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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[deliverable/linux.git] / sound / soc / codecs / wm8753.c
1 /*
2 * wm8753.c -- WM8753 ALSA Soc Audio driver
3 *
4 * Copyright 2003 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * Notes:
13 * The WM8753 is a low power, high quality stereo codec with integrated PCM
14 * codec designed for portable digital telephony applications.
15 *
16 * Dual DAI:-
17 *
18 * This driver support 2 DAI PCM's. This makes the default PCM available for
19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
20 * voice.
21 *
22 * Please note that the voice PCM can be connected directly to a Bluetooth
23 * codec or GSM modem and thus cannot be read or written to, although it is
24 * available to be configured with snd_hw_params(), etc and kcontrols in the
25 * normal alsa manner.
26 *
27 * Fast DAI switching:-
28 *
29 * The driver can now fast switch between the DAI configurations via a
30 * an alsa kcontrol. This allows the PCM to remain open.
31 *
32 */
33
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/kernel.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
39 #include <linux/pm.h>
40 #include <linux/i2c.h>
41 #include <linux/platform_device.h>
42 #include <linux/spi/spi.h>
43 #include <sound/core.h>
44 #include <sound/pcm.h>
45 #include <sound/pcm_params.h>
46 #include <sound/soc.h>
47 #include <sound/soc-dapm.h>
48 #include <sound/initval.h>
49 #include <sound/tlv.h>
50 #include <asm/div64.h>
51
52 #include "wm8753.h"
53
54 #define WM8753_VERSION "0.16"
55
56 static int caps_charge = 2000;
57 module_param(caps_charge, int, 0);
58 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
59
60 static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
61 unsigned int mode);
62
63 /* codec private data */
64 struct wm8753_priv {
65 unsigned int sysclk;
66 unsigned int pcmclk;
67 };
68
69 /*
70 * wm8753 register cache
71 * We can't read the WM8753 register space when we
72 * are using 2 wire for device control, so we cache them instead.
73 */
74 static const u16 wm8753_reg[] = {
75 0x0008, 0x0000, 0x000a, 0x000a,
76 0x0033, 0x0000, 0x0007, 0x00ff,
77 0x00ff, 0x000f, 0x000f, 0x007b,
78 0x0000, 0x0032, 0x0000, 0x00c3,
79 0x00c3, 0x00c0, 0x0000, 0x0000,
80 0x0000, 0x0000, 0x0000, 0x0000,
81 0x0000, 0x0000, 0x0000, 0x0000,
82 0x0000, 0x0000, 0x0000, 0x0055,
83 0x0005, 0x0050, 0x0055, 0x0050,
84 0x0055, 0x0050, 0x0055, 0x0079,
85 0x0079, 0x0079, 0x0079, 0x0079,
86 0x0000, 0x0000, 0x0000, 0x0000,
87 0x0097, 0x0097, 0x0000, 0x0004,
88 0x0000, 0x0083, 0x0024, 0x01ba,
89 0x0000, 0x0083, 0x0024, 0x01ba,
90 0x0000, 0x0000
91 };
92
93 /*
94 * read wm8753 register cache
95 */
96 static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec,
97 unsigned int reg)
98 {
99 u16 *cache = codec->reg_cache;
100 if (reg < 1 || reg > (ARRAY_SIZE(wm8753_reg) + 1))
101 return -1;
102 return cache[reg - 1];
103 }
104
105 /*
106 * write wm8753 register cache
107 */
108 static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec,
109 unsigned int reg, unsigned int value)
110 {
111 u16 *cache = codec->reg_cache;
112 if (reg < 1 || reg > 0x3f)
113 return;
114 cache[reg - 1] = value;
115 }
116
117 /*
118 * write to the WM8753 register space
119 */
120 static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg,
121 unsigned int value)
122 {
123 u8 data[2];
124
125 /* data is
126 * D15..D9 WM8753 register offset
127 * D8...D0 register data
128 */
129 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
130 data[1] = value & 0x00ff;
131
132 wm8753_write_reg_cache(codec, reg, value);
133 if (codec->hw_write(codec->control_data, data, 2) == 2)
134 return 0;
135 else
136 return -EIO;
137 }
138
139 #define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0)
140
141 /*
142 * WM8753 Controls
143 */
144 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
145 static const char *wm8753_base_filter[] =
146 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
147 "100Hz @ 8kHz", "200Hz @ 8kHz"};
148 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
149 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
150 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
151 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
152 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
153 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
154 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
155 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
156 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
157 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
158 "Line 1", "Line 2"};
159 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
160 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
161 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
162 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
163 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
164 "Right PGA"};
165 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
166 "Left + Right"};
167 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
168 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
169 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
170 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
171 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
172 "Analogue Mix Right", "Digital Mono Mix"};
173 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
174 "82Hz @ 8kHz", "170Hz @ 8kHz"};
175 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
176 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
177 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
178 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
179 "Channel Swap"};
180 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
181
182 static const struct soc_enum wm8753_enum[] = {
183 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
184 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
185 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
186 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
187 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
188 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
189 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
190 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
191 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
192 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
193 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
194 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
195 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
196 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
197 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
198 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
199 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
200 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
201 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
202 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
203 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
204 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
205 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
206 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
207 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
208 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
209 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
210 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
211 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
212 };
213
214
215 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
216 struct snd_ctl_elem_value *ucontrol)
217 {
218 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
219 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
220
221 ucontrol->value.integer.value[0] = (mode & 0xc) >> 2;
222 return 0;
223 }
224
225 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
226 struct snd_ctl_elem_value *ucontrol)
227 {
228 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
229 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
230
231 if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0])
232 return 0;
233
234 mode &= 0xfff3;
235 mode |= (ucontrol->value.integer.value[0] << 2);
236
237 wm8753_write(codec, WM8753_IOCTL, mode);
238 wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]);
239 return 1;
240 }
241
242 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
243 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
244 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
245 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
246 static const unsigned int out_tlv[] = {
