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selinux: fix overflow and 0 length allocations
[deliverable/linux.git] / sound / soc / codecs / cs42l52.c
1 /*
2 * cs42l52.c -- CS42L52 ALSA SoC audio driver
3 *
4 * Copyright 2012 CirrusLogic, Inc.
5 *
6 * Author: Georgi Vlaev <joe@nucleusys.com>
7 * Author: Brian Austin <brian.austin@cirrus.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14
15 #include <linux/module.h>
16 #include <linux/moduleparam.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/delay.h>
20 #include <linux/of_gpio.h>
21 #include <linux/pm.h>
22 #include <linux/i2c.h>
23 #include <linux/input.h>
24 #include <linux/regmap.h>
25 #include <linux/slab.h>
26 #include <linux/workqueue.h>
27 #include <linux/platform_device.h>
28 #include <sound/core.h>
29 #include <sound/pcm.h>
30 #include <sound/pcm_params.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dapm.h>
33 #include <sound/initval.h>
34 #include <sound/tlv.h>
35 #include <sound/cs42l52.h>
36 #include "cs42l52.h"
37
38 struct sp_config {
39 u8 spc, format, spfs;
40 u32 srate;
41 };
42
43 struct cs42l52_private {
44 struct regmap *regmap;
45 struct snd_soc_codec *codec;
46 struct device *dev;
47 struct sp_config config;
48 struct cs42l52_platform_data pdata;
49 u32 sysclk;
50 u8 mclksel;
51 u32 mclk;
52 u8 flags;
53 struct input_dev *beep;
54 struct work_struct beep_work;
55 int beep_rate;
56 };
57
58 static const struct reg_default cs42l52_reg_defaults[] = {
59 { CS42L52_PWRCTL1, 0x9F }, /* r02 PWRCTL 1 */
60 { CS42L52_PWRCTL2, 0x07 }, /* r03 PWRCTL 2 */
61 { CS42L52_PWRCTL3, 0xFF }, /* r04 PWRCTL 3 */
62 { CS42L52_CLK_CTL, 0xA0 }, /* r05 Clocking Ctl */
63 { CS42L52_IFACE_CTL1, 0x00 }, /* r06 Interface Ctl 1 */
64 { CS42L52_ADC_PGA_A, 0x80 }, /* r08 Input A Select */
65 { CS42L52_ADC_PGA_B, 0x80 }, /* r09 Input B Select */
66 { CS42L52_ANALOG_HPF_CTL, 0xA5 }, /* r0A Analog HPF Ctl */
67 { CS42L52_ADC_HPF_FREQ, 0x00 }, /* r0B ADC HPF Corner Freq */
68 { CS42L52_ADC_MISC_CTL, 0x00 }, /* r0C Misc. ADC Ctl */
69 { CS42L52_PB_CTL1, 0x60 }, /* r0D Playback Ctl 1 */
70 { CS42L52_MISC_CTL, 0x02 }, /* r0E Misc. Ctl */
71 { CS42L52_PB_CTL2, 0x00 }, /* r0F Playback Ctl 2 */
72 { CS42L52_MICA_CTL, 0x00 }, /* r10 MICA Amp Ctl */
73 { CS42L52_MICB_CTL, 0x00 }, /* r11 MICB Amp Ctl */
74 { CS42L52_PGAA_CTL, 0x00 }, /* r12 PGAA Vol, Misc. */
75 { CS42L52_PGAB_CTL, 0x00 }, /* r13 PGAB Vol, Misc. */
76 { CS42L52_PASSTHRUA_VOL, 0x00 }, /* r14 Bypass A Vol */
77 { CS42L52_PASSTHRUB_VOL, 0x00 }, /* r15 Bypass B Vol */
78 { CS42L52_ADCA_VOL, 0x00 }, /* r16 ADCA Volume */
79 { CS42L52_ADCB_VOL, 0x00 }, /* r17 ADCB Volume */
80 { CS42L52_ADCA_MIXER_VOL, 0x80 }, /* r18 ADCA Mixer Volume */
81 { CS42L52_ADCB_MIXER_VOL, 0x80 }, /* r19 ADCB Mixer Volume */
82 { CS42L52_PCMA_MIXER_VOL, 0x00 }, /* r1A PCMA Mixer Volume */
83 { CS42L52_PCMB_MIXER_VOL, 0x00 }, /* r1B PCMB Mixer Volume */
84 { CS42L52_BEEP_FREQ, 0x00 }, /* r1C Beep Freq on Time */
85 { CS42L52_BEEP_VOL, 0x00 }, /* r1D Beep Volume off Time */
86 { CS42L52_BEEP_TONE_CTL, 0x00 }, /* r1E Beep Tone Cfg. */
87 { CS42L52_TONE_CTL, 0x00 }, /* r1F Tone Ctl */
88 { CS42L52_MASTERA_VOL, 0x00 }, /* r20 Master A Volume */
89 { CS42L52_MASTERB_VOL, 0x00 }, /* r21 Master B Volume */
90 { CS42L52_HPA_VOL, 0x00 }, /* r22 Headphone A Volume */
91 { CS42L52_HPB_VOL, 0x00 }, /* r23 Headphone B Volume */
92 { CS42L52_SPKA_VOL, 0x00 }, /* r24 Speaker A Volume */
93 { CS42L52_SPKB_VOL, 0x00 }, /* r25 Speaker B Volume */
94 { CS42L52_ADC_PCM_MIXER, 0x00 }, /* r26 Channel Mixer and Swap */
95 { CS42L52_LIMITER_CTL1, 0x00 }, /* r27 Limit Ctl 1 Thresholds */
96 { CS42L52_LIMITER_CTL2, 0x7F }, /* r28 Limit Ctl 2 Release Rate */
97 { CS42L52_LIMITER_AT_RATE, 0xC0 }, /* r29 Limiter Attack Rate */
98 { CS42L52_ALC_CTL, 0x00 }, /* r2A ALC Ctl 1 Attack Rate */
99 { CS42L52_ALC_RATE, 0x3F }, /* r2B ALC Release Rate */
100 { CS42L52_ALC_THRESHOLD, 0x3f }, /* r2C ALC Thresholds */
101 { CS42L52_NOISE_GATE_CTL, 0x00 }, /* r2D Noise Gate Ctl */
102 { CS42L52_CLK_STATUS, 0x00 }, /* r2E Overflow and Clock Status */
103 { CS42L52_BATT_COMPEN, 0x00 }, /* r2F battery Compensation */
104 { CS42L52_BATT_LEVEL, 0x00 }, /* r30 VP Battery Level */
105 { CS42L52_SPK_STATUS, 0x00 }, /* r31 Speaker Status */
106 { CS42L52_TEM_CTL, 0x3B }, /* r32 Temp Ctl */
107 { CS42L52_THE_FOLDBACK, 0x00 }, /* r33 Foldback */
108 };
109
110 static bool cs42l52_readable_register(struct device *dev, unsigned int reg)
111 {
112 switch (reg) {
113 case CS42L52_CHIP ... CS42L52_CHARGE_PUMP:
114 return true;
115 default:
116 return false;
117 }
118 }
119
120 static bool cs42l52_volatile_register(struct device *dev, unsigned int reg)
121 {
122 switch (reg) {
123 case CS42L52_IFACE_CTL2:
124 case CS42L52_CLK_STATUS:
125 case CS42L52_BATT_LEVEL:
126 case CS42L52_SPK_STATUS:
127 case CS42L52_CHARGE_PUMP:
128 return true;
129 default:
130 return false;
131 }
132 }
133
134 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0);
135
136 static DECLARE_TLV_DB_SCALE(hpd_tlv, -9600, 50, 1);
137
138 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0);
139
