kopia lustrzana https://github.com/espressif/esp-idf
232 wiersze
7.8 KiB
C
232 wiersze
7.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "string.h"
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#include "sdkconfig.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_rom_spiflash.h"
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#include "esp_rom_crc.h"
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#include "esp_rom_gpio.h"
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#include "esp_flash_partitions.h"
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#include "bootloader_flash.h"
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#include "bootloader_common.h"
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#include "soc/gpio_periph.h"
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#include "soc/rtc.h"
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#include "soc/efuse_reg.h"
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#include "soc/chip_revision.h"
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#include "hal/efuse_hal.h"
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#include "hal/gpio_ll.h"
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#include "esp_image_format.h"
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#include "bootloader_sha.h"
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#include "sys/param.h"
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#include "bootloader_flash_priv.h"
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#include "esp_rom_caps.h"
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#define ESP_PARTITION_HASH_LEN 32 /* SHA-256 digest length */
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#define IS_MAX_REV_SET(max_chip_rev_full) (((max_chip_rev_full) != 65535) && ((max_chip_rev_full) != 0))
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static const char* TAG = "boot_comm";
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uint32_t bootloader_common_ota_select_crc(const esp_ota_select_entry_t *s)
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{
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return esp_rom_crc32_le(UINT32_MAX, (uint8_t*)&s->ota_seq, 4);
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}
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bool bootloader_common_ota_select_invalid(const esp_ota_select_entry_t *s)
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{
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return s->ota_seq == UINT32_MAX || s->ota_state == ESP_OTA_IMG_INVALID || s->ota_state == ESP_OTA_IMG_ABORTED;
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}
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bool bootloader_common_ota_select_valid(const esp_ota_select_entry_t *s)
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{
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return bootloader_common_ota_select_invalid(s) == false && s->crc == bootloader_common_ota_select_crc(s);
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}
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int bootloader_common_get_active_otadata(esp_ota_select_entry_t *two_otadata)
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{
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if (two_otadata == NULL) {
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return -1;
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}
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bool valid_two_otadata[2];
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valid_two_otadata[0] = bootloader_common_ota_select_valid(&two_otadata[0]);
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valid_two_otadata[1] = bootloader_common_ota_select_valid(&two_otadata[1]);
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return bootloader_common_select_otadata(two_otadata, valid_two_otadata, true);
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}
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esp_err_t bootloader_common_check_chip_validity(const esp_image_header_t* img_hdr, esp_image_type type)
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{
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esp_err_t err = ESP_OK;
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esp_chip_id_t chip_id = CONFIG_IDF_FIRMWARE_CHIP_ID;
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if (chip_id != img_hdr->chip_id) {
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ESP_LOGE(TAG, "mismatch chip ID, expected %d, found %d", chip_id, img_hdr->chip_id);
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err = ESP_FAIL;
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} else {
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#ifndef CONFIG_IDF_ENV_FPGA
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unsigned revision = efuse_hal_chip_revision();
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unsigned int major_rev = revision / 100;
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unsigned int minor_rev = revision % 100;
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unsigned min_rev = img_hdr->min_chip_rev_full;
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if (type == ESP_IMAGE_BOOTLOADER || type == ESP_IMAGE_APPLICATION) {
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if (!ESP_CHIP_REV_ABOVE(revision, min_rev)) {
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ESP_LOGE(TAG, "Image requires chip rev >= v%d.%d, but chip is v%d.%d",
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min_rev / 100, min_rev % 100,
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major_rev, minor_rev);
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err = ESP_FAIL;
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}
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}
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if (type == ESP_IMAGE_APPLICATION) {
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unsigned max_rev = img_hdr->max_chip_rev_full;
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if ((IS_MAX_REV_SET(max_rev) && (revision > max_rev) && !efuse_hal_get_disable_wafer_version_major())) {
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ESP_LOGE(TAG, "Image requires chip rev <= v%d.%d, but chip is v%d.%d",
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max_rev / 100, max_rev % 100,
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major_rev, minor_rev);
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err = ESP_FAIL;
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}
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}
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#endif // CONFIG_IDF_ENV_FPGA
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}
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return err;
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}
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int bootloader_common_select_otadata(const esp_ota_select_entry_t *two_otadata, bool *valid_two_otadata, bool max)
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{
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if (two_otadata == NULL || valid_two_otadata == NULL) {
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return -1;
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}
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int active_otadata = -1;
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if (valid_two_otadata[0] && valid_two_otadata[1]) {
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uint32_t condition = (max == true) ? MAX(two_otadata[0].ota_seq, two_otadata[1].ota_seq) : MIN(two_otadata[0].ota_seq, two_otadata[1].ota_seq);
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if (condition == two_otadata[0].ota_seq) {
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active_otadata = 0;
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} else {
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active_otadata = 1;
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}
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ESP_LOGD(TAG, "Both OTA copies are valid");
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} else {
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for (int i = 0; i < 2; ++i) {
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if (valid_two_otadata[i]) {
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active_otadata = i;
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ESP_LOGD(TAG, "Only otadata[%d] is valid", i);
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break;
