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b545dd92 MB |
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 | ||
344c5ede MB |
39 | #define SYS_AUDIO_RATE 44100 |
40 | #define SYS_MCLK_RATE (SYS_AUDIO_RATE * 256) | |
41 | ||
42 | #define DAI_AP_DSP 0 | |
43 | #define DAI_DSP_CODEC 1 | |
44 | #define DAI_CODEC_CP 2 | |
45 | #define DAI_CODEC_SUB 3 | |
b545dd92 MB |
46 | |
47 | static int bells_set_bias_level(struct snd_soc_card *card, | |
48 | struct snd_soc_dapm_context *dapm, | |
49 | enum snd_soc_bias_level level) | |
50 | { | |
344c5ede | 51 | struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai; |
b545dd92 MB |
52 | struct snd_soc_codec *codec = codec_dai->codec; |
53 | int ret; | |
54 | ||
55 | if (dapm->dev != codec_dai->dev) | |
56 | return 0; | |
57 | ||
58 | switch (level) { | |
59 | case SND_SOC_BIAS_PREPARE: | |
60 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) { | |
61 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, | |
62 | ARIZONA_FLL_SRC_MCLK1, | |
63 | MCLK_RATE, | |
64 | SYSCLK_RATE); | |
65 | if (ret < 0) | |
66 | pr_err("Failed to start FLL: %d\n", ret); | |
67 | ||
68 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, | |
69 | ARIZONA_FLL_SRC_AIF2BCLK, | |
70 | BCLK2_RATE, | |
71 | ASYNCCLK_RATE); | |
72 | if (ret < 0) | |
73 | pr_err("Failed to start FLL: %d\n", ret); | |
74 | } | |
75 | break; | |
76 | ||
77 | default: | |
78 | break; | |
79 | } | |
80 | ||
81 | return 0; | |
82 | } | |
83 | ||
84 | static int bells_set_bias_level_post(struct snd_soc_card *card, | |
85 | struct snd_soc_dapm_context *dapm, | |
86 | enum snd_soc_bias_level level) | |
87 | { | |
344c5ede | 88 | struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai; |
b545dd92 MB |
89 | struct snd_soc_codec *codec = codec_dai->codec; |
90 | int ret; | |
91 | ||
92 | if (dapm->dev != codec_dai->dev) | |
93 | return 0; | |
94 | ||
95 | switch (level) { | |
96 | case SND_SOC_BIAS_STANDBY: | |
97 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0); | |
98 | if (ret < 0) { | |
99 | pr_err("Failed to stop FLL: %d\n", ret); | |
100 | return ret; | |
101 | } | |
102 | ||
103 | ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, 0, 0, 0); | |
104 | if (ret < 0) { | |
105 | pr_err("Failed to stop FLL: %d\n", ret); | |
106 | return ret; | |
107 | } | |
108 | break; | |
109 | ||
110 | default: | |
111 | break; | |
112 | } | |
113 | ||
114 | dapm->bias_level = level; | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | static int bells_late_probe(struct snd_soc_card *card) | |
120 | { | |
344c5ede MB |
121 | struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec; |
122 | struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec; | |
123 | struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai; | |
124 | struct snd_soc_dai *aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai; | |
125 | struct snd_soc_dai *aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai; | |
126 | struct snd_soc_dai *wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai; | |
b545dd92 MB |
127 | int ret; |
128 | ||
344c5ede MB |
129 | ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0); |
130 | if (ret != 0) { | |
131 | dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret); | |
132 | return ret; | |
133 | } | |
134 | ||
b545dd92 MB |
135 | ret = snd_soc_dai_set_sysclk(aif1_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_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0); | |
142 | if (ret != 0) { | |
143 | dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret); | |
144 | return ret; | |
145 | } | |
146 | ||
147 | ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0); | |
148 | if (ret != 0) { | |
149 | dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret); | |
150 | return ret; | |
151 | } | |
152 | ||
