sys/arch/mips/sibyte/dev/sbjcnvar.h

   1 /* $NetBSD: sbjcnvar.h,v 1.1 2002/03/05 23:46:42 simonb Exp $ */
   2
   3 /*
   4  * Copyright 2000, 2001
   5  * Broadcom Corporation. All rights reserved.
   6  *
   7  * This software is furnished under license and may be used and copied only
   8  * in accordance with the following terms and conditions.  Subject to these
   9  * conditions, you may download, copy, install, use, modify and distribute
  10  * modified or unmodified copies of this software in source and/or binary
  11  * form. No title or ownership is transferred hereby.
  12  *
  13  * 1) Any source code used, modified or distributed must reproduce and
  14  *    retain this copyright notice and list of conditions as they appear in
  15  *    the source file.
  16  *
  17  * 2) No right is granted to use any trade name, trademark, or logo of
  18  *    Broadcom Corporation.  The "Broadcom Corporation" name may not be
  19  *    used to endorse or promote products derived from this software
  20  *    without the prior written permission of Broadcom Corporation.
  21  *
  22  * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
  23  *    WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
  24  *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
  25  *    NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
  26  *    FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
  27  *    LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  30  *    BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31  *    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  32  *    OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 /* from: $NetBSD: comvar.h,v 1.32 2000/03/23 07:01:30 thorpej Exp */
  36
  37 /*
  38  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 3. All advertising materials mentioning features or use of this software
  49  *    must display the following acknowledgement:
  50  *      This product includes software developed by Christopher G. Demetriou
  51  *      for the NetBSD Project.
  52  * 4. The name of the author may not be used to endorse or promote products
  53  *    derived from this software without specific prior written permission
  54  *
  55  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  56  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  57  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  58  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  59  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  60  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  64  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  */
  66
  67 #include "rnd.h"
  68 #if NRND > 0 && defined(RND_SBJCN)
  69 #include <sys/rnd.h>
  70 #endif
  71
  72 #include <sys/callout.h>
  73
  74 #define SBJCN_CHAN(x)           ((minor(x) & 0x00001) >> 0)
  75 #define SBJCN_UNIT(x)           ((minor(x) & 0x7fffe) >> 1)
  76 #define SBJCN_DIALOUT(x)        ((minor(x) & 0x80000) != 0)
  77
  78 #define SBJCN_TOLERANCE 30      /* baud rate tolerance, in 0.1% units */
  79
  80 int     sbjcn_cnattach(u_long addr, int chan, int rate,
  81             tcflag_t cflag);
  82 #ifdef KGDB
  83 int     sbjcn_kgdb_attach(u_long addr, int chan, int rate,
  84             tcflag_t cflag);
  85 #endif
  86 int     sbjcn_is_console(u_long addr, int chan);
  87
  88 /* Hardware flag masks */
  89 #define SBJCN_HW_CONSOLE                0x01
  90 #define SBJCN_HW_KGDB                   0x02
  91 #define SBJCN_HW_DEV_OK                 0x04
  92
  93 /* Buffer size for character buffer */
  94 #define SBJCN_RING_SIZE         2048
  95
  96 struct sbjcn_channel {
  97         int             ch_num;
  98         struct sbjcn_softc *ch_sc;
  99         struct tty      *ch_tty;        /* tty struct */
 100         struct callout  ch_diag_callout; /* callout for diagnostic msgs */
 101         struct callout  ch_callout;     /* callout for channel processing */
 102
 103         volatile char   *ch_input_reg;  /* kseg1 addr of input reg */
 104         volatile char   *ch_output_reg; /* kseg1 addr of outpu reg */
 105         volatile char   *ch_control_reg;/* kseg1 addr of control reg */
 106
 107         volatile int    ch_waiting_input; /*  */
 108         volatile uint64_t ch_input_buf; /* up to 7 buffered bytes */
 109
 110         volatile char   *ch_base;       /* kseg1 addr of channel regs */
 111         volatile char   *ch_isr_base;   /* kseg1 addr of channel ISR */
 112         volatile char   *ch_imr_base;   /* kseg1 addr of channel IMR */
 113 #ifdef XXXCGDnotyet
 114         volatile char   *ch_inchg_base; /* kseg1 addr of channel inport-chg */
 115 #endif
 116
 117         u_int           ch_overflows;
 118         u_int           ch_floods;
 119         u_int           ch_errors;
 120
 121         u_int           ch_hwflags;
 122         u_int           ch_swflags;
 123
 124         u_int           ch_r_hiwat;
 125         u_int           ch_r_lowat;
 126
 127         /* receive ring buffer management */
 128         u_char *volatile ch_rbget;
 129         u_char *volatile ch_rbput;
 130         volatile u_int  ch_rbavail;
 131         u_char          *ch_rbuf;
 132         u_char          *ch_ebuf;
 133
 134         /* transmit buffer management */
 135         u_char          *ch_tba;
 136         u_int           ch_tbc;
 137         u_int           ch_heldtbc;
 138
 139         volatile u_int ch_rx_flags;
 140 #define RX_TTY_BLOCKED          0x01
 141 #define RX_TTY_OVERFLOWED       0x02
 142 #define RX_IBUF_BLOCKED         0x04
 143 #define RX_IBUF_OVERFLOWED      0x08
 144 #define RX_ANY_BLOCK            0x0f
 145         volatile u_int  ch_tx_busy;
 146         volatile u_int  ch_tx_done;
 147         volatile u_int  ch_tx_stopped;
 148         volatile u_int  ch_rx_ready;
 149
 150         volatile u_char ch_heldchange;
 151
 152         volatile u_int  ch_brc;
 153         volatile u_char ch_imr;
 154         volatile u_char ch_iports, ch_iports_delta;
 155         volatile u_char ch_oports, ch_oports_active;
 156         volatile u_char ch_mode1, ch_mode2;
 157
 158         u_char          ch_i_dcd, ch_i_cts, ch_i_dsr, ch_i_ri, ch_i_mask;
 159         u_char          ch_o_dtr, ch_o_rts, ch_o_mask;
 160
 161         u_char          ch_i_dcd_pin, ch_i_cts_pin, ch_i_dsr_pin, ch_i_ri_pin;
 162         u_char          ch_o_dtr_pin, ch_o_rts_pin;
 163 };
 164
 165 struct sbjcn_softc {
 166         struct device   sc_dev;         /* base device */
 167
 168         /* shared data structures */
 169         u_long          sc_addr;        /* phys addr of JTAG console bus_space */
 170
 171         struct sbjcn_channel sc_channels[1];
 172 };
 173
 174 /* Macros to clear/set/test flags. */
 175 #define SET(t, f)       (t) |= (f)
 176 #define CLR(t, f)       (t) &= ~(f)
 177 #define ISSET(t, f)     ((t) & (f))