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1 | /* |
2 | * Bells audio support | |
3 | * | |
4 | * Copyright 2012 Wolfson Microelectronics | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | */ | |
11 | ||
12 | #include <sound/soc.h> | |
13 | #include <sound/soc-dapm.h> | |
14 | #include <sound/jack.h> | |
15 | #include <linux/gpio.h> | |
16 | #include <linux/module.h> | |
17 | ||
18 | #include "../codecs/wm5102.h" | |
19 | #include "../codecs/wm9081.h" | |
20 | ||
21 | /* | |
22 | * 44.1kHz based clocks for the SYSCLK domain, use a very high clock | |
23 | * to allow all the DSP functionality to be enabled if desired. | |
24 | */ | |
25 | #define SYSCLK_RATE (44100 * 1024) | |
26 | ||
27 | /* 48kHz based clocks for the ASYNC domain */ | |
28 | #define ASYNCCLK_RATE (48000 * 512) | |
29 | ||
30 | /* BCLK2 is fixed at this currently */ | |
31 | #define BCLK2_RATE (64 * 8000) | |
32 | ||
33 | /* | |
34 | * Expect a 24.576MHz crystal if one is fitted (the driver will function | |
35 | * if this is not fitted). | |
36 | */ | |
37 | #define MCLK_RATE 24576000 | |
38 | ||
39 | #define WM9081_AUDIO_RATE 44100 | |
40 | #define WM9081_MCLK_RATE (WM9081_AUDIO_RATE * 256) | |
41 | ||
42 | static int bells_set_bias_level(struct snd_soc_card *card, | |
43 | struct snd_soc_dapm_context *dapm, | |
44 | enum snd_soc_bias_level level) | |
45 | { | |
46 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | |
47 | struct snd_soc_codec *codec = codec_dai->codec; | |
48 | int ret; | |
49 | ||
50 | if (dapm->dev != codec_dai->dev) | |
51 | return 0; | |
52 | ||
53 | switch (level) { | |
54 | case SND_SOC_BIAS_PREPARE: | |
55 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) { | |
56 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, | |
57 | ARIZONA_FLL_SRC_MCLK1, | |
58 | MCLK_RATE, | |
59 | SYSCLK_RATE); | |
60 | if (ret < 0) | |
61 | pr_err("Failed to start FLL: %d\n", ret); | |
62 | ||
63 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, | |
64 | ARIZONA_FLL_SRC_AIF2BCLK, | |
65 | BCLK2_RATE, | |
66 | ASYNCCLK_RATE); | |
67 | if (ret < 0) | |
68 | pr_err("Failed to start FLL: %d\n", ret); | |
69 | } | |
70 | break; | |
71 | ||
72 | default: | |
73 | break; | |
74 | } | |
75 | ||
76 | return 0; | |
77 | } | |
78 | ||
79 | static int bells_set_bias_level_post(struct snd_soc_card *card, | |
80 | struct snd_soc_dapm_context *dapm, | |
81 | enum snd_soc_bias_level level) | |
82 | { | |
83 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | |
84 | struct snd_soc_codec *codec = codec_dai->codec; | |
85 | int ret; | |
86 | ||
87 | if (dapm->dev != codec_dai->dev) | |
88 | return 0; | |
89 | ||
90 | switch (level) { | |
91 | case SND_SOC_BIAS_STANDBY: | |
92 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0); | |
93 | if (ret < 0) { | |
94 | pr_err("Failed to stop FLL: %d\n", ret); | |
95 | return ret; | |
96 | } | |
97 | ||
98 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, 0, 0, 0); | |
99 | if (ret < 0) { | |
100 | pr_err("Failed to stop FLL: %d\n", ret); | |
101 | return ret; | |
102 | } | |
103 | break; | |
104 | ||
105 | default: | |
106 | break; | |
107 | } | |
108 | ||
109 | dapm->bias_level = level; | |
110 | ||
111 | return 0; | |
112 | } | |
113 | ||
114 | static int bells_late_probe(struct snd_soc_card *card) | |
115 | { | |
116 | struct snd_soc_codec *codec = card->rtd[0].codec; | |
117 | struct snd_soc_dai *aif1_dai = card->rtd[0].codec_dai; | |
118 | struct snd_soc_dai *aif2_dai = card->rtd[1].cpu_dai; | |
119 | struct snd_soc_dai *aif3_dai = card->rtd[2].cpu_dai; | |
120 | struct snd_soc_dai *wm9081_dai = card->rtd[2].codec_dai; | |
121 | int ret; | |
122 | ||
