2 * wm8750.c -- WM8750 ALSA SoC audio driver
4 * Copyright 2005 Openedhand Ltd.
6 * Author: Richard Purdie <richard@openedhand.com>
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/spi/spi.h>
22 #include <linux/slab.h>
23 #include <linux/of_device.h>
24 #include <sound/core.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/soc.h>
28 #include <sound/initval.h>
33 * wm8750 register cache
34 * We can't read the WM8750 register space when we
35 * are using 2 wire for device control, so we cache them instead.
37 static const u16 wm8750_reg[] = {
38 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
39 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
40 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
41 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
42 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
43 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
44 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
45 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
46 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
47 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
48 0x0079, 0x0079, 0x0079, /* 40 */
51 /* codec private data */
54 enum snd_soc_control_type control_type;
57 #define wm8750_reset(c) snd_soc_write(c, WM8750_RESET, 0)
62 static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
63 static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
64 static const char *wm8750_treble[] = {"8kHz", "4kHz"};
65 static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
66 static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
67 static const char *wm8750_3d_func[] = {"Capture", "Playback"};
68 static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
69 static const char *wm8750_ng_type[] = {"Constant PGA Gain",
71 static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
73 static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
75 static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
77 static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
78 static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
80 static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
81 static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
82 "Mono (Right)", "Digital Mono"};
84 static const struct soc_enum wm8750_enum[] = {
85 SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
86 SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
87 SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
88 SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
89 SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
90 SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
91 SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
92 SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
93 SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
94 SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
95 SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
96 SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
97 SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
98 SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
99 SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
100 SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
101 SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
105 static const struct snd_kcontrol_new wm8750_snd_controls[] = {
107 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
108 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
109 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
111 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
112 WM8750_ROUT1V, 7, 1, 0),
113 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
114 WM8750_ROUT2V, 7, 1, 0),
116 SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
118 SOC_ENUM("Capture Polarity", wm8750_enum[14]),
119 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
120 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
122 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
124 SOC_ENUM("Bass Boost", wm8750_enum[0]),
125 SOC_ENUM("Bass Filter", wm8750_enum[1]),
126 SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
128 SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1),
129 SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
131 SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
132 SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
133 SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
134 SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
