remove register_commands from etm_capture_driver

Converts callback to an array of command_registration records.
Moves oocd_trace driver definition to end of file to eliminate
useless forward declaration.

src/target/etb.c

@@ -421,11 +421,6 @@ static const struct command_registration etb_command_handlers[] = {
 	COMMAND_REGISTRATION_DONE
 };
 
-static int etb_register_commands(struct command_context *cmd_ctx)
-{
-	return register_commands(cmd_ctx, NULL, etb_command_handlers);
-}
-
 static int etb_init(struct etm_context *etm_ctx)
 {
 	struct etb *etb = etm_ctx->capture_driver_priv;
@@ -696,7 +691,7 @@ static int etb_stop_capture(struct etm_context *etm_ctx)
 struct etm_capture_driver etb_capture_driver =
 {
 	.name = "etb",
-	.register_commands = etb_register_commands,
+	.commands = etb_command_handlers,
 	.init = etb_init,
 	.status = etb_status,
 	.start_capture = etb_start_capture,

src/target/etm.c

@@ -1471,8 +1471,9 @@ COMMAND_HANDLER(handle_etm_config_command)
 	{
 		if (strcmp(CMD_ARGV[4], etm_capture_drivers[i]->name) == 0)
 		{
-			int retval;
-			if ((retval = etm_capture_drivers[i]->register_commands(CMD_CTX)) != ERROR_OK)
+			int retval = register_commands(CMD_CTX, NULL,
+					etm_capture_drivers[i]->commands);
+			if (ERROR_OK != retval)
 			{
 				free(etm_ctx);
 				return retval;

src/target/etm.h

@@ -126,7 +126,7 @@ struct etm_context;
 struct etm_capture_driver
 {
 	char *name;
-	int (*register_commands)(struct command_context *cmd_ctx);
+	const struct command_registration *commands;
 	int (*init)(struct etm_context *etm_ctx);
 	trace_status_t (*status)(struct etm_context *etm_ctx);
 	int (*read_trace)(struct etm_context *etm_ctx);

src/target/etm_dummy.c

@@ -77,11 +77,6 @@ static const struct command_registration etm_dummy_command_handlers[] = {
 	COMMAND_REGISTRATION_DONE
 };
 
-static int etm_dummy_register_commands(struct command_context *cmd_ctx)
-{
-	return register_commands(cmd_ctx, NULL, etm_dummy_command_handlers);
-}
-
 static int etm_dummy_init(struct etm_context *etm_ctx)
 {
 	return ERROR_OK;
@@ -110,7 +105,7 @@ static int etm_dummy_stop_capture(struct etm_context *etm_ctx)
 struct etm_capture_driver etm_dummy_capture_driver =
 {
 	.name = "dummy",
-	.register_commands = etm_dummy_register_commands,
+	.commands = etm_dummy_command_handlers,
 	.init = etm_dummy_init,
 	.status = etm_dummy_status,
 	.start_capture = etm_dummy_start_capture,

src/target/oocd_trace.c

@@ -30,8 +30,6 @@
  */
 
 
-static int oocd_trace_register_commands(struct command_context *cmd_ctx);
-
 static int oocd_trace_read_reg(struct oocd_trace *oocd_trace, int reg, uint32_t *value)
 {
 	size_t bytes_written, bytes_read, bytes_to_read;
@@ -278,17 +276,6 @@ static int oocd_trace_stop_capture(struct etm_context *etm_ctx)
 	return ERROR_OK;
 }
 
-struct etm_capture_driver oocd_trace_capture_driver =
-{
-	.name = "oocd_trace",
-	.register_commands = oocd_trace_register_commands,
-	.init = oocd_trace_init,
-	.status = oocd_trace_status,
-	.start_capture = oocd_trace_start_capture,
-	.stop_capture = oocd_trace_stop_capture,
-	.read_trace = oocd_trace_read_trace,
-};
-
 COMMAND_HANDLER(handle_oocd_trace_config_command)
 {
 	struct target *target;
@@ -438,7 +425,15 @@ static const struct command_registration oocd_trace_command_handlers[] = {
 	COMMAND_REGISTRATION_DONE
 };
 
-int oocd_trace_register_commands(struct command_context *cmd_ctx)
+struct etm_capture_driver oocd_trace_capture_driver =
 {
-	return register_commands(cmd_ctx, NULL, oocd_trace_command_handlers);
-}
+	.name = "oocd_trace",
+	.commands = oocd_trace_command_handlers,
+	.init = oocd_trace_init,
+	.status = oocd_trace_status,
+	.start_capture = oocd_trace_start_capture,
+	.stop_capture = oocd_trace_stop_capture,
+	.read_trace = oocd_trace_read_trace,
+};
+
+