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* libdvbca - interface onto raw CA devices
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* Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net)
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library 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 GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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* The types of CA interface we support.
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#define DVBCA_INTERFACE_LINK 0
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#define DVBCA_INTERFACE_HLCI 1
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* States a CAM in a slot can be in.
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#define DVBCA_CAMSTATE_MISSING 0
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#define DVBCA_CAMSTATE_INITIALISING 1
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#define DVBCA_CAMSTATE_READY 2
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* Open a CA device. Multiple CAMs can be accessed through a CA device.
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* @param adapter Index of the DVB adapter.
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* @param cadevice Index of the CA device on that adapter (usually 0).
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* @return A unix file descriptor on success, or -1 on failure.
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extern int dvbca_open(int adapter, int cadevice);
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* @param fd File handle opened with dvbca_open.
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* @param slot Slot where the requested CAM is in.
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* @return 0 on success, -1 on failure.
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extern int dvbca_reset(int fd, uint8_t slot);
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* Get the interface type of a CAM.
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* @param fd File handle opened with dvbca_open.
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* @param slot Slot where the requested CAM is in.
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* @return One of the DVBCA_INTERFACE_* values, or -1 on failure.
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extern int dvbca_get_interface_type(int fd, uint8_t slot);
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* Get the state of a CAM.
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* @param fd File handle opened with dvbca_open.
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* @param slot Slot where the requested CAM is in.
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* @return One of the DVBCA_CAMSTATE_* values, or -1 on failure.
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extern int dvbca_get_cam_state(int fd, uint8_t slot);
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* Write a message to a CAM using a link-layer interface.
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* @param fd File handle opened with dvbca_open.
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* @param slot Slot where the requested CAM is in.
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* @param connection_id Connection ID of the message.
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* @param data Data to write.
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* @param data_length Number of bytes to write.
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* @return 0 on success, or -1 on failure.
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extern int dvbca_link_write(int fd, uint8_t slot, uint8_t connection_id,
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uint8_t *data, uint16_t data_length);
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* Read a message from a CAM using a link-layer interface.
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* @param fd File handle opened with dvbca_open.
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* @param slot Slot where the responding CAM is in.
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* @param connection_id Destination for the connection ID the message came from.
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* @param data Data that was read.
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* @param data_length Max number of bytes to read.
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* @return Number of bytes read on success, or -1 on failure.
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extern int dvbca_link_read(int fd, uint8_t *slot, uint8_t *connection_id,
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uint8_t *data, uint16_t data_length);
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// FIXME how do we determine which CAM slot of a CA is meant?
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* Write a message to a CAM using an HLCI interface.
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* @param fd File handle opened with dvbca_open.
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* @param data Data to write.
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* @param data_length Number of bytes to write.
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* @return 0 on success, or -1 on failure.
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extern int dvbca_hlci_write(int fd, uint8_t *data, uint16_t data_length);
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// FIXME how do we determine which CAM slot of a CA is meant?
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* Read a message from a CAM using an HLCI interface.
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* @param fd File handle opened with dvbca_open.
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* @param app_tag Application layer tag giving the message type to read.
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* @param data Data that was read.
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* @param data_length Max number of bytes to read.
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* @return Number of bytes read on success, or -1 on failure.
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extern int dvbca_hlci_read(int fd, uint32_t app_tag, uint8_t *data,
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uint16_t data_length);
added
removed
src/libdvbapi/dvbca.h
