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ASoC: samsung: fix module_device_table
[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/regmap.h>
27 #include <linux/spi/spi.h>
28 #include <linux/slab.h>
29 #include <sound/core.h>
30 #include <sound/pcm.h>
31 #include <sound/pcm_params.h>
32 #include <sound/soc.h>
33 #include <sound/initval.h>
34 #include <sound/tlv.h>
35
36 #include "wm8900.h"
37
38 /* WM8900 register space */
39 #define WM8900_REG_RESET 0x0
40 #define WM8900_REG_ID 0x0
41 #define WM8900_REG_POWER1 0x1
42 #define WM8900_REG_POWER2 0x2
43 #define WM8900_REG_POWER3 0x3
44 #define WM8900_REG_AUDIO1 0x4
45 #define WM8900_REG_AUDIO2 0x5
46 #define WM8900_REG_CLOCKING1 0x6
47 #define WM8900_REG_CLOCKING2 0x7
48 #define WM8900_REG_AUDIO3 0x8
49 #define WM8900_REG_AUDIO4 0x9
50 #define WM8900_REG_DACCTRL 0xa
51 #define WM8900_REG_LDAC_DV 0xb
52 #define WM8900_REG_RDAC_DV 0xc
53 #define WM8900_REG_SIDETONE 0xd
54 #define WM8900_REG_ADCCTRL 0xe
55 #define WM8900_REG_LADC_DV 0xf
56 #define WM8900_REG_RADC_DV 0x10
57 #define WM8900_REG_GPIO 0x12
58 #define WM8900_REG_INCTL 0x15
59 #define WM8900_REG_LINVOL 0x16
60 #define WM8900_REG_RINVOL 0x17
61 #define WM8900_REG_INBOOSTMIX1 0x18
62 #define WM8900_REG_INBOOSTMIX2 0x19
63 #define WM8900_REG_ADCPATH 0x1a
64 #define WM8900_REG_AUXBOOST 0x1b
65 #define WM8900_REG_ADDCTL 0x1e
66 #define WM8900_REG_FLLCTL1 0x24
67 #define WM8900_REG_FLLCTL2 0x25
68 #define WM8900_REG_FLLCTL3 0x26
69 #define WM8900_REG_FLLCTL4 0x27
70 #define WM8900_REG_FLLCTL5 0x28
71 #define WM8900_REG_FLLCTL6 0x29
72 #define WM8900_REG_LOUTMIXCTL1 0x2c
73 #define WM8900_REG_ROUTMIXCTL1 0x2d
74 #define WM8900_REG_BYPASS1 0x2e
75 #define WM8900_REG_BYPASS2 0x2f
76 #define WM8900_REG_AUXOUT_CTL 0x30
77 #define WM8900_REG_LOUT1CTL 0x33
78 #define WM8900_REG_ROUT1CTL 0x34
79 #define WM8900_REG_LOUT2CTL 0x35
80 #define WM8900_REG_ROUT2CTL 0x36
81 #define WM8900_REG_HPCTL1 0x3a
82 #define WM8900_REG_OUTBIASCTL 0x73
83
84 #define WM8900_MAXREG 0x80
85
86 #define WM8900_REG_ADDCTL_OUT1_DIS 0x80
87 #define WM8900_REG_ADDCTL_OUT2_DIS 0x40
88 #define WM8900_REG_ADDCTL_VMID_DIS 0x20
89 #define WM8900_REG_ADDCTL_BIAS_SRC 0x10
90 #define WM8900_REG_ADDCTL_VMID_SOFTST 0x04
91 #define WM8900_REG_ADDCTL_TEMP_SD 0x02
92
93 #define WM8900_REG_GPIO_TEMP_ENA 0x2
94
95 #define WM8900_REG_POWER1_STARTUP_BIAS_ENA 0x0100
96 #define WM8900_REG_POWER1_BIAS_ENA 0x0008
97 #define WM8900_REG_POWER1_VMID_BUF_ENA 0x0004
98 #define WM8900_REG_POWER1_FLL_ENA 0x0040
99
100 #define WM8900_REG_POWER2_SYSCLK_ENA 0x8000
101 #define WM8900_REG_POWER2_ADCL_ENA 0x0002
102 #define WM8900_REG_POWER2_ADCR_ENA 0x0001
103
104 #define WM8900_REG_POWER3_DACL_ENA 0x0002
105 #define WM8900_REG_POWER3_DACR_ENA 0x0001
106
107 #define WM8900_REG_AUDIO1_AIF_FMT_MASK 0x0018
108 #define WM8900_REG_AUDIO1_LRCLK_INV 0x0080
109 #define WM8900_REG_AUDIO1_BCLK_INV 0x0100
110
111 #define WM8900_REG_CLOCKING1_BCLK_DIR 0x1
112 #define WM8900_REG_CLOCKING1_MCLK_SRC 0x100
113 #define WM8900_REG_CLOCKING1_BCLK_MASK 0x01e
114 #define WM8900_REG_CLOCKING1_OPCLK_MASK 0x7000
115
116 #define WM8900_REG_CLOCKING2_ADC_CLKDIV 0xe0
117 #define WM8900_REG_CLOCKING2_DAC_CLKDIV 0x1c
118
119 #define WM8900_REG_DACCTRL_MUTE 0x004
120 #define WM8900_REG_DACCTRL_DAC_SB_FILT 0x100
121 #define WM8900_REG_DACCTRL_AIF_LRCLKRATE 0x400
122
123 #define WM8900_REG_AUDIO3_ADCLRC_DIR 0x0800
124
125 #define WM8900_REG_AUDIO4_DACLRC_DIR 0x0800
126
127 #define WM8900_REG_FLLCTL1_OSC_ENA 0x100
128
129 #define WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF 0x100
130
131 #define WM8900_REG_HPCTL1_HP_IPSTAGE_ENA 0x80
132 #define WM8900_REG_HPCTL1_HP_OPSTAGE_ENA 0x40
133 #define WM8900_REG_HPCTL1_HP_CLAMP_IP 0x20
134 #define WM8900_REG_HPCTL1_HP_CLAMP_OP 0x10
135 #define WM8900_REG_HPCTL1_HP_SHORT 0x08
136 #define WM8900_REG_HPCTL1_HP_SHORT2 0x04
137
138 #define WM8900_LRC_MASK 0x03ff
139
140 struct wm8900_priv {
141 struct regmap *regmap;
142
143 u32 fll_in; /* FLL input frequency */
144 u32 fll_out; /* FLL output frequency */
145 };
146
147 /*
148 * wm8900 register cache. We can't read the entire register space and we
149 * have slow control buses so we cache the registers.
