text: /* $NetBSD: sbjcnvar.h,v 1.1 2002/03/05 23:46:42 simonb Exp $ */
  
  /*
   * Copyright 2000, 2001
   * Broadcom Corporation. All rights reserved.
   *
   * This software is furnished under license and may be used and copied only
   * in accordance with the following terms and conditions.  Subject to these
   * conditions, you may download, copy, install, use, modify and distribute
   * modified or unmodified copies of this software in source and/or binary
   * form. No title or ownership is transferred hereby.
   *
   * 1) Any source code used, modified or distributed must reproduce and
   *    retain this copyright notice and list of conditions as they appear in
   *    the source file.
   *
   * 2) No right is granted to use any trade name, trademark, or logo of
   *    Broadcom Corporation. Neither the "Broadcom Corporation" name nor any
   *    trademark or logo of Broadcom Corporation may be used to endorse or
   *    promote products derived from this software without the prior written
   *    permission of Broadcom Corporation.
   *
   * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
   *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
   *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
   *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
   *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
   *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
   *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /* from: $NetBSD: comvar.h,v 1.32 2000/03/23 07:01:30 thorpej Exp */
  
  /*
   * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *      This product includes software developed by Christopher G. Demetriou
   *	for the NetBSD Project.
   * 4. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "rnd.h"
  #if NRND > 0 && defined(RND_SBJCN)
  #include <sys/rnd.h>
  #endif
  
  #include <sys/callout.h>
  
  #define	SBJCN_CHAN(x)		((minor(x) & 0x00001) >> 0)
  #define	SBJCN_UNIT(x)		((minor(x) & 0x7fffe) >> 1)
  #define	SBJCN_DIALOUT(x)	((minor(x) & 0x80000) != 0)
  
  #define	SBJCN_TOLERANCE	30	/* baud rate tolerance, in 0.1% units */
  
  int	sbjcn_cnattach(u_long addr, int chan, int rate,
  	    tcflag_t cflag);
  #ifdef KGDB
  int	sbjcn_kgdb_attach(u_long addr, int chan, int rate,
  	    tcflag_t cflag);
  #endif
  int	sbjcn_is_console(u_long addr, int chan);
  
  /* Hardware flag masks */
  #define	SBJCN_HW_CONSOLE		0x01
  #define	SBJCN_HW_KGDB			0x02
  #define	SBJCN_HW_DEV_OK			0x04
  
  /* Buffer size for character buffer */
  #define	SBJCN_RING_SIZE		2048
  
  struct sbjcn_channel {
  	int		ch_num;
  	struct sbjcn_softc *ch_sc;
  	struct tty	*ch_tty;	/* tty struct */
  	struct callout	ch_diag_callout; /* callout for diagnostic msgs */
  	struct callout	ch_callout;	/* callout for channel processing */
  
  	volatile char	*ch_input_reg;	/* kseg1 addr of input reg */
  	volatile char	*ch_output_reg;	/* kseg1 addr of outpu reg */
  	volatile char	*ch_control_reg;/* kseg1 addr of control reg */
  
  	volatile int	ch_waiting_input; /*  */
  	volatile uint64_t ch_input_buf; /* up to 7 buffered bytes */
  
  	volatile char	*ch_base;	/* kseg1 addr of channel regs */
  	volatile char	*ch_isr_base;	/* kseg1 addr of channel ISR */
  	volatile char	*ch_imr_base;	/* kseg1 addr of channel IMR */
  #ifdef XXXCGDnotyet
  	volatile char	*ch_inchg_base;	/* kseg1 addr of channel inport-chg */
  #endif
  
  	u_int		ch_overflows;
  	u_int		ch_floods;
  	u_int		ch_errors;
  
  	u_int		ch_hwflags;
  	u_int		ch_swflags;
  
  	u_int		ch_r_hiwat;
  	u_int		ch_r_lowat;
  
  	/* receive ring buffer management */
  	u_char *volatile ch_rbget;
  	u_char *volatile ch_rbput;
   	volatile u_int	ch_rbavail;
  	u_char		*ch_rbuf;
  	u_char		*ch_ebuf;
  
  	/* transmit buffer management */
  	u_char		*ch_tba;
  	u_int		ch_tbc;
  	u_int		ch_heldtbc;
  
  	volatile u_int ch_rx_flags;
  #define	RX_TTY_BLOCKED		0x01
  #define	RX_TTY_OVERFLOWED	0x02
  #define	RX_IBUF_BLOCKED		0x04
  #define	RX_IBUF_OVERFLOWED	0x08
  #define	RX_ANY_BLOCK		0x0f
  	volatile u_int	ch_tx_busy;
  	volatile u_int	ch_tx_done;
  	volatile u_int	ch_tx_stopped;
  	volatile u_int	ch_rx_ready;
  
  	volatile u_char ch_heldchange;
  
  	volatile u_int	ch_brc;
  	volatile u_char	ch_imr;
  	volatile u_char	ch_iports, ch_iports_delta;
  	volatile u_char	ch_oports, ch_oports_active;
  	volatile u_char	ch_mode1, ch_mode2;
  
  	u_char		ch_i_dcd, ch_i_cts, ch_i_dsr, ch_i_ri, ch_i_mask;
  	u_char		ch_o_dtr, ch_o_rts, ch_o_mask;
  
  	u_char		ch_i_dcd_pin, ch_i_cts_pin, ch_i_dsr_pin, ch_i_ri_pin;
  	u_char		ch_o_dtr_pin, ch_o_rts_pin;
  };
  
  struct sbjcn_softc {
  	struct device	sc_dev;		/* base device */
  
  	/* shared data structures */
  	u_long		sc_addr;	/* phys addr of JTAG console bus_space */
  
  	struct sbjcn_channel sc_channels[1];
  };
  
  /* Macros to clear/set/test flags. */
  #define	SET(t, f)	(t) |= (f)
  #define	CLR(t, f)	(t) &= ~(f)
  #define	ISSET(t, f)	((t) & (f))
  