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fb6f8069 PH |
1 | /* |
2 | * cs4265.c -- CS4265 ALSA SoC audio driver | |
3 | * | |
4 | * Copyright 2014 Cirrus Logic, Inc. | |
5 | * | |
6 | * Author: Paul Handrigan <paul.handrigan@cirrus.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | */ | |
13 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/kernel.h> | |
17 | #include <linux/gpio/consumer.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/input.h> | |
22 | #include <linux/regmap.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/platform_device.h> | |
25 | #include <sound/core.h> | |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
29 | #include <sound/soc-dapm.h> | |
30 | #include <sound/initval.h> | |
31 | #include <sound/tlv.h> | |
32 | #include "cs4265.h" | |
33 | ||
34 | struct cs4265_private { | |
fb6f8069 PH |
35 | struct regmap *regmap; |
36 | struct gpio_desc *reset_gpio; | |
37 | u8 format; | |
38 | u32 sysclk; | |
39 | }; | |
40 | ||
41 | static const struct reg_default cs4265_reg_defaults[] = { | |
42 | { CS4265_PWRCTL, 0x0F }, | |
43 | { CS4265_DAC_CTL, 0x08 }, | |
44 | { CS4265_ADC_CTL, 0x00 }, | |
45 | { CS4265_MCLK_FREQ, 0x00 }, | |
46 | { CS4265_SIG_SEL, 0x40 }, | |
47 | { CS4265_CHB_PGA_CTL, 0x00 }, | |
48 | { CS4265_CHA_PGA_CTL, 0x00 }, | |
49 | { CS4265_ADC_CTL2, 0x19 }, | |
50 | { CS4265_DAC_CHA_VOL, 0x00 }, | |
51 | { CS4265_DAC_CHB_VOL, 0x00 }, | |
52 | { CS4265_DAC_CTL2, 0xC0 }, | |
53 | { CS4265_SPDIF_CTL1, 0x00 }, | |
54 | { CS4265_SPDIF_CTL2, 0x00 }, | |
55 | { CS4265_INT_MASK, 0x00 }, | |
56 | { CS4265_STATUS_MODE_MSB, 0x00 }, | |
57 | { CS4265_STATUS_MODE_LSB, 0x00 }, | |
58 | }; | |
59 | ||
60 | static bool cs4265_readable_register(struct device *dev, unsigned int reg) | |
61 | { | |
62 | switch (reg) { | |
80deaf09 | 63 | case CS4265_CHIP_ID ... CS4265_SPDIF_CTL2: |
fb6f8069 PH |
64 | return true; |
65 | default: | |
66 | return false; | |
67 | } | |
68 | } | |
69 | ||
70 | static bool cs4265_volatile_register(struct device *dev, unsigned int reg) | |
71 | { | |
72 | switch (reg) { | |
73 | case CS4265_INT_STATUS: | |
59f5cbec | 74 | return true; |
fb6f8069 | 75 | default: |
59f5cbec | 76 | return false; |
fb6f8069 PH |
77 | } |
78 | } | |
79 | ||
80 | static DECLARE_TLV_DB_SCALE(pga_tlv, -1200, 50, 0); | |
81 | ||
82 | static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 0); | |
83 | ||
84 | static const char * const digital_input_mux_text[] = { | |
85 | "SDIN1", "SDIN2" | |
86 | }; | |
87 | ||
88 | static SOC_ENUM_SINGLE_DECL(digital_input_mux_enum, CS4265_SIG_SEL, 7, | |
89 | digital_input_mux_text); | |
90 | ||
91 | static const struct snd_kcontrol_new digital_input_mux = | |
92 | SOC_DAPM_ENUM("Digital Input Mux", digital_input_mux_enum); | |
93 | ||
94 | static const char * const mic_linein_text[] = { | |
95 | "MIC", "LINEIN" | |
96 | }; | |
97 | ||
98 | static SOC_ENUM_SINGLE_DECL(mic_linein_enum, CS4265_ADC_CTL2, 0, | |
99 | mic_linein_text); | |
100 | ||
101 | static const char * const cam_mode_text[] = { | |
102 | "One Byte", "Two Byte" | |
103 | }; | |
104 | ||
105 | static SOC_ENUM_SINGLE_DECL(cam_mode_enum, CS4265_SPDIF_CTL1, 5, | |
106 | cam_mode_text); | |
107 | ||
108 | static const char * const cam_mono_stereo_text[] = { | |
109 | "Stereo", "Mono" | |
110 | }; | |
111 | ||
112 | static SOC_ENUM_SINGLE_DECL(spdif_mono_stereo_enum, CS4265_SPDIF_CTL2, 2, | |
113 | cam_mono_stereo_text); | |
114 | ||
115 | static const char * const mono_select_text[] = { | |
116 | "Channel A", "Channel B" | |
117 | }; | |
118 | ||
119 | static SOC_ENUM_SINGLE_DECL(spdif_mono_select_enum, CS4265_SPDIF_CTL2, 0, | |
120 | mono_select_text); | |
121 | ||
122 | static const struct snd_kcontrol_new mic_linein_mux = | |
123 | SOC_DAPM_ENUM("ADC Input Capture Mux", mic_linein_enum); | |
124 | ||
125 | static const struct snd_kcontrol_new loopback_ctl = | |
126 | SOC_DAPM_SINGLE("Switch", CS4265_SIG_SEL, 1, 1, 0); | |
127 | ||
128 | static const struct snd_kcontrol_new spdif_switch = | |
129 | SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 0, 0); | |
130 | ||
131 | static const struct snd_kcontrol_new dac_switch = | |
132 | SOC_DAPM_SINGLE("Switch", CS4265_PWRCTL, 1, 1, 0); | |
133 | ||
134 | static const struct snd_kcontrol_new cs4265_snd_controls[] = { | |
135 | ||
136 | SOC_DOUBLE_R_SX_TLV("PGA Volume", CS4265_CHA_PGA_CTL, | |
137 | CS4265_CHB_PGA_CTL, 0, 0x28, 0x30, pga_tlv), | |
138 | SOC_DOUBLE_R_TLV("DAC Volume", CS4265_DAC_CHA_VOL, | |
139 | CS4265_DAC_CHB_VOL, 0, 0xFF, 1, dac_tlv), | |
140 | SOC_SINGLE("De-emp 44.1kHz Switch", CS4265_DAC_CTL, 1, | |
141 | 1, 0), | |
142 | SOC_SINGLE("DAC INV Switch", CS4265_DAC_CTL2, 5, | |
143 | 1, 0), | |
144 | SOC_SINGLE("DAC Zero Cross Switch", CS4265_DAC_CTL2, 6, | |
145 | 1, 0), | |
146 | SOC_SINGLE("DAC Soft Ramp Switch", CS4265_DAC_CTL2, 7, | |
147 | 1, 0), | |
148 | SOC_SINGLE("ADC HPF Switch", CS4265_ADC_CTL, 1, | |
149 | 1, 0), | |
150 | SOC_SINGLE("ADC Zero Cross Switch", CS4265_ADC_CTL2, 3, | |
151 | 1, 1), | |
152 | SOC_SINGLE("ADC Soft Ramp Switch", CS4265_ADC_CTL2, 7, | |
153 | 1, 0), | |
154 | SOC_SINGLE("E to F Buffer Disable Switch", CS4265_SPDIF_CTL1, | |
155 | 6, 1, 0), | |
156 | SOC_ENUM("C Data Access", cam_mode_enum), | |
157 | SOC_SINGLE("Validity Bit Control Switch", CS4265_SPDIF_CTL2, | |
158 | 3, 1, 0), | |
159 | SOC_ENUM("SPDIF Mono/Stereo", spdif_mono_stereo_enum), | |
160 | SOC_SINGLE("MMTLR Data Switch", 0, | |
161 | 1, 1, 0), | |
162 | SOC_ENUM("Mono Channel Select", spdif_mono_select_enum), | |
163 | SND_SOC_BYTES("C Data Buffer", CS4265_C_DATA_BUFF, 24), | |
