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LibCEC on Raspberry Pi
source link: https://oopsmonk.github.io/posts/2015-11-03-libcec-on-raspberry-pi/
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LibCEC on Raspberry Pi
November 3, 2015 · 11 min · oopsmonk | Suggest Changes
Install requirements#
sudo apt-get install build-essential autoconf liblockdev1-dev \
libudev-dev git libtool pkg-config cmake libxrandr-dev -y
Python and Swing support (Optional)
sudo apt-get install python-dev swig -y
Checkout and build libcec source code#
The current version is libcec-3.0.1, but I got an error as follows:
make[2]: *** No rule to make target '1', needed by 'src/libcec/libcec.so.3.0.1'. Stop.
Using libcec-3.0.0 instead of libcec-3.0.1, it’s work properly.
git clone https://github.com/Pulse-Eight/libcec.git
cd libcec
git checkout libcec-3.0.0 -b cec3.0.0
Checkout platform source
cd libcec/src/platform
git clone https://github.com/Pulse-Eight/platform.git .
mkdir build && cd $_
Build platform
cmake -DCMAKE_CXX_COMPILER=g++-4.8 ..
make && sudo make install
Modify ~/libcec/src/libcec/cmake/CheckPlatformSupport.cmake
diff --git a/src/libcec/cmake/CheckPlatformSupport.cmake b/src/libcec/cmake/CheckPlatformSupport.cmake
index 828cdb2..b1ec498 100644
--- a/src/libcec/cmake/CheckPlatformSupport.cmake
+++ b/src/libcec/cmake/CheckPlatformSupport.cmake
@@ -75,9 +75,10 @@ else()
endif()
# raspberry pi
- check_library_exists(bcm_host vchi_initialise "" HAVE_RPI_API)
+ check_library_exists(bcm_host bcm_host_init "" HAVE_RPI_API)
if (HAVE_RPI_API)
set(LIB_INFO "${LIB_INFO}, 'RPi'")
+ include_directories(/opt/vc/include /opt/vc/include/interface/vcos/pthreads /opt/vc/include/interface/vmcs_host/linux)
list(APPEND CMAKE_REQUIRED_LIBRARIES "vcos")
list(APPEND CMAKE_REQUIRED_LIBRARIES "vchiq_arm")
set(CEC_SOURCES_ADAPTER_RPI adapter/RPi/RPiCECAdapterDetection.cpp
Build libcec
cd ~/libcec
mkdir build && cd $_
cmake -DBUILD_SHARED_LIBS=1 -DCMAKE_CXX_COMPILER=g++-4.8 ..
The configuration on my pi
-- Configured features:
-- Pulse-Eight CEC Adapter: yes
-- Pulse-Eight CEC Adapter detection: yes
-- lockdev support: yes
-- xrandr support: yes
-- Raspberry Pi support: no
-- TDA995x support: no
-- Exynos support: no
-- Python support: version 2.7.3 (2.7)
-- lib info: compiled on Linux-3.18.11+, features: P8_USB, P8_detect, randr
-- Configuring done
-- Generating done
Make and install library
make && sudo make install
Test libcec#
Testing Samsung UA46B6000VM
You can test via cec-client or libcec/src/pyCecClient/pyCecClient.py(if you built with python support).
h for help and q for exit cec-client.
As a playback device:
oopsmonk@raspberrypi ~ $ sudo cec-client -t p
[sudo] password for oopsmonk:
== using device type 'playback device'
CEC Parser created - libCEC version 3.0.0
no serial port given. trying autodetect:
path: Raspberry Pi
com port: RPI
opening a connection to the CEC adapter...
