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/*
* Driver for the Conexant CX25821 PCIe bridge
*
* Copyright (C) 2009 Conexant Systems Inc.
* Authors <hiep.huynh@conexant.com>, <shu.lin@conexant.com>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <linux/errno.h>
#include <linux/ioctl.h>
#define MEDUSA_READ 910
#define MEDUSA_WRITE 911
typedef struct{
char *vid_stdname;
int pixel_format;
int cif_resolution_enable;
int cif_width;
int decoder_select;
int command;
int reg_address;
int reg_data;
}downstream_user_struct;
void print_usage()
{
printf("\n*********************************\n");
printf("Sample Usage: ./medusa d 1 r 0x01\n");
printf("Sample Usage: ./medusa d 1 w 0x0 0x2\n");
printf(" d device_id Device ID (1 and above) for MultiCard\n");
printf(" r Read Medusa register\n");
printf(" w Write Medusa register\n");
}
int main(int argc, char** argv)
{
unsigned int cmd= 0 ;
int fp;
int i = 1, j = 0, k = 0, len = 0;
int mode = 0;
int register_addr = 0;
int write_value = 0;
int device_id = 0, video_id = 11;
char * temp2;
char *device_str[4] = {"/dev/video11", "/dev/video23", "/dev/video35", "/dev/video47"};
char mode_temp = 's';
char *param_temp;
if(argc < 5 || (tolower(*(argv[1])) != 'd') )
{
print_usage();
return -EINVAL;
}
sscanf(argv[2], "%d", &device_id );
i += 2;
if( device_id <= 0 || device_id > 4 )
{
print_usage();
return -EINVAL;
}
printf("\n********************************* \n");
if((fp = open(device_str[device_id-1], O_RDWR)) == -1)
{
printf("Error: cannot open device file %s !\n", device_str[device_id-1]);
return -EINVAL;
}
printf("Device %s open for IOCTL successfully!\n", device_str[device_id-1]);
for( ; i < argc; i++)
{
temp2 = argv[i];
mode_temp = tolower(temp2[0]);
param_temp = argv[i+1];
switch(mode_temp)
{
case 'r':
{
downstream_user_struct arguments;
sscanf(param_temp, "%x", ®ister_addr );
arguments.reg_address = register_addr;
arguments.command = MEDUSA_READ;
printf("Read parameters: read register = 0x%x, command = %d \n", arguments.reg_address, arguments.command);
if((ioctl(fp, arguments.command, (char *) &arguments)) == -1)
printf("Error: ioctl FAILED!\n");
printf("Reg 0x%x = 0x%x\n", arguments.reg_address, arguments.reg_data);
}
break;
case 'w':
{
downstream_user_struct arguments;
sscanf(param_temp, "%x", ®ister_addr );
sscanf(argv[i+2], "%x", &write_value );
i++;
arguments.command = MEDUSA_WRITE;
arguments.reg_address = register_addr;
arguments.reg_data = write_value;
printf("Write parameters: write register = 0x%x, write_value = 0x%x, command = %d \n", arguments.reg_address, arguments.reg_data, arguments.command);
if((ioctl(fp, arguments.command, (char *) &arguments)) == -1)
printf("Error: ioctl FAILED!\n");
}
break;
default:
printf("Please verify the options are correct!\n");
break;
}
i++;
}
printf("********************************* \n\n");
close(fp);
return 0;
}
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