ASoC: rsnd: SSI + DMA can select BUSIF
[deliverable/linux.git] / 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>
0a4d94c0 16#include <linux/dma-mapping.h>
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17#include <linux/io.h>
18#include <linux/list.h>
19#include <linux/module.h>
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20#include <linux/of_device.h>
21#include <linux/of_irq.h>
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22#include <linux/sh_dma.h>
23#include <linux/workqueue.h>
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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 */
3337744a 35enum rsnd_reg {
507d466c 36 /* SRU/SCU/SSIU */
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37 RSND_REG_SSI_MODE0,
38 RSND_REG_SSI_MODE1,
0290d2a4 39 RSND_REG_SRC_BUSIF_MODE,
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40 RSND_REG_SRC_ROUTE_MODE0,
41 RSND_REG_SRC_SWRSR,
42 RSND_REG_SRC_SRCIR,
690ef81e 43 RSND_REG_SRC_ADINR,
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44 RSND_REG_SRC_IFSCR,
45 RSND_REG_SRC_IFSVR,
46 RSND_REG_SRC_SRCCR,
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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,
07539c1d 56
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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,
dfc9403b 63
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64 /* SSI */
65 RSND_REG_SSICR,
66 RSND_REG_SSISR,
67 RSND_REG_SSITDR,
68 RSND_REG_SSIRDR,
69 RSND_REG_SSIWSR,
70
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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,
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91 RSND_REG_SHARE20,
92 RSND_REG_SHARE21,
c82e1c88 93
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94 RSND_REG_MAX,
95};
96
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97/* Gen1 only */
98#define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01
99#define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02
100#define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03
101#define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04
102#define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05
103#define RSND_REG_SRC_MNFSR RSND_REG_SHARE06
104#define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07
105#define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08
106#define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09
107
108/* Gen2 only */
109#define RSND_REG_SRC_CTRL RSND_REG_SHARE01
110#define RSND_REG_SSI_CTRL RSND_REG_SHARE02
111#define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03
112#define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04
113#define RSND_REG_INT_ENABLE RSND_REG_SHARE05
114#define RSND_REG_SRC_BSDSR RSND_REG_SHARE06
115#define RSND_REG_SRC_BSISR RSND_REG_SHARE07
116#define RSND_REG_DIV_EN RSND_REG_SHARE08
117#define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09
118#define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10
119#define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11
120#define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12
121#define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13
122#define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14
123#define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15
124#define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16
125#define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17
126#define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18
127#define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19
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128#define RSND_REG_CMD_CTRL RSND_REG_SHARE20
129#define RSND_REG_CMDOUT_TIMSEL RSND_REG_SHARE21
c82e1c88 130
90e8e50f 131struct rsnd_of_data;
1536a968 132struct rsnd_priv;
cdaa3cdf 133struct rsnd_mod;
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134struct rsnd_dai;
135struct rsnd_dai_stream;
136
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137/*
138 * R-Car basic functions
139 */
140#define rsnd_mod_read(m, r) \
141 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
142#define rsnd_mod_write(m, r, d) \
143 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
144#define rsnd_mod_bset(m, r, s, d) \
145 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
146
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147u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
148void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
149 enum rsnd_reg reg, u32 data);
150void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
151 u32 mask, u32 data);
d7bdbc5d 152u32 rsnd_get_adinr(struct rsnd_mod *mod);
3337744a 153
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154/*
155 * R-Car DMA
156 */
157struct rsnd_dma {
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158 struct sh_dmae_slave slave;
159 struct work_struct work;
160 struct dma_chan *chan;
cd7bcc60 161 enum dma_transfer_direction dir;
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162
163 int submit_loop;
4686a0ad 164 int offset; /* it cares A/B plane */
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165};
166
167void rsnd_dma_start(struct rsnd_dma *dma);
168void rsnd_dma_stop(struct rsnd_dma *dma);
169int rsnd_dma_available(struct rsnd_dma *dma);
170int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
4686a0ad 171 int is_play, int id);
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172void rsnd_dma_quit(struct rsnd_priv *priv,
173 struct rsnd_dma *dma);
174
175
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176/*
177 * R-Car sound mod
178 */
a126021d 179enum rsnd_mod_type {
ba9c949f 180 RSND_MOD_SRC = 0,
a126021d 181 RSND_MOD_SSI,
bff58ea4 182 RSND_MOD_DVC,
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183 RSND_MOD_MAX,
184};
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185
186struct rsnd_mod_ops {
187 char *name;
d9288d0b 188 char* (*dma_name)(struct rsnd_mod *mod);
7681f6ac 189 int (*probe)(struct rsnd_mod *mod,
b42fccf6 190 struct rsnd_dai *rdai);
7681f6ac 191 int (*remove)(struct rsnd_mod *mod,
b42fccf6 192 struct rsnd_dai *rdai);
cdaa3cdf 193 int (*init)(struct rsnd_mod *mod,
b42fccf6 194 struct rsnd_dai *rdai);
cdaa3cdf 195 int (*quit)(struct rsnd_mod *mod,
b42fccf6 196 struct rsnd_dai *rdai);
cdaa3cdf 197 int (*start)(struct rsnd_mod *mod,
b42fccf6 198 struct rsnd_dai *rdai);
cdaa3cdf 199 int (*stop)(struct rsnd_mod *mod,
b42fccf6 200 struct rsnd_dai *rdai);
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201 int (*pcm_new)(struct rsnd_mod *mod,
202 struct rsnd_dai *rdai,
203 struct snd_soc_pcm_runtime *rtd);
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204};
205
4686a0ad 206struct rsnd_dai_stream;
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207struct rsnd_mod {
208 int id;
a126021d 209 enum rsnd_mod_type type;
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210 struct rsnd_priv *priv;
211 struct rsnd_mod_ops *ops;
0a4d94c0 212 struct rsnd_dma dma;
4686a0ad 213 struct rsnd_dai_stream *io;
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214};
215
216#define rsnd_mod_to_priv(mod) ((mod)->priv)
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217#define rsnd_mod_to_dma(mod) (&(mod)->dma)
218#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
4686a0ad 219#define rsnd_mod_to_io(mod) ((mod)->io)
cdaa3cdf 220#define rsnd_mod_id(mod) ((mod)->id)
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221
222void rsnd_mod_init(struct rsnd_priv *priv,
223 struct rsnd_mod *mod,
224 struct rsnd_mod_ops *ops,
a126021d 225 enum rsnd_mod_type type,
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226 int id);
227char *rsnd_mod_name(struct rsnd_mod *mod);
d9288d0b 228char *rsnd_mod_dma_name(struct rsnd_mod *mod);
cdaa3cdf 229
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230/*
231 * R-Car sound DAI
232 */
233#define RSND_DAI_NAME_SIZE 16
234struct rsnd_dai_stream {
1536a968 235 struct snd_pcm_substream *substream;
a126021d 236 struct rsnd_mod *mod[RSND_MOD_MAX];
389933d9 237 struct rsnd_dai_path_info *info; /* rcar_snd.h */
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238 int byte_pos;
239 int period_pos;
240 int byte_per_period;
241 int next_period_byte;
242};
374e5426 243#define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI])
ba9c949f 244#define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC])
bff58ea4 245#define rsnd_io_to_mod_dvc(io) ((io)->mod[RSND_MOD_DVC])
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246
247struct rsnd_dai {
248 char name[RSND_DAI_NAME_SIZE];
249 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
250 struct rsnd_dai_stream playback;
251 struct rsnd_dai_stream capture;
252
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253 unsigned int clk_master:1;
254 unsigned int bit_clk_inv:1;
255 unsigned int frm_clk_inv:1;
256 unsigned int sys_delay:1;
257 unsigned int data_alignment:1;
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258};
259
ecba9e72 260#define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
1536a968 261#define for_each_rsnd_dai(rdai, priv, i) \
00463c11 262 for (i = 0; \
ecba9e72 263 (i < rsnd_rdai_nr(priv)) && \
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264 ((rdai) = rsnd_dai_get(priv, i)); \
265 i++)
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266
267struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
268int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
4b4dab82 269int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
1536a968 270#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
ae5c3223 271#define rsnd_io_to_runtime(io) ((io)->substream->runtime)
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272
273void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
274int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
e779a20d 275#define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
1536a968 276
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277/*
278 * R-Car Gen1/Gen2
279 */
280int rsnd_gen_probe(struct platform_device *pdev,
90e8e50f 281 const struct rsnd_of_data *of_data,
3337744a 282 struct rsnd_priv *priv);
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283void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
284 struct rsnd_mod *mod,
285 enum rsnd_reg reg);
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286void rsnd_gen_dma_addr(struct rsnd_priv *priv,
287 struct rsnd_dma *dma,
288 struct dma_slave_config *cfg,
289 int is_play, int slave_id);
290