140 static DECLARE_TLV_DB_SCALE(mic_tlv, 1600, 100, 0);
141
142 static DECLARE_TLV_DB_SCALE(pga_tlv, -600, 50, 0);
143
144 static DECLARE_TLV_DB_SCALE(mix_tlv, -50, 50, 0);
145
146 static DECLARE_TLV_DB_SCALE(beep_tlv, -56, 200, 0);
147
148 static const DECLARE_TLV_DB_RANGE(limiter_tlv,
149 0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0),
150 3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0)
151 );
152
153 static const char * const cs42l52_adca_text[] = {
154 "Input1A", "Input2A", "Input3A", "Input4A", "PGA Input Left"};
155
156 static const char * const cs42l52_adcb_text[] = {
157 "Input1B", "Input2B", "Input3B", "Input4B", "PGA Input Right"};
158
159 static SOC_ENUM_SINGLE_DECL(adca_enum,
160 CS42L52_ADC_PGA_A, 5, cs42l52_adca_text);
161
162 static SOC_ENUM_SINGLE_DECL(adcb_enum,
163 CS42L52_ADC_PGA_B, 5, cs42l52_adcb_text);
164
165 static const struct snd_kcontrol_new adca_mux =
166 SOC_DAPM_ENUM("Left ADC Input Capture Mux", adca_enum);
167
168 static const struct snd_kcontrol_new adcb_mux =
169 SOC_DAPM_ENUM("Right ADC Input Capture Mux", adcb_enum);
170
171 static const char * const mic_bias_level_text[] = {
172 "0.5 +VA", "0.6 +VA", "0.7 +VA",
173 "0.8 +VA", "0.83 +VA", "0.91 +VA"
174 };
175
176 static SOC_ENUM_SINGLE_DECL(mic_bias_level_enum,
177 CS42L52_IFACE_CTL2, 0, mic_bias_level_text);
178
179 static const char * const cs42l52_mic_text[] = { "MIC1", "MIC2" };
180
181 static SOC_ENUM_SINGLE_DECL(mica_enum,
182 CS42L52_MICA_CTL, 5, cs42l52_mic_text);
183
184 static SOC_ENUM_SINGLE_DECL(micb_enum,
185 CS42L52_MICB_CTL, 5, cs42l52_mic_text);
186
187 static const char * const digital_output_mux_text[] = {"ADC", "DSP"};
188
189 static SOC_ENUM_SINGLE_DECL(digital_output_mux_enum,
190 CS42L52_ADC_MISC_CTL, 6,
191 digital_output_mux_text);
192
193 static const struct snd_kcontrol_new digital_output_mux =
194 SOC_DAPM_ENUM("Digital Output Mux", digital_output_mux_enum);
195
196 static const char * const hp_gain_num_text[] = {
197 "0.3959", "0.4571", "0.5111", "0.6047",
198 "0.7099", "0.8399", "1.000", "1.1430"
199 };
200
201 static SOC_ENUM_SINGLE_DECL(hp_gain_enum,
202 CS42L52_PB_CTL1, 5,
203 hp_gain_num_text);
204
205 static const char * const beep_pitch_text[] = {
206 "C4", "C5", "D5", "E5", "F5", "G5", "A5", "B5",
207 "C6", "D6", "E6", "F6", "G6", "A6", "B6", "C7"
208 };
209
210 static SOC_ENUM_SINGLE_DECL(beep_pitch_enum,
211 CS42L52_BEEP_FREQ, 4,
212 beep_pitch_text);
213
214 static const char * const beep_ontime_text[] = {
215 "86 ms", "430 ms", "780 ms", "1.20 s", "1.50 s",
216 "1.80 s", "2.20 s", "2.50 s", "2.80 s", "3.20 s",
217 "3.50 s", "3.80 s", "4.20 s", "4.50 s", "4.80 s", "5.20 s"
218 };
219
220 static SOC_ENUM_SINGLE_DECL(beep_ontime_enum,
221 CS42L52_BEEP_FREQ, 0,
222 beep_ontime_text);
223
224 static const char * const beep_offtime_text[] = {
225 "1.23 s", "2.58 s", "3.90 s", "5.20 s",
226 "6.60 s", "8.05 s", "9.35 s", "10.80 s"
227 };
228
229 static SOC_ENUM_SINGLE_DECL(beep_offtime_enum,
230 CS42L52_BEEP_VOL, 5,
231 beep_offtime_text);
232
233 static const char * const beep_config_text[] = {
234 "Off", "Single", "Multiple", "Continuous"
235 };
236
237 static SOC_ENUM_SINGLE_DECL(beep_config_enum,
238 CS42L52_BEEP_TONE_CTL, 6,
239 beep_config_text);
240
241 static const char * const beep_bass_text[] = {
242 "50 Hz", "100 Hz", "200 Hz", "250 Hz"
243 };
244
245 static SOC_ENUM_SINGLE_DECL(beep_bass_enum,
246 CS42L52_BEEP_TONE_CTL, 1,
247 beep_bass_text);
248
249 static const char * const beep_treble_text[] = {
250 "5 kHz", "7 kHz", "10 kHz", " 15 kHz"
251 };
252
253 static SOC_ENUM_SINGLE_DECL(beep_treble_enum,
254 CS42L52_BEEP_TONE_CTL, 3,
255 beep_treble_text);
256
257 static const char * const ng_threshold_text[] = {
258 "-34dB", "-37dB", "-40dB", "-43dB",
259 "-46dB", "-52dB", "-58dB", "-64dB"
260 };
261
262 static SOC_ENUM_SINGLE_DECL(ng_threshold_enum,
263 CS42L52_NOISE_GATE_CTL, 2,
264 ng_threshold_text);
265
266 static const char * const cs42l52_ng_delay_text[] = {
267 "50ms", "100ms", "150ms", "200ms"};
268
269 static SOC_ENUM_SINGLE_DECL(ng_delay_enum,
270 CS42L52_NOISE_GATE_CTL, 0,
271 cs42l52_ng_delay_text);
272
273 static const char * const cs42l52_ng_type_text[] = {
274 "Apply Specific", "Apply All"
275 };
276
277 static SOC_ENUM_SINGLE_DECL(ng_type_enum,
278 CS42L52_NOISE_GATE_CTL, 6,
279 cs42l52_ng_type_text);
280
281 static const char * const left_swap_text[] = {
282 "Left", "LR 2", "Right"};
283
284 static const char * const right_swap_text[] = {
285 "Right", "LR 2", "Left"};
286
287 static const unsigned int swap_values[] = { 0, 1, 3 };
288
289 static const struct soc_enum adca_swap_enum =
290 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 2, 3,
291 ARRAY_SIZE(left_swap_text),
292 left_swap_text,
293 swap_values);
294
295 static const struct snd_kcontrol_new adca_mixer =
296 SOC_DAPM_ENUM("Route", adca_swap_enum);
297
298 static const struct soc_enum pcma_swap_enum =
299 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 6, 3,
300 ARRAY_SIZE(left_swap_text),
301 left_swap_text,
302 swap_values);
303
304 static const struct snd_kcontrol_new pcma_mixer =
