diff options
Diffstat (limited to 'drivers/media/pci/cx25821/cx25821-core.c')
| -rw-r--r-- | drivers/media/pci/cx25821/cx25821-core.c | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c index 389fffd2f36..c8c65b79358 100644 --- a/drivers/media/pci/cx25821/cx25821-core.c +++ b/drivers/media/pci/cx25821/cx25821-core.c @@ -979,6 +979,27 @@ void cx25821_dev_unregister(struct cx25821_dev *dev) } EXPORT_SYMBOL(cx25821_dev_unregister); +int cx25821_riscmem_alloc(struct pci_dev *pci, + struct cx25821_riscmem *risc, + unsigned int size) +{ + __le32 *cpu; + dma_addr_t dma = 0; + + if (NULL != risc->cpu && risc->size < size) + pci_free_consistent(pci, risc->size, risc->cpu, risc->dma); + if (NULL == risc->cpu) { + cpu = pci_zalloc_consistent(pci, size, &dma); + if (NULL == cpu) + return -ENOMEM; + risc->cpu = cpu; + risc->dma = dma; + risc->size = size; + } + return 0; +} +EXPORT_SYMBOL(cx25821_riscmem_alloc); + static __le32 *cx25821_risc_field(__le32 * rp, struct scatterlist *sglist, unsigned int offset, u32 sync_line, unsigned int bpl, unsigned int padding, @@ -1035,7 +1056,7 @@ static __le32 *cx25821_risc_field(__le32 * rp, struct scatterlist *sglist, return rp; } -int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, +int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc, struct scatterlist *sglist, unsigned int top_offset, unsigned int bottom_offset, unsigned int bpl, unsigned int padding, unsigned int lines) @@ -1059,7 +1080,7 @@ int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, instructions = fields * (1 + ((bpl + padding) * lines) / PAGE_SIZE + lines); instructions += 2; - rc = btcx_riscmem_alloc(pci, risc, instructions * 12); + rc = cx25821_riscmem_alloc(pci, risc, instructions * 12); if (rc < 0) return rc; @@ -1146,7 +1167,7 @@ static __le32 *cx25821_risc_field_audio(__le32 * rp, struct scatterlist *sglist, } int cx25821_risc_databuffer_audio(struct pci_dev *pci, - struct btcx_riscmem *risc, + struct cx25821_riscmem *risc, struct scatterlist *sglist, unsigned int bpl, unsigned int lines, unsigned int lpi) @@ -1163,7 +1184,7 @@ int cx25821_risc_databuffer_audio(struct pci_dev *pci, instructions = 1 + (bpl * lines) / PAGE_SIZE + lines; instructions += 1; - rc = btcx_riscmem_alloc(pci, risc, instructions * 12); + rc = cx25821_riscmem_alloc(pci, risc, instructions * 12); if (rc < 0) return rc; @@ -1179,13 +1200,13 @@ int cx25821_risc_databuffer_audio(struct pci_dev *pci, } EXPORT_SYMBOL(cx25821_risc_databuffer_audio); -int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, +int cx25821_risc_stopper(struct pci_dev *pci, struct cx25821_riscmem *risc, u32 reg, u32 mask, u32 value) { __le32 *rp; int rc; - rc = btcx_riscmem_alloc(pci, risc, 4 * 16); + rc = cx25821_riscmem_alloc(pci, risc, 4 * 16); if (rc < 0) return rc; @@ -1211,7 +1232,8 @@ void cx25821_free_buffer(struct videobuf_queue *q, struct cx25821_buffer *buf) videobuf_waiton(q, &buf->vb, 0, 0); videobuf_dma_unmap(q->dev, dma); videobuf_dma_free(dma); - btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc); + pci_free_consistent(to_pci_dev(q->dev), + buf->risc.size, buf->risc.cpu, buf->risc.dma); buf->vb.state = VIDEOBUF_NEEDS_INIT; } |