linux/drivers/input/mouse/psmouse-base.c, branch v4.5

Input: psmouse - rename ps2pp_init() to ps2pp_detect()

2015-12-17T23:24:37Z

This makes Logitech PS2++ protocol implementation consistent with the naming in other protocols. Also mark the stub as "static inline" Reviewed-by: Hans de Goede Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - limit protocols that we try on passthrough ports

2015-12-17T23:24:32Z

PS/2 protocol is slow, and using it with pass-through port (where we encapsulate PS/2 into PS/2) is slower yet so it takes quite a bit of time to do full protocol discovery for device attached to a pass-through port. However, so far we have not see anything but trackpoints or basic PS/2 mice on pass-through ports, so let's limit protocols that we probe there to Trackpoint, IntelliMouse Explorer, IntelliMouse, and bare PS/2 protocol, and avoid other extended protocols, such as Synaptics, ALPS, etc. Reviewed-by: Hans de Goede Reviewed-by: Pali Rohár Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - factor out common protocol probing code

2015-12-17T23:24:21Z

In preparation of limiting protocols that we try on pass-through ports, let's rework initialization code and factor common code into psmouse_try_protocol() that accepts protocol type (instead of detec() function pointer) and can, for most protocols, perform both detection and initialization. Note that this removes option of forcing Lifebook protocol on devices that are not recognized by lifebook_detect() as having the hardware, but I do not recall anyone using this option. Reviewed-by: Hans de Goede Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - move protocol descriptions around

2015-12-17T23:24:16Z

We move protocol descriptions and psmouse_find_by_type() and pmouse_find_by_name() so that we can use them without forward declarations in the subsequent patches. Reviewed-by: Hans de Goede Reviewed-by: Pali Rohár Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - clean up Cypress probe

2015-12-17T23:24:04Z

When Cypress protocol support is disabled cypress_init() is a stub that always returns -ENOSYS, so there is not point in testing for CONFIG_MOUSE_PS2_CYPRESS after we decided that we are dealing with a Cypress device. Also, we should only be calling cypress_detect() when set_properties argument is "true", like with other protocols. There is a slight change in behavior to make follow-up patches more uniform: when we detect Cypress but its initialization fails, instead of immediately returning PSMOUSE_PS2 protocol we now continue trying IntelliMouse [Explorer]. Given that Cypress devices only have issue with Sentelic probes probing Imtellimouse should be safe. Reviewed-by: Hans de Goede Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - rearrange Focaltech init code

2015-12-17T23:23:54Z

The fact that we were calling focaltech_init() even when Focaltech support is disabled was confusing. Rearrange the code so that if support is disabled we continue to fall through the rest of protocol probing code until we get to full reset that Focaltech devices need to work properly. Also, replace focaltech_init() with a stub now that it is only called when protocol is enabled. Reviewed-by: Hans de Goede Reviewed-by: Pali Rohár Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - fix comment style

2015-12-17T23:23:43Z

The module was using non-standard comment style with comment blocks often starting at the very beginning of a line instead of being aligned with the code. Let's switch to standard formatting. Reviewed-by: Hans de Goede Reviewed-by: Pali Rohár Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - use switch statement in psmouse_process_byte()

2015-12-17T23:23:34Z

Instead of a series mostly exclusive "if" statements testing protocol type of the mouse let's use "switch" statement. Reviewed-by: Hans de Goede Reviewed-by: Pali Rohár Tested-by: Marcin Sochacki Tested-by: Till Signed-off-by: Dmitry Torokhov

Input: psmouse - add small delay for IBM trackpoint pass-through mode

2015-08-26T20:14:25Z

There are trackpoint devices that fail to respond to the PS2 command PSMOUSE_CMD_GETID if immediately queried after the parent device is deactivated. Add a small delay for the hardware to get in a sane state before sending any PS2 commands. One example of such a system is: Lenovo ThinkPad X120e, model 30515QG synaptics: Touchpad model: 1, fw: 8.0, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x121c00, board id: 1811, fw id: 797391 Signed-off-by: Stefan Assmann Signed-off-by: Dmitry Torokhov

Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2015-07-01T17:49:25Z

Pull module updates from Rusty Russell: "Main excitement here is Peter Zijlstra's lockless rbtree optimization to speed module address lookup. He found some abusers of the module lock doing that too. A little bit of parameter work here too; including Dan Streetman's breaking up the big param mutex so writing a parameter can load another module (yeah, really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were appended too" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits) modules: only use mod->param_lock if CONFIG_MODULES param: fix module param locks when !CONFIG_SYSFS. rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() module: add per-module param_lock module: make perm const params: suppress unused variable error, warn once just in case code changes. modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'. kernel/module.c: avoid ifdefs for sig_enforce declaration kernel/workqueue.c: remove ifdefs over wq_power_efficient kernel/params.c: export param_ops_bool_enable_only kernel/params.c: generalize bool_enable_only kernel/module.c: use generic module param operaters for sig_enforce kernel/params: constify struct kernel_param_ops uses sysfs: tightened sysfs permission checks module: Rework module_addr_{min,max} module: Use __module_address() for module_address_lookup() module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING module: Optimize __module_address() using a latched RB-tree rbtree: Implement generic latch_tree seqlock: Introduce raw_read_seqcount_latch() ...