xref: /openbmc/linux/sound/isa/cs423x/cs4236_lib.c (revision 1da177e4)
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(cs4231_t *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(cs4231_t *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 ratnum_t 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 snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks = {
155 	.nrats = CLOCKS,
156 	.rats = clocks,
157 };
158 
159 static int snd_cs4236_xrate(snd_pcm_runtime_t *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 		snd_runtime_check(divisor >= 21 && divisor <= 192, return 192);
177 		return divisor;
178 	}
179 }
180 
181 static void snd_cs4236_playback_format(cs4231_t *chip, snd_pcm_hw_params_t *params, unsigned char pdfr)
182 {
183 	unsigned long flags;
184 	unsigned char rate = divisor_to_rate_register(params->rate_den);
185 
186 	spin_lock_irqsave(&chip->reg_lock, flags);
187 	/* set fast playback format change and clean playback FIFO */
188 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10);
189 	snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, pdfr & 0xf0);
190 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] & ~0x10);
191 	snd_cs4236_ext_out(chip, CS4236_DAC_RATE, rate);
192 	spin_unlock_irqrestore(&chip->reg_lock, flags);
193 }
194 
195 static void snd_cs4236_capture_format(cs4231_t *chip, snd_pcm_hw_params_t *params, unsigned char cdfr)
196 {
197 	unsigned long flags;
198 	unsigned char rate = divisor_to_rate_register(params->rate_den);
199 
200 	spin_lock_irqsave(&chip->reg_lock, flags);
201 	/* set fast capture format change and clean capture FIFO */
202 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20);
203 	snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr & 0xf0);
204 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
205 	snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
206 	spin_unlock_irqrestore(&chip->reg_lock, flags);
207 }
208 
209 #ifdef CONFIG_PM
210 
211 static void snd_cs4236_suspend(cs4231_t *chip)
212 {
213 	int reg;
214 	unsigned long flags;
215 
216 	spin_lock_irqsave(&chip->reg_lock, flags);
217 	for (reg = 0; reg < 32; reg++)
218 		chip->image[reg] = snd_cs4231_in(chip, reg);
219 	for (reg = 0; reg < 18; reg++)
220 		chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
221 	for (reg = 2; reg < 9; reg++)
222 		chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
223 	spin_unlock_irqrestore(&chip->reg_lock, flags);
224 }
225 
226 static void snd_cs4236_resume(cs4231_t *chip)
227 {
228 	int reg;
229 	unsigned long flags;
230 
231 	snd_cs4231_mce_up(chip);
232 	spin_lock_irqsave(&chip->reg_lock, flags);
233 	for (reg = 0; reg < 32; reg++) {
234 		switch (reg) {
235 		case CS4236_EXT_REG:
236 		case CS4231_VERSION:
237 		case 27:	/* why? CS4235 - master left */
238 		case 29:	/* why? CS4235 - master right */
239 			break;
240 		default:
241 			snd_cs4231_out(chip, reg, chip->image[reg]);
242 			break;
243 		}
244 	}
245 	for (reg = 0; reg < 18; reg++)
246 		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
247 	for (reg = 2; reg < 9; reg++) {
248 		switch (reg) {
249 		case 7:
250 			break;
251 		default:
252 			snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
253 		}
254 	}
255 	spin_unlock_irqrestore(&chip->reg_lock, flags);
256 	snd_cs4231_mce_down(chip);
257 }
258 
259 #endif /* CONFIG_PM */
260 
261 int snd_cs4236_create(snd_card_t * card,
262 		      unsigned long port,
263 		      unsigned long cport,
264 		      int irq, int dma1, int dma2,
265 		      unsigned short hardware,
266 		      unsigned short hwshare,
267 		      cs4231_t ** rchip)
268 {
269 	cs4231_t *chip;
270 	unsigned char ver1, ver2;
271 	unsigned int reg;
272 	int err;
273 
274 	*rchip = NULL;
275 	if (hardware == CS4231_HW_DETECT)
276 		hardware = CS4231_HW_DETECT3;
277 	if (cport < 0x100) {
278 		snd_printk("please, specify control port for CS4236+ chips\n");
279 		return -ENODEV;
280 	}
281 	if ((err = snd_cs4231_create(card, port, cport, irq, dma1, dma2, hardware, hwshare, &chip)) < 0)
282 		return err;
283 
284 	if (!(chip->hardware & CS4231_HW_CS4236B_MASK)) {
285 	        snd_printk("CS4236+: MODE3 and extended registers not available, hardware=0x%x\n",chip->hardware);
286 		snd_device_free(card, chip);
287 		return -ENODEV;
288 	}
289 #if 0
290 	{
291 		int idx;
292 		for (idx = 0; idx < 8; idx++)
293 			snd_printk("CD%i = 0x%x\n", idx, inb(chip->cport + idx));
294 		for (idx = 0; idx < 9; idx++)
295 			snd_printk("C%i = 0x%x\n", idx, snd_cs4236_ctrl_in(chip, idx));
