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,
52 RSND_REG_AUDIO_CLK_SEL0,
53 RSND_REG_AUDIO_CLK_SEL1,
87 #define RSND_REG_SRC_ROUTE_SEL RSND_REG_SHARE01
88 #define RSND_REG_SRC_TMG_SEL0 RSND_REG_SHARE02
89 #define RSND_REG_SRC_TMG_SEL1 RSND_REG_SHARE03
90 #define RSND_REG_SRC_TMG_SEL2 RSND_REG_SHARE04
91 #define RSND_REG_SRC_ROUTE_CTRL RSND_REG_SHARE05
92 #define RSND_REG_SRC_MNFSR RSND_REG_SHARE06
93 #define RSND_REG_AUDIO_CLK_SEL3 RSND_REG_SHARE07
94 #define RSND_REG_AUDIO_CLK_SEL4 RSND_REG_SHARE08
95 #define RSND_REG_AUDIO_CLK_SEL5 RSND_REG_SHARE09
98 #define RSND_REG_SRC_CTRL RSND_REG_SHARE01
99 #define RSND_REG_SSI_CTRL RSND_REG_SHARE02
100 #define RSND_REG_SSI_BUSIF_MODE RSND_REG_SHARE03
101 #define RSND_REG_SSI_BUSIF_ADINR RSND_REG_SHARE04
102 #define RSND_REG_INT_ENABLE RSND_REG_SHARE05
103 #define RSND_REG_SRC_BSDSR RSND_REG_SHARE06
104 #define RSND_REG_SRC_BSISR RSND_REG_SHARE07
105 #define RSND_REG_DIV_EN RSND_REG_SHARE08
106 #define RSND_REG_SRCIN_TIMSEL0 RSND_REG_SHARE09
107 #define RSND_REG_SRCIN_TIMSEL1 RSND_REG_SHARE10
108 #define RSND_REG_SRCIN_TIMSEL2 RSND_REG_SHARE11
109 #define RSND_REG_SRCIN_TIMSEL3 RSND_REG_SHARE12
110 #define RSND_REG_SRCIN_TIMSEL4 RSND_REG_SHARE13
111 #define RSND_REG_SRCOUT_TIMSEL0 RSND_REG_SHARE14
112 #define RSND_REG_SRCOUT_TIMSEL1 RSND_REG_SHARE15
113 #define RSND_REG_SRCOUT_TIMSEL2 RSND_REG_SHARE16
114 #define RSND_REG_SRCOUT_TIMSEL3 RSND_REG_SHARE17
115 #define RSND_REG_SRCOUT_TIMSEL4 RSND_REG_SHARE18
116 #define RSND_REG_AUDIO_CLK_SEL2 RSND_REG_SHARE19
122 struct rsnd_dai_stream;
125 * R-Car basic functions
127 #define rsnd_mod_read(m, r) \
128 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
129 #define rsnd_mod_write(m, r, d) \
130 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
131 #define rsnd_mod_bset(m, r, s, d) \
132 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
134 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
135 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
136 enum rsnd_reg reg, u32 data);
137 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
144 struct sh_dmae_slave slave;
145 struct work_struct work;
146 struct dma_chan *chan;
147 enum dma_data_direction dir;
150 int offset; /* it cares A/B plane */
153 void rsnd_dma_start(struct rsnd_dma *dma);
154 void rsnd_dma_stop(struct rsnd_dma *dma);
155 int rsnd_dma_available(struct rsnd_dma *dma);
156 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
157 int is_play, int id);
158 void rsnd_dma_quit(struct rsnd_priv *priv,
159 struct rsnd_dma *dma);
171 struct rsnd_mod_ops {
173 int (*probe)(struct rsnd_mod *mod,
174 struct rsnd_dai *rdai,
175 struct rsnd_dai_stream *io);
176 int (*remove)(struct rsnd_mod *mod,
177 struct rsnd_dai *rdai,
178 struct rsnd_dai_stream *io);
179 int (*init)(struct rsnd_mod *mod,
180 struct rsnd_dai *rdai,
181 struct rsnd_dai_stream *io);
182 int (*quit)(struct rsnd_mod *mod,
183 struct rsnd_dai *rdai,
184 struct rsnd_dai_stream *io);
185 int (*start)(struct rsnd_mod *mod,
186 struct rsnd_dai *rdai,
187 struct rsnd_dai_stream *io);
188 int (*stop)(struct rsnd_mod *mod,
189 struct rsnd_dai *rdai,
190 struct rsnd_dai_stream *io);
193 struct rsnd_dai_stream;
196 enum rsnd_mod_type type;
197 struct rsnd_priv *priv;
198 struct rsnd_mod_ops *ops;
200 struct rsnd_dai_stream *io;
203 #define rsnd_mod_to_priv(mod) ((mod)->priv)
204 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
205 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
206 #define rsnd_mod_to_io(mod) ((mod)->io)
207 #define rsnd_mod_id(mod) ((mod)->id)
209 void rsnd_mod_init(struct rsnd_priv *priv,
210 struct rsnd_mod *mod,
211 struct rsnd_mod_ops *ops,
212 enum rsnd_mod_type type,
214 char *rsnd_mod_name(struct rsnd_mod *mod);
219 #define RSND_DAI_NAME_SIZE 16
220 struct rsnd_dai_stream {
221 struct snd_pcm_substream *substream;
222 struct rsnd_mod *mod[RSND_MOD_MAX];
223 struct rsnd_dai_path_info *info; /* rcar_snd.h */
