19b3bba3e5
- Force dcons to be the high-level console after dcons_crom has been attached. - Add a tunable to be the high-level console.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
|
|
* Copyright (C) 2002
|
|
* 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 $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifdef _KERNEL
|
|
#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_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;
|
|
#ifdef _KERNEL
|
|
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
|
|
|
|
#ifdef _KERNEL
|
|
struct dcons_global {
|
|
struct consdev *cdev;
|
|
struct dcons_buf *buf;
|
|
size_t size;
|
|
bus_dma_tag_t dma_tag;
|
|
bus_dmamap_t dma_map;
|
|
};
|
|
extern struct dcons_global *dcons_conf;
|
|
#endif
|