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/sh_dma.h> 21 #include <linux/workqueue.h> 22 #include <sound/rcar_snd.h> 23 #include <sound/soc.h> 24 #include <sound/pcm_params.h> 25 26 /* 27 * pseudo register 28 * 29 * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different. 30 * This driver uses pseudo register in order to hide it. 31 * see gen1/gen2 for detail 32 */ 33 enum rsnd_reg { 34 /* SRU/SCU/SSIU */ 35 RSND_REG_SRC_ROUTE_SEL, /* for Gen1 */ 36 RSND_REG_SRC_TMG_SEL0, /* for Gen1 */ 37 RSND_REG_SRC_TMG_SEL1, /* for Gen1 */ 38 RSND_REG_SRC_TMG_SEL2, /* for Gen1 */ 39 RSND_REG_SRC_ROUTE_CTRL, /* for Gen1 */ 40 RSND_REG_SRC_CTRL, /* for Gen2 */ 41 RSND_REG_SSI_CTRL, /* for Gen2 */ 42 RSND_REG_SSI_CONTROL, 43 RSND_REG_SSI_BUSIF_MODE, /* for Gen2 */ 44 RSND_REG_SSI_BUSIF_ADINR, /* for Gen2 */ 45 RSND_REG_SSI_MODE0, 46 RSND_REG_SSI_MODE1, 47 RSND_REG_INT_ENABLE, /* for Gen2 */ 48 RSND_REG_SRC_BUSIF_MODE, 49 RSND_REG_SRC_ROUTE_MODE0, 50 RSND_REG_SRC_SWRSR, 51 RSND_REG_SRC_SRCIR, 52 RSND_REG_SRC_ADINR, 53 RSND_REG_SRC_IFSCR, 54 RSND_REG_SRC_IFSVR, 55 RSND_REG_SRC_SRCCR, 56 RSND_REG_SRC_MNFSR, /* for Gen1 */ 57 RSND_REG_SRC_BSDSR, /* for Gen2 */ 58 RSND_REG_SRC_BSISR, /* for Gen2 */ 59 60 /* ADG */ 61 RSND_REG_BRRA, 62 RSND_REG_BRRB, 63 RSND_REG_SSICKR, 64 RSND_REG_AUDIO_CLK_SEL0, 65 RSND_REG_AUDIO_CLK_SEL1, 66 RSND_REG_AUDIO_CLK_SEL2, 67 RSND_REG_AUDIO_CLK_SEL3, /* for Gen1 */ 68 RSND_REG_AUDIO_CLK_SEL4, /* for Gen1 */ 69 RSND_REG_AUDIO_CLK_SEL5, /* for Gen1 */ 70 RSND_REG_DIV_EN, /* for Gen2 */ 71 RSND_REG_SRCIN_TIMSEL0, /* for Gen2 */ 72 RSND_REG_SRCIN_TIMSEL1, /* for Gen2 */ 73 RSND_REG_SRCIN_TIMSEL2, /* for Gen2 */ 74 RSND_REG_SRCIN_TIMSEL3, /* for Gen2 */ 75 RSND_REG_SRCIN_TIMSEL4, /* for Gen2 */ 76 RSND_REG_SRCOUT_TIMSEL0, /* for Gen2 */ 77 RSND_REG_SRCOUT_TIMSEL1, /* for Gen2 */ 78 RSND_REG_SRCOUT_TIMSEL2, /* for Gen2 */ 79 RSND_REG_SRCOUT_TIMSEL3, /* for Gen2 */ 80 RSND_REG_SRCOUT_TIMSEL4, /* for Gen2 */ 81 82 /* SSI */ 83 RSND_REG_SSICR, 84 RSND_REG_SSISR, 85 RSND_REG_SSITDR, 86 RSND_REG_SSIRDR, 87 RSND_REG_SSIWSR, 88 89 RSND_REG_MAX, 90 }; 91 92 struct rsnd_priv; 93 struct rsnd_mod; 94 struct rsnd_dai; 95 struct rsnd_dai_stream; 96 97 /* 98 * R-Car basic functions 99 */ 100 #define rsnd_mod_read(m, r) \ 101 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r) 102 #define rsnd_mod_write(m, r, d) \ 103 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d) 104 #define rsnd_mod_bset(m, r, s, d) \ 105 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d) 106 107 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg); 108 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod, 109 enum rsnd_reg reg, u32 data); 110 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg, 111 u32 mask, u32 data); 112 113 /* 114 * R-Car DMA 115 */ 116 struct rsnd_dma { 117 struct sh_dmae_slave slave; 118 struct work_struct work; 119 struct dma_chan *chan; 120 enum dma_data_direction dir; 121 122 int submit_loop; 123 int offset; /* it cares A/B plane */ 124 }; 125 126 void rsnd_dma_start(struct rsnd_dma *dma); 127 void rsnd_dma_stop(struct rsnd_dma *dma); 128 int rsnd_dma_available(struct