xnu-4570.71.2.tar.gz

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

diff --git a/osfmk/i386/hpet.h b/osfmk/i386/hpet.h
index 475ace610f7804f2a0f486c8c71a1be7205f3e20..6bc829bb51f848630a358a11b0f0d71d5bbfe29a 100644 (file)
--- a/osfmk/i386/hpet.h
+++ b/osfmk/i386/hpet.h
@@ -62,19 +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;
@@ -84,7 +99,7 @@ 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);
@@ -97,6 +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);