247 TLV_DB_RANGE_HEAD(2),
248 /* 0000000 - 0101111 = "Analogue mute" */
249 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
250 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
251 };
252 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
253 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
254 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
255
256 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
257 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
258
259 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
260 adc_tlv),
261
262 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
263 0, 127, 0, out_tlv),
264 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
265 127, 0, out_tlv),
266
267 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
268
269 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
270 1, mix_tlv),
271 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
272 7, 1, mix_tlv),
273 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
274 1, voice_mix_tlv),
275
276 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
277 1, 0),
278 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
279 1, 0),
280
281 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
282 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
283 mix_tlv),
284 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
285 voice_mix_tlv),
286 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
287
288 SOC_ENUM("Bass Boost", wm8753_enum[0]),
289 SOC_ENUM("Bass Filter", wm8753_enum[1]),
290 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
291
292 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
293 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
294
295 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
296 rec_mix_tlv),
297 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
298 rec_mix_tlv),
299
300 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
301 pga_tlv),
302 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
303 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
304
305 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
306 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
307 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
308
309 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
310 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
311 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
312 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
313 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
314 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
315 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
316 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
317 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
318 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
319
320 SOC_ENUM("3D Function", wm8753_enum[5]),
321 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
322 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
323 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
324 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
325
326 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
327 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
328
329 SOC_ENUM("De-emphasis", wm8753_enum[8]),
330 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
331 SOC_ENUM("Playback Phase", wm8753_enum[10]),
332
333 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
334 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
335
336 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
337
338 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
339 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
340 };
341
342 /* add non dapm controls */
343 static int wm8753_add_controls(struct snd_soc_codec *codec)
344 {
345 int err, i;
346
347 for (i = 0; i < ARRAY_SIZE(wm8753_snd_controls); i++) {
348 err = snd_ctl_add(codec->card,
349 snd_soc_cnew(&wm8753_snd_controls[i],
350 codec, NULL));
351 if (err < 0)
352 return err;
353 }
354 return 0;
355 }
356
357 /*
358 * _DAPM_ Controls
359 */
360
361 /* Left Mixer */
362 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
363 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
364 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
365 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
366 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
367 };
368
369 /* Right mixer */
370 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
371 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
372 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
373 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
374 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
375 };
376
377 /* Mono mixer */
378 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
379 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
380 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
381 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
382 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
383 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
384 };
385
386 /* Mono 2 Mux */
387 static const struct snd_kcontrol_new wm8753_mono2_controls =
388 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
389
390 /* Out 3 Mux */
391 static const struct snd_kcontrol_new wm8753_out3_controls =
392 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
393
394 /* Out 4 Mux */
395 static const struct snd_kcontrol_new wm8753_out4_controls =
396 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
397
398 /* ADC Mono Mix */
399 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
400 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
401
402 /* Record mixer */
403 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
404 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
405 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
406 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
407 };
408
409 /* Left ADC mux */
410 static const struct snd_kcontrol_new wm8753_adc_left_controls =
411 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
412
413 /* Right ADC mux */
414 static const struct snd_kcontrol_new wm8753_adc_right_controls =
415 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
416
417 /* MIC mux */
418 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
419 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
420
421 /* ALC mixer */
422 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
423 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
424 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
425 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
426 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
427 };
428
429 /* Left Line mux */
430 static const struct snd_kcontrol_new wm8753_line_left_controls =
431 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
432
433 /* Right Line mux */
434 static const struct snd_kcontrol_new wm8753_line_right_controls =
435 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
436
437 /* Mono Line mux */
438 static const struct snd_kcontrol_new wm8753_line_mono_controls =
439 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
440
441 /* Line mux and mixer */
442 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
443 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
444
445 /* Rx mux and mixer */
446 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
447 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
448
449 /* Mic Selector Mux */
450 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
451 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
452
453 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
454 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
455 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
456 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
457 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
458 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
459 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
460 SND_SOC_DAPM_OUTPUT("LOUT1"),
461 SND_SOC_DAPM_OUTPUT("LOUT2"),
462 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
463 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
464 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
465 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
466 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
467 SND_SOC_DAPM_OUTPUT("ROUT1"),
468 SND_SOC_DAPM_OUTPUT("ROUT2"),
469 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
470 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
471 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
