212 lines
8.0 KiB
C
212 lines
8.0 KiB
C
/*
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* This file is part of the Micro Python 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) 2017 Glenn Ruben Bakke
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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 "py/obj.h"
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#include "py/runtime.h"
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#if MICROPY_PY_UBLUEPY_PERIPHERAL || MICROPY_PY_UBLUEPY_CENTRAL
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#include "modubluepy.h"
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#include "ble_drv.h"
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STATIC void ubluepy_characteristic_print(const mp_print_t *print, mp_obj_t o, mp_print_kind_t kind) {
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ubluepy_characteristic_obj_t * self = (ubluepy_characteristic_obj_t *)o;
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mp_printf(print, "Characteristic(handle: 0x" HEX2_FMT ", conn_handle: " HEX2_FMT ")",
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self->handle, self->p_service->p_periph->conn_handle);
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}
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STATIC mp_obj_t ubluepy_characteristic_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_uuid, MP_ARG_REQUIRED| MP_ARG_OBJ, {.u_obj = mp_const_none} },
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{ MP_QSTR_props, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = UBLUEPY_PROP_READ | UBLUEPY_PROP_WRITE} },
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{ MP_QSTR_attrs, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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};
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// parse args
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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ubluepy_characteristic_obj_t *s = m_new_obj(ubluepy_characteristic_obj_t);
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s->base.type = type;
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mp_obj_t uuid_obj = args[0].u_obj;
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if (uuid_obj == mp_const_none) {
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return MP_OBJ_FROM_PTR(s);
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}
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if (MP_OBJ_IS_TYPE(uuid_obj, &ubluepy_uuid_type)) {
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s->p_uuid = MP_OBJ_TO_PTR(uuid_obj);
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// (void)sd_characterstic_add(s);
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
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"Invalid UUID parameter"));
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}
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if (args[1].u_int > 0) {
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s->props = (uint8_t)args[1].u_int;
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}
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if (args[2].u_int > 0) {
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s->attrs = (uint8_t)args[2].u_int;
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}
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// clear pointer to service
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s->p_service = NULL;
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// clear pointer to char value data
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s->value_data = NULL;
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return MP_OBJ_FROM_PTR(s);
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}
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void char_data_callback(mp_obj_t self_in, uint16_t length, uint8_t * p_data) {
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ubluepy_characteristic_obj_t * self = MP_OBJ_TO_PTR(self_in);
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self->value_data = mp_obj_new_bytearray(length, p_data);
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}
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/// \method read()
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/// Read Characteristic value.
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///
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STATIC mp_obj_t char_read(mp_obj_t self_in) {
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ubluepy_characteristic_obj_t * self = MP_OBJ_TO_PTR(self_in);
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#if MICROPY_PY_UBLUEPY_CENTRAL
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// TODO: free any previous allocation of value_data
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ble_drv_attr_c_read(self->p_service->p_periph->conn_handle,
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self->handle,
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self_in,
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char_data_callback);
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return self->value_data;
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#else
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(void)self;
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return mp_const_none;
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#endif
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(ubluepy_characteristic_read_obj, char_read);
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/// \method write(data)
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/// Write Characteristic value.
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///
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STATIC mp_obj_t char_write(mp_obj_t self_in, mp_obj_t data) {
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ubluepy_characteristic_obj_t * self = MP_OBJ_TO_PTR(self_in);
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(data, &bufinfo, MP_BUFFER_READ);
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// figure out mode of the Peripheral
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ubluepy_role_type_t role = self->p_service->p_periph->role;
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if (role == UBLUEPY_ROLE_PERIPHERAL) {
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if (self->props & UBLUEPY_PROP_NOTIFY) {
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ble_drv_attr_s_notify(self->p_service->p_periph->conn_handle,
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self->handle,
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bufinfo.len,
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bufinfo.buf);
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} else {
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ble_drv_attr_s_write(self->p_service->p_periph->conn_handle,
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self->handle,
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bufinfo.len,
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bufinfo.buf);
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}
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} else {
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#if MICROPY_PY_UBLUEPY_CENTRAL
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ble_drv_attr_c_write(self->p_service->p_periph->conn_handle,
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self->handle,
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bufinfo.len,
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bufinfo.buf);
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#endif
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(ubluepy_characteristic_write_obj, char_write);
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/// \method properties()
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/// Read Characteristic value properties.
