sound/soc/sh/rcar/rsnd.h

   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         RSND_REG_SHARE23,
  95         RSND_REG_SHARE24,
  96         RSND_REG_SHARE25,
  97
  98         RSND_REG_MAX,
  99 };
 100
 101 /* Gen1 only */
 102 #define RSND_REG_SRC_ROUTE_SEL          RSND_REG_SHARE01
 103 #define RSND_REG_SRC_TMG_SEL0           RSND_REG_SHARE02
 104 #define RSND_REG_SRC_TMG_SEL1           RSND_REG_SHARE03
 105 #define RSND_REG_SRC_TMG_SEL2           RSND_REG_SHARE04
 106 #define RSND_REG_SRC_ROUTE_CTRL         RSND_REG_SHARE05
 107 #define RSND_REG_SRC_MNFSR              RSND_REG_SHARE06
 108 #define RSND_REG_AUDIO_CLK_SEL3         RSND_REG_SHARE07
 109 #define RSND_REG_AUDIO_CLK_SEL4         RSND_REG_SHARE08
 110 #define RSND_REG_AUDIO_CLK_SEL5         RSND_REG_SHARE09
 111
 112 /* Gen2 only */
 113 #define RSND_REG_SRC_CTRL               RSND_REG_SHARE01
 114 #define RSND_REG_SSI_CTRL               RSND_REG_SHARE02
 115 #define RSND_REG_SSI_BUSIF_MODE         RSND_REG_SHARE03
 116 #define RSND_REG_SSI_BUSIF_ADINR        RSND_REG_SHARE04
 117 #define RSND_REG_INT_ENABLE             RSND_REG_SHARE05
 118 #define RSND_REG_SRC_BSDSR              RSND_REG_SHARE06
 119 #define RSND_REG_SRC_BSISR              RSND_REG_SHARE07
 120 #define RSND_REG_DIV_EN                 RSND_REG_SHARE08
 121 #define RSND_REG_SRCIN_TIMSEL0          RSND_REG_SHARE09
 122 #define RSND_REG_SRCIN_TIMSEL1          RSND_REG_SHARE10
 123 #define RSND_REG_SRCIN_TIMSEL2          RSND_REG_SHARE11
 124 #define RSND_REG_SRCIN_TIMSEL3          RSND_REG_SHARE12
 125 #define RSND_REG_SRCIN_TIMSEL4          RSND_REG_SHARE13
 126 #define RSND_REG_SRCOUT_TIMSEL0         RSND_REG_SHARE14
 127 #define RSND_REG_SRCOUT_TIMSEL1         RSND_REG_SHARE15
 128 #define RSND_REG_SRCOUT_TIMSEL2         RSND_REG_SHARE16
 129 #define RSND_REG_SRCOUT_TIMSEL3         RSND_REG_SHARE17
 130 #define RSND_REG_SRCOUT_TIMSEL4         RSND_REG_SHARE18
 131 #define RSND_REG_AUDIO_CLK_SEL2         RSND_REG_SHARE19
 132 #define RSND_REG_CMD_CTRL               RSND_REG_SHARE20
 133 #define RSND_REG_CMDOUT_TIMSEL          RSND_REG_SHARE21
 134 #define RSND_REG_BUSIF_DALIGN           RSND_REG_SHARE22
 135 #define RSND_REG_DVC_VRCTR              RSND_REG_SHARE23
 136 #define RSND_REG_DVC_VRPDR              RSND_REG_SHARE24
 137 #define RSND_REG_DVC_VRDBR              RSND_REG_SHARE25
 138
 139 struct rsnd_of_data;
 140 struct rsnd_priv;
 141 struct rsnd_mod;
 142 struct rsnd_dai;
 143 struct rsnd_dai_stream;
 144
 145 /*
 146  *      R-Car basic functions
 147  */
 148 #define rsnd_mod_read(m, r) \
 149         rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
 150 #define rsnd_mod_write(m, r, d) \
 151         rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
 152 #define rsnd_mod_bset(m, r, s, d) \
 153         rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
 154
 155 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
 156 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
 157                 enum rsnd_reg reg, u32 data);
 158 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
 159                     u32 mask, u32 data);
 160 u32 rsnd_get_adinr(struct rsnd_mod *mod);
 161
 162 /*
 163  *      R-Car DMA
 164  */
 165 struct rsnd_dma {
 166         struct sh_dmae_slave    slave;
 167         struct dma_chan         *chan;
 168         enum dma_transfer_direction dir;
 169         dma_addr_t              addr;
 170 };
 171
 172 void rsnd_dma_start(struct rsnd_dma *dma);
 173 void rsnd_dma_stop(struct rsnd_dma *dma);
 174 int rsnd_dma_available(struct rsnd_dma *dma);
 175 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 176         int is_play, int id);
 177 void  rsnd_dma_quit(struct rsnd_priv *priv,
 178                     struct rsnd_dma *dma);
 179
 180
 181 /*
 182  *      R-Car sound mod
 183  */
 184 enum rsnd_mod_type {
 185         RSND_MOD_SRC = 0,
 186         RSND_MOD_SSI,
 187         RSND_MOD_DVC,
 188         RSND_MOD_MAX,
 189 };
 190
 191 struct rsnd_mod_ops {
 192         char *name;
 193         char* (*dma_name)(struct rsnd_mod *mod);
 194         int (*probe)(struct rsnd_mod *mod,
 195                      struct rsnd_dai *rdai);
 196         int (*remove)(struct rsnd_mod *mod,
 197                       struct rsnd_dai *rdai);
 198         int (*init)(struct rsnd_mod *mod,
 199                     struct rsnd_dai *rdai);
 200         int (*quit)(struct rsnd_mod *mod,
 201                     struct rsnd_dai *rdai);
 202         int (*start)(struct rsnd_mod *mod,
 203                      struct rsnd_dai *rdai);
