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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#include <stdio.h>
#include <rthw.h>
#include <rtdevice.h>
#include <rtthread.h>
#include <rtdevice.h>
/* uart driver */
struct console_uart
{
int rx_ready;
struct rt_ringbuffer rb;
rt_uint8_t rx_buffer[256];
} _console_uart;
static struct rt_serial_device _serial;
#define SAVEKEY(key) do { char ch = key; rt_ringbuffer_put_force(&(_console_uart.rb), &ch, 1); } while (0)
#ifdef _WIN32
#include <windows.h>
#include <mmsystem.h>
#include <conio.h>
extern int getch(void);
/*
* Handler for OSKey Thread
*/
static HANDLE OSKey_Thread;
static DWORD OSKey_ThreadID;
static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam);
void console_lowlevel_init(void)
{
/*
* create serial thread that receive key input from keyboard
*/
OSKey_Thread = CreateThread(NULL,
0,
(LPTHREAD_START_ROUTINE)ThreadforKeyGet,
0,
CREATE_SUSPENDED,
&OSKey_ThreadID);
if (OSKey_Thread == NULL)
{
//Display Error Message
return;
}
SetThreadPriority(OSKey_Thread,
THREAD_PRIORITY_NORMAL);
SetThreadPriorityBoost(OSKey_Thread,
TRUE);
SetThreadAffinityMask(OSKey_Thread,
0x01);
/*
* Start OS get key Thread
*/
ResumeThread(OSKey_Thread);
}
static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam)
#else /* POSIX version */
#include <pthread.h>
#include <semaphore.h>
#include <stdlib.h>
#include <signal.h>
#include <termios.h> /* for tcxxxattr, ECHO, etc */
#include <unistd.h> /* for STDIN_FILENO */
static void * ThreadforKeyGet(void * lpParam);
static pthread_t OSKey_Thread;
void console_lowlevel_init(void)
{
int res;
res = pthread_create(&OSKey_Thread, NULL, &ThreadforKeyGet, NULL);
if (res)
{
printf("pthread create faild, <%d>\n", res);
exit(EXIT_FAILURE);
}
}
static struct termios oldt, newt;
/*simulate windows' getch(), it works!!*/
static void set_stty(void)
{
/* get terminal input's attribute */
tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
/* set termios' local mode */
newt.c_lflag &= ~(ECHO|ICANON);
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
}
void restore_stty(void)
{
/* recover terminal's attribute */
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
}
#define getch getchar
static void * ThreadforKeyGet(void * lpParam)
#endif /* not _WIN32*/
{
/*
* left key(左)： 0xe04b
* up key(上)： 0xe048
* right key(右)： 0xe04d
* down key(下)： 0xe050
*/
unsigned char key;
#ifndef _WIN32
sigset_t sigmask, oldmask;
/* set the getchar without buffer */
sigfillset(&sigmask);
pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
set_stty();
#endif
(void)lpParam; //prevent compiler warnings
for (;;)
{
key = getch();
#ifdef _WIN32
if (key == 0xE0)
{
key = getch();
if (key == 0x48) //up key , 0x1b 0x5b 0x41
{
SAVEKEY(0x1b);
SAVEKEY(0x5b);
SAVEKEY(0x41);
}
else if (key == 0x50)//0x1b 0x5b 0x42
{
SAVEKEY(0x1b);
SAVEKEY(0x5b);
SAVEKEY(0x42);
}
else if (key == 0x4b)//<- 0x1b 0x5b 0x44
{
SAVEKEY(0x1b);
SAVEKEY(0x5b);
SAVEKEY(0x44);
}
else if (key == 0x4d)//<- 0x1b 0x5b 0x43
{
SAVEKEY(0x1b);
SAVEKEY(0x5b);
SAVEKEY(0x43);
}
continue;
}
#endif
SAVEKEY(key);
/* Notfiy serial ISR */
rt_hw_serial_isr(&_serial, RT_SERIAL_EVENT_RX_IND);
}
return RT_NULL;
} /*** ThreadforKeyGet ***/
static rt_err_t console_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
/* no baudrate, nothing */
return RT_EOK;
}
static rt_err_t console_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct console_uart* uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct console_uart *)serial->parent.user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
uart->rx_ready = 0;
break;
case RT_DEVICE_CTRL_SET_INT:
uart->rx_ready = 1;
break;
}
return RT_EOK;
}
static int console_putc(struct rt_serial_device *serial, char c)
{
int level;
RT_ASSERT(serial != RT_NULL);
#if 0 /* Enable it if you want to save the console log */
{
static FILE* fp = NULL;
if (fp == NULL)
fp = fopen("log.txt", "wb+");
if (fp != NULL)
fwrite(buffer, size, 1, fp);
}
#endif
level = rt_hw_interrupt_disable();
fwrite(&c, 1, 1, stdout);
fflush(stdout);
rt_hw_interrupt_enable(level);
return 1;
}
static int console_getc(struct rt_serial_device *serial)
{
char ch;
struct console_uart* uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct console_uart *)serial->parent.user_data;
if (rt_ringbuffer_getchar(&(uart->rb), &ch)) return ch;
return -1;
}
static const struct rt_uart_ops console_uart_ops =
{
console_configure,
console_control,
console_putc,
console_getc,
};
int uart_console_init(void)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
struct console_uart* uart;
struct rt_serial_device* serial;
uart = &_console_uart;
serial = &_serial;
uart->rx_ready = 0;
serial->ops = &console_uart_ops;
serial->config = config;
/* initialize ring buffer */
rt_ringbuffer_init(&uart->rb, uart->rx_buffer, sizeof(uart->rx_buffer));
/* register UART device */
rt_hw_serial_register(serial, "console",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
uart);
console_lowlevel_init();
return 0;
}
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