Date: Wed, 18 Nov 1998 23:10:46 -0700 From: Nate Williams <nate@mt.sri.com> To: Joao Carlos Mendes Luis <jonny@jonny.eng.br> Cc: roger@cs.strath.ac.uk (Roger Hardiman), mobile@FreeBSD.ORG Subject: Re: strange behavious of two PCMCIA modem cards Message-ID: <199811190610.XAA02387@mt.sri.com> In-Reply-To: <199811190205.AAA13111@roma.coe.ufrj.br> References: <364EF34C.446B@cs.strath.ac.uk> <199811190205.AAA13111@roma.coe.ufrj.br>
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> // I've got some strange results when hard coding IRQs for my PCMCIA cards. > // > // I have two PCMCIA modem cards, both the same make and they > // emulate a standard serial port. > // > // I tried Hard Coding the IRQs in pccard.conf, > // card "Nokia Mobile Phones" "DTP-2 ver II" > // config 0x20 "sio2" 10 > // config 0x20 "sio3" 11 > // > // and I compiled the kernel with SIO2 set to IRQ10 and SIO3 to IRQ11. > // This worked on 2.2.5+PAO but on 3.0-RELEASE, sio2 worked fine > // and sio3 worked but was "really slow" (like the IRQ was wrong). > // > // Changing to > // card "Nokia Mobile Phones" "DTP-2 ver II" > // config 0x20 "sio2" ? > // config 0x20 "sio3" ? > // and allowing the pccard software in 3.0-R to tell the sio driver > // the 'actual irqs' fixed everything. > // > // My question then is, why can I not hard code the IRQ. My guess is that on 3.0 something changed in the way the interrupts are being used, *OR* the probes have somehow awakened some part of your hardware that is using the IRQ in question. > Take a look at the output of pccardc dumpcis, and verify which are the > valid interrupts for config 0x20. Maybe irq 11 is not a valid one. > You cannot chose irqs on the fly if the card does not support them. Actually, the interrupts and the I/O ports the card's claim to use are completely irrelevant since the PCIC controller can map them to be anywhere. Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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