1 /*
2  * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 #include "stdio.h"
8 #include "hal/hmac_hal.h"
9 #include "hal/hmac_ll.h"
10 
hmac_hal_start(void)11 void hmac_hal_start(void)
12 {
13     hmac_ll_wait_idle();
14     hmac_ll_start();
15 }
16 
hmac_hal_configure(hmac_hal_output_t config,uint32_t key_id)17 uint32_t hmac_hal_configure(hmac_hal_output_t config, uint32_t key_id)
18 {
19     hmac_ll_wait_idle();
20     hmac_ll_config_output(config);
21     hmac_ll_config_hw_key_id(key_id);
22     hmac_ll_config_finish();
23     hmac_ll_wait_idle();
24 
25     uint32_t conf_error = hmac_ll_config_error();
26     if (conf_error) {
27         hmac_ll_calc_finish();
28         return 1;
29     } else if (config != HMAC_OUTPUT_USER) {
30         // In "downstream" mode, this will be the last hmac operation. Make sure HMAC is ready for
31         // the other peripheral.
32         hmac_ll_wait_idle();
33     }
34 
35     return 0;
36 }
37 
hmac_hal_write_one_block_512(const void * block)38 void hmac_hal_write_one_block_512(const void *block)
39 {
40     hmac_ll_wait_idle();
41     hmac_ll_write_block_512(block);
42     hmac_ll_wait_idle();
43     hmac_ll_msg_one_block();
44 }
45 
hmac_hal_write_block_512(const void * block)46 void hmac_hal_write_block_512(const void *block)
47 {
48     hmac_ll_wait_idle();
49     hmac_ll_write_block_512(block);
50 }
51 
hmac_hal_next_block_padding(void)52 void hmac_hal_next_block_padding(void)
53 {
54     hmac_ll_wait_idle();
55     hmac_ll_msg_padding();
56 }
57 
hmac_hal_next_block_normal(void)58 void hmac_hal_next_block_normal(void)
59 {
60     hmac_ll_wait_idle();
61     hmac_ll_msg_continue();
62 }
63 
hmac_hal_read_result_256(void * result)64 void hmac_hal_read_result_256(void *result)
65 {
66     hmac_ll_wait_idle();
67     hmac_ll_read_result_256(result);
68     hmac_ll_calc_finish();
69 }
70 
hmac_hal_clean(void)71 void hmac_hal_clean(void)
72 {
73     hmac_ll_wait_idle();
74     hmac_ll_clean();
75 }
76