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Add a starting point for a Freedom Studio Risc V project.

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This commit is contained in:
Richard Barry 2018-11-24 03:48:55 +00:00
parent db64297487
commit f7102f2342
58 changed files with 6836 additions and 0 deletions
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32
FreeRTOS/Demo/RISC-V-Qemu-sifive_e-FreedomStudio/freedom-e-sdk/libwrap/sys/read.c Normal file
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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"
ssize_t __wrap_read(int fd, void* ptr, size_t len)
{
uint8_t * current = (uint8_t *)ptr;
volatile uint32_t * uart_rx = (uint32_t *)(UART0_CTRL_ADDR + UART_REG_RXFIFO);
volatile uint8_t * uart_rx_cnt = (uint8_t *)(UART0_CTRL_ADDR + UART_REG_RXCTRL + 2);
ssize_t result = 0;
if (isatty(fd)) {
for (current = (uint8_t *)ptr;
(current < ((uint8_t *)ptr) + len) && (*uart_rx_cnt > 0);
current ++) {
*current = *uart_rx;
result++;
}
return result;
}
return _stub(EBADF);
}
weak_under_alias(read);