From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1JCmVq-0001P9-5F
	for qemu-devel@nongnu.org; Wed, 09 Jan 2008 20:47:18 -0500
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1JCmVn-0001ON-W1
	for qemu-devel@nongnu.org; Wed, 09 Jan 2008 20:47:17 -0500
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1JCmVn-0001OK-Q8
	for qemu-devel@nongnu.org; Wed, 09 Jan 2008 20:47:15 -0500
Received: from mail2.zrz.tu-berlin.de ([130.149.4.14])
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <strauman@slac.stanford.edu>) id 1JCmVn-0003bT-DO
	for qemu-devel@nongnu.org; Wed, 09 Jan 2008 20:47:15 -0500
Message-ID: <4785791E.4060600@slac.stanford.edu>
Date: Wed, 09 Jan 2008 17:47:10 -0800
From: Till Straumann <strauman@slac.stanford.edu>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: [Qemu-devel] [ide] why does WIN_DIAGNOSE not set READY_STAT
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org
Cc: RTEMS Users <rtems-users@rtems.org>

Hi.

I found that the RTEMS ATA driver hangs
because it waits for READY_STAT to be asserted
after issuing a WIN_DIAGNOSE command.

In hw/ide.c we find

>        case WIN_DIAGNOSE:
>             ide_set_signature(s);
>             s->status = 0x00; /* NOTE: READY is _not_ set */
>             s->error = 0x01;
>             ide_set_irq(s);
>             break;
but if I look at some ATA-3 (draft) document I found
linked from wikipedia

(here:
http://www.t10.org/t13/project/d2008r7b-ATA-3.pdf
)

I find (pp 45,46) that the READY bit in fact should be set.

??

Regards
-- Till

(PS please CC-me on any replies, I'm not a subscriber)