Version:  2.0.40 2.2.26 2.4.37 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0

Linux/sound/soc/codecs/sn95031.c

  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 */
 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 */
 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  */
 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. */
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. */
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 
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 
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 
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 
233 static int sn95031_vhs_event(struct snd_soc_dapm_widget *w,
234                     struct snd_kcontrol *kcontrol, int event)
235 {
236         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
237 
238         if (SND_SOC_DAPM_EVENT_ON(event)) {
239                 pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
240                 /* power up the rail */
241                 snd_soc_write(codec, SN95031_VHSP, 0x3D);
242                 snd_soc_write(codec, SN95031_VHSN, 0x3F);
243                 msleep(1);
244         } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
245                 pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
246                 snd_soc_write(codec, SN95031_VHSP, 0xC4);
247                 snd_soc_write(codec, SN95031_VHSN, 0x04);
248         }
249         return 0;
250 }
251 
252 static int sn95031_vihf_event(struct snd_soc_dapm_widget *w,
253                     struct snd_kcontrol *kcontrol, int event)
254 {
255         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
256 
257         if (SND_SOC_DAPM_EVENT_ON(event)) {
258                 pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
259                 /* power up the rail */
260                 snd_soc_write(codec, SN95031_VIHF, 0x27);
261                 msleep(1);
262         } else if (SND_SOC_DAPM_EVENT_OFF(event)) {
263                 pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
264                 snd_soc_write(codec, SN95031_VIHF, 0x24);
265         }
266         return 0;
267 }
268 
269 static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w,
270                         struct snd_kcontrol *k, int event)
271 {
272         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
273         unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
274 
275         if (SND_SOC_DAPM_EVENT_ON(event)) {
276                 ldo = BIT(5)|BIT(4);
277                 clk_dir = BIT(0);
278                 data_dir = BIT(7);
279         }
280         /* program DMIC LDO, clock and set clock */
281         snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
282         snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(0), clk_dir);
283         snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(7), data_dir);
284         return 0;
285 }
286 
287 static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w,
288                         struct snd_kcontrol *k, int event)
289 {
290         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
291         unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
292 
293         if (SND_SOC_DAPM_EVENT_ON(event)) {
294                 ldo = BIT(5)|BIT(4);
295                 clk_dir = BIT(2);
296                 data_dir = BIT(1);
297         }
298         /* program DMIC LDO, clock and set clock */
299         snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
300         snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(2), clk_dir);
301         snd_soc_update_bits(codec, SN95031_DMICBUF45, BIT(1), data_dir);
302         return 0;
303 }
304 
305 static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w,
306                         struct snd_kcontrol *k, int event)
307 {
308         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
309         unsigned int ldo = 0;
310 
311         if (SND_SOC_DAPM_EVENT_ON(event))
312                 ldo = BIT(7)|BIT(6);
313 
314         /* program DMIC LDO */
315         snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo);
316         return 0;
317 }
318 
319 /* mux controls */
320 static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" };
321 
322 static SOC_ENUM_SINGLE_DECL(sn95031_micl_enum,
323                             SN95031_ADCCONFIG, 1, sn95031_mic_texts);
324 
