e3cf59bfd3
Add `bt_testlib_att_exchange_mtu` function to simplify the procedure. Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/bluetooth/bluetooth.h>
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#include <zephyr/bluetooth/conn.h>
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#include <zephyr/bluetooth/gatt.h>
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#include <zephyr/bluetooth/att.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(bt_testlib_att, LOG_LEVEL_DBG);
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static uint8_t exchange_mtu_err;
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static K_MUTEX_DEFINE(exchange_mtu_lock);
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static K_CONDVAR_DEFINE(exchange_mtu_done);
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static void bt_testlib_att_exchange_mtu_cb(struct bt_conn *conn, uint8_t err,
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struct bt_gatt_exchange_params *params)
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{
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char addr[BT_ADDR_LE_STR_LEN];
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k_mutex_lock(&exchange_mtu_lock, K_FOREVER);
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bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
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LOG_DBG("MTU exchange %s (%s)", err == 0U ? "successful" : "failed", addr);
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exchange_mtu_err = err;
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k_condvar_signal(&exchange_mtu_done);
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k_mutex_unlock(&exchange_mtu_lock);
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}
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int bt_testlib_att_exchange_mtu(struct bt_conn *conn)
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{
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int err;
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struct bt_gatt_exchange_params exchange_mtu_params;
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__ASSERT_NO_MSG(conn != NULL);
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k_mutex_lock(&exchange_mtu_lock, K_FOREVER);
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exchange_mtu_err = 0;
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exchange_mtu_params.func = bt_testlib_att_exchange_mtu_cb;
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err = bt_gatt_exchange_mtu(conn, &exchange_mtu_params);
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if (err != 0) {
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LOG_ERR("Failed to exchange MTU (err %d)", err);
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k_mutex_unlock(&exchange_mtu_lock);
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return err;
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}
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k_condvar_wait(&exchange_mtu_done, &exchange_mtu_lock, K_FOREVER);
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err = exchange_mtu_err;
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k_mutex_unlock(&exchange_mtu_lock);
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return err;
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}
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