Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 1 | /* |
| 2 | * ASoC codec driver for spear platform |
| 3 | * |
| 4 | * sound/soc/codecs/sta529.c -- spear ALSA Soc codec driver |
| 5 | * |
| 6 | * Copyright (C) 2012 ST Microelectronics |
Rajeev Kumar | b794dbc | 2014-09-09 12:27:19 +0530 | [diff] [blame] | 7 | * Rajeev Kumar <rajeevkumar.linux@gmail.com> |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 8 | * |
| 9 | * This file is licensed under the terms of the GNU General Public |
| 10 | * License version 2. This program is licensed "as is" without any |
| 11 | * warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/clk.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/i2c.h> |
| 17 | #include <linux/io.h> |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/moduleparam.h> |
| 20 | #include <linux/pm.h> |
| 21 | #include <linux/regmap.h> |
| 22 | #include <linux/slab.h> |
| 23 | |
| 24 | #include <sound/core.h> |
| 25 | #include <sound/initval.h> |
| 26 | #include <sound/pcm.h> |
| 27 | #include <sound/pcm_params.h> |
| 28 | #include <sound/soc.h> |
| 29 | #include <sound/soc-dapm.h> |
| 30 | #include <sound/tlv.h> |
| 31 | |
| 32 | /* STA529 Register offsets */ |
| 33 | #define STA529_FFXCFG0 0x00 |
| 34 | #define STA529_FFXCFG1 0x01 |
| 35 | #define STA529_MVOL 0x02 |
| 36 | #define STA529_LVOL 0x03 |
| 37 | #define STA529_RVOL 0x04 |
| 38 | #define STA529_TTF0 0x05 |
| 39 | #define STA529_TTF1 0x06 |
| 40 | #define STA529_TTP0 0x07 |
| 41 | #define STA529_TTP1 0x08 |
| 42 | #define STA529_S2PCFG0 0x0A |
| 43 | #define STA529_S2PCFG1 0x0B |
| 44 | #define STA529_P2SCFG0 0x0C |
| 45 | #define STA529_P2SCFG1 0x0D |
| 46 | #define STA529_PLLCFG0 0x14 |
| 47 | #define STA529_PLLCFG1 0x15 |
| 48 | #define STA529_PLLCFG2 0x16 |
| 49 | #define STA529_PLLCFG3 0x17 |
| 50 | #define STA529_PLLPFE 0x18 |
| 51 | #define STA529_PLLST 0x19 |
| 52 | #define STA529_ADCCFG 0x1E /*mic_select*/ |
| 53 | #define STA529_CKOCFG 0x1F |
| 54 | #define STA529_MISC 0x20 |
| 55 | #define STA529_PADST0 0x21 |
| 56 | #define STA529_PADST1 0x22 |
| 57 | #define STA529_FFXST 0x23 |
| 58 | #define STA529_PWMIN1 0x2D |
| 59 | #define STA529_PWMIN2 0x2E |
| 60 | #define STA529_POWST 0x32 |
| 61 | |
| 62 | #define STA529_MAX_REGISTER 0x32 |
| 63 | |
| 64 | #define STA529_RATES (SNDRV_PCM_RATE_8000 | \ |
| 65 | SNDRV_PCM_RATE_11025 | \ |
| 66 | SNDRV_PCM_RATE_16000 | \ |
| 67 | SNDRV_PCM_RATE_22050 | \ |
| 68 | SNDRV_PCM_RATE_32000 | \ |
| 69 | SNDRV_PCM_RATE_44100 | \ |
| 70 | SNDRV_PCM_RATE_48000) |
| 71 | |
| 72 | #define STA529_FORMAT (SNDRV_PCM_FMTBIT_S16_LE | \ |
| 73 | SNDRV_PCM_FMTBIT_S24_LE | \ |
| 74 | SNDRV_PCM_FMTBIT_S32_LE) |
| 75 | #define S2PC_VALUE 0x98 |
| 76 | #define CLOCK_OUT 0x60 |
Axel Lin | ad1937c | 2012-12-20 16:17:25 +0800 | [diff] [blame] | 77 | #define DATA_FORMAT_MSK 0x0E |
| 78 | #define LEFT_J_DATA_FORMAT 0x00 |
| 79 | #define I2S_DATA_FORMAT 0x02 |
| 80 | #define RIGHT_J_DATA_FORMAT 0x04 |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 81 | #define CODEC_MUTE_VAL 0x80 |