DEBUG: [ 102] Broadcast (F): osd name set to 'Broadcast'
DEBUG: [ 104] InitHostCEC - vchiq_initialise succeeded
DEBUG: [ 105] InitHostCEC - vchi_initialise succeeded
DEBUG: [ 107] InitHostCEC - vchi_connect succeeded
DEBUG: [ 109] logical address changed to Free use (e)
DEBUG: [ 111] Open - vc_cec initialised
NOTICE: [ 112] connection opened
DEBUG: [ 114] << Broadcast (F) -> TV (0): POLL
DEBUG: [ 114] initiator 'Broadcast' is not supported by the CEC adapter. using 'Free use' instead
TRAFFIC: [ 115] << e0
DEBUG: [ 119] processor thread started
DEBUG: [ 176] >> POLL sent
DEBUG: [ 176] TV (0): device status changed into 'present'
DEBUG: [ 176] << requesting vendor ID of 'TV' (0)
TRAFFIC: [ 177] << e0:8c
TRAFFIC: [ 369] >> 0f:87:00:00:f0
DEBUG: [ 369] TV (0): vendor = Samsung (0000f0)
DEBUG: [ 371] >> TV (0) -> Broadcast (F): device vendor id (87)
DEBUG: [ 372] expected response received (87: device vendor id)
DEBUG: [ 373] replacing the command handler for device 'TV' (0)
NOTICE: [ 373] registering new CEC client - v3.0.0
DEBUG: [ 373] detecting logical address for type 'playback device'
DEBUG: [ 373] trying logical address 'Playback 1'
DEBUG: [ 373] << Playback 1 (4) -> Playback 1 (4): POLL
TRAFFIC: [ 374] << 44
TRAFFIC: [ 464] << 44
DEBUG: [ 555] >> POLL not sent
DEBUG: [ 555] using logical address 'Playback 1'
DEBUG: [ 555] Playback 1 (4): device status changed into 'handled by libCEC'
DEBUG: [ 555] Playback 1 (4): power status changed from 'unknown' to 'on'
DEBUG: [ 555] Playback 1 (4): vendor = Pulse Eight (001582)
DEBUG: [ 556] Playback 1 (4): CEC version 1.4
DEBUG: [ 556] AllocateLogicalAddresses - device '0', type 'playback device', LA '4'
DEBUG: [ 557] logical address changed to Playback 1 (4)
DEBUG: [ 560] Playback 1 (4): osd name set to 'CECTester'
DEBUG: [ 560] Playback 1 (4): menu language set to 'eng'
DEBUG: [ 564] GetPhysicalAddress - physical address = 1000
DEBUG: [ 565] AutodetectPhysicalAddress - autodetected physical address '1000'
DEBUG: [ 565] Playback 1 (4): physical address changed from ffff to 1000
DEBUG: [ 565] << Playback 1 (4) -> broadcast (F): physical adddress 1000
TRAFFIC: [ 565] << 4f:84:10:00:04
NOTICE: [ 716] CEC client registered: libCEC version = 3.0.0, client version = 3.0.0, firmware version = 1, logical address(es) = Playback 1 (4) , physical address: 1.0.0.0, compiled on Linux-3.18.11+, features: P8_USB, P8_detect, randr, 'RPi'
DEBUG: [ 717] << Playback 1 (4) -> TV (0): OSD name 'CECTester'
TRAFFIC: [ 717] << 40:47:43:45:43:54:65:73:74:65:72
DEBUG: [ 1018] << requesting power status of 'TV' (0)
TRAFFIC: [ 1018] << 40:8f
waiting for input
TRAFFIC: [ 1162] >> 04:90:00
DEBUG: [ 1162] TV (0): power status changed from 'unknown' to 'on'
DEBUG: [ 1163] expected response received (90: report power status)
DEBUG: [ 1165] >> TV (0) -> Playback 1 (4): report power status (90)
Get CEC version
ver 0
DEBUG: [ 209560] << requesting CEC version of 'TV' (0)
TRAFFIC: [ 209561] << 40:9f
TRAFFIC: [ 209718] >> 04:9e:04
DEBUG: [ 209718] TV (0): CEC version 1.3a
DEBUG: [ 209720] >> TV (0) -> Playback 1 (4): cec version (9E)
CEC version 1.3a
DEBUG: [ 209723] expected response received (9E: cec version)
Set inactive source
is
DEBUG: [ 281092] marking Playback 1 (4) as inactive source
NOTICE: [ 281094] >> source deactivated: Playback 1 (4)
NOTICE: [ 281095] << Playback 1 (4) -> broadcast (F): inactive source
TRAFFIC: [ 281097] << 40:9d:10:00
TRAFFIC: [ 283632] >> 0f:82:00:00
DEBUG: [ 283632] making TV (0) the active source
DEBUG: [ 283635] >> TV (0) -> Broadcast (F): active source (82)
TRAFFIC: [ 283850] >> 0f:80:10:00:00:00
DEBUG: [ 283852] >> TV (0) -> Broadcast (F): routing change (80)
Set active source
as
DEBUG: [ 288309] making Playback 1 (4) the active source
DEBUG: [ 288310] marking TV (0) as inactive source
NOTICE: [ 288312] >> source activated: Playback 1 (4)
DEBUG: [ 288314] sending active source message for 'Playback 1'
NOTICE: [ 288315] << powering on 'TV' (0)
TRAFFIC: [ 288317] << 40:04
NOTICE: [ 288379] << Playback 1 (4) -> broadcast (F): active source (1000)
TRAFFIC: [ 288381] << 4f:82:10:00
DEBUG: [ 288503] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 288505] << 40:8e:00
TRAFFIC: [ 288675] >> 04:8d:02
DEBUG: [ 288675] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 288675] << 40:8e:00
DEBUG: [ 288677] >> TV (0) -> Playback 1 (4): menu request (8D)
TRAFFIC: [ 288853] >> 04:1a:01
DEBUG: [ 288853] << Playback 1 (4) -> TV (0): deck status 'stop'
TRAFFIC: [ 288853] << 40:1b:1a
DEBUG: [ 288855] >> TV (0) -> Playback 1 (4): give deck status (1A)
Emit Standby command to TV
standby 0
NOTICE: [ 40210] << putting 'TV' (0) in standby mode
TRAFFIC: [ 40212] << 40:36
TRAFFIC: [ 40577] >> 0f:36
DEBUG: [ 40577] TV (0): power status changed from 'on' to 'standby'
DEBUG: [ 40579] >> TV (0) -> Broadcast (F): standby (36)
Power on TV
on 0
NOTICE: [ 57151] << powering on 'TV' (0)
TRAFFIC: [ 57153] << 40:04
DEBUG: [ 57215] TV (0): power status changed from 'standby' to 'in transition from standby to on'
DEBUG: [ 63175] GetPhysicalAddress - physical address = 1000
NOTICE: [ 63176] physical address changed to 1000
DEBUG: [ 63176] physical address unchanged (1000)
TRAFFIC: [ 70645] >> 0f:80:00:00:10:00
DEBUG: [ 70646] TV (0): power status changed from 'in transition from standby to on' to 'on'
DEBUG: [ 70646] making Playback 1 (4) the active source
NOTICE: [ 70646] >> source activated: Playback 1 (4)
DEBUG: [ 70646] sending active source message for 'Playback 1'
NOTICE: [ 70646] << powering on 'TV' (0)
TRAFFIC: [ 70647] << 40:04
DEBUG: [ 70648] >> TV (0) -> Broadcast (F): routing change (80)
NOTICE: [ 70737] << Playback 1 (4) -> broadcast (F): active source (1000)
TRAFFIC: [ 70738] << 4f:82:10:00
DEBUG: [ 70889] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 70889] << 40:8e:00
TRAFFIC: [ 71160] >> 0f:85
DEBUG: [ 71160] >> 0 requests active source
NOTICE: [ 71161] << Playback 1 (4) -> broadcast (F): active source (1000)
TRAFFIC: [ 71161] << 4f:82:10:00
DEBUG: [ 71162] >> TV (0) -> Broadcast (F): request active source (85)
TRAFFIC: [ 71402] >> 0f:80:00:00:10:00
DEBUG: [ 71403] Playback 1 (4) was already marked as active source
NOTICE: [ 71403] >> source activated: Playback 1 (4)
DEBUG: [ 71403] sending active source message for 'Playback 1'
NOTICE: [ 71403] << powering on 'TV' (0)
TRAFFIC: [ 71403] << 40:04
DEBUG: [ 71405] >> TV (0) -> Broadcast (F): routing change (80)
NOTICE: [ 71554] << Playback 1 (4) -> broadcast (F): active source (1000)
TRAFFIC: [ 71555] << 4f:82:10:00
DEBUG: [ 71765] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 71766] << 40:8e:00
TRAFFIC: [ 71947] >> 0f:32:65:6e:67
DEBUG: [ 71947] TV (0): menu language set to 'eng'
TRAFFIC: [ 71948] >> 04:8d:02
DEBUG: [ 71948] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 71948] << 40:8e:00
DEBUG: [ 71950] >> TV (0) -> Broadcast (F): set menu language (32)
DEBUG: [ 71952] >> TV (0) -> Playback 1 (4): menu request (8D)
TRAFFIC: [ 72129] >> 04:1a:01
DEBUG: [ 72129] << Playback 1 (4) -> TV (0): deck status 'stop'
TRAFFIC: [ 72129] << 40:1b:1a
DEBUG: [ 72132] >> TV (0) -> Playback 1 (4): give deck status (1A)
TRAFFIC: [ 72371] >> 04:8d:02
DEBUG: [ 72371] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 72371] << 40:8e:00
DEBUG: [ 72373] >> TV (0) -> Playback 1 (4): menu request (8D)
