kopia lustrzana https://github.com/espressif/esp-idf
43 wiersze
1.3 KiB
C
43 wiersze
1.3 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "esp_aes_dma_priv.h"
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#include "soc/soc_caps.h"
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#include "soc/crypto_dma_reg.h"
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#include "hal/crypto_dma_ll.h"
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esp_err_t esp_aes_dma_start(const lldesc_t *input, const lldesc_t *output)
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{
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crypto_dma_ll_reset();
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crypto_dma_ll_set_mode(CRYPTO_DMA_AES);
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/* Set descriptors, input to AES comes from outlink DMA and viceversa */
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crypto_dma_ll_outlink_set((uint32_t)input);
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crypto_dma_ll_inlink_set((uint32_t)output);
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/* Start transfer */
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crypto_dma_ll_outlink_start();
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crypto_dma_ll_inlink_start();
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return ESP_OK;
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}
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bool esp_aes_dma_done(const lldesc_t *output)
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{
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return (crypto_dma_ll_inlink_is_eof() && (output->owner == 0));
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}
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