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/moduleparam.h>
  31 #include <linux/init.h>
  32 #include <linux/delay.h>
  33 #include <linux/pm.h>
  34 #include <linux/i2c.h>
  35 #include <linux/spi/spi.h>
  36 #include <linux/platform_device.h>
  37 #include <linux/slab.h>
  38 #include <sound/core.h>
  39 #include <sound/pcm.h>
  40 #include <sound/pcm_params.h>
  41 #include <sound/soc.h>
  42 #include <sound/initval.h>
  43 #include <sound/tlv.h>
  44
  45 #include "ssm2602.h"
  46
  47 #define SSM2602_VERSION "0.1"
  48
  49 enum ssm2602_type {
  50         SSM2602,
  51         SSM2604,
  52 };
  53
  54 /* codec private data */
  55 struct ssm2602_priv {
  56         unsigned int sysclk;
  57         enum snd_soc_control_type control_type;
  58         struct snd_pcm_substream *master_substream;
  59         struct snd_pcm_substream *slave_substream;
  60
  61         enum ssm2602_type type;
  62         unsigned int clk_out_pwr;
  63 };
  64
  65 /*
  66  * ssm2602 register cache
  67  * We can't read the ssm2602 register space when we are
  68  * using 2 wire for device control, so we cache them instead.
  69  * There is no point in caching the reset register
  70  */
  71 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
  72         0x0097, 0x0097, 0x0079, 0x0079,
  73         0x000a, 0x0008, 0x009f, 0x000a,
  74         0x0000, 0x0000
  75 };
  76
  77 #define ssm2602_reset(c)        snd_soc_write(c, SSM2602_RESET, 0)
  78
  79 /*Appending several "None"s just for OSS mixer use*/
  80 static const char *ssm2602_input_select[] = {
  81         "Line", "Mic", "None", "None", "None",
  82         "None", "None", "None",
  83 };
  84
  85 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
  86
  87 static const struct soc_enum ssm2602_enum[] = {
  88         SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
  89         SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
  90 };
  91
  92 static const unsigned int ssm260x_outmix_tlv[] = {
  93         TLV_DB_RANGE_HEAD(2),
  94         0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
  95         48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
  96 };
  97
  98 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
  99 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
 100
 101 static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
 102 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
 103         ssm260x_inpga_tlv),
 104 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
 105
 106 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
 107 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
 108
 109 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
 110 };
 111
 112 static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
 113 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
 114         0, 127, 0, ssm260x_outmix_tlv),
 115 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
 116         7, 1, 0),
 117 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
 118         ssm260x_sidetone_tlv),
 119
 120 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
 121 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
 122 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
 123 };
 124
 125 /* Output Mixer */
 126 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
 127 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
 128 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
 129 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
 130 };
 131
 132 /* Input mux */
 133 static const struct snd_kcontrol_new ssm2602_input_mux_controls =
 134 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
 135
 136 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
 137 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
 138 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
 139 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
 140
 141 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
 142
 143 SND_SOC_DAPM_OUTPUT("LOUT"),
 144 SND_SOC_DAPM_OUTPUT("ROUT"),
 145 SND_SOC_DAPM_INPUT("RLINEIN"),
 146 SND_SOC_DAPM_INPUT("LLINEIN"),
 147 };
 148
 149 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
 150 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
 151         ssm260x_output_mixer_controls,
 152         ARRAY_SIZE(ssm260x_output_mixer_controls)),
 153
 154 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
 155 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
 156
 157 SND_SOC_DAPM_OUTPUT("LHPOUT"),
 158 SND_SOC_DAPM_OUTPUT("RHPOUT"),
 159 SND_SOC_DAPM_INPUT("MICIN"),
 160 };
 161
 162 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
 163 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
 164         ssm260x_output_mixer_controls,
 165         ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
 166 };
 167
 168 static const struct snd_soc_dapm_route ssm260x_routes[] = {
 169         {"DAC", NULL, "Digital Core Power"},
 170         {"ADC", NULL, "Digital Core Power"},
 171