150 */
151 static const struct reg_default wm8900_reg_defaults[] = {
152 { 1, 0x0000 },
153 { 2, 0xc000 },
154 { 3, 0x0000 },
155 { 4, 0x4050 },
156 { 5, 0x4000 },
157 { 6, 0x0008 },
158 { 7, 0x0000 },
159 { 8, 0x0040 },
160 { 9, 0x0040 },
161 { 10, 0x1004 },
162 { 11, 0x00c0 },
163 { 12, 0x00c0 },
164 { 13, 0x0000 },
165 { 14, 0x0100 },
166 { 15, 0x00c0 },
167 { 16, 0x00c0 },
168 { 17, 0x0000 },
169 { 18, 0xb001 },
170 { 19, 0x0000 },
171 { 20, 0x0000 },
172 { 21, 0x0044 },
173 { 22, 0x004c },
174 { 23, 0x004c },
175 { 24, 0x0044 },
176 { 25, 0x0044 },
177 { 26, 0x0000 },
178 { 27, 0x0044 },
179 { 28, 0x0000 },
180 { 29, 0x0000 },
181 { 30, 0x0002 },
182 { 31, 0x0000 },
183 { 32, 0x0000 },
184 { 33, 0x0000 },
185 { 34, 0x0000 },
186 { 35, 0x0000 },
187 { 36, 0x0008 },
188 { 37, 0x0000 },
189 { 38, 0x0000 },
190 { 39, 0x0008 },
191 { 40, 0x0097 },
192 { 41, 0x0100 },
193 { 42, 0x0000 },
194 { 43, 0x0000 },
195 { 44, 0x0050 },
196 { 45, 0x0050 },
197 { 46, 0x0055 },
198 { 47, 0x0055 },
199 { 48, 0x0055 },
200 { 49, 0x0000 },
201 { 50, 0x0000 },
202 { 51, 0x0079 },
203 { 52, 0x0079 },
204 { 53, 0x0079 },
205 { 54, 0x0079 },
206 { 55, 0x0000 },
207 };
208
209 static bool wm8900_volatile_register(struct device *dev, unsigned int reg)
210 {
211 switch (reg) {
212 case WM8900_REG_ID:
213 return true;
214 default:
215 return false;
216 }
217 }
218
219 static void wm8900_reset(struct snd_soc_codec *codec)
220 {
221 snd_soc_write(codec, WM8900_REG_RESET, 0);
222 }
223
224 static int wm8900_hp_event(struct snd_soc_dapm_widget *w,
225 struct snd_kcontrol *kcontrol, int event)
226 {
227 struct snd_soc_codec *codec = w->codec;
228 u16 hpctl1 = snd_soc_read(codec, WM8900_REG_HPCTL1);
229
230 switch (event) {
231 case SND_SOC_DAPM_PRE_PMU:
232 /* Clamp headphone outputs */
233 hpctl1 = WM8900_REG_HPCTL1_HP_CLAMP_IP |
234 WM8900_REG_HPCTL1_HP_CLAMP_OP;
235 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
236 break;
237
238 case SND_SOC_DAPM_POST_PMU:
239 /* Enable the input stage */
240 hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_IP;
241 hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT |
242 WM8900_REG_HPCTL1_HP_SHORT2 |
243 WM8900_REG_HPCTL1_HP_IPSTAGE_ENA;
244 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
245
246 msleep(400);
247
248 /* Enable the output stage */
249 hpctl1 &= ~WM8900_REG_HPCTL1_HP_CLAMP_OP;
250 hpctl1 |= WM8900_REG_HPCTL1_HP_OPSTAGE_ENA;
251 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
252
253 /* Remove the shorts */
254 hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT2;
255 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
256 hpctl1 &= ~WM8900_REG_HPCTL1_HP_SHORT;
257 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
258 break;
259
260 case SND_SOC_DAPM_PRE_PMD:
261 /* Short the output */
262 hpctl1 |= WM8900_REG_HPCTL1_HP_SHORT;
263 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
264
265 /* Disable the output stage */
266 hpctl1 &= ~WM8900_REG_HPCTL1_HP_OPSTAGE_ENA;
267 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
268
269 /* Clamp the outputs and power down input */
270 hpctl1 |= WM8900_REG_HPCTL1_HP_CLAMP_IP |
271 WM8900_REG_HPCTL1_HP_CLAMP_OP;
272 hpctl1 &= ~WM8900_REG_HPCTL1_HP_IPSTAGE_ENA;
273 snd_soc_write(codec, WM8900_REG_HPCTL1, hpctl1);
274 break;
275
276 case SND_SOC_DAPM_POST_PMD:
277 /* Disable everything */
278 snd_soc_write(codec, WM8900_REG_HPCTL1, 0);
279 break;
280
281 default:
282 BUG();
283 }
284
285 return 0;
286 }
287
288 static const DECLARE_TLV_DB_SCALE(out_pga_tlv, -5700, 100, 0);
289
290 static const DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 0);
291
292 static const DECLARE_TLV_DB_SCALE(in_boost_tlv, -1200, 600, 0);
293
294 static const DECLARE_TLV_DB_SCALE(in_pga_tlv, -1200, 100, 0);
295
296 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
297
298 static const DECLARE_TLV_DB_SCALE(dac_tlv, -7200, 75, 1);
299
300 static const DECLARE_TLV_DB_SCALE(adc_svol_tlv, -3600, 300, 0);
301
302 static const DECLARE_TLV_DB_SCALE(adc_tlv, -7200, 75, 1);
303
304 static const char *mic_bias_level_txt[] = { "0.9*AVDD", "0.65*AVDD" };
305
306 static const struct soc_enum mic_bias_level =
307 SOC_ENUM_SINGLE(WM8900_REG_INCTL, 8, 2, mic_bias_level_txt);
308
309 static const char *dac_mute_rate_txt[] = { "Fast", "Slow" };
310
311 static const struct soc_enum dac_mute_rate =
312 SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 7, 2, dac_mute_rate_txt);
313
314 static const char *dac_deemphasis_txt[] = {
315 "Disabled", "32kHz", "44.1kHz", "48kHz"
316 };
317
318 static const struct soc_enum dac_deemphasis =
319 SOC_ENUM_SINGLE(WM8900_REG_DACCTRL, 4, 4, dac_deemphasis_txt);
320
321 static const char *adc_hpf_cut_txt[] = {
322 "Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"
323 };
324
325 static const struct soc_enum adc_hpf_cut =
326 SOC_ENUM_SINGLE(WM8900_REG_ADCCTRL, 5, 4, adc_hpf_cut_txt);
327
328 static const char *lr_txt[] = {
329 "Left", "Right"
330 };
331
332 static const struct soc_enum aifl_src =
333 SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 15, 2, lr_txt);
334
335 static const struct soc_enum aifr_src =
336 SOC_ENUM_SINGLE(WM8900_REG_AUDIO1, 14, 2, lr_txt);
337
338 static const struct soc_enum dacl_src =
339 SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 15, 2, lr_txt);
340
341 static const struct soc_enum dacr_src =
342 SOC_ENUM_SINGLE(WM8900_REG_AUDIO2, 14, 2, lr_txt);
343
344 static const char *sidetone_txt[] = {
345 "Disabled", "Left ADC", "Right ADC"
346 };
347
348 static const struct soc_enum dacl_sidetone =
349 SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 2, 3, sidetone_txt);
350
351 static const struct soc_enum dacr_sidetone =
352 SOC_ENUM_SINGLE(WM8900_REG_SIDETONE, 0, 3, sidetone_txt);
353
354 static const struct snd_kcontrol_new wm8900_snd_controls[] = {
355 SOC_ENUM("Mic Bias Level", mic_bias_level),
356
357 SOC_SINGLE_TLV("Left Input PGA Volume", WM8900_REG_LINVOL, 0, 31, 0,
