projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| ab720f1f WJ |
1 | /* |
| 2 | * Copyright (c) 1989, 1990, 1991, 1992 William F. Jolitz, TeleMuse | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This software is a component of "386BSD" developed by | |
| 16 | William F. Jolitz, TeleMuse. | |
| 17 | * 4. Neither the name of the developer nor the name "386BSD" | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ | |
| 22 | * AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS | |
| 23 | * SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT. | |
| 24 | * THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT | |
| 25 | * NOT MAKE USE THIS WORK. | |
| 26 | * | |
| 27 | * FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED | |
| 28 | * BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN | |
| 29 | * REFERENCES SUCH AS THE "PORTING UNIX TO THE 386" SERIES | |
| 30 | * (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING | |
| 31 | * JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND | |
| 32 | * LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE | |
| 33 | * ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS | |
| 34 | * OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992. | |
| 35 | * | |
| 36 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND | |
| 37 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 39 | * ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER BE LIABLE | |
| 40 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 41 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 42 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 43 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 44 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 45 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 46 | * SUCH DAMAGE. | |
| 47 | * | |
| 48 | */ | |
| 49 | ||
| 50 | /* | |
| 51 | * Interface to driver to obtain a block off the disk drive. | |
| 52 | */ | |
| 53 | #include "param.h" | |
| 54 | #include "saio.h" | |
| 55 | ||
| 56 | ||
| 57 | char *devname = "XX"; | |
| 58 | static ss = 1; | |
| 59 | struct iob iobuf; | |
| 60 | bread(bdev, off, addr, sz) | |
| 61 | char *addr; | |
| 62 | { | |
| 63 | ||
| 64 | /*printf("bread %d %d %x %d\n", bdev, off, addr, sz);*/ | |
| 65 | iobuf.i_dev = 0; | |
| 66 | iobuf.i_adapt = 0; | |
| 67 | iobuf.i_ctlr = 0; | |
| 68 | iobuf.i_part = 0; | |
| 69 | iobuf.i_unit = 0; | |
| 70 | iobuf.i_cc = sz; | |
| 71 | iobuf.i_bn = off; | |
| 72 | iobuf.i_ma = addr; | |
| 73 | /*io.i_boff= 0;*/ | |
| 74 | iobuf.i_flgs = F_FILE | F_READ; | |
| 75 | if(ss) { ss=0; xxopen(&iobuf); } | |
| 76 | xxstrategy(&iobuf, F_READ); | |
| 77 | scankbd(); | |
| 78 | return(0); | |
| 79 | } | |
| 80 |