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bootloader: Fallback if OTA data is invalid

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Make bootloader more robust if either OTA data or some OTA app slots are corrupt.
This commit is contained in:
Angus Gratton
2017-05-18 15:31:19 +10:00
committed by Angus Gratton
parent cd5cc9927b
commit 5eef5e7a5d
7 changed files with 214 additions and 110 deletions
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6
components/app_update/include/esp_ota_ops.h
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@@ -129,6 +129,9 @@ esp_err_t esp_ota_set_boot_partition(const esp_partition_t* partition);
* If esp_ota_set_boot_partition() has not been called, the result is
* equivalent to esp_ota_get_running_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
* partition contains a bootable image.
*
* @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_boot_partition(void);
@@ -142,6 +145,9 @@ const esp_partition_t* esp_ota_get_boot_partition(void);
* 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);