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 DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv, 79 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0), 80 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0) 81 ); 82 83 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0); 84 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0); 85 86 static const struct snd_kcontrol_new ssm260x_snd_controls[] = { 87 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0, 88 ssm260x_inpga_tlv), 89 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), 90 91 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), 92 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), 93 94 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), 95 }; 96 97 static const struct snd_kcontrol_new ssm2602_snd_controls[] = { 98 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 99 0, 127, 0, ssm260x_outmix_tlv), 100 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 101 7, 1, 0), 102 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1, 103 ssm260x_sidetone_tlv), 104 105 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), 106 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), 107 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), 108 }; 109 110 /* Output Mixer */ 111 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { 112 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), 113 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), 114 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), 115 }; 116 117 /* Input mux */ 118 static const struct snd_kcontrol_new ssm2602_input_mux_controls = 119 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]); 120 121 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { 122 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), 123 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), 124 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), 125 126 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0), 127 128 SND_SOC_DAPM_OUTPUT("LOUT"), 129 SND_SOC_DAPM_OUTPUT("ROUT"), 130 SND_SOC_DAPM_INPUT("RLINEIN"), 131 SND_SOC_DAPM_INPUT("LLINEIN"), 132 }; 133 134 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { 135 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, 136 ssm260x_output_mixer_controls, 137 ARRAY_SIZE(ssm260x_output_mixer_controls)), 138 139 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), 140 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), 141 142 SND_SOC_DAPM_OUTPUT("LHPOUT"), 143 SND_SOC_DAPM_OUTPUT("RHPOUT"), 144 SND_SOC_DAPM_INPUT("MICIN"), 145 }; 146 147 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { 148 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, 149 ssm260x_output_mixer_controls, 150 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */ 151 }; 152 153 static const struct snd_soc_dapm_route ssm260x_routes[] = { 154 {"DAC", NULL, "Digital Core Power"}, 155 {"ADC", NULL, "Digital Core Power"}, 156 157 {"Output Mixer", "Line Bypass Switch", "Line Input"}, 158 {"Output Mixer", "HiFi Playback Switch", "DAC"}, 159 160 {"ROUT", NULL, "Output Mixer"}, 161 {"LOUT", NULL, "Output Mixer"}, 162 163 {"Line Input", NULL, "LLINEIN"}, 164 {"Line Input", NULL, "RLINEIN"}, 165 }; 166 167 static const struct snd_soc_dapm_route ssm2602_routes[] = { 168 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, 169 170 {"RHPOUT", NULL, "Output Mixer"}, 171 {"LHPOUT", NULL, "Output Mixer"}, 172 173 {"Input Mux", "Line", "Line Input"}, 174 {"Input Mux", "Mic", "Mic Bias"}, 175 {"ADC", NULL, "Input Mux"}, 176 177 {"Mic Bias", NULL, "MICIN"}, 178 }; 179 180 static const struct snd_soc_dapm_route ssm2604_routes[] = { 181 {"ADC", NULL, "Line Input"}, 182 }; 183 184 static const unsigned int ssm2602_rates_12288000[] = { 185 8000, 16000, 32000, 48000, 96000, 186 }; 187 188 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = { 189 .list = ssm2602_rates_12288000, 190 .count = ARRAY_SIZE(ssm2602_rates_12288000), 191 }; 192 193 static const unsigned int ssm2602_rates_11289600[] = { 194 8000, 11025, 22050, 44100, 88200, 195 }; 196 197 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = { 198 .list = ssm2602_rates_11289600, 199 .count = ARRAY_SIZE(ssm2602_rates_11289600), 200 }; 201 202 struct ssm2602_coeff { 203 u32 mclk; 204 u32 rate; 205 u8 srate; 206 }; 207 208 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb)) 209 210 /* codec mclk clock coefficients */ 211 static const struct ssm2602_coeff ssm2602_coeff_table[] = { 212 /* 48k */ 213 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)}, 214 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)}, 215 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)}, 216 217 /* 32k */ 218 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)}, 219 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)}, 220 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)}, 221 222 /* 16k */ 223 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)}, 224 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)}, 225 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)}, 226 227 /* 8k */ 228 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)}, 229 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)}, 230 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)}, 231 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)}, 232 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)}, 233 234 /* 96k */ 235 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)}, 236 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)}, 237 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)}, 