xref: /openbmc/linux/sound/isa/cs423x/cs4236_lib.c (revision 64c70b1c)
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
83 #include <asm/io.h>
84 #include <linux/delay.h>
85 #include <linux/init.h>
86 #include <linux/time.h>
87 #include <linux/wait.h>
88 #include <sound/core.h>
89 #include <sound/cs4231.h>
90 #include <sound/asoundef.h>
91 
92 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
93 MODULE_DESCRIPTION("Routines for control of CS4235/4236B/4237B/4238B/4239 chips");
94 MODULE_LICENSE("GPL");
95 
96 /*
97  *
98  */
99 
100 static unsigned char snd_cs4236_ext_map[18] = {
101 	/* CS4236_LEFT_LINE */		0xff,
102 	/* CS4236_RIGHT_LINE */		0xff,
103 	/* CS4236_LEFT_MIC */		0xdf,
104 	/* CS4236_RIGHT_MIC */		0xdf,
105 	/* CS4236_LEFT_MIX_CTRL */	0xe0 | 0x18,
106 	/* CS4236_RIGHT_MIX_CTRL */	0xe0,
107 	/* CS4236_LEFT_FM */		0xbf,
108 	/* CS4236_RIGHT_FM */		0xbf,
109 	/* CS4236_LEFT_DSP */		0xbf,
110 	/* CS4236_RIGHT_DSP */		0xbf,
111 	/* CS4236_RIGHT_LOOPBACK */	0xbf,
112 	/* CS4236_DAC_MUTE */		0xe0,
113 	/* CS4236_ADC_RATE */		0x01,	/* 48kHz */
114 	/* CS4236_DAC_RATE */		0x01,	/* 48kHz */
115 	/* CS4236_LEFT_MASTER */	0xbf,
116 	/* CS4236_RIGHT_MASTER */	0xbf,
117 	/* CS4236_LEFT_WAVE */		0xbf,
118 	/* CS4236_RIGHT_WAVE */		0xbf
119 };
120 
121 /*
122  *
123  */
124 
125 static void snd_cs4236_ctrl_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val)
126 {
127 	outb(reg, chip->cport + 3);
128 	outb(chip->cimage[reg] = val, chip->cport + 4);
129 }
130 
131 static unsigned char snd_cs4236_ctrl_in(struct snd_cs4231 *chip, unsigned char reg)
132 {
133 	outb(reg, chip->cport + 3);
134 	return inb(chip->cport + 4);
135 }
136 
137 /*
138  *  PCM
139  */
140 
141 #define CLOCKS 8
142 
143 static struct snd_ratnum clocks[CLOCKS] = {
144 	{ .num = 16934400, .den_min = 353, .den_max = 353, .den_step = 1 },
145 	{ .num = 16934400, .den_min = 529, .den_max = 529, .den_step = 1 },
146 	{ .num = 16934400, .den_min = 617, .den_max = 617, .den_step = 1 },
147 	{ .num = 16934400, .den_min = 1058, .den_max = 1058, .den_step = 1 },
148 	{ .num = 16934400, .den_min = 1764, .den_max = 1764, .den_step = 1 },
149 	{ .num = 16934400, .den_min = 2117, .den_max = 2117, .den_step = 1 },
150 	{ .num = 16934400, .den_min = 2558, .den_max = 2558, .den_step = 1 },
151 	{ .num = 16934400/16, .den_min = 21, .den_max = 192, .den_step = 1 }
152 };
153 
154 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
155 	.nrats = CLOCKS,
156 	.rats = clocks,
157 };
158 
159 static int snd_cs4236_xrate(struct snd_pcm_runtime *runtime)
160 {
161 	return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
162 					     &hw_constraints_clocks);
163 }
164 
165 static unsigned char divisor_to_rate_register(unsigned int divisor)
166 {
167 	switch (divisor) {
168 	case 353:	return 1;
169 	case 529:	return 2;
170 	case 617:	return 3;
171 	case 1058:	return 4;
172 	case 1764:	return 5;
173 	case 2117:	return 6;
174 	case 2558:	return 7;
175 	default:
176 		if (divisor < 21 || divisor > 192) {
177 			snd_BUG();
178 			return 192;
179 		}
180 		return divisor;
181 	}
182 }
183 
184 static void snd_cs4236_playback_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params, unsigned char pdfr)
185 {
186 	unsigned long flags;
187 	unsigned char rate = divisor_to_rate_register(params->rate_den);
188 
189 	spin_lock_irqsave(&chip->reg_lock, flags);
190 	/* set fast playback format change and clean playback FIFO */
191 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10);
192 	snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, pdfr & 0xf0);
193 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, 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_cs4231 *chip, struct snd_pcm_hw_params *params, unsigned char cdfr)
199 {
200 	unsigned long flags;
201 	unsigned char rate = divisor_to_rate_register(params->rate_den);
202 
203 	spin_lock_irqsave(&chip->reg_lock, flags);
204 	/* set fast capture format change and clean capture FIFO */
205 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20);
206 	snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr & 0xf0);
207 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
208 	snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
209 	spin_unlock_irqrestore(&chip->reg_lock, flags);
