Commit | Line | Data |
---|---|---|
bd6d4177 MA |
1 | /* |
2 | * wm8711.c -- WM8711 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2006 Wolfson Microelectronics | |
5 | * | |
6 | * Author: Mike Arthur <linux@wolfsonmicro.com> | |
7 | * | |
8 | * Based on wm8731.c by Richard Purdie | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/moduleparam.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/pm.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/platform_device.h> | |
bb262767 | 22 | #include <linux/spi/spi.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
bd6d4177 MA |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
28 | #include <sound/soc-dapm.h> | |
b5ab887e | 29 | #include <sound/tlv.h> |
bd6d4177 MA |
30 | #include <sound/initval.h> |
31 | ||
32 | #include "wm8711.h" | |
33 | ||
318b0b8d | 34 | static struct snd_soc_codec *wm8711_codec; |
bd6d4177 MA |
35 | |
36 | /* codec private data */ | |
37 | struct wm8711_priv { | |
318b0b8d MB |
38 | struct snd_soc_codec codec; |
39 | u16 reg_cache[WM8711_CACHEREGNUM]; | |
bd6d4177 MA |
40 | unsigned int sysclk; |
41 | }; | |
42 | ||
43 | /* | |
44 | * wm8711 register cache | |
45 | * We can't read the WM8711 register space when we are | |
46 | * using 2 wire for device control, so we cache them instead. | |
47 | * There is no point in caching the reset register | |
48 | */ | |
49 | static const u16 wm8711_reg[WM8711_CACHEREGNUM] = { | |
50 | 0x0079, 0x0079, 0x000a, 0x0008, | |
51 | 0x009f, 0x000a, 0x0000, 0x0000 | |
52 | }; | |
53 | ||
d97d2e35 | 54 | #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) |
bd6d4177 | 55 | |
b5ab887e MB |
56 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); |
57 | ||
bd6d4177 MA |
58 | static const struct snd_kcontrol_new wm8711_snd_controls[] = { |
59 | ||
b5ab887e MB |
60 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V, |
61 | 0, 127, 0, out_tlv), | |
bd6d4177 MA |
62 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V, |
63 | 7, 1, 0), | |
64 | ||
65 | }; | |
66 | ||
bd6d4177 MA |
67 | /* Output Mixer */ |
68 | static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = { | |
69 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0), | |
70 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0), | |
71 | }; | |
72 | ||
73 | static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = { | |
74 | SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1, | |
75 | &wm8711_output_mixer_controls[0], | |
76 | ARRAY_SIZE(wm8711_output_mixer_controls)), | |
77 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1), | |
78 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
79 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
80 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
81 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
82 | }; | |
83 | ||
84 | static const struct snd_soc_dapm_route intercon[] = { | |
85 | /* output mixer */ | |
86 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
87 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
88 | ||
89 | /* outputs */ | |
90 | {"RHPOUT", NULL, "Output Mixer"}, | |
91 | {"ROUT", NULL, "Output Mixer"}, | |
92 | {"LHPOUT", NULL, "Output Mixer"}, | |
93 | {"LOUT", NULL, "Output Mixer"}, | |
94 | }; | |
95 | ||
96 | static int wm8711_add_widgets(struct snd_soc_codec *codec) | |
97 | { | |
98 | snd_soc_dapm_new_controls(codec, wm8711_dapm_widgets, | |
99 | ARRAY_SIZE(wm8711_dapm_widgets)); | |
100 | ||
101 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); | |
102 | ||
bd6d4177 MA |
103 | return 0; |
104 | } | |
105 | ||
106 | struct _coeff_div { | |
107 | u32 mclk; | |