358 in_pga_tlv),
359 SOC_SINGLE("Left Input PGA Switch", WM8900_REG_LINVOL, 6, 1, 1),
360 SOC_SINGLE("Left Input PGA ZC Switch", WM8900_REG_LINVOL, 7, 1, 0),
361
362 SOC_SINGLE_TLV("Right Input PGA Volume", WM8900_REG_RINVOL, 0, 31, 0,
363 in_pga_tlv),
364 SOC_SINGLE("Right Input PGA Switch", WM8900_REG_RINVOL, 6, 1, 1),
365 SOC_SINGLE("Right Input PGA ZC Switch", WM8900_REG_RINVOL, 7, 1, 0),
366
367 SOC_SINGLE("DAC Soft Mute Switch", WM8900_REG_DACCTRL, 6, 1, 1),
368 SOC_ENUM("DAC Mute Rate", dac_mute_rate),
369 SOC_SINGLE("DAC Mono Switch", WM8900_REG_DACCTRL, 9, 1, 0),
370 SOC_ENUM("DAC Deemphasis", dac_deemphasis),
371 SOC_SINGLE("DAC Sigma-Delta Modulator Clock Switch", WM8900_REG_DACCTRL,
372 12, 1, 0),
373
374 SOC_SINGLE("ADC HPF Switch", WM8900_REG_ADCCTRL, 8, 1, 0),
375 SOC_ENUM("ADC HPF Cut-Off", adc_hpf_cut),
376 SOC_DOUBLE("ADC Invert Switch", WM8900_REG_ADCCTRL, 1, 0, 1, 0),
377 SOC_SINGLE_TLV("Left ADC Sidetone Volume", WM8900_REG_SIDETONE, 9, 12, 0,
378 adc_svol_tlv),
379 SOC_SINGLE_TLV("Right ADC Sidetone Volume", WM8900_REG_SIDETONE, 5, 12, 0,
380 adc_svol_tlv),
381 SOC_ENUM("Left Digital Audio Source", aifl_src),
382 SOC_ENUM("Right Digital Audio Source", aifr_src),
383
384 SOC_SINGLE_TLV("DAC Input Boost Volume", WM8900_REG_AUDIO2, 10, 4, 0,
385 dac_boost_tlv),
386 SOC_ENUM("Left DAC Source", dacl_src),
387 SOC_ENUM("Right DAC Source", dacr_src),
388 SOC_ENUM("Left DAC Sidetone", dacl_sidetone),
389 SOC_ENUM("Right DAC Sidetone", dacr_sidetone),
390 SOC_DOUBLE("DAC Invert Switch", WM8900_REG_DACCTRL, 1, 0, 1, 0),
391
392 SOC_DOUBLE_R_TLV("Digital Playback Volume",
393 WM8900_REG_LDAC_DV, WM8900_REG_RDAC_DV,
394 1, 96, 0, dac_tlv),
395 SOC_DOUBLE_R_TLV("Digital Capture Volume",
396 WM8900_REG_LADC_DV, WM8900_REG_RADC_DV, 1, 119, 0, adc_tlv),
397
398 SOC_SINGLE_TLV("LINPUT3 Bypass Volume", WM8900_REG_LOUTMIXCTL1, 4, 7, 0,
399 out_mix_tlv),
400 SOC_SINGLE_TLV("RINPUT3 Bypass Volume", WM8900_REG_ROUTMIXCTL1, 4, 7, 0,
401 out_mix_tlv),
402 SOC_SINGLE_TLV("Left AUX Bypass Volume", WM8900_REG_AUXOUT_CTL, 4, 7, 0,
403 out_mix_tlv),
404 SOC_SINGLE_TLV("Right AUX Bypass Volume", WM8900_REG_AUXOUT_CTL, 0, 7, 0,
405 out_mix_tlv),
406
407 SOC_SINGLE_TLV("LeftIn to RightOut Mixer Volume", WM8900_REG_BYPASS1, 0, 7, 0,
408 out_mix_tlv),
409 SOC_SINGLE_TLV("LeftIn to LeftOut Mixer Volume", WM8900_REG_BYPASS1, 4, 7, 0,
410 out_mix_tlv),
411 SOC_SINGLE_TLV("RightIn to LeftOut Mixer Volume", WM8900_REG_BYPASS2, 0, 7, 0,
412 out_mix_tlv),
413 SOC_SINGLE_TLV("RightIn to RightOut Mixer Volume", WM8900_REG_BYPASS2, 4, 7, 0,
414 out_mix_tlv),
415
416 SOC_SINGLE_TLV("IN2L Boost Volume", WM8900_REG_INBOOSTMIX1, 0, 3, 0,
417 in_boost_tlv),
418 SOC_SINGLE_TLV("IN3L Boost Volume", WM8900_REG_INBOOSTMIX1, 4, 3, 0,
419 in_boost_tlv),
420 SOC_SINGLE_TLV("IN2R Boost Volume", WM8900_REG_INBOOSTMIX2, 0, 3, 0,
421 in_boost_tlv),
422 SOC_SINGLE_TLV("IN3R Boost Volume", WM8900_REG_INBOOSTMIX2, 4, 3, 0,
423 in_boost_tlv),
424 SOC_SINGLE_TLV("Left AUX Boost Volume", WM8900_REG_AUXBOOST, 4, 3, 0,
425 in_boost_tlv),
426 SOC_SINGLE_TLV("Right AUX Boost Volume", WM8900_REG_AUXBOOST, 0, 3, 0,
427 in_boost_tlv),
428
429 SOC_DOUBLE_R_TLV("LINEOUT1 Volume", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL,
430 0, 63, 0, out_pga_tlv),
431 SOC_DOUBLE_R("LINEOUT1 Switch", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL,
432 6, 1, 1),
433 SOC_DOUBLE_R("LINEOUT1 ZC Switch", WM8900_REG_LOUT1CTL, WM8900_REG_ROUT1CTL,
434 7, 1, 0),
435
436 SOC_DOUBLE_R_TLV("LINEOUT2 Volume",
437 WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL,
438 0, 63, 0, out_pga_tlv),
439 SOC_DOUBLE_R("LINEOUT2 Switch",
440 WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, 6, 1, 1),
441 SOC_DOUBLE_R("LINEOUT2 ZC Switch",
442 WM8900_REG_LOUT2CTL, WM8900_REG_ROUT2CTL, 7, 1, 0),
443 SOC_SINGLE("LINEOUT2 LP -12dB", WM8900_REG_LOUTMIXCTL1,
444 0, 1, 1),
445
446 };
447
448 static const struct snd_kcontrol_new wm8900_dapm_loutput2_control =
449 SOC_DAPM_SINGLE("LINEOUT2L Switch", WM8900_REG_POWER3, 6, 1, 0);
450
451 static const struct snd_kcontrol_new wm8900_dapm_routput2_control =
452 SOC_DAPM_SINGLE("LINEOUT2R Switch", WM8900_REG_POWER3, 5, 1, 0);
453
454 static const struct snd_kcontrol_new wm8900_loutmix_controls[] = {
455 SOC_DAPM_SINGLE("LINPUT3 Bypass Switch", WM8900_REG_LOUTMIXCTL1, 7, 1, 0),
456 SOC_DAPM_SINGLE("AUX Bypass Switch", WM8900_REG_AUXOUT_CTL, 7, 1, 0),
457 SOC_DAPM_SINGLE("Left Input Mixer Switch", WM8900_REG_BYPASS1, 7, 1, 0),
458 SOC_DAPM_SINGLE("Right Input Mixer Switch", WM8900_REG_BYPASS2, 3, 1, 0),
459 SOC_DAPM_SINGLE("DACL Switch", WM8900_REG_LOUTMIXCTL1, 8, 1, 0),
460 };
461
462 static const struct snd_kcontrol_new wm8900_routmix_controls[] = {
463 SOC_DAPM_SINGLE("RINPUT3 Bypass Switch", WM8900_REG_ROUTMIXCTL1, 7, 1, 0),
464 SOC_DAPM_SINGLE("AUX Bypass Switch", WM8900_REG_AUXOUT_CTL, 3, 1, 0),
465 SOC_DAPM_SINGLE("Left Input Mixer Switch", WM8900_REG_BYPASS1, 3, 1, 0),
466 SOC_DAPM_SINGLE("Right Input Mixer Switch", WM8900_REG_BYPASS2, 7, 1, 0),
467 SOC_DAPM_SINGLE("DACR Switch", WM8900_REG_ROUTMIXCTL1, 8, 1, 0),
468 };
469
470 static const struct snd_kcontrol_new wm8900_linmix_controls[] = {
471 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8900_REG_INBOOSTMIX1, 2, 1, 1),
472 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8900_REG_INBOOSTMIX1, 6, 1, 1),
473 SOC_DAPM_SINGLE("AUX Switch", WM8900_REG_AUXBOOST, 6, 1, 1),
474 SOC_DAPM_SINGLE("Input PGA Switch", WM8900_REG_ADCPATH, 6, 1, 0),
475 };
476
477 static const struct snd_kcontrol_new wm8900_rinmix_controls[] = {
478 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INBOOSTMIX2, 2, 1, 1),
479 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INBOOSTMIX2, 6, 1, 1),
480 SOC_DAPM_SINGLE("AUX Switch", WM8900_REG_AUXBOOST, 2, 1, 1),
481 SOC_DAPM_SINGLE("Input PGA Switch", WM8900_REG_ADCPATH, 2, 1, 0),
482 };
483
