1 /*
2 * sn95031.c - TI sn95031 Codec driver
3 *
4 * Copyright (C) 2010 Intel Corp
5 * Author: Vinod Koul <vinod.koul@intel.com>
6 * Author: Harsha Priya <priya.harsha@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 *
24 *
25 */
26 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
27
28 #include <linux/platform_device.h>
29 #include <linux/delay.h>
30 #include <linux/slab.h>
31 #include <linux/module.h>
32
33 #include <asm/intel_scu_ipc.h>
34 #include <sound/pcm.h>
35 #include <sound/pcm_params.h>
36 #include <sound/soc.h>
37 #include <sound/soc-dapm.h>
38 #include <sound/initval.h>
39 #include <sound/tlv.h>
40 #include <sound/jack.h>
41 #include "sn95031.h"
42
43 #define SN95031_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100)
44 #define SN95031_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
45
46 /* adc helper functions */
47
48 /* enables mic bias voltage */
sn95031_enable_mic_bias(struct snd_soc_codec * codec)49 static void sn95031_enable_mic_bias(struct snd_soc_codec *codec)
50 {
51 snd_soc_write(codec, SN95031_VAUD, BIT(2)|BIT(1)|BIT(0));
52 snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(2), BIT(2));
53 }
54
55 /* Enable/Disable the ADC depending on the argument */
configure_adc(struct snd_soc_codec * sn95031_codec,int val)56 static void configure_adc(struct snd_soc_codec *sn95031_codec, int val)
57 {
58 int value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
59
60 if (val) {
61 /* Enable and start the ADC */
62 value |= (SN95031_ADC_ENBL | SN95031_ADC_START);
63 value &= (~SN95031_ADC_NO_LOOP);
64 } else {
65 /* Just stop the ADC */
66 value &= (~SN95031_ADC_START);
67 }
68 snd_soc_write(sn95031_codec, SN95031_ADC1CNTL1, value);
69 }
70
71 /*
72 * finds an empty channel for conversion
73 * If the ADC is not enabled then start using 0th channel
74 * itself. Otherwise find an empty channel by looking for a
75 * channel in which the stopbit is set to 1. returns the index
76 * of the first free channel if succeeds or an error code.
77 *
78 * Context: can sleep
79 *
80 */
find_free_channel(struct snd_soc_codec * sn95031_codec)81 static int find_free_channel(struct snd_soc_codec *sn95031_codec)
82 {
83 int i, value;
84
85 /* check whether ADC is enabled */
86 value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
87
88 if ((value & SN95031_ADC_ENBL) == 0)
89 return 0;
90
91 /* ADC is already enabled; Looking for an empty channel */
92 for (i = 0; i < SN95031_ADC_CHANLS_MAX; i++) {
93 value = snd_soc_read(sn95031_codec,
94 SN95031_ADC_CHNL_START_ADDR + i);
95 if (value & SN95031_STOPBIT_MASK)
96 break;
97 }
98 return (i == SN95031_ADC_CHANLS_MAX) ? (-EINVAL) : i;
99 }
100
101 /* Initialize the ADC for reading micbias values. Can sleep. */
sn95031_initialize_adc(struct snd_soc_codec * sn95031_codec)102 static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec)
103 {
104 int base_addr, chnl_addr;
105 int value;
106 int channel_index;
107
108 /* Index of the first channel in which the stop bit is set */
109 channel_index = find_free_channel(sn95031_codec);
110 if (channel_index < 0) {
111 pr_err("No free ADC channels");
112 return channel_index;
113 }
114
115 base_addr = SN95031_ADC_CHNL_START_ADDR + channel_index;
116
117 if (!(channel_index == 0 || channel_index == SN95031_ADC_LOOP_MAX)) {
118 /* Reset stop bit for channels other than 0 and 12 */
119 value = snd_soc_read(sn95031_codec, base_addr);
120 /* Set the stop bit to zero */
121 snd_soc_write(sn95031_codec, base_addr, value & 0xEF);
122 /* Index of the first free channel */
123 base_addr++;
124 channel_index++;
125 }
126
127 /* Since this is the last channel, set the stop bit
128 to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
129 snd_soc_write(sn95031_codec, base_addr,
130 SN95031_AUDIO_DETECT_CODE | 0x10);
131
132 chnl_addr = SN95031_ADC_DATA_START_ADDR + 2 * channel_index;
133 pr_debug("mid_initialize : %x", chnl_addr);
134 configure_adc(sn95031_codec, 1);
135 return chnl_addr;
136 }
137
138
139 /* reads the ADC registers and gets the mic bias value in mV. */
