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me-no-dev 2017-09-14 08:54:34 +03:00
parent 27d54b331d
commit 658acfef2a
6 changed files with 595 additions and 178 deletions
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35
tools/sdk/include/heap/esp_heap_alloc_caps.h Normal file
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// 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.
#pragma once
#warning "This header is deprecated, please use functions defined in esp_heap_caps.h instead."
#include "esp_heap_caps.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Deprecated FreeRTOS-style esp_heap_alloc_caps.h functions follow */
/* Please use heap_caps_malloc() instead of this function */
void *pvPortMallocCaps(size_t xWantedSize, uint32_t caps) asm("heap_caps_malloc") __attribute__((deprecated));
/* Please use heap_caps_get_minimum_free_heap_size() instead of this function */
size_t xPortGetMinimumEverFreeHeapSizeCaps( uint32_t caps ) asm("heap_caps_get_minimum_free_heap_size") __attribute__((deprecated));
/* Please use heap_caps_get_free_size() instead of this function */
size_t xPortGetFreeHeapSizeCaps( uint32_t caps ) asm("heap_caps_get_free_heap_size") __attribute__((deprecated));
#ifdef __cplusplus
}
#endif

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tools/sdk/include/heap/esp_heap_caps.h Normal file
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// 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.
#pragma once
#include <stdint.h>
#include <stdlib.h>
#include "multi_heap.h"
/**
* @brief Flags to indicate the capabilities of the various memory systems
*/
#define MALLOC_CAP_EXEC (1<<0) ///< Memory must be able to run executable code
#define MALLOC_CAP_32BIT (1<<1) ///< Memory must allow for aligned 32-bit data accesses
#define MALLOC_CAP_8BIT (1<<2) ///< Memory must allow for 8/16/...-bit data accesses
#define MALLOC_CAP_DMA (1<<3) ///< Memory must be able to accessed by DMA
#define MALLOC_CAP_PID2 (1<<4) ///< Memory must be mapped to PID2 memory space (PIDs are not currently used)
#define MALLOC_CAP_PID3 (1<<5) ///< Memory must be mapped to PID3 memory space (PIDs are not currently used)
#define MALLOC_CAP_PID4 (1<<6) ///< Memory must be mapped to PID4 memory space (PIDs are not currently used)
#define MALLOC_CAP_PID5 (1<<7) ///< Memory must be mapped to PID5 memory space (PIDs are not currently used)
#define MALLOC_CAP_PID6 (1<<8) ///< Memory must be mapped to PID6 memory space (PIDs are not currently used)
#define MALLOC_CAP_PID7 (1<<9) ///< Memory must be mapped to PID7 memory space (PIDs are not currently used)
#define MALLOC_CAP_SPISRAM (1<<10) ///< Memory must be in SPI SRAM
#define MALLOC_CAP_INVALID (1<<31) ///< Memory can't be used / list end marker
/**
* @brief Allocate a chunk of memory which has the given capabilities
*
* Equivalent semantics to libc malloc(), for capability-aware memory.
*
* In IDF, ``malloc(p)`` is equivalent to ``heaps_caps_malloc(p, MALLOC_CAP_8BIT)``.
*
* @param size Size, in bytes, of the amount of memory to allocate
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory to be returned
*
* @return A pointer to the memory allocated on success, NULL on failure
*/
void *heap_caps_malloc(size_t size, uint32_t caps);
/**
* @brief Free memory previously allocated via heap_caps_malloc() or heap_caps_realloc().
*
* Equivalent semantics to libc free(), for capability-aware memory.
*
* In IDF, ``free(p)`` is equivalent to ``heap_caps_free(p)``.
*
* @param ptr Pointer to memory previously returned from heap_caps_malloc() or heap_caps_realloc(). Can be NULL.
*/
void heap_caps_free( void *ptr);
/**
* @brief Reallocate memory previously allocated via heaps_caps_malloc() or heaps_caps_realloc().
*
* Equivalent semantics to libc realloc(), for capability-aware memory.
*
* In IDF, ``realloc(p, s)`` is equivalent to ``heap_caps_realloc(p, s, MALLOC_CAP_8BIT)``.
*
* 'caps' parameter can be different to the capabilities that any original 'ptr' was allocated with. In this way,
* realloc can be used to "move" a buffer if necessary to ensure it meets a new set of capabilities.