227 int next_period_byte;
229 #define rsnd_io_to_mod_ssi(io) ((io)->mod[RSND_MOD_SSI])
230 #define rsnd_io_to_mod_src(io) ((io)->mod[RSND_MOD_SRC])
233 char name[RSND_DAI_NAME_SIZE];
234 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
235 struct rsnd_dai_stream playback;
236 struct rsnd_dai_stream capture;
238 unsigned int clk_master:1;
239 unsigned int bit_clk_inv:1;
240 unsigned int frm_clk_inv:1;
241 unsigned int sys_delay:1;
242 unsigned int data_alignment:1;
245 #define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
246 #define for_each_rsnd_dai(rdai, priv, i) \
248 (i < rsnd_rdai_nr(priv)) && \
249 ((rdai) = rsnd_dai_get(priv, i)); \
252 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
253 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
254 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
255 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
256 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
258 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
259 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
260 #define rsnd_dai_is_clk_master(rdai) ((rdai)->clk_master)
265 int rsnd_gen_probe(struct platform_device *pdev,
266 const struct rsnd_of_data *of_data,
267 struct rsnd_priv *priv);
268 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
269 struct rsnd_mod *mod,
271 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
272 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
277 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
278 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
279 int rsnd_adg_probe(struct platform_device *pdev,
280 const struct rsnd_of_data *of_data,
281 struct rsnd_priv *priv);
282 int rsnd_adg_set_convert_clk_gen1(struct rsnd_priv *priv,
283 struct rsnd_mod *mod,
284 unsigned int src_rate,
285 unsigned int dst_rate);
286 int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
287 struct rsnd_dai *rdai,
288 struct rsnd_dai_stream *io,
289 unsigned int src_rate,
290 unsigned int dst_rate);
291 int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
292 struct rsnd_dai *rdai,
293 struct rsnd_dai_stream *io);
298 struct rsnd_of_data {
305 struct rcar_snd_info *info;
309 * below value will be filled on rsnd_gen_probe()
314 * below value will be filled on rsnd_src_probe()
320 * below value will be filled on rsnd_adg_probe()
325 * below value will be filled on rsnd_ssi_probe()
331 * below value will be filled on rsnd_dai_probe()
333 struct snd_soc_dai_driver *daidrv;
334 struct rsnd_dai *rdai;
338 #define rsnd_priv_to_dev(priv) ((priv)->dev)
339 #define rsnd_priv_to_info(priv) ((priv)->info)
340 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
341 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
343 #define rsnd_info_is_playback(priv, type) \
345 struct rcar_snd_info *info = rsnd_priv_to_info(priv); \
346 int i, is_play = 0; \
347 for (i = 0; i < info->dai_info_nr; i++) { \
348 if (info->dai_info[i].playback.type == (type)->info) { \
359 int rsnd_src_probe(struct platform_device *pdev,
360 const struct rsnd_of_data *of_data,
361 struct rsnd_priv *priv);
362 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
363 unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
364 struct rsnd_dai_stream *io,
365 struct snd_pcm_runtime *runtime);
366 int rsnd_src_ssi_mode_init(struct rsnd_mod *ssi_mod,
367 struct rsnd_dai *rdai,
368 struct rsnd_dai_stream *io);
369 int rsnd_src_enable_ssi_irq(struct rsnd_mod *ssi_mod,
370 struct rsnd_dai *rdai,
371 struct rsnd_dai_stream *io);
373 #define rsnd_src_nr(priv) ((priv)->src_nr)
378 int rsnd_ssi_probe(struct platform_device *pdev,
379 const struct rsnd_of_data *of_data,
380 struct rsnd_priv *priv);
381 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
382 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
383 int dai_id, int is_play);
384 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
385 int rsnd_ssi_is_play(struct rsnd_mod *mod);