From f4b25f1bf1b9c485451279a9bb96d026a78e2dbc Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Fri, 31 Mar 1995 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1995-03-31

---
 pc/devi82365.c | 18 ++++--------
 pc/ether509.c  | 21 +++++--------
 pc/ether589.c  | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++
 pc/trap.c      |  2 +-
 4 files changed, 94 insertions(+), 27 deletions(-)
 create mode 100644 pc/ether589.c

diff --git a/pc/devi82365.c b/pc/devi82365.c
index fca55e92b515f0276211a5efb05a7f0c9dd8fb82..dae0883d58e12b90925551c2db6a84b53ac7272a 100644
--- a/pc/devi82365.c
+++ b/pc/devi82365.c
@@ -246,14 +246,8 @@ slotena(Slot *pp)
 	/* power up and unreset, wait's are empirical (???) */
 	wrreg(pp, Rpc, Fautopower|Foutena|Fcardena);
 	delay(300);
-	wrreg(pp, Rigc, Fnotreset);
-	delay(500);
-
-	wrreg(pp, Rpc, 0);
-	delay(500);
-
-	wrreg(pp, Rpc, Fautopower|Foutena|Fcardena);
-	delay(300);
+	wrreg(pp, Rigc, 0);
+	delay(100);
 	wrreg(pp, Rigc, Fnotreset);
 	delay(500);
 
@@ -263,7 +257,7 @@ slotena(Slot *pp)
 		cisread(pp);
 		pp->enabled = 1;
 	} else
-		wrreg(pp, Rpc, 0);
+		wrreg(pp, Rpc, Fautopower);
 }
 
 /*
@@ -272,8 +266,8 @@ slotena(Slot *pp)
 static void
 slotdis(Slot *pp)
 {
-	wrreg(pp, Rwe, 0);		/* no windows */
-	wrreg(pp, Rpc, 0);		/* turn off card power */
+	wrreg(pp, Rpc, 0);	/* turn off card power */
+	wrreg(pp, Rwe, 0);	/* no windows */
 	pp->enabled = 0;
 }
 
@@ -1306,7 +1300,7 @@ tentry(Slot *pp, int ttype)
 	case 3:
 		if(readc(pp, &c) != 1)
 			return;
-		for(i = 0; i <= c&0x7; i++)
+		for(i = 0; i <= (c&0x7); i++)
 			memspace(pp, (c>>5)&0x3, (c>>3)&0x3, c&0x80);
 		break;
 	}
diff --git a/pc/ether509.c b/pc/ether509.c
index ff3c66547df74f9a35038e54d30c1deb8b80087a..9f5db085c60527ac9fed16fe90478c885fcfab9a 100644
--- a/pc/ether509.c
+++ b/pc/ether509.c
@@ -279,7 +279,6 @@ interrupt(Ureg *ur, void *arg)
 	Ether *ether;
 
 	USED(ur);
-
 	ether = arg;
 	port = ether->port;
 
@@ -552,18 +551,11 @@ tcm579(Ether *ether)
 	return 0;
 }
 
-static ulong
-tcm589(Ether *ether)
-{
-	USED(ether);
-	return 0;
-}
-
 /*
  * Get configuration parameters.
  */
-static int
-reset(Ether *ether)
+int
+ether509reset(Ether *ether)
 {
 	int i, eax;
 	uchar ea[Eaddrlen];
@@ -588,12 +580,12 @@ reset(Ether *ether)
 			break;
 		}
 	}
+	if(strcmp(ether->type, "3C589") == 0)
+		port = ether->port;
 	if(port == 0)
 		port = tcm579(ether);
 	if(port == 0)
 		port = tcm509(ether);
-	if(port == 0)
-		port = tcm589(ether);
 	if(port == 0)
 		return -1;
 
