ASoC: rsnd: share reg_field and reduce memory
[platform/adaptation/renesas_rcar/renesas_kernel.git] / 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/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_SSI_MODE0,
36         RSND_REG_SSI_MODE1,
37         RSND_REG_SRC_BUSIF_MODE,
38         RSND_REG_SRC_ROUTE_MODE0,
39         RSND_REG_SRC_SWRSR,
40         RSND_REG_SRC_SRCIR,
41         RSND_REG_SRC_ADINR,
42         RSND_REG_SRC_IFSCR,
43         RSND_REG_SRC_IFSVR,
44         RSND_REG_SRC_SRCCR,
45
46         /* ADG */
47         RSND_REG_BRRA,
48         RSND_REG_BRRB,
49         RSND_REG_SSICKR,
50         RSND_REG_AUDIO_CLK_SEL0,
51         RSND_REG_AUDIO_CLK_SEL1,
52
53         /* SSI */
54         RSND_REG_SSICR,
55         RSND_REG_SSISR,
56         RSND_REG_SSITDR,
57         RSND_REG_SSIRDR,
58         RSND_REG_SSIWSR,
59
60         /* SHARE see below */
61         RSND_REG_SHARE01,
62         RSND_REG_SHARE02,
63         RSND_REG_SHARE03,
64         RSND_REG_SHARE04,
65         RSND_REG_SHARE05,
66         RSND_REG_SHARE06,
67         RSND_REG_SHARE07,
68         RSND_REG_SHARE08,
69         RSND_REG_SHARE09,
70         RSND_REG_SHARE10,
71         RSND_REG_SHARE11,
72         RSND_REG_SHARE12,
73         RSND_REG_SHARE13,
74         RSND_REG_SHARE14,
75         RSND_REG_SHARE15,
76         RSND_REG_SHARE16,
77         RSND_REG_SHARE17,
78         RSND_REG_SHARE18,
79         RSND_REG_SHARE19,
80
81         RSND_REG_MAX,
82 };
83
84 /* Gen1 only */
85 #define RSND_REG_SRC_ROUTE_SEL          RSND_REG_SHARE01
86 #define RSND_REG_SRC_TMG_SEL0           RSND_REG_SHARE02
87 #define RSND_REG_SRC_TMG_SEL1           RSND_REG_SHARE03
88 #define RSND_REG_SRC_TMG_SEL2           RSND_REG_SHARE04
89 #define RSND_REG_SRC_ROUTE_CTRL         RSND_REG_SHARE05
90 #define RSND_REG_SRC_MNFSR              RSND_REG_SHARE06
91 #define RSND_REG_AUDIO_CLK_SEL3         RSND_REG_SHARE07
92 #define RSND_REG_AUDIO_CLK_SEL4         RSND_REG_SHARE08
93 #define RSND_REG_AUDIO_CLK_SEL5         RSND_REG_SHARE09
94
95 /* Gen2 only */
96 #define RSND_REG_SRC_CTRL               RSND_REG_SHARE01
97 #define RSND_REG_SSI_CTRL               RSND_REG_SHARE02
98 #define RSND_REG_SSI_BUSIF_MODE         RSND_REG_SHARE03
99 #define RSND_REG_SSI_BUSIF_ADINR        RSND_REG_SHARE04
100 #define RSND_REG_INT_ENABLE             RSND_REG_SHARE05
101 #define RSND_REG_SRC_BSDSR              RSND_REG_SHARE06
102 #define RSND_REG_SRC_BSISR              RSND_REG_SHARE07
103 #define RSND_REG_DIV_EN                 RSND_REG_SHARE08
104 #define RSND_REG_SRCIN_TIMSEL0          RSND_REG_SHARE09
105 #define RSND_REG_SRCIN_TIMSEL1          RSND_REG_SHARE10
106 #define RSND_REG_SRCIN_TIMSEL2          RSND_REG_SHARE11
107 #define RSND_REG_SRCIN_TIMSEL3          RSND_REG_SHARE12
108 #define RSND_REG_SRCIN_TIMSEL4          RSND_REG_SHARE13
109 #define RSND_REG_SRCOUT_TIMSEL0         RSND_REG_SHARE14
110 #define RSND_REG_SRCOUT_TIMSEL1         RSND_REG_SHARE15
111 #define RSND_REG_SRCOUT_TIMSEL2         RSND_REG_SHARE16
112 #define RSND_REG_SRCOUT_TIMSEL3         RSND_REG_SHARE17
113 #define RSND_REG_SRCOUT_TIMSEL4         RSND_REG_SHARE18
114 #define RSND_REG_AUDIO_CLK_SEL2         RSND_REG_SHARE19
115
116 struct rsnd_priv;
117 struct rsnd_mod;
118 struct rsnd_dai;
119 struct rsnd_dai_stream;
120
121 /*
122  *      R-Car basic functions
123  */
124 #define rsnd_mod_read(m, r) \
125         rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
126 #define rsnd_mod_write(m, r, d) \
127         rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
128 #define rsnd_mod_bset(m, r, s, d) \
129         rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
130
131 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
132 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
133                 enum rsnd_reg reg, u32 data);
134 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
135                     u32 mask, u32 data);
136
137 /*