210 }
211 
212 #ifdef CONFIG_PM
213 
214 static void snd_cs4236_suspend(struct snd_cs4231 *chip)
215 {
216 	int reg;
217 	unsigned long flags;
218 
219 	spin_lock_irqsave(&chip->reg_lock, flags);
220 	for (reg = 0; reg < 32; reg++)
221 		chip->image[reg] = snd_cs4231_in(chip, reg);
222 	for (reg = 0; reg < 18; reg++)
223 		chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
224 	for (reg = 2; reg < 9; reg++)
225 		chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
226 	spin_unlock_irqrestore(&chip->reg_lock, flags);
227 }
228 
229 static void snd_cs4236_resume(struct snd_cs4231 *chip)
230 {
231 	int reg;
232 	unsigned long flags;
233 
234 	snd_cs4231_mce_up(chip);
235 	spin_lock_irqsave(&chip->reg_lock, flags);
236 	for (reg = 0; reg < 32; reg++) {
237 		switch (reg) {
238 		case CS4236_EXT_REG:
239 		case CS4231_VERSION:
240 		case 27:	/* why? CS4235 - master left */
241 		case 29:	/* why? CS4235 - master right */
242 			break;
243 		default:
244 			snd_cs4231_out(chip, reg, chip->image[reg]);
245 			break;
246 		}
247 	}
248 	for (reg = 0; reg < 18; reg++)
249 		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
250 	for (reg = 2; reg < 9; reg++) {
251 		switch (reg) {
252 		case 7:
253 			break;
254 		default:
255 			snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
256 		}
257 	}
258 	spin_unlock_irqrestore(&chip->reg_lock, flags);
259 	snd_cs4231_mce_down(chip);
260 }
261 
262 #endif /* CONFIG_PM */
263 
264 int snd_cs4236_create(struct snd_card *card,
265 		      unsigned long port,
266 		      unsigned long cport,
267 		      int irq, int dma1, int dma2,
268 		      unsigned short hardware,
269 		      unsigned short hwshare,
270 		      struct snd_cs4231 ** rchip)
271 {
272 	struct snd_cs4231 *chip;
273 	unsigned char ver1, ver2;
274 	unsigned int reg;
275 	int err;
276 
277 	*rchip = NULL;
278 	if (hardware == CS4231_HW_DETECT)
279 		hardware = CS4231_HW_DETECT3;
280 	if (cport < 0x100) {
281 		snd_printk("please, specify control port for CS4236+ chips\n");
282 		return -ENODEV;
283 	}
284 	if ((err = snd_cs4231_create(card, port, cport, irq, dma1, dma2, hardware, hwshare, &chip)) < 0)
285 		return err;
286 
287 	if (!(chip->hardware & CS4231_HW_CS4236B_MASK)) {
288 	        snd_printk("CS4236+: MODE3 and extended registers not available, hardware=0x%x\n",chip->hardware);
289 		snd_device_free(card, chip);
290 		return -ENODEV;
291 	}
292 #if 0
293 	{
294 		int idx;
295 		for (idx = 0; idx < 8; idx++)
296 			snd_printk("CD%i = 0x%x\n", idx, inb(chip->cport + idx));
297 		for (idx = 0; idx < 9; idx++)
298 			snd_printk("C%i = 0x%x\n", idx, snd_cs4236_ctrl_in(chip, idx));
299 	}
300 #endif
301 	ver1 = snd_cs4236_ctrl_in(chip, 1);
302 	ver2 = snd_cs4236_ext_in(chip, CS4236_VERSION);
303 	snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n", cport, ver1, ver2);
304 	if (ver1 != ver2) {
305 		snd_printk("CS4236+ chip detected, but control port 0x%lx is not valid\n", cport);
306 		snd_device_free(card, chip);
307 		return -ENODEV;
308 	}
309 	snd_cs4236_ctrl_out(chip, 0, 0x00);
310 	snd_cs4236_ctrl_out(chip, 2, 0xff);
311 	snd_cs4236_ctrl_out(chip, 3, 0x00);
312 	snd_cs4236_ctrl_out(chip, 4, 0x80);
313 	snd_cs4236_ctrl_out(chip, 5, ((IEC958_AES1_CON_PCM_CODER & 3) << 6) | IEC958_AES0_CON_EMPHASIS_NONE);
314 	snd_cs4236_ctrl_out(chip, 6, IEC958_AES1_CON_PCM_CODER >> 2);
315 	snd_cs4236_ctrl_out(chip, 7, 0x00);
316 	/* 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958 output */
317 	/* is working with this setup, other hardware should have */
318 	/* different signal paths and this value should be selectable */
319 	/* in the future */
320 	snd_cs4236_ctrl_out(chip, 8, 0x8c);
321 	chip->rate_constraint = snd_cs4236_xrate;
322 	chip->set_playback_format = snd_cs4236_playback_format;
323 	chip->set_capture_format = snd_cs4236_capture_format;
324 #ifdef CONFIG_PM
325 	chip->suspend = snd_cs4236_suspend;
326 	chip->resume = snd_cs4236_resume;
327 #endif
328 
329 	/* initialize extended registers */
330 	for (reg = 0; reg < sizeof(snd_cs4236_ext_map); reg++)
331 		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), snd_cs4236_ext_map[reg]);
332 
333         /* initialize compatible but more featured registers */