164 | }; | |
165 | ||
166 | static const struct snd_soc_dapm_widget cs4265_dapm_widgets[] = { | |
167 | ||
168 | SND_SOC_DAPM_INPUT("LINEINL"), | |
169 | SND_SOC_DAPM_INPUT("LINEINR"), | |
170 | SND_SOC_DAPM_INPUT("MICL"), | |
171 | SND_SOC_DAPM_INPUT("MICR"), | |
172 | ||
173 | SND_SOC_DAPM_AIF_OUT("DOUT", NULL, 0, | |
174 | SND_SOC_NOPM, 0, 0), | |
175 | SND_SOC_DAPM_AIF_OUT("SPDIFOUT", NULL, 0, | |
176 | SND_SOC_NOPM, 0, 0), | |
177 | ||
178 | SND_SOC_DAPM_MUX("ADC Mux", SND_SOC_NOPM, 0, 0, &mic_linein_mux), | |
179 | ||
180 | SND_SOC_DAPM_ADC("ADC", NULL, CS4265_PWRCTL, 2, 1), | |
181 | SND_SOC_DAPM_PGA("Pre-amp MIC", CS4265_PWRCTL, 3, | |
182 | 1, NULL, 0), | |
183 | ||
184 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, | |
185 | 0, 0, &digital_input_mux), | |
186 | ||
187 | SND_SOC_DAPM_MIXER("SDIN1 Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), | |
188 | SND_SOC_DAPM_MIXER("SDIN2 Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), | |
189 | SND_SOC_DAPM_MIXER("SPDIF Transmitter", SND_SOC_NOPM, 0, 0, NULL, 0), | |
190 | ||
191 | SND_SOC_DAPM_SWITCH("Loopback", SND_SOC_NOPM, 0, 0, | |
192 | &loopback_ctl), | |
193 | SND_SOC_DAPM_SWITCH("SPDIF", SND_SOC_NOPM, 0, 0, | |
194 | &spdif_switch), | |
195 | SND_SOC_DAPM_SWITCH("DAC", CS4265_PWRCTL, 1, 1, | |
196 | &dac_switch), | |
197 | ||
198 | SND_SOC_DAPM_AIF_IN("DIN1", NULL, 0, | |
199 | SND_SOC_NOPM, 0, 0), | |
200 | SND_SOC_DAPM_AIF_IN("DIN2", NULL, 0, | |
201 | SND_SOC_NOPM, 0, 0), | |
202 | SND_SOC_DAPM_AIF_IN("TXIN", NULL, 0, | |
203 | CS4265_SPDIF_CTL2, 5, 1), | |
204 | ||
205 | SND_SOC_DAPM_OUTPUT("LINEOUTL"), | |
206 | SND_SOC_DAPM_OUTPUT("LINEOUTR"), | |
207 | ||
208 | }; | |
209 | ||
210 | static const struct snd_soc_dapm_route cs4265_audio_map[] = { | |
211 | ||
212 | {"DIN1", NULL, "DAI1 Playback"}, | |
213 | {"DIN2", NULL, "DAI2 Playback"}, | |
214 | {"SDIN1 Input Mixer", NULL, "DIN1"}, | |
215 | {"SDIN2 Input Mixer", NULL, "DIN2"}, | |
216 | {"Input Mux", "SDIN1", "SDIN1 Input Mixer"}, | |
217 | {"Input Mux", "SDIN2", "SDIN2 Input Mixer"}, | |
218 | {"DAC", "Switch", "Input Mux"}, | |
219 | {"SPDIF", "Switch", "Input Mux"}, | |
220 | {"LINEOUTL", NULL, "DAC"}, | |
221 | {"LINEOUTR", NULL, "DAC"}, | |
222 | {"SPDIFOUT", NULL, "SPDIF"}, | |
223 | ||
224 | {"ADC Mux", "LINEIN", "LINEINL"}, | |
225 | {"ADC Mux", "LINEIN", "LINEINR"}, | |
226 | {"ADC Mux", "MIC", "MICL"}, | |
227 | {"ADC Mux", "MIC", "MICR"}, | |
228 | {"ADC", NULL, "ADC Mux"}, | |
229 | {"DOUT", NULL, "ADC"}, | |
230 | {"DAI1 Capture", NULL, "DOUT"}, | |
231 | {"DAI2 Capture", NULL, "DOUT"}, | |
232 | ||
233 | /* Loopback */ | |
234 | {"Loopback", "Switch", "ADC"}, | |
235 | {"DAC", NULL, "Loopback"}, | |
236 | }; | |
237 | ||
238 | struct cs4265_clk_para { | |
