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TOMOYO Linux Cross Reference
Linux/sound/soc/sh/rcar/rsnd.h

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  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         u32 status;
222 };
223 /*
224  * status
225  *
226  * bit
227  * 0    0: probe        1: remove
228  * 1    0: init         1: quit
229  * 2    0: start        1: stop
230  * 3    0: pcm_new
231  * 4    0: fallback
232  */
233 #define __rsnd_mod_shift_probe          0
234 #define __rsnd_mod_shift_remove         0
235 #define __rsnd_mod_shift_init           1
236 #define __rsnd_mod_shift_quit           1
237 #define __rsnd_mod_shift_start          2
238 #define __rsnd_mod_shift_stop           2
239 #define __rsnd_mod_shift_pcm_new        3
240 #define __rsnd_mod_shift_fallback       4
241 
242 #define __rsnd_mod_call_probe           0
243 #define __rsnd_mod_call_remove          1
244 #define __rsnd_mod_call_init            0
245 #define __rsnd_mod_call_quit            1
246 #define __rsnd_mod_call_start           0
247 #define __rsnd_mod_call_stop            1
248 #define __rsnd_mod_call_pcm_new         0
249 #define __rsnd_mod_call_fallback        0
250 
251 #define rsnd_mod_to_priv(mod) ((mod)->priv)
252 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
253 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
254 #define rsnd_mod_to_io(mod) ((mod)->io)
255 #define rsnd_mod_id(mod) ((mod)->id)
256 
257 void rsnd_mod_init(struct rsnd_priv *priv,
258                    struct rsnd_mod *mod,
259                    struct rsnd_mod_ops *ops,
260                    enum rsnd_mod_type type,
261                    int id);
262 char *rsnd_mod_name(struct rsnd_mod *mod);
263 char *rsnd_mod_dma_name(struct rsnd_mod *mod);
264 
265 /*
266  *      R-Car sound DAI
267  */
268 #define RSND_DAI_NAME_SIZE      16
269 struct rsnd_dai_stream {
270         struct snd_pcm_substream *substream;
271         struct rsnd_mod *mod[RSND_MOD_MAX];
272         struct rsnd_dai_path_info *info; /* rcar_snd.h */
273         int byte_pos;
274         int period_pos;
275         int byte_per_period;
276         int next_period_byte;
277 };
278 #define rsnd_io_to_mod_ssi(io)  ((io)->mod[RSND_MOD_SSI])
279 #define rsnd_io_to_mod_src(io)  ((io)->mod[RSND_MOD_SRC])
280 #define rsnd_io_to_mod_dvc(io)  ((io)->mod[RSND_MOD_DVC])
281 
282 struct rsnd_dai {
283         char name[RSND_DAI_NAME_SIZE];
284         struct rsnd_dai_platform_info *info; /* rcar_snd.h */
285         struct rsnd_dai_stream playback;
286         struct rsnd_dai_stream capture;
287 
288         unsigned int clk_master:1;
289         unsigned int bit_clk_inv:1;
290         unsigned int frm_clk_inv:1;
291         unsigned int sys_delay:1;
292         unsigned int data_alignment:1;
293 };
294 
295 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
296 #define for_each_rsnd_dai(rdai, priv, i)                \
297         for (i = 0;                                     \
298              (i < rsnd_rdai_nr(priv)) &&                \
299              ((rdai) = rsnd_dai_get(priv, i));          \
300              i++)
301 
302 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
303 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
304 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
305 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
306 #define rsnd_io_to_runtime(io) ((io)->substream ? \
307                                 (io)->substream->runtime : NULL)
308 
309 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
310 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
311 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
312 
313 /*
314  *      R-Car Gen1/Gen2
315  */
316 int rsnd_gen_probe(struct platform_device *pdev,
317                    const struct rsnd_of_data *of_data,
318                    struct rsnd_priv *priv);
319 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
320                                struct rsnd_mod *mod,
321                                enum rsnd_reg reg);
322 dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv,
323                        struct rsnd_mod *mod,
324                        int is_play,  int is_from);
325 
326 #define rsnd_is_gen1(s)         (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
327 #define rsnd_is_gen2(s)         (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
328 
329 /*
330  *      R-Car ADG
331  */
332 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
333 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
334 int rsnd_adg_probe(struct platform_device *pdev,
335                    const struct rsnd_of_data *of_data,
336                    struct rsnd_priv *priv);
337 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
338                                   struct rsnd_mod *mod,
339                                   unsigned int src_rate,
340                                   unsigned int dst_rate);
341 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
342                                   struct rsnd_dai *rdai,
343                                   struct rsnd_dai_stream *io,
344                                   unsigned int src_rate,
345                                   unsigned int dst_rate);
346 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
347                                      struct rsnd_dai *rdai,
348                                      struct rsnd_dai_stream *io);
349 int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_dai *rdai,
350                                  struct rsnd_mod *mod,
351                                  struct rsnd_dai_stream *io);
352 
353 /*
354  *      R-Car sound priv
355  */
356 struct rsnd_of_data {
357         u32 flags;
