circuitpython/nrf5/modules/ubluepy/ubluepy_service.c

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Glenn Ruben Bakke
*
* 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/obj.h"
#include "py/runtime.h"
#include "py/objlist.h"
#if MICROPY_PY_UBLUEPY_PERIPHERAL || MICROPY_PY_UBLUEPY_CENTRAL
#include "modubluepy.h"
#include "ble_drv.h"
STATIC void ubluepy_service_print(const mp_print_t *print, mp_obj_t o, mp_print_kind_t kind) {
ubluepy_service_obj_t * self = (ubluepy_service_obj_t *)o;
mp_printf(print, "Service(handle: 0x" HEX2_FMT ")", self->handle);
}
STATIC mp_obj_t ubluepy_service_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
enum { ARG_NEW_UUID, ARG_NEW_TYPE };
static const mp_arg_t allowed_args[] = {
{ ARG_NEW_UUID, MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
{ ARG_NEW_TYPE, MP_ARG_INT, {.u_int = UBLUEPY_SERVICE_PRIMARY} },
};
// parse args
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
ubluepy_service_obj_t *s = m_new_obj(ubluepy_service_obj_t);
s->base.type = type;
mp_obj_t uuid_obj = args[ARG_NEW_UUID].u_obj;
if (uuid_obj == MP_OBJ_NULL) {
return MP_OBJ_FROM_PTR(s);
}
if (MP_OBJ_IS_TYPE(uuid_obj, &ubluepy_uuid_type)) {
s->p_uuid = MP_OBJ_TO_PTR(uuid_obj);
uint8_t type = args[ARG_NEW_TYPE].u_int;
if (type > 0 && type <= UBLUEPY_SERVICE_PRIMARY) {
s->type = type;
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
"Invalid Service type"));
}
(void)ble_drv_service_add(s);
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
"Invalid UUID parameter"));
}
// clear reference to peripheral
s->p_periph = NULL;
s->char_list = mp_obj_new_list(0, NULL);
return MP_OBJ_FROM_PTR(s);
}
/// \method addCharacteristic(Characteristic)
/// Add Characteristic to the Service.
///
STATIC mp_obj_t service_add_characteristic(mp_obj_t self_in, mp_obj_t characteristic) {
ubluepy_service_obj_t * self = MP_OBJ_TO_PTR(self_in);
ubluepy_characteristic_obj_t * p_char = MP_OBJ_TO_PTR(characteristic);
p_char->service_handle = self->handle;
bool retval = ble_drv_characteristic_add(p_char);
if (retval) {
p_char->p_service = self;
}
mp_obj_list_append(self->char_list, characteristic);
// return mp_obj_new_bool(retval);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(ubluepy_service_add_char_obj, service_add_characteristic);
/// \method getCharacteristics()
/// Return list with all characteristics registered in the Service.
///
STATIC mp_obj_t service_get_chars(mp_obj_t self_in) {
ubluepy_service_obj_t * self = MP_OBJ_TO_PTR(self_in);
return self->char_list;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(ubluepy_service_get_chars_obj, service_get_chars);
/// \method getCharacteristic(UUID)
/// Return Characteristic with the given UUID.
///
STATIC mp_obj_t service_get_characteristic(mp_obj_t self_in, mp_obj_t uuid) {
ubluepy_service_obj_t * self = MP_OBJ_TO_PTR(self_in);
ubluepy_uuid_obj_t * p_uuid = MP_OBJ_TO_PTR(uuid);
// validate that there is an UUID object passed in as parameter
if (!(MP_OBJ_IS_TYPE(uuid, &ubluepy_uuid_type))) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
"Invalid UUID parameter"));
}
mp_obj_t * chars = NULL;
mp_uint_t num_chars = 0;
mp_obj_get_array(self->char_list, &num_chars, &chars);
for (uint8_t i = 0; i < num_chars; i++) {
ubluepy_characteristic_obj_t * p_char = (ubluepy_characteristic_obj_t *)chars[i];
bool type_match = p_char->p_uuid->type == p_uuid->type;
bool uuid_match = ((uint16_t)(*(uint16_t *)&p_char->p_uuid->value[0]) ==
(uint16_t)(*(uint16_t *)&p_uuid->value[0]));
if (type_match && uuid_match) {
return MP_OBJ_FROM_PTR(p_char);
}
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(ubluepy_service_get_char_obj, service_get_characteristic);
STATIC const mp_map_elem_t ubluepy_service_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_getCharacteristic), (mp_obj_t)(&ubluepy_service_get_char_obj) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_addCharacteristic), (mp_obj_t)(&ubluepy_service_add_char_obj) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_getCharacteristics), (mp_obj_t)(&ubluepy_service_get_chars_obj) },
#if 0
// Properties
{ MP_OBJ_NEW_QSTR(MP_QSTR_peripheral), (mp_obj_t)(&ubluepy_service_get_peripheral_obj) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_uuid), (mp_obj_t)(&ubluepy_service_get_uuid_obj) },
#endif
{ MP_OBJ_NEW_QSTR(MP_QSTR_PRIMARY), MP_OBJ_NEW_SMALL_INT(UBLUEPY_SERVICE_PRIMARY) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_SECONDARY), MP_OBJ_NEW_SMALL_INT(UBLUEPY_SERVICE_SECONDARY) },
};
STATIC MP_DEFINE_CONST_DICT(ubluepy_service_locals_dict, ubluepy_service_locals_dict_table);
const mp_obj_type_t ubluepy_service_type = {
{ &mp_type_type },
.name = MP_QSTR_Service,
.print = ubluepy_service_print,
.make_new = ubluepy_service_make_new,
.locals_dict = (mp_obj_t)&ubluepy_service_locals_dict
};
#endif // MICROPY_PY_UBLUEPY_PERIPHERAL || MICROPY_PY_UBLUEPY_CENTRAL