lwn.git/drivers/input/mouse/elan_i2c_i2c.c, branch docs-5.13

Input: elan_i2c - fix firmware update on newer ICs

2020-11-12T04:13:12+00:00

The argument to iap page type command depends on the firmware page size. Fixes: bfd9b92bc8f9 ("Input: elan_i2c - handle firmware updated on newer ICs") Signed-off-by: Jingle Wu Signed-off-by: Dmitry Torokhov

Input: elan_i2c - add support for high resolution reports

2020-07-21T17:11:18+00:00

Newer controllers (identified as "pattern" version 2) send higher resolution reports, with 16-bit X and Y coordinates (previous generations used 12-bit values). These new high resolution reports use report ID of 0x60. SMbus controllers use the same buffer size for both the new and old reports, and because of that high resolution reports no longer carry area of contact data with SMbus. Signed-off-by: Jingle Wu Link: https://lore.kernel.org/r/20200710054116.5529-1-jingle.wu@emc.com.tw Signed-off-by: Dmitry Torokhov

Input: elan_i2c - do not constantly re-query pattern ID

2020-07-21T00:35:31+00:00

We do not need to constantly re-query pattern ID, we can instead query it once and then pass to methods that need it. Signed-off-by: Dmitry Torokhov

Input: elan_i2c - handle firmware updated on newer ICs

2020-07-18T00:36:01+00:00

Newer ICs with IC type value starting with 0x0D and newer bootloader code use 128-byte firmware pages. Their bootloader also needs to be switched to proper mode before executing firmware update. Signed-off-by: Jingle Wu Signed-off-by: Dmitry Torokhov

Input: elan_i2c - add support for different firmware page sizes

2020-07-18T00:36:00+00:00

Prepare driver for devices that use different sizes of firmware pages. Signed-off-by: Jingle Wu Signed-off-by: Dmitry Torokhov

Input: elan_i2c - fix detecting IAP version on older controllers

2020-07-18T00:36:00+00:00

Older controllers in bootloader mode need a different command to retrieve the IAP version. Signed-off-by: Jingle Wu Link: https://lore.kernel.org/r/20200714105641.15151-1-jingle.wu@emc.com.tw Signed-off-by: Dmitry Torokhov

Input: elan_i2c - handle devices with patterns above 1

2020-07-18T00:35:59+00:00

Extend fetching and parsing parameters of the controllers to devices with "patterns" above 1 (which currently should be handled in the same fashion as devices with pattern 1). Signed-off-by: Jingle Wu Signed-off-by: Dmitry Torokhov

Input: elan_i2c - make fetching IC type of older controllers more robust

2020-07-18T00:35:58+00:00

On older controllers IC type is reported in the 2nd byte of ETP_I2C_OSM_VERSION_CMD, however if controller's firmware is not flashed correctly it may return incorrect data. Fortunately there is also ETP_I2C_IAP_VERSION_P0_CMD command that can be used when controller in either normal or IAP mode, and which is guaranteed to return accurate data, so let's use it. Signed-off-by: Jingle Wu Signed-off-by: Dmitry Torokhov

Input: elan_i2c - handle firmware not implementing "get pattern" command

2020-07-18T00:35:58+00:00

Not all versions of firmware implement "get pattern" command. When encountering those assume that the controllers use older pattern. Signed-off-by: Jingle Wu Signed-off-by: Dmitry Torokhov

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

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 Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman