Archived
1
0
This repo is archived. You can view files and clone it, but cannot push or open issues or pull requests.
controller/main.c

343 lines
9.3 KiB
C
Raw Normal View History

2011-03-04 00:38:32 +00:00
/* 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.
*/
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <util/delay.h>
//#include "usb_keyboard.h"
// TEMP INCLUDES
#include "usb_keyboard_debug.h"
#include <print.h>
2011-03-04 00:38:32 +00:00
#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
// Sleep defined in milliseconds
#define PRE_DRIVE_SLEEP 10
#define POST_DRIVE_SLEEP 10
2011-03-10 21:47:25 +00:00
// Drive Pin Defines
#define DRIVE_reg_1 PORTD
#define DRIVE_reg_2 PORTD
#define DRIVE_reg_3 PORTD
#define DRIVE_reg_4 PORTD
#define DRIVE_reg_5 PORTD
#define DRIVE_reg_6 PORTD
#define DRIVE_reg_7 PORTE
#define DRIVE_reg_8 PORTE
#define DRIVE_reg_9 PORTE
#define DRIVE_reg_10 <blank>
#define DRIVE_reg_11 <blank>
#define DRIVE_reg_12 <blank>
#define DRIVE_pin_1 2
#define DRIVE_pin_2 3
#define DRIVE_pin_3 4
#define DRIVE_pin_4 5
#define DRIVE_pin_5 6
#define DRIVE_pin_6 7
#define DRIVE_pin_7 0
#define DRIVE_pin_8 1
#define DRIVE_pin_9 6
#define DRIVE_pin_10 <blank>
#define DRIVE_pin_11 <blank>
#define DRIVE_pin_12 <blank>
2011-03-10 21:47:25 +00:00
// Detect Pin/Group Defines
#define DETECT_group_1 1
#define DETECT_group_2 2
#define DETECT_group_3 3
#define DETECT_group_4 4
#define DETECT_group_5 5
#define DETECT_group_6 6
#define DETECT_group_7 7
#define DETECT_group_8 8
#define DETECT_group_9 9
#define DETECT_group_10 <blank>
#define DETECT_group_11 <blank>
#define DETECT_group_12 <blank>
#define DETECT_group_size_1 4
#define DETECT_group_size_2 8
#define DETECT_group_size_3 8
#define DETECT_group_size_4 7
#define DETECT_group_size_5 7
#define DETECT_group_size_6 8
#define DETECT_group_size_7 6
#define DETECT_group_size_8 7
#define DETECT_group_size_9 7
#define DETECT_group_size_10 <blank>
#define DETECT_group_size_11 <blank>
#define DETECT_group_size_12 <blank>
#define DETECT_group_array_1 {{KEY_ESC,KEY_CTRL,KEY_CAPS_LOCK,KEY_SHIFT},{0,1,0,1}}
#define DETECT_group_array_2 {{KEY_BACKSPACE,KEY_UP,KEY_DOWN,KEY_A,KEY_INSERT,KEY_ALT,KEY_Z,KEY_RIGHT},{0,0,0,0,0,1,0,0}}
#define DETECT_group_array_3 {{KEY_TILDE,KEY_DELETE,KEY_LEFT,KEY_SPACE,KEY_X,KEY_S,KEY_TAB,KEY_1},{0,0,0,0,0,0,0,0}}
#define DETECT_group_array_4 {{KEY_SLASH,KEY_RIGHT_BRACE,KEY_ENTER,KEY_D,KEY_2,KEY_Q,KEY_C},{0,0,0,0,0,0,0}}
#define DETECT_group_array_5 {{KEY_EQUAL,KEY_LEFT_BRACE,KEY_QUOTE,KEY_F,KEY_3,KEY_W,KEY_V},{0,0,0,0,0,0,0}}
#define DETECT_group_array_6 {{KEY_MINUS,KEY_P,KEY_SEMICOLON,KEY_G,KEY_4,KEY_E,KEY_B,KEY_BACKSLASH},{0,0,0,0,0,0,0,0}}
#define DETECT_group_array_7 {{KEY_8,KEY_U,KEY_K,KEY_7,KEY_Y,KEY_COMMA},{0,0,0,0,0,0}}
#define DETECT_group_array_8 {{KEY_9,KEY_I,KEY_PERIOD,KEY_J,KEY_6,KEY_T,KEY_M},{0,0,0,0,0,0,0}}
#define DETECT_group_array_9 {{KEY_0,KEY_O,KEY_L,KEY_H,KEY_5,KEY_R,KEY_N},{0,0,0,0,0,0,0}}
