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

#include "asm-arm/arch-mxc/imx_adc.h"
#define CNTS_PER_VOLT (2008.5/1.251)

int main(int argc, char *argv[])
{
  printf("Opening %s...", IMX_ADC_DEVICE);
  int adc_fd = open(IMX_ADC_DEVICE, 0);
  if (!adc_fd) {
    printf("Error opening %s:  %s\n", IMX_ADC_DEVICE, strerror(errno));
    exit(-1);
  } else {
    printf("Success!\n");
  }

  
  printf("initializing the ADC...");
  int err = ioctl(adc_fd, IMX_ADC_INIT);
  if (err) {
    printf("Failure.  %d.\n", err);
    exit(-1);
  } else {
    printf("Success!\n");
  }
  int j;
  printf("starting conversion...");
  int loops = 500;
  int results_per_loop = 4;
  for (j = 0; j < loops; j++) {
    struct t_adc_convert_param convert_param;
    convert_param.channel=GER_PURPOSE_ADC0;
    int i;
    for (i = 0; i < 16; i++) {
      convert_param.result[i] = 0xdead;
    }
    err = ioctl(adc_fd, IMX_ADC_CONVERT, &convert_param);
    if (err) {
      printf("Failure.  %d.\n", err);
    } else {
      // printf("Success!\n");
      for (i = 0; i < results_per_loop; i++) {
	printf("%05f\t", ((float)convert_param.result[i] / CNTS_PER_VOLT));
	
      }
      printf("\n");
    }
    usleep(1000*100);
  }
  err = close(adc_fd);
  if (err) {
    printf("Error closing %s, fd was %d\n", IMX_ADC_DEVICE, adc_fd);
    exit(-1);
  }


}