C++ (Cpp) ATIXL_MSE_ENABLE_UPDATE示例

示例#1

static ssize_t read_mouse(struct file * file, char * buffer,
       size_t count, loff_t *ppos)
{
       ssize_t i;

	if (count < 3)
		return -EINVAL;
	if (!mouse.ready)
		return -EAGAIN;
	ATIXL_MSE_DISABLE_UPDATE();
	/* Allowed interrupts to occur during data gathering - shouldn't hurt */
	put_user((char)(~mouse.latch_buttons&7) | 0x80 , buffer);
	if (mouse.dx < -127)
		mouse.dx = -127;
	if (mouse.dx > 127)
		mouse.dx =  127;
	put_user((char)mouse.dx, buffer + 1);
	if (mouse.dy < -127)
		mouse.dy = -127;
	if (mouse.dy > 127)
		mouse.dy =  127;
	put_user((char)-mouse.dy, buffer + 2);
	for(i = 3; i < count; i++)
		put_user(0x00, buffer + i);
	mouse.dx = 0;
	mouse.dy = 0;
	mouse.latch_buttons = mouse.buttons;
	mouse.ready = 0;
	ATIXL_MSE_ENABLE_UPDATE();
	return i; /* i data bytes returned */
}

示例#2

文件： atixlmouse.c 项目： chinnyannieb/empeg-hijack

void mouse_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
	char dx, dy, buttons;

	ATIXL_MSE_DISABLE_UPDATE(); /* Note that interrupts are still enabled */
	outb(ATIXL_MSE_READ_X, ATIXL_MSE_CONTROL_PORT); /* Select IR1 - X movement */
	dx = inb( ATIXL_MSE_DATA_PORT);
	outb(ATIXL_MSE_READ_Y, ATIXL_MSE_CONTROL_PORT); /* Select IR2 - Y movement */
	dy = inb( ATIXL_MSE_DATA_PORT);
	outb(ATIXL_MSE_READ_BUTTONS, ATIXL_MSE_CONTROL_PORT); /* Select IR0 - Button Status */
	buttons = inb( ATIXL_MSE_DATA_PORT);
	busmouse_add_movementbuttons(msedev, dx, -dy, buttons);
	ATIXL_MSE_ENABLE_UPDATE();
}

示例#3

文件： atixlmouse.c 项目： Lakshmipathi/Linux-historic

void mouse_interrupt(int unused)
{
	char dx, dy, buttons;

	ATIXL_MSE_DISABLE_UPDATE(); /* Note that interrupts are still enabled */
	outb(ATIXL_MSE_READ_X, ATIXL_MSE_CONTROL_PORT); /* Select IR1 - X movement */
	dx = inb( ATIXL_MSE_DATA_PORT);
	outb(ATIXL_MSE_READ_Y, ATIXL_MSE_CONTROL_PORT); /* Select IR2 - Y movement */
	dy = inb( ATIXL_MSE_DATA_PORT);
	outb(ATIXL_MSE_READ_BUTTONS, ATIXL_MSE_CONTROL_PORT); /* Select IR0 - Button Status */
	buttons = inb( ATIXL_MSE_DATA_PORT);
	if (dx != 0 || dy != 0 || buttons != mouse.latch_buttons) {
		mouse.latch_buttons |= buttons;
		mouse.dx += dx;
		mouse.dy += dy;
		mouse.ready = 1;
		wake_up_interruptible(&mouse.wait);
	}
	ATIXL_MSE_ENABLE_UPDATE();
}

示例#4

void mouse_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
	char dx, dy, buttons;

	ATIXL_MSE_DISABLE_UPDATE(); /* Note that interrupts are still enabled */
	outb(ATIXL_MSE_READ_X, ATIXL_MSE_CONTROL_PORT); /* Select IR1 - X movement */
	dx = inb( ATIXL_MSE_DATA_PORT);
	outb(ATIXL_MSE_READ_Y, ATIXL_MSE_CONTROL_PORT); /* Select IR2 - Y movement */
	dy = inb( ATIXL_MSE_DATA_PORT);
	outb(ATIXL_MSE_READ_BUTTONS, ATIXL_MSE_CONTROL_PORT); /* Select IR0 - Button Status */
	buttons = inb( ATIXL_MSE_DATA_PORT);
	if (dx != 0 || dy != 0 || buttons != mouse.latch_buttons) {
		add_mouse_randomness((buttons << 16) + (dy << 8) + dx);
		mouse.latch_buttons |= buttons;
		mouse.dx += dx;
		mouse.dy += dy;
		mouse.ready = 1;
		wake_up_interruptible(&mouse.wait);
		if (mouse.fasync)
			kill_fasync(mouse.fasync, SIGIO);
	}
	ATIXL_MSE_ENABLE_UPDATE();
}