From f8fa1652a01c35d23dbca6120abc0e39ab298800 Mon Sep 17 00:00:00 2001
From: Alex <enderice2@users.noreply.github.com>
Date: Tue, 1 Nov 2022 01:56:00 +0200
Subject: [PATCH] Added driver API header

---
 DAPI.hpp | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 DAPI.hpp

diff --git a/DAPI.hpp b/DAPI.hpp
new file mode 100644
index 0000000..8c40856
--- /dev/null
+++ b/DAPI.hpp
@@ -0,0 +1,103 @@
+#ifndef __FENNIX_DRIVER_API_H__
+#define __FENNIX_DRIVER_API_H__
+
+enum DriverReturnCode
+{
+    ERROR,
+    OK,
+    NOT_IMPLEMENTED,
+    NOT_FOUND,
+    NOT_READY,
+    NOT_AVAILABLE,
+    NOT_AUTHORIZED,
+    NOT_VALID,
+    NOT_ACCEPTED,
+    INVALID_KERNEL_API,
+    DEVICE_NOT_SUPPORTED,
+    KERNEL_API_VERSION_NOT_SUPPORTED
+};
+
+enum DriverBindType
+{
+    BIND_NULL,
+    BIND_INTERRUPT,
+    BIND_PROCESS,
+    BIND_PCI
+};
+
+struct KernelAPI
+{
+    struct KAPIVersion
+    {
+        int Major;
+        int Minor;
+        int Patch;
+    } Version;
+
+    struct KAPIInfo
+    {
+        unsigned long Offset;
+        unsigned long DriverUID;
+    } Info;
+
+    struct KAPIMemory
+    {
+        unsigned long PageSize;
+        void *(*RequestPage)(unsigned long Size);
+        void (*FreePage)(void *Page, unsigned long Size);
+    } Memory;
+
+    struct KAPIPCI
+    {
+        char *(*GetDeviceName)(unsigned int VendorID, unsigned int DeviceID);
+        void (*Write)(unsigned int Value);
+    } PCI;
+
+    struct KAPIUtilities
+    {
+        void (*DebugPrint)(char *String, unsigned long DriverUID);
+        void (*DisplayPrint)(char *Value);
+        void *(*memcpy)(void *Destination, void *Source, unsigned long Size);
+    } Util;
+
+    struct KAPIDriverTalk
+    {
+        /** @brief Connects to the network manager */
+        struct
+        {
+            void (*SendPacket)(unsigned int DriverID, unsigned char *Data, unsigned short Size);
+            void (*ReceivePacket)(unsigned int DriverID, unsigned char *Data, unsigned short Size);
+        } Network;
+    } Commmand;
+
+} __attribute__((packed));
+
+enum CallbackReason
+{
+    UnknownReason,
+    AcknowledgeReason,
+    SendReason,
+    ReceiveReason,
+    ConfigurationReason,
+    BindReason,
+    UnbindReason,
+    InterruptReason,
+    ProcessReason
+};
+
+struct KernelCallback
+{
+    CallbackReason Reason;
+    void *RawPtr;
+    unsigned long RawData;
+
+    /** @brief When the kernel wants to send a packet. */
+    struct
+    {
+        void *Data;
+        unsigned long Length;
+    } NetworkCallback;
+
+} __attribute__((packed));
+
+#endif // !__FENNIX_DRIVER_API_H__