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#ifndef _SURVIVE_INTERNAL_H
#define _SURVIVE_INTERNAL_H

#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <libusb-1.0/libusb.h>

#define SV_INFO( x... ) printf( x )
#define SV_ERROR( x... ) fprintf( stderr, x )

//XXX TODO This one needs to be rewritten.
#define SV_KILL()		exit(0)

#define USB_DEV_HMD			0
#define USB_DEV_LIGHTHOUSE	1
#define USB_DEV_WATCHMAN1	2
#define USB_DEV_WATCHMAN2	3
#define MAX_USB_DEVS				4


#define USB_IF_HMD			0
#define USB_IF_LIGHTHOUSE 	1
#define USB_IF_WATCHMAN1	2
#define USB_IF_WATCHMAN2	3
#define USB_IF_LIGHTCAP		4
#define MAX_INTERFACES				5

#define INTBUFFSIZE	64

struct SurviveContext;
struct SurviveUSBInterface;


//XXX TODO: Roll this into the main structure.

typedef void (*usb_callback)( struct SurviveUSBInterface * ti );

struct SurviveUSBInterface
{
	struct libusb_transfer * transfer;
	struct SurviveContext * ctx;
	int actual_len;
	uint8_t buffer[INTBUFFSIZE];
	usb_callback cb;
	int which_interface_am_i;
	const char * hname; //human names
};

struct SurviveContext
{
    struct libusb_context* usbctx;
	struct libusb_device_handle * udev[MAX_USB_DEVS];
	struct SurviveUSBInterface uiface[MAX_INTERFACES];
};

void survive_usb_close( struct SurviveContext * t );
int survive_usb_init( struct SurviveContext * t );
int survive_usb_poll( struct SurviveContext * ctx );

#endif