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- /* Copyright (C) 2011 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.
- */
-
- #include <avr/io.h>
- #include <avr/pgmspace.h>
- #include <avr/interrupt.h>
- #include <util/delay.h>
- #include "usb_keyboard.h"
-
- #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
-
- #define PRE_DRIVE_SLEEP
- #define POST_DRIVE_SLEEP
-
-
- #define DRIVE_reg_1 PORTB
- #define DRIVE_reg_2 PORTB
- #define DRIVE_reg_3 PORTB
- #define DRIVE_reg_4 PORTC
- #define DRIVE_reg_5 PORTE
- #define DRIVE_reg_6 PORTE
- #define DRIVE_reg_7 PORTF
- #define DRIVE_reg_8 PORTF
- #define DRIVE_reg_9 PORTF
- #define DRIVE_reg_10 <blank>
- #define DRIVE_reg_11 <blank>
- #define DRIVE_reg_12 <blank>
-
- #define DRIVE_pin_1 0
- #define DRIVE_pin_2 1
- #define DRIVE_pin_3 2
- #define DRIVE_pin_4 7
- #define DRIVE_pin_5 6
- #define DRIVE_pin_6 7
- #define DRIVE_pin_7 0
- #define DRIVE_pin_8 4
- #define DRIVE_pin_9 5
- #define DRIVE_pin_10 <blank>
- #define DRIVE_pin_11 <blank>
- #define DRIVE_pin_12 <blank>
-
- #define DETECT_group_1 0
- #define DETECT_group_2 0
- #define DETECT_group_3 0
- #define DETECT_group_4 0
- #define DETECT_group_5 0
- #define DETECT_group_6 0
- #define DETECT_group_7 0
- #define DETECT_group_8 0
- #define DETECT_group_9 0
- #define DETECT_group_10 <blank>
- #define DETECT_group_11 <blank>
- #define DETECT_group_12 <blank>
-
- // Change number of ORDs if number of lines differ
- #define DD_LOOP \
- for ( int c = 0;; c++ ) { \
- switch ( c ) { \
- DD_CASE_ORD(1) \
- DD_CASE_ORD(2) \
- DD_CASE_ORD(3) \
- DD_CASE_ORD(4) \
- DD_CASE_ORD(5) \
- DD_CASE_ORD(6) \
- DD_CASE_ORD(7) \
- DD_CASE_ORD(8) \
- DD_CASE_END(9,c) \
- } \
- }
-
- #define DRIVE_DETECT(reg,pin,group) \
- reg |= (1 << pin);\
- detection(group);\
- reg &= (0 << pin);
-
- #define DD_CASE(number) \
- case number:\
- DRIVE_DETECT(DRIVE_reg##_##number, DRIVE_pin##_##number, DETECT_group##_##number)
-
- #define DD_CASE_ORD(number) \
- DD_CASE(number) \
- break;
-
- #define DD_CASE_END(number,var) \
- DD_CASE(number) \
- default: \
- var = -1; \
- break;
-
- int main(void)
- {
- // set for 16 MHz clock
- CPU_PRESCALE( 0 );
-
- // Configuring Pins
-
- // TODO
-
- // 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);
-
- // Main Detection Loop
- DD_LOOP
-
- // usb_keyboard_press(KEY_B, KEY_SHIFT);
- return 0;
- }
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