linux-toradex.git/drivers/input/mouse/elan_i2c.h, branch v5.4-rc1 Linux kernel for Apalis and Colibri modules treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19T15:09:55+00:00 Thomas Gleixner tglx@linutronix.de 2019-06-04T08:11:33+00:00 d2912cb15bdda8ba4a5dd73396ad62641af2f520 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> 
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>
Input: elan_i2c_smbus - fix more potential stack buffer overflows 2018-06-22T00:20:41+00:00 Ben Hutchings ben.hutchings@codethink.co.uk 2018-06-19T18:17:32+00:00 50fc7b61959af4b95fafce7fe5dd565199e0b61a Commit 40f7090bb1b4 ("Input: elan_i2c_smbus - fix corrupted stack") fixed most of the functions using i2c_smbus_read_block_data() to allocate a buffer with the maximum block size. However three functions were left unchanged: * In elan_smbus_initialize(), increase the buffer size in the same way. * In elan_smbus_calibrate_result(), the buffer is provided by the caller (calibrate_store()), so introduce a bounce buffer. Also name the result buffer size. * In elan_smbus_get_report(), the buffer is provided by the caller but happens to be the right length. Add a compile-time assertion to ensure this remains the case. Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Commit 40f7090bb1b4 ("Input: elan_i2c_smbus - fix corrupted stack")
fixed most of the functions using i2c_smbus_read_block_data() to
allocate a buffer with the maximum block size.  However three
functions were left unchanged:

* In elan_smbus_initialize(), increase the buffer size in the same
  way.
* In elan_smbus_calibrate_result(), the buffer is provided by the
  caller (calibrate_store()), so introduce a bounce buffer.  Also
  name the result buffer size.
* In elan_smbus_get_report(), the buffer is provided by the caller
  but happens to be the right length.  Add a compile-time assertion
  to ensure this remains the case.

Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 Input: elan_i2c - support touchpads with two physical buttons 2017-08-19T00:07:02+00:00 KT Liao kt.liao@emc.com.tw 2017-08-18T23:49:53+00:00 991368818df4a50f50d2ce673b308f946ed635a6 Elan touchpads on Asus ROG G752xx series laptops have 2 physical buttons. Luckily we can query the touchpad to see if it is a clickpad variant and adjust the behavior accordingly. Signed-off-by: KT Liao <kt.liao@emc.com.tw> Tested-by: Maxime Bellengé <maxime.bellenge@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Elan touchpads on Asus ROG G752xx series laptops have 2 physical buttons.
Luckily we can query the touchpad to see if it is a clickpad variant and
adjust the behavior accordingly.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Tested-by: Maxime Bellengé <maxime.bellenge@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 Input: elan_i2c - add support for fetching chip type on newer hardware 2017-05-12T00:44:23+00:00 KT Liao ktalex.liao@gmail.com 2016-11-28T04:59:29+00:00 a2eaf299d134cfe780c68c771f88d81516c1e70d Newer Elantech hardware requires different way of fetching chip type and version data. Signed-off-by: KT Liao <kt.liao@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Newer Elantech hardware requires different way of fetching chip type and
version data.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: elan_i2c - expand maximum product_id form 0xFF to 0xFFFF 2015-09-21T16:32:40+00:00 Duson Lin dusonlin@emc.com.tw 2015-09-21T16:26:46+00:00 ed75a14eb554995c522a3b861d4c86a7eddb2ad7 In order to support more projects in the future, we expand the maximum product_id value form 0xFF to 0xFFFF. Signed-off by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
In order to support more projects in the future, we expand the
maximum product_id value form 0xFF to 0xFFFF.

Signed-off by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 Input: elan_i2c - add product IDs FW names 2015-06-09T00:12:25+00:00 Charlie Mooney charliemooney@chromium.org 2015-06-08T23:48:23+00:00 7b9f1830745cb3ad9e0f3774e83900610cedd39c Previously the elan_i2c touchpad driver would simply request the firmware "/lib/firmware/elan_i2c.bin", which does not work well if there are multiple such devices in the system. Let's append the "product ID" (by using the same function as the sysfs interface for consistency) to the filename. This results in filenames of the form "/lib/firmware/elan_i2c_72.0.bin", allowing you to support multiple elan_i2c touchpads on the same device by simply naming each device's FW with its corresponding product ID. This way when you trigger a fw update the driver will load the correct binary. Signed-off-by: Charlie Mooney <charliemooney@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Previously the elan_i2c touchpad driver would simply request the firmware
"/lib/firmware/elan_i2c.bin", which does not work well if there are
multiple such devices in the system.

Let's append the "product ID" (by using the same function as the sysfs
interface for consistency) to the filename.  This results in filenames of
the form "/lib/firmware/elan_i2c_72.0.bin", allowing you to support
multiple elan_i2c touchpads on the same device by simply naming each
device's FW with its corresponding product ID.  This way when you trigger a
fw update the driver will load the correct binary.

Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: elan_i2c - add support for multi IC type and iap format 2015-06-09T00:12:24+00:00 Duson Lin dusonlin@emc.com.tw 2015-06-08T23:39:35+00:00 12018ac3d679d6a3c6c738ac805797fe4dd43912 In order to support multiple IC types for i2c/smbus protocol, add get ic type command and use this data when checking firmware page count and signature address. Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
In order to support multiple IC types for i2c/smbus protocol, add get ic
type command and use this data when checking firmware page count and
signature address.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: elan_i2c - adjust for newer firmware pressure reporting 2015-04-14T17:21:42+00:00 duson dusonlin@emc.com.tw 2015-04-12T23:01:05+00:00 b9bced0eecd77067f4659b90d5ab2fb32485c3e2 Get pressure format flag from firmware to check if we need to normalize pressure data before reporting it. Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Get pressure format flag from firmware to check if we need to normalize
pressure data before reporting it.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: elan_i2c - fix typo in include header guard 2015-03-19T19:16:18+00:00 Nicolas Iooss nicolas.iooss_linux@m4x.org 2015-03-19T16:13:34+00:00 61c797d52dae232a4636888f71c45119a7853d7e Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Fixes: 6696777c6506 ("Input: add driver for Elan I2C/SMbus touchpad") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Fixes: 6696777c6506 ("Input: add driver for Elan I2C/SMbus touchpad")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: elan_i2c - verify firmware signature applying it 2015-01-23T17:44:21+00:00 Duson Lin dusonlin@emc.com.tw 2015-01-23T17:35:07+00:00 bb03bf3f8427a38112819061fc8688999ba02f67 To allow for different firmware sizes let's replace the original size check with with checking the signature in the firmware data. Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
To allow for different firmware sizes let's replace the original size check
with with checking the signature in the firmware data.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>