189 lines
5.9 KiB
C
189 lines
5.9 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2016 Glenn Ruben Bakke
|
|
*
|
|
* 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 <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "py/nlr.h"
|
|
#include "py/runtime.h"
|
|
#include "py/mphal.h"
|
|
#include "timer.h"
|
|
#include "hal_timer.h"
|
|
|
|
#if MICROPY_PY_MACHINE_TIMER
|
|
|
|
typedef struct _machine_timer_obj_t {
|
|
mp_obj_base_t base;
|
|
hal_timer_conf_t * p_config;
|
|
mp_obj_t callback;
|
|
mp_int_t period;
|
|
mp_int_t mode;
|
|
} machine_timer_obj_t;
|
|
|
|
static hal_timer_conf_t timer_config0 = {.id = 0};
|
|
static hal_timer_conf_t timer_config1 = {.id = 1};
|
|
static hal_timer_conf_t timer_config2 = {.id = 2};
|
|
|
|
#if NRF52
|
|
static hal_timer_conf_t timer_config3 = {.id = 3};
|
|
static hal_timer_conf_t timer_config4 = {.id = 4};
|
|
#endif
|
|
|
|
STATIC machine_timer_obj_t machine_timer_obj[] = {
|
|
{{&machine_timer_type}, &timer_config0},
|
|
{{&machine_timer_type}, &timer_config1},
|
|
{{&machine_timer_type}, &timer_config2},
|
|
#if NRF52
|
|
{{&machine_timer_type}, &timer_config3},
|
|
{{&machine_timer_type}, &timer_config4},
|
|
#endif
|
|
};
|
|
|
|
STATIC void hal_interrupt_handle(uint8_t id) {
|
|
machine_timer_obj_t * self = &machine_timer_obj[id];
|
|
|
|
mp_call_function_1(self->callback, self);
|
|
|
|
if (self != NULL) {
|
|
hal_timer_stop(id);
|
|
if (self->mode == 1) {
|
|
hal_timer_start(id);
|
|
}
|
|
}
|
|
}
|
|
|
|
void timer_init0(void) {
|
|
hal_timer_callback_set(hal_interrupt_handle);
|
|
}
|
|
|
|
STATIC int timer_find(mp_obj_t id) {
|
|
// given an integer id
|
|
int timer_id = mp_obj_get_int(id);
|
|
if (timer_id >= 0 && timer_id < MP_ARRAY_SIZE(machine_timer_obj)
|
|
&& machine_timer_obj[timer_id].p_config != NULL) {
|
|
return timer_id;
|
|
}
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
|
|
"Timer(%d) does not exist", timer_id));
|
|
}
|
|
|
|
STATIC void timer_print(const mp_print_t *print, mp_obj_t o, mp_print_kind_t kind) {
|
|
machine_timer_obj_t *self = o;
|
|
mp_printf(print, "Timer(%u)", self->p_config->id);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* MicroPython bindings for machine API */
|
|
|
|
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 *all_args) {
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_id, MP_ARG_OBJ, {.u_obj = MP_OBJ_NEW_SMALL_INT(-1)} },
|
|
{ MP_QSTR_period, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1000} },
|
|
{ MP_QSTR_mode, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
|
|
{ MP_QSTR_callback, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
|
|
};
|
|
|
|
// parse args
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
// get static peripheral object
|
|
int timer_id = timer_find(args[0].u_obj);
|
|
|
|
#if BLUETOOTH_SD
|
|
if (timer_id == 0) {
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
|
|
"Timer(%d) reserved by Bluetooth LE stack.", timer_id));
|
|
}
|
|
#endif
|
|
|
|
#if MICROPY_PY_MACHINE_SOFT_PWM
|
|
if (timer_id == 1) {
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
|
|
"Timer(%d) reserved by ticker driver.", timer_id));
|
|
}
|
|
#endif
|
|
|
|
machine_timer_obj_t *self = &machine_timer_obj[timer_id];
|
|
|
|
self->p_config->period = args[1].u_int;
|
|
|
|
self->mode = args[2].u_int;
|
|
|
|
if (args[3].u_obj != mp_const_none) {
|
|
self->callback = args[3].u_obj;
|
|
}
|
|
|
|
hal_timer_init(self->p_config);
|
|
|
|
return MP_OBJ_FROM_PTR(self);
|
|
}
|
|
|
|
/// \method start(period)
|
|
/// Start the timer.
|
|
///
|
|
STATIC mp_obj_t machine_timer_start(mp_obj_t self_in) {
|
|
machine_timer_obj_t * self = MP_OBJ_TO_PTR(self_in);
|
|
|
|
hal_timer_start(self->p_config->id);
|
|
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_timer_start_obj, machine_timer_start);
|
|
|
|
/// \method stop()
|
|
/// Stop the timer.
|
|
///
|
|
STATIC mp_obj_t machine_timer_stop(mp_obj_t self_in) {
|
|
machine_timer_obj_t * self = MP_OBJ_TO_PTR(self_in);
|
|
|
|
hal_timer_stop(self->p_config->id);
|
|
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_timer_stop_obj, machine_timer_stop);
|
|
|
|
STATIC const mp_rom_map_elem_t machine_timer_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR_start), MP_ROM_PTR(&machine_timer_start_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_stop), MP_ROM_PTR(&machine_timer_stop_obj) },
|
|
|
|
// constants
|
|
{ MP_ROM_QSTR(MP_QSTR_ONESHOT), MP_ROM_INT(0) },
|
|
{ MP_ROM_QSTR(MP_QSTR_PERIODIC), MP_ROM_INT(1) },
|
|
};
|
|
|
|
STATIC MP_DEFINE_CONST_DICT(machine_timer_locals_dict, machine_timer_locals_dict_table);
|
|
|
|
const mp_obj_type_t machine_timer_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Timer,
|
|
.print = timer_print,
|
|
.make_new = machine_timer_make_new,
|
|
.locals_dict = (mp_obj_dict_t*)&machine_timer_locals_dict
|
|
};
|
|
|
|
#endif // MICROPY_PY_MACHINE_TIMER
|