1 /* 2 * ALSA SoC TLV320AIC23 codec driver 3 * 4 * Author: Arun KS, <arunks@mistralsolutions.com> 5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd., 6 * 7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie 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 version 2 as 11 * published by the Free Software Foundation. 12 * 13 * Notes: 14 * The AIC23 is a driver for a low power stereo audio 15 * codec tlv320aic23 16 * 17 * The machine layer should disable unsupported inputs/outputs by 18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc. 19 */ 20 21 #include <linux/module.h> 22 #include <linux/moduleparam.h> 23 #include <linux/init.h> 24 #include <linux/delay.h> 25 #include <linux/pm.h> 26 #include <linux/i2c.h> 27 #include <linux/slab.h> 28 #include <sound/core.h> 29 #include <sound/pcm.h> 30 #include <sound/pcm_params.h> 31 #include <sound/soc.h> 32 #include <sound/tlv.h> 33 #include <sound/initval.h> 34 35 #include "tlv320aic23.h" 36 37 /* 38 * AIC23 register cache 39 */ 40 static const u16 tlv320aic23_reg[] = { 41 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */ 42 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */ 43 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */ 44 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */ 45 }; 46 47 static const char *rec_src_text[] = { "Line", "Mic" }; 48 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 49 50 static const struct soc_enum rec_src_enum = 51 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); 52 53 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls = 54 SOC_DAPM_ENUM("Input Select", rec_src_enum); 55 56 static const struct soc_enum tlv320aic23_rec_src = 57 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); 58 static const struct soc_enum tlv320aic23_deemph = 59 SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text); 60 61 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); 62 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); 63 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); 64 65 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, 66 struct snd_ctl_elem_value *ucontrol) 67 { 68 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 69 u16 val, reg; 70 71 val = (ucontrol->value.integer.value[0] & 0x07); 72 73 /* linear conversion to userspace 74 * 000 = -6db 75 * 001 = -9db 76 * 010 = -12db 77 * 011 = -18db (Min) 78 * 100 = 0db (Max) 79 */ 80 val = (val >= 4) ? 4 : (3 - val); 81 82 reg = snd_soc_read(codec, TLV320AIC23_ANLG) & (~0x1C0); 83 snd_soc_write(codec, TLV320AIC23_ANLG, reg | (val << 6)); 84 85 return 0; 86 } 87 88 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, 89 struct snd_ctl_elem_value *ucontrol) 90 { 91 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 92 u16 val; 93 94 val = snd_soc_read(codec, TLV320AIC23_ANLG) & (0x1C0); 95 val = val >> 6; 96 val = (val >= 4) ? 4 : (3 - val); 97 ucontrol->value.integer.value[0] = val; 98 return 0; 99 100 } 101 102 static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { 103 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL, 104 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv), 105 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1), 106 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL, 107 TLV320AIC23_RINVOL, 7, 1, 0), 108 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL, 109 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv), 110 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1), 111 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0), 112 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0, 113 snd_soc_tlv320aic23_get_volsw, 114 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv), 115 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph), 116 }; 117 118 /* PGA Mixer controls for Line and Mic switch */ 119 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = { 120 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0), 121 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0), 122 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0), 123 }; 124 125 