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path: root/drivers/input/touchscreen
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2011-05-24Merge branch 'next' into for-linusDmitry Torokhov
2011-05-17Input: tsc2007 - add X, Y and Z fuzz factors to platform dataThierry Reding
These new platform-specific values can be used to set the fuzz parameter passed to the input_set_abs_params() function for the ABS_X, ABS_Y and ABS_PRESSURE axes. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-17Input: tsc2007 - add poll_period parameter to platform dataThierry Reding
This new parameter allows the polling frequency to be configured while keeping the default of once every millisecond. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-17Input: tsc2007 - add poll_delay parameter to platform dataThierry Reding
Depending on the quality of the touch panel, the time for the X-, X+, Y- and Y+ inputs to settle may vary. The poll_delay parameter can be used to override the default of 1 millisecond. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Kwangwoo Lee <kwangwoo.lee@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-17Input: tsc2007 - add max_rt parameter to platform dataThierry Reding
Finger touch events or very quick stylus events on low-quality panels can cause the tsc2007 to read bogus values. Looking at oscilloscope snapshots, this seems to be caused by the touch event disappearing during the measurements. These bogus values result in misclicks, where the X and Y values deviate from the real position. Most of these misclicks can be filtered out by setting a low enough threshold for the maximum resistance (which is loosely the inverse of the pressure) allowed to consider a set of values valid. Since this behaviour is largely dependent on the type and quality of the panel, this commit introduces the max_rt parameter. The default value is kept at MAX_12BIT. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-17Input: tsc2007 - debounce pressure measurementThierry Reding
When the controller signals a pen-down event via the platform-specific GPIO, while the sample values indicate an invalid measurement, the measurement needs to be repeated. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-14Input: atmel_tsadcc - correct call to input_free_deviceJulia Lawall
This error handling code can be reached before ts_dev->input is initialized, so it is safer to always use the original name, input_dev. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: ads7846 - fix gpio_pendown configurationIgor Grinberg
The pendown gpio was requested but not configured for input. Configure it for input. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: ads7846 - add possibility to use external vref on ads7846Alexander Stein
Just set vref_mv in your platform config to use external vref. Otherwise the internal one is used. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-05Input: ads7846 - remove unused variable from struct ads7845_ser_reqAlexander Stein
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-05Input: ads7846 - make transfer buffers DMA safeAlexander Stein
req.sample needs its own cacheline otherwise accessing req.msg fetches it in again. Note: This effect doesn't occur if the underlying SPI driver doesn't use DMA at all. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-03Input: h3600_ts_input - fix a leak of the IRQ during init failureAxel Lin
Make sure we are passing the same cookie in all calls to request_irq() and free_irq(). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: wm831x-ts - move BTN_TOUCH reporting to data transferMark Brown
Don't report BTN_TOUCH until we've got data as some less robust applications can be confused by getting a touch event by itself and it doesn't seem unreasonable for them to expect coordinates along with a touch. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: wm831x-ts - allow IRQ flags to be specifiedMark Brown
This allows maximum flexibility for configuring the direct GPIO based interrupts. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: wm831x-ts - fix races with IRQ managementMark Brown
If the WM831x pen down and data IRQs run in parallel it is possible for the data and pen down IRQs to deadlock themselves as one is part way through disabling its operation while the other is part way through enabling. Fix this by always disabling the pen down interrupt while data is active and vice versa. When a changeover is required we disable the IRQ that is to be stopped then schedule work that will enable the new IRQ. We need to handle the data flow in the data IRQ as the readback from the device needs to be ordered correctly with the IRQ for robust operation. This also fixes an issue when using the built in IRQs due to enable_irq() not being valid from interrupt context on an interrupt controller with bus operations like the built in IRQ controller - this issue may also have affected other interrupt controllers. We can't rely on having the data and pen down IRQs available via GPIOs on the CPU on every system. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-22Merge commit 'v2.6.39-rc4' into nextDmitry Torokhov
