upload android base code part4

android/hardware/aw/camera/memory/memoryAdapter.c

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