153 | ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK, | |
154 | ARIZONA_CLK_SRC_FLL1, SYSCLK_RATE, | |
155 | SND_SOC_CLOCK_IN); | |
156 | if (ret != 0) { | |
157 | dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret); | |
158 | return ret; | |
159 | } | |
160 | ||
161 | ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0, | |
344c5ede | 162 | SYS_MCLK_RATE, SND_SOC_CLOCK_OUT); |
b545dd92 MB |
163 | if (ret != 0) { |
164 | dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret); | |
165 | return ret; | |
166 | } | |
167 | ||
168 | ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK, | |
169 | ARIZONA_CLK_SRC_FLL2, ASYNCCLK_RATE, | |
170 | SND_SOC_CLOCK_IN); | |
171 | if (ret != 0) { | |
172 | dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret); | |
173 | return ret; | |
174 | } | |
175 | ||
176 | ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK, | |
344c5ede | 177 | 0, SYS_MCLK_RATE, 0); |
b545dd92 MB |
178 | if (ret != 0) { |
179 | dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret); | |
180 | return ret; | |
181 | } | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
186 | static const struct snd_soc_pcm_stream baseband_params = { | |
187 | .formats = SNDRV_PCM_FMTBIT_S32_LE, | |
188 | .rate_min = 8000, | |
189 | .rate_max = 8000, | |
190 | .channels_min = 2, | |
191 | .channels_max = 2, | |
192 | }; | |
193 | ||
194 | static const struct snd_soc_pcm_stream sub_params = { | |
195 | .formats = SNDRV_PCM_FMTBIT_S32_LE, | |
344c5ede MB |
196 | .rate_min = SYS_AUDIO_RATE, |
197 | .rate_max = SYS_AUDIO_RATE, | |
b545dd92 MB |
198 | .channels_min = 2, |
199 | .channels_max = 2, | |
200 | }; | |
201 | ||
202 | static struct snd_soc_dai_link bells_dai_wm5102[] = { | |
203 | { | |
344c5ede MB |
204 | .name = "CPU-DSP", |
205 | .stream_name = "CPU-DSP", | |
b545dd92 | 206 | .cpu_dai_name = "samsung-i2s.0", |
344c5ede | 207 | .codec_dai_name = "wm0010-sdi1", |
b545dd92 | 208 | .platform_name = "samsung-audio", |
344c5ede MB |
209 | .codec_name = "spi0.0", |
210 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
211 | | SND_SOC_DAIFMT_CBM_CFM, | |
212 | }, | |
213 | { | |
214 | .name = "DSP-CODEC", | |
215 | .stream_name = "DSP-CODEC", | |
216 | .cpu_dai_name = "wm0010-sdi2", | |
217 | .codec_dai_name = "wm5102-aif1", | |
b545dd92 MB |
218 | .codec_name = "wm5102-codec", |
219 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
220 | | SND_SOC_DAIFMT_CBM_CFM, | |
344c5ede MB |
221 | .params = &sub_params, |
222 | .ignore_suspend = 1, | |
b545dd92 MB |
223 | }, |
224 | { | |
225 | .name = "Baseband", | |
226 | .stream_name = "Baseband", | |
227 | .cpu_dai_name = "wm5102-aif2", | |
228 | .codec_dai_name = "wm1250-ev1", | |
229 | .codec_name = "wm1250-ev1.1-0027", | |
230 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
231 | | SND_SOC_DAIFMT_CBM_CFM, | |
232 | .ignore_suspend = 1, | |
233 | .params = &baseband_params, | |
234 | }, | |
235 | { | |
236 | .name = "Sub", | |
237 | .stream_name = "Sub", | |
238 | .cpu_dai_name = "wm5102-aif3", | |
239 | .codec_dai_name = "wm9081-hifi", | |
240 | .codec_name = "wm9081.1-006c", | |
241 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
242 | | SND_SOC_DAIFMT_CBS_CFS, | |
243 | .ignore_suspend = 1, | |
244 | .params = &sub_params, | |
245 | }, | |
246 | }; | |
247 | ||
248 | static struct snd_soc_dai_link bells_dai_wm5110[] = { | |
249 | { | |
344c5ede MB |
250 | .name = "CPU-DSP", |
251 | .stream_name = "CPU-DSP", | |
b545dd92 | 252 | .cpu_dai_name = "samsung-i2s.0", |
344c5ede | 253 | .codec_dai_name = "wm0010-sdi1", |
b545dd92 | 254 | .platform_name = "samsung-audio", |
344c5ede MB |
255 | .codec_name = "spi0.0", |
256 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
257 | | SND_SOC_DAIFMT_CBM_CFM, | |
258 | }, | |
259 | { | |
260 | .name = "DSP-CODEC", | |
