C++ (Cpp) ROT_STATUS_IRQ_PENDING示例

示例#1

文件： exynos_drm_rotator.c 项目： 3null/linux

static irqreturn_t rotator_irq_handler(int irq, void *arg)
{
	struct rot_context *rot = arg;
	struct exynos_drm_ippdrv *ippdrv = &rot->ippdrv;
	struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
	struct drm_exynos_ipp_event_work *event_work = c_node->event_work;
	enum rot_irq_status irq_status;
	u32 val;

	/* Get execution result */
	irq_status = rotator_reg_get_irq_status(rot);

	/* clear status */
	val = rot_read(ROT_STATUS);
	val |= ROT_STATUS_IRQ_PENDING((u32)irq_status);
	rot_write(val, ROT_STATUS);

	if (irq_status == ROT_IRQ_STATUS_COMPLETE) {
		event_work->ippdrv = ippdrv;
		event_work->buf_id[EXYNOS_DRM_OPS_DST] =
			rot->cur_buf_id[EXYNOS_DRM_OPS_DST];
		queue_work(ippdrv->event_workq, &event_work->work);
	} else {
		DRM_ERROR("the SFR is set illegally\n");
	}

	return IRQ_HANDLED;
}

示例#2

static void rotator_reg_set_irq_status_clear(struct rot_context *rot,
						enum rot_irq_status status)
{
	u32 value = readl(rot->regs + ROT_STATUS);

	value |= ROT_STATUS_IRQ_PENDING((u32)status);

	writel(value, rot->regs + ROT_STATUS);
}