773 lines
32 KiB
C
773 lines
32 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Dan Halbert for Adafruit Industries
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* Copyright (c) 2018 Artur Pacholec
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "shared-bindings/_bleio/Connection.h"
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#include "att.h"
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#include <string.h>
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#include <stdio.h>
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#include "shared/runtime/interrupt_char.h"
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#include "py/gc.h"
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#include "py/objlist.h"
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#include "py/objstr.h"
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#include "py/qstr.h"
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#include "py/runtime.h"
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#include "shared-bindings/_bleio/__init__.h"
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#include "shared-bindings/_bleio/Adapter.h"
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#include "shared-bindings/_bleio/Attribute.h"
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#include "shared-bindings/_bleio/Characteristic.h"
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#include "shared-bindings/_bleio/Service.h"
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#include "shared-bindings/_bleio/UUID.h"
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#include "supervisor/shared/tick.h"
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#define BLE_ADV_LENGTH_FIELD_SIZE 1
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#define BLE_ADV_AD_TYPE_FIELD_SIZE 1
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#define BLE_AD_TYPE_FLAGS_DATA_SIZE 1
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// static const ble_gap_sec_params_t pairing_sec_params = {
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// .bond = 1,
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// .mitm = 0,
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// .lesc = 0,
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// .keypress = 0,
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// .oob = 0,
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// .io_caps = BLE_GAP_IO_CAPS_NONE,
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// .min_key_size = 7,
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// .max_key_size = 16,
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// .kdist_own = { .enc = 1, .id = 1},
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// .kdist_peer = { .enc = 1, .id = 1},
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// };
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#define CONNECTION_DEBUG (1)
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#if CONNECTION_DEBUG
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#define CONNECTION_DEBUG_PRINTF(...) printf(__VA_ARGS__)
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#else
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#define CONNECTION_DEBUG_PRINTF(...)
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#endif
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static volatile bool m_discovery_in_process;
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static volatile bool m_discovery_successful;
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// FIX static bleio_service_obj_t *m_char_discovery_service;
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// FIX static bleio_characteristic_obj_t *m_desc_discovery_characteristic;
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// bool connection_on_ble_evt(ble_evt_t *ble_evt, void *self_in) {
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// bleio_connection_internal_t *self = (bleio_connection_internal_t*)self_in;
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// if (BLE_GAP_EVT_BASE <= ble_evt->header.evt_id && ble_evt->header.evt_id <= BLE_GAP_EVT_LAST &&
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// ble_evt->evt.gap_evt.conn_handle != self->conn_handle) {
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// return false;
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// }
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// if (BLE_GATTS_EVT_BASE <= ble_evt->header.evt_id && ble_evt->header.evt_id <= BLE_GATTS_EVT_LAST &&
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// ble_evt->evt.gatts_evt.conn_handle != self->conn_handle) {
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// return false;
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// }
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// switch (ble_evt->header.evt_id) {
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// case BLE_GAP_EVT_DISCONNECTED:
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// // Adapter.c does the work for this event.
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// break;
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// case BLE_GAP_EVT_PHY_UPDATE_REQUEST: {
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// ble_gap_phys_t const phys = {
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// .rx_phys = BLE_GAP_PHY_AUTO,
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// .tx_phys = BLE_GAP_PHY_AUTO,
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// };
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// sd_ble_gap_phy_update(ble_evt->evt.gap_evt.conn_handle, &phys);
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// break;
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// }
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// case BLE_GAP_EVT_PHY_UPDATE: { // 0x22
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// break;
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// }
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// case BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST:
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// // SoftDevice will respond to a length update request.
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// sd_ble_gap_data_length_update(self->conn_handle, NULL, NULL);
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// break;
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// case BLE_GAP_EVT_DATA_LENGTH_UPDATE: { // 0x24
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// break;
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// }
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// case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST: {
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// ble_gatts_evt_exchange_mtu_request_t *request =
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// &ble_evt->evt.gatts_evt.params.exchange_mtu_request;
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// uint16_t new_mtu = BLE_GATTS_VAR_ATTR_LEN_MAX;
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// if (request->client_rx_mtu < new_mtu) {
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// new_mtu = request->client_rx_mtu;
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// }
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// if (new_mtu < BLE_GATT_ATT_MTU_DEFAULT) {
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// new_mtu = BLE_GATT_ATT_MTU_DEFAULT;
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// }
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// if (self->mtu > 0) {
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// new_mtu = self->mtu;
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// }
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// self->mtu = new_mtu;
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// sd_ble_gatts_exchange_mtu_reply(self->conn_handle, new_mtu);
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// break;
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// }
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// case BLE_GATTC_EVT_EXCHANGE_MTU_RSP: {
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// ble_gattc_evt_exchange_mtu_rsp_t *response =
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// &ble_evt->evt.gattc_evt.params.exchange_mtu_rsp;
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// self->mtu = response->server_rx_mtu;
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// break;
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// }
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// case BLE_GATTS_EVT_WRITE:
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// // A client wrote a value.