108 | u32 rate; | |
109 | u16 fs; | |
110 | u8 sr:4; | |
111 | u8 bosr:1; | |
112 | u8 usb:1; | |
113 | }; | |
114 | ||
115 | /* codec mclk clock divider coefficients */ | |
116 | static const struct _coeff_div coeff_div[] = { | |
117 | /* 48k */ | |
118 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
119 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
120 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
121 | ||
122 | /* 32k */ | |
123 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
124 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
125 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, | |
126 | ||
127 | /* 8k */ | |
128 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
129 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
130 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
131 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
132 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
133 | ||
134 | /* 96k */ | |
135 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
136 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
137 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
138 | ||
139 | /* 44.1k */ | |
140 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
141 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
142 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
143 | ||
144 | /* 88.2k */ | |
145 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
146 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
147 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
148 | }; | |
149 | ||
150 | static inline int get_coeff(int mclk, int rate) | |
151 | { | |
152 | int i; | |
153 | ||
154 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
155 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
156 | return i; | |
157 | } | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static int wm8711_hw_params(struct snd_pcm_substream *substream, | |
162 | struct snd_pcm_hw_params *params, | |
163 | struct snd_soc_dai *dai) | |
164 | { | |
165 | struct snd_soc_codec *codec = dai->codec; | |
b2c812e2 | 166 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
d97d2e35 | 167 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc; |
bd6d4177 MA |
168 | int i = get_coeff(wm8711->sysclk, params_rate(params)); |
169 | u16 srate = (coeff_div[i].sr << 2) | | |
170 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
171 | ||
d97d2e35 | 172 | snd_soc_write(codec, WM8711_SRATE, srate); |
bd6d4177 MA |
173 | |
174 | /* bit size */ | |
175 | switch (params_format(params)) { | |
176 | case SNDRV_PCM_FORMAT_S16_LE: | |
177 | break; | |
178 | case SNDRV_PCM_FORMAT_S20_3LE: | |
179 | iface |= 0x0004; | |
180 | break; | |
181 | case SNDRV_PCM_FORMAT_S24_LE: | |
182 | iface |= 0x0008; | |
183 | break; | |
184 | } | |
185 | ||
d97d2e35 | 186 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
187 | return 0; |
188 | } | |
189 | ||
190 | static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, | |
191 | struct snd_soc_dai *dai) | |
192 | { | |
193 | struct snd_soc_codec *codec = dai->codec; | |
194 | ||
195 | /* set active */ | |
d97d2e35 | 196 | snd_soc_write(codec, WM8711_ACTIVE, 0x0001); |
bd6d4177 MA |
197 | |
198 | return 0; | |
199 | } | |
200 | ||
201 | static void wm8711_shutdown(struct snd_pcm_substream *substream, | |
202 | struct snd_soc_dai *dai) | |
203 | { | |
204 | struct snd_soc_codec *codec = dai->codec; | |
205 | ||
206 | /* deactivate */ | |
207 | if (!codec->active) { | |
208 | udelay(50); | |
d97d2e35 | 209 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
210 | } |
211 | } | |