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { 126 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1), 127 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1), 128 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0, 129 &tlv320aic23_rec_src_mux_controls), 130 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1, 131 &tlv320aic23_output_mixer_controls[0], 132 ARRAY_SIZE(tlv320aic23_output_mixer_controls)), 133 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0), 134 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0), 135 136 SND_SOC_DAPM_OUTPUT("LHPOUT"), 137 SND_SOC_DAPM_OUTPUT("RHPOUT"), 138 SND_SOC_DAPM_OUTPUT("LOUT"), 139 SND_SOC_DAPM_OUTPUT("ROUT"), 140 141 SND_SOC_DAPM_INPUT("LLINEIN"), 142 SND_SOC_DAPM_INPUT("RLINEIN"), 143 144 SND_SOC_DAPM_INPUT("MICIN"), 145 }; 146 147 static const struct snd_soc_dapm_route tlv320aic23_intercon[] = { 148 /* Output Mixer */ 149 {"Output Mixer", "Line Bypass Switch", "Line Input"}, 150 {"Output Mixer", "Playback Switch", "DAC"}, 151 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"}, 152 153 /* Outputs */ 154 {"RHPOUT", NULL, "Output Mixer"}, 155 {"LHPOUT", NULL, "Output Mixer"}, 156 {"LOUT", NULL, "Output Mixer"}, 157 {"ROUT", NULL, "Output Mixer"}, 158 159 /* Inputs */ 160 {"Line Input", "NULL", "LLINEIN"}, 161 {"Line Input", "NULL", "RLINEIN"}, 162 163 {"Mic Input", "NULL", "MICIN"}, 164 165 /* input mux */ 166 {"Capture Source", "Line", "Line Input"}, 167 {"Capture Source", "Mic", "Mic Input"}, 168 {"ADC", NULL, "Capture Source"}, 169 170 }; 171 172 /* AIC23 driver data */ 173 struct aic23 { 174 enum snd_soc_control_type control_type; 175 int mclk; 176 int requested_adc; 177 int requested_dac; 178 }; 179 180 /* 181 * Common Crystals used 182 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k 183 * 12.0000 Mhz /125 = *96k /136 = 88.235K 184 * 12.2880 Mhz /128 = *96k /192 = 64k 185 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k 186 * 18.4320 Mhz /128 = 144k /192 = *96k 187 */ 188 189 /* 190 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192 191 * USB BOSR 0-250/2 = 125, 1-272/2 = 136 192 */ 193 static const int bosr_usb_divisor_table[] = { 194 128, 125, 192, 136 195 }; 196 #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7)) 197 #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15)) 198 static const unsigned short sr_valid_mask[] = { 199 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/ 200 LOWER_GROUP, /* Usb, bosr - 0*/ 201 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/ 202 UPPER_GROUP, /* Usb, bosr - 1*/ 203 }; 204 /* 205 * Every divisor is a factor of 11*12 206 */ 207 #define SR_MULT (11*12) 208 #define A(x) (SR_MULT/x) 209 static const unsigned char sr_adc_mult_table[] = { 210 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1), 211 A(2), A(2), A(11), A(11), 0, 0, 0, A(1) 212 }; 213 static const unsigned char sr_dac_mult_table[] = { 214 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1), 215 A(2), A(11), A(2), A(11), 0, 0, 0, A(1) 216 }; 217 218 static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc, 219 int dac, int dac_l, int dac_h, int need_dac) 220 { 221 if ((adc >= adc_l) && (adc <= adc_h) && 222 (dac >= dac_l) && (dac <= dac_h)) { 223 int diff_adc = need_adc - adc; 224 int diff_dac = need_dac - dac; 225 return abs(diff_adc) + abs(diff_dac); 226 } 227 return UINT_MAX; 228 } 229 230 static int find_rate(int mclk, u32 need_adc, u32 need_dac) 231 { 232 int i, j; 233 int best_i = -1; 234 int best_j = -1; 235 int best_div = 0; 236 unsigned best_score = UINT_MAX; 237 int adc_l, adc_h, dac_l, dac_h; 238 239 need_adc *= SR_MULT; 240 need_dac *= SR_MULT; 241 /* 242 * rates given are +/- 1/32 243 */ 244 adc_l = need_adc - (need_adc >> 5); 245 adc_h = need_adc + (need_adc >> 5); 246 dac_l = need_dac - (need_dac >> 5); 247 dac_h = need_dac + (need_dac >> 5); 248 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) { 249 int base = mclk / bosr_usb_divisor_table[i]; 250 int mask = sr_valid_mask[i]; 251 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table); 252 j++, mask >>= 1) { 253 int adc; 254 int dac; 255 