75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
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/*
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* Copyright (c) 2008-2016 Allwinner Technology Co. Ltd.
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* All rights reserved.
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*
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* File : memoryAdapter.c
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* Description :
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* History :
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* Author : xyliu <xyliu@allwinnertech.com>
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* Date : 2016/04/13
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* Comment :
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*
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*
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*/
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <time.h>
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#include <sys/mman.h>
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#include <pthread.h>
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#include "memoryAdapter.h"
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#include <cutils/log.h>
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#include "ionMemory/ionAllocEntry.h"
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#define NODE_DDR_FREQ "/sys/class/devfreq/sunxi-ddrfreq/cur_freq"
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static int readNodeValue(const char *node, char * strVal, size_t size)
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{
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int ret = -1;
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int fd = open(node, O_RDONLY);
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if (fd >= 0)
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{
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read(fd, strVal, size);
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close(fd);
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ret = 0;
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}
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return ret;
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}
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//* get current ddr frequency, if it is too slow, we will cut some spec off.
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int MemAdapterGetDramFreq()
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{
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/* CEDARC_UNUSE(MemAdapterGetDramFreq); */
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char freq_val[8] = {0};
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if (!readNodeValue(NODE_DDR_FREQ, freq_val, 8))
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{
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return atoi(freq_val);
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}
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// unknow freq
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return -1;
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}
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struct ScCamMemOpsS* MemCamAdapterGetOpsS()
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{
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ALOGD("MemCamAdapterGetOpsS \n");
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return __GetIonCamMemOpsS();
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}
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struct ScMemOpsS* SecureMemAdapterGetOpsS()
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{
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#if(PLATFORM_SURPPORT_SECURE_OS == 1)
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return __GetSecureMemOpsS();
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#else
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ALOGE("platform not surpport secure os, return null");
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return NULL;
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#endif
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}
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