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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Dan Halbert for Adafruit Industries
* Copyright (c) 2018 Artur Pacholec
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_BLE_HCI_COMMON_HAL_CONNECTION_H
#define MICROPY_INCLUDED_BLE_HCI_COMMON_HAL_CONNECTION_H
#include <stdbool.h>
#include "py/obj.h"
#include "py/objlist.h"
#include "common-hal/_bleio/__init__.h"
#include "shared-module/_bleio/Address.h"
#include "common-hal/_bleio/Service.h"
typedef enum {
PAIR_NOT_PAIRED,
PAIR_WAITING,
PAIR_PAIRED,
} pair_status_t;
// We split the Connection object into two so that the internal mechanics can live outside of the
// VM. If it were one object, then we'd risk user code seeing a connection object of theirs be
// reused.
typedef struct {
uint16_t conn_handle;
bool is_central;
// Remote services discovered when this peripheral is acting as a client.
mp_obj_list_t *remote_service_list;
// The advertising data and scan response buffers are held by us, not by the SD, so we must
// maintain them and not change it. If we need to change the contents during advertising,
// there are tricks to get the SD to notice (see DevZone - TBS).
bonding_keys_t bonding_keys;
// EDIV: Encrypted Diversifier: Identifies LTK during legacy pairing.
uint16_t ediv;
volatile pair_status_t pair_status;
uint8_t sec_status; // Internal security status.
mp_obj_t connection_obj;
// REMOVE ble_gap_conn_params_t conn_params;
volatile bool conn_params_updating;
uint16_t mtu;
// Request that CCCD values for this connection be saved, using sys_attr values.
volatile bool do_bond_cccds;
// Request that security key info for this connection be saved.
volatile bool do_bond_keys;
// Time of setting do_bond_ccds: we delay a bit to consolidate multiple CCCD changes
// into one write. Time is currently in ticks_ms.
uint64_t do_bond_cccds_request_time;
// FIX from att.c
uint8_t role;
bt_addr_le_t addr;
} bleio_connection_internal_t;
typedef struct {
mp_obj_base_t base;
bleio_connection_internal_t *connection;
// The HCI disconnect reason.
uint8_t disconnect_reason;
} bleio_connection_obj_t;
uint16_t bleio_connection_get_conn_handle(bleio_connection_obj_t *self);
mp_obj_t bleio_connection_new_from_internal(bleio_connection_internal_t *connection);
bleio_connection_internal_t *bleio_conn_handle_to_connection(uint16_t conn_handle);
void bleio_connection_clear(bleio_connection_internal_t *self);
#endif // MICROPY_INCLUDED_BLE_HCI_COMMON_HAL_CONNECTION_H
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