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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#include <linux/module.h>
27
28#include <sound/core.h>
29#include <sound/ak4531_codec.h>
30#include <sound/tlv.h>
31
32/*
33MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
34MODULE_DESCRIPTION("Universal routines for AK4531 codec");
35MODULE_LICENSE("GPL");
36*/
37
38#ifdef CONFIG_PROC_FS
39static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
40#else
41#define snd_ak4531_proc_init(card,ak)
42#endif
43
44/*
45 *
46 */
47
48#if 0
49
50static void snd_ak4531_dump(struct snd_ak4531 *ak4531)
51{
52 int idx;
53
54 for (idx = 0; idx < 0x19; idx++)
55 printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",
56 idx, ak4531->regs[idx]);
57}
58
59#endif
60
61/*
62 *
63 */
64
65#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \
66{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
67 .info = snd_ak4531_info_single, \
68 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
69 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }
70#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
71{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
72 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
73 .name = xname, .index = xindex, \
74 .info = snd_ak4531_info_single, \
75 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
76 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \
77 .tlv = { .p = (xtlv) } }
78
79static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
80{
81 int mask = (kcontrol->private_value >> 24) & 0xff;
82
83 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
84 uinfo->count = 1;
85 uinfo->value.integer.min = 0;
86 uinfo->value.integer.max = mask;
87 return 0;
88}
89
90static int snd_ak4531_get_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 val;
98
99 mutex_lock(&ak4531->reg_mutex);
100 val = (ak4531->regs[reg] >> shift) & mask;
101 mutex_unlock(&ak4531->reg_mutex);
102 if (invert) {
103 val = mask - val;
104 }
105 ucontrol->value.integer.value[0] = val;
106 return 0;
107}
108
109static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
110{
111 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
112 int reg = kcontrol->private_value & 0xff;
113 int shift = (kcontrol->private_value >> 16) & 0x07;
114 int mask = (kcontrol->private_value >> 24) & 0xff;
115 int invert = (kcontrol->private_value >> 22) & 1;
116 int change;
117 int val;
118
119 val = ucontrol->value.integer.value[0] & mask;
120 if (invert) {
121 val = mask - val;
122 }
123 val <<= shift;
124 mutex_lock(&ak4531->reg_mutex);
125 val = (ak4531->regs[reg] & ~(mask << shift)) | val;
126 change = val != ak4531->regs[reg];
127 ak4531->write(ak4531, reg, ak4531->regs[reg] = val);
128 mutex_unlock(&ak4531->reg_mutex);
129 return change;
130}
131
132#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \
133{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
134 .info = snd_ak4531_info_double, \
135 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
136 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }
137#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \
138{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
139 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
140 .name = xname, .index = xindex, \
141 .info = snd_ak4531_info_double, \
142 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
143 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \
144 .tlv = { .p = (xtlv) } }
145
146static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
147{
148 int mask = (kcontrol->private_value >> 24) & 0xff;
149
150 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
151 uinfo->count = 2;
152 uinfo->value.integer.min = 0;
153 uinfo->value.integer.max = mask;
154 return 0;
155}
156
157static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
158{
159 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
160 int left_reg = kcontrol->private_value & 0xff;
161 int right_reg = (kcontrol->private_value >> 8) & 0xff;
162 int left_shift = (kcontrol->private_value >> 16) & 0x07;
163 int right_shift = (kcontrol->private_value >> 19) & 0x07;
164 int mask = (kcontrol->private_value >> 24) & 0xff;
165 int invert = (kcontrol->private_value >> 22) & 1;
166 int left, right;
167
168 mutex_lock(&ak4531->reg_mutex);
169 left = (ak4531->regs[left_reg] >> left_shift) & mask;
170 right = (ak4531->regs[right_reg] >> right_shift) & mask;
171 mutex_unlock(&ak4531->reg_mutex);
172 if (invert) {
173 left = mask - left;
174 right = mask - right;
175 }
176 ucontrol->value.integer.value[0] = left;
177 ucontrol->value.integer.value[1] = right;
178 return 0;
179}
180
181static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
182{
183 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
184 int left_reg = kcontrol->private_value & 0xff;
185 int right_reg = (kcontrol->private_value >> 8) & 0xff;
186 int left_shift = (kcontrol->private_value >> 16) & 0x07;
187 int right_shift = (kcontrol->private_value >> 19) & 0x07;
188 int mask = (kcontrol->private_value >> 24) & 0xff;
189 int invert = (kcontrol->private_value >> 22) & 1;
190 int change;
191 int left, right;
192