472 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
473 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
474 SND_SOC_DAPM_OUTPUT("MONO1"),
475 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
476 SND_SOC_DAPM_OUTPUT("MONO2"),
477 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
478 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
479 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
480 SND_SOC_DAPM_OUTPUT("OUT3"),
481 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
482 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
483 SND_SOC_DAPM_OUTPUT("OUT4"),
484 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
485 &wm8753_record_mixer_controls[0],
486 ARRAY_SIZE(wm8753_record_mixer_controls)),
487 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
488 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
489 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
490 &wm8753_adc_mono_controls),
491 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
492 &wm8753_adc_mono_controls),
493 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
494 &wm8753_adc_left_controls),
495 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
496 &wm8753_adc_right_controls),
497 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
498 &wm8753_mic_mux_controls),
499 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
500 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
501 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
502 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
503 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
504 &wm8753_line_left_controls),
505 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
506 &wm8753_line_right_controls),
507 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
508 &wm8753_line_mono_controls),
509 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
510 &wm8753_line_mux_mix_controls),
511 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
512 &wm8753_rx_mux_mix_controls),
513 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
514 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
515 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
516 &wm8753_mic_sel_mux_controls),
517 SND_SOC_DAPM_INPUT("LINE1"),
518 SND_SOC_DAPM_INPUT("LINE2"),
519 SND_SOC_DAPM_INPUT("RXP"),
520 SND_SOC_DAPM_INPUT("RXN"),
521 SND_SOC_DAPM_INPUT("ACIN"),
522 SND_SOC_DAPM_OUTPUT("ACOP"),
523 SND_SOC_DAPM_INPUT("MIC1N"),
524 SND_SOC_DAPM_INPUT("MIC1"),
525 SND_SOC_DAPM_INPUT("MIC2N"),
526 SND_SOC_DAPM_INPUT("MIC2"),
527 SND_SOC_DAPM_VMID("VREF"),
528 };
529
530 static const struct snd_soc_dapm_route audio_map[] = {
531 /* left mixer */
532 {"Left Mixer", "Left Playback Switch", "Left DAC"},
533 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
534 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
535 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
536
537 /* right mixer */
538 {"Right Mixer", "Right Playback Switch", "Right DAC"},
539 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
540 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
541 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
542
543 /* mono mixer */
544 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
545 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
546 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
547 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
548 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
549
550 /* left out */
551 {"Left Out 1", NULL, "Left Mixer"},
552 {"Left Out 2", NULL, "Left Mixer"},
553 {"LOUT1", NULL, "Left Out 1"},
554 {"LOUT2", NULL, "Left Out 2"},
555
556 /* right out */
557 {"Right Out 1", NULL, "Right Mixer"},
558 {"Right Out 2", NULL, "Right Mixer"},
559 {"ROUT1", NULL, "Right Out 1"},
560 {"ROUT2", NULL, "Right Out 2"},
561
562 /* mono 1 out */
563 {"Mono Out 1", NULL, "Mono Mixer"},
564 {"MONO1", NULL, "Mono Out 1"},
565
566 /* mono 2 out */
567 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
568 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
569 {"Mono 2 Mux", "Left", "Left Mixer"},
570 {"Mono 2 Mux", "Right", "Right Mixer"},
571 {"Mono Out 2", NULL, "Mono 2 Mux"},
572 {"MONO2", NULL, "Mono Out 2"},
573
574 /* out 3 */
575 {"Out3 Left + Right", NULL, "Left Mixer"},
576 {"Out3 Left + Right", NULL, "Right Mixer"},
577 {"Out3 Mux", "VREF", "VREF"},
578 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
579 {"Out3 Mux", "ROUT2", "ROUT2"},
580 {"Out 3", NULL, "Out3 Mux"},
581 {"OUT3", NULL, "Out 3"},
582
583 /* out 4 */
584 {"Out4 Mux", "VREF", "VREF"},
585 {"Out4 Mux", "Capture ST", "Playback Mixer"},
586 {"Out4 Mux", "LOUT2", "LOUT2"},
587 {"Out 4", NULL, "Out4 Mux"},
588 {"OUT4", NULL, "Out 4"},
589
590 /* record mixer */
591 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
592 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
593 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
594
595 /* Mic/SideTone Mux */
596 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
597 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
598 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
599 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
600
601 /* Capture Left Mux */
602 {"Capture Left Mux", "PGA", "Left Capture Volume"},
603 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
604 {"Capture Left Mux", "Line", "LINE1"},
605
606 /* Capture Right Mux */
607 {"Capture Right Mux", "PGA", "Right Capture Volume"},
608 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
609 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
610
611 /* Mono Capture mixer-mux */
612 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
613 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
614 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
615 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
616 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
617 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
618 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
619 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
620 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
621
622 /* ADC */
623 {"Left ADC", NULL, "Capture Left Mixer"},
624 {"Right ADC", NULL, "Capture Right Mixer"},
625
626 /* Left Capture Volume */
627 {"Left Capture Volume", NULL, "ACIN"},
628
629 /* Right Capture Volume */
630 {"Right Capture Volume", NULL, "Mic 2 Volume"},
631
632 /* ALC Mixer */
633 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
634 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
635 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
636 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
637
638 /* Line Left Mux */
639 {"Line Left Mux", "Line 1", "LINE1"},
640 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
641
642 /* Line Right Mux */
643 {"Line Right Mux", "Line 2", "LINE2"},
644 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
645
646 /* Line Mono Mux */
647 {"Line Mono Mux", "Line Mix", "Line Mixer"},
648 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
649
650 /* Line Mixer/Mux */
651 {"Line Mixer", "Line 1 + 2", "LINE1"},
652 {"Line Mixer", "Line 1 - 2", "LINE1"},
653 {"Line Mixer", "Line 1 + 2", "LINE2"},
654 {"Line Mixer", "Line 1 - 2", "LINE2"},
655 {"Line Mixer", "Line 1", "LINE1"},
656 {"Line Mixer", "Line 2", "LINE2"},
657
658 /* Rx Mixer/Mux */
659 {"Rx Mixer", "RXP - RXN", "RXP"},
660 {"Rx Mixer", "RXP + RXN", "RXP"},
661 {"Rx Mixer", "RXP - RXN", "RXN"},
662 {"Rx Mixer", "RXP + RXN", "RXN"},
663 {"Rx Mixer", "RXP", "RXP"},
664 {"Rx Mixer", "RXN", "RXN"},
665
666 /* Mic 1 Volume */
667 {"Mic 1 Volume", NULL, "MIC1N"},
668 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
669
670 /* Mic 2 Volume */
671 {"Mic 2 Volume", NULL, "MIC2N"},
672 {"Mic 2 Volume", NULL, "MIC2"},
673
674 /* Mic Selector Mux */
675 {"Mic Selection Mux", "Mic 1", "MIC1"},
676 {"Mic Selection Mux", "Mic 2", "MIC2N"},
677 {"Mic Selection Mux", "Mic 3", "MIC2"},
678
679 /* ACOP */
680 {"ACOP", NULL, "ALC Mixer"},
681 };
682
683 static int wm8753_add_widgets(struct snd_soc_codec *codec)
684 {
685 snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
686 ARRAY_SIZE(wm8753_dapm_widgets));
687
688 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
689
690 snd_soc_dapm_new_widgets(codec);
691 return 0;
692 }
693
694 /* PLL divisors */
695 struct _pll_div {
696 u32 div2:1;
697 u32 n:4;
698 u32 k:24;
699 };
700
701 /* The size in bits of the pll divide multiplied by 10
702 * to allow rounding later */
703 #define FIXED_PLL_SIZE ((1 << 22) * 10)
704
705 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
