xref: /openbmc/linux/sound/isa/cs423x/cs4236_lib.c (revision 5f5bac82)
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3  *  Routines for control of CS4235/4236B/4237B/4238B/4239 chips
4  *
5  *  Note:
6  *     -----
7  *
8  *  Bugs:
9  *     -----
10  *
11  *   This program is free software; you can redistribute it and/or modify
12  *   it under the terms of the GNU General Public License as published by
13  *   the Free Software Foundation; either version 2 of the License, or
14  *   (at your option) any later version.
15  *
16  *   This program is distributed in the hope that it will be useful,
17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  *   GNU General Public License for more details.
20  *
21  *   You should have received a copy of the GNU General Public License
22  *   along with this program; if not, write to the Free Software
23  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
24  *
25  */
26 
27 /*
28  *  Indirect control registers (CS4236B+)
29  *
30  *  C0
31  *     D8: WSS reset (all chips)
32  *
33  *  C1 (all chips except CS4236)
34  *     D7-D5: version
35  *     D4-D0: chip id
36  *             11101 - CS4235
37  *             01011 - CS4236B
38  *             01000 - CS4237B
39  *             01001 - CS4238B
40  *             11110 - CS4239
41  *
42  *  C2
43  *     D7-D4: 3D Space (CS4235,CS4237B,CS4238B,CS4239)
44  *     D3-D0: 3D Center (CS4237B); 3D Volume (CS4238B)
45  *
46  *  C3
47  *     D7: 3D Enable (CS4237B)
48  *     D6: 3D Mono Enable (CS4237B)
49  *     D5: 3D Serial Output (CS4237B,CS4238B)
50  *     D4: 3D Enable (CS4235,CS4238B,CS4239)
51  *
52  *  C4
53  *     D7: consumer serial port enable (CS4237B,CS4238B)
54  *     D6: channels status block reset (CS4237B,CS4238B)
55  *     D5: user bit in sub-frame of digital audio data (CS4237B,CS4238B)
56  *     D4: validity bit bit in sub-frame of digital audio data (CS4237B,CS4238B)
57  *
58  *  C5  lower channel status (digital serial data description) (CS4237B,CS4238B)
59  *     D7-D6: first two bits of category code
60  *     D5: lock
61  *     D4-D3: pre-emphasis (0 = none, 1 = 50/15us)
62  *     D2: copy/copyright (0 = copy inhibited)
63  *     D1: 0 = digital audio / 1 = non-digital audio
64  *
65  *  C6  upper channel status (digital serial data description) (CS4237B,CS4238B)
66  *     D7-D6: sample frequency (0 = 44.1kHz)
67  *     D5: generation status (0 = no indication, 1 = original/commercially precaptureed data)
68  *     D4-D0: category code (upper bits)
69  *
70  *  C7  reserved (must write 0)
71  *
72  *  C8  wavetable control
73  *     D7: volume control interrupt enable (CS4235,CS4239)
74  *     D6: hardware volume control format (CS4235,CS4239)
75  *     D3: wavetable serial port enable (all chips)
76  *     D2: DSP serial port switch (all chips)
77  *     D1: disable MCLK (all chips)
78  *     D0: force BRESET low (all chips)
79  *
80  */
81 
82 #include <asm/io.h>
83 #include <linux/delay.h>
84 #include <linux/init.h>
85 #include <linux/time.h>
86 #include <linux/wait.h>
87 #include <sound/core.h>
88 #include <sound/wss.h>
89 #include <sound/asoundef.h>
90 
91 /*
92  *
93  */
94 
95 static unsigned char snd_cs4236_ext_map[18] = {
96 	/* CS4236_LEFT_LINE */		0xff,
97 	/* CS4236_RIGHT_LINE */		0xff,
98 	/* CS4236_LEFT_MIC */		0xdf,
99 	/* CS4236_RIGHT_MIC */		0xdf,
100 	/* CS4236_LEFT_MIX_CTRL */	0xe0 | 0x18,
101 	/* CS4236_RIGHT_MIX_CTRL */	0xe0,
102 	/* CS4236_LEFT_FM */		0xbf,
103 	/* CS4236_RIGHT_FM */		0xbf,
104 	/* CS4236_LEFT_DSP */		0xbf,
105 	/* CS4236_RIGHT_DSP */		0xbf,
106 	/* CS4236_RIGHT_LOOPBACK */	0xbf,
107 	/* CS4236_DAC_MUTE */		0xe0,
108 	/* CS4236_ADC_RATE */		0x01,	/* 48kHz */
109 	/* CS4236_DAC_RATE */		0x01,	/* 48kHz */
110 	/* CS4236_LEFT_MASTER */	0xbf,
111 	/* CS4236_RIGHT_MASTER */	0xbf,
112 	/* CS4236_LEFT_WAVE */		0xbf,
113 	/* CS4236_RIGHT_WAVE */		0xbf
114 };
115 
116 /*
117  *
118  */
119 
120 static void snd_cs4236_ctrl_out(struct snd_wss *chip,
121 				unsigned char reg, unsigned char val)
122 {
123 	outb(reg, chip->cport + 3);
124 	outb(chip->cimage[reg] = val, chip->cport + 4);
125 }
126 
127 static unsigned char snd_cs4236_ctrl_in(struct snd_wss *chip, unsigned char reg)
128 {
129 	outb(reg, chip->cport + 3);
130 	return inb(chip->cport + 4);
131 }
132 
133 /*
134  *  PCM
135  */
136 
137 #define CLOCKS 8
138 
139 static struct snd_ratnum clocks[CLOCKS] = {
140 	{ .num = 16934400, .den_min = 353, .den_max = 353, .den_step = 1 },
141 	{ .num = 16934400, .den_min = 529, .den_max = 529, .den_step = 1 },
142 	{ .num = 16934400, .den_min = 617, .den_max = 617, .den_step = 1 },
143 	{ .num = 16934400, .den_min = 1058, .den_max = 1058, .den_step = 1 },
