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/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>
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
35 RSND_REG_SRC_ROUTE_SEL,
36 RSND_REG_SRC_TMG_SEL0,
37 RSND_REG_SRC_TMG_SEL1,
38 RSND_REG_SRC_TMG_SEL2,
49 RSND_REG_AUDIO_CLK_SEL0,
50 RSND_REG_AUDIO_CLK_SEL1,
51 RSND_REG_AUDIO_CLK_SEL2,
52 RSND_REG_AUDIO_CLK_SEL3,
53 RSND_REG_AUDIO_CLK_SEL4,
54 RSND_REG_AUDIO_CLK_SEL5,
69 struct rsnd_dai_stream;
72 * R-Car basic functions
74 #define rsnd_mod_read(m, r) \
75 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
76 #define rsnd_mod_write(m, r, d) \
77 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
78 #define rsnd_mod_bset(m, r, s, d) \
79 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
81 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
82 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
83 enum rsnd_reg reg, u32 data);
84 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
91 struct rsnd_priv *priv;
92 struct sh_dmae_slave slave;
93 struct work_struct work;
94 struct dma_chan *chan;
95 enum dma_data_direction dir;
96 int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len);
97 int (*complete)(struct rsnd_dma *dma);
102 void rsnd_dma_start(struct rsnd_dma *dma);
103 void rsnd_dma_stop(struct rsnd_dma *dma);
104 int rsnd_dma_available(struct rsnd_dma *dma);
105 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
107 int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len),
108 int (*complete)(struct rsnd_dma *dma));
109 void rsnd_dma_quit(struct rsnd_priv *priv,
110 struct rsnd_dma *dma);
117 struct rsnd_mod_ops {
119 int (*init)(struct rsnd_mod *mod,
120 struct rsnd_dai *rdai,
121 struct rsnd_dai_stream *io);
122 int (*quit)(struct rsnd_mod *mod,
123 struct rsnd_dai *rdai,
124 struct rsnd_dai_stream *io);
125 int (*start)(struct rsnd_mod *mod,
126 struct rsnd_dai *rdai,
127 struct rsnd_dai_stream *io);
128 int (*stop)(struct rsnd_mod *mod,
129 struct rsnd_dai *rdai,
130 struct rsnd_dai_stream *io);
135 struct rsnd_priv *priv;
136 struct rsnd_mod_ops *ops;
137 struct list_head list; /* connect to rsnd_dai playback/capture */
141 #define rsnd_mod_to_priv(mod) ((mod)->priv)
142 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
143 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
144 #define rsnd_mod_id(mod) ((mod)->id)
145 #define for_each_rsnd_mod(pos, n, io) \
146 list_for_each_entry_safe(pos, n, &(io)->head, list)
147 #define rsnd_mod_call(mod, func, rdai, io) \
148 (!(mod) ? -ENODEV : \
149 !((mod)->ops->func) ? 0 : \
150 (mod)->ops->func(mod, rdai, io))
152 void rsnd_mod_init(struct rsnd_priv *priv,
153 struct rsnd_mod *mod,
154 struct rsnd_mod_ops *ops,
156 char *rsnd_mod_name(struct rsnd_mod *mod);
161 #define RSND_DAI_NAME_SIZE 16
162 struct rsnd_dai_stream {
163 struct list_head head; /* head of rsnd_mod list */
164 struct snd_pcm_substream *substream;
168 int next_period_byte;
172 char name[RSND_DAI_NAME_SIZE];
173 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
174 struct rsnd_dai_stream playback;
175 struct rsnd_dai_stream capture;
181 int data_alignment:1;
184 #define rsnd_dai_nr(priv) ((priv)->dai_nr)
185 #define for_each_rsnd_dai(rdai, priv, i) \
186 for (i = 0, (rdai) = rsnd_dai_get(priv, i); \
187 i < rsnd_dai_nr(priv); \
188 i++, (rdai) = rsnd_dai_get(priv, i))
190 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
191 int rsnd_dai_disconnect(struct rsnd_mod *mod);
192 int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod,
193 struct rsnd_dai_stream *io);
194 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
195 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
196 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
197 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
199 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
200 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
205 int rsnd_gen_probe(struct platform_device *pdev,
206 struct rcar_snd_info *info,
207 struct rsnd_priv *priv);
208 void rsnd_gen_remove(struct platform_device *pdev,
209 struct rsnd_priv *priv);
210 int rsnd_gen_path_init(struct rsnd_priv *priv,
211 struct rsnd_dai *rdai,
212 struct rsnd_dai_stream *io);
213 int rsnd_gen_path_exit(struct rsnd_priv *priv,
214 struct rsnd_dai *rdai,
215 struct rsnd_dai_stream *io);
216 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
217 struct rsnd_mod *mod,
219 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
220 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
225 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
226 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
227 int rsnd_adg_probe(struct platform_device *pdev,
228 struct rcar_snd_info *info,
229 struct rsnd_priv *priv);
230 void rsnd_adg_remove(struct platform_device *pdev,
231 struct rsnd_priv *priv);
239 struct rcar_snd_info *info;
243 * below value will be filled on rsnd_gen_probe()
248 * below value will be filled on rsnd_scu_probe()
254 * below value will be filled on rsnd_adg_probe()
259 * below value will be filled on rsnd_ssi_probe()
264 * below value will be filled on rsnd_dai_probe()
266 struct snd_soc_dai_driver *daidrv;
267 struct rsnd_dai *rdai;
271 #define rsnd_priv_to_dev(priv) ((priv)->dev)
272 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
273 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
278 int rsnd_scu_probe(struct platform_device *pdev,
279 struct rcar_snd_info *info,
280 struct rsnd_priv *priv);
281 void rsnd_scu_remove(struct platform_device *pdev,
282 struct rsnd_priv *priv);
283 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
284 bool rsnd_scu_hpbif_is_enable(struct rsnd_mod *mod);
285 #define rsnd_scu_nr(priv) ((priv)->scu_nr)
290 int rsnd_ssi_probe(struct platform_device *pdev,
291 struct rcar_snd_info *info,
292 struct rsnd_priv *priv);
293 void rsnd_ssi_remove(struct platform_device *pdev,
294 struct rsnd_priv *priv);
295 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
296 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
297 int dai_id, int is_play);