9d423a64a8
- 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
567 lines
13 KiB
C
567 lines
13 KiB
C
/* 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
|
|
* 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/ScanLib.h>
|
|
|
|
// Project Includes
|
|
#include <led.h>
|
|
#include <print.h>
|
|
|
|
// Local Includes
|
|
#include "scan_loop.h"
|
|
|
|
|
|
|
|
// ----- Defines -----
|
|
|
|
// Pinout Defines
|
|
#define CLOCK_PORT PORTB
|
|
#define CLOCK_DDR DDRB
|
|
#define CLOCK_PIN 0
|
|
|
|
|
|
// ----- Macros -----
|
|
|
|
#define setLED(id, status) \
|
|
status = status ? 0 : 1; \
|
|
scan_setLED( id, status )
|
|
|
|
|
|
|
|
// ----- Variables -----
|
|
|
|
// Buffer used to inform the macro processing module which keys have been detected as pressed
|
|
volatile uint8_t KeyIndex_Buffer[KEYBOARD_BUFFER];
|
|
volatile uint8_t KeyIndex_BufferUsed;
|
|
|
|
volatile uint8_t currentWaveState = 0;
|
|
|
|
volatile uint8_t calcLED = 0;
|
|
volatile uint8_t insertLED = 0;
|
|
volatile uint8_t shiftLockLED = 0;
|
|
volatile uint8_t schedLED = 0;
|
|
volatile uint8_t drawLED = 0;
|
|
|
|
|
|
|
|
// ----- Function Declarations -----
|
|
|
|
void Scan_diagnostics( void );
|
|
void processKeyValue( uint8_t keyValue );
|
|
void Scan_diagnostics( void );
|
|
void Scan_setRepeatStart( uint8_t n );
|
|
void Scan_readSwitchStatus( void );
|
|
void Scan_repeatControl( uint8_t on );
|
|
void Scan_enableKeyboard( uint8_t enable );
|
|
void Scan_setRepeatRate( uint8_t n );
|
|
void Scan_setLED( uint8_t ledNumber, uint8_t on );
|
|
void Scan_readLED( void );
|
|
|
|
|
|
|
|
// ----- Interrupt Functions -----
|
|
|
|
// Generates a constant external clock
|
|
ISR( TIMER1_COMPA_vect )
|
|
{
|
|
if ( currentWaveState )
|
|
{
|
|
CLOCK_PORT &= ~(1 << CLOCK_PIN);
|
|
currentWaveState--;
|
|
}
|
|
else
|
|
{
|
|
CLOCK_PORT |= (1 << CLOCK_PIN);
|
|
currentWaveState++;
|
|
}
|
|
}
|
|
|
|
// USART Receive Buffer Full Interrupt
|
|
ISR(USART1_RX_vect)
|
|
{
|
|
cli(); // Disable Interrupts
|
|
|
|
uint8_t keyValue = 0x00;
|
|
|
|
// Read the raw packet from the USART
|
|
keyValue = UDR1;
|
|
|
|
// Debug
|
|
char tmpStr[6];
|
|
hexToStr( keyValue, tmpStr );
|
|
dPrintStrs( tmpStr, " " );
|
|
|
|
// Process the scancode
|
|
if ( keyValue != 0x00 )
|
|
processKeyValue( keyValue );
|
|
|
|
sei(); // Re-enable Interrupts
|
|
}
|
|
|
|
|
|
|
|
// ----- Functions -----
|
|
|
|
// Setup
|
|
inline void Scan_setup()
|
|
{
|
|
// Setup Timer Pulse (16 bit)
|
|
// 16 MHz / (2 * Prescaler * (1 + OCR1A)) = 1204.8 baud (820 us)
|
|
// Prescaler is 1
|
|
/*
