ffa458c1bd
This is a driver for the ADS7846 touchscreen sensor, derived from the corgi_ts and omap_ts drivers. Key differences from those two: - Uses the new SPI framework (minimalist version) - <linux/spi/ads7846.h> abstracts board-specific touchscreen info - Sysfs attributes for the temperature and voltage sensors - Uses fewer ARM-specific IRQ primitives The temperature and voltage sensors show up in sysfs like this: $ pwd /sys/devices/platform/omap-uwire/spi2.0 $ ls bus@ input:event0@ power/ temp1 vbatt driver@ modalias temp0 vaux $ cat modalias ads7846 $ cat temp0 991 $ cat temp1 1177 $ So far only basic testing has been done. There's a fair amount of hardware that uses this sensor, and which also runs Linux, which should eventually be able to use this driver. One portability note may be of special interest. It turns out that not all SPI controllers are happy issuing requests that do things like "write 8 bit command, read 12 bit response". Most of them seem happy to handle various word sizes, so the issue isn't "12 bit response" but rather "different rx and tx write sizes", despite that being a common MicroWire convention. So this version of the driver no longer reads 12 bit native-endian words; it reads 16-bit big-endian responses, then byteswaps them and shifts the results to discard the noise. Signed-off-by: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
112 lines
2.7 KiB
Plaintext
112 lines
2.7 KiB
Plaintext
#
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# Mouse driver configuration
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#
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menuconfig INPUT_TOUCHSCREEN
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bool "Touchscreens"
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help
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Say Y here, and a list of supported touchscreens will be displayed.
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This option doesn't affect the kernel.
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If unsure, say Y.
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if INPUT_TOUCHSCREEN
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config TOUCHSCREEN_ADS7846
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tristate "ADS 7846 based touchscreens"
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depends on SPI_MASTER
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help
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Say Y here if you have a touchscreen interface using the
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ADS7846 controller, and your board-specific initialization
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code includes that in its table of SPI devices.
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If unsure, say N (but it's safe to say "Y").
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To compile this driver as a module, choose M here: the
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module will be called ads7846.
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config TOUCHSCREEN_BITSY
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tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
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depends on SA1100_BITSY
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select SERIO
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help
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Say Y here if you have the h3600 (Bitsy) touchscreen.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called h3600_ts_input.
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config TOUCHSCREEN_CORGI
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tristate "SharpSL (Corgi and Spitz series) touchscreen driver"
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depends on PXA_SHARPSL
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default y
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help
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Say Y here to enable the driver for the touchscreen on the
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Sharp SL-C7xx and SL-Cxx00 series of PDAs.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called corgi_ts.
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config TOUCHSCREEN_GUNZE
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tristate "Gunze AHL-51S touchscreen"
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select SERIO
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help
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Say Y here if you have the Gunze AHL-51 touchscreen connected to
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your system.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called gunze.
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config TOUCHSCREEN_ELO
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tristate "Elo serial touchscreens"
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select SERIO
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help
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Say Y here if you have an Elo serial touchscreen connected to
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your system.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called elo.
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config TOUCHSCREEN_MTOUCH
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tristate "MicroTouch serial touchscreens"
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select SERIO
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help
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Say Y here if you have a MicroTouch (3M) serial touchscreen connected to
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your system.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called mtouch.
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config TOUCHSCREEN_MK712
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tristate "ICS MicroClock MK712 touchscreen"
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help
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Say Y here if you have the ICS MicroClock MK712 touchscreen
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controller chip in your system.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called mk712.
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config TOUCHSCREEN_HP600
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tristate "HP Jornada 680/690 touchscreen"
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depends on SH_HP600 && SH_ADC
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help
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Say Y here if you have a HP Jornada 680 or 690 and want to
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support the built-in touchscreen.
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If unsure, say N.
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To compile this driver as a module, choose M here: the
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module will be called hp680_ts_input.
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endif
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