int score; 256 if ((mask & 1) == 0) 257 continue; 258 adc = base * sr_adc_mult_table[j]; 259 dac = base * sr_dac_mult_table[j]; 260 score = get_score(adc, adc_l, adc_h, need_adc, 261 dac, dac_l, dac_h, need_dac); 262 if (best_score > score) { 263 best_score = score; 264 best_i = i; 265 best_j = j; 266 best_div = 0; 267 } 268 score = get_score((adc >> 1), adc_l, adc_h, need_adc, 269 (dac >> 1), dac_l, dac_h, need_dac); 270 /* prefer to have a /2 */ 271 if ((score != UINT_MAX) && (best_score >= score)) { 272 best_score = score; 273 best_i = i; 274 best_j = j; 275 best_div = 1; 276 } 277 } 278 } 279 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT); 280 } 281 282 #ifdef DEBUG 283 static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk, 284 u32 *sample_rate_adc, u32 *sample_rate_dac) 285 { 286 int src = snd_soc_read(codec, TLV320AIC23_SRATE); 287 int sr = (src >> 2) & 0x0f; 288 int val = (mclk / bosr_usb_divisor_table[src & 3]); 289 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT; 290 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT; 291 if (src & TLV320AIC23_CLKIN_HALF) { 292 adc >>= 1; 293 dac >>= 1; 294 } 295 *sample_rate_adc = adc; 296 *sample_rate_dac = dac; 297 } 298 #endif 299 300 static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk, 301 u32 sample_rate_adc, u32 sample_rate_dac) 302 { 303 /* Search for the right sample rate */ 304 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac); 305 if (data < 0) { 306 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n", 307 __func__, sample_rate_adc, sample_rate_dac); 308 return -EINVAL; 309 } 310 snd_soc_write(codec, TLV320AIC23_SRATE, data); 311 #ifdef DEBUG 312 { 313 u32 adc, dac; 314 get_current_sample_rates(codec, mclk, &adc, &dac); 315 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n", 316 adc, dac, data); 317 } 318 #endif 319 return 0; 320 } 321 322 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, 323 struct snd_pcm_hw_params *params, 324 struct snd_soc_dai *dai) 325 { 326 struct snd_soc_codec *codec = dai->codec; 327 u16 iface_reg; 328 int ret; 329 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 330 u32 sample_rate_adc = aic23->requested_adc; 331 u32 sample_rate_dac = aic23->requested_dac; 332 u32 sample_rate = params_rate(params); 333 334 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 335 aic23->requested_dac = sample_rate_dac = sample_rate; 336 if (!sample_rate_adc) 337 sample_rate_adc = sample_rate; 338 } else { 339 aic23->requested_adc = sample_rate_adc = sample_rate; 340 if (!sample_rate_dac) 341 sample_rate_dac = sample_rate; 342 } 343 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc, 344 sample_rate_dac); 345 if (ret < 0) 346 return ret; 347 348 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2); 349 350 switch (params_format(params)) { 351 case SNDRV_PCM_FORMAT_S16_LE: 352 break; 353 case SNDRV_PCM_FORMAT_S20_3LE: 354 iface_reg |= (0x01 << 2); 355 break; 356 case SNDRV_PCM_FORMAT_S24_LE: 357 iface_reg |= (0x02 << 2); 358 break; 359 case SNDRV_PCM_FORMAT_S32_LE: 360 iface_reg |= (0x03 << 2); 361 break; 362 } 363 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 364 365 return 0; 366 } 367 368 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream, 369 struct snd_soc_dai *dai) 370 { 371 struct snd_soc_codec *codec = dai->codec; 372 373 /* set active */ 374 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0001); 375 376 return 0; 377 } 378 379 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream, 380 struct snd_soc_dai *dai) 381 { 382 struct snd_soc_codec *codec = dai->codec; 383 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 384 385 /* deactivate */ 386 if (!codec->active) { 387 udelay(50); 388 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); 389 } 390 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 391 aic23->requested_dac = 0; 392 else 393 aic23->requested_adc = 0; 394 } 395 396 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute) 397 { 398 struct snd_soc_codec *codec = dai->codec; 399 u16 reg; 400 401 reg = snd_soc_read(codec, TLV320AIC23_DIGT); 402 