212 | ||
213 | static int wm8711_mute(struct snd_soc_dai *dai, int mute) | |
214 | { | |
215 | struct snd_soc_codec *codec = dai->codec; | |
d97d2e35 | 216 | u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; |
bd6d4177 MA |
217 | |
218 | if (mute) | |
d97d2e35 | 219 | snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); |
bd6d4177 | 220 | else |
d97d2e35 | 221 | snd_soc_write(codec, WM8711_APDIGI, mute_reg); |
bd6d4177 MA |
222 | |
223 | return 0; | |
224 | } | |
225 | ||
226 | static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
227 | int clk_id, unsigned int freq, int dir) | |
228 | { | |
229 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 230 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
bd6d4177 MA |
231 | |
232 | switch (freq) { | |
233 | case 11289600: | |
234 | case 12000000: | |
235 | case 12288000: | |
236 | case 16934400: | |
237 | case 18432000: | |
238 | wm8711->sysclk = freq; | |
239 | return 0; | |
240 | } | |
241 | return -EINVAL; | |
242 | } | |
243 | ||
244 | static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
245 | unsigned int fmt) | |
246 | { | |
247 | struct snd_soc_codec *codec = codec_dai->codec; | |
248 | u16 iface = 0; | |
249 | ||
250 | /* set master/slave audio interface */ | |
251 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
252 | case SND_SOC_DAIFMT_CBM_CFM: | |
253 | iface |= 0x0040; | |
254 | break; | |
255 | case SND_SOC_DAIFMT_CBS_CFS: | |
256 | break; | |
257 | default: | |
258 | return -EINVAL; | |
259 | } | |
260 | ||
261 | /* interface format */ | |
262 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
263 | case SND_SOC_DAIFMT_I2S: | |
264 | iface |= 0x0002; | |
265 | break; | |
266 | case SND_SOC_DAIFMT_RIGHT_J: | |
267 | break; | |
268 | case SND_SOC_DAIFMT_LEFT_J: | |
269 | iface |= 0x0001; | |
270 | break; | |
271 | case SND_SOC_DAIFMT_DSP_A: | |
272 | iface |= 0x0003; | |
273 | break; | |
274 | case SND_SOC_DAIFMT_DSP_B: | |
275 | iface |= 0x0013; | |
276 | break; | |
277 | default: | |
278 | return -EINVAL; | |
279 | } | |
280 | ||
281 | /* clock inversion */ | |
282 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
283 | case SND_SOC_DAIFMT_NB_NF: | |
284 | break; | |
285 | case SND_SOC_DAIFMT_IB_IF: | |
286 | iface |= 0x0090; | |
287 | break; | |
288 | case SND_SOC_DAIFMT_IB_NF: | |
289 | iface |= 0x0080; | |
290 | break; | |
291 | case SND_SOC_DAIFMT_NB_IF: | |
292 | iface |= 0x0010; | |
293 | break; | |
294 | default: | |
295 | return -EINVAL; | |
296 | } | |
297 | ||
298 | /* set iface */ | |
d97d2e35 | 299 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
300 | return 0; |
301 | } | |
302 | ||
303 | ||
304 | static int wm8711_set_bias_level(struct snd_soc_codec *codec, | |
305 | enum snd_soc_bias_level level) | |
306 | { | |
d97d2e35 | 307 | u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; |
bd6d4177 MA |
308 | |
309 | switch (level) { | |
310 | case SND_SOC_BIAS_ON: | |
d97d2e35 | 311 | snd_soc_write(codec, WM8711_PWR, reg); |
bd6d4177 MA |
312 | break; |
313 | case SND_SOC_BIAS_PREPARE: | |
314 | break; | |
315 | case SND_SOC_BIAS_STANDBY: | |
d97d2e35 | 316 | snd_soc_write(codec, WM8711_PWR, reg | 0x0040); |
bd6d4177 MA |
317 | break; |
318 | case SND_SOC_BIAS_OFF: | |
d97d2e35 MB |
319 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
320 | snd_soc_write(codec, WM8711_PWR, 0xffff); | |
bd6d4177 MA |
321 | break; |
322 | } | |
323 | codec->bias_level = level; | |
324 | return 0; | |
325 | } | |
326 | ||
431f7771 | 327 | #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 |
bd6d4177 MA |
328 | |
329 | #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
