bsp.c

uCos_II到ARM7的移植

/*
*********************************************************************************************************
*                                               OKI L67Q4051
*                                     AME-51-AS Board Support Package
*
*                                    (c) Copyright 2004, Micrium, Weston, FL
*                                              All Rights Reserved
*
*
* File : BSP.C
* By   : Eric Shufro
*********************************************************************************************************
*/

#include <includes.h>


/*
*********************************************************************************************************
*                                               DEFINITIONS
*********************************************************************************************************
*/

#define	PIOD_PATTERN		       0x0018
#define	PIOF_PATTERN		       0x003F
#define	PIOD_MASK_PATTERN	       0x00E7
#define	PIOF_MASK_PATTERN	       0x00C0
#define	INPUT_PIOD_PATTERN	       0x00C0


/*
*********************************************************************************************************
*                                              PROTOTYPES
*********************************************************************************************************
*/

static  void  SevenSegment_Init(void);

static  void  IntCtl_Init(void);
static  void  Tmr_TickInit(void);

static  void  Normal_ISR_Dummy(void);              /* Dummy IRQ ISR Handler                             */
static  void  FAST_ISR_Dummy(void);                /* Dummy FIQ ISR Handler                             */

/*
*********************************************************************************************************
*                                              VARIABLES
*********************************************************************************************************
*/

BSP_FNCT_PTR  BSP_IRQ[64];                         /* Look up table for normal ISRs                     */
BSP_FNCT_PTR  BSP_FIQ[64];                         /* Look up table for normal ISRs                     */


/*
*********************************************************************************************************
*                                         BSP INITIALIZATION
*
* Description : This function should be called by your application code before you make use of any of the
*               functions found in this module.
*
* Arguments   : none
*********************************************************************************************************
*/

void  BSP_Init (void)
{
    IntCtl_Init();                                 /* Initialize the  Interrupt Controller              */
    LED_Init();                                    /* Initialize the I/Os for the LED routines          */
    SevenSegment_Init();                           /* Initilize the I/Os for the 7 segment display      */
    Tmr_TickInit();                                /* Initialize the uC/OS-II tick interrupt            */
}


/*
*********************************************************************************************************
*                                         IntCtl_Init()
*
* Description : This function initialized the interrupt controller on the OKI L67Q4051
*********************************************************************************************************
*/

void  IntCtl_Init(void)
{
    INT8U  i;

                                                   /* Initialize the interrupt controller registers     */
    put_wvalue(ILC0,   0);                         /* Mask interrupt sources 0-7                        */
    put_wvalue(ILC1,   0);                         /* Mask interrupt sources 8-15                       */
    put_wvalue(EXILCA, 0);                         /* Mask extended interrupt sources 16-30             */
    put_wvalue(EXILCB, 0);                         /* Mask extended interrupt sources 32-46             */
    put_wvalue(EXILCC, 0);                         /* Mask extended interrupt sources 48-62             */
	
    put_wvalue(IRQS,   0);                         /* Clear any pending software interrupt requests     */
    put_wvalue(CIL, 0xFE);                         /* Unmask all global interrupt levels                */

                                                   /* Initialize IRQ / FIQ handler table                */
    for (i = 0; i < 64; i++) {
        BSP_IRQ[i] = Normal_ISR_Dummy;             /* No interrupt handler is defined yet               */
        BSP_FIQ[i] = FAST_ISR_Dummy;               /* No interrupt handler is defined yet               */
    }
}


/*
*********************************************************************************************************
*                                         BSP INITIALIZATION
*
* Description : This function should be called by your application code before you make use of any of the
*               functions found in this module.
*
* Arguments   : none
*********************************************************************************************************
*/

void  LED_Init (void)
{
    INT8U  gppo_data;
    INT8U  set_data;

                                                   /* Set DDR Port E pins 0-2 as outputs                 */
    gppo_data =  get_value(PM4);
    set_data  = (gppo_data | 0x07);
    put_value(PM4, set_data);

    LED_Off(0);
    LED_Off(1);
    LED_Off(2);
}


/*
*********************************************************************************************************
*                                             LED ON
*
* Description : This function is used to control any or all the LEDs on the board.
*
* Arguments   : led    is the number of the LED to control
*                      0    turns ON LED0 on the board
*                      1    turns ON LED1 on the board
*                      2    turns ON LED2 on the board
*********************************************************************************************************
*/

void  LED_On (INT8U led)
{
    INT8U  gppo_data;
    INT8U  set_data;


    gppo_data = get_value(PO4);

    switch (led) {
        case 0:
             set_data = gppo_data | (1 << 0);
             put_value(PO4, set_data);
             break;

        case 1:
             set_data = gppo_data | (1 << 1);
             put_value(PO4, set_data);
             break;

        case 2:
             set_data = gppo_data | (1 << 2);
             put_value(PO4, set_data);
             break;

        default:
             break;
    }
}

/*
*********************************************************************************************************
*                                             LED OFF
*
* Description : This function is used to control any or all the LEDs on the board.
*
* Arguments   : led    is the number of the LED to turn OFF
*                      0    turns OFF LED0 on the board
*                      1    turns OFF LED1 on the board
*                      2    turns OFF LED2 on the board
*********************************************************************************************************
*/

void  LED_Off (INT8U led)
{
    INT8U  gppo_data;
    INT8U  set_data;


    gppo_data = get_value(PO4);

    switch (led) {
        case 0:
             set_data = gppo_data & ~(1 << 0);
             put_value(PO4, set_data);
             break;

        case 1:
             set_data = gppo_data & ~(1 << 1);
             put_value(PO4, set_data);
             break;

        case 2:
             set_data = gppo_data & ~(1 << 2);
             put_value(PO4, set_data);
             break;

        default:
             break;
    }
}

/*
*********************************************************************************************************
*                                             LED TOGGLE
*
* Description : This function is used to toggle any or all the LEDs on the board.
*
* Arguments   : led    is the number of the LED to control
*                      0    toggles LED0 on the board
*                      1    toggles LED1 on the board
*                      2    toggles LED2 on the board
*********************************************************************************************************
*/

void  LED_Toggle (INT8U led)
{
    INT8U  gppo_data;
    INT8U  set_data;


    gppo_data = get_value(PO4);

    switch (led) {
        case 0:
             set_data = gppo_data ^ (1 << 0);
             put_value(PO4, set_data);
             break;

        case 1:
             set_data = gppo_data ^ (1 << 1);
             put_value(PO4, set_data);
             break;

        case 2:
             set_data = gppo_data ^ (1 << 2);
             put_value(PO4, set_data);
             break;