*
* @param ptr Pointer to previously allocated memory, or NULL for a new allocation.
* @param size Size of the new buffer requested, or 0 to free the buffer.
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory desired for the new allocation.
*
* @return Pointer to a new buffer of size 'size' with capabilities 'caps', or NULL if allocation failed.
*/
void *heap_caps_realloc( void *ptr, size_t size, int caps);
/**
* @brief Get the total free size of all the regions that have the given capabilities
*
* This function takes all regions capable of having the given capabilities allocated in them
* and adds up the free space they have.
*
* Note that because of heap fragmentation it is probably not possible to allocate a single block of memory
* of this size. Use heap_caps_get_largest_free_block() for this purpose.
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory
*
* @return Amount of free bytes in the regions
*/
size_t heap_caps_get_free_size( uint32_t caps );
/**
* @brief Get the total minimum free memory of all regions with the given capabilities
*
* This adds all the low water marks of the regions capable of delivering the memory
* with the given capabilities.
*
* Note the result may be less than the global all-time minimum available heap of this kind, as "low water marks" are
* tracked per-region. Individual regions' heaps may have reached their "low water marks" at different points in time. However
* this result still gives a "worst case" indication for all-time minimum free heap.
*
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory
*
* @return Amount of free bytes in the regions
*/
size_t heap_caps_get_minimum_free_size( uint32_t caps );
/**
* @brief Get the largest free block of memory able to be allocated with the given capabilities.
*
* Returns the largest value of ``s`` for which ``heap_caps_malloc(s, caps)`` will succeed.
*
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory
*
* @return Size of largest free block in bytes.
*/
size_t heap_caps_get_largest_free_block( uint32_t caps );
/**
* @brief Get heap info for all regions with the given capabilities.
*
* Calls multi_heap_info() on all heaps which share the given capabilities. The information returned is an aggregate
* across all matching heaps. The meanings of fields are the same as defined for multi_heap_info_t, except that
* ``minimum_free_bytes`` has the same caveats described in heap_caps_get_minimum_free_size().
*
* @param info Pointer to a structure which will be filled with relevant
* heap metadata.
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory
*
*/
void heap_caps_get_info( multi_heap_info_t *info, uint32_t caps );
/**
* @brief Print a summary of all memory with the given capabilities.
*
* Calls multi_heap_info() on all heaps which share the given capabilities, and
* prints a two-line summary for each, then a total summary.
*
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory
*
*/
void heap_caps_print_heap_info( uint32_t caps );
/**
* @brief Check integrity of all heaps with the given capabilities.
*
* Calls multi_heap_check() on all heaps which share the given capabilities. Optionally
* print errors if the heaps are corrupt.
*
* Call ``heap_caps_check_integrity(MALLOC_CAP_INVALID, print_errors)`` to check
* all regions' heaps.
*
* @param caps Bitwise OR of MALLOC_CAP_* flags indicating the type
* of memory
* @param print_errors Print specific errors if heap corruption is found.
*
* @return True if all heaps are valid, False if at least one heap is corrupt.
*/
bool heap_caps_check_integrity(uint32_t caps, bool print_errors);

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// Copyright 2017 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.
#pragma once
#include "esp_err.h"
#include "esp_heap_caps.h"
#include "soc/soc_memory_layout.h"
/**
* @brief Initialize the capability-aware heap allocator.
*
* This is called once in the IDF startup code. Do not call it
* at other times.
*/
void heap_caps_init();
/**
* @brief Enable heap(s) in memory regions where the startup stacks are located.
*
* On startup, the pro/app CPUs have a certain memory region they use as stack, so we
* cannot do allocations in the regions these stack frames are. When FreeRTOS is
* completely started, they do not use that memory anymore and heap(s) there can
* be enabled.
*/
void heap_caps_enable_nonos_stack_heaps();
/**
* @brief Add a region of memory to the collection of heaps at runtime.
*
* Most memory regions are defined in soc_memory_layout.c for the SoC,
* and are registered via heap_caps_init(). Some regions can't be used
* immediately and are later enabled via heap_caps_enable_nonos_stack_heaps().
*
* Call this function to add a region of memory to the heap at some later time.
