avb: avbtp -> avb

src/modules/module-avb/mvrp.c

@@ -0,0 +1,161 @@
+/* AVB support
+ *
+ * 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 <pipewire/pipewire.h>
+
+#include "mvrp.h"
+
+static const uint8_t mac[6] = AVB_MVRP_MAC;
+
+struct attr {
+	struct avb_mvrp_attribute attr;
+	struct spa_list link;
+};
+
+struct mvrp {
+	struct server *server;
+	struct spa_hook server_listener;
+
+	struct spa_list attributes;
+};
+
+static bool mvrp_check_header(void *data, const void *hdr, size_t *hdr_size, bool *has_params)
+{
+	const struct avb_packet_mvrp_msg *msg = hdr;
+	uint8_t attr_type = msg->attribute_type;
+
+	if (!AVB_MVRP_ATTRIBUTE_TYPE_VALID(attr_type))
+		return false;
+
+	*hdr_size = sizeof(*msg);
+	*has_params = false;
+	return true;
+}
+
+static int mvrp_attr_event(void *data, uint64_t now, uint8_t attribute_type, uint8_t event)
+{
+	struct mvrp *mvrp = data;
+	struct attr *a;
+	spa_list_for_each(a, &mvrp->attributes, link)
+		if (a->attr.type == attribute_type)
+			avb_mrp_update_state(mvrp->server->mrp, now, a->attr.mrp, event);
+	return 0;
+}
+
+static void debug_vid(const void *p)
+{
+	const struct avb_packet_mvrp_vid *t = p;
+	pw_log_info("vid");
+	pw_log_info(" %d", ntohs(t->vlan));
+}
+
+static int process_vid(struct mvrp *mvrp, uint64_t now, uint8_t attr_type,
+		const void *m, uint8_t event, uint8_t param, int num)
+{
+	return mvrp_attr_event(mvrp, now, attr_type, event);
+}
+
+static const struct {
+	void (*debug) (const void *p);
+	int (*dispatch) (struct mvrp *mvrp, uint64_t now, uint8_t attr_type,
+			const void *m, uint8_t event, uint8_t param, int num);
+} dispatch[] = {
+	[AVB_MVRP_ATTRIBUTE_TYPE_VID] = { debug_vid, process_vid, },
+};
+
+static int mvrp_process(void *data, uint64_t now, uint8_t attribute_type, const void *value,
+			uint8_t event, uint8_t param, int index)
+{
+	struct mvrp *mvrp = data;
+	return dispatch[attribute_type].dispatch(mvrp, now,
+				attribute_type, value, event, param, index);
+}
+
+static const struct avb_mrp_parse_info info = {
+	AVB_VERSION_MRP_PARSE_INFO,
+	.check_header = mvrp_check_header,
+	.attr_event = mvrp_attr_event,
+	.process = mvrp_process,
+};
+
+static int mvrp_message(void *data, uint64_t now, const void *message, int len)
+{
+	struct mvrp *mvrp = data;
+	const struct avb_packet_mrp *p = message;
+
+	if (ntohs(p->eth.type) != AVB_MVRP_ETH)
+		return 0;
+	if (memcmp(p->eth.dest, mac, 6) != 0)
+		return 0;
+
+	pw_log_debug("MVRP");
+	return avb_mrp_parse_packet(mvrp->server->mrp,
+			now, message, len, &info, mvrp);
+}
+
+static void mvrp_destroy(void *data)
+{
+	struct mvrp *mvrp = data;
+	spa_hook_remove(&mvrp->server_listener);
+	free(mvrp);
+}
+
+static const struct server_events server_events = {
+	AVB_VERSION_SERVER_EVENTS,
+	.destroy = mvrp_destroy,
+	.message = mvrp_message
+};
+
+struct avb_mvrp_attribute *avb_mvrp_attribute_new(struct avb_mvrp *m,
+		uint8_t type)
+{
+	struct mvrp *mvrp = (struct mvrp*)m;
+	struct avb_mrp_attribute *attr;
+	struct attr *a;
+
+	attr = avb_mrp_attribute_new(mvrp->server->mrp, sizeof(struct attr));
+
+	a = attr->user_data;
+	a->attr.mrp = attr;
+	a->attr.type = type;
+	spa_list_append(&mvrp->attributes, &a->link);
+
+	return &a->attr;
+}
+
+struct avb_mvrp *avb_mvrp_register(struct server *server)
+{
+	struct mvrp *mvrp;
+
+	mvrp = calloc(1, sizeof(*mvrp));
+	if (mvrp == NULL)
+		return NULL;
+
+	mvrp->server = server;
+	spa_list_init(&mvrp->attributes);
+
+	avdecc_server_add_listener(server, &mvrp->server_listener, &server_events, mvrp);
+
+	return (struct avb_mvrp*)mvrp;
+}