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/platform_device.h>
22 #include <linux/spi/spi.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/soc-dapm.h>
28 #include <sound/initval.h>
32 /* codec private data */
38 * wm8750 register cache
39 * We can't read the WM8750 register space when we
40 * are using 2 wire for device control, so we cache them instead.
42 static const u16 wm8750_reg[] = {
43 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
44 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
45 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
46 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
47 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
48 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
49 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
50 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
51 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
52 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
53 0x0079, 0x0079, 0x0079, /* 40 */
56 #define wm8750_reset(c) snd_soc_write(c, WM8750_RESET, 0)
61 static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
62 static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
63 static const char *wm8750_treble[] = {"8kHz", "4kHz"};
64 static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
65 static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
66 static const char *wm8750_3d_func[] = {"Capture", "Playback"};
67 static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
68 static const char *wm8750_ng_type[] = {"Constant PGA Gain",
70 static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
72 static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
74 static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
76 static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
77 static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
79 static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
80 static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
81 "Mono (Right)", "Digital Mono"};
83 static const struct soc_enum wm8750_enum[] = {
84 SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
85 SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
86 SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
87 SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
88 SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
89 SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
90 SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
91 SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
92 SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
93 SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
94 SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
95 SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
96 SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
97 SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
98 SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
99 SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
100 SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
104 static const struct snd_kcontrol_new wm8750_snd_controls[] = {
106 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
107 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
108 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
110 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
111 WM8750_ROUT1V, 7, 1, 0),
112 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
113 WM8750_ROUT2V, 7, 1, 0),
115 SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
117 SOC_ENUM("Capture Polarity", wm8750_enum[14]),
118 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
119 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
121 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
123 SOC_ENUM("Bass Boost", wm8750_enum[0]),
124 SOC_ENUM("Bass Filter", wm8750_enum[1]),
125 SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
127 SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1),
128 SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
130 SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
131 SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
132 SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
133 SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
134 SOC_ENUM("3D Mode", wm8750_enum[5]),
136 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
137 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
138 SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
139 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
140 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
141 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
142 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
143 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
144 SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
145 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
147 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
148 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
150 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
151 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
153 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
156 /* ADCDAC Bit 0 - ADCHPD */
157 /* ADCDAC Bit 4 - HPOR */
158 /* ADCTL1 Bit 2,3 - DATSEL */
159 /* ADCTL1 Bit 4,5 - DMONOMIX */
160 /* ADCTL1 Bit 6,7 - VSEL */
161 /* ADCTL2 Bit 2 - LRCM */
162 /* ADCTL2 Bit 3 - TRI */
163 /* ADCTL3 Bit 5 - HPFLREN */
164 /* ADCTL3 Bit 6 - VROI */
165 /* ADCTL3 Bit 7,8 - ADCLRM */
166 /* ADCIN Bit 4 - LDCM */
167 /* ADCIN Bit 5 - RDCM */
169 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
171 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
172 WM8750_LOUTM2, 4, 7, 1),
173 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
174 WM8750_ROUTM2, 4, 7, 1),
175 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
176 WM8750_MOUTM2, 4, 7, 1),
178 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
180 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
182 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
185 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
194 static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
195 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
196 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
197 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
198 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
202 static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
203 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
204 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
205 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
206 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
210 static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
211 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
212 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
213 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
214 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
218 static const struct snd_kcontrol_new wm8750_left_line_controls =
219 SOC_DAPM_ENUM("Route", wm8750_enum[8]);
222 static const struct snd_kcontrol_new wm8750_right_line_controls =
223 SOC_DAPM_ENUM("Route", wm8750_enum[9]);
226 static const struct snd_kcontrol_new wm8750_left_pga_controls =
227 SOC_DAPM_ENUM("Route", wm8750_enum[10]);
230 static const struct snd_kcontrol_new wm8750_right_pga_controls =
231 SOC_DAPM_ENUM("Route", wm8750_enum[11]);
234 static const struct snd_kcontrol_new wm8750_out3_controls =
235 SOC_DAPM_ENUM("Route", wm8750_enum[12]);
237 /* Differential Mux */
238 static const struct snd_kcontrol_new wm8750_diffmux_controls =
239 SOC_DAPM_ENUM("Route", wm8750_enum[13]);
242 static const struct snd_kcontrol_new wm8750_monomux_controls =
243 SOC_DAPM_ENUM("Route", wm8750_enum[16]);
245 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
246 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
247 &wm8750_left_mixer_controls[0],
248 ARRAY_SIZE(wm8750_left_mixer_controls)),
249 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
250 &wm8750_right_mixer_controls[0],
251 ARRAY_SIZE(wm8750_right_mixer_controls)),
252 SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
253 &wm8750_mono_mixer_controls[0],
254 ARRAY_SIZE(wm8750_mono_mixer_controls)),
256 SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
257 SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
258 SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
