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1 | /* |
2 | * wm8510.c -- WM8510 ALSA Soc Audio driver | |
3 | * | |
4 | * Copyright 2006 Wolfson Microelectronics PLC. | |
5 | * | |
d331124d | 6 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
5d421516 MB |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/moduleparam.h> | |
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/pm.h> | |
19 | #include <linux/i2c.h> | |
20 | #include <linux/platform_device.h> | |
5e357952 | 21 | #include <linux/spi/spi.h> |
5d421516 MB |
22 | #include <sound/core.h> |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/soc-dapm.h> | |
27 | #include <sound/initval.h> | |
28 | ||
29 | #include "wm8510.h" | |
30 | ||
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31 | #define WM8510_VERSION "0.6" |
32 | ||
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33 | struct snd_soc_codec_device soc_codec_dev_wm8510; |
34 | ||
35 | /* | |
36 | * wm8510 register cache | |
37 | * We can't read the WM8510 register space when we are | |
38 | * using 2 wire for device control, so we cache them instead. | |
39 | */ | |
40 | static const u16 wm8510_reg[WM8510_CACHEREGNUM] = { | |
41 | 0x0000, 0x0000, 0x0000, 0x0000, | |
42 | 0x0050, 0x0000, 0x0140, 0x0000, | |
43 | 0x0000, 0x0000, 0x0000, 0x00ff, | |
44 | 0x0000, 0x0000, 0x0100, 0x00ff, | |
45 | 0x0000, 0x0000, 0x012c, 0x002c, | |
46 | 0x002c, 0x002c, 0x002c, 0x0000, | |
47 | 0x0032, 0x0000, 0x0000, 0x0000, | |
48 | 0x0000, 0x0000, 0x0000, 0x0000, | |
49 | 0x0038, 0x000b, 0x0032, 0x0000, | |
50 | 0x0008, 0x000c, 0x0093, 0x00e9, | |
51 | 0x0000, 0x0000, 0x0000, 0x0000, | |
52 | 0x0003, 0x0010, 0x0000, 0x0000, | |
53 | 0x0000, 0x0002, 0x0001, 0x0000, | |
54 | 0x0000, 0x0000, 0x0039, 0x0000, | |
05a076de | 55 | 0x0001, |
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56 | }; |
57 | ||
09af98b0 MB |
58 | #define WM8510_POWER1_BIASEN 0x08 |
59 | #define WM8510_POWER1_BUFIOEN 0x10 | |
60 | ||
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61 | /* |
62 | * read wm8510 register cache | |
63 | */ | |
64 | static inline unsigned int wm8510_read_reg_cache(struct snd_soc_codec *codec, | |
65 | unsigned int reg) | |
66 | { | |
67 | u16 *cache = codec->reg_cache; | |
68 | if (reg == WM8510_RESET) | |
69 | return 0; | |
70 | if (reg >= WM8510_CACHEREGNUM) | |
71 | return -1; | |
72 | return cache[reg]; | |
73 | } | |
74 | ||
75 | /* | |
76 | * write wm8510 register cache | |
77 | */ | |
78 | static inline void wm8510_write_reg_cache(struct snd_soc_codec *codec, | |
79 | u16 reg, unsigned int value) | |
80 | { | |
81 | u16 *cache = codec->reg_cache; | |
82 | if (reg >= WM8510_CACHEREGNUM) | |
83 | return; | |
84 | cache[reg] = value; | |
85 | } | |
86 | ||
87 | /* | |
88 | * write to the WM8510 register space | |
89 | */ | |
90 | static int wm8510_write(struct snd_soc_codec *codec, unsigned int reg, | |
91 | unsigned int value) | |
92 | { | |
93 | u8 data[2]; | |
94 | ||
95 | /* data is | |
96 | * D15..D9 WM8510 register offset | |
97 | * D8...D0 register data | |
98 | */ | |
99 | data[0] = (reg << 1) | ((value >> 8) & 0x0001); | |
100 | data[1] = value & 0x00ff; | |
101 | ||
102 | wm8510_write_reg_cache(codec, reg, value); | |
103 | if (codec->hw_write(codec->control_data, data, 2) == 2) | |
104 | return 0; | |
105 | else | |
106 | return -EIO; | |
107 | } | |
108 | ||
109 | #define wm8510_reset(c) wm8510_write(c, WM8510_RESET, 0) | |
110 | ||
111 | static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" }; | |
112 | static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; | |
113 | static const char *wm8510_alc[] = { "ALC", "Limiter" }; | |
114 | ||
115 | static const struct soc_enum wm8510_enum[] = { | |
116 | SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */ | |
117 | SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */ | |
118 | SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp), | |
119 | SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc), | |
