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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 | ||
5d421516 MB |
31 | #define WM8510_VERSION "0.6" |
32 | ||
5d421516 MB |
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, |
5d421516 MB |
56 | }; |
57 | ||
09af98b0 MB |
58 | #define WM8510_POWER1_BIASEN 0x08 |
59 | #define WM8510_POWER1_BUFIOEN 0x10 | |
60 | ||
17a52fd6 | 61 | #define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0) |
5d421516 MB |
62 | |
63 | static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" }; | |
64 | static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; | |
65 | static const char *wm8510_alc[] = { "ALC", "Limiter" }; | |
66 | ||
67 | static const struct soc_enum wm8510_enum[] = { | |
68 | SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */ | |
69 | SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */ | |
70 | SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp), | |
71 | SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc), | |
72 | }; | |
73 | ||
74 | static const struct snd_kcontrol_new wm8510_snd_controls[] = { | |
75 | ||
76 | SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0), | |
77 | ||
78 | SOC_ENUM("DAC Companding", wm8510_enum[1]), | |
79 | SOC_ENUM("ADC Companding", wm8510_enum[0]), | |
80 | ||
81 | SOC_ENUM("Playback De-emphasis", wm8510_enum[2]), | |
82 | SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0), | |
83 | ||
84 | SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0), | |
85 | ||
86 | SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0), | |
87 | SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0), | |
88 | SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0), | |
89 | ||
90 | SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0), | |
91 | ||
92 | SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0), | |
93 | SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0), | |
94 | SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0), | |
95 | ||
96 | SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0), | |
97 | SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0), | |
98 | ||
99 | SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0), | |
100 | SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0), | |
101 | SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0), | |
102 | ||
103 | SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0), | |
104 | SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0), | |
105 | SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0), | |
106 | ||
107 | SOC_ENUM("ALC Capture Mode", wm8510_enum[3]), | |
108 | SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0), | |
109 | SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0), | |
110 | ||
111 | SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0), | |
112 | SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0), | |
113 | ||
114 | SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0), | |
115 | SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0), | |
116 | ||
117 | SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0), | |
118 | SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1), | |
119 | SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0), | |
120 | SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0), | |
121 | ||
122 | SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0), | |
123 | SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1), | |
124 | }; | |
125 | ||
5d421516 MB |
126 | /* Speaker Output Mixer */ |
127 | static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = { | |
128 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0), | |
129 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0), | |
130 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0), | |
131 | }; | |
132 | ||
133 | /* Mono Output Mixer */ | |
134 | static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = { | |
135 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0), | |
136 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0), | |
137 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0), | |
138 | }; | |
139 | ||
140 | static const struct snd_kcontrol_new wm8510_boost_controls[] = { | |
8ae23ec3 | 141 | SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1), |
5d421516 MB |
142 | SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0), |
143 | SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0), | |
144 | }; | |
145 | ||
146 | static const struct snd_kcontrol_new wm8510_micpga_controls[] = { | |
147 | SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0), | |
148 | SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0), | |
149 | SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0), | |
150 | }; | |
151 | ||
152 | static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = { | |
153 | SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0, | |
154 | &wm8510_speaker_mixer_controls[0], | |
155 | ARRAY_SIZE(wm8510_speaker_mixer_controls)), | |
156 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0, | |
157 | &wm8510_mono_mixer_controls[0], | |
158 | ARRAY_SIZE(wm8510_mono_mixer_controls)), | |
159 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0), | |
160 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0), | |
161 | SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0), | |
162 | SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0), | |
163 | SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0), | |
164 | SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0), | |
165 | ||
2b5f34c5 MB |
166 | SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0, |
167 | &wm8510_micpga_controls[0], | |
168 | ARRAY_SIZE(wm8510_micpga_controls)), | |
5d421516 MB |
169 | SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0, |
170 | &wm8510_boost_controls[0], | |
171 | ARRAY_SIZE(wm8510_boost_controls)), | |
172 | ||
173 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0), | |
174 | ||
175 | SND_SOC_DAPM_INPUT("MICN"), | |
176 | SND_SOC_DAPM_INPUT("MICP"), | |
177 | SND_SOC_DAPM_INPUT("AUX"), | |
178 | SND_SOC_DAPM_OUTPUT("MONOOUT"), | |
179 | SND_SOC_DAPM_OUTPUT("SPKOUTP"), | |
180 | SND_SOC_DAPM_OUTPUT("SPKOUTN"), | |
181 | }; | |
182 | ||
183 | static const struct snd_soc_dapm_route audio_map[] = { | |
184 | /* Mono output mixer */ | |
185 | {"Mono Mixer", "PCM Playback Switch", "DAC"}, | |
186 | {"Mono Mixer", "Aux Playback Switch", "Aux Input"}, | |
187 | {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
188 | ||
189 | /* Speaker output mixer */ | |
190 | {"Speaker Mixer", "PCM Playback Switch", "DAC"}, | |
191 | {"Speaker Mixer", "Aux Playback Switch", "Aux Input"}, | |
192 | {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
193 | ||
194 | /* Outputs */ | |
195 | {"Mono Out", NULL, "Mono Mixer"}, | |
196 | {"MONOOUT", NULL, "Mono Out"}, | |
197 | {"SpkN Out", NULL, "Speaker Mixer"}, | |
198 | {"SpkP Out", NULL, "Speaker Mixer"}, | |
199 | {"SPKOUTN", NULL, "SpkN Out"}, | |
200 | {"SPKOUTP", NULL, "SpkP Out"}, | |
201 | ||
202 | /* Microphone PGA */ | |
203 | {"Mic PGA", "MICN Switch", "MICN"}, | |
204 | {"Mic PGA", "MICP Switch", "MICP"}, | |
205 | { "Mic PGA", "AUX Switch", "Aux Input" }, | |
206 | ||
207 | /* Boost Mixer */ | |
