[diag] add radio sleep / receive mode for RF certification (#3657)

Bug: 127894959

src/diag/README.md

@@ -13,7 +13,7 @@ The diagnostics module supports common diagnostics features that are listed belo
 * [diag power](#diag-power)
 * [diag send](#diag-send-packets-length)
 * [diag repeat](#diag-repeat-delay-length)
-* [diag sleep](#diag-sleep)
+* [diag radio](#diag-radio)
 * [diag stats](#diag-stats)
 * [diag stop](#diag-stop)
 
@@ -105,13 +105,24 @@ repeated packet transmission is stopped
 status 0x00
 ```
 
-### diag sleep
+### diag radio sleep
 
 Enter radio sleep mode.
 
 ```bash
-> diag sleep
-sleeping now...
+> diag radio sleep
+set radio from receive to sleep
+status 0x00
+```
+
+### diag radio receive
+
+Set radio from sleep mode to receive mode.
+
+```bash
+> diag radio receive
+set radio from sleep to receive on channel 11
+status 0x00
 ```
 
 ### diag stats

src/diag/diag_process.cpp

@@ -46,8 +46,9 @@ namespace ot {
 namespace Diagnostics {
 
 const struct Diag::Command Diag::sCommands[] = {
-    {"start", &ProcessStart}, {"stop", &ProcessStop},     {"channel", &ProcessChannel}, {"power", &ProcessPower},
-    {"send", &ProcessSend},   {"repeat", &ProcessRepeat}, {"stats", &ProcessStats},     {NULL, NULL},
+    {"start", &ProcessStart}, {"stop", &ProcessStop},   {"channel", &ProcessChannel},
+    {"power", &ProcessPower}, {"send", &ProcessSend},   {"repeat", &ProcessRepeat},
+    {"stats", &ProcessStats}, {"radio", &ProcessRadio}, {NULL, NULL},
 };
 
 struct Diag::DiagStats Diag::sStats;
@@ -309,6 +310,31 @@ exit:
     AppendErrorResult(error, aOutput, aOutputMaxLen);
 }
 
+void Diag::ProcessRadio(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen)
+{
+    otError error = OT_ERROR_INVALID_ARGS;
+
+    VerifyOrExit(otPlatDiagModeGet(), error = OT_ERROR_INVALID_STATE);
+    VerifyOrExit(aArgCount > 0, error = OT_ERROR_INVALID_ARGS);
+
+    if (strcmp(aArgVector[0], "sleep") == 0)
+    {
+        SuccessOrExit(error = otPlatRadioSleep(sInstance));
+        snprintf(aOutput, aOutputMaxLen, "set radio from receive to sleep \r\nstatus 0x%02x\r\n", error);
+    }
+    else if (strcmp(aArgVector[0], "receive") == 0)
+    {
+        SuccessOrExit(error = otPlatRadioReceive(sInstance, sChannel));
+        otPlatDiagChannelSet(sChannel);
+
+        snprintf(aOutput, aOutputMaxLen, "set radio from sleep to receive on channel %d\r\nstatus 0x%02x\r\n", sChannel,
+                 error);
+    }
+
+exit:
+    AppendErrorResult(error, aOutput, aOutputMaxLen);
+}
+
 void Diag::DiagTransmitDone(otInstance *aInstance, otError aError)
 {
     VerifyOrExit(aInstance == sInstance);

src/diag/diag_process.hpp

@@ -78,6 +78,7 @@ private:
     static void ProcessSend(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen);
     static void ProcessRepeat(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen);
     static void ProcessStats(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen);
+    static void ProcessRadio(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen);
     static void ProcessChannel(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen);
     static void ProcessPower(int aArgCount, char *aArgVector[], char *aOutput, size_t aOutputMaxLen);
     static void TxPacket(void);