Kuninori Morimoto | e028937 | 2018-07-30 07:53:08 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | // |
| 3 | // ak4613.c -- Asahi Kasei ALSA Soc Audio driver |
| 4 | // |
| 5 | // Copyright (C) 2015 Renesas Electronics Corporation |
| 6 | // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 7 | // |
| 8 | // Based on ak4642.c by Kuninori Morimoto |
| 9 | // Based on wm8731.c by Richard Purdie |
| 10 | // Based on ak4535.c by Richard Purdie |
| 11 | // Based on wm8753.c by Liam Girdwood |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 12 | |
| 13 | #include <linux/clk.h> |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 14 | #include <linux/delay.h> |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 15 | #include <linux/i2c.h> |
| 16 | #include <linux/slab.h> |
| 17 | #include <linux/of_device.h> |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/regmap.h> |
| 20 | #include <sound/soc.h> |
| 21 | #include <sound/pcm_params.h> |
Kuninori Morimoto | e3a4d95 | 2015-09-18 00:52:44 +0000 | [diff] [blame] | 22 | #include <sound/tlv.h> |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 23 | |
| 24 | #define PW_MGMT1 0x00 /* Power Management 1 */ |
| 25 | #define PW_MGMT2 0x01 /* Power Management 2 */ |
| 26 | #define PW_MGMT3 0x02 /* Power Management 3 */ |
| 27 | #define CTRL1 0x03 /* Control 1 */ |
| 28 | #define CTRL2 0x04 /* Control 2 */ |
| 29 | #define DEMP1 0x05 /* De-emphasis1 */ |
| 30 | #define DEMP2 0x06 /* De-emphasis2 */ |
| 31 | #define OFD 0x07 /* Overflow Detect */ |
| 32 | #define ZRD 0x08 /* Zero Detect */ |
| 33 | #define ICTRL 0x09 /* Input Control */ |
| 34 | #define OCTRL 0x0a /* Output Control */ |
| 35 | #define LOUT1 0x0b /* LOUT1 Volume Control */ |
| 36 | #define ROUT1 0x0c /* ROUT1 Volume Control */ |
| 37 | #define LOUT2 0x0d /* LOUT2 Volume Control */ |
| 38 | #define ROUT2 0x0e /* ROUT2 Volume Control */ |
| 39 | #define LOUT3 0x0f /* LOUT3 Volume Control */ |
| 40 | #define ROUT3 0x10 /* ROUT3 Volume Control */ |
| 41 | #define LOUT4 0x11 /* LOUT4 Volume Control */ |
| 42 | #define ROUT4 0x12 /* ROUT4 Volume Control */ |
| 43 | #define LOUT5 0x13 /* LOUT5 Volume Control */ |
| 44 | #define ROUT5 0x14 /* ROUT5 Volume Control */ |
| 45 | #define LOUT6 0x15 /* LOUT6 Volume Control */ |
| 46 | #define ROUT6 0x16 /* ROUT6 Volume Control */ |
| 47 | |
| 48 | /* PW_MGMT1 */ |
| 49 | #define RSTN BIT(0) |
| 50 | #define PMDAC BIT(1) |
| 51 | #define PMADC BIT(2) |
| 52 | #define PMVR BIT(3) |
| 53 | |
| 54 | /* PW_MGMT2 */ |
| 55 | #define PMAD_ALL 0x7 |
| 56 | |
| 57 | /* PW_MGMT3 */ |
| 58 | #define PMDA_ALL 0x3f |
| 59 | |
| 60 | /* CTRL1 */ |
| 61 | #define DIF0 BIT(3) |
| 62 | #define DIF1 BIT(4) |
| 63 | #define DIF2 BIT(5) |
| 64 | #define TDM0 BIT(6) |
| 65 | #define TDM1 BIT(7) |
| 66 | #define NO_FMT (0xff) |
| 67 | #define FMT_MASK (0xf8) |
| 68 | |
| 69 | /* CTRL2 */ |
Kuninori Morimoto | b323dd3 | 2015-11-17 08:28:56 +0000 | [diff] [blame] | 70 | #define DFS_MASK (3 << 2) |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 71 | #define DFS_NORMAL_SPEED (0 << 2) |
| 72 | #define DFS_DOUBLE_SPEED (1 << 2) |
| 73 | #define DFS_QUAD_SPEED (2 << 2) |
| 74 | |
Kuninori Morimoto | 4898b61 | 2017-04-19 00:40:38 +0000 | [diff] [blame] | 75 | /* ICTRL */ |
| 76 | #define ICTRL_MASK (0x3) |
| 77 | |
| 78 | /* OCTRL */ |
| 79 | #define OCTRL_MASK (0x3F) |
| 80 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 81 | struct ak4613_formats { |
| 82 | unsigned int width; |
| 83 | unsigned int fmt; |
| 84 | }; |
| 85 | |
| 86 | struct ak4613_interface { |
| 87 | struct ak4613_formats capture; |
| 88 | struct ak4613_formats playback; |
| 89 | }; |
| 90 | |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 91 | struct ak4613_priv { |
| 92 | struct mutex lock; |
