150 lines
5.9 KiB
C
150 lines
5.9 KiB
C
/*
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* This file is part of the MicroPython 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) 2020-2021 Damien P. George
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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/runtime.h"
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#if MICROPY_PY_MACHINE_PWM
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#include "extmod/modmachine.h"
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// The port must provide implementations of these low-level PWM functions.
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STATIC void mp_machine_pwm_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind);
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STATIC mp_obj_t mp_machine_pwm_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args);
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STATIC void mp_machine_pwm_init_helper(machine_pwm_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args);
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STATIC void mp_machine_pwm_deinit(machine_pwm_obj_t *self);
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STATIC mp_obj_t mp_machine_pwm_freq_get(machine_pwm_obj_t *self);
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STATIC void mp_machine_pwm_freq_set(machine_pwm_obj_t *self, mp_int_t freq);
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#if MICROPY_PY_MACHINE_PWM_DUTY
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STATIC mp_obj_t mp_machine_pwm_duty_get(machine_pwm_obj_t *self);
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STATIC void mp_machine_pwm_duty_set(machine_pwm_obj_t *self, mp_int_t duty);
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#endif
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STATIC mp_obj_t mp_machine_pwm_duty_get_u16(machine_pwm_obj_t *self);
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STATIC void mp_machine_pwm_duty_set_u16(machine_pwm_obj_t *self, mp_int_t duty_u16);
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STATIC mp_obj_t mp_machine_pwm_duty_get_ns(machine_pwm_obj_t *self);
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STATIC void mp_machine_pwm_duty_set_ns(machine_pwm_obj_t *self, mp_int_t duty_ns);
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// The port provides implementations of the above in this file.
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#include MICROPY_PY_MACHINE_PWM_INCLUDEFILE
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STATIC mp_obj_t machine_pwm_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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mp_machine_pwm_init_helper(args[0], n_args - 1, args + 1, kw_args);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_pwm_init_obj, 1, machine_pwm_init);
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// PWM.deinit()
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STATIC mp_obj_t machine_pwm_deinit(mp_obj_t self_in) {
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machine_pwm_obj_t *self = MP_OBJ_TO_PTR(self_in);
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mp_machine_pwm_deinit(self);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_pwm_deinit_obj, machine_pwm_deinit);
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// PWM.freq([value])
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STATIC mp_obj_t machine_pwm_freq(size_t n_args, const mp_obj_t *args) {
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machine_pwm_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args == 1) {
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// Get frequency.
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return mp_machine_pwm_freq_get(self);
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} else {
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// Set the frequency.
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mp_int_t freq = mp_obj_get_int(args[1]);
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mp_machine_pwm_freq_set(self, freq);
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_pwm_freq_obj, 1, 2, machine_pwm_freq);
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#if MICROPY_PY_MACHINE_PWM_DUTY
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// PWM.duty([duty])
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STATIC mp_obj_t machine_pwm_duty(size_t n_args, const mp_obj_t *args) {
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machine_pwm_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args == 1) {
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// Get duty cycle.
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return mp_machine_pwm_duty_get(self);
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} else {
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// Set duty cycle.
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mp_int_t duty = mp_obj_get_int(args[1]);
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mp_machine_pwm_duty_set(self, duty);
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_pwm_duty_obj, 1, 2, machine_pwm_duty);
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#endif
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// PWM.duty_u16([value])
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STATIC mp_obj_t machine_pwm_duty_u16(size_t n_args, const mp_obj_t *args) {
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machine_pwm_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args == 1) {
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// Get duty cycle.
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return mp_machine_pwm_duty_get_u16(self);
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} else {
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// Set duty cycle.
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mp_int_t duty_u16 = mp_obj_get_int(args[1]);
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mp_machine_pwm_duty_set_u16(self, duty_u16);
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_pwm_duty_u16_obj, 1, 2, machine_pwm_duty_u16);
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// PWM.duty_ns([value])
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STATIC mp_obj_t machine_pwm_duty_ns(size_t n_args, const mp_obj_t *args) {
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machine_pwm_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args == 1) {
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// Get duty cycle.
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return mp_machine_pwm_duty_get_ns(self);
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} else {
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// Set duty cycle.
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mp_int_t duty_ns = mp_obj_get_int(args[1]);
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mp_machine_pwm_duty_set_ns(self, duty_ns);
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return mp_const_none;
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}
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_pwm_duty_ns_obj, 1, 2, machine_pwm_duty_ns);
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STATIC const mp_rom_map_elem_t machine_pwm_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_pwm_init_obj) },
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{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_pwm_deinit_obj) },
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{ MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&machine_pwm_freq_obj) },
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#if MICROPY_PY_MACHINE_PWM_DUTY
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{ MP_ROM_QSTR(MP_QSTR_duty), MP_ROM_PTR(&machine_pwm_duty_obj) },
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#endif
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{ MP_ROM_QSTR(MP_QSTR_duty_u16), MP_ROM_PTR(&machine_pwm_duty_u16_obj) },
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{ MP_ROM_QSTR(MP_QSTR_duty_ns), MP_ROM_PTR(&machine_pwm_duty_ns_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(machine_pwm_locals_dict, machine_pwm_locals_dict_table);
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MP_DEFINE_CONST_OBJ_TYPE(
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machine_pwm_type,
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MP_QSTR_PWM,
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MP_TYPE_FLAG_NONE,
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make_new, mp_machine_pwm_make_new,
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print, mp_machine_pwm_print,
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locals_dict, &machine_pwm_locals_dict
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);
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#endif // MICROPY_PY_MACHINE_PWM
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