1 /*
2 * Common code for ADAU1X61 and ADAU1X81 codecs
3 *
4 * Copyright 2011-2014 Analog Devices Inc.
5 * Author: Lars-Peter Clausen <lars@metafoo.de>
6 *
7 * Licensed under the GPL-2 or later.
8 */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/clk.h>
13 #include <linux/delay.h>
14 #include <linux/slab.h>
15 #include <sound/core.h>
16 #include <sound/pcm.h>
17 #include <sound/pcm_params.h>
18 #include <sound/soc.h>
19 #include <sound/tlv.h>
20 #include <linux/gcd.h>
21 #include <linux/i2c.h>
22 #include <linux/spi/spi.h>
23 #include <linux/regmap.h>
24
25 #include "sigmadsp.h"
26 #include "adau17x1.h"
27 #include "adau-utils.h"
28
29 static const char * const adau17x1_capture_mixer_boost_text[] = {
30 "Normal operation", "Boost Level 1", "Boost Level 2", "Boost Level 3",
31 };
32
33 static SOC_ENUM_SINGLE_DECL(adau17x1_capture_boost_enum,
34 ADAU17X1_REC_POWER_MGMT, 5, adau17x1_capture_mixer_boost_text);
35
36 static const char * const adau17x1_mic_bias_mode_text[] = {
37 "Normal operation", "High performance",
38 };
39
40 static SOC_ENUM_SINGLE_DECL(adau17x1_mic_bias_mode_enum,
41 ADAU17X1_MICBIAS, 3, adau17x1_mic_bias_mode_text);
42
43 static const DECLARE_TLV_DB_MINMAX(adau17x1_digital_tlv, -9563, 0);
44
45 static const struct snd_kcontrol_new adau17x1_controls[] = {
46 SOC_DOUBLE_R_TLV("Digital Capture Volume",
47 ADAU17X1_LEFT_INPUT_DIGITAL_VOL,
48 ADAU17X1_RIGHT_INPUT_DIGITAL_VOL,
49 0, 0xff, 1, adau17x1_digital_tlv),
50 SOC_DOUBLE_R_TLV("Digital Playback Volume", ADAU17X1_DAC_CONTROL1,
51 ADAU17X1_DAC_CONTROL2, 0, 0xff, 1, adau17x1_digital_tlv),
52
53 SOC_SINGLE("ADC High Pass Filter Switch", ADAU17X1_ADC_CONTROL,
54 5, 1, 0),
55 SOC_SINGLE("Playback De-emphasis Switch", ADAU17X1_DAC_CONTROL0,
56 2, 1, 0),
57
58 SOC_ENUM("Capture Boost", adau17x1_capture_boost_enum),
59
60 SOC_ENUM("Mic Bias Mode", adau17x1_mic_bias_mode_enum),
61 };
62
adau17x1_pll_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)63 static int adau17x1_pll_event(struct snd_soc_dapm_widget *w,
64 struct snd_kcontrol *kcontrol, int event)
65 {
66 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
67 struct adau *adau = snd_soc_component_get_drvdata(component);
68
69 if (SND_SOC_DAPM_EVENT_ON(event)) {
70 adau->pll_regs[5] = 1;
71 } else {
72 adau->pll_regs[5] = 0;
73 /* Bypass the PLL when disabled, otherwise registers will become
74 * inaccessible. */
75 regmap_update_bits(adau->regmap, ADAU17X1_CLOCK_CONTROL,
76 ADAU17X1_CLOCK_CONTROL_CORECLK_SRC_PLL, 0);
77 }
78
79 /* The PLL register is 6 bytes long and can only be written at once. */
80 regmap_raw_write(adau->regmap, ADAU17X1_PLL_CONTROL,
81 adau->pll_regs, ARRAY_SIZE(adau->pll_regs));
82
83 if (SND_SOC_DAPM_EVENT_ON(event)) {
84 mdelay(5);
85 regmap_update_bits(adau->regmap, ADAU17X1_CLOCK_CONTROL,
86 ADAU17X1_CLOCK_CONTROL_CORECLK_SRC_PLL,
87 ADAU17X1_CLOCK_CONTROL_CORECLK_SRC_PLL);
88 }
89
90 return 0;
91 }
92
adau17x1_adc_fixup(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)93 static int adau17x1_adc_fixup(struct snd_soc_dapm_widget *w,
94 struct snd_kcontrol *kcontrol, int event)
95 {
96 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
97 struct adau *adau = snd_soc_component_get_drvdata(component);
98
99 /*
100 * If we are capturing, toggle the ADOSR bit in Converter Control 0 to
101 * avoid losing SNR (workaround from ADI). This must be done after
102 * the ADC(s) have been enabled. According to the data sheet, it is
103 * normally illegal to set this bit when the sampling rate is 96 kHz,
104 * but according to ADI it is acceptable for this workaround.