208 | {"Boost Mixer", "Mic PGA Switch", "Mic PGA"}, | |
209 | {"Boost Mixer", "Mic Volume", "MICP"}, | |
210 | {"Boost Mixer", "Aux Volume", "Aux Input"}, | |
211 | ||
212 | {"ADC", NULL, "Boost Mixer"}, | |
213 | }; | |
214 | ||
215 | static int wm8510_add_widgets(struct snd_soc_codec *codec) | |
216 | { | |
217 | snd_soc_dapm_new_controls(codec, wm8510_dapm_widgets, | |
218 | ARRAY_SIZE(wm8510_dapm_widgets)); | |
219 | ||
220 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
221 | ||
222 | snd_soc_dapm_new_widgets(codec); | |
223 | return 0; | |
224 | } | |
225 | ||
226 | struct pll_ { | |
227 | unsigned int pre_div:4; /* prescale - 1 */ | |
228 | unsigned int n:4; | |
229 | unsigned int k; | |
230 | }; | |
231 | ||
232 | static struct pll_ pll_div; | |
233 | ||
234 | /* The size in bits of the pll divide multiplied by 10 | |
235 | * to allow rounding later */ | |
236 | #define FIXED_PLL_SIZE ((1 << 24) * 10) | |
237 | ||
238 | static void pll_factors(unsigned int target, unsigned int source) | |
239 | { | |
240 | unsigned long long Kpart; | |
241 | unsigned int K, Ndiv, Nmod; | |
242 | ||
243 | Ndiv = target / source; | |
244 | if (Ndiv < 6) { | |
245 | source >>= 1; | |
246 | pll_div.pre_div = 1; | |
247 | Ndiv = target / source; | |
248 | } else | |
249 | pll_div.pre_div = 0; | |
250 | ||
251 | if ((Ndiv < 6) || (Ndiv > 12)) | |
252 | printk(KERN_WARNING | |
449bd54d | 253 | "WM8510 N value %u outwith recommended range!d\n", |
5d421516 MB |
254 | Ndiv); |
255 | ||
256 | pll_div.n = Ndiv; | |
257 | Nmod = target % source; | |
258 | Kpart = FIXED_PLL_SIZE * (long long)Nmod; | |
259 | ||
260 | do_div(Kpart, source); | |
261 | ||
262 | K = Kpart & 0xFFFFFFFF; | |
263 | ||
264 | /* Check if we need to round */ | |
265 | if ((K % 10) >= 5) | |
266 | K += 5; | |
267 | ||
268 | /* Move down to proper range now rounding is done */ | |
269 | K /= 10; | |
270 | ||
271 | pll_div.k = K; | |
272 | } | |
273 | ||
e550e17f | 274 | static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, |
5d421516 MB |
275 | int pll_id, unsigned int freq_in, unsigned int freq_out) |
276 | { | |
277 | struct snd_soc_codec *codec = codec_dai->codec; | |
278 | u16 reg; | |
279 | ||
280 | if (freq_in == 0 || freq_out == 0) { | |
281 | /* Clock CODEC directly from MCLK */ | |
17a52fd6 MB |
282 | reg = snd_soc_read(codec, WM8510_CLOCK); |
283 | snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff); | |
5d421516 MB |
284 | |
285 | /* Turn off PLL */ | |
17a52fd6 MB |
286 | reg = snd_soc_read(codec, WM8510_POWER1); |
287 | snd_soc_write(codec, WM8510_POWER1, reg & 0x1df); | |
5d421516 MB |
288 | return 0; |
289 | } | |
290 | ||
86027ae7 | 291 | pll_factors(freq_out*4, freq_in); |
5d421516 | 292 | |
17a52fd6 MB |
293 | snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n); |
294 | snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18); | |
295 | snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff); | |
296 | snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff); | |
297 | reg = snd_soc_read(codec, WM8510_POWER1); | |
298 | snd_soc_write(codec, WM8510_POWER1, reg | 0x020); | |
5d421516 MB |
299 | |
300 | /* Run CODEC from PLL instead of MCLK */ | |
17a52fd6 MB |
301 | reg = snd_soc_read(codec, WM8510_CLOCK); |
302 | snd_soc_write(codec, WM8510_CLOCK, reg | 0x100); | |
5d421516 MB |
303 | |
304 | return 0; | |
305 | } | |
306 | ||
307 | /* | |
308 | * Configure WM8510 clock dividers. | |
309 | */ | |
e550e17f | 310 | static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai, |
5d421516 MB |
311 | int div_id, int div) |
312 | { | |
313 | struct snd_soc_codec *codec = codec_dai->codec; | |
314 | u16 reg; | |
