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ASoC: wm0010: Add initial wm0010 DSP driver
[deliverable/linux.git] / sound / soc / codecs / wm8900.c
1 /*
2 * wm8900.c -- WM8900 ALSA Soc Audio driver
3 *
4 * Copyright 2007, 2008 Wolfson Microelectronics PLC.
5 *
6 * Author: Mark Brown <broonie@opensource.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 * TODO:
13 * - Tristating.
14 * - TDM.
15 * - Jack detect.
16 * - FLL source configuration, currently only MCLK is supported.
17 */
18
19 #include <linux/module.h>
20 #include <linux/moduleparam.h>
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/delay.h>
24 #include <linux/pm.h>
25 #include <linux/i2c.h>
26 #include <linux/spi/spi.h>
27 #include <linux/slab.h>
28 #include <sound/core.h>
29 #include <sound/pcm.h>
30 #include <sound/pcm_params.h>
31 #include <sound/soc.h>
32 #include <sound/initval.h>
33 #include <sound/tlv.h>
34
35 #include "wm8900.h"
36
37 /* WM8900 register space */
38 #define WM8900_REG_RESET 0x0
39 #define WM8900_REG_ID 0x0
40 #define WM8900_REG_POWER1 0x1
41 #define WM8900_REG_POWER2 0x2
42 #define WM8900_REG_POWER3 0x3
43 #define WM8900_REG_AUDIO1 0x4
44 #define WM8900_REG_AUDIO2 0x5
45 #define WM8900_REG_CLOCKING1 0x6
46 #define WM8900_REG_CLOCKING2 0x7
47 #define WM8900_REG_AUDIO3 0x8
48 #define WM8900_REG_AUDIO4 0x9
49 #define WM8900_REG_DACCTRL 0xa
50 #define WM8900_REG_LDAC_DV 0xb
51 #define WM8900_REG_RDAC_DV 0xc
52 #define WM8900_REG_SIDETONE 0xd
53 #define WM8900_REG_ADCCTRL 0xe
54 #define WM8900_REG_LADC_DV 0xf
55 #define WM8900_REG_RADC_DV 0x10
56 #define WM8900_REG_GPIO 0x12
57 #define WM8900_REG_INCTL 0x15
58 #define WM8900_REG_LINVOL 0x16
59 #define WM8900_REG_RINVOL 0x17
60 #define WM8900_REG_INBOOSTMIX1 0x18
61 #define WM8900_REG_INBOOSTMIX2 0x19
62 #define WM8900_REG_ADCPATH 0x1a
63 #define WM8900_REG_AUXBOOST 0x1b
64 #define WM8900_REG_ADDCTL 0x1e
65 #define WM8900_REG_FLLCTL1 0x24
66 #define WM8900_REG_FLLCTL2 0x25
67 #define WM8900_REG_FLLCTL3 0x26
68 #define WM8900_REG_FLLCTL4 0x27
69 #define WM8900_REG_FLLCTL5 0x28
70 #define WM8900_REG_FLLCTL6 0x29
71 #define WM8900_REG_LOUTMIXCTL1 0x2c
72 #define WM8900_REG_ROUTMIXCTL1 0x2d
73 #define WM8900_REG_BYPASS1 0x2e
74 #define WM8900_REG_BYPASS2 0x2f
75 #define WM8900_REG_AUXOUT_CTL 0x30
76 #define WM8900_REG_LOUT1CTL 0x33
77 #define WM8900_REG_ROUT1CTL 0x34
78 #define WM8900_REG_LOUT2CTL 0x35
79 #define WM8900_REG_ROUT2CTL 0x36
80 #define WM8900_REG_HPCTL1 0x3a
81 #define WM8900_REG_OUTBIASCTL 0x73
82
83 #define WM8900_MAXREG 0x80
84
85 #define WM8900_REG_ADDCTL_OUT1_DIS 0x80
86 #define WM8900_REG_ADDCTL_OUT2_DIS 0x40
87 #define WM8900_REG_ADDCTL_VMID_DIS 0x20
88 #define WM8900_REG_ADDCTL_BIAS_SRC 0x10
89 #define WM8900_REG_ADDCTL_VMID_SOFTST 0x04
90 #define WM8900_REG_ADDCTL_TEMP_SD 0x02
91
92 #define WM8900_REG_GPIO_TEMP_ENA 0x2
93
94 #define WM8900_REG_POWER1_STARTUP_BIAS_ENA 0x0100
95 #define WM8900_REG_POWER1_BIAS_ENA 0x0008
96 #define WM8900_REG_POWER1_VMID_BUF_ENA 0x0004
97 #define WM8900_REG_POWER1_FLL_ENA 0x0040
98
99 #define WM8900_REG_POWER2_SYSCLK_ENA 0x8000
100 #define WM8900_REG_POWER2_ADCL_ENA 0x0002
101 #define WM8900_REG_POWER2_ADCR_ENA 0x0001
102
103 #define WM8900_REG_POWER3_DACL_ENA 0x0002
104 #define WM8900_REG_POWER3_DACR_ENA 0x0001
105
106 #define WM8900_REG_AUDIO1_AIF_FMT_MASK 0x0018
107 #define WM8900_REG_AUDIO1_LRCLK_INV 0x0080
108 #define WM8900_REG_AUDIO1_BCLK_INV 0x0100
109
110 #define WM8900_REG_CLOCKING1_BCLK_DIR 0x1
111 #define WM8900_REG_CLOCKING1_MCLK_SRC 0x100
112 #define WM8900_REG_CLOCKING1_BCLK_MASK 0x01e
113 #define WM8900_REG_CLOCKING1_OPCLK_MASK 0x7000
114
115 #define WM8900_REG_CLOCKING2_ADC_CLKDIV 0xe0
116 #define WM8900_REG_CLOCKING2_DAC_CLKDIV 0x1c
117
118 #define WM8900_REG_DACCTRL_MUTE 0x004
119 #define WM8900_REG_DACCTRL_DAC_SB_FILT 0x100
120 #define WM8900_REG_DACCTRL_AIF_LRCLKRATE 0x400
121
122 #define WM8900_REG_AUDIO3_ADCLRC_DIR 0x0800
123
124 #define WM8900_REG_AUDIO4_DACLRC_DIR 0x0800
125
126 #define WM8900_REG_FLLCTL1_OSC_ENA 0x100
127
128 #define WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF 0x100
129
130 #define WM8900_REG_HPCTL1_HP_IPSTAGE_ENA 0x80
131 #define WM8900_REG_HPCTL1_HP_OPSTAGE_ENA 0x40
132 #define WM8900_REG_HPCTL1_HP_CLAMP_IP 0x20
133 #define WM8900_REG_HPCTL1_HP_CLAMP_OP 0x10
134 #define WM8900_REG_HPCTL1_HP_SHORT 0x08
135 #define WM8900_REG_HPCTL1_HP_SHORT2 0x04
136
137 #define WM8900_LRC_MASK 0x03ff
138
139 struct wm8900_priv {
140 enum snd_soc_control_type control_type;
141
142 u32 fll_in; /* FLL input frequency */
143 u32 fll_out; /* FLL output frequency */
144 };
145
146 /*
147 * wm8900 register cache. We can't read the entire register space and we
148 * have slow control buses so we cache the registers.
