#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
//#include <errno.h>
#include <alsa/asoundlib.h>

int main()
{
	char buffer[1];
	unsigned char insts[]=
		//{57,60,62,64}; // A minor pentatonic.
		{64,63,62,75}; // congas and clave.
		//{35,38,44,42}; // drum kit ( bass snare and hi hat)
		//{41,47,48,50}; // tom-toms
	int nread;
	unsigned char inst=0;
	int midi_err;
	unsigned char ch;
	snd_rawmidi_t *handle_out=0;
	int pad,vel,rawvel,samples,val,startval;
	int ret;
	FILE * usbf;
	printf("opening usb device.\n");
	usbf=fopen("/dev/ttyUSB0","r");
	if (usbf == NULL)
		exit(0);
	printf("Opening midi port\n");
	midi_err=snd_rawmidi_open(NULL, &handle_out, "virtual",0);
	if (midi_err)
		{
		printf("error: %d\n", midi_err);
		exit(1);
		}
	printf("waiting for first hit\n");
	while (-1) {
		ret=fscanf(usbf,"%d, %d, %d, %d, %d, %d",&pad,&vel,&rawvel,&samples,&val,&startval);
		if (ret == EOF) break;
		printf("pad: %d, vel: %d, rawvel: %d, samples: %d, value: %d, start value: %d\n",pad,vel,rawvel,samples,val,startval);
		inst=insts[pad];
		printf("playing note %d at velocity %d\n",inst,vel);
		ch=0x99; snd_rawmidi_write(handle_out,&ch,1);
		ch=insts[pad]; snd_rawmidi_write(handle_out,&ch,1);
		ch=vel; snd_rawmidi_write(handle_out,&ch,1);
		snd_rawmidi_drain(handle_out);
		}
	printf("Closing midi port\n");
	snd_rawmidi_drain(handle_out); 
        snd_rawmidi_close(handle_out);  
		
	exit (0);
}