Subversion Repositories HomeAutomation

/**

 * CanSimpleCLCD. Simple version.

 * For HD44780- and KS0073-based LCD displays

 *

 * Contains no intelligence. It just prints what it is told to.

 *

 * @date    2006-12-11

 * @author  Erik Larsson

 *

 */

/*-----------------------------------------------------------------------------

 * Includes

 *---------------------------------------------------------------------------*/

/* system files */

#include <avr/io.h>

#include <inttypes.h>

#include <avr/interrupt.h>

#include <stdio.h>

/* lib files */

#include <bios.h>

#include <config.h>

#include <lcd_HD44780.h>

/* funcdefs */

#include <funcdefs/funcdefs.h>

/*-----------------------------------------------------------------------------

 * Defines

 *---------------------------------------------------------------------------*/

#define SIZE_X	20

#define SIZE_Y	4

#define SIZE_LCD LCD_SIZE_20x4

#define BUFFER_SIZE SIZE_X

#define TRUE 1

#define FALSE 0

#define LEFT	0x01

#define RIGHT	0x02

volatile Can_Message_t rxMsg;

char incoming_text[ BUFFER_SIZE ];

uint8_t rxMsgFull;

char buffer[ BUFFER_SIZE ];

void send_dimensions();

void rotenc();

// CAN message reception callback

// This function runs with interrupts disabled, keep it as short as possible

void can_receive(Can_Message_t *msg){

	if(!rxMsgFull){

		memcpy((void*)&rxMsg, msg, sizeof(rxMsg));

		rxMsgFull = 1;

	}

}

ISR( PCINT2_vect ){

// For ROTENC_A and ROTENC_B FIXME är inte riktigt rätt

	rotenc();

}

ISR( PCINT0_vect ){

// For ROTENC_BTN

rotenc();

}

/*-----------------------------------------------------------------------------

 * Main Program

 *---------------------------------------------------------------------------*/

int main(void) {

	uint32_t act;

	uint8_t m, act_type, lcd_action, lcd_size;

	sei();

	/*

	 * Initialize rotaryencoders and buttons

	 */

	// Set as input

	DDRD &= ~(1<<DDD2);

	DDRB &= ~((1<<DDB7)|(1<<DDB0));

	// Enable pull-up

	PORTD |= (1<<PD2);

	PORTB |= (1<<PB7)|(1<<PB0);

	// Enable IO-pin interrupt

	PCICR |= (1<<PCIE2)|(1<<PCIE0);

	// Unmask PB7, PB0 and PD2

	PCMSK2 |= (1<<PCINT18);

	PCMSK0 |= (1<<PCINT7)|(1<<PCINT0);

	// Contrast

	TCCR0A |= (1<<COM0B1)|(1<<WGM01)|(1<<WGM00);

	TCCR0B |= (1<<CS00);

	OCR0B = 0x10;

	DDRD |= (1<<DDD5);

	// Backlight

	TCCR1A |= (1<<COM1A1)|(1<<WGM11);

	TCCR1B |= (1<<WGM13)|(1<<WGM12)|(1<<CS10);

	ICR1 = 0xFF; // Make it 8 bits

	OCR1A = 0x80;

	DDRB |= (1<<DDB1);

	Can_Message_t txMsg;

	txMsg.ExtendedFlag=1;

	txMsg.RemoteFlag=0;

// FIXME skicka app startad

	BIOS_CanCallback = &can_receive;

	lcd_init( LCD_DISP_ON );

	lcd_clrscr();

	lcd_puts("HomeAutomation\n");

	send_dimensions();

	lcd_puts("Very nice!\n");

    /* main loop */

	while(1){

        /* check if any messages have been received */

		if(rxMsgFull){

			if( ((rxMsg.Id & CLASS_MASK)>> CLASS_MASK_BITS) == CLASS_ACT ){ // FIXME ett jäkla herk, städa upp

				act = (rxMsg.Id & TYPE_MASK) >> TYPE_MASK_BITS;

				act_type = (act & ACT_TYPE_MASK) >> ACT_TYPE_BITS;

				lcd_action = (act & LCD_ACTION_MASK) >> LCD_ACTION_BITS;

				lcd_size = (act & LCD_SIZE_MASK) >> LCD_SIZE_BITS;

				if( act_type == ACT_TYPE_LCD && (lcd_size == SIZE_LCD || lcd_size == LCD_SIZE_ALL)){

					switch( lcd_action ){

					case LCD_ACTION_CLR:

