/*******************************************************************************
 * Copyright (c) 2013 Linaro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Linaro <linaro-dev@lists.linaro.org>
 *******************************************************************************/

/* 
 * logger-dev-test.c  Trivial Android logger-dev unit test
 * 
 * By: AppalaNaidu Bade <appala.bade@linaro.org>
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/ioctl.h>

#ifdef UBUNTU_LOGGER

#define LOGGER_LOG_RADIO        "/dev/log_radio"     
#define LOGGER_LOG_EVENTS       "/dev/log_events"    
#define LOGGER_LOG_SYSTEM       "/dev/log_system"    
#define LOGGER_LOG_MAIN         "/dev/log_main"      

#else

#define LOGGER_LOG_RADIO        "/dev/log/radio"     
#define LOGGER_LOG_EVENTS       "/dev/log/events"    
#define LOGGER_LOG_SYSTEM       "/dev/log/system"    
#define LOGGER_LOG_MAIN         "/dev/log/main"  

#endif // UBUNTU_LOGGER

#define __LOGGERIO      0xAE
#define LOGGER_GET_LOG_BUF_SIZE    _IO(__LOGGERIO, 1) /* size of log */
#define LOGGER_GET_LOG_LEN         _IO(__LOGGERIO, 2) /* used log len */
#define LOGGER_GET_NEXT_ENTRY_LEN  _IO(__LOGGERIO, 3) /* next entry len */
#define LOGGER_FLUSH_LOG           _IO(__LOGGERIO, 4) /* flush log */
#define LOGGER_GET_VERSION         _IO(__LOGGERIO, 5) /* abi version */
#define LOGGER_SET_VERSION         _IO(__LOGGERIO, 6) /* abi version */

void show_help()
{
	printf("Usage:\n loggerdevtest logdevicename(main/events/radio/system)\n\n");
  	return;
}

int clearlog(int logfd)
{
	return ioctl(logfd, LOGGER_FLUSH_LOG);
}

int getlogsize(int logfd)
{
	return ioctl(logfd, LOGGER_GET_LOG_BUF_SIZE);
}

int getlogreadablesize(int logfd)
{
	return ioctl(logfd, LOGGER_GET_LOG_LEN);
}

int getlognextentrysize(int logfd)
{
	return ioctl(logfd, LOGGER_GET_NEXT_ENTRY_LEN);
}

int main(int argc, char *argv[])
{
	char *logdevicename;
	int log_fd;
	int log_ret;

	if (argc !=2) {
        	show_help();
    		exit(0);
  	}
  	if (strcmp(argv[argc-1],"help") == 0) {
    		show_help();
    		exit(0);
  	}
	if(strcmp(argv[argc-1],"main")==0)
		logdevicename = LOGGER_LOG_MAIN; 
  	else if(strcmp(argv[argc-1], "events")==0)
    		logdevicename = LOGGER_LOG_EVENTS;
  	else if(strcmp(argv[argc-1], "radio")==0)
    		logdevicename = LOGGER_LOG_RADIO;
  	else if(strcmp(argv[argc-1], "system")==0)
    		logdevicename = LOGGER_LOG_SYSTEM;
  	else {
    		printf("wrong input check usage and try again\n");
    		exit(0);
  	}
  
  	log_fd = open(logdevicename,O_RDWR);
  	if (log_fd < 0) {
    		printf("FAIL :Failed to open %s \n",logdevicename);
    		exit(EXIT_FAILURE);
  	} else
    		printf("PASS :Able to open %s logdevice and fd is %d\n", logdevicename,log_fd);

  	log_ret = getlogsize(log_fd);
  	if(log_ret < 0) {
    		printf("FAIL : Failed to get %s logdevice size \n ", logdevicename);
    		perror("ioctl:\n");
  	} else 
      		printf("PASS : %s logdevice size = %d\n",logdevicename,log_ret);
  	log_ret = getlogreadablesize(log_fd);
  	if(log_ret < 0){
    		printf("FAIL : Failed to get %s logdevice readablesize\n", logdevicename);
    		perror("ioctl:\n");
  	} else 
        	printf("PASS : %s logdevice readablesize = %d\n", logdevicename,log_ret);
  	log_ret = getlognextentrysize(log_fd);
  	if(log_ret < 0) {
    		printf("FAIL : Failed to get %s logdevice size of next log entry\n" , logdevicename);
    		perror("ioctl:\n");
  	} else 
      		printf("PASS : %s logdevice size of next log entry = %d\n", logdevicename,log_ret);

  	log_ret = clearlog(log_fd);
  	if(log_ret) {
    		printf("FAIL : Failed to clear the log of data %s logdevice\n" , logdevicename);
    		perror("ioctl:\n");
  	} else 
        	printf("PASS : clears the log of data %s logdevice\n" , logdevicename);
  	close(log_fd);
  	exit(0);
  
}