305 SOC_DAPM_ENUM("Route", pcma_swap_enum);
306
307 static const struct soc_enum adcb_swap_enum =
308 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 0, 3,
309 ARRAY_SIZE(right_swap_text),
310 right_swap_text,
311 swap_values);
312
313 static const struct snd_kcontrol_new adcb_mixer =
314 SOC_DAPM_ENUM("Route", adcb_swap_enum);
315
316 static const struct soc_enum pcmb_swap_enum =
317 SOC_VALUE_ENUM_SINGLE(CS42L52_ADC_PCM_MIXER, 4, 3,
318 ARRAY_SIZE(right_swap_text),
319 right_swap_text,
320 swap_values);
321
322 static const struct snd_kcontrol_new pcmb_mixer =
323 SOC_DAPM_ENUM("Route", pcmb_swap_enum);
324
325
326 static const struct snd_kcontrol_new passthrul_ctl =
327 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 6, 1, 0);
328
329 static const struct snd_kcontrol_new passthrur_ctl =
330 SOC_DAPM_SINGLE("Switch", CS42L52_MISC_CTL, 7, 1, 0);
331
332 static const struct snd_kcontrol_new spkl_ctl =
333 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 0, 1, 1);
334
335 static const struct snd_kcontrol_new spkr_ctl =
336 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 2, 1, 1);
337
338 static const struct snd_kcontrol_new hpl_ctl =
339 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 4, 1, 1);
340
341 static const struct snd_kcontrol_new hpr_ctl =
342 SOC_DAPM_SINGLE("Switch", CS42L52_PWRCTL3, 6, 1, 1);
343
344 static const struct snd_kcontrol_new cs42l52_snd_controls[] = {
345
346 SOC_DOUBLE_R_SX_TLV("Master Volume", CS42L52_MASTERA_VOL,
347 CS42L52_MASTERB_VOL, 0, 0x34, 0xE4, hl_tlv),
348
349 SOC_DOUBLE_R_SX_TLV("Headphone Volume", CS42L52_HPA_VOL,
350 CS42L52_HPB_VOL, 0, 0x34, 0xC0, hpd_tlv),
351
352 SOC_ENUM("Headphone Analog Gain", hp_gain_enum),
353
354 SOC_DOUBLE_R_SX_TLV("Speaker Volume", CS42L52_SPKA_VOL,
355 CS42L52_SPKB_VOL, 0, 0x40, 0xC0, hl_tlv),
356
357 SOC_DOUBLE_R_SX_TLV("Bypass Volume", CS42L52_PASSTHRUA_VOL,
358 CS42L52_PASSTHRUB_VOL, 0, 0x88, 0x90, pga_tlv),
359
360 SOC_DOUBLE("Bypass Mute", CS42L52_MISC_CTL, 4, 5, 1, 0),
361
362 SOC_DOUBLE_R_TLV("MIC Gain Volume", CS42L52_MICA_CTL,
363 CS42L52_MICB_CTL, 0, 0x10, 0, mic_tlv),
364
365 SOC_ENUM("MIC Bias Level", mic_bias_level_enum),
366
367 SOC_DOUBLE_R_SX_TLV("ADC Volume", CS42L52_ADCA_VOL,
368 CS42L52_ADCB_VOL, 0, 0xA0, 0x78, ipd_tlv),
369 SOC_DOUBLE_R_SX_TLV("ADC Mixer Volume",
370 CS42L52_ADCA_MIXER_VOL, CS42L52_ADCB_MIXER_VOL,
371 0, 0x19, 0x7F, ipd_tlv),
372
373 SOC_DOUBLE("ADC Switch", CS42L52_ADC_MISC_CTL, 0, 1, 1, 0),
374
375 SOC_DOUBLE_R("ADC Mixer Switch", CS42L52_ADCA_MIXER_VOL,
376 CS42L52_ADCB_MIXER_VOL, 7, 1, 1),
377
378 SOC_DOUBLE_R_SX_TLV("PGA Volume", CS42L52_PGAA_CTL,
379 CS42L52_PGAB_CTL, 0, 0x28, 0x24, pga_tlv),
380
381 SOC_DOUBLE_R_SX_TLV("PCM Mixer Volume",
382 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL,
383 0, 0x19, 0x7f, mix_tlv),
384 SOC_DOUBLE_R("PCM Mixer Switch",
385 CS42L52_PCMA_MIXER_VOL, CS42L52_PCMB_MIXER_VOL, 7, 1, 1),
386
387 SOC_ENUM("Beep Config", beep_config_enum),
388 SOC_ENUM("Beep Pitch", beep_pitch_enum),
389 SOC_ENUM("Beep on Time", beep_ontime_enum),
390 SOC_ENUM("Beep off Time", beep_offtime_enum),
391 SOC_SINGLE_SX_TLV("Beep Volume", CS42L52_BEEP_VOL,
392 0, 0x07, 0x1f, beep_tlv),
393 SOC_SINGLE("Beep Mixer Switch", CS42L52_BEEP_TONE_CTL, 5, 1, 1),
394 SOC_ENUM("Beep Treble Corner Freq", beep_treble_enum),
395 SOC_ENUM("Beep Bass Corner Freq", beep_bass_enum),
396
397 SOC_SINGLE("Tone Control Switch", CS42L52_BEEP_TONE_CTL, 0, 1, 1),
398 SOC_SINGLE_TLV("Treble Gain Volume",
399 CS42L52_TONE_CTL, 4, 15, 1, hl_tlv),
400 SOC_SINGLE_TLV("Bass Gain Volume",
401 CS42L52_TONE_CTL, 0, 15, 1, hl_tlv),
402
403 /* Limiter */
404 SOC_SINGLE_TLV("Limiter Max Threshold Volume",
405 CS42L52_LIMITER_CTL1, 5, 7, 0, limiter_tlv),
406 SOC_SINGLE_TLV("Limiter Cushion Threshold Volume",
407 CS42L52_LIMITER_CTL1, 2, 7, 0, limiter_tlv),
408 SOC_SINGLE_TLV("Limiter Release Rate Volume",
409 CS42L52_LIMITER_CTL2, 0, 63, 0, limiter_tlv),
410 SOC_SINGLE_TLV("Limiter Attack Rate Volume",
411 CS42L52_LIMITER_AT_RATE, 0, 63, 0, limiter_tlv),
412
413 SOC_SINGLE("Limiter SR Switch", CS42L52_LIMITER_CTL1, 1, 1, 0),
414 SOC_SINGLE("Limiter ZC Switch", CS42L52_LIMITER_CTL1, 0, 1, 0),
415 SOC_SINGLE("Limiter Switch", CS42L52_LIMITER_CTL2, 7, 1, 0),
416
417 /* ALC */
418 SOC_SINGLE_TLV("ALC Attack Rate Volume", CS42L52_ALC_CTL,
419 0, 63, 0, limiter_tlv),
420 SOC_SINGLE_TLV("ALC Release Rate Volume", CS42L52_ALC_RATE,
421 0, 63, 0, limiter_tlv),
422 SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L52_ALC_THRESHOLD,
423 5, 7, 0, limiter_tlv),
424 SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L52_ALC_THRESHOLD,
425 2, 7, 0, limiter_tlv),
426
427 SOC_DOUBLE_R("ALC SR Capture Switch", CS42L52_PGAA_CTL,
428 CS42L52_PGAB_CTL, 7, 1, 1),
429 SOC_DOUBLE_R("ALC ZC Capture Switch", CS42L52_PGAA_CTL,
430 CS42L52_PGAB_CTL, 6, 1, 1),
431 SOC_DOUBLE("ALC Capture Switch", CS42L52_ALC_CTL, 6, 7, 1, 0),
432
433 /* Noise gate */
434 SOC_ENUM("NG Type Switch", ng_type_enum),
435 SOC_SINGLE("NG Enable Switch", CS42L52_NOISE_GATE_CTL, 6, 1, 0),