325 static const struct snd_kcontrol_new sn95031_micl_mux_control =
326         SOC_DAPM_ENUM("Route", sn95031_micl_enum);
327 
328 static SOC_ENUM_SINGLE_DECL(sn95031_micr_enum,
329                             SN95031_ADCCONFIG, 3, sn95031_mic_texts);
330 
331 static const struct snd_kcontrol_new sn95031_micr_mux_control =
332         SOC_DAPM_ENUM("Route", sn95031_micr_enum);
333 
334 static const char *sn95031_input_texts[] = {    "DMIC1", "DMIC2", "DMIC3",
335                                                 "DMIC4", "DMIC5", "DMIC6",
336                                                 "ADC Left", "ADC Right" };
337 
338 static SOC_ENUM_SINGLE_DECL(sn95031_input1_enum,
339                             SN95031_AUDIOMUX12, 0, sn95031_input_texts);
340 
341 static const struct snd_kcontrol_new sn95031_input1_mux_control =
342         SOC_DAPM_ENUM("Route", sn95031_input1_enum);
343 
344 static SOC_ENUM_SINGLE_DECL(sn95031_input2_enum,
345                             SN95031_AUDIOMUX12, 4, sn95031_input_texts);
346 
347 static const struct snd_kcontrol_new sn95031_input2_mux_control =
348         SOC_DAPM_ENUM("Route", sn95031_input2_enum);
349 
350 static SOC_ENUM_SINGLE_DECL(sn95031_input3_enum,
351                             SN95031_AUDIOMUX34, 0, sn95031_input_texts);
352 
353 static const struct snd_kcontrol_new sn95031_input3_mux_control =
354         SOC_DAPM_ENUM("Route", sn95031_input3_enum);
355 
356 static SOC_ENUM_SINGLE_DECL(sn95031_input4_enum,
357                             SN95031_AUDIOMUX34, 4, sn95031_input_texts);
358 
359 static const struct snd_kcontrol_new sn95031_input4_mux_control =
360         SOC_DAPM_ENUM("Route", sn95031_input4_enum);
361 
362 /* capture path controls */
363 
364 static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"};
365 
366 /* 0dB to 30dB in 10dB steps */
367 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0);
368 
369 static SOC_ENUM_SINGLE_DECL(sn95031_micmode1_enum,
370                             SN95031_MICAMP1, 1, sn95031_micmode_text);
371 static SOC_ENUM_SINGLE_DECL(sn95031_micmode2_enum,
372                             SN95031_MICAMP2, 1, sn95031_micmode_text);
373 
374 static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"};
375 
376 static SOC_ENUM_SINGLE_DECL(sn95031_dmic12_cfg_enum,
377                             SN95031_DMICMUX, 0, sn95031_dmic_cfg_text);
378 static SOC_ENUM_SINGLE_DECL(sn95031_dmic34_cfg_enum,
379                             SN95031_DMICMUX, 1, sn95031_dmic_cfg_text);
380 static SOC_ENUM_SINGLE_DECL(sn95031_dmic56_cfg_enum,
381                             SN95031_DMICMUX, 2, sn95031_dmic_cfg_text);
382 
383 static const struct snd_kcontrol_new sn95031_snd_controls[] = {
384         SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum),
385         SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum),
386         SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum),
387         SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum),
388         SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum),
389         SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1,
390                         2, 4, 0, mic_tlv),
391         SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2,
392                         2, 4, 0, mic_tlv),
393 };
394 
395 /* DAPM widgets */
396 static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = {
397 
398         /* all end points mic, hs etc */
399         SND_SOC_DAPM_OUTPUT("HPOUTL"),
400         SND_SOC_DAPM_OUTPUT("HPOUTR"),
401         SND_SOC_DAPM_OUTPUT("EPOUT"),
402         SND_SOC_DAPM_OUTPUT("IHFOUTL"),
403         SND_SOC_DAPM_OUTPUT("IHFOUTR"),
404         SND_SOC_DAPM_OUTPUT("LINEOUTL"),
405         SND_SOC_DAPM_OUTPUT("LINEOUTR"),
406         SND_SOC_DAPM_OUTPUT("VIB1OUT"),
407         SND_SOC_DAPM_OUTPUT("VIB2OUT"),
408 
409         SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */
410         SND_SOC_DAPM_INPUT("AMIC2"),
411         SND_SOC_DAPM_INPUT("DMIC1"),
412         SND_SOC_DAPM_INPUT("DMIC2"),
413         SND_SOC_DAPM_INPUT("DMIC3"),
414         SND_SOC_DAPM_INPUT("DMIC4"),
415         SND_SOC_DAPM_INPUT("DMIC5"),
416         SND_SOC_DAPM_INPUT("DMIC6"),
417         SND_SOC_DAPM_INPUT("LINEINL"),
418         SND_SOC_DAPM_INPUT("LINEINR"),
419 
420         SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0),
421         SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0),
