203 	struct scc_param param;  member
572 		priv->param.pclk_hz = hw[type].pclk_hz;  in setup_adapter()
573 		priv->param.brg_tc = -1;  in setup_adapter()
574 		priv->param.clocks = TCTRxCP | RCRTxCP;  in setup_adapter()
575 		priv->param.persist = 256;  in setup_adapter()
576 		priv->param.dma = -1;  in setup_adapter()
734 	if (priv->param.dma >= 0) {  in scc_open()
735 		if (request_dma(priv->param.dma, "dmascc")) {  in scc_open()
741 			clear_dma_ff(priv->param.dma);  in scc_open()
798 		if (priv->param.dma >= 0) {  in scc_open()
810 	write_scc(priv, R10, CRCPS | (priv->param.nrzi ? NRZI : NRZ));  in scc_open()
813 	if (priv->param.brg_tc >= 0) {  in scc_open()
815 		write_scc(priv, R12, priv->param.brg_tc & 0xFF);  in scc_open()
816 		write_scc(priv, R13, (priv->param.brg_tc >> 8) & 0xFF);  in scc_open()
834 	write_scc(priv, R11, priv->param.clocks);  in scc_open()
835 	if ((priv->type == TYPE_TWIN) && !(priv->param.clocks & TRxCOI)) {  in scc_open()
878 	if (priv->param.dma >= 0) {  in scc_close()
881 		free_dma(priv->param.dma);  in scc_close()
897 		    (ifr->ifr_data, &priv->param,  in scc_ioctl()
907 		    (&priv->param, ifr->ifr_data,  in scc_ioctl()
954 		start_timer(priv, priv->param.txdelay, 0);  in scc_send_packet()
978 	if (priv->param.dma >= 0) {  in tx_on()
982 		set_dma_mode(priv->param.dma, DMA_MODE_WRITE);  in tx_on()
983 		set_dma_addr(priv->param.dma,  in tx_on()
985 		set_dma_count(priv->param.dma,  in tx_on()
992 			outb((priv->param.dma ==  in tx_on()
1004 		enable_dma(priv->param.dma);  in tx_on()
1026 	if (priv->param.dma >= 0) {  in rx_on()
1029 		set_dma_mode(priv->param.dma, DMA_MODE_READ);  in rx_on()
1030 		set_dma_addr(priv->param.dma,  in rx_on()
1032 		set_dma_count(priv->param.dma, BUF_SIZE);  in rx_on()
1034 		enable_dma(priv->param.dma);  in rx_on()
1037 			outb((priv->param.dma ==  in rx_on()
1061 	if (priv->param.dma >= 0 && priv->type == TYPE_TWIN)  in rx_off()
1066 	if (priv->param.dma >= 0)  in rx_off()
1067 		disable_dma(priv->param.dma);  in rx_off()
1164 	if (priv->param.dma >= 0) {  in rx_isr()
1198 		if (priv->param.dma < 0)  in special_condition()
1202 		if (priv->param.dma >= 0) {  in special_condition()
1204 			cb = BUF_SIZE - get_dma_residue(priv->param.dma) -  in special_condition()
1241 		if (priv->param.dma >= 0) {  in special_condition()
1243 			set_dma_addr(priv->param.dma,  in special_condition()
1245 			set_dma_count(priv->param.dma, BUF_SIZE);  in special_condition()
1331 		if (priv->param.dma >= 0) {  in es_isr()
1332 			disable_dma(priv->param.dma);  in es_isr()
1334 			res = get_dma_residue(priv->param.dma);  in es_isr()
1341 		if (priv->param.dma >= 0 && priv->type == TYPE_TWIN)  in es_isr()
1365 		    (jiffies - priv->tx_start) < priv->param.txtimeout) {  in es_isr()
1367 			start_timer(priv, priv->param.txpause, 0);  in es_isr()
1370 			start_timer(priv, priv->param.txtail, 0);  in es_isr()
1382 				start_timer(priv, priv->param.dcdon, 0);  in es_isr()
1390 				start_timer(priv, priv->param.dcdoff, 0);  in es_isr()
1415 		start_timer(priv, priv->param.rtsoff, 0);  in tm_isr()
1426 			start_timer(priv, priv->param.waittime, DCDIE);  in tm_isr()
1436 			start_timer(priv, priv->param.txdelay, 0);  in tm_isr()
1453 				    random() / priv->param.persist *  in tm_isr()
1454 				    priv->param.slottime, DCDIE);  in tm_isr()