From ec510cabb066488af6e05697c867f11652e96a58 Mon Sep 17 00:00:00 2001
From: Nate Williams <nate@FreeBSD.org>
Date: Tue, 28 Oct 1997 17:51:25 +0000
Subject: [PATCH] - Disable cards when doing a suspend by emulating that they
 have been   removed.  Add a new state 'suspend' so we 'fake' insertion events
 at   resume time for the cards that have been suspended.

[
The code still works if you remove the card during suspend, switch the
card during suspend, or combinations of both.
]

Reviewed by:	frf@xocolatl.com
---
 sys/pccard/card.h               |  2 +-
 sys/pccard/cardinfo.h           |  2 +-
 sys/pccard/pccard.c             | 19 +++++++++++--------
 usr.sbin/pccard/pccardd/cardd.c |  5 ++++-
 4 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/sys/pccard/card.h b/sys/pccard/card.h
index 159a8e761761..91da7268af43 100644
--- a/sys/pccard/card.h
+++ b/sys/pccard/card.h
@@ -54,7 +54,7 @@
 /*
  *	Slot states for PIOCGSTATE
  */
-enum cardstate { noslot, empty, filled };
+enum cardstate { noslot, empty, suspend, filled };
 
 /*
  *	Descriptor structure for memory map.
diff --git a/sys/pccard/cardinfo.h b/sys/pccard/cardinfo.h
index 159a8e761761..91da7268af43 100644
--- a/sys/pccard/cardinfo.h
+++ b/sys/pccard/cardinfo.h
@@ -54,7 +54,7 @@
 /*
  *	Slot states for PIOCGSTATE
  */
-enum cardstate { noslot, empty, filled };
+enum cardstate { noslot, empty, suspend, filled };
 
 /*
  *	Descriptor structure for memory map.
diff --git a/sys/pccard/pccard.c b/sys/pccard/pccard.c
index 549f2155821b..d0507b3c23c4 100644
--- a/sys/pccard/pccard.c
+++ b/sys/pccard/pccard.c
@@ -372,6 +372,14 @@ slot_suspend(void *arg)
 {
 	struct slot *slt = arg;
 
+	/* This code stolen from pccard_event:card_removed */
+	if (slt->state == filled) {
+		int s = splhigh();
+		disable_slot(slt);
+		slt->state = suspend;
+		splx(s);
+		printf("Card disabled, slot %d\n", slt->slotnum);
+	}
 	slt->ctrl->disable(slt);
 	return (0);
 }
@@ -383,16 +391,11 @@ slot_resume(void *arg)
 
 	if (pcic_resume_reset)
 		slt->ctrl->resume(slt);
-	/* Fake card removal/insertion events */
-	if (slt->state == filled) {
-		int s;
-
-		s = splhigh();
-		disable_slot(slt);
+	/* This code stolen from pccard_event:card_inserted */
+	if (slt->state == suspend) {
 		slt->state = empty;
-		splx(s);
 		slt->insert_seq = 1;
-		slt->insert_ch = timeout(inserted, (void *)slt, hz);
+		slt->insert_ch = timeout(inserted, (void *)slt, hz/4);
 		selwakeup(&slt->selp);
 	}
 	return (0);
diff --git a/usr.sbin/pccard/pccardd/cardd.c b/usr.sbin/pccard/pccardd/cardd.c
index e2237f3c6fd6..64c31a0feb9e 100644
--- a/usr.sbin/pccard/pccardd/cardd.c
+++ b/usr.sbin/pccard/pccardd/cardd.c
@@ -26,7 +26,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-	"$Id: cardd.c,v 1.18 1997/10/06 11:36:06 charnier Exp $";
+	"$Id: cardd.c,v 1.19 1997/10/26 04:36:24 nate Exp $";
 #endif /* not lint */
 
 #include <fcntl.h>
@@ -227,6 +227,9 @@ slot_change(struct slot *sp)
 	case filled:
 		card_inserted(sp);
 		break;
+	case suspend:
+		/* ignored */
+		break;
 	}
 }