123 lines
4.0 KiB
C
123 lines
4.0 KiB
C
|
/*
|
||
|
|
* This file is part of FH8620 BSP for RT-Thread distribution.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2016 Shanghai Fullhan Microelectronics Co., Ltd.
|
||
|
|
* All rights reserved
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along
|
||
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
|
*
|
||
|
|
* Visit http://www.fullhan.com to get contact with Fullhan.
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Include Section
|
||
|
|
* add all #include here
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#include "dma_mem.h"
|
||
|
|
#ifdef RT_USING_DMA_MEM
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Define section
|
||
|
|
* add all #define here
|
||
|
|
*****************************************************************************/
|
||
|
|
//#define FH_TEST_DMA_MEM
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* ADT section
|
||
|
|
* add definition of user defined Data Type that only be used in this file here
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
* Function prototype section
|
||
|
|
* add prototypes for all functions called by this file,execepting those
|
||
|
|
* declared in header file
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Global variables section - Exported
|
||
|
|
* add declaration of global variables that will be exported here
|
||
|
|
* e.g.
|
||
|
|
* int8_t foo;
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
|
||
|
|
* static fun;
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Global variables section - Local
|
||
|
|
* define global variables(will be refered only in this file) here,
|
||
|
|
* static keyword should be used to limit scope of local variable to this file
|
||
|
|
* e.g.
|
||
|
|
* static uint8_t ufoo;
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
static struct rt_memheap dma_heap = {0};
|
||
|
|
|
||
|
|
|
||
|
|
/* function body */
|
||
|
|
/*****************************************************************************
|
||
|
|
* Description:
|
||
|
|
* add funtion description here
|
||
|
|
* Parameters:
|
||
|
|
* description for each argument, new argument starts at new line
|
||
|
|
* Return:
|
||
|
|
* what does this function returned?
|
||
|
|
*****************************************************************************/
|
||
|
|
rt_err_t fh_dma_mem_init(rt_uint32_t *mem_start,rt_uint32_t size){
|
||
|
|
return rt_memheap_init(&dma_heap,"dma_heap",mem_start,size);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void *fh_dma_mem_malloc(rt_uint32_t size){
|
||
|
|
return rt_memheap_alloc(&dma_heap, size);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void fh_dma_mem_free(void *ptr){
|
||
|
|
rt_memheap_free(ptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef FH_TEST_DMA_MEM
|
||
|
|
int dma_mem_debug(void *ptr){
|
||
|
|
//rt_memheap_free(ptr);
|
||
|
|
rt_kprintf("dma mem start 0x%08x\n",(rt_uint32_t)dma_heap.start_addr);
|
||
|
|
rt_kprintf("dma mem total size 0x%08x\n",dma_heap.pool_size);
|
||
|
|
rt_kprintf("dma mem left size 0x%08x\n",dma_heap.available_size);
|
||
|
|
rt_kprintf("dma mem max use size 0x%08x\n",dma_heap.max_used_size);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef RT_USING_FINSH
|
||
|
|
#include <finsh.h>
|
||
|
|
#ifdef FH_TEST_DMA_MEM
|
||
|
|
FINSH_FUNCTION_EXPORT(dma_mem_debug, dma_start & left size & max_use);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|