1 /* 2 * Renesas R-Car 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 #ifndef RSND_H 12 #define RSND_H 13 14 #include <linux/clk.h> 15 #include <linux/device.h> 16 #include <linux/dma-mapping.h> 17 #include <linux/io.h> 18 #include <linux/list.h> 19 #include <linux/module.h> 20 #include <linux/of_device.h> 21 #include <linux/of_irq.h> 22 #include <linux/sh_dma.h> 23 #include <linux/workqueue.h> 24 #include <sound/rcar_snd.h> 25 #include <sound/soc.h> 26 #include <sound/pcm_params.h> 27 28 /* 29 * pseudo register 30 * 31 * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different. 32 * This driver uses pseudo register in order to hide it. 33 * see gen1/gen2 for detail 34 */ 35 enum rsnd_reg { 36 /* SRU/SCU/SSIU */ 37 RSND_REG_SSI_MODE0, 38 RSND_REG_SSI_MODE1, 39 RSND_REG_SRC_BUSIF_MODE, 40 RSND_REG_SRC_ROUTE_MODE0, 41 RSND_REG_SRC_SWRSR, 42 RSND_REG_SRC_SRCIR, 43 RSND_REG_SRC_ADINR, 44 RSND_REG_SRC_IFSCR, 45 RSND_REG_SRC_IFSVR, 46 RSND_REG_SRC_SRCCR, 47 RSND_REG_CMD_ROUTE_SLCT, 48 RSND_REG_DVC_SWRSR, 49 RSND_REG_DVC_DVUIR, 50 RSND_REG_DVC_ADINR, 51 RSND_REG_DVC_DVUCR, 52 RSND_REG_DVC_ZCMCR, 53 RSND_REG_DVC_VOL0R, 54 RSND_REG_DVC_VOL1R, 55 RSND_REG_DVC_DVUER, 56 57 /* ADG */ 58 RSND_REG_BRRA, 59 RSND_REG_BRRB, 60 RSND_REG_SSICKR, 61 RSND_REG_AUDIO_CLK_SEL0, 62 RSND_REG_AUDIO_CLK_SEL1, 63 64 /* SSI */ 65 RSND_REG_SSICR, 66 RSND_REG_SSISR, 67 RSND_REG_SSITDR, 68 RSND_REG_SSIRDR, 69 RSND_REG_SSIWSR, 70 71 /* SHARE see below */ 72 RSND_REG_SHARE01, 73 RSND_REG_SHARE02, 74 RSND_REG_SHARE03, 75 RSND_REG_SHARE04, 76 RSND_REG_SHARE05, 77 RSND_REG_SHARE06, 78 RSND_REG_SHARE07, 79 RSND_REG_SHARE08, 80 RSND_REG_SHARE09, 81 RSND_REG_SHARE10, 82 RSND_REG_SHARE11, 83 RSND_REG_SHARE12, 84 RSND_REG_SHARE13, 85 RSND_REG_SHARE14, 86 RSND_REG_SHARE15, 87 RSND_REG_SHARE16, 88 RSND_REG_SHARE17, 89 RSND_REG_SHARE18, 90 RSND_REG_SHARE19, 91 RSND_REG_SHARE20, 92 RSND_REG_SHARE21, 93 RSND_REG_SHARE22, 94 95 RSND_REG_MAX, 96 }; 97 98 /* Gen1 only */ 99 #define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01 100 #define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02 101 #define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03 102 #define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04 103 #define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05 104 #define RSND_REG_SRC_MNFSR RSND_REG_SHARE06 105 #define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07 106 #define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08 107 #define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09 108 109 /* Gen2 only */ 110 #define RSND_REG_SRC_CTRL RSND_REG_SHARE01 111 #define RSND_REG_SSI_CTRL RSND_REG_SHARE02 112 #define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03 113 #define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04 114 #define RSND_REG_INT_ENABLE RSND_REG_SHARE05 115 #define RSND_REG_SRC_BSDSR RSND_REG_SHARE06 116 #define RSND_REG_SRC_BSISR RSND_REG_SHARE07 117 #define RSND_REG_DIV_EN RSND_REG_SHARE08 118 #define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09 119 #define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10 120 #define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11 121 #define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12 122 #define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13 123 #define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14 124 #define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15 125 #define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16 126 #define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17 127 #define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18 128 #define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19 129 #define RSND_REG_CMD_CTRL RSND_REG_SHARE20 130 #define RSND_REG_CMDOUT_TIMSEL RSND_REG_SHARE21 131 #define RSND_REG_BUSIF_DALIGN RSND_REG_SHARE22 132 133 struct rsnd_of_data; 134 struct rsnd_priv; 135 struct rsnd_mod; 136 struct rsnd_dai; 137 struct rsnd_dai_stream; 138 139 /* 140 * R-Car basic functions 141 */ 142 #define rsnd_mod_read(m, r) \ 143 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r) 