kopia lustrzana https://github.com/espressif/esp-idf
296 wiersze
13 KiB
C
296 wiersze
13 KiB
C
// 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 __ESP_PARTITION_H__
|
|
#define __ESP_PARTITION_H__
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include "esp_err.h"
|
|
#include "esp_spi_flash.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @file esp_partition.h
|
|
* @brief Partition APIs
|
|
*/
|
|
|
|
|
|
/**
|
|
* @brief Partition type
|
|
* @note Keep this enum in sync with PartitionDefinition class gen_esp32part.py
|
|
*/
|
|
typedef enum {
|
|
ESP_PARTITION_TYPE_APP = 0x00, //!< Application partition type
|
|
ESP_PARTITION_TYPE_DATA = 0x01, //!< Data partition type
|
|
} esp_partition_type_t;
|
|
|
|
/**
|
|
* @brief Partition subtype
|
|
* @note Keep this enum in sync with PartitionDefinition class gen_esp32part.py
|
|
*/
|
|
typedef enum {
|
|
ESP_PARTITION_SUBTYPE_APP_FACTORY = 0x00, //!< Factory application partition
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_MIN = 0x10, //!< Base for OTA partition subtypes
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_0 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 0, //!< OTA partition 0
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_1 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 1, //!< OTA partition 1
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_2 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 2, //!< OTA partition 2
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_3 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 3, //!< OTA partition 3
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_4 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 4, //!< OTA partition 4
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_5 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 5, //!< OTA partition 5
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_6 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 6, //!< OTA partition 6
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_7 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 7, //!< OTA partition 7
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_8 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 8, //!< OTA partition 8
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_9 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 9, //!< OTA partition 9
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_10 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 10,//!< OTA partition 10
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_11 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 11,//!< OTA partition 11
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_12 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 12,//!< OTA partition 12
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_13 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 13,//!< OTA partition 13
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_14 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 14,//!< OTA partition 14
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_15 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 15,//!< OTA partition 15
|
|
ESP_PARTITION_SUBTYPE_APP_OTA_MAX = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 16,//!< Max subtype of OTA partition
|
|
ESP_PARTITION_SUBTYPE_APP_TEST = 0x20, //!< Test application partition
|
|
|
|
ESP_PARTITION_SUBTYPE_DATA_OTA = 0x00, //!< OTA selection partition
|
|
ESP_PARTITION_SUBTYPE_DATA_PHY = 0x01, //!< PHY init data partition
|
|
ESP_PARTITION_SUBTYPE_DATA_NVS = 0x02, //!< NVS partition
|
|
ESP_PARTITION_SUBTYPE_DATA_COREDUMP = 0x03, //!< COREDUMP partition
|
|
|
|
ESP_PARTITION_SUBTYPE_DATA_ESPHTTPD = 0x80, //!< ESPHTTPD partition
|
|
ESP_PARTITION_SUBTYPE_DATA_FAT = 0x81, //!< FAT partition
|
|
ESP_PARTITION_SUBTYPE_DATA_SPIFFS = 0x82, //!< SPIFFS partition
|
|
|
|
ESP_PARTITION_SUBTYPE_ANY = 0xff, //!< Used to search for partitions with any subtype
|
|
} esp_partition_subtype_t;
|
|
|
|
/**
|
|
* @brief Convenience macro to get esp_partition_subtype_t value for the i-th OTA partition
|
|
*/
|
|
#define ESP_PARTITION_SUBTYPE_OTA(i) ((esp_partition_subtype_t)(ESP_PARTITION_SUBTYPE_APP_OTA_MIN + ((i) & 0xf)))
|
|
|
|
/**
|
|
* @brief Opaque partition iterator type
|
|
*/
|
|
typedef struct esp_partition_iterator_opaque_* esp_partition_iterator_t;
|
|
|
|
/**
|
|
* @brief partition information structure
|
|
*
|
|
* This is not the format in flash, that format is esp_partition_info_t.
|
|
*
|
|
* However, this is the format used by this API.
|
|
*/
|
|
typedef struct {
|
|
esp_partition_type_t type; /*!< partition type (app/data) */
|
|
esp_partition_subtype_t subtype; /*!< partition subtype */
|
|
uint32_t address; /*!< starting address of the partition in flash */
|
|
uint32_t size; /*!< size of the partition, in bytes */
|
|
char label[17]; /*!< partition label, zero-terminated ASCII string */
|
|
bool encrypted; /*!< flag is set to true if partition is encrypted */
|
|
} esp_partition_t;
|
|
|
|
/**
|
|
* @brief Find partition based on one or more parameters
|
|
*
|
|
* @param type Partition type, one of esp_partition_type_t values
|
|
* @param subtype Partition subtype, one of esp_partition_subtype_t values.
