/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1997-2017 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
- * Copyright (c) 1997 by Apple Computer, Inc., all rights reserved
* Copyright (c) 1993 NeXT Computer, Inc.
*
* UNIX Device switch tables.
#include <sys/param.h>
#include <sys/systm.h>
-#include <sys/buf.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/conf.h>
-
-extern int nulldev();
+/* Prototypes that should be elsewhere: */
+extern dev_t chrtoblk(dev_t dev);
+extern int chrtoblk_set(int cdev, int bdev);
struct bdevsw bdevsw[] =
{
/*
* For block devices, every other block of 8 slots is
- * reserved to NeXT. The other slots are available for
+ * reserved for Apple. The other slots are available for
* the user. This way we can both add new entries without
- * running into each other. Be sure to fill in NeXT's
+ * running into each other. Be sure to fill in Apple's
* 8 reserved slots when you jump over us -- we'll do the
* same for you.
*/
- /* 0 - 7 are reserved to NeXT */
+ /* 0 - 7 are reserved for Apple */
NO_BDEVICE, /* 0*/
NO_BDEVICE, /* 1*/
NO_BDEVICE, /*14*/
NO_BDEVICE, /*15*/
- /* 16 - 23 are reserved to NeXT */
+ /* 16 - 23 are reserved for Apple */
NO_BDEVICE, /*16*/
NO_BDEVICE, /*17*/
NO_BDEVICE, /*18*/
NO_BDEVICE, /*23*/
};
-int nblkdev = sizeof (bdevsw) / sizeof (bdevsw[0]);
+const int nblkdev = sizeof(bdevsw) / sizeof(bdevsw[0]);
extern struct tty *km_tty[];
-extern int cnopen(),cnclose(),cnread(),cnwrite(),cnioctl(),
- cnselect(),cngetc(), cnputc(dev_t dev, char c);
-extern int kmopen(),kmclose(),kmread(),kmwrite(),kmioctl(),
- kmgetc(), kmputc(dev_t dev, char c);
-extern int sgopen(),sgclose(), sgioctl();
+extern d_open_t cnopen;
+extern d_close_t cnclose;
+extern d_read_t cnread;
+extern d_write_t cnwrite;
+extern d_ioctl_t cnioctl;
+extern d_select_t cnselect;
+extern d_open_t kmopen;
+extern d_close_t kmclose;
+extern d_read_t kmread;
+extern d_write_t kmwrite;
+extern d_ioctl_t kmioctl;
+extern d_open_t sgopen;
+extern d_close_t sgclose;
+extern d_ioctl_t sgioctl;
#if NVOL > 0
-extern int volopen(),volclose(),volioctl();
+extern d_open_t volopen;
+extern d_close_t volclose;
+extern d_ioctl_t volioctl;
#else
#define volopen eno_opcl
#define volclose eno_opcl
#define volioctl eno_ioctl
#endif
-extern int cttyopen(), cttyread(), cttywrite(), cttyioctl(), cttyselect();
+extern d_open_t cttyopen;
+extern d_read_t cttyread;
+extern d_write_t cttywrite;
+extern d_ioctl_t cttyioctl;
+extern d_select_t cttyselect;
-extern int mmread(),mmwrite();
-#define mmselect seltrue
+extern d_read_t mmread;
+extern d_write_t mmwrite;
+extern d_ioctl_t mmioctl;
+#define mmselect (select_fcn_t *)seltrue
#define mmmmap eno_mmap
#include <pty.h>
#if NPTY > 0
-extern struct tty *pt_tty[];
-extern int ptsopen(),ptsclose(),ptsread(),ptswrite(),ptsstop(),ptsputc();
-extern int ptcopen(),ptcclose(),ptcread(),ptcwrite(),ptcselect(),
- ptyioctl();
+extern d_open_t ptsopen;
+extern d_close_t ptsclose;
+extern d_read_t ptsread;
+extern d_write_t ptswrite;
+extern d_stop_t ptsstop;
+extern d_select_t ptsselect;
+extern d_open_t ptcopen;
+extern d_close_t ptcclose;
+extern d_read_t ptcread;
+extern d_write_t ptcwrite;
+extern d_select_t ptcselect;
+extern d_ioctl_t ptyioctl;
#else
#define ptsopen eno_opcl
#define ptsclose eno_opcl
#define ptsread eno_rdwrt
#define ptswrite eno_rdwrt
#define ptsstop nulldev
-#define ptsputc nulldev
#define ptcopen eno_opcl
#define ptcclose eno_opcl
#define ptyioctl eno_ioctl
#endif
-extern int logopen(),logclose(),logread(),logioctl(),logselect();
-extern int fdesc_open(), fdesc_read(), fdesc_write(),
- fdesc_ioctl(), fdesc_select();
-
-extern int seltrue();
+extern d_open_t logopen;
+extern d_close_t logclose;
+extern d_read_t logread;
+extern d_ioctl_t logioctl;
+extern d_select_t logselect;
-struct cdevsw cdevsw[] =
-{
- /*
- * For character devices, every other block of 16 slots is
- * reserved to NeXT. The other slots are available for
- * the user. This way we can both add new entries without
- * running into each other. Be sure to fill in NeXT's
- * 16 reserved slots when you jump over us -- we'll do the
- * same for you.