296 	}
297 #endif
298 	ver1 = snd_cs4236_ctrl_in(chip, 1);
299 	ver2 = snd_cs4236_ext_in(chip, CS4236_VERSION);
300 	snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n", cport, ver1, ver2);
301 	if (ver1 != ver2) {
302 		snd_printk("CS4236+ chip detected, but control port 0x%lx is not valid\n", cport);
303 		snd_device_free(card, chip);
304 		return -ENODEV;
305 	}
306 	snd_cs4236_ctrl_out(chip, 0, 0x00);
307 	snd_cs4236_ctrl_out(chip, 2, 0xff);
308 	snd_cs4236_ctrl_out(chip, 3, 0x00);
309 	snd_cs4236_ctrl_out(chip, 4, 0x80);
310 	snd_cs4236_ctrl_out(chip, 5, ((IEC958_AES1_CON_PCM_CODER & 3) << 6) | IEC958_AES0_CON_EMPHASIS_NONE);
311 	snd_cs4236_ctrl_out(chip, 6, IEC958_AES1_CON_PCM_CODER >> 2);
312 	snd_cs4236_ctrl_out(chip, 7, 0x00);
313 	/* 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958 output */
314 	/* is working with this setup, other hardware should have */
315 	/* different signal paths and this value should be selectable */
316 	/* in the future */
317 	snd_cs4236_ctrl_out(chip, 8, 0x8c);
318 	chip->rate_constraint = snd_cs4236_xrate;
319 	chip->set_playback_format = snd_cs4236_playback_format;
320 	chip->set_capture_format = snd_cs4236_capture_format;
321 #ifdef CONFIG_PM
322 	chip->suspend = snd_cs4236_suspend;
323 	chip->resume = snd_cs4236_resume;
324 #endif
325 
326 	/* initialize extended registers */
327 	for (reg = 0; reg < sizeof(snd_cs4236_ext_map); reg++)
328 		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), snd_cs4236_ext_map[reg]);
329 
330         /* initialize compatible but more featured registers */
331 	snd_cs4231_out(chip, CS4231_LEFT_INPUT, 0x40);
332 	snd_cs4231_out(chip, CS4231_RIGHT_INPUT, 0x40);
333 	snd_cs4231_out(chip, CS4231_AUX1_LEFT_INPUT, 0xff);
334 	snd_cs4231_out(chip, CS4231_AUX1_RIGHT_INPUT, 0xff);
335 	snd_cs4231_out(chip, CS4231_AUX2_LEFT_INPUT, 0xdf);
336 	snd_cs4231_out(chip, CS4231_AUX2_RIGHT_INPUT, 0xdf);
337 	snd_cs4231_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
338 	snd_cs4231_out(chip, CS4231_LEFT_LINE_IN, 0xff);
339 	snd_cs4231_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
340 	switch (chip->hardware) {
341 	case CS4231_HW_CS4235:
342 	case CS4231_HW_CS4239:
343 		snd_cs4231_out(chip, CS4235_LEFT_MASTER, 0xff);
344 		snd_cs4231_out(chip, CS4235_RIGHT_MASTER, 0xff);
345 		break;
346 	}
347 
348 	*rchip = chip;
349 	return 0;
350 }
351 
352 int snd_cs4236_pcm(cs4231_t *chip, int device, snd_pcm_t **rpcm)
353 {
354 	snd_pcm_t *pcm;
355 	int err;
356 
357 	if ((err = snd_cs4231_pcm(chip, device, &pcm)) < 0)
358 		return err;
359 	pcm->info_flags &= ~SNDRV_PCM_INFO_JOINT_DUPLEX;
360 	if (rpcm)
361 		*rpcm = pcm;
362 	return 0;
363 }
364 
365 /*
366  *  MIXER
367  */
368 
369 #define CS4236_SINGLE(xname, xindex, reg, shift, mask, invert) \
370 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
371   .info = snd_cs4236_info_single, \
372   .get = snd_cs4236_get_single, .put = snd_cs4236_put_single, \
373   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
374 
375 static int snd_cs4236_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
376 {
377 	int mask = (kcontrol->private_value >> 16) & 0xff;
378 
379 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
380 	uinfo->count = 1;
381 	uinfo->value.integer.min = 0;
382 	uinfo->value.integer.max = mask;
383 	return 0;
384 }
385 
386 static int snd_cs4236_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
387 {
388 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
389 	unsigned long flags;
390 	int reg = kcontrol->private_value & 0xff;
391 	int shift = (kcontrol->private_value >> 8) & 0xff;
392 	int mask = (kcontrol->private_value >> 16) & 0xff;
393 	int invert = (kcontrol->private_value >> 24) & 0xff;
394 
395 	spin_lock_irqsave(&chip->reg_lock, flags);
396 	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
397 	spin_unlock_irqrestore(&chip->reg_lock, flags);
398 	if (invert)
399 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
400 	return 0;
401 }
402 
403 static int snd_cs4236_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
404 {
405 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
406 	unsigned long flags;
407 	int reg = kcontrol->private_value & 0xff;
408 	int shift = (kcontrol->private_value >> 8) & 0xff;
409 	int mask = (kcontrol->private_value >> 16) & 0xff;
410 	int invert = (kcontrol->private_value >> 24) & 0xff;
411 	int change;
412 	unsigned short val;
413 
414 	val = (ucontrol->value.integer.value[0] & mask);
415 	if (invert)
416 		val = mask - val;
