sound/soc/codecs/ad1980.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * ad1980.c  --  ALSA Soc AD1980 codec support
   4  *
   5  * Copyright:   Analog Device Inc.
   6  * Author:      Roy Huang <roy.huang@analog.com>
   7  *              Cliff Cai <cliff.cai@analog.com>
   8  */
   9
  10 /*
  11  * WARNING:
  12  *
  13  * Because Analog Devices Inc. discontinued the ad1980 sound chip since
  14  * Sep. 2009, this ad1980 driver is not maintained, tested and supported
  15  * by ADI now.
  16  */
  17
  18 #include <linux/init.h>
  19 #include <linux/slab.h>
  20 #include <linux/module.h>
  21 #include <linux/kernel.h>
  22 #include <linux/device.h>
  23 #include <linux/regmap.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/ac97_codec.h>
  27 #include <sound/initval.h>
  28 #include <sound/soc.h>
  29
  30 static const struct reg_default ad1980_reg_defaults[] = {
  31         { 0x02, 0x8000 },
  32         { 0x04, 0x8000 },
  33         { 0x06, 0x8000 },
  34         { 0x0c, 0x8008 },
  35         { 0x0e, 0x8008 },
  36         { 0x10, 0x8808 },
  37         { 0x12, 0x8808 },
  38         { 0x16, 0x8808 },
  39         { 0x18, 0x8808 },
  40         { 0x1a, 0x0000 },
  41         { 0x1c, 0x8000 },
  42         { 0x20, 0x0000 },
  43         { 0x28, 0x03c7 },
  44         { 0x2c, 0xbb80 },
  45         { 0x2e, 0xbb80 },
  46         { 0x30, 0xbb80 },
  47         { 0x32, 0xbb80 },
  48         { 0x36, 0x8080 },
  49         { 0x38, 0x8080 },
  50         { 0x3a, 0x2000 },
  51         { 0x60, 0x0000 },
  52         { 0x62, 0x0000 },
  53         { 0x72, 0x0000 },
  54         { 0x74, 0x1001 },
  55         { 0x76, 0x0000 },
  56 };
  57
  58 static bool ad1980_readable_reg(struct device *dev, unsigned int reg)
  59 {
  60         switch (reg) {
  61         case AC97_RESET ... AC97_MASTER_MONO:
  62         case AC97_PHONE ... AC97_CD:
  63         case AC97_AUX ... AC97_GENERAL_PURPOSE:
  64         case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:
  65         case AC97_SPDIF:
  66         case AC97_CODEC_CLASS_REV:
  67         case AC97_PCI_SVID:
  68         case AC97_AD_CODEC_CFG:
  69         case AC97_AD_JACK_SPDIF:
  70         case AC97_AD_SERIAL_CFG:
  71         case AC97_VENDOR_ID1:
  72         case AC97_VENDOR_ID2:
  73                 return true;
  74         default:
  75                 return false;
  76         }
  77 }
  78
  79 static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)
  80 {
  81         switch (reg) {
  82         case AC97_VENDOR_ID1:
  83         case AC97_VENDOR_ID2:
  84                 return false;
  85         default:
  86                 return ad1980_readable_reg(dev, reg);
  87         }
  88 }
  89
  90 static const struct regmap_config ad1980_regmap_config = {
  91         .reg_bits = 16,
  92         .reg_stride = 2,
  93         .val_bits = 16,
  94         .max_register = 0x7e,
  95         .cache_type = REGCACHE_RBTREE,
  96
  97         .volatile_reg = regmap_ac97_default_volatile,
  98         .readable_reg = ad1980_readable_reg,
  99         .writeable_reg = ad1980_writeable_reg,
 100
 101         .reg_defaults = ad1980_reg_defaults,
 102         .num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),
 103 };
 104
 105 static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
 106                 "Stereo Mix", "Mono Mix", "Phone"};
 107
 108 static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,
 109                             AC97_REC_SEL, 8, 0, ad1980_rec_sel);
 110
 111 static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
 112 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
 113 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
 114
 115 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
 116 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
 117
 118 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
 119 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
 120
