micropython/ports/samd/machine_led.c

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/*
* This is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016-2021 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.
*
* Uses pins.h & pins.c to create board (MCU package) specific 'machine_led_obj' array.
*/
#include "py/runtime.h"
#include "py/mphal.h"
#include "extmod/virtpin.h"
#include "modmachine.h"
#include "pins.h"
extern mp_obj_t machine_pin_low_obj;
extern mp_obj_t machine_pin_high_obj;
extern mp_obj_t machine_pin_toggle_obj;
extern mp_obj_t machine_pin_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args);
STATIC void machine_led_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
machine_led_obj_t *self = self_in;
mp_printf(print, "LED(\"%s\")", self->name);
}
// constructor(id, ...)
mp_obj_t mp_led_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
// get the wanted LED object
int wanted_led = pin_find(args[0], (const machine_pin_obj_t *)machine_led_obj, MP_ARRAY_SIZE(machine_led_obj));
const machine_led_obj_t *self = NULL;
if (0 <= wanted_led && wanted_led < MP_ARRAY_SIZE(machine_led_obj)) {
self = (machine_led_obj_t *)&machine_led_obj[wanted_led];
}
// the array could be padded with 'nulls' (see other Ports).
// Will also error if the asked for LED (index) is greater than the array row size.
if (self == NULL || self->base.type == NULL) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid LED"));
}
mp_hal_pin_output(self->id);
mp_hal_pin_low(self->id);
return MP_OBJ_FROM_PTR(self);
}
STATIC const mp_rom_map_elem_t machine_led_locals_dict_table[] = {
// instance methods
{ MP_ROM_QSTR(MP_QSTR_off), MP_ROM_PTR(&machine_pin_low_obj) },
{ MP_ROM_QSTR(MP_QSTR_on), MP_ROM_PTR(&machine_pin_high_obj) },
{ MP_ROM_QSTR(MP_QSTR_toggle), MP_ROM_PTR(&machine_pin_toggle_obj) },
};
STATIC MP_DEFINE_CONST_DICT(machine_led_locals_dict, machine_led_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
machine_led_type,
MP_QSTR_LED,
MP_TYPE_FLAG_NONE,
make_new, mp_led_make_new,
print, machine_led_print,
call, machine_pin_call,
locals_dict, &machine_led_locals_dict
);