Spurious IRQ 7/ 5.0V card

gaurav dawra openapproject at hotmail.com
Tue Jul 27 16:58:39 EDT 2004


Hi

well thanx again for the reply, i guess it's frustating to keep trying just 
incase something works :-). Neways i will keep trying on this system. Mean 
while I came out with something interesting.

I loaded the "linksys wpc11" 5.0 V card with orinoco_cs.o driver and its 
working fine. System does not hang and i can do anything i can , it comes up 
with "wireless interface" eth1 and all is fine. But when i do dmesg 
"spurious 8259A IRQ 7" ,it is still there. But why only in this case it is 
not causing any trouble, as it is causing trouble while loading this card 
with  "hostap_cs.o" module.

Again just to be clear, i tried to load "linksys wpc11 " card with BOTH 
orinoco_cs and hostap_cs BUT it works only with orinoco_cs.o despite the 
Spurious IRQ 7 is there in dmesg in both the cases. Ahhhhh wried. What is 
the difference between both the drivers, is the way interrupts are handled 
in both drivers is very different. why the card only works with ORINOCO_cs 
driver.

FYI i have loaded this"linksys" card with hostap_cs on my laptop and it 
works but does not work on this PC104/PCMCIA adapter.Does my adapter do not 
like "hostap"?

I will appreciate if you, journi or pavel or any body else can able to 
suggest me something on this issue. Brian!! if possible cud you send me the 
'optional parameters' you used to load the "i82365.0" module in 
/etc/syconfig/pcmcia. I am also using 2.4.20 of redhat:-)

Thanx and have a good day!!

