54 #define	RD4(bas, reg)		\  argument
55 	bus_space_read_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)))
56 #define	WR4(bas, reg, value)	\  argument
57 	bus_space_write_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)), \
146 static int cdnc_uart_probe(struct uart_bas *bas);
147 static void cdnc_uart_init(struct uart_bas *bas, int, int, int, int);
148 static void cdnc_uart_term(struct uart_bas *bas);
149 static void cdnc_uart_putc(struct uart_bas *bas, int);
150 static int cdnc_uart_rxready(struct uart_bas *bas);
151 static int cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx);
172 cdnc_uart_probe(struct uart_bas *bas)  in cdnc_uart_probe()  argument
179 cdnc_uart_set_baud(struct uart_bas *bas, int baudrate)  in cdnc_uart_set_baud()  argument
191 		baudgen = (bas->rclk + (baudrate * (bauddiv + 1)) / 2) /  in cdnc_uart_set_baud()
196 		baud_out = bas->rclk / (baudgen * (bauddiv + 1));  in cdnc_uart_set_baud()
208 		WR4(bas, CDNC_UART_BAUDDIV_REG, best_bauddiv);  in cdnc_uart_set_baud()
209 		WR4(bas, CDNC_UART_BAUDGEN_REG, best_baudgen);  in cdnc_uart_set_baud()
216 cdnc_uart_set_params(struct uart_bas *bas, int baudrate, int databits,  in cdnc_uart_set_params()  argument
256 	WR4(bas, CDNC_UART_MODE_REG, mode_reg_value);  in cdnc_uart_set_params()
258 	if (baudrate > 0 && cdnc_uart_set_baud(bas, baudrate) < 0)  in cdnc_uart_set_params()
265 cdnc_uart_hw_init(struct uart_bas *bas)  in cdnc_uart_hw_init()  argument
269 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
273 	WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
274 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
277 	WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_hw_init()
282 	WR4(bas, CDNC_UART_RX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
283 	WR4(bas, CDNC_UART_RX_TIMEO_REG, 10);  in cdnc_uart_hw_init()
286 	WR4(bas, CDNC_UART_TX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
289 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
294 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, CDNC_UART_MODEM_CTRL_REG_DTR |  in cdnc_uart_hw_init()
302 cdnc_uart_init(struct uart_bas *bas, int baudrate, int databits, int stopbits,  in cdnc_uart_init()  argument
307 	cdnc_uart_hw_init(bas);  in cdnc_uart_init()
310 	(void)cdnc_uart_set_params(bas, baudrate, databits, stopbits, parity);  in cdnc_uart_init()
318 cdnc_uart_term(struct uart_bas *bas)  in cdnc_uart_term()  argument
329 cdnc_uart_putc(struct uart_bas *bas, int c)  in cdnc_uart_putc()  argument
333 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
337 	WR4(bas, CDNC_UART_FIFO, c);  in cdnc_uart_putc()
339 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
348 cdnc_uart_rxready(struct uart_bas *bas)  in cdnc_uart_rxready()  argument
351 	return ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_rxready()
359 cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx)  in cdnc_uart_getc()  argument
365 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_getc()
372 	c = RD4(bas, CDNC_UART_FIFO);  in cdnc_uart_getc()
432 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_attach()  local
437 		(void)cdnc_uart_set_params(bas, di->baudrate, di->databits,  in cdnc_uart_bus_attach()
440 		cdnc_uart_hw_init(bas);  in cdnc_uart_bus_attach()
445 	WR4(bas, CDNC_UART_IEN_REG,  in cdnc_uart_bus_attach()
457 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_transmit()  local
462 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
465 		WR4(bas, CDNC_UART_FIFO, sc->sc_txbuf[i]);  in cdnc_uart_bus_transmit()
468 	WR4(bas, CDNC_UART_IEN_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
479 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_setsig()  local
493 	modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG) &  in cdnc_uart_bus_setsig()
499 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_setsig()
508 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_receive()  local
515 	status = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_receive()
517 		WR4(bas, CDNC_UART_ISTAT_REG,  in cdnc_uart_bus_receive()
525 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_bus_receive()
527 		c = RD4(bas, CDNC_UART_FIFO) & 0xff;  in cdnc_uart_bus_receive()
534 			WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_FRAMING);  in cdnc_uart_bus_receive()
558 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ipend()  local
563 	istatus = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_ipend()
566 	WR4(bas, CDNC_UART_ISTAT_REG, istatus &  in cdnc_uart_bus_ipend()
578 		WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_ipend()
592 		WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_bus_ipend()
614 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_getsig()  local
622 		modem_status = RD4(bas, CDNC_UART_MODEM_STAT_REG);  in cdnc_uart_bus_getsig()
640 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ioctl()  local
648 		uart_ctrl = RD4(bas, CDNC_UART_CTRL_REG);  in cdnc_uart_bus_ioctl()
656 		WR4(bas, CDNC_UART_CTRL_REG, uart_ctrl);  in cdnc_uart_bus_ioctl()
659 		modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG);  in cdnc_uart_bus_ioctl()
664 		WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_ioctl()