436 SOC_SINGLE("NG Boost Switch", CS42L52_NOISE_GATE_CTL, 5, 1, 1),
437 SOC_ENUM("NG Threshold", ng_threshold_enum),
438 SOC_ENUM("NG Delay", ng_delay_enum),
439
440 SOC_DOUBLE("HPF Switch", CS42L52_ANALOG_HPF_CTL, 5, 7, 1, 0),
441
442 SOC_DOUBLE("Analog SR Switch", CS42L52_ANALOG_HPF_CTL, 1, 3, 1, 1),
443 SOC_DOUBLE("Analog ZC Switch", CS42L52_ANALOG_HPF_CTL, 0, 2, 1, 1),
444 SOC_SINGLE("Digital SR Switch", CS42L52_MISC_CTL, 1, 1, 0),
445 SOC_SINGLE("Digital ZC Switch", CS42L52_MISC_CTL, 0, 1, 0),
446 SOC_SINGLE("Deemphasis Switch", CS42L52_MISC_CTL, 2, 1, 0),
447
448 SOC_SINGLE("Batt Compensation Switch", CS42L52_BATT_COMPEN, 7, 1, 0),
449 SOC_SINGLE("Batt VP Monitor Switch", CS42L52_BATT_COMPEN, 6, 1, 0),
450 SOC_SINGLE("Batt VP ref", CS42L52_BATT_COMPEN, 0, 0x0f, 0),
451
452 SOC_SINGLE("PGA AIN1L Switch", CS42L52_ADC_PGA_A, 0, 1, 0),
453 SOC_SINGLE("PGA AIN1R Switch", CS42L52_ADC_PGA_B, 0, 1, 0),
454 SOC_SINGLE("PGA AIN2L Switch", CS42L52_ADC_PGA_A, 1, 1, 0),
455 SOC_SINGLE("PGA AIN2R Switch", CS42L52_ADC_PGA_B, 1, 1, 0),
456
457 SOC_SINGLE("PGA AIN3L Switch", CS42L52_ADC_PGA_A, 2, 1, 0),
458 SOC_SINGLE("PGA AIN3R Switch", CS42L52_ADC_PGA_B, 2, 1, 0),
459
460 SOC_SINGLE("PGA AIN4L Switch", CS42L52_ADC_PGA_A, 3, 1, 0),
461 SOC_SINGLE("PGA AIN4R Switch", CS42L52_ADC_PGA_B, 3, 1, 0),
462
463 SOC_SINGLE("PGA MICA Switch", CS42L52_ADC_PGA_A, 4, 1, 0),
464 SOC_SINGLE("PGA MICB Switch", CS42L52_ADC_PGA_B, 4, 1, 0),
465
466 };
467
468 static const struct snd_kcontrol_new cs42l52_mica_controls[] = {
469 SOC_ENUM("MICA Select", mica_enum),
470 };
471
472 static const struct snd_kcontrol_new cs42l52_micb_controls[] = {
473 SOC_ENUM("MICB Select", micb_enum),
474 };
475
476 static int cs42l52_add_mic_controls(struct snd_soc_codec *codec)
477 {
478 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
479 struct cs42l52_platform_data *pdata = &cs42l52->pdata;
480
481 if (!pdata->mica_diff_cfg)
482 snd_soc_add_codec_controls(codec, cs42l52_mica_controls,
483 ARRAY_SIZE(cs42l52_mica_controls));
484
485 if (!pdata->micb_diff_cfg)
486 snd_soc_add_codec_controls(codec, cs42l52_micb_controls,
487 ARRAY_SIZE(cs42l52_micb_controls));
488
489 return 0;
490 }
491
492 static const struct snd_soc_dapm_widget cs42l52_dapm_widgets[] = {
493
494 SND_SOC_DAPM_INPUT("AIN1L"),
495 SND_SOC_DAPM_INPUT("AIN1R"),
496 SND_SOC_DAPM_INPUT("AIN2L"),
497 SND_SOC_DAPM_INPUT("AIN2R"),
498 SND_SOC_DAPM_INPUT("AIN3L"),
499 SND_SOC_DAPM_INPUT("AIN3R"),
500 SND_SOC_DAPM_INPUT("AIN4L"),
501 SND_SOC_DAPM_INPUT("AIN4R"),
502 SND_SOC_DAPM_INPUT("MICA"),
503 SND_SOC_DAPM_INPUT("MICB"),
504 SND_SOC_DAPM_SIGGEN("Beep"),
505
506 SND_SOC_DAPM_AIF_OUT("AIFOUTL", NULL, 0,
507 SND_SOC_NOPM, 0, 0),
508 SND_SOC_DAPM_AIF_OUT("AIFOUTR", NULL, 0,
509 SND_SOC_NOPM, 0, 0),
510
511 SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L52_PWRCTL1, 1, 1),
512 SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L52_PWRCTL1, 2, 1),
513 SND_SOC_DAPM_PGA("PGA Left", CS42L52_PWRCTL1, 3, 1, NULL, 0),
514 SND_SOC_DAPM_PGA("PGA Right", CS42L52_PWRCTL1, 4, 1, NULL, 0),
515
516 SND_SOC_DAPM_MUX("ADC Left Mux", SND_SOC_NOPM, 0, 0, &adca_mux),
517 SND_SOC_DAPM_MUX("ADC Right Mux", SND_SOC_NOPM, 0, 0, &adcb_mux),
518
519 SND_SOC_DAPM_MUX("ADC Left Swap", SND_SOC_NOPM,
520 0, 0, &adca_mixer),
521 SND_SOC_DAPM_MUX("ADC Right Swap", SND_SOC_NOPM,
522 0, 0, &adcb_mixer),
523
524 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM,
525 0, 0, &digital_output_mux),
526
527 SND_SOC_DAPM_PGA("PGA MICA", CS42L52_PWRCTL2, 1, 1, NULL, 0),
528 SND_SOC_DAPM_PGA("PGA MICB", CS42L52_PWRCTL2, 2, 1, NULL, 0),
529
530 SND_SOC_DAPM_SUPPLY("Mic Bias", CS42L52_PWRCTL2, 0, 1, NULL, 0),
531 SND_SOC_DAPM_SUPPLY("Charge Pump", CS42L52_PWRCTL1, 7, 1, NULL, 0),
532
533 SND_SOC_DAPM_AIF_IN("AIFINL", NULL, 0,
534 SND_SOC_NOPM, 0, 0),
535 SND_SOC_DAPM_AIF_IN("AIFINR", NULL, 0,
536 SND_SOC_NOPM, 0, 0),
537
538 SND_SOC_DAPM_DAC("DAC Left", NULL, SND_SOC_NOPM, 0, 0),
539 SND_SOC_DAPM_DAC("DAC Right", NULL, SND_SOC_NOPM, 0, 0),
540
541 SND_SOC_DAPM_SWITCH("Bypass Left", CS42L52_MISC_CTL,
542 6, 0, &passthrul_ctl),
543 SND_SOC_DAPM_SWITCH("Bypass Right", CS42L52_MISC_CTL,
544 7, 0, &passthrur_ctl),
545
546 SND_SOC_DAPM_MUX("PCM Left Swap", SND_SOC_NOPM,
547 0, 0, &pcma_mixer),
548 SND_SOC_DAPM_MUX("PCM Right Swap", SND_SOC_NOPM,
549 0, 0, &pcmb_mixer),
550
551 SND_SOC_DAPM_SWITCH("HP Left Amp", SND_SOC_NOPM, 0, 0, &hpl_ctl),
552 SND_SOC_DAPM_SWITCH("HP Right Amp", SND_SOC_NOPM, 0, 0, &hpr_ctl),
553
554 SND_SOC_DAPM_SWITCH("SPK Left Amp", SND_SOC_NOPM, 0, 0, &spkl_ctl),
555 SND_SOC_DAPM_SWITCH("SPK Right Amp", SND_SOC_NOPM, 0, 0, &spkr_ctl),
556
557 SND_SOC_DAPM_OUTPUT("HPOUTA"),
558 SND_SOC_DAPM_OUTPUT("HPOUTB"),
559 SND_SOC_DAPM_OUTPUT("SPKOUTA"),
560 SND_SOC_DAPM_OUTPUT("SPKOUTB"),
561
562 };
563
564 static const struct snd_soc_dapm_route cs42l52_audio_map[] = {
565
566 {"Capture", NULL, "AIFOUTL"},
567 {"Capture", NULL, "AIFOUTL"},
568
569 {"AIFOUTL", NULL, "Output Mux"},
570 {"AIFOUTR", NULL, "Output Mux"},
571
572 {"Output Mux", "ADC", "ADC Left"},
573 {"Output Mux", "ADC", "ADC Right"},
574
575 {"ADC Left", NULL, "Charge Pump"},