 121 SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
 122 SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
 123
 124 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
 125 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
 126
 127 SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
 128 SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
 129
 130 SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
 131 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
 132
 133 SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
 134 SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
 135
 136 SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
 137 SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
 138
 139 SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
 140 SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
 141
 142 SOC_ENUM("Capture Source", ad1980_cap_src),
 143
 144 SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
 145 };
 146
 147 static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
 148 SND_SOC_DAPM_INPUT("MIC1"),
 149 SND_SOC_DAPM_INPUT("MIC2"),
 150 SND_SOC_DAPM_INPUT("CD_L"),
 151 SND_SOC_DAPM_INPUT("CD_R"),
 152 SND_SOC_DAPM_INPUT("AUX_L"),
 153 SND_SOC_DAPM_INPUT("AUX_R"),
 154 SND_SOC_DAPM_INPUT("LINE_IN_L"),
 155 SND_SOC_DAPM_INPUT("LINE_IN_R"),
 156
 157 SND_SOC_DAPM_OUTPUT("LFE_OUT"),
 158 SND_SOC_DAPM_OUTPUT("CENTER_OUT"),
 159 SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),
 160 SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),
 161 SND_SOC_DAPM_OUTPUT("MONO_OUT"),
 162 SND_SOC_DAPM_OUTPUT("HP_OUT_L"),
 163 SND_SOC_DAPM_OUTPUT("HP_OUT_R"),
 164 };
 165
 166 static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
 167         { "Capture", NULL, "MIC1" },
 168         { "Capture", NULL, "MIC2" },
 169         { "Capture", NULL, "CD_L" },
 170         { "Capture", NULL, "CD_R" },
 171         { "Capture", NULL, "AUX_L" },
 172         { "Capture", NULL, "AUX_R" },
 173         { "Capture", NULL, "LINE_IN_L" },
 174         { "Capture", NULL, "LINE_IN_R" },
 175
 176         { "LFE_OUT", NULL, "Playback" },
 177         { "CENTER_OUT", NULL, "Playback" },
 178         { "LINE_OUT_L", NULL, "Playback" },
 179         { "LINE_OUT_R", NULL, "Playback" },
 180         { "MONO_OUT", NULL, "Playback" },
 181         { "HP_OUT_L", NULL, "Playback" },
 182         { "HP_OUT_R", NULL, "Playback" },
 183 };
 184
 185 static struct snd_soc_dai_driver ad1980_dai = {
 186         .name = "ad1980-hifi",
 187         .playback = {
 188                 .stream_name = "Playback",
 189                 .channels_min = 2,
 190                 .channels_max = 6,
 191                 .rates = SNDRV_PCM_RATE_48000,
 192                 .formats = SND_SOC_STD_AC97_FMTS, },
 193         .capture = {
 194                 .stream_name = "Capture",
 195                 .channels_min = 2,
 196                 .channels_max = 2,
 197                 .rates = SNDRV_PCM_RATE_48000,
 198                 .formats = SND_SOC_STD_AC97_FMTS, },
 199 };
 200
 201 #define AD1980_VENDOR_ID 0x41445300
 202 #define AD1980_VENDOR_MASK 0xffffff00
 203
 204 static int ad1980_reset(struct snd_soc_component *component, int try_warm)
 205 {
 206         struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
 207         unsigned int retry_cnt = 0;
 208         int ret;
 209
 210         do {
 211                 ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,
 212                         AD1980_VENDOR_MASK);
 213                 if (ret >= 0)
 214                         return 0;
 215
 216                 /*
 217                  * Set bit 16slot in register 74h, then every slot will has only
 218                  * 16 bits. This command is sent out in 20bit mode, in which
 219                  * case the first nibble of data is eaten by the addr. (Tag is
 220                  * always 16 bit)
 221                  */
