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-rw-r--r--sound/soc/codecs/ad1980.c308
1 files changed, 308 insertions, 0 deletions
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
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index 000000000000..1397b8e06c0b
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+++ b/sound/soc/codecs/ad1980.c
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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>
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
88SOC_ENUM("Capture Source", ad1980_cap_src),
89
90SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
91};
92
93/* add non dapm controls */
94static int ad1980_add_controls(struct snd_soc_codec *codec)
95{
96 int err, i;
97
98 for (i = 0; i < ARRAY_SIZE(ad1980_snd_ac97_controls); i++) {
99 err = snd_ctl_add(codec->card, snd_soc_cnew(
100 &ad1980_snd_ac97_controls[i], codec, NULL));
101 if (err < 0)
102 return err;
103 }
104 return 0;
105}
106
107static unsigned int ac97_read(struct snd_soc_codec *codec,
108 unsigned int reg)
109{
110 u16 *cache = codec->reg_cache;
111
112 switch (reg) {
113 case AC97_RESET:
114 case AC97_INT_PAGING:
115 case AC97_POWERDOWN:
116 case AC97_EXTENDED_STATUS:
117 case AC97_VENDOR_ID1:
118 case AC97_VENDOR_ID2:
119 return soc_ac97_ops.read(codec->ac97, reg);
120 default:
121 reg = reg >> 1;
122
123 if (reg >= (ARRAY_SIZE(ad1980_reg)))
124 return -EINVAL;
125
126 return cache[reg];
127 }
128}
129
130static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
131 unsigned int val)
132{
133 u16 *cache = codec->reg_cache;
134
135 soc_ac97_ops.write(codec->ac97, reg, val);
136 reg = reg >> 1;
137 if (reg < (ARRAY_SIZE(ad1980_reg)))
138 cache[reg] = val;
139
140 return 0;
141}
142
143struct snd_soc_dai ad1980_dai = {
144 .name = "AC97",
145 .playback = {
146 .stream_name = "Playback",
147 .channels_min = 2,
148 .channels_max = 2,
149 .rates = SNDRV_PCM_RATE_48000,
150 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
151 .capture = {
152 .stream_name = "Capture",
153 .channels_min = 2,
154 .channels_max = 2,
155 .rates = SNDRV_PCM_RATE_48000,
156 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
157};
158EXPORT_SYMBOL_GPL(ad1980_dai);
159
160static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
161{
162 u16 retry_cnt = 0;
163
164retry:
165 if (try_warm && soc_ac97_ops.warm_reset) {
166 soc_ac97_ops.warm_reset(codec->ac97);
167 if (ac97_read(codec, AC97_RESET) == 0x0090)
168 return 1;
169 }
170
171 soc_ac97_ops.reset(codec->ac97);
172 /* Set bit 16slot in register 74h, then every slot will has only 16
173 * bits. This command is sent out in 20bit mode, in which case the
174 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
175 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
176
177 if (ac97_read(codec, AC97_RESET) != 0x0090)
178 goto err;
179 return 0;
180
181err:
182 while (retry_cnt++ < 10)
183 goto retry;
184
185 printk(KERN_ERR "AD1980 AC97 reset failed\n");
186 return -EIO;
187}
188
189static int ad1980_soc_probe(struct platform_device *pdev)
190{
191 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
192 struct snd_soc_codec *codec;
193 int ret = 0;
194 u16 vendor_id2;
195
196 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
197
198 socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
199 if (socdev->codec == NULL)
200 return -ENOMEM;
201 codec = socdev->codec;
202 mutex_init(&codec->mutex);
203
204 codec->reg_cache =
205 kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL);
206 if (codec->reg_cache == NULL) {
207 ret = -ENOMEM;
208 goto cache_err;
209 }
210 memcpy(codec->reg_cache, ad1980_reg, sizeof(u16) * \
211 ARRAY_SIZE(ad1980_reg));
212 codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(ad1980_reg);
213 codec->reg_cache_step = 2;
214 codec->name = "AD1980";
215 codec->owner = THIS_MODULE;
216 codec->dai = &ad1980_dai;
217 codec->num_dai = 1;
218 codec->write = ac97_write;
219 codec->read = ac97_read;
220 INIT_LIST_HEAD(&codec->dapm_widgets);
221 INIT_LIST_HEAD(&codec->dapm_paths);
222
223 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
224 if (ret < 0) {
225 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
226 goto codec_err;
227 }
228
229 /* register pcms */
230 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
231 if (ret < 0)
232 goto pcm_err;
233
234
235 ret = ad1980_reset(codec, 0);
236 if (ret < 0) {
237 printk(KERN_ERR "AC97 link error\n");
238 goto reset_err;
239 }
240
241 /* Read out vendor ID to make sure it is ad1980 */
242 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
243 goto reset_err;
244
245 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
246
247 if (vendor_id2 != 0x5370) {
248 if (vendor_id2 != 0x5374)
249 goto reset_err;
250 else
251 printk(KERN_WARNING "ad1980: "
252 "Found AD1981 - only 2/2 IN/OUT Channels "
253 "supported\n");
254 }
255
256 ac97_write(codec, AC97_MASTER, 0x0000); /* unmute line out volume */
257 ac97_write(codec, AC97_PCM, 0x0000); /* unmute PCM out volume */
258 ac97_write(codec, AC97_REC_GAIN, 0x0000);/* unmute record volume */
259
260 ad1980_add_controls(codec);
261 ret = snd_soc_register_card(socdev);
262 if (ret < 0) {
263 printk(KERN_ERR "ad1980: failed to register card\n");
264 goto reset_err;
265 }
266
267 return 0;
268
269reset_err:
270 snd_soc_free_pcms(socdev);
271
272pcm_err:
273 snd_soc_free_ac97_codec(codec);
274
275codec_err:
276 kfree(codec->reg_cache);
277
278cache_err:
279 kfree(socdev->codec);
280 socdev->codec = NULL;
281 return ret;
282}
283
284static int ad1980_soc_remove(struct platform_device *pdev)
285{
286 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
287 struct snd_soc_codec *codec = socdev->codec;
288
289 if (codec == NULL)
290 return 0;
291
292 snd_soc_dapm_free(socdev);
293 snd_soc_free_pcms(socdev);
294 snd_soc_free_ac97_codec(codec);
295 kfree(codec->reg_cache);
296 kfree(codec);
297 return 0;
298}
299
300struct snd_soc_codec_device soc_codec_dev_ad1980 = {
301 .probe = ad1980_soc_probe,
302 .remove = ad1980_soc_remove,
303};
304EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980);
305
306MODULE_DESCRIPTION("ASoC ad1980 driver");
307MODULE_AUTHOR("Roy Huang, Cliff Cai");
308MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 02:21:26 -0500