diff options
Diffstat (limited to 'sys/arch/sparc/dev/z8530kbd.c')
| -rw-r--r-- | sys/arch/sparc/dev/z8530kbd.c | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/sys/arch/sparc/dev/z8530kbd.c b/sys/arch/sparc/dev/z8530kbd.c index 4131cfb1ed5..1e5e723c611 100644 --- a/sys/arch/sparc/dev/z8530kbd.c +++ b/sys/arch/sparc/dev/z8530kbd.c @@ -1,4 +1,4 @@ -/* $OpenBSD: z8530kbd.c,v 1.2 2002/11/29 01:00:46 miod Exp $ */ +/* $OpenBSD: z8530kbd.c,v 1.3 2003/03/09 01:43:44 miod Exp $ */ /* $NetBSD: z8530tty.c,v 1.77 2001/05/30 15:24:24 lukem Exp $ */ /*- @@ -235,7 +235,7 @@ static void zskbd_txint(struct zs_chanstate *); static void zskbd_softint(struct zs_chanstate *); static void zskbd_diag(void *); -void zskbd_init(struct zskbd_softc *); +int zskbd_init(struct zskbd_softc *); void zskbd_putc(struct zskbd_softc *, u_int8_t); void zskbd_raw(struct zskbd_softc *, u_int8_t); void zskbd_reset(struct zskbd_softc *); @@ -375,37 +375,39 @@ zskbd_attach(parent, self, aux) /* Wait a while for previous console output to complete */ DELAY(10000); - - /* - * Turn on receiver and status interrupts. - * We defer the actual write of the register to zsparam(), - * but we must make sure status interrupts are turned on by - * the time zsparam() reads the initial rr0 state. - */ - zskbd_init(zst); - SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_SIE); - zs_write_reg(cs, 1, cs->cs_creg[1]); - - s = splzs(); - - /* Make sure DTR is on now. */ - zs_modem(zst, 1); - - splx(s); } else if (!ISSET(zst->zst_hwflags, ZS_HWFLAG_NORESET)) { /* Not the console; may need reset. */ int reset; reset = (channel == 0) ? ZSWR9_A_RESET : ZSWR9_B_RESET; - s = splzs(); - zs_write_reg(cs, 9, reset); + splx(s); + } + /* + * Probe for a keyboard. + * If one is found, turn on receiver and status interrupts. + * We defer the actual write of the register to zsparam(), + * but we must make sure status interrupts are turned on by + * the time zsparam() reads the initial rr0 state. + */ + if (zskbd_init(zst)) { + SET(cs->cs_preg[1], ZSWR1_RIE | ZSWR1_SIE); + zs_write_reg(cs, 1, cs->cs_creg[1]); + + /* Make sure DTR is on now. */ + s = splzs(); + zs_modem(zst, 1); + splx(s); + } else { /* Will raise DTR in open. */ + s = splzs(); zs_modem(zst, 0); - splx(s); + + printf("%s: no keyboard\n", self->dv_xname); + return; } /* @@ -454,7 +456,7 @@ zskbd_attach(parent, self, aux) zst->zst_wskbddev = config_found(self, &a, wskbddevprint); } -void +int zskbd_init(zst) struct zskbd_softc *zst; { @@ -465,11 +467,11 @@ zskbd_init(zst) /* setup for 1200n81 */ if (zs_set_speed(cs, 1200)) { /* set 1200bps */ printf(": failed to set baudrate\n"); - return; + return 0; } if (zs_set_modes(cs, CS8 | CLOCAL)) { printf(": failed to set modes\n"); - return; + return 0; } s = splzs(); @@ -601,6 +603,8 @@ zskbd_init(zst) if (tries == 0) printf(": reset timeout\n"); splx(s); + + return tries; } void |