149 */
150 static const u16 wm8900_reg_defaults[WM8900_MAXREG] = {
151 0x8900, 0x0000,
152 0xc000, 0x0000,
153 0x4050, 0x4000,
154 0x0008, 0x0000,
155 0x0040, 0x0040,
156 0x1004, 0x00c0,
157 0x00c0, 0x0000,
158 0x0100, 0x00c0,
159 0x00c0, 0x0000,
160 0xb001, 0x0000,
161 0x0000, 0x0044,
162 0x004c, 0x004c,
163 0x0044, 0x0044,
164 0x0000, 0x0044,
165 0x0000, 0x0000,
166 0x0002, 0x0000,
167 0x0000, 0x0000,
168 0x0000, 0x0000,
169 0x0008, 0x0000,
170 0x0000, 0x0008,
171 0x0097, 0x0100,
172 0x0000, 0x0000,
173 0x0050, 0x0050,
174 0x0055, 0x0055,
175 0x0055, 0x0000,
176 0x0000, 0x0079,
177 0x0079, 0x0079,
178 0x0079, 0x0000,
179 /* Remaining registers all zero */
180 };
181
182 static int wm8900_volatile_register(struct snd_soc_codec *codec, unsigned int reg)
183 {
184 switch (reg) {
185 case WM8900_REG_ID:
186 return 1;
187 default:
188 return 0;
189 }
190 }
191
192 static void wm8900_reset(struct snd_soc_codec *codec)
193 {
194 snd_soc_write(codec, WM8900_REG_RESET, 0);
195
196 memcpy(codec->reg_cache, wm8900_reg_defaults,
197 sizeof(wm8900_reg_defaults));
198 }
199
200 static int wm8900_hp_event(struct snd_soc_dapm_widget *w,
201 struct snd_kcontrol *kcontrol, int event)
202 {
203 struct snd_soc_codec *codec = w->codec;
204 u16 hpctl1 = snd_soc_read(codec, WM8900_REG_HPCTL1);
205
206 switch (event) {
207 case SND_SOC_DAPM_PRE_PMU:
208 /* Clamp headphone outputs */
209 hpctl1 = WM8900_REG_HPCTL1_HP_CLAMP_IP |
210 WM8900_REG_HPCTL1_HP_CLAMP_OP;
211 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
212 break;
213
214 case SND_SOC_DAPM_POST_PMU:
215 /* Enable the input stage */
216 hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_IP;
217 hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT |
218 WM8900_REG_HPCTL1_HP_SHORT2 |
219 WM8900_REG_HPCTL1_HP_IPSTAGE_ENA;
220 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
221
222 msleep(400);
223
224 /* Enable the output stage */
225 hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_OP;
226 hpctl1 |= WM8900_REG_HPCTL1_HP_OPSTAGE_ENA;
227 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
228
229 /* Remove the shorts */
230 hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT2;
231 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
232 hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT;
233 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
234 break;
235
236 case SND_SOC_DAPM_PRE_PMD:
237 /* Short the output */
238 hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT;
239 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
240
241 /* Disable the output stage */
242 hpctl1 &= ~WM8900_REG_HPCTL1_HP_OPSTAGE_ENA;
243 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
244
245 /* Clamp the outputs and power down input */
246 hpctl1 |= WM8900_REG_HPCTL1_HP_CLAMP_IP |
247 WM8900_REG_HPCTL1_HP_CLAMP_OP;
248 hpctl1 &= ~WM8900_REG_HPCTL1_HP_IPSTAGE_ENA;
249 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
250 break;
251
252 case SND_SOC_DAPM_POST_PMD:
253 /* Disable everything */
254 snd_soc_write(codec, WM8900_REG_HPCTL1, 0);
255 break;
256
257 default:
258 BUG();
259 }
260
261 return 0;
262 }
263
264 static const DECLARE_TLV_DB_SCALE(out_pga_tlv, -5700, 100, 0);
265
266 static const DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 0);
267
268 static const DECLARE_TLV_DB_SCALE(in_boost_tlv, -1200, 600, 0);
269
270 static const DECLARE_TLV_DB_SCALE(in_pga_tlv, -1200, 100, 0);
271
272 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
273
274 static const DECLARE_TLV_DB_SCALE(dac_tlv, -7200, 75, 1);
275
276 static const DECLARE_TLV_DB_SCALE(adc_svol_tlv, -3600, 300, 0);
277
278 static const DECLARE_TLV_DB_SCALE(adc_tlv, -7200, 75, 1);
279
280 static const char *mic_bias_level_txt[] = { "0.9*AVDD", "0.65*AVDD" };
281
282 static const struct soc_enum mic_bias_level =
283 SOC_ENUM_SINGLE(WM8900_REG_INCTL, 8, 2, mic_bias_level_txt);
284
285 static const char *dac_mute_rate_txt[] = { "Fast", "Slow" };
286
287 static const struct soc_enum dac_mute_rate =
288 SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 7, 2, dac_mute_rate_txt);
289
290 static const char *dac_deemphasis_txt[] = {
291 "Disabled", "32kHz", "44.1kHz", "48kHz"
292 };
293
294 static const struct soc_enum dac_deemphasis =
295 SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 4, 4, dac_deemphasis_txt);
296
297 static const char *adc_hpf_cut_txt[] = {
298 "Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"
299 };
300
301 static const struct soc_enum adc_hpf_cut =
302 SOC_ENUM_SINGLE(WM8900_REG_ADCCTRL, 5, 4, adc_hpf_cut_txt);
303
304 static const char *lr_txt[] = {
305 "Left", "Right"
306 };
307
308 static const struct soc_enum aifl_src =
309 SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 15, 2, lr_txt);
310
311 static const struct soc_enum aifr_src =
312 SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 14, 2, lr_txt);
313
314 static const struct soc_enum dacl_src =
315 SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 15, 2, lr_txt);
316
317 static const struct soc_enum dacr_src =
318 SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 14, 2, lr_txt);
319
320 static const char *sidetone_txt[] = {
321 "Disabled", "Left ADC", "Right ADC"
322 };
323
324 static const struct soc_enum dacl_sidetone =
325 SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 2, 3, sidetone_txt);
326
327 static const struct soc_enum dacr_sidetone =
328 SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 0, 3, sidetone_txt);
329
330 static const struct snd_kcontrol_new wm8900_snd_controls[] = {
331 SOC_ENUM("Mic Bias Level", mic_bias_level),
332
333 SOC_SINGLE_TLV("Left Input PGA Volume", WM8900_REG_LINVOL, 0, 31, 0,
334 in_pga_tlv),
335 SOC_SINGLE("Left Input PGA Switch", WM8900_REG_LINVOL, 6, 1, 1),
336 SOC_SINGLE("Left Input PGA ZC Switch", WM8900_REG_LINVOL, 7, 1, 0),
