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 }; 32 33 #define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen) 34 35 struct rsnd_regmap_field_conf { 36 int idx; 37 unsigned int reg_offset; 38 unsigned int id_offset; 39 }; 40 41 #define RSND_REG_SET(id, offset, _id_offset) \ 42 { \ 43 .idx = id, \ 44 .reg_offset = offset, \ 45 .id_offset = _id_offset, \ 46 } 47 /* single address mapping */ 48 #define RSND_GEN_S_REG(id, offset) \ 49 RSND_REG_SET(RSND_REG_##id, offset, 0) 50 51 /* multi address mapping */ 52 #define RSND_GEN_M_REG(id, offset, _id_offset) \ 53 RSND_REG_SET(RSND_REG_##id, offset, _id_offset) 54 55 /* 56 * basic function 57 */ 58 static int rsnd_is_accessible_reg(struct rsnd_priv *priv, 59 struct rsnd_gen *gen, enum rsnd_reg reg) 60 { 61 if (!gen->regs[reg]) { 62 struct device *dev = rsnd_priv_to_dev(priv); 63 64 dev_err(dev, "unsupported register access %x\n", reg); 65 return 0; 66 } 67 68 return 1; 69 } 70 71 u32 rsnd_read(struct rsnd_priv *priv, 72 struct rsnd_mod *mod, enum rsnd_reg reg) 73 { 74 struct device *dev = rsnd_priv_to_dev(priv); 75 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 76 u32 val; 77 78 if (!rsnd_is_accessible_reg(priv, gen, reg)) 79 return 0; 80 81 dev_dbg(dev, "r %s[%d] - %4d : %08x\n", 82 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val); 83 84 regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val); 85 86 return val; 87 } 88 89 void rsnd_write(struct rsnd_priv *priv, 90 struct rsnd_mod *mod, 91 enum rsnd_reg reg, u32 data) 92 { 93 struct device *dev = rsnd_priv_to_dev(priv); 94 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 95 96 if (!rsnd_is_accessible_reg(priv, gen, reg)) 97 return; 98 99 dev_dbg(dev, "w %s[%d] - %4d : %08x\n", 100 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data); 101 102 regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data); 103 } 104 105 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, 106 enum rsnd_reg reg, u32 mask, u32 data) 107 { 108 struct device *dev = rsnd_priv_to_dev(priv); 109 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 110 111 if (!rsnd_is_accessible_reg(priv, gen, reg)) 112 return; 113 114 dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n", 115 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask); 116 117 regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod), 118 mask, data); 119 } 120 121 #define rsnd_gen_regmap_init(priv, id_size, reg_id, conf) \ 122 _rsnd_gen_regmap_init(priv, id_size, reg_id, conf, ARRAY_SIZE(conf)) 123 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv, 124 int id_size, 125 int reg_id, 126 struct rsnd_regmap_field_conf *conf, 127 int conf_size) 128 { 129 struct platform_device *pdev = rsnd_priv_to_pdev(priv); 130 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 131 struct device *dev = rsnd_priv_to_dev(priv); 132 struct resource *res; 133 struct regmap_config regc; 134 struct regmap_field *regs; 135 struct regmap *regmap; 136 struct reg_field regf; 137 void __iomem *base; 138 int i; 139 140 memset(®c, 0, sizeof(regc)); 141 regc.reg_bits = 32; 142 regc.val_bits = 32; 143 regc.reg_stride = 4; 144 145 res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id); 146 if (!res) 147 return -ENODEV; 148 149 base = devm_ioremap_resource(dev, res); 150 if (IS_ERR(base)) 151 return PTR_ERR(base); 152 153 regmap = devm_regmap_init_mmio(dev, base, ®c); 154 if (IS_ERR(regmap)) 155 return PTR_ERR(regmap); 156 157 gen->base[reg_id] = base; 158 gen->regmap[reg_id] = regmap; 159 160 for (i = 0; i < conf_size; i++) { 161 162 regf.reg = conf[i].reg_offset; 163 regf.id_offset = conf[i].id_offset; 164 regf.lsb = 0; 165 regf.msb = 31; 166 regf.id_size = id_size; 167 168 regs = devm_regmap_field_alloc(dev, regmap, regf); 169 if (IS_ERR(regs)) 170 return PTR_ERR(regs); 171 172 gen->regs[conf[i].idx] = regs; 173 } 174 175 return 0; 176 } 177 178 /* 179 * DMA read/write register offset 180 * 181 * RSND_xxx_I_N for Audio DMAC input 182 * RSND_xxx_O_N for Audio DMAC output 183 * RSND_xxx_I_P for Audio DMAC peri peri input 184 * RSND_xxx_O_P for Audio DMAC peri peri output 185 * 186 * ex) R-Car H2 case 187 * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out 188 * SSI : 0xec541000 / 0xec241008 / 0xec24100c 189 * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 0xec400000 / 0xec400000 190 * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000 191 * CMD : 0xec500000 / / 0xec008000 0xec308000 192 */ 193 #define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8) 194 #define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc) 195 196 #define RDMA_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) 197 #define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) 198 199 #define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) 200 #define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) 201 202 #define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i)) 203 #define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i)) 204 205 #define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i)) 206 #define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i)) 207 208 #define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i)) 