259 SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
260 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
261 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
263 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
264 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
265 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
267 SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
268 &wm8750_left_pga_controls),
269 SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
270 &wm8750_right_pga_controls),
271 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
272 &wm8750_left_line_controls),
273 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
274 &wm8750_right_line_controls),
276 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
277 SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
278 SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
280 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
281 &wm8750_diffmux_controls),
282 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
283 &wm8750_monomux_controls),
284 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
285 &wm8750_monomux_controls),
287 SND_SOC_DAPM_OUTPUT("LOUT1"),
288 SND_SOC_DAPM_OUTPUT("ROUT1"),
289 SND_SOC_DAPM_OUTPUT("LOUT2"),
290 SND_SOC_DAPM_OUTPUT("ROUT2"),
291 SND_SOC_DAPM_OUTPUT("MONO1"),
292 SND_SOC_DAPM_OUTPUT("OUT3"),
293 SND_SOC_DAPM_OUTPUT("VREF"),
295 SND_SOC_DAPM_INPUT("LINPUT1"),
296 SND_SOC_DAPM_INPUT("LINPUT2"),
297 SND_SOC_DAPM_INPUT("LINPUT3"),
298 SND_SOC_DAPM_INPUT("RINPUT1"),
299 SND_SOC_DAPM_INPUT("RINPUT2"),
300 SND_SOC_DAPM_INPUT("RINPUT3"),
303 static const struct snd_soc_dapm_route audio_map[] = {
305 {"Left Mixer", "Playback Switch", "Left DAC"},
306 {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
307 {"Left Mixer", "Right Playback Switch", "Right DAC"},
308 {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
311 {"Right Mixer", "Left Playback Switch", "Left DAC"},
312 {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
313 {"Right Mixer", "Playback Switch", "Right DAC"},
314 {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
317 {"Left Out 1", NULL, "Left Mixer"},
318 {"LOUT1", NULL, "Left Out 1"},
321 {"Left Out 2", NULL, "Left Mixer"},
322 {"LOUT2", NULL, "Left Out 2"},
325 {"Right Out 1", NULL, "Right Mixer"},
326 {"ROUT1", NULL, "Right Out 1"},
329 {"Right Out 2", NULL, "Right Mixer"},
330 {"ROUT2", NULL, "Right Out 2"},
333 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
334 {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
335 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
336 {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
339 {"Mono Out 1", NULL, "Mono Mixer"},
340 {"MONO1", NULL, "Mono Out 1"},
343 {"Out3 Mux", "VREF", "VREF"},
344 {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
345 {"Out3 Mux", "ROUT1", "Right Mixer"},
346 {"Out3 Mux", "MonoOut", "MONO1"},
347 {"Out 3", NULL, "Out3 Mux"},
348 {"OUT3", NULL, "Out 3"},
351 {"Left Line Mux", "Line 1", "LINPUT1"},
352 {"Left Line Mux", "Line 2", "LINPUT2"},
353 {"Left Line Mux", "Line 3", "LINPUT3"},
354 {"Left Line Mux", "PGA", "Left PGA Mux"},
355 {"Left Line Mux", "Differential", "Differential Mux"},
358 {"Right Line Mux", "Line 1", "RINPUT1"},
359 {"Right Line Mux", "Line 2", "RINPUT2"},
360 {"Right Line Mux", "Line 3", "RINPUT3"},
361 {"Right Line Mux", "PGA", "Right PGA Mux"},
362 {"Right Line Mux", "Differential", "Differential Mux"},
365 {"Left PGA Mux", "Line 1", "LINPUT1"},
366 {"Left PGA Mux", "Line 2", "LINPUT2"},
367 {"Left PGA Mux", "Line 3", "LINPUT3"},
368 {"Left PGA Mux", "Differential", "Differential Mux"},
371 {"Right PGA Mux", "Line 1", "RINPUT1"},
372 {"Right PGA Mux", "Line 2", "RINPUT2"},
373 {"Right PGA Mux", "Line 3", "RINPUT3"},
374 {"Right PGA Mux", "Differential", "Differential Mux"},
376 /* Differential Mux */
377 {"Differential Mux", "Line 1", "LINPUT1"},
378 {"Differential Mux", "Line 1", "RINPUT1"},
379 {"Differential Mux", "Line 2", "LINPUT2"},
380 {"Differential Mux", "Line 2", "RINPUT2"},
383 {"Left ADC Mux", "Stereo", "Left PGA Mux"},
384 {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
385 {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
388 {"Right ADC Mux", "Stereo", "Right PGA Mux"},
389 {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
390 {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
393 {"Left ADC", NULL, "Left ADC Mux"},
394 {"Right ADC", NULL, "Right ADC Mux"},
397 static int wm8750_add_widgets(struct snd_soc_codec *codec)
399 snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
400 ARRAY_SIZE(wm8750_dapm_widgets));
402 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
415 /* codec hifi mclk clock divider coefficients */
416 static const struct _coeff_div coeff_div[] = {
418 {12288000, 8000, 1536, 0x6, 0x0},
419 {11289600, 8000, 1408, 0x16, 0x0},
420 {18432000, 8000, 2304, 0x7, 0x0},
421 {16934400, 8000, 2112, 0x17, 0x0},
422 {12000000, 8000, 1500, 0x6, 0x1},
425 {11289600, 11025, 1024, 0x18, 0x0},
426 {16934400, 11025, 1536, 0x19, 0x0},
427 {12000000, 11025, 1088, 0x19, 0x1},
430 {12288000, 16000, 768, 0xa, 0x0},
431 {18432000, 16000, 1152, 0xb, 0x0},
432 {12000000, 16000, 750, 0xa, 0x1},
435 {11289600, 22050, 512, 0x1a, 0x0},
436 {16934400, 22050, 768, 0x1b, 0x0},
437 {12000000, 22050, 544, 0x1b, 0x1},
440 {12288000, 32000, 384, 0xc, 0x0},
441 {18432000, 32000, 576, 0xd, 0x0},
442 {12000000, 32000, 375, 0xa, 0x1},
445 {11289600, 44100, 256, 0x10, 0x0},
446 {16934400, 44100, 384, 0x11, 0x0},
447 {12000000, 44100, 272, 0x11, 0x1},
450 {12288000, 48000, 256, 0x0, 0x0},
451 {18432000, 48000, 384, 0x1, 0x0},
452 {12000000, 48000, 250, 0x0, 0x1},
455 {11289600, 88200, 128, 0x1e, 0x0},
456 {16934400, 88200, 192, 0x1f, 0x0},
457 {12000000, 88200, 136, 0x1f, 0x1},
460 {12288000, 96000, 128, 0xe, 0x0},
461 {18432000, 96000, 192, 0xf, 0x0},
462 {12000000, 96000, 125, 0xe, 0x1},
465 static inline int get_coeff(int mclk, int rate)
469 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
470 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
474 printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n",
479 static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai,
480 int clk_id, unsigned int freq, int dir)
482 struct snd_soc_codec *codec = codec_dai->codec;
483 struct wm8750_priv *wm8750 = codec->private_data;
491 wm8750->sysclk = freq;
497 static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai,
500 struct snd_soc_codec *codec = codec_dai->codec;
503 /* set master/slave audio interface */
504 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
505 case SND_SOC_DAIFMT_CBM_CFM:
508 case SND_SOC_DAIFMT_CBS_CFS:
514 /* interface format */
515 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
516 case SND_SOC_DAIFMT_I2S:
519 case SND_SOC_DAIFMT_RIGHT_J:
521 case SND_SOC_DAIFMT_LEFT_J:
524 case SND_SOC_DAIFMT_DSP_A:
527 case SND_SOC_DAIFMT_DSP_B:
534 /* clock inversion */
535 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
536 case SND_SOC_DAIFMT_NB_NF:
538 case SND_SOC_DAIFMT_IB_IF:
541 case SND_SOC_DAIFMT_IB_NF:
544 case SND_SOC_DAIFMT_NB_IF:
551 snd_soc_write(codec, WM8750_IFACE, iface);
555 static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
556 struct snd_pcm_hw_params *params,
557 struct snd_soc_dai *dai)
559 struct snd_soc_pcm_runtime *rtd = substream->private_data;
560 struct snd_soc_device *socdev = rtd->socdev;
561 struct snd_soc_codec *codec = socdev->card->codec;
562 struct wm8750_priv *wm8750 = codec->private_data;
563 u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3;
564 u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0;
565 int coeff = get_coeff(wm8750->sysclk, params_rate(params));
568 switch (params_format(params)) {
569 case SNDRV_PCM_FORMAT_S16_LE:
571 case SNDRV_PCM_FORMAT_S20_3LE:
574 case SNDRV_PCM_FORMAT_S24_LE:
577 case SNDRV_PCM_FORMAT_S32_LE:
582 /* set iface & srate */
583 snd_soc_write(codec, WM8750_IFACE, iface);
585 snd_soc_write(codec, WM8750_SRATE, srate |
586 (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
591 static int wm8750_mute(struct snd_soc_dai *dai, int mute)
593 struct snd_soc_codec *codec = dai->codec;
594 u16 mute_reg = snd_soc_read(codec, WM8750_ADCDAC) & 0xfff7;
597 snd_soc_write(codec, WM8750_ADCDAC, mute_reg | 0x8);
599 snd_soc_write(codec, WM8750_ADCDAC, mute_reg);
603 static int wm8750_set_bias_level(struct snd_soc_codec *codec,
604 enum snd_soc_bias_level level)
606 u16 pwr_reg = snd_soc_read(codec, WM8750_PWR1) & 0xfe3e;