337
338 SOC_SINGLE_TLV("Right Input PGA Volume", WM8900_REG_RINVOL, 0, 31, 0,
339 in_pga_tlv),
340 SOC_SINGLE("Right Input PGA Switch", WM8900_REG_RINVOL, 6, 1, 1),
341 SOC_SINGLE("Right Input PGA ZC Switch", WM8900_REG_RINVOL, 7, 1, 0),
342
343 SOC_SINGLE("DAC Soft Mute Switch", WM8900_REG_DACCTRL, 6, 1, 1),
344 SOC_ENUM("DAC Mute Rate", dac_mute_rate),
345 SOC_SINGLE("DAC Mono Switch", WM8900_REG_DACCTRL, 9, 1, 0),
346 SOC_ENUM("DAC Deemphasis", dac_deemphasis),
347 SOC_SINGLE("DAC Sigma-Delta Modulator Clock Switch", WM8900_REG_DACCTRL,
348 12, 1, 0),
349
350 SOC_SINGLE("ADC HPF Switch", WM8900_REG_ADCCTRL, 8, 1, 0),
351 SOC_ENUM("ADC HPF Cut-Off", adc_hpf_cut),
352 SOC_DOUBLE("ADC Invert Switch", WM8900_REG_ADCCTRL, 1, 0, 1, 0),
353 SOC_SINGLE_TLV("Left ADC Sidetone Volume", WM8900_REG_SIDETONE, 9, 12, 0,
354 adc_svol_tlv),
355 SOC_SINGLE_TLV("Right ADC Sidetone Volume", WM8900_REG_SIDETONE, 5, 12, 0,
356 adc_svol_tlv),
357 SOC_ENUM("Left Digital Audio Source", aifl_src),
358 SOC_ENUM("Right Digital Audio Source", aifr_src),
359
360 SOC_SINGLE_TLV("DAC Input Boost Volume", WM8900_REG_AUDIO2, 10, 4, 0,
361 dac_boost_tlv),
362 SOC_ENUM("Left DAC Source", dacl_src),
363 SOC_ENUM("Right DAC Source", dacr_src),
364 SOC_ENUM("Left DAC Sidetone", dacl_sidetone),
365 SOC_ENUM("Right DAC Sidetone", dacr_sidetone),
366 SOC_DOUBLE("DAC Invert Switch", WM8900_REG_DACCTRL, 1, 0, 1, 0),
367
368 SOC_DOUBLE_R_TLV("Digital Playback Volume",
369 WM8900_REG_LDAC_DV, WM8900_REG_RDAC_DV,
370 1, 96, 0, dac_tlv),
371 SOC_DOUBLE_R_TLV("Digital Capture Volume",
372 WM8900_REG_LADC_DV, WM8900_REG_RADC_DV, 1, 119, 0, adc_tlv),
373
374 SOC_SINGLE_TLV("LINPUT3 Bypass Volume", WM8900_REG_LOUTMIXCTL1, 4, 7, 0,
375 out_mix_tlv),
376 SOC_SINGLE_TLV("RINPUT3 Bypass Volume", WM8900_REG_ROUTMIXCTL1, 4, 7, 0,
377 out_mix_tlv),
378 SOC_SINGLE_TLV("Left AUX Bypass Volume", WM8900_REG_AUXOUT_CTL, 4, 7, 0,
379 out_mix_tlv),
380 SOC_SINGLE_TLV("Right AUX Bypass Volume", WM8900_REG_AUXOUT_CTL, 0, 7, 0,
381 out_mix_tlv),
382
383 SOC_SINGLE_TLV("LeftIn to RightOut Mixer Volume", WM8900_REG_BYPASS1, 0, 7, 0,
384 out_mix_tlv),
385 SOC_SINGLE_TLV("LeftIn to LeftOut Mixer Volume", WM8900_REG_BYPASS1, 4, 7, 0,
386 out_mix_tlv),
387 SOC_SINGLE_TLV("RightIn to LeftOut Mixer Volume", WM8900_REG_BYPASS2, 0, 7, 0,
388 out_mix_tlv),
389 SOC_SINGLE_TLV("RightIn to RightOut Mixer Volume", WM8900_REG_BYPASS2, 4, 7, 0,
390 out_mix_tlv),
391
392 SOC_SINGLE_TLV("IN2L Boost Volume", WM8900_REG_INBOOSTMIX1, 0, 3, 0,
393 in_boost_tlv),
394 SOC_SINGLE_TLV("IN3L Boost Volume", WM8900_REG_INBOOSTMIX1, 4, 3, 0,
395 in_boost_tlv),
396 SOC_SINGLE_TLV("IN2R Boost Volume", WM8900_REG_INBOOSTMIX2, 0, 3, 0,
397 in_boost_tlv),
398 SOC_SINGLE_TLV("IN3R Boost Volume", WM8900_REG_INBOOSTMIX2, 4, 3, 0,
399 in_boost_tlv),
400 SOC_SINGLE_TLV("Left AUX Boost Volume", WM8900_REG_AUXBOOST, 4, 3, 0,
401 in_boost_tlv),
402 SOC_SINGLE_TLV("Right AUX Boost Volume", WM8900_REG_AUXBOOST, 0, 3, 0,
403 in_boost_tlv),
404
405 SOC_DOUBLE_R_TLV("LINEOUT1 Volume", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL,
406 0, 63, 0, out_pga_tlv),
407 SOC_DOUBLE_R("LINEOUT1 Switch", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL,
408 6, 1, 1),
409 SOC_DOUBLE_R("LINEOUT1 ZC Switch", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL,
410 7, 1, 0),
411
412 SOC_DOUBLE_R_TLV("LINEOUT2 Volume",
413 WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL,
414 0, 63, 0, out_pga_tlv),
415 SOC_DOUBLE_R("LINEOUT2 Switch",
416 WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, 6, 1, 1),
417 SOC_DOUBLE_R("LINEOUT2 ZC Switch",
418 WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, 7, 1, 0),
419 SOC_SINGLE("LINEOUT2 LP -12dB", WM8900_REG_LOUTMIXCTL1,
420 0, 1, 1),
421
422 };
423
424 static const struct snd_kcontrol_new wm8900_dapm_loutput2_control =
425 SOC_DAPM_SINGLE("LINEOUT2L Switch", WM8900_REG_POWER3, 6, 1, 0);
426
427 static const struct snd_kcontrol_new wm8900_dapm_routput2_control =
428 SOC_DAPM_SINGLE("LINEOUT2R Switch", WM8900_REG_POWER3, 5, 1, 0);
429
430 static const struct snd_kcontrol_new wm8900_loutmix_controls[] = {
431 SOC_DAPM_SINGLE("LINPUT3 Bypass Switch", WM8900_REG_LOUTMIXCTL1, 7, 1, 0),
432 SOC_DAPM_SINGLE("AUX Bypass Switch", WM8900_REG_AUXOUT_CTL, 7, 1, 0),
433 SOC_DAPM_SINGLE("Left Input Mixer Switch", WM8900_REG_BYPASS1, 7, 1, 0),
434 SOC_DAPM_SINGLE("Right Input Mixer Switch", WM8900_REG_BYPASS2, 3, 1, 0),
435 SOC_DAPM_SINGLE("DACL Switch", WM8900_REG_LOUTMIXCTL1, 8, 1, 0),
436 };
437
438 static const struct snd_kcontrol_new wm8900_routmix_controls[] = {
439 SOC_DAPM_SINGLE("RINPUT3 Bypass Switch", WM8900_REG_ROUTMIXCTL1, 7, 1, 0),
440 SOC_DAPM_SINGLE("AUX Bypass Switch", WM8900_REG_AUXOUT_CTL, 3, 1, 0),
441 SOC_DAPM_SINGLE("Left Input Mixer Switch", WM8900_REG_BYPASS1, 3, 1, 0),
442 SOC_DAPM_SINGLE("Right Input Mixer Switch", WM8900_REG_BYPASS2, 7, 1, 0),
443 SOC_DAPM_SINGLE("DACR Switch", WM8900_REG_ROUTMIXCTL1, 8, 1, 0),
444 };
445
446 static const struct snd_kcontrol_new wm8900_linmix_controls[] = {
447 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8900_REG_INBOOSTMIX1, 2, 1, 1),
448 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8900_REG_INBOOSTMIX1, 6, 1, 1),
449 SOC_DAPM_SINGLE("AUX Switch", WM8900_REG_AUXBOOST, 6, 1, 1),
450 SOC_DAPM_SINGLE("Input PGA Switch", WM8900_REG_ADCPATH, 6, 1, 0),
451 };
452
453 static const struct snd_kcontrol_new wm8900_rinmix_controls[] = {
454 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INBOOSTMIX2, 2, 1, 1),
455 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INBOOSTMIX2, 6, 1, 1),
456 SOC_DAPM_SINGLE("AUX Switch", WM8900_REG_AUXBOOST, 2, 1, 1),
457 SOC_DAPM_SINGLE("Input PGA Switch", WM8900_REG_ADCPATH, 2, 1, 0),
458 };
459
460 static const struct snd_kcontrol_new wm8900_linpga_controls[] = {
