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  1. 06 Feb, 2014 5 commits
    • Mauro Carvalho Chehab's avatar
      [media] DocBook: Add a description for the Remote Controller interface · 41950865
      Mauro Carvalho Chehab authored 
      Adds a missing section to describe the remote controller interface.

The DocBook is just addin the same documentation as written at
Documentation/ABI/testing/sysfs-class-rc, using the DocBook's
way, and dropping timestamps/contact info.

While that means that we'll have the same info on two parts, there
are parts of the remote controller interface that doesn't belong
at Documentation/ABI/, and it makes sense to have everything
on the same place. This also means that we'll need to manually
track to be sure that both places will be synchronized, but, as
it is not expected much changes on it, this sync can be done
manually.

It also adds an introduction that states that the IR is a normal
evdev/input interface, plus the sysfs class nodes.
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
      41950865
    • Mauro Carvalho Chehab's avatar
      [media] DocBook/media_api: Better organize the DocBook · 90f745ce
      Mauro Carvalho Chehab authored 
      All chapters/parts but Remote controllers have the revision
tags inside the body. Move those to remote_controllers.xml and
do some cleanup.

No functional changes.
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
      90f745ce
    • James Hogan's avatar
      [media] media: rc: change 32bit NEC scancode format · 18bc1744
      James Hogan authored 
      Change 32bit NEC scancode format (used by Apple and TiVo remotes) to
encode the data with the correct bit order. Previously the raw bits were
used without being bit reversed, now each 16bit half is bit reversed
compared to before.

So for the raw NEC data:
  (LSB/First) 0xAAaaCCcc (MSB/Last)
(where traditionally AA=address, aa=~address, CC=command, cc=~command)

We now generate the scancodes:
  (MSB) 0x0000AACC (LSB) (normal NEC)
  (MSB) 0x00AAaaCC (LSB) (extended NEC, address check wrong)
  (MSB) 0xaaAAccCC (LSB) (32-bit NEC, command check wrong)

Note that the address byte order in 32-bit NEC scancodes is different to
that of the extended NEC scancodes. I chose this way as it maintains the
order of the bits in the address/command fields, and CC is clearly
intended to be the LSB of the command if the TiVo codes are anything to
go by so it makes sense for AA to also be the LSB.

The TiVo keymap is updated accordingly.
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
      18bc1744
    • James Hogan's avatar
      [media] media: rc: add sysfs scancode filtering interface · 00942d1a
      James Hogan authored 
      Add and document a generic sysfs based scancode filtering interface for
making use of IR data matching hardware to filter out uninteresting
scancodes. Two filters exist, one for normal operation and one for
filtering scancodes which are permitted to wake the system from suspend.

The following files are added to /sys/class/rc/rc?/:
 - filter: normal scancode filter value
 - filter_mask: normal scancode filter mask
 - wakeup_filter: wakeup scancode filter value
 - wakeup_filter_mask: wakeup scancode filter mask

A new s_filter() driver callback is added which must arrange for the
specified filter to be applied at the right time. Drivers can convert
the scancode filter into a raw IR data filter, which can be applied
immediately or later (for wake up filters).
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: linux-media@vger.kernel.org
Cc: Rob Landley <rob@landley.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
      00942d1a
    • James Hogan's avatar
      [media] rc: ir-raw: Load ir-sharp-decoder module at init · 324a6673
      James Hogan authored 
      Commit 1d184b0b ([media] media: rc: add raw decoder for Sharp
protocol) added a new raw IR decoder for the sharp protocol, but didn't
add the code to load the module at init as is done for other raw
decoders, so add that code now.
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
      324a6673
  3. 04 Feb, 2014 35 commits
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