diff options
| author | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 1998-10-02 22:04:10 +0000 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 1998-10-02 22:04:10 +0000 |
| commit | 913d0157b31f9934fd4367f0ef3f2eb1a0818882 (patch) | |
| tree | a5d7625d0c328811850fca7ee1206c4df3d6b54c /drivers/sgi | |
| parent | c272714c76e8b6cef1dd2a78bdeed26bb3899dc2 (diff) | |
untwisted serial ports. now ttyS0 is serial 1 and ttyS1 is serial 2
Diffstat (limited to 'drivers/sgi')
| -rw-r--r-- | drivers/sgi/char/sgiserial.c | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/drivers/sgi/char/sgiserial.c b/drivers/sgi/char/sgiserial.c index 79ca43471..2d2f8ebed 100644 --- a/drivers/sgi/char/sgiserial.c +++ b/drivers/sgi/char/sgiserial.c @@ -40,15 +40,11 @@ struct sgi_zslayout *zs_chips[NUM_SERIAL] = { 0, }; struct sgi_zschannel *zs_channels[NUM_CHANNELS] = { 0, 0, }; struct sgi_zschannel *zs_conschan; struct sgi_zschannel *zs_kgdbchan; -int zs_nodes[NUM_SERIAL] = { 0, }; struct sgi_serial zs_soft[NUM_CHANNELS]; struct sgi_serial *zs_chain; /* IRQ servicing chain */ static int zilog_irq = 21; -struct tty_struct zs_ttys[NUM_CHANNELS]; -/** struct tty_struct *zs_constty; **/ - /* Console hooks... */ static int zs_cons_chanout = 0; static int zs_cons_chanin = 0; @@ -556,7 +552,7 @@ void rs_interrupt(int irq, void *dev_id, struct pt_regs * regs) struct sgi_serial * info = (struct sgi_serial *) dev_id; unsigned char zs_intreg; - zs_intreg = read_zsreg(info->zs_channel, 3); + zs_intreg = read_zsreg(info->zs_next->zs_channel, 3); /* NOTE: The read register 3, which holds the irq status, * does so for both channels on each chip. Although @@ -568,25 +564,25 @@ void rs_interrupt(int irq, void *dev_id, struct pt_regs * regs) #define CHAN_B_IRQMASK (CHBRxIP | CHBTxIP | CHBEXT) /* *** Chip 1 *** */ - /* Channel A -- /dev/ttya, could be the console */ - if(zs_intreg & CHAN_A_IRQMASK) { - if (zs_intreg & CHARxIP) + /* Channel B -- /dev/ttyb, could be the console */ + if(zs_intreg & CHAN_B_IRQMASK) { + if (zs_intreg & CHBRxIP) receive_chars(info, regs); - if (zs_intreg & CHATxIP) + if (zs_intreg & CHBTxIP) transmit_chars(info); - if (zs_intreg & CHAEXT) + if (zs_intreg & CHBEXT) status_handle(info); } info=info->zs_next; - /* Channel B -- /dev/ttyb, could be the console */ - if(zs_intreg & CHAN_B_IRQMASK) { - if (zs_intreg & CHBRxIP) + /* Channel A -- /dev/ttya, could be the console */ + if(zs_intreg & CHAN_A_IRQMASK) { + if (zs_intreg & CHARxIP) receive_chars(info, regs); - if (zs_intreg & CHBTxIP) + if (zs_intreg & CHATxIP) transmit_chars(info); - if (zs_intreg & CHBEXT) + if (zs_intreg & CHAEXT) status_handle(info); } } @@ -1719,7 +1715,6 @@ static inline void rs_cons_check(struct sgi_serial *ss, int channel) { int i, o, io; - static int consout_registered = 0; static int msg_printed = 0; i = o = io = 0; @@ -1850,8 +1845,8 @@ int rs_init(void) if(!zs_chips[chip]) { zs_chips[chip] = get_zs(chip); /* Two channels per chip */ - zs_channels[(chip*2)] = &zs_chips[chip]->channelA; - zs_channels[(chip*2)+1] = &zs_chips[chip]->channelB; + zs_channels[(chip*2)] = &zs_chips[chip]->channelB; + zs_channels[(chip*2)+1] = &zs_chips[chip]->channelA; zs_soft[(chip*2)].kgdb_channel = 0; zs_soft[(chip*2)+1].kgdb_channel = 0; } @@ -1973,8 +1968,8 @@ rs_cons_hook(int chip, int out, int line) if(!zs_chips[chip]) { zs_chips[chip] = get_zs(chip); /* Two channels per chip */ - zs_channels[(chip*2)] = &zs_chips[chip]->channelA; - zs_channels[(chip*2)+1] = &zs_chips[chip]->channelB; + zs_channels[(chip*2)] = &zs_chips[chip]->channelB; + zs_channels[(chip*2)+1] = &zs_chips[chip]->channelA; } zs_soft[channel].zs_channel = zs_channels[channel]; zs_soft[channel].change_needed = 0; |