#define DETECT_group_array_10 <blank>
#define DETECT_group_array_11 <blank>
#define DETECT_group_array_12 <blank>
2011-03-10 21:47:25 +00:00
// Drive Macros (Generally don't need to be changed), except for maybe DRIVE_DETECT
#define DRIVE_DETECT(reg,pin,group) \
reg &= ~(1 << pin); \
detection(group); \
reg |= (1 << pin); \
_delay_ms(POST_DRIVE_SLEEP);
#define DD_CASE(number) \
case number:\
DRIVE_DETECT(DRIVE_reg##_##number, DRIVE_pin##_##number, DETECT_group##_##number)
#define DD_CASE_ORD(number) \
DD_CASE(number) \
break;
#define DD_CASE_END(number,var) \
DD_CASE(number) \
var = -1; \
break;
2011-03-10 21:47:25 +00:00
// Detection Macros (Probably don't need to be changed, but depending the matrix, may have to be)
// Determine if key is either normal or a modifier
#define DET_GROUP_CHECK(index) \
{ \
if ( groupArray[1][index] ) \
curDetect.modifiers |= groupArray[0][index]; \
else \
curDetect.keyDetectArray[curDetect.keyDetectCount++] = groupArray[0][index]; \
}
2011-03-10 21:47:25 +00:00
// XXX - Detection Groups
// Checks each of the specified pins, and then if press detected, determine if the key is normal or a modifier
// Inverse logic applies for the PINs
// Used for 1 detection group
#define DET_GROUP_1 \
if ( !( PINC & (1 << 0) ) ) \
DET_GROUP_CHECK(3) \
if ( !( PINE & (1 << 1) ) ) \
DET_GROUP_CHECK(2) \
if ( !( PINE & (1 << 0) ) ) \
DET_GROUP_CHECK(1) \
if ( !( PINB & (1 << 7) ) ) \
DET_GROUP_CHECK(0)
// Used for 4 detection groups
#define DET_GROUP_2 \
if ( !( PINC & (1 << 0) ) ) \
DET_GROUP_CHECK(0) \
if ( !( PINC & (1 << 1) ) ) \
DET_GROUP_CHECK(1) \
if ( !( PINC & (1 << 2) ) ) \
DET_GROUP_CHECK(2) \
if ( !( PINC & (1 << 3) ) ) \
DET_GROUP_CHECK(3) \
if ( !( PINC & (1 << 4) ) ) \
DET_GROUP_CHECK(4) \
if ( !( PINC & (1 << 5) ) ) \
DET_GROUP_CHECK(5) \
if ( !( PINC & (1 << 6) ) ) \
DET_GROUP_CHECK(6) \
// Used for 1 detection group
#define DET_GROUP_3 \
if ( !( PINC & (1 << 0) ) ) \
DET_GROUP_CHECK(0) \
if ( !( PINC & (1 << 1) ) ) \
DET_GROUP_CHECK(1) \
2011-03-10 21:47:25 +00:00
if ( !( PINC & (1 << 3) ) ) \
DET_GROUP_CHECK(2) \
if ( !( PINC & (1 << 4) ) ) \
2011-03-10 21:47:25 +00:00
DET_GROUP_CHECK(3) \
if ( !( PINC & (1 << 5) ) ) \
2011-03-10 21:47:25 +00:00
DET_GROUP_CHECK(4) \
if ( !( PINC & (1 << 6) ) ) \
2011-03-10 21:47:25 +00:00
DET_GROUP_CHECK(5) \
// Used for 3 detection groups
#define DET_GROUP_4 \
if ( !( PINC & (1 << 0) ) ) \
DET_GROUP_CHECK(0) \
if ( !( PINC & (1 << 1) ) ) \
DET_GROUP_CHECK(1) \
if ( !( PINC & (1 << 2) ) ) \
DET_GROUP_CHECK(2) \
if ( !( PINC & (1 << 3) ) ) \
DET_GROUP_CHECK(3) \
if ( !( PINC & (1 << 4) ) ) \
DET_GROUP_CHECK(4) \
if ( !( PINC & (1 << 5) ) ) \
DET_GROUP_CHECK(5) \
if ( !( PINC & (1 << 6) ) ) \
DET_GROUP_CHECK(6) \
if ( !( PINE & (1 << 1) ) ) \
DET_GROUP_CHECK(7) \
// Combines the DET_GROUP_Xs above for the given groupArray
#define DET_GROUP(group,det_group) \
case group: \
{ \
