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      1 /*      $NetBSD: sa11x0_comvar.h,v 1.6 2009/05/29 14:15:44 rjs Exp $        */
      2 
      3 /*-
      4  * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by IWAMOTO Toshihiro and Ichiro FUKUHARA.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef _ARM_SA11X0_COMVAR_H_
     32 #define _ARM_SA11X0_COMVAR_H_
     33 
     34 /* Hardware flag masks */
     35 #define COM_HW_NOIEN		0x01
     36 #define COM_HW_DEV_OK		0x20
     37 #define COM_HW_CONSOLE		0x40
     38 #define COM_HW_KGDB		0x80
     39 
     40 #define RX_TTY_BLOCKED		0x01
     41 #define RX_TTY_OVERFLOWED	0x02
     42 #define RX_IBUF_BLOCKED		0x04
     43 #define RX_IBUF_OVERFLOWED	0x08
     44 #define RX_ANY_BLOCK		0x0f
     45 
     46 #define SACOM_RING_SIZE		2048
     47 
     48 struct sacom_softc {
     49 	device_t		sc_dev;
     50 	bus_addr_t		sc_baseaddr;
     51 	bus_space_tag_t		sc_iot;
     52 	bus_space_handle_t 	sc_ioh;
     53 
     54 	void			*sc_si;
     55 	struct tty		*sc_tty;
     56 
     57 
     58 	u_char			*sc_rbuf, *sc_ebuf;
     59 
     60  	u_char			*sc_tba;
     61  	u_int			sc_tbc, sc_heldtbc;
     62 
     63 	u_char			*volatile sc_rbget,
     64 				*volatile sc_rbput;
     65  	volatile u_int		sc_rbavail;
     66 
     67 	/* status flags */
     68 	int			sc_hwflags, sc_swflags;
     69 
     70 	volatile u_int		sc_rx_flags,
     71 				sc_tx_busy,
     72 				sc_tx_done,
     73 				sc_tx_stopped,
     74 				sc_st_check,
     75 				sc_rx_ready;
     76 	volatile int		sc_heldchange;
     77 
     78 	/* control registers */
     79 	u_int			sc_cr0, sc_cr3;
     80 	u_int			sc_speed;
     81 
     82 	/* power management hooks */
     83 	int			(*enable)(struct sacom_softc *);
     84 	int			(*disable)(struct sacom_softc *);
     85 
     86 	int			enabled;
     87 };
     88 
     89 #endif /* _ARM_SA11X0_COMVAR_H_ */
     90