77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
|
/*
|
||
|
|
** dynamically loadable chu driver
|
||
|
|
**
|
||
|
|
** /src/NTP/REPOSITORY/v3/kernel/chuinit.c,v 1.1.1.1 1994/07/11 07:56:25 kardel Exp
|
||
|
|
**
|
||
|
|
** william robertson <rob@agate.berkeley.edu>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/conf.h>
|
||
|
|
#include <sys/errno.h>
|
||
|
|
#include <sys/stream.h>
|
||
|
|
#include <sys/syslog.h>
|
||
|
|
|
||
|
|
#include <sun/openprom.h>
|
||
|
|
#include <sun/vddrv.h>
|
||
|
|
|
||
|
|
extern int findmod(); /* os/str_io.c */
|
||
|
|
|
||
|
|
extern struct streamtab chuinfo;
|
||
|
|
|
||
|
|
struct vdldrv vd = {
|
||
|
|
VDMAGIC_USER,
|
||
|
|
"chu"
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
int
|
||
|
|
xxxinit(function_code, vdp, vdi, vds)
|
||
|
|
unsigned int function_code;
|
||
|
|
struct vddrv *vdp;
|
||
|
|
addr_t vdi;
|
||
|
|
struct vdstat *vds;
|
||
|
|
{
|
||
|
|
register int i = 0;
|
||
|
|
register int j;
|
||
|
|
|
||
|
|
switch (function_code) {
|
||
|
|
case VDLOAD:
|
||
|
|
|
||
|
|
if (findmod("chu") >= 0) {
|
||
|
|
log(LOG_ERR, "chu stream module already loaded\n");
|
||
|
|
return (EADDRINUSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
i = findmod("\0");
|
||
|
|
|
||
|
|
if (i == -1 || fmodsw[i].f_name[0] != '\0')
|
||
|
|
return(-1);
|
||
|
|
|
||
|
|
for (j = 0; vd.Drv_name[j] != '\0'; j++) /* XXX check bounds */
|
||
|
|
fmodsw[i].f_name[j] = vd.Drv_name[j];
|
||
|
|
|
||
|
|
fmodsw[i].f_name[j] = '\0';
|
||
|
|
fmodsw[i].f_str = &chuinfo;
|
||
|
|
|
||
|
|
vdp->vdd_vdtab = (struct vdlinkage *) &vd;
|
||
|
|
|
||
|
|
return(0);
|
||
|
|
|
||
|
|
case VDUNLOAD:
|
||
|
|
if ((i = findmod(vd.Drv_name)) == -1)
|
||
|
|
return(-1);
|
||
|
|
|
||
|
|
fmodsw[i].f_name[0] = '\0';
|
||
|
|
fmodsw[i].f_str = 0;
|
||
|
|
|
||
|
|
return(0);
|
||
|
|
|
||
|
|
case VDSTAT:
|
||
|
|
return(0);
|
||
|
|
|
||
|
|
default:
|
||
|
|
return(EIO);
|
||
|
|
}
|
||
|
|
}
|