/* * Copyright (c) 1992 OMRON Corporation. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * OMRON Corporation. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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. * * @(#)conf.c 8.1 (Berkeley) 6/10/93 */ #include <luna68k/stand/saio.h> devread(io) register struct iob *io; { int cc; io->i_flgs |= F_RDDATA; io->i_error = 0; cc = (*devsw[io->i_dev].dv_strategy)(io, READ); io->i_flgs &= ~F_TYPEMASK; return (cc); } devwrite(io) register struct iob *io; { int cc; io->i_flgs |= F_WRDATA; io->i_error = 0; cc = (*devsw[io->i_dev].dv_strategy)(io, WRITE); io->i_flgs &= ~F_TYPEMASK; return (cc); } devopen(io) register struct iob *io; { (*devsw[io->i_dev].dv_open)(io); } devclose(io) register struct iob *io; { (*devsw[io->i_dev].dv_close)(io); } devioctl(io, cmd, arg) register struct iob *io; int cmd; caddr_t arg; { return ((*devsw[io->i_dev].dv_ioctl)(io, cmd, arg)); } /*ARGSUSED*/ nullsys(io) struct iob *io; { ; } /*ARGSUSED*/ nullioctl(io, cmd, arg) struct iob *io; int cmd; caddr_t arg; { return (ECMD); } int nullsys(), nullioctl(); int sdstrategy(), sdopen(), sdioctl(); struct devsw devsw[] = { { "sd", sdstrategy, sdopen, nullsys, nullioctl }, { 0, 0, 0, 0, 0 }, }; dev_t make_device(str) char *str; { char *cp; struct devsw *dp; int major, unit, part; /* * parse path strings */ /* find end of dev type name */ for (cp = str; *cp && *cp != '('; cp++) ; if (*cp != '(') { return (-1); } /* compare dev type name */ *cp = '\0'; for (dp = devsw; dp->dv_name; dp++) if (!strcmp(str, dp->dv_name)) break; *cp++ = '('; if (dp->dv_name == NULL) { return (-1); } major = dp - devsw; /* get unit number */ unit = *cp++ - '0'; if (*cp >= '0' && *cp <= '9') unit = unit * 10 + *cp++ - '0'; if (unit < 0 || unit > 63) { return (-1); } /* get partition offset */ if (*cp++ != ',') { return (-1); } part = *cp - '0'; /* check out end of dev spec */ for (;;) { if (*cp == ')') break; if (*cp++) continue; return (-1); } return(major << 8 | unit << 3 | part); }