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tell dset how to save the pnp info in the kernel...

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This commit is contained in:
John-Mark Gurney 1997-09-09 12:51:02 +00:00
parent 7806e33667
commit 1ccbcf70f7
1 changed files with 86 additions and 0 deletions
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86
sbin/dset/dset.c
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@ -30,6 +30,10 @@
#include <machine/param.h>
#include "i386/isa/isa_device.h"
#include "i386/isa/pnp.h"
struct pnp_cinfo new_ov[MAX_PNP_LDN];
struct pnp_cinfo old_ov[MAX_PNP_LDN];
#define TRUE 1
#define FALSE 0
@ -58,6 +62,16 @@ struct nlist nlaux[] = {
{""},
};
struct nlist nlpnp[] = {
{"_pnp_ldn_overrides"},
{""},
};
struct nlist nlconfig[] = {
{"config.o"},
{""},
};
int quiet = FALSE;
void
@ -337,6 +351,78 @@ main(ac, av)
}
}
if (kvm_nlist(kd, nlpnp) != 0) {
/* pnp_ldn_overrides need not exist, only handle it if found */
if (verbose)
printf("pnp_ldn_overrides not found, ignoring.\n");
} else {
if (nlpnp[0].n_type == 0)
fatal("kvm_nlist", "bad symbol type");
/* must handle it, read and write... */
pos1 = nlpnp[0].n_value ;
if (kvm_read(kd, pos1, &new_ov, sizeof(new_ov) ) < 0 )
fatal("kvmread", NULL);
if (nlist(kernel, nlpnp) != 0)
fatal("nlist", NULL);
if (nlpnp[0].n_type == 0)
fatal("nlist", "bad symbol type");
pos = nlpnp[0].n_value + getpagesize() - entry;
if (lseek(f, pos, SEEK_SET) != pos)
fatal("seek", NULL);
if ((res = read(f, (char *) &old_ov, sizeof(old_ov))) <= 0 )
fatal("read", NULL);
if (testonly || bcmp(&old_ov, &new_ov, sizeof(old_ov)) ) {
if (verbose) {
int i;
printf("CSN LDN conf en irq drq vendor_id. ....\n");
for (i=0; i < MAX_PNP_LDN ; i++) {
if (new_ov[i].csn>0 && new_ov[i].csn<255) {
int maxp, maxm;
for (maxp=7; maxp>=0 ; maxp--)
if (new_ov[i].port[maxp] !=0) break;
for (maxm=3; maxm>=0 ; maxm--)
if (new_ov[i].mem[maxm].base !=0) break;
printf("%3d %3d %-4s %c ",
new_ov[i].csn,
new_ov[i].ldn,
new_ov[i].override ? "OS":"BIOS",
new_ov[i].enable ? 'y':'n');
printf(new_ov[i].irq[0] == 0 ? " -":" %2d",
new_ov[i].irq[0]);
printf(new_ov[i].irq[1] == 0 ? " - ":"%-2d",
new_ov[i].irq[1]);
printf(new_ov[i].drq[0] == 4 ? " -":" %d",
new_ov[i].drq[0]);
printf(new_ov[i].drq[1] == 4 ? " -":" %d",
new_ov[i].drq[1]);
if (new_ov[i].vendor_id > 0)
printf(" 0x%08x", new_ov[i].vendor_id);
if (new_ov[i].flags > 0)
printf(" flags 0x%08x", new_ov[i].flags);
if (maxp >=0) {
int j;
printf(" port 0x%x", new_ov[i].port[0]);
for(j=1;j<=maxp;j++)
printf(" 0x%x", new_ov[i].port[j]);
}
if (maxm >=0) {
int j;
printf(" mem 0x%x", new_ov[i].mem[0].base);
for(j=1;j<=maxm;j++)
printf(" 0x%x", new_ov[i].mem[j].base);
}
printf("\n");
}
}
}
if (!testonly) {
res = lseek(f, -(off_t) sizeof(new_ov),
SEEK_CUR);
if (write(f,&new_ov, sizeof(new_ov)) <= 0)
fatal("write", NULL);
}
}
}
if (chflags(kernel, flags) < 0)
fatal("chflags restore", NULL);