*
* This function does not consider any of the "reserved" regions or other data in soc_memory_layout, caller needs to
* consider this themselves.
*
* All memory within the region specified by start & end parameters must be otherwise unused.
*
* The capabilities of the newly registered memory will be determined by the start address, as looked up in the regions
* specified in soc_memory_layout.c.
*
* Use heap_caps_add_region_with_caps() to register a region with custom capabilities.
*
* @param start Start address of new region.
* @param end End address of new region.
*
* @return ESP_OK on success, ESP_ERR_INVALID_ARG if a parameter is invalid, ESP_ERR_NOT_FOUND if the
* specified start address doesn't reside in a known region, or any error returned by heap_caps_add_region_with_caps().
*/
esp_err_t heap_caps_add_region(intptr_t start, intptr_t end);
/**
* @brief Add a region of memory to the collection of heaps at runtime, with custom capabilities.
*
* Similar to heap_caps_add_region(), only custom memory capabilities are specified by the caller.
*
* @param caps Ordered array of capability masks for the new region, in order of priority. Must have length
* SOC_MEMORY_TYPE_NO_PRIOS. Does not need to remain valid after the call returns.
* @param start Start address of new region.
* @param end End address of new region.
*
* @return ESP_OK on success, ESP_ERR_INVALID_ARG if a parameter is invalid, ESP_ERR_NO_MEM if no
* memory to register new heap.
*/
esp_err_t heap_caps_add_region_with_caps(const uint32_t caps[], intptr_t start, intptr_t end);

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tools/sdk/include/heap/esp_heap_trace.h Normal file
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// 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.
#pragma once
#include "sdkconfig.h"
#include <stdint.h>
#include <esp_err.h>
#if !defined(CONFIG_HEAP_TRACING) && !defined(HEAP_TRACE_SRCFILE)
#warning "esp_heap_trace.h is included but heap tracing is disabled in menuconfig, functions are no-ops"
#endif
#ifndef CONFIG_HEAP_TRACING_STACK_DEPTH
#define CONFIG_HEAP_TRACING_STACK_DEPTH 0
#endif
typedef enum {
HEAP_TRACE_ALL,
HEAP_TRACE_LEAKS,
} heap_trace_mode_t;
/**
* @brief Trace record data type. Stores information about an allocated region of memory.
*/
typedef struct {
uint32_t ccount; ///< CCOUNT of the CPU when the allocation was made. LSB (bit value 1) is the CPU number (0 or 1). */
void *address; ///< Address which was allocated
size_t size; ///< Size of the allocation
void *alloced_by[CONFIG_HEAP_TRACING_STACK_DEPTH]; ///< Call stack of the caller which allocated the memory.
void *freed_by[CONFIG_HEAP_TRACING_STACK_DEPTH]; ///< Call stack of the caller which freed the memory (all zero if not freed.)
} heap_trace_record_t;
/**
* @brief Initialise heap tracing in standalone mode.
* @note Standalone mode is the only mode currently supported.
*
* This function must be called before any other heap tracing functions.
*
* To disable heap tracing and allow the buffer to be freed, stop tracing and then call heap_trace_init_standalone(NULL, 0);
*
* @param record_buffer Provide a buffer to use for heap trace data. Must remain valid any time heap tracing is enabled, meaning
* it must be allocated from internal memory not in PSRAM.
* @param num_records Size of the heap trace buffer, as number of record structures.
* @return
* - ESP_ERR_NOT_SUPPORTED Project was compiled without heap tracing enabled in menuconfig.
* - ESP_ERR_INVALID_STATE Heap tracing is currently in progress.
* - ESP_OK Heap tracing initialised successfully.
*/
esp_err_t heap_trace_init_standalone(heap_trace_record_t *record_buffer, size_t num_records);
/**
* @brief Start heap tracing. All heap allocations & frees will be traced, until heap_trace_stop() is called.
*
* @note heap_trace_init_standalone() must be called to provide a valid buffer, before this function is called.
*
* @note Calling this function while heap tracing is running will reset the heap trace state and continue tracing.
*
* @param mode Mode for tracing.
* - HEAP_TRACE_ALL means all heap allocations and frees are traced.
