2 * wm8750.c -- WM8750 ALSA SoC audio driver
4 * Copyright 2005 Openedhand Ltd.
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.
15 #include <linux/module.h>
16 #include <linux/moduleparam.h>
17 #include <linux/init.h>
18 #include <linux/delay.h>
20 #include <linux/i2c.h>
21 #include <linux/regmap.h>
22 #include <linux/spi/spi.h>
23 #include <linux/slab.h>
24 #include <linux/of_device.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/initval.h>
34 * wm8750 register cache
35 * We can't read the WM8750 register space when we
36 * are using 2 wire for device control, so we cache them instead.
38 static const struct reg_default wm8750_reg_defaults[] = {
84 /* codec private data */
89 #define wm8750_reset(c) snd_soc_write(c, WM8750_RESET, 0)
94 static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
95 static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
96 static const char *wm8750_treble[] = {"8kHz", "4kHz"};
97 static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
98 static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
99 static const char *wm8750_3d_func[] = {"Capture", "Playback"};
100 static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
101 static const char *wm8750_ng_type[] = {"Constant PGA Gain",
103 static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
105 static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
107 static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
109 static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
110 static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
112 static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
113 static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
114 "Mono (Right)", "Digital Mono"};
116 static const struct soc_enum wm8750_enum[] = {
117 SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
118 SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
119 SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
120 SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
121 SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
122 SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
123 SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
124 SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
125 SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
126 SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
127 SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
128 SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
129 SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
130 SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
131 SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
132 SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
133 SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
137 static const struct snd_kcontrol_new wm8750_snd_controls[] = {
139 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
140 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
141 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
143 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
144 WM8750_ROUT1V, 7, 1, 0),
145 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
146 WM8750_ROUT2V, 7, 1, 0),
148 SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
150 SOC_ENUM("Capture Polarity", wm8750_enum[14]),
151 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
152 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
154 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
156 SOC_ENUM("Bass Boost", wm8750_enum[0]),
157 SOC_ENUM("Bass Filter", wm8750_enum[1]),
158 SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
160 SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1),
161 SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
163 SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
164 SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
165 SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
166 SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
167 SOC_ENUM("3D Mode", wm8750_enum[5]),
169 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
170 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
171 SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
172 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
