180 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_tx_with_dma()  local
185 	tran_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);  in sirfsoc_uart_tx_with_dma()
186 	tran_start = (unsigned long)(xmit->buf + xmit->tail);  in sirfsoc_uart_tx_with_dma()
187 	if (uart_circ_empty(xmit) || uart_tx_stopped(port) ||  in sirfsoc_uart_tx_with_dma()
241 			xmit->buf + xmit->tail,  in sirfsoc_uart_tx_with_dma()
426 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_pio_tx_chars()  local
428 	while (!uart_circ_empty(xmit) &&  in sirfsoc_uart_pio_tx_chars()
433 				xmit->buf[xmit->tail]);  in sirfsoc_uart_pio_tx_chars()
434 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in sirfsoc_uart_pio_tx_chars()
438 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in sirfsoc_uart_pio_tx_chars()
447 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_tx_dma_complete_callback()  local
451 	xmit->tail = (xmit->tail + sirfport->transfer_size) &  in sirfsoc_uart_tx_dma_complete_callback()
454 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in sirfsoc_uart_tx_dma_complete_callback()
476 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_isr()  local
573 			if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {  in sirfsoc_uart_isr()
579 				if ((uart_circ_empty(xmit)) &&  in sirfsoc_uart_isr()
604 	sirfport->rx_dma_items.xmit.tail =  in sirfsoc_uart_start_next_rx_dma()
605 		sirfport->rx_dma_items.xmit.head = 0;  in sirfsoc_uart_start_next_rx_dma()
973 		sirfport->rx_dma_items.xmit.tail =  in sirfsoc_uart_startup()
974 			sirfport->rx_dma_items.xmit.head = 0;  in sirfsoc_uart_startup()
1006 	struct circ_buf *xmit;  in sirfsoc_uart_shutdown()  local
1008 	xmit = &sirfport->rx_dma_items.xmit;  in sirfsoc_uart_shutdown()
1027 			!CIRC_CNT(xmit->head, xmit->tail,  in sirfsoc_uart_shutdown()
1176 	struct circ_buf *xmit;  in sirfsoc_uart_rx_dma_hrtimer_callback()  local
1185 	xmit = &sirfport->rx_dma_items.xmit;  in sirfsoc_uart_rx_dma_hrtimer_callback()
1192 		xmit->head = SIRFSOC_RX_DMA_BUF_SIZE - tx_state.residue;  in sirfsoc_uart_rx_dma_hrtimer_callback()
1193 		sirfport->rx_last_pos = xmit->head;  in sirfsoc_uart_rx_dma_hrtimer_callback()
1196 	count = CIRC_CNT_TO_END(xmit->head, xmit->tail,  in sirfsoc_uart_rx_dma_hrtimer_callback()
1200 			(const unsigned char *)&xmit->buf[xmit->tail], count);  in sirfsoc_uart_rx_dma_hrtimer_callback()
1204 		xmit->tail = (xmit->tail + inserted) &  in sirfsoc_uart_rx_dma_hrtimer_callback()
1206 		count = CIRC_CNT_TO_END(xmit->head, xmit->tail,  in sirfsoc_uart_rx_dma_hrtimer_callback()
1238 			xmit->buf[xmit->head] =  in sirfsoc_uart_rx_dma_hrtimer_callback()
1240 			xmit->head = (xmit->head + 1) &  in sirfsoc_uart_rx_dma_hrtimer_callback()
1395 	sirfport->rx_dma_items.xmit.buf =  in sirfsoc_uart_probe()
1398 	if (!sirfport->rx_dma_items.xmit.buf) {  in sirfsoc_uart_probe()
1403 	sirfport->rx_dma_items.xmit.head =  in sirfsoc_uart_probe()
1404 		sirfport->rx_dma_items.xmit.tail = 0;  in sirfsoc_uart_probe()
1419 			sirfport->rx_dma_items.xmit.buf,  in sirfsoc_uart_probe()
1435 				sirfport->rx_dma_items.xmit.buf,  in sirfsoc_uart_remove()