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1// SPDX-License-Identifier: GPL-2.0-or-later
2//
3// File: sound/soc/codecs/ssm2602.c
4// Author: Cliff Cai <Cliff.Cai@analog.com>
5//
6// Created: Tue June 06 2008
7// Description: Driver for ssm2602 sound chip
8//
9// Modified:
10// Copyright 2008 Analog Devices Inc.
11//
12// Bugs: Enter bugs at http://blackfin.uclinux.org/
13
14#include <linux/delay.h>
15#include <linux/module.h>
16#include <linux/regmap.h>
17#include <linux/slab.h>
18
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/tlv.h>
23
24#include "ssm2602.h"
25
26/* codec private data */
27struct ssm2602_priv {
28 unsigned int sysclk;
29 const struct snd_pcm_hw_constraint_list *sysclk_constraints;
30
31 struct regmap *regmap;
32
33 enum ssm2602_type type;
34 unsigned int clk_out_pwr;
35};
36
37/*
38 * ssm2602 register cache
39 * We can't read the ssm2602 register space when we are
40 * using 2 wire for device control, so we cache them instead.
41 * There is no point in caching the reset register
42 */
43static const struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
44 { .reg = 0x00, .def = 0x0097 },
45 { .reg = 0x01, .def = 0x0097 },
46 { .reg = 0x02, .def = 0x0079 },
47 { .reg = 0x03, .def = 0x0079 },
48 { .reg = 0x04, .def = 0x000a },
49 { .reg = 0x05, .def = 0x0008 },
50 { .reg = 0x06, .def = 0x009f },
51 { .reg = 0x07, .def = 0x000a },
52 { .reg = 0x08, .def = 0x0000 },
53 { .reg = 0x09, .def = 0x0000 }
54};
55
56/*
57 * ssm2602 register patch
58 * Workaround for playback distortions after power up: activates digital
59 * core, and then powers on output, DAC, and whole chip at the same time
60 */
61
62static const struct reg_sequence ssm2602_patch[] = {
63 { SSM2602_ACTIVE, 0x01 },
64 { SSM2602_PWR, 0x07 },
65 { SSM2602_RESET, 0x00 },
66};
67
68
69/*Appending several "None"s just for OSS mixer use*/
70static const char *ssm2602_input_select[] = {
71 "Line", "Mic",
72};
73
74static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
75
76static const struct soc_enum ssm2602_enum[] = {
77 SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
78 ssm2602_input_select),
79 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
80 ssm2602_deemph),
81};
82
83static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
84 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
85 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
86);
87
88static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
89static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
90
91static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
92SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
93 ssm260x_inpga_tlv),
94SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
95
96SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
97SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
98
99SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
100};
101
102static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
103SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
104 0, 127, 0, ssm260x_outmix_tlv),
105SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
106 7, 1, 0),
107SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
108 ssm260x_sidetone_tlv),
109
110SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
111SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
112};
113
114/* Output Mixer */
115static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
116SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
117SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
118SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
119};
120
121static const struct snd_kcontrol_new mic_ctl =
122 SOC_DAPM_SINGLE("Switch", SSM2602_APANA, 1, 1, 1);
123
124/* Input mux */
125static const struct snd_kcontrol_new ssm2602_input_mux_controls =
126SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
127
128static int ssm2602_mic_switch_event(struct snd_soc_dapm_widget *w,
129 struct snd_kcontrol *kcontrol, int event)
130{
131 /*
132 * According to the ssm2603 data sheet (control register sequencing),
133 * the digital core should be activated only after all necessary bits
134 * in the power register are enabled, and a delay determined by the
135 * decoupling capacitor on the VMID pin has passed. If the digital core
136 * is activated too early, or even before the ADC is powered up, audible
137 * artifacts appear at the beginning and end of the recorded signal.
138 *
139 * In practice, audible artifacts disappear well over 500 ms.
