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Tandy 1000 Converter, basicly works, except for packet mismatches

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- Caused by too much processing in the converter...
- Easy to fix if I remove the macro engine...
This commit is contained in:
Jacob Alexander 2011-10-01 00:54:18 -07:00
parent 05c20112e9
commit 46916defa5
12 changed files with 578 additions and 33 deletions
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239
Scan/Tandy1000/scan_loop.c Normal file
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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.
*/
// ----- Includes -----
// AVR Includes
#include <avr/interrupt.h>
// Project Includes
#include <led.h>
#include <print.h>
// Local Includes
#include "scan_loop.h"
// ----- Defines -----
// Pinout Defines
#define CLK_READ PIND
#define CLK_PORT PORTD
#define CLK_DDR DDRD
#define CLK_PIN 1
#define DATA_READ PIND
#define DATA_PORT PORTD
#define DATA_DDR DDRD
#define DATA_PIN 0
#define INTR_PORT PORTD
#define INTR_DDR DDRD
#define INTR_PIN 0
// ----- Macros -----
#define READ_CLK CLK_READ & (1 << CLK_PIN) ? 1 : 0
#define READ_DATA DATA_READ & (1 << DATA_PIN) ? 0 : 1
#define UNSET_INTR() INTR_DDR &= ~(1 << INTR_PIN)
#define SET_INTR() INTR_DDR |= (1 << INTR_PIN)
// ----- Variables -----
uint8_t KeyIndex_Array[KEYBOARD_SIZE + 1];
// Scan Code Retrieval Variables
uint8_t inputData = 0xFF;
uint8_t packet_index = 0;
// ----- Functions -----
// Setup
inline void scan_setup()
{
// Setup inputs
CLK_DDR &= ~(1 << CLK_PIN);
DATA_DDR &= ~(1 << DATA_PIN);
// Setup Pull-up's
CLK_PORT &= ~(1 << CLK_PIN); // (CLK)
DATA_PORT &= ~(1 << DATA_PIN); // (/DATA)
// Setup Keyboard Interrupt
INTR_DDR &= ~(1 << INTR_PIN);
INTR_PORT &= ~(1 << INTR_PIN);
/* Interrupt Style (Not working fully)
cli();
// Setup interrupt on the CLK pin TODO Better defines
EICRA |= 0x03; // Rising Edge Interrupt
EIMSK |= (1 << INT0);
// Setup interrupt on the DATA pin TODO Better defines
EICRA |= 0x08; // Falling Edge Interrupt
EIMSK |= (1 << INT1);
sei();
*/
}
// Main Detection Loop
inline uint8_t scan_loop()
{
/*
// Packet Read
if ( packet_index == 8 )
{
// Disable Error LED, proper key found
errorLED( 0 );
//#ifdef MAX_DEBUG
// Crazy Debug (Read the Scan Code)
char tmpStr[3];
hexToStr_op( inputData, tmpStr, 2 );
dPrintStrsNL( "Read Data: 0x", tmpStr );
//#endif
// - Map the scan code to the index array -
// If the 8th bit is high, remove the keypress, else, add the keypress
// The lower 7 bits are the array index
KeyIndex_Array[(inputData & 0x7F)] = (inputData & 0x80) ? 0x00 : 0x80;
// Reset Containers
packet_index = 0;
inputData = 0xFF;
}
// Bad Packet
else if ( packet_index > 8 )
{
// Signal Error
errorLED( 1 );
char tmpStr[3];
int8ToStr( packet_index, tmpStr );
erro_dPrint( "Big packet? Mismatched... ", tmpStr );
packet_index = 0;
inputData = 0xFF;
}
*/
// Disable keyboard interrupt (does nothing if already off)
UNSET_INTR();
// Read the clock 8 times
if ( READ_CLK )
{
// Mis-read packet, set back to 0
if ( packet_index == -1 )
packet_index = 0;
// Append 1 bit of data
inputData &= ~(READ_DATA << packet_index);
packet_index++;
// 8 Bits have been read
if ( packet_index == 8 )
{
// Wait till clock edge falls
while ( READ_CLK );
// Sample both lines to make sure this is not a data value
// and definitely the end of packet data blip
uint16_t badDataCounter = 0;
while ( !( READ_DATA ) && !( READ_CLK ) )
badDataCounter++;
if ( badDataCounter < 25 )
{
//#ifdef MAX_DEBUG
// Crazy Debug (Read the Scan Code)
char tmpStr[3];
hexToStr_op( inputData, tmpStr, 2 );
dbug_dPrint( "Read Data: 0x", tmpStr );
//#endif
// - Map the scan code to the index array -
// If the 8th bit is high, remove the keypress, else, add the keypress
// The lower 7 bits are the array index
KeyIndex_Array[(inputData & 0x7F)] = (inputData & 0x80) ? 0x00 : 0x80;
}
// Even though this is a mis-read packet, we still know what the value is
else
{
// Signal Error
errorLED( 1 );
char tmpStr[3];
hexToStr_op( inputData, tmpStr, 2 );
erro_dPrint( "Bad packet? Mismatched... 0x", tmpStr );
}
// Reset Containers
inputData = 0xFF;
packet_index = 0;
// Interrupt the keyboard, so we don't get packet pieces...
SET_INTR();
// Do not wait for next clock, let USB do it's thing (if desired)
return packet_index;
}
// Wait till clock edge falls
while ( READ_CLK );
}
// Interrupt keyboard if there is no pending packet
SET_INTR();
return packet_index;
}
// Detection interrupt, signalled by a clock pulse from CLK_PIN
ISR(INT0_vect)
{
//cli(); // Disable Interrupts
// Append 1 bit of data
//inputData &= ~(READ_DATA << packet_index);
packet_index++;
//sei(); // Re-enable Interrupts
}
// Data Detected
ISR(INT1_vect)
{
// Append 1 bit of data
inputData &= ~(1 << packet_index);
packet_index++;
// Disable Clk Signal (Not needed if there's a data signal)
EIFR |= (1 << INTF0);
}

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Scan/Tandy1000/scan_loop.h Normal file
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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.
*/
#ifndef __SCAN_LOOP_H
#define __SCAN_LOOP_H
// ----- Includes -----
// Compiler Includes
#include <stdint.h>
// Local Includes
// ----- Defines -----
#define KEYBOARD_SIZE 0x5A // 90 - Size of the array space for the keyboardr(max index)
// ----- Variables -----
// NOTE: Highest Bit: Valid keypress (0x80 is valid keypress)
// Other Bits: Pressed state sample counter
extern uint8_t KeyIndex_Array [KEYBOARD_SIZE + 1];
static const uint8_t KeyIndex_Size = KEYBOARD_SIZE;
// ----- Functions -----
void scan_setup( void );
uint8_t scan_loop( void );
#endif // __SCAN_LOOP_H

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Scan/Tandy1000/setup.cmake Normal file
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###| CMake Kiibohd Controller Scan Module |###
#
# Written by Jacob Alexander in 2011 for the Kiibohd Controller
#
# Released into the Public Domain
#
###
###
# Module C files
#
set( SCAN_SRCS
scan_loop.c
)
###
# Module Specific Options
#
add_definitions( -I${HEAD_DIR}/Keymap )
#| Keymap Settings
add_definitions(
-DMODIFIER_MASK=tandy1000_modifierMask
-DKEYINDEX_MASK=tandy1000_colemak
)