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// // If we are bonded and it's a CCCD (UUID 0x2902), store the CCCD value.
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// if (self->conn_handle != BLE_CONN_HANDLE_INVALID &&
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// self->pair_status == PAIR_PAIRED &&
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// ble_evt->evt.gatts_evt.params.write.uuid.type == BLE_UUID_TYPE_BLE &&
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// ble_evt->evt.gatts_evt.params.write.uuid.uuid == 0x2902) {
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// //
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// // Save sys_attr data (CCCD state) in bonding area at
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// // next opportunity, but also remember time of this
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// // request, so we can consolidate closely-spaced requests.
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// self->do_bond_cccds = true;
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// self->do_bond_cccds_request_time = supervisor_ticks_ms64();
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// }
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// // Return false so other handlers get this event as well.
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// return false;
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// case BLE_GATTS_EVT_SYS_ATTR_MISSING:
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// sd_ble_gatts_sys_attr_set(self->conn_handle, NULL, 0, 0);
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// break;
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// #if CIRCUITPY_VERBOSE_BLE
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// // Use read authorization to snoop on all reads when doing verbose debugging.
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// case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST: {
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// ble_gatts_evt_rw_authorize_request_t *request =
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// &ble_evt->evt.gatts_evt.params.authorize_request;
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// mp_printf(&mp_plat_print, "Read %x offset %d ", request->request.read.handle, request->request.read.offset);
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// uint8_t value_bytes[22];
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// ble_gatts_value_t value;
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// value.offset = request->request.read.offset;
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// value.len = 22;
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// value.p_value = value_bytes;
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// sd_ble_gatts_value_get(self->conn_handle, request->request.read.handle, &value);
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// size_t len = value.len;
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// if (len > 22) {
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// len = 22;
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// }
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// for (uint8_t i = 0; i < len; i++) {
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// mp_printf(&mp_plat_print, " %02x", value_bytes[i]);
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// }
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// mp_printf(&mp_plat_print, "\n");
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// ble_gatts_rw_authorize_reply_params_t reply;
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// reply.type = request->type;
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// reply.params.read.gatt_status = BLE_GATT_STATUS_SUCCESS;
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// reply.params.read.update = false;
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// reply.params.read.offset = request->request.read.offset;
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// sd_ble_gatts_rw_authorize_reply(self->conn_handle, &reply);
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// break;
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// }
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// #endif
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// case BLE_GATTS_EVT_HVN_TX_COMPLETE: // Capture this for now. 0x55
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// break;
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// case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST: {
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// self->conn_params_updating = true;
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// ble_gap_evt_conn_param_update_request_t *request =
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// &ble_evt->evt.gap_evt.params.conn_param_update_request;
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// sd_ble_gap_conn_param_update(self->conn_handle, &request->conn_params);
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// break;
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// }
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// case BLE_GAP_EVT_CONN_PARAM_UPDATE: { // 0x12
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// ble_gap_evt_conn_param_update_t *result =
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// &ble_evt->evt.gap_evt.params.conn_param_update;
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// #if CIRCUITPY_VERBOSE_BLE
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// ble_gap_conn_params_t *cp = &ble_evt->evt.gap_evt.params.conn_param_update.conn_params;
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// mp_printf(&mp_plat_print, "conn params updated: min_ci %d max_ci %d s_l %d sup_timeout %d\n", cp->min_conn_interval, cp->max_conn_interval, cp->slave_latency, cp->conn_sup_timeout);
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// #endif
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// memcpy(&self->conn_params, &result->conn_params, sizeof(ble_gap_conn_params_t));
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// self->conn_params_updating = false;
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// break;
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// }
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// case BLE_GAP_EVT_SEC_PARAMS_REQUEST: {
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// // First time pairing.
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// // 1. Either we or peer initiate the process
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// // 2. Peer asks for security parameters using BLE_GAP_EVT_SEC_PARAMS_REQUEST.
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// // 3. Pair Key exchange ("just works" implemented now; TODO: out-of-band key pairing)
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// // 4. Connection is secured: BLE_GAP_EVT_CONN_SEC_UPDATE
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// // 5. Long-term Keys exchanged: BLE_GAP_EVT_AUTH_STATUS
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// bonding_clear_keys(&self->bonding_keys);
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// self->ediv = EDIV_INVALID;
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// ble_gap_sec_keyset_t keyset = {
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// .keys_own = {
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// .p_enc_key = &self->bonding_keys.own_enc,
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// .p_id_key = NULL,
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// .p_sign_key = NULL,
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// .p_pk = NULL
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// },
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// .keys_peer = {
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// .p_enc_key = &self->bonding_keys.peer_enc,
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// .p_id_key = &self->bonding_keys.peer_id,
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// .p_sign_key = NULL,
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// .p_pk = NULL
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// }
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// };
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// sd_ble_gap_sec_params_reply(self->conn_handle, BLE_GAP_SEC_STATUS_SUCCESS,
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// self->is_central ? NULL : &pairing_sec_params,
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// &keyset);
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// break;
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// }
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// case BLE_GAP_EVT_LESC_DHKEY_REQUEST:
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// // TODO for LESC pairing:
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// // sd_ble_gap_lesc_dhkey_reply(...);
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// break;
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// case BLE_GAP_EVT_AUTH_STATUS: { // 0x19
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// // Key exchange completed.
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// ble_gap_evt_auth_status_t* status = &ble_evt->evt.gap_evt.params.auth_status;
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// self->sec_status = status->auth_status;
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// if (status->auth_status == BLE_GAP_SEC_STATUS_SUCCESS) {
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// self->ediv = self->bonding_keys.own_enc.master_id.ediv;
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// self->pair_status = PAIR_PAIRED;
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// // Save keys in bonding area at next opportunity.
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// self->do_bond_keys = true;
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// } else {
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// // Inform busy-waiter pairing has failed.
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// self->pair_status = PAIR_NOT_PAIRED;
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// }
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// break;
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// }
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// case BLE_GAP_EVT_SEC_INFO_REQUEST: { // 0x14
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// // Peer asks for the stored keys.
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// // - load key and return if bonded previously.
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// // - Else return NULL --> Initiate key exchange
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// ble_gap_evt_sec_info_request_t* sec_info_request = &ble_evt->evt.gap_evt.params.sec_info_request;
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// (void) sec_info_request;
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// if ( bonding_load_keys(self->is_central, sec_info_request->master_id.ediv, &self->bonding_keys) ) {
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// sd_ble_gap_sec_info_reply(
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// self->conn_handle,
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// &self->bonding_keys.own_enc.enc_info,
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// &self->bonding_keys.peer_id.id_info,
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// NULL);
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// self->ediv = self->bonding_keys.own_enc.master_id.ediv;
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// } else {
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// // We don't have stored keys. Ask for keys.
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// sd_ble_gap_sec_info_reply(self->conn_handle, NULL, NULL, NULL);
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// }
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// break;
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// }
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// case BLE_GAP_EVT_CONN_SEC_UPDATE: { // 0x1a
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// // We get this both on first-time pairing and on subsequent pairings using stored keys.
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// ble_gap_conn_sec_t* conn_sec = &ble_evt->evt.gap_evt.params.conn_sec_update.conn_sec;
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// if (conn_sec->sec_mode.sm <= 1 && conn_sec->sec_mode.lv <= 1) {
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// // Security setup did not succeed:
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// // mode 0, level 0 means no access
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// // mode 1, level 1 means open link
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// // mode >=1 and/or level >=1 means encryption is set up
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// self->pair_status = PAIR_NOT_PAIRED;
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// } else {
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// if (bonding_load_cccd_info(self->is_central, self->conn_handle, self->ediv)) {
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// // Did an sd_ble_gatts_sys_attr_set() with the stored sys_attr values.
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// } else {
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// // No matching bonding found, so use fresh system attributes.
