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 <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/soc-dapm.h>
27 #include <sound/initval.h>
31 #define AUDIO_NAME "WM8750"
32 #define WM8750_VERSION "0.12"
34 /* codec private data */
40 * wm8750 register cache
41 * We can't read the WM8750 register space when we
42 * are using 2 wire for device control, so we cache them instead.
44 static const u16 wm8750_reg
[] = {
45 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
46 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
47 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
48 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
49 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
50 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
51 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
52 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
53 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
54 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
55 0x0079, 0x0079, 0x0079, /* 40 */
59 * read wm8750 register cache
61 static inline unsigned int wm8750_read_reg_cache(struct snd_soc_codec
*codec
,
64 u16
*cache
= codec
->reg_cache
;
65 if (reg
> WM8750_CACHE_REGNUM
)
71 * write wm8750 register cache
73 static inline void wm8750_write_reg_cache(struct snd_soc_codec
*codec
,
74 unsigned int reg
, unsigned int value
)
76 u16
*cache
= codec
->reg_cache
;
77 if (reg
> WM8750_CACHE_REGNUM
)
82 static int wm8750_write(struct snd_soc_codec
*codec
, unsigned int reg
,
88 * D15..D9 WM8753 register offset
89 * D8...D0 register data
91 data
[0] = (reg
<< 1) | ((value
>> 8) & 0x0001);
92 data
[1] = value
& 0x00ff;
94 wm8750_write_reg_cache(codec
, reg
, value
);
95 if (codec
->hw_write(codec
->control_data
, data
, 2) == 2)
101 #define wm8750_reset(c) wm8750_write(c, WM8750_RESET, 0)
106 static const char *wm8750_bass
[] = {"Linear Control", "Adaptive Boost"};
107 static const char *wm8750_bass_filter
[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
108 static const char *wm8750_treble
[] = {"8kHz", "4kHz"};
109 static const char *wm8750_3d_lc
[] = {"200Hz", "500Hz"};
110 static const char *wm8750_3d_uc
[] = {"2.2kHz", "1.5kHz"};
111 static const char *wm8750_3d_func
[] = {"Capture", "Playback"};
112 static const char *wm8750_alc_func
[] = {"Off", "Right", "Left", "Stereo"};
113 static const char *wm8750_ng_type
[] = {"Constant PGA Gain",
115 static const char *wm8750_line_mux
[] = {"Line 1", "Line 2", "Line 3", "PGA",
117 static const char *wm8750_pga_sel
[] = {"Line 1", "Line 2", "Line 3",
119 static const char *wm8750_out3
[] = {"VREF", "ROUT1 + Vol", "MonoOut",
121 static const char *wm8750_diff_sel
[] = {"Line 1", "Line 2"};
122 static const char *wm8750_adcpol
[] = {"Normal", "L Invert", "R Invert",
124 static const char *wm8750_deemph
[] = {"None", "32Khz", "44.1Khz", "48Khz"};
125 static const char *wm8750_mono_mux
[] = {"Stereo", "Mono (Left)",
126 "Mono (Right)", "Digital Mono"};
128 static const struct soc_enum wm8750_enum
[] = {
129 SOC_ENUM_SINGLE(WM8750_BASS
, 7, 2, wm8750_bass
),
130 SOC_ENUM_SINGLE(WM8750_BASS
, 6, 2, wm8750_bass_filter
),
131 SOC_ENUM_SINGLE(WM8750_TREBLE
, 6, 2, wm8750_treble
),
132 SOC_ENUM_SINGLE(WM8750_3D
, 5, 2, wm8750_3d_lc
),
133 SOC_ENUM_SINGLE(WM8750_3D
, 6, 2, wm8750_3d_uc
),
134 SOC_ENUM_SINGLE(WM8750_3D
, 7, 2, wm8750_3d_func
),
135 SOC_ENUM_SINGLE(WM8750_ALC1
, 7, 4, wm8750_alc_func
),