TRAFFIC: [ 72642] >> 04:8d:02
DEBUG: [ 72643] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 72643] << 40:8e:00
DEBUG: [ 72645] >> TV (0) -> Playback 1 (4): menu request (8D)
TRAFFIC: [ 75054] >> 04:8c
DEBUG: [ 75055] << Playback 1 (4) -> TV (0): vendor id Pulse Eight (1582)
TRAFFIC: [ 75055] << 4f:87:00:15:82
DEBUG: [ 75057] >> TV (0) -> Playback 1 (4): give device vendor id (8C)
TRAFFIC: [ 75275] >> 04:46
DEBUG: [ 75276] << Playback 1 (4) -> TV (0): OSD name 'CECTester'
TRAFFIC: [ 75276] << 40:47:43:45:43:54:65:73:74:65:72
DEBUG: [ 75278] >> TV (0) -> Playback 1 (4): give osd name (46)
TRAFFIC: [ 75744] >> 04:a0:00:00:f0:23
TRAFFIC: [ 75745] << 40:a0:00:00:f0:24:00:80
DEBUG: [ 75746] >> TV (0) -> Playback 1 (4): vendor command with id (A0)
TRAFFIC: [ 76037] >> 04:9f
DEBUG: [ 76037] << Playback 1 (4) -> TV (0): cec version 1.4
TRAFFIC: [ 76037] << 40:9e:05
DEBUG: [ 76039] >> TV (0) -> Playback 1 (4): get cec version (9F)
TRAFFIC: [ 76214] >> 0f:85
DEBUG: [ 76214] >> 0 requests active source
NOTICE: [ 76214] << Playback 1 (4) -> broadcast (F): active source (1000)
TRAFFIC: [ 76214] << 4f:82:10:00
DEBUG: [ 76216] >> TV (0) -> Broadcast (F): request active source (85)
TRAFFIC: [ 76417] >> 04:8d:02
DEBUG: [ 76417] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 76417] << 40:8e:00
DEBUG: [ 76419] >> TV (0) -> Playback 1 (4): menu request (8D)
TRAFFIC: [ 76595] >> 04:8d:02
DEBUG: [ 76595] << Playback 1 (4) -> TV (0): menu state 'activated'
TRAFFIC: [ 76595] << 40:8e:00
DEBUG: [ 76597] >> TV (0) -> Playback 1 (4): menu request (8D)
h
================================================================================
Available commands:
[tx] {bytes} transfer bytes over the CEC line.
[txn] {bytes} transfer bytes but don't wait for transmission ACK.
[on] {address} power on the device with the given logical address.
[standby] {address} put the device with the given address in standby mode.
[la] {logical address} change the logical address of the CEC adapter.
[p] {device} {port} change the HDMI port number of the CEC adapter.
[pa] {physical address} change the physical address of the CEC adapter.
[as] make the CEC adapter the active source.
[is] mark the CEC adapter as inactive source.
[osd] {addr} {string} set OSD message on the specified device.
[ver] {addr} get the CEC version of the specified device.
[ven] {addr} get the vendor ID of the specified device.
[lang] {addr} get the menu language of the specified device.
[pow] {addr} get the power status of the specified device.
[name] {addr} get the OSD name of the specified device.
[poll] {addr} poll the specified device.
[lad] lists active devices on the bus
[ad] {addr} checks whether the specified device is active.
[at] {type} checks whether the specified device type is active.
[sp] {addr} makes the specified physical address active.
[spl] {addr} makes the specified logical address active.
[volup] send a volume up command to the amp if present
[voldown] send a volume down command to the amp if present
[mute] send a mute/unmute command to the amp if present
[self] show the list of addresses controlled by libCEC
[scan] scan the CEC bus and display device info
[mon] {1|0} enable or disable CEC bus monitoring.
[log] {1 - 31} change the log level. see cectypes.h for values.
[ping] send a ping command to the CEC adapter.
[bl] to let the adapter enter the bootloader, to upgrade
the flash rom.
[r] reconnect to the CEC adapter.
[h] or [help] show this help.
[q] or [quit] to quit the CEC test client and switch off all
connected CEC devices.
================================================================================
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