113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018, hathach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include "board.h"
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//--------------------------------------------------------------------+
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// newlib read()/write() retarget
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//--------------------------------------------------------------------+
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#ifdef __ICCARM__
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#define sys_write __write
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#define sys_read __read
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#elif defined(__MSP430__) || defined(__RX__)
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#define sys_write write
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#define sys_read read
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#else
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#define sys_write _write
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#define sys_read _read
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#endif
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#if defined(LOGGER_RTT)
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// Logging with RTT
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// If using SES IDE, use the Syscalls/SEGGER_RTT_Syscalls_SES.c instead
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#if !(defined __SES_ARM) && !(defined __SES_RISCV) && !(defined __CROSSWORKS_ARM)
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#include "SEGGER_RTT.h"
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TU_ATTR_USED int sys_write (int fhdl, const void *buf, size_t count)
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{
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(void) fhdl;
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SEGGER_RTT_Write(0, (const char*) buf, (int) count);
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return count;
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}
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TU_ATTR_USED int sys_read (int fhdl, char *buf, size_t count)
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{
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(void) fhdl;
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int rd = (int) SEGGER_RTT_Read(0, buf, count);
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return (rd > 0) ? rd : -1;
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}
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#endif
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#elif defined(LOGGER_SWO)
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// Logging with SWO for ARM Cortex
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#include "board_mcu.h"
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TU_ATTR_USED int sys_write (int fhdl, const void *buf, size_t count)
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{
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(void) fhdl;
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uint8_t const* buf8 = (uint8_t const*) buf;
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for(size_t i=0; i<count; i++) {
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ITM_SendChar(buf8[i]);
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}
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return (int) count;
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}
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TU_ATTR_USED int sys_read (int fhdl, char *buf, size_t count)
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{
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(void) fhdl;
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(void) buf;
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(void) count;
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return 0;
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}
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#else
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// Default logging with on-board UART
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TU_ATTR_USED int sys_write (int fhdl, const void *buf, size_t count)
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{
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(void) fhdl;
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return board_uart_write(buf, (int) count);
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}
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TU_ATTR_USED int sys_read (int fhdl, char *buf, size_t count)
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{
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(void) fhdl;
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int rd = board_uart_read((uint8_t*) buf, (int) count);
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return (rd > 0) ? rd : -1;
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}
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#endif
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int board_getchar(void)
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{
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char c;
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return ( sys_read(0, &c, 1) > 0 ) ? (int) c : (-1);
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}
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