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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 | // SPDX-License-Identifier: GPL-2.0-or-later /* * Wolfson WM97xx -- Core device * * Copyright (C) 2017 Robert Jarzmik * * Features: * - an AC97 audio codec * - a touchscreen driver * - a GPIO block */ #include <linux/device.h> #include <linux/mfd/core.h> #include <linux/mfd/wm97xx.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/wm97xx.h> #include <sound/ac97/codec.h> #include <sound/ac97/compat.h> #define WM9705_VENDOR_ID 0x574d4c05 #define WM9712_VENDOR_ID 0x574d4c12 #define WM9713_VENDOR_ID 0x574d4c13 #define WM97xx_VENDOR_ID_MASK 0xffffffff struct wm97xx_priv { struct regmap *regmap; struct snd_ac97 *ac97; struct device *dev; struct wm97xx_platform_data codec_pdata; }; static bool wm97xx_readable_reg(struct device *dev, unsigned int reg) { switch (reg) { case AC97_RESET ... AC97_PCM_SURR_DAC_RATE: case AC97_PCM_LR_ADC_RATE: case AC97_CENTER_LFE_MASTER: case AC97_SPDIF ... AC97_LINE1_LEVEL: case AC97_GPIO_CFG ... 0x5c: case AC97_CODEC_CLASS_REV ... AC97_PCI_SID: case 0x74 ... AC97_VENDOR_ID2: return true; default: return false; } } static bool wm97xx_writeable_reg(struct device *dev, unsigned int reg) { switch (reg) { case AC97_VENDOR_ID1: case AC97_VENDOR_ID2: return false; default: return wm97xx_readable_reg(dev, reg); } } static const struct reg_default wm9705_reg_defaults[] = { { 0x02, 0x8000 }, { 0x04, 0x8000 }, { 0x06, 0x8000 }, { 0x0a, 0x8000 }, { 0x0c, 0x8008 }, { 0x0e, 0x8008 }, { 0x10, 0x8808 }, { 0x12, 0x8808 }, { 0x14, 0x8808 }, { 0x16, 0x8808 }, { 0x18, 0x8808 }, { 0x1a, 0x0000 }, { 0x1c, 0x8000 }, { 0x20, 0x0000 }, { 0x22, 0x0000 }, { 0x26, 0x000f }, { 0x28, 0x0605 }, { 0x2a, 0x0000 }, { 0x2c, 0xbb80 }, { 0x32, 0xbb80 }, { 0x34, 0x2000 }, { 0x5a, 0x0000 }, { 0x5c, 0x0000 }, { 0x72, 0x0808 }, { 0x74, 0x0000 }, { 0x76, 0x0006 }, { 0x78, 0x0000 }, { 0x7a, 0x0000 }, }; static const struct regmap_config wm9705_regmap_config = { .reg_bits = 16, .reg_stride = 2, .val_bits = 16, .max_register = 0x7e, .cache_type = REGCACHE_RBTREE, .reg_defaults = wm9705_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults), .volatile_reg = regmap_ac97_default_volatile, .readable_reg = wm97xx_readable_reg, .writeable_reg = wm97xx_writeable_reg, }; static struct mfd_cell wm9705_cells[] = { { .name = "wm9705-codec", }, { .name = "wm97xx-ts", }, }; static bool wm9712_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case AC97_REC_GAIN: return true; default: return regmap_ac97_default_volatile(dev, reg); } } static const struct reg_default wm9712_reg_defaults[] = { { 0x02, 0x8000 }, { 0x04, 0x8000 }, { 0x06, 0x8000 }, { 0x08, 0x0f0f }, { 0x0a, 0xaaa0 }, { 0x0c, 0xc008 }, { 0x0e, 0x6808 }, { 0x10, 0xe808 }, { 0x12, 0xaaa0 }, { 0x14, 0xad00 }, { 0x16, 0x8000 }, { 0x18, 0xe808 }, { 0x1a, 0x3000 }, { 0x1c, 0x8000 }, { 0x20, 0x0000 }, { 0x22, 0x0000 }, { 0x26, 0x000f }, { 0x28, 0x0605 }, { 0x2a, 0x0410 }, { 0x2c, 0xbb80 }, { 0x2e, 0xbb80 }, { 