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"
38 #define WM8750_DEBUG 0
41 #define dbg(format, arg...) \
42 printk(KERN_DEBUG AUDIO_NAME ": " format "\n" , ## arg)
44 #define dbg(format, arg...) do {} while (0)
46 #define err(format, arg...) \
47 printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
48 #define info(format, arg...) \
49 printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
50 #define warn(format, arg...) \
51 printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
53 /* codec private data */
59 * wm8750 register cache
60 * We can't read the WM8750 register space when we
61 * are using 2 wire for device control, so we cache them instead.
63 static const u16 wm8750_reg
[] = {
64 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
65 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
66 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
67 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
68 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
69 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
70 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
71 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
72 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
73 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
74 0x0079, 0x0079, 0x0079, /* 40 */
78 * read wm8750 register cache
80 static inline unsigned int wm8750_read_reg_cache(struct snd_soc_codec
*codec
,
83 u16
*cache
= codec
->reg_cache
;
84 if (reg
> WM8750_CACHE_REGNUM
)
90 * write wm8750 register cache
92 static inline void wm8750_write_reg_cache(struct snd_soc_codec
*codec
,
93 unsigned int reg
, unsigned int value
)
95 u16
*cache
= codec
->reg_cache
;
96 if (reg
> WM8750_CACHE_REGNUM
)
101 static int wm8750_write(struct snd_soc_codec
*codec
, unsigned int reg
,
107 * D15..D9 WM8753 register offset
108 * D8...D0 register data
110 data
[0] = (reg
<< 1) | ((value
>> 8) & 0x0001);
111 data
[1] = value
& 0x00ff;
113 wm8750_write_reg_cache (codec
, reg
, value
);
114 if (codec
->hw_write(codec
->control_data
, data
, 2) == 2)
120 #define wm8750_reset(c) wm8750_write(c, WM8750_RESET, 0)
125 static const char *wm8750_bass
[] = {"Linear Control", "Adaptive Boost"};
126 static const char *wm8750_bass_filter
[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
127 static const char *wm8750_treble
[] = {"8kHz", "4kHz"};
128 static const char *wm8750_3d_lc
[] = {"200Hz", "500Hz"};
129 static const char *wm8750_3d_uc
[] = {"2.2kHz", "1.5kHz"};
130 static const char *wm8750_3d_func
[] = {"Capture", "Playback"};
131 static const char *wm8750_alc_func
[] = {"Off", "Right", "Left", "Stereo"};
132 static const char *wm8750_ng_type
[] = {"Constant PGA Gain",
134 static const char *wm8750_line_mux
[] = {"Line 1", "Line 2", "Line 3", "PGA",
136 static const char *wm8750_pga_sel
[] = {"Line 1", "Line 2", "Line 3",
138 static const char *wm8750_out3
[] = {"VREF", "ROUT1 + Vol", "MonoOut",
140 static const char *wm8750_diff_sel
[] = {"Line 1", "Line 2"};
141 static const char *wm8750_adcpol
[] = {"Normal", "L Invert", "R Invert",
143 static const char *wm8750_deemph
[] = {"None", "32Khz", "44.1Khz", "48Khz"};
144 static const char *wm8750_mono_mux
[] = {"Stereo", "Mono (Left)",
145 "Mono (Right)", "Digital Mono"};
147 static const struct soc_enum wm8750_enum
[] = {
148 SOC_ENUM_SINGLE(WM8750_BASS
, 7, 2, wm8750_bass
),
149 SOC_ENUM_SINGLE(WM8750_BASS
, 6, 2, wm8750_bass_filter
),
150 SOC_ENUM_SINGLE(WM8750_TREBLE
, 6, 2, wm8750_treble
),