334 	snd_cs4231_out(chip, CS4231_LEFT_INPUT, 0x40);
335 	snd_cs4231_out(chip, CS4231_RIGHT_INPUT, 0x40);
336 	snd_cs4231_out(chip, CS4231_AUX1_LEFT_INPUT, 0xff);
337 	snd_cs4231_out(chip, CS4231_AUX1_RIGHT_INPUT, 0xff);
338 	snd_cs4231_out(chip, CS4231_AUX2_LEFT_INPUT, 0xdf);
339 	snd_cs4231_out(chip, CS4231_AUX2_RIGHT_INPUT, 0xdf);
340 	snd_cs4231_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
341 	snd_cs4231_out(chip, CS4231_LEFT_LINE_IN, 0xff);
342 	snd_cs4231_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
343 	switch (chip->hardware) {
344 	case CS4231_HW_CS4235:
345 	case CS4231_HW_CS4239:
346 		snd_cs4231_out(chip, CS4235_LEFT_MASTER, 0xff);
347 		snd_cs4231_out(chip, CS4235_RIGHT_MASTER, 0xff);
348 		break;
349 	}
350 
351 	*rchip = chip;
352 	return 0;
353 }
354 
355 int snd_cs4236_pcm(struct snd_cs4231 *chip, int device, struct snd_pcm **rpcm)
356 {
357 	struct snd_pcm *pcm;
358 	int err;
359 
360 	if ((err = snd_cs4231_pcm(chip, device, &pcm)) < 0)
361 		return err;
362 	pcm->info_flags &= ~SNDRV_PCM_INFO_JOINT_DUPLEX;
363 	if (rpcm)
364 		*rpcm = pcm;
365 	return 0;
366 }
367 
368 /*
369  *  MIXER
370  */
371 
372 #define CS4236_SINGLE(xname, xindex, reg, shift, mask, invert) \
373 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
374   .info = snd_cs4236_info_single, \
375   .get = snd_cs4236_get_single, .put = snd_cs4236_put_single, \
376   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
377 
378 static int snd_cs4236_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
379 {
380 	int mask = (kcontrol->private_value >> 16) & 0xff;
381 
382 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
383 	uinfo->count = 1;
384 	uinfo->value.integer.min = 0;
385 	uinfo->value.integer.max = mask;
386 	return 0;
387 }
388 
389 static int snd_cs4236_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
390 {
391 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
392 	unsigned long flags;
393 	int reg = kcontrol->private_value & 0xff;
394 	int shift = (kcontrol->private_value >> 8) & 0xff;
395 	int mask = (kcontrol->private_value >> 16) & 0xff;
396 	int invert = (kcontrol->private_value >> 24) & 0xff;
397 
398 	spin_lock_irqsave(&chip->reg_lock, flags);
399 	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
400 	spin_unlock_irqrestore(&chip->reg_lock, flags);
401 	if (invert)
402 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
403 	return 0;
404 }
405 
406 static int snd_cs4236_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
407 {
408 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
409 	unsigned long flags;
410 	int reg = kcontrol->private_value & 0xff;
411 	int shift = (kcontrol->private_value >> 8) & 0xff;
412 	int mask = (kcontrol->private_value >> 16) & 0xff;
413 	int invert = (kcontrol->private_value >> 24) & 0xff;
414 	int change;
415 	unsigned short val;
416 
417 	val = (ucontrol->value.integer.value[0] & mask);
418 	if (invert)
419 		val = mask - val;
420 	val <<= shift;
421 	spin_lock_irqsave(&chip->reg_lock, flags);
422 	val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
423 	change = val != chip->eimage[CS4236_REG(reg)];
424 	snd_cs4236_ext_out(chip, reg, val);
425 	spin_unlock_irqrestore(&chip->reg_lock, flags);
426 	return change;
427 }
428 
429 #define CS4236_SINGLEC(xname, xindex, reg, shift, mask, invert) \
430 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
431   .info = snd_cs4236_info_single, \
432   .get = snd_cs4236_get_singlec, .put = snd_cs4236_put_singlec, \
433   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
434 
435 static int snd_cs4236_get_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
436 {
437 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
438 	unsigned long flags;
439 	int reg = kcontrol->private_value & 0xff;
440 	int shift = (kcontrol->private_value >> 8) & 0xff;
441 	int mask = (kcontrol->private_value >> 16) & 0xff;
442 	int invert = (kcontrol->private_value >> 24) & 0xff;
443 
444 	spin_lock_irqsave(&chip->reg_lock, flags);
445 	ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
446 	spin_unlock_irqrestore(&chip->reg_lock, flags);
447 	if (invert)
448 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
449 	return 0;
450 }
451 
