add system time, clean up pci into pci.sys, clean up syscall names, fix USERAPC1 typo

code/public/ntlite/ddi/hal_api.h

@@ -27,22 +27,42 @@ typedef struct HAL_TIMER {
     uint8_t  IrqNumber;
 } HAL_TIMER;
 
-typedef struct HAL_PCI {
-    uint32_t (*Read32)(uint8_t bus, uint8_t dev,
-                             uint8_t fn, uint8_t reg);
-    void     (*Write32)(uint8_t bus, uint8_t dev,
-                              uint8_t fn, uint8_t reg, uint32_t val);
-    bool     (*FindDevice)(uint16_t vendor, uint16_t device,
-                           uint8_t* bus, uint8_t* dev, uint8_t* fn);
-    bool     (*FindClass)(uint8_t classCode, uint8_t subclass,
-                          uint8_t* bus, uint8_t* dev, uint8_t* fn);
-    // Returns the IRQ line from PCI config space (register 0x3C, byte 0).
-    // Returns 0xFF if no interrupt is wired.
-    uint8_t  (*GetIrqLine)(uint8_t bus, uint8_t dev, uint8_t fn);
 
-    // Program a PCI MSI capability to deliver to vector (0x20 + irqSlot).
-    // irqSlot must correspond to a kernel IRQ stub/vector slot.
-    KSTATUS  (*EnableMsi)(uint8_t bus, uint8_t dev, uint8_t fn, uint8_t irqSlot);
+#define HAL_RTC_TIME_FLAG_VALID    0x0001u
+#define HAL_RTC_TIME_FLAG_RTC      0x0002u
+
+typedef struct HAL_RTC_TIME {
+    uint16_t Year;
+    uint8_t  Month;
+    uint8_t  Day;
+    uint8_t  Hour;
+    uint8_t  Minute;
+    uint8_t  Second;
+    uint32_t Nanosecond;
+    uint16_t Flags;
+    uint16_t Reserved;
+} HAL_RTC_TIME;
+
+typedef struct HAL_RTC {
+    KSTATUS (*QueryTime)(HAL_RTC_TIME* outTime);
+} HAL_RTC;
+
+typedef struct HAL_PCI {
+    // Raw PCI configuration access.  Policy-level operations such as
+    // enumeration, BAR decoding, interrupt discovery, and MSI programming
+    // belong to pci.sys.
+    uint32_t (*Read32)(uint16_t segment,
+                       uint8_t bus,
+                       uint8_t dev,
+                       uint8_t fn,
+                       uint16_t offset);
+
+    void     (*Write32)(uint16_t segment,
+                        uint8_t bus,
+                        uint8_t dev,
+                        uint8_t fn,
+                        uint16_t offset,
+                        uint32_t value);
 } HAL_PCI;
 
 typedef struct HAL_INTC {
@@ -63,6 +83,7 @@ typedef struct HAL_API {
     void         *(*PhysToVirt)(uint64_t physAddr);
     HAL_SCREEN   Screen;
     HAL_TIMER    Timer;
+    HAL_RTC      Rtc;
     HAL_PCI      Pci;
     HAL_INTC     Intc;
     HAL_POWER    Power;
@@ -87,7 +108,7 @@ typedef struct HAL_INIT_PARAMS {
     void*      (*AllocatePool)(size_t size);
 } HAL_INIT_PARAMS;
 
-#define HAL_API_VERSION  3
+#define HAL_API_VERSION  5
 
 __declspec(dllexport) const HAL_API* HalGetApi(void);
 __declspec(dllexport) void HalRegisterScheduler(void (*pKeSchedulerTick)(void));