144 	{ .num = 16934400, .den_min = 1764, .den_max = 1764, .den_step = 1 },
145 	{ .num = 16934400, .den_min = 2117, .den_max = 2117, .den_step = 1 },
146 	{ .num = 16934400, .den_min = 2558, .den_max = 2558, .den_step = 1 },
147 	{ .num = 16934400/16, .den_min = 21, .den_max = 192, .den_step = 1 }
148 };
149 
150 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
151 	.nrats = CLOCKS,
152 	.rats = clocks,
153 };
154 
155 static int snd_cs4236_xrate(struct snd_pcm_runtime *runtime)
156 {
157 	return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
158 					     &hw_constraints_clocks);
159 }
160 
161 static unsigned char divisor_to_rate_register(unsigned int divisor)
162 {
163 	switch (divisor) {
164 	case 353:	return 1;
165 	case 529:	return 2;
166 	case 617:	return 3;
167 	case 1058:	return 4;
168 	case 1764:	return 5;
169 	case 2117:	return 6;
170 	case 2558:	return 7;
171 	default:
172 		if (divisor < 21 || divisor > 192) {
173 			snd_BUG();
174 			return 192;
175 		}
176 		return divisor;
177 	}
178 }
179 
180 static void snd_cs4236_playback_format(struct snd_wss *chip,
181 				       struct snd_pcm_hw_params *params,
182 				       unsigned char pdfr)
183 {
184 	unsigned long flags;
185 	unsigned char rate = divisor_to_rate_register(params->rate_den);
186 
187 	spin_lock_irqsave(&chip->reg_lock, flags);
188 	/* set fast playback format change and clean playback FIFO */
189 	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
190 		    chip->image[CS4231_ALT_FEATURE_1] | 0x10);
191 	snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr & 0xf0);
192 	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
193 		    chip->image[CS4231_ALT_FEATURE_1] & ~0x10);
194 	snd_cs4236_ext_out(chip, CS4236_DAC_RATE, rate);
195 	spin_unlock_irqrestore(&chip->reg_lock, flags);
196 }
197 
198 static void snd_cs4236_capture_format(struct snd_wss *chip,
199 				      struct snd_pcm_hw_params *params,
200 				      unsigned char cdfr)
201 {
202 	unsigned long flags;
203 	unsigned char rate = divisor_to_rate_register(params->rate_den);
204 
205 	spin_lock_irqsave(&chip->reg_lock, flags);
206 	/* set fast capture format change and clean capture FIFO */
207 	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
208 		    chip->image[CS4231_ALT_FEATURE_1] | 0x20);
209 	snd_wss_out(chip, CS4231_REC_FORMAT, cdfr & 0xf0);
210 	snd_wss_out(chip, CS4231_ALT_FEATURE_1,
211 		    chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
212 	snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
213 	spin_unlock_irqrestore(&chip->reg_lock, flags);
214 }
215 
216 #ifdef CONFIG_PM
217 
218 static void snd_cs4236_suspend(struct snd_wss *chip)
219 {
220 	int reg;
221 	unsigned long flags;
222 
223 	spin_lock_irqsave(&chip->reg_lock, flags);
224 	for (reg = 0; reg < 32; reg++)
225 		chip->image[reg] = snd_wss_in(chip, reg);
226 	for (reg = 0; reg < 18; reg++)
227 		chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
228 	for (reg = 2; reg < 9; reg++)
229 		chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
230 	spin_unlock_irqrestore(&chip->reg_lock, flags);
231 }
232 
233 static void snd_cs4236_resume(struct snd_wss *chip)
234 {
235 	int reg;
236 	unsigned long flags;
237 
238 	snd_wss_mce_up(chip);
239 	spin_lock_irqsave(&chip->reg_lock, flags);
240 	for (reg = 0; reg < 32; reg++) {
241 		switch (reg) {
242 		case CS4236_EXT_REG:
243 		case CS4231_VERSION:
244 		case 27:	/* why? CS4235 - master left */
245 		case 29:	/* why? CS4235 - master right */
246 			break;
247 		default:
248 			snd_wss_out(chip, reg, chip->image[reg]);
249 			break;
250 		}
251 	}
252 	for (reg = 0; reg < 18; reg++)
253 		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
254 	for (reg = 2; reg < 9; reg++) {
255 		switch (reg) {
256 		case 7:
257 			break;
258 		default:
259 			snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
260 		}
261 	}
262 	spin_unlock_irqrestore(&chip->reg_lock, flags);
263 	snd_wss_mce_down(chip);
264 }
265 
266 #endif /* CONFIG_PM */
267 
268 int snd_cs4236_create(struct snd_card *card,
269 		      unsigned long port,
270 		      unsigned long cport,
271 		      int irq, int dma1, int dma2,
272 		      unsigned short hardware,
273 		      unsigned short hwshare,
274 		      struct snd_wss **rchip)
275 {
276 	struct snd_wss *chip;
277 	unsigned char ver1, ver2;
278 	unsigned int reg;
279 	int err;
280 
281 	*rchip = NULL;
282 	if (hardware == WSS_HW_DETECT)
283 		hardware = WSS_HW_DETECT3;
284 	if (cport < 0x100) {
285 		snd_printk(KERN_ERR "please, specify control port "
286 			   "for CS4236+ chips\n");
287 		return -ENODEV;
288 	}
289 	err = snd_wss_create(card, port, cport,
290 			     irq, dma1, dma2, hardware, hwshare, &chip);
