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- /* Copyright (C) 2011-2013 by Jacob Alexander
- *
- * 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.
- */
-
- // ----- Includes -----
-
- // Compiler Includes
- #include <Lib/USBLib.h>
-
- // Project Includes
- #include <scan_loop.h>
-
- // USB Includes
- #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_)
- #include "avr/usb_keyboard_debug.h"
- #elif defined(_mk20dx128_)
- #include "arm/usb_keyboard.h"
- #include "arm/usb_dev.h"
- #endif
-
- // Local Includes
- #include "usb_com.h"
-
-
-
- // ----- Variables -----
-
- // which modifier keys are currently pressed
- // 1=left ctrl, 2=left shift, 4=left alt, 8=left gui
- // 16=right ctrl, 32=right shift, 64=right alt, 128=right gui
- uint8_t USBKeys_Modifiers = 0;
-
- // which keys are currently pressed, up to 6 keys may be down at once
- uint8_t USBKeys_Array[USB_MAX_KEY_SEND] = {0,0,0,0,0,0};
-
- // The number of keys sent to the usb in the array
- uint8_t USBKeys_Sent;
-
- // 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
- volatile uint8_t USBKeys_LEDs = 0;
-
- // protocol setting from the host. We use exactly the same report
- // either way, so this variable only stores the setting since we
- // are required to be able to report which setting is in use.
- uint8_t USBKeys_Protocol = 1;
-
- // the idle configuration, how often we send the report to the
- // host (ms * 4) even when it hasn't changed
- uint8_t USBKeys_Idle_Config = 125;
-
- // count until idle timeout
- uint8_t USBKeys_Idle_Count = 0;
-
-
-
- // ----- Functions -----
-
- // USB Module Setup
- inline void usb_setup(void)
- {
- // Initialize the USB, and then wait for the host to set configuration.
- // If the Teensy is powered without a PC connected to the USB port,
- // this will wait forever.
- usb_init();
- while ( !usb_configured() ) /* wait */ ;
-
- // Wait an extra second for the PC's operating system to load drivers
- // and do whatever it does to actually be ready for input
- _delay_ms(1000);
- }
-
-
- // USB Data Send
- inline void usb_send(void)
- {
- // TODO undo potentially old keys
- for ( uint8_t c = USBKeys_Sent; c < USBKeys_MaxSize; c++ )
- USBKeys_Array[c] = 0;
-
- // Send keypresses
- usb_keyboard_send();
-
- // Clear modifiers and keys
- USBKeys_Modifiers = 0;
- USBKeys_Sent = 0;
-
- // Signal Scan Module we are finishedA
- scan_finishedWithUSBBuffer( USBKeys_Sent <= USBKeys_MaxSize ? USBKeys_Sent : USBKeys_MaxSize );
- }
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