sound/soc/codecs/ssm2602.c

   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 struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
  58         { .reg = 0x00, .def = 0x0097 },
  59         { .reg = 0x01, .def = 0x0097 },
  60         { .reg = 0x02, .def = 0x0079 },
  61         { .reg = 0x03, .def = 0x0079 },
  62         { .reg = 0x04, .def = 0x000a },
  63         { .reg = 0x05, .def = 0x0008 },
  64         { .reg = 0x06, .def = 0x009f },
  65         { .reg = 0x07, .def = 0x000a },
  66         { .reg = 0x08, .def = 0x0000 },
  67         { .reg = 0x09, .def = 0x0000 }
  68 };
  69
  70
  71 /*Appending several "None"s just for OSS mixer use*/
  72 static const char *ssm2602_input_select[] = {
  73         "Line", "Mic",
  74 };
  75
  76 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
  77
  78 static const struct soc_enum ssm2602_enum[] = {
  79         SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
  80                         ssm2602_input_select),
  81         SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
  82                         ssm2602_deemph),
  83 };
  84
  85 static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
  86         0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
  87         48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
  88 );
  89
  90 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
  91 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
  92
  93 static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
  94 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
  95         ssm260x_inpga_tlv),
  96 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
  97
  98 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
  99 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
 100
 101 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
 102 };
 103
 104 static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
 105 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
 106         0, 127, 0, ssm260x_outmix_tlv),
 107 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
 108         7, 1, 0),
 109 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
 110         ssm260x_sidetone_tlv),
 111
 112 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
 113 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
 114 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
 115 };
 116
 117 /* Output Mixer */
 118 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
 119 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
 120 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
 121 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
 122 };
 123
 124 /* Input mux */
 125 static const struct snd_kcontrol_new ssm2602_input_mux_controls =
 126 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
 127
 128 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
 129 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
 130 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
 131 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
 132
 133 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
 134
 135 SND_SOC_DAPM_OUTPUT("LOUT"),
 136 SND_SOC_DAPM_OUTPUT("ROUT"),
 137 SND_SOC_DAPM_INPUT("RLINEIN"),
 138 SND_SOC_DAPM_INPUT("LLINEIN"),
 139 };
 140
 141 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
 142 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
 143         ssm260x_output_mixer_controls,
 144         ARRAY_SIZE(ssm260x_output_mixer_controls)),
 145
 146 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
 147 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
 148
 149 SND_SOC_DAPM_OUTPUT("LHPOUT"),
 150 SND_SOC_DAPM_OUTPUT("RHPOUT"),
 151 SND_SOC_DAPM_INPUT("MICIN"),
 152 };
 153
 154 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
 155 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
 156         ssm260x_output_mixer_controls,
 157         ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
 158 };
 159
 160 static const struct snd_soc_dapm_route ssm260x_routes[] = {
 161         {"DAC", NULL, "Digital Core Power"},
 162         {"ADC", NULL, "Digital Core Power"},
 163
 164         {"Output Mixer", "Line Bypass Switch", "Line Input"},
 165         {"Output Mixer", "HiFi Playback Switch", "DAC"},
 166
 167         {"ROUT", NULL, "Output Mixer"},
 168         {"LOUT", NULL, "Output Mixer"},
 169
 170         {"Line Input", NULL, "LLINEIN"},
 171         {"Line Input", NULL, "RLINEIN"},
 172 };
 173
 174 static const struct snd_soc_dapm_route ssm2602_routes[] = {
 175         {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
 176
 177         {"RHPOUT", NULL, "Output Mixer"},
 178         {"LHPOUT", NULL, "Output Mixer"},
 179
 180         {"Input Mux", "Line", "Line Input"},
 181         {"Input Mux", "Mic", "Mic Bias"},
 182         {"ADC", NULL, "Input Mux"},
 183
 184         {"Mic Bias", NULL, "MICIN"},
 185 };
 186
 187 static const struct snd_soc_dapm_route ssm2604_routes[] = {
 188         {"ADC", NULL, "Line Input"},
 189 };
 190
 191 static const unsigned int ssm2602_rates_12288000[] = {
 192         8000, 16000, 32000, 48000, 96000,
 193 };
 194
 195 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
 196         .list = ssm2602_rates_12288000,
 197         .count = ARRAY_SIZE(ssm2602_rates_12288000),
 198 };
 199
 200 static const unsigned int ssm2602_rates_11289600[] = {
 201         8000, 11025, 22050, 44100, 88200,
 202 };
 203
 204 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
 205         .list = ssm2602_rates_11289600,
 206         .count = ARRAY_SIZE(ssm2602_rates_11289600),
 207 };
 208
 209 struct ssm2602_coeff {
 210         u32 mclk;
