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1/*
2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * Universal routines for AK4531 codec
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <linux/delay.h>
23#include <linux/init.h>
24#include <linux/slab.h>
25#include <linux/mutex.h>
26
27#include <sound/core.h>
28#include <sound/ak4531_codec.h>
29#include <sound/tlv.h>
30
31/*
32MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
33MODULE_DESCRIPTION("Universal routines for AK4531 codec");
34MODULE_LICENSE("GPL");
35*/
36
37#ifdef CONFIG_PROC_FS
38static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
39#else
40#define snd_ak4531_proc_init(card,ak)
41#endif
42
43/*
44 *
45 */
46
47#if 0
48
49static void snd_ak4531_dump(struct snd_ak4531 *ak4531)
50{
51 int idx;
52
53 for (idx = 0; idx < 0x19; idx++)
54 printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",
55 idx, ak4531->regs[idx]);
56}
57
58#endif
59
60/*
61 *
62 */
63
64#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \
65{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
66 .info = snd_ak4531_info_single, \
67 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
68 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }
69#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
70{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
71 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
72 .name = xname, .index = xindex, \
73 .info = snd_ak4531_info_single, \
74 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
75 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \
76 .tlv = { .p = (xtlv) } }
77
78static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
79{
80 int mask = (kcontrol->private_value >> 24) & 0xff;
81
82 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
83 uinfo->count = 1;
84 uinfo->value.integer.min = 0;
85 uinfo->value.integer.max = mask;
86 return 0;
87}
88
89static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
90{
91 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
92 int reg = kcontrol->private_value & 0xff;
93 int shift = (kcontrol->private_value >> 16) & 0x07;
94 int mask = (kcontrol->private_value >> 24) & 0xff;
95 int invert = (kcontrol->private_value >> 22) & 1;
96 int val;
97
98 mutex_lock(&ak4531->reg_mutex);
99 val = (ak4531->regs[reg] >> shift) & mask;
100 mutex_unlock(&ak4531->reg_mutex);
101 if (invert) {
102 val = mask - val;
103 }
104 ucontrol->value.integer.value[0] = val;
105 return 0;
106}
107
108static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
109{
110 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
111 int reg = kcontrol->private_value & 0xff;
112 int shift = (kcontrol->private_value >> 16) & 0x07;
113 int mask = (kcontrol->private_value >> 24) & 0xff;
114 int invert = (kcontrol->private_value >> 22) & 1;
115 int change;
116 int val;
117
118 val = ucontrol->value.integer.value[0] & mask;
119 if (invert) {
120 val = mask - val;
121 }
122 val <<= shift;
123 mutex_lock(&ak4531->reg_mutex);
124 val = (ak4531->regs[reg] & ~(mask << shift)) | val;
125 change = val != ak4531->regs[reg];
126 ak4531->write(ak4531, reg, ak4531->regs[reg] = val);
127 mutex_unlock(&ak4531->reg_mutex);
128 return change;
129}
130
131#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \
132{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
133 .info = snd_ak4531_info_double, \
134 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
135 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }
136#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \
137{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
138 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
139 .name = xname, .index = xindex, \
140 .info = snd_ak4531_info_double, \
141 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
142 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \
143 .tlv = { .p = (xtlv) } }
144
145static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
146{
147 int mask = (kcontrol->private_value >> 24) & 0xff;
148
149 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
150 uinfo->count = 2;
151 uinfo->value.integer.min = 0;
152 uinfo->value.integer.max = mask;
153 return 0;
154}
155
156static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
157{
158 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
159 int left_reg = kcontrol->private_value & 0xff;
160 int right_reg = (kcontrol->private_value >> 8) & 0xff;
161 int left_shift = (kcontrol->private_value >> 16) & 0x07;
162 int right_shift = (kcontrol->private_value >> 19) & 0x07;
163 int mask = (kcontrol->private_value >> 24) & 0xff;
164 int invert = (kcontrol->private_value >> 22) & 1;
165 int left, right;
166
167 mutex_lock(&ak4531->reg_mutex);
168 left = (ak4531->regs[left_reg] >> left_shift) & mask;
169 right = (ak4531->regs[right_reg] >> right_shift) & mask;
170 mutex_unlock(&ak4531->reg_mutex);
171 if (invert) {
172 left = mask - left;
173 right = mask - right;
174 }
175 ucontrol->value.integer.value[0] = left;
176 ucontrol->value.integer.value[1] = right;
177 return 0;
178}
179
180static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
181{
182 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
183 int left_reg = kcontrol->private_value & 0xff;
