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67b22517 AS |
1 | /* |
2 | * CS4271 ASoC codec driver | |
3 | * | |
4 | * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * This driver support CS4271 codec being master or slave, working | |
17 | * in control port mode, connected either via SPI or I2C. | |
18 | * The data format accepted is I2S or left-justified. | |
19 | * DAPM support not implemented. | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/delay.h> | |
67b22517 AS |
25 | #include <linux/gpio.h> |
26 | #include <linux/i2c.h> | |
27 | #include <linux/spi/spi.h> | |
a7ea1b72 | 28 | #include <linux/of.h> |
a31ebc34 DM |
29 | #include <linux/of_device.h> |
30 | #include <linux/of_gpio.h> | |
31 | #include <sound/pcm.h> | |
32 | #include <sound/soc.h> | |
33 | #include <sound/tlv.h> | |
67b22517 AS |
34 | #include <sound/cs4271.h> |
35 | ||
36 | #define CS4271_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ | |
37 | SNDRV_PCM_FMTBIT_S24_LE | \ | |
38 | SNDRV_PCM_FMTBIT_S32_LE) | |
383f8465 | 39 | #define CS4271_PCM_RATES SNDRV_PCM_RATE_8000_192000 |
67b22517 AS |
40 | |
41 | /* | |
42 | * CS4271 registers | |
67b22517 | 43 | */ |
1b1861ea DM |
44 | #define CS4271_MODE1 0x01 /* Mode Control 1 */ |
45 | #define CS4271_DACCTL 0x02 /* DAC Control */ | |
46 | #define CS4271_DACVOL 0x03 /* DAC Volume & Mixing Control */ | |
47 | #define CS4271_VOLA 0x04 /* DAC Channel A Volume Control */ | |
48 | #define CS4271_VOLB 0x05 /* DAC Channel B Volume Control */ | |
49 | #define CS4271_ADCCTL 0x06 /* ADC Control */ | |
50 | #define CS4271_MODE2 0x07 /* Mode Control 2 */ | |
51 | #define CS4271_CHIPID 0x08 /* Chip ID */ | |
67b22517 AS |
52 | |
53 | #define CS4271_FIRSTREG CS4271_MODE1 | |
54 | #define CS4271_LASTREG CS4271_MODE2 | |
55 | #define CS4271_NR_REGS ((CS4271_LASTREG & 0xFF) + 1) | |
56 | ||
57 | /* Bit masks for the CS4271 registers */ | |
58 | #define CS4271_MODE1_MODE_MASK 0xC0 | |
59 | #define CS4271_MODE1_MODE_1X 0x00 | |
60 | #define CS4271_MODE1_MODE_2X 0x80 | |
61 | #define CS4271_MODE1_MODE_4X 0xC0 | |
62 | ||
63 | #define CS4271_MODE1_DIV_MASK 0x30 | |
64 | #define CS4271_MODE1_DIV_1 0x00 | |
65 | #define CS4271_MODE1_DIV_15 0x10 | |
66 | #define CS4271_MODE1_DIV_2 0x20 | |
67 | #define CS4271_MODE1_DIV_3 0x30 | |
68 | ||
69 | #define CS4271_MODE1_MASTER 0x08 | |
70 | ||
71 | #define CS4271_MODE1_DAC_DIF_MASK 0x07 | |
72 | #define CS4271_MODE1_DAC_DIF_LJ 0x00 | |
73 | #define CS4271_MODE1_DAC_DIF_I2S 0x01 | |
74 | #define CS4271_MODE1_DAC_DIF_RJ16 0x02 | |
75 | #define CS4271_MODE1_DAC_DIF_RJ24 0x03 | |
76 | #define CS4271_MODE1_DAC_DIF_RJ20 0x04 | |
77 | #define CS4271_MODE1_DAC_DIF_RJ18 0x05 | |
78 | ||
79 | #define CS4271_DACCTL_AMUTE 0x80 | |
80 | #define CS4271_DACCTL_IF_SLOW 0x40 | |
81 | ||
82 | #define CS4271_DACCTL_DEM_MASK 0x30 | |
83 | #define CS4271_DACCTL_DEM_DIS 0x00 | |
84 | #define CS4271_DACCTL_DEM_441 0x10 | |
85 | #define CS4271_DACCTL_DEM_48 0x20 | |
86 | #define CS4271_DACCTL_DEM_32 0x30 | |
87 | ||
88 | #define CS4271_DACCTL_SVRU 0x08 | |
89 | #define CS4271_DACCTL_SRD 0x04 | |
90 | #define CS4271_DACCTL_INVA 0x02 | |
91 | #define CS4271_DACCTL_INVB 0x01 | |
92 | ||
93 | #define CS4271_DACVOL_BEQUA 0x40 | |
94 | #define CS4271_DACVOL_SOFT 0x20 | |
95 | #define CS4271_DACVOL_ZEROC 0x10 | |
96 | ||
97 | #define CS4271_DACVOL_ATAPI_MASK 0x0F | |
98 | #define CS4271_DACVOL_ATAPI_M_M 0x00 | |
99 | #define CS4271_DACVOL_ATAPI_M_BR 0x01 | |
100 | #define CS4271_DACVOL_ATAPI_M_BL 0x02 | |
101 | #define CS4271_DACVOL_ATAPI_M_BLR2 0x03 | |
102 | #define CS4271_DACVOL_ATAPI_AR_M 0x04 | |
103 | #define CS4271_DACVOL_ATAPI_AR_BR 0x05 | |
104 | #define CS4271_DACVOL_ATAPI_AR_BL 0x06 | |
105 | #define CS4271_DACVOL_ATAPI_AR_BLR2 0x07 | |
106 | #define CS4271_DACVOL_ATAPI_AL_M 0x08 | |