576 {"ADC Right", NULL, "Charge Pump"},
577
578 {"Charge Pump", NULL, "ADC Left Mux"},
579 {"Charge Pump", NULL, "ADC Right Mux"},
580
581 {"ADC Left Mux", "Input1A", "AIN1L"},
582 {"ADC Right Mux", "Input1B", "AIN1R"},
583 {"ADC Left Mux", "Input2A", "AIN2L"},
584 {"ADC Right Mux", "Input2B", "AIN2R"},
585 {"ADC Left Mux", "Input3A", "AIN3L"},
586 {"ADC Right Mux", "Input3B", "AIN3R"},
587 {"ADC Left Mux", "Input4A", "AIN4L"},
588 {"ADC Right Mux", "Input4B", "AIN4R"},
589 {"ADC Left Mux", "PGA Input Left", "PGA Left"},
590 {"ADC Right Mux", "PGA Input Right" , "PGA Right"},
591
592 {"PGA Left", "Switch", "AIN1L"},
593 {"PGA Right", "Switch", "AIN1R"},
594 {"PGA Left", "Switch", "AIN2L"},
595 {"PGA Right", "Switch", "AIN2R"},
596 {"PGA Left", "Switch", "AIN3L"},
597 {"PGA Right", "Switch", "AIN3R"},
598 {"PGA Left", "Switch", "AIN4L"},
599 {"PGA Right", "Switch", "AIN4R"},
600
601 {"PGA Left", "Switch", "PGA MICA"},
602 {"PGA MICA", NULL, "MICA"},
603
604 {"PGA Right", "Switch", "PGA MICB"},
605 {"PGA MICB", NULL, "MICB"},
606
607 {"HPOUTA", NULL, "HP Left Amp"},
608 {"HPOUTB", NULL, "HP Right Amp"},
609 {"HP Left Amp", NULL, "Bypass Left"},
610 {"HP Right Amp", NULL, "Bypass Right"},
611 {"Bypass Left", "Switch", "PGA Left"},
612 {"Bypass Right", "Switch", "PGA Right"},
613 {"HP Left Amp", "Switch", "DAC Left"},
614 {"HP Right Amp", "Switch", "DAC Right"},
615
616 {"SPKOUTA", NULL, "SPK Left Amp"},
617 {"SPKOUTB", NULL, "SPK Right Amp"},
618
619 {"SPK Left Amp", NULL, "Beep"},
620 {"SPK Right Amp", NULL, "Beep"},
621 {"SPK Left Amp", "Switch", "Playback"},
622 {"SPK Right Amp", "Switch", "Playback"},
623
624 {"DAC Left", NULL, "Beep"},
625 {"DAC Right", NULL, "Beep"},
626 {"DAC Left", NULL, "Playback"},
627 {"DAC Right", NULL, "Playback"},
628
629 {"Output Mux", "DSP", "Playback"},
630 {"Output Mux", "DSP", "Playback"},
631
632 {"AIFINL", NULL, "Playback"},
633 {"AIFINR", NULL, "Playback"},
634
635 };
636
637 struct cs42l52_clk_para {
638 u32 mclk;
639 u32 rate;
640 u8 speed;
641 u8 group;
642 u8 videoclk;
643 u8 ratio;
644 u8 mclkdiv2;
645 };
646
647 static const struct cs42l52_clk_para clk_map_table[] = {
648 /*8k*/
649 {12288000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
650 {18432000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
651 {12000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0},
652 {24000000, 8000, CLK_QS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1},
653 {27000000, 8000, CLK_QS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0},
654
655 /*11.025k*/
656 {11289600, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
657 {16934400, 11025, CLK_QS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
658
659 /*16k*/
660 {12288000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
661 {18432000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
662 {12000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0},
663 {24000000, 16000, CLK_HS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1},
664 {27000000, 16000, CLK_HS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 1},
665
666 /*22.05k*/
667 {11289600, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
668 {16934400, 22050, CLK_HS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
669
670 /* 32k */
671 {12288000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
672 {18432000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_128, 0},
673 {12000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 0},
674 {24000000, 32000, CLK_SS_MODE, CLK_32K, CLK_NO_27M, CLK_R_125, 1},
675 {27000000, 32000, CLK_SS_MODE, CLK_32K, CLK_27M_MCLK, CLK_R_125, 0},
676
677 /* 44.1k */
678 {11289600, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
679 {16934400, 44100, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
680
681 /* 48k */
682 {12288000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
683 {18432000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
684 {12000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0},
685 {24000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1},
686 {27000000, 48000, CLK_SS_MODE, CLK_NO_32K, CLK_27M_MCLK, CLK_R_125, 1},
687
688 /* 88.2k */
689 {11289600, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
690 {16934400, 88200, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
691
692 /* 96k */
693 {12288000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
694 {18432000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_128, 0},
695 {12000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 0},
696 {24000000, 96000, CLK_DS_MODE, CLK_NO_32K, CLK_NO_27M, CLK_R_125, 1},
697 };
698
699 static int cs42l52_get_clk(int mclk, int rate)
700 {
701 int i, ret = -EINVAL;
702 u_int mclk1, mclk2 = 0;
703
704 for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) {
705 if (clk_map_table[i].rate == rate) {
706 mclk1 = clk_map_table[i].mclk;
707 if (abs(mclk - mclk1) < abs(mclk - mclk2)) {
708 mclk2 = mclk1;
709 ret = i;
710 }
711 }
712 }
713 return ret;
714 }
715
716 static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai,