sn95031_get_mic_bias(struct snd_soc_codec * codec)140 static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec)
141 {
142 u16 adc_adr = sn95031_initialize_adc(codec);
143 u16 adc_val1, adc_val2;
144 unsigned int mic_bias;
145
146 sn95031_enable_mic_bias(codec);
147
148 /* Enable the sound card for conversion before reading */
149 snd_soc_write(codec, SN95031_ADC1CNTL3, 0x05);
150 /* Re-toggle the RRDATARD bit */
151 snd_soc_write(codec, SN95031_ADC1CNTL3, 0x04);
152
153 /* Read the higher bits of data */
154 msleep(1000);
155 adc_val1 = snd_soc_read(codec, adc_adr);
156 adc_adr++;
157 adc_val2 = snd_soc_read(codec, adc_adr);
158
159 /* Adding lower two bits to the higher bits */
160 mic_bias = (adc_val1 << 2) + (adc_val2 & 3);
161 mic_bias = (mic_bias * SN95031_ADC_ONE_LSB_MULTIPLIER) / 1000;
162 pr_debug("mic bias = %dmV\n", mic_bias);
163 return mic_bias;
164 }
165 /*end - adc helper functions */
166
sn95031_read(void * ctx,unsigned int reg,unsigned int * val)167 static int sn95031_read(void *ctx, unsigned int reg, unsigned int *val)
168 {
169 u8 value = 0;
170 int ret;
171
172 ret = intel_scu_ipc_ioread8(reg, &value);
173 if (ret == 0)
174 *val = value;
175
176 return ret;
177 }
178
sn95031_write(void * ctx,unsigned int reg,unsigned int value)179 static int sn95031_write(void *ctx, unsigned int reg, unsigned int value)
180 {
181 return intel_scu_ipc_iowrite8(reg, value);
182 }
183
184 static const struct regmap_config sn95031_regmap = {
185 .reg_read = sn95031_read,
186 .reg_write = sn95031_write,
187 };
188
sn95031_set_vaud_bias(struct snd_soc_codec * codec,enum snd_soc_bias_level level)189 static int sn95031_set_vaud_bias(struct snd_soc_codec *codec,
190 enum snd_soc_bias_level level)
191 {
192 switch (level) {
193 case SND_SOC_BIAS_ON:
194 break;
195
196 case SND_SOC_BIAS_PREPARE:
197 if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
198 pr_debug("vaud_bias powering up pll\n");
199 /* power up the pll */
200 snd_soc_write(codec, SN95031_AUDPLLCTRL, BIT(5));
201 /* enable pcm 2 */
202 snd_soc_update_bits(codec, SN95031_PCM2C2,
203 BIT(0), BIT(0));
204 }
205 break;
206
207 case SND_SOC_BIAS_STANDBY:
208 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
209 pr_debug("vaud_bias power up rail\n");
210 /* power up the rail */
211 snd_soc_write(codec, SN95031_VAUD,
212 BIT(2)|BIT(1)|BIT(0));
213 msleep(1);
214 } else if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE) {
215 /* turn off pcm */
216 pr_debug("vaud_bias power dn pcm\n");
217 snd_soc_update_bits(codec, SN95031_PCM2C2, BIT(0), 0);
218 snd_soc_write(codec, SN95031_AUDPLLCTRL, 0);
219 }
220 break;
221
222
223 case SND_SOC_BIAS_OFF:
224 pr_debug("vaud_bias _OFF doing rail shutdown\n");
225 snd_soc_write(codec, SN95031_VAUD, BIT(3));
226 break;
227 }
228
229 codec->dapm.bias_level = level;
230 return 0;
231 }
232
sn95031_vhs_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)233 static int sn95031_vhs_event(struct snd_soc_dapm_widget *w,
234 struct snd_kcontrol *kcontrol, int event)
235 {
236 if (SND_SOC_DAPM_EVENT_ON(event)) {
237 pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
238 /* power up the rail */
239 snd_soc_write(w->codec, SN95031_VHSP, 0x3D);
240 snd_soc_write(w->codec, SN95031_VHSN, 0x3F);
241 msleep(1);
242 } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
243 pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
244 snd_soc_write(w->codec, SN95031_VHSP, 0xC4);
245 snd_soc_write(w->codec, SN95031_VHSN, 0x04);
246 }
247 return 0;
248 }
249
sn95031_vihf_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)250 static int sn95031_vihf_event(struct snd_soc_dapm_widget *w,
251 struct snd_kcontrol *kcontrol, int event)
252 {
253 if (SND_SOC_DAPM_EVENT_ON(event)) {
254 pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
255 /* power up the rail */
256 snd_soc_write(w->codec, SN95031_VIHF, 0x27);
257 msleep(1);
258 } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
259 pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
260 snd_soc_write(w->codec, SN95031_VIHF, 0x24);
261 }
262 return 0;
263 }
264
sn95031_dmic12_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)265 static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w,
266 struct snd_kcontrol *k, int event)
267 {
268 unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
269
270 if (SND_SOC_DAPM_EVENT_ON(event)) {
271 ldo = BIT(5)|BIT(4);
272 clk_dir = BIT(0);
273 data_dir = BIT(7);
274 }
275 /* program DMIC LDO, clock and set clock */
276 snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
277 snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(0), clk_dir);
278 snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(7), data_dir);
279 return 0;
280 }
281
sn95031_dmic34_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)282 static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w,
283 struct snd_kcontrol *k, int event)
284 {
285 unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
286
287 if (SND_SOC_DAPM_EVENT_ON(event)) {
288 ldo = BIT(5)|BIT(4);
289 clk_dir = BIT(2);
290 data_dir = BIT(1);
291 }
292 /* program DMIC LDO, clock and set clock */
293 snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
294 snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(2), clk_dir);
295 snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(1), data_dir);
296 return 0;
297 }
298
sn95031_dmic56_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)299 static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w,
300 struct snd_kcontrol *k, int event)
301 {
302 unsigned int ldo = 0;
303
304 if (SND_SOC_DAPM_EVENT_ON(event))
305 ldo = BIT(7)|BIT(6);
306
307 /* program DMIC LDO */
308 snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo);
309 return 0;
310 }
311
312 /* mux controls */
313 static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" };
314
315 static SOC_ENUM_SINGLE_DECL(sn95031_micl_enum,
316 SN95031_ADCCONFIG, 1, sn95031_mic_texts);
317
318 static const struct snd_kcontrol_new sn95031_micl_mux_control =
319 SOC_DAPM_ENUM("Route", sn95031_micl_enum);
320
321 static SOC_ENUM_SINGLE_DECL(sn95031_micr_enum,
322 SN95031_ADCCONFIG, 3, sn95031_mic_texts);
323
324 static const struct snd_kcontrol_new sn95031_micr_mux_control =
325 SOC_DAPM_ENUM("Route", sn95031_micr_enum);
326
327 static const char *sn95031_input_texts[] = { "DMIC1", "DMIC2", "DMIC3",
328 "DMIC4", "DMIC5", "DMIC6",
329 "ADC Left", "ADC Right" };
330
331 static SOC_ENUM_SINGLE_DECL(sn95031_input1_enum,
332 SN95031_AUDIOMUX12, 0, sn95031_input_texts);
333
334 static const struct snd_kcontrol_new sn95031_input1_mux_control =
335 SOC_DAPM_ENUM("Route", sn95031_input1_enum);
336
337 static SOC_ENUM_SINGLE_DECL(sn95031_input2_enum,
338 SN95031_AUDIOMUX12, 4, sn95031_input_texts);
339
340 static const struct snd_kcontrol_new sn95031_input2_mux_control =
341 SOC_DAPM_ENUM("Route", sn95031_input2_enum);
342
343 static SOC_ENUM_SINGLE_DECL(sn95031_input3_enum,
344 SN95031_AUDIOMUX34, 0, sn95031_input_texts);
345
346 static const struct snd_kcontrol_new sn95031_input3_mux_control =
347 SOC_DAPM_ENUM("Route", sn95031_input3_enum);
348
349 static SOC_ENUM_SINGLE_DECL(sn95031_input4_enum,
350 SN95031_AUDIOMUX34, 4, sn95031_input_texts);
351
352 static const struct snd_kcontrol_new sn95031_input4_mux_control =
353 SOC_DAPM_ENUM("Route", sn95031_input4_enum);
354
355 /* capture path controls */
356
357 static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"};
358
359 /* 0dB to 30dB in 10dB steps */
360 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0);
361
362 static SOC_ENUM_SINGLE_DECL(sn95031_micmode1_enum,
363 SN95031_MICAMP1, 1, sn95031_micmode_text);
364 static SOC_ENUM_SINGLE_DECL(sn95031_micmode2_enum,
365 SN95031_MICAMP2, 1, sn95031_micmode_text);
366
367 static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"};
368
369 static SOC_ENUM_SINGLE_DECL(sn95031_dmic12_cfg_enum,
370 SN95031_DMICMUX, 0, sn95031_dmic_cfg_text);
371 static SOC_ENUM_SINGLE_DECL(sn95031_dmic34_cfg_enum,
372 SN95031_DMICMUX, 1, sn95031_dmic_cfg_text);
373 static SOC_ENUM_SINGLE_DECL(sn95031_dmic56_cfg_enum,
374 SN95031_DMICMUX, 2, sn95031_dmic_cfg_text);
375
376 static const struct snd_kcontrol_new sn95031_snd_controls[] = {
377 SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum),
378 SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum),
379 SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum),
380 SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum),
381 SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum),
382 SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1,
383 2, 4, 0, mic_tlv),
384 SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2,
385 2, 4, 0, mic_tlv),
386 };
387
388 /* DAPM widgets */
389 static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = {
390
391 /* all end points mic, hs etc */
392 SND_SOC_DAPM_OUTPUT("HPOUTL"),
393 SND_SOC_DAPM_OUTPUT("HPOUTR"),
394 SND_SOC_DAPM_OUTPUT("EPOUT"),
395 SND_SOC_DAPM_OUTPUT("IHFOUTL"),
396 SND_SOC_DAPM_OUTPUT("IHFOUTR"),
397 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
398 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
399 SND_SOC_DAPM_OUTPUT("VIB1OUT"),
400 SND_SOC_DAPM_OUTPUT("VIB2OUT"),
401
402 SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */
403 SND_SOC_DAPM_INPUT("AMIC2"),
404 SND_SOC_DAPM_INPUT("DMIC1"),
405 SND_SOC_DAPM_INPUT("DMIC2"),
406 SND_SOC_DAPM_INPUT("DMIC3"),
407 SND_SOC_DAPM_INPUT("DMIC4"),
408 SND_SOC_DAPM_INPUT("DMIC5"),
409 SND_SOC_DAPM_INPUT("DMIC6"),
410 SND_SOC_DAPM_INPUT("LINEINL"),
411 SND_SOC_DAPM_INPUT("LINEINR"),
412
413 SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0),
414 SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0),
415 SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0),
416 SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0),
417 SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0),
418
419 SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0,
420 sn95031_dmic12_event,
421 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
422 SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0,
423 sn95031_dmic34_event,
424 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
425 SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0,
426 sn95031_dmic56_event,
427 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
428
429 SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0,
430 SND_SOC_NOPM, 0, 0),
431
432 SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0,
433 sn95031_vhs_event,
434 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
435 SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0,
436 sn95031_vihf_event,
437 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
438
439 /* playback path driver enables */
440 SND_SOC_DAPM_PGA("Headset Left Playback",
441 SN95031_DRIVEREN, 0, 0, NULL, 0),
442 SND_SOC_DAPM_PGA("Headset Right Playback",
443 SN95031_DRIVEREN, 1, 0, NULL, 0),
444 SND_SOC_DAPM_PGA("Speaker Left Playback",
445 SN95031_DRIVEREN, 2, 0, NULL, 0),
446 SND_SOC_DAPM_PGA("Speaker Right Playback",
447 SN95031_DRIVEREN, 3, 0, NULL, 0),
448 SND_SOC_DAPM_PGA("Vibra1 Playback",
449 SN95031_DRIVEREN, 4, 0, NULL, 0),
450 SND_SOC_DAPM_PGA("Vibra2 Playback",
451 SN95031_DRIVEREN, 5, 0, NULL, 0),
452 SND_SOC_DAPM_PGA("Earpiece Playback",
453 SN95031_DRIVEREN, 6, 0, NULL, 0),
454 SND_SOC_DAPM_PGA("Lineout Left Playback",
455 SN95031_LOCTL, 0, 0, NULL, 0),
456 SND_SOC_DAPM_PGA("Lineout Right Playback",
457 SN95031_LOCTL, 4, 0, NULL, 0),
458
459 /* playback path filter enable */
460 SND_SOC_DAPM_PGA("Headset Left Filter",
461 SN95031_HSEPRXCTRL, 4, 0, NULL, 0),
462 SND_SOC_DAPM_PGA("Headset Right Filter",
463 SN95031_HSEPRXCTRL, 5, 0, NULL, 0),
464 SND_SOC_DAPM_PGA("Speaker Left Filter",
465 SN95031_IHFRXCTRL, 0, 0, NULL, 0),
466 SND_SOC_DAPM_PGA("Speaker Right Filter",
467 SN95031_IHFRXCTRL, 1, 0, NULL, 0),
468
469 /* DACs */
470 SND_SOC_DAPM_DAC("HSDAC Left", "Headset",
471 SN95031_DACCONFIG, 0, 0),
472 SND_SOC_DAPM_DAC("HSDAC Right", "Headset",
473 SN95031_DACCONFIG, 1, 0),
474 SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker",
475 SN95031_DACCONFIG, 2, 0),