315 | ||
316 | switch (div_id) { | |
317 | case WM8510_OPCLKDIV: | |
17a52fd6 MB |
318 | reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf; |
319 | snd_soc_write(codec, WM8510_GPIO, reg | div); | |
5d421516 MB |
320 | break; |
321 | case WM8510_MCLKDIV: | |
17a52fd6 MB |
322 | reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f; |
323 | snd_soc_write(codec, WM8510_CLOCK, reg | div); | |
5d421516 MB |
324 | break; |
325 | case WM8510_ADCCLK: | |
17a52fd6 MB |
326 | reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7; |
327 | snd_soc_write(codec, WM8510_ADC, reg | div); | |
5d421516 MB |
328 | break; |
329 | case WM8510_DACCLK: | |
17a52fd6 MB |
330 | reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7; |
331 | snd_soc_write(codec, WM8510_DAC, reg | div); | |
5d421516 MB |
332 | break; |
333 | case WM8510_BCLKDIV: | |
17a52fd6 MB |
334 | reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3; |
335 | snd_soc_write(codec, WM8510_CLOCK, reg | div); | |
5d421516 MB |
336 | break; |
337 | default: | |
338 | return -EINVAL; | |
339 | } | |
340 | ||
341 | return 0; | |
342 | } | |
343 | ||
e550e17f | 344 | static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai, |
5d421516 MB |
345 | unsigned int fmt) |
346 | { | |
347 | struct snd_soc_codec *codec = codec_dai->codec; | |
348 | u16 iface = 0; | |
17a52fd6 | 349 | u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe; |
5d421516 MB |
350 | |
351 | /* set master/slave audio interface */ | |
352 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
353 | case SND_SOC_DAIFMT_CBM_CFM: | |
354 | clk |= 0x0001; | |
355 | break; | |
356 | case SND_SOC_DAIFMT_CBS_CFS: | |
357 | break; | |
358 | default: | |
359 | return -EINVAL; | |
360 | } | |
361 | ||
362 | /* interface format */ | |
363 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
364 | case SND_SOC_DAIFMT_I2S: | |
365 | iface |= 0x0010; | |
366 | break; | |
367 | case SND_SOC_DAIFMT_RIGHT_J: | |
368 | break; | |
369 | case SND_SOC_DAIFMT_LEFT_J: | |
370 | iface |= 0x0008; | |
371 | break; | |
372 | case SND_SOC_DAIFMT_DSP_A: | |
373 | iface |= 0x00018; | |
374 | break; | |
375 | default: | |
376 | return -EINVAL; | |
377 | } | |
378 | ||
379 | /* clock inversion */ | |
380 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
381 | case SND_SOC_DAIFMT_NB_NF: | |
382 | break; | |
383 | case SND_SOC_DAIFMT_IB_IF: | |
384 | iface |= 0x0180; | |
385 | break; | |
386 | case SND_SOC_DAIFMT_IB_NF: | |
387 | iface |= 0x0100; | |
388 | break; | |
389 | case SND_SOC_DAIFMT_NB_IF: | |
390 | iface |= 0x0080; | |
391 | break; | |
392 | default: | |
393 | return -EINVAL; | |
394 | } | |
395 | ||
17a52fd6 MB |
396 | snd_soc_write(codec, WM8510_IFACE, iface); |
397 | snd_soc_write(codec, WM8510_CLOCK, clk); | |
5d421516 MB |
398 | return 0; |
399 | } | |
400 | ||
401 | static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
402 | struct snd_pcm_hw_params *params, |
403 | struct snd_soc_dai *dai) | |
5d421516 MB |
404 | { |
405 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
406 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 407 | struct snd_soc_codec *codec = socdev->card->codec; |
17a52fd6 MB |
408 | u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f; |
409 | u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1; | |
5d421516 MB |
410 | |
411 | /* bit size */ | |
412 | switch (params_format(params)) { | |
413 | case SNDRV_PCM_FORMAT_S16_LE: | |
414 | break; | |
415 | case SNDRV_PCM_FORMAT_S20_3LE: | |
416 | iface |= 0x0020; | |
417 | break; | |
418 | case SNDRV_PCM_FORMAT_S24_LE: | |
419 | iface |= 0x0040; | |
420 | break; | |
