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.
17 * Because Analog Devices Inc. discontinued the ad1980 sound chip since
18 * Sep. 2009, this ad1980 driver is not maintained, tested and supported
22 #include <linux/init.h>
23 #include <linux/slab.h>
24 #include <linux/module.h>
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>
32 #include <sound/soc-dapm.h>
37 * AD1980 register cache
39 static const u16 ad1980_reg[] = {
40 0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */
41 0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */
42 0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
43 0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
44 0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
45 0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
46 0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
47 0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
48 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
49 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
50 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
51 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
52 0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
53 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
54 0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
55 0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */
58 static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
59 "Stereo Mix", "Mono Mix", "Phone"};
61 static const struct soc_enum ad1980_cap_src =
62 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
64 static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
65 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
66 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
68 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
69 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
71 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
72 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
74 SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
75 SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
77 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
78 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
80 SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
81 SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
83 SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
84 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
86 SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
87 SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
89 SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
90 SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
92 SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
93 SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
95 SOC_ENUM("Capture Source", ad1980_cap_src),
97 SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
100 static unsigned int ac97_read(struct snd_soc_codec *codec,
103 u16 *cache = codec->reg_cache;
107 case AC97_INT_PAGING:
109 case AC97_EXTENDED_STATUS:
110 case AC97_VENDOR_ID1:
111 case AC97_VENDOR_ID2:
112 return soc_ac97_ops.read(codec->ac97, reg);
116 if (reg >= ARRAY_SIZE(ad1980_reg))
123 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
126 u16 *cache = codec->reg_cache;
128 soc_ac97_ops.write(codec->ac97, reg, val);
130 if (reg < ARRAY_SIZE(ad1980_reg))
136 static struct snd_soc_dai_driver ad1980_dai = {
137 .name = "ad1980-hifi",
140 .stream_name = "Playback",
143 .rates = SNDRV_PCM_RATE_48000,
144 .formats = SND_SOC_STD_AC97_FMTS, },
146 .stream_name = "Capture",
149 .rates = SNDRV_PCM_RATE_48000,
150 .formats = SND_SOC_STD_AC97_FMTS, },
152 EXPORT_SYMBOL_GPL(ad1980_dai);
154 static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
159 if (try_warm && soc_ac97_ops.warm_reset) {
160 soc_ac97_ops.warm_reset(codec->ac97);
161 if (ac97_read(codec, AC97_RESET) == 0x0090)
165 soc_ac97_ops.reset(codec->ac97);
166 /* Set bit 16slot in register 74h, then every slot will has only 16
167 * bits. This command is sent out in 20bit mode, in which case the
168 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
169 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
171 if (ac97_read(codec, AC97_RESET) != 0x0090)
176 while (retry_cnt++ < 10)
179 printk(KERN_ERR "AD1980 AC97 reset failed\n");
183 static int ad1980_soc_probe(struct snd_soc_codec *codec)
189 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
191 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
193 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
197 ret = ad1980_reset(codec, 0);
199 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
203 /* Read out vendor ID to make sure it is ad1980 */
204 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
207 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
209 if (vendor_id2 != 0x5370) {
210 if (vendor_id2 != 0x5374)
213 printk(KERN_WARNING "ad1980: "
214 "Found AD1981 - only 2/2 IN/OUT Channels "
218 /* unmute captures and playbacks volume */
219 ac97_write(codec, AC97_MASTER, 0x0000);
220 ac97_write(codec, AC97_PCM, 0x0000);
221 ac97_write(codec, AC97_REC_GAIN, 0x0000);
222 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
223 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
225 /*power on LFE/CENTER/Surround DACs*/
226 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
227 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
229 snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
230 ARRAY_SIZE(ad1980_snd_ac97_controls));
235 snd_soc_free_ac97_codec(codec);
239 static int ad1980_soc_remove(struct snd_soc_codec *codec)
241 snd_soc_free_ac97_codec(codec);
245 static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
246 .probe = ad1980_soc_probe,
247 .remove = ad1980_soc_remove,
248 .reg_cache_size = ARRAY_SIZE(ad1980_reg),
249 .reg_word_size = sizeof(u16),
250 .reg_cache_default = ad1980_reg,
256 static __devinit int ad1980_probe(struct platform_device *pdev)
258 return snd_soc_register_codec(&pdev->dev,
259 &soc_codec_dev_ad1980, &ad1980_dai, 1);
262 static int __devexit ad1980_remove(struct platform_device *pdev)
264 snd_soc_unregister_codec(&pdev->dev);
268 static struct platform_driver ad1980_codec_driver = {
270 .name = "ad1980-codec",
271 .owner = THIS_MODULE,
274 .probe = ad1980_probe,
275 .remove = __devexit_p(ad1980_remove),
278 static int __init ad1980_init(void)
280 return platform_driver_register(&ad1980_codec_driver);
282 module_init(ad1980_init);
284 static void __exit ad1980_exit(void)
286 platform_driver_unregister(&ad1980_codec_driver);
288 module_exit(ad1980_exit);
290 MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
291 MODULE_AUTHOR("Roy Huang, Cliff Cai");
292 MODULE_LICENSE("GPL");