2 * Renesas R-Car CMD support
4 * Copyright (C) 2015 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.
17 #define CMD_NAME "cmd"
19 #define rsnd_cmd_nr(priv) ((priv)->cmd_nr)
20 #define for_each_rsnd_cmd(pos, priv, i) \
22 ((i) < rsnd_cmd_nr(priv)) && \
23 ((pos) = (struct rsnd_cmd *)(priv)->cmd + i); \
26 static int rsnd_cmd_init(struct rsnd_mod
*mod
,
27 struct rsnd_dai_stream
*io
,
28 struct rsnd_priv
*priv
)
30 struct rsnd_mod
*dvc
= rsnd_io_to_mod_dvc(io
);
31 struct rsnd_mod
*mix
= rsnd_io_to_mod_mix(io
);
32 struct device
*dev
= rsnd_priv_to_dev(priv
);
44 if (ARRAY_SIZE(path
) < rsnd_mod_id(mod
) + 1)
48 struct rsnd_dai
*rdai
;
50 struct rsnd_dai_stream
*tio
;
54 * it is assuming that integrater is well understanding about
55 * data path. Here doesn't check impossible connection,
59 for_each_rsnd_dai(rdai
, priv
, i
) {
60 tio
= &rdai
->playback
;
61 src
= rsnd_io_to_mod_src(tio
);
62 if (mix
== rsnd_io_to_mod_mix(tio
))
63 data
|= path
[rsnd_mod_id(src
)];
66 src
= rsnd_io_to_mod_src(tio
);
67 if (mix
== rsnd_io_to_mod_mix(tio
))
68 data
|= path
[rsnd_mod_id(src
)];
72 struct rsnd_mod
*src
= rsnd_io_to_mod_src(io
);
85 data
= path
[rsnd_mod_id(src
)] |
86 cmd_case
[rsnd_mod_id(src
)] << 16;
89 dev_dbg(dev
, "ctu/mix path = 0x%08x", data
);
91 rsnd_mod_write(mod
, CMD_ROUTE_SLCT
, data
);
92 rsnd_mod_write(mod
, CMD_BUSIF_DALIGN
, rsnd_get_dalign(mod
, io
));
94 rsnd_adg_set_cmd_timsel_gen2(mod
, io
);
99 static int rsnd_cmd_start(struct rsnd_mod
*mod
,
100 struct rsnd_dai_stream
*io
,
101 struct rsnd_priv
*priv
)
103 rsnd_mod_write(mod
, CMD_CTRL
, 0x10);
108 static int rsnd_cmd_stop(struct rsnd_mod
*mod
,
109 struct rsnd_dai_stream
*io
,
110 struct rsnd_priv
*priv
)
112 rsnd_mod_write(mod
, CMD_CTRL
, 0);
117 static struct rsnd_mod_ops rsnd_cmd_ops
= {
119 .init
= rsnd_cmd_init
,
120 .start
= rsnd_cmd_start
,
121 .stop
= rsnd_cmd_stop
,
124 int rsnd_cmd_attach(struct rsnd_dai_stream
*io
, int id
)
126 struct rsnd_priv
*priv
= rsnd_io_to_priv(io
);
127 struct rsnd_mod
*mod
= rsnd_cmd_mod_get(priv
, id
);
129 return rsnd_dai_connect(mod
, io
, mod
->type
);
132 struct rsnd_mod
*rsnd_cmd_mod_get(struct rsnd_priv
*priv
, int id
)
134 if (WARN_ON(id
< 0 || id
>= rsnd_cmd_nr(priv
)))
137 return rsnd_mod_get((struct rsnd_cmd
*)(priv
->cmd
) + id
);
140 int rsnd_cmd_probe(struct rsnd_priv
*priv
)
142 struct device
*dev
= rsnd_priv_to_dev(priv
);
143 struct rsnd_cmd
*cmd
;
146 /* This driver doesn't support Gen1 at this point */
147 if (rsnd_is_gen1(priv
))
150 /* same number as DVC */
155 cmd
= devm_kzalloc(dev
, sizeof(*cmd
) * nr
, GFP_KERNEL
);
162 for_each_rsnd_cmd(cmd
, priv
, i
) {
163 ret
= rsnd_mod_init(priv
, rsnd_mod_get(cmd
),
165 rsnd_mod_get_status
, RSND_MOD_CMD
, i
);
173 void rsnd_cmd_remove(struct rsnd_priv
*priv
)
175 struct rsnd_cmd
*cmd
;
178 for_each_rsnd_cmd(cmd
, priv
, i
) {
179 rsnd_mod_quit(rsnd_mod_get(cmd
));