184 int right_reg = (kcontrol->private_value >> 8) & 0xff;
185 int left_shift = (kcontrol->private_value >> 16) & 0x07;
186 int right_shift = (kcontrol->private_value >> 19) & 0x07;
187 int mask = (kcontrol->private_value >> 24) & 0xff;
188 int invert = (kcontrol->private_value >> 22) & 1;
189 int change;
190 int left, right;
191
192 left = ucontrol->value.integer.value[0] & mask;
193 right = ucontrol->value.integer.value[1] & mask;
194 if (invert) {
195 left = mask - left;
196 right = mask - right;
197 }
198 left <<= left_shift;
199 right <<= right_shift;
200 mutex_lock(&ak4531->reg_mutex);
201 if (left_reg == right_reg) {
202 left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;
203 change = left != ak4531->regs[left_reg];
204 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
205 } else {
206 left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;
207 right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;
208 change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];
209 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
210 ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);
211 }
212 mutex_unlock(&ak4531->reg_mutex);
213 return change;
214}
215
216#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \
217{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
218 .info = snd_ak4531_info_input_sw, \
219 .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \
220 .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }
221
222static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
223{
224 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
225 uinfo->count = 4;
226 uinfo->value.integer.min = 0;
227 uinfo->value.integer.max = 1;
228 return 0;
229}
230
231static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
232{
233 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
234 int reg1 = kcontrol->private_value & 0xff;
235 int reg2 = (kcontrol->private_value >> 8) & 0xff;
236 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
237 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
238
239 mutex_lock(&ak4531->reg_mutex);
240 ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;
241 ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;
242 ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;
243 ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;
244 mutex_unlock(&ak4531->reg_mutex);
245 return 0;
246}
247
248static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
249{
250 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
251 int reg1 = kcontrol->private_value & 0xff;
252 int reg2 = (kcontrol->private_value >> 8) & 0xff;
253 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
254 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
255 int change;
256 int val1, val2;
257
258 mutex_lock(&ak4531->reg_mutex);
259 val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));
260 val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));
261 val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
262 val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
263 val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
264 val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
265 change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];
266 ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);
267 ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);
268 mutex_unlock(&ak4531->reg_mutex);
269 return change;
270}
271
272static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
273static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
274static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
275
276static struct snd_kcontrol_new snd_ak4531_controls[] __devinitdata = {
277
278AK4531_DOUBLE_TLV("Master Playback Switch", 0,
279 AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
280 db_scale_master),
281AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
282
283AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
284 db_scale_mono),
285AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
286
287AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
288AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
289 db_scale_input),
290AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
291AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
292
293AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
294AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
295 db_scale_input),
296AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
297AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
298
299AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
300AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
301 db_scale_input),
302AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
303AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
304
305AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
306AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
307 db_scale_input),
308AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
309AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
310
311AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
312AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
313 db_scale_input),
314AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
315AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
316
317AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
318AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
319AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
320AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
321
322AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
323AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
324AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
325AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
326
327AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
328AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
329AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
330AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
331
332AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
333AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
334AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
335
336AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
337AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
338};
339
340static int snd_ak4531_free(struct snd_ak4531 *ak4531)
341{
342 if (ak4531) {
343 if (ak4531->private_free)
344 ak4531->private_free(ak4531);
345 kfree(ak4531);
346 }
347 return 0;
348}
349
350static int snd_ak4531_dev_free(struct snd_device *device)
351{
352 struct snd_ak4531 *ak4531 = device->device_data;
353 return snd_ak4531_free(ak4531);
354}
355
356static u8 snd_ak4531_initial_map[0x19 + 1] = {
357 0x9f, /* 00: Master Volume Lch */
358 0x9f, /* 01: Master Volume Rch */
359 0x9f, /* 02: Voice Volume Lch */
360 0x9f, /* 03: Voice Volume Rch */
361 0x9f, /* 04: FM Volume Lch */
362 0x9f, /* 05: FM Volume Rch */
363 0x9f, /* 06: CD Audio Volume Lch */
364 0x9f, /* 07: CD Audio Volume Rch */
365 0x9f, /* 08: Line Volume Lch */
366 0x9f, /* 09: Line Volume Rch */
367 0x9f, /* 0a: Aux Volume Lch */
368 0x9f, /* 0b: Aux Volume Rch */
369 0x9f, /* 0c: Mono1 Volume */
370 0x9f, /* 0d: Mono2 Volume */
371 0x9f, /* 0e: Mic Volume */
372 0x87, /* 0f: Mono-out Volume */
373 0x00, /* 10: Output Mixer SW1 */
374 0x00, /* 11: Output Mixer SW2 */
375 0x00, /* 12: Lch Input Mixer SW1 */
376 0x00, /* 13: Rch Input Mixer SW1 */
377 0x00, /* 14: Lch Input Mixer SW2 */
378 0x00, /* 15: Rch Input Mixer SW2 */
379 0x00, /* 16: Reset & Power Down */
380 0x00, /* 17: Clock Select */
381 0x00, /* 18: AD Input Select */
382 0x01 /* 19: Mic Amp Setup */
383};
384
385int __devinit snd_ak4531_mixer(struct snd_card *card,
386 struct snd_ak4531 *_ak4531,
387 struct snd_ak4531 **rak4531)
388{
389 unsigned int idx;
390 int err;
391 struct snd_ak4531 *ak4531;
392 static struct snd_device_ops ops = {
393 .dev_free = snd_ak4531_dev_free,
394 };
395
396 if (snd_BUG_ON(!card || !_ak4531))
397 return -EINVAL;
398 if (rak4531)
399 *rak4531 = NULL;
400 ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
401 if (ak4531 == NULL)
402 return -ENOMEM;
403 *ak4531 = *_ak4531;
404 mutex_init(&ak4531->reg_mutex);
405 if ((err = snd_component_add(card, "AK4531")) < 0) {
406 snd_ak4531_free(ak4531);
407 return err;
408 }
409 strcpy(card->mixername, "Asahi Kasei AK4531");
410 ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */
411 udelay(100);
412 ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */
413 for (idx = 0; idx <= 0x19; idx++) {
414 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
415 continue;
416 ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */
417 }
418 for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {
419 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531))) < 0) {
420 snd_ak4531_free(ak4531);
421 return err;
422 }
423 }
424 snd_ak4531_proc_init(card, ak4531);
425 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops)) < 0) {
426 snd_ak4531_free(ak4531);
427 return err;
428 }
429
430#if 0
431 snd_ak4531_dump(ak4531);
432#endif
433 if (rak4531)
434 *rak4531 = ak4531;
435 return 0;
436}
437
438/*
439 * power management
440 */
441#ifdef CONFIG_PM
442void snd_ak4531_suspend(struct snd_ak4531 *ak4531)
443{
444 /* mute */
445 ak4531->write(ak4531, AK4531_LMASTER, 0x9f);
446 ak4531->write(ak4531, AK4531_RMASTER, 0x9f);
447 /* powerdown */
448 ak4531->write(ak4531, AK4531_RESET, 0x01);
449}
450
451void snd_ak4531_resume(struct snd_ak4531 *ak4531)
452{
453 int idx;
454
455 /* initialize */
456 ak4531->write(ak4531, AK4531_RESET, 0x03);
457 udelay(100);
458 ak4531->write(ak4531, AK4531_CLOCK, 0x00);
459 /* restore mixer registers */
460 for (idx = 0; idx <= 0x19; idx++) {
461 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
462 continue;
463 ak4531->write(ak4531, idx, ak4531->regs[idx]);
464 }
465}
466#endif
467
468#ifdef CONFIG_PROC_FS
469/*
470 * /proc interface
471 */
472
473static void snd_ak4531_proc_read(struct snd_info_entry *entry,
474 struct snd_info_buffer *buffer)
475{
476 struct snd_ak4531 *ak4531 = entry->private_data;
477
478 snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");
479 snd_iprintf(buffer, "Recording source : %s\n"
480 "MIC gain : %s\n",
481 ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",
482 ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
483}
484
485static void __devinit
486snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
487{
488 struct snd_info_entry *entry;
489
