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Diffstat (limited to 'usr.bin/doscmd/ems.h')
| -rw-r--r-- | usr.bin/doscmd/ems.h | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/usr.bin/doscmd/ems.h b/usr.bin/doscmd/ems.h deleted file mode 100644 index 276bddc..0000000 --- a/usr.bin/doscmd/ems.h +++ /dev/null @@ -1,313 +0,0 @@ -/*- - * Copyright (c) 1997 Helmut Wirth <hfwirth@ping.at> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice immediately at the beginning of the file, witout modification, - * this list of conditions, and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#ifndef EMS_H -#define EMS_H - -/* Header for ems.c, the EMS emulation */ - -/* Global definitions, some of them will be configurable in the future */ - -#define EMS_NUM_HANDLES 256 /* Includes OS handle 0 */ -#define EMS_MAXSIZE 10240 /* In kbytes */ -#define EMS_MAX_PHYS 4 /* Frame is 64kB */ -#define EMS_FRAME_ADDR 0xe0000 -#define EMS_VERSION 0x40 /* Version 4.0 */ -#define EMS_PAGESIZE (16 *1024) /* page size in bytes */ -#define EMS_SAVEMAGIC 0xAFFE /* magic number */ - -/* These are the LIM EMS 3.0 calls */ -#define GET_MANAGER_STATUS 0x40 -#define GET_PAGE_FRAME_SEGMENT 0x41 -#define GET_PAGE_COUNTS 0x42 -#define GET_HANDLE_AND_ALLOCATE 0x43 -#define MAP_UNMAP 0x44 -#define DEALLOCATE_HANDLE 0x45 -#define GET_EMM_VERSION 0x46 -#define SAVE_PAGE_MAP 0x47 -#define RESTORE_PAGE_MAP 0x48 -#define RESERVED_1 0x49 -#define RESERVED_2 0x4a -#define GET_HANDLE_COUNT 0x4b -#define GET_PAGES_OWNED 0x4c -#define GET_PAGES_FOR_ALL 0x4d - -/* LIM EMS 4.0 calls */ -/* Global subfunctions for the LIM EMS 4.0 calls */ -#define GET 0x0 -#define SET 0x1 -/* Modes for Map/Unmap and AlterandCall/AlterAndJump */ -#define PHYS_ADDR 0x0 -#define SEG_ADDR 0x0 - -/* Page map functions */ -#define PAGE_MAP 0x4e -#define PAGE_MAP_PARTIAL 0x4f -/* Page map subfunctions */ -#define GET_SET 0x2 -#define GET_SIZE 0x3 - -#define MAP_UNMAP_MULTI_HANDLE 0x50 - -#define REALLOC_PAGES 0x51 - -#define HANDLE_ATTRIBUTES 0x52 -/* Subfunctions */ -#define HANDLE_CAPABILITY 0x2 - -#define HANDLE_NAME 0x53 - -#define HANDLE_DIRECTORY 0x54 -#define HANDLE_SEARCH 0x1 -#define GET_TOTAL_HANDLES 0x2 - -#define ALTER_PAGEMAP_JUMP 0x55 -#define ALTER_PAGEMAP_CALL 0x56 -/* Subfunction for call */ -#define GET_STACK_SIZE 0x2 - -#define MOVE_MEMORY_REGION 0x57 -/* Subfunctions */ -#define MOVE 0x0 -#define EXCHANGE 0x1 - -#define GET_MAPPABLE_PHYS_ADDR 0x58 -/* Subfunctions */ -#define GET_ARRAY 0x0 -#define GET_ARRAY_ENTRIES 0x1 - -#define GET_HW_CONFIGURATION 0x59 -/* Subfunctions */ -#define GET_HW_ARRAY 0x0 -#define GET_RAW_PAGE_COUNT 0x1 - -#define ALLOCATE_PAGES 0x5a -/* Subfunctions */ -#define ALLOC_STANDARD 0x0 -#define ALLOC_RAW 0x1 - -#define ALTERNATE_MAP_REGISTER 0x5b -/* Subfunctions */ -#define GET_SAVE_ARRAY_SIZE 0x2 -#define ALLOCATE_REGISTER_SET 0x3 -#define DEALLOCATE_REGISTER_SET 0x4 -#define ALLOCATE_DMA 0x5 -#define ENABLE_DMA 0x6 -#define DISABLE_DMA 0x7 -#define DEALLOCATE_DMA 0x8 - -#define PREPARE_WARMBOOT 0x5c - -#define OS_FUNCTION_SET 0x5d -/* Subfunctions */ -#define ENABLE 0x0 -#define DISABLE 0x1 -#define RETURN_KEY 0x2 - -/* End of call definitions */ - -/* EMS errors */ - -#define EMS_SUCCESS 0x0 -#define EMS_SW_MALFUNC 0x80 -#define EMS_HW_MALFUNC 0x81 -#define EMS_INV_HANDLE 0x83 -#define EMS_FUNC_NOSUP 0x84 -#define EMS_OUT_OF_HANDLES 0x85 -#define EMS_SAVED_MAP 0x86 -#define EMS_OUT_OF_PHYS 0x87 -#define EMS_OUT_OF_LOG 0x88 -#define EMS_ZERO_PAGES 0x89 -#define EMS_LOGPAGE_TOOBIG 0x8a -#define EMS_ILL_PHYS 0x8b -#define EMS_NO_ROOM_TO_SAVE 0x8c -#define EMS_ALREADY_SAVED 0x8d -#define EMS_NO_SAVED_CONTEXT 0x8e -#define EMS_INVALID_SUB 0x8f -#define EMS_INVALID_ATTR 0x90 -#define EMS_FEAT_NOSUP 0x91 -#define EMS_MOVE_OVERLAP1 0x92 -#define EMS_MOVE_OVERFLOW 0x93 -#define EMS_PAGEOFFSET 0x95 -#define EMS_MOVE_OVERLAP2 0x97 -#define EMS_HNAME_NOT_FOUND 0xa0 -#define EMS_NAME_EXISTS 0xa1 -#define EMS_SAVED_CONTEXT_BAD 0xa3 -#define EMS_FUNCTION_DISABLED 0xa4 - -/* - * EMS handles: The handle contains at its end an array of pointers to - * its allocated pages. The array is of size npages. Handle structs are - * malloced at runtime. - * Page numbering: Every page is 16kB, always. The pages are numbered - * from 0 to highest page, depending on total EMS memory. Every