- 31 Jul, 2014 3 commits
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Fabio Estevam authored
We can annonate the suspend/resume functions with '__maybe_unused' and get rid of the ifdef, which makes the code smaller and simpler. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fabio Estevam authored
When a kernel has CONFIG_PM=y and CONFIG_PM_SLEEP=n the following warnings are seen: drivers/input/touchscreen/mcs5000_ts.c:252:12: warning: 'mcs5000_ts_suspend' defined but not used [-Wunused-function] static int mcs5000_ts_suspend(struct device *dev) ^ drivers/input/touchscreen/mcs5000_ts.c:262:12: warning: 'mcs5000_ts_resume' defined but not used [-Wunused-function] static int mcs5000_ts_resume(struct device *dev) Protect the suspend/resume functions with CONFIG_PM_SLEEP in order to fix these build warnings. Signed-off-by: -
Pramod Gurav authored
Input device must be released(input_free_device) when ads7846_probe_dt fails. This fixes the same by releasing resources on failure. Signed-off-by:
Pramod Gurav <pramod.gurav@smartplayin.com> Signed-off-by:
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- 28 Jul, 2014 6 commits
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Nick Dyer authored
By writing zero to both the active and idle cycle times the maXTouch device is put into a deep sleep mode when it consumes minimal power. It is unnecessary to change the configuration of any other objects (for example to disable T9 touchscreen). It is counterproductive to reset the chip on resume, it will result in a long delay. However it is necessary to issue a calibrate command after the chip has spent any time in deep sleep. This patch also deals with the situation where the power configuration is zero on probe, which would mean that the device never wakes up to execute commands. Signed-off-by:
Nick Dyer <nick.dyer@itdev.co.uk> Acked-by:
Benson Leung <bleung@chromium.org> Acked-by:
Yufeng Shen <miletus@chromium.org> Signed-off-by:
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Roger Quadros authored
Update the bindings for touchscreen size. Signed-off-by:
Roger Quadros <rogerq@ti.com> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Roger Quadros authored
Update the bindings for touchscreen size. Signed-off-by:
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Roger Quadros authored
Provide device tree support and binding information. Also provide support for a new chip "pixcir_tangoc". Signed-off-by:
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Roger Quadros authored
Some variants of the Pixcir touch controller support up to 5 simultaneous fingers and hardware tracking IDs. Prepare the driver for that. Signed-off-by:
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Roger Quadros authored
Switch to using the Type-B Multi-Touch protocol. Reviewed-by:
Henrik Rydberg <rydberg@euromail.se> Signed-off-by:
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- 26 Jul, 2014 16 commits
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Yunkang Tang authored
Such as found on the new Toshiba Portégé Z30-A and Z40-A. Signed-off-by:
Yunkang Tang <yunkang.tang@cn.alps.com> [hdegoede@redhat.com: Remove softbutton handling, this is done in userspace] [hdegoede@redhat.com: Report INPUT_PROP_BUTTONPAD] [hdegoede@redhat.com: Do not report fake PRESSURE, reporting BTN_TOUCH is enough] [hdegoede@redhat.com: Various cleanups / refactoring] Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
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Hans de Goede authored
So that decode functions can return a failure when appropriate. Signed-off-by:
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Hans de Goede authored
If we detect more then 2 fingers report 2 touches, rather then only reporting the upper left corner of the bounding box. Signed-off-by:
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Hans de Goede authored
Move all the semi-mt specific handling shared between the v3 and v4 handling code to a common helper function. Signed-off-by:
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Hans de Goede authored
For v3 protocol devices, use the more accurate single touch data when the mt data contains only one finger. Note the mt data reporting a finger count of 1 should never happen, but better safe then sorry. This brings the v3 bitmap handling in line with what the v4 code does, allowing to factor out the common bits into a helper function. Signed-off-by:
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Hans de Goede authored
When there are 2 fingers on the pad we don't know which one is which, so use input_mt_assign_slots to make sure the right set of coordinates ends up in the right slot. Besides ensuring things end up in the right slot, this also results in a nice cleanup, since sync_frame also handles non mt position and btn_touch reporting. Signed-off-by:
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Hans de Goede authored
This is a preparation patch for switching the DIY mt handling to using input_mt_assign_slots && input_mt_sync_frame. struct alps_fields is quite large, so while making changes to almost all uses of it lets put it in our priv data instead of on the stack. Having it in our priv data also allows using it directly for storing values which need to be cached, rather then having separate x, y, z, fingers, etc. copies in our priv data. Signed-off-by:
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Hans de Goede authored
This fixes 2 fingers at the same height or width on the touchpad getting reported at different y / x coordinates. Note num_bits is always at least 1. Signed-off-by:
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Hans de Goede authored
alps_process_bitmap was resetting the point bit-count as soon as it saw 2 0 bits in a row. This means that unless the high point actually is at the end of the bitmap, it would always get its num_bits set to 0. Instead reset num_bits to 0 on a 0->1 transition, so that with > 2 fingers we only count the number of bits occupied by the highest finger. Signed-off-by:
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Hans de Goede authored