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// sd_ble_gatts_sys_attr_set(self->conn_handle, NULL, 0, 0);
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// }
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// self->pair_status = PAIR_PAIRED;
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// }
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// break;
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// }
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// default:
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// return false;
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// }
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// return true;
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// }
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void bleio_connection_clear(bleio_connection_internal_t *self) {
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mp_obj_list_clear(MP_OBJ_FROM_PTR(self->remote_service_list));
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self->conn_handle = BLE_CONN_HANDLE_INVALID;
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self->pair_status = PAIR_NOT_PAIRED;
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self->is_central = false;
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// FIX bonding_clear_keys(&self->bonding_keys);
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}
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bool common_hal_bleio_connection_get_paired(bleio_connection_obj_t *self) {
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if (self->connection == NULL) {
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return false;
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}
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return self->connection->pair_status == PAIR_PAIRED;
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}
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bool common_hal_bleio_connection_get_connected(bleio_connection_obj_t *self) {
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if (self->connection == NULL) {
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return false;
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}
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return self->connection->conn_handle != BLE_CONN_HANDLE_INVALID;
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}
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void common_hal_bleio_connection_disconnect(bleio_connection_internal_t *self) {
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hci_disconnect(self->conn_handle);
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}
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void common_hal_bleio_connection_pair(bleio_connection_internal_t *self, bool bond) {
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self->pair_status = PAIR_WAITING;
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// FIX check_nrf_error(sd_ble_gap_authenticate(self->conn_handle, &pairing_sec_params));
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while (self->pair_status == PAIR_WAITING && !mp_hal_is_interrupted()) {
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RUN_BACKGROUND_TASKS;
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}
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if (mp_hal_is_interrupted()) {
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return;
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}
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// FIX check_sec_status(self->sec_status);
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}
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mp_float_t common_hal_bleio_connection_get_connection_interval(bleio_connection_internal_t *self) {
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while (self->conn_params_updating && !mp_hal_is_interrupted()) {
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RUN_BACKGROUND_TASKS;
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}
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// FIX return 1.25f * self->conn_params.min_conn_interval;
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return 0.0f;
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}
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// Return the current negotiated MTU length, minus overhead.
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mp_int_t common_hal_bleio_connection_get_max_packet_length(bleio_connection_internal_t *self) {
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return (self->mtu == 0 ? BT_ATT_DEFAULT_LE_MTU : self->mtu) - 3;
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}
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void common_hal_bleio_connection_set_connection_interval(bleio_connection_internal_t *self, mp_float_t new_interval) {
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// self->conn_params_updating = true;
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// uint16_t interval = new_interval / 1.25f;
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// self->conn_params.min_conn_interval = interval;
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// self->conn_params.max_conn_interval = interval;
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// uint32_t status = NRF_ERROR_BUSY;
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// while (status == NRF_ERROR_BUSY) {
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// status = sd_ble_gap_conn_param_update(self->conn_handle, &self->conn_params);
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// RUN_BACKGROUND_TASKS;
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// }
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// check_nrf_error(status);
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}
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// service_uuid may be NULL, to discover all services.
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// STATIC bool discover_next_services(bleio_connection_internal_t* connection, uint16_t start_handle, ble_uuid_t *service_uuid) {
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// m_discovery_successful = false;
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// m_discovery_in_process = true;
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// uint32_t nrf_err = NRF_ERROR_BUSY;
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// while (nrf_err == NRF_ERROR_BUSY) {
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// nrf_err = sd_ble_gattc_primary_services_discover(connection->conn_handle, start_handle, service_uuid);
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// }
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// check_nrf_error(nrf_err);
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// // Wait for a discovery event.
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// while (m_discovery_in_process) {
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// MICROPY_VM_HOOK_LOOP;
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// }
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// return m_discovery_successful;
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// }
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// STATIC bool discover_next_characteristics(bleio_connection_internal_t* connection, bleio_service_obj_t *service, uint16_t start_handle) {
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// m_char_discovery_service = service;
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// ble_gattc_handle_range_t handle_range;
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// handle_range.start_handle = start_handle;
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// handle_range.end_handle = service->end_handle;
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// m_discovery_successful = false;
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// m_discovery_in_process = true;
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// uint32_t err_code = sd_ble_gattc_characteristics_discover(connection->conn_handle, &handle_range);
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// if (err_code != NRF_SUCCESS) {
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// return false;
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// }
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|
// // Wait for a discovery event.
|
|
// while (m_discovery_in_process) {
|
|
// MICROPY_VM_HOOK_LOOP;
|
|
// }
|
|
// return m_discovery_successful;
|
|
// }
|
|
|
|
// STATIC bool discover_next_descriptors(bleio_connection_internal_t* connection, bleio_characteristic_obj_t *characteristic, uint16_t start_handle, uint16_t end_handle) {
|
|
// m_desc_discovery_characteristic = characteristic;
|
|
|
|
// ble_gattc_handle_range_t handle_range;
|
|
// handle_range.start_handle = start_handle;
|
|
// handle_range.end_handle = end_handle;
|
|
|
|
// m_discovery_successful = false;
|
|
// m_discovery_in_process = true;
|
|
|
|
// uint32_t err_code = sd_ble_gattc_descriptors_discover(connection->conn_handle, &handle_range);
|
|
// if (err_code != NRF_SUCCESS) {
|
|
// return false;
|
|
// }
|
|
|
|
// // Wait for a discovery event.