136 SOC_ENUM_SINGLE(WM8750_NGATE
, 1, 2, wm8750_ng_type
),
137 SOC_ENUM_SINGLE(WM8750_LOUTM1
, 0, 5, wm8750_line_mux
),
138 SOC_ENUM_SINGLE(WM8750_ROUTM1
, 0, 5, wm8750_line_mux
),
139 SOC_ENUM_SINGLE(WM8750_LADCIN
, 6, 4, wm8750_pga_sel
), /* 10 */
140 SOC_ENUM_SINGLE(WM8750_RADCIN
, 6, 4, wm8750_pga_sel
),
141 SOC_ENUM_SINGLE(WM8750_ADCTL2
, 7, 4, wm8750_out3
),
142 SOC_ENUM_SINGLE(WM8750_ADCIN
, 8, 2, wm8750_diff_sel
),
143 SOC_ENUM_SINGLE(WM8750_ADCDAC
, 5, 4, wm8750_adcpol
),
144 SOC_ENUM_SINGLE(WM8750_ADCDAC
, 1, 4, wm8750_deemph
),
145 SOC_ENUM_SINGLE(WM8750_ADCIN
, 6, 4, wm8750_mono_mux
), /* 16 */
149 static const struct snd_kcontrol_new wm8750_snd_controls
[] = {
151 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL
, WM8750_RINVOL
, 0, 63, 0),
152 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL
, WM8750_RINVOL
, 6, 1, 0),
153 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL
, WM8750_RINVOL
, 7, 1, 1),
155 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V
,
156 WM8750_ROUT1V
, 7, 1, 0),
157 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V
,
158 WM8750_ROUT2V
, 7, 1, 0),
160 SOC_ENUM("Playback De-emphasis", wm8750_enum
[15]),
162 SOC_ENUM("Capture Polarity", wm8750_enum
[14]),
163 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC
, 7, 1, 0),
164 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC
, 8, 1, 0),
166 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC
, WM8750_RDAC
, 0, 255, 0),
168 SOC_ENUM("Bass Boost", wm8750_enum
[0]),
169 SOC_ENUM("Bass Filter", wm8750_enum
[1]),
170 SOC_SINGLE("Bass Volume", WM8750_BASS
, 0, 15, 1),
172 SOC_SINGLE("Treble Volume", WM8750_TREBLE
, 0, 15, 1),
173 SOC_ENUM("Treble Cut-off", wm8750_enum
[2]),
175 SOC_SINGLE("3D Switch", WM8750_3D
, 0, 1, 0),
176 SOC_SINGLE("3D Volume", WM8750_3D
, 1, 15, 0),
177 SOC_ENUM("3D Lower Cut-off", wm8750_enum
[3]),
178 SOC_ENUM("3D Upper Cut-off", wm8750_enum
[4]),
179 SOC_ENUM("3D Mode", wm8750_enum
[5]),
181 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1
, 0, 7, 0),
182 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1
, 4, 7, 0),
183 SOC_ENUM("ALC Capture Function", wm8750_enum
[6]),
184 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2
, 7, 1, 0),
185 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2
, 0, 15, 0),
186 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3
, 4, 15, 0),
187 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3
, 0, 15, 0),
188 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE
, 3, 31, 0),
189 SOC_ENUM("ALC Capture NG Type", wm8750_enum
[4]),
190 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE
, 0, 1, 0),
192 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC
, 0, 255, 0),
193 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC
, 0, 255, 0),
195 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1
, 0, 1, 0),
196 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1
, 1, 1, 0),
198 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2
, 4, 1, 0),
201 /* ADCDAC Bit 0 - ADCHPD */
202 /* ADCDAC Bit 4 - HPOR */
203 /* ADCTL1 Bit 2,3 - DATSEL */
204 /* ADCTL1 Bit 4,5 - DMONOMIX */
205 /* ADCTL1 Bit 6,7 - VSEL */
206 /* ADCTL2 Bit 2 - LRCM */
207 /* ADCTL2 Bit 3 - TRI */
208 /* ADCTL3 Bit 5 - HPFLREN */
209 /* ADCTL3 Bit 6 - VROI */
210 /* ADCTL3 Bit 7,8 - ADCLRM */
211 /* ADCIN Bit 4 - LDCM */
212 /* ADCIN Bit 5 - RDCM */
214 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN
, WM8750_RADCIN
, 4, 3, 0),
216 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1
,
217 WM8750_LOUTM2
, 4, 7, 1),
218 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1
,
219 WM8750_ROUTM2
, 4, 7, 1),
220 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1
,
221 WM8750_MOUTM2
, 4, 7, 1),
223 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV
, 7, 1, 0),
225 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V
, WM8750_ROUT1V
,
227 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V
, WM8750_ROUT2V
,
230 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV
, 0, 127, 0),
234 /* add non dapm controls */
235 static int wm8750_add_controls(struct snd_soc_codec
*codec
)
239 for (i
= 0; i
< ARRAY_SIZE(wm8750_snd_controls
); i
++) {
240 err
= snd_ctl_add(codec
->card
,
241 snd_soc_cnew(&wm8750_snd_controls
[i
],
254 static const struct snd_kcontrol_new wm8750_left_mixer_controls
[] = {
255 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1
, 8, 1, 0),
256 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1
, 7, 1, 0),
257 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2
, 8, 1, 0),
258 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2
, 7, 1, 0),
262 static const struct snd_kcontrol_new wm8750_right_mixer_controls
[] = {
263 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1
, 8, 1, 0),
264 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1
, 7, 1, 0),
265 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2
, 8, 1, 0),
266 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2
, 7, 1, 0),
270 static const struct snd_kcontrol_new wm8750_mono_mixer_controls
[] = {
271 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1
, 8, 1, 0),
272 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1
, 7, 1, 0),
273 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2
, 8, 1, 0),
274 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2
, 7, 1, 0),
278 static const struct snd_kcontrol_new wm8750_left_line_controls
=
279 SOC_DAPM_ENUM("Route", wm8750_enum
[8]);
282 static const struct snd_kcontrol_new wm8750_right_line_controls
=
283 SOC_DAPM_ENUM("Route", wm8750_enum
[9]);
286 static const struct snd_kcontrol_new wm8750_left_pga_controls
=
287 SOC_DAPM_ENUM("Route", wm8750_enum
[10]);
290 static const struct snd_kcontrol_new wm8750_right_pga_controls
=
291 SOC_DAPM_ENUM("Route", wm8750_enum
[11]);
294 static const struct snd_kcontrol_new wm8750_out3_controls
=
295 SOC_DAPM_ENUM("Route", wm8750_enum
[12]);
297 /* Differential Mux */
298 static const struct snd_kcontrol_new wm8750_diffmux_controls
=
299 SOC_DAPM_ENUM("Route", wm8750_enum
[13]);
302 static const struct snd_kcontrol_new wm8750_monomux_controls
=
303 SOC_DAPM_ENUM("Route", wm8750_enum
[16]);
305 static const struct snd_soc_dapm_widget wm8750_dapm_widgets
[] = {
306 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM
, 0, 0,
307 &wm8750_left_mixer_controls
[0],
308 ARRAY_SIZE(wm8750_left_mixer_controls
)),
309 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM
, 0, 0,
310 &wm8750_right_mixer_controls
[0],
311 ARRAY_SIZE(wm8750_right_mixer_controls
)),
312 SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2
, 2, 0,
313 &wm8750_mono_mixer_controls
[0],
314 ARRAY_SIZE(wm8750_mono_mixer_controls
)),
316 SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2
, 3, 0, NULL
, 0),
317 SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2
, 4, 0, NULL
, 0),
318 SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2