484 static const struct snd_kcontrol_new wm8900_linpga_controls[] = {
485 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8900_REG_INCTL, 6, 1, 0),
486 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8900_REG_INCTL, 5, 1, 0),
487 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8900_REG_INCTL, 4, 1, 0),
488 };
489
490 static const struct snd_kcontrol_new wm8900_rinpga_controls[] = {
491 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8900_REG_INCTL, 2, 1, 0),
492 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8900_REG_INCTL, 1, 1, 0),
493 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8900_REG_INCTL, 0, 1, 0),
494 };
495
496 static const char *wm8900_lp_mux[] = { "Disabled", "Enabled" };
497
498 static const struct soc_enum wm8900_lineout2_lp_mux =
499 SOC_ENUM_SINGLE(WM8900_REG_LOUTMIXCTL1, 1, 2, wm8900_lp_mux);
500
501 static const struct snd_kcontrol_new wm8900_lineout2_lp =
502 SOC_DAPM_ENUM("Route", wm8900_lineout2_lp_mux);
503
504 static const struct snd_soc_dapm_widget wm8900_dapm_widgets[] = {
505
506 /* Externally visible pins */
507 SND_SOC_DAPM_OUTPUT("LINEOUT1L"),
508 SND_SOC_DAPM_OUTPUT("LINEOUT1R"),
509 SND_SOC_DAPM_OUTPUT("LINEOUT2L"),
510 SND_SOC_DAPM_OUTPUT("LINEOUT2R"),
511 SND_SOC_DAPM_OUTPUT("HP_L"),
512 SND_SOC_DAPM_OUTPUT("HP_R"),
513
514 SND_SOC_DAPM_INPUT("RINPUT1"),
515 SND_SOC_DAPM_INPUT("LINPUT1"),
516 SND_SOC_DAPM_INPUT("RINPUT2"),
517 SND_SOC_DAPM_INPUT("LINPUT2"),
518 SND_SOC_DAPM_INPUT("RINPUT3"),
519 SND_SOC_DAPM_INPUT("LINPUT3"),
520 SND_SOC_DAPM_INPUT("AUX"),
521
522 SND_SOC_DAPM_VMID("VMID"),
523
524 /* Input */
525 SND_SOC_DAPM_MIXER("Left Input PGA", WM8900_REG_POWER2, 3, 0,
526 wm8900_linpga_controls,
527 ARRAY_SIZE(wm8900_linpga_controls)),
528 SND_SOC_DAPM_MIXER("Right Input PGA", WM8900_REG_POWER2, 2, 0,
529 wm8900_rinpga_controls,
530 ARRAY_SIZE(wm8900_rinpga_controls)),
531
532 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8900_REG_POWER2, 5, 0,
533 wm8900_linmix_controls,
534 ARRAY_SIZE(wm8900_linmix_controls)),
535 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8900_REG_POWER2, 4, 0,
536 wm8900_rinmix_controls,
537 ARRAY_SIZE(wm8900_rinmix_controls)),
538
539 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8900_REG_POWER1, 4, 0, NULL, 0),
540
541 SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8900_REG_POWER2, 1, 0),
542 SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8900_REG_POWER2, 0, 0),
543
544 /* Output */
545 SND_SOC_DAPM_DAC("DACL", "Left HiFi Playback", WM8900_REG_POWER3, 1, 0),
546 SND_SOC_DAPM_DAC("DACR", "Right HiFi Playback", WM8900_REG_POWER3, 0, 0),
547
548 SND_SOC_DAPM_PGA_E("Headphone Amplifier", WM8900_REG_POWER3, 7, 0, NULL, 0,
549 wm8900_hp_event,
550 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
551 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
552
553 SND_SOC_DAPM_PGA("LINEOUT1L PGA", WM8900_REG_POWER2, 8, 0, NULL, 0),
554 SND_SOC_DAPM_PGA("LINEOUT1R PGA", WM8900_REG_POWER2, 7, 0, NULL, 0),
555
556 SND_SOC_DAPM_MUX("LINEOUT2 LP", SND_SOC_NOPM, 0, 0, &wm8900_lineout2_lp),
557 SND_SOC_DAPM_PGA("LINEOUT2L PGA", WM8900_REG_POWER3, 6, 0, NULL, 0),
558 SND_SOC_DAPM_PGA("LINEOUT2R PGA", WM8900_REG_POWER3, 5, 0, NULL, 0),
559
560 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8900_REG_POWER3, 3, 0,
561 wm8900_loutmix_controls,
562 ARRAY_SIZE(wm8900_loutmix_controls)),
563 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8900_REG_POWER3, 2, 0,
564 wm8900_routmix_controls,
565 ARRAY_SIZE(wm8900_routmix_controls)),
566 };
567
568 /* Target, Path, Source */
569 static const struct snd_soc_dapm_route wm8900_dapm_routes[] = {
570 /* Inputs */
571 {"Left Input PGA", "LINPUT1 Switch", "LINPUT1"},
572 {"Left Input PGA", "LINPUT2 Switch", "LINPUT2"},
573 {"Left Input PGA", "LINPUT3 Switch", "LINPUT3"},
574
575 {"Right Input PGA", "RINPUT1 Switch", "RINPUT1"},
576 {"Right Input PGA", "RINPUT2 Switch", "RINPUT2"},
577 {"Right Input PGA", "RINPUT3 Switch", "RINPUT3"},
578
579 {"Left Input Mixer", "LINPUT2 Switch", "LINPUT2"},
580 {"Left Input Mixer", "LINPUT3 Switch", "LINPUT3"},
581 {"Left Input Mixer", "AUX Switch", "AUX"},
582 {"Left Input Mixer", "Input PGA Switch", "Left Input PGA"},
583
584 {"Right Input Mixer", "RINPUT2 Switch", "RINPUT2"},
585 {"Right Input Mixer", "RINPUT3 Switch", "RINPUT3"},
586 {"Right Input Mixer", "AUX Switch", "AUX"},
587 {"Right Input Mixer", "Input PGA Switch", "Right Input PGA"},
588
589 {"ADCL", NULL, "Left Input Mixer"},
590 {"ADCR", NULL, "Right Input Mixer"},
591
592 /* Outputs */
593 {"LINEOUT1L", NULL, "LINEOUT1L PGA"},
594 {"LINEOUT1L PGA", NULL, "Left Output Mixer"},
595 {"LINEOUT1R", NULL, "LINEOUT1R PGA"},
596 {"LINEOUT1R PGA", NULL, "Right Output Mixer"},
597
598 {"LINEOUT2L PGA", NULL, "Left Output Mixer"},
599 {"LINEOUT2 LP", "Disabled", "LINEOUT2L PGA"},
600 {"LINEOUT2 LP", "Enabled", "Left Output Mixer"},
601 {"LINEOUT2L", NULL, "LINEOUT2 LP"},
602
603 {"LINEOUT2R PGA", NULL, "Right Output Mixer"},
604 {"LINEOUT2 LP", "Disabled", "LINEOUT2R PGA"},
605 {"LINEOUT2 LP", "Enabled", "Right Output Mixer"},
606 {"LINEOUT2R", NULL, "LINEOUT2 LP"},
607
608 {"Left Output Mixer", "LINPUT3 Bypass Switch", "LINPUT3"},
609 {"Left Output Mixer", "AUX Bypass Switch", "AUX"},
610 {"Left Output Mixer", "Left Input Mixer Switch", "Left Input Mixer"},
611 {"Left Output Mixer", "Right Input Mixer Switch", "Right Input Mixer"},
612 {"Left Output Mixer", "DACL Switch", "DACL"},
613
614 {"Right Output Mixer", "RINPUT3 Bypass Switch", "RINPUT3"},
615 {"Right Output Mixer", "AUX Bypass Switch", "AUX"},
616 {"Right Output Mixer", "Left Input Mixer Switch", "Left Input Mixer"},
617 {"Right Output Mixer", "Right Input Mixer Switch", "Right Input Mixer"},
618 {"Right Output Mixer", "DACR Switch", "DACR"},
619
620 /* Note that the headphone output stage needs to be connected
621 * externally to LINEOUT2 via DC blocking capacitors. Other
622 * configurations are not supported.
