4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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.
14 #include <linux/clk.h>
15 #include <linux/device.h>
16 #include <linux/dma-mapping.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>
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
39 RSND_REG_SRC_BUSIF_MODE,
40 RSND_REG_SRC_ROUTE_MODE0,
47 RSND_REG_CMD_ROUTE_SLCT,
61 RSND_REG_AUDIO_CLK_SEL0,
62 RSND_REG_AUDIO_CLK_SEL1,
99 #define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01
100 #define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02
101 #define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03
102 #define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04
103 #define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05
104 #define RSND_REG_SRC_MNFSR RSND_REG_SHARE06
105 #define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07
106 #define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08
107 #define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09
110 #define RSND_REG_SRC_CTRL RSND_REG_SHARE01
111 #define RSND_REG_SSI_CTRL RSND_REG_SHARE02
112 #define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03
113 #define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04
114 #define RSND_REG_INT_ENABLE RSND_REG_SHARE05
115 #define RSND_REG_SRC_BSDSR RSND_REG_SHARE06
116 #define RSND_REG_SRC_BSISR RSND_REG_SHARE07
117 #define RSND_REG_DIV_EN RSND_REG_SHARE08
118 #define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09
119 #define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10
120 #define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11
121 #define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12
122 #define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13
123 #define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14
124 #define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15
125 #define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16
126 #define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17
127 #define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18
128 #define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19
129 #define RSND_REG_CMD_CTRL RSND_REG_SHARE20
130 #define RSND_REG_CMDOUT_TIMSEL RSND_REG_SHARE21
131 #define RSND_REG_BUSIF_DALIGN RSND_REG_SHARE22
137 struct rsnd_dai_stream;
140 * R-Car basic functions
142 #define rsnd_mod_read(m, r) \
143 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
144 #define rsnd_mod_write(m, r, d) \
145 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
146 #define rsnd_mod_bset(m, r, s, d) \
147 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
149 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
150 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
151 enum rsnd_reg reg, u32 data);
152 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
154 u32 rsnd_get_adinr(struct rsnd_mod *mod);
160 struct sh_dmae_slave slave;
161 struct dma_chan *chan;
162 enum dma_transfer_direction dir;
166 void rsnd_dma_start(struct rsnd_dma *dma);
167 void rsnd_dma_stop(struct rsnd_dma *dma);
168 int rsnd_dma_available(struct rsnd_dma *dma);
169 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
170 int is_play, int id);
171 void rsnd_dma_quit(struct rsnd_priv *priv,
172 struct rsnd_dma *dma);
185 struct rsnd_mod_ops {
187 char* (*dma_name)(struct rsnd_mod *mod);
188 int (*probe)(struct rsnd_mod *mod,
189 struct rsnd_dai *rdai);
190 int (*remove)(struct rsnd_mod *mod,
191 struct rsnd_dai *rdai);
192 int (*init)(struct rsnd_mod *mod,
193 struct rsnd_dai *rdai);
194 int (*quit)(struct rsnd_mod *mod,
195 struct rsnd_dai *rdai);
196 int (*start)(struct rsnd_mod *mod,
197 struct rsnd_dai *rdai);
198 int (*stop)(struct rsnd_mod *mod,
199 struct rsnd_dai *rdai);
200 int (*pcm_new)(struct rsnd_mod *mod,
201 struct rsnd_dai *rdai,
202 struct snd_soc_pcm_runtime *rtd);
205 struct rsnd_dai_stream;
208 enum rsnd_mod_type type;
209 struct rsnd_priv *priv;
210 struct rsnd_mod_ops *ops;
212 struct rsnd_dai_stream *io;
215 #define rsnd_mod_to_priv(mod) ((mod)->priv)
216 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
217 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
218 #define rsnd_mod_to_io(mod) ((mod)->io)
219 #define rsnd_mod_id(mod) ((mod)->id)
221 void rsnd_mod_init(struct rsnd_priv *priv,
222 struct rsnd_mod *mod,
223 struct rsnd_mod_ops *ops,
224 enum rsnd_mod_type type,
226 char *rsnd_mod_name(struct rsnd_mod *mod);
227 char *rsnd_mod_dma_name(struct rsnd_mod *mod);
232 #define RSND_DAI_NAME_SIZE 16
233 struct rsnd_dai_stream {
234 struct snd_pcm_substream *substream;
235 struct rsnd_mod *mod[RSND_MOD_MAX];
