2 * ad1980.c -- ALSA Soc AD1980 codec support
4 * Copyright: Analog Device Inc.
5 * Author: Roy Huang <roy.huang@analog.com>
6 * Cliff Cai <cliff.cai@analog.com>
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.
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/device.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/ac97_codec.h>
22 #include <sound/initval.h>
23 #include <sound/soc.h>
24 #include <sound/soc-dapm.h>
28 static unsigned int ac97_read(struct snd_soc_codec *codec,
30 static int ac97_write(struct snd_soc_codec *codec,
31 unsigned int reg, unsigned int val);
34 * AD1980 register cache
36 static const u16 ad1980_reg[] = {
37 0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */
38 0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */
39 0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
40 0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
41 0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
42 0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
43 0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
44 0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
45 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
46 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
47 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
48 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
49 0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
50 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
51 0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
52 0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */
55 static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
56 "Stereo Mix", "Mono Mix", "Phone"};
58 static const struct soc_enum ad1980_cap_src =
59 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
61 static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
62 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
63 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
65 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
66 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
68 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
69 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
71 SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
72 SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
74 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
75 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
77 SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
78 SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
80 SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
81 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
83 SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
84 SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
86 SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
87 SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
89 SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
90 SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
92 SOC_ENUM("Capture Source", ad1980_cap_src),
94 SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
97 static unsigned int ac97_read(struct snd_soc_codec *codec,
100 u16 *cache = codec->reg_cache;
104 case AC97_INT_PAGING:
106 case AC97_EXTENDED_STATUS:
107 case AC97_VENDOR_ID1:
108 case AC97_VENDOR_ID2:
109 return soc_ac97_ops.read(codec->ac97, reg);
113 if (reg >= ARRAY_SIZE(ad1980_reg))
120 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
123 u16 *cache = codec->reg_cache;
125 soc_ac97_ops.write(codec->ac97, reg, val);
127 if (reg < ARRAY_SIZE(ad1980_reg))
133 struct snd_soc_dai ad1980_dai = {
137 .stream_name = "Playback",
140 .rates = SNDRV_PCM_RATE_48000,
141 .formats = SND_SOC_STD_AC97_FMTS, },
143 .stream_name = "Capture",
146 .rates = SNDRV_PCM_RATE_48000,
147 .formats = SND_SOC_STD_AC97_FMTS, },
149 EXPORT_SYMBOL_GPL(ad1980_dai);
151 static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
156 if (try_warm && soc_ac97_ops.warm_reset) {
157 soc_ac97_ops.warm_reset(codec->ac97);
158 if (ac97_read(codec, AC97_RESET) == 0x0090)
162 soc_ac97_ops.reset(codec->ac97);
163 /* Set bit 16slot in register 74h, then every slot will has only 16
164 * bits. This command is sent out in 20bit mode, in which case the
165 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
166 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
168 if (ac97_read(codec, AC97_RESET) != 0x0090)
173 while (retry_cnt++ < 10)
176 printk(KERN_ERR "AD1980 AC97 reset failed\n");
180 static int ad1980_soc_probe(struct platform_device *pdev)
182 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
183 struct snd_soc_codec *codec;
188 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
190 socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
191 if (socdev->card->codec == NULL)
193 codec = socdev->card->codec;
194 mutex_init(&codec->mutex);
197 kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL);
198 if (codec->reg_cache == NULL) {
202 memcpy(codec->reg_cache, ad1980_reg, sizeof(u16) * \
203 ARRAY_SIZE(ad1980_reg));
204 codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(ad1980_reg);
205 codec->reg_cache_step = 2;
206 codec->name = "AD1980";
207 codec->owner = THIS_MODULE;
208 codec->dai = &ad1980_dai;
210 codec->write = ac97_write;
211 codec->read = ac97_read;
212 INIT_LIST_HEAD(&codec->dapm_widgets);
213 INIT_LIST_HEAD(&codec->dapm_paths);
215 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
217 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
222 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
227 ret = ad1980_reset(codec, 0);
229 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
233 /* Read out vendor ID to make sure it is ad1980 */
234 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
237 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
239 if (vendor_id2 != 0x5370) {
240 if (vendor_id2 != 0x5374)
243 printk(KERN_WARNING "ad1980: "
244 "Found AD1981 - only 2/2 IN/OUT Channels "
248 /* unmute captures and playbacks volume */
249 ac97_write(codec, AC97_MASTER, 0x0000);
250 ac97_write(codec, AC97_PCM, 0x0000);
251 ac97_write(codec, AC97_REC_GAIN, 0x0000);
252 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
253 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
255 /*power on LFE/CENTER/Surround DACs*/
256 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
257 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
259 snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
260 ARRAY_SIZE(ad1980_snd_ac97_controls));
265 snd_soc_free_pcms(socdev);
268 snd_soc_free_ac97_codec(codec);
271 kfree(codec->reg_cache);
274 kfree(socdev->card->codec);
275 socdev->card->codec = NULL;
279 static int ad1980_soc_remove(struct platform_device *pdev)
281 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
282 struct snd_soc_codec *codec = socdev->card->codec;
287 snd_soc_dapm_free(socdev);
288 snd_soc_free_pcms(socdev);
289 snd_soc_free_ac97_codec(codec);
290 kfree(codec->reg_cache);
295 struct snd_soc_codec_device soc_codec_dev_ad1980 = {
296 .probe = ad1980_soc_probe,
297 .remove = ad1980_soc_remove,
299 EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980);
301 MODULE_DESCRIPTION("ASoC ad1980 driver");
302 MODULE_AUTHOR("Roy Huang, Cliff Cai");
303 MODULE_LICENSE("GPL");