1 files changed, 327 insertions, 0 deletions
diff --git a/lib/libucsi/atsc/dccsct_section.h b/lib/libucsi/atsc/dccsct_section.h
new file mode 100644
index 0000000..f9f3522
--- /dev/null
+++ b/lib/libucsi/atsc/dccsct_section.h
@@ -0,0 +1,327 @@
+/*
+ * 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_ATSC_DCCSCT_SECTION_H
+#define _UCSI_ATSC_DCCSCT_SECTION_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/atsc/section.h>
+#include <libucsi/atsc/types.h>
+
+enum atsc_dccst_update_types {
+	ATSC_DCCST_UPDATE_NEW_GENRE 	= 0x01,
+	ATSC_DCCST_UPDATE_NEW_STATE 	= 0x02,
+	ATSC_DCCST_UPDATE_NEW_COUNTY 	= 0x03,
+};
+
+/**
+ * atsc_dccsct_section structure.
+ */
+struct atsc_dccsct_section {
+	struct atsc_section_psip head;
+
+	uint8_t updates_defined;
+	/* struct atsc_dccsct_update updates */
+	/* struct atsc_dccsct_section_part2 part2 */
+} __ucsi_packed;
+
+struct atsc_dccsct_update {
+	uint8_t update_type;
+	uint8_t update_data_length;
+	/* struct atsc_dccsct_update_XXX data -- depends on update_type */
+	/* struct atsc_dccsct_update_part2 part2 */
+} __ucsi_packed;
+
+struct atsc_dccsct_update_new_genre {
+	uint8_t genre_category_code;
+	/* atsc_text name */
+} __ucsi_packed;
+
+struct atsc_dccsct_update_new_state {
+	uint8_t dcc_state_location_code;
+	/* atsc_text name */
+} __ucsi_packed;
+
+struct atsc_dccsct_update_new_county {
+	uint8_t state_code;
+  EBIT2(uint16_t reserved			: 6; ,
+	uint16_t dcc_county_location_code	:10; );
+	/* atsc_text name */
+} __ucsi_packed;
+
+struct atsc_dccsct_update_part2 {
+  EBIT2(uint16_t reserved			: 6; ,
+	uint16_t descriptors_length		:10; );
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+struct atsc_dccsct_section_part2 {
+  EBIT2(uint16_t reserved			: 6; ,
+	uint16_t descriptors_length		:10; );
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+/**
+ * Process an atsc_dccsct_section.
+ *
+ * @param section Pointer to an atsc_section_psip structure.
+ * @return atsc_dccsct_section pointer, or NULL on error.
+ */
+struct atsc_dccsct_section *atsc_dccsct_section_codec(struct atsc_section_psip *section);
+
+/**
+ * Accessor for the dccsct_type field of a dccsct.
+ *
+ * @param dccsct dccsct pointer.
+ * @return The dccsct_type.
+ */
+static inline uint16_t atsc_dccsct_section_dccsct_type(struct atsc_dccsct_section *dccsct)
+{
+	return dccsct->head.ext_head.table_id_ext;
+}
+
+/**
+ * Iterator for the updates field in an atsc_dccsct_section.
+ *
+ * @param dccsct atsc_dccsct_section pointer.
+ * @param pos Variable containing a pointer to the current atsc_dccsct_update.
+ * @param idx Integer used to count which test we are in.
+ */
+#define atsc_dccsct_section_updates_for_each(dccsct, pos, idx) \
+	for ((pos) = atsc_dccsct_section_updates_first(dccsct), idx=0; \
+	     (pos); \
+	     (pos) = atsc_dccsct_section_updates_next(dccsct, pos, ++idx))
+
+/**
+ * Accessor for the data field of a new genre atsc_dccsct_update.
+ *
+ * @param update atsc_dccsct_update pointer.
+ * @return struct atsc_dccsct_update_new_genre pointer.
+ */
+static inline struct atsc_dccsct_update_new_genre *atsc_dccsct_update_new_genre(struct atsc_dccsct_update *update)
+{
+	if (update->update_type != ATSC_DCCST_UPDATE_NEW_GENRE)
+		return NULL;
+
+	return (struct atsc_dccsct_update_new_genre *)
+		(((uint8_t*) update) + sizeof(struct atsc_dccsct_update));
+}
+
+/**
+ * Accessor for the name field of an atsc_dccsct_update_new_genre.
+ *
+ * @param update atsc_dccsct_update_new_genre pointer.
+ * @return text pointer.
+ */
+static inline struct atsc_text *atsc_dccsct_update_new_genre_name(struct atsc_dccsct_update *update)
+{
+	if ((update->update_data_length - 1) == 0)
+		return NULL;
+
+	return (struct atsc_text *)
+		(((uint8_t*) update) + sizeof(struct atsc_dccsct_update_new_genre));
+}
+
+/**
+ * Accessor for the data field of a new state atsc_dccsct_update.
+ *
+ * @param update atsc_dccsct_update pointer.
+ * @return struct atsc_dccsct_update_new_state pointer.
+ */
+static inline struct atsc_dccsct_update_new_state *
+	atsc_dccsct_update_new_state(struct atsc_dccsct_update *update)
+{
+	if (update->update_type != ATSC_DCCST_UPDATE_NEW_STATE)
+		return NULL;
+
+	return (struct atsc_dccsct_update_new_state *)
+		(((uint8_t*) update) + sizeof(struct atsc_dccsct_update));
+}
+
+/**
+ * Accessor for the name field of an atsc_dccsct_update_new_state.
