67 	struct cs_softc_isa *isc = (struct cs_softc_isa *)sc;  in cs_isa_dma_attach()  local
69 	if (isc->sc_drq == ISA_UNKNOWN_DRQ)  in cs_isa_dma_attach()
72 	else if (isc->sc_drq < 5 || isc->sc_drq > 7)  in cs_isa_dma_attach()
79 		maxsize = isa_dmamaxsize(isc->sc_ic, isc->sc_drq);  in cs_isa_dma_attach()
88 		if (isa_drq_alloc(isc->sc_ic, isc->sc_drq) != 0) {  in cs_isa_dma_attach()
91 			    isc->sc_drq);  in cs_isa_dma_attach()
95 		if (isa_dmamap_create(isc->sc_ic, isc->sc_drq,  in cs_isa_dma_attach()
101 		if (isa_dmamem_alloc(isc->sc_ic, isc->sc_drq,  in cs_isa_dma_attach()
107 		if (isa_dmamem_map(isc->sc_ic, isc->sc_drq, dma_addr,  in cs_isa_dma_attach()
108 		    CS8900_DMASIZE, (void **)&isc->sc_dmabase,  in cs_isa_dma_attach()
112 			isa_dmamem_free(isc->sc_ic, isc->sc_drq, dma_addr,  in cs_isa_dma_attach()
117 		isc->sc_dmasize = CS8900_DMASIZE;  in cs_isa_dma_attach()
119 		isc->sc_dmaaddr = dma_addr;  in cs_isa_dma_attach()
127 	struct cs_softc_isa *isc = (struct cs_softc_isa *)sc;  in cs_isa_dma_chipinit()  local
135 		if (isa_dmastart(isc->sc_ic, isc->sc_drq, isc->sc_dmabase,  in cs_isa_dma_chipinit()
136 		    isc->sc_dmasize, NULL, DMAMODE_READ | DMAMODE_LOOPDEMAND,  in cs_isa_dma_chipinit()
142 		isc->sc_dmacur = isc->sc_dmabase;  in cs_isa_dma_chipinit()
152 		if (isc->sc_dmasize == 16384) {  in cs_isa_dma_chipinit()
162 		CS_WRITE_PACKET_PAGE(sc, PKTPG_DMA_CHANNEL, isc->sc_drq - 5);  in cs_isa_dma_chipinit()
168 	struct cs_softc_isa *isc = (struct cs_softc_isa *)sc;  in cs_process_rx_dma()  local
192 		dma_mem_ptr = isc->sc_dmacur;  in cs_process_rx_dma()
209 			if (dma_mem_ptr > (isc->sc_dmabase + isc->sc_dmasize)) {  in cs_process_rx_dma()
210 				dma_mem_ptr = isc->sc_dmabase;  in cs_process_rx_dma()
232 				isa_dmaabort(isc->sc_ic, isc->sc_drq);  in cs_process_rx_dma()
256 					isa_dmaabort(isc->sc_ic, isc->sc_drq);  in cs_process_rx_dma()
279 					isa_dmaabort(isc->sc_ic, isc->sc_drq);  in cs_process_rx_dma()
315 				    (isc->sc_dmabase + isc->sc_dmasize)) {  in cs_process_rx_dma()
324 					    ((isc->sc_dmabase + isc->sc_dmasize) -  in cs_process_rx_dma()
342 					dma_mem_ptr = isc->sc_dmabase;  in cs_process_rx_dma()
377 			if (dma_mem_ptr < (isc->sc_dmabase + isc->sc_dmasize)) {  in cs_process_rx_dma()
378 				isc->sc_dmacur = dma_mem_ptr;  in cs_process_rx_dma()
380 				dma_mem_ptr = isc->sc_dmacur = isc->sc_dmabase;  in cs_process_rx_dma()