- 07 8月, 2020 1 次提交
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由 Colin Ian King 提交于
The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: NColin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200603135742.130852-1-colin.king@canonical.comSigned-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 19 7月, 2019 1 次提交
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由 Hui Wang 提交于
In the function alps_is_cs19_trackpoint(), we check if the param[1] is in the 0x20~0x2f range, but the code we wrote for this checking is not correct: (param[1] & 0x20) does not mean param[1] is in the range of 0x20~0x2f, it also means the param[1] is in the range of 0x30~0x3f, 0x60~0x6f... Now fix it with a new condition checking ((param[1] & 0xf0) == 0x20). Fixes: 7e4935cc ("Input: alps - don't handle ALPS cs19 trackpoint-only device") Cc: stable@vger.kernel.org Signed-off-by: NHui Wang <hui.wang@canonical.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 16 7月, 2019 1 次提交
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由 Hui Wang 提交于
On a latest Lenovo laptop, the trackpoint and 3 buttons below it don't work at all, when we move the trackpoint or press those 3 buttons, the kernel will print out: "Rejected trackstick packet from non DualPoint device" This device is identified as an alps touchpad but the packet has trackpoint format, so the alps.c drops the packet and prints out the message above. According to XiaoXiao's explanation, this device is named cs19 and is trackpoint-only device, its firmware is only for trackpoint, it is independent of touchpad and is a device completely different from DualPoint ones. To drive this device with mininal changes to the existing driver, we just let the alps driver not handle this device, then the trackpoint.c will be the driver of this device if the trackpoint driver is enabled. (if not, this device will fallback to a bare PS/2 device) With the trackpoint.c, this trackpoint and 3 buttons all work well, they have all features that the trackpoint should have, like scrolling-screen, drag-and-drop and frame-selection. Signed-off-by: NXiaoXiao Liu <sliuuxiaonxiao@gmail.com> Signed-off-by: NHui Wang <hui.wang@canonical.com> Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 19 6月, 2019 1 次提交
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由 Thomas Gleixner 提交于
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: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NEnrico Weigelt <info@metux.net> Reviewed-by: NKate Stewart <kstewart@linuxfoundation.org> Reviewed-by: NAllison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.deSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 16 6月, 2018 1 次提交
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由 Mauro Carvalho Chehab 提交于
As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked if the produced result is valid, removing a few false-positives. Acked-by: NTakashi Iwai <tiwai@suse.de> Acked-by: NMasami Hiramatsu <mhiramat@kernel.org> Acked-by: NStephen Boyd <sboyd@kernel.org> Acked-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: NMathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: NColy Li <colyli@suse.de> Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: NJonathan Corbet <corbet@lwn.net>
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- 24 4月, 2018 2 次提交
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由 Pali Rohár 提交于
According to documentation, all 7 lower bits represents trackpoint pressure. Fixes: 4621c966 ("Input: alps - report pressure of v3 and v7 trackstick") Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Pali Rohár 提交于
Remove cite "Not sure what this does, but it is absolutely essential". Extract initialization of trackstick part when touchpad is in passthrough mode for v3 and v6 protocols into own function. Initialization for v3 is: setscale11, setscale11, setscale11, nibble 0x9, nibble 0x4. Initialization for v6 is: setscale11, setscale11, setscale11, setrate 0xC8, setrate 0x14. Nibbles 0x9 and 0x4 for v3 protocol correspond to setrate 0xC8 and 0x14, therefore these sequences are same. When touchpad is in passthrough mode, then OS communicates with trackstick and this sequence is some magic vendor PS/2 command to put trackstick into "extended" mode. After that sequence trackstick starts reporting packets in some vendor 4 bytes format (first byte is always 0xE8). Next step after configuring trackstick to be in "extended" mode, is to configure touchpad for v3 protocol to expect that trackstick reports data in "extended" mode. For v3 protocol this is done by setting bit 1 in register 0xC2C8 (offset 0x08 from base address 0xC2C0). When both touchpad and trackstick are not configured for "extended" mode then touchpad reports trackstick packets in different format, which is not supported by psmouse/alps driver (yet). In Cirque documentation GP-AN- 130823 INTERFACING TO GEN4 OVER I2C (PDF) available at http://www.cirque.com/gen4-dev-resources is Logical Address 0xC2C8 named as PS2AuxControl and Bit Number 1 as ProcessAuxExtendedData with description: Auxiliary device data is assumed to be extended data when set. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 31 3月, 2018 1 次提交
