xnu-1228.5.18.tar.gz

[apple/xnu.git] / osfmk / i386 / hpet.h

diff --git a/osfmk/i386/hpet.h b/osfmk/i386/hpet.h
index f3595dce15f8d6dabe4cd35842ed2102ef5ed5ba..72656d06a6f32728d3cb44684ad34f33a01caaf6 100644 (file)
--- a/osfmk/i386/hpet.h
+++ b/osfmk/i386/hpet.h
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2006 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@
  */
 #ifdef KERNEL_PRIVATE
 #ifndef _I386_HPET_H_
@@ -56,19 +62,34 @@ typedef struct hpetReg {
 } hpetReg;
 typedef struct         hpetReg hpetReg_t;
 
+typedef struct hpetTimer {
+       uint64_t        Config;         /* Timer config and capabilities */
+       uint64_t        Compare;        /* Timer comparitor */
+} hpetTimer_t;
+
 struct hpetInfo
 {
-    uint64_t   hpetCvtt2n;
-    uint64_t   hpetCvtn2t;
-    uint64_t   tsc2hpet;
-    uint64_t   hpet2tsc;
-    uint64_t   bus2hpet;
-    uint64_t   hpet2bus;
-    uint32_t   rcbaArea;
-    uint32_t   rcbaAreap;
+       uint64_t        hpetCvtt2n;
+       uint64_t        hpetCvtn2t;
+       uint64_t        tsc2hpet;
+       uint64_t        hpet2tsc;
+       uint64_t        bus2hpet;
+       uint64_t        hpet2bus;
+       uint32_t        rcbaArea;
+       uint32_t        rcbaAreap;
 };
 typedef struct hpetInfo hpetInfo_t;
 
+struct hpetRequest
+{
+       uint32_t        flags;
+       uint32_t        hpetOffset;
+       uint32_t        hpetVector;
+};
+typedef struct hpetRequest hpetRequest_t;
+
+#define HPET_REQFL_64BIT       0x00000001      /* Timer is 64 bits */
+
 extern uint64_t hpetFemto;
 extern uint64_t hpetFreq;
 extern uint64_t hpetCvtt2n;
@@ -91,6 +112,9 @@ extern void hpet_restore(void);
 extern int HPETInterrupt(void);
 #endif
 
+extern int hpet_register_callback(int (*hpet_reqst)(uint32_t apicid, void *arg, hpetRequest_t *hpet), void *arg);
+extern int hpet_request(uint32_t cpu);
+
 extern uint64_t rdHPET(void);
 extern void hpet_get_info(hpetInfo_t *info);