MBC-55x support virtually complete.
- I won't do any more, as I can't make the converter fully functional on a modern computer - Basic typing support is working - Some of the function modes move around the ASCII values, and this takes a while to decipher and figure out the pattern; it's not hard to do, and I don't really feel like doing it - The hard part is already done :P
This commit is contained in:
Jacob Alexander
parent
adc0f9d450
commit
473e3359f4
4 changed files with 707 additions and 61 deletions
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@ -72,25 +72,26 @@ void uart0_status_isr(void)
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cli(); // Disable Interrupts
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// Variable for UART data read
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uint8_t tmp = 0x00;
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uint8_t keyValue = 0x00;
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#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
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tmp = UDR1;
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keyValue = UDR1;
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#elif defined(_mk20dx128_) // ARM
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// UART0_S1 must be read for the interrupt to be cleared
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if ( UART0_S1 & UART_S1_RDRF )
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{
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// Only doing single byte FIFO here
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tmp = UART0_D;
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keyValue = UART0_D;
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}
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#endif
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// Debug
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char tmpStr[6];
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hexToStr( tmp, tmpStr );
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hexToStr( keyValue, tmpStr );
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dPrintStrs( tmpStr, " " ); // Debug
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// TODO
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// Decipher scan value
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processKeyValue( keyValue );
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sei(); // Re-enable Interrupts
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}
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@ -113,14 +114,12 @@ inline void scan_setup()
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UBRR1H = (uint8_t)(baud >> 8);
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UBRR1L = (uint8_t)baud;
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// Enable the receiver, transmitter, and RX Complete Interrupt
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// TODO - Only receiver, and rx interrupt
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UCSR1B = 0x98;
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// Enable the receiver, and RX Complete Interrupt
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UCSR1B = 0x90;
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// Set frame format: 8 data, 1 stop bit, odd parity
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// Set frame format: 8 data, 1 stop bit, even parity
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// Asynchrounous USART mode
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// TODO - Even parity
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UCSR1C = 0x36;
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UCSR1C = 0x26;
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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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@ -172,7 +171,7 @@ inline void scan_setup()
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// TX Disabled, RX Enabled, RX Interrupt Enabled
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// UART_C2_TE UART_C2_RE UART_C2_RIE
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UART0_C2 = UART_C2_TE | UART_C2_RE | UART_C2_RIE;
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UART0_C2 = UART_C2_RE | UART_C2_RIE;
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// Add interrupt to the vector table
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NVIC_ENABLE_IRQ( IRQ_UART0_STATUS );
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@ -186,60 +185,147 @@ inline void scan_setup()
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// Main Detection Loop
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inline uint8_t scan_loop()
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{
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UART0_D = 0x56;
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_delay_ms( 10 );
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UART0_D = 0x1C;
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_delay_ms( 100 );
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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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// TODO Process ASCII
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// XXX NOTE: The key processing is not complete for this keyboard
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// Mostly due to laziness, and that the keyboard can't really be useful on a modern computer
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// Basic typing will work, but some of the keys and the Graph mode changes things around
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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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// Add key(s) to processing buffer
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// First split out Shift and Ctrl
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// Reserved Codes:
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// Shift - 0xF5
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// Ctrl - 0xF6
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switch ( keyValue )
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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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// - Ctrl Keys -
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// Exception keys
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case 0x08: // ^H
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case 0x09: // ^I
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case 0x0D: // ^M
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case 0x1B: // ^[
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bufferAdd( keyValue );
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break;
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// 0x40 Offset Keys
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// Add Ctrl key and offset to the lower alphabet
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case 0x00: // ^@
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case 0x1C: // "^\"
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case 0x1D: // ^]
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case 0x1E: // ^^
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case 0x1F: // ^_
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bufferAdd( 0xF6 );
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bufferAdd( keyValue + 0x40 );
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break;
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// - Add Shift key and offset to non-shifted key -
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// 0x10 Offset Keys
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case 0x21: // !