 204         int (*stop)(struct rsnd_mod *mod,
 205                     struct rsnd_dai *rdai);
 206         int (*pcm_new)(struct rsnd_mod *mod,
 207                        struct rsnd_dai *rdai,
 208                        struct snd_soc_pcm_runtime *rtd);
 209         int (*fallback)(struct rsnd_mod *mod,
 210                         struct rsnd_dai *rdai);
 211 };
 212
 213 struct rsnd_dai_stream;
 214 struct rsnd_mod {
 215         int id;
 216         enum rsnd_mod_type type;
 217         struct rsnd_priv *priv;
 218         struct rsnd_mod_ops *ops;
 219         struct rsnd_dma dma;
 220         struct rsnd_dai_stream *io;
 221 };
 222
 223 #define rsnd_mod_to_priv(mod) ((mod)->priv)
 224 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
 225 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
 226 #define rsnd_mod_to_io(mod) ((mod)->io)
 227 #define rsnd_mod_id(mod) ((mod)->id)
 228
 229 void rsnd_mod_init(struct rsnd_priv *priv,
 230                    struct rsnd_mod *mod,
 231                    struct rsnd_mod_ops *ops,
 232                    enum rsnd_mod_type type,
 233                    int id);
 234 char *rsnd_mod_name(struct rsnd_mod *mod);
 235 char *rsnd_mod_dma_name(struct rsnd_mod *mod);
 236
 237 /*
 238  *      R-Car sound DAI
 239  */
 240 #define RSND_DAI_NAME_SIZE      16
 241 struct rsnd_dai_stream {
 242         struct snd_pcm_substream *substream;
 243         struct rsnd_mod *mod[RSND_MOD_MAX];
 244         struct rsnd_dai_path_info *info; /* rcar_snd.h */
 245         int byte_pos;
 246         int period_pos;
 247         int byte_per_period;
 248         int next_period_byte;
 249 };
 250 #define rsnd_io_to_mod_ssi(io)  ((io)->mod[RSND_MOD_SSI])
 251 #define rsnd_io_to_mod_src(io)  ((io)->mod[RSND_MOD_SRC])
 252 #define rsnd_io_to_mod_dvc(io)  ((io)->mod[RSND_MOD_DVC])
 253
 254 struct rsnd_dai {
 255         char name[RSND_DAI_NAME_SIZE];
 256         struct rsnd_dai_platform_info *info; /* rcar_snd.h */
 257         struct rsnd_dai_stream playback;
 258         struct rsnd_dai_stream capture;
 259
 260         unsigned int clk_master:1;
 261         unsigned int bit_clk_inv:1;
 262         unsigned int frm_clk_inv:1;
 263         unsigned int sys_delay:1;
 264         unsigned int data_alignment:1;
 265 };
 266
 267 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
 268 #define for_each_rsnd_dai(rdai, priv, i)                \
 269         for (i = 0;                                     \
 270              (i < rsnd_rdai_nr(priv)) &&                \
 271              ((rdai) = rsnd_dai_get(priv, i));          \
 272              i++)
 273
 274 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
 275 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
 276 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
 277 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
 278 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
 279
 280 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
 281 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
 282 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
 283
 284 /*
 285  *      R-Car Gen1/Gen2
 286  */
 287 int rsnd_gen_probe(struct platform_device *pdev,
 288                    const struct rsnd_of_data *of_data,
 289                    struct rsnd_priv *priv);
 290 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
 291                                struct rsnd_mod *mod,
 292                                enum rsnd_reg reg);
 293 dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv,
 294                        struct rsnd_mod *mod,
 295                        int is_play,  int is_from);
 296
 297 #define rsnd_is_gen1(s)         (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
 298 #define rsnd_is_gen2(s)         (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
 299
 300 /*
 301  *      R-Car ADG
 302  */
 303 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
 304 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
 305 int rsnd_adg_probe(struct platform_device *pdev,
 306                    const struct rsnd_of_data *of_data,
 307                    struct rsnd_priv *priv);
 308 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
 309                                   struct rsnd_mod *mod,
 310                                   unsigned int src_rate,
 311                                   unsigned int dst_rate);
 312 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
 313                                   struct rsnd_dai *rdai,
 314                                   struct rsnd_dai_stream *io,
