Subversion Repositories HomeAutomation

/**

 * CanEggWatch. Currenty only supports nodeCLCD, this will probably change since I want 7-segments in the long run.

 * Hardware: http://projekt.auml.se/homeautomation:hardware:avr:clcd

 * TODO: Sending messages to report status, cleanup, graphical bar, nicer GUI, multiple timers

 *

 *

 * @date    2007-09-09

 * @author  Martin Norden

 *

 */

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

 * 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 <drivers/lcd/clcd/lcd_HD44780.h>

#include <drivers/timer/timebase.h>

#include <string.h> //for memcpy

#include <stdlib.h> //for itoa

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

 * 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

#define BUTTON_PUSH 0x03

#define BUTTON_RELEASE 0x04

volatile Can_Message_t rxMsg;

char incoming_text[ BUFFER_SIZE ];

uint8_t rxMsgFull;

char buffer[ BUFFER_SIZE ];

void send_dimensions(void);

void rotenc(void);

void action(uint8_t type);

void alarm(void);

uint32_t timeBase = 0;

uint16_t timerVar= 0;

uint8_t alarmTimer = 0;

char lcdBuffer[5];

// 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 Šr inte riktigt rŠtt. Verkar vara bra tycker jag?

    rotenc();

}

ISR( PCINT0_vect ){

// For ROTENC_BTN

    rotenc();

}

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

 * Main Program

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

int main(void) {

//  uint32_t act; not used anymoer

//  uint8_t act_type, lcd_size; not used anymore

//  uint8_t m, lcd_action; These are probably not needed now

    sei();

    Timebase_Init();

    /*

     * 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 = 0xFF;

    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("EggWatch\n");

    send_dimensions();

    lcd_puts("CAN Connected!\n");

    /* main loop */

    while(1){

        if( Timebase_PassedTimeMillis(timeBase) >= 1000 ){

            if (timerVar != 0){

                timerVar--;

                lcd_clrscr();

                itoa(timerVar/60,lcdBuffer,10);

                lcd_puts(lcdBuffer);

                lcd_puts(":");

                itoa(timerVar%60,lcdBuffer,10);

                lcd_puts(lcdBuffer);

            } else {

                if (alarmTimer != 0){

                    alarm();

                    alarmTimer--;

                }

            }

            timeBase =  Timebase_CurrentTime();

        }

        /* check if any messages have been received */

        if(rxMsgFull){

            //Throw it away. We don't use them yet. TODO: Support for time and remote setting.

            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, btn_laststate = 0;

    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;//FIXME: borttaget

    txMsg.DataLength=2;

    //Take care of button push

    if ((PINB&(1<<PB7)) != btn_laststate){ //The buttonstate has changed! Let's send a message!

        btn_laststate = (PINB&(1<<PB7));

        txMsg.Data.bytes[0] = 5;

        txMsg.Data.bytes[1] = (btn_laststate)?0:1;

        txMsg.DataLength=2;

        BIOS_CanSend(&txMsg);

        action((btn_laststate)?BUTTON_RELEASE:BUTTON_PUSH);

    }

    //Take care of rotary encoder movement

    if(PINB&(1<<PB0)){

        rot_data |= 0x01;

    }

    if(PIND&(1<<PD2)){

        rot_data |= 0x02;

    }

    if( rot_data==0 || rot_data==3 ){ // Are both signals high or low?

        if( rot_data==0 && rot_laststate!=rot_data ){ // Are both signals low? In that case we are finished with one turn and should print out the direction it went. 

            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);

                action(RIGHT);

            }else{

                // Moving left

                txMsg.Data.bytes[0]=LEFT;

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

                txMsg.DataLength=2;

                BIOS_CanSend(&txMsg);

                action(LEFT);

            }

        }

        rot_laststate = rot_data;

    } else { // No, only one of the signals are high. We can use this to find out what direction we are moving.

        rot_lastdir = rot_data;

    }

}

void action(uint8_t type){

    //Let's do something with something!

    lcd_clrscr();

    if (type == LEFT){

        timerVar--;

        lcd_clrscr();

        itoa(timerVar/60,lcdBuffer,10);

        lcd_puts(lcdBuffer);

        lcd_puts(":");

        itoa(timerVar%60,lcdBuffer,10);

        lcd_puts(lcdBuffer);

    }

    if (type == RIGHT){

        timerVar++;

        lcd_clrscr();

        itoa(timerVar/60,lcdBuffer,10);

        lcd_puts(lcdBuffer);

        lcd_puts(":");

        itoa(timerVar%60,lcdBuffer,10);

        lcd_puts(lcdBuffer);

    }

    if (type == BUTTON_PUSH){

        lcd_puts("Init!");

    }

    if (type == BUTTON_RELEASE){

        timeBase = Timebase_CurrentTime();

        timerVar = 10;

        alarmTimer = 1;

    }

}

void alarm(void){

    lcd_puts("Riing!");

}