If the hid-driver wants to send standardized data to the device it uses a
linux input_event. We forward this to the user-space transport-level
driver so they can perform the requested action on the device.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
HID core notifies us with *_open/*_close callbacks when there is an actual
user of our device. We forward these to user-space so they can react on
this. This allows user-space to skip I/O unless they receive an OPEN
event. When they receive a CLOSE event they can stop I/O again to save
energy.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We send UHID_START and UHID_STOP events to user-space when the HID core
starts/stops the device. This notifies user-space about driver readiness
and data-I/O can start now.
This directly forwards the callbacks from hid-core to user-space.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This adds a new event type UHID_INPUT which allows user-space to feed raw
HID reports into the HID subsystem. We copy the data into kernel memory
and directly feed it into the HID core.
There is no error handling of the events couldn't be parsed so user-space
should consider all events successfull unless read() returns an error.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
UHID_CREATE and UHID_DESTROY are used to create and destroy a device on an
open uhid char-device. Internally, we allocate and register an HID device
with the HID core and immediately start the device. From now on events may
be received or sent to the device.
The UHID_CREATE event has a payload similar to the data used by
Bluetooth-HIDP when creating a new connection.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When receiving messages from the HID subsystem, we need to process them
and store them in an internal buffer so user-space can read() on the char
device to retrieve the messages.
This adds a static buffer for 32 messages to each uhid device. Each
message is dynamically allocated so the uhid_device structure does not get
too big.
uhid_queue() adds a message to the buffer. If the buffer is full, the
message is discarded. uhid_queue_event() is an helper for messages without
payload.
This also adds a public header: uhid.h. It contains the declarations for
the user-space API. It is built around "struct uhid_event" which contains
a type field which specifies the event type and each event can then add a
variable-length payload. For now, there is only a dummy event but later
patches will add new event types and payloads.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Due to h/w bug in hsic controller, interrupts are disabled during
resume signalling (~20ms), commit: e404049ae, which may result in
below issues
1. Delayed MDP interrupts causing display stutters
2. Since default workqueue disables preemption for 20ms, the kernel
scheduler schedules out the worker thread for long time. It results
in MDM crash due to delayed response
To avoid busy loop, port resume is performed without disabling the
interrupts. Due to this if resume time constraint is not met then
don't start SOF and retry RESUME after some time. This delay (w/o SOF)
lets the device to enter SUSPEND state (after issuing remote wakeup)
and followed by RESUME after sometime. Also, Move the resume code to
hsic controller driver to avoid changes to ehci upstream code.
CRs-Fixed: 383752
Change-Id: Ic4768587bbb9a00d8cf495065ec9e14c46a5c1d4
Signed-off-by: Vamsi Krishna <vskrishn@codeaurora.org>
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Ajay Dudani <adudani@codeaurora.org>
ulpi_read() relies on jiffies to calculate the timeout
for read operation on phy register. Calling ulpi_read()
with interrupts disabled, freezes jiffies on local processor.
In case of phy lockup this results in infinite loop leading
to watchdog reset. Use loop counter for timeout instead of
jiffies for read operation to avoid watchdog reset.
CRs-Fixed: 388234
Change-Id: I1d46052b087c42b9f422b6f7eb691498fa104718
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Several changes are pending to be pulled in which are
not compatible with our changes. Specifically, a new
field to the allocation ioctl is added and the ioctl
numbers for cache flushing need to be changed.
Add these changes now until full changes can be pulled
in the future.
Change-Id: I9540495e25c7b6c414a6e3719f66f2cd9f78c585
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Ajay Dudani <adudani@codeaurora.org>
The thermal mitigation and battery temp control can overwrite
the ibat max value each other. So this patch remove the possibility
of overwrite ibat max value by mitigation and battery temp control.
Change-Id: Ib0f7bf2b8bd2e474d1d9c76bd5100b05310cb048
This patch solves the problem of recognize usb link when the TA is slow to
connect.
Change-Id: I9ebd118a53175a272117a75b5a5a1554da9c3d8b
Signed-off-by: Iliyan Malchev <malchev@google.com>
This is expected to prevent missing wireless charger state.
The bms needs to know if anything is connected to the wireless charging.
Change-Id: Ie97130cc515d19ab17b67267d9aca7588c1fff72
The battery temperature should be controlled for safty.
So this patch indroduce battery temperature control.
Change-Id: Ia00e7ce5bf697591be2da94f9a7c2960738642d5
We need to tune the board specific adcmap parameters
So need functions to set specific parameters.
void pm8xxx_set_adcmap_btm_threshold(void *pts, int size)
void pm8xxx_set_adcmap_pa_therm(void *pts, int size)
void pm8xxx_set_adcmap_ntcg_104ef_104fb(void *pts, int size)
Change-Id: Ie78c11f5fb998ecc456defa3c8e3e7a3e0b9b45f
An earlier commit(ec5b2f)increased the number of reserved fields
in the kernel standard fb.h header changing the struct size.