107 | #define CS4271_DACVOL_ATAPI_AL_BR 0x09 | |
108 | #define CS4271_DACVOL_ATAPI_AL_BL 0x0A | |
109 | #define CS4271_DACVOL_ATAPI_AL_BLR2 0x0B | |
110 | #define CS4271_DACVOL_ATAPI_ALR2_M 0x0C | |
111 | #define CS4271_DACVOL_ATAPI_ALR2_BR 0x0D | |
112 | #define CS4271_DACVOL_ATAPI_ALR2_BL 0x0E | |
113 | #define CS4271_DACVOL_ATAPI_ALR2_BLR2 0x0F | |
114 | ||
115 | #define CS4271_VOLA_MUTE 0x80 | |
116 | #define CS4271_VOLA_VOL_MASK 0x7F | |
117 | #define CS4271_VOLB_MUTE 0x80 | |
118 | #define CS4271_VOLB_VOL_MASK 0x7F | |
119 | ||
120 | #define CS4271_ADCCTL_DITHER16 0x20 | |
121 | ||
122 | #define CS4271_ADCCTL_ADC_DIF_MASK 0x10 | |
123 | #define CS4271_ADCCTL_ADC_DIF_LJ 0x00 | |
124 | #define CS4271_ADCCTL_ADC_DIF_I2S 0x10 | |
125 | ||
126 | #define CS4271_ADCCTL_MUTEA 0x08 | |
127 | #define CS4271_ADCCTL_MUTEB 0x04 | |
128 | #define CS4271_ADCCTL_HPFDA 0x02 | |
129 | #define CS4271_ADCCTL_HPFDB 0x01 | |
130 | ||
131 | #define CS4271_MODE2_LOOP 0x10 | |
132 | #define CS4271_MODE2_MUTECAEQUB 0x08 | |
133 | #define CS4271_MODE2_FREEZE 0x04 | |
134 | #define CS4271_MODE2_CPEN 0x02 | |
135 | #define CS4271_MODE2_PDN 0x01 | |
136 | ||
137 | #define CS4271_CHIPID_PART_MASK 0xF0 | |
138 | #define CS4271_CHIPID_REV_MASK 0x0F | |
139 | ||
140 | /* | |
141 | * Default CS4271 power-up configuration | |
142 | * Array contains non-existing in hw register at address 0 | |
143 | * Array do not include Chip ID, as codec driver does not use | |
144 | * registers read operations at all | |
145 | */ | |
1b1861ea DM |
146 | static const struct reg_default cs4271_reg_defaults[] = { |
147 | { CS4271_MODE1, 0, }, | |
148 | { CS4271_DACCTL, CS4271_DACCTL_AMUTE, }, | |
149 | { CS4271_DACVOL, CS4271_DACVOL_SOFT | CS4271_DACVOL_ATAPI_AL_BR, }, | |
150 | { CS4271_VOLA, 0, }, | |
151 | { CS4271_VOLB, 0, }, | |
152 | { CS4271_ADCCTL, 0, }, | |
153 | { CS4271_MODE2, 0, }, | |
67b22517 AS |
154 | }; |
155 | ||
1b1861ea DM |
156 | static bool cs4271_volatile_reg(struct device *dev, unsigned int reg) |
157 | { | |
158 | return reg == CS4271_CHIPID; | |
159 | } | |
160 | ||
67b22517 | 161 | struct cs4271_private { |
67b22517 AS |
162 | unsigned int mclk; |
163 | bool master; | |
164 | bool deemph; | |
1b1861ea | 165 | struct regmap *regmap; |
67b22517 AS |
166 | /* Current sample rate for de-emphasis control */ |
167 | int rate; | |
168 | /* GPIO driving Reset pin, if any */ | |
169 | int gpio_nreset; | |
170 | /* GPIO that disable serial bus, if any */ | |
171 | int gpio_disable; | |
fd23fb9f DM |
172 | /* enable soft reset workaround */ |
173 | bool enable_soft_reset; | |
67b22517 AS |
174 | }; |
175 | ||
2e7fb942 MB |
176 | static const struct snd_soc_dapm_widget cs4271_dapm_widgets[] = { |
177 | SND_SOC_DAPM_INPUT("AINA"), | |
178 | SND_SOC_DAPM_INPUT("AINB"), | |
179 | ||
180 | SND_SOC_DAPM_OUTPUT("AOUTA+"), | |
181 | SND_SOC_DAPM_OUTPUT("AOUTA-"), | |
182 | SND_SOC_DAPM_OUTPUT("AOUTB+"), | |
183 | SND_SOC_DAPM_OUTPUT("AOUTB-"), | |
184 | }; | |
185 | ||
186 | static const struct snd_soc_dapm_route cs4271_dapm_routes[] = { | |
187 | { "Capture", NULL, "AINA" }, | |
188 | { "Capture", NULL, "AINB" }, | |
189 | ||
190 | { "AOUTA+", NULL, "Playback" }, | |
191 | { "AOUTA-", NULL, "Playback" }, | |
192 | { "AOUTB+", NULL, "Playback" }, | |
193 | { "AOUTB-", NULL, "Playback" }, | |
194 | }; | |
195 | ||
67b22517 AS |
196 | /* |
197 | * @freq is the desired MCLK rate | |
198 | * MCLK rate should (c) be the sample rate, multiplied by one of the | |
199 | * ratios listed in cs4271_mclk_fs_ratios table | |
200 | */ | |
201 | static int cs4271_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
202 | int clk_id, unsigned int freq, int dir) | |
203 | { | |
204 | struct snd_soc_codec *codec = codec_dai->codec; | |
