| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* |
| 3 | * stac9766.c -- ALSA SoC STAC9766 codec support |
| 4 | * |
| 5 | * Copyright 2009 Jon Smirl, Digispeaker |
| 6 | * Author: Jon Smirl <jonsmirl@gmail.com> |
| 7 | * |
| 8 | * Features:- |
| 9 | * |
| 10 | * o Support for AC97 Codec, S/PDIF |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/slab.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/device.h> |
| 17 | #include <linux/regmap.h> |
| 18 | #include <sound/core.h> |
| 19 | #include <sound/pcm.h> |
| 20 | #include <sound/ac97_codec.h> |
| 21 | #include <sound/initval.h> |
| 22 | #include <sound/pcm_params.h> |
| 23 | #include <sound/soc.h> |
| 24 | #include <sound/tlv.h> |
| 25 | |
| 26 | #define STAC9766_VENDOR_ID 0x83847666 |
| 27 | #define STAC9766_VENDOR_ID_MASK 0xffffffff |
| 28 | |
| 29 | #define AC97_STAC_DA_CONTROL 0x6A |
| 30 | #define AC97_STAC_ANALOG_SPECIAL 0x6E |
| 31 | #define AC97_STAC_STEREO_MIC 0x78 |
| 32 | |
| 33 | static const struct reg_default stac9766_reg_defaults[] = { |
| 34 | { 0x02, 0x8000 }, |
| 35 | { 0x04, 0x8000 }, |
| 36 | { 0x06, 0x8000 }, |
| 37 | { 0x0a, 0x0000 }, |
| 38 | { 0x0c, 0x8008 }, |
| 39 | { 0x0e, 0x8008 }, |
| 40 | { 0x10, 0x8808 }, |
| 41 | { 0x12, 0x8808 }, |
| 42 | { 0x14, 0x8808 }, |
| 43 | { 0x16, 0x8808 }, |
| 44 | { 0x18, 0x8808 }, |
| 45 | { 0x1a, 0x0000 }, |
| 46 | { 0x1c, 0x8000 }, |
| 47 | { 0x20, 0x0000 }, |
| 48 | { 0x22, 0x0000 }, |
| 49 | { 0x28, 0x0a05 }, |
| 50 | { 0x2c, 0xbb80 }, |
| 51 | { 0x32, 0xbb80 }, |
| 52 | { 0x3a, 0x2000 }, |
| 53 | { 0x3e, 0x0100 }, |
| 54 | { 0x4c, 0x0300 }, |
| 55 | { 0x4e, 0xffff }, |
| 56 | { 0x50, 0x0000 }, |
| 57 | { 0x52, 0x0000 }, |
| 58 | { 0x54, 0x0000 }, |
| 59 | { 0x6a, 0x0000 }, |
| 60 | { 0x6e, 0x1000 }, |
| 61 | { 0x72, 0x0000 }, |
| 62 | { 0x78, 0x0000 }, |
| 63 | }; |
| 64 | |
| 65 | static const struct regmap_config stac9766_regmap_config = { |
| 66 | .reg_bits = 16, |
| 67 | .reg_stride = 2, |
| 68 | .val_bits = 16, |
| 69 | .max_register = 0x78, |
| 70 | .cache_type = REGCACHE_MAPLE, |
| 71 | |
| 72 | .volatile_reg = regmap_ac97_default_volatile, |
| 73 | |
| 74 | .reg_defaults = stac9766_reg_defaults, |
| 75 | .num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults), |
| 76 | }; |
| 77 | |
| 78 | static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX", |
| 79 | "Line", "Stereo Mix", "Mono Mix", "Phone"}; |
| 80 | static const char *stac9766_mono_mux[] = {"Mix", "Mic"}; |
| 81 | static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"}; |
| 82 | static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"}; |
| 83 | static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"}; |
| 84 | static const char *stac9766_record_all_mux[] = {"All analog", |
| 85 | "Analog plus DAC"}; |
| 86 | static const char *stac9766_boost1[] = {"0dB", "10dB"}; |
| 87 | static const char *stac9766_boost2[] = {"0dB", "20dB"}; |
| 88 | static const char *stac9766_stereo_mic[] = {"Off", "On"}; |
| 89 | |
| 90 | static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum, |
| 91 | AC97_REC_SEL, 8, 0, stac9766_record_mux); |
| 92 | static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum, |
| 93 | AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux); |
| 94 | static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum, |
| 95 | AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux); |
| 96 | static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum, |
| 97 | AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux); |
| 98 | static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum, |
| 99 | AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux); |
| 100 | static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum, |
| 101 | AC97_STAC_ANALOG_SPECIAL, 12, |
| 102 | stac9766_record_all_mux); |
| 103 | static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum, |
| 104 | AC97_MIC, 6, stac9766_boost1); /* 0/10dB */ |
| 105 | static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum, |
| 106 | AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */ |
| 107 | static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum, |
| 108 | AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic); |
| 109 | |
| 110 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0); |
| 111 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0); |
| 112 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0); |