476 SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker",
477 SN95031_DACCONFIG, 3, 0),
478 SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1",
479 SN95031_VIB1C5, 1, 0),
480 SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2",
481 SN95031_VIB2C5, 1, 0),
482
483 /* capture widgets */
484 SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1,
485 7, 0, NULL, 0),
486 SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2,
487 7, 0, NULL, 0),
488
489 SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0),
490 SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0),
491 SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0),
492 SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0),
493 SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0),
494 SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0),
495
496 /* ADC have null stream as they will be turned ON by TX path */
497 SND_SOC_DAPM_ADC("ADC Left", NULL,
498 SN95031_ADCCONFIG, 0, 0),
499 SND_SOC_DAPM_ADC("ADC Right", NULL,
500 SN95031_ADCCONFIG, 2, 0),
501
502 SND_SOC_DAPM_MUX("Mic_InputL Capture Route",
503 SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control),
504 SND_SOC_DAPM_MUX("Mic_InputR Capture Route",
505 SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control),
506
507 SND_SOC_DAPM_MUX("Txpath1 Capture Route",
508 SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control),
509 SND_SOC_DAPM_MUX("Txpath2 Capture Route",
510 SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control),
511 SND_SOC_DAPM_MUX("Txpath3 Capture Route",
512 SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control),
513 SND_SOC_DAPM_MUX("Txpath4 Capture Route",
514 SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control),
515
516 };
517
518 static const struct snd_soc_dapm_route sn95031_audio_map[] = {
519 /* headset and earpiece map */
520 { "HPOUTL", NULL, "Headset Rail"},
521 { "HPOUTR", NULL, "Headset Rail"},
522 { "HPOUTL", NULL, "Headset Left Playback" },
523 { "HPOUTR", NULL, "Headset Right Playback" },
524 { "EPOUT", NULL, "Earpiece Playback" },
525 { "Headset Left Playback", NULL, "Headset Left Filter"},
526 { "Headset Right Playback", NULL, "Headset Right Filter"},
527 { "Earpiece Playback", NULL, "Headset Left Filter"},
528 { "Headset Left Filter", NULL, "HSDAC Left"},
529 { "Headset Right Filter", NULL, "HSDAC Right"},
530
531 /* speaker map */
532 { "IHFOUTL", NULL, "Speaker Rail"},
533 { "IHFOUTR", NULL, "Speaker Rail"},
534 { "IHFOUTL", NULL, "Speaker Left Playback"},
535 { "IHFOUTR", NULL, "Speaker Right Playback"},
536 { "Speaker Left Playback", NULL, "Speaker Left Filter"},
537 { "Speaker Right Playback", NULL, "Speaker Right Filter"},
538 { "Speaker Left Filter", NULL, "IHFDAC Left"},
539 { "Speaker Right Filter", NULL, "IHFDAC Right"},
540
541 /* vibra map */
542 { "VIB1OUT", NULL, "Vibra1 Playback"},
543 { "Vibra1 Playback", NULL, "Vibra1 DAC"},
544
545 { "VIB2OUT", NULL, "Vibra2 Playback"},
546 { "Vibra2 Playback", NULL, "Vibra2 DAC"},
547
548 /* lineout */
549 { "LINEOUTL", NULL, "Lineout Left Playback"},
550 { "LINEOUTR", NULL, "Lineout Right Playback"},
551 { "Lineout Left Playback", NULL, "Headset Left Filter"},
552 { "Lineout Left Playback", NULL, "Speaker Left Filter"},
553 { "Lineout Left Playback", NULL, "Vibra1 DAC"},
554 { "Lineout Right Playback", NULL, "Headset Right Filter"},
555 { "Lineout Right Playback", NULL, "Speaker Right Filter"},
556 { "Lineout Right Playback", NULL, "Vibra2 DAC"},
557
558 /* Headset (AMIC1) mic */
559 { "AMIC1Bias", NULL, "AMIC1"},
560 { "MIC1 Enable", NULL, "AMIC1Bias"},
561 { "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"},
562
563 /* AMIC2 */
564 { "AMIC2Bias", NULL, "AMIC2"},
565 { "MIC2 Enable", NULL, "AMIC2Bias"},
566 { "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"},
567
568
569 /* Linein */
570 { "LineIn Enable Left", NULL, "LINEINL"},
571 { "LineIn Enable Right", NULL, "LINEINR"},
572 { "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"},
573 { "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"},
574