452 static int snd_cs4236_put_singlec(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
453 {
454 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
455 	unsigned long flags;
456 	int reg = kcontrol->private_value & 0xff;
457 	int shift = (kcontrol->private_value >> 8) & 0xff;
458 	int mask = (kcontrol->private_value >> 16) & 0xff;
459 	int invert = (kcontrol->private_value >> 24) & 0xff;
460 	int change;
461 	unsigned short val;
462 
463 	val = (ucontrol->value.integer.value[0] & mask);
464 	if (invert)
465 		val = mask - val;
466 	val <<= shift;
467 	spin_lock_irqsave(&chip->reg_lock, flags);
468 	val = (chip->cimage[reg] & ~(mask << shift)) | val;
469 	change = val != chip->cimage[reg];
470 	snd_cs4236_ctrl_out(chip, reg, val);
471 	spin_unlock_irqrestore(&chip->reg_lock, flags);
472 	return change;
473 }
474 
475 #define CS4236_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
476 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
477   .info = snd_cs4236_info_double, \
478   .get = snd_cs4236_get_double, .put = snd_cs4236_put_double, \
479   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
480 
481 static int snd_cs4236_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
482 {
483 	int mask = (kcontrol->private_value >> 24) & 0xff;
484 
485 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
486 	uinfo->count = 2;
487 	uinfo->value.integer.min = 0;
488 	uinfo->value.integer.max = mask;
489 	return 0;
490 }
491 
492 static int snd_cs4236_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
493 {
494 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
495 	unsigned long flags;
496 	int left_reg = kcontrol->private_value & 0xff;
497 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
498 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
499 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
500 	int mask = (kcontrol->private_value >> 24) & 0xff;
501 	int invert = (kcontrol->private_value >> 22) & 1;
502 
503 	spin_lock_irqsave(&chip->reg_lock, flags);
504 	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
505 	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
506 	spin_unlock_irqrestore(&chip->reg_lock, flags);
507 	if (invert) {
508 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
509 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
510 	}
511 	return 0;
512 }
513 
514 static int snd_cs4236_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
515 {
516 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
517 	unsigned long flags;
518 	int left_reg = kcontrol->private_value & 0xff;
519 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
520 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
521 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
522 	int mask = (kcontrol->private_value >> 24) & 0xff;
523 	int invert = (kcontrol->private_value >> 22) & 1;
524 	int change;
525 	unsigned short val1, val2;
526 
527 	val1 = ucontrol->value.integer.value[0] & mask;
528 	val2 = ucontrol->value.integer.value[1] & mask;
529 	if (invert) {
530 		val1 = mask - val1;
531 		val2 = mask - val2;
532 	}
533 	val1 <<= shift_left;
534 	val2 <<= shift_right;
535 	spin_lock_irqsave(&chip->reg_lock, flags);
536 	if (left_reg != right_reg) {
537 		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
538 		val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
539 		change = val1 != chip->eimage[CS4236_REG(left_reg)] || val2 != chip->eimage[CS4236_REG(right_reg)];
540 		snd_cs4236_ext_out(chip, left_reg, val1);
541 		snd_cs4236_ext_out(chip, right_reg, val2);
542 	} else {
543 		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
544 		change = val1 != chip->eimage[CS4236_REG(left_reg)];
545 		snd_cs4236_ext_out(chip, left_reg, val1);
546 	}
547 	spin_unlock_irqrestore(&chip->reg_lock, flags);
548 	return change;
549 }
550 
551 #define CS4236_DOUBLE1(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
552 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
553   .info = snd_cs4236_info_double, \
554   .get = snd_cs4236_get_double1, .put = snd_cs4236_put_double1, \
555   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
556 
557 static int snd_cs4236_get_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
558 {
559 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