| 113 | static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0); |
| 114 | |
| 115 | static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = { |
| 116 | SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv), |
| 117 | SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1), |
| 118 | SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1, |
| 119 | master_tlv), |
| 120 | SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1), |
| 121 | SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1, |
| 122 | master_tlv), |
| 123 | SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1), |
| 124 | |
| 125 | SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv), |
| 126 | SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1), |
| 127 | |
| 128 | |
| 129 | SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv), |
| 130 | SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1), |
| 131 | SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1), |
| 132 | SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv), |
| 133 | SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1), |
| 134 | |
| 135 | SOC_ENUM("Mic Boost1", stac9766_boost1_enum), |
| 136 | SOC_ENUM("Mic Boost2", stac9766_boost2_enum), |
| 137 | SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv), |
| 138 | SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1), |
| 139 | SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum), |
| 140 | |
| 141 | SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv), |
| 142 | SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1), |
| 143 | SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv), |
| 144 | SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1), |
| 145 | SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv), |
| 146 | SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1), |
| 147 | SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv), |
| 148 | SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1), |
| 149 | |
| 150 | SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv), |
| 151 | SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1), |
| 152 | SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0), |
| 153 | SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1), |
| 154 | SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0), |
| 155 | |
| 156 | SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum), |
| 157 | SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum), |
| 158 | SOC_ENUM("Record All Mux", stac9766_record_all_enum), |
| 159 | SOC_ENUM("Record Mux", stac9766_record_enum), |
| 160 | SOC_ENUM("Mono Mux", stac9766_mono_enum), |
| 161 | SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum), |
| 162 | }; |
| 163 | |
| 164 | static int ac97_analog_prepare(struct snd_pcm_substream *substream, |
| 165 | struct snd_soc_dai *dai) |
| 166 | { |
| 167 | struct snd_soc_component *component = dai->component; |
| 168 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 169 | unsigned short reg; |
| 170 | |
| 171 | /* enable variable rate audio, disable SPDIF output */ |
| 172 | snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x1); |
| 173 | |
| 174 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 175 | reg = AC97_PCM_FRONT_DAC_RATE; |
| 176 | else |
| 177 | reg = AC97_PCM_LR_ADC_RATE; |
| 178 | |
| 179 | return snd_soc_component_write(component, reg, runtime->rate); |
| 180 | } |
| 181 | |
| 182 | static int ac97_digital_prepare(struct snd_pcm_substream *substream, |
| 183 | struct snd_soc_dai *dai) |
| 184 | { |
| 185 | struct snd_soc_component *component = dai->component; |
| 186 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 187 | unsigned short reg; |
| 188 | |
| 189 | snd_soc_component_write(component, AC97_SPDIF, 0x2002); |
| 190 | |
| 191 | /* Enable VRA and SPDIF out */ |
| 192 | snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x5); |
| 193 | |
| 194 | reg = AC97_PCM_FRONT_DAC_RATE; |
| 195 | |
| 196 | return snd_soc_component_write(component, reg, runtime->rate); |
| 197 | } |
| 198 | |
| 199 | static int stac9766_set_bias_level(struct snd_soc_component *component, |
| 200 | enum snd_soc_bias_level level) |
| 201 | { |
| 202 | switch (level) { |
| 203 | case SND_SOC_BIAS_ON: /* full On */ |
| 204 | case SND_SOC_BIAS_PREPARE: /* partial On */ |
| 205 | case SND_SOC_BIAS_STANDBY: /* Off, with power */ |
| 206 | snd_soc_component_write(component, AC97_POWERDOWN, 0x0000); |
