1 files changed, 245 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/int_section.h b/lib/libucsi/dvb/int_section.h
new file mode 100644
index 0000000..932c0e8
--- /dev/null
+++ b/lib/libucsi/dvb/int_section.h
@@ -0,0 +1,245 @@
+/*
+ * section and descriptor parser
+ *
+ * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
+ * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
+ * Copyright (C) 2005 Patrick Boettcher (pb@linuxtv.org)
+ *
+ * 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 _UCSI_DVB_INT_SECTION_H
+#define _UCSI_DVB_INT_SECTION_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/section.h>
+
+/**
+ * dvb_int_section structure - IP/MAC notification section.
+ */
+struct dvb_int_section {
+	struct section_ext head;
+
+  EBIT2(uint32_t platform_id				:24;  ,
+	uint32_t processing_order			: 8;  );
+  EBIT2(uint16_t reserved2				: 4;  ,
+	uint16_t platform_descriptors_length		:12;  );
+	/* struct descriptor platform_descriptors[] */
+	/* struct dvb_int_target target_loop[] */
+} __ucsi_packed;
+
+/**
+ * An entry in the target_loop field of a dvb_int_section.
+ */
+struct dvb_int_target {
+  EBIT2(uint16_t reserved3			: 4;  ,
+	uint16_t target_descriptors_length	:12;  );
+	/* struct descriptor target_descriptors[] */
+	/* struct dvb_int_operational_loop operational_loop */
+} __ucsi_packed;
+
+/**
+ * The operational_loop field in a dvb_int_target.
+ */
+struct dvb_int_operational_loop {
+  EBIT2(uint16_t reserved4				: 4;  ,
+	uint16_t operational_descriptors_length		:12;  );
+	/* struct descriptor operational_descriptors[] */
+} __ucsi_packed;
+
+/**
+ * Process a dvb_int_section.
+ *
+ * @param section Generic section_ext pointer.
+ * @return dvb_int_section pointer, or NULL on error.
+ */
+extern struct dvb_int_section * dvb_int_section_codec(struct section_ext *section);
+
+/**
+ * Accessor for the action_type field of an INT.
+ *
+ * @param intp INT pointer.
+ * @return The action_type.
+ */
+static inline uint8_t dvb_int_section_action_type(struct dvb_int_section *intp)
+{
+	return intp->head.table_id_ext >> 8;
+}
+
+/**
+ * Accessor for the platform_id_hash field of an INT.
+ *
+ * @param intp INT pointer.
+ * @return The platform_id_hash.
+ */
+static inline uint8_t dvb_int_section_platform_id_hash(struct dvb_int_section *intp)
+{
+	return intp->head.table_id_ext & 0xff;
+}
+
+/**
+ * Iterator for platform_descriptors field in a dvb_int_section.
+ *
+ * @param intp dvb_int_section pointer.
+ * @param pos Variable holding a pointer to the current descriptor.
+ */
+#define dvb_int_section_platform_descriptors_for_each(intp, pos) \
+	for ((pos) = dvb_int_section_platform_descriptors_first(intp); \
+	     (pos); \
+	     (pos) = dvb_int_section_platform_descriptors_next(intp, pos))
+
+/**
+ * Iterator for the target_loop field in a dvb_int_section.
+ *
+ * @param intp dvb_int_section pointer.
+ * @param pos Variable holding a pointer to the current dvb_int_target.
+ */
+#define dvb_int_section_target_loop_for_each(intp,pos) \
+	for ((pos) = dvb_int_section_target_loop_first(intp); \
+	     (pos); \
+	     (pos) = dvb_int_section_target_loop_next(intp, pos))
+
+/**
+ * Iterator for the target_descriptors field in a dvb_int_target.
+ *
+ * @param target dvb_int_target pointer.
+ * @param pos Variable holding a pointer to the current descriptor.
+ */
+#define dvb_int_target_target_descriptors_for_each(target, pos) \
+	for ((pos) = dvb_int_target_target_descriptors_first(target); \
+	     (pos); \
+	     (pos) = dvb_int_target_target_descriptors_next(target, pos))
+
+/**
+ * Accessor for the operational_loop field of a dvb_int_target.
