///////////////////////////////////////////////////////////////////////// // $Id: harddrv.cc,v 1.121 2004-06-19 15:20:12 sshwarts Exp $ ///////////////////////////////////////////////////////////////////////// // // Copyright (C) 2002 MandrakeSoft S.A. // // MandrakeSoft S.A. // 43, rue d'Aboukir // 75002 Paris - France // http://www.linux-mandrake.com/ // http://www.mandrakesoft.com/ // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // Useful docs: // AT Attachment with Packet Interface // working draft by T13 at www.t13.org // Define BX_PLUGGABLE in files that can be compiled into plugins. For // platforms that require a special tag on exported symbols, BX_PLUGGABLE // is used to know when we are exporting symbols and when we are importing. #define BX_PLUGGABLE #include "iodev.h" #if BX_HAVE_SYS_MMAN_H #include #endif #define LOG_THIS theHardDrive-> // WARNING: dangerous options! // These options provoke certain kinds of errors for testing purposes when they // are set to a nonzero value. DO NOT ENABLE THEM when using any disk image // you care about. #define TEST_READ_BEYOND_END 0 #define TEST_WRITE_BEYOND_END 0 #ifdef __GNUC__ # if TEST_READ_BEYOND_END || TEST_WRITE_BEYOND_END # warning BEWARE: Dangerous options are enabled in harddrv.cc. If you are not trying to provoke hard drive errors you should disable them right now. # endif #endif // end of dangerous options. #define INDEX_PULSE_CYCLE 10 #define PACKET_SIZE 12 static unsigned max_multiple_sectors = 0; // was 0x3f static unsigned curr_multiple_sectors = 0; // was 0x3f // some packet handling macros #define EXTRACT_FIELD(arr,byte,start,num_bits) (((arr)[(byte)] >> (start)) & ((1 << (num_bits)) - 1)) #define get_packet_field(c,b,s,n) (EXTRACT_FIELD((BX_SELECTED_CONTROLLER((c)).buffer),(b),(s),(n))) #define get_packet_byte(c,b) (BX_SELECTED_CONTROLLER((c)).buffer[(b)]) #define get_packet_word(c,b) (((uint16)BX_SELECTED_CONTROLLER((c)).buffer[(b)] << 8) | BX_SELECTED_CONTROLLER((c)).buffer[(b)+1]) #define BX_CONTROLLER(c,a) (BX_HD_THIS channels[(c)].drives[(a)]).controller #define BX_DRIVE(c,a) (BX_HD_THIS channels[(c)].drives[(a)]) #define BX_DRIVE_IS_PRESENT(c,a) (BX_HD_THIS channels[(c)].drives[(a)].device_type != IDE_NONE) #define BX_DRIVE_IS_HD(c,a) (BX_HD_THIS channels[(c)].drives[(a)].device_type == IDE_DISK) #define BX_DRIVE_IS_CD(c,a) (BX_HD_THIS channels[(c)].drives[(a)].device_type == IDE_CDROM) #define BX_MASTER_IS_PRESENT(c) BX_DRIVE_IS_PRESENT((c),0) #define BX_SLAVE_IS_PRESENT(c) BX_DRIVE_IS_PRESENT((c),1) #define BX_ANY_IS_PRESENT(c) (BX_DRIVE_IS_PRESENT((c),0) || BX_DRIVE_IS_PRESENT((c),1)) #define BX_SELECTED_CONTROLLER(c) (BX_CONTROLLER((c),BX_HD_THIS channels[(c)].drive_select)) #define BX_SELECTED_DRIVE(c) (BX_DRIVE((c),BX_HD_THIS channels[(c)].drive_select)) #define BX_MASTER_SELECTED(c) (!BX_HD_THIS channels[(c)].drive_select) #define BX_SLAVE_SELECTED(c) (BX_HD_THIS channels[(c)].drive_select) #define BX_SELECTED_IS_PRESENT(c) (BX_DRIVE_IS_PRESENT((c),BX_SLAVE_SELECTED((c)))) #define BX_SELECTED_IS_HD(c) (BX_DRIVE_IS_HD((c),BX_SLAVE_SELECTED((c)))) #define BX_SELECTED_IS_CD(c) (BX_DRIVE_IS_CD((c),BX_SLAVE_SELECTED((c)))) #define BX_SELECTED_MODEL(c) (BX_HD_THIS channels[(c)].drives[BX_HD_THIS channels[(c)].drive_select].model_no) #define BX_SELECTED_TYPE_STRING(channel) ((BX_SELECTED_IS_CD(channel)) ? "CD-ROM" : "DISK") #define WRITE_FEATURES(c,a) do { uint8 _a = a; BX_CONTROLLER((c),0).features = _a; BX_CONTROLLER((c),1).features = _a; } while(0) #define WRITE_SECTOR_COUNT(c,a) do { uint8 _a = a; BX_CONTROLLER((c),0).sector_count = _a; BX_CONTROLLER((c),1).sector_count = _a; } while(0) #define WRITE_SECTOR_NUMBER(c,a) do { uint8 _a = a; BX_CONTROLLER((c),0).sector_no = _a; BX_CONTROLLER((c),1).sector_no = _a; } while(0) #define WRITE_CYLINDER_LOW(c,a) do { uint8 _a = a; BX_CONTROLLER((c),0).cylinder_no = (BX_CONTROLLER((c),0).cylinder_no & 0xff00) | _a; BX_CONTROLLER((c),1).cylinder_no = (BX_CONTROLLER((c),1).cylinder_no & 0xff00) | _a; } while(0) #define WRITE_CYLINDER_HIGH(c,a) do { uint16 _a = a; BX_CONTROLLER((c),0).cylinder_no = (_a << 8) | (BX_CONTROLLER((c),0).cylinder_no & 0xff); BX_CONTROLLER((c),1).cylinder_no = (_a << 8) | (BX_CONTROLLER((c),1).cylinder_no & 0xff); } while(0) #define WRITE_HEAD_NO(c,a) do { uint8 _a = a; BX_CONTROLLER((c),0).head_no = _a; BX_CONTROLLER((c),1).head_no = _a; } while(0) #define WRITE_LBA_MODE(c,a) do { uint8 _a = a; BX_CONTROLLER((c),0).lba_mode = _a; BX_CONTROLLER((c),1).lba_mode = _a; } while(0) bx_hard_drive_c *theHardDrive = NULL; int libharddrv_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[]) { theHardDrive = new bx_hard_drive_c (); bx_devices.pluginHardDrive = theHardDrive; BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theHardDrive, BX_PLUGIN_HARDDRV); return(0); // Success } void libharddrv_LTX_plugin_fini(void) { } bx_hard_drive_c::bx_hard_drive_c(void) { #if DLL_HD_SUPPORT # error code must be fixed to use DLL_HD_SUPPORT and 4 ata channels #endif for (Bit8u channel=0; channelget() == 1) { BX_HD_THIS channels[channel].ioaddr1 = bx_options.ata[channel].Oioaddr1->get(); BX_HD_THIS channels[channel].ioaddr2 = bx_options.ata[channel].Oioaddr2->get(); BX_HD_THIS channels[channel].irq = bx_options.ata[channel].Oirq->get(); // Coherency check if ( (BX_HD_THIS channels[channel].ioaddr1 == 0) || (BX_HD_THIS channels[channel].ioaddr2 == 0) || (BX_HD_THIS channels[channel].irq == 0) ) { BX_PANIC(("incoherency for ata channel %d: io1=0x%x, io2=%x, irq=%d", channel, BX_HD_THIS channels[channel].ioaddr1, BX_HD_THIS channels[channel].ioaddr2, BX_HD_THIS channels[channel].irq)); } } else { BX_HD_THIS channels[channel].ioaddr1 = 0; BX_HD_THIS channels[channel].ioaddr2 = 0; BX_HD_THIS channels[channel].irq = 0; } } for (channel=0; channelget()) { continue; } // Make model string strncpy((char*)BX_HD_THIS channels[channel].drives[device].model_no, bx_options.atadevice[channel][device].Omodel->getptr(), 40); while (strlen((char *)BX_HD_THIS channels[channel].drives[device].model_no) < 40) { strcat ((char*)BX_HD_THIS channels[channel].drives[device].model_no, " "); } if (bx_options.atadevice[channel][device].Otype->get() == BX_ATA_DEVICE_DISK) { BX_DEBUG(( "Hard-Disk on target %d/%d",channel,device)); BX_HD_THIS channels[channel].drives[device].device_type = IDE_DISK; sprintf(sbtext, "HD:%d-%s", channel, device?"S":"M"); BX_HD_THIS channels[channel].drives[device].statusbar_id = bx_gui->register_statusitem(sbtext); int cyl = bx_options.atadevice[channel][device].Ocylinders->get (); int heads = bx_options.atadevice[channel][device].Oheads->get (); int spt = bx_options.atadevice[channel][device].Ospt->get (); Bit64u disk_size = (Bit64u)cyl * heads * spt * 512; /* instantiate the right class */ switch (bx_options.atadevice[channel][device].Omode->get()) { case BX_ATA_MODE_FLAT: BX_INFO(("HD on ata%d-%d: '%s' 'flat' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new default_image_t(); break; case BX_ATA_MODE_CONCAT: BX_INFO(("HD on ata%d-%d: '%s' 'concat' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new concat_image_t(); break; #if EXTERNAL_DISK_SIMULATOR case BX_ATA_MODE_EXTDISKSIM: BX_INFO(("HD on ata%d-%d: '%s' 'External Simulator' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new EXTERNAL_DISK_SIMULATOR_CLASS(); break; #endif //EXTERNAL_DISK_SIMULATOR #if DLL_HD_SUPPORT case BX_ATA_MODE_DLL_HD: BX_INFO(("HD on ata%d-%d: '%s' 'dll' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new dll_image_t(); break; #endif //DLL_HD_SUPPORT case BX_ATA_MODE_SPARSE: BX_INFO(("HD on ata%d-%d: '%s' 'sparse' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new sparse_image_t(); break; case BX_ATA_MODE_VMWARE3: BX_INFO(("HD on ata%d-%d: '%s' 'vmware3' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new vmware3_image_t(); break; #if 0 case BX_ATA_MODE_SPLIT: BX_INFO(("HD on ata%d-%d: '%s' 'split' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new split_image_t(); break; #endif case BX_ATA_MODE_UNDOABLE: BX_INFO(("HD on ata%d-%d: '%s' 'undoable' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new undoable_image_t(disk_size, bx_options.atadevice[channel][device].Ojournal->getptr()); break; case BX_ATA_MODE_GROWING: BX_INFO(("HD on ata%d-%d: '%s' 'growing' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new growing_image_t(disk_size); break; case BX_ATA_MODE_VOLATILE: BX_INFO(("HD on ata%d-%d: '%s' 'volatile' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new volatile_image_t(disk_size, bx_options.atadevice[channel][device].Ojournal->getptr()); break; #if 0 #if BX_COMPRESSED_HD_SUPPORT case BX_ATA_MODE_Z_UNDOABLE: BX_PANIC(("z-undoable disk support not implemented")); BX_INFO(("HD on ata%d-%d: '%s' 'z-undoable' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new z_undoable_image_t(disk_size, bx_options.atadevice[channel][device].Ojournal->getptr()); break; case BX_ATA_MODE_Z_VOLATILE: BX_PANIC(("z-volatile disk support not implemented")); BX_INFO(("HD on ata%d-%d: '%s' 'z-volatile' mode ", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); channels[channel].drives[device].hard_drive = new z_volatile_image_t(disk_size, bx_options.atadevice[channel][device].Ojournal->getptr()); break; #endif //BX_COMPRESSED_HD_SUPPORT #endif default: BX_PANIC(("HD on ata%d-%d: '%s' unsupported HD mode : %s", channel, device, bx_options.atadevice[channel][device].Opath->getptr (), atadevice_mode_names[bx_options.atadevice[channel][device].Omode->get()])); break; } BX_HD_THIS channels[channel].drives[device].hard_drive->cylinders = cyl; BX_HD_THIS channels[channel].drives[device].hard_drive->heads = heads; BX_HD_THIS channels[channel].drives[device].hard_drive->sectors = spt; if (cyl == 0 || heads == 0 || spt == 0) { BX_PANIC(("ata%d/%d cannot have zero cylinders, heads, or sectors/track", channel, device)); } /* open hard drive image file */ if ((BX_HD_THIS channels[channel].drives[device].hard_drive->open(bx_options.atadevice[channel][device].Opath->getptr ())) < 0) { BX_PANIC(("ata%d-%d: could not open hard drive image file '%s'", channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); } } else if (bx_options.atadevice[channel][device].Otype->get() == BX_ATA_DEVICE_CDROM) { BX_DEBUG(( "CDROM on target %d/%d",channel,device)); BX_HD_THIS channels[channel].drives[device].device_type = IDE_CDROM; BX_HD_THIS channels[channel].drives[device].cdrom.locked = 0; BX_HD_THIS channels[channel].drives[device].sense.sense_key = SENSE_NONE; BX_HD_THIS channels[channel].drives[device].sense.asc = 0; BX_HD_THIS channels[channel].drives[device].sense.ascq = 0; sprintf(sbtext, "CD:%d-%s", channel, device?"S":"M"); BX_HD_THIS channels[channel].drives[device].statusbar_id = bx_gui->register_statusitem(sbtext); // Check bit fields BX_CONTROLLER(channel,device).sector_count = 0; BX_CONTROLLER(channel,device).interrupt_reason.c_d = 1; if (BX_CONTROLLER(channel,device).sector_count != 0x01) BX_PANIC(("interrupt reason bit field error")); BX_CONTROLLER(channel,device).sector_count = 0; BX_CONTROLLER(channel,device).interrupt_reason.i_o = 1; if (BX_CONTROLLER(channel,device).sector_count != 0x02) BX_PANIC(("interrupt reason bit field error")); BX_CONTROLLER(channel,device).sector_count = 0; BX_CONTROLLER(channel,device).interrupt_reason.rel = 1; if (BX_CONTROLLER(channel,device).sector_count != 0x04) BX_PANIC(("interrupt reason bit field error")); BX_CONTROLLER(channel,device).sector_count = 0; BX_CONTROLLER(channel,device).interrupt_reason.tag = 3; if (BX_CONTROLLER(channel,device).sector_count != 0x18) BX_PANIC(("interrupt reason bit field error")); BX_CONTROLLER(channel,device).sector_count = 0; // allocate low level driver #ifdef LOWLEVEL_CDROM BX_HD_THIS