118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
/*
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* This file is part of the Micro Python 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) 2016 Glenn Ruben Bakke
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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 <stdio.h>
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#include <string.h>
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#include "py/nlr.h"
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "rtc.h"
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#include "hal_rtc.h"
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#if MICROPY_PY_MACHINE_RTC
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typedef struct _machine_rtc_obj_t {
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mp_obj_base_t base;
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RTC_HandleTypeDef *rtc;
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} machine_rtc_obj_t;
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RTC_HandleTypeDef RTCHandle0 = {.instance = NULL, .id = 0};
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RTC_HandleTypeDef RTCHandle1 = {.instance = NULL, .id = 1};
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STATIC const machine_rtc_obj_t machine_rtc_obj[] = {
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{{&machine_rtc_type}, &RTCHandle0},
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{{&machine_rtc_type}, &RTCHandle1},
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};
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void rtc_init0(void) {
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// reset the RTC handles
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memset(&RTCHandle0, 0, sizeof(RTC_HandleTypeDef));
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RTCHandle0.instance = RTC0;
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memset(&RTCHandle1, 0, sizeof(RTC_HandleTypeDef));
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RTCHandle1.instance = RTC1;
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}
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STATIC int rtc_find(mp_obj_t id) {
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// given an integer id
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int rtc_id = mp_obj_get_int(id);
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if (rtc_id >= 0 && rtc_id <= MP_ARRAY_SIZE(machine_rtc_obj)
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&& machine_rtc_obj[rtc_id].rtc != NULL) {
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return rtc_id;
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}
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
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"RTC(%d) does not exist", rtc_id));
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}
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STATIC void rtc_print(const mp_print_t *print, mp_obj_t o, mp_print_kind_t kind) {
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machine_rtc_obj_t *self = o;
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mp_printf(print, "RTC(%u)", self->rtc->id);
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}
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/******************************************************************************/
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/* MicroPython bindings for machine API */
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// for make_new
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enum {
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ARG_NEW_id,
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};
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STATIC mp_obj_t machine_rtc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_id, MP_ARG_OBJ, {.u_obj = MP_OBJ_NEW_SMALL_INT(-1)} },
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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_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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if (args[ARG_NEW_id].u_obj == MP_OBJ_NEW_SMALL_INT(-1)) {
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// index -1 does not exist
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return mp_const_none;
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// TODO: raise exception
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}
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// get static peripheral object
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int rtc_id = rtc_find(args[ARG_NEW_id].u_obj);
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const machine_rtc_obj_t *self = &machine_rtc_obj[rtc_id];
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hal_rtc_init(self->rtc->instance, &self->rtc->init);
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return MP_OBJ_FROM_PTR(self);
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}
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const mp_obj_type_t machine_rtc_type = {
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{ &mp_type_type },
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.name = MP_QSTR_RTC,
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.print = rtc_print,
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.make_new = machine_rtc_make_new,
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#if 0
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.locals_dict = (mp_obj_t)&machine_rtc_locals_dict
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#endif
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};
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#endif // MICROPY_PY_MACHINE_RTC
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