 211         u32 rate;
 212         u8 srate;
 213 };
 214
 215 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
 216
 217 /* codec mclk clock coefficients */
 218 static const struct ssm2602_coeff ssm2602_coeff_table[] = {
 219         /* 48k */
 220         {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
 221         {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
 222         {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
 223
 224         /* 32k */
 225         {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
 226         {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
 227         {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
 228
 229         /* 16k */
 230         {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
 231         {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
 232         {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
 233
 234         /* 8k */
 235         {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
 236         {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
 237         {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
 238         {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
 239         {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
 240
 241         /* 96k */
 242         {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
 243         {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
 244         {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
 245
 246         /* 11.025k */
 247         {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
 248         {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
 249         {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
 250
 251         /* 22.05k */
 252         {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
 253         {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
 254         {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
 255
 256         /* 44.1k */
 257         {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
 258         {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
 259         {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
 260
 261         /* 88.2k */
 262         {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
 263         {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
 264         {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
 265 };
 266
 267 static inline int ssm2602_get_coeff(int mclk, int rate)
 268 {
 269         int i;
 270
 271         for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
 272                 if (ssm2602_coeff_table[i].rate == rate &&
 273                         ssm2602_coeff_table[i].mclk == mclk)
 274                         return ssm2602_coeff_table[i].srate;
 275         }
 276         return -EINVAL;
 277 }
 278
 279 static int ssm2602_hw_params(struct snd_pcm_substream *substream,
 280         struct snd_pcm_hw_params *params,
 281         struct snd_soc_dai *dai)
 282 {
 283         struct snd_soc_codec *codec = dai->codec;
 284         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 285         int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
 286         unsigned int iface;
 287
 288         if (srate < 0)
 289                 return srate;
 290
 291         regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
 292
 293         /* bit size */
 294         switch (params_width(params)) {
 295         case 16:
 296                 iface = 0x0;
 297                 break;
 298         case 20:
 299                 iface = 0x4;
 300                 break;
 301         case 24:
 302                 iface = 0x8;
 303                 break;
 304         case 32:
 305                 iface = 0xc;
 306                 break;
 307         default:
 308                 return -EINVAL;
 309         }
 310         regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
 311                 IFACE_AUDIO_DATA_LEN, iface);
 312         return 0;
 313 }
 314
 315 static int ssm2602_startup(struct snd_pcm_substream *substream,
 316                            struct snd_soc_dai *dai)
 317 {
 318         struct snd_soc_codec *codec = dai->codec;
 319         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 320
 321         if (ssm2602->sysclk_constraints) {
 322                 snd_pcm_hw_constraint_list(substream->runtime, 0,
 323                                    SNDRV_PCM_HW_PARAM_RATE,
 324                                    ssm2602->sysclk_constraints);
 325         }
 326
 327         return 0;
 328 }
 329
 330 static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
 331 {
 332         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec);
 333
 334         if (mute)
 335                 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
 336                                     APDIGI_ENABLE_DAC_MUTE,
 337                                     APDIGI_ENABLE_DAC_MUTE);
 338         else
 339                 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
 340                                     APDIGI_ENABLE_DAC_MUTE, 0);
 341         return 0;
 342 }
 343
 344 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 345                 int clk_id, unsigned int freq, int dir)
 346 {
 347         struct snd_soc_codec *codec = codec_dai->codec;
 348         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 349
 350         if (dir == SND_SOC_CLOCK_IN) {
 351                 if (clk_id != SSM2602_SYSCLK)
 352                         return -EINVAL;
 353
 354                 switch (freq) {
 355                 case 12288000:
