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Added dmap_async_driver and dmap_sel_filp fields. Support for asynch character

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drivers (needs cleaning up).
This commit is contained in:
Philip Homburg 2008-02-22 15:01:00 +00:00
parent 9df94c5ee8
commit d9a9b727e2
2 changed files with 18 additions and 30 deletions
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42
servers/vfs/dmap.c
View File

@ -16,7 +16,7 @@
/* Some devices may or may not be there in the next table. */
#define DT(enable, opcl, io, driver, flags, label) \
{ (enable?(opcl):no_dev), (enable?(io):0), \
(enable?(driver):0), (flags), label },
(enable?(driver):0), (flags), label, FALSE },
#define NC(x) (NR_CTRLRS >= (x))
/* The order of the entries here determines the mapping between major device
@ -49,10 +49,10 @@ PRIVATE struct dmap init_dmap[] = {
DT(0, 0, 0, 0, DMAP_MUTABLE, "") /*11 = not used */
DT(0, no_dev, 0, NONE, DMAP_MUTABLE, "") /*12 = /dev/c3 */
DT(0, no_dev, 0, NONE, DMAP_MUTABLE, "") /*13 = /dev/audio */
DT(0, no_dev, 0, NONE, DMAP_MUTABLE, "") /*14 = /dev/mixer */
DT(0, 0, 0, 0, DMAP_MUTABLE, "") /*14 = not used */
DT(1, gen_opcl, gen_io, LOG_PROC_NR, 0, "") /*15 = /dev/klog */
DT(0, no_dev, 0, NONE, DMAP_MUTABLE, "") /*16 = /dev/random*/
DT(0, no_dev, 0, NONE, DMAP_MUTABLE, "") /*17 = /dev/cmos */
DT(0, 0, 0, 0, DMAP_MUTABLE, "") /*17 = not used */
#endif /* IBM_PC */
};
@ -169,7 +169,10 @@ PUBLIC int do_mapdriver()
}
if (isokendpt(tasknr, &proc_nr_n) != OK)
{
printf("vfs:do_mapdriver: bad endpoint %d\n", tasknr);
return(EINVAL);
}
/* Try to update device mapping. */
major= m_in.md_major;
@ -316,6 +319,9 @@ int force;
dp->dmap_io = gen_io;
dp->dmap_driver = proc_nr_e;
if (dp->dmap_async_driver)
dp->dmap_io= asyn_io;
return(OK);
}
@ -357,6 +363,7 @@ PUBLIC void build_dmap()
dp->dmap_driver = init_dmap[i].dmap_driver;
dp->dmap_flags = init_dmap[i].dmap_flags;
strcpy(dp->dmap_label, init_dmap[i].dmap_label);
dp->dmap_async_driver= FALSE;
} else { /* no default */
dp->dmap_opcl = no_dev;
dp->dmap_io = no_dev_io;
@ -365,32 +372,11 @@ PUBLIC void build_dmap()
}
}
#if 0
/* Get settings of 'controller' and 'driver' at the boot monitor. */
if ((s = env_get_param("label", driver, sizeof(driver))) != OK)
panic(__FILE__,"couldn't get boot monitor parameter 'driver'", s);
if ((s = env_get_param("controller", controller, sizeof(controller))) != OK)
panic(__FILE__,"couldn't get boot monitor parameter 'controller'", s);
dmap[13].dmap_async_driver= TRUE; /* Audio */
dmap[15].dmap_async_driver= TRUE; /* Log */
dmap[15].dmap_io= asyn_io;
dmap[16].dmap_async_driver= TRUE; /* Random */
/* Determine major number to map driver onto. */
if (controller[0] == 'f' && controller[1] == 'd') {
major = FLOPPY_MAJOR;
}
else if (controller[0] == 'c' && isdigit(controller[1])) {
if ((nr = (unsigned) atoi(&controller[1])) > NR_CTRLRS)
panic(__FILE__,"monitor 'controller' maximum 'c#' is", NR_CTRLRS);
major = CTRLR(nr);
}
else {
panic(__FILE__,"monitor 'controller' syntax is 'c#' of 'fd'", NO_NUM);
}
/* Now try to set the actual mapping and report to the user. */
if ((s=map_driver(major, DRVR_PROC_NR, STYLE_DEV)) != OK)
panic(__FILE__,"map_driver failed",s);
printf("Boot medium driver: %s driver mapped onto controller %s.\n",
driver, controller);
#endif
}
/*===========================================================================*

4
servers/vfs/dmap.h
View File

@ -18,7 +18,9 @@ dmap.h
extern struct dmap {
int _PROTOTYPE ((*dmap_opcl), (int, Dev_t, int, int) );
int _PROTOTYPE ((*dmap_io), (int, message *) );
int dmap_driver;
endpoint_t dmap_driver;
int dmap_flags;
char dmap_label[16];
int dmap_async_driver;
struct filp *dmap_sel_filp;
} dmap[];