dap: react properly to unsupported UART commands

Add ID_DAP_UART_* command definitions and react properly to
unsupported UART commands.

Signed-off-by: Maximilian Deubel <[email protected]>
Signed-off-by: Johann Fischer <[email protected]>

Author: jfischer-no

subsys/dap/cmsis_dap.c

@@ -922,6 +922,31 @@ static uint16_t dap_process_cmd(struct dap_context *const ctx,
 		retval = 1;
 		*response = DAP_ERROR;
 		break;
+	case ID_DAP_UART_TRANSPORT:
+		LOG_ERR("UART Transport unsupported");
+		retval = 1;
+		*response = DAP_ERROR;
+		break;
+	case ID_DAP_UART_CONFIGURE:
+		LOG_ERR("UART Configure unsupported");
+		retval = 1;
+		*response = DAP_ERROR;
+		break;
+	case ID_DAP_UART_CONTROL:
+		LOG_ERR("UART Control unsupported");
+		retval = 1;
+		*response = DAP_ERROR;
+		break;
+	case ID_DAP_UART_STATUS:
+		LOG_ERR("UART Status unsupported");
+		retval = 1;
+		*response = DAP_ERROR;
+		break;
+	case ID_DAP_UART_TRANSFER:
+		LOG_ERR("UART Transfer unsupported");
+		retval = 1;
+		*response = DAP_ERROR;
+		break;
 
 	default:
 		*(response - 1) = ID_DAP_INVALID;

subsys/dap/cmsis_dap.h

@@ -54,6 +54,12 @@
 #define ID_DAP_SWO_STATUS			0x1BU
 #define ID_DAP_SWO_DATA				0x1CU
 
+#define ID_DAP_UART_TRANSPORT			0x1FU
+#define ID_DAP_UART_CONFIGURE			0x20U
+#define ID_DAP_UART_CONTROL			0x22U
+#define ID_DAP_UART_STATUS			0x23U
+#define ID_DAP_UART_TRANSFER			0x21U
+
 #define ID_DAP_QUEUE_COMMANDS			0x7EU
 #define ID_DAP_EXECUTE_COMMANDS			0x7FU