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-rw-r--r--sound/soc/codecs/Kconfig4
-rw-r--r--sound/soc/codecs/Makefile2
-rw-r--r--sound/soc/codecs/wm8974.c844
-rw-r--r--sound/soc/codecs/wm8974.h104
4 files changed, 954 insertions, 0 deletions
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 7f78b65fc4e3..91daffd30e8b 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -38,6 +38,7 @@ config SND_SOC_ALL_CODECS
38 select SND_SOC_WM8940 if I2C 38 select SND_SOC_WM8940 if I2C
39 select SND_SOC_WM8960 if I2C 39 select SND_SOC_WM8960 if I2C
40 select SND_SOC_WM8971 if I2C 40 select SND_SOC_WM8971 if I2C
41 select SND_SOC_WM8974 if I2C
41 select SND_SOC_WM8988 if SND_SOC_I2C_AND_SPI 42 select SND_SOC_WM8988 if SND_SOC_I2C_AND_SPI
42 select SND_SOC_WM8990 if I2C 43 select SND_SOC_WM8990 if I2C
43 select SND_SOC_WM9081 if I2C 44 select SND_SOC_WM9081 if I2C
@@ -151,6 +152,9 @@ config SND_SOC_WM8960
151config SND_SOC_WM8971 152config SND_SOC_WM8971
152 tristate 153 tristate
153 154
155config SND_SOC_WM8974
156 tristate
157
154config SND_SOC_WM8988 158config SND_SOC_WM8988
155 tristate 159 tristate
156 160
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 70c55fa2c436..9c67d66cdb71 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -26,6 +26,7 @@ snd-soc-wm8903-objs := wm8903.o
26snd-soc-wm8940-objs := wm8940.o 26snd-soc-wm8940-objs := wm8940.o
27snd-soc-wm8960-objs := wm8960.o 27snd-soc-wm8960-objs := wm8960.o
28snd-soc-wm8971-objs := wm8971.o 28snd-soc-wm8971-objs := wm8971.o
29snd-soc-wm8974-objs := wm8974.o
29snd-soc-wm8988-objs := wm8988.o 30snd-soc-wm8988-objs := wm8988.o
30snd-soc-wm8990-objs := wm8990.o 31snd-soc-wm8990-objs := wm8990.o
31snd-soc-wm9081-objs := wm9081.o 32snd-soc-wm9081-objs := wm9081.o
@@ -59,6 +60,7 @@ obj-$(CONFIG_SND_SOC_WM8753) += snd-soc-wm8753.o
59obj-$(CONFIG_SND_SOC_WM8900) += snd-soc-wm8900.o 60obj-$(CONFIG_SND_SOC_WM8900) += snd-soc-wm8900.o
60obj-$(CONFIG_SND_SOC_WM8903) += snd-soc-wm8903.o 61obj-$(CONFIG_SND_SOC_WM8903) += snd-soc-wm8903.o
61obj-$(CONFIG_SND_SOC_WM8971) += snd-soc-wm8971.o 62obj-$(CONFIG_SND_SOC_WM8971) += snd-soc-wm8971.o
63obj-$(CONFIG_SND_SOC_WM8974) += snd-soc-wm8974.o
62obj-$(CONFIG_SND_SOC_WM8940) += snd-soc-wm8940.o 64obj-$(CONFIG_SND_SOC_WM8940) += snd-soc-wm8940.o
63obj-$(CONFIG_SND_SOC_WM8960) += snd-soc-wm8960.o 65obj-$(CONFIG_SND_SOC_WM8960) += snd-soc-wm8960.o
64obj-$(CONFIG_SND_SOC_WM8988) += snd-soc-wm8988.o 66obj-$(CONFIG_SND_SOC_WM8988) += snd-soc-wm8988.o
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
new file mode 100644
index 000000000000..2b0c99c3e65a
--- /dev/null
+++ b/sound/soc/codecs/wm8974.c
@@ -0,0 +1,844 @@
1/*
2 * wm8974.c -- WM8974 ALSA Soc Audio driver
3 *
4 * Copyright 2006 Wolfson Microelectronics PLC.
5 *
6 * Author: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/version.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/delay.h>
19#include <linux/pm.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>
28
29#include "wm8974.h"
30
31#define AUDIO_NAME "wm8974"
32#define WM8974_VERSION "0.6"
33
34struct snd_soc_codec_device soc_codec_dev_wm8974;
35
36/*
37 * wm8974 register cache
38 * We can't read the WM8974 register space when we are
39 * using 2 wire for device control, so we cache them instead.