|
|
* To find all partitions of given type, use
|
|
* ESP_PARTITION_SUBTYPE_ANY.
|
|
* @param label (optional) Partition label. Set this value if looking
|
|
* for partition with a specific name. Pass NULL otherwise.
|
|
*
|
|
* @return iterator which can be used to enumerate all the partitions found,
|
|
* or NULL if no partitions were found.
|
|
* Iterator obtained through this function has to be released
|
|
* using esp_partition_iterator_release when not used any more.
|
|
*/
|
|
esp_partition_iterator_t esp_partition_find(esp_partition_type_t type, esp_partition_subtype_t subtype, const char* label);
|
|
|
|
/**
|
|
* @brief Find first partition based on one or more parameters
|
|
*
|
|
* @param type Partition type, one of esp_partition_type_t values
|
|
* @param subtype Partition subtype, one of esp_partition_subtype_t values.
|
|
* To find all partitions of given type, use
|
|
* ESP_PARTITION_SUBTYPE_ANY.
|
|
* @param label (optional) Partition label. Set this value if looking
|
|
* for partition with a specific name. Pass NULL otherwise.
|
|
*
|
|
* @return pointer to esp_partition_t structure, or NULL if no partition is found.
|
|
* This pointer is valid for the lifetime of the application.
|
|
*/
|
|
const esp_partition_t* esp_partition_find_first(esp_partition_type_t type, esp_partition_subtype_t subtype, const char* label);
|
|
|
|
/**
|
|
* @brief Get esp_partition_t structure for given partition
|
|
*
|
|
* @param iterator Iterator obtained using esp_partition_find. Must be non-NULL.
|
|
*
|
|
* @return pointer to esp_partition_t structure. This pointer is valid for the lifetime
|
|
* of the application.
|
|
*/
|
|
const esp_partition_t* esp_partition_get(esp_partition_iterator_t iterator);
|
|
|
|
/**
|
|
* @brief Move partition iterator to the next partition found
|
|
*
|
|
* Any copies of the iterator will be invalid after this call.
|
|
*
|
|
* @param iterator Iterator obtained using esp_partition_find. Must be non-NULL.
|
|
*
|
|
* @return NULL if no partition was found, valid esp_partition_iterator_t otherwise.
|
|
*/
|
|
esp_partition_iterator_t esp_partition_next(esp_partition_iterator_t iterator);
|
|
|
|
/**
|
|
* @brief Release partition iterator
|
|
*
|
|
* @param iterator Iterator obtained using esp_partition_find. Must be non-NULL.
|
|
*
|
|
*/
|
|
void esp_partition_iterator_release(esp_partition_iterator_t iterator);
|
|
|
|
/**
|
|
* @brief Verify partition data
|
|
*
|
|
* Given a pointer to partition data, verify this partition exists in the partition table (all fields match.)
|
|
*
|
|
* This function is also useful to take partition data which may be in a RAM buffer and convert it to a pointer to the
|
|
* permanent partition data stored in flash.
|
|
*
|
|
* Pointers returned from this function can be compared directly to the address of any pointer returned from
|
|
* esp_partition_get(), as a test for equality.
|
|
*
|
|
* @param partition Pointer to partition data to verify. Must be non-NULL. All fields of this structure must match the
|
|
* partition table entry in flash for this function to return a successful match.
|
|
*
|
|
* @return
|
|
* - If partition not found, returns NULL.
|
|
* - If found, returns a pointer to the esp_partition_t structure in flash. This pointer is always valid for the lifetime of the application.
|
|
*/
|
|
const esp_partition_t *esp_partition_verify(const esp_partition_t *partition);
|
|
|
|
/**
|
|
* @brief Read data from the partition
|
|
*
|
|
* @param partition Pointer to partition structure obtained using
|
|
* esp_partition_find_first or esp_partition_get.
|
|
* Must be non-NULL.
|
|
* @param dst Pointer to the buffer where data should be stored.
|
|
* Pointer must be non-NULL and buffer must be at least 'size' bytes long.
|
|
* @param src_offset Address of the data to be read, relative to the
|
|
* beginning of the partition.
|
|
* @param size Size of data to be read, in bytes.