209 #define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i)) 210 211 static dma_addr_t 212 rsnd_gen2_dma_addr(struct rsnd_priv *priv, 213 struct rsnd_mod *mod, 214 int is_play, int is_from) 215 { 216 struct platform_device *pdev = rsnd_priv_to_pdev(priv); 217 struct device *dev = rsnd_priv_to_dev(priv); 218 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); 219 dma_addr_t ssi_reg = platform_get_resource(pdev, 220 IORESOURCE_MEM, RSND_GEN2_SSI)->start; 221 dma_addr_t src_reg = platform_get_resource(pdev, 222 IORESOURCE_MEM, RSND_GEN2_SCU)->start; 223 int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod); 224 int use_src = !!rsnd_io_to_mod_src(io); 225 int use_dvc = !!rsnd_io_to_mod_dvc(io); 226 int id = rsnd_mod_id(mod); 227 struct dma_addr { 228 dma_addr_t out_addr; 229 dma_addr_t in_addr; 230 } dma_addrs[3][2][3] = { 231 /* SRC */ 232 {{{ 0, 0 }, 233 /* Capture */ 234 { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) }, 235 { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } }, 236 /* Playback */ 237 {{ 0, 0, }, 238 { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) }, 239 { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } } 240 }, 241 /* SSI */ 242 /* Capture */ 243 {{{ RDMA_SSI_O_N(ssi, id), 0 }, 244 { RDMA_SSIU_O_P(ssi, id), 0 }, 245 { RDMA_SSIU_O_P(ssi, id), 0 } }, 246 /* Playback */ 247 {{ 0, RDMA_SSI_I_N(ssi, id) }, 248 { 0, RDMA_SSIU_I_P(ssi, id) }, 249 { 0, RDMA_SSIU_I_P(ssi, id) } } 250 }, 251 /* SSIU */ 252 /* Capture */ 253 {{{ RDMA_SSIU_O_N(ssi, id), 0 }, 254 { RDMA_SSIU_O_P(ssi, id), 0 }, 255 { RDMA_SSIU_O_P(ssi, id), 0 } }, 256 /* Playback */ 257 {{ 0, RDMA_SSIU_I_N(ssi, id) }, 258 { 0, RDMA_SSIU_I_P(ssi, id) }, 259 { 0, RDMA_SSIU_I_P(ssi, id) } } }, 260 }; 261 262 /* it shouldn't happen */ 263 if (use_dvc && !use_src) 264 dev_err(dev, "DVC is selected without SRC\n"); 265 266 /* use SSIU or SSI ? */ 267 if (is_ssi && (0 == strcmp(rsnd_mod_dma_name(mod), "ssiu"))) 268 is_ssi++; 269 270 return (is_from) ? 271 dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr : 272 dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr; 273 } 274 275 dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv, 276 struct rsnd_mod *mod, 277 int is_play, int is_from) 278 { 279 /* 280 * gen1 uses default DMA addr 281 */ 282 if (rsnd_is_gen1(priv)) 283 return 0; 284 285 if (!mod) 286 return 0; 287 288 return rsnd_gen2_dma_addr(priv, mod, is_play, is_from); 289 } 290 291 /* 292 * Gen2 293 */ 294 static int rsnd_gen2_probe(struct platform_device *pdev, 295 struct rsnd_priv *priv) 296 { 297 struct device *dev = rsnd_priv_to_dev(priv); 298 struct rsnd_regmap_field_conf conf_ssiu[] = { 299 RSND_GEN_S_REG(SSI_MODE0, 0x800), 300 RSND_GEN_S_REG(SSI_MODE1, 0x804), 301 /* FIXME: it needs SSI_MODE2/3 in the future */ 302 RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80), 303 RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80), 304 RSND_GEN_M_REG(BUSIF_DALIGN, 0x8, 0x80), 305 RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), 306 RSND_GEN_M_REG(INT_ENABLE, 0x18, 0x80), 307 }; 308 struct rsnd_regmap_field_conf conf_scu[] = { 309 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 0x20), 310 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20), 311 RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20), 312 RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20), 313 RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20), 314 RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20), 315 RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8), 316 RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc), 317 RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0), 318 RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1c4), 319 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 320 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 321 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 322 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 323 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 324 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 325 RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40), 326 RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40), 327 RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100), 328 RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100), 329 RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100), 330 RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100), 331 RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100), 332 RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100), 333 RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100), 334 RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100), 335 RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100), 336 RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100), 337 RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100), 338 }; 339 struct rsnd_regmap_field_conf conf_adg[] = { 340 RSND_GEN_S_REG(BRRA, 0x00), 341 RSND_GEN_S_REG(BRRB, 0x04), 342 RSND_GEN_S_REG(SSICKR, 0x08), 343 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 344 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 