1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Renesas R-Car Gen1 SRU/SSI support 4 // 5 // Copyright (C) 2013 Renesas Solutions Corp. 6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 7 8 /* 9 * #define DEBUG 10 * 11 * you can also add below in 12 * ${LINUX}/drivers/base/regmap/regmap.c 13 * for regmap debug 14 * 15 * #define LOG_DEVICE "xxxx.rcar_sound" 16 */ 17 18 #include "rsnd.h" 19 20 struct rsnd_gen { 21 struct rsnd_gen_ops *ops; 22 23 /* RSND_BASE_MAX base */ 24 void __iomem *base[RSND_BASE_MAX]; 25 phys_addr_t res[RSND_BASE_MAX]; 26 struct regmap *regmap[RSND_BASE_MAX]; 27 28 /* RSND_REG_MAX base */ 29 struct regmap_field *regs[RSND_REG_MAX]; 30 const char *reg_name[RSND_REG_MAX]; 31 }; 32 33 #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen) 34 #define rsnd_reg_name(gen, id) ((gen)->reg_name[id]) 35 36 struct rsnd_regmap_field_conf { 37 int idx; 38 unsigned int reg_offset; 39 unsigned int id_offset; 40 const char *reg_name; 41 }; 42 43 #define RSND_REG_SET(id, offset, _id_offset, n) \ 44 { \ 45 .idx = id, \ 46 .reg_offset = offset, \ 47 .id_offset = _id_offset, \ 48 .reg_name = n, \ 49 } 50 /* single address mapping */ 51 #define RSND_GEN_S_REG(id, offset) \ 52 RSND_REG_SET(RSND_REG_##id, offset, 0, #id) 53 54 /* multi address mapping */ 55 #define RSND_GEN_M_REG(id, offset, _id_offset) \ 56 RSND_REG_SET(RSND_REG_##id, offset, _id_offset, #id) 57 58 /* 59 * basic function 60 */ 61 static int rsnd_is_accessible_reg(struct rsnd_priv *priv, 62 struct rsnd_gen *gen, enum rsnd_reg reg) 63 { 64 if (!gen->regs[reg]) { 65 struct device *dev = rsnd_priv_to_dev(priv); 66 67 dev_err(dev, "unsupported register access %x\n", reg); 68 return 0; 69 } 70 71 return 1; 72 } 73 74 u32 rsnd_read(struct rsnd_priv *priv, 75 struct rsnd_mod *mod, enum rsnd_reg reg) 76 { 77 struct device *dev = rsnd_priv_to_dev(priv); 78 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 79 u32 val; 80 81 if (!rsnd_is_accessible_reg(priv, gen, reg)) 82 return 0; 83 84 regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val); 85 86 dev_dbg(dev, "r %s[%d] - %-18s (%4d) : %08x\n", 87 rsnd_mod_name(mod), rsnd_mod_id(mod), 88 rsnd_reg_name(gen, reg), reg, val); 89 90 return val; 91 } 92 93 void rsnd_write(struct rsnd_priv *priv, 94 struct rsnd_mod *mod, 95 enum rsnd_reg reg, u32 data) 96 { 97 struct device *dev = rsnd_priv_to_dev(priv); 98 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 99 100 if (!rsnd_is_accessible_reg(priv, gen, reg)) 101 return; 102 103 regmap_fields_force_write(gen->regs[reg], rsnd_mod_id(mod), data); 104 105 dev_dbg(dev, "w %s[%d] - %-18s (%4d) : %08x\n", 106 rsnd_mod_name(mod), rsnd_mod_id(mod), 107 rsnd_reg_name(gen, reg), reg, data); 108 } 109 110 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, 111 enum rsnd_reg reg, u32 mask, u32 data) 112 { 113 struct device *dev = rsnd_priv_to_dev(priv); 114 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 115 116 if (!rsnd_is_accessible_reg(priv, gen, reg)) 117 return; 118 119 regmap_fields_force_update_bits(gen->regs[reg], 120 rsnd_mod_id(mod), mask, data); 121 122 dev_dbg(dev, "b %s[%d] - %-18s (%4d) : %08x/%08x\n", 123 rsnd_mod_name(mod), rsnd_mod_id(mod), 124 rsnd_reg_name(gen, reg), reg, data, mask); 125 126 } 127 128 phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id) 129 { 130 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 131 132 return gen->res[reg_id]; 133 } 134 135 #define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \ 136 _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf)) 137 