140 */
141 msleep(500);
142
143 return 0;
144}
145
146static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
147SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
148SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
149SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
150
151SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
152
153SND_SOC_DAPM_OUTPUT("LOUT"),
154SND_SOC_DAPM_OUTPUT("ROUT"),
155SND_SOC_DAPM_INPUT("RLINEIN"),
156SND_SOC_DAPM_INPUT("LLINEIN"),
157};
158
159static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
160SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
161 ssm260x_output_mixer_controls,
162 ARRAY_SIZE(ssm260x_output_mixer_controls)),
163
164SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
165SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
166
167SND_SOC_DAPM_SWITCH_E("Mic Switch", SSM2602_APANA, 1, 1, &mic_ctl,
168 ssm2602_mic_switch_event, SND_SOC_DAPM_PRE_PMU),
169
170SND_SOC_DAPM_OUTPUT("LHPOUT"),
171SND_SOC_DAPM_OUTPUT("RHPOUT"),
172SND_SOC_DAPM_INPUT("MICIN"),
173};
174
175static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
176SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
177 ssm260x_output_mixer_controls,
178 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
179};
180
181static const struct snd_soc_dapm_route ssm260x_routes[] = {
182 {"DAC", NULL, "Digital Core Power"},
183 {"ADC", NULL, "Digital Core Power"},
184
185 {"Output Mixer", "Line Bypass Switch", "Line Input"},
186 {"Output Mixer", "HiFi Playback Switch", "DAC"},
187
188 {"ROUT", NULL, "Output Mixer"},
189 {"LOUT", NULL, "Output Mixer"},
190
191 {"Line Input", NULL, "LLINEIN"},
192 {"Line Input", NULL, "RLINEIN"},
193};
194
195static const struct snd_soc_dapm_route ssm2602_routes[] = {
196 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
197
198 {"RHPOUT", NULL, "Output Mixer"},
199 {"LHPOUT", NULL, "Output Mixer"},
200
201 {"Input Mux", "Line", "Line Input"},
202 {"Input Mux", "Mic", "Mic Switch"},
203 {"ADC", NULL, "Input Mux"},
204
205 {"Mic Switch", NULL, "Mic Bias"},
206
207 {"Mic Bias", NULL, "MICIN"},
208};
209
210static const struct snd_soc_dapm_route ssm2604_routes[] = {
211 {"ADC", NULL, "Line Input"},
212};
213
214static const unsigned int ssm2602_rates_12288000[] = {
215 8000, 16000, 32000, 48000, 96000,
216};
217
218static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
219 .list = ssm2602_rates_12288000,
220 .count = ARRAY_SIZE(ssm2602_rates_12288000),
221};
222
223static const unsigned int ssm2602_rates_11289600[] = {
224 8000, 11025, 22050, 44100, 88200,
225};
226
227static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
228 .list = ssm2602_rates_11289600,
229 .count = ARRAY_SIZE(ssm2602_rates_11289600),
230};
231
232struct ssm2602_coeff {
233 u32 mclk;
234 u32 rate;
235 u8 srate;
236};
237
238#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
239
240/* codec mclk clock coefficients */
241static const struct ssm2602_coeff ssm2602_coeff_table[] = {
242 /* 48k */
243 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
244 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
245 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
246
247 /* 32k */
248 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
249 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
250 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
251
252 /* 16k */
253 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
254 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
255 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
256
257 /* 8k */
258 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
259 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
260 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
261 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
262 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
263
264 /* 96k */
265 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
266 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
267 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
268
269 /* 11.025k */
270 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
271 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
272 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
273
274 /* 22.05k */
275 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
276 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
277 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
278
279 /* 44.1k */
280 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
281 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
282 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
283
284 /* 88.2k */
285 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
286 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
287 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
288};
289
290static inline int ssm2602_get_coeff(int mclk, int rate)
291{
292 int i;
293