461 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8900_REG_INCTL, 6, 1, 0),
462 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8900_REG_INCTL, 5, 1, 0),
463 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8900_REG_INCTL, 4, 1, 0),
464 };
465
466 static const struct snd_kcontrol_new wm8900_rinpga_controls[] = {
467 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8900_REG_INCTL, 2, 1, 0),
468 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INCTL, 1, 1, 0),
469 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INCTL, 0, 1, 0),
470 };
471
472 static const char *wm9700_lp_mux[] = { "Disabled", "Enabled" };
473
474 static const struct soc_enum wm8900_lineout2_lp_mux =
475 SOC_ENUM_SINGLE(WM8900_REG_LOUTMIXCTL1, 1, 2, wm9700_lp_mux);
476
477 static const struct snd_kcontrol_new wm8900_lineout2_lp =
478 SOC_DAPM_ENUM("Route", wm8900_lineout2_lp_mux);
479
480 static const struct snd_soc_dapm_widget wm8900_dapm_widgets[] = {
481
482 /* Externally visible pins */
483 SND_SOC_DAPM_OUTPUT("LINEOUT1L"),
484 SND_SOC_DAPM_OUTPUT("LINEOUT1R"),
485 SND_SOC_DAPM_OUTPUT("LINEOUT2L"),
486 SND_SOC_DAPM_OUTPUT("LINEOUT2R"),
487 SND_SOC_DAPM_OUTPUT("HP_L"),
488 SND_SOC_DAPM_OUTPUT("HP_R"),
489
490 SND_SOC_DAPM_INPUT("RINPUT1"),
491 SND_SOC_DAPM_INPUT("LINPUT1"),
492 SND_SOC_DAPM_INPUT("RINPUT2"),
493 SND_SOC_DAPM_INPUT("LINPUT2"),
494 SND_SOC_DAPM_INPUT("RINPUT3"),
495 SND_SOC_DAPM_INPUT("LINPUT3"),
496 SND_SOC_DAPM_INPUT("AUX"),
497
498 SND_SOC_DAPM_VMID("VMID"),
499
500 /* Input */
501 SND_SOC_DAPM_MIXER("Left Input PGA", WM8900_REG_POWER2, 3, 0,
502 wm8900_linpga_controls,
503 ARRAY_SIZE(wm8900_linpga_controls)),
504 SND_SOC_DAPM_MIXER("Right Input PGA", WM8900_REG_POWER2, 2, 0,
505 wm8900_rinpga_controls,
506 ARRAY_SIZE(wm8900_rinpga_controls)),
507
508 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8900_REG_POWER2, 5, 0,
509 wm8900_linmix_controls,
510 ARRAY_SIZE(wm8900_linmix_controls)),
511 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8900_REG_POWER2, 4, 0,
512 wm8900_rinmix_controls,
513 ARRAY_SIZE(wm8900_rinmix_controls)),
514
515 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8900_REG_POWER1, 4, 0, NULL, 0),
516
517 SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8900_REG_POWER2, 1, 0),
518 SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8900_REG_POWER2, 0, 0),
519
520 /* Output */
521 SND_SOC_DAPM_DAC("DACL", "Left HiFi Playback", WM8900_REG_POWER3, 1, 0),
522 SND_SOC_DAPM_DAC("DACR", "Right HiFi Playback", WM8900_REG_POWER3, 0, 0),
523
524 SND_SOC_DAPM_PGA_E("Headphone Amplifier", WM8900_REG_POWER3, 7, 0, NULL, 0,
525 wm8900_hp_event,
526 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
527 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
528
529 SND_SOC_DAPM_PGA("LINEOUT1L PGA", WM8900_REG_POWER2, 8, 0, NULL, 0),
530 SND_SOC_DAPM_PGA("LINEOUT1R PGA", WM8900_REG_POWER2, 7, 0, NULL, 0),
531
532 SND_SOC_DAPM_MUX("LINEOUT2 LP", SND_SOC_NOPM, 0, 0, &wm8900_lineout2_lp),
533 SND_SOC_DAPM_PGA("LINEOUT2L PGA", WM8900_REG_POWER3, 6, 0, NULL, 0),
534 SND_SOC_DAPM_PGA("LINEOUT2R PGA", WM8900_REG_POWER3, 5, 0, NULL, 0),
535
536 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8900_REG_POWER3, 3, 0,
537 wm8900_loutmix_controls,
538 ARRAY_SIZE(wm8900_loutmix_controls)),
539 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8900_REG_POWER3, 2, 0,
540 wm8900_routmix_controls,
541 ARRAY_SIZE(wm8900_routmix_controls)),
542 };
543
544 /* Target, Path, Source */
545 static const struct snd_soc_dapm_route wm8900_dapm_routes[] = {
546 /* Inputs */
547 {"Left Input PGA", "LINPUT1 Switch", "LINPUT1"},
548 {"Left Input PGA", "LINPUT2 Switch", "LINPUT2"},
549 {"Left Input PGA", "LINPUT3 Switch", "LINPUT3"},
550
551 {"Right Input PGA", "RINPUT1 Switch", "RINPUT1"},
552 {"Right Input PGA", "RINPUT2 Switch", "RINPUT2"},
553 {"Right Input PGA", "RINPUT3 Switch", "RINPUT3"},
554
555 {"Left Input Mixer", "LINPUT2 Switch", "LINPUT2"},
556 {"Left Input Mixer", "LINPUT3 Switch", "LINPUT3"},
557 {"Left Input Mixer", "AUX Switch", "AUX"},
558 {"Left Input Mixer", "Input PGA Switch", "Left Input PGA"},
559
560 {"Right Input Mixer", "RINPUT2 Switch", "RINPUT2"},
561 {"Right Input Mixer", "RINPUT3 Switch", "RINPUT3"},
562 {"Right Input Mixer", "AUX Switch", "AUX"},
563 {"Right Input Mixer", "Input PGA Switch", "Right Input PGA"},
564
565 {"ADCL", NULL, "Left Input Mixer"},
566 {"ADCR", NULL, "Right Input Mixer"},
567
568 /* Outputs */
569 {"LINEOUT1L", NULL, "LINEOUT1L PGA"},
570 {"LINEOUT1L PGA", NULL, "Left Output Mixer"},
571 {"LINEOUT1R", NULL, "LINEOUT1R PGA"},
572 {"LINEOUT1R PGA", NULL, "Right Output Mixer"},
573
574 {"LINEOUT2L PGA", NULL, "Left Output Mixer"},
575 {"LINEOUT2 LP", "Disabled", "LINEOUT2L PGA"},
576 {"LINEOUT2 LP", "Enabled", "Left Output Mixer"},
577 {"LINEOUT2L", NULL, "LINEOUT2 LP"},
578
579 {"LINEOUT2R PGA", NULL, "Right Output Mixer"},
580 {"LINEOUT2 LP", "Disabled", "LINEOUT2R PGA"},
581 {"LINEOUT2 LP", "Enabled", "Right Output Mixer"},
582 {"LINEOUT2R", NULL, "LINEOUT2 LP"},
583
584 {"Left Output Mixer", "LINPUT3 Bypass Switch", "LINPUT3"},
585 {"Left Output Mixer", "AUX Bypass Switch", "AUX"},
586 {"Left Output Mixer", "Left Input Mixer Switch", "Left Input Mixer"},
587 {"Left Output Mixer", "Right Input Mixer Switch", "Right Input Mixer"},
588 {"Left Output Mixer", "DACL Switch", "DACL"},
589
590 {"Right Output Mixer", "RINPUT3 Bypass Switch", "RINPUT3"},
591 {"Right Output Mixer", "AUX Bypass Switch", "AUX"},
592 {"Right Output Mixer", "Left Input Mixer Switch", "Left Input Mixer"},
593 {"Right Output Mixer", "Right Input Mixer Switch", "Right Input Mixer"},
594 {"Right Output Mixer", "DACR Switch", "DACR"},
595
596 /* Note that the headphone output stage needs to be connected
597 * externally to LINEOUT2 via DC blocking capacitors. Other
598 * configurations are not supported.