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv, 138 int id_size, 139 int reg_id, 140 const char *name, 141 const struct rsnd_regmap_field_conf *conf, 142 int conf_size) 143 { 144 struct platform_device *pdev = rsnd_priv_to_pdev(priv); 145 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 146 struct device *dev = rsnd_priv_to_dev(priv); 147 struct resource *res; 148 struct regmap_config regc; 149 struct regmap_field *regs; 150 struct regmap *regmap; 151 struct reg_field regf; 152 void __iomem *base; 153 int i; 154 155 memset(®c, 0, sizeof(regc)); 156 regc.reg_bits = 32; 157 regc.val_bits = 32; 158 regc.reg_stride = 4; 159 regc.name = name; 160 161 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); 162 if (!res) 163 res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id); 164 if (!res) 165 return -ENODEV; 166 167 base = devm_ioremap_resource(dev, res); 168 if (IS_ERR(base)) 169 return PTR_ERR(base); 170 171 regmap = devm_regmap_init_mmio(dev, base, ®c); 172 if (IS_ERR(regmap)) 173 return PTR_ERR(regmap); 174 175 /* RSND_BASE_MAX base */ 176 gen->base[reg_id] = base; 177 gen->regmap[reg_id] = regmap; 178 gen->res[reg_id] = res->start; 179 180 for (i = 0; i < conf_size; i++) { 181 182 regf.reg = conf[i].reg_offset; 183 regf.id_offset = conf[i].id_offset; 184 regf.lsb = 0; 185 regf.msb = 31; 186 regf.id_size = id_size; 187 188 regs = devm_regmap_field_alloc(dev, regmap, regf); 189 if (IS_ERR(regs)) 190 return PTR_ERR(regs); 191 192 /* RSND_REG_MAX base */ 193 gen->regs[conf[i].idx] = regs; 194 gen->reg_name[conf[i].idx] = conf[i].reg_name; 195 } 196 197 return 0; 198 } 199 200 /* 201 * Gen2 202 */ 203 static int rsnd_gen2_probe(struct rsnd_priv *priv) 204 { 205 static const struct rsnd_regmap_field_conf conf_ssiu[] = { 206 RSND_GEN_S_REG(SSI_MODE0, 0x800), 207 RSND_GEN_S_REG(SSI_MODE1, 0x804), 208 RSND_GEN_S_REG(SSI_MODE2, 0x808), 209 RSND_GEN_S_REG(SSI_CONTROL, 0x810), 210 RSND_GEN_S_REG(SSI_SYS_STATUS0, 0x840), 211 RSND_GEN_S_REG(SSI_SYS_STATUS1, 0x844), 212 RSND_GEN_S_REG(SSI_SYS_STATUS2, 0x848), 213 RSND_GEN_S_REG(SSI_SYS_STATUS3, 0x84c), 214 RSND_GEN_S_REG(SSI_SYS_STATUS4, 0x880), 215 RSND_GEN_S_REG(SSI_SYS_STATUS5, 0x884), 216 RSND_GEN_S_REG(SSI_SYS_STATUS6, 0x888), 217 RSND_GEN_S_REG(SSI_SYS_STATUS7, 0x88c), 218 RSND_GEN_S_REG(HDMI0_SEL, 0x9e0), 219 RSND_GEN_S_REG(HDMI1_SEL, 0x9e4), 220 221 /* FIXME: it needs SSI_MODE2/3 in the future */ 222 RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80), 223 RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80), 224 RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8, 0x80), 225 RSND_GEN_M_REG(SSI_MODE, 0xc, 0x80), 226 RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), 227 RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80), 228 }; 229 230 static const struct rsnd_regmap_field_conf conf_scu[] = { 231 RSND_GEN_M_REG(SRC_I_BUSIF_MODE,0x0, 0x20), 232 RSND_GEN_M_REG(SRC_O_BUSIF_MODE,0x4, 0x20), 233 RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8, 0x20), 234 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20), 235 RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20), 236 RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20), 237 RSND_GEN_M_REG(CMD_BUSIF_MODE, 0x184, 0x20), 238 RSND_GEN_M_REG(CMD_BUSIF_DALIGN,0x188, 0x20), 239 RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20), 240 RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20), 241 RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8), 242 RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc), 243 RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0), 