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/*-
* Copyright (C) 2002-2004
* Hidetoshi Shimokawa. 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 Hidetoshi Shimokawa.
*
* 4. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* $Id: dcons.h,v 1.15 2003/10/23 15:05:31 simokawa Exp $
* $FreeBSD$
*/
#if defined(_KERNEL) || defined(_BOOT)
#define V volatile
#else
#define V
#endif
#define DCONS_NPORT 2
#define DCONS_CON 0
#define DCONS_GDB 1
struct dcons_buf {
#define DCONS_VERSION 2
V u_int32_t version;
V u_int32_t ooffset[DCONS_NPORT];
V u_int32_t ioffset[DCONS_NPORT];
V u_int32_t osize[DCONS_NPORT];
V u_int32_t isize[DCONS_NPORT];
#define DCONS_MAGIC 0x64636f6e /* "dcon" */
V u_int32_t magic;
#define DCONS_GEN_SHIFT (24)
#define DCONS_GEN_MASK (0xff)
#define DCONS_POS_MASK ((1<< DCONS_GEN_SHIFT) - 1)
V u_int32_t optr[DCONS_NPORT];
V u_int32_t iptr[DCONS_NPORT];
V char buf[0];
};
#define DCONS_CSR_VAL_VER 0x64636f /* "dco" */
#define DCONS_CSR_KEY_HI 0x3a
#define DCONS_CSR_KEY_LO 0x3b
#define DCONS_CSR_KEY_RESET_HI 0x3c
#define DCONS_CSR_KEY_RESET_LO 0x3d
#define DCONS_HEADER_SIZE sizeof(struct dcons_buf)
#define DCONS_MAKE_PTR(x) htonl(((x)->gen << DCONS_GEN_SHIFT) | (x)->pos)
#define DCONS_NEXT_GEN(x) (((x) + 1) & DCONS_GEN_MASK)
struct dcons_ch {
u_int32_t size;
u_int32_t gen;
u_int32_t pos;
#if defined(_KERNEL) || defined(_BOOT)
V u_int32_t *ptr;
V char *buf;
#else
off_t buf;
#endif
};
#define KEY_CTRLB 2 /* ^B */
#define KEY_CR 13 /* CR '\r' */
#define KEY_TILDE 126 /* ~ */
#define STATE0 0
#define STATE1 1
#define STATE2 2
#define STATE3 3
#if defined(_KERNEL) || defined(_BOOT)
struct dcons_softc {
struct dcons_ch o, i;
int brk_state;
#define DC_GDB 1
int flags;
void *tty;
};
int dcons_checkc(struct dcons_softc *);
int dcons_ischar(struct dcons_softc *);
void dcons_putc(struct dcons_softc *, int);
int dcons_load_buffer(struct dcons_buf *, int, struct dcons_softc *);
void dcons_init(struct dcons_buf *, int, struct dcons_softc *);
#endif
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