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path: root/drivers/ieee1394/ohci1394.c
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Diffstat (limited to 'drivers/ieee1394/ohci1394.c')
-rw-r--r--drivers/ieee1394/ohci1394.c37
1 files changed, 24 insertions, 13 deletions
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index c031650a1c74..3d278412e1ca 100644
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -163,7 +163,7 @@ printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id ,
/* Module Parameters */
static int phys_dma = 1;
-module_param(phys_dma, int, 0644);
+module_param(phys_dma, int, 0444);
MODULE_PARM_DESC(phys_dma, "Enable physical dma (default = 1).");
static void dma_trm_tasklet(unsigned long data);
@@ -553,7 +553,8 @@ static void ohci_initialize(struct ti_ohci *ohci)
* register content.
* To actually enable physical responses is the job of our interrupt
* handler which programs the physical request filter. */
- reg_write(ohci, OHCI1394_PhyUpperBound, 0x01000000);
+ reg_write(ohci, OHCI1394_PhyUpperBound,
+ OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED >> 16);
DBGMSG("physUpperBoundOffset=%08x",
reg_read(ohci, OHCI1394_PhyUpperBound));
@@ -580,6 +581,7 @@ static void ohci_initialize(struct ti_ohci *ohci)
OHCI1394_isochRx |
OHCI1394_isochTx |
OHCI1394_postedWriteErr |
+ OHCI1394_cycleTooLong |
OHCI1394_cycleInconsistent);
/* Enable link */
@@ -2382,6 +2384,15 @@ static irqreturn_t ohci_irq_handler(int irq, void *dev_id,
PRINT(KERN_ERR, "physical posted write error");
/* no recovery strategy yet, had to involve protocol drivers */
}
+ if (event & OHCI1394_cycleTooLong) {
+ if(printk_ratelimit())
+ PRINT(KERN_WARNING, "isochronous cycle too long");
+ else
+ DBGMSG("OHCI1394_cycleTooLong");
+ reg_write(ohci, OHCI1394_LinkControlSet,
+ OHCI1394_LinkControl_CycleMaster);
+ event &= ~OHCI1394_cycleTooLong;
+ }
if (event & OHCI1394_cycleInconsistent) {
/* We subscribe to the cycleInconsistent event only to
* clear the corresponding event bit... otherwise,
@@ -3400,6 +3411,14 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
host->csr.max_rec = (reg_read(ohci, OHCI1394_BusOptions) >> 12) & 0xf;
host->csr.lnk_spd = reg_read(ohci, OHCI1394_BusOptions) & 0x7;
+ if (phys_dma) {
+ host->low_addr_space =
+ (u64) reg_read(ohci, OHCI1394_PhyUpperBound) << 16;
+ if (!host->low_addr_space)
+ host->low_addr_space = OHCI1394_PHYS_UPPER_BOUND_FIXED;
+ }
+ host->middle_addr_space = OHCI1394_MIDDLE_ADDRESS_SPACE;
+
/* Tell the highlevel this host is ready */
if (hpsb_add_host(host))
FAIL(-ENOMEM, "Failed to register host with highlevel");
@@ -3458,24 +3477,13 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
case OHCI_INIT_HAVE_TXRX_BUFFERS__MAYBE:
/* The ohci_soft_reset() stops all DMA contexts, so we
* dont need to do this. */
- /* Free AR dma */
free_dma_rcv_ctx(&ohci->ar_req_context);
free_dma_rcv_ctx(&ohci->ar_resp_context);
-
- /* Free AT dma */
free_dma_trm_ctx(&ohci->at_req_context);
free_dma_trm_ctx(&ohci->at_resp_context);
-
- /* Free IR dma */
free_dma_rcv_ctx(&ohci->ir_legacy_context);
-
- /* Free IT dma */
free_dma_trm_ctx(&ohci->it_legacy_context);
- /* Free IR legacy dma */
- free_dma_rcv_ctx(&ohci->ir_legacy_context);
-
-
case OHCI_INIT_HAVE_SELFID_BUFFER:
pci_free_consistent(ohci->dev, OHCI1394_SI_DMA_BUF_SIZE,
ohci->selfid_buf_cpu,
@@ -3535,6 +3543,7 @@ static int ohci1394_pci_resume (struct pci_dev *pdev)
}
#endif /* CONFIG_PPC_PMAC */
+ pci_restore_state(pdev);
pci_enable_device(pdev);
return 0;
@@ -3554,6 +3563,8 @@ static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)
}
#endif
+ pci_save_state(pdev);
+
return 0;
}