| 82 | |
| 83 | #define POWER_CNTLMSAK 0x40 |
| 84 | #define POWER_STDBY 0x40 |
| 85 | #define FFX_MASK 0x80 |
| 86 | #define FFX_OFF 0x80 |
| 87 | #define POWER_UP 0x00 |
| 88 | #define FFX_CLK_ENB 0x01 |
| 89 | #define FFX_CLK_DIS 0x00 |
| 90 | #define FFX_CLK_MSK 0x01 |
| 91 | #define PLAY_FREQ_RANGE_MSK 0x70 |
| 92 | #define CAP_FREQ_RANGE_MSK 0x0C |
| 93 | #define PDATA_LEN_MSK 0xC0 |
| 94 | #define BCLK_TO_FS_MSK 0x30 |
| 95 | #define AUDIO_MUTE_MSK 0x80 |
| 96 | |
| 97 | static const struct reg_default sta529_reg_defaults[] = { |
| 98 | { 0, 0x35 }, /* R0 - FFX Configuration reg 0 */ |
| 99 | { 1, 0xc8 }, /* R1 - FFX Configuration reg 1 */ |
| 100 | { 2, 0x50 }, /* R2 - Master Volume */ |
| 101 | { 3, 0x00 }, /* R3 - Left Volume */ |
| 102 | { 4, 0x00 }, /* R4 - Right Volume */ |
| 103 | { 10, 0xb2 }, /* R10 - S2P Config Reg 0 */ |
| 104 | { 11, 0x41 }, /* R11 - S2P Config Reg 1 */ |
| 105 | { 12, 0x92 }, /* R12 - P2S Config Reg 0 */ |
| 106 | { 13, 0x41 }, /* R13 - P2S Config Reg 1 */ |
| 107 | { 30, 0xd2 }, /* R30 - ADC Config Reg */ |
| 108 | { 31, 0x40 }, /* R31 - clock Out Reg */ |
| 109 | { 32, 0x21 }, /* R32 - Misc Register */ |
| 110 | }; |
| 111 | |
| 112 | struct sta529 { |
| 113 | struct regmap *regmap; |
| 114 | }; |
| 115 | |
| 116 | static bool sta529_readable(struct device *dev, unsigned int reg) |
| 117 | { |
| 118 | switch (reg) { |
| 119 | |
| 120 | case STA529_FFXCFG0: |
| 121 | case STA529_FFXCFG1: |
| 122 | case STA529_MVOL: |
| 123 | case STA529_LVOL: |
| 124 | case STA529_RVOL: |
| 125 | case STA529_S2PCFG0: |
| 126 | case STA529_S2PCFG1: |
| 127 | case STA529_P2SCFG0: |
| 128 | case STA529_P2SCFG1: |
| 129 | case STA529_ADCCFG: |
| 130 | case STA529_CKOCFG: |
| 131 | case STA529_MISC: |
| 132 | return true; |
| 133 | default: |
| 134 | return false; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | |
| 139 | static const char *pwm_mode_text[] = { "Binary", "Headphone", "Ternary", |
| 140 | "Phase-shift"}; |
| 141 | |
| 142 | static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -9150, 50, 0); |
| 143 | static const DECLARE_TLV_DB_SCALE(master_vol_tlv, -12750, 50, 0); |
Takashi Iwai | f281205 | 2014-02-18 09:43:49 +0100 | [diff] [blame] | 144 | static SOC_ENUM_SINGLE_DECL(pwm_src, STA529_FFXCFG1, 4, pwm_mode_text); |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 145 | |
| 146 | static const struct snd_kcontrol_new sta529_snd_controls[] = { |
| 147 | SOC_DOUBLE_R_TLV("Digital Playback Volume", STA529_LVOL, STA529_RVOL, 0, |
| 148 | 127, 0, out_gain_tlv), |
| 149 | SOC_SINGLE_TLV("Master Playback Volume", STA529_MVOL, 0, 127, 1, |
| 150 | master_vol_tlv), |
| 151 | SOC_ENUM("PWM Select", pwm_src), |
| 152 | }; |
| 153 | |
| 154 | static int sta529_set_bias_level(struct snd_soc_codec *codec, enum |
| 155 | snd_soc_bias_level level) |
| 156 | { |
| 157 | struct sta529 *sta529 = snd_soc_codec_get_drvdata(codec); |
| 158 | |
| 159 | switch (level) { |
| 160 | case SND_SOC_BIAS_ON: |
| 161 | case SND_SOC_BIAS_PREPARE: |