|
|
*
|
|
* @return ESP_OK, if data was read successfully;
|
|
* ESP_ERR_INVALID_ARG, if src_offset exceeds partition size;
|
|
* ESP_ERR_INVALID_SIZE, if read would go out of bounds of the partition;
|
|
* or one of error codes from lower-level flash driver.
|
|
*/
|
|
esp_err_t esp_partition_read(const esp_partition_t* partition,
|
|
size_t src_offset, void* dst, size_t size);
|
|
|
|
/**
|
|
* @brief Write data to the partition
|
|
*
|
|
* Before writing data to flash, corresponding region of flash needs to be erased.
|
|
* This can be done using esp_partition_erase_range function.
|
|
*
|
|
* Partitions marked with an encryption flag will automatically be
|
|
* written via the spi_flash_write_encrypted() function. If writing to
|
|
* an encrypted partition, all write offsets and lengths must be
|
|
* multiples of 16 bytes. See the spi_flash_write_encrypted() function
|
|
* for more details. Unencrypted partitions do not have this
|
|
* restriction.
|
|
*
|
|
* @param partition Pointer to partition structure obtained using
|
|
* esp_partition_find_first or esp_partition_get.
|
|
* Must be non-NULL.
|
|
* @param dst_offset Address where the data should be written, relative to the
|
|
* beginning of the partition.
|
|
* @param src Pointer to the source buffer. Pointer must be non-NULL and
|
|
* buffer must be at least 'size' bytes long.
|
|
* @param size Size of data to be written, in bytes.
|
|
*
|
|
* @note Prior to writing to flash memory, make sure it has been erased with
|
|
* esp_partition_erase_range call.
|
|
*
|
|
* @return ESP_OK, if data was written successfully;
|
|
* ESP_ERR_INVALID_ARG, if dst_offset exceeds partition size;
|
|
* ESP_ERR_INVALID_SIZE, if write would go out of bounds of the partition;
|
|
* or one of error codes from lower-level flash driver.
|
|
*/
|
|
esp_err_t esp_partition_write(const esp_partition_t* partition,
|
|
size_t dst_offset, const void* src, size_t size);
|
|
|
|
/**
|
|
* @brief Erase part of the partition
|
|
*
|
|
* @param partition Pointer to partition structure obtained using
|
|
* esp_partition_find_first or esp_partition_get.
|
|
* Must be non-NULL.
|
|
* @param start_addr Address where erase operation should start. Must be aligned
|
|
* to 4 kilobytes.
|
|
* @param size Size of the range which should be erased, in bytes.
|
|
* Must be divisible by 4 kilobytes.
|
|
*
|
|
* @return ESP_OK, if the range was erased successfully;
|
|
* ESP_ERR_INVALID_ARG, if iterator or dst are NULL;
|
|
* ESP_ERR_INVALID_SIZE, if erase would go out of bounds of the partition;
|
|
* or one of error codes from lower-level flash driver.
|
|
*/
|
|
esp_err_t esp_partition_erase_range(const esp_partition_t* partition,
|
|
uint32_t start_addr, uint32_t size);
|
|
|
|
/**
|
|
* @brief Configure MMU to map partition into data memory
|
|
*
|
|
* Unlike spi_flash_mmap function, which requires a 64kB aligned base address,
|
|
* this function doesn't impose such a requirement.
|
|
* If offset results in a flash address which is not aligned to 64kB boundary,
|
|
* address will be rounded to the lower 64kB boundary, so that mapped region
|
|
* includes requested range.
|
|
* Pointer returned via out_ptr argument will be adjusted to point to the
|
|
* requested offset (not necessarily to the beginning of mmap-ed region).
|
|
*
|
|
* To release mapped memory, pass handle returned via out_handle argument to
|
|
* spi_flash_munmap function.
|
|
*
|
|
* @param partition Pointer to partition structure obtained using
|
|
* esp_partition_find_first or esp_partition_get.
|
|
* Must be non-NULL.
|
|
* @param offset Offset from the beginning of partition where mapping should start.
|
|
* @param size Size of the area to be mapped.
|
|
* @param memory Memory space where the region should be mapped
|
|
* @param out_ptr Output, pointer to the mapped memory region
|
|
* @param out_handle Output, handle which should be used for spi_flash_munmap call
|
|
*
|
|
* @return ESP_OK, if successful
|
|
*/
|
|
esp_err_t esp_partition_mmap(const esp_partition_t* partition, uint32_t offset, uint32_t size,
|
|
spi_flash_mmap_memory_t memory,
|
|
const void** out_ptr, spi_flash_mmap_handle_t* out_handle);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* __ESP_PARTITION_H__ */
|