Factor out the identical code for getting the bitmap points for x and y into a helper function. Signed-off-by:
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Hans de Goede authored
Rushmore models don't have the Y-axis data in the bitmap inverted. Since we now have 2 different Y orientations, make the Y bitmap data processing use a forward loop like the X bitmap data processing, unifying the 2, and invert the data later, except on Rushmore. So far no-one has noticed this because the synaptics driver only uses the non mt coordinates (except on clickpads, and there are no alps clickpads using process_bitmap). Signed-off-by:
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Hans de Goede authored
V3 models only report mt bitmap data when there are 2 or more fingers on the touchpad. So always generate 2 positions in alps_process_bitmap, and for v3 models only fall back to st data when there was no mt data in a mt packet (which should never happen). This fixes 2 finger scrolling not working when using 2 fingers close to each other. Signed-off-by:
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Yunkang Tang authored
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Pramod Gurav authored
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Dmitry Torokhov authored
wacom_wac.h will be moving to drivers/hid. Since we only need 3 definitions from it let's simply copy them over. Acked-by:
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- 24 Jul, 2014 3 commits
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Dmitry Torokhov authored
Wire up open/close so we do not try to send events until someone uses them; this also allows us to remove micro_ts_remove() and rely fully on managed resources. Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Dmitry Artamonow authored
This adds a driver for the touchscreen connected to the Atmel microcontroller on the iPAQ h3xxx series. Based on a driver from handhelds.org 2.6.21 kernel, written by Alessandro GARDICH, with the bulk of the code for the new input architecture rewritten by Dmitry Atamonow, and the final polish by Linus Walleij. Signed-off-by:
Alessandro GARDICH <gremlin@gremlin.it> Signed-off-by:
Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by:
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Dmitry Torokhov authored
Merge with mainline to bring in changes to MFD to allow merging ipaq-micro-ts driver.
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- 23 Jul, 2014 12 commits
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Nick Dyer authored
maXTouch chips allow the reading of multiple messages in a single I2C transaction, which reduces bus overhead and improves performance/latency. The number of messages available to be read is given by the value in the T44 object which is located directly before the T5 object. Signed-off-by:
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Nick Dyer authored
This is in preparation for support of the T44 message count object. Also, cache T5 address to avoid lookup on every interrupt cycle. Signed-off-by:
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Nick Dyer authored
By storing the previous T6 status byte multiple debug output of the same status can be suppressed (for example CFGERR). Signed-off-by:
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Nick Dyer authored
The T5 object may have various sizes depending on the objects used on the particular maXTouch chip and firmware version, therefore it can't be hardcoded in the driver. Allocate a buffer on probe instead. Signed-off-by:
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Nick Dyer authored
The MXT device may be in bootloader mode on probe, due to: 1) APP CRC failure, either: a) flash corruption b) bad power or other intermittent problem while checking CRC 2) If the device has been reset 10 or more times without accessing comms 3) Warm probe, device was in bootloader mode already This code attempts to recover from 1(b) and 3. There is an additional complexity: we have to try two possible bootloader addresses because the mapping is not one-to-one and we don't know the exact model yet. Signed-off-by:
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Nick Dyer authored
Later chips (for example mXT1664S) different mappings for bootloader addresses. This means that we must look at the family ID to determine which address to use. Signed-off-by:
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Nick Dyer authored
On a warm probe, the device might be in a state where an flash operation was not completed. Signed-off-by:
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Nick Dyer authored
If the bootloader on the touchscreen controller fails to initialise the firmware image, it stays in bootloader mode and reports a failure. It is possible to reflash a working firmware image from this state. Signed-off-by:
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Nick Dyer authored
By validating the checksum, we can identify if the configuration is corrupt. In addition, this patch writes the configuration in a short series of block writes rather than as many individual values. Signed-off-by:
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Nick Dyer authored
The existing implementation which encodes the configuration as a binary blob in platform data is unsatisfactory since it requires a kernel recompile for the configuration to be changed, and it doesn't deal well with firmware changes that move values around on the chip. Atmel define an ASCII format for the configuration which can be exported from their tools. This patch implements a parser for that format which loads the configuration via the firmware loader and sends it to the MXT chip. Signed-off-by:
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Stephen Warren authored
Signed-off-by:
Stephen Warren <swarren@nvidia.com> Signed-off-by:
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Benson Leung authored
Touchpads are pointers, so make sure to pass the correct values to input_mt_report_pointer_emulation(). Without this, tap-to-click doesn't work. Signed-off-by:
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