151 SOC_ENUM_SINGLE(WM8750_3D
, 5, 2, wm8750_3d_lc
),
152 SOC_ENUM_SINGLE(WM8750_3D
, 6, 2, wm8750_3d_uc
),
153 SOC_ENUM_SINGLE(WM8750_3D
, 7, 2, wm8750_3d_func
),
154 SOC_ENUM_SINGLE(WM8750_ALC1
, 7, 4, wm8750_alc_func
),
155 SOC_ENUM_SINGLE(WM8750_NGATE
, 1, 2, wm8750_ng_type
),
156 SOC_ENUM_SINGLE(WM8750_LOUTM1
, 0, 5, wm8750_line_mux
),
157 SOC_ENUM_SINGLE(WM8750_ROUTM1
, 0, 5, wm8750_line_mux
),
158 SOC_ENUM_SINGLE(WM8750_LADCIN
, 6, 4, wm8750_pga_sel
), /* 10 */
159 SOC_ENUM_SINGLE(WM8750_RADCIN
, 6, 4, wm8750_pga_sel
),
160 SOC_ENUM_SINGLE(WM8750_ADCTL2
, 7, 4, wm8750_out3
),
161 SOC_ENUM_SINGLE(WM8750_ADCIN
, 8, 2, wm8750_diff_sel
),
162 SOC_ENUM_SINGLE(WM8750_ADCDAC
, 5, 4, wm8750_adcpol
),
163 SOC_ENUM_SINGLE(WM8750_ADCDAC
, 1, 4, wm8750_deemph
),
164 SOC_ENUM_SINGLE(WM8750_ADCIN
, 6, 4, wm8750_mono_mux
), /* 16 */
168 static const struct snd_kcontrol_new wm8750_snd_controls
[] = {
170 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL
, WM8750_RINVOL
, 0, 63, 0),
171 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL
, WM8750_RINVOL
, 6, 1, 0),
172 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL
, WM8750_RINVOL
, 7, 1, 1),
174 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V
,
175 WM8750_ROUT1V
, 7, 1, 0),
176 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V
,
177 WM8750_ROUT2V
, 7, 1, 0),
179 SOC_ENUM("Playback De-emphasis", wm8750_enum
[15]),
181 SOC_ENUM("Capture Polarity", wm8750_enum
[14]),
182 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC
, 7, 1, 0),
183 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC
, 8, 1, 0),
185 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC
, WM8750_RDAC
, 0, 255, 0),
187 SOC_ENUM("Bass Boost", wm8750_enum
[0]),
188 SOC_ENUM("Bass Filter", wm8750_enum
[1]),
189 SOC_SINGLE("Bass Volume", WM8750_BASS
, 0, 15, 1),
191 SOC_SINGLE("Treble Volume", WM8750_TREBLE
, 0, 15, 1),
192 SOC_ENUM("Treble Cut-off", wm8750_enum
[2]),
194 SOC_SINGLE("3D Switch", WM8750_3D
, 0, 1, 0),
195 SOC_SINGLE("3D Volume", WM8750_3D
, 1, 15, 0),
196 SOC_ENUM("3D Lower Cut-off", wm8750_enum
[3]),
197 SOC_ENUM("3D Upper Cut-off", wm8750_enum
[4]),
198 SOC_ENUM("3D Mode", wm8750_enum
[5]),
200 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1
, 0, 7, 0),
201 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1
, 4, 7, 0),
202 SOC_ENUM("ALC Capture Function", wm8750_enum
[6]),
203 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2
, 7, 1, 0),
204 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2
, 0, 15, 0),
205 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3
, 4, 15, 0),
206 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3
, 0, 15, 0),
207 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE
, 3, 31, 0),
208 SOC_ENUM("ALC Capture NG Type", wm8750_enum
[4]),
209 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE
, 0, 1, 0),
211 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC
, 0, 255, 0),
212 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC
, 0, 255, 0),
214 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1
, 0, 1, 0),
215 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1
, 1, 1, 0),
217 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2
, 4, 1, 0),
220 /* ADCDAC Bit 0 - ADCHPD */
221 /* ADCDAC Bit 4 - HPOR */
222 /* ADCTL1 Bit 2,3 - DATSEL */
223 /* ADCTL1 Bit 4,5 - DMONOMIX */
224 /* ADCTL1 Bit 6,7 - VSEL */
225 /* ADCTL2 Bit 2 - LRCM */
226 /* ADCTL2 Bit 3 - TRI */
227 /* ADCTL3 Bit 5 - HPFLREN */
228 /* ADCTL3 Bit 6 - VROI */