channels[channel].drives[device].cdrom.cd = new LOWLEVEL_CDROM(bx_options.atadevice[channel][device].Opath->getptr ()); BX_INFO(("CD on ata%d-%d: '%s'",channel, device, bx_options.atadevice[channel][device].Opath->getptr ())); if (bx_options.atadevice[channel][device].Ostatus->get () == BX_INSERTED) { if (BX_HD_THIS channels[channel].drives[device].cdrom.cd->insert_cdrom()) { BX_INFO(( "Media present in CD-ROM drive")); BX_HD_THIS channels[channel].drives[device].cdrom.ready = 1; BX_HD_THIS channels[channel].drives[device].cdrom.capacity = BX_HD_THIS channels[channel].drives[device].cdrom.cd->capacity(); } else { BX_INFO(( "Could not locate CD-ROM, continuing with media not present")); BX_HD_THIS channels[channel].drives[device].cdrom.ready = 0; bx_options.atadevice[channel][device].Ostatus->set(BX_EJECTED); } } else { #endif BX_INFO(( "Media not present in CD-ROM drive" )); BX_HD_THIS channels[channel].drives[device].cdrom.ready = 0; #ifdef LOWLEVEL_CDROM } #endif } } } #if BX_PDC20230C_VLBIDE_SUPPORT BX_HD_THIS pdc20230c.prog_mode = 0; BX_HD_THIS pdc20230c.prog_count = 0; BX_HD_THIS pdc20230c.p1f3_value = 0; BX_HD_THIS pdc20230c.p1f4_value = 0; #endif // generate CMOS values for hard drive if not using a CMOS image if (!bx_options.cmos.OcmosImage->get ()) { DEV_cmos_set_reg(0x12, 0x00); // start out with: no drive 0, no drive 1 if (BX_DRIVE_IS_HD(0,0)) { // 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, (bx_options.atadevice[0][0].Ocylinders->get () & 0x00ff)); // AMI BIOS: 1st hard disk #cyl high byte DEV_cmos_set_reg(0x1c, (bx_options.atadevice[0][0].Ocylinders->get () & 0xff00) >> 8); // AMI BIOS: 1st hard disk #heads DEV_cmos_set_reg(0x1d, (bx_options.atadevice[0][0].Oheads->get ())); // 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 | ((bx_options.atadevice[0][0].Oheads->get () > 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, bx_options.atadevice[0][0].Ospt->get ()); } //set up cmos for second hard drive if (BX_DRIVE_IS_HD(0,1)) { 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, (bx_options.atadevice[0][1].Ocylinders->get () & 0x00ff)); // AMI BIOS: 2nd hard disk #cyl high byte DEV_cmos_set_reg(0x25, (bx_options.atadevice[0][1].Ocylinders->get () & 0xff00) >> 8); // AMI BIOS: 2nd hard disk #heads DEV_cmos_set_reg(0x26, (bx_options.atadevice[0][1].Oheads->get ())); // 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, (bx_options.atadevice[0][1].Oheads->get () > 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, bx_options.atadevice[0][1].Ospt->get ()); } DEV_cmos_set_reg(0x39, 0); DEV_cmos_set_reg(0x3a, 0); for (channel=0; channelget()) { if (BX_DRIVE_IS_HD(channel,device)) { Bit16u cylinders = bx_options.atadevice[channel][device].Ocylinders->get(); Bit16u heads = bx_options.atadevice[channel][device].Oheads->get(); Bit16u spt = bx_options.atadevice[channel][device].Ospt->get(); Bit8u translation = bx_options.atadevice[channel][device].Otranslation->get(); Bit8u reg = 0x39 + channel/2; Bit8u bitshift = 2 * (device+(2 * (channel%2))); // Find the right translation if autodetect if (translation == BX_ATA_TRANSLATION_AUTO) { if((cylinders <= 1024) && (heads <= 16) && (spt <= 63)) { translation = BX_ATA_TRANSLATION_NONE; } else if (((Bit32u)cylinders * (Bit32u)heads) <= 131072) { translation = BX_ATA_TRANSLATION_LARGE; } else translation = BX_ATA_TRANSLATION_LBA; BX_INFO(("translation on ata%d-%d set to '%s'",channel, device, translation==BX_ATA_TRANSLATION_NONE?"none": translation==BX_ATA_TRANSLATION_LARGE?"large": "lba")); } // FIXME we should test and warn // - if LBA and spt != 63 // - if RECHS and heads != 16 // - if NONE and size > 1024*16*SPT blocks // - if LARGE and size > 8192*16*SPT blocks // - if RECHS and size > 1024*240*SPT blocks // - if LBA and size > 1024*255*63, not that we can do much about it switch(translation) { case BX_ATA_TRANSLATION_NONE: DEV_cmos_set_reg(reg, DEV_cmos_get_reg(reg) | (0 << bitshift)); break; case BX_ATA_TRANSLATION_LBA: DEV_cmos_set_reg(reg, DEV_cmos_get_reg(reg) | (1 << bitshift)); break; case BX_ATA_TRANSLATION_LARGE: DEV_cmos_set_reg(reg, DEV_cmos_get_reg(reg) | (2 << bitshift)); break; case BX_ATA_TRANSLATION_RECHS: DEV_cmos_set_reg(reg, DEV_cmos_get_reg(reg) | (3 << bitshift)); break; } } } } } // Set the "non-extended" boot device. This will default to DISKC if cdrom if ( bx_options.Obootdrive->get () != BX_BOOT_FLOPPYA) { // system boot sequence C:, A: DEV_cmos_set_reg(0x2d, DEV_cmos_get_reg(0x2d) & 0xdf); } else { // 'a' // system boot sequence A:, C: DEV_cmos_set_reg(0x2d, DEV_cmos_get_reg(0x2d) | 0x20); } // Set the "extended" boot device, byte 0x3D (needed for cdrom booting) if ( bx_options.Obootdrive->get () == BX_BOOT_FLOPPYA) { // system boot sequence A: DEV_cmos_set_reg(0x3d, 0x01); BX_INFO(("Boot device will be 'a'")); } else if ( bx_options.Obootdrive->get () == BX_BOOT_DISKC) { // system boot sequence C: DEV_cmos_set_reg(0x3d, 0x02); BX_INFO(("Boot device will be 'c'")); } else if ( bx_options.Obootdrive->get () == BX_BOOT_CDROM) { // system boot sequence cdrom DEV_cmos_set_reg(0x3d, 0x03); BX_INFO(("Boot device will be 'cdrom'")); } // Set the signature check flag in cmos, inverted for compatibility DEV_cmos_set_reg(0x38, bx_options.OfloppySigCheck->get()); BX_INFO(("Floppy boot signature check is %sabled", bx_options.OfloppySigCheck->get() ? "dis" : "en")); } // register timer for HD/CD i/o light if (BX_HD_THIS iolight_timer_index == BX_NULL_TIMER_HANDLE) { BX_HD_THIS iolight_timer_index = DEV_register_timer(this, iolight_timer_handler, 100000, 0,0, "HD/CD i/o light"); } } void bx_hard_drive_c::reset(unsigned type) { for (unsigned channel=0; channeliolight_timer(); } void bx_hard_drive_c::iolight_timer() { for (unsigned channel=0; channel 0) { if (--BX_HD_THIS channels[channel].drives[device].iolight_counter) bx_pc_system.activate_timer( BX_HD_THIS iolight_timer_index, 100000, 0 ); else bx_gui->statusbar_setitem(BX_HD_THIS channels[channel].drives[device].statusbar_id, 0); } } } } #define GOTO_RETURN_VALUE if(io_len==4){\ goto return_value32;\ }\ else if(io_len==2){\ value16=(Bit16u)value32;\ goto return_value16;\ }\ else{\ value8=(Bit8u)value32;\ goto return_value8;\ } // static IO port read callback handler // redirects to non-static class handler to avoid virtual functions Bit32u bx_hard_drive_c::read_handler(void *this_ptr, Bit32u address, unsigned io_len) { #if !BX_USE_HD_SMF bx_hard_drive_c *class_ptr = (bx_hard_drive_c *) this_ptr; return( class_ptr->read(address, io_len) ); } Bit32u bx_hard_drive_c::read(Bit32u address, unsigned io_len) { #else UNUSED(this_ptr); #endif // !BX_USE_HD_SMF Bit8u value8; Bit16u value16; Bit32u value32; Bit8u channel = BX_MAX_ATA_CHANNEL; Bit32u port = 0xff; // undefined for (channel=0; channel 0x03f7)) { BX_PANIC(("read: unable to find ATA channel, ioport=0x%04x", address)); } else { channel = 0; port = address - 0x03e0; } } #if BX_PDC20230C_VLBIDE_SUPPORT // pdc20230c is only available for first ata channel if (channel == 0) { // Detect the switch to programming mode if (!BX_HD_THIS pdc20230c.prog_mode) { switch (port) { case 0x02: if ((BX_HD_THIS pdc20230c.prog_count == 0) || (BX_HD_THIS pdc20230c.prog_count > 2)) { BX_HD_THIS pdc20230c.prog_count++; } else { BX_HD_THIS pdc20230c.prog_count=0; } break; case 0x16: if ((BX_HD_THIS pdc20230c.prog_count == 1) || (BX_HD_THIS pdc20230c.prog_count == 2)) { BX_HD_THIS pdc20230c.prog_count++; } else { BX_HD_THIS pdc20230c.prog_count=0; } break; default: BX_HD_THIS pdc20230c.prog_count=0; } if (BX_HD_THIS pdc20230c.prog_count == 5) { BX_HD_THIS pdc20230c.prog_mode = 1; BX_SELECTED_CONTROLLER(channel).sector_count &= 0x7f; BX_INFO(("Promise VLB-IDE DC2300: Switching to Programming mode")); } } // Returns value when in programming mode if (BX_HD_THIS pdc20230c.prog_mode) { switch (port) { case 0x05: // Leave programming mode BX_HD_THIS pdc20230c.prog_mode = 0; BX_INFO(("Promise VLB-IDE DC2300: Leaving Programming mode")); // Value will be sent be normal code break; case 0x03: // Special programming register value32 = BX_HD_THIS pdc20230c.p1f3_value; GOTO_RETURN_VALUE ; break; case 0x04: // Special programming register value32 = BX_HD_THIS pdc20230c.p1f4_value; GOTO_RETURN_VALUE ; break; } } } #endif switch (port) { case 0x00: // hard disk data (16bit) 0x1f0 if (BX_SELECTED_CONTROLLER(channel).status.drq == 0) { BX_ERROR(("IO read(0x%04x) with drq == 0: last command was %02xh", address, (unsigned) BX_SELECTED_CONTROLLER(channel).current_command)); return(0); } BX_DEBUG(("IO read(0x%04x): current command is %02xh", address, (unsigned) BX_SELECTED_CONTROLLER(channel).current_command)); switch (BX_SELECTED_CONTROLLER(channel).current_command) { case 0x20: // READ SECTORS, with retries case 0x21: // READ SECTORS, without retries if (BX_SELECTED_CONTROLLER(channel).buffer_index >= 512) BX_PANIC(("IO read(0x%04x): buffer_index >= 512", address)); #if BX_SupportRepeatSpeedups if (DEV_bulk_io_quantum_requested()) { unsigned transferLen, quantumsMax; quantumsMax = (512 - BX_SELECTED_CONTROLLER(channel).buffer_index) / io_len; if ( quantumsMax == 0) BX_PANIC(("IO read(0x%04x): not enough space for read", address)); DEV_bulk_io_quantum_transferred() = DEV_bulk_io_quantum_requested(); if (quantumsMax < DEV_bulk_io_quantum_transferred()) DEV_bulk_io_quantum_transferred() = quantumsMax; transferLen = io_len * DEV_bulk_io_quantum_transferred(); memcpy((Bit8u*) DEV_bulk_io_host_addr(), &BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index], transferLen); DEV_bulk_io_host_addr() += transferLen; BX_SELECTED_CONTROLLER(channel).buffer_index += transferLen; value32 = 0; // Value returned not important; } else #endif { value32 = 0L; switch(io_len){ case 4: value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+3] << 24); value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+2] << 16); case 2: value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+1] << 8); value32 |= BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index]; } BX_SELECTED_CONTROLLER(channel).buffer_index += io_len; } // if buffer completely read if (BX_SELECTED_CONTROLLER(channel).buffer_index >= 512) { // update sector count, sector number, cylinder, // drive, head, status // if there are more sectors, read next one in... // BX_SELECTED_CONTROLLER(channel).buffer_index = 0; increment_address(channel); BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; if (bx_options.OnewHardDriveSupport->get ()) BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; else BX_SELECTED_CONTROLLER(channel).status.seek_complete = 0; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; if (BX_SELECTED_CONTROLLER(channel).sector_count==0) { BX_SELECTED_CONTROLLER(channel).status.drq = 0; } else { /* read next one into controller buffer */ off_t logical_sector; off_t ret; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; #if TEST_READ_BEYOND_END==1 BX_SELECTED_CONTROLLER(channel).cylinder_no += 100000; #endif if (!calculate_logical_address(channel, &logical_sector)) { BX_ERROR(("multi-sector read reached invalid sector %lu, aborting", (unsigned long)logical_sector)); command_aborted (channel, BX_SELECTED_CONTROLLER(channel).current_command); GOTO_RETURN_VALUE ; } ret = BX_SELECTED_DRIVE(channel).hard_drive->lseek(logical_sector * 512, SEEK_SET); if (ret < 0) { BX_ERROR(("could not lseek() hard drive image file")); command_aborted (channel, BX_SELECTED_CONTROLLER(channel).current_command); GOTO_RETURN_VALUE ; } /* set status bar conditions for device */ if (!BX_SELECTED_DRIVE(channel).iolight_counter) bx_gui->statusbar_setitem(BX_SELECTED_DRIVE(channel).statusbar_id, 1); BX_SELECTED_DRIVE(channel).iolight_counter = 5; bx_pc_system.activate_timer( BX_HD_THIS iolight_timer_index, 