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1/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */2/*3 * ca.h4 *5 * Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>6 * & Marcus Metzler <marcus@convergence.de>7 * for convergence integrated media GmbH8 */9 10#ifndef _DVBCA_H_11#define _DVBCA_H_12 13/**14 * struct ca_slot_info - CA slot interface types and info.15 *16 * @num: slot number.17 * @type: slot type.18 * @flags: flags applicable to the slot.19 *20 * This struct stores the CA slot information.21 *22 * @type can be:23 *24 * - %CA_CI - CI high level interface;25 * - %CA_CI_LINK - CI link layer level interface;26 * - %CA_CI_PHYS - CI physical layer level interface;27 * - %CA_DESCR - built-in descrambler;28 * - %CA_SC -simple smart card interface.29 *30 * @flags can be:31 *32 * - %CA_CI_MODULE_PRESENT - module (or card) inserted;33 * - %CA_CI_MODULE_READY - module is ready for usage.34 */35 36struct ca_slot_info {37 int num;38 int type;39#define CA_CI 140#define CA_CI_LINK 241#define CA_CI_PHYS 442#define CA_DESCR 843#define CA_SC 12844 45 unsigned int flags;46#define CA_CI_MODULE_PRESENT 147#define CA_CI_MODULE_READY 248};49 50 51/**52 * struct ca_descr_info - descrambler types and info.53 *54 * @num: number of available descramblers (keys).55 * @type: type of supported scrambling system.56 *57 * Identifies the number of descramblers and their type.58 *59 * @type can be:60 *61 * - %CA_ECD - European Common Descrambler (ECD) hardware;62 * - %CA_NDS - Videoguard (NDS) hardware;63 * - %CA_DSS - Distributed Sample Scrambling (DSS) hardware.64 */65struct ca_descr_info {66 unsigned int num;67 unsigned int type;68#define CA_ECD 169#define CA_NDS 270#define CA_DSS 471};72 73/**74 * struct ca_caps - CA slot interface capabilities.75 *76 * @slot_num: total number of CA card and module slots.77 * @slot_type: bitmap with all supported types as defined at78 * &struct ca_slot_info (e. g. %CA_CI, %CA_CI_LINK, etc).79 * @descr_num: total number of descrambler slots (keys)80 * @descr_type: bitmap with all supported types as defined at81 * &struct ca_descr_info (e. g. %CA_ECD, %CA_NDS, etc).82 */83struct ca_caps {84 unsigned int slot_num;85 unsigned int slot_type;86 unsigned int descr_num;87 unsigned int descr_type;88};89 90/**91 * struct ca_msg - a message to/from a CI-CAM92 *93 * @index: unused94 * @type: unused95 * @length: length of the message96 * @msg: message97 *98 * This struct carries a message to be send/received from a CI CA module.99 */100struct ca_msg {101 unsigned int index;102 unsigned int type;103 unsigned int length;104 unsigned char msg[256];105};106 107/**108 * struct ca_descr - CA descrambler control words info109 *110 * @index: CA Descrambler slot111 * @parity: control words parity, where 0 means even and 1 means odd112 * @cw: CA Descrambler control words113 */114struct ca_descr {115 unsigned int index;116 unsigned int parity;117 unsigned char cw[8];118};119 120#define CA_RESET _IO('o', 128)121#define CA_GET_CAP _IOR('o', 129, struct ca_caps)122#define CA_GET_SLOT_INFO _IOR('o', 130, struct ca_slot_info)123#define CA_GET_DESCR_INFO _IOR('o', 131, struct ca_descr_info)124#define CA_GET_MSG _IOR('o', 132, struct ca_msg)125#define CA_SEND_MSG _IOW('o', 133, struct ca_msg)126#define CA_SET_DESCR _IOW('o', 134, struct ca_descr)127 128#if !defined(__KERNEL__)129 130/* This is needed for legacy userspace support */131typedef struct ca_slot_info ca_slot_info_t;132typedef struct ca_descr_info ca_descr_info_t;133typedef struct ca_caps ca_caps_t;134typedef struct ca_msg ca_msg_t;135typedef struct ca_descr ca_descr_t;136 137#endif138 139 140#endif141