244 RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1d4), 245 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 246 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 247 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 248 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 249 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 250 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 251 RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40), 252 RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40), 253 RSND_GEN_M_REG(CTU_SWRSR, 0x500, 0x100), 254 RSND_GEN_M_REG(CTU_CTUIR, 0x504, 0x100), 255 RSND_GEN_M_REG(CTU_ADINR, 0x508, 0x100), 256 RSND_GEN_M_REG(CTU_CPMDR, 0x510, 0x100), 257 RSND_GEN_M_REG(CTU_SCMDR, 0x514, 0x100), 258 RSND_GEN_M_REG(CTU_SV00R, 0x518, 0x100), 259 RSND_GEN_M_REG(CTU_SV01R, 0x51c, 0x100), 260 RSND_GEN_M_REG(CTU_SV02R, 0x520, 0x100), 261 RSND_GEN_M_REG(CTU_SV03R, 0x524, 0x100), 262 RSND_GEN_M_REG(CTU_SV04R, 0x528, 0x100), 263 RSND_GEN_M_REG(CTU_SV05R, 0x52c, 0x100), 264 RSND_GEN_M_REG(CTU_SV06R, 0x530, 0x100), 265 RSND_GEN_M_REG(CTU_SV07R, 0x534, 0x100), 266 RSND_GEN_M_REG(CTU_SV10R, 0x538, 0x100), 267 RSND_GEN_M_REG(CTU_SV11R, 0x53c, 0x100), 268 RSND_GEN_M_REG(CTU_SV12R, 0x540, 0x100), 269 RSND_GEN_M_REG(CTU_SV13R, 0x544, 0x100), 270 RSND_GEN_M_REG(CTU_SV14R, 0x548, 0x100), 271 RSND_GEN_M_REG(CTU_SV15R, 0x54c, 0x100), 272 RSND_GEN_M_REG(CTU_SV16R, 0x550, 0x100), 273 RSND_GEN_M_REG(CTU_SV17R, 0x554, 0x100), 274 RSND_GEN_M_REG(CTU_SV20R, 0x558, 0x100), 275 RSND_GEN_M_REG(CTU_SV21R, 0x55c, 0x100), 276 RSND_GEN_M_REG(CTU_SV22R, 0x560, 0x100), 277 RSND_GEN_M_REG(CTU_SV23R, 0x564, 0x100), 278 RSND_GEN_M_REG(CTU_SV24R, 0x568, 0x100), 279 RSND_GEN_M_REG(CTU_SV25R, 0x56c, 0x100), 280 RSND_GEN_M_REG(CTU_SV26R, 0x570, 0x100), 281 RSND_GEN_M_REG(CTU_SV27R, 0x574, 0x100), 282 RSND_GEN_M_REG(CTU_SV30R, 0x578, 0x100), 283 RSND_GEN_M_REG(CTU_SV31R, 0x57c, 0x100), 284 RSND_GEN_M_REG(CTU_SV32R, 0x580, 0x100), 285 RSND_GEN_M_REG(CTU_SV33R, 0x584, 0x100), 286 RSND_GEN_M_REG(CTU_SV34R, 0x588, 0x100), 287 RSND_GEN_M_REG(CTU_SV35R, 0x58c, 0x100), 288 RSND_GEN_M_REG(CTU_SV36R, 0x590, 0x100), 289 RSND_GEN_M_REG(CTU_SV37R, 0x594, 0x100), 290 RSND_GEN_M_REG(MIX_SWRSR, 0xd00, 0x40), 291 RSND_GEN_M_REG(MIX_MIXIR, 0xd04, 0x40), 292 RSND_GEN_M_REG(MIX_ADINR, 0xd08, 0x40), 293 RSND_GEN_M_REG(MIX_MIXMR, 0xd10, 0x40), 294 RSND_GEN_M_REG(MIX_MVPDR, 0xd14, 0x40), 295 RSND_GEN_M_REG(MIX_MDBAR, 0xd18, 0x40), 296 RSND_GEN_M_REG(MIX_MDBBR, 0xd1c, 0x40), 297 RSND_GEN_M_REG(MIX_MDBCR, 0xd20, 0x40), 298 RSND_GEN_M_REG(MIX_MDBDR, 0xd24, 0x40), 299 RSND_GEN_M_REG(MIX_MDBER, 0xd28, 0x40), 300 RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100), 301 RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100), 302 RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100), 303 RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100), 304 RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100), 305 RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100), 306 RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100), 307 RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100), 308 RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100), 309 RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100), 310 RSND_GEN_M_REG(DVC_VOL2R, 0xe30, 0x100), 311 RSND_GEN_M_REG(DVC_VOL3R, 0xe34, 0x100), 312 RSND_GEN_M_REG(DVC_VOL4R, 0xe38, 0x100), 313 RSND_GEN_M_REG(DVC_VOL5R, 0xe3c, 0x100), 314 RSND_GEN_M_REG(DVC_VOL6R, 0xe40, 0x100), 315 RSND_GEN_M_REG(DVC_VOL7R, 