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