132 lines
4.4 KiB
C
132 lines
4.4 KiB
C
/* USB Keyboard Plus Debug Channel Example for Teensy USB Development Board
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* http://www.pjrc.com/teensy/usb_keyboard.html
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* Copyright (c) 2009 PJRC.COM, LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef USB_H
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#define USB_H 1
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#include <stdint.h>
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#include <stdbool.h>
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#include <avr/io.h>
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extern bool remote_wakeup;
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extern bool suspend;
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void usb_init(void); // initialize everything
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uint8_t usb_configured(void); // is the USB port configured
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void usb_remote_wakeup(void);
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#define EP_TYPE_CONTROL 0x00
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#define EP_TYPE_BULK_IN 0x81
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#define EP_TYPE_BULK_OUT 0x80
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#define EP_TYPE_INTERRUPT_IN 0xC1
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#define EP_TYPE_INTERRUPT_OUT 0xC0
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#define EP_TYPE_ISOCHRONOUS_IN 0x41
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#define EP_TYPE_ISOCHRONOUS_OUT 0x40
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#define EP_SINGLE_BUFFER 0x02
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#define EP_DOUBLE_BUFFER 0x06
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#define EP_SIZE(s) ((s) == 64 ? 0x30 : ((s) == 32 ? 0x20 : ((s) == 16 ? 0x10 : 0x00)))
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#if defined(__AVR_AT90USB162__) || defined(__AVR_AT90USB82__)
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# define MAX_ENDPOINT 4
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# define UERST_MASK 0x1E
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#else
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# define MAX_ENDPOINT 6
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# define UERST_MASK 0x7E
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#endif
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#define LSB(n) (n & 255)
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#define MSB(n) ((n >> 8) & 255)
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#if defined(__AVR_AT90USB162__)
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# define HW_CONFIG()
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# define PLL_CONFIG() (PLLCSR = ((1 << PLLE) | (1 << PLLP0)))
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# define USB_CONFIG() (USBCON = (1 << USBE))
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# define USB_FREEZE() (USBCON = ((1 << USBE) | (1 << FRZCLK)))
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#elif defined(__AVR_ATmega32U4__)
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# define HW_CONFIG() (UHWCON = 0x01)
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# define PLL_CONFIG() (PLLCSR = 0x12)
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# define USB_CONFIG() (USBCON = ((1 << USBE) | (1 << OTGPADE)))
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# define USB_FREEZE() (USBCON = ((1 << USBE) | (1 << FRZCLK)))
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#elif defined(__AVR_AT90USB646__)
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# define HW_CONFIG() (UHWCON = 0x81)
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# define PLL_CONFIG() (PLLCSR = 0x1A)
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# define USB_CONFIG() (USBCON = ((1 << USBE) | (1 << OTGPADE)))
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# define USB_FREEZE() (USBCON = ((1 << USBE) | (1 << FRZCLK)))
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#elif defined(__AVR_AT90USB1286__)
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# define HW_CONFIG() (UHWCON = 0x81)
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# define PLL_CONFIG() (PLLCSR = 0x16)
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# define USB_CONFIG() (USBCON = ((1 << USBE) | (1 << OTGPADE)))
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# define USB_FREEZE() (USBCON = ((1 << USBE) | (1 << FRZCLK)))
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#endif
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// standard control endpoint request types
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#define GET_STATUS 0
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#define CLEAR_FEATURE 1
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#define SET_FEATURE 3
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#define SET_ADDRESS 5
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#define GET_DESCRIPTOR 6
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#define GET_CONFIGURATION 8
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#define SET_CONFIGURATION 9
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#define GET_INTERFACE 10
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#define SET_INTERFACE 11
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// HID (human interface device)
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#define HID_GET_REPORT 1
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#define HID_GET_IDLE 2
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#define HID_GET_PROTOCOL 3
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#define HID_SET_REPORT 9
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#define HID_SET_IDLE 10
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#define HID_SET_PROTOCOL 11
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#define HID_REPORT_INPUT 1
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#define HID_REPORT_OUTPUT 2
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#define HID_REPORT_FEATURE 3
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// CDC (communication class device)
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#define CDC_SET_LINE_CODING 0x20
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#define CDC_GET_LINE_CODING 0x21
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#define CDC_SET_CONTROL_LINE_STATE 0x22
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// HID feature selectors
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#define DEVICE_REMOTE_WAKEUP 1
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#define ENDPOINT_HALT 0
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#define TEST_MODE 2
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/*------------------------------------------------------------------*
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* Keyboard descriptor setting
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*------------------------------------------------------------------*/
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#define KBD_INTERFACE 0
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#define KBD_ENDPOINT 1
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#define KBD_SIZE 8
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#define KBD_BUFFER EP_SINGLE_BUFFER
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#define KBD_REPORT_KEYS (KBD_SIZE - 2)
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// secondary keyboard
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#ifdef NKRO_ENABLE
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# define KBD2_INTERFACE 4
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# define KBD2_ENDPOINT 5
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# define KBD2_SIZE 16
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# define KBD2_BUFFER EP_DOUBLE_BUFFER
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# define KBD2_REPORT_KEYS (KBD2_SIZE - 1)
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#endif
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#endif
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