make microcode file byte-order independent so that the file is the same

on all architectures, and have the driver cope with this as well
tested by ian
YOU MUST UPDATE YOUR MICROCODE FILE OR THE DRIVER WILL NOT BE HAPPY

1 files changed, 27 insertions, 6 deletions

diff --git a/sys/dev/pci/yds.c b/sys/dev/pci/yds.c
index c42d9177a47..ce7c862c4dd 100644
--- a/sys/dev/pci/yds.c
+++ b/sys/dev/pci/yds.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: yds.c,v 1.27 2005/08/09 04:10:13 mickey Exp $	*/
+/*	$OpenBSD: yds.c,v 1.28 2007/01/06 02:48:40 deraadt Exp $	*/
 /*	$NetBSD: yds.c,v 1.5 2001/05/21 23:55:04 minoura Exp $	*/
 
 /*
@@ -91,6 +91,8 @@ int	yds_match(struct device *, void *, void *);
 void	yds_attach(struct device *, struct device *, void *);
 int	yds_intr(void *);
 
+static void nswaph(u_int32_t *p, int wcount);
+
 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
 #define KERNADDR(p) ((void *)((p)->addr))
 
@@ -334,6 +336,15 @@ yds_get_dstype(id)
 	return -1;
 }
 
+static void
+nswaph(u_int32_t *p, int wcount)
+{
+	for (; wcount; wcount -=4) {
+		*p = ntohl(*p);
+		p++;
+	}
+}
+
 static int
 yds_download_mcode(sc)
 	struct yds_softc *sc;
@@ -352,16 +363,23 @@ yds_download_mcode(sc)
 	yf = (struct yds_firmware *)buf;
 
 	if (sc->sc_flags & YDS_CAP_MCODE_1) {
-		p = (u_int32_t *)&yf->data[yf->dsplen];
-		size = yf->ds1len;
+		p = (u_int32_t *)&yf->data[ntohl(yf->dsplen)];
+		size = ntohl(yf->ds1len);
 	} else if (sc->sc_flags & YDS_CAP_MCODE_1E) {
-		p = (u_int32_t *)&yf->data[yf->dsplen + yf->ds1len];
-		size = yf->ds1elen;
+		p = (u_int32_t *)&yf->data[ntohl(yf->dsplen) + ntohl(yf->ds1len)];
+		size = ntohl(yf->ds1elen);
 	} else {
 		free(buf, M_DEVBUF);
 		return 1;	/* unknown */
 	}
 
+	if (size > buflen) {
+		printf("%s: old firmware file, update please\n",
+		    sc->sc_dev.dv_xname);
+		free(buf, M_DEVBUF);
+		return 1;
+	}
+
 	if (yds_disable_dsp(sc)) {
 		free(buf, M_DEVBUF);
 		return 1;
@@ -382,9 +400,12 @@ yds_download_mcode(sc)
         YWRITE2(sc, YDS_GLOBAL_CONTROL, ctrl & ~0x0007);
 
 	/* Download DSP microcode. */
-	YWRITEREGION4(sc, YDS_DSP_INSTRAM, (u_int32_t *)&yf->data[0], yf->dsplen);
+	nswaph((u_int32_t *)&yf->data[0], ntohl(yf->dsplen));
+	YWRITEREGION4(sc, YDS_DSP_INSTRAM, (u_int32_t *)&yf->data[0],
+	    ntohl(yf->dsplen));
 
 	/* Download CONTROL microcode. */
+	nswaph((u_int32_t *)p, size);
 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
 
 	yds_enable_dsp(sc);