Exemplos de msm_io_r_mb em C++ (Cpp)

Exemplo n.º 1

static irqreturn_t vpe_parse_irq(int irq_num, void *data)
{
	vpe_ctrl->irq_status = msm_io_r_mb(vpe_ctrl->vpebase +
							VPE_INTR_STATUS_OFFSET);
	msm_io_w_mb(vpe_ctrl->irq_status, vpe_ctrl->vpebase +
				VPE_INTR_CLEAR_OFFSET);
	msm_io_w(0, vpe_ctrl->vpebase + VPE_INTR_ENABLE_OFFSET);
	CDBG("%s: vpe_parse_irq =0x%x.\n", __func__, vpe_ctrl->irq_status);
	tasklet_schedule(&vpe_tasklet);
	return IRQ_HANDLED;
}

Exemplo n.º 2

Arquivo: msm_vpe1.c Projeto: R-N/boston-2.6.32.x

static irqreturn_t vpe_parse_irq(int irq_num, void *data)
{
	unsigned long flags;
	uint32_t irq_status = 0;
	struct vpe_isr_queue_cmd_type *qcmd;

	CDBG("vpe_parse_irq.\n");
	/* read and clear back-to-back. */
	irq_status = msm_io_r_mb(vpe_device->vpebase +
							VPE_INTR_STATUS_OFFSET);
	msm_io_w_mb(irq_status, vpe_device->vpebase +
				VPE_INTR_CLEAR_OFFSET);

	msm_io_w(0, vpe_device->vpebase + VPE_INTR_ENABLE_OFFSET);

	if (irq_status == 0) {
		printk(KERN_ERR "vpe_parse_irq: irq_status = 0"
						"!!!! Something is wrong!\n");
		return IRQ_HANDLED;
	}
	irq_status &= 0x1;
	/* apply mask. only interested in bit 0.  */
	if (irq_status) {
		qcmd = kzalloc(sizeof(struct vpe_isr_queue_cmd_type),
			GFP_ATOMIC);
		if (!qcmd) {
			CDBG("vpe_parse_irq: qcmd malloc failed!\n");
			return IRQ_HANDLED;
		}
		/* must be 0x1 now. so in bottom half we don't really
		need to check. */
		qcmd->irq_status = irq_status & 0x1;
		spin_lock_irqsave(&vpe_ctrl->tasklet_lock, flags);
		list_add_tail(&qcmd->list, &vpe_ctrl->tasklet_q);
		spin_unlock_irqrestore(&vpe_ctrl->tasklet_lock, flags);
		tasklet_schedule(&vpe_tasklet);
	}
	return IRQ_HANDLED;
}