+ *
+ * @param target dvb_int_target pointer.
+ * @return Pointer to a dvb_int_operational_loop.
+ */
+static inline struct dvb_int_operational_loop *
+	dvb_int_target_operational_loop(struct dvb_int_target *target)
+{
+	return (struct dvb_int_operational_loop *)
+		((uint8_t *) target + sizeof(struct dvb_int_target) + target->target_descriptors_length);
+}
+
+/**
+ * Iterator for the operational_descriptors field in a dvb_int_operational_loop.
+ *
+ * @param oploop dvb_int_operational_loop pointer.
+ * @param pos Variable holding a pointer to the current descriptor.
+ */
+#define dvb_int_operational_loop_operational_descriptors_for_each(oploop, pos) \
+	for ((pos) = dvb_int_operational_loop_operational_descriptors_first(oploop); \
+	     (pos); \
+	     (pos) = dvb_int_operational_loop_operational_descriptors_next(oploop, pos))
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct descriptor *
+	dvb_int_section_platform_descriptors_first(struct dvb_int_section *in)
+{
+	if (in->platform_descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor *)
+		((uint8_t *) in + sizeof(struct dvb_int_section));
+}
+
+static inline struct descriptor *
+	dvb_int_section_platform_descriptors_next(struct dvb_int_section *in,
+		struct descriptor* pos)
+{
+	return next_descriptor((uint8_t*) in + sizeof(struct dvb_int_section),
+		in->platform_descriptors_length,
+		pos);
+}
+
+static inline struct dvb_int_target *
+	dvb_int_section_target_loop_first(struct dvb_int_section *in)
+{
+	if (sizeof(struct dvb_int_section) + in->platform_descriptors_length >= (uint32_t) section_ext_length((struct section_ext *) in))
+		return NULL;
+
+	return (struct dvb_int_target *)
+		((uint8_t *) in + sizeof(struct dvb_int_section) + in->platform_descriptors_length);
+}
+
+static inline struct dvb_int_target *
+	dvb_int_section_target_loop_next(struct dvb_int_section *in,
+			struct dvb_int_target *pos)
+{
+	struct dvb_int_operational_loop *ol = dvb_int_target_operational_loop(pos);
+	struct dvb_int_target *next =
+		(struct dvb_int_target *) ( (uint8_t *) pos +
+			sizeof(struct dvb_int_target) + pos->target_descriptors_length +
+			sizeof(struct dvb_int_operational_loop) + ol->operational_descriptors_length);
+	struct dvb_int_target *end =
+		(struct dvb_int_target *) ((uint8_t *) in + section_ext_length((struct section_ext *) in) );
+
+	if (next >= end)
+		return 0;
+	return next;
+}
+
+static inline struct descriptor *
+	dvb_int_target_target_descriptors_first(struct dvb_int_target *tl)
+{
+	if (tl->target_descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor *)
+		((uint8_t *) tl + sizeof(struct dvb_int_target));
+}
+
+static inline struct descriptor *
+	dvb_int_target_target_descriptors_next(struct dvb_int_target *tl,
+		struct descriptor* pos)
+{
+	return next_descriptor((uint8_t*) tl + sizeof(struct dvb_int_target),
+		tl->target_descriptors_length,
+		pos);
+}
+
+static inline struct descriptor *
+	dvb_int_operational_loop_operational_descriptors_first(struct dvb_int_operational_loop *ol)
+{
+	if (ol->operational_descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor *)
+		((uint8_t *) ol + sizeof(struct dvb_int_operational_loop));
+}
+
+static inline struct descriptor *
+	dvb_int_operational_loop_operational_descriptors_next(struct dvb_int_operational_loop *ol,
+		struct descriptor* pos)
+{
+	return next_descriptor((uint8_t*) ol + sizeof(struct dvb_int_operational_loop),
+		ol->operational_descriptors_length,
+		pos);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif