115 lines
4.2 KiB
C
115 lines
4.2 KiB
C
/*
|
|
* This file is part of Adafruit for EFR32 project
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright 2023 Silicon Laboratories Inc. www.silabs.com
|
|
*
|
|
* 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 "py/runtime.h"
|
|
#include "shared-bindings/_bleio/__init__.h"
|
|
#include "shared-bindings/_bleio/Descriptor.h"
|
|
#include "shared-bindings/_bleio/Service.h"
|
|
#include "shared-bindings/_bleio/UUID.h"
|
|
|
|
void common_hal_bleio_descriptor_construct(
|
|
bleio_descriptor_obj_t *self,
|
|
bleio_characteristic_obj_t *characteristic,
|
|
bleio_uuid_obj_t *uuid,
|
|
bleio_attribute_security_mode_t read_perm,
|
|
bleio_attribute_security_mode_t write_perm,
|
|
mp_int_t max_length, bool fixed_length,
|
|
mp_buffer_info_t *initial_value_bufinfo) {
|
|
|
|
const mp_int_t max_length_max = BLE_ATT_ATTR_MAX_LEN;
|
|
self->uuid = uuid;
|
|
self->handle = BLEIO_HANDLE_INVALID;
|
|
self->read_perm = read_perm;
|
|
self->write_perm = write_perm;
|
|
self->initial_value = mp_obj_new_bytes(initial_value_bufinfo->buf,
|
|
initial_value_bufinfo->len);
|
|
|
|
if (max_length < 0 || max_length > max_length_max) {
|
|
mp_raise_ValueError_varg(
|
|
MP_ERROR_TEXT("max_length must be 0-%d when fixed_length is %s"),
|
|
max_length_max, fixed_length ? "True" : "False");
|
|
}
|
|
self->max_length = max_length;
|
|
self->fixed_length = fixed_length;
|
|
}
|
|
|
|
// Get descriptor uuid
|
|
bleio_uuid_obj_t *common_hal_bleio_descriptor_get_uuid(
|
|
bleio_descriptor_obj_t *self) {
|
|
return self->uuid;
|
|
}
|
|
|
|
bleio_characteristic_obj_t *common_hal_bleio_descriptor_get_characteristic(
|
|
bleio_descriptor_obj_t *self) {
|
|
return self->characteristic;
|
|
}
|
|
|
|
size_t common_hal_bleio_descriptor_get_value(bleio_descriptor_obj_t *self,
|
|
uint8_t *buf, size_t len) {
|
|
|
|
uint16_t conn_handle;
|
|
if (self->handle != BLE_GATT_HANDLE_INVALID) {
|
|
conn_handle = bleio_connection_get_conn_handle(
|
|
self->characteristic->service->connection);
|
|
if (common_hal_bleio_service_get_is_remote(
|
|
self->characteristic->service)) {
|
|
|
|
sl_bt_gatt_read_descriptor_value(conn_handle, self->handle);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Set value to descriptor
|
|
void common_hal_bleio_descriptor_set_value(bleio_descriptor_obj_t *self,
|
|
mp_buffer_info_t *bufinfo) {
|
|
|
|
uint16_t conn_handle;
|
|
if (self->handle != BLE_GATT_HANDLE_INVALID) {
|
|
conn_handle = bleio_connection_get_conn_handle(
|
|
self->characteristic->service->connection);
|
|
if (common_hal_bleio_service_get_is_remote(
|
|
self->characteristic->service)) {
|
|
|
|
// false means WRITE_REQ, not write-no-response
|
|
sl_bt_gatt_write_descriptor_value(conn_handle,
|
|
self->handle,
|
|
bufinfo->len,
|
|
bufinfo->buf);
|
|
} else {
|
|
// Validate data length for local descriptors only.
|
|
if (self->fixed_length && bufinfo->len != self->max_length) {
|
|
mp_raise_ValueError(
|
|
MP_ERROR_TEXT("Value length != required fixed length"));
|
|
}
|
|
if (bufinfo->len > self->max_length) {
|
|
mp_raise_ValueError(MP_ERROR_TEXT("Value length > max_length"));
|
|
}
|
|
}
|
|
}
|
|
}
|