diff options
Diffstat (limited to 'include/uapi/linux/dvb/ca.h')
| -rw-r--r-- | include/uapi/linux/dvb/ca.h | 148 |
1 files changed, 106 insertions, 42 deletions
diff --git a/include/uapi/linux/dvb/ca.h b/include/uapi/linux/dvb/ca.h index c18537f3e449..cb150029fdff 100644 --- a/include/uapi/linux/dvb/ca.h +++ b/include/uapi/linux/dvb/ca.h @@ -24,67 +24,131 @@ #ifndef _DVBCA_H_ #define _DVBCA_H_ -/* slot interface types and info */ - -typedef struct ca_slot_info { - int num; /* slot number */ +/** + * struct ca_slot_info - CA slot interface types and info. + * + * @num: slot number. + * @type: slot type. + * @flags: flags applicable to the slot. + * + * 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. + */ - int type; /* CA interface this slot supports */ -#define CA_CI 1 /* CI high level interface */ -#define CA_CI_LINK 2 /* CI link layer level interface */ -#define CA_CI_PHYS 4 /* CI physical layer level interface */ -#define CA_DESCR 8 /* built-in descrambler */ -#define CA_SC 128 /* simple smart card interface */ +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 /* module (or card) inserted */ +#define CA_CI_MODULE_PRESENT 1 #define CA_CI_MODULE_READY 2 -} ca_slot_info_t; - +}; -/* descrambler types and info */ -typedef struct ca_descr_info { - unsigned int num; /* number of available descramblers (keys) */ - unsigned int type; /* type of supported scrambling system */ +/** + * struct ca_descr_info - descrambler types and info. + * + * @num: number of available descramblers (keys). + * @type: type of supported scrambling system. + * + * 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_descr_info { + unsigned int num; + unsigned int type; #define CA_ECD 1 #define CA_NDS 2 #define CA_DSS 4 -} ca_descr_info_t; +}; -typedef struct ca_caps { - unsigned int slot_num; /* total number of CA card and module slots */ - unsigned int slot_type; /* OR of all supported types */ - unsigned int descr_num; /* total number of descrambler slots (keys) */ - unsigned int descr_type; /* OR of all supported types */ -} ca_caps_t; +/** + * struct ca_caps - CA slot interface capabilities. + * + * @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_caps { + unsigned int slot_num; + unsigned int slot_type; + unsigned int descr_num; + unsigned int descr_type; +}; -/* a message to/from a CI-CAM */ -typedef struct ca_msg { +/** + * struct ca_msg - a message to/from a CI-CAM + * + * @index: unused + * @type: unused + * @length: length of the message + * @msg: message + * + * This struct carries a message to be send/received from a CI CA module. + */ +struct ca_msg { unsigned int index; unsigned int type; unsigned int length; unsigned char msg[256]; -} ca_msg_t; +}; -typedef struct ca_descr { +/** + * struct ca_descr - CA descrambler control words info + * + * @index: CA Descrambler slot + * @parity: control words parity, where 0 means even and 1 means odd + * @cw: CA Descrambler control words + */ +struct ca_descr { unsigned int index; - unsigned int parity; /* 0 == even, 1 == odd */ + unsigned int parity; unsigned char cw[8]; -} ca_descr_t; - -typedef struct ca_pid { - unsigned int pid; - int index; /* -1 == disable*/ -} ca_pid_t; +}; #define CA_RESET _IO('o', 128) -#define CA_GET_CAP _IOR('o', 129, ca_caps_t) -#define CA_GET_SLOT_INFO _IOR('o', 130, ca_slot_info_t) -#define CA_GET_DESCR_INFO _IOR('o', 131, ca_descr_info_t) -#define CA_GET_MSG _IOR('o', 132, ca_msg_t) -#define CA_SEND_MSG _IOW('o', 133, ca_msg_t) -#define CA_SET_DESCR _IOW('o', 134, ca_descr_t) -#define CA_SET_PID _IOW('o', 135, ca_pid_t) +#define CA_GET_CAP _IOR('o', 129, struct ca_caps) +#define CA_GET_SLOT_INFO _IOR('o', 130, struct ca_slot_info) +#define CA_GET_DESCR_INFO _IOR('o', 131, struct ca_descr_info) +#define CA_GET_MSG _IOR('o', 132, struct ca_msg) +#define CA_SEND_MSG _IOW('o', 133, struct ca_msg) +#define CA_SET_DESCR _IOW('o', 134, struct ca_descr) + +#if !defined(__KERNEL__) + +/* This is needed for legacy userspace support */ +typedef struct ca_slot_info ca_slot_info_t; +typedef struct ca_descr_info ca_descr_info_t; +typedef struct ca_caps ca_caps_t; +typedef struct ca_msg ca_msg_t; +typedef struct ca_descr ca_descr_t; + +#endif + #endif |