236 struct rsnd_dai_path_info *info; /* rcar_snd.h */
240 int next_period_byte;
242 #define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI])
243 #define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC])
244 #define rsnd_io_to_mod_dvc(io) ((io)->mod[RSND_MOD_DVC])
247 char name[RSND_DAI_NAME_SIZE];
248 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
249 struct rsnd_dai_stream playback;
250 struct rsnd_dai_stream capture;
252 unsigned int clk_master:1;
253 unsigned int bit_clk_inv:1;
254 unsigned int frm_clk_inv:1;
255 unsigned int sys_delay:1;
256 unsigned int data_alignment:1;
259 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
260 #define for_each_rsnd_dai(rdai, priv, i) \
262 (i < rsnd_rdai_nr(priv)) && \
263 ((rdai) = rsnd_dai_get(priv, i)); \
266 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
267 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
268 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
269 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
270 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
272 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
273 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
274 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
279 int rsnd_gen_probe(struct platform_device *pdev,
280 const struct rsnd_of_data *of_data,
281 struct rsnd_priv *priv);
282 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
283 struct rsnd_mod *mod,
285 dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv,
286 struct rsnd_mod *mod,
287 int is_play, int is_from);
289 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
290 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
295 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
296 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
297 int rsnd_adg_probe(struct platform_device *pdev,
298 const struct rsnd_of_data *of_data,
299 struct rsnd_priv *priv);
300 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
301 struct rsnd_mod *mod,
302 unsigned int src_rate,
303 unsigned int dst_rate);
304 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
305 struct rsnd_dai *rdai,
306 struct rsnd_dai_stream *io,
307 unsigned int src_rate,
308 unsigned int dst_rate);
309 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
310 struct rsnd_dai *rdai,
311 struct rsnd_dai_stream *io);
312 int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_dai *rdai,
313 struct rsnd_mod *mod,
314 struct rsnd_dai_stream *io);
319 struct rsnd_of_data {
325 struct platform_device *pdev;
326 struct rcar_snd_info *info;
330 * below value will be filled on rsnd_gen_probe()
335 * below value will be filled on rsnd_src_probe()
341 * below value will be filled on rsnd_adg_probe()
346 * below value will be filled on rsnd_ssi_probe()
352 * below value will be filled on rsnd_dvc_probe()
358 * below value will be filled on rsnd_dai_probe()
360 struct snd_soc_dai_driver *daidrv;
361 struct rsnd_dai *rdai;
365 #define rsnd_priv_to_pdev(priv) ((priv)->pdev)
366 #define rsnd_priv_to_dev(priv) (&(rsnd_priv_to_pdev(priv)->dev))
367 #define rsnd_priv_to_info(priv) ((priv)->info)
368 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
369 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
371 #define rsnd_info_is_playback(priv, type) \
373 struct rcar_snd_info *info = rsnd_priv_to_info(priv); \
374 int i, is_play = 0; \
375 for (i = 0; i < info->dai_info_nr; i++) { \
376 if (info->dai_info[i].playback.type == (type)->info) { \
387 int rsnd_src_probe(struct platform_device *pdev,
388 const struct rsnd_of_data *of_data,
389 struct rsnd_priv *priv);
390 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
391 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
392 struct rsnd_dai_stream *io,
393 struct snd_pcm_runtime *runtime);
394 int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
395 struct rsnd_dai *rdai,
397 int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
398 struct rsnd_dai *rdai,
400 int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
401 struct rsnd_dai *rdai);
403 #define rsnd_src_nr(priv) ((priv)->src_nr)
408 int rsnd_ssi_probe(struct platform_device *pdev,
409 const struct rsnd_of_data *of_data,
410 struct rsnd_priv *priv);
411 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
412 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
417 int rsnd_dvc_probe(struct platform_device *pdev,
418 const struct rsnd_of_data *of_data,
419 struct rsnd_priv *priv);
420 void rsnd_dvc_remove(struct platform_device *pdev,
421 struct rsnd_priv *priv);
422 struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
424 #define rsnd_dvc_nr(priv) ((priv)->dvc_nr)