Lines Matching defs:xmit
129 struct circ_buf *xmit = &port->info->xmit;
138 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
144 *CSR_UARTDR = xmit->buf[xmit->tail];
145 xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
147 if (uart_circ_empty(xmit))
151 if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
154 if (uart_circ_empty(xmit))