD InterWave";
1683	case WSS_HW_OPL3SA2:
1684		return chip->card->shortname;
1685	case WSS_HW_AD1845:
1686		return "AD1845";
1687	case WSS_HW_OPTI93X:
1688		return "OPTi 93x";
1689	case WSS_HW_AD1847:
1690		return "AD1847";
1691	case WSS_HW_AD1848:
1692		return "AD1848";
1693	case WSS_HW_CS4248:
1694		return "CS4248";
1695	case WSS_HW_CMI8330:
1696		return "CMI8330/C3D";
1697	default:
1698		return "???";
1699	}
1700}
1701EXPORT_SYMBOL(snd_wss_chip_id);
1702
1703static int snd_wss_new(struct snd_card *card,
1704			  unsigned short hardware,
1705			  unsigned short hwshare,
1706			  struct snd_wss **rchip)
1707{
1708	struct snd_wss *chip;
1709
1710	*rchip = NULL;
1711	chip = devm_kzalloc(card->dev, sizeof(*chip), GFP_KERNEL);
1712	if (chip == NULL)
1713		return -ENOMEM;
1714	chip->hardware = hardware;
1715	chip->hwshare = hwshare;
1716
1717	spin_lock_init(&chip->reg_lock);
1718	mutex_init(&chip->mce_mutex);
1719	mutex_init(&chip->open_mutex);
1720	chip->card = card;
1721	chip->rate_constraint = snd_wss_xrate;
1722	chip->set_playback_format = snd_wss_playback_format;
1723	chip->set_capture_format = snd_wss_capture_format;
1724	if (chip->hardware == WSS_HW_OPTI93X)
1725		memcpy(&chip->image, &snd_opti93x_original_image,
1726		       sizeof(snd_opti93x_original_image));
1727	else
1728		memcpy(&chip->image, &snd_wss_original_image,
1729		       sizeof(snd_wss_original_image));
1730	if (chip->hardware & WSS_HW_AD1848_MASK) {
1731		chip->image[CS4231_PIN_CTRL] = 0;
1732		chip->image[CS4231_TEST_INIT] = 0;
1733	}
1734
1735	*rchip = chip;
1736	return 0;
1737}
1738
1739int snd_wss_create(struct snd_card *card,
1740		      unsigned long port,
1741		      unsigned long cport,
1742		      int irq, int dma1, int dma2,
1743		      unsigned short hardware,
1744		      unsigned short hwshare,
1745		      struct snd_wss **rchip)
1746{
1747	struct snd_wss *chip;
1748	int err;
1749
1750	err = snd_wss_new(card, hardware, hwshare, &chip);
1751	if (err < 0)
1752		return err;
1753
1754	chip->irq = -1;
1755	chip->dma1 = -1;
1756	chip->dma2 = -1;
1757
1758	chip->res_port = devm_request_region(card->dev, port, 4, "WSS");
1759	if (!chip->res_port) {
1760		snd_printk(KERN_ERR "wss: can't grab port 0x%lx\n", port);
1761		return -EBUSY;
1762	}
1763	chip->port = port;
1764	if ((long)cport >= 0) {
1765		chip->res_cport = devm_request_region(card->dev, cport, 8,
1766						      "CS4232 Control");
1767		if (!chip->res_cport) {
1768			snd_printk(KERN_ERR
1769				"wss: can't grab control port 0x%lx\n", cport);
1770			return -ENODEV;
1771		}
1772	}
1773	chip->cport = cport;
1774	if (!(hwshare & WSS_HWSHARE_IRQ))
1775		if (devm_request_irq(card->dev, irq, snd_wss_interrupt, 0,
1776				     "WSS", (void *) chip)) {
1777			snd_printk(KERN_ERR "wss: can't grab IRQ %d\n", irq);
1778			return -EBUSY;
1779		}
1780	chip->irq = irq;
1781	card->sync_irq = chip->irq;
1782	if (!(hwshare & WSS_HWSHARE_DMA1) &&
1783	    snd_devm_request_dma(card->dev, dma1, "WSS - 1")) {
1784		snd_printk(KERN_ERR "wss: can't grab DMA1 %d\n", dma1);
1785		return -EBUSY;
1786	}
1787	chip->dma1 = dma1;
1788	if (!(hwshare & WSS_HWSHARE_DMA2) && dma1 != dma2 && dma2 >= 0 &&
1789	    snd_devm_request_dma(card->dev, dma2, "WSS - 2")) {
1790		snd_printk(KERN_ERR "wss: can't grab DMA2 %d\n", dma2);
1791		return -EBUSY;
1792	}
1793	if (dma1 == dma2 || dma2 < 0) {
1794		chip->single_dma = 1;
1795		chip->dma2 = chip->dma1;
1796	} else
1797		chip->dma2 = dma2;
1798
1799	if (hardware == WSS_HW_THINKPAD) {
1800		chip->thinkpad_flag = 1;
1801		chip->hardware = WSS_HW_DETECT; /* reset */
1802		snd_wss_thinkpad_twiddle(chip, 1);
1803	}
1804
1805	/* global setup */
1806	if (snd_wss_probe(chip) < 0)
1807		return -ENODEV;
1808	snd_wss_init(chip);
1809
1810#if 0
1811	if (chip->hardware & WSS_HW_CS4232_MASK) {
1812		if (chip->res_cport == NULL)
1813			snd_printk(KERN_ERR "CS4232 control port features are "
1814				   "not accessible\n");
1815	}
1816#endif
1817
1818#ifdef CONFIG_PM
1819	/* Power Management */
1820	chip->suspend = snd_wss_suspend;
1821	chip->resume = snd_wss_resume;
1822#endif
1823
1824	*rchip = chip;
1825	return 0;
1826}
1827EXPORT_SYMBOL(snd_wss_create);
1828
1829static const struct snd_pcm_ops snd_wss_playback_ops = {
1830	.open =		snd_wss_playback_open,
1831	.close =	snd_wss_playback_close,
1832	.hw_params =	snd_wss_playback_hw_params,
1833	.prepare =	snd_wss_playback_prepare,
1834	.trigger =	snd_wss_trigger,
1835	.pointer =	snd_wss_playback_pointer,
1836};
1837
1838static const struct snd_pcm_ops snd_wss_capture_ops = {
1839	.open =		snd_wss_capture_open,
1840	.close =	snd_wss_capture_close,
1841	.hw_params =	snd_wss_capture_hw_params,
1842	.prepare =	snd_wss_capture_prepare,
1843	.trigger =	snd_wss_trigger,
1844	.pointer =	snd_wss_capture_pointer,
1845};
1846
1847int snd_wss_pcm(struct snd_wss *chip, int device)
1848{
1849	struct snd_pcm *pcm;
1850	int err;
1851
1852	err = snd_pcm_new(chip->card, "WSS", device, 1, 1, &pcm);
1853	if (err < 0)
1854		return err;
1855
1856	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_wss_playback_ops);
1857	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_wss_capture_ops);
1858
1859	/* global setup */
1860	pcm->private_data = chip;
1861	pcm->info_flags = 0;
1862	if (chip->single_dma)
1863		pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
1864	if (chip->hardware != WSS_HW_INTERWAVE)
1865		pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
1866	strcpy(pcm->name, snd_wss_chip_id(chip));
1867
1868	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, chip->card->dev,
1869				       64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
1870
1871	chip->pcm = pcm;
1872	return 0;
1873}
1874EXPORT_SYMBOL(snd_wss_pcm);
1875
1876static void snd_wss_timer_free(struct snd_timer *timer)
1877{
1878	struct snd_wss *chip = timer->private_data;
1879	chip->timer = NULL;
1880}
1881
1882int snd_wss_timer(struct snd_wss *chip, int device)
1883{
1884	struct snd_timer *timer;
1885	struct snd_timer_id tid;
1886	int err;
1887
1888	/* Timer initialization */
1889	tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1890	tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1891	tid.card = chip->card->number;
1892	tid.device = device;
1893	tid.subdevice = 0;
1894	err = snd_timer_new(chip->card, "CS4231", &tid, &timer);
1895	if (err < 0)
1896		return err;
1897	strcpy(timer->name, snd_wss_chip_id(chip));
1898	timer->private_data = chip;
1899	timer->private_free = snd_wss_timer_free;
1900	timer->hw = snd_wss_timer_table;
1901	chip->timer = timer;
1902	return 0;
1903}
1904EXPORT_SYMBOL(snd_wss_timer);
1905
1906/*
1907 *  MIXER part
1908 */
1909
1910static int snd_wss_info_mux(struct snd_kcontrol *kcontrol,
1911			    struct snd_ctl_elem_info *uinfo)
1912{
1913	static const char * const texts[4] = {
1914		"Line", "Aux", "Mic", "Mix"
1915	};
1916	static const char * const opl3sa_texts[4] = {
1917		"Line", "CD", "Mic", "Mix"
1918	};
1919	static const char * const gusmax_texts[4] = {
1920		"Line", "Synth", "Mic", "Mix"
1921	};
1922	const char * const *ptexts = texts;
1923	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1924
1925	if (snd_BUG_ON(!chip->card))
1926		return -EINVAL;
1927	if (!strcmp(chip->card->driver, "GUS MAX"))
1928		ptexts = gusmax_texts;
1929	switch (chip->hardware) {
1930	case WSS_HW_INTERWAVE:
1931		ptexts = gusmax_texts;
1932		break;
1933	case WSS_HW_OPTI93X:
1934	case WSS_HW_OPL3SA2:
1935		ptexts = opl3sa_texts;
1936		break;
1937	}
1938	return snd_ctl_enum_info(uinfo, 2, 4, ptexts);
1939}
1940
1941static int snd_wss_get_mux(struct snd_kcontrol *kcontrol,
1942			   struct snd_ctl_elem_value *ucontrol)
1943{
1944	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1945	unsigned long flags;
1946
1947	spin_lock_irqsave(&chip->reg_lock, flags);
1948	ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1949	ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1950	spin_unlock_irqrestore(&chip->reg_lock, flags);
1951	return 0;
1952}
1953
1954static int snd_wss_put_mux(struct snd_kcontrol *kcontrol,
1955			   struct snd_ctl_elem_value *ucontrol)
1956{
1957	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1958	unsigned long flags;
1959	unsigned short left, right;
1960	int change;
1961
1962	if (ucontrol->value.enumerated.item[0] > 3 ||
1963	    ucontrol->value.enumerated.item[1] > 3)
1964		return -EINVAL;
1965	left = ucontrol->value.enumerated.item[0] << 6;
1966	right = ucontrol->value.enumerated.item[1] << 6;
1967	spin_lock_irqsave(&chip->reg_lock, flags);
1968	left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1969	right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1970	change = left != chip->image[CS4231_LEFT_INPUT] ||
1971		 right != chip->image[CS4231_RIGHT_INPUT];
1972	snd_wss_out(chip, CS4231_LEFT_INPUT, left);
1973	snd_wss_out(chip, CS4231_RIGHT_INPUT, right);
1974	spin_unlock_irqrestore(&chip->reg_lock, flags);
1975	return change;
1976}
1977
1978int snd_wss_info_single(struct snd_kcontrol *kcontrol,
1979			struct snd_ctl_elem_info *uinfo)
1980{
1981	int mask = (kcontrol->private_value >> 16) & 0xff;
1982
1983	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1984	uinfo->count = 1;
1985	uinfo->value.integer.min = 0;
1986	uinfo->value.integer.max = mask;
1987	return 0;
1988}
1989EXPORT_SYMBOL(snd_wss_info_single);
1990
1991int snd_wss_get_single(struct snd_kcontrol *kcontrol,
1992		       struct snd_ctl_elem_value *ucontrol)
1993{
1994	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
1995	unsigned long flags;
1996	int reg = kcontrol->private_value & 0xff;
1997	int shift = (kcontrol->private_value >> 8) & 0xff;
1998	int mask = (kcontrol->private_value >> 16) & 0xff;
1999	int invert = (kcontrol->private_value >> 24) & 0xff;
2000
2001	spin_lock_irqsave(&chip->reg_lock, flags);
2002	ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
2003	spin_unlock_irqrestore(&chip->reg_lock, flags);
2004	if (invert)
2005		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
2006	return 0;
2007}
2008EXPORT_SYMBOL(snd_wss_get_single);
2009
2010int snd_wss_put_single(struct snd_kcontrol *kcontrol,
2011		       struct snd_ctl_elem_value *ucontrol)
2012{
2013	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2014	unsigned long flags;
2015	int reg = kcontrol->private_value & 0xff;
2016	int shift = (kcontrol->private_value >> 8) & 0xff;
2017	int mask = (kcontrol->private_value >> 16) & 0xff;
2018	int invert = (kcontrol->private_value >> 24) & 0xff;
2019	int change;
2020	unsigned short val;
2021
2022	val = (ucontrol->value.integer.value[0] & mask);
2023	if (invert)
2024		val = mask - val;
2025	val <<= shift;
2026	spin_lock_irqsave(&chip->reg_lock, flags);
2027	val = (chip->image[reg] & ~(mask << shift)) | val;
2028	change = val != chip->image[reg];
2029	snd_wss_out(chip, reg, val);
2030	spin_unlock_irqrestore(&chip->reg_lock, flags);
2031	return change;
2032}
2033EXPORT_SYMBOL(snd_wss_put_single);
2034
2035int snd_wss_info_double(struct snd_kcontrol *kcontrol,
2036			struct snd_ctl_elem_info *uinfo)
2037{
2038	int mask = (kcontrol->private_value >> 24) & 0xff;
2039
2040	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
2041	uinfo->count = 2;
2042	uinfo->value.integer.min = 0;
2043	uinfo->value.integer.max = mask;
2044	return 0;
2045}
2046EXPORT_SYMBOL(snd_wss_info_double);
2047
2048int snd_wss_get_double(struct snd_kcontrol *kcontrol,
2049		       struct snd_ctl_elem_value *ucontrol)
2050{
2051	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2052	unsigned long flags;
2053	int left_reg = kcontrol->private_value & 0xff;
2054	int right_reg = (kcontrol->private_value >> 8) & 0xff;
2055	int shift_left = (kcontrol->private_value >> 16) & 0x07;
2056	int shift_right = (kcontrol->private_value >> 19) & 0x07;
2057	int mask = (kcontrol->private_value >> 24) & 0xff;
2058	int invert = (kcontrol->private_value >> 22) & 1;
2059
2060	spin_lock_irqsave(&chip->reg_lock, flags);
2061	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
2062	ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
2063	spin_unlock_irqrestore(&chip->reg_lock, flags);
2064	if (invert) {
2065		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
2066		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
2067	}
2068	return 0;
2069}
2070EXPORT_SYMBOL(snd_wss_get_double);
2071
2072int snd_wss_put_double(struct snd_kcontrol *kcontrol,
2073		       struct snd_ctl_elem_value *ucontrol)
2074{
2075	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
2076	unsigned long flags;
2077	int left_reg = kcontrol->private_value & 0xff;
2078	int right_reg = (kcontrol->private_value >> 8) & 0xff;
2079	int shift_left = (kcontrol->private_value >> 16) & 0x07;
2080	int shift_right = (kcontrol->private_value >> 19) & 0x07;
2081	int mask = (kcontrol->private_value >> 24) & 0xff;
2082	int invert = (kcontrol->private_value >> 22) & 1;
2083	int change;
2084	unsigned short val1, val2;
2085
2086	val1 = ucontrol->value.integer.value[0] & mask;
2087	val2 = ucontrol->value.integer.value[1] & mask;
2088	if (invert) {
2089		val1 = mask - val1;
2090		val2 = mask - val2;
2091	}
2092	val1 <<= shift_left;
2093	val2 <<= shift_right;
2094	spin_lock_irqsave(&chip->reg_lock, flags);
2095	if (left_reg != right_reg) {
2096		val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
2097		val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
2098		change = val1 != chip->image[left_reg] ||
2099			 val2 != chip->image[right_reg];
2100		snd_wss_out(chip, left_reg, val1);
2101		snd_wss_out(chip, right_reg, val2);
2102	} else {
2103		mask = (mask << shift_left) | (mask << shift_right);
2104		val1 = (chip->image[left_reg] & ~mask) | val1 | val2;
2105		change = val1 != chip->image[left_reg];
2106		snd_wss_out(chip, left_reg, val1);
2107	}
2108	spin_unlock_irqrestore(&chip->reg_lock, flags);
2109	return change;
2110}
2111EXPORT_SYMBOL(snd_wss_put_double);
2112
2113static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
2114static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
2115static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
2116static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
2117
2118static const struct snd_kcontrol_new snd_wss_controls[] = {
2119WSS_DOUBLE("PCM Playback Switch", 0,
2120		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
2121WSS_DOUBLE_TLV("PCM Playback Volume", 0,
2122		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1,
2123		db_scale_6bit),
2124WSS_DOUBLE("Aux Playback Switch", 0,
2125		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
2126WSS_DOUBLE_TLV("Aux Playback Volume", 0,
2127		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
2128		db_scale_5bit_12db_max),
2129WSS_DOUBLE("Aux Playback Switch", 1,
2130		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
2131WSS_DOUBLE_TLV("Aux Playback Volume", 1,
2132		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
2133		db_scale_5bit_12db_max),
2134WSS_DOUBLE_TLV("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT,
2135		0, 0, 15, 0, db_scale_rec_gain),
2136{
2137	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2138	.name = "Capture Source",
2139	.info = snd_wss_info_mux,
2140	.get = snd_wss_get_mux,
2141	.put = snd_wss_put_mux,
2142},
2143WSS_DOUBLE("Mic Boost (+20dB)", 0,
2144		CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
2145WSS_SINGLE("Loopback Capture Switch", 0,
2146		CS4231_LOOPBACK, 0, 1, 0),
2147WSS_SINGLE_TLV("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1,
2148		db_scale_6bit),
2149WSS_DOUBLE("Line Playback Switch", 0,
2150		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
2151WSS_DOUBLE_TLV("Line Playback Volume", 0,
2152		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1,
2153		db_scale_5bit_12db_max),
2154WSS_SINGLE("Beep Playback Switch", 0,
2155		CS4231_MONO_CTRL, 7, 1, 1),
2156WSS_SINGLE_TLV("Beep Playback Volume", 0,
2157		CS4231_MONO_CTRL, 0, 15, 1,
2158		db_scale_4bit),
2159WSS_SINGLE("Mono Output Playback Switch", 0,
2160		CS4231_MONO_CTRL, 6, 1, 1),
2161WSS_SINGLE("Beep Bypass Playback Switch", 0,
2162		CS4231_MONO_CTRL, 5, 1, 0),
2163};
2164
2165int snd_wss_mixer(struct snd_wss *chip)
2166{
2167	struct snd_card *card;
2168	unsigned int idx;
2169	int err;
2170	int count = ARRAY_SIZE(snd_wss_controls);
2171
2172	if (snd_BUG_ON(!chip || !chip->pcm))
2173		return -EINVAL;
2174
2175	card = chip->card;
2176
2177	strcpy(card->mixername, chip->pcm->name);
2178
2179	/* Use only the first 11 entries on AD1848 */
2180	if (chip->hardware & WSS_HW_AD1848_MASK)
2181		count = 11;
2182	/* There is no loopback on OPTI93X */
2183	else if (chip->hardware == WSS_HW_OPTI93X)
2184		count = 9;
2185
2186	for (idx = 0; idx < count; idx++) {
2187		err = snd_ctl_add(card,
2188				snd_ctl_new1(&snd_wss_controls[idx],
2189					     chip));
2190		if (err < 0)
2191			return err;
2192	}
2193	return 0;
2194}
2195EXPORT_SYMBOL(snd_wss_mixer);
2196
2197const struct snd_pcm_ops *snd_wss_get_pcm_ops(int direction)
2198{
2199	return direction == SNDRV_PCM_STREAM_PLAYBACK ?
2200		&snd_wss_playback_ops : &snd_wss_capture_ops;
2201}
2202EXPORT_SYMBOL(snd_wss_get_pcm_ops);
2203