Some work on the boot disk identification: the kernel_args structure has

now fields that carry information about the boot disk and partition.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9956 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/boot/disk_identifier.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef KERNEL_BOOT_DISK_IDENTIFIER_H
+#define KERNEL_BOOT_DISK_IDENTIFIER_H
+
+
+#include <SupportDefs.h>
+
+
+enum bus_types {
+	UNKNOWN_BUS,
+	LEGACY_BUS,
+	PCI_BUS,
+};
+
+enum device_types {
+	UNKNOWN_DEVICE,
+	ATA_DEVICE,
+	ATAPI_DEVICE,
+	SCSI_DEVICE,
+	USB_DEVICE,
+	FIREWIRE_DEVICE,
+	FIBRE_DEVICE,
+};
+
+typedef struct disk_identifier {
+	int32				bus_type;
+	int32				device_type;
+
+	union {
+		struct {
+			uint16		base_address;
+		} legacy;
+		struct {
+			uint8		bus;
+			uint8		slot;
+			uint8		function;
+		} pci;
+	} bus;
+	union {
+		struct {
+			bool		master;
+		} ata;
+		struct {
+			bool		master;
+			uint8		logical_unit;
+		} atapi;
+		struct {
+			uint8		logical_unit;
+		} scsi;
+		struct {
+			uint8		tbd;
+		} usb;
+		struct {
+			uint64		guid;
+		} firewire;
+		struct {
+			uint64		wwd;
+		} fibre;
+		struct {
+			off_t		size;
+			struct {
+				off_t	offset;
+				uint32	sum;
+			} check_sums[5];
+		} unknown;
+	} device;
+} disk_identifier;
+
+#endif	/* KERNEL_BOOT_DISK_IDENTIFIER_H */