[src/trunk]: src/sys/dev/pci Make the VIA Rhine driver work on big-endian sys...

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

details:   https://anonhg.NetBSD.org/src/rev/385f05658021
branches:  trunk
changeset: 472291:385f05658021
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Mon Apr 26 23:19:10 1999 +0000

description:
Make the VIA Rhine driver work on big-endian systems.  From Izumi Tsutsui,
PR #7305.

diffstat:

 sys/dev/pci/if_vr.c |  45 +++++++++++++++++++++++++++------------------
 1 files changed, 27 insertions(+), 18 deletions(-)

diffs (123 lines):

diff -r 5a3a8d2943f8 -r 385f05658021 sys/dev/pci/if_vr.c
--- a/sys/dev/pci/if_vr.c       Mon Apr 26 22:47:34 1999 +0000
+++ b/sys/dev/pci/if_vr.c       Mon Apr 26 23:19:10 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_vr.c,v 1.20 1999/04/24 22:09:56 thorpej Exp $       */
+/*     $NetBSD: if_vr.c,v 1.21 1999/04/26 23:19:10 thorpej Exp $       */
 
 /*-
  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@@ -144,6 +144,15 @@
 
 #include <dev/pci/if_vrreg.h>
 
+#if BYTE_ORDER == BIG_ENDIAN
+#include <machine/bswap.h>
+#define        htopci(x)       bswap32(x)
+#define        pcitoh(x)       bswap32(x)
+#else
+#define        htopci(x)       (x)
+#define        pcitoh(x)       (x)
+#endif
+
 #define        VR_USEIOSPACE
 
 /*
@@ -258,12 +267,12 @@
        struct vr_desc *__d = VR_CDRX((sc), (i));                       \
        struct vr_descsoft *__ds = VR_DSRX((sc), (i));                  \
                                                                        \
-       __d->vr_next = VR_CDRXADDR((sc), VR_NEXTRX((i)));               \
-       __d->vr_status = VR_RXSTAT_FIRSTFRAG | VR_RXSTAT_LASTFRAG |     \
-           VR_RXSTAT_OWN;                                              \
-       __d->vr_data = __ds->ds_dmamap->dm_segs[0].ds_addr;             \
-       __d->vr_ctl = VR_RXCTL_CHAIN | VR_RXCTL_RX_INTR |               \
-           ((MCLBYTES - 1) & VR_RXCTL_BUFLEN);                         \
+       __d->vr_next = htopci(VR_CDRXADDR((sc), VR_NEXTRX((i))));       \
+       __d->vr_status = htopci(VR_RXSTAT_FIRSTFRAG |                   \
+           VR_RXSTAT_LASTFRAG | VR_RXSTAT_OWN);                        \
+       __d->vr_data = htopci(__ds->ds_dmamap->dm_segs[0].ds_addr);     \
+       __d->vr_ctl = htopci(VR_RXCTL_CHAIN | VR_RXCTL_RX_INTR |        \
+           ((MCLBYTES - 1) & VR_RXCTL_BUFLEN));                        \
        VR_CDRXSYNC((sc), (i), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \
 } while (0)
 
@@ -711,7 +720,7 @@
 
                VR_CDRXSYNC(sc, i, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
 
-               rxstat = d->vr_status;
+               rxstat = pcitoh(d->vr_status);
 
                if (rxstat & VR_RXSTAT_OWN) {
                        /*
@@ -768,7 +777,7 @@
                    ds->ds_dmamap->dm_mapsize, BUS_DMASYNC_POSTREAD);
 
                /* No errors; receive the packet. */
-               total_len = VR_RXBYTES(d->vr_status);
+               total_len = VR_RXBYTES(pcitoh(d->vr_status));
 
                /*
                 * XXX The VIA Rhine chip includes the CRC with every
@@ -902,7 +911,7 @@
 
                VR_CDTXSYNC(sc, i, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
 
-               txstat = d->vr_status;
+               txstat = pcitoh(d->vr_status);
                if (txstat & VR_TXSTAT_OWN)
                        break;
 
@@ -1116,11 +1125,11 @@
                 * Fill in the transmit descriptor.  The Rhine
                 * doesn't auto-pad, so we have to do this ourselves.
                 */
-               d->vr_data = ds->ds_dmamap->dm_segs[0].ds_addr;
-               d->vr_ctl = m0->m_pkthdr.len < VR_MIN_FRAMELEN ?
-                   VR_MIN_FRAMELEN : m0->m_pkthdr.len;
+               d->vr_data = htopci(ds->ds_dmamap->dm_segs[0].ds_addr);
+               d->vr_ctl = htopci(m0->m_pkthdr.len < VR_MIN_FRAMELEN ?
+                   VR_MIN_FRAMELEN : m0->m_pkthdr.len);
                d->vr_ctl |=
-                   VR_TXCTL_TLINK|VR_TXCTL_FIRSTFRAG|VR_TXCTL_LASTFRAG;
+                   htopci(VR_TXCTL_TLINK|VR_TXCTL_FIRSTFRAG|VR_TXCTL_LASTFRAG);
                
                /*
                 * If this is the first descriptor we're enqueuing,
@@ -1130,7 +1139,7 @@
                if (nexttx == firsttx)
                        d->vr_status = 0;
                else
-                       d->vr_status = VR_TXSTAT_OWN;
+                       d->vr_status = htopci(VR_TXSTAT_OWN);
 
                VR_CDTXSYNC(sc, nexttx,
                    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
@@ -1157,7 +1166,7 @@
                 * Cause a transmit interrupt to happen on the
                 * last packet we enqueued.
                 */
-               VR_CDTX(sc, sc->vr_txlast)->vr_ctl |= VR_TXCTL_FINT;
+               VR_CDTX(sc, sc->vr_txlast)->vr_ctl |= htopci(VR_TXCTL_FINT);
                VR_CDTXSYNC(sc, sc->vr_txlast,
                    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
 
@@ -1165,7 +1174,7 @@
                 * The entire packet chain is set up.  Give the
                 * first descriptor to the Rhine now.
                 */
-               VR_CDTX(sc, firsttx)->vr_status = VR_TXSTAT_OWN;
+               VR_CDTX(sc, firsttx)->vr_status = htopci(VR_TXSTAT_OWN);
                VR_CDTXSYNC(sc, firsttx,
                    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
 
@@ -1209,7 +1218,7 @@
        for (i = 0; i < VR_NTXDESC; i++) {
                d = VR_CDTX(sc, i);
                memset(d, 0, sizeof(struct vr_desc));
-               d->vr_next = VR_CDTXADDR(sc, VR_NEXTTX(i));
+               d->vr_next = htopci(VR_CDTXADDR(sc, VR_NEXTTX(i)));
                VR_CDTXSYNC(sc, i, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
        }
        sc->vr_txpending = 0;