unleashed-firmware/applications/wifi_marauder_companion/wifi_marauder_uart.c
2022-07-29 19:34:41 +03:00

98 lines
No EOL
3 KiB
C

#include "wifi_marauder_app_i.h"
#include "wifi_marauder_uart.h"
#include <stream_buffer.h>
#define UART_CH (FuriHalUartIdUSART1)
#define BAUDRATE (115200)
struct WifiMarauderUart {
WifiMarauderApp* app;
FuriThread* rx_thread;
StreamBufferHandle_t rx_stream;
uint8_t rx_buf[RX_BUF_SIZE + 1];
void (*handle_rx_data_cb)(uint8_t* buf, size_t len, void* context);
};
typedef enum {
WorkerEvtStop = (1 << 0),
WorkerEvtRxDone = (1 << 1),
} WorkerEvtFlags;
void wifi_marauder_uart_set_handle_rx_data_cb(
WifiMarauderUart* uart,
void (*handle_rx_data_cb)(uint8_t* buf, size_t len, void* context)) {
furi_assert(uart);
uart->handle_rx_data_cb = handle_rx_data_cb;
}
#define WORKER_ALL_RX_EVENTS (WorkerEvtStop | WorkerEvtRxDone)
void wifi_marauder_uart_on_irq_cb(UartIrqEvent ev, uint8_t data, void* context) {
WifiMarauderUart* uart = (WifiMarauderUart*)context;
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
if(ev == UartIrqEventRXNE) {
xStreamBufferSendFromISR(uart->rx_stream, &data, 1, &xHigherPriorityTaskWoken);
furi_thread_flags_set(furi_thread_get_id(uart->rx_thread), WorkerEvtRxDone);
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
}
}
static int32_t uart_worker(void* context) {
WifiMarauderUart* uart = (void*)context;
uart->rx_stream = xStreamBufferCreate(RX_BUF_SIZE, 1);
while(1) {
uint32_t events =
furi_thread_flags_wait(WORKER_ALL_RX_EVENTS, FuriFlagWaitAny, FuriWaitForever);
furi_check((events & FuriFlagError) == 0);
if(events & WorkerEvtStop) break;
if(events & WorkerEvtRxDone) {
size_t len = xStreamBufferReceive(uart->rx_stream, uart->rx_buf, RX_BUF_SIZE, 0);
if(len > 0) {
if(uart->handle_rx_data_cb) uart->handle_rx_data_cb(uart->rx_buf, len, uart->app);
}
}
}
vStreamBufferDelete(uart->rx_stream);
return 0;
}
void wifi_marauder_uart_tx(uint8_t* data, size_t len) {
furi_hal_uart_tx(UART_CH, data, len);
}
WifiMarauderUart* wifi_marauder_uart_init(WifiMarauderApp* app) {
WifiMarauderUart* uart = malloc(sizeof(WifiMarauderUart));
furi_hal_console_disable();
furi_hal_uart_set_br(UART_CH, BAUDRATE);
furi_hal_uart_set_irq_cb(UART_CH, wifi_marauder_uart_on_irq_cb, uart);
uart->app = app;
uart->rx_thread = furi_thread_alloc();
furi_thread_set_name(uart->rx_thread, "WifiMarauderUartRxThread");
furi_thread_set_stack_size(uart->rx_thread, 1024);
furi_thread_set_context(uart->rx_thread, uart);
furi_thread_set_callback(uart->rx_thread, uart_worker);
furi_thread_start(uart->rx_thread);
return uart;
}
void wifi_marauder_uart_free(WifiMarauderUart* uart) {
furi_assert(uart);
furi_thread_flags_set(furi_thread_get_id(uart->rx_thread), WorkerEvtStop);
furi_thread_join(uart->rx_thread);
furi_thread_free(uart->rx_thread);
furi_hal_uart_set_irq_cb(UART_CH, NULL, NULL);
furi_hal_console_enable();
free(uart);
}