| 1 | /* |
| 2 | * AD193X Audio Codec driver supporting AD1936/7/8/9 |
| 3 | * |
| 4 | * Copyright 2010 Analog Devices Inc. |
| 5 | * |
| 6 | * Licensed under the GPL-2 or later. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/module.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/device.h> |
| 12 | #include <linux/regmap.h> |
| 13 | #include <linux/slab.h> |
| 14 | #include <sound/core.h> |
| 15 | #include <sound/pcm.h> |
| 16 | #include <sound/pcm_params.h> |
| 17 | #include <sound/initval.h> |
| 18 | #include <sound/soc.h> |
| 19 | #include <sound/tlv.h> |
| 20 | |
| 21 | #include "ad193x.h" |
| 22 | |
| 23 | /* codec private data */ |
| 24 | struct ad193x_priv { |
| 25 | struct regmap *regmap; |
| 26 | enum ad193x_type type; |
| 27 | int sysclk; |
| 28 | }; |
| 29 | |
| 30 | /* |
| 31 | * AD193X volume/mute/de-emphasis etc. controls |
| 32 | */ |
| 33 | static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"}; |
| 34 | |
| 35 | static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1, |
| 36 | ad193x_deemp); |
| 37 | |
| 38 | static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0); |
| 39 | |
| 40 | static const struct snd_kcontrol_new ad193x_snd_controls[] = { |
| 41 | /* DAC volume control */ |
| 42 | SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL, |
| 43 | AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv), |
| 44 | SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL, |
| 45 | AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv), |
| 46 | SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL, |
| 47 | AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv), |
| 48 | SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL, |
| 49 | AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv), |
| 50 | |
| 51 | /* DAC switch control */ |
| 52 | SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE, |
| 53 | AD193X_DACR1_MUTE, 1, 1), |
| 54 | SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE, |
| 55 | AD193X_DACR2_MUTE, 1, 1), |
| 56 | SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE, |
| 57 | AD193X_DACR3_MUTE, 1, 1), |
| 58 | SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE, |
| 59 | AD193X_DACR4_MUTE, 1, 1), |
| 60 | |
| 61 | /* DAC de-emphasis */ |
| 62 | SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum), |
| 63 | }; |
| 64 | |
| 65 | static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = { |
| 66 | /* ADC switch control */ |
| 67 | SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE, |
| 68 | AD193X_ADCR1_MUTE, 1, 1), |
| 69 | SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE, |
| 70 | AD193X_ADCR2_MUTE, 1, 1), |
| 71 | |
| 72 | /* ADC high-pass filter */ |
| 73 | SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0, |
| 74 | AD193X_ADC_HIGHPASS_FILTER, 1, 0), |
| 75 | }; |
| 76 | |
| 77 | static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = { |
| 78 | SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0), |
| 79 | SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0), |
| 80 | SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0), |
| 81 | SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0), |
| 82 | SND_SOC_DAPM_VMID("VMID"), |
| 83 | SND_SOC_DAPM_OUTPUT("DAC1OUT"), |
| 84 | SND_SOC_DAPM_OUTPUT("DAC2OUT"), |
| 85 | SND_SOC_DAPM_OUTPUT("DAC3OUT"), |
| 86 | SND_SOC_DAPM_OUTPUT("DAC4OUT"), |
| 87 | }; |
| 88 | |
| 89 | static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = { |
| 90 | SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), |
| 91 | SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0), |
| 92 | SND_SOC_DAPM_INPUT("ADC1IN"), |
| 93 | SND_SOC_DAPM_INPUT("ADC2IN"), |
| 94 | }; |
| 95 | |
| 96 | static const struct snd_soc_dapm_route audio_paths[] = { |
| 97 | { "DAC", NULL, "SYSCLK" }, |
| 98 | { "DAC Output", NULL, "DAC" }, |
| 99 | { "DAC Output", NULL, "VMID" }, |