| 93 | const struct ak4613_interface *iface; |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 94 | struct snd_pcm_hw_constraint_list constraint; |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 95 | struct work_struct dummy_write_work; |
| 96 | struct snd_soc_component *component; |
| 97 | unsigned int rate; |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 98 | unsigned int sysclk; |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 99 | |
| 100 | unsigned int fmt; |
| 101 | u8 oc; |
| 102 | u8 ic; |
| 103 | int cnt; |
| 104 | }; |
| 105 | |
Kuninori Morimoto | e3a4d95 | 2015-09-18 00:52:44 +0000 | [diff] [blame] | 106 | /* |
| 107 | * Playback Volume |
| 108 | * |
| 109 | * max : 0x00 : 0 dB |
| 110 | * ( 0.5 dB step ) |
| 111 | * min : 0xFE : -127.0 dB |
| 112 | * mute: 0xFF |
| 113 | */ |
| 114 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1); |
| 115 | |
| 116 | static const struct snd_kcontrol_new ak4613_snd_controls[] = { |
| 117 | SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1, |
| 118 | 0, 0xFF, 1, out_tlv), |
| 119 | SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2, |
| 120 | 0, 0xFF, 1, out_tlv), |
| 121 | SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3, |
| 122 | 0, 0xFF, 1, out_tlv), |
| 123 | SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4, |
| 124 | 0, 0xFF, 1, out_tlv), |
| 125 | SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5, |
| 126 | 0, 0xFF, 1, out_tlv), |
| 127 | SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6, |
| 128 | 0, 0xFF, 1, out_tlv), |
| 129 | }; |
| 130 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 131 | static const struct reg_default ak4613_reg[] = { |
| 132 | { 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 }, |
| 133 | { 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 }, |
| 134 | { 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 }, |
| 135 | { 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 }, |
| 136 | { 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 }, |
| 137 | { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 }, |
| 138 | }; |
| 139 | |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 140 | #define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3) |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 141 | #define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt } |
| 142 | static const struct ak4613_interface ak4613_iface[] = { |
| 143 | /* capture */ /* playback */ |
Kuninori Morimoto | ec185f9 | 2017-05-08 02:28:13 +0000 | [diff] [blame] | 144 | /* [0] - [2] are not supported */ |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 145 | [3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) }, |
| 146 | [4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) }, |
| 147 | }; |
| 148 | |
| 149 | static const struct regmap_config ak4613_regmap_cfg = { |
| 150 | .reg_bits = 8, |
| 151 | .val_bits = 8, |
| 152 | .max_register = 0x16, |
| 153 | .reg_defaults = ak4613_reg, |
| 154 | .num_reg_defaults = ARRAY_SIZE(ak4613_reg), |
Geert Uytterhoeven | dcd2d1f | 2016-06-16 14:34:30 +0200 | [diff] [blame] | 155 | .cache_type = REGCACHE_RBTREE, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 156 | }; |
| 157 | |
| 158 | static const struct of_device_id ak4613_of_match[] = { |
| 159 | { .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg }, |
| 160 | {}, |
| 161 | }; |
| 162 | MODULE_DEVICE_TABLE(of, ak4613_of_match); |
| 163 | |
| 164 | static const struct i2c_device_id ak4613_i2c_id[] = { |
| 165 | { "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg }, |
| 166 | { } |
| 167 | }; |
| 168 | MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id); |
| 169 | |
| 170 | static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = { |
| 171 | |
| 172 | /* Outputs */ |
| 173 | SND_SOC_DAPM_OUTPUT("LOUT1"), |
| 174 | SND_SOC_DAPM_OUTPUT("LOUT2"), |
| 175 | SND_SOC_DAPM_OUTPUT("LOUT3"), |
| 176 | SND_SOC_DAPM_OUTPUT("LOUT4"), |
| 177 | SND_SOC_DAPM_OUTPUT("LOUT5"), |
| 178 | SND_SOC_DAPM_OUTPUT("LOUT6"), |
| 179 | |
| 180 | SND_SOC_DAPM_OUTPUT("ROUT1"), |
| 181 | SND_SOC_DAPM_OUTPUT("ROUT2"), |
| 182 | SND_SOC_DAPM_OUTPUT("ROUT3"), |
| 183 | SND_SOC_DAPM_OUTPUT("ROUT4"), |
| 184 | SND_SOC_DAPM_OUTPUT("ROUT5"), |
| 185 | SND_SOC_DAPM_OUTPUT("ROUT6"), |
| 186 | |
| 187 | /* Inputs */ |
| 188 | SND_SOC_DAPM_INPUT("LIN1"), |
| 189 | SND_SOC_DAPM_INPUT("LIN2"), |
| 190 | |
| 191 | SND_SOC_DAPM_INPUT("RIN1"), |
| 192 | SND_SOC_DAPM_INPUT("RIN2"), |
| 193 | |
| 194 | /* DAC */ |
| 195 | SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0), |
| 196 | SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0), |
| 197 | SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0), |
| 198 | SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0), |
| 199 | SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0), |
| 200 | SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0), |
| 201 | |
| 202 | /* ADC */ |
| 203 | SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0), |
| 204 | SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0), |
| 205 | }; |
| 206 | |
| 207 | static const struct snd_soc_dapm_route ak4613_intercon[] = { |
| 208 | {"LOUT1", NULL, "DAC1"}, |
| 209 | {"LOUT2", NULL, "DAC2"}, |
| 210 | {"LOUT3", NULL, "DAC3"}, |
| 211 | {"LOUT4", NULL, "DAC4"}, |
| 212 | {"LOUT5", NULL, "DAC5"}, |
| 213 | {"LOUT6", NULL, "DAC6"}, |
| 214 | |
| 215 | {"ROUT1", NULL, "DAC1"}, |
| 216 | {"ROUT2", NULL, "DAC2"}, |
| 217 | {"ROUT3", NULL, "DAC3"}, |
| 218 | {"ROUT4", NULL, "DAC4"}, |
| 219 | {"ROUT5", NULL, "DAC5"}, |
| 220 | {"ROUT6", NULL, "DAC6"}, |
| 221 | |
| 222 | {"DAC1", NULL, "Playback"}, |
| 223 | {"DAC2", NULL, "Playback"}, |
| 224 | {"DAC3", NULL, "Playback"}, |
| 225 | {"DAC4", NULL, "Playback"}, |
| 226 | {"DAC5", NULL, "Playback"}, |
| 227 | {"DAC6", NULL, "Playback"}, |
| 228 | |
| 229 | {"Capture", NULL, "ADC1"}, |
| 230 | {"Capture", NULL, "ADC2"}, |
| 231 | |
| 232 | {"ADC1", NULL, "LIN1"}, |
| 233 | {"ADC2", NULL, "LIN2"}, |
| 234 | |
| 235 | {"ADC1", NULL, "RIN1"}, |
| 236 | {"ADC2", NULL, "RIN2"}, |
| 237 | }; |
| 238 | |
| 239 | static void ak4613_dai_shutdown(struct snd_pcm_substream *substream, |
| 240 | struct snd_soc_dai *dai) |
| 241 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 242 | struct snd_soc_component *component = dai->component; |
| 243 | struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); |
| 244 | struct device *dev = component->dev; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 245 | |
| 246 | mutex_lock(&priv->lock); |
| 247 | priv->cnt--; |
| 248 | if (priv->cnt < 0) { |
| 249 | dev_err(dev, "unexpected counter error\n"); |
| 250 | priv->cnt = 0; |
| 251 | } |
| 252 | if (!priv->cnt) |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 253 | priv->iface = NULL; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 254 | mutex_unlock(&priv->lock); |
| 255 | } |
| 256 | |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 257 | static void ak4613_hw_constraints(struct ak4613_priv *priv, |
| 258 | struct snd_pcm_runtime *runtime) |
| 259 | { |
| 260 | static const unsigned int ak4613_rates[] = { |
| 261 | 32000, |
| 262 | 44100, |
| 263 | 48000, |
| 264 | 64000, |
| 265 | 88200, |
| 266 | 96000, |
| 267 | 176400, |
| 268 | 192000, |
| 269 | }; |
| 270 | struct snd_pcm_hw_constraint_list *constraint = &priv->constraint; |
| 271 | unsigned int fs; |
| 272 | int i; |
| 273 | |
| 274 | constraint->list = ak4613_rates; |
| 275 | constraint->mask = 0; |
