103 	int ret;  in uart_read_8()  local
107 		ret = stm32_uart_getc(&handle.uart);  in uart_read_8()
108 		if (ret == -EAGAIN) {  in uart_read_8()
112 		} else if (ret < 0) {  in uart_read_8()
113 			return ret;  in uart_read_8()
115 	} while (ret == -EAGAIN);  in uart_read_8()
117 	*byte = (uint8_t)ret;  in uart_read_8()
124 	int ret;  in uart_send_result()  local
128 		ret = stm32_uart_getc(&handle.uart);  in uart_send_result()
129 	} while (ret >= 0);  in uart_send_result()
146 	int ret;  in uart_receive_command()  local
151 		ret = uart_read_8(&byte);  in uart_receive_command()
152 	} while (ret == -ETIMEDOUT);  in uart_receive_command()
154 	if (ret != 0) {  in uart_receive_command()
155 		return ret;  in uart_receive_command()
175 	ret = uart_read_8(&xor);  in uart_receive_command()
176 	if (ret != 0) {  in uart_receive_command()
177 		return ret;  in uart_receive_command()
196 	int ret;  in get_cmd_command()  local
198 	ret = uart_write(msg, sizeof(msg));  in get_cmd_command()
199 	if (ret != 0) {  in get_cmd_command()
200 		return ret;  in get_cmd_command()
225 	int ret;  in uart_send_phase()  local
233 	ret = uart_write_8(msg_size + error_size);  in uart_send_phase()
234 	if (ret != 0) {  in uart_send_phase()
235 		return ret;  in uart_send_phase()
239 	ret = uart_write_8(handle.phase);  in uart_send_phase()
240 	if (ret != 0) {  in uart_send_phase()
241 		return ret;  in uart_send_phase()
245 	ret = uart_write_32(address);  in uart_send_phase()
246 	if (ret != 0) {  in uart_send_phase()
247 		return ret;  in uart_send_phase()
250 	ret = uart_write_8(error_size);  in uart_send_phase()
251 	if (ret != 0) {  in uart_send_phase()
252 		return ret;  in uart_send_phase()
257 		ret = uart_write(handle.error, error_size);  in uart_send_phase()
260 	return ret;  in uart_send_phase()
271 	int ret;  in uart_download_part()  local
274 	ret = uart_read_8(&operation);  in uart_download_part()
275 	if (ret != 0) {  in uart_download_part()
276 		return ret;  in uart_download_part()
283 		ret = uart_read_8(&byte);  in uart_download_part()
284 		if (ret != 0) {  in uart_download_part()
285 			return ret;  in uart_download_part()
299 	ret = uart_read_8(&byte);  in uart_download_part()
300 	if (ret != 0) {  in uart_download_part()
301 		return ret;  in uart_download_part()
309 	ret = uart_send_result(ACK_BYTE);  in uart_download_part()
310 	if (ret != 0) {  in uart_download_part()
311 		return ret;  in uart_download_part()
314 	ret = uart_read_8(&byte);  in uart_download_part()
315 	if (ret != 0) {  in uart_download_part()
316 		return ret;  in uart_download_part()
326 		ret = uart_read_8(&byte);  in uart_download_part()
327 		if (ret != 0) {  in uart_download_part()
328 			return ret;  in uart_download_part()
336 	ret = uart_read_8(&byte) != 0;  in uart_download_part()
337 	if (ret != 0) {  in uart_download_part()
338 		return ret;  in uart_download_part()
360 	int ret;  in uart_start_cmd()  local
364 		ret = uart_read_8(&byte);  in uart_start_cmd()
365 		if (ret != 0U) {  in uart_start_cmd()
366 			return ret;  in uart_start_cmd()
374 	ret = uart_read_8(&byte);  in uart_start_cmd()
375 	if (ret != 0) {  in uart_start_cmd()
376 		return ret;  in uart_start_cmd()
404 	int ret;  in uart_read()  local
415 		ret = uart_receive_command(&command);  in uart_read()
416 		if (ret != 0) {  in uart_read()
420 			ret = uart_send_result(NACK_BYTE);  in uart_read()
421 			if (ret != 0U) {  in uart_read()
422 				return ret;  in uart_read()
437 			ret = get_cmd_command();  in uart_read()
441 			ret = get_version_command();  in uart_read()
445 			ret = get_id_command();  in uart_read()
449 			ret = uart_send_phase((uint32_t)buffer);  in uart_read()
450 			if ((ret == 0) && (handle.phase == PHASE_RESET)) {  in uart_read()
457 			ret = uart_download_part();  in uart_read()
461 			ret = uart_start_cmd(buffer);  in uart_read()
462 			if ((ret == 0) && (handle.phase == id)) {  in uart_read()
470 			ret = -EINVAL;  in uart_read()
474 		if (ret == 0) {  in uart_read()
475 			ret = uart_send_result(ACK_BYTE);  in uart_read()
477 			ret = uart_send_result(NACK_BYTE);  in uart_read()
479 		if (ret != 0) {  in uart_read()
480 			return ret;  in uart_read()
503 	int ret;  in stm32cubeprog_uart_load()  local
522 	ret = uart_send_result(NACK_BYTE);  in stm32cubeprog_uart_load()
523 	if (ret != 0) {  in stm32cubeprog_uart_load()
524 		return ret;  in stm32cubeprog_uart_load()