-/* Copyright (C) 2011-2013 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
#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
-
-
-
-// ----- 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;
-
+extern volatile uint32_t systick_millis_count;
// ----- Functions -----
-// Initial Pin Setup, make sure they are sane
-inline void pinSetup(void)
-{
-
-// 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_)
- // TODO - Should be cleared, but not that necessary due to the pin layout
-#endif
-}
-
-
-inline void usbTimerSetup(void)
+int main()
{
-// AVR
+ // AVR - Teensy Set Clock speed to 16 MHz
#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_)
- // 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 );
+ CLKPR = 0x80;
+ CLKPR = 0x00;
#endif
-}
-
-
-int main(void)
-{
- // Configuring Pins
- pinSetup();
- init_errorLED();
-
- // Setup Output Module
- output_setup();
// Enable CLI
- init_cli();
+ CLI_init();
- // Setup ISR Timer for flagging a kepress send to USB
- usbTimerSetup();
+ // Setup Modules
+ Output_setup();
+ Macro_setup();
+ Scan_setup();
// Main Detection Loop
- uint8_t ledTimer = F_CPU / 1000000; // Enable LED for a short time
while ( 1 )
{
- // Setup the scanning module
- scan_setup();
-
- while ( 1 )
- {
- // 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
- process_macros();
+ // Process CLI
+ CLI_process();
- // Send keypresses over USB if the ISR has signalled that it's time
- if ( !sendKeypresses )
- continue;
+ // Acquire Key Indices
+ // Loop continuously until scan_loop returns 0
+ cli();
+ while ( Scan_loop() );
+ sei();
- // Send USB Data
- usb_send();
+ // Run Macros over Key Indices and convert to USB Keys
+ Macro_process();
- // Clear sendKeypresses Flag
- sendKeypresses = 0;
-
- // Indicate Error, if valid
- errorLED( ledTimer );
-
- if ( ledTimer > 0 )
- ledTimer--;
- }
-
- // Loop should never get here (indicate error)
- ledTimer = 255;
-
- // HID Debug Error message
- erro_print("Detection loop error, this is very bad...bug report!");
+ // Sends USB data only if changed
+ Output_send();
}
}
-
-// ----- Interrupts -----
-
-// USB Keyboard Data Send Counter Interrupt
-#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
-ISR( TIMER0_OVF_vect )
-#elif defined(_mk20dx128_) // ARM
-void pit0_isr(void)
-#endif
-{
- sendKeypressCounter++;
- if ( sendKeypressCounter > USB_TRANSFER_DIVIDER ) {
- sendKeypressCounter = 0;
- sendKeypresses = 1;
- }
-
-#if defined(_mk20dx128_) // ARM
- // Clear the interrupt flag
- PIT_TFLG0 = 1;
-#endif
-}
-
projects / kiibohd-controller.git / blobdiff