| 276 | constraint->count = 0; |
| 277 | |
| 278 | /* |
| 279 | * Slave Mode |
| 280 | * Normal: [32kHz, 48kHz] : 256fs,384fs or 512fs |
| 281 | * Double: [64kHz, 96kHz] : 256fs |
| 282 | * Quad : [128kHz,192kHz]: 128fs |
| 283 | * |
| 284 | * Master mode |
| 285 | * Normal: [32kHz, 48kHz] : 256fs or 512fs |
| 286 | * Double: [64kHz, 96kHz] : 256fs |
| 287 | * Quad : [128kHz,192kHz]: 128fs |
| 288 | */ |
| 289 | for (i = 0; i < ARRAY_SIZE(ak4613_rates); i++) { |
| 290 | /* minimum fs on each range */ |
| 291 | fs = (ak4613_rates[i] <= 96000) ? 256 : 128; |
| 292 | |
| 293 | if (priv->sysclk >= ak4613_rates[i] * fs) |
| 294 | constraint->count = i + 1; |
| 295 | } |
| 296 | |
| 297 | snd_pcm_hw_constraint_list(runtime, 0, |
| 298 | SNDRV_PCM_HW_PARAM_RATE, constraint); |
| 299 | } |
| 300 | |
Ryo Kodama | 4116529 | 2017-06-07 14:39:00 +0900 | [diff] [blame] | 301 | static int ak4613_dai_startup(struct snd_pcm_substream *substream, |
| 302 | struct snd_soc_dai *dai) |
| 303 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 304 | struct snd_soc_component *component = dai->component; |
| 305 | struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); |
Ryo Kodama | 4116529 | 2017-06-07 14:39:00 +0900 | [diff] [blame] | 306 | |
| 307 | priv->cnt++; |
| 308 | |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 309 | ak4613_hw_constraints(priv, substream->runtime); |
| 310 | |
| 311 | return 0; |
| 312 | } |
| 313 | |
| 314 | static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai, |
| 315 | int clk_id, unsigned int freq, int dir) |
| 316 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 317 | struct snd_soc_component *component = codec_dai->component; |
| 318 | struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 319 | |
| 320 | priv->sysclk = freq; |
| 321 | |
Ryo Kodama | 4116529 | 2017-06-07 14:39:00 +0900 | [diff] [blame] | 322 | return 0; |
| 323 | } |
| 324 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 325 | static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
| 326 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 327 | struct snd_soc_component *component = dai->component; |
| 328 | struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 329 | |
| 330 | fmt &= SND_SOC_DAIFMT_FORMAT_MASK; |
| 331 | |
| 332 | switch (fmt) { |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 333 | case SND_SOC_DAIFMT_LEFT_J: |
| 334 | case SND_SOC_DAIFMT_I2S: |
| 335 | priv->fmt = fmt; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 336 | break; |
| 337 | default: |
| 338 | return -EINVAL; |
| 339 | } |
| 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 344 | static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface, |
| 345 | int is_play, |
| 346 | unsigned int fmt, unsigned int width) |
| 347 | { |
| 348 | const struct ak4613_formats *fmts; |
| 349 | |
| 350 | fmts = (is_play) ? &iface->playback : &iface->capture; |
| 351 | |
| 352 | if (fmts->fmt != fmt) |
| 353 | return false; |
| 354 | |
Kuninori Morimoto | ec185f9 | 2017-05-08 02:28:13 +0000 | [diff] [blame] | 355 | if (fmts->width != width) |
| 356 | return false; |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 357 | |
| 358 | return true; |
| 359 | } |
| 360 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 361 | static int ak4613_dai_hw_params(struct snd_pcm_substream *substream, |
| 362 | struct snd_pcm_hw_params *params, |
| 363 | struct snd_soc_dai *dai) |
| 364 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 365 | struct snd_soc_component *component = dai->component; |
| 366 | struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 367 | const struct ak4613_interface *iface; |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 368 | struct device *dev = component->dev; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 369 | unsigned int width = params_width(params); |