0xe44, 0x100), 316 RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100), 317 }; 318 static const struct rsnd_regmap_field_conf conf_adg[] = { 319 RSND_GEN_S_REG(BRRA, 0x00), 320 RSND_GEN_S_REG(BRRB, 0x04), 321 RSND_GEN_S_REG(BRGCKR, 0x08), 322 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 323 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 324 RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14), 325 RSND_GEN_S_REG(DIV_EN, 0x30), 326 RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34), 327 RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38), 328 RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c), 329 RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40), 330 RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44), 331 RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48), 332 RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c), 333 RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50), 334 RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54), 335 RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58), 336 RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c), 337 }; 338 static const struct rsnd_regmap_field_conf conf_ssi[] = { 339 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 340 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 341 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 342 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 343 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 344 }; 345 int ret_ssiu; 346 int ret_scu; 347 int ret_adg; 348 int ret_ssi; 349 350 ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu); 351 ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu); 352 ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg); 353 ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi); 354 if (ret_ssiu < 0 || 355 ret_scu < 0 || 356 ret_adg < 0 || 357 ret_ssi < 0) 358 return ret_ssiu | ret_scu | ret_adg | ret_ssi; 359 360 return 0; 361 } 362 363 /* 364 * Gen1 365 */ 366 367 static int rsnd_gen1_probe(struct rsnd_priv *priv) 368 { 369 static const struct rsnd_regmap_field_conf conf_adg[] = { 370 RSND_GEN_S_REG(BRRA, 0x00), 371 RSND_GEN_S_REG(BRRB, 0x04), 372 RSND_GEN_S_REG(BRGCKR, 0x08), 373 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 374 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 375 }; 376 static const struct rsnd_regmap_field_conf conf_ssi[] = { 377 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 378 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 379 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 380 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 381 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 382 }; 383 int ret_adg; 384 int ret_ssi; 385 386 ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg); 387 ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi); 388 if (ret_adg < 0 || 389 ret_ssi < 0) 390 return ret_adg | ret_ssi; 391 392 return 0; 393 } 394 395 /* 396 * Gen 397 */ 398 int rsnd_gen_probe(struct rsnd_priv *priv) 399 { 400 struct device *dev = rsnd_priv_to_dev(priv); 401 struct rsnd_gen *gen; 402 int ret; 403 404 gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL); 405 if (!gen) 406 return -ENOMEM; 407 408 priv->gen = gen; 409 410 ret = -ENODEV; 411 if (rsnd_is_gen1(priv)) 412 ret = rsnd_gen1_probe(priv); 413 else if (rsnd_is_gen2(priv) || 414 rsnd_is_gen3(priv)) 415 ret = rsnd_gen2_probe(priv); 416 417 if (ret < 0) 418 dev_err(dev, "unknown generation R-Car sound device\n"); 419 420 return ret; 421 } 422