105 */
106 regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
107 ADAU17X1_CONVERTER0_ADOSR, ADAU17X1_CONVERTER0_ADOSR);
108 regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
109 ADAU17X1_CONVERTER0_ADOSR, 0);
110
111 return 0;
112 }
113
114 static const char * const adau17x1_mono_stereo_text[] = {
115 "Stereo",
116 "Mono Left Channel (L+R)",
117 "Mono Right Channel (L+R)",
118 "Mono (L+R)",
119 };
120
121 static SOC_ENUM_SINGLE_DECL(adau17x1_dac_mode_enum,
122 ADAU17X1_DAC_CONTROL0, 6, adau17x1_mono_stereo_text);
123
124 static const struct snd_kcontrol_new adau17x1_dac_mode_mux =
125 SOC_DAPM_ENUM("DAC Mono-Stereo-Mode", adau17x1_dac_mode_enum);
126
127 static const struct snd_soc_dapm_widget adau17x1_dapm_widgets[] = {
128 SND_SOC_DAPM_SUPPLY_S("PLL", 3, SND_SOC_NOPM, 0, 0, adau17x1_pll_event,
129 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
130
131 SND_SOC_DAPM_SUPPLY("AIFCLK", SND_SOC_NOPM, 0, 0, NULL, 0),
132
133 SND_SOC_DAPM_SUPPLY("MICBIAS", ADAU17X1_MICBIAS, 0, 0, NULL, 0),
134
135 SND_SOC_DAPM_SUPPLY("Left Playback Enable", ADAU17X1_PLAY_POWER_MGMT,
136 0, 0, NULL, 0),
137 SND_SOC_DAPM_SUPPLY("Right Playback Enable", ADAU17X1_PLAY_POWER_MGMT,
138 1, 0, NULL, 0),
139
140 SND_SOC_DAPM_MUX("Left DAC Mode Mux", SND_SOC_NOPM, 0, 0,
141 &adau17x1_dac_mode_mux),
142 SND_SOC_DAPM_MUX("Right DAC Mode Mux", SND_SOC_NOPM, 0, 0,
143 &adau17x1_dac_mode_mux),
144
145 SND_SOC_DAPM_ADC_E("Left Decimator", NULL, ADAU17X1_ADC_CONTROL, 0, 0,
146 adau17x1_adc_fixup, SND_SOC_DAPM_POST_PMU),
147 SND_SOC_DAPM_ADC("Right Decimator", NULL, ADAU17X1_ADC_CONTROL, 1, 0),
148 SND_SOC_DAPM_DAC("Left DAC", NULL, ADAU17X1_DAC_CONTROL0, 0, 0),
149 SND_SOC_DAPM_DAC("Right DAC", NULL, ADAU17X1_DAC_CONTROL0, 1, 0),
150 };
151
152 static const struct snd_soc_dapm_route adau17x1_dapm_routes[] = {
153 { "Left Decimator", NULL, "SYSCLK" },
154 { "Right Decimator", NULL, "SYSCLK" },
155 { "Left DAC", NULL, "SYSCLK" },
156 { "Right DAC", NULL, "SYSCLK" },
157 { "Capture", NULL, "SYSCLK" },
158 { "Playback", NULL, "SYSCLK" },
159
160 { "Left DAC", NULL, "Left DAC Mode Mux" },
161 { "Right DAC", NULL, "Right DAC Mode Mux" },
162
163 { "Capture", NULL, "AIFCLK" },
164 { "Playback", NULL, "AIFCLK" },
165 };
166
167 static const struct snd_soc_dapm_route adau17x1_dapm_pll_route = {
168 "SYSCLK", NULL, "PLL",
169 };
170
171 /*
172 * The MUX register for the Capture and Playback MUXs selects either DSP as
173 * source/destination or one of the TDM slots. The TDM slot is selected via
174 * snd_soc_dai_set_tdm_slot(), so we only expose whether to go to the DSP or
175 * directly to the DAI interface with this control.
176 */
adau17x1_dsp_mux_enum_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)177 static int adau17x1_dsp_mux_enum_put(struct snd_kcontrol *kcontrol,
178 struct snd_ctl_elem_value *ucontrol)
179 {
180 struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
181 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
182 struct adau *adau = snd_soc_component_get_drvdata(component);
183 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
184 struct snd_soc_dapm_update update = {};
185 unsigned int stream = e->shift_l;
186 unsigned int val, change;
187 int reg;
188
189 if (ucontrol->value.enumerated.item[0] >= e->items)
190 return -EINVAL;
191
192 switch (ucontrol->value.enumerated.item[0]) {
193 case 0:
194 val = 0;
195 adau->dsp_bypass[stream] = false;
196 break;
197 default:
198 val = (adau->tdm_slot[stream] * 2) + 1;
199 adau->dsp_bypass[stream] = true;
200 break;
201 }
202
203 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
204 reg = ADAU17X1_SERIAL_INPUT_ROUTE;
205 else
206 reg = ADAU17X1_SERIAL_OUTPUT_ROUTE;