417 	val <<= shift;
418 	spin_lock_irqsave(&chip->reg_lock, flags);
419 	val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
420 	change = val != chip->eimage[CS4236_REG(reg)];
421 	snd_cs4236_ext_out(chip, reg, val);
422 	spin_unlock_irqrestore(&chip->reg_lock, flags);
423 	return change;
424 }
425 
426 #define CS4236_SINGLEC(xname, xindex, reg, shift, mask, invert) \
427 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
428   .info = snd_cs4236_info_single, \
429   .get = snd_cs4236_get_singlec, .put = snd_cs4236_put_singlec, \
430   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
431 
432 static int snd_cs4236_get_singlec(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
433 {
434 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
435 	unsigned long flags;
436 	int reg = kcontrol->private_value & 0xff;
437 	int shift = (kcontrol->private_value >> 8) & 0xff;
438 	int mask = (kcontrol->private_value >> 16) & 0xff;
439 	int invert = (kcontrol->private_value >> 24) & 0xff;
440 
441 	spin_lock_irqsave(&chip->reg_lock, flags);
442 	ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
443 	spin_unlock_irqrestore(&chip->reg_lock, flags);
444 	if (invert)
445 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
446 	return 0;
447 }
448 
449 static int snd_cs4236_put_singlec(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
450 {
451 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
452 	unsigned long flags;
453 	int reg = kcontrol->private_value & 0xff;
454 	int shift = (kcontrol->private_value >> 8) & 0xff;
455 	int mask = (kcontrol->private_value >> 16) & 0xff;
456 	int invert = (kcontrol->private_value >> 24) & 0xff;
457 	int change;
458 	unsigned short val;
459 
460 	val = (ucontrol->value.integer.value[0] & mask);
461 	if (invert)
462 		val = mask - val;
463 	val <<= shift;
464 	spin_lock_irqsave(&chip->reg_lock, flags);
465 	val = (chip->cimage[reg] & ~(mask << shift)) | val;
466 	change = val != chip->cimage[reg];
467 	snd_cs4236_ctrl_out(chip, reg, val);
468 	spin_unlock_irqrestore(&chip->reg_lock, flags);
469 	return change;
470 }
471 
472 #define CS4236_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
473 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
474   .info = snd_cs4236_info_double, \
475   .get = snd_cs4236_get_double, .put = snd_cs4236_put_double, \
476   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
477 
478 static int snd_cs4236_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
479 {
480 	int mask = (kcontrol->private_value >> 24) & 0xff;
481 
482 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
483 	uinfo->count = 2;
484 	uinfo->value.integer.min = 0;
485 	uinfo->value.integer.max = mask;
486 	return 0;
487 }
488 
489 static int snd_cs4236_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
490 {
491 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
492 	unsigned long flags;
493 	int left_reg = kcontrol->private_value & 0xff;
494 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
495 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
496 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
497 	int mask = (kcontrol->private_value >> 24) & 0xff;
498 	int invert = (kcontrol->private_value >> 22) & 1;
499 
500 	spin_lock_irqsave(&chip->reg_lock, flags);
501 	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
502 	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
503 	spin_unlock_irqrestore(&chip->reg_lock, flags);
504 	if (invert) {
505 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
506 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
507 	}
508 	return 0;
509 }
510 
511 static int snd_cs4236_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
512 {
513 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
514 	unsigned long flags;
515 	int left_reg = kcontrol->private_value & 0xff;
516 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
517 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
518 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
519 	int mask = (kcontrol->private_value >> 24) & 0xff;
520 	int invert = (kcontrol->private_value >> 22) & 1;
521 	int change;
522 	unsigned short val1, val2;
523 
524 	val1 = ucontrol->value.integer.value[0] & mask;
525 	val2 = ucontrol->value.integer.value[1] & mask;
526 	if (invert) {
527 		val1 = mask - val1;
528 		val2 = mask - val2;
529 	}
530 	val1 <<= shift_left;
531 	val2 <<= shift_right;
532 	spin_lock_irqsave(&chip->reg_lock, flags);
533 	if (left_reg != right_reg) {
