Lines Matching refs:xmit
145 struct circ_buf *xmit = &port->info->xmit;
154 if (uart_tx_stopped(port) || uart_circ_empty(xmit)) {
160 /* send xmit->buf[xmit->tail]
162 writel(xmit->buf[xmit->tail], port->membase + UART_DR);
163 xmit->tail = (xmit->tail + 1) &
166 if (uart_circ_empty(xmit))
170 if (uart_circ_empty(xmit))
190 struct circ_buf *xmit = &port->info->xmit;
192 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
199 if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)