229 /* ADCTL3 Bit 7,8 - ADCLRM */
230 /* ADCIN Bit 4 - LDCM */
231 /* ADCIN Bit 5 - RDCM */
233 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN
, WM8750_RADCIN
, 4, 3, 0),
235 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1
,
236 WM8750_LOUTM2
, 4, 7, 1),
237 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1
,
238 WM8750_ROUTM2
, 4, 7, 1),
239 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1
,
240 WM8750_MOUTM2
, 4, 7, 1),
242 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV
, 7, 1, 0),
244 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V
, WM8750_ROUT1V
,
246 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V
, WM8750_ROUT2V
,
249 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV
, 0, 127, 0),
253 /* add non dapm controls */
254 static int wm8750_add_controls(struct snd_soc_codec
*codec
)
258 for (i
= 0; i
< ARRAY_SIZE(wm8750_snd_controls
); i
++) {
259 err
= snd_ctl_add(codec
->card
,
260 snd_soc_cnew(&wm8750_snd_controls
[i
],codec
, NULL
));
272 static const struct snd_kcontrol_new wm8750_left_mixer_controls
[] = {
273 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1
, 8, 1, 0),
274 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1
, 7, 1, 0),
275 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2
, 8, 1, 0),
276 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2
, 7, 1, 0),
280 static const struct snd_kcontrol_new wm8750_right_mixer_controls
[] = {
281 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1
, 8, 1, 0),
282 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1
, 7, 1, 0),
283 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2
, 8, 1, 0),
284 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2
, 7, 1, 0),
288 static const struct snd_kcontrol_new wm8750_mono_mixer_controls
[] = {
289 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1
, 8, 1, 0),
290 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1
, 7, 1, 0),
291 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2
, 8, 1, 0),
292 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2
, 7, 1, 0),
296 static const struct snd_kcontrol_new wm8750_left_line_controls
=
297 SOC_DAPM_ENUM("Route", wm8750_enum
[8]);
300 static const struct snd_kcontrol_new wm8750_right_line_controls
=
301 SOC_DAPM_ENUM("Route", wm8750_enum
[9]);
304 static const struct snd_kcontrol_new wm8750_left_pga_controls
=
305 SOC_DAPM_ENUM("Route", wm8750_enum
[10]);
308 static const struct snd_kcontrol_new wm8750_right_pga_controls
=
309 SOC_DAPM_ENUM("Route", wm8750_enum
[11]);
312 static const struct snd_kcontrol_new wm8750_out3_controls
=
313 SOC_DAPM_ENUM("Route", wm8750_enum
[12]);
315 /* Differential Mux */
316 static const struct snd_kcontrol_new wm8750_diffmux_controls
=
317 SOC_DAPM_ENUM("Route", wm8750_enum
[13]);
320 static const struct snd_kcontrol_new wm8750_monomux_controls
=
321 SOC_DAPM_ENUM("Route", wm8750_enum
[16]);
323 static const struct snd_soc_dapm_widget wm8750_dapm_widgets
[] = {
324 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM
, 0, 0,
325 &wm8750_left_mixer_controls
[0],
326 ARRAY_SIZE(wm8750_left_mixer_controls
)),
327 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM
, 0, 0,
328 &wm8750_right_mixer_controls
[0],
329 ARRAY_SIZE(wm8750_right_mixer_controls
)),
330 SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2
, 2, 0,
331 &wm8750_mono_mixer_controls
[0],
332 ARRAY_SIZE(wm8750_mono_mixer_controls
)),
334 SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2
, 3, 0, NULL
, 0),