if (mute) 403 reg |= TLV320AIC23_DACM_MUTE; 404 405 else 406 reg &= ~TLV320AIC23_DACM_MUTE; 407 408 snd_soc_write(codec, TLV320AIC23_DIGT, reg); 409 410 return 0; 411 } 412 413 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, 414 unsigned int fmt) 415 { 416 struct snd_soc_codec *codec = codec_dai->codec; 417 u16 iface_reg; 418 419 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & (~0x03); 420 421 /* set master/slave audio interface */ 422 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 423 case SND_SOC_DAIFMT_CBM_CFM: 424 iface_reg |= TLV320AIC23_MS_MASTER; 425 break; 426 case SND_SOC_DAIFMT_CBS_CFS: 427 iface_reg &= ~TLV320AIC23_MS_MASTER; 428 break; 429 default: 430 return -EINVAL; 431 432 } 433 434 /* interface format */ 435 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 436 case SND_SOC_DAIFMT_I2S: 437 iface_reg |= TLV320AIC23_FOR_I2S; 438 break; 439 case SND_SOC_DAIFMT_DSP_A: 440 iface_reg |= TLV320AIC23_LRP_ON; 441 case SND_SOC_DAIFMT_DSP_B: 442 iface_reg |= TLV320AIC23_FOR_DSP; 443 break; 444 case SND_SOC_DAIFMT_RIGHT_J: 445 break; 446 case SND_SOC_DAIFMT_LEFT_J: 447 iface_reg |= TLV320AIC23_FOR_LJUST; 448 break; 449 default: 450 return -EINVAL; 451 452 } 453 454 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 455 456 return 0; 457 } 458 459 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, 460 int clk_id, unsigned int freq, int dir) 461 { 462 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai); 463 aic23->mclk = freq; 464 return 0; 465 } 466 467 static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, 468 enum snd_soc_bias_level level) 469 { 470 u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0xff7f; 471 472 switch (level) { 473 case SND_SOC_BIAS_ON: 474 /* vref/mid, osc on, dac unmute */ 475 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \ 476 TLV320AIC23_DAC_OFF); 477 snd_soc_write(codec, TLV320AIC23_PWR, reg); 478 break; 479 case SND_SOC_BIAS_PREPARE: 480 break; 481 case SND_SOC_BIAS_STANDBY: 482 /* everything off except vref/vmid, */ 483 snd_soc_write(codec, TLV320AIC23_PWR, 484 reg | TLV320AIC23_CLK_OFF); 485 break; 486 case SND_SOC_BIAS_OFF: 487 /* everything off, dac mute, inactive */ 488 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); 489 snd_soc_write(codec, TLV320AIC23_PWR, 0xffff); 490 break; 491 } 492 codec->dapm.bias_level = level; 493 return 0; 494 } 495 496 #define AIC23_RATES SNDRV_PCM_RATE_8000_96000 497 #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 498 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) 499 500 static const struct snd_soc_dai_ops tlv320aic23_dai_ops = { 501 .prepare = tlv320aic23_pcm_prepare, 502 .hw_params = tlv320aic23_hw_params, 503 .shutdown = tlv320aic23_shutdown, 504 .digital_mute = tlv320aic23_mute, 505 .set_fmt = tlv320aic23_set_dai_fmt, 506 .set_sysclk = tlv320aic23_set_dai_sysclk, 507 }; 508 509 static struct snd_soc_dai_driver tlv320aic23_dai = { 510 .name = "tlv320aic23-hifi", 511 .playback = { 512 .stream_name = "Playback", 513 .channels_min = 2, 514 .channels_max = 2, 515 .rates = AIC23_RATES, 516 .formats = AIC23_FORMATS,}, 517 .capture = { 518 .stream_name = "Capture", 519 .channels_min = 2, 520 .channels_max = 2, 521 .rates = AIC23_RATES, 522 .formats = AIC23_FORMATS,}, 523 .ops = &tlv320aic23_dai_ops, 524 }; 525 526 static int tlv320aic23_suspend(struct snd_soc_codec *codec) 527 { 528 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 529 530 return 0; 531 } 532 533 static int tlv320aic23_resume(struct snd_soc_codec *codec) 534 { 535 snd_soc_cache_sync(codec); 536 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 537 538 return 0; 539 } 540 541 static int tlv320aic23_probe(struct snd_soc_codec *codec) 542 { 543 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec); 544 int ret; 545 546 ret = snd_soc_codec_set_cache_io(codec, 7, 9, aic23->control_type); 547 if (ret < 0) { 548 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 549 return ret; 550 } 551 552 /* Reset codec */ 553 snd_soc_write(codec, TLV320AIC23_RESET, 0); 554 555 /* Write the register default value to cache for reserved registers, 556 * so the write to the these registers are suppressed by the cache 557 * restore code when it skips writes of default registers. 