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>
Now that we have proper managed API to create device attributes, let's
start using it instead of the manual unwinding.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work with const
attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
4777 480 0 5257 1489 drivers/input/rmi4/rmi_f01.o
File size After adding 'const':
text data bss dec hex filename
4817 416 0 5233 1471 drivers/input/rmi4/rmi_f01.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work with const
attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
5287 448 0 5735 1667 drivers/input/rmi4/rmi_f34.o
File size After adding 'const':
text data bss dec hex filename
5339 384 0 5723 165b drivers/input/rmi4/rmi_f34.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The F54 driver is currently only using the first 6 bytes of F54 so there is
no need to read all 27 bytes. Some Dell systems (Dell XP13 9333 and
similar) have an issue with the touchpad or I2C bus when reading reports
larger then 16 bytes. Reads larger then 16 bytes are reported in two HID
reports. Something about the back to back reports seems to cause the next
read to report incorrect data. This results in F30 failing to load and the
click button failing to work.
Previous issues with the I2C controller or touchpad were addressed in:
commit 5b65c2a029 ("HID: rmi: check sanity of the incoming report")
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=195949
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The 5th generation Thinkpad X1 Carbons use Synaptics touchpads accessible
over SMBus/RMI, combined with ALPS or Elantech trackpoint devices instead
of classic IBM/Lenovo trackpoints. Unfortunately there is no way for ALPS
driver to detect whether it is dealing with touchpad + trackpoint
combination or just a trackpoint, so we end up with a "phantom" dualpoint
ALPS device in addition to real touchpad and trackpoint.
Given that we do not have any special advanced handling for ALPS or
Elantech trackpoints (unlike IBM trackpoints that have separate driver and
a host of options) we are better off keeping the trackpoints in PS/2
emulation mode. We achieve that by setting serio type to SERIO_PS_PSTHRU,
which will limit number of protocols psmouse driver will try. In addition
to getting rid of the "phantom" touchpads, this will also speed up probing
of F03 pass-through port.
Reported-by: Damjan Georgievski <gdamjan@gmail.com>
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of printing bytes one by one, let's use %phN to print the buffer in
one go.
Also use hweight8 to count number of partitions instead of inspecting it
bit by bit.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Smatch doesn't like when we use "%02X" to print char types because,
what about if it's a negative?
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The polled firmware update proved unreliable when testing on S7817. Use
attention to signal commands are complete.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The data in F12_2D_Ctrl8 corresponds to the inactive border width used by
the RMI device. It is not in pixel units and should not be treated as a
clip value.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When IRQ handling was moved to rmi_driver in 3aeed5b the naming of the
interrupt changed from "rmi4_i2c" to "2-0020" (or similar). This patch
restores the previous behaviour and makes the interrupt easier to identify
in /proc/interrupts.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We are not registering drivers, but transport devices (AKA sensors), so
let's call them that.
Also let's rename "retval" to "error" in probe() functions as the variables
are used to store error codes.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no reason to copy structures field-by-filed when we can copy
elements at once.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The mapping table holds address in LE form, so we should convert it
to CPU when comparing it.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If rmi_enable_sensor() fails in rmi_driver_probe(), we should not return
immediately, but disable IRQs and tear down function list.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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
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>
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>
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>
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>
With CONFIG_SERIO=m, we get a build error for the rmi4-f03 driver,
added in linux-4.10:
warning: (HID_RMI) selects RMI4_F03 which has unmet direct dependencies (!UML && INPUT && RMI4_CORE && (SERIO=y || RMI4_CORE=SERIO))
drivers/input/built-in.o: In function `rmi_f03_attention':
rmi_f03.c:(.text+0xcfe0): undefined reference to `serio_interrupt'
rmi_f03.c:(.text+0xd055): undefined reference to `serio_interrupt'
drivers/input/built-in.o: In function `rmi_f03_remove':
rmi_f03.c:(.text+0xd115): undefined reference to `serio_unregister_port'
drivers/input/built-in.o: In function `rmi_f03_probe':
rmi_f03.c:(.text+0xd209): undefined reference to `__serio_register_port'
An earlier patch tried to fix this, but missed the HID_RMI driver that
does a 'select' on the F03 backend.
This adds a hidden Kconfig symbol that enforces 'serio' to be enabled
when RMI4-F03 is, which covers all cases.
Fixes: d7ddad0acc ("Input: synaptics-rmi4 - fix F03 build error when serio is module")
Fixes: c5e8848fc9 ("Input: synaptics-rmi4 - add support for F03")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fix to return error code -ENOMEM from the devm_kzalloc() error handling
case instead of 0, as done elsewhere in this function.
Fixes: 6bd0dcfacf ("Input: synaptics-rmi4 - factor out functions
from probe")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If a function needs to communicate with an other, it's better to have
a way to retrieve this other.
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>
These attributes provide various bits of information which may be enumerated
under the RMI4 protocol to user space.
This may be useful for displaying the particular version which is in use, or
selecting the correct firmware to flash.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The attribute returns the percentage complete. If the firmware update fails, it
reports a negative error code.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
These tests are reversed. A warning should be displayed if an error is
returned, not on success.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Declare device_type structures as const as they are only stored in the
type field of a device structure. This field is of type const, so add
const to declaration of device_type structures.