|
|
// while (m_discovery_in_process) {
|
|
// MICROPY_VM_HOOK_LOOP;
|
|
// }
|
|
// return m_discovery_successful;
|
|
// }
|
|
|
|
// STATIC void on_primary_srv_discovery_rsp(ble_gattc_evt_prim_srvc_disc_rsp_t *response, bleio_connection_internal_t* connection) {
|
|
// for (size_t i = 0; i < response->count; ++i) {
|
|
// ble_gattc_service_t *gattc_service = &response->services[i];
|
|
|
|
// bleio_service_obj_t *service = m_new_obj(bleio_service_obj_t);
|
|
// service->base.type = &bleio_service_type;
|
|
|
|
// // Initialize several fields at once.
|
|
// bleio_service_from_connection(service, bleio_connection_new_from_internal(connection));
|
|
|
|
// service->is_remote = true;
|
|
// service->start_handle = gattc_service->handle_range.start_handle;
|
|
// service->end_handle = gattc_service->handle_range.end_handle;
|
|
// service->handle = gattc_service->handle_range.start_handle;
|
|
|
|
// if (gattc_service->uuid.type != BLE_UUID_TYPE_UNKNOWN) {
|
|
// // Known service UUID.
|
|
// bleio_uuid_obj_t *uuid = m_new_obj(bleio_uuid_obj_t);
|
|
// uuid->base.type = &bleio_uuid_type;
|
|
// bleio_uuid_construct_from_nrf_ble_uuid(uuid, &gattc_service->uuid);
|
|
// service->uuid = uuid;
|
|
// } else {
|
|
// // The discovery response contained a 128-bit UUID that has not yet been registered with the
|
|
// // softdevice via sd_ble_uuid_vs_add(). We need to fetch the 128-bit value and register it.
|
|
// // For now, just set the UUID to NULL.
|
|
// service->uuid = NULL;
|
|
// }
|
|
//
|
|
// mp_obj_list_append(MP_OBJ_FROM_PTR(connection->remote_service_list),
|
|
// MP_OBJ_FROM_PTR(service));
|
|
// }
|
|
//
|
|
// if (response->count > 0) {
|
|
// m_discovery_successful = true;
|
|
// }
|
|
// m_discovery_in_process = false;
|
|
// }
|
|
|
|
// STATIC void on_char_discovery_rsp(ble_gattc_evt_char_disc_rsp_t *response, bleio_connection_internal_t* connection) {
|
|
// for (size_t i = 0; i < response->count; ++i) {
|
|
// ble_gattc_char_t *gattc_char = &response->chars[i];
|
|
|
|
// bleio_characteristic_obj_t *characteristic = m_new_obj(bleio_characteristic_obj_t);
|
|
// characteristic->base.type = &bleio_characteristic_type;
|
|
|
|
// bleio_uuid_obj_t *uuid = NULL;
|
|
|
|
// if (gattc_char->uuid.type != BLE_UUID_TYPE_UNKNOWN) {
|
|
// // Known characteristic UUID.
|
|
// uuid = m_new_obj(bleio_uuid_obj_t);
|
|
// uuid->base.type = &bleio_uuid_type;
|
|
// bleio_uuid_construct_from_nrf_ble_uuid(uuid, &gattc_char->uuid);
|
|
// } else {
|
|
// // The discovery response contained a 128-bit UUID that has not yet been registered with the
|
|
// // softdevice via sd_ble_uuid_vs_add(). We need to fetch the 128-bit value and register it.
|
|
// // For now, just leave the UUID as NULL.
|
|
// }
|
|
|
|
// bleio_characteristic_properties_t props =
|
|
// (gattc_char->char_props.broadcast ? CHAR_PROP_BROADCAST : 0) |
|
|
// (gattc_char->char_props.indicate ? CHAR_PROP_INDICATE : 0) |
|
|
// (gattc_char->char_props.notify ? CHAR_PROP_NOTIFY : 0) |
|
|
// (gattc_char->char_props.read ? CHAR_PROP_READ : 0) |
|
|
// (gattc_char->char_props.write ? CHAR_PROP_WRITE : 0) |
|
|
// (gattc_char->char_props.write_wo_resp ? CHAR_PROP_WRITE_NO_RESPONSE : 0);
|
|
|
|
// // Call common_hal_bleio_characteristic_construct() to initalize some fields and set up evt handler.