490 if (! snd_card_proc_new(card, "ak4531", &entry))
491 snd_info_set_text_ops(entry, ak4531, snd_ak4531_proc_read);
492}
493#endif
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 * Universal routines for AK4531 codec
5 */
6
7#include <linux/delay.h>
8#include <linux/init.h>
9#include <linux/slab.h>
10#include <linux/mutex.h>
11#include <linux/module.h>
12
13#include <sound/core.h>
14#include <sound/ak4531_codec.h>
15#include <sound/tlv.h>
16
17/*
18MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
19MODULE_DESCRIPTION("Universal routines for AK4531 codec");
20MODULE_LICENSE("GPL");
21*/
22
23static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
24
25/*
26 *
27 */
28
29#if 0
30
31static void snd_ak4531_dump(struct snd_ak4531 *ak4531)
32{
33 int idx;
34
35 for (idx = 0; idx < 0x19; idx++)
36 printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",
37 idx, ak4531->regs[idx]);
38}
39
40#endif
41
42/*
43 *
44 */
45
46#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \
47{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
48 .info = snd_ak4531_info_single, \
49 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
50 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }
51#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
52{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
53 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
54 .name = xname, .index = xindex, \
55 .info = snd_ak4531_info_single, \
56 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
57 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \
58 .tlv = { .p = (xtlv) } }
59
60static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
61{
62 int mask = (kcontrol->private_value >> 24) & 0xff;
63
64 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
65 uinfo->count = 1;
66 uinfo->value.integer.min = 0;
67 uinfo->value.integer.max = mask;
68 return 0;
69}
70
71static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
72{
73 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
74 int reg = kcontrol->private_value & 0xff;
75 int shift = (kcontrol->private_value >> 16) & 0x07;
76 int mask = (kcontrol->private_value >> 24) & 0xff;
77 int invert = (kcontrol->private_value >> 22) & 1;
78 int val;
79
80 mutex_lock(&ak4531->reg_mutex);
81 val = (ak4531->regs[reg] >> shift) & mask;
82 mutex_unlock(&ak4531->reg_mutex);
83 if (invert) {
84 val = mask - val;
85 }
86 ucontrol->value.integer.value[0] = val;
87 return 0;
88}
89
90static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
91{
92 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
93 int reg = kcontrol->private_value & 0xff;
94 int shift = (kcontrol->private_value >> 16) & 0x07;
95 int mask = (kcontrol->private_value >> 24) & 0xff;
96 int invert = (kcontrol->private_value >> 22) & 1;
97 int change;
98 int val;
99
100 val = ucontrol->value.integer.value[0] & mask;
101 if (invert) {
102 val = mask - val;
103 }
104 val <<= shift;
105 mutex_lock(&ak4531->reg_mutex);
106 val = (ak4531->regs[reg] & ~(mask << shift)) | val;
107 change = val != ak4531->regs[reg];
108 ak4531->write(ak4531, reg, ak4531->regs[reg] = val);
109 mutex_unlock(&ak4531->reg_mutex);
110 return change;
111}
112
113#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \
114{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
115 .info = snd_ak4531_info_double, \
116 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
117 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }
118#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \
119{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
120 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
121 .name = xname, .index = xindex, \
122 .info = snd_ak4531_info_double, \
123 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
124 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \
125 .tlv = { .p = (xtlv) } }
126
127static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
128{
129 int mask = (kcontrol->private_value >> 24) & 0xff;
130
131 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
132 uinfo->count = 2;
133 uinfo->value.integer.min = 0;
134 uinfo->value.integer.max = mask;
135 return 0;
136}
137
138static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
139{
140 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
141 int left_reg = kcontrol->private_value & 0xff;
142 int right_reg = (kcontrol->private_value >> 8) & 0xff;
143 int left_shift = (kcontrol->private_value >> 16) & 0x07;
144 int right_shift = (kcontrol->private_value >> 19) & 0x07;
145 int mask = (kcontrol->private_value >> 24) & 0xff;
146 int invert = (kcontrol->private_value >> 22) & 1;
147 int left, right;
148
149 mutex_lock(&ak4531->reg_mutex);
150 left = (ak4531->regs[left_reg] >> left_shift) & mask;
151 right = (ak4531->regs[right_reg] >> right_shift) & mask;
152 mutex_unlock(&ak4531->reg_mutex);
153 if (invert) {
154 left = mask - left;
155 right = mask - right;
156 }
157 ucontrol->value.integer.value[0] = left;
158 ucontrol->value.integer.value[1] = right;
159 return 0;
160}
161
162static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
163{
164 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
165 int left_reg = kcontrol->private_value & 0xff;
166 int right_reg = (kcontrol->private_value >> 8) & 0xff;