 172         {"Output Mixer", "Line Bypass Switch", "Line Input"},
 173         {"Output Mixer", "HiFi Playback Switch", "DAC"},
 174
 175         {"ROUT", NULL, "Output Mixer"},
 176         {"LOUT", NULL, "Output Mixer"},
 177
 178         {"Line Input", NULL, "LLINEIN"},
 179         {"Line Input", NULL, "RLINEIN"},
 180 };
 181
 182 static const struct snd_soc_dapm_route ssm2602_routes[] = {
 183         {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
 184
 185         {"RHPOUT", NULL, "Output Mixer"},
 186         {"LHPOUT", NULL, "Output Mixer"},
 187
 188         {"Input Mux", "Line", "Line Input"},
 189         {"Input Mux", "Mic", "Mic Bias"},
 190         {"ADC", NULL, "Input Mux"},
 191
 192         {"Mic Bias", NULL, "MICIN"},
 193 };
 194
 195 static const struct snd_soc_dapm_route ssm2604_routes[] = {
 196         {"ADC", NULL, "Line Input"},
 197 };
 198
 199 struct ssm2602_coeff {
 200         u32 mclk;
 201         u32 rate;
 202         u8 srate;
 203 };
 204
 205 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
 206
 207 /* codec mclk clock coefficients */
 208 static const struct ssm2602_coeff ssm2602_coeff_table[] = {
 209         /* 48k */
 210         {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
 211         {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
 212         {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
 213
 214         /* 32k */
 215         {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
 216         {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
 217         {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
 218
 219         /* 8k */
 220         {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
 221         {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
 222         {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
 223         {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
 224         {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
 225
 226         /* 96k */
 227         {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
 228         {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
 229         {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
 230
 231         /* 44.1k */
 232         {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
 233         {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
 234         {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
 235
 236         /* 88.2k */
 237         {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
 238         {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
 239         {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
 240 };
 241
 242 static inline int ssm2602_get_coeff(int mclk, int rate)
 243 {
 244         int i;
 245
 246         for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
 247                 if (ssm2602_coeff_table[i].rate == rate &&
 248                         ssm2602_coeff_table[i].mclk == mclk)
 249                         return ssm2602_coeff_table[i].srate;
 250         }
 251         return -EINVAL;
 252 }
 253
 254 static int ssm2602_hw_params(struct snd_pcm_substream *substream,
 255         struct snd_pcm_hw_params *params,
 256         struct snd_soc_dai *dai)
 257 {
 258         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 259         struct snd_soc_codec *codec = rtd->codec;
 260         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 261         u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
 262         int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
 263
 264         if (substream == ssm2602->slave_substream) {
 265                 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
 266                 return 0;
 267         }
 268
 269         if (srate < 0)
 270                 return srate;
 271
 272         snd_soc_write(codec, SSM2602_SRATE, srate);
 273
 274         /* bit size */
 275         switch (params_format(params)) {
 276         case SNDRV_PCM_FORMAT_S16_LE:
 277                 break;
 278         case SNDRV_PCM_FORMAT_S20_3LE:
 279                 iface |= 0x0004;
 280                 break;
 281         case SNDRV_PCM_FORMAT_S24_LE:
 282                 iface |= 0x0008;
 283                 break;
 284         case SNDRV_PCM_FORMAT_S32_LE:
 285                 iface |= 0x000c;
 286                 break;
 287         }
 288         snd_soc_write(codec, SSM2602_IFACE, iface);
 289         return 0;
 290 }
 291
 292 static int ssm2602_startup(struct snd_pcm_substream *substream,
 293                            struct snd_soc_dai *dai)
 294 {
 295         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 296         struct snd_soc_codec *codec = rtd->codec;
 297         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 298         struct snd_pcm_runtime *master_runtime;
 299
 300         /* The DAI has shared clocks so if we already have a playback or
 301          * capture going then constrain this substream to match it.
