1 /* 2 * File: sound/soc/codecs/ssm2602.c 3 * Author: Cliff Cai <Cliff.Cai@analog.com> 4 * 5 * Created: Tue June 06 2008 6 * Description: Driver for ssm2602 sound chip 7 * 8 * Modified: 9 * Copyright 2008 Analog Devices Inc. 10 * 11 * Bugs: Enter bugs at http://blackfin.uclinux.org/ 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, see the file COPYING, or write 25 * to the Free Software Foundation, Inc., 26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 27 */ 28 29 #include <linux/module.h> 30 #include <linux/regmap.h> 31 #include <linux/slab.h> 32 33 #include <sound/pcm.h> 34 #include <sound/pcm_params.h> 35 #include <sound/soc.h> 36 #include <sound/tlv.h> 37 38 #include "ssm2602.h" 39 40 /* codec private data */ 41 struct ssm2602_priv { 42 unsigned int sysclk; 43 const struct snd_pcm_hw_constraint_list *sysclk_constraints; 44 45 struct regmap *regmap; 46 47 enum ssm2602_type type; 48 unsigned int clk_out_pwr; 49 }; 50 51 /* 52 * ssm2602 register cache 53 * We can't read the ssm2602 register space when we are 54 * using 2 wire for device control, so we cache them instead. 55 * There is no point in caching the reset register 56 */ 57 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = { 58 0x0097, 0x0097, 0x0079, 0x0079, 59 0x000a, 0x0008, 0x009f, 0x000a, 60 0x0000, 0x0000 61 }; 62 63 64 /*Appending several "None"s just for OSS mixer use*/ 65 static const char *ssm2602_input_select[] = { 66 "Line", "Mic", 67 }; 68 69 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 70 71 static const struct soc_enum ssm2602_enum[] = { 72 SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select), 73 ssm2602_input_select), 74 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph), 75 ssm2602_deemph), 76 }; 77 78 static const unsigned int ssm260x_outmix_tlv[] = { 79 TLV_DB_RANGE_HEAD(2), 80 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0), 81 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0), 82 }; 83 84 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0); 85 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0); 86 87 static const struct snd_kcontrol_new ssm260x_snd_controls[] = { 88 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0, 89 ssm260x_inpga_tlv), 90 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), 91 92 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), 93 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), 94 95 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), 96 }; 97 98 static const struct snd_kcontrol_new ssm2602_snd_controls[] = { 99 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 100 0, 127, 0, ssm260x_outmix_tlv), 101 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 102 7, 1, 0), 103 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1, 104 ssm260x_sidetone_tlv), 105 106 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), 107 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), 108 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), 109 }; 110 111 /* Output Mixer */ 112 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { 113 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), 114 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), 115 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), 116 }; 117 118 /* Input mux */ 119 static const struct snd_kcontrol_new ssm2602_input_mux_controls = 120 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]); 121 122 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { 123 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), 124 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), 125 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), 126 127 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0), 128 129 SND_SOC_DAPM_OUTPUT("LOUT"), 130 SND_SOC_DAPM_OUTPUT("ROUT"), 131 SND_SOC_DAPM_INPUT("RLINEIN"), 132 SND_SOC_DAPM_INPUT("LLINEIN"), 133 }; 134 135 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { 136 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, 137 ssm260x_output_mixer_controls, 138 ARRAY_SIZE(ssm260x_output_mixer_controls)), 139 140 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), 141 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), 142 143 SND_SOC_DAPM_OUTPUT("LHPOUT"), 144 SND_SOC_DAPM_OUTPUT("RHPOUT"), 145 SND_SOC_DAPM_INPUT("MICIN"), 146 }; 147 148 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { 149 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, 150 ssm260x_output_mixer_controls, 151 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */ 152 }; 153 154 static const struct snd_soc_dapm_route ssm260x_routes[] = { 155 {"DAC", NULL, "Digital Core Power"}, 156 {"ADC", NULL, "Digital Core Power"}, 157 158 {"Output Mixer", "Line Bypass Switch", "Line Input"}, 159 {"Output Mixer", "HiFi Playback Switch", "DAC"}, 160 161 {"ROUT", NULL, "Output Mixer"}, 162 {"LOUT", NULL, "Output Mixer"}, 163 164 {"Line Input", NULL, "LLINEIN"}, 165 {"Line Input", NULL, "RLINEIN"}, 166 }; 167 168 static const struct snd_soc_dapm_route ssm2602_routes[] = { 169 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, 170 171 {"RHPOUT", NULL, "Output Mixer"}, 172 {"LHPOUT", NULL, "Output Mixer"}, 173 174 {"Input Mux", "Line", "Line Input"}, 175 {"Input Mux", "Mic", "Mic Bias"}, 176 {"ADC", NULL, "Input Mux"}, 177 178 {"Mic Bias", NULL, "MICIN"}, 179 }; 180 181 static const struct snd_soc_dapm_route ssm2604_routes[] = { 182 {"ADC", NULL, "Line Input"}, 183 }; 184 185 static const unsigned int ssm2602_rates_12288000[] = { 186 8000, 16000, 32000, 48000, 96000, 187 }; 188 189 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = { 190 .list = ssm2602_rates_12288000, 191 .count = ARRAY_SIZE(ssm2602_rates_12288000), 192 }; 193 194 static const unsigned int ssm2602_rates_11289600[] = { 195 8000, 44100, 88200, 196 }; 197 198 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = { 199 .list = ssm2602_rates_11289600, 200 .count = ARRAY_SIZE(ssm2602_rates_11289600), 201 }; 202 203 struct ssm2602_coeff { 204 u32 mclk; 205 u32 rate; 206 u8 srate; 207 }; 208 209 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb)) 210 211 /* codec mclk clock coefficients */ 212 static const struct ssm2602_coeff ssm2602_coeff_table[] = { 213 /* 48k */ 214 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)}, 215 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)}, 216 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)}, 217 218 /* 32k */ 219 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)}, 220 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)}, 221 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)}, 222 223 /* 16k */ 224 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)}, 225 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)}, 226 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)}, 227 228 /* 8k */ 229 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)}, 230 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)}, 231 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)}, 232 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)}, 233 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)}, 234 235 /* 96k */ 236 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)}, 237 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)}, 238 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)}, 239 240 /* 44.1k */ 241 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)}, 242 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)}, 243 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)}, 244 245 /* 88.2k */ 246 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)}, 247 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)}, 248 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)}, 249 }; 250 251 static inline int ssm2602_get_coeff(int mclk, int rate) 252 { 253 int i; 254 255 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) { 256 if (ssm2602_coeff_table[i].rate == rate && 257 ssm2602_coeff_table[i].mclk == mclk) 258 return ssm2602_coeff_table[i].srate; 259 } 260 return -EINVAL; 261 } 262 263 static int ssm2602_hw_params(struct snd_pcm_substream *substream, 264 struct snd_pcm_hw_params *params, 265 struct snd_soc_dai *dai) 266 { 267 struct snd_soc_codec *codec = dai->codec; 268 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 269 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); 270 unsigned int iface; 271 272 if (srate < 0) 273 return srate; 274 275 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate); 276 277 /* bit size */ 278 switch (params_width(params)) { 279 case 16: 280 iface = 0x0; 281 break; 282 case 20: 283 iface = 0x4; 284 break; 285 case 24: 286 iface = 0x8; 287 break; 288 case 32: 289 iface = 0xc; 290 break; 291 default: 292 return -EINVAL; 293 } 294 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE, 295 IFACE_AUDIO_DATA_LEN, iface); 296 return 0; 297 } 298 299 static int ssm2602_startup(struct snd_pcm_substream *substream, 300 struct snd_soc_dai *dai) 301 { 302 struct snd_soc_codec *codec = dai->codec; 303 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 304 305 if (ssm2602->sysclk_constraints) { 306 snd_pcm_hw_constraint_list(substream->runtime, 0, 307 SNDRV_PCM_HW_PARAM_RATE, 308 ssm2602->sysclk_constraints); 309 } 310 311 return 0; 312 } 313 314 static int