179 lines
8.3 KiB
C
Executable File
179 lines
8.3 KiB
C
Executable File
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef _OTA_OPS_H
|
|
#define _OTA_OPS_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include "esp_err.h"
|
|
#include "esp_partition.h"
|
|
#include "esp_spi_flash.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
#define OTA_SIZE_UNKNOWN 0xffffffff /*!< Used for esp_ota_begin() if new image size is unknown */
|
|
|
|
#define ESP_ERR_OTA_BASE 0x1500 /*!< Base error code for ota_ops api */
|
|
#define ESP_ERR_OTA_PARTITION_CONFLICT (ESP_ERR_OTA_BASE + 0x01) /*!< Error if request was to write or erase the current running partition */
|
|
#define ESP_ERR_OTA_SELECT_INFO_INVALID (ESP_ERR_OTA_BASE + 0x02) /*!< Error if OTA data partition contains invalid content */
|
|
#define ESP_ERR_OTA_VALIDATE_FAILED (ESP_ERR_OTA_BASE + 0x03) /*!< Error if OTA app image is invalid */
|
|
|
|
/**
|
|
* @brief Opaque handle for an application OTA update
|
|
*
|
|
* esp_ota_begin() returns a handle which is then used for subsequent
|
|
* calls to esp_ota_write() and esp_ota_end().
|
|
*/
|
|
typedef uint32_t esp_ota_handle_t;
|
|
|
|
/**
|
|
* @brief Commence an OTA update writing to the specified partition.
|
|
|
|
* The specified partition is erased to the specified image size.
|
|
*
|
|
* If image size is not yet known, pass OTA_SIZE_UNKNOWN which will
|
|
* cause the entire partition to be erased.
|
|
*
|
|
* On success, this function allocates memory that remains in use
|
|
* until esp_ota_end() is called with the returned handle.
|
|
*
|
|
* @param partition Pointer to info for partition which will receive the OTA update. Required.
|
|
* @param image_size Size of new OTA app image. Partition will be erased in order to receive this size of image. If 0 or OTA_SIZE_UNKNOWN, the entire partition is erased.
|
|
* @param out_handle On success, returns a handle which should be used for subsequent esp_ota_write() and esp_ota_end() calls.
|
|
|
|
* @return
|
|
* - ESP_OK: OTA operation commenced successfully.
|
|
* - ESP_ERR_INVALID_ARG: partition or out_handle arguments were NULL, or partition doesn't point to an OTA app partition.
|
|
* - ESP_ERR_NO_MEM: Cannot allocate memory for OTA operation.
|
|
* - ESP_ERR_OTA_PARTITION_CONFLICT: Partition holds the currently running firmware, cannot update in place.
|
|
* - ESP_ERR_NOT_FOUND: Partition argument not found in partition table.
|
|
* - ESP_ERR_OTA_SELECT_INFO_INVALID: The OTA data partition contains invalid data.
|
|
* - ESP_ERR_INVALID_SIZE: Partition doesn't fit in configured flash size.
|
|
* - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash write failed.
|
|
*/
|
|
esp_err_t esp_ota_begin(const esp_partition_t* partition, size_t image_size, esp_ota_handle_t* out_handle);
|
|
|
|
/**
|
|
* @brief Write OTA update data to partition
|
|
*
|
|
* This function can be called multiple times as
|
|
* data is received during the OTA operation. Data is written
|
|
* sequentially to the partition.
|
|
*
|
|
* @param handle Handle obtained from esp_ota_begin
|
|
* @param data Data buffer to write
|
|
* @param size Size of data buffer in bytes.
|
|
*
|
|
* @return
|
|
* - ESP_OK: Data was written to flash successfully.
|
|
* - ESP_ERR_INVALID_ARG: handle is invalid.
|
|
* - ESP_ERR_OTA_VALIDATE_FAILED: First byte of image contains invalid app image magic byte.
|
|
* - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash write failed.
|
|
* - ESP_ERR_OTA_SELECT_INFO_INVALID: OTA data partition has invalid contents
|
|
*/
|
|
esp_err_t esp_ota_write(esp_ota_handle_t handle, const void* data, size_t size);
|
|
|
|
/**
|
|
* @brief Finish OTA update and validate newly written app image.
|
|
*
|
|
* @param handle Handle obtained from esp_ota_begin().
|
|
*
|
|
* @note After calling esp_ota_end(), the handle is no longer valid and any memory associated with it is freed (regardless of result).
