WebSVN - shark - Blame - Rev 422 - /shark/trunk/drivers/linuxc26/include/asm/edd.h

Rev	Author	Line No.	Line
422	giacomo	1	/*
		2	* linux/include/asm-i386/edd.h
		3	* Copyright (C) 2002 Dell Inc.
		4	* by Matt Domsch <Matt_Domsch@dell.com>
		5	*
		6	* structures and definitions for the int 13h, ax={41,48}h
		7	* BIOS Enhanced Disk Drive Services
		8	* This is based on the T13 group document D1572 Revision 0 (August 14 2002)
		9	* available at http://www.t13.org/docs2002/d1572r0.pdf. It is
		10	* very similar to D1484 Revision 3 http://www.t13.org/docs2002/d1484r3.pdf
		11	*
		12	* In a nutshell, arch/i386/boot/setup.S populates a scratch table
		13	* in the empty_zero_block that contains a list of BIOS-enumerated
		14	* boot devices.
		15	* In arch/i386/kernel/setup.c, this information is
		16	* transferred into the edd structure, and in arch/i386/kernel/edd.c, that
		17	* information is used to identify BIOS boot disk. The code in setup.S
		18	* is very sensitive to the size of these structures.
		19	*
		20	* This program is free software; you can redistribute it and/or modify
		21	* it under the terms of the GNU General Public License v2.0 as published by
		22	* the Free Software Foundation
		23	*
		24	* This program is distributed in the hope that it will be useful,
		25	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		26	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		27	* GNU General Public License for more details.
		28	*
		29	*/
		30	#ifndef _ASM_I386_EDD_H
		31	#define _ASM_I386_EDD_H
		32
		33	#define EDDNR 0x1e9 /* addr of number of edd_info structs at EDDBUF
		34	in empty_zero_block - treat this as 1 byte */
		35	#define EDDBUF 0x600 /* addr of edd_info structs in empty_zero_block */
		36	#define EDDMAXNR 6 /* number of edd_info structs starting at EDDBUF */
		37	#define EDDEXTSIZE 4 /* change these if you muck with the structures */
		38	#define EDDPARMSIZE 74
		39	#define CHECKEXTENSIONSPRESENT 0x41
		40	#define GETDEVICEPARAMETERS 0x48
		41	#define EDDMAGIC1 0x55AA
		42	#define EDDMAGIC2 0xAA55
		43
		44	#ifndef __ASSEMBLY__
		45
		46	#define EDD_EXT_FIXED_DISK_ACCESS (1 << 0)
		47	#define EDD_EXT_DEVICE_LOCKING_AND_EJECTING (1 << 1)
		48	#define EDD_EXT_ENHANCED_DISK_DRIVE_SUPPORT (1 << 2)
		49	#define EDD_EXT_64BIT_EXTENSIONS (1 << 3)
		50
		51	#define EDD_INFO_DMA_BOUNDARY_ERROR_TRANSPARENT (1 << 0)
		52	#define EDD_INFO_GEOMETRY_VALID (1 << 1)
		53	#define EDD_INFO_REMOVABLE (1 << 2)
		54	#define EDD_INFO_WRITE_VERIFY (1 << 3)
		55	#define EDD_INFO_MEDIA_CHANGE_NOTIFICATION (1 << 4)
		56	#define EDD_INFO_LOCKABLE (1 << 5)
		57	#define EDD_INFO_NO_MEDIA_PRESENT (1 << 6)
		58	#define EDD_INFO_USE_INT13_FN50 (1 << 7)
		59
		60	struct edd_device_params {
		61	u16 length;
		62	u16 info_flags;
		63	u32 num_default_cylinders;
		64	u32 num_default_heads;
		65	u32 sectors_per_track;
		66	u64 number_of_sectors;
		67	u16 bytes_per_sector;
		68	u32 dpte_ptr; /* 0xFFFFFFFF for our purposes */
		69	u16 key; /* = 0xBEDD */
		70	u8 device_path_info_length; /* = 44 */
		71	u8 reserved2;
		72	u16 reserved3;
		73	u8 host_bus_type[4];
		74	u8 interface_type[8];
		75	union {
		76	struct {
		77	u16 base_address;
		78	u16 reserved1;
		79	u32 reserved2;
		80	} __attribute__ ((packed)) isa;
		81	struct {
		82	u8 bus;
		83	u8 slot;
		84	u8 function;
		85	u8 channel;
		86	u32 reserved;
		87	} __attribute__ ((packed)) pci;
		88	/* pcix is same as pci */
		89	struct {
		90	u64 reserved;
		91	} __attribute__ ((packed)) ibnd;
		92	struct {
		93	u64 reserved;
		94	} __attribute__ ((packed)) xprs;
		95	struct {
		96	u64 reserved;
		97	} __attribute__ ((packed)) htpt;
		98	struct {
		99	u64 reserved;
		100	} __attribute__ ((packed)) unknown;
		101	} interface_path;
		102	union {
		103	struct {
		104	u8 device;
		105	u8 reserved1;
		106	u16 reserved2;
		107	u32 reserved3;
		108	u64 reserved4;
		109	} __attribute__ ((packed)) ata;
		110	struct {
		111	u8 device;
		112	u8 lun;
		113	u8 reserved1;
		114	u8 reserved2;
		115	u32 reserved3;
		116	u64 reserved4;
		117	} __attribute__ ((packed)) atapi;
		118	struct {
		119	u16 id;
		120	u64 lun;
		121	u16 reserved1;
		122	u32 reserved2;
		123	} __attribute__ ((packed)) scsi;
		124	struct {
		125	u64 serial_number;
		126	u64 reserved;
		127	} __attribute__ ((packed)) usb;
		128	struct {
		129	u64 eui;
		130	u64 reserved;
		131	} __attribute__ ((packed)) i1394;
		132	struct {
		133	u64 wwid;
		134	u64 lun;
		135	} __attribute__ ((packed)) fibre;
		136	struct {
		137	u64 identity_tag;
		138	u64 reserved;
		139	} __attribute__ ((packed)) i2o;
		140	struct {
		141	u32 array_number;
		142	u32 reserved1;
		143	u64 reserved2;
		144	} __attribute__ ((packed)) raid;
		145	struct {
		146	u8 device;
		147	u8 reserved1;
		148	u16 reserved2;
		149	u32 reserved3;
		150	u64 reserved4;
		151	} __attribute__ ((packed)) sata;
		152	struct {
		153	u64 reserved1;
		154	u64 reserved2;
		155	} __attribute__ ((packed)) unknown;
		156	} device_path;
		157	u8 reserved4;
		158	u8 checksum;
		159	} __attribute__ ((packed));
		160
		161	struct edd_info {
		162	u8 device;
		163	u8 version;
		164	u16 interface_support;
		165	struct edd_device_params params;
		166	} __attribute__ ((packed));
		167
		168	extern struct edd_info edd[EDDMAXNR];
		169	extern unsigned char eddnr;
		170	#endif /!__ASSEMBLY__ /
		171
		172	#endif /* _ASM_I386_EDD_H */

Subversion Repositories shark

(root)/shark/trunk/drivers/linuxc26/include/asm/edd.h @ 587 - Rev 422