144 #define rsnd_mod_write(m, r, d) \ 145 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d) 146 #define rsnd_mod_bset(m, r, s, d) \ 147 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d) 148 149 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg); 150 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod, 151 enum rsnd_reg reg, u32 data); 152 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg, 153 u32 mask, u32 data); 154 u32 rsnd_get_adinr(struct rsnd_mod *mod); 155 156 /* 157 * R-Car DMA 158 */ 159 struct rsnd_dma { 160 struct sh_dmae_slave slave; 161 struct dma_chan *chan; 162 enum dma_transfer_direction dir; 163 dma_addr_t addr; 164 }; 165 166 void rsnd_dma_start(struct rsnd_dma *dma); 167 void rsnd_dma_stop(struct rsnd_dma *dma); 168 int rsnd_dma_available(struct rsnd_dma *dma); 169 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, 170 int is_play, int id); 171 void rsnd_dma_quit(struct rsnd_priv *priv, 172 struct rsnd_dma *dma); 173 174 175 /* 176 * R-Car sound mod 177 */ 178 enum rsnd_mod_type { 179 RSND_MOD_SRC = 0, 180 RSND_MOD_SSI, 181 RSND_MOD_DVC, 182 RSND_MOD_MAX, 183 }; 184 185 struct rsnd_mod_ops { 186 char *name; 187 char* (*dma_name)(struct rsnd_mod *mod); 188 int (*probe)(struct rsnd_mod *mod, 189 struct rsnd_dai *rdai); 190 int (*remove)(struct rsnd_mod *mod, 191 struct rsnd_dai *rdai); 192 int (*init)(struct rsnd_mod *mod, 193 struct rsnd_dai *rdai); 194 int (*quit)(struct rsnd_mod *mod, 195 struct rsnd_dai *rdai); 196 int (*start)(struct rsnd_mod *mod, 197 struct rsnd_dai *rdai); 198 int (*stop)(struct rsnd_mod *mod, 199 struct rsnd_dai *rdai); 200 int (*pcm_new)(struct rsnd_mod *mod, 201 struct rsnd_dai *rdai, 202 struct snd_soc_pcm_runtime *rtd); 203 }; 204 205 struct rsnd_dai_stream; 206 struct rsnd_mod { 207 int id; 208 enum rsnd_mod_type type; 209 struct rsnd_priv *priv; 210 struct rsnd_mod_ops *ops; 211 struct rsnd_dma dma; 212 struct rsnd_dai_stream *io; 213 }; 214 215 #define rsnd_mod_to_priv(mod) ((mod)->priv) 216 #define rsnd_mod_to_dma(mod) (&(mod)->dma) 217 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma) 218 #define rsnd_mod_to_io(mod) ((mod)->io) 219 #define rsnd_mod_id(mod) ((mod)->id) 220 221 void rsnd_mod_init(struct rsnd_priv *priv, 222 struct rsnd_mod *mod, 223 struct rsnd_mod_ops *ops, 224 enum rsnd_mod_type type, 225 int id); 226 char *rsnd_mod_name(struct rsnd_mod *mod); 227 char *rsnd_mod_dma_name(struct rsnd_mod *mod); 228 229 /* 230 * R-Car sound DAI 231 */ 232 #define RSND_DAI_NAME_SIZE 16 233 struct rsnd_dai_stream { 234 struct snd_pcm_substream *substream; 235 struct rsnd_mod *mod[RSND_MOD_MAX]; 236 struct rsnd_dai_path_info *info; /* rcar_snd.h */ 237 int byte_pos; 238 int period_pos; 239 int byte_per_period; 240 int next_period_byte; 241 }; 242 #define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI]) 243 #define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC]) 244 #define rsnd_io_to_mod_dvc(io) ((io)->mod[RSND_MOD_DVC]) 245 246 struct rsnd_dai { 247 char name[RSND_DAI_NAME_SIZE]; 248 struct rsnd_dai_platform_info *info; /* rcar_snd.h */ 249 struct rsnd_dai_stream playback; 250 struct rsnd_dai_stream capture; 251 252 unsigned int clk_master:1; 253 unsigned int bit_clk_inv:1; 254 unsigned int frm_clk_inv:1; 255 unsigned int sys_delay:1; 256 unsigned int data_alignment:1; 257 }; 258 259 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr) 260 #define for_each_rsnd_dai(rdai, priv, i) \ 261 for (i = 0; \ 262 (i < rsnd_rdai_nr(priv)) && \ 263 ((rdai) = rsnd_dai_get(priv, i)); \ 264 i++) 265 266 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id); 267 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io); 268 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai); 269 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info) 270 #define rsnd_io_to_runtime(io) ((io)->substream->runtime) 271 272 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt); 273 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional); 274 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master) 275 276 /* 277 * R-Car Gen1/Gen2 278 */ 279 int rsnd_gen_probe(struct