1 files changed, 274 insertions, 0 deletions
diff --git a/src/modules/module-avb/descriptors.h b/src/modules/module-avb/descriptors.h
new file mode 100644
index 0000000..56397e3
--- /dev/null
+++ b/src/modules/module-avb/descriptors.h
@@ -0,0 +1,274 @@
+/* PipeWire
+ *
+ * Copyright © 2022 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "aecp-aem.h"
+#include "aecp-aem-descriptors.h"
+#include "internal.h"
+
+void init_descriptors(struct server *server)
+{
+	server_add_descriptor(server, AVB_AEM_DESC_STRINGS, 0,
+			sizeof(struct avb_aem_desc_strings),
+			&(struct avb_aem_desc_strings)
+	{
+		.string_0 = "PipeWire",
+		.string_1 = "Configuration 1",
+		.string_2 = "Wim Taymans",
+	});
+	server_add_descriptor(server, AVB_AEM_DESC_LOCALE, 0,
+			sizeof(struct avb_aem_desc_locale),
+			&(struct avb_aem_desc_locale)
+	{
+		.locale_identifier = "en-EN",
+		.number_of_strings = htons(1),
+		.base_strings = htons(0)
+	});
+	server_add_descriptor(server, AVB_AEM_DESC_ENTITY, 0,
+			sizeof(struct avb_aem_desc_entity),
+			&(struct avb_aem_desc_entity)
+	{
+		.entity_id = htobe64(server->entity_id),
+		.entity_model_id = htobe64(0),
+		.entity_capabilities = htonl(
+			AVB_ADP_ENTITY_CAPABILITY_AEM_SUPPORTED |
+			AVB_ADP_ENTITY_CAPABILITY_CLASS_A_SUPPORTED |
+			AVB_ADP_ENTITY_CAPABILITY_GPTP_SUPPORTED |
+			AVB_ADP_ENTITY_CAPABILITY_AEM_IDENTIFY_CONTROL_INDEX_VALID |
+			AVB_ADP_ENTITY_CAPABILITY_AEM_INTERFACE_INDEX_VALID),
+
+		.talker_stream_sources = htons(8),
+		.talker_capabilities = htons(
+			AVB_ADP_TALKER_CAPABILITY_IMPLEMENTED |
+			AVB_ADP_TALKER_CAPABILITY_AUDIO_SOURCE),
+		.listener_stream_sinks = htons(8),
+		.listener_capabilities = htons(
+			AVB_ADP_LISTENER_CAPABILITY_IMPLEMENTED |
+			AVB_ADP_LISTENER_CAPABILITY_AUDIO_SINK),
+		.controller_capabilities = htons(0),
+		.available_index = htonl(0),
+		.association_id = htobe64(0),
+		.entity_name = "PipeWire",
+		.vendor_name_string = htons(2),
+		.model_name_string = htons(0),
+		.firmware_version = "0.3.48",
+		.group_name = "",
+		.serial_number = "",
+		.configurations_count = htons(1),
+		.current_configuration = htons(0)
+	});
+	struct {
+		struct avb_aem_desc_configuration desc;
+		struct avb_aem_desc_descriptor_count descriptor_counts[8];
+	} __attribute__ ((__packed__)) config =
+	{
+		{
+		.object_name = "Configuration 1",
+		.localized_description = htons(1),
+		.descriptor_counts_count = htons(8),
+		.descriptor_counts_offset = htons(
+			4 + sizeof(struct avb_aem_desc_configuration)),
+		},
+		.descriptor_counts = {
+			{ htons(AVB_AEM_DESC_AUDIO_UNIT), htons(1) },
+			{ htons(AVB_AEM_DESC_STREAM_INPUT), htons(1) },
+			{ htons(AVB_AEM_DESC_STREAM_OUTPUT), htons(1) },
+			{ htons(AVB_AEM_DESC_AVB_INTERFACE), htons(1) },
+			{ htons(AVB_AEM_DESC_CLOCK_SOURCE), htons(1) },
+			{ htons(AVB_AEM_DESC_CONTROL), htons(2) },
+			{ htons(AVB_AEM_DESC_LOCALE), htons(1) },
+			{ htons(AVB_AEM_DESC_CLOCK_DOMAIN), htons(1) }
+		}
