Lines Matching refs:itv
80 void ivtv_udma_alloc(struct ivtv *itv) in ivtv_udma_alloc() argument
82 if (itv->udma.SG_handle == 0) { in ivtv_udma_alloc()
84 itv->udma.SG_handle = dma_map_single(&itv->pdev->dev, in ivtv_udma_alloc()
85 itv->udma.SGarray, in ivtv_udma_alloc()
86 sizeof(itv->udma.SGarray), in ivtv_udma_alloc()
88 ivtv_udma_sync_for_cpu(itv); in ivtv_udma_alloc()
92 int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, in ivtv_udma_setup() argument
96 struct ivtv_user_dma *dma = &itv->udma; in ivtv_udma_setup()
140 dma->SG_length = dma_map_sg(&itv->pdev->dev, dma->SGlist, in ivtv_udma_setup()
149 ivtv_udma_sync_for_device(itv); in ivtv_udma_setup()
153 void ivtv_udma_unmap(struct ivtv *itv) in ivtv_udma_unmap() argument
155 struct ivtv_user_dma *dma = &itv->udma; in ivtv_udma_unmap()
165 dma_unmap_sg(&itv->pdev->dev, dma->SGlist, dma->page_count, in ivtv_udma_unmap()
170 ivtv_udma_sync_for_cpu(itv); in ivtv_udma_unmap()
176 void ivtv_udma_free(struct ivtv *itv) in ivtv_udma_free() argument
181 if (itv->udma.SG_handle) { in ivtv_udma_free()
182 dma_unmap_single(&itv->pdev->dev, itv->udma.SG_handle, in ivtv_udma_free()
183 sizeof(itv->udma.SGarray), DMA_TO_DEVICE); in ivtv_udma_free()
187 if (itv->udma.SG_length) { in ivtv_udma_free()
188 dma_unmap_sg(&itv->pdev->dev, itv->udma.SGlist, in ivtv_udma_free()
189 itv->udma.page_count, DMA_TO_DEVICE); in ivtv_udma_free()
193 if (itv->udma.bouncemap[i]) in ivtv_udma_free()
194 __free_page(itv->udma.bouncemap[i]); in ivtv_udma_free()
198 void ivtv_udma_start(struct ivtv *itv) in ivtv_udma_start() argument
201 write_reg(itv->udma.SG_handle, IVTV_REG_DECDMAADDR); in ivtv_udma_start()
203 set_bit(IVTV_F_I_DMA, &itv->i_flags); in ivtv_udma_start()
204 set_bit(IVTV_F_I_UDMA, &itv->i_flags); in ivtv_udma_start()
205 clear_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags); in ivtv_udma_start()
208 void ivtv_udma_prepare(struct ivtv *itv) in ivtv_udma_prepare() argument
212 spin_lock_irqsave(&itv->dma_reg_lock, flags); in ivtv_udma_prepare()
213 if (!test_bit(IVTV_F_I_DMA, &itv->i_flags)) in ivtv_udma_prepare()
214 ivtv_udma_start(itv); in ivtv_udma_prepare()
216 set_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags); in ivtv_udma_prepare()
217 spin_unlock_irqrestore(&itv->dma_reg_lock, flags); in ivtv_udma_prepare()