| 207 | break; |
| 208 | case SND_SOC_BIAS_OFF: /* Off, without power */ |
| 209 | /* disable everything including AC link */ |
| 210 | snd_soc_component_write(component, AC97_POWERDOWN, 0xffff); |
| 211 | break; |
| 212 | } |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | static int stac9766_component_resume(struct snd_soc_component *component) |
| 217 | { |
| 218 | struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); |
| 219 | |
| 220 | return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID, |
| 221 | STAC9766_VENDOR_ID_MASK); |
| 222 | } |
| 223 | |
| 224 | static const struct snd_soc_dai_ops stac9766_dai_ops_analog = { |
| 225 | .prepare = ac97_analog_prepare, |
| 226 | }; |
| 227 | |
| 228 | static const struct snd_soc_dai_ops stac9766_dai_ops_digital = { |
| 229 | .prepare = ac97_digital_prepare, |
| 230 | }; |
| 231 | |
| 232 | static struct snd_soc_dai_driver stac9766_dai[] = { |
| 233 | { |
| 234 | .name = "stac9766-hifi-analog", |
| 235 | |
| 236 | /* stream cababilities */ |
| 237 | .playback = { |
| 238 | .stream_name = "stac9766 analog", |
| 239 | .channels_min = 1, |
| 240 | .channels_max = 2, |
| 241 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 242 | .formats = SND_SOC_STD_AC97_FMTS, |
| 243 | }, |
| 244 | .capture = { |
| 245 | .stream_name = "stac9766 analog", |
| 246 | .channels_min = 1, |
| 247 | .channels_max = 2, |
| 248 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 249 | .formats = SND_SOC_STD_AC97_FMTS, |
| 250 | }, |
| 251 | /* alsa ops */ |
| 252 | .ops = &stac9766_dai_ops_analog, |
| 253 | }, |
| 254 | { |
| 255 | .name = "stac9766-hifi-IEC958", |
| 256 | |
| 257 | /* stream cababilities */ |
| 258 | .playback = { |
| 259 | .stream_name = "stac9766 IEC958", |
| 260 | .channels_min = 1, |
| 261 | .channels_max = 2, |
| 262 | .rates = SNDRV_PCM_RATE_32000 | \ |
| 263 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, |
| 264 | .formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, |
| 265 | }, |
| 266 | /* alsa ops */ |
| 267 | .ops = &stac9766_dai_ops_digital, |
| 268 | } |
| 269 | }; |
| 270 | |
| 271 | static int stac9766_component_probe(struct snd_soc_component *component) |
| 272 | { |
| 273 | struct snd_ac97 *ac97; |
| 274 | struct regmap *regmap; |
| 275 | int ret; |
| 276 | |
| 277 | ac97 = snd_soc_new_ac97_component(component, STAC9766_VENDOR_ID, |
| 278 | STAC9766_VENDOR_ID_MASK); |
| 279 | if (IS_ERR(ac97)) |
| 280 | return PTR_ERR(ac97); |
| 281 | |
| 282 | regmap = regmap_init_ac97(ac97, &stac9766_regmap_config); |
| 283 | if (IS_ERR(regmap)) { |
| 284 | ret = PTR_ERR(regmap); |
| 285 | goto err_free_ac97; |
| 286 | } |
| 287 | |
| 288 | snd_soc_component_init_regmap(component, regmap); |
| 289 | snd_soc_component_set_drvdata(component, ac97); |
| 290 | |
| 291 | return 0; |
| 292 | err_free_ac97: |
| 293 | snd_soc_free_ac97_component(ac97); |
| 294 | return ret; |
| 295 | } |
| 296 | |
| 297 | static void stac9766_component_remove(struct snd_soc_component *component) |
| 298 | { |
| 299 | struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); |
| 300 | |
| 301 | snd_soc_component_exit_regmap(component); |
| 302 | snd_soc_free_ac97_component(ac97); |
| 303 | } |
| 304 | |
| 305 | static const struct snd_soc_component_driver soc_component_dev_stac9766 = { |
| 306 | .controls = stac9766_snd_ac97_controls, |
| 307 | .num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls), |
| 308 | .set_bias_level = stac9766_set_bias_level, |
| 309 | .probe = stac9766_component_probe, |
| 310 | .remove = stac9766_component_remove, |
| 311 | .resume = stac9766_component_resume, |
| 312 | .suspend_bias_off = 1, |
| 313 | .idle_bias_on = 1, |
| 314 | .use_pmdown_time = 1, |
| 315 | .endianness = 1, |
| 316 | }; |
| 317 | |
| 318 | static int stac9766_probe(struct platform_device *pdev) |
| 319 | { |
| 320 | return devm_snd_soc_register_component(&pdev->dev, |
| 321 | &soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai)); |
| 322 | } |
| 323 | |
| 324 | static struct platform_driver stac9766_codec_driver = { |
| 325 | .driver = { |
| 326 | .name = "stac9766-codec", |
| 327 | }, |
| 328 | |
| 329 | .probe = stac9766_probe, |
| 330 | }; |
| 331 | |
| 332 | module_platform_driver(stac9766_codec_driver); |
| 333 | |
| 334 | MODULE_DESCRIPTION("ASoC stac9766 driver"); |
| 335 | MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); |
| 336 | MODULE_LICENSE("GPL"); |