335 SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2
, 4, 0, NULL
, 0),
336 SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2
, 5, 0, NULL
, 0),
337 SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2
, 6, 0, NULL
, 0),
338 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2
, 7, 0),
339 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2
, 8, 0),
341 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1
, 1, 0),
342 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1
, 2, 0),
343 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1
, 3, 0),
345 SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1
, 5, 0,
346 &wm8750_left_pga_controls
),
347 SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1
, 4, 0,
348 &wm8750_right_pga_controls
),
349 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM
, 0, 0,
350 &wm8750_left_line_controls
),
351 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM
, 0, 0,
352 &wm8750_right_line_controls
),
354 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM
, 0, 0, &wm8750_out3_controls
),
355 SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2
, 1, 0, NULL
, 0),
356 SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2
, 2, 0, NULL
, 0),
358 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM
, 0, 0,
359 &wm8750_diffmux_controls
),
360 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM
, 0, 0,
361 &wm8750_monomux_controls
),
362 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM
, 0, 0,
363 &wm8750_monomux_controls
),
365 SND_SOC_DAPM_OUTPUT("LOUT1"),
366 SND_SOC_DAPM_OUTPUT("ROUT1"),
367 SND_SOC_DAPM_OUTPUT("LOUT2"),
368 SND_SOC_DAPM_OUTPUT("ROUT2"),
369 SND_SOC_DAPM_OUTPUT("MONO"),
370 SND_SOC_DAPM_OUTPUT("OUT3"),
372 SND_SOC_DAPM_INPUT("LINPUT1"),
373 SND_SOC_DAPM_INPUT("LINPUT2"),
374 SND_SOC_DAPM_INPUT("LINPUT3"),
375 SND_SOC_DAPM_INPUT("RINPUT1"),
376 SND_SOC_DAPM_INPUT("RINPUT2"),
377 SND_SOC_DAPM_INPUT("RINPUT3"),
380 static const char *audio_map
[][3] = {
382 {"Left Mixer", "Playback Switch", "Left DAC"},
383 {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
384 {"Left Mixer", "Right Playback Switch", "Right DAC"},
385 {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
388 {"Right Mixer", "Left Playback Switch", "Left DAC"},
389 {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
390 {"Right Mixer", "Playback Switch", "Right DAC"},
391 {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
394 {"Left Out 1", NULL
, "Left Mixer"},
395 {"LOUT1", NULL
, "Left Out 1"},
398 {"Left Out 2", NULL
, "Left Mixer"},
399 {"LOUT2", NULL
, "Left Out 2"},
402 {"Right Out 1", NULL
, "Right Mixer"},
403 {"ROUT1", NULL
, "Right Out 1"},
406 {"Right Out 2", NULL
, "Right Mixer"},
407 {"ROUT2", NULL
, "Right Out 2"},
410 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
411 {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
412 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
413 {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
416 {"Mono Out 1", NULL
, "Mono Mixer"},
417 {"MONO1", NULL
, "Mono Out 1"},
420 {"Out3 Mux", "VREF", "VREF"},
421 {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
422 {"Out3 Mux", "ROUT1", "Right Mixer"},
423 {"Out3 Mux", "MonoOut", "MONO1"},
424 {"Out 3", NULL
, "Out3 Mux"},
425 {"OUT3", NULL
, "Out 3"},
428 {"Left Line Mux", "Line 1", "LINPUT1"},
429 {"Left Line Mux", "Line 2", "LINPUT2"},
430 {"Left Line Mux", "Line 3", "LINPUT3"},
431 {"Left Line Mux", "PGA", "Left PGA Mux"},
432 {"Left Line Mux", "Differential", "Differential Mux"},
