Annotation of sys/arch/alpha/alpha/conf.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: conf.c,v 1.55 2007/06/20 18:28:56 miod Exp $ */
! 2: /* $NetBSD: conf.c,v 1.16 1996/10/18 21:26:57 cgd Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1991 The Regents of the University of California.
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)conf.c 7.9 (Berkeley) 5/28/91
! 33: */
! 34:
! 35: #include <sys/param.h>
! 36: #include <sys/systm.h>
! 37: #include <sys/buf.h>
! 38: #include <sys/ioctl.h>
! 39: #include <sys/tty.h>
! 40: #include <sys/conf.h>
! 41: #include <sys/vnode.h>
! 42:
! 43: #include "inet.h"
! 44:
! 45: #include "wd.h"
! 46: bdev_decl(wd);
! 47: #include "fd.h"
! 48: bdev_decl(fd);
! 49: #include "st.h"
! 50: #include "cd.h"
! 51: #include "sd.h"
! 52: #include "ss.h"
! 53: #include "uk.h"
! 54: #include "vnd.h"
! 55: #include "raid.h"
! 56: #include "ccd.h"
! 57: #include "rd.h"
! 58: #include "bktr.h"
! 59: #include "radio.h"
! 60:
! 61: struct bdevsw bdevsw[] =
! 62: {
! 63: bdev_disk_init(NWD,wd), /* 0: ST506/ESDI/IDE disk */
! 64: bdev_swap_init(1,sw), /* 1: swap pseudo-device */
! 65: bdev_tape_init(NST,st), /* 2: SCSI tape */
! 66: bdev_disk_init(NCD,cd), /* 3: SCSI CD-ROM */
! 67: bdev_disk_init(NFD,fd), /* 4: Floppy disk */
! 68: bdev_notdef(), /* 5 */
! 69: bdev_disk_init(NRD,rd), /* 6: ram disk driver */
! 70: bdev_disk_init(NCCD,ccd), /* 7: concatenated disk driver */
! 71: bdev_disk_init(NSD,sd), /* 8: SCSI disk */
! 72: bdev_disk_init(NVND,vnd), /* 9: vnode disk driver */
! 73: bdev_lkm_dummy(), /* 10 */
! 74: bdev_lkm_dummy(), /* 11 */
! 75: bdev_lkm_dummy(), /* 12 */
! 76: bdev_lkm_dummy(), /* 13 */
! 77: bdev_lkm_dummy(), /* 14 */
! 78: bdev_lkm_dummy(), /* 15 */
! 79: bdev_disk_init(NRAID,raid), /* 16 */
! 80: };
! 81: int nblkdev = sizeof (bdevsw) / sizeof (bdevsw[0]);
! 82:
! 83: #define mmread mmrw
! 84: #define mmwrite mmrw
! 85: cdev_decl(mm);
! 86: #include "pty.h"
! 87: #include "tun.h"
! 88: #include "bpfilter.h"
! 89: #include "iop.h"
! 90: #include "ch.h"
! 91: #include "scc.h"
! 92: cdev_decl(scc);
! 93: #include "audio.h"
! 94: #include "com.h"
! 95: cdev_decl(com);
! 96: #include "wsdisplay.h"
! 97: #include "wskbd.h"
! 98: #include "wsmouse.h"
! 99: #include "wsmux.h"
! 100: #include "midi.h"
! 101: cdev_decl(midi);
! 102: #include "sequencer.h"
! 103: cdev_decl(music);
! 104:
! 105: #include "spkr.h"
! 106: cdev_decl(spkr);
! 107:
! 108: #include "bio.h"
! 109: #include "lpt.h"
! 110: cdev_decl(lpt);
! 111: cdev_decl(prom); /* XXX XXX XXX */
! 112: cdev_decl(wd);
! 113: cdev_decl(fd);
! 114: #include "cy.h"
! 115: cdev_decl(cy);
! 116: #ifdef XFS
! 117: #include <xfs/nxfs.h>
! 118: cdev_decl(xfs_dev);
! 119: #endif
! 120: #include "ksyms.h"
! 121:
! 122: /* USB Devices */
! 123: #include "usb.h"
! 124: #include "uhid.h"
! 125: #include "ugen.h"
! 126: #include "ulpt.h"
! 127: #include "ucom.h"
! 128: #include "pf.h"
! 129: #ifdef USER_PCICONF
! 130: #include "pci.h"
! 131: cdev_decl(pci);
! 132: #endif
! 133:
! 134: #include "systrace.h"
! 135: #include "hotplug.h"
! 136:
! 137: struct cdevsw cdevsw[] =
! 138: {
! 139: cdev_cn_init(1,cn), /* 0: virtual console */
! 140: cdev_ctty_init(1,ctty), /* 1: controlling terminal */
! 141: cdev_mm_init(1,mm), /* 2: /dev/{null,mem,kmem,...} */
! 142: cdev_swap_init(1,sw), /* 3: /dev/drum (swap pseudo-device) */
! 143: cdev_tty_init(NPTY,pts), /* 4: pseudo-tty slave */
! 144: cdev_ptc_init(NPTY,ptc), /* 5: pseudo-tty master */
! 145: cdev_log_init(1,log), /* 6: /dev/klog */
! 146: cdev_bpftun_init(NTUN,tun), /* 7: network tunnel */
! 147: cdev_disk_init(NSD,sd), /* 8: SCSI disk */
! 148: cdev_disk_init(NVND,vnd), /* 9: vnode disk driver */
! 149: cdev_fd_init(1,filedesc), /* 10: file descriptor pseudo-dev */
! 150: cdev_bpftun_init(NBPFILTER,bpf),/* 11: Berkeley packet filter */
! 151: cdev_tape_init(NST,st), /* 12: SCSI tape */
! 152: cdev_disk_init(NCD,cd), /* 13: SCSI CD-ROM */
! 153: cdev_ch_init(NCH,ch), /* 14: SCSI autochanger */
! 154: cdev_tty_init(NSCC,scc), /* 15: scc 8530 serial interface */
! 155: cdev_lkm_init(NLKM,lkm), /* 16: loadable module driver */
! 156: cdev_lkm_dummy(), /* 17 */
! 157: cdev_lkm_dummy(), /* 18 */
! 158: cdev_lkm_dummy(), /* 19 */
! 159: cdev_lkm_dummy(), /* 20 */
! 160: cdev_lkm_dummy(), /* 21 */
! 161: cdev_lkm_dummy(), /* 22 */
! 162: cdev_tty_init(1,prom), /* 23: XXX prom console */
! 163: cdev_audio_init(NAUDIO,audio), /* 24: generic audio I/O */
! 164: cdev_wsdisplay_init(NWSDISPLAY,wsdisplay), /* 25: workstation console */
! 165: cdev_tty_init(NCOM,com), /* 26: ns16550 UART */
! 166: cdev_disk_init(NCCD,ccd), /* 27: concatenated disk driver */
! 167: cdev_disk_init(NRD,rd), /* 28: ram disk driver */
! 168: cdev_mouse_init(NWSKBD,wskbd), /* 29: /dev/kbd XXX */
! 169: cdev_mouse_init(NWSMOUSE,wsmouse), /* 30: /dev/mouse XXX */
! 170: cdev_lpt_init(NLPT,lpt), /* 31: parallel printer */
! 171: cdev_scanner_init(NSS,ss), /* 32: SCSI scanner */
! 172: cdev_uk_init(NUK,uk), /* 33: SCSI unknown */
! 173: cdev_random_init(1,random), /* 34: random data source */
! 174: cdev_pf_init(NPF, pf), /* 35: packet filter */
! 175: cdev_disk_init(NWD,wd), /* 36: ST506/ESDI/IDE disk */
! 176: cdev_disk_init(NFD,fd), /* 37: Floppy disk */
! 177: cdev_tty_init(NCY,cy), /* 38: Cyclom serial port */
! 178: cdev_ksyms_init(NKSYMS,ksyms), /* 39: Kernel symbols device */
! 179: cdev_spkr_init(NSPKR,spkr), /* 40: PC speaker */
! 180: cdev_midi_init(NMIDI,midi), /* 41: MIDI I/O */
! 181: cdev_midi_init(NSEQUENCER,sequencer), /* 42: sequencer I/O */
! 182: cdev_disk_init(NRAID,raid), /* 43: RAIDframe disk driver */
! 183: cdev_notdef(), /* 44 */
! 184: cdev_usb_init(NUSB,usb), /* 45: USB controller */
! 185: cdev_usbdev_init(NUHID,uhid), /* 46: USB generic HID */
! 186: cdev_ulpt_init(NULPT,ulpt), /* 47: USB printer */
! 187: cdev_usbdev_init(NUGEN,ugen), /* 48: USB generic driver */
! 188: cdev_tty_init(NUCOM, ucom), /* 49: USB tty */
! 189: cdev_systrace_init(NSYSTRACE,systrace), /* 50 system call tracing */
! 190: #ifdef XFS
! 191: cdev_xfs_init(NXFS,xfs_dev), /* 51: xfs communication device */
! 192: #else
! 193: cdev_notdef(), /* 51 */
! 194: #endif
! 195: #ifdef USER_PCICONF
! 196: cdev_pci_init(NPCI,pci), /* 52: PCI user */
! 197: #else
! 198: cdev_notdef(),
! 199: #endif
! 200: cdev_bio_init(NBIO,bio), /* 53: ioctl tunnel */
! 201: cdev_iop_init(NIOP, iop), /* 54: I2O IOP control interface */
! 202: cdev_ptm_init(NPTY,ptm), /* 55: pseudo-tty ptm device */
! 203: cdev_hotplug_init(NHOTPLUG,hotplug), /* 56: devices hot plugging */
! 204: cdev_crypto_init(NCRYPTO,crypto), /* 57: /dev/crypto */
! 205: cdev_bktr_init(NBKTR,bktr), /* 58: Bt848 video capture device */
! 206: cdev_radio_init(NRADIO,radio), /* 59: generic radio I/O */
! 207: cdev_mouse_init(NWSMUX, wsmux), /* 60: ws multiplexor */
! 208: };
! 209: int nchrdev = sizeof (cdevsw) / sizeof (cdevsw[0]);
! 210:
! 211: int mem_no = 2; /* major device number of memory special file */
! 212:
! 213: /*
! 214: * Swapdev is a fake device implemented
! 215: * in sw.c used only internally to get to swstrategy.
