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use C/H/S values from image for the CMOS setup

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This commit is contained in:
Volker Ruppert 2010-12-27 18:37:25 +00:00
parent a8ced63e31
commit 52e4917f52
1 changed files with 16 additions and 20 deletions
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36
bochs/iodev/harddrv.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: harddrv.cc,v 1.231 2010-12-21 21:47:41 vruppert Exp $
// $Id: harddrv.cc,v 1.232 2010-12-27 18:37:25 vruppert Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002-2010 The Bochs Project
@ -165,7 +165,7 @@ void bx_hard_drive_c::init(void)
char ata_name[20];
bx_list_c *base;
BX_DEBUG(("Init $Id: harddrv.cc,v 1.231 2010-12-21 21:47:41 vruppert Exp $"));
BX_DEBUG(("Init $Id: harddrv.cc,v 1.232 2010-12-27 18:37:25 vruppert Exp $"));
for (channel=0; channel<BX_MAX_ATA_CHANNEL; channel++) {
sprintf(ata_name, "ata.%d.resources", channel);
@ -295,7 +295,7 @@ void bx_hard_drive_c::init(void)
disk_size, SIM->get_param_string("journal", base)->getptr());
if (channels[channel].drives[device].hdimage != NULL) {
BX_INFO(("HD on ata%d-%d: '%s' '%s' mode", channel, device,
BX_INFO(("HD on ata%d-%d: '%s', '%s' mode", channel, device,
SIM->get_param_string("path", base)->getptr(),
hdimage_mode_names[image_mode]));
} else {
@ -337,7 +337,6 @@ void bx_hard_drive_c::init(void)
BX_PANIC(("ata%d-%d: geometry autodetection failed", channel, device));
}
BX_HD_THIS channels[channel].drives[device].hdimage->cylinders = cyl;
SIM->get_param_num("cylinders", base)->set(cyl);
} else {
cyl = BX_HD_THIS channels[channel].drives[device].hdimage->cylinders;
heads = BX_HD_THIS channels[channel].drives[device].hdimage->heads;
@ -428,55 +427,52 @@ void bx_hard_drive_c::init(void)
DEV_cmos_set_reg(0x12, 0x00); // start out with: no drive 0, no drive 1
if (BX_DRIVE_IS_HD(0,0)) {
base = (bx_list_c*) SIM->get_param(BXPN_ATA0_MASTER);
// Flag drive type as Fh, use extended CMOS location as real type
DEV_cmos_set_reg(0x12, (DEV_cmos_get_reg(0x12) & 0x0f) | 0xf0);
DEV_cmos_set_reg(0x19, 47); // user definable type
// AMI BIOS: 1st hard disk #cyl low byte
DEV_cmos_set_reg(0x1b, (SIM->get_param_num("cylinders", base)->get() & 0x00ff));
DEV_cmos_set_reg(0x1b, (BX_DRIVE(0,0).hdimage->cylinders & 0x00ff));
// AMI BIOS: 1st hard disk #cyl high byte
DEV_cmos_set_reg(0x1c, (SIM->get_param_num("cylinders", base)->get() & 0xff00) >> 8);
DEV_cmos_set_reg(0x1c, (BX_DRIVE(0,0).hdimage->cylinders & 0xff00) >> 8);
// AMI BIOS: 1st hard disk #heads
DEV_cmos_set_reg(0x1d, (SIM->get_param_num("heads", base)->get()));
DEV_cmos_set_reg(0x1d, BX_DRIVE(0,0).hdimage->heads);
// AMI BIOS: 1st hard disk write precompensation cylinder, low byte
DEV_cmos_set_reg(0x1e, 0xff); // -1
// AMI BIOS: 1st hard disk write precompensation cylinder, high byte
DEV_cmos_set_reg(0x1f, 0xff); // -1