358 };
359 
360 struct rsnd_priv {
361 
362         struct platform_device *pdev;
363         struct rcar_snd_info *info;
364         spinlock_t lock;
365 
366         /*
367          * below value will be filled on rsnd_gen_probe()
368          */
369         void *gen;
370 
371         /*
372          * below value will be filled on rsnd_src_probe()
373          */
374         void *src;
375         int src_nr;
376 
377         /*
378          * below value will be filled on rsnd_adg_probe()
379          */
380         void *adg;
381 
382         /*
383          * below value will be filled on rsnd_ssi_probe()
384          */
385         void *ssi;
386         int ssi_nr;
387 
388         /*
389          * below value will be filled on rsnd_dvc_probe()
390          */
391         void *dvc;
392         int dvc_nr;
393 
394         /*
395          * below value will be filled on rsnd_dai_probe()
396          */
397         struct snd_soc_dai_driver *daidrv;
398         struct rsnd_dai *rdai;
399         int rdai_nr;
400 };
401 
402 #define rsnd_priv_to_pdev(priv) ((priv)->pdev)
403 #define rsnd_priv_to_dev(priv)  (&(rsnd_priv_to_pdev(priv)->dev))
404 #define rsnd_priv_to_info(priv) ((priv)->info)
405 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
406 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
407 
408 #define rsnd_info_is_playback(priv, type)                               \
409 ({                                                                      \
410         struct rcar_snd_info *info = rsnd_priv_to_info(priv);           \
411         int i, is_play = 0;                                             \
412         for (i = 0; i < info->dai_info_nr; i++) {                       \
413                 if (info->dai_info[i].playback.type == (type)->info) {  \
414                         is_play = 1;                                    \
415                         break;                                          \
416                 }                                                       \
417         }                                                               \
418         is_play;                                                        \
419 })
420 
421 /*
422  *      rsnd_kctrl
423  */
424 struct rsnd_kctrl_cfg {
425         unsigned int max;
426         unsigned int size;
427         u32 *val;
428         const char * const *texts;
429         void (*update)(struct rsnd_mod *mod);
430 };
431 
432 #define RSND_DVC_CHANNELS       2
433 struct rsnd_kctrl_cfg_m {
434         struct rsnd_kctrl_cfg cfg;
435         u32 val[RSND_DVC_CHANNELS];
436 };
437 
438 struct rsnd_kctrl_cfg_s {
439         struct rsnd_kctrl_cfg cfg;
440         u32 val;
441 };
442 
443 int rsnd_kctrl_new_m(struct rsnd_mod *mod,
444                      struct rsnd_dai *rdai,
445                      struct snd_soc_pcm_runtime *rtd,
446                      const unsigned char *name,
447                      void (*update)(struct rsnd_mod *mod),
448                      struct rsnd_kctrl_cfg_m *_cfg,
449                      u32 max);
450 int rsnd_kctrl_new_s(struct rsnd_mod *mod,
451                      struct rsnd_dai *rdai,
452                      struct snd_soc_pcm_runtime *rtd,
453                      const unsigned char *name,
454                      void (*update)(struct rsnd_mod *mod),
455                      struct rsnd_kctrl_cfg_s *_cfg,
456                      u32 max);
457 int rsnd_kctrl_new_e(struct rsnd_mod *mod,
458                      struct rsnd_dai *rdai,
459                      struct snd_soc_pcm_runtime *rtd,
460                      const unsigned char *name,
461                      struct rsnd_kctrl_cfg_s *_cfg,
462                      void (*update)(struct rsnd_mod *mod),
463                      const char * const *texts,
464                      u32 max);
465 
466 /*
467  *      R-Car SRC
468  */
469 int rsnd_src_probe(struct platform_device *pdev,
470                    const struct rsnd_of_data *of_data,
471                    struct rsnd_priv *priv);
472 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
473 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
474                                    struct rsnd_dai_stream *io,
475                                    struct snd_pcm_runtime *runtime);
476 int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
477                         struct rsnd_dai *rdai,
478                         int use_busif);
479 int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
480                        struct rsnd_dai *rdai);
481 int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod,
482                             struct rsnd_dai *rdai);
483 int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod,
484                              struct rsnd_dai *rdai);
485 
486 #define rsnd_src_nr(priv) ((priv)->src_nr)
487 
488 /*
489  *      R-Car SSI
490  */
491 int rsnd_ssi_probe(struct platform_device *pdev,
492                    const struct rsnd_of_data *of_data,
493                    struct rsnd_priv *priv);
494 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
495 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
496 int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod);
497 
498 /*
499  *      R-Car DVC
500  */
501 int rsnd_dvc_probe(struct platform_device *pdev,
502                    const struct rsnd_of_data *of_data,
503                    struct rsnd_priv *priv);
504 void rsnd_dvc_remove(struct platform_device *pdev,
505                      struct rsnd_priv *priv);
506 struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
507 
508 #define rsnd_dvc_nr(priv) ((priv)->dvc_nr)
509 
510 
511 #endif
512 

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