#pragma once

#include <string.h>

typedef int (*usb_cb_setup_request_t)(int endpoint,usb_device_request_t *request);


typedef struct {
	uint8_t		bLength;
	uint8_t		bDescriptorType;
	wchar_t		characters[];
} usbstring_t;

#define USBSTRING_INIT(text)	{ bLength: sizeof(text), bDescriptorType: DT_STRING, characters: text }

static inline void usbstring_set(usbstring_t *dst,char *src){
	int i,
		n = strlen(src);
		
	for (i=0;i<n;i++){
		dst->characters[i] = (wchar_t)src[i];
	}
	dst->bDescriptorType = DT_STRING;
	dst->bLength = (n*2) + 2;
};


typedef struct {	
	uint8_t		size;	
	struct usb_standard_configuration_descriptor
				*descriptor;
		
	usb_cb_setup_request_t
				setup_handler[ 7 ];
	
} device_configuration_t;


typedef struct {
	struct usb_standard_device_descriptor
				descriptor;
				
	device_configuration_t
				**configurations;
				
	usbstring_t
				**strings;
} usb_device_setup_t;


typedef union {
	uint8_t		value;
	struct {
		uint8_t		HWEnabled:1;	// USB Device Hardware is enabled
		/* Device states USB Spec. 2.0 Chapter 9 */
		uint8_t		Attached:1;		
		uint8_t		Powered:1;
		uint8_t		Default:1;
		uint8_t		Address:1;
		uint8_t		Configured:1;
		uint8_t		Suspended:1;
		
		uint8_t		Debugged:1;		// 1-Bit Flag reserved for debugging, must be ignored
	};
} usb_device_state_t;