100000, 0 ); ret = BX_SELECTED_DRIVE(channel).hard_drive->read((bx_ptr_t) BX_SELECTED_CONTROLLER(channel).buffer, 512); if (ret < 512) { BX_ERROR(("logical sector was %lu", (unsigned long)logical_sector)); BX_ERROR(("could not read() hard drive image file at byte %lu", (unsigned long)logical_sector*512)); command_aborted (channel, BX_SELECTED_CONTROLLER(channel).current_command); GOTO_RETURN_VALUE ; } BX_SELECTED_CONTROLLER(channel).buffer_index = 0; raise_interrupt(channel); } } GOTO_RETURN_VALUE ; break; case 0xec: // IDENTIFY DEVICE case 0xa1: if (bx_options.OnewHardDriveSupport->get ()) { unsigned index; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; index = BX_SELECTED_CONTROLLER(channel).buffer_index; value32 = BX_SELECTED_CONTROLLER(channel).buffer[index]; index++; if (io_len >= 2) { value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[index] << 8); index++; } if (io_len == 4) { value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[index] << 16); value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[index+1] << 24); index += 2; } BX_SELECTED_CONTROLLER(channel).buffer_index = index; if (BX_SELECTED_CONTROLLER(channel).buffer_index >= 512) { BX_SELECTED_CONTROLLER(channel).status.drq = 0; if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("Read all drive ID Bytes ...")); } GOTO_RETURN_VALUE; } else BX_PANIC(("IO read(0x%04x): current command is %02xh", address, (unsigned) BX_SELECTED_CONTROLLER(channel).current_command)); case 0xa0: { unsigned index = BX_SELECTED_CONTROLLER(channel).buffer_index; unsigned increment = 0; // Load block if necessary if (index >= 2048) { if (index > 2048) BX_PANIC(("index > 2048 : 0x%x",index)); switch (BX_SELECTED_DRIVE(channel).atapi.command) { case 0x28: // read (10) case 0xa8: // read (12) #ifdef LOWLEVEL_CDROM if (!BX_SELECTED_DRIVE(channel).cdrom.ready) { BX_PANIC(("Read with CDROM not ready")); } /* set status bar conditions for device */ if (!BX_SELECTED_DRIVE(channel).iolight_counter) bx_gui->statusbar_setitem(BX_SELECTED_DRIVE(channel).statusbar_id, 1); BX_SELECTED_DRIVE(channel).iolight_counter = 5; bx_pc_system.activate_timer( BX_HD_THIS iolight_timer_index, 100000, 0 ); BX_SELECTED_DRIVE(channel).cdrom.cd->read_block(BX_SELECTED_CONTROLLER(channel).buffer, BX_SELECTED_DRIVE(channel).cdrom.next_lba); BX_SELECTED_DRIVE(channel).cdrom.next_lba++; BX_SELECTED_DRIVE(channel).cdrom.remaining_blocks--; if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) if (!BX_SELECTED_DRIVE(channel).cdrom.remaining_blocks) BX_INFO(("Last READ block loaded {CDROM}")); else BX_INFO(("READ block loaded (%d remaining) {CDROM}", BX_SELECTED_DRIVE(channel).cdrom.remaining_blocks)); // one block transfered, start at beginning index = 0; #else BX_PANIC(("Read with no LOWLEVEL_CDROM")); #endif break; default: // no need to load a new block break; } } value32 = BX_SELECTED_CONTROLLER(channel).buffer[index+increment]; increment++; if (io_len >= 2) { value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[index+increment] << 8); increment++; } if (io_len == 4) { value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[index+increment] << 16); value32 |= (BX_SELECTED_CONTROLLER(channel).buffer[index+increment+1] << 24); increment += 2; } BX_SELECTED_CONTROLLER(channel).buffer_index = index + increment; BX_SELECTED_CONTROLLER(channel).drq_index += increment; if (BX_SELECTED_CONTROLLER(channel).drq_index >= (unsigned)BX_SELECTED_DRIVE(channel).atapi.drq_bytes) { BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).drq_index = 0; BX_SELECTED_DRIVE(channel).atapi.total_bytes_remaining -= BX_SELECTED_DRIVE(channel).atapi.drq_bytes; if (BX_SELECTED_DRIVE(channel).atapi.total_bytes_remaining > 0) { // one or more blocks remaining (works only for single block commands) if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("PACKET drq bytes read")); BX_SELECTED_CONTROLLER(channel).interrupt_reason.i_o = 1; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.c_d = 0; // set new byte count if last block if (BX_SELECTED_DRIVE(channel).atapi.total_bytes_remaining < BX_SELECTED_CONTROLLER(channel).byte_count) { BX_SELECTED_CONTROLLER(channel).byte_count = BX_SELECTED_DRIVE(channel).atapi.total_bytes_remaining; } BX_SELECTED_DRIVE(channel).atapi.drq_bytes = BX_SELECTED_CONTROLLER(channel).byte_count; raise_interrupt(channel); } else { // all bytes read if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("PACKET all bytes read")); BX_SELECTED_CONTROLLER(channel).interrupt_reason.i_o = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.c_d = 1; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.rel = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; raise_interrupt(channel); } } GOTO_RETURN_VALUE; break; } // List all the read operations that are defined in the ATA/ATAPI spec // that we don't support. Commands that are listed here will cause a // BX_ERROR, which is non-fatal, and the command will be aborted. case 0x08: BX_ERROR(("read cmd 0x08 (DEVICE RESET) not supported")); command_aborted(channel, 0x08); break; case 0x10: BX_ERROR(("read cmd 0x10 (RECALIBRATE) not supported")); command_aborted(channel, 0x10); break; case 0x22: BX_ERROR(("read cmd 0x22 (READ LONG) not supported")); command_aborted(channel, 0x22); break; case 0x23: BX_ERROR(("read cmd 0x23 (READ LONG NO RETRY) not supported")); command_aborted(channel, 0x23); break; case 0x24: BX_ERROR(("read cmd 0x24 (READ SECTORS EXT) not supported")); command_aborted(channel, 0x24); break; case 0x25: BX_ERROR(("read cmd 0x25 (READ DMA EXT) not supported")); command_aborted(channel, 0x25); break; case 0x26: BX_ERROR(("read cmd 0x26 (READ DMA QUEUED EXT) not supported")); command_aborted(channel, 0x26); break; case 0x27: BX_ERROR(("read cmd 0x27 (READ NATIVE MAX ADDRESS EXT) not supported")); command_aborted(channel, 0x27); break; case 0x29: BX_ERROR(("read cmd 0x29 (READ MULTIPLE EXT) not supported")); command_aborted(channel, 0x29); break; case 0x2A: BX_ERROR(("read cmd 0x2A (READ STREAM DMA) not supported")); command_aborted(channel, 0x2A); break; case 0x2B: BX_ERROR(("read cmd 0x2B (READ STREAM PIO) not supported")); command_aborted(channel, 0x2B); break; case 0x2F: BX_ERROR(("read cmd 0x2F (READ LOG EXT) not supported")); command_aborted(channel, 0x2F); break; case 0x30: BX_ERROR(("read cmd 0x30 (WRITE SECTORS) not supported")); command_aborted(channel, 0x30); break; case 0x31: BX_ERROR(("read cmd 0x31 (WRITE SECTORS NO RETRY) not supported")); command_aborted(channel, 0x31); break; case 0x32: BX_ERROR(("read cmd 0x32 (WRITE LONG) not supported")); command_aborted(channel, 0x32); break; case 0x33: BX_ERROR(("read cmd 0x33 (WRITE LONG NO RETRY) not supported")); command_aborted(channel, 0x33); break; case 0x34: BX_ERROR(("read cmd 0x34 (WRITE SECTORS EXT) not supported")); command_aborted(channel, 0x34); break; case 0x35: BX_ERROR(("read cmd 0x35 (WRITE DMA EXT) not supported")); command_aborted(channel, 0x35); break; case 0x36: BX_ERROR(("read cmd 0x36 (WRITE DMA QUEUED EXT) not supported")); command_aborted(channel, 0x36); break; case 0x37: BX_ERROR(("read cmd 0x37 (SET MAX ADDRESS EXT) not supported")); command_aborted(channel, 0x37); break; case 0x38: BX_ERROR(("read cmd 0x38 (CFA WRITE SECTORS W/OUT ERASE) not supported")); command_aborted(channel, 0x38); break; case 0x39: BX_ERROR(("read cmd 0x39 (WRITE MULTIPLE EXT) not supported")); command_aborted(channel, 0x39); break; case 0x3A: BX_ERROR(("read cmd 0x3A (WRITE STREAM DMA) not supported")); command_aborted(channel, 0x3A); break; case 0x3B: BX_ERROR(("read cmd 0x3B (WRITE STREAM PIO) not supported")); command_aborted(channel, 0x3B); break; case 0x3F: BX_ERROR(("read cmd 0x3F (WRITE LOG EXT) not supported")); command_aborted(channel, 0x3F); break; case 0x40: BX_ERROR(("read cmd 0x40 (READ VERIFY SECTORS) not supported")); command_aborted(channel, 0x40); break; case 0x41: BX_ERROR(("read cmd 0x41 (READ VERIFY SECTORS NO RETRY) not supported")); command_aborted(channel, 0x41); break; case 0x42: BX_ERROR(("read cmd 0x42 (READ VERIFY SECTORS EXT) not supported")); command_aborted(channel, 0x42); break; case 0x50: BX_ERROR(("read cmd 0x50 (FORMAT TRACK) not supported")); command_aborted(channel, 0x50); break; case 0x51: BX_ERROR(("read cmd 0x51 (CONFIGURE STREAM) not supported")); command_aborted(channel, 0x51); break; case 0x70: BX_ERROR(("read cmd 0x70 (SEEK) not supported")); command_aborted(channel, 0x70); break; case 0x87: BX_ERROR(("read cmd 0x87 (CFA TRANSLATE SECTOR) not supported")); command_aborted(channel, 0x87); break; case 0x90: BX_ERROR(("read cmd 0x90 (EXECUTE DEVICE DIAGNOSTIC) not supported")); command_aborted(channel, 0x90); break; case 0x91: BX_ERROR(("read cmd 0x91 (INITIALIZE DEVICE PARAMETERS) not supported")); command_aborted(channel, 0x91); break; case 0x92: BX_ERROR(("read cmd 0x92 (DOWNLOAD MICROCODE) not supported")); command_aborted(channel, 0x92); break; case 0x94: BX_ERROR(("read cmd 0x94 (STANDBY IMMEDIATE) not supported")); command_aborted(channel, 0x94); break; case 0x95: BX_ERROR(("read cmd 0x95 (IDLE IMMEDIATE) not supported")); command_aborted(channel, 0x95); break; case 0x96: BX_ERROR(("read cmd 0x96 (STANDBY) not supported")); command_aborted(channel, 0x96); break; case 0x97: BX_ERROR(("read cmd 0x97 (IDLE) not supported")); command_aborted(channel, 0x97); break; case 0x98: BX_ERROR(("read cmd 0x98 (CHECK POWER MODE) not supported")); command_aborted(channel, 0x98); break; case 0x99: BX_ERROR(("read cmd 0x99 (SLEEP) not supported")); command_aborted(channel, 0x99); break; case 0xA2: BX_ERROR(("read cmd 0xA2 (SERVICE) not supported")); command_aborted(channel, 0xA2); break; case 0xB0: BX_ERROR(("read cmd 0xB0 (SMART DISABLE OPERATIONS) not supported")); command_aborted(channel, 0xB0); break; case 0xB1: BX_ERROR(("read cmd 0xB1 (DEVICE CONFIGURATION FREEZE LOCK) not supported")); command_aborted(channel, 0xB1); break; case 0xC0: BX_ERROR(("read cmd 0xC0 (CFA ERASE SECTORS) not supported")); command_aborted(channel, 0xC0); break; case 0xC4: BX_ERROR(("read cmd 0xC4 (READ MULTIPLE) not supported")); command_aborted(channel, 0xC4); break; case 0xC5: BX_ERROR(("read cmd 0xC5 (WRITE MULTIPLE) not supported")); command_aborted(channel, 0xC5); break; case 0xC6: BX_ERROR(("read cmd 0xC6 (SET MULTIPLE MODE) not supported")); command_aborted(channel, 0xC6); break; case 0xC7: BX_ERROR(("read cmd 0xC7 (READ DMA QUEUED) not supported")); command_aborted(channel, 0xC7); break; case 0xC8: BX_ERROR(("read cmd 0xC8 (READ DMA) not supported")); command_aborted(channel, 0xC8); break; case 0xC9: BX_ERROR(("read cmd 0xC9 (READ DMA NO RETRY) not supported")); command_aborted(channel, 0xC9); break; case 0xCA: BX_ERROR(("read cmd 0xCA (WRITE DMA) not supported")); command_aborted(channel, 0xCA); break; case 0xCC: BX_ERROR(("read cmd 0xCC (WRITE DMA QUEUED) not supported")); command_aborted(channel, 0xCC); break; case 0xCD: BX_ERROR(("read cmd 0xCD (CFA WRITE MULTIPLE W/OUT ERASE) not supported")); command_aborted(channel, 0xCD); break; case 0xD1: BX_ERROR(("read cmd 0xD1 (CHECK MEDIA CARD TYPE) not supported")); command_aborted(channel, 0xD1); break; case 0xDA: BX_ERROR(("read cmd 0xDA (GET MEDIA STATUS) not supported")); command_aborted(channel, 0xDA); break; case 0xDE: BX_ERROR(("read cmd 0xDE (MEDIA LOCK) not supported")); command_aborted(channel, 0xDE); break; case 0xDF: BX_ERROR(("read cmd 0xDF (MEDIA UNLOCK) not supported")); command_aborted(channel, 0xDF); break; case 0xE0: BX_ERROR(("read cmd 0xE0 (STANDBY IMMEDIATE) not supported")); command_aborted(channel, 0xE0); break; case 0xE1: BX_ERROR(("read cmd 0xE1 (IDLE IMMEDIATE) not supported")); command_aborted(channel, 0xE1); break; case 0xE2: BX_ERROR(("read cmd 0xE2 (STANDBY) not supported")); command_aborted(channel, 0xE2); break; case 0xE3: BX_ERROR(("read cmd 0xE3 (IDLE) not supported")); command_aborted(channel, 0xE3); break; case 0xE4: BX_ERROR(("read cmd 0xE4 (READ BUFFER) not supported")); command_aborted(channel, 0xE4); break; case 0xE5: BX_ERROR(("read cmd 0xE5 (CHECK POWER MODE) not supported")); command_aborted(channel, 0xE5); break; case 0xE6: BX_ERROR(("read cmd 0xE6 (SLEEP) not supported")); command_aborted(channel, 0xE6); break; case 0xE7: BX_ERROR(("read cmd 0xE7 (FLUSH CACHE) not supported")); command_aborted(channel, 0xE7); break; case 0xE8: BX_ERROR(("read cmd 0xE8 (WRITE BUFFER) not supported")); command_aborted(channel, 0xE8); break; case 0xEA: BX_ERROR(("read cmd 0xEA (FLUSH CACHE EXT) not supported")); command_aborted(channel, 0xEA); break; case 0xED: BX_ERROR(("read cmd 0xED (MEDIA EJECT) not supported")); command_aborted(channel, 0xED); break; case 0xEF: BX_ERROR(("read cmd 0xEF (SET FEATURES) not supported")); command_aborted(channel, 0xEF); break; case 0xF1: BX_ERROR(("read cmd 0xF1 (SECURITY SET PASSWORD) not supported")); command_aborted(channel, 0xF1); break; case 0xF2: BX_ERROR(("read cmd 0xF2 (SECURITY UNLOCK) not supported")); command_aborted(channel, 0xF2); break; case 0xF3: BX_ERROR(("read cmd 0xF3 (SECURITY ERASE PREPARE) not supported")); command_aborted(channel, 0xF3); break; case 0xF4: BX_ERROR(("read cmd 0xF4 (SECURITY ERASE UNIT) not supported")); command_aborted(channel, 0xF4); break; case 0xF5: BX_ERROR(("read cmd 0xF5 (SECURITY FREEZE LOCK) not supported")); command_aborted(channel, 0xF5); break; case 0xF6: BX_ERROR(("read cmd 0xF6 (SECURITY DISABLE PASSWORD) not supported")); command_aborted(channel, 0xF6); break; case 0xF8: BX_ERROR(("read cmd 0xF8 (READ NATIVE MAX ADDRESS) not supported")); command_aborted(channel, 0xF8); break; case 0xF9: BX_ERROR(("read cmd 0xF9 (SET MAX ADDRESS) not supported")); command_aborted(channel, 0xF9); break; default: BX_PANIC(("IO read(0x%04x): current command is %02xh", address, (unsigned) BX_SELECTED_CONTROLLER(channel).current_command)); } break; case 0x01: // hard disk error register 0x1f1 BX_SELECTED_CONTROLLER(channel).status.err = 0; value8 = (!BX_SELECTED_IS_PRESENT(channel)) ? 0 : BX_SELECTED_CONTROLLER(channel).error_register; goto return_value8; break; case 0x02: // hard disk sector count / interrupt reason 0x1f2 value8 = (!BX_SELECTED_IS_PRESENT(channel)) ? 0 : BX_SELECTED_CONTROLLER(channel).sector_count; goto return_value8; break; case 0x03: // sector number 0x1f3 value8 = (!BX_SELECTED_IS_PRESENT(channel)) ? 0 : BX_SELECTED_CONTROLLER(channel).sector_no; goto return_value8; case 0x04: // cylinder low 0x1f4 // -- WARNING : On real hardware the controller registers are shared between drives. // So we must respond even if the select device is not present. Some OS uses this fact // to detect the disks.... minix2 for example value8 = (!BX_ANY_IS_PRESENT(channel)) ? 0 : (BX_SELECTED_CONTROLLER(channel).cylinder_no & 0x00ff); goto return_value8; case 0x05: // cylinder high 0x1f5 // -- WARNING : On real hardware the controller registers are shared between drives. // So we must respond even if the select device is not present. Some OS uses this fact // to detect the disks.... minix2 for example value8 = (!BX_ANY_IS_PRESENT(channel)) ? 0 : BX_SELECTED_CONTROLLER(channel).cylinder_no >> 8; goto return_value8; case 0x06: // hard disk drive and head register 0x1f6 // b7 Extended data field for ECC // b6/b5: Used to be sector size. 00=256,01=512,10=1024,11=128 // Since 512 was always used, bit 6 was taken to mean LBA mode: // b6 1=LBA mode, 0=CHS mode // b5 1 // b4: DRV // b3..0 HD3..HD0 value8 = (1 << 7) | ((BX_SELECTED_CONTROLLER(channel).lba_mode>0) << 6) | (1 << 5) | // 01b = 512 sector size (BX_HD_THIS channels[channel].drive_select << 4) | (BX_SELECTED_CONTROLLER(channel).head_no << 0); goto return_value8; break; //BX_CONTROLLER(channel,0).lba_mode case 0x07: // Hard Disk Status 0x1f7 case 0x16: // Hard Disk Alternate Status 0x3f6 if (!BX_ANY_IS_PRESENT(channel)) { // (mch) Just return zero for these registers value8 = 0; } else { value8 = ( (BX_SELECTED_CONTROLLER(channel).status.busy << 7) | (BX_SELECTED_CONTROLLER(channel).status.drive_ready << 6) | (BX_SELECTED_CONTROLLER(channel).status.write_fault << 5) | (BX_SELECTED_CONTROLLER(channel).status.seek_complete << 4) | (BX_SELECTED_CONTROLLER(channel).status.drq << 3) | (BX_SELECTED_CONTROLLER(channel).status.corrected_data << 2) | (BX_SELECTED_CONTROLLER(channel).status.index_pulse << 1) | (BX_SELECTED_CONTROLLER(channel).status.err) ); BX_SELECTED_CONTROLLER(channel).status.index_pulse_count++; BX_SELECTED_CONTROLLER(channel).status.index_pulse = 0; if (BX_SELECTED_CONTROLLER(channel).status.index_pulse_count >= INDEX_PULSE_CYCLE) { BX_SELECTED_CONTROLLER(channel).status.index_pulse = 1; BX_SELECTED_CONTROLLER(channel).status.index_pulse_count = 0; } } if (port == 0x07) { DEV_pic_lower_irq(BX_HD_THIS channels[channel].irq); } goto return_value8; break; case 0x17: // Hard Disk Address Register 0x3f7 // Obsolete and unsupported register. Not driven by hard // disk controller. Report all 1's. If floppy controller // is handling this address, it will call this function // set/clear D7 (the only bit it handles), then return // the combined value value8 = 0xff; goto return_value8; break; default: BX_PANIC(("hard drive: io read to address %x unsupported", (unsigned) address)); } BX_PANIC(("hard drive: shouldnt get here!")); return(0); return_value32: BX_DEBUG(("32-bit read from %04x = %08x {%s}", (unsigned) address, value32, BX_SELECTED_TYPE_STRING(channel))); return value32; return_value16: BX_DEBUG(("16-bit read from %04x = %04x {%s}", (unsigned) address, value16, BX_SELECTED_TYPE_STRING(channel))); return value16; return_value8: BX_DEBUG(("8-bit read from %04x = %02x {%s}", (unsigned) address, value8, BX_SELECTED_TYPE_STRING(channel))); return value8; } // static IO port write callback handler // redirects to non-static class handler to avoid virtual functions void bx_hard_drive_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len) { #if !BX_USE_HD_SMF bx_hard_drive_c *class_ptr = (bx_hard_drive_c *) this_ptr; class_ptr->write(address, value, io_len); } void bx_hard_drive_c::write(Bit32u address, Bit32u value, unsigned io_len) { #else UNUSED(this_ptr); #endif // !BX_USE_HD_SMF off_t logical_sector; off_t ret; bx_bool prev_control_reset; Bit8u channel = BX_MAX_ATA_CHANNEL; Bit32u port = 0xff; // undefined for (channel=0; channel= 512) BX_PANIC(("IO write(0x%04x): buffer_index >= 512", address)); #if BX_SupportRepeatSpeedups if (DEV_bulk_io_quantum_requested()) { unsigned transferLen, quantumsMax; quantumsMax = (512 - BX_SELECTED_CONTROLLER(channel).buffer_index) / io_len; if ( quantumsMax == 0) BX_PANIC(("IO write(0x%04x): not enough space for write", address)); DEV_bulk_io_quantum_transferred() = DEV_bulk_io_quantum_requested(); if (quantumsMax < DEV_bulk_io_quantum_transferred()) DEV_bulk_io_quantum_transferred() = quantumsMax; transferLen = io_len * DEV_bulk_io_quantum_transferred(); memcpy( &BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index], (Bit8u*) DEV_bulk_io_host_addr(), transferLen); DEV_bulk_io_host_addr() += transferLen; BX_SELECTED_CONTROLLER(channel).buffer_index += transferLen; } else #endif { switch(io_len){ case 4: BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+3] = (Bit8u)(value >> 24); BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+2] = (Bit8u)(value >> 16); case 2: BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+1] = (Bit8u)(value >> 8); BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index] = (Bit8u) value; } BX_SELECTED_CONTROLLER(channel).buffer_index += io_len; } /* if buffer completely writtten */ if (BX_SELECTED_CONTROLLER(channel).buffer_index >= 512) { off_t logical_sector; off_t ret; #if TEST_WRITE_BEYOND_END==1 BX_SELECTED_CONTROLLER(channel).cylinder_no += 100000; #endif if (!calculate_logical_address(channel, &logical_sector)) { BX_ERROR(("write reached invalid sector %lu, aborting", (unsigned long)logical_sector)); command_aborted (channel, BX_SELECTED_CONTROLLER(channel).current_command); return; } #if TEST_WRITE_BEYOND_END==2 logical_sector += 100000; #endif ret = BX_SELECTED_DRIVE(channel).hard_drive->lseek(logical_sector * 512, SEEK_SET); if (ret < 0) { BX_ERROR(("could not lseek() hard drive image file at byte %lu", (unsigned long)logical_sector * 512)); command_aborted (channel, BX_SELECTED_CONTROLLER(channel).current_command); return; } /* set status bar conditions for device */ if (!BX_SELECTED_DRIVE(channel).iolight_counter) bx_gui->statusbar_setitem(BX_SELECTED_DRIVE(channel).statusbar_id, 1); BX_SELECTED_DRIVE(channel).iolight_counter = 5; bx_pc_system.activate_timer( BX_HD_THIS iolight_timer_index, 100000, 0 ); ret = BX_SELECTED_DRIVE(channel).hard_drive->write((bx_ptr_t) BX_SELECTED_CONTROLLER(channel).buffer, 512); if (ret < 512) { BX_ERROR(("could not write() hard drive image file at byte %lu", (unsigned long)logical_sector*512)); command_aborted (channel, BX_SELECTED_CONTROLLER(channel).current_command); return; } BX_SELECTED_CONTROLLER(channel).buffer_index = 0; /* update sector count, sector number, cylinder, * drive, head, status * if there are more sectors, read next one in... */ increment_address(channel); /* When the write is complete, controller clears the DRQ bit and * sets the BSY bit. * If at least one more sector is to be written, controller sets DRQ bit, * clears BSY bit, and issues IRQ */ if (BX_SELECTED_CONTROLLER(channel).sector_count!=0) { BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; } else { /* no more sectors to write */ BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; } raise_interrupt(channel); } break; case 0xa0: // PACKET if (BX_SELECTED_CONTROLLER(channel).buffer_index >= PACKET_SIZE) BX_PANIC(("IO write(0x%04x): buffer_index >= PACKET_SIZE", address)); BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index] = value; BX_SELECTED_CONTROLLER(channel).buffer[BX_SELECTED_CONTROLLER(channel).buffer_index+1] = (value >> 8); BX_SELECTED_CONTROLLER(channel).buffer_index += 2; /* if packet completely writtten */ if (BX_SELECTED_CONTROLLER(channel).buffer_index >= PACKET_SIZE) { // complete command received Bit8u atapi_command = BX_SELECTED_CONTROLLER(channel).buffer[0]; if (bx_dbg.cdrom) BX_INFO(("cdrom: ATAPI command 0x%x started", atapi_command)); switch (atapi_command) { case 0x00: // test unit ready if (BX_SELECTED_DRIVE(channel).cdrom.ready) { atapi_cmd_nop(channel); } else { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); } raise_interrupt(channel); break; case 0x03: { // request sense int alloc_length = BX_SELECTED_CONTROLLER(channel).buffer[4]; init_send_atapi_command(channel, atapi_command, 18, alloc_length); // sense data BX_SELECTED_CONTROLLER(channel).buffer[0] = 0x70 | (1 << 7); BX_SELECTED_CONTROLLER(channel).buffer[1] = 0; BX_SELECTED_CONTROLLER(channel).buffer[2] = BX_SELECTED_DRIVE(channel).sense.sense_key; BX_SELECTED_CONTROLLER(channel).buffer[3] = BX_SELECTED_DRIVE(channel).sense.information.arr[0]; BX_SELECTED_CONTROLLER(channel).buffer[4] = BX_SELECTED_DRIVE(channel).sense.information.arr[1]; BX_SELECTED_CONTROLLER(channel).buffer[5] = BX_SELECTED_DRIVE(channel).sense.information.arr[2]; BX_SELECTED_CONTROLLER(channel).buffer[6] = BX_SELECTED_DRIVE(channel).sense.information.arr[3]; BX_SELECTED_CONTROLLER(channel).buffer[7] = 