193 left = ucontrol->value.integer.value[0] & mask;
194 right = ucontrol->value.integer.value[1] & mask;
195 if (invert) {
196 left = mask - left;
197 right = mask - right;
198 }
199 left <<= left_shift;
200 right <<= right_shift;
201 mutex_lock(&ak4531->reg_mutex);
202 if (left_reg == right_reg) {
203 left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;
204 change = left != ak4531->regs[left_reg];
205 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
206 } else {
207 left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;
208 right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;
209 change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];
210 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
211 ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);
212 }
213 mutex_unlock(&ak4531->reg_mutex);
214 return change;
215}
216
217#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \
218{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
219 .info = snd_ak4531_info_input_sw, \
220 .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \
221 .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }
222
223static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
224{
225 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
226 uinfo->count = 4;
227 uinfo->value.integer.min = 0;
228 uinfo->value.integer.max = 1;
229 return 0;
230}
231
232static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
233{
234 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
235 int reg1 = kcontrol->private_value & 0xff;
236 int reg2 = (kcontrol->private_value >> 8) & 0xff;
237 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
238 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
239
240 mutex_lock(&ak4531->reg_mutex);
241 ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;
242 ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;
243 ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;
244 ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;
245 mutex_unlock(&ak4531->reg_mutex);
246 return 0;
247}
248
249static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
250{
251 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
252 int reg1 = kcontrol->private_value & 0xff;
253 int reg2 = (kcontrol->private_value >> 8) & 0xff;
254 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
255 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
256 int change;
257 int val1, val2;
258
259 mutex_lock(&ak4531->reg_mutex);
260 val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));
261 val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));
262 val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
263 val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
264 val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
265 val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
266 change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];
267 ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);
268 ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);
269 mutex_unlock(&ak4531->reg_mutex);
270 return change;
271}
272
273static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
274static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
275static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
276
277static struct snd_kcontrol_new snd_ak4531_controls[] = {
278
279AK4531_DOUBLE_TLV("Master Playback Switch", 0,
280 AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
281 db_scale_master),
282AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
283
284AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
285 db_scale_mono),
286AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
287
288AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
289AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
290 db_scale_input),
291AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
292AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
293
294AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
295AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
296 db_scale_input),
297AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
298AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
299
300AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
301AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
302 db_scale_input),
303AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
304AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
305
306AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
307AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
308 db_scale_input),
309AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
310AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
311
312AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
313AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
314 db_scale_input),
315AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
316AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
317
318AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
319AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
320AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
321AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
322
323AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
324AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
325AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
326AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
327
328AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
329AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
330AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
331AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
332
333AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
334AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
335AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
336
337AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
338AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
339};
340
341static int snd_ak4531_free(struct snd_ak4531 *ak4531)
342{
343 if (ak4531) {
344 if (ak4531->private_free)
345 ak4531->private_free(ak4531);
346 kfree(ak4531);
347 }
348 return 0;
349}
350
351static int snd_ak4531_dev_free(struct snd_device *device)
352{
353 struct snd_ak4531 *ak4531 = device->device_data;
354 return snd_ak4531_free(ak4531);
355}
356
357static u8 snd_ak4531_initial_map[0x19 + 1] = {
358 0x9f, /* 00: Master Volume Lch */
359 0x9f, /* 01: Master Volume Rch */
360 0x9f, /* 02: Voice Volume Lch */
361 0x9f, /* 03: Voice Volume Rch */
362 0x9f, /* 04: FM Volume Lch */
363 0x9f, /* 05: FM Volume Rch */
364 0x9f, /* 06: CD Audio Volume Lch */
365 0x9f, /* 07: CD Audio Volume Rch */
366 0x9f, /* 08: Line Volume Lch */
367 0x9f, /* 09: Line Volume Rch */
368 0x9f, /* 0a: Aux Volume Lch */
369 0x9f, /* 0b: Aux Volume Rch */
370 0x9f, /* 0c: Mono1 Volume */
371 0x9f, /* 0d: Mono2 Volume */
372 0x9f, /* 0e: Mic Volume */
373 0x87, /* 0f: Mono-out Volume */
374 0x00, /* 10: Output Mixer SW1 */
375 0x00, /* 11: Output Mixer SW2 */
376 0x00, /* 12: Lch Input Mixer SW1 */
377 0x00, /* 13: Rch Input Mixer SW1 */
378 0x00, /* 14: Lch Input Mixer SW2 */
379 0x00, /* 15: Rch Input Mixer SW2 */
380 0x00, /* 16: Reset & Power Down */
381 0x00, /* 17: Clock Select */
382 0x00, /* 18: AD Input Select */
383 0x01 /* 19: Mic Amp Setup */
384};
385
386int snd_ak4531_mixer(struct snd_card *card,
387 struct snd_ak4531 *_ak4531,
388 struct snd_ak4531 **rak4531)
389{
390 unsigned int idx;
391 int err;
392 struct snd_ak4531 *ak4531;
393 static struct snd_device_ops ops = {
394 .dev_free = snd_ak4531_dev_free,
395 };
396
397 if (snd_BUG_ON(!card || !_ak4531))
398 return -EINVAL;
399 if (rak4531)
400 *rak4531 = NULL;
401 ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
402 if (ak4531 == NULL)
403 return -ENOMEM;
404 *ak4531 = *_ak4531;
405 mutex_init(&ak4531->reg_mutex);
406 if ((err = snd_component_add(card, "AK4531")) < 0) {
407 snd_ak4531_free(ak4531);
408 return err;
409 }
410 strcpy(card->mixername, "Asahi Kasei AK4531");
411 ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */
412 udelay(100);
413 ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */
414 for (idx = 0; idx <= 0x19; idx++) {
415 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
416 continue;
417 ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */
418 }
419 for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {
420 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531))) < 0) {
421 snd_ak4531_free(ak4531);
422 return err;
423 }
424 }
425 snd_ak4531_proc_init(card, ak4531);
426 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops)) < 0) {
427 snd_ak4531_free(ak4531);
428 return err;
429 }
430
431#if 0
432 snd_ak4531_dump(ak4531);
433#endif
434 if (rak4531)
435 *rak4531 = ak4531;
436 return 0;
437}
438
439/*
440 * power management
441 */
442#ifdef CONFIG_PM
443void snd_ak4531_suspend(struct snd_ak4531 *ak4531)
444{
445 /* mute */
446 ak4531->write(ak4531, AK4531_LMASTER, 0x9f);
447 ak4531->write(ak4531, AK4531_RMASTER, 0x9f);
448 /* powerdown */
449 ak4531->write(ak4531, AK4531_RESET, 0x01);
450}
451
452void snd_ak4531_resume(struct snd_ak4531 *ak4531)
453{
454 int idx;
455
456 /* initialize */
457 ak4531->write(ak4531, AK4531_RESET, 0x03);
458 udelay(100);
459 ak4531->write(ak4531, AK4531_CLOCK, 0x00);
460 /* restore mixer registers */
461 for (idx = 0; idx <= 0x19; idx++) {
462 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
463 continue;
464 ak4531->write(ak4531, idx, ak4531->regs[idx]);
465 }
466}
467#endif
468
469#ifdef CONFIG_PROC_FS
470/*
471 * /proc interface
472 */
473
474static void snd_ak4531_proc_read(struct snd_info_entry *entry,
475 struct snd_info_buffer *buffer)
476{
477 struct snd_ak4531 *ak4531 = entry->private_data;
478
479 snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");
480 snd_iprintf(buffer, "Recording source : %s\n"
481 "MIC gain : %s\n",
482 ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",
483 ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
484}
485
486static void
487snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
488{
489 struct snd_info_entry *entry;
490
491 if (! snd_card_proc_new(card, "ak4531", &entry))
492 snd_info_set_text_ops(entry, ak4531, snd_ak4531_proc_read);
493}
494#endif
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#include <linux/module.h>
