feat: reworked driver pci setup

kernel/drivers/pci.h

@@ -4,21 +4,87 @@
 
 #ifndef NEW_KERNEL_PCI_H
 #define NEW_KERNEL_PCI_H
+
 #include <types.h>
 
 #define PCI_CLASS_MASS_STORAGE 0x01
 
+// class MASS STORAGE 1
 #define PCI_SUB_CLASS_IDE 0x01
 
-#define PCI_FLAG_USE_SUBCLASS (1 << 0)
-#define PCI_REGISTER_OK 0;
-#define PCI_REGISTER_ERR_FULL -1;
+#define PCI_REGISTER_OK         0
+#define PCI_REGISTER_ERR_FULL   (-1)
 
-typedef void (*pci_driver)(u8 bus, u8 slot, u8 func);
+#define PCI_VALIDATE_OK     0
+#define PCI_VALIDATE_FAIL   1
+
+#define PCI_INIT_OK     0
+#define PCI_INIT_FAIL   1
+
+typedef struct pci_driver pci_driver;
+typedef struct pci_device pci_device;
+
+typedef u8 (*pci_driver_validate)(const pci_device *);
+typedef u8 (*pci_driver_initialize)(const pci_device *);
+
+typedef struct pci_driver {
+    const char *name;
+    const char *description;
+    u8 order;
+    u8 pci_class;
+    u8 pci_subclass;
+    struct {
+        u8 pci_use_subclass: 1;
+    };
+    pci_driver_validate validate;
+    pci_driver_initialize initialize;
+} pci_driver;
+
+typedef struct pci_device {
+    u8 bus;
+    u8 slot;
+    u8 func;
+    union {
+        struct {
+            u16 vendorId;
+            u16 deviceId;
+        };
+        u32 config_line_0;
+    };
+    union {
+        struct {
+            u8 revisionId;
+            u8 programInterface;
+            u8 subclass;
+            u8 class;
+        };
+        u32 config_line_2;
+    };
+    union {
+        struct {
+            u8 cacheLineSize;
+            u8 latencyTimer;
+            u8 headerType;
+            u8 bist;
+        };
+        u32 config_line_3;
+    };
+    const pci_driver *pci_driver;
+    struct {
+        u8 present: 1;
+    } device_state;
+    struct {
+        u8 initialized: 1;
+    } driver_state;
+} pci_device;
 
 void pci_print_info();
 
-u32 pci_register_driver(u8 pci_class, u8 pci_subclass, u8 flags, pci_driver driver, const char *driver_name);
+u32 pci_register_driver(const pci_driver *pci_driver);
+
+void pci_sort_drivers();
+
+void pci_init_drivers();
 
 void pci_scan();