--Gaurav









>From: "Brian Sturgill" <zen_hacker at hotmail.com>
>To: openapproject at hotmail.com
>Subject: RE: Spurious IRQ 7/ 5.0V card
>Date: Mon, 26 Jul 2004 23:29:37 +0000
>
>You may be able to add some options when the module i82365 is loaded. Here 
>is a link explaining the options for the module i82365.o   
>http://www.rt.com/man/i82365.4.html
>
>The module can be loaded with otions and you can assign what IRQ the 
>controller gets and which interrupts it assigns to cards that are inserted. 
>On my redhat systems, the file for the pcmcia drives is 
>/etc/sysconfig/pcmcia . I'm not sure which distribution you are using. Look 
>over the link I sent you and try some of those options to the driver. 
>Hopefully something will work for you!!!!!! Sometimes embedded systems are 
>a bear to get going.
>
>Don't give up!!!! It took me three weeks of trying on my laptop in the 
>evenings to get it working!!!! That was just to get the PCMCIA driver to 
>load and see when cards were inserted.
>
>
>>From: "gaurav dawra" <openapproject at hotmail.com>
>>To: zen_hacker at hotmail.com
>>CC: hostap at shmoo.com
>>Subject: RE: Spurious IRQ 7/ 5.0V card
>>Date: Mon, 26 Jul 2004 23:17:58 +0000
>>
>>Well brian there is way to allot IRQ's but not for IRQ 7 as there was 
>>notthing mentioned in front. It is saying that select yes or no in bios. I 
>>did 'yes' and tried but still irq 7 (spurious irqi 7 came) with linksys 
>>wpc 11 card.
>>
>>Well but i find something interesting though, that if i try to load 
>>NETGEAR card which is again 5.0 card by doing .
>>
>>modprobe hostap
>>modprobe hostap_cs ignore_cis_vcc=1
>>
>>and now push the card in the socket.
>>
>>Do dmesg:
>>
>>No SPURIOUS IRQ 7 is found. But still the system hangs after abt some 
>>20-25 sec.I  Cannot do "iwconfig" but ifconfig for some time works fine, 
>>after that system halts or stalls.
>>
>>
>>Same with my earlier working, when i tried to load hostap using the above 
>>procedure :senao NL2511 card(3.3V) , no spurious IRQ 7 was found, but 
>>again the system just stalls. Nothing can be done except reboot.
>>
>>Is this a hint to the right direction, is there is some hope :)
>>
>>--Gaurav
>>
>>
>>>From: "Brian Sturgill" <zen_hacker at hotmail.com>
>>>To: openapproject at hotmail.com
>>>Subject: RE: Spurious IRQ 7/ 5.0V card
>>>Date: Mon, 26 Jul 2004 19:54:30 +0000
>>>
>>>Is there any way to set irq's in the bios on your embedded machine? That 
>>>may be your only hope. The bios may assign irq7 to the port whether you 
>>>tell linux to use it or not. There may be an update to the bios for the 
>>>board out there also. Let me know if you find anything in the bios...
>>>
>>>Brian
>>>
>>>
>>>>From: "gaurav dawra" <openapproject at hotmail.com>
>>>>To: jkmaline at cc.hut.fi
>>>>CC: hostap at shmoo.com
>>>>Subject: Spurious IRQ 7/ 5.0V card
>>>>Date: Mon, 26 Jul 2004 18:33:32 +0000
>>>>
>>>>Hey Jouni
>>>>
>>>>Here is what i did.I tried 5.0 V (COMPAQ WL11 card) with orinoco.o 
>>>>driver, it worked, just fine.
>>>>
>>>>But when i tried to put , NOT the same card but 5.0 V LINKSYS WPC11 card 
>>>>with hostap_cs.o using this:
>>>>
>>>>modprobe hostap
>>>>modprobe hostap_cs ignore_cis_vcc=1(just to play safe)
>>>>
>>>>I see modules are loaded:
>>>>
>>>>here is the dmesg :
>>>>Linux PCMCIA Card Services 3.2.7
>>>>kernel build: 2.4.20 #2 Tue Jun 21 06:36:59 MDT 2005
>>>>options:  [pci] [cardbus] [apm]
>>>>Intel ISA/PCI/CardBus PCIC probe:
>>>>Cirrus PD672x rev 00 ISA-to-PCMCIA at port 0x3e0 ofs 0x00
>>>>  host opts [0]: [ring] [65/6/3] [1/15/3]