291 	if (err < 0)
292 		return err;
293 
294 	if (!(chip->hardware & WSS_HW_CS4236B_MASK)) {
295 		snd_printk(KERN_ERR "CS4236+: MODE3 and extended registers "
296 			   "not available, hardware=0x%x\n", chip->hardware);
297 		snd_device_free(card, chip);
298 		return -ENODEV;
299 	}
300 #if 0
301 	{
302 		int idx;
303 		for (idx = 0; idx < 8; idx++)
304 			snd_printk(KERN_DEBUG "CD%i = 0x%x\n",
305 				   idx, inb(chip->cport + idx));
306 		for (idx = 0; idx < 9; idx++)
307 			snd_printk(KERN_DEBUG "C%i = 0x%x\n",
308 				   idx, snd_cs4236_ctrl_in(chip, idx));
309 	}
310 #endif
311 	ver1 = snd_cs4236_ctrl_in(chip, 1);
312 	ver2 = snd_cs4236_ext_in(chip, CS4236_VERSION);
313 	snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n", cport, ver1, ver2);
314 	if (ver1 != ver2) {
315 		snd_printk(KERN_ERR "CS4236+ chip detected, but "
316 			   "control port 0x%lx is not valid\n", cport);
317 		snd_device_free(card, chip);
318 		return -ENODEV;
319 	}
320 	snd_cs4236_ctrl_out(chip, 0, 0x00);
321 	snd_cs4236_ctrl_out(chip, 2, 0xff);
322 	snd_cs4236_ctrl_out(chip, 3, 0x00);
323 	snd_cs4236_ctrl_out(chip, 4, 0x80);
324 	snd_cs4236_ctrl_out(chip, 5, ((IEC958_AES1_CON_PCM_CODER & 3) << 6) | IEC958_AES0_CON_EMPHASIS_NONE);
325 	snd_cs4236_ctrl_out(chip, 6, IEC958_AES1_CON_PCM_CODER >> 2);
326 	snd_cs4236_ctrl_out(chip, 7, 0x00);
327 	/* 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958 output */
328 	/* is working with this setup, other hardware should have */
329 	/* different signal paths and this value should be selectable */
330 	/* in the future */
331 	snd_cs4236_ctrl_out(chip, 8, 0x8c);
332 	chip->rate_constraint = snd_cs4236_xrate;
333 	chip->set_playback_format = snd_cs4236_playback_format;
334 	chip->set_capture_format = snd_cs4236_capture_format;
335 #ifdef CONFIG_PM
336 	chip->suspend = snd_cs4236_suspend;
337 	chip->resume = snd_cs4236_resume;
338 #endif
339 
340 	/* initialize extended registers */
341 	for (reg = 0; reg < sizeof(snd_cs4236_ext_map); reg++)
342 		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), snd_cs4236_ext_map[reg]);
343 
344         /* initialize compatible but more featured registers */
345 	snd_wss_out(chip, CS4231_LEFT_INPUT, 0x40);
346 	snd_wss_out(chip, CS4231_RIGHT_INPUT, 0x40);
347 	snd_wss_out(chip, CS4231_AUX1_LEFT_INPUT, 0xff);
348 	snd_wss_out(chip, CS4231_AUX1_RIGHT_INPUT, 0xff);
349 	snd_wss_out(chip, CS4231_AUX2_LEFT_INPUT, 0xdf);
350 	snd_wss_out(chip, CS4231_AUX2_RIGHT_INPUT, 0xdf);
351 	snd_wss_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
352 	snd_wss_out(chip, CS4231_LEFT_LINE_IN, 0xff);
353 	snd_wss_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
354 	switch (chip->hardware) {
355 	case WSS_HW_CS4235:
356 	case WSS_HW_CS4239:
357 		snd_wss_out(chip, CS4235_LEFT_MASTER, 0xff);
358 		snd_wss_out(chip, CS4235_RIGHT_MASTER, 0xff);
359 		break;
360 	}
361 
362 	*rchip = chip;
363 	return 0;
364 }
365 
366 int snd_cs4236_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm)
367 {
368 	struct snd_pcm *pcm;
369 	int err;
370 
371 	err = snd_wss_pcm(chip, device, &pcm);
372 	if (err < 0)
373 		return err;
374 	pcm->info_flags &= ~SNDRV_PCM_INFO_JOINT_DUPLEX;
375 	if (rpcm)
376 		*rpcm = pcm;
377 	return 0;
378 }
379 
380 /*
381  *  MIXER
382  */
383 
384 #define CS4236_SINGLE(xname, xindex, reg, shift, mask, invert) \
385 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
386   .info = snd_cs4236_info_single, \
387   .get = snd_cs4236_get_single, .put = snd_cs4236_put_single, \
388   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
389 
390 static int snd_cs4236_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
391 {
392 	int mask = (kcontrol->private_value >> 16) & 0xff;
393 
394 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
395 	uinfo->count = 1;
396 	uinfo->value.integer.min = 0;
397 	uinfo->value.integer.max = mask;
398 	return 0;
399 }
400 
401 static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
402 {
403 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
404 	unsigned long flags;
405 	int reg = kcontrol->private_value & 0xff;
406 	int shift = (kcontrol->private_value >> 8) & 0xff;
407 	int mask = (kcontrol->private_value >> 16) & 0xff;
408 	int invert = (kcontrol->private_value >> 24) & 0xff;
409 
410 	spin_lock_irqsave(&chip->reg_lock, flags);
411 	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
412 	spin_unlock_irqrestore(&chip->reg_lock, flags);
413 	if (invert)
414 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
415 	return 0;
416 }
417 
418 static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
419 {
420 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