560 	unsigned long flags;
561 	int left_reg = kcontrol->private_value & 0xff;
562 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
563 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
564 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
565 	int mask = (kcontrol->private_value >> 24) & 0xff;
566 	int invert = (kcontrol->private_value >> 22) & 1;
567 
568 	spin_lock_irqsave(&chip->reg_lock, flags);
569 	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
570 	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
571 	spin_unlock_irqrestore(&chip->reg_lock, flags);
572 	if (invert) {
573 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
574 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
575 	}
576 	return 0;
577 }
578 
579 static int snd_cs4236_put_double1(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
580 {
581 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
582 	unsigned long flags;
583 	int left_reg = kcontrol->private_value & 0xff;
584 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
585 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
586 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
587 	int mask = (kcontrol->private_value >> 24) & 0xff;
588 	int invert = (kcontrol->private_value >> 22) & 1;
589 	int change;
590 	unsigned short val1, val2;
591 
592 	val1 = ucontrol->value.integer.value[0] & mask;
593 	val2 = ucontrol->value.integer.value[1] & mask;
594 	if (invert) {
595 		val1 = mask - val1;
596 		val2 = mask - val2;
597 	}
598 	val1 <<= shift_left;
599 	val2 <<= shift_right;
600 	spin_lock_irqsave(&chip->reg_lock, flags);
601 	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
602 	val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
603 	change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
604 	snd_cs4231_out(chip, left_reg, val1);
605 	snd_cs4236_ext_out(chip, right_reg, val2);
606 	spin_unlock_irqrestore(&chip->reg_lock, flags);
607 	return change;
608 }
609 
610 #define CS4236_MASTER_DIGITAL(xname, xindex) \
611 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
612   .info = snd_cs4236_info_double, \
613   .get = snd_cs4236_get_master_digital, .put = snd_cs4236_put_master_digital, \
614   .private_value = 71 << 24 }
615 
616 static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
617 {
618 	return (vol < 64) ? 63 - vol : 64 + (71 - vol);
619 }
620 
621 static int snd_cs4236_get_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
622 {
623 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
624 	unsigned long flags;
625 
626 	spin_lock_irqsave(&chip->reg_lock, flags);
627 	ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
628 	ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
629 	spin_unlock_irqrestore(&chip->reg_lock, flags);
630 	return 0;
631 }
632 
633 static int snd_cs4236_put_master_digital(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
634 {
635 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
636 	unsigned long flags;
637 	int change;
638 	unsigned short val1, val2;
639 
640 	val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
641 	val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
642 	spin_lock_irqsave(&chip->reg_lock, flags);
643 	val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
644 	val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
645 	change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
646 	snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
647 	snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val2);
648 	spin_unlock_irqrestore(&chip->reg_lock, flags);
649 	return change;
650 }
651 
652 #define CS4235_OUTPUT_ACCU(xname, xindex) \
653 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
654   .info = snd_cs4236_info_double, \
655   .get = snd_cs4235_get_output_accu, .put = snd_cs4235_put_output_accu, \
656   .private_value = 3 << 24 }
657 
658 static inline int snd_cs4235_mixer_output_accu_get_volume(int vol)
659 {
660 	switch ((vol >> 5) & 3) {
661 	case 0: return 1;
662 	case 1: return 3;
663 	case 2: return 2;
664 	case 3: return 0;
665  	}
666 	return 3;
667 }
668 
669 static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
670 {
671 	switch (vol & 3) {
672 	case 0: return 3 << 5;
673 	case 1: return 0 << 5;
