58 static int lowrisc_uart_probe(struct uart_bas *bas);
59 static void lowrisc_uart_init(struct uart_bas *bas, int, int, int, int);
60 static void lowrisc_uart_term(struct uart_bas *bas);
61 static void lowrisc_uart_putc(struct uart_bas *bas, int);
62 static int lowrisc_uart_rxready(struct uart_bas *bas);
63 static int lowrisc_uart_getc(struct uart_bas *bas, struct mtx *);
75 lowrisc_uart_probe(struct uart_bas *bas)  in lowrisc_uart_probe()  argument
82 lowrisc_uart_getbaud(struct uart_bas *bas)  in lowrisc_uart_getbaud()  argument
89 lowrisc_uart_init(struct uart_bas *bas, int baudrate, int databits,   in lowrisc_uart_init()  argument
97 lowrisc_uart_term(struct uart_bas *bas)  in lowrisc_uart_term()  argument
104 lowrisc_uart_putc(struct uart_bas *bas, int c)  in lowrisc_uart_putc()  argument
107 	while (GETREG(bas, UART_DR) & DR_TX_FIFO_FULL)  in lowrisc_uart_putc()
110 	SETREG(bas, UART_DR, c);  in lowrisc_uart_putc()
114 lowrisc_uart_rxready(struct uart_bas *bas)  in lowrisc_uart_rxready()  argument
117 	if (GETREG(bas, UART_DR) & DR_RX_FIFO_EMPTY)  in lowrisc_uart_rxready()
124 lowrisc_uart_getc(struct uart_bas *bas, struct mtx *hwmtx)  in lowrisc_uart_getc()  argument
129 	SETREG(bas, UART_INT_STATUS, INT_STATUS_ACK);  in lowrisc_uart_getc()
130 	reg = GETREG(bas, UART_DR);  in lowrisc_uart_getc()
193 	struct uart_bas *bas;  in lowrisc_uart_bus_attach()  local
196 	bas = &sc->sc_bas;  in lowrisc_uart_bus_attach()
199 		lowrisc_uart_init(bas, di->baudrate, di->databits, di->stopbits,  in lowrisc_uart_bus_attach()
202 		lowrisc_uart_init(bas, DEFAULT_BAUD_RATE, 8, 1, 0);  in lowrisc_uart_bus_attach()
241 	struct uart_bas *bas;  in lowrisc_uart_bus_ioctl()  local
244 	bas = &sc->sc_bas;  in lowrisc_uart_bus_ioctl()
252 		*(u_int*)data = lowrisc_uart_getbaud(bas);  in lowrisc_uart_bus_ioctl()
266 	struct uart_bas *bas;  in lowrisc_uart_bus_ipend()  local
269 	bas = &sc->sc_bas;  in lowrisc_uart_bus_ipend()
274 	if ((GETREG(bas, UART_DR) & DR_RX_FIFO_EMPTY) == 0)  in lowrisc_uart_bus_ipend()
276 	SETREG(bas, UART_INT_STATUS, INT_STATUS_ACK);  in lowrisc_uart_bus_ipend()
320 	struct uart_bas *bas;  in lowrisc_uart_bus_receive()  local
323 	bas = &sc->sc_bas;  in lowrisc_uart_bus_receive()
333 		reg = GETREG(bas, UART_DR);  in lowrisc_uart_bus_receive()
334 		SETREG(bas, UART_INT_STATUS, INT_STATUS_ACK);  in lowrisc_uart_bus_receive()
353 	struct uart_bas *bas;  in lowrisc_uart_bus_transmit()  local
356 	bas = &sc->sc_bas;  in lowrisc_uart_bus_transmit()
360 		while (GETREG(bas, UART_DR) & DR_TX_FIFO_FULL)  in lowrisc_uart_bus_transmit()
362 		SETREG(bas, UART_DR, sc->sc_txbuf[i] & 0xff);  in lowrisc_uart_bus_transmit()