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
91