| 162 | snd_soc_update_bits(codec, STA529_FFXCFG0, POWER_CNTLMSAK, |
| 163 | POWER_UP); |
| 164 | snd_soc_update_bits(codec, STA529_MISC, FFX_CLK_MSK, |
| 165 | FFX_CLK_ENB); |
| 166 | break; |
| 167 | case SND_SOC_BIAS_STANDBY: |
Lars-Peter Clausen | 95fcb38 | 2015-05-14 11:19:55 +0200 | [diff] [blame] | 168 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 169 | regcache_sync(sta529->regmap); |
| 170 | snd_soc_update_bits(codec, STA529_FFXCFG0, |
| 171 | POWER_CNTLMSAK, POWER_STDBY); |
| 172 | /* Making FFX output to zero */ |
| 173 | snd_soc_update_bits(codec, STA529_FFXCFG0, FFX_MASK, |
| 174 | FFX_OFF); |
| 175 | snd_soc_update_bits(codec, STA529_MISC, FFX_CLK_MSK, |
| 176 | FFX_CLK_DIS); |
| 177 | break; |
| 178 | case SND_SOC_BIAS_OFF: |
| 179 | break; |
| 180 | } |
| 181 | |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 182 | return 0; |
| 183 | |
| 184 | } |
| 185 | |
| 186 | static int sta529_hw_params(struct snd_pcm_substream *substream, |
| 187 | struct snd_pcm_hw_params *params, |
| 188 | struct snd_soc_dai *dai) |
| 189 | { |
Lars-Peter Clausen | ab64246 | 2014-03-13 21:24:54 +0100 | [diff] [blame] | 190 | struct snd_soc_codec *codec = dai->codec; |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 191 | int pdata, play_freq_val, record_freq_val; |
| 192 | int bclk_to_fs_ratio; |
| 193 | |
Mark Brown | 1f9ffcb | 2014-07-31 12:47:32 +0100 | [diff] [blame] | 194 | switch (params_width(params)) { |
| 195 | case 16: |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 196 | pdata = 1; |
| 197 | bclk_to_fs_ratio = 0; |
| 198 | break; |
Mark Brown | 1f9ffcb | 2014-07-31 12:47:32 +0100 | [diff] [blame] | 199 | case 24: |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 200 | pdata = 2; |
| 201 | bclk_to_fs_ratio = 1; |
| 202 | break; |
Mark Brown | 1f9ffcb | 2014-07-31 12:47:32 +0100 | [diff] [blame] | 203 | case 32: |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 204 | pdata = 3; |
| 205 | bclk_to_fs_ratio = 2; |
| 206 | break; |
| 207 | default: |
| 208 | dev_err(codec->dev, "Unsupported format\n"); |
| 209 | return -EINVAL; |
| 210 | } |
| 211 | |
| 212 | switch (params_rate(params)) { |
| 213 | case 8000: |
| 214 | case 11025: |
| 215 | play_freq_val = 0; |
| 216 | record_freq_val = 2; |
| 217 | break; |
| 218 | case 16000: |
| 219 | case 22050: |
| 220 | play_freq_val = 1; |
| 221 | record_freq_val = 0; |
| 222 | break; |
| 223 | |
| 224 | case 32000: |
| 225 | case 44100: |
| 226 | case 48000: |
| 227 | play_freq_val = 2; |
| 228 | record_freq_val = 0; |
| 229 | break; |
| 230 | default: |
| 231 | dev_err(codec->dev, "Unsupported rate\n"); |
| 232 | return -EINVAL; |
| 233 | } |
| 234 | |
| 235 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 236 | snd_soc_update_bits(codec, STA529_S2PCFG1, PDATA_LEN_MSK, |
| 237 | pdata << 6); |
| 238 | snd_soc_update_bits(codec, STA529_S2PCFG1, BCLK_TO_FS_MSK, |
| 239 | bclk_to_fs_ratio << 4); |
| 240 | snd_soc_update_bits(codec, STA529_MISC, PLAY_FREQ_RANGE_MSK, |
| 241 | play_freq_val << 4); |