623 *
624 * Note also that left and right headphone paths are treated as a
625 * mono path.
626 */
627 {"Headphone Amplifier", NULL, "LINEOUT2 LP"},
628 {"Headphone Amplifier", NULL, "LINEOUT2 LP"},
629 {"HP_L", NULL, "Headphone Amplifier"},
630 {"HP_R", NULL, "Headphone Amplifier"},
631 };
632
633 static int wm8900_hw_params(struct snd_pcm_substream *substream,
634 struct snd_pcm_hw_params *params,
635 struct snd_soc_dai *dai)
636 {
637 struct snd_soc_codec *codec = dai->codec;
638 u16 reg;
639
640 reg = snd_soc_read(codec, WM8900_REG_AUDIO1) & ~0x60;
641
642 switch (params_format(params)) {
643 case SNDRV_PCM_FORMAT_S16_LE:
644 break;
645 case SNDRV_PCM_FORMAT_S20_3LE:
646 reg |= 0x20;
647 break;
648 case SNDRV_PCM_FORMAT_S24_LE:
649 reg |= 0x40;
650 break;
651 case SNDRV_PCM_FORMAT_S32_LE:
652 reg |= 0x60;
653 break;
654 default:
655 return -EINVAL;
656 }
657
658 snd_soc_write(codec, WM8900_REG_AUDIO1, reg);
659
660 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
661 reg = snd_soc_read(codec, WM8900_REG_DACCTRL);
662
663 if (params_rate(params) <= 24000)
664 reg |= WM8900_REG_DACCTRL_DAC_SB_FILT;
665 else
666 reg &= ~WM8900_REG_DACCTRL_DAC_SB_FILT;
667
668 snd_soc_write(codec, WM8900_REG_DACCTRL, reg);
669 }
670
671 return 0;
672 }
673
674 /* FLL divisors */
675 struct _fll_div {
676 u16 fll_ratio;
677 u16 fllclk_div;
678 u16 fll_slow_lock_ref;
679 u16 n;
680 u16 k;
681 };
682
683 /* The size in bits of the FLL divide multiplied by 10
684 * to allow rounding later */
685 #define FIXED_FLL_SIZE ((1 << 16) * 10)
686
687 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
688 unsigned int Fout)
689 {
690 u64 Kpart;
691 unsigned int K, Ndiv, Nmod, target;
692 unsigned int div;
693
694 BUG_ON(!Fout);
695
696 /* The FLL must run at 90-100MHz which is then scaled down to
697 * the output value by FLLCLK_DIV. */
698 target = Fout;
699 div = 1;
700 while (target < 90000000) {
701 div *= 2;
702 target *= 2;
703 }
704
705 if (target > 100000000)
706 printk(KERN_WARNING "wm8900: FLL rate %u out of range, Fref=%u"
707 " Fout=%u\n", target, Fref, Fout);
708 if (div > 32) {
709 printk(KERN_ERR "wm8900: Invalid FLL division rate %u, "
710 "Fref=%u, Fout=%u, target=%u\n",
711 div, Fref, Fout, target);
712 return -EINVAL;
713 }
714
715 fll_div->fllclk_div = div >> 2;
716
717 if (Fref < 48000)
718 fll_div->fll_slow_lock_ref = 1;
719 else
720 fll_div->fll_slow_lock_ref = 0;
721
722 Ndiv = target / Fref;
723
724 if (Fref < 1000000)
725 fll_div->fll_ratio = 8;
726 else
727 fll_div->fll_ratio = 1;
728
729 fll_div->n = Ndiv / fll_div->fll_ratio;
730 Nmod = (target / fll_div->fll_ratio) % Fref;
731
732 /* Calculate fractional part - scale up so we can round. */
733 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
734
735 do_div(Kpart, Fref);
736
737 K = Kpart & 0xFFFFFFFF;
738
739 if ((K % 10) >= 5)
740 K += 5;
741
742 /* Move down to proper range now rounding is done */
743 fll_div->k = K / 10;
744
745 BUG_ON(target != Fout * (fll_div->fllclk_div << 2));
746 BUG_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n);
747
748 return 0;
749 }
750
751 static int wm8900_set_fll(struct snd_soc_codec *codec,
752 int fll_id, unsigned int freq_in, unsigned int freq_out)
753 {
754 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
755 struct _fll_div fll_div;
756
757 if (wm8900->fll_in == freq_in && wm8900->fll_out == freq_out)
758 return 0;
759
760 /* The digital side should be disabled during any change. */
761 snd_soc_update_bits(codec, WM8900_REG_POWER1,
762 WM8900_REG_POWER1_FLL_ENA, 0);
763
764 /* Disable the FLL? */
765 if (!freq_in || !freq_out) {
766 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
767 WM8900_REG_CLOCKING1_MCLK_SRC, 0);
768 snd_soc_update_bits(codec, WM8900_REG_FLLCTL1,
769 WM8900_REG_FLLCTL1_OSC_ENA, 0);
770 wm8900->fll_in = freq_in;
771 wm8900->fll_out = freq_out;
772
773 return 0;
774 }
775
776 if (fll_factors(&fll_div, freq_in, freq_out) != 0)
777 goto reenable;
778
779 wm8900->fll_in = freq_in;
780 wm8900->fll_out = freq_out;
781
782 /* The osclilator *MUST* be enabled before we enable the
783 * digital circuit. */
784 snd_soc_write(codec, WM8900_REG_FLLCTL1,
785 fll_div.fll_ratio | WM8900_REG_FLLCTL1_OSC_ENA);
786
787 snd_soc_write(codec, WM8900_REG_FLLCTL4, fll_div.n >> 5);
788 snd_soc_write(codec, WM8900_REG_FLLCTL5,
789 (fll_div.fllclk_div << 6) | (fll_div.n & 0x1f));
790
791 if (fll_div.k) {
792 snd_soc_write(codec, WM8900_REG_FLLCTL2,
793 (fll_div.k >> 8) | 0x100);
794 snd_soc_write(codec, WM8900_REG_FLLCTL3, fll_div.k & 0xff);
795 } else
796 snd_soc_write(codec, WM8900_REG_FLLCTL2, 0);
797
798 if (fll_div.fll_slow_lock_ref)
799 snd_soc_write(codec, WM8900_REG_FLLCTL6,
800 WM8900_REG_FLLCTL6_FLL_SLOW_LOCK_REF);
801 else
802 snd_soc_write(codec, WM8900_REG_FLLCTL6, 0);
803
804 snd_soc_update_bits(codec, WM8900_REG_POWER1,
805 WM8900_REG_POWER1_FLL_ENA,
806 WM8900_REG_POWER1_FLL_ENA);
807
808 reenable:
809 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
810 WM8900_REG_CLOCKING1_MCLK_SRC,
811 WM8900_REG_CLOCKING1_MCLK_SRC);
812 return 0;
813 }
814
815 static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
816 int source, unsigned int freq_in, unsigned int freq_out)
817 {
818 return wm8900_set_fll(codec_dai->codec, pll_id, freq_in, freq_out);
819 }
820
821 static int wm8900_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
