arm/at91/at91usartvar.h

1.7  riastrad /*      $NetBSD: at91usartvar.h,v 1.7 2015/04/14 20:32:35 riastradh Exp $	*/
1.2      matt
1.2      matt /*-
1.2      matt  * Copyright (c) 2007 Embedtronics Oy. All rights reserved.
1.2      matt  *
1.2      matt  * Redistribution and use in source and binary forms, with or without
1.2      matt  * modification, are permitted provided that the following conditions
1.2      matt  * are met:
1.2      matt  * 1. Redistributions of source code must retain the above copyright
1.2      matt  *    notice, this list of conditions and the following disclaimer.
1.2      matt  * 2. Redistributions in binary form must reproduce the above copyright
1.2      matt  *    notice, this list of conditions and the following disclaimer in the
1.2      matt  *    documentation and/or other materials provided with the distribution.
1.3       snj  *
1.2      matt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.2      matt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.2      matt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.2      matt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.2      matt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.2      matt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.2      matt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.2      matt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.2      matt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.2      matt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.2      matt  * SUCH DAMAGE.
1.2      matt  *
1.2      matt  */
1.2      matt
1.2      matt #ifndef _AT91USARTVAR_H_
1.2      matt #define _AT91USARTVAR_H_
1.2      matt
1.2      matt #include <sys/tty.h>
1.2      matt #include <arm/at91/at91pdcvar.h>
1.7  riastrad #ifdef RND_COM
1.7  riastrad #include <sys/rndsource.h>
1.7  riastrad #endif
1.2      matt
1.2      matt /* Hardware flag masks */
1.2      matt #define COM_HW_NOIEN		0x01
1.2      matt #define COM_HW_DEV_OK		0x20
1.2      matt #define COM_HW_CONSOLE		0x40
1.2      matt #define COM_HW_KGDB		0x80
1.2      matt
1.2      matt #define RX_TTY_BLOCKED		0x01
1.2      matt #define RX_TTY_OVERFLOWED	0x02
1.2      matt #define RX_IBUF_BLOCKED		0x04
1.2      matt #define RX_IBUF_OVERFLOWED	0x08
1.2      matt #define RX_ANY_BLOCK		0x0f
1.2      matt
1.2      matt #define AT91USART_RING_SIZE	MAX(PAGE_SIZE, 2048)
1.2      matt
1.2      matt struct at91usart_softc {
1.2      matt 	device_t		sc_dev;
1.2      matt 	bus_addr_t		sc_hwbase;
1.2      matt 	bus_space_tag_t		sc_iot;
1.2      matt 	bus_space_handle_t 	sc_ioh;
1.2      matt 	bus_dma_tag_t		sc_dmat;
1.2      matt 	int			sc_pid;
1.2      matt
1.2      matt 	/* hardware flow control callbacks: */
1.2      matt 	void			(*hwflow)(struct at91usart_softc *, int enabled);
1.2      matt 	void			(*start_tx)(struct at91usart_softc *sc);
1.2      matt 	void			(*stop_tx)(struct at91usart_softc *sc);
1.2      matt 	void			(*rx_started)(struct at91usart_softc *sc);
1.2      matt 	void			(*rx_stopped)(struct at91usart_softc *sc);
1.2      matt 	void			(*rx_rts_ctl)(struct at91usart_softc *sc, int enabled);
1.2      matt
1.2      matt 	at91pdc_fifo_t		sc_rx_fifo;
1.2      matt 	at91pdc_fifo_t		sc_tx_fifo;
1.2      matt
1.2      matt 	u_char			*sc_tba;
1.2      matt 	int			sc_tbc;
1.2      matt
1.2      matt 	void			*sc_si;
1.2      matt
1.2      matt 	struct tty		*sc_tty;
1.2      matt
1.2      matt 	/* status flags */
1.2      matt 	int			sc_hwflags, sc_swflags;
1.2      matt
1.2      matt 	volatile u_int		sc_rx_flags,
1.2      matt 				sc_rx_ready;
1.2      matt
1.2      matt 	volatile u_int		sc_csr, sc_brgr, sc_ier, sc_poll;
1.2      matt
1.2      matt 	/* power management hooks */
1.2      matt 	int			(*enable)(struct at91usart_softc *);
1.2      matt 	int			(*disable)(struct at91usart_softc *);
1.2      matt
1.2      matt 	int			enabled;
1.5       tls #ifdef RND_COM
1.4       tls 	krndsource_t  rnd_source;
1.2      matt #endif
1.2      matt };
1.2      matt
1.2      matt struct at91bus_attach_args;
1.2      matt void	at91usart_attach_subr(struct at91usart_softc *, struct at91bus_attach_args *);
1.6     skrll int	at91usart_cn_attach(bus_space_tag_t, bus_addr_t, bus_space_handle_t, uint32_t mstclk, int, tcflag_t);
1.2      matt
1.2      matt #endif /* _AT91USARTVAR_H_ */