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fix(storage): Add support for large generic partition BDLs

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Use 64-bit byte offsets and sizes in the generic partition BDL and preserve
64-bit SDMMC addresses until sector conversion.
Return proper ESP-IDF error codes and return output via parameter.
Add large-partition coverage and document the SD/eMMC partition layout.
This commit is contained in:
Adam Múdry
2026-08-07 14:55:19 +02:00
parent 71f4b17960
commit a134e035c4
3 changed files with 95 additions and 44 deletions
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18
components/esp_blockdev_util/include/esp_blockdev/generic_partition.h
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@@ -5,8 +5,8 @@
*/
#pragma once
#include <sys/types.h>
#include <stddef.h>
#include <stdint.h>
#include "esp_blockdev.h"
@@ -26,29 +26,31 @@ extern "C" {
* ESP_ERR_NO_MEM - Failed to allocate the struct
* ESP_OK
*/
esp_err_t esp_blockdev_generic_partition_get(esp_blockdev_handle_t parent, size_t start, size_t size, esp_blockdev_handle_t *out);
esp_err_t esp_blockdev_generic_partition_get(esp_blockdev_handle_t parent, uint64_t start, uint64_t size, esp_blockdev_handle_t *out);
/**
* @brief Translate virtual partition address to parents address space
*
* @param device The device for which to do the translation
* @param address Address to be translated, relative to the partition start
* @param output Where to store the translated parent-space address. Will be unchanged upon failure.
*
* @return Parent-space address on success
* -1 on error (invalid argument or overflow)
* @return ESP_OK on success
* ESP_ERR_INVALID_ARG if an argument is invalid or the address cannot be translated
*/
ssize_t esp_blockdev_generic_partition_translate_address_to_parent(esp_blockdev_handle_t device, size_t address);
esp_err_t esp_blockdev_generic_partition_translate_address_to_parent(esp_blockdev_handle_t device, uint64_t address, uint64_t *output);
/**
* @brief Translate virtual partition address from parents address space
*
* @param device The device for which to do the translation
* @param address Address to be translated, in the parent address space
* @param output Where to store the translated partition-relative address. Will be unchanged upon failure.
*
* @return Partition-relative address on success
* -1 on error (invalid argument or underflow)
* @return ESP_OK on success
* ESP_ERR_INVALID_ARG if an argument is invalid or the address cannot be translated
*/
ssize_t esp_blockdev_generic_partition_translate_address_to_child(esp_blockdev_handle_t device, size_t address);
esp_err_t esp_blockdev_generic_partition_translate_address_to_child(esp_blockdev_handle_t device, uint64_t address, uint64_t *output);
#ifdef __cplusplus
}