822 int div_id, int div)
823 {
824 struct snd_soc_codec *codec = codec_dai->codec;
825
826 switch (div_id) {
827 case WM8900_BCLK_DIV:
828 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
829 WM8900_REG_CLOCKING1_BCLK_MASK, div);
830 break;
831 case WM8900_OPCLK_DIV:
832 snd_soc_update_bits(codec, WM8900_REG_CLOCKING1,
833 WM8900_REG_CLOCKING1_OPCLK_MASK, div);
834 break;
835 case WM8900_DAC_LRCLK:
836 snd_soc_update_bits(codec, WM8900_REG_AUDIO4,
837 WM8900_LRC_MASK, div);
838 break;
839 case WM8900_ADC_LRCLK:
840 snd_soc_update_bits(codec, WM8900_REG_AUDIO3,
841 WM8900_LRC_MASK, div);
842 break;
843 case WM8900_DAC_CLKDIV:
844 snd_soc_update_bits(codec, WM8900_REG_CLOCKING2,
845 WM8900_REG_CLOCKING2_DAC_CLKDIV, div);
846 break;
847 case WM8900_ADC_CLKDIV:
848 snd_soc_update_bits(codec, WM8900_REG_CLOCKING2,
849 WM8900_REG_CLOCKING2_ADC_CLKDIV, div);
850 break;
851 case WM8900_LRCLK_MODE:
852 snd_soc_update_bits(codec, WM8900_REG_DACCTRL,
853 WM8900_REG_DACCTRL_AIF_LRCLKRATE, div);
854 break;
855 default:
856 return -EINVAL;
857 }
858
859 return 0;
860 }
861
862
863 static int wm8900_set_dai_fmt(struct snd_soc_dai *codec_dai,
864 unsigned int fmt)
865 {
866 struct snd_soc_codec *codec = codec_dai->codec;
867 unsigned int clocking1, aif1, aif3, aif4;
868
869 clocking1 = snd_soc_read(codec, WM8900_REG_CLOCKING1);
870 aif1 = snd_soc_read(codec, WM8900_REG_AUDIO1);
871 aif3 = snd_soc_read(codec, WM8900_REG_AUDIO3);
872 aif4 = snd_soc_read(codec, WM8900_REG_AUDIO4);
873
874 /* set master/slave audio interface */
875 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
876 case SND_SOC_DAIFMT_CBS_CFS:
877 clocking1 &= ~WM8900_REG_CLOCKING1_BCLK_DIR;
878 aif3 &= ~WM8900_REG_AUDIO3_ADCLRC_DIR;
879 aif4 &= ~WM8900_REG_AUDIO4_DACLRC_DIR;
880 break;
881 case SND_SOC_DAIFMT_CBS_CFM:
882 clocking1 &= ~WM8900_REG_CLOCKING1_BCLK_DIR;
883 aif3 |= WM8900_REG_AUDIO3_ADCLRC_DIR;
884 aif4 |= WM8900_REG_AUDIO4_DACLRC_DIR;
885 break;
886 case SND_SOC_DAIFMT_CBM_CFM:
887 clocking1 |= WM8900_REG_CLOCKING1_BCLK_DIR;
888 aif3 |= WM8900_REG_AUDIO3_ADCLRC_DIR;
889 aif4 |= WM8900_REG_AUDIO4_DACLRC_DIR;
890 break;
891 case SND_SOC_DAIFMT_CBM_CFS:
892 clocking1 |= WM8900_REG_CLOCKING1_BCLK_DIR;
893 aif3 &= ~WM8900_REG_AUDIO3_ADCLRC_DIR;
894 aif4 &= ~WM8900_REG_AUDIO4_DACLRC_DIR;
895 break;
896 default:
897 return -EINVAL;
898 }
899
900 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
901 case SND_SOC_DAIFMT_DSP_A:
902 aif1 |= WM8900_REG_AUDIO1_AIF_FMT_MASK;
903 aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV;
904 break;
905 case SND_SOC_DAIFMT_DSP_B:
906 aif1 |= WM8900_REG_AUDIO1_AIF_FMT_MASK;
907 aif1 |= WM8900_REG_AUDIO1_LRCLK_INV;
908 break;
909 case SND_SOC_DAIFMT_I2S:
910 aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK;
911 aif1 |= 0x10;
912 break;
913 case SND_SOC_DAIFMT_RIGHT_J:
914 aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK;
915 break;
916 case SND_SOC_DAIFMT_LEFT_J:
917 aif1 &= ~WM8900_REG_AUDIO1_AIF_FMT_MASK;
918 aif1 |= 0x8;
919 break;
920 default:
921 return -EINVAL;
922 }
923
924 /* Clock inversion */
925 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
926 case SND_SOC_DAIFMT_DSP_A:
927 case SND_SOC_DAIFMT_DSP_B:
928 /* frame inversion not valid for DSP modes */
929 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
930 case SND_SOC_DAIFMT_NB_NF:
931 aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV;
932 break;
933 case SND_SOC_DAIFMT_IB_NF:
934 aif1 |= WM8900_REG_AUDIO1_BCLK_INV;
935 break;
936 default:
937 return -EINVAL;
938 }
939 break;
940 case SND_SOC_DAIFMT_I2S:
941 case SND_SOC_DAIFMT_RIGHT_J:
942 case SND_SOC_DAIFMT_LEFT_J:
943 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
944 case SND_SOC_DAIFMT_NB_NF:
945 aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV;
946 aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV;
947 break;
948 case SND_SOC_DAIFMT_IB_IF:
949 aif1 |= WM8900_REG_AUDIO1_BCLK_INV;
950 aif1 |= WM8900_REG_AUDIO1_LRCLK_INV;
951 break;
952 case SND_SOC_DAIFMT_IB_NF:
953 aif1 |= WM8900_REG_AUDIO1_BCLK_INV;
954 aif1 &= ~WM8900_REG_AUDIO1_LRCLK_INV;
955 break;
956 case SND_SOC_DAIFMT_NB_IF:
957 aif1 &= ~WM8900_REG_AUDIO1_BCLK_INV;
958 aif1 |= WM8900_REG_AUDIO1_LRCLK_INV;
959 break;
960 default:
961 return -EINVAL;
962 }
963 break;
964 default:
965 return -EINVAL;
966 }
967
968 snd_soc_write(codec, WM8900_REG_CLOCKING1, clocking1);
969 snd_soc_write(codec, WM8900_REG_AUDIO1, aif1);
970 snd_soc_write(codec, WM8900_REG_AUDIO3, aif3);
971 snd_soc_write(codec, WM8900_REG_AUDIO4, aif4);
972
973 return 0;
974 }
975
976 static int wm8900_digital_mute(struct snd_soc_dai *codec_dai, int mute)
977 {
978 struct snd_soc_codec *codec = codec_dai->codec;
979 u16 reg;
980
981 reg = snd_soc_read(codec, WM8900_REG_DACCTRL);
982
983 if (mute)
984 reg |= WM8900_REG_DACCTRL_MUTE;
985 else
986 reg &= ~WM8900_REG_DACCTRL_MUTE;
987
988 snd_soc_write(codec, WM8900_REG_DACCTRL, reg);
989
990 return 0;
991 }
992
993 #define WM8900_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
994 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
995 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
996
997 #define WM8900_PCM_FORMATS \
998 (SNDRV_PCM_FORMAT_S16_LE | SNDRV_PCM_FORMAT_S20_3LE | \
999 SNDRV_PCM_FORMAT_S24_LE)
1000
1001 static const struct snd_soc_dai_ops wm8900_dai_ops = {