135 SOC_ENUM("3D Mode", wm8750_enum[5]),
137 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
138 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
139 SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
140 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
141 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
142 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
143 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
144 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
145 SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
146 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
148 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
149 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
151 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
152 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
154 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
157 /* ADCDAC Bit 0 - ADCHPD */
158 /* ADCDAC Bit 4 - HPOR */
159 /* ADCTL1 Bit 2,3 - DATSEL */
160 /* ADCTL1 Bit 4,5 - DMONOMIX */
161 /* ADCTL1 Bit 6,7 - VSEL */
162 /* ADCTL2 Bit 2 - LRCM */
163 /* ADCTL2 Bit 3 - TRI */
164 /* ADCTL3 Bit 5 - HPFLREN */
165 /* ADCTL3 Bit 6 - VROI */
166 /* ADCTL3 Bit 7,8 - ADCLRM */
167 /* ADCIN Bit 4 - LDCM */
168 /* ADCIN Bit 5 - RDCM */
170 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
172 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
173 WM8750_LOUTM2, 4, 7, 1),
174 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
175 WM8750_ROUTM2, 4, 7, 1),
176 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
177 WM8750_MOUTM2, 4, 7, 1),
179 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
181 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
183 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
186 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
195 static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
196 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
197 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
198 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
199 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
203 static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
204 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
205 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
206 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
207 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
211 static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
212 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
213 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
214 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
215 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
219 static const struct snd_kcontrol_new wm8750_left_line_controls =
220 SOC_DAPM_ENUM("Route", wm8750_enum[8]);
223 static const struct snd_kcontrol_new wm8750_right_line_controls =
224 SOC_DAPM_ENUM("Route", wm8750_enum[9]);
227 static const struct snd_kcontrol_new wm8750_left_pga_controls =
228 SOC_DAPM_ENUM("Route", wm8750_enum[10]);
231 static const struct snd_kcontrol_new wm8750_right_pga_controls =
232 SOC_DAPM_ENUM("Route", wm8750_enum[11]);
235 static const struct snd_kcontrol_new wm8750_out3_controls =
236 SOC_DAPM_ENUM("Route", wm8750_enum[12]);
238 /* Differential Mux */
239 static const struct snd_kcontrol_new wm8750_diffmux_controls =
240 SOC_DAPM_ENUM("Route", wm8750_enum[13]);
243 static const struct snd_kcontrol_new wm8750_monomux_controls =
244 SOC_DAPM_ENUM("Route", wm8750_enum[16]);
246 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
247 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
248 &wm8750_left_mixer_controls[0],
249 ARRAY_SIZE(wm8750_left_mixer_controls)),
250 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
251 &wm8750_right_mixer_controls[0],
252 ARRAY_SIZE(wm8750_right_mixer_controls)),
253 SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
254 &wm8750_mono_mixer_controls[0],
255 ARRAY_SIZE(wm8750_mono_mixer_controls)),
257 SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
258 SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
259 SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
260 SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
261 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
262 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
264 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
265 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
266 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
