347 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_pio_tx()  local
352 	while (!uart_circ_empty(xmit) &&  in lpuart_pio_tx()
354 		writeb(xmit->buf[xmit->tail], sport->port.membase + UARTDR);  in lpuart_pio_tx()
355 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in lpuart_pio_tx()
359 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in lpuart_pio_tx()
362 	if (uart_circ_empty(xmit))  in lpuart_pio_tx()
371 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_dma_tx()  local
377 	tx_bus_addr = sport->dma_tx_buf_bus + xmit->tail;  in lpuart_dma_tx()
398 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_prepare_tx()  local
399 	unsigned long count =  CIRC_CNT_TO_END(xmit->head,  in lpuart_prepare_tx()
400 					xmit->tail, UART_XMIT_SIZE);  in lpuart_prepare_tx()
418 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_dma_tx_complete()  local
425 	xmit->tail = (xmit->tail + sport->dma_tx_bytes) & (UART_XMIT_SIZE - 1);  in lpuart_dma_tx_complete()
428 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in lpuart_dma_tx_complete()
532 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_transmit_buffer()  local
534 	while (!uart_circ_empty(xmit) &&  in lpuart_transmit_buffer()
536 		writeb(xmit->buf[xmit->tail], sport->port.membase + UARTDR);  in lpuart_transmit_buffer()
537 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in lpuart_transmit_buffer()
541 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in lpuart_transmit_buffer()
544 	if (uart_circ_empty(xmit))  in lpuart_transmit_buffer()
550 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart32_transmit_buffer()  local
556 	while (!uart_circ_empty(xmit) && (txcnt < sport->txfifo_size)) {  in lpuart32_transmit_buffer()
557 		lpuart32_write(xmit->buf[xmit->tail], sport->port.membase + UARTDATA);  in lpuart32_transmit_buffer()
558 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in lpuart32_transmit_buffer()
565 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in lpuart32_transmit_buffer()
568 	if (uart_circ_empty(xmit))  in lpuart32_transmit_buffer()
576 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_start_tx()  local
583 		if (!uart_circ_empty(xmit) && !sport->dma_tx_in_progress)  in lpuart_start_tx()
606 	struct circ_buf *xmit = &sport->port.state->xmit;  in lpuart_txint()  local
618 	if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {  in lpuart_txint()
631 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in lpuart_txint()
973 				sport->port.state->xmit.buf,  in lpuart_dma_tx_request()
981 	dma_buf = sport->port.state->xmit.buf;  in lpuart_dma_tx_request()