534 		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
535 		val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
536 		change = val1 != chip->eimage[CS4236_REG(left_reg)] || val2 != chip->eimage[CS4236_REG(right_reg)];
537 		snd_cs4236_ext_out(chip, left_reg, val1);
538 		snd_cs4236_ext_out(chip, right_reg, val2);
539 	} else {
540 		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
541 		change = val1 != chip->eimage[CS4236_REG(left_reg)];
542 		snd_cs4236_ext_out(chip, left_reg, val1);
543 	}
544 	spin_unlock_irqrestore(&chip->reg_lock, flags);
545 	return change;
546 }
547 
548 #define CS4236_DOUBLE1(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
549 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
550   .info = snd_cs4236_info_double, \
551   .get = snd_cs4236_get_double1, .put = snd_cs4236_put_double1, \
552   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
553 
554 static int snd_cs4236_get_double1(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
555 {
556 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
557 	unsigned long flags;
558 	int left_reg = kcontrol->private_value & 0xff;
559 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
560 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
561 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
562 	int mask = (kcontrol->private_value >> 24) & 0xff;
563 	int invert = (kcontrol->private_value >> 22) & 1;
564 
565 	spin_lock_irqsave(&chip->reg_lock, flags);
566 	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
567 	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
568 	spin_unlock_irqrestore(&chip->reg_lock, flags);
569 	if (invert) {
570 		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
571 		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
572 	}
573 	return 0;
574 }
575 
576 static int snd_cs4236_put_double1(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
577 {
578 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
579 	unsigned long flags;
580 	int left_reg = kcontrol->private_value & 0xff;
581 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
582 	int shift_left = (kcontrol->private_value >> 16) & 0x07;
583 	int shift_right = (kcontrol->private_value >> 19) & 0x07;
584 	int mask = (kcontrol->private_value >> 24) & 0xff;
585 	int invert = (kcontrol->private_value >> 22) & 1;
586 	int change;
587 	unsigned short val1, val2;
588 
589 	val1 = ucontrol->value.integer.value[0] & mask;
590 	val2 = ucontrol->value.integer.value[1] & mask;
591 	if (invert) {
592 		val1 = mask - val1;
593 		val2 = mask - val2;
594 	}
595 	val1 <<= shift_left;
596 	val2 <<= shift_right;
597 	spin_lock_irqsave(&chip->reg_lock, flags);
598 	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
599 	val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
600 	change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
601 	snd_cs4231_out(chip, left_reg, val1);
602 	snd_cs4236_ext_out(chip, right_reg, val2);
603 	spin_unlock_irqrestore(&chip->reg_lock, flags);
604 	return change;
605 }
606 
607 #define CS4236_MASTER_DIGITAL(xname, xindex) \
608 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
609   .info = snd_cs4236_info_double, \
610   .get = snd_cs4236_get_master_digital, .put = snd_cs4236_put_master_digital, \
611   .private_value = 71 << 24 }
612 
613 static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
614 {
615 	return (vol < 64) ? 63 - vol : 64 + (71 - vol);
616 }
617 
618 static int snd_cs4236_get_master_digital(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
619 {
620 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
621 	unsigned long flags;
622 
623 	spin_lock_irqsave(&chip->reg_lock, flags);
624 	ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
625 	ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
626 	spin_unlock_irqrestore(&chip->reg_lock, flags);
627 	return 0;
628 }
629 
630 static int snd_cs4236_put_master_digital(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
631 {
632 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
633 	unsigned long flags;
634 	int change;
635 	unsigned short val1, val2;
636 
637 	val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
638 	val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
639 	spin_lock_irqsave(&chip->reg_lock, flags);
640 	val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
641 	val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
642 	change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
643 	snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
