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#ifndef usb_gamepad_h__
#define usb_gamepad_h__
#include <stdint.h>
void usb_init(void); // initialize everything
uint8_t usb_configured(void); // is the USB port configured
typedef struct {
// digital buttons, 0 = off, 1 = on
uint8_t square_btn : 1;
uint8_t cross_btn : 1;
uint8_t circle_btn : 1;
uint8_t triangle_btn : 1;
uint8_t l1_btn : 1;
uint8_t r1_btn : 1;
uint8_t l2_btn : 1;
uint8_t r2_btn : 1;
uint8_t select_btn : 1;
uint8_t start_btn : 1;
uint8_t : 2;
uint8_t ps_btn : 1;
uint8_t : 3;
// digital direction, use the dir_* constants(enum)
// 8 = center, 0 = up, 1 = up/right, 2 = right, 3 = right/down
// 4 = down, 5 = down/left, 6 = left, 7 = left/up
uint8_t direction;
// left and right analog sticks, 0x00 left/up, 0x80 middle, 0xff right/down
uint8_t l_x_axis;
uint8_t l_y_axis;
uint8_t r_x_axis;
uint8_t r_y_axis;
uint8_t unknown[4];
// button axis, 0x00 = unpressed, 0xff = fully pressed
uint8_t triangle_axis;
uint8_t circle_axis;
uint8_t cross_axis;
uint8_t square_axis;
uint8_t l1_axis;
uint8_t r1_axis;
uint8_t l2_axis;
uint8_t r2_axis;
} gamepad_state_t;
extern gamepad_state_t gamepad_state;
void usb_gamepad_reset_state(void);
int8_t usb_gamepad_send(void);
// Everything below this point is only intended for usb_gamepad.c
#ifdef USB_GAMEPAD_PRIVATE_INCLUDE
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#define EP_TYPE_CONTROL 0x00
#define EP_TYPE_BULK_IN 0x81
#define EP_TYPE_BULK_OUT 0x80
#define EP_TYPE_INTERRUPT_IN 0xC1
#define EP_TYPE_INTERRUPT_OUT 0xC0
#define EP_TYPE_ISOCHRONOUS_IN 0x41
#define EP_TYPE_ISOCHRONOUS_OUT 0x40
#define EP_SINGLE_BUFFER 0x02
#define EP_DOUBLE_BUFFER 0x06
#define EP_SIZE(s) ((s) == 64 ? 0x30 : \
((s) == 32 ? 0x20 : \
((s) == 16 ? 0x10 : \
0x00)))
#define MAX_ENDPOINT 4
#define LSB(n) (n & 255)
#define MSB(n) ((n >> 8) & 255)
#if defined(__AVR_AT90USB162__)
#define HW_CONFIG()
#define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
#define USB_CONFIG() (USBCON = (1<<USBE))
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
#elif defined(__AVR_ATmega32U4__)
#define HW_CONFIG() (UHWCON = 0x01)
#define PLL_CONFIG() (PLLCSR = 0x12)
#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
#elif defined(__AVR_AT90USB646__)
#define HW_CONFIG() (UHWCON = 0x81)
#define PLL_CONFIG() (PLLCSR = 0x1A)
#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
#elif defined(__AVR_AT90USB1286__)
#define HW_CONFIG() (UHWCON = 0x81)
#define PLL_CONFIG() (PLLCSR = 0x16)
#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
#endif
// standard control endpoint request types
#define GET_STATUS 0
#define CLEAR_FEATURE 1
#define SET_FEATURE 3
#define SET_ADDRESS 5
#define GET_DESCRIPTOR 6
#define GET_CONFIGURATION 8
#define SET_CONFIGURATION 9
#define GET_INTERFACE 10
#define SET_INTERFACE 11
// HID (human interface device)
#define HID_GET_REPORT 1
#define HID_GET_IDLE 2
#define HID_GET_PROTOCOL 3
#define HID_SET_REPORT 9
#define HID_SET_IDLE 10
#define HID_SET_PROTOCOL 11
// CDC (communication class device)
#define CDC_SET_LINE_CODING 0x20
#define CDC_GET_LINE_CODING 0x21
#define CDC_SET_CONTROL_LINE_STATE 0x22
#endif
#endif
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