|
|
// common_hal_bleio_characteristic_construct(
|
|
// characteristic, m_char_discovery_service, gattc_char->handle_value, uuid,
|
|
// props, SECURITY_MODE_OPEN, SECURITY_MODE_OPEN,
|
|
// GATT_MAX_DATA_LENGTH, false, // max_length, fixed_length: values may not matter for gattc
|
|
// NULL);
|
|
|
|
// mp_obj_list_append(MP_OBJ_FROM_PTR(m_char_discovery_service->characteristic_list),
|
|
// MP_OBJ_FROM_PTR(characteristic));
|
|
// }
|
|
|
|
// if (response->count > 0) {
|
|
// m_discovery_successful = true;
|
|
// }
|
|
// m_discovery_in_process = false;
|
|
// }
|
|
|
|
// STATIC void on_desc_discovery_rsp(ble_gattc_evt_desc_disc_rsp_t *response, bleio_connection_internal_t* connection) {
|
|
// for (size_t i = 0; i < response->count; ++i) {
|
|
// ble_gattc_desc_t *gattc_desc = &response->descs[i];
|
|
|
|
// // Remember handles for certain well-known descriptors.
|
|
// switch (gattc_desc->uuid.uuid) {
|
|
// case BLE_UUID_DESCRIPTOR_CLIENT_CHAR_CONFIG:
|
|
// m_desc_discovery_characteristic->cccd_handle = gattc_desc->handle;
|
|
// break;
|
|
|
|
// case BLE_UUID_DESCRIPTOR_SERVER_CHAR_CONFIG:
|
|
// m_desc_discovery_characteristic->sccd_handle = gattc_desc->handle;
|
|
// break;
|
|
|
|
// case BLE_UUID_DESCRIPTOR_CHAR_USER_DESC:
|
|
// m_desc_discovery_characteristic->user_desc_handle = gattc_desc->handle;
|
|
// break;
|
|
|
|
// default:
|
|
// // TODO: sd_ble_gattc_descriptors_discover() can return things that are not descriptors,
|
|
// // so ignore those.
|
|
// // https://devzone.nordicsemi.com/f/nordic-q-a/49500/sd_ble_gattc_descriptors_discover-is-returning-attributes-that-are-not-descriptors
|
|
// break;
|
|
// }
|
|
|
|
// bleio_descriptor_obj_t *descriptor = m_new_obj(bleio_descriptor_obj_t);
|
|
// descriptor->base.type = &bleio_descriptor_type;
|
|
|
|
// bleio_uuid_obj_t *uuid = NULL;
|
|
|
|
// if (gattc_desc->uuid.type != BLE_UUID_TYPE_UNKNOWN) {
|
|
// // Known descriptor UUID.
|
|
// uuid = m_new_obj(bleio_uuid_obj_t);
|
|
// uuid->base.type = &bleio_uuid_type;
|
|
// bleio_uuid_construct_from_nrf_ble_uuid(uuid, &gattc_desc->uuid);
|
|
// } else {
|
|
// // The discovery response contained a 128-bit UUID that has not yet been registered with the
|
|
// // softdevice via sd_ble_uuid_vs_add(). We need to fetch the 128-bit value and register it.
|
|
// // For now, just leave the UUID as NULL.
