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cpu/br28/tws_audio.c

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+/*****************************************************************
+>file name : tws_audio.c
+>create time : Wed 08 Dec 2021 01:52:02 PM CST
+>处理tws与audio模块相关的事件等技术交叉点
+*****************************************************************/
+#include "app_config.h"
+#include "media/includes.h"
+#include "system/includes.h"
+
+#if TCFG_USER_TWS_ENABLE
+#include "btstack/avctp_user.h"
+#include "bt_tws.h"
+
+extern int CONFIG_BTCTLER_TWS_ENABLE;
+extern struct audio_dac_hdl dac_hdl;
+
+static void tws_audio_event_handler(struct sys_event *event)
+{
+    if (!CONFIG_BTCTLER_TWS_ENABLE) {
+        return;
+    }
+
+    if (((u32)event->arg != SYS_BT_EVENT_FROM_TWS)) {
+        return;
+    }
+
+    struct bt_event *e = &event->u.bt;
+    int state;
+    if (e->event == TWS_EVENT_CONNECTED) {
+        state = e->args[2];
+        /*
+         * 当TWS连接时，并且确认要播放提示音，则提前进行DAC上电
+         * 原因: DAC上电有较大延迟，会导致连接提示音的错位
+         */
+        if (!get_bt_tws_discon_dly_state() && (get_call_status() == BT_CALL_HANGUP) && !(state & TWS_STA_SBC_OPEN)) {
+//考虑开了DEC2TWS_ENABLE不播提示音是情况
+#if !TCFG_DEC2TWS_ENABLE
+            audio_dac_try_power_on(&dac_hdl);
+#endif/*!TCFG_DEC2TWS_ENABLE*/
+        }
+    }
+}
+
+SYS_EVENT_HANDLER(SYS_BT_EVENT, tws_audio_event_handler, 4);
+#endif