34 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_serial_tx_on()  local
36 	if (cfg->de != NULL) {  in modbus_serial_tx_on()
37 		gpio_pin_set(cfg->de->port, cfg->de->pin, 1);  in modbus_serial_tx_on()
40 	uart_irq_tx_enable(cfg->dev);  in modbus_serial_tx_on()
45 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_serial_tx_off()  local
47 	uart_irq_tx_disable(cfg->dev);  in modbus_serial_tx_off()
48 	if (cfg->de != NULL) {  in modbus_serial_tx_off()
49 		gpio_pin_set(cfg->de->port, cfg->de->pin, 0);  in modbus_serial_tx_off()
55 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_serial_rx_on()  local
57 	if (cfg->re != NULL) {  in modbus_serial_rx_on()
58 		gpio_pin_set(cfg->re->port, cfg->re->pin, 1);  in modbus_serial_rx_on()
61 	uart_irq_rx_enable(cfg->dev);  in modbus_serial_rx_on()
66 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_serial_rx_off()  local
68 	uart_irq_rx_disable(cfg->dev);  in modbus_serial_rx_off()
69 	if (cfg->re != NULL) {  in modbus_serial_rx_off()
70 		gpio_pin_set(cfg->re->port, cfg->re->pin, 0);  in modbus_serial_rx_off()
101 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_ascii_rx_adu()  local
108 	rx_size =  cfg->uart_buf_ctr;  in modbus_ascii_rx_adu()
121 	if ((cfg->uart_buf[0] != MODBUS_ASCII_START_FRAME_CHAR) ||  in modbus_ascii_rx_adu()
122 	    (cfg->uart_buf[rx_size - 2] != MODBUS_ASCII_END_FRAME_CHAR1) ||  in modbus_ascii_rx_adu()
123 	    (cfg->uart_buf[rx_size - 1] != MODBUS_ASCII_END_FRAME_CHAR2)) {  in modbus_ascii_rx_adu()
131 	pmsg = &cfg->uart_buf[1];  in modbus_ascii_rx_adu()
161 	calc_lrc = modbus_ascii_get_lrc(&cfg->uart_buf[1],  in modbus_ascii_rx_adu()
162 					(cfg->uart_buf_ctr - 5) / 2);  in modbus_ascii_rx_adu()
187 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_ascii_tx_adu()  local
193 	cfg->uart_buf[0] = MODBUS_ASCII_START_FRAME_CHAR;  in modbus_ascii_tx_adu()
196 	pbuf = &cfg->uart_buf[1];  in modbus_ascii_tx_adu()
215 	lrc = modbus_ascii_get_lrc(&cfg->uart_buf[1], (tx_bytes - 1) / 2);  in modbus_ascii_tx_adu()
224 	cfg->uart_buf_ctr = tx_bytes;  in modbus_ascii_tx_adu()
225 	cfg->uart_buf_ptr = &cfg->uart_buf[0];  in modbus_ascii_tx_adu()
245 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_rtu_rx_adu()  local
251 	if ((cfg->uart_buf_ctr < MODBUS_RTU_MIN_MSG_SIZE) ||  in modbus_rtu_rx_adu()
252 	    (cfg->uart_buf_ctr > CONFIG_MODBUS_BUFFER_SIZE)) {  in modbus_rtu_rx_adu()
257 	ctx->rx_adu.unit_id = cfg->uart_buf[0];  in modbus_rtu_rx_adu()
258 	ctx->rx_adu.fc = cfg->uart_buf[1];  in modbus_rtu_rx_adu()
259 	data_ptr = &cfg->uart_buf[2];  in modbus_rtu_rx_adu()
261 	ctx->rx_adu.length = cfg->uart_buf_ctr - 4;  in modbus_rtu_rx_adu()
263 	crc_idx = cfg->uart_buf_ctr - sizeof(uint16_t);  in modbus_rtu_rx_adu()
267 	ctx->rx_adu.crc = sys_get_le16(&cfg->uart_buf[crc_idx]);  in modbus_rtu_rx_adu()
269 	calc_crc = crc16_ansi(&cfg->uart_buf[0],  in modbus_rtu_rx_adu()
270 			      cfg->uart_buf_ctr - sizeof(ctx->rx_adu.crc));  in modbus_rtu_rx_adu()
282 	struct modbus_serial_config *cfg = ctx->cfg;  in rtu_tx_adu()  local
286 	cfg->uart_buf[0] = ctx->tx_adu.unit_id;  in rtu_tx_adu()
287 	cfg->uart_buf[1] = ctx->tx_adu.fc;  in rtu_tx_adu()
289 	data_ptr = &cfg->uart_buf[2];  in rtu_tx_adu()
293 	ctx->tx_adu.crc = crc16_ansi(&cfg->uart_buf[0], ctx->tx_adu.length + 2);  in rtu_tx_adu()
