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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Samsung Electronics
* Rajeshwari Shinde <rajeshwari.s@samsung.com>
*/
#include <command.h>
#include <dm.h>
#include <fdtdec.h>
#include <sound.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
/* Initilaise sound subsystem */
static int do_init(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
int ret;
ret = uclass_first_device_err(UCLASS_SOUND, &dev);
if (!ret)
ret = sound_setup(dev);
if (ret) {
printf("Initialise Audio driver failed (ret=%d)\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
/* play sound from buffer */
static int do_play(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
int ret = 0;
int msec = 1000;
int freq = 400;
bool first = true;
ret = uclass_first_device_err(UCLASS_SOUND, &dev);
if (ret)
goto err;
--argc;
++argv;
while (argc || first) {
first = false;
if (argc) {
msec = dectoul(argv[0], NULL);
--argc;
++argv;
}
if (argc) {
freq = dectoul(argv[0], NULL);
--argc;
++argv;
}
ret = sound_beep(dev, msec, freq);
if (ret)
goto err;
}
return 0;
err:
printf("Sound device failed to play (err=%d)\n", ret);
return CMD_RET_FAILURE;
}
static struct cmd_tbl cmd_sound_sub[] = {
U_BOOT_CMD_MKENT(init, 0, 1, do_init, "", ""),
U_BOOT_CMD_MKENT(play, INT_MAX, 1, do_play, "", ""),
};
/* process sound command */
static int do_sound(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct cmd_tbl *c;
if (argc < 1)
return CMD_RET_USAGE;
/* Strip off leading 'sound' command argument */
argc--;
argv++;
c = find_cmd_tbl(argv[0], &cmd_sound_sub[0], ARRAY_SIZE(cmd_sound_sub));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
U_BOOT_CMD(
sound, INT_MAX, 1, do_sound,
"sound sub-system",
"init - initialise the sound driver\n"
"sound play [len [freq [len [freq ...]]]] - play sounds\n"
" len - duration in ms\n"
" freq - frequency in Hz\n"
);
|
