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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 | ||
14 | #include <linux/init.h> | |
15 | #include <linux/module.h> | |
5f57dc8b CC |
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> | |
24 | ||
25 | #include "ad1980.h" | |
26 | ||
27 | static unsigned int ac97_read(struct snd_soc_codec *codec, | |
28 | unsigned int reg); | |
29 | static int ac97_write(struct snd_soc_codec *codec, | |
30 | unsigned int reg, unsigned int val); | |
31 | ||
32 | /* | |
33 | * AD1980 register cache | |
34 | */ | |
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 */ | |
52 | }; | |
53 | ||
54 | static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line", | |
55 | "Stereo Mix", "Mono Mix", "Phone"}; | |
56 | ||
57 | static const struct soc_enum ad1980_cap_src = | |
58 | SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel); | |
59 | ||
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), | |
63 | ||
64 | SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), | |
65 | SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), | |
66 | ||
67 | SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), | |
68 | SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), | |
69 | ||
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), | |
72 | ||
73 | SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), | |
74 | SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), | |
75 | ||
76 | SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1), | |
77 | SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1), | |
78 | ||
79 | SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1), | |
80 | SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1), | |
81 | ||
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), | |
84 | ||
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), | |
87 | ||
9905ed35 CC |
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), | |
90 | ||
5f57dc8b CC |
91 | SOC_ENUM("Capture Source", ad1980_cap_src), |
92 | ||
93 | SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0), | |
94 | }; | |
95 | ||
5f57dc8b CC |
96 | static unsigned int ac97_read(struct snd_soc_codec *codec, |
97 | unsigned int reg) | |
98 | { | |
99 | u16 *cache = codec->reg_cache; | |
100 | ||
101 | switch (reg) { | |
102 | case AC97_RESET: | |
103 | case AC97_INT_PAGING: | |
104 | case AC97_POWERDOWN: | |
105 | case AC97_EXTENDED_STATUS: | |
106 | case AC97_VENDOR_ID1: | |
107 | case AC97_VENDOR_ID2: | |
108 | return soc_ac97_ops.read(codec->ac97, reg); | |
109 | default: | |
110 | reg = reg >> 1; | |
111 | ||
91432e97 | 112 | if (reg >= ARRAY_SIZE(ad1980_reg)) |
5f57dc8b CC |
113 | return -EINVAL; |
114 | ||
115 | return cache[reg]; | |
116 | } | |
117 | } | |
118 | ||
119 | static int ac97_write(struct snd_soc_codec *codec, unsigned int reg, | |
120 | unsigned int val) | |
121 | { | |
122 | u16 *cache = codec->reg_cache; | |
123 | ||
124 | soc_ac97_ops.write(codec->ac97, reg, val); | |
125 | reg = reg >> 1; | |
91432e97 | 126 | if (reg < ARRAY_SIZE(ad1980_reg)) |
5f57dc8b CC |
127 | cache[reg] = val; |
128 | ||
129 | return 0; | |
130 | } | |
131 | ||
b1cd9b24 | 132 | struct snd_soc_dai ad1980_dai = { |
5f57dc8b | 133 | .name = "AC97", |
67c91513 | 134 | .ac97_control = 1, |
5f57dc8b CC |
135 | .playback = { |
136 | .stream_name = "Playback", | |
137 | .channels_min = 2, | |
9905ed35 | 138 | .channels_max = 6, |
5f57dc8b | 139 | .rates = SNDRV_PCM_RATE_48000, |
33f503c9 | 140 | .formats = SND_SOC_STD_AC97_FMTS, }, |
5f57dc8b CC |
141 | .capture = { |
142 | .stream_name = "Capture", | |
143 | .channels_min = 2, | |
144 | .channels_max = 2, | |
145 | .rates = SNDRV_PCM_RATE_48000, | |
33f503c9 | 146 | .formats = SND_SOC_STD_AC97_FMTS, }, |
5f57dc8b CC |
147 | }; |
148 | EXPORT_SYMBOL_GPL(ad1980_dai); | |
149 | ||
150 | static int ad1980_reset(struct snd_soc_codec *codec, int try_warm) | |
151 | { | |
152 | u16 retry_cnt = 0; | |
153 | ||
154 | retry: | |
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) | |
158 | return 1; | |
159 | } | |
