amisr_usbfunc.src

Wince4.2 BSP for SH4 engineering development board

;
;       Copyright (c) Renesas Technology Corp. 2001-2003 All Rights Reserved.
;
;       OEM Adaptation Layer
;
; ----------------------------------------------------------------------------
;
;   FILE      : AMISR_USBFUNC.SRC
;   CREATED   : 2001. 7. 5
;   MODIFIED  : 2003.08.06
;   AUTHOR    : Renesas Technology Corp.
;   HARDWARE  : RENESAS US7751-HRP1xC (BigSur with HD64404, ITS-DS2A),
;               RENESAS HS7751RSTC01H (S1-E, ITS-DS5)
;   TARGET OS : Microsoft(R) Windows(R) CE .NET 4.2
;   NOTES     : 
;   FUNCTION  : Interrupt service routine for HD64404 USB Function module
;   HISTORY   :
;               2001. 7. 5
;               - Initially created.
;               2001. 9.21
;               - ISR for USB Function is implemented.
;               2002. 1.21
;               - Address parameters are changed to refer "HD64404.INC".
;               2002. 5.30
;               - Changed to include platform-independent platform include
;                file "PLATFORM.INC".
;               2002. 9. 9
;               - Header style is changed and file information is added.
;				2002. 9.26
;				- Released


    .include "kxshx.h"
    .include "oalintr.inc"
    .include "platform.inc"
    .include "hd64404.inc"

    LEAF_ENTRY HD64404_USBFunctionISR

    mov.l   #INTPRI_MASK, r0            ; HD64404 INTC IMR address
    mov.l   @r0, r1                     ; what interrupts are already masked...
    mov.l   #h'4000000, r2              ; USB_function interrupt mask value
    or      r2, r1                      ; mask the USB_function interrupt
    mov.l   r1, @r0                     ; store the new interrupt mask value back

    rts
    mov     #SYSINTR_USBF, r0
    mov     #SYSINTR_NOP, r0
    ENTRY_END

    .end