181 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_tx_with_dma()  local
186 	tran_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);  in sirfsoc_uart_tx_with_dma()
187 	tran_start = (unsigned long)(xmit->buf + xmit->tail);  in sirfsoc_uart_tx_with_dma()
188 	if (uart_circ_empty(xmit) || uart_tx_stopped(port) ||  in sirfsoc_uart_tx_with_dma()
242 			xmit->buf + xmit->tail,  in sirfsoc_uart_tx_with_dma()
427 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_pio_tx_chars()  local
429 	while (!uart_circ_empty(xmit) &&  in sirfsoc_uart_pio_tx_chars()
434 				xmit->buf[xmit->tail]);  in sirfsoc_uart_pio_tx_chars()
435 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in sirfsoc_uart_pio_tx_chars()
439 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in sirfsoc_uart_pio_tx_chars()
448 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_tx_dma_complete_callback()  local
452 	xmit->tail = (xmit->tail + sirfport->transfer_size) &  in sirfsoc_uart_tx_dma_complete_callback()
455 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in sirfsoc_uart_tx_dma_complete_callback()
477 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_isr()  local
574 			if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {  in sirfsoc_uart_isr()
580 				if ((uart_circ_empty(xmit)) &&  in sirfsoc_uart_isr()
605 	sirfport->rx_dma_items.xmit.tail =  in sirfsoc_uart_start_next_rx_dma()
606 		sirfport->rx_dma_items.xmit.head = 0;  in sirfsoc_uart_start_next_rx_dma()
974 		sirfport->rx_dma_items.xmit.tail =  in sirfsoc_uart_startup()
975 			sirfport->rx_dma_items.xmit.head = 0;  in sirfsoc_uart_startup()
1007 	struct circ_buf *xmit;  in sirfsoc_uart_shutdown()  local
1009 	xmit = &sirfport->rx_dma_items.xmit;  in sirfsoc_uart_shutdown()
1028 			!CIRC_CNT(xmit->head, xmit->tail,  in sirfsoc_uart_shutdown()
1177 	struct circ_buf *xmit;  in sirfsoc_uart_rx_dma_hrtimer_callback()  local
1186 	xmit = &sirfport->rx_dma_items.xmit;  in sirfsoc_uart_rx_dma_hrtimer_callback()
1193 		xmit->head = SIRFSOC_RX_DMA_BUF_SIZE - tx_state.residue;  in sirfsoc_uart_rx_dma_hrtimer_callback()
1194 		sirfport->rx_last_pos = xmit->head;  in sirfsoc_uart_rx_dma_hrtimer_callback()
1197 	count = CIRC_CNT_TO_END(xmit->head, xmit->tail,  in sirfsoc_uart_rx_dma_hrtimer_callback()
1201 			(const unsigned char *)&xmit->buf[xmit->tail], count);  in sirfsoc_uart_rx_dma_hrtimer_callback()
1205 		xmit->tail = (xmit->tail + inserted) &  in sirfsoc_uart_rx_dma_hrtimer_callback()
1207 		count = CIRC_CNT_TO_END(xmit->head, xmit->tail,  in sirfsoc_uart_rx_dma_hrtimer_callback()
1239 			xmit->buf[xmit->head] =  in sirfsoc_uart_rx_dma_hrtimer_callback()
1241 			xmit->head = (xmit->head + 1) &  in sirfsoc_uart_rx_dma_hrtimer_callback()
1392 	sirfport->rx_dma_items.xmit.buf =  in sirfsoc_uart_probe()
1395 	if (!sirfport->rx_dma_items.xmit.buf) {  in sirfsoc_uart_probe()
1400 	sirfport->rx_dma_items.xmit.head =  in sirfsoc_uart_probe()
1401 		sirfport->rx_dma_items.xmit.tail = 0;  in sirfsoc_uart_probe()
1416 			sirfport->rx_dma_items.xmit.buf,  in sirfsoc_uart_probe()
1432 				sirfport->rx_dma_items.xmit.buf,  in sirfsoc_uart_remove()