conf.c revision 1.20
1 /* $NetBSD: conf.c,v 1.20 2000/03/18 22:33:06 scw Exp $ */ 2 3 /*- 4 * Copyright (c) 1991 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)conf.c 7.9 (Berkeley) 5/28/91 36 */ 37 38 #include "opt_compat_svr4.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/buf.h> 43 #include <sys/ioctl.h> 44 #include <sys/tty.h> 45 #include <sys/conf.h> 46 #include <sys/vnode.h> 47 48 bdev_decl(sw); 49 #include "sd.h" 50 bdev_decl(sd); 51 #include "ccd.h" 52 bdev_decl(ccd); 53 #include "raid.h" 54 bdev_decl(raid); 55 #include "vnd.h" 56 bdev_decl(vnd); 57 #include "st.h" 58 bdev_decl(st); 59 #include "cd.h" 60 bdev_decl(cd); 61 #include "md.h" 62 bdev_decl(md); 63 64 struct bdevsw bdevsw[] = 65 { 66 bdev_notdef(), /* 0 */ 67 bdev_notdef(), /* 1 */ 68 bdev_notdef(), /* 2 */ 69 bdev_swap_init(1,sw), /* 3: swap pseudo-device */ 70 bdev_disk_init(NSD,sd), /* 4: SCSI disk */ 71 bdev_disk_init(NCCD,ccd), /* 5: concatenated disk driver */ 72 bdev_disk_init(NVND,vnd), /* 6: vnode disk driver */ 73 bdev_tape_init(NST,st), /* 7: SCSI tape */ 74 bdev_disk_init(NCD,cd), /* 8: SCSI CD-ROM */ 75 bdev_disk_init(NMD,md), /* 9: memory disk - for install tape */ 76 bdev_lkm_dummy(), /* 10 */ 77 bdev_lkm_dummy(), /* 11 */ 78 bdev_lkm_dummy(), /* 12 */ 79 bdev_lkm_dummy(), /* 13 */ 80 bdev_lkm_dummy(), /* 14 */ 81 bdev_lkm_dummy(), /* 15 */ 82 bdev_disk_init(NRAID,raid), /* 16: RAIDframe disk driver */ 83 }; 84 85 int nblkdev = sizeof (bdevsw) / sizeof (bdevsw[0]); 86 87 cdev_decl(cn); 88 cdev_decl(ctty); 89 #define mmread mmrw 90 #define mmwrite mmrw 91 cdev_decl(mm); 92 cdev_decl(sw); 93 94 #include "pty.h" 95 #define ptstty ptytty 96 #define ptsioctl ptyioctl 97 cdev_decl(pts); 98 #define ptctty ptytty 99 #define ptcioctl ptyioctl 100 cdev_decl(ptc); 101 102 cdev_decl(log); 103 cdev_decl(fd); 104 105 #include "zstty.h" 106 cdev_decl(zs); 107 108 #include "clmpcc.h" 109 cdev_decl(clmpcc); 110 111 cdev_decl(cd); 112 #include "ch.h" 113 cdev_decl(ch); 114 cdev_decl(sd); 115 #include "ss.h" 116 cdev_decl(ss); 117 cdev_decl(st); 118 #include "uk.h" 119 cdev_decl(uk); 120 121 cdev_decl(md); 122 cdev_decl(vnd); 123 cdev_decl(ccd); 124 cdev_decl(raid); 125 126 dev_decl(filedesc,open); 127 128 #include "bpfilter.h" 129 cdev_decl(bpf); 130 131 #include "tun.h" 132 cdev_decl(tun); 133 134 #include "lpt.h" 135 cdev_decl(lpt); 136 /* open, close, write, ioctl */ 137 #define cdev_lpt_init(c,n) { \ 138 dev_init(c,n,open), dev_init(c,n,close), (dev_type_read((*)))enodev, \ 139 dev_init(c,n,write), dev_init(c,n,ioctl), (dev_type_stop((*)))enodev, \ 140 0, seltrue, (dev_type_mmap((*))) enodev, 0} 141 142 #include "ipfilter.h" 143 #include "rnd.h" 144 145 #include "scsibus.h" 146 cdev_decl(scsibus); 147 148 struct cdevsw cdevsw[] = 149 { 150 cdev_cn_init(1,cn), /* 0: virtual console */ 151 cdev_ctty_init(1,ctty), /* 1: controlling terminal */ 152 cdev_mm_init(1,mm), /* 2: /dev/{null,mem,kmem,...