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path: root/drivers/input
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2012-07-24Input: synaptics - handle out of bounds values from the hardwareSeth Forshee
The touchpad on the Acer Aspire One D250 will report out of range values in the extreme lower portion of the touchpad. These appear as abrupt changes in the values reported by the hardware from very low values to very high values, which can cause unexpected vertical jumps in the position of the mouse pointer. What seems to be happening is that the value is wrapping to a two's compliment negative value of higher resolution than the 13-bit value reported by the hardware, with the high-order bits being truncated. This patch adds handling for these values by converting them to the appropriate negative values. The only tricky part about this is deciding when to treat a number as negative. It stands to reason that if out of range values can be reported on the low end then it could also happen on the high end, so not all out of range values should be treated as negative. The approach taken here is to split the difference between the maximum legitimate value for the axis and the maximum possible value that the hardware can report, treating values greater than this number as negative and all other values as positive. This can be tweaked later if hardware is found that operates outside of these parameters. BugLink: http://bugs.launchpad.net/bugs/1001251 Cc: stable@vger.kernel.org Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-24Input: wacom - add support to Cintiq 22HDPing Cheng
Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-24Input: add driver for FT5x06 based EDT displaysSimon Budig
This is a driver for the EDT "Polytouch" family of touch controllers based on the FocalTech FT5x06 line of chips. Signed-off-by: Simon Budig <simon.budig@kernelconcepts.de> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-24Merge branch 'next' into for-linusDmitry Torokhov
2012-07-25input: Add onkey support for 88PM80X PMICQiao Zhou
Add onkey support for MARVELL 88PM80X PMIC. Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "Trivial updates all over the place as usual." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (29 commits) Fix typo in include/linux/clk.h . pci: hotplug: Fix typo in pci iommu: Fix typo in iommu video: Fix typo in drivers/video Documentation: Add newline at end-of-file to files lacking one arm,unicore32: Remove obsolete "select MISC_DEVICES" module.c: spelling s/postition/position/g cpufreq: Fix typo in cpufreq driver trivial: typo in comment in mksysmap mach-omap2: Fix typo in debug message and comment scsi: aha152x: Fix sparse warning and make printing pointer address more portable. Change email address for Steve Glendinning Btrfs: fix typo in convert_extent_bit via: Remove bogus if check netprio_cgroup.c: fix comment typo backlight: fix memory leak on obscure error path Documentation: asus-laptop.txt references an obsolete Kconfig item Documentation: ManagementStyle: fixed typo mm/vmscan: cleanup comment error in balance_pgdat mm: cleanup on the comments of zone_reclaim_stat ...
2012-07-23Merge tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull arm-soc clk changes from Arnd Bergmann: "Clock support is moving to the clk subsystem. These tegra, omap and imx changes are for code that is still platform specific and not (yet) part of that subsystem." Fix up conflicts in arch/arm/mach-{imx/clk-imx51-imx53.c,omap2/Makefile} * tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits) ARM: imx: clk-imx31: Fix clock id for rnga driver ARM: imx: add missing item to the list of clock event modes ARM: i.MX5x CSPI: Fixed clock name for CSPI ARM: i.MX5x clocks: Fix GPT clocks ARM: i.MX5x clocks: Fix parent for PWM clocks ARM: i.MX5x clocks: Add EPIT support ARM: mx27: Reenable silicon version print ARM: clk-imx27: Fix rtc clock id ARM: tegra: Provide clock for only one PWM controller ARM: tegra: Fix PWM clock programming ARM: OMAP3+: clock33xx: Add AM33XX clock tree data ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file ARM: tegra: dma: rename driver name for clock to "tegra-apbdma" ARM: tegra: Remove second instance of uart clk crypto: add clk_prepare/clk_unprepare ASoC: tegra: add clk_prepare/clk_unprepare staging: nvec: add clk_prepare/clk_unprepare spi/tegra: add clk_prepare/clk_unprepare Input: tegra-kbc - add clk_prepare/clk_unprepare USB: ehci-tegra: add clk_prepare/clk_unprepare ...
2012-07-19input/serio/hp_sdc.c: remove IRQF_SAMPLE_RANDOM which is now a no-opTheodore Ts'o
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a no-op; interrupt randomness is now collected unconditionally in a very low-overhead fashion; see commit 775f4b297b. The IRQF_SAMPLE_RANDOM flag was scheduled to be removed in 2009 on the feature-removal-schedule, so this patch is preparation for the final removal of this flag. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-17Input: add MELFAS mms114 touchscreen driverJoonyoung Shim
This is a initial driver for new touchscreen chip mms114 of MELFAS. It uses I2C interface and supports 10 multi touch. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-17Input: add support for key scan interface of the LPC32xx SoCRoland Stigge
This is a driver for the key scan interface of the LPC32xx SoC Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-17Input: omap4-keypad - add device tree supportSourav Poddar
Add device tree support for omap4 keypad driver and update the Documentation with omap4 keypad device tree binding information. Tested on omap4430 sdp. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-17Merge tag 'imx-clk' of git://git.pengutronix.de/git/imx/linux-2.6 into next/clkArnd Bergmann
From Sascha Hauer <s.hauer@pengutronix.de>: i.MX clk noncritical fixes and updates * tag 'imx-clk' of git://git.pengutronix.de/git/imx/linux-2.6: ARM: imx: clk-imx31: Fix clock id for rnga driver ARM: imx: add missing item to the list of clock event modes ARM: i.MX5x CSPI: Fixed clock name for CSPI ARM: i.MX5x clocks: Fix GPT clocks ARM: i.MX5x clocks: Fix parent for PWM clocks ARM: i.MX5x clocks: Add EPIT support ARM: mx27: Reenable silicon version print ARM: clk-imx27: Fix rtc clock id Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-16input: ab8500-ponkey: Create AB8500 domain IRQ mappingLee Jones
Before we can use any domain allocated IRQ, we need to first create a map between the Hardware IRQ (hwirq) and the Linux Virtual IRQ (virq). We do this with a helper function provided by the AB8500 IRQ domain controller called ab8500_irq_get_virq(). We need to do this for both IRQs which the Power-On-Key driver uses; one for button press, the other for button depress. Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input layer fixes from Dmitry Torokhov: "The changes are limited to adding new VID/PID combinations to drivers to enable support for new versions of hardware, most notably hardware found in new MacBook Pro Retina boxes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xpad - add Andamiro Pump It Up pad Input: xpad - add signature for Razer Onza Tournament Edition Input: xpad - handle all variations of Mad Catz Beat Pad Input: bcm5974 - Add support for 2012 MacBook Pro Retina HID: add support for 2012 MacBook Pro Retina
2012-07-13Input: hanwang - add support for Art Master II tabletweixing
This change adds support for old Hanwang Art master II tablet Signed-off-by: weixing <weixing@hanwang.com.cn> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-13Input: spear_keyboard - reconfigure operating frequency on suspendShiraz Hashim
On some platform it may happen that the input clock to keyboard may change during suspend, thus impacting its wakeup capability. There is no means for keyboard driver to know this frequency before hand. Hence introduce a platform data 'suspended_rate' which indicates the frequency during suspend at which keyboard operates. Accordingly reprogram keyboard while going into suspend and restore original configuration at the time of resume. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-13Input: spear_keyboard - fix clock handling during suspend/resumeShiraz Hashim
SPEAr keyboard should normally disable clock during suspend and enable it during resume. For cases where it is expected to act as a wakeup source the clock can remain in the same state i.e. kept enabled if it is being used. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-12Input: xpad - add Andamiro Pump It Up padYuri Khan