435 {"Right Line Mux", "Line 1", "RINPUT1"},
436 {"Right Line Mux", "Line 2", "RINPUT2"},
437 {"Right Line Mux", "Line 3", "RINPUT3"},
438 {"Right Line Mux", "PGA", "Right PGA Mux"},
439 {"Right Line Mux", "Differential", "Differential Mux"},
442 {"Left PGA Mux", "Line 1", "LINPUT1"},
443 {"Left PGA Mux", "Line 2", "LINPUT2"},
444 {"Left PGA Mux", "Line 3", "LINPUT3"},
445 {"Left PGA Mux", "Differential", "Differential Mux"},
448 {"Right PGA Mux", "Line 1", "RINPUT1"},
449 {"Right PGA Mux", "Line 2", "RINPUT2"},
450 {"Right PGA Mux", "Line 3", "RINPUT3"},
451 {"Right PGA Mux", "Differential", "Differential Mux"},
453 /* Differential Mux */
454 {"Differential Mux", "Line 1", "LINPUT1"},
455 {"Differential Mux", "Line 1", "RINPUT1"},
456 {"Differential Mux", "Line 2", "LINPUT2"},
457 {"Differential Mux", "Line 2", "RINPUT2"},
460 {"Left ADC Mux", "Stereo", "Left PGA Mux"},
461 {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
462 {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
465 {"Right ADC Mux", "Stereo", "Right PGA Mux"},
466 {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
467 {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
470 {"Left ADC", NULL
, "Left ADC Mux"},
471 {"Right ADC", NULL
, "Right ADC Mux"},
477 static int wm8750_add_widgets(struct snd_soc_codec
*codec
)
481 for(i
= 0; i
< ARRAY_SIZE(wm8750_dapm_widgets
); i
++) {
482 snd_soc_dapm_new_control(codec
, &wm8750_dapm_widgets
[i
]);
485 /* set up audio path audio_mapnects */
486 for(i
= 0; audio_map
[i
][0] != NULL
; i
++) {
487 snd_soc_dapm_connect_input(codec
, audio_map
[i
][0],
488 audio_map
[i
][1], audio_map
[i
][2]);
491 snd_soc_dapm_new_widgets(codec
);
503 /* codec hifi mclk clock divider coefficients */
504 static const struct _coeff_div coeff_div
[] = {
506 {12288000, 8000, 1536, 0x6, 0x0},
507 {11289600, 8000, 1408, 0x16, 0x0},
508 {18432000, 8000, 2304, 0x7, 0x0},
509 {16934400, 8000, 2112, 0x17, 0x0},
510 {12000000, 8000, 1500, 0x6, 0x1},
513 {11289600, 11025, 1024, 0x18, 0x0},
514 {16934400, 11025, 1536, 0x19, 0x0},
515 {12000000, 11025, 1088, 0x19, 0x1},
518 {12288000, 16000, 768, 0xa, 0x0},
519 {18432000, 16000, 1152, 0xb, 0x0},
520 {12000000, 16000, 750, 0xa, 0x1},
523 {11289600, 22050, 512, 0x1a, 0x0},
524 {16934400, 22050, 768, 0x1b, 0x0},
525 {12000000, 22050, 544, 0x1b, 0x1},
528 {12288000, 32000, 384, 0xc, 0x0},
529 {18432000, 32000, 576, 0xd, 0x0},
530 {12000000, 32000, 375, 0xa, 0x1},
533 {11289600, 44100, 256, 0x10, 0x0},
534 {16934400, 44100, 384, 0x11, 0x0},
535 {12000000, 44100, 272, 0x11, 0x1},
538 {12288000, 48000, 256, 0x0, 0x0},
539 {18432000, 48000, 384, 0x1, 0x0},
540 {12000000, 48000, 250, 0x0, 0x1},
543 {11289600, 88200, 128, 0x1e, 0x0},
544 {16934400, 88200, 192, 0x1f, 0x0},
545 {12000000, 88200, 136, 0x1f, 0x1},
548 {12288000, 96000, 128, 0xe, 0x0},
549 {18432000, 96000, 192, 0xf, 0x0},
550 {12000000, 96000, 125, 0xe, 0x1},
553 static inline int get_coeff(int mclk
, int rate
)
557 for (i
= 0; i
< ARRAY_SIZE(coeff_div
); i
++) {
558 if (coeff_div
[i
].rate
== rate
&& coeff_div
[i
].mclk
== mclk
)
562 printk(KERN_ERR
"wm8750: could not get coeff for mclk %d @ rate %d\n",
567 static int wm8750_set_dai_sysclk(struct snd_soc_codec_dai
*codec_dai
,
568 int clk_id
, unsigned int freq
, int dir
)
570 struct snd_soc_codec
*codec
= codec_dai
->codec
;
571 struct wm8750_priv
*wm8750
= codec
->private_data
;
579 wm8750
->sysclk
= freq
;
585 static int wm8750_set_dai_fmt(struct snd_soc_codec_dai
*codec_dai
