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 /*
33 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
34 MODULE_DESCRIPTION("Universal routines for AK4531 codec");
35 MODULE_LICENSE("GPL");
36 */
37
38 static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
39
40 /*
41 *
42 */
43
44 #if 0
45
46 static 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
snd_ak4531_info_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)75 static 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
snd_ak4531_get_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)86 static 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
snd_ak4531_put_single(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)105 static 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
snd_ak4531_info_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)142 static 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
snd_ak4531_get_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)153 static 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
snd_ak4531_put_double(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)177 static 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
snd_ak4531_info_input_sw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)219 static 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
snd_ak4531_get_input_sw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)228 static 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
snd_ak4531_put_input_sw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)245 static 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
269 static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
270 static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
271 static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
272
273 static struct snd_kcontrol_new snd_ak4531_controls[] = {
274
275 AK4531_DOUBLE_TLV("Master Playback Switch", 0,
276 AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
277 db_scale_master),
278 AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
279
280 AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
281 db_scale_mono),
282 AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
283
284 AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
285 AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
286 db_scale_input),
287 AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
288 AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
289
290 AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
291 AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
292 db_scale_input),
293 AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
294 AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
295
296 AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
297 AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
298 db_scale_input),
299 AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
300 AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
301
302 AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
303 AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
304 db_scale_input),
305 AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
306 AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
307
308 AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
309 AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
310 db_scale_input),
311 AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
312 AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
313
314 AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
315 AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
316 AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
317 AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
318
319 AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
320 AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
321 AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
322 AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
323
324 AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
325 AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
326 AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
327 AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
328
329 AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
330 AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
331 AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
332
333 AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
334 AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
335 };
336
snd_ak4531_free(struct snd_ak4531 * ak4531)337 static 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
snd_ak4531_dev_free(struct snd_device * device)347 static 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
353 static 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
snd_ak4531_mixer(struct snd_card * card,struct snd_ak4531 * _ak4531,struct snd_ak4531 ** rak4531)382 int 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
snd_ak4531_suspend(struct snd_ak4531 * ak4531)439 void 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
snd_ak4531_resume(struct snd_ak4531 * ak4531)448 void 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
snd_ak4531_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)469 static 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
481 static void
snd_ak4531_proc_init(struct snd_card * card,struct snd_ak4531 * ak4531)482 snd_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 }
489