I couldn't find the vendor ID in any of the online databases, but this mat has a Pump It Up logo on the top side of the controller compartment, and a disclaimer stating that Andamiro will not be liable on the bottom. Signed-off-by: Yuri Khan <yurivkhan@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-11Input: xpad - add signature for Razer Onza Tournament EditionIlia Katsnelson
Signed-off-by: Ilia Katsnelson <k0009000@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-11Input: xpad - handle all variations of Mad Catz Beat PadYuri Khan
The device should be handled by xpad driver instead of generic HID driver. Signed-off-by: Yuri Khan <yurivkhan@gmail.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-10Input: bcm5974 - Add support for 2012 MacBook Pro RetinaHenrik Rydberg
Add support for the 15'' MacBook Pro Retina model (MacBookPro10,1). Patch originally written by clipcarl (forums.opensuse.org). Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-09ARM: sa11x0/pxa: convert OS timer registers to IOMEMRussell King
Make the OS timer registers have IOMEM like properities so they can be passed to readl_relaxed/writel_relaxed() et.al. rather than being straight volatile dereferences. Add linux/io.h includes where required. linux/io.h includes added to arch/arm/mach-sa1100/cpu-sa1100.c, arch/arm/mach-sa1100/jornada720_ssp.c, arch/arm/mach-sa1100/leds-lart.c drivers/input/touchscreen/jornada720_ts.c, drivers/pcmcia/sa1100_shannon.c from Arnd. This fixes these warnings: arch/arm/mach-sa1100/time.c: In function 'sa1100_timer_init': arch/arm/mach-sa1100/time.c:104: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type arch/arm/mach-pxa/time.c: In function 'pxa_timer_init': arch/arm/mach-pxa/time.c:126: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-07Input: ff-memless - fix a couple min_t() castsDan Carpenter
envelope->attack_level is a u16 type. We're trying to clamp it here so it's between 0 and 0x7fff. Unfortunately, the cast to __s16 turns all the values larger than 0x7fff into negative numbers and min_t() thinks they are less than 0x7fff. envelope_level is an int so now we've got negative values stored there. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: synaptics - print firmware ID and board number at initDaniel Kurtz
Read the Firmware ID and Board Number from a synaptics device at init and display them in the system log. Device behavior is very board and firmware dependent. It may prove useful for users to include this information when providing bug reports or other feedback. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear_keyboard - generalize keyboard frequency configurationShiraz Hashim
Current implementation hard coded keyboard frequency configuration assuming input clock as fixed APB (83 MHz). Generalize the configuration using clock framework APIs. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear_keyboard - rename bit definitions to reflect registerShiraz Hashim
Rename bit definition macros to reflect keyboard registers clearly thus being more readable. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear_keyboard - use correct io accessorsShiraz Hashim
All SPEAr keyboard registers are 32 bit wide and are word aligned. This patch aligns all io access to be word size using relaxed version of readl/writel. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear-keyboard - fix disable device_init_wakeup in removeVipul Kumar Samar
This patch is to disable device wakeup while removing keyboard. Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: wacom_i2c - fix compiler warningDmitry Torokhov
Apparently GCC can't figure out that we bail if we fail to query device and will not try to use 'features': drivers/input/touchscreen/wacom_i2c.c: In function ‘wacom_i2c_probe’: drivers/input/touchscreen/wacom_i2c.c:177:20: warning: ‘features.fw_version’ may be used uninitialized in this function [-Wmaybe-uninitialized] Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-07-07Pull input changes from Henrik Rydberg, including large update toDmitry Torokhov
atmel_mxt_ts driver by Daniel and MT protocol addition for win8 devices. Conflicts: drivers/input/touchscreen/atmel_mxt_ts.c
2012-07-07Merge branch 'for-linus' to bring in change ensuring that drivers thatDmitry Torokhov
use threaded IRQs use IRQF_ONESHOT.