205 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); | |
206 | ||
207 | cs4271->mclk = freq; | |
208 | return 0; | |
209 | } | |
210 | ||
211 | static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
212 | unsigned int format) | |
213 | { | |
214 | struct snd_soc_codec *codec = codec_dai->codec; | |
215 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); | |
216 | unsigned int val = 0; | |
0d42e6e7 | 217 | int ret; |
67b22517 AS |
218 | |
219 | switch (format & SND_SOC_DAIFMT_MASTER_MASK) { | |
220 | case SND_SOC_DAIFMT_CBS_CFS: | |
221 | cs4271->master = 0; | |
222 | break; | |
223 | case SND_SOC_DAIFMT_CBM_CFM: | |
224 | cs4271->master = 1; | |
225 | val |= CS4271_MODE1_MASTER; | |
226 | break; | |
227 | default: | |
228 | dev_err(codec->dev, "Invalid DAI format\n"); | |
229 | return -EINVAL; | |
230 | } | |
231 | ||
232 | switch (format & SND_SOC_DAIFMT_FORMAT_MASK) { | |
233 | case SND_SOC_DAIFMT_LEFT_J: | |
234 | val |= CS4271_MODE1_DAC_DIF_LJ; | |
1b1861ea | 235 | ret = regmap_update_bits(cs4271->regmap, CS4271_ADCCTL, |
67b22517 | 236 | CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_LJ); |
0d42e6e7 AS |
237 | if (ret < 0) |
238 | return ret; | |
67b22517 AS |
239 | break; |
240 | case SND_SOC_DAIFMT_I2S: | |
241 | val |= CS4271_MODE1_DAC_DIF_I2S; | |
1b1861ea | 242 | ret = regmap_update_bits(cs4271->regmap, CS4271_ADCCTL, |
67b22517 | 243 | CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_I2S); |
0d42e6e7 AS |
244 | if (ret < 0) |
245 | return ret; | |
67b22517 AS |
246 | break; |
247 | default: | |
248 | dev_err(codec->dev, "Invalid DAI format\n"); | |
249 | return -EINVAL; | |
250 | } | |
251 | ||
1b1861ea | 252 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE1, |
67b22517 | 253 | CS4271_MODE1_DAC_DIF_MASK | CS4271_MODE1_MASTER, val); |
0d42e6e7 AS |
254 | if (ret < 0) |
255 | return ret; | |
67b22517 AS |
256 | return 0; |
257 | } | |
258 | ||
259 | static int cs4271_deemph[] = {0, 44100, 48000, 32000}; | |
260 | ||
261 | static int cs4271_set_deemph(struct snd_soc_codec *codec) | |
262 | { | |
263 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); | |
0d42e6e7 | 264 | int i, ret; |
67b22517 AS |
265 | int val = CS4271_DACCTL_DEM_DIS; |
266 | ||
267 | if (cs4271->deemph) { | |
268 | /* Find closest de-emphasis freq */ | |
269 | val = 1; | |
270 | for (i = 2; i < ARRAY_SIZE(cs4271_deemph); i++) | |
271 | if (abs(cs4271_deemph[i] - cs4271->rate) < | |
272 | abs(cs4271_deemph[val] - cs4271->rate)) | |
273 | val = i; | |
274 | val <<= 4; | |
275 | } | |
276 | ||
1b1861ea | 277 | ret = regmap_update_bits(cs4271->regmap, CS4271_DACCTL, |
67b22517 | 278 | CS4271_DACCTL_DEM_MASK, val); |
0d42e6e7 AS |
279 | if (ret < 0) |
280 | return ret; | |
281 | return 0; | |
67b22517 AS |
282 | } |
283 | ||
284 | static int cs4271_get_deemph(struct snd_kcontrol *kcontrol, | |
285 | struct snd_ctl_elem_value *ucontrol) | |
286 | { | |
ea53bf77 | 287 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
67b22517 AS |
288 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); |
289 | ||
290 | ucontrol->value.enumerated.item[0] = cs4271->deemph; | |
291 | return 0; | |
292 | } | |
293 | ||
294 | static int cs4271_put_deemph(struct snd_kcontrol *kcontrol, | |
295 | struct snd_ctl_elem_value *ucontrol) | |
296 | { | |
ea53bf77 | 297 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
67b22517 AS |
298 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); |
299 | ||
300 | cs4271->deemph = ucontrol->value.enumerated.item[0]; | |
301 | return cs4271_set_deemph(codec); | |
302 | } | |
303 | ||
5c3a12e9 AS |
304 | struct cs4271_clk_cfg { |
305 | bool master; /* codec mode */ | |
306 | u8 speed_mode; /* codec speed mode: 1x, 2x, 4x */ | |
307 | unsigned short ratio; /* MCLK / sample rate */ | |