674 	case 2: return 2 << 5;
675 	case 3: return 1 << 5;
676 	}
677 	return 1 << 5;
678 }
679 
680 static int snd_cs4235_get_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
681 {
682 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
683 	unsigned long flags;
684 
685 	spin_lock_irqsave(&chip->reg_lock, flags);
686 	ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
687 	ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
688 	spin_unlock_irqrestore(&chip->reg_lock, flags);
689 	return 0;
690 }
691 
692 static int snd_cs4235_put_output_accu(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
693 {
694 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
695 	unsigned long flags;
696 	int change;
697 	unsigned short val1, val2;
698 
699 	val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
700 	val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
701 	spin_lock_irqsave(&chip->reg_lock, flags);
702 	val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
703 	val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
704 	change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
705 	snd_cs4231_out(chip, CS4235_LEFT_MASTER, val1);
706 	snd_cs4231_out(chip, CS4235_RIGHT_MASTER, val2);
707 	spin_unlock_irqrestore(&chip->reg_lock, flags);
708 	return change;
709 }
710 
711 static struct snd_kcontrol_new snd_cs4236_controls[] = {
712 
713 CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
714 CS4236_DOUBLE("Master Digital Capture Switch", 0, CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
715 CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
716 
717 CS4236_DOUBLE("Capture Boost Volume", 0, CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
718 
719 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
720 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
721 
722 CS4236_DOUBLE("DSP Playback Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
723 CS4236_DOUBLE("DSP Playback Volume", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 0, 0, 63, 1),
724 
725 CS4236_DOUBLE("FM Playback Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
726 CS4236_DOUBLE("FM Playback Volume", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 0, 0, 63, 1),
727 
728 CS4236_DOUBLE("Wavetable Playback Switch", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
729 CS4236_DOUBLE("Wavetable Playback Volume", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 0, 0, 63, 1),
730 
731 CS4231_DOUBLE("Synth Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
732 CS4231_DOUBLE("Synth Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
733 CS4231_DOUBLE("Synth Capture Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
734 CS4231_DOUBLE("Synth Capture Bypass", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 5, 5, 1, 1),
735 
736 CS4236_DOUBLE("Mic Playback Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
737 CS4236_DOUBLE("Mic Capture Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
738 CS4236_DOUBLE("Mic Volume", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 0, 0, 31, 1),
739 CS4236_DOUBLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 5, 5, 1, 0),
740 
741 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
742 CS4231_DOUBLE("Line Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
743 CS4231_DOUBLE("Line Capture Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
744 CS4231_DOUBLE("Line Capture Bypass", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 5, 5, 1, 1),
745 
746 CS4231_DOUBLE("CD Playback Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
747 CS4231_DOUBLE("CD Volume", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
748 CS4231_DOUBLE("CD Capture Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
749 
750 CS4236_DOUBLE1("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
751 CS4236_DOUBLE1("Mono Playback Switch", 0, CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
752 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
753 CS4231_SINGLE("Mono Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
754 
755 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
756 CS4231_DOUBLE("Analog Loopback Capture Switch", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
757 