706 unsigned int source)
707 {
708 u64 Kpart;
709 unsigned int K, Ndiv, Nmod;
710
711 Ndiv = target / source;
712 if (Ndiv < 6) {
713 source >>= 1;
714 pll_div->div2 = 1;
715 Ndiv = target / source;
716 } else
717 pll_div->div2 = 0;
718
719 if ((Ndiv < 6) || (Ndiv > 12))
720 printk(KERN_WARNING
721 "wm8753: unsupported N = %d\n", Ndiv);
722
723 pll_div->n = Ndiv;
724 Nmod = target % source;
725 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
726
727 do_div(Kpart, source);
728
729 K = Kpart & 0xFFFFFFFF;
730
731 /* Check if we need to round */
732 if ((K % 10) >= 5)
733 K += 5;
734
735 /* Move down to proper range now rounding is done */
736 K /= 10;
737
738 pll_div->k = K;
739 }
740
741 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai,
742 int pll_id, unsigned int freq_in, unsigned int freq_out)
743 {
744 u16 reg, enable;
745 int offset;
746 struct snd_soc_codec *codec = codec_dai->codec;
747
748 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
749 return -ENODEV;
750
751 if (pll_id == WM8753_PLL1) {
752 offset = 0;
753 enable = 0x10;
754 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef;
755 } else {
756 offset = 4;
757 enable = 0x8;
758 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7;
759 }
760
761 if (!freq_in || !freq_out) {
762 /* disable PLL */
763 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
764 wm8753_write(codec, WM8753_CLOCK, reg);
765 return 0;
766 } else {
767 u16 value = 0;
768 struct _pll_div pll_div;
769
770 pll_factors(&pll_div, freq_out * 8, freq_in);
771
772 /* set up N and K PLL divisor ratios */
773 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
774 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
775 wm8753_write(codec, WM8753_PLL1CTL2 + offset, value);
776
777 /* bits 8:0 = PLL_K[17:9] */
778 value = (pll_div.k & 0x03fe00) >> 9;
779 wm8753_write(codec, WM8753_PLL1CTL3 + offset, value);
780
781 /* bits 8:0 = PLL_K[8:0] */
782 value = pll_div.k & 0x0001ff;
783 wm8753_write(codec, WM8753_PLL1CTL4 + offset, value);
784
785 /* set PLL as input and enable */
786 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
787 (pll_div.div2 << 3));
788 wm8753_write(codec, WM8753_CLOCK, reg | enable);
789 }
790 return 0;
791 }
792
793 struct _coeff_div {
794 u32 mclk;
795 u32 rate;
796 u8 sr:5;
797 u8 usb:1;
798 };
799
800 /* codec hifi mclk (after PLL) clock divider coefficients */
801 static const struct _coeff_div coeff_div[] = {
802 /* 8k */
803 {12288000, 8000, 0x6, 0x0},
804 {11289600, 8000, 0x16, 0x0},
805 {18432000, 8000, 0x7, 0x0},
806 {16934400, 8000, 0x17, 0x0},
807 {12000000, 8000, 0x6, 0x1},
808
809 /* 11.025k */
810 {11289600, 11025, 0x18, 0x0},
811 {16934400, 11025, 0x19, 0x0},
812 {12000000, 11025, 0x19, 0x1},
813
814 /* 16k */
815 {12288000, 16000, 0xa, 0x0},
816 {18432000, 16000, 0xb, 0x0},
817 {12000000, 16000, 0xa, 0x1},
818
819 /* 22.05k */
820 {11289600, 22050, 0x1a, 0x0},
821 {16934400, 22050, 0x1b, 0x0},
822 {12000000, 22050, 0x1b, 0x1},
823
824 /* 32k */
825 {12288000, 32000, 0xc, 0x0},
826 {18432000, 32000, 0xd, 0x0},
827 {12000000, 32000, 0xa, 0x1},
828
829 /* 44.1k */
830 {11289600, 44100, 0x10, 0x0},
831 {16934400, 44100, 0x11, 0x0},
832 {12000000, 44100, 0x11, 0x1},
833
834 /* 48k */
835 {12288000, 48000, 0x0, 0x0},
836 {18432000, 48000, 0x1, 0x0},
837 {12000000, 48000, 0x0, 0x1},
838
839 /* 88.2k */
840 {11289600, 88200, 0x1e, 0x0},
841 {16934400, 88200, 0x1f, 0x0},
842 {12000000, 88200, 0x1f, 0x1},
843
844 /* 96k */
845 {12288000, 96000, 0xe, 0x0},
846 {18432000, 96000, 0xf, 0x0},
847 {12000000, 96000, 0xe, 0x1},
848 };
849
850 static int get_coeff(int mclk, int rate)
851 {
852 int i;
853
854 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
855 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
856 return i;
857 }
858 return -EINVAL;
859 }
860
861 /*
862 * Clock after PLL and dividers
863 */
864 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
865 int clk_id, unsigned int freq, int dir)
866 {
867 struct snd_soc_codec *codec = codec_dai->codec;
868 struct wm8753_priv *wm8753 = codec->private_data;
869
870 switch (freq) {
871 case 11289600:
872 case 12000000:
873 case 12288000:
874 case 16934400:
875 case 18432000:
876 if (clk_id == WM8753_MCLK) {
877 wm8753->sysclk = freq;
878 return 0;
879 } else if (clk_id == WM8753_PCMCLK) {
880 wm8753->pcmclk = freq;
881 return 0;
882 }
883 break;
884 }
885 return -EINVAL;
886 }
887
888 /*
889 * Set's ADC and Voice DAC format.
890 */
891 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
892 unsigned int fmt)
893 {
894 struct snd_soc_codec *codec = codec_dai->codec;
895 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec;
896
897 /* interface format */
898 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
899 case SND_SOC_DAIFMT_I2S:
900 voice |= 0x0002;
901 break;
902 case SND_SOC_DAIFMT_RIGHT_J:
903 break;
904 case SND_SOC_DAIFMT_LEFT_J:
905 voice |= 0x0001;
906 break;
907 case SND_SOC_DAIFMT_DSP_A:
908 voice |= 0x0003;
909 break;
910 case SND_SOC_DAIFMT_DSP_B:
911 voice |= 0x0013;
912 break;
913 default:
914 return -EINVAL;
915 }
916
917 wm8753_write(codec, WM8753_PCM, voice);
918 return 0;
919 }
920
921 /*
922 * Set PCM DAI bit size and sample rate.
923 */
924 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
925 struct snd_pcm_hw_params *params)
926 {
927 struct snd_soc_pcm_runtime *rtd = substream->private_data;
928 struct snd_soc_device *socdev = rtd->socdev;
929 struct snd_soc_codec *codec = socdev->codec;
930 struct wm8753_priv *wm8753 = codec->private_data;
931 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
932 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
933
934 /* bit size */
935 switch (params_format(params)) {
936 case SNDRV_PCM_FORMAT_S16_LE:
937 break;
938 case SNDRV_PCM_FORMAT_S20_3LE:
939 voice |= 0x0004;
940 break;
941 case SNDRV_PCM_FORMAT_S24_LE:
942 voice |= 0x0008;
943 break;
944 case SNDRV_PCM_FORMAT_S32_LE:
945 voice |= 0x000c;
946 break;
947 }
948
949 /* sample rate */
950 if (params_rate(params) * 384 == wm8753->pcmclk)
951 srate |= 0x80;
952 wm8753_write(codec, WM8753_SRATE1, srate);
953
954 wm8753_write(codec, WM8753_PCM, voice);
955 return 0;
956 }
957
958 /*
959 * Set's PCM dai fmt and BCLK.
960 */
961 static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai,
962 unsigned int fmt)
963 {
964 struct snd_soc_codec *codec = codec_dai->codec;
965 u16 voice, ioctl;
966
967 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f;
968 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d;
969
970 /* set master/slave audio interface */
971 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
972 case SND_SOC_DAIFMT_CBS_CFS:
973 break;
974 case SND_SOC_DAIFMT_CBM_CFM:
975 ioctl |= 0x2;
976 case SND_SOC_DAIFMT_CBM_CFS:
977 voice |= 0x0040;
978 break;
979 default:
980 return -EINVAL;
981 }
982
983 /* clock inversion */
984 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
985 case SND_SOC_DAIFMT_DSP_A:
986 case SND_SOC_DAIFMT_DSP_B:
987 /* frame inversion not valid for DSP modes */
988 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
989 case SND_SOC_DAIFMT_NB_NF:
990 break;
991 case SND_SOC_DAIFMT_IB_NF:
992 voice |= 0x0080;
993 break;
994 default:
995 return -EINVAL;
996 }
997 break;
998 case SND_SOC_DAIFMT_I2S:
999 case SND_SOC_DAIFMT_RIGHT_J:
1000 case SND_SOC_DAIFMT_LEFT_J:
1001 voice &= ~0x0010;
1002 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1003 case SND_SOC_DAIFMT_NB_NF:
1004 break;
1005 case SND_SOC_DAIFMT_IB_IF:
1006 voice |= 0x0090;
1007 break;
1008 case SND_SOC_DAIFMT_IB_NF:
1009 voice |= 0x0080;
1010 break;
1011 case SND_SOC_DAIFMT_NB_IF:
1012 voice |= 0x0010;
1013 break;
1014 default:
1015 return -EINVAL;
1016 }
1017 break;
1018 default:
1019 return -EINVAL;
1020 }
1021
1022 wm8753_write(codec, WM8753_PCM, voice);
1023 wm8753_write(codec, WM8753_IOCTL, ioctl);
1024 return 0;
1025 }
1026
1027 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1028 int div_id, int div)
1029 {
1030 struct snd_soc_codec *codec = codec_dai->codec;
1031 u16 reg;
1032
1033 switch (div_id) {
1034 case WM8753_PCMDIV:
1035 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f;
1036 wm8753_write(codec, WM8753_CLOCK, reg | div);
1037 break;
1038 case WM8753_BCLKDIV:
1039 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7;
1040 wm8753_write(codec, WM8753_SRATE2, reg | div);
1041 break;
1042 case WM8753_VXCLKDIV:
1043 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f;
1044 wm8753_write(codec, WM8753_SRATE2, reg | div);
1045 break;
1046 default:
1047 return -EINVAL;
1048 }
1049 return 0;
1050 }
1051
1052 /*
1053 * Set's HiFi DAC format.