207
208 change = snd_soc_component_test_bits(component, reg, 0xff, val);
209 if (change) {
210 update.kcontrol = kcontrol;
211 update.mask = 0xff;
212 update.reg = reg;
213 update.val = val;
214
215 snd_soc_dapm_mux_update_power(dapm, kcontrol,
216 ucontrol->value.enumerated.item[0], e, &update);
217 }
218
219 return change;
220 }
221
adau17x1_dsp_mux_enum_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)222 static int adau17x1_dsp_mux_enum_get(struct snd_kcontrol *kcontrol,
223 struct snd_ctl_elem_value *ucontrol)
224 {
225 struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
226 struct adau *adau = snd_soc_component_get_drvdata(component);
227 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
228 unsigned int stream = e->shift_l;
229 unsigned int reg, val;
230 int ret;
231
232 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
233 reg = ADAU17X1_SERIAL_INPUT_ROUTE;
234 else
235 reg = ADAU17X1_SERIAL_OUTPUT_ROUTE;
236
237 ret = regmap_read(adau->regmap, reg, &val);
238 if (ret)
239 return ret;
240
241 if (val != 0)
242 val = 1;
243 ucontrol->value.enumerated.item[0] = val;
244
245 return 0;
246 }
247
248 #define DECLARE_ADAU17X1_DSP_MUX_CTRL(_name, _label, _stream, _text) \
249 const struct snd_kcontrol_new _name = \
250 SOC_DAPM_ENUM_EXT(_label, (const struct soc_enum)\
251 SOC_ENUM_SINGLE(SND_SOC_NOPM, _stream, \
252 ARRAY_SIZE(_text), _text), \
253 adau17x1_dsp_mux_enum_get, adau17x1_dsp_mux_enum_put)
254
255 static const char * const adau17x1_dac_mux_text[] = {
256 "DSP",
257 "AIFIN",
258 };
259
260 static const char * const adau17x1_capture_mux_text[] = {
261 "DSP",
262 "Decimator",
263 };
264
265 static DECLARE_ADAU17X1_DSP_MUX_CTRL(adau17x1_dac_mux, "DAC Playback Mux",
266 SNDRV_PCM_STREAM_PLAYBACK, adau17x1_dac_mux_text);
267
268 static DECLARE_ADAU17X1_DSP_MUX_CTRL(adau17x1_capture_mux, "Capture Mux",
269 SNDRV_PCM_STREAM_CAPTURE, adau17x1_capture_mux_text);
270
271 static const struct snd_soc_dapm_widget adau17x1_dsp_dapm_widgets[] = {
272 SND_SOC_DAPM_PGA("DSP", ADAU17X1_DSP_RUN, 0, 0, NULL, 0),
273 SND_SOC_DAPM_SIGGEN("DSP Siggen"),
274
275 SND_SOC_DAPM_MUX("DAC Playback Mux", SND_SOC_NOPM, 0, 0,
276 &adau17x1_dac_mux),
277 SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0,
278 &adau17x1_capture_mux),
279 };
280
281 static const struct snd_soc_dapm_route adau17x1_dsp_dapm_routes[] = {
282 { "DAC Playback Mux", "DSP", "DSP" },
283 { "DAC Playback Mux", "AIFIN", "Playback" },
284
285 { "Left DAC Mode Mux", "Stereo", "DAC Playback Mux" },
286 { "Left DAC Mode Mux", "Mono (L+R)", "DAC Playback Mux" },
287 { "Left DAC Mode Mux", "Mono Left Channel (L+R)", "DAC Playback Mux" },
288 { "Right DAC Mode Mux", "Stereo", "DAC Playback Mux" },
289 { "Right DAC Mode Mux", "Mono (L+R)", "DAC Playback Mux" },
290 { "Right DAC Mode Mux", "Mono Right Channel (L+R)", "DAC Playback Mux" },
291
292 { "Capture Mux", "DSP", "DSP" },
293 { "Capture Mux", "Decimator", "Left Decimator" },
294 { "Capture Mux", "Decimator", "Right Decimator" },
295
296 { "Capture", NULL, "Capture Mux" },
297
298 { "DSP", NULL, "DSP Siggen" },
299
300 { "DSP", NULL, "Left Decimator" },
301 { "DSP", NULL, "Right Decimator" },
302 { "DSP", NULL, "Playback" },
303 };
304
305 static const struct snd_soc_dapm_route adau17x1_no_dsp_dapm_routes[] = {
306 { "Left DAC Mode Mux", "Stereo", "Playback" },
307 { "Left DAC Mode Mux", "Mono (L+R)", "Playback" },
308 { "Left DAC Mode Mux", "Mono Left Channel (L+R)", "Playback" },
309 { "Right DAC Mode Mux", "Stereo", "Playback" },
310 { "Right DAC Mode Mux", "Mono (L+R)", "Playback" },
311 { "Right DAC Mode Mux", "Mono Right Channel (L+R)", "Playback" },
312 { "Capture", NULL, "Left Decimator" },