40 */
41static const u16 wm8974_reg[WM8974_CACHEREGNUM] = {
42 0x0000, 0x0000, 0x0000, 0x0000,
43 0x0050, 0x0000, 0x0140, 0x0000,
44 0x0000, 0x0000, 0x0000, 0x00ff,
45 0x0000, 0x0000, 0x0100, 0x00ff,
46 0x0000, 0x0000, 0x012c, 0x002c,
47 0x002c, 0x002c, 0x002c, 0x0000,
48 0x0032, 0x0000, 0x0000, 0x0000,
49 0x0000, 0x0000, 0x0000, 0x0000,
50 0x0038, 0x000b, 0x0032, 0x0000,
51 0x0008, 0x000c, 0x0093, 0x00e9,
52 0x0000, 0x0000, 0x0000, 0x0000,
53 0x0003, 0x0010, 0x0000, 0x0000,
54 0x0000, 0x0002, 0x0000, 0x0000,
55 0x0000, 0x0000, 0x0039, 0x0000,
56 0x0000,
57};
58
59/*
60 * read wm8974 register cache
61 */
62static inline unsigned int wm8974_read_reg_cache(struct snd_soc_codec * codec,
63 unsigned int reg)
64{
65 u16 *cache = codec->reg_cache;
66 if (reg == WM8974_RESET)
67 return 0;
68 if (reg >= WM8974_CACHEREGNUM)
69 return -1;
70 return cache[reg];
71}
72
73/*
74 * write wm8974 register cache
75 */
76static inline void wm8974_write_reg_cache(struct snd_soc_codec *codec,
77 u16 reg, unsigned int value)
78{
79 u16 *cache = codec->reg_cache;
80 if (reg >= WM8974_CACHEREGNUM)
81 return;
82 cache[reg] = value;
83}
84
85/*
86 * write to the WM8974 register space
87 */
88static int wm8974_write(struct snd_soc_codec *codec, unsigned int reg,
89 unsigned int value)
90{
91 u8 data[2];
92
93 /* data is
94 * D15..D9 WM8974 register offset
95 * D8...D0 register data
96 */
97 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
98 data[1] = value & 0x00ff;
99
100 wm8974_write_reg_cache (codec, reg, value);
101 if (codec->hw_write(codec->control_data, data, 2) == 2)
102 return 0;
103 else
104 return -EIO;
105}
106
107#define wm8974_reset(c) wm8974_write(c, WM8974_RESET, 0)
108
109static const char *wm8974_companding[] = {"Off", "NC", "u-law", "A-law" };
110static const char *wm8974_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz" };
111static const char *wm8974_eqmode[] = {"Capture", "Playback" };
112static const char *wm8974_bw[] = {"Narrow", "Wide" };
113static const char *wm8974_eq1[] = {"80Hz", "105Hz", "135Hz", "175Hz" };
114static const char *wm8974_eq2[] = {"230Hz", "300Hz", "385Hz", "500Hz" };
115static const char *wm8974_eq3[] = {"650Hz", "850Hz", "1.1kHz", "1.4kHz" };
116static const char *wm8974_eq4[] = {"1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz" };
117static const char *wm8974_eq5[] = {"5.3kHz", "6.9kHz", "9kHz", "11.7kHz" };
118static const char *wm8974_alc[] = {"ALC", "Limiter" };
119
120static const struct soc_enum wm8974_enum[] = {
121 SOC_ENUM_SINGLE(WM8974_COMP, 1, 4, wm8974_companding), /* adc */
122 SOC_ENUM_SINGLE(WM8974_COMP, 3, 4, wm8974_companding), /* dac */
123 SOC_ENUM_SINGLE(WM8974_DAC, 4, 4, wm8974_deemp),
124 SOC_ENUM_SINGLE(WM8974_EQ1, 8, 2, wm8974_eqmode),
125
126 SOC_ENUM_SINGLE(WM8974_EQ1, 5, 4, wm8974_eq1),
127 SOC_ENUM_SINGLE(WM8974_EQ2, 8, 2, wm8974_bw),
128 SOC_ENUM_SINGLE(WM8974_EQ2, 5, 4, wm8974_eq2),
129 SOC_ENUM_SINGLE(WM8974_EQ3, 8, 2, wm8974_bw),
130
131 SOC_ENUM_SINGLE(WM8974_EQ3, 5, 4, wm8974_eq3),
132 SOC_ENUM_SINGLE(WM8974_EQ4, 8, 2, wm8974_bw),
133 SOC_ENUM_SINGLE(WM8974_EQ4, 5, 4, wm8974_eq4),
134 SOC_ENUM_SINGLE(WM8974_EQ5, 8, 2, wm8974_bw),
135
136 SOC_ENUM_SINGLE(WM8974_EQ5, 5, 4, wm8974_eq5),
137 SOC_ENUM_SINGLE(WM8974_ALC3, 8, 2, wm8974_alc),
138};
139
140static const struct snd_kcontrol_new wm8974_snd_controls[] = {
141
142SOC_SINGLE("Digital Loopback Switch", WM8974_COMP, 0, 1, 0),
143
144SOC_ENUM("DAC Companding", wm8974_enum[1]),
145SOC_ENUM("ADC Companding", wm8974_enum[0]),
146
147SOC_ENUM("Playback De-emphasis", wm8974_enum[2]),
148SOC_SINGLE("DAC Inversion Switch", WM8974_DAC, 0, 1, 0),
149
150SOC_SINGLE("PCM Volume", WM8974_DACVOL, 0, 127, 0),
151
152SOC_SINGLE("High Pass Filter Switch", WM8974_ADC, 8, 1, 0),
153SOC_SINGLE("High Pass Cut Off", WM8974_ADC, 4, 7, 0),
154SOC_SINGLE("ADC Inversion Switch", WM8974_COMP, 0, 1, 0),
155
156SOC_SINGLE("Capture Volume", WM8974_ADCVOL, 0, 127, 0),
157
158SOC_ENUM("Equaliser Function", wm8974_enum[3]),
159SOC_ENUM("EQ1 Cut Off", wm8974_enum[4]),
160SOC_SINGLE("EQ1 Volume", WM8974_EQ1, 0, 31, 1),
161
162SOC_ENUM("Equaliser EQ2 Bandwith", wm8974_enum[5]),
163SOC_ENUM("EQ2 Cut Off", wm8974_enum[6]),
164SOC_SINGLE("EQ2 Volume", WM8974_EQ2, 0, 31, 1),
165
166SOC_ENUM("Equaliser EQ3 Bandwith", wm8974_enum[7]),
167SOC_ENUM("EQ3 Cut Off", wm8974_enum[8]),
168SOC_SINGLE("EQ3 Volume", WM8974_EQ3, 0, 31, 1),
169
170SOC_ENUM("Equaliser EQ4 Bandwith", wm8974_enum[9]),
171SOC_ENUM("EQ4 Cut Off", wm8974_enum[10]),
172SOC_SINGLE("EQ4 Volume", WM8974_EQ4, 0, 31, 1),
173
174SOC_ENUM("Equaliser EQ5 Bandwith", wm8974_enum[11]),
175SOC_ENUM("EQ5 Cut Off", wm8974_enum[12]),
176SOC_SINGLE("EQ5 Volume", WM8974_EQ5, 0, 31, 1),
177
178SOC_SINGLE("DAC Playback Limiter Switch", WM8974_DACLIM1, 8, 1, 0),
179SOC_SINGLE("DAC Playback Limiter Decay", WM8974_DACLIM1, 4, 15, 0),
180SOC_SINGLE("DAC Playback Limiter Attack", WM8974_DACLIM1, 0, 15, 0),
181
182SOC_SINGLE("DAC Playback Limiter Threshold", WM8974_DACLIM2, 4, 7, 0),
183SOC_SINGLE("DAC Playback Limiter Boost", WM8974_DACLIM2, 0, 15, 0),
184
185SOC_SINGLE("ALC Enable Switch", WM8974_ALC1, 8, 1, 0),
186SOC_SINGLE("ALC Capture Max Gain", WM8974_ALC1, 3, 7, 0),
187SOC_SINGLE("ALC Capture Min Gain", WM8974_ALC1, 0, 7, 0),
188
189SOC_SINGLE("ALC Capture ZC Switch", WM8974_ALC2, 8, 1, 0),
190SOC_SINGLE("ALC Capture Hold", WM8974_ALC2, 4, 7, 0),
191SOC_SINGLE("ALC Capture Target", WM8974_ALC2, 0, 15, 0),
192
193SOC_ENUM("ALC Capture Mode", wm8974_enum[13]),
194SOC_SINGLE("ALC Capture Decay", WM8974_ALC3, 4, 15, 0),
195SOC_SINGLE("ALC Capture Attack", WM8974_ALC3, 0, 15, 0),
196
197SOC_SINGLE("ALC Capture Noise Gate Switch", WM8974_NGATE, 3, 1, 0),
198SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8974_NGATE, 0, 7, 0),
199
200SOC_SINGLE("Capture PGA ZC Switch", WM8974_INPPGA, 7, 1, 0),
201SOC_SINGLE("Capture PGA Volume", WM8974_INPPGA, 0, 63, 0),
202
203SOC_SINGLE("Speaker Playback ZC Switch", WM8974_SPKVOL, 7, 1, 0),
204SOC_SINGLE("Speaker Playback Switch", WM8974_SPKVOL, 6, 1, 1),
205SOC_SINGLE("Speaker Playback Volume", WM8974_SPKVOL, 0, 63, 0),
206
207SOC_SINGLE("Capture Boost(+20dB)", WM8974_ADCBOOST, 8, 1, 0),
208SOC_SINGLE("Mono Playback Switch", WM8974_MONOMIX, 6, 1, 0),
209};
210
211/* add non dapm controls */
212static int wm8974_add_controls(struct snd_soc_codec *codec)
213{
214 int err, i;
215
216 for (i = 0; i < ARRAY_SIZE(wm8974_snd_controls); i++) {
217 err = snd_ctl_add(codec->card,
218 snd_soc_cnew(&wm8974_snd_controls[i],codec, NULL));
219 if (err < 0)
220 return err;
221 }
222
223 return 0;
224}
225
226/* Speaker Output Mixer */
227static const struct snd_kcontrol_new wm8974_speaker_mixer_controls[] = {
228SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_SPKMIX, 1, 1, 0),
229SOC_DAPM_SINGLE("Aux Playback Switch", WM8974_SPKMIX, 5, 1, 0),
230SOC_DAPM_SINGLE("PCM Playback Switch", WM8974_SPKMIX, 0, 1, 1),
231};
232
233/* Mono Output Mixer */
234static const struct snd_kcontrol_new wm8974_mono_mixer_controls[] = {
235SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_MONOMIX, 1, 1, 0),
236SOC_DAPM_SINGLE("Aux Playback Switch", WM8974_MONOMIX, 2, 1, 0),
237SOC_DAPM_SINGLE("PCM Playback Switch", WM8974_MONOMIX, 0, 1, 1),
238};
239
240/* AUX Input boost vol */
241static const struct snd_kcontrol_new wm8974_aux_boost_controls =
242SOC_DAPM_SINGLE("Aux Volume", WM8974_ADCBOOST, 0, 7, 0);
243
244/* Mic Input boost vol */
245static const struct snd_kcontrol_new wm8974_mic_boost_controls =
246SOC_DAPM_SINGLE("Mic Volume", WM8974_ADCBOOST, 4, 7, 0);
247
248/* Capture boost switch */
249static const struct snd_kcontrol_new wm8974_capture_boost_controls =
250SOC_DAPM_SINGLE("Capture Boost Switch", WM8974_INPPGA, 6, 1, 0);
251
252/* Aux In to PGA */
253static const struct snd_kcontrol_new wm8974_aux_capture_boost_controls =
254SOC_DAPM_SINGLE("Aux Capture Boost Switch", WM8974_INPPGA, 2, 1, 0);
255
256/* Mic P In to PGA */
257static const struct snd_kcontrol_new wm8974_micp_capture_boost_controls =
258SOC_DAPM_SINGLE("Mic P Capture Boost Switch", WM8974_INPPGA, 0, 1, 0);
259
260/* Mic N In to PGA */
261static const struct snd_kcontrol_new wm8974_micn_capture_boost_controls =
262SOC_DAPM_SINGLE("Mic N Capture Boost Switch", WM8974_INPPGA, 1, 1, 0);
263
264static const struct snd_soc_dapm_widget wm8974_dapm_widgets[] = {
265SND_SOC_DAPM_MIXER("Speaker Mixer", WM8974_POWER3, 2, 0,
266 &wm8974_speaker_mixer_controls[0],
267 ARRAY_SIZE(wm8974_speaker_mixer_controls)),
268SND_SOC_DAPM_MIXER("Mono Mixer", WM8974_POWER3, 3, 0,
269 &wm8974_mono_mixer_controls[0],
270 ARRAY_SIZE(wm8974_mono_mixer_controls)),
271SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8974_POWER3, 0, 0),
272SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8974_POWER3, 0, 0),
273SND_SOC_DAPM_PGA("Aux Input", WM8974_POWER1, 6, 0, NULL, 0),
274SND_SOC_DAPM_PGA("SpkN Out", WM8974_POWER3, 5, 0, NULL, 0),
275SND_SOC_DAPM_PGA("SpkP Out", WM8974_POWER3, 6, 0, NULL, 0),
276SND_SOC_DAPM_PGA("Mono Out", WM8974_POWER3, 7, 0, NULL, 0),
277SND_SOC_DAPM_PGA("Mic PGA", WM8974_POWER2, 2, 0, NULL, 0),
278
279SND_SOC_DAPM_PGA("Aux Boost", SND_SOC_NOPM, 0, 0,
280 &wm8974_aux_boost_controls, 1),
281SND_SOC_DAPM_PGA("Mic Boost", SND_SOC_NOPM, 0, 0,
282 &wm8974_mic_boost_controls, 1),
283SND_SOC_DAPM_SWITCH("Capture Boost", SND_SOC_NOPM, 0, 0,
284 &wm8974_capture_boost_controls),
285
286SND_SOC_DAPM_MIXER("Boost Mixer", WM8974_POWER2, 4, 0, NULL, 0),
287
288SND_SOC_DAPM_MICBIAS("Mic Bias", WM8974_POWER1, 4, 0),
289
290SND_SOC_DAPM_INPUT("MICN"),
291SND_SOC_DAPM_INPUT("MICP"),
292SND_SOC_DAPM_INPUT("AUX"),
293SND_SOC_DAPM_OUTPUT("MONOOUT"),
294SND_SOC_DAPM_OUTPUT("SPKOUTP"),
295SND_SOC_DAPM_OUTPUT("SPKOUTN"),
296};
297
298static const struct snd_soc_dapm_route audio_map[] = {
299 /* Mono output mixer */
300 {"Mono Mixer", "PCM Playback Switch", "DAC"},
301 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
302 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
303
304 /* Speaker output mixer */
305 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
306 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
307 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
308
309 /* Outputs */
310 {"Mono Out", NULL, "Mono Mixer"},
311 {"MONOOUT", NULL, "Mono Out"},
312 {"SpkN Out", NULL, "Speaker Mixer"},
313 {"SpkP Out", NULL, "Speaker Mixer"},
314 {"SPKOUTN", NULL, "SpkN Out"},
315 {"SPKOUTP", NULL, "SpkP Out"},
316
317 /* Boost Mixer */
318 {"Boost Mixer", NULL, "ADC"},
319 {"Capture Boost Switch", "Aux Capture Boost Switch", "AUX"},
320 {"Aux Boost", "Aux Volume", "Boost Mixer"},
321 {"Capture Boost", "Capture Switch", "Boost Mixer"},
322 {"Mic Boost", "Mic Volume", "Boost Mixer"},
323
324 /* Inputs */
325 {"MICP", NULL, "Mic Boost"},
326 {"MICN", NULL, "Mic PGA"},
327 {"Mic PGA", NULL, "Capture Boost"},
328 {"AUX", NULL, "Aux Input"},
329};
330
331static int wm8974_add_widgets(struct snd_soc_codec *codec)
332{
333 snd_soc_dapm_new_controls(codec, wm8974_dapm_widgets,
334 ARRAY_SIZE(wm8974_dapm_widgets));
335
336 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
337
338 snd_soc_dapm_new_widgets(codec);
339 return 0;
340}
341
342struct pll_ {
343 unsigned int in_hz, out_hz;
344 unsigned int pre:4; /* prescale - 1 */
345 unsigned int n:4;
346 unsigned int k;
347};
348
349static struct pll_ pll[] = {
350 {12000000, 11289600, 0, 7, 0x86c220},
351 {12000000, 12288000, 0, 8, 0x3126e8},
352 {13000000, 11289600, 0, 6, 0xf28bd4},
353 {13000000, 12288000, 0, 7, 0x8fd525},
354 {12288000, 11289600, 0, 7, 0x59999a},
355 {11289600, 12288000, 0, 8, 0x80dee9},
356 /* liam - add more entries */
357};
358
359static int wm8974_set_dai_pll(struct snd_soc_dai *codec_dai,
360 int pll_id, unsigned int freq_in, unsigned int freq_out)
361{
362 struct snd_soc_codec *codec = codec_dai->codec;
