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      1 /*      $NetBSD: ixp12x0_comvar.h,v 1.7 2012/10/27 17:17:39 chs Exp $        */
      2 /*-
      3  * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by IWAMOTO Toshihiro and Ichiro FUKUHARA.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef _IXP12X0_COMVAR_H_
     31 #define _IXP12X0_COMVAR_H_
     32 
     33 /* Hardware flag masks */
     34 #define COM_HW_NOIEN		0x01
     35 #define COM_HW_DEV_OK		0x20
     36 #define COM_HW_CONSOLE		0x40
     37 #define COM_HW_KGDB		0x80
     38 
     39 #define RX_TTY_BLOCKED		0x01
     40 #define RX_TTY_OVERFLOWED	0x02
     41 #define RX_IBUF_BLOCKED		0x04
     42 #define RX_IBUF_OVERFLOWED	0x08
     43 #define RX_ANY_BLOCK		0x0f
     44 
     45 #define IXPCOM_RING_SIZE	2048
     46 
     47 struct ixpcom_softc {
     48 	device_t		sc_dev;
     49 	bus_addr_t		sc_baseaddr;
     50 	bus_space_tag_t		sc_iot;
     51 	bus_space_handle_t 	sc_ioh;
     52 
     53 	void			*sc_si;
     54 
     55 	struct tty		*sc_tty;
     56 
     57 	u_char			*sc_rbuf, *sc_ebuf;
     58 
     59  	u_char			*sc_tba;
     60  	u_int			sc_tbc, sc_heldtbc;
     61 
     62 	u_char			*volatile sc_rbget,
     63 				*volatile sc_rbput;
     64  	volatile u_int		sc_rbavail;
     65 
     66 	/* status flags */
     67 	int			sc_hwflags, sc_swflags;
     68 
     69 	volatile u_int		sc_rx_flags,
     70 				sc_tx_busy,
     71 				sc_tx_done,
     72 				sc_tx_stopped,
     73 				sc_st_check,
     74 				sc_rx_ready;
     75 	volatile int		sc_heldchange;
     76 
     77 	/* control registers */
     78 	u_int			sc_xie;
     79 	u_int			sc_rie;
     80 	u_int			sc_speed;
     81 
     82 	/* power management hooks */
     83 	int			(*enable)(struct ixpcom_softc *);
     84 	int			(*disable)(struct ixpcom_softc *);
     85 
     86 	int			enabled;
     87 };
     88 
     89 extern struct ixpcom_softc* ixpcom_sc;
     90 
     91 void	ixpcom_attach_subr(struct ixpcom_softc *);
     92 
     93 int	ixpcomintr(void* arg);
     94 int	ixpcomcnattach(bus_space_tag_t, bus_addr_t, bus_space_handle_t,
     95 		       int, tcflag_t);
     96 
     97 #endif /* _IXP12X0_COMVAR_H_ */
     98