138  *      R-Car DMA
139  */
140 struct rsnd_dma {
141         struct sh_dmae_slave    slave;
142         struct work_struct      work;
143         struct dma_chan         *chan;
144         enum dma_data_direction dir;
145
146         int submit_loop;
147         int offset; /* it cares A/B plane */
148 };
149
150 void rsnd_dma_start(struct rsnd_dma *dma);
151 void rsnd_dma_stop(struct rsnd_dma *dma);
152 int rsnd_dma_available(struct rsnd_dma *dma);
153 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
154         int is_play, int id);
155 void  rsnd_dma_quit(struct rsnd_priv *priv,
156                     struct rsnd_dma *dma);
157
158
159 /*
160  *      R-Car sound mod
161  */
162 enum rsnd_mod_type {
163         RSND_MOD_SCU = 0,
164         RSND_MOD_SSI,
165         RSND_MOD_MAX,
166 };
167
168 struct rsnd_mod_ops {
169         char *name;
170         int (*init)(struct rsnd_mod *mod,
171                     struct rsnd_dai *rdai,
172                     struct rsnd_dai_stream *io);
173         int (*quit)(struct rsnd_mod *mod,
174                     struct rsnd_dai *rdai,
175                     struct rsnd_dai_stream *io);
176         int (*start)(struct rsnd_mod *mod,
177                      struct rsnd_dai *rdai,
178                      struct rsnd_dai_stream *io);
179         int (*stop)(struct rsnd_mod *mod,
180                     struct rsnd_dai *rdai,
181                     struct rsnd_dai_stream *io);
182 };
183
184 struct rsnd_dai_stream;
185 struct rsnd_mod {
186         int id;
187         enum rsnd_mod_type type;
188         struct rsnd_priv *priv;
189         struct rsnd_mod_ops *ops;
190         struct rsnd_dma dma;
191         struct rsnd_dai_stream *io;
192 };
193
194 #define rsnd_mod_to_priv(mod) ((mod)->priv)
195 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
196 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
197 #define rsnd_mod_to_io(mod) ((mod)->io)
198 #define rsnd_mod_id(mod) ((mod)->id)
199
200 void rsnd_mod_init(struct rsnd_priv *priv,
201                    struct rsnd_mod *mod,
202                    struct rsnd_mod_ops *ops,
203                    enum rsnd_mod_type type,
204                    int id);
205 char *rsnd_mod_name(struct rsnd_mod *mod);
206
207 /*
208  *      R-Car sound DAI
209  */
210 #define RSND_DAI_NAME_SIZE      16
211 struct rsnd_dai_stream {
212         struct snd_pcm_substream *substream;
213         struct rsnd_mod *mod[RSND_MOD_MAX];
214         int byte_pos;
215         int period_pos;
216         int byte_per_period;
217         int next_period_byte;
218 };
219 #define rsnd_io_to_mod_ssi(io)  ((io)->mod[RSND_MOD_SSI])
220 #define rsnd_io_to_mod_scu(io)  ((io)->mod[RSND_MOD_SCU])
221
222 struct rsnd_dai {
223         char name[RSND_DAI_NAME_SIZE];
224         struct rsnd_dai_platform_info *info; /* rcar_snd.h */
225         struct rsnd_dai_stream playback;
226         struct rsnd_dai_stream capture;
227
228         unsigned int clk_master:1;
229         unsigned int bit_clk_inv:1;
230         unsigned int frm_clk_inv:1;
231         unsigned int sys_delay:1;
232         unsigned int data_alignment:1;
233 };
234
235 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
236 #define for_each_rsnd_dai(rdai, priv, i)                \
237         for (i = 0;                                     \
238              (i < rsnd_rdai_nr(priv)) &&                \
239              ((rdai) = rsnd_dai_get(priv, i));          \
240              i++)
241
242 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
243 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
244 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
245 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
246 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
247
248 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
249 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
250 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
