com32/chain/utility.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2003-2009 H. Peter Anvin - All Rights Reserved
   4  *   Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin
   5  *   Copyright 2010 Shao Miller
   6  *   Copyright 2010-2012 Michal Soltys
   7  *
   8  *   Permission is hereby granted, free of charge, to any person
   9  *   obtaining a copy of this software and associated documentation
  10  *   files (the "Software"), to deal in the Software without
  11  *   restriction, including without limitation the rights to use,
  12  *   copy, modify, merge, publish, distribute, sublicense, and/or
  13  *   sell copies of the Software, and to permit persons to whom
  14  *   the Software is furnished to do so, subject to the following
  15  *   conditions:
  16  *
  17  *   The above copyright notice and this permission notice shall
  18  *   be included in all copies or substantial portions of the Software.
  19  *
  20  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  22  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  24  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  25  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  26  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  27  *   OTHER DEALINGS IN THE SOFTWARE.
  28  *
  29  * ----------------------------------------------------------------------- */
  30
  31 #ifndef COM32_CHAIN_UTILITY_H
  32 #define COM32_CHAIN_UTILITY_H
  33
  34 #include <stdint.h>
  35 #include <stdio.h>
  36 #include <syslinux/disk.h>
  37 #include <syslinux/movebits.h>
  38
  39 /* most (all ?) bpb "types" known to humankind as of 2012 */
  40 enum {bpbUNK, bpbV20, bpbV30, bpbV32, bpbV34, bpbV40, bpbVNT, bpbV70, bpbEXF};
  41
  42 /* see utility.c for details */
  43 enum {L2C_CNUL, L2C_CADD, L2C_CMAX};
  44
  45 /* first usable and first unusable offsets */
  46 #define dosmin ((addr_t)0x500u)
  47 #define dosmax ((addr_t)(*(uint16_t *) 0x413 << 10))
  48
  49 void wait_key(void);
  50 void lba2chs(disk_chs *dst, const struct disk_info *di, uint64_t lba, int mode);
  51 uint32_t get_file_lba(const char *filename);
  52 int drvoff_detect(int type);
  53 int bpb_detect(const uint8_t *bpb, const char *tag);
  54 int guid_is0(const struct guid *guid);
  55
  56 static inline int warn(const char *x)
  57 {
  58     return fprintf(stderr, "WARN: %s\n", x);
  59 }
  60
  61 static inline int error(const char *x)
  62 {
  63     return fprintf(stderr, "ERR: %s\n", x);
  64 }
  65
  66 static inline int crit(const char *x)
  67 {
  68     return fprintf(stderr, "CRIT: %s @%s:%d\n", x, __FILE__, __LINE__);
  69 }
  70
  71 #define critm()  crit("Malloc failure.")
  72
  73 #endif
  74
  75 /* vim: set ts=8 sts=4 sw=4 noet: */