1 /* 2 * Renesas R-Car Gen1 SRU/SSI support 3 * 4 * Copyright (C) 2013 Renesas Solutions Corp. 5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 /* 13 * #define DEBUG 14 * 15 * you can also add below in 16 * ${LINUX}/drivers/base/regmap/regmap.c 17 * for regmap debug 18 * 19 * #define LOG_DEVICE "xxxx.rcar_sound" 20 */ 21 22 #include "rsnd.h" 23 24 struct rsnd_gen { 25 void __iomem *base[RSND_BASE_MAX]; 26 27 struct rsnd_gen_ops *ops; 28 29 struct regmap *regmap[RSND_BASE_MAX]; 30 struct regmap_field *regs[RSND_REG_MAX]; 31 phys_addr_t res[RSND_REG_MAX]; 32 }; 33 34 #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen) 35 36 struct rsnd_regmap_field_conf { 37 int idx; 38 unsigned int reg_offset; 39 unsigned int id_offset; 40 }; 41 42 #define RSND_REG_SET(id, offset, _id_offset) \ 43 { \ 44 .idx = id, \ 45 .reg_offset = offset, \ 46 .id_offset = _id_offset, \ 47 } 48 /* single address mapping */ 49 #define RSND_GEN_S_REG(id, offset) \ 50 RSND_REG_SET(RSND_REG_##id, offset, 0) 51 52 /* multi address mapping */ 53 #define RSND_GEN_M_REG(id, offset, _id_offset) \ 54 RSND_REG_SET(RSND_REG_##id, offset, _id_offset) 55 56 /* 57 * basic function 58 */ 59 static int rsnd_is_accessible_reg(struct rsnd_priv *priv, 60 struct rsnd_gen *gen, enum rsnd_reg reg) 61 { 62 if (!gen->regs[reg]) { 63 struct device *dev = rsnd_priv_to_dev(priv); 64 65 dev_err(dev, "unsupported register access %x\n", reg); 66 return 0; 67 } 68 69 return 1; 70 } 71 72 u32 rsnd_read(struct rsnd_priv *priv, 73 struct rsnd_mod *mod, enum rsnd_reg reg) 74 { 75 struct device *dev = rsnd_priv_to_dev(priv); 76 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 77 u32 val; 78 79 if (!rsnd_is_accessible_reg(priv, gen, reg)) 80 return 0; 81 82 dev_dbg(dev, "r %s[%d] - %4d : %08x\n", 83 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val); 84 85 regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val); 86 87 return val; 88 } 89 90 void rsnd_write(struct rsnd_priv *priv, 91 struct rsnd_mod *mod, 92 enum rsnd_reg reg, u32 data) 93 { 94 struct device *dev = rsnd_priv_to_dev(priv); 95 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 96 97 if (!rsnd_is_accessible_reg(priv, gen, reg)) 98 return; 99 100 dev_dbg(dev, "w %s[%d] - %4d : %08x\n", 101 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data); 102 103 regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data); 104 } 105 106 void rsnd_force_write(struct rsnd_priv *priv, 107 struct rsnd_mod *mod, 108 enum rsnd_reg reg, u32 data) 109 { 110 struct device *dev = rsnd_priv_to_dev(priv); 111 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 112 113 if (!rsnd_is_accessible_reg(priv, gen, reg)) 114 return; 115 116 dev_dbg(dev, "w %s[%d] - %4d : %08x\n", 117 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data); 118 119 regmap_fields_force_write(gen->regs[reg], rsnd_mod_id(mod), data); 120 } 121 122 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, 123 enum rsnd_reg reg, u32 mask, u32 data) 124 { 125 struct device *dev = rsnd_priv_to_dev(priv); 126 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 127 128 if (!rsnd_is_accessible_reg(priv, gen, reg)) 129 return; 130 131 dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n", 132 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask); 133 134 regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod), 135 mask, data); 136 } 137 138 phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id) 139 { 140 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 141 142 return gen->res[reg_id]; 143 } 144 145 #define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \ 146 _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf)) 147 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv, 148 int id_size, 149 int reg_id, 150 const char *name, 151 struct rsnd_regmap_field_conf *conf, 152 int conf_size) 153 { 154 struct platform_device *pdev = rsnd_priv_to_pdev(priv); 155 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 156 struct device *dev = rsnd_priv_to_dev(priv); 157 struct resource *res; 158 struct regmap_config regc; 159 struct regmap_field *regs; 160 struct regmap *regmap; 161 struct reg_field regf; 162 void __iomem *base; 163 int i; 164 165 memset(®c, 0, sizeof(regc)); 166 regc.reg_bits = 32; 167 regc.val_bits = 32; 168 regc.reg_stride = 4; 169 regc.name = name; 170 171 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); 172 if (!res) 173 res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id); 174 if (!res) 175 return -ENODEV; 