Implement transparent printf support

This commit is contained in:
Vadim Kaushan 2020-09-10 21:55:10 +03:00
parent 0727e1560a
commit d39d2265e3
3 changed files with 35 additions and 2 deletions

View File

@ -1,3 +1,5 @@
#define _GNU_SOURCE
#include <stdio.h>
#include "furi.h"
#include "main.h"
@ -7,14 +9,43 @@ void handle_uart_write(const void* data, size_t size, void* ctx) {
HAL_UART_Transmit(&DEBUG_UART, (uint8_t*)data, (uint16_t)size, HAL_MAX_DELAY);
}
static ssize_t stdout_write(void *_cookie, const char *buf, size_t n) {
FuriRecordSubscriber *log = pvTaskGetThreadLocalStoragePointer(NULL, 0);
if (log == NULL) {
log = furi_open("tty", false, false, NULL, NULL, NULL);
vTaskSetThreadLocalStoragePointer(NULL, 0, log);
}
if (buf == 0) {
/*
* This means that we should flush internal buffers. Since we
* don't we just return. (Remember, "handle" == -1 means that all
* handles should be flushed.)
*/
return 0;
}
furi_write(log, buf, n);
return n;
}
bool register_tty_uart() {
if(!furi_create("tty", NULL, 0)) {
return false;
}
if(furi_open("tty", false, false, handle_uart_write, NULL, NULL) == NULL) {
return false;
}
FILE* fp = fopencookie(NULL, "w+", (cookie_io_functions_t) {
.read = NULL,
.write = stdout_write,
.seek = NULL,
.close = NULL,
});
setvbuf(fp, NULL, _IONBF, 0);
stdout = fp;
return true;
}
}

View File

@ -68,6 +68,7 @@
#define configQUEUE_REGISTRY_SIZE 8
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#define configUSE_COUNTING_SEMAPHORES 1
#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 1
/* Co-routine definitions. */
#define configUSE_CO_ROUTINES 0

View File

@ -68,6 +68,7 @@
#define configQUEUE_REGISTRY_SIZE 8
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#define configUSE_COUNTING_SEMAPHORES 1
#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 1
/* Co-routine definitions. */
#define configUSE_CO_ROUTINES 0