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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 | */ | |
38 | static 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 | ||
57 | static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line", | |
58 | "Stereo Mix", "Mono Mix", "Phone"}; | |
59 | ||
60 | static const struct soc_enum ad1980_cap_src = | |
61 | SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel); | |
62 | ||
63 | static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = { | |
64 | SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1), | |
65 | SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1), | |
66 | ||
67 | SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), | |
68 | SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), | |
69 | ||
70 | SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), | |
71 | SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), | |
72 | ||
73 | SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0), | |
74 | SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1), | |
75 | ||
76 | SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), | |
77 | SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), | |
78 | ||
79 | SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1), | |
80 | SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1), | |
81 | ||
82 | SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1), | |
83 | SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1), | |
84 | ||
85 | SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0), | |
86 | SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0), | |
87 | ||
88 | SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1), | |
89 | SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1), | |
90 | ||
9905ed35 CC |
91 | SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1), |
92 | SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1), | |
93 | ||
5f57dc8b CC |
94 | SOC_ENUM("Capture Source", ad1980_cap_src), |
95 | ||
96 | SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0), | |
97 | }; | |
98 | ||
5f57dc8b CC |
99 | static 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 | ||
122 | static 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 | 135 | static 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 | |
152 | static int ad1980_reset(struct snd_soc_codec *codec, int try_warm) | |
153 | { | |
154 | u16 retry_cnt = 0; | |
155 | ||
156 | retry: | |
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 | ||
173 | err: | |
174 | while (retry_cnt++ < 10) | |
175 | goto retry; | |
176 | ||
177 | printk(KERN_ERR "AD1980 AC97 reset failed\n"); | |
178 | return -EIO; | |
179 | } | |
180 | ||
f0fba2ad | 181 | static 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 | ||
236 | reset_err: | |
5f57dc8b | 237 | snd_soc_free_ac97_codec(codec); |
5f57dc8b CC |
238 | return ret; |
239 | } | |
240 | ||
f0fba2ad | 241 | static 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 | 247 | static 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 | 258 | static 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 | 264 | static int ad1980_remove(struct platform_device *pdev) |
f0fba2ad LG |
265 | { |
266 | snd_soc_unregister_codec(&pdev->dev); | |
267 | return 0; | |
268 | } | |
269 | ||
270 | static 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 | 280 | module_platform_driver(ad1980_codec_driver); |
5f57dc8b | 281 | |
2e2211a3 | 282 | MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)"); |
5f57dc8b CC |
283 | MODULE_AUTHOR("Roy Huang, Cliff Cai"); |
284 | MODULE_LICENSE("GPL"); |