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由 Masaki Ota 提交于
The primary interface for the touchpad device in Thinkpad L570 is SMBus, so ALPS overlooked PS2 interface Firmware setting of TrackStick, and shipped with TrackStick otp bit is disabled. The address 0xD7 contains device number information, so we can identify the device by checking this value, but to access it we need to enable Command mode, and then re-enable the device. Devices shipped in Thinkpad L570 report either 0x0C or 0x1D as device numbers, if we see them we assume that the devices are DualPoints. The same issue exists on Dell Latitude 7370. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196929 Fixes: 646580f793 ("Input: ALPS - fix multi-touch decoding on SS4 plus touchpads") Signed-off-by: NMasaki Ota <masaki.ota@jp.alps.com> Tested-by: NAaron Ma <aaron.ma@canonical.com> Tested-by: NJonathan Liu <net147@gmail.com> Tested-by: NJaak Ristioja <jaak@ristioja.ee> Cc: stable@vger.kernel.org Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 27 3月, 2018 1 次提交
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由 Pali Rohár 提交于
ALPS v3 and v7 packet formats reports trackstick pressure. This information is already parsed in unused "z" variable. ALPS SS4 S2 devices already reports trackstick pressure as ABS_PRESSURE attribute, therefore reports pressure in the same way also for v3 and v7. This patch also updates parsing v3 pressure information, it is also stored in 7 bits. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 03 2月, 2018 1 次提交
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由 Dmitry Torokhov 提交于
Many protocol driver re-implement code to parse buttons or motion data from the standard PS/2 protocol. Let's split the parsing into separate functions and reuse them in protocol drivers. Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 12 1月, 2018 1 次提交
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由 Nir Perry 提交于
The fix for handling two-finger scroll (i4a646580 - "Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad") introduced a minor "typo" that broke decoding of multi-touch events are decoded on some ALPS touchpads. For example, tapping with three-fingers can no longer be used to emulate middle-mouse-button (the kernel doesn't recognize this as the proper event, and doesn't report it correctly to userspace). This affects touchpads that use SS4 "plus" protocol variant, like those found on Dell E7270 & E7470 laptops (tested on E7270). First, probably the code in alps_decode_ss4_v2() for case SS4_PACKET_ID_MULTI used inconsistent indices to "f->mt[]". You can see 0 & 1 are used for the "if" part but 2 & 3 are used for the "else" part. Second, in the previous patch, new macros were introduced to decode X coordinates specific to the SS4 "plus" variant, but the macro to define the maximum X value wasn't changed accordingly. The macros to decode X values for "plus" variant are effectively shifted right by 1 bit, but the max wasn't shifted too. This causes the driver to incorrectly handle "no data" cases, which also interfered with how multi-touch was handled. Fixes: 4a646580 ("Input: ALPS - fix two-finger scroll breakage...") Signed-off-by: NNir Perry <nirperry@gmail.com> Reviewed-by: NMasaki Ota <masaki.ota@jp.alps.com> Cc: stable@vger.kernel.org Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 24 10月, 2017 1 次提交
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由 Kees Cook 提交于
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Signed-off-by: NKees Cook <keescook@chromium.org> Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 25 8月, 2017 1 次提交
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由 Masaki Ota 提交于