758 CS4231_SINGLE("Digital Loopback Playback Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
759 CS4236_DOUBLE1("Digital Loopback Playback Volume", 0, CS4231_LOOPBACK, CS4236_RIGHT_LOOPBACK, 2, 0, 63, 1)
760 };
761 
762 static struct snd_kcontrol_new snd_cs4235_controls[] = {
763 
764 CS4231_DOUBLE("Master Switch", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 7, 7, 1, 1),
765 CS4231_DOUBLE("Master Volume", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 0, 0, 31, 1),
766 
767 CS4235_OUTPUT_ACCU("Playback Volume", 0),
768 
769 CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
770 CS4236_DOUBLE("Master Digital Capture Switch", 0, CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
771 CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
772 
773 CS4231_DOUBLE("Master Digital Playback Switch", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
774 CS4231_DOUBLE("Master Digital Capture Switch", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
775 CS4231_DOUBLE("Master Digital Volume", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
776 
777 CS4236_DOUBLE("Capture Volume", 0, CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
778 
779 CS4231_DOUBLE("PCM Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
780 CS4231_DOUBLE("PCM Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
781 
782 CS4236_DOUBLE("DSP Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
783 
784 CS4236_DOUBLE("FM Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
785 
786 CS4236_DOUBLE("Wavetable Switch", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
787 
788 CS4236_DOUBLE("Mic Capture Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
789 CS4236_DOUBLE("Mic Playback Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
790 CS4236_SINGLE("Mic Volume", 0, CS4236_LEFT_MIC, 0, 31, 1),
791 CS4236_SINGLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, 5, 1, 0),
792 
793 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
794 CS4231_DOUBLE("Aux Capture Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
795 CS4231_DOUBLE("Aux Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
796 
797 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
798 CS4231_DOUBLE("Aux Capture Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
799 CS4231_DOUBLE("Aux Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
800 
801 CS4236_DOUBLE1("Master Mono Switch", 0, CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
802 
803 CS4236_DOUBLE1("Mono Switch", 0, CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
804 CS4231_SINGLE("Mono Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
805 
806 CS4231_DOUBLE("Analog Loopback Switch", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
807 };
808 
809 #define CS4236_IEC958_ENABLE(xname, xindex) \
810 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
811   .info = snd_cs4236_info_single, \
812   .get = snd_cs4236_get_iec958_switch, .put = snd_cs4236_put_iec958_switch, \
813   .private_value = 1 << 16 }
814 
815 static int snd_cs4236_get_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
816 {
817 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
818 	unsigned long flags;
819 
820 	spin_lock_irqsave(&chip->reg_lock, flags);
821 	ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
822 #if 0
823 	printk("get valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
824 			snd_cs4231_in(chip, CS4231_ALT_FEATURE_1),
825 			snd_cs4236_ctrl_in(chip, 3),
826 			snd_cs4236_ctrl_in(chip, 4),
827 			snd_cs4236_ctrl_in(chip, 5),
828 			snd_cs4236_ctrl_in(chip, 6),
829 			snd_cs4236_ctrl_in(chip, 8));
830 #endif
831 	spin_unlock_irqrestore(&chip->reg_lock, flags);
832 	return 0;
833 }
834 
835 static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
836 {
837 	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
838 	unsigned long flags;
839 	int change;
840 	unsigned short enable, val;
841 
842 	enable = ucontrol->value.integer.value[0] & 1;
843 
844 	mutex_lock(&chip->mce_mutex);
845 	snd_cs4231_mce_up(chip);
846 	spin_lock_irqsave(&chip->reg_lock, flags);
847 	val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
848 	change = val != chip->image[CS4231_ALT_FEATURE_1];
849 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, val);
