diff options
Diffstat (limited to 'ports/esp32/machine_timer.c')
| -rw-r--r-- | ports/esp32/machine_timer.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/ports/esp32/machine_timer.c b/ports/esp32/machine_timer.c deleted file mode 100644 index 235a502bd..000000000 --- a/ports/esp32/machine_timer.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * This file is part of the MicroPython project, http://micropython.org/ - * - * Development of the code in this file was sponsored by Microbric Pty Ltd - * - * The MIT License (MIT) - * - * Copyright (c) 2013-2015 Damien P. George - * Copyright (c) 2016 Paul Sokolovsky - * - * 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 <stdint.h> -#include <stdio.h> - -#include "driver/timer.h" -#include "py/obj.h" -#include "py/runtime.h" -#include "modmachine.h" - -#define TIMER_INTR_SEL TIMER_INTR_LEVEL -#define TIMER_DIVIDER 40000 -#define TIMER_SCALE (TIMER_BASE_CLK / TIMER_DIVIDER) - -#define TIMER_FLAGS 0 - -typedef struct _machine_timer_obj_t { - mp_obj_base_t base; - mp_uint_t group; - mp_uint_t index; - - mp_uint_t repeat; - mp_uint_t period; - - mp_obj_t callback; - - intr_handle_t handle; -} machine_timer_obj_t; - -const mp_obj_type_t machine_timer_type; - -STATIC esp_err_t check_esp_err(esp_err_t code) { - if (code) { - mp_raise_OSError(code); - } - - return code; -} - -STATIC void machine_timer_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { - machine_timer_obj_t *self = self_in; - - timer_config_t config; - mp_printf(print, "Timer(%p; ", self); - - timer_get_config(self->group, self->index, &config); - - mp_printf(print, "alarm_en=%d, ", config.alarm_en); - mp_printf(print, "auto_reload=%d, ", config.auto_reload); - mp_printf(print, "counter_en=%d)", config.counter_en); -} - -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) { - mp_arg_check_num(n_args, n_kw, 1, 1, false); - machine_timer_obj_t *self = m_new_obj(machine_timer_obj_t); - self->base.type = &machine_timer_type; - - self->group = (mp_obj_get_int(args[0]) >> 1) & 1; - self->index = mp_obj_get_int(args[0]) & 1; - - return self; -} - -STATIC void machine_timer_disable(machine_timer_obj_t *self) { - if (self->handle) { - timer_pause(self->group, self->index); - esp_intr_free(self->handle); - self->handle = NULL; - } -} - -STATIC void machine_timer_isr(void *self_in) { - machine_timer_obj_t *self = self_in; - timg_dev_t *device = self->group ? &(TIMERG1) : &(TIMERG0); - - device->hw_timer[self->index].update = 1; - if (self->index) { - device->int_clr_timers.t1 = 1; - } else { - device->int_clr_timers.t0 = 1; - } - device->hw_timer[self->index].config.alarm_en = self->repeat; - - mp_sched_schedule(self->callback, self); -} - -STATIC void machine_timer_enable(machine_timer_obj_t *self) { - timer_config_t config; - config.alarm_en = TIMER_ALARM_EN; - config.auto_reload = self->repeat; - config.counter_dir = TIMER_COUNT_UP; - config.divider = TIMER_DIVIDER; - config.intr_type = TIMER_INTR_LEVEL; - config.counter_en = TIMER_PAUSE; - - check_esp_err(timer_init(self->group, self->index, &config)); - check_esp_err(timer_set_counter_value(self->group, self->index, 0x00000000)); - check_esp_err(timer_set_alarm_value(self->group, self->index, self->period)); - check_esp_err(timer_enable_intr(self->group, self->index)); - check_esp_err(timer_isr_register(self->group, self->index, machine_timer_isr, (void*)self, TIMER_FLAGS, &self->handle)); - check_esp_err(timer_start(self->group, self->index)); -} - -STATIC mp_obj_t machine_timer_init_helper(machine_timer_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { - static const mp_arg_t allowed_args[] = { - { MP_QSTR_period, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0xffffffff} }, - { 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} }, - }; - - machine_timer_disable(self); - - mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; - mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); - - // Timer uses an 80MHz base clock, which is divided by the divider/scalar, we then convert to ms. - self->period = (args[0].u_int * TIMER_BASE_CLK) / (1000 * TIMER_DIVIDER); - self->repeat = args[1].u_int; - self->callback = args[2].u_obj; - self->handle = NULL; - - machine_timer_enable(self); - - return mp_const_none; -} - -STATIC mp_obj_t machine_timer_deinit(mp_obj_t self_in) { - machine_timer_disable(self_in); - - return mp_const_none; -} -STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_timer_deinit_obj, machine_timer_deinit); - -STATIC mp_obj_t machine_timer_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) { - return machine_timer_init_helper(args[0], n_args - 1, args + 1, kw_args); -} -STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_timer_init_obj, 1, machine_timer_init); - -STATIC mp_obj_t machine_timer_value(mp_obj_t self_in) { - machine_timer_obj_t *self = self_in; - double result; - - timer_get_counter_time_sec(self->group, self->index, &result); - - return MP_OBJ_NEW_SMALL_INT((mp_uint_t)(result * 1000)); // value in ms -} -STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_timer_value_obj, machine_timer_value); - -STATIC const mp_rom_map_elem_t machine_timer_locals_dict_table[] = { - { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&machine_timer_deinit_obj) }, - { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_timer_deinit_obj) }, - { MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_timer_init_obj) }, - { MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&machine_timer_value_obj) }, - { MP_ROM_QSTR(MP_QSTR_ONE_SHOT), MP_ROM_INT(false) }, - { MP_ROM_QSTR(MP_QSTR_PERIODIC), MP_ROM_INT(true) }, -}; -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 = machine_timer_print, - .make_new = machine_timer_make_new, - .locals_dict = (mp_obj_t)&machine_timer_locals_dict, -}; |
