ASoC: rsnd: use device dependency clock
[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/sh_dma.h>
21#include <linux/workqueue.h>
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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 */
3337744a 33enum rsnd_reg {
507d466c 34 /* SRU/SCU/SSIU */
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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 */
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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 */
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45 RSND_REG_SSI_MODE0,
46 RSND_REG_SSI_MODE1,
52ea2a79 47 RSND_REG_INT_ENABLE, /* for Gen2 */
0290d2a4 48 RSND_REG_SRC_BUSIF_MODE,
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49 RSND_REG_SRC_ROUTE_MODE0,
50 RSND_REG_SRC_SWRSR,
51 RSND_REG_SRC_SRCIR,
690ef81e 52 RSND_REG_SRC_ADINR,
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53 RSND_REG_SRC_IFSCR,
54 RSND_REG_SRC_IFSVR,
55 RSND_REG_SRC_SRCCR,
1b7b08ef 56 RSND_REG_SRC_MNFSR, /* for Gen1 */
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57 RSND_REG_SRC_BSDSR, /* for Gen2 */
58 RSND_REG_SRC_BSISR, /* for Gen2 */
07539c1d 59
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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,
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67 RSND_REG_AUDIO_CLK_SEL3, /* for Gen1 */
68 RSND_REG_AUDIO_CLK_SEL4, /* for Gen1 */
69 RSND_REG_AUDIO_CLK_SEL5, /* for Gen1 */
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70 RSND_REG_SRCIN_TIMSEL0, /* for Gen2 */
71 RSND_REG_SRCIN_TIMSEL1, /* for Gen2 */
72 RSND_REG_SRCIN_TIMSEL2, /* for Gen2 */
73 RSND_REG_SRCIN_TIMSEL3, /* for Gen2 */
74 RSND_REG_SRCIN_TIMSEL4, /* for Gen2 */
75 RSND_REG_SRCOUT_TIMSEL0, /* for Gen2 */
76 RSND_REG_SRCOUT_TIMSEL1, /* for Gen2 */
77 RSND_REG_SRCOUT_TIMSEL2, /* for Gen2 */
78 RSND_REG_SRCOUT_TIMSEL3, /* for Gen2 */
79 RSND_REG_SRCOUT_TIMSEL4, /* for Gen2 */
dfc9403b 80
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81 /* SSI */
82 RSND_REG_SSICR,
83 RSND_REG_SSISR,
84 RSND_REG_SSITDR,
85 RSND_REG_SSIRDR,
86 RSND_REG_SSIWSR,
87
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88 RSND_REG_MAX,
89};
90
1536a968 91struct rsnd_priv;
cdaa3cdf 92struct rsnd_mod;
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93struct rsnd_dai;
94struct rsnd_dai_stream;
95
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96/*
97 * R-Car basic functions
98 */
99#define rsnd_mod_read(m, r) \
100 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
101#define rsnd_mod_write(m, r, d) \
102 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
103#define rsnd_mod_bset(m, r, s, d) \
104 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
105
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106u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
107void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
108 enum rsnd_reg reg, u32 data);
109void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
110 u32 mask, u32 data);
111
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112/*
113 * R-Car DMA
114 */
115struct rsnd_dma {
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116 struct sh_dmae_slave slave;
117 struct work_struct work;
118 struct dma_chan *chan;
119 enum dma_data_direction dir;
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120
121 int submit_loop;
4686a0ad 122 int offset; /* it cares A/B plane */
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123};
124
125void rsnd_dma_start(struct rsnd_dma *dma);
126void rsnd_dma_stop(struct rsnd_dma *dma);
127int rsnd_dma_available(struct rsnd_dma *dma);
128int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
4686a0ad 129 int is_play, int id);
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130void rsnd_dma_quit(struct rsnd_priv *priv,
131 struct rsnd_dma *dma);
132
133
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134/*
135 * R-Car sound mod
136 */
137
138struct rsnd_mod_ops {
139 char *name;
140 int (*init)(struct rsnd_mod *mod,
141 struct rsnd_dai *rdai,
142 struct rsnd_dai_stream *io);
143 int (*quit)(struct rsnd_mod *mod,
144 struct rsnd_dai *rdai,
145 struct rsnd_dai_stream *io);
146 int (*start)(struct rsnd_mod *mod,
147 struct rsnd_dai *rdai,
148 struct rsnd_dai_stream *io);
149 int (*stop)(struct rsnd_mod *mod,
150 struct rsnd_dai *rdai,
151 struct rsnd_dai_stream *io);
152};
153
4686a0ad 154struct rsnd_dai_stream;
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155struct rsnd_mod {
156 int id;
157 struct rsnd_priv *priv;
158 struct rsnd_mod_ops *ops;
159 struct list_head list; /* connect to rsnd_dai playback/capture */
0a4d94c0 160 struct rsnd_dma dma;
4686a0ad 161 struct rsnd_dai_stream *io;
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162};
163
164#define rsnd_mod_to_priv(mod) ((mod)->priv)
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165#define rsnd_mod_to_dma(mod) (&(mod)->dma)
166#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
4686a0ad 167#define rsnd_mod_to_io(mod) ((mod)->io)
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168#define rsnd_mod_id(mod) ((mod)->id)
169#define for_each_rsnd_mod(pos, n, io) \
170 list_for_each_entry_safe(pos, n, &(io)->head, list)
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171#define __rsnd_mod_call(mod, func, rdai, io) \
172({ \
173 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
174 struct device *dev = rsnd_priv_to_dev(priv); \
175 dev_dbg(dev, "%s-%d-%s\n", \
176 rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
177 (mod)->ops->func(mod, rdai, io); \
178})
179
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180#define rsnd_mod_call(mod, func, rdai, io) \
181 (!(mod) ? -ENODEV : \
182 !((mod)->ops->func) ? 0 : \
92d9587e 183 __rsnd_mod_call(mod, func, rdai, io))
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184
185void rsnd_mod_init(struct rsnd_priv *priv,
186 struct rsnd_mod *mod,
187 struct rsnd_mod_ops *ops,
188 int id);
189char *rsnd_mod_name(struct rsnd_mod *mod);
190
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191/*