850 	val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
851 	snd_cs4236_ctrl_out(chip, 4, val);
852 	udelay(100);
853 	val &= ~0x40;
854 	snd_cs4236_ctrl_out(chip, 4, val);
855 	spin_unlock_irqrestore(&chip->reg_lock, flags);
856 	snd_cs4231_mce_down(chip);
857 	mutex_unlock(&chip->mce_mutex);
858 
859 #if 0
860 	printk("set valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
861 			snd_cs4231_in(chip, CS4231_ALT_FEATURE_1),
862 			snd_cs4236_ctrl_in(chip, 3),
863 			snd_cs4236_ctrl_in(chip, 4),
864 			snd_cs4236_ctrl_in(chip, 5),
865 			snd_cs4236_ctrl_in(chip, 6),
866 			snd_cs4236_ctrl_in(chip, 8));
867 #endif
868 	return change;
869 }
870 
871 static struct snd_kcontrol_new snd_cs4236_iec958_controls[] = {
872 CS4236_IEC958_ENABLE("IEC958 Output Enable", 0),
873 CS4236_SINGLEC("IEC958 Output Validity", 0, 4, 4, 1, 0),
874 CS4236_SINGLEC("IEC958 Output User", 0, 4, 5, 1, 0),
875 CS4236_SINGLEC("IEC958 Output CSBR", 0, 4, 6, 1, 0),
876 CS4236_SINGLEC("IEC958 Output Channel Status Low", 0, 5, 1, 127, 0),
877 CS4236_SINGLEC("IEC958 Output Channel Status High", 0, 6, 0, 255, 0)
878 };
879 
880 static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4235[] = {
881 CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
882 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1)
883 };
884 
885 static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4237[] = {
886 CS4236_SINGLEC("3D Control - Switch", 0, 3, 7, 1, 0),
887 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
888 CS4236_SINGLEC("3D Control - Center", 0, 2, 0, 15, 1),
889 CS4236_SINGLEC("3D Control - Mono", 0, 3, 6, 1, 0),
890 CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
891 };
892 
893 static struct snd_kcontrol_new snd_cs4236_3d_controls_cs4238[] = {
894 CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
895 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
896 CS4236_SINGLEC("3D Control - Volume", 0, 2, 0, 15, 1),
897 CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
898 };
899 
900 int snd_cs4236_mixer(struct snd_cs4231 *chip)
901 {
902 	struct snd_card *card;
903 	unsigned int idx, count;
904 	int err;
905 	struct snd_kcontrol_new *kcontrol;
906 
907 	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
908 	card = chip->card;
909 	strcpy(card->mixername, snd_cs4231_chip_id(chip));
910 
911 	if (chip->hardware == CS4231_HW_CS4235 ||
912 	    chip->hardware == CS4231_HW_CS4239) {
913 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4235_controls); idx++) {
914 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4235_controls[idx], chip))) < 0)
915 				return err;
916 		}
917 	} else {
918 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_controls); idx++) {
919 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_controls[idx], chip))) < 0)
920 				return err;
921 		}
922 	}
923 	switch (chip->hardware) {
924 	case CS4231_HW_CS4235:
925 	case CS4231_HW_CS4239:
926 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4235);
927 		kcontrol = snd_cs4236_3d_controls_cs4235;
928 		break;
929 	case CS4231_HW_CS4237B:
930 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4237);
931 		kcontrol = snd_cs4236_3d_controls_cs4237;
932 		break;
933 	case CS4231_HW_CS4238B:
934 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4238);
935 		kcontrol = snd_cs4236_3d_controls_cs4238;
936 		break;
937 	default:
938 		count = 0;
939 		kcontrol = NULL;
940 	}
941 	for (idx = 0; idx < count; idx++, kcontrol++) {
942 		if ((err = snd_ctl_add(card, snd_ctl_new1(kcontrol, chip))) < 0)
943 			return err;
944 	}
945 	if (chip->hardware == CS4231_HW_CS4237B ||
946 	    chip->hardware == CS4231_HW_CS4238B) {
947 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_iec958_controls); idx++) {
948 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_iec958_controls[idx], chip))) < 0)
949 				return err;
950 		}
951 	}
952 	return 0;
953 }
954 
955 EXPORT_SYMBOL(snd_cs4236_create);
956 EXPORT_SYMBOL(snd_cs4236_pcm);
957 EXPORT_SYMBOL(snd_cs4236_mixer);
958 
959 /*
960  *  INIT part
961  */
962 
963 static int __init alsa_cs4236_init(void)
964 {
965 	return 0;
966 }
967 
968 static void __exit alsa_cs4236_exit(void)
969 {
970 }
971 
972 module_init(alsa_cs4236_init)
973 module_exit(alsa_cs4236_exit)
974