Set of changes to support new ALSA RAVENNA/AES67 device driver versio…

…n 1.1.93

- removed changes to driver/MTAL_LKernelAPI.c in ravenna-alsa-lkm-kernel-v5.patch
- added patch ravenna-alsa-lkm-disable-ptp-checksum.patch to the driver to the disable UDP checksum verification for the incoming PTP packets
- changed build.sh script to use new driver revision and apply the new patch
- added handling of the sink status flag "all_muted" in daemon, WebUI and regression tests
- updated documentation

3rdparty/patches/ravenna-alsa-lkm-disable-ptp-checksum.patch

@@ -0,0 +1,19 @@
+diff --git a/driver/PTP.c b/driver/PTP.c
+--- a/driver/PTP.c
++++ b/driver/PTP.c
+@@ -306,6 +306,7 @@ EDispatchResult process_PTP_packet(TClock_PTP* self, TUDPPacketBase* pUDPPacketB
+ 	}
+
+ 	// verify checksum
++#if 0
+ 	if (pUDPPacketBase->UDPHeader.usCheckSum != 0)
+ 	{
+ 		uint16_t ui16CheckSum = MTAL_ComputeUDPChecksum(&pPTPPacketBase->UDPHeader, MTAL_SWAP16(pUDPPacketBase->UDPHeader.usLen), (unsigned short*)&pPTPPacketBase->IPV4Header.ui32SrcIP, (unsigned short*)&pPTPPacketBase->IPV4Header.ui32DestIP);
+@@ -319,6 +320,7 @@ EDispatchResult process_PTP_packet(TClock_PTP* self, TUDPPacketBase* pUDPPacketB
+ 			return DR_PACKET_ERROR;
+ 		}
+ 	}
++#endif
+
+ 	//DumpPTPV2MsgHeader(&pPTPPacketBase->V2MsgHeader);
+

3rdparty/patches/ravenna-alsa-lkm-kernel-v5.patch

@@ -1,28 +1,3 @@
-diff --git a/driver/MTAL_LKernelAPI.c b/driver/MTAL_LKernelAPI.c
-index 164f315..a993b41 100644
---- a/driver/MTAL_LKernelAPI.c
-+++ b/driver/MTAL_LKernelAPI.c
-@@ -35,7 +35,7 @@
- #include <linux/spinlock.h>
- #include <linux/version.h>
-
--#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) || LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
- #include <linux/timekeeping.h>
- #else
- #include <linux/time.h>
-@@ -214,7 +214,10 @@ uint64_t MTAL_LK_GetCounterFreq(void)
- uint64_t MTAL_LK_GetSystemTime(void)
- {
-     uint64_t timeVal = 0ull;
--#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
-+    struct timespec64 ts64;
-+    ktime_get_real_ts64(&ts64);
-+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
-     struct timespec64 ts64;
-     getnstimeofday64(&ts64);
- #else
 diff --git a/driver/module_timer.c b/driver/module_timer.c
 index 5f64a8e..0ba770f 100644
 --- a/driver/module_timer.c

build.sh

@@ -11,14 +11,15 @@ cd 3rdparty
 if [ ! -d ravenna-alsa-lkm.git ]; then
   git clone https://bitbucket.org/MergingTechnologies/ravenna-alsa-lkm.git
   cd ravenna-alsa-lkm
-  git checkout 5a06f0d33c18e532eb5dac3ad90c0acd59fbabd7
+  git checkout 35c708f3747474130790cf508c064360a9589ac8
   cd driver
   echo "Apply patches to ravenna-alsa-lkm module ..."
   git apply ../../patches/ravenna-alsa-lkm-kernel-v5.patch
   git apply ../../patches/ravenna-alsa-lkm-enable-loopback.patch  
   git apply ../../patches/ravenna-alsa-lkm-fixes.patch
   git apply ../../patches/ravenna-alsa-lkm-arm-32bit.patch
   git apply ../../patches/ravenna-alsa-lkm-add-codec-am824.patch
+  git apply ../../patches/ravenna-alsa-lkm-disable-ptp-checksum.patch
   echo "Building ravenna-alsa-lkm kernel module ..."
   make
   cd ../..

daemon/README.md

@@ -425,6 +425,7 @@ Example:
         "rtp_sac_error": false, 
         "receiving_rtp_packet": false, 
         "some_muted": false, 
+        "all_muted": false, 
         "muted": true
       },
       "sink_min_time": 0
@@ -447,6 +448,8 @@ where:
 
 >    - **some\_muted** JSON boolean (not used)
 
+>    - **all\_muted** JSON boolean (not used)
+
 >    - **muted** JSON boolean specifying whether the sink is currently muted.
 
 > **sink\_min\_time** JSON number specifying the minimum source RTP packet arrival time.    

daemon/json.cpp

@@ -158,6 +158,7 @@ std::string sink_status_to_json(const SinkStreamStatus& status) {
      << ", \n    \"rtp_sac_error\": " << status.is_rtp_sac_error
      << ", \n    \"receiving_rtp_packet\": " << status.is_receiving_rtp_packet
      << ", \n    \"some_muted\": " << status.is_some_muted
+     << ", \n    \"all_muted\": " << status.is_all_muted
      << ", \n    \"muted\": " << status.is_muted << "\n  },"
      << "\n  \"sink_min_time\": " << status.min_time << "\n}\n";
   return ss.str();

daemon/session_manager.cpp

@@ -830,6 +830,7 @@ std::error_code SessionManager::get_sink_status(
     sink_status.is_receiving_rtp_packet = status.u.flags & 0x10;
     sink_status.is_muted = status.u.flags & 0x20;
     sink_status.is_some_muted = status.u.flags & 0x40;
+    sink_status.is_all_muted = status.u.flags & 0x80;
     sink_status.min_time = status.sink_min_time;
   }
 

daemon/session_manager.hpp

@@ -65,6 +65,7 @@ struct SinkStreamStatus {
   bool is_receiving_rtp_packet{false};
   bool is_muted{false};
   bool is_some_muted{false};
+  bool is_all_muted{false};
   int min_time{0};
 };
 

daemon/tests/daemon_test.cpp

@@ -594,8 +594,10 @@ BOOST_AUTO_TEST_CASE(sink_check_status) {
   boost::property_tree::read_json(ss, pt);
   //auto is_sink_muted = pt.get<bool>("sink_flags.muted");
   auto is_sink_some_muted = pt.get<bool>("sink_flags.some_muted");
-  //BOOST_REQUIRE_MESSAGE(is_sink_muted, "sink is not receiving packets");
-  BOOST_REQUIRE_MESSAGE(!is_sink_some_muted, "sink is not receiving packets");
+  auto is_sink_all_muted = pt.get<bool>("sink_flags.all_muted");
+  //BOOST_REQUIRE_MESSAGE(is_sink_muted, "sink is muted");
+  BOOST_REQUIRE_MESSAGE(!is_sink_all_muted, "all sinks are mutes");
+  BOOST_REQUIRE_MESSAGE(!is_sink_some_muted, "some sinks are muted");
   BOOST_REQUIRE_MESSAGE(cli.remove_sink(0), "removed sink 0");
 }
 

webui/src/Sinks.js

@@ -72,6 +72,8 @@ class SinkEntry extends Component {
           flags += 'receiving';
         if (status.sink_flags._some_muted)
           flags += (flags ? ',' : '') + 'some muted';
+        if (status.sink_flags._all_muted)
+          flags += (flags ? ',' : '') + 'all muted';
         if (status.sink_flags._muted)
           flags += (flags ? ',' : '') + 'muted';
         this.setState({