|
|
TCCR1B = 0x09;
|
|
OCR1AH = 0x19;
|
|
OCR1AL = 0xEF;
|
|
TIMSK1 = (1 << OCIE1A);
|
|
CLOCK_DDR = (1 << CLOCK_PIN);
|
|
*/
|
|
// 16 MHz / (2 * Prescaler * (1 + OCR1A)) = 1200.1 baud
|
|
// Prescaler is 1
|
|
// Twice every 1200 baud (actually 1200.1, timer isn't accurate enough)
|
|
// This is close to 820 us, but a bit slower
|
|
cli();
|
|
TCCR1B = 0x09;
|
|
OCR1AH = 0x1A;
|
|
OCR1AL = 0x09;
|
|
TIMSK1 = (1 << OCIE1A);
|
|
CLOCK_DDR = (1 << CLOCK_PIN);
|
|
|
|
|
|
// Setup the the USART interface for keyboard data input
|
|
|
|
// Setup baud rate
|
|
// 16 MHz / ( 16 * Baud ) = UBRR
|
|
// Baud <- 1200 as per the spec (see datasheet archives), rounding to 1200.1 (as that's as accurate as the timer can be)
|
|
// Thus UBRR = 833.26 -> round to 833
|
|
uint16_t baud = 833; // Max setting of 4095
|
|
UBRR1H = (uint8_t)(baud >> 8);
|
|
UBRR1L = (uint8_t)baud;
|
|
|
|
// Enable the receiver, transitter, and RX Complete Interrupt
|
|
UCSR1B = 0x98;
|
|
|
|
// Set frame format: 8 data, no stop bits or parity
|
|
// Synchrounous USART mode
|
|
// Tx Data on Falling Edge, Rx on Rising
|
|
UCSR1C = 0x47;
|
|
sei();
|
|
|
|
// Reset the keyboard before scanning, we might be in a wierd state
|
|
_delay_ms( 50 );
|
|
scan_resetKeyboard();
|
|
|
|
_delay_ms( 5000 ); // Wait for the reset command to finish enough for new settings to take hold afterwards
|
|
scan_setRepeatRate( 0x00 ); // Set the fastest repeat rate
|
|
}
|
|
|
|
|
|
// Main Detection Loop
|
|
// Nothing is required here with the Epson QX-10 Keyboards as the interrupts take care of the inputs
|
|
inline uint8_t Scan_loop()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// TODO
|
|
void processKeyValue( uint8_t keyValue )
|
|
{
|
|
// Detect LED Status
|
|
uint8_t inputType = keyValue & 0xC0;
|
|
|
|
// Determine the input type
|
|
switch ( inputType )
|
|
{
|
|
// LED Status
|
|
case 0xC0:
|
|
// Binary Representation: 1100 llln
|
|
// Hex Range: 0xC0 to 0xCF
|
|
// - First 3 bits determine which LED (0 to 7)
|
|
// - Last bit is whether the LED is On (1) or Off (0)
|
|
// 000 - N/A (A)
|
|
// 001 - N/A (B)
|
|
// 010 - INSERT
|
|
// 011 - SHIFT LOCK
|
|
// 100 - N/A (C)
|
|
// 101 - DRAW
|
|
// 110 - SCHED
|
|
// 111 - CALC
|
|
break;
|
|
|
|
// SW (Switch) Status
|
|
case 0x80:
|
|
{
|
|
// Binary Representation: 1000 dddn
|
|
// Hex Range: 0x80 to 0x8F
|
|
// - First 3 bits determine which DB (KRTN) (See datasheet)
|
|
// - Last bit is whether the key is enabled
|
|
// 000 - N/A?
|
|
// 001 - N/A?
|
|
// 010 - Right SHIFT
|
|
// 011 - Left SHIFT
|
|
// 100 - N/A?