261 | .stream_name = "DSP-CODEC", | |
262 | .cpu_dai_name = "wm0010-sdi2", | |
263 | .codec_dai_name = "wm5110-aif1", | |
b545dd92 MB |
264 | .codec_name = "wm5110-codec", |
265 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
266 | | SND_SOC_DAIFMT_CBM_CFM, | |
344c5ede MB |
267 | .params = &sub_params, |
268 | .ignore_suspend = 1, | |
b545dd92 MB |
269 | }, |
270 | { | |
271 | .name = "Baseband", | |
272 | .stream_name = "Baseband", | |
273 | .cpu_dai_name = "wm5110-aif2", | |
274 | .codec_dai_name = "wm1250-ev1", | |
275 | .codec_name = "wm1250-ev1.1-0027", | |
276 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
277 | | SND_SOC_DAIFMT_CBM_CFM, | |
278 | .ignore_suspend = 1, | |
279 | .params = &baseband_params, | |
280 | }, | |
281 | { | |
282 | .name = "Sub", | |
283 | .stream_name = "Sub", | |
ffaa839b | 284 | .cpu_dai_name = "wm5110-aif3", |
b545dd92 MB |
285 | .codec_dai_name = "wm9081-hifi", |
286 | .codec_name = "wm9081.1-006c", | |
287 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
288 | | SND_SOC_DAIFMT_CBS_CFS, | |
289 | .ignore_suspend = 1, | |
290 | .params = &sub_params, | |
291 | }, | |
292 | }; | |
293 | ||
294 | static struct snd_soc_codec_conf bells_codec_conf[] = { | |
295 | { | |
296 | .dev_name = "wm9081.1-006c", | |
297 | .name_prefix = "Sub", | |
298 | }, | |
299 | }; | |
300 | ||
301 | static struct snd_soc_dapm_route bells_routes[] = { | |
302 | { "Sub CLK_SYS", NULL, "OPCLK" }, | |
303 | }; | |
304 | ||
305 | static struct snd_soc_card bells_cards[] = { | |
306 | { | |
307 | .name = "Bells WM5102", | |
308 | .owner = THIS_MODULE, | |
309 | .dai_link = bells_dai_wm5102, | |
310 | .num_links = ARRAY_SIZE(bells_dai_wm5102), | |
311 | .codec_conf = bells_codec_conf, | |
312 | .num_configs = ARRAY_SIZE(bells_codec_conf), | |
313 | ||
314 | .late_probe = bells_late_probe, | |
315 | ||
316 | .dapm_routes = bells_routes, | |
317 | .num_dapm_routes = ARRAY_SIZE(bells_routes), | |
318 | ||
319 | .set_bias_level = bells_set_bias_level, | |
320 | .set_bias_level_post = bells_set_bias_level_post, | |
321 | }, | |
322 | { | |
323 | .name = "Bells WM5110", | |
324 | .owner = THIS_MODULE, | |
325 | .dai_link = bells_dai_wm5110, | |
326 | .num_links = ARRAY_SIZE(bells_dai_wm5110), | |
327 | .codec_conf = bells_codec_conf, | |
328 | .num_configs = ARRAY_SIZE(bells_codec_conf), | |
329 | ||
330 | .late_probe = bells_late_probe, | |
331 | ||
332 | .dapm_routes = bells_routes, | |
333 | .num_dapm_routes = ARRAY_SIZE(bells_routes), | |
334 | ||
335 | .set_bias_level = bells_set_bias_level, | |
336 | .set_bias_level_post = bells_set_bias_level_post, | |
337 | }, | |
338 | }; | |
339 | ||
340 | ||
341 | static __devinit int bells_probe(struct platform_device *pdev) | |
342 | { | |
343 | int ret; | |
344 | ||
345 | bells_cards[pdev->id].dev = &pdev->dev; | |
346 | ||
347 | ret = snd_soc_register_card(&bells_cards[pdev->id]); | |
348 | if (ret) { | |
349 | dev_err(&pdev->dev, | |
350 | "snd_soc_register_card(%s) failed: %d\n", | |
351 | bells_cards[pdev->id].name, ret); | |
352 | return ret; | |
353 | } | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int __devexit bells_remove(struct platform_device *pdev) | |
359 | { | |
360 | snd_soc_unregister_card(&bells_cards[pdev->id]); | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
365 | static struct platform_driver bells_driver = { | |
366 | .driver = { | |
367 | .name = "bells", | |
368 | .owner = THIS_MODULE, | |
369 | .pm = &snd_soc_pm_ops, | |
370 | }, | |
371 | .probe = bells_probe, | |
372 | .remove = __devexit_p(bells_remove), | |
373 | }; | |
374 | ||
375 | module_platform_driver(bells_driver); | |
376 | ||
377 | MODULE_DESCRIPTION("Bells audio support"); | |
378 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
379 | MODULE_LICENSE("GPL"); | |
380 | MODULE_ALIAS("platform:bells"); |