} */ 153 cdev_swap_init(1,sw), /* 3: /dev/drum (swap pseudo-device) */ 154 cdev_tty_init(NPTY,pts), /* 4: pseudo-tty slave */ 155 cdev_ptc_init(NPTY,ptc), /* 5: pseudo-tty master */ 156 cdev_log_init(1,log), /* 6: /dev/klog */ 157 cdev_ipf_init(NIPFILTER,ipl), /* 7: ip-filter device */ 158 cdev_disk_init(NSD,sd), /* 8: SCSI disk */ 159 cdev_notdef(), /* 9 */ 160 cdev_notdef(), /* 10 */ 161 cdev_lpt_init(NLPT,lpt), /* 11: parallel interface */ 162 cdev_tty_init(NZSTTY,zs), /* 12: SCC serial ports */ 163 cdev_tty_init(NCLMPCC,clmpcc), /* 13: CD2401 serial ports */ 164 cdev_notdef(), /* 14 */ 165 cdev_notdef(), /* 15 */ 166 cdev_notdef(), /* 16 */ 167 cdev_disk_init(NCCD,ccd), /* 17: concatenated disk driver */ 168 cdev_disk_init(NCD,cd), /* 18: SCSI CD-ROM */ 169 cdev_disk_init(NVND,vnd), /* 19: vnode disk */ 170 cdev_tape_init(NST,st), /* 20: SCSI tape */ 171 cdev_fd_init(1,filedesc), /* 21: file descriptor pseudo-dev */ 172 cdev_bpftun_init(NBPFILTER,bpf),/* 22: berkeley packet filter */ 173 cdev_bpftun_init(NTUN,tun), /* 23: network tunnel */ 174 cdev_lkm_init(NLKM,lkm), /* 24: loadable module driver */ 175 cdev_lkm_dummy(), /* 25 */ 176 cdev_lkm_dummy(), /* 26 */ 177 cdev_lkm_dummy(), /* 27 */ 178 cdev_lkm_dummy(), /* 28 */ 179 cdev_lkm_dummy(), /* 29 */ 180 cdev_lkm_dummy(), /* 30 */ 181 cdev_ch_init(NCH,ch), /* 31: SCSI autochanger */ 182 cdev_disk_init(NMD,md), /* 32: memory disk driver */ 183 cdev_scanner_init(NSS,ss), /* 33: SCSI scanner */ 184 cdev_uk_init(NUK,uk), /* 34: SCSI unknown */ 185 cdev_rnd_init(NRND,rnd), /* 35: random source pseudo-device */ 186 cdev_scsibus_init(NSCSIBUS,scsibus), /* 36: SCSI bus */ 187 cdev_disk_init(NRAID,raid), /* 37: RAIDframe disk driver */ 188 cdev_svr4_net_init(NSVR4_NET,svr4_net) /* 38: svr4 net pseudo-device */ 189 }; 190 191 int nchrdev = sizeof (cdevsw) / sizeof (cdevsw[0]); 192 193 int mem_no = 2; /* major device number of memory special file */ 194 195 /* 196 * Swapdev is a fake device implemented 197 * in sw.c used only internally to get to swstrategy. 198 * It cannot be provided to the users, because the 199 * swstrategy routine munches the b_dev and b_blkno entries 200 * before calling the appropriate driver. This would horribly 201 * confuse, e.g. the hashing routines. Instead, /dev/drum is 202 * provided as a character (raw) device. 