, 5, 0, NULL
, 0),
319 SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2
, 6, 0, NULL
, 0),
320 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2
, 7, 0),
321 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2
, 8, 0),
323 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1
, 1, 0),
324 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1
, 2, 0),
325 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1
, 3, 0),
327 SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1
, 5, 0,
328 &wm8750_left_pga_controls
),
329 SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1
, 4, 0,
330 &wm8750_right_pga_controls
),
331 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM
, 0, 0,
332 &wm8750_left_line_controls
),
333 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM
, 0, 0,
334 &wm8750_right_line_controls
),
336 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM
, 0, 0, &wm8750_out3_controls
),
337 SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2
, 1, 0, NULL
, 0),
338 SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2
, 2, 0, NULL
, 0),
340 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM
, 0, 0,
341 &wm8750_diffmux_controls
),
342 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM
, 0, 0,
343 &wm8750_monomux_controls
),
344 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM
, 0, 0,
345 &wm8750_monomux_controls
),
347 SND_SOC_DAPM_OUTPUT("LOUT1"),
348 SND_SOC_DAPM_OUTPUT("ROUT1"),
349 SND_SOC_DAPM_OUTPUT("LOUT2"),
350 SND_SOC_DAPM_OUTPUT("ROUT2"),
351 SND_SOC_DAPM_OUTPUT("MONO1"),
352 SND_SOC_DAPM_OUTPUT("OUT3"),
353 SND_SOC_DAPM_OUTPUT("VREF"),
355 SND_SOC_DAPM_INPUT("LINPUT1"),
356 SND_SOC_DAPM_INPUT("LINPUT2"),
357 SND_SOC_DAPM_INPUT("LINPUT3"),
358 SND_SOC_DAPM_INPUT("RINPUT1"),
359 SND_SOC_DAPM_INPUT("RINPUT2"),
360 SND_SOC_DAPM_INPUT("RINPUT3"),
363 static const struct snd_soc_dapm_route audio_map
[] = {
365 {"Left Mixer", "Playback Switch", "Left DAC"},
366 {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
367 {"Left Mixer", "Right Playback Switch", "Right DAC"},
368 {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
371 {"Right Mixer", "Left Playback Switch", "Left DAC"},
372 {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
373 {"Right Mixer", "Playback Switch", "Right DAC"},
374 {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
377 {"Left Out 1", NULL
, "Left Mixer"},
378 {"LOUT1", NULL
, "Left Out 1"},
381 {"Left Out 2", NULL
, "Left Mixer"},
382 {"LOUT2", NULL
, "Left Out 2"},
385 {"Right Out 1", NULL
, "Right Mixer"},
386 {"ROUT1", NULL
, "Right Out 1"},
389 {"Right Out 2", NULL
, "Right Mixer"},
390 {"ROUT2", NULL
, "Right Out 2"},
393 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
394 {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
395 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
396 {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
399 {"Mono Out 1", NULL
, "Mono Mixer"},
400 {"MONO1", NULL
, "Mono Out 1"},
403 {"Out3 Mux", "VREF", "VREF"},
404 {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
405 {"Out3 Mux", "ROUT1", "Right Mixer"},
406 {"Out3 Mux", "MonoOut", "MONO1"},
407 {"Out 3", NULL
, "Out3 Mux"},
408 {"OUT3", NULL
, "Out 3"},
411 {"Left Line Mux", "Line 1", "LINPUT1"},
412 {"Left Line Mux", "Line 2", "LINPUT2"},
413 {"Left Line Mux", "Line 3", "LINPUT3"},
414 {"Left Line Mux", "PGA", "Left PGA Mux"},