1054 */
1055 static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai *codec_dai,
1056 unsigned int fmt)
1057 {
1058 struct snd_soc_codec *codec = codec_dai->codec;
1059 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0;
1060
1061 /* interface format */
1062 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1063 case SND_SOC_DAIFMT_I2S:
1064 hifi |= 0x0002;
1065 break;
1066 case SND_SOC_DAIFMT_RIGHT_J:
1067 break;
1068 case SND_SOC_DAIFMT_LEFT_J:
1069 hifi |= 0x0001;
1070 break;
1071 case SND_SOC_DAIFMT_DSP_A:
1072 hifi |= 0x0003;
1073 break;
1074 case SND_SOC_DAIFMT_DSP_B:
1075 hifi |= 0x0013;
1076 break;
1077 default:
1078 return -EINVAL;
1079 }
1080
1081 wm8753_write(codec, WM8753_HIFI, hifi);
1082 return 0;
1083 }
1084
1085 /*
1086 * Set's I2S DAI format.
1087 */
1088 static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
1089 unsigned int fmt)
1090 {
1091 struct snd_soc_codec *codec = codec_dai->codec;
1092 u16 ioctl, hifi;
1093
1094 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f;
1095 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae;
1096
1097 /* set master/slave audio interface */
1098 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1099 case SND_SOC_DAIFMT_CBS_CFS:
1100 break;
1101 case SND_SOC_DAIFMT_CBM_CFM:
1102 ioctl |= 0x1;
1103 case SND_SOC_DAIFMT_CBM_CFS:
1104 hifi |= 0x0040;
1105 break;
1106 default:
1107 return -EINVAL;
1108 }
1109
1110 /* clock inversion */
1111 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1112 case SND_SOC_DAIFMT_DSP_A:
1113 case SND_SOC_DAIFMT_DSP_B:
1114 /* frame inversion not valid for DSP modes */
1115 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1116 case SND_SOC_DAIFMT_NB_NF:
1117 break;
1118 case SND_SOC_DAIFMT_IB_NF:
1119 hifi |= 0x0080;
1120 break;
1121 default:
1122 return -EINVAL;
1123 }
1124 break;
1125 case SND_SOC_DAIFMT_I2S:
1126 case SND_SOC_DAIFMT_RIGHT_J:
1127 case SND_SOC_DAIFMT_LEFT_J:
1128 hifi &= ~0x0010;
1129 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1130 case SND_SOC_DAIFMT_NB_NF:
1131 break;
1132 case SND_SOC_DAIFMT_IB_IF:
1133 hifi |= 0x0090;
1134 break;
1135 case SND_SOC_DAIFMT_IB_NF:
1136 hifi |= 0x0080;
1137 break;
1138 case SND_SOC_DAIFMT_NB_IF:
1139 hifi |= 0x0010;
1140 break;
1141 default:
1142 return -EINVAL;
1143 }
1144 break;
1145 default:
1146 return -EINVAL;
1147 }
1148
1149 wm8753_write(codec, WM8753_HIFI, hifi);
1150 wm8753_write(codec, WM8753_IOCTL, ioctl);
1151 return 0;
1152 }
1153
1154 /*
1155 * Set PCM DAI bit size and sample rate.
1156 */
1157 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1158 struct snd_pcm_hw_params *params)
1159 {
1160 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1161 struct snd_soc_device *socdev = rtd->socdev;
1162 struct snd_soc_codec *codec = socdev->codec;
1163 struct wm8753_priv *wm8753 = codec->private_data;
1164 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
1165 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
1166 int coeff;
1167
1168 /* is digital filter coefficient valid ? */
1169 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1170 if (coeff < 0) {
1171 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1172 return coeff;
1173 }
1174 wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1175 coeff_div[coeff].usb);
1176
1177 /* bit size */
1178 switch (params_format(params)) {
1179 case SNDRV_PCM_FORMAT_S16_LE:
1180 break;
1181 case SNDRV_PCM_FORMAT_S20_3LE:
1182 hifi |= 0x0004;
1183 break;
1184 case SNDRV_PCM_FORMAT_S24_LE:
1185 hifi |= 0x0008;
1186 break;
1187 case SNDRV_PCM_FORMAT_S32_LE:
1188 hifi |= 0x000c;
1189 break;
1190 }
1191
1192 wm8753_write(codec, WM8753_HIFI, hifi);
1193 return 0;
1194 }
1195
1196 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai *codec_dai,
1197 unsigned int fmt)
1198 {
1199 struct snd_soc_codec *codec = codec_dai->codec;
1200 u16 clock;
1201
1202 /* set clk source as pcmclk */
1203 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1204 wm8753_write(codec, WM8753_CLOCK, clock);
1205
1206 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1207 return -EINVAL;
1208 return wm8753_pcm_set_dai_fmt(codec_dai, fmt);
1209 }
1210
1211 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai *codec_dai,
1212 unsigned int fmt)
1213 {
1214 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1215 return -EINVAL;
1216 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1217 }
1218
1219 static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai *codec_dai,
1220 unsigned int fmt)
1221 {
1222 struct snd_soc_codec *codec = codec_dai->codec;
1223 u16 clock;
1224
1225 /* set clk source as pcmclk */
1226 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1227 wm8753_write(codec, WM8753_CLOCK, clock);
1228
1229 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1230 return -EINVAL;
1231 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1232 }
1233
1234 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai *codec_dai,
1235 unsigned int fmt)
1236 {
1237 struct snd_soc_codec *codec = codec_dai->codec;
1238 u16 clock;
1239
1240 /* set clk source as mclk */
1241 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1242 wm8753_write(codec, WM8753_CLOCK, clock | 0x4);
1243
1244 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1245 return -EINVAL;
1246 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1247 return -EINVAL;
1248 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1249 }
1250
1251 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1252 {
1253 struct snd_soc_codec *codec = dai->codec;
1254 u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
1255
1256 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1257 * make sure we check if they are not both active when we mute */
1258 if (mute && dai->id == 1) {
1259 if (!wm8753_dai[WM8753_DAI_VOICE].playback.active ||
1260 !wm8753_dai[WM8753_DAI_HIFI].playback.active)
1261 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1262 } else {
1263 if (mute)
1264 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1265 else
1266 wm8753_write(codec, WM8753_DAC, mute_reg);
1267 }
1268
1269 return 0;
1270 }
1271
1272 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1273 enum snd_soc_bias_level level)
1274 {
1275 u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
1276
1277 switch (level) {
1278 case SND_SOC_BIAS_ON:
1279 /* set vmid to 50k and unmute dac */
1280 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1281 break;
1282 case SND_SOC_BIAS_PREPARE:
1283 /* set vmid to 5k for quick power up */
1284 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1285 break;
1286 case SND_SOC_BIAS_STANDBY:
1287 /* mute dac and set vmid to 500k, enable VREF */
1288 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1289 break;
1290 case SND_SOC_BIAS_OFF:
1291 wm8753_write(codec, WM8753_PWR1, 0x0001);
1292 break;
1293 }
1294 codec->bias_level = level;
1295 return 0;
1296 }
1297
1298 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1299 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1300 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1301 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1302
1303 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1304 SNDRV_PCM_FMTBIT_S24_LE)
1305
1306 /*
1307 * The WM8753 supports upto 4 different and mutually exclusive DAI
1308 * configurations. This gives 2 PCM's available for use, hifi and voice.
