MNRS-BM-BSP/libwrap/sys/write.c

60 lines
1.3 KiB
C

/* See LICENSE of license details. */
#include <errno.h>
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
#include "platform.h"
#include "semihosting.h"
#include "stub.h"
#include "weak_under_alias.h"
ssize_t __wrap_write(int fd, const void *ptr, size_t len) {
const uint8_t *current = (const uint8_t *)ptr;
#if defined(SEMIHOSTING)
if (isatty(fd)) {
for (size_t jj = 0; jj < len; jj++) {
sh_writec(current[jj]);
}
return len;
} else {
sh_write(current, fd);
return len;
}
// return len;
#endif
if (isatty(fd)) {
for (size_t jj = 0; jj < len; jj++) {
#if defined(BOARD_ehrenberg) || defined(BOARD_tgc_vp)
while (get_uart_rx_tx_reg_tx_free(uart) == 0)
;
uart_write(uart, current[jj]);
if (current[jj] == '\n') {
while (get_uart_rx_tx_reg_tx_free(uart) == 0)
;
uart_write(uart, '\r');
}
#elif defined(BOARD_iss)
*((uint32_t *)0xFFFF0000) = current[jj];
#elif defined(BOARD_TGCP)
// TODO: implement
#else
while (UART0_REG(UART_REG_TXFIFO) & 0x80000000)
;
UART0_REG(UART_REG_TXFIFO) = current[jj];
if (current[jj] == '\n') {
while (UART0_REG(UART_REG_TXFIFO) & 0x80000000)
;
UART0_REG(UART_REG_TXFIFO) = '\r';
}
#endif
}
return len;
}
return _stub(EBADF);
}
weak_under_alias(write);