|
|
// 101 - Left CTRL
|
|
// 110 - GRPH SHIFT
|
|
// 111 - Right CTRL
|
|
|
|
// Detect Modifier Press/Release
|
|
uint8_t press = keyValue & 0x01;
|
|
|
|
// Modifier Press Detected
|
|
if ( press )
|
|
{
|
|
// Make sure the key isn't already in the buffer
|
|
for ( uint8_t c = 0; c < KeyIndex_BufferUsed + 1; c++ )
|
|
{
|
|
// Key isn't in the buffer yet
|
|
if ( c == KeyIndex_BufferUsed )
|
|
{
|
|
Macro_bufferAdd( keyValue );
|
|
break;
|
|
}
|
|
|
|
// Key already in the buffer
|
|
if ( KeyIndex_Buffer[c] == keyValue )
|
|
break;
|
|
}
|
|
}
|
|
// Modifier Release Detected
|
|
else
|
|
{
|
|
uint8_t actualKeyValue = keyValue | 0x01;
|
|
|
|
// Check for the released key, and shift the other keys lower on the buffer
|
|
uint8_t c;
|
|
for ( c = 0; c < KeyIndex_BufferUsed; c++ )
|
|
{
|
|
// Key to release found
|
|
if ( KeyIndex_Buffer[c] == actualKeyValue )
|
|
{
|
|
// Shift keys from c position
|
|
for ( uint8_t k = c; k < KeyIndex_BufferUsed - 1; k++ )
|
|
KeyIndex_Buffer[k] = KeyIndex_Buffer[k + 1];
|
|
|
|
// Decrement Buffer
|
|
KeyIndex_BufferUsed--;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Error case (no key to release)
|
|
if ( c == KeyIndex_BufferUsed + 1 )
|
|
{
|
|
errorLED( 1 );
|
|
char tmpStr[6];
|
|
hexToStr( keyValue, tmpStr );
|
|
erro_dPrint( "Could not find key to release: ", tmpStr );
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Key code
|
|
default:
|
|
// Binary Representation: 0ddd pppp
|
|
// Hex Range: 0x00 to 0x7F
|
|
// - First 3 bits determine which DB (KRTN) (See datasheet)
|
|
// - Last 4 bits corresond to the KSC signals (P13, P12, P11, P10 respectively)
|
|
// Or, that can be read as, each key has it's own keycode (with NO release code)
|
|
// Modifiers are treated differently
|
|
|
|
// Add the key to the buffer, if it isn't already in the current Key Buffer
|
|
for ( uint8_t c = 0; c < KeyIndex_BufferUsed + 1; c++ )
|
|
{
|
|
// Key isn't in the buffer yet
|
|
if ( c == KeyIndex_BufferUsed )
|
|
{
|
|
Macro_bufferAdd( keyValue );
|
|
break;
|
|
}
|
|
|
|
// Key already in the buffer
|
|
if ( KeyIndex_Buffer[c] == keyValue )
|
|
break;
|
|
}
|
|
// Special Internal Key Mapping/Functions
|
|
switch ( keyValue )
|
|
{
|
|
// LED Test
|
|
case 0x0A: // CALC
|
|
setLED( 0x07, calcLED ); // 0x4F
|
|
break;
|
|
case 0x0B: // SCHED
|
|
setLED( 0x0E, schedLED ); // 0x5D
|
|
break;
|
|
case 0x0C: // DRAW
|
|
setLED( 0x0D, drawLED ); // 0x5B
|
|
break;
|
|
case 0x42: // SHIFT LOCK
|
|
setLED( 0x0B, shiftLockLED ); // 0x57
|
|
break;
|
|
case 0x5E: // INSERT
|
|
setLED( 0x02, insertLED ); // 0x45
|
|
break;
|
|
|
|
/*
|
|
// TEST
|
|
case 0x51:
|
|
scan_resetKeyboard();
|
|
break;
|
|
case 0x52:
|
|
scan_diagnostics();
|
|
break;
|
|
case 0x53:
|
|
scan_setRepeatStart( 0x00 );
|
|
break;
|
|
case 0x54:
|
|
scan_readSwitchStatus();
|
|
break;
|
|
case 0x55:
|
|
scan_repeatControl( 0x00 );
|
|
break;
|
|
case 0x56:
|
|
scan_repeatControl( 0x01 );
|
|
break;
|
|
case 0x57:
|
|
scan_enableKeyboard( 0x00 );
|
|
break;
|
|
case 0x58:
|
|
scan_enableKeyboard( 0x01 );
|
|
break;
|
|
case 0x59:
|
|
scan_setRepeatRate( 0x00 );
|
|
break;
|
|
case 0x5A:
|
|
scan_readLED();
|
|
break;
|
|
*/
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Send data
|
|
// See below functions for the input sequences for the Epson QX-10 Keyboard
|
|
uint8_t Scan_sendData( uint8_t dataPayload )
|
|
{
|
|
// Debug
|
|