|
|
// }
|
|
|
|
// common_hal_bleio_descriptor_construct(
|
|
// descriptor, m_desc_discovery_characteristic, uuid,
|
|
// SECURITY_MODE_OPEN, SECURITY_MODE_OPEN,
|
|
// GATT_MAX_DATA_LENGTH, false, mp_const_empty_bytes);
|
|
// descriptor->handle = gattc_desc->handle;
|
|
|
|
// mp_obj_list_append(MP_OBJ_FROM_PTR(m_desc_discovery_characteristic->descriptor_list),
|
|
// MP_OBJ_FROM_PTR(descriptor));
|
|
// }
|
|
|
|
// if (response->count > 0) {
|
|
// m_discovery_successful = true;
|
|
// }
|
|
// m_discovery_in_process = false;
|
|
// }
|
|
|
|
// STATIC bool discovery_on_ble_evt(ble_evt_t *ble_evt, mp_obj_t payload) {
|
|
// bleio_connection_internal_t* connection = MP_OBJ_TO_PTR(payload);
|
|
// switch (ble_evt->header.evt_id) {
|
|
// case BLE_GAP_EVT_DISCONNECTED:
|
|
// m_discovery_successful = false;
|
|
// m_discovery_in_process = false;
|
|
// break;
|
|
|
|
// case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
|
|
// on_primary_srv_discovery_rsp(&ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp, connection);
|
|
// break;
|
|
|
|
// case BLE_GATTC_EVT_CHAR_DISC_RSP:
|
|
// on_char_discovery_rsp(&ble_evt->evt.gattc_evt.params.char_disc_rsp, connection);
|
|
// break;
|
|
|
|
// case BLE_GATTC_EVT_DESC_DISC_RSP:
|
|
// on_desc_discovery_rsp(&ble_evt->evt.gattc_evt.params.desc_disc_rsp, connection);
|
|
// break;
|
|
|
|
// default:
|
|
// // CONNECTION_DEBUG_PRINTF(&mp_plat_print, "Unhandled discovery event: 0x%04x\n", ble_evt->header.evt_id);
|
|
// return false;
|
|
// break;
|
|
// }
|
|
// return true;
|
|
// }
|
|
|
|
// STATIC void discover_remote_services(bleio_connection_internal_t *self, mp_obj_t service_uuids_whitelist) {
|
|
// ble_drv_add_event_handler(discovery_on_ble_evt, self);
|
|
|
|
// // Start over with an empty list.
|
|
// self->remote_service_list = mp_obj_new_list(0, NULL);
|
|
|
|
|
|
// if (service_uuids_whitelist == mp_const_none) {
|
|
// // List of service UUID's not given, so discover all available services.
|
|
|
|
// uint16_t next_service_start_handle = BLE_GATT_HANDLE_START;
|
|
|
|
// while (discover_next_services(self, next_service_start_handle, MP_OBJ_NULL)) {
|
|
// // discover_next_services() appends to remote_services_list.
|
|
|
|
// // Get the most recently discovered service, and then ask for services
|
|
// // whose handles start after the last attribute handle inside that service.
|
|
// // There must be at least one if discover_next_services() returned true.
|
|
// const bleio_service_obj_t *service =
|
|
// self->remote_service_list->items[self->remote_service_list->len - 1];
|
|
// next_service_start_handle = service->end_handle + 1;
|
|
// }
|
|
// } else {
|
|
// mp_obj_iter_buf_t iter_buf;
|
|
// mp_obj_t iterable = mp_getiter(service_uuids_whitelist, &iter_buf);
|
|
// mp_obj_t uuid_obj;
|
|
// while ((uuid_obj = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
|
|
// if (!mp_obj_is_type(uuid_obj, &bleio_uuid_type)) {
|
|
// mp_raise_TypeError(translate("non-UUID found in service_uuids_whitelist"));
|
|
// }
|
|
// bleio_uuid_obj_t *uuid = MP_OBJ_TO_PTR(uuid_obj);
|
|
|
|
// ble_uuid_t nrf_uuid;
|
|
// bleio_uuid_convert_to_nrf_ble_uuid(uuid, &nrf_uuid);
|
|
|
|
// // Service might or might not be discovered; that's ok. Caller has to check
|
|
// // Central.remote_services to find out.
|
|
// // We only need to call this once for each service to discover.
|
|
// discover_next_services(self, BLE_GATT_HANDLE_START, &nrf_uuid);
|
|
// }
|
|
// }
|
|
|
|
|
|
// for (size_t i = 0; i < self->remote_service_list->len; i++) {
|
|
// bleio_service_obj_t *service = MP_OBJ_TO_PTR(self->remote_service_list->items[i]);
|
|
// // Skip the service if it had an unknown (unregistered) UUID.
|
|
// if (service->uuid == NULL) {
|
|
// continue;
|
|
// }
|
|
|
|
// uint16_t next_char_start_handle = service->start_handle;
|
|
|
|
// // Stop when we go past the end of the range of handles for this service or
|
|
// // discovery call returns nothing.
|
|
// // discover_next_characteristics() appends to the characteristic_list.
|
|
// while (next_char_start_handle <= service->end_handle &&
|
|
// discover_next_characteristics(self, service, next_char_start_handle)) {
|
|
|
|
|
|
// // Get the most recently discovered characteristic, and then ask for characteristics
|
|
// // whose handles start after the last attribute handle inside that characteristic.