27
28#include <sound/core.h>
29#include <sound/ak4531_codec.h>
30#include <sound/tlv.h>
31
32/*
33MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
34MODULE_DESCRIPTION("Universal routines for AK4531 codec");
35MODULE_LICENSE("GPL");
36*/
37
38static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
39
40/*
41 *
42 */
43
44#if 0
45
46static void snd_ak4531_dump(struct snd_ak4531 *ak4531)
47{
48 int idx;
49
50 for (idx = 0; idx < 0x19; idx++)
51 printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",
52 idx, ak4531->regs[idx]);
53}
54
55#endif
56
57/*
58 *
59 */
60
61#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \
62{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
63 .info = snd_ak4531_info_single, \
64 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
65 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }
66#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
67{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
68 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
69 .name = xname, .index = xindex, \
70 .info = snd_ak4531_info_single, \
71 .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
72 .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \
73 .tlv = { .p = (xtlv) } }
74
75static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
76{
77 int mask = (kcontrol->private_value >> 24) & 0xff;
78
79 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
80 uinfo->count = 1;
81 uinfo->value.integer.min = 0;
82 uinfo->value.integer.max = mask;
83 return 0;
84}
85
86static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
87{
88 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
89 int reg = kcontrol->private_value & 0xff;
90 int shift = (kcontrol->private_value >> 16) & 0x07;
91 int mask = (kcontrol->private_value >> 24) & 0xff;
92 int invert = (kcontrol->private_value >> 22) & 1;
93 int val;
94
95 mutex_lock(&ak4531->reg_mutex);
96 val = (ak4531->regs[reg] >> shift) & mask;
97 mutex_unlock(&ak4531->reg_mutex);
98 if (invert) {
99 val = mask - val;
100 }
101 ucontrol->value.integer.value[0] = val;
102 return 0;
103}
104
105static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
106{
107 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
108 int reg = kcontrol->private_value & 0xff;
109 int shift = (kcontrol->private_value >> 16) & 0x07;
110 int mask = (kcontrol->private_value >> 24) & 0xff;
111 int invert = (kcontrol->private_value >> 22) & 1;
112 int change;
113 int val;
114
115 val = ucontrol->value.integer.value[0] & mask;
116 if (invert) {
117 val = mask - val;
118 }
119 val <<= shift;
120 mutex_lock(&ak4531->reg_mutex);
121 val = (ak4531->regs[reg] & ~(mask << shift)) | val;
122 change = val != ak4531->regs[reg];
123 ak4531->write(ak4531, reg, ak4531->regs[reg] = val);
124 mutex_unlock(&ak4531->reg_mutex);
125 return change;
126}
127
128#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \
129{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
130 .info = snd_ak4531_info_double, \
131 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
132 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }
133#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \
134{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
135 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
136 .name = xname, .index = xindex, \
137 .info = snd_ak4531_info_double, \
138 .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
139 .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \
140 .tlv = { .p = (xtlv) } }
141
142static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
143{
144 int mask = (kcontrol->private_value >> 24) & 0xff;
145
146 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
147 uinfo->count = 2;
148 uinfo->value.integer.min = 0;
149 uinfo->value.integer.max = mask;
150 return 0;
151}
152
153static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
154{
155 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
156 int left_reg = kcontrol->private_value & 0xff;
157 int right_reg = (kcontrol->private_value >> 8) & 0xff;
158 int left_shift = (kcontrol->private_value >> 16) & 0x07;
159 int right_shift = (kcontrol->private_value >> 19) & 0x07;
160 int mask = (kcontrol->private_value >> 24) & 0xff;
161 int invert = (kcontrol->private_value >> 22) & 1;
162 int left, right;
163
164 mutex_lock(&ak4531->reg_mutex);
165 left = (ak4531->regs[left_reg] >> left_shift) & mask;
166 right = (ak4531->regs[right_reg] >> right_shift) & mask;
167 mutex_unlock(&ak4531->reg_mutex);
168 if (invert) {
169 left = mask - left;
170 right = mask - right;
171 }
172 ucontrol->value.integer.value[0] = left;
173 ucontrol->value.integer.value[1] = right;
174 return 0;
175}
176
177static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
178{
179 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
180 int left_reg = kcontrol->private_value & 0xff;
181 int right_reg = (kcontrol->private_value >> 8) & 0xff;
182 int left_shift = (kcontrol->private_value >> 16) & 0x07;
183 int right_shift = (kcontrol->private_value >> 19) & 0x07;
184 int mask = (kcontrol->private_value >> 24) & 0xff;