1002 .hw_params = wm8900_hw_params,
1003 .set_clkdiv = wm8900_set_dai_clkdiv,
1004 .set_pll = wm8900_set_dai_pll,
1005 .set_fmt = wm8900_set_dai_fmt,
1006 .digital_mute = wm8900_digital_mute,
1007 };
1008
1009 static struct snd_soc_dai_driver wm8900_dai = {
1010 .name = "wm8900-hifi",
1011 .playback = {
1012 .stream_name = "HiFi Playback",
1013 .channels_min = 1,
1014 .channels_max = 2,
1015 .rates = WM8900_RATES,
1016 .formats = WM8900_PCM_FORMATS,
1017 },
1018 .capture = {
1019 .stream_name = "HiFi Capture",
1020 .channels_min = 1,
1021 .channels_max = 2,
1022 .rates = WM8900_RATES,
1023 .formats = WM8900_PCM_FORMATS,
1024 },
1025 .ops = &wm8900_dai_ops,
1026 };
1027
1028 static int wm8900_set_bias_level(struct snd_soc_codec *codec,
1029 enum snd_soc_bias_level level)
1030 {
1031 u16 reg;
1032
1033 switch (level) {
1034 case SND_SOC_BIAS_ON:
1035 /* Enable thermal shutdown */
1036 snd_soc_update_bits(codec, WM8900_REG_GPIO,
1037 WM8900_REG_GPIO_TEMP_ENA,
1038 WM8900_REG_GPIO_TEMP_ENA);
1039 snd_soc_update_bits(codec, WM8900_REG_ADDCTL,
1040 WM8900_REG_ADDCTL_TEMP_SD,
1041 WM8900_REG_ADDCTL_TEMP_SD);
1042 break;
1043
1044 case SND_SOC_BIAS_PREPARE:
1045 break;
1046
1047 case SND_SOC_BIAS_STANDBY:
1048 /* Charge capacitors if initial power up */
1049 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1050 /* STARTUP_BIAS_ENA on */
1051 snd_soc_write(codec, WM8900_REG_POWER1,
1052 WM8900_REG_POWER1_STARTUP_BIAS_ENA);
1053
1054 /* Startup bias mode */
1055 snd_soc_write(codec, WM8900_REG_ADDCTL,
1056 WM8900_REG_ADDCTL_BIAS_SRC |
1057 WM8900_REG_ADDCTL_VMID_SOFTST);
1058
1059 /* VMID 2x50k */
1060 snd_soc_write(codec, WM8900_REG_POWER1,
1061 WM8900_REG_POWER1_STARTUP_BIAS_ENA | 0x1);
1062
1063 /* Allow capacitors to charge */
1064 schedule_timeout_interruptible(msecs_to_jiffies(400));
1065
1066 /* Enable bias */
1067 snd_soc_write(codec, WM8900_REG_POWER1,
1068 WM8900_REG_POWER1_STARTUP_BIAS_ENA |
1069 WM8900_REG_POWER1_BIAS_ENA | 0x1);
1070
1071 snd_soc_write(codec, WM8900_REG_ADDCTL, 0);
1072
1073 snd_soc_write(codec, WM8900_REG_POWER1,
1074 WM8900_REG_POWER1_BIAS_ENA | 0x1);
1075 }
1076
1077 reg = snd_soc_read(codec, WM8900_REG_POWER1);
1078 snd_soc_write(codec, WM8900_REG_POWER1,
1079 (reg & WM8900_REG_POWER1_FLL_ENA) |
1080 WM8900_REG_POWER1_BIAS_ENA | 0x1);
1081 snd_soc_write(codec, WM8900_REG_POWER2,
1082 WM8900_REG_POWER2_SYSCLK_ENA);
1083 snd_soc_write(codec, WM8900_REG_POWER3, 0);
1084 break;
1085
1086 case SND_SOC_BIAS_OFF:
1087 /* Startup bias enable */
1088 reg = snd_soc_read(codec, WM8900_REG_POWER1);
1089 snd_soc_write(codec, WM8900_REG_POWER1,
1090 reg & WM8900_REG_POWER1_STARTUP_BIAS_ENA);
1091 snd_soc_write(codec, WM8900_REG_ADDCTL,
1092 WM8900_REG_ADDCTL_BIAS_SRC |
1093 WM8900_REG_ADDCTL_VMID_SOFTST);
1094
1095 /* Discharge caps */
1096 snd_soc_write(codec, WM8900_REG_POWER1,
1097 WM8900_REG_POWER1_STARTUP_BIAS_ENA);
1098 schedule_timeout_interruptible(msecs_to_jiffies(500));
1099
1100 /* Remove clamp */
1101 snd_soc_write(codec, WM8900_REG_HPCTL1, 0);
1102
1103 /* Power down */
1104 snd_soc_write(codec, WM8900_REG_ADDCTL, 0);
1105 snd_soc_write(codec, WM8900_REG_POWER1, 0);
1106 snd_soc_write(codec, WM8900_REG_POWER2, 0);
1107 snd_soc_write(codec, WM8900_REG_POWER3, 0);
1108
1109 /* Need to let things settle before stopping the clock
1110 * to ensure that restart works, see "Stopping the
1111 * master clock" in the datasheet. */
1112 schedule_timeout_interruptible(msecs_to_jiffies(1));
1113 snd_soc_write(codec, WM8900_REG_POWER2,
1114 WM8900_REG_POWER2_SYSCLK_ENA);
1115 break;
1116 }
1117 codec->dapm.bias_level = level;
1118 return 0;
1119 }
1120
1121 static int wm8900_suspend(struct snd_soc_codec *codec)
1122 {
1123 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
1124 int fll_out = wm8900->fll_out;
1125 int fll_in = wm8900->fll_in;
1126 int ret;
1127
1128 /* Stop the FLL in an orderly fashion */
1129 ret = wm8900_set_fll(codec, 0, 0, 0);
1130 if (ret != 0) {
1131 dev_err(codec->dev, "Failed to stop FLL\n");
1132 return ret;
1133 }
1134
1135 wm8900->fll_out = fll_out;
1136 wm8900->fll_in = fll_in;
1137
1138 wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF);
1139
1140 return 0;
1141 }
1142
1143 static int wm8900_resume(struct snd_soc_codec *codec)
1144 {
1145 struct wm8900_priv *wm8900 = snd_soc_codec_get_drvdata(codec);
1146 int ret;
1147
1148 wm8900_reset(codec);
1149
1150 ret = regcache_sync(wm8900->regmap);
1151 if (ret != 0) {
1152 dev_err(codec->dev, "Failed to restore cache: %d\n", ret);
1153 return ret;
1154 }
1155
1156 wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1157
1158 /* Restart the FLL? */
1159 if (wm8900->fll_out) {
1160 int fll_out = wm8900->fll_out;
1161 int fll_in = wm8900->fll_in;
1162
1163 wm8900->fll_in = 0;
1164 wm8900->fll_out = 0;
1165
1166 ret = wm8900_set_fll(codec, 0, fll_in, fll_out);
1167 if (ret != 0) {
1168 dev_err(codec->dev, "Failed to restart FLL\n");
1169 return ret;
1170 }
1171 }
1172
1173 return 0;
1174 }
1175
1176 static int wm8900_probe(struct snd_soc_codec *codec)
1177 {
1178 int ret = 0, reg;
1179
1180 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
1181 if (ret != 0) {
1182 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1183 return ret;
1184 }
1185
1186 reg = snd_soc_read(codec, WM8900_REG_ID);
1187 if (reg != 0x8900) {
1188 dev_err(codec->dev, "Device is not a WM8900 - ID %x\n", reg);
