597ee5b939
* Updater: Migrating to new manifest path convention * RPC: Added update preparation status to RPC * RPC: bumped protobuf submodule * Bumped protobuf_version.h * FuriCore: add missing include. Lib: make mlib smaller * Explicitly tell where we have doubles and fix random in animations * makefile: added -DLFS_NO_DEBUG * Updater: path len constant dedup * Updater: checking for hardware version match before parsing manifest * LD: moved _DRIVER_CONTEXT sections to .bss, where they belong. * LD: avoiding PROBGITS warning, moved _CONTEXT to data * Updater: Added version check on update package - refusing to install outdated Co-authored-by: あく <alleteam@gmail.com>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#include "furi_hal_random.h"
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#include <furi.h>
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#include <furi_hal.h>
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#include <stm32wbxx_ll_rng.h>
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#include <stm32wbxx_ll_hsem.h>
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#include <hw_conf.h>
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#define TAG "FuriHalRandom"
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uint32_t furi_hal_random_get() {
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while(LL_HSEM_1StepLock(HSEM, CFG_HW_RNG_SEMID))
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;
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LL_RNG_Enable(RNG);
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while(!LL_RNG_IsActiveFlag_DRDY(RNG))
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;
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if((LL_RNG_IsActiveFlag_CECS(RNG)) || (LL_RNG_IsActiveFlag_SECS(RNG))) {
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furi_crash("TRNG error");
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}
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uint32_t random_val = LL_RNG_ReadRandData32(RNG);
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LL_RNG_Disable(RNG);
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LL_HSEM_ReleaseLock(HSEM, CFG_HW_RNG_SEMID, 0);
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return random_val;
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}
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void furi_hal_random_fill_buf(uint8_t* buf, uint32_t len) {
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while(LL_HSEM_1StepLock(HSEM, CFG_HW_RNG_SEMID))
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;
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LL_RNG_Enable(RNG);
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for(uint32_t i = 0; i < len; i += 4) {
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while(!LL_RNG_IsActiveFlag_DRDY(RNG))
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;
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if((LL_RNG_IsActiveFlag_CECS(RNG)) || (LL_RNG_IsActiveFlag_SECS(RNG))) {
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furi_crash("TRNG error");
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}
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uint32_t random_val = LL_RNG_ReadRandData32(RNG);
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uint8_t len_cur = ((i + 4) < len) ? (4) : (len - i);
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memcpy(&buf[i], &random_val, len_cur);
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}
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LL_RNG_Disable(RNG);
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LL_HSEM_ReleaseLock(HSEM, CFG_HW_RNG_SEMID, 0);
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}
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void srand(unsigned seed) {
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UNUSED(seed);
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}
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int rand() {
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return (furi_hal_random_get() & RAND_MAX);
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}
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long random() {
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return (furi_hal_random_get() & RAND_MAX);
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}
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