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"); 779