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_RBTREE, 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"); 337