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Linux 3.11-rc4
[deliverable/linux.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
2e2211a3
SZ		 14/*
15 * WARNING:
16 *
17 * Because Analog Devices Inc. discontinued the ad1980 sound chip since
18 * Sep. 2009, this ad1980 driver is not maintained, tested and supported
19 * by ADI now.
20 */
21
5f57dc8b 22#include <linux/init.h>
5a0e3ad6 23#include <linux/slab.h>
5f57dc8b 24#include <linux/module.h>
5f57dc8b
CC		 25#include <linux/kernel.h>
26#include <linux/device.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/ac97_codec.h>
30#include <sound/initval.h>
31#include <sound/soc.h>
5f57dc8b
CC		 32
33#include "ad1980.h"
34
5f57dc8b
CC		 35/*
36 * AD1980 register cache
37 */
38static const u16 ad1980_reg[] = {
39 0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */
40 0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */
41 0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
42 0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
43 0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
44 0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
45 0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
46 0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
47 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
48 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
49 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
50 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
51 0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
52 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
53 0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
54 0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */
55};
56
57static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
58 "Stereo Mix", "Mono Mix", "Phone"};
59
60static const struct soc_enum ad1980_cap_src =
61 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
62
63static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
64SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
65SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
66
67SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
68SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
69
70SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
71SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
72
73SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
74SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
75
76SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
77SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
78
79SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
80SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
81
82SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
83SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
84
85SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
86SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
87
88SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
89SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
90
9905ed35
CC		 91SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
92SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
93
5f57dc8b
CC		 94SOC_ENUM("Capture Source", ad1980_cap_src),
95
96SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
97};
98
5f57dc8b
CC		 99static unsigned int ac97_read(struct snd_soc_codec *codec,
100 unsigned int reg)
101{
102 u16 *cache = codec->reg_cache;
103
104 switch (reg) {
105 case AC97_RESET:
106 case AC97_INT_PAGING:
107 case AC97_POWERDOWN:
108 case AC97_EXTENDED_STATUS:
109 case AC97_VENDOR_ID1:
110 case AC97_VENDOR_ID2:
b047e1cc 111 return soc_ac97_ops->read(codec->ac97, reg);
5f57dc8b
CC		 112 default:
113 reg = reg >> 1;
114
91432e97 115 if (reg >= ARRAY_SIZE(ad1980_reg))
5f57dc8b
CC		 116 return -EINVAL;
117
118 return cache[reg];
119 }
120}
121
122static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
123 unsigned int val)
124{
125 u16 *cache = codec->reg_cache;
126
b047e1cc 127 soc_ac97_ops->write(codec->ac97, reg, val);
5f57dc8b 128 reg = reg >> 1;
91432e97 129 if (reg < ARRAY_SIZE(ad1980_reg))
5f57dc8b
CC		 130 cache[reg] = val;
131
132 return 0;
133}
134
de535a5b 135static struct snd_soc_dai_driver ad1980_dai = {
f0fba2ad 136 .name = "ad1980-hifi",
67c91513 137 .ac97_control = 1,
5f57dc8b
CC		 138 .playback = {
139 .stream_name = "Playback",
140 .channels_min = 2,
9905ed35 141 .channels_max = 6,
5f57dc8b 142 .rates = SNDRV_PCM_RATE_48000,