239 | u32 mclk; | |
240 | u32 rate; | |
241 | u8 fm_mode; /* values 1, 2, or 4 */ | |
242 | u8 mclkdiv; | |
243 | }; | |
244 | ||
245 | static const struct cs4265_clk_para clk_map_table[] = { | |
246 | /*32k*/ | |
247 | {8192000, 32000, 0, 0}, | |
248 | {12288000, 32000, 0, 1}, | |
249 | {16384000, 32000, 0, 2}, | |
250 | {24576000, 32000, 0, 3}, | |
251 | {32768000, 32000, 0, 4}, | |
252 | ||
253 | /*44.1k*/ | |
254 | {11289600, 44100, 0, 0}, | |
255 | {16934400, 44100, 0, 1}, | |
256 | {22579200, 44100, 0, 2}, | |
257 | {33868000, 44100, 0, 3}, | |
258 | {45158400, 44100, 0, 4}, | |
259 | ||
260 | /*48k*/ | |
261 | {12288000, 48000, 0, 0}, | |
262 | {18432000, 48000, 0, 1}, | |
263 | {24576000, 48000, 0, 2}, | |
264 | {36864000, 48000, 0, 3}, | |
265 | {49152000, 48000, 0, 4}, | |
266 | ||
267 | /*64k*/ | |
268 | {8192000, 64000, 1, 0}, | |
c98853ae PH |
269 | {12288000, 64000, 1, 1}, |
270 | {16934400, 64000, 1, 2}, | |
271 | {24576000, 64000, 1, 3}, | |
272 | {32768000, 64000, 1, 4}, | |
fb6f8069 PH |
273 | |
274 | /* 88.2k */ | |
275 | {11289600, 88200, 1, 0}, | |
276 | {16934400, 88200, 1, 1}, | |
277 | {22579200, 88200, 1, 2}, | |
278 | {33868000, 88200, 1, 3}, | |
279 | {45158400, 88200, 1, 4}, | |
280 | ||
281 | /* 96k */ | |
282 | {12288000, 96000, 1, 0}, | |
283 | {18432000, 96000, 1, 1}, | |
284 | {24576000, 96000, 1, 2}, | |
285 | {36864000, 96000, 1, 3}, | |
286 | {49152000, 96000, 1, 4}, | |
287 | ||
288 | /* 128k */ | |
289 | {8192000, 128000, 2, 0}, | |
290 | {12288000, 128000, 2, 1}, | |
291 | {16934400, 128000, 2, 2}, | |
292 | {24576000, 128000, 2, 3}, | |
293 | {32768000, 128000, 2, 4}, | |
294 | ||
295 | /* 176.4k */ | |
296 | {11289600, 176400, 2, 0}, | |
297 | {16934400, 176400, 2, 1}, | |
298 | {22579200, 176400, 2, 2}, | |
299 | {33868000, 176400, 2, 3}, | |
300 | {49152000, 176400, 2, 4}, | |
301 | ||
302 | /* 192k */ | |
303 | {12288000, 192000, 2, 0}, | |
304 | {18432000, 192000, 2, 1}, | |
305 | {24576000, 192000, 2, 2}, | |
306 | {36864000, 192000, 2, 3}, | |
307 | {49152000, 192000, 2, 4}, | |
308 | }; | |
309 | ||
310 | static int cs4265_get_clk_index(int mclk, int rate) | |
311 | { | |
312 | int i; | |
313 | ||
314 | for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { | |
315 | if (clk_map_table[i].rate == rate && | |
316 | clk_map_table[i].mclk == mclk) | |
317 | return i; | |
318 | } | |
319 | return -EINVAL; | |
320 | } | |
321 | ||
322 | static int cs4265_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, | |
323 | unsigned int freq, int dir) | |
324 | { | |
325 | struct snd_soc_codec *codec = codec_dai->codec; | |
326 | struct cs4265_private *cs4265 = snd_soc_codec_get_drvdata(codec); | |
327 | int i; | |
328 | ||
329 | if (clk_id != 0) { | |
330 | dev_err(codec->dev, "Invalid clk_id %d\n", clk_id); | |
