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NetBSD/sys/arch/alpha/stand/netboot/getsecs.c

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start on some network boot blocks. they work, but: (1) the if_prom code needs to be cleaned up quite a bit (right now it hard-codes client's ethernet address), and (2) much of this code (esp: getsecs.c, netboot.c, newvers.sh, rpcc.S) should be shared with other Alpha boot blocks, and dev_net.[ch] should maybe go in libsa proper.
1996-09-19 00:03:04 +04:00
#include <sys/param.h>
#include "include/prom.h"
#include "include/rpb.h"
int
getsecs()
{
static long tnsec;
static long lastpcc, wrapsecs;
long curpcc, pccdiff;
if (tnsec == 0) {
spaces/tabs cleanup
1996-10-03 01:18:45 +04:00
tnsec = 1;
start on some network boot blocks. they work, but: (1) the if_prom code needs to be cleaned up quite a bit (right now it hard-codes client's ethernet address), and (2) much of this code (esp: getsecs.c, netboot.c, newvers.sh, rpcc.S) should be shared with other Alpha boot blocks, and dev_net.[ch] should maybe go in libsa proper.
1996-09-19 00:03:04 +04:00
lastpcc = alpha_rpcc() & 0xffffffff;
wrapsecs = (0xffffffff /
((struct rpb *)HWRPB_ADDR)->rpb_cc_freq) + 1;
checkpoint current development, add ELF toolchain build support
1996-09-23 08:30:56 +04:00
#if 0
start on some network boot blocks. they work, but: (1) the if_prom code needs to be cleaned up quite a bit (right now it hard-codes client's ethernet address), and (2) much of this code (esp: getsecs.c, netboot.c, newvers.sh, rpcc.S) should be shared with other Alpha boot blocks, and dev_net.[ch] should maybe go in libsa proper.
1996-09-19 00:03:04 +04:00
printf("getsecs: cc freq = %d, time to wrap = %d\n",
((struct rpb *)HWRPB_ADDR)->rpb_cc_freq, wrapsecs);
checkpoint current development, add ELF toolchain build support
1996-09-23 08:30:56 +04:00
#endif
start on some network boot blocks. they work, but: (1) the if_prom code needs to be cleaned up quite a bit (right now it hard-codes client's ethernet address), and (2) much of this code (esp: getsecs.c, netboot.c, newvers.sh, rpcc.S) should be shared with other Alpha boot blocks, and dev_net.[ch] should maybe go in libsa proper.
1996-09-19 00:03:04 +04:00
}
curpcc = alpha_rpcc() & 0xffffffff;
if (curpcc < lastpcc)
curpcc += 0x100000000;
tnsec += ((curpcc - lastpcc) * 1000000000) / ((struct rpb *)HWRPB_ADDR)->rpb_cc_freq;
lastpcc = curpcc;
return (tnsec / 1000000000);
}