a6030fcc60
Here is a new version of the patch to support the Automata Sercos III PCI card driver. I now check that the IRQ is enabled before accepting the interrupt. I still use a logical OR to store the enabled interrupts and I've added a second use of a logical OR when restoring the enabled interrupts. I added an explanation of why I do this in comments at the top of the source file. Since I use a logical OR, I also removed the extra checks if the Interrupt Enable Register and ier0_cache are 0. Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
75 lines
2.4 KiB
Plaintext
75 lines
2.4 KiB
Plaintext
menuconfig UIO
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tristate "Userspace I/O drivers"
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depends on !S390
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default n
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help
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Enable this to allow the userspace driver core code to be
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built. This code allows userspace programs easy access to
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kernel interrupts and memory locations, allowing some drivers
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to be written in userspace. Note that a small kernel driver
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is also required for interrupt handling to work properly.
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If you don't know what to do here, say N.
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if UIO
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config UIO_CIF
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tristate "generic Hilscher CIF Card driver"
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depends on PCI
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default n
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help
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Driver for Hilscher CIF DeviceNet and Profibus cards. This
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driver requires a userspace component that handles all of the
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heavy lifting and can be found at:
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http://www.osadl.org/projects/downloads/UIO/user/cif-*
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To compile this driver as a module, choose M here: the module
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will be called uio_cif.
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config UIO_PDRV
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tristate "Userspace I/O platform driver"
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help
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Generic platform driver for Userspace I/O devices.
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If you don't know what to do here, say N.
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config UIO_PDRV_GENIRQ
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tristate "Userspace I/O platform driver with generic IRQ handling"
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help
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Platform driver for Userspace I/O devices, including generic
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interrupt handling code. Shared interrupts are not supported.
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This kernel driver requires that the matching userspace driver
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handles interrupts in a special way. Userspace is responsible
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for acknowledging the hardware device if needed, and re-enabling
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interrupts in the interrupt controller using the write() syscall.
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If you don't know what to do here, say N.
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config UIO_SMX
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tristate "SMX cryptengine UIO interface"
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default n
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help
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Userspace IO interface to the Cryptography engine found on the
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Nias Digital SMX boards. These will be available from Q4 2008
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from http://www.niasdigital.com. The userspace part of this
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driver will be released under the GPL at the same time as the
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hardware and will be able to be downloaded from the same site.
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If you compile this as a module, it will be called uio_smx.
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config UIO_SERCOS3
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tristate "Automata Sercos III PCI card driver"
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default n
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help
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Userspace I/O interface for the Sercos III PCI card from
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Automata GmbH. The userspace part of this driver will be
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available for download from the Automata GmbH web site.
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Automata GmbH: http://www.automataweb.com
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Sercos III interface: http://www.sercos.com
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If you compile this as a module, it will be called uio_sercos3.
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endif
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