2 * wm8960.c -- WM8960 ALSA SoC Audio driver
4 * Author: Liam Girdwood
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
16 #include <linux/i2c.h>
17 #include <linux/platform_device.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/pcm_params.h>
21 #include <sound/soc.h>
22 #include <sound/soc-dapm.h>
23 #include <sound/initval.h>
24 #include <sound/tlv.h>
28 #define AUDIO_NAME "wm8960"
30 struct snd_soc_codec_device soc_codec_dev_wm8960;
33 #define WM8960_VREF 0x40
35 /* R28 - Anti-pop 1 */
36 #define WM8960_POBCTRL 0x80
37 #define WM8960_BUFDCOPEN 0x10
38 #define WM8960_BUFIOEN 0x08
39 #define WM8960_SOFT_ST 0x04
40 #define WM8960_HPSTBY 0x01
42 /* R29 - Anti-pop 2 */
43 #define WM8960_DISOP 0x40
46 * wm8960 register cache
47 * We can't read the WM8960 register space when we are
48 * using 2 wire for device control, so we cache them instead.
50 static const u16 wm8960_reg[WM8960_CACHEREGNUM] = {
51 0x0097, 0x0097, 0x0000, 0x0000,
52 0x0000, 0x0008, 0x0000, 0x000a,
53 0x01c0, 0x0000, 0x00ff, 0x00ff,
54 0x0000, 0x0000, 0x0000, 0x0000,
55 0x0000, 0x007b, 0x0100, 0x0032,
56 0x0000, 0x00c3, 0x00c3, 0x01c0,
57 0x0000, 0x0000, 0x0000, 0x0000,
58 0x0000, 0x0000, 0x0000, 0x0000,
59 0x0100, 0x0100, 0x0050, 0x0050,
60 0x0050, 0x0050, 0x0000, 0x0000,
61 0x0000, 0x0000, 0x0040, 0x0000,
62 0x0000, 0x0050, 0x0050, 0x0000,
63 0x0002, 0x0037, 0x004d, 0x0080,
64 0x0008, 0x0031, 0x0026, 0x00e9,
68 u16 reg_cache[WM8960_CACHEREGNUM];
69 struct snd_soc_codec codec;
73 * read wm8960 register cache
75 static inline unsigned int wm8960_read_reg_cache(struct snd_soc_codec *codec,
78 u16 *cache = codec->reg_cache;
79 if (reg == WM8960_RESET)
81 if (reg >= WM8960_CACHEREGNUM)
87 * write wm8960 register cache
89 static inline void wm8960_write_reg_cache(struct snd_soc_codec *codec,
90 u16 reg, unsigned int value)
92 u16 *cache = codec->reg_cache;
93 if (reg >= WM8960_CACHEREGNUM)
98 static inline unsigned int wm8960_read(struct snd_soc_codec *codec,
101 return wm8960_read_reg_cache(codec, reg);
105 * write to the WM8960 register space
107 static int wm8960_write(struct snd_soc_codec *codec, unsigned int reg,
113 * D15..D9 WM8960 register offset
114 * D8...D0 register data
116 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
117 data[1] = value & 0x00ff;
119 wm8960_write_reg_cache(codec, reg, value);
120 if (codec->hw_write(codec->control_data, data, 2) == 2)
126 #define wm8960_reset(c) wm8960_write(c, WM8960_RESET, 0)
128 /* enumerated controls */
129 static const char *wm8960_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
130 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
131 "Right Inverted", "Stereo Inversion"};
132 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
133 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
134 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
135 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
137 static const struct soc_enum wm8960_enum[] = {
138 SOC_ENUM_SINGLE(WM8960_DACCTL1, 1, 4, wm8960_deemph),
139 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
140 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
141 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
142 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
143 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
144 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
147 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
148 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
149 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
150 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
152 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
153 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
155 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
157 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
160 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
163 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
165 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