0x32, 0xbb80 }, { 0x34, 0x2000 }, { 0x4c, 0xf83e }, { 0x4e, 0xffff }, { 0x50, 0x0000 }, { 0x52, 0x0000 }, { 0x56, 0xf83e }, { 0x58, 0x0008 }, { 0x5c, 0x0000 }, { 0x60, 0xb032 }, { 0x62, 0x3e00 }, { 0x64, 0x0000 }, { 0x76, 0x0006 }, { 0x78, 0x0001 }, { 0x7a, 0x0000 }, }; static const struct regmap_config wm9712_regmap_config = { .reg_bits = 16, .reg_stride = 2, .val_bits = 16, .max_register = 0x7e, .cache_type = REGCACHE_RBTREE, .reg_defaults = wm9712_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm9712_reg_defaults), .volatile_reg = wm9712_volatile_reg, .readable_reg = wm97xx_readable_reg, .writeable_reg = wm97xx_writeable_reg, }; static struct mfd_cell wm9712_cells[] = { { .name = "wm9712-codec", }, { .name = "wm97xx-ts", }, }; static const struct reg_default wm9713_reg_defaults[] = { { 0x02, 0x8080 }, /* Speaker Output Volume */ { 0x04, 0x8080 }, /* Headphone Output Volume */ { 0x06, 0x8080 }, /* Out3/OUT4 Volume */ { 0x08, 0xc880 }, /* Mono Volume */ { 0x0a, 0xe808 }, /* LINEIN Volume */ { 0x0c, 0xe808 }, /* DAC PGA Volume */ { 0x0e, 0x0808 }, /* MIC PGA Volume */ { 0x10, 0x00da }, /* MIC Routing Control */ { 0x12, 0x8000 }, /* Record PGA Volume */ { 0x14, 0xd600 }, /* Record Routing */ { 0x16, 0xaaa0 }, /* PCBEEP Volume */ { 0x18, 0xaaa0 }, /* VxDAC Volume */ { 0x1a, 0xaaa0 }, /* AUXDAC Volume */ { 0x1c, 0x0000 }, /* Output PGA Mux */ { 0x1e, 0x0000 }, /* DAC 3D control */ { 0x20, 0x0f0f }, /* DAC Tone Control*/ { 0x22, 0x0040 }, /* MIC Input Select & Bias */ { 0x24, 0x0000 }, /* Output Volume Mapping & Jack */ { 0x26, 0x7f00 }, /* Powerdown Ctrl/Stat*/ { 0x28, 0x0405 }, /* Extended Audio ID */ { 0x2a, 0x0410 }, /* Extended Audio Start/Ctrl */ { 0x2c, 0xbb80 }, /* Audio DACs Sample Rate */ { 0x2e, 0xbb80 }, /* AUXDAC Sample Rate */ { 0x32, 0xbb80 }, /* Audio ADCs Sample Rate */ { 0x36, 0x4523 }, /* PCM codec control */ { 0x3a, 0x2000 }, /* SPDIF control */ { 0x3c, 0xfdff }, /* Powerdown 1 */ { 0x3e, 0xffff }, /* Powerdown 2 */ { 0x40, 0x0000 }, /* General Purpose */ { 0x42, 0x0000 }, /* Fast Power-Up Control */ { 0x44, 0x0080 }, /* MCLK/PLL Control */ { 0x46, 0x0000 }, /* MCLK/PLL Control */ { 0x4c, 0xfffe }, /* GPIO Pin Configuration */ { 0x4e, 0xffff }, /* GPIO Pin Polarity / Type */ { 0x50, 0x0000 }, /* GPIO Pin Sticky */ { 0x52, 0x0000 }, /* GPIO Pin Wake-Up */ /* GPIO Pin Status */ { 0x56, 0xfffe }, /* GPIO Pin Sharing */ { 0x58, 0x4000 }, /* GPIO PullUp/PullDown */ { 0x5a, 0x0000 }, /* Additional Functions 1 */ { 0x5c, 0x0000 }, /* Additional Functions 2 */ { 0x60, 0xb032 }, /* ALC Control */ { 0x62, 0x3e00 }, /* ALC / Noise Gate Control */ { 0x64, 0x0000 }, /* AUXDAC input control */ { 0x74, 0x0000 }, /* Digitiser Reg 1 */ { 0x76, 0x0006 }, /* Digitiser Reg 2 */ { 0x78, 0x0001 }, /* Digitiser Reg 3 */ { 0x7a, 0x0000 }, /* Digitiser Read Back */ }; static const struct regmap_config wm9713_regmap_config = { .reg_bits = 16, .reg_stride = 2, .val_bits = 16, .max_register = 0x7e, .cache_type = REGCACHE_RBTREE, .reg_defaults = wm9713_reg_defaults, .num_reg_defaults = ARRAY_SIZE(wm9713_reg_defaults), .volatile_reg = regmap_ac97_default_volatile, .readable_reg = wm97xx_readable_reg, .writeable_reg = wm97xx_writeable_reg, }; static struct mfd_cell wm9713_cells[] = { { .name = "wm9713-codec", }, { .name = "wm97xx-ts", }, }; static int wm97xx_ac97_probe(struct ac97_codec_device *adev) { struct wm97xx_priv *wm97xx; const struct regmap_config *config; struct wm97xx_platform_data *codec_pdata; struct mfd_cell *cells; int ret = -ENODEV, nb_cells, i; struct wm97xx_pdata *pdata = snd_ac97_codec_get_platdata(adev); wm97xx = devm_kzalloc(ac97_codec_dev2dev(adev), sizeof(*wm97xx), GFP_KERNEL); if (!wm97xx) return -ENOMEM; wm97xx->dev = ac97_codec_dev2dev(adev); wm97xx->ac97 = snd_ac97_compat_alloc(adev); if (IS_ERR(wm97xx->ac97)) return PTR_ERR(wm97xx->ac97); ac97_set_drvdata(adev, wm97xx); dev_info(wm97xx->dev, "wm97xx core found, id=0x%x\n", adev->vendor_id); codec_pdata = &wm97xx->codec_pdata; codec_pdata->ac97 = wm97xx->ac97; codec_pdata->batt_pdata = pdata ? pdata->batt_pdata : NULL; switch (adev->vendor_id) { case WM9705_VENDOR_ID: config = &wm9705_regmap_config; cells = wm9705_cells; nb_cells = ARRAY_SIZE(wm9705_cells); break; case WM9712_VENDOR_ID: config = &wm9712_regmap_config; cells = wm9712_cells; nb_cells = ARRAY_SIZE(wm9712_cells); break; case WM9713_VENDOR_ID: config = &wm9713_regmap_config; cells = wm9713_cells; nb_cells = ARRAY_SIZE(wm9713_cells); break; default: goto err_free_compat; } for (i = 0; i < nb_cells; i++) { cells[i].platform_data = codec_pdata; cells[i].pdata_size = sizeof(*codec_pdata); } codec_pdata->regmap = devm_regmap_init_ac97(wm97xx->ac97, config); if (IS_ERR(codec_pdata->regmap)) { ret = PTR_ERR(codec_pdata->regmap); goto err_free_compat; } ret = devm_mfd_add_devices(wm97xx->dev, PLATFORM_DEVID_NONE, cells, nb_cells, NULL, 0, NULL); if (ret) goto err_free_compat; return ret; err_free_compat: snd_ac97_compat_release(wm97xx->ac97); return ret; } static int wm97xx_ac97_remove(struct ac97_codec_device *adev) { struct wm97xx_priv *wm97xx = ac97_get_drvdata(adev); snd_ac97_compat_release(wm97xx->ac97); return 0; } static const struct ac97_id wm97xx_ac97_ids[] = { { .id = WM9705_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK }, { .id = WM9712_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK }, { .id = WM9713_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK }, { } }; static struct ac97_codec_driver wm97xx_ac97_driver = { .driver = { .name = "wm97xx-core", }, .probe = wm97xx_ac97_probe, .remove = wm97xx_ac97_remove, .id_table = wm97xx_ac97_ids, }; static int __init wm97xx_module_init(void) { return snd_ac97_codec_driver_register(&wm97xx_ac97_driver); } module_init(wm97xx_module_init); static void __exit wm97xx_module_exit(void) { snd_ac97_codec_driver_unregister(&wm97xx_ac97_driver); } module_exit(wm97xx_module_exit); MODULE_DESCRIPTION("WM9712, WM9713 core driver"); MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>"); MODULE_LICENSE("GPL"); |