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machine_adc.c
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machine_adc.c
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2023 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 "py/runtime.h"
#if MICROPY_PY_MACHINE_ADC
#include "extmod/modmachine.h"
// The port must provide implementations of these low-level ADC functions.
static void mp_machine_adc_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind);
static mp_obj_t mp_machine_adc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args);
static mp_int_t mp_machine_adc_read_u16(machine_adc_obj_t *self);
#if MICROPY_PY_MACHINE_ADC_INIT
static void mp_machine_adc_init_helper(machine_adc_obj_t *self, size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args);
#endif
#if MICROPY_PY_MACHINE_ADC_DEINIT
static void mp_machine_adc_deinit(machine_adc_obj_t *self);
#endif
#if MICROPY_PY_MACHINE_ADC_BLOCK
static mp_obj_t mp_machine_adc_block(machine_adc_obj_t *self);
#endif
#if MICROPY_PY_MACHINE_ADC_READ_UV
static mp_int_t mp_machine_adc_read_uv(machine_adc_obj_t *self);
#endif
#if MICROPY_PY_MACHINE_ADC_ATTEN_WIDTH
static void mp_machine_adc_atten_set(machine_adc_obj_t *self, mp_int_t atten);
static void mp_machine_adc_width_set(machine_adc_obj_t *self, mp_int_t width);
#endif
#if MICROPY_PY_MACHINE_ADC_READ
static mp_int_t mp_machine_adc_read(machine_adc_obj_t *self);
#endif
// The port provides implementations of the above in this file.
#include MICROPY_PY_MACHINE_ADC_INCLUDEFILE
#if MICROPY_PY_MACHINE_ADC_INIT
// ADC.init(...)
static mp_obj_t machine_adc_init(size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_machine_adc_init_helper(self, n_pos_args - 1, pos_args + 1, kw_args);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_KW(machine_adc_init_obj, 1, machine_adc_init);
#endif
#if MICROPY_PY_MACHINE_ADC_DEINIT
// ADC.deinit()
static mp_obj_t machine_adc_deinit(mp_obj_t self_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_machine_adc_deinit(self);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_deinit_obj, machine_adc_deinit);
#endif
#if MICROPY_PY_MACHINE_ADC_BLOCK
// ADC.block()
static mp_obj_t machine_adc_block(mp_obj_t self_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_machine_adc_block(self);
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_block_obj, machine_adc_block);
#endif
// ADC.read_u16()
static mp_obj_t machine_adc_read_u16(mp_obj_t self_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
return MP_OBJ_NEW_SMALL_INT(mp_machine_adc_read_u16(self));
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_read_u16_obj, machine_adc_read_u16);
#if MICROPY_PY_MACHINE_ADC_READ_UV
// ADC.read_uv()
static mp_obj_t machine_adc_read_uv(mp_obj_t self_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
return MP_OBJ_NEW_SMALL_INT(mp_machine_adc_read_uv(self));
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_read_uv_obj, machine_adc_read_uv);
#endif
#if MICROPY_PY_MACHINE_ADC_ATTEN_WIDTH
// ADC.atten(value) -- this is a legacy method.
static mp_obj_t machine_adc_atten(mp_obj_t self_in, mp_obj_t atten_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_int_t atten = mp_obj_get_int(atten_in);
mp_machine_adc_atten_set(self, atten);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_2(machine_adc_atten_obj, machine_adc_atten);
// ADC.width(value) -- this is a legacy method.
static mp_obj_t machine_adc_width(mp_obj_t self_in, mp_obj_t width_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_int_t width = mp_obj_get_int(width_in);
mp_machine_adc_width_set(self, width);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_2(machine_adc_width_obj, machine_adc_width);
#endif
#if MICROPY_PY_MACHINE_ADC_READ
// ADC.read() -- this is a legacy method.
static mp_obj_t machine_adc_read(mp_obj_t self_in) {
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
return MP_OBJ_NEW_SMALL_INT(mp_machine_adc_read(self));
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_read_obj, machine_adc_read);
#endif
static const mp_rom_map_elem_t machine_adc_locals_dict_table[] = {
#if MICROPY_PY_MACHINE_ADC_INIT
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_adc_init_obj) },
#endif
#if MICROPY_PY_MACHINE_ADC_DEINIT
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_adc_deinit_obj) },
#endif
#if MICROPY_PY_MACHINE_ADC_BLOCK
{ MP_ROM_QSTR(MP_QSTR_block), MP_ROM_PTR(&machine_adc_block_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_read_u16), MP_ROM_PTR(&machine_adc_read_u16_obj) },
#if MICROPY_PY_MACHINE_ADC_READ_UV
{ MP_ROM_QSTR(MP_QSTR_read_uv), MP_ROM_PTR(&machine_adc_read_uv_obj) },
#endif
// Legacy methods.
#if MICROPY_PY_MACHINE_ADC_ATTEN_WIDTH
{ MP_ROM_QSTR(MP_QSTR_atten), MP_ROM_PTR(&machine_adc_atten_obj) },
{ MP_ROM_QSTR(MP_QSTR_width), MP_ROM_PTR(&machine_adc_width_obj) },
#endif
#if MICROPY_PY_MACHINE_ADC_READ
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&machine_adc_read_obj) },
#endif
// A port must add ADC class constants defining the following macro.
// It can be defined to nothing if there are no constants.
MICROPY_PY_MACHINE_ADC_CLASS_CONSTANTS
};
static MP_DEFINE_CONST_DICT(machine_adc_locals_dict, machine_adc_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
machine_adc_type,
MP_QSTR_ADC,
MP_TYPE_FLAG_NONE,
make_new, mp_machine_adc_make_new,
print, mp_machine_adc_print,
locals_dict, &machine_adc_locals_dict
);
#endif // MICROPY_PY_MACHINE_ADC