2012-07-06Input: imx_keypad - check error returned by clk_prepare_enable()Fabio Estevam
Check error returned by clk_prepare_enable(). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-06Input: imx_keypad - adapt the new kpp clock nameFabio Estevam
With the new i.mx clock framework we should pass NULL as the keypad clock name. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-06Input: imx_keypad - use clk_prepare_enable/clk_disable_unprepare()Fabio Estevam
Adapt clock handling to the new i.mx clock framework and fix the following warning: input: imx-keypad as /devices/platform/imx-keypad/input/input0 ------------[ cut here ]------------ WARNING: at drivers/clk/clk.c:511 __clk_enable+0x98/0xa8() Modules linked in: [<c001a680>] (unwind_backtrace+0x0/0xf4) from [<c002452c>] (warn_slowpath_commo) [<c002452c>] (warn_slowpath_common+0x48/0x60) from [<c0024560>] (warn_slowpath_) [<c0024560>] (warn_slowpath_null+0x1c/0x24) from [<c02c4ec4>] (__clk_enable+0x9) [<c02c4ec4>] (__clk_enable+0x98/0xa8) from [<c02c4ef8>] (clk_enable+0x24/0x5c) [<c02c4ef8>] (clk_enable+0x24/0x5c) from [<c027ac6c>] (imx_keypad_open+0x28/0xc) [<c027ac6c>] (imx_keypad_open+0x28/0xc8) from [<c0274b14>] (input_open_device+0) [<c0274b14>] (input_open_device+0x78/0xa8) from [<c01ec884>] (kbd_connect+0x60/) [<c01ec884>] (kbd_connect+0x60/0x80) from [<c0273b94>] (input_attach_handler+0x) [<c0273b94>] (input_attach_handler+0x220/0x258) from [<c02755d4>] (input_regist) [<c02755d4>] (input_register_device+0x31c/0x390) from [<c038da1c>] (imx_keypad_) [<c038da1c>] (imx_keypad_probe+0x2e4/0x3b8) from [<c020326c>] (platform_drv_pro) [<c020326c>] (platform_drv_probe+0x18/0x1c) from [<c0201f64>] (driver_probe_dev) [<c0201f64>] (driver_probe_device+0x84/0x210) from [<c020217c>] (__driver_attac) [<c020217c>] (__driver_attach+0x8c/0x90) from [<c02008f8>] (bus_for_each_dev+0x) [<c02008f8>] (bus_for_each_dev+0x68/0x90) from [<c0201064>] (bus_add_driver+0xa) [<c0201064>] (bus_add_driver+0xa4/0x23c) from [<c020275c>] (driver_register+0x7) [<c020275c>] (driver_register+0x78/0x12c) from [<c00087c0>] (do_one_initcall+0x) [<c00087c0>] (do_one_initcall+0x34/0x188) from [<c04b9310>] (kernel_init+0xe4/0) [<c04b9310>] (kernel_init+0xe4/0x1a8) from [<c0015bd8>] (kernel_thread_exit+0x0) ---[ end trace 1d550e891d03d7ce ]--- Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-06Input: ad7879 - add option to correct xy axisMichael Hennerich
Sebastian Zenker reported that driver swaps x and y samples when the touchscreen leads are connected in accordance with the datasheet specification. Transposed axis can be typically corrected by touch screen calibration however this bug also negatively influences touch pressure measurements. Add an option to correct x and y axis. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Reported-and-tested-by: Sebastian Zenker <sebastian.zenker@gmx.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-06Input: synaptics_usb - Remove TrackPoint name trailing whitespaceBob Ross
The USB TrackPoint name string contains a space at the trailing end that can cause confusion/difficulty when creating udev rules. Example: "Synaptics Inc. Composite TouchPad / TrackPoint (Stick) " This patch removes the trailing space. Signed-off-by: Bob Ross <pigiron@gmx.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input layer fixes from Dmitry Torokhov: "Two fixes for regressions in Wacom driver and fixes for drivers using threaded IRQ framework without specifying IRQF_ONESHOT." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: request threaded-only IRQs with IRQF_ONESHOT Input: wacom - don't retrieve touch_max when it is predefined Input: wacom - fix retrieving touch_max bug Input: fix input.h kernel-doc warning
2012-07-05Revert "Input: atmel_mxt_ts - warn if sysfs could not be created"Henrik Rydberg
Dmitry: I understand that I am a bit late to the party :) but I do not agree with this change. Failure to create attributes is not sometihng that user could cause (at least not easily) and thus would not be a setup issue but something more severe. I believe we should fail loading the driver so sysfs attribute breakage will be noticed as soon as possible, instead of discovering it much much later in the process. This reverts commit 639900380062ecd78ee8b265ea23929c565469b4. Requested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-07-04Merge commit 'v3.5-rc5' into nextDmitry Torokhov
2012-07-04Input: request threaded-only IRQs with IRQF_ONESHOTLars-Peter Clausen
