diff options
| author | bde <bde@FreeBSD.org> | 2002-03-31 09:15:43 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 2002-03-31 09:15:43 +0000 |
| commit | df30d6374fe92f59350770d63cd31f77979006da (patch) | |
| tree | f8c2f5ed93e3f204296bb031ae818b3c8d00238f /sys | |
| parent | cf12629bdcf1d3d01898f867636181c50222eca8 (diff) | |
| download | FreeBSD-src-df30d6374fe92f59350770d63cd31f77979006da.zip FreeBSD-src-df30d6374fe92f59350770d63cd31f77979006da.tar.gz | |
Support more than 32 sio unit numbers. The maximum unit number is now
(65536 * 32 - 1), but MAKEDEV only supports up to (32 * 32 -1). Device
names use the unit number in base 32 for all "digits".
This required fixing an old bug in MAKEDEV:ttyminor(). Its arg was the
global $unit instead of $1.
Reminded by: Valentin K. Ponomarenko <valka@krog.ukrtel.net>
MFC-after: 1 week
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/sio/sio.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c index 2728e25..11894df 100644 --- a/sys/dev/sio/sio.c +++ b/sys/dev/sio/sio.c @@ -93,8 +93,10 @@ #define CONTROL_INIT_STATE 0x20 #define CONTROL_LOCK_STATE 0x40 #define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev))) -#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK) -#define MINOR_TO_UNIT(mynor) ((mynor) & ~MINOR_MAGIC_MASK) +#define MINOR_TO_UNIT(mynor) ((((mynor) & ~0xffffU) >> (8 + 3)) \ + | ((mynor) & 0x1f)) +#define UNIT_TO_MINOR(unit) ((((unit) & ~0x1fU) << (8 + 3)) \ + | ((unit) & 0x1f)) #ifdef COM_MULTIPORT /* checks in flags for multiport and which is multiport "master chip" @@ -874,6 +876,7 @@ sioattach(dev, xrid, rclk) Port_t *espp; #endif Port_t iobase; + int minorbase; int unit; u_int flags; int rid; @@ -1090,19 +1093,20 @@ determined_type: ; swi_add(&clk_ithd, "tty:sio", siopoll, NULL, SWI_TTY, 0, &sio_slow_ih); } - com->devs[0] = make_dev(&sio_cdevsw, unit, + minorbase = UNIT_TO_MINOR(unit); + com->devs[0] = make_dev(&sio_cdevsw, minorbase, UID_ROOT, GID_WHEEL, 0600, "ttyd%r", unit); - com->devs[1] = make_dev(&sio_cdevsw, unit | CONTROL_INIT_STATE, + com->devs[1] = make_dev(&sio_cdevsw, minorbase | CONTROL_INIT_STATE, UID_ROOT, GID_WHEEL, 0600, "ttyid%r", unit); - com->devs[2] = make_dev(&sio_cdevsw, unit | CONTROL_LOCK_STATE, + com->devs[2] = make_dev(&sio_cdevsw, minorbase | CONTROL_LOCK_STATE, UID_ROOT, GID_WHEEL, 0600, "ttyld%r", unit); - com->devs[3] = make_dev(&sio_cdevsw, unit | CALLOUT_MASK, + com->devs[3] = make_dev(&sio_cdevsw, minorbase | CALLOUT_MASK, UID_UUCP, GID_DIALER, 0660, "cuaa%r", unit); com->devs[4] = make_dev(&sio_cdevsw, - unit | CALLOUT_MASK | CONTROL_INIT_STATE, + minorbase | CALLOUT_MASK | CONTROL_INIT_STATE, UID_UUCP, GID_DIALER, 0660, "cuaia%r", unit); com->devs[5] = make_dev(&sio_cdevsw, - unit | CALLOUT_MASK | CONTROL_LOCK_STATE, + minorbase | CALLOUT_MASK | CONTROL_LOCK_STATE, UID_UUCP, GID_DIALER, 0660, "cuala%r", unit); com->flags = flags; com->pps.ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR; |