313 { "Capture", NULL, "Right Decimator" },
314 };
315
adau17x1_has_dsp(struct adau * adau)316 bool adau17x1_has_dsp(struct adau *adau)
317 {
318 switch (adau->type) {
319 case ADAU1761:
320 case ADAU1381:
321 case ADAU1781:
322 return true;
323 default:
324 return false;
325 }
326 }
327 EXPORT_SYMBOL_GPL(adau17x1_has_dsp);
328
adau17x1_set_dai_pll(struct snd_soc_dai * dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)329 static int adau17x1_set_dai_pll(struct snd_soc_dai *dai, int pll_id,
330 int source, unsigned int freq_in, unsigned int freq_out)
331 {
332 struct snd_soc_component *component = dai->component;
333 struct adau *adau = snd_soc_component_get_drvdata(component);
334 int ret;
335
336 if (freq_in < 8000000 || freq_in > 27000000)
337 return -EINVAL;
338
339 ret = adau_calc_pll_cfg(freq_in, freq_out, adau->pll_regs);
340 if (ret < 0)
341 return ret;
342
343 /* The PLL register is 6 bytes long and can only be written at once. */
344 ret = regmap_raw_write(adau->regmap, ADAU17X1_PLL_CONTROL,
345 adau->pll_regs, ARRAY_SIZE(adau->pll_regs));
346 if (ret)
347 return ret;
348
349 adau->pll_freq = freq_out;
350
351 return 0;
352 }
353
adau17x1_set_dai_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)354 static int adau17x1_set_dai_sysclk(struct snd_soc_dai *dai,
355 int clk_id, unsigned int freq, int dir)
356 {
357 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(dai->component);
358 struct adau *adau = snd_soc_component_get_drvdata(dai->component);
359 bool is_pll;
360 bool was_pll;
361
362 switch (clk_id) {
363 case ADAU17X1_CLK_SRC_MCLK:
364 is_pll = false;
365 break;
366 case ADAU17X1_CLK_SRC_PLL_AUTO:
367 if (!adau->mclk)
368 return -EINVAL;
369 /* Fall-through */
370 case ADAU17X1_CLK_SRC_PLL:
371 is_pll = true;
372 break;
373 default:
374 return -EINVAL;
375 }
376
377 switch (adau->clk_src) {
378 case ADAU17X1_CLK_SRC_MCLK:
379 was_pll = false;
380 break;
381 case ADAU17X1_CLK_SRC_PLL:
382 case ADAU17X1_CLK_SRC_PLL_AUTO:
383 was_pll = true;
384 break;
385 default:
386 return -EINVAL;
387 }
388
389 adau->sysclk = freq;
390
391 if (is_pll != was_pll) {
392 if (is_pll) {
393 snd_soc_dapm_add_routes(dapm,
394 &adau17x1_dapm_pll_route, 1);
395 } else {
396 snd_soc_dapm_del_routes(dapm,
397 &adau17x1_dapm_pll_route, 1);
398 }
399 }
400
401 adau->clk_src = clk_id;
402
403 return 0;
404 }
405
adau17x1_auto_pll(struct snd_soc_dai * dai,struct snd_pcm_hw_params * params)406 static int adau17x1_auto_pll(struct snd_soc_dai *dai,
407 struct snd_pcm_hw_params *params)
408 {
409 struct adau *adau = snd_soc_dai_get_drvdata(dai);
410 unsigned int pll_rate;
411
412 switch (params_rate(params)) {
413 case 48000:
414 case 8000:
415 case 12000:
416 case 16000:
417 case 24000:
418 case 32000:
419 case 96000:
420 pll_rate = 48000 * 1024;
421 break;
422 case 44100:
423 case 7350:
424 case 11025:
425 case 14700:
426 case 22050:
427 case 29400:
428 case 88200:
429 pll_rate = 44100 * 1024;
430 break;
431 default:
432 return -EINVAL;
433 }
434
435 return adau17x1_set_dai_pll(dai, ADAU17X1_PLL, ADAU17X1_PLL_SRC_MCLK,
436 clk_get_rate(adau->mclk), pll_rate);
437 }
438
adau17x1_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)439 static int adau17x1_hw_params(struct snd_pcm_substream *substream,
440 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
441 {
442 struct snd_soc_component *component = dai->component;
443 struct adau *adau = snd_soc_component_get_drvdata(component);
444 unsigned int val, div, dsp_div;
445 unsigned int freq;
446 int ret;
447
448 switch (adau->clk_src) {
449 case ADAU17X1_CLK_SRC_PLL_AUTO:
450 ret = adau17x1_auto_pll(dai, params);
451 if (ret)
452 return ret;
453 /* Fall-through */