123 | ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0); | |
124 | if (ret != 0) { | |
125 | dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret); | |
126 | return ret; | |
127 | } | |
128 | ||
129 | ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0); | |
130 | if (ret != 0) { | |
131 | dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret); | |
132 | return ret; | |
133 | } | |
134 | ||
135 | ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0); | |
136 | if (ret != 0) { | |
137 | dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret); | |
138 | return ret; | |
139 | } | |
140 | ||
141 | ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK, | |
142 | ARIZONA_CLK_SRC_FLL1, SYSCLK_RATE, | |
143 | SND_SOC_CLOCK_IN); | |
144 | if (ret != 0) { | |
145 | dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret); | |
146 | return ret; | |
147 | } | |
148 | ||
149 | ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0, | |
150 | WM9081_MCLK_RATE, SND_SOC_CLOCK_OUT); | |
151 | if (ret != 0) { | |
152 | dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret); | |
153 | return ret; | |
154 | } | |
155 | ||
156 | ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK, | |
157 | ARIZONA_CLK_SRC_FLL2, ASYNCCLK_RATE, | |
158 | SND_SOC_CLOCK_IN); | |
159 | if (ret != 0) { | |
160 | dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret); | |
161 | return ret; | |
162 | } | |
163 | ||
164 | ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK, | |
165 | 0, WM9081_MCLK_RATE, 0); | |
166 | if (ret != 0) { | |
167 | dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret); | |
168 | return ret; | |
169 | } | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | static const struct snd_soc_pcm_stream baseband_params = { | |
175 | .formats = SNDRV_PCM_FMTBIT_S32_LE, | |
176 | .rate_min = 8000, | |
177 | .rate_max = 8000, | |
178 | .channels_min = 2, | |
179 | .channels_max = 2, | |
180 | }; | |
181 | ||
182 | static const struct snd_soc_pcm_stream sub_params = { | |
183 | .formats = SNDRV_PCM_FMTBIT_S32_LE, | |
184 | .rate_min = WM9081_AUDIO_RATE, | |
185 | .rate_max = WM9081_AUDIO_RATE, | |
186 | .channels_min = 2, | |
187 | .channels_max = 2, | |
188 | }; | |
189 | ||
190 | static struct snd_soc_dai_link bells_dai_wm5102[] = { | |
191 | { | |
192 | .name = "CPU", | |
193 | .stream_name = "CPU", | |
194 | .cpu_dai_name = "samsung-i2s.0", | |
195 | .codec_dai_name = "wm5102-aif1", | |
196 | .platform_name = "samsung-audio", | |
197 | .codec_name = "wm5102-codec", | |
198 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
199 | | SND_SOC_DAIFMT_CBM_CFM, | |
200 | }, | |
201 | { | |
202 | .name = "Baseband", | |
203 | .stream_name = "Baseband", | |
204 | .cpu_dai_name = "wm5102-aif2", | |
205 | .codec_dai_name = "wm1250-ev1", | |
206 | .codec_name = "wm1250-ev1.1-0027", | |
207 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
208 | | SND_SOC_DAIFMT_CBM_CFM, | |
209 | .ignore_suspend = 1, | |
210 | .params = &baseband_params, | |
211 | }, | |
212 | { | |
213 | .name = "Sub", | |
214 | .stream_name = "Sub", | |
c3c9b370 | 215 | .cpu_dai_name = "wm5102-aif3", |
b545dd92 MB |
216 | .codec_dai_name = "wm9081-hifi", |
217 | .codec_name = "wm9081.1-006c", | |
218 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
219 | | SND_SOC_DAIFMT_CBS_CFS, | |
220 | .ignore_suspend = 1, | |
221 | .params = &sub_params, | |
222 | }, | |
223 | }; | |
224 | ||
225 | static struct snd_soc_dai_link bells_dai_wm5110[] = { | |
226 | { | |
227 | .name = "CPU", | |
228 | .stream_name = "CPU", | |
229 | .cpu_dai_name = "samsung-i2s.0", | |
230 | .codec_dai_name = "wm5110-aif1", | |