,
588 struct snd_soc_codec
*codec
= codec_dai
->codec
;
591 /* set master/slave audio interface */
592 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
593 case SND_SOC_DAIFMT_CBM_CFM
:
596 case SND_SOC_DAIFMT_CBS_CFS
:
602 /* interface format */
603 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
604 case SND_SOC_DAIFMT_I2S
:
607 case SND_SOC_DAIFMT_RIGHT_J
:
609 case SND_SOC_DAIFMT_LEFT_J
:
612 case SND_SOC_DAIFMT_DSP_A
:
615 case SND_SOC_DAIFMT_DSP_B
:
622 /* clock inversion */
623 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
624 case SND_SOC_DAIFMT_NB_NF
:
626 case SND_SOC_DAIFMT_IB_IF
:
629 case SND_SOC_DAIFMT_IB_NF
:
632 case SND_SOC_DAIFMT_NB_IF
:
639 wm8750_write(codec
, WM8750_IFACE
, iface
);
643 static int wm8750_pcm_hw_params(struct snd_pcm_substream
*substream
,
644 struct snd_pcm_hw_params
*params
)
646 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
647 struct snd_soc_device
*socdev
= rtd
->socdev
;
648 struct snd_soc_codec
*codec
= socdev
->codec
;
649 struct wm8750_priv
*wm8750
= codec
->private_data
;
650 u16 iface
= wm8750_read_reg_cache(codec
, WM8750_IFACE
) & 0x1f3;
651 u16 srate
= wm8750_read_reg_cache(codec
, WM8750_SRATE
) & 0x1c0;
652 int coeff
= get_coeff(wm8750
->sysclk
, params_rate(params
));
655 switch (params_format(params
)) {
656 case SNDRV_PCM_FORMAT_S16_LE
:
658 case SNDRV_PCM_FORMAT_S20_3LE
:
661 case SNDRV_PCM_FORMAT_S24_LE
:
664 case SNDRV_PCM_FORMAT_S32_LE
:
669 /* set iface & srate */
670 wm8750_write(codec
, WM8750_IFACE
, iface
);
672 wm8750_write(codec
, WM8750_SRATE
, srate
|
673 (coeff_div
[coeff
].sr
<< 1) | coeff_div
[coeff
].usb
);
678 static int wm8750_mute(struct snd_soc_codec_dai
*dai
, int mute
)
680 struct snd_soc_codec
*codec
= dai
->codec
;
681 u16 mute_reg
= wm8750_read_reg_cache(codec
, WM8750_ADCDAC
) & 0xfff7;
684 wm8750_write(codec
, WM8750_ADCDAC
, mute_reg
| 0x8);
686 wm8750_write(codec
, WM8750_ADCDAC
, mute_reg
);
690 static int wm8750_dapm_event(struct snd_soc_codec
*codec
, int event
)
692 u16 pwr_reg
= wm8750_read_reg_cache(codec
, WM8750_PWR1
) & 0xfe3e;
695 case SNDRV_CTL_POWER_D0
: /* full On */
696 /* set vmid to 50k and unmute dac */
697 wm8750_write(codec
, WM8750_PWR1
, pwr_reg
| 0x00c0);
699 case SNDRV_CTL_POWER_D1
: /* partial On */
700 case SNDRV_CTL_POWER_D2
: /* partial On */
701 /* set vmid to 5k for quick power up */
702 wm8750_write(codec
, WM8750_PWR1
, pwr_reg
| 0x01c1);
704 case SNDRV_CTL_POWER_D3hot
: /* Off, with power */
705 /* mute dac and set vmid to 500k, enable VREF */
706 wm8750_write(codec
, WM8750_PWR1
, pwr_reg
| 0x0141);
708 case SNDRV_CTL_POWER_D3cold
: /* Off, without power */
709 wm8750_write(codec
, WM8750_PWR1
, 0x0001);
712 codec
->dapm_state
= event
;
716 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
717 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
718 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
720 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
721 SNDRV_PCM_FMTBIT_S24_LE)
723 struct snd_soc_codec_dai wm8750_dai
= {
726 .stream_name
= "Playback",
729 .rates
= WM8750_RATES
,
730 .formats
= WM8750_FORMATS
,},
732 .stream_name
= "Capture",
735 .rates
= WM8750_RATES
,
736 .formats
= WM8750_FORMATS
,},
738 .hw_params
= wm8750_pcm_hw_params
,
741 .digital_mute
= wm8750_mute
,
742 .set_fmt
= wm8750_set_dai_fmt
,
743 .set_sysclk
= wm8750_set_dai_sysclk
,
746 EXPORT_SYMBOL_GPL(wm8750_dai
);
748 static void wm8750_work(struct work_struct
*work
)
750 struct snd_soc_codec
*codec
=
751 container_of(work