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291#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
292#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
3337744a 293
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294/*
295 * R-Car ADG
296 */
297int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
298int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
299int rsnd_adg_probe(struct platform_device *pdev,
90e8e50f 300 const struct rsnd_of_data *of_data,
dfc9403b 301 struct rsnd_priv *priv);
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302int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
303 struct rsnd_mod *mod,
304 unsigned int src_rate,
305 unsigned int dst_rate);
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306int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
307 struct rsnd_dai *rdai,
308 struct rsnd_dai_stream *io,
309 unsigned int src_rate,
310 unsigned int dst_rate);
311int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
312 struct rsnd_dai *rdai,
313 struct rsnd_dai_stream *io);
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314int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_dai *rdai,
315 struct rsnd_mod *mod,
316 struct rsnd_dai_stream *io);
dfc9403b 317
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318/*
319 * R-Car sound priv
320 */
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321struct rsnd_of_data {
322 u32 flags;
323};
324
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325struct rsnd_priv {
326
9f464f8e 327 struct platform_device *pdev;
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328 struct rcar_snd_info *info;
329 spinlock_t lock;
330
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331 /*
332 * below value will be filled on rsnd_gen_probe()
333 */
334 void *gen;
335
07539c1d 336 /*
ba9c949f 337 * below value will be filled on rsnd_src_probe()
07539c1d 338 */
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339 void *src;
340 int src_nr;
07539c1d 341
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342 /*
343 * below value will be filled on rsnd_adg_probe()
344 */
345 void *adg;
346
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347 /*
348 * below value will be filled on rsnd_ssi_probe()
349 */
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350 void *ssi;
351 int ssi_nr;
ae5c3223 352
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353 /*
354 * below value will be filled on rsnd_dvc_probe()
355 */
356 void *dvc;
357 int dvc_nr;
358
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359 /*
360 * below value will be filled on rsnd_dai_probe()
361 */
362 struct snd_soc_dai_driver *daidrv;
363 struct rsnd_dai *rdai;
ecba9e72 364 int rdai_nr;
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365};
366
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367#define rsnd_priv_to_pdev(priv) ((priv)->pdev)
368#define rsnd_priv_to_dev(priv) (&(rsnd_priv_to_pdev(priv)->dev))
5da39cf3 369#define rsnd_priv_to_info(priv) ((priv)->info)
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370#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
371#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
372
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373#define rsnd_info_is_playback(priv, type) \
374({ \
375 struct rcar_snd_info *info = rsnd_priv_to_info(priv); \
376 int i, is_play = 0; \
377 for (i = 0; i < info->dai_info_nr; i++) { \
378 if (info->dai_info[i].playback.type == (type)->info) { \
379 is_play = 1; \
380 break; \
381 } \
382 } \
383 is_play; \
384})
385
07539c1d 386/*
ba9c949f 387 * R-Car SRC
07539c1d 388 */
ba9c949f 389int rsnd_src_probe(struct platform_device *pdev,
90e8e50f 390 const struct rsnd_of_data *of_data,
07539c1d 391 struct rsnd_priv *priv);
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392struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
393unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
374e5426 394 struct rsnd_dai_stream *io,
ef749400 395 struct snd_pcm_runtime *runtime);
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396int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
397 struct rsnd_dai *rdai,
398 int use_busif);
399int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
400 struct rsnd_dai *rdai,
401 int use_busif);
ba9c949f 402int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
b42fccf6 403 struct rsnd_dai *rdai);
ef749400 404
ba9c949f 405#define rsnd_src_nr(priv) ((priv)->src_nr)
07539c1d 406
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407/*
408 * R-Car SSI
409 */
410int rsnd_ssi_probe(struct platform_device *pdev,
90e8e50f 411 const struct rsnd_of_data *of_data,
ae5c3223 412 struct rsnd_priv *priv);
ae5c3223 413struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
7b5ce975 414int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
ae5c3223 415
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416/*
417 * R-Car DVC
418 */
419int rsnd_dvc_probe(struct platform_device *pdev,
420 const struct rsnd_of_data *of_data,
421 struct rsnd_priv *priv);
422void rsnd_dvc_remove(struct platform_device *pdev,
423 struct rsnd_priv *priv);
424struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
425
426#define rsnd_dvc_nr(priv) ((priv)->dvc_nr)
427
428
1536a968 429#endif
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