421 	unsigned long flags;
422 	int reg = kcontrol->private_value & 0xff;
423 	int shift = (kcontrol->private_value >> 8) & 0xff;
424 	int mask = (kcontrol->private_value >> 16) & 0xff;
425 	int invert = (kcontrol->private_value >> 24) & 0xff;
426 	int change;
427 	unsigned short val;
428 
429 	val = (ucontrol->value.integer.value[0] & mask);
430 	if (invert)
431 		val = mask - val;
432 	val <<= shift;
433 	spin_lock_irqsave(&chip->reg_lock, flags);
434 	val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
435 	change = val != chip->eimage[CS4236_REG(reg)];
436 	snd_cs4236_ext_out(chip, reg, val);
437 	spin_unlock_irqrestore(&chip->reg_lock, flags);
438 	return change;
439 }
440 
441 #define CS4236_SINGLEC(xname, xindex, reg, shift, mask, invert) \
442 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
443   .info = snd_cs4236_info_single, \
444   .get = snd_cs4236_get_singlec, .put = snd_cs4236_put_singlec, \
445   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
446 
447 static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
448 {
449 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
450 	unsigned long flags;
451 	int reg = kcontrol->private_value & 0xff;
452 	int shift = (kcontrol->private_value >> 8) & 0xff;
453 	int mask = (kcontrol->private_value >> 16) & 0xff;
454 	int invert = (kcontrol->private_value >> 24) & 0xff;
455 
456 	spin_lock_irqsave(&chip->reg_lock, flags);
457 	ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
458 	spin_unlock_irqrestore(&chip->reg_lock, flags);
459 	if (invert)
460 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
461 	return 0;
462 }
463 
464 static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
465 {
466 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
467 	unsigned long flags;
468 	int reg = kcontrol->private_value & 0xff;
469 	int shift = (kcontrol->private_value >> 8) & 0xff;
470 	int mask = (kcontrol->private_value >> 16) & 0xff;
471 	int invert = (kcontrol->private_value >> 24) & 0xff;
472 	int change;
473 	unsigned short val;
474 
475 	val = (ucontrol->value.integer.value[0] & mask);
476 	if (invert)
477 		val = mask - val;
478 	val <<= shift;
479 	spin_lock_irqsave(&chip->reg_lock, flags);
480 	val = (chip->cimage[reg] & ~(mask << shift)) | val;
481 	change = val != chip->cimage[reg];
482 	snd_cs4236_ctrl_out(chip, reg, val);
483 	spin_unlock_irqrestore(&chip->reg_lock, flags);
484 	return change;
485 }
486 
487 #define CS4236_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
488 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
489   .info = snd_cs4236_info_double, \
490   .get = snd_cs4236_get_double, .put = snd_cs4236_put_double, \
491   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
492 
493 static int snd_cs4236_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
494 {
495 	int mask = (kcontrol->private_value >> 24) & 0xff;
496 
497 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
498 	uinfo->count = 2;
499 	uinfo->value.integer.min = 0;
500 	uinfo->value.integer.max = mask;
501 	return 0;
502 }
503 
504 static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
505 {
506 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
507 	unsigned long flags;
508 	int left_reg = kcontrol->private_value & 0xff;
509 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
510 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
511 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
512 	int mask = (kcontrol->private_value >> 24) & 0xff;
513 	int invert = (kcontrol->private_value >> 22) & 1;
514 
515 	spin_lock_irqsave(&chip->reg_lock, flags);
516 	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
517 	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
518 	spin_unlock_irqrestore(&chip->reg_lock, flags);
519 	if (invert) {
520 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
521 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
522 	}
523 	return 0;
524 }
525 
526 static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
527 {
528 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
529 	unsigned long flags;
530 	int left_reg = kcontrol->private_value & 0xff;
531 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
532 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
533 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
534 	int mask = (kcontrol->private_value >> 24) & 0xff;
535 	int invert = (kcontrol->private_value >> 22) & 1;
536 	int change;
537 	unsigned short val1, val2;
538 
539 	val1 = ucontrol->value.integer.value[0] & mask;
540 	val2 = ucontrol->value.integer.value[1] & mask;
541 	if (invert) {
542 		val1 = mask - val1;
543 		val2 = mask - val2;
544 	}
545 	val1 <<= shift_left;
546 	val2 <<= shift_right;
547 	spin_lock_irqsave(&chip->reg_lock, flags);
548 	if (left_reg != right_reg) {
549 		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
550 		val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
551 		change = val1 != chip->eimage[CS4236_REG(left_reg)] || val2 != chip->eimage[CS4236_REG(right_reg)];
552 		snd_cs4236_ext_out(chip, left_reg, val1);
553 		snd_cs4236_ext_out(chip, right_reg, val2);
554 	} else {
555 		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
556 		change = val1 != chip->eimage[CS4236_REG(left_reg)];
557 		snd_cs4236_ext_out(chip, left_reg, val1);
558 	}
559 	spin_unlock_irqrestore(&chip->reg_lock, flags);
560 	return change;
561 }
562 
563 #define CS4236_DOUBLE1(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
564 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
565   .info = snd_cs4236_info_double, \
566   .get = snd_cs4236_get_double1, .put = snd_cs4236_put_double1, \
567   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
568 
569 static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
570 {
571 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
572 	unsigned long flags;
573 	int left_reg = kcontrol->private_value & 0xff;
574 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
575 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
576 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
577 	int mask = (kcontrol->private_value >> 24) & 0xff;
578 	int invert = (kcontrol->private_value >> 22) & 1;
579 
580 	spin_lock_irqsave(&chip->reg_lock, flags);
581 	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
582 	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
583 	spin_unlock_irqrestore(&chip->reg_lock, flags);
584 	if (invert) {
585 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
586 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
587 	}
588 	return 0;
589 }
590 
591 static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
592 {
593 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
594 	unsigned long flags;
595 	int left_reg = kcontrol->private_value & 0xff;
596 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
597 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
598 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
599 	int mask = (kcontrol->private_value >> 24) & 0xff;
600 	int invert = (kcontrol->private_value >> 22) & 1;
601 	int change;
602 	unsigned short val1, val2;
603 
604 	val1 = ucontrol->value.integer.value[0] & mask;
605 	val2 = ucontrol->value.integer.value[1] & mask;
606 	if (invert) {
607 		val1 = mask - val1;
608 		val2 = mask - val2;
609 	}
610 	val1 <<= shift_left;
611 	val2 <<= shift_right;
612 	spin_lock_irqsave(&chip->reg_lock, flags);
613 	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
614 	val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
615 	change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
616 	snd_wss_out(chip, left_reg, val1);
617 	snd_cs4236_ext_out(chip, right_reg, val2);
618 	spin_unlock_irqrestore(&chip->reg_lock, flags);
619 	return change;
620 }
621 
622 #define CS4236_MASTER_DIGITAL(xname, xindex) \
623 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
624   .info = snd_cs4236_info_double, \
625   .get = snd_cs4236_get_master_digital, .put = snd_cs4236_put_master_digital, \
626   .private_value = 71 << 24 }
627 
628 static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
629 {
630 	return (vol < 64) ? 63 - vol : 64 + (71 - vol);
631 }
632 
633 static int snd_cs4236_get_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
634 {
635 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
636 	unsigned long flags;
637 
638 	spin_lock_irqsave(&chip->reg_lock, flags);
639 	ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
640 	ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
641 	spin_unlock_irqrestore(&chip->reg_lock, flags);
642 	return 0;
643 }
644 
645 static int snd_cs4236_put_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
646 {
647 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
648 	unsigned long flags;
649 	int change;
650 	unsigned short val1, val2;
651 
652 	val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
653 	val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
654 	spin_lock_irqsave(&chip->reg_lock, flags);
655 	val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
656 	val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
657 	change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
658 	snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
659 	snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val2);
660 	spin_unlock_irqrestore(&chip->reg_lock, flags);
