| /* |
| * Copyright (c) 2022 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/bluetooth/bluetooth.h> |
| #include <zephyr/bluetooth/gatt.h> |
| |
| #include "common.h" |
| |
| CREATE_FLAG(flag_is_connected); |
| CREATE_FLAG(flag_is_encrypted); |
| CREATE_FLAG(flag_discover_complete); |
| CREATE_FLAG(flag_subscribed); |
| |
| static struct bt_conn *g_conn; |
| static uint16_t chrc_handle; |
| static uint16_t long_chrc_handle; |
| static struct bt_uuid *test_svc_uuid = TEST_SERVICE_UUID; |
| |
| static void connected(struct bt_conn *conn, uint8_t err) |
| { |
| char addr[BT_ADDR_LE_STR_LEN]; |
| |
| bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr)); |
| |
| if (err != 0) { |
| FAIL("Failed to connect to %s (%u)\n", addr, err); |
| return; |
| } |
| |
| printk("Connected to %s\n", addr); |
| |
| SET_FLAG(flag_is_connected); |
| } |
| |
| static void disconnected(struct bt_conn *conn, uint8_t reason) |
| { |
| char addr[BT_ADDR_LE_STR_LEN]; |
| |
| if (conn != g_conn) { |
| return; |
| } |
| |
| bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr)); |
| |
| printk("Disconnected: %s (reason 0x%02x)\n", addr, reason); |
| |
| bt_conn_unref(g_conn); |
| |
| g_conn = NULL; |
| UNSET_FLAG(flag_is_connected); |
| } |
| |
| void security_changed(struct bt_conn *conn, bt_security_t level, enum bt_security_err err) |
| { |
| if (err) { |
| FAIL("Encryption failer (%d)\n", err); |
| } else if (level < BT_SECURITY_L2) { |
| FAIL("Insufficient sec level (%d)\n", level); |
| } else { |
| SET_FLAG(flag_is_encrypted); |
| } |
| } |
| |
| BT_CONN_CB_DEFINE(conn_callbacks) = { |
| .connected = connected, |
| .disconnected = disconnected, |
| .security_changed = security_changed, |
| }; |
| |
| void device_found(const bt_addr_le_t *addr, int8_t rssi, uint8_t type, struct net_buf_simple *ad) |
| { |
| char addr_str[BT_ADDR_LE_STR_LEN]; |
| int err; |
| |
| if (g_conn != NULL) { |
| return; |
| } |
| |
| /* We're only interested in connectable events */ |
| if (type != BT_HCI_ADV_IND && type != BT_HCI_ADV_DIRECT_IND) { |
| return; |
| } |
| |
| bt_addr_le_to_str(addr, addr_str, sizeof(addr_str)); |
| printk("Device found: %s (RSSI %d)\n", addr_str, rssi); |
| |
| printk("Stopping scan\n"); |
| err = bt_le_scan_stop(); |
| if (err != 0) { |
| FAIL("Could not stop scan: %d"); |
| return; |
| } |
| |
| err = bt_conn_le_create(addr, BT_CONN_LE_CREATE_CONN, BT_LE_CONN_PARAM_DEFAULT, &g_conn); |
| if (err != 0) { |
| FAIL("Could not connect to peer: %d", err); |
| } |
| } |
| |
| static uint8_t discover_func(struct bt_conn *conn, const struct bt_gatt_attr *attr, |
| struct bt_gatt_discover_params *params) |
| { |
| int err; |
| |
| if (attr == NULL) { |
| if (chrc_handle == 0 || long_chrc_handle == 0) { |
| FAIL("Did not discover chrc (%x) or long_chrc (%x)", chrc_handle, |
| long_chrc_handle); |
| } |
| |
| (void)memset(params, 0, sizeof(*params)); |
| |
| SET_FLAG(flag_discover_complete); |
| |
| return BT_GATT_ITER_STOP; |
| } |
| |
| printk("[ATTRIBUTE] handle %u\n", attr->handle); |
| |
| if (params->type == BT_GATT_DISCOVER_PRIMARY && |
| bt_uuid_cmp(params->uuid, TEST_SERVICE_UUID) == 0) { |
| printk("Found test service\n"); |
| params->uuid = NULL; |
| params->start_handle = attr->handle + 1; |
| params->type = BT_GATT_DISCOVER_CHARACTERISTIC; |
| |
| err = bt_gatt_discover(conn, params); |
| if (err != 0) { |
| FAIL("Discover failed (err %d)\n", err); |
| } |
| |
| return BT_GATT_ITER_STOP; |
| } else if (params->type == BT_GATT_DISCOVER_CHARACTERISTIC) { |
| const struct bt_gatt_chrc *chrc = (struct bt_gatt_chrc *)attr->user_data; |
| |
| if (bt_uuid_cmp(chrc->uuid, TEST_CHRC_UUID) == 0) { |
| printk("Found chrc\n"); |
| chrc_handle = chrc->value_handle; |
| } else if (bt_uuid_cmp(chrc->uuid, TEST_LONG_CHRC_UUID) == 0) { |
| printk("Found long_chrc\n"); |
| long_chrc_handle = chrc->value_handle; |
| } |
| } |
| |
| return BT_GATT_ITER_CONTINUE; |
| } |
| |
| static void gatt_discover(void) |
| { |
| static struct bt_gatt_discover_params discover_params; |
| int err; |
| |
| printk("Discovering services and characteristics\n"); |
| |