331 | return -EINVAL; | |
332 | } | |
333 | for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { | |
334 | if (clk_map_table[i].mclk == freq) { | |
335 | cs4265->sysclk = freq; | |
336 | return 0; | |
337 | } | |
338 | } | |
339 | cs4265->sysclk = 0; | |
340 | dev_err(codec->dev, "Invalid freq parameter %d\n", freq); | |
341 | return -EINVAL; | |
342 | } | |
343 | ||
344 | static int cs4265_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) | |
345 | { | |
346 | struct snd_soc_codec *codec = codec_dai->codec; | |
347 | struct cs4265_private *cs4265 = snd_soc_codec_get_drvdata(codec); | |
348 | u8 iface = 0; | |
349 | ||
350 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
351 | case SND_SOC_DAIFMT_CBM_CFM: | |
352 | snd_soc_update_bits(codec, CS4265_ADC_CTL, | |
353 | CS4265_ADC_MASTER, | |
354 | CS4265_ADC_MASTER); | |
355 | break; | |
356 | case SND_SOC_DAIFMT_CBS_CFS: | |
357 | snd_soc_update_bits(codec, CS4265_ADC_CTL, | |
358 | CS4265_ADC_MASTER, | |
359 | 0); | |
360 | break; | |
361 | default: | |
362 | return -EINVAL; | |
363 | } | |
364 | ||
365 | /* interface format */ | |
366 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
367 | case SND_SOC_DAIFMT_I2S: | |
368 | iface |= SND_SOC_DAIFMT_I2S; | |
369 | break; | |
370 | case SND_SOC_DAIFMT_RIGHT_J: | |
371 | iface |= SND_SOC_DAIFMT_RIGHT_J; | |
372 | break; | |
373 | case SND_SOC_DAIFMT_LEFT_J: | |
374 | iface |= SND_SOC_DAIFMT_LEFT_J; | |
375 | break; | |
376 | default: | |
377 | return -EINVAL; | |
378 | } | |
379 | ||
380 | cs4265->format = iface; | |
381 | return 0; | |
382 | } | |
383 | ||
384 | static int cs4265_digital_mute(struct snd_soc_dai *dai, int mute) | |
385 | { | |
386 | struct snd_soc_codec *codec = dai->codec; | |
387 | ||
388 | if (mute) { | |
389 | snd_soc_update_bits(codec, CS4265_DAC_CTL, | |
390 | CS4265_DAC_CTL_MUTE, | |
391 | CS4265_DAC_CTL_MUTE); | |
392 | snd_soc_update_bits(codec, CS4265_SPDIF_CTL2, | |
393 | CS4265_SPDIF_CTL2_MUTE, | |
394 | CS4265_SPDIF_CTL2_MUTE); | |
395 | } else { | |
396 | snd_soc_update_bits(codec, CS4265_DAC_CTL, | |
397 | CS4265_DAC_CTL_MUTE, | |
398 | 0); | |
399 | snd_soc_update_bits(codec, CS4265_SPDIF_CTL2, | |
400 | CS4265_SPDIF_CTL2_MUTE, | |
401 | 0); | |
402 | } | |
403 | return 0; | |
404 | } | |
405 | ||
406 | static int cs4265_pcm_hw_params(struct snd_pcm_substream *substream, | |
407 | struct snd_pcm_hw_params *params, | |
408 | struct snd_soc_dai *dai) | |
409 | { | |
410 | struct snd_soc_codec *codec = dai->codec; | |
411 | struct cs4265_private *cs4265 = snd_soc_codec_get_drvdata(codec); | |
412 | int index; | |
413 | ||
414 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE && | |
415 | ((cs4265->format & SND_SOC_DAIFMT_FORMAT_MASK) | |
416 | == SND_SOC_DAIFMT_RIGHT_J)) | |