185 int invert = (kcontrol->private_value >> 22) & 1;
186 int change;
187 int left, right;
188
189 left = ucontrol->value.integer.value[0] & mask;
190 right = ucontrol->value.integer.value[1] & mask;
191 if (invert) {
192 left = mask - left;
193 right = mask - right;
194 }
195 left <<= left_shift;
196 right <<= right_shift;
197 mutex_lock(&ak4531->reg_mutex);
198 if (left_reg == right_reg) {
199 left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;
200 change = left != ak4531->regs[left_reg];
201 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
202 } else {
203 left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;
204 right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;
205 change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];
206 ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
207 ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);
208 }
209 mutex_unlock(&ak4531->reg_mutex);
210 return change;
211}
212
213#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \
214{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
215 .info = snd_ak4531_info_input_sw, \
216 .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \
217 .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }
218
219static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
220{
221 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
222 uinfo->count = 4;
223 uinfo->value.integer.min = 0;
224 uinfo->value.integer.max = 1;
225 return 0;
226}
227
228static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
229{
230 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
231 int reg1 = kcontrol->private_value & 0xff;
232 int reg2 = (kcontrol->private_value >> 8) & 0xff;
233 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
234 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
235
236 mutex_lock(&ak4531->reg_mutex);
237 ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;
238 ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;
239 ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;
240 ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;
241 mutex_unlock(&ak4531->reg_mutex);
242 return 0;
243}
244
245static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
246{
247 struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
248 int reg1 = kcontrol->private_value & 0xff;
249 int reg2 = (kcontrol->private_value >> 8) & 0xff;
250 int left_shift = (kcontrol->private_value >> 16) & 0x0f;
251 int right_shift = (kcontrol->private_value >> 24) & 0x0f;
252 int change;
253 int val1, val2;
254
255 mutex_lock(&ak4531->reg_mutex);
256 val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));
257 val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));
258 val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
259 val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
260 val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
261 val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
262 change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];
263 ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);
264 ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);
265 mutex_unlock(&ak4531->reg_mutex);
266 return change;
267}
268
269static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
270static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
271static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
272
273static struct snd_kcontrol_new snd_ak4531_controls[] = {
274
275AK4531_DOUBLE_TLV("Master Playback Switch", 0,
276 AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
277 db_scale_master),
278AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
279
280AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
281 db_scale_mono),
282AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
283
284AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
285AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
286 db_scale_input),
287AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
288AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
289
290AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
291AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
292 db_scale_input),
293AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
294AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
295
296AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
297AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
298 db_scale_input),
299AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
300AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
301
302AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
303AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
304 db_scale_input),
305AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
306AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
307
308AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
309AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
310 db_scale_input),
311AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
312AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
313
314AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
315AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
316AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
317AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
318
319AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
320AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
321AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
322AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
323
324AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
325AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
326AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
327AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
328
329AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
330AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
331AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
332
333AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
334AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
335};
336
337static int snd_ak4531_free(struct snd_ak4531 *ak4531)
338{
339 if (ak4531) {
340 if (ak4531->private_free)
341 ak4531->private_free(ak4531);
342 kfree(ak4531);
343 }
344 return 0;
345}
346
347static int snd_ak4531_dev_free(struct snd_device *device)
348{
349 struct snd_ak4531 *ak4531 = device->device_data;
350 return snd_ak4531_free(ak4531);
351}
352
353static u8 snd_ak4531_initial_map[0x19 + 1] = {
354 0x9f, /* 00: Master Volume Lch */
355 0x9f, /* 01: Master Volume Rch */
356 0x9f, /* 02: Voice Volume Lch */
357 0x9f, /* 03: Voice Volume Rch */
358 0x9f, /* 04: FM Volume Lch */
359 0x9f, /* 05: FM Volume Rch */
360 0x9f, /* 06: CD Audio Volume Lch */
361 0x9f, /* 07: CD Audio Volume Rch */
362 0x9f, /* 08: Line Volume Lch */
363 0x9f, /* 09: Line Volume Rch */
364 0x9f, /* 0a: Aux Volume Lch */
365 0x9f, /* 0b: Aux Volume Rch */
366 0x9f, /* 0c: Mono1 Volume */
367 0x9f, /* 0d: Mono2 Volume */
368 0x9f, /* 0e: Mic Volume */
369 0x87, /* 0f: Mono-out Volume */
370 0x00, /* 10: Output Mixer SW1 */
371 0x00, /* 11: Output Mixer SW2 */
372 0x00, /* 12: Lch Input Mixer SW1 */
373 0x00, /* 13: Rch Input Mixer SW1 */
374 0x00, /* 14: Lch Input Mixer SW2 */
375 0x00, /* 15: Rch Input Mixer SW2 */
376 0x00, /* 16: Reset & Power Down */
377 0x00, /* 17: Clock Select */
378 0x00, /* 18: AD Input Select */
379 0x01 /* 19: Mic Amp Setup */
380};
381
382int snd_ak4531_mixer(struct snd_card *card,
383 struct snd_ak4531 *_ak4531,
384 struct snd_ak4531 **rak4531)
385{
386 unsigned int idx;
387 int err;
388 struct snd_ak4531 *ak4531;
389 static struct snd_device_ops ops = {
390 .dev_free = snd_ak4531_dev_free,
391 };
392
393 if (snd_BUG_ON(!card || !_ak4531))
394 return -EINVAL;
395 if (rak4531)
396 *rak4531 = NULL;
397 ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
398 if (ak4531 == NULL)
399 return -ENOMEM;
400 *ak4531 = *_ak4531;
401 mutex_init(&ak4531->reg_mutex);
402 if ((err = snd_component_add(card, "AK4531")) < 0) {
403 snd_ak4531_free(ak4531);
404 return err;
405 }
406 strcpy(card->mixername, "Asahi Kasei AK4531");
407 ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */
408 udelay(100);
409 ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */
410 for (idx = 0; idx <= 0x19; idx++) {
411 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
412 continue;
413 ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */
414 }
415 for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {
416 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531))) < 0) {
417 snd_ak4531_free(ak4531);
418 return err;
419 }
420 }
421 snd_ak4531_proc_init(card, ak4531);
422 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops)) < 0) {
423 snd_ak4531_free(ak4531);
424 return err;
425 }
426
427#if 0
428 snd_ak4531_dump(ak4531);
429#endif
430 if (rak4531)
431 *rak4531 = ak4531;
432 return 0;
433}
434
435/*
436 * power management
437 */
438#ifdef CONFIG_PM
439void snd_ak4531_suspend(struct snd_ak4531 *ak4531)
440{
441 /* mute */
442 ak4531->write(ak4531, AK4531_LMASTER, 0x9f);
443 ak4531->write(ak4531, AK4531_RMASTER, 0x9f);
444 /* powerdown */
445 ak4531->write(ak4531, AK4531_RESET, 0x01);
446}
447
448void snd_ak4531_resume(struct snd_ak4531 *ak4531)
449{
450 int idx;
451
452 /* initialize */
453 ak4531->write(ak4531, AK4531_RESET, 0x03);
454 udelay(100);
455 ak4531->write(ak4531, AK4531_CLOCK, 0x00);
456 /* restore mixer registers */
457 for (idx = 0; idx <= 0x19; idx++) {
458 if (idx == AK4531_RESET || idx == AK4531_CLOCK)
459 continue;
460 ak4531->write(ak4531, idx, ak4531->regs[idx]);
461 }
462}
463#endif
464
465/*
466 * /proc interface
467 */
468
469static void snd_ak4531_proc_read(struct snd_info_entry *entry,
470 struct snd_info_buffer *buffer)
471{
472 struct snd_ak4531 *ak4531 = entry->private_data;
473
474 snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");
475 snd_iprintf(buffer, "Recording source : %s\n"
476 "MIC gain : %s\n",
477 ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",
478 ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
479}
480
481static void
482snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
483{
484 struct snd_info_entry *entry;
485
486 if (! snd_card_proc_new(card, "ak4531", &entry))
487 snd_info_set_text_ops(entry, ak4531, snd_ak4531_proc_read);
488}