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. This patch adds the IRQF_ONESHOT to input drivers where it is missing. Not modified by this patch are those drivers where the requested IRQ will always be a nested IRQ (e.g. because it's part of an MFD), since for this special case IRQF_ONESHOT is not required to be specified when requesting the IRQ. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-06-29Input: atmel_mxt_ts - parse T6 reportsDaniel Kurtz
The normal messages sent after boot or NVRAM update are T6 reports, containing a status, and the config memory checksum. Parse them and dump a useful info message. This patch tested on an MXT224E. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - send all MT-B slots in one input reportDaniel Kurtz
Each interrupt contains information for all contacts with changing properties. Process all of this information at once, and send it all in a a single input report (ie input events ending in EV_SYN/SYN_REPORT). This patch was tested using an MXT224E. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - use T9 reportid range to init number of mt slotsDaniel Kurtz
Atmel mxt devices can report one finger for each T9 reportid. Therefore, this range can be used to report the max number of MT-B slots to userspace instead of assuming a fixed 10. Note that mxt_initialized() must complete early, since the input_dev properties now depend on values in the object table. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - refactor reportid checking in mxt_interruptDaniel Kurtz
This small refactor is in preparation for checking more report types in the mxt_interrupt message processing loop. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - cache T9 reportid range when reading object tableDaniel Kurtz
Streamline interrupt processing by caching the T9 reportid range when first reading the object table. In the process, refactor reading the object descriptor table. First, since the object_table entries are now exactly the same layout in device memory and in the driver, allocate an appropriately sized array and fetch the entire table directly into it in a single i2c transaction. Since a 6 byte table object requires 10 bytes to read, doing this dramatically reduces overhead. Note: The cached T9 reportid's are initialized to 0, which is an invalid reportid. Thus, the checks in the interrupt handler will always fail for devices that do not support the T9 object. Therefore, after doing a firmware update, the old object table is destroyed and all cached object values are reset to 0, before reading the new object table, in case the new firmware does not have the old objects. This patch tested on an MXT224E. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - refactor when and how object table is freedDaniel Kurtz
The Object Table is freed in three cases: 1) When the driver is being removed. 2) In the error path of mxt_initialize(). 3) Just after a firmware update, when a new object table is about to be read. For cases 2 & 3, the driver is not immediately unloaded, so this patch refactors these cases to use a common cleanup function. It also refactors the mxt_initialize error paths to ensure that this cleanup happens. Note: mxt_update_fw_store() does not handle errors during mxt_initialize(). A proposed fix for this is in a subsequent patchset. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - add detail to touchevent debug messageDaniel Kurtz
Update the debug message: * print inidividual status bits * print the pressure value * use '%u' for unsigned quantities Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - simplify event reportingDaniel Kurtz
Instead of carrying around per-finger state in the driver instance, just report each finger as it arrives to the input layer, and let the input layer (evdev) hold the event state (which it does anyway). Note: this driver does not really do MT-B properly. Each input report (a group of input events followed by a SYN_REPORT) only contains data for a single contact. When multiple fingers are present on a device, each is properly reported in its own MT_SLOT. However, there is only ever one MT_SLOT per SYN_REPORT. This is fixed in a subsequent patch. This patch was tested with an mXT224E. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - add sysfs entries to read fw and hw versionDaniel Kurtz
Make firmware and hardware version strings available to userspace. This is useful, for example, to allow a userspace program to implement a firwmare update policy. Change-Id: I1eddb4bbf5f3f9ae6947a8528598973ddead18cf Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-06-29Input: atmel_mxt_ts - update driver ID info loggingDaniel Kurtz
Print unsigned values as '%u'. Also, parse and print the firmware version in its canonical format, as suggested by Nick Dyer. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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