415 {"Left Line Mux", "Differential", "Differential Mux"},
418 {"Right Line Mux", "Line 1", "RINPUT1"},
419 {"Right Line Mux", "Line 2", "RINPUT2"},
420 {"Right Line Mux", "Line 3", "RINPUT3"},
421 {"Right Line Mux", "PGA", "Right PGA Mux"},
422 {"Right Line Mux", "Differential", "Differential Mux"},
425 {"Left PGA Mux", "Line 1", "LINPUT1"},
426 {"Left PGA Mux", "Line 2", "LINPUT2"},
427 {"Left PGA Mux", "Line 3", "LINPUT3"},
428 {"Left PGA Mux", "Differential", "Differential Mux"},
431 {"Right PGA Mux", "Line 1", "RINPUT1"},
432 {"Right PGA Mux", "Line 2", "RINPUT2"},
433 {"Right PGA Mux", "Line 3", "RINPUT3"},
434 {"Right PGA Mux", "Differential", "Differential Mux"},
436 /* Differential Mux */
437 {"Differential Mux", "Line 1", "LINPUT1"},
438 {"Differential Mux", "Line 1", "RINPUT1"},
439 {"Differential Mux", "Line 2", "LINPUT2"},
440 {"Differential Mux", "Line 2", "RINPUT2"},
443 {"Left ADC Mux", "Stereo", "Left PGA Mux"},
444 {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
445 {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
448 {"Right ADC Mux", "Stereo", "Right PGA Mux"},
449 {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
450 {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
453 {"Left ADC", NULL
, "Left ADC Mux"},
454 {"Right ADC", NULL
, "Right ADC Mux"},
457 static int wm8750_add_widgets(struct snd_soc_codec
*codec
)
459 snd_soc_dapm_new_controls(codec
, wm8750_dapm_widgets
,
460 ARRAY_SIZE(wm8750_dapm_widgets
));
462 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
464 snd_soc_dapm_new_widgets(codec
);
476 /* codec hifi mclk clock divider coefficients */
477 static const struct _coeff_div coeff_div
[] = {
479 {12288000, 8000, 1536, 0x6, 0x0},
480 {11289600, 8000, 1408, 0x16, 0x0},
481 {18432000, 8000, 2304, 0x7, 0x0},
482 {16934400, 8000, 2112, 0x17, 0x0},
483 {12000000, 8000, 1500, 0x6, 0x1},
486 {11289600, 11025, 1024, 0x18, 0x0},
487 {16934400, 11025, 1536, 0x19, 0x0},
488 {12000000, 11025, 1088, 0x19, 0x1},
491 {12288000, 16000, 768, 0xa, 0x0},
492 {18432000, 16000, 1152, 0xb, 0x0},
493 {12000000, 16000, 750, 0xa, 0x1},
496 {11289600, 22050, 512, 0x1a, 0x0},
497 {16934400, 22050, 768, 0x1b, 0x0},
498 {12000000, 22050, 544, 0x1b, 0x1},
501 {12288000, 32000, 384, 0xc, 0x0},
502 {18432000, 32000, 576, 0xd, 0x0},
503 {12000000, 32000, 375, 0xa, 0x1},
506 {11289600, 44100, 256, 0x10, 0x0},
507 {16934400, 44100, 384, 0x11, 0x0},
508 {12000000, 44100, 272, 0x11, 0x1},
511 {12288000, 48000, 256, 0x0, 0x0},
512 {18432000, 48000, 384, 0x1, 0x0},
513 {12000000, 48000, 250, 0x0, 0x1},
516 {11289600, 88200, 128, 0x1e, 0x0},
517 {16934400, 88200, 192, 0x1f, 0x0},
518 {12000000, 88200, 136, 0x1f, 0x1},
521 {12288000, 96000, 128, 0xe, 0x0},
522 {18432000, 96000, 192, 0xf, 0x0},
523 {12000000, 96000, 125, 0xe, 0x1},
526 static inline int get_coeff(int mclk
, int rate
)
530 for (i
= 0; i
< ARRAY_SIZE(coeff_div
); i
++) {
531 if (coeff_div
[i
].rate
== rate
&& coeff_div
[i
].mclk
== mclk
)
535 printk(KERN_ERR
"wm8750: could not get coeff for mclk %d @ rate %d\n",
540 static int wm8750_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
541 int clk_id
, unsigned int freq
, int dir
)
543 struct snd_soc_codec
*codec
= codec_dai
->codec
;
544 struct wm8750_priv
*wm8750
= codec
->private_data
;
552 wm8750
->sysclk
= freq
;
558 static int wm8750_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
561 struct snd_soc_codec
*codec
= codec_dai
->codec
;