295 		     &cfg->uart_buf[ctx->tx_adu.length + 2]);  in rtu_tx_adu()
298 	cfg->uart_buf_ctr = tx_bytes;  in rtu_tx_adu()
299 	cfg->uart_buf_ptr = &cfg->uart_buf[0];  in rtu_tx_adu()
301 	LOG_HEXDUMP_DBG(cfg->uart_buf, cfg->uart_buf_ctr, "uart_buf");  in rtu_tx_adu()
313 	struct modbus_serial_config *cfg = ctx->cfg;  in cb_handler_rx()  local
319 		if (uart_fifo_read(cfg->dev, &c, 1) != 1) {  in cb_handler_rx()
326 			cfg->uart_buf_ptr = &cfg->uart_buf[0];  in cb_handler_rx()
327 			cfg->uart_buf_ctr = 0;  in cb_handler_rx()
330 		if (cfg->uart_buf_ctr < CONFIG_MODBUS_BUFFER_SIZE) {  in cb_handler_rx()
331 			*cfg->uart_buf_ptr++ = c;  in cb_handler_rx()
332 			cfg->uart_buf_ctr++;  in cb_handler_rx()
342 		if (cfg->uart_buf_ctr == CONFIG_MODBUS_BUFFER_SIZE) {  in cb_handler_rx()
349 		k_timer_start(&cfg->rtu_timer,  in cb_handler_rx()
350 			      K_USEC(cfg->rtu_timeout), K_NO_WAIT);  in cb_handler_rx()
352 		n = uart_fifo_read(cfg->dev, cfg->uart_buf_ptr,  in cb_handler_rx()
354 				    cfg->uart_buf_ctr));  in cb_handler_rx()
356 		cfg->uart_buf_ptr += n;  in cb_handler_rx()
357 		cfg->uart_buf_ctr += n;  in cb_handler_rx()
363 	struct modbus_serial_config *cfg = ctx->cfg;  in cb_handler_tx()  local
366 	if (cfg->uart_buf_ctr > 0) {  in cb_handler_tx()
367 		n = uart_fifo_fill(cfg->dev, cfg->uart_buf_ptr,  in cb_handler_tx()
368 				   cfg->uart_buf_ctr);  in cb_handler_tx()
369 		cfg->uart_buf_ctr -= n;  in cb_handler_tx()
370 		cfg->uart_buf_ptr += n;  in cb_handler_tx()
378 	if (uart_irq_tx_complete(cfg->dev)) {  in cb_handler_tx()
380 		cfg->uart_buf_ptr = &cfg->uart_buf[0];  in cb_handler_tx()
424 	struct modbus_serial_config *cfg = ctx->cfg;  in configure_gpio()  local
426 	if (cfg->de != NULL) {  in configure_gpio()
427 		if (!device_is_ready(cfg->de->port)) {  in configure_gpio()
431 		if (gpio_pin_configure_dt(cfg->de, GPIO_OUTPUT_INACTIVE)) {  in configure_gpio()
437 	if (cfg->re != NULL) {  in configure_gpio()
438 		if (!device_is_ready(cfg->re->port)) {  in configure_gpio()
442 		if (gpio_pin_configure_dt(cfg->re, GPIO_OUTPUT_INACTIVE)) {  in configure_gpio()
453 	struct modbus_serial_config *cfg = ctx->cfg;  in configure_uart()  local
494 	if (uart_configure(cfg->dev, &uart_cfg) != 0) {  in configure_uart()
514 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_serial_rx_adu()  local
533 	cfg->uart_buf_ctr = 0;  in modbus_serial_rx_adu()
534 	cfg->uart_buf_ptr = &cfg->uart_buf[0];  in modbus_serial_rx_adu()
560 	struct modbus_serial_config *cfg = ctx->cfg;  in modbus_serial_init()  local
573 	if (!device_is_ready(cfg->dev)) {  in modbus_serial_init()
574 		LOG_ERR("Bus device %s is not ready", cfg->dev->name);  in modbus_serial_init()
585 		cfg->rtu_timeout = (numof_bits * if_delay_max) /  in modbus_serial_init()
588 		cfg->rtu_timeout = (numof_bits * if_delay_max) / 38400;  in modbus_serial_init()
595 	cfg->uart_buf_ctr = 0;  in modbus_serial_init()
596 	cfg->uart_buf_ptr = &cfg->uart_buf[0];  in modbus_serial_init()
598 	uart_irq_callback_user_data_set(cfg->dev, uart_cb_handler, ctx);  in modbus_serial_init()
599 	k_timer_init(&cfg->rtu_timer, rtu_tmr_handler, NULL);  in modbus_serial_init()
600 	k_timer_user_data_set(&cfg->rtu_timer, ctx);  in modbus_serial_init()
603 	LOG_INF("RTU timeout %u us", cfg->rtu_timeout);  in modbus_serial_init()
612 	k_timer_stop(&ctx->cfg->rtu_timer);  in modbus_serial_disable()