/*===========================================================================*
* mapdrivers *
*===========================================================================*/
PUBLIC void mapdrivers()
{
/* Map drivers to controllers and update the task table to that selection. */
static char name[] = "c0";
int c;
struct drivertab *dp;
char *drivername;
struct tasktab *tp;
for (c= 0; c < NR_CTRLRS; c++) {
name[1] = '0' + c;
if ((drivername = getenv(name)) == NULL) continue;
for (dp = drivertab;
dp < drivertab + sizeof(drivertab)/sizeof(drivertab[0]); dp++) {
if (strcmp(drivername, dp->drivername) == 0) {
tp = &tasktab[CTRLR(c) + NR_TASKS];
tp->initial_pc = dp->driver;
strcpy(tp->name, drivername);
}
}
}
}
/* The order of the entries here determines the mapping between major device
* numbers and tasks. The first entry (major device 0) is not used. The
* next entry is major device 1, etc. Character and block devices can be
* intermixed at random. This ordering determines the device numbers in
* /dev/ and is thereby more or less cast in stone once allocated.
* Note that the major device numbers used in /dev are NOT the same as the
* task numbers used inside the kernel (as defined in <include/minix/com.h>).
* Also note that FS knows the device number of /dev/ram to load the RAM disk.
*/
PUBLIC struct dmap dmap[] = {
/* ? Open/Close I/O Task # Device File
- ---------- -------- ----------- ------ ---- */
DT(1, no_dev, 0, 0) /* 0 = not used */
DT(1, gen_opcl, gen_io, MEM) /* 1 = /dev/mem */
DT(1, gen_opcl, gen_io, FLOPPY) /* 2 = /dev/fd0 */
DT(NR_CTRLRS >= 1, gen_opcl, gen_io, CTRLR(0)) /* 3 = /dev/c0 */
DT(1, tty_opcl, gen_io, TTY) /* 4 = /dev/tty00 */
DT(1, ctty_opcl, ctty_io, TTY) /* 5 = /dev/tty */
DT(ENABLE_PRINTER, gen_opcl, gen_io, PRINTER) /* 6 = /dev/lp */
#if (MACHINE == IBM_PC)
DT(1, no_dev, 0, ANY) /* 7 = /dev/ip */
DT(NR_CTRLRS >= 2, gen_opcl, gen_io, CTRLR(1)) /* 8 = /dev/c1 */
DT(0, 0, 0, 0) /* 9 = not used */
DT(NR_CTRLRS >= 3, gen_opcl, gen_io, CTRLR(2)) /*10 = /dev/c2 */
DT(0, 0, 0, 0) /*11 = not used */
DT(NR_CTRLRS >= 4, gen_opcl, gen_io, CTRLR(3)) /*12 = /dev/c3 */
DT(ENABLE_SB16, gen_opcl, gen_io, SB16) /*13 = /dev/audio */
DT(ENABLE_SB16, gen_opcl, gen_io, SB16MIXER) /*14 = /dev/mixer */
#endif /* IBM_PC */
};