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Improved Arduino Support, ESP32, Due; (+ code review x2)

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This commit is contained in:
gojimmypi
2024-02-01 08:31:00 -08:00
parent f9bf96d9ba
commit ee0e25de5f
19 changed files with 1173 additions and 137 deletions
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wolfcrypt/src/random.c
+67
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@@ -3415,6 +3415,73 @@ int wc_GenerateSeed(OS_Seed* os, byte* output, word32 sz)
return 0;
}
#elif defined(ARDUINO)
int wc_GenerateSeed(OS_Seed* os, byte* output, word32 sz)
{
int ret = 0;
word32 rand;
while (sz > 0) {
word32 len = sizeof(rand);
if (sz < len)
len = sz;
/* Get an Arduino framework random number */
#if defined(__arm__)
/* See: https://github.com/avrxml/asf/tree/master/sam/utils/cmsis/sam3x/include */
#if defined(__SAM3A4C__)
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#elif defined(__SAM3A8C__)
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#elif defined(__SAM3X4C__)
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#elif defined(__SAM3X4E__)
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#elif defined(__SAM3X8C__)
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#elif defined(__SAM3X8E__)
/* This is the Arduino Due */
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#elif defined(__SAM3A8H__)
#ifndef TRNG
#define TRNG (0x400BC000U)
#endif
#else
#ifndef TRNG
#error "Unknown TRNG for this device"
#endif
#endif
srand(analogRead(0));
rand = trng_read_output_data(TRNG);
#elif defined(__STM32__)
/* TODO: confirm this is proper random number on Arduino STM32 */
#warning "Not yet tested on STM32 targets"
rand = random();
#else
/* TODO: Pull requests appreciated for new targets */
#warning "Not yet tested on this target"
rand = random();
#endif
XMEMCPY(output, &rand, len);
output += len;
sz -= len;
}
return ret;
}
#elif defined(WOLFSSL_ESPIDF)
/* Espressif */