1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Renesas R-Car CMD support
*
* Copyright (C) 2015 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_cmd {
struct rsnd_mod mod;
};
#define CMD_NAME "cmd"
#define rsnd_cmd_nr(priv) ((priv)->cmd_nr)
#define for_each_rsnd_cmd(pos, priv, i) \
for ((i) = 0; \
((i) < rsnd_cmd_nr(priv)) && \
((pos) = (struct rsnd_cmd *)(priv)->cmd + i); \
i++)
static int rsnd_cmd_init(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
struct rsnd_mod *mix = rsnd_io_to_mod_mix(io);
struct device *dev = rsnd_priv_to_dev(priv);
u32 data;
u32 path[] = {
[1] = 1 << 0,
[5] = 1 << 8,
[6] = 1 << 12,
[9] = 1 << 15,
};
if (!mix && !dvc)
return 0;
if (ARRAY_SIZE(path) < rsnd_mod_id(mod) + 1)
return -ENXIO;
if (mix) {
struct rsnd_dai *rdai;
struct rsnd_mod *src;
struct rsnd_dai_stream *tio;
int i;
/*
* it is assuming that integrater is well understanding about
* data path. Here doesn't check impossible connection,
* like src2 + src5
*/
data = 0;
for_each_rsnd_dai(rdai, priv, i) {
tio = &rdai->playback;
src = rsnd_io_to_mod_src(tio);
if (mix == rsnd_io_to_mod_mix(tio))
data |= path[rsnd_mod_id(src)];
tio = &rdai->capture;
src = rsnd_io_to_mod_src(tio);
if (mix == rsnd_io_to_mod_mix(tio))
data |= path[rsnd_mod_id(src)];
}
} else {
struct rsnd_mod *src = rsnd_io_to_mod_src(io);
u8 cmd_case[] = {
[0] = 0x3,
[1] = 0x3,
[2] = 0x4,
[3] = 0x1,
[4] = 0x2,
[5] = 0x4,
[6] = 0x1,
[9] = 0x2,
};
data = path[rsnd_mod_id(src)] |
cmd_case[rsnd_mod_id(src)] << 16;
}
dev_dbg(dev, "ctu/mix path = 0x%08x", data);
rsnd_mod_write(mod, CMD_ROUTE_SLCT, data);
rsnd_mod_write(mod, CMD_BUSIF_MODE, rsnd_get_busif_shift(io, mod) | 1);
rsnd_mod_write(mod, CMD_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
rsnd_adg_set_cmd_timsel_gen2(mod, io);
return 0;
}
static int rsnd_cmd_start(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
rsnd_mod_write(mod, CMD_CTRL, 0x10);
return 0;
}
static int rsnd_cmd_stop(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv)
{
rsnd_mod_write(mod, CMD_CTRL, 0);
return 0;
}
static struct rsnd_mod_ops rsnd_cmd_ops = {
.name = CMD_NAME,
.init = rsnd_cmd_init,
.start = rsnd_cmd_start,
.stop = rsnd_cmd_stop,
};
int rsnd_cmd_attach(struct rsnd_dai_stream *io, int id)
{
struct rsnd_priv *priv = rsnd_io_to_priv(io);
struct rsnd_mod *mod = rsnd_cmd_mod_get(priv, id);
return rsnd_dai_connect(mod, io, mod->type);
}
struct rsnd_mod *rsnd_cmd_mod_get(struct rsnd_priv *priv, int id)
{
if (WARN_ON(id < 0 || id >= rsnd_cmd_nr(priv)))
id = 0;
return rsnd_mod_get((struct rsnd_cmd *)(priv->cmd) + id);
}
int rsnd_cmd_probe(struct rsnd_priv *priv)
{
struct device *dev = rsnd_priv_to_dev(priv);
struct rsnd_cmd *cmd;
int i, nr, ret;
/* This driver doesn't support Gen1 at this point */
if (rsnd_is_gen1(priv))
return 0;
/* same number as DVC */
nr = priv->dvc_nr;
if (!nr)
return 0;
cmd = devm_kzalloc(dev, sizeof(*cmd) * nr, GFP_KERNEL);
if (!cmd)
return -ENOMEM;
priv->cmd_nr = nr;
priv->cmd = cmd;
for_each_rsnd_cmd(cmd, priv, i) {
ret = rsnd_mod_init(priv, rsnd_mod_get(cmd),
&rsnd_cmd_ops, NULL,
rsnd_mod_get_status, RSND_MOD_CMD, i);
if (ret)
return ret;
}
return 0;
}
void rsnd_cmd_remove(struct rsnd_priv *priv)
{
struct rsnd_cmd *cmd;
int i;
for_each_rsnd_cmd(cmd, priv, i) {
rsnd_mod_quit(rsnd_mod_get(cmd));
}
}
|
