blob: 313149ff545a99eaf7e9b5c30f4ac2af6353ee26 (
plain)
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
|
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdint.h>
#include <string.h>
#include <syslog.h>
#include "cras_main_message.h"
#include "cras_observer.h"
#include "cras_system_state.h"
struct non_empty_audio_msg {
struct cras_main_message header;
int32_t non_empty;
};
/* The following functions are called from audio thread. */
static void init_non_empty_audio_msg(struct non_empty_audio_msg *msg)
{
memset(msg, 0, sizeof(*msg));
msg->header.type = CRAS_MAIN_NON_EMPTY_AUDIO_STATE;
msg->header.length = sizeof(*msg);
}
int cras_non_empty_audio_send_msg(int32_t non_empty)
{
struct non_empty_audio_msg msg;
int rc;
init_non_empty_audio_msg(&msg);
msg.non_empty = non_empty;
rc = cras_main_message_send((struct cras_main_message *)&msg);
if (rc < 0)
syslog(LOG_ERR, "Failed to send non-empty audio message!");
return rc;
}
/* The following functions are called from main thread. */
static void handle_non_empty_audio_message(struct cras_main_message *msg,
void *arg)
{
struct non_empty_audio_msg *audio_msg =
(struct non_empty_audio_msg *)msg;
cras_system_state_set_non_empty_status(audio_msg->non_empty);
cras_observer_notify_non_empty_audio_state_changed(
audio_msg->non_empty);
}
int cras_non_empty_audio_handler_init()
{
cras_main_message_add_handler(CRAS_MAIN_NON_EMPTY_AUDIO_STATE,
handle_non_empty_audio_message, NULL);
return 0;
}
|