1189 return -ENODEV;
1190 }
1191
1192 wm8900_reset(codec);
1193
1194 /* Turn the chip on */
1195 wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1196
1197 /* Latch the volume update bits */
1198 snd_soc_update_bits(codec, WM8900_REG_LINVOL, 0x100, 0x100);
1199 snd_soc_update_bits(codec, WM8900_REG_RINVOL, 0x100, 0x100);
1200 snd_soc_update_bits(codec, WM8900_REG_LOUT1CTL, 0x100, 0x100);
1201 snd_soc_update_bits(codec, WM8900_REG_ROUT1CTL, 0x100, 0x100);
1202 snd_soc_update_bits(codec, WM8900_REG_LOUT2CTL, 0x100, 0x100);
1203 snd_soc_update_bits(codec, WM8900_REG_ROUT2CTL, 0x100, 0x100);
1204 snd_soc_update_bits(codec, WM8900_REG_LDAC_DV, 0x100, 0x100);
1205 snd_soc_update_bits(codec, WM8900_REG_RDAC_DV, 0x100, 0x100);
1206 snd_soc_update_bits(codec, WM8900_REG_LADC_DV, 0x100, 0x100);
1207 snd_soc_update_bits(codec, WM8900_REG_RADC_DV, 0x100, 0x100);
1208
1209 /* Set the DAC and mixer output bias */
1210 snd_soc_write(codec, WM8900_REG_OUTBIASCTL, 0x81);
1211
1212 return 0;
1213 }
1214
1215 /* power down chip */
1216 static int wm8900_remove(struct snd_soc_codec *codec)
1217 {
1218 wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF);
1219 return 0;
1220 }
1221
1222 static struct snd_soc_codec_driver soc_codec_dev_wm8900 = {
1223 .probe = wm8900_probe,
1224 .remove = wm8900_remove,
1225 .suspend = wm8900_suspend,
1226 .resume = wm8900_resume,
1227 .set_bias_level = wm8900_set_bias_level,
1228
1229 .controls = wm8900_snd_controls,
1230 .num_controls = ARRAY_SIZE(wm8900_snd_controls),
1231 .dapm_widgets = wm8900_dapm_widgets,
1232 .num_dapm_widgets = ARRAY_SIZE(wm8900_dapm_widgets),
1233 .dapm_routes = wm8900_dapm_routes,
1234 .num_dapm_routes = ARRAY_SIZE(wm8900_dapm_routes),
1235 };
1236
1237 static const struct regmap_config wm8900_regmap = {
1238 .reg_bits = 8,
1239 .val_bits = 16,
1240 .max_register = WM8900_MAXREG,
1241
1242 .reg_defaults = wm8900_reg_defaults,
1243 .num_reg_defaults = ARRAY_SIZE(wm8900_reg_defaults),
1244 .cache_type = REGCACHE_RBTREE,
1245
1246 .volatile_reg = wm8900_volatile_register,
1247 };
1248
1249 #if defined(CONFIG_SPI_MASTER)
1250 static int wm8900_spi_probe(struct spi_device *spi)
1251 {
1252 struct wm8900_priv *wm8900;
1253 int ret;
1254
1255 wm8900 = devm_kzalloc(&spi->dev, sizeof(struct wm8900_priv),
1256 GFP_KERNEL);
1257 if (wm8900 == NULL)
1258 return -ENOMEM;
1259
1260 wm8900->regmap = devm_regmap_init_spi(spi, &wm8900_regmap);
1261 if (IS_ERR(wm8900->regmap))
1262 return PTR_ERR(wm8900->regmap);
1263
1264 spi_set_drvdata(spi, wm8900);
1265
1266 ret = snd_soc_register_codec(&spi->dev,
1267 &soc_codec_dev_wm8900, &wm8900_dai, 1);
1268
1269 return ret;
1270 }
1271
1272 static int wm8900_spi_remove(struct spi_device *spi)
1273 {
1274 snd_soc_unregister_codec(&spi->dev);
1275 return 0;
1276 }
1277
1278 static struct spi_driver wm8900_spi_driver = {
1279 .driver = {
1280 .name = "wm8900",
1281 .owner = THIS_MODULE,
1282 },
1283 .probe = wm8900_spi_probe,
1284 .remove = wm8900_spi_remove,
1285 };
1286 #endif /* CONFIG_SPI_MASTER */
1287
1288 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1289 static int wm8900_i2c_probe(struct i2c_client *i2c,
1290 const struct i2c_device_id *id)
1291 {
1292 struct wm8900_priv *wm8900;
1293 int ret;
1294
1295 wm8900 = devm_kzalloc(&i2c->dev, sizeof(struct wm8900_priv),
1296 GFP_KERNEL);
1297 if (wm8900 == NULL)
1298 return -ENOMEM;
1299
1300 wm8900->regmap = devm_regmap_init_i2c(i2c, &wm8900_regmap);
1301 if (IS_ERR(wm8900->regmap))
1302 return PTR_ERR(wm8900->regmap);
1303
1304 i2c_set_clientdata(i2c, wm8900);
1305
1306 ret = snd_soc_register_codec(&i2c->dev,
1307 &soc_codec_dev_wm8900, &wm8900_dai, 1);
1308
1309 return ret;
1310 }
1311
1312 static int wm8900_i2c_remove(struct i2c_client *client)
1313 {
1314 snd_soc_unregister_codec(&client->dev);
1315 return 0;
1316 }
1317
1318 static const struct i2c_device_id wm8900_i2c_id[] = {
1319 { "wm8900", 0 },
1320 { }
1321 };
1322 MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id);
1323
1324 static struct i2c_driver wm8900_i2c_driver = {
1325 .driver = {
1326 .name = "wm8900",
1327 .owner = THIS_MODULE,
1328 },
1329 .probe = wm8900_i2c_probe,
1330 .remove = wm8900_i2c_remove,
1331 .id_table = wm8900_i2c_id,
1332 };
1333 #endif
1334
1335 static int __init wm8900_modinit(void)
1336 {
1337 int ret = 0;
1338 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1339 ret = i2c_add_driver(&wm8900_i2c_driver);
1340 if (ret != 0) {
1341 printk(KERN_ERR "Failed to register wm8900 I2C driver: %d\n",
1342 ret);
1343 }
1344 #endif
1345 #if defined(CONFIG_SPI_MASTER)
1346 ret = spi_register_driver(&wm8900_spi_driver);
1347 if (ret != 0) {
1348 printk(KERN_ERR "Failed to register wm8900 SPI driver: %d\n",
1349 ret);
1350 }
1351 #endif
1352 return ret;
1353 }
1354 module_init(wm8900_modinit);
1355
1356 static void __exit wm8900_exit(void)
1357 {
1358 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1359 i2c_del_driver(&wm8900_i2c_driver);
1360 #endif
1361 #if defined(CONFIG_SPI_MASTER)
1362 spi_unregister_driver(&wm8900_spi_driver);
1363 #endif
1364 }
1365 module_exit(wm8900_exit);
1366
1367 MODULE_DESCRIPTION("ASoC WM8900 driver");
1368 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>");
1369 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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