120 | }; | |
121 | ||
122 | static const struct snd_kcontrol_new wm8510_snd_controls[] = { | |
123 | ||
124 | SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0), | |
125 | ||
126 | SOC_ENUM("DAC Companding", wm8510_enum[1]), | |
127 | SOC_ENUM("ADC Companding", wm8510_enum[0]), | |
128 | ||
129 | SOC_ENUM("Playback De-emphasis", wm8510_enum[2]), | |
130 | SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0), | |
131 | ||
132 | SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0), | |
133 | ||
134 | SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0), | |
135 | SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0), | |
136 | SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0), | |
137 | ||
138 | SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0), | |
139 | ||
140 | SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0), | |
141 | SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0), | |
142 | SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0), | |
143 | ||
144 | SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0), | |
145 | SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0), | |
146 | ||
147 | SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0), | |
148 | SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0), | |
149 | SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0), | |
150 | ||
151 | SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0), | |
152 | SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0), | |
153 | SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0), | |
154 | ||
155 | SOC_ENUM("ALC Capture Mode", wm8510_enum[3]), | |
156 | SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0), | |
157 | SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0), | |
158 | ||
159 | SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0), | |
160 | SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0), | |
161 | ||
162 | SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0), | |
163 | SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0), | |
164 | ||
165 | SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0), | |
166 | SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1), | |
167 | SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0), | |
168 | SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0), | |
169 | ||
170 | SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0), | |
171 | SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1), | |
172 | }; | |
173 | ||
174 | /* add non dapm controls */ | |
175 | static int wm8510_add_controls(struct snd_soc_codec *codec) | |
176 | { | |
177 | int err, i; | |
178 | ||
179 | for (i = 0; i < ARRAY_SIZE(wm8510_snd_controls); i++) { | |
180 | err = snd_ctl_add(codec->card, | |
181 | snd_soc_cnew(&wm8510_snd_controls[i], codec, | |
182 | NULL)); | |
183 | if (err < 0) | |
184 | return err; | |
185 | } | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | /* Speaker Output Mixer */ | |
191 | static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = { | |
192 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0), | |
193 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0), | |
194 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0), | |
195 | }; | |
196 | ||
197 | /* Mono Output Mixer */ | |
198 | static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = { | |
199 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0), | |
200 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0), | |
201 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0), | |
202 | }; | |
203 | ||
204 | static const struct snd_kcontrol_new wm8510_boost_controls[] = { | |
8ae23ec3 | 205 | SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1), |
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206 | SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0), |
207 | SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0), | |
208 | }; | |