558 */ 559 snd_soc_cache_write(codec, 0x0A, 0); 560 snd_soc_cache_write(codec, 0x0B, 0); 561 snd_soc_cache_write(codec, 0x0C, 0); 562 snd_soc_cache_write(codec, 0x0D, 0); 563 snd_soc_cache_write(codec, 0x0E, 0); 564 565 /* power on device */ 566 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 567 568 snd_soc_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K); 569 570 /* Unmute input */ 571 snd_soc_update_bits(codec, TLV320AIC23_LINVOL, 572 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED); 573 574 snd_soc_update_bits(codec, TLV320AIC23_RINVOL, 575 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED); 576 577 snd_soc_update_bits(codec, TLV320AIC23_ANLG, 578 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED, 579 0); 580 581 /* Default output volume */ 582 snd_soc_write(codec, TLV320AIC23_LCHNVOL, 583 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK); 584 snd_soc_write(codec, TLV320AIC23_RCHNVOL, 585 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK); 586 587 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x1); 588 589 snd_soc_add_codec_controls(codec, tlv320aic23_snd_controls, 590 ARRAY_SIZE(tlv320aic23_snd_controls)); 591 592 return 0; 593 } 594 595 static int tlv320aic23_remove(struct snd_soc_codec *codec) 596 { 597 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 598 return 0; 599 } 600 601 static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = { 602 .reg_cache_size = ARRAY_SIZE(tlv320aic23_reg), 603 .reg_word_size = sizeof(u16), 604 .reg_cache_default = tlv320aic23_reg, 605 .probe = tlv320aic23_probe, 606 .remove = tlv320aic23_remove, 607 .suspend = tlv320aic23_suspend, 608 .resume = tlv320aic23_resume, 609 .set_bias_level = tlv320aic23_set_bias_level, 610 .dapm_widgets = tlv320aic23_dapm_widgets, 611 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets), 612 .dapm_routes = tlv320aic23_intercon, 613 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon), 614 }; 615 616 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 617 /* 618 * If the i2c layer weren't so broken, we could pass this kind of data 619 * around 620 */ 621 static int tlv320aic23_codec_probe(struct i2c_client *i2c, 622 const struct i2c_device_id *i2c_id) 623 { 624 struct aic23 *aic23; 625 int ret; 626 627 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 628 return -EINVAL; 629 630 aic23 = devm_kzalloc(&i2c->dev, sizeof(struct aic23), GFP_KERNEL); 631 if (aic23 == NULL) 632 return -ENOMEM; 633 634 i2c_set_clientdata(i2c, aic23); 635 aic23->control_type = SND_SOC_I2C; 636 637 ret = snd_soc_register_codec(&i2c->dev, 638 &soc_codec_dev_tlv320aic23, &tlv320aic23_dai, 1); 639 return ret; 640 } 641 static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c) 642 { 643 snd_soc_unregister_codec(&i2c->dev); 644 return 0; 645 } 646 647 static const struct i2c_device_id tlv320aic23_id[] = { 648 {"tlv320aic23", 0}, 649 {} 650 }; 651 652 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id); 653 654 static struct i2c_driver tlv320aic23_i2c_driver = { 655 .driver = { 656 .name = "tlv320aic23-codec", 657 }, 658 .probe = tlv320aic23_codec_probe, 659 .remove = __exit_p(tlv320aic23_i2c_remove), 660 .id_table = tlv320aic23_id, 661 }; 662 663 #endif 664 665 static int __init tlv320aic23_modinit(void) 666 { 667 int ret; 668 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 669 ret = i2c_add_driver(&tlv320aic23_i2c_driver); 670 if (ret != 0) { 671 printk(KERN_ERR "Failed to register TLV320AIC23 I2C driver: %d\n", 672 ret); 673 } 674 #endif 675 return ret; 676 } 677 module_init(tlv320aic23_modinit); 678 679 static void __exit tlv320aic23_exit(void) 680 { 681 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 682 i2c_del_driver(&tlv320aic23_i2c_driver); 683 #endif 684 } 685 module_exit(tlv320aic23_exit); 686 687 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver"); 688 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 689 MODULE_LICENSE("GPL"); 690