609 case SND_SOC_BIAS_ON:
610 /* set vmid to 50k and unmute dac */
611 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
613 case SND_SOC_BIAS_PREPARE:
615 case SND_SOC_BIAS_STANDBY:
616 if (codec->bias_level == SND_SOC_BIAS_OFF) {
618 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
624 /* mute dac and set vmid to 500k, enable VREF */
625 snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
627 case SND_SOC_BIAS_OFF:
628 snd_soc_write(codec, WM8750_PWR1, 0x0001);
631 codec->bias_level = level;
635 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
636 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
637 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
639 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
640 SNDRV_PCM_FMTBIT_S24_LE)
642 static struct snd_soc_dai_ops wm8750_dai_ops = {
643 .hw_params = wm8750_pcm_hw_params,
644 .digital_mute = wm8750_mute,
645 .set_fmt = wm8750_set_dai_fmt,
646 .set_sysclk = wm8750_set_dai_sysclk,
649 struct snd_soc_dai wm8750_dai = {
652 .stream_name = "Playback",
655 .rates = WM8750_RATES,
656 .formats = WM8750_FORMATS,},
658 .stream_name = "Capture",
661 .rates = WM8750_RATES,
662 .formats = WM8750_FORMATS,},
663 .ops = &wm8750_dai_ops,
665 EXPORT_SYMBOL_GPL(wm8750_dai);
667 static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
669 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
670 struct snd_soc_codec *codec = socdev->card->codec;
672 wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
676 static int wm8750_resume(struct platform_device *pdev)
678 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
679 struct snd_soc_codec *codec = socdev->card->codec;
682 u16 *cache = codec->reg_cache;
684 /* Sync reg_cache with the hardware */
685 for (i = 0; i < ARRAY_SIZE(wm8750_reg); i++) {
686 if (i == WM8750_RESET)
688 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
689 data[1] = cache[i] & 0x00ff;
690 codec->hw_write(codec->control_data, data, 2);
693 wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
699 * initialise the WM8750 driver
700 * register the mixer and dsp interfaces with the kernel
702 static int wm8750_init(struct snd_soc_device *socdev,
703 enum snd_soc_control_type control)
705 struct snd_soc_codec *codec = socdev->card->codec;
708 codec->name = "WM8750";
709 codec->owner = THIS_MODULE;
710 codec->set_bias_level = wm8750_set_bias_level;
711 codec->dai = &wm8750_dai;
713 codec->reg_cache_size = ARRAY_SIZE(wm8750_reg);
714 codec->reg_cache = kmemdup(wm8750_reg, sizeof(wm8750_reg), GFP_KERNEL);
715 if (codec->reg_cache == NULL)
718 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
720 printk(KERN_ERR "wm8750: failed to set cache I/O: %d\n", ret);
724 ret = wm8750_reset(codec);
726 printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
731 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
733 printk(KERN_ERR "wm8750: failed to create pcms\n");
737 /* charge output caps */
738 wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
740 /* set the update bits */
741 reg = snd_soc_read(codec, WM8750_LDAC);
742 snd_soc_write(codec, WM8750_LDAC, reg | 0x0100);
743 reg = snd_soc_read(codec, WM8750_RDAC);
744 snd_soc_write(codec, WM8750_RDAC, reg | 0x0100);
745 reg = snd_soc_read(codec, WM8750_LOUT1V);
746 snd_soc_write(codec, WM8750_LOUT1V, reg | 0x0100);
747 reg = snd_soc_read(codec, WM8750_ROUT1V);
748 snd_soc_write(codec, WM8750_ROUT1V, reg | 0x0100);
749 reg = snd_soc_read(codec, WM8750_LOUT2V);
750 snd_soc_write(codec, WM8750_LOUT2V, reg | 0x0100);
751 reg = snd_soc_read(codec, WM8750_ROUT2V);
752 snd_soc_write(codec, WM8750_ROUT2V, reg | 0x0100);
753 reg = snd_soc_read(codec, WM8750_LINVOL);
754 snd_soc_write(codec, WM8750_LINVOL, reg | 0x0100);
755 reg = snd_soc_read(codec, WM8750_RINVOL);
756 snd_soc_write(codec, WM8750_RINVOL, reg | 0x0100);
758 snd_soc_add_controls(codec, wm8750_snd_controls,
759 ARRAY_SIZE(wm8750_snd_controls));
760 wm8750_add_widgets(codec);
764 kfree(codec->reg_cache);
768 /* If the i2c layer weren't so broken, we could pass this kind of data
770 static struct snd_soc_device *wm8750_socdev;
772 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
775 * WM8750 2 wire address is determined by GPIO5
776 * state during powerup.
