Wake up cdroms attached to pciide; same as in wd.c 1.86

tested by phessler

1 files changed, 29 insertions, 2 deletions

diff --git a/sys/dev/atapiscsi/atapiscsi.c b/sys/dev/atapiscsi/atapiscsi.c
index a3649a480b6..164e5d8e7c7 100644
--- a/sys/dev/atapiscsi/atapiscsi.c
+++ b/sys/dev/atapiscsi/atapiscsi.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: atapiscsi.c,v 1.93 2010/07/23 07:47:13 jsg Exp $     */
+/*      $OpenBSD: atapiscsi.c,v 1.94 2010/08/04 19:43:52 deraadt Exp $     */
 
 /*
  * This code is derived from code with the copyright below.
@@ -144,6 +144,7 @@ struct atapiscsi_xfer;
 
 int	atapiscsi_match(struct device *, void *, void *);
 void	atapiscsi_attach(struct device *, struct device *, void *);
+int	atapiscsi_activate(struct device *, int);
 int	atapiscsi_detach(struct device *, int);
 int     atapi_to_scsi_sense(struct scsi_xfer *, u_int8_t);
 
@@ -176,7 +177,7 @@ static struct scsi_adapter atapiscsi_switch =
 
 struct cfattach atapiscsi_ca = {
 	sizeof(struct atapiscsi_softc), atapiscsi_match, atapiscsi_attach,
-	    atapiscsi_detach
+	    atapiscsi_detach, atapiscsi_activate
 };
 
 struct cfdriver atapiscsi_cd = {
@@ -296,6 +297,32 @@ atapiscsi_attach(parent, self, aux)
 }
 
 int
+atapiscsi_activate(struct device *self, int act)
+{
+	struct atapiscsi_softc *as = (void *)self;
+ 	struct channel_softc *chp = as->chp;
+	struct ata_drive_datas *drvp = &chp->ch_drive[as->drive];
+
+	switch (act) {
+	case DVACT_SUSPEND:
+		break;
+	case DVACT_RESUME:
+		/*
+		 * Do two resets separated by a small delay. The
+		 * first wakes the controller, the second resets
+		 * the channel
+		 */
+		wdc_disable_intr(chp);
+		wdc_reset_channel(drvp);
+		delay(10000);
+		wdc_reset_channel(drvp);
+		wdc_enable_intr(chp);
+		break;
+	}
+	return (0);
+}
+
+int
 atapiscsi_detach(dev, flags)
 	struct device *dev;
 	int flags;