33f503c9 143 .formats = SND_SOC_STD_AC97_FMTS, },
5f57dc8b
CC		 144 .capture = {
145 .stream_name = "Capture",
146 .channels_min = 2,
147 .channels_max = 2,
148 .rates = SNDRV_PCM_RATE_48000,
33f503c9 149 .formats = SND_SOC_STD_AC97_FMTS, },
5f57dc8b 150};
5f57dc8b
CC		 151
152static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
153{
154 u16 retry_cnt = 0;
155
156retry:
b047e1cc
MB		 157 if (try_warm && soc_ac97_ops->warm_reset) {
158 soc_ac97_ops->warm_reset(codec->ac97);
5f57dc8b
CC		 159 if (ac97_read(codec, AC97_RESET) == 0x0090)
160 return 1;
161 }
162
b047e1cc 163 soc_ac97_ops->reset(codec->ac97);
5f57dc8b
CC		 164 /* Set bit 16slot in register 74h, then every slot will has only 16
165 * bits. This command is sent out in 20bit mode, in which case the
166 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
167 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
168
169 if (ac97_read(codec, AC97_RESET) != 0x0090)
170 goto err;
171 return 0;
172
173err:
174 while (retry_cnt++ < 10)
175 goto retry;
176
177 printk(KERN_ERR "AD1980 AC97 reset failed\n");
178 return -EIO;
179}
180
f0fba2ad 181static int ad1980_soc_probe(struct snd_soc_codec *codec)
5f57dc8b 182{
f0fba2ad 183 int ret;
5f57dc8b 184 u16 vendor_id2;
9905ed35 185 u16 ext_status;
5f57dc8b
CC		 186
187 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
188
b047e1cc 189 ret = snd_soc_new_ac97_codec(codec, soc_ac97_ops, 0);
5f57dc8b
CC		 190 if (ret < 0) {
191 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
f0fba2ad 192 return ret;
5f57dc8b
CC		 193 }
194
5f57dc8b
CC		 195 ret = ad1980_reset(codec, 0);
196 if (ret < 0) {
39639fab 197 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
5f57dc8b
CC		 198 goto reset_err;
199 }
200
201 /* Read out vendor ID to make sure it is ad1980 */
0f73644f
AL		 202 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144) {
203 ret = -ENODEV;
5f57dc8b 204 goto reset_err;
0f73644f 205 }
5f57dc8b
CC		 206
207 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
208
209 if (vendor_id2 != 0x5370) {
0f73644f
AL		 210 if (vendor_id2 != 0x5374) {
211 ret = -ENODEV;
5f57dc8b 212 goto reset_err;
0f73644f 213 } else {
5f57dc8b
CC		 214 printk(KERN_WARNING "ad1980: "
215 "Found AD1981 - only 2/2 IN/OUT Channels "
216 "supported\n");
0f73644f 217 }
5f57dc8b
CC		 218 }
219
9905ed35
CC		 220 /* unmute captures and playbacks volume */
221 ac97_write(codec, AC97_MASTER, 0x0000);
222 ac97_write(codec, AC97_PCM, 0x0000);
223 ac97_write(codec, AC97_REC_GAIN, 0x0000);
224 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
225 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
226
227 /*power on LFE/CENTER/Surround DACs*/
228 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
229 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
5f57dc8b 230
022658be 231 snd_soc_add_codec_controls(codec, ad1980_snd_ac97_controls,
3e8e1952 232 ARRAY_SIZE(ad1980_snd_ac97_controls));
5f57dc8b
CC		 233
234 return 0;
235
236reset_err:
5f57dc8b 237 snd_soc_free_ac97_codec(codec);
5f57dc8b
CC		 238 return ret;
239}
240
f0fba2ad 241static int ad1980_soc_remove(struct snd_soc_codec *codec)
5f57dc8b 242{
5f57dc8b 243 snd_soc_free_ac97_codec(codec);
5f57dc8b
CC		 244 return 0;
245}
246
f0fba2ad 247static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
5f57dc8b
CC		 248 .probe = ad1980_soc_probe,
249 .remove = ad1980_soc_remove,
f0fba2ad
LG		 250 .reg_cache_size = ARRAY_SIZE(ad1980_reg),
251 .reg_word_size = sizeof(u16),
c7bad06f 252 .reg_cache_default = ad1980_reg,
f0fba2ad
LG		 253 .reg_cache_step = 2,
254 .write = ac97_write,
255 .read = ac97_read,
5f57dc8b 256};
f0fba2ad 257
7a79e94e 258static int ad1980_probe(struct platform_device *pdev)
f0fba2ad
LG		 259{
260 return snd_soc_register_codec(&pdev->dev,
261 &soc_codec_dev_ad1980, &ad1980_dai, 1);
262}
263
7a79e94e 264static int ad1980_remove(struct platform_device *pdev)
f0fba2ad
LG		 265{
266 snd_soc_unregister_codec(&pdev->dev);
267 return 0;
268}
269
270static struct platform_driver ad1980_codec_driver = {
271 .driver = {
1afa98b8 272 .name = "ad1980",
f0fba2ad
LG		 273 .owner = THIS_MODULE,
274 },
275
276 .probe = ad1980_probe,
7a79e94e 277 .remove = ad1980_remove,
f0fba2ad
LG		 278};
279
5bbcc3c0 280module_platform_driver(ad1980_codec_driver);
5f57dc8b 281
2e2211a3 282MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
5f57dc8b
CC		 283MODULE_AUTHOR("Roy Huang, Cliff Cai");
284MODULE_LICENSE("GPL");
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