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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2026-03-08 19:27:23 +01:00
parent 802a706587
commit 8e6c6c1fcc
34 changed files with 277 additions and 204 deletions
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14
src/rng/hwrng.c
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@@ -18,10 +18,10 @@
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "hwrng.h"
#if defined(PICO_PLATFORM)
#include "pico/stdlib.h"
#include "hwrng.h"
#include "bsp/board.h"
#include "pico/rand.h"
#elif defined(ESP_PLATFORM)
@@ -35,7 +35,7 @@
#include "board.h"
#endif
void hwrng_start() {
static void hwrng_start(void) {
#if defined(ENABLE_EMULATION)
srand(time(0));
#elif defined(ESP_PLATFORM)
@@ -46,13 +46,13 @@ void hwrng_start() {
static uint64_t random_word = 0xcbf29ce484222325;
static uint8_t hwrng_mix_round = 0;
static void hwrng_mix_init() {
static void hwrng_mix_init(void) {
random_word = 0xcbf29ce484222325;
hwrng_mix_round = 0;
}
/* Here, we assume a little endian architecture. */
static int hwrng_mix_process() {
static int hwrng_mix_process(void) {
if (hwrng_mix_round == 0) {
hwrng_mix_init();
}
@@ -119,7 +119,7 @@ static uint32_t hwrng_buf_del(struct hwrng_buf *rb) {
static struct hwrng_buf ring_buffer;
void *hwrng_task() {
void *hwrng_task(void) {
struct hwrng_buf *rb = &ring_buffer;
int n;
@@ -154,7 +154,7 @@ void hwrng_flush(void) {
}
}
uint32_t hwrng_get() {
uint32_t hwrng_get(void) {
struct hwrng_buf *rb = &ring_buffer;
uint32_t v;
@@ -166,7 +166,7 @@ uint32_t hwrng_get() {
return v;
}
void hwrng_wait_full() {
void hwrng_wait_full(void) {
struct hwrng_buf *rb = &ring_buffer;
#ifdef ESP_PLATFORM
uint8_t core = xTaskGetCurrentTaskHandle() == hcore1 ? 1 : 0;

5
src/rng/hwrng.h
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@@ -20,8 +20,9 @@
#include <stdint.h>
void hwrng_init(uint32_t *buf, uint8_t size);
uint32_t hwrng_get();
uint32_t hwrng_get(void);
void hwrng_flush(void);
void hwrng_wait_full();
void hwrng_wait_full(void);
void *hwrng_task(void);
#endif

1
src/rng/random.c
View File

@@ -24,6 +24,7 @@
#include <string.h>
#include "hwrng.h"
#include "random.h"
#define RANDOM_BYTES_LENGTH 32
static uint32_t random_word[RANDOM_BYTES_LENGTH / sizeof(uint32_t)];