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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: }