417 | return -EINVAL; | |
418 | ||
419 | index = cs4265_get_clk_index(cs4265->sysclk, params_rate(params)); | |
420 | if (index >= 0) { | |
421 | snd_soc_update_bits(codec, CS4265_ADC_CTL, | |
fb18cd2a | 422 | CS4265_ADC_FM, clk_map_table[index].fm_mode << 6); |
fb6f8069 PH |
423 | snd_soc_update_bits(codec, CS4265_MCLK_FREQ, |
424 | CS4265_MCLK_FREQ_MASK, | |
fb18cd2a | 425 | clk_map_table[index].mclkdiv << 4); |
fb6f8069 PH |
426 | |
427 | } else { | |
428 | dev_err(codec->dev, "can't get correct mclk\n"); | |
429 | return -EINVAL; | |
430 | } | |
431 | ||
432 | switch (cs4265->format & SND_SOC_DAIFMT_FORMAT_MASK) { | |
433 | case SND_SOC_DAIFMT_I2S: | |
434 | snd_soc_update_bits(codec, CS4265_DAC_CTL, | |
435 | CS4265_DAC_CTL_DIF, (1 << 4)); | |
436 | snd_soc_update_bits(codec, CS4265_ADC_CTL, | |
437 | CS4265_ADC_DIF, (1 << 4)); | |
438 | snd_soc_update_bits(codec, CS4265_SPDIF_CTL2, | |
439 | CS4265_SPDIF_CTL2_DIF, (1 << 6)); | |
440 | break; | |
441 | case SND_SOC_DAIFMT_RIGHT_J: | |
12efd9f4 | 442 | if (params_width(params) == 16) { |
fb6f8069 | 443 | snd_soc_update_bits(codec, CS4265_DAC_CTL, |
bffc4496 | 444 | CS4265_DAC_CTL_DIF, (2 << 4)); |
77441825 | 445 | snd_soc_update_bits(codec, CS4265_SPDIF_CTL2, |
bffc4496 | 446 | CS4265_SPDIF_CTL2_DIF, (2 << 6)); |
fb6f8069 PH |
447 | } else { |
448 | snd_soc_update_bits(codec, CS4265_DAC_CTL, | |
bffc4496 | 449 | CS4265_DAC_CTL_DIF, (3 << 4)); |
77441825 | 450 | snd_soc_update_bits(codec, CS4265_SPDIF_CTL2, |
bffc4496 | 451 | CS4265_SPDIF_CTL2_DIF, (3 << 6)); |
fb6f8069 PH |
452 | } |
453 | break; | |
454 | case SND_SOC_DAIFMT_LEFT_J: | |
455 | snd_soc_update_bits(codec, CS4265_DAC_CTL, | |
456 | CS4265_DAC_CTL_DIF, 0); | |
457 | snd_soc_update_bits(codec, CS4265_ADC_CTL, | |
458 | CS4265_ADC_DIF, 0); | |
77441825 | 459 | snd_soc_update_bits(codec, CS4265_SPDIF_CTL2, |
bffc4496 | 460 | CS4265_SPDIF_CTL2_DIF, 0); |
fb6f8069 PH |
461 | |
462 | break; | |
463 | default: | |
464 | return -EINVAL; | |
465 | } | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static int cs4265_set_bias_level(struct snd_soc_codec *codec, | |
470 | enum snd_soc_bias_level level) | |
471 | { | |
472 | switch (level) { | |
473 | case SND_SOC_BIAS_ON: | |
474 | break; | |
475 | case SND_SOC_BIAS_PREPARE: | |
476 | snd_soc_update_bits(codec, CS4265_PWRCTL, | |
477 | CS4265_PWRCTL_PDN, 0); | |
478 | break; | |
479 | case SND_SOC_BIAS_STANDBY: | |
480 | snd_soc_update_bits(codec, CS4265_PWRCTL, | |
481 | CS4265_PWRCTL_PDN, | |
482 | CS4265_PWRCTL_PDN); | |
483 | break; | |
484 | case SND_SOC_BIAS_OFF: | |
485 | snd_soc_update_bits(codec, CS4265_PWRCTL, | |
486 | CS4265_PWRCTL_PDN, | |
487 | CS4265_PWRCTL_PDN); | |
488 | break; | |
489 | } | |
fb6f8069 PH |
490 | return 0; |
491 | } | |
492 | ||
