Annotation of sys/arch/landisk/stand/boot/devs.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: devs.c,v 1.6 2006/11/16 23:12:56 deraadt Exp $ */
2:
3: /*
4: * Copyright (c) 2006 Michael Shalayeff
5: * All rights reserved.
6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
16: * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
17: * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20: #include <sys/param.h>
21: #include <libsa.h>
22: #include <lib/libsa/loadfile.h>
23:
24: int sector;
25:
26: void
27: machdep(void)
28: {
29: tick_init();
30:
31: /* scif_init(9600); */
32: }
33:
34: int
35: devopen(struct open_file *f, const char *fname, char **file)
36: {
37: if (fname[0] != 'c' || fname[1] != 'f' || fname[2] != ':')
38: return EINVAL;
39:
40: *file = (char *)fname + 3;
41: f->f_flags |= F_NODEV;
42: f->f_dev = &devsw[0];
43: return (0);
44: }
45:
46: void
47: devboot(dev_t bootdev, char *p)
48: {
49: sector = bootdev; /* passed from pbr */
50: p[0] = 'c';
51: p[1] = 'f';
52: p[2] = '\0';
53: }
54:
55: char *
56: ttyname(int fd)
57: {
58: return "scif";
59: }
60:
61: dev_t
62: ttydev(char *name)
63: {
64: return NODEV;
65: }
66:
67: int
68: cnspeed(dev_t dev, int sp)
69: {
70: scif_init(sp);
71: return sp;
72: }
73:
74: void
75: run_loadfile(u_long *marks, int howto)
76: {
77: u_long entry;
78:
79: entry = marks[MARK_ENTRY];
80: cache_flush();
81: cache_disable();
82:
83: (*(void (*)(int,int,int))entry)(howto, marks[MARK_END], 0);
84: }
85:
86: int
87: blkdevopen(struct open_file *f, ...)
88: {
89: return 0;
90: }
91:
92: int
93: blkdevstrategy(void *v, int flag, daddr_t dblk, size_t size, void *buf, size_t *rsize)
94: {
95:
96: if (flag != F_READ)
97: return EROFS;
98:
99: if (size & (DEV_BSIZE - 1))
100: return EINVAL;
101:
102: if (rsize)
103: *rsize = size;
104:
105: if (size != 0 && readsects(0x40, sector + dblk, buf,
106: size / DEV_BSIZE) != 0)
107: return EIO;
108:
109: return 0;
110: }
111:
112: int
113: blkdevclose(struct open_file *f)
114: {
115: return 0;
116: }
117:
118: int pch_pos = 0;
119:
120: void
121: putchar(int c)
122: {
123: switch (c) {
124: case '\177': /* DEL erases */
125: scif_putc('\b');
126: scif_putc(' ');
127: case '\b':
128: scif_putc('\b');
129: if (pch_pos)
130: pch_pos--;
131: break;
132: case '\t':
133: do
134: scif_putc(' ');
135: while (++pch_pos % 8);
136: break;
137: case '\n':
138: scif_putc(c);
139: case '\r':
140: scif_putc('\r');
141: pch_pos=0;
142: break;
143: default:
144: scif_putc(c);
145: pch_pos++;
146: break;
147: }
148: }
149:
150: int
151: getchar(void)
152: {
153: int c = scif_getc();
154:
155: if (c == '\r')
156: c = '\n';
157:
158: if ((c < ' ' && c != '\n') || c == '\177')
159: return c;
160:
161: putchar(c);
162: return c;
163: }
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