717 int clk_id, unsigned int freq, int dir)
718 {
719 struct snd_soc_codec *codec = codec_dai->codec;
720 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
721
722 if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) {
723 cs42l52->sysclk = freq;
724 } else {
725 dev_err(codec->dev, "Invalid freq parameter\n");
726 return -EINVAL;
727 }
728 return 0;
729 }
730
731 static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
732 {
733 struct snd_soc_codec *codec = codec_dai->codec;
734 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
735 u8 iface = 0;
736
737 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
738 case SND_SOC_DAIFMT_CBM_CFM:
739 iface = CS42L52_IFACE_CTL1_MASTER;
740 break;
741 case SND_SOC_DAIFMT_CBS_CFS:
742 iface = CS42L52_IFACE_CTL1_SLAVE;
743 break;
744 default:
745 return -EINVAL;
746 }
747
748 /* interface format */
749 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
750 case SND_SOC_DAIFMT_I2S:
751 iface |= CS42L52_IFACE_CTL1_ADC_FMT_I2S |
752 CS42L52_IFACE_CTL1_DAC_FMT_I2S;
753 break;
754 case SND_SOC_DAIFMT_RIGHT_J:
755 iface |= CS42L52_IFACE_CTL1_DAC_FMT_RIGHT_J;
756 break;
757 case SND_SOC_DAIFMT_LEFT_J:
758 iface |= CS42L52_IFACE_CTL1_ADC_FMT_LEFT_J |
759 CS42L52_IFACE_CTL1_DAC_FMT_LEFT_J;
760 break;
761 case SND_SOC_DAIFMT_DSP_A:
762 iface |= CS42L52_IFACE_CTL1_DSP_MODE_EN;
763 break;
764 case SND_SOC_DAIFMT_DSP_B:
765 break;
766 default:
767 return -EINVAL;
768 }
769
770 /* clock inversion */
771 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
772 case SND_SOC_DAIFMT_NB_NF:
773 break;
774 case SND_SOC_DAIFMT_IB_IF:
775 iface |= CS42L52_IFACE_CTL1_INV_SCLK;
776 break;
777 case SND_SOC_DAIFMT_IB_NF:
778 iface |= CS42L52_IFACE_CTL1_INV_SCLK;
779 break;
780 case SND_SOC_DAIFMT_NB_IF:
781 break;
782 default:
783 return -EINVAL;
784 }
785 cs42l52->config.format = iface;
786 snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format);
787
788 return 0;
789 }
790
791 static int cs42l52_digital_mute(struct snd_soc_dai *dai, int mute)
792 {
793 struct snd_soc_codec *codec = dai->codec;
794
795 if (mute)
796 snd_soc_update_bits(codec, CS42L52_PB_CTL1,
797 CS42L52_PB_CTL1_MUTE_MASK,
798 CS42L52_PB_CTL1_MUTE);
799 else
800 snd_soc_update_bits(codec, CS42L52_PB_CTL1,
801 CS42L52_PB_CTL1_MUTE_MASK,
802 CS42L52_PB_CTL1_UNMUTE);
803
804 return 0;
805 }
806
807 static int cs42l52_pcm_hw_params(struct snd_pcm_substream *substream,
808 struct snd_pcm_hw_params *params,
809 struct snd_soc_dai *dai)
810 {
811 struct snd_soc_codec *codec = dai->codec;
812 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
813 u32 clk = 0;
814 int index;
815
816 index = cs42l52_get_clk(cs42l52->sysclk, params_rate(params));
817 if (index >= 0) {
818 cs42l52->sysclk = clk_map_table[index].mclk;
819
820 clk |= (clk_map_table[index].speed << CLK_SPEED_SHIFT) |
821 (clk_map_table[index].group << CLK_32K_SR_SHIFT) |
822 (clk_map_table[index].videoclk << CLK_27M_MCLK_SHIFT) |
823 (clk_map_table[index].ratio << CLK_RATIO_SHIFT) |
824 clk_map_table[index].mclkdiv2;
825
826 snd_soc_write(codec, CS42L52_CLK_CTL, clk);
827 } else {
828 dev_err(codec->dev, "can't get correct mclk\n");
829 return -EINVAL;
830 }
831
832 return 0;
833 }
834
835 static int cs42l52_set_bias_level(struct snd_soc_codec *codec,
836 enum snd_soc_bias_level level)
837 {
838 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
839
840 switch (level) {
841 case SND_SOC_BIAS_ON:
842 break;
843 case SND_SOC_BIAS_PREPARE:
844 snd_soc_update_bits(codec, CS42L52_PWRCTL1,
845 CS42L52_PWRCTL1_PDN_CODEC, 0);
846 break;
847 case SND_SOC_BIAS_STANDBY:
848 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
849 regcache_cache_only(cs42l52->regmap, false);
850 regcache_sync(cs42l52->regmap);
851 }
852 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL);
853 break;
854 case SND_SOC_BIAS_OFF:
855 snd_soc_write(codec, CS42L52_PWRCTL1, CS42L52_PWRCTL1_PDN_ALL);
856 regcache_cache_only(cs42l52->regmap, true);
857 break;
858 }
859
860 return 0;
861 }
862
863 #define CS42L52_RATES (SNDRV_PCM_RATE_8000_96000)
864
865 #define CS42L52_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \
866 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_U18_3LE | \
867 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \
868 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE)
869
870 static const struct snd_soc_dai_ops cs42l52_ops = {
871 .hw_params = cs42l52_pcm_hw_params,
872 .digital_mute = cs42l52_digital_mute,
873 .set_fmt = cs42l52_set_fmt,
874 .set_sysclk = cs42l52_set_sysclk,
875 };
876
877 static struct snd_soc_dai_driver cs42l52_dai = {
878 .name = "cs42l52",
879 .playback = {
880 .stream_name = "Playback",
881 .channels_min = 1,
882 .channels_max = 2,
883 .rates = CS42L52_RATES,
884 .formats = CS42L52_FORMATS,
885 },
886 .capture = {
887 .stream_name = "Capture",
888 .channels_min = 1,
889 .channels_max = 2,
890 .rates = CS42L52_RATES,
891 .formats = CS42L52_FORMATS,
892 },
893 .ops = &cs42l52_ops,
894 };
895
896 static int beep_rates[] = {
897 261, 522, 585, 667, 706, 774, 889, 1000,
898 1043, 1200, 1333, 1412, 1600, 1714, 2000, 2182
899 };