160 | ||
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); | |
166 | ||
167 | if (ac97_read(codec, AC97_RESET) != 0x0090) | |
168 | goto err; | |
169 | return 0; | |
170 | ||
171 | err: | |
172 | while (retry_cnt++ < 10) | |
173 | goto retry; | |
174 | ||
175 | printk(KERN_ERR "AD1980 AC97 reset failed\n"); | |
176 | return -EIO; | |
177 | } | |
178 | ||
179 | static int ad1980_soc_probe(struct platform_device *pdev) | |
180 | { | |
181 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
182 | struct snd_soc_codec *codec; | |
183 | int ret = 0; | |
184 | u16 vendor_id2; | |
9905ed35 | 185 | u16 ext_status; |
5f57dc8b CC |
186 | |
187 | printk(KERN_INFO "AD1980 SoC Audio Codec\n"); | |
188 | ||
6627a653 MB |
189 | socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); |
190 | if (socdev->card->codec == NULL) | |
5f57dc8b | 191 | return -ENOMEM; |
6627a653 | 192 | codec = socdev->card->codec; |
5f57dc8b CC |
193 | mutex_init(&codec->mutex); |
194 | ||
195 | codec->reg_cache = | |
196 | kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL); | |
197 | if (codec->reg_cache == NULL) { | |
198 | ret = -ENOMEM; | |
199 | goto cache_err; | |
200 | } | |
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; | |
208 | codec->num_dai = 1; | |
209 | codec->write = ac97_write; | |
210 | codec->read = ac97_read; | |
211 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
212 | INIT_LIST_HEAD(&codec->dapm_paths); | |
213 | ||
214 | ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0); | |
215 | if (ret < 0) { | |
216 | printk(KERN_ERR "ad1980: failed to register AC97 codec\n"); | |
217 | goto codec_err; | |
218 | } | |
219 | ||
220 | /* register pcms */ | |
221 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
222 | if (ret < 0) | |
223 | goto pcm_err; | |
224 | ||
225 | ||
226 | ret = ad1980_reset(codec, 0); | |
227 | if (ret < 0) { | |
39639fab | 228 | printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n"); |
5f57dc8b CC |
229 | goto reset_err; |
230 | } | |
231 | ||
232 | /* Read out vendor ID to make sure it is ad1980 */ | |
233 | if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144) | |
234 | goto reset_err; | |
235 | ||
236 | vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2); | |
237 | ||
238 | if (vendor_id2 != 0x5370) { | |
239 | if (vendor_id2 != 0x5374) | |
240 | goto reset_err; | |
241 | else | |
242 | printk(KERN_WARNING "ad1980: " | |
243 | "Found AD1981 - only 2/2 IN/OUT Channels " | |
244 | "supported\n"); | |
245 | } | |
246 | ||
9905ed35 CC |
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); | |
253 | ||
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); | |
5f57dc8b | 257 | |
3e8e1952 IM |
258 | snd_soc_add_controls(codec, ad1980_snd_ac97_controls, |
259 | ARRAY_SIZE(ad1980_snd_ac97_controls)); | |
5f57dc8b CC |
260 | |
261 | return 0; | |
262 | ||
263 | reset_err: | |
264 | snd_soc_free_pcms(socdev); | |
265 | ||
266 | pcm_err: | |
267 | snd_soc_free_ac97_codec(codec); | |
268 | ||
269 | codec_err: | |
270 | kfree(codec->reg_cache); | |
271 | ||
272 | cache_err: | |
6627a653 MB |
273 | kfree(socdev->card->codec); |
274 | socdev->card->codec = NULL; | |
5f57dc8b CC |
275 | return ret; |
276 | } | |
277 | ||
278 | static int ad1980_soc_remove(struct platform_device *pdev) | |
279 | { | |
280 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 281 | struct snd_soc_codec *codec = socdev->card->codec; |
5f57dc8b CC |
282 | |
283 | if (codec == NULL) | |
284 | return 0; | |
285 | ||
286 | snd_soc_dapm_free(socdev); | |
287 | snd_soc_free_pcms(socdev); | |
288 | snd_soc_free_ac97_codec(codec); | |
289 | kfree(codec->reg_cache); | |
290 | kfree(codec); | |
291 | return 0; | |
292 | } | |
293 | ||
294 | struct snd_soc_codec_device soc_codec_dev_ad1980 = { | |
295 | .probe = ad1980_soc_probe, | |
296 | .remove = ad1980_soc_remove, | |
297 | }; | |
298 | EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980); | |
299 | ||
300 | MODULE_DESCRIPTION("ASoC ad1980 driver"); | |
301 | MODULE_AUTHOR("Roy Huang, Cliff Cai"); | |
302 | MODULE_LICENSE("GPL"); |