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me-no-dev
2016-11-13 17:23:44 +02:00
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242
tools/sdk/include/spi_flash/esp_partition.h Normal file
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@ -0,0 +1,242 @@
// 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
typedef enum {
ESP_PARTITION_TYPE_APP = 0x00,
ESP_PARTITION_TYPE_DATA = 0x01,
ESP_PARTITION_TYPE_FILESYSTEM = 0x02,
} esp_partition_type_t;
typedef enum {
ESP_PARTITION_SUBTYPE_APP_FACTORY = 0x00,
ESP_PARTITION_SUBTYPE_APP_OTA_MIN = 0x10,
ESP_PARTITION_SUBTYPE_APP_OTA_0 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 0,
ESP_PARTITION_SUBTYPE_APP_OTA_1 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 1,
ESP_PARTITION_SUBTYPE_APP_OTA_2 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 2,
ESP_PARTITION_SUBTYPE_APP_OTA_3 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 3,
ESP_PARTITION_SUBTYPE_APP_OTA_4 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 4,
ESP_PARTITION_SUBTYPE_APP_OTA_5 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 5,
ESP_PARTITION_SUBTYPE_APP_OTA_6 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 6,
ESP_PARTITION_SUBTYPE_APP_OTA_7 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 7,
ESP_PARTITION_SUBTYPE_APP_OTA_8 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 8,
ESP_PARTITION_SUBTYPE_APP_OTA_9 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 9,
ESP_PARTITION_SUBTYPE_APP_OTA_10 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 10,
ESP_PARTITION_SUBTYPE_APP_OTA_11 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 11,
ESP_PARTITION_SUBTYPE_APP_OTA_12 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 12,
ESP_PARTITION_SUBTYPE_APP_OTA_13 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 13,
ESP_PARTITION_SUBTYPE_APP_OTA_14 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 14,
ESP_PARTITION_SUBTYPE_APP_OTA_15 = ESP_PARTITION_SUBTYPE_APP_OTA_MIN + 15,
ESP_PARTITION_SUBTYPE_APP_OTA_MAX = 15,
ESP_PARTITION_SUBTYPE_APP_TEST = 0x20,
ESP_PARTITION_SUBTYPE_DATA_OTA = 0x00,
ESP_PARTITION_SUBTYPE_DATA_RF = 0x01,
ESP_PARTITION_SUBTYPE_DATA_NVS = 0x02,
ESP_PARTITION_SUBTYPE_FILESYSTEM_ESPHTTPD = 0x00,
ESP_PARTITION_SUBTYPE_FILESYSTEM_FAT = 0x01,
ESP_PARTITION_SUBTYPE_FILESYSTEM_SPIFFS = 0x02,
ESP_PARTITION_SUBTYPE_ANY = 0xff,
} esp_partition_subtype_t;
#define ESP_PARTITION_SUBTYPE_OTA(i) ((esp_partition_subtype_t)(ESP_PARTITION_SUBTYPE_APP_OTA_MIN + ((i) & 0xf)))
typedef struct esp_partition_iterator_opaque_* esp_partition_iterator_t;
typedef struct {
esp_partition_type_t type;
esp_partition_subtype_t subtype;
uint32_t address;
uint32_t size;
char label[17];
bool 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 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.
*
* @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__ */

108
tools/sdk/include/spi_flash/esp_spi_flash.h
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@ -16,6 +16,7 @@
#define ESP_SPI_FLASH_H
#include <stdint.h>
#include <stddef.h>
#include "esp_err.h"
#include "sdkconfig.h"
@ -34,41 +35,126 @@ extern "C" {
*
* This function must be called exactly once, before any other
* spi_flash_* functions are called.
* Currently this function is called from startup code. There is
* no need to call it from application code.
*
*/
void spi_flash_init();
/**
* @brief Get flash chip size, as set in binary image header
*
* @note This value does not necessarily match real flash size.
*
* @return size of flash chip, in bytes
*/
size_t spi_flash_get_chip_size();
/**
* @brief Erase the Flash sector.
*
* @param uint16 sec : Sector number, the count starts at sector 0, 4KB per sector.
* @param sector Sector number, the count starts at sector 0, 4KB per sector.
