diff options
Diffstat (limited to 'sys/dev/dcons/dcons.h')
| -rw-r--r-- | sys/dev/dcons/dcons.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/sys/dev/dcons/dcons.h b/sys/dev/dcons/dcons.h new file mode 100644 index 000000000000..daf9cb4e3b0e --- /dev/null +++ b/sys/dev/dcons/dcons.h @@ -0,0 +1,106 @@ +/*- + * 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_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 + +#if defined(_KERNEL) || defined(_BOOT) +struct dcons_softc { + struct dcons_ch o, i; + int brk_state; +#define DC_GDB 1 + int flags; + void *dev; +}; + +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 |