| discover_params.uuid = test_svc_uuid; |
| discover_params.func = discover_func; |
| discover_params.start_handle = BT_ATT_FIRST_ATTRIBUTE_HANDLE; |
| discover_params.end_handle = BT_ATT_LAST_ATTRIBUTE_HANDLE; |
| discover_params.type = BT_GATT_DISCOVER_PRIMARY; |
| |
| err = bt_gatt_discover(g_conn, &discover_params); |
| if (err != 0) { |
| FAIL("Discover failed(err %d)\n", err); |
| } |
| |
| WAIT_FOR_FLAG(flag_discover_complete); |
| printk("Discover complete\n"); |
| } |
| |
| static void test_subscribed(struct bt_conn *conn, uint8_t err, struct bt_gatt_write_params *params) |
| { |
| if (err) { |
| FAIL("Subscribe failed (err %d)\n", err); |
| } |
| |
| SET_FLAG(flag_subscribed); |
| |
| if (!params) { |
| printk("params NULL\n"); |
| return; |
| } |
| |
| if (params->handle == chrc_handle) { |
| printk("Subscribed to short characteristic\n"); |
| } else if (params->handle == long_chrc_handle) { |
| printk("Subscribed to long characteristic\n"); |
| } else { |
| FAIL("Unknown handle %d\n", params->handle); |
| } |
| } |
| |
| static volatile size_t num_notifications; |
| uint8_t test_notify(struct bt_conn *conn, struct bt_gatt_subscribe_params *params, const void *data, |
| uint16_t length) |
| { |
| printk("Received notification #%u with length %d\n", num_notifications++, length); |
| |
| return BT_GATT_ITER_CONTINUE; |
| } |
| |
| static struct bt_gatt_discover_params disc_params_short; |
| static struct bt_gatt_subscribe_params sub_params_short = { |
| .notify = test_notify, |
| .write = test_subscribed, |
| .ccc_handle = 0, /* Auto-discover CCC*/ |
| .disc_params = &disc_params_short, /* Auto-discover CCC */ |
| .end_handle = BT_ATT_LAST_ATTRIBUTE_HANDLE, |
| .value = BT_GATT_CCC_NOTIFY, |
| }; |
| static struct bt_gatt_discover_params disc_params_long; |
| static struct bt_gatt_subscribe_params sub_params_long = { |
| .notify = test_notify, |
| .write = test_subscribed, |
| .ccc_handle = 0, /* Auto-discover CCC*/ |
| .disc_params = &disc_params_long, /* Auto-discover CCC */ |
| .end_handle = BT_ATT_LAST_ATTRIBUTE_HANDLE, |
| .value = BT_GATT_CCC_NOTIFY, |
| }; |
| |
| static void gatt_subscribe_short(void) |
| { |
| int err; |
| |
| sub_params_short.value_handle = chrc_handle; |
| err = bt_gatt_subscribe(g_conn, &sub_params_short); |
| if (err < 0) { |
| FAIL("Failed to subscribe\n"); |
| } else { |
| printk("Subscribe request sent\n"); |
| } |
| WAIT_FOR_FLAG(flag_subscribed); |
| } |
| |
| static void gatt_subscribe_long(void) |
| { |
| int err; |
| |
| UNSET_FLAG(flag_subscribed); |
| sub_params_long.value_handle = long_chrc_handle; |
| err = bt_gatt_subscribe(g_conn, &sub_params_long); |
| if (err < 0) { |
| FAIL("Failed to subscribe\n"); |
| } else { |
| printk("Subscribe request sent\n"); |
| } |
| WAIT_FOR_FLAG(flag_subscribed); |
| } |
| |
| static void test_main(void) |
| { |
| int err; |
| |
| err = bt_enable(NULL); |
| if (err != 0) { |
| FAIL("Bluetooth discover failed (err %d)\n", err); |
| } |
| |
| err = bt_le_scan_start(BT_LE_SCAN_PASSIVE, device_found); |
| if (err != 0) { |
| FAIL("Scanning failed to start (err %d)\n", err); |
| } |
| |
| printk("Scanning successfully started\n"); |
| |
| WAIT_FOR_FLAG(flag_is_connected); |
| |
| err = bt_conn_set_security(g_conn, BT_SECURITY_L2); |
| if (err) { |
| FAIL("Starting encryption procedure failed (%d)\n", err); |
| } |
| |
| WAIT_FOR_FLAG(flag_is_encrypted); |
| |
| while (bt_eatt_count(g_conn) < CONFIG_BT_EATT_MAX) { |
| k_sleep(K_MSEC(10)); |
| } |
| |
| printk("EATT connected\n"); |
| |
| gatt_discover(); |
| gatt_subscribe_short(); |
| gatt_subscribe_long(); |
| |
| printk("Subscribed\n"); |
| |
| while (num_notifications < NOTIFICATION_COUNT) { |
| k_sleep(K_MSEC(100)); |
| } |
| |
| PASS("GATT client Passed\n"); |
| } |
| |
| static const struct bst_test_instance test_vcs[] = { |
| { |
| .test_id = "gatt_client", |
| .test_post_init_f = test_init, |
| .test_tick_f = test_tick, |
| .test_main_f = test_main, |
| }, |
| BSTEST_END_MARKER, |
| }; |
| |
| struct bst_test_list *test_gatt_client_install(struct bst_test_list *tests) |
| { |
| return bst_add_tests(tests, test_vcs); |
| } |