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}
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}
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}
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return active_otadata;
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}
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#if CONFIG_BOOTLOADER_RESERVE_RTC_MEM
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static uint32_t rtc_retain_mem_size(void) {
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#if CONFIG_BOOTLOADER_CUSTOM_RESERVE_RTC && !CONFIG_BOOTLOADER_CUSTOM_RESERVE_RTC_IN_CRC
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/* A custom memory has been reserved by the user, do not consider this memory into CRC calculation as it may change without
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* the have the user updating the CRC. Return the offset of the custom field, which is equivalent to size of the structure
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* minus the size of everything after (including) `custom` */
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return offsetof(rtc_retain_mem_t, custom);
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#else
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return sizeof(rtc_retain_mem_t) - sizeof(bootloader_common_get_rtc_retain_mem()->crc);
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#endif
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}
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static bool is_retain_mem_valid(void)
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{
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rtc_retain_mem_t* rtc_retain_mem = bootloader_common_get_rtc_retain_mem();
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return esp_rom_crc32_le(UINT32_MAX, (uint8_t*)rtc_retain_mem, rtc_retain_mem_size()) == rtc_retain_mem->crc && rtc_retain_mem->crc != UINT32_MAX;
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}
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static void update_rtc_retain_mem_crc(void)
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{
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rtc_retain_mem_t* rtc_retain_mem = bootloader_common_get_rtc_retain_mem();
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rtc_retain_mem->crc = esp_rom_crc32_le(UINT32_MAX, (uint8_t*)rtc_retain_mem, rtc_retain_mem_size());
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}
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NOINLINE_ATTR void bootloader_common_reset_rtc_retain_mem(void)
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{
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hal_memset(bootloader_common_get_rtc_retain_mem(), 0, sizeof(rtc_retain_mem_t));
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}
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uint16_t bootloader_common_get_rtc_retain_mem_reboot_counter(void)
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{
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if (is_retain_mem_valid()) {
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return bootloader_common_get_rtc_retain_mem()->reboot_counter;
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}
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return 0;
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}
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void bootloader_common_set_rtc_retain_mem_factory_reset_state(void)
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{
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if (!is_retain_mem_valid()) {
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bootloader_common_reset_rtc_retain_mem();
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}
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bootloader_common_get_rtc_retain_mem()->flags.factory_reset_state = true;
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update_rtc_retain_mem_crc();
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}
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bool bootloader_common_get_rtc_retain_mem_factory_reset_state(void)
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{
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rtc_retain_mem_t* rtc_retain_mem = bootloader_common_get_rtc_retain_mem();
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if (is_retain_mem_valid()) {
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bool factory_reset_state = rtc_retain_mem->flags.factory_reset_state;
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if (factory_reset_state == true) {
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rtc_retain_mem->flags.factory_reset_state = false;
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update_rtc_retain_mem_crc();
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}
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return factory_reset_state;
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}
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return false;
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}
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esp_partition_pos_t* bootloader_common_get_rtc_retain_mem_partition(void)
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{
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if (is_retain_mem_valid()) {
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return &bootloader_common_get_rtc_retain_mem()->partition;
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}
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return NULL;
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}
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void bootloader_common_update_rtc_retain_mem(esp_partition_pos_t* partition, bool reboot_counter)
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{
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rtc_retain_mem_t* rtc_retain_mem = bootloader_common_get_rtc_retain_mem();
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if (reboot_counter) {
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if (!is_retain_mem_valid()) {
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bootloader_common_reset_rtc_retain_mem();
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}
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if (++rtc_retain_mem->reboot_counter == 0) {
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// do not allow to overflow. Stop it.
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--rtc_retain_mem->reboot_counter;
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}
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}
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if (partition != NULL) {
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rtc_retain_mem->partition.offset = partition->offset;
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rtc_retain_mem->partition.size = partition->size;
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}
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update_rtc_retain_mem_crc();
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}
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rtc_retain_mem_t* bootloader_common_get_rtc_retain_mem(void)
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{
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#ifdef BOOTLOADER_BUILD
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#if ESP_ROM_HAS_LP_ROM
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#define RTC_RETAIN_MEM_ADDR (SOC_RTC_DRAM_LOW)
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#else
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#define RTC_RETAIN_MEM_ADDR (SOC_RTC_DRAM_HIGH - sizeof(rtc_retain_mem_t))
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#endif //ESP_ROM_HAS_LP_ROM
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static rtc_retain_mem_t *const s_bootloader_retain_mem = (rtc_retain_mem_t *)RTC_RETAIN_MEM_ADDR;
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return s_bootloader_retain_mem;
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#else
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static __attribute__((section(".bootloader_data_rtc_mem"))) rtc_retain_mem_t s_bootloader_retain_mem;
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return &s_bootloader_retain_mem;
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#endif // !BOOTLOADER_BUILD
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}
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#endif // CONFIG_BOOTLOADER_RESERVE_RTC_MEM
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