308 | u8 ratio_mask; /* ratio bit mask for Master mode */ | |
309 | }; | |
310 | ||
311 | static struct cs4271_clk_cfg cs4271_clk_tab[] = { | |
312 | {1, CS4271_MODE1_MODE_1X, 256, CS4271_MODE1_DIV_1}, | |
313 | {1, CS4271_MODE1_MODE_1X, 384, CS4271_MODE1_DIV_15}, | |
314 | {1, CS4271_MODE1_MODE_1X, 512, CS4271_MODE1_DIV_2}, | |
315 | {1, CS4271_MODE1_MODE_1X, 768, CS4271_MODE1_DIV_3}, | |
316 | {1, CS4271_MODE1_MODE_2X, 128, CS4271_MODE1_DIV_1}, | |
317 | {1, CS4271_MODE1_MODE_2X, 192, CS4271_MODE1_DIV_15}, | |
318 | {1, CS4271_MODE1_MODE_2X, 256, CS4271_MODE1_DIV_2}, | |
319 | {1, CS4271_MODE1_MODE_2X, 384, CS4271_MODE1_DIV_3}, | |
320 | {1, CS4271_MODE1_MODE_4X, 64, CS4271_MODE1_DIV_1}, | |
321 | {1, CS4271_MODE1_MODE_4X, 96, CS4271_MODE1_DIV_15}, | |
322 | {1, CS4271_MODE1_MODE_4X, 128, CS4271_MODE1_DIV_2}, | |
323 | {1, CS4271_MODE1_MODE_4X, 192, CS4271_MODE1_DIV_3}, | |
324 | {0, CS4271_MODE1_MODE_1X, 256, CS4271_MODE1_DIV_1}, | |
325 | {0, CS4271_MODE1_MODE_1X, 384, CS4271_MODE1_DIV_1}, | |
326 | {0, CS4271_MODE1_MODE_1X, 512, CS4271_MODE1_DIV_1}, | |
327 | {0, CS4271_MODE1_MODE_1X, 768, CS4271_MODE1_DIV_2}, | |
328 | {0, CS4271_MODE1_MODE_1X, 1024, CS4271_MODE1_DIV_2}, | |
329 | {0, CS4271_MODE1_MODE_2X, 128, CS4271_MODE1_DIV_1}, | |
330 | {0, CS4271_MODE1_MODE_2X, 192, CS4271_MODE1_DIV_1}, | |
331 | {0, CS4271_MODE1_MODE_2X, 256, CS4271_MODE1_DIV_1}, | |
332 | {0, CS4271_MODE1_MODE_2X, 384, CS4271_MODE1_DIV_2}, | |
333 | {0, CS4271_MODE1_MODE_2X, 512, CS4271_MODE1_DIV_2}, | |
334 | {0, CS4271_MODE1_MODE_4X, 64, CS4271_MODE1_DIV_1}, | |
335 | {0, CS4271_MODE1_MODE_4X, 96, CS4271_MODE1_DIV_1}, | |
336 | {0, CS4271_MODE1_MODE_4X, 128, CS4271_MODE1_DIV_1}, | |
337 | {0, CS4271_MODE1_MODE_4X, 192, CS4271_MODE1_DIV_2}, | |
338 | {0, CS4271_MODE1_MODE_4X, 256, CS4271_MODE1_DIV_2}, | |
339 | }; | |
340 | ||
341 | #define CS4171_NR_RATIOS ARRAY_SIZE(cs4271_clk_tab) | |
342 | ||
67b22517 AS |
343 | static int cs4271_hw_params(struct snd_pcm_substream *substream, |
344 | struct snd_pcm_hw_params *params, | |
345 | struct snd_soc_dai *dai) | |
346 | { | |
e6968a17 | 347 | struct snd_soc_codec *codec = dai->codec; |
67b22517 | 348 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); |
0d42e6e7 AS |
349 | int i, ret; |
350 | unsigned int ratio, val; | |
67b22517 | 351 | |
fd23fb9f DM |
352 | if (cs4271->enable_soft_reset) { |
353 | /* | |
354 | * Put the codec in soft reset and back again in case it's not | |
355 | * currently streaming data. This way of bringing the codec in | |
356 | * sync to the current clocks is not explicitly documented in | |
357 | * the data sheet, but it seems to work fine, and in contrast | |
358 | * to a read hardware reset, we don't have to sync back all | |
359 | * registers every time. | |
360 | */ | |
361 | ||
362 | if ((substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
363 | !dai->capture_active) || | |
364 | (substream->stream == SNDRV_PCM_STREAM_CAPTURE && | |
365 | !dai->playback_active)) { | |
1b1861ea DM |
366 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
367 | CS4271_MODE2_PDN, | |
368 | CS4271_MODE2_PDN); | |
fd23fb9f DM |
369 | if (ret < 0) |
370 | return ret; | |
371 | ||
1b1861ea DM |
372 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
373 | CS4271_MODE2_PDN, 0); | |
fd23fb9f DM |
374 | if (ret < 0) |
375 | return ret; | |
376 | } | |
377 | } | |
378 | ||
67b22517 | 379 | cs4271->rate = params_rate(params); |
5c3a12e9 AS |
380 | |
381 | /* Configure DAC */ | |
382 | if (cs4271->rate < 50000) | |
383 | val = CS4271_MODE1_MODE_1X; | |
384 | else if (cs4271->rate < 100000) | |
385 | val = CS4271_MODE1_MODE_2X; | |
386 | else | |
387 | val = CS4271_MODE1_MODE_4X; | |
388 | ||
67b22517 AS |
389 | ratio = cs4271->mclk / cs4271->rate; |
390 | for (i = 0; i < CS4171_NR_RATIOS; i++) | |
5c3a12e9 AS |
391 | if ((cs4271_clk_tab[i].master == cs4271->master) && |
392 | (cs4271_clk_tab[i].speed_mode == val) && | |
393 | (cs4271_clk_tab[i].ratio == ratio)) | |
67b22517 AS |
394 | break; |
395 | ||
5c3a12e9 | 396 | if (i == CS4171_NR_RATIOS) { |
67b22517 AS |
397 | dev_err(codec->dev, "Invalid sample rate\n"); |
398 | return -EINVAL; | |
399 | } | |
400 | ||
5c3a12e9 | 401 | val |= cs4271_clk_tab[i].ratio_mask; |
67b22517 | 402 | |
1b1861ea | 403 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE1, |
67b22517 | 404 | CS4271_MODE1_MODE_MASK | CS4271_MODE1_DIV_MASK, val); |
0d42e6e7 AS |
405 | if (ret < 0) |
406 | return ret; | |
67b22517 AS |
407 | |
408 | return cs4271_set_deemph(codec); | |
409 | } | |
410 | ||
c24a34db | 411 | static int cs4271_mute_stream(struct snd_soc_dai *dai, int mute, int stream) |
67b22517 AS |
412 | { |
413 | struct snd_soc_codec *codec = dai->codec; | |
1b1861ea | 414 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); |
0d42e6e7 | 415 | int ret; |
67b22517 AS |
416 | int val_a = 0; |
417 | int val_b = 0; | |
418 | ||
c24a34db DM |
419 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
420 | return 0; | |
421 | ||
67b22517 AS |
422 | if (mute) { |
423 | val_a = CS4271_VOLA_MUTE; | |
424 | val_b = CS4271_VOLB_MUTE; | |
425 | } | |
426 | ||
1b1861ea DM |
427 | ret = regmap_update_bits(cs4271->regmap, CS4271_VOLA, |
428 | CS4271_VOLA_MUTE, val_a); | |
0d42e6e7 AS |
429 | if (ret < 0) |
430 | return ret; | |
1b1861ea DM |
431 | |
432 | ret = regmap_update_bits(cs4271->regmap, CS4271_VOLB, | |
433 | CS4271_VOLB_MUTE, val_b); | |
0d42e6e7 AS |
434 | if (ret < 0) |
435 | return ret; | |
67b22517 AS |
436 | |
437 | return 0; | |
438 | } | |
439 | ||
440 | /* CS4271 controls */ | |
441 | static DECLARE_TLV_DB_SCALE(cs4271_dac_tlv, -12700, 100, 0); | |
442 | ||
443 | static const struct snd_kcontrol_new cs4271_snd_controls[] = { | |
444 | SOC_DOUBLE_R_TLV("Master Playback Volume", CS4271_VOLA, CS4271_VOLB, | |
445 | 0, 0x7F, 1, cs4271_dac_tlv), | |
446 | SOC_SINGLE("Digital Loopback Switch", CS4271_MODE2, 4, 1, 0), | |
447 | SOC_SINGLE("Soft Ramp Switch", CS4271_DACVOL, 5, 1, 0), | |
448 | SOC_SINGLE("Zero Cross Switch", CS4271_DACVOL, 4, 1, 0), | |
449 | SOC_SINGLE_BOOL_EXT("De-emphasis Switch", 0, | |
450 | cs4271_get_deemph, cs4271_put_deemph), | |
451 | SOC_SINGLE("Auto-Mute Switch", CS4271_DACCTL, 7, 1, 0), | |
452 | SOC_SINGLE("Slow Roll Off Filter Switch", CS4271_DACCTL, 6, 1, 0), | |
453 | SOC_SINGLE("Soft Volume Ramp-Up Switch", CS4271_DACCTL, 3, 1, 0), | |
454 | SOC_SINGLE("Soft Ramp-Down Switch", CS4271_DACCTL, 2, 1, 0), | |
455 | SOC_SINGLE("Left Channel Inversion Switch", CS4271_DACCTL, 1, 1, 0), | |
456 | SOC_SINGLE("Right Channel Inversion Switch", CS4271_DACCTL, 0, 1, 0), | |
457 | SOC_DOUBLE("Master Capture Switch", CS4271_ADCCTL, 3, 2, 1, 1), | |
458 | SOC_SINGLE("Dither 16-Bit Data Switch", CS4271_ADCCTL, 5, 1, 0), | |
459 | SOC_DOUBLE("High Pass Filter Switch", CS4271_ADCCTL, 1, 0, 1, 1), | |
460 | SOC_DOUBLE_R("Master Playback Switch", CS4271_VOLA, CS4271_VOLB, | |
461 | 7, 1, 1), | |
462 | }; | |
463 | ||
85e7652d | 464 | static const struct snd_soc_dai_ops cs4271_dai_ops = { |
67b22517 AS |
465 | .hw_params = cs4271_hw_params, |
466 | .set_sysclk = cs4271_set_dai_sysclk, | |
467 | .set_fmt = cs4271_set_dai_fmt, | |
c24a34db | 468 | .mute_stream = cs4271_mute_stream, |
67b22517 AS |
469 | }; |
470 | ||
16af7d60 | 471 | static struct snd_soc_dai_driver cs4271_dai = { |
67b22517 AS |
472 | .name = "cs4271-hifi", |
473 | .playback = { | |
474 | .stream_name = "Playback", | |
475 | .channels_min = 2, | |
476 | .channels_max = 2, | |
383f8465 | 477 | .rates = CS4271_PCM_RATES, |
67b22517 AS |
478 | .formats = CS4271_PCM_FORMATS, |
479 | }, | |