231 | .platform_name = "samsung-audio", | |
232 | .codec_name = "wm5110-codec", | |
233 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
234 | | SND_SOC_DAIFMT_CBM_CFM, | |
235 | }, | |
236 | { | |
237 | .name = "Baseband", | |
238 | .stream_name = "Baseband", | |
239 | .cpu_dai_name = "wm5110-aif2", | |
240 | .codec_dai_name = "wm1250-ev1", | |
241 | .codec_name = "wm1250-ev1.1-0027", | |
242 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
243 | | SND_SOC_DAIFMT_CBM_CFM, | |
244 | .ignore_suspend = 1, | |
245 | .params = &baseband_params, | |
246 | }, | |
247 | { | |
248 | .name = "Sub", | |
249 | .stream_name = "Sub", | |
c3c9b370 | 250 | .cpu_dai_name = "wm5110-aif3", |
b545dd92 MB |
251 | .codec_dai_name = "wm9081-hifi", |
252 | .codec_name = "wm9081.1-006c", | |
253 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
254 | | SND_SOC_DAIFMT_CBS_CFS, | |
255 | .ignore_suspend = 1, | |
256 | .params = &sub_params, | |
257 | }, | |
258 | }; | |
259 | ||
260 | static struct snd_soc_codec_conf bells_codec_conf[] = { | |
261 | { | |
262 | .dev_name = "wm9081.1-006c", | |
263 | .name_prefix = "Sub", | |
264 | }, | |
265 | }; | |
266 | ||
267 | static struct snd_soc_dapm_route bells_routes[] = { | |
268 | { "Sub CLK_SYS", NULL, "OPCLK" }, | |
269 | }; | |
270 | ||
271 | static struct snd_soc_card bells_cards[] = { | |
272 | { | |
273 | .name = "Bells WM5102", | |
274 | .owner = THIS_MODULE, | |
275 | .dai_link = bells_dai_wm5102, | |
276 | .num_links = ARRAY_SIZE(bells_dai_wm5102), | |
277 | .codec_conf = bells_codec_conf, | |
278 | .num_configs = ARRAY_SIZE(bells_codec_conf), | |
279 | ||
280 | .late_probe = bells_late_probe, | |
281 | ||
282 | .dapm_routes = bells_routes, | |
283 | .num_dapm_routes = ARRAY_SIZE(bells_routes), | |
284 | ||
285 | .set_bias_level = bells_set_bias_level, | |
286 | .set_bias_level_post = bells_set_bias_level_post, | |
287 | }, | |
288 | { | |
289 | .name = "Bells WM5110", | |
290 | .owner = THIS_MODULE, | |
291 | .dai_link = bells_dai_wm5110, | |
292 | .num_links = ARRAY_SIZE(bells_dai_wm5110), | |
293 | .codec_conf = bells_codec_conf, | |
294 | .num_configs = ARRAY_SIZE(bells_codec_conf), | |
295 | ||
296 | .late_probe = bells_late_probe, | |
297 | ||
298 | .dapm_routes = bells_routes, | |
299 | .num_dapm_routes = ARRAY_SIZE(bells_routes), | |
300 | ||
301 | .set_bias_level = bells_set_bias_level, | |
302 | .set_bias_level_post = bells_set_bias_level_post, | |
303 | }, | |
304 | }; | |
305 | ||
306 | ||
307 | static __devinit int bells_probe(struct platform_device *pdev) | |
308 | { | |
309 | int ret; | |
310 | ||
311 | bells_cards[pdev->id].dev = &pdev->dev; | |
312 | ||
313 | ret = snd_soc_register_card(&bells_cards[pdev->id]); | |
314 | if (ret) { | |
315 | dev_err(&pdev->dev, | |
316 | "snd_soc_register_card(%s) failed: %d\n", | |
317 | bells_cards[pdev->id].name, ret); | |
318 | return ret; | |
319 | } | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
324 | static int __devexit bells_remove(struct platform_device *pdev) | |
325 | { | |
326 | snd_soc_unregister_card(&bells_cards[pdev->id]); | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | static struct platform_driver bells_driver = { | |
332 | .driver = { | |
333 | .name = "bells", | |
334 | .owner = THIS_MODULE, | |
335 | .pm = &snd_soc_pm_ops, | |
336 | }, | |
337 | .probe = bells_probe, | |
338 | .remove = __devexit_p(bells_remove), | |
339 | }; | |
340 | ||
341 | module_platform_driver(bells_driver); | |
342 | ||
343 | MODULE_DESCRIPTION("Bells audio support"); | |
344 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
345 | MODULE_LICENSE("GPL"); | |
346 | MODULE_ALIAS("platform:bells"); |