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///
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STATIC mp_obj_t char_properties(mp_obj_t self_in) {
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ubluepy_characteristic_obj_t * self = MP_OBJ_TO_PTR(self_in);
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return MP_OBJ_NEW_SMALL_INT(self->props);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(ubluepy_characteristic_get_properties_obj, char_properties);
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/// \method uuid()
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/// Get UUID instance of the characteristic.
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///
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STATIC mp_obj_t char_uuid(mp_obj_t self_in) {
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ubluepy_characteristic_obj_t * self = MP_OBJ_TO_PTR(self_in);
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return MP_OBJ_FROM_PTR(self->p_uuid);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(ubluepy_characteristic_get_uuid_obj, char_uuid);
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STATIC const mp_rom_map_elem_t ubluepy_characteristic_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&ubluepy_characteristic_read_obj) },
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{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&ubluepy_characteristic_write_obj) },
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#if 0
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{ MP_ROM_QSTR(MP_QSTR_supportsRead), MP_ROM_PTR(&ubluepy_characteristic_supports_read_obj) },
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{ MP_ROM_QSTR(MP_QSTR_propertiesToString), MP_ROM_PTR(&ubluepy_characteristic_properties_to_str_obj) },
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{ MP_ROM_QSTR(MP_QSTR_getHandle), MP_ROM_PTR(&ubluepy_characteristic_get_handle_obj) },
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// Properties
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{ MP_ROM_QSTR(MP_QSTR_peripheral), MP_ROM_PTR(&ubluepy_characteristic_get_peripheral_obj) },
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#endif
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{ MP_ROM_QSTR(MP_QSTR_uuid), MP_ROM_PTR(&ubluepy_characteristic_get_uuid_obj) },
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{ MP_ROM_QSTR(MP_QSTR_properties), MP_ROM_PTR(&ubluepy_characteristic_get_properties_obj) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_BROADCAST), MP_ROM_INT(UBLUEPY_PROP_BROADCAST) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_READ), MP_ROM_INT(UBLUEPY_PROP_READ) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_WRITE_WO_RESP), MP_ROM_INT(UBLUEPY_PROP_WRITE_WO_RESP) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_WRITE), MP_ROM_INT(UBLUEPY_PROP_WRITE) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_NOTIFY), MP_ROM_INT(UBLUEPY_PROP_NOTIFY) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_INDICATE), MP_ROM_INT(UBLUEPY_PROP_INDICATE) },
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{ MP_ROM_QSTR(MP_QSTR_PROP_AUTH_SIGNED_WR), MP_ROM_INT(UBLUEPY_PROP_AUTH_SIGNED_WR) },
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#if MICROPY_PY_UBLUEPY_PERIPHERAL
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{ MP_ROM_QSTR(MP_QSTR_ATTR_CCCD), MP_ROM_INT(UBLUEPY_ATTR_CCCD) },
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#endif
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#if MICROPY_PY_UBLUEPY_CENTRAL
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{ MP_ROM_QSTR(MP_QSTR_PROP_AUTH_SIGNED_WR), MP_ROM_INT(UBLUEPY_ATTR_SCCD) },
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#endif
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};
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STATIC MP_DEFINE_CONST_DICT(ubluepy_characteristic_locals_dict, ubluepy_characteristic_locals_dict_table);
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const mp_obj_type_t ubluepy_characteristic_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Characteristic,
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.print = ubluepy_characteristic_print,
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.make_new = ubluepy_characteristic_make_new,
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.locals_dict = (mp_obj_dict_t*)&ubluepy_characteristic_locals_dict
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};
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#endif // MICROPY_PY_UBLUEPY_PERIPHERAL || MICROPY_PY_UBLUEPY_CENTRAL
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