209 | ||
210 | static const struct snd_kcontrol_new wm8510_micpga_controls[] = { | |
211 | SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0), | |
212 | SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0), | |
213 | SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0), | |
214 | }; | |
215 | ||
216 | static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = { | |
217 | SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0, | |
218 | &wm8510_speaker_mixer_controls[0], | |
219 | ARRAY_SIZE(wm8510_speaker_mixer_controls)), | |
220 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0, | |
221 | &wm8510_mono_mixer_controls[0], | |
222 | ARRAY_SIZE(wm8510_mono_mixer_controls)), | |
223 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0), | |
224 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0), | |
225 | SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0), | |
226 | SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0), | |
227 | SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0), | |
228 | SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0), | |
229 | ||
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230 | SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0, |
231 | &wm8510_micpga_controls[0], | |
232 | ARRAY_SIZE(wm8510_micpga_controls)), | |
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233 | SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0, |
234 | &wm8510_boost_controls[0], | |
235 | ARRAY_SIZE(wm8510_boost_controls)), | |
236 | ||
237 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0), | |
238 | ||
239 | SND_SOC_DAPM_INPUT("MICN"), | |
240 | SND_SOC_DAPM_INPUT("MICP"), | |
241 | SND_SOC_DAPM_INPUT("AUX"), | |
242 | SND_SOC_DAPM_OUTPUT("MONOOUT"), | |
243 | SND_SOC_DAPM_OUTPUT("SPKOUTP"), | |
244 | SND_SOC_DAPM_OUTPUT("SPKOUTN"), | |
245 | }; | |
246 | ||
247 | static const struct snd_soc_dapm_route audio_map[] = { | |
248 | /* Mono output mixer */ | |
249 | {"Mono Mixer", "PCM Playback Switch", "DAC"}, | |
250 | {"Mono Mixer", "Aux Playback Switch", "Aux Input"}, | |
251 | {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
252 | ||
253 | /* Speaker output mixer */ | |
254 | {"Speaker Mixer", "PCM Playback Switch", "DAC"}, | |
255 | {"Speaker Mixer", "Aux Playback Switch", "Aux Input"}, | |
256 | {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
257 | ||
258 | /* Outputs */ | |
259 | {"Mono Out", NULL, "Mono Mixer"}, | |
260 | {"MONOOUT", NULL, "Mono Out"}, | |
261 | {"SpkN Out", NULL, "Speaker Mixer"}, | |
262 | {"SpkP Out", NULL, "Speaker Mixer"}, | |
263 | {"SPKOUTN", NULL, "SpkN Out"}, | |
264 | {"SPKOUTP", NULL, "SpkP Out"}, | |
265 | ||
266 | /* Microphone PGA */ | |
267 | {"Mic PGA", "MICN Switch", "MICN"}, | |
268 | {"Mic PGA", "MICP Switch", "MICP"}, | |
269 | { "Mic PGA", "AUX Switch", "Aux Input" }, | |
270 | ||
271 | /* Boost Mixer */ | |
272 | {"Boost Mixer", "Mic PGA Switch", "Mic PGA"}, | |
273 | {"Boost Mixer", "Mic Volume", "MICP"}, | |
274 | {"Boost Mixer", "Aux Volume", "Aux Input"}, | |
275 | ||
276 | {"ADC", NULL, "Boost Mixer"}, | |
277 | }; | |
278 | ||
279 | static int wm8510_add_widgets(struct snd_soc_codec *codec) | |
280 | { | |
281 | snd_soc_dapm_new_controls(codec, wm8510_dapm_widgets, | |
282 | ARRAY_SIZE(wm8510_dapm_widgets)); | |
283 | ||
284 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
285 | ||
286 | snd_soc_dapm_new_widgets(codec); | |
287 | return 0; | |
288 | } | |
289 | ||
290 | struct pll_ { | |
291 | unsigned int pre_div:4; /* prescale - 1 */ | |
292 | unsigned int n:4; | |
293 | unsigned int k; | |
294 | }; | |
295 | ||
296 | static struct pll_ pll_div; | |
297 | ||
298 | /* The size in bits of the pll divide multiplied by 10 | |
299 | * to allow rounding later */ | |
300 | #define FIXED_PLL_SIZE ((1 << 24) * 10) | |
301 | ||
302 | static void pll_factors(unsigned int target, unsigned int source) | |
303 | { | |
304 | unsigned long long Kpart; | |
