Add Linux CEC Adapter

Pulse-Eight · Jan 14, 2019 · 467cc79 · 467cc79
1 parent 3bbd432
commit 467cc79
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Showing 12 changed files with 700 additions and 2 deletions.
diff --git a/docs/README.linux.md b/docs/README.linux.md
@@ -51,5 +51,11 @@ Pass the argument `-DHAVE_TDA995X_API=1` to the cmake command in the compilation
 cmake -DHAVE_TDA995X_API=1 ..
 ```
 
+### Linux CEC Framework (v4.10+)
+Pass the argument `-DHAVE_LINUX_API=1` to the cmake command in the compilation instructions:
+```
+cmake -DHAVE_LINUX_API=1 ..
+```
+
 ### Debian / Ubuntu .deb packaging
 See [docs/README.debian.md](README.debian.md).
diff --git a/include/cectypes.h b/include/cectypes.h
@@ -281,6 +281,16 @@ namespace CEC {
  */
 #define CEC_MAX_DATA_PACKET_SIZE (16 * 4)
 
+/*!
+ * the path to use for the Linux CEC device
+ */
+#define CEC_LINUX_PATH		"/dev/cec0"
+
+/*!
+ * the name of the virtual COM port to use for the Linux' CEC wire
+ */
+#define CEC_LINUX_VIRTUAL_COM		"Linux"
+
 /*!
  * the path to use for the AOCEC HDMI CEC device
  */
@@ -861,6 +871,7 @@ typedef enum cec_adapter_type
   ADAPTERTYPE_RPI              = 0x100,
   ADAPTERTYPE_TDA995x          = 0x200,
   ADAPTERTYPE_EXYNOS           = 0x300,
+  ADAPTERTYPE_LINUX            = 0x400,
   ADAPTERTYPE_AOCEC            = 0x500
 } cec_adapter_type;
 

diff --git a/src/libcec/CECTypeUtils.h b/src/libcec/CECTypeUtils.h
@@ -766,6 +766,8 @@ namespace CEC
         return "Raspberry Pi";
       case ADAPTERTYPE_TDA995x:
         return "TDA995x";
+      case ADAPTERTYPE_LINUX:
+        return "Linux";
       default:
         return "unknown";
       }

diff --git a/src/libcec/CMakeLists.txt b/src/libcec/CMakeLists.txt
@@ -89,6 +89,8 @@ set(CEC_HEADERS devices/CECRecordingDevice.h
                 adapter/Exynos/ExynosCEC.h
                 adapter/Exynos/ExynosCECAdapterDetection.h
                 adapter/Exynos/ExynosCECAdapterCommunication.h
+                adapter/Linux/LinuxCECAdapterDetection.h
+                adapter/Linux/LinuxCECAdapterCommunication.h
                 adapter/AOCEC/AOCEC.h
                 adapter/AOCEC/AOCECAdapterDetection.h
                 adapter/AOCEC/AOCECAdapterCommunication.h

diff --git a/src/libcec/adapter/AdapterFactory.cpp b/src/libcec/adapter/AdapterFactory.cpp
@@ -58,6 +58,11 @@
 #include "Exynos/ExynosCECAdapterCommunication.h"
 #endif
 
+#if defined(HAVE_LINUX_API)
+#include "Linux/LinuxCECAdapterDetection.h"
+#include "Linux/LinuxCECAdapterCommunication.h"
+#endif
+
 #if defined(HAVE_AOCEC_API)
 #include "AOCEC/AOCECAdapterDetection.h"
 #include "AOCEC/AOCECAdapterCommunication.h"
@@ -131,6 +136,18 @@ int8_t CAdapterFactory::DetectAdapters(cec_adapter_descriptor *deviceList, uint8
   }
 #endif
 
+#if defined(HAVE_LINUX_API)
+  if (iAdaptersFound < iBufSize && CLinuxCECAdapterDetection::FindAdapter())
+  {
+    snprintf(deviceList[iAdaptersFound].strComPath, sizeof(deviceList[iAdaptersFound].strComPath), CEC_LINUX_PATH);
+    snprintf(deviceList[iAdaptersFound].strComName, sizeof(deviceList[iAdaptersFound].strComName), CEC_LINUX_VIRTUAL_COM);
+    deviceList[iAdaptersFound].iVendorId = 0;
+    deviceList[iAdaptersFound].iProductId = 0;
+    deviceList[iAdaptersFound].adapterType = ADAPTERTYPE_LINUX;
+    iAdaptersFound++;
+  }
+#endif
+
 #if defined(HAVE_AOCEC_API)
   if (iAdaptersFound < iBufSize && CAOCECAdapterDetection::FindAdapter())
   {
@@ -144,7 +161,7 @@ int8_t CAdapterFactory::DetectAdapters(cec_adapter_descriptor *deviceList, uint8
 #endif
 
 
-#if !defined(HAVE_RPI_API) && !defined(HAVE_P8_USB) && !defined(HAVE_TDA995X_API) && !defined(HAVE_AOCEC_API)
+#if !defined(HAVE_RPI_API) && !defined(HAVE_P8_USB) && !defined(HAVE_TDA995X_API) && !defined(HAVE_LINUX_API) && !defined(HAVE_AOCEC_API)
 #error "libCEC doesn't have support for any type of adapter. please check your build system or configuration"
 #endif
 
@@ -163,6 +180,11 @@ IAdapterCommunication *CAdapterFactory::GetInstance(const char *strPort, uint16_
     return new CExynosCECAdapterCommunication(m_lib->m_cec);
 #endif
 
+#if defined(HAVE_LINUX_API)
+  if (!strcmp(strPort, CEC_LINUX_VIRTUAL_COM))
+    return new CLinuxCECAdapterCommunication(m_lib->m_cec);
+#endif
+
 #if defined(HAVE_AOCEC_API)
   if (!strcmp(strPort, CEC_AOCEC_VIRTUAL_COM))
     return new CAOCECAdapterCommunication(m_lib->m_cec);
@@ -177,7 +199,7 @@ IAdapterCommunication *CAdapterFactory::GetInstance(const char *strPort, uint16_
   return new CUSBCECAdapterCommunication(m_lib->m_cec, strPort, iBaudRate);
 #endif
 
-#if !defined(HAVE_RPI_API) && !defined(HAVE_P8_USB) && !defined(HAVE_TDA995X_API) && !defined(HAVE_EXYNOS_API) && !defined(HAVE_AOCEC_API)
+#if !defined(HAVE_RPI_API) && !defined(HAVE_P8_USB) && !defined(HAVE_TDA995X_API) && !defined(HAVE_EXYNOS_API) && !defined(HAVE_LINUX_API) && !defined(HAVE_AOCEC_API)
   return NULL;
 #endif
 }