sysintrctl.s

博创PXA270－S开发箱的VxWorks BSP驱动（含注释）

/* sysIntrCtl.s - pxa270 low level system interrupt support for sysIntrCtl.c */

/* Copyright 2002 Wind River Systems, Inc. */

/*
TODO -  Remove the pxa270 modification history and begin a new history
        starting with version 01a and growing the history upward with
        each revision.

modification history
--------------------
01a,21may02,scm  written.
*/

/*
DESCRIPTION
This module contains low level system interrupt support routines written in assembly
language for sysIntrCtl.c.
*/

#define _ASMLANGUAGE

#include "vxWorks.h"
#include "regs.h"
#include "arch/arm/arm.h"
#include "arch/arm/mmuArmLib.h"
#include "arch/arm/excArmLib.h"
#include "sysLib.h"
#include "config.h"

        .data
        .globl   VAR(copyright_wind_river)
        .long    VAR(copyright_wind_river)

/*
 * TODO - add low level system interrupt support routines
 * for the interrupt controller.
 */

        /* internals */

        /* Read/Write Interrupt Control (INTCTL) Register */
        .globl  FUNC(sysINTCTL_Read)
        .globl  FUNC(sysINTCTL_Write)

        .globl  FUNC(sysINTCTL_MaskAll)
        .globl  FUNC(sysINTCTL_UnMaskAll)

        /* Read/Write Interrupt Steering (INTSTR) Register */
        .globl  FUNC(sysINTSTR_Read)
        .globl  FUNC(sysINTSTR_Write)

        .globl  FUNC(sysINTSTR_SteerAll_Irq)
        .globl  FUNC(sysINTSTR_SteerAll_Fiq)

        /* Read/Write IRQ Interrupt Source (IINTSRC) Register */
        .globl  FUNC(sysIINTSRC_Read)

        /* Read/Write FIQ Interrupt Source (FINTSRC) Register */
        .globl  FUNC(sysFINTSRC_Read)

	.text
	.align 4

/*****************************************************************************
* sysINTCTL_Read - Read Interrupt Control (INTCTL) Register.
*
* RETURNS:       UINT32 containing the current INTCTL setting.
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTCTL_Read)

        /* Read Interrupt Control (INTCTL) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTCTL_Write - Write Interrupt Control (INTCTL) Register.
*
* R0:            UINT32 containing the current INTCTL setting.
*
* RETURNS:                 
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTCTL_Write)

        /* Write Interrupt Control (INTCTL) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTCTL_MaskAll - Mask All Interrupts.
*
* RETURNS:
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTCTL_MaskAll)

        /* Write Interrupt Control (INTCTL) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTCTL_UnMaskAll - UnMask All Interrupts.
*
* RETURNS:
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTCTL_UnMaskAll)

        /* Write Interrupt Control (INTCTL) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTSTR_Read - Read Interrupt Steering (INTSTR) Register.
*
* RETURNS:       UINT32 containing the current INTSTR setting.
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTSTR_Read)

        /* Read Interrupt Steering (INTSTR) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTSTR_Write - Write Interrupt Steering (INTSTR) Register.
*
* R0:            UINT32 containing the current INTSTR setting.
*
* RETURNS:               
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTSTR_Write)

        /* Write Interrupt Steering (INTSTR) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTCTL_SteerAll_Irq - Steer all interrupts to internal IRQ.
*
* RETURNS:
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTSTR_SteerAll_Irq)

        /* Write Interrupt Steering (INTSTR) Register */
        mov     pc, lr

/*****************************************************************************
* sysINTCTL_SteerAll_Fiq - Steer all interrupts to internal FIQ.
*
* RETURNS:
*/

_ARM_FUNCTION_CALLED_FROM_C(sysINTSTR_SteerAll_Fiq)

        /* Write Interrupt Steering (INTSTR) Register */
        mov     pc, lr

/*****************************************************************************
* sysIINTSRC_Read - Read IRQ Interrupt Source (IINTSRC) Register.
*
* RETURNS:       UINT32 containing the current IINTSRC setting.
*/

_ARM_FUNCTION_CALLED_FROM_C(sysIINTSRC_Read)

        /* Read IRQ Interrupt Source (IINTSRC) Register */
        mov     pc, lr

/*****************************************************************************
* sysFINTSRC_Read - Read FIQ Interrupt Source (FINTSRC) Register.
*
* RETURNS:       UINT32 containing the current FINTSRC setting.
*/

_ARM_FUNCTION_CALLED_FROM_C(sysFINTSRC_Read)

        /* Read FIQ Interrupt Source (FINTSRC) Register */
        mov     pc, lr

/***EOF***/