480 | .capture = { | |
481 | .stream_name = "Capture", | |
482 | .channels_min = 2, | |
483 | .channels_max = 2, | |
383f8465 | 484 | .rates = CS4271_PCM_RATES, |
67b22517 AS |
485 | .formats = CS4271_PCM_FORMATS, |
486 | }, | |
487 | .ops = &cs4271_dai_ops, | |
488 | .symmetric_rates = 1, | |
489 | }; | |
490 | ||
491 | #ifdef CONFIG_PM | |
84b315ee | 492 | static int cs4271_soc_suspend(struct snd_soc_codec *codec) |
67b22517 | 493 | { |
0d42e6e7 | 494 | int ret; |
1b1861ea DM |
495 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); |
496 | ||
67b22517 | 497 | /* Set power-down bit */ |
1b1861ea DM |
498 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
499 | CS4271_MODE2_PDN, CS4271_MODE2_PDN); | |
0d42e6e7 AS |
500 | if (ret < 0) |
501 | return ret; | |
1b1861ea | 502 | |
67b22517 AS |
503 | return 0; |
504 | } | |
505 | ||
506 | static int cs4271_soc_resume(struct snd_soc_codec *codec) | |
507 | { | |
0d42e6e7 | 508 | int ret; |
1b1861ea DM |
509 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); |
510 | ||
67b22517 | 511 | /* Restore codec state */ |
1b1861ea | 512 | ret = regcache_sync(cs4271->regmap); |
0d42e6e7 AS |
513 | if (ret < 0) |
514 | return ret; | |
1b1861ea | 515 | |
67b22517 | 516 | /* then disable the power-down bit */ |
1b1861ea DM |
517 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
518 | CS4271_MODE2_PDN, 0); | |
0d42e6e7 AS |
519 | if (ret < 0) |
520 | return ret; | |
1b1861ea | 521 | |
67b22517 AS |
522 | return 0; |
523 | } | |
524 | #else | |
525 | #define cs4271_soc_suspend NULL | |
526 | #define cs4271_soc_resume NULL | |
527 | #endif /* CONFIG_PM */ | |
528 | ||
a31ebc34 DM |
529 | #ifdef CONFIG_OF |
530 | static const struct of_device_id cs4271_dt_ids[] = { | |
531 | { .compatible = "cirrus,cs4271", }, | |
532 | { } | |
533 | }; | |
534 | MODULE_DEVICE_TABLE(of, cs4271_dt_ids); | |
535 | #endif | |
536 | ||
67b22517 AS |
537 | static int cs4271_probe(struct snd_soc_codec *codec) |
538 | { | |
539 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); | |
540 | struct cs4271_platform_data *cs4271plat = codec->dev->platform_data; | |
541 | int ret; | |
26047e2d | 542 | bool amutec_eq_bmutec = false; |
67b22517 | 543 | |
a31ebc34 | 544 | #ifdef CONFIG_OF |
293750f9 | 545 | if (of_match_device(cs4271_dt_ids, codec->dev)) { |
b8455c9f | 546 | if (of_get_property(codec->dev->of_node, |
293750f9 | 547 | "cirrus,amutec-eq-bmutec", NULL)) |
26047e2d | 548 | amutec_eq_bmutec = true; |
fd23fb9f DM |
549 | |
550 | if (of_get_property(codec->dev->of_node, | |
551 | "cirrus,enable-soft-reset", NULL)) | |
552 | cs4271->enable_soft_reset = true; | |
293750f9 | 553 | } |
a31ebc34 DM |
554 | #endif |
555 | ||
293750f9 | 556 | if (cs4271plat) { |
293750f9 | 557 | amutec_eq_bmutec = cs4271plat->amutec_eq_bmutec; |
fd23fb9f | 558 | cs4271->enable_soft_reset = cs4271plat->enable_soft_reset; |
293750f9 | 559 | } |
67b22517 | 560 | |
d6cf89ee | 561 | if (gpio_is_valid(cs4271->gpio_nreset)) { |
67b22517 | 562 | /* Reset codec */ |
d6cf89ee | 563 | gpio_direction_output(cs4271->gpio_nreset, 0); |
67b22517 | 564 | udelay(1); |
d6cf89ee | 565 | gpio_set_value(cs4271->gpio_nreset, 1); |
67b22517 AS |
566 | /* Give the codec time to wake up */ |
567 | udelay(1); | |
568 | } | |
569 | ||
1b1861ea DM |
570 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
571 | CS4271_MODE2_PDN | CS4271_MODE2_CPEN, | |
572 | CS4271_MODE2_PDN | CS4271_MODE2_CPEN); | |
0d42e6e7 AS |
573 | if (ret < 0) |
574 | return ret; | |
1b1861ea DM |
575 | ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
576 | CS4271_MODE2_PDN, 0); | |
0d42e6e7 AS |
577 | if (ret < 0) |
578 | return ret; | |
67b22517 AS |
579 | /* Power-up sequence requires 85 uS */ |
580 | udelay(85); | |
581 | ||
293750f9 | 582 | if (amutec_eq_bmutec) |
