96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* Copyright (C) 2011-2013 by Jacob Alexander
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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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// ----- Includes -----
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// Compiler Includes
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#include <Lib/USBLib.h>
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// Project Includes
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#include <scan_loop.h>
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// USB Includes
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#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_)
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#include "avr/usb_keyboard_debug.h"
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#elif defined(_mk20dx128_)
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#include "arm/usb_keyboard.h"
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#include "arm/usb_dev.h"
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#endif
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// Local Includes
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#include "usb_com.h"
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// ----- Variables -----
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// which modifier keys are currently pressed
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// 1=left ctrl, 2=left shift, 4=left alt, 8=left gui
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// 16=right ctrl, 32=right shift, 64=right alt, 128=right gui
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uint8_t USBKeys_Modifiers = 0;
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// which keys are currently pressed, up to 6 keys may be down at once
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uint8_t USBKeys_Array[USB_MAX_KEY_SEND] = {0,0,0,0,0,0};
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// The number of keys sent to the usb in the array
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uint8_t USBKeys_Sent;
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// 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
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volatile uint8_t USBKeys_LEDs = 0;
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// ----- Functions -----
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// USB Module Setup
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inline void usb_setup(void)
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{
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// Initialize the USB, and then wait for the host to set configuration.
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// If the Teensy is powered without a PC connected to the USB port,
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// this will wait forever.
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usb_init();
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while ( !usb_configured() ) /* wait */ ;
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// Wait an extra second for the PC's operating system to load drivers
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// and do whatever it does to actually be ready for input
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_delay_ms(1000);
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}
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// USB Data Send
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inline void usb_send(void)
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{
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// TODO undo potentially old keys
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for ( uint8_t c = USBKeys_Sent; c < USBKeys_MaxSize; c++ )
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USBKeys_Array[c] = 0;
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// Send keypresses
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usb_keyboard_send();
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// Clear modifiers and keys
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USBKeys_Modifiers = 0;
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USBKeys_Sent = 0;
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// Signal Scan Module we are finishedA
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scan_finishedWithUSBBuffer( USBKeys_Sent <= USBKeys_MaxSize ? USBKeys_Sent : USBKeys_MaxSize );
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}
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