xnu-792.21.3.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..21d8520
--- /dev/null
+++ b/bsd/dev/ppc/chud/chud_bsd_callback.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2003 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
+ * 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_OSREFERENCE_LICENSE_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;
+}