| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include "os/mynewt.h" |
| |
| #if MYNEWT_VAL(OC_TRANSPORT_GATT) |
| |
| #include <assert.h> |
| #include <string.h> |
| |
| #include "modlog/modlog.h" |
| |
| #include "oic/oc_gatt.h" |
| |
| /* BLE */ |
| #include "nimble/ble.h" |
| #include "host/ble_hs.h" |
| #include "services/gap/ble_svc_gap.h" |
| |
| static int ocf_ble_gap_event(struct ble_gap_event *event, void *arg); |
| |
| /** |
| * Utility function to log an array of bytes. |
| */ |
| void |
| print_bytes(const uint8_t *bytes, int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) { |
| MODLOG_DFLT(INFO, "%s0x%02x", i != 0 ? ":" : "", bytes[i]); |
| } |
| } |
| |
| void |
| print_addr(const void *addr) |
| { |
| const uint8_t *u8p; |
| |
| u8p = addr; |
| MODLOG_DFLT(INFO, "%02x:%02x:%02x:%02x:%02x:%02x", |
| u8p[5], u8p[4], u8p[3], u8p[2], u8p[1], u8p[0]); |
| } |
| |
| /** |
| * Logs information about a connection to the console. |
| */ |
| static void |
| ocf_ble_print_conn_desc(struct ble_gap_conn_desc *desc) |
| { |
| MODLOG_DFLT(INFO, "handle=%d our_ota_addr_type=%d our_ota_addr=", |
| desc->conn_handle, desc->our_ota_addr.type); |
| print_addr(desc->our_ota_addr.val); |
| MODLOG_DFLT(INFO, " our_id_addr_type=%d our_id_addr=", |
| desc->our_id_addr.type); |
| print_addr(desc->our_id_addr.val); |
| MODLOG_DFLT(INFO, " peer_ota_addr_type=%d peer_ota_addr=", |
| desc->peer_ota_addr.type); |
| print_addr(desc->peer_ota_addr.val); |
| MODLOG_DFLT(INFO, " peer_id_addr_type=%d peer_id_addr=", |
| desc->peer_id_addr.type); |
| print_addr(desc->peer_id_addr.val); |
| MODLOG_DFLT(INFO, " conn_itvl=%d conn_latency=%d supervision_timeout=%d " |
| "encrypted=%d authenticated=%d bonded=%d\n", |
| desc->conn_itvl, desc->conn_latency, |
| desc->supervision_timeout, |
| desc->sec_state.encrypted, |
| desc->sec_state.authenticated, |
| desc->sec_state.bonded); |
| } |
| |
| /** |
| * Enables advertising with the following parameters: |
| * o General discoverable mode. |
| * o Undirected connectable mode. |
| */ |
| static void |
| ocf_ble_advertise(void) |
| { |
| struct ble_gap_adv_params adv_params; |
| struct ble_hs_adv_fields fields; |
| const char *name; |
| int rc; |
| |
| /** |
| * Set the advertisement data included in our advertisements: |
| * o Flags (indicates advertisement type and other general info). |
| * o Advertising tx power. |
| * o Device name. |
| */ |
| |
| memset(&fields, 0, sizeof fields); |
| |
| /* Advertise two flags: |
| * o Discoverability in forthcoming advertisement (general) |
| * o BLE-only (BR/EDR unsupported). |
| */ |
| fields.flags = BLE_HS_ADV_F_DISC_GEN | |
| BLE_HS_ADV_F_BREDR_UNSUP; |
| |
| /* Indicate that the TX power level field should be included; have the |
| * stack fill this value automatically. This is done by assiging the |
| * special value BLE_HS_ADV_TX_PWR_LVL_AUTO. |
| */ |
| fields.tx_pwr_lvl_is_present = 1; |
| fields.tx_pwr_lvl = BLE_HS_ADV_TX_PWR_LVL_AUTO; |
| |
| name = ble_svc_gap_device_name(); |
| fields.name = (uint8_t *)name; |
| fields.name_len = strlen(name); |
| fields.name_is_complete = 1; |
| |
| rc = ble_gap_adv_set_fields(&fields); |
| if (rc != 0) { |
| MODLOG_DFLT(ERROR, "error setting advertisement data; rc=%d\n", rc); |
| return; |
| } |
| |
| /* Begin advertising. */ |
| memset(&adv_params, 0, sizeof adv_params); |
| adv_params.conn_mode = BLE_GAP_CONN_MODE_UND; |
| adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN; |
| rc = ble_gap_adv_start(BLE_OWN_ADDR_PUBLIC, NULL, BLE_HS_FOREVER, |
| &adv_params, ocf_ble_gap_event, NULL); |
| if (rc != 0) { |
| MODLOG_DFLT(ERROR, "error enabling advertisement; rc=%d\n", rc); |