, struct snd_soc_codec
, delayed_work
.work
);
752 wm8750_dapm_event(codec
, codec
->dapm_state
);
755 static int wm8750_suspend(struct platform_device
*pdev
, pm_message_t state
)
757 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
758 struct snd_soc_codec
*codec
= socdev
->codec
;
760 wm8750_dapm_event(codec
, SNDRV_CTL_POWER_D3cold
);
764 static int wm8750_resume(struct platform_device
*pdev
)
766 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
767 struct snd_soc_codec
*codec
= socdev
->codec
;
770 u16
*cache
= codec
->reg_cache
;
772 /* Sync reg_cache with the hardware */
773 for (i
= 0; i
< ARRAY_SIZE(wm8750_reg
); i
++) {
774 if (i
== WM8750_RESET
)
776 data
[0] = (i
<< 1) | ((cache
[i
] >> 8) & 0x0001);
777 data
[1] = cache
[i
] & 0x00ff;
778 codec
->hw_write(codec
->control_data
, data
, 2);
781 wm8750_dapm_event(codec
, SNDRV_CTL_POWER_D3hot
);
783 /* charge wm8750 caps */
784 if (codec
->suspend_dapm_state
== SNDRV_CTL_POWER_D0
) {
785 wm8750_dapm_event(codec
, SNDRV_CTL_POWER_D2
);
786 codec
->dapm_state
= SNDRV_CTL_POWER_D0
;
787 schedule_delayed_work(&codec
->delayed_work
, msecs_to_jiffies(1000));
794 * initialise the WM8750 driver
795 * register the mixer and dsp interfaces with the kernel
797 static int wm8750_init(struct snd_soc_device
*socdev
)
799 struct snd_soc_codec
*codec
= socdev
->codec
;
802 codec
->name
= "WM8750";
803 codec
->owner
= THIS_MODULE
;
804 codec
->read
= wm8750_read_reg_cache
;
805 codec
->write
= wm8750_write
;
806 codec
->dapm_event
= wm8750_dapm_event
;
807 codec
->dai
= &wm8750_dai
;
809 codec
->reg_cache_size
= sizeof(wm8750_reg
);
810 codec
->reg_cache
= kmemdup(wm8750_reg
, sizeof(wm8750_reg
), GFP_KERNEL
);
811 if (codec
->reg_cache
== NULL
)
817 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
819 printk(KERN_ERR
"wm8750: failed to create pcms\n");
823 /* charge output caps */
824 wm8750_dapm_event(codec
, SNDRV_CTL_POWER_D2
);
825 codec
->dapm_state
= SNDRV_CTL_POWER_D3hot
;
826 schedule_delayed_work(&codec
->delayed_work
, msecs_to_jiffies(1000));
828 /* set the update bits */
829 reg
= wm8750_read_reg_cache(codec
, WM8750_LDAC
);
830 wm8750_write(codec
, WM8750_LDAC
, reg
| 0x0100);
831 reg
= wm8750_read_reg_cache(codec
, WM8750_RDAC
);
832 wm8750_write(codec
, WM8750_RDAC
, reg
| 0x0100);
833 reg
= wm8750_read_reg_cache(codec
, WM8750_LOUT1V
);
834 wm8750_write(codec
, WM8750_LOUT1V
, reg
| 0x0100);
835 reg
= wm8750_read_reg_cache(codec
, WM8750_ROUT1V
);
836 wm8750_write(codec
, WM8750_ROUT1V
, reg
| 0x0100);
837 reg
= wm8750_read_reg_cache(codec
, WM8750_LOUT2V
);
838 wm8750_write(codec
, WM8750_LOUT2V
, reg
| 0x0100);
839 reg
= wm8750_read_reg_cache(codec
, WM8750_ROUT2V
);
840 wm8750_write(codec
, WM8750_ROUT2V
, reg
| 0x0100);
841 reg
= wm8750_read_reg_cache(codec
, WM8750_LINVOL
);
842 wm8750_write(codec
, WM8750_LINVOL
, reg
| 0x0100);
843 reg
= wm8750_read_reg_cache(codec
, WM8750_RINVOL
);
844 wm8750_write(codec
, WM8750_RINVOL
, reg
| 0x0100);
846 wm8750_add_controls(codec
);
847 wm8750_add_widgets(codec
);
848 ret
= snd_soc_register_card(socdev
);
850 printk(KERN_ERR
"wm8750: failed to register card\n");
856 snd_soc_free_pcms(socdev
);
857 snd_soc_dapm_free(socdev
);
859 kfree(codec
->reg_cache
);
863 /* If the i2c layer weren't so broken, we could pass this kind of data
865 static struct snd_soc_device
*wm8750_socdev
;
867 #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
870 * WM8731 2 wire address is determined by GPIO5
871 * state during powerup.