575 /* ADC connection */
576 { "ADC Left", NULL, "Mic_InputL Capture Route"},
577 { "ADC Right", NULL, "Mic_InputR Capture Route"},
578
579 /*DMIC connections */
580 { "DMIC1", NULL, "DMIC12supply"},
581 { "DMIC2", NULL, "DMIC12supply"},
582 { "DMIC3", NULL, "DMIC34supply"},
583 { "DMIC4", NULL, "DMIC34supply"},
584 { "DMIC5", NULL, "DMIC56supply"},
585 { "DMIC6", NULL, "DMIC56supply"},
586
587 { "DMIC12Bias", NULL, "DMIC1"},
588 { "DMIC12Bias", NULL, "DMIC2"},
589 { "DMIC34Bias", NULL, "DMIC3"},
590 { "DMIC34Bias", NULL, "DMIC4"},
591 { "DMIC56Bias", NULL, "DMIC5"},
592 { "DMIC56Bias", NULL, "DMIC6"},
593
594 /*TX path inputs*/
595 { "Txpath1 Capture Route", "ADC Left", "ADC Left"},
596 { "Txpath2 Capture Route", "ADC Left", "ADC Left"},
597 { "Txpath3 Capture Route", "ADC Left", "ADC Left"},
598 { "Txpath4 Capture Route", "ADC Left", "ADC Left"},
599 { "Txpath1 Capture Route", "ADC Right", "ADC Right"},
600 { "Txpath2 Capture Route", "ADC Right", "ADC Right"},
601 { "Txpath3 Capture Route", "ADC Right", "ADC Right"},
602 { "Txpath4 Capture Route", "ADC Right", "ADC Right"},
603 { "Txpath1 Capture Route", "DMIC1", "DMIC1"},
604 { "Txpath2 Capture Route", "DMIC1", "DMIC1"},
605 { "Txpath3 Capture Route", "DMIC1", "DMIC1"},
606 { "Txpath4 Capture Route", "DMIC1", "DMIC1"},
607 { "Txpath1 Capture Route", "DMIC2", "DMIC2"},
608 { "Txpath2 Capture Route", "DMIC2", "DMIC2"},
609 { "Txpath3 Capture Route", "DMIC2", "DMIC2"},
610 { "Txpath4 Capture Route", "DMIC2", "DMIC2"},
611 { "Txpath1 Capture Route", "DMIC3", "DMIC3"},
612 { "Txpath2 Capture Route", "DMIC3", "DMIC3"},
613 { "Txpath3 Capture Route", "DMIC3", "DMIC3"},
614 { "Txpath4 Capture Route", "DMIC3", "DMIC3"},
615 { "Txpath1 Capture Route", "DMIC4", "DMIC4"},
616 { "Txpath2 Capture Route", "DMIC4", "DMIC4"},
617 { "Txpath3 Capture Route", "DMIC4", "DMIC4"},
618 { "Txpath4 Capture Route", "DMIC4", "DMIC4"},
619 { "Txpath1 Capture Route", "DMIC5", "DMIC5"},
620 { "Txpath2 Capture Route", "DMIC5", "DMIC5"},
621 { "Txpath3 Capture Route", "DMIC5", "DMIC5"},
622 { "Txpath4 Capture Route", "DMIC5", "DMIC5"},
623 { "Txpath1 Capture Route", "DMIC6", "DMIC6"},
624 { "Txpath2 Capture Route", "DMIC6", "DMIC6"},
625 { "Txpath3 Capture Route", "DMIC6", "DMIC6"},
626 { "Txpath4 Capture Route", "DMIC6", "DMIC6"},
627
628 /* tx path */
629 { "TX1 Enable", NULL, "Txpath1 Capture Route"},
630 { "TX2 Enable", NULL, "Txpath2 Capture Route"},
631 { "TX3 Enable", NULL, "Txpath3 Capture Route"},
632 { "TX4 Enable", NULL, "Txpath4 Capture Route"},
633 { "PCM_Out", NULL, "TX1 Enable"},
634 { "PCM_Out", NULL, "TX2 Enable"},
635 { "PCM_Out", NULL, "TX3 Enable"},
636 { "PCM_Out", NULL, "TX4 Enable"},
637
638 };
639
640 /* speaker and headset mutes, for audio pops and clicks */
sn95031_pcm_hs_mute(struct snd_soc_dai * dai,int mute)641 static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute)
642 {
643 snd_soc_update_bits(dai->codec,
644 SN95031_HSLVOLCTRL, BIT(7), (!mute << 7));
645 snd_soc_update_bits(dai->codec,
646 SN95031_HSRVOLCTRL, BIT(7), (!mute << 7));
647 return 0;
648 }
649
sn95031_pcm_spkr_mute(struct snd_soc_dai * dai,int mute)650 static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute)
651 {
652 snd_soc_update_bits(dai->codec,
653 SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7));
654 snd_soc_update_bits(dai->codec,
655 SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7));
656 return 0;
657 }
658
sn95031_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)659 static int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
660 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
661 {
662 unsigned int format, rate;
663
664 switch (params_width(params)) {
665 case 16:
666 format = BIT(4)|BIT(5);
667 break;
668
669 case 24:
670 format = 0;
671 break;
672 default:
673 return -EINVAL;
674 }
675 snd_soc_update_bits(dai->codec, SN95031_PCM2C2,
676 BIT(4)|BIT(5), format);
677
678 switch (params_rate(params)) {
679 case 48000:
680 pr_debug("RATE_48000\n");
681 rate = 0;
682 break;
683
684 case 44100:
685 pr_debug("RATE_44100\n");
