1 /* ----------------------------------------------------------------------- * 2 * 3 * Copyright 2002-2009 H. Peter Anvin - All Rights Reserved 4 * Copyright 2009 Intel Corporation; author: H. Peter Anvin 5 * 6 * Permission is hereby granted, free of charge, to any person 7 * obtaining a copy of this software and associated documentation 8 * files (the "Software"), to deal in the Software without 9 * restriction, including without limitation the rights to use, 10 * copy, modify, merge, publish, distribute, sublicense, and/or 11 * sell copies of the Software, and to permit persons to whom 12 * the Software is furnished to do so, subject to the following 13 * conditions: 14 * 15 * The above copyright notice and this permission notice shall 16 * be included in all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 20 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 22 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 23 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 * 27 * ----------------------------------------------------------------------- */ 28 29 /* 30 * pmapi.h 31 * 32 * Definitions for the Syslinux 4 protected-mode ABI 33 */ 34 35 #ifndef _SYSLINUX_PMAPI_H 36 #define _SYSLINUX_PMAPI_H 37 38 #include <stddef.h> 39 #include <inttypes.h> 40 41 /* 42 * Note: add new members to this structure only at the end. 43 * The position of elements in this structure is an ABI. 44 */ 45 struct _DIR_; 46 struct dirent; 47 48 struct com32_filedata { 49 size_t size; /* File size */ 50 int blocklg2; /* log2(block size) */ 51 uint16_t handle; /* File handle */ 52 }; 53 54 struct com32_pmapi { 55 size_t __pmapi_size; 56 57 void *(*lmalloc)(size_t); 58 void (*lfree)(void *); 59 60 int (*open_file)(const char *, int, struct com32_filedata *); 61 size_t (*read_file)(uint16_t *, void *, size_t); 62 void (*close_file)(uint16_t); 63 64 struct _DIR_ *(*opendir)(const char *); 65 struct dirent *(*readdir)(struct _DIR_ *); 66 int (*closedir)(struct _DIR_ *); 67 68 void (*idle)(void); 69 void (*reset_idle)(void); 70 71 int (*chdir)(const char *); 72 char *(*getcwd)(char *, size_t); 73 74 /* Should be "const volatile", but gcc miscompiles that sometimes */ 75 volatile uint32_t *jiffies; 76 volatile uint32_t *ms_timer; 77 78 const int sysappend_count; 79 const char * const *sysappend_strings; 80 }; 81 82 #endif /* _SYSLINUX_PMAPI_H */ 83