// AMI BIOS: 1st hard disk control byte
DEV_cmos_set_reg(0x20, (0xc0 | ((SIM->get_param_num("heads", base)->get() > 8) << 3)));
DEV_cmos_set_reg(0x20, (0xc0 | ((BX_DRIVE(0,0).hdimage->heads > 8) << 3)));
// AMI BIOS: 1st hard disk landing zone, low byte
DEV_cmos_set_reg(0x21, DEV_cmos_get_reg(0x1b));
// AMI BIOS: 1st hard disk landing zone, high byte
DEV_cmos_set_reg(0x22, DEV_cmos_get_reg(0x1c));
// AMI BIOS: 1st hard disk sectors/track
DEV_cmos_set_reg(0x23, SIM->get_param_num("spt", base)->get());
DEV_cmos_set_reg(0x23, BX_DRIVE(0,0).hdimage->sectors);
}
//set up cmos for second hard drive
if (BX_DRIVE_IS_HD(0,1)) {
base = (bx_list_c*) SIM->get_param(BXPN_ATA0_SLAVE);
BX_DEBUG(("1: I will put 0xf into the second hard disk field"));
// fill in lower 4 bits of 0x12 for second HD
DEV_cmos_set_reg(0x12, (DEV_cmos_get_reg(0x12) & 0xf0) | 0x0f);
DEV_cmos_set_reg(0x1a, 47); // user definable type
// AMI BIOS: 2nd hard disk #cyl low byte
DEV_cmos_set_reg(0x24, (SIM->get_param_num("cylinders", base)->get() & 0x00ff));
DEV_cmos_set_reg(0x24, (BX_DRIVE(0,1).hdimage->cylinders & 0x00ff));
// AMI BIOS: 2nd hard disk #cyl high byte
DEV_cmos_set_reg(0x25, (SIM->get_param_num("cylinders", base)->get() & 0xff00) >> 8);
DEV_cmos_set_reg(0x25, (BX_DRIVE(0,1).hdimage->cylinders & 0xff00) >> 8);
// AMI BIOS: 2nd hard disk #heads
DEV_cmos_set_reg(0x26, (SIM->get_param_num("heads", base)->get()));
DEV_cmos_set_reg(0x26, BX_DRIVE(0,1).hdimage->heads);
// AMI BIOS: 2nd hard disk write precompensation cylinder, low byte
DEV_cmos_set_reg(0x27, 0xff); // -1
// AMI BIOS: 2nd hard disk write precompensation cylinder, high byte
DEV_cmos_set_reg(0x28, 0xff); // -1
// AMI BIOS: 2nd hard disk, 0x80 if heads>8
DEV_cmos_set_reg(0x29, (SIM->get_param_num("heads", base)->get() > 8) ? 0x80 : 0x00);
DEV_cmos_set_reg(0x29, (BX_DRIVE(0,1).hdimage->heads > 8) ? 0x80 : 0x00);
// AMI BIOS: 2nd hard disk landing zone, low byte
DEV_cmos_set_reg(0x2a, DEV_cmos_get_reg(0x24));
// AMI BIOS: 2nd hard disk landing zone, high byte
DEV_cmos_set_reg(0x2b, DEV_cmos_get_reg(0x25));
// AMI BIOS: 2nd hard disk sectors/track
DEV_cmos_set_reg(0x2c, SIM->get_param_num("spt", base)->get());
DEV_cmos_set_reg(0x2c, BX_DRIVE(0,1).hdimage->sectors);
}
DEV_cmos_set_reg(0x39, 0);
@ -487,9 +483,9 @@ void bx_hard_drive_c::init(void)
base = (bx_list_c*) SIM->get_param(ata_name);
if (SIM->get_param_bool("present", base)->get()) {
if (BX_DRIVE_IS_HD(channel,device)) {
Bit16u cylinders = SIM->get_param_num("cylinders", base)->get();
Bit16u heads = SIM->get_param_num("heads", base)->get();
Bit16u spt = SIM->get_param_num("spt", base)->get();
Bit16u cylinders = BX_DRIVE(channel,device).hdimage->cylinders;
Bit16u heads = BX_DRIVE(channel,device).hdimage->heads;
Bit16u spt = BX_DRIVE(channel,device).hdimage->sectors;
Bit8u translation = SIM->get_param_enum("translation", base)->get();
Bit8u reg = 0x39 + channel/2;