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 */ 41struct 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 */ 57static 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*/ 65static const char *ssm2602_input_select[] = { 66 "Line", "Mic", 67}; 68 69static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 70 71static 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 78static 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 84static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0); 85static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0); 86 87static const struct snd_kcontrol_new ssm260x_snd_controls[] = { 88SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0, 89 ssm260x_inpga_tlv), 90SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), 91 92SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), 93SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), 94 95SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), 96}; 97 98static const struct snd_kcontrol_new ssm2602_snd_controls[] = { 99SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 100 0, 127, 0, ssm260x_outmix_tlv), 101SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 102 7, 1, 0), 103SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1, 104 ssm260x_sidetone_tlv), 105 106SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), 107SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), 108SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), 109}; 110 111/* Output Mixer */ 112static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { 113SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), 114SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), 115SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), 116}; 117 118/* Input mux */ 119static const struct snd_kcontrol_new ssm2602_input_mux_controls = 120SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]); 121 122static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { 123SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), 124SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), 125SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), 126 127SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0), 128 129SND_SOC_DAPM_OUTPUT("LOUT"), 130SND_SOC_DAPM_OUTPUT("ROUT"), 131SND_SOC_DAPM_INPUT("RLINEIN"), 132SND_SOC_DAPM_INPUT("LLINEIN"), 133}; 134 135static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { 136SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, 137 ssm260x_output_mixer_controls, 138 ARRAY_SIZE(ssm260x_output_mixer_controls)), 139 140SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), 141SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), 142 143SND_SOC_DAPM_OUTPUT("LHPOUT"), 144SND_SOC_DAPM_OUTPUT("RHPOUT"), 145SND_SOC_DAPM_INPUT("MICIN"), 146}; 147 148static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { 149SND_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 154static 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 168static 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 181static const struct snd_soc_dapm_route ssm2604_routes[] = { 182 {"ADC", NULL, "Line Input"}, 183}; 184 185static const unsigned int ssm2602_rates_12288000[] = { 186 8000, 16000, 32000, 48000, 96000, 187}; 188 189static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = { 190 .list = ssm2602_rates_12288000, 191 .count = ARRAY_SIZE(ssm2602_rates_12288000), 192}; 193 194static const unsigned int ssm2602_rates_11289600[] = { 195 8000, 11025, 22050, 44100, 88200, 196}; 197 198static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = { 199 .list = ssm2602_rates_11289600, 200 .count = ARRAY_SIZE(ssm2602_rates_11289600), 201}; 202 203struct 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 */ 212static 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 /* 11.025k */ 241 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)}, 242 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)}, 243 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)}, 244 245 /* 22.05k */ 246 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)}, 247 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)}, 248 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)}, 249 250 /* 44.1k */ 251 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)}, 252 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)}, 253 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)}, 254 255 /* 88.2k */ 256 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)}, 257 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)}, 258 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)}, 259}; 260 261static inline int ssm2602_get_coeff(int mclk, int rate) 262{ 263 int i; 264 265 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) { 