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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> | |
32 | #include <sound/soc-dapm.h> | |
33 | ||
34 | #include "ad1980.h" | |
35 | ||
5f57dc8b CC |
36 | /* |
37 | * AD1980 register cache | |
38 | */ | |
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 */ | |
56 | }; | |
57 | ||
58 | static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line", | |
59 | "Stereo Mix", "Mono Mix", "Phone"}; | |
60 | ||
61 | static const struct soc_enum ad1980_cap_src = | |
62 | SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel); | |
63 | ||
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), | |
67 | ||
68 | SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), | |
69 | SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), | |
70 | ||
71 | SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), | |
72 | SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), | |
73 | ||
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), | |
76 | ||
77 | SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), | |
78 | SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), | |
79 | ||
80 | SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1), | |
81 | SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1), | |
82 | ||
83 | SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1), | |
84 | SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1), | |
85 | ||
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), | |
88 | ||
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), | |
91 | ||
9905ed35 CC |
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), | |
94 | ||
5f57dc8b CC |
95 | SOC_ENUM("Capture Source", ad1980_cap_src), |
96 | ||
97 | SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0), | |
98 | }; | |
99 | ||
5f57dc8b CC |
100 | static unsigned int ac97_read(struct snd_soc_codec *codec, |
101 | unsigned int reg) | |
102 | { | |
103 | u16 *cache = codec->reg_cache; | |
104 | ||
105 | switch (reg) { | |
106 | case AC97_RESET: | |
107 | case AC97_INT_PAGING: | |
108 | case AC97_POWERDOWN: | |
109 | case AC97_EXTENDED_STATUS: | |
110 | case AC97_VENDOR_ID1: | |
111 | case AC97_VENDOR_ID2: | |
112 | return soc_ac97_ops.read(codec->ac97, reg); | |
113 | default: | |
114 | reg = reg >> 1; | |
115 | ||
91432e97 | 116 | if (reg >= ARRAY_SIZE(ad1980_reg)) |
5f57dc8b CC |
117 | return -EINVAL; |
118 | ||
119 | return cache[reg]; | |
120 | } | |
121 | } | |
122 | ||
123 | static int ac97_write(struct snd_soc_codec *codec, unsigned int reg, | |
124 | unsigned int val) | |
125 | { | |
126 | u16 *cache = codec->reg_cache; | |
127 | ||
128 | soc_ac97_ops.write(codec->ac97, reg, val); | |
129 | reg = reg >> 1; | |
91432e97 | 130 | if (reg < ARRAY_SIZE(ad1980_reg)) |
5f57dc8b CC |
131 | cache[reg] = val; |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
de535a5b | 136 | static struct snd_soc_dai_driver ad1980_dai = { |
f0fba2ad | 137 | .name = "ad1980-hifi", |
67c91513 | 138 | .ac97_control = 1, |
5f57dc8b CC |
139 | .playback = { |
140 | .stream_name = "Playback", | |
141 | .channels_min = 2, | |
9905ed35 | 142 | .channels_max = 6, |
5f57dc8b | 143 | .rates = SNDRV_PCM_RATE_48000, |
33f503c9 | 144 | .formats = SND_SOC_STD_AC97_FMTS, }, |
5f57dc8b CC |
145 | .capture = { |
146 | .stream_name = "Capture", | |
147 | .channels_min = 2, | |
148 | .channels_max = 2, | |
149 | .rates = SNDRV_PCM_RATE_48000, | |
33f503c9 | 150 | .formats = SND_SOC_STD_AC97_FMTS, }, |
5f57dc8b CC |
151 | }; |
152 | EXPORT_SYMBOL_GPL(ad1980_dai); | |
153 | ||
154 | static int ad1980_reset(struct snd_soc_codec *codec, int try_warm) | |
155 | { | |
156 | u16 retry_cnt = 0; | |
157 | ||
158 | retry: | |
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) | |
162 | return 1; | |
163 | } | |
164 | ||
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); | |
