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Fix a logic bug that caused DSR to never be deasserted.

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MFC after: 5 days
This commit is contained in:
marcel 2005-01-30 22:14:30 +00:00
parent 19b479b41f
commit 456a3116c9
1 changed files with 2 additions and 2 deletions
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4
sys/dev/uart/uart_dev_sab82532.c
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@ -459,7 +459,7 @@ sab82532_bus_getsig(struct uart_softc *sc)
SIGCHG(star & SAB_STAR_CTS, sig, SER_CTS, SER_DCTS);
vstr = uart_getreg(bas, SAB_VSTR);
SIGCHG(vstr & SAB_VSTR_CD, sig, SER_DCD, SER_DDCD);
pvr = uart_getreg(bas, SAB_PVR);
pvr = ~uart_getreg(bas, SAB_PVR);
switch (bas->chan) {
case 1:
pvr &= SAB_PVR_DSR_A;
@ -468,7 +468,7 @@ sab82532_bus_getsig(struct uart_softc *sc)
pvr &= SAB_PVR_DSR_B;
break;
}
SIGCHG(~pvr, sig, SER_DSR, SER_DDSR);
SIGCHG(pvr, sig, SER_DSR, SER_DDSR);
mtx_unlock_spin(&sc->sc_hwmtx);
new = sig & ~UART_SIGMASK_DELTA;
} while (!atomic_cmpset_32(&sc->sc_hwsig, old, new));