X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..ca66cea69e6e866fd781ae2260d9474bdd48f2ca:/bsd/dev/memdev.c

diff --git a/bsd/dev/memdev.c b/bsd/dev/memdev.c
index 7e7ab586f..f957be33c 100644
--- a/bsd/dev/memdev.c
+++ b/bsd/dev/memdev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -94,6 +94,7 @@
 #include <vm/pmap.h>
 #include <vm/vm_pager.h>
 #include <mach/memory_object_types.h>
+#include <kern/debug.h>
 
 #include <miscfs/devfs/devfs.h>
 
@@ -140,7 +141,7 @@ static struct cdevsw mdevcdevsw = {
 	/* ioctl */	mdevcioctl,
 	/* stop */	eno_stop,
 	/* reset */	eno_reset,
-	/* ttys */	0,
+	/* ttys */	NULL,
 	/* select */	eno_select,
 	/* mmap */	eno_mmap,
 	/* strategy */	eno_strat,
@@ -171,6 +172,7 @@ int mdevCMajor = -1;
 static int mdevioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p, int is_char);
 dev_t mdevadd(int devid, ppnum_t base, unsigned int size, int phys);
 dev_t mdevlookup(int devid);
+void mdevremoveall(void);
 
 static	int mdevclose(__unused dev_t dev, __unused int flags, 
 					  __unused int devtype, __unused struct proc *p) {
@@ -550,10 +552,10 @@ dev_t mdevadd(int devid, ppnum_t base, unsigned int size, int phys) {
 	}
 	else {
 		if(devid >= 16) {								/* Giving us something bogus? */
-			panic("mdevadd: attempt to explicitly add a bogus memory device: &08X\n", devid);
+			panic("mdevadd: attempt to explicitly add a bogus memory device: %08X\n", devid);
 		}
 		if(mdev[devid].mdFlags &mdInited) {				/* Already there? */
-			panic("mdevadd: attempt to explicitly add a previously defined memory device: &08X\n", devid);
+			panic("mdevadd: attempt to explicitly add a previously defined memory device: %08X\n", devid);
 		}
 	}
 	
@@ -608,3 +610,24 @@ dev_t mdevlookup(int devid) {
 	if(!(mdev[devid].mdFlags & mdInited)) return -1;	/* This one hasn't been defined */
 	return mdev[devid].mdBDev;							/* Return the device number */
 }
+
+void mdevremoveall(void) {
+
+	int i;
+
+	for(i = 0; i < 16; i++) {
+		if(!(mdev[i].mdFlags & mdInited)) continue;	/* Ignore unused mdevs */
+
+		devfs_remove(mdev[i].mdbdevb);			/* Remove the block device */
+		devfs_remove(mdev[i].mdcdevb);			/* Remove the character device */
+
+		mdev[i].mdBase = 0;				/* Clear the mdev's storage */
+		mdev[i].mdSize = 0;
+		mdev[i].mdSecsize = 0;
+		mdev[i].mdFlags = 0;
+		mdev[i].mdBDev = 0;
+		mdev[i].mdCDev = 0;
+		mdev[i].mdbdevb = 0;
+		mdev[i].mdcdevb = 0;
+	}
+}