294 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
295 if (ssm2602_coeff_table[i].rate == rate) {
296 if (ssm2602_coeff_table[i].mclk == mclk)
297 return ssm2602_coeff_table[i].srate;
298 if (ssm2602_coeff_table[i].mclk == mclk / 2)
299 return ssm2602_coeff_table[i].srate | SRATE_CORECLK_DIV2;
300 }
301 }
302 return -EINVAL;
303}
304
305static int ssm2602_hw_params(struct snd_pcm_substream *substream,
306 struct snd_pcm_hw_params *params,
307 struct snd_soc_dai *dai)
308{
309 struct snd_soc_component *component = dai->component;
310 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
311 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
312 unsigned int iface;
313
314 if (srate < 0)
315 return srate;
316
317 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
318
319 /* bit size */
320 switch (params_width(params)) {
321 case 16:
322 iface = 0x0;
323 break;
324 case 20:
325 iface = 0x4;
326 break;
327 case 24:
328 iface = 0x8;
329 break;
330 case 32:
331 iface = 0xc;
332 break;
333 default:
334 return -EINVAL;
335 }
336 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
337 IFACE_AUDIO_DATA_LEN, iface);
338 return 0;
339}
340
341static int ssm2602_startup(struct snd_pcm_substream *substream,
342 struct snd_soc_dai *dai)
343{
344 struct snd_soc_component *component = dai->component;
345 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
346
347 if (ssm2602->sysclk_constraints) {
348 snd_pcm_hw_constraint_list(substream->runtime, 0,
349 SNDRV_PCM_HW_PARAM_RATE,
350 ssm2602->sysclk_constraints);
351 }
352
353 return 0;
354}
355
356static int ssm2602_mute(struct snd_soc_dai *dai, int mute, int direction)
357{
358 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(dai->component);
359
360 if (mute)
361 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
362 APDIGI_ENABLE_DAC_MUTE,
363 APDIGI_ENABLE_DAC_MUTE);
364 else
365 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
366 APDIGI_ENABLE_DAC_MUTE, 0);
367 return 0;
368}
369
370static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
371 int clk_id, unsigned int freq, int dir)
372{
373 struct snd_soc_component *component = codec_dai->component;
374 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
375
376 if (dir == SND_SOC_CLOCK_IN) {
377 if (clk_id != SSM2602_SYSCLK)
378 return -EINVAL;
379
380 switch (freq) {
381 case 12288000:
382 case 18432000:
383 case 24576000:
384 case 36864000:
385 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
386 break;
387 case 11289600:
388 case 16934400:
389 case 22579200:
390 case 33868800:
391 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
392 break;
393 case 12000000:
394 case 24000000:
395 ssm2602->sysclk_constraints = NULL;
396 break;
397 default:
398 return -EINVAL;
399 }
400
401 ssm2602->sysclk = freq;
402 } else {
403 unsigned int mask;
404
405 switch (clk_id) {
406 case SSM2602_CLK_CLKOUT:
407 mask = PWR_CLK_OUT_PDN;
408 break;
409 case SSM2602_CLK_XTO:
410 mask = PWR_OSC_PDN;
411 break;
412 default:
413 return -EINVAL;
414 }
415
416 if (freq == 0)
417 ssm2602->clk_out_pwr |= mask;
418 else
419 ssm2602->clk_out_pwr &= ~mask;
420
421 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
422 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
423 }
424
425 return 0;
426}
427
428static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
429 unsigned int fmt)
430{
431 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(codec_dai->component);
432 unsigned int iface = 0;
433
434 /* set master/slave audio interface */
435 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
436 case SND_SOC_DAIFMT_CBP_CFP:
437 iface |= 0x0040;
438 break;
439 case SND_SOC_DAIFMT_CBC_CFC:
440 break;
441 default:
442 return -EINVAL;
443 }
444
445 /* interface format */
446 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
447 case SND_SOC_DAIFMT_I2S:
448 iface |= 0x0002;
449 break;
450 case SND_SOC_DAIFMT_RIGHT_J:
451 break;
452 case SND_SOC_DAIFMT_LEFT_J:
453 iface |= 0x0001;
454 break;
455 case SND_SOC_DAIFMT_DSP_A:
456 iface |= 0x0013;
457 break;
458 case SND_SOC_DAIFMT_DSP_B:
459 iface |= 0x0003;
460 break;
461 default:
462 return -EINVAL;
463 }
464
465 /* clock inversion */
466 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
467 case SND_SOC_DAIFMT_NB_NF:
468 break;
469 case SND_SOC_DAIFMT_IB_IF:
470 iface |= 0x0090;
471 break;
472 case SND_SOC_DAIFMT_IB_NF:
473 iface |= 0x0080;
474 break;
475 case SND_SOC_DAIFMT_NB_IF:
476 iface |= 0x0010;
477 break;
478 default:
479 return -EINVAL;
480 }
481
482 /* set iface */
483 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
484 return 0;
485}
486
487static int ssm2602_set_bias_level(struct snd_soc_component *component,
488 enum snd_soc_bias_level level)
489{
490 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
491
492 switch (level) {
493 case SND_SOC_BIAS_ON:
494 /* vref/mid on, osc and clkout on if enabled */
495 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
