xnu-792.12.6.tar.gz

[apple/xnu.git] / bsd / dev / ppc / chud / chud_bsd_callback.c

diff --git a/bsd/dev/ppc/chud/chud_bsd_callback.c b/bsd/dev/ppc/chud/chud_bsd_callback.c
new file mode 100644 (file)
index 0000000..85b3ff3
--- /dev/null
+++ b/bsd/dev/ppc/chud/chud_bsd_callback.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_OSREFERENCE_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 
+ * 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.
+ *
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ */
+
+#include <stdint.h>
+#include <mach/boolean.h>
+#include <mach/mach_types.h>
+
+#include <sys/syscall.h>
+#include <sys/types.h> /* u_int */
+#include <sys/proc.h> /* struct proc */
+#include <sys/systm.h> /* struct sysent */
+#include <sys/sysproto.h>
+
+#pragma mark **** kern debug ****
+typedef void (*chudxnu_kdebug_callback_func_t)(uint32_t debugid, uint32_t arg0, uint32_t arg1, uint32_t arg2, uint32_t arg3, uint32_t arg4);
+static chudxnu_kdebug_callback_func_t kdebug_callback_fn = NULL;
+
+extern void kdbg_control_chudxnu(int val, void *fn);
+extern unsigned int kdebug_enable;
+
+static void chudxnu_private_kdebug_callback(unsigned int debugid, unsigned int arg0, unsigned int arg1, unsigned int arg2, unsigned int arg3, unsigned int arg4)
+{
+    if(kdebug_callback_fn) {
+        (kdebug_callback_fn)(debugid, arg0, arg1, arg2, arg3, arg4);
+    }
+}
+
+__private_extern__
+kern_return_t chudxnu_kdebug_callback_enter(chudxnu_kdebug_callback_func_t func)
+{
+    kdebug_callback_fn = func;
+
+    kdbg_control_chud(TRUE, (void *)chudxnu_private_kdebug_callback);
+    kdebug_enable |= 0x10;
+
+    return KERN_SUCCESS;
+}
+
+__private_extern__
+kern_return_t chudxnu_kdebug_callback_cancel(void)
+{
+    kdebug_callback_fn = NULL;
+    kdbg_control_chud(FALSE, NULL);
+    kdebug_enable &= ~(0x10);
+
+    return KERN_SUCCESS;
+}