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case 0x23: // #
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case 0x24: // $
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case 0x25: // %
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x10 );
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break;
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// 0x11 Offset Keys
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case 0x26: // &
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case 0x28: // (
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x11 );
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break;
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// 0x07 Offset Keys
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case 0x29: // )
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x07 );
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break;
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// -0x0E Offset Keys
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case 0x40: // @
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bufferAdd( 0xF5 );
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bufferAdd( keyValue - 0x0E );
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break;
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// 0x0E Offset Keys
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case 0x2A: // *
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x0E );
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break;
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// 0x12 Offset Keys
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case 0x2B: // +
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x12 );
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break;
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// 0x05 Offset Keys
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case 0x22: // "
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x05 );
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break;
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// 0x01 Offset Keys
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case 0x3A: // :
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x01 );
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break;
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// -0x10 Offset Keys
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case 0x3C: // <
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case 0x3E: // >
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case 0x3F: // ?
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bufferAdd( 0xF5 );
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bufferAdd( keyValue - 0x10 );
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break;
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// -0x28 Offset Keys
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case 0x5E: // ^
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bufferAdd( 0xF5 );
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bufferAdd( keyValue - 0x28 );
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break;
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// -0x32 Offset Keys
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case 0x5F: // _
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bufferAdd( 0xF5 );
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bufferAdd( keyValue - 0x32 );
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break;
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// -0x20 Offset Keys
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case 0x7B: // {
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case 0x7C: // |
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case 0x7D: // }
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bufferAdd( 0xF5 );
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bufferAdd( keyValue - 0x20 );
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break;
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// -0x1E Offset Keys
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case 0x7E: // ~
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bufferAdd( 0xF5 );
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bufferAdd( keyValue - 0x1E );
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break;
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// All other keys
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default:
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// Ctrl Characters are from 0x00 to 0x1F, excluding:
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// 0x08 - Backspace
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// 0x09 - [Horizontal] Tab
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// 0x0D - [Carriage] Return
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// 0x1B - Escape
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// 0x7F - Delete (^?) (Doesn't need to be split out)
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// 0x60 Offset Keys
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// Add Ctrl key and offset to the lower alphabet
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if ( keyValue >= 0x00 && keyValue <= 0x1F )
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{
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bufferAdd( 0xF6 );
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bufferAdd( keyValue + 0x60 );
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}
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// Shift Characters are from 0x41 to 0x59
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// No exceptions here :D
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// Add Shift key and offset to the lower alphabet
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else if ( keyValue >= 0x41 && keyValue <= 0x5A )
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{
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bufferAdd( 0xF5 );
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bufferAdd( keyValue + 0x20 );
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}
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// Everything else
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else
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{
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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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void removeKeyValue( uint8_t keyValue )
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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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break;
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}
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}
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@ -269,15 +355,21 @@ void scan_finishedWithBuffer( uint8_t sentKeys )
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// Signal that the keys have been properly sent over USB
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void scan_finishedWithUSBBuffer( uint8_t sentKeys )
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{
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cli(); // Disable Interrupts
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// Reset the buffer counter
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KeyIndex_BufferUsed = 0;
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sei(); // Re-enable Interrupts
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}
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// Reset/Hold keyboard
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// NOTE: Does nothing with the FACOM6684
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// NOTE: Does nothing with the MBC-55x
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void scan_lockKeyboard( void )
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{
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}
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// NOTE: Does nothing with the FACOM6684
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// NOTE: Does nothing with the MBC-55x
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void scan_unlockKeyboard( void )
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{
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}
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@ -41,9 +41,9 @@ add_definitions( -I${HEAD_DIR}/Keymap )
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#| Keymap Settings
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add_definitions(
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-DMODIFIER_MASK=facom6684_ModifierMask
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#-DKEYINDEX_MASK=facom6684_ColemakMap
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-DKEYINDEX_MASK=facom6684_DefaultMap
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-DMODIFIER_MASK=mbc55x_ModifierMask
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#-DKEYINDEX_MASK=mbc55x_ColemakMap
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-DKEYINDEX_MASK=mbc55x_DefaultMap
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)
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