include/linux/dvb/ca.h

   1 /*
   2  * ca.h
   3  *
   4  * Copyright (C) 2000 Ralph  Metzler <ralph@convergence.de>
   5  *                  & Marcus Metzler <marcus@convergence.de>
   6  *                    for convergence integrated media GmbH
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Lesser Public License
  10  * as published by the Free Software Foundation; either version 2.1
  11  * of the License, or (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 Lesser General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  *
  22  */
  23
  24 #ifndef _DVBCA_H_
  25 #define _DVBCA_H_
  26
  27 /* slot interface types and info */
  28
  29 typedef struct ca_slot_info {
  30         int num;               /* slot number */
  31
  32         int type;              /* CA interface this slot supports */
  33 #define CA_CI            1     /* CI high level interface */
  34 #define CA_CI_LINK       2     /* CI link layer level interface */
  35 #define CA_CI_PHYS       4     /* CI physical layer level interface */
  36 #define CA_DESCR         8     /* built-in descrambler */
  37 #define CA_SC          128     /* simple smart card interface */
  38
  39         unsigned int flags;
  40 #define CA_CI_MODULE_PRESENT 1 /* module (or card) inserted */
  41 #define CA_CI_MODULE_READY   2
  42 } ca_slot_info_t;
  43
  44
  45 /* descrambler types and info */
  46
  47 typedef struct ca_descr_info {
  48         unsigned int num;          /* number of available descramblers (keys) */
  49         unsigned int type;         /* type of supported scrambling system */
  50 #define CA_ECD           1
  51 #define CA_NDS           2
  52 #define CA_DSS           4
  53 } ca_descr_info_t;
  54
  55 typedef struct ca_caps {
  56         unsigned int slot_num;     /* total number of CA card and module slots */
  57         unsigned int slot_type;    /* OR of all supported types */
  58         unsigned int descr_num;    /* total number of descrambler slots (keys) */
  59         unsigned int descr_type;   /* OR of all supported types */
  60 } ca_caps_t;
  61
  62 /* a message to/from a CI-CAM */
  63 typedef struct ca_msg {
  64         unsigned int index;
  65         unsigned int type;
  66         unsigned int length;
  67         unsigned char msg[256];
  68 } ca_msg_t;
  69
  70 typedef struct ca_descr {
  71         unsigned int index;
  72         unsigned int parity;    /* 0 == even, 1 == odd */
  73         unsigned char cw[8];
  74 } ca_descr_t;
  75
  76 typedef struct ca_pid {
  77         unsigned int pid;
  78         int index;              /* -1 == disable*/
  79 } ca_pid_t;
  80
  81 #define CA_RESET          _IO('o', 128)
  82 #define CA_GET_CAP        _IOR('o', 129, ca_caps_t)
  83 #define CA_GET_SLOT_INFO  _IOR('o', 130, ca_slot_info_t)
  84 #define CA_GET_DESCR_INFO _IOR('o', 131, ca_descr_info_t)
  85 #define CA_GET_MSG        _IOR('o', 132, ca_msg_t)
  86 #define CA_SEND_MSG       _IOW('o', 133, ca_msg_t)
  87 #define CA_SET_DESCR      _IOW('o', 134, ca_descr_t)
  88 #define CA_SET_PID        _IOW('o', 135, ca_pid_t)
  89
  90 #endif