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circuitpython/ports/esp8266/common-hal/os/__init__.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Josef Gajdusek
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
*
* 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 <string.h>
#include "esp_mphal.h"
#include "etshal.h"
#include "py/objtuple.h"
#include "py/objstr.h"
#include "extmod/misc.h"
#include "genhdr/mpversion.h"
#include "user_interface.h"
STATIC const qstr os_uname_info_fields[] = {
MP_QSTR_sysname, MP_QSTR_nodename,
MP_QSTR_release, MP_QSTR_version, MP_QSTR_machine
};
STATIC const MP_DEFINE_STR_OBJ(os_uname_info_sysname_obj, MICROPY_PY_SYS_PLATFORM);
STATIC const MP_DEFINE_STR_OBJ(os_uname_info_nodename_obj, MICROPY_PY_SYS_PLATFORM);
STATIC const MP_DEFINE_STR_OBJ(os_uname_info_version_obj, MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE);
STATIC const MP_DEFINE_STR_OBJ(os_uname_info_machine_obj, MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME);
STATIC mp_obj_tuple_t os_uname_info_obj = {
.base = {&mp_type_attrtuple},
.len = 5,
.items = {
(mp_obj_t)&os_uname_info_sysname_obj,
(mp_obj_t)&os_uname_info_nodename_obj,
NULL,
(mp_obj_t)&os_uname_info_version_obj,
(mp_obj_t)&os_uname_info_machine_obj,
(void *)os_uname_info_fields,
}
};
mp_obj_t common_hal_os_uname(void) {
// We must populate the "release" field each time in case it was GC'd since the last call.
const char *ver = system_get_sdk_version();
os_uname_info_obj.items[2] = mp_obj_new_str(ver, strlen(ver));
return (mp_obj_t)&os_uname_info_obj;
}
static uint32_t last_random;
bool common_hal_os_urandom(uint8_t* buffer, uint32_t length) {
uint32_t i = 0;
while (i < length) {
uint32_t new_random = last_random;
while (new_random == last_random) {
new_random = *WDEV_HWRNG;
}
for (int j = 0; j < 4 && i < length; j++) {
buffer[i] = new_random & 0xff;
i++;
new_random >>= 8;
}
}
return true;
}