platform_device *pdev, 280 const struct rsnd_of_data *of_data, 281 struct rsnd_priv *priv); 282 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv, 283 struct rsnd_mod *mod, 284 enum rsnd_reg reg); 285 dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv, 286 struct rsnd_mod *mod, 287 int is_play, int is_from); 288 289 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1) 290 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2) 291 292 /* 293 * R-Car ADG 294 */ 295 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod); 296 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate); 297 int rsnd_adg_probe(struct platform_device *pdev, 298 const struct rsnd_of_data *of_data, 299 struct rsnd_priv *priv); 300 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv, 301 struct rsnd_mod *mod, 302 unsigned int src_rate, 303 unsigned int dst_rate); 304 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod, 305 struct rsnd_dai *rdai, 306 struct rsnd_dai_stream *io, 307 unsigned int src_rate, 308 unsigned int dst_rate); 309 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod, 310 struct rsnd_dai *rdai, 311 struct rsnd_dai_stream *io); 312 int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_dai *rdai, 313 struct rsnd_mod *mod, 314 struct rsnd_dai_stream *io); 315 316 /* 317 * R-Car sound priv 318 */ 319 struct rsnd_of_data { 320 u32 flags; 321 }; 322 323 struct rsnd_priv { 324 325 struct platform_device *pdev; 326 struct rcar_snd_info *info; 327 spinlock_t lock; 328 329 /* 330 * below value will be filled on rsnd_gen_probe() 331 */ 332 void *gen; 333 334 /* 335 * below value will be filled on rsnd_src_probe() 336 */ 337 void *src; 338 int src_nr; 339 340 /* 341 * below value will be filled on rsnd_adg_probe() 342 */ 343 void *adg; 344 345 /* 346 * below value will be filled on rsnd_ssi_probe() 347 */ 348 void *ssi; 349 int ssi_nr; 350 351 /* 352 * below value will be filled on rsnd_dvc_probe() 353 */ 354 void *dvc; 355 int dvc_nr; 356 357 /* 358 * below value will be filled on rsnd_dai_probe() 359 */ 360 struct snd_soc_dai_driver *daidrv; 361 struct rsnd_dai *rdai; 362 int rdai_nr; 363 }; 364 365 #define rsnd_priv_to_pdev(priv) ((priv)->pdev) 366 #define rsnd_priv_to_dev(priv) (&(rsnd_priv_to_pdev(priv)->dev)) 367 #define rsnd_priv_to_info(priv) ((priv)->info) 368 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags) 369 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags) 370 371 #define rsnd_info_is_playback(priv, type) \ 372 ({ \ 373 struct rcar_snd_info *info = rsnd_priv_to_info(priv); \ 374 int i, is_play = 0; \ 375 for (i = 0; i < info->dai_info_nr; i++) { \ 376 if (info->dai_info[i].playback.type == (type)->info) { \ 377 is_play = 1; \ 378 break; \ 379 } \ 380 } \ 381 is_play; \ 382 }) 383 384 /* 385 * R-Car SRC 386 */ 387 int rsnd_src_probe(struct platform_device *pdev, 388 const struct rsnd_of_data *of_data, 389 struct rsnd_priv *priv); 390 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id); 391 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv, 392 struct rsnd_dai_stream *io, 393 struct snd_pcm_runtime *runtime); 394 int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod, 395 struct rsnd_dai *rdai, 396 int use_busif); 397 int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod, 398 struct rsnd_dai *rdai, 399 int use_busif); 400 int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod, 401 struct rsnd_dai *rdai); 402 403 #define rsnd_src_nr(priv) ((priv)->src_nr) 404 405 /* 406 * R-Car SSI 407 */ 408 int rsnd_ssi_probe(struct platform_device *pdev, 409 const struct rsnd_of_data *of_data, 410 struct rsnd_priv *priv); 411 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id); 412 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod); 413 414 /* 415 * R-Car DVC 416 */ 417 int rsnd_dvc_probe(struct platform_device *pdev, 418 const struct rsnd_of_data *of_data, 419 struct rsnd_priv *priv); 420 void rsnd_dvc_remove(struct platform_device *pdev, 421 struct rsnd_priv *priv); 422 struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id); 423 424 #define rsnd_dvc_nr(priv) ((priv)->dvc_nr) 425 426 427 #endif 428