com32/include/syslinux/config.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   Permission is hereby granted, free of charge, to any person
   6  *   obtaining a copy of this software and associated documentation
   7  *   files (the "Software"), to deal in the Software without
   8  *   restriction, including without limitation the rights to use,
   9  *   copy, modify, merge, publish, distribute, sublicense, and/or
  10  *   sell copies of the Software, and to permit persons to whom
  11  *   the Software is furnished to do so, subject to the following
  12  *   conditions:
  13  *
  14  *   The above copyright notice and this permission notice shall
  15  *   be included in all copies or substantial portions of the Software.
  16  *
  17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  *   OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * ----------------------------------------------------------------------- */
  27
  28 /*
  29  * syslinux/config.h
  30  *
  31  * Query syslinux configuration information.
  32  */
  33
  34 #ifndef _SYSLINUX_CONFIG_H
  35 #define _SYSLINUX_CONFIG_H
  36
  37 #include <stdint.h>
  38
  39 enum syslinux_filesystem {
  40   SYSLINUX_FS_UNKNOWN    = 0x30,
  41   SYSLINUX_FS_SYSLINUX   = 0x31,
  42   SYSLINUX_FS_PXELINUX   = 0x32,
  43   SYSLINUX_FS_ISOLINUX   = 0x33,
  44   SYSLINUX_FS_EXTLINUX   = 0x34,
  45 };
  46
  47 struct syslinux_version {
  48   uint16_t version;             /* (major << 8)+minor */
  49   uint16_t max_api;
  50   enum syslinux_filesystem filesystem;
  51   const char *version_string;
  52   const char *copyright_string;
  53 };
  54
  55 extern struct syslinux_version __syslinux_version;
  56 static inline const struct syslinux_version *
  57 syslinux_version(void)
  58 {
  59   return &__syslinux_version;
  60 }
  61
  62 union syslinux_derivative_info {
  63   struct {
  64     uint8_t filesystem;
  65     uint8_t ah;
  66   } c;                          /* common */
  67   struct {
  68     uint16_t ax;
  69     uint16_t cx;
  70     uint16_t dx;
  71     uint16_t _pad;
  72     const void *esbx;
  73     const void *fssi;
  74     const void *gsdi;
  75   } r;                          /* raw */
  76   struct {
  77     uint8_t filesystem;
  78     uint8_t ah;
  79     uint8_t sector_shift;
  80     uint8_t ch;
  81     uint8_t drive_number;
  82     uint8_t dh;
  83     uint16_t _pad;
  84     const void *ptab_ptr;
  85     const uint32_t *esdi_ptr;
  86   } disk;                       /* syslinux/extlinux */
  87   struct {
  88     uint8_t filesystem;
  89     uint8_t ah;
  90     uint16_t cx;
  91     uint16_t apiver;
  92     uint16_t _pad;
  93     const void *pxenvptr;
  94     const void *stack;
  95   } pxe;                        /* pxelinux */
  96   struct {
  97     uint8_t filesystem;
  98     uint8_t ah;
  99     uint8_t sector_shift;
 100     uint8_t ch;
 101     uint8_t drive_number;
 102     uint8_t dh;
 103     uint16_t _pad;
 104     const void *spec_packet;
 105     const uint32_t *esdi_ptr;
 106   } iso;                        /* isolinux */
 107 };
 108
 109 union syslinux_derivative_info __syslinux_derivative_info;
 110 static inline const union syslinux_derivative_info *
 111 syslinux_derivative_info(void)
 112 {
 113   return &__syslinux_derivative_info;
 114 }
 115
 116 struct syslinux_serial_console_info {
 117   uint16_t iobase;
 118   uint16_t divisor;
 119   uint16_t flowctl;
 120 };
 121
 122 extern struct syslinux_serial_console_info __syslinux_serial_console_info;
 123 static inline const struct syslinux_serial_console_info *
 124 syslinux_serial_console_info(void)
 125 {
 126   return &__syslinux_serial_console_info;
 127 }
 128
 129 extern const char *__syslinux_config_file;
 130 static inline const char *syslinux_config_file(void)
 131 {
 132   return __syslinux_config_file;
 133 }
 134
 135 struct syslinux_ipappend_strings {
 136   int count;
 137   const char * const *ptr;
 138 };
 139 extern struct syslinux_ipappend_strings __syslinux_ipappend_strings;
 140 static inline const struct syslinux_ipappend_strings *
 141 syslinux_ipappend_strings(void)
 142 {
 143   return &__syslinux_ipappend_strings;
 144 }
 145
 146 #endif /* _SYSLINUX_CONFIG_H */