238 239 /* 11.025k */ 240 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)}, 241 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)}, 242 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)}, 243 244 /* 22.05k */ 245 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)}, 246 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)}, 247 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)}, 248 249 /* 44.1k */ 250 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)}, 251 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)}, 252 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)}, 253 254 /* 88.2k */ 255 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)}, 256 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)}, 257 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)}, 258 }; 259 260 static inline int ssm2602_get_coeff(int mclk, int rate) 261 { 262 int i; 263 264 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) { 265 if (ssm2602_coeff_table[i].rate == rate && 266 ssm2602_coeff_table[i].mclk == mclk) 267 return ssm2602_coeff_table[i].srate; 268 } 269 return -EINVAL; 270 } 271 272 static int ssm2602_hw_params(struct snd_pcm_substream *substream, 273 struct snd_pcm_hw_params *params, 274 struct snd_soc_dai *dai) 275 { 276 struct snd_soc_codec *codec = dai->codec; 277 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 278 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); 279 unsigned int iface; 280 281 if (srate < 0) 282 return srate; 283 284 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate); 285 286 /* bit size */ 287 switch (params_width(params)) { 288 case 16: 289 iface = 0x0; 290 break; 291 case 20: 292 iface = 0x4; 293 break; 294 case 24: 295 iface = 0x8; 296 break; 297 case 32: 298 iface = 0xc; 299 break; 300 default: 301 return -EINVAL; 302 } 303 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE, 304 IFACE_AUDIO_DATA_LEN, iface); 305 return 0; 306 } 307 308 static int ssm2602_startup(struct snd_pcm_substream *substream, 309 struct snd_soc_dai *dai) 310 { 311 struct snd_soc_codec *codec = dai->codec; 312 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 313 314 if (ssm2602->sysclk_constraints) { 315 snd_pcm_hw_constraint_list(substream->runtime, 0, 316 SNDRV_PCM_HW_PARAM_RATE, 317 ssm2602->sysclk_constraints); 318 } 319 320 return 0; 321 } 322 323 static int ssm2602_mute(struct snd_soc_dai *dai, int mute) 324 { 325 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec); 326 327 if (mute) 328 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 329 APDIGI_ENABLE_DAC_MUTE, 330 APDIGI_ENABLE_DAC_MUTE); 331 else 332 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 333 APDIGI_ENABLE_DAC_MUTE, 0); 334 return 0; 335 } 336 337 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 338 int clk_id, unsigned int freq, int dir) 339 { 340 struct snd_soc_codec *codec = codec_dai->codec; 341 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 342 343 if (dir == SND_SOC_CLOCK_IN) { 344 if (clk_id != SSM2602_SYSCLK) 345 return -EINVAL; 346 347 switch (freq) { 348 case 12288000: 349 case 18432000: 350 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000; 351 break; 352 case 11289600: 353 case 16934400: 354 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600; 355 break; 356 case 12000000: 357 ssm2602->sysclk_constraints = NULL; 358 break; 359 default: 360 return -EINVAL; 361 } 362 ssm2602->sysclk = freq; 363 } else { 364 unsigned int mask; 365 366 switch (clk_id) { 367 case SSM2602_CLK_CLKOUT: 368 mask = PWR_CLK_OUT_PDN; 369 break; 370 case SSM2602_CLK_XTO: 371 mask = PWR_OSC_PDN; 372 break; 373 default: 374 return -EINVAL; 375 } 376 377 if (freq == 0) 378 ssm2602->clk_out_pwr |= mask; 379 else 380 ssm2602->clk_out_pwr &= ~mask; 381 382 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 383 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); 384 } 385 386 return 0; 387 } 388 389 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, 390 unsigned int fmt) 391 { 392 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec); 393 unsigned int iface = 0; 394 395 /* set master/slave audio interface */ 396 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 397 case SND_SOC_DAIFMT_CBM_CFM: 398 iface |= 0x0040; 399 break; 400 case SND_SOC_DAIFMT_CBS_CFS: 401 break; 402 default: 403 return -EINVAL; 404 } 405 406 /* interface format */ 407 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 408 case SND_SOC_DAIFMT_I2S: 409 iface |= 0x0002; 410 break; 411 case SND_SOC_DAIFMT_RIGHT_J: 412 break; 413 case SND_SOC_DAIFMT_LEFT_J: 414 iface |= 0x0001; 415 break; 416 case SND_SOC_DAIFMT_DSP_A: 417 iface |= 0x0013; 418 break; 419 case SND_SOC_DAIFMT_DSP_B: 420 iface |= 0x0003; 421 break; 422 default: 423 return -EINVAL; 424 } 425 426 /* clock inversion */ 427 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 428 case SND_SOC_DAIFMT_NB_NF: 429 break; 430 case SND_SOC_DAIFMT_IB_IF: 431 iface |= 0x0090; 432 break; 433 case SND_SOC_DAIFMT_IB_NF: 434 iface |= 0x0080; 435 break; 436 case SND_SOC_DAIFMT_NB_IF: 437 iface |= 0x0010; 438 break; 439 default: 440 return -EINVAL; 441 } 442 443 /* set iface */ 444 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface); 445 return 0; 446 } 447 448 static int ssm2602_set_bias_level(struct snd_soc_codec *codec, 449 enum snd_soc_bias_level level) 450 { 451 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 452 453 switch (level) { 454 case SND_SOC_BIAS_ON: 455 /* vref/mid on, osc and clkout on if enabled */ 456 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 457 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 