>>>>  host opts [1]: [ring] [65/6/3] [1/15/3]
>>>>  ISA irqs (default) = 3,4,5,7,11 polling interval = 1000 ms
>>>>==>bridge is detected.
>>>>cs: memory probe 0x0d0000-0x0dffff: clean.
>>>>hostap_crypt: registered algorithm 'NULL'
>>>>hostap_cs: 0.2.1 - 2004-05-06 (Jouni Malinen <jkmaline at cc.hut.fi>)
>>>>hostap_cs: setting Vcc=33 (constant)
>>>>hostap_cs: CS_EVENT_CARD_INSERTION
>>>>hostap_cs: setting Vcc=50 (from config)
>>>>===>spurious 8259A interrupt:IRQ 7 <=========
>>>>Checking CFTABLE_ENTRY 0x01 (default 0x01)
>>>>io->flags = 0x0046, io.base=0x0000, len=64
>>>>cs: IO port probe 0x0100-0x037f: esxcluding 0x110-0x11f 0x378-ox37f
>>>>cs: IO port probe 0x0400-0x04ff: excluding 0x480-0x48f 0x4d0-0x4d7
>>>>cs: IO port probe 0x0a00-0x0aff: clean.
>>>>cs: IO port probe 0x0c00-0x0cff: clean.
>>>>hostap_cs: Registered netdevice wifi0
>>>>hostap_cs: index 0x01: Vcc 5.0, irq 3, io 0x0100-0x013f
>>>>prism2_hw_init: initialized in 200 ms
>>>>wifi0: NIC: id=0x801b v1.0.0
>>>>wifi0: PRI: id=0x15 v1.1.0
>>>>wifi0: STA: id=0x1f v1.4.2
>>>>wifi0: defaulting to host-based encryption as a workaround for firmware 
>>>>bug in Host AP mode WEP
>>>>wifi0: defaulting to bogus WDS frame as a workaround for firmware bug in 
>>>>Host AP mode WDS
>>>>wifi0: Warning: secondary station firmware version 1.4.2 does not seem 
>>>>to work in Host AP mode
>>>>wifi0: registered netdevice wlan0
>>>>
>>>>[root at localhost root]# ifconfig
>>>>eth0      Link encap:Ethernet  HWaddr 00:0D:56:3B:CE:61
>>>>         inet addr:153.90.196.95  Bcast:153.90.199.255  
>>>>Mask:255.255.248.0
>>>>         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>>>         RX packets:24327 errors:1 dropped:0 overruns:0 frame:1
>>>>         TX packets:1814 errors:0 dropped:0 overruns:0 carrier:1638
>>>>         collisions:0 txqueuelen:100
>>>>         RX bytes:4505465 (4.2 Mb)  TX bytes:278266 (271.7 Kb)
>>>>         Interrupt:11 Base address:0xe000 Memory:faffe000-fafff080
>>>>
>>>>lo        Link encap:Local Loopback
>>>>         inet addr:127.0.0.1  Mask:255.0.0.0
>>>>         UP LOOPBACK RUNNING  MTU:16436  Metric:1
>>>>         RX packets:3138 errors:0 dropped:0 overruns:0 frame:0
>>>>         TX packets:3138 errors:0 dropped:0 overruns:0 carrier:0
>>>>         collisions:0 txqueuelen:0
>>>>         RX bytes:265134 (258.9 Kb)  TX bytes:265134 (258.9 Kb)
>>>>
>>>>
>>>>NO WLAN0 Device registered. if i do 'iwconfig' IT JUST HANGS after this:
>>>>
>>>>[root at localhost root]# iwconfig
>>>>lo        no wireless extensions.
>>>>
>>>>eth0      no wireless extensions.
>>>>
>>>>Warning: Driver for device wifi0 has been compiled with version 14
>>>>of Wireless Extension, while this program is using version 15.
>>>>Some things may be broken...
>>>>
>>>>CUD NOT ABLE TO DO ANYTHING AFTER THIS, I HAVE TO RESTART THE SYSTEM
>>>>cardctl eject command will not even work.
>>>>( I am sending this email from some other computer)
>>>>---------------------------------
>>>>I DID THE SAME PROCEDURE WITH NETGEAR 5.0 V PCMCIA card with same 
>>>>results.
>>>>---------------------------------
>>>>NOW i tried to load the 3.3V card (Senao NL2511)
>>>>
>>>>modprobe hostap
>>>>modprobe hostap_cs ignore_cis_vcc=1
>>>>
>>>>hostap_cs: 0.2.2 - 2004-05-31 (Jouni Malinen <jkmaline at cc.hut.fi>)
>>>>hostap_cs: setting Vcc=33 (constant)
>>>>hostap_cs: CS_EVENT_CARD_INSERTION
>>>>hostap_cs: setting Vcc=50 (from config)
>>>>Checking CFTABLE_ENTRY 0x01 (default 0x01)
>>>>IO window settings: cfg->io.nwin=1 dflt.io.nwin=1
>>>>io->flags = 0x0046, io.base=0x0000, len=64
