From af3f84a89e3c400581bd420316684fae8646d183 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 16 Sep 1999 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1999-09-16

---
 ip/il.c         |  7 ++++++
 pc/ether589.c   | 61 +++++++++++++++++++++++++++++++++----------------
 pc/etherelnk3.c | 30 ++++++++++++++++++++++--
 pc/piix4smbus.c |  1 +
 4 files changed, 77 insertions(+), 22 deletions(-)

diff --git a/ip/il.c b/ip/il.c
index 229374ab6257eb85b9394a73934d4ead9ac0929b..e6123f89f6d27d131fef08e61ddaa57158c89880 100644
--- a/ip/il.c
+++ b/ip/il.c
@@ -669,6 +669,12 @@ _ilprocess(Conv *s, Ilhdr *h, Block *bp)
 				ilpullup(s);
 			}
 			break;
+		case Ildata:
+			if(ack == ic->start) {
+				ic->state = Ilestablished;
+				goto established;
+			}
+			break;
 		case Ilclose:
 			if(ack == ic->start)
 				ilhangup(s, "remote close");
@@ -677,6 +683,7 @@ _ilprocess(Conv *s, Ilhdr *h, Block *bp)
 		freeblist(bp);
 		break;
 	case Ilestablished:
+	established:
 		switch(h->iltype) {
 		case Ilsync:
 			if(id != ic->rstart)
diff --git a/pc/ether589.c b/pc/ether589.c
index f04e3403656ae3048ba49fe628b0db1b93fd57b2..fb90a0df3247b4d7661ca594fcd6ced5b9295d87 100644
--- a/pc/ether589.c
+++ b/pc/ether589.c
@@ -111,8 +111,11 @@ configASIC(Ether* ether, int port, int xcvr)
 static int
 reset(Ether* ether)
 {
-	int slot;
+	int i, slot;
 	int port;
+	enum { WantAny, Want10BT, Want10B2 };
+	int want;
+	char *p;
 
 	if(ether->irq == 0)
 		ether->irq = 10;
@@ -128,30 +131,48 @@ reset(Ether* ether)
 		return -1;
 	}
 
-	/* try configuring as a 10BaseT */
-	if(configASIC(ether, port, xcvr10BaseT) < 0){
-		pcmspecialclose(slot);
-		iofree(port);
-		return -1;
+	/*
+	 * Allow user to specify desired media in plan9.ini
+	 */
+	want = WantAny;
+	for(i = 0; i < ether->nopt; i++){
+		if(cistrncmp(ether->opt[i], "media=", 6) != 0)
+			continue;
+		p = ether->opt[i]+6;
+		if(cistrcmp(p, "10base2") == 0)
+			want = Want10B2;
+		else if(cistrcmp(p, "10baseT") == 0)
+			want = Want10BT;
 	}
-	delay(100);
-	COMMAND(port, SelectRegisterWindow, Wdiagnostic);
-	if(ins(port+MediaStatus) & linkBeatDetect){
-		COMMAND(port, SelectRegisterWindow, Wop);
-		print("#l%d: xcvr10BaseT %s\n", ether->ctlrno, ether->type);
-		return 0;
+	
+	/* try configuring as a 10BaseT */
+	if(want==WantAny || want==Want10BT){
+		if(configASIC(ether, port, xcvr10BaseT) < 0){
+			pcmspecialclose(slot);
+			iofree(port);
+			return -1;
+		}
+		delay(100);
+		COMMAND(port, SelectRegisterWindow, Wdiagnostic);
+		if((ins(port+MediaStatus)&linkBeatDetect) || want==Want10BT){
+			COMMAND(port, SelectRegisterWindow, Wop);
+			print("#l%d: xcvr10BaseT %s\n", ether->ctlrno, ether->type);
+			return 0;
+		}
 	}
 