| 100 | { "DAC1OUT", NULL, "DAC Output" }, |
| 101 | { "DAC2OUT", NULL, "DAC Output" }, |
| 102 | { "DAC3OUT", NULL, "DAC Output" }, |
| 103 | { "DAC4OUT", NULL, "DAC Output" }, |
| 104 | { "SYSCLK", NULL, "PLL_PWR" }, |
| 105 | }; |
| 106 | |
| 107 | static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = { |
| 108 | { "ADC", NULL, "SYSCLK" }, |
| 109 | { "ADC", NULL, "ADC_PWR" }, |
| 110 | { "ADC", NULL, "ADC1IN" }, |
| 111 | { "ADC", NULL, "ADC2IN" }, |
| 112 | }; |
| 113 | |
| 114 | static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x) |
| 115 | { |
| 116 | switch (ad193x->type) { |
| 117 | case AD1933: |
| 118 | case AD1934: |
| 119 | return false; |
| 120 | default: |
| 121 | break; |
| 122 | } |
| 123 | |
| 124 | return true; |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | * DAI ops entries |
| 129 | */ |
| 130 | |
| 131 | static int ad193x_mute(struct snd_soc_dai *dai, int mute) |
| 132 | { |
| 133 | struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec); |
| 134 | |
| 135 | if (mute) |
| 136 | regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2, |
| 137 | AD193X_DAC_MASTER_MUTE, |
| 138 | AD193X_DAC_MASTER_MUTE); |
| 139 | else |
| 140 | regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2, |
| 141 | AD193X_DAC_MASTER_MUTE, 0); |
| 142 | |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, |
| 147 | unsigned int rx_mask, int slots, int width) |
| 148 | { |
| 149 | struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec); |
| 150 | unsigned int channels; |
| 151 | |
| 152 | switch (slots) { |
| 153 | case 2: |
| 154 | channels = AD193X_2_CHANNELS; |
| 155 | break; |
| 156 | case 4: |
| 157 | channels = AD193X_4_CHANNELS; |
| 158 | break; |
| 159 | case 8: |
| 160 | channels = AD193X_8_CHANNELS; |
| 161 | break; |
| 162 | case 16: |
| 163 | channels = AD193X_16_CHANNELS; |
| 164 | break; |
| 165 | default: |
| 166 | return -EINVAL; |
| 167 | } |
| 168 | |
| 169 | regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1, |
| 170 | AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT); |
| 171 | if (ad193x_has_adc(ad193x)) |
| 172 | regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2, |
| 173 | AD193X_ADC_CHAN_MASK, |
| 174 | channels << AD193X_ADC_CHAN_SHFT); |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| 180 | unsigned int fmt) |
| 181 | { |
| 182 | struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec_dai->codec); |
| 183 | unsigned int adc_serfmt = 0; |
| 184 | unsigned int adc_fmt = 0; |
| 185 | unsigned int dac_fmt = 0; |
| 186 | |
| 187 | /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S |
| 188 | * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) |
| 189 | */ |
| 190 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 191 | case SND_SOC_DAIFMT_I2S: |
| 192 | adc_serfmt |= AD193X_ADC_SERFMT_TDM; |
| 193 | break; |
| 194 | case SND_SOC_DAIFMT_DSP_A: |
| 195 | adc_serfmt |= AD193X_ADC_SERFMT_AUX; |
| 196 | break; |
| 197 | default: |
| 198 | if (ad193x_has_adc(ad193x)) |
| 199 | return -EINVAL; |
| 200 | break; |
| 201 | } |
| 202 | |
| 203 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 204 | case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */ |
| 205 | break; |
| 206 | case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */ |
| 207 | adc_fmt |= AD193X_ADC_LEFT_HIGH; |
| 208 | dac_fmt |= AD193X_DAC_LEFT_HIGH; |
| 209 | break; |
| 210 | case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */ |
| 211 | adc_fmt |= AD193X_ADC_BCLK_INV; |
| 212 | dac_fmt |= AD193X_DAC_BCLK_INV; |
| 213 | break; |
| 214 | case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */ |
| 215 | adc_fmt |= AD193X_ADC_LEFT_HIGH; |
| 216 | adc_fmt |= AD193X_ADC_BCLK_INV; |
| 217 | dac_fmt |= AD193X_DAC_LEFT_HIGH; |
| 218 | dac_fmt |= AD193X_DAC_BCLK_INV; |
| 219 | break; |
| 220 | default: |
| 221 | return -EINVAL; |
