68 	struct uart_dma_stream dma_rx;  member
163 	if (data->dma_rx.buffer_len) {  in uart_xmc4xxx_isr()
171 		async_timer_start(&data->dma_rx.timeout_work, data->dma_rx.timeout);  in uart_xmc4xxx_isr()
412 	if (buffer_type == CURRENT_BUFFER && !data->dma_rx.buffer) {  in async_evt_rx_release_buffer()
421 		event.data.rx_buf.buf = data->dma_rx.buffer;  in async_evt_rx_release_buffer()
422 		data->dma_rx.buffer = NULL;  in async_evt_rx_release_buffer()
423 		data->dma_rx.buffer_len = 0;  in async_evt_rx_release_buffer()
438 	if (data->dma_rx.buffer_len == 0 || data->async_cb == NULL) {  in async_evt_rx_stopped()
442 	rx->buf = data->dma_rx.buffer;  in async_evt_rx_stopped()
443 	if (dma_get_status(data->dma_rx.dma_dev, data->dma_rx.dma_channel, &stat) == 0) {  in async_evt_rx_stopped()
444 		data->dma_rx.counter = data->dma_rx.buffer_len - stat.pending_length;  in async_evt_rx_stopped()
447 	rx->len = data->dma_rx.counter - data->dma_rx.offset;  in async_evt_rx_stopped()
448 	rx->offset = data->dma_rx.counter;  in async_evt_rx_stopped()
457 	data->dma_rx.buffer = NULL;  in async_evt_rx_disabled()
458 	data->dma_rx.buffer_len = 0;  in async_evt_rx_disabled()
459 	data->dma_rx.offset = 0;  in async_evt_rx_disabled()
460 	data->dma_rx.counter = 0;  in async_evt_rx_disabled()
470 				   .data.rx.buf = (uint8_t *)data->dma_rx.buffer,  in async_evt_rx_rdy()
471 				   .data.rx.len = data->dma_rx.counter - data->dma_rx.offset,  in async_evt_rx_rdy()
472 				   .data.rx.offset = data->dma_rx.offset};  in async_evt_rx_rdy()
474 	data->dma_rx.offset = data->dma_rx.counter;  in async_evt_rx_rdy()
516 	struct uart_xmc4xxx_data *data = CONTAINER_OF(rx_stream, struct uart_xmc4xxx_data, dma_rx);  in uart_xmc4xxx_async_rx_timeout()
520 	if (data->dma_rx.buffer_len == 0) {  in uart_xmc4xxx_async_rx_timeout()
525 	if (dma_get_status(data->dma_rx.dma_dev, data->dma_rx.dma_channel, &stat) == 0) {  in uart_xmc4xxx_async_rx_timeout()
526 		size_t rx_rcv_len = data->dma_rx.buffer_len - stat.pending_length;  in uart_xmc4xxx_async_rx_timeout()
528 		if (rx_rcv_len > data->dma_rx.offset) {  in uart_xmc4xxx_async_rx_timeout()
529 			data->dma_rx.counter = rx_rcv_len;  in uart_xmc4xxx_async_rx_timeout()
534 	async_timer_start(&data->dma_rx.timeout_work, data->dma_rx.timeout);  in uart_xmc4xxx_async_rx_timeout()
582 	if (data->dma_rx.dma_dev != NULL) {  in uart_xmc4xxx_async_init()
583 		if (!device_is_ready(data->dma_rx.dma_dev)) {  in uart_xmc4xxx_async_init()
587 		k_work_init_delayable(&data->dma_rx.timeout_work, uart_xmc4xxx_async_rx_timeout);  in uart_xmc4xxx_async_init()
589 			data->dma_rx.blk_cfg.source_address = (uint32_t)&config->uart->OUTR;  in uart_xmc4xxx_async_init()
591 			data->dma_rx.blk_cfg.source_address = (uint32_t)&config->uart->RBUF;  in uart_xmc4xxx_async_init()
594 		data->dma_rx.blk_cfg.source_addr_adj = DMA_ADDR_ADJ_NO_CHANGE;  in uart_xmc4xxx_async_init()
595 		data->dma_rx.blk_cfg.dest_addr_adj = DMA_ADDR_ADJ_INCREMENT;  in uart_xmc4xxx_async_init()
596 		data->dma_rx.dma_cfg.head_block = &data->dma_rx.blk_cfg;  in uart_xmc4xxx_async_init()