168 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
170 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
172 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
173 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
175 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
176 SOC_ENUM("ADC Polarity", wm8960_enum[1]),
177 SOC_ENUM("Playback De-emphasis", wm8960_enum[0]),
178 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
180 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
182 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[3]),
183 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[4]),
184 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
185 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
187 SOC_ENUM("ALC Function", wm8960_enum[5]),
188 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
189 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
190 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
191 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
192 SOC_ENUM("ALC Mode", wm8960_enum[6]),
193 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
194 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
196 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
197 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
199 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
202 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
203 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
204 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
205 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
206 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
207 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
208 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
209 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
212 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
213 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
214 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
215 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
218 static const struct snd_kcontrol_new wm8960_lin[] = {
219 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
222 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
223 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
224 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
225 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
228 static const struct snd_kcontrol_new wm8960_rin[] = {
229 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
232 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
233 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
234 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
235 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
238 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
239 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
240 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
241 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
244 static const struct snd_kcontrol_new wm8960_mono_out[] = {
245 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
246 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
249 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
250 SND_SOC_DAPM_INPUT("LINPUT1"),
251 SND_SOC_DAPM_INPUT("RINPUT1"),
252 SND_SOC_DAPM_INPUT("LINPUT2"),
253 SND_SOC_DAPM_INPUT("RINPUT2"),
254 SND_SOC_DAPM_INPUT("LINPUT3"),
255 SND_SOC_DAPM_INPUT("RINPUT3"),
257 SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1, 1, 0),
259 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
260 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
261 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
262 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
264 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
265 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
266 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
267 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
269 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