266 if (ssm2602_coeff_table[i].rate == rate && 267 ssm2602_coeff_table[i].mclk == mclk) 268 return ssm2602_coeff_table[i].srate; 269 } 270 return -EINVAL; 271} 272 273static int ssm2602_hw_params(struct snd_pcm_substream *substream, 274 struct snd_pcm_hw_params *params, 275 struct snd_soc_dai *dai) 276{ 277 struct snd_soc_codec *codec = dai->codec; 278 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 279 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params)); 280 unsigned int iface; 281 282 if (srate < 0) 283 return srate; 284 285 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate); 286 287 /* bit size */ 288 switch (params_width(params)) { 289 case 16: 290 iface = 0x0; 291 break; 292 case 20: 293 iface = 0x4; 294 break; 295 case 24: 296 iface = 0x8; 297 break; 298 case 32: 299 iface = 0xc; 300 break; 301 default: 302 return -EINVAL; 303 } 304 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE, 305 IFACE_AUDIO_DATA_LEN, iface); 306 return 0; 307} 308 309static int ssm2602_startup(struct snd_pcm_substream *substream, 310 struct snd_soc_dai *dai) 311{ 312 struct snd_soc_codec *codec = dai->codec; 313 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 314 315 if (ssm2602->sysclk_constraints) { 316 snd_pcm_hw_constraint_list(substream->runtime, 0, 317 SNDRV_PCM_HW_PARAM_RATE, 318 ssm2602->sysclk_constraints); 319 } 320 321 return 0; 322} 323 324static int ssm2602_mute(struct snd_soc_dai *dai, int mute) 325{ 326 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec); 327 328 if (mute) 329 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 330 APDIGI_ENABLE_DAC_MUTE, 331 APDIGI_ENABLE_DAC_MUTE); 332 else 333 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI, 334 APDIGI_ENABLE_DAC_MUTE, 0); 335 return 0; 336} 337 338static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 339 int clk_id, unsigned int freq, int dir) 340{ 341 struct snd_soc_codec *codec = codec_dai->codec; 342 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 343 344 if (dir == SND_SOC_CLOCK_IN) { 345 if (clk_id != SSM2602_SYSCLK) 346 return -EINVAL; 347 348 switch (freq) { 349 case 12288000: 350 case 18432000: 351 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000; 352 break; 353 case 11289600: 354 case 16934400: 355 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600; 356 break; 357 case 12000000: 358 ssm2602->sysclk_constraints = NULL; 359 break; 360 default: 361 return -EINVAL; 362 } 363 ssm2602->sysclk = freq; 364 } else { 365 unsigned int mask; 366 367 switch (clk_id) { 368 case SSM2602_CLK_CLKOUT: 369 mask = PWR_CLK_OUT_PDN; 370 break; 371 case SSM2602_CLK_XTO: 372 mask = PWR_OSC_PDN; 373 break; 374 default: 375 return -EINVAL; 376 } 377 378 if (freq == 0) 379 ssm2602->clk_out_pwr |= mask; 380 else 381 ssm2602->clk_out_pwr &= ~mask; 382 383 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 384 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr); 385 } 386 387 return 0; 388} 389 390static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, 391 unsigned int fmt) 392{ 393 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec); 394 unsigned int iface = 0; 395 396 /* set master/slave audio interface */ 397 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 398 case SND_SOC_DAIFMT_CBM_CFM: 399 iface |= 0x0040; 400 break; 401 case SND_SOC_DAIFMT_CBS_CFS: 402 break; 403 default: 404 return -EINVAL; 405 } 406 407 /* interface format */ 408 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 409 case SND_SOC_DAIFMT_I2S: 410 iface |= 0x0002; 411 break; 412 case SND_SOC_DAIFMT_RIGHT_J: 413 break; 414 case SND_SOC_DAIFMT_LEFT_J: 415 iface |= 0x0001; 416 break; 417 case SND_SOC_DAIFMT_DSP_A: 418 iface |= 0x0013; 419 break; 420 case SND_SOC_DAIFMT_DSP_B: 421 iface |= 0x0003; 422 break; 423 default: 424 return -EINVAL; 425 } 426 427 /* clock inversion */ 428 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 429 case SND_SOC_DAIFMT_NB_NF: 430 break; 431 case SND_SOC_DAIFMT_IB_IF: 432 iface |= 0x0090; 433 break; 434 case SND_SOC_DAIFMT_IB_NF: 435 iface |= 0x0080; 436 break; 437 case SND_SOC_DAIFMT_NB_IF: 438 iface |= 0x0010; 439 break; 440 default: 441 return -EINVAL; 442 } 443 444 /* set iface */ 445 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface); 446 return 0; 447} 448 449static int ssm2602_set_bias_level(struct snd_soc_codec *codec, 450 enum snd_soc_bias_level level) 451{ 452 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 453 454 switch (level) { 455 case SND_SOC_BIAS_ON: 456 /* vref/mid on, osc and clkout on if enabled */ 457 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 458 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 459 ssm2602->clk_out_pwr); 460 break; 461 case SND_SOC_BIAS_PREPARE: 462 break; 463 case SND_SOC_BIAS_STANDBY: 464 /* everything off except vref/vmid, */ 465 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 466 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN, 467 PWR_CLK_OUT_PDN | PWR_OSC_PDN); 468 break; 469 case SND_SOC_BIAS_OFF: 470 /* everything off */ 471 regmap_update_bits(ssm2602->regmap, SSM2602_PWR, 472 PWR_POWER_OFF, PWR_POWER_OFF); 473 break; 474 475 } 476 codec->dapm.bias_level = level; 477 return 0; 478} 479 480#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 481 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 482 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 483 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ 484 SNDRV_PCM_RATE_96000) 485 486#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 487 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) 488 489static const struct snd_soc_dai_ops ssm2602_dai_ops = { 490 .startup = ssm2602_startup, 491 .hw_params = ssm2602_hw_params, 492 .digital_mute = ssm2602_mute, 493 .set_sysclk = ssm2602_set_dai_sysclk, 494 .set_fmt = ssm2602_set_dai_fmt, 495}; 496 497static struct snd_soc_dai_driver ssm2602_dai = { 498 .name = "ssm2602-hifi", 499 .playback = { 500 .stream_name = "Playback", 501 .channels_min = 2, 502 .channels_max = 2, 503 .rates = SSM2602_RATES, 504 .formats = SSM2602_FORMATS,}, 505 .capture = { 506 .stream_name = "Capture", 507 .channels_min = 2, 508 .channels_max = 2, 509 .rates = SSM2602_RATES, 510 .formats = SSM2602_FORMATS,}, 511 .ops = &ssm2602_dai_ops, 512 .symmetric_rates = 1, 513 .symmetric_samplebits = 1, 514}; 515 516static int ssm2602_resume(struct snd_soc_codec *codec) 517{ 518 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 519 520 regcache_sync(ssm2602->regmap); 521 522 return 0; 523} 524 525static int ssm2602_codec_probe(struct snd_soc_codec *codec) 526{ 527 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 528 struct snd_soc_dapm_context *dapm = &codec->dapm; 529 int ret; 530 531 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V, 532 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); 533 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V, 534 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH); 535 536 ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls, 537 ARRAY_SIZE(ssm2602_snd_controls)); 538 if (ret) 539 return ret; 540 541 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, 542 ARRAY_SIZE(ssm2602_dapm_widgets)); 543 if (ret) 544 return ret; 545 546 return snd_soc_dapm_add_routes(dapm, ssm2602_routes, 547 ARRAY_SIZE(ssm2602_routes)); 548} 549 550static int ssm2604_codec_probe(struct snd_soc_codec *codec) 551{ 552 struct snd_soc_dapm_context *dapm = &codec->dapm; 553 int ret; 554 555 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, 556 ARRAY_SIZE(ssm2604_dapm_widgets)); 557 if (ret) 558 return ret; 559 560 return snd_soc_dapm_add_routes(dapm, ssm2604_routes, 561 ARRAY_SIZE(ssm2604_routes)); 562} 563 564static int ssm260x_codec_probe(struct snd_soc_codec *codec) 565{ 566 struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); 567 int ret; 568 569 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0); 570 if (ret < 0) { 571 dev_err(codec->dev, "Failed to issue reset: %d\n", ret); 572 return ret; 573 } 574 575 /* set the update bits */ 576 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL, 577 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); 578 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL, 579 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); 580 /*select Line in as default input*/ 581 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC | 582 APANA_ENABLE_MIC_BOOST); 583 584 switch (ssm2602->type) { 585 case SSM2602: 586 ret = ssm2602_codec_probe(codec); 587 break; 588 case SSM2604: 589 ret = ssm2604_codec_probe(codec); 590 break; 591 } 592 593 return ret; 594} 595 596static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 597 .probe = ssm260x_codec_probe, 598 .resume = ssm2602_resume, 599 .set_bias_level = ssm2602_set_bias_level, 600 .suspend_bias_off = true, 601 602 .controls = ssm260x_snd_controls, 603 .num_controls = ARRAY_SIZE(ssm260x_snd_controls), 604 .dapm_widgets = ssm260x_dapm_widgets, 605 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), 606 .dapm_routes = ssm260x_routes, 607 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), 608}; 609 610static bool ssm2602_register_volatile(struct device *dev, unsigned int reg) 611{ 612 return reg == SSM2602_RESET; 613} 614 615const 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}; 626EXPORT_SYMBOL_GPL(ssm2602_regmap_config); 627 628int 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} 647EXPORT_SYMBOL_GPL(ssm2602_probe); 648 649MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver"); 650MODULE_AUTHOR("Cliff Cai"); 651MODULE_LICENSE("GPL"); 652