363 int i;
364 u16 reg;
365
366 if(freq_in == 0 || freq_out == 0) {
367 reg = wm8974_read_reg_cache(codec, WM8974_POWER1);
368 wm8974_write(codec, WM8974_POWER1, reg & 0x1df);
369 return 0;
370 }
371
372 for(i = 0; i < ARRAY_SIZE(pll); i++) {
373 if (freq_in == pll[i].in_hz && freq_out == pll[i].out_hz) {
374 wm8974_write(codec, WM8974_PLLN, (pll[i].pre << 4) | pll[i].n);
375 wm8974_write(codec, WM8974_PLLK1, pll[i].k >> 18);
376 wm8974_write(codec, WM8974_PLLK2, (pll[i].k >> 9) & 0x1ff);
377 wm8974_write(codec, WM8974_PLLK3, pll[i].k & 0x1ff);
378 reg = wm8974_read_reg_cache(codec, WM8974_POWER1);
379 wm8974_write(codec, WM8974_POWER1, reg | 0x020);
380 return 0;
381 }
382 }
383 return -EINVAL;
384}
385
386/*
387 * Configure WM8974 clock dividers.
388 */
389static int wm8974_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
390 int div_id, int div)
391{
392 struct snd_soc_codec *codec = codec_dai->codec;
393 u16 reg;
394
395 switch (div_id) {
396 case WM8974_OPCLKDIV:
397 reg = wm8974_read_reg_cache(codec, WM8974_GPIO) & 0x1cf;
398 wm8974_write(codec, WM8974_GPIO, reg | div);
399 break;
400 case WM8974_MCLKDIV:
401 reg = wm8974_read_reg_cache(codec, WM8974_CLOCK) & 0x11f;
402 wm8974_write(codec, WM8974_CLOCK, reg | div);
403 break;
404 case WM8974_ADCCLK:
405 reg = wm8974_read_reg_cache(codec, WM8974_ADC) & 0x1f7;
406 wm8974_write(codec, WM8974_ADC, reg | div);
407 break;
408 case WM8974_DACCLK:
409 reg = wm8974_read_reg_cache(codec, WM8974_DAC) & 0x1f7;
410 wm8974_write(codec, WM8974_DAC, reg | div);
411 break;
412 case WM8974_BCLKDIV:
413 reg = wm8974_read_reg_cache(codec, WM8974_CLOCK) & 0x1e3;
414 wm8974_write(codec, WM8974_CLOCK, reg | div);
415 break;
416 default:
417 return -EINVAL;
418 }
419
420 return 0;
421}
422
423static int wm8974_set_dai_fmt(struct snd_soc_dai *codec_dai,
424 unsigned int fmt)
425{
426 struct snd_soc_codec *codec = codec_dai->codec;
427 u16 iface = 0;
428 u16 clk = wm8974_read_reg_cache(codec, WM8974_CLOCK) & 0x1fe;
429
430 /* set master/slave audio interface */
431 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
432 case SND_SOC_DAIFMT_CBM_CFM:
433 clk |= 0x0001;
434 break;
435 case SND_SOC_DAIFMT_CBS_CFS:
436 break;
437 default:
438 return -EINVAL;
439 }
440
441 /* interface format */
442 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
443 case SND_SOC_DAIFMT_I2S:
444 iface |= 0x0010;
445 break;
446 case SND_SOC_DAIFMT_RIGHT_J:
447 break;
448 case SND_SOC_DAIFMT_LEFT_J:
449 iface |= 0x0008;
450 break;
451 case SND_SOC_DAIFMT_DSP_A:
452 iface |= 0x00018;
453 break;
454 default:
455 return -EINVAL;
456 }
457
458 /* clock inversion */
459 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
460 case SND_SOC_DAIFMT_NB_NF:
461 break;
462 case SND_SOC_DAIFMT_IB_IF:
463 iface |= 0x0180;
464 break;
465 case SND_SOC_DAIFMT_IB_NF:
466 iface |= 0x0100;
467 break;
468 case SND_SOC_DAIFMT_NB_IF:
469 iface |= 0x0080;
470 break;
471 default:
472 return -EINVAL;
473 }
474
475 wm8974_write(codec, WM8974_IFACE, iface);
476 wm8974_write(codec, WM8974_CLOCK, clk);
477 return 0;
478}
479
480static int wm8974_pcm_hw_params(struct snd_pcm_substream *substream,
481 struct snd_pcm_hw_params *params,
482 struct snd_soc_dai *dai)
483{
484 struct snd_soc_codec *codec = dai->codec;
485 u16 iface = wm8974_read_reg_cache(codec, WM8974_IFACE) & 0x19f;
486 u16 adn = wm8974_read_reg_cache(codec, WM8974_ADD) & 0x1f1;
487
488 /* bit size */
489 switch (params_format(params)) {
490 case SNDRV_PCM_FORMAT_S16_LE:
491 break;
492 case SNDRV_PCM_FORMAT_S20_3LE:
493 iface |= 0x0020;
494 break;
495 case SNDRV_PCM_FORMAT_S24_LE:
496 iface |= 0x0040;
497 break;
498 case SNDRV_PCM_FORMAT_S32_LE:
499 iface |= 0x0060;
500 break;
501 }
502
503 /* filter coefficient */
504 switch (params_rate(params)) {
505 case SNDRV_PCM_RATE_8000:
506 adn |= 0x5 << 1;
507 break;
508 case SNDRV_PCM_RATE_11025:
509 adn |= 0x4 << 1;
510 break;
511 case SNDRV_PCM_RATE_16000:
512 adn |= 0x3 << 1;
513 break;
514 case SNDRV_PCM_RATE_22050:
515 adn |= 0x2 << 1;
516 break;
517 case SNDRV_PCM_RATE_32000:
518 adn |= 0x1 << 1;
519 break;
520 case SNDRV_PCM_RATE_44100:
521 break;
522 }
523
524 wm8974_write(codec, WM8974_IFACE, iface);
525 wm8974_write(codec, WM8974_ADD, adn);
526 return 0;
527}
528
529static int wm8974_mute(struct snd_soc_dai *dai, int mute)
530{
531 struct snd_soc_codec *codec = dai->codec;
532 u16 mute_reg = wm8974_read_reg_cache(codec, WM8974_DAC) & 0xffbf;
533
534 if(mute)
535 wm8974_write(codec, WM8974_DAC, mute_reg | 0x40);
536 else
537 wm8974_write(codec, WM8974_DAC, mute_reg);
538 return 0;
539}
540
541/* liam need to make this lower power with dapm */
542static int wm8974_set_bias_level(struct snd_soc_codec *codec,
543 enum snd_soc_bias_level level)
544{
545 switch (level) {
546 case SND_SOC_BIAS_ON:
547 wm8974_write(codec, WM8974_POWER1, 0x1ff);
548 wm8974_write(codec, WM8974_POWER2, 0x1ff);
549 wm8974_write(codec, WM8974_POWER3, 0x1ff);
550 break;
551 case SND_SOC_BIAS_PREPARE:
552 break;
553 case SND_SOC_BIAS_STANDBY:
554 break;
555 case SND_SOC_BIAS_OFF:
556 wm8974_write(codec, WM8974_POWER1, 0x0);
557 wm8974_write(codec, WM8974_POWER2, 0x0);
558 wm8974_write(codec, WM8974_POWER3, 0x0);
559 break;
560 }
561 codec->bias_level = level;
562 return 0;
563}
564
565#define WM8974_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
566 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
567 SNDRV_PCM_RATE_48000)
568
569#define WM8974_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
570 SNDRV_PCM_FMTBIT_S24_LE)
571
572static struct snd_soc_dai_ops wm8974_ops = {
573 .hw_params = wm8974_pcm_hw_params,
574 .digital_mute = wm8974_mute,
575 .set_fmt = wm8974_set_dai_fmt,
576 .set_clkdiv = wm8974_set_dai_clkdiv,
577 .set_pll = wm8974_set_dai_pll,
578};
579
580struct snd_soc_dai wm8974_dai = {
581 .name = "WM8974 HiFi",
582 .playback = {
583 .stream_name = "Playback",
584 .channels_min = 1,
585 .channels_max = 1,
586 .rates = WM8974_RATES,
587 .formats = WM8974_FORMATS,},
588 .capture = {
589 .stream_name = "Capture",
590 .channels_min = 1,
591 .channels_max = 1,
592 .rates = WM8974_RATES,
593 .formats = WM8974_FORMATS,},
594 .ops = &wm8974_ops,
595};
596EXPORT_SYMBOL_GPL(wm8974_dai);
597
598static int wm8974_suspend(struct platform_device *pdev, pm_message_t state)
599{
600 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
601 struct snd_soc_codec *codec = socdev->card->codec;
602
603 wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF);
604 return 0;
605}
606
607static int wm8974_resume(struct platform_device *pdev)
608{
609 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
610 struct snd_soc_codec *codec = socdev->card->codec;
611 int i;
612 u8 data[2];
613 u16 *cache = codec->reg_cache;
614
615 /* Sync reg_cache with the hardware */
616 for (i = 0; i < ARRAY_SIZE(wm8974_reg); i++) {
617 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
618 data[1] = cache[i] & 0x00ff;
619 codec->hw_write(codec->control_data, data, 2);
620 }
621 wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
622 wm8974_set_bias_level(codec, codec->suspend_bias_level);
623 return 0;
624}
625
626/*
627 * initialise the WM8974 driver
628 * register the mixer and dsp interfaces with the kernel
629 */
630static int wm8974_init(struct snd_soc_device *socdev)
631{
632 struct snd_soc_codec *codec = socdev->card->codec;
633 int ret = 0;
634
635 codec->name = "WM8974";
636 codec->owner = THIS_MODULE;
637 codec->read = wm8974_read_reg_cache;
638 codec->write = wm8974_write;
639 codec->set_bias_level = wm8974_set_bias_level;
640 codec->dai = &wm8974_dai;
641 codec->num_dai = 1;
642 codec->reg_cache_size = ARRAY_SIZE(wm8974_reg);
643 codec->reg_cache = kmemdup(wm8974_reg, sizeof(wm8974_reg), GFP_KERNEL);
644
645 if (codec->reg_cache == NULL)
646 return -ENOMEM;
647
648 wm8974_reset(codec);
649
650 /* register pcms */
