55 #define	RD4(bas, reg)		\  argument
56 	bus_space_read_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)))
57 #define	WR4(bas, reg, value)	\  argument
58 	bus_space_write_4((bas)->bst, (bas)->bsh, uart_regofs((bas), (reg)), \
147 static int cdnc_uart_probe(struct uart_bas *bas);
148 static void cdnc_uart_init(struct uart_bas *bas, int, int, int, int);
149 static void cdnc_uart_term(struct uart_bas *bas);
150 static void cdnc_uart_putc(struct uart_bas *bas, int);
151 static int cdnc_uart_rxready(struct uart_bas *bas);
152 static int cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx);
173 cdnc_uart_probe(struct uart_bas *bas)  in cdnc_uart_probe()  argument
180 cdnc_uart_set_baud(struct uart_bas *bas, int baudrate)  in cdnc_uart_set_baud()  argument
192 		baudgen = (bas->rclk + (baudrate * (bauddiv + 1)) / 2) /  in cdnc_uart_set_baud()
197 		baud_out = bas->rclk / (baudgen * (bauddiv + 1));  in cdnc_uart_set_baud()
209 		WR4(bas, CDNC_UART_BAUDDIV_REG, best_bauddiv);  in cdnc_uart_set_baud()
210 		WR4(bas, CDNC_UART_BAUDGEN_REG, best_baudgen);  in cdnc_uart_set_baud()
217 cdnc_uart_set_params(struct uart_bas *bas, int baudrate, int databits,  in cdnc_uart_set_params()  argument
257 	WR4(bas, CDNC_UART_MODE_REG, mode_reg_value);  in cdnc_uart_set_params()
259 	if (baudrate > 0 && cdnc_uart_set_baud(bas, baudrate) < 0)  in cdnc_uart_set_params()
266 cdnc_uart_hw_init(struct uart_bas *bas)  in cdnc_uart_hw_init()  argument
270 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
274 	WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
275 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_ALL);  in cdnc_uart_hw_init()
278 	WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_hw_init()
283 	WR4(bas, CDNC_UART_RX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
284 	WR4(bas, CDNC_UART_RX_TIMEO_REG, 10);  in cdnc_uart_hw_init()
287 	WR4(bas, CDNC_UART_TX_WATER_REG, UART_FIFO_SIZE/2);  in cdnc_uart_hw_init()
290 	WR4(bas, CDNC_UART_CTRL_REG,  in cdnc_uart_hw_init()
295 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, CDNC_UART_MODEM_CTRL_REG_DTR |  in cdnc_uart_hw_init()
303 cdnc_uart_init(struct uart_bas *bas, int baudrate, int databits, int stopbits,  in cdnc_uart_init()  argument
308 	cdnc_uart_hw_init(bas);  in cdnc_uart_init()
311 	(void)cdnc_uart_set_params(bas, baudrate, databits, stopbits, parity);  in cdnc_uart_init()
319 cdnc_uart_term(struct uart_bas *bas)  in cdnc_uart_term()  argument
330 cdnc_uart_putc(struct uart_bas *bas, int c)  in cdnc_uart_putc()  argument
334 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
338 	WR4(bas, CDNC_UART_FIFO, c);  in cdnc_uart_putc()
340 	while ((RD4(bas,CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_putc()
349 cdnc_uart_rxready(struct uart_bas *bas)  in cdnc_uart_rxready()  argument
352 	return ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_rxready()
360 cdnc_uart_getc(struct uart_bas *bas, struct mtx *mtx)  in cdnc_uart_getc()  argument
366 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_getc()
373 	c = RD4(bas, CDNC_UART_FIFO);  in cdnc_uart_getc()
433 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_attach()  local
438 		(void)cdnc_uart_set_params(bas, di->baudrate, di->databits,  in cdnc_uart_bus_attach()
441 		cdnc_uart_hw_init(bas);  in cdnc_uart_bus_attach()
446 	WR4(bas, CDNC_UART_IEN_REG,  in cdnc_uart_bus_attach()
458 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_transmit()  local
463 	WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
466 		WR4(bas, CDNC_UART_FIFO, sc->sc_txbuf[i]);  in cdnc_uart_bus_transmit()
469 	WR4(bas, CDNC_UART_IEN_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_transmit()
480 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_setsig()  local
494 	modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG) &  in cdnc_uart_bus_setsig()
500 	WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_setsig()
509 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_receive()  local
516 	status = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_receive()
518 		WR4(bas, CDNC_UART_ISTAT_REG,  in cdnc_uart_bus_receive()
526 	while ((RD4(bas, CDNC_UART_CHAN_STAT_REG) &  in cdnc_uart_bus_receive()
528 		c = RD4(bas, CDNC_UART_FIFO) & 0xff;  in cdnc_uart_bus_receive()
535 			WR4(bas, CDNC_UART_ISTAT_REG, CDNC_UART_INT_FRAMING);  in cdnc_uart_bus_receive()
559 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ipend()  local
564 	istatus = RD4(bas, CDNC_UART_ISTAT_REG);  in cdnc_uart_bus_ipend()
567 	WR4(bas, CDNC_UART_ISTAT_REG, istatus &  in cdnc_uart_bus_ipend()
579 		WR4(bas, CDNC_UART_IDIS_REG, CDNC_UART_INT_TXEMPTY);  in cdnc_uart_bus_ipend()
593 		WR4(bas, CDNC_UART_MODEM_STAT_REG,  in cdnc_uart_bus_ipend()
615 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_getsig()  local
623 		modem_status = RD4(bas, CDNC_UART_MODEM_STAT_REG);  in cdnc_uart_bus_getsig()
641 	struct uart_bas *bas = &sc->sc_bas;  in cdnc_uart_bus_ioctl()  local
649 		uart_ctrl = RD4(bas, CDNC_UART_CTRL_REG);  in cdnc_uart_bus_ioctl()
657 		WR4(bas, CDNC_UART_CTRL_REG, uart_ctrl);  in cdnc_uart_bus_ioctl()
660 		modem_ctrl = RD4(bas, CDNC_UART_MODEM_CTRL_REG);  in cdnc_uart_bus_ioctl()
665 		WR4(bas, CDNC_UART_MODEM_CTRL_REG, modem_ctrl);  in cdnc_uart_bus_ioctl()