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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / soc / codecs / ad1980.c
CommitLineData
5f57dc8b
CC		 1/*
2 * ad1980.c -- ALSA Soc AD1980 codec support
3 *
4 * Copyright: Analog Device Inc.
5 * Author: Roy Huang <roy.huang@analog.com>
6 * Cliff Cai <cliff.cai@analog.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14#include <linux/init.h>
15#include <linux/module.h>
5f57dc8b
CC		 16#include <linux/kernel.h>
17#include <linux/device.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/ac97_codec.h>
21#include <sound/initval.h>
22#include <sound/soc.h>
23#include <sound/soc-dapm.h>
24
25#include "ad1980.h"
26
27static unsigned int ac97_read(struct snd_soc_codec *codec,
28 unsigned int reg);
29static int ac97_write(struct snd_soc_codec *codec,
30 unsigned int reg, unsigned int val);
31
32/*
33 * AD1980 register cache
34 */
35static const u16 ad1980_reg[] = {
36 0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */
37 0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */
38 0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
39 0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
40 0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
41 0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
42 0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
43 0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
44 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
45 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
46 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
47 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
48 0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
49 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
50 0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
51 0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */
52};
53
54static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
55 "Stereo Mix", "Mono Mix", "Phone"};
56
57static const struct soc_enum ad1980_cap_src =
58 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
59
60static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
61SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
62SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
63
64SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
65SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
66
67SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
68SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
69
70SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
71SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
72
73SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
74SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
75
76SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
77SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
78
79SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
80SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
81
82SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
83SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
84
85SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
86SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
87
9905ed35
CC		 88SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
89SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
90
5f57dc8b
CC		 91SOC_ENUM("Capture Source", ad1980_cap_src),
92
93SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
94};
95
96/* add non dapm controls */
97static int ad1980_add_controls(struct snd_soc_codec *codec)
98{
99 int err, i;
100
101 for (i = 0; i < ARRAY_SIZE(ad1980_snd_ac97_controls); i++) {
102 err = snd_ctl_add(codec->card, snd_soc_cnew(
103 &ad1980_snd_ac97_controls[i], codec, NULL));
104 if (err < 0)
105 return err;
106 }
107 return 0;
108}
109
110static unsigned int ac97_read(struct snd_soc_codec *codec,
111 unsigned int reg)
112{
113 u16 *cache = codec->reg_cache;
114
115 switch (reg) {
116 case AC97_RESET:
117 case AC97_INT_PAGING:
118 case AC97_POWERDOWN:
119 case AC97_EXTENDED_STATUS:
120 case AC97_VENDOR_ID1:
121 case AC97_VENDOR_ID2:
122 return soc_ac97_ops.read(codec->ac97, reg);
123 default:
124 reg = reg >> 1;
125
126 if (reg >= (ARRAY_SIZE(ad1980_reg)))
127 return -EINVAL;
128
129 return cache[reg];
130 }
131}
132
133static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
134 unsigned int val)
135{
136 u16 *cache = codec->reg_cache;
137
138 soc_ac97_ops.write(codec->ac97, reg, val);
139 reg = reg >> 1;
140 if (reg < (ARRAY_SIZE(ad1980_reg)))
141 cache[reg] = val;
142
143 return 0;
144}
145
b1cd9b24 146struct snd_soc_dai ad1980_dai = {
5f57dc8b 147 .name = "AC97",
67c91513 148 .ac97_control = 1,
5f57dc8b
CC		 149 .playback = {
150 .stream_name = "Playback",
151 .channels_min = 2,