345 RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14), 346 RSND_GEN_S_REG(DIV_EN, 0x30), 347 RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34), 348 RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38), 349 RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c), 350 RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40), 351 RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44), 352 RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48), 353 RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c), 354 RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50), 355 RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54), 356 RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58), 357 RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c), 358 }; 359 struct rsnd_regmap_field_conf conf_ssi[] = { 360 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 361 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 362 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 363 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 364 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 365 }; 366 int ret_ssiu; 367 int ret_scu; 368 int ret_adg; 369 int ret_ssi; 370 371 ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, conf_ssiu); 372 ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, conf_scu); 373 ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, conf_adg); 374 ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, conf_ssi); 375 if (ret_ssiu < 0 || 376 ret_scu < 0 || 377 ret_adg < 0 || 378 ret_ssi < 0) 379 return ret_ssiu | ret_scu | ret_adg | ret_ssi; 380 381 dev_dbg(dev, "Gen2 is probed\n"); 382 383 return 0; 384 } 385 386 /* 387 * Gen1 388 */ 389 390 static int rsnd_gen1_probe(struct platform_device *pdev, 391 struct rsnd_priv *priv) 392 { 393 struct device *dev = rsnd_priv_to_dev(priv); 394 struct rsnd_regmap_field_conf conf_sru[] = { 395 RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00), 396 RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08), 397 RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c), 398 RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10), 399 RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0), 400 RSND_GEN_S_REG(SSI_MODE0, 0xD0), 401 RSND_GEN_S_REG(SSI_MODE1, 0xD4), 402 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4), 403 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8), 404 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 405 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 406 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 407 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 408 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 409 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 410 RSND_GEN_M_REG(SRC_MNFSR, 0x228, 0x40), 411 /* 412 * ADD US 413 * 414 * SRC_STATUS 415 * SRC_INT_EN 416 * SCU_SYS_STATUS0 417 * SCU_SYS_STATUS1 418 * SCU_SYS_INT_EN0 419 * SCU_SYS_INT_EN1 420 */ 421 }; 422 struct rsnd_regmap_field_conf conf_adg[] = { 423 RSND_GEN_S_REG(BRRA, 0x00), 424 RSND_GEN_S_REG(BRRB, 0x04), 425 RSND_GEN_S_REG(SSICKR, 0x08), 426 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 427 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 428 RSND_GEN_S_REG(AUDIO_CLK_SEL3, 0x18), 429 RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c), 430 RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20), 431 }; 432 struct rsnd_regmap_field_conf conf_ssi[] = { 433 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 434 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 435 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 436 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 437 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 438 }; 439 int ret_sru; 440 int ret_adg; 441 int ret_ssi; 442 443 ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, conf_sru); 444 ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, conf_adg); 445 ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, conf_ssi); 446 if (ret_sru < 0 || 447 ret_adg < 0 || 448 ret_ssi < 0) 449 return ret_sru | ret_adg | ret_ssi; 450 451 dev_dbg(dev, "Gen1 is probed\n"); 452 453 return 0; 454 } 455 456 /* 457 * Gen 458 */ 459 static void rsnd_of_parse_gen(struct platform_device *pdev, 460 const struct rsnd_of_data *of_data, 461 struct rsnd_priv *priv) 462 { 463 struct rcar_snd_info *info = priv->info; 464 465 if (!of_data) 466 return; 467 468 info->flags = of_data->flags; 469 } 470 471 int rsnd_gen_probe(struct platform_device *pdev, 472 const struct rsnd_of_data *of_data, 473 struct rsnd_priv *priv) 474 { 475 struct device *dev = rsnd_priv_to_dev(priv); 476 struct rsnd_gen *gen; 477 int ret; 478 479 rsnd_of_parse_gen(pdev, of_data, priv); 480 481 gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL); 482 if (!gen) { 483 dev_err(dev, "GEN allocate failed\n"); 484 return -ENOMEM; 485 } 486 487 priv->gen = gen; 488 489 ret = -ENODEV; 490 if (rsnd_is_gen1(priv)) 491 ret = rsnd_gen1_probe(pdev, priv); 492 else if (rsnd_is_gen2(priv)) 493 ret = rsnd_gen2_probe(pdev, priv); 494 495 if (ret < 0) 496 dev_err(dev, "unknown generation R-Car sound device\n"); 497 498 return ret; 499 } 500