| 370 | unsigned int fmt = priv->fmt; |
| 371 | unsigned int rate; |
| 372 | int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
| 373 | int i, ret; |
| 374 | u8 fmt_ctrl, ctrl2; |
| 375 | |
| 376 | rate = params_rate(params); |
| 377 | switch (rate) { |
| 378 | case 32000: |
| 379 | case 44100: |
| 380 | case 48000: |
| 381 | ctrl2 = DFS_NORMAL_SPEED; |
| 382 | break; |
Kuninori Morimoto | a83ac48 | 2017-06-14 00:31:06 +0000 | [diff] [blame] | 383 | case 64000: |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 384 | case 88200: |
| 385 | case 96000: |
| 386 | ctrl2 = DFS_DOUBLE_SPEED; |
| 387 | break; |
| 388 | case 176400: |
| 389 | case 192000: |
| 390 | ctrl2 = DFS_QUAD_SPEED; |
| 391 | break; |
| 392 | default: |
| 393 | return -EINVAL; |
| 394 | } |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 395 | priv->rate = rate; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 396 | |
| 397 | /* |
| 398 | * FIXME |
| 399 | * |
| 400 | * It doesn't support TDM at this point |
| 401 | */ |
| 402 | fmt_ctrl = NO_FMT; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 403 | ret = -EINVAL; |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 404 | iface = NULL; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 405 | |
| 406 | mutex_lock(&priv->lock); |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 407 | if (priv->iface) { |
| 408 | if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width)) |
| 409 | iface = priv->iface; |
| 410 | } else { |
Axel Lin | b5f2a48 | 2017-06-09 15:01:21 +0800 | [diff] [blame] | 411 | for (i = ARRAY_SIZE(ak4613_iface) - 1; i >= 0; i--) { |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 412 | if (!ak4613_dai_fmt_matching(ak4613_iface + i, |
| 413 | is_play, |
| 414 | fmt, width)) |
| 415 | continue; |
| 416 | iface = ak4613_iface + i; |
| 417 | break; |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | if ((priv->iface == NULL) || |
| 422 | (priv->iface == iface)) { |
| 423 | priv->iface = iface; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 424 | ret = 0; |
| 425 | } |
| 426 | mutex_unlock(&priv->lock); |
| 427 | |
| 428 | if (ret < 0) |
| 429 | goto hw_params_end; |
| 430 | |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 431 | fmt_ctrl = AUDIO_IFACE_TO_VAL(iface); |
| 432 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 433 | snd_soc_component_update_bits(component, CTRL1, FMT_MASK, fmt_ctrl); |
| 434 | snd_soc_component_update_bits(component, CTRL2, DFS_MASK, ctrl2); |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 435 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 436 | snd_soc_component_update_bits(component, ICTRL, ICTRL_MASK, priv->ic); |
| 437 | snd_soc_component_update_bits(component, OCTRL, OCTRL_MASK, priv->oc); |
Kuninori Morimoto | a3af0c6 | 2015-11-16 04:51:21 +0000 | [diff] [blame] | 438 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 439 | hw_params_end: |
| 440 | if (ret < 0) |
| 441 | dev_warn(dev, "unsupported data width/format combination\n"); |
| 442 | |
| 443 | return ret; |
| 444 | } |
| 445 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 446 | static int ak4613_set_bias_level(struct snd_soc_component *component, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 447 | enum snd_soc_bias_level level) |
| 448 | { |
| 449 | u8 mgmt1 = 0; |
| 450 | |
| 451 | switch (level) { |
| 452 | case SND_SOC_BIAS_ON: |
| 453 | mgmt1 |= RSTN; |
Gustavo A. R. Silva | 3e146b5 | 2020-07-08 20:03:59 -0500 | [diff] [blame] | 454 | fallthrough; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 455 | case SND_SOC_BIAS_PREPARE: |
| 456 | mgmt1 |= PMADC | PMDAC; |