17-7; BX_SELECTED_CONTROLLER(channel).buffer[8] = BX_SELECTED_DRIVE(channel).sense.specific_inf.arr[0]; BX_SELECTED_CONTROLLER(channel).buffer[9] = BX_SELECTED_DRIVE(channel).sense.specific_inf.arr[1]; BX_SELECTED_CONTROLLER(channel).buffer[10] = BX_SELECTED_DRIVE(channel).sense.specific_inf.arr[2]; BX_SELECTED_CONTROLLER(channel).buffer[11] = BX_SELECTED_DRIVE(channel).sense.specific_inf.arr[3]; BX_SELECTED_CONTROLLER(channel).buffer[12] = BX_SELECTED_DRIVE(channel).sense.asc; BX_SELECTED_CONTROLLER(channel).buffer[13] = BX_SELECTED_DRIVE(channel).sense.ascq; BX_SELECTED_CONTROLLER(channel).buffer[14] = BX_SELECTED_DRIVE(channel).sense.fruc; BX_SELECTED_CONTROLLER(channel).buffer[15] = BX_SELECTED_DRIVE(channel).sense.key_spec.arr[0]; BX_SELECTED_CONTROLLER(channel).buffer[16] = BX_SELECTED_DRIVE(channel).sense.key_spec.arr[1]; BX_SELECTED_CONTROLLER(channel).buffer[17] = BX_SELECTED_DRIVE(channel).sense.key_spec.arr[2]; ready_to_send_atapi(channel); } break; case 0x1b: { // start stop unit //bx_bool Immed = (BX_SELECTED_CONTROLLER(channel).buffer[1] >> 0) & 1; bx_bool LoEj = (BX_SELECTED_CONTROLLER(channel).buffer[4] >> 1) & 1; bx_bool Start = (BX_SELECTED_CONTROLLER(channel).buffer[4] >> 0) & 1; if (!LoEj && !Start) { // stop the disc BX_ERROR(("FIXME: Stop disc not implemented")); atapi_cmd_nop(channel); raise_interrupt(channel); } else if (!LoEj && Start) { // start (spin up) the disc #ifdef LOWLEVEL_CDROM BX_SELECTED_DRIVE(channel).cdrom.cd->start_cdrom(); #endif BX_ERROR(("FIXME: ATAPI start disc not reading TOC")); atapi_cmd_nop(channel); raise_interrupt(channel); } else if (LoEj && !Start) { // Eject the disc atapi_cmd_nop(channel); if (BX_SELECTED_DRIVE(channel).cdrom.ready) { #ifdef LOWLEVEL_CDROM BX_SELECTED_DRIVE(channel).cdrom.cd->eject_cdrom(); #endif BX_SELECTED_DRIVE(channel).cdrom.ready = 0; bx_options.atadevice[channel][BX_SLAVE_SELECTED(channel)].Ostatus->set(BX_EJECTED); bx_gui->update_drive_status_buttons(); } raise_interrupt(channel); } else { // Load the disc // My guess is that this command only closes the tray, that's a no-op for us atapi_cmd_nop(channel); raise_interrupt(channel); } } break; case 0xbd: { // mechanism status uint16 alloc_length = read_16bit(BX_SELECTED_CONTROLLER(channel).buffer + 8); if (alloc_length == 0) BX_PANIC(("Zero allocation length to MECHANISM STATUS not impl.")); init_send_atapi_command(channel, atapi_command, 8, alloc_length); BX_SELECTED_CONTROLLER(channel).buffer[0] = 0; // reserved for non changers BX_SELECTED_CONTROLLER(channel).buffer[1] = 0; // reserved for non changers BX_SELECTED_CONTROLLER(channel).buffer[2] = 0; // Current LBA (TODO!) BX_SELECTED_CONTROLLER(channel).buffer[3] = 0; // Current LBA (TODO!) BX_SELECTED_CONTROLLER(channel).buffer[4] = 0; // Current LBA (TODO!) BX_SELECTED_CONTROLLER(channel).buffer[5] = 1; // one slot BX_SELECTED_CONTROLLER(channel).buffer[6] = 0; // slot table length BX_SELECTED_CONTROLLER(channel).buffer[7] = 0; // slot table length ready_to_send_atapi(channel); } break; case 0x5a: { // mode sense uint16 alloc_length = read_16bit(BX_SELECTED_CONTROLLER(channel).buffer + 7); Bit8u PC = BX_SELECTED_CONTROLLER(channel).buffer[2] >> 6; Bit8u PageCode = BX_SELECTED_CONTROLLER(channel).buffer[2] & 0x3f; switch (PC) { case 0x0: // current values switch (PageCode) { case 0x01: // error recovery init_send_atapi_command(channel, atapi_command, sizeof(error_recovery_t) + 8, alloc_length); init_mode_sense_single(channel, &BX_SELECTED_DRIVE(channel).cdrom.current.error_recovery, sizeof(error_recovery_t)); ready_to_send_atapi(channel); break; case 0x2a: // CD-ROM capabilities & mech. status init_send_atapi_command(channel, atapi_command, 28, alloc_length); init_mode_sense_single(channel, &BX_SELECTED_CONTROLLER(channel).buffer[8], 28); BX_SELECTED_CONTROLLER(channel).buffer[8] = 0x2a; BX_SELECTED_CONTROLLER(channel).buffer[9] = 0x12; BX_SELECTED_CONTROLLER(channel).buffer[10] = 0x00; BX_SELECTED_CONTROLLER(channel).buffer[11] = 0x00; // Multisession, Mode 2 Form 2, Mode 2 Form 1 BX_SELECTED_CONTROLLER(channel).buffer[12] = 0x70; BX_SELECTED_CONTROLLER(channel).buffer[13] = (3 << 5); BX_SELECTED_CONTROLLER(channel).buffer[14] = (unsigned char) (1 | (BX_SELECTED_DRIVE(channel).cdrom.locked ? (1 << 1) : 0) | (1 << 3) | (1 << 5)); BX_SELECTED_CONTROLLER(channel).buffer[15] = 0x00; BX_SELECTED_CONTROLLER(channel).buffer[16] = (706 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[17] = 706 & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[18] = 0; BX_SELECTED_CONTROLLER(channel).buffer[19] = 2; BX_SELECTED_CONTROLLER(channel).buffer[20] = (512 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[21] = 512 & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[22] = (706 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[23] = 706 & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[24] = 0; BX_SELECTED_CONTROLLER(channel).buffer[25] = 0; BX_SELECTED_CONTROLLER(channel).buffer[26] = 0; BX_SELECTED_CONTROLLER(channel).buffer[27] = 0; ready_to_send_atapi(channel); break; case 0x0d: // CD-ROM case 0x0e: // CD-ROM audio control case 0x3f: // all BX_ERROR(("cdrom: MODE SENSE (curr), code=%x" " not implemented yet", PageCode)); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; default: // not implemeted by this device BX_INFO(("cdrom: MODE SENSE PC=%x, PageCode=%x," " not implemented by device", PC, PageCode)); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; } break; case 0x1: // changeable values switch (PageCode) { case 0x01: // error recovery case 0x0d: // CD-ROM case 0x0e: // CD-ROM audio control case 0x2a: // CD-ROM capabilities & mech. status case 0x3f: // all BX_ERROR(("cdrom: MODE SENSE (chg), code=%x" " not implemented yet", PageCode)); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; default: // not implemeted by this device BX_INFO(("cdrom: MODE SENSE PC=%x, PageCode=%x," " not implemented by device", PC, PageCode)); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; } break; case 0x2: // default values switch (PageCode) { case 0x2a: // CD-ROM capabilities & mech. status, copied from current values init_send_atapi_command(channel, atapi_command, 28, alloc_length); init_mode_sense_single(channel, &BX_SELECTED_CONTROLLER(channel).buffer[8], 28); BX_SELECTED_CONTROLLER(channel).buffer[8] = 0x2a; BX_SELECTED_CONTROLLER(channel).buffer[9] = 0x12; BX_SELECTED_CONTROLLER(channel).buffer[10] = 0x00; BX_SELECTED_CONTROLLER(channel).buffer[11] = 0x00; // Multisession, Mode 2 Form 2, Mode 2 Form 1 BX_SELECTED_CONTROLLER(channel).buffer[12] = 0x70; BX_SELECTED_CONTROLLER(channel).buffer[13] = (3 << 5); BX_SELECTED_CONTROLLER(channel).buffer[14] = (unsigned char) (1 | (BX_SELECTED_DRIVE(channel).cdrom.locked ? (1 << 1) : 0) | (1 << 3) | (1 << 5)); BX_SELECTED_CONTROLLER(channel).buffer[15] = 0x00; BX_SELECTED_CONTROLLER(channel).buffer[16] = (706 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[17] = 706 & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[18] = 0; BX_SELECTED_CONTROLLER(channel).buffer[19] = 2; BX_SELECTED_CONTROLLER(channel).buffer[20] = (512 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[21] = 512 & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[22] = (706 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[23] = 706 & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[24] = 0; BX_SELECTED_CONTROLLER(channel).buffer[25] = 0; BX_SELECTED_CONTROLLER(channel).buffer[26] = 0; BX_SELECTED_CONTROLLER(channel).buffer[27] = 0; ready_to_send_atapi(channel); break; case 0x01: // error recovery case 0x0d: // CD-ROM case 0x0e: // CD-ROM audio control case 0x3f: // all BX_PANIC(("cdrom: MODE SENSE (dflt), code=%x", PageCode)); break; default: // not implemeted by this device BX_INFO(("cdrom: MODE SENSE PC=%x, PageCode=%x," " not implemented by device", PC, PageCode)); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; } break; case 0x3: // saved values not implemented atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_SAVING_PARAMETERS_NOT_SUPPORTED); raise_interrupt(channel); break; default: BX_PANIC(("Should not get here!")); break; } } break; case 0x12: { // inquiry uint8 alloc_length = BX_SELECTED_CONTROLLER(channel).buffer[4]; init_send_atapi_command(channel, atapi_command, 36, alloc_length); BX_SELECTED_CONTROLLER(channel).buffer[0] = 0x05; // CD-ROM BX_SELECTED_CONTROLLER(channel).buffer[1] = 0x80; // Removable BX_SELECTED_CONTROLLER(channel).buffer[2] = 0x00; // ISO, ECMA, ANSI version BX_SELECTED_CONTROLLER(channel).buffer[3] = 0x21; // ATAPI-2, as specified BX_SELECTED_CONTROLLER(channel).buffer[4] = 31; // additional length (total 36) BX_SELECTED_CONTROLLER(channel).buffer[5] = 0x00; // reserved BX_SELECTED_CONTROLLER(channel).buffer[6] = 0x00; // reserved BX_SELECTED_CONTROLLER(channel).buffer[7] = 0x00; // reserved // Vendor ID const char* vendor_id = "VTAB "; int i; for (i = 0; i < 8; i++) BX_SELECTED_CONTROLLER(channel).buffer[8+i] = vendor_id[i]; // Product ID const char* product_id = "Turbo CD-ROM "; for (i = 0; i < 16; i++) BX_SELECTED_CONTROLLER(channel).buffer[16+i] = product_id[i]; // Product Revision level const char* rev_level = "1.0 "; for (i = 0; i < 4; i++) BX_SELECTED_CONTROLLER(channel).buffer[32+i] = rev_level[i]; ready_to_send_atapi(channel); } break; case 0x25: { // read cd-rom capacity // no allocation length??? init_send_atapi_command(channel, atapi_command, 8, 8); if (BX_SELECTED_DRIVE(channel).cdrom.ready) { uint32 capacity = BX_SELECTED_DRIVE(channel).cdrom.capacity; BX_INFO(("Capacity is %d sectors (%d bytes)", capacity, capacity * 2048)); BX_SELECTED_CONTROLLER(channel).buffer[0] = (capacity >> 24) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[1] = (capacity >> 16) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[2] = (capacity >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[3] = (capacity >> 0) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[4] = (2048 >> 24) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[5] = (2048 >> 16) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[6] = (2048 >> 8) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[7] = (2048 >> 0) & 0xff; ready_to_send_atapi(channel); } else { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); raise_interrupt(channel); } } break; case 0xbe: { // read cd if (BX_SELECTED_DRIVE(channel).cdrom.ready) { BX_ERROR(("Read CD with CD present not implemented")); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); } else { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); raise_interrupt(channel); } } break; case 0x43: { // read toc if (BX_SELECTED_DRIVE(channel).cdrom.ready) { #ifdef LOWLEVEL_CDROM bool msf = (BX_SELECTED_CONTROLLER(channel).buffer[1] >> 1) & 1; uint8 starting_track = BX_SELECTED_CONTROLLER(channel).buffer[6]; #endif uint16 alloc_length = read_16bit(BX_SELECTED_CONTROLLER(channel).buffer + 7); uint8 format = (BX_SELECTED_CONTROLLER(channel).buffer[9] >> 6); int i; switch (format) { case 0: #ifdef LOWLEVEL_CDROM int toc_length; if (!