|
|
*
|
|
* @return
|
|
* - ESP_OK: Newly written OTA app image is valid.
|
|
* - ESP_ERR_NOT_FOUND: OTA handle was not found.
|
|
* - ESP_ERR_INVALID_ARG: Handle was never written to.
|
|
* - ESP_ERR_OTA_VALIDATE_FAILED: OTA image is invalid (either not a valid app image, or - if secure boot is enabled - signature failed to verify.)
|
|
* - ESP_ERR_INVALID_STATE: If flash encryption is enabled, this result indicates an internal error writing the final encrypted bytes to flash.
|
|
*/
|
|
esp_err_t esp_ota_end(esp_ota_handle_t handle);
|
|
|
|
/**
|
|
* @brief Configure OTA data for a new boot partition
|
|
*
|
|
* @note If this function returns ESP_OK, calling esp_restart() will boot the newly configured app partition.
|
|
*
|
|
* @param partition Pointer to info for partition containing app image to boot.
|
|
*
|
|
* @return
|
|
* - ESP_OK: OTA data updated, next reboot will use specified partition.
|
|
* - ESP_ERR_INVALID_ARG: partition argument was NULL or didn't point to a valid OTA partition of type "app".
|
|
* - ESP_ERR_OTA_VALIDATE_FAILED: Partition contained invalid app image. Also returned if secure boot is enabled and signature validation failed.
|
|
* - ESP_ERR_NOT_FOUND: OTA data partition not found.
|
|
* - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash erase or write failed.
|
|
*/
|
|
esp_err_t esp_ota_set_boot_partition(const esp_partition_t* partition);
|
|
|
|
/**
|
|
* @brief Get partition info of currently configured boot app
|
|
*
|
|
* If esp_ota_set_boot_partition() has been called, the partition which was set by that function will be returned.
|
|
*
|
|
* If esp_ota_set_boot_partition() has not been called, the result is usually the same as esp_ota_get_running_partition().
|
|
* The two results are not equal if the configured boot partition does not contain a valid app (meaning that the running partition
|
|
* will be an app that the bootloader chose via fallback).
|
|
*
|
|
* If the OTA data partition is not present or not valid then the result is the first app partition found in the
|
|
* partition table. In priority order, this means: the factory app, the first OTA app slot, or the test app partition.
|
|
*
|
|
* Note that there is no guarantee the returned partition is a valid app. Use esp_image_load(ESP_IMAGE_VERIFY, ...) to verify if the
|
|
* returned partition contains a bootable image.
|
|
*
|
|
* @return Pointer to info for partition structure, or NULL if partition table is invalid or a flash read operation failed. Any returned pointer is valid for the lifetime of the application.
|
|
*/
|
|
const esp_partition_t* esp_ota_get_boot_partition(void);
|
|
|
|
|
|
/**
|
|
* @brief Get partition info of currently running app
|
|
*
|
|
* This function is different to esp_ota_get_boot_partition() in that
|
|
* it ignores any change of selected boot partition caused by
|
|
* esp_ota_set_boot_partition(). Only the app whose code is currently
|
|
* running will have its partition information returned.
|
|
*
|
|
* The partition returned by this function may also differ from esp_ota_get_boot_partition() if the configured boot
|
|
* partition is somehow invalid, and the bootloader fell back to a different app partition at boot.
|
|
*
|
|
* @return Pointer to info for partition structure, or NULL if no partition is found or flash read operation failed. Returned pointer is valid for the lifetime of the application.
|
|
*/
|
|
const esp_partition_t* esp_ota_get_running_partition(void);
|
|
|
|
|
|
/**
|
|
* @brief Return the next OTA app partition which should be written with a new firmware.
|
|
*
|
|
* Call this function to find an OTA app partition which can be passed to esp_ota_begin().
|
|
*
|
|
* Finds next partition round-robin, starting from the current running partition.
|
|
*
|
|
* @param start_from If set, treat this partition info as describing the current running partition. Can be NULL, in which case esp_ota_get_running_partition() is used to find the currently running partition. The result of this function is never the same as this argument.
|
|
*
|
|
* @return Pointer to info for partition which should be updated next. NULL result indicates invalid OTA data partition, or that no eligible OTA app slot partition was found.
|
|
*
|
|
*/
|
|
const esp_partition_t* esp_ota_get_next_update_partition(const esp_partition_t *start_from);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* OTA_OPS_H */
|