421 | case SNDRV_PCM_FORMAT_S32_LE: | |
422 | iface |= 0x0060; | |
423 | break; | |
424 | } | |
425 | ||
426 | /* filter coefficient */ | |
427 | switch (params_rate(params)) { | |
428 | case SNDRV_PCM_RATE_8000: | |
429 | adn |= 0x5 << 1; | |
430 | break; | |
431 | case SNDRV_PCM_RATE_11025: | |
432 | adn |= 0x4 << 1; | |
433 | break; | |
434 | case SNDRV_PCM_RATE_16000: | |
435 | adn |= 0x3 << 1; | |
436 | break; | |
437 | case SNDRV_PCM_RATE_22050: | |
438 | adn |= 0x2 << 1; | |
439 | break; | |
440 | case SNDRV_PCM_RATE_32000: | |
441 | adn |= 0x1 << 1; | |
442 | break; | |
443 | case SNDRV_PCM_RATE_44100: | |
444 | case SNDRV_PCM_RATE_48000: | |
445 | break; | |
446 | } | |
447 | ||
17a52fd6 MB |
448 | snd_soc_write(codec, WM8510_IFACE, iface); |
449 | snd_soc_write(codec, WM8510_ADD, adn); | |
5d421516 MB |
450 | return 0; |
451 | } | |
452 | ||
e550e17f | 453 | static int wm8510_mute(struct snd_soc_dai *dai, int mute) |
5d421516 MB |
454 | { |
455 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 456 | u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf; |
5d421516 MB |
457 | |
458 | if (mute) | |
17a52fd6 | 459 | snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40); |
5d421516 | 460 | else |
17a52fd6 | 461 | snd_soc_write(codec, WM8510_DAC, mute_reg); |
5d421516 MB |
462 | return 0; |
463 | } | |
464 | ||
465 | /* liam need to make this lower power with dapm */ | |
466 | static int wm8510_set_bias_level(struct snd_soc_codec *codec, | |
467 | enum snd_soc_bias_level level) | |
468 | { | |
17a52fd6 | 469 | u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3; |
5d421516 MB |
470 | |
471 | switch (level) { | |
472 | case SND_SOC_BIAS_ON: | |
5d421516 | 473 | case SND_SOC_BIAS_PREPARE: |
09af98b0 | 474 | power1 |= 0x1; /* VMID 50k */ |
17a52fd6 | 475 | snd_soc_write(codec, WM8510_POWER1, power1); |
09af98b0 MB |
476 | break; |
477 | ||
5d421516 | 478 | case SND_SOC_BIAS_STANDBY: |
09af98b0 MB |
479 | power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN; |
480 | ||
481 | if (codec->bias_level == SND_SOC_BIAS_OFF) { | |
482 | /* Initial cap charge at VMID 5k */ | |
17a52fd6 | 483 | snd_soc_write(codec, WM8510_POWER1, power1 | 0x3); |
09af98b0 MB |
484 | mdelay(100); |
485 | } | |
486 | ||
487 | power1 |= 0x2; /* VMID 500k */ | |
17a52fd6 | 488 | snd_soc_write(codec, WM8510_POWER1, power1); |
5d421516 | 489 | break; |
09af98b0 | 490 | |
5d421516 | 491 | case SND_SOC_BIAS_OFF: |
17a52fd6 MB |
492 | snd_soc_write(codec, WM8510_POWER1, 0); |
493 | snd_soc_write(codec, WM8510_POWER2, 0); | |
494 | snd_soc_write(codec, WM8510_POWER3, 0); | |
5d421516 MB |
495 | break; |
496 | } | |
09af98b0 | 497 | |
5d421516 MB |
498 | codec->bias_level = level; |
499 | return 0; | |
500 | } | |
501 | ||
502 | #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
503 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
504 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
505 | ||
506 | #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
507 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
508 | ||
6335d055 EM |
509 | static struct snd_soc_dai_ops wm8510_dai_ops = { |
510 | .hw_params = wm8510_pcm_hw_params, | |
511 | .digital_mute = wm8510_mute, | |
512 | .set_fmt = wm8510_set_dai_fmt, | |
513 | .set_clkdiv = wm8510_set_dai_clkdiv, | |
514 | .set_pll = wm8510_set_dai_pll, | |
515 | }; | |
516 | ||
e550e17f | 517 | struct snd_soc_dai wm8510_dai = { |
5d421516 MB |
518 | .name = "WM8510 HiFi", |
519 | .playback = { | |
520 | .stream_name = "Playback", | |
521 | .channels_min = 2, | |
522 | .channels_max = 2, | |
523 | .rates = WM8510_RATES, | |
524 | .formats = WM8510_FORMATS,}, | |