661 	return change;
662 }
663 
664 #define CS4235_OUTPUT_ACCU(xname, xindex) \
665 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
666   .info = snd_cs4236_info_double, \
667   .get = snd_cs4235_get_output_accu, .put = snd_cs4235_put_output_accu, \
668   .private_value = 3 << 24 }
669 
670 static inline int snd_cs4235_mixer_output_accu_get_volume(int vol)
671 {
672 	switch ((vol >> 5) & 3) {
673 	case 0: return 1;
674 	case 1: return 3;
675 	case 2: return 2;
676 	case 3: return 0;
677  	}
678 	return 3;
679 }
680 
681 static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
682 {
683 	switch (vol & 3) {
684 	case 0: return 3 << 5;
685 	case 1: return 0 << 5;
686 	case 2: return 2 << 5;
687 	case 3: return 1 << 5;
688 	}
689 	return 1 << 5;
690 }
691 
692 static int snd_cs4235_get_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
693 {
694 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
695 	unsigned long flags;
696 
697 	spin_lock_irqsave(&chip->reg_lock, flags);
698 	ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
699 	ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
700 	spin_unlock_irqrestore(&chip->reg_lock, flags);
701 	return 0;
702 }
703 
704 static int snd_cs4235_put_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
705 {
706 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
707 	unsigned long flags;
708 	int change;
709 	unsigned short val1, val2;
710 
711 	val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
712 	val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
713 	spin_lock_irqsave(&chip->reg_lock, flags);
714 	val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
715 	val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
716 	change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
717 	snd_wss_out(chip, CS4235_LEFT_MASTER, val1);
718 	snd_wss_out(chip, CS4235_RIGHT_MASTER, val2);
719 	spin_unlock_irqrestore(&chip->reg_lock, flags);
720 	return change;
721 }
722 
723 static struct snd_kcontrol_new snd_cs4236_controls[] = {
724 
725 CS4236_DOUBLE("Master Digital Playback Switch", 0,
726 		CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
727 CS4236_DOUBLE("Master Digital Capture Switch", 0,
728 		CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
729 CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
730 
731 CS4236_DOUBLE("Capture Boost Volume", 0,
732 		CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
733 
734 WSS_DOUBLE("PCM Playback Switch", 0,
735 		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
736 WSS_DOUBLE("PCM Playback Volume", 0,
737 		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
738 
739 CS4236_DOUBLE("DSP Playback Switch", 0,
740 		CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
741 CS4236_DOUBLE("DSP Playback Volume", 0,
742 		CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 0, 0, 63, 1),
743 
744 CS4236_DOUBLE("FM Playback Switch", 0,
745 		CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
746 CS4236_DOUBLE("FM Playback Volume", 0,
747 		CS4236_LEFT_FM, CS4236_RIGHT_FM, 0, 0, 63, 1),
748 
749 CS4236_DOUBLE("Wavetable Playback Switch", 0,
750 		CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
751 CS4236_DOUBLE("Wavetable Playback Volume", 0,
752 		CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 0, 0, 63, 1),
753 
754 WSS_DOUBLE("Synth Playback Switch", 0,
755 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
756 WSS_DOUBLE("Synth Volume", 0,
757 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
758 WSS_DOUBLE("Synth Capture Switch", 0,
759 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
760 WSS_DOUBLE("Synth Capture Bypass", 0,
761 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 5, 5, 1, 1),
762 
763 CS4236_DOUBLE("Mic Playback Switch", 0,
764 		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
765 CS4236_DOUBLE("Mic Capture Switch", 0,
766 		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
767 CS4236_DOUBLE("Mic Volume", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 0, 0, 31, 1),
768 CS4236_DOUBLE("Mic Playback Boost", 0,
769 		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 5, 5, 1, 0),
770 
771 WSS_DOUBLE("Line Playback Switch", 0,
772 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
773 WSS_DOUBLE("Line Volume", 0,
774 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
775 WSS_DOUBLE("Line Capture Switch", 0,
776 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
777 WSS_DOUBLE("Line Capture Bypass", 0,
778 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 5, 5, 1, 1),
779 
780 WSS_DOUBLE("CD Playback Switch", 0,
781 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
782 WSS_DOUBLE("CD Volume", 0,