192 * R-Car sound DAI
193 */
194#define RSND_DAI_NAME_SIZE 16
195struct rsnd_dai_stream {
196 struct list_head head; /* head of rsnd_mod list */
197 struct snd_pcm_substream *substream;
198 int byte_pos;
199 int period_pos;
200 int byte_per_period;
201 int next_period_byte;
202};
203
204struct rsnd_dai {
205 char name[RSND_DAI_NAME_SIZE];
206 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
207 struct rsnd_dai_stream playback;
208 struct rsnd_dai_stream capture;
209
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210 unsigned int clk_master:1;
211 unsigned int bit_clk_inv:1;
212 unsigned int frm_clk_inv:1;
213 unsigned int sys_delay:1;
214 unsigned int data_alignment:1;
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215};
216
217#define rsnd_dai_nr(priv) ((priv)->dai_nr)
218#define for_each_rsnd_dai(rdai, priv, i) \
219 for (i = 0, (rdai) = rsnd_dai_get(priv, i); \
220 i < rsnd_dai_nr(priv); \
221 i++, (rdai) = rsnd_dai_get(priv, i))
222
223struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
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224int rsnd_dai_disconnect(struct rsnd_mod *mod);
225int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod,
226 struct rsnd_dai_stream *io);
1536a968 227int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
4b4dab82 228int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
1536a968 229#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
ae5c3223 230#define rsnd_io_to_runtime(io) ((io)->substream->runtime)
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231
232void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
233int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
e779a20d 234#define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
1536a968 235
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236/*
237 * R-Car Gen1/Gen2
238 */
239int rsnd_gen_probe(struct platform_device *pdev,
240 struct rcar_snd_info *info,
241 struct rsnd_priv *priv);
242void rsnd_gen_remove(struct platform_device *pdev,
243 struct rsnd_priv *priv);
244int rsnd_gen_path_init(struct rsnd_priv *priv,
245 struct rsnd_dai *rdai,
246 struct rsnd_dai_stream *io);
247int rsnd_gen_path_exit(struct rsnd_priv *priv,
248 struct rsnd_dai *rdai,
249 struct rsnd_dai_stream *io);
250void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
251 struct rsnd_mod *mod,
252 enum rsnd_reg reg);
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253#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
254#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
3337744a 255
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256/*
257 * R-Car ADG
258 */
259int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
260int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
261int rsnd_adg_probe(struct platform_device *pdev,
262 struct rcar_snd_info *info,
263 struct rsnd_priv *priv);
264void rsnd_adg_remove(struct platform_device *pdev,
265 struct rsnd_priv *priv);
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266int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
267 struct rsnd_mod *mod,
268 unsigned int src_rate,
269 unsigned int dst_rate);
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270int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
271 struct rsnd_dai *rdai,
272 struct rsnd_dai_stream *io,
273 unsigned int src_rate,
274 unsigned int dst_rate);
275int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
276 struct rsnd_dai *rdai,
277 struct rsnd_dai_stream *io);
dfc9403b 278
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279/*
280 * R-Car sound priv
281 */
282struct rsnd_priv {
283
284 struct device *dev;
285 struct rcar_snd_info *info;
286 spinlock_t lock;
287
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288 /*
289 * below value will be filled on rsnd_gen_probe()
290 */
291 void *gen;
292
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293 /*
294 * below value will be filled on rsnd_scu_probe()
295 */
296 void *scu;
297 int scu_nr;
298
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299 /*
300 * below value will be filled on rsnd_adg_probe()
301 */
302 void *adg;
303
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304 /*
305 * below value will be filled on rsnd_ssi_probe()
306 */
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307 void *ssi;
308 int ssi_nr;
ae5c3223 309
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310 /*
311 * below value will be filled on rsnd_dai_probe()
312 */
313 struct snd_soc_dai_driver *daidrv;
314 struct rsnd_dai *rdai;
315 int dai_nr;
316};
317
318#define rsnd_priv_to_dev(priv) ((priv)->dev)
319#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
320#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
321
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322/*
323 * R-Car SCU
324 */
325int rsnd_scu_probe(struct platform_device *pdev,
326 struct rcar_snd_info *info,
327 struct rsnd_priv *priv);
328void rsnd_scu_remove(struct platform_device *pdev,
329 struct rsnd_priv *priv);
330struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
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331unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
332 struct rsnd_mod *ssi_mod,
333 struct snd_pcm_runtime *runtime);
334
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335#define rsnd_scu_nr(priv) ((priv)->scu_nr)
336
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337/*
338 * R-Car SSI
339 */
340int rsnd_ssi_probe(struct platform_device *pdev,
341 struct rcar_snd_info *info,
342 struct rsnd_priv *priv);
343void rsnd_ssi_remove(struct platform_device *pdev,
344 struct rsnd_priv *priv);
345struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
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346struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
347 int dai_id, int is_play);
7b5ce975 348int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
32f27ebf 349int rsnd_ssi_is_play(struct rsnd_mod *mod);
ae5c3223 350
1536a968 351#endif
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