 302          * TODO: the ssm2602 allows pairs of non-matching PB/REC rates
 303          */
 304         if (ssm2602->master_substream) {
 305                 master_runtime = ssm2602->master_substream->runtime;
 306                 dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n",
 307                         master_runtime->sample_bits,
 308                         master_runtime->rate);
 309
 310                 if (master_runtime->rate != 0)
 311                         snd_pcm_hw_constraint_minmax(substream->runtime,
 312                                                      SNDRV_PCM_HW_PARAM_RATE,
 313                                                      master_runtime->rate,
 314                                                      master_runtime->rate);
 315
 316                 if (master_runtime->sample_bits != 0)
 317                         snd_pcm_hw_constraint_minmax(substream->runtime,
 318                                                      SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
 319                                                      master_runtime->sample_bits,
 320                                                      master_runtime->sample_bits);
 321
 322                 ssm2602->slave_substream = substream;
 323         } else
 324                 ssm2602->master_substream = substream;
 325
 326         return 0;
 327 }
 328
 329 static void ssm2602_shutdown(struct snd_pcm_substream *substream,
 330                              struct snd_soc_dai *dai)
 331 {
 332         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 333         struct snd_soc_codec *codec = rtd->codec;
 334         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 335
 336         if (ssm2602->master_substream == substream)
 337                 ssm2602->master_substream = ssm2602->slave_substream;
 338
 339         ssm2602->slave_substream = NULL;
 340 }
 341
 342
 343 static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
 344 {
 345         struct snd_soc_codec *codec = dai->codec;
 346
 347         if (mute)
 348                 snd_soc_update_bits(codec, SSM2602_APDIGI,
 349                                     APDIGI_ENABLE_DAC_MUTE,
 350                                     APDIGI_ENABLE_DAC_MUTE);
 351         else
 352                 snd_soc_update_bits(codec, SSM2602_APDIGI,
 353                                     APDIGI_ENABLE_DAC_MUTE, 0);
 354         return 0;
 355 }
 356
 357 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 358                 int clk_id, unsigned int freq, int dir)
 359 {
 360         struct snd_soc_codec *codec = codec_dai->codec;
 361         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 362
 363         if (dir == SND_SOC_CLOCK_IN) {
 364                 if (clk_id != SSM2602_SYSCLK)
 365                         return -EINVAL;
 366
 367                 switch (freq) {
 368                 case 11289600:
 369                 case 12000000:
 370                 case 12288000:
 371                 case 16934400:
 372                 case 18432000:
 373                         ssm2602->sysclk = freq;
 374                         break;
 375                 default:
 376                         return -EINVAL;
 377                 }
 378         } else {
 379                 unsigned int mask;
 380
 381                 switch (clk_id) {
 382                 case SSM2602_CLK_CLKOUT:
 383                         mask = PWR_CLK_OUT_PDN;
 384                         break;
 385                 case SSM2602_CLK_XTO:
 386                         mask = PWR_OSC_PDN;
 387                         break;
 388                 default:
 389                         return -EINVAL;
 390                 }
 391
 392                 if (freq == 0)
 393                         ssm2602->clk_out_pwr |= mask;
 394                 else
 395                         ssm2602->clk_out_pwr &= ~mask;
 396
 397                 snd_soc_update_bits(codec, SSM2602_PWR,
 398                         PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
 399         }
 400
 401         return 0;
 402 }
 403
 404 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
 405                 unsigned int fmt)
 406 {
 407         struct snd_soc_codec *codec = codec_dai->codec;
 408         u16 iface = 0;
 409
 410         /* set master/slave audio interface */
 411         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 412         case SND_SOC_DAIFMT_CBM_CFM:
 413                 iface |= 0x0040;
 414                 break;
 415         case SND_SOC_DAIFMT_CBS_CFS:
 416                 break;
 417         default:
 418                 return -EINVAL;
 419         }
 420
 421         /* interface format */
 422         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 423         case SND_SOC_DAIFMT_I2S:
 424                 iface |= 0x0002;
 425                 break;
 426         case SND_SOC_DAIFMT_RIGHT_J:
 427                 break;
 428         case SND_SOC_DAIFMT_LEFT_J:
 429                 iface |= 0x0001;
 430                 break;
 431         case SND_SOC_DAIFMT_DSP_A:
 432                 iface |= 0x0013;
 433                 break;
 434         case SND_SOC_DAIFMT_DSP_B:
 435                 iface |= 0x0003;
 436                 break;
 437         default:
 438                 return -EINVAL;
 439         }
 440
 441         /* clock inversion */
 442         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 443         case SND_SOC_DAIFMT_NB_NF:
 444                 break;
 445         case SND_SOC_DAIFMT_IB_IF:
 446                 iface |= 0x0090;
 447                 break;
 448         case SND_SOC_DAIFMT_IB_NF:
 449                 iface |= 0x0080;