						// Clear LCD

						lcd_clrscr();

					break;

					case LCD_ACTION_CURS:

						// Move cursor

						lcd_gotoxy( rxMsg.Data.bytes[0],rxMsg.Data.bytes[1] );

					break;

					case LCD_ACTION_GET_SIZE:

						// Request LCD dimension

						send_dimensions();

					break;

					case LCD_ACTION_TEXT:

						// Print text to LCD

						for(m=0;m<rxMsg.DataLength;m++){

							lcd_putc( (char)rxMsg.Data.bytes[m] );

						}

					break;

					case LCD_ACTION_SET_CONT:

						// Set contrast

						if(rxMsg.DataLength == 1){

							OCR0B = rxMsg.Data.bytes[0];

						}

					break;

					case LCD_ACTION_SET_BLIGHT:

						// Set backlight

						if(rxMsg.DataLength == 1){

							OCR1AL = rxMsg.Data.bytes[0];

						}

					break;

					case LCD_ACTION_GET_CONT:

						// Get contrast

						txMsg.DataLength = 1;

						txMsg.Id = ( CLASS_ACT<<CLASS_MASK_BITS )|( ACT_TYPE_LCD<<ACT_TYPE_BITS )|( LCD_ACTION_SEND_CONT<<LCD_ACTION_BITS )|NODE_ID;

						txMsg.Data.bytes[0] = OCR0B;

						BIOS_CanSend(&txMsg);

					break;

					case LCD_ACTION_GET_BLIGHT:

						// Get backlight

						txMsg.DataLength = 1;

						txMsg.Id = ( CLASS_ACT<<CLASS_MASK_BITS )|( ACT_TYPE_LCD<<ACT_TYPE_BITS )|( LCD_ACTION_SEND_BLIGHT<<LCD_ACTION_BITS )|NODE_ID;

						txMsg.Data.bytes[0] = OCR1AL;

						BIOS_CanSend(&txMsg);

					break;

					default:

					// Take over the world

					break;

					}

				}

			}

			rxMsgFull = 0;

		}

	}

}

void send_dimensions(){

	Can_Message_t txMsg;

	txMsg.ExtendedFlag=1;

	txMsg.RemoteFlag=0;

	txMsg.Id=0xA000001;

	txMsg.Data.bytes[0] = SIZE_X;

	txMsg.Data.bytes[1] = SIZE_Y;

	txMsg.DataLength = 2;

	BIOS_CanSend(&txMsg);

}

void rotenc(){

	uint8_t rot_data = 0;

	static uint8_t rot_lastdir = 0, rot_laststate = 0; // FIXME måste flyttas ut igen?

	Can_Message_t txMsg;

	txMsg.ExtendedFlag=1;

	txMsg.RemoteFlag=0;

	txMsg.Id = ( CLASS_SNS<<CLASS_MASK_BITS )|( SNS_ACT_BUTTON<<SNS_TYPE_BITS )|( 0x01<<SNS_ID_BITS )| NODE_ID;

	txMsg.DataLength=2;

	if(PINB&(1<<PB0)){

		rot_data |= 0x01;

	}

	if(PIND&(1<<PD2)){

		rot_data |= 0x02;

	}

	if( rot_data==0 || rot_data==3 ){

		if( rot_data==0 && rot_laststate!=rot_data ){

			if( rot_lastdir&0x01 ){

				// Moving right

				txMsg.Data.bytes[0]=RIGHT;

				txMsg.Data.bytes[1] = (PINB&(1<<PB7))?0:1;

				txMsg.DataLength=2;

				BIOS_CanSend(&txMsg);

				// For testing TODO remove

				if(OCR1A<0xFF){

					OCR1A++;

				}

				if(OCR0B>0){

					OCR0B--;

				}

			}else{

				// Moving left

				txMsg.Data.bytes[0]=LEFT;

				txMsg.Data.bytes[1] = (PINB&(1<<PB7))?0:1;

				txMsg.DataLength=2;

				BIOS_CanSend(&txMsg);

				// For testing TODO remove

				if(OCR1A>0){

					OCR1A--;

				}

				if(OCR0B<0xFF){

					OCR0B++;

				}

			}

		}

		rot_laststate = rot_data;

	}else{

		rot_lastdir = rot_data;

	}

}