diff options
Diffstat (limited to 'sys/i386/i386/conf.c')
| -rw-r--r-- | sys/i386/i386/conf.c | 142 |
1 files changed, 131 insertions, 11 deletions
diff --git a/sys/i386/i386/conf.c b/sys/i386/i386/conf.c index a52f8cd..3360de6 100644 --- a/sys/i386/i386/conf.c +++ b/sys/i386/i386/conf.c @@ -44,12 +44,27 @@ * $Id: conf.c,v 1.24 1994/04/21 14:10:31 sos Exp $ */ -#include "param.h" -#include "systm.h" -#include "buf.h" -#include "ioctl.h" -#include "tty.h" -#include "conf.h" +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/buf.h> +#include <sys/ioctl.h> +#include <sys/proc.h> +#include <sys/vnode.h> +#include <sys/tty.h> +#include <sys/conf.h> + +typedef int d_open_t __P((dev_t, int, int, struct proc *)); +typedef int d_close_t __P((dev_t, int, int, struct proc *)); +typedef int d_strategy_t __P((struct buf *)); +typedef int d_ioctl_t __P((dev_t, int, caddr_t, int, struct proc *)); +typedef int d_dump_t __P(()); +typedef int d_psize_t __P((dev_t)); + +typedef int d_rdwr_t __P((dev_t, struct uio *, int)); +typedef int d_stop_t __P((struct tty *, int)); +typedef int d_reset_t __P((int)); +typedef int d_select_t __P((dev_t, int, struct proc *)); +typedef int d_mmap_t __P((/* XXX */)); int nullop(), enxio(), enodev(); d_rdwr_t rawread, rawwrite; @@ -237,7 +252,7 @@ d_close_t pcclose; d_rdwr_t pcread, pcwrite; d_ioctl_t pcioctl; d_mmap_t pcmmap; -extern struct tty *pccons; +extern struct tty pccons[]; /* controlling TTY */ d_open_t cttyopen; @@ -263,7 +278,7 @@ d_close_t ptcclose; d_rdwr_t ptcread, ptcwrite; d_select_t ptcselect; d_ioctl_t ptyioctl; -extern struct tty *pt_tty[]; +extern struct tty pt_tty[]; #else #define ptsopen (d_open_t *)enxio #define ptsclose (d_close_t *)enxio @@ -288,7 +303,7 @@ d_rdwr_t comwrite; d_ioctl_t comioctl; d_select_t comselect; #define comreset (d_reset_t *)enxio -extern struct tty *com_tty[]; +extern struct tty com_tty[]; #else #define comopen (d_open_t *)enxio #define comclose (d_close_t *)enxio @@ -463,7 +478,7 @@ d_ioctl_t sioioctl; d_select_t sioselect; d_stop_t siostop; #define sioreset (d_reset_t *)enxio -extern struct tty *sio_tty[]; +extern struct tty sio_tty[]; #else #define sioopen (d_open_t *)enxio #define sioclose (d_close_t *)enxio @@ -554,7 +569,7 @@ struct cdevsw cdevsw[] = noioc, nostop, nullreset, NULL, seltrue, nommap, nostrat }, { pcopen, pcclose, pcread, pcwrite, /*12*/ - pcioctl, nullstop, nullreset, &pccons, /* pc */ + pcioctl, nullstop, nullreset, pccons, /* pc */ ttselect, pcmmap, NULL }, { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, NULL, /* sd */ @@ -634,3 +649,108 @@ int mem_no = 2; /* major device number of memory special file */ * provided as a character (raw) device. */ dev_t swapdev = makedev(1, 0); + +/* + * Routine that identifies /dev/mem and /dev/kmem. + * + * A minimal stub routine can always return 0. + */ +int +iskmemdev(dev) + dev_t dev; +{ + + return (major(dev) == 2 && (minor(dev) == 0 || minor(dev) == 1)); +} + +int +iszerodev(dev) + dev_t dev; +{ + return (major(dev) == 2 && minor(dev) == 12); +} + +/* + * Routine to determine if a device is a disk. + * + * A minimal stub routine can always return 0. + */ +int +isdisk(dev, type) + dev_t dev; + int type; +{ + + switch (major(dev)) { + case 0: + case 2: + case 4: + case 6: + case 7: + if (type == VBLK) + return (1); + return (0); + case 3: + case 9: + case 13: + case 15: + case 29: + if (type == VCHR) + return (1); + /* fall through */ + default: + return (0); + } + /* NOTREACHED */ +} + +#define MAXDEV 32 +static int chrtoblktbl[MAXDEV] = { + /* VCHR */ /* VBLK */ + /* 0 */ NODEV, + /* 1 */ NODEV, + /* 2 */ NODEV, + /* 3 */ 0, + /* 4 */ NODEV, + /* 5 */ NODEV, + /* 6 */ NODEV, + /* 7 */ NODEV, + /* 8 */ NODEV, + /* 9 */ 2, + /* 10 */ 3, + /* 11 */ NODEV, + /* 12 */ NODEV, + /* 13 */ 4, + /* 14 */ 5, + /* 15 */ 6, + /* 16 */ NODEV, + /* 17 */ NODEV, + /* 18 */ NODEV, + /* 19 */ NODEV, + /* 20 */ NODEV, + /* 21 */ NODEV, + /* 22 */ NODEV, + /* 23 */ NODEV, + /* 25 */ NODEV, + /* 26 */ NODEV, + /* 27 */ NODEV, + /* 28 */ NODEV, + /* 29 */ 7, + /* 30 */ NODEV, + /* 31 */ NODEV, +}; +/* + * Routine to convert from character to block device number. + * + * A minimal stub routine can always return NODEV. + */ +int +chrtoblk(dev) + dev_t dev; +{ + int blkmaj; + + if (major(dev) >= MAXDEV || (blkmaj = chrtoblktbl[major(dev)]) == NODEV) + return (NODEV); + return (makedev(blkmaj, minor(dev))); +} |