900
901 static void cs42l52_beep_work(struct work_struct *work)
902 {
903 struct cs42l52_private *cs42l52 =
904 container_of(work, struct cs42l52_private, beep_work);
905 struct snd_soc_codec *codec = cs42l52->codec;
906 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
907 int i;
908 int val = 0;
909 int best = 0;
910
911 if (cs42l52->beep_rate) {
912 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) {
913 if (abs(cs42l52->beep_rate - beep_rates[i]) <
914 abs(cs42l52->beep_rate - beep_rates[best]))
915 best = i;
916 }
917
918 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n",
919 beep_rates[best], cs42l52->beep_rate);
920
921 val = (best << CS42L52_BEEP_RATE_SHIFT);
922
923 snd_soc_dapm_enable_pin(dapm, "Beep");
924 } else {
925 dev_dbg(codec->dev, "Disabling beep\n");
926 snd_soc_dapm_disable_pin(dapm, "Beep");
927 }
928
929 snd_soc_update_bits(codec, CS42L52_BEEP_FREQ,
930 CS42L52_BEEP_RATE_MASK, val);
931
932 snd_soc_dapm_sync(dapm);
933 }
934
935 /* For usability define a way of injecting beep events for the device -
936 * many systems will not have a keyboard.
937 */
938 static int cs42l52_beep_event(struct input_dev *dev, unsigned int type,
939 unsigned int code, int hz)
940 {
941 struct snd_soc_codec *codec = input_get_drvdata(dev);
942 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
943
944 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz);
945
946 switch (code) {
947 case SND_BELL:
948 if (hz)
949 hz = 261;
950 case SND_TONE:
951 break;
952 default:
953 return -1;
954 }
955
956 /* Kick the beep from a workqueue */
957 cs42l52->beep_rate = hz;
958 schedule_work(&cs42l52->beep_work);
959 return 0;
960 }
961
962 static ssize_t cs42l52_beep_set(struct device *dev,
963 struct device_attribute *attr,
964 const char *buf, size_t count)
965 {
966 struct cs42l52_private *cs42l52 = dev_get_drvdata(dev);
967 long int time;
968 int ret;
969
970 ret = kstrtol(buf, 10, &time);
971 if (ret != 0)
972 return ret;
973
974 input_event(cs42l52->beep, EV_SND, SND_TONE, time);
975
976 return count;
977 }
978
979 static DEVICE_ATTR(beep, 0200, NULL, cs42l52_beep_set);
980
981 static void cs42l52_init_beep(struct snd_soc_codec *codec)
982 {
983 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
984 int ret;
985
986 cs42l52->beep = devm_input_allocate_device(codec->dev);
987 if (!cs42l52->beep) {
988 dev_err(codec->dev, "Failed to allocate beep device\n");
989 return;
990 }
991
992 INIT_WORK(&cs42l52->beep_work, cs42l52_beep_work);
993 cs42l52->beep_rate = 0;
994
995 cs42l52->beep->name = "CS42L52 Beep Generator";
996 cs42l52->beep->phys = dev_name(codec->dev);
997 cs42l52->beep->id.bustype = BUS_I2C;
998
999 cs42l52->beep->evbit[0] = BIT_MASK(EV_SND);
1000 cs42l52->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
1001 cs42l52->beep->event = cs42l52_beep_event;
1002 cs42l52->beep->dev.parent = codec->dev;
1003 input_set_drvdata(cs42l52->beep, codec);
1004
1005 ret = input_register_device(cs42l52->beep);
1006 if (ret != 0) {
1007 cs42l52->beep = NULL;
1008 dev_err(codec->dev, "Failed to register beep device\n");
1009 }
1010
1011 ret = device_create_file(codec->dev, &dev_attr_beep);
1012 if (ret != 0) {
1013 dev_err(codec->dev, "Failed to create keyclick file: %d\n",
1014 ret);
1015 }
1016 }
1017
1018 static void cs42l52_free_beep(struct snd_soc_codec *codec)
1019 {
1020 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
1021
1022 device_remove_file(codec->dev, &dev_attr_beep);
1023 cancel_work_sync(&cs42l52->beep_work);
1024 cs42l52->beep = NULL;
1025
1026 snd_soc_update_bits(codec, CS42L52_BEEP_TONE_CTL,
1027 CS42L52_BEEP_EN_MASK, 0);
1028 }
1029
1030 static int cs42l52_probe(struct snd_soc_codec *codec)
1031 {
1032 struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec);
1033
1034 regcache_cache_only(cs42l52->regmap, true);
1035
1036 cs42l52_add_mic_controls(codec);
1037
1038 cs42l52_init_beep(codec);
1039
1040 cs42l52->sysclk = CS42L52_DEFAULT_CLK;
1041 cs42l52->config.format = CS42L52_DEFAULT_FORMAT;
1042
1043 return 0;
1044 }
1045
1046 static int cs42l52_remove(struct snd_soc_codec *codec)
1047 {
1048 cs42l52_free_beep(codec);
1049
1050 return 0;
1051 }
1052
1053 static const struct snd_soc_codec_driver soc_codec_dev_cs42l52 = {
1054 .probe = cs42l52_probe,
1055 .remove = cs42l52_remove,
1056 .set_bias_level = cs42l52_set_bias_level,
1057 .suspend_bias_off = true,
1058
1059 .dapm_widgets = cs42l52_dapm_widgets,
1060 .num_dapm_widgets = ARRAY_SIZE(cs42l52_dapm_widgets),
1061 .dapm_routes = cs42l52_audio_map,
1062 .num_dapm_routes = ARRAY_SIZE(cs42l52_audio_map),
1063
1064 .controls = cs42l52_snd_controls,
1065 .num_controls = ARRAY_SIZE(cs42l52_snd_controls),
1066 };
1067
1068 /* Current and threshold powerup sequence Pg37 */
1069 static const struct reg_sequence cs42l52_threshold_patch[] = {
1070
1071 { 0x00, 0x99 },
1072 { 0x3E, 0xBA },
1073 { 0x47, 0x80 },
1074 { 0x32, 0xBB },
1075 { 0x32, 0x3B },
1076 { 0x00, 0x00 },
1077
1078 };
1079
1080 static const struct regmap_config cs42l52_regmap = {
1081 .reg_bits = 8,
1082 .val_bits = 8,
1083
1084 .max_register = CS42L52_MAX_REGISTER,