uint8_t groupArray[2][DETECT_group_size##_##group] = DETECT_group_array##_##group; \
DET_GROUP##_##det_group \
} \
break;
struct keys {
uint8_t keyDetectCount;
uint8_t keyDetectArray[40];
uint8_t modifiers;
} curDetect, prevDetect;
void detection( int group )
{
_delay_ms(PRE_DRIVE_SLEEP);
// XXX Modify for different detection groups <-> groupArray mappings
switch ( group ) {
DET_GROUP(1,1)
/*
DET_GROUP(2,4)
DET_GROUP(3,4)
DET_GROUP(4,1)
2011-03-10 21:47:25 +00:00
DET_GROUP(5,4)
DET_GROUP(6,2)
DET_GROUP(7,2)
DET_GROUP(8,3)
DET_GROUP(9,2)
*/
}
// Print out the current keys pressed
if ( curDetect.keyDetectCount > 0 ) {
print("Keys: ");
for ( int c = 0; c < curDetect.keyDetectCount; c++ ) {
phex( curDetect.keyDetectArray[c] );
print(" ");
}
print("\n");
}
if ( curDetect.modifiers ) {
print("Modifiers: ");
phex( curDetect.modifiers );
print("\n");
}
}
// XXX This part is configurable
void pinSetup(void)
{
// For each pin, 0=input, 1=output
DDRA = 0x00;
DDRB = 0x07;
DDRC = 0x80;
DDRD = 0x00;
DDRE = 0xC0;
DDRF = 0x31;
// Setting pins to either high or pull-up resistor
PORTA = 0x00;
2011-03-10 21:47:25 +00:00
PORTB = 0x0F;
PORTC = 0xFF;
PORTD = 0x00;
2011-03-10 21:47:25 +00:00
PORTE = 0xC2;
PORTF = 0x3F;
}
int main( void )
2011-03-04 00:38:32 +00:00
{
// set for 16 MHz clock
CPU_PRESCALE( 0 );
// Configuring Pins
pinSetup();
2011-03-04 00:38:32 +00:00
// Initialize the USB, and then wait for the host to set configuration.
// If the Teensy is powered without a PC connected to the USB port,
// this will wait forever.
usb_init();
while ( !usb_configured() ) /* wait */ ;
// Wait an extra second for the PC's operating system to load drivers
// and do whatever it does to actually be ready for input
_delay_ms(1000);
// Make sure variables are properly initialized
curDetect.keyDetectCount = 0;
curDetect.modifiers = 0;
2011-03-04 00:38:32 +00:00
// Main Detection Loop
2011-03-10 21:47:25 +00:00
// XXX Change number of ORDs if number of lines differ
for ( int group = 1;;group++ ) {
// Determine which keys are being pressed
switch ( group ) {
/*
2011-03-10 21:47:25 +00:00
DD_CASE_ORD(1)
DD_CASE_ORD(2)
DD_CASE_ORD(3)
DD_CASE_ORD(4)
DD_CASE_ORD(5)
DD_CASE_ORD(6)
DD_CASE_ORD(7)
DD_CASE_ORD(8)
*/
DD_CASE_END(9,group)
2011-03-10 21:47:25 +00:00
}
if ( group != -1 )
continue;
// After going through each of the key groups, send the detected keys and modifiers
// Currently limited to the USB spec (6 keys + modifiers)
// Making sure to pass zeros when there are no keys being pressed
for ( int c = 0; c < 6 && c < curDetect.keyDetectCount; c++ )
keyboard_keys[c] = c < curDetect.keyDetectCount ? curDetect.keyDetectArray[c] : 0;
// Modifiers
keyboard_modifier_keys = curDetect.modifiers;
// Send keypresses
usb_keyboard_send();
// Cleanup
curDetect.keyDetectCount = 0;
curDetect.modifiers = 0;
2011-03-10 21:47:25 +00:00
}
2011-03-04 00:38:32 +00:00
// usb_keyboard_press(KEY_B, KEY_SHIFT);
return 0;
2011-03-04 00:38:32 +00:00
}