2011-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xen-kbdfront - fix mouse getting stuck after save/restore Input: estimate number of events per packet Input: evdev - indicate buffer overrun with SYN_DROPPED Input: document event types and codes and their intended use Input: add KEY_IMAGES specifically for AL Image Browser Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe() Input: h3600_ts - fix error handling at connect Input: twl4030_keypad - avoid potential NULL-pointer dereference
2011-04-12Input: atmel_mxt_ts - convert to MT protocol BJoonyoung Shim
Atmel touchscreen chips can use MT protocol B because they can assign unique id to ABS_MT_TRACKING_ID from finger id provided by hardware. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-12Input: atmel_mxt_ts - make CHG line high after enabling interruptsIiro Valkonen
Make the CHG line (interrupt line) go high after the interrupts have been enabled to make sure we don't miss the falling edge. Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com> Acked-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-12Input: atmel_mxt_ts - support 12bit resolutionJoonyoung Shim
Atmel touchscreen chip can support 12bit resolution and this patch modifies to get maximum x and y size from platform data. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Acked-by: Iiro Valkonen <iiro.valkonen@atmel.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-11Input: add driver for Maxim max11801 touchscreen controllerZhang Jiejing
Add MAXI max11801 resistive touchscreen controller driver. This driver uses Auto Mode and Aperture Mode. Support for other max1180x devices can be added to this driver as well, as they use almost the same register addresses and codes. You can find data sheet here: http://www.maxim-ic.com/datasheet/index.mvp/id/5943 Signed-off-by: Zhang Jiejing <jiejing.zhang@freescale.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-07Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
2011-04-06Input: h3600_ts - fix error handling at connectChristoph Fritz
In case of an error in h3600ts_connect(), deconstruct in correct order and with the right calls. Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: rpckbd - fix a leak of the IRQ during init failure Input: wacom - add support for Lenovo tablet ID (0xE6) Input: i8042 - downgrade selftest error message to dbg() Input: synaptics - fix crash in synaptics_module_init() Input: spear-keyboard - fix inverted condition in interrupt handler Input: uinput - allow for 0/0 min/max on absolute axes. Input: sparse-keymap - report KEY_UNKNOWN for unknown scan codes Input: sparse-keymap - report scancodes with key events Input: h3600_ts_input - fix a spelling error Input: wacom - report resolution for pen devices Input: wacom - constify wacom_features for a new missed Bamboo models
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-29drivers: Final irq namespace conversionThomas Gleixner
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-26Input: h3600_ts_input - fix a spelling errorSylvestre Ledru
Signed-off-by: Sylvestre Ledru <sylvestre.ledru@scilab.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: tsc2005 - fix locking issue Input: tsc2005 - use relative jiffies to schedule the watchdog Input: tsc2005 - driver should depend on GENERIC_HARDIRQS
2011-03-23Input: tsc2005 - fix locking issueAaro Koskinen
Commit 0b950d3 (Input: tsc2005 - add open/close) introduced a locking issue with the ESD watchdog: __tsc2005_disable() is calling cancel_delayed_work_sync() with mutex held, and the work also needs the same mutex. Fix the problem by using mutex_trylock() in tsc2005_esd_work(). If the mutex is taken, we know we are in the middle of disable or enable and the watchdog check can be skipped. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-23Input: tsc2005 - use relative jiffies to schedule the watchdogAaro Koskinen
Use relative jiffies to schedule the watchdog. Otherwise it will run like a mad one. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-23Input: tsc2005 - driver should depend on GENERIC_HARDIRQSGeert Uytterhoeven
drivers/input/touchscreen/tsc2005.c: In function ‘tsc2005_probe’: drivers/input/touchscreen/tsc2005.c:666: error: implicit declaration of function ‘set_irq_wake’ In addition, migrate from set_irq_wake() (marked "do not use" as of commit a0cd9ca2b907d7ee26575e7b63ac92dad768a75e ("genirq: Namespace cleanup")) to irq_set_irq_wake(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-19Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (64 commits) Input: tsc2005 - remove 'disable' sysfs attribute Input: tsc2005 - add open/close Input: tsc2005 - handle read errors from SPI layer Input: tsc2005 - do not rearm timer in hardirq handler Input: tsc2005 - don't use work for 'pen up' handling Input: tsc2005 - do not use 0 in place of NULL Input: tsc2005 - use true/false for boolean variables Input: tsc2005 - hide selftest attribute if we can't reset Input: tsc2005 - rework driver initialization code Input: tsc2005 - set up bus type in input device Input: tsc2005 - set up parent device Input: tsc2005 - clear driver data after unbinding Input: tsc2005 - add module description Input: tsc2005 - remove driver banner message Input: tsc2005 - remove incorrect module alias Input: tsc2005 - convert to using dev_pm_ops Input: tsc2005 - use spi_get/set_drvdata() Input: introduce tsc2005 driver Input: xen-kbdfront - move to drivers/input/misc Input: xen-kbdfront - add grant reference for shared page ...