493 | #define CS4265_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ | |
494 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \ | |
495 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \ | |
496 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000) | |
497 | ||
498 | #define CS4265_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ | |
499 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE) | |
500 | ||
501 | static const struct snd_soc_dai_ops cs4265_ops = { | |
502 | .hw_params = cs4265_pcm_hw_params, | |
503 | .digital_mute = cs4265_digital_mute, | |
504 | .set_fmt = cs4265_set_fmt, | |
505 | .set_sysclk = cs4265_set_sysclk, | |
506 | }; | |
507 | ||
508 | static struct snd_soc_dai_driver cs4265_dai[] = { | |
509 | { | |
510 | .name = "cs4265-dai1", | |
511 | .playback = { | |
512 | .stream_name = "DAI1 Playback", | |
513 | .channels_min = 1, | |
514 | .channels_max = 2, | |
515 | .rates = CS4265_RATES, | |
516 | .formats = CS4265_FORMATS, | |
517 | }, | |
518 | .capture = { | |
519 | .stream_name = "DAI1 Capture", | |
520 | .channels_min = 1, | |
521 | .channels_max = 2, | |
522 | .rates = CS4265_RATES, | |
523 | .formats = CS4265_FORMATS, | |
524 | }, | |
525 | .ops = &cs4265_ops, | |
526 | }, | |
527 | { | |
528 | .name = "cs4265-dai2", | |
529 | .playback = { | |
530 | .stream_name = "DAI2 Playback", | |
531 | .channels_min = 1, | |
532 | .channels_max = 2, | |
533 | .rates = CS4265_RATES, | |
534 | .formats = CS4265_FORMATS, | |
535 | }, | |
536 | .capture = { | |
537 | .stream_name = "DAI2 Capture", | |
538 | .channels_min = 1, | |
539 | .channels_max = 2, | |
540 | .rates = CS4265_RATES, | |
541 | .formats = CS4265_FORMATS, | |
542 | }, | |
543 | .ops = &cs4265_ops, | |
544 | }, | |
545 | }; | |
546 | ||
547 | static const struct snd_soc_codec_driver soc_codec_cs4265 = { | |
548 | .set_bias_level = cs4265_set_bias_level, | |
549 | ||
550 | .dapm_widgets = cs4265_dapm_widgets, | |
551 | .num_dapm_widgets = ARRAY_SIZE(cs4265_dapm_widgets), | |
552 | .dapm_routes = cs4265_audio_map, | |
553 | .num_dapm_routes = ARRAY_SIZE(cs4265_audio_map), | |
554 | ||
555 | .controls = cs4265_snd_controls, | |
556 | .num_controls = ARRAY_SIZE(cs4265_snd_controls), | |
557 | }; | |
558 | ||
559 | static const struct regmap_config cs4265_regmap = { | |
560 | .reg_bits = 8, | |
561 | .val_bits = 8, | |
562 | ||
563 | .max_register = CS4265_MAX_REGISTER, | |
564 | .reg_defaults = cs4265_reg_defaults, | |
565 | .num_reg_defaults = ARRAY_SIZE(cs4265_reg_defaults), | |
566 | .readable_reg = cs4265_readable_register, | |
567 | .volatile_reg = cs4265_volatile_register, | |
568 | .cache_type = REGCACHE_RBTREE, | |
569 | }; | |
570 | ||
571 | static int cs4265_i2c_probe(struct i2c_client *i2c_client, | |
572 | const struct i2c_device_id *id) | |
