On Fri, Feb 15, 2008 at 02:53:27PM -0500, Stefan Bader wrote:
> Hello Borislav,
>
> I worked on a problem with an DVD driver (model=Optiarc DVD RW AD-5200A)
> which obviously has the same problem as some Matshita drives. The
> following patch was reported to enabled audio playing on this drive.
> Would this approach be suitable for upstream or are there other
> solutions to this problem?
>
> Regards,
> Stefan
>
> --- a/drivers/ide/ide-cd.c
> +++ b/drivers/ide/ide-cd.c
> @@ -2988,7 +2988,8 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
> if (strcmp(drive->id->model, "MATSHITADVD-ROM SR-8187") == 0 ||
> strcmp(drive->id->model, "MATSHITADVD-ROM SR-8186") == 0 ||
> strcmp(drive->id->model, "MATSHITADVD-ROM SR-8176") == 0 ||
> - strcmp(drive->id->model, "MATSHITADVD-ROM SR-8174") == 0)
> + strcmp(drive->id->model, "MATSHITADVD-ROM SR-8174") == 0 ||
> + strcmp(drive->id->model, "Optiarc DVD RW AD-5200A") == 0)
> CDROM_CONFIG_FLAGS(drive)->audio_play = 1;
>
> #if ! STANDARD_ATAPI
Hi Stefan,
just to make sure that the audioplay bit is not set in the capabilities page,
can you please try the following patch applied against 2.6.25-rc2 and send me
the output. Thanks!
@Bart: by the way, this cdi->mask thingy is kinda unintuitive doing double
negation to check whether a feature is supported or not. Yeah, this comes from
"above," i.e. uniform cdrom layer. But still, shouldn't we use a cdi->caps_flags
or something similar instead, which mirrors the caps page bits setting?
commit 435f0f4496a1b32af2d542f43b2370a890fe2f83
Author: Borislav Petkov <petkovbb@xxxxxxxxx>
Date: Sat Feb 16 09:56:36 2008 +0100
ide-cd: Enable audio play quirk for Optiarc DVD RW AD-5200A drive
Reported-by: Stefan Bader <stefan.bader@xxxxxxxxxxxxx>
Signed-off-by: Borislav Petkov <petkovbb@xxxxxxxxx>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index f77db6b..2c9d06e 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1750,6 +1750,10 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
if (buf[8 + 3] & 0x10)
cdi->mask &= ~CDC_DVD_R;
+ if (!(buf[8 + 4] & 0x01)) {
+ printk(KERN_INFO "ide-cd: audio play not advertised in caps page,"
+ " enabling quirk.\n");
+ }
if ((buf[8 + 4] & 0x01) || (cd->cd_flags & IDE_CD_FLAG_PLAY_AUDIO_OK))
cdi->mask &= ~CDC_PLAY_AUDIO;
@@ -1929,6 +1933,7 @@ static const struct cd_list_entry ide_cd_quirks_list[] = {
{ "MATSHITADVD-ROM SR-8186", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
{ "MATSHITADVD-ROM SR-8176", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
{ "MATSHITADVD-ROM SR-8174", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
+ { "Optiarc DVD RW AD-5200A", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
{ NULL, NULL, 0 }
};
--
Regards/Gruß,
Boris.
-
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