(BX_SELECTED_DRIVE(channel).cdrom.cd->read_toc(BX_SELECTED_CONTROLLER(channel).buffer, &toc_length, msf, starting_track))) { atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); } else { init_send_atapi_command(channel, atapi_command, toc_length, alloc_length); ready_to_send_atapi(channel); } #else BX_PANIC(("LOWLEVEL_CDROM not defined")); #endif break; case 1: // multi session stuff. we ignore this and emulate a single session only init_send_atapi_command(channel, atapi_command, 12, alloc_length); BX_SELECTED_CONTROLLER(channel).buffer[0] = 0; BX_SELECTED_CONTROLLER(channel).buffer[1] = 0x0a; BX_SELECTED_CONTROLLER(channel).buffer[2] = 1; BX_SELECTED_CONTROLLER(channel).buffer[3] = 1; for (i = 0; i < 8; i++) BX_SELECTED_CONTROLLER(channel).buffer[4+i] = 0; ready_to_send_atapi(channel); break; case 2: default: BX_PANIC(("(READ TOC) Format %d not supported", format)); break; } } else { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); raise_interrupt(channel); } } break; case 0x28: // read (10) case 0xa8: // read (12) { uint32 transfer_length; if (atapi_command == 0x28) transfer_length = read_16bit(BX_SELECTED_CONTROLLER(channel).buffer + 7); else transfer_length = read_32bit(BX_SELECTED_CONTROLLER(channel).buffer + 6); uint32 lba = read_32bit(BX_SELECTED_CONTROLLER(channel).buffer + 2); if (!BX_SELECTED_DRIVE(channel).cdrom.ready) { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); raise_interrupt(channel); break; } if (transfer_length == 0) { atapi_cmd_nop(channel); raise_interrupt(channel); BX_INFO(("READ(%d) with transfer length 0, ok", atapi_command==0x28?10:12)); break; } if (lba + transfer_length > BX_SELECTED_DRIVE(channel).cdrom.capacity) { atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR); raise_interrupt(channel); break; } BX_DEBUG(("cdrom: READ (%d) LBA=%d LEN=%d", atapi_command==0x28?10:12, lba, transfer_length)); // handle command init_send_atapi_command(channel, atapi_command, transfer_length * 2048, transfer_length * 2048, true); BX_SELECTED_DRIVE(channel).cdrom.remaining_blocks = transfer_length; BX_SELECTED_DRIVE(channel).cdrom.next_lba = lba; ready_to_send_atapi(channel); } break; case 0x2b: { // seek uint32 lba = read_32bit(BX_SELECTED_CONTROLLER(channel).buffer + 2); if (!BX_SELECTED_DRIVE(channel).cdrom.ready) { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); raise_interrupt(channel); break; } if (lba > BX_SELECTED_DRIVE(channel).cdrom.capacity) { atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR); raise_interrupt(channel); break; } BX_INFO(("cdrom: SEEK (ignored)")); atapi_cmd_nop(channel); raise_interrupt(channel); } break; case 0x1e: { // prevent/allow medium removal if (BX_SELECTED_DRIVE(channel).cdrom.ready) { BX_SELECTED_DRIVE(channel).cdrom.locked = BX_SELECTED_CONTROLLER(channel).buffer[4] & 1; atapi_cmd_nop(channel); } else { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); } raise_interrupt(channel); } break; case 0x42: { // read sub-channel bool msf = get_packet_field(channel,1, 1, 1); bool sub_q = get_packet_field(channel,2, 6, 1); uint8 data_format = get_packet_byte(channel,3); uint8 track_number = get_packet_byte(channel,6); uint16 alloc_length = get_packet_word(channel,7); UNUSED(msf); UNUSED(data_format); UNUSED(track_number); if (!BX_SELECTED_DRIVE(channel).cdrom.ready) { atapi_cmd_error(channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); raise_interrupt(channel); } else { BX_SELECTED_CONTROLLER(channel).buffer[0] = 0; BX_SELECTED_CONTROLLER(channel).buffer[1] = 0; // audio not supported BX_SELECTED_CONTROLLER(channel).buffer[2] = 0; BX_SELECTED_CONTROLLER(channel).buffer[3] = 0; int ret_len = 4; // header size if (sub_q) { // !sub_q == header only BX_ERROR(("Read sub-channel with SubQ not implemented")); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); } init_send_atapi_command(channel, atapi_command, ret_len, alloc_length); ready_to_send_atapi(channel); } } break; case 0x51: { // read disc info // no-op to keep the Linux CD-ROM driver happy atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); } break; case 0x55: // mode select case 0xa6: // load/unload cd case 0x4b: // pause/resume case 0x45: // play audio case 0x47: // play audio msf case 0xbc: // play cd case 0xb9: // read cd msf case 0x44: // read header case 0xba: // scan case 0xbb: // set cd speed case 0x4e: // stop play/scan case 0x46: // ??? case 0x4a: // ??? BX_ERROR(("ATAPI command 0x%x not implemented yet", atapi_command)); atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; default: BX_PANIC(("Unknown ATAPI command 0x%x (%d)", atapi_command, atapi_command)); // We'd better signal the error if the user chose to continue atapi_cmd_error(channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); raise_interrupt(channel); break; } } break; default: BX_PANIC(("IO write(0x%04x): current command is %02xh", address, (unsigned) BX_SELECTED_CONTROLLER(channel).current_command)); } break; case 0x01: // hard disk write precompensation 0x1f1 WRITE_FEATURES(channel,value); if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) { if (value == 0xff) BX_INFO(("no precompensation {%s}", BX_SELECTED_TYPE_STRING(channel))); else BX_INFO(("precompensation value %02x {%s}", (unsigned) value, BX_SELECTED_TYPE_STRING(channel))); } break; case 0x02: // hard disk sector count 0x1f2 WRITE_SECTOR_COUNT(channel,value); if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("sector count = %u {%s}", (unsigned) value, BX_SELECTED_TYPE_STRING(channel))); break; case 0x03: // hard disk sector number 0x1f3 WRITE_SECTOR_NUMBER(channel,value); if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("sector number = %u {%s}", (unsigned) value, BX_SELECTED_TYPE_STRING(channel))); break; case 0x04: // hard disk cylinder low 0x1f4 WRITE_CYLINDER_LOW(channel,value); if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("cylinder low = %02xh {%s}", (unsigned) value, BX_SELECTED_TYPE_STRING(channel))); break; case 0x05: // hard disk cylinder high 0x1f5 WRITE_CYLINDER_HIGH(channel,value); if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("cylinder high = %02xh {%s}", (unsigned) value, BX_SELECTED_TYPE_STRING(channel))); break; case 0x06: // hard disk drive and head register 0x1f6 // b7 Extended data field for ECC // b6/b5: Used to be sector size. 00=256,01=512,10=1024,11=128 // Since 512 was always used, bit 6 was taken to mean LBA mode: // b6 1=LBA mode, 0=CHS mode // b5 1 // b4: DRV // b3..0 HD3..HD0 { if ( (value & 0xa0) != 0xa0 ) // 1x1xxxxx BX_INFO(("IO write 0x%04x (%02x): not 1x1xxxxxb", address, (unsigned) value)); Bit32u drvsel = BX_HD_THIS channels[channel].drive_select = (value >> 4) & 0x01; WRITE_HEAD_NO(channel,value & 0xf); if (BX_SELECTED_CONTROLLER(channel).lba_mode == 0 && ((value >> 6) & 1) == 1) BX_DEBUG(("enabling LBA mode")); WRITE_LBA_MODE(channel,(value >> 6) & 1); if (!BX_SELECTED_IS_PRESENT(channel)) { BX_ERROR (("device set to %d which does not exist",drvsel)); BX_SELECTED_CONTROLLER(channel).error_register = 0x04; // aborted BX_SELECTED_CONTROLLER(channel).status.err = 1; } break; } case 0x07: // hard disk command 0x1f7 // (mch) Writes to the command register with drive_select != 0 // are ignored if no secondary device is present if ((BX_SLAVE_SELECTED(channel)) && (!BX_SLAVE_IS_PRESENT(channel))) break; // Writes to the command register clear the IRQ DEV_pic_lower_irq(BX_HD_THIS channels[channel].irq); if (BX_SELECTED_CONTROLLER(channel).status.busy) BX_PANIC(("hard disk: command sent, controller BUSY")); if ( (value & 0xf0) == 0x10 ) value = 0x10; switch (value) { case 0x10: // CALIBRATE DRIVE if (!BX_SELECTED_IS_HD(channel)) BX_INFO(("calibrate drive issued to non-disk")); // FIXME Maybe we should signal an error in case of cdrom // if (!BX_SELECTED_IS_PRESENT(channel) || !BX_SELECTED_IS_HD(channel)) if (!BX_SELECTED_IS_PRESENT(channel)) { BX_SELECTED_CONTROLLER(channel).error_register = 0x02; // Track 0 not found BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 1; raise_interrupt(channel); BX_INFO(("calibrate drive: disk ata%d-%d not present", channel, BX_SLAVE_SELECTED(channel))); break; } /* move head to cylinder 0, issue IRQ */ BX_SELECTED_CONTROLLER(channel).error_register = 0; BX_SELECTED_CONTROLLER(channel).cylinder_no = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; raise_interrupt(channel); break; case 0x20: // READ MULTIPLE SECTORS, with retries case 0x21: // READ MULTIPLE SECTORS, without retries /* update sector_no, always points to current sector * after each sector is read to buffer, DRQ bit set and issue IRQ * if interrupt handler transfers all data words into main memory, * and more sectors to read, then set BSY bit again, clear DRQ and * read next sector into buffer * sector count of 0 means 256 sectors */ if (!BX_SELECTED_IS_HD(channel)) { BX_ERROR(("read multiple issued to non-disk")); command_aborted(channel, value); break; } BX_SELECTED_CONTROLLER(channel).current_command = value; // Lose98 accesses 0/0/0 in CHS mode if (!BX_SELECTED_CONTROLLER(channel).lba_mode && !BX_SELECTED_CONTROLLER(channel).head_no && !BX_SELECTED_CONTROLLER(channel).cylinder_no && !BX_SELECTED_CONTROLLER(channel).sector_no) { BX_INFO(("Read from 0/0/0, aborting command")); command_aborted(channel, value); break; } #if TEST_READ_BEYOND_END==2 BX_SELECTED_CONTROLLER(channel).cylinder_no += 100000; #endif if (!calculate_logical_address(channel, &logical_sector)) { BX_ERROR(("initial read from sector %lu out of bounds, aborting", (unsigned long)logical_sector)); command_aborted(channel, value); break; } #if TEST_READ_BEYOND_END==3 logical_sector += 100000; #endif ret=BX_SELECTED_DRIVE(channel).hard_drive->lseek(logical_sector * 512, SEEK_SET); if (ret < 0) { BX_ERROR (("could not lseek() hard drive image file, aborting")); command_aborted(channel, value); break; } /* set status bar conditions for device */ if (!BX_SELECTED_DRIVE(channel).iolight_counter) bx_gui->statusbar_setitem(BX_SELECTED_DRIVE(channel).statusbar_id, 1); BX_SELECTED_DRIVE(channel).iolight_counter = 5; bx_pc_system.activate_timer( BX_HD_THIS iolight_timer_index, 100000, 0 ); ret = BX_SELECTED_DRIVE(channel).hard_drive->read((bx_ptr_t) BX_SELECTED_CONTROLLER(channel).buffer, 512); if (ret < 512) { BX_ERROR(("logical sector was %lu", (unsigned long)logical_sector)); BX_ERROR(("could not read() hard drive image file at byte %lu", (unsigned long)logical_sector*512)); command_aborted(channel, value); break; } BX_SELECTED_CONTROLLER(channel).error_register = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; raise_interrupt(channel); break; case 0x30: /* WRITE SECTORS, with retries */ /* update sector_no, always points to current sector * after each sector is read to buffer, DRQ bit set and issue IRQ * if interrupt handler transfers all data words into main memory, * and more sectors to read, then set BSY bit again, clear DRQ and * read next sector into buffer * sector count of 0 means 256 sectors */ if (!BX_SELECTED_IS_HD(channel)) BX_PANIC(("write multiple issued to non-disk")); if (BX_SELECTED_CONTROLLER(channel).status.busy) { BX_PANIC(("write command: BSY bit set")); } BX_SELECTED_CONTROLLER(channel).current_command = value; // implicit seek done :^) BX_SELECTED_CONTROLLER(channel).error_register = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; // BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; break; case 0x90: // EXECUTE DEVICE DIAGNOSTIC if (BX_SELECTED_CONTROLLER(channel).status.busy) { BX_PANIC(("diagnostic command: BSY bit set")); } if (!BX_SELECTED_IS_HD(channel)) BX_PANIC(("drive diagnostics issued to non-disk")); BX_SELECTED_CONTROLLER(channel).error_register = 0x81; // Drive 1 failed, no error on drive 0 // BX_SELECTED_CONTROLLER(channel).status.busy = 0; // not needed BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; break; case 0x91: // INITIALIZE DRIVE PARAMETERS if (BX_SELECTED_CONTROLLER(channel).status.busy) { BX_PANIC(("init drive parameters command: BSY bit set")); } if (!BX_SELECTED_IS_HD(channel)) BX_PANIC(("initialize drive parameters issued to non-disk")); // sets logical geometry of specified drive BX_DEBUG(("init drive params: sec=%u, drive sel=%u, head=%u", (unsigned) BX_SELECTED_CONTROLLER(channel).sector_count, (unsigned) BX_HD_THIS channels[channel].drive_select, (unsigned) BX_SELECTED_CONTROLLER(channel).head_no)); if (!BX_SELECTED_IS_PRESENT(channel)) { BX_PANIC(("init drive params: disk ata%d-%d not present", channel, BX_SLAVE_SELECTED(channel))); //BX_SELECTED_CONTROLLER(channel).error_register = 0x12; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; raise_interrupt(channel); break; } if (BX_SELECTED_CONTROLLER(channel).sector_count != BX_SELECTED_DRIVE(channel).hard_drive->sectors) BX_PANIC(("init drive params: sector count doesnt match %d!