char tmpStr[6];
|
|
hexToStr( dataPayload, tmpStr );
|
|
info_dPrint( tmpStr, " " );
|
|
|
|
UDR1 = dataPayload;
|
|
return 0;
|
|
}
|
|
|
|
// Signal KeyIndex_Buffer that it has been properly read
|
|
inline void Scan_finishedWithBuffer( uint8_t sentKeys )
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Signal that the keys have been properly sent over USB
|
|
// For the Epson QX-10 only the modifier keys have release signals
|
|
// Therefore, only 5 keys could possibly be assigned as a modifiers
|
|
// The rest of the keys are single press (like the Kaypro keyboards)
|
|
//
|
|
// However, this differentiation causes complications on how the key signals are discarded and used
|
|
// The single keypresses must be discarded immediately, while the modifiers must be kept
|
|
inline void Scan_finishedWithUSBBuffer( uint8_t sentKeys )
|
|
{
|
|
uint8_t foundModifiers = 0;
|
|
|
|
// Look for all of the modifiers present, there is a max of 8 (but only keys for 5 on the HASCI version)
|
|
for ( uint8_t c = 0; c < KeyIndex_BufferUsed; c++ )
|
|
{
|
|
// The modifier range is from 0x80 to 0x8F (well, the last bit is the ON/OFF signal, but whatever...)
|
|
if ( KeyIndex_Buffer[c] <= 0x8F && KeyIndex_Buffer[c] >= 0x80 )
|
|
{
|
|
// Add the modifier back into the the Key Buffer
|
|
KeyIndex_Buffer[foundModifiers] = KeyIndex_Buffer[c];
|
|
foundModifiers++;
|
|
}
|
|
}
|
|
|
|
// Adjust the size of the new Key Buffer
|
|
KeyIndex_BufferUsed = foundModifiers;
|
|
|
|
/* Non-working, too slow (too much traffic on the bus)
|
|
// Poll the modifiers using an input command
|
|
uint8_t oldBuffer = KeyIndex_BufferUsed;
|
|
KeyIndex_BufferUsed = 0;
|
|
if ( oldBuffer )
|
|
scan_readSwitchStatus();
|
|
*/
|
|
}
|
|
|
|
// Reset/Hold keyboard
|
|
// Warning! This will cause the keyboard to not send any data, so you can't disable with a keypress
|
|
// The Epson QX-10 Keyboards have a command used to lock the keyboard output
|
|
void Scan_lockKeyboard( void )
|
|
{
|
|
scan_enableKeyboard( 0x00 );
|
|
}
|
|
|
|
void Scan_unlockKeyboard( void )
|
|
{
|
|
scan_enableKeyboard( 0x01 );
|
|
}
|
|
|
|
// Reset Keyboard
|
|
// Does the following
|
|
// - Clears the keycode buffer (32 characters)
|
|
// - Validates repeat function (what does this do?)
|
|
// - Sets repeat start time (500 ms)
|
|
// - Sets repeat interval (50 ms)
|
|
// - Turns off all LEDs
|
|
void Scan_resetKeyboard( void )
|
|
{
|
|
// Reset command for the QX-10 Keyboard
|
|
scan_sendData( 0xE0 );
|
|
|
|
// Empty buffer, now that keyboard has been reset
|
|
KeyIndex_BufferUsed = 0;
|
|
}
|
|
|
|
// TODO Check
|
|
// Runs Diagnostics on the keyboard
|
|
// - First does a reset (see Scan_resetKeyboard)
|
|
// - Blinks all of the LEDs one after another
|
|
// - Outputs 0x00 if no keys are pressed
|
|
// - Outputs 0xFF if any keys are being pressed
|
|
void Scan_diagnostics( void )
|
|
{
|
|
// Send reset command with diagnositics
|
|
scan_sendData( 0xE7 );
|
|
}
|
|
|
|
// TODO Check
|
|
// Set Repeat Interval Start
|
|
// 300 ms + n * 25 ms
|
|
// Interval after which to start the repeated keys
|
|
void Scan_setRepeatStart( uint8_t n )
|
|
{
|
|
// Send command
|
|
// Binary Representation: 000n nnnn
|
|
// Hex boundaries 0x00 to 0x1F
|
|
// 300 ms to 1075 ms (intervals of 25 ms)
|
|
scan_sendData( n );
|
|
}
|
|
|
|
// Read Switch Status (preferential to actual keypress outputs)
|
|
// 000 - N/A?