305 | unsigned int K, Ndiv, Nmod; | |
306 | ||
307 | Ndiv = target / source; | |
308 | if (Ndiv < 6) { | |
309 | source >>= 1; | |
310 | pll_div.pre_div = 1; | |
311 | Ndiv = target / source; | |
312 | } else | |
313 | pll_div.pre_div = 0; | |
314 | ||
315 | if ((Ndiv < 6) || (Ndiv > 12)) | |
316 | printk(KERN_WARNING | |
317 | "WM8510 N value %d outwith recommended range!d\n", | |
318 | Ndiv); | |
319 | ||
320 | pll_div.n = Ndiv; | |
321 | Nmod = target % source; | |
322 | Kpart = FIXED_PLL_SIZE * (long long)Nmod; | |
323 | ||
324 | do_div(Kpart, source); | |
325 | ||
326 | K = Kpart & 0xFFFFFFFF; | |
327 | ||
328 | /* Check if we need to round */ | |
329 | if ((K % 10) >= 5) | |
330 | K += 5; | |
331 | ||
332 | /* Move down to proper range now rounding is done */ | |
333 | K /= 10; | |
334 | ||
335 | pll_div.k = K; | |
336 | } | |
337 | ||
e550e17f | 338 | static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, |
5d421516 MB |
339 | int pll_id, unsigned int freq_in, unsigned int freq_out) |
340 | { | |
341 | struct snd_soc_codec *codec = codec_dai->codec; | |
342 | u16 reg; | |
343 | ||
344 | if (freq_in == 0 || freq_out == 0) { | |
345 | /* Clock CODEC directly from MCLK */ | |
346 | reg = wm8510_read_reg_cache(codec, WM8510_CLOCK); | |
347 | wm8510_write(codec, WM8510_CLOCK, reg & 0x0ff); | |
348 | ||
349 | /* Turn off PLL */ | |
350 | reg = wm8510_read_reg_cache(codec, WM8510_POWER1); | |
351 | wm8510_write(codec, WM8510_POWER1, reg & 0x1df); | |
352 | return 0; | |
353 | } | |
354 | ||
355 | pll_factors(freq_out*8, freq_in); | |
356 | ||
357 | wm8510_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n); | |
358 | wm8510_write(codec, WM8510_PLLK1, pll_div.k >> 18); | |
359 | wm8510_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff); | |
360 | wm8510_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff); | |
361 | reg = wm8510_read_reg_cache(codec, WM8510_POWER1); | |
362 | wm8510_write(codec, WM8510_POWER1, reg | 0x020); | |
363 | ||
364 | /* Run CODEC from PLL instead of MCLK */ | |
365 | reg = wm8510_read_reg_cache(codec, WM8510_CLOCK); | |
366 | wm8510_write(codec, WM8510_CLOCK, reg | 0x100); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | /* | |
372 | * Configure WM8510 clock dividers. | |
373 | */ | |
e550e17f | 374 | static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai, |
5d421516 MB |
375 | int div_id, int div) |
376 | { | |
377 | struct snd_soc_codec *codec = codec_dai->codec; | |
378 | u16 reg; | |
379 | ||
380 | switch (div_id) { | |
381 | case WM8510_OPCLKDIV: | |
382 | reg = wm8510_read_reg_cache(codec, WM8510_GPIO) & 0x1cf; | |
383 | wm8510_write(codec, WM8510_GPIO, reg | div); | |
384 | break; | |
385 | case WM8510_MCLKDIV: | |
386 | reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1f; | |
387 | wm8510_write(codec, WM8510_CLOCK, reg | div); | |
388 | break; | |
389 | case WM8510_ADCCLK: | |
390 | reg = wm8510_read_reg_cache(codec, WM8510_ADC) & 0x1f7; | |
391 | wm8510_write(codec, WM8510_ADC, reg | div); | |
392 | break; | |
393 | case WM8510_DACCLK: | |
394 | reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0x1f7; | |
395 | wm8510_write(codec, WM8510_DAC, reg | div); | |
396 | break; | |
397 | case WM8510_BCLKDIV: | |
398 | reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1e3; | |
399 | wm8510_write(codec, WM8510_CLOCK, reg | div); | |
400 | break; | |
401 | default: | |
402 | return -EINVAL; | |
403 | } | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
e550e17f | 408 | static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai, |
5d421516 MB |
409 | unsigned int fmt) |
410 | { | |
411 | struct snd_soc_codec *codec = codec_dai->codec; | |
412 | u16 iface = 0; | |
413 | u16 clk = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1fe; | |
414 | ||
415 | /* set master/slave audio interface */ | |
416 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
417 | case SND_SOC_DAIFMT_CBM_CFM: | |
418 | clk |= 0x0001; | |
419 | break; | |