251
252 /*
253  *      R-Car Gen1/Gen2
254  */
255 int rsnd_gen_probe(struct platform_device *pdev,
256                    struct rsnd_priv *priv);
257 void rsnd_gen_remove(struct platform_device *pdev,
258                      struct rsnd_priv *priv);
259 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
260                                struct rsnd_mod *mod,
261                                enum rsnd_reg reg);
262 #define rsnd_is_gen1(s)         (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
263 #define rsnd_is_gen2(s)         (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
264
265 /*
266  *      R-Car ADG
267  */
268 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
269 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
270 int rsnd_adg_probe(struct platform_device *pdev,
271                    struct rsnd_priv *priv);
272 void rsnd_adg_remove(struct platform_device *pdev,
273                    struct rsnd_priv *priv);
274 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
275                                   struct rsnd_mod *mod,
276                                   unsigned int src_rate,
277                                   unsigned int dst_rate);
278 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
279                                   struct rsnd_dai *rdai,
280                                   struct rsnd_dai_stream *io,
281                                   unsigned int src_rate,
282                                   unsigned int dst_rate);
283 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
284                                      struct rsnd_dai *rdai,
285                                      struct rsnd_dai_stream *io);
286
287 /*
288  *      R-Car sound priv
289  */
290 struct rsnd_priv {
291
292         struct device *dev;
293         struct rcar_snd_info *info;
294         spinlock_t lock;
295
296         /*
297          * below value will be filled on rsnd_gen_probe()
298          */
299         void *gen;
300
301         /*
302          * below value will be filled on rsnd_scu_probe()
303          */
304         void *scu;
305         int scu_nr;
306
307         /*
308          * below value will be filled on rsnd_adg_probe()
309          */
310         void *adg;
311
312         /*
313          * below value will be filled on rsnd_ssi_probe()
314          */
315         void *ssi;
316         int ssi_nr;
317
318         /*
319          * below value will be filled on rsnd_dai_probe()
320          */
321         struct snd_soc_dai_driver *daidrv;
322         struct rsnd_dai *rdai;
323         int rdai_nr;
324 };
325
326 #define rsnd_priv_to_dev(priv)  ((priv)->dev)
327 #define rsnd_priv_to_info(priv) ((priv)->info)
328 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
329 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
330
331 /*
332  *      R-Car SCU
333  */
334 int rsnd_scu_probe(struct platform_device *pdev,
335                    struct rsnd_priv *priv);
336 void rsnd_scu_remove(struct platform_device *pdev,
337                      struct rsnd_priv *priv);
338 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
339 unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
340                                    struct rsnd_dai_stream *io,
341                                    struct snd_pcm_runtime *runtime);
342
343 #define rsnd_scu_nr(priv) ((priv)->scu_nr)
344
345 /*
346  *      R-Car SSI
347  */
348 int rsnd_ssi_probe(struct platform_device *pdev,
349                    struct rsnd_priv *priv);
350 void rsnd_ssi_remove(struct platform_device *pdev,
351                    struct rsnd_priv *priv);
352 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
353 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
354                                           int dai_id, int is_play);
355 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
356 int rsnd_ssi_is_play(struct rsnd_mod *mod);
357
358 #endif