>>>>cs: IO port probe 0x0100-0x037f: esxcluding 0x110-0x11f 0x378-ox37f
>>>>cs: IO port probe 0x0400-0x04ff: excluding 0x480-0x48f 0x4d0-0x4d7
>>>>cs: IO port probe 0x0a00-0x0aff: clean.
>>>>cs: IO port probe 0x0c00-0x0cff: clean.
>>>>hostap_cs: Registered netdevice wifi0
>>>>hostap_cs: index 0x01: Vcc 5.0, irq 3, io 0x0100-0x013f
>>>>prism2_hw_init: initialized in 200 ms
>>>>==>NO SPURIOUS IRQ7 HERE<==
>>>>wifi0: NIC: id=0x800c v1.0.0
>>>>wifi0: PRI: id=0x15 v1.1.0
>>>>wifi0: STA: id=0x1f v1.4.9
>>>>wifi0: defaulting to bogus WDS frame as a workaround for firmware bug in 
>>>>Host AP mode WDS
>>>>wifi0: registered netdevice wlan0
>>>>
>>>>BUT if i do iwconfig    after this : it just HANGS.
>>>>------------------------------------
>>>>All i can do at this point is to restart the system.
>>>>
>>>>i looked into my /etc/pcmcia/config.opts file and the IRQ 7 is excluded 
>>>>, i also excluded IRQ from it.
>>>>and other which are excluded by default.
>>>>
>>>>i do not know how should i make this working. I believe there is 
>>>>something to do with the IRQ problem. As i also read your conversation 
>>>>earlier on SPURIOUS IRQ 7 with jun.
>>>>
>>>>
>>>>I hope i am more clear this time on what i am doing. All these cards 
>>>>which i tested above work fine with my laptop.
>>>>
>>>>I will appreciate some useful hints and the direction to move forward. 
>>>>Also just to mention if i start 'cardmgr' instead of loading modules 
>>>>using 'modprobe' system just hangs.
>>>>
>>>>I will be looking forward to some quick response.
>>>>
>>>>--Gaurav
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>From: Jouni Malinen <jkmaline at cc.hut.fi>
>>>>>To: hostap at shmoo.com
>>>>>Subject: Re: VCC_mismatch: VCC_ignore NOT working!!Help
>>>>>Date: Sun, 25 Jul 2004 07:58:34 -0700
>>>>>
>>>>>On Sun, Jul 25, 2004 at 07:58:58AM +0000, gaurav dawra wrote:
>>>>>
>>>>> > load it on a *PC104* module with PCMIA adpater on it.  Well bridge 
>>>>>from
>>>>> > ISA/PCMCIA has been detected and that adapter working fine with 
>>>>>orinoco
>>>>> > drivers but has some issues with hostap_cs driver. well i understand 
>>>>>a bit
>>>>>
>>>>> > I am using i82365 and ds module. I also tried to load the card with 
>>>>>this
>>>>> > "ignore_cis_vcc=1"
>>>>> > # Optional configuration parameters for hostap_cs.o
>>>>> > # module "hostap_cs" opts "channel=3 iw_mode=3 essid=test 
>>>>>ignore_cis_vcc=1"
>>>>> >
>>>>> > But it is still not working, well looking at 'dmesg' suggest that 
>>>>>there is
>>>>> > a clear VCC mismatch but why the vcc_ignore not working.
>>>>>
>>>>>How about sending that 'dmesg' output, too?
>>>>>
>>>>> > hostap_cs should ignore the vcc and load the services. The socket 
>>>>>does
>>>>> > support, "compaq WL110" based on hermes chipset and work with 
>>>>>'orinoco_cs.o
>>>>> > '  which is a 5.0 V card. But it does not work with hostap_cs with 
>>>>>Senao
>>>>> > Card. Why is VCC ignore not working?
>>>>>
>>>>>This is confusing.. Did you or did you not use the _same_ card with
>>>>>orinoco_cs.o when you mentioned above that the adapter was working? In
>>>>>other words, have been able to use any 3.3V card on this board with any
>>>>>driver?
>>>>>
>>>>>--
>>>>>Jouni Malinen                                            PGP id 
>>>>>EFC895FA
>>>>>_______________________________________________
>>>>>HostAP mailing list
>>>>>HostAP at shmoo.com
>>>>>http://lists.shmoo.com/mailman/listinfo/hostap
>>>>
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>>>
>>
>

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