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