173 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
174 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
175 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
176 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
177 SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
178 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
180 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
181 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
183 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
184 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
186 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
189 /* ADCDAC Bit 0 - ADCHPD */
190 /* ADCDAC Bit 4 - HPOR */
191 /* ADCTL1 Bit 2,3 - DATSEL */
192 /* ADCTL1 Bit 4,5 - DMONOMIX */
193 /* ADCTL1 Bit 6,7 - VSEL */
194 /* ADCTL2 Bit 2 - LRCM */
195 /* ADCTL2 Bit 3 - TRI */
196 /* ADCTL3 Bit 5 - HPFLREN */
197 /* ADCTL3 Bit 6 - VROI */
198 /* ADCTL3 Bit 7,8 - ADCLRM */
199 /* ADCIN Bit 4 - LDCM */
200 /* ADCIN Bit 5 - RDCM */
202 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
204 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
205 WM8750_LOUTM2, 4, 7, 1),
206 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
207 WM8750_ROUTM2, 4, 7, 1),
208 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
209 WM8750_MOUTM2, 4, 7, 1),
211 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
213 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
215 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
218 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
227 static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
228 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
229 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
230 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
231 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
235 static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
236 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
237 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
238 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
239 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
243 static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
244 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
245 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
246 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
247 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
251 static const struct snd_kcontrol_new wm8750_left_line_controls =
252 SOC_DAPM_ENUM("Route", wm8750_enum[8]);
255 static const struct snd_kcontrol_new wm8750_right_line_controls =
256 SOC_DAPM_ENUM("Route", wm8750_enum[9]);
259 static const struct snd_kcontrol_new wm8750_left_pga_controls =
260 SOC_DAPM_ENUM("Route", wm8750_enum[10]);
263 static const struct snd_kcontrol_new wm8750_right_pga_controls =
264 SOC_DAPM_ENUM("Route", wm8750_enum[11]);
267 static const struct snd_kcontrol_new wm8750_out3_controls =
268 SOC_DAPM_ENUM("Route", wm8750_enum[12]);
270 /* Differential Mux */
271 static const struct snd_kcontrol_new wm8750_diffmux_controls =
272 SOC_DAPM_ENUM("Route", wm8750_enum[13]);
275 static const struct snd_kcontrol_new wm8750_monomux_controls =
276 SOC_DAPM_ENUM("Route", wm8750_enum[16]);
278 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
279 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
280 &wm8750_left_mixer_controls[0],
281 ARRAY_SIZE(wm8750_left_mixer_controls)),
282 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
283 &wm8750_right_mixer_controls[0],
284 ARRAY_SIZE(wm8750_right_mixer_controls)),
285 SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
286 &wm8750_mono_mixer_controls[0],
287 ARRAY_SIZE(wm8750_mono_mixer_controls)),
289 SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
290 SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
291 SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
292 SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
293 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
294 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
296 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
297 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
298 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
300 SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
