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

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