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path: root/drivers/input/rmi4/rmi_f30.c
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2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-05Input: synaptics-rmi4 - convert irq distribution to irq_domainNick Dyer1-4/+5
Convert the RMI driver to use the standard mechanism for distributing IRQs to the various functions. Tested on: * S7300 (F11, F34, F54) * S7817 (F12, F34, F54) Signed-off-by: Nick Dyer <nick@shmanahar.org> Acked-by: Christopher Heiny <cheiny@synaptics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-10-27Input: synaptics-rmi4 - limit the range of what GPIOs are buttonsAndrew Duggan1-2/+3
By convention the first 6 bits of F30 Ctrl 2 and 3 are used to signify GPIOs which are connected to buttons. Additional GPIOs may be used as input GPIOs to signal the touch controller of some event (ie disable touchpad). These additional GPIOs may meet the criteria of a button in rmi_f30_is_valid_button() but should not be considered buttons. This patch limits the GPIOs which are mapped to buttons to just the first 6. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Reported-by: Daniel Martin <consume.noise@gmail.com> Tested-by: Daniel Martin <consume.noise@gmail.com> Acked-By: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-23Merge branch 'for-linus' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Fixes to various USB drivers to validate existence of endpoints before trying to use them, fixes to APLS v8 protocol, and a couple of i8042 quirks" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ALPS - fix trackstick button handling on V8 devices Input: ALPS - fix V8+ protocol handling (73 03 28) Input: sur40 - validate number of endpoints before using them Input: kbtab - validate number of endpoints before using them Input: hanwang - validate number of endpoints before using them Input: yealink - validate number of endpoints before using them Input: ims-pcu - validate number of endpoints before using them Input: cm109 - validate number of endpoints before using them Input: iforce - validate number of endpoints before using them Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list Input: synaptics-rmi4 - prevent null pointer dereference in f30 Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
2017-03-10Input: synaptics-rmi4 - prevent null pointer dereference in f30Benjamin Tissoires1-0/+4
If the platform data has f30_data.disable set, f30 in rmi_f30_config() might be null. Prevent a kernel oops by checking for non-null f30. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-01Input: rmi4 - f30: detect INPUT_PROP_BUTTONPAD from the button countBenjamin Tissoires1-2/+3
INPUT_PROP_BUTTONPAD is currently only set through the platform data. The RMI4 header doc says that this property is there to force the buttonpad property, so we also need to detect it by looking at the exported buttons count. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-09Input: synaptics-rmi4 - forward upper mechanical buttons to PS/2 guestBenjamin Tissoires1-16/+44
On the latest series of ThinkPads, the button events for the TrackPoint are reported through the touchpad itself as opposed to the TrackPoint device. In order to report these buttons properly, we need to forward them to the TrackPoint device and notify psmouse to send the button presses/releases. Signed-off-by: Lyude Paul <thatslyude@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-09Input: synaptics-rmi4 - clean up F30 implementationDmitry Torokhov1-182/+144
This patch does several cleanup changes to F30 code - switch to using BIT() macro - use DIV_ROUND_UP() where appropriate - factor out code setting up and reporting buttons - use single loop when reporting buttons: arithmetic is cheap compared to conditionals and associated branch misprediction. Tested-By: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-02Input: synaptics-rmi4 - store the attn data in the driverBenjamin Tissoires1-5/+6
Now that we have a proper API to set the attention data, there is no point in keeping it in the transport driver. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-11-30Input: synaptics-rmi4 - have only one struct platform dataBenjamin Tissoires1-5/+4
If struct rmi_device_platform_data contains pointers to other struct, it gets difficult to allocate a fixed size struct and copy it over between drivers. Change the pointers into a struct and change the code in rmi4 accordingly. Reviewed-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-11-08Input: synaptics-rmi4 - handle incomplete input dataAndrew Duggan1-0/+4
Commit 5b65c2a02966 ("HID: rmi: check sanity of the incoming report") added support for handling incomplete HID reports do to the input data being corrupted in transit. This patch reimplements this functionality in the function drivers so they can handle getting less valid data then they expect. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10Input: synaptics-rmi4 - add support for F30Andrew Duggan1-0/+407
RMI4 F30 supports input from clickpad buttons and controls LEDs located on the touchpad PCB. This patch adds support of the clickpad buttons and defers supporting LEDs for the future. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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