diff options
| -rw-r--r-- | drivers/media/common/saa7146_core.c | 54 | ||||
| -rw-r--r-- | drivers/media/dvb/ttpci/av7110.c | 9 | ||||
| -rw-r--r-- | drivers/media/dvb/ttpci/budget-core.c | 37 | ||||
| -rw-r--r-- | include/media/saa7146.h | 2 |
4 files changed, 63 insertions, 39 deletions
diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c index 86cbdbcf9d7..ef3e54cd940 100644 --- a/drivers/media/common/saa7146_core.c +++ b/drivers/media/common/saa7146_core.c @@ -136,28 +136,45 @@ char *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa char *mem = vmalloc_32(length); int slen = 0; - if (NULL == mem) { - return NULL; - } + if (NULL == mem) + goto err_null; - if (!(pt->slist = vmalloc_to_sg(mem, pages))) { - vfree(mem); - return NULL; - } + if (!(pt->slist = vmalloc_to_sg(mem, pages))) + goto err_free_mem; - if (saa7146_pgtable_alloc(pci, pt)) { - kfree(pt->slist); - pt->slist = NULL; - vfree(mem); - return NULL; - } + if (saa7146_pgtable_alloc(pci, pt)) + goto err_free_slist; - slen = pci_map_sg(pci,pt->slist,pages,PCI_DMA_FROMDEVICE); - if (0 != saa7146_pgtable_build_single(pci, pt, pt->slist, slen)) { - return NULL; - } + pt->nents = pages; + slen = pci_map_sg(pci,pt->slist,pt->nents,PCI_DMA_FROMDEVICE); + if (0 == slen) + goto err_free_pgtable; + + if (0 != saa7146_pgtable_build_single(pci, pt, pt->slist, slen)) + goto err_unmap_sg; return mem; + +err_unmap_sg: + pci_unmap_sg(pci, pt->slist, pt->nents, PCI_DMA_FROMDEVICE); +err_free_pgtable: + saa7146_pgtable_free(pci, pt); +err_free_slist: + kfree(pt->slist); + pt->slist = NULL; +err_free_mem: + vfree(mem); +err_null: + return NULL; +} + +void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, char *mem, struct saa7146_pgtable *pt) +{ + pci_unmap_sg(pci, pt->slist, pt->nents, PCI_DMA_FROMDEVICE); + saa7146_pgtable_free(pci, pt); + kfree(pt->slist); + pt->slist = NULL; + vfree(mem); } void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt) @@ -166,8 +183,6 @@ void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt) return; pci_free_consistent(pci, pt->size, pt->cpu, pt->dma); pt->cpu = NULL; - kfree(pt->slist); - pt->slist = NULL; } int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt) @@ -528,6 +543,7 @@ EXPORT_SYMBOL_GPL(saa7146_pgtable_alloc); EXPORT_SYMBOL_GPL(saa7146_pgtable_free); EXPORT_SYMBOL_GPL(saa7146_pgtable_build_single); EXPORT_SYMBOL_GPL(saa7146_vmalloc_build_pgtable); +EXPORT_SYMBOL_GPL(saa7146_vfree_destroy_pgtable); EXPORT_SYMBOL_GPL(saa7146_wait_for_debi_done); EXPORT_SYMBOL_GPL(saa7146_setgpio); diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c index 67becdd4db6..ef1108c0bf1 100644 --- a/drivers/media/dvb/ttpci/av7110.c +++ b/drivers/media/dvb/ttpci/av7110.c @@ -1246,6 +1246,9 @@ static void vpeirq(unsigned long data) if (!budget->feeding1 || (newdma == olddma)) return; + /* Ensure streamed PCI data is synced to CPU */ + pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE); + #if 0 /* track rps1 activity */ printk("vpeirq: %02x Event Counter 1 0x%04x\n", @@ -2679,8 +2682,8 @@ err_iobuf_vfree_6: err_pci_free_5: pci_free_consistent(pdev, 8192, av7110->debi_virt, av7110->debi_bus); err_saa71466_vfree_4: - if (!av7110->grabbing) - saa7146_pgtable_free(pdev, &av7110->pt); + if (av7110->grabbing) + saa7146_vfree_destroy_pgtable(pdev, av7110->grabbing, &av7110->pt); err_i2c_del_3: i2c_del_adapter(&av7110->i2c_adap); err_dvb_unregister_adapter_2: @@ -2710,7 +2713,7 @@ static int __devexit av7110_detach(struct saa7146_dev* saa) SAA7146_ISR_CLEAR(saa, MASK_10); msleep(50); tasklet_kill(&av7110->vpe_tasklet); - saa7146_pgtable_free(saa->pci, &av7110->pt); + saa7146_vfree_destroy_pgtable(saa->pci, av7110->grabbing, &av7110->pt); } av7110_exit_v4l(av7110); diff --git a/drivers/media/dvb/ttpci/budget-core.c b/drivers/media/dvb/ttpci/budget-core.c index 6b97dc1e6b6..2557ac9620d 100644 --- a/drivers/media/dvb/ttpci/budget-core.c +++ b/drivers/media/dvb/ttpci/budget-core.c @@ -195,6 +195,9 @@ static void vpeirq(unsigned long data) u32 newdma = saa7146_read(budget->dev, PCI_VDP3); u32 count; + /* Ensure streamed PCI data is synced to CPU */ + pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE); + /* nearest lower position divisible by 188 */ newdma -= newdma % 188; @@ -504,16 +507,16 @@ int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev, strcpy(budget->i2c_adap.name, budget->card->name); if (i2c_add_adapter(&budget->i2c_adap) < 0) { - dvb_unregister_adapter(&budget->dvb_adapter); - return -ENOMEM; + ret = -ENOMEM; + goto err_dvb_unregister; } ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac); - if (NULL == - (budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt))) { + budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt); + if (NULL == budget->grabbing) { ret = -ENOMEM; - goto err; + goto err_del_i2c; } saa7146_write(dev, PCI_BT_V1, 0x001c0000); @@ -526,14 +529,16 @@ int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev, if (bi->type != BUDGET_FS_ACTIVY) saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI); - if (budget_register(budget) == 0) { - return 0; - } -err: - i2c_del_adapter(&budget->i2c_adap); + if (budget_register(budget) == 0) + return 0; /* Everything OK */ + + /* An error occurred, cleanup resources */ + saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt); - vfree(budget->grabbing); +err_del_i2c: + i2c_del_adapter(&budget->i2c_adap); +err_dvb_unregister: dvb_unregister_adapter(&budget->dvb_adapter); return ret; @@ -555,15 +560,13 @@ int ttpci_budget_deinit(struct budget *budget) budget_unregister(budget); - i2c_del_adapter(&budget->i2c_adap); - - dvb_unregister_adapter(&budget->dvb_adapter); - tasklet_kill(&budget->vpe_tasklet); - saa7146_pgtable_free(dev->pci, &budget->pt); + saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt); - vfree(budget->grabbing); + i2c_del_adapter(&budget->i2c_adap); + + dvb_unregister_adapter(&budget->dvb_adapter); return 0; } diff --git a/include/media/saa7146.h b/include/media/saa7146.h index 796bcf151a3..d3f4f5a3821 100644 --- a/include/media/saa7146.h +++ b/include/media/saa7146.h @@ -58,6 +58,7 @@ struct saa7146_pgtable { unsigned long offset; /* used for custom pagetables (used for example by budget dvb cards) */ struct scatterlist *slist; + int nents; }; struct saa7146_pci_extension_data { @@ -157,6 +158,7 @@ int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt); void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt); int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, struct scatterlist *list, int length ); char *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt); +void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, char *mem, struct saa7146_pgtable *pt); void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data); int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop); |