mirror of
https://github.com/espressif/esp-idf.git
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4dd88329c1
The following files have been ported: * esp_rom_crc.h * esp_rom_sys.h * esp_rom_efuse.h (mostly no-ops) * esp_rom_md5.h Integrated Linux-based rom implementation into log and NVS component. Added brief host tests for ROM to ensure basic consistency on Linux. Added ROM printf host unit tests. Temporarily added reset reason for Linux in ROM.
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
// Copyright 2021 Espressif Systems (Shanghai) CO 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_rom_efuse.h"
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static uint8_t esp_crc8(uint8_t const * p, uint32_t len)
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{
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unsigned char i = 0;
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unsigned char crc = 0;
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while (len--) {
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crc = crc ^ (*p++);
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for (i = 0; i < 8; i++) {
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if ((crc) & 0x01) {
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crc = (crc >> 1) ^ (0x8c) ;
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} else {
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crc = crc >> 1;
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}
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}
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}
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return (crc);
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}
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uint8_t esp_rom_efuse_mac_address_crc8(const uint8_t *data, uint32_t len)
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{
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return esp_crc8(data, len);
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}
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uint32_t esp_rom_efuse_get_flash_gpio_info(void)
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{
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return 0;
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}
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uint32_t esp_rom_efuse_get_flash_wp_gpio(void)
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{
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return 0;
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}
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bool esp_rom_efuse_is_secure_boot_enabled(void)
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{
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return false;
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}
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