esp-idf/examples/09_a2dp/components/bluedroid_demos/btif/stack_manager.c
wangmengyang 2e8af3a8b7 component/bt: fix typos and complier errors of the merged code
1. format the source code of A2DP sample
2. fix some compiler errors and warnings
2016-11-26 13:09:55 +08:00

160 lines
4.3 KiB
C

#include <stdbool.h>
#include <stdint.h>
#include "btif_stack_manager.h"
#include "stack_manager.h"
#include "bt_defs.h"
#include "bt_trace.h"
#include "future.h"
#include "btif_common.h"
#include "btif_api.h"
#include "btif_dm.h"
/************************************************************************************
** Constants & Macros
************************************************************************************/
/************************************************************************************
** Local type definitions
************************************************************************************/
/************************************************************************************
** Static variables
************************************************************************************/
static bool stack_is_initialized = false;
static bool stack_is_running = false;
static bt_callbacks_t *bt_hal_cbacks = NULL;
static future_t *hack_future = NULL;
static bt_status_t event_init_stack(bt_callbacks_t *cb);
static bt_status_t event_start_up_stack(void);
static bt_status_t event_shut_down_stack(void);
static bt_status_t event_clean_up_stack(void);
static void event_signal_stack_up(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param);
static void event_signal_stack_down(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param);
static bt_status_t event_init_stack(bt_callbacks_t *cb)
{
bt_status_t ret;
if (!stack_is_initialized) {
hack_future = future_new();
ret = btif_init_bluetooth();
if (future_await(hack_future) != FUTURE_SUCCESS) {
return BT_STATUS_FAIL;
}
if (ret == BT_STATUS_SUCCESS) {
bt_hal_cbacks = cb;
stack_is_initialized = true;
}
return ret;
} else {
return BT_STATUS_DONE;
}
}
static bt_status_t event_start_up_stack(void)
{
if (!stack_is_initialized) {
LOG_DEBUG("%s stack not initialized yet.\n", __func__);
return BT_STATUS_NOT_READY;
}
if (stack_is_running) {
LOG_DEBUG("%s stack already brought up.\n", __func__);
return BT_STATUS_DONE;
}
LOG_DEBUG("%s is bringing up the stack.\n", __func__);
hack_future = future_new();
btif_enable_bluetooth();
if (future_await(hack_future) != FUTURE_SUCCESS) {
stack_is_running = true; // So stack shutdown actually happens
event_shut_down_stack();
return BT_STATUS_FAIL;
}
stack_is_running = true;
LOG_DEBUG("%s finished\n", __func__);
btif_transfer_context(event_signal_stack_up, 0, NULL, 0, NULL);
return BT_STATUS_SUCCESS;
}
static bt_status_t event_shut_down_stack(void)
{
if (!stack_is_running) {
LOG_DEBUG("%s stack is already brought down.\n", __func__);
return BT_STATUS_DONE;
}
LOG_DEBUG("%s is bringing down the stack.\n", __func__);
hack_future = future_new();
stack_is_running = false;
btif_disable_bluetooth();
future_await(hack_future);
LOG_DEBUG("%s finished.\n", __func__);
btif_transfer_context(event_signal_stack_down, 0, NULL, 0, NULL);
return BT_STATUS_SUCCESS;
}
static bt_status_t event_clean_up_stack(void)
{
if (!stack_is_initialized) {
LOG_DEBUG("%s found the stack already in a clean state.\n", __func__);
return BT_STATUS_DONE;
}
if (stack_is_running) {
event_shut_down_stack();
}
LOG_DEBUG("%s is cleaning up the stack.\n", __func__);
stack_is_initialized = false;
btif_shutdown_bluetooth();
return BT_STATUS_SUCCESS;
}
static void event_signal_stack_up(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param)
{
HAL_CBACK(bt_hal_cbacks, adapter_state_changed_cb, BT_STATE_ON);
}
static void event_signal_stack_down(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param)
{
HAL_CBACK(bt_hal_cbacks, adapter_state_changed_cb, BT_STATE_OFF);
}
bt_status_t BTIF_InitStack(bt_callbacks_t *cb)
{
return event_init_stack(cb);
}
bt_status_t BTIF_EnableStack(void)
{
return event_start_up_stack();
}
bt_status_t BTIF_DisableStack(void)
{
return event_shut_down_stack();
}
bt_status_t BTIF_CleanUpStack(void)
{
return event_clean_up_stack();
}
bool stack_manager_is_stack_running(void)
{
return stack_is_running;
}
future_t *stack_manager_get_hack_future(void)
{
return hack_future;
}