=%d", BX_SELECTED_CONTROLLER(channel).sector_count, BX_SELECTED_DRIVE(channel).hard_drive->sectors)); if ( BX_SELECTED_CONTROLLER(channel).head_no != (BX_SELECTED_DRIVE(channel).hard_drive->heads-1) ) BX_PANIC(("init drive params: head number doesn't match %d != %d",BX_SELECTED_CONTROLLER(channel).head_no, BX_SELECTED_DRIVE(channel).hard_drive->heads-1)); BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; raise_interrupt(channel); break; case 0xec: // IDENTIFY DEVICE if (bx_options.OnewHardDriveSupport->get ()) { if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("Drive ID Command issued : 0xec ")); if (!BX_SELECTED_IS_PRESENT(channel)) { BX_INFO(("disk ata%d-%d not present, aborting",channel,BX_SLAVE_SELECTED(channel))); command_aborted(channel, value); break; } if (BX_SELECTED_IS_CD(channel)) { BX_SELECTED_CONTROLLER(channel).head_no = 0; BX_SELECTED_CONTROLLER(channel).sector_count = 1; BX_SELECTED_CONTROLLER(channel).sector_no = 1; BX_SELECTED_CONTROLLER(channel).cylinder_no = 0xeb14; command_aborted(channel, 0xec); } else { BX_SELECTED_CONTROLLER(channel).current_command = value; BX_SELECTED_CONTROLLER(channel).error_register = 0; // See ATA/ATAPI-4, 8.12 BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; raise_interrupt(channel); identify_drive(channel); } } else { BX_INFO(("sent IDENTIFY DEVICE (0xec) to old hard drive")); command_aborted(channel, value); } break; case 0xef: // SET FEATURES switch(BX_SELECTED_CONTROLLER(channel).features) { case 0x02: // Enable and case 0x82: // Disable write cache. case 0xAA: // Enable and case 0x55: // Disable look-ahead cache. case 0xCC: // Enable and case 0x66: // Disable reverting to power-on default case 0x03: // Set Transfer Mode BX_INFO(("SET FEATURES subcommand 0x%02x not supported by disk.", (unsigned) BX_SELECTED_CONTROLLER(channel).features)); command_aborted(channel, value); break; default: BX_PANIC(("SET FEATURES with unknown subcommand: 0x%02x", (unsigned) BX_SELECTED_CONTROLLER(channel).features )); // We'd better signal the error if the user chose to continue command_aborted(channel, value); } break; case 0x40: // READ VERIFY SECTORS if (bx_options.OnewHardDriveSupport->get ()) { if (!BX_SELECTED_IS_HD(channel)) BX_PANIC(("read verify issued to non-disk")); BX_INFO(("Verify Command : 0x40 ! ")); BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; raise_interrupt(channel); } else { BX_INFO(("sent READ VERIFY SECTORS (0x40) to old hard drive")); command_aborted(channel, value); } break; case 0xc6: // SET MULTIPLE MODE (mch) if (BX_SELECTED_CONTROLLER(channel).sector_count != 128 && BX_SELECTED_CONTROLLER(channel).sector_count != 64 && BX_SELECTED_CONTROLLER(channel).sector_count != 32 && BX_SELECTED_CONTROLLER(channel).sector_count != 16 && BX_SELECTED_CONTROLLER(channel).sector_count != 8 && BX_SELECTED_CONTROLLER(channel).sector_count != 4 && BX_SELECTED_CONTROLLER(channel).sector_count != 2) command_aborted(channel, value); if (!BX_SELECTED_IS_HD(channel)) BX_PANIC(("set multiple mode issued to non-disk")); BX_SELECTED_CONTROLLER(channel).sectors_per_block = BX_SELECTED_CONTROLLER(channel).sector_count; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; break; // ATAPI commands case 0xa1: // IDENTIFY PACKET DEVICE if (BX_SELECTED_IS_CD(channel)) { BX_SELECTED_CONTROLLER(channel).current_command = value; BX_SELECTED_CONTROLLER(channel).error_register = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; raise_interrupt(channel); identify_ATAPI_drive(channel); } else { command_aborted(channel, 0xa1); } break; case 0x08: // DEVICE RESET (atapi) if (BX_SELECTED_IS_CD(channel)) { BX_SELECTED_CONTROLLER(channel).status.busy = 1; BX_SELECTED_CONTROLLER(channel).error_register &= ~(1 << 7); // device signature BX_SELECTED_CONTROLLER(channel).head_no = 0; BX_SELECTED_CONTROLLER(channel).sector_count = 1; BX_SELECTED_CONTROLLER(channel).sector_no = 1; BX_SELECTED_CONTROLLER(channel).cylinder_no = 0xeb14; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; } else { BX_DEBUG(("ATAPI Device Reset on non-cd device")); command_aborted(channel, 0x08); } break; case 0xa0: // SEND PACKET (atapi) if (BX_SELECTED_IS_CD(channel)) { // PACKET if (BX_SELECTED_CONTROLLER(channel).features & (1 << 0)) BX_PANIC(("PACKET-DMA not supported")); if (BX_SELECTED_CONTROLLER(channel).features & (1 << 1)) BX_PANIC(("PACKET-overlapped not supported")); // We're already ready! BX_SELECTED_CONTROLLER(channel).sector_count = 1; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; // serv bit?? BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.err = 0; // NOTE: no interrupt here BX_SELECTED_CONTROLLER(channel).current_command = value; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; } else { command_aborted (channel, 0xa0); } break; case 0xa2: // SERVICE (atapi), optional if (BX_SELECTED_IS_CD(channel)) { BX_PANIC(("ATAPI SERVICE not implemented")); } else { command_aborted (channel, 0xa2); } break; // power management case 0xe5: // CHECK POWER MODE BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).sector_count = 0xff; // Active or Idle mode raise_interrupt(channel); break; case 0x70: // SEEK (cgs) if (BX_SELECTED_IS_HD(channel)) { BX_DEBUG(("write cmd 0x70 (SEEK) executing")); if (!calculate_logical_address(channel, &logical_sector)) { BX_ERROR(("initial seek to sector %lu out of bounds, aborting", (unsigned long)logical_sector)); command_aborted(channel, value); break; } BX_SELECTED_CONTROLLER(channel).error_register = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; BX_DEBUG(("s[0].controller.control.disable_irq = %02x", (BX_HD_THIS channels[channel].drives[0]).controller.control.disable_irq)); BX_DEBUG(("s[1].controller.control.disable_irq = %02x", (BX_HD_THIS channels[channel].drives[1]).controller.control.disable_irq)); BX_DEBUG(("SEEK completed. error_register = %02x", BX_SELECTED_CONTROLLER(channel).error_register)); raise_interrupt(channel); BX_DEBUG(("SEEK interrupt completed")); } else { BX_ERROR(("write cmd 0x70 (SEEK) not supported for non-disk")); command_aborted(channel, 0x70); } break; // List all the write operations that are defined in the ATA/ATAPI spec // that we don't support. Commands that are listed here will cause a // BX_ERROR, which is non-fatal, and the command will be aborted. case 0x22: BX_ERROR(("write cmd 0x22 (READ LONG) not supported")); command_aborted(channel, 0x22); break; case 0x23: BX_ERROR(("write cmd 0x23 (READ LONG NO RETRY) not supported")); command_aborted(channel, 0x23); break; case 0x24: BX_ERROR(("write cmd 0x24 (READ SECTORS EXT) not supported"));command_aborted(channel, 0x24); break; case 0x25: BX_ERROR(("write cmd 0x25 (READ DMA EXT) not supported"));command_aborted(channel, 0x25); break; case 0x26: BX_ERROR(("write cmd 0x26 (READ DMA QUEUED EXT) not supported"));command_aborted(channel, 0x26); break; case 0x27: BX_ERROR(("write cmd 0x27 (READ NATIVE MAX ADDRESS EXT) not supported"));command_aborted(channel, 0x27); break; case 0x29: BX_ERROR(("write cmd 0x29 (READ MULTIPLE EXT) not supported"));command_aborted(channel, 0x29); break; case 0x2A: BX_ERROR(("write cmd 0x2A (READ STREAM DMA) not supported"));command_aborted(channel, 0x2A); break; case 0x2B: BX_ERROR(("write cmd 0x2B (READ STREAM PIO) not supported"));command_aborted(channel, 0x2B); break; case 0x2F: BX_ERROR(("write cmd 0x2F (READ LOG EXT) not supported"));command_aborted(channel, 0x2F); break; case 0x31: BX_ERROR(("write cmd 0x31 (WRITE SECTORS NO RETRY) not supported")); command_aborted(channel, 0x31); break; case 0x32: BX_ERROR(("write cmd 0x32 (WRITE LONG) not supported")); command_aborted(channel, 0x32); break; case 0x33: BX_ERROR(("write cmd 0x33 (WRITE LONG NO RETRY) not supported")); command_aborted(channel, 0x33); break; case 0x34: BX_ERROR(("write cmd 0x34 (WRITE SECTORS EXT) not supported"));command_aborted(channel, 0x34); break; case 0x35: BX_ERROR(("write cmd 0x35 (WRITE DMA EXT) not supported"));command_aborted(channel, 0x35); break; case 0x36: BX_ERROR(("write cmd 0x36 (WRITE DMA QUEUED EXT) not supported"));command_aborted(channel, 0x36); break; case 0x37: BX_ERROR(("write cmd 0x37 (SET MAX ADDRESS EXT) not supported"));command_aborted(channel, 0x37); break; case 0x38: BX_ERROR(("write cmd 0x38 (CFA WRITE SECTORS W/OUT ERASE) not supported"));command_aborted(channel, 0x38); break; case 0x39: BX_ERROR(("write cmd 0x39 (WRITE MULTIPLE EXT) not supported"));command_aborted(channel, 0x39); break; case 0x3A: BX_ERROR(("write cmd 0x3A (WRITE STREAM DMA) not supported"));command_aborted(channel, 0x3A); break; case 0x3B: BX_ERROR(("write cmd 0x3B (WRITE STREAM PIO) not supported"));command_aborted(channel, 0x3B); break; case 0x3F: BX_ERROR(("write cmd 0x3F (WRITE LOG EXT) not supported"));command_aborted(channel, 0x3F); break; case 0x41: BX_ERROR(("write cmd 0x41 (READ VERIFY SECTORS NO RETRY) not supported")); command_aborted(channel, 0x41); break; case 0x42: BX_ERROR(("write cmd 0x42 (READ VERIFY SECTORS EXT) not supported"));command_aborted(channel, 0x42); break; case 0x50: BX_ERROR(("write cmd 0x50 (FORMAT TRACK) not supported")); command_aborted(channel, 0x50); break; case 0x51: BX_ERROR(("write cmd 0x51 (CONFIGURE STREAM) not supported"));command_aborted(channel, 0x51); break; case 0x87: BX_ERROR(("write cmd 0x87 (CFA TRANSLATE SECTOR) not supported"));command_aborted(channel, 0x87); break; case 0x92: BX_ERROR(("write cmd 0x92 (DOWNLOAD MICROCODE) not supported"));command_aborted(channel, 0x92); break; case 0x94: BX_ERROR(("write cmd 0x94 (STANDBY IMMEDIATE) not supported")); command_aborted(channel, 0x94); break; case 0x95: BX_ERROR(("write cmd 0x95 (IDLE IMMEDIATE) not supported")); command_aborted(channel, 0x95); break; case 0x96: BX_ERROR(("write cmd 0x96 (STANDBY) not supported")); command_aborted(channel, 0x96); break; case 0x97: BX_ERROR(("write cmd 0x97 (IDLE) not supported")); command_aborted(channel, 0x97); break; case 0x98: BX_ERROR(("write cmd 0x98 (CHECK POWER MODE) not supported")); command_aborted(channel, 0x98); break; case 0x99: BX_ERROR(("write cmd 0x99 (SLEEP) not supported")); command_aborted(channel, 0x99); break; case 0xB0: BX_ERROR(("write cmd 0xB0 (SMART commands) not supported"));command_aborted(channel, 0xB0); break; case 0xB1: BX_ERROR(("write cmd 0xB1 (DEVICE CONFIGURATION commands) not supported"));command_aborted(channel, 0xB1); break; case 0xC0: BX_ERROR(("write cmd 0xC0 (CFA ERASE SECTORS) not supported"));command_aborted(channel, 0xC0); break; case 0xC4: BX_ERROR(("write cmd 0xC4 (READ MULTIPLE) not supported"));command_aborted(channel, 0xC4); break; case 0xC5: BX_ERROR(("write cmd 0xC5 (WRITE MULTIPLE) not supported"));command_aborted(channel, 0xC5); break; case 0xC7: BX_ERROR(("write cmd 0xC7 (READ DMA QUEUED) not supported"));command_aborted(channel, 0xC7); break; case 0xC8: BX_ERROR(("write cmd 0xC8 (READ DMA) not supported"));command_aborted(channel, 0xC8); break; case 0xC9: BX_ERROR(("write cmd 0xC9 (READ DMA NO RETRY) not supported")); command_aborted(channel, 0xC9); break; case 0xCA: BX_ERROR(("write cmd 0xCA (WRITE DMA) not supported"));command_aborted(channel, 0xCA); break; case 0xCC: BX_ERROR(("write cmd 0xCC (WRITE DMA QUEUED) not supported"));command_aborted(channel, 0xCC); break; case 0xCD: BX_ERROR(("write cmd 0xCD (CFA WRITE MULTIPLE W/OUT ERASE) not supported"));command_aborted(channel, 0xCD); break; case 0xD1: BX_ERROR(("write cmd 0xD1 (CHECK MEDIA CARD TYPE) not supported"));command_aborted(channel, 0xD1); break; case 0xDA: BX_ERROR(("write cmd 0xDA (GET MEDIA STATUS) not supported"));command_aborted(channel, 0xDA); break; case 0xDE: BX_ERROR(("write