Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207

1 files changed, 135 insertions, 0 deletions

diff --git a/lib/libdvbapi/dvbca.h b/lib/libdvbapi/dvbca.h
new file mode 100644
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--- /dev/null
+++ b/lib/libdvbapi/dvbca.h
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+/*
+ * libdvbca - interface onto raw CA devices
+ *
+ * Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#ifndef LIBDVBCA_H
+#define LIBDVBCA_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+
+/**
+ * The types of CA interface we support.
+ */
+#define DVBCA_INTERFACE_LINK 0
+#define DVBCA_INTERFACE_HLCI 1
+
+/**
+ * States a CAM in a slot can be in.
+ */
+#define DVBCA_CAMSTATE_MISSING 0
+#define DVBCA_CAMSTATE_INITIALISING 1
+#define DVBCA_CAMSTATE_READY 2
+
+
+/**
+ * Open a CA device. Multiple CAMs can be accessed through a CA device.
+ *
+ * @param adapter Index of the DVB adapter.
+ * @param cadevice Index of the CA device on that adapter (usually 0).
+ * @return A unix file descriptor on success, or -1 on failure.
+ */
+extern int dvbca_open(int adapter, int cadevice);
+
+/**
+ * Reset a CAM.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param slot Slot where the requested CAM is in.
+ * @return 0 on success, -1 on failure.
+ */
+extern int dvbca_reset(int fd, uint8_t slot);
+
+/**
+ * Get the interface type of a CAM.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param slot Slot where the requested CAM is in.
+ * @return One of the DVBCA_INTERFACE_* values, or -1 on failure.
+ */
+extern int dvbca_get_interface_type(int fd, uint8_t slot);
+
+/**
+ * Get the state of a CAM.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param slot Slot where the requested CAM is in.
+ * @return One of the DVBCA_CAMSTATE_* values, or -1 on failure.
+ */
+extern int dvbca_get_cam_state(int fd, uint8_t slot);
+
+/**
+ * Write a message to a CAM using a link-layer interface.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param slot Slot where the requested CAM is in.
+ * @param connection_id Connection ID of the message.
+ * @param data Data to write.
+ * @param data_length Number of bytes to write.
+ * @return 0 on success, or -1 on failure.
+ */
+extern int dvbca_link_write(int fd, uint8_t slot, uint8_t connection_id,
+			    uint8_t *data, uint16_t data_length);
+
+/**
+ * Read a message from a CAM using a link-layer interface.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param slot Slot where the responding CAM is in.
+ * @param connection_id Destination for the connection ID the message came from.
+ * @param data Data that was read.
+ * @param data_length Max number of bytes to read.
+ * @return Number of bytes read on success, or -1 on failure.
+ */
+extern int dvbca_link_read(int fd, uint8_t *slot, uint8_t *connection_id,
+			   uint8_t *data, uint16_t data_length);
+
+// FIXME how do we determine which CAM slot of a CA is meant?
+/**
+ * Write a message to a CAM using an HLCI interface.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param data Data to write.
+ * @param data_length Number of bytes to write.
+ * @return 0 on success, or -1 on failure.
+ */
+extern int dvbca_hlci_write(int fd, uint8_t *data, uint16_t data_length);
+
+// FIXME how do we determine which CAM slot of a CA is meant?
+/**
+ * Read a message from a CAM using an HLCI interface.
+ *
+ * @param fd File handle opened with dvbca_open.
+ * @param app_tag Application layer tag giving the message type to read.
+ * @param data Data that was read.
+ * @param data_length Max number of bytes to read.
+ * @return Number of bytes read on success, or -1 on failure.
+ */
+extern int dvbca_hlci_read(int fd, uint32_t app_tag, uint8_t *data,
+			   uint16_t data_length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // LIBDVBCA_H