sys/arch/arm/ixp12x0/ixp12x0_comvar.h

   1 /*      $NetBSD: ixp12x0_comvar.h,v 1.5 2003/03/06 06:17:43 igy 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         struct device           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_ */