167 int left_shift = (kcontrol->private_value >> 16) & 0x07;
168 int right_shift = (kcontrol->private_value >> 19) & 0x07;
169 int mask = (kcontrol->private_value >> 24) & 0xff;
170 int invert = (kcontrol->private_value >> 22) & 1;
171 int change;
172 int left, right;
173
174 left = ucontrol->value.integer.value[0] & mask;
175 right = ucontrol->value.integer.value[1] & mask;
176 if (invert) {
177 left = mask - left;
178 right = mask - right;
179 }
180 left <<= left_shift;
181 right <<= right_shift;
182 mutex_lock(&ak4531->reg_mutex);
183 if (left_reg == right_reg) {
184 left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;
185 change = left != ak4531->regs[left_reg];
186 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
187 } else {
188 left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;
189 right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;
190 change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];
191 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
192 ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);
193 }
194 mutex_unlock(&ak4531->reg_mutex);
195 return change;
196}
197
198#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \
199{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
200 .info = snd_ak4531_info_input_sw, \
201 .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \
202 .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }
203
204static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
205{
206 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
207 uinfo->count = 4;
208 uinfo->value.integer.min = 0;
209 uinfo->value.integer.max = 1;
210 return 0;
211}
212
213static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
214{
215 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
216 int reg1 = kcontrol->private_value & 0xff;
217 int reg2 = (kcontrol->private_value >> 8) & 0xff;
218 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
219 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
220
221 mutex_lock(&ak4531->reg_mutex);
222 ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;
223 ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;
224 ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;
225 ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;
226 mutex_unlock(&ak4531->reg_mutex);
227 return 0;
228}
229
230static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
231{
232 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
233 int reg1 = kcontrol->private_value & 0xff;
234 int reg2 = (kcontrol->private_value >> 8) & 0xff;
235 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
236 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
237 int change;
238 int val1, val2;
239
240 mutex_lock(&ak4531->reg_mutex);
241 val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));
242 val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));
243 val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
244 val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
245 val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
246 val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
247 change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];
248 ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);
249 ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);
250 mutex_unlock(&ak4531->reg_mutex);
251 return change;
252}
253
254static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
255static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
256static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
257
258static const struct snd_kcontrol_new snd_ak4531_controls[] = {
259
260AK4531_DOUBLE_TLV("Master Playback Switch", 0,
261 AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
262 db_scale_master),
263AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
264
265AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
266 db_scale_mono),
267AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
268
269AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
270AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
271 db_scale_input),
272AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
273AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
274
275AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
276AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
277 db_scale_input),
278AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
279AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
280
281AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
282AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
283 db_scale_input),
284AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
285AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
286
287AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
288AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
289 db_scale_input),
290AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
291AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
292
293AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
294AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
295 db_scale_input),
296AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
297AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
