/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ /* * ca.h * * Copyright (C) 2000 Ralph Metzler <[email protected]> * & Marcus Metzler <[email protected]> * for convergence integrated media GmbH */ #ifndef _DVBCA_H_ #define _DVBCA_H_ /** * 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. */ struct ca_slot_info { … }; /** * 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 { … }; /** * 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 { … }; /** * 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 { … }; /** * 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 { … }; #define CA_RESET … #define CA_GET_CAP … #define CA_GET_SLOT_INFO … #define CA_GET_DESCR_INFO … #define CA_GET_MSG … #define CA_SEND_MSG … #define CA_SET_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
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