330 | SNDRV_PCM_FMTBIT_S24_LE) | |
331 | ||
332 | static struct snd_soc_dai_ops wm8711_ops = { | |
333 | .prepare = wm8711_pcm_prepare, | |
334 | .hw_params = wm8711_hw_params, | |
335 | .shutdown = wm8711_shutdown, | |
336 | .digital_mute = wm8711_mute, | |
337 | .set_sysclk = wm8711_set_dai_sysclk, | |
338 | .set_fmt = wm8711_set_dai_fmt, | |
339 | }; | |
340 | ||
341 | struct snd_soc_dai wm8711_dai = { | |
342 | .name = "WM8711", | |
343 | .playback = { | |
344 | .stream_name = "Playback", | |
345 | .channels_min = 1, | |
346 | .channels_max = 2, | |
347 | .rates = WM8711_RATES, | |
431f7771 MB |
348 | .formats = WM8711_FORMATS, |
349 | }, | |
bd6d4177 MA |
350 | .ops = &wm8711_ops, |
351 | }; | |
352 | EXPORT_SYMBOL_GPL(wm8711_dai); | |
353 | ||
354 | static int wm8711_suspend(struct platform_device *pdev, pm_message_t state) | |
355 | { | |
356 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
357 | struct snd_soc_codec *codec = socdev->card->codec; | |
358 | ||
d97d2e35 | 359 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
360 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
361 | return 0; | |
362 | } | |
363 | ||
364 | static int wm8711_resume(struct platform_device *pdev) | |
365 | { | |
366 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
367 | struct snd_soc_codec *codec = socdev->card->codec; | |
368 | int i; | |
369 | u8 data[2]; | |
370 | u16 *cache = codec->reg_cache; | |
371 | ||
372 | /* Sync reg_cache with the hardware */ | |
373 | for (i = 0; i < ARRAY_SIZE(wm8711_reg); i++) { | |
374 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
375 | data[1] = cache[i] & 0x00ff; | |
376 | codec->hw_write(codec->control_data, data, 2); | |
377 | } | |
378 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
29e189c2 | 379 | |
bd6d4177 MA |
380 | return 0; |
381 | } | |
382 | ||
318b0b8d | 383 | static int wm8711_probe(struct platform_device *pdev) |
bd6d4177 | 384 | { |
318b0b8d MB |
385 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
386 | struct snd_soc_codec *codec; | |
387 | int ret = 0; | |
bd6d4177 | 388 | |
318b0b8d MB |
389 | if (wm8711_codec == NULL) { |
390 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
391 | return -ENODEV; | |
392 | } | |
bd6d4177 | 393 | |
318b0b8d MB |
394 | socdev->card->codec = wm8711_codec; |
395 | codec = wm8711_codec; | |
bd6d4177 MA |
396 | |
397 | /* register pcms */ | |
398 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
399 | if (ret < 0) { | |
318b0b8d | 400 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); |
bd6d4177 MA |
401 | goto pcm_err; |
402 | } | |
403 | ||
318b0b8d MB |
404 | snd_soc_add_controls(codec, wm8711_snd_controls, |
405 | ARRAY_SIZE(wm8711_snd_controls)); | |
bd6d4177 | 406 | wm8711_add_widgets(codec); |
318b0b8d | 407 | |
bd6d4177 MA |
408 | return ret; |
409 | ||
bd6d4177 | 410 | pcm_err: |
bd6d4177 MA |
411 | return ret; |
412 | } | |
413 | ||
318b0b8d MB |
414 | /* power down chip */ |
415 | static int wm8711_remove(struct platform_device *pdev) | |
416 | { | |
417 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
bd6d4177 | 418 | |
318b0b8d MB |
419 | snd_soc_free_pcms(socdev); |
420 | snd_soc_dapm_free(socdev); | |
bd6d4177 | 421 | |
318b0b8d MB |
422 | return 0; |
423 | } | |
bd6d4177 | 424 | |
318b0b8d MB |
425 | struct snd_soc_codec_device soc_codec_dev_wm8711 = { |
426 | .probe = wm8711_probe, | |
427 | .remove = wm8711_remove, | |
428 | .suspend = wm8711_suspend, | |
429 | .resume = wm8711_resume, | |
430 | }; | |
431 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8711); | |
bd6d4177 | 432 | |