599 *
600 * Note also that left and right headphone paths are treated as a
601 * mono path.
602 */
603 {"Headphone Amplifier", NULL, "LINEOUT2 LP"},
604 {"Headphone Amplifier", NULL, "LINEOUT2 LP"},
605 {"HP_L", NULL, "Headphone Amplifier"},
606 {"HP_R", NULL, "Headphone Amplifier"},
607 };
608
609 static int wm8900_hw_params(struct snd_pcm_substream *substream,
610 struct snd_pcm_hw_params *params,
611 struct snd_soc_dai *dai)
612 {
613 struct snd_soc_codec *codec = dai->codec;
614 u16 reg;
615
616 reg = snd_soc_read(codec, WM8900_REG_AUDIO1) & ~0x60;
617
618 switch (params_format(params)) {
619 case SNDRV_PCM_FORMAT_S16_LE:
620 break;
621 case SNDRV_PCM_FORMAT_S20_3LE:
622 reg |= 0x20;
623 break;
624 case SNDRV_PCM_FORMAT_S24_LE:
625 reg |= 0x40;
626 break;
627 case SNDRV_PCM_FORMAT_S32_LE:
628 reg |= 0x60;
629 break;
630 default:
631 return -EINVAL;
632 }
633
634 snd_soc_write(codec, WM8900_REG_AUDIO1, reg);
635
636 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
637 reg = snd_soc_read(codec, WM8900_REG_DACCTRL);
638
639 if (params_rate(params) <= 24000)
640 reg |= WM8900_REG_DACCTRL_DAC_SB_FILT;
641 else
642 reg &= ~WM8900_REG_DACCTRL_DAC_SB_FILT;
643
644 snd_soc_write(codec, WM8900_REG_DACCTRL, reg);
645 }
646
647 return 0;
648 }
649
650 /* FLL divisors */
651 struct _fll_div {
652 u16 fll_ratio;
653 u16 fllclk_div;
654 u16 fll_slow_lock_ref;
655 u16 n;
656 u16 k;
657 };
658
659 /* The size in bits of the FLL divide multiplied by 10
660 * to allow rounding later */
661 #define FIXED_FLL_SIZE ((1 << 16) * 10)
662
663 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
664 unsigned int Fout)
665 {
666 u64 Kpart;
667 unsigned int K, Ndiv, Nmod, target;
668 unsigned int div;
669
670 BUG_ON(!Fout);
671
672 /* The FLL must run at 90-100MHz which is then scaled down to
673 * the output value by FLLCLK_DIV. */
674 target = Fout;
675 div = 1;
676 while (target < 90000000) {
677 div *= 2;
678 target *= 2;
679 }
680
681 if (target > 100000000)
682 printk(KERN_WARNING "wm8900: FLL rate %u out of range, Fref=%u"
683 " Fout=%u\n", target, Fref, Fout);
684 if (div > 32) {
685 printk(KERN_ERR "wm8900: Invalid FLL division rate %u, "
686 "Fref=%u, Fout=%u, target=%u\n",
687 div, Fref, Fout, target);
688 return -EINVAL;
689 }
690
691 fll_div->fllclk_div = div >> 2;
692
693 if (Fref < 48000)
694 fll_div->fll_slow_lock_ref = 1;
695 else
696 fll_div->fll_slow_lock_ref = 0;
697
698 Ndiv = target / Fref;
699
700 if (Fref < 1000000)
701 fll_div->fll_ratio = 8;
702 else
703 fll_div->fll_ratio = 1;
704
705 fll_div->n = Ndiv / fll_div->fll_ratio;
706 Nmod = (target / fll_div->fll_ratio) % Fref;
707
708 /* Calculate fractional part - scale up so we can round. */
709 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
710
711 do_div(Kpart, Fref);
712
713 K = Kpart & 0xFFFFFFFF;
714
715 if ((K % 10) >= 5)
716 K += 5;
717
718 /* Move down to proper range now rounding is done */
719 fll_div->k = K / 10;
720
721 BUG_ON(target != Fout * (fll_div->fllclk_div << 2));
722 BUG_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n);
723
724 return 0;
725 }
726
727 static int wm8900_set_fll(struct snd_soc_codec *codec,
728 int fll_id, unsigned int freq_in, unsigned int freq_out)
729 {
730 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
731 struct _fll_div fll_div;
732
733 if (wm8900->fll_in == freq_in && wm8900->fll_out == freq_out)
734 return 0;
735
736 /* The digital side should be disabled during any change. */
737 snd_soc_update_bits(codec, WM8900_REG_POWER1,
738 WM8900_REG_POWER1_FLL_ENA, 0);
739
740 /* Disable the FLL? */
741 if (!freq_in || !freq_out) {
742 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
743 WM8900_REG_CLOCKING1_MCLK_SRC, 0);
744 snd_soc_update_bits(codec, WM8900_REG_FLLCTL1,
745 WM8900_REG_FLLCTL1_OSC_ENA, 0);
746 wm8900->fll_in = freq_in;
747 wm8900->fll_out = freq_out;
748
749 return 0;
750 }
751
752 if (fll_factors(&fll_div, freq_in, freq_out) != 0)
753 goto reenable;
754
755 wm8900->fll_in = freq_in;
756 wm8900->fll_out = freq_out;
757
758 /* The osclilator *MUST* be enabled before we enable the
759 * digital circuit. */
760 snd_soc_write(codec, WM8900_REG_FLLCTL1,
761 fll_div.fll_ratio | WM8900_REG_FLLCTL1_OSC_ENA);
762
763 snd_soc_write(codec, WM8900_REG_FLLCTL4, fll_div.n >> 5);
764 snd_soc_write(codec, WM8900_REG_FLLCTL5,
765 (fll_div.fllclk_div << 6) | (fll_div.n & 0x1f));
766
767 if (fll_div.k) {
768 snd_soc_write(codec, WM8900_REG_FLLCTL2,
769 (fll_div.k >> 8) | 0x100);
770 snd_soc_write(codec, WM8900_REG_FLLCTL3, fll_div.k & 0xff);
771 } else
772 snd_soc_write(codec, WM8900_REG_FLLCTL2, 0);
773
774 if (fll_div.fll_slow_lock_ref)
775 snd_soc_write(codec, WM8900_REG_FLLCTL6,
776 WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF);
777 else
778 snd_soc_write(codec, WM8900_REG_FLLCTL6, 0);
779
780 snd_soc_update_bits(codec, WM8900_REG_POWER1,
781 WM8900_REG_POWER1_FLL_ENA,
782 WM8900_REG_POWER1_FLL_ENA);
783
784 reenable:
785 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
786 WM8900_REG_CLOCKING1_MCLK_SRC,
787 WM8900_REG_CLOCKING1_MCLK_SRC);
788 return 0;
789 }
790
791 static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
792 int source, unsigned int freq_in, unsigned int freq_out)
793 {
794 return wm8900_set_fll(codec_dai->codec, pll_id, freq_in, freq_out);
795 }
796
797 static int wm8900_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
