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Diffstat (limited to 'extmod/machine_adc.c')
| -rw-r--r-- | extmod/machine_adc.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/extmod/machine_adc.c b/extmod/machine_adc.c new file mode 100644 index 000000000..9849163de --- /dev/null +++ b/extmod/machine_adc.c @@ -0,0 +1,183 @@ +/* + * 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 |