diff options
Diffstat (limited to 'sys/boot/i386/boot2/boot2.c')
| -rw-r--r-- | sys/boot/i386/boot2/boot2.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/sys/boot/i386/boot2/boot2.c b/sys/boot/i386/boot2/boot2.c index 6998026..cd384e5 100644 --- a/sys/boot/i386/boot2/boot2.c +++ b/sys/boot/i386/boot2/boot2.c @@ -34,9 +34,22 @@ __FBSDID("$FreeBSD$"); #include "boot2.h" #include "lib.h" +/* Define to 0 to omit serial support */ +#ifndef SERIAL +#define SERIAL 1 +#endif + #define IO_KEYBOARD 1 #define IO_SERIAL 2 +#if SERIAL +#define DO_KBD (ioctrl & IO_KEYBOARD) +#define DO_SIO (ioctrl & IO_SERIAL) +#else +#define DO_KBD (1) +#define DO_SIO (0) +#endif + #define SECOND 18 /* Circa that many ticks in a second. */ #define RBX_ASKNAME 0x0 /* -a */ @@ -131,9 +144,11 @@ static struct dsk { static char cmd[512], cmddup[512], knamebuf[1024]; static const char *kname; static uint32_t opts; -static int comspeed = SIOSPD; static struct bootinfo bootinfo; +#if SERIAL +static int comspeed = SIOSPD; static uint8_t ioctrl = IO_KEYBOARD; +#endif void exit(int); static void load(void); @@ -276,7 +291,7 @@ main(void) "boot: ", dsk.drive & DRV_MASK, dev_nm[dsk.type], dsk.unit, 'a' + dsk.part, kname); - if (ioctrl & IO_SERIAL) + if (DO_SIO) sio_flush(); if (!autoboot || keyhit(3*SECOND)) getstr(); @@ -398,6 +413,7 @@ parse() } printf("Keyboard: %s\n", cp); continue; +#if SERIAL } else if (c == 'S') { j = 0; while ((unsigned int)(i = *arg++ - '0') <= 9) @@ -407,18 +423,21 @@ parse() break; } /* Fall through to error below ('S' not in optstr[]). */ +#endif } for (i = 0; c != optstr[i]; i++) if (i == NOPT - 1) return -1; opts ^= OPT_SET(flags[i]); } +#if SERIAL ioctrl = OPT_CHECK(RBX_DUAL) ? (IO_SERIAL|IO_KEYBOARD) : OPT_CHECK(RBX_SERIAL) ? IO_SERIAL : IO_KEYBOARD; - if (ioctrl & IO_SERIAL) { + if (DO_SIO) { if (sio_init(115200 / comspeed) != 0) ioctrl &= ~IO_SERIAL; } +#endif } else { for (q = arg--; *q && *q != '('; q++); if (*q) { @@ -626,9 +645,9 @@ keyhit(unsigned ticks) static int xputc(int c) { - if (ioctrl & IO_KEYBOARD) + if (DO_KBD) putc(c); - if (ioctrl & IO_SERIAL) + if (DO_SIO) sio_putc(c); return c; } @@ -648,9 +667,9 @@ xgetc(int fn) if (OPT_CHECK(RBX_NOINTR)) return 0; for (;;) { - if (ioctrl & IO_KEYBOARD && getc(1)) + if (DO_KBD && getc(1)) return fn ? 1 : getc(0); - if (ioctrl & IO_SERIAL && sio_ischar()) + if (DO_SIO && sio_ischar()) return fn ? 1 : sio_getc(); if (fn) return 0; |
