linux-kernel - [PATCH 01/63] ide-cd: fix SAMSUNG CD-ROM SCR-3231 quirk

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Date:	Thu, 20 Dec 2007 01:50:28 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 01/63] ide-cd: fix SAMSUNG CD-ROM SCR-3231 quirk


cdi->mask is cleared by ide_cdrom_register() which is called after the quirk.

Fix it by adding new ->no_speed_select flag to struct ide_cd_config_flags
and using it in ide_cdrom_register() to set CDC_SELECT_SPEED flag.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/ide-cd.c |    5 ++++-
 drivers/ide/ide-cd.h |    3 ++-
 2 files changed, 6 insertions(+), 2 deletions(-)

Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2903,6 +2903,9 @@ static int ide_cdrom_register (ide_drive
 	if (!CDROM_CONFIG_FLAGS(drive)->ram)
 		devinfo->mask |= CDC_RAM;
 
+	if (CDROM_CONFIG_FLAGS(drive)->no_speed_select)
+		devinfo->mask |= CDC_SELECT_SPEED;
+
 	devinfo->disk = info->disk;
 	return register_cdrom(devinfo);
 }
@@ -3155,7 +3158,7 @@ int ide_cdrom_setup (ide_drive_t *drive)
 		CDROM_CONFIG_FLAGS(drive)->limit_nframes = 1;
 	/* the 3231 model does not support the SET_CD_SPEED command */
 	else if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-3231"))
-		cdi->mask |= CDC_SELECT_SPEED;
+		CDROM_CONFIG_FLAGS(drive)->no_speed_select = 1;
 
 #if ! STANDARD_ATAPI
 	/* by default Sanyo 3 CD changer support is turned off and
Index: b/drivers/ide/ide-cd.h
===================================================================
--- a/drivers/ide/ide-cd.h
+++ b/drivers/ide/ide-cd.h
@@ -91,7 +91,8 @@ struct ide_cd_config_flags {
 	__u8 close_tray		: 1; /* can close the tray */
 	__u8 writing		: 1; /* pseudo write in progress */
 	__u8 mo_drive		: 1; /* drive is an MO device */
-	__u8 reserved		: 2;
+	__u8 no_speed_select	: 1; /* SET_CD_SPEED command is unsupported. */
+	__u8 reserved		: 1;
 	byte max_speed;		     /* Max speed of the drive */
 };
 #define CDROM_CONFIG_FLAGS(drive) (&(((struct cdrom_info *)(drive->driver_data))->config_flags))
--
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