644 	snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val1);
645 	spin_unlock_irqrestore(&chip->reg_lock, flags);
646 	return change;
647 }
648 
649 #define CS4235_OUTPUT_ACCU(xname, xindex) \
650 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
651   .info = snd_cs4236_info_double, \
652   .get = snd_cs4235_get_output_accu, .put = snd_cs4235_put_output_accu, \
653   .private_value = 3 << 24 }
654 
655 static inline int snd_cs4235_mixer_output_accu_get_volume(int vol)
656 {
657 	switch ((vol >> 5) & 3) {
658 	case 0: return 1;
659 	case 1: return 3;
660 	case 2: return 2;
661 	case 3: return 0;
662  	}
663 	return 3;
664 }
665 
666 static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
667 {
668 	switch (vol & 3) {
669 	case 0: return 3 << 5;
670 	case 1: return 0 << 5;
671 	case 2: return 2 << 5;
672 	case 3: return 1 << 5;
673 	}
674 	return 1 << 5;
675 }
676 
677 static int snd_cs4235_get_output_accu(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
678 {
679 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
680 	unsigned long flags;
681 
682 	spin_lock_irqsave(&chip->reg_lock, flags);
683 	ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
684 	ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
685 	spin_unlock_irqrestore(&chip->reg_lock, flags);
686 	return 0;
687 }
688 
689 static int snd_cs4235_put_output_accu(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
690 {
691 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
692 	unsigned long flags;
693 	int change;
694 	unsigned short val1, val2;
695 
696 	val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
697 	val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
698 	spin_lock_irqsave(&chip->reg_lock, flags);
699 	val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
700 	val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
701 	change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
702 	snd_cs4231_out(chip, CS4235_LEFT_MASTER, val1);
703 	snd_cs4231_out(chip, CS4235_RIGHT_MASTER, val2);
704 	spin_unlock_irqrestore(&chip->reg_lock, flags);
705 	return change;
706 }
707 
708 static snd_kcontrol_new_t snd_cs4236_controls[] = {
709 
710 CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
711 CS4236_DOUBLE("Master Digital Capture Switch", 0, CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
712 CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
713 
714 CS4236_DOUBLE("Capture Boost Volume", 0, CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
715 
716 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
717 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
718 
719 CS4236_DOUBLE("DSP Playback Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
720 CS4236_DOUBLE("DSP Playback Volume", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 0, 0, 63, 1),
721 
722 CS4236_DOUBLE("FM Playback Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
723 CS4236_DOUBLE("FM Playback Volume", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 0, 0, 63, 1),
724 
725 CS4236_DOUBLE("Wavetable Playback Switch", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
726 CS4236_DOUBLE("Wavetable Playback Volume", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 0, 0, 63, 1),
727 
728 CS4231_DOUBLE("Synth Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
729 CS4231_DOUBLE("Synth Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
730 CS4231_DOUBLE("Synth Capture Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
731 CS4231_DOUBLE("Synth Capture Bypass", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 5, 5, 1, 1),
732 
733 CS4236_DOUBLE("Mic Playback Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
734 CS4236_DOUBLE("Mic Capture Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
735 CS4236_DOUBLE("Mic Volume", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 0, 0, 31, 1),
736 CS4236_DOUBLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 5, 5, 1, 0),
737 
738 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
739 CS4231_DOUBLE("Line Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
740 CS4231_DOUBLE("Line Capture Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
741 CS4231_DOUBLE("Line Capture Bypass", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 5, 5, 1, 1),
742 
743 CS4231_DOUBLE("CD Playback Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
744 CS4231_DOUBLE("CD Volume", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