496 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
497 ssm2602->clk_out_pwr);
498 break;
499 case SND_SOC_BIAS_PREPARE:
500 break;
501 case SND_SOC_BIAS_STANDBY:
502 /* everything off except vref/vmid, */
503 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
504 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
505 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
506 break;
507 case SND_SOC_BIAS_OFF:
508 /* everything off */
509 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
510 PWR_POWER_OFF, PWR_POWER_OFF);
511 break;
512
513 }
514 return 0;
515}
516
517#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
518 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
519 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
520 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
521 SNDRV_PCM_RATE_96000)
522
523#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
524 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
525
526static const struct snd_soc_dai_ops ssm2602_dai_ops = {
527 .startup = ssm2602_startup,
528 .hw_params = ssm2602_hw_params,
529 .mute_stream = ssm2602_mute,
530 .set_sysclk = ssm2602_set_dai_sysclk,
531 .set_fmt = ssm2602_set_dai_fmt,
532 .no_capture_mute = 1,
533};
534
535static struct snd_soc_dai_driver ssm2602_dai = {
536 .name = "ssm2602-hifi",
537 .playback = {
538 .stream_name = "Playback",
539 .channels_min = 2,
540 .channels_max = 2,
541 .rates = SSM2602_RATES,
542 .formats = SSM2602_FORMATS,},
543 .capture = {
544 .stream_name = "Capture",
545 .channels_min = 2,
546 .channels_max = 2,
547 .rates = SSM2602_RATES,
548 .formats = SSM2602_FORMATS,},
549 .ops = &ssm2602_dai_ops,
550 .symmetric_rate = 1,
551 .symmetric_sample_bits = 1,
552};
553
554static int ssm2602_resume(struct snd_soc_component *component)
555{
556 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
557
558 regcache_sync(ssm2602->regmap);
559
560 return 0;
561}
562
563static int ssm2602_component_probe(struct snd_soc_component *component)
564{
565 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
566 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
567 int ret;
568
569 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
570 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
571 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
572 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
573
574 ret = snd_soc_add_component_controls(component, ssm2602_snd_controls,
575 ARRAY_SIZE(ssm2602_snd_controls));
576 if (ret)
577 return ret;
578
579 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
580 ARRAY_SIZE(ssm2602_dapm_widgets));
581 if (ret)
582 return ret;
583
584 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
585 ARRAY_SIZE(ssm2602_routes));
586}
587
588static int ssm2604_component_probe(struct snd_soc_component *component)
589{
590 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
591 int ret;
592
593 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
594 ARRAY_SIZE(ssm2604_dapm_widgets));
595 if (ret)
596 return ret;
597
598 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
599 ARRAY_SIZE(ssm2604_routes));
600}
601
602static int ssm260x_component_probe(struct snd_soc_component *component)
603{
604 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
605 int ret;
606
607 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
608 if (ret < 0) {
609 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
610 return ret;
611 }
612
613 regmap_register_patch(ssm2602->regmap, ssm2602_patch,
614 ARRAY_SIZE(ssm2602_patch));
615
616 /* set the update bits */
617 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
618 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
619 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
620 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
621 /*select Line in as default input*/
622 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
623 APANA_ENABLE_MIC_BOOST);
624
625 switch (ssm2602->type) {
626 case SSM2602:
627 ret = ssm2602_component_probe(component);
628 break;
629 case SSM2604:
630 ret = ssm2604_component_probe(component);
631 break;
632 }
633
634 return ret;
635}
636
637static const struct snd_soc_component_driver soc_component_dev_ssm2602 = {
638 .probe = ssm260x_component_probe,
639 .resume = ssm2602_resume,
640 .set_bias_level = ssm2602_set_bias_level,
641 .controls = ssm260x_snd_controls,
642 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
643 .dapm_widgets = ssm260x_dapm_widgets,
644 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
645 .dapm_routes = ssm260x_routes,
646 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
647 .suspend_bias_off = 1,
648 .idle_bias_on = 1,
649 .use_pmdown_time = 1,
650 .endianness = 1,
651};
652
653static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
654{
655 return reg == SSM2602_RESET;
656}
657
658const struct regmap_config ssm2602_regmap_config = {
659 .val_bits = 9,