+	};
+	server_add_descriptor(server, AVB_AEM_DESC_CONFIGURATION, 0,
+			sizeof(config), &config);
+
+	struct {
+		struct avb_aem_desc_audio_unit desc;
+		struct avb_aem_desc_sampling_rate sampling_rates[6];
+	} __attribute__ ((__packed__)) audio_unit =
+	{
+		{
+		.object_name = "PipeWire",
+		.localized_description = htons(0),
+		.clock_domain_index = htons(0),
+		.number_of_stream_input_ports = htons(1),
+		.base_stream_input_port = htons(0),
+		.number_of_stream_output_ports = htons(1),
+		.base_stream_output_port = htons(0),
+		.number_of_external_input_ports = htons(8),
+		.base_external_input_port = htons(0),
+		.number_of_external_output_ports = htons(8),
+		.base_external_output_port = htons(0),
+		.number_of_internal_input_ports = htons(0),
+		.base_internal_input_port = htons(0),
+		.number_of_internal_output_ports = htons(0),
+		.base_internal_output_port = htons(0),
+		.number_of_controls = htons(0),
+		.base_control = htons(0),
+		.number_of_signal_selectors = htons(0),
+		.base_signal_selector = htons(0),
+		.number_of_mixers = htons(0),
+		.base_mixer = htons(0),
+		.number_of_matrices = htons(0),
+		.base_matrix = htons(0),
+		.number_of_splitters = htons(0),
+		.base_splitter = htons(0),
+		.number_of_combiners = htons(0),
+		.base_combiner = htons(0),
+		.number_of_demultiplexers = htons(0),
+		.base_demultiplexer = htons(0),
+		.number_of_multiplexers = htons(0),
+		.base_multiplexer = htons(0),
+		.number_of_transcoders = htons(0),
+		.base_transcoder = htons(0),
+		.number_of_control_blocks = htons(0),
+		.base_control_block = htons(0),
+		.current_sampling_rate = htonl(48000),
+		.sampling_rates_offset = htons(
+			4 + sizeof(struct avb_aem_desc_audio_unit)),
+		.sampling_rates_count = htons(6),
+		},
+		.sampling_rates = {
+			{ .pull_frequency = htonl(44100) },
+			{ .pull_frequency = htonl(48000) },
+			{ .pull_frequency = htonl(88200) },
+			{ .pull_frequency = htonl(96000) },
+			{ .pull_frequency = htonl(176400) },
+			{ .pull_frequency = htonl(192000) },
+		}
+	};
+	server_add_descriptor(server, AVB_AEM_DESC_AUDIO_UNIT, 0,
+			sizeof(audio_unit), &audio_unit);
+
+	struct {
+		struct avb_aem_desc_stream desc;
+		uint64_t stream_formats[6];
+	} __attribute__ ((__packed__)) stream_input_0 =
+	{
+		{
+		.object_name = "Stream Input 1",
+		.localized_description = htons(0xffff),
+		.clock_domain_index = htons(0),
+		.stream_flags = htons(
+				AVB_AEM_DESC_STREAM_FLAG_SYNC_SOURCE |
+				AVB_AEM_DESC_STREAM_FLAG_CLASS_A),
+		.current_format = htobe64(0x00a0020840000800ULL),
+		.formats_offset = htons(
+			4 + sizeof(struct avb_aem_desc_stream)),
+		.number_of_formats = htons(6),
+		.backup_talker_entity_id_0 = htobe64(0),
+		.backup_talker_unique_id_0 = htons(0),
+		.backup_talker_entity_id_1 = htobe64(0),
+		.backup_talker_unique_id_1 = htons(0),
+		.backup_talker_entity_id_2 = htobe64(0),
+		.backup_talker_unique_id_2 = htons(0),
+		.backedup_talker_entity_id = htobe64(0),
+		.backedup_talker_unique = htons(0),
+		.avb_interface_index = htons(0),
+		.buffer_length = htons(8)
+		},
+		.stream_formats = {
+			htobe64(0x00a0010860000800ULL),
+			htobe64(0x00a0020860000800ULL),
+			htobe64(0x00a0030860000800ULL),
+			htobe64(0x00a0040860000800ULL),
+			htobe64(0x00a0050860000800ULL),
+			htobe64(0x00a0060860000800ULL),
+		},
+	};
+	server_add_descriptor(server, AVB_AEM_DESC_STREAM_INPUT, 0,
+			sizeof(stream_input_0), &stream_input_0);
+
+	struct {
+		struct avb_aem_desc_stream desc;
+		uint64_t stream_formats[6];
+	} __attribute__ ((__packed__)) stream_output_0 =
+	{
+		{
+		.object_name = "Stream Output 1",
+		.localized_description = htons(0xffff),
+		.clock_domain_index = htons(0),
+		.stream_flags = htons(
+				AVB_AEM_DESC_STREAM_FLAG_CLASS_A),
+		.current_format = htobe64(0x00a0020840000800ULL),
+		.formats_offset = htons(
+			4 + sizeof(struct avb_aem_desc_stream)),
+		.number_of_formats = htons(6),
+		.backup_talker_entity_id_0 = htobe64(0),
+		.backup_talker_unique_id_0 = htons(0),
+		.backup_talker_entity_id_1 = htobe64(0),
+		.backup_talker_unique_id_1 = htons(0),
+		.backup_talker_entity_id_2 = htobe64(0),
+		.backup_talker_unique_id_2 = htons(0),
+		.backedup_talker_entity_id = htobe64(0),
+		.backedup_talker_unique = htons(0),
+		.avb_interface_index = htons(0),
+		.buffer_length = htons(8)
+		},
+		.stream_formats = {
+			htobe64(0x00a0010860000800ULL),
+			htobe64(0x00a0020860000800ULL),
+			htobe64(0x00a0030860000800ULL),
+			htobe64(0x00a0040860000800ULL),
+			htobe64(0x00a0050860000800ULL),
+			htobe64(0x00a0060860000800ULL),
+		},
+	};
+	server_add_descriptor(server, AVB_AEM_DESC_STREAM_OUTPUT, 0,
+			sizeof(stream_output_0), &stream_output_0);
+
+	struct avb_aem_desc_avb_interface avb_interface = {
+		.localized_description = htons(0xffff),
+		.interface_flags = htons(
+				AVB_AEM_DESC_AVB_INTERFACE_FLAG_GPTP_GRANDMASTER_SUPPORTED),
+		.clock_identity = htobe64(0),
+		.priority1 = 0,
+		.clock_class = 0,
+		.offset_scaled_log_variance = htons(0),
+		.clock_accuracy = 0,
+		.priority2 = 0,
+		.domain_number = 0,
+		.log_sync_interval = 0,
+		.log_announce_interval = 0,
+		.log_pdelay_interval = 0,
+		.port_number = 0,
+	};
+	strncpy(avb_interface.object_name, server->ifname, 63);
+	memcpy(avb_interface.mac_address, server->mac_addr, 6);
+	server_add_descriptor(server, AVB_AEM_DESC_AVB_INTERFACE, 0,
+			sizeof(avb_interface), &avb_interface);
+
+	struct avb_aem_desc_clock_source clock_source = {
+		.object_name = "Stream Clock",
+		.localized_description = htons(0xffff),
+		.clock_source_flags = htons(0),
+		.clock_source_type = htons(
+				AVB_AEM_DESC_CLOCK_SOURCE_TYPE_INPUT_STREAM),
+		.clock_source_identifier = htobe64(0),
+		.clock_source_location_type = htons(AVB_AEM_DESC_STREAM_INPUT),
+		.clock_source_location_index = htons(0),
+	};
+	server_add_descriptor(server, AVB_AEM_DESC_CLOCK_SOURCE, 0,
+			sizeof(clock_source), &clock_source);
+}