60 #define	RD4(bas, reg)		\  argument
61 	bus_space_read_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)))
62 #define	WR4(bas, reg, value)	\  argument
63 	bus_space_write_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)), \
153 static int cdnc_uart_probe(struct uart_bas *bas);
154 static void cdnc_uart_init(struct uart_bas *bas, int, int, int, int);
155 static void cdnc_uart_term(struct uart_bas *bas);
156 static void cdnc_uart_putc(struct uart_bas *bas, int);
157 static int cdnc_uart_rxready(struct uart_bas *bas);
158 static int cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx);
179 cdnc_uart_probe(struct uart_bas *bas)  in cdnc_uart_probe()  argument
186 cdnc_uart_set_baud(struct uart_bas *bas, int baudrate)  in cdnc_uart_set_baud()  argument
198 		baudgen = (bas->rclk + (baudrate * (bauddiv + 1)) / 2) /  in cdnc_uart_set_baud()
203 		baud_out = bas->rclk / (baudgen * (bauddiv + 1));  in cdnc_uart_set_baud()
215 		WR4(bas, CDNC_UART_BAUDDIV_REG, best_bauddiv);  in cdnc_uart_set_baud()
216 		WR4(bas, CDNC_UART_BAUDGEN_REG, best_baudgen);  in cdnc_uart_set_baud()
223 cdnc_uart_set_params(struct uart_bas *bas, int baudrate, int databits,  in cdnc_uart_set_params()  argument
263 	WR4(bas, CDNC_UART_MODE_REG, mode_reg_value);  in cdnc_uart_set_params()
265 	if (baudrate > 0 && cdnc_uart_set_baud(bas, baudrate) < 0)  in cdnc_uart_set_params()
272 cdnc_uart_hw_init(struct uart_bas *bas)  in cdnc_uart_hw_init()  argument
276 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
280 	WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
281 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
284 	WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_hw_init()
289 	WR4(bas, CDNC_UART_RX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
290 	WR4(bas, CDNC_UART_RX_TIMEO_REG, 10);  in cdnc_uart_hw_init()
293 	WR4(bas, CDNC_UART_TX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
296 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
301 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, CDNC_UART_MODEM_CTRL_REG_DTR |  in cdnc_uart_hw_init()
309 cdnc_uart_init(struct uart_bas *bas, int baudrate, int databits, int stopbits,  in cdnc_uart_init()  argument
314 	cdnc_uart_hw_init(bas);  in cdnc_uart_init()
317 	(void)cdnc_uart_set_params(bas, baudrate, databits, stopbits, parity);  in cdnc_uart_init()
325 cdnc_uart_term(struct uart_bas *bas)  in cdnc_uart_term()  argument
336 cdnc_uart_putc(struct uart_bas *bas, int c)  in cdnc_uart_putc()  argument
340 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
344 	WR4(bas, CDNC_UART_FIFO, c);  in cdnc_uart_putc()
346 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
355 cdnc_uart_rxready(struct uart_bas *bas)  in cdnc_uart_rxready()  argument
358 	return ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_rxready()
366 cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx)  in cdnc_uart_getc()  argument
372 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_getc()
379 	c = RD4(bas, CDNC_UART_FIFO);  in cdnc_uart_getc()
439 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_attach()  local
444 		(void)cdnc_uart_set_params(bas, di->baudrate, di->databits,  in cdnc_uart_bus_attach()
447 		cdnc_uart_hw_init(bas);  in cdnc_uart_bus_attach()
452 	WR4(bas, CDNC_UART_IEN_REG,  in cdnc_uart_bus_attach()
464 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_transmit()  local
469 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
472 		WR4(bas, CDNC_UART_FIFO, sc->sc_txbuf[i]);  in cdnc_uart_bus_transmit()
475 	WR4(bas, CDNC_UART_IEN_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
486 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_setsig()  local
500 	modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG) &  in cdnc_uart_bus_setsig()
506 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_setsig()
515 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_receive()  local
522 	status = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_receive()
524 		WR4(bas, CDNC_UART_ISTAT_REG,  in cdnc_uart_bus_receive()
532 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_bus_receive()
534 		c = RD4(bas, CDNC_UART_FIFO) & 0xff;  in cdnc_uart_bus_receive()
541 			WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_FRAMING);  in cdnc_uart_bus_receive()
565 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ipend()  local
570 	istatus = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_ipend()
573 	WR4(bas, CDNC_UART_ISTAT_REG, istatus &  in cdnc_uart_bus_ipend()
585 		WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_ipend()
599 		WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_bus_ipend()
621 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_getsig()  local
629 		modem_status = RD4(bas, CDNC_UART_MODEM_STAT_REG);  in cdnc_uart_bus_getsig()
647 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ioctl()  local
655 		uart_ctrl = RD4(bas, CDNC_UART_CTRL_REG);  in cdnc_uart_bus_ioctl()
663 		WR4(bas, CDNC_UART_CTRL_REG, uart_ctrl);  in cdnc_uart_bus_ioctl()
666 		modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG);  in cdnc_uart_bus_ioctl()
671 		WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_ioctl()