660 .reg_bits = 7,
661
662 .max_register = SSM2602_RESET,
663 .volatile_reg = ssm2602_register_volatile,
664
665 .cache_type = REGCACHE_RBTREE,
666 .reg_defaults = ssm2602_reg,
667 .num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
668};
669EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
670
671int ssm2602_probe(struct device *dev, enum ssm2602_type type,
672 struct regmap *regmap)
673{
674 struct ssm2602_priv *ssm2602;
675
676 if (IS_ERR(regmap))
677 return PTR_ERR(regmap);
678
679 ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
680 if (ssm2602 == NULL)
681 return -ENOMEM;
682
683 dev_set_drvdata(dev, ssm2602);
684 ssm2602->type = type;
685 ssm2602->regmap = regmap;
686
687 return devm_snd_soc_register_component(dev, &soc_component_dev_ssm2602,
688 &ssm2602_dai, 1);
689}
690EXPORT_SYMBOL_GPL(ssm2602_probe);
691
692MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
693MODULE_AUTHOR("Cliff Cai");
694MODULE_LICENSE("GPL");
1/*
2 * File: sound/soc/codecs/ssm2602.c
3 * Author: Cliff Cai <Cliff.Cai@analog.com>
4 *
5 * Created: Tue June 06 2008
6 * Description: Driver for ssm2602 sound chip
7 *
8 * Modified:
9 * Copyright 2008 Analog Devices Inc.
10 *
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see the file COPYING, or write
25 * to the Free Software Foundation, Inc.,
26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 */
28
29#include <linux/module.h>
30#include <linux/regmap.h>
31#include <linux/slab.h>
32
33#include <sound/pcm.h>
34#include <sound/pcm_params.h>
35#include <sound/soc.h>
36#include <sound/tlv.h>
37
38#include "ssm2602.h"
39
40/* codec private data */
41struct ssm2602_priv {
42 unsigned int sysclk;
43 const struct snd_pcm_hw_constraint_list *sysclk_constraints;
44
45 struct regmap *regmap;
46
47 enum ssm2602_type type;
48 unsigned int clk_out_pwr;
49};
50
51/*
52 * ssm2602 register cache
53 * We can't read the ssm2602 register space when we are
54 * using 2 wire for device control, so we cache them instead.
55 * There is no point in caching the reset register
56 */
57static const struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
58 { .reg = 0x00, .def = 0x0097 },
59 { .reg = 0x01, .def = 0x0097 },
60 { .reg = 0x02, .def = 0x0079 },
61 { .reg = 0x03, .def = 0x0079 },
62 { .reg = 0x04, .def = 0x000a },
63 { .reg = 0x05, .def = 0x0008 },
64 { .reg = 0x06, .def = 0x009f },
65 { .reg = 0x07, .def = 0x000a },
66 { .reg = 0x08, .def = 0x0000 },
67 { .reg = 0x09, .def = 0x0000 }
68};
69
70
71/*Appending several "None"s just for OSS mixer use*/
72static const char *ssm2602_input_select[] = {
73 "Line", "Mic",
74};
75
76static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
77
78static const struct soc_enum ssm2602_enum[] = {
79 SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
80 ssm2602_input_select),
81 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
82 ssm2602_deemph),
83};
84
85static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
86 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
87 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
88);
89
90static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
91static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
92
93static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
94SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
95 ssm260x_inpga_tlv),
96SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
97
98SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
99SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
100
101SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
102};
103
104static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
105SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
106 0, 127, 0, ssm260x_outmix_tlv),
107SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
108 7, 1, 0),
109SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
110 ssm260x_sidetone_tlv),
111
112SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
113SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
114SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
115};
116
117/* Output Mixer */
118static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
119SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
120SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
121SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
122};
123
124/* Input mux */
125static const struct snd_kcontrol_new ssm2602_input_mux_controls =
126SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
127
128static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
129SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
130SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
131SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
132
133SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
134
135SND_SOC_DAPM_OUTPUT("LOUT"),
136SND_SOC_DAPM_OUTPUT("ROUT"),
137SND_SOC_DAPM_INPUT("RLINEIN"),
138SND_SOC_DAPM_INPUT("LLINEIN"),
139};
140
141static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
142SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
143 ssm260x_output_mixer_controls,
144 ARRAY_SIZE(ssm260x_output_mixer_controls)),
145
146SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
147SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
148
149SND_SOC_DAPM_OUTPUT("LHPOUT"),
150SND_SOC_DAPM_OUTPUT("RHPOUT"),
151SND_SOC_DAPM_INPUT("MICIN"),
152};
153
154static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
155SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
156 ssm260x_output_mixer_controls,
157 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
158};
159
160static const struct snd_soc_dapm_route ssm260x_routes[] = {
161 {"DAC", NULL, "Digital Core Power"},
162 {"ADC", NULL, "Digital Core Power"},
163
164 {"Output Mixer", "Line Bypass Switch", "Line Input"},
165 {"Output Mixer", "HiFi Playback Switch", "DAC"},
166
167 {"ROUT", NULL, "Output Mixer"},
168 {"LOUT", NULL, "Output Mixer"},
169
170 {"Line Input", NULL, "LLINEIN"},
171 {"Line Input", NULL, "RLINEIN"},
172};
173
174static const struct snd_soc_dapm_route ssm2602_routes[] = {
175 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
176
177 {"RHPOUT", NULL, "Output Mixer"},
178 {"LHPOUT", NULL, "Output Mixer"},
179
180 {"Input Mux", "Line", "Line Input"},
181 {"Input Mux", "Mic", "Mic Bias"},
182 {"ADC", NULL, "Input Mux"},
183
184 {"Mic Bias", NULL, "MICIN"},
185};
186
187static const struct snd_soc_dapm_route ssm2604_routes[] = {
188 {"ADC", NULL, "Line Input"},
189};
190
191static const unsigned int ssm2602_rates_12288000[] = {
192 8000, 16000, 32000, 48000, 96000,
193};
194
195static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
196 .list = ssm2602_rates_12288000,
197 .count = ARRAY_SIZE(ssm2602_rates_12288000),
198};
199
200static const unsigned int ssm2602_rates_11289600[] = {
201 8000, 11025, 22050, 44100, 88200,
202};
203
204static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
205 .list = ssm2602_rates_11289600,
206 .count = ARRAY_SIZE(ssm2602_rates_11289600),
207};
208
209struct ssm2602_coeff {
210 u32 mclk;
211 u32 rate;
212 u8 srate;
213};
214
215#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
216
217/* codec mclk clock coefficients */
218static const struct ssm2602_coeff ssm2602_coeff_table[] = {
219 /* 48k */
220 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
221 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
222 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
223
224 /* 32k */
225 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
226 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
227 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
228
229 /* 16k */
230 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
231 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
232 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
233
234 /* 8k */
235 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
236 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
237 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
238 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
239 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
240
241 /* 96k */
242 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
243 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
244 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
245
246 /* 11.025k */
247 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
248 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
249 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
250
251 /* 22.05k */
252 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
253 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
254 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
255
256 /* 44.1k */
257 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
258 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
259 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
260
261 /* 88.2k */
262 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
263 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
264 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
265};
266
267static inline int ssm2602_get_coeff(int mclk, int rate)
268{
269 int i;
270
271 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
272 if (ssm2602_coeff_table[i].rate == rate &&
273 ssm2602_coeff_table[i].mclk == mclk)
274 return ssm2602_coeff_table[i].srate;
275 }
276 return -EINVAL;
277}
278
279static int ssm2602_hw_params(struct snd_pcm_substream *substream,
280 struct snd_pcm_hw_params *params,
281 struct snd_soc_dai *dai)
282{
283 struct snd_soc_component *component = dai->component;
284 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
285 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
286 unsigned int iface;
287
288 if (srate < 0)
289 return srate;
290
291 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
292
293 /* bit size */
294 switch (params_width(params)) {
295 case 16:
296 iface = 0x0;
297 break;
298 case 20:
299 iface = 0x4;
300 break;
301 case 24:
302 iface = 0x8;
303 break;
304 case 32:
305 iface = 0xc;
306 break;
307 default:
308 return -EINVAL;
309 }
310 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
311 IFACE_AUDIO_DATA_LEN, iface);
312 return 0;
313}
314
315static int ssm2602_startup(struct snd_pcm_substream *substream,
316 struct snd_soc_dai *dai)
317{
318 struct snd_soc_component *component = dai->component;
319 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
320
321 if (ssm2602->sysclk_constraints) {
322 snd_pcm_hw_constraint_list(substream->runtime, 0,
323 SNDRV_PCM_HW_PARAM_RATE,
324 ssm2602->sysclk_constraints);
325 }
326
327 return 0;
328}
329
330static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
331{
332 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(dai->component);
333
334 if (mute)
335 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
336 APDIGI_ENABLE_DAC_MUTE,
337 APDIGI_ENABLE_DAC_MUTE);
338 else
339 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
340 APDIGI_ENABLE_DAC_MUTE, 0);
341 return 0;
342}
343
344static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
345 int clk_id, unsigned int freq, int dir)
346{
347 struct snd_soc_component *component = codec_dai->component;
348 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
349
350 if (dir == SND_SOC_CLOCK_IN) {
351 if (clk_id != SSM2602_SYSCLK)
352 return -EINVAL;
353
354 switch (freq) {
355 case 12288000:
356 case 18432000:
357 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
358 break;
359 case 11289600:
360 case 16934400:
361 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
362 break;
363 case 12000000:
364 ssm2602->sysclk_constraints = NULL;
365 break;
366 default:
367 return -EINVAL;
368 }
369 ssm2602->sysclk = freq;
370 } else {
371 unsigned int mask;
372
373 switch (clk_id) {
374 case SSM2602_CLK_CLKOUT:
375 mask = PWR_CLK_OUT_PDN;
376 break;
377 case SSM2602_CLK_XTO:
378 mask = PWR_OSC_PDN;
379 break;
380 default:
381 return -EINVAL;
382 }
383
384 if (freq == 0)
385 ssm2602->clk_out_pwr |= mask;
386 else
387 ssm2602->clk_out_pwr &= ~mask;
388
389 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
390 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
391 }
392
393 return 0;
394}
395
396static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
397 unsigned int fmt)
398{
399 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(codec_dai->component);
400 unsigned int iface = 0;
401
402 /* set master/slave audio interface */
403 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
404 case SND_SOC_DAIFMT_CBM_CFM:
405 iface |= 0x0040;
406 break;
407 case SND_SOC_DAIFMT_CBS_CFS:
408 break;
409 default:
410 return -EINVAL;
411 }
412
413 /* interface format */
414 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
415 case SND_SOC_DAIFMT_I2S:
416 iface |= 0x0002;
417 break;
418 case SND_SOC_DAIFMT_RIGHT_J:
419 break;
420 case SND_SOC_DAIFMT_LEFT_J:
421 iface |= 0x0001;
422 break;
423 case SND_SOC_DAIFMT_DSP_A:
424 iface |= 0x0013;
425 break;
426 case SND_SOC_DAIFMT_DSP_B:
427 iface |= 0x0003;
428 break;
429 default:
430 return -EINVAL;
431 }
432
433 /* clock inversion */
434 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
435 case SND_SOC_DAIFMT_NB_NF:
436 break;
437 case SND_SOC_DAIFMT_IB_IF:
438 iface |= 0x0090;
439 break;
440 case SND_SOC_DAIFMT_IB_NF:
441 iface |= 0x0080;
442 break;
443 case SND_SOC_DAIFMT_NB_IF:
444 iface |= 0x0010;
445 break;
446 default:
447 return -EINVAL;
448 }
449
450 /* set iface */
451 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
452 return 0;
453}
454
455static int ssm2602_set_bias_level(struct snd_soc_component *component,
456 enum snd_soc_bias_level level)
457{
458 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
459
460 switch (level) {
461 case SND_SOC_BIAS_ON:
462 /* vref/mid on, osc and clkout on if enabled */
463 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
464 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
465 ssm2602->clk_out_pwr);
466 break;
467 case SND_SOC_BIAS_PREPARE:
468 break;
469 case SND_SOC_BIAS_STANDBY:
470 /* everything off except vref/vmid, */
471 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
472 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
473 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
474 break;
475 case SND_SOC_BIAS_OFF:
476 /* everything off */
477 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
478 PWR_POWER_OFF, PWR_POWER_OFF);
479 break;
480
481 }
482 return 0;
483}
484
485#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
486 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
487 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
488 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
489 SNDRV_PCM_RATE_96000)
490