| return; |
| } |
| } |
| |
| static void |
| ocf_ble_on_sync(void) |
| { |
| /* Begin advertising. */ |
| ocf_ble_advertise(); |
| } |
| |
| /** |
| * The nimble host executes this callback when a GAP event occurs. The |
| * application associates a GAP event callback with each connection that forms. |
| * ocf_ble uses the same callback for all connections. |
| * |
| * @param event The type of event being signalled. |
| * @param ctxt Various information pertaining to the event. |
| * @param arg Application-specified argument; unuesd by |
| * ocf_ble. |
| * |
| * @return 0 if the application successfully handled the |
| * event; nonzero on failure. The semantics |
| * of the return code is specific to the |
| * particular GAP event being signalled. |
| */ |
| static int |
| ocf_ble_gap_event(struct ble_gap_event *event, void *arg) |
| { |
| struct ble_gap_conn_desc desc; |
| int rc; |
| |
| switch (event->type) { |
| case BLE_GAP_EVENT_CONNECT: |
| /* A new connection was established or a connection attempt failed. */ |
| MODLOG_DFLT(INFO, "connection %s; status=%d ", |
| event->connect.status == 0 ? "established" : "failed", |
| event->connect.status); |
| if (event->connect.status == 0) { |
| rc = ble_gap_conn_find(event->connect.conn_handle, &desc); |
| assert(rc == 0); |
| ocf_ble_print_conn_desc(&desc); |
| } |
| MODLOG_DFLT(INFO, "\n"); |
| |
| if (event->connect.status != 0) { |
| /* Connection failed; resume advertising. */ |
| ocf_ble_advertise(); |
| } |
| return 0; |
| |
| case BLE_GAP_EVENT_DISCONNECT: |
| MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason); |
| ocf_ble_print_conn_desc(&event->disconnect.conn); |
| MODLOG_DFLT(INFO, "\n"); |
| |
| /* Connection terminated; resume advertising. */ |
| ocf_ble_advertise(); |
| return 0; |
| |
| case BLE_GAP_EVENT_CONN_UPDATE: |
| /* The central has updated the connection parameters. */ |
| MODLOG_DFLT(INFO, "connection updated; status=%d ", |
| event->conn_update.status); |
| rc = ble_gap_conn_find(event->connect.conn_handle, &desc); |
| assert(rc == 0); |
| ocf_ble_print_conn_desc(&desc); |
| MODLOG_DFLT(INFO, "\n"); |
| return 0; |
| |
| case BLE_GAP_EVENT_ADV_COMPLETE: |
| MODLOG_DFLT(INFO, "advertise complete; reason=%d\n", |
| event->adv_complete.reason); |
| ocf_ble_advertise(); |
| return 0; |
| |
| case BLE_GAP_EVENT_ENC_CHANGE: |
| /* Encryption has been enabled or disabled for this connection. */ |
| MODLOG_DFLT(INFO, "encryption change event; status=%d ", |
| event->enc_change.status); |
| rc = ble_gap_conn_find(event->connect.conn_handle, &desc); |
| assert(rc == 0); |
| ocf_ble_print_conn_desc(&desc); |
| MODLOG_DFLT(INFO, "\n"); |
| return 0; |
| |
| case BLE_GAP_EVENT_SUBSCRIBE: |
| MODLOG_DFLT(INFO, "subscribe event; conn_handle=%d attr_handle=%d " |
| "reason=%d prevn=%d curn=%d previ=%d curi=%d\n", |
| event->subscribe.conn_handle, |
| event->subscribe.attr_handle, |
| event->subscribe.reason, |
| event->subscribe.prev_notify, |
| event->subscribe.cur_notify, |
| event->subscribe.prev_indicate, |
| event->subscribe.cur_indicate); |
| return 0; |
| |
| case BLE_GAP_EVENT_MTU: |
| MODLOG_DFLT(INFO, "mtu update event; conn_handle=%d cid=%d mtu=%d\n", |
| event->mtu.conn_handle, |
| event->mtu.channel_id, |
| event->mtu.value); |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| static const uint8_t ocf_ble_addr[6] = {1,2,3,4,5,6}; |
| |
| void |
| ocf_ble_init(void) |
| { |
| memcpy(g_dev_addr, ocf_ble_addr, sizeof(g_dev_addr)); |
| |
| /* Initialize the BLE host. */ |
| ble_hs_cfg.sync_cb = ocf_ble_on_sync; |
| } |
| |
| #endif /* MYNEWT_VAL(OC_TRANSPORT_GATT) */ |