564 /* set master/slave audio interface */
565 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
566 case SND_SOC_DAIFMT_CBM_CFM
:
569 case SND_SOC_DAIFMT_CBS_CFS
:
575 /* interface format */
576 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
577 case SND_SOC_DAIFMT_I2S
:
580 case SND_SOC_DAIFMT_RIGHT_J
:
582 case SND_SOC_DAIFMT_LEFT_J
:
585 case SND_SOC_DAIFMT_DSP_A
:
588 case SND_SOC_DAIFMT_DSP_B
:
595 /* clock inversion */
596 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
597 case SND_SOC_DAIFMT_NB_NF
:
599 case SND_SOC_DAIFMT_IB_IF
:
602 case SND_SOC_DAIFMT_IB_NF
:
605 case SND_SOC_DAIFMT_NB_IF
:
612 wm8750_write(codec
, WM8750_IFACE
, iface
);
616 static int wm8750_pcm_hw_params(struct snd_pcm_substream
*substream
,
617 struct snd_pcm_hw_params
*params
)
619 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
620 struct snd_soc_device
*socdev
= rtd
->socdev
;
621 struct snd_soc_codec
*codec
= socdev
->codec
;
622 struct wm8750_priv
*wm8750
= codec
->private_data
;
623 u16 iface
= wm8750_read_reg_cache(codec
, WM8750_IFACE
) & 0x1f3;
624 u16 srate
= wm8750_read_reg_cache(codec
, WM8750_SRATE
) & 0x1c0;
625 int coeff
= get_coeff(wm8750
->sysclk
, params_rate(params
));
628 switch (params_format(params
)) {
629 case SNDRV_PCM_FORMAT_S16_LE
:
631 case SNDRV_PCM_FORMAT_S20_3LE
:
634 case SNDRV_PCM_FORMAT_S24_LE
:
637 case SNDRV_PCM_FORMAT_S32_LE
:
642 /* set iface & srate */
643 wm8750_write(codec
, WM8750_IFACE
, iface
);
645 wm8750_write(codec
, WM8750_SRATE
, srate
|
646 (coeff_div
[coeff
].sr
<< 1) | coeff_div
[coeff
].usb
);
651 static int wm8750_mute(struct snd_soc_dai
*dai
, int mute
)
653 struct snd_soc_codec
*codec
= dai
->codec
;
654 u16 mute_reg
= wm8750_read_reg_cache(codec
, WM8750_ADCDAC
) & 0xfff7;
657 wm8750_write(codec
, WM8750_ADCDAC
, mute_reg
| 0x8);
659 wm8750_write(codec
, WM8750_ADCDAC
, mute_reg
);
663 static int wm8750_set_bias_level(struct snd_soc_codec
*codec
,
664 enum snd_soc_bias_level level
)
666 u16 pwr_reg
= wm8750_read_reg_cache(codec
, WM8750_PWR1
) & 0xfe3e;
669 case SND_SOC_BIAS_ON
:
670 /* set vmid to 50k and unmute dac */
671 wm8750_write(codec
, WM8750_PWR1
, pwr_reg
| 0x00c0);
673 case SND_SOC_BIAS_PREPARE
:
674 /* set vmid to 5k for quick power up */
675 wm8750_write(codec
, WM8750_PWR1
, pwr_reg
| 0x01c1);
677 case SND_SOC_BIAS_STANDBY
:
678 /* mute dac and set vmid to 500k, enable VREF */
679 wm8750_write(codec
, WM8750_PWR1
, pwr_reg
| 0x0141);
681 case SND_SOC_BIAS_OFF
:
682 wm8750_write(codec
, WM8750_PWR1
, 0x0001);
685 codec
->bias_level
= level
;
689 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
690 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
691 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
693 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
694 SNDRV_PCM_FMTBIT_S24_LE)
696 struct snd_soc_dai wm8750_dai
= {
699 .stream_name
= "Playback",
702 .rates
= WM8750_RATES
,
703 .formats
= WM8750_FORMATS
,},
705 .stream_name
= "Capture",
708 .rates
= WM8750_RATES
,
709 .formats
= WM8750_FORMATS
,},
711 .hw_params
= wm8750_pcm_hw_params
,
714 .digital_mute
= wm8750_mute
,
715 .set_fmt
= wm8750_set_dai_fmt
,
716 .set_sysclk
= wm8750_set_dai_sysclk
,
719 EXPORT_SYMBOL_GPL(wm8750_dai
);
721 static void wm8750_work(struct work_struct
*work
)
723 struct snd_soc_codec
*codec
=
724 container_of(work
, struct snd_soc_codec
, delayed_work
.work
);
725 wm8750_set_bias_level(codec
, codec
->bias_level
);