170 | ||
171 | if (ac97_read(codec, AC97_RESET) != 0x0090) | |
172 | goto err; | |
173 | return 0; | |
174 | ||
175 | err: | |
176 | while (retry_cnt++ < 10) | |
177 | goto retry; | |
178 | ||
179 | printk(KERN_ERR "AD1980 AC97 reset failed\n"); | |
180 | return -EIO; | |
181 | } | |
182 | ||
f0fba2ad | 183 | static int ad1980_soc_probe(struct snd_soc_codec *codec) |
5f57dc8b | 184 | { |
f0fba2ad | 185 | int ret; |
5f57dc8b | 186 | u16 vendor_id2; |
9905ed35 | 187 | u16 ext_status; |
5f57dc8b CC |
188 | |
189 | printk(KERN_INFO "AD1980 SoC Audio Codec\n"); | |
190 | ||
5f57dc8b CC |
191 | ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0); |
192 | if (ret < 0) { | |
193 | printk(KERN_ERR "ad1980: failed to register AC97 codec\n"); | |
f0fba2ad | 194 | return ret; |
5f57dc8b CC |
195 | } |
196 | ||
5f57dc8b CC |
197 | ret = ad1980_reset(codec, 0); |
198 | if (ret < 0) { | |
39639fab | 199 | printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n"); |
5f57dc8b CC |
200 | goto reset_err; |
201 | } | |
202 | ||
203 | /* Read out vendor ID to make sure it is ad1980 */ | |
204 | if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144) | |
205 | goto reset_err; | |
206 | ||
207 | vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2); | |
208 | ||
209 | if (vendor_id2 != 0x5370) { | |
210 | if (vendor_id2 != 0x5374) | |
211 | goto reset_err; | |
212 | else | |
213 | printk(KERN_WARNING "ad1980: " | |
214 | "Found AD1981 - only 2/2 IN/OUT Channels " | |
215 | "supported\n"); | |
216 | } | |
217 | ||
9905ed35 CC |
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); | |
224 | ||
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); | |
5f57dc8b | 228 | |
3e8e1952 IM |
229 | snd_soc_add_controls(codec, ad1980_snd_ac97_controls, |
230 | ARRAY_SIZE(ad1980_snd_ac97_controls)); | |
5f57dc8b CC |
231 | |
232 | return 0; | |
233 | ||
234 | reset_err: | |
5f57dc8b | 235 | snd_soc_free_ac97_codec(codec); |
5f57dc8b CC |
236 | return ret; |
237 | } | |
238 | ||
f0fba2ad | 239 | static int ad1980_soc_remove(struct snd_soc_codec *codec) |
5f57dc8b | 240 | { |
5f57dc8b | 241 | snd_soc_free_ac97_codec(codec); |
5f57dc8b CC |
242 | return 0; |
243 | } | |
244 | ||
f0fba2ad | 245 | static struct snd_soc_codec_driver soc_codec_dev_ad1980 = { |
5f57dc8b CC |
246 | .probe = ad1980_soc_probe, |
247 | .remove = ad1980_soc_remove, | |
f0fba2ad LG |
248 | .reg_cache_size = ARRAY_SIZE(ad1980_reg), |
249 | .reg_word_size = sizeof(u16), | |
c7bad06f | 250 | .reg_cache_default = ad1980_reg, |
f0fba2ad LG |
251 | .reg_cache_step = 2, |
252 | .write = ac97_write, | |
253 | .read = ac97_read, | |
5f57dc8b | 254 | }; |
f0fba2ad LG |
255 | |
256 | static __devinit int ad1980_probe(struct platform_device *pdev) | |
257 | { | |
258 | return snd_soc_register_codec(&pdev->dev, | |
259 | &soc_codec_dev_ad1980, &ad1980_dai, 1); | |
260 | } | |
261 | ||
262 | static int __devexit ad1980_remove(struct platform_device *pdev) | |
263 | { | |
264 | snd_soc_unregister_codec(&pdev->dev); | |
265 | return 0; | |
266 | } | |
267 | ||
268 | static struct platform_driver ad1980_codec_driver = { | |
269 | .driver = { | |
270 | .name = "ad1980-codec", | |
271 | .owner = THIS_MODULE, | |
272 | }, | |
273 | ||
274 | .probe = ad1980_probe, | |
275 | .remove = __devexit_p(ad1980_remove), | |
276 | }; | |
277 | ||
278 | static int __init ad1980_init(void) | |
279 | { | |
280 | return platform_driver_register(&ad1980_codec_driver); | |
281 | } | |
282 | module_init(ad1980_init); | |
283 | ||
284 | static void __exit ad1980_exit(void) | |
285 | { | |
286 | platform_driver_unregister(&ad1980_codec_driver); | |
287 | } | |
288 | module_exit(ad1980_exit); | |
5f57dc8b | 289 | |
2e2211a3 | 290 | MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)"); |
5f57dc8b CC |
291 | MODULE_AUTHOR("Roy Huang, Cliff Cai"); |
292 | MODULE_LICENSE("GPL"); |