597 		data->dma_rx.dma_cfg.user_data = (void *)dev;  in uart_xmc4xxx_async_init()
694 	if (data->dma_rx.dma_dev == NULL) {  in uart_xmc4xxx_async_rx_enable()
698 	if (data->dma_rx.buffer_len != 0) {  in uart_xmc4xxx_async_rx_enable()
704 	data->dma_rx.buffer = buf;  in uart_xmc4xxx_async_rx_enable()
705 	data->dma_rx.buffer_len = len;  in uart_xmc4xxx_async_rx_enable()
706 	data->dma_rx.timeout = timeout;  in uart_xmc4xxx_async_rx_enable()
708 	data->dma_rx.blk_cfg.dest_address = (uint32_t)data->dma_rx.buffer;  in uart_xmc4xxx_async_rx_enable()
709 	data->dma_rx.blk_cfg.block_size = data->dma_rx.buffer_len;  in uart_xmc4xxx_async_rx_enable()
711 	ret = dma_config(data->dma_rx.dma_dev, data->dma_rx.dma_channel, &data->dma_rx.dma_cfg);  in uart_xmc4xxx_async_rx_enable()
721 	return dma_start(data->dma_rx.dma_dev, data->dma_rx.dma_channel);  in uart_xmc4xxx_async_rx_enable()
732 	__ASSERT_NO_MSG(channel == data->dma_rx.dma_channel);  in uart_xmc4xxx_dma_rx_cb()
734 	k_work_cancel_delayable(&data->dma_rx.timeout_work);  in uart_xmc4xxx_dma_rx_cb()
739 		dma_stop(data->dma_rx.dma_dev, data->dma_rx.dma_channel);  in uart_xmc4xxx_dma_rx_cb()
746 	if (data->dma_rx.buffer_len == 0) {  in uart_xmc4xxx_dma_rx_cb()
750 	data->dma_rx.counter = data->dma_rx.buffer_len;  in uart_xmc4xxx_dma_rx_cb()
757 		dma_stop(data->dma_rx.dma_dev, data->dma_rx.dma_channel);  in uart_xmc4xxx_dma_rx_cb()
762 	data->dma_rx.buffer = data->rx_next_buffer;  in uart_xmc4xxx_dma_rx_cb()
763 	data->dma_rx.buffer_len = data->rx_next_buffer_len;  in uart_xmc4xxx_dma_rx_cb()
764 	data->dma_rx.offset = 0;  in uart_xmc4xxx_dma_rx_cb()
765 	data->dma_rx.counter = 0;  in uart_xmc4xxx_dma_rx_cb()
769 	ret = dma_reload(data->dma_rx.dma_dev, data->dma_rx.dma_channel,  in uart_xmc4xxx_dma_rx_cb()
770 			 data->dma_rx.blk_cfg.source_address, (uint32_t)data->dma_rx.buffer,  in uart_xmc4xxx_dma_rx_cb()
771 			 data->dma_rx.buffer_len);  in uart_xmc4xxx_dma_rx_cb()
775 		dma_stop(data->dma_rx.dma_dev, data->dma_rx.dma_channel);  in uart_xmc4xxx_dma_rx_cb()
781 	dma_start(data->dma_rx.dma_dev, data->dma_rx.dma_channel);  in uart_xmc4xxx_dma_rx_cb()
784 	async_timer_start(&data->dma_rx.timeout_work, data->dma_rx.timeout);  in uart_xmc4xxx_dma_rx_cb()
795 	k_work_cancel_delayable(&data->dma_rx.timeout_work);  in uart_xmc4xxx_async_rx_disable()
799 	if (data->dma_rx.buffer_len == 0) {  in uart_xmc4xxx_async_rx_disable()
800 		__ASSERT_NO_MSG(data->dma_rx.buffer == NULL);  in uart_xmc4xxx_async_rx_disable()
805 	dma_stop(data->dma_rx.dma_dev, data->dma_rx.dma_channel);  in uart_xmc4xxx_async_rx_disable()
808 	if (dma_get_status(data->dma_rx.dma_dev, data->dma_rx.dma_channel, &stat) == 0) {  in uart_xmc4xxx_async_rx_disable()
809 		size_t rx_rcv_len = data->dma_rx.buffer_len - stat.pending_length;  in uart_xmc4xxx_async_rx_disable()
811 		if (rx_rcv_len > data->dma_rx.offset) {  in uart_xmc4xxx_async_rx_disable()
812 			data->dma_rx.counter = rx_rcv_len;  in uart_xmc4xxx_async_rx_disable()
866 	if (data->dma_rx.buffer_len == 0U) {  in uart_xmc4xxx_rx_buf_rsp()