vidix/dhahelper/dhahelper.h

   1 /*
   2  * Direct Hardware Access (DHA) kernel helper
   3  *
   4  * Copyright (C) 2002 Alex Beregszaszi <alex@fsn.hu>
   5  * This file is part of MPlayer.
   6  *
   7  * MPlayer is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * MPlayer is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #ifndef MPLAYER_DHAHELPER_H
  23 #define MPLAYER_DHAHELPER_H
  24
  25 #include <linux/ioctl.h>
  26
  27 /* feel free to change */
  28 #define DEFAULT_MAJOR   180
  29
  30 #define API_VERSION     0x1
  31
  32 typedef struct dhahelper_port_s
  33 {
  34 #define PORT_OP_READ    1
  35 #define PORT_OP_WRITE   2
  36     int         operation;
  37     int         size;
  38     int         addr;
  39     int         value;
  40 } dhahelper_port_t;
  41
  42 typedef struct dhahelper_memory_s
  43 {
  44 #define MEMORY_OP_MAP   1
  45 #define MEMORY_OP_UNMAP 2
  46     int         operation;
  47     int         start;
  48     int         offset;
  49     int         size;
  50     int         ret;
  51 #define MEMORY_FLAG_NOCACHE 1
  52     int         flags;
  53 } dhahelper_memory_t;
  54
  55 typedef struct dhahelper_mtrr_s
  56 {
  57 #define MTRR_OP_ADD     1
  58 #define MTRR_OP_DEL     2
  59     int         operation;
  60     int         start;
  61     int         size;
  62     int         type;
  63 } dhahelper_mtrr_t;
  64
  65 typedef struct dhahelper_pci_s
  66 {
  67 #define PCI_OP_READ     1
  68 #define PCI_OP_WRITE    1
  69     int         operation;
  70     int         bus;
  71     int         dev;
  72     int         func;
  73     int         cmd;
  74     int         size;
  75     int         ret;
  76 } dhahelper_pci_t;
  77
  78 #define DHAHELPER_GET_VERSION   _IOW('D', 0, int)
  79 #define DHAHELPER_PORT          _IOWR('D', 1, dhahelper_port_t)
  80 #define DHAHELPER_MEMORY        _IOWR('D', 2, dhahelper_memory_t)
  81 #define DHAHELPER_MTRR          _IOWR('D', 3, dhahelper_mtrr_t)
  82 #define DHAHELPER_PCI           _IOWR('D', 4, dhahelper_pci_t)
  83
  84 #endif /* MPLAYER_DHAHELPER_H */