454 case ADAU17X1_CLK_SRC_PLL:
455 freq = adau->pll_freq;
456 break;
457 default:
458 freq = adau->sysclk;
459 break;
460 }
461
462 if (freq % params_rate(params) != 0)
463 return -EINVAL;
464
465 switch (freq / params_rate(params)) {
466 case 1024: /* fs */
467 div = 0;
468 dsp_div = 1;
469 break;
470 case 6144: /* fs / 6 */
471 div = 1;
472 dsp_div = 6;
473 break;
474 case 4096: /* fs / 4 */
475 div = 2;
476 dsp_div = 5;
477 break;
478 case 3072: /* fs / 3 */
479 div = 3;
480 dsp_div = 4;
481 break;
482 case 2048: /* fs / 2 */
483 div = 4;
484 dsp_div = 3;
485 break;
486 case 1536: /* fs / 1.5 */
487 div = 5;
488 dsp_div = 2;
489 break;
490 case 512: /* fs / 0.5 */
491 div = 6;
492 dsp_div = 0;
493 break;
494 default:
495 return -EINVAL;
496 }
497
498 regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
499 ADAU17X1_CONVERTER0_CONVSR_MASK, div);
500 if (adau17x1_has_dsp(adau)) {
501 regmap_write(adau->regmap, ADAU17X1_SERIAL_SAMPLING_RATE, div);
502 regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dsp_div);
503 }
504
505 if (adau->sigmadsp) {
506 ret = adau17x1_setup_firmware(component, params_rate(params));
507 if (ret < 0)
508 return ret;
509 }
510
511 if (adau->dai_fmt != SND_SOC_DAIFMT_RIGHT_J)
512 return 0;
513
514 switch (params_width(params)) {
515 case 16:
516 val = ADAU17X1_SERIAL_PORT1_DELAY16;
517 break;
518 case 24:
519 val = ADAU17X1_SERIAL_PORT1_DELAY8;
520 break;
521 case 32:
522 val = ADAU17X1_SERIAL_PORT1_DELAY0;
523 break;
524 default:
525 return -EINVAL;
526 }
527
528 return regmap_update_bits(adau->regmap, ADAU17X1_SERIAL_PORT1,
529 ADAU17X1_SERIAL_PORT1_DELAY_MASK, val);
530 }
531
adau17x1_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)532 static int adau17x1_set_dai_fmt(struct snd_soc_dai *dai,
533 unsigned int fmt)
534 {
535 struct adau *adau = snd_soc_component_get_drvdata(dai->component);
536 unsigned int ctrl0, ctrl1;
537 int lrclk_pol;
538
539 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
540 case SND_SOC_DAIFMT_CBM_CFM:
541 ctrl0 = ADAU17X1_SERIAL_PORT0_MASTER;
542 adau->master = true;
543 break;
544 case SND_SOC_DAIFMT_CBS_CFS:
545 ctrl0 = 0;
546 adau->master = false;
547 break;
548 default:
549 return -EINVAL;
550 }
551
552 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
553 case SND_SOC_DAIFMT_I2S:
554 lrclk_pol = 0;
555 ctrl1 = ADAU17X1_SERIAL_PORT1_DELAY1;
556 break;
557 case SND_SOC_DAIFMT_LEFT_J:
558 case SND_SOC_DAIFMT_RIGHT_J:
559 lrclk_pol = 1;
560 ctrl1 = ADAU17X1_SERIAL_PORT1_DELAY0;
561 break;
562 case SND_SOC_DAIFMT_DSP_A:
563 lrclk_pol = 1;
564 ctrl0 |= ADAU17X1_SERIAL_PORT0_PULSE_MODE;
565 ctrl1 = ADAU17X1_SERIAL_PORT1_DELAY1;
566 break;
567 case SND_SOC_DAIFMT_DSP_B:
568 lrclk_pol = 1;
569 ctrl0 |= ADAU17X1_SERIAL_PORT0_PULSE_MODE;
570 ctrl1 = ADAU17X1_SERIAL_PORT1_DELAY0;
571 break;
572 default:
573 return -EINVAL;
574 }
575
576 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
577 case SND_SOC_DAIFMT_NB_NF:
578 break;
579 case SND_SOC_DAIFMT_IB_NF:
580 ctrl0 |= ADAU17X1_SERIAL_PORT0_BCLK_POL;
581 break;
582 case SND_SOC_DAIFMT_NB_IF:
583 lrclk_pol = !lrclk_pol;
584 break;
585 case SND_SOC_DAIFMT_IB_IF:
586 ctrl0 |= ADAU17X1_SERIAL_PORT0_BCLK_POL;
587 lrclk_pol = !lrclk_pol;
588 break;
589 default:
590 return -EINVAL;
591 }
592
593 if (lrclk_pol)
594 ctrl0 |= ADAU17X1_SERIAL_PORT0_LRCLK_POL;
595
596 regmap_write(adau->regmap, ADAU17X1_SERIAL_PORT0, ctrl0);
597 regmap_write(adau->regmap, ADAU17X1_SERIAL_PORT1, ctrl1);
598
599 adau->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
600
601 return 0;
602 }
603
adau17x1_set_dai_tdm_slot(struct snd_soc_dai * dai,unsigned int tx_mask,unsigned int rx_mask,int slots,int slot_width)604 static int adau17x1_set_dai_tdm_slot(struct snd_soc_dai *dai,