420 | case SND_SOC_DAIFMT_CBS_CFS: | |
421 | break; | |
422 | default: | |
423 | return -EINVAL; | |
424 | } | |
425 | ||
426 | /* interface format */ | |
427 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
428 | case SND_SOC_DAIFMT_I2S: | |
429 | iface |= 0x0010; | |
430 | break; | |
431 | case SND_SOC_DAIFMT_RIGHT_J: | |
432 | break; | |
433 | case SND_SOC_DAIFMT_LEFT_J: | |
434 | iface |= 0x0008; | |
435 | break; | |
436 | case SND_SOC_DAIFMT_DSP_A: | |
437 | iface |= 0x00018; | |
438 | break; | |
439 | default: | |
440 | return -EINVAL; | |
441 | } | |
442 | ||
443 | /* clock inversion */ | |
444 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
445 | case SND_SOC_DAIFMT_NB_NF: | |
446 | break; | |
447 | case SND_SOC_DAIFMT_IB_IF: | |
448 | iface |= 0x0180; | |
449 | break; | |
450 | case SND_SOC_DAIFMT_IB_NF: | |
451 | iface |= 0x0100; | |
452 | break; | |
453 | case SND_SOC_DAIFMT_NB_IF: | |
454 | iface |= 0x0080; | |
455 | break; | |
456 | default: | |
457 | return -EINVAL; | |
458 | } | |
459 | ||
460 | wm8510_write(codec, WM8510_IFACE, iface); | |
461 | wm8510_write(codec, WM8510_CLOCK, clk); | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
466 | struct snd_pcm_hw_params *params, |
467 | struct snd_soc_dai *dai) | |
5d421516 MB |
468 | { |
469 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
470 | struct snd_soc_device *socdev = rtd->socdev; | |
471 | struct snd_soc_codec *codec = socdev->codec; | |
472 | u16 iface = wm8510_read_reg_cache(codec, WM8510_IFACE) & 0x19f; | |
473 | u16 adn = wm8510_read_reg_cache(codec, WM8510_ADD) & 0x1f1; | |
474 | ||
475 | /* bit size */ | |
476 | switch (params_format(params)) { | |
477 | case SNDRV_PCM_FORMAT_S16_LE: | |
478 | break; | |
479 | case SNDRV_PCM_FORMAT_S20_3LE: | |
480 | iface |= 0x0020; | |
481 | break; | |
482 | case SNDRV_PCM_FORMAT_S24_LE: | |
483 | iface |= 0x0040; | |
484 | break; | |
485 | case SNDRV_PCM_FORMAT_S32_LE: | |
486 | iface |= 0x0060; | |
487 | break; | |
488 | } | |
489 | ||
490 | /* filter coefficient */ | |
491 | switch (params_rate(params)) { | |
492 | case SNDRV_PCM_RATE_8000: | |
493 | adn |= 0x5 << 1; | |
494 | break; | |
495 | case SNDRV_PCM_RATE_11025: | |
496 | adn |= 0x4 << 1; | |
497 | break; | |
498 | case SNDRV_PCM_RATE_16000: | |
499 | adn |= 0x3 << 1; | |
500 | break; | |
501 | case SNDRV_PCM_RATE_22050: | |
502 | adn |= 0x2 << 1; | |
503 | break; | |
504 | case SNDRV_PCM_RATE_32000: | |
505 | adn |= 0x1 << 1; | |
506 | break; | |
507 | case SNDRV_PCM_RATE_44100: | |
508 | case SNDRV_PCM_RATE_48000: | |
509 | break; | |
510 | } | |
511 | ||
512 | wm8510_write(codec, WM8510_IFACE, iface); | |
513 | wm8510_write(codec, WM8510_ADD, adn); | |
514 | return 0; | |
515 | } | |
516 | ||
e550e17f | 517 | static int wm8510_mute(struct snd_soc_dai *dai, int mute) |
5d421516 MB |
518 | { |
519 | struct snd_soc_codec *codec = dai->codec; | |
520 | u16 mute_reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0xffbf; | |
521 | ||
522 | if (mute) | |
523 | wm8510_write(codec, WM8510_DAC, mute_reg | 0x40); | |
524 | else | |
525 | wm8510_write(codec, WM8510_DAC, mute_reg); | |
526 | return 0; | |
527 | } | |
528 | ||
529 | /* liam need to make this lower power with dapm */ | |
530 | static int wm8510_set_bias_level(struct snd_soc_codec *codec, | |
531 | enum snd_soc_bias_level level) | |
532 | { | |
09af98b0 | 533 | u16 power1 = wm8510_read_reg_cache(codec, WM8510_POWER1) & ~0x3; |
5d421516 MB |
534 | |
535 | switch (level) { | |
536 | case SND_SOC_BIAS_ON: | |
5d421516 | 537 | case SND_SOC_BIAS_PREPARE: |
09af98b0 MB |
538 | power1 |= 0x1; /* VMID 50k */ |
539 | wm8510_write(codec, WM8510_POWER1, power1); | |
540 | break; | |
541 | ||
5d421516 | 542 | case SND_SOC_BIAS_STANDBY: |
09af98b0 MB |
543 | power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN; |
544 | ||
545 | if (codec->bias_level == SND_SOC_BIAS_OFF) { | |
546 | /* Initial cap charge at VMID 5k */ | |
547 | wm8510_write(codec, WM8510_POWER1, power1 | 0x3); | |