Gustavo A. R. Silva | 3e146b5 | 2020-07-08 20:03:59 -0500 | [diff] [blame] | 457 | fallthrough; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 458 | case SND_SOC_BIAS_STANDBY: |
| 459 | mgmt1 |= PMVR; |
Gustavo A. R. Silva | 3e146b5 | 2020-07-08 20:03:59 -0500 | [diff] [blame] | 460 | fallthrough; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 461 | case SND_SOC_BIAS_OFF: |
| 462 | default: |
| 463 | break; |
| 464 | } |
| 465 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 466 | snd_soc_component_write(component, PW_MGMT1, mgmt1); |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 467 | |
| 468 | return 0; |
| 469 | } |
| 470 | |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 471 | static void ak4613_dummy_write(struct work_struct *work) |
| 472 | { |
| 473 | struct ak4613_priv *priv = container_of(work, |
| 474 | struct ak4613_priv, |
| 475 | dummy_write_work); |
| 476 | struct snd_soc_component *component = priv->component; |
| 477 | unsigned int mgmt1; |
| 478 | unsigned int mgmt3; |
| 479 | |
| 480 | /* |
| 481 | * PW_MGMT1 / PW_MGMT3 needs dummy write at least after 5 LR clocks |
| 482 | * |
| 483 | * Note |
| 484 | * |
| 485 | * To avoid extra delay, we want to avoid preemption here, |
| 486 | * but we can't. Because it uses I2C access which is using IRQ |
| 487 | * and sleep. Thus, delay might be more than 5 LR clocks |
| 488 | * see also |
| 489 | * ak4613_dai_trigger() |
| 490 | */ |
| 491 | udelay(5000000 / priv->rate); |
| 492 | |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 493 | mgmt1 = snd_soc_component_read(component, PW_MGMT1); |
| 494 | mgmt3 = snd_soc_component_read(component, PW_MGMT3); |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 495 | |
| 496 | snd_soc_component_write(component, PW_MGMT1, mgmt1); |
| 497 | snd_soc_component_write(component, PW_MGMT3, mgmt3); |
| 498 | } |
| 499 | |
| 500 | static int ak4613_dai_trigger(struct snd_pcm_substream *substream, int cmd, |
| 501 | struct snd_soc_dai *dai) |
| 502 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 503 | struct snd_soc_component *component = dai->component; |
| 504 | struct ak4613_priv *priv = snd_soc_component_get_drvdata(component); |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 505 | |
| 506 | /* |
| 507 | * FIXME |
| 508 | * |
| 509 | * PW_MGMT1 / PW_MGMT3 needs dummy write at least after 5 LR clocks |
| 510 | * from Power Down Release. Otherwise, Playback volume will be 0dB. |
| 511 | * To avoid complex multiple delay/dummy_write method from |
| 512 | * ak4613_set_bias_level() / SND_SOC_DAPM_DAC_E("DACx", ...), |
| 513 | * call it once here. |
| 514 | * |
| 515 | * But, unfortunately, we can't "write" here because here is atomic |
| 516 | * context (It uses I2C access for writing). |
| 517 | * Thus, use schedule_work() to switching to normal context |
| 518 | * immediately. |
| 519 | * |
| 520 | * Note |
| 521 | * |
| 522 | * Calling ak4613_dummy_write() function might be delayed. |
| 523 | * In such case, ak4613 volume might be temporarily 0dB when |
| 524 | * beggining of playback. |
| 525 | * see also |
| 526 | * ak4613_dummy_write() |
| 527 | */ |
| 528 | |
| 529 | if ((cmd != SNDRV_PCM_TRIGGER_START) && |
| 530 | (cmd != SNDRV_PCM_TRIGGER_RESUME)) |
| 531 | return 0; |
| 532 | |
| 533 | if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) |
| 534 | return 0; |
| 535 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 536 | priv->component = component; |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 537 | schedule_work(&priv->dummy_write_work); |
| 538 | |
| 539 | return 0; |
| 540 | } |
| 541 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 542 | static const struct snd_soc_dai_ops ak4613_dai_ops = { |
