63 	struct sa1100_buf	dma_rx;  member
165 	if (si->dma_rx.skb)  in sa1100_irda_rx_alloc()
168 	si->dma_rx.skb = alloc_skb(HPSIR_MAX_RXLEN + 1, GFP_ATOMIC);  in sa1100_irda_rx_alloc()
169 	if (!si->dma_rx.skb) {  in sa1100_irda_rx_alloc()
178 	skb_reserve(si->dma_rx.skb, 1);  in sa1100_irda_rx_alloc()
180 	sg_set_buf(&si->dma_rx.sg, si->dma_rx.skb->data, HPSIR_MAX_RXLEN);  in sa1100_irda_rx_alloc()
181 	if (dma_map_sg(si->dma_rx.dev, &si->dma_rx.sg, 1, DMA_FROM_DEVICE) == 0) {  in sa1100_irda_rx_alloc()
182 		dev_kfree_skb_any(si->dma_rx.skb);  in sa1100_irda_rx_alloc()
195 	if (!si->dma_rx.skb) {  in sa1100_irda_rx_dma_start()
208 	dmaengine_terminate_all(si->dma_rx.chan);  in sa1100_irda_rx_dma_start()
209 	sa1100_irda_dma_start(&si->dma_rx, DMA_DEV_TO_MEM, NULL, NULL);  in sa1100_irda_rx_dma_start()
425 	struct sk_buff *skb = si->dma_rx.skb;  in sa1100_irda_fir_error()
436 	len = sa1100_irda_dma_xferred(&si->dma_rx);  in sa1100_irda_fir_error()
439 	dma_unmap_sg(si->dma_rx.dev, &si->dma_rx.sg, 1, DMA_FROM_DEVICE);  in sa1100_irda_fir_error()
467 		si->dma_rx.skb = NULL;  in sa1100_irda_fir_error()
487 		dma_map_sg(si->dma_rx.dev, &si->dma_rx.sg, 1, DMA_FROM_DEVICE);  in sa1100_irda_fir_error()
500 	dmaengine_pause(si->dma_rx.chan);  in sa1100_irda_fir_irq()
557 			dmaengine_terminate_all(si->dma_rx.chan);  in sa1100_irda_set_speed()
782 	dmaengine_terminate_all(si->dma_rx.chan);  in sa1100_irda_shutdown()
800 	err = sa1100_irda_dma_request(si->dev, &si->dma_rx, "Ser2ICPRc",  in sa1100_irda_start()
846 	dma_release_channel(si->dma_rx.chan);  in sa1100_irda_start()
865 	skb = si->dma_rx.skb;  in sa1100_irda_stop()
867 		dma_unmap_sg(si->dma_rx.dev, &si->dma_rx.sg, 1,  in sa1100_irda_stop()
870 		si->dma_rx.skb = NULL;  in sa1100_irda_stop()
891 	dma_release_channel(si->dma_rx.chan);  in sa1100_irda_stop()
954 	sg_init_table(&si->dma_rx.sg, 1);  in sa1100_irda_probe()