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ixp12x0_comvar.h revision 1.2 
      1 /*      $NetBSD: ixp12x0_comvar.h,v 1.2 2002/07/20 03:09:04 ichiro 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  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *      This product includes software developed by the NetBSD
     19  *      Foundation, Inc. and its contributors.
     20  * 4. Neither the name of The NetBSD Foundation nor the names of its
     21  *    contributors may be used to endorse or promote products derived
     22  *    from this software without specific prior written permission.
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  */
     36 
     37 #ifndef _IXP12X0_COMVAR_H_
     38 #define _IXP12X0_COMVAR_H_
     39 
     40 /* Hardware flag masks */
     41 #define COM_HW_NOIEN		0x01
     42 #define COM_HW_DEV_OK		0x20
     43 #define COM_HW_CONSOLE		0x40
     44 #define COM_HW_KGDB		0x80
     45 
     46 #define RX_TTY_BLOCKED		0x01
     47 #define RX_TTY_OVERFLOWED	0x02
     48 #define RX_IBUF_BLOCKED		0x04
     49 #define RX_IBUF_OVERFLOWED	0x08
     50 #define RX_ANY_BLOCK		0x0f
     51 
     52 #define IXPCOM_RING_SIZE	2048
     53 
     54 struct ixpcom_softc {
     55 	struct device		sc_dev;
     56 	bus_addr_t		sc_baseaddr;
     57 	bus_space_tag_t		sc_iot;
     58 	bus_space_handle_t 	sc_ioh;
     59 
     60 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
     61 	void			*sc_si;
     62 #endif
     63 	struct tty		*sc_tty;
     64 
     65 
     66 	u_char			*sc_rbuf, *sc_ebuf;
     67 
     68  	u_char			*sc_tba;
     69  	u_int			sc_tbc, sc_heldtbc;
     70 
     71 	u_char			*volatile sc_rbget,
     72 				*volatile sc_rbput;
     73  	volatile u_int		sc_rbavail;
     74 
     75 	/* status flags */
     76 	int			sc_hwflags, sc_swflags;
     77 
     78 	volatile u_int		sc_rx_flags,
     79 				sc_tx_busy,
     80 				sc_tx_done,
     81 				sc_tx_stopped,
     82 				sc_st_check,
     83 				sc_rx_ready;
     84 	volatile int		sc_heldchange;
     85 
     86 	/* control registers */
     87 	u_int			sc_xie;
     88 	u_int			sc_rie;
     89 	u_int			sc_speed;
     90 
     91 	/* power management hooks */
     92 	int			(*enable)(struct ixpcom_softc *);
     93 	int			(*disable)(struct ixpcom_softc *);
     94 
     95 	int			enabled;
     96 };
     97 
     98 extern struct bus_space ixpcom_bs_tag;
     99 
    100 void	ixpcom_attach_subr(struct ixpcom_softc *);
    101 
    102 int	ixpcomintr(void* arg);
    103 int	ixpcomcnattach(bus_space_tag_t, bus_addr_t, int, tcflag_t);
    104 
    105 #endif /* _IXP12X0_COMVAR_H_ */
    106