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Annotation of sys/arch/mvme88k/stand/tftpboot/netdev.c, Revision 1.1.1.1

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: }