605 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
606 {
607 struct adau *adau = snd_soc_component_get_drvdata(dai->component);
608 unsigned int ser_ctrl0, ser_ctrl1;
609 unsigned int conv_ctrl0, conv_ctrl1;
610
611 /* I2S mode */
612 if (slots == 0) {
613 slots = 2;
614 rx_mask = 3;
615 tx_mask = 3;
616 slot_width = 32;
617 }
618
619 switch (slots) {
620 case 2:
621 ser_ctrl0 = ADAU17X1_SERIAL_PORT0_STEREO;
622 break;
623 case 4:
624 ser_ctrl0 = ADAU17X1_SERIAL_PORT0_TDM4;
625 break;
626 case 8:
627 if (adau->type == ADAU1361)
628 return -EINVAL;
629
630 ser_ctrl0 = ADAU17X1_SERIAL_PORT0_TDM8;
631 break;
632 default:
633 return -EINVAL;
634 }
635
636 switch (slot_width * slots) {
637 case 32:
638 if (adau->type == ADAU1761)
639 return -EINVAL;
640
641 ser_ctrl1 = ADAU17X1_SERIAL_PORT1_BCLK32;
642 break;
643 case 64:
644 ser_ctrl1 = ADAU17X1_SERIAL_PORT1_BCLK64;
645 break;
646 case 48:
647 ser_ctrl1 = ADAU17X1_SERIAL_PORT1_BCLK48;
648 break;
649 case 128:
650 ser_ctrl1 = ADAU17X1_SERIAL_PORT1_BCLK128;
651 break;
652 case 256:
653 if (adau->type == ADAU1361)
654 return -EINVAL;
655
656 ser_ctrl1 = ADAU17X1_SERIAL_PORT1_BCLK256;
657 break;
658 default:
659 return -EINVAL;
660 }
661
662 switch (rx_mask) {
663 case 0x03:
664 conv_ctrl1 = ADAU17X1_CONVERTER1_ADC_PAIR(1);
665 adau->tdm_slot[SNDRV_PCM_STREAM_CAPTURE] = 0;
666 break;
667 case 0x0c:
668 conv_ctrl1 = ADAU17X1_CONVERTER1_ADC_PAIR(2);
669 adau->tdm_slot[SNDRV_PCM_STREAM_CAPTURE] = 1;
670 break;
671 case 0x30:
672 conv_ctrl1 = ADAU17X1_CONVERTER1_ADC_PAIR(3);
673 adau->tdm_slot[SNDRV_PCM_STREAM_CAPTURE] = 2;
674 break;
675 case 0xc0:
676 conv_ctrl1 = ADAU17X1_CONVERTER1_ADC_PAIR(4);
677 adau->tdm_slot[SNDRV_PCM_STREAM_CAPTURE] = 3;
678 break;
679 default:
680 return -EINVAL;
681 }
682
683 switch (tx_mask) {
684 case 0x03:
685 conv_ctrl0 = ADAU17X1_CONVERTER0_DAC_PAIR(1);
686 adau->tdm_slot[SNDRV_PCM_STREAM_PLAYBACK] = 0;
687 break;
688 case 0x0c:
689 conv_ctrl0 = ADAU17X1_CONVERTER0_DAC_PAIR(2);
690 adau->tdm_slot[SNDRV_PCM_STREAM_PLAYBACK] = 1;
691 break;
692 case 0x30:
693 conv_ctrl0 = ADAU17X1_CONVERTER0_DAC_PAIR(3);
694 adau->tdm_slot[SNDRV_PCM_STREAM_PLAYBACK] = 2;
695 break;
696 case 0xc0:
697 conv_ctrl0 = ADAU17X1_CONVERTER0_DAC_PAIR(4);
698 adau->tdm_slot[SNDRV_PCM_STREAM_PLAYBACK] = 3;
699 break;
700 default:
701 return -EINVAL;
702 }
703
704 regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
705 ADAU17X1_CONVERTER0_DAC_PAIR_MASK, conv_ctrl0);
706 regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER1,
707 ADAU17X1_CONVERTER1_ADC_PAIR_MASK, conv_ctrl1);
708 regmap_update_bits(adau->regmap, ADAU17X1_SERIAL_PORT0,
709 ADAU17X1_SERIAL_PORT0_TDM_MASK, ser_ctrl0);
710 regmap_update_bits(adau->regmap, ADAU17X1_SERIAL_PORT1,
711 ADAU17X1_SERIAL_PORT1_BCLK_MASK, ser_ctrl1);
712
713 if (!adau17x1_has_dsp(adau))
714 return 0;
715
716 if (adau->dsp_bypass[SNDRV_PCM_STREAM_PLAYBACK]) {
717 regmap_write(adau->regmap, ADAU17X1_SERIAL_INPUT_ROUTE,
718 (adau->tdm_slot[SNDRV_PCM_STREAM_PLAYBACK] * 2) + 1);
719 }
720
721 if (adau->dsp_bypass[SNDRV_PCM_STREAM_CAPTURE]) {
722 regmap_write(adau->regmap, ADAU17X1_SERIAL_OUTPUT_ROUTE,
723 (adau->tdm_slot[SNDRV_PCM_STREAM_CAPTURE] * 2) + 1);
724 }
725
726 return 0;
727 }
728
adau17x1_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)729 static int adau17x1_startup(struct snd_pcm_substream *substream,
730 struct snd_soc_dai *dai)
731 {
732 struct adau *adau = snd_soc_component_get_drvdata(dai->component);
733
734 if (adau->sigmadsp)
735 return sigmadsp_restrict_params(adau->sigmadsp, substream);
736
737 return 0;
738 }
739
740 const struct snd_soc_dai_ops adau17x1_dai_ops = {
