Date: Mon, 7 Aug 2006 12:43:38 -0700 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: Niki Denev <nike_d@cytexbg.com> Cc: freebsd-hackers@freebsd.org Subject: Re: linux ioremap equivalent on freebsd Message-ID: <20060807194337.GD99774@funkthat.com> In-Reply-To: <200608072203.56320.nike_d@cytexbg.com> References: <44D3C333.3030702@cytexbg.com> <200608071628.15316.nike_d@cytexbg.com> <20060807183406.GB99774@funkthat.com> <200608072203.56320.nike_d@cytexbg.com>
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Niki Denev wrote this message on Mon, Aug 07, 2006 at 22:03 +0300: > On Monday 07 August 2006 21:34, John-Mark Gurney wrote: > > Because for the most part it is only suppose to be used by MD code... > > > > The correct way to get device's memory is to use bus_alloc_resource_any... > > Make sure you review the handbook on device driver writing: > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/devicedriver > >s.html > > > > I did a presentation at BSDcan on writing devices drivers: > > http://people.freebsd.org/~jmg/drivers/ > > > > The handout is a cheat sheet of useful functions for writing a device > > driver... > > I'm looking at this right now :) Looks very useful, thanks! > > Just one more question to clear a little confusion on my side, > the device that i'm trying to write/port driver for is a cardbus device. > Do i have to do something specific about this, or can i get away with > accessing/using it as a plain PCI device? (yes, it appears as pci device to > the system, and is shown in pciconf) The only thing special that I believe you have to do is provide an additional DRIVER_MODULE line to attach to cardbus in addition to (or instead of) pci... For example: DRIVER_MODULE(re, pci, re_driver, re_devclass, 0, 0); DRIVER_MODULE(re, cardbus, re_driver, re_devclass, 0, 0); Warner is the expert on cardbus, so, if you have any questions, you could drop him an email.... Good luck! -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
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