1 files changed, 190 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/cell_frequency_link_descriptor.h b/lib/libucsi/dvb/cell_frequency_link_descriptor.h
new file mode 100644
index 0000000..63f7fd2
--- /dev/null
+++ b/lib/libucsi/dvb/cell_frequency_link_descriptor.h
@@ -0,0 +1,190 @@
+/*
+ * section and descriptor parser
+ *
+ * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
+ * Copyright (C) 2005 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 _UCSI_DVB_CELL_FREQUENCY_LINK_DESCRIPTOR
+#define _UCSI_DVB_CELL_FREQUENCY_LINK_DESCRIPTOR 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/descriptor.h>
+#include <libucsi/endianops.h>
+
+/**
+ * dvb_cell_frequency_link_descriptor structure.
+ */
+struct dvb_cell_frequency_link_descriptor {
+	struct descriptor d;
+
+	/* struct dvb_cell_frequency_link_cell cells[] */
+} __ucsi_packed;
+
+/**
+ * An entry in the cells field of a dvb_cell_frequency_link_descriptor.
+ */
+struct dvb_cell_frequency_link_cell {
+	uint16_t cell_id;
+	uint32_t frequency;
+	uint8_t subcell_loop_info_length;
+	/* struct dvb_cell_frequency_link_subcell subcells[] */
+} __ucsi_packed;
+
+/**
+ * An entry in the subcells field of a dvb_cell_frequency_link_cell.
+ */
+struct dvb_cell_frequency_link_cell_subcell {
+	uint8_t cell_id_extension;
+	uint32_t transposer_frequency;
+} __ucsi_packed;
+
+/**
+ * Process a dvb_cell_frequency_link_descriptor.
+ *
+ * @param d Generic descriptor pointer.
+ * @return dvb_cell_frequency_link_descriptor pointer, or NULL on error.
+ */
+static inline struct dvb_cell_frequency_link_descriptor*
+	dvb_cell_frequency_link_descriptor_codec(struct descriptor* d)
+{
+	uint32_t pos = 0;
+	uint32_t pos2 = 0;
+	uint8_t* buf = (uint8_t*) d + 2;
+	uint32_t len = d->len;
+
+	while(pos < len) {
+		struct dvb_cell_frequency_link_cell *e =
+			(struct dvb_cell_frequency_link_cell*) (buf+pos);
+
+		if ((pos + sizeof(struct dvb_cell_frequency_link_cell)) > len)
+			return NULL;
+
+		bswap16(buf+pos);
+		bswap32(buf+pos+2);
+
+		pos += sizeof(struct dvb_cell_frequency_link_cell);
+
+		if ((pos + e->subcell_loop_info_length) > len)
+			return NULL;
+
+		if (e->subcell_loop_info_length % sizeof(struct dvb_cell_frequency_link_cell_subcell))
+			return NULL;
+
+		pos2 = 0;
+		while(pos2 < e->subcell_loop_info_length) {
+			bswap32(buf+pos+pos2+1);
+
+			pos2 += sizeof(struct dvb_cell_frequency_link_cell_subcell);
+		}
+
+		pos += e->subcell_loop_info_length;
+	}
+
+	return (struct dvb_cell_frequency_link_descriptor*) d;
+}
+
+/**
+ * Iterator for the cells field of a dvb_cell_frequency_link_descriptor.
+ *
+ * @param d dvb_cell_frequency_link_descriptor pointer.
+ * @param pos Variable holding a pointer to the current dvb_cell_frequency_link_cell.
+ */
+#define dvb_cell_frequency_link_descriptor_cells_for_each(d, pos) \
+	for ((pos) = dvb_cell_frequency_link_descriptor_cells_first(d); \
+	     (pos); \
+	     (pos) = dvb_cell_frequency_link_descriptor_cells_next(d, pos))
+
+/**
+ * Iterator for the subcells field of a dvb_cell_frequency_link_cell.
+ *
+ * @param cell dvb_cell_frequency_link_cell pointer.
+ * @param pos Variable holding a pointer to the current dvb_cell_frequency_link_cell_subcell.
+ */
+#define dvb_cell_frequency_link_cell_subcells_for_each(cell, pos) \
+	for ((pos) = dvb_cell_frequency_link_cell_subcells_first(cell); \
+	     (pos); \
+	     (pos) = dvb_cell_frequency_link_cell_subcells_next(cell, pos))
+
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct dvb_cell_frequency_link_cell*
+	dvb_cell_frequency_link_descriptor_cells_first(struct dvb_cell_frequency_link_descriptor *d)
+{
+	if (d->d.len == 0)
+		return NULL;
+
+	return (struct dvb_cell_frequency_link_cell *)
+		((uint8_t*) d + sizeof(struct dvb_cell_frequency_link_descriptor));
+}
+
+static inline struct dvb_cell_frequency_link_cell*
+	dvb_cell_frequency_link_descriptor_cells_next(struct dvb_cell_frequency_link_descriptor *d,
+						      struct dvb_cell_frequency_link_cell *pos)
+{
+	uint8_t *end = (uint8_t*) d + 2 + d->d.len;
+	uint8_t *next =	(uint8_t *) pos +
+			sizeof(struct dvb_cell_frequency_link_cell) +
+			pos->subcell_loop_info_length;
+
+	if (next >= end)
+		return NULL;
+
+	return (struct dvb_cell_frequency_link_cell *) next;
+}
+
+static inline struct dvb_cell_frequency_link_cell_subcell*
+	dvb_cell_frequency_link_cell_subcells_first(struct dvb_cell_frequency_link_cell *d)
+{
+	if (d->subcell_loop_info_length == 0)
+		return NULL;
+
+	return (struct dvb_cell_frequency_link_cell_subcell*)
+		((uint8_t*) d + sizeof(struct dvb_cell_frequency_link_cell));
+}
+
+static inline struct dvb_cell_frequency_link_cell_subcell*
+	dvb_cell_frequency_link_cell_subcells_next(struct dvb_cell_frequency_link_cell *cell,
+					      struct dvb_cell_frequency_link_cell_subcell *pos)
+{
+	uint8_t *end = (uint8_t*) cell + cell->subcell_loop_info_length;
+	uint8_t *next = (uint8_t*) pos +
+			sizeof(struct dvb_cell_frequency_link_cell_subcell);
+
+	if (next >= end)
+		return NULL;
+
+	return (struct dvb_cell_frequency_link_cell_subcell *) next;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif