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/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>
27 static unsigned int ac97_read(struct snd_soc_codec *codec,
29 static int ac97_write(struct snd_soc_codec *codec,
30 unsigned int reg, unsigned int val);
33 * AD1980 register cache
35 static 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 */
54 static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
55 "Stereo Mix", "Mono Mix", "Phone"};
57 static const struct soc_enum ad1980_cap_src =
58 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
60 static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
61 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
62 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
64 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
65 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
67 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
68 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
70 SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
71 SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
73 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
74 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
76 SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
77 SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
79 SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
80 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
82 SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
83 SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
85 SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
86 SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
88 SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
89 SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
91 SOC_ENUM("Capture Source", ad1980_cap_src),
93 SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
96 static unsigned int ac97_read(struct snd_soc_codec *codec,
99 u16 *cache = codec->reg_cache;
103 case AC97_INT_PAGING:
105 case AC97_EXTENDED_STATUS:
106 case AC97_VENDOR_ID1:
107 case AC97_VENDOR_ID2:
108 return soc_ac97_ops.read(codec->ac97, reg);
112 if (reg >= ARRAY_SIZE(ad1980_reg))
119 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
122 u16 *cache = codec->reg_cache;
124 soc_ac97_ops.write(codec->ac97, reg, val);
126 if (reg < ARRAY_SIZE(ad1980_reg))
132 struct snd_soc_dai ad1980_dai = {
136 .stream_name = "Playback",
139 .rates = SNDRV_PCM_RATE_48000,
140 .formats = SND_SOC_STD_AC97_FMTS, },
142 .stream_name = "Capture",
145 .rates = SNDRV_PCM_RATE_48000,
146 .formats = SND_SOC_STD_AC97_FMTS, },
148 EXPORT_SYMBOL_GPL(ad1980_dai);
150 static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
155 if (try_warm && soc_ac97_ops.warm_reset) {
156 soc_ac97_ops.warm_reset(codec->ac97);
157 if (ac97_read(codec, AC97_RESET) == 0x0090)
161 soc_ac97_ops.reset(codec->ac97);
162 /* Set bit 16slot in register 74h, then every slot will has only 16
163 * bits. This command is sent out in 20bit mode, in which case the
164 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
165 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
167 if (ac97_read(codec, AC97_RESET) != 0x0090)
172 while (retry_cnt++ < 10)
175 printk(KERN_ERR "AD1980 AC97 reset failed\n");
179 static int ad1980_soc_probe(struct platform_device *pdev)
181 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
182 struct snd_soc_codec *codec;
187 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
189 socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
190 if (socdev->card->codec == NULL)
192 codec = socdev->card->codec;
193 mutex_init(&codec->mutex);
196 kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL);
197 if (codec->reg_cache == NULL) {
201 memcpy(codec->reg_cache, ad1980_reg, sizeof(u16) * \
202 ARRAY_SIZE(ad1980_reg));
203 codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(ad1980_reg);
204 codec->reg_cache_step = 2;
205 codec->name = "AD1980";
206 codec->owner = THIS_MODULE;
207 codec->dai = &ad1980_dai;
209 codec->write = ac97_write;
210 codec->read = ac97_read;
211 INIT_LIST_HEAD(&codec->dapm_widgets);
212 INIT_LIST_HEAD(&codec->dapm_paths);
214 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
216 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
221 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
226 ret = ad1980_reset(codec, 0);
228 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
232 /* Read out vendor ID to make sure it is ad1980 */
233 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
236 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
238 if (vendor_id2 != 0x5370) {
239 if (vendor_id2 != 0x5374)
242 printk(KERN_WARNING "ad1980: "
243 "Found AD1981 - only 2/2 IN/OUT Channels "
247 /* unmute captures and playbacks volume */
248 ac97_write(codec, AC97_MASTER, 0x0000);
249 ac97_write(codec, AC97_PCM, 0x0000);
250 ac97_write(codec, AC97_REC_GAIN, 0x0000);
251 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
252 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
254 /*power on LFE/CENTER/Surround DACs*/
255 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
256 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
258 snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
259 ARRAY_SIZE(ad1980_snd_ac97_controls));
260 ret = snd_soc_init_card(socdev);
262 printk(KERN_ERR "ad1980: failed to register card\n");
269 snd_soc_free_pcms(socdev);
272 snd_soc_free_ac97_codec(codec);
275 kfree(codec->reg_cache);
278 kfree(socdev->card->codec);
279 socdev->card->codec = NULL;
283 static int ad1980_soc_remove(struct platform_device *pdev)
285 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
286 struct snd_soc_codec *codec = socdev->card->codec;
291 snd_soc_dapm_free(socdev);
292 snd_soc_free_pcms(socdev);
293 snd_soc_free_ac97_codec(codec);
294 kfree(codec->reg_cache);
299 struct snd_soc_codec_device soc_codec_dev_ad1980 = {
300 .probe = ad1980_soc_probe,
301 .remove = ad1980_soc_remove,
303 EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980);
305 MODULE_DESCRIPTION("ASoC ad1980 driver");
306 MODULE_AUTHOR("Roy Huang, Cliff Cai");
307 MODULE_LICENSE("GPL");