875 static unsigned short normal_i2c
[] = { 0, I2C_CLIENT_END
};
877 /* Magic definition of all other variables and things */
880 static struct i2c_driver wm8750_i2c_driver
;
881 static struct i2c_client client_template
;
883 static int wm8750_codec_probe(struct i2c_adapter
*adap
, int addr
, int kind
)
885 struct snd_soc_device
*socdev
= wm8750_socdev
;
886 struct wm8750_setup_data
*setup
= socdev
->codec_data
;
887 struct snd_soc_codec
*codec
= socdev
->codec
;
888 struct i2c_client
*i2c
;
891 if (addr
!= setup
->i2c_address
)
894 client_template
.adapter
= adap
;
895 client_template
.addr
= addr
;
897 i2c
= kmemdup(&client_template
, sizeof(client_template
), GFP_KERNEL
);
902 i2c_set_clientdata(i2c
, codec
);
903 codec
->control_data
= i2c
;
905 ret
= i2c_attach_client(i2c
);
907 err("failed to attach codec at addr %x\n", addr
);
911 ret
= wm8750_init(socdev
);
913 err("failed to initialise WM8750\n");
924 static int wm8750_i2c_detach(struct i2c_client
*client
)
926 struct snd_soc_codec
*codec
= i2c_get_clientdata(client
);
927 i2c_detach_client(client
);
928 kfree(codec
->reg_cache
);
933 static int wm8750_i2c_attach(struct i2c_adapter
*adap
)
935 return i2c_probe(adap
, &addr_data
, wm8750_codec_probe
);
938 /* corgi i2c codec control layer */
939 static struct i2c_driver wm8750_i2c_driver
= {
941 .name
= "WM8750 I2C Codec",
942 .owner
= THIS_MODULE
,
944 .id
= I2C_DRIVERID_WM8750
,
945 .attach_adapter
= wm8750_i2c_attach
,
946 .detach_client
= wm8750_i2c_detach
,
950 static struct i2c_client client_template
= {
952 .driver
= &wm8750_i2c_driver
,
956 static int wm8750_probe(struct platform_device
*pdev
)
958 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
959 struct wm8750_setup_data
*setup
= socdev
->codec_data
;
960 struct snd_soc_codec
*codec
;
961 struct wm8750_priv
*wm8750
;
964 info("WM8750 Audio Codec %s", WM8750_VERSION
);
965 codec
= kzalloc(sizeof(struct snd_soc_codec
), GFP_KERNEL
);
969 wm8750
= kzalloc(sizeof(struct wm8750_priv
), GFP_KERNEL
);
970 if (wm8750
== NULL
) {
975 codec
->private_data
= wm8750
;
976 socdev
->codec
= codec
;
977 mutex_init(&codec
->mutex
);
978 INIT_LIST_HEAD(&codec
->dapm_widgets
);
979 INIT_LIST_HEAD(&codec
->dapm_paths
);
980 wm8750_socdev
= socdev
;
981 INIT_DELAYED_WORK(&codec
->delayed_work
, wm8750_work
);
983 #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
984 if (setup
->i2c_address
) {
985 normal_i2c
[0] = setup
->i2c_address
;
986 codec
->hw_write
= (hw_write_t
)i2c_master_send
;
987 ret
= i2c_add_driver(&wm8750_i2c_driver
);
989 printk(KERN_ERR
"can't add i2c driver");
992 /* Add other interfaces here */
999 * This function forces any delayed work to be queued and run.
1001 static int run_delayed_work(struct delayed_work
*dwork
)
1005 /* cancel any work waiting to be queued. */
1006 ret
= cancel_delayed_work(dwork
);
1008 /* if there was any work waiting then we run it now and
1009 * wait for it's completion */
1011 schedule_delayed_work(dwork
, 0);
1012 flush_scheduled_work();
1017 /* power down chip */
1018 static int wm8750_remove(struct platform_device
*pdev
)
1020 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1021 struct snd_soc_codec
*codec
= socdev
->codec
;
1023 if (codec
->control_data
)
1024 wm8750_dapm_event(codec
, SNDRV_CTL_POWER_D3cold
);
1025 run_delayed_work(&codec
->delayed_work
);
1026 snd_soc_free_pcms(socdev
);
1027 snd_soc_dapm_free(socdev
);
1028 #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
1029 i2c_del_driver(&wm8750_i2c_driver
);
1031 kfree(codec
->private_data
);
1037 struct snd_soc_codec_device soc_codec_dev_wm8750
= {
1038 .probe
= wm8750_probe
,
1039 .remove
= wm8750_remove
,
1040 .suspend
= wm8750_suspend
,
1041 .resume
= wm8750_resume
,
1044 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8750
);
1046 MODULE_DESCRIPTION("ASoC WM8750 driver");
1047 MODULE_AUTHOR("Liam Girdwood");
1048 MODULE_LICENSE("GPL");