651 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
652 if(ret < 0) {
653 printk(KERN_ERR "wm8974: failed to create pcms\n");
654 goto pcm_err;
655 }
656
657 /* power on device */
658 wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
659 wm8974_add_controls(codec);
660 wm8974_add_widgets(codec);
661 ret = snd_soc_init_card(socdev);
662 if (ret < 0) {
663 printk(KERN_ERR "wm8974: failed to register card\n");
664 goto card_err;
665 }
666 return ret;
667
668card_err:
669 snd_soc_free_pcms(socdev);
670 snd_soc_dapm_free(socdev);
671pcm_err:
672 kfree(codec->reg_cache);
673 return ret;
674}
675
676static struct snd_soc_device *wm8974_socdev;
677
678#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
679
680/*
681 * WM8974 2 wire address is 0x1a
682 */
683#define I2C_DRIVERID_WM8974 0xfefe /* liam - need a proper id */
684
685static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
686
687/* Magic definition of all other variables and things */
688I2C_CLIENT_INSMOD;
689
690static struct i2c_driver wm8974_i2c_driver;
691static struct i2c_client client_template;
692
693/* If the i2c layer weren't so broken, we could pass this kind of data
694 around */
695
696static int wm8974_codec_probe(struct i2c_adapter *adap, int addr, int kind)
697{
698 struct snd_soc_device *socdev = wm8974_socdev;
699 struct wm8974_setup_data *setup = socdev->codec_data;
700 struct snd_soc_codec *codec = socdev->card->codec;
701 struct i2c_client *i2c;
702 int ret;
703
704 if (addr != setup->i2c_address)
705 return -ENODEV;
706
707 client_template.adapter = adap;
708 client_template.addr = addr;
709
710 i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
711 if (i2c == NULL) {
712 kfree(codec);
713 return -ENOMEM;
714 }
715 i2c_set_clientdata(i2c, codec);
716 codec->control_data = i2c;
717
718 ret = i2c_attach_client(i2c);
719 if (ret < 0) {
720 pr_err("failed to attach codec at addr %x\n", addr);
721 goto err;
722 }
723
724 ret = wm8974_init(socdev);
725 if (ret < 0) {
726 pr_err("failed to initialise WM8974\n");
727 goto err;
728 }
729 return ret;
730
731err:
732 kfree(codec);
733 kfree(i2c);
734 return ret;
735}
736
737static int wm8974_i2c_detach(struct i2c_client *client)
738{
739 struct snd_soc_codec *codec = i2c_get_clientdata(client);
740 i2c_detach_client(client);
741 kfree(codec->reg_cache);
742 kfree(client);
743 return 0;
744}
745
746static int wm8974_i2c_attach(struct i2c_adapter *adap)
747{
748 return i2c_probe(adap, &addr_data, wm8974_codec_probe);
749}
750
751/* corgi i2c codec control layer */
752static struct i2c_driver wm8974_i2c_driver = {
753 .driver = {
754 .name = "WM8974 I2C Codec",
755 .owner = THIS_MODULE,
756 },
757 .id = I2C_DRIVERID_WM8974,
758 .attach_adapter = wm8974_i2c_attach,
759 .detach_client = wm8974_i2c_detach,
760 .command = NULL,
761};
762
763static struct i2c_client client_template = {
764 .name = "WM8974",
765 .driver = &wm8974_i2c_driver,
766};
767#endif
768
769static int wm8974_probe(struct platform_device *pdev)
770{
771 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
772 struct wm8974_setup_data *setup;
773 struct snd_soc_codec *codec;
774 int ret = 0;
775
776 pr_info("WM8974 Audio Codec %s", WM8974_VERSION);
777
778 setup = socdev->codec_data;
779 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
780 if (codec == NULL)
781 return -ENOMEM;
782
783 socdev->card->codec = codec;
784 mutex_init(&codec->mutex);
785 INIT_LIST_HEAD(&codec->dapm_widgets);
786 INIT_LIST_HEAD(&codec->dapm_paths);
787
788 wm8974_socdev = socdev;
789#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
790 if (setup->i2c_address) {
791 normal_i2c[0] = setup->i2c_address;
792 codec->hw_write = (hw_write_t)i2c_master_send;
793 ret = i2c_add_driver(&wm8974_i2c_driver);
794 if (ret != 0)
795 printk(KERN_ERR "can't add i2c driver");
796 }
797#else
798 /* Add other interfaces here */
799#endif
800 return ret;
801}
802
803/* power down chip */