270 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
272 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
273 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
275 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
276 &wm8960_loutput_mixer[0],
277 ARRAY_SIZE(wm8960_loutput_mixer)),
278 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
279 &wm8960_routput_mixer[0],
280 ARRAY_SIZE(wm8960_routput_mixer)),
282 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
284 ARRAY_SIZE(wm8960_mono_out)),
286 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
287 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
289 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
290 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
292 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
293 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
295 SND_SOC_DAPM_OUTPUT("SPK_LP"),
296 SND_SOC_DAPM_OUTPUT("SPK_LN"),
297 SND_SOC_DAPM_OUTPUT("HP_L"),
298 SND_SOC_DAPM_OUTPUT("HP_R"),
299 SND_SOC_DAPM_OUTPUT("SPK_RP"),
300 SND_SOC_DAPM_OUTPUT("SPK_RN"),
301 SND_SOC_DAPM_OUTPUT("OUT3"),
304 static const struct snd_soc_dapm_route audio_paths[] = {
305 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
306 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
307 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
309 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
310 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
311 { "Left Input Mixer", NULL, "LINPUT2" },
312 { "Left Input Mixer", NULL, "LINPUT3" },
314 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
315 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
316 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
318 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
319 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
320 { "Right Input Mixer", NULL, "RINPUT2" },
321 { "Right Input Mixer", NULL, "LINPUT3" },
323 { "Left ADC", NULL, "Left Input Mixer" },
324 { "Right ADC", NULL, "Right Input Mixer" },
326 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
327 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
328 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
330 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
331 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
332 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
334 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
335 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
337 { "LOUT1 PGA", NULL, "Left Output Mixer" },
338 { "ROUT1 PGA", NULL, "Right Output Mixer" },
340 { "HP_L", NULL, "LOUT1 PGA" },
341 { "HP_R", NULL, "ROUT1 PGA" },
343 { "Left Speaker PGA", NULL, "Left Output Mixer" },
344 { "Right Speaker PGA", NULL, "Right Output Mixer" },
346 { "Left Speaker Output", NULL, "Left Speaker PGA" },
347 { "Right Speaker Output", NULL, "Right Speaker PGA" },
349 { "SPK_LN", NULL, "Left Speaker Output" },
350 { "SPK_LP", NULL, "Left Speaker Output" },
351 { "SPK_RN", NULL, "Right Speaker Output" },
352 { "SPK_RP", NULL, "Right Speaker Output" },
354 { "OUT3", NULL, "Mono Output Mixer", }
357 static int wm8960_add_widgets(struct snd_soc_codec *codec)
359 snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets,
360 ARRAY_SIZE(wm8960_dapm_widgets));
362 snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
364 snd_soc_dapm_new_widgets(codec);
368 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
371 struct snd_soc_codec *codec = codec_dai->codec;
374 /* set master/slave audio interface */
375 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
376 case SND_SOC_DAIFMT_CBM_CFM:
379 case SND_SOC_DAIFMT_CBS_CFS:
385 /* interface format */
386 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
387 case SND_SOC_DAIFMT_I2S:
390 case SND_SOC_DAIFMT_RIGHT_J:
392 case SND_SOC_DAIFMT_LEFT_J:
395 case SND_SOC_DAIFMT_DSP_A:
398 case SND_SOC_DAIFMT_DSP_B:
405 /* clock inversion */
406 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
407 case SND_SOC_DAIFMT_NB_NF:
