70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
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/*
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* File : board.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006, RT-Thread Development 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.fayfayspace.org/license/LICENSE.
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*
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* Change Logs:
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* Date Author Notes
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* 2006-09-15 QiuYi the first version
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* 2006-10-10 Bernard add hardware related of finsh
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include <bsp.h>
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/**
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* @addtogroup QEMU
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*/
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/*@{*/
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static void rt_timer_handler(int vector)
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{
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rt_tick_increase();
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}
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/**
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* This function will init QEMU
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*
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*/
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void rt_hw_board_init(void)
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{
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/* initialize 8253 clock to interrupt 100 times/sec */
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(IO_TIMER1, TIMER_DIV(100) % 256);
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outb(IO_TIMER1, TIMER_DIV(100) / 256);
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/* install interrupt handler */
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rt_hw_interrupt_install(INTTIMER0, rt_timer_handler, RT_NULL);
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rt_hw_interrupt_umask(INTTIMER0);
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}
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#ifdef RT_USING_FINSH
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extern void finsh_notify(void);
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static void rt_serial_isr(int vector)
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{
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finsh_notify();
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}
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/**
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* This function will init hardware related in finsh shell
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*/
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void rt_hw_finsh_init()
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{
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/* install UART isr */
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rt_hw_interrupt_install(INTUART0_RX, rt_serial_isr, RT_NULL);
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rt_hw_interrupt_umask(INTUART0_RX);
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/* install keyboard isr */
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rt_hw_interrupt_install(INTKEYBOARD, rt_serial_isr, RT_NULL);
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rt_hw_interrupt_umask(INTKEYBOARD);
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}
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#endif
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/*@}*/
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