patch-2.4.23 linux-2.4.23/include/asm-i386/edd.h
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- Lines: 173
- Date:
2003-11-28 10:26:21.000000000 -0800
- Orig file:
linux-2.4.22/include/asm-i386/edd.h
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.22/include/asm-i386/edd.h linux-2.4.23/include/asm-i386/edd.h
@@ -0,0 +1,172 @@
+/*
+ * linux/include/asm-i386/edd.h
+ * Copyright (C) 2002 Dell Computer Corporation
+ * 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/boot/setup.S populates a scratch table
+ * in the empty_zero_block that contains a list of BIOS-enumerated
+ * boot devices.
+ * In arch/i386/kernel/setup.c, this information is
+ * transferred into the edd structure, and in arch/i386/kernel/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 _ASM_I386_EDD_H
+#define _ASM_I386_EDD_H
+
+#define EDDNR 0x1e9 /* addr of number of edd_info structs at EDDBUF
+ in empty_zero_block - treat this as 1 byte */
+#define EDDBUF 0x600 /* addr of edd_info structs in empty_zero_block */
+#define EDDMAXNR 6 /* number of edd_info structs starting at EDDBUF */
+#define EDDEXTSIZE 4 /* change these if you muck with the structures */
+#define EDDPARMSIZE 74
+#define CHECKEXTENSIONSPRESENT 0x41
+#define GETDEVICEPARAMETERS 0x48
+#define EDDMAGIC1 0x55AA
+#define EDDMAGIC2 0xAA55
+
+#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_BOUNDRY_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;
+ struct edd_device_params params;
+} __attribute__ ((packed));
+
+extern struct edd_info edd[EDDMAXNR];
+extern unsigned char eddnr;
+#endif /*!__ASSEMBLY__ */
+
+#endif /* _ASM_I386_EDD_H */
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