kopia lustrzana https://github.com/espressif/esp-idf
67 wiersze
1.3 KiB
C
67 wiersze
1.3 KiB
C
#include "esp_crypto.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/semphr.h"
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static SemaphoreHandle_t esp_crypto_mutex[MUTEX_MAX_NUM];
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static int esp_crypto_sig[MUTEX_MAX_NUM];
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#if 0
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#define ESP_DEBUG ets_printf
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#else
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#define ESP_DEBUG(...)
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#endif
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int esp_crypto_init(void)
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{
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int i;
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for (i = 0; i < MUTEX_MAX_NUM; i++) {
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esp_crypto_mutex[i] = xSemaphoreCreateMutex();
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ESP_DEBUG("init num %d mutex %p\n", i, esp_crypto_mutex[i]);
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if (!esp_crypto_mutex[i]) {
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goto failed1;
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}
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esp_crypto_sig[i] = 0;
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}
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return 0;
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failed1:
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ESP_DEBUG("esp_crypto_init failed\n");
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for (i--; i >= 0; i--) {
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vQueueDelete(esp_crypto_mutex[i]);
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}
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return -1;
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}
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void esp_crypto_lock(unsigned int num)
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{
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ESP_DEBUG("1num %d, mutex %p\n", num, esp_crypto_mutex[num]);
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xSemaphoreTake(esp_crypto_mutex[num], portMAX_DELAY);
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}
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void esp_crypto_unlock(unsigned int num)
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{
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ESP_DEBUG("2num %d, mutex %p\n", num, esp_crypto_mutex[num]);
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xSemaphoreGive(esp_crypto_mutex[num]);
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}
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void esp_crypto_take(unsigned int num)
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{
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esp_crypto_sig[num]++;
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}
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void esp_crypto_give(unsigned int num)
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{
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if (esp_crypto_sig[num]) {
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esp_crypto_sig[num]--;
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}
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}
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bool esp_crypto_is_used(unsigned int num)
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{
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return (esp_crypto_sig[num] != 0) ? true : false;
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}
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