- */
+extern d_open_t oslog_streamopen;
+extern d_close_t oslog_streamclose;
+extern d_read_t oslog_streamread;
+extern d_ioctl_t oslog_streamioctl;
+extern d_select_t oslog_streamselect;
- /* 0 - 15 are reserved to NeXT */
+extern d_open_t oslogopen;
+extern d_close_t oslogclose;
+extern d_select_t oslogselect;
+extern d_ioctl_t oslogioctl;
- {
- cnopen, cnclose, cnread, cnwrite, /* 0*/
- cnioctl, nulldev, nulldev, 0, cnselect,
- eno_mmap, eno_strat, cngetc, cnputc, D_TTY
- },
- NO_CDEVICE, /* 1*/
- {
- cttyopen, nulldev, cttyread, cttywrite, /* 2*/
- cttyioctl, nulldev, nulldev, 0, cttyselect,
- eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
- },
- {
- nulldev, nulldev, mmread, mmwrite, /* 3*/
- eno_ioctl, nulldev, nulldev, 0, mmselect,
- mmmmap, eno_strat, eno_getc, eno_putc, 0
- },
- {
- ptsopen, ptsclose, ptsread, ptswrite, /* 4*/
- ptyioctl, ptsstop, nulldev, pt_tty, ttselect,
- eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
- },
- {
- ptcopen, ptcclose, ptcread, ptcwrite, /* 5*/
- ptyioctl, nulldev, nulldev, 0, ptcselect,
- eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
- },
- {
- logopen, logclose, logread, eno_rdwrt, /* 6*/
- logioctl, eno_stop, nulldev, 0, logselect,
- eno_mmap, eno_strat, eno_getc, eno_putc, 0
- },
- NO_CDEVICE, /* 7*/
- NO_CDEVICE, /* 8*/
- NO_CDEVICE, /* 9*/
- NO_CDEVICE, /*10*/
- NO_CDEVICE, /*11*/
- {
- kmopen, kmclose, kmread, kmwrite, /*12*/
- kmioctl, nulldev, nulldev, km_tty, ttselect,
- eno_mmap, eno_strat, kmgetc, kmputc, 0
- },
- NO_CDEVICE, /*13*/
- NO_CDEVICE, /*14*/
- NO_CDEVICE, /*15*/
+#define nullopen (d_open_t *)&nulldev
+#define nullclose (d_close_t *)&nulldev
+#define nullread (d_read_t *)&nulldev
+#define nullwrite (d_write_t *)&nulldev
+#define nullioctl (d_ioctl_t *)&nulldev
+#define nullselect (d_select_t *)&nulldev
+#define nullstop (d_stop_t *)&nulldev
+#define nullreset (d_reset_t *)&nulldev
- /* 16 - 31 are reserved to the user */
- NO_CDEVICE, /*16*/
- NO_CDEVICE, /*17*/
- NO_CDEVICE, /*18*/
- NO_CDEVICE, /*19*/
- NO_CDEVICE, /*20*/
- NO_CDEVICE, /*21*/
- NO_CDEVICE, /*22*/
- NO_CDEVICE, /*23*/
- NO_CDEVICE, /*24*/
- NO_CDEVICE, /*25*/
- NO_CDEVICE, /*26*/
- NO_CDEVICE, /*27*/
- NO_CDEVICE, /*28*/
- NO_CDEVICE, /*29*/
- NO_CDEVICE, /*30*/
- NO_CDEVICE, /*31*/
+struct cdevsw cdevsw[] = {
+ /*
+ * To add character devices to this table dynamically, use cdevsw_add.
