- Code should be working, but much is untested - All of the old modules will need to update and use the new DefaultMap keymap - There might still be some naming conflicts with some Scan Modules
231 řádky
5.5 KiB
C
231 řádky
5.5 KiB
C
/* Copyright (C) 2011,2014 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/ScanLib.h>
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// Project Includes
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#include <led.h>
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#include <print.h>
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// Local Includes
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#include "scan_loop.h"
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// ----- Defines -----
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// Pinout Defines
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#define SPKR_PORT PORTD
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#define SPKR_DDR DDRD
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#define SPKR_POS 1
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#define POWR_PORT PORTC
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#define POWR_DDR DDRC
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#define POWR_POS 7
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// ----- Macros -----
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// ----- Variables -----
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// Buffer used to inform the macro processing module which keys have been detected as pressed
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volatile uint8_t KeyIndex_Buffer[KEYBOARD_BUFFER];
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volatile uint8_t KeyIndex_BufferUsed;
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// ----- Functions -----
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// Setup
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inline void Scan_setup()
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{
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// Setup the the USART interface for keyboard data input
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// Setup baud rate
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// 16 MHz / ( 16 * Baud ) = UBRR
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// Baud <- 0.10450 ms per bit, thus 1000 / 0.10450 = 9569.4
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// Thus UBRR = 104.50
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// To deal with the 0.5, setting to double speed, which means UBRR = 209
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uint16_t baud = 209; // Max setting of 4095
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UBRR1H = (uint8_t)(baud >> 8);
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UBRR1L = (uint8_t)baud;
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// Enable Double Read Speed
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UCSR1A = 0x02;
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// Enable the receiver, transitter, and RX Complete Interrupt
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UCSR1B = 0x98;
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// Set frame format: 8 data, no stop bits or parity
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// Asynchrounous USART mode
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UCSR1C = 0x06;
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// Set Speaker Pin to Pull-Up gives a low-volume click (XXX no other setting does, why?)
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SPKR_DDR &= ~(1 << SPKR_POS);
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SPKR_PORT |= (1 << SPKR_POS);
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// Set Power Pin (I've traced this back to the "Power On" Switch, but I don't really know what it's for)
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// Configured as a Pull-up Input - This pin "can" be read as well, it will go to GND when the "Power On" switch is pressed, and will read ~5V otherwise
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// XXX Currently not used by the controller
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POWR_DDR &= ~(1 << POWR_POS);
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POWR_PORT |= (1 << POWR_POS);
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// Reset the keyboard before scanning, we might be in a wierd state
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scan_resetKeyboard();
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}
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// Main Detection Loop
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// Not needed for the Sony NEWS, this is just a busy loop
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inline uint8_t Scan_loop()
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{
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return 0;
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}
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void processKeyValue( uint8_t keyValue )
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{
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// Detect release condition
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uint8_t release = keyValue & 0x80;
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// Finalize output buffer
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// Mask 8th bit
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keyValue &= 0x7F;
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// Key Release
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if ( release )
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{
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// Check for the released key, and shift the other keys lower on the buffer
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uint8_t c;
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for ( c = 0; c < KeyIndex_BufferUsed; c++ )
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{
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// Key to release found
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if ( KeyIndex_Buffer[c] == keyValue )
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{
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// Shift keys from c position
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for ( uint8_t k = c; k < KeyIndex_BufferUsed - 1; k++ )
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KeyIndex_Buffer[k] = KeyIndex_Buffer[k + 1];
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// Decrement Buffer
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KeyIndex_BufferUsed--;
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break;
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}
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}
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// Error case (no key to release)
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if ( c == KeyIndex_BufferUsed + 1 )
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{
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errorLED( 1 );
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char tmpStr[6];
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hexToStr( keyValue, tmpStr );
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erro_dPrint( "Could not find key to release: ", tmpStr );
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}
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}
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// Press or Repeated Key
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else
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{
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// Make sure the key isn't already in the buffer
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for ( uint8_t c = 0; c < KeyIndex_BufferUsed + 1; c++ )
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{
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// Key isn't in the buffer yet
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if ( c == KeyIndex_BufferUsed )
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{
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Macro_bufferAdd( keyValue );
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break;
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}
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// Key already in the buffer
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if ( KeyIndex_Buffer[c] == keyValue )
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break;
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}
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}
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}
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// USART Receive Buffer Full Interrupt
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ISR(USART1_RX_vect)
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{
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cli(); // Disable Interrupts
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uint8_t keyValue = 0x00;
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// One scancode at a time (fastest interval ~3.95 ms - recorded, should still be ok for interrupt polling)
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// Read the raw packet from the USART
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keyValue = UDR1;
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// Debug
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char tmpStr[6];
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hexToStr( keyValue, tmpStr );
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dPrintStrs( tmpStr, " " );
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// Process the scancode
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if ( keyValue != 0x00 )
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processKeyValue( keyValue );
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sei(); // Re-enable Interrupts
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}
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// Send data to keyboard
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uint8_t Scan_sendData( uint8_t dataPayload )
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{
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// Debug
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char tmpStr[6];
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hexToStr( dataPayload, tmpStr );
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info_dPrint( tmpStr, " " );
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UDR1 = dataPayload;
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return 0;
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}
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// Signal KeyIndex_Buffer that it has been properly read
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// Not needed as a signal is sent to remove key-presses
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void Scan_finishedWithBuffer( uint8_t sentKeys )
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{
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return;
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}
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// Reset/Hold keyboard TODO
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// Warning! This will cause the keyboard to not send any data, so you can't disable with a keypress
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void Scan_lockKeyboard( void )
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{
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}
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void Scan_unlockKeyboard( void )
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{
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}
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// Reset Keyboard
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void Scan_resetKeyboard( void )
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{
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// Empty buffer, now that keyboard has been reset
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KeyIndex_BufferUsed = 0;
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}
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void Scan_finishedWithUSBBuffer( uint8_t sentKeys )
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{
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return;
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}
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