1309 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1310 * is connected between the wm8753 and a BT codec or GSM modem.
1311 *
1312 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1313 * 2. Voice over HIFI DAI - HIFI disabled
1314 * 3. Voice disabled - HIFI over HIFI
1315 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1316 */
1317 static const struct snd_soc_dai wm8753_all_dai[] = {
1318 /* DAI HiFi mode 1 */
1319 { .name = "WM8753 HiFi",
1320 .id = 1,
1321 .playback = {
1322 .stream_name = "HiFi Playback",
1323 .channels_min = 1,
1324 .channels_max = 2,
1325 .rates = WM8753_RATES,
1326 .formats = WM8753_FORMATS,},
1327 .capture = { /* dummy for fast DAI switching */
1328 .stream_name = "Capture",
1329 .channels_min = 1,
1330 .channels_max = 2,
1331 .rates = WM8753_RATES,
1332 .formats = WM8753_FORMATS,},
1333 .ops = {
1334 .hw_params = wm8753_i2s_hw_params,},
1335 .dai_ops = {
1336 .digital_mute = wm8753_mute,
1337 .set_fmt = wm8753_mode1h_set_dai_fmt,
1338 .set_clkdiv = wm8753_set_dai_clkdiv,
1339 .set_pll = wm8753_set_dai_pll,
1340 .set_sysclk = wm8753_set_dai_sysclk,
1341 },
1342 },
1343 /* DAI Voice mode 1 */
1344 { .name = "WM8753 Voice",
1345 .id = 1,
1346 .playback = {
1347 .stream_name = "Voice Playback",
1348 .channels_min = 1,
1349 .channels_max = 1,
1350 .rates = WM8753_RATES,
1351 .formats = WM8753_FORMATS,},
1352 .capture = {
1353 .stream_name = "Capture",
1354 .channels_min = 1,
1355 .channels_max = 2,
1356 .rates = WM8753_RATES,
1357 .formats = WM8753_FORMATS,},
1358 .ops = {
1359 .hw_params = wm8753_pcm_hw_params,},
1360 .dai_ops = {
1361 .digital_mute = wm8753_mute,
1362 .set_fmt = wm8753_mode1v_set_dai_fmt,
1363 .set_clkdiv = wm8753_set_dai_clkdiv,
1364 .set_pll = wm8753_set_dai_pll,
1365 .set_sysclk = wm8753_set_dai_sysclk,
1366 },
1367 },
1368 /* DAI HiFi mode 2 - dummy */
1369 { .name = "WM8753 HiFi",
1370 .id = 2,
1371 },
1372 /* DAI Voice mode 2 */
1373 { .name = "WM8753 Voice",
1374 .id = 2,
1375 .playback = {
1376 .stream_name = "Voice Playback",
1377 .channels_min = 1,
1378 .channels_max = 1,
1379 .rates = WM8753_RATES,
1380 .formats = WM8753_FORMATS,},
1381 .capture = {
1382 .stream_name = "Capture",
1383 .channels_min = 1,
1384 .channels_max = 2,
1385 .rates = WM8753_RATES,
1386 .formats = WM8753_FORMATS,},
1387 .ops = {
1388 .hw_params = wm8753_pcm_hw_params,},
1389 .dai_ops = {
1390 .digital_mute = wm8753_mute,
1391 .set_fmt = wm8753_mode2_set_dai_fmt,
1392 .set_clkdiv = wm8753_set_dai_clkdiv,
1393 .set_pll = wm8753_set_dai_pll,
1394 .set_sysclk = wm8753_set_dai_sysclk,
1395 },
1396 },
1397 /* DAI HiFi mode 3 */
1398 { .name = "WM8753 HiFi",
1399 .id = 3,
1400 .playback = {
1401 .stream_name = "HiFi Playback",
1402 .channels_min = 1,
1403 .channels_max = 2,
1404 .rates = WM8753_RATES,
1405 .formats = WM8753_FORMATS,},
1406 .capture = {
1407 .stream_name = "Capture",
1408 .channels_min = 1,
1409 .channels_max = 2,
1410 .rates = WM8753_RATES,
1411 .formats = WM8753_FORMATS,},
1412 .ops = {
1413 .hw_params = wm8753_i2s_hw_params,},
1414 .dai_ops = {
1415 .digital_mute = wm8753_mute,
1416 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1417 .set_clkdiv = wm8753_set_dai_clkdiv,
1418 .set_pll = wm8753_set_dai_pll,
1419 .set_sysclk = wm8753_set_dai_sysclk,
1420 },
1421 },
1422 /* DAI Voice mode 3 - dummy */
1423 { .name = "WM8753 Voice",
1424 .id = 3,
1425 },
1426 /* DAI HiFi mode 4 */
1427 { .name = "WM8753 HiFi",
1428 .id = 4,
1429 .playback = {
1430 .stream_name = "HiFi Playback",
1431 .channels_min = 1,
1432 .channels_max = 2,
1433 .rates = WM8753_RATES,
1434 .formats = WM8753_FORMATS,},
1435 .capture = {
1436 .stream_name = "Capture",
1437 .channels_min = 1,
1438 .channels_max = 2,
1439 .rates = WM8753_RATES,
1440 .formats = WM8753_FORMATS,},
1441 .ops = {
1442 .hw_params = wm8753_i2s_hw_params,},
1443 .dai_ops = {
1444 .digital_mute = wm8753_mute,
1445 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1446 .set_clkdiv = wm8753_set_dai_clkdiv,
1447 .set_pll = wm8753_set_dai_pll,
1448 .set_sysclk = wm8753_set_dai_sysclk,
1449 },
1450 },
1451 /* DAI Voice mode 4 - dummy */
1452 { .name = "WM8753 Voice",
1453 .id = 4,
1454 },
1455 };
1456
1457 struct snd_soc_dai wm8753_dai[2];
1458 EXPORT_SYMBOL_GPL(wm8753_dai);
1459
1460 static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
1461 {
1462 if (mode < 4) {
1463 int playback_active, capture_active, codec_active, pop_wait;
1464 void *private_data;
1465
1466 playback_active = wm8753_dai[0].playback.active;
1467 capture_active = wm8753_dai[0].capture.active;
1468 codec_active = wm8753_dai[0].active;
1469 private_data = wm8753_dai[0].private_data;
1470 pop_wait = wm8753_dai[0].pop_wait;
1471 wm8753_dai[0] = wm8753_all_dai[mode << 1];
1472 wm8753_dai[0].playback.active = playback_active;
1473 wm8753_dai[0].capture.active = capture_active;
1474 wm8753_dai[0].active = codec_active;
1475 wm8753_dai[0].private_data = private_data;
1476 wm8753_dai[0].pop_wait = pop_wait;
1477
1478 playback_active = wm8753_dai[1].playback.active;
1479 capture_active = wm8753_dai[1].capture.active;
1480 codec_active = wm8753_dai[1].active;
1481 private_data = wm8753_dai[1].private_data;
