Skip to content

Interfaces cec_rpi

Jump to bottom
thica edited this page Jan 10, 2020 · 6 revisions

cec_rpi

CEC Control using the Raspberry PI. This interface sends command to the Raspberry PI CEC interface. Main purpose is to poweron or poweroff devices, but it supports the whole set of CEC commands. The interface s based on the TELNET interface, so all parameters from the telnet interface apply. In addition, the following parameters can be configured

Setting Description
Source Device Type The device type of the sender. Some CEC devices expect CEC commands only from selected device types. CEC has defined the following device types:
  • 0:TV
  • 1:Recording 1
  • 2:Recording 2
  • 3:Tuner 1
  • 4:Playback 1
  • 5:Audio system
  • 6:Tuner 2
  • 7:Tuner 3
  • 8:Playback 2
  • 9:Playback 3
  • A:Tuner 4
  • B:Playback 3
  • C:Reserved (C)
  • D:Reserved (D)
  • E:Reserved (E)
  • F:Unregistered'
Source Device ID The source device ID. Some devices only excepts CEC commands from specific IDs. This is vendor specific. Default is 00000
Destination Device Type The device type of the target. Some CEC devices expect CEC commands only if the target is selected properly. The device types are the same as shown in Source Device Type

You need to define the codeset filename, which contains the command set for your device

A codeset file could look like that (shortened version): 

<codeset>
<action string="codeset" name="power_off"    waitforresponse='0' cmd='echo "tx $cvar(TARGET) 36" | cec-client -s\r\n' />
<action string="codeset" name="power_on"     waitforresponse='0' cmd='echo "on $cvar(DESTTYPE)" |  cec-client -s\r\n' />
<action string="codeset" name="power_toggle" waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 40" | cec-client -s\r\n' />

<action string="codeset" name="power_toggle1" waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 6B" | cec-client -s\r\n' />
<action string="codeset" name="power_off1"   waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 6C" | cec-client -s\r\n' />
<action string="codeset" name="power_on1"    waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 6f" | cec-client -s\r\n' />

<action string="codeset" name='suspend'      waitforresponse='0' cmd='echo "on $cvar(DESTTYPE)" |  cec-client -s\r\n' />

<action string="codeset" name='menu'         waitforresponse='0' cmd='echo "tx $cvar(TARGET) 8D 00" | cec-client -s\r\n' />
<action string="codeset" name='ok'           waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 00" | cec-client -s\r\n' />
<action string="codeset" name='up'           waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 01" | cec-client -s\r\n' />
<action string="codeset" name='down'         waitforresponse='0' cmd='echo "tx $cvar(TARGET) 44 02" | cec-client -s\r\n' />
</codeset>
Attribute Description
action Defines, to which ORCA action the command should be send
getvar This defines, which information will be collected from the json respons., Only the last attribute will be used. If an attribute belongs to a list, only the first list entry is parsed.
ldestvar This defines, which variable should be set by the information parsed by getvar. This variable is local to the interface and local to the configuration
gdestvar This defines, which variable should be set by the information parsed by getvar. This variable is global to all ORCA functions
cmd This is the command to transmit using adb.

Variable replacement: You can use variable placeholder to use variables in your adb command string

var Description
var() Uses a global variable name to be replaced
lvar() Uses a language variable name to be replaced
cvar() Uses a local variable to be replaced

You can have as much actions as you like in your codeset file. You can use the same codeset file for several configurations. You should have a "ping" command in your codeset

Clone this wiki locally