diff options
| author | joerg <joerg@FreeBSD.org> | 2004-06-08 11:58:34 +0000 |
|---|---|---|
| committer | joerg <joerg@FreeBSD.org> | 2004-06-08 11:58:34 +0000 |
| commit | 89b27dc636039a2d99d5d97c3ded9e0172355ebc (patch) | |
| tree | d687e6ae7337003b3690cbfcf207ba4a149e5f19 /sys/dev/sab | |
| parent | 75d585e46d3fcddefa3b742d33c2fd2e327f8a16 (diff) | |
| download | FreeBSD-src-89b27dc636039a2d99d5d97c3ded9e0172355ebc.zip FreeBSD-src-89b27dc636039a2d99d5d97c3ded9e0172355ebc.tar.gz | |
Implement the BREAK_TO_DEBUGGER option for sab(4).
Diffstat (limited to 'sys/dev/sab')
| -rw-r--r-- | sys/dev/sab/sab.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/dev/sab/sab.c b/sys/dev/sab/sab.c index 0193431..083b85a 100644 --- a/sys/dev/sab/sab.c +++ b/sys/dev/sab/sab.c @@ -578,6 +578,12 @@ sabtty_intr(struct sabtty_softc *sc) needsoft = 1; } +#if defined(DDB) && defined(BREAK_TO_DEBUGGER) + if (sc->sc_console != 0 && (isr1 & SAB_ISR1_BRK) != 0) { + brk = 1; + } +#endif + if (isr1 & SAB_ISR1_XPR) { if (sc->sc_ocnt > 0) { len = min(sc->sc_ocnt, 32); @@ -675,8 +681,13 @@ sabttyopen(dev_t dev, int flags, int mode, struct thread *td) SAB_WRITE(sc->sc_parent, SAB_IPC, sc->sc_parent->sc_ipc); sc->sc_imr0 = SAB_IMR0_PERR | SAB_IMR0_FERR | SAB_IMR0_PLLA; SAB_WRITE(sc, SAB_IMR0, sc->sc_imr0); +#if defined(DDB) && defined(BREAK_TO_DEBUGGER) + sc->sc_imr1 = SAB_IMR1_ALLS | SAB_IMR1_XDU | + SAB_IMR1_TIN | SAB_IMR1_CSC | SAB_IMR1_XMR | SAB_IMR1_XPR; +#else sc->sc_imr1 = SAB_IMR1_BRK | SAB_IMR1_ALLS | SAB_IMR1_XDU | SAB_IMR1_TIN | SAB_IMR1_CSC | SAB_IMR1_XMR | SAB_IMR1_XPR; +#endif SAB_WRITE(sc, SAB_IMR1, sc->sc_imr1); SAB_WRITE(sc, SAB_CCR0, SAB_READ(sc, SAB_CCR0) | SAB_CCR0_PU); sabtty_cec_wait(sc); |