 222                 snd_soc_component_write(component, AC97_AD_SERIAL_CFG, 0x9900);
 223
 224         } while (retry_cnt++ < 10);
 225
 226         dev_err(component->dev, "Failed to reset: AC97 link error\n");
 227
 228         return -EIO;
 229 }
 230
 231 static int ad1980_soc_probe(struct snd_soc_component *component)
 232 {
 233         struct snd_ac97 *ac97;
 234         struct regmap *regmap;
 235         int ret;
 236         u16 vendor_id2;
 237         u16 ext_status;
 238
 239         ac97 = snd_soc_new_ac97_component(component, 0, 0);
 240         if (IS_ERR(ac97)) {
 241                 ret = PTR_ERR(ac97);
 242                 dev_err(component->dev, "Failed to register AC97 component: %d\n", ret);
 243                 return ret;
 244         }
 245
 246         regmap = regmap_init_ac97(ac97, &ad1980_regmap_config);
 247         if (IS_ERR(regmap)) {
 248                 ret = PTR_ERR(regmap);
 249                 goto err_free_ac97;
 250         }
 251
 252         snd_soc_component_init_regmap(component, regmap);
 253         snd_soc_component_set_drvdata(component, ac97);
 254
 255         ret = ad1980_reset(component, 0);
 256         if (ret < 0)
 257                 goto reset_err;
 258
 259         vendor_id2 = snd_soc_component_read32(component, AC97_VENDOR_ID2);
 260         if (vendor_id2 == 0x5374) {
 261                 dev_warn(component->dev,
 262                         "Found AD1981 - only 2/2 IN/OUT Channels supported\n");
 263         }
 264
 265         /* unmute captures and playbacks volume */
 266         snd_soc_component_write(component, AC97_MASTER, 0x0000);
 267         snd_soc_component_write(component, AC97_PCM, 0x0000);
 268         snd_soc_component_write(component, AC97_REC_GAIN, 0x0000);
 269         snd_soc_component_write(component, AC97_CENTER_LFE_MASTER, 0x0000);
 270         snd_soc_component_write(component, AC97_SURROUND_MASTER, 0x0000);
 271
 272         /*power on LFE/CENTER/Surround DACs*/
 273         ext_status = snd_soc_component_read32(component, AC97_EXTENDED_STATUS);
 274         snd_soc_component_write(component, AC97_EXTENDED_STATUS, ext_status&~0x3800);
 275
 276         return 0;
 277
 278 reset_err:
 279         snd_soc_component_exit_regmap(component);
 280 err_free_ac97:
 281         snd_soc_free_ac97_component(ac97);
 282         return ret;
 283 }
 284
 285 static void ad1980_soc_remove(struct snd_soc_component *component)
 286 {
 287         struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
 288
 289         snd_soc_component_exit_regmap(component);
 290         snd_soc_free_ac97_component(ac97);
 291 }
 292
 293 static const struct snd_soc_component_driver soc_component_dev_ad1980 = {
 294         .probe                  = ad1980_soc_probe,
 295         .remove                 = ad1980_soc_remove,
 296         .controls               = ad1980_snd_ac97_controls,
 297         .num_controls           = ARRAY_SIZE(ad1980_snd_ac97_controls),
 298         .dapm_widgets           = ad1980_dapm_widgets,
 299         .num_dapm_widgets       = ARRAY_SIZE(ad1980_dapm_widgets),
 300         .dapm_routes            = ad1980_dapm_routes,
 301         .num_dapm_routes        = ARRAY_SIZE(ad1980_dapm_routes),
 302         .idle_bias_on           = 1,
 303         .use_pmdown_time        = 1,
 304         .endianness             = 1,
 305         .non_legacy_dai_naming  = 1,
 306 };
 307
 308 static int ad1980_probe(struct platform_device *pdev)
 309 {
 310         return devm_snd_soc_register_component(&pdev->dev,
 311                         &soc_component_dev_ad1980, &ad1980_dai, 1);
 312 }
 313
 314 static struct platform_driver ad1980_codec_driver = {
 315         .driver = {
 316                         .name = "ad1980",
 317         },
 318
 319         .probe = ad1980_probe,
 320 };
 321
 322 module_platform_driver(ad1980_codec_driver);
 323
 324 MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
 325 MODULE_AUTHOR("Roy Huang, Cliff Cai");
 326 MODULE_LICENSE("GPL");