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/* Copyright (c) 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"
struct hotword_triggered_msg {
struct cras_main_message header;
int64_t tv_sec;
int64_t tv_nsec;
};
/* The following functions are called from audio thread. */
static void init_hotword_triggered_msg(struct hotword_triggered_msg *msg)
{
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
memset(msg, 0, sizeof(*msg));
msg->header.type = CRAS_MAIN_HOTWORD_TRIGGERED;
msg->header.length = sizeof(*msg);
msg->tv_sec = now.tv_sec;
msg->tv_nsec = now.tv_nsec;
}
int cras_hotword_send_triggered_msg()
{
struct hotword_triggered_msg msg;
int rc;
init_hotword_triggered_msg(&msg);
rc = cras_main_message_send((struct cras_main_message *)&msg);
if (rc < 0)
syslog(LOG_ERR, "Failed to send hotword triggered message!");
return rc;
}
/* The following functions are called from main thread. */
static void handle_hotword_message(struct cras_main_message *msg, void *arg)
{
struct hotword_triggered_msg *hotword_msg =
(struct hotword_triggered_msg *)msg;
cras_observer_notify_hotword_triggered(hotword_msg->tv_sec,
hotword_msg->tv_nsec);
}
int cras_hotword_handler_init()
{
cras_main_message_add_handler(CRAS_MAIN_HOTWORD_TRIGGERED,
handle_hotword_message, NULL);
return 0;
}
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