MICP profile level interface function have been implemented
This adds initial code for MICP plugin.
Co-developed-by: Mahesh Talewad <mahesh.talewad@xxxxxxx>
Signed-off-by: Mahesh Talewad <mahesh.talewad@xxxxxxx>
Signed-off-by: Nitin Jadhav <nitin.jadhav@xxxxxxx>
---
Makefile.plugins | 5 +
configure.ac | 4 +
profiles/audio/micp.c | 340 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 349 insertions(+)
create mode 100644 profiles/audio/micp.c
diff --git a/Makefile.plugins b/Makefile.plugins
index fc19522e4..5880ed0df 100644
--- a/Makefile.plugins
+++ b/Makefile.plugins
@@ -137,6 +137,11 @@ builtin_modules += vcp
builtin_sources += profiles/audio/vcp.c
endif
+if MICP
+builtin_modules += micp
+builtin_sources += profiles/audio/micp.c
+endif
+
if CSIP
builtin_modules += csip
builtin_sources += profiles/audio/csip.c
diff --git a/configure.ac b/configure.ac
index bc7edfcd3..9a8856380 100644
--- a/configure.ac
+++ b/configure.ac
@@ -211,6 +211,10 @@ AC_ARG_ENABLE(vcp, AS_HELP_STRING([--disable-vcp],
[disable VCP profile]), [enable_vcp=${enableval}])
AM_CONDITIONAL(VCP, test "${enable_vcp}" != "no")
+AC_ARG_ENABLE(micp, AS_HELP_STRING([--disable-micp],
+ [disable MICP profile]), [enable_micp=${enableval}])
+AM_CONDITIONAL(MICP, test "${enable_micp}" != "no")
+
AC_ARG_ENABLE(csip, AS_HELP_STRING([--disable-csip],
[disable CSIP profile]), [enable_csip=${enableval}])
AM_CONDITIONAL(CSIP, test "${enable_csip}" != "no")
diff --git a/profiles/audio/micp.c b/profiles/audio/micp.c
new file mode 100644
index 000000000..452027c75
--- /dev/null
+++ b/profiles/audio/micp.c
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2023 NXP Semiconductors. All rights reserved.
+ *
+ *
+ */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define _GNU_SOURCE
+
+#include <ctype.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <glib.h>
+
+#include "gdbus/gdbus.h"
+
+#include "lib/bluetooth.h"
+#include "lib/hci.h"
+#include "lib/sdp.h"
+#include "lib/uuid.h"
+
+#include "src/dbus-common.h"
+#include "src/shared/util.h"
+#include "src/shared/att.h"
+#include "src/shared/queue.h"
+#include "src/shared/gatt-db.h"
+#include "src/shared/gatt-server.h"
+#include "src/shared/micp.h"
+
+#include "btio/btio.h"
+#include "src/plugin.h"
+#include "src/adapter.h"
+#include "src/gatt-database.h"
+#include "src/device.h"
+#include "src/profile.h"
+#include "src/service.h"
+#include "src/log.h"
+#include "src/error.h"
+
+#define MICS_UUID_STR "0000184D-0000-1000-8000-00805f9b34fb"
+
+struct micp_data {
+ struct btd_device *device;
+ struct btd_service *service;
+ struct bt_micp *micp;
+ unsigned int ready_id;
+};
+
+static struct queue *sessions;
+
+static void micp_debug(const char *str, void *user_data)
+{
+ DBG_IDX(0xffff, "%s", str);
+}
+
+static int micp_disconnect(struct btd_service *service)
+{
+ return 0;
+}
+
+static struct micp_data *micp_data_new(struct btd_device *device)
+{
+ struct micp_data *data;
+
+ data = new0(struct micp_data, 1);
+ g_assert(data);
+ data->device = device;
+
+ return data;
+}
+
+static void micp_data_add(struct micp_data *data)
+{
+ DBG("data %p", data);
+
+ if (queue_find(sessions, NULL, data)) {
+ error("data %p allready added", data);
+ return;
+ }
+
+ bt_micp_set_debug(data->micp, micp_debug, NULL, NULL);
+
+ if (!sessions)
+ sessions = queue_new();
+
+ queue_push_tail(sessions, data);
+
+ if (data->service)
+ btd_service_set_user_data(data->service, data);
+}
+
+static bool match_data(const void *data, const void *match_data)
+{
+ const struct micp_data *mdata = data;
+ const struct bt_micp *micp = match_data;
+
+ return mdata->micp == micp;
+}
+
+static void micp_data_free(struct micp_data *data)
+{
+ if (data->service) {
+ btd_service_set_user_data(data->service, NULL);
+ bt_micp_set_user_data(data->micp, NULL);
+ }
+
+ bt_micp_ready_unregister(data->micp, data->ready_id);
+ bt_micp_unref(data->micp);
+ free(data);
+}
+
+static void micp_data_remove(struct micp_data *data)
+{
+ DBG("data %p", data);
+
+ if (!queue_remove(sessions, data))
+ return;
+
+ micp_data_free(data);
+
+ if (queue_isempty(sessions)) {
+ queue_destroy(sessions, NULL);
+ sessions = NULL;
+ }
+}
+
+static void micp_detached(struct bt_micp *micp, void *user_data)
+{
+ struct micp_data *data;
+
+ DBG("%p", micp);
+
+ data = queue_find(sessions, match_data, micp);
