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feat(hmac): use RCC atomic block to enable/reset the HMAC peripheral

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This commit is contained in:
harshal.patil
2023-09-15 16:58:40 +05:30
parent 1c6ff8ce9f
commit 18b93e9564
10 changed files with 181 additions and 10 deletions
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13
components/esp_hw_support/esp_ds.c
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@@ -14,6 +14,7 @@
#include "esp_timer.h"
#include "esp_ds.h"
#include "esp_crypto_lock.h"
#include "esp_private/esp_crypto_lock_internal.h"
#include "esp_hmac.h"
#include "esp_memory_utils.h"
#if CONFIG_IDF_TARGET_ESP32S2
@@ -26,6 +27,7 @@
#include "hal/ds_hal.h"
#include "hal/ds_ll.h"
#include "hal/hmac_hal.h"
#include "hal/hmac_ll.h"
#endif /* !CONFIG_IDF_TARGET_ESP32S2 */
#if CONFIG_IDF_TARGET_ESP32S2
@@ -258,7 +260,11 @@ static void ds_acquire_enable(void)
esp_crypto_mpi_lock_acquire();
#endif
// We also enable SHA and HMAC here. SHA is used by HMAC, HMAC is used by DS.
periph_module_enable(PERIPH_HMAC_MODULE);
HMAC_RCC_ATOMIC() {
hmac_ll_enable_bus_clock(true);
hmac_ll_reset_register();
}
periph_module_enable(PERIPH_SHA_MODULE);
periph_module_enable(PERIPH_DS_MODULE);
@@ -271,7 +277,10 @@ static void ds_disable_release(void)
periph_module_disable(PERIPH_DS_MODULE);
periph_module_disable(PERIPH_SHA_MODULE);
periph_module_disable(PERIPH_HMAC_MODULE);
HMAC_RCC_ATOMIC() {
hmac_ll_enable_bus_clock(false);
}
#if CONFIG_IDF_TARGET_ESP32S3
esp_crypto_mpi_lock_release();