|
|
// 001 - N/A?
|
|
// 010 - Right SHIFT
|
|
// 011 - Left SHIFT
|
|
// 100 - N/A?
|
|
// 101 - Left CTRL
|
|
// 110 - GRPH SHIFT
|
|
// 111 - Right CTRL
|
|
void Scan_readSwitchStatus( void )
|
|
{
|
|
scan_sendData( 0x80 );
|
|
}
|
|
|
|
// TODO Check
|
|
// Repeat Control
|
|
// 0x00 Stops repeat function
|
|
// 0x01 Enables repeat function
|
|
void Scan_repeatControl( uint8_t on )
|
|
{
|
|
// Send command
|
|
// Binary Representation: 101X XXXn
|
|
// Hex options: 0xA0 or 0xA1
|
|
scan_sendData( 0xA0 | on );
|
|
}
|
|
|
|
// TODO Check
|
|
// Enable Sending Keyboard Data
|
|
// 0x00 Stops keycode transmission
|
|
// 0x01 Enables keycode transmission
|
|
void Scan_enableKeyboard( uint8_t enable )
|
|
{
|
|
// Send command
|
|
// Binary Representation: 110X XXXn
|
|
// Hex options: 0xC0 or 0xC1
|
|
scan_sendData( 0xC0 | enable );
|
|
}
|
|
|
|
// Set Repeat Interval
|
|
// 30 ms + n * 5 ms
|
|
// Period between sending each repeated key after the initial interval
|
|
void Scan_setRepeatRate( uint8_t n )
|
|
{
|
|
// Send command
|
|
// Binary Representation: 001n nnnn
|
|
// Hex options: 0x00 to 0x1F
|
|
// 30 ms to 185 ms (intervals of 5 ms)
|
|
scan_sendData( 0x20 | n );
|
|
}
|
|
|
|
// Turn On/Off LED
|
|
// 0x00 LED Off
|
|
// 0x01 LED On
|
|
//
|
|
// 8 LEDs max (Note: 5 connected on my board, there is 1 position empty on the PCB for a total of 6)
|
|
// 0 to 7 (0x0 to 0x7)
|
|
void Scan_setLED( uint8_t ledNumber, uint8_t on )
|
|
{
|
|
// Send command
|
|
// Binary Representation: 010l llln
|
|
// Hex options: 0x40 to 0x4F
|
|
// The spec is NOT accurate (especially about the "don't care" bit)
|
|
// llll n - Usage
|
|
// 0000 X - N/A (1)
|
|
// 0001 X - N/A (2)
|
|
// 0010 1 - INSERT On
|
|
// 0011 0 - SHIFT LOCK Off
|
|
// 0100 X - N/A (3)
|
|
// 0101 0 - DRAW Off
|
|
// 0110 0 - SCHED Off
|
|
// 0111 1 - CALC On
|
|
// 1000 X - N/A (1)
|
|
// 1001 X - N/A (2)
|
|
// 1010 0 - INSERT Off
|
|
// 1011 1 - SHIFT LOCK On
|
|
// 1100 X - N/A (3)
|
|
// 1101 1 - DRAW On
|
|
// 1110 1 - SCHED On
|
|
// 1111 0 - CALC Off
|
|
|
|
uint8_t off = 0;
|
|
if ( !on )
|
|
{
|
|
off = 0x10;
|
|
}
|
|
scan_sendData( ( 0x40 | (ledNumber << 1) | on ) ^ off );
|
|
}
|
|
|
|
// Read LED Status
|
|
// High priority data output (may overwrite some keycode data)
|
|
void Scan_readLED( void )
|
|
{
|
|
scan_sendData( 0x7F );
|
|
}
|
|
|