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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.
*/
#include "ble_drv.h"
#include "ble.h"
#include "py/runtime.h"
#include "common-hal/_bleio/__init__.h"
#include "shared-bindings/_bleio/Characteristic.h"
#include "shared-bindings/_bleio/Descriptor.h"
#include "shared-bindings/_bleio/Service.h"
#include "shared-bindings/_bleio/Adapter.h"
uint32_t _common_hal_bleio_service_construct(bleio_service_obj_t *self, bleio_uuid_obj_t *uuid, bool is_secondary, mp_obj_list_t *characteristic_list) {
self->handle = 0xFFFF;
self->uuid = uuid;
self->characteristic_list = characteristic_list;
self->is_remote = false;
self->connection = NULL;
self->is_secondary = is_secondary;
ble_uuid_t nordic_uuid;
bleio_uuid_convert_to_nrf_ble_uuid(uuid, &nordic_uuid);
uint8_t service_type = BLE_GATTS_SRVC_TYPE_PRIMARY;
if (is_secondary) {
service_type = BLE_GATTS_SRVC_TYPE_SECONDARY;
}
vm_used_ble = true;
return sd_ble_gatts_service_add(service_type, &nordic_uuid, &self->handle);
}
void common_hal_bleio_service_construct(bleio_service_obj_t *self, bleio_uuid_obj_t *uuid, bool is_secondary) {
check_nrf_error(_common_hal_bleio_service_construct(self, uuid, is_secondary,
mp_obj_new_list(0, NULL)));
}
void bleio_service_from_connection(bleio_service_obj_t *self, mp_obj_t connection) {
self->handle = 0xFFFF;
self->uuid = NULL;
self->characteristic_list = mp_obj_new_list(0, NULL);
self->is_remote = true;
self->is_secondary = false;
self->connection = connection;
}
bleio_uuid_obj_t *common_hal_bleio_service_get_uuid(bleio_service_obj_t *self) {
return self->uuid;
}
mp_obj_tuple_t *common_hal_bleio_service_get_characteristics(bleio_service_obj_t *self) {
return mp_obj_new_tuple(self->characteristic_list->len, self->characteristic_list->items);
}
bool common_hal_bleio_service_get_is_remote(bleio_service_obj_t *self) {
return self->is_remote;
}
bool common_hal_bleio_service_get_is_secondary(bleio_service_obj_t *self) {
return self->is_secondary;
}
void common_hal_bleio_service_add_characteristic(bleio_service_obj_t *self,
bleio_characteristic_obj_t *characteristic,
mp_buffer_info_t *initial_value_bufinfo) {
ble_gatts_char_md_t char_md = {
.char_props.broadcast = (characteristic->props & CHAR_PROP_BROADCAST) ? 1 : 0,
.char_props.read = (characteristic->props & CHAR_PROP_READ) ? 1 : 0,
.char_props.write_wo_resp = (characteristic->props & CHAR_PROP_WRITE_NO_RESPONSE) ? 1 : 0,
.char_props.write = (characteristic->props & CHAR_PROP_WRITE) ? 1 : 0,
.char_props.notify = (characteristic->props & CHAR_PROP_NOTIFY) ? 1 : 0,
.char_props.indicate = (characteristic->props & CHAR_PROP_INDICATE) ? 1 : 0,
};
ble_gatts_attr_md_t cccd_md = {
.vloc = BLE_GATTS_VLOC_STACK,
};
ble_uuid_t char_uuid;
bleio_uuid_convert_to_nrf_ble_uuid(characteristic->uuid, &char_uuid);
ble_gatts_attr_md_t char_attr_md = {
.vloc = BLE_GATTS_VLOC_STACK,
.vlen = !characteristic->fixed_length,
};
if (char_md.char_props.notify || char_md.char_props.indicate) {
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
// Make CCCD write permission match characteristic read permission.
bleio_attribute_gatts_set_security_mode(&cccd_md.write_perm, characteristic->read_perm);
char_md.p_cccd_md = &cccd_md;
}
bleio_attribute_gatts_set_security_mode(&char_attr_md.read_perm, characteristic->read_perm);
bleio_attribute_gatts_set_security_mode(&char_attr_md.write_perm, characteristic->write_perm);
#if CIRCUITPY_VERBOSE_BLE
// Turn on read authorization so that we receive an event to print on every read.
char_attr_md.rd_auth = true;
#endif
mp_buffer_info_t char_value_bufinfo;
mp_get_buffer_raise(characteristic->initial_value, &char_value_bufinfo, MP_BUFFER_READ);
ble_gatts_attr_t char_attr = {
.p_uuid = &char_uuid,
.p_attr_md = &char_attr_md,
.init_len = char_value_bufinfo.len,
.p_value = char_value_bufinfo.buf,
.init_offs = 0,
.max_len = characteristic->max_length,
};
ble_gatts_char_handles_t char_handles;
check_nrf_error(sd_ble_gatts_characteristic_add(self->handle, &char_md, &char_attr, &char_handles));
characteristic->user_desc_handle = char_handles.user_desc_handle;
characteristic->cccd_handle = char_handles.cccd_handle;
characteristic->sccd_handle = char_handles.sccd_handle;
characteristic->handle = char_handles.value_handle;
#if CIRCUITPY_VERBOSE_BLE
mp_printf(&mp_plat_print, "Char handle %x user %x cccd %x sccd %x\n", characteristic->handle, characteristic->user_desc_handle, characteristic->cccd_handle, characteristic->sccd_handle);
#endif
mp_obj_list_append(self->characteristic_list, MP_OBJ_FROM_PTR(characteristic));
}
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