268 SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
269 &wm8750_left_pga_controls),
270 SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
271 &wm8750_right_pga_controls),
272 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
273 &wm8750_left_line_controls),
274 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
275 &wm8750_right_line_controls),
277 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
278 SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
279 SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
281 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
282 &wm8750_diffmux_controls),
283 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
284 &wm8750_monomux_controls),
285 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
286 &wm8750_monomux_controls),
288 SND_SOC_DAPM_OUTPUT("LOUT1"),
289 SND_SOC_DAPM_OUTPUT("ROUT1"),
290 SND_SOC_DAPM_OUTPUT("LOUT2"),
291 SND_SOC_DAPM_OUTPUT("ROUT2"),
292 SND_SOC_DAPM_OUTPUT("MONO1"),
293 SND_SOC_DAPM_OUTPUT("OUT3"),
294 SND_SOC_DAPM_OUTPUT("VREF"),
296 SND_SOC_DAPM_INPUT("LINPUT1"),
297 SND_SOC_DAPM_INPUT("LINPUT2"),
298 SND_SOC_DAPM_INPUT("LINPUT3"),
299 SND_SOC_DAPM_INPUT("RINPUT1"),
300 SND_SOC_DAPM_INPUT("RINPUT2"),
301 SND_SOC_DAPM_INPUT("RINPUT3"),
304 static const struct snd_soc_dapm_route wm8750_dapm_routes[] = {
306 {"Left Mixer", "Playback Switch", "Left DAC"},
307 {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
308 {"Left Mixer", "Right Playback Switch", "Right DAC"},
309 {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
312 {"Right Mixer", "Left Playback Switch", "Left DAC"},
313 {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
314 {"Right Mixer", "Playback Switch", "Right DAC"},
315 {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
318 {"Left Out 1", NULL, "Left Mixer"},
319 {"LOUT1", NULL, "Left Out 1"},
322 {"Left Out 2", NULL, "Left Mixer"},
323 {"LOUT2", NULL, "Left Out 2"},
326 {"Right Out 1", NULL, "Right Mixer"},
327 {"ROUT1", NULL, "Right Out 1"},
330 {"Right Out 2", NULL, "Right Mixer"},
331 {"ROUT2", NULL, "Right Out 2"},
334 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
335 {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
336 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
337 {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
340 {"Mono Out 1", NULL, "Mono Mixer"},
341 {"MONO1", NULL, "Mono Out 1"},
344 {"Out3 Mux", "VREF", "VREF"},
345 {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
346 {"Out3 Mux", "ROUT1", "Right Mixer"},
347 {"Out3 Mux", "MonoOut", "MONO1"},
348 {"Out 3", NULL, "Out3 Mux"},
349 {"OUT3", NULL, "Out 3"},
352 {"Left Line Mux", "Line 1", "LINPUT1"},
353 {"Left Line Mux", "Line 2", "LINPUT2"},
354 {"Left Line Mux", "Line 3", "LINPUT3"},
355 {"Left Line Mux", "PGA", "Left PGA Mux"},
356 {"Left Line Mux", "Differential", "Differential Mux"},
359 {"Right Line Mux", "Line 1", "RINPUT1"},
360 {"Right Line Mux", "Line 2", "RINPUT2"},
361 {"Right Line Mux", "Line 3", "RINPUT3"},
362 {"Right Line Mux", "PGA", "Right PGA Mux"},
363 {"Right Line Mux", "Differential", "Differential Mux"},
366 {"Left PGA Mux", "Line 1", "LINPUT1"},
367 {"Left PGA Mux", "Line 2", "LINPUT2"},
368 {"Left PGA Mux", "Line 3", "LINPUT3"},
369 {"Left PGA Mux", "Differential", "Differential Mux"},
372 {"Right PGA Mux", "Line 1", "RINPUT1"},
373 {"Right PGA Mux", "Line 2", "RINPUT2"},
374 {"Right PGA Mux", "Line 3", "RINPUT3"},
375 {"Right PGA Mux", "Differential", "Differential Mux"},
377 /* Differential Mux */
378 {"Differential Mux", "Line 1", "LINPUT1"},
379 {"Differential Mux", "Line 1", "RINPUT1"},
380 {"Differential Mux", "Line 2", "LINPUT2"},
381 {"Differential Mux", "Line 2", "RINPUT2"},
384 {"Left ADC Mux", "Stereo", "Left PGA Mux"},
385 {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
386 {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
389 {"Right ADC Mux", "Stereo", "Right PGA Mux"},
390 {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
391 {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
394 {"Left ADC", NULL, "Left ADC Mux"},
395 {"Right ADC", NULL, "Right ADC Mux"},
406 /* codec hifi mclk clock divider coefficients */
407 static const struct _coeff_div coeff_div[] = {
409 {12288000, 8000, 1536, 0x6, 0x0},
410 {11289600, 8000, 1408, 0x16, 0x0},
411 {18432000, 8000, 2304, 0x7, 0x0},
412 {16934400, 8000, 2112, 0x17, 0x0},
413 {12000000, 8000, 1500, 0x6, 0x1},
416 {11289600, 11025, 1024, 0x18, 0x0},
417 {16934400, 11025, 1536, 0x19, 0x0},
