Date: Sun, 21 Nov 2004 13:00:27 +0100 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@DeepCore.dk> To: m.kucenski@computer.org Cc: freebsd-current@freebsd.org Subject: Re: ATAng support for reading from register on ATAREQUEST command? Message-ID: <41A0835B.9040404@DeepCore.dk> In-Reply-To: <20041119171236.DNZH20678.lakermmtao09.cox.net@smtp.east.cox.net> References: <20041119171236.DNZH20678.lakermmtao09.cox.net@smtp.east.cox.net>
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Matt Kucenski wrote:
> I am trying to develop a program that will allow modifications to the H=
ost Protected Area settings and one of the commands (READ NATIVE MAX ADDR=
ESS) returns the native max address back in the register (LBA high, low, =
mid).
>=20
> I have been looking at the smartmontools project for pointers on how to=
write this code and according to that source, this is not possible yet w=
ith ATAng. There is a comment in their code that another command (ATA_CM=
D_READ_REG) patch has been submitted to ATAng, but it does not appear to =
have made it into any of the latest sources.
>=20
> Can anyone offer any information on this?
The following patch returns the register values in the request you sent=20
through ioctl call. That should do the trick without any new calls..
--=20
-S=F8ren
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filename="ata-smart-patch"
Index: ata-all.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/ata/ata-all.c,v
retrieving revision 1.233
diff -u -r1.233 ata-all.c
--- ata-all.c 19 Oct 2004 20:13:38 -0000 1.233
+++ ata-all.c 19 Nov 2004 18:59:55 -0000
@@ -546,10 +546,10 @@
bcopy(iocmd->u.request.u.atapi.ccb, request->u.atapi.ccb, 16);
}
else {
- request->u.ata.command = iocmd->u.request.u.ata.command;
- request->u.ata.feature = iocmd->u.request.u.ata.feature;
- request->u.ata.lba = iocmd->u.request.u.ata.lba;
- request->u.ata.count = iocmd->u.request.u.ata.count;
+ request->u.ata.command = iocmd->u.request.u.ata.command;
+ request->u.ata.feature = iocmd->u.request.u.ata.feature;
+ request->u.ata.lba = iocmd->u.request.u.ata.lba;
+ request->u.ata.count = iocmd->u.request.u.ata.count;
}
request->timeout = iocmd->u.request.timeout;
@@ -566,6 +566,10 @@
ata_queue_request(request);
+ iocmd->u.request.u.ata.command = request->u.ata.command;
+ iocmd->u.request.u.ata.feature = request->u.ata.feature;
+ iocmd->u.request.u.ata.lba = request->u.ata.lba;
+ iocmd->u.request.u.ata.count = request->u.ata.count;
if (request->result)
iocmd->u.request.error = request->result;
else {
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