Ryo Kodama | 4116529 | 2017-06-07 14:39:00 +0900 | [diff] [blame] | 543 | .startup = ak4613_dai_startup, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 544 | .shutdown = ak4613_dai_shutdown, |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 545 | .set_sysclk = ak4613_dai_set_sysclk, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 546 | .set_fmt = ak4613_dai_set_fmt, |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 547 | .trigger = ak4613_dai_trigger, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 548 | .hw_params = ak4613_dai_hw_params, |
| 549 | }; |
| 550 | |
| 551 | #define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\ |
| 552 | SNDRV_PCM_RATE_44100 |\ |
| 553 | SNDRV_PCM_RATE_48000 |\ |
| 554 | SNDRV_PCM_RATE_64000 |\ |
| 555 | SNDRV_PCM_RATE_88200 |\ |
| 556 | SNDRV_PCM_RATE_96000 |\ |
| 557 | SNDRV_PCM_RATE_176400 |\ |
| 558 | SNDRV_PCM_RATE_192000) |
Kuninori Morimoto | ec185f9 | 2017-05-08 02:28:13 +0000 | [diff] [blame] | 559 | #define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S24_LE) |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 560 | |
| 561 | static struct snd_soc_dai_driver ak4613_dai = { |
| 562 | .name = "ak4613-hifi", |
| 563 | .playback = { |
| 564 | .stream_name = "Playback", |
| 565 | .channels_min = 2, |
| 566 | .channels_max = 2, |
| 567 | .rates = AK4613_PCM_RATE, |
| 568 | .formats = AK4613_PCM_FMTBIT, |
| 569 | }, |
| 570 | .capture = { |
| 571 | .stream_name = "Capture", |
| 572 | .channels_min = 2, |
| 573 | .channels_max = 2, |
| 574 | .rates = AK4613_PCM_RATE, |
| 575 | .formats = AK4613_PCM_FMTBIT, |
| 576 | }, |
| 577 | .ops = &ak4613_dai_ops, |
| 578 | .symmetric_rates = 1, |
| 579 | }; |
| 580 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 581 | static int ak4613_suspend(struct snd_soc_component *component) |
Geert Uytterhoeven | f9ae17b | 2016-06-16 14:34:31 +0200 | [diff] [blame] | 582 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 583 | struct regmap *regmap = dev_get_regmap(component->dev, NULL); |
Geert Uytterhoeven | f9ae17b | 2016-06-16 14:34:31 +0200 | [diff] [blame] | 584 | |
| 585 | regcache_cache_only(regmap, true); |
| 586 | regcache_mark_dirty(regmap); |
| 587 | return 0; |
| 588 | } |
| 589 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 590 | static int ak4613_resume(struct snd_soc_component *component) |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 591 | { |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 592 | struct regmap *regmap = dev_get_regmap(component->dev, NULL); |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 593 | |
Geert Uytterhoeven | f9ae17b | 2016-06-16 14:34:31 +0200 | [diff] [blame] | 594 | regcache_cache_only(regmap, false); |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 595 | return regcache_sync(regmap); |
| 596 | } |
| 597 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 598 | static const struct snd_soc_component_driver soc_component_dev_ak4613 = { |
Geert Uytterhoeven | f9ae17b | 2016-06-16 14:34:31 +0200 | [diff] [blame] | 599 | .suspend = ak4613_suspend, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 600 | .resume = ak4613_resume, |
| 601 | .set_bias_level = ak4613_set_bias_level, |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 602 | .controls = ak4613_snd_controls, |
| 603 | .num_controls = ARRAY_SIZE(ak4613_snd_controls), |
| 604 | .dapm_widgets = ak4613_dapm_widgets, |
| 605 | .num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets), |
| 606 | .dapm_routes = ak4613_intercon, |
| 607 | .num_dapm_routes = ARRAY_SIZE(ak4613_intercon), |
| 608 | .idle_bias_on = 1, |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 609 | .endianness = 1, |
| 610 | .non_legacy_dai_naming = 1, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 611 | }; |
| 612 | |