2011-03-18Merge branch 'next' into for-linusDmitry Torokhov
2011-03-16Merge branch 'tsc2005' into nextDmitry Torokhov
2011-03-16Input: tsc2005 - remove 'disable' sysfs attributeDmitry Torokhov
I believe that enable/disable functionality should not be implemented on the individual driver level but rather in device core, potentially reusing parts of PM framework. Therefore the driver-specific "disable" attribute is removed from the mainline driver. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - add open/closeDmitry Torokhov
Introduce open and close methods for the input device to keep the device powered down when it is not in use. Also rework interaction between interrupt thread and starting/shutting off/resetting the device: instead of taking a mutex in the intterrupt thread and elsewhere disable interrupts before transitioning the device in a new state. The ESD handling is also separated from the IRQ thread; we poll regularly at a given interval and simply skip reads if we see that valid interrupt happened not so long ago. This allows us not cancel and reschedule ESD work from interrupt context all the time. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - handle read errors from SPI layerDmitry Torokhov
Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - do not rearm timer in hardirq handlerDmitry Torokhov
We will most likely rearm it yet again the IRQ thread so doing it here is pointless. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - don't use work for 'pen up' handlingDmitry Torokhov
We do not need process context to send input events so let's switch to a regular timer. I am going to get rid of taking ts->mutex in tsc2005_irq_thread() later. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - do not use 0 in place of NULLDmitry Torokhov
Sparse in unhappy when people use 0 instead of NULL for pointers so let's rework the way we initialize spi_transfer structure in tsc2005_cmd() and tsc2005_write(). Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - use true/false for boolean variablesDmitry Torokhov
Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - hide selftest attribute if we can't resetDmitry Torokhov
If implementation to perform self-test/reset has not been provided by the platform code hide 'selftest' sysfs attribute instead of returning error when someone tries to use it. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - rework driver initialization codeDmitry Torokhov
We need to make sure we have time/work initialized before requesting and enabling interrupts, otherwise we might start using them way too early. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - set up bus type in input deviceDmitry Torokhov
We know what bus we are residing on (SPI) so let's make this data available to the users. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - set up parent deviceDmitry Torokhov
Set up SPI device as parent of the input device so it gets placed into proper place in sysfs tree. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - clear driver data after unbindingDmitry Torokhov
We should not leave garbage pointers in driver structure after we unbind it from the device or if bind fails. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - add module descriptionDmitry Torokhov
Add proper module description so that it would show in 'modinfo' output. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - remove driver banner messageDmitry Torokhov
The boot process is noisy as it is and input core already announces all new device so let's get rid of the banner message in the driver. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - remove incorrect module aliasDmitry Torokhov
TSC2005 is not a platform driver so it should not define "platform:tsc2005" module alias. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-16Input: tsc2005 - convert to using dev_pm_opsDmitry Torokhov
Newer code should not be using legacy suspend/resume methods but rather supply dev_pm_ops structure as it allows better control over power management. Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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