Annotation of sys/arch/mvme88k/stand/tftpboot/netdev.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: netdev.c,v 1.2 2006/05/16 22:52:09 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1993 Paul Kranenburg
! 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 Paul Kranenburg.
! 18: * 4. The name of the author may not be used to endorse or promote products
! 19: * derived from this software without specific prior written permission
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 22: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 23: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 24: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 25: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 26: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 27: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 28: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 29: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 30: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 31: */
! 32:
! 33: #include <sys/param.h>
! 34: #include <machine/prom.h>
! 35: #include <string.h>
! 36:
! 37: #include "stand.h"
! 38: #include "tftpfs.h"
! 39:
! 40: #include "libsa.h"
! 41:
! 42: struct bugdev_softc {
! 43: short clun;
! 44: short dlun;
! 45: } bugdev_softc[1];
! 46:
! 47: int
! 48: devopen(f, fname, file)
! 49: struct open_file *f;
! 50: const char *fname;
! 51: char **file;
! 52: {
! 53: struct bugdev_softc *pp = &bugdev_softc[0];
! 54:
! 55: pp->clun = (short)bugargs.ctrl_lun;
! 56: pp->dlun = (short)bugargs.dev_lun;
! 57:
! 58: f->f_devdata = (void *)pp;
! 59: f->f_dev = &devsw[0];
! 60: *file = (char *)fname;
! 61: return (0);
! 62: }
! 63:
! 64: #define NFR_TIMEOUT 5
! 65:
! 66: int
! 67: net_strategy(devdata, func, nblk, size, buf, rsize)
! 68: void *devdata;
! 69: int func;
! 70: daddr_t nblk;
! 71: size_t size;
! 72: void *buf;
! 73: size_t *rsize;
! 74: {
! 75: struct bugdev_softc *pp = (struct bugdev_softc *)devdata;
! 76: struct mvmeprom_netfread nfr;
! 77: int attempts;
! 78:
! 79: for (attempts = 0; attempts < 10; attempts++) {
! 80: nfr.ctrl = pp->clun;
! 81: nfr.dev = pp->dlun;
! 82: nfr.status = 0;
! 83: nfr.addr = (u_long)buf;
! 84: nfr.bytes = 0;
! 85: nfr.blk = nblk;
! 86: nfr.timeout = NFR_TIMEOUT;
! 87: mvmeprom_netfread(&nfr);
! 88:
! 89: if (rsize) {
! 90: *rsize = nfr.bytes;
! 91: }
! 92:
! 93: if (nfr.status == 0)
! 94: return (0);
! 95: }
! 96:
! 97: return (EIO);
! 98: }
! 99:
! 100: int
! 101: net_open(struct open_file *f, ...)
! 102: {
! 103: va_list ap;
! 104: struct mvmeprom_netfopen nfo;
! 105: struct bugdev_softc *pp = (struct bugdev_softc *)f->f_devdata;
! 106: char *filename;
! 107:
! 108: va_start(ap, f);
! 109: filename = va_arg(ap, char *);
! 110: va_end(ap);
! 111:
! 112: nfo.ctrl = pp->clun;
! 113: nfo.dev = pp->dlun;
! 114: nfo.status = 0;
! 115: strlcpy(nfo.filename, filename, sizeof nfo.filename);
! 116: mvmeprom_netfopen(&nfo);
! 117:
! 118: #ifdef DEBUG
! 119: printf("tftp open(%s): error %x\n", filename, nfo.status);
! 120: #endif
! 121: return (nfo.status);
! 122: }
! 123:
! 124: int
! 125: net_close(f)
! 126: struct open_file *f;
! 127: {
! 128: return (0);
! 129: }
! 130:
! 131: int
! 132: net_ioctl(f, cmd, data)
! 133: struct open_file *f;
! 134: u_long cmd;
! 135: void *data;
! 136: {
! 137: return (EIO);
! 138: }
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