106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
/*
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* I/O and interface portion of GDB stub
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*
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* File : hal_stub.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006, RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2014-07-04 Wzyy2 first version
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include "gdb_stub.h"
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#ifdef RT_USING_SERIAL
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#include <rtdevice.h>
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#endif
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rt_device_t gdb_dev = RT_NULL;
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static struct rt_serial_device *gdb_serial;
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char gdb_io_set;
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void gdb_uart_putc(char c);
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int gdb_uart_getc();
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/*if you want to use something instead of the serial,change it */
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struct gdb_io gdb_io_ops = {
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gdb_uart_getc,
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gdb_uart_putc
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};
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/**
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* @ingroup gdb_stub
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*
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* This function will get GDB stubs started, with a proper environment
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*/
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void gdb_start()
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{
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if (gdb_dev == RT_NULL)
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rt_kprintf("GDB: no gdb_dev found,please set it first\n");
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else
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gdb_breakpoint();
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}
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/**
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* @ingroup gdb_stub
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*
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* This function sets the input device of gdb_stub.
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*
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* @param device_name the name of new input device.
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*/
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void gdb_set_device(const char* device_name)
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{
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rt_device_t dev = RT_NULL;
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dev = rt_device_find(device_name);
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if(dev == RT_NULL){
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rt_kprintf("GDB: can not find device: %s\n", device_name);
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return;
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}
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/* open this device and set the new device */
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if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_STREAM) == RT_EOK)
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{
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gdb_dev = dev;
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gdb_serial = (struct rt_serial_device *)gdb_dev;
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}
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}
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void gdb_uart_putc(char c)
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{
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#ifdef RT_GDB_DEBUG
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rt_kprintf("%c",c);
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#endif
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rt_device_write(gdb_dev, 0, &c, 1);
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}
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/* polling */
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int gdb_uart_getc()
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{
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int ch;
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#ifdef RT_USING_SERIAL
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ch = -1;
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do {
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ch = gdb_serial->ops->getc(gdb_serial);
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} while (ch == -1);
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#else
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rt_device_read(gdb_dev, 0, &ch, 1);
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#endif
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#ifdef RT_GDB_DEBUG
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rt_kprintf("%c",ch);
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#endif
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return ch;
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}
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