/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George * * 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 #include #include "shared/runtime/context_manager_helpers.h" #include "py/objproperty.h" #include "py/runtime.h" #include "shared-bindings/microcontroller/Pin.h" #include "shared-bindings/analogio/AnalogOut.h" #include "shared-bindings/util.h" #include "supervisor/shared/translate/translate.h" //| class AnalogOut: //| """Output analog values (a specific voltage). //| //| **Limitations:** Not available on nRF, RP2040, Spresense, as there is no on-chip DAC. //| On Espressif, available only on ESP32 and ESP32-S2; other chips do not have a DAC. //| //| Example usage:: //| //| import analogio //| from board import * //| //| dac = analogio.AnalogOut(A2) # output on pin A2 //| dac.value = 32768 # makes A2 1.65V""" //| //| def __init__(self, pin: microcontroller.Pin) -> None: //| """Use the AnalogOut on the given pin. //| //| :param ~microcontroller.Pin pin: the pin to output to //| //| """ //| ... STATIC mp_obj_t analogio_analogout_make_new(const mp_obj_type_t *type, mp_uint_t n_args, size_t n_kw, const mp_obj_t *args) { // check arguments mp_arg_check_num(n_args, n_kw, 1, 1, false); const mcu_pin_obj_t *pin = validate_obj_is_free_pin(args[0], MP_QSTR_pin); analogio_analogout_obj_t *self = m_new_obj(analogio_analogout_obj_t); self->base.type = &analogio_analogout_type; common_hal_analogio_analogout_construct(self, pin); return MP_OBJ_FROM_PTR(self); } //| def deinit(self) -> None: //| """Turn off the AnalogOut and release the pin for other use.""" //| ... STATIC mp_obj_t analogio_analogout_deinit(mp_obj_t self_in) { analogio_analogout_obj_t *self = self_in; common_hal_analogio_analogout_deinit(self); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(analogio_analogout_deinit_obj, analogio_analogout_deinit); //| def __enter__(self) -> AnalogOut: //| """No-op used by Context Managers.""" //| ... // Provided by context manager helper. //| def __exit__(self) -> None: //| """Automatically deinitializes the hardware when exiting a context. See //| :ref:`lifetime-and-contextmanagers` for more info.""" //| ... STATIC mp_obj_t analogio_analogout___exit__(size_t n_args, const mp_obj_t *args) { (void)n_args; common_hal_analogio_analogout_deinit(args[0]); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(analogio_analogout___exit___obj, 4, 4, analogio_analogout___exit__); //| value: int //| """The value on the analog pin between 0 and 65535 inclusive (16-bit). (write-only) //| //| Even if the underlying digital to analog converter (DAC) is lower //| resolution, the value is 16-bit.""" //| STATIC mp_obj_t analogio_analogout_obj_set_value(mp_obj_t self_in, mp_obj_t value) { analogio_analogout_obj_t *self = MP_OBJ_TO_PTR(self_in); if (common_hal_analogio_analogout_deinited(self)) { raise_deinited_error(); } uint16_t v = mp_arg_validate_int_range(mp_obj_get_int(value), 0, 65535, MP_QSTR_value); common_hal_analogio_analogout_set_value(self, v); return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(analogio_analogout_set_value_obj, analogio_analogout_obj_set_value); MP_PROPERTY_GETSET(analogio_analogout_value_obj, MP_ROM_NONE, (mp_obj_t)&analogio_analogout_set_value_obj); STATIC const mp_rom_map_elem_t analogio_analogout_locals_dict_table[] = { // instance methods { MP_OBJ_NEW_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&analogio_analogout_deinit_obj) }, { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) }, { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&analogio_analogout___exit___obj) }, // Properties { MP_OBJ_NEW_QSTR(MP_QSTR_value), (mp_obj_t)&analogio_analogout_value_obj }, }; STATIC MP_DEFINE_CONST_DICT(analogio_analogout_locals_dict, analogio_analogout_locals_dict_table); const mp_obj_type_t analogio_analogout_type = { { &mp_type_type }, .name = MP_QSTR_AnalogOut, .make_new = analogio_analogout_make_new, .locals_dict = (mp_obj_t)&analogio_analogout_locals_dict, };