+ if (!data) {
+ error("unable to find sessio");
+ return;
+ }
+
+ micp_data_remove(data);
+}
+
+static void micp_ready(struct bt_micp *micp, void *user_data)
+{
+ DBG("micp %p\n", micp);
+}
+
+static void micp_attached(struct bt_micp *micp, void *user_data)
+{
+ struct micp_data *data;
+ struct bt_att *att;
+ struct btd_device *device;
+
+ DBG("%p", micp);
+
+ data = queue_find(sessions, match_data, micp);
+ if (data)
+ return;
+
+ att = bt_micp_get_att(micp);
+ if (!att)
+ return;
+
+ device = btd_adapter_find_device_by_fd(bt_att_get_fd(att));
+ if (!device) {
+ error("unable to find device");
+ return;
+ }
+
+ data = micp_data_new(device);
+ g_assert(data);
+ data->micp = micp;
+
+ micp_data_add(data);
+}
+
+static int micp_probe(struct btd_service *service)
+{
+ struct btd_device *device = btd_service_get_device(service);
+ struct btd_adapter *adapter = device_get_adapter(device);
+ struct btd_gatt_database *database = btd_adapter_get_database(adapter);
+ struct micp_data *data = btd_service_get_user_data(service);
+ char addr[18];
+
+ ba2str(device_get_address(device), addr);
+ DBG("%s", addr);
+
+ /*Ignore, if we probed for this device allready */
+ if (data) {
+ error("Profile probed twice for this device");
+ return -EINVAL;
+ }
+
+ data = micp_data_new(device);
+ data->service = service;
+
+ data->micp = bt_micp_new(btd_gatt_database_get_db(database),
+ btd_device_get_gatt_db(device));
+
+ if (!data->micp) {
+ error("unable to create MICP instance");
+ free(data);
+ return -EINVAL;
+ }
+
+ micp_data_add(data);
+
+ data->ready_id = bt_micp_ready_register(data->micp, micp_ready, service,
+ NULL);
+
+ bt_micp_set_user_data(data->micp, service);
+
+ return 0;
+}
+
+static void micp_remove(struct btd_service *service)
+{
+ struct btd_device *device = btd_service_get_device(service);
+ struct micp_data *data;
+ char addr[18];
+
+ ba2str(device_get_address(device), addr);
+ DBG("%s", addr);
+
+ data = btd_service_get_user_data(service);
+ if (!data) {
+ error("MICP Service not handled by profile");
+ return;
+ }
+
+ micp_data_remove(data);
+}
+
+static int micp_accept(struct btd_service *service)
+{
+ struct btd_device *device = btd_service_get_device(service);
+ struct bt_gatt_client *client = btd_device_get_gatt_client(device);
+ struct micp_data *data = btd_service_get_user_data(service);
+ char addr[18];
+
+ ba2str(device_get_address(device), addr);
+ DBG("%s", addr);
+
+ if (!data) {
+ error("MICP Service not handled by profile");
+ return -EINVAL;
+ }
+
+ if (!bt_micp_attach(data->micp, client)) {
+ error("MICP unable to attach");
+ return -EINVAL;
+ }
+
+ btd_service_connecting_complete(service, 0);
+
+ return 0;
+}
+
+static int micp_connect(struct btd_service *service)
+{
+ struct btd_device *device = btd_service_get_device(service);
+ char addr[18];
+
+ ba2str(device_get_address(device), addr);
+ DBG("%s", addr);
+
+ return 0;
+}
+
+static int micp_server_probe(struct btd_profile *p,
+ struct btd_adapter *adapter)
+{
+ struct btd_gatt_database *database = btd_adapter_get_database(adapter);
+
+ DBG("MICP path %s", adapter_get_path(adapter));
+
+ bt_micp_add_db(btd_gatt_database_get_db(database));
+
+ return 0;
+}
+
+static void micp_server_remove(struct btd_profile *p,
+ struct btd_adapter *adapter)
+{
+ DBG("MICP remove adapter");
+}
+
+static struct btd_profile micp_profile = {
+ .name = "micp",
+ .priority = BTD_PROFILE_PRIORITY_MEDIUM,
+ .remote_uuid = MICS_UUID_STR,
+
+ .device_probe = micp_probe,
+ .device_remove = micp_remove,
+
+ .accept = micp_accept,
+ .connect = micp_connect,
+ .disconnect = micp_disconnect,
+
+ .adapter_probe = micp_server_probe,
+ .adapter_remove = micp_server_remove,
+};
+
+static unsigned int micp_id;
+
+static int micp_init(void)
+{
+ if (!(g_dbus_get_flags() & G_DBUS_FLAG_ENABLE_EXPERIMENTAL)) {
+ warn("D-Bus experimental not enabled");
+ return -ENOTSUP;
+ }
+
+ btd_profile_register(&micp_profile);
+ micp_id = bt_micp_register(micp_attached, micp_detached, NULL);
+
+ return 0;
+}
+
+static void micp_exit(void)
+{
+ if (g_dbus_get_flags() & G_DBUS_FLAG_ENABLE_EXPERIMENTAL) {
+ btd_profile_unregister(&micp_profile);
+ bt_micp_unregister(micp_id);
+ }
+}
+
+BLUETOOTH_PLUGIN_DEFINE(micp, VERSION, BLUETOOTH_PLUGIN_PRIORITY_DEFAULT,
+ micp_init, micp_exit)
--
2.34.1