783 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
784 WSS_DOUBLE("CD Capture Switch", 0,
785 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
786 
787 CS4236_DOUBLE1("Mono Output Playback Switch", 0,
788 		CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
789 CS4236_DOUBLE1("Mono Playback Switch", 0,
790 		CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
791 WSS_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
792 WSS_SINGLE("Mono Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
793 
794 WSS_DOUBLE("Capture Volume", 0,
795 		CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
796 WSS_DOUBLE("Analog Loopback Capture Switch", 0,
797 		CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
798 
799 WSS_SINGLE("Digital Loopback Playback Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
800 CS4236_DOUBLE1("Digital Loopback Playback Volume", 0,
801 		CS4231_LOOPBACK, CS4236_RIGHT_LOOPBACK, 2, 0, 63, 1)
802 };
803 
804 static struct snd_kcontrol_new snd_cs4235_controls[] = {
805 
806 WSS_DOUBLE("Master Switch", 0,
807 		CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 7, 7, 1, 1),
808 WSS_DOUBLE("Master Volume", 0,
809 		CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 0, 0, 31, 1),
810 
811 CS4235_OUTPUT_ACCU("Playback Volume", 0),
812 
813 CS4236_DOUBLE("Master Digital Playback Switch", 0,
814 		CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
815 CS4236_DOUBLE("Master Digital Capture Switch", 0,
816 		CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
817 CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
818 
819 WSS_DOUBLE("Master Digital Playback Switch", 1,
820 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
821 WSS_DOUBLE("Master Digital Capture Switch", 1,
822 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
823 WSS_DOUBLE("Master Digital Volume", 1,
824 		CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
825 
826 CS4236_DOUBLE("Capture Volume", 0,
827 		CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
828 
829 WSS_DOUBLE("PCM Switch", 0,
830 		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
831 WSS_DOUBLE("PCM Volume", 0,
832 		CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
833 
834 CS4236_DOUBLE("DSP Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
835 
836 CS4236_DOUBLE("FM Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
837 
838 CS4236_DOUBLE("Wavetable Switch", 0,
839 		CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
840 
841 CS4236_DOUBLE("Mic Capture Switch", 0,
842 		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
843 CS4236_DOUBLE("Mic Playback Switch", 0,
844 		CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
845 CS4236_SINGLE("Mic Volume", 0, CS4236_LEFT_MIC, 0, 31, 1),
846 CS4236_SINGLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, 5, 1, 0),
847 
848 WSS_DOUBLE("Aux Playback Switch", 0,
849 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
850 WSS_DOUBLE("Aux Capture Switch", 0,
851 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
852 WSS_DOUBLE("Aux Volume", 0,
853 		CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
854 
855 WSS_DOUBLE("Aux Playback Switch", 1,
856 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
857 WSS_DOUBLE("Aux Capture Switch", 1,
858 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
859 WSS_DOUBLE("Aux Volume", 1,
860 		CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
861 
862 CS4236_DOUBLE1("Master Mono Switch", 0,
863 		CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
864 
865 CS4236_DOUBLE1("Mono Switch", 0,
866 		CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
867 WSS_SINGLE("Mono Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
868 
869 WSS_DOUBLE("Analog Loopback Switch", 0,
870 		CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
871 };
872 
873 #define CS4236_IEC958_ENABLE(xname, xindex) \
874 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
875   .info = snd_cs4236_info_single, \
876   .get = snd_cs4236_get_iec958_switch, .put = snd_cs4236_put_iec958_switch, \
877   .private_value = 1 << 16 }
878 
879 static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
880 {
881 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
882 	unsigned long flags;
883 
884 	spin_lock_irqsave(&chip->reg_lock, flags);
885 	ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
886 #if 0
887 	printk(KERN_DEBUG "get valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, "
888 	       "C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
889 			snd_wss_in(chip, CS4231_ALT_FEATURE_1),
890 			snd_cs4236_ctrl_in(chip, 3),
891 			snd_cs4236_ctrl_in(chip, 4),
892 			snd_cs4236_ctrl_in(chip, 5),