203 */ 204 dev_t swapdev = makedev(3, 0); 205 206 /* 207 * Returns true if dev is /dev/mem or /dev/kmem. 208 */ 209 int 210 iskmemdev(dev) 211 dev_t dev; 212 { 213 214 return (major(dev) == mem_no && minor(dev) < 2); 215 } 216 217 /* 218 * Returns true if dev is /dev/zero. 219 */ 220 int 221 iszerodev(dev) 222 dev_t dev; 223 { 224 225 return (major(dev) == mem_no && minor(dev) == 12); 226 } 227 228 static int chrtoblktbl[] = { 229 /* XXXX This needs to be dynamic for LKMs. */ 230 /*VCHR*/ /*VBLK*/ 231 /* 0 */ NODEV, 232 /* 1 */ NODEV, 233 /* 2 */ NODEV, 234 /* 3 */ 3, /* sw */ 235 /* 4 */ NODEV, 236 /* 5 */ NODEV, 237 /* 6 */ NODEV, 238 /* 7 */ NODEV, 239 /* 8 */ 4, /* sd */ 240 /* 9 */ NODEV, 241 /* 10 */ NODEV, 242 /* 11 */ NODEV, 243 /* 12 */ NODEV, 244 /* 13 */ NODEV, 245 /* 14 */ NODEV, 246 /* 15 */ NODEV, 247 /* 16 */ NODEV, 248 /* 17 */ 5, /* ccd */ 249 /* 18 */ 8, /* cd */ 250 /* 19 */ 6, /* vnd */ 251 /* 20 */ 7, /* st */ 252 /* 21 */ NODEV, 253 /* 22 */ NODEV, 254 /* 23 */ NODEV, 255 /* 24 */ NODEV, 256 /* 25 */ NODEV, 257 /* 26 */ NODEV, 258 /* 27 */ NODEV, 259 /* 28 */ NODEV, 260 /* 29 */ NODEV, 261 /* 30 */ NODEV, 262 /* 31 */ NODEV, 263 /* 32 */ 9, /* md */ 264 /* 33 */ NODEV, 265 /* 34 */ NODEV, 266 /* 35 */ NODEV, 267 /* 36 */ NODEV, 268 /* 37 */ 16, /* RAIDframe */ 269 }; 270 271 /* 272 * Convert a character device number to a block device number. 273 */ 274 dev_t 275 chrtoblk(dev) 276 dev_t dev; 277 { 278 int blkmaj; 279 280 if (major(dev) >= nchrdev 281 || major(dev) >= (sizeof(chrtoblktbl) / sizeof(chrtoblktbl[0]))) 282 return (NODEV); 283 blkmaj = chrtoblktbl[major(dev)]; 284 if (blkmaj == NODEV) 285 return (NODEV); 286 return (makedev(blkmaj, minor(dev))); 287 } 288 289 /* 290 * This entire table could be autoconfig()ed but that would mean that 291 * the kernel's idea of the console would be out of sync with that of 292 * the standalone boot. I think it best that they both use the same 293 * known algorithm unless we see a pressing need otherwise. 294 */ 295 #include <dev/cons.h> 296 297 #define zsc_pcccnpollc nullcnpollc 298 #include "zsc_pcc.h" 299 cons_decl(zsc_pcc); 300 301 #define clmpcccnpollc nullcnpollc 302 #include "clmpcc_pcctwo.h" 303 cons_decl(clmpcc); 304 305 306 struct consdev constab[] = { 307 #if NZSC_PCC > 0 308 cons_init(zsc_pcc), 309 #endif 310 #if NCLMPCC_PCCTWO > 0 311 cons_init(clmpcc), 312 #endif 313 { 0 }, 314 }; 315
Indexes created Tue Sep 30 07:10:03 GMT 2025