rsnd_dma *dma); 129 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, 130 int is_play, int id); 131 void rsnd_dma_quit(struct rsnd_priv *priv, 132 struct rsnd_dma *dma); 133 134 135 /* 136 * R-Car sound mod 137 */ 138 139 struct rsnd_mod_ops { 140 char *name; 141 int (*init)(struct rsnd_mod *mod, 142 struct rsnd_dai *rdai, 143 struct rsnd_dai_stream *io); 144 int (*quit)(struct rsnd_mod *mod, 145 struct rsnd_dai *rdai, 146 struct rsnd_dai_stream *io); 147 int (*start)(struct rsnd_mod *mod, 148 struct rsnd_dai *rdai, 149 struct rsnd_dai_stream *io); 150 int (*stop)(struct rsnd_mod *mod, 151 struct rsnd_dai *rdai, 152 struct rsnd_dai_stream *io); 153 }; 154 155 struct rsnd_dai_stream; 156 struct rsnd_mod { 157 int id; 158 struct rsnd_priv *priv; 159 struct rsnd_mod_ops *ops; 160 struct list_head list; /* connect to rsnd_dai playback/capture */ 161 struct rsnd_dma dma; 162 struct rsnd_dai_stream *io; 163 }; 164 165 #define rsnd_mod_to_priv(mod) ((mod)->priv) 166 #define rsnd_mod_to_dma(mod) (&(mod)->dma) 167 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma) 168 #define rsnd_mod_to_io(mod) ((mod)->io) 169 #define rsnd_mod_id(mod) ((mod)->id) 170 #define for_each_rsnd_mod(pos, n, io) \ 171 list_for_each_entry_safe(pos, n, &(io)->head, list) 172 173 void rsnd_mod_init(struct rsnd_priv *priv, 174 struct rsnd_mod *mod, 175 struct rsnd_mod_ops *ops, 176 int id); 177 char *rsnd_mod_name(struct rsnd_mod *mod); 178 179 /* 180 * R-Car sound DAI 181 */ 182 #define RSND_DAI_NAME_SIZE 16 183 struct rsnd_dai_stream { 184 struct list_head head; /* head of rsnd_mod list */ 185 struct snd_pcm_substream *substream; 186 int byte_pos; 187 int period_pos; 188 int byte_per_period; 189 int next_period_byte; 190 }; 191 192 struct rsnd_dai { 193 char name[RSND_DAI_NAME_SIZE]; 194 struct rsnd_dai_platform_info *info; /* rcar_snd.h */ 195 struct rsnd_dai_stream playback; 196 struct rsnd_dai_stream capture; 197 198 unsigned int clk_master:1; 199 unsigned int bit_clk_inv:1; 200 unsigned int frm_clk_inv:1; 201 unsigned int sys_delay:1; 202 unsigned int data_alignment:1; 203 }; 204 205 #define rsnd_dai_nr(priv) ((priv)->dai_nr) 206 #define for_each_rsnd_dai(rdai, priv, i) \ 207 for (i = 0; \ 208 (i < rsnd_dai_nr(priv)) && \ 209 ((rdai) = rsnd_dai_get(priv, i)); \ 210 i++) 211 212 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id); 213 int rsnd_dai_disconnect(struct rsnd_mod *mod); 214 int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod, 215 struct rsnd_dai_stream *io); 216 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io); 217 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai); 218 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info) 219 #define rsnd_io_to_runtime(io) ((io)->substream->runtime) 220 221 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt); 222 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional); 223 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master) 224 225 /* 226 * R-Car Gen1/Gen2 227 */ 228 int rsnd_gen_probe(struct platform_device *pdev, 229 struct rcar_snd_info *info, 230 struct rsnd_priv *priv); 231 void rsnd_gen_remove(struct