File size before:
text data bss dec hex filename
17184 1344 80 18608 48b0 drivers/input/input.o
File size after:
text data bss dec hex filename
17248 1280 80 18608 48b0 drivers/input/input.o
File size before:
text data bss dec hex filename
2355 384 8 2747 abb drivers/input/rmi4/rmi_bus.o
File size after:
text data bss dec hex filename
2483 264 8 2755 ac3 drivers/input/rmi4/rmi_bus.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If a function declares a variable to access a structure element,
use it conssistently.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The clip values need the same swapping as the maximum values if the
sensor axes are swapped.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input updates from Dmitry Torokhov:
"Small driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
Input: adxl34x - make it enumerable in ACPI environment
Input: ALPS - fix TrackStick Y axis handling for SS5 hardware
Input: synaptics-rmi4 - fix F03 build error when serio is module
Input: xpad - use correct product id for x360w controllers
Input: synaptics_i2c - change msleep to usleep_range for small msecs
Input: i8042 - add Pegatron touchpad to noloop table
Input: joydev - remove unused linux/miscdevice.h include
rmi_dev is currently being dereferenced before it null checked, however,
after deeper inspecting, rmi_dev can never be null, so just remove this
redundant check.
Fixes CoverityScan CID 1391218 ("Dereference before null check")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
version is a u8, the check for version > 0 means that version can only
be zero, so the subsequent check for version != 0 is never true and
hence is redudant code and can be removed.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no need to repeat "depends on RMI4_CORE" on every bit of RMI4
support, we can guard all of them at once with "if RMI4_CORE".
Also use tabs for F03 indentation.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Since F03 is a boolean, "depends" on symbols that can be modules
do not work quite right. We can enable F03 if SERIO is built-in or
if both RMI core and SERIO core are modules. If SERIO core is module,
but RMI is built-in, we'll get:
drivers/built-in.o: In function `rmi_f03_attention':
rmi_f03.c:(.text+0xf8ef8): undefined reference to `serio_interrupt'
rmi_f03.c:(.text+0xf8fbd): undefined reference to `serio_interrupt'
drivers/built-in.o: In function `rmi_f03_remove':
rmi_f03.c:(.text+0xf9082): undefined reference to `serio_unregister_port'
drivers/built-in.o: In function `rmi_f03_probe':
rmi_f03.c:(.text+0xf9260): undefined reference to `__serio_register_port'
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull input subsystem updates from Dmitry Torokhov:
- updated support for Synaptics RMI4 devices, including support for
SMBus controllers, firmware update support, sensor tuning, and PS/2
guest support
- ALPS driver now supports tracksticks on SS5 controllers
- i8042 now uses chassis info to skip selftest on Asus laptops as list
of individual models became too unwieldy
- miscellaneous fixes to other drivers
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (67 commits)
Input: imx6ul_tsc - generalize the averaging property
Input: drv260x - use generic device properties
Input: drv260x - use temporary for &client->dev
Input: drv260x - fix input device's parent assignment
Input: synaptics-rmi4 - add support for F34 V7 bootloader
Input: drv260x - fix initializing overdrive voltage
Input: ALPS - fix protcol -> protocol
Input: i8042 - comment #else/#endif of CONFIG_PNP
Input: lpc32xx-keys - fix invalid error handling of a requested irq
Input: synaptics-rmi4 - fix debug for sensor clip
Input: synaptics-rmi4 - store the attn data in the driver
Input: synaptics-rmi4 - allow to add attention data
Input: synaptics-rmi4 - f03 - grab data passed by transport device
Input: synaptics-rmi4 - add support for F03
Input: imx6ul_tsc - convert int to u32
Input: imx6ul_tsc - add mask when set REG_ADC_CFG
Input: synaptics-rmi4 - have only one struct platform data
Input: synaptics-rmi4 - remove EXPORT_SYMBOL_GPL for internal functions
Input: synaptics-rmi4 - remove mutex calls while updating the firmware
Input: drv2667 - fix misuse of regmap_update_bits
...
Port firmware update code from Samsung Galaxy S7 driver into
mainline framework.
This patch has been tested on Synaptics S7813.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The debug would only ever output zero for the clip information.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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>
The HID implementation of RMI4 provides the data during
the interrupt (in the input report). We need to provide
a way for this transport driver to provide the attention
data while calling an IRQ.
We use a fifo in rmi_core to not lose any incoming event.
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>
First check if there are data available passed by the transport device.
If data available use these data. If there are no data available
try to read the rmi block if dsata are passed this way.
This is the way the other rmi function handlers will do this.
This patch is needed on HID devices because the firmware reads F03 data
registers and adds them to the HID attention report. Reading those
registers from the driver after the firmware read them will result in
invalid data.
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This adds basic functionality for PS/2 passthrough on Synaptics
Touchpads using RMI4 through smbus.
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
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>
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>
those functions should not be used outside of rmi_core.ko.
There is no point in exporting them to the world.
It looks like rmi_read_pdt_entry() should be static too.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This partially reverts commit 29fd0ec2bd ("Input: synaptics-rmi4 -
add support for F34 device reflash")
irq_mutex should be used only to protect data->current_irq_mask, not
preventing incoming input to be processed while the upgrade of the
firmware is happening. We can simply disable the irqs when we don't
want them to interfere with the upgrade process.
Tested on S7300 and S7800 (with F34 v7 patch added)
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Set the .enabled boolean and trigger an event processing when enabling
for edge-triggered systems.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
