133 lines
5.3 KiB
C
133 lines
5.3 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) 2019 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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#include "py/mphal.h"
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#include "softtimer.h"
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typedef soft_timer_entry_t machine_timer_obj_t;
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const mp_obj_type_t machine_timer_type;
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STATIC void machine_timer_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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machine_timer_obj_t *self = MP_OBJ_TO_PTR(self_in);
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qstr mode = self->mode == SOFT_TIMER_MODE_ONE_SHOT ? MP_QSTR_ONE_SHOT : MP_QSTR_PERIODIC;
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mp_printf(print, "Timer(mode=%q, period=%u)", mode, self->delta_ms);
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}
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STATIC mp_obj_t machine_timer_init_helper(machine_timer_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_mode, ARG_callback, ARG_period, ARG_tick_hz, ARG_freq, };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_mode, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = SOFT_TIMER_MODE_PERIODIC} },
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{ MP_QSTR_callback, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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{ MP_QSTR_period, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0xffffffff} },
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{ MP_QSTR_tick_hz, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1000} },
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{ MP_QSTR_freq, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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};
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// Parse args
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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self->mode = args[ARG_mode].u_int;
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if (args[ARG_freq].u_obj != mp_const_none) {
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// Frequency specified in Hz
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#if MICROPY_PY_BUILTINS_FLOAT
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self->delta_ms = (uint32_t)(MICROPY_FLOAT_CONST(1000.0) / mp_obj_get_float(args[ARG_freq].u_obj));
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#else
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self->delta_ms = 1000 / mp_obj_get_int(args[ARG_freq].u_obj);
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#endif
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} else {
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// Period specified
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self->delta_ms = args[ARG_period].u_int * 1000 / args[ARG_tick_hz].u_int;
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}
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if (self->delta_ms < 1) {
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self->delta_ms = 1;
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}
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self->expiry_ms = mp_hal_ticks_ms() + self->delta_ms;
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self->callback = args[ARG_callback].u_obj;
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soft_timer_insert(self);
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return mp_const_none;
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}
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STATIC mp_obj_t machine_timer_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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machine_timer_obj_t *self = m_new_obj(machine_timer_obj_t);
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self->pairheap.base.type = &machine_timer_type;
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// Get timer id (only soft timer (-1) supported at the moment)
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mp_int_t id = -1;
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if (n_args > 0) {
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id = mp_obj_get_int(args[0]);
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--n_args;
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++args;
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}
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if (id != -1) {
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mp_raise_ValueError(MP_ERROR_TEXT("Timer doesn't exist"));
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}
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if (n_args > 0 || n_kw > 0) {
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// Start the timer
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mp_map_t kw_args;
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mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
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machine_timer_init_helper(self, n_args, args, &kw_args);
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}
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return MP_OBJ_FROM_PTR(self);
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}
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STATIC mp_obj_t machine_timer_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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machine_timer_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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soft_timer_remove(self);
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return machine_timer_init_helper(self, n_args - 1, args + 1, kw_args);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_timer_init_obj, 1, machine_timer_init);
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STATIC mp_obj_t machine_timer_deinit(mp_obj_t self_in) {
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machine_timer_obj_t *self = MP_OBJ_TO_PTR(self_in);
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soft_timer_remove(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_timer_deinit_obj, machine_timer_deinit);
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STATIC const mp_rom_map_elem_t machine_timer_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_timer_init_obj) },
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{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_timer_deinit_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ONE_SHOT), MP_ROM_INT(SOFT_TIMER_MODE_ONE_SHOT) },
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{ MP_ROM_QSTR(MP_QSTR_PERIODIC), MP_ROM_INT(SOFT_TIMER_MODE_PERIODIC) },
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};
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STATIC MP_DEFINE_CONST_DICT(machine_timer_locals_dict, machine_timer_locals_dict_table);
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const mp_obj_type_t machine_timer_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Timer,
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.print = machine_timer_print,
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.make_new = machine_timer_make_new,
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.locals_dict = (mp_obj_dict_t *)&machine_timer_locals_dict,
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};
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