* - HEAP_TRACE_LEAKS means only suspected memory leaks are traced. (When memory is freed, the record is removed from the trace buffer.)
* @return
* - ESP_ERR_NOT_SUPPORTED Project was compiled without heap tracing enabled in menuconfig.
* - ESP_ERR_INVALID_STATE A non-zero-length buffer has not been set via heap_trace_init_standalone().
* - ESP_OK Tracing is started.
*/
esp_err_t heap_trace_start(heap_trace_mode_t mode);
/**
* @brief Stop heap tracing.
*
* @return
* - ESP_ERR_NOT_SUPPORTED Project was compiled without heap tracing enabled in menuconfig.
* - ESP_ERR_INVALID_STATE Heap tracing was not in progress.
* - ESP_OK Heap tracing stopped..
*/
esp_err_t heap_trace_stop(void);
/**
* @brief Resume heap tracing which was previously stopped.
*
* Unlike heap_trace_start(), this function does not clear the
* buffer of any pre-existing trace records.
*
* The heap trace mode is the same as when heap_trace_start() was
* last called (or HEAP_TRACE_ALL if heap_trace_start() was never called).
*
* @return
* - ESP_ERR_NOT_SUPPORTED Project was compiled without heap tracing enabled in menuconfig.
* - ESP_ERR_INVALID_STATE Heap tracing was already started.
* - ESP_OK Heap tracing resumed.
*/
esp_err_t heap_trace_resume(void);
/**
* @brief Return number of records in the heap trace buffer
*
* It is safe to call this function while heap tracing is running.
*/
size_t heap_trace_get_count(void);
/**
* @brief Return a raw record from the heap trace buffer
*
* @note It is safe to call this function while heap tracing is running, however in HEAP_TRACE_LEAK mode record indexing may
* skip entries unless heap tracing is stopped first.
*
* @param index Index (zero-based) of the record to return.
* @param[out] record Record where the heap trace record will be copied.
* @return
* - ESP_ERR_NOT_SUPPORTED Project was compiled without heap tracing enabled in menuconfig.
* - ESP_ERR_INVALID_STATE Heap tracing was not initialised.
* - ESP_ERR_INVALID_ARG Index is out of bounds for current heap trace record count.
* - ESP_OK Record returned successfully.
*/
esp_err_t heap_trace_get(size_t index, heap_trace_record_t *record);
/**
* @brief Dump heap trace record data to stdout
*
* @note It is safe to call this function while heap tracing is running, however in HEAP_TRACE_LEAK mode the dump may skip
* entries unless heap tracing is stopped first.
*
*
*/
void heap_trace_dump(void);

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tools/sdk/include/heap/esp_ota_ops.h
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// 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 */

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// 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.
#pragma once
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
/* multi_heap is a heap implementation for handling multiple
heterogenous heaps in a single program.
Any contiguous block of memory can be registered as a heap.
*/
#ifdef __cplusplus
extern "C" {
#endif
/** @brief Opaque handle to a registered heap */
typedef struct multi_heap_info *multi_heap_handle_t;
/** @brief malloc() a buffer in a given heap
*
* Semantics are the same as standard malloc(), only the returned buffer will be allocated in the specified heap.
*
* @param heap Handle to a registered heap.
* @param size Size of desired buffer.
*
* @return Pointer to new memory, or NULL if allocation fails.
*/
void *multi_heap_malloc(multi_heap_handle_t heap, size_t size);
/** @brief free() a buffer in a given heap.
*
* Semantics are the same as standard free(), only the argument 'p' must be NULL or have been allocated in the specified heap.
*
* @param heap Handle to a registered heap.
* @param p NULL, or a pointer previously returned from multi_heap_malloc() or multi_heap_realloc() for the same heap.
*/
void multi_heap_free(multi_heap_handle_t heap, void *p);
/** @brief realloc() a buffer in a given heap.
*
* Semantics are the same as standard realloc(), only the argument 'p' must be NULL or have been allocated in the specified heap.
*
* @param heap Handle to a registered heap.
* @param p NULL, or a pointer previously returned from multi_heap_malloc() or multi_heap_realloc() for the same heap.
* @param size Desired new size for buffer.
*
* @return New buffer of 'size' containing contents of 'p', or NULL if reallocation failed.
