94 lines
1.6 KiB
C
94 lines
1.6 KiB
C
/* Reflow Oven Controller
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*
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* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The Reflow Oven Control Firmware is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stm-periph/uart.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <stddef.h>
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extern struct stm_uart shell_uart;
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char* _sbrk(int incr)
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{
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extern char heap_low; // Defined by the linker
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extern char heap_top;
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static char *heap_end;
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char *prev_heap_end;
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if (heap_end == 0) {
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heap_end = &heap_low;
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}
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prev_heap_end = heap_end;
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if (heap_end + incr > &heap_top) {
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errno = ENOMEM;
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return (char *)-1;
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}
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heap_end += incr;
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return (char *) prev_heap_end;
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}
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int _isatty(int fd)
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{
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(void)fd;
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return 1;
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}
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int _close(int fd)
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{
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(void)fd;
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return 0;
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}
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int _open(int fd)
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{
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(void)fd;
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return 0;
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}
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int _fstat(void)
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{
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return 0;
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}
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int _lseek(void)
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{
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return 0;
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}
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int _read(void)
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{
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return 0;
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}
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int _write(int fd, const void *buf, int count)
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{
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if (fd == 1)
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uart_send_array_with_dma(&shell_uart, (char *)buf, count);
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return count;
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}
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