diff options
Diffstat (limited to 'sys/arch/amd64/stand/pxeboot/devopen.c')
| -rw-r--r-- | sys/arch/amd64/stand/pxeboot/devopen.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/sys/arch/amd64/stand/pxeboot/devopen.c b/sys/arch/amd64/stand/pxeboot/devopen.c new file mode 100644 index 00000000000..264edfecab9 --- /dev/null +++ b/sys/arch/amd64/stand/pxeboot/devopen.c @@ -0,0 +1,217 @@ +/* $OpenBSD: devopen.c,v 1.1 2004/03/21 21:37:41 tom Exp $ */ + +/* + * Copyright (c) 1994 Tom Cosgrove + * Copyright (c) 1996-1999 Michael Shalayeff + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "libsa.h" +#include "biosdev.h" +#include <sys/param.h> +#include <dev/cons.h> + +extern int debug; + +extern char *fs_name[]; +extern int nfsname; +extern struct devsw netsw[]; + +/* XXX use slot for 'rd' for 'hd' pseudo-device */ +const char bdevs[][4] = { + "wd", "", "fd", "wt", "sd", "st", "cd", "mcd", + "", "", "", "", "", "", "", "scd", "", "hd", "" +}; +const int nbdevs = NENTS(bdevs); + +const char cdevs[][4] = { + "cn", "", "", "", "", "", "", "", + "com", "", "", "", "pc" +}; +const int ncdevs = NENTS(cdevs); + +/* pass dev_t to the open routines */ +int +devopen(struct open_file *f, const char *fname, char **file) +{ + struct devsw *dp = devsw; + char *p; + char *stripdev; + int i, l; + int rc = 1; + + *file = (char *)fname; + +#ifdef DEBUG + if (debug) + printf("devopen(%s):", fname); +#endif + + /* Make sure we have a prefix, e.g. hd0a: or tftp:. */ + for (p = (char *)fname; *p != ':' && *p != '\0'; ) p++; + if (*p != ':') + return 1; + stripdev = p + 1; + + l = p - fname; /* Length of device prefix. */ + for (i = 0; i < nfsname; i++) { + if ((fs_name[i] != NULL) && + (strncmp(fname, fs_name[i], l) == 0)) { + + /* Force oopen() etc to use this filesystem. */ + f->f_ops = &file_system[i]; + f->f_dev = dp = &netsw[0]; + + rc = (*dp->dv_open)(f, NULL); + if (rc == 0) + *file = stripdev; + else + f->f_dev = NULL; +#ifdef DEBUG + if (debug) + putchar('\n'); +#endif + return rc; + } + } + + for (i = 0; i < ndevs && rc != 0; dp++, i++) { +#ifdef DEBUG + if (debug) + printf(" %s: ", dp->dv_name); +#endif + if ((rc = (*dp->dv_open)(f, file)) == 0) { + f->f_dev = dp; + return 0; + } +#ifdef DEBUG + else if (debug) + printf("%d", rc); +#endif + + } +#ifdef DEBUG + if (debug) + putchar('\n'); +#endif + + if ((f->f_flags & F_NODEV) == 0) + f->f_dev = dp; + + return rc; +} + +void +devboot(dev_t bootdev, char *p) +{ + *p++ = 't'; + *p++ = 'f'; + *p++ = 't'; + *p++ = 'p'; + *p = '\0'; +} + +int pch_pos = 0; + +void +putchar(int c) +{ + switch (c) { + case '\177': /* DEL erases */ + cnputc('\b'); + cnputc(' '); + case '\b': + cnputc('\b'); + if (pch_pos) + pch_pos--; + break; + case '\t': + do + cnputc(' '); + while (++pch_pos % 8); + break; + case '\n': + case '\r': + cnputc(c); + pch_pos=0; + break; + default: + cnputc(c); + pch_pos++; + break; + } +} + +int +getchar(void) +{ + register int c = cngetc(); + + if (c == '\r') + c = '\n'; + + if ((c < ' ' && c != '\n') || c == '\177') + return c; + + putchar(c); + + return c; +} + +char ttyname_buf[8]; + +char * +ttyname(int fd) +{ + snprintf(ttyname_buf, sizeof ttyname_buf, "%s%d", + cdevs[major(cn_tab->cn_dev)], minor(cn_tab->cn_dev)); + + return ttyname_buf; +} + +dev_t +ttydev(char *name) +{ + int i, unit = -1; + char *no = name + strlen(name) - 1; + + while (no >= name && *no >= '0' && *no <= '9') + unit = (unit < 0 ? 0 : (unit * 10)) + *no-- - '0'; + if (no < name || unit < 0) + return NODEV; + for (i = 0; i < ncdevs; i++) + if (strncmp(name, cdevs[i], no - name + 1) == 0) + return (makedev(i, unit)); + return NODEV; +} + +int +cnspeed(dev_t dev, int sp) +{ + if (major(dev) == 8) /* comN */ + return (comspeed(dev, sp)); + + /* pc0 and anything else */ + return 9600; +} |