+ */
- /* 32 - 47 are reserved to NeXT */
- {
- fdesc_open, eno_opcl, fdesc_read, fdesc_write, /*32*/
- fdesc_ioctl, eno_stop, eno_reset, 0, fdesc_select,
- eno_mmap, eno_strat, eno_getc, eno_putc, 0
- },
-#if 1
- NO_CDEVICE,
-#else
- {
- sgopen, sgclose, eno_rdwrt, eno_rdwrt, /*33*/
- sgioctl, eno_stop, eno_reset, 0, eno_select,
- eno_mmap, eno_strat, eno_getc, eno_putc, D_TAPE
- },
-#endif
- NO_CDEVICE, /*34*/
- NO_CDEVICE, /*35*/
- NO_CDEVICE, /*36*/
- NO_CDEVICE, /*37*/
- NO_CDEVICE, /*38*/
- NO_CDEVICE, /*39*/
- NO_CDEVICE, /*40*/
- NO_CDEVICE, /*41*/
- {
- volopen, volclose, eno_rdwrt, eno_rdwrt, /*42*/
- volioctl, eno_stop, eno_reset, 0, seltrue,
- eno_mmap, eno_strat, eno_getc, eno_putc, 0
- },
+ [0] = {
+ cnopen, cnclose, cnread, cnwrite,
+ cnioctl, nullstop, nullreset, 0, cnselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
+ },
+ [1] = NO_CDEVICE,
+ [2] = {
+ cttyopen, nullclose, cttyread, cttywrite,
+ cttyioctl, nullstop, nullreset, 0, cttyselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
+ },
+ [3] = {
+ nullopen, nullclose, mmread, mmwrite,
+ mmioctl, nullstop, nullreset, 0, mmselect,
+ mmmmap, eno_strat, eno_getc, eno_putc, D_DISK
+ },
+ [PTC_MAJOR] = {
+ ptsopen, ptsclose, ptsread, ptswrite,
+ ptyioctl, ptsstop, nullreset, 0, ptsselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
+ },
+ [PTS_MAJOR] = {
+ ptcopen, ptcclose, ptcread, ptcwrite,
+ ptyioctl, nullstop, nullreset, 0, ptcselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, D_TTY
+ },
+ [6] = {
+ logopen, logclose, logread, eno_rdwrt,
+ logioctl, eno_stop, nullreset, 0, logselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, 0
+ },
+ [7] = {
+ oslogopen, oslogclose, eno_rdwrt, eno_rdwrt,
+ oslogioctl, eno_stop, nullreset, 0, oslogselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, 0
+ },
+ [8] = {
+ oslog_streamopen, oslog_streamclose, oslog_streamread, eno_rdwrt,
+ oslog_streamioctl, eno_stop, nullreset, 0, oslog_streamselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, 0
+ },
+ [9 ... 11] = NO_CDEVICE,
+ [12] = {
+ kmopen, kmclose, kmread, kmwrite,
+ kmioctl, nullstop, nullreset, km_tty, ttselect,
+ eno_mmap, eno_strat, eno_getc, eno_putc, 0
+ },
+ [13 ... 41] = NO_CDEVICE,
+ [42] = {
+ volopen, volclose, eno_rdwrt, eno_rdwrt,
+ volioctl, eno_stop, eno_reset, 0, (select_fcn_t *) seltrue,
+ eno_mmap, eno_strat, eno_getc, eno_putc, 0
+ }
};
-int nchrdev = sizeof (cdevsw) / sizeof (cdevsw[0]);
+const int nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
+uint64_t cdevsw_flags[sizeof(cdevsw) / sizeof(cdevsw[0])];
#include <sys/vnode.h> /* for VCHR and VBLK */
/*
* return true if a disk
*/
int
-isdisk(dev, type)
- dev_t dev;
- int type;
+isdisk(dev_t dev, int type)
{
- switch (major(dev)) {
- case 1: /* fd: floppy */
- case 6: /* sd: scsi disk */
- case 3: /* ide: */
- if (type == VBLK)
- return(1);
- break;
- case 14: /* sd: scsi disk */
- case 41: /* fd: floppy */
- if (type == VCHR)
- return(1);
+ dev_t maj = major(dev);
+
+ switch (type) {
+ case VCHR:
+ maj = chrtoblk(maj);
+ if (maj == NODEV) {
+ break;
+ }
+ /* FALL THROUGH */
+ case VBLK:
+ if (bdevsw[maj].d_type == D_DISK) {
+ return (1);
+ }
break;
}
return(0);
/* 8 */ NODEV, /* 9 */ NODEV,
/* 10 */ NODEV, /* 11 */ NODEV,
/* 12 */ NODEV, /* 13 */ NODEV,
- /* 14 */ 6, /* 15 */ NODEV,
+ /* 14 */ NODEV, /* 15 */ NODEV,
/* 16 */ NODEV, /* 17 */ NODEV,
/* 18 */ NODEV, /* 19 */ NODEV,
/* 20 */ NODEV, /* 21 */ NODEV,
/* 34 */ NODEV, /* 35 */ NODEV,
/* 36 */ NODEV, /* 37 */ NODEV,
/* 38 */ NODEV, /* 39 */ NODEV,
- /* 40 */ NODEV, /* 41 */ 1,
+ /* 40 */ NODEV, /* 41 */ NODEV,
/* 42 */ NODEV, /* 43 */ NODEV,
/* 44 */ NODEV,
};
* convert chr dev to blk dev
*/
dev_t
-chrtoblk(dev)
- dev_t dev;
+chrtoblk(dev_t dev)
{
int blkmaj;
return(makedev(blkmaj, minor(dev)));
}
-/*
- * Returns true if dev is /dev/mem or /dev/kmem.
- */
-int iskmemdev(dev)
- dev_t dev;
+int
+chrtoblk_set(int cdev, int bdev)
{
-
- return (major(dev) == 3 && minor(dev) < 2);
+ if (cdev >= nchrdev)
+ return (-1);
+ if (bdev != NODEV && bdev >= nblkdev)
+ return (-1);
+ chrtoblktab[cdev] = bdev;
+ return 0;
}
+
projects / apple / xnu.git / blobdiff