linux-toradex.git/drivers/hid/hid-wiimote.c, branch v3.1

HID: wiimote: Add status and return request handlers

2011-08-23T08:55:45+00:00

The wiimote resets the current drm when an extension is plugged in.
Fortunately, it also sends a status report in this situation so we just
reset the drm on every status report to keep the drm consistent.

Also handle return reports from the wiimote which indicate success and
failure of requests that we've sent.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Add drm request

2011-08-23T08:55:34+00:00

The wiimote reports data in several data reporting modes (DRM). The DRM
request makes the wiimote send data in the requested drm.

The DRM mode can be set explicitely or can be chosen by the driver. To let
the driver choose the DRM mode, pass WIIPROTO_REQ_NULL placeholder to it. This
is no valid request and is replaced with an appropriate DRM.

Currently, the driver always sets the basic DRM_K mode, but this will be
extended when further peripherals like accelerometer and IR are supported.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Register led class devices

2011-08-23T08:55:21+00:00

This registers 4 led devices to allow controlling the wiimote leds via standard
LED sysfs API. It removes the four sysfs attributes so we don't have two APIs
for one device.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Correctly call HID open/close callbacks

2011-08-23T08:55:11+00:00

Even though the bluetooth hid backend does not react on open/close callbacks, we
should call them to be consistent with other hid drivers.

Also the new input open/close handlers will be used in future to prepare the
wiimote device for IR/extension input.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Simplify synchronization

2011-08-23T08:54:59+00:00

The new locking scheme in HID core allows us to remove a bit of synchronization.
Since the HID layer acts synchronously we simply register input core last and
there are no synchonization issues anymore.
Also register sysfs files after that to simplify the code.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Add sysfs support to wiimote driver

2011-07-11T12:30:24+00:00

Add sysfs files for each led of the wiimote. Writing 1 to the file
enables the led and 0 disables the led.

We do not need memory barriers when checking wdata->ready since we use
a spinlock directly after it.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Cache wiimote led state

2011-07-11T12:30:24+00:00

Save the current state of the leds in the wiimote data structure. This
allows us to discard new led requests that wouldn't change anything.
Protect the whole state structure by a spinlock. Every wiiproto_*
function expects this spinlock to be held when called.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Add wiimote led request

2011-07-11T12:30:23+00:00

Add new request that sets the leds on the target device. Also, per
default, set led1 after initializing a device.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Add wiimote input button parser

2011-07-11T12:30:23+00:00

Parse input report 0x30 from the wiimote as button input. We need to
send events for all buttons on every input report because the wiimote
does not send events for single buttons but always for all buttons
to us. The input layer, however, filters redundant events.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina

HID: wiimote: Add wiimote event handler

2011-07-11T12:30:23+00:00

Create array of all event handlers and call each handler when we
receive the related event.

Signed-off-by: David Herrmann 
Signed-off-by: Jiri Kosina