@@ -603,7 +595,8 @@ reset(Ether *ether)
 	 * The EEPROM command is 8 bits, the lower 6 bits being
 	 * the address offset.
 	 */
-	ether->irq = (ins(port+ResourceConfig)>>12) & 0x0F;
+	if(strcmp(ether->type, "3C589") != 0)
+		ether->irq = (ins(port+ResourceConfig)>>12) & 0x0F;
 	for(eax = 0, i = 0; i < 3; i++, eax += 2){
 		while(ins(port+EEPROMcmd) & 0x8000)
 			;
@@ -680,5 +673,5 @@ reset(Ether *ether)
 void
 ether509link(void)
 {
-	addethercard("3C509",  reset);
+	addethercard("3C509",  ether509reset);
 }
diff --git a/pc/ether589.c b/pc/ether589.c
new file mode 100644
index 0000000000000000000000000000000000000000..5ae9430327c50bf3807db1b0e3b5f3c5d3fccc8f
--- /dev/null
+++ b/pc/ether589.c
@@ -0,0 +1,80 @@
+#include "u.h"
+#include "../port/lib.h"
+#include "mem.h"
+#include "dat.h"
+#include "fns.h"
+#include "io.h"
+#include "../port/error.h"
+#include "../port/netif.h"
+
+#include "etherif.h"
+
+enum {
+	SelectWindow	= 0x01,		/* SelectWindow command */
+
+	Command		= 0x0E,		/* all windows */
+	Status		= 0x0E,
+
+	ManufacturerID	= 0x00,		/* window 0 */
+	ProductID	= 0x02,
+	ConfigControl	= 0x04,
+	AddressConfig	= 0x06,
+	ResourceConfig	= 0x08,
+	EEPROMcmd	= 0x0A,
+	EEPROMdata	= 0x0C,
+};
+
+#define COMMAND(port, cmd, a)	outs(port+Command, ((cmd)<<11)|(a))
+
+extern int ether509reset(Ether*);
+
+static int
+reset(Ether *ether)
+{
+	int slot;
+	int port;
+	ushort x;
+
+	if(ether->irq == 0)
+		ether->irq = 10;
+	if(ether->port == 0)
+		ether->port = 0x3F0;
+	port = ether->port;
+
+	slot = pcmspecial("3C589", ether);
+	if(slot < 0)
+		return -1;
+
+	/* set Window 0 configuration registers */
+	COMMAND(port, SelectWindow, 0);
+
+	/* ROM size & base - must be set before we can access ROM */
+	/* transceiver type (for now always 10baseT) */
+	x = ins(port + AddressConfig);
+	outs(port + AddressConfig, x & 0x20);
+
+	/* IRQ must be 3 on 3C589 */
+	x = ins(port + ResourceConfig);
+	outs(port + ResourceConfig, 0x3000 | (x&0xfff));
+
+	/* move product ID to register */
+	while(ins(port+EEPROMcmd) & 0x8000)
+		;
+	outs(port+EEPROMcmd, (2<<6)|3);
+	while(ins(port+EEPROMcmd) & 0x8000)
+		;
+	x = ins(port+EEPROMdata);
+	outs(port + ProductID, x);
+
+	if(ether509reset(ether) < 0){
+		pcmspecialclose(slot);
+		return -1;
+	}
+	return 0;
+}
+
+void
+ether589link(void)
+{
+	addethercard("3C589", reset);
+}
diff --git a/pc/trap.c b/pc/trap.c
index 9e01d3abbc26efe6654ff90fbc4c26de8827cf0a..9f9c7bbcf9fbbc512caf435a58b2d6e06c105f3f 100644
--- a/pc/trap.c
+++ b/pc/trap.c
@@ -199,7 +199,7 @@ trapinit(void)
 	/*
 	 *  Set up the second 8259 interrupt processor.
 	 *  Make 8259 interrupts start at CPU vector Int1vec.
-	 *  Set the 8259 as master with edge triggered
+	 *  Set the 8259 as master with level triggered
 	 *  input with fully nested interrupts.
 	 */
 	outb(Int1ctl, (1<<4)|(1<<3)|(1<<0));	/* ICW1 - master, level triggered,