1085 .reg_defaults = cs42l52_reg_defaults,
1086 .num_reg_defaults = ARRAY_SIZE(cs42l52_reg_defaults),
1087 .readable_reg = cs42l52_readable_register,
1088 .volatile_reg = cs42l52_volatile_register,
1089 .cache_type = REGCACHE_RBTREE,
1090 };
1091
1092 static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
1093 const struct i2c_device_id *id)
1094 {
1095 struct cs42l52_private *cs42l52;
1096 struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
1097 int ret;
1098 unsigned int devid = 0;
1099 unsigned int reg;
1100 u32 val32;
1101
1102 cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private),
1103 GFP_KERNEL);
1104 if (cs42l52 == NULL)
1105 return -ENOMEM;
1106 cs42l52->dev = &i2c_client->dev;
1107
1108 cs42l52->regmap = devm_regmap_init_i2c(i2c_client, &cs42l52_regmap);
1109 if (IS_ERR(cs42l52->regmap)) {
1110 ret = PTR_ERR(cs42l52->regmap);
1111 dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
1112 return ret;
1113 }
1114 if (pdata) {
1115 cs42l52->pdata = *pdata;
1116 } else {
1117 pdata = devm_kzalloc(&i2c_client->dev,
1118 sizeof(struct cs42l52_platform_data),
1119 GFP_KERNEL);
1120 if (!pdata) {
1121 dev_err(&i2c_client->dev, "could not allocate pdata\n");
1122 return -ENOMEM;
1123 }
1124 if (i2c_client->dev.of_node) {
1125 if (of_property_read_bool(i2c_client->dev.of_node,
1126 "cirrus,mica-differential-cfg"))
1127 pdata->mica_diff_cfg = true;
1128
1129 if (of_property_read_bool(i2c_client->dev.of_node,
1130 "cirrus,micb-differential-cfg"))
1131 pdata->micb_diff_cfg = true;
1132
1133 if (of_property_read_u32(i2c_client->dev.of_node,
1134 "cirrus,micbias-lvl", &val32) >= 0)
1135 pdata->micbias_lvl = val32;
1136
1137 if (of_property_read_u32(i2c_client->dev.of_node,
1138 "cirrus,chgfreq-divisor", &val32) >= 0)
1139 pdata->chgfreq = val32;
1140
1141 pdata->reset_gpio =
1142 of_get_named_gpio(i2c_client->dev.of_node,
1143 "cirrus,reset-gpio", 0);
1144 }
1145 cs42l52->pdata = *pdata;
1146 }
1147
1148 if (cs42l52->pdata.reset_gpio) {
1149 ret = devm_gpio_request_one(&i2c_client->dev,
1150 cs42l52->pdata.reset_gpio,
1151 GPIOF_OUT_INIT_HIGH,
1152 "CS42L52 /RST");
1153 if (ret < 0) {
1154 dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
1155 cs42l52->pdata.reset_gpio, ret);
1156 return ret;
1157 }
1158 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0);
1159 gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1);
1160 }
1161
1162 i2c_set_clientdata(i2c_client, cs42l52);
1163
1164 ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch,
1165 ARRAY_SIZE(cs42l52_threshold_patch));
1166 if (ret != 0)
1167 dev_warn(cs42l52->dev, "Failed to apply regmap patch: %d\n",
1168 ret);
1169
1170 ret = regmap_read(cs42l52->regmap, CS42L52_CHIP, &reg);
1171 devid = reg & CS42L52_CHIP_ID_MASK;
1172 if (devid != CS42L52_CHIP_ID) {
1173 ret = -ENODEV;
1174 dev_err(&i2c_client->dev,
1175 "CS42L52 Device ID (%X). Expected %X\n",
1176 devid, CS42L52_CHIP_ID);
1177 return ret;
1178 }
1179
1180 dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n",
1181 reg & CS42L52_CHIP_REV_MASK);
1182
1183 /* Set Platform Data */
1184 if (cs42l52->pdata.mica_diff_cfg)
1185 regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL,
1186 CS42L52_MIC_CTL_TYPE_MASK,
1187 cs42l52->pdata.mica_diff_cfg <<
1188 CS42L52_MIC_CTL_TYPE_SHIFT);
1189
1190 if (cs42l52->pdata.micb_diff_cfg)
1191 regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL,
1192 CS42L52_MIC_CTL_TYPE_MASK,
1193 cs42l52->pdata.micb_diff_cfg <<
1194 CS42L52_MIC_CTL_TYPE_SHIFT);
1195
1196 if (cs42l52->pdata.chgfreq)
1197 regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP,
1198 CS42L52_CHARGE_PUMP_MASK,
1199 cs42l52->pdata.chgfreq <<
1200 CS42L52_CHARGE_PUMP_SHIFT);
1201
1202 if (cs42l52->pdata.micbias_lvl)
1203 regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2,
1204 CS42L52_IFACE_CTL2_BIAS_LVL,
1205 cs42l52->pdata.micbias_lvl);
1206
1207 ret = snd_soc_register_codec(&i2c_client->dev,
1208 &soc_codec_dev_cs42l52, &cs42l52_dai, 1);
1209 if (ret < 0)
1210 return ret;
1211 return 0;
1212 }
1213
1214 static int cs42l52_i2c_remove(struct i2c_client *client)
1215 {
1216 snd_soc_unregister_codec(&client->dev);
1217 return 0;
1218 }
1219
1220 static const struct of_device_id cs42l52_of_match[] = {
1221 { .compatible = "cirrus,cs42l52", },
1222 {},
1223 };
1224 MODULE_DEVICE_TABLE(of, cs42l52_of_match);
1225
1226
1227 static const struct i2c_device_id cs42l52_id[] = {
1228 { "cs42l52", 0 },
1229 { }
1230 };
1231 MODULE_DEVICE_TABLE(i2c, cs42l52_id);
1232
1233 static struct i2c_driver cs42l52_i2c_driver = {
1234 .driver = {
1235 .name = "cs42l52",
1236 .of_match_table = cs42l52_of_match,
1237 },
1238 .id_table = cs42l52_id,
1239 .probe = cs42l52_i2c_probe,
1240 .remove = cs42l52_i2c_remove,
1241 };
1242
1243 module_i2c_driver(cs42l52_i2c_driver);
1244
1245 MODULE_DESCRIPTION("ASoC CS42L52 driver");
1246 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>");
1247 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
1248 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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