422         SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0),
423         SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0),
424         SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0),
425 
426         SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0,
427                                 sn95031_dmic12_event,
428                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
429         SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0,
430                                 sn95031_dmic34_event,
431                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
432         SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0,
433                                 sn95031_dmic56_event,
434                                 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
435 
436         SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0,
437                         SND_SOC_NOPM, 0, 0),
438 
439         SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0,
440                         sn95031_vhs_event,
441                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
442         SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0,
443                         sn95031_vihf_event,
444                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
445 
446         /* playback path driver enables */
447         SND_SOC_DAPM_PGA("Headset Left Playback",
448                         SN95031_DRIVEREN, 0, 0, NULL, 0),
449         SND_SOC_DAPM_PGA("Headset Right Playback",
450                         SN95031_DRIVEREN, 1, 0, NULL, 0),
451         SND_SOC_DAPM_PGA("Speaker Left Playback",
452                         SN95031_DRIVEREN, 2, 0, NULL, 0),
453         SND_SOC_DAPM_PGA("Speaker Right Playback",
454                         SN95031_DRIVEREN, 3, 0, NULL, 0),
455         SND_SOC_DAPM_PGA("Vibra1 Playback",
456                         SN95031_DRIVEREN, 4, 0, NULL, 0),
457         SND_SOC_DAPM_PGA("Vibra2 Playback",
458                         SN95031_DRIVEREN, 5, 0, NULL, 0),
459         SND_SOC_DAPM_PGA("Earpiece Playback",
460                         SN95031_DRIVEREN, 6, 0, NULL, 0),
461         SND_SOC_DAPM_PGA("Lineout Left Playback",
462                         SN95031_LOCTL, 0, 0, NULL, 0),
463         SND_SOC_DAPM_PGA("Lineout Right Playback",
464                         SN95031_LOCTL, 4, 0, NULL, 0),
465 
466         /* playback path filter enable */
467         SND_SOC_DAPM_PGA("Headset Left Filter",
468                         SN95031_HSEPRXCTRL, 4, 0, NULL, 0),
469         SND_SOC_DAPM_PGA("Headset Right Filter",
470                         SN95031_HSEPRXCTRL, 5, 0,  NULL, 0),
471         SND_SOC_DAPM_PGA("Speaker Left Filter",
472                         SN95031_IHFRXCTRL, 0, 0,  NULL, 0),
473         SND_SOC_DAPM_PGA("Speaker Right Filter",
474                         SN95031_IHFRXCTRL, 1, 0,  NULL, 0),
475 
476         /* DACs */
477         SND_SOC_DAPM_DAC("HSDAC Left", "Headset",
478                         SN95031_DACCONFIG, 0, 0),
479         SND_SOC_DAPM_DAC("HSDAC Right", "Headset",
480                         SN95031_DACCONFIG, 1, 0),
481         SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker",
482                         SN95031_DACCONFIG, 2, 0),
483         SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker",
484                         SN95031_DACCONFIG, 3, 0),
485         SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1",
486                         SN95031_VIB1C5, 1, 0),
487         SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2",
488                         SN95031_VIB2C5, 1, 0),
489 
490         /* capture widgets */
491         SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1,
492                                 7, 0, NULL, 0),
493         SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2,
494                                 7, 0, NULL, 0),
495 
496         SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0),
497         SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0),
498         SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0),
499         SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0),
500         SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0),
501         SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0),
502 
503         /* ADC have null stream as they will be turned ON by TX path */
504         SND_SOC_DAPM_ADC("ADC Left", NULL,