525 | .capture = { | |
526 | .stream_name = "Capture", | |
527 | .channels_min = 2, | |
528 | .channels_max = 2, | |
529 | .rates = WM8510_RATES, | |
530 | .formats = WM8510_FORMATS,}, | |
6335d055 | 531 | .ops = &wm8510_dai_ops, |
5d421516 MB |
532 | }; |
533 | EXPORT_SYMBOL_GPL(wm8510_dai); | |
534 | ||
535 | static int wm8510_suspend(struct platform_device *pdev, pm_message_t state) | |
536 | { | |
537 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 538 | struct snd_soc_codec *codec = socdev->card->codec; |
5d421516 MB |
539 | |
540 | wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
541 | return 0; | |
542 | } | |
543 | ||
544 | static int wm8510_resume(struct platform_device *pdev) | |
545 | { | |
546 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 547 | struct snd_soc_codec *codec = socdev->card->codec; |
5d421516 MB |
548 | int i; |
549 | u8 data[2]; | |
550 | u16 *cache = codec->reg_cache; | |
551 | ||
552 | /* Sync reg_cache with the hardware */ | |
553 | for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) { | |
554 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
555 | data[1] = cache[i] & 0x00ff; | |
556 | codec->hw_write(codec->control_data, data, 2); | |
557 | } | |
558 | wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
559 | wm8510_set_bias_level(codec, codec->suspend_bias_level); | |
560 | return 0; | |
561 | } | |
562 | ||
563 | /* | |
564 | * initialise the WM8510 driver | |
565 | * register the mixer and dsp interfaces with the kernel | |
566 | */ | |
567 | static int wm8510_init(struct snd_soc_device *socdev) | |
568 | { | |
6627a653 | 569 | struct snd_soc_codec *codec = socdev->card->codec; |
5d421516 MB |
570 | int ret = 0; |
571 | ||
572 | codec->name = "WM8510"; | |
573 | codec->owner = THIS_MODULE; | |
5d421516 MB |
574 | codec->set_bias_level = wm8510_set_bias_level; |
575 | codec->dai = &wm8510_dai; | |
576 | codec->num_dai = 1; | |
577 | codec->reg_cache_size = ARRAY_SIZE(wm8510_reg); | |
578 | codec->reg_cache = kmemdup(wm8510_reg, sizeof(wm8510_reg), GFP_KERNEL); | |
579 | ||
580 | if (codec->reg_cache == NULL) | |
581 | return -ENOMEM; | |
582 | ||
17a52fd6 MB |
583 | ret = snd_soc_codec_set_cache_io(codec, 7, 9); |
584 | if (ret < 0) { | |
585 | printk(KERN_ERR "wm8510: failed to set cache I/O: %d\n", | |
586 | ret); | |
587 | goto err; | |
588 | } | |
589 | ||
5d421516 MB |
590 | wm8510_reset(codec); |
591 | ||
592 | /* register pcms */ | |
593 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
594 | if (ret < 0) { | |
595 | printk(KERN_ERR "wm8510: failed to create pcms\n"); | |
17a52fd6 | 596 | goto err; |
5d421516 MB |
597 | } |
598 | ||
599 | /* power on device */ | |
09af98b0 | 600 | codec->bias_level = SND_SOC_BIAS_OFF; |
5d421516 | 601 | wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
3e8e1952 IM |
602 | snd_soc_add_controls(codec, wm8510_snd_controls, |
603 | ARRAY_SIZE(wm8510_snd_controls)); | |
5d421516 | 604 | wm8510_add_widgets(codec); |
968a6025 | 605 | ret = snd_soc_init_card(socdev); |
5d421516 MB |
606 | if (ret < 0) { |
607 | printk(KERN_ERR "wm8510: failed to register card\n"); | |
608 | goto card_err; | |
609 | } | |
610 | return ret; | |
611 | ||
612 | card_err: | |
613 | snd_soc_free_pcms(socdev); | |
614 | snd_soc_dapm_free(socdev); | |
17a52fd6 | 615 | err: |
5d421516 MB |
616 | kfree(codec->reg_cache); |
617 | return ret; | |
618 | } | |
619 | ||
620 | static struct snd_soc_device *wm8510_socdev; | |
621 | ||
622 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
623 | ||
624 | /* | |
625 | * WM8510 2 wire address is 0x1a | |
626 | */ | |
5d421516 | 627 | |
41759c2e JD |
