/*
* omap4iss_csi2_isr - CSI2 interrupt handling.
*
* Return -EIO on Transmission error
*/
int omap4iss_csi2_isr(struct iss_csi2_device *csi2)
{
u32 csi2_irqstatus, cpxio1_irqstatus;
struct iss_device *iss = csi2->iss;
int retval = 0;
if (!csi2->available)
return -ENODEV;
csi2_irqstatus = readl(csi2->regs1 + CSI2_IRQSTATUS);
writel(csi2_irqstatus, csi2->regs1 + CSI2_IRQSTATUS);
/* Failure Cases */
if (csi2_irqstatus & CSI2_IRQ_COMPLEXIO_ERR) {
cpxio1_irqstatus = readl(csi2->regs1 +
CSI2_COMPLEXIO_IRQSTATUS);
writel(cpxio1_irqstatus,
csi2->regs1 + CSI2_COMPLEXIO_IRQSTATUS);
dev_dbg(iss->dev, "CSI2: ComplexIO Error IRQ "
"%x\n", cpxio1_irqstatus);
retval = -EIO;
}
if (csi2_irqstatus & (CSI2_IRQ_OCP_ERR |
CSI2_IRQ_SHORT_PACKET |
CSI2_IRQ_ECC_NO_CORRECTION |
CSI2_IRQ_COMPLEXIO_ERR |
CSI2_IRQ_FIFO_OVF)) {
dev_dbg(iss->dev, "CSI2 Err:"
" OCP:%d,"
" Short_pack:%d,"
" ECC:%d,"
" CPXIO:%d,"
" FIFO_OVF:%d,"
"\n",
(csi2_irqstatus &
CSI2_IRQ_OCP_ERR) ? 1 : 0,
(csi2_irqstatus &
CSI2_IRQ_SHORT_PACKET) ? 1 : 0,
(csi2_irqstatus &
CSI2_IRQ_ECC_NO_CORRECTION) ? 1 : 0,
(csi2_irqstatus &
CSI2_IRQ_COMPLEXIO_ERR) ? 1 : 0,
(csi2_irqstatus &
CSI2_IRQ_FIFO_OVF) ? 1 : 0);
retval = -EIO;
}
if (omap4iss_module_sync_is_stopping(&csi2->wait, &csi2->stopping))
return 0;
/* Successful cases */
if (csi2_irqstatus & CSI2_IRQ_CONTEXT0)
csi2_isr_ctx(csi2, &csi2->contexts[0]);
if (csi2_irqstatus & CSI2_IRQ_ECC_CORRECTION)
dev_dbg(iss->dev, "CSI2: ECC correction done\n");
return retval;
}
/*
* omap3isp_csi2_isr - CSI2 interrupt handling.
*/
void omap3isp_csi2_isr(struct isp_csi2_device *csi2)
{
struct isp_pipeline *pipe = to_isp_pipeline(&csi2->subdev.entity);
u32 csi2_irqstatus, cpxio1_irqstatus;
struct isp_device *isp = csi2->isp;
if (!csi2->available)
return;
csi2_irqstatus = isp_reg_readl(isp, csi2->regs1, ISPCSI2_IRQSTATUS);
isp_reg_writel(isp, csi2_irqstatus, csi2->regs1, ISPCSI2_IRQSTATUS);
/* Failure Cases */
if (csi2_irqstatus & ISPCSI2_IRQSTATUS_COMPLEXIO1_ERR_IRQ) {
cpxio1_irqstatus = isp_reg_readl(isp, csi2->regs1,
ISPCSI2_PHY_IRQSTATUS);
isp_reg_writel(isp, cpxio1_irqstatus,
csi2->regs1, ISPCSI2_PHY_IRQSTATUS);
dev_dbg(isp->dev, "CSI2: ComplexIO Error IRQ "
"%x\n", cpxio1_irqstatus);
pipe->error = true;
}
if (csi2_irqstatus & (ISPCSI2_IRQSTATUS_OCP_ERR_IRQ |
ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ |
ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ |
ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ |
ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ)) {
dev_dbg(isp->dev, "CSI2 Err:"
" OCP:%d,"
" Short_pack:%d,"
" ECC:%d,"
" CPXIO2:%d,"
" FIFO_OVF:%d,"
"\n",
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_OCP_ERR_IRQ) ? 1 : 0,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ) ? 1 : 0,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ) ? 1 : 0,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ) ? 1 : 0,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ) ? 1 : 0);
pipe->error = true;
}
if (omap3isp_module_sync_is_stopping(&csi2->wait, &csi2->stopping))
return;
/* Successful cases */
if (csi2_irqstatus & ISPCSI2_IRQSTATUS_CONTEXT(0))
csi2_isr_ctx(csi2, &csi2->contexts[0]);
if (csi2_irqstatus & ISPCSI2_IRQSTATUS_ECC_CORRECTION_IRQ)
dev_dbg(isp->dev, "CSI2: ECC correction done\n");
}
/*
* omap4iss_csi2_isr - CSI2 interrupt handling.
*/
void omap4iss_csi2_isr(struct iss_csi2_device *csi2)
{
struct iss_pipeline *pipe = to_iss_pipeline(&csi2->subdev.entity);
u32 csi2_irqstatus, cpxio1_irqstatus;
struct iss_device *iss = csi2->iss;
if (!csi2->available)
return;
csi2_irqstatus = iss_reg_read(csi2->iss, csi2->regs1, CSI2_IRQSTATUS);
iss_reg_write(csi2->iss, csi2->regs1, CSI2_IRQSTATUS, csi2_irqstatus);
/* Failure Cases */
if (csi2_irqstatus & CSI2_IRQ_COMPLEXIO_ERR) {
cpxio1_irqstatus = iss_reg_read(csi2->iss, csi2->regs1,
CSI2_COMPLEXIO_IRQSTATUS);
iss_reg_write(csi2->iss, csi2->regs1, CSI2_COMPLEXIO_IRQSTATUS,
cpxio1_irqstatus);
dev_dbg(iss->dev, "CSI2: ComplexIO Error IRQ %x\n",
cpxio1_irqstatus);
pipe->error = true;
}
if (csi2_irqstatus & (CSI2_IRQ_OCP_ERR |
CSI2_IRQ_SHORT_PACKET |
CSI2_IRQ_ECC_NO_CORRECTION |
CSI2_IRQ_COMPLEXIO_ERR |
CSI2_IRQ_FIFO_OVF)) {
dev_dbg(iss->dev,
"CSI2 Err: OCP:%d SHORT:%d ECC:%d CPXIO:%d OVF:%d\n",
csi2_irqstatus & CSI2_IRQ_OCP_ERR ? 1 : 0,
csi2_irqstatus & CSI2_IRQ_SHORT_PACKET ? 1 : 0,
csi2_irqstatus & CSI2_IRQ_ECC_NO_CORRECTION ? 1 : 0,
csi2_irqstatus & CSI2_IRQ_COMPLEXIO_ERR ? 1 : 0,
csi2_irqstatus & CSI2_IRQ_FIFO_OVF ? 1 : 0);
pipe->error = true;
}
if (omap4iss_module_sync_is_stopping(&csi2->wait, &csi2->stopping))
return;
/* Successful cases */
if (csi2_irqstatus & CSI2_IRQ_CONTEXT0)
csi2_isr_ctx(csi2, &csi2->contexts[0]);
if (csi2_irqstatus & CSI2_IRQ_ECC_CORRECTION)
dev_dbg(iss->dev, "CSI2: ECC correction done\n");
}
