usb/serial/umcs.c

123 	uint8_t	sc_mcr;			/* local modem control register */
501 	sc->sc_ports[pn].sc_mcr = MCS7840_UART_MCR_DTR | MCS7840_UART_MCR_RTS | MCS7840_UART_MCR_IE;
502 	if (umcs7840_set_UART_reg_sync(sc, pn, MCS7840_UART_REG_MCR, sc->sc_ports[pn].sc_mcr))
575 		sc->sc_ports[pn].sc_mcr |= MCS7840_UART_MCR_DTR;
577 		sc->sc_ports[pn].sc_mcr &= ~MCS7840_UART_MCR_DTR;
579 	umcs7840_set_UART_reg_sync(sc, pn, MCS7840_UART_REG_MCR, sc->sc_ports[pn].sc_mcr);
590 		sc->sc_ports[pn].sc_mcr |= MCS7840_UART_MCR_RTS;
592 		sc->sc_ports[pn].sc_mcr &= ~MCS7840_UART_MCR_RTS;
594 	umcs7840_set_UART_reg_sync(sc, pn, MCS7840_UART_REG_MCR, sc->sc_ports[pn].sc_mcr);
620 	uint8_t mcr = sc->sc_ports[pn].sc_mcr;
682 	sc->sc_ports[pn].sc_mcr = mcr;
683 	umcs7840_set_UART_reg_sync(sc, pn, MCS7840_UART_REG_MCR, sc->sc_ports[pn].sc_mcr);
684 	DPRINTF("Port %d MCR=%02x\n", pn, sc->sc_ports[pn].sc_mcr);