728 static int wm8750_suspend(struct platform_device
*pdev
, pm_message_t state
)
730 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
731 struct snd_soc_codec
*codec
= socdev
->codec
;
733 wm8750_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
737 static int wm8750_resume(struct platform_device
*pdev
)
739 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
740 struct snd_soc_codec
*codec
= socdev
->codec
;
743 u16
*cache
= codec
->reg_cache
;
745 /* Sync reg_cache with the hardware */
746 for (i
= 0; i
< ARRAY_SIZE(wm8750_reg
); i
++) {
747 if (i
== WM8750_RESET
)
749 data
[0] = (i
<< 1) | ((cache
[i
] >> 8) & 0x0001);
750 data
[1] = cache
[i
] & 0x00ff;
751 codec
->hw_write(codec
->control_data
, data
, 2);
754 wm8750_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
756 /* charge wm8750 caps */
757 if (codec
->suspend_bias_level
== SND_SOC_BIAS_ON
) {
758 wm8750_set_bias_level(codec
, SND_SOC_BIAS_PREPARE
);
759 codec
->bias_level
= SND_SOC_BIAS_ON
;
760 schedule_delayed_work(&codec
->delayed_work
,
761 msecs_to_jiffies(1000));
768 * initialise the WM8750 driver
769 * register the mixer and dsp interfaces with the kernel
771 static int wm8750_init(struct snd_soc_device
*socdev
)
773 struct snd_soc_codec
*codec
= socdev
->codec
;
776 codec
->name
= "WM8750";
777 codec
->owner
= THIS_MODULE
;
778 codec
->read
= wm8750_read_reg_cache
;
779 codec
->write
= wm8750_write
;
780 codec
->set_bias_level
= wm8750_set_bias_level
;
781 codec
->dai
= &wm8750_dai
;
783 codec
->reg_cache_size
= ARRAY_SIZE(wm8750_reg
);
784 codec
->reg_cache
= kmemdup(wm8750_reg
, sizeof(wm8750_reg
), GFP_KERNEL
);
785 if (codec
->reg_cache
== NULL
)
791 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
793 printk(KERN_ERR
"wm8750: failed to create pcms\n");
797 /* charge output caps */
798 wm8750_set_bias_level(codec
, SND_SOC_BIAS_PREPARE
);
799 codec
->bias_level
= SND_SOC_BIAS_STANDBY
;
800 schedule_delayed_work(&codec
->delayed_work
, msecs_to_jiffies(1000));
802 /* set the update bits */
803 reg
= wm8750_read_reg_cache(codec
, WM8750_LDAC
);
804 wm8750_write(codec
, WM8750_LDAC
, reg
| 0x0100);
805 reg
= wm8750_read_reg_cache(codec
, WM8750_RDAC
);
806 wm8750_write(codec
, WM8750_RDAC
, reg
| 0x0100);
807 reg
= wm8750_read_reg_cache(codec
, WM8750_LOUT1V
);
808 wm8750_write(codec
, WM8750_LOUT1V
, reg
| 0x0100);
809 reg
= wm8750_read_reg_cache(codec
, WM8750_ROUT1V
);
810 wm8750_write(codec
, WM8750_ROUT1V
, reg
| 0x0100);
811 reg
= wm8750_read_reg_cache(codec
, WM8750_LOUT2V
);
812 wm8750_write(codec
, WM8750_LOUT2V
, reg
| 0x0100);
813 reg
= wm8750_read_reg_cache(codec
, WM8750_ROUT2V
);
814 wm8750_write(codec
, WM8750_ROUT2V
, reg
| 0x0100);
815 reg
= wm8750_read_reg_cache(codec
, WM8750_LINVOL
);
816 wm8750_write(codec
, WM8750_LINVOL
, reg
| 0x0100);
817 reg
= wm8750_read_reg_cache(codec
, WM8750_RINVOL
);
818 wm8750_write(codec
, WM8750_RINVOL
, reg
| 0x0100);
820 wm8750_add_controls(codec
);
821 wm8750_add_widgets(codec
);
822 ret
= snd_soc_register_card(socdev
);
824 printk(KERN_ERR
"wm8750: failed to register card\n");
830 snd_soc_free_pcms(socdev
);
831 snd_soc_dapm_free(socdev
);
833 kfree(codec
->reg_cache
);
837 /* If the i2c layer weren't so broken, we could pass this kind of data
839 static struct snd_soc_device
*wm8750_socdev
;
841 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
844 * WM8731 2 wire address is determined by GPIO5
845 * state during powerup.