*/
void *multi_heap_realloc(multi_heap_handle_t heap, void *p, size_t size);
/** @brief Return the size that a particular pointer was allocated with.
*
* @param heap Handle to a registered heap.
* @param p Pointer, must have been previously returned from multi_heap_malloc() or multi_heap_realloc() for the same heap.
*
* @return Size of the memory allocated at this block. May be more than the original size argument, due
* to padding and minimum block sizes.
*/
size_t multi_heap_get_allocated_size(multi_heap_handle_t heap, void *p);
/** @brief Register a new heap for use
*
* This function initialises a heap at the specified address, and returns a handle for future heap operations.
*
* There is no equivalent function for deregistering a heap - if all blocks in the heap are free, you can immediately start using the memory for other purposes.
*
* @param start Start address of the memory to use for a new heap.
* @param size Size (in bytes) of the new heap.
*
* @return Handle of a new heap ready for use, or NULL if the heap region was too small to be initialised.
*/
multi_heap_handle_t multi_heap_register(void *start, size_t size);
/** @brief Associate a private lock pointer with a heap
*
* The lock argument is supplied to the MULTI_HEAP_LOCK() and MULTI_HEAP_UNLOCK() macros, defined in multi_heap_platform.h.
*
* When the heap is first registered, the associated lock is NULL.
*
* @param heap Handle to a registered heap.
* @param lock Optional pointer to a locking structure to associate with this heap.
*/
void multi_heap_set_lock(multi_heap_handle_t heap, void* lock);
/** @brief Dump heap information to stdout
*
* For debugging purposes, this function dumps information about every block in the heap to stdout.
*
* @param heap Handle to a registered heap.
*/
void multi_heap_dump(multi_heap_handle_t heap);
/** @brief Check heap integrity
*
* Walks the heap and checks all heap data structures are valid. If any errors are detected, an error-specific message
* can be optionally printed to stderr. Print behaviour can be overriden at compile time by defining
* MULTI_CHECK_FAIL_PRINTF in multi_heap_platform.h.
*
* @param heap Handle to a registered heap.
* @param print_errors If true, errors will be printed to stderr.
* @return true if heap is valid, false otherwise.
*/
bool multi_heap_check(multi_heap_handle_t heap, bool print_errors);
/** @brief Return free heap size
*
* Returns the number of bytes available in the heap.
*
* Equivalent to the total_free_bytes member returned by multi_heap_get_heap_info().
*
* Note that the heap may be fragmented, so the actual maximum size for a single malloc() may be lower. To know this
* size, see the largest_free_block member returned by multi_heap_get_heap_info().
*
* @param heap Handle to a registered heap.
* @return Number of free bytes.
*/
size_t multi_heap_free_size(multi_heap_handle_t heap);
/** @brief Return the lifetime minimum free heap size
*
* Equivalent to the minimum_free_bytes member returned by multi_get_heap_info().
*
* Returns the lifetime "low water mark" of possible values returned from multi_free_heap_size(), for the specified
* heap.
*
* @param heap Handle to a registered heap.
* @return Number of free bytes.
*/
size_t multi_heap_minimum_free_size(multi_heap_handle_t heap);
/** @brief Structure to access heap metadata via multi_get_heap_info */
typedef struct {
size_t total_free_bytes; ///< Total free bytes in the heap. Equivalent to multi_free_heap_size().
size_t total_allocated_bytes; ///< Total bytes allocated to data in the heap.
size_t largest_free_block; ///< Size of largest free block in the heap. This is the largest malloc-able size.
size_t minimum_free_bytes; ///< Lifetime minimum free heap size. Equivalent to multi_minimum_free_heap_size().
size_t allocated_blocks; ///< Number of (variable size) blocks allocated in the heap.
size_t free_blocks; ///< Number of (variable size) free blocks in the heap.
size_t total_blocks; ///< Total number of (variable size) blocks in the heap.
} multi_heap_info_t;
/** @brief Return metadata about a given heap
*
* Fills a multi_heap_info_t structure with information about the specified heap.
*
* @param heap Handle to a registered heap.
* @param info Pointer to a structure to fill with heap metadata.
*/
void multi_heap_get_info(multi_heap_handle_t heap, multi_heap_info_t *info);
#ifdef __cplusplus
}
#endif