458 ssm2602->clk_out_pwr); 459 break; 460 case SND_SOC_BIAS_PREPARE: 461 break; 462 case SND_SOC_BIAS_STANDBY: 463 /* everything off except vref/vmid, */ 464 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 465 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 466 PWR_CLK_OUT_PDN | PWR_OSC_PDN); 467 break; 468 case SND_SOC_BIAS_OFF: 469 /* everything off */ 470 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 471 PWR_POWER_OFF, PWR_POWER_OFF); 472 break; 473 474 } 475 return 0; 476 } 477 478 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 479 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 480 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 481 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 482 SNDRV_PCM_RATE_96000) 483 484 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 485 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 486 487 static const struct snd_soc_dai_ops ssm2602_dai_ops = { 488 .startup = ssm2602_startup, 489 .hw_params = ssm2602_hw_params, 490 .digital_mute = ssm2602_mute, 491 .set_sysclk = ssm2602_set_dai_sysclk, 492 .set_fmt = ssm2602_set_dai_fmt, 493 }; 494 495 static struct snd_soc_dai_driver ssm2602_dai = { 496 .name = "ssm2602-hifi", 497 .playback = { 498 .stream_name = "Playback", 499 .channels_min = 2, 500 .channels_max = 2, 501 .rates = SSM2602_RATES, 502 .formats = SSM2602_FORMATS,}, 503 .capture = { 504 .stream_name = "Capture", 505 .channels_min = 2, 506 .channels_max = 2, 507 .rates = SSM2602_RATES, 508 .formats = SSM2602_FORMATS,}, 509 .ops = &ssm2602_dai_ops, 510 .symmetric_rates = 1, 511 .symmetric_samplebits = 1, 512 }; 513 514 static int ssm2602_resume(struct snd_soc_codec *codec) 515 { 516 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 517 518 regcache_sync(ssm2602->regmap); 519 520 return 0; 521 } 522 523 static int ssm2602_codec_probe(struct snd_soc_codec *codec) 524 { 525 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); 526 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 527 int ret; 528 529 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V, 530 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); 531 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V, 532 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); 533 534 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls, 535 ARRAY_SIZE(ssm2602_snd_controls)); 536 if (ret) 537 return ret; 538 539 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, 540 ARRAY_SIZE(ssm2602_dapm_widgets)); 541 if (ret) 542 return ret; 543 544 return snd_soc_dapm_add_routes(dapm, ssm2602_routes, 545 ARRAY_SIZE(ssm2602_routes)); 546 } 547 548 static int ssm2604_codec_probe(struct snd_soc_codec *codec) 549 { 550 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); 551 int ret; 552 553 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, 554 ARRAY_SIZE(ssm2604_dapm_widgets)); 555 if (ret) 556 return ret; 557 558 return snd_soc_dapm_add_routes(dapm, ssm2604_routes, 559 ARRAY_SIZE(ssm2604_routes)); 560 } 561 562 static int ssm260x_codec_probe(struct snd_soc_codec *codec) 563 { 564 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 565 int ret; 566 567 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0); 568 if (ret < 0) { 569 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 570 return ret; 571 } 572 573 /* set the update bits */ 574 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL, 575 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); 576 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL, 577 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); 578 /*select Line in as default input*/ 579 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC | 580 APANA_ENABLE_MIC_BOOST); 581 582 switch (ssm2602->type) { 583 case SSM2602: 584 ret = ssm2602_codec_probe(codec); 585 break; 586 case SSM2604: 587 ret = ssm2604_codec_probe(codec); 588 break; 589 } 590 591 return ret; 592 } 593 594 static const struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 595 .probe = ssm260x_codec_probe, 596 .resume = ssm2602_resume, 597 .set_bias_level = ssm2602_set_bias_level, 598 .suspend_bias_off = true, 599 600 .component_driver = { 601 .controls = ssm260x_snd_controls, 602 .num_controls = ARRAY_SIZE(ssm260x_snd_controls), 603 .dapm_widgets = ssm260x_dapm_widgets, 604 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), 605 .dapm_routes = ssm260x_routes, 606 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), 607 }, 608 }; 609 610 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg) 611 { 612 return reg == SSM2602_RESET; 613 } 614 615 const struct regmap_config ssm2602_regmap_config = { 616 .val_bits = 9, 617 .reg_bits = 7, 618 619 .max_register = SSM2602_RESET, 620 .volatile_reg = ssm2602_register_volatile, 621 622 .cache_type = REGCACHE_RBTREE, 623 .reg_defaults_raw = ssm2602_reg, 624 .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg), 625 }; 626 EXPORT_SYMBOL_GPL(ssm2602_regmap_config); 627 628 int ssm2602_probe(struct device *dev, enum ssm2602_type type, 629 struct regmap *regmap) 630 { 631 struct ssm2602_priv *ssm2602; 632 633 if (IS_ERR(regmap)) 634 return PTR_ERR(regmap); 635 636 ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL); 637 if (ssm2602 == NULL) 638 return -ENOMEM; 639 640 dev_set_drvdata(dev, ssm2602); 641 ssm2602->type = type; 642 ssm2602->regmap = regmap; 643 644 return snd_soc_register_codec(dev, &soc_codec_dev_ssm2602, 645 &ssm2602_dai, 1); 646 } 647 EXPORT_SYMBOL_GPL(ssm2602_probe); 648 649 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); 650 MODULE_AUTHOR("Cliff Cai"); 651 MODULE_LICENSE("GPL"); 652