176 177 base = devm_ioremap_resource(dev, res); 178 if (IS_ERR(base)) 179 return PTR_ERR(base); 180 181 regmap = devm_regmap_init_mmio(dev, base, ®c); 182 if (IS_ERR(regmap)) 183 return PTR_ERR(regmap); 184 185 gen->base[reg_id] = base; 186 gen->regmap[reg_id] = regmap; 187 gen->res[reg_id] = res->start; 188 189 for (i = 0; i < conf_size; i++) { 190 191 regf.reg = conf[i].reg_offset; 192 regf.id_offset = conf[i].id_offset; 193 regf.lsb = 0; 194 regf.msb = 31; 195 regf.id_size = id_size; 196 197 regs = devm_regmap_field_alloc(dev, regmap, regf); 198 if (IS_ERR(regs)) 199 return PTR_ERR(regs); 200 201 gen->regs[conf[i].idx] = regs; 202 } 203 204 return 0; 205 } 206 207 /* 208 * Gen2 209 */ 210 static int rsnd_gen2_probe(struct platform_device *pdev, 211 struct rsnd_priv *priv) 212 { 213 struct rsnd_regmap_field_conf conf_ssiu[] = { 214 RSND_GEN_S_REG(SSI_MODE0, 0x800), 215 RSND_GEN_S_REG(SSI_MODE1, 0x804), 216 /* FIXME: it needs SSI_MODE2/3 in the future */ 217 RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80), 218 RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80), 219 RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8, 0x80), 220 RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), 221 RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80), 222 }; 223 struct rsnd_regmap_field_conf conf_scu[] = { 224 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 0x20), 225 RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8, 0x20), 226 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20), 227 RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20), 228 RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20), 229 RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20), 230 RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20), 231 RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8), 232 RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc), 233 RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0), 234 RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1c4), 235 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 236 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 237 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 238 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 239 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 240 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 241 RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40), 242 RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40), 243 RSND_GEN_M_REG(CTU_CTUIR, 0x504, 0x100), 244 RSND_GEN_M_REG(CTU_ADINR, 0x508, 0x100), 245 RSND_GEN_M_REG(MIX_SWRSR, 0xd00, 0x40), 246 RSND_GEN_M_REG(MIX_MIXIR, 0xd04, 0x40), 247 RSND_GEN_M_REG(MIX_ADINR, 0xd08, 0x40), 248 RSND_GEN_M_REG(MIX_MIXMR, 0xd10, 0x40), 249 RSND_GEN_M_REG(MIX_MVPDR, 0xd14, 0x40), 250 RSND_GEN_M_REG(MIX_MDBAR, 0xd18, 0x40), 251 RSND_GEN_M_REG(MIX_MDBBR, 0xd1c, 0x40), 252 RSND_GEN_M_REG(MIX_MDBCR, 0xd20, 0x40), 253 RSND_GEN_M_REG(MIX_MDBDR, 0xd24, 0x40), 254 RSND_GEN_M_REG(MIX_MDBER, 0xd28, 0x40), 255 RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100), 256 RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100), 257 RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100), 258 RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100), 259 RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100), 260 RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100), 261 RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100), 262 RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100), 263 RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100), 264 RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100), 265 RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100), 266 }; 267 struct rsnd_regmap_field_conf conf_adg[] = { 268 RSND_GEN_S_REG(BRRA, 0x00), 269 RSND_GEN_S_REG(BRRB, 0x04), 270 RSND_GEN_S_REG(SSICKR, 0x08), 271 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 272 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 273 RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14), 274 RSND_GEN_S_REG(DIV_EN, 0x30), 275 RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34), 276 RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38), 277 RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c), 278 RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40), 279 RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44), 280 RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48), 281 RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c), 282 RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50), 283 RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54), 284 RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58), 285 RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c), 286 }; 287 struct rsnd_regmap_field_conf conf_ssi[] = { 288 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 289 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 290 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 291 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 292 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 293 }; 294 int ret_ssiu; 295 int ret_scu; 296 int ret_adg; 297 int ret_ssi; 298 299 ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu); 300 ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu); 301 ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg); 302 ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi); 303 if (ret_ssiu < 0 || 304 ret_scu < 0 || 305 ret_adg < 0 || 306 ret_ssi < 0) 307 return ret_ssiu | ret_scu | ret_adg | ret_ssi; 308 309 return 0; 310 } 311 312 /* 313 * Gen1 314 */ 315 316 static int rsnd_gen1_probe(struct platform_device *pdev, 317 struct rsnd_priv *priv) 318 { 319 struct rsnd_regmap_field_conf conf_sru[] = { 320 RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00), 321 RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08), 322 RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c), 323 RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10), 324 RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0), 325 RSND_GEN_S_REG(SSI_MODE0, 0xD0), 326 RSND_GEN_S_REG(SSI_MODE1, 0xD4), 327 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4), 328 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8), 329 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 330 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 331 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 332 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 333 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 334 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 335 RSND_GEN_M_REG(SRC_MNFSR, 0x228, 0x40), 336 /* 337 * ADD US 338 * 339 * SRC_STATUS 340 * SRC_INT_EN 341 * SCU_SYS_STATUS0 342 * SCU_SYS_STATUS1 343 * SCU_SYS_INT_EN0 344 * SCU_SYS_INT_EN1 345 */ 346 }; 347 struct rsnd_regmap_field_conf conf_adg[] = { 348 RSND_GEN_S_REG(BRRA, 0x00), 349 RSND_GEN_S_REG(BRRB, 0x04), 350 RSND_GEN_S_REG(SSICKR, 0x08), 351 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 352 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 353 RSND_GEN_S_REG(AUDIO_CLK_SEL3, 0x18), 354 RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c), 355 RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20), 356 }; 357 struct rsnd_regmap_field_conf conf_ssi[] = { 358 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 359 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 360 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 361 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 362 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 363 }; 364 int ret_sru; 365 int ret_adg; 366 int ret_ssi; 367 368 ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru); 369 ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg); 370 ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi); 371 if (ret_sru < 0 || 372 ret_adg < 0 || 373 ret_ssi < 0) 374 return ret_sru | ret_adg | ret_ssi; 375 376 return 0; 377 } 378 379 /* 380 * Gen 381 */ 382 static void rsnd_of_parse_gen(struct platform_device *pdev, 383 const struct rsnd_of_data *of_data, 384 struct rsnd_priv *priv) 385 { 386 struct rcar_snd_info *info = priv->info; 387 388 if (!of_data) 389 return; 390 391 info->flags = of_data->flags; 392 } 393 394 int rsnd_gen_probe(struct platform_device *pdev, 395 const struct rsnd_of_data *of_data, 396 struct rsnd_priv *priv) 397 { 398 struct device *dev = rsnd_priv_to_dev(priv); 399 struct rsnd_gen *gen; 400 int ret; 401 402 rsnd_of_parse_gen(pdev, of_data, priv); 403 404 gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL); 405 if (!gen) { 406 dev_err(dev, "GEN allocate failed\n"); 407 return -ENOMEM; 408 } 409 410 priv->gen = gen; 411 412 ret = -ENODEV; 413 if (rsnd_is_gen1(priv)) 414 ret = rsnd_gen1_probe(pdev, priv); 415 else if (rsnd_is_gen2(priv)) 416 ret = rsnd_gen2_probe(pdev, priv); 417 418 if (ret < 0) 419 dev_err(dev, "unknown generation R-Car sound device\n"); 420 421 return ret; 422 } 423