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84 lines
2.0 KiB
C
84 lines
2.0 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 "stdio.h"
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#include "hal/hmac_hal.h"
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#include "hal/hmac_ll.h"
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void hmac_hal_start(void)
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{
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hmac_ll_wait_idle();
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hmac_ll_start();
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}
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uint32_t hmac_hal_configure(hmac_hal_output_t config, uint32_t key_id)
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{
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hmac_ll_wait_idle();
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hmac_ll_config_output(config);
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hmac_ll_config_hw_key_id(key_id);
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hmac_ll_config_finish();
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hmac_ll_wait_idle();
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uint32_t conf_error = hmac_ll_config_error();
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if (conf_error) {
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hmac_ll_calc_finish();
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return 1;
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} else if (config != HMAC_OUTPUT_USER) {
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// In "downstream" mode, this will be the last hmac operation. Make sure HMAC is ready for
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// the other peripheral.
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hmac_ll_wait_idle();
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}
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return 0;
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}
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void hmac_hal_write_one_block_512(const void *block)
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{
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hmac_ll_wait_idle();
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hmac_ll_write_block_512(block);
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hmac_ll_wait_idle();
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hmac_ll_msg_one_block();
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}
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void hmac_hal_write_block_512(const void *block)
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{
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hmac_ll_wait_idle();
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hmac_ll_write_block_512(block);
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}
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void hmac_hal_next_block_padding(void)
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{
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hmac_ll_wait_idle();
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hmac_ll_msg_padding();
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}
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void hmac_hal_next_block_normal(void)
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{
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hmac_ll_wait_idle();
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hmac_ll_msg_continue();
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}
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void hmac_hal_read_result_256(void *result)
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{
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hmac_ll_wait_idle();
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hmac_ll_read_result_256(result);
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hmac_ll_calc_finish();
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}
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void hmac_hal_clean(void)
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{
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hmac_ll_wait_idle();
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hmac_ll_clean();
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}
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