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1 | /* |
2 | * Copyright (c) 1988 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Computer Consoles Inc. | |
7 | * | |
ad787160 C |
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. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
3b03fe44 KB |
35 | */ |
36 | ||
37 | #ifndef lint | |
38 | char copyright[] = | |
39 | "@(#) Copyright (c) 1988 The Regents of the University of California.\n\ | |
40 | All rights reserved.\n"; | |
41 | #endif /* not lint */ | |
42 | ||
3446b677 | 43 | #ifndef lint |
ad787160 | 44 | static char sccsid[] = "@(#)enpload.c 5.4 (Berkeley) 1/14/91"; |
3b03fe44 | 45 | #endif /* not lint */ |
3446b677 SL |
46 | |
47 | /* | |
48 | * CMC Ethernet ``Microcode'' Loader. | |
49 | */ | |
3446b677 SL |
50 | #include <sys/types.h> |
51 | #include <sys/file.h> | |
52 | #include <sys/ioctl.h> | |
f749af7f KB |
53 | #include <tahoe/if/if_enpreg.h> |
54 | #include <stdio.h> | |
55 | #include <a.out.h> | |
3446b677 SL |
56 | |
57 | char *dev; | |
58 | ||
59 | main(argc, argv) | |
60 | int argc; | |
61 | char *argv[]; | |
62 | { | |
63 | int enp = -1, fd, first = 1, nostart = 0; | |
64 | ||
65 | argc--, argv++; | |
66 | if (argc > 0) { | |
67 | enp = open(dev = argv[0], O_RDWR); | |
68 | if (enp < 0) { | |
69 | fprintf(stderr, "enpload: "); | |
70 | perror(dev); | |
71 | exit(-1); | |
72 | } | |
73 | argc--, argv++; | |
74 | } | |
75 | for (; argc > 0; argc--, argv++) { | |
76 | if (strcmp(argv[0], "-s") == 0 || strcmp(argv[0], "-S") == 0) { | |
77 | nostart++; | |
78 | continue; | |
79 | } | |
80 | if (first) { | |
81 | /* | |
82 | * Reset device before first file is loaded. | |
83 | */ | |
84 | if (ioctl(enp, ENPIORESET) < 0) { | |
85 | fprintf(stderr, "enpload: %s: ", dev); | |
86 | perror("ioctl (ENPIORESET)"); | |
87 | exit(-1); | |
88 | } | |
89 | first = !first; | |
90 | } | |
91 | if ((fd = open(argv[0], O_RDONLY)) < 0) { | |
92 | fprintf(stderr, "enpload: "), perror(argv[0]); | |
93 | exit(1); | |
94 | } | |
95 | enpload(enp, fd, argv[0]); | |
96 | close(fd); | |
97 | } | |
98 | if (enp != -1 && !nostart && ioctl(enp, ENPIOGO) < 0) { | |
99 | fprintf(stderr, "enpload: "); | |
100 | perror("ioctl (ENPIOGO)"); | |
101 | exit(-1); | |
102 | } | |
103 | exit(0); | |
104 | } | |
105 | ||
106 | #define RELO 0x03FFFF /* relocation offset */ | |
107 | #define ENPMSTART 0x0 /* start of memory */ | |
108 | #define BSIZE 512 /* buffer size */ | |
109 | char buff[BSIZE]; | |
110 | char zbuf[BSIZE]; | |
111 | ||
112 | enpload(enp, fd, filename) | |
113 | int enp, fd; | |
114 | char *filename; | |
115 | { | |
116 | int cnt, size, lstart; | |
117 | struct exec hdr; | |
118 | ||
119 | if (read(fd, &hdr, sizeof (hdr)) != sizeof (hdr)) { | |
120 | fprintf(stderr, "enpload: %s: Read short (header).\n", | |
121 | filename); | |
122 | exit(1); | |
123 | } | |
124 | if (N_BADMAG(hdr)) { | |
125 | fprintf(stderr, "enpload: %s: Bad magic number.\n", filename); | |
126 | exit(1); | |
127 | } | |
128 | size = hdr.a_text + hdr.a_data; | |
129 | lstart = (ENPMSTART + (hdr.a_entry & RELO)) - 0x1000; | |
130 | ||
131 | printf("%s: Loading %s...", dev, filename); | |
132 | (void) lseek(enp, lstart + size, L_SET); | |
133 | while (hdr.a_bss >= BSIZE) { | |
134 | if (write(enp, zbuf, BSIZE) != BSIZE) { | |
135 | fprintf(stderr, "enpload: Bss write error.\n"); | |
136 | exit(-1); | |
137 | } | |
138 | hdr.a_bss -= BSIZE; | |
139 | } | |
140 | if (hdr.a_bss > 0 && write(enp, zbuf, hdr.a_bss) != hdr.a_bss) { | |
141 | fprintf(stderr, "enpload: Bss write error.\n"); | |
142 | exit(-1); | |
143 | } | |
144 | (void) lseek(enp, lstart, L_SET); | |
145 | while (size > BSIZE) { | |
146 | cnt = read(fd, buff, BSIZE); | |
147 | size -= cnt; | |
148 | if (write(enp, buff, cnt) != cnt) { | |
149 | fprintf(stderr, "enpload: Write error.\n"); | |
150 | exit(-1); | |
151 | } | |
152 | } | |
153 | if (size > 0) { | |
154 | cnt = read(fd, buff, size); | |
155 | if (write(enp, buff, cnt) != cnt) { | |
156 | fprintf(stderr, "enpload: Write error.\n"); | |
157 | exit(-1); | |
158 | } | |
159 | } | |
160 | printf("done.\n"); | |
161 | } |