[posix] add callback for coprocessor reset failure

Author: gytxxsy

script/check-posix-build-cmake

@@ -76,7 +76,7 @@ main()
     fi
 
     reset_source
-    build -DOT_POSIX_RCP_VENDOR_BUS=ON "$@"
+    build -DOT_POSIX_RCP_VENDOR_BUS=ON -DOT_POSIX_CP_RESET_FAIL_CALLBACK=ON "$@"
 }
 
 main "$@"

src/posix/platform/CMakeLists.txt

@@ -105,6 +105,13 @@ if(OT_POSIX_RCP_VENDOR_BUS)
     )
 endif()
 
+option(OT_POSIX_CP_RESET_FAIL_CALLBACK "enable co-processor reset failure callback" OFF)
+if(OT_POSIX_CP_RESET_FAIL_CALLBACK)
+    target_compile_definitions(ot-posix-config
+        INTERFACE "OPENTHREAD_SPINEL_CONFIG_COPROCESSOR_RESET_FAILURE_CALLBACK_ENABLE=1"
+    )
+endif()
+
 set(OT_POSIX_NAT64_CIDR "192.168.255.0/24" CACHE STRING "NAT64 CIDR for OpenThread NAT64")
 if(OT_POSIX_NAT64_CIDR)
     target_compile_definitions(ot-posix-config

src/posix/platform/platform-posix.h

@@ -435,6 +435,13 @@ void platformResolverUpdateFdSet(otSysMainloopContext *aContext);
  */
 void platformResolverProcess(const otSysMainloopContext *aContext);
 
+/**
+ * The callback for coprocessor reset failure.
+ *
+ * @param[in]  aContext  A pointer to the mainloop context.
+ */
+void platformCoprocessorResetFailed(void *aContext);
+
 #ifdef __cplusplus
 }
 #endif

src/posix/platform/radio.cpp

@@ -107,13 +107,21 @@ void Radio::Init(const char *aUrl)
     resetRadio             = !mRadioUrl.HasParam("no-reset");
     skipCompatibilityCheck = mRadioUrl.HasParam("skip-rcp-compatibility-check");
 
+#if OPENTHREAD_SPINEL_CONFIG_COPROCESSOR_RESET_FAILURE_CALLBACK_ENABLE
+    GetSpinelDriver().SetCoprocessorResetFailureCallback(platformCoprocessorResetFailed, this);
+#endif
+
     mRadioSpinel.SetCallbacks(callbacks);
     mRadioSpinel.Init(skipCompatibilityCheck, resetRadio, &GetSpinelDriver(),
                       (skipCompatibilityCheck ? 0 : kRequiredRadioCaps), aEnableRcpTimeSync);
 
     ProcessRadioUrl(mRadioUrl);
 }
 
+#if OPENTHREAD_SPINEL_CONFIG_COPROCESSOR_RESET_FAILURE_CALLBACK_ENABLE
+OT_TOOL_WEAK void platformCoprocessorResetFailed(void *) {}
+#endif
+
 void Radio::Deinit(void)
 {
     mRadioSpinel.Deinit();