409 case SND_SOC_DAIFMT_IB_IF:
412 case SND_SOC_DAIFMT_IB_NF:
415 case SND_SOC_DAIFMT_NB_IF:
423 wm8960_write(codec, WM8960_IFACE1, iface);
427 static int wm8960_hw_params(struct snd_pcm_substream *substream,
428 struct snd_pcm_hw_params *params,
429 struct snd_soc_dai *dai)
431 struct snd_soc_pcm_runtime *rtd = substream->private_data;
432 struct snd_soc_device *socdev = rtd->socdev;
433 struct snd_soc_codec *codec = socdev->card->codec;
434 u16 iface = wm8960_read(codec, WM8960_IFACE1) & 0xfff3;
437 switch (params_format(params)) {
438 case SNDRV_PCM_FORMAT_S16_LE:
440 case SNDRV_PCM_FORMAT_S20_3LE:
443 case SNDRV_PCM_FORMAT_S24_LE:
449 wm8960_write(codec, WM8960_IFACE1, iface);
453 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
455 struct snd_soc_codec *codec = dai->codec;
456 u16 mute_reg = wm8960_read(codec, WM8960_DACCTL1) & 0xfff7;
459 wm8960_write(codec, WM8960_DACCTL1, mute_reg | 0x8);
461 wm8960_write(codec, WM8960_DACCTL1, mute_reg);
465 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
466 enum snd_soc_bias_level level)
468 struct wm8960_data *pdata = codec->dev->platform_data;
472 case SND_SOC_BIAS_ON:
475 case SND_SOC_BIAS_PREPARE:
476 /* Set VMID to 2x50k */
477 reg = wm8960_read(codec, WM8960_POWER1);
480 wm8960_write(codec, WM8960_POWER1, reg);
483 case SND_SOC_BIAS_STANDBY:
484 if (codec->bias_level == SND_SOC_BIAS_OFF) {
485 /* Enable anti-pop features */
486 wm8960_write(codec, WM8960_APOP1,
487 WM8960_POBCTRL | WM8960_SOFT_ST |
488 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
490 /* Discharge HP output */
493 reg |= pdata->dres << 4;
494 wm8960_write(codec, WM8960_APOP2, reg);
498 wm8960_write(codec, WM8960_APOP2, 0);
500 /* Enable & ramp VMID at 2x50k */
501 reg = wm8960_read(codec, WM8960_POWER1);
503 wm8960_write(codec, WM8960_POWER1, reg);
507 wm8960_write(codec, WM8960_POWER1, reg | WM8960_VREF);
509 /* Disable anti-pop features */
510 wm8960_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
513 /* Set VMID to 2x250k */
514 reg = wm8960_read(codec, WM8960_POWER1);
517 wm8960_write(codec, WM8960_POWER1, reg);
520 case SND_SOC_BIAS_OFF:
521 /* Enable anti-pop features */
522 wm8960_write(codec, WM8960_APOP1,
523 WM8960_POBCTRL | WM8960_SOFT_ST |
524 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
526 /* Disable VMID and VREF, let them discharge */
527 wm8960_write(codec, WM8960_POWER1, 0);
530 wm8960_write(codec, WM8960_APOP1, 0);
534 codec->bias_level = level;
546 /* The size in bits of the pll divide multiplied by 10
547 * to allow rounding later */
548 #define FIXED_PLL_SIZE ((1 << 24) * 10)
550 static int pll_factors(unsigned int source, unsigned int target,
551 struct _pll_div *pll_div)
553 unsigned long long Kpart;
554 unsigned int K, Ndiv, Nmod;
556 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
558 /* Scale up target to PLL operating frequency */
561 Ndiv = target / source;
564 pll_div->pre_div = 1;
565 Ndiv = target / source;
567 pll_div->pre_div = 0;
569 if ((Ndiv < 6) || (Ndiv > 12)) {
570 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
575 Nmod = target % source;
576 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
578 do_div(Kpart, source);
580 K = Kpart & 0xFFFFFFFF;
582 /* Check if we need to round */
586 /* Move down to proper range now rounding is done */
591 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
592 pll_div->n, pll_div->k, pll_div->pre_div);
597 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai,
598 int pll_id, unsigned int freq_in, unsigned int freq_out)
600 struct snd_soc_codec *codec = codec_dai->codec;
602 static struct _pll_div pll_div;
605 if (freq_in && freq_out) {
606 ret = pll_factors(freq_in, freq_out, &pll_div);
611 /* Disable the PLL: even if we are changing the frequency the
612 * PLL needs to be disabled while we do so. */
613 wm8960_write(codec, WM8960_CLOCK1,
614 wm8960_read(codec, WM8960_CLOCK1) & ~1);
615 wm8960_write(codec, WM8960_POWER2,
616 wm8960_read(codec, WM8960_POWER2) & ~1);
