/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
* 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.
- *
+ *
* 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,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
#include <sys/appleapiopts.h>
#include <sys/cdefs.h>
+#include <sys/queue.h>
+#include <stdint.h>
/*
* Definitions of device driver entry switches
* Types for d_type.
* These are returned by ioctl FIODTYPE
*/
-#define D_TAPE 1
-#define D_DISK 2
-#define D_TTY 3
+#define D_TAPE 1
+#define D_DISK 2
+#define D_TTY 3
#ifdef KERNEL
-/*
+/*
* Device switch function types.
*/
typedef int open_close_fcn_t(dev_t dev, int flags, int devtype,
- struct proc *p);
+ struct proc *p);
typedef struct tty *d_devtotty_t(dev_t dev);
-typedef void strategy_fcn_t(struct buf *bp);
+typedef void strategy_fcn_t(struct buf *bp);
typedef int ioctl_fcn_t(dev_t dev, u_long cmd, caddr_t data,
- int fflag, struct proc *p);
+ int fflag, struct proc *p);
typedef int dump_fcn_t(void); /* parameters vary by architecture */
-typedef int psize_fcn_t(dev_t dev);
+typedef int psize_fcn_t(dev_t dev);
typedef int read_write_fcn_t(dev_t dev, struct uio *uio, int ioflag);
-typedef int stop_fcn_t(struct tty *tp, int rw);
-typedef int reset_fcn_t(int uban);
-typedef int select_fcn_t(dev_t dev, int which, void * wql, struct proc *p);
-typedef int mmap_fcn_t(void);
-
-#define d_open_t open_close_fcn_t
-#define d_close_t open_close_fcn_t
-#define d_read_t read_write_fcn_t
-#define d_write_t read_write_fcn_t
-#define d_ioctl_t ioctl_fcn_t
-#define d_stop_t stop_fcn_t
-#define d_reset_t reset_fcn_t
-#define d_select_t select_fcn_t
-#define d_mmap_t mmap_fcn_t
-#define d_strategy_t strategy_fcn_t
+typedef int stop_fcn_t(struct tty *tp, int rw);
+typedef int reset_fcn_t(int uban);
+typedef int select_fcn_t(dev_t dev, int which, void * wql, struct proc *p);
+typedef int mmap_fcn_t(void);
+
+#define d_open_t open_close_fcn_t
+#define d_close_t open_close_fcn_t
+#define d_read_t read_write_fcn_t
+#define d_write_t read_write_fcn_t
+#define d_ioctl_t ioctl_fcn_t
+#define d_stop_t stop_fcn_t
+#define d_reset_t reset_fcn_t
+#define d_select_t select_fcn_t
+#define d_mmap_t mmap_fcn_t
+#define d_strategy_t strategy_fcn_t
__BEGIN_DECLS
-int enodev(void);
-void enodev_strat(void);
+int enodev(void);
+void enodev_strat(void);
__END_DECLS
/*
* Versions of enodev() pointer, cast to appropriate function type. For use
* in empty devsw slots.
*/
-#define eno_opcl ((open_close_fcn_t *)&enodev)
-#define eno_strat ((strategy_fcn_t *)&enodev_strat)
-#define eno_ioctl ((ioctl_fcn_t *)&enodev)
-#define eno_dump ((dump_fcn_t *)&enodev)
-#define eno_psize ((psize_fcn_t *)&enodev)
-#define eno_rdwrt ((read_write_fcn_t *)&enodev)
-#define eno_stop ((stop_fcn_t *)&enodev)
-#define eno_reset ((reset_fcn_t *)&enodev)
-#define eno_mmap ((mmap_fcn_t *)&enodev)
-#define eno_select ((select_fcn_t *)&enodev)
+#define eno_opcl ((open_close_fcn_t *)&enodev)
+#define eno_strat ((strategy_fcn_t *)&enodev_strat)
+#define eno_ioctl ((ioctl_fcn_t *)&enodev)
+#define eno_dump ((dump_fcn_t *)&enodev)
+#define eno_psize ((psize_fcn_t *)&enodev)
+#define eno_rdwrt ((read_write_fcn_t *)&enodev)
+#define eno_stop ((stop_fcn_t *)&enodev)
+#define eno_reset ((reset_fcn_t *)&enodev)
+#define eno_mmap ((mmap_fcn_t *)&enodev)
+#define eno_select ((select_fcn_t *)&enodev)
/* For source backward compatibility only! */
-#define eno_getc ((void *)&enodev)
-#define eno_putc ((void *)&enodev)
+#define eno_getc ((void *)&enodev)
+#define eno_putc ((void *)&enodev)
/*
* Block device switch table
*/
struct bdevsw {
- open_close_fcn_t *d_open;
- open_close_fcn_t *d_close;
- strategy_fcn_t *d_strategy;
- ioctl_fcn_t *d_ioctl;
- dump_fcn_t *d_dump;
- psize_fcn_t *d_psize;
- int d_type;
+ open_close_fcn_t *d_open;
+ open_close_fcn_t *d_close;
+ strategy_fcn_t *d_strategy;
+ ioctl_fcn_t *d_ioctl;
+ dump_fcn_t *d_dump;
+ psize_fcn_t *d_psize;
+ int d_type;
};
d_devtotty_t nodevtotty;
-d_write_t nowrite;
+d_write_t nowrite;
#ifdef KERNEL_PRIVATE
extern struct bdevsw bdevsw[];
+extern int (*bootcache_contains_block)(dev_t device, u_int64_t blkno);
#endif /* KERNEL_PRIVATE */
/*
* Contents of empty bdevsw slot.