741 .hw_params = adau17x1_hw_params,
742 .set_sysclk = adau17x1_set_dai_sysclk,
743 .set_fmt = adau17x1_set_dai_fmt,
744 .set_pll = adau17x1_set_dai_pll,
745 .set_tdm_slot = adau17x1_set_dai_tdm_slot,
746 .startup = adau17x1_startup,
747 };
748 EXPORT_SYMBOL_GPL(adau17x1_dai_ops);
749
adau17x1_set_micbias_voltage(struct snd_soc_component * component,enum adau17x1_micbias_voltage micbias)750 int adau17x1_set_micbias_voltage(struct snd_soc_component *component,
751 enum adau17x1_micbias_voltage micbias)
752 {
753 struct adau *adau = snd_soc_component_get_drvdata(component);
754
755 switch (micbias) {
756 case ADAU17X1_MICBIAS_0_90_AVDD:
757 case ADAU17X1_MICBIAS_0_65_AVDD:
758 break;
759 default:
760 return -EINVAL;
761 }
762
763 return regmap_write(adau->regmap, ADAU17X1_MICBIAS, micbias << 2);
764 }
765 EXPORT_SYMBOL_GPL(adau17x1_set_micbias_voltage);
766
adau17x1_precious_register(struct device * dev,unsigned int reg)767 bool adau17x1_precious_register(struct device *dev, unsigned int reg)
768 {
769 /* SigmaDSP parameter memory */
770 if (reg < 0x400)
771 return true;
772
773 return false;
774 }
775 EXPORT_SYMBOL_GPL(adau17x1_precious_register);
776
adau17x1_readable_register(struct device * dev,unsigned int reg)777 bool adau17x1_readable_register(struct device *dev, unsigned int reg)
778 {
779 /* SigmaDSP parameter memory */
780 if (reg < 0x400)
781 return true;
782
783 switch (reg) {
784 case ADAU17X1_CLOCK_CONTROL:
785 case ADAU17X1_PLL_CONTROL:
786 case ADAU17X1_REC_POWER_MGMT:
787 case ADAU17X1_MICBIAS:
788 case ADAU17X1_SERIAL_PORT0:
789 case ADAU17X1_SERIAL_PORT1:
790 case ADAU17X1_CONVERTER0:
791 case ADAU17X1_CONVERTER1:
792 case ADAU17X1_LEFT_INPUT_DIGITAL_VOL:
793 case ADAU17X1_RIGHT_INPUT_DIGITAL_VOL:
794 case ADAU17X1_ADC_CONTROL:
795 case ADAU17X1_PLAY_POWER_MGMT:
796 case ADAU17X1_DAC_CONTROL0:
797 case ADAU17X1_DAC_CONTROL1:
798 case ADAU17X1_DAC_CONTROL2:
799 case ADAU17X1_SERIAL_PORT_PAD:
800 case ADAU17X1_CONTROL_PORT_PAD0:
801 case ADAU17X1_CONTROL_PORT_PAD1:
802 case ADAU17X1_DSP_SAMPLING_RATE:
803 case ADAU17X1_SERIAL_INPUT_ROUTE:
804 case ADAU17X1_SERIAL_OUTPUT_ROUTE:
805 case ADAU17X1_DSP_ENABLE:
806 case ADAU17X1_DSP_RUN:
807 case ADAU17X1_SERIAL_SAMPLING_RATE:
808 return true;
809 default:
810 break;
811 }
812 return false;
813 }
814 EXPORT_SYMBOL_GPL(adau17x1_readable_register);
815
adau17x1_volatile_register(struct device * dev,unsigned int reg)816 bool adau17x1_volatile_register(struct device *dev, unsigned int reg)
817 {
818 /* SigmaDSP parameter and program memory */
819 if (reg < 0x4000)
820 return true;
821
822 switch (reg) {
823 /* The PLL register is 6 bytes long */
824 case ADAU17X1_PLL_CONTROL:
825 case ADAU17X1_PLL_CONTROL + 1:
826 case ADAU17X1_PLL_CONTROL + 2:
827 case ADAU17X1_PLL_CONTROL + 3:
828 case ADAU17X1_PLL_CONTROL + 4:
829 case ADAU17X1_PLL_CONTROL + 5:
830 return true;
831 default:
832 break;
833 }
834
835 return false;
836 }
837 EXPORT_SYMBOL_GPL(adau17x1_volatile_register);
838
adau17x1_setup_firmware(struct snd_soc_component * component,unsigned int rate)839 int adau17x1_setup_firmware(struct snd_soc_component *component,
840 unsigned int rate)
841 {
842 int ret;
843 int dspsr, dsp_run;
844 struct adau *adau = snd_soc_component_get_drvdata(component);
845 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
846
847 /* Check if sample rate is the same as before. If it is there is no
848 * point in performing the below steps as the call to
849 * sigmadsp_setup(...) will return directly when it finds the sample
850 * rate to be the same as before. By checking this we can prevent an
851 * audiable popping noise which occours when toggling DSP_RUN.