686 rate = BIT(7);
687 break;
688
689 default:
690 pr_err("ERR rate %d\n", params_rate(params));
691 return -EINVAL;
692 }
693 snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate);
694
695 return 0;
696 }
697
698 /* Codec DAI section */
699 static const struct snd_soc_dai_ops sn95031_headset_dai_ops = {
700 .digital_mute = sn95031_pcm_hs_mute,
701 .hw_params = sn95031_pcm_hw_params,
702 };
703
704 static const struct snd_soc_dai_ops sn95031_speaker_dai_ops = {
705 .digital_mute = sn95031_pcm_spkr_mute,
706 .hw_params = sn95031_pcm_hw_params,
707 };
708
709 static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
710 .hw_params = sn95031_pcm_hw_params,
711 };
712
713 static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
714 .hw_params = sn95031_pcm_hw_params,
715 };
716
717 static struct snd_soc_dai_driver sn95031_dais[] = {
718 {
719 .name = "SN95031 Headset",
720 .playback = {
721 .stream_name = "Headset",
722 .channels_min = 2,
723 .channels_max = 2,
724 .rates = SN95031_RATES,
725 .formats = SN95031_FORMATS,
726 },
727 .capture = {
728 .stream_name = "Capture",
729 .channels_min = 1,
730 .channels_max = 5,
731 .rates = SN95031_RATES,
732 .formats = SN95031_FORMATS,
733 },
734 .ops = &sn95031_headset_dai_ops,
735 },
736 { .name = "SN95031 Speaker",
737 .playback = {
738 .stream_name = "Speaker",
739 .channels_min = 2,
740 .channels_max = 2,
741 .rates = SN95031_RATES,
742 .formats = SN95031_FORMATS,
743 },
744 .ops = &sn95031_speaker_dai_ops,
745 },
746 { .name = "SN95031 Vibra1",
747 .playback = {
748 .stream_name = "Vibra1",
749 .channels_min = 1,
750 .channels_max = 1,
751 .rates = SN95031_RATES,
752 .formats = SN95031_FORMATS,
753 },
754 .ops = &sn95031_vib1_dai_ops,
755 },
756 { .name = "SN95031 Vibra2",
757 .playback = {
758 .stream_name = "Vibra2",
759 .channels_min = 1,
760 .channels_max = 1,
761 .rates = SN95031_RATES,
762 .formats = SN95031_FORMATS,
763 },
764 .ops = &sn95031_vib2_dai_ops,
765 },
766 };
767
sn95031_disable_jack_btn(struct snd_soc_codec * codec)768 static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec)
769 {
770 snd_soc_write(codec, SN95031_BTNCTRL2, 0x00);
771 }
772
sn95031_enable_jack_btn(struct snd_soc_codec * codec)773 static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec)
774 {
775 snd_soc_write(codec, SN95031_BTNCTRL1, 0x77);
776 snd_soc_write(codec, SN95031_BTNCTRL2, 0x01);
777 }
778
sn95031_get_headset_state(struct snd_soc_jack * mfld_jack)779 static int sn95031_get_headset_state(struct snd_soc_jack *mfld_jack)
780 {
781 int micbias = sn95031_get_mic_bias(mfld_jack->codec);
782
783 int jack_type = snd_soc_jack_get_type(mfld_jack, micbias);
784
785 pr_debug("jack type detected = %d\n", jack_type);
786 if (jack_type == SND_JACK_HEADSET)
787 sn95031_enable_jack_btn(mfld_jack->codec);
788 return jack_type;
789 }
790
sn95031_jack_detection(struct mfld_jack_data * jack_data)791 void sn95031_jack_detection(struct mfld_jack_data *jack_data)
792 {
793 unsigned int status;
794 unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET;
795
796 pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id);
797 if (jack_data->intr_id & 0x1) {
798 pr_debug("short_push detected\n");
799 status = SND_JACK_HEADSET | SND_JACK_BTN_0;
800 } else if (jack_data->intr_id & 0x2) {
801 pr_debug("long_push detected\n");
802 status = SND_JACK_HEADSET | SND_JACK_BTN_1;
803 } else if (jack_data->intr_id & 0x4) {
804 pr_debug("headset or headphones inserted\n");
805 status = sn95031_get_headset_state(jack_data->mfld_jack);
806 } else if (jack_data->intr_id & 0x8) {
807 pr_debug("headset or headphones removed\n");
808 status = 0;
809 sn95031_disable_jack_btn(jack_data->mfld_jack->codec);
810 } else {
811 pr_err("unidentified interrupt\n");
812 return;
813 }
814
815 snd_soc_jack_report(jack_data->mfld_jack, status, mask);
816 /*button pressed and released so we send explicit button release */
817 if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1))
818 snd_soc_jack_report(jack_data->mfld_jack,
819 SND_JACK_HEADSET, mask);
820 }