505                         SN95031_ADCCONFIG, 0, 0),
506         SND_SOC_DAPM_ADC("ADC Right", NULL,
507                         SN95031_ADCCONFIG, 2, 0),
508 
509         SND_SOC_DAPM_MUX("Mic_InputL Capture Route",
510                         SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control),
511         SND_SOC_DAPM_MUX("Mic_InputR Capture Route",
512                         SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control),
513 
514         SND_SOC_DAPM_MUX("Txpath1 Capture Route",
515                         SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control),
516         SND_SOC_DAPM_MUX("Txpath2 Capture Route",
517                         SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control),
518         SND_SOC_DAPM_MUX("Txpath3 Capture Route",
519                         SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control),
520         SND_SOC_DAPM_MUX("Txpath4 Capture Route",
521                         SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control),
522 
523 };
524 
525 static const struct snd_soc_dapm_route sn95031_audio_map[] = {
526         /* headset and earpiece map */
527         { "HPOUTL", NULL, "Headset Rail"},
528         { "HPOUTR", NULL, "Headset Rail"},
529         { "HPOUTL", NULL, "Headset Left Playback" },
530         { "HPOUTR", NULL, "Headset Right Playback" },
531         { "EPOUT", NULL, "Earpiece Playback" },
532         { "Headset Left Playback", NULL, "Headset Left Filter"},
533         { "Headset Right Playback", NULL, "Headset Right Filter"},
534         { "Earpiece Playback", NULL, "Headset Left Filter"},
535         { "Headset Left Filter", NULL, "HSDAC Left"},
536         { "Headset Right Filter", NULL, "HSDAC Right"},
537 
538         /* speaker map */
539         { "IHFOUTL", NULL, "Speaker Rail"},
540         { "IHFOUTR", NULL, "Speaker Rail"},
541         { "IHFOUTL", NULL, "Speaker Left Playback"},
542         { "IHFOUTR", NULL, "Speaker Right Playback"},
543         { "Speaker Left Playback", NULL, "Speaker Left Filter"},
544         { "Speaker Right Playback", NULL, "Speaker Right Filter"},
545         { "Speaker Left Filter", NULL, "IHFDAC Left"},
546         { "Speaker Right Filter", NULL, "IHFDAC Right"},
547 
548         /* vibra map */
549         { "VIB1OUT", NULL, "Vibra1 Playback"},
550         { "Vibra1 Playback", NULL, "Vibra1 DAC"},
551 
552         { "VIB2OUT", NULL, "Vibra2 Playback"},
553         { "Vibra2 Playback", NULL, "Vibra2 DAC"},
554 
555         /* lineout */
556         { "LINEOUTL", NULL, "Lineout Left Playback"},
557         { "LINEOUTR", NULL, "Lineout Right Playback"},
558         { "Lineout Left Playback", NULL, "Headset Left Filter"},
559         { "Lineout Left Playback", NULL, "Speaker Left Filter"},
560         { "Lineout Left Playback", NULL, "Vibra1 DAC"},
561         { "Lineout Right Playback", NULL, "Headset Right Filter"},
562         { "Lineout Right Playback", NULL, "Speaker Right Filter"},
563         { "Lineout Right Playback", NULL, "Vibra2 DAC"},
564 
565         /* Headset (AMIC1) mic */
566         { "AMIC1Bias", NULL, "AMIC1"},
567         { "MIC1 Enable", NULL, "AMIC1Bias"},
568         { "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"},
569 
570         /* AMIC2 */
571         { "AMIC2Bias", NULL, "AMIC2"},
572         { "MIC2 Enable", NULL, "AMIC2Bias"},
573         { "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"},
574 
575 
576         /* Linein */
577         { "LineIn Enable Left", NULL, "LINEINL"},
578         { "LineIn Enable Right", NULL, "LINEINR"},
579         { "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"},
580         { "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"},
581 
582         /* ADC connection */
583         { "ADC Left", NULL, "Mic_InputL Capture Route"},
584         { "ADC Right", NULL, "Mic_InputR Capture Route"},
585 
586         /*DMIC connections */
587         { "DMIC1", NULL, "DMIC12supply"},
588         { "DMIC2", NULL, "DMIC12supply"},
589         { "DMIC3", NULL, "DMIC34supply"},
590         { "DMIC4", NULL, "DMIC34supply"},
591         { "DMIC5", NULL, "DMIC56supply"},
592         { "DMIC6", NULL, "DMIC56supply"},
593 
594         { "DMIC12Bias", NULL, "DMIC1"},
595         { "DMIC12Bias", NULL, "DMIC2"},
596         { "DMIC34Bias", NULL, "DMIC3"},
597         { "DMIC34Bias", NULL, "DMIC4"},
