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freertos: use data source for btstack_uart_block_freertos_single_threaded.c

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This commit is contained in:
Matthias Ringwald 2017-04-20 22:47:53 +02:00
parent 14406c56cc
commit 7ef3b0106f
2 changed files with 34 additions and 17 deletions
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50
platform/freertos/btstack_uart_block_freertos_single_threaded.c
View File

@ -41,7 +41,7 @@
* btstack_uart_block_freertos.c
*
* Adapter to IRQ-driven hal_uart_dma.h with FreeRTOS BTstack Run Loop and
* Callbacks are executed on main thread via btstack_run_loop_freertos_single_threaded_execute_code_on_main_thread()
* Callbacks are executed on main thread via data source and btstack_run_loop_freertos_trigger_from_isr
*
*/
@ -53,30 +53,41 @@
// uart config
static const btstack_uart_config_t * uart_config;
// data source for integration with BTstack Runloop
static btstack_data_source_t transport_data_source;
// callbacks
static void (*block_sent)(void);
static void (*block_received)(void);
static int send_complete;
static int receive_complete;
// called from main thread context
static void btstack_uart_block_received_thread(void * arg){
UNUSED(arg);
block_received();
}
static void btstack_uart_block_sent_thread(void * arg){
UNUSED(arg);
block_sent();
}
// called from ISR context
static void btstack_uart_block_received_isr(void){
btstack_run_loop_freertos_single_threaded_execute_code_on_main_thread_from_isr(&btstack_uart_block_received_thread, NULL);
receive_complete = 1;
btstack_run_loop_freertos_trigger_from_isr();
}
static void btstack_uart_block_sent_isr(void){
// notify upper stack that provided buffer can be used again
btstack_run_loop_freertos_single_threaded_execute_code_on_main_thread_from_isr(&btstack_uart_block_sent_thread, NULL);
send_complete = 1;
btstack_run_loop_freertos_trigger_from_isr();
}
static void btstack_uart_block_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type) {
switch (callback_type){
case DATA_SOURCE_CALLBACK_POLL:
if (send_complete){
send_complete = 0;
block_sent();
}
if (receive_complete){
receive_complete = 0;
block_received();
}
break;
default:
break;
}
}
//
@ -84,6 +95,11 @@ static int btstack_uart_block_init(const btstack_uart_config_t * config){
uart_config = config;
hal_uart_dma_set_block_received(&btstack_uart_block_received_isr);
hal_uart_dma_set_block_sent(&btstack_uart_block_sent_isr);
// set up polling data_source
btstack_run_loop_set_data_source_handler(&transport_data_source, &btstack_uart_block_process);
btstack_run_loop_enable_data_source_callbacks(&transport_data_source, DATA_SOURCE_CALLBACK_POLL);
btstack_run_loop_add_data_source(&transport_data_source);
return 0;
}
@ -132,6 +148,6 @@ static const btstack_uart_block_t btstack_uart_embedded = {
/* void (*set_sleep)(btstack_uart_sleep_mode_t sleep_mode); */ NULL
};
const btstack_uart_block_t * btstack_uart_block_embedded_instance(void){
const btstack_uart_block_t * btstack_uart_block_freertos_single_threaded_instance(void){
return &btstack_uart_embedded;
}

1
src/btstack_uart_block.h
View File

@ -144,5 +144,6 @@ typedef struct {
const btstack_uart_block_t * btstack_uart_block_posix_instance(void);
const btstack_uart_block_t * btstack_uart_block_windows_instance(void);
const btstack_uart_block_t * btstack_uart_block_embedded_instance(void);
const btstack_uart_block_t * btstack_uart_block_freertos_single_threaded_instance(void);
#endif