1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* 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 "genhdr/mpversion.h"
#include "py/mpconfig.h"
#include "py/objstr.h"
#include "py/objtuple.h"
#ifdef BLUETOOTH_SD
#include "nrf_sdm.h"
#endif
#include "nrf_rng.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, "nrf52");
STATIC const MP_DEFINE_STR_OBJ(os_uname_info_nodename_obj, "nrf52");
STATIC const MP_DEFINE_STR_OBJ(os_uname_info_release_obj, MICROPY_VERSION_STRING);
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_DEFINE_ATTRTUPLE(
os_uname_info_obj,
os_uname_info_fields,
5,
(mp_obj_t)&os_uname_info_sysname_obj,
(mp_obj_t)&os_uname_info_nodename_obj,
(mp_obj_t)&os_uname_info_release_obj,
(mp_obj_t)&os_uname_info_version_obj,
(mp_obj_t)&os_uname_info_machine_obj
);
mp_obj_t common_hal_os_uname(void) {
return (mp_obj_t)&os_uname_info_obj;
}
bool common_hal_os_urandom(uint8_t *buffer, uint32_t length) {
#ifdef BLUETOOTH_SD
uint8_t sd_en = 0;
(void) sd_softdevice_is_enabled(&sd_en);
if (sd_en) {
while (length != 0) {
uint8_t available = 0;
sd_rand_application_bytes_available_get(&available);
if (available) {
uint32_t request = MIN(length, available);
uint32_t result = sd_rand_application_vector_get(buffer, request);
if (result != NRF_SUCCESS) {
return false;
}
buffer += request;
length -= request;
} else {
RUN_BACKGROUND_TASKS;
}
}
return true;
}
#endif
nrf_rng_event_clear(NRF_RNG, NRF_RNG_EVENT_VALRDY);
nrf_rng_task_trigger(NRF_RNG, NRF_RNG_TASK_START);
for (uint32_t i = 0; i < length; i++) {
while (nrf_rng_event_check(NRF_RNG, NRF_RNG_EVENT_VALRDY) == 0);
nrf_rng_event_clear(NRF_RNG, NRF_RNG_EVENT_VALRDY);
buffer[i] = nrf_rng_random_value_get(NRF_RNG);
}
nrf_rng_task_trigger(NRF_RNG, NRF_RNG_TASK_STOP);
return true;
}
|