798 int div_id, int div)
799 {
800 struct snd_soc_codec *codec = codec_dai->codec;
801
802 switch (div_id) {
803 case WM8900_BCLK_DIV:
804 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
805 WM8900_REG_CLOCKING1_BCLK_MASK, div);
806 break;
807 case WM8900_OPCLK_DIV:
808 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
809 WM8900_REG_CLOCKING1_OPCLK_MASK, div);
810 break;
811 case WM8900_DAC_LRCLK:
812 snd_soc_update_bits(codec, WM8900_REG_AUDIO4,
813 WM8900_LRC_MASK, div);
814 break;
815 case WM8900_ADC_LRCLK:
816 snd_soc_update_bits(codec, WM8900_REG_AUDIO3,
817 WM8900_LRC_MASK, div);
818 break;
819 case WM8900_DAC_CLKDIV:
820 snd_soc_update_bits(codec, WM8900_REG_CLOCKING2,
821 WM8900_REG_CLOCKING2_DAC_CLKDIV, div);
822 break;
823 case WM8900_ADC_CLKDIV:
824 snd_soc_update_bits(codec, WM8900_REG_CLOCKING2,
825 WM8900_REG_CLOCKING2_ADC_CLKDIV, div);
826 break;
827 case WM8900_LRCLK_MODE:
828 snd_soc_update_bits(codec, WM8900_REG_DACCTRL,
829 WM8900_REG_DACCTRL_AIF_LRCLKRATE, div);
830 break;
831 default:
832 return -EINVAL;
833 }
834
835 return 0;
836 }
837
838
839 static int wm8900_set_dai_fmt(struct snd_soc_dai *codec_dai,
840 unsigned int fmt)
841 {
842 struct snd_soc_codec *codec = codec_dai->codec;
843 unsigned int clocking1, aif1, aif3, aif4;
844
845 clocking1 = snd_soc_read(codec, WM8900_REG_CLOCKING1);
846 aif1 = snd_soc_read(codec, WM8900_REG_AUDIO1);
847 aif3 = snd_soc_read(codec, WM8900_REG_AUDIO3);
848 aif4 = snd_soc_read(codec, WM8900_REG_AUDIO4);
849
850 /* set master/slave audio interface */
851 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
852 case SND_SOC_DAIFMT_CBS_CFS:
853 clocking1 &= ~WM8900_REG_CLOCKING1_BCLK_DIR;
854 aif3 &= ~WM8900_REG_AUDIO3_ADCLRC_DIR;
855 aif4 &= ~WM8900_REG_AUDIO4_DACLRC_DIR;
856 break;
857 case SND_SOC_DAIFMT_CBS_CFM:
858 clocking1 &= ~WM8900_REG_CLOCKING1_BCLK_DIR;
859 aif3 |= WM8900_REG_AUDIO3_ADCLRC_DIR;
860 aif4 |= WM8900_REG_AUDIO4_DACLRC_DIR;
861 break;
862 case SND_SOC_DAIFMT_CBM_CFM:
863 clocking1 |= WM8900_REG_CLOCKING1_BCLK_DIR;
864 aif3 |= WM8900_REG_AUDIO3_ADCLRC_DIR;
865 aif4 |= WM8900_REG_AUDIO4_DACLRC_DIR;
866 break;
867 case SND_SOC_DAIFMT_CBM_CFS:
868 clocking1 |= WM8900_REG_CLOCKING1_BCLK_DIR;
869 aif3 &= ~WM8900_REG_AUDIO3_ADCLRC_DIR;
870 aif4 &= ~WM8900_REG_AUDIO4_DACLRC_DIR;
871 break;
872 default:
873 return -EINVAL;
874 }
875
876 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
877 case SND_SOC_DAIFMT_DSP_A:
878 aif1 |= WM8900_REG_AUDIO1_AIF_FMT_MASK;
879 aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV;
880 break;
881 case SND_SOC_DAIFMT_DSP_B:
882 aif1 |= WM8900_REG_AUDIO1_AIF_FMT_MASK;
883 aif1 |= WM8900_REG_AUDIO1_LRCLK_INV;
884 break;
885 case SND_SOC_DAIFMT_I2S:
886 aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK;
887 aif1 |= 0x10;
888 break;
889 case SND_SOC_DAIFMT_RIGHT_J:
890 aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK;
891 break;
892 case SND_SOC_DAIFMT_LEFT_J:
893 aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK;
894 aif1 |= 0x8;
895 break;
896 default:
897 return -EINVAL;
898 }
899
900 /* Clock inversion */
901 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
902 case SND_SOC_DAIFMT_DSP_A:
903 case SND_SOC_DAIFMT_DSP_B:
904 /* frame inversion not valid for DSP modes */
905 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
906 case SND_SOC_DAIFMT_NB_NF:
907 aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV;
908 break;
909 case SND_SOC_DAIFMT_IB_NF:
910 aif1 |= WM8900_REG_AUDIO1_BCLK_INV;
911 break;
912 default:
913 return -EINVAL;
914 }
915 break;
916 case SND_SOC_DAIFMT_I2S:
917 case SND_SOC_DAIFMT_RIGHT_J:
918 case SND_SOC_DAIFMT_LEFT_J:
919 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
920 case SND_SOC_DAIFMT_NB_NF:
921 aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV;
922 aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV;
923 break;
924 case SND_SOC_DAIFMT_IB_IF:
925 aif1 |= WM8900_REG_AUDIO1_BCLK_INV;
926 aif1 |= WM8900_REG_AUDIO1_LRCLK_INV;
927 break;
928 case SND_SOC_DAIFMT_IB_NF:
929 aif1 |= WM8900_REG_AUDIO1_BCLK_INV;
930 aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV;
931 break;
932 case SND_SOC_DAIFMT_NB_IF:
933 aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV;
934 aif1 |= WM8900_REG_AUDIO1_LRCLK_INV;
935 break;
936 default:
937 return -EINVAL;
938 }
939 break;
940 default:
941 return -EINVAL;
942 }
943
944 snd_soc_write(codec, WM8900_REG_CLOCKING1, clocking1);
945 snd_soc_write(codec, WM8900_REG_AUDIO1, aif1);
946 snd_soc_write(codec, WM8900_REG_AUDIO3, aif3);
947 snd_soc_write(codec, WM8900_REG_AUDIO4, aif4);
948
949 return 0;
950 }
951
952 static int wm8900_digital_mute(struct snd_soc_dai *codec_dai, int mute)
953 {
954 struct snd_soc_codec *codec = codec_dai->codec;
955 u16 reg;
956
957 reg = snd_soc_read(codec, WM8900_REG_DACCTRL);
958
959 if (mute)
960 reg |= WM8900_REG_DACCTRL_MUTE;
961 else
962 reg &= ~WM8900_REG_DACCTRL_MUTE;
963
964 snd_soc_write(codec, WM8900_REG_DACCTRL, reg);
965
966 return 0;
967 }
968
969 #define WM8900_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
970 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
971 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
972
973 #define WM8900_PCM_FORMATS \
974 (SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \
975 SNDRV_PCM_FORMAT_S24_LE)
976
977 static const struct snd_soc_dai_ops wm8900_dai_ops = {