 356                 case 18432000:
 357                         ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
 358                         break;
 359                 case 11289600:
 360                 case 16934400:
 361                         ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
 362                         break;
 363                 case 12000000:
 364                         ssm2602->sysclk_constraints = NULL;
 365                         break;
 366                 default:
 367                         return -EINVAL;
 368                 }
 369                 ssm2602->sysclk = freq;
 370         } else {
 371                 unsigned int mask;
 372
 373                 switch (clk_id) {
 374                 case SSM2602_CLK_CLKOUT:
 375                         mask = PWR_CLK_OUT_PDN;
 376                         break;
 377                 case SSM2602_CLK_XTO:
 378                         mask = PWR_OSC_PDN;
 379                         break;
 380                 default:
 381                         return -EINVAL;
 382                 }
 383
 384                 if (freq == 0)
 385                         ssm2602->clk_out_pwr |= mask;
 386                 else
 387                         ssm2602->clk_out_pwr &= ~mask;
 388
 389                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 390                         PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
 391         }
 392
 393         return 0;
 394 }
 395
 396 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
 397                 unsigned int fmt)
 398 {
 399         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec);
 400         unsigned int iface = 0;
 401
 402         /* set master/slave audio interface */
 403         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 404         case SND_SOC_DAIFMT_CBM_CFM:
 405                 iface |= 0x0040;
 406                 break;
 407         case SND_SOC_DAIFMT_CBS_CFS:
 408                 break;
 409         default:
 410                 return -EINVAL;
 411         }
 412
 413         /* interface format */
 414         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 415         case SND_SOC_DAIFMT_I2S:
 416                 iface |= 0x0002;
 417                 break;
 418         case SND_SOC_DAIFMT_RIGHT_J:
 419                 break;
 420         case SND_SOC_DAIFMT_LEFT_J:
 421                 iface |= 0x0001;
 422                 break;
 423         case SND_SOC_DAIFMT_DSP_A:
 424                 iface |= 0x0013;
 425                 break;
 426         case SND_SOC_DAIFMT_DSP_B:
 427                 iface |= 0x0003;
 428                 break;
 429         default:
 430                 return -EINVAL;
 431         }
 432
 433         /* clock inversion */
 434         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 435         case SND_SOC_DAIFMT_NB_NF:
 436                 break;
 437         case SND_SOC_DAIFMT_IB_IF:
 438                 iface |= 0x0090;
 439                 break;
 440         case SND_SOC_DAIFMT_IB_NF:
 441                 iface |= 0x0080;
 442                 break;
 443         case SND_SOC_DAIFMT_NB_IF:
 444                 iface |= 0x0010;
 445                 break;
 446         default:
 447                 return -EINVAL;
 448         }
 449
 450         /* set iface */
 451         regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
 452         return 0;
 453 }
 454
 455 static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
 456                                  enum snd_soc_bias_level level)
 457 {
 458         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 459
 460         switch (level) {
 461         case SND_SOC_BIAS_ON:
 462                 /* vref/mid on, osc and clkout on if enabled */
 463                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 464                         PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
 465                         ssm2602->clk_out_pwr);
 466                 break;
 467         case SND_SOC_BIAS_PREPARE:
 468                 break;
 469         case SND_SOC_BIAS_STANDBY:
 470                 /* everything off except vref/vmid, */
 471                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 472                         PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
 473                         PWR_CLK_OUT_PDN | PWR_OSC_PDN);
 474                 break;
 475         case SND_SOC_BIAS_OFF:
 476                 /* everything off */
 477                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 478                         PWR_POWER_OFF, PWR_POWER_OFF);
 479                 break;
 480
 481         }
 482         return 0;
 483 }
 484
 485 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 486                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 487                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
 488                 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
 489                 SNDRV_PCM_RATE_96000)
 490
 491 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 492                 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 493
 494 static const struct snd_soc_dai_ops ssm2602_dai_ops = {
 495         .startup        = ssm2602_startup,
 496         .hw_params      = ssm2602_hw_params,
 497         .digital_mute   = ssm2602_mute,
 498         .set_sysclk     = ssm2602_set_dai_sysclk,
 499         .set_fmt        = ssm2602_set_dai_fmt,
 500 };
 501
 502 static struct snd_soc_dai_driver ssm2602_dai = {
 503         .name = "ssm2602-hifi",
 504         .playback = {
 505                 .stream_name = "Playback",
 506                 .channels_min = 2,
 507                 .channels_max = 2,
 508                 .rates = SSM2602_RATES,
 509                 .formats = SSM2602_FORMATS,},
 510         .capture = {
 511                 .stream_name = "Capture",
 512                 .channels_min = 2,
 513                 .channels_max = 2,
 514                 .rates = SSM2602_RATES,
 515                 .formats = SSM2602_FORMATS,},
 516         .ops = &ssm2602_dai_ops,
 517         .symmetric_rates = 1,
 518         .symmetric_samplebits = 1,
 519 };
 520
 521 static int ssm2602_resume(struct snd_soc_codec *codec)
 522 {
 523         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 524
 525         regcache_sync(ssm2602->regmap);
 526
 527         return 0;
 528 }
 529
 530 static int ssm2602_codec_probe(struct snd_soc_codec *codec)
 531 {
 532         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 533         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 534         int ret;
 535
 536         regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
 537                             LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
 538         regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
 539                             ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
 540
 541         ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
 542                         ARRAY_SIZE(ssm2602_snd_controls));
 543         if (ret)
 544                 return ret;
 545
 546         ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
 547                         ARRAY_SIZE(ssm2602_dapm_widgets));
 548         if (ret)
 549                 return ret;
 550
 551         return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
 552                         ARRAY_SIZE(ssm2602_routes));
 553 }
 554
 555 static int ssm2604_codec_probe(struct snd_soc_codec *codec)
 556 {
 557         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 558         int ret;
 559
 560         ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
 561                         ARRAY_SIZE(ssm2604_dapm_widgets));
 562         if (ret)
 563                 return ret;
 564
 565         return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
 566                         ARRAY_SIZE(ssm2604_routes));
 567 }
 568
 569 static int ssm260x_codec_probe(struct snd_soc_codec *codec)
 570 {
 571         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 572         int ret;
 573
 574         ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
 575         if (ret < 0) {
 576                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
 577                 return ret;
 578         }
 579
 580         /* set the update bits */
 581         regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
 582                             LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
 583         regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
 584                             RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
 585         /*select Line in as default input*/
 586         regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
 587                         APANA_ENABLE_MIC_BOOST);
 588
 589         switch (ssm2602->type) {
 590         case SSM2602:
 591                 ret = ssm2602_codec_probe(codec);
 592                 break;
 593         case SSM2604:
 594                 ret = ssm2604_codec_probe(codec);
 595                 break;
 596         }
 597
 598         return ret;
 599 }
 600
 601 static const struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
 602         .probe =        ssm260x_codec_probe,
 603         .resume =       ssm2602_resume,
 604         .set_bias_level = ssm2602_set_bias_level,
 605         .suspend_bias_off = true,
 606
 607         .component_driver = {
 608                 .controls               = ssm260x_snd_controls,
 609                 .num_controls           = ARRAY_SIZE(ssm260x_snd_controls),
 610                 .dapm_widgets           = ssm260x_dapm_widgets,
 611                 .num_dapm_widgets       = ARRAY_SIZE(ssm260x_dapm_widgets),
 612                 .dapm_routes            = ssm260x_routes,
 613                 .num_dapm_routes        = ARRAY_SIZE(ssm260x_routes),
 614         },
 615 };
 616
 617 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
 618 {
 619         return reg == SSM2602_RESET;
 620 }
 621
 622 const struct regmap_config ssm2602_regmap_config = {
 623         .val_bits = 9,
 624         .reg_bits = 7,
 625
 626         .max_register = SSM2602_RESET,
 627         .volatile_reg = ssm2602_register_volatile,
 628
 629         .cache_type = REGCACHE_RBTREE,
 630         .reg_defaults = ssm2602_reg,
 631         .num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
 632 };
 633 EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
 634
 635 int ssm2602_probe(struct device *dev, enum ssm2602_type type,
 636         struct regmap *regmap)
 637 {
 638         struct ssm2602_priv *ssm2602;
 639
 640         if (IS_ERR(regmap))
 641                 return PTR_ERR(regmap);
 642
 643         ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
 644         if (ssm2602 == NULL)
 645                 return -ENOMEM;
 646
 647         dev_set_drvdata(dev, ssm2602);
 648         ssm2602->type = type;
 649         ssm2602->regmap = regmap;
 650
 651         return snd_soc_register_codec(dev, &soc_codec_dev_ssm2602,
 652                 &ssm2602_dai, 1);
 653 }
 654 EXPORT_SYMBOL_GPL(ssm2602_probe);
 655
 656 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
 657 MODULE_AUTHOR("Cliff Cai");
 658 MODULE_LICENSE("GPL");