| 222 | } |
| 223 | |
| 224 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 225 | case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */ |
| 226 | adc_fmt |= AD193X_ADC_LCR_MASTER; |
| 227 | adc_fmt |= AD193X_ADC_BCLK_MASTER; |
| 228 | dac_fmt |= AD193X_DAC_LCR_MASTER; |
| 229 | dac_fmt |= AD193X_DAC_BCLK_MASTER; |
| 230 | break; |
| 231 | case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */ |
| 232 | adc_fmt |= AD193X_ADC_LCR_MASTER; |
| 233 | dac_fmt |= AD193X_DAC_LCR_MASTER; |
| 234 | break; |
| 235 | case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */ |
| 236 | adc_fmt |= AD193X_ADC_BCLK_MASTER; |
| 237 | dac_fmt |= AD193X_DAC_BCLK_MASTER; |
| 238 | break; |
| 239 | case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */ |
| 240 | break; |
| 241 | default: |
| 242 | return -EINVAL; |
| 243 | } |
| 244 | |
| 245 | if (ad193x_has_adc(ad193x)) { |
| 246 | regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1, |
| 247 | AD193X_ADC_SERFMT_MASK, adc_serfmt); |
| 248 | regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2, |
| 249 | AD193X_ADC_FMT_MASK, adc_fmt); |
| 250 | } |
| 251 | regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1, |
| 252 | AD193X_DAC_FMT_MASK, dac_fmt); |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| 258 | int clk_id, unsigned int freq, int dir) |
| 259 | { |
| 260 | struct snd_soc_codec *codec = codec_dai->codec; |
| 261 | struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec); |
| 262 | switch (freq) { |
| 263 | case 12288000: |
| 264 | case 18432000: |
| 265 | case 24576000: |
| 266 | case 36864000: |
| 267 | ad193x->sysclk = freq; |
| 268 | return 0; |
| 269 | } |
| 270 | return -EINVAL; |
| 271 | } |
| 272 | |
| 273 | static int ad193x_hw_params(struct snd_pcm_substream *substream, |
| 274 | struct snd_pcm_hw_params *params, |
| 275 | struct snd_soc_dai *dai) |
| 276 | { |
| 277 | int word_len = 0, master_rate = 0; |
| 278 | struct snd_soc_codec *codec = dai->codec; |
| 279 | struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec); |
| 280 | |
| 281 | /* bit size */ |
| 282 | switch (params_width(params)) { |
| 283 | case 16: |
| 284 | word_len = 3; |
| 285 | break; |
| 286 | case 20: |
| 287 | word_len = 1; |
| 288 | break; |
| 289 | case 24: |
| 290 | case 32: |
| 291 | word_len = 0; |
| 292 | break; |
| 293 | } |
| 294 | |
| 295 | switch (ad193x->sysclk) { |
| 296 | case 12288000: |
| 297 | master_rate = AD193X_PLL_INPUT_256; |
| 298 | break; |
| 299 | case 18432000: |
| 300 | master_rate = AD193X_PLL_INPUT_384; |
| 301 | break; |
| 302 | case 24576000: |
| 303 | master_rate = AD193X_PLL_INPUT_512; |
| 304 | break; |
| 305 | case 36864000: |
| 306 | master_rate = AD193X_PLL_INPUT_768; |
| 307 | break; |
| 308 | } |
| 309 | |
| 310 | regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0, |
| 311 | AD193X_PLL_INPUT_MASK, master_rate); |
| 312 | |
| 313 | regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2, |
| 314 | AD193X_DAC_WORD_LEN_MASK, |
| 315 | word_len << AD193X_DAC_WORD_LEN_SHFT); |
| 316 | |
| 317 | if (ad193x_has_adc(ad193x)) |
| 318 | regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1, |
| 319 | AD193X_ADC_WORD_LEN_MASK, word_len); |
| 320 | |
| 321 | return 0; |
| 322 | } |
| 323 | |
| 324 | static const struct snd_soc_dai_ops ad193x_dai_ops = { |
| 325 | .hw_params = ad193x_hw_params, |
| 326 | .digital_mute = ad193x_mute, |
| 327 | .set_tdm_slot = ad193x_set_tdm_slot, |
| 328 | .set_sysclk = ad193x_set_dai_sysclk, |
| 329 | .set_fmt = ad193x_set_dai_fmt, |
| 330 | }; |
| 331 | |
| 332 | /* codec DAI instance */ |
| 333 | static struct snd_soc_dai_driver ad193x_dai = { |
| 334 | .name = "ad193x-hifi", |
| 335 | .playback = { |
| 336 | .stream_name = "Playback", |
| 337 | .channels_min = 2, |
| 338 | .channels_max = 8, |
| 339 | .rates = SNDRV_PCM_RATE_48000, |
| 340 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
