nixCraft

module.c:
//*******************************************
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
//-----------------------------------------------------------
#define MODULE
#define __KERNEL__
//-----------------------------------------------------------
MODULE_AUTHOR("Oligarch");
MODULE_DESCRIPTION("Kernel module");
//-----------------------------------------------------------
static irqreturn_t ISI_interrupt(int irq, void * dev_id)
{
    return IRQ_HANDLED;
}
//-----------------------------------------------------------
int init_module()
{
    printk("Kernel: Module startup\n");
    return 0;
}
//-----------------------------------------------------------
void cleanup_module()
{
    printk("Kernel: Module quit\n");
    return;
}
//-----------------------------------------------------------
//*******************************************

regs_map.c
//*******************************************
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
//-------------------------------------------------
#define ISI_MAP_SIZE 4096Ul
#define ISI_MAP_MASK (ISI_MAP_SIZE - 1)
#define ISI_BASE 0xFFFC0000
//-------------------------------------------------
typedef volatile unsigned int AT91_REG;
//-------------------------------------------------
typedef struct _AT91S_ISI {
    AT91_REG ISI_CR1;
    AT91_REG ISI_CR2;
    AT91_REG ISI_SR;
    AT91_REG ISI_IER;
    AT91_REG ISI_IDR;
    AT91_REG ISI_IMR;
    AT91_REG reserved1;
    AT91_REG reserved2;
    AT91_REG ISI_PSIZE;
    AT91_REG ISI_PDECF;
    AT91_REG ISI_PPFBD;
    AT91_REG ISI_CDBA;
    AT91_REG ISI_Y2R_SET0;
    AT91_REG ISI_Y2R_SET1;
    AT91_REG ISI_R2Y_SET0;
    AT91_REG ISI_R2Y_SET1;
    AT91_REG ISI_R2Y_SET2;
} AT91S_ISI, *AT91PS_ISI;
//-------------------------------------------------
AT91PS_ISI isi;
//-------------------------------------------------
AT91S_ISI * isi_map(unsigned int isibase)
{
    int fd;
    void * base;
    AT91S_ISI * _isi;
    off_t addr=isibase;
    if ((fd=open("/dev/mem",O_RDWR|O_SYNC))==-1){fprintf(stderr,"Cannot open ISI /dev/mem.\n");exit(EXIT_FAILURE);}
    base=mmap(0,ISI_MAP_SIZE,PROT_READ|PROT_WRITE,MAP_SHARED,fd,addr&~ISI_MAP_MASK);
    if(base==(void *)-1){fprintf(stderr, "Cannot ISI mmap.\n");exit(EXIT_FAILURE);}
    _isi=base+(addr&ISI_MAP_MASK);
    return _isi;
}
//-------------------------------------------------

//*******************************************

obj-m := module.o
KDIR  := /lib/modules/2.6.24/build
PWD   := $(shell pwd)
CC    := /home/sedyshev/arm-2007q1/bin/arm-none-linux-gnueabi-gcc
TOOLCHAIN=/home/sedyshev/arm-2007q1/bin/arm-none-linux-gnueabi-
default:
    $(MAKE) CROSS_COMPILE=$(TOOLCHAIN) ARCH=arm -C $(KDIR) M=$(PWD) modules