Fixed the issue that two finger scroll does not work correctly on V8 protocol. The cause is that V8 protocol X-coordinate decode is wrong at SS4 PLUS device. I added SS4 PLUS X decode definition. Mote notes: the problem manifests itself by the commit e7348396 ("Input: ALPS - fix V8+ protocol handling (73 03 28)"), where a fix for the V8+ protocol was applied. Although the culprit must have been present beforehand, the two-finger scroll worked casually even with the wrongly reported values by some reason. It got broken by the commit above just because it changed x_max value, and this made libinput correctly figuring the MT events. Since the X coord is reported as falsely doubled, the events on the right-half side go outside the boundary, thus they are no longer handled. This resulted as a broken two-finger scroll. One finger event is decoded differently, and it didn't suffer from this problem. The problem was only about MT events. --tiwai Fixes: e7348396 ("Input: ALPS - fix V8+ protocol handling (73 03 28)") Signed-off-by: NMasaki Ota <masaki.ota@jp.alps.com> Tested-by: NTakashi Iwai <tiwai@suse.de> Tested-by: NPaul Donohue <linux-kernel@PaulSD.com> Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 18 3月, 2017 2 次提交
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由 Masaki Ota 提交于
Alps stick devices always have physical buttons, so we should not check ALPS_BUTTONPAD flag to decide whether we should report them. Fixes: 4777ac22 ("Input: ALPS - add touchstick support for SS5 hardware") Signed-off-by: NMasaki Ota <masaki.ota@jp.alps.com> Acked-by: NPali Rohar <pali.rohar@gmail.com> Tested-by: NPaul Donohue <linux-kernel@PaulSD.com> Tested-by: NNick Fletcher <nick.m.fletcher@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Masaki Ota 提交于
Devices identified as E7="73 03 28" use slightly modified version of V8 protocol, with lower count per electrode, different offsets, and different feature bits in OTP data. Fixes: aeaa881f ("Input: ALPS - set DualPoint flag for 74 03 28 devices") Signed-off-by: NMasaki Ota <masaki.ota@jp.alps.com> Acked-by: NPali Rohar <pali.rohar@gmail.com> Tested-by: NPaul Donohue <linux-kernel@PaulSD.com> Tested-by: NNick Fletcher <nick.m.fletcher@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 08 3月, 2017 3 次提交
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由 Pali Rohár 提交于
Sort all devices in alps_model_data by signature and remove command_mode_resp which is not used anymore. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Pali Rohár 提交于
Support for devices with ALPS_PROTO_V9 is not implemented yet but we can detect these alps touchpads and warn users about it. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Pali Rohár 提交于
Like for other protocols create alps_v4_protocol_data and use it in alps_identify() function. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 22 1月, 2017 1 次提交
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由 Guenter Roeck 提交于
If a function declares a variable to access a structure element, use it consistently. Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 29 11月, 2016 3 次提交
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由 Paul Donohue 提交于
The return value of alps_get_pkt_id_ss4_v2() should really be "enum SS4_PACKET_ID", not "unsigned char". Correct this. Also, most of the Alps SS5 (SS4 v2) packet byte parsing code is implemented using macros, but there are a few places where bytes are directly manipulated in alps.c. For consistency, migrate the rest of these to macros. Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NPaul Donohue <linux-kernel@PaulSD.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Paul Donohue 提交于
For consistency and clarity, the input_report_*() functions should be called by alps_process_packet_ss4_v2() instead of by alps_decode_ss4_v2(). Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NPaul Donohue <linux-kernel@PaulSD.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Paul Donohue 提交于
The current Alps SS5 (SS4 v2) code generates bogus TouchPad events when TrackStick packets are processed. This causes the xorg synaptics driver to print "unable to find touch point 0" and "BUG: triggered 'if (priv->num_active_touches > priv->num_slots)'" messages. It also causes unexpected TouchPad button release and re-click event sequences if the TrackStick is moved while holding a TouchPad button. This commit corrects the problem by adjusting alps_process_packet_ss4_v2() so that it only sends TrackStick reports when processing TrackStick packets. Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NPaul Donohue <linux-kernel@PaulSD.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 05 10月, 2016 4 次提交
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由 Ben Gamari 提交于
Here we introduce logic in alps_identify to set the ALPS_DUALPOINT flag for touchpad hardware responding to E7 report with 73 03 28, as is found in the Dell Latitude E7470. Tested-by: NMichal Hocko <mhocko@suse.com> Signed-off-by: NBen Gamari <ben@smart-cactus.org> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Ben Gamari 提交于
The SS5 hardware can report this. Tested-by: NMichal Hocko <mhocko@suse.com> Signed-off-by: NBen Gamari <ben@smart-cactus.org> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Ben Gamari 提交于