Kuninori Morimoto | a3af0c6 | 2015-11-16 04:51:21 +0000 | [diff] [blame] | 613 | static void ak4613_parse_of(struct ak4613_priv *priv, |
| 614 | struct device *dev) |
| 615 | { |
| 616 | struct device_node *np = dev->of_node; |
| 617 | char prop[32]; |
| 618 | int i; |
| 619 | |
| 620 | /* Input 1 - 2 */ |
| 621 | for (i = 0; i < 2; i++) { |
Kuninori Morimoto | 5547ba6 | 2015-11-19 04:22:14 +0000 | [diff] [blame] | 622 | snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1); |
Kuninori Morimoto | a3af0c6 | 2015-11-16 04:51:21 +0000 | [diff] [blame] | 623 | if (!of_get_property(np, prop, NULL)) |
| 624 | priv->ic |= 1 << i; |
| 625 | } |
| 626 | |
| 627 | /* Output 1 - 6 */ |
| 628 | for (i = 0; i < 6; i++) { |
Kuninori Morimoto | 5547ba6 | 2015-11-19 04:22:14 +0000 | [diff] [blame] | 629 | snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1); |
Kuninori Morimoto | a3af0c6 | 2015-11-16 04:51:21 +0000 | [diff] [blame] | 630 | if (!of_get_property(np, prop, NULL)) |
| 631 | priv->oc |= 1 << i; |
| 632 | } |
| 633 | } |
| 634 | |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 635 | static int ak4613_i2c_probe(struct i2c_client *i2c, |
| 636 | const struct i2c_device_id *id) |
| 637 | { |
| 638 | struct device *dev = &i2c->dev; |
| 639 | struct device_node *np = dev->of_node; |
| 640 | const struct regmap_config *regmap_cfg; |
| 641 | struct regmap *regmap; |
| 642 | struct ak4613_priv *priv; |
| 643 | |
| 644 | regmap_cfg = NULL; |
| 645 | if (np) { |
| 646 | const struct of_device_id *of_id; |
| 647 | |
| 648 | of_id = of_match_device(ak4613_of_match, dev); |
| 649 | if (of_id) |
| 650 | regmap_cfg = of_id->data; |
| 651 | } else { |
| 652 | regmap_cfg = (const struct regmap_config *)id->driver_data; |
| 653 | } |
| 654 | |
| 655 | if (!regmap_cfg) |
| 656 | return -EINVAL; |
| 657 | |
| 658 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); |
| 659 | if (!priv) |
| 660 | return -ENOMEM; |
| 661 | |
Kuninori Morimoto | a3af0c6 | 2015-11-16 04:51:21 +0000 | [diff] [blame] | 662 | ak4613_parse_of(priv, dev); |
| 663 | |
Kuninori Morimoto | 35299f1 | 2015-11-16 06:01:29 +0000 | [diff] [blame] | 664 | priv->iface = NULL; |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 665 | priv->cnt = 0; |
Kuninori Morimoto | 907cd88 | 2017-06-16 01:47:34 +0000 | [diff] [blame] | 666 | priv->sysclk = 0; |
Kuninori Morimoto | 03bbf9f | 2018-01-24 05:11:42 +0000 | [diff] [blame] | 667 | INIT_WORK(&priv->dummy_write_work, ak4613_dummy_write); |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 668 | |
| 669 | mutex_init(&priv->lock); |
| 670 | |
| 671 | i2c_set_clientdata(i2c, priv); |
| 672 | |
| 673 | regmap = devm_regmap_init_i2c(i2c, regmap_cfg); |
| 674 | if (IS_ERR(regmap)) |
| 675 | return PTR_ERR(regmap); |
| 676 | |
Kuninori Morimoto | 9123ea9 | 2018-01-29 03:12:39 +0000 | [diff] [blame] | 677 | return devm_snd_soc_register_component(dev, &soc_component_dev_ak4613, |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 678 | &ak4613_dai, 1); |
| 679 | } |
| 680 | |
| 681 | static int ak4613_i2c_remove(struct i2c_client *client) |
| 682 | { |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 683 | return 0; |
| 684 | } |
| 685 | |
| 686 | static struct i2c_driver ak4613_i2c_driver = { |
| 687 | .driver = { |
| 688 | .name = "ak4613-codec", |
Kuninori Morimoto | b075706 | 2015-09-15 08:26:36 +0000 | [diff] [blame] | 689 | .of_match_table = ak4613_of_match, |
| 690 | }, |
| 691 | .probe = ak4613_i2c_probe, |
| 692 | .remove = ak4613_i2c_remove, |
| 693 | .id_table = ak4613_i2c_id, |
| 694 | }; |
| 695 | |
| 696 | module_i2c_driver(ak4613_i2c_driver); |
| 697 | |
| 698 | MODULE_DESCRIPTION("Soc AK4613 driver"); |
| 699 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |
| 700 | MODULE_LICENSE("GPL v2"); |