| 242 | } else { |
| 243 | snd_soc_update_bits(codec, STA529_P2SCFG1, PDATA_LEN_MSK, |
| 244 | pdata << 6); |
| 245 | snd_soc_update_bits(codec, STA529_P2SCFG1, BCLK_TO_FS_MSK, |
| 246 | bclk_to_fs_ratio << 4); |
| 247 | snd_soc_update_bits(codec, STA529_MISC, CAP_FREQ_RANGE_MSK, |
| 248 | record_freq_val << 2); |
| 249 | } |
| 250 | |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | static int sta529_mute(struct snd_soc_dai *dai, int mute) |
| 255 | { |
| 256 | u8 val = 0; |
| 257 | |
| 258 | if (mute) |
| 259 | val |= CODEC_MUTE_VAL; |
| 260 | |
| 261 | snd_soc_update_bits(dai->codec, STA529_FFXCFG0, AUDIO_MUTE_MSK, val); |
| 262 | |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | static int sta529_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) |
| 267 | { |
| 268 | struct snd_soc_codec *codec = codec_dai->codec; |
| 269 | u8 mode = 0; |
| 270 | |
| 271 | /* interface format */ |
| 272 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 273 | case SND_SOC_DAIFMT_LEFT_J: |
| 274 | mode = LEFT_J_DATA_FORMAT; |
| 275 | break; |
| 276 | case SND_SOC_DAIFMT_I2S: |
| 277 | mode = I2S_DATA_FORMAT; |
| 278 | break; |
| 279 | case SND_SOC_DAIFMT_RIGHT_J: |
| 280 | mode = RIGHT_J_DATA_FORMAT; |
| 281 | break; |
| 282 | default: |
| 283 | return -EINVAL; |
| 284 | } |
| 285 | |
Axel Lin | ad1937c | 2012-12-20 16:17:25 +0800 | [diff] [blame] | 286 | snd_soc_update_bits(codec, STA529_S2PCFG0, DATA_FORMAT_MSK, mode); |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 287 | |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | static const struct snd_soc_dai_ops sta529_dai_ops = { |
| 292 | .hw_params = sta529_hw_params, |
| 293 | .set_fmt = sta529_set_dai_fmt, |
| 294 | .digital_mute = sta529_mute, |
| 295 | }; |
| 296 | |
| 297 | static struct snd_soc_dai_driver sta529_dai = { |
| 298 | .name = "sta529-audio", |
| 299 | .playback = { |
| 300 | .stream_name = "Playback", |
| 301 | .channels_min = 2, |
| 302 | .channels_max = 2, |
| 303 | .rates = STA529_RATES, |
| 304 | .formats = STA529_FORMAT, |
| 305 | }, |
| 306 | .capture = { |
| 307 | .stream_name = "Capture", |
| 308 | .channels_min = 2, |
| 309 | .channels_max = 2, |
| 310 | .rates = STA529_RATES, |
| 311 | .formats = STA529_FORMAT, |
| 312 | }, |
| 313 | .ops = &sta529_dai_ops, |
| 314 | }; |
| 315 | |
Mark Brown | 1427cc3 | 2012-08-01 19:25:50 +0100 | [diff] [blame] | 316 | static const struct snd_soc_codec_driver sta529_codec_driver = { |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 317 | .set_bias_level = sta529_set_bias_level, |
Lars-Peter Clausen | cfbb77c | 2014-10-20 10:56:38 +0200 | [diff] [blame] | 318 | .suspend_bias_off = true, |
| 319 | |
Kuninori Morimoto | 29926fc | 2016-08-08 09:25:03 +0000 | [diff] [blame^] | 320 | .component_driver = { |
| 321 | .controls = sta529_snd_controls, |
| 322 | .num_controls = ARRAY_SIZE(sta529_snd_controls), |
| 323 | }, |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 324 | }; |
| 325 | |
| 326 | static const struct regmap_config sta529_regmap = { |
