129 lines
5.1 KiB
C
129 lines
5.1 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 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 "ble_drv.h"
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#include "ble.h"
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#include "py/runtime.h"
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#include "common-hal/bleio/__init__.h"
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#include "common-hal/bleio/Characteristic.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/Adapter.h"
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void common_hal_bleio_service_construct(bleio_service_obj_t *self, bleio_uuid_obj_t *uuid, mp_obj_list_t *characteristic_list, bool is_secondary) {
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self->device = mp_const_none;
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self->handle = 0xFFFF;
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self->uuid = uuid;
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self->characteristic_list = characteristic_list;
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self->is_secondary = is_secondary;
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for (size_t characteristic_idx = 0; characteristic_idx < characteristic_list->len; ++characteristic_idx) {
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bleio_characteristic_obj_t *characteristic = MP_OBJ_TO_PTR(characteristic_list->items[characteristic_idx]);
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common_hal_bleio_characteristic_set_service(characteristic, self);
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}
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}
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bleio_uuid_obj_t *common_hal_bleio_service_get_uuid(bleio_service_obj_t *self) {
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return self->uuid;
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}
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mp_obj_list_t *common_hal_bleio_service_get_characteristic_list(bleio_service_obj_t *self) {
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return self->characteristic_list;
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}
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bool common_hal_bleio_service_get_is_secondary(bleio_service_obj_t *self) {
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return self->is_secondary;
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}
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void common_hal_bleio_service_set_device(bleio_service_obj_t *self, mp_obj_t device) {
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self->device = device;
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}
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// Call this after the Service has been added to the Peripheral.
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void common_hal_bleio_service_add_all_characteristics(bleio_service_obj_t *self) {
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// Add all the characteristics.
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const mp_obj_list_t *characteristic_list = MP_OBJ_TO_PTR(self->characteristic_list);
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for (size_t characteristic_idx = 0; characteristic_idx < characteristic_list->len; ++characteristic_idx) {
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bleio_characteristic_obj_t *characteristic = characteristic_list->items[characteristic_idx];
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ble_gatts_char_md_t char_md = {
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.char_props.broadcast = characteristic->props.broadcast,
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.char_props.read = characteristic->props.read,
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.char_props.write_wo_resp = characteristic->props.write_no_response,
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.char_props.write = characteristic->props.write,
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.char_props.notify = characteristic->props.notify,
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.char_props.indicate = characteristic->props.indicate,
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};
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ble_gatts_attr_md_t cccd_md = {
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.vloc = BLE_GATTS_VLOC_STACK,
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};
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if (char_md.char_props.notify || char_md.char_props.indicate) {
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BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
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BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
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char_md.p_cccd_md = &cccd_md;
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}
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ble_uuid_t uuid;
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bleio_uuid_convert_to_nrf_ble_uuid(characteristic->uuid, &uuid);
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ble_gatts_attr_md_t attr_md = {
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.vloc = BLE_GATTS_VLOC_STACK,
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.vlen = 1,
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};
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BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
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BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
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ble_gatts_attr_t attr_char_value = {
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.p_uuid = &uuid,
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.p_attr_md = &attr_md,
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.init_len = sizeof(uint8_t),
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.max_len = GATT_MAX_DATA_LENGTH,
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};
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ble_gatts_char_handles_t handles;
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uint32_t err_code;
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err_code = sd_ble_gatts_characteristic_add(self->handle, &char_md, &attr_char_value, &handles);
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if (err_code != NRF_SUCCESS) {
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mp_raise_OSError_msg_varg(translate("Failed to add characteristic, err 0x%04x"), err_code);
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}
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if (characteristic->handle != BLE_GATT_HANDLE_INVALID) {
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mp_raise_ValueError(translate("Characteristic already in use by another Service."));
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}
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characteristic->user_desc_handle = handles.user_desc_handle;
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characteristic->cccd_handle = handles.cccd_handle;
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characteristic->sccd_handle = handles.sccd_handle;
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characteristic->handle = handles.value_handle;
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}
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}
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