This caused issues with userland applications using the corresponding
bionic header. This patch revert the earlier increas in size
and makes corresponding adjustments to the reserved field usage.
A follow up patch will remove usage of reserved fields entirely.
During UVLO events the charger hardware may lock up
if it is in hardware clock switching mode.
To fix this add a battery alarm with a lower threshold
that disables hardware clock switching.
When the system is awake the resume callback ensures
that the charger is running off of the 19.2 MhZ clock
which does not allow the charger to lock up. Therefore
if the battery alarm wakes up the device before hitting
UVLO the charger hardware will not be in hardware clock
switching mode.
CRs-Fixed: 374607
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
Signed-off-by: Ajay Dudani <adudani@codeaurora.org>
Change-Id: I1bb20b2e7ff1a11f032b12b4abd4804ed130fe4a
To avoid dispalying garbage during lcd on/off, the turning on
lcd should be done before backlight on and turning off backlight
should be finished before lcd off. But current implementation
doesn't guarantee these on/off sequence. This patch ensure the
sequence of lcd and backligth on/off.
Change-Id: I11771d395c1a68b4e70b63639f50c773a665b441
Signed-off-by: Iliyan Malchev <malchev@google.com>
Conflicts:
drivers/video/msm/msm_fb.c
CABC(Content Adaptive Backlight Control) is supported by
mako lcd panel. So this patch enables it to reduce power
consumption.
Change-Id: I433281bc5fe4e638cfeba1beb9cb61e1775f3896
Use ARRAYED_TOUCH_FW_BIN feature to support both new(PLG137/0.9T)
and old(TM2000/0.55T) panels with one binary.
Firmware Verison: New - E003, Old - E059 (no change)
Change-Id: Ia96eba137f8a02054eb8067d47dc887edffb9970
- Let the low level driver pass tool type and use it
(Synaptics: PEN when major = 0, minor = 0, Other: FINGER)
- Split touch major and minor value to choose
circle vs. ellipse from platform datai
(Currently defined to support circle)
Change-Id: Ibd79efb5d88843174c45147a4c7ea170632c3fdb
The ghost function sets FORCE_FAST_RELAXATION and
FORCE_UPDATE registers, which cause touch abnormal function
after resume.
Also code clean up for register map initialization.
Change-Id: Ib442d4d7a2e995048fba902fe852a3851fdbf418
- not applied to hard key function, so removed hard key stuff
- jitter and accuracy filter function also changed but not used at the moment
- corrected some wrong error handling in touch_probe and synaptics_ts_probe
Change-Id: I1af3032612cdedbfac9da9c5df17eeb861344226
This driver supports the Qualcomm PNP clkdiv peripheral. It
allowed for configuring divide factors for various clock outputs
on the PMIC. The source clock is CXO.
The driver allows for configuration of the clkdiv device through
Device Tree. Some optional parameters may be specified instead at
runtime with the qpnp_clkdiv_config() API.
Change-Id: I393ed0e4389fb3c1dfe0bcdb40944102d2e09894
Signed-off-by: Michael Bohan <mbohan@codeaurora.org>
Add new driver to support AC3/EAC3 playback.
Change-Id: I217d354d80ce1848e1c552416045a31b54a4a994
Signed-off-by: Chaithanya Krishna Bacharaju <chaithan@codeaurora.org>
It was observed that while charging the reported soc sometimes reaches
100% before end of charging happens. At other times it does not reach
100% at end of charge and a abrupt jump to 100% soc happens.
Fix this by linearly increasing soc based on battery charge current
after constant voltage phase is reached. Constant voltage phase is
reached when battery voltage reaches the max value.
Also once constant voltage phase is reached and the voltage or charge
current decreases keep reporting the earlier soc. This could be because
of a transient system load.
Change-Id: I14c2f42d7897041db038ce85ce1124cf1ef261af
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Some USB cores have a separate IRQ line for issuing ASYNC
interrupts in LPM. This interrupt needs to be enabled only
when hardware is put in low power state.
Change-Id: Ie7de237ccbaa90294b20d3fce594ec280cb1641a
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
The "adjust_soc" algorithm where we change the open circuit voltage
(ocv) in steps so that the state of charge (soc) starts approaching
the estimated soc, causes nonlinearity in the soc curves if an incorrect
resistance value is fed to the algorithm.
As battery ages and temperature changes, it is hard to estimate the
exact battery resistance.
So to fix the nonlinearity, limit the amount by which the ocv is
changed. Make it proportional to the current, i.e. change ocv by
small amounts in light load and let it change by proportionally
large amounts in heavy load situations.
Also, make the point where the soc is adjusted configurable via platform
data instead of forcing it to 25%.
Change-Id: Idc141e6bf3172dab278afe1900f5a1f9cdd624dd
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Few platforms do not want to use the shutdown soc. Provide a option to
selectively disable it.
Change-Id: Ie57d474f4e81e4ce2e7e7a4a92cda20d4c8dd184
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
