* arch/xtensa/src/esp32s2/esp32s2_rtcheap.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include <nuttx/mm/mm.h>
#include "esp32s2_rtcheap.h"
* Private Data
****************************************************************************/
static struct mm_heap_s *g_rtcheap;
* Extern values declaration
****************************************************************************/
extern uint8_t _srtcheap[];
extern uint8_t _ertcheap[];
* Public Functions
****************************************************************************/
* Name: esp32s2_rtcheap_initialize
*
* Description:
* Initialize the RTC heap.
*
****************************************************************************/
void esp32s2_rtcheap_initialize(void)
{
void *start;
size_t size;
start = (void *)_srtcheap;
size = _ertcheap - _srtcheap;
g_rtcheap = mm_initialize("rtcheap", start, size);
}
* Name: esp32s2_rtcheap_malloc
*
* Description:
* Allocate memory from the RTC heap.
*
* Parameters:
* size - Size (in bytes) of the memory region to be allocated.
*
* Return Value:
* Adress of the allocated memory space. NULL, if allocation fails.
*
****************************************************************************/
void *esp32s2_rtcheap_malloc(size_t size)
{
return mm_malloc(g_rtcheap, size);
}
* Name: esp32s2_rtcheap_calloc
*
* Description:
* Calculates the size of the allocation and allocate memory from
* the RTC heap.
*
* Parameters:
* n - Size (in types) of the memory region to be allocated.
* elem_size - Size (in bytes) of the type to be allocated.
*
* Return Value:
* Adress of the allocated memory space. NULL, if allocation fails.
*
****************************************************************************/
void *esp32s2_rtcheap_calloc(size_t n, size_t elem_size)
{
return mm_calloc(g_rtcheap, n, elem_size);
}
* Name: esp32s2_rtcheap_realloc
*
* Description:
* Reallocate memory from the RTC heap.
*
* Parameters:
* ptr - Adress to be reallocate.
* size - Size (in bytes) to be reallocate.
*
* Return Value:
* Adress of the possibly moved memory space. NULL, if allocation fails.
*
****************************************************************************/
void *esp32s2_rtcheap_realloc(void *ptr, size_t size)
{
return mm_realloc(g_rtcheap, ptr, size);
}
* Name: esp32s2_rtcheap_zalloc
*
* Description:
* Allocate and zero memory from the RTC heap.
*
* Parameters:
* size - Size (in bytes) of the memory region to be allocated.
*
* Return Value:
* Adress of the allocated memory space. NULL, if allocation fails.
*
****************************************************************************/
void *esp32s2_rtcheap_zalloc(size_t size)
{
return mm_zalloc(g_rtcheap, size);
}
* Name: esp32s2_rtcheap_free
*
* Description:
* Free memory from the RTC heap.
*
* Parameters:
* mem - Adress to be freed.
*
****************************************************************************/
void esp32s2_rtcheap_free(void *mem)
{
mm_free(g_rtcheap, mem);
}
* Name: esp32s2_rtcheap_memalign
*
* Description:
* memalign requests more than enough space from malloc, finds a region
* within that chunk that meets the alignment request and then frees any
* leading or trailing space.
*
* The alignment argument must be a power of two (not checked). 8-byte
* alignment is guaranteed by normal malloc calls.
*
* Parameters:
* alignment - Requested alignment.
* size - Size (in bytes) of the memory region to be allocated.
*
* Return Value:
* Adress of the allocated adress. NULL, if allocation fails.
*
****************************************************************************/
void *esp32s2_rtcheap_memalign(size_t alignment, size_t size)
{
return mm_memalign(g_rtcheap, alignment, size);
}
* Name: esp32s2_rtcheap_heapmember
*
* Description:
* Check if an address lies in the RTC heap.
*
* Parameters:
* mem - The address to check.
*
* Return Value:
* True if the address is a member of the RTC heap. False if not.
*
****************************************************************************/
bool esp32s2_rtcheap_heapmember(void *mem)
{
return mm_heapmember(g_rtcheap, mem);
}
* Name: esp32s2_rtcheap_mallinfo
*
* Description:
* mallinfo returns a copy of updated current heap information for the
* user heap.
*
* Parameters:
* None.
*
* Return Value:
* info - Where memory information will be copied.
*
****************************************************************************/
struct mallinfo esp32s2_rtcheap_mallinfo(void)
{
return mm_mallinfo(g_rtcheap);
}