diff options
Diffstat (limited to 'include/ns16550.h')
| -rw-r--r-- | include/ns16550.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/ns16550.h b/include/ns16550.h index 9ea81e94632..9c417b27363 100644 --- a/include/ns16550.h +++ b/include/ns16550.h @@ -111,6 +111,11 @@ typedef volatile struct NS16550 *NS16550_t; #define UART_LCR_DLAB 0x80 /* Divisor latch access bit */ /* + * These are the definitions for the Supplementary Status Register + */ +#define UART_SSR_TX_FIFO_FULL 0x01 /* TX FiFo full */ + +/* * These are the definitions for the Line Status Register */ #define UART_LSR_DR 0x01 /* Data ready */ @@ -163,3 +168,6 @@ void NS16550_putc (NS16550_t com_port, char c); char NS16550_getc (NS16550_t com_port); int NS16550_tstc (NS16550_t com_port); void NS16550_reinit (NS16550_t com_port, int baud_divisor); +#ifdef CONFIG_SERIAL_OUTPUT_FIFO +void NS16550_flush_tx_fifo(NS16550_t com_port); +#endif |