| 341 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
| 342 | }, |
| 343 | .capture = { |
| 344 | .stream_name = "Capture", |
| 345 | .channels_min = 2, |
| 346 | .channels_max = 4, |
| 347 | .rates = SNDRV_PCM_RATE_48000, |
| 348 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
| 349 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
| 350 | }, |
| 351 | .ops = &ad193x_dai_ops, |
| 352 | }; |
| 353 | |
| 354 | static int ad193x_codec_probe(struct snd_soc_codec *codec) |
| 355 | { |
| 356 | struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec); |
| 357 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); |
| 358 | int num, ret; |
| 359 | |
| 360 | /* default setting for ad193x */ |
| 361 | |
| 362 | /* unmute dac channels */ |
| 363 | regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0); |
| 364 | /* de-emphasis: 48kHz, powedown dac */ |
| 365 | regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A); |
| 366 | /* dac in tdm mode */ |
| 367 | regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x40); |
| 368 | |
| 369 | /* adc only */ |
| 370 | if (ad193x_has_adc(ad193x)) { |
| 371 | /* high-pass filter enable */ |
| 372 | regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3); |
| 373 | /* sata delay=1, adc aux mode */ |
| 374 | regmap_write(ad193x->regmap, AD193X_ADC_CTRL1, 0x43); |
| 375 | } |
| 376 | |
| 377 | /* pll input: mclki/xi */ |
| 378 | regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */ |
| 379 | regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL1, 0x04); |
| 380 | |
| 381 | /* adc only */ |
| 382 | if (ad193x_has_adc(ad193x)) { |
| 383 | /* add adc controls */ |
| 384 | num = ARRAY_SIZE(ad193x_adc_snd_controls); |
| 385 | ret = snd_soc_add_codec_controls(codec, |
| 386 | ad193x_adc_snd_controls, |
| 387 | num); |
| 388 | if (ret) |
| 389 | return ret; |
| 390 | |
| 391 | /* add adc widgets */ |
| 392 | num = ARRAY_SIZE(ad193x_adc_widgets); |
| 393 | ret = snd_soc_dapm_new_controls(dapm, |
| 394 | ad193x_adc_widgets, |
| 395 | num); |
| 396 | if (ret) |
| 397 | return ret; |
| 398 | |
| 399 | /* add adc routes */ |
| 400 | num = ARRAY_SIZE(ad193x_adc_audio_paths); |
| 401 | ret = snd_soc_dapm_add_routes(dapm, |
| 402 | ad193x_adc_audio_paths, |
| 403 | num); |
| 404 | if (ret) |
| 405 | return ret; |
| 406 | } |
| 407 | |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | static struct snd_soc_codec_driver soc_codec_dev_ad193x = { |
| 412 | .probe = ad193x_codec_probe, |
| 413 | .component_driver = { |
| 414 | .controls = ad193x_snd_controls, |
| 415 | .num_controls = ARRAY_SIZE(ad193x_snd_controls), |
| 416 | .dapm_widgets = ad193x_dapm_widgets, |
| 417 | .num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets), |
| 418 | .dapm_routes = audio_paths, |
| 419 | .num_dapm_routes = ARRAY_SIZE(audio_paths), |
| 420 | }, |
| 421 | }; |
| 422 | |
| 423 | const struct regmap_config ad193x_regmap_config = { |
| 424 | .max_register = AD193X_NUM_REGS - 1, |
| 425 | }; |
| 426 | EXPORT_SYMBOL_GPL(ad193x_regmap_config); |
| 427 | |
| 428 | int ad193x_probe(struct device *dev, struct regmap *regmap, |
| 429 | enum ad193x_type type) |
| 430 | { |
| 431 | struct ad193x_priv *ad193x; |
| 432 | |
| 433 | if (IS_ERR(regmap)) |
| 434 | return PTR_ERR(regmap); |
| 435 | |
| 436 | ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL); |
| 437 | if (ad193x == NULL) |
| 438 | return -ENOMEM; |
| 439 | |
| 440 | ad193x->regmap = regmap; |
| 441 | ad193x->type = type; |
| 442 | |
| 443 | dev_set_drvdata(dev, ad193x); |
| 444 | |
| 445 | return snd_soc_register_codec(dev, &soc_codec_dev_ad193x, |
| 446 | &ad193x_dai, 1); |
| 447 | } |
| 448 | EXPORT_SYMBOL_GPL(ad193x_probe); |
| 449 | |
| 450 | MODULE_DESCRIPTION("ASoC ad193x driver"); |
| 451 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); |
| 452 | MODULE_LICENSE("GPL"); |