 450                 break;
 451         case SND_SOC_DAIFMT_NB_IF:
 452                 iface |= 0x0010;
 453                 break;
 454         default:
 455                 return -EINVAL;
 456         }
 457
 458         /* set iface */
 459         snd_soc_write(codec, SSM2602_IFACE, iface);
 460         return 0;
 461 }
 462
 463 static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
 464                                  enum snd_soc_bias_level level)
 465 {
 466         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 467
 468         switch (level) {
 469         case SND_SOC_BIAS_ON:
 470                 /* vref/mid on, osc and clkout on if enabled */
 471                 snd_soc_update_bits(codec, SSM2602_PWR,
 472                         PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
 473                         ssm2602->clk_out_pwr);
 474                 break;
 475         case SND_SOC_BIAS_PREPARE:
 476                 break;
 477         case SND_SOC_BIAS_STANDBY:
 478                 /* everything off except vref/vmid, */
 479                 snd_soc_update_bits(codec, SSM2602_PWR,
 480                         PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
 481                         PWR_CLK_OUT_PDN | PWR_OSC_PDN);
 482                 break;
 483         case SND_SOC_BIAS_OFF:
 484                 /* everything off */
 485                 snd_soc_update_bits(codec, SSM2602_PWR,
 486                         PWR_POWER_OFF, PWR_POWER_OFF);
 487                 break;
 488
 489         }
 490         codec->dapm.bias_level = level;
 491         return 0;
 492 }
 493
 494 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
 495                 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
 496                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
 497
 498 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 499                 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 500
 501 static struct snd_soc_dai_ops ssm2602_dai_ops = {
 502         .startup        = ssm2602_startup,
 503         .hw_params      = ssm2602_hw_params,
 504         .shutdown       = ssm2602_shutdown,
 505         .digital_mute   = ssm2602_mute,
 506         .set_sysclk     = ssm2602_set_dai_sysclk,
 507         .set_fmt        = ssm2602_set_dai_fmt,
 508 };
 509
 510 static struct snd_soc_dai_driver ssm2602_dai = {
 511         .name = "ssm2602-hifi",
 512         .playback = {
 513                 .stream_name = "Playback",
 514                 .channels_min = 2,
 515                 .channels_max = 2,
 516                 .rates = SSM2602_RATES,
 517                 .formats = SSM2602_FORMATS,},
 518         .capture = {
 519                 .stream_name = "Capture",
 520                 .channels_min = 2,
 521                 .channels_max = 2,
 522                 .rates = SSM2602_RATES,
 523                 .formats = SSM2602_FORMATS,},
 524         .ops = &ssm2602_dai_ops,
 525 };
 526
 527 static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state)
 528 {
 529         ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
 530         return 0;
 531 }
 532
 533 static int ssm2602_resume(struct snd_soc_codec *codec)
 534 {
 535         snd_soc_cache_sync(codec);
 536
 537         ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 538
 539         return 0;
 540 }
 541
 542 static int ssm2602_probe(struct snd_soc_codec *codec)
 543 {
 544         struct snd_soc_dapm_context *dapm = &codec->dapm;
 545         int ret;
 546
 547         snd_soc_update_bits(codec, SSM2602_LOUT1V,
 548                             LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
 549         snd_soc_update_bits(codec, SSM2602_ROUT1V,
 550                             ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
 551
 552         ret = snd_soc_add_controls(codec, ssm2602_snd_controls,
 553                         ARRAY_SIZE(ssm2602_snd_controls));
 554         if (ret)
 555                 return ret;
 556
 557         ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
 558                         ARRAY_SIZE(ssm2602_dapm_widgets));
 559         if (ret)
 560                 return ret;
 561
 562         return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
 563                         ARRAY_SIZE(ssm2602_routes));
 564 }
 565
 566 static int ssm2604_probe(struct snd_soc_codec *codec)
 567 {
 568         struct snd_soc_dapm_context *dapm = &codec->dapm;
 569         int ret;
 570
 571         ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
 572                         ARRAY_SIZE(ssm2604_dapm_widgets));
 573         if (ret)
 574                 return ret;
 575
 576         return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
 577                         ARRAY_SIZE(ssm2604_routes));
 578 }
 579
 580 static int ssm260x_probe(struct snd_soc_codec *codec)
 581 {
 582         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 583         int ret;
 584
 585         pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
 586
 587         ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
 588         if (ret < 0) {
 589                 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 590                 return ret;
 591         }
 592
 593         ret = ssm2602_reset(codec);
 594         if (ret < 0) {
 595                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
 596                 return ret;
 597         }
 598
 599         /* set the update bits */
 600         snd_soc_update_bits(codec, SSM2602_LINVOL,
 601                             LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
 602         snd_soc_update_bits(codec, SSM2602_RINVOL,
 603                             RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
 604         /*select Line in as default input*/
 605         snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
 606                         APANA_ENABLE_MIC_BOOST);
 607
 608         switch (ssm2602->type) {
 609         case SSM2602:
 610                 ret = ssm2602_probe(codec);
 611                 break;
 612         case SSM2604:
 613                 ret = ssm2604_probe(codec);
 614                 break;
 615         }
 616
 617         if (ret)
 618                 return ret;
 619
 620         ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 621
 622         return 0;
 623 }
 624
 625 /* remove everything here */
 626 static int ssm2602_remove(struct snd_soc_codec *codec)
 627 {
 628         ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
 629         return 0;
 630 }
 631
 632 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
 633         .probe =        ssm260x_probe,
 634         .remove =       ssm2602_remove,
 635         .suspend =      ssm2602_suspend,
 636         .resume =       ssm2602_resume,
 637         .set_bias_level = ssm2602_set_bias_level,
 638         .reg_cache_size = ARRAY_SIZE(ssm2602_reg),
 639         .reg_word_size = sizeof(u16),
 640         .reg_cache_default = ssm2602_reg,
 641
 642         .controls = ssm260x_snd_controls,
 643         .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
 644         .dapm_widgets = ssm260x_dapm_widgets,
 645         .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
 646         .dapm_routes = ssm260x_routes,
 647         .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
 648 };
 649
 650 #if defined(CONFIG_SPI_MASTER)
 651 static int __devinit ssm2602_spi_probe(struct spi_device *spi)
 652 {
 653         struct ssm2602_priv *ssm2602;
 654         int ret;
 655
 656         ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
 657         if (ssm2602 == NULL)
 658                 return -ENOMEM;
 659
 660         spi_set_drvdata(spi, ssm2602);
 661         ssm2602->control_type = SND_SOC_SPI;
 662         ssm2602->type = SSM2602;
 663
 664         ret = snd_soc_register_codec(&spi->dev,
 665                         &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
 666         if (ret < 0)
 667                 kfree(ssm2602);
 668         return ret;
 669 }
 670
 671 static int __devexit ssm2602_spi_remove(struct spi_device *spi)
 672 {
 673         snd_soc_unregister_codec(&spi->dev);
 674         kfree(spi_get_drvdata(spi));
 675         return 0;
 676 }
 677
 678 static struct spi_driver ssm2602_spi_driver = {
 679         .driver = {
 680                 .name   = "ssm2602",
 681                 .owner  = THIS_MODULE,
 682         },
 683         .probe          = ssm2602_spi_probe,
 684         .remove         = __devexit_p(ssm2602_spi_remove),
 685 };
 686 #endif
 687
 688 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 689 /*
 690  * ssm2602 2 wire address is determined by GPIO5
 691  * state during powerup.
 692  *    low  = 0x1a
 693  *    high = 0x1b
 694  */
 695 static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
 696                              const struct i2c_device_id *id)
 697 {
 698         struct ssm2602_priv *ssm2602;
 699         int ret;
 700
 701         ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
 702         if (ssm2602 == NULL)
 703                 return -ENOMEM;
 704
 705         i2c_set_clientdata(i2c, ssm2602);
 706         ssm2602->control_type = SND_SOC_I2C;
 707         ssm2602->type = id->driver_data;
 708
 709         ret = snd_soc_register_codec(&i2c->dev,
 710                         &soc_codec_dev_ssm2602, &ssm2602_dai, 1);
 711         if (ret < 0)
 712                 kfree(ssm2602);
 713         return ret;
 714 }
 715
 716 static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
 717 {
 718         snd_soc_unregister_codec(&client->dev);
 719         kfree(i2c_get_clientdata(client));
 720         return 0;
 721 }
 722
 723 static const struct i2c_device_id ssm2602_i2c_id[] = {
 724         { "ssm2602", SSM2602 },
 725         { "ssm2603", SSM2602 },
 726         { "ssm2604", SSM2604 },
 727         { }
 728 };
 729 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
 730
 731 /* corgi i2c codec control layer */
 732 static struct i2c_driver ssm2602_i2c_driver = {
 733         .driver = {
 734                 .name = "ssm2602",
 735                 .owner = THIS_MODULE,
 736         },
 737         .probe = ssm2602_i2c_probe,
 738         .remove = __devexit_p(ssm2602_i2c_remove),
 739         .id_table = ssm2602_i2c_id,
 740 };
 741 #endif
 742
 743
 744 static int __init ssm2602_modinit(void)
 745 {
 746         int ret = 0;
 747
 748 #if defined(CONFIG_SPI_MASTER)
 749         ret = spi_register_driver(&ssm2602_spi_driver);
 750         if (ret)
 751                 return ret;
 752 #endif
 753
 754 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 755         ret = i2c_add_driver(&ssm2602_i2c_driver);
 756         if (ret)
 757                 return ret;
 758 #endif
 759
 760         return ret;
 761 }
 762 module_init(ssm2602_modinit);
 763
 764 static void __exit ssm2602_exit(void)
 765 {
 766 #if defined(CONFIG_SPI_MASTER)
 767         spi_unregister_driver(&ssm2602_spi_driver);
 768 #endif
 769
 770 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 771         i2c_del_driver(&ssm2602_i2c_driver);
 772 #endif
 773 }
 774 module_exit(ssm2602_exit);
 775
 776 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
 777 MODULE_AUTHOR("Cliff Cai");
 778 MODULE_LICENSE("GPL");