|
|
// const bleio_characteristic_obj_t *characteristic =
|
|
// MP_OBJ_TO_PTR(service->characteristic_list->items[service->characteristic_list->len - 1]);
|
|
|
|
// next_char_start_handle = characteristic->handle + 1;
|
|
// }
|
|
|
|
// // Got characteristics for this service. Now discover descriptors for each characteristic.
|
|
// size_t char_list_len = service->characteristic_list->len;
|
|
// for (size_t char_idx = 0; char_idx < char_list_len; ++char_idx) {
|
|
// bleio_characteristic_obj_t *characteristic =
|
|
// MP_OBJ_TO_PTR(service->characteristic_list->items[char_idx]);
|
|
// const bool last_characteristic = char_idx == char_list_len - 1;
|
|
// bleio_characteristic_obj_t *next_characteristic = last_characteristic
|
|
// ? NULL
|
|
// : MP_OBJ_TO_PTR(service->characteristic_list->items[char_idx + 1]);
|
|
|
|
// // Skip the characteristic if it had an unknown (unregistered) UUID.
|
|
// if (characteristic->uuid == NULL) {
|
|
// continue;
|
|
// }
|
|
|
|
// uint16_t next_desc_start_handle = characteristic->handle + 1;
|
|
|
|
// // Don't run past the end of this service or the beginning of the next characteristic.
|
|
// uint16_t next_desc_end_handle = next_characteristic == NULL
|
|
// ? service->end_handle
|
|
// : next_characteristic->handle - 1;
|
|
|
|
// // Stop when we go past the end of the range of handles for this service or
|
|
// // discovery call returns nothing.
|
|
// // discover_next_descriptors() appends to the descriptor_linked_list.
|
|
// while (next_desc_start_handle <= service->end_handle &&
|
|
// next_desc_start_handle <= next_desc_end_handle &&
|
|
// discover_next_descriptors(self, characteristic,
|
|
// next_desc_start_handle, next_desc_end_handle)) {
|
|
// // Get the most recently discovered descriptor, and then ask for descriptors
|
|
// // whose handles start after that descriptor's handle.
|
|
// // There must be at least one if discover_next_descriptors() returned true.
|
|
// const bleio_descriptor_obj_t *descriptor =
|
|
// characteristic->descriptor_list->items[characteristic->descriptor_list->len - 1];
|
|
// next_desc_start_handle = descriptor->handle + 1;
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
// // This event handler is no longer needed.
|
|
// ble_drv_remove_event_handler(discovery_on_ble_evt, self);
|
|
|
|
// }
|
|
|
|
mp_obj_tuple_t *common_hal_bleio_connection_discover_remote_services(bleio_connection_obj_t *self, mp_obj_t service_uuids_whitelist) {
|
|
// FIX discover_remote_services(self->connection, service_uuids_whitelist);
|
|
bleio_connection_ensure_connected(self);
|
|
// Convert to a tuple and then clear the list so the callee will take ownership.
|
|
mp_obj_tuple_t *services_tuple =
|
|
mp_obj_new_tuple(self->connection->remote_service_list->len,
|
|
self->connection->remote_service_list->items);
|
|
mp_obj_list_clear(MP_OBJ_FROM_PTR(self->connection->remote_service_list));
|
|
return services_tuple;
|
|
}
|
|
|
|
uint16_t bleio_connection_get_conn_handle(bleio_connection_obj_t *self) {
|
|
if (self == NULL || self->connection == NULL) {
|
|
return BLE_CONN_HANDLE_INVALID;
|
|
}
|
|
return self->connection->conn_handle;
|
|
}
|
|
|
|
mp_obj_t bleio_connection_new_from_internal(bleio_connection_internal_t *internal) {
|
|
if (internal->connection_obj != mp_const_none) {
|
|
return internal->connection_obj;
|
|
}
|
|
bleio_connection_obj_t *connection = m_new_obj(bleio_connection_obj_t);
|
|
connection->base.type = &bleio_connection_type;
|
|
connection->connection = internal;
|
|
internal->connection_obj = connection;
|
|
|
|
return MP_OBJ_FROM_PTR(connection);
|
|
}
|
|
|
|
// Find the connection that uses the given conn_handle. Return NULL if not found.
|
|
bleio_connection_internal_t *bleio_conn_handle_to_connection(uint16_t conn_handle) {
|
|
bleio_connection_internal_t *connection;
|
|
for (size_t i = 0; i < BLEIO_TOTAL_CONNECTION_COUNT; i++) {
|
|
connection = &bleio_connections[i];
|
|
if (connection->conn_handle == conn_handle) {
|
|
return connection;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|