548 | mdelay(100); | |
549 | } | |
550 | ||
551 | power1 |= 0x2; /* VMID 500k */ | |
552 | wm8510_write(codec, WM8510_POWER1, power1); | |
5d421516 | 553 | break; |
09af98b0 | 554 | |
5d421516 | 555 | case SND_SOC_BIAS_OFF: |
09af98b0 MB |
556 | wm8510_write(codec, WM8510_POWER1, 0); |
557 | wm8510_write(codec, WM8510_POWER2, 0); | |
558 | wm8510_write(codec, WM8510_POWER3, 0); | |
5d421516 MB |
559 | break; |
560 | } | |
09af98b0 | 561 | |
5d421516 MB |
562 | codec->bias_level = level; |
563 | return 0; | |
564 | } | |
565 | ||
566 | #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
567 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
568 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
569 | ||
570 | #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
571 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
572 | ||
e550e17f | 573 | struct snd_soc_dai wm8510_dai = { |
5d421516 MB |
574 | .name = "WM8510 HiFi", |
575 | .playback = { | |
576 | .stream_name = "Playback", | |
577 | .channels_min = 2, | |
578 | .channels_max = 2, | |
579 | .rates = WM8510_RATES, | |
580 | .formats = WM8510_FORMATS,}, | |
581 | .capture = { | |
582 | .stream_name = "Capture", | |
583 | .channels_min = 2, | |
584 | .channels_max = 2, | |
585 | .rates = WM8510_RATES, | |
586 | .formats = WM8510_FORMATS,}, | |
587 | .ops = { | |
588 | .hw_params = wm8510_pcm_hw_params, | |
5d421516 MB |
589 | .digital_mute = wm8510_mute, |
590 | .set_fmt = wm8510_set_dai_fmt, | |
591 | .set_clkdiv = wm8510_set_dai_clkdiv, | |
592 | .set_pll = wm8510_set_dai_pll, | |
593 | }, | |
594 | }; | |
595 | EXPORT_SYMBOL_GPL(wm8510_dai); | |
596 | ||
597 | static int wm8510_suspend(struct platform_device *pdev, pm_message_t state) | |
598 | { | |
599 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
600 | struct snd_soc_codec *codec = socdev->codec; | |
601 | ||
602 | wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
603 | return 0; | |
604 | } | |
605 | ||
606 | static int wm8510_resume(struct platform_device *pdev) | |
607 | { | |
608 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
609 | struct snd_soc_codec *codec = socdev->codec; | |
610 | int i; | |
611 | u8 data[2]; | |
612 | u16 *cache = codec->reg_cache; | |
613 | ||
614 | /* Sync reg_cache with the hardware */ | |
615 | for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) { | |
616 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
617 | data[1] = cache[i] & 0x00ff; | |
618 | codec->hw_write(codec->control_data, data, 2); | |
619 | } | |
620 | wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
621 | wm8510_set_bias_level(codec, codec->suspend_bias_level); | |
622 | return 0; | |
623 | } | |
624 | ||
625 | /* | |
626 | * initialise the WM8510 driver | |
627 | * register the mixer and dsp interfaces with the kernel | |
628 | */ | |
629 | static int wm8510_init(struct snd_soc_device *socdev) | |
630 | { | |
631 | struct snd_soc_codec *codec = socdev->codec; | |
632 | int ret = 0; | |
633 | ||
634 | codec->name = "WM8510"; | |
635 | codec->owner = THIS_MODULE; | |
636 | codec->read = wm8510_read_reg_cache; | |
637 | codec->write = wm8510_write; | |
638 | codec->set_bias_level = wm8510_set_bias_level; | |
639 | codec->dai = &wm8510_dai; | |
640 | codec->num_dai = 1; | |
641 | codec->reg_cache_size = ARRAY_SIZE(wm8510_reg); | |
642 | codec->reg_cache = kmemdup(wm8510_reg, sizeof(wm8510_reg), GFP_KERNEL); | |
643 | ||
644 | if (codec->reg_cache == NULL) | |
645 | return -ENOMEM; | |
646 | ||
647 | wm8510_reset(codec); | |
648 | ||
649 | /* register pcms */ | |
650 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
651 | if (ret < 0) { | |
652 | printk(KERN_ERR "wm8510: failed to create pcms\n"); | |
653 | goto pcm_err; | |
654 | } | |
655 | ||
656 | /* power on device */ | |
09af98b0 | 657 | codec->bias_level = SND_SOC_BIAS_OFF; |
5d421516 MB |
658 | wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
659 | wm8510_add_controls(codec); | |