821 EXPORT_SYMBOL_GPL(sn95031_jack_detection);
822
823 /* codec registration */
sn95031_codec_probe(struct snd_soc_codec * codec)824 static int sn95031_codec_probe(struct snd_soc_codec *codec)
825 {
826 pr_debug("codec_probe called\n");
827
828 /* PCM interface config
829 * This sets the pcm rx slot conguration to max 6 slots
830 * for max 4 dais (2 stereo and 2 mono)
831 */
832 snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10);
833 snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32);
834 snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54);
835 snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10);
836 snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32);
837 /* pcm port setting
838 * This sets the pcm port to slave and clock at 19.2Mhz which
839 * can support 6slots, sampling rate set per stream in hw-params
840 */
841 snd_soc_write(codec, SN95031_PCM1C1, 0x00);
842 snd_soc_write(codec, SN95031_PCM2C1, 0x01);
843 snd_soc_write(codec, SN95031_PCM2C2, 0x0A);
844 snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4));
845 /* vendor vibra workround, the vibras are muted by
846 * custom register so unmute them
847 */
848 snd_soc_write(codec, SN95031_SSR5, 0x80);
849 snd_soc_write(codec, SN95031_SSR6, 0x80);
850 snd_soc_write(codec, SN95031_VIB1C5, 0x00);
851 snd_soc_write(codec, SN95031_VIB2C5, 0x00);
852 /* configure vibras for pcm port */
853 snd_soc_write(codec, SN95031_VIB1C3, 0x00);
854 snd_soc_write(codec, SN95031_VIB2C3, 0x00);
855
856 /* soft mute ramp time */
857 snd_soc_write(codec, SN95031_SOFTMUTE, 0x3);
858 /* fix the initial volume at 1dB,
859 * default in +9dB,
860 * 1dB give optimal swing on DAC, amps
861 */
862 snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08);
863 snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08);
864 snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08);
865 snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08);
866 /* dac mode and lineout workaround */
867 snd_soc_write(codec, SN95031_SSR2, 0x10);
868 snd_soc_write(codec, SN95031_SSR3, 0x40);
869
870 snd_soc_add_codec_controls(codec, sn95031_snd_controls,
871 ARRAY_SIZE(sn95031_snd_controls));
872
873 return 0;
874 }
875
sn95031_codec_remove(struct snd_soc_codec * codec)876 static int sn95031_codec_remove(struct snd_soc_codec *codec)
877 {
878 pr_debug("codec_remove called\n");
879 sn95031_set_vaud_bias(codec, SND_SOC_BIAS_OFF);
880
881 return 0;
882 }
883
884 static struct snd_soc_codec_driver sn95031_codec = {
885 .probe = sn95031_codec_probe,
886 .remove = sn95031_codec_remove,
887 .set_bias_level = sn95031_set_vaud_bias,
888 .idle_bias_off = true,
889 .dapm_widgets = sn95031_dapm_widgets,
890 .num_dapm_widgets = ARRAY_SIZE(sn95031_dapm_widgets),
891 .dapm_routes = sn95031_audio_map,
892 .num_dapm_routes = ARRAY_SIZE(sn95031_audio_map),
893 };
894
sn95031_device_probe(struct platform_device * pdev)895 static int sn95031_device_probe(struct platform_device *pdev)
896 {
897 struct regmap *regmap;
898
899 pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
900
901 regmap = devm_regmap_init(&pdev->dev, NULL, NULL, &sn95031_regmap);
902 if (IS_ERR(regmap))
903 return PTR_ERR(regmap);
904
905 return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
906 sn95031_dais, ARRAY_SIZE(sn95031_dais));
907 }
908
sn95031_device_remove(struct platform_device * pdev)909 static int sn95031_device_remove(struct platform_device *pdev)
910 {
911 pr_debug("codec device remove called\n");
912 snd_soc_unregister_codec(&pdev->dev);
913 return 0;
914 }
915
916 static struct platform_driver sn95031_codec_driver = {
917 .driver = {
918 .name = "sn95031",
919 .owner = THIS_MODULE,
920 },
921 .probe = sn95031_device_probe,
922 .remove = sn95031_device_remove,
923 };
924
925 module_platform_driver(sn95031_codec_driver);
926
927 MODULE_DESCRIPTION("ASoC TI SN95031 codec driver");
928 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
929 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
930 MODULE_LICENSE("GPL v2");
931 MODULE_ALIAS("platform:sn95031");
932