| 327 | .reg_bits = 8, |
| 328 | .val_bits = 8, |
| 329 | |
| 330 | .max_register = STA529_MAX_REGISTER, |
| 331 | .readable_reg = sta529_readable, |
| 332 | |
| 333 | .cache_type = REGCACHE_RBTREE, |
| 334 | .reg_defaults = sta529_reg_defaults, |
| 335 | .num_reg_defaults = ARRAY_SIZE(sta529_reg_defaults), |
| 336 | }; |
| 337 | |
Bill Pemberton | 7a79e94 | 2012-12-07 09:26:37 -0500 | [diff] [blame] | 338 | static int sta529_i2c_probe(struct i2c_client *i2c, |
| 339 | const struct i2c_device_id *id) |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 340 | { |
| 341 | struct sta529 *sta529; |
| 342 | int ret; |
| 343 | |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 344 | sta529 = devm_kzalloc(&i2c->dev, sizeof(struct sta529), GFP_KERNEL); |
Sachin Kamat | 5c1573a | 2014-06-20 15:29:00 +0530 | [diff] [blame] | 345 | if (!sta529) |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 346 | return -ENOMEM; |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 347 | |
| 348 | sta529->regmap = devm_regmap_init_i2c(i2c, &sta529_regmap); |
| 349 | if (IS_ERR(sta529->regmap)) { |
Dan Carpenter | f96985e3 | 2012-07-11 09:41:23 +0300 | [diff] [blame] | 350 | ret = PTR_ERR(sta529->regmap); |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 351 | dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); |
Dan Carpenter | f96985e3 | 2012-07-11 09:41:23 +0300 | [diff] [blame] | 352 | return ret; |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | i2c_set_clientdata(i2c, sta529); |
| 356 | |
| 357 | ret = snd_soc_register_codec(&i2c->dev, |
| 358 | &sta529_codec_driver, &sta529_dai, 1); |
| 359 | if (ret != 0) |
| 360 | dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); |
| 361 | |
| 362 | return ret; |
| 363 | } |
| 364 | |
Bill Pemberton | 7a79e94 | 2012-12-07 09:26:37 -0500 | [diff] [blame] | 365 | static int sta529_i2c_remove(struct i2c_client *client) |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 366 | { |
| 367 | snd_soc_unregister_codec(&client->dev); |
| 368 | |
| 369 | return 0; |
| 370 | } |
| 371 | |
| 372 | static const struct i2c_device_id sta529_i2c_id[] = { |
| 373 | { "sta529", 0 }, |
| 374 | { } |
| 375 | }; |
| 376 | MODULE_DEVICE_TABLE(i2c, sta529_i2c_id); |
| 377 | |
| 378 | static struct i2c_driver sta529_i2c_driver = { |
| 379 | .driver = { |
| 380 | .name = "sta529", |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 381 | }, |
| 382 | .probe = sta529_i2c_probe, |
Bill Pemberton | 7a79e94 | 2012-12-07 09:26:37 -0500 | [diff] [blame] | 383 | .remove = sta529_i2c_remove, |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 384 | .id_table = sta529_i2c_id, |
| 385 | }; |
| 386 | |
| 387 | module_i2c_driver(sta529_i2c_driver); |
| 388 | |
| 389 | MODULE_DESCRIPTION("ASoC STA529 codec driver"); |
Rajeev Kumar | b794dbc | 2014-09-09 12:27:19 +0530 | [diff] [blame] | 390 | MODULE_AUTHOR("Rajeev Kumar <rajeevkumar.linux@gmail.com>"); |
Rajeev Kumar | 3be58db | 2012-07-04 16:11:12 +0530 | [diff] [blame] | 391 | MODULE_LICENSE("GPL"); |