C++ (Cpp) TBCNTR_XP示例

示例#1

文件： pxa930_trkball.c 项目： 12019/kernel_zte_u880

static irqreturn_t pxa930_trkball_interrupt(int irq, void *dev_id)
{
	struct pxa930_trkball *trkball = dev_id;
	struct input_dev *input = trkball->input;
	int tbcntr, x, y;

	/* According to the spec software must read TBCNTR twice:
	 * if the read value is the same, the reading is valid
	 */
	tbcntr = __raw_readl(trkball->mmio_base + TBCNTR);

	if (tbcntr == __raw_readl(trkball->mmio_base + TBCNTR)) {
		x = (TBCNTR_XP(tbcntr) - TBCNTR_XM(tbcntr)) / 2;
		y = (TBCNTR_YP(tbcntr) - TBCNTR_YM(tbcntr)) / 2;

		input_report_rel(input, REL_X, x);
		input_report_rel(input, REL_Y, y);
		input_sync(input);
	}

	__raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC);
	__raw_writel(0, trkball->mmio_base + TBSBC);

	return IRQ_HANDLED;
}

示例#2

文件： pxa930_trkball.c 项目： romanbb/android_kernel_lge_d851

static irqreturn_t pxa930_trkball_interrupt(int irq, void *dev_id)
{
	struct pxa930_trkball *trkball = dev_id;
	struct input_dev *input = trkball->input;
	int tbcntr, x, y;

	/*                                                       
                                                       
  */
	tbcntr = __raw_readl(trkball->mmio_base + TBCNTR);

	if (tbcntr == __raw_readl(trkball->mmio_base + TBCNTR)) {
		x = (TBCNTR_XP(tbcntr) - TBCNTR_XM(tbcntr)) / 2;
		y = (TBCNTR_YP(tbcntr) - TBCNTR_YM(tbcntr)) / 2;

		input_report_rel(input, REL_X, x);
		input_report_rel(input, REL_Y, y);
		input_sync(input);
	}

	__raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC);
	__raw_writel(0, trkball->mmio_base + TBSBC);

	return IRQ_HANDLED;
}