893 			snd_cs4236_ctrl_in(chip, 6),
894 			snd_cs4236_ctrl_in(chip, 8));
895 #endif
896 	spin_unlock_irqrestore(&chip->reg_lock, flags);
897 	return 0;
898 }
899 
900 static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
901 {
902 	struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
903 	unsigned long flags;
904 	int change;
905 	unsigned short enable, val;
906 
907 	enable = ucontrol->value.integer.value[0] & 1;
908 
909 	mutex_lock(&chip->mce_mutex);
910 	snd_wss_mce_up(chip);
911 	spin_lock_irqsave(&chip->reg_lock, flags);
912 	val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
913 	change = val != chip->image[CS4231_ALT_FEATURE_1];
914 	snd_wss_out(chip, CS4231_ALT_FEATURE_1, val);
915 	val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
916 	snd_cs4236_ctrl_out(chip, 4, val);
917 	udelay(100);
918 	val &= ~0x40;
919 	snd_cs4236_ctrl_out(chip, 4, val);
920 	spin_unlock_irqrestore(&chip->reg_lock, flags);
921 	snd_wss_mce_down(chip);
922 	mutex_unlock(&chip->mce_mutex);
923 
924 #if 0
925 	printk(KERN_DEBUG "set valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, "
926 	       "C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
927 			snd_wss_in(chip, CS4231_ALT_FEATURE_1),
928 			snd_cs4236_ctrl_in(chip, 3),
929 			snd_cs4236_ctrl_in(chip, 4),
930 			snd_cs4236_ctrl_in(chip, 5),
931 			snd_cs4236_ctrl_in(chip, 6),
932 			snd_cs4236_ctrl_in(chip, 8));
933 #endif
934 	return change;
935 }
936 
937 static struct snd_kcontrol_new snd_cs4236_iec958_controls[] = {
938 CS4236_IEC958_ENABLE("IEC958 Output Enable", 0),
939 CS4236_SINGLEC("IEC958 Output Validity", 0, 4, 4, 1, 0),
940 CS4236_SINGLEC("IEC958 Output User", 0, 4, 5, 1, 0),
941 CS4236_SINGLEC("IEC958 Output CSBR", 0, 4, 6, 1, 0),
942 CS4236_SINGLEC("IEC958 Output Channel Status Low", 0, 5, 1, 127, 0),
943 CS4236_SINGLEC("IEC958 Output Channel Status High", 0, 6, 0, 255, 0)
944 };
945 
946 static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4235[] = {
947 CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
948 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1)
949 };
950 
951 static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4237[] = {
952 CS4236_SINGLEC("3D Control - Switch", 0, 3, 7, 1, 0),
953 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
954 CS4236_SINGLEC("3D Control - Center", 0, 2, 0, 15, 1),
955 CS4236_SINGLEC("3D Control - Mono", 0, 3, 6, 1, 0),
956 CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
957 };
958 
959 static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4238[] = {
960 CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
961 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
962 CS4236_SINGLEC("3D Control - Volume", 0, 2, 0, 15, 1),
963 CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
964 };
965 
966 int snd_cs4236_mixer(struct snd_wss *chip)
967 {
968 	struct snd_card *card;
969 	unsigned int idx, count;
970 	int err;
971 	struct snd_kcontrol_new *kcontrol;
972 
973 	if (snd_BUG_ON(!chip || !chip->card))
974 		return -EINVAL;
975 	card = chip->card;
976 	strcpy(card->mixername, snd_wss_chip_id(chip));
977 
978 	if (chip->hardware == WSS_HW_CS4235 ||
979 	    chip->hardware == WSS_HW_CS4239) {
980 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4235_controls); idx++) {
981 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4235_controls[idx], chip))) < 0)
982 				return err;
983 		}
984 	} else {
985 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_controls); idx++) {
986 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_controls[idx], chip))) < 0)
987 				return err;
988 		}
989 	}
990 	switch (chip->hardware) {
991 	case WSS_HW_CS4235:
992 	case WSS_HW_CS4239:
993 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4235);
994 		kcontrol = snd_cs4236_3d_controls_cs4235;
995 		break;
996 	case WSS_HW_CS4237B:
997 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4237);
998 		kcontrol = snd_cs4236_3d_controls_cs4237;
999 		break;
1000 	case WSS_HW_CS4238B:
1001 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4238);
1002 		kcontrol = snd_cs4236_3d_controls_cs4238;
1003 		break;
1004 	default:
1005 		count = 0;
1006 		kcontrol = NULL;
1007 	}
1008 	for (idx = 0; idx < count; idx++, kcontrol++) {
1009 		if ((err = snd_ctl_add(card, snd_ctl_new1(kcontrol, chip))) < 0)
1010 			return err;
1011 	}
1012 	if (chip->hardware == WSS_HW_CS4237B ||
1013 	    chip->hardware == WSS_HW_CS4238B) {
1014 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_iec958_controls); idx++) {
1015 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_iec958_controls[idx], chip))) < 0)
1016 				return err;
1017 		}
1018 	}
1019 	return 0;
1020 }
1021