tyler.durden/kernel
1
0
Fork 0
mirror of https://github.com/FDOS/kernel.git synced 2025-07-23 22:04:33 +02:00
Code Issues Packages Projects Releases Wiki Activity

remove BIOS assisted LBA translation, not sure its worth including it

Browse Source
This commit is contained in:
Bernd Boeckmann 2023-12-19 16:18:22 +01:00 committed by Kenneth J Davis
parent b33afdbfad
commit a5431d9245
1 changed files with 0 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
kernel/initdisk.c
View File

@ -630,15 +630,6 @@ void DosDefinePartition(struct DriveParamS *driveParam,
nUnits++; nUnits++;
} }
STATIC UWORD BIOS_assisted_LBA_heads(ULONG sectors)
{
if (sectors > 63ul * 128ul * 1024ul) return 255;
else if (sectors > 63ul * 64ul * 1024ul) return 128;
else if (sectors > 63ul * 32ul * 1024ul) return 64;
else if (sectors > 63ul * 16ul * 1024ul) return 32;
else return 16;
}
/* Get the parameters of the hard disk */ /* Get the parameters of the hard disk */
STATIC int LBA_Get_Drive_Parameters(int drive, struct DriveParamS *driveParam, int firstPass) STATIC int LBA_Get_Drive_Parameters(int drive, struct DriveParamS *driveParam, int firstPass)
{ {
@ -757,14 +748,6 @@ StandardBios: /* old way to get parameters */
printf("BIOS reported 0 sectors/track, assuming 63!\n"); printf("BIOS reported 0 sectors/track, assuming 63!\n");
} }
/* If heads < 2, this is probably wrong?!?
Then determine heads from disk size like BIOS assisted LBA does */
if (driveParam->chs.Head < 2) {
driveParam->chs.Head = BIOS_assisted_LBA_heads(driveParam->total_sectors);
if (firstPass && (InitKernelConfig.Verbose >= 0))
printf("BIOS reported <2 heads, assuming %u!\n", driveParam->chs.Head);
}
if (!(driveParam->descflags & DF_LBA)) if (!(driveParam->descflags & DF_LBA))
{ {
driveParam->total_sectors = driveParam->total_sectors =