1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Appendix G. DVB Conditional Access Header File</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API"><link rel="up" href="dvbapi.html" title="Part II. LINUX DVB API"><link rel="prev" href="audio_h.html" title="Appendix F. DVB Audio Header File"><link rel="next" href="dmx_h.html" title="Appendix H. DVB Demux Header File"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Appendix G. DVB Conditional Access Header File</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="audio_h.html">Prev</a> </td><th width="60%" align="center">Part II. LINUX DVB API</th><td width="20%" align="right"> <a accesskey="n" href="dmx_h.html">Next</a></td></tr></table><hr></div><div class="appendix"><div class="titlepage"><div><div><h2 class="title"><a name="ca_h"></a>Appendix G. DVB Conditional Access Header File</h2></div></div></div><pre class="programlisting"> 2/* 3 * ca.h 4 * 5 * Copyright (C) 2000 Ralph Metzler <ralph@convergence.de> 6 * & Marcus Metzler <marcus@convergence.de> 7 * for convergence integrated media GmbH 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Lesser Public License 11 * as published by the Free Software Foundation; either version 2.1 12 * of the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 22 * 23 */ 24 25#ifndef _DVBCA_H_ 26#define _DVBCA_H_ 27 28/* slot interface types and info */ 29 30typedef struct <a class="link" href="dvb_ca.html#ca-slot-info" title="ca_slot_info_t">ca_slot_info</a> { 31 int num; /* slot number */ 32 33 int type; /* CA interface this slot supports */ 34#define CA_CI 1 /* CI high level interface */ 35#define CA_CI_LINK 2 /* CI link layer level interface */ 36#define CA_CI_PHYS 4 /* CI physical layer level interface */ 37#define CA_DESCR 8 /* built-in descrambler */ 38#define CA_SC 128 /* simple smart card interface */ 39 40 unsigned int flags; 41#define CA_CI_MODULE_PRESENT 1 /* module (or card) inserted */ 42#define CA_CI_MODULE_READY 2 43} <a class="link" href="dvb_ca.html#ca-slot-info" title="ca_slot_info_t">ca_slot_info_t</a>; 44 45 46/* descrambler types and info */ 47 48typedef struct <a class="link" href="dvb_ca.html#ca-descr-info" title="ca_descr_info_t">ca_descr_info</a> { 49 unsigned int num; /* number of available descramblers (keys) */ 50 unsigned int type; /* type of supported scrambling system */ 51#define CA_ECD 1 52#define CA_NDS 2 53#define CA_DSS 4 54} <a class="link" href="dvb_ca.html#ca-descr-info" title="ca_descr_info_t">ca_descr_info_t</a>; 55 56typedef struct <a class="link" href="dvb_ca.html#ca-caps" title="ca_caps_t">ca_caps</a> { 57 unsigned int slot_num; /* total number of CA card and module slots */ 58 unsigned int slot_type; /* OR of all supported types */ 59 unsigned int descr_num; /* total number of descrambler slots (keys) */ 60 unsigned int descr_type; /* OR of all supported types */ 61} <a class="link" href="dvb_ca.html#ca-caps" title="ca_caps_t">ca_caps_t</a>; 62 63/* a message to/from a CI-CAM */ 64typedef struct <a class="link" href="dvb_ca.html#ca-msg" title="ca_msg_t">ca_msg</a> { 65 unsigned int index; 66 unsigned int type; 67 unsigned int length; 68 unsigned char msg[256]; 69} <a class="link" href="dvb_ca.html#ca-msg" title="ca_msg_t">ca_msg_t</a>; 70 71typedef struct <a class="link" href="dvb_ca.html#ca-descr" title="ca_descr_t">ca_descr</a> { 72 unsigned int index; 73 unsigned int parity; /* 0 == even, 1 == odd */ 74 unsigned char cw[8]; 75} <a class="link" href="dvb_ca.html#ca-descr" title="ca_descr_t">ca_descr_t</a>; 76 77typedef struct <a class="link" href="dvb_ca.html#ca-pid" title="ca-pid">ca_pid</a> { 78 unsigned int pid; 79 int index; /* -1 == disable*/ 80} <a class="link" href="dvb_ca.html#ca-pid" title="ca-pid">ca_pid_t</a>; 81 82#define <a class="link" href="ca_function_calls.html#CA_RESET" title="CA_RESET">CA_RESET</a> _IO('o', 128) 83#define <a class="link" href="ca_function_calls.html#CA_GET_CAP" title="CA_GET_CAP">CA_GET_CAP</a> _IOR('o', 129, ca_caps_t) 84#define <a class="link" href="ca_function_calls.html#CA_GET_SLOT_INFO" title="CA_GET_SLOT_INFO">CA_GET_SLOT_INFO</a> _IOR('o', 130, ca_slot_info_t) 85#define <a class="link" href="ca_function_calls.html#CA_GET_DESCR_INFO" title="CA_GET_DESCR_INFO">CA_GET_DESCR_INFO</a> _IOR('o', 131, ca_descr_info_t) 86#define <a class="link" href="ca_function_calls.html#CA_GET_MSG" title="CA_GET_MSG">CA_GET_MSG</a> _IOR('o', 132, ca_msg_t) 87#define <a class="link" href="ca_function_calls.html#CA_SEND_MSG" title="CA_SEND_MSG">CA_SEND_MSG</a> _IOW('o', 133, ca_msg_t) 88#define <a class="link" href="ca_function_calls.html#CA_SET_DESCR" title="CA_SET_DESCR">CA_SET_DESCR</a> _IOW('o', 134, ca_descr_t) 89#define <a class="link" href="ca_function_calls.html#CA_SET_PID" title="CA_SET_PID">CA_SET_PID</a> _IOW('o', 135, ca_pid_t) 90 91#endif 92</pre></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="audio_h.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="dvbapi.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="dmx_h.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Appendix F. DVB Audio Header File </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Appendix H. DVB Demux Header File</td></tr></table></div></body></html> 93