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, /* 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 */
43 RSND_REG_INT_ENABLE, /* for Gen2 */
44 RSND_REG_SRC_ROUTE_MODE0,
57 RSND_REG_AUDIO_CLK_SEL0,
58 RSND_REG_AUDIO_CLK_SEL1,
59 RSND_REG_AUDIO_CLK_SEL2,
60 RSND_REG_AUDIO_CLK_SEL3, /* for Gen1 */
61 RSND_REG_AUDIO_CLK_SEL4, /* for Gen1 */
62 RSND_REG_AUDIO_CLK_SEL5, /* for Gen1 */
77 struct rsnd_dai_stream;
80 * R-Car basic functions
82 #define rsnd_mod_read(m, r) \
83 rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
84 #define rsnd_mod_write(m, r, d) \
85 rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
86 #define rsnd_mod_bset(m, r, s, d) \
87 rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
89 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
90 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
91 enum rsnd_reg reg, u32 data);
92 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
99 struct rsnd_priv *priv;
100 struct sh_dmae_slave slave;
101 struct work_struct work;
102 struct dma_chan *chan;
103 enum dma_data_direction dir;
104 int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len);
105 int (*complete)(struct rsnd_dma *dma);
110 void rsnd_dma_start(struct rsnd_dma *dma);
111 void rsnd_dma_stop(struct rsnd_dma *dma);
112 int rsnd_dma_available(struct rsnd_dma *dma);
113 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
115 int (*inquiry)(struct rsnd_dma *dma, dma_addr_t *buf, int *len),
116 int (*complete)(struct rsnd_dma *dma));
117 void rsnd_dma_quit(struct rsnd_priv *priv,
118 struct rsnd_dma *dma);
125 struct rsnd_mod_ops {
127 int (*init)(struct rsnd_mod *mod,
128 struct rsnd_dai *rdai,
129 struct rsnd_dai_stream *io);
130 int (*quit)(struct rsnd_mod *mod,
131 struct rsnd_dai *rdai,
132 struct rsnd_dai_stream *io);
133 int (*start)(struct rsnd_mod *mod,
134 struct rsnd_dai *rdai,
135 struct rsnd_dai_stream *io);
136 int (*stop)(struct rsnd_mod *mod,
137 struct rsnd_dai *rdai,
138 struct rsnd_dai_stream *io);
143 struct rsnd_priv *priv;
144 struct rsnd_mod_ops *ops;
145 struct list_head list; /* connect to rsnd_dai playback/capture */
149 #define rsnd_mod_to_priv(mod) ((mod)->priv)
150 #define rsnd_mod_to_dma(mod) (&(mod)->dma)
151 #define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
152 #define rsnd_mod_id(mod) ((mod)->id)
153 #define for_each_rsnd_mod(pos, n, io) \
154 list_for_each_entry_safe(pos, n, &(io)->head, list)
155 #define rsnd_mod_call(mod, func, rdai, io) \
156 (!(mod) ? -ENODEV : \
157 !((mod)->ops->func) ? 0 : \
158 (mod)->ops->func(mod, rdai, io))
160 void rsnd_mod_init(struct rsnd_priv *priv,
161 struct rsnd_mod *mod,
162 struct rsnd_mod_ops *ops,
164 char *rsnd_mod_name(struct rsnd_mod *mod);
169 #define RSND_DAI_NAME_SIZE 16
170 struct rsnd_dai_stream {
171 struct list_head head; /* head of rsnd_mod list */
172 struct snd_pcm_substream *substream;
176 int next_period_byte;
180 char name[RSND_DAI_NAME_SIZE];
181 struct rsnd_dai_platform_info *info; /* rcar_snd.h */
182 struct rsnd_dai_stream playback;
183 struct rsnd_dai_stream capture;
185 unsigned int clk_master:1;
186 unsigned int bit_clk_inv:1;
187 unsigned int frm_clk_inv:1;
188 unsigned int sys_delay:1;
189 unsigned int data_alignment:1;
192 #define rsnd_dai_nr(priv) ((priv)->dai_nr)
193 #define for_each_rsnd_dai(rdai, priv, i) \
194 for (i = 0, (rdai) = rsnd_dai_get(priv, i); \
195 i < rsnd_dai_nr(priv); \
196 i++, (rdai) = rsnd_dai_get(priv, i))
198 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
199 int rsnd_dai_disconnect(struct rsnd_mod *mod);
200 int rsnd_dai_connect(struct rsnd_dai *rdai, struct rsnd_mod *mod,
201 struct rsnd_dai_stream *io);
202 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
203 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai);
204 #define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
205 #define rsnd_io_to_runtime(io) ((io)->substream->runtime)
207 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
208 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
213 int rsnd_gen_probe(struct platform_device *pdev,
214 struct rcar_snd_info *info,
215 struct rsnd_priv *priv);
216 void rsnd_gen_remove(struct platform_device *pdev,
217 struct rsnd_priv *priv);
218 int rsnd_gen_path_init(struct rsnd_priv *priv,
219 struct rsnd_dai *rdai,
220 struct rsnd_dai_stream *io);
221 int rsnd_gen_path_exit(struct rsnd_priv *priv,
222 struct rsnd_dai *rdai,
223 struct rsnd_dai_stream *io);
224 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
225 struct rsnd_mod *mod,
227 #define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
228 #define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
233 int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
234 int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
235 int rsnd_adg_probe(struct platform_device *pdev,
236 struct rcar_snd_info *info,
237 struct rsnd_priv *priv);
238 void rsnd_adg_remove(struct platform_device *pdev,
239 struct rsnd_priv *priv);
240 int rsnd_adg_set_convert_clk(struct rsnd_priv *priv,
241 struct rsnd_mod *mod,
242 unsigned int src_rate,
243 unsigned int dst_rate);
251 struct rcar_snd_info *info;
255 * below value will be filled on rsnd_gen_probe()
260 * below value will be filled on rsnd_scu_probe()
266 * below value will be filled on rsnd_adg_probe()
271 * below value will be filled on rsnd_ssi_probe()
276 * below value will be filled on rsnd_dai_probe()
278 struct snd_soc_dai_driver *daidrv;
279 struct rsnd_dai *rdai;
283 #define rsnd_priv_to_dev(priv) ((priv)->dev)
284 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
285 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
290 int rsnd_scu_probe(struct platform_device *pdev,
291 struct rcar_snd_info *info,
292 struct rsnd_priv *priv);
293 void rsnd_scu_remove(struct platform_device *pdev,
294 struct rsnd_priv *priv);
295 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
296 bool rsnd_scu_hpbif_is_enable(struct rsnd_mod *mod);
297 unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
298 struct rsnd_mod *ssi_mod,
299 struct snd_pcm_runtime *runtime);
301 #define rsnd_scu_nr(priv) ((priv)->scu_nr)
306 int rsnd_ssi_probe(struct platform_device *pdev,
307 struct rcar_snd_info *info,
308 struct rsnd_priv *priv);
309 void rsnd_ssi_remove(struct platform_device *pdev,
310 struct rsnd_priv *priv);
311 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
312 struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
313 int dai_id, int is_play);