781 static int wm8750_i2c_probe(struct i2c_client *i2c,
782 const struct i2c_device_id *id)
784 struct snd_soc_device *socdev = wm8750_socdev;
785 struct snd_soc_codec *codec = socdev->card->codec;
788 i2c_set_clientdata(i2c, codec);
789 codec->control_data = i2c;
791 ret = wm8750_init(socdev, SND_SOC_I2C);
793 pr_err("failed to initialise WM8750\n");
798 static int wm8750_i2c_remove(struct i2c_client *client)
800 struct snd_soc_codec *codec = i2c_get_clientdata(client);
801 kfree(codec->reg_cache);
805 static const struct i2c_device_id wm8750_i2c_id[] = {
809 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
811 static struct i2c_driver wm8750_i2c_driver = {
813 .name = "WM8750 I2C Codec",
814 .owner = THIS_MODULE,
816 .probe = wm8750_i2c_probe,
817 .remove = wm8750_i2c_remove,
818 .id_table = wm8750_i2c_id,
821 static int wm8750_add_i2c_device(struct platform_device *pdev,
822 const struct wm8750_setup_data *setup)
824 struct i2c_board_info info;
825 struct i2c_adapter *adapter;
826 struct i2c_client *client;
829 ret = i2c_add_driver(&wm8750_i2c_driver);
831 dev_err(&pdev->dev, "can't add i2c driver\n");
835 memset(&info, 0, sizeof(struct i2c_board_info));
836 info.addr = setup->i2c_address;
837 strlcpy(info.type, "wm8750", I2C_NAME_SIZE);
839 adapter = i2c_get_adapter(setup->i2c_bus);
841 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
846 client = i2c_new_device(adapter, &info);
847 i2c_put_adapter(adapter);
849 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
850 (unsigned int)info.addr);
857 i2c_del_driver(&wm8750_i2c_driver);
862 #if defined(CONFIG_SPI_MASTER)
863 static int __devinit wm8750_spi_probe(struct spi_device *spi)
865 struct snd_soc_device *socdev = wm8750_socdev;
866 struct snd_soc_codec *codec = socdev->card->codec;
869 codec->control_data = spi;
871 ret = wm8750_init(socdev, SND_SOC_SPI);
873 dev_err(&spi->dev, "failed to initialise WM8750\n");
878 static int __devexit wm8750_spi_remove(struct spi_device *spi)
883 static struct spi_driver wm8750_spi_driver = {
886 .bus = &spi_bus_type,
887 .owner = THIS_MODULE,
889 .probe = wm8750_spi_probe,
890 .remove = __devexit_p(wm8750_spi_remove),
894 static int wm8750_probe(struct platform_device *pdev)
896 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
897 struct wm8750_setup_data *setup = socdev->codec_data;
898 struct snd_soc_codec *codec;
899 struct wm8750_priv *wm8750;
902 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
906 wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
907 if (wm8750 == NULL) {
912 codec->private_data = wm8750;
913 socdev->card->codec = codec;
914 mutex_init(&codec->mutex);
915 INIT_LIST_HEAD(&codec->dapm_widgets);
916 INIT_LIST_HEAD(&codec->dapm_paths);
917 wm8750_socdev = socdev;
921 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
922 if (setup->i2c_address) {
923 ret = wm8750_add_i2c_device(pdev, setup);
926 #if defined(CONFIG_SPI_MASTER)
928 ret = spi_register_driver(&wm8750_spi_driver);
930 printk(KERN_ERR "can't add spi driver");
935 kfree(codec->private_data);
941 /* power down chip */
942 static int wm8750_remove(struct platform_device *pdev)
944 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
945 struct snd_soc_codec *codec = socdev->card->codec;
947 if (codec->control_data)
948 wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
949 snd_soc_free_pcms(socdev);
950 snd_soc_dapm_free(socdev);
951 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
952 i2c_unregister_device(codec->control_data);
953 i2c_del_driver(&wm8750_i2c_driver);
955 #if defined(CONFIG_SPI_MASTER)
956 spi_unregister_driver(&wm8750_spi_driver);
958 kfree(codec->private_data);
964 struct snd_soc_codec_device soc_codec_dev_wm8750 = {
965 .probe = wm8750_probe,
966 .remove = wm8750_remove,
967 .suspend = wm8750_suspend,
968 .resume = wm8750_resume,
970 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8750);
972 static int __init wm8750_modinit(void)
974 return snd_soc_register_dai(&wm8750_dai);
976 module_init(wm8750_modinit);
978 static void __exit wm8750_exit(void)
980 snd_soc_unregister_dai(&wm8750_dai);
982 module_exit(wm8750_exit);
984 MODULE_DESCRIPTION("ASoC WM8750 driver");
985 MODULE_AUTHOR("Liam Girdwood");
986 MODULE_LICENSE("GPL");