d97d2e35 MB |
433 | static int wm8711_register(struct wm8711_priv *wm8711, |
434 | enum snd_soc_control_type control) | |
bd6d4177 | 435 | { |
bd6d4177 | 436 | int ret; |
318b0b8d MB |
437 | struct snd_soc_codec *codec = &wm8711->codec; |
438 | u16 reg; | |
bd6d4177 | 439 | |
318b0b8d MB |
440 | if (wm8711_codec) { |
441 | dev_err(codec->dev, "Another WM8711 is registered\n"); | |
2c2749de AL |
442 | ret = -EINVAL; |
443 | goto err; | |
bd6d4177 MA |
444 | } |
445 | ||
318b0b8d MB |
446 | mutex_init(&codec->mutex); |
447 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
448 | INIT_LIST_HEAD(&codec->dapm_paths); | |
bd6d4177 | 449 | |
b2c812e2 | 450 | snd_soc_codec_set_drvdata(codec, wm8711); |
318b0b8d MB |
451 | codec->name = "WM8711"; |
452 | codec->owner = THIS_MODULE; | |
318b0b8d MB |
453 | codec->bias_level = SND_SOC_BIAS_OFF; |
454 | codec->set_bias_level = wm8711_set_bias_level; | |
455 | codec->dai = &wm8711_dai; | |
456 | codec->num_dai = 1; | |
457 | codec->reg_cache_size = WM8711_CACHEREGNUM; | |
458 | codec->reg_cache = &wm8711->reg_cache; | |
bd6d4177 | 459 | |
318b0b8d | 460 | memcpy(codec->reg_cache, wm8711_reg, sizeof(wm8711_reg)); |
bd6d4177 | 461 | |
d97d2e35 MB |
462 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); |
463 | if (ret < 0) { | |
464 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
465 | goto err; | |
466 | } | |
467 | ||
318b0b8d | 468 | ret = wm8711_reset(codec); |
bd6d4177 | 469 | if (ret < 0) { |
318b0b8d | 470 | dev_err(codec->dev, "Failed to issue reset\n"); |
d97d2e35 | 471 | goto err; |
bd6d4177 | 472 | } |
bd6d4177 | 473 | |
318b0b8d | 474 | wm8711_dai.dev = codec->dev; |
bd6d4177 | 475 | |
318b0b8d MB |
476 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
477 | ||
478 | /* Latch the update bits */ | |
d97d2e35 MB |
479 | reg = snd_soc_read(codec, WM8711_LOUT1V); |
480 | snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100); | |
481 | reg = snd_soc_read(codec, WM8711_ROUT1V); | |
482 | snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100); | |
318b0b8d MB |
483 | |
484 | wm8711_codec = codec; | |
485 | ||
486 | ret = snd_soc_register_codec(codec); | |
487 | if (ret != 0) { | |
488 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
d97d2e35 | 489 | goto err; |
318b0b8d MB |
490 | } |
491 | ||
492 | ret = snd_soc_register_dai(&wm8711_dai); | |
493 | if (ret != 0) { | |
494 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
d97d2e35 | 495 | goto err_codec; |
318b0b8d | 496 | } |
bd6d4177 | 497 | |
bd6d4177 | 498 | return 0; |
d97d2e35 MB |
499 | |
500 | err_codec: | |
501 | snd_soc_unregister_codec(codec); | |
502 | err: | |
503 | kfree(wm8711); | |
504 | return ret; | |
bd6d4177 MA |
505 | } |
506 | ||
318b0b8d | 507 | static void wm8711_unregister(struct wm8711_priv *wm8711) |
bd6d4177 | 508 | { |
318b0b8d MB |
509 | wm8711_set_bias_level(&wm8711->codec, SND_SOC_BIAS_OFF); |
510 | snd_soc_unregister_dai(&wm8711_dai); | |
511 | snd_soc_unregister_codec(&wm8711->codec); | |
512 | kfree(wm8711); | |
513 | wm8711_codec = NULL; | |
bd6d4177 MA |
514 | } |
515 | ||
08aff8cd MB |
516 | #if defined(CONFIG_SPI_MASTER) |
517 | static int __devinit wm8711_spi_probe(struct spi_device *spi) | |
518 | { | |
519 | struct snd_soc_codec *codec; | |
520 | struct wm8711_priv *wm8711; | |
521 | ||
522 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
523 | if (wm8711 == NULL) | |
524 | return -ENOMEM; | |
525 | ||
526 | codec = &wm8711->codec; | |
527 | codec->control_data = spi; | |
528 | codec->dev = &spi->dev; | |
529 | ||
530 | dev_set_drvdata(&spi->dev, wm8711); | |
531 | ||
