[src/trunk]: src/sys/arch/sparc/sparc Use bus handle to in `struct fdio' to r...

[pk <pk%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f358798ab011
branches:  trunk
changeset: 480679:f358798ab011
user:      pk <pk%NetBSD.org@localhost>
date:      Mon Jan 17 16:53:18 2000 +0000

description:
Use bus handle to in `struct fdio' to read the chip registers.

diffstat:

 sys/arch/sparc/sparc/bsd_fdintr.s |  8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diffs (25 lines):

diff -r ba3127e71944 -r f358798ab011 sys/arch/sparc/sparc/bsd_fdintr.s
--- a/sys/arch/sparc/sparc/bsd_fdintr.s Mon Jan 17 16:52:04 2000 +0000
+++ b/sys/arch/sparc/sparc/bsd_fdintr.s Mon Jan 17 16:53:18 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bsd_fdintr.s,v 1.16 1999/03/24 05:51:11 mrg Exp $ */
+/*     $NetBSD: bsd_fdintr.s,v 1.17 2000/01/17 16:53:18 pk Exp $ */
 
 /*
  * Copyright (c) 1995 Paul Kranenburg
@@ -182,9 +182,15 @@
        st      %l6, [R_fdc + FDC_EVCNT]
 
        ! load chips register addresses
+       ! NOTE: we ignore the bus tag here and assume the bus handle
+       !       is the virtual address of the chip's registers.
+       ld      [R_fdc + FDC_REG_HANDLE], %l7   ! get chip registers bus handle
        ld      [R_fdc + FDC_REG_MSR], R_msr    ! get chip MSR reg addr
+       add     R_msr, %l7, R_msr
        ld      [R_fdc + FDC_REG_FIFO], R_fifo  ! get chip FIFO reg addr
+       add     R_fifo, %l7, R_fifo
        !!ld    [R_fdc + FDC_REG_DOR], R_dor    ! get chip DOR reg addr
+       !!add   R_dor, %l7, R_dor
 
        ! find out what we are supposed to do
        ld      [R_fdc + FDC_ISTATE], %l7       ! examine flags