! 216: * It cannot be provided to the users, because the
! 217: * swstrategy routine munches the b_dev and b_blkno entries
! 218: * before calling the appropriate driver. This would horribly
! 219: * confuse, e.g. the hashing routines. Instead, /dev/drum is
! 220: * provided as a character (raw) device.
! 221: */
! 222: dev_t swapdev = makedev(1, 0);
! 223:
! 224: /*
! 225: * Returns true if dev is /dev/mem or /dev/kmem.
! 226: */
! 227: int
! 228: iskmemdev(dev)
! 229: dev_t dev;
! 230: {
! 231:
! 232: return (major(dev) == mem_no && minor(dev) < 2);
! 233: }
! 234:
! 235: /*
! 236: * Returns true if dev is /dev/zero.
! 237: */
! 238: int
! 239: iszerodev(dev)
! 240: dev_t dev;
! 241: {
! 242:
! 243: return (major(dev) == mem_no && minor(dev) == 12);
! 244: }
! 245:
! 246: dev_t
! 247: getnulldev()
! 248: {
! 249: return makedev(mem_no, 2);
! 250: }
! 251:
! 252: int chrtoblktbl[] = {
! 253: /* XXXX This needs to be dynamic for LKMs. */
! 254: /*VCHR*/ /*VBLK*/
! 255: /* 0 */ NODEV,
! 256: /* 1 */ NODEV,
! 257: /* 2 */ NODEV,
! 258: /* 3 */ NODEV,
! 259: /* 4 */ NODEV,
! 260: /* 5 */ NODEV,
! 261: /* 6 */ NODEV,
! 262: /* 7 */ NODEV,
! 263: /* 8 */ 8, /* sd */
! 264: /* 9 */ 9, /* vnd */
! 265: /* 10 */ NODEV,
! 266: /* 11 */ NODEV,
! 267: /* 12 */ 2, /* st */
! 268: /* 13 */ 3, /* cd */
! 269: /* 14 */ NODEV,
! 270: /* 15 */ NODEV,
! 271: /* 16 */ NODEV,
! 272: /* 17 */ NODEV,
! 273: /* 18 */ NODEV,
! 274: /* 19 */ NODEV,
! 275: /* 20 */ NODEV,
! 276: /* 21 */ NODEV,
! 277: /* 22 */ NODEV,
! 278: /* 23 */ NODEV,
! 279: /* 24 */ NODEV,
! 280: /* 25 */ NODEV,
! 281: /* 26 */ NODEV,
! 282: /* 27 */ 7, /* ccd */
! 283: /* 28 */ 6, /* rd */
! 284: /* 29 */ NODEV,
! 285: /* 30 */ NODEV,
! 286: /* 31 */ NODEV,
! 287: /* 32 */ NODEV,
! 288: /* 33 */ NODEV,
! 289: /* 34 */ NODEV,
! 290: /* 35 */ NODEV,
! 291: /* 36 */ 0,
! 292: /* 37 */ 4, /* fd */
! 293: /* 38 */ NODEV,
! 294: /* 39 */ NODEV,
! 295: /* 40 */ NODEV,
! 296: /* 41 */ NODEV,
! 297: /* 42 */ NODEV,
! 298: /* 43 */ 16, /* raid */
! 299: /* 44 */ NODEV,
! 300: /* 45 */ NODEV,
! 301: /* 46 */ NODEV,
! 302: /* 47 */ NODEV,
! 303: /* 48 */ NODEV,
! 304: /* 49 */ NODEV,
! 305: /* 50 */ NODEV,
! 306: /* 51 */ NODEV,
! 307: };
! 308: int nchrtoblktbl = sizeof(chrtoblktbl) / sizeof(chrtoblktbl[0]);
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