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111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (C) 2002-2004
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* Hidetoshi Shimokawa. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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*
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* This product includes software developed by Hidetoshi Shimokawa.
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*
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* 4. Neither the name of the author nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: dcons.h,v 1.15 2003/10/23 15:05:31 simokawa Exp $
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*/
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#if defined(_KERNEL) || defined(_BOOT)
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#define V volatile
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#else
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#define V
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#endif
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#define DCONS_NPORT 2
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#define DCONS_CON 0
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#define DCONS_GDB 1
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struct dcons_buf {
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#define DCONS_VERSION 2
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V u_int32_t version;
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V u_int32_t ooffset[DCONS_NPORT];
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V u_int32_t ioffset[DCONS_NPORT];
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V u_int32_t osize[DCONS_NPORT];
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V u_int32_t isize[DCONS_NPORT];
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#define DCONS_MAGIC 0x64636f6e /* "dcon" */
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V u_int32_t magic;
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#define DCONS_GEN_SHIFT (24)
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#define DCONS_GEN_MASK (0xff)
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#define DCONS_POS_MASK ((1<< DCONS_GEN_SHIFT) - 1)
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V u_int32_t optr[DCONS_NPORT];
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V u_int32_t iptr[DCONS_NPORT];
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V char buf[0];
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};
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#define DCONS_CSR_VAL_VER 0x64636f /* "dco" */
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#define DCONS_CSR_KEY_HI 0x3a
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#define DCONS_CSR_KEY_LO 0x3b
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#define DCONS_CSR_KEY_RESET_HI 0x3c
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#define DCONS_CSR_KEY_RESET_LO 0x3d
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#define DCONS_HEADER_SIZE sizeof(struct dcons_buf)
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#define DCONS_MAKE_PTR(x) htonl(((x)->gen << DCONS_GEN_SHIFT) | (x)->pos)
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#define DCONS_NEXT_GEN(x) (((x) + 1) & DCONS_GEN_MASK)
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struct dcons_ch {
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u_int32_t size;
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u_int32_t gen;
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u_int32_t pos;
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#if defined(_KERNEL) || defined(_BOOT)
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V u_int32_t *ptr;
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V char *buf;
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#else
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off_t buf;
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#endif
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};
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#define KEY_CTRLB 2 /* ^B */
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#define KEY_CR 13 /* CR '\r' */
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#define KEY_TILDE 126 /* ~ */
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#define STATE0 0
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#define STATE1 1
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#define STATE2 2
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#define STATE3 3
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#if defined(_KERNEL) || defined(_BOOT)
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struct dcons_softc {
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struct dcons_ch o, i;
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int brk_state;
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#define DC_GDB 1
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int flags;
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void *tty;
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};
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int dcons_checkc(struct dcons_softc *);
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int dcons_ischar(struct dcons_softc *);
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void dcons_putc(struct dcons_softc *, int);
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int dcons_load_buffer(struct dcons_buf *, int, struct dcons_softc *);
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void dcons_init(struct dcons_buf *, int, struct dcons_softc *);
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#endif
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