301 &wm8750_left_pga_controls),
302 SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
303 &wm8750_right_pga_controls),
304 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
305 &wm8750_left_line_controls),
306 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
307 &wm8750_right_line_controls),
309 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
310 SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
311 SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
313 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
314 &wm8750_diffmux_controls),
315 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
316 &wm8750_monomux_controls),
317 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
318 &wm8750_monomux_controls),
320 SND_SOC_DAPM_OUTPUT("LOUT1"),
321 SND_SOC_DAPM_OUTPUT("ROUT1"),
322 SND_SOC_DAPM_OUTPUT("LOUT2"),
323 SND_SOC_DAPM_OUTPUT("ROUT2"),
324 SND_SOC_DAPM_OUTPUT("MONO1"),
325 SND_SOC_DAPM_OUTPUT("OUT3"),
326 SND_SOC_DAPM_VMID("VREF"),
328 SND_SOC_DAPM_INPUT("LINPUT1"),
329 SND_SOC_DAPM_INPUT("LINPUT2"),
330 SND_SOC_DAPM_INPUT("LINPUT3"),
331 SND_SOC_DAPM_INPUT("RINPUT1"),
332 SND_SOC_DAPM_INPUT("RINPUT2"),
333 SND_SOC_DAPM_INPUT("RINPUT3"),
336 static const struct snd_soc_dapm_route wm8750_dapm_routes[] = {
338 {"Left Mixer", "Playback Switch", "Left DAC"},
339 {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
340 {"Left Mixer", "Right Playback Switch", "Right DAC"},
341 {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
344 {"Right Mixer", "Left Playback Switch", "Left DAC"},
345 {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
346 {"Right Mixer", "Playback Switch", "Right DAC"},
347 {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
350 {"Left Out 1", NULL, "Left Mixer"},
351 {"LOUT1", NULL, "Left Out 1"},
354 {"Left Out 2", NULL, "Left Mixer"},
355 {"LOUT2", NULL, "Left Out 2"},
358 {"Right Out 1", NULL, "Right Mixer"},
359 {"ROUT1", NULL, "Right Out 1"},
362 {"Right Out 2", NULL, "Right Mixer"},
363 {"ROUT2", NULL, "Right Out 2"},
366 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
367 {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
368 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
369 {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
372 {"Mono Out 1", NULL, "Mono Mixer"},
373 {"MONO1", NULL, "Mono Out 1"},
376 {"Out3 Mux", "VREF", "VREF"},
377 {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
378 {"Out3 Mux", "ROUT1", "Right Mixer"},
379 {"Out3 Mux", "MonoOut", "MONO1"},
380 {"Out 3", NULL, "Out3 Mux"},
381 {"OUT3", NULL, "Out 3"},
384 {"Left Line Mux", "Line 1", "LINPUT1"},
385 {"Left Line Mux", "Line 2", "LINPUT2"},
386 {"Left Line Mux", "Line 3", "LINPUT3"},
387 {"Left Line Mux", "PGA", "Left PGA Mux"},
388 {"Left Line Mux", "Differential", "Differential Mux"},
391 {"Right Line Mux", "Line 1", "RINPUT1"},
392 {"Right Line Mux", "Line 2", "RINPUT2"},
393 {"Right Line Mux", "Line 3", "RINPUT3"},
394 {"Right Line Mux", "PGA", "Right PGA Mux"},
395 {"Right Line Mux", "Differential", "Differential Mux"},
398 {"Left PGA Mux", "Line 1", "LINPUT1"},
399 {"Left PGA Mux", "Line 2", "LINPUT2"},
400 {"Left PGA Mux", "Line 3", "LINPUT3"},
401 {"Left PGA Mux", "Differential", "Differential Mux"},
404 {"Right PGA Mux", "Line 1", "RINPUT1"},
405 {"Right PGA Mux", "Line 2", "RINPUT2"},
406 {"Right PGA Mux", "Line 3", "RINPUT3"},
407 {"Right PGA Mux", "Differential", "Differential Mux"},
409 /* Differential Mux */
410 {"Differential Mux", "Line 1", "LINPUT1"},
411 {"Differential Mux", "Line 1", "RINPUT1"},
412 {"Differential Mux", "Line 2", "LINPUT2"},
413 {"Differential Mux", "Line 2", "RINPUT2"},
416 {"Left ADC Mux", "Stereo", "Left PGA Mux"},
417 {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
418 {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
421 {"Right ADC Mux", "Stereo", "Right PGA Mux"},
422 {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
423 {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
426 {"Left ADC", NULL, "Left ADC Mux"},
427 {"Right ADC", NULL, "Right ADC Mux"},
438 /* codec hifi mclk clock divider coefficients */
439 static const struct _coeff_div coeff_div[] = {
441 {12288000, 8000, 1536, 0x6, 0x0},
442 {11289600, 8000, 1408, 0x16, 0x0},
443 {18432000, 8000, 2304, 0x7, 0x0},
444 {16934400, 8000, 2112, 0x17, 0x0},
445 {12000000, 8000, 1500, 0x6, 0x1},
448 {11289600, 11025, 1024, 0x18, 0x0},
449 {16934400, 11025, 1536, 0x19, 0x0},
450 {12000000, 11025, 1088, 0x19, 0x1},
453 {12288000, 16000, 768, 0xa, 0x0},
454 {18432000, 16000, 1152, 0xb, 0x0},
455 {12000000, 16000, 750, 0xa, 0x1},
458 {11289600, 22050, 512, 0x1a, 0x0},
459 {16934400, 22050, 768, 0x1b, 0x0},
460 {12000000, 22050, 544, 0x1b, 0x1},
463 {12288000, 32000, 384, 0xc, 0x0},
464 {18432000, 32000, 576, 0xd, 0x0},
465 {12000000, 32000, 375, 0xa, 0x1},
468 {11289600, 44100, 256, 0x10, 0x0},
469 {16934400, 44100, 384, 0x11, 0x0},
470 {12000000, 44100, 272, 0x11, 0x1},
473 {12288000, 48000, 256, 0x0, 0x0},
474 {18432000, 48000, 384, 0x1, 0x0},
475 {12000000, 48000, 250, 0x0, 0x1},
478 {11289600, 88200, 128, 0x1e, 0x0},
479 {16934400, 88200, 192, 0x1f, 0x0},
480 {12000000, 88200, 136, 0x1f, 0x1},
483 {12288000, 96000, 128, 0xe, 0x0},
484 {18432000, 96000, 192, 0xf, 0x0},
485 {12000000, 96000, 125, 0xe, 0x1},
488 static inline int get_coeff(int mclk, int rate)
492 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
493 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
497 printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n",
502 static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai,
503 int clk_id, unsigned int freq, int dir)
505 struct snd_soc_codec *codec = codec_dai->codec;
506 struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
514 wm8750->sysclk = freq;
520 static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai,
523 struct snd_soc_codec *codec = codec_dai->codec;
526 /* set master/slave audio interface */
527 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
528 case SND_SOC_DAIFMT_CBM_CFM:
531 case SND_SOC_DAIFMT_CBS_CFS:
537 /* interface format */
538 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
539 case SND_SOC_DAIFMT_I2S:
542 case SND_SOC_DAIFMT_RIGHT_J:
544 case SND_SOC_DAIFMT_LEFT_J:
547 case SND_SOC_DAIFMT_DSP_A:
550 case SND_SOC_DAIFMT_DSP_B:
557 /* clock inversion */
558 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
559 case SND_SOC_DAIFMT_NB_NF:
561 case SND_SOC_DAIFMT_IB_IF:
564 case SND_SOC_DAIFMT_IB_NF:
567 case SND_SOC_DAIFMT_NB_IF:
574 snd_soc_write(codec, WM8750_IFACE, iface);
578 static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
579 struct snd_pcm_hw_params *params,
580 struct snd_soc_dai *dai)
582 struct snd_soc_codec *codec = dai->codec;
583 struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
584 u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3;
585 u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0;
586 int coeff = get_coeff(wm8750->sysclk, params_rate(params));
589 switch (params_width(params)) {
603 /* set iface & srate */
604 snd_soc_write(codec, WM8750_IFACE, iface);
606 snd_soc_write(codec, WM8750_SRATE, srate |
607 (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
612 static int wm8750_mute(struct snd_soc_dai *dai, int mute)
614 struct snd_soc_codec *codec = dai->codec;
615 u16 mute_reg = snd_soc_read(codec, WM8750_ADCDAC) & 0xfff7;
618 snd_soc_write(codec, WM8750_ADCDAC, mute_reg | 0x8);
620 snd_soc_write(codec, WM8750_ADCDAC, mute_reg);
624 static int wm8750_set_bias_level(struct snd_soc_codec *codec,
625 enum snd_soc_bias_level level)
627 u16 pwr_reg = snd_soc_read(codec, WM8750_PWR1) & 0xfe3e;
630 case SND_SOC_BIAS_ON:
631 /* set vmid to 50k and unmute dac */
632 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
634 case SND_SOC_BIAS_PREPARE:
636 case SND_SOC_BIAS_STANDBY:
637 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
638 snd_soc_cache_sync(codec);
641 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
647 /* mute dac and set vmid to 500k, enable VREF */
648 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
650 case SND_SOC_BIAS_OFF:
651 snd_soc_write(codec, WM8750_PWR1, 0x0001);
657 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
658 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
659 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
661 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
662 SNDRV_PCM_FMTBIT_S24_LE)
664 static const struct snd_soc_dai_ops wm8750_dai_ops = {
665 .hw_params = wm8750_pcm_hw_params,
666 .digital_mute = wm8750_mute,
667 .set_fmt = wm8750_set_dai_fmt,