573 | { | |
574 | struct cs4265_private *cs4265; | |
575 | int ret = 0; | |
576 | unsigned int devid = 0; | |
577 | unsigned int reg; | |
578 | ||
579 | cs4265 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs4265_private), | |
580 | GFP_KERNEL); | |
581 | if (cs4265 == NULL) | |
582 | return -ENOMEM; | |
fb6f8069 PH |
583 | |
584 | cs4265->regmap = devm_regmap_init_i2c(i2c_client, &cs4265_regmap); | |
585 | if (IS_ERR(cs4265->regmap)) { | |
586 | ret = PTR_ERR(cs4265->regmap); | |
587 | dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); | |
588 | return ret; | |
589 | } | |
590 | ||
34d7c390 UKK |
591 | cs4265->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, |
592 | "reset", GPIOD_OUT_LOW); | |
593 | if (IS_ERR(cs4265->reset_gpio)) | |
594 | return PTR_ERR(cs4265->reset_gpio); | |
595 | ||
596 | if (cs4265->reset_gpio) { | |
fb6f8069 PH |
597 | mdelay(1); |
598 | gpiod_set_value_cansleep(cs4265->reset_gpio, 1); | |
fb6f8069 PH |
599 | } |
600 | ||
601 | i2c_set_clientdata(i2c_client, cs4265); | |
602 | ||
603 | ret = regmap_read(cs4265->regmap, CS4265_CHIP_ID, ®); | |
604 | devid = reg & CS4265_CHIP_ID_MASK; | |
605 | if (devid != CS4265_CHIP_ID_VAL) { | |
606 | ret = -ENODEV; | |
607 | dev_err(&i2c_client->dev, | |
608 | "CS4265 Device ID (%X). Expected %X\n", | |
609 | devid, CS4265_CHIP_ID); | |
610 | return ret; | |
611 | } | |
612 | dev_info(&i2c_client->dev, | |
613 | "CS4265 Version %x\n", | |
614 | reg & CS4265_REV_ID_MASK); | |
615 | ||
616 | regmap_write(cs4265->regmap, CS4265_PWRCTL, 0x0F); | |
617 | ||
618 | ret = snd_soc_register_codec(&i2c_client->dev, | |
619 | &soc_codec_cs4265, cs4265_dai, | |
620 | ARRAY_SIZE(cs4265_dai)); | |
621 | return ret; | |
622 | } | |
623 | ||
624 | static int cs4265_i2c_remove(struct i2c_client *client) | |
625 | { | |
626 | snd_soc_unregister_codec(&client->dev); | |
627 | return 0; | |
628 | } | |
629 | ||
630 | static const struct of_device_id cs4265_of_match[] = { | |
631 | { .compatible = "cirrus,cs4265", }, | |
632 | { } | |
633 | }; | |
634 | MODULE_DEVICE_TABLE(of, cs4265_of_match); | |
635 | ||
636 | static const struct i2c_device_id cs4265_id[] = { | |
637 | { "cs4265", 0 }, | |
638 | { } | |
639 | }; | |
640 | MODULE_DEVICE_TABLE(i2c, cs4265_id); | |
641 | ||
642 | static struct i2c_driver cs4265_i2c_driver = { | |
643 | .driver = { | |
644 | .name = "cs4265", | |
fb6f8069 PH |
645 | .of_match_table = cs4265_of_match, |
646 | }, | |
647 | .id_table = cs4265_id, | |
648 | .probe = cs4265_i2c_probe, | |
649 | .remove = cs4265_i2c_remove, | |
650 | }; | |
651 | ||
652 | module_i2c_driver(cs4265_i2c_driver); | |
653 | ||
654 | MODULE_DESCRIPTION("ASoC CS4265 driver"); | |
655 | MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>"); | |
656 | MODULE_LICENSE("GPL"); |