57 #define	RD4(bas, reg)		\  argument
58 	bus_space_read_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)))
59 #define	WR4(bas, reg, value)	\  argument
60 	bus_space_write_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)), \
149 static int cdnc_uart_probe(struct uart_bas *bas);
150 static void cdnc_uart_init(struct uart_bas *bas, int, int, int, int);
151 static void cdnc_uart_term(struct uart_bas *bas);
152 static void cdnc_uart_putc(struct uart_bas *bas, int);
153 static int cdnc_uart_rxready(struct uart_bas *bas);
154 static int cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx);
175 cdnc_uart_probe(struct uart_bas *bas)  in cdnc_uart_probe()  argument
182 cdnc_uart_set_baud(struct uart_bas *bas, int baudrate)  in cdnc_uart_set_baud()  argument
194 		baudgen = (bas->rclk + (baudrate * (bauddiv + 1)) / 2) /  in cdnc_uart_set_baud()
199 		baud_out = bas->rclk / (baudgen * (bauddiv + 1));  in cdnc_uart_set_baud()
211 		WR4(bas, CDNC_UART_BAUDDIV_REG, best_bauddiv);  in cdnc_uart_set_baud()
212 		WR4(bas, CDNC_UART_BAUDGEN_REG, best_baudgen);  in cdnc_uart_set_baud()
219 cdnc_uart_set_params(struct uart_bas *bas, int baudrate, int databits,  in cdnc_uart_set_params()  argument
259 	WR4(bas, CDNC_UART_MODE_REG, mode_reg_value);  in cdnc_uart_set_params()
261 	if (baudrate > 0 && cdnc_uart_set_baud(bas, baudrate) < 0)  in cdnc_uart_set_params()
268 cdnc_uart_hw_init(struct uart_bas *bas)  in cdnc_uart_hw_init()  argument
272 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
276 	WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
277 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
280 	WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_hw_init()
285 	WR4(bas, CDNC_UART_RX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
286 	WR4(bas, CDNC_UART_RX_TIMEO_REG, 10);  in cdnc_uart_hw_init()
289 	WR4(bas, CDNC_UART_TX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
292 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
297 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, CDNC_UART_MODEM_CTRL_REG_DTR |  in cdnc_uart_hw_init()
305 cdnc_uart_init(struct uart_bas *bas, int baudrate, int databits, int stopbits,  in cdnc_uart_init()  argument
310 	cdnc_uart_hw_init(bas);  in cdnc_uart_init()
313 	(void)cdnc_uart_set_params(bas, baudrate, databits, stopbits, parity);  in cdnc_uart_init()
321 cdnc_uart_term(struct uart_bas *bas)  in cdnc_uart_term()  argument
332 cdnc_uart_putc(struct uart_bas *bas, int c)  in cdnc_uart_putc()  argument
336 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
340 	WR4(bas, CDNC_UART_FIFO, c);  in cdnc_uart_putc()
342 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
351 cdnc_uart_rxready(struct uart_bas *bas)  in cdnc_uart_rxready()  argument
354 	return ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_rxready()
362 cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx)  in cdnc_uart_getc()  argument
368 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_getc()
375 	c = RD4(bas, CDNC_UART_FIFO);  in cdnc_uart_getc()
435 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_attach()  local
440 		(void)cdnc_uart_set_params(bas, di->baudrate, di->databits,  in cdnc_uart_bus_attach()
443 		cdnc_uart_hw_init(bas);  in cdnc_uart_bus_attach()
448 	WR4(bas, CDNC_UART_IEN_REG,  in cdnc_uart_bus_attach()
460 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_transmit()  local
465 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
468 		WR4(bas, CDNC_UART_FIFO, sc->sc_txbuf[i]);  in cdnc_uart_bus_transmit()
471 	WR4(bas, CDNC_UART_IEN_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
482 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_setsig()  local
496 	modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG) &  in cdnc_uart_bus_setsig()
502 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_setsig()
511 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_receive()  local
518 	status = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_receive()
520 		WR4(bas, CDNC_UART_ISTAT_REG,  in cdnc_uart_bus_receive()
528 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_bus_receive()
530 		c = RD4(bas, CDNC_UART_FIFO) & 0xff;  in cdnc_uart_bus_receive()
537 			WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_FRAMING);  in cdnc_uart_bus_receive()
561 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ipend()  local
566 	istatus = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_ipend()
569 	WR4(bas, CDNC_UART_ISTAT_REG, istatus &  in cdnc_uart_bus_ipend()
581 		WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_ipend()
595 		WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_bus_ipend()
617 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_getsig()  local
625 		modem_status = RD4(bas, CDNC_UART_MODEM_STAT_REG);  in cdnc_uart_bus_getsig()
643 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ioctl()  local
651 		uart_ctrl = RD4(bas, CDNC_UART_CTRL_REG);  in cdnc_uart_bus_ioctl()
659 		WR4(bas, CDNC_UART_CTRL_REG, uart_ctrl);  in cdnc_uart_bus_ioctl()
662 		modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG);  in cdnc_uart_bus_ioctl()
667 		WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_ioctl()