745 CS4231_DOUBLE("CD Capture Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
746 
747 CS4236_DOUBLE1("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
748 CS4236_DOUBLE1("Mono Playback Switch", 0, CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
749 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
750 CS4231_SINGLE("Mono Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
751 
752 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
753 CS4231_DOUBLE("Analog Loopback Capture Switch", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
754 
755 CS4231_SINGLE("Digital Loopback Playback Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
756 CS4236_DOUBLE1("Digital Loopback Playback Volume", 0, CS4231_LOOPBACK, CS4236_RIGHT_LOOPBACK, 2, 0, 63, 1)
757 };
758 
759 static snd_kcontrol_new_t snd_cs4235_controls[] = {
760 
761 CS4231_DOUBLE("Master Switch", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 7, 7, 1, 1),
762 CS4231_DOUBLE("Master Volume", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 0, 0, 31, 1),
763 
764 CS4235_OUTPUT_ACCU("Playback Volume", 0),
765 
766 CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
767 CS4236_DOUBLE("Master Digital Capture Switch", 0, CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
768 CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
769 
770 CS4231_DOUBLE("Master Digital Playback Switch", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
771 CS4231_DOUBLE("Master Digital Capture Switch", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
772 CS4231_DOUBLE("Master Digital Volume", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
773 
774 CS4236_DOUBLE("Capture Volume", 0, CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
775 
776 CS4231_DOUBLE("PCM Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
777 CS4231_DOUBLE("PCM Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
778 
779 CS4236_DOUBLE("DSP Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
780 
781 CS4236_DOUBLE("FM Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
782 
783 CS4236_DOUBLE("Wavetable Switch", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
784 
785 CS4236_DOUBLE("Mic Capture Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
786 CS4236_DOUBLE("Mic Playback Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
787 CS4236_SINGLE("Mic Volume", 0, CS4236_LEFT_MIC, 0, 31, 1),
788 CS4236_SINGLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, 5, 1, 0),
789 
790 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
791 CS4231_DOUBLE("Aux Capture Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
792 CS4231_DOUBLE("Aux Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
793 
794 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
795 CS4231_DOUBLE("Aux Capture Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
796 CS4231_DOUBLE("Aux Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
797 
798 CS4236_DOUBLE1("Master Mono Switch", 0, CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
799 
800 CS4236_DOUBLE1("Mono Switch", 0, CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
801 CS4231_SINGLE("Mono Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
802 
803 CS4231_DOUBLE("Analog Loopback Switch", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
804 };
805 
806 #define CS4236_IEC958_ENABLE(xname, xindex) \
807 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
808   .info = snd_cs4236_info_single, \
809   .get = snd_cs4236_get_iec958_switch, .put = snd_cs4236_put_iec958_switch, \
810   .private_value = 1 << 16 }
811 
812 static int snd_cs4236_get_iec958_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
813 {
814 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
815 	unsigned long flags;
816 
817 	spin_lock_irqsave(&chip->reg_lock, flags);
818 	ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
819 #if 0
820 	printk("get valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
821 			snd_cs4231_in(chip, CS4231_ALT_FEATURE_1),
822 			snd_cs4236_ctrl_in(chip, 3),
823 			snd_cs4236_ctrl_in(chip, 4),
824 			snd_cs4236_ctrl_in(chip, 5),
825 			snd_cs4236_ctrl_in(chip, 6),
826 			snd_cs4236_ctrl_in(chip, 8));
827 #endif
828 	spin_unlock_irqrestore(&chip->reg_lock, flags);
829 	return 0;
830 }
831 
832 static int snd_cs4236_put_iec958_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
833 {
834 	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
835 	unsigned long flags;
836 	int change;
837 	unsigned short enable, val;
838 
839 	enable = ucontrol->value.integer.value[0] & 1;
