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/*

* This file is part of the MicroPython project, http://micropython.org/

*

* 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 "py/obj.h"

#include "py/runtime.h"

#include "extmod/machine_mem.h"

#include "utils.h"

#include "modpyb.h"

#include "os_type.h"

#include "osapi.h"

#include "etshal.h"

#include "user_interface.h"

#if MICROPY_PY_MACHINE

STATIC mp_obj_t machine_freq(mp_uint_t n_args, const mp_obj_t *args) {

if (n_args == 0) {

// get

return mp_obj_new_int(system_get_cpu_freq() * 1000000);

} else {

// set

mp_int_t freq = mp_obj_get_int(args[0]) / 1000000;

if (freq != 80 && freq != 160) {

nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError,

"frequency can only be either 80Mhz or 160MHz"));

}

system_update_cpu_freq(freq);

return mp_const_none;

}

}

STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_freq_obj, 0, 1, machine_freq);

STATIC mp_obj_t machine_reset(void) {

system_restart();

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_obj, machine_reset);

STATIC mp_obj_t machine_unique_id(void) {

uint32_t id = system_get_chip_id();

return mp_obj_new_bytes((byte*)&id, sizeof(id));

}

STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_unique_id_obj, machine_unique_id);

typedef struct _esp_timer_obj_t {

mp_obj_base_t base;

os_timer_t timer;

mp_obj_t callback;

} esp_timer_obj_t;

const mp_obj_type_t esp_timer_type;

STATIC void esp_timer_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {

esp_timer_obj_t *self = self_in;

mp_printf(print, "Timer(%p)", &self->timer);

}

STATIC mp_obj_t esp_timer_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {

mp_arg_check_num(n_args, n_kw, 1, 1, false);

esp_timer_obj_t *tim = m_new_obj(esp_timer_obj_t);

tim->base.type = &esp_timer_type;

return tim;

}

STATIC void esp_timer_cb(void *arg) {

esp_timer_obj_t *self = arg;

call_function_1_protected(self->callback, self);

}

STATIC mp_obj_t esp_timer_init_helper(esp_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_freq, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },

{ 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} },

};

// parse args

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);

self->callback = args[2].u_obj;

// Be sure to disarm timer before making any changes

os_timer_disarm(&self->timer);

os_timer_setfn(&self->timer, esp_timer_cb, self);

os_timer_arm(&self->timer, args[0].u_int, args[1].u_int);

return mp_const_none;

}

STATIC mp_obj_t esp_timer_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {

return esp_timer_init_helper(args[0], n_args - 1, args + 1, kw_args);

}

STATIC MP_DEFINE_CONST_FUN_OBJ_KW(esp_timer_init_obj, 1, esp_timer_init);

STATIC mp_obj_t esp_timer_deinit(mp_obj_t self_in) {

esp_timer_obj_t *self = self_in;

os_timer_disarm(&self->timer);

return mp_const_none;

}

STATIC MP_DEFINE_CONST_FUN_OBJ_1(esp_timer_deinit_obj, esp_timer_deinit);

STATIC const mp_map_elem_t esp_timer_locals_dict_table[] = {

{ MP_OBJ_NEW_QSTR(MP_QSTR_deinit), (mp_obj_t)&esp_timer_deinit_obj },

{ MP_OBJ_NEW_QSTR(MP_QSTR_init), (mp_obj_t)&esp_timer_init_obj },

// { MP_OBJ_NEW_QSTR(MP_QSTR_callback), (mp_obj_t)&esp_timer_callback_obj },

{ MP_OBJ_NEW_QSTR(MP_QSTR_ONE_SHOT), MP_OBJ_NEW_SMALL_INT(false) },

{ MP_OBJ_NEW_QSTR(MP_QSTR_PERIODIC), MP_OBJ_NEW_SMALL_INT(true) },

};

STATIC MP_DEFINE_CONST_DICT(esp_timer_locals_dict, esp_timer_locals_dict_table);

const mp_obj_type_t esp_timer_type = {

{ &mp_type_type },

.name = MP_QSTR_Timer,

.print = esp_timer_print,

.make_new = esp_timer_make_new,

.locals_dict = (mp_obj_t)&esp_timer_locals_dict,

};

STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {

{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_umachine) },

{ MP_ROM_QSTR(MP_QSTR_mem8), MP_ROM_PTR(&machine_mem8_obj) },

{ MP_ROM_QSTR(MP_QSTR_mem16), MP_ROM_PTR(&machine_mem16_obj) },

{ MP_ROM_QSTR(MP_QSTR_mem32), MP_ROM_PTR(&machine_mem32_obj) },

{ MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&machine_freq_obj) },

{ MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&machine_reset_obj) },

{ MP_ROM_QSTR(MP_QSTR_unique_id), MP_ROM_PTR(&machine_unique_id_obj) },

{ MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&esp_timer_type) },

{ MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&pyb_pin_type) },

{ MP_ROM_QSTR(MP_QSTR_PWM), MP_ROM_PTR(&pyb_pwm_type) },

{ MP_ROM_QSTR(MP_QSTR_ADC), MP_ROM_PTR(&pyb_adc_type) },

{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&pyb_uart_type) },

{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&pyb_i2c_type) },

{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&pyb_spi_type) },

};

STATIC MP_DEFINE_CONST_DICT(machine_module_globals, machine_module_globals_table);

const mp_obj_module_t mp_module_machine = {

.base = { &mp_type_module },

.name = MP_QSTR_umachine,

.globals = (mp_obj_dict_t*)&machine_module_globals,

};

#endif // MICROPY_PY_MACHINE