491#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
492 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
493
494static const struct snd_soc_dai_ops ssm2602_dai_ops = {
495 .startup = ssm2602_startup,
496 .hw_params = ssm2602_hw_params,
497 .digital_mute = ssm2602_mute,
498 .set_sysclk = ssm2602_set_dai_sysclk,
499 .set_fmt = ssm2602_set_dai_fmt,
500};
501
502static struct snd_soc_dai_driver ssm2602_dai = {
503 .name = "ssm2602-hifi",
504 .playback = {
505 .stream_name = "Playback",
506 .channels_min = 2,
507 .channels_max = 2,
508 .rates = SSM2602_RATES,
509 .formats = SSM2602_FORMATS,},
510 .capture = {
511 .stream_name = "Capture",
512 .channels_min = 2,
513 .channels_max = 2,
514 .rates = SSM2602_RATES,
515 .formats = SSM2602_FORMATS,},
516 .ops = &ssm2602_dai_ops,
517 .symmetric_rates = 1,
518 .symmetric_samplebits = 1,
519};
520
521static int ssm2602_resume(struct snd_soc_component *component)
522{
523 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
524
525 regcache_sync(ssm2602->regmap);
526
527 return 0;
528}
529
530static int ssm2602_component_probe(struct snd_soc_component *component)
531{
532 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
533 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
534 int ret;
535
536 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
537 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
538 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
539 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
540
541 ret = snd_soc_add_component_controls(component, ssm2602_snd_controls,
542 ARRAY_SIZE(ssm2602_snd_controls));
543 if (ret)
544 return ret;
545
546 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
547 ARRAY_SIZE(ssm2602_dapm_widgets));
548 if (ret)
549 return ret;
550
551 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
552 ARRAY_SIZE(ssm2602_routes));
553}
554
555static int ssm2604_component_probe(struct snd_soc_component *component)
556{
557 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
558 int ret;
559
560 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
561 ARRAY_SIZE(ssm2604_dapm_widgets));
562 if (ret)
563 return ret;
564
565 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
566 ARRAY_SIZE(ssm2604_routes));
567}
568
569static int ssm260x_component_probe(struct snd_soc_component *component)
570{
571 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
572 int ret;
573
574 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
575 if (ret < 0) {
576 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
577 return ret;
578 }
579
580 /* set the update bits */
581 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
582 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
583 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
584 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
585 /*select Line in as default input*/
586 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
587 APANA_ENABLE_MIC_BOOST);
588
589 switch (ssm2602->type) {
590 case SSM2602:
591 ret = ssm2602_component_probe(component);
592 break;
593 case SSM2604:
594 ret = ssm2604_component_probe(component);
595 break;
596 }
597
598 return ret;
599}
600
601static const struct snd_soc_component_driver soc_component_dev_ssm2602 = {
602 .probe = ssm260x_component_probe,
603 .resume = ssm2602_resume,
604 .set_bias_level = ssm2602_set_bias_level,
605 .controls = ssm260x_snd_controls,
606 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
607 .dapm_widgets = ssm260x_dapm_widgets,
608 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
609 .dapm_routes = ssm260x_routes,
610 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
611 .suspend_bias_off = 1,
612 .idle_bias_on = 1,
613 .use_pmdown_time = 1,
614 .endianness = 1,
615 .non_legacy_dai_naming = 1,
616};
617
618static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
619{
620 return reg == SSM2602_RESET;
621}
622
623const struct regmap_config ssm2602_regmap_config = {
624 .val_bits = 9,
625 .reg_bits = 7,
626
627 .max_register = SSM2602_RESET,
628 .volatile_reg = ssm2602_register_volatile,
629
630 .cache_type = REGCACHE_RBTREE,
631 .reg_defaults = ssm2602_reg,
632 .num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
633};
634EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
635
636int ssm2602_probe(struct device *dev, enum ssm2602_type type,
637 struct regmap *regmap)
638{
639 struct ssm2602_priv *ssm2602;
640
641 if (IS_ERR(regmap))
642 return PTR_ERR(regmap);
643
644 ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
645 if (ssm2602 == NULL)
646 return -ENOMEM;
647
648 dev_set_drvdata(dev, ssm2602);
649 ssm2602->type = type;
650 ssm2602->regmap = regmap;
651
652 return devm_snd_soc_register_component(dev, &soc_component_dev_ssm2602,
653 &ssm2602_dai, 1);
654}
655EXPORT_SYMBOL_GPL(ssm2602_probe);
656
657MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
658MODULE_AUTHOR("Cliff Cai");
659MODULE_LICENSE("GPL");