840 
841 	down(&chip->mce_mutex);
842 	snd_cs4231_mce_up(chip);
843 	spin_lock_irqsave(&chip->reg_lock, flags);
844 	val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
845 	change = val != chip->image[CS4231_ALT_FEATURE_1];
846 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, val);
847 	val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
848 	snd_cs4236_ctrl_out(chip, 4, val);
849 	udelay(100);
850 	val &= ~0x40;
851 	snd_cs4236_ctrl_out(chip, 4, val);
852 	spin_unlock_irqrestore(&chip->reg_lock, flags);
853 	snd_cs4231_mce_down(chip);
854 	up(&chip->mce_mutex);
855 
856 #if 0
857 	printk("set valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
858 			snd_cs4231_in(chip, CS4231_ALT_FEATURE_1),
859 			snd_cs4236_ctrl_in(chip, 3),
860 			snd_cs4236_ctrl_in(chip, 4),
861 			snd_cs4236_ctrl_in(chip, 5),
862 			snd_cs4236_ctrl_in(chip, 6),
863 			snd_cs4236_ctrl_in(chip, 8));
864 #endif
865 	return change;
866 }
867 
868 static snd_kcontrol_new_t snd_cs4236_iec958_controls[] = {
869 CS4236_IEC958_ENABLE("IEC958 Output Enable", 0),
870 CS4236_SINGLEC("IEC958 Output Validity", 0, 4, 4, 1, 0),
871 CS4236_SINGLEC("IEC958 Output User", 0, 4, 5, 1, 0),
872 CS4236_SINGLEC("IEC958 Output CSBR", 0, 4, 6, 1, 0),
873 CS4236_SINGLEC("IEC958 Output Channel Status Low", 0, 5, 1, 127, 0),
874 CS4236_SINGLEC("IEC958 Output Channel Status High", 0, 6, 0, 255, 0)
875 };
876 
877 static snd_kcontrol_new_t snd_cs4236_3d_controls_cs4235[] = {
878 CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
879 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1)
880 };
881 
882 static snd_kcontrol_new_t snd_cs4236_3d_controls_cs4237[] = {
883 CS4236_SINGLEC("3D Control - Switch", 0, 3, 7, 1, 0),
884 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
885 CS4236_SINGLEC("3D Control - Center", 0, 2, 0, 15, 1),
886 CS4236_SINGLEC("3D Control - Mono", 0, 3, 6, 1, 0),
887 CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
888 };
889 
890 static snd_kcontrol_new_t snd_cs4236_3d_controls_cs4238[] = {
891 CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
892 CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
893 CS4236_SINGLEC("3D Control - Volume", 0, 2, 0, 15, 1),
894 CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
895 };
896 
897 int snd_cs4236_mixer(cs4231_t *chip)
898 {
899 	snd_card_t *card;
900 	unsigned int idx, count;
901 	int err;
902 	snd_kcontrol_new_t *kcontrol;
903 
904 	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
905 	card = chip->card;
906 	strcpy(card->mixername, snd_cs4231_chip_id(chip));
907 
908 	if (chip->hardware == CS4231_HW_CS4235 ||
909 	    chip->hardware == CS4231_HW_CS4239) {
910 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4235_controls); idx++) {
911 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4235_controls[idx], chip))) < 0)
912 				return err;
913 		}
914 	} else {
915 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_controls); idx++) {
916 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_controls[idx], chip))) < 0)
917 				return err;
918 		}
919 	}
920 	switch (chip->hardware) {
921 	case CS4231_HW_CS4235:
922 	case CS4231_HW_CS4239:
923 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4235);
924 		kcontrol = snd_cs4236_3d_controls_cs4235;
925 		break;
926 	case CS4231_HW_CS4237B:
927 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4237);
928 		kcontrol = snd_cs4236_3d_controls_cs4237;
929 		break;
930 	case CS4231_HW_CS4238B:
931 		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4238);
932 		kcontrol = snd_cs4236_3d_controls_cs4238;
933 		break;
934 	default:
935 		count = 0;
936 		kcontrol = NULL;
937 	}
938 	for (idx = 0; idx < count; idx++, kcontrol++) {
939 		if ((err = snd_ctl_add(card, snd_ctl_new1(kcontrol, chip))) < 0)
940 			return err;
941 	}
942 	if (chip->hardware == CS4231_HW_CS4237B ||
943 	    chip->hardware == CS4231_HW_CS4238B) {
944 		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_iec958_controls); idx++) {
945 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_iec958_controls[idx], chip))) < 0)
946 				return err;
947 		}
948 	}
949 	return 0;
950 }
951 
952 EXPORT_SYMBOL(snd_cs4236_create);
953 EXPORT_SYMBOL(snd_cs4236_pcm);
954 EXPORT_SYMBOL(snd_cs4236_mixer);
955 
956 /*
957  *  INIT part
958  */
959 
960 static int __init alsa_cs4236_init(void)
961 {
962 	return 0;
963 }
964 
965 static void __exit alsa_cs4236_exit(void)
966 {
967 }
968 
969 module_init(alsa_cs4236_init)
970 module_exit(alsa_cs4236_exit)
971