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 24struct 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 36struct 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 */ 59static 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 72u32 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 90void 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 106void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, 107 enum rsnd_reg reg, u32 mask, u32 data) 108{ 109 struct device *dev = rsnd_priv_to_dev(priv); 110 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 111 112 if (!rsnd_is_accessible_reg(priv, gen, reg)) 113 return; 114 115 dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n", 116 rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask); 117 118 regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod), 119 mask, data); 120} 121 122phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id) 123{ 124 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 125 126 return gen->res[reg_id]; 127} 128 129#define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \ 130 _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf)) 131static int _rsnd_gen_regmap_init(struct rsnd_priv *priv, 132 int id_size, 133 int reg_id, 134 const char *name, 135 struct rsnd_regmap_field_conf *conf, 136 int conf_size) 137{ 138 struct platform_device *pdev = rsnd_priv_to_pdev(priv); 139 struct rsnd_gen *gen = rsnd_priv_to_gen(priv); 140 struct device *dev = rsnd_priv_to_dev(priv); 141 struct resource *res; 142 struct regmap_config regc; 143 struct regmap_field *regs; 144 struct regmap *regmap; 145 struct reg_field regf; 146 void __iomem *base; 147 int i; 148 149 memset(®c, 0, sizeof(regc)); 150 regc.reg_bits = 32; 151 regc.val_bits = 32; 152 regc.reg_stride = 4; 153 regc.name = name; 154 155 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); 156 if (!res) 157 res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id); 158 if (!res) 159 return -ENODEV; 160 161 base = devm_ioremap_resource(dev, res); 162 if (IS_ERR(base)) 163 return PTR_ERR(base); 164 165 regmap = devm_regmap_init_mmio(dev, base, ®c); 166 if (IS_ERR(regmap)) 167 return PTR_ERR(regmap); 168 169 gen->base[reg_id] = base; 170 gen->regmap[reg_id] = regmap; 171 gen->res[reg_id] = res->start; 172 173 for (i = 0; i < conf_size; i++) { 174 175 regf.reg = conf[i].reg_offset; 176 regf.id_offset = conf[i].id_offset; 177 regf.lsb = 0; 178 regf.msb = 31; 179 regf.id_size = id_size; 180 181 regs = devm_regmap_field_alloc(dev, regmap, regf); 182 if (IS_ERR(regs)) 183 return PTR_ERR(regs); 184 185 gen->regs[conf[i].idx] = regs; 186 } 187 188 return 0; 189} 190 191/* 192 * Gen2 193 */ 194static int rsnd_gen2_probe(struct platform_device *pdev, 195 struct rsnd_priv *priv) 196{ 197 struct rsnd_regmap_field_conf conf_ssiu[] = { 198 RSND_GEN_S_REG(SSI_MODE0, 0x800), 199 RSND_GEN_S_REG(SSI_MODE1, 0x804), 200 /* FIXME: it needs SSI_MODE2/3 in the future */ 201 RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80), 202 RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80), 203 RSND_GEN_M_REG(BUSIF_DALIGN, 0x8, 0x80), 204 RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80), 205 RSND_GEN_M_REG(INT_ENABLE, 0x18, 0x80), 206 }; 207 struct rsnd_regmap_field_conf conf_scu[] = { 208 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 0x20), 209 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20), 210 RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20), 211 RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20), 212 RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20), 213 RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20), 214 RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8), 215 RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc), 216 RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0), 217 RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1d4), 218 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 219 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 220 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 221 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 222 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 223 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 224 RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40), 225 RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40), 226 RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100), 227 RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100), 228 RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100), 229 RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100), 230 RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100), 231 RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100), 232 RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100), 233 RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100), 234 RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100), 235 RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100), 236 RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100), 