X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Fparport.c;h=7ed95d8eaaee1f2d868686b38a0303a1a20e3e2f;hp=b666eb123aa80674bc033dff1577194c32422aa9;hb=02f3765351c9e25185b745b84f1a2604fb2149c7;hpb=ed1e9d6abdece4fbf6251a11f0eca3c921221048;ds=sidebyside

diff --git a/src/jtag/parport.c b/src/jtag/parport.c
index b666eb123a..7ed95d8eaa 100644
--- a/src/jtag/parport.c
+++ b/src/jtag/parport.c
@@ -120,8 +120,9 @@ cable_t cables[] =
 };
 
 /* configuration */
-char* parport_cable;
+char* parport_cable = NULL;
 unsigned long parport_port;
+static int parport_exit = 0;
 
 /* interface variables
  */
@@ -150,6 +151,7 @@ int parport_quit(void);
 /* interface commands */
 int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 
 jtag_interface_t parport_interface = 
 {
@@ -249,7 +251,6 @@ void parport_reset(int trst, int srst)
 /* turn LED on parport adapter on (1) or off (0) */
 void parport_led(int on)
 {
-	u8 output;
 	if (on)
 		dataport_value |= cable->LED_MASK;
 	else
@@ -271,6 +272,8 @@ int parport_register_commands(struct command_context_s *cmd_ctx)
 		COMMAND_CONFIG, NULL);
 	register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
 		COMMAND_CONFIG, NULL);
+	register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command,
+		COMMAND_CONFIG, NULL);
 
 	return ERROR_OK;
 }
@@ -429,11 +432,20 @@ int parport_init(void)
 
 int parport_quit(void)
 {
-	u8 output;
 	parport_led(0);
 
-	dataport_value = cable->PORT_EXIT;
-	parport_write_data();
+	if (parport_exit)
+	{
+		dataport_value = cable->PORT_EXIT;
+		parport_write_data();
+	}
+	
+	if (parport_cable)
+	{
+		free(parport_cable);
+		parport_cable = NULL;
+	}
+	
 	return ERROR_OK;
 }
 
@@ -463,3 +475,19 @@ int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char
 
 	return ERROR_OK;
 }
+
+int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+	if (argc != 1)
+	{
+		command_print(cmd_ctx, "usage: parport_write_on_exit <on|off>");
+		return ERROR_OK;
+	}
+	
+	if (strcmp(args[0], "on") == 0)
+		parport_exit = 1;
+	else if (strcmp(args[0], "off") == 0)
+		parport_exit = 0;
+	
+	return ERROR_OK;
+}