echo_emmc_test.c

/*
 *  emmc_test.c  --  emmc test application
 *
 *  Copyright (c) 2017 Rockchip Electronics Co. Ltd.
 *  Author: Panzhenzhuan Wang <randy.wang@rock-chips.com>
 *
 * 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.
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#include "emmc_test.h"

#define LOG_TAG "emmc_test"
#include "common.h"
#define EMMC_PROC_ERR -75

#define EMMCPATH "/sys/bus/mmc/devices/mmc0:0001/block/mmcblk0/size"
#define READ_DDR_COMMAND "cat /proc/zoneinfo | busybox grep present | \
busybox awk 'BEGIN{a=0}{a+=$2}END{print a}'"


/* for emmc  */
static int readFromFile(const char *path, char *emmcsize_char, size_t size)
{
	if (!path)
		return -1;

	int fd = open(path, O_RDONLY|O_NOCTTY|O_NDELAY, 0);
	if (fd == -1) {
		printf("open '%s' failed!\n", path);
		return -1;
	}
	ssize_t count = read(fd, emmcsize_char, size);

    //计算出有效的字符字节数
	if (count > 0) {
		while (count > 0 && emmcsize_char[count-1] == '\n')
			count--;
			emmcsize_char[count] = '\0';
	} else {
		emmcsize_char[0] = '\0';
	}
	close(fd);
	return count;
}

int get_emmc_size(char *size_data)
{
    int count;
    int emmc_size=1;
    double size = (double)(atoi(size_data))/2/1024/1024;  //需要 #include<stdlib.h>

    if (size > 0 && size <= 1)  /*1 GB */
        return 1;
    for (count = 1; count < 10; count++)
    {
        if ((size > emmc_size) && (size <= emmc_size*2))   /*2 - 512 GB*/
            return emmc_size*2;
        emmc_size *=2;
    }
    return -1;
}

void *emmc_test(void *argv)
{
	int emmc_ret = 0;
	char emmcsize_char[20];
	int emmc_size = 0;

	int ddr_ret = 0;
	char ddrsize_char[20];
	int ddr_size = 0;
	char cmd[128];

    printf("=======  emmc test starting   ========\n");
    //sprintf(cmd,"aplay %s/emmc_test_start.wav",AUDIO_PATH);
    //system(cmd);
    //system("aplay /data/test/emmc_test_start.wav");
	/* For emmc */
	memset(emmcsize_char, 0, sizeof(emmcsize_char));
	emmc_ret = readFromFile(EMMCPATH, emmcsize_char, sizeof(emmcsize_char));

	printf("readFromFile effective bytes is %d \n",emmc_ret);
	if (emmc_ret >= 0) {  /*read back normal*/
		emmc_size = get_emmc_size(emmcsize_char);
		if(emmc_size < 0){
            emmc_ret = -1;
            goto fail;
        }
		printf("=======  emmc_size is: %d GB ========\n",emmc_size);
		if (EMMC_CAPACITY != emmc_size)
        {
            goto fail;
        }

	}
	else
	{
	    goto fail;
	}
	printf("=======  emmc_test success  ========\n");

	return (void*)emmc_ret;
	fail:
        printf("=======  emmc_test failed  ========\n");

        return (void*)emmc_ret;
}

//主函数启动emmc_test
int main(int argc, char *argv[])
{
    int test_flag = 0,err_code = 0;
    char buf[COMMAND_VALUESIZE] = "emmc_test";
    char result[COMMAND_VALUESIZE] = RESULT_PASS;
    test_flag = (int)emmc_test(argv[0]);
    if(test_flag < 0)
    {
        strcpy(result,RESULT_FAIL);
        err_code = EMMC_PROC_ERR;
    }
    send_msg_to_server(buf, result, err_code);
}