598         { "DMIC56Bias", NULL, "DMIC5"},
599         { "DMIC56Bias", NULL, "DMIC6"},
600 
601         /*TX path inputs*/
602         { "Txpath1 Capture Route", "ADC Left", "ADC Left"},
603         { "Txpath2 Capture Route", "ADC Left", "ADC Left"},
604         { "Txpath3 Capture Route", "ADC Left", "ADC Left"},
605         { "Txpath4 Capture Route", "ADC Left", "ADC Left"},
606         { "Txpath1 Capture Route", "ADC Right", "ADC Right"},
607         { "Txpath2 Capture Route", "ADC Right", "ADC Right"},
608         { "Txpath3 Capture Route", "ADC Right", "ADC Right"},
609         { "Txpath4 Capture Route", "ADC Right", "ADC Right"},
610         { "Txpath1 Capture Route", "DMIC1", "DMIC1"},
611         { "Txpath2 Capture Route", "DMIC1", "DMIC1"},
612         { "Txpath3 Capture Route", "DMIC1", "DMIC1"},
613         { "Txpath4 Capture Route", "DMIC1", "DMIC1"},
614         { "Txpath1 Capture Route", "DMIC2", "DMIC2"},
615         { "Txpath2 Capture Route", "DMIC2", "DMIC2"},
616         { "Txpath3 Capture Route", "DMIC2", "DMIC2"},
617         { "Txpath4 Capture Route", "DMIC2", "DMIC2"},
618         { "Txpath1 Capture Route", "DMIC3", "DMIC3"},
619         { "Txpath2 Capture Route", "DMIC3", "DMIC3"},
620         { "Txpath3 Capture Route", "DMIC3", "DMIC3"},
621         { "Txpath4 Capture Route", "DMIC3", "DMIC3"},
622         { "Txpath1 Capture Route", "DMIC4", "DMIC4"},
623         { "Txpath2 Capture Route", "DMIC4", "DMIC4"},
624         { "Txpath3 Capture Route", "DMIC4", "DMIC4"},
625         { "Txpath4 Capture Route", "DMIC4", "DMIC4"},
626         { "Txpath1 Capture Route", "DMIC5", "DMIC5"},
627         { "Txpath2 Capture Route", "DMIC5", "DMIC5"},
628         { "Txpath3 Capture Route", "DMIC5", "DMIC5"},
629         { "Txpath4 Capture Route", "DMIC5", "DMIC5"},
630         { "Txpath1 Capture Route", "DMIC6", "DMIC6"},
631         { "Txpath2 Capture Route", "DMIC6", "DMIC6"},
632         { "Txpath3 Capture Route", "DMIC6", "DMIC6"},
633         { "Txpath4 Capture Route", "DMIC6", "DMIC6"},
634 
635         /* tx path */
636         { "TX1 Enable", NULL, "Txpath1 Capture Route"},
637         { "TX2 Enable", NULL, "Txpath2 Capture Route"},
638         { "TX3 Enable", NULL, "Txpath3 Capture Route"},
639         { "TX4 Enable", NULL, "Txpath4 Capture Route"},
640         { "PCM_Out", NULL, "TX1 Enable"},
641         { "PCM_Out", NULL, "TX2 Enable"},
642         { "PCM_Out", NULL, "TX3 Enable"},
643         { "PCM_Out", NULL, "TX4 Enable"},
644 
645 };
646 
647 /* speaker and headset mutes, for audio pops and clicks */
648 static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute)
649 {
650         snd_soc_update_bits(dai->codec,
651                         SN95031_HSLVOLCTRL, BIT(7), (!mute << 7));
652         snd_soc_update_bits(dai->codec,
653                         SN95031_HSRVOLCTRL, BIT(7), (!mute << 7));
654         return 0;
655 }
656 
657 static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute)
658 {
659         snd_soc_update_bits(dai->codec,
660                         SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7));
661         snd_soc_update_bits(dai->codec,
662                         SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7));
663         return 0;
664 }
665 
666 static int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
667                 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
668 {
669         unsigned int format, rate;
670 
671         switch (params_width(params)) {
672         case 16:
673                 format = BIT(4)|BIT(5);
674                 break;
675 
676         case 24:
677                 format = 0;
678                 break;
679         default:
680                 return -EINVAL;
681         }
682         snd_soc_update_bits(dai->codec, SN95031_PCM2C2,
683                         BIT(4)|BIT(5), format);
684 
685         switch (params_rate(params)) {
686         case 48000:
687                 pr_debug("RATE_48000\n");
688                 rate = 0;
689                 break;
690 
691         case 44100:
692                 pr_debug("RATE_44100\n");
693                 rate = BIT(7);
694                 break;
695 
696         default:
697                 pr_err("ERR rate %d\n", params_rate(params));
698                 return -EINVAL;
699         }
700         snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate);
701 
702         return 0;
703 }
704 
705 /* Codec DAI section */
