linux-stable-rt/drivers/misc/carma/Kconfig

config CARMA_FPGA
	tristate "CARMA DATA-FPGA Access Driver"
	depends on FSL_SOC && PPC_83xx && MEDIA_SUPPORT && HAS_DMA && FSL_DMA
	select VIDEOBUF_DMA_SG
	default n
	help
	  Say Y here to include support for communicating with the data
	  processing FPGAs on the OVRO CARMA board.
misc: Add CARMA DATA-FPGA Access Driver This driver allows userspace to access the data processing FPGAs on the OVRO CARMA board. It has two modes of operation: 1) random access This allows users to poke any DATA-FPGA registers by using mmap to map the address region directly into their memory map. 2) correlation dumping When correlating, the DATA-FPGA's have special requirements for getting the data out of their memory before the next correlation. This nominally happens at 64Hz (every 15.625ms). If the data is not dumped before the next correlation, data is lost. The data dumping driver handles buffering up to 1 second worth of correlation data from the FPGAs. This lowers the realtime scheduling requirements for the userspace process reading the device. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 2011-02-11 21:34:29 +08:00			`config CARMA_FPGA`
			`tristate "CARMA DATA-FPGA Access Driver"`
			`depends on FSL_SOC && PPC_83xx && MEDIA_SUPPORT && HAS_DMA && FSL_DMA`
			`select VIDEOBUF_DMA_SG`
			`default n`
			`help`
			`Say Y here to include support for communicating with the data`
			`processing FPGAs on the OVRO CARMA board.`