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e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
156 lines
4.2 KiB
C
156 lines
4.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
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/*
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* ca.h
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*
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* Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>
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* & Marcus Metzler <marcus@convergence.de>
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* for convergence integrated media GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Lesser Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _DVBCA_H_
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#define _DVBCA_H_
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/**
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* struct ca_slot_info - CA slot interface types and info.
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*
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* @num: slot number.
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* @type: slot type.
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* @flags: flags applicable to the slot.
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*
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* This struct stores the CA slot information.
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*
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* @type can be:
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*
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* - %CA_CI - CI high level interface;
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* - %CA_CI_LINK - CI link layer level interface;
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* - %CA_CI_PHYS - CI physical layer level interface;
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* - %CA_DESCR - built-in descrambler;
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* - %CA_SC -simple smart card interface.
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*
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* @flags can be:
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*
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* - %CA_CI_MODULE_PRESENT - module (or card) inserted;
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* - %CA_CI_MODULE_READY - module is ready for usage.
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*/
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struct ca_slot_info {
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int num;
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int type;
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#define CA_CI 1
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#define CA_CI_LINK 2
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#define CA_CI_PHYS 4
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#define CA_DESCR 8
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#define CA_SC 128
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unsigned int flags;
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#define CA_CI_MODULE_PRESENT 1
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#define CA_CI_MODULE_READY 2
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};
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/**
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* struct ca_descr_info - descrambler types and info.
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*
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* @num: number of available descramblers (keys).
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* @type: type of supported scrambling system.
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*
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* Identifies the number of descramblers and their type.
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*
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* @type can be:
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*
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* - %CA_ECD - European Common Descrambler (ECD) hardware;
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* - %CA_NDS - Videoguard (NDS) hardware;
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* - %CA_DSS - Distributed Sample Scrambling (DSS) hardware.
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*/
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struct ca_descr_info {
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unsigned int num;
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unsigned int type;
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#define CA_ECD 1
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#define CA_NDS 2
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#define CA_DSS 4
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};
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/**
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* struct ca_caps - CA slot interface capabilities.
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*
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* @slot_num: total number of CA card and module slots.
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* @slot_type: bitmap with all supported types as defined at
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* &struct ca_slot_info (e. g. %CA_CI, %CA_CI_LINK, etc).
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* @descr_num: total number of descrambler slots (keys)
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* @descr_type: bitmap with all supported types as defined at
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* &struct ca_descr_info (e. g. %CA_ECD, %CA_NDS, etc).
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*/
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struct ca_caps {
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unsigned int slot_num;
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unsigned int slot_type;
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unsigned int descr_num;
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unsigned int descr_type;
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};
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/**
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* struct ca_msg - a message to/from a CI-CAM
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*
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* @index: unused
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* @type: unused
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* @length: length of the message
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* @msg: message
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*
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* This struct carries a message to be send/received from a CI CA module.
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*/
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struct ca_msg {
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unsigned int index;
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unsigned int type;
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unsigned int length;
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unsigned char msg[256];
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};
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/**
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* struct ca_descr - CA descrambler control words info
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*
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* @index: CA Descrambler slot
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* @parity: control words parity, where 0 means even and 1 means odd
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* @cw: CA Descrambler control words
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*/
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struct ca_descr {
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unsigned int index;
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unsigned int parity;
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unsigned char cw[8];
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};
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#define CA_RESET _IO('o', 128)
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#define CA_GET_CAP _IOR('o', 129, struct ca_caps)
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#define CA_GET_SLOT_INFO _IOR('o', 130, struct ca_slot_info)
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#define CA_GET_DESCR_INFO _IOR('o', 131, struct ca_descr_info)
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#define CA_GET_MSG _IOR('o', 132, struct ca_msg)
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#define CA_SEND_MSG _IOW('o', 133, struct ca_msg)
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#define CA_SET_DESCR _IOW('o', 134, struct ca_descr)
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#if !defined(__KERNEL__)
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/* This is needed for legacy userspace support */
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typedef struct ca_slot_info ca_slot_info_t;
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typedef struct ca_descr_info ca_descr_info_t;
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typedef struct ca_caps ca_caps_t;
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typedef struct ca_msg ca_msg_t;
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typedef struct ca_descr ca_descr_t;
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#endif
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#endif
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