317 static unsigned int zs_raw_get_ab_mctrl(struct zs_port *zport_a,  in zs_raw_get_ab_mctrl()  argument
323 	status_a = read_zsreg(zport_a, R0);  in zs_raw_get_ab_mctrl()
336 	struct zs_port *zport_a = &zport->scc->zport[ZS_CHAN_A];  in zs_raw_get_mctrl()  local
338 	return zport != zport_a ? zs_raw_get_ab_mctrl(zport_a, zport) : 0;  in zs_raw_get_mctrl()
343 	struct zs_port *zport_a = &zport->scc->zport[ZS_CHAN_A];  in zs_raw_xor_mctrl()  local
347 	if (zport == zport_a)  in zs_raw_xor_mctrl()
350 	mask_a = zport_a->regs[15];  in zs_raw_xor_mctrl()
361 		mctrl |= zs_raw_get_ab_mctrl(zport_a, zport) & mmask;  in zs_raw_xor_mctrl()
388 	struct zs_port *zport_a = &scc->zport[ZS_CHAN_A];  in zs_set_mctrl()  local
392 	if (zport != zport_a) {  in zs_set_mctrl()
394 			zport_a->regs[5] |= DTR;  in zs_set_mctrl()
396 			zport_a->regs[5] &= ~DTR;  in zs_set_mctrl()
398 			zport_a->regs[5] |= RTS;  in zs_set_mctrl()
400 			zport_a->regs[5] &= ~RTS;  in zs_set_mctrl()
401 		write_zsreg(zport_a, R5, zport_a->regs[5]);  in zs_set_mctrl()
454 	struct zs_port *zport_a = &scc->zport[ZS_CHAN_A];  in zs_stop_rx()  local
461 	if (zport != zport_a) {  in zs_stop_rx()
463 		zport_a->regs[15] &= ~(DCDIE | SYNCIE);  in zs_stop_rx()
464 		write_zsreg(zport_a, R15, zport_a->regs[15]);  in zs_stop_rx()
465 		if (!(zport_a->regs[15] & BRKIE)) {  in zs_stop_rx()
466 			zport_a->regs[1] &= ~EXT_INT_ENAB;  in zs_stop_rx()
467 			write_zsreg(zport_a, R1, zport_a->regs[1]);  in zs_stop_rx()
488 	struct zs_port *zport_a = &scc->zport[ZS_CHAN_A];  in zs_enable_ms()  local
490 	if (zport == zport_a)  in zs_enable_ms()
496 	if (!(zport_a->regs[1] & EXT_INT_ENAB))  in zs_enable_ms()
497 		write_zsreg(zport_a, R0, RES_EXT_INT);  in zs_enable_ms()
500 	zport_a->regs[1] |= EXT_INT_ENAB;  in zs_enable_ms()
501 	zport_a->regs[15] |= DCDIE | SYNCIE;  in zs_enable_ms()
508 	write_zsreg(zport_a, R1, zport_a->regs[1]);  in zs_enable_ms()
509 	write_zsreg(zport_a, R15, zport_a->regs[15]);  in zs_enable_ms()
646 static void zs_status_handle(struct zs_port *zport, struct zs_port *zport_a)  in zs_status_handle()  argument
671 	if (zport != zport_a) {  in zs_status_handle()
704 	struct zs_port *zport_a = &scc->zport[ZS_CHAN_A];  in zs_interrupt()  local
719 		zs_intreg = read_zsreg(zport_a, R3);  in zs_interrupt()
732 			zs_receive_chars(zport_a);  in zs_interrupt()
734 			zs_status_handle(zport_b, zport_a);  in zs_interrupt()
736 			zs_status_handle(zport_a, zport_a);  in zs_interrupt()
740 			zs_transmit_chars(zport_a);  in zs_interrupt()
828 	struct zs_port *zport_a = &zport->scc->zport[ZS_CHAN_A];  in zs_reset()  local
840 	write_zsreg(zport, R9, zport == zport_a ? CHRA : CHRB);  in zs_reset()
853 	struct zs_port *zport_a = &scc->zport[ZS_CHAN_A];  in zs_set_termios()  local
940 	if (zport != zport_a) {  in zs_set_termios()