298
299AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
300AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
301AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
302AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
303
304AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
305AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
306AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
307AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
308
309AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
310AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
311AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
312AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
313
314AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
315AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
316AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
317
318AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
319AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
320};
321
322static int snd_ak4531_free(struct snd_ak4531 *ak4531)
323{
324 if (ak4531) {
325 if (ak4531->private_free)
326 ak4531->private_free(ak4531);
327 kfree(ak4531);
328 }
329 return 0;
330}
331
332static int snd_ak4531_dev_free(struct snd_device *device)
333{
334 struct snd_ak4531 *ak4531 = device->device_data;
335 return snd_ak4531_free(ak4531);
336}
337
338static const u8 snd_ak4531_initial_map[0x19 + 1] = {
339 0x9f, /* 00: Master Volume Lch */
340 0x9f, /* 01: Master Volume Rch */
341 0x9f, /* 02: Voice Volume Lch */
342 0x9f, /* 03: Voice Volume Rch */
343 0x9f, /* 04: FM Volume Lch */
344 0x9f, /* 05: FM Volume Rch */
345 0x9f, /* 06: CD Audio Volume Lch */
346 0x9f, /* 07: CD Audio Volume Rch */
347 0x9f, /* 08: Line Volume Lch */
348 0x9f, /* 09: Line Volume Rch */
349 0x9f, /* 0a: Aux Volume Lch */
350 0x9f, /* 0b: Aux Volume Rch */
351 0x9f, /* 0c: Mono1 Volume */
352 0x9f, /* 0d: Mono2 Volume */
353 0x9f, /* 0e: Mic Volume */
354 0x87, /* 0f: Mono-out Volume */
355 0x00, /* 10: Output Mixer SW1 */
356 0x00, /* 11: Output Mixer SW2 */
357 0x00, /* 12: Lch Input Mixer SW1 */
358 0x00, /* 13: Rch Input Mixer SW1 */
359 0x00, /* 14: Lch Input Mixer SW2 */
360 0x00, /* 15: Rch Input Mixer SW2 */
361 0x00, /* 16: Reset & Power Down */
362 0x00, /* 17: Clock Select */
363 0x00, /* 18: AD Input Select */
364 0x01 /* 19: Mic Amp Setup */
365};
366
367int snd_ak4531_mixer(struct snd_card *card,
368 struct snd_ak4531 *_ak4531,
369 struct snd_ak4531 **rak4531)
370{
371 unsigned int idx;
372 int err;
373 struct snd_ak4531 *ak4531;
374 static const struct snd_device_ops ops = {
375 .dev_free = snd_ak4531_dev_free,
376 };
377
378 if (snd_BUG_ON(!card || !_ak4531))
379 return -EINVAL;
380 if (rak4531)
381 *rak4531 = NULL;
382 ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
383 if (ak4531 == NULL)
384 return -ENOMEM;
385 *ak4531 = *_ak4531;
386 mutex_init(&ak4531->reg_mutex);
387 err = snd_component_add(card, "AK4531");
388 if (err < 0) {
389 snd_ak4531_free(ak4531);
390 return err;
391 }
392 strcpy(card->mixername, "Asahi Kasei AK4531");
393 ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */
394 udelay(100);
395 ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */
396 for (idx = 0; idx <= 0x19; idx++) {
397 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
398 continue;
399 ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */
400 }
401 for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {
402 err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531));
403 if (err < 0) {
404 snd_ak4531_free(ak4531);
405 return err;
406 }
407 }
408 snd_ak4531_proc_init(card, ak4531);
409 err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops);
410 if (err < 0) {
411 snd_ak4531_free(ak4531);
412 return err;
413 }
414
415#if 0
416 snd_ak4531_dump(ak4531);
417#endif
418 if (rak4531)
419 *rak4531 = ak4531;
420 return 0;
421}
422
423/*
424 * power management
425 */
426#ifdef CONFIG_PM
427void snd_ak4531_suspend(struct snd_ak4531 *ak4531)
428{
429 /* mute */
430 ak4531->write(ak4531, AK4531_LMASTER, 0x9f);
431 ak4531->write(ak4531, AK4531_RMASTER, 0x9f);
432 /* powerdown */
433 ak4531->write(ak4531, AK4531_RESET, 0x01);
434}
435
436void snd_ak4531_resume(struct snd_ak4531 *ak4531)
437{
438 int idx;
439
440 /* initialize */
441 ak4531->write(ak4531, AK4531_RESET, 0x03);
442 udelay(100);
443 ak4531->write(ak4531, AK4531_CLOCK, 0x00);
444 /* restore mixer registers */
445 for (idx = 0; idx <= 0x19; idx++) {
446 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
447 continue;
448 ak4531->write(ak4531, idx, ak4531->regs[idx]);
449 }
450}
451#endif
452
453/*
454 * /proc interface
455 */
456
457static void snd_ak4531_proc_read(struct snd_info_entry *entry,
458 struct snd_info_buffer *buffer)
459{
460 struct snd_ak4531 *ak4531 = entry->private_data;
461
462 snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");
463 snd_iprintf(buffer, "Recording source : %s\n"
464 "MIC gain : %s\n",
465 ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",
466 ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
467}
468
469static void
470snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
471{
472 snd_card_ro_proc_new(card, "ak4531", ak4531, snd_ak4531_proc_read);
473}