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#ifndef usb_serial_h__
#define usb_serial_h__
#include <stdint.h>
void usb_init(void); // initialize everything
uint8_t usb_configured(void); // is the USB port configured
int8_t usb_rawhid_recv(uint8_t *buffer, uint8_t timeout); // receive a packet, with timeout
int8_t usb_rawhid_send(const uint8_t *buffer, uint8_t timeout); // send a packet, with timeout
// This file does not include the HID debug functions, so these empty
// macros replace them with nothing, so users can compile code that
// has calls to these functions.
#define usb_debug_putchar(c)
#define usb_debug_flush_output()
// Everything below this point is only intended for usb_serial.c
#ifdef USB_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) > 32 ? 0x30 : \
((s) > 16 ? 0x20 : \
((s) > 8 ? 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
#endif
#endif
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