src/helper/types.h

   1 /***************************************************************************
   2  *   Copyright (C) 2004, 2005 by Dominic Rath                              *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23 #ifndef TYPES_H
  24 #define TYPES_H
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #ifndef u8
  31 typedef unsigned char u8;
  32 #endif
  33
  34 #ifndef u16
  35 typedef unsigned short u16;
  36 #endif
  37
  38 #ifndef u32
  39 typedef unsigned int u32;
  40 #endif
  41
  42 #ifndef u64
  43 typedef unsigned long long u64;
  44 #endif
  45
  46 typedef struct jtag_tap_s jtag_tap_t;
  47
  48 /* DANGER!!!! here be dragons! Note that the pointer in
  49  * memory might be unaligned. On some CPU's, i.e. ARM7,
  50  * the 2 lsb are ignored for 32 bit access, on others
  51  * it will cause an exception and on e.g. x86, it works
  52  * the same as if aligned.
  53  */
  54 #define le_to_h_u32(x) ((u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24))
  55 #define le_to_h_u16(x) ((u16)((x)[0] | (x)[1] << 8))
  56 #define be_to_h_u32(x) ((u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24))
  57 #define be_to_h_u16(x) ((u16)((x)[1] | (x)[0] << 8))
  58
  59 #define h_u32_to_le(buf, val) do {\
  60         (buf)[3] = ((val) & 0xff000000) >> 24;\
  61         (buf)[2] = ((val) & 0x00ff0000) >> 16;\
  62         (buf)[1] = ((val) & 0x0000ff00) >> 8;\
  63         (buf)[0] = ((val) & 0x000000ff);\
  64 } while (0)
  65 #define h_u32_to_be(buf, val) do {\
  66         (buf)[0] = ((val) & 0xff000000) >> 24;\
  67         (buf)[1] = ((val) & 0x00ff0000) >> 16;\
  68         (buf)[2] = ((val) & 0x0000ff00) >> 8;\
  69         (buf)[3] = ((val) & 0x000000ff);\
  70 } while (0)
  71
  72 #define h_u16_to_le(buf, val) do {\
  73         (buf)[1] = ((val) & 0xff00) >> 8;\
  74         (buf)[0] = ((val) & 0x00ff) >> 0;\
  75 } while (0)
  76 #define h_u16_to_be(buf, val) do {\
  77         (buf)[0] = ((val) & 0xff00) >> 8;\
  78         (buf)[1] = ((val) & 0x00ff) >> 0;\
  79 } while (0)
  80
  81 #endif /* TYPES_H */