1b1861ea DM |
583 | regmap_update_bits(cs4271->regmap, CS4271_MODE2, |
584 | CS4271_MODE2_MUTECAEQUB, | |
585 | CS4271_MODE2_MUTECAEQUB); | |
293750f9 | 586 | |
bad268f3 | 587 | return 0; |
67b22517 AS |
588 | } |
589 | ||
590 | static int cs4271_remove(struct snd_soc_codec *codec) | |
591 | { | |
592 | struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); | |
67b22517 | 593 | |
5574f774 | 594 | if (gpio_is_valid(cs4271->gpio_nreset)) |
67b22517 | 595 | /* Set codec to the reset state */ |
5574f774 | 596 | gpio_set_value(cs4271->gpio_nreset, 0); |
67b22517 | 597 | |
67b22517 AS |
598 | return 0; |
599 | }; | |
600 | ||
16af7d60 | 601 | static struct snd_soc_codec_driver soc_codec_dev_cs4271 = { |
67b22517 AS |
602 | .probe = cs4271_probe, |
603 | .remove = cs4271_remove, | |
604 | .suspend = cs4271_soc_suspend, | |
605 | .resume = cs4271_soc_resume, | |
bad268f3 MB |
606 | |
607 | .controls = cs4271_snd_controls, | |
608 | .num_controls = ARRAY_SIZE(cs4271_snd_controls), | |
2e7fb942 MB |
609 | .dapm_widgets = cs4271_dapm_widgets, |
610 | .num_dapm_widgets = ARRAY_SIZE(cs4271_dapm_widgets), | |
611 | .dapm_routes = cs4271_dapm_routes, | |
612 | .num_dapm_routes = ARRAY_SIZE(cs4271_dapm_routes), | |
67b22517 AS |
613 | }; |
614 | ||
d6cf89ee DM |
615 | static int cs4271_common_probe(struct device *dev, |
616 | struct cs4271_private **c) | |
67b22517 | 617 | { |
d6cf89ee | 618 | struct cs4271_platform_data *cs4271plat = dev->platform_data; |
67b22517 AS |
619 | struct cs4271_private *cs4271; |
620 | ||
d6cf89ee | 621 | cs4271 = devm_kzalloc(dev, sizeof(*cs4271), GFP_KERNEL); |
67b22517 AS |
622 | if (!cs4271) |
623 | return -ENOMEM; | |
624 | ||
d6cf89ee DM |
625 | if (of_match_device(cs4271_dt_ids, dev)) |
626 | cs4271->gpio_nreset = | |
627 | of_get_named_gpio(dev->of_node, "reset-gpio", 0); | |
628 | ||
629 | if (cs4271plat) | |
630 | cs4271->gpio_nreset = cs4271plat->gpio_nreset; | |
631 | ||
632 | if (gpio_is_valid(cs4271->gpio_nreset)) { | |
633 | int ret; | |
634 | ||
635 | ret = devm_gpio_request(dev, cs4271->gpio_nreset, | |
636 | "CS4271 Reset"); | |
637 | if (ret < 0) | |
638 | return ret; | |
639 | } | |
640 | ||
641 | *c = cs4271; | |
642 | return 0; | |
643 | } | |
644 | ||
9c369c6e TI |
645 | #if defined(CONFIG_SPI_MASTER) |
646 | ||
647 | static const struct regmap_config cs4271_spi_regmap = { | |
648 | .reg_bits = 16, | |
649 | .val_bits = 8, | |
650 | .max_register = CS4271_LASTREG, | |
651 | .read_flag_mask = 0x21, | |
652 | .write_flag_mask = 0x20, | |
653 | ||
654 | .reg_defaults = cs4271_reg_defaults, | |
655 | .num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults), | |
656 | .cache_type = REGCACHE_RBTREE, | |
657 | ||
658 | .volatile_reg = cs4271_volatile_reg, | |
659 | }; | |
660 | ||
d6cf89ee DM |
661 | static int cs4271_spi_probe(struct spi_device *spi) |
662 | { | |
663 | struct cs4271_private *cs4271; | |
664 | int ret; | |
665 | ||
666 | ret = cs4271_common_probe(&spi->dev, &cs4271); | |
667 | if (ret < 0) | |
668 | return ret; | |
669 | ||
67b22517 | 670 | spi_set_drvdata(spi, cs4271); |
1b1861ea DM |
671 | cs4271->regmap = devm_regmap_init_spi(spi, &cs4271_spi_regmap); |
672 | if (IS_ERR(cs4271->regmap)) | |
673 | return PTR_ERR(cs4271->regmap); | |
67b22517 AS |
674 | |
675 | return snd_soc_register_codec(&spi->dev, &soc_codec_dev_cs4271, | |
676 | &cs4271_dai, 1); | |
677 | } | |
678 | ||
7a79e94e | 679 | static int cs4271_spi_remove(struct spi_device *spi) |
67b22517 AS |
680 | { |
681 | snd_soc_unregister_codec(&spi->dev); | |
682 | return 0; | |
683 | } | |
684 | ||
685 | static struct spi_driver cs4271_spi_driver = { | |
686 | .driver = { | |
687 | .name = "cs4271", | |
688 | .owner = THIS_MODULE, | |
a31ebc34 | 689 | .of_match_table = of_match_ptr(cs4271_dt_ids), |
