frmwrk.c

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/**************************************************************************
*                                                                         *
*   PROJECT     : ARM port for UCOS-II                                    *
*                                                                         *
*   MODULE      : FRMWRK.c                                                *
*                                                                         *
*   AUTHOR      : Michael Anburaj                                         *
*                 URL  : http://geocities.com/michaelanburaj/             *
*                 EMAIL: [e-mail]                       *
*                                                                         *
*   PROCESSOR   : S3c2410x (32 bit ARM920T RISC core from Samsung)        *
*                                                                         *
*   IDE         : SDT 2.51 & ADS 1.2                                      *
*                                                                         *
*   DESCRIPTION :                                                         *
*   This is the Framework module. Creates an operating infrastructure.    *
*                                                                         *
**************************************************************************/


#include "includes.h"
#include "frmwrk.h"
#include "def.h"
//#include "consol.h"

#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <rt_misc.h>
#include "mmu.h"

/* ********************************************************************* */
/* Global definitions */


/* ********************************************************************* */
/* File local definitions */

#define __nSVCStkBase (STK_SADDR+_SVC_STKSIZE)
#define __nSVCStkEnd  STK_SADDR
#define __nSVCStkSize _SVC_STKSIZE

#define __nIRQStkBase (STK_SADDR+_SVC_STKSIZE+_UND_STKSIZE+_ABT_STKSIZE+_IRQ_STKSIZE)
#define __nIRQStkEnd  (STK_SADDR+_SVC_STKSIZE+_UND_STKSIZE+_ABT_STKSIZE)
#define __nIRQStkSize _IRQ_STKSIZE



/* ********************************************************************* */
/* Local functions */

/*
*********************************************************************************************
*                                       __Haltx
*
* Description: These exception handlers are used to report a particular exception on the
*              CONSOL & halt.
*
* Arguments  : none.
*
* Return     : none.
*
* Note(s)    : 
*********************************************************************************************
*/

static void __HaltUndef(void)
{
        //CONSOL_Printf("Undefined instruction exception!!!\n");
        while(1);
}

static void __HaltSwi(void)
{
        //CONSOL_Printf("SWI exception!!!\n");

        while(1);
}

static void __HaltPabort()
{
        //CONSOL_Printf("Pabort exception!!!\n");
        while(1);
}

static void __HaltDabort(void)
{
        //CONSOL_Printf("Dabort exception !!!\n");
        while(1);
}

static void __HaltFiq(void)
{
        //CONSOL_Printf("FIQ exception!!!\n");
        while(1);
}

static void __HaltIrq(void)
{
        //CONSOL_Printf("IRQ exception!!!\n");
        while(1);
}




/*
*********************************************************************************************
*                                       __vInitHaltHandlers
*
* Description: This routine hooks all the Halt exception handlers. Exceptions which are to
*              be handled by the application can be overwritten with the new handler at the
*              appropriate Software hook location.
*
* Arguments  : none.
*
* Return     : none.
*
* Note(s)    : 
*********************************************************************************************
*/

static void __vInitHaltHandlers(void)
{
        pISR_UNDEF = (unsigned)__HaltUndef;
        pISR_SWI   = (unsigned)__HaltSwi;
        pISR_PABORT= (unsigned)__HaltPabort;
        pISR_DABORT= (unsigned)__HaltDabort;
        pISR_FIQ   = (unsigned)__HaltFiq;
        pISR_IRQ = (unsigned)__HaltIrq;



}

/*
*********************************************************************************************
*                                       __vLogo
*
* Description: This routine display the Logo on the CONSOL port.
*
* Arguments  : none.
*
* Return     : none.
*
* Note(s)    : 
*********************************************************************************************
*/

static void __vLogo(void)
{
       
 
}

/*
*********************************************************************************************
*                                       __vWDTInterrupt
*
* Description: This routine clears the pending WDT interrupt & calls the OS tick handler.
*
* Arguments  : none.
*
* Return     : none.
*
* Note(s)    : 
*********************************************************************************************
*/

static void __vWDTInterrupt()
{
        rSRCPND = BIT_WDT;                  // Clear pending bit -- Watchdog timer
        rINTPND = BIT_WDT;
        
        OSTimeTick();
}

/*
*********************************************************************************************
*                                       __vPortInit
*
* Description: This routine sets the default GPIO condition.
*
* Arguments  : none.
*
* Return     : none.
*
* Note(s)    : 
*********************************************************************************************
*/

static void __vPortInit(void)
{
    //CAUTION:Follow the configuration order for setting the ports. 
    // 1) setting value(GPnDAT) 
    // 2) setting control register  (GPnCON)
    // 3) configure pull-up resistor(GPnUP)  

    //32bit data bus configuration  
    //=== PORT A GROUP
    //Ports  : GPA22 GPA21  GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12  
    //Signal : nFCE nRSTOUT nFRE   nFWE  ALE   CLE  nGCS5 nGCS4 nGCS3 nGCS2 nGCS1 
    //Binary :  1     1      1  , 1   1   1    1   ,  1     1     1     1
    //Ports  : GPA11   GPA10  GPA9   GPA8   GPA7   GPA6   GPA5   GPA4   GPA3   GPA2   GPA1  GPA0
    //Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0 
    //Binary :  1       1      1      1   , 1       1      1      1   ,  1       1     1      1         
    rGPACON = 0x7fffff; 

    //===* PORT B GROUP
    //Ports  : GPB10    GPB9    GPB8    GPB7    GPB6     GPB5    GPB4   GPB3   GPB2     GPB1      GPB0
    //Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
    //Setting: INPUT   INPUT   INPUT   INPUT   INPUT    INPUT   OUTPUT OUTPUT OUTPUT   INPUT     INPUT 
    //Binary :   00  ,  00       00  ,   00      00   ,  00       01  ,   01     01   ,  00        00  
    rGPBCON = 0x150;
    rGPBUP  = 0x7ff;     // The pull up function is disabled GPB[10:0]

    //=== PORT C GROUP
    //Ports  : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8  GPC7   GPC6   GPC5 GPC4 GPC3  GPC2  GPC1 GPC0
    //Signal : VD7   VD6   VD5   VD4   VD3   VD2   VD1  VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND  
    //Binary :  10   10  , 10    10  , 10    10  , 10   10  , 10     10  ,  10   10 , 10     10 , 10   10
    rGPCCON = 0xaaaaaaaa;       
    rGPCUP  = 0xffff;     // The pull up function is disabled GPC[15:0] 

    //=== PORT D GROUP
    //Ports  : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
    //Signal : VD23  VD22  VD21  VD20  VD19  VD18  VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9  VD8
    //Binary : 10    10  , 10    10  , 10    10  , 10   10 , 10   10 , 10   10 , 10   10 ,10   10
    rGPDCON = 0xaaaaaaaa;       
    rGPDUP  = 0xffff;     // The pull up function is disabled GPD[15:0]

    //=== PORT E GROUP
    //Ports  : GPE15  GPE14 GPE13   GPE12   GPE11   GPE10   GPE9    GPE8     GPE7  GPE6  GPE5   GPE4  
    //Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK I2SSDO 
    //Binary :  10     01  ,  10      10  ,  10      10   ,  10      10   ,   00    00  , 00     00  ,     
    //-------------------------------------------------------------------------------------------------------
    //Ports  :  GPE3   GPE2  GPE1    GPE0    
    //Signal : I2SSDI CDCLK I2SSCLK I2SLRCK     
    //Binary :  00     00  ,  00      00 
    //rGPECON = 0x9aaaaaaa;   
    rGPECON = 0x9aaa0000;   //GPE0 ~ GPE7 INPUT , 
    //rGPEUP  = 0xbfff;     // The pull up function is disabled GPE[15:0]
    rGPEUP  = 0xff00;// GPE0 ~ GPE7 pull up 
    rGPEDAT |= (1 << 14);
    
    //=== PORT F GROUP
    //Ports  : GPF7   GPF6   GPF5   GPF4      GPF3     GPF2  GPF1   GPF0
    //Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
    //Setting: Output Output Output Output    EINT3    EINT2 EINT1  EINT0
    //Binary :  01      01 ,  01     01  ,     10       10  , 01     10
    rGPFCON = 0x55a6;
    rGPFUP  = 0xff;     // The pull up function is disabled GPF[7:0]
    rGPFDAT |= (1<<1);  //GPF1 L

    //=== PORT G GROUP
    //Ports  : GPG15 GPG14 GPG13 GPG12 GPG11    GPG10    GPG9     GPG8     GPG7      GPG6    
    //Signal : nYPON  YMON nXPON XMON  EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
    //Setting: nYPON  YMON nXPON XMON  EINT19  Output   Output   Output   SPICLK1    SPIMOSI1
    //Binary :   11    11 , 11    11  , 10      01    ,   01       01   ,    01         01
    //-----------------------------------------------------------------------------------------
    //Ports  :    GPG5       GPG4    GPG3    GPG2    GPG1    GPG0    
    //Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
    //Setting:  SPIMISO1  LCD_PWRDN nSS1   nSS0   EINT9    EINT8
    //Binary :     01         11   ,  11      11  ,  10        10
   // rGPGCON = 0xff9557fa;
    rGPGCON = 0xff9557ca;
    rGPGUP  = 0xffff;    // The pull up function is disabled GPG[15:0]
    rGPGDAT = 0xf854;
/*    
    //GPG4 Output Port [9:8] 01      -> LCD_PWREN Enable
    rGPGCON = (rGPGCON & 0xfffffcff) | (1<<8);
    rGPGDAT = (rGPGDAT & 0xffef) | (1<<4);
*/
    //=== PORT H GROUP
    //Ports  :  GPH10    GPH9  GPH8 GPH7  GPH6  GPH5 GPH4 GPH3 GPH2 GPH1  GPH0 
    //Signal : CLKOUT1 CLKOUT0 UCLK nCTS1 nRTS1 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
    //Binary :   10   ,  10     10 , 11    11  , 10   10 , 10   10 , 10    10
    rGPHCON = 0x2afaaa;
    rGPHUP  = 0x7ff;    // The pull up function is disabled GPH[10:0]
    
    //External interrupt will be falling edge triggered. 
    rEXTINT0 = 0x22222222;    // EINT[7:0]
    rEXTINT1 = 0x22222222;    // EINT[15:8]
    rEXTINT2 = 0x22222222;    // EINT[23:16]
    
    //
    rGPBUP  = rGPBUP  & ~(0x1f)     | 0x1f;         //GPB4 ~ 0