*/
-#define NO_BDEVICE \
- { eno_opcl, eno_opcl, eno_strat, eno_ioctl, \
- eno_dump, eno_psize, 0 }
-
+#define NO_BDEVICE \
+ { eno_opcl, eno_opcl, eno_strat, eno_ioctl, \
+ eno_dump, eno_psize, 0 }
+
/*
* Character device switch table
*/
struct cdevsw {
- open_close_fcn_t *d_open;
- open_close_fcn_t *d_close;
- read_write_fcn_t *d_read;
- read_write_fcn_t *d_write;
- ioctl_fcn_t *d_ioctl;
- stop_fcn_t *d_stop;
- reset_fcn_t *d_reset;
- struct tty **d_ttys;
- select_fcn_t *d_select;
- mmap_fcn_t *d_mmap;
- strategy_fcn_t *d_strategy;
- void *d_reserved_1;
- void *d_reserved_2;
- int d_type;
+ open_close_fcn_t *d_open;
+ open_close_fcn_t *d_close;
+ read_write_fcn_t *d_read;
+ read_write_fcn_t *d_write;
+ ioctl_fcn_t *d_ioctl;
+ stop_fcn_t *d_stop;
+ reset_fcn_t *d_reset;
+ struct tty **d_ttys;
+ select_fcn_t *d_select;
+ mmap_fcn_t *d_mmap;
+ strategy_fcn_t *d_strategy;
+ void *d_reserved_1;
+ void *d_reserved_2;
+ int d_type;
};
+#ifdef BSD_KERNEL_PRIVATE
+
+extern uint64_t cdevsw_flags[];
+#define CDEVSW_SELECT_KQUEUE 0x01
+#define CDEVSW_USE_OFFSET 0x02
+#define CDEVSW_IS_PTC 0x04
+#define CDEVSW_IS_PTS 0x08
+
+struct thread;
+
+typedef struct devsw_lock {
+ TAILQ_ENTRY(devsw_lock) dl_list;
+ struct thread *dl_thread;
+ dev_t dl_dev;
+ int dl_mode;
+} *devsw_lock_t;
+
+#endif /* BSD_KERNEL_PRIVATE */
-#ifdef KERNEL_PRIVATE
-extern struct cdevsw cdevsw[];
-#endif /* KERNEL_PRIVATE */
/*
* Contents of empty cdevsw slot.
*/
-#define NO_CDEVICE \
- { \
- eno_opcl, eno_opcl, eno_rdwrt, eno_rdwrt, \
- eno_ioctl, eno_stop, eno_reset, 0, \
- (select_fcn_t *)seltrue, eno_mmap, eno_strat, eno_getc, \
- eno_putc, 0 \
+#define NO_CDEVICE \
+ { \
+ eno_opcl, eno_opcl, eno_rdwrt, eno_rdwrt, \
+ eno_ioctl, eno_stop, eno_reset, 0, \
+ (select_fcn_t *)seltrue, eno_mmap, eno_strat, eno_getc, \
+ eno_putc, 0 \
}
-
+
#endif /* KERNEL */
-
+
#ifdef KERNEL_PRIVATE
typedef int l_open_t (dev_t dev, struct tty *tp);
typedef int l_close_t(struct tty *tp, int flags);
typedef int l_read_t (struct tty *tp, struct uio *uio, int flag);
typedef int l_write_t(struct tty *tp, struct uio *uio, int flag);
typedef int l_ioctl_t(struct tty *tp, u_long cmd, caddr_t data, int flag,
- struct proc *p);
+ struct proc *p);
typedef int l_rint_t (int c, struct tty *tp);
typedef void l_start_t(struct tty *tp);
typedef int l_modem_t(struct tty *tp, int flag);
* Line discipline switch table
*/
struct linesw {
- l_open_t *l_open;
- l_close_t *l_close;
- l_read_t *l_read;
- l_write_t *l_write;
- l_ioctl_t *l_ioctl;
- l_rint_t *l_rint;
- l_start_t *l_start;
- l_modem_t *l_modem;
+ l_open_t *l_open;
+ l_close_t *l_close;
+ l_read_t *l_read;
+ l_write_t *l_write;
+ l_ioctl_t *l_ioctl;
+ l_rint_t *l_rint;
+ l_start_t *l_start;
+ l_modem_t *l_modem;
};
extern struct linesw linesw[];
-extern int nlinesw;
-
-int ldisc_register(int , struct linesw *);
+extern const int nlinesw;
+
+int ldisc_register(int, struct linesw *);
void ldisc_deregister(int);
#define LDISC_LOAD -1 /* Loadable line discipline */
* Swap device table
*/
struct swdevt {
- dev_t sw_dev;
- int sw_flags;
- int sw_nblks;
- struct vnode *sw_vp;
+ dev_t sw_dev;
+ int sw_flags;
+ int sw_nblks;
+ struct vnode *sw_vp;
};
-#define SW_FREED 0x01
-#define SW_SEQUENTIAL 0x02
-#define sw_freed sw_flags /* XXX compat */
+#define SW_FREED 0x01
+#define SW_SEQUENTIAL 0x02
+#define sw_freed sw_flags /* XXX compat */
extern struct swdevt swdevt[];
* else -1
*/
__BEGIN_DECLS
+#ifdef KERNEL_PRIVATE
+void devsw_init(void);
+extern struct cdevsw cdevsw[];
+extern int cdevsw_setkqueueok(int, struct cdevsw*, int);
+#endif /* KERNEL_PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE
+extern void devsw_lock(dev_t, int);
+extern void devsw_unlock(dev_t, int);
+#endif /* BSD_KERNEL_PRIVATE */
+
int bdevsw_isfree(int);
int bdevsw_add(int, struct bdevsw *);
int bdevsw_remove(int, struct bdevsw *);
projects / apple / xnu.git / blobdiff