660 | wm8510_add_widgets(codec); | |
968a6025 | 661 | ret = snd_soc_init_card(socdev); |
5d421516 MB |
662 | if (ret < 0) { |
663 | printk(KERN_ERR "wm8510: failed to register card\n"); | |
664 | goto card_err; | |
665 | } | |
666 | return ret; | |
667 | ||
668 | card_err: | |
669 | snd_soc_free_pcms(socdev); | |
670 | snd_soc_dapm_free(socdev); | |
671 | pcm_err: | |
672 | kfree(codec->reg_cache); | |
673 | return ret; | |
674 | } | |
675 | ||
676 | static struct snd_soc_device *wm8510_socdev; | |
677 | ||
678 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
679 | ||
680 | /* | |
681 | * WM8510 2 wire address is 0x1a | |
682 | */ | |
5d421516 | 683 | |
41759c2e JD |
684 | static int wm8510_i2c_probe(struct i2c_client *i2c, |
685 | const struct i2c_device_id *id) | |
5d421516 MB |
686 | { |
687 | struct snd_soc_device *socdev = wm8510_socdev; | |
5d421516 | 688 | struct snd_soc_codec *codec = socdev->codec; |
5d421516 MB |
689 | int ret; |
690 | ||
5d421516 MB |
691 | i2c_set_clientdata(i2c, codec); |
692 | codec->control_data = i2c; | |
693 | ||
5d421516 | 694 | ret = wm8510_init(socdev); |
41759c2e | 695 | if (ret < 0) |
a5c95e90 | 696 | pr_err("failed to initialise WM8510\n"); |
5d421516 | 697 | |
5d421516 MB |
698 | return ret; |
699 | } | |
700 | ||
41759c2e | 701 | static int wm8510_i2c_remove(struct i2c_client *client) |
5d421516 MB |
702 | { |
703 | struct snd_soc_codec *codec = i2c_get_clientdata(client); | |
5d421516 | 704 | kfree(codec->reg_cache); |
5d421516 MB |
705 | return 0; |
706 | } | |
707 | ||
41759c2e JD |
708 | static const struct i2c_device_id wm8510_i2c_id[] = { |
709 | { "wm8510", 0 }, | |
710 | { } | |
711 | }; | |
712 | MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id); | |
5d421516 | 713 | |
5d421516 MB |
714 | static struct i2c_driver wm8510_i2c_driver = { |
715 | .driver = { | |
716 | .name = "WM8510 I2C Codec", | |
717 | .owner = THIS_MODULE, | |
718 | }, | |
41759c2e JD |
719 | .probe = wm8510_i2c_probe, |
720 | .remove = wm8510_i2c_remove, | |
721 | .id_table = wm8510_i2c_id, | |
5d421516 MB |
722 | }; |
723 | ||
41759c2e JD |
724 | static int wm8510_add_i2c_device(struct platform_device *pdev, |
725 | const struct wm8510_setup_data *setup) | |
726 | { | |
727 | struct i2c_board_info info; | |
728 | struct i2c_adapter *adapter; | |
729 | struct i2c_client *client; | |
730 | int ret; | |
731 | ||
732 | ret = i2c_add_driver(&wm8510_i2c_driver); | |
733 | if (ret != 0) { | |
734 | dev_err(&pdev->dev, "can't add i2c driver\n"); | |
735 | return ret; | |
736 | } | |
737 | ||
738 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
739 | info.addr = setup->i2c_address; | |
740 | strlcpy(info.type, "wm8510", I2C_NAME_SIZE); | |
741 | ||
742 | adapter = i2c_get_adapter(setup->i2c_bus); | |
743 | if (!adapter) { | |
744 | dev_err(&pdev->dev, "can't get i2c adapter %d\n", | |
745 | setup->i2c_bus); | |
746 | goto err_driver; | |
747 | } | |
748 | ||
749 | client = i2c_new_device(adapter, &info); | |
750 | i2c_put_adapter(adapter); | |
751 | if (!client) { | |
752 | dev_err(&pdev->dev, "can't add i2c device at 0x%x\n", | |
753 | (unsigned int)info.addr); | |
754 | goto err_driver; | |
755 | } | |
756 | ||
757 | return 0; | |
758 | ||
759 | err_driver: | |
760 | i2c_del_driver(&wm8510_i2c_driver); | |
761 | return -ENODEV; | |
762 | } | |
5d421516 MB |
763 | #endif |
764 | ||
5e357952 MB |
765 | #if defined(CONFIG_SPI_MASTER) |
766 | static int __devinit wm8510_spi_probe(struct spi_device *spi) | |
767 | { | |
768 | struct snd_soc_device *socdev = wm8510_socdev; | |
769 | struct snd_soc_codec *codec = socdev->codec; | |
770 | int ret; | |
771 | ||
772 | codec->control_data = spi; | |
773 | ||
774 | ret = wm8510_init(socdev); | |
775 | if (ret < 0) | |
776 | dev_err(&spi->dev, "failed to initialise WM8510\n"); | |
777 | ||
778 | return ret; | |
779 | } | |
780 | ||
781 | static int __devexit wm8510_spi_remove(struct spi_device *spi) | |
782 | { | |
