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Flash encryption: Support enabling flash encryption in bootloader, app support

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* App access functions are all flash encryption-aware
* Documentation for flash encryption
* Partition read/write is flash aware
* New encrypted write function
This commit is contained in:
Angus Gratton
2016-11-11 17:00:34 +11:00
parent bd20288b81
commit 9eb135fd73
36 changed files with 1511 additions and 404 deletions
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26
components/spi_flash/include/esp_spi_flash.h
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@@ -16,6 +16,7 @@
#define ESP_SPI_FLASH_H
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include "esp_err.h"
#include "sdkconfig.h"
@@ -79,14 +80,33 @@ esp_err_t spi_flash_erase_range(size_t start_address, size_t size);
* @note If source address is in DROM, this function will return
* ESP_ERR_INVALID_ARG.
*
* @param dest destination address in Flash
* @param src pointer to the source buffer
* @param size length of data, in bytes
* @param dest destination address in Flash. Must be a multiple of 4 bytes.
* @param src pointer to the source buffer.
* @param size length of data, in bytes. Must be a multiple of 4 bytes.
*
* @return esp_err_t
*/
esp_err_t spi_flash_write(size_t dest, const void *src, size_t size);
/**
* @brief Write data encrypted to Flash.
*
* @note Flash encryption must be enabled for this function to work.
*
* @note Address in flash, dest, has to be 32-byte aligned.
*
* @note If source address is in DROM, this function will return
* ESP_ERR_INVALID_ARG.
*
* @param dest destination address in Flash. Must be a multiple of 32 bytes.
* @param src pointer to the source buffer.
* @param size length of data, in bytes. Must be a multiple of 32 bytes.
*
* @return esp_err_t
*/
esp_err_t spi_flash_write_encrypted(size_t dest, const void *src, size_t size);
/**
* @brief Read data from Flash.
*