706 static const struct snd_soc_dai_ops sn95031_headset_dai_ops = {
707         .digital_mute   = sn95031_pcm_hs_mute,
708         .hw_params      = sn95031_pcm_hw_params,
709 };
710 
711 static const struct snd_soc_dai_ops sn95031_speaker_dai_ops = {
712         .digital_mute   = sn95031_pcm_spkr_mute,
713         .hw_params      = sn95031_pcm_hw_params,
714 };
715 
716 static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
717         .hw_params      = sn95031_pcm_hw_params,
718 };
719 
720 static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
721         .hw_params      = sn95031_pcm_hw_params,
722 };
723 
724 static struct snd_soc_dai_driver sn95031_dais[] = {
725 {
726         .name = "SN95031 Headset",
727         .playback = {
728                 .stream_name = "Headset",
729                 .channels_min = 2,
730                 .channels_max = 2,
731                 .rates = SN95031_RATES,
732                 .formats = SN95031_FORMATS,
733         },
734         .capture = {
735                 .stream_name = "Capture",
736                 .channels_min = 1,
737                 .channels_max = 5,
738                 .rates = SN95031_RATES,
739                 .formats = SN95031_FORMATS,
740         },
741         .ops = &sn95031_headset_dai_ops,
742 },
743 {       .name = "SN95031 Speaker",
744         .playback = {
745                 .stream_name = "Speaker",
746                 .channels_min = 2,
747                 .channels_max = 2,
748                 .rates = SN95031_RATES,
749                 .formats = SN95031_FORMATS,
750         },
751         .ops = &sn95031_speaker_dai_ops,
752 },
753 {       .name = "SN95031 Vibra1",
754         .playback = {
755                 .stream_name = "Vibra1",
756                 .channels_min = 1,
757                 .channels_max = 1,
758                 .rates = SN95031_RATES,
759                 .formats = SN95031_FORMATS,
760         },
761         .ops = &sn95031_vib1_dai_ops,
762 },
763 {       .name = "SN95031 Vibra2",
764         .playback = {
765                 .stream_name = "Vibra2",
766                 .channels_min = 1,
767                 .channels_max = 1,
768                 .rates = SN95031_RATES,
769                 .formats = SN95031_FORMATS,
770         },
771         .ops = &sn95031_vib2_dai_ops,
772 },
773 };
774 
775 static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec)
776 {
777         snd_soc_write(codec, SN95031_BTNCTRL2, 0x00);
778 }
779 
780 static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec)
781 {
782         snd_soc_write(codec, SN95031_BTNCTRL1, 0x77);
783         snd_soc_write(codec, SN95031_BTNCTRL2, 0x01);
784 }
785 
786 static int sn95031_get_headset_state(struct snd_soc_jack *mfld_jack)
787 {
788         int micbias = sn95031_get_mic_bias(mfld_jack->codec);
789 
790         int jack_type = snd_soc_jack_get_type(mfld_jack, micbias);
791 
792         pr_debug("jack type detected = %d\n", jack_type);
793         if (jack_type == SND_JACK_HEADSET)
794                 sn95031_enable_jack_btn(mfld_jack->codec);
795         return jack_type;
796 }
797 
798 void sn95031_jack_detection(struct mfld_jack_data *jack_data)
799 {
800         unsigned int status;
801         unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET;
802 
803         pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id);
804         if (jack_data->intr_id & 0x1) {
805                 pr_debug("short_push detected\n");
806                 status = SND_JACK_HEADSET | SND_JACK_BTN_0;
807         } else if (jack_data->intr_id & 0x2) {
808                 pr_debug("long_push detected\n");
809                 status = SND_JACK_HEADSET | SND_JACK_BTN_1;
810         } else if (jack_data->intr_id & 0x4) {
811                 pr_debug("headset or headphones inserted\n");
812                 status = sn95031_get_headset_state(jack_data->mfld_jack);
813         } else if (jack_data->intr_id & 0x8) {
814                 pr_debug("headset or headphones removed\n");
815                 status = 0;
816                 sn95031_disable_jack_btn(jack_data->mfld_jack->codec);
817         } else {
818                 pr_err("unidentified interrupt\n");
819                 return;
820         }
821 
822         snd_soc_jack_report(jack_data->mfld_jack, status, mask);
823         /*button pressed and released so we send explicit button release */
824         if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1))