ssm2602_mute(struct snd_soc_dai *dai, int mute) 315 { 316 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec); 317 318 if (mute) 319 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 320 APDIGI_ENABLE_DAC_MUTE, 321 APDIGI_ENABLE_DAC_MUTE); 322 else 323 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 324 APDIGI_ENABLE_DAC_MUTE, 0); 325 return 0; 326 } 327 328 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 329 int clk_id, unsigned int freq, int dir) 330 { 331 struct snd_soc_codec *codec = codec_dai->codec; 332 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 333 334 if (dir == SND_SOC_CLOCK_IN) { 335 if (clk_id != SSM2602_SYSCLK) 336 return -EINVAL; 337 338 switch (freq) { 339 case 12288000: 340 case 18432000: 341 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000; 342 break; 343 case 11289600: 344 case 16934400: 345 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600; 346 break; 347 case 12000000: 348 ssm2602->sysclk_constraints = NULL; 349 break; 350 default: 351 return -EINVAL; 352 } 353 ssm2602->sysclk = freq; 354 } else { 355 unsigned int mask; 356 357 switch (clk_id) { 358 case SSM2602_CLK_CLKOUT: 359 mask = PWR_CLK_OUT_PDN; 360 break; 361 case SSM2602_CLK_XTO: 362 mask = PWR_OSC_PDN; 363 break; 364 default: 365 return -EINVAL; 366 } 367 368 if (freq == 0) 369 ssm2602->clk_out_pwr |= mask; 370 else 371 ssm2602->clk_out_pwr &= ~mask; 372 373 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 374 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); 375 } 376 377 return 0; 378 } 379 380 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, 381 unsigned int fmt) 382 { 383 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec); 384 unsigned int iface = 0; 385 386 /* set master/slave audio interface */ 387 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 388 case SND_SOC_DAIFMT_CBM_CFM: 389 iface |= 0x0040; 390 break; 391 case SND_SOC_DAIFMT_CBS_CFS: 392 break; 393 default: 394 return -EINVAL; 395 } 396 397 /* interface format */ 398 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 399 case SND_SOC_DAIFMT_I2S: 400 iface |= 0x0002; 401 break; 402 case SND_SOC_DAIFMT_RIGHT_J: 403 break; 404 case SND_SOC_DAIFMT_LEFT_J: 405 iface |= 0x0001; 406 break; 407 case SND_SOC_DAIFMT_DSP_A: 408 iface |= 0x0013; 409 break; 410 case SND_SOC_DAIFMT_DSP_B: 411 iface |= 0x0003; 412 break; 413 default: 414 return -EINVAL; 415 } 416 417 /* clock inversion */ 418 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 419 case SND_SOC_DAIFMT_NB_NF: 420 break; 421 case SND_SOC_DAIFMT_IB_IF: 422 iface |= 0x0090; 423 break; 424 case SND_SOC_DAIFMT_IB_NF: 425 iface |= 0x0080; 426 break; 427 case SND_SOC_DAIFMT_NB_IF: 428 iface |= 0x0010; 429 break; 430 default: 431 return -EINVAL; 432 } 433 434 /* set iface */ 435 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface); 436 return 0; 437 } 438 439 static int ssm2602_set_bias_level(struct snd_soc_codec *codec, 440 enum snd_soc_bias_level level) 441 { 442 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 443 444 switch (level) { 445 case SND_SOC_BIAS_ON: 446 /* vref/mid on, osc and clkout on if enabled */ 447 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 448 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 449 ssm2602->clk_out_pwr); 450 break; 451 case SND_SOC_BIAS_PREPARE: 452 break; 453 case SND_SOC_BIAS_STANDBY: 454 /* everything off except vref/vmid, */ 455 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 456 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 457 PWR_CLK_OUT_PDN | PWR_OSC_PDN); 458 break; 459 case SND_SOC_BIAS_OFF: 460 /* everything off */ 461 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 462 PWR_POWER_OFF, PWR_POWER_OFF); 463 break; 464 465 } 466 codec->dapm.bias_level = level; 467 return 0; 468 } 469 470 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\ 471 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 472 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 473 SNDRV_PCM_RATE_96000) 474 475 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 476 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 477 478 static const struct snd_soc_dai_ops ssm2602_dai_ops = { 479 .startup = ssm2602_startup, 480 .hw_params = ssm2602_hw_params, 481 .digital_mute = ssm2602_mute, 482 .set_sysclk = ssm2602_set_dai_sysclk, 483 .set_fmt = ssm2602_set_dai_fmt, 484 }; 485 486 static struct snd_soc_dai_driver ssm2602_dai = { 487 .name = "ssm2602-hifi", 488 .playback = { 489 .stream_name = "Playback", 490 .channels_min = 2, 491 .channels_max = 2, 492 .rates = SSM2602_RATES, 493 .formats = SSM2602_FORMATS,}, 494 .capture = { 495 .stream_name = "Capture", 496 .channels_min = 2, 497 .channels_max = 2, 498 .rates = SSM2602_RATES, 499 .formats = SSM2602_FORMATS,}, 500 .ops = &ssm2602_dai_ops, 501 .symmetric_rates = 1, 502 .symmetric_samplebits = 1, 503 }; 504 505 static int ssm2602_suspend(struct snd_soc_codec *codec) 506 { 507 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 508 return 0; 509 } 510 511 static int ssm2602_resume(struct snd_soc_codec *codec) 512 { 513 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 514 515 regcache_sync(ssm2602->regmap); 516 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 517 518 return 0; 519 } 520 521 static int ssm2602_codec_probe(struct snd_soc_codec *codec) 522 { 523 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 524 struct snd_soc_dapm_context *dapm = &codec->dapm; 525 int ret; 526 527 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V, 528 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); 529 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V, 530 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); 531 532 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls, 533 ARRAY_SIZE(ssm2602_snd_controls)); 534 if (ret) 535 return ret; 536 537 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, 538 ARRAY_SIZE(ssm2602_dapm_widgets)); 539 if (ret) 540 return ret; 541 542 return snd_soc_dapm_add_routes(dapm, ssm2602_routes, 543 ARRAY_SIZE(ssm2602_routes)); 544 } 545 546 static int ssm2604_codec_probe(struct snd_soc_codec *codec) 547 { 548 struct snd_soc_dapm_context *dapm = &codec->dapm; 549 int ret; 550 551 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, 552 ARRAY_SIZE(ssm2604_dapm_widgets)); 553 if (ret) 554 return ret; 555 556 return snd_soc_dapm_add_routes(dapm, ssm2604_routes, 557 ARRAY_SIZE(ssm2604_routes)); 558 } 559 560 static int ssm260x_codec_probe(struct snd_soc_codec *codec) 561 { 562 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 563 int ret; 564 565 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0); 566 if (ret < 0) { 567 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 568 return ret; 569 } 570 571 /* set the update bits */ 572 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL, 573 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); 574 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL, 575 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); 576 /*select Line in as default input*/ 577 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC | 578 APANA_ENABLE_MIC_BOOST); 579 580 switch (ssm2602->type) { 581 case SSM2602: 582 ret = ssm2602_codec_probe(codec); 583 break; 584 case SSM2604: 585 ret = ssm2604_codec_probe(codec); 586 break; 587 } 588 589 if (ret) 590 return ret; 591 592 ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 593 594 return 0; 595 } 596 597 /* remove everything here */ 598 static int ssm2602_remove(struct snd_soc_codec *codec) 599 { 600 ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF); 601 return 0; 602 } 603 604 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 605 .probe = ssm260x_codec_probe, 606 .remove = ssm2602_remove, 607 .suspend = ssm2602_suspend, 608 .resume = ssm2602_resume, 609 .set_bias_level = ssm2602_set_bias_level, 610 611 .controls = ssm260x_snd_controls, 612 .num_controls = ARRAY_SIZE(ssm260x_snd_controls), 613 .dapm_widgets = ssm260x_dapm_widgets, 614 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), 615 .dapm_routes = ssm260x_routes, 616 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), 617 }; 618 619 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg) 620 { 621 return reg == SSM2602_RESET; 622 } 623 624 const struct regmap_config ssm2602_regmap_config = { 625 .val_bits = 9, 626 .reg_bits = 7, 627 628 .max_register = SSM2602_RESET, 629 .volatile_reg = ssm2602_register_volatile, 630 631 .cache_type = REGCACHE_RBTREE, 632 .reg_defaults_raw = ssm2602_reg, 633 .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg), 634 }; 635 EXPORT_SYMBOL_GPL(ssm2602_regmap_config); 636 637 int ssm2602_probe(struct device *dev, enum ssm2602_type type, 638 struct regmap *regmap) 639 { 640 struct ssm2602_priv *ssm2602; 641 642 if (IS_ERR(regmap)) 643 return PTR_ERR(regmap); 644 645 ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL); 646 if (ssm2602 == NULL) 647 return -ENOMEM; 648 649 dev_set_drvdata(dev, ssm2602); 650 ssm2602->type = type; 651 ssm2602->regmap = regmap; 652 653 return snd_soc_register_codec(dev, &soc_codec_dev_ssm2602, 654 &ssm2602_dai, 1); 655 } 656 EXPORT_SYMBOL_GPL(ssm2602_probe); 657 658 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); 659 MODULE_AUTHOR("Cliff Cai"); 660 MODULE_LICENSE("GPL"); 661