While a button is held SS5 hardware will give us single-finger packets with x, y, and pressure equal to zero. This causes annoying jumps in pointer position if a touch is released while the button is held. Handle this by claiming zero contacts to ensure that no position events are provided to the user. Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Tested-by: NMichal Hocko <mhocko@suse.com> Signed-off-by: NBen Gamari <ben@smart-cactus.org> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Ben Gamari 提交于
Add touchstick support for the so-called SS5 hardware, which uses a variant of the SS4 protocol. Reviewed-by: NPali Rohár <pali.rohar@gmail.com> Tested-by: NMichal Hocko <mhocko@suse.com> Signed-off-by: NBen Gamari <ben@smart-cactus.org> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 07 1月, 2016 2 次提交
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由 Pali Rohár 提交于
This patch moves v3 pinnacle code for trackstick detection from alps_hw_init_v3() to alps_set_protocol() so ALPS_DUALPOINT flag can be cleared before registering trackstick input device in kernel. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Acked-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Pali Rohár 提交于
This patch adds detection of trackstick for v7 protocol devices. Code in this patch is used in official Dell touchpad linux drivers for Dell models: Dell Latitude E5250/5250, E5450/5450, E5550/5550 Detection code and base reg for alps v3 rushmore and v7 devices is exacly same. Also user in bug https://bugzilla.kernel.org/show_bug.cgi?id=94801 reported that Toshiba Sattellite Z30-A-1DG has only alps v7 touchpad device without trackstick and kernel reports to userspace also redundant trackstick device. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Reviewed-by: NHans de Goede <hdegoede@redhat.com> Tested-by: NAlex Hung <alex.hung@canonical.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 27 10月, 2015 1 次提交
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由 Hans de Goede 提交于
commit 92bac83d ("Input: alps - non interleaved V2 dualpoint has separate stick button bits") assumes that all alps v2 non-interleaved dual point setups have the separate stick button bits. Later we limited this to Dell laptops only because of reports that this broke things on non Dell laptops. Now it turns out that this breaks things on the Dell Latitude D600 too. So it seems that only the Dell Latitude D420/430/620/630, which all share the same touchpad / stick combo, have these separate bits. This patch limits the checking of the separate bits to only these models fixing regressions with other models. Reported-and-tested-by: NLarry Finger <Larry.Finger@lwfinger.net> Cc: stable@vger.kernel.org Tested-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Acked-By: NPali Rohár <pali.rohar@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 04 8月, 2015 1 次提交
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由 Hans de Goede 提交于
It turns out that only Dell laptops have the separate button bits for v2 dualpoint sticks and that commit 92bac83d ("Input: alps - non interleaved V2 dualpoint has separate stick button bits") causes regressions on Toshiba laptops. This commit adds a check for Dell laptops to the code for handling these extra button bits, fixing this regression. This patch has been tested on a Dell Latitude D620 to make sure that it does not reintroduce the original problem. Reported-and-tested-by: NDouglas Christman <douglaschristman@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 05 6月, 2015 1 次提交
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由 Hans de Goede 提交于
On some v7 devices (e.g. Lenovo-E550) the deltas reported are typically only in the 0-1 range dividing this by 2 results in a range of 0-0. And even for v7 devices where this does not lead to making the trackstick entirely unusable, it makes it twice as slow as before we added v7 support and were using the ps/2 mouse emulation of the dual point setup. If some kind of generic slowdown is actually necessary for some devices, then that belongs in userspace, not in the kernel. Cc: stable@vger.kernel.org Reported-and-tested-by: NRico Moorman <rico.moorman@gmail.com> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Reviewed-by: NBenjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 21 5月, 2015 8 次提交
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由 Hans de Goede 提交于
