xnu-7195.60.75.tar.gz

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

diff --git a/osfmk/i386/hpet.h b/osfmk/i386/hpet.h
index 475ace610f7804f2a0f486c8c71a1be7205f3e20..7bcbf77e2612e29e7aca1b82ea9ac620a1862133 100644 (file)
--- a/osfmk/i386/hpet.h
+++ b/osfmk/i386/hpet.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2006 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
@@ -11,10 +11,10 @@
  * 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,
@@ -22,7 +22,7 @@
  * 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@
  */
 #ifdef KERNEL_PRIVATE
@@ -39,42 +39,55 @@
  *     Memory mapped registers for the HPET
  */
 typedef struct hpetReg {
-       uint64_t        GCAP_ID;                /* General capabilities */
-       uint64_t        rsv1;
-       uint64_t        GEN_CONF;               /* General configuration */
-       uint64_t        rsv2;
-       uint64_t        GINTR_STA;              /* General Interrupt status */
-       uint64_t        rsv3[25];
-       uint64_t        MAIN_CNT;               /* Main counter */
-       uint64_t        rsv4;
-       uint64_t        TIM0_CONF;              /* Timer 0 config and cap */
-#define                        TIM_CONF 0
-#define                        Tn_INT_ENB_CNF 4
-       uint64_t        TIM0_COMP;              /* Timer 0 comparator */
-#define                        TIM_COMP 8
-       uint64_t        rsv5[2];
-       uint64_t        TIM1_CONF;              /* Timer 1 config and cap */
-       uint64_t        TIM1_COMP;              /* Timer 1 comparator */
-       uint64_t        rsv6[2];
-       uint64_t        TIM2_CONF;              /* Timer 2 config and cap */
-       uint64_t        TIM2_COMP;              /* Timer 2 comparator */
-       uint64_t        rsv7[2];
+       uint64_t        GCAP_ID;                /* General capabilities */
+       uint64_t        rsv1;
+       uint64_t        GEN_CONF;               /* General configuration */
+       uint64_t        rsv2;
+       uint64_t        GINTR_STA;              /* General Interrupt status */
+       uint64_t        rsv3[25];
+       uint64_t        MAIN_CNT;               /* Main counter */
+       uint64_t        rsv4;
+       uint64_t        TIM0_CONF;              /* Timer 0 config and cap */
+#define                 TIM_CONF 0
+#define                 Tn_INT_ENB_CNF 4
+       uint64_t        TIM0_COMP;              /* Timer 0 comparator */
+#define                 TIM_COMP 8
+       uint64_t        rsv5[2];
+       uint64_t        TIM1_CONF;              /* Timer 1 config and cap */
+       uint64_t        TIM1_COMP;              /* Timer 1 comparator */
+       uint64_t        rsv6[2];
+       uint64_t        TIM2_CONF;              /* Timer 2 config and cap */
+       uint64_t        TIM2_COMP;              /* Timer 2 comparator */
+       uint64_t        rsv7[2];
 } hpetReg;
-typedef struct         hpetReg hpetReg_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;
+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;
 };
 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;
@@ -84,7 +97,7 @@ extern uint64_t hpet2tsc;
 extern uint64_t bus2hpet;
 extern uint64_t hpet2bus;
 
-extern uint32_t rcbaArea;                      
+extern vm_offset_t rcbaArea;
 extern uint32_t rcbaAreap;
 
 extern void map_rcbaAread(void);
@@ -97,12 +110,15 @@ 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);
 
-#define hpetAddr       0xFED00000
-#define hptcAE                 0x80
+#define hpetAddr        0xFED00000
+#define hptcAE          0x80
 
-#endif /* _I386_HPET_H_ */
+#endif  /* _I386_HPET_H_ */
 
-#endif /* KERNEL_PRIVATE */
+#endif  /* KERNEL_PRIVATE */