67b22517 AS |
690 | }, |
691 | .probe = cs4271_spi_probe, | |
7a79e94e | 692 | .remove = cs4271_spi_remove, |
67b22517 AS |
693 | }; |
694 | #endif /* defined(CONFIG_SPI_MASTER) */ | |
695 | ||
516ea4b5 | 696 | #if IS_ENABLED(CONFIG_I2C) |
79a54ea1 | 697 | static const struct i2c_device_id cs4271_i2c_id[] = { |
67b22517 AS |
698 | {"cs4271", 0}, |
699 | {} | |
700 | }; | |
701 | MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id); | |
702 | ||
1b1861ea DM |
703 | static const struct regmap_config cs4271_i2c_regmap = { |
704 | .reg_bits = 8, | |
705 | .val_bits = 8, | |
706 | .max_register = CS4271_LASTREG, | |
707 | ||
708 | .reg_defaults = cs4271_reg_defaults, | |
709 | .num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults), | |
710 | .cache_type = REGCACHE_RBTREE, | |
711 | ||
712 | .volatile_reg = cs4271_volatile_reg, | |
713 | }; | |
714 | ||
7a79e94e BP |
715 | static int cs4271_i2c_probe(struct i2c_client *client, |
716 | const struct i2c_device_id *id) | |
67b22517 AS |
717 | { |
718 | struct cs4271_private *cs4271; | |
d6cf89ee | 719 | int ret; |
67b22517 | 720 | |
d6cf89ee DM |
721 | ret = cs4271_common_probe(&client->dev, &cs4271); |
722 | if (ret < 0) | |
723 | return ret; | |
67b22517 AS |
724 | |
725 | i2c_set_clientdata(client, cs4271); | |
1b1861ea DM |
726 | cs4271->regmap = devm_regmap_init_i2c(client, &cs4271_i2c_regmap); |
727 | if (IS_ERR(cs4271->regmap)) | |
728 | return PTR_ERR(cs4271->regmap); | |
67b22517 AS |
729 | |
730 | return snd_soc_register_codec(&client->dev, &soc_codec_dev_cs4271, | |
731 | &cs4271_dai, 1); | |
732 | } | |
733 | ||
7a79e94e | 734 | static int cs4271_i2c_remove(struct i2c_client *client) |
67b22517 AS |
735 | { |
736 | snd_soc_unregister_codec(&client->dev); | |
737 | return 0; | |
738 | } | |
739 | ||
740 | static struct i2c_driver cs4271_i2c_driver = { | |
741 | .driver = { | |
742 | .name = "cs4271", | |
743 | .owner = THIS_MODULE, | |
a31ebc34 | 744 | .of_match_table = of_match_ptr(cs4271_dt_ids), |
67b22517 AS |
745 | }, |
746 | .id_table = cs4271_i2c_id, | |
747 | .probe = cs4271_i2c_probe, | |
7a79e94e | 748 | .remove = cs4271_i2c_remove, |
67b22517 | 749 | }; |
516ea4b5 | 750 | #endif /* IS_ENABLED(CONFIG_I2C) */ |
67b22517 AS |
751 | |
752 | /* | |
753 | * We only register our serial bus driver here without | |
754 | * assignment to particular chip. So if any of the below | |
755 | * fails, there is some problem with I2C or SPI subsystem. | |
756 | * In most cases this module will be compiled with support | |
757 | * of only one serial bus. | |
758 | */ | |
759 | static int __init cs4271_modinit(void) | |
760 | { | |
761 | int ret; | |
762 | ||
516ea4b5 | 763 | #if IS_ENABLED(CONFIG_I2C) |
67b22517 AS |
764 | ret = i2c_add_driver(&cs4271_i2c_driver); |
765 | if (ret) { | |
766 | pr_err("Failed to register CS4271 I2C driver: %d\n", ret); | |
767 | return ret; | |
768 | } | |
769 | #endif | |
770 | ||
771 | #if defined(CONFIG_SPI_MASTER) | |
772 | ret = spi_register_driver(&cs4271_spi_driver); | |
773 | if (ret) { | |
774 | pr_err("Failed to register CS4271 SPI driver: %d\n", ret); | |
775 | return ret; | |
776 | } | |
777 | #endif | |
778 | ||
779 | return 0; | |
780 | } | |
781 | module_init(cs4271_modinit); | |
782 | ||
783 | static void __exit cs4271_modexit(void) | |
784 | { | |
785 | #if defined(CONFIG_SPI_MASTER) | |
786 | spi_unregister_driver(&cs4271_spi_driver); | |
787 | #endif | |
788 | ||
516ea4b5 | 789 | #if IS_ENABLED(CONFIG_I2C) |
67b22517 AS |
790 | i2c_del_driver(&cs4271_i2c_driver); |
791 | #endif | |
792 | } | |
793 | module_exit(cs4271_modexit); | |
794 | ||
795 | MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>"); | |
796 | MODULE_DESCRIPTION("Cirrus Logic CS4271 ALSA SoC Codec Driver"); | |
797 | MODULE_LICENSE("GPL"); |