783 | return 0; | |
784 | } | |
785 | ||
786 | static struct spi_driver wm8510_spi_driver = { | |
787 | .driver = { | |
788 | .name = "wm8510", | |
789 | .bus = &spi_bus_type, | |
790 | .owner = THIS_MODULE, | |
791 | }, | |
792 | .probe = wm8510_spi_probe, | |
793 | .remove = __devexit_p(wm8510_spi_remove), | |
794 | }; | |
795 | ||
796 | static int wm8510_spi_write(struct spi_device *spi, const char *data, int len) | |
797 | { | |
798 | struct spi_transfer t; | |
799 | struct spi_message m; | |
800 | u8 msg[2]; | |
801 | ||
802 | if (len <= 0) | |
803 | return 0; | |
804 | ||
805 | msg[0] = data[0]; | |
806 | msg[1] = data[1]; | |
807 | ||
808 | spi_message_init(&m); | |
809 | memset(&t, 0, (sizeof t)); | |
810 | ||
811 | t.tx_buf = &msg[0]; | |
812 | t.len = len; | |
813 | ||
814 | spi_message_add_tail(&t, &m); | |
815 | spi_sync(spi, &m); | |
816 | ||
817 | return len; | |
818 | } | |
819 | #endif /* CONFIG_SPI_MASTER */ | |
820 | ||
5d421516 MB |
821 | static int wm8510_probe(struct platform_device *pdev) |
822 | { | |
823 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
824 | struct wm8510_setup_data *setup; | |
825 | struct snd_soc_codec *codec; | |
826 | int ret = 0; | |
827 | ||
a5c95e90 | 828 | pr_info("WM8510 Audio Codec %s", WM8510_VERSION); |
5d421516 MB |
829 | |
830 | setup = socdev->codec_data; | |
831 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
832 | if (codec == NULL) | |
833 | return -ENOMEM; | |
834 | ||
835 | socdev->codec = codec; | |
836 | mutex_init(&codec->mutex); | |
837 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
838 | INIT_LIST_HEAD(&codec->dapm_paths); | |
839 | ||
840 | wm8510_socdev = socdev; | |
841 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
842 | if (setup->i2c_address) { | |
5d421516 | 843 | codec->hw_write = (hw_write_t)i2c_master_send; |
41759c2e | 844 | ret = wm8510_add_i2c_device(pdev, setup); |
5d421516 | 845 | } |
5e357952 MB |
846 | #endif |
847 | #if defined(CONFIG_SPI_MASTER) | |
848 | if (setup->spi) { | |
849 | codec->hw_write = (hw_write_t)wm8510_spi_write; | |
850 | ret = spi_register_driver(&wm8510_spi_driver); | |
851 | if (ret != 0) | |
852 | printk(KERN_ERR "can't add spi driver"); | |
853 | } | |
5d421516 | 854 | #endif |
3051e41a JD |
855 | |
856 | if (ret != 0) | |
857 | kfree(codec); | |
5d421516 MB |
858 | return ret; |
859 | } | |
860 | ||
861 | /* power down chip */ | |
862 | static int wm8510_remove(struct platform_device *pdev) | |
863 | { | |
864 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
865 | struct snd_soc_codec *codec = socdev->codec; | |
866 | ||
867 | if (codec->control_data) | |
868 | wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
869 | ||
870 | snd_soc_free_pcms(socdev); | |
871 | snd_soc_dapm_free(socdev); | |
872 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
41759c2e | 873 | i2c_unregister_device(codec->control_data); |
5d421516 | 874 | i2c_del_driver(&wm8510_i2c_driver); |
5e357952 MB |
875 | #endif |
876 | #if defined(CONFIG_SPI_MASTER) | |
877 | spi_unregister_driver(&wm8510_spi_driver); | |
5d421516 MB |
878 | #endif |
879 | kfree(codec); | |
880 | ||
881 | return 0; | |
882 | } | |
883 | ||
884 | struct snd_soc_codec_device soc_codec_dev_wm8510 = { | |
885 | .probe = wm8510_probe, | |
886 | .remove = wm8510_remove, | |
887 | .suspend = wm8510_suspend, | |
888 | .resume = wm8510_resume, | |
889 | }; | |
890 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8510); | |
891 | ||
c9b3a40f | 892 | static int __init wm8510_modinit(void) |
64089b84 MB |
893 | { |
894 | return snd_soc_register_dai(&wm8510_dai); | |
895 | } | |
896 | module_init(wm8510_modinit); | |
897 | ||
898 | static void __exit wm8510_exit(void) | |
899 | { | |
900 | snd_soc_unregister_dai(&wm8510_dai); | |
901 | } | |
902 | module_exit(wm8510_exit); | |
903 | ||
5d421516 MB |
904 | MODULE_DESCRIPTION("ASoC WM8510 driver"); |
905 | MODULE_AUTHOR("Liam Girdwood"); | |
906 | MODULE_LICENSE("GPL"); |