handle - * has pages allocated and this pages too are numbered from 0 to highest - * page allocated. This are *not* the same numbers, because there may be - * holes in the allocation. - * Page numbers are unsigned short, which will give us 65536 * 16 kB (1GB) - * pages to handle at maximum. This should be enough for the next years. - */ - -typedef struct { - short handle[4]; /* Handle for each mapping */ - u_char pos_mapped[4]; /* Boolean value, 1 if something is mapped */ - u_char pos_pagenum[4]; /* Page number currently mapped into position */ -} EMS_mapping_context; - - -/* This union is for copying operations of the handle name only */ -typedef union { - u_char uc_hn[8]; - u_long ul_hn[2]; -} Hname; - -typedef struct { - Hname hname; - u_long npages; - /* The mapping context for save/restore page map */ - EMS_mapping_context *mcontext; - /* The pagenum here is the number in the system page array. The - * logical page number connected with this handle is the index into - * this array. - */ - u_short pagenum[0]; - /* Will grow here, depending on allocation */ -} EMS_handle; - -/* - * The connection between every page in the system and the handles is - * maintained by an array of these structs. The array is indexed by the - * page numbers. - */ - -typedef struct { - short handle; /* The handle this page belongs to */ -#define EMS_FREE 0 -#define EMS_ALLOCED 1 -#define EMS_MAPPED 2 - u_short status; /* room for misc information */ -} EMS_page; - -/* - * The combined pointer into EMS memory: offs is the offset into an EMS - * page, page is the page index inside the region allocated to a handle. - * This depends on EMS_PAGESIZE. - * This is used for copy and move operations. - */ - -typedef struct { - u_long offs:14; - u_long page:18; -} EMS_combi; - -typedef union { - u_long ua_addr; /* Conventional address pointer */ - EMS_combi ua_emsaddr; /* EMS address pointer */ -} EMS_addr; - -#define EMS_OFFS(u) u.ua_emsaddr.offs -#define EMS_PAGE(u) u.ua_emsaddr.page -#define EMS_PTR(u) u.ua_addr - -/* - * EMS info structure, only used to pass information to and from - * DOS - */ - -typedef struct { - u_short handle __attribute__ ((packed)); /* handle */ - u_short npages __attribute__ ((packed)); /* pages allocated */ -} EMShandlepage; - -/* - * EMS map/unmap multiple, only used to pass information to and from - * DOS - */ - -typedef struct { - u_short log __attribute__ ((packed)); /* logical page number */ - u_short phys __attribute__ ((packed)); /* physical page (position) or - segment address inside frame */ -} EMSmapunmap; - -/* - * EMS handle directory, only used to pass information to and from - * DOS - */ - -typedef struct { - u_short log __attribute__ ((packed)); /* logical page number */ - Hname name __attribute__ ((packed)); /* Handle name */ - -} EMShandledir; - -/* - * Structure for get/set page map: This structure is used to save and - * restore the page map from DOS memory. A program can get the mapping - * context and later set (restore) it. To avoid errors we add a magic - * number and a checksum. - */ - -typedef struct { - u_short magic; /* Magic number */ - u_short checksum; /* Checksum over entire structure */ - EMS_mapping_context ems_saved_context; -} EMScontext; - -/* - * EMS physical address array, only used to pass information to and from - * DOS - */ - -typedef struct { - u_short segm __attribute__ ((packed)); /* segment address inside frame */ - u_short phys __attribute__ ((packed)); /* physical page (position) */ -} EMSaddrarray; - -/* - * EMS move memory call structure, only used to pass information to and from - * DOS - */ - -typedef struct { - u_long length __attribute__ ((packed)); /* length of region */ -#define EMS_MOVE_CONV 0 -#define EMS_MOVE_EMS 1 - u_char src_type __attribute__ ((packed)); /* source type (0,1) */ - u_short src_handle __attribute__ ((packed)); /* source handle */ - u_short src_offset __attribute__ ((packed)); /* source offset */ - u_short src_seg __attribute__ ((packed)); /* source type */ - u_char dst_type __attribute__ ((packed)); /* destination type (0,1) */ - u_short dst_handle __attribute__ ((packed)); /* destination handle */ - u_short dst_offset __attribute__ ((packed)); /* destination offset */ - u_short dst_seg __attribute__ ((packed)); /* destination type */ -} EMSmovemem; - -#endif /* EMS_H */ |