978 .hw_params = wm8900_hw_params,
979 .set_clkdiv = wm8900_set_dai_clkdiv,
980 .set_pll = wm8900_set_dai_pll,
981 .set_fmt = wm8900_set_dai_fmt,
982 .digital_mute = wm8900_digital_mute,
983 };
984
985 static struct snd_soc_dai_driver wm8900_dai = {
986 .name = "wm8900-hifi",
987 .playback = {
988 .stream_name = "HiFi Playback",
989 .channels_min = 1,
990 .channels_max = 2,
991 .rates = WM8900_RATES,
992 .formats = WM8900_PCM_FORMATS,
993 },
994 .capture = {
995 .stream_name = "HiFi Capture",
996 .channels_min = 1,
997 .channels_max = 2,
998 .rates = WM8900_RATES,
999 .formats = WM8900_PCM_FORMATS,
1000 },
1001 .ops = &wm8900_dai_ops,
1002 };
1003
1004 static int wm8900_set_bias_level(struct snd_soc_codec *codec,
1005 enum snd_soc_bias_level level)
1006 {
1007 u16 reg;
1008
1009 switch (level) {
1010 case SND_SOC_BIAS_ON:
1011 /* Enable thermal shutdown */
1012 snd_soc_update_bits(codec, WM8900_REG_GPIO,
1013 WM8900_REG_GPIO_TEMP_ENA,
1014 WM8900_REG_GPIO_TEMP_ENA);
1015 snd_soc_update_bits(codec, WM8900_REG_ADDCTL,
1016 WM8900_REG_ADDCTL_TEMP_SD,
1017 WM8900_REG_ADDCTL_TEMP_SD);
1018 break;
1019
1020 case SND_SOC_BIAS_PREPARE:
1021 break;
1022
1023 case SND_SOC_BIAS_STANDBY:
1024 /* Charge capacitors if initial power up */
1025 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1026 /* STARTUP_BIAS_ENA on */
1027 snd_soc_write(codec, WM8900_REG_POWER1,
1028 WM8900_REG_POWER1_STARTUP_BIAS_ENA);
1029
1030 /* Startup bias mode */
1031 snd_soc_write(codec, WM8900_REG_ADDCTL,
1032 WM8900_REG_ADDCTL_BIAS_SRC |
1033 WM8900_REG_ADDCTL_VMID_SOFTST);
1034
1035 /* VMID 2x50k */
1036 snd_soc_write(codec, WM8900_REG_POWER1,
1037 WM8900_REG_POWER1_STARTUP_BIAS_ENA | 0x1);
1038
1039 /* Allow capacitors to charge */
1040 schedule_timeout_interruptible(msecs_to_jiffies(400));
1041
1042 /* Enable bias */
1043 snd_soc_write(codec, WM8900_REG_POWER1,
1044 WM8900_REG_POWER1_STARTUP_BIAS_ENA |
1045 WM8900_REG_POWER1_BIAS_ENA | 0x1);
1046
1047 snd_soc_write(codec, WM8900_REG_ADDCTL, 0);
1048
1049 snd_soc_write(codec, WM8900_REG_POWER1,
1050 WM8900_REG_POWER1_BIAS_ENA | 0x1);
1051 }
1052
1053 reg = snd_soc_read(codec, WM8900_REG_POWER1);
1054 snd_soc_write(codec, WM8900_REG_POWER1,
1055 (reg & WM8900_REG_POWER1_FLL_ENA) |
1056 WM8900_REG_POWER1_BIAS_ENA | 0x1);
1057 snd_soc_write(codec, WM8900_REG_POWER2,
1058 WM8900_REG_POWER2_SYSCLK_ENA);
1059 snd_soc_write(codec, WM8900_REG_POWER3, 0);
1060 break;
1061
1062 case SND_SOC_BIAS_OFF:
1063 /* Startup bias enable */
1064 reg = snd_soc_read(codec, WM8900_REG_POWER1);
1065 snd_soc_write(codec, WM8900_REG_POWER1,
1066 reg & WM8900_REG_POWER1_STARTUP_BIAS_ENA);
1067 snd_soc_write(codec, WM8900_REG_ADDCTL,
1068 WM8900_REG_ADDCTL_BIAS_SRC |
1069 WM8900_REG_ADDCTL_VMID_SOFTST);
1070
1071 /* Discharge caps */
1072 snd_soc_write(codec, WM8900_REG_POWER1,
1073 WM8900_REG_POWER1_STARTUP_BIAS_ENA);
1074 schedule_timeout_interruptible(msecs_to_jiffies(500));
1075
1076 /* Remove clamp */
1077 snd_soc_write(codec, WM8900_REG_HPCTL1, 0);
1078
1079 /* Power down */
1080 snd_soc_write(codec, WM8900_REG_ADDCTL, 0);
1081 snd_soc_write(codec, WM8900_REG_POWER1, 0);
1082 snd_soc_write(codec, WM8900_REG_POWER2, 0);
1083 snd_soc_write(codec, WM8900_REG_POWER3, 0);
1084
1085 /* Need to let things settle before stopping the clock
1086 * to ensure that restart works, see "Stopping the
1087 * master clock" in the datasheet. */
1088 schedule_timeout_interruptible(msecs_to_jiffies(1));
1089 snd_soc_write(codec, WM8900_REG_POWER2,
1090 WM8900_REG_POWER2_SYSCLK_ENA);
1091 break;
1092 }
1093 codec->dapm.bias_level = level;
1094 return 0;
1095 }
1096
1097 static int wm8900_suspend(struct snd_soc_codec *codec)
1098 {
1099 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
1100 int fll_out = wm8900->fll_out;
1101 int fll_in = wm8900->fll_in;
1102 int ret;
1103
1104 /* Stop the FLL in an orderly fashion */
1105 ret = wm8900_set_fll(codec, 0, 0, 0);
1106 if (ret != 0) {
1107 dev_err(codec->dev, "Failed to stop FLL\n");
1108 return ret;
1109 }
1110
1111 wm8900->fll_out = fll_out;
1112 wm8900->fll_in = fll_in;
1113
1114 wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF);
1115
1116 return 0;
1117 }
1118
1119 static int wm8900_resume(struct snd_soc_codec *codec)
1120 {
1121 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
1122 u16 *cache;
1123 int i, ret;
1124
1125 cache = kmemdup(codec->reg_cache, sizeof(wm8900_reg_defaults),
1126 GFP_KERNEL);
1127
1128 wm8900_reset(codec);
1129 wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1130
1131 /* Restart the FLL? */
1132 if (wm8900->fll_out) {
1133 int fll_out = wm8900->fll_out;
1134 int fll_in = wm8900->fll_in;
1135
1136 wm8900->fll_in = 0;
1137 wm8900->fll_out = 0;
1138
1139 ret = wm8900_set_fll(codec, 0, fll_in, fll_out);
1140 if (ret != 0) {
1141 dev_err(codec->dev, "Failed to restart FLL\n");
1142 kfree(cache);
1143 return ret;
1144 }
1145 }
1146
1147 if (cache) {
1148 for (i = 0; i < WM8900_MAXREG; i++)
1149 snd_soc_write(codec, i, cache[i]);
1150 kfree(cache);
1151 } else
1152 dev_err(codec->dev, "Unable to allocate register cache\n");
1153
1154 return 0;
1155 }
1156
1157 static int wm8900_probe(struct snd_soc_codec *codec)
1158 {
1159 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
1160 int ret = 0, reg;
1161
1162 ret = snd_soc_codec_set_cache_io(codec, 8, 16, wm8900->control_type);
1163 if (ret != 0) {