618 if (!freq_in || !freq_out)
621 reg = wm8960_read(codec, WM8960_PLL1) & ~0x3f;
622 reg |= pll_div.pre_div << 4;
628 wm8960_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
629 wm8960_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
630 wm8960_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
632 wm8960_write(codec, WM8960_PLL1, reg);
635 wm8960_write(codec, WM8960_POWER2,
636 wm8960_read(codec, WM8960_POWER2) | 1);
638 wm8960_write(codec, WM8960_CLOCK1,
639 wm8960_read(codec, WM8960_CLOCK1) | 1);
644 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
647 struct snd_soc_codec *codec = codec_dai->codec;
651 case WM8960_SYSCLKSEL:
652 reg = wm8960_read(codec, WM8960_CLOCK1) & 0x1fe;
653 wm8960_write(codec, WM8960_CLOCK1, reg | div);
655 case WM8960_SYSCLKDIV:
656 reg = wm8960_read(codec, WM8960_CLOCK1) & 0x1f9;
657 wm8960_write(codec, WM8960_CLOCK1, reg | div);
660 reg = wm8960_read(codec, WM8960_CLOCK1) & 0x1c7;
661 wm8960_write(codec, WM8960_CLOCK1, reg | div);
663 case WM8960_OPCLKDIV:
664 reg = wm8960_read(codec, WM8960_PLL1) & 0x03f;
665 wm8960_write(codec, WM8960_PLL1, reg | div);
668 reg = wm8960_read(codec, WM8960_CLOCK2) & 0x03f;
669 wm8960_write(codec, WM8960_CLOCK2, reg | div);
671 case WM8960_TOCLKSEL:
672 reg = wm8960_read(codec, WM8960_ADDCTL1) & 0x1fd;
673 wm8960_write(codec, WM8960_ADDCTL1, reg | div);
682 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
684 #define WM8960_FORMATS \
685 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
686 SNDRV_PCM_FMTBIT_S24_LE)
688 static struct snd_soc_dai_ops wm8960_dai_ops = {
689 .hw_params = wm8960_hw_params,
690 .digital_mute = wm8960_mute,
691 .set_fmt = wm8960_set_dai_fmt,
692 .set_clkdiv = wm8960_set_dai_clkdiv,
693 .set_pll = wm8960_set_dai_pll,
696 struct snd_soc_dai wm8960_dai = {
699 .stream_name = "Playback",
702 .rates = WM8960_RATES,
703 .formats = WM8960_FORMATS,},
705 .stream_name = "Capture",
708 .rates = WM8960_RATES,
709 .formats = WM8960_FORMATS,},
710 .ops = &wm8960_dai_ops,
711 .symmetric_rates = 1,
713 EXPORT_SYMBOL_GPL(wm8960_dai);
715 static int wm8960_suspend(struct platform_device *pdev, pm_message_t state)
717 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
718 struct snd_soc_codec *codec = socdev->card->codec;
720 wm8960_set_bias_level(codec, SND_SOC_BIAS_OFF);
724 static int wm8960_resume(struct platform_device *pdev)
726 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
727 struct snd_soc_codec *codec = socdev->card->codec;
730 u16 *cache = codec->reg_cache;
732 /* Sync reg_cache with the hardware */
733 for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
734 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
735 data[1] = cache[i] & 0x00ff;
736 codec->hw_write(codec->control_data, data, 2);
739 wm8960_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
740 wm8960_set_bias_level(codec, codec->suspend_bias_level);
744 static struct snd_soc_codec *wm8960_codec;
746 static int wm8960_probe(struct platform_device *pdev)
748 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
749 struct snd_soc_codec *codec;
752 if (wm8960_codec == NULL) {
753 dev_err(&pdev->dev, "Codec device not registered\n");
757 socdev->card->codec = wm8960_codec;
758 codec = wm8960_codec;
761 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
763 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
767 snd_soc_add_controls(codec, wm8960_snd_controls,
768 ARRAY_SIZE(wm8960_snd_controls));
769 wm8960_add_widgets(codec);
770 ret = snd_soc_init_card(socdev);
772 dev_err(codec->dev, "failed to register card: %d\n", ret);
779 snd_soc_free_pcms(socdev);
780 snd_soc_dapm_free(socdev);
785 /* power down chip */
786 static int wm8960_remove(struct platform_device *pdev)
788 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
790 snd_soc_free_pcms(socdev);
791 snd_soc_dapm_free(socdev);
796 struct snd_soc_codec_device soc_codec_dev_wm8960 = {
797 .probe = wm8960_probe,
798 .remove = wm8960_remove,
799 .suspend = wm8960_suspend,
800 .resume = wm8960_resume,