cmd 0xDE (MEDIA LOCK) not supported"));command_aborted(channel, 0xDE); break; case 0xDF: BX_ERROR(("write cmd 0xDF (MEDIA UNLOCK) not supported"));command_aborted(channel, 0xDF); break; case 0xE0: BX_ERROR(("write cmd 0xE0 (STANDBY IMMEDIATE) not supported"));command_aborted(channel, 0xE0); break; case 0xE1: BX_ERROR(("write cmd 0xE1 (IDLE IMMEDIATE) not supported"));command_aborted(channel, 0xE1); break; case 0xE2: BX_ERROR(("write cmd 0xE2 (STANDBY) not supported"));command_aborted(channel, 0xE2); break; case 0xE3: BX_ERROR(("write cmd 0xE3 (IDLE) not supported"));command_aborted(channel, 0xE3); break; case 0xE4: BX_ERROR(("write cmd 0xE4 (READ BUFFER) not supported"));command_aborted(channel, 0xE4); break; case 0xE6: BX_ERROR(("write cmd 0xE6 (SLEEP) not supported"));command_aborted(channel, 0xE6); break; case 0xE7: BX_ERROR(("write cmd 0xE7 (FLUSH CACHE) not supported"));command_aborted(channel, 0xE7); break; case 0xE8: BX_ERROR(("write cmd 0xE8 (WRITE BUFFER) not supported"));command_aborted(channel, 0xE8); break; case 0xEA: BX_ERROR(("write cmd 0xEA (FLUSH CACHE EXT) not supported"));command_aborted(channel, 0xEA); break; case 0xED: BX_ERROR(("write cmd 0xED (MEDIA EJECT) not supported"));command_aborted(channel, 0xED); break; case 0xF1: BX_ERROR(("write cmd 0xF1 (SECURITY SET PASSWORD) not supported"));command_aborted(channel, 0xF1); break; case 0xF2: BX_ERROR(("write cmd 0xF2 (SECURITY UNLOCK) not supported"));command_aborted(channel, 0xF2); break; case 0xF3: BX_ERROR(("write cmd 0xF3 (SECURITY ERASE PREPARE) not supported"));command_aborted(channel, 0xF3); break; case 0xF4: BX_ERROR(("write cmd 0xF4 (SECURITY ERASE UNIT) not supported"));command_aborted(channel, 0xF4); break; case 0xF5: BX_ERROR(("write cmd 0xF5 (SECURITY FREEZE LOCK) not supported"));command_aborted(channel, 0xF5); break; case 0xF6: BX_ERROR(("write cmd 0xF6 (SECURITY DISABLE PASSWORD) not supported"));command_aborted(channel, 0xF6); break; case 0xF8: BX_ERROR(("write cmd 0xF8 (READ NATIVE MAX ADDRESS) not supported"));command_aborted(channel, 0xF8); break; case 0xF9: BX_ERROR(("write cmd 0xF9 (SET MAX ADDRESS) not supported"));command_aborted(channel, 0xF9); break; default: BX_PANIC(("IO write(0x%04x): command 0x%02x", address, (unsigned) value)); // if user foolishly decides to continue, abort the command // so that the software knows the drive didn't understand it. command_aborted(channel, value); } break; case 0x16: // hard disk adapter control 0x3f6 // (mch) Even if device 1 was selected, a write to this register // goes to device 0 (if device 1 is absent) prev_control_reset = BX_SELECTED_CONTROLLER(channel).control.reset; BX_HD_THIS channels[channel].drives[0].controller.control.reset = value & 0x04; BX_HD_THIS channels[channel].drives[1].controller.control.reset = value & 0x04; // CGS: was: BX_SELECTED_CONTROLLER(channel).control.disable_irq = value & 0x02; BX_HD_THIS channels[channel].drives[0].controller.control.disable_irq = value & 0x02; BX_HD_THIS channels[channel].drives[1].controller.control.disable_irq = value & 0x02; BX_DEBUG(( "adpater control reg: reset controller = %d", (unsigned) (BX_SELECTED_CONTROLLER(channel).control.reset) ? 1 : 0 )); BX_DEBUG(( "adpater control reg: disable_irq(X) = %d", (unsigned) (BX_SELECTED_CONTROLLER(channel).control.disable_irq) ? 1 : 0 )); if (!prev_control_reset && BX_SELECTED_CONTROLLER(channel).control.reset) { // transition from 0 to 1 causes all drives to reset BX_DEBUG(("hard drive: RESET")); // (mch) Set BSY, drive not ready for (int id = 0; id < 2; id++) { BX_CONTROLLER(channel,id).status.busy = 1; BX_CONTROLLER(channel,id).status.drive_ready = 0; BX_CONTROLLER(channel,id).reset_in_progress = 1; BX_CONTROLLER(channel,id).status.write_fault = 0; BX_CONTROLLER(channel,id).status.seek_complete = 1; BX_CONTROLLER(channel,id).status.drq = 0; BX_CONTROLLER(channel,id).status.corrected_data = 0; BX_CONTROLLER(channel,id).status.err = 0; BX_CONTROLLER(channel,id).error_register = 0x01; // diagnostic code: no error BX_CONTROLLER(channel,id).current_command = 0x00; BX_CONTROLLER(channel,id).buffer_index = 0; BX_CONTROLLER(channel,id).sectors_per_block = 0x80; BX_CONTROLLER(channel,id).lba_mode = 0; BX_CONTROLLER(channel,id).control.disable_irq = 0; DEV_pic_lower_irq(BX_HD_THIS channels[channel].irq); } } else if (BX_SELECTED_CONTROLLER(channel).reset_in_progress && !BX_SELECTED_CONTROLLER(channel).control.reset) { // Clear BSY and DRDY BX_DEBUG(("Reset complete {%s}", BX_SELECTED_TYPE_STRING(channel))); for (int id = 0; id < 2; id++) { BX_CONTROLLER(channel,id).status.busy = 0; BX_CONTROLLER(channel,id).status.drive_ready = 1; BX_CONTROLLER(channel,id).reset_in_progress = 0; // Device signature if (BX_DRIVE_IS_HD(channel,id)) { BX_CONTROLLER(channel,id).head_no = 0; BX_CONTROLLER(channel,id).sector_count = 1; BX_CONTROLLER(channel,id).sector_no = 1; BX_CONTROLLER(channel,id).cylinder_no = 0; } else { BX_CONTROLLER(channel,id).head_no = 0; BX_CONTROLLER(channel,id).sector_count = 1; BX_CONTROLLER(channel,id).sector_no = 1; BX_CONTROLLER(channel,id).cylinder_no = 0xeb14; } } } BX_DEBUG(("s[0].controller.control.disable_irq = %02x", (BX_HD_THIS channels[channel].drives[0]).controller.control.disable_irq)); BX_DEBUG(("s[1].controller.control.disable_irq = %02x", (BX_HD_THIS channels[channel].drives[1]).controller.control.disable_irq)); break; default: BX_PANIC(("hard drive: io write to address %x = %02x", (unsigned) address, (unsigned) value)); } } void bx_hard_drive_c::close_harddrive(void) { for (Bit8u channel=0; channelclose(); if(BX_HD_THIS channels[channel].drives[1].hard_drive != NULL) BX_HD_THIS channels[channel].drives[1].hard_drive->close(); } } bx_bool BX_CPP_AttrRegparmN(2) bx_hard_drive_c::calculate_logical_address(Bit8u channel, off_t *sector) { off_t logical_sector; if (BX_SELECTED_CONTROLLER(channel).lba_mode) { //bx_printf ("disk: calculate: %d %d %d\n", ((Bit32u)BX_SELECTED_CONTROLLER(channel).head_no), ((Bit32u)BX_SELECTED_CONTROLLER(channel).cylinder_no), (Bit32u)BX_SELECTED_CONTROLLER(channel).sector_no); logical_sector = ((Bit32u)BX_SELECTED_CONTROLLER(channel).head_no) << 24 | ((Bit32u)BX_SELECTED_CONTROLLER(channel).cylinder_no) << 8 | (Bit32u)BX_SELECTED_CONTROLLER(channel).sector_no; //bx_printf ("disk: result: %u\n", logical_sector); } else logical_sector = (BX_SELECTED_CONTROLLER(channel).cylinder_no * BX_SELECTED_DRIVE(channel).hard_drive->heads * BX_SELECTED_DRIVE(channel).hard_drive->sectors) + (BX_SELECTED_CONTROLLER(channel).head_no * BX_SELECTED_DRIVE(channel).hard_drive->sectors) + (BX_SELECTED_CONTROLLER(channel).sector_no - 1); Bit32u sector_count= (Bit32u)BX_SELECTED_DRIVE(channel).hard_drive->cylinders * (Bit32u)BX_SELECTED_DRIVE(channel).hard_drive->heads * (Bit32u)BX_SELECTED_DRIVE(channel).hard_drive->sectors; if (logical_sector >= sector_count) { BX_ERROR (("calc_log_addr: out of bounds (%d/%d)", (Bit32u)logical_sector, sector_count)); return false; } *sector = logical_sector; return true; } void BX_CPP_AttrRegparmN(1) bx_hard_drive_c::increment_address(Bit8u channel) { BX_SELECTED_CONTROLLER(channel).sector_count--; if (BX_SELECTED_CONTROLLER(channel).lba_mode) { off_t current_address; calculate_logical_address(channel, ¤t_address); current_address++; BX_SELECTED_CONTROLLER(channel).head_no = (Bit8u)((current_address >> 24) & 0xf); BX_SELECTED_CONTROLLER(channel).cylinder_no = (Bit16u)((current_address >> 8) & 0xffff); BX_SELECTED_CONTROLLER(channel).sector_no = (Bit8u)((current_address) & 0xff); } else { BX_SELECTED_CONTROLLER(channel).sector_no++; if (BX_SELECTED_CONTROLLER(channel).sector_no > BX_SELECTED_DRIVE(channel).hard_drive->sectors) { BX_SELECTED_CONTROLLER(channel).sector_no = 1; BX_SELECTED_CONTROLLER(channel).head_no++; if (BX_SELECTED_CONTROLLER(channel).head_no >= BX_SELECTED_DRIVE(channel).hard_drive->heads) { BX_SELECTED_CONTROLLER(channel).head_no = 0; BX_SELECTED_CONTROLLER(channel).cylinder_no++; if (BX_SELECTED_CONTROLLER(channel).cylinder_no >= BX_SELECTED_DRIVE(channel).hard_drive->cylinders) BX_SELECTED_CONTROLLER(channel).cylinder_no = BX_SELECTED_DRIVE(channel).hard_drive->cylinders - 1; } } } } void bx_hard_drive_c::identify_ATAPI_drive(Bit8u channel) { unsigned i; BX_SELECTED_DRIVE(channel).id_drive[0] = (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0); // Removable CDROM, 50us response, 12 byte packets for (i = 1; i <= 9; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; const char* serial_number = " VT00001\0\0\0\0\0\0\0\0\0\0\0\0"; for (i = 0; i < 10; i++) { BX_SELECTED_DRIVE(channel).id_drive[10+i] = (serial_number[i*2] << 8) | serial_number[i*2 + 1]; } for (i = 20; i <= 22; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; const char* firmware = "ALPHA1 "; for (i = 0; i < strlen(firmware)/2; i++) { BX_SELECTED_DRIVE(channel).id_drive[23+i] = (firmware[i*2] << 8) | firmware[i*2 + 1]; } BX_ASSERT((23+i) == 27); for (i = 0; i < strlen((char *) BX_SELECTED_MODEL(channel))/2; i++) { BX_SELECTED_DRIVE(channel).id_drive[27+i] = (BX_SELECTED_MODEL(channel)[i*2] << 8) | BX_SELECTED_MODEL(channel)[i*2 + 1]; } BX_ASSERT((27+i) == 47); BX_SELECTED_DRIVE(channel).id_drive[47] = 0; BX_SELECTED_DRIVE(channel).id_drive[48] = 1; // 32 bits access BX_SELECTED_DRIVE(channel).id_drive[49] = (1 << 9); // LBA supported BX_SELECTED_DRIVE(channel).id_drive[50] = 0; BX_SELECTED_DRIVE(channel).id_drive[51] = 0; BX_SELECTED_DRIVE(channel).id_drive[52] = 0; BX_SELECTED_DRIVE(channel).id_drive[53] = 3; // words 64-70, 54-58 valid for (i = 54; i <= 62; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // copied from CFA540A BX_SELECTED_DRIVE(channel).id_drive[63] = 0x0103; // variable (DMA stuff) BX_SELECTED_DRIVE(channel).id_drive[64] = 0x0001; // PIO BX_SELECTED_DRIVE(channel).id_drive[65] = 0x00b4; BX_SELECTED_DRIVE(channel).id_drive[66] = 0x00b4; BX_SELECTED_DRIVE(channel).id_drive[67] = 0x012c; BX_SELECTED_DRIVE(channel).id_drive[68] = 0x00b4; BX_SELECTED_DRIVE(channel).id_drive[69] = 0; BX_SELECTED_DRIVE(channel).id_drive[70] = 0; BX_SELECTED_DRIVE(channel).id_drive[71] = 30; // faked BX_SELECTED_DRIVE(channel).id_drive[72] = 30; // faked BX_SELECTED_DRIVE(channel).id_drive[73] = 0; BX_SELECTED_DRIVE(channel).id_drive[74] = 0; BX_SELECTED_DRIVE(channel).id_drive[75] = 0; for (i = 76; i <= 79; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; BX_SELECTED_DRIVE(channel).id_drive[80] = 0x1e; // supports up to ATA/ATAPI-4 BX_SELECTED_DRIVE(channel).id_drive[81] = 0; BX_SELECTED_DRIVE(channel).id_drive[82] = 0; BX_SELECTED_DRIVE(channel).id_drive[83] = 0; BX_SELECTED_DRIVE(channel).id_drive[84] = 0; BX_SELECTED_DRIVE(channel).id_drive[85] = 0; BX_SELECTED_DRIVE(channel).id_drive[86] = 0; BX_SELECTED_DRIVE(channel).id_drive[87] = 0; BX_SELECTED_DRIVE(channel).id_drive[88] = 0; for (i = 89; i <= 126; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; BX_SELECTED_DRIVE(channel).id_drive[127] = 0; BX_SELECTED_DRIVE(channel).id_drive[128] = 0; for (i = 129; i <= 159; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; for (i = 160; i <= 255; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // now convert the id_drive array (native 256 word format) to // the controller buffer (512 bytes) Bit16u temp16; for (i = 0; i <= 255; i++) { temp16 = BX_SELECTED_DRIVE(channel).id_drive[i]; BX_SELECTED_CONTROLLER(channel).buffer[i*2] = temp16 & 0x00ff; BX_SELECTED_CONTROLLER(channel).buffer[i*2+1] = temp16 >> 8; } } void bx_hard_drive_c::identify_drive(Bit8u channel) { unsigned i; Bit32u temp32; Bit16u temp16; #if defined(CONNER_CFA540A) BX_SELECTED_DRIVE(channel).id_drive[0] = 0x0c5a; BX_SELECTED_DRIVE(channel).id_drive[1] = 0x0418; BX_SELECTED_DRIVE(channel).id_drive[2] = 0; BX_SELECTED_DRIVE(channel).id_drive[