849 static unsigned short normal_i2c
[] = { 0, I2C_CLIENT_END
};
851 /* Magic definition of all other variables and things */
854 static struct i2c_driver wm8750_i2c_driver
;
855 static struct i2c_client client_template
;
857 static int wm8750_codec_probe(struct i2c_adapter
*adap
, int addr
, int kind
)
859 struct snd_soc_device
*socdev
= wm8750_socdev
;
860 struct wm8750_setup_data
*setup
= socdev
->codec_data
;
861 struct snd_soc_codec
*codec
= socdev
->codec
;
862 struct i2c_client
*i2c
;
865 if (addr
!= setup
->i2c_address
)
868 client_template
.adapter
= adap
;
869 client_template
.addr
= addr
;
871 i2c
= kmemdup(&client_template
, sizeof(client_template
), GFP_KERNEL
);
875 i2c_set_clientdata(i2c
, codec
);
876 codec
->control_data
= i2c
;
878 ret
= i2c_attach_client(i2c
);
880 pr_err("failed to attach codec at addr %x\n", addr
);
884 ret
= wm8750_init(socdev
);
886 pr_err("failed to initialise WM8750\n");
896 static int wm8750_i2c_detach(struct i2c_client
*client
)
898 struct snd_soc_codec
*codec
= i2c_get_clientdata(client
);
899 i2c_detach_client(client
);
900 kfree(codec
->reg_cache
);
905 static int wm8750_i2c_attach(struct i2c_adapter
*adap
)
907 return i2c_probe(adap
, &addr_data
, wm8750_codec_probe
);
910 /* corgi i2c codec control layer */
911 static struct i2c_driver wm8750_i2c_driver
= {
913 .name
= "WM8750 I2C Codec",
914 .owner
= THIS_MODULE
,
916 .id
= I2C_DRIVERID_WM8750
,
917 .attach_adapter
= wm8750_i2c_attach
,
918 .detach_client
= wm8750_i2c_detach
,
922 static struct i2c_client client_template
= {
924 .driver
= &wm8750_i2c_driver
,
928 static int wm8750_probe(struct platform_device
*pdev
)
930 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
931 struct wm8750_setup_data
*setup
= socdev
->codec_data
;
932 struct snd_soc_codec
*codec
;
933 struct wm8750_priv
*wm8750
;
936 pr_info("WM8750 Audio Codec %s", WM8750_VERSION
);
937 codec
= kzalloc(sizeof(struct snd_soc_codec
), GFP_KERNEL
);
941 wm8750
= kzalloc(sizeof(struct wm8750_priv
), GFP_KERNEL
);
942 if (wm8750
== NULL
) {
947 codec
->private_data
= wm8750
;
948 socdev
->codec
= codec
;
949 mutex_init(&codec
->mutex
);
950 INIT_LIST_HEAD(&codec
->dapm_widgets
);
951 INIT_LIST_HEAD(&codec
->dapm_paths
);
952 wm8750_socdev
= socdev
;
953 INIT_DELAYED_WORK(&codec
->delayed_work
, wm8750_work
);
955 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
956 if (setup
->i2c_address
) {
957 normal_i2c
[0] = setup
->i2c_address
;
958 codec
->hw_write
= (hw_write_t
)i2c_master_send
;
959 ret
= i2c_add_driver(&wm8750_i2c_driver
);
961 printk(KERN_ERR
"can't add i2c driver");
964 /* Add other interfaces here */
968 kfree(codec
->private_data
);
975 * This function forces any delayed work to be queued and run.
977 static int run_delayed_work(struct delayed_work
*dwork
)
981 /* cancel any work waiting to be queued. */
982 ret
= cancel_delayed_work(dwork
);
984 /* if there was any work waiting then we run it now and
985 * wait for it's completion */
987 schedule_delayed_work(dwork
, 0);
988 flush_scheduled_work();
993 /* power down chip */
994 static int wm8750_remove(struct platform_device
*pdev
)
996 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
997 struct snd_soc_codec
*codec
= socdev
->codec
;
999 if (codec
->control_data
)
1000 wm8750_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1001 run_delayed_work(&codec
->delayed_work
);
1002 snd_soc_free_pcms(socdev
);
1003 snd_soc_dapm_free(socdev
);
1004 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1005 i2c_del_driver(&wm8750_i2c_driver
);
1007 kfree(codec
->private_data
);
1013 struct snd_soc_codec_device soc_codec_dev_wm8750
= {
1014 .probe
= wm8750_probe
,
1015 .remove
= wm8750_remove
,
1016 .suspend
= wm8750_suspend
,
1017 .resume
= wm8750_resume
,
1019 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8750
);
1021 MODULE_DESCRIPTION("ASoC WM8750 driver");
1022 MODULE_AUTHOR("Liam Girdwood");
1023 MODULE_LICENSE("GPL");