802 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8960);
804 static int wm8960_register(struct wm8960_priv *wm8960)
806 struct wm8960_data *pdata = wm8960->codec.dev->platform_data;
807 struct snd_soc_codec *codec = &wm8960->codec;
812 dev_err(codec->dev, "Another WM8960 is registered\n");
817 dev_warn(codec->dev, "No platform data supplied\n");
819 if (pdata->dres > WM8960_DRES_MAX) {
820 dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
825 mutex_init(&codec->mutex);
826 INIT_LIST_HEAD(&codec->dapm_widgets);
827 INIT_LIST_HEAD(&codec->dapm_paths);
829 codec->private_data = wm8960;
830 codec->name = "WM8960";
831 codec->owner = THIS_MODULE;
832 codec->read = wm8960_read_reg_cache;
833 codec->write = wm8960_write;
834 codec->bias_level = SND_SOC_BIAS_OFF;
835 codec->set_bias_level = wm8960_set_bias_level;
836 codec->dai = &wm8960_dai;
838 codec->reg_cache_size = WM8960_CACHEREGNUM;
839 codec->reg_cache = &wm8960->reg_cache;
841 memcpy(codec->reg_cache, wm8960_reg, sizeof(wm8960_reg));
843 ret = wm8960_reset(codec);
845 dev_err(codec->dev, "Failed to issue reset\n");
849 wm8960_dai.dev = codec->dev;
851 wm8960_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
853 /* Latch the update bits */
854 reg = wm8960_read(codec, WM8960_LINVOL);
855 wm8960_write(codec, WM8960_LINVOL, reg | 0x100);
856 reg = wm8960_read(codec, WM8960_RINVOL);
857 wm8960_write(codec, WM8960_RINVOL, reg | 0x100);
858 reg = wm8960_read(codec, WM8960_LADC);
859 wm8960_write(codec, WM8960_LADC, reg | 0x100);
860 reg = wm8960_read(codec, WM8960_RADC);
861 wm8960_write(codec, WM8960_RADC, reg | 0x100);
862 reg = wm8960_read(codec, WM8960_LDAC);
863 wm8960_write(codec, WM8960_LDAC, reg | 0x100);
864 reg = wm8960_read(codec, WM8960_RDAC);
865 wm8960_write(codec, WM8960_RDAC, reg | 0x100);
866 reg = wm8960_read(codec, WM8960_LOUT1);
867 wm8960_write(codec, WM8960_LOUT1, reg | 0x100);
868 reg = wm8960_read(codec, WM8960_ROUT1);
869 wm8960_write(codec, WM8960_ROUT1, reg | 0x100);
870 reg = wm8960_read(codec, WM8960_LOUT2);
871 wm8960_write(codec, WM8960_LOUT2, reg | 0x100);
872 reg = wm8960_read(codec, WM8960_ROUT2);
873 wm8960_write(codec, WM8960_ROUT2, reg | 0x100);
875 wm8960_codec = codec;
877 ret = snd_soc_register_codec(codec);
879 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
883 ret = snd_soc_register_dai(&wm8960_dai);
885 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
886 snd_soc_unregister_codec(codec);
893 static void wm8960_unregister(struct wm8960_priv *wm8960)
895 wm8960_set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
896 snd_soc_unregister_dai(&wm8960_dai);
897 snd_soc_unregister_codec(&wm8960->codec);
902 static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
903 const struct i2c_device_id *id)
905 struct wm8960_priv *wm8960;
906 struct snd_soc_codec *codec;
908 wm8960 = kzalloc(sizeof(struct wm8960_priv), GFP_KERNEL);
912 codec = &wm8960->codec;
913 codec->hw_write = (hw_write_t)i2c_master_send;
915 i2c_set_clientdata(i2c, wm8960);
916 codec->control_data = i2c;
918 codec->dev = &i2c->dev;
920 return wm8960_register(wm8960);
923 static __devexit int wm8960_i2c_remove(struct i2c_client *client)
925 struct wm8960_priv *wm8960 = i2c_get_clientdata(client);
926 wm8960_unregister(wm8960);
930 static const struct i2c_device_id wm8960_i2c_id[] = {
934 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
936 static struct i2c_driver wm8960_i2c_driver = {
938 .name = "WM8960 I2C Codec",
939 .owner = THIS_MODULE,
941 .probe = wm8960_i2c_probe,
942 .remove = __devexit_p(wm8960_i2c_remove),
943 .id_table = wm8960_i2c_id,
946 static int __init wm8960_modinit(void)
950 ret = i2c_add_driver(&wm8960_i2c_driver);
952 printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
958 module_init(wm8960_modinit);
960 static void __exit wm8960_exit(void)
962 i2c_del_driver(&wm8960_i2c_driver);
964 module_exit(wm8960_exit);
967 MODULE_DESCRIPTION("ASoC WM8960 driver");
968 MODULE_AUTHOR("Liam Girdwood");
969 MODULE_LICENSE("GPL");