804static int wm8974_remove(struct platform_device *pdev)
805{
806 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
807 struct snd_soc_codec *codec = socdev->card->codec;
808
809 if (codec->control_data)
810 wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF);
811
812 snd_soc_free_pcms(socdev);
813 snd_soc_dapm_free(socdev);
814#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
815 i2c_del_driver(&wm8974_i2c_driver);
816#endif
817 kfree(codec);
818
819 return 0;
820}
821
822struct snd_soc_codec_device soc_codec_dev_wm8974 = {
823 .probe = wm8974_probe,
824 .remove = wm8974_remove,
825 .suspend = wm8974_suspend,
826 .resume = wm8974_resume,
827};
828EXPORT_SYMBOL_GPL(soc_codec_dev_wm8974);
829
830static int __init wm8974_modinit(void)
831{
832 return snd_soc_register_dai(&wm8974_dai);
833}
834module_init(wm8974_modinit);
835
836static void __exit wm8974_exit(void)
837{
838 snd_soc_unregister_dai(&wm8974_dai);
839}
840module_exit(wm8974_exit);
841
842MODULE_DESCRIPTION("ASoC WM8974 driver");
843MODULE_AUTHOR("Liam Girdwood");
844MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/wm8974.h b/sound/soc/codecs/wm8974.h
new file mode 100644
index 000000000000..0f5172e0f616
--- /dev/null
+++ b/sound/soc/codecs/wm8974.h
@@ -0,0 +1,104 @@
1/*
2 * wm8974.h -- WM8974 Soc Audio driver
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef _WM8974_H
10#define _WM8974_H
11
12/* WM8974 register space */
13
14#define WM8974_RESET 0x0
15#define WM8974_POWER1 0x1
16#define WM8974_POWER2 0x2
17#define WM8974_POWER3 0x3
18#define WM8974_IFACE 0x4
19#define WM8974_COMP 0x5
20#define WM8974_CLOCK 0x6
21#define WM8974_ADD 0x7
22#define WM8974_GPIO 0x8
23#define WM8974_DAC 0xa
24#define WM8974_DACVOL 0xb
25#define WM8974_ADC 0xe
26#define WM8974_ADCVOL 0xf
27#define WM8974_EQ1 0x12
28#define WM8974_EQ2 0x13
29#define WM8974_EQ3 0x14
30#define WM8974_EQ4 0x15
31#define WM8974_EQ5 0x16
32#define WM8974_DACLIM1 0x18
33#define WM8974_DACLIM2 0x19
34#define WM8974_NOTCH1 0x1b
35#define WM8974_NOTCH2 0x1c
36#define WM8974_NOTCH3 0x1d
37#define WM8974_NOTCH4 0x1e
38#define WM8974_ALC1 0x20
39#define WM8974_ALC2 0x21
40#define WM8974_ALC3 0x22
41#define WM8974_NGATE 0x23
42#define WM8974_PLLN 0x24
43#define WM8974_PLLK1 0x25
44#define WM8974_PLLK2 0x26
45#define WM8974_PLLK3 0x27
46#define WM8974_ATTEN 0x28
47#define WM8974_INPUT 0x2c
48#define WM8974_INPPGA 0x2d
49#define WM8974_ADCBOOST 0x2f
50#define WM8974_OUTPUT 0x31
51#define WM8974_SPKMIX 0x32
52#define WM8974_SPKVOL 0x36
53#define WM8974_MONOMIX 0x38
54
55#define WM8974_CACHEREGNUM 57
56
57/* Clock divider Id's */
58#define WM8974_OPCLKDIV 0
59#define WM8974_MCLKDIV 1
60#define WM8974_ADCCLK 2
61#define WM8974_DACCLK 3
62#define WM8974_BCLKDIV 4
63
64/* DAC clock dividers */
65#define WM8974_DACCLK_F2 (1 << 3)
66#define WM8974_DACCLK_F4 (0 << 3)
67
68/* ADC clock dividers */
69#define WM8974_ADCCLK_F2 (1 << 3)
70#define WM8974_ADCCLK_F4 (0 << 3)
71
72/* PLL Out dividers */
73#define WM8974_OPCLKDIV_1 (0 << 4)
74#define WM8974_OPCLKDIV_2 (1 << 4)
75#define WM8974_OPCLKDIV_3 (2 << 4)
76#define WM8974_OPCLKDIV_4 (3 << 4)
77
78/* BCLK clock dividers */
79#define WM8974_BCLKDIV_1 (0 << 2)
80#define WM8974_BCLKDIV_2 (1 << 2)
81#define WM8974_BCLKDIV_4 (2 << 2)
82#define WM8974_BCLKDIV_8 (3 << 2)
83#define WM8974_BCLKDIV_16 (4 << 2)
84#define WM8974_BCLKDIV_32 (5 << 2)
85
86/* MCLK clock dividers */
87#define WM8974_MCLKDIV_1 (0 << 5)
88#define WM8974_MCLKDIV_1_5 (1 << 5)
89#define WM8974_MCLKDIV_2 (2 << 5)
90#define WM8974_MCLKDIV_3 (3 << 5)
91#define WM8974_MCLKDIV_4 (4 << 5)
92#define WM8974_MCLKDIV_6 (5 << 5)
93#define WM8974_MCLKDIV_8 (6 << 5)
94#define WM8974_MCLKDIV_12 (7 << 5)
95
96
97struct wm8974_setup_data {
98 unsigned short i2c_address;
99};
100
101extern struct snd_soc_dai wm8974_dai;
102extern struct snd_soc_codec_device soc_codec_dev_wm8974;
103
104#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-02 05:35:05 -0400