platform_device *pdev, 232 struct rsnd_priv *priv); 233 int rsnd_gen_path_init(struct rsnd_priv *priv, 234 struct rsnd_dai *rdai, 235 struct rsnd_dai_stream *io); 236 int rsnd_gen_path_exit(struct rsnd_priv *priv, 237 struct rsnd_dai *rdai, 238 struct rsnd_dai_stream *io); 239 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv, 240 struct rsnd_mod *mod, 241 enum rsnd_reg reg); 242 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1) 243 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2) 244 245 /* 246 * R-Car ADG 247 */ 248 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod); 249 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate); 250 int rsnd_adg_probe(struct platform_device *pdev, 251 struct rcar_snd_info *info, 252 struct rsnd_priv *priv); 253 void rsnd_adg_remove(struct platform_device *pdev, 254 struct rsnd_priv *priv); 255 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv, 256 struct rsnd_mod *mod, 257 unsigned int src_rate, 258 unsigned int dst_rate); 259 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod, 260 struct rsnd_dai *rdai, 261 struct rsnd_dai_stream *io, 262 unsigned int src_rate, 263 unsigned int dst_rate); 264 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod, 265 struct rsnd_dai *rdai, 266 struct rsnd_dai_stream *io); 267 268 /* 269 * R-Car sound priv 270 */ 271 struct rsnd_priv { 272 273 struct device *dev; 274 struct rcar_snd_info *info; 275 spinlock_t lock; 276 277 /* 278 * below value will be filled on rsnd_gen_probe() 279 */ 280 void *gen; 281 282 /* 283 * below value will be filled on rsnd_scu_probe() 284 */ 285 void *scu; 286 int scu_nr; 287 288 /* 289 * below value will be filled on rsnd_adg_probe() 290 */ 291 void *adg; 292 293 /* 294 * below value will be filled on rsnd_ssi_probe() 295 */ 296 void *ssi; 297 int ssi_nr; 298 299 /* 300 * below value will be filled on rsnd_dai_probe() 301 */ 302 struct snd_soc_dai_driver *daidrv; 303 struct rsnd_dai *rdai; 304 int dai_nr; 305 }; 306 307 #define rsnd_priv_to_dev(priv) ((priv)->dev) 308 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags) 309 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags) 310 311 /* 312 * R-Car SCU 313 */ 314 int rsnd_scu_probe(struct platform_device *pdev, 315 struct rcar_snd_info *info, 316 struct rsnd_priv *priv); 317 void rsnd_scu_remove(struct platform_device *pdev, 318 struct rsnd_priv *priv); 319 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id); 320 unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv, 321 struct rsnd_mod *ssi_mod, 322 struct snd_pcm_runtime *runtime); 323 324 #define rsnd_scu_nr(priv) ((priv)->scu_nr) 325 326 /* 327 * R-Car SSI 328 */ 329 int rsnd_ssi_probe(struct platform_device *pdev, 330 struct rcar_snd_info *info, 331 struct rsnd_priv *priv); 332 void rsnd_ssi_remove(struct platform_device *pdev, 333 struct rsnd_priv *priv); 334 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id); 335 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv, 336 int dai_id, int is_play); 337 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod); 338 int rsnd_ssi_is_play(struct rsnd_mod *mod); 339 340 #endif 341