*
* @return esp_err_t
*/
esp_err_t spi_flash_erase_sector(uint16_t sec);
esp_err_t spi_flash_erase_sector(size_t sector);
/**
* @brief Erase a range of flash sectors
*
* @param uint32_t start_address : Address where erase operation has to start.
* Must be 4kB-aligned
* @param uint32_t size : Size of erased range, in bytes. Must be divisible by 4kB.
*
* @return esp_err_t
*/
esp_err_t spi_flash_erase_range(size_t start_addr, size_t size);
/**
* @brief Write data to Flash.
*
* @param uint32 des_addr : destination address in Flash.
* @param uint32 *src_addr : source address of the data.
* @param uint32 size : length of data
* @note Address in flash, dest, has to be 4-byte aligned.
* This is a temporary limitation which will be removed.
*
* @param dest destination address in Flash
* @param src pointer to the source buffer
* @param size length of data, in bytes
*
* @return esp_err_t
*/
esp_err_t spi_flash_write(uint32_t des_addr, const uint32_t *src_addr, uint32_t size);
esp_err_t spi_flash_write(size_t dest, const void *src, size_t size);
/**
* @brief Read data from Flash.
*
* @param uint32 src_addr : source address of the data in Flash.
* @param uint32 *des_addr : destination address.
* @param uint32 size : length of data
* @note Both src and dest have to be 4-byte aligned.
* This is a temporary limitation which will be removed.
*
* @param src source address of the data in Flash.
* @param dest pointer to the destination buffer
* @param size length of data
*
* @return esp_err_t
*/
esp_err_t spi_flash_read(uint32_t src_addr, uint32_t *des_addr, uint32_t size);
esp_err_t spi_flash_read(size_t src, void *dest, size_t size);
/**
* @brief Enumeration which specifies memory space requested in an mmap call
*/
typedef enum {
SPI_FLASH_MMAP_DATA, /**< map to data memory (Vaddr0), allows byte-aligned access, 4 MB total */
SPI_FLASH_MMAP_INST, /**< map to instruction memory (Vaddr1-3), allows only 4-byte-aligned access, 11 MB total */
} spi_flash_mmap_memory_t;
/**
* @brief Opaque handle for memory region obtained from spi_flash_mmap.
*/
typedef uint32_t spi_flash_mmap_handle_t;
/**
* @brief Map region of flash memory into data or instruction address space
*
* This function allocates sufficient number of 64k MMU pages and configures
* them to map request region of flash memory into data address space or into
* instruction address space. It may reuse MMU pages which already provide
* required mapping. As with any allocator, there is possibility of fragmentation
* of address space if mmap/munmap are heavily used. To troubleshoot issues with
* page allocation, use spi_flash_mmap_dump function.
*
* @param src_addr Physical address in flash where requested region starts.
* This address *must* be aligned to 64kB boundary.
* @param size Size of region which has to be mapped. This size will be rounded
* up to a 64k boundary.
* @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 on success, ESP_ERR_NO_MEM if pages can not be allocated
*/
esp_err_t spi_flash_mmap(uint32_t src_addr, size_t size, spi_flash_mmap_memory_t memory,
const void** out_ptr, spi_flash_mmap_handle_t* out_handle);
/**
* @brief Release region previously obtained using spi_flash_mmap
*
* @note Calling this function will not necessarily unmap memory region.
* Region will only be unmapped when there are no other handles which
* reference this region. In case of partially overlapping regions
* it is possible that memory will be unmapped partially.
*
* @param handle Handle obtained from spi_flash_mmap
*/
void spi_flash_munmap(spi_flash_mmap_handle_t handle);
/**
* @brief Display information about mapped regions
*
* This function lists handles obtained using spi_flash_mmap, along with range
* of pages allocated to each handle. It also lists all non-zero entries of
* MMU table and corresponding reference counts.
*/
void spi_flash_mmap_dump();
#if CONFIG_SPI_FLASH_ENABLE_COUNTERS
@ -78,7 +164,7 @@ esp_err_t spi_flash_read(uint32_t src_addr, uint32_t *des_addr, uint32_t size);
typedef struct {
uint32_t count; // number of times operation was executed
uint32_t time; // total time taken, in microseconds
uint32_t bytes; // total number of bytes, for read and write operations
uint32_t bytes; // total number of bytes
} spi_flash_counter_t;
typedef struct {