mirror of https://gitee.com/openkylin/linux.git
126 lines
2.8 KiB
C
126 lines
2.8 KiB
C
|
/*
|
||
|
|
* Renesas R-Car SCU support
|
||
|
|
*
|
||
|
|
* Copyright (C) 2013 Renesas Solutions Corp.
|
||
|
|
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
#include "rsnd.h"
|
||
|
|
|
||
|
|
struct rsnd_scu {
|
||
|
|
struct rsnd_scu_platform_info *info; /* rcar_snd.h */
|
||
|
|
struct rsnd_mod mod;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define rsnd_mod_to_scu(_mod) \
|
||
|
|
container_of((_mod), struct rsnd_scu, mod)
|
||
|
|
|
||
|
|
#define for_each_rsnd_scu(pos, priv, i) \
|
||
|
|
for ((i) = 0; \
|
||
|
|
((i) < rsnd_scu_nr(priv)) && \
|
||
|
|
((pos) = (struct rsnd_scu *)(priv)->scu + i); \
|
||
|
|
i++)
|
||
|
|
|
||
|
|
static int rsnd_scu_init(struct rsnd_mod *mod,
|
||
|
|
struct rsnd_dai *rdai,
|
||
|
|
struct rsnd_dai_stream *io)
|
||
|
|
{
|
||
|
|
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
||
|
|
|
||
|
|
dev_dbg(dev, "%s.%d init\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rsnd_scu_quit(struct rsnd_mod *mod,
|
||
|
|
struct rsnd_dai *rdai,
|
||
|
|
struct rsnd_dai_stream *io)
|
||
|
|
{
|
||
|
|
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
||
|
|
|
||
|
|
dev_dbg(dev, "%s.%d quit\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rsnd_scu_start(struct rsnd_mod *mod,
|
||
|
|
struct rsnd_dai *rdai,
|
||
|
|
struct rsnd_dai_stream *io)
|
||
|
|
{
|
||
|
|
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
||
|
|
|
||
|
|
dev_dbg(dev, "%s.%d start\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int rsnd_scu_stop(struct rsnd_mod *mod,
|
||
|
|
struct rsnd_dai *rdai,
|
||
|
|
struct rsnd_dai_stream *io)
|
||
|
|
{
|
||
|
|
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
|
||
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
||
|
|
|
||
|
|
dev_dbg(dev, "%s.%d stop\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct rsnd_mod_ops rsnd_scu_ops = {
|
||
|
|
.name = "scu",
|
||
|
|
.init = rsnd_scu_init,
|
||
|
|
.quit = rsnd_scu_quit,
|
||
|
|
.start = rsnd_scu_start,
|
||
|
|
.stop = rsnd_scu_stop,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id)
|
||
|
|
{
|
||
|
|
BUG_ON(id < 0 || id >= rsnd_scu_nr(priv));
|
||
|
|
|
||
|
|
return &((struct rsnd_scu *)(priv->scu) + id)->mod;
|
||
|
|
}
|
||
|
|
|
||
|
|
int rsnd_scu_probe(struct platform_device *pdev,
|
||
|
|
struct rcar_snd_info *info,
|
||
|
|
struct rsnd_priv *priv)
|
||
|
|
{
|
||
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
||
|
|
struct rsnd_scu *scu;
|
||
|
|
int i, nr;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* init SCU
|
||
|
|
*/
|
||
|
|
nr = info->scu_info_nr;
|
||
|
|
scu = devm_kzalloc(dev, sizeof(*scu) * nr, GFP_KERNEL);
|
||
|
|
if (!scu) {
|
||
|
|
dev_err(dev, "SCU allocate failed\n");
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
priv->scu_nr = nr;
|
||
|
|
priv->scu = scu;
|
||
|
|
|
||
|
|
for_each_rsnd_scu(scu, priv, i) {
|
||
|
|
rsnd_mod_init(priv, &scu->mod,
|
||
|
|
&rsnd_scu_ops, i);
|
||
|
|
scu->info = &info->scu_info[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
dev_dbg(dev, "scu probed\n");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void rsnd_scu_remove(struct platform_device *pdev,
|
||
|
|
struct rsnd_priv *priv)
|
||
|
|
{
|
||
|
|
}
|