628 | static int wm8510_i2c_probe(struct i2c_client *i2c, |
629 | const struct i2c_device_id *id) | |
5d421516 MB |
630 | { |
631 | struct snd_soc_device *socdev = wm8510_socdev; | |
6627a653 | 632 | struct snd_soc_codec *codec = socdev->card->codec; |
5d421516 MB |
633 | int ret; |
634 | ||
5d421516 MB |
635 | i2c_set_clientdata(i2c, codec); |
636 | codec->control_data = i2c; | |
637 | ||
5d421516 | 638 | ret = wm8510_init(socdev); |
41759c2e | 639 | if (ret < 0) |
a5c95e90 | 640 | pr_err("failed to initialise WM8510\n"); |
5d421516 | 641 | |
5d421516 MB |
642 | return ret; |
643 | } | |
644 | ||
41759c2e | 645 | static int wm8510_i2c_remove(struct i2c_client *client) |
5d421516 MB |
646 | { |
647 | struct snd_soc_codec *codec = i2c_get_clientdata(client); | |
5d421516 | 648 | kfree(codec->reg_cache); |
5d421516 MB |
649 | return 0; |
650 | } | |
651 | ||
41759c2e JD |
652 | static const struct i2c_device_id wm8510_i2c_id[] = { |
653 | { "wm8510", 0 }, | |
654 | { } | |
655 | }; | |
656 | MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id); | |
5d421516 | 657 | |
5d421516 MB |
658 | static struct i2c_driver wm8510_i2c_driver = { |
659 | .driver = { | |
660 | .name = "WM8510 I2C Codec", | |
661 | .owner = THIS_MODULE, | |
662 | }, | |
41759c2e JD |
663 | .probe = wm8510_i2c_probe, |
664 | .remove = wm8510_i2c_remove, | |
665 | .id_table = wm8510_i2c_id, | |
5d421516 MB |
666 | }; |
667 | ||
41759c2e JD |
668 | static int wm8510_add_i2c_device(struct platform_device *pdev, |
669 | const struct wm8510_setup_data *setup) | |
670 | { | |
671 | struct i2c_board_info info; | |
672 | struct i2c_adapter *adapter; | |
673 | struct i2c_client *client; | |
674 | int ret; | |
675 | ||
676 | ret = i2c_add_driver(&wm8510_i2c_driver); | |
677 | if (ret != 0) { | |
678 | dev_err(&pdev->dev, "can't add i2c driver\n"); | |
679 | return ret; | |
680 | } | |
681 | ||
682 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
683 | info.addr = setup->i2c_address; | |
684 | strlcpy(info.type, "wm8510", I2C_NAME_SIZE); | |
685 | ||
686 | adapter = i2c_get_adapter(setup->i2c_bus); | |
687 | if (!adapter) { | |
688 | dev_err(&pdev->dev, "can't get i2c adapter %d\n", | |
689 | setup->i2c_bus); | |
690 | goto err_driver; | |
691 | } | |
692 | ||
693 | client = i2c_new_device(adapter, &info); | |
694 | i2c_put_adapter(adapter); | |
695 | if (!client) { | |
696 | dev_err(&pdev->dev, "can't add i2c device at 0x%x\n", | |
697 | (unsigned int)info.addr); | |
698 | goto err_driver; | |
699 | } | |
700 | ||
701 | return 0; | |
702 | ||
703 | err_driver: | |
704 | i2c_del_driver(&wm8510_i2c_driver); | |
705 | return -ENODEV; | |
706 | } | |
5d421516 MB |
707 | #endif |
708 | ||
5e357952 MB |
709 | #if defined(CONFIG_SPI_MASTER) |
710 | static int __devinit wm8510_spi_probe(struct spi_device *spi) | |
711 | { | |
712 | struct snd_soc_device *socdev = wm8510_socdev; | |
6627a653 | 713 | struct snd_soc_codec *codec = socdev->card->codec; |
5e357952 MB |
714 | int ret; |
715 | ||
716 | codec->control_data = spi; | |
717 | ||
718 | ret = wm8510_init(socdev); | |
719 | if (ret < 0) | |
720 | dev_err(&spi->dev, "failed to initialise WM8510\n"); | |
721 | ||
722 | return ret; | |
723 | } | |
724 | ||
725 | static int __devexit wm8510_spi_remove(struct spi_device *spi) | |
726 | { | |
727 | return 0; | |
728 | } | |
729 | ||
730 | static struct spi_driver wm8510_spi_driver = { | |
731 | .driver = { | |
732 | .name = "wm8510", | |
733 | .bus = &spi_bus_type, | |
734 | .owner = THIS_MODULE, | |
735 | }, | |
736 | .probe = wm8510_spi_probe, | |
737 | .remove = __devexit_p(wm8510_spi_remove), | |
738 | }; | |
739 | ||
