Subversion Repositories or1k_old

#include <linux/module.h>

#include <linux/ptrace.h>

#include <linux/interrupt.h>

#include <linux/sched.h>

#include <asm/hardware.h>

#include <asm/irq.h>

#include <asm/io.h>

#include "mouse.h"

static short old_x, old_y, old_b;

void mouse_rpc_irq (int irq, void *dev_id, struct pt_regs *regs)

{

        short x, y, b, dx, dy, db;

        x = (short)inl(IOMD_MOUSEX);

        y = (short)inl(IOMD_MOUSEY);

        b = (inl (0x800C4000) >> 4) & 7;

        dx = x - old_x;

        old_x = x;

        dy = y - old_y;

        old_y = y;

        db = b ^ old_b;

        old_b = b;

        if (dx || dy)

                add_mouse_movement(dx, dy);

        if (db)

                add_mouse_buttonchange(7, b);

}

void mouse_rpc_init(void)

{

        old_x = (short)inl(IOMD_MOUSEX);

        old_y = (short)inl(IOMD_MOUSEY);

        old_b = (inl (0x800C4000) >> 4) & 7;

        request_irq (IRQ_VSYNCPULSE, mouse_rpc_irq, SA_SHIRQ, "mouse", NULL);

}