-/* Copyright (C) 2011 by Jacob Alexander
- *
+/* Copyright (C) 2011-2014 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
* THE SOFTWARE.
*/
-#include <avr/io.h>
-#include <avr/pgmspace.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include "usb_keyboard.h"
+// ----- Includes -----
+// Compiler Includes
+#include <Lib/MainLib.h>
+
+// Project Includes
+#include <macro.h>
+#include <scan_loop.h>
+#include <output_com.h>
+
+#include <cli.h>
+#include <led.h>
+#include <print.h>
+
+
+
+// ----- Defines -----
+
+// Verified Keypress Defines
+#define USB_TRANSFER_DIVIDER 10 // 1024 == 1 Send of keypresses per second, 1 == 1 Send of keypresses per ~1 millisecond
+
+
+
+// ----- Macros -----
+#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_)
#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#endif
-int main()
+
+
+// ----- Function Declarations -----
+
+
+
+// ----- Variables -----
+
+// Timer Interrupt for flagging a send of the sampled key detection data to the USB host
+uint16_t sendKeypressCounter = 0;
+
+// Flag generated by the timer interrupt
+volatile uint8_t sendKeypresses = 0;
+
+
+
+// ----- Functions -----
+
+// Initial Pin Setup, make sure they are sane
+inline void pinSetup()
{
- // set for 16 MHz clock
+
+// AVR
+#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_)
+
+ // For each pin, 0=input, 1=output
+#if defined(__AVR_AT90USB1286__)
+ DDRA = 0x00;
+#endif
+ DDRB = 0x00;
+ DDRC = 0x00;
+ DDRD = 0x00;
+ DDRE = 0x00;
+ DDRF = 0x00;
+
+
+ // Setting pins to either high or pull-up resistor
+#if defined(__AVR_AT90USB1286__)
+ PORTA = 0x00;
+#endif
+ PORTB = 0x00;
+ PORTC = 0x00;
+ PORTD = 0x00;
+ PORTE = 0x00;
+ PORTF = 0x00;
+
+// ARM
+#elif defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM
+ // TODO - Should be cleared, but not that necessary due to the pin layout
+#endif
+}
+
+
+inline void usbTimerSetup()
+{
+// AVR
+#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_)
+
+ // Setup with 16 MHz clock
CPU_PRESCALE( 0 );
+ // Setup ISR Timer for flagging a kepress send to USB
+ // Set to 256 * 1024 (8 bit timer with Clock/1024 prescalar) timer
+ TCCR0A = 0x00;
+ TCCR0B = 0x03;
+ TIMSK0 = (1 << TOIE0);
+
+// ARM
+#elif defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM
+ // 48 MHz clock by default
+
+ // System Clock Gating Register Disable
+ SIM_SCGC6 |= SIM_SCGC6_PIT;
+
+ // Enable Timers
+ PIT_MCR = 0x00;
+
+ // Setup ISR Timer for flagging a kepress send to USB
+ // 1 ms / (1 / 48 MHz) - 1 = 47999 cycles -> 0xBB7F
+ PIT_LDVAL0 = 0x0000BB7F;
+ PIT_TCTRL0 = 0x3; // Enable Timer 0 interrupts, and Enable Timer 0
+
+ // Insert the required vector for Timer 0
+ NVIC_ENABLE_IRQ( IRQ_PIT_CH0 );
+#endif
+}
+
+int main()
+{
// Configuring Pins
- // TODO
+ pinSetup();
+
+ // Enable CLI
+ CLI_init();
- // 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 */ ;
+ // Setup Modules
+ Output_setup();
+ Macro_setup();
+ Scan_setup();
- // 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);
+ // Setup ISR Timer for flagging a kepress send to USB
+ usbTimerSetup();
// Main Detection Loop
- // TODO
- // usb_keyboard_press(KEY_B, KEY_SHIFT);
+ while ( 1 )
+ {
+ // Process CLI
+ CLI_process();
+
+ // Acquire Key Indices
+ // Loop continuously until scan_loop returns 0
+ cli();
+ while ( Scan_loop() );
+ sei();
+
+ // Run Macros over Key Indices and convert to USB Keys
+ Macro_process();
+
+ // Send keypresses over USB if the ISR has signalled that it's time
+ if ( !sendKeypresses )
+ continue;
+
+ // Send USB Data
+ Output_send();
+
+ // Clear sendKeypresses Flag
+ sendKeypresses = 0;
+ }
}
+
+// ----- Interrupts -----
+
+// USB Keyboard Data Send Counter Interrupt
+#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
+ISR( TIMER0_OVF_vect )
+#elif defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM
+void pit0_isr()
+#endif
+{
+ sendKeypressCounter++;
+ if ( sendKeypressCounter > USB_TRANSFER_DIVIDER ) {
+ sendKeypressCounter = 0;
+ sendKeypresses = 1;
+ }
+
+#if defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM
+ // Clear the interrupt flag
+ PIT_TFLG0 = 1;
+#endif
+}
+
+
+// ----- CLI Command Functions -----
+
+
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