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* [patch] Fix for ATAPI CD/DVD-ROMs and burners with vt8235 (and other chipsets)
@ 2002-12-27 10:11 Vojtech Pavlik
  2002-12-28  0:51 ` Alan Cox
                   ` (4 more replies)
  0 siblings, 5 replies; 7+ messages in thread
From: Vojtech Pavlik @ 2002-12-27 10:11 UTC (permalink / raw)
  To: Linus Torvalds, Alan Cox, Andre Hedrick, Marcelo Tosatti, LMKL

[-- Attachment #1: Type: text/plain, Size: 454 bytes --]

Hi!

Attached are two patches, one for recent 2.4 and one for 2.5, which
enlarge the address setup timing for ATAPI devices. This is needed for
several CD/DVD-ROMs and burners that won't work with standard timings.
So far problems were reported only on vt8233a and vt8235, but I suppose
other chipsets where the drivers actually program the address setup
timing according to the spec can be affected.

Please apply, thanks.

-- 
Vojtech Pavlik
SuSE Labs

[-- Attachment #2: vt8235-marcelo --]
[-- Type: text/plain, Size: 1993 bytes --]

You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.

===================================================================


ChangeSet@1.897, 2002-12-27 10:59:52+01:00, vojtech@suse.cz
   Workaround (ide-timing.h) for many ATAPI CD/DVD-ROMs and burners.
   They need extended (beyond spec) address setup timing, and as such
   don't work on recent VIA chipsets.


 ide-timing.h |    8 ++++++++
 1 files changed, 8 insertions(+)


diff -Nru a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h
--- a/drivers/ide/ide-timing.h	Fri Dec 27 11:00:15 2002
+++ b/drivers/ide/ide-timing.h	Fri Dec 27 11:00:15 2002
@@ -245,6 +245,14 @@
 	}
 
 /*
+ * If the drive is an ATAPI device it may need slower address setup timing,
+ * so we stay on the safe side.
+ */
+
+	if (drive->media != ide_disk)
+		p.setup = 120;
+
+/*
  * Convert the timing to bus clock counts.
  */
 

===================================================================


This BitKeeper patch contains the following changesets:
+
## Wrapped with gzip_uu ##


begin 664 bkpatch2571
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ME]`FKF*WI2@_'J>MMFG:D(;@CB1*8N?X]3GO>90#N#18=5LK_=VBS,@!O-?&
M=EMF:="3/]UXHK4;^YDNT-]'^=<SOQ"5Q+DF+F(LK,Q@A97IMI@7W,[8S0*[
MK<G;=Y<?^Q-">CT89**\P<]HH=<C5E<K,5?F3-ALKDO/5J(T!5KA25W4MZ$U
MIY2[,V))0*.X9C$-DUHRQ9@(&2K*PS0.2;:\R<Y<#KD5YA$!QGE">9#0J':/
M(")#8%[:28!RGW&?)\!H-^IT(WY"69=2V)=ZMC<"3ABT*7D#?S?K`9$`7W0U
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MW$A5Y0U0OO/#O^_)/5^C@"=NF,91':L8(Q&QSE3%`1?R8?=^+[=EHQ-UPK@.
MXB1E6U2?6M&0^\_R)L_*FP:\P](PX&GMR`Z2+=/!0Z+#^"FBT_]$[XG>M?T<
MVM5Z>SE$QT\2\`>XCWB80$K@&$93L!GNM"%OBMX[H7"52S=EG3W[LLU<K[%Z
MO,Q&RVA8(QCKXEUIC:P14W=SR7KNNT^^DE8^A</M9NW3`E4NX$4/W/=O*C>S
H(])J+;R=;`\8IZ_="O_X[I<N,Y0SLRQZBH5*1E-!?@&ZOKMG+P8`````
`
end

[-- Attachment #3: vt8235-linus --]
[-- Type: text/plain, Size: 2020 bytes --]

You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.

===================================================================


ChangeSet@1.957, 2002-12-27 10:46:29+01:00, vojtech@suse.cz
  Workaround (ide-timing.h) for many ATAPI CD/DVD-ROMs and burners.
  They need extended (beyond spec) address setup timing, and as such
  don't work on recent VIA chipsets.


 ide-timing.h |    8 ++++++++
 1 files changed, 8 insertions(+)


diff -Nru a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h
--- a/drivers/ide/ide-timing.h	Fri Dec 27 10:47:10 2002
+++ b/drivers/ide/ide-timing.h	Fri Dec 27 10:47:10 2002
@@ -245,6 +245,14 @@
 	}
 
 /*
+ * If the drive is an ATAPI device it may need slower address setup timing,
+ * so we stay on the safe side.
+ */
+
+	if (drive->media != ide_disk)
+		p.setup = 120;
+
+/*
  * Convert the timing to bus clock counts.
  */
 

===================================================================


This BitKeeper patch contains the following changesets:
+
## Wrapped with gzip_uu ##


begin 664 bkpatch1702
M'XL(`)XA##X``[V46V_3,!3'G^M/<=`>V(4F=JY-4*>.%4$%:%79Q@L2<FUW
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MJ8QRQ!=<C[3&M9OIN7)W7NYXZL[RHC($[4-N109+59JTQ1S_9L>N%RIMC5Z^
MNGA[,B*DVX73C!=7ZKVRT.T2J\LEGTG3XS:;Z<*Q)2_,7%GN"#VO;UQKCU(/
M[Y#%/@VCFD4TB&O!)&,\8$I2+^A$`5GPI9KU*K'"G.\$,\^+6$(CG]9^%"<>
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M/+6PPG1`%U`JH0H+EX,3$%F^P$`\Z0WX8=P)R/!VC*3]R(L0RBDY!GX]UJK7
M%&&<ABMGJK">F2.GM2SS!B47V^%^VY)M5SLL8AZ-65B'":6T[HQID(1C7XQC
MGD@QN3N[G\LA&3%-@C!(&C(Z;`/I0Q$-L_\L[S]7CFK/C_UX`[?W/=IA&CR(
M=N<_H/V++-]#,NH\DN5[24:9'UC>S/L,VN5J\R";PP='_QN<#[P@A@Z!0QA,
MP&9JJPUY4_*N#U(M<X%;%INSJ]O,]$J5]U?9:!D-*P7&HC\6U\@:/L$7)NN@
MW24?22N?P/[FL/;Q7,F<PY,NH/V3S,WT@+1:"V<KVP7DYCE&N(>W?W&1*3$U
2U;PKPTXH/"[)5_MR+Q\@!@``
`
end

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2003-01-25 11:53 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2002-12-27 10:11 [patch] Fix for ATAPI CD/DVD-ROMs and burners with vt8235 (and other chipsets) Vojtech Pavlik
2002-12-28  0:51 ` Alan Cox
2003-01-06 20:42 ` AnonimoVeneziano
2003-01-06 23:42 ` AnonimoVeneziano
2003-01-19 14:57 ` AnonimoVeneziano
2003-01-20 15:07 ` AnonimoVeneziano
2003-01-25 12:02   ` Vojtech Pavlik

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