board.c.svn-base

RT-Thread是发展中的下一代微内核嵌入式实时操作系统

/*
 * File      : board.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006, RT-Thread Develop Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://openlab.rt-thread.com/license/LICENSE.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2006-10-25     Bernard      first implementation
 */

#include <rtthread.h>
#include <rthw.h>

#include <pxa270.h>
#include "board.h"

/**
 * @addtogroup PXA270
 */
/*@{*/

void rt_timer_handler(int vector)
{
	rt_tick_increase();
}

/**
 * @brief init zaurus c1000
 *
 * This function will init zaurus c1000
 */
void rt_hw_board_init()
{
	/* setup MMU for led */
	
	/* setup MMU for vectos */
	
	/* clear OS Timer counter4 */
    PXA2X0_OST_OSCR4 = 0x00000000;
	/* set OS Timer match4 */
	PXA2X0_OST_OSMR4 = CLK4_TIMER_FREQUENCY / RT_TICK_PER_SECOND;
	/* set OS Timer match control */
	PXA2X0_OST_OMCR4 = 0xc1;	/* periodic timer & 32768Hz */
	
	PXA2X0_OST_OSSR = 0x3f;		/* clear all OS Timer status */
	PXA2X0_OST_OIER = 0x10;		/* enable OSMR4 interrupt */
	
	/* install interrupt handler */
	rt_hw_interrupt_install(PXA2X0_INT_OST, rt_timer_handler, RT_NULL);
	rt_hw_interrupt_umask(PXA2X0_INT_OST);
}

#define C1K_SCOOP_BASE 0x10800000
#define GPIOWP	0x24

/** 
 * @param on, which led is operated, green or orange
 */
void rt_hw_led_set(rt_uint32 enable)
{
	volatile unsigned short *p;

	p = (unsigned short*) (0x10800000 + 0x24);
	if (enable)
	{
		*p = *p | (1 << 1);
	}
	else
	{
		*p = *p & (~(1 << 1));
	}
}

void rt_hw_led_flash(void)
{
	int i;

	rt_hw_led_set(1);
	for ( i = 0; i < 1000000; i++);
	rt_hw_led_set(0);
	for ( i = 0; i < 1000000; i++);
}

#ifdef RT_USING_FINSH
extern void finsh_notify(void);
void rt_serial_isr(int vector)
{
	finsh_notify();
}

void rt_hw_finsh_init()
{
	/* install keyboard isr */
}

#endif

/*@}*/