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/* USB Keyboard Plus Debug Channel Example for Teensy USB Development Board
* http://www.pjrc.com/teensy/usb_keyboard.html
* Copyright (c) 2009 PJRC.COM, LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef USB_H
#define USB_H 1
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
extern bool remote_wakeup;
extern bool suspend;
void usb_init(void); // initialize everything
uint8_t usb_configured(void); // is the USB port configured
void usb_remote_wakeup(void);
#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)))
#if defined(__AVR_AT90USB162__) || defined(__AVR_AT90USB82__)
# define MAX_ENDPOINT 4
# define UERST_MASK 0x1E
#else
# define MAX_ENDPOINT 6
# define UERST_MASK 0x7E
#endif
#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
#define HID_REPORT_INPUT 1
#define HID_REPORT_OUTPUT 2
#define HID_REPORT_FEATURE 3
// CDC (communication class device)
#define CDC_SET_LINE_CODING 0x20
#define CDC_GET_LINE_CODING 0x21
#define CDC_SET_CONTROL_LINE_STATE 0x22
// HID feature selectors
#define DEVICE_REMOTE_WAKEUP 1
#define ENDPOINT_HALT 0
#define TEST_MODE 2
/*------------------------------------------------------------------*
* Keyboard descriptor setting
*------------------------------------------------------------------*/
#define KBD_INTERFACE 0
#define KBD_ENDPOINT 1
#define KBD_SIZE 8
#define KBD_BUFFER EP_SINGLE_BUFFER
#define KBD_REPORT_KEYS (KBD_SIZE - 2)
// secondary keyboard
#ifdef NKRO_ENABLE
# define KBD2_INTERFACE 4
# define KBD2_ENDPOINT 5
# define KBD2_SIZE 16
# define KBD2_BUFFER EP_DOUBLE_BUFFER
# define KBD2_REPORT_KEYS (KBD2_SIZE - 1)
#endif
#endif
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