852 */
853 if (adau->sigmadsp->current_samplerate == rate)
854 return 0;
855
856 snd_soc_dapm_mutex_lock(dapm);
857
858 ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
859 if (ret)
860 goto err;
861
862 ret = regmap_read(adau->regmap, ADAU17X1_DSP_RUN, &dsp_run);
863 if (ret)
864 goto err;
865
866 regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 1);
867 regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, 0xf);
868 regmap_write(adau->regmap, ADAU17X1_DSP_RUN, 0);
869
870 ret = sigmadsp_setup(adau->sigmadsp, rate);
871 if (ret) {
872 regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 0);
873 goto err;
874 }
875 regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dspsr);
876 regmap_write(adau->regmap, ADAU17X1_DSP_RUN, dsp_run);
877
878 err:
879 snd_soc_dapm_mutex_unlock(dapm);
880
881 return ret;
882 }
883 EXPORT_SYMBOL_GPL(adau17x1_setup_firmware);
884
adau17x1_add_widgets(struct snd_soc_component * component)885 int adau17x1_add_widgets(struct snd_soc_component *component)
886 {
887 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
888 struct adau *adau = snd_soc_component_get_drvdata(component);
889 int ret;
890
891 ret = snd_soc_add_component_controls(component, adau17x1_controls,
892 ARRAY_SIZE(adau17x1_controls));
893 if (ret)
894 return ret;
895 ret = snd_soc_dapm_new_controls(dapm, adau17x1_dapm_widgets,
896 ARRAY_SIZE(adau17x1_dapm_widgets));
897 if (ret)
898 return ret;
899
900 if (adau17x1_has_dsp(adau)) {
901 ret = snd_soc_dapm_new_controls(dapm, adau17x1_dsp_dapm_widgets,
902 ARRAY_SIZE(adau17x1_dsp_dapm_widgets));
903 if (ret)
904 return ret;
905
906 if (!adau->sigmadsp)
907 return 0;
908
909 ret = sigmadsp_attach(adau->sigmadsp, component);
910 if (ret) {
911 dev_err(component->dev, "Failed to attach firmware: %d\n",
912 ret);
913 return ret;
914 }
915 }
916
917 return 0;
918 }
919 EXPORT_SYMBOL_GPL(adau17x1_add_widgets);
920
adau17x1_add_routes(struct snd_soc_component * component)921 int adau17x1_add_routes(struct snd_soc_component *component)
922 {
923 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
924 struct adau *adau = snd_soc_component_get_drvdata(component);
925 int ret;
926
927 ret = snd_soc_dapm_add_routes(dapm, adau17x1_dapm_routes,
928 ARRAY_SIZE(adau17x1_dapm_routes));
929 if (ret)
930 return ret;
931
932 if (adau17x1_has_dsp(adau)) {
933 ret = snd_soc_dapm_add_routes(dapm, adau17x1_dsp_dapm_routes,
934 ARRAY_SIZE(adau17x1_dsp_dapm_routes));
935 } else {
936 ret = snd_soc_dapm_add_routes(dapm, adau17x1_no_dsp_dapm_routes,
937 ARRAY_SIZE(adau17x1_no_dsp_dapm_routes));
938 }
939
940 if (adau->clk_src != ADAU17X1_CLK_SRC_MCLK)
941 snd_soc_dapm_add_routes(dapm, &adau17x1_dapm_pll_route, 1);
942
943 return ret;
944 }
945 EXPORT_SYMBOL_GPL(adau17x1_add_routes);
946
adau17x1_resume(struct snd_soc_component * component)947 int adau17x1_resume(struct snd_soc_component *component)
948 {
949 struct adau *adau = snd_soc_component_get_drvdata(component);
950
951 if (adau->switch_mode)
952 adau->switch_mode(component->dev);
953
954 regcache_sync(adau->regmap);
955
956 return 0;
957 }
958 EXPORT_SYMBOL_GPL(adau17x1_resume);
959
adau17x1_probe(struct device * dev,struct regmap * regmap,enum adau17x1_type type,void (* switch_mode)(struct device * dev),const char * firmware_name)960 int adau17x1_probe(struct device *dev, struct regmap *regmap,
961 enum adau17x1_type type, void (*switch_mode)(struct device *dev),
962 const char *firmware_name)
963 {
964 struct adau *adau;
965 int ret;
966
967 if (IS_ERR(regmap))
968 return PTR_ERR(regmap);
969
970 adau = devm_kzalloc(dev, sizeof(*adau), GFP_KERNEL);
971 if (!adau)
972 return -ENOMEM;
973
974 adau->mclk = devm_clk_get(dev, "mclk");
975 if (IS_ERR(adau->mclk)) {
976 if (PTR_ERR(adau->mclk) != -ENOENT)
977 return PTR_ERR(adau->mclk);
978 /* Clock is optional (for the driver) */
979 adau->mclk = NULL;
980 } else if (adau->mclk) {
981 adau->clk_src = ADAU17X1_CLK_SRC_PLL_AUTO;
982
983 /*
984 * Any valid PLL output rate will work at this point, use one
985 * that is likely to be chosen later as well. The register will
986 * be written when the PLL is powered up for the first time.
987 */
988 ret = adau_calc_pll_cfg(clk_get_rate(adau->mclk), 48000 * 1024,
989 adau->pll_regs);
990 if (ret < 0)
991 return ret;
992
993 ret = clk_prepare_enable(adau->mclk);
994 if (ret)
995 return ret;
996 }
997
998 adau->regmap = regmap;
999 adau->switch_mode = switch_mode;
1000 adau->type = type;
1001
1002 dev_set_drvdata(dev, adau);
1003
1004 if (firmware_name) {
1005 adau->sigmadsp = devm_sigmadsp_init_regmap(dev, regmap, NULL,
1006 firmware_name);
1007 if (IS_ERR(adau->sigmadsp)) {
1008 dev_warn(dev, "Could not find firmware file: %ld\n",
1009 PTR_ERR(adau->sigmadsp));
1010 adau->sigmadsp = NULL;
1011 }
1012 }
1013
1014 if (switch_mode)
1015 switch_mode(dev);
1016
1017 return 0;
1018 }
1019 EXPORT_SYMBOL_GPL(adau17x1_probe);
1020
adau17x1_remove(struct device * dev)1021 void adau17x1_remove(struct device *dev)
1022 {
1023 struct adau *adau = dev_get_drvdata(dev);
1024
1025 if (adau->mclk)
1026 clk_disable_unprepare(adau->mclk);
1027 }
1028 EXPORT_SYMBOL_GPL(adau17x1_remove);
1029
1030 MODULE_DESCRIPTION("ASoC ADAU1X61/ADAU1X81 common code");
1031 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
1032 MODULE_LICENSE("GPL");
1033