 	/* try configuring as a 10base2 */
-	COMMAND(port, GlobalReset, 0);
-	if(configASIC(ether, port, xcvr10Base2) < 0){
-		pcmspecialclose(slot);
-		iofree(port);
-		return -1;
+	if(want==WantAny || want==Want10B2){
+		COMMAND(port, GlobalReset, 0);
+		if(configASIC(ether, port, xcvr10Base2) < 0){
+			pcmspecialclose(slot);
+			iofree(port);
+			return -1;
+		}
+		print("#l%d: xcvr10Base2 %s\n", ether->ctlrno, ether->type);
+		return 0;
 	}
-	print("#l%d: xcvr10Base2 %s\n", ether->ctlrno, ether->type);
-
-	return 0;
+	return -1;		/* not reached */
 }
 
 void
diff --git a/pc/etherelnk3.c b/pc/etherelnk3.c
index e40a2b20222a02ddeeb1d0c2f1d402ee3b3697f9..534ebd465bd08d54416a63dbf4cdfec20971fc6f 100644
--- a/pc/etherelnk3.c
+++ b/pc/etherelnk3.c
@@ -1584,11 +1584,23 @@ static struct xxx {
 };
 #endif /* notdef */
 
+static struct {
+	char *name;
+	int avail;
+	int xcvr;
+} media[] = {
+	"10BaseT",	base10TAvailable,	xcvr10BaseT,
+	"10Base2",	coaxAvailable,		xcvr10Base2,
+	"100BaseTX",	baseTXAvailable,	xcvr100BaseTX,
+	"100BaseFX",	baseFXAvailable,	xcvr100BaseFX,
+	"aui",		auiAvailable,		xcvrAui,
+	"mii",		miiConnector,		xcvrMii
+};
+
 static int
 autoselect(int port, int xcvr, int is9)
 {
 	int media, x;
-
 	USED(xcvr);
 
 	/*
@@ -1671,12 +1683,13 @@ eepromdata(int port, int offset)
 int
 etherelnk3reset(Ether* ether)
 {
-	int anar, anlpar, busmaster, did, i, phyaddr, port, rxearly, rxstatus9, x, xcvr;
+	int anar, anlpar, busmaster, did, i, j, phyaddr, port, rxearly, rxstatus9, x, xcvr;
 	Block *bp, **bpp;
 	Adapter *ap;
 	uchar ea[Eaddrlen];
 	Ctlr *ctlr;
 	static int scandone;
+	char *p;
 
 	/*
 	 * Scan for adapter on PCI, EISA and finally
@@ -1780,6 +1793,19 @@ etherelnk3reset(Ether* ether)
 	 * of the 3C59[05], don't use busmastering at 10Mbps.
 	 */
 	XCVRDEBUG("reset: xcvr %uX\n", xcvr);
+
+	/*
+	 * Allow user to specify desired media in plan9.ini
+	 */
+	for(i = 0; i < ether->nopt; i++){
+		if(cistrncmp(ether->opt[i], "media=", 6) != 0)
+			continue;
+		p = ether->opt[i]+6;
+		for(j = 0; j < nelem(media); j++)
+			if(cistrcmp(p, media[j].name) == 0)
+				xcvr = media[j].xcvr;
+	}
+	
 /*
  * forgive me, but i am weak
  */
diff --git a/pc/piix4smbus.c b/pc/piix4smbus.c
index bf44528bb1b863ab24b972b6631472d1eda46e57..524c60aec6db7a06471c3c9c0d70a6439758db65 100644
--- a/pc/piix4smbus.c
+++ b/pc/piix4smbus.c
@@ -133,6 +133,7 @@ transact(SMBus *s, int type, int addr, int cmd, uchar *data)
 	outb(s->base+Hostcontrol, Start|proto[type].proto);
 
 	// wait for completion
+	status = 0;
 	for(tries = 0; tries < 1000000; tries++){
 		status = inb(s->base+Hoststatus);
 		if(status & (Failed|Bus_error|Dev_error|Host_complete))