740 | static int wm8510_spi_write(struct spi_device *spi, const char *data, int len) | |
741 | { | |
742 | struct spi_transfer t; | |
743 | struct spi_message m; | |
744 | u8 msg[2]; | |
745 | ||
746 | if (len <= 0) | |
747 | return 0; | |
748 | ||
749 | msg[0] = data[0]; | |
750 | msg[1] = data[1]; | |
751 | ||
752 | spi_message_init(&m); | |
753 | memset(&t, 0, (sizeof t)); | |
754 | ||
755 | t.tx_buf = &msg[0]; | |
756 | t.len = len; | |
757 | ||
758 | spi_message_add_tail(&t, &m); | |
759 | spi_sync(spi, &m); | |
760 | ||
761 | return len; | |
762 | } | |
763 | #endif /* CONFIG_SPI_MASTER */ | |
764 | ||
5d421516 MB |
765 | static int wm8510_probe(struct platform_device *pdev) |
766 | { | |
767 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
768 | struct wm8510_setup_data *setup; | |
769 | struct snd_soc_codec *codec; | |
770 | int ret = 0; | |
771 | ||
a5c95e90 | 772 | pr_info("WM8510 Audio Codec %s", WM8510_VERSION); |
5d421516 MB |
773 | |
774 | setup = socdev->codec_data; | |
775 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
776 | if (codec == NULL) | |
777 | return -ENOMEM; | |
778 | ||
6627a653 | 779 | socdev->card->codec = codec; |
5d421516 MB |
780 | mutex_init(&codec->mutex); |
781 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
782 | INIT_LIST_HEAD(&codec->dapm_paths); | |
783 | ||
784 | wm8510_socdev = socdev; | |
785 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
786 | if (setup->i2c_address) { | |
5d421516 | 787 | codec->hw_write = (hw_write_t)i2c_master_send; |
41759c2e | 788 | ret = wm8510_add_i2c_device(pdev, setup); |
5d421516 | 789 | } |
5e357952 MB |
790 | #endif |
791 | #if defined(CONFIG_SPI_MASTER) | |
792 | if (setup->spi) { | |
793 | codec->hw_write = (hw_write_t)wm8510_spi_write; | |
794 | ret = spi_register_driver(&wm8510_spi_driver); | |
795 | if (ret != 0) | |
796 | printk(KERN_ERR "can't add spi driver"); | |
797 | } | |
5d421516 | 798 | #endif |
3051e41a JD |
799 | |
800 | if (ret != 0) | |
801 | kfree(codec); | |
5d421516 MB |
802 | return ret; |
803 | } | |
804 | ||
805 | /* power down chip */ | |
806 | static int wm8510_remove(struct platform_device *pdev) | |
807 | { | |
808 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 809 | struct snd_soc_codec *codec = socdev->card->codec; |
5d421516 MB |
810 | |
811 | if (codec->control_data) | |
812 | wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
813 | ||
814 | snd_soc_free_pcms(socdev); | |
815 | snd_soc_dapm_free(socdev); | |
816 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
41759c2e | 817 | i2c_unregister_device(codec->control_data); |
5d421516 | 818 | i2c_del_driver(&wm8510_i2c_driver); |
5e357952 MB |
819 | #endif |
820 | #if defined(CONFIG_SPI_MASTER) | |
821 | spi_unregister_driver(&wm8510_spi_driver); | |
5d421516 MB |
822 | #endif |
823 | kfree(codec); | |
824 | ||
825 | return 0; | |
826 | } | |
827 | ||
828 | struct snd_soc_codec_device soc_codec_dev_wm8510 = { | |
829 | .probe = wm8510_probe, | |
830 | .remove = wm8510_remove, | |
831 | .suspend = wm8510_suspend, | |
832 | .resume = wm8510_resume, | |
833 | }; | |
834 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8510); | |
835 | ||
c9b3a40f | 836 | static int __init wm8510_modinit(void) |
64089b84 MB |
837 | { |
838 | return snd_soc_register_dai(&wm8510_dai); | |
839 | } | |
840 | module_init(wm8510_modinit); | |
841 | ||
842 | static void __exit wm8510_exit(void) | |
843 | { | |
844 | snd_soc_unregister_dai(&wm8510_dai); | |
845 | } | |
846 | module_exit(wm8510_exit); | |
847 | ||
5d421516 MB |
848 | MODULE_DESCRIPTION("ASoC WM8510 driver"); |
849 | MODULE_AUTHOR("Liam Girdwood"); | |
850 | MODULE_LICENSE("GPL"); |