+ *
+ * @param update atsc_dccsct_update_new_state pointer.
+ * @return text pointer.
+ */
+static inline struct atsc_text *atsc_dccsct_update_new_state_name(struct atsc_dccsct_update *update)
+{
+	if ((update->update_data_length - 1) == 0)
+		return NULL;
+
+	return (struct atsc_text *)
+		(((uint8_t*) update) + sizeof(struct atsc_dccsct_update_new_state));
+}
+
+/**
+ * Accessor for the data field of a new county atsc_dccsct_update.
+ *
+ * @param update atsc_dccsct_update pointer.
+ * @return struct atsc_dccsct_update_new_county pointer.
+ */
+static inline struct atsc_dccsct_update_new_county *
+	atsc_dccsct_update_new_county(struct atsc_dccsct_update *update)
+{
+	if (update->update_type != ATSC_DCCST_UPDATE_NEW_COUNTY)
+		return NULL;
+
+	return (struct atsc_dccsct_update_new_county *)
+		(((uint8_t*) update) + sizeof(struct atsc_dccsct_update));
+}
+
+/**
+ * Accessor for the name field of an atsc_dccsct_update_new_county.
+ *
+ * @param update atsc_dccsct_update_new_county pointer.
+ * @return text pointer.
+ */
+static inline struct atsc_text *atsc_dccsct_update_new_county_name(struct atsc_dccsct_update *update)
+{
+	if ((update->update_data_length - 3) == 0)
+		return NULL;
+
+	return (struct atsc_text*)
+		(((uint8_t*) update) + sizeof(struct atsc_dccsct_update_new_county));
+}
+
+/**
+ * Accessor for the part2 field of an atsc_dccsct_update.
+ *
+ * @param update atsc_dccsct_update pointer.
+ * @return struct atsc_dccsct_test_part2 pointer.
+ */
+static inline struct atsc_dccsct_update_part2 *atsc_dccsct_update_part2(struct atsc_dccsct_update *update)
+{
+	int pos = sizeof(struct atsc_dccsct_update);
+	pos += update->update_data_length;
+
+	return (struct atsc_dccsct_update_part2 *) (((uint8_t*) update) + pos);
+}
+
+/**
+ * Iterator for the descriptors field in an atsc_dccsct_update_part2 structure.
+ *
+ * @param part2 atsc_dccsct_update_part2 pointer.
+ * @param pos Variable containing a pointer to the current descriptor.
+ */
+#define atsc_dccsct_update_part2_descriptors_for_each(part2, pos) \
+	for ((pos) = atsc_dccsct_update_part2_descriptors_first(part2); \
+	     (pos); \
+	     (pos) = atsc_dccsct_update_part2_descriptors_next(part2, pos))
+
+/**
+ * Iterator for the descriptors field in a atsc_dccsct_section_part2 structure.
+ *
+ * @param part2 atsc_dccsct_section_part2 pointer.
+ * @param pos Variable containing a pointer to the current descriptor.
+ */
+#define atsc_dccsct_section_part2_descriptors_for_each(part2, pos) \
+	for ((pos) = atsc_dccsct_section_part2_descriptors_first(part2); \
+	     (pos); \
+	     (pos) = atsc_dccsct_section_part2_descriptors_next(part2, pos))
+
+
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct atsc_dccsct_update *
+	atsc_dccsct_section_updates_first(struct atsc_dccsct_section *dccsct)
+{
+	size_t pos = sizeof(struct atsc_dccsct_section);
+
+	if (dccsct->updates_defined == 0)
+		return NULL;
+
+	return (struct atsc_dccsct_update*) (((uint8_t *) dccsct) + pos);
+}
+
+static inline struct atsc_dccsct_update*
+	atsc_dccsct_section_updates_next(struct atsc_dccsct_section *dccsct,
+				         struct atsc_dccsct_update *pos,
+				         int idx)
+{
+	if (idx >= dccsct->updates_defined)
+		return NULL;
+
+	struct atsc_dccsct_update_part2 *part2 = atsc_dccsct_update_part2(pos);
+	int len = sizeof(struct atsc_dccsct_update_part2);
+	len += part2->descriptors_length;
+
+	return (struct atsc_dccsct_update *) (((uint8_t*) part2) + len);
+}
+
+static inline struct descriptor *
+	atsc_dccsct_update_part2_descriptors_first(struct atsc_dccsct_update_part2 *part2)
+{
+	size_t pos = sizeof(struct atsc_dccsct_update_part2);
+
+	if (part2->descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor*) (((uint8_t *) part2) + pos);
+}
+
+static inline struct descriptor *
+	atsc_dccsct_update_part2_descriptors_next(struct atsc_dccsct_update_part2 *part2,
+						  struct descriptor *pos)
+{
+	return next_descriptor((uint8_t*) part2 + sizeof(struct atsc_dccsct_update_part2),
+				part2->descriptors_length,
+				pos);
+}
+
+static inline struct descriptor *
+	atsc_dccsct_section_part2_descriptors_first(struct atsc_dccsct_section_part2 *part2)
+{
+	size_t pos = sizeof(struct atsc_dccsct_section_part2);
+
+	if (part2->descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor*) (((uint8_t *) part2) + pos);
+}
+
+static inline struct descriptor *
+	atsc_dccsct_section_part2_descriptors_next(struct atsc_dccsct_section_part2 *part2,
+						 struct descriptor *pos)
+{
+	return next_descriptor((uint8_t*) part2 + sizeof(struct atsc_dccsct_section_part2),
+				part2->descriptors_length,
+				pos);
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif