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Changed to use sys_readbios to get BIOS parameters.

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This commit is contained in:
Philip Homburg 2006-07-10 12:34:41 +00:00
parent 6f4091eb8c
commit dcb7cae67c
1 changed files with 19 additions and 17 deletions
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36
drivers/at_wini/at_wini.c
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@ -446,31 +446,33 @@ PRIVATE void init_params()
if (w_instance == 0) {
/* Get the number of drives from the BIOS data area */
if ((s=sys_vircopy(SELF, BIOS_SEG, NR_HD_DRIVES_ADDR,
SELF, D, (vir_bytes) params, NR_HD_DRIVES_SIZE)) != OK)
s=sys_readbios(NR_HD_DRIVES_ADDR, params, NR_HD_DRIVES_SIZE);
if (s != OK)
panic(w_name(), "Couldn't read BIOS", s);
if ((nr_drives = params[0]) > 2) nr_drives = 2;
for (drive = 0, wn = wini; drive < COMPAT_DRIVES; drive++, wn++) {
if (drive < nr_drives) {
/* Copy the BIOS parameter vector */
vector = (drive == 0) ? BIOS_HD0_PARAMS_ADDR:BIOS_HD1_PARAMS_ADDR;
size = (drive == 0) ? BIOS_HD0_PARAMS_SIZE:BIOS_HD1_PARAMS_SIZE;
if ((s=sys_vircopy(SELF, BIOS_SEG, vector,
SELF, D, (vir_bytes) parv, size)) != OK)
panic(w_name(), "Couldn't read BIOS", s);
vector = (drive == 0) ? BIOS_HD0_PARAMS_ADDR :
BIOS_HD1_PARAMS_ADDR;
size = (drive == 0) ? BIOS_HD0_PARAMS_SIZE :
BIOS_HD1_PARAMS_SIZE;
s=sys_readbios(vector, parv, size);
if (s != OK)
panic(w_name(), "Couldn't read BIOS", s);
/* Calculate the address of the parameters and copy them */
if ((s=sys_vircopy(
SELF, BIOS_SEG, hclick_to_physb(parv[1]) + parv[0],
SELF, D, (phys_bytes) params, 16L))!=OK)
panic(w_name(),"Couldn't copy parameters", s);
/* Calculate the address of the parameters and copy them */
s=sys_readbios(hclick_to_physb(parv[1]) + parv[0],
params, 16L);
if (s != OK)
panic(w_name(),"Couldn't copy parameters", s);
/* Copy the parameters to the structures of the drive */
wn->lcylinders = bp_cylinders(params);
wn->lheads = bp_heads(params);
wn->lsectors = bp_sectors(params);
wn->precomp = bp_precomp(params) >> 2;
/* Copy the parameters to the structures of the drive */
wn->lcylinders = bp_cylinders(params);
wn->lheads = bp_heads(params);
wn->lsectors = bp_sectors(params);
wn->precomp = bp_precomp(params) >> 2;
}
/* Fill in non-BIOS parameters. */