668 .set_sysclk = wm8750_set_dai_sysclk,
671 static struct snd_soc_dai_driver wm8750_dai = {
672 .name = "wm8750-hifi",
674 .stream_name = "Playback",
677 .rates = WM8750_RATES,
678 .formats = WM8750_FORMATS,},
680 .stream_name = "Capture",
683 .rates = WM8750_RATES,
684 .formats = WM8750_FORMATS,},
685 .ops = &wm8750_dai_ops,
688 static int wm8750_probe(struct snd_soc_codec *codec)
692 ret = wm8750_reset(codec);
694 printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
698 /* set the update bits */
699 snd_soc_update_bits(codec, WM8750_LDAC, 0x0100, 0x0100);
700 snd_soc_update_bits(codec, WM8750_RDAC, 0x0100, 0x0100);
701 snd_soc_update_bits(codec, WM8750_LOUT1V, 0x0100, 0x0100);
702 snd_soc_update_bits(codec, WM8750_ROUT1V, 0x0100, 0x0100);
703 snd_soc_update_bits(codec, WM8750_LOUT2V, 0x0100, 0x0100);
704 snd_soc_update_bits(codec, WM8750_ROUT2V, 0x0100, 0x0100);
705 snd_soc_update_bits(codec, WM8750_LINVOL, 0x0100, 0x0100);
706 snd_soc_update_bits(codec, WM8750_RINVOL, 0x0100, 0x0100);
711 static const struct snd_soc_codec_driver soc_codec_dev_wm8750 = {
712 .probe = wm8750_probe,
713 .set_bias_level = wm8750_set_bias_level,
714 .suspend_bias_off = true,
716 .component_driver = {
717 .controls = wm8750_snd_controls,
718 .num_controls = ARRAY_SIZE(wm8750_snd_controls),
719 .dapm_widgets = wm8750_dapm_widgets,
720 .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
721 .dapm_routes = wm8750_dapm_routes,
722 .num_dapm_routes = ARRAY_SIZE(wm8750_dapm_routes),
726 static const struct of_device_id wm8750_of_match[] = {
727 { .compatible = "wlf,wm8750", },
728 { .compatible = "wlf,wm8987", },
731 MODULE_DEVICE_TABLE(of, wm8750_of_match);
733 static const struct regmap_config wm8750_regmap = {
736 .max_register = WM8750_MOUTV,
738 .reg_defaults = wm8750_reg_defaults,
739 .num_reg_defaults = ARRAY_SIZE(wm8750_reg_defaults),
740 .cache_type = REGCACHE_RBTREE,
743 #if defined(CONFIG_SPI_MASTER)
744 static int wm8750_spi_probe(struct spi_device *spi)
746 struct wm8750_priv *wm8750;
747 struct regmap *regmap;
750 wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
755 regmap = devm_regmap_init_spi(spi, &wm8750_regmap);
757 return PTR_ERR(regmap);
759 spi_set_drvdata(spi, wm8750);
761 ret = snd_soc_register_codec(&spi->dev,
762 &soc_codec_dev_wm8750, &wm8750_dai, 1);
766 static int wm8750_spi_remove(struct spi_device *spi)
768 snd_soc_unregister_codec(&spi->dev);
772 static const struct spi_device_id wm8750_spi_ids[] = {
777 MODULE_DEVICE_TABLE(spi, wm8750_spi_ids);
779 static struct spi_driver wm8750_spi_driver = {
782 .of_match_table = wm8750_of_match,
784 .id_table = wm8750_spi_ids,
785 .probe = wm8750_spi_probe,
786 .remove = wm8750_spi_remove,
788 #endif /* CONFIG_SPI_MASTER */
790 #if IS_ENABLED(CONFIG_I2C)
791 static int wm8750_i2c_probe(struct i2c_client *i2c,
792 const struct i2c_device_id *id)
794 struct wm8750_priv *wm8750;
795 struct regmap *regmap;
798 wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
803 i2c_set_clientdata(i2c, wm8750);
805 regmap = devm_regmap_init_i2c(i2c, &wm8750_regmap);
807 return PTR_ERR(regmap);
809 ret = snd_soc_register_codec(&i2c->dev,
810 &soc_codec_dev_wm8750, &wm8750_dai, 1);
814 static int wm8750_i2c_remove(struct i2c_client *client)
816 snd_soc_unregister_codec(&client->dev);
820 static const struct i2c_device_id wm8750_i2c_id[] = {
825 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
827 static struct i2c_driver wm8750_i2c_driver = {
830 .of_match_table = wm8750_of_match,
832 .probe = wm8750_i2c_probe,
833 .remove = wm8750_i2c_remove,
834 .id_table = wm8750_i2c_id,
838 static int __init wm8750_modinit(void)
841 #if IS_ENABLED(CONFIG_I2C)
842 ret = i2c_add_driver(&wm8750_i2c_driver);
844 printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n",
848 #if defined(CONFIG_SPI_MASTER)
849 ret = spi_register_driver(&wm8750_spi_driver);
851 printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
857 module_init(wm8750_modinit);
859 static void __exit wm8750_exit(void)
861 #if IS_ENABLED(CONFIG_I2C)
862 i2c_del_driver(&wm8750_i2c_driver);
864 #if defined(CONFIG_SPI_MASTER)
865 spi_unregister_driver(&wm8750_spi_driver);
868 module_exit(wm8750_exit);
870 MODULE_DESCRIPTION("ASoC WM8750 driver");
871 MODULE_AUTHOR("Liam Girdwood");
872 MODULE_LICENSE("GPL");