4.1. CA Data Types¶
-
struct
ca_slot_info
¶ CA slot interface types and info.
Definition
struct ca_slot_info {
int num;
int type;
#define CA_CI 1;
#define CA_CI_LINK 2;
#define CA_CI_PHYS 4;
#define CA_DESCR 8;
#define CA_SC 128;
unsigned int flags;
#define CA_CI_MODULE_PRESENT 1;
#define CA_CI_MODULE_READY 2;
};
Members
num
- slot number.
type
- slot type.
flags
- flags applicable to the slot.
Description
This struct stores the CA slot information.
type can be:
CA_CI
- CI high level interface;CA_CI_LINK
- CI link layer level interface;CA_CI_PHYS
- CI physical layer level interface;CA_DESCR
- built-in descrambler;CA_SC
-simple smart card interface.
flags can be:
CA_CI_MODULE_PRESENT
- module (or card) inserted;CA_CI_MODULE_READY
- module is ready for usage.
-
struct
ca_descr_info
¶ descrambler types and info.
Definition
struct ca_descr_info {
unsigned int num;
unsigned int type;
#define CA_ECD 1;
#define CA_NDS 2;
#define CA_DSS 4;
};
Members
num
- number of available descramblers (keys).
type
- type of supported scrambling system.
Description
Identifies the number of descramblers and their type.
type can be:
CA_ECD
- European Common Descrambler (ECD) hardware;CA_NDS
- Videoguard (NDS) hardware;CA_DSS
- Distributed Sample Scrambling (DSS) hardware.
-
struct
ca_caps
¶ CA slot interface capabilities.
Definition
struct ca_caps {
unsigned int slot_num;
unsigned int slot_type;
unsigned int descr_num;
unsigned int descr_type;
};
Members
slot_num
- total number of CA card and module slots.
slot_type
- bitmap with all supported types as defined at
struct ca_slot_info
(e. g.CA_CI
,CA_CI_LINK
, etc). descr_num
- total number of descrambler slots (keys)
descr_type
- bitmap with all supported types as defined at
struct ca_descr_info
(e. g.CA_ECD
,CA_NDS
, etc).
-
struct
ca_msg
¶ a message to/from a CI-CAM
Definition
struct ca_msg {
unsigned int index;
unsigned int type;
unsigned int length;
unsigned char msg[256];
};
Members
index
- unused
type
- unused
length
- length of the message
msg
- message
Description
This struct carries a message to be send/received from a CI CA module.
-
struct
ca_descr
¶ CA descrambler control words info
Definition
struct ca_descr {
unsigned int index;
unsigned int parity;
unsigned char cw[8];
};
Members
index
- CA Descrambler slot
parity
- control words parity, where 0 means even and 1 means odd
cw
- CA Descrambler control words