Initial import

1 files changed, 191 insertions, 0 deletions

diff --git a/include/uapi/linux/edd.h b/include/uapi/linux/edd.h
new file mode 100644
index 000000000..89240a04e
--- /dev/null
+++ b/include/uapi/linux/edd.h
@@ -0,0 +1,191 @@
+/*
+ * linux/include/linux/edd.h
+ *  Copyright (C) 2002, 2003, 2004 Dell Inc.
+ *  by Matt Domsch <Matt_Domsch@dell.com>
+ *
+ * structures and definitions for the int 13h, ax={41,48}h
+ * BIOS Enhanced Disk Drive Services
+ * This is based on the T13 group document D1572 Revision 0 (August 14 2002)
+ * available at http://www.t13.org/docs2002/d1572r0.pdf.  It is
+ * very similar to D1484 Revision 3 http://www.t13.org/docs2002/d1484r3.pdf
+ *
+ * In a nutshell, arch/{i386,x86_64}/boot/setup.S populates a scratch
+ * table in the boot_params that contains a list of BIOS-enumerated
+ * boot devices.
+ * In arch/{i386,x86_64}/kernel/setup.c, this information is
+ * transferred into the edd structure, and in drivers/firmware/edd.c, that
+ * information is used to identify BIOS boot disk.  The code in setup.S
+ * is very sensitive to the size of these structures.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2.0 as published by
+ * the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef _UAPI_LINUX_EDD_H
+#define _UAPI_LINUX_EDD_H
+
+#include <linux/types.h>
+
+#define EDDNR 0x1e9		/* addr of number of edd_info structs at EDDBUF
+				   in boot_params - treat this as 1 byte  */
+#define EDDBUF	0xd00		/* addr of edd_info structs in boot_params */
+#define EDDMAXNR 6		/* number of edd_info structs starting at EDDBUF  */
+#define EDDEXTSIZE 8		/* change these if you muck with the structures */
+#define EDDPARMSIZE 74
+#define CHECKEXTENSIONSPRESENT 0x41
+#define GETDEVICEPARAMETERS 0x48
+#define LEGACYGETDEVICEPARAMETERS 0x08
+#define EDDMAGIC1 0x55AA
+#define EDDMAGIC2 0xAA55
+
+
+#define READ_SECTORS 0x02         /* int13 AH=0x02 is READ_SECTORS command */
+#define EDD_MBR_SIG_OFFSET 0x1B8  /* offset of signature in the MBR */
+#define EDD_MBR_SIG_BUF    0x290  /* addr in boot params */
+#define EDD_MBR_SIG_MAX 16        /* max number of signatures to store */
+#define EDD_MBR_SIG_NR_BUF 0x1ea  /* addr of number of MBR signtaures at EDD_MBR_SIG_BUF
+				     in boot_params - treat this as 1 byte  */
+
+#ifndef __ASSEMBLY__
+
+#define EDD_EXT_FIXED_DISK_ACCESS           (1 << 0)
+#define EDD_EXT_DEVICE_LOCKING_AND_EJECTING (1 << 1)
+#define EDD_EXT_ENHANCED_DISK_DRIVE_SUPPORT (1 << 2)
+#define EDD_EXT_64BIT_EXTENSIONS            (1 << 3)
+
+#define EDD_INFO_DMA_BOUNDARY_ERROR_TRANSPARENT (1 << 0)
+#define EDD_INFO_GEOMETRY_VALID                (1 << 1)
+#define EDD_INFO_REMOVABLE                     (1 << 2)
+#define EDD_INFO_WRITE_VERIFY                  (1 << 3)
+#define EDD_INFO_MEDIA_CHANGE_NOTIFICATION     (1 << 4)
+#define EDD_INFO_LOCKABLE                      (1 << 5)
+#define EDD_INFO_NO_MEDIA_PRESENT              (1 << 6)
+#define EDD_INFO_USE_INT13_FN50                (1 << 7)
+
+struct edd_device_params {
+	__u16 length;
+	__u16 info_flags;
+	__u32 num_default_cylinders;
+	__u32 num_default_heads;
+	__u32 sectors_per_track;
+	__u64 number_of_sectors;
+	__u16 bytes_per_sector;
+	__u32 dpte_ptr;		/* 0xFFFFFFFF for our purposes */
+	__u16 key;		/* = 0xBEDD */
+	__u8 device_path_info_length;	/* = 44 */
+	__u8 reserved2;
+	__u16 reserved3;
+	__u8 host_bus_type[4];
+	__u8 interface_type[8];
+	union {
+		struct {
+			__u16 base_address;
+			__u16 reserved1;
+			__u32 reserved2;
+		} __attribute__ ((packed)) isa;
+		struct {
+			__u8 bus;
+			__u8 slot;
+			__u8 function;
+			__u8 channel;
+			__u32 reserved;
+		} __attribute__ ((packed)) pci;
+		/* pcix is same as pci */
+		struct {
+			__u64 reserved;
+		} __attribute__ ((packed)) ibnd;
+		struct {
+			__u64 reserved;
+		} __attribute__ ((packed)) xprs;
+		struct {
+			__u64 reserved;
+		} __attribute__ ((packed)) htpt;
+		struct {
+			__u64 reserved;
+		} __attribute__ ((packed)) unknown;
+	} interface_path;
+	union {
+		struct {
+			__u8 device;
+			__u8 reserved1;
+			__u16 reserved2;
+			__u32 reserved3;
+			__u64 reserved4;
+		} __attribute__ ((packed)) ata;
+		struct {
+			__u8 device;
+			__u8 lun;
+			__u8 reserved1;
+			__u8 reserved2;
+			__u32 reserved3;
+			__u64 reserved4;
+		} __attribute__ ((packed)) atapi;
+		struct {
+			__u16 id;
+			__u64 lun;
+			__u16 reserved1;
+			__u32 reserved2;
+		} __attribute__ ((packed)) scsi;
+		struct {
+			__u64 serial_number;
+			__u64 reserved;
+		} __attribute__ ((packed)) usb;
+		struct {
+			__u64 eui;
+			__u64 reserved;
+		} __attribute__ ((packed)) i1394;
+		struct {
+			__u64 wwid;
+			__u64 lun;
+		} __attribute__ ((packed)) fibre;
+		struct {
+			__u64 identity_tag;
+			__u64 reserved;
+		} __attribute__ ((packed)) i2o;
+		struct {
+			__u32 array_number;
+			__u32 reserved1;
+			__u64 reserved2;
+		} __attribute__ ((packed)) raid;
+		struct {
+			__u8 device;
+			__u8 reserved1;
+			__u16 reserved2;
+			__u32 reserved3;
+			__u64 reserved4;
+		} __attribute__ ((packed)) sata;
+		struct {
+			__u64 reserved1;
+			__u64 reserved2;
+		} __attribute__ ((packed)) unknown;
+	} device_path;
+	__u8 reserved4;
+	__u8 checksum;
+} __attribute__ ((packed));
+
+struct edd_info {
+	__u8 device;
+	__u8 version;
+	__u16 interface_support;
+	__u16 legacy_max_cylinder;
+	__u8 legacy_max_head;
+	__u8 legacy_sectors_per_track;
+	struct edd_device_params params;
+} __attribute__ ((packed));
+
+struct edd {
+	unsigned int mbr_signature[EDD_MBR_SIG_MAX];
+	struct edd_info edd_info[EDDMAXNR];
+	unsigned char mbr_signature_nr;
+	unsigned char edd_info_nr;
+};
+
+#endif				/*!__ASSEMBLY__ */
+
+#endif /* _UAPI_LINUX_EDD_H */