On v7 touchpads sometimes when 2 fingers are moved down on the touchpad until they "fall of" the touchpad, the second touch will report 0 for y (max y really since the y axis is inverted) and max x as coordinates, rather then reporting 0, 0 as is expected for a non touching finger. This commit detects this and treats these touches as non touching. See the evemu-recording here: https://bugzilla.redhat.com/attachment.cgi?id=1025058 BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1221200Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
Now that the generic process_bitmap function has been improved to offer accurate coordinates for the first touch we can use it for v5 (dolphin) touchpads too. Besides being a nice code cleanup this also fixes the saw tooth pattern in the coordinates for the second touch the dolphin specific version had. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
Rename alps_set_abs_params_mt to alps_set_abs_params_semi_mt, to make it clear that it is only (to be) used for semi-mt devices. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
With the recent process_bitmap() changes all semi-mt devices always report the first finger down in slot 0, so stop using input-mt finger tracking for these. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
All alps semi-mt touchpads give us the following data when 2 (or more) fingers are touching: 1 more or less accurate touch for the first finger down, and a bitmap with columns and rows in which 1 or more fingers are seen resulting in a crude (low res) bounding box. So far for v3, rushmore and v4 touchpads we've been reporting the coordinates of 2 opposite corners of the box when 2 fingers are touching. Ignoring the much better resolution data given in the normal position packet. This commit actually uses this data for the first touch, figures out which corner of the bounding box is closest to the first touch, and reports the coordinates of the opposite corner for the second touch, resulting in much better data for the first touch and for the single touch pointer-emulation events. This approach is similar to the one in alps_process_bitmap_dolphin, that function takes the single accurate touch info, calculates the distance to the center of the bounding box, and then puts the 2nd touch mirrored to the center. The downside of that approach is that if both touches move slowly in the same direction, the bounding box will stay the same for a while (as it is low res) and the second touch will thus been seen moving in the opposite direction until the bounding box actually changes, and then the second touch snaps to its new position resulting in a saw tooth pattern in the coordinates for the second touch, hence this new approach. This commit fixes 2 finger scrolling being choppy / jumpy on these touchpads. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
We should decode the position packet before the packet with the bitmap data. This way we can use the more accurate position info in process_bitmap() to get better results. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
Pinnacle / Rushmore packets contain either position info, or bitmap info, never both. So far we've in essence been storing garbage in the position / bitmap fields of the fields struct when decoding a bitmap / pos packet. We've been relying on the following sequence to get away with this: 1) Decode bitmap packet 2) Process bitmap packet 3) Decode position packet 4) Use position / button info This patch allows us to change this sequence, which will allow using the position info when processing the bitmap for more accurate results. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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由 Hans de Goede 提交于
Change alps_decode_rushmore to do all decoding itself, rather then relying on alps_decode_pinnacle and then overriding some fields + or-ing in some bits. This is a preparation patch for modifying the decode functions to properly differentiate between position and bitmap packets. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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- 13 4月, 2015 1 次提交
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由 Hans de Goede 提交于
Non interleaved V2 dualpoint touchpad / stick combos have separate stick button bits in the touchpad packets, if we do not check these then the trackpoint buttons will not work when using the touchpad, and when pressed when the user starts using the touchpad will report a release event even though the button is still pressed. This commit fixes this by checking the separate bits, note that we simply combine the buttons, since the hardware does the same when using the touchpad buttons with the trackpoint, so we do not have enough information to properly separate them. Reported-by: NHans de Bruin <jmdebruin@xmsnet.nl> Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
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