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 *
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 *
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 *   Functions for controlling blinds
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 *   Functions for controlling blinds
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 *
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 *
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 *********************************************************************
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 *********************************************************************
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 * FileName:        $HeadURL: https://svn.auml.se/svn/HomeAutomation/trunk/EmbeddedSoftware/PIC/canTemp/Source/blinds.c $
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 * FileName:        $HeadURL: https://svn.auml.se/svn/HomeAutomation/trunk/EmbeddedSoftware/PIC/canTemp/Source/blinds.c $
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 * Last changed:    $LastChangedDate: 2007-02-03 16:58:13 +0100 (Sat, 03 Feb 2007) $
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 * Last changed:    $LastChangedDate: 2007-02-25 20:51:08 +0100 (Sun, 25 Feb 2007) $
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 * By:              $LastChangedBy: johboh $
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 * By:              $LastChangedBy: johboh $
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 * Revision:        $Revision: 282 $
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 * Revision:        $Revision: 339 $
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 ********************************************************************/
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 ********************************************************************/
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#include <blinds.h>
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#include <blinds.h>
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#ifdef USE_BLINDS
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#ifdef USE_BLINDS
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static unsigned int timerVal = 50536;
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static unsigned int timerVal = 50536;
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static unsigned int turnOffIO = 0;
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static signed char currentPrecent = 0;
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/*
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/*
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*   Function: blindsInit
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*   Function: blindsInit
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*
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*
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*   Input:  none.
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*   Input:  none.
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    T1CON = 0b11000001;
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    T1CON = 0b11000001;
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    TMR1H=((timerVal&0xFF00)>>8);
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    TMR1H=((timerVal&0xFF00)>>8);
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    TMR1L=(timerVal&0xFF);
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    TMR1L=(timerVal&0xFF);
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    PIR1bits.TMR1IF = 0;
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    PIR1bits.TMR1IF = 0;
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    PIE1bits.TMR1IE = 1;
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    PIE1bits.TMR1IE = 1;
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    IPR1bits.TMR1IP = 1; // high prior?
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    IPR1bits.TMR1IP = 0; // Low prior
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}
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}
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/*
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*   Function: blindsGetAngle
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*
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*   Input:  none.
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*   Output: angle.
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*   Pre-conditions: none
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*   Affects: none.
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*   Depends: none.
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*/
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BYTE blindsGetPrecent()
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{
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    return currentPrecent;
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}
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/*
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/*
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*   Function: blindsTurn
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*   Function: blindsTurn
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*
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*
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*   Input:  Angle to turn to.
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*   Input:  Angle to turn to.
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*   Output: none.
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*   Output: none.
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*   Pre-conditions: none
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*   Pre-conditions: none
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*   Affects: none.
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*   Affects: none.
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*   Depends: none.
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*   Depends: none.
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*/
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*/
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void blindsTurn(signed char angle)
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void blindsTurn(BYTE precent)
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{
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{
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    // 65536-TIME/0,0000001
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    // 65536-TIME/0,0000001
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    // -90 0.5 ms = 60536 (5000)
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    // -90 0.5 ms = 60536 (5000)
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    // 0   1.5 ms = 50536 (15000)
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    // 0   1.5 ms = 50536 (15000)
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    // 90  2.5 ms = 40536 (25000)
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    // 90  2.5 ms = 40536 (25000)
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    BLINDS0P_IO=1;
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    if (angle<-90) timerVal=60536;
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    turnOffIO = IO_TIMEOUT;
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    /*
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        if (angle<ANGLE_MIN) {timerVal=ANGLE_MIN_TIMER; currentAngle=ANGLE_MIN; }
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    else if (angle>90) timerVal=40536;
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        else if (angle>ANGLE_MAX) {timerVal=ANGLE_MAX_TIMER; currentAngle=ANGLE_MAX; }
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    else
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        else
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    {
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        {
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        timerVal=60536-(unsigned int)((90+(signed int)angle)*111.111);
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            timerVal=60536-(unsigned int)((90+(signed int)angle)*111.111);
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            currentAngle=angle;
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    }
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        }
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    */
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    /*
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    angle=precent*
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    -50=k*100+m
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    60=k*0+m
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    angle=-1.1x+60
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    */
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    currentPrecent=precent;
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    if (precent>100) { currentPrecent=100; }
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    if (precent<0) { currentPrecent=0; }
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    timerVal=60536-(unsigned int)((90+(-1.05*(signed int)currentPrecent+60))*111.111);
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}
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}
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/*
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/*
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*   Function: blindsISR
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*   Function: blindsISR
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*   Depends: none.
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*   Depends: none.
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*/
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*/
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void blindsISR(void)
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void blindsISR(void)
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{
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{
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    if (PIR1bits.TMR1IF == 1 && PIE1bits.TMR1IE == 1)
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    if (PIR1bits.TMR1IF == 1 && PIE1bits.TMR1IE == 1)
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    {
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    {
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        TMR1H=((timerVal&0xFF00)>>8);
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        TMR1H=((timerVal&0xFF00)>>8);
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        TMR1L=(timerVal&0xFF);
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        TMR1L=(timerVal&0xFF);
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        BLINDS0_IO=~BLINDS0_IO;
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        BLINDS0_IO=~BLINDS0_IO;
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        if (turnOffIO--<1)
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        {
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            BLINDS0P_IO=0;
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        }
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        PIR1bits.TMR1IF = 0;
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        PIR1bits.TMR1IF = 0;
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    }
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    }
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}
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}
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