825                 snd_soc_jack_report(jack_data->mfld_jack,
826                                 SND_JACK_HEADSET, mask);
827 }
828 EXPORT_SYMBOL_GPL(sn95031_jack_detection);
829 
830 /* codec registration */
831 static int sn95031_codec_probe(struct snd_soc_codec *codec)
832 {
833         pr_debug("codec_probe called\n");
834 
835         /* PCM interface config
836          * This sets the pcm rx slot conguration to max 6 slots
837          * for max 4 dais (2 stereo and 2 mono)
838          */
839         snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10);
840         snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32);
841         snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54);
842         snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10);
843         snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32);
844         /* pcm port setting
845          * This sets the pcm port to slave and clock at 19.2Mhz which
846          * can support 6slots, sampling rate set per stream in hw-params
847          */
848         snd_soc_write(codec, SN95031_PCM1C1, 0x00);
849         snd_soc_write(codec, SN95031_PCM2C1, 0x01);
850         snd_soc_write(codec, SN95031_PCM2C2, 0x0A);
851         snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4));
852         /* vendor vibra workround, the vibras are muted by
853          * custom register so unmute them
854          */
855         snd_soc_write(codec, SN95031_SSR5, 0x80);
856         snd_soc_write(codec, SN95031_SSR6, 0x80);
857         snd_soc_write(codec, SN95031_VIB1C5, 0x00);
858         snd_soc_write(codec, SN95031_VIB2C5, 0x00);
859         /* configure vibras for pcm port */
860         snd_soc_write(codec, SN95031_VIB1C3, 0x00);
861         snd_soc_write(codec, SN95031_VIB2C3, 0x00);
862 
863         /* soft mute ramp time */
864         snd_soc_write(codec, SN95031_SOFTMUTE, 0x3);
865         /* fix the initial volume at 1dB,
866          * default in +9dB,
867          * 1dB give optimal swing on DAC, amps
868          */
869         snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08);
870         snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08);
871         snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08);
872         snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08);
873         /* dac mode and lineout workaround */
874         snd_soc_write(codec, SN95031_SSR2, 0x10);
875         snd_soc_write(codec, SN95031_SSR3, 0x40);
876 
877         return 0;
878 }
879 
880 static struct snd_soc_codec_driver sn95031_codec = {
881         .probe          = sn95031_codec_probe,
882         .set_bias_level = sn95031_set_vaud_bias,
883         .idle_bias_off  = true,
884 
885         .controls       = sn95031_snd_controls,
886         .num_controls   = ARRAY_SIZE(sn95031_snd_controls),
887         .dapm_widgets   = sn95031_dapm_widgets,
888         .num_dapm_widgets       = ARRAY_SIZE(sn95031_dapm_widgets),
889         .dapm_routes    = sn95031_audio_map,
890         .num_dapm_routes        = ARRAY_SIZE(sn95031_audio_map),
891 };
892 
893 static int sn95031_device_probe(struct platform_device *pdev)
894 {
895         struct regmap *regmap;
896 
897         pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
898 
899         regmap = devm_regmap_init(&pdev->dev, NULL, NULL, &sn95031_regmap);
900         if (IS_ERR(regmap))
901                 return PTR_ERR(regmap);
902 
903         return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
904                         sn95031_dais, ARRAY_SIZE(sn95031_dais));
905 }
906 
907 static int sn95031_device_remove(struct platform_device *pdev)
908 {
909         pr_debug("codec device remove called\n");
910         snd_soc_unregister_codec(&pdev->dev);
911         return 0;
912 }
913 
914 static struct platform_driver sn95031_codec_driver = {
915         .driver         = {
916                 .name           = "sn95031",
917         },
918         .probe          = sn95031_device_probe,
919         .remove         = sn95031_device_remove,
920 };
921 
922 module_platform_driver(sn95031_codec_driver);
923 
924 MODULE_DESCRIPTION("ASoC TI SN95031 codec driver");
925 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
926 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
927 MODULE_LICENSE("GPL v2");
928 MODULE_ALIAS("platform:sn95031");
929 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us