cli: support temp command for Gen5

Gen5 revB switch introduces a new MRPC sub-command for getting die temperature. It reports temperature values from four on die sensors. Support this method with this patch.
Microsemi · Nov 28, 2023 · f9ba36f · f9ba36f
1 parent 61ce53b
commit f9ba36f
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/inc/switchtec/mrpc.h b/inc/switchtec/mrpc.h
@@ -180,6 +180,7 @@ enum mrpc_sub_cmd {
 	MRPC_DIETEMP_GET = 2,
 	MRPC_DIETEMP_STOP = 3,
 	MRPC_DIETEMP_GET_GEN4 = 2,
+	MRPC_DIETEMP_GET_GEN5 = 4,
 
 	MRPC_MULTI_CFG_SUPPORTED = 0,
 	MRPC_MULTI_CFG_COUNT = 1,

diff --git a/lib/switchtec.c b/lib/switchtec.c
@@ -1806,12 +1806,20 @@ float switchtec_die_temp(struct switchtec_dev *dev)
 				    sizeof(sub_cmd_id), &temp, sizeof(temp));
 		if (ret)
 			return -100.0;
-	} else {
+	} else if (switchtec_is_gen4(dev)) {
 		sub_cmd_id = MRPC_DIETEMP_GET_GEN4;
 		ret = switchtec_cmd(dev, MRPC_DIETEMP, &sub_cmd_id,
 				    sizeof(sub_cmd_id), &temp, sizeof(temp));
 		if (ret)
 			return -100.0;
+	} else {
+		sub_cmd_id = MRPC_DIETEMP_GET_GEN5;
+		uint32_t temps[4];
+		ret = switchtec_cmd(dev, MRPC_DIETEMP, &sub_cmd_id,
+				    sizeof(sub_cmd_id), temps, sizeof(temps));
+		if (ret)
+			return -100.0;
+		temp = (temps[0] + temps[1] + temps[2] + temps[3]) / 4;
 	}
 
 	return le32toh(temp) / 100.;