[coreboot] Patch set updated for filo: c6906e3 Unlock ATAPI devices on boot
Patrick Georgi (patrick@georgi-clan.de)
gerrit at coreboot.org
Wed Sep 7 22:26:21 CEST 2011
Patrick Georgi (patrick at georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/192
-gerrit
commit c6906e35334a7383706cb5933d688292f39c8de8
Author: Patrick Georgi <patrick.georgi at secunet.com>
Date: Tue Aug 24 11:07:21 2010 +0200
Unlock ATAPI devices on boot
This makes CD/DVD drives accessible that were locked prior to a
reboot.
Change-Id: I4f2a0ddafac2debe0a1564904f37025850cc519e
Signed-off-by: Patrick Georgi <patrick.georgi at secunet.com>
---
drivers/ide_new.c | 13 +++++++++++++
drivers/ide_new.h | 1 +
2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/ide_new.c b/drivers/ide_new.c
index 4f612be..e034d6e 100644
--- a/drivers/ide_new.c
+++ b/drivers/ide_new.c
@@ -658,6 +658,19 @@ ob_ide_atapi_drive_ready(struct ide_drive *drive)
return 1;
}
+ /* clear Persistent Prevent State */
+ memset (cmd, 0, sizeof(*cmd));
+ cmd->cdb[0] = ATAPI_PREVENT_ALLOW_MEDIUM_REMOVAL;
+ cmd->cdb[2] = 2;
+ if (ob_ide_atapi_packet(drive, cmd))
+ printf("could not persistently unlock device\n");
+
+ /* clear Prevent State */
+ memset (cmd, 0, sizeof(*cmd));
+ cmd->cdb[0] = ATAPI_PREVENT_ALLOW_MEDIUM_REMOVAL;
+ if (ob_ide_atapi_packet(drive, cmd))
+ printf("could not unlock device\n");
+
/*
* finally, get capacity and block size
*/
diff --git a/drivers/ide_new.h b/drivers/ide_new.h
index 8d3979a..f667e41 100644
--- a/drivers/ide_new.h
+++ b/drivers/ide_new.h
@@ -70,6 +70,7 @@
#define ATAPI_READ_10 0x28
#define ATAPI_REQ_SENSE 0x03
#define ATAPI_START_STOP_UNIT 0x1b
+#define ATAPI_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
#define ATAPI_READ_CAPACITY 0x25
/*
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