9905ed35 152 .channels_max = 6,
5f57dc8b
CC		 153 .rates = SNDRV_PCM_RATE_48000,
154 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
155 .capture = {
156 .stream_name = "Capture",
157 .channels_min = 2,
158 .channels_max = 2,
159 .rates = SNDRV_PCM_RATE_48000,
160 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
161};
162EXPORT_SYMBOL_GPL(ad1980_dai);
163
164static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
165{
166 u16 retry_cnt = 0;
167
168retry:
169 if (try_warm && soc_ac97_ops.warm_reset) {
170 soc_ac97_ops.warm_reset(codec->ac97);
171 if (ac97_read(codec, AC97_RESET) == 0x0090)
172 return 1;
173 }
174
175 soc_ac97_ops.reset(codec->ac97);
176 /* Set bit 16slot in register 74h, then every slot will has only 16
177 * bits. This command is sent out in 20bit mode, in which case the
178 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
179 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
180
181 if (ac97_read(codec, AC97_RESET) != 0x0090)
182 goto err;
183 return 0;
184
185err:
186 while (retry_cnt++ < 10)
187 goto retry;
188
189 printk(KERN_ERR "AD1980 AC97 reset failed\n");
190 return -EIO;
191}
192
193static int ad1980_soc_probe(struct platform_device *pdev)
194{
195 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
196 struct snd_soc_codec *codec;
197 int ret = 0;
198 u16 vendor_id2;
9905ed35 199 u16 ext_status;
5f57dc8b
CC		 200
201 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
202
203 socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
204 if (socdev->codec == NULL)
205 return -ENOMEM;
206 codec = socdev->codec;
207 mutex_init(&codec->mutex);
208
209 codec->reg_cache =
210 kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL);
211 if (codec->reg_cache == NULL) {
212 ret = -ENOMEM;
213 goto cache_err;
214 }
215 memcpy(codec->reg_cache, ad1980_reg, sizeof(u16) * \
216 ARRAY_SIZE(ad1980_reg));
217 codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(ad1980_reg);
218 codec->reg_cache_step = 2;
219 codec->name = "AD1980";
220 codec->owner = THIS_MODULE;
221 codec->dai = &ad1980_dai;
222 codec->num_dai = 1;
223 codec->write = ac97_write;
224 codec->read = ac97_read;
225 INIT_LIST_HEAD(&codec->dapm_widgets);
226 INIT_LIST_HEAD(&codec->dapm_paths);
227
228 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
229 if (ret < 0) {
230 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
231 goto codec_err;
232 }
233
234 /* register pcms */
235 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
236 if (ret < 0)
237 goto pcm_err;
238
239
240 ret = ad1980_reset(codec, 0);
241 if (ret < 0) {
39639fab 242 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
5f57dc8b
CC		 243 goto reset_err;
244 }
245
246 /* Read out vendor ID to make sure it is ad1980 */
247 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
248 goto reset_err;
249
250 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
251
252 if (vendor_id2 != 0x5370) {
253 if (vendor_id2 != 0x5374)
254 goto reset_err;
255 else
256 printk(KERN_WARNING "ad1980: "
257 "Found AD1981 - only 2/2 IN/OUT Channels "
258 "supported\n");
259 }
260
9905ed35
CC		 261 /* unmute captures and playbacks volume */
262 ac97_write(codec, AC97_MASTER, 0x0000);
263 ac97_write(codec, AC97_PCM, 0x0000);
264 ac97_write(codec, AC97_REC_GAIN, 0x0000);
265 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
266 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
267
268 /*power on LFE/CENTER/Surround DACs*/
269 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
270 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
5f57dc8b
CC		 271
272 ad1980_add_controls(codec);
968a6025 273 ret = snd_soc_init_card(socdev);
5f57dc8b
CC		 274 if (ret < 0) {
275 printk(KERN_ERR "ad1980: failed to register card\n");
276 goto reset_err;
277 }
278
279 return 0;
280
281reset_err:
282 snd_soc_free_pcms(socdev);
283
284pcm_err:
285 snd_soc_free_ac97_codec(codec);
286
287codec_err:
288 kfree(codec->reg_cache);
289
290cache_err:
291 kfree(socdev->codec);
292 socdev->codec = NULL;
293 return ret;
294}
295
296static int ad1980_soc_remove(struct platform_device *pdev)
297{
298 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
299 struct snd_soc_codec *codec = socdev->codec;
300
301 if (codec == NULL)
302 return 0;
303
304 snd_soc_dapm_free(socdev);
305 snd_soc_free_pcms(socdev);
306 snd_soc_free_ac97_codec(codec);
307 kfree(codec->reg_cache);
308 kfree(codec);
309 return 0;
310}
311
312struct snd_soc_codec_device soc_codec_dev_ad1980 = {
313 .probe = ad1980_soc_probe,
314 .remove = ad1980_soc_remove,
315};
316EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980);
317
318MODULE_DESCRIPTION("ASoC ad1980 driver");
319MODULE_AUTHOR("Roy Huang, Cliff Cai");
320MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)