 315                                   unsigned int src_rate,
 316                                   unsigned int dst_rate);
 317 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
 318                                      struct rsnd_dai *rdai,
 319                                      struct rsnd_dai_stream *io);
 320 int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_dai *rdai,
 321                                  struct rsnd_mod *mod,
 322                                  struct rsnd_dai_stream *io);
 323
 324 /*
 325  *      R-Car sound priv
 326  */
 327 struct rsnd_of_data {
 328         u32 flags;
 329 };
 330
 331 struct rsnd_priv {
 332
 333         struct platform_device *pdev;
 334         struct rcar_snd_info *info;
 335         spinlock_t lock;
 336
 337         /*
 338          * below value will be filled on rsnd_gen_probe()
 339          */
 340         void *gen;
 341
 342         /*
 343          * below value will be filled on rsnd_src_probe()
 344          */
 345         void *src;
 346         int src_nr;
 347
 348         /*
 349          * below value will be filled on rsnd_adg_probe()
 350          */
 351         void *adg;
 352
 353         /*
 354          * below value will be filled on rsnd_ssi_probe()
 355          */
 356         void *ssi;
 357         int ssi_nr;
 358
 359         /*
 360          * below value will be filled on rsnd_dvc_probe()
 361          */
 362         void *dvc;
 363         int dvc_nr;
 364
 365         /*
 366          * below value will be filled on rsnd_dai_probe()
 367          */
 368         struct snd_soc_dai_driver *daidrv;
 369         struct rsnd_dai *rdai;
 370         int rdai_nr;
 371 };
 372
 373 #define rsnd_priv_to_pdev(priv) ((priv)->pdev)
 374 #define rsnd_priv_to_dev(priv)  (&(rsnd_priv_to_pdev(priv)->dev))
 375 #define rsnd_priv_to_info(priv) ((priv)->info)
 376 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
 377 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
 378
 379 #define rsnd_info_is_playback(priv, type)                               \
 380 ({                                                                      \
 381         struct rcar_snd_info *info = rsnd_priv_to_info(priv);           \
 382         int i, is_play = 0;                                             \
 383         for (i = 0; i < info->dai_info_nr; i++) {                       \
 384                 if (info->dai_info[i].playback.type == (type)->info) {  \
 385                         is_play = 1;                                    \
 386                         break;                                          \
 387                 }                                                       \
 388         }                                                               \
 389         is_play;                                                        \
 390 })
 391
 392 /*
 393  *      R-Car SRC
 394  */
 395 int rsnd_src_probe(struct platform_device *pdev,
 396                    const struct rsnd_of_data *of_data,
 397                    struct rsnd_priv *priv);
 398 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
 399 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
 400                                    struct rsnd_dai_stream *io,
 401                                    struct snd_pcm_runtime *runtime);
 402 int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
 403                         struct rsnd_dai *rdai,
 404                         int use_busif);
 405 int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
 406                        struct rsnd_dai *rdai,
 407                        int use_busif);
 408 int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
 409                             struct rsnd_dai *rdai);
 410
 411 #define rsnd_src_nr(priv) ((priv)->src_nr)
 412
 413 /*
 414  *      R-Car SSI
 415  */
 416 int rsnd_ssi_probe(struct platform_device *pdev,
 417                    const struct rsnd_of_data *of_data,
 418                    struct rsnd_priv *priv);
 419 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
 420 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
 421
 422 /*
 423  *      R-Car DVC
 424  */
 425 int rsnd_dvc_probe(struct platform_device *pdev,
 426                    const struct rsnd_of_data *of_data,
 427                    struct rsnd_priv *priv);
 428 void rsnd_dvc_remove(struct platform_device *pdev,
 429                      struct rsnd_priv *priv);
 430 struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
 431
 432 #define rsnd_dvc_nr(priv) ((priv)->dvc_nr)
 433
 434
 435 #endif