237 }; 238 struct rsnd_regmap_field_conf conf_adg[] = { 239 RSND_GEN_S_REG(BRRA, 0x00), 240 RSND_GEN_S_REG(BRRB, 0x04), 241 RSND_GEN_S_REG(SSICKR, 0x08), 242 RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c), 243 RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10), 244 RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14), 245 RSND_GEN_S_REG(DIV_EN, 0x30), 246 RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34), 247 RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38), 248 RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c), 249 RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40), 250 RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44), 251 RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48), 252 RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c), 253 RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50), 254 RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54), 255 RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58), 256 RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c), 257 }; 258 struct rsnd_regmap_field_conf conf_ssi[] = { 259 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 260 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 261 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 262 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 263 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 264 }; 265 int ret_ssiu; 266 int ret_scu; 267 int ret_adg; 268 int ret_ssi; 269 270 ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu); 271 ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu); 272 ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg); 273 ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi); 274 if (ret_ssiu < 0 || 275 ret_scu < 0 || 276 ret_adg < 0 || 277 ret_ssi < 0) 278 return ret_ssiu | ret_scu | ret_adg | ret_ssi; 279 280 return 0; 281} 282 283/* 284 * Gen1 285 */ 286 287static int rsnd_gen1_probe(struct platform_device *pdev, 288 struct rsnd_priv *priv) 289{ 290 struct rsnd_regmap_field_conf conf_sru[] = { 291 RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00), 292 RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08), 293 RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c), 294 RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10), 295 RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0), 296 RSND_GEN_S_REG(SSI_MODE0, 0xD0), 297 RSND_GEN_S_REG(SSI_MODE1, 0xD4), 298 RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4), 299 RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8), 300 RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40), 301 RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40), 302 RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40), 303 RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40), 304 RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40), 305 RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40), 306 RSND_GEN_M_REG(SRC_MNFSR, 0x228, 0x40), 307 /* 308 * ADD US 309 * 310 * SRC_STATUS 311 * SRC_INT_EN 312 * SCU_SYS_STATUS0 313 * SCU_SYS_STATUS1 314 * SCU_SYS_INT_EN0 315 * SCU_SYS_INT_EN1 316 */ 317 }; 318 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(SSICKR, 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_SEL3, 0x18), 325 RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c), 326 RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20), 327 }; 328 struct rsnd_regmap_field_conf conf_ssi[] = { 329 RSND_GEN_M_REG(SSICR, 0x00, 0x40), 330 RSND_GEN_M_REG(SSISR, 0x04, 0x40), 331 RSND_GEN_M_REG(SSITDR, 0x08, 0x40), 332 RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40), 333 RSND_GEN_M_REG(SSIWSR, 0x20, 0x40), 334 }; 335 int ret_sru; 336 int ret_adg; 337 int ret_ssi; 338 339 ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru); 340 ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg); 341 ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi); 342 if (ret_sru < 0 || 343 ret_adg < 0 || 344 ret_ssi < 0) 345 return ret_sru | ret_adg | ret_ssi; 346 347 return 0; 348} 349 350/* 351 * Gen 352 */ 353static void rsnd_of_parse_gen(struct platform_device *pdev, 354 const struct rsnd_of_data *of_data, 355 struct rsnd_priv *priv) 356{ 357 struct rcar_snd_info *info = priv->info; 358 359 if (!of_data) 360 return; 361 362 info->flags = of_data->flags; 363} 364 365int rsnd_gen_probe(struct platform_device *pdev, 366 const struct rsnd_of_data *of_data, 367 struct rsnd_priv *priv) 368{ 369 struct device *dev = rsnd_priv_to_dev(priv); 370 struct rsnd_gen *gen; 371 int ret; 372 373 rsnd_of_parse_gen(pdev, of_data, priv); 374 375 gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL); 376 if (!gen) { 377 dev_err(dev, "GEN allocate failed\n"); 378 return -ENOMEM; 379 } 380 381 priv->gen = gen; 382 383 ret = -ENODEV; 384 if (rsnd_is_gen1(priv)) 385 ret = rsnd_gen1_probe(pdev, priv); 386 else if (rsnd_is_gen2(priv)) 387 ret = rsnd_gen2_probe(pdev, priv); 388 389 if (ret < 0) 390 dev_err(dev, "unknown generation R-Car sound device\n"); 391 392 return ret; 393} 394