418 {12000000, 11025, 1088, 0x19, 0x1},
421 {12288000, 16000, 768, 0xa, 0x0},
422 {18432000, 16000, 1152, 0xb, 0x0},
423 {12000000, 16000, 750, 0xa, 0x1},
426 {11289600, 22050, 512, 0x1a, 0x0},
427 {16934400, 22050, 768, 0x1b, 0x0},
428 {12000000, 22050, 544, 0x1b, 0x1},
431 {12288000, 32000, 384, 0xc, 0x0},
432 {18432000, 32000, 576, 0xd, 0x0},
433 {12000000, 32000, 375, 0xa, 0x1},
436 {11289600, 44100, 256, 0x10, 0x0},
437 {16934400, 44100, 384, 0x11, 0x0},
438 {12000000, 44100, 272, 0x11, 0x1},
441 {12288000, 48000, 256, 0x0, 0x0},
442 {18432000, 48000, 384, 0x1, 0x0},
443 {12000000, 48000, 250, 0x0, 0x1},
446 {11289600, 88200, 128, 0x1e, 0x0},
447 {16934400, 88200, 192, 0x1f, 0x0},
448 {12000000, 88200, 136, 0x1f, 0x1},
451 {12288000, 96000, 128, 0xe, 0x0},
452 {18432000, 96000, 192, 0xf, 0x0},
453 {12000000, 96000, 125, 0xe, 0x1},
456 static inline int get_coeff(int mclk, int rate)
460 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
461 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
465 printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n",
470 static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai,
471 int clk_id, unsigned int freq, int dir)
473 struct snd_soc_codec *codec = codec_dai->codec;
474 struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
482 wm8750->sysclk = freq;
488 static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai,
491 struct snd_soc_codec *codec = codec_dai->codec;
494 /* set master/slave audio interface */
495 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
496 case SND_SOC_DAIFMT_CBM_CFM:
499 case SND_SOC_DAIFMT_CBS_CFS:
505 /* interface format */
506 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
507 case SND_SOC_DAIFMT_I2S:
510 case SND_SOC_DAIFMT_RIGHT_J:
512 case SND_SOC_DAIFMT_LEFT_J:
515 case SND_SOC_DAIFMT_DSP_A:
518 case SND_SOC_DAIFMT_DSP_B:
525 /* clock inversion */
526 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
527 case SND_SOC_DAIFMT_NB_NF:
529 case SND_SOC_DAIFMT_IB_IF:
532 case SND_SOC_DAIFMT_IB_NF:
535 case SND_SOC_DAIFMT_NB_IF:
542 snd_soc_write(codec, WM8750_IFACE, iface);
546 static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
547 struct snd_pcm_hw_params *params,
548 struct snd_soc_dai *dai)
550 struct snd_soc_codec *codec = dai->codec;
551 struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
552 u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3;
553 u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0;
554 int coeff = get_coeff(wm8750->sysclk, params_rate(params));
557 switch (params_format(params)) {
558 case SNDRV_PCM_FORMAT_S16_LE:
560 case SNDRV_PCM_FORMAT_S20_3LE:
563 case SNDRV_PCM_FORMAT_S24_LE:
566 case SNDRV_PCM_FORMAT_S32_LE:
571 /* set iface & srate */
572 snd_soc_write(codec, WM8750_IFACE, iface);
574 snd_soc_write(codec, WM8750_SRATE, srate |
575 (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
580 static int wm8750_mute(struct snd_soc_dai *dai, int mute)
582 struct snd_soc_codec *codec = dai->codec;
583 u16 mute_reg = snd_soc_read(codec, WM8750_ADCDAC) & 0xfff7;
586 snd_soc_write(codec, WM8750_ADCDAC, mute_reg | 0x8);
588 snd_soc_write(codec, WM8750_ADCDAC, mute_reg);
592 static int wm8750_set_bias_level(struct snd_soc_codec *codec,
593 enum snd_soc_bias_level level)
595 u16 pwr_reg = snd_soc_read(codec, WM8750_PWR1) & 0xfe3e;
598 case SND_SOC_BIAS_ON:
599 /* set vmid to 50k and unmute dac */
600 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
602 case SND_SOC_BIAS_PREPARE:
604 case SND_SOC_BIAS_STANDBY:
605 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
606 snd_soc_cache_sync(codec);
609 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
615 /* mute dac and set vmid to 500k, enable VREF */
616 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
618 case SND_SOC_BIAS_OFF:
619 snd_soc_write(codec, WM8750_PWR1, 0x0001);
622 codec->dapm.bias_level = level;
626 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
627 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
628 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
630 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
631 SNDRV_PCM_FMTBIT_S24_LE)
633 static const struct snd_soc_dai_ops wm8750_dai_ops = {
634 .hw_params = wm8750_pcm_hw_params,
635 .digital_mute = wm8750_mute,
636 .set_fmt = wm8750_set_dai_fmt,
637 .set_sysclk = wm8750_set_dai_sysclk,
640 static struct snd_soc_dai_driver wm8750_dai = {
641 .name = "wm8750-hifi",
643 .stream_name = "Playback",
646 .rates = WM8750_RATES,
647 .formats = WM8750_FORMATS,},
649 .stream_name = "Capture",
652 .rates = WM8750_RATES,
653 .formats = WM8750_FORMATS,},
654 .ops = &wm8750_dai_ops,
657 static int wm8750_suspend(struct snd_soc_codec *codec)
659 wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
663 static int wm8750_resume(struct snd_soc_codec *codec)
665 wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
669 static int wm8750_probe(struct snd_soc_codec *codec)
671 struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
674 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8750->control_type);
676 printk(KERN_ERR "wm8750: failed to set cache I/O: %d\n", ret);
680 ret = wm8750_reset(codec);
682 printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
686 /* charge output caps */
687 wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
689 /* set the update bits */
690 snd_soc_update_bits(codec, WM8750_LDAC, 0x0100, 0x0100);
691 snd_soc_update_bits(codec, WM8750_RDAC, 0x0100, 0x0100);
692 snd_soc_update_bits(codec, WM8750_LOUT1V, 0x0100, 0x0100);
693 snd_soc_update_bits(codec, WM8750_ROUT1V, 0x0100, 0x0100);
694 snd_soc_update_bits(codec, WM8750_LOUT2V, 0x0100, 0x0100);
695 snd_soc_update_bits(codec, WM8750_ROUT2V, 0x0100, 0x0100);
696 snd_soc_update_bits(codec, WM8750_LINVOL, 0x0100, 0x0100);
697 snd_soc_update_bits(codec, WM8750_RINVOL, 0x0100, 0x0100);
702 static int wm8750_remove(struct snd_soc_codec *codec)
704 wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
708 static struct snd_soc_codec_driver soc_codec_dev_wm8750 = {
709 .probe = wm8750_probe,
710 .remove = wm8750_remove,
711 .suspend = wm8750_suspend,
712 .resume = wm8750_resume,
713 .set_bias_level = wm8750_set_bias_level,
714 .reg_cache_size = ARRAY_SIZE(wm8750_reg),
715 .reg_word_size = sizeof(u16),
716 .reg_cache_default = wm8750_reg,
718 .controls = wm8750_snd_controls,
719 .num_controls = ARRAY_SIZE(wm8750_snd_controls),
720 .dapm_widgets = wm8750_dapm_widgets,
721 .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
722 .dapm_routes = wm8750_dapm_routes,
723 .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 #if defined(CONFIG_SPI_MASTER)
734 static int __devinit wm8750_spi_probe(struct spi_device *spi)
736 struct wm8750_priv *wm8750;
739 wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
744 wm8750->control_type = SND_SOC_SPI;
745 spi_set_drvdata(spi, wm8750);
747 ret = snd_soc_register_codec(&spi->dev,
748 &soc_codec_dev_wm8750, &wm8750_dai, 1);
752 static int __devexit wm8750_spi_remove(struct spi_device *spi)
754 snd_soc_unregister_codec(&spi->dev);
758 static const struct spi_device_id wm8750_spi_ids[] = {
763 MODULE_DEVICE_TABLE(spi, wm8750_spi_ids);
765 static struct spi_driver wm8750_spi_driver = {
768 .owner = THIS_MODULE,
769 .of_match_table = wm8750_of_match,
771 .id_table = wm8750_spi_ids,
772 .probe = wm8750_spi_probe,
773 .remove = __devexit_p(wm8750_spi_remove),
775 #endif /* CONFIG_SPI_MASTER */
777 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
778 static __devinit int wm8750_i2c_probe(struct i2c_client *i2c,
779 const struct i2c_device_id *id)
781 struct wm8750_priv *wm8750;
784 wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
789 i2c_set_clientdata(i2c, wm8750);
790 wm8750->control_type = SND_SOC_I2C;
792 ret = snd_soc_register_codec(&i2c->dev,
793 &soc_codec_dev_wm8750, &wm8750_dai, 1);
797 static __devexit int wm8750_i2c_remove(struct i2c_client *client)
799 snd_soc_unregister_codec(&client->dev);
803 static const struct i2c_device_id wm8750_i2c_id[] = {
808 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
810 static struct i2c_driver wm8750_i2c_driver = {
813 .owner = THIS_MODULE,
814 .of_match_table = wm8750_of_match,
816 .probe = wm8750_i2c_probe,
817 .remove = __devexit_p(wm8750_i2c_remove),
818 .id_table = wm8750_i2c_id,
822 static int __init wm8750_modinit(void)
825 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
826 ret = i2c_add_driver(&wm8750_i2c_driver);
828 printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n",
832 #if defined(CONFIG_SPI_MASTER)
833 ret = spi_register_driver(&wm8750_spi_driver);
835 printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
841 module_init(wm8750_modinit);
843 static void __exit wm8750_exit(void)
845 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
846 i2c_del_driver(&wm8750_i2c_driver);
848 #if defined(CONFIG_SPI_MASTER)
849 spi_unregister_driver(&wm8750_spi_driver);
852 module_exit(wm8750_exit);
854 MODULE_DESCRIPTION("ASoC WM8750 driver");
855 MODULE_AUTHOR("Liam Girdwood");
856 MODULE_LICENSE("GPL");