1482 pop_wait = wm8753_dai[1].pop_wait;
1483 wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1];
1484 wm8753_dai[1].playback.active = playback_active;
1485 wm8753_dai[1].capture.active = capture_active;
1486 wm8753_dai[1].active = codec_active;
1487 wm8753_dai[1].private_data = private_data;
1488 wm8753_dai[1].pop_wait = pop_wait;
1489 }
1490 wm8753_dai[0].codec = codec;
1491 wm8753_dai[1].codec = codec;
1492 }
1493
1494 static void wm8753_work(struct work_struct *work)
1495 {
1496 struct snd_soc_codec *codec =
1497 container_of(work, struct snd_soc_codec, delayed_work.work);
1498 wm8753_set_bias_level(codec, codec->bias_level);
1499 }
1500
1501 static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
1502 {
1503 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1504 struct snd_soc_codec *codec = socdev->codec;
1505
1506 /* we only need to suspend if we are a valid card */
1507 if (!codec->card)
1508 return 0;
1509
1510 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1511 return 0;
1512 }
1513
1514 static int wm8753_resume(struct platform_device *pdev)
1515 {
1516 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1517 struct snd_soc_codec *codec = socdev->codec;
1518 int i;
1519 u8 data[2];
1520 u16 *cache = codec->reg_cache;
1521
1522 /* we only need to resume if we are a valid card */
1523 if (!codec->card)
1524 return 0;
1525
1526 /* Sync reg_cache with the hardware */
1527 for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) {
1528 if (i + 1 == WM8753_RESET)
1529 continue;
1530 data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
1531 data[1] = cache[i] & 0x00ff;
1532 codec->hw_write(codec->control_data, data, 2);
1533 }
1534
1535 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1536
1537 /* charge wm8753 caps */
1538 if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
1539 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1540 codec->bias_level = SND_SOC_BIAS_ON;
1541 schedule_delayed_work(&codec->delayed_work,
1542 msecs_to_jiffies(caps_charge));
1543 }
1544
1545 return 0;
1546 }
1547
1548 /*
1549 * initialise the WM8753 driver
1550 * register the mixer and dsp interfaces with the kernel
1551 */
1552 static int wm8753_init(struct snd_soc_device *socdev)
1553 {
1554 struct snd_soc_codec *codec = socdev->codec;
1555 int reg, ret = 0;
1556
1557 codec->name = "WM8753";
1558 codec->owner = THIS_MODULE;
1559 codec->read = wm8753_read_reg_cache;
1560 codec->write = wm8753_write;
1561 codec->set_bias_level = wm8753_set_bias_level;
1562 codec->dai = wm8753_dai;
1563 codec->num_dai = 2;
1564 codec->reg_cache_size = ARRAY_SIZE(wm8753_reg);
1565 codec->reg_cache = kmemdup(wm8753_reg, sizeof(wm8753_reg), GFP_KERNEL);
1566
1567 if (codec->reg_cache == NULL)
1568 return -ENOMEM;
1569
1570 wm8753_set_dai_mode(codec, 0);
1571
1572 wm8753_reset(codec);
1573
1574 /* register pcms */
1575 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1576 if (ret < 0) {
1577 printk(KERN_ERR "wm8753: failed to create pcms\n");
1578 goto pcm_err;
1579 }
1580
1581 /* charge output caps */
1582 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1583 codec->bias_level = SND_SOC_BIAS_STANDBY;
1584 schedule_delayed_work(&codec->delayed_work,
1585 msecs_to_jiffies(caps_charge));
1586
1587 /* set the update bits */
1588 reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
1589 wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
1590 reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
1591 wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
1592 reg = wm8753_read_reg_cache(codec, WM8753_LADC);
1593 wm8753_write(codec, WM8753_LADC, reg | 0x0100);
1594 reg = wm8753_read_reg_cache(codec, WM8753_RADC);
1595 wm8753_write(codec, WM8753_RADC, reg | 0x0100);
1596 reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
1597 wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
1598 reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
1599 wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
1600 reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
1601 wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
1602 reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
1603 wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
1604 reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
1605 wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
1606 reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
1607 wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
1608
1609 wm8753_add_controls(codec);
1610 wm8753_add_widgets(codec);
1611 ret = snd_soc_register_card(socdev);
1612 if (ret < 0) {
1613 printk(KERN_ERR "wm8753: failed to register card\n");
1614 goto card_err;
1615 }
1616
1617 return ret;
1618
1619 card_err:
1620 snd_soc_free_pcms(socdev);
1621 snd_soc_dapm_free(socdev);
1622 pcm_err:
1623 kfree(codec->reg_cache);
1624 return ret;
1625 }
1626
1627 /* If the i2c layer weren't so broken, we could pass this kind of data
1628 around */
1629 static struct snd_soc_device *wm8753_socdev;
1630
1631 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1632
1633 /*
1634 * WM8753 2 wire address is determined by GPIO5
1635 * state during powerup.
1636 * low = 0x1a
1637 * high = 0x1b
1638 */
1639
1640 static int wm8753_i2c_probe(struct i2c_client *i2c,
1641 const struct i2c_device_id *id)
1642 {
1643 struct snd_soc_device *socdev = wm8753_socdev;
1644 struct snd_soc_codec *codec = socdev->codec;
1645 int ret;
1646
1647 i2c_set_clientdata(i2c, codec);
1648 codec->control_data = i2c;
1649
1650 ret = wm8753_init(socdev);
1651 if (ret < 0)
1652 pr_err("failed to initialise WM8753\n");
1653
1654 return ret;
1655 }
1656
1657 static int wm8753_i2c_remove(struct i2c_client *client)
1658 {
1659 struct snd_soc_codec *codec = i2c_get_clientdata(client);
1660 kfree(codec->reg_cache);
1661 return 0;
1662 }
1663
1664 static const struct i2c_device_id wm8753_i2c_id[] = {
1665 { "wm8753", 0 },
1666 { }
1667 };
1668 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1669
1670 static struct i2c_driver wm8753_i2c_driver = {
1671 .driver = {
1672 .name = "WM8753 I2C Codec",
1673 .owner = THIS_MODULE,
1674 },
1675 .probe = wm8753_i2c_probe,
1676 .remove = wm8753_i2c_remove,
1677 .id_table = wm8753_i2c_id,
1678 };
1679
1680 static int wm8753_add_i2c_device(struct platform_device *pdev,
1681 const struct wm8753_setup_data *setup)
1682 {
1683 struct i2c_board_info info;
1684 struct i2c_adapter *adapter;
1685 struct i2c_client *client;
1686 int ret;
1687
1688 ret = i2c_add_driver(&wm8753_i2c_driver);
1689 if (ret != 0) {
1690 dev_err(&pdev->dev, "can't add i2c driver\n");
1691 return ret;
1692 }
1693
1694 memset(&info, 0, sizeof(struct i2c_board_info));
1695 info.addr = setup->i2c_address;
1696 strlcpy(info.type, "wm8753", I2C_NAME_SIZE);
1697
1698 adapter = i2c_get_adapter(setup->i2c_bus);
1699 if (!adapter) {
1700 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
1701 setup->i2c_bus);
1702 goto err_driver;
1703 }
1704
1705 client = i2c_new_device(adapter, &info);
1706 i2c_put_adapter(adapter);
1707 if (!client) {
1708 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
1709 (unsigned int)info.addr);
1710 goto err_driver;
1711 }
1712
1713 return 0;
1714
1715 err_driver:
1716 i2c_del_driver(&wm8753_i2c_driver);
1717 return -ENODEV;
1718 }
1719 #endif
1720
1721 #if defined(CONFIG_SPI_MASTER)
1722 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1723 {
1724 struct snd_soc_device *socdev = wm8753_socdev;
1725 struct snd_soc_codec *codec = socdev->codec;
1726 int ret;
1727
1728 codec->control_data = spi;
1729
1730 ret = wm8753_init(socdev);
1731 if (ret < 0)
1732 dev_err(&spi->dev, "failed to initialise WM8753\n");
1733
1734 return ret;
1735 }
1736
1737 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1738 {
1739 return 0;
1740 }
1741
1742 static struct spi_driver wm8753_spi_driver = {
1743 .driver = {
1744 .name = "wm8753",
1745 .bus = &spi_bus_type,
1746 .owner = THIS_MODULE,
1747 },
1748 .probe = wm8753_spi_probe,
1749 .remove = __devexit_p(wm8753_spi_remove),
1750 };
1751
1752 static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
1753 {
1754 struct spi_transfer t;
1755 struct spi_message m;
1756 u8 msg[2];
1757
1758 if (len <= 0)
1759 return 0;
1760
1761 msg[0] = data[0];
1762 msg[1] = data[1];
1763
1764 spi_message_init(&m);
1765 memset(&t, 0, (sizeof t));
1766
1767 t.tx_buf = &msg[0];
1768 t.len = len;
1769
1770 spi_message_add_tail(&t, &m);
1771 spi_sync(spi, &m);
1772
1773 return len;
1774 }
1775 #endif
1776
1777
1778 static int wm8753_probe(struct platform_device *pdev)
1779 {
1780 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1781 struct wm8753_setup_data *setup;
1782 struct snd_soc_codec *codec;
1783 struct wm8753_priv *wm8753;
1784 int ret = 0;
1785
1786 pr_info("WM8753 Audio Codec %s", WM8753_VERSION);
1787
1788 setup = socdev->codec_data;
1789 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
1790 if (codec == NULL)
1791 return -ENOMEM;
1792
1793 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1794 if (wm8753 == NULL) {
1795 kfree(codec);
1796 return -ENOMEM;
1797 }
1798
1799 codec->private_data = wm8753;
1800 socdev->codec = codec;
1801 mutex_init(&codec->mutex);
1802 INIT_LIST_HEAD(&codec->dapm_widgets);
1803 INIT_LIST_HEAD(&codec->dapm_paths);
1804 wm8753_socdev = socdev;
1805 INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
1806
1807 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1808 if (setup->i2c_address) {
1809 codec->hw_write = (hw_write_t)i2c_master_send;
1810 ret = wm8753_add_i2c_device(pdev, setup);
1811 }
1812 #endif
1813 #if defined(CONFIG_SPI_MASTER)
1814 if (setup->spi) {
1815 codec->hw_write = (hw_write_t)wm8753_spi_write;
1816 ret = spi_register_driver(&wm8753_spi_driver);
1817 if (ret != 0)
1818 printk(KERN_ERR "can't add spi driver");
1819 }
1820 #endif
1821
1822 if (ret != 0) {
1823 kfree(codec->private_data);
1824 kfree(codec);
1825 }
1826 return ret;
1827 }
1828
1829 /*
1830 * This function forces any delayed work to be queued and run.
1831 */
1832 static int run_delayed_work(struct delayed_work *dwork)
1833 {
1834 int ret;
1835
1836 /* cancel any work waiting to be queued. */
1837 ret = cancel_delayed_work(dwork);
1838
1839 /* if there was any work waiting then we run it now and
1840 * wait for it's completion */
1841 if (ret) {
1842 schedule_delayed_work(dwork, 0);
1843 flush_scheduled_work();
1844 }
1845 return ret;
1846 }
1847
1848 /* power down chip */
1849 static int wm8753_remove(struct platform_device *pdev)
1850 {
1851 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1852 struct snd_soc_codec *codec = socdev->codec;
1853
1854 if (codec->control_data)
1855 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1856 run_delayed_work(&codec->delayed_work);
1857 snd_soc_free_pcms(socdev);
1858 snd_soc_dapm_free(socdev);
1859 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1860 i2c_unregister_device(codec->control_data);
1861 i2c_del_driver(&wm8753_i2c_driver);
1862 #endif
1863 #if defined(CONFIG_SPI_MASTER)
1864 spi_unregister_driver(&wm8753_spi_driver);
1865 #endif
1866 kfree(codec->private_data);
1867 kfree(codec);
1868
1869 return 0;
1870 }
1871
1872 struct snd_soc_codec_device soc_codec_dev_wm8753 = {
1873 .probe = wm8753_probe,
1874 .remove = wm8753_remove,
1875 .suspend = wm8753_suspend,
1876 .resume = wm8753_resume,
1877 };
1878 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
1879
1880 MODULE_DESCRIPTION("ASoC WM8753 driver");
1881 MODULE_AUTHOR("Liam Girdwood");
1882 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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