532 | return wm8711_register(wm8711, SND_SOC_SPI); | |
533 | } | |
534 | ||
535 | static int __devexit wm8711_spi_remove(struct spi_device *spi) | |
536 | { | |
537 | struct wm8711_priv *wm8711 = dev_get_drvdata(&spi->dev); | |
538 | ||
539 | wm8711_unregister(wm8711); | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
08aff8cd MB |
544 | static struct spi_driver wm8711_spi_driver = { |
545 | .driver = { | |
546 | .name = "wm8711", | |
547 | .bus = &spi_bus_type, | |
548 | .owner = THIS_MODULE, | |
549 | }, | |
550 | .probe = wm8711_spi_probe, | |
08aff8cd MB |
551 | .remove = __devexit_p(wm8711_spi_remove), |
552 | }; | |
553 | #endif /* CONFIG_SPI_MASTER */ | |
554 | ||
318b0b8d MB |
555 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
556 | static __devinit int wm8711_i2c_probe(struct i2c_client *i2c, | |
557 | const struct i2c_device_id *id) | |
bd6d4177 | 558 | { |
bd6d4177 | 559 | struct wm8711_priv *wm8711; |
318b0b8d | 560 | struct snd_soc_codec *codec; |
bd6d4177 MA |
561 | |
562 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
318b0b8d | 563 | if (wm8711 == NULL) |
bd6d4177 | 564 | return -ENOMEM; |
bd6d4177 | 565 | |
318b0b8d MB |
566 | codec = &wm8711->codec; |
567 | codec->hw_write = (hw_write_t)i2c_master_send; | |
bd6d4177 | 568 | |
318b0b8d MB |
569 | i2c_set_clientdata(i2c, wm8711); |
570 | codec->control_data = i2c; | |
bd6d4177 | 571 | |
318b0b8d | 572 | codec->dev = &i2c->dev; |
bd6d4177 | 573 | |
d97d2e35 | 574 | return wm8711_register(wm8711, SND_SOC_I2C); |
318b0b8d | 575 | } |
bd6d4177 | 576 | |
318b0b8d MB |
577 | static __devexit int wm8711_i2c_remove(struct i2c_client *client) |
578 | { | |
579 | struct wm8711_priv *wm8711 = i2c_get_clientdata(client); | |
580 | wm8711_unregister(wm8711); | |
bd6d4177 MA |
581 | return 0; |
582 | } | |
583 | ||
318b0b8d MB |
584 | static const struct i2c_device_id wm8711_i2c_id[] = { |
585 | { "wm8711", 0 }, | |
586 | { } | |
bd6d4177 | 587 | }; |
318b0b8d MB |
588 | MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); |
589 | ||
590 | static struct i2c_driver wm8711_i2c_driver = { | |
591 | .driver = { | |
592 | .name = "WM8711 I2C Codec", | |
593 | .owner = THIS_MODULE, | |
594 | }, | |
595 | .probe = wm8711_i2c_probe, | |
596 | .remove = __devexit_p(wm8711_i2c_remove), | |
597 | .id_table = wm8711_i2c_id, | |
598 | }; | |
599 | #endif | |
bd6d4177 MA |
600 | |
601 | static int __init wm8711_modinit(void) | |
602 | { | |
318b0b8d MB |
603 | int ret; |
604 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
605 | ret = i2c_add_driver(&wm8711_i2c_driver); | |
606 | if (ret != 0) { | |
607 | printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", | |
608 | ret); | |
609 | } | |
08aff8cd MB |
610 | #endif |
611 | #if defined(CONFIG_SPI_MASTER) | |
bb262767 | 612 | ret = spi_register_driver(&wm8711_spi_driver); |
08aff8cd | 613 | if (ret != 0) { |
bb262767 | 614 | printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", |
08aff8cd MB |
615 | ret); |
616 | } | |
318b0b8d MB |
617 | #endif |
618 | return 0; | |
bd6d4177 MA |
619 | } |
620 | module_init(wm8711_modinit); | |
621 | ||
622 | static void __exit wm8711_exit(void) | |
623 | { | |
318b0b8d MB |
624 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
625 | i2c_del_driver(&wm8711_i2c_driver); | |
626 | #endif | |
08aff8cd | 627 | #if defined(CONFIG_SPI_MASTER) |
bb262767 | 628 | spi_unregister_driver(&wm8711_spi_driver); |
08aff8cd | 629 | #endif |
bd6d4177 MA |
630 | } |
631 | module_exit(wm8711_exit); | |
632 | ||
633 | MODULE_DESCRIPTION("ASoC WM8711 driver"); | |
634 | MODULE_AUTHOR("Mike Arthur"); | |
635 | MODULE_LICENSE("GPL"); |