1164 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1165 return ret;
1166 }
1167
1168 reg = snd_soc_read(codec, WM8900_REG_ID);
1169 if (reg != 0x8900) {
1170 dev_err(codec->dev, "Device is not a WM8900 - ID %x\n", reg);
1171 return -ENODEV;
1172 }
1173
1174 wm8900_reset(codec);
1175
1176 /* Turn the chip on */
1177 wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1178
1179 /* Latch the volume update bits */
1180 snd_soc_update_bits(codec, WM8900_REG_LINVOL, 0x100, 0x100);
1181 snd_soc_update_bits(codec, WM8900_REG_RINVOL, 0x100, 0x100);
1182 snd_soc_update_bits(codec, WM8900_REG_LOUT1CTL, 0x100, 0x100);
1183 snd_soc_update_bits(codec, WM8900_REG_ROUT1CTL, 0x100, 0x100);
1184 snd_soc_update_bits(codec, WM8900_REG_LOUT2CTL, 0x100, 0x100);
1185 snd_soc_update_bits(codec, WM8900_REG_ROUT2CTL, 0x100, 0x100);
1186 snd_soc_update_bits(codec, WM8900_REG_LDAC_DV, 0x100, 0x100);
1187 snd_soc_update_bits(codec, WM8900_REG_RDAC_DV, 0x100, 0x100);
1188 snd_soc_update_bits(codec, WM8900_REG_LADC_DV, 0x100, 0x100);
1189 snd_soc_update_bits(codec, WM8900_REG_RADC_DV, 0x100, 0x100);
1190
1191 /* Set the DAC and mixer output bias */
1192 snd_soc_write(codec, WM8900_REG_OUTBIASCTL, 0x81);
1193
1194 return 0;
1195 }
1196
1197 /* power down chip */
1198 static int wm8900_remove(struct snd_soc_codec *codec)
1199 {
1200 wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF);
1201 return 0;
1202 }
1203
1204 static struct snd_soc_codec_driver soc_codec_dev_wm8900 = {
1205 .probe = wm8900_probe,
1206 .remove = wm8900_remove,
1207 .suspend = wm8900_suspend,
1208 .resume = wm8900_resume,
1209 .set_bias_level = wm8900_set_bias_level,
1210 .volatile_register = wm8900_volatile_register,
1211 .reg_cache_size = ARRAY_SIZE(wm8900_reg_defaults),
1212 .reg_word_size = sizeof(u16),
1213 .reg_cache_default = wm8900_reg_defaults,
1214
1215 .controls = wm8900_snd_controls,
1216 .num_controls = ARRAY_SIZE(wm8900_snd_controls),
1217 .dapm_widgets = wm8900_dapm_widgets,
1218 .num_dapm_widgets = ARRAY_SIZE(wm8900_dapm_widgets),
1219 .dapm_routes = wm8900_dapm_routes,
1220 .num_dapm_routes = ARRAY_SIZE(wm8900_dapm_routes),
1221 };
1222
1223 #if defined(CONFIG_SPI_MASTER)
1224 static int __devinit wm8900_spi_probe(struct spi_device *spi)
1225 {
1226 struct wm8900_priv *wm8900;
1227 int ret;
1228
1229 wm8900 = kzalloc(sizeof(struct wm8900_priv), GFP_KERNEL);
1230 if (wm8900 == NULL)
1231 return -ENOMEM;
1232
1233 wm8900->control_type = SND_SOC_SPI;
1234 spi_set_drvdata(spi, wm8900);
1235
1236 ret = snd_soc_register_codec(&spi->dev,
1237 &soc_codec_dev_wm8900, &wm8900_dai, 1);
1238 if (ret < 0)
1239 kfree(wm8900);
1240 return ret;
1241 }
1242
1243 static int __devexit wm8900_spi_remove(struct spi_device *spi)
1244 {
1245 snd_soc_unregister_codec(&spi->dev);
1246 kfree(spi_get_drvdata(spi));
1247 return 0;
1248 }
1249
1250 static struct spi_driver wm8900_spi_driver = {
1251 .driver = {
1252 .name = "wm8900",
1253 .owner = THIS_MODULE,
1254 },
1255 .probe = wm8900_spi_probe,
1256 .remove = __devexit_p(wm8900_spi_remove),
1257 };
1258 #endif /* CONFIG_SPI_MASTER */
1259
1260 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1261 static __devinit int wm8900_i2c_probe(struct i2c_client *i2c,
1262 const struct i2c_device_id *id)
1263 {
1264 struct wm8900_priv *wm8900;
1265 int ret;
1266
1267 wm8900 = kzalloc(sizeof(struct wm8900_priv), GFP_KERNEL);
1268 if (wm8900 == NULL)
1269 return -ENOMEM;
1270
1271 i2c_set_clientdata(i2c, wm8900);
1272 wm8900->control_type = SND_SOC_I2C;
1273
1274 ret = snd_soc_register_codec(&i2c->dev,
1275 &soc_codec_dev_wm8900, &wm8900_dai, 1);
1276 if (ret < 0)
1277 kfree(wm8900);
1278 return ret;
1279 }
1280
1281 static __devexit int wm8900_i2c_remove(struct i2c_client *client)
1282 {
1283 snd_soc_unregister_codec(&client->dev);
1284 kfree(i2c_get_clientdata(client));
1285 return 0;
1286 }
1287
1288 static const struct i2c_device_id wm8900_i2c_id[] = {
1289 { "wm8900", 0 },
1290 { }
1291 };
1292 MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id);
1293
1294 static struct i2c_driver wm8900_i2c_driver = {
1295 .driver = {
1296 .name = "wm8900",
1297 .owner = THIS_MODULE,
1298 },
1299 .probe = wm8900_i2c_probe,
1300 .remove = __devexit_p(wm8900_i2c_remove),
1301 .id_table = wm8900_i2c_id,
1302 };
1303 #endif
1304
1305 static int __init wm8900_modinit(void)
1306 {
1307 int ret = 0;
1308 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1309 ret = i2c_add_driver(&wm8900_i2c_driver);
1310 if (ret != 0) {
1311 printk(KERN_ERR "Failed to register wm8900 I2C driver: %d\n",
1312 ret);
1313 }
1314 #endif
1315 #if defined(CONFIG_SPI_MASTER)
1316 ret = spi_register_driver(&wm8900_spi_driver);
1317 if (ret != 0) {
1318 printk(KERN_ERR "Failed to register wm8900 SPI driver: %d\n",
1319 ret);
1320 }
1321 #endif
1322 return ret;
1323 }
1324 module_init(wm8900_modinit);
1325
1326 static void __exit wm8900_exit(void)
1327 {
1328 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1329 i2c_del_driver(&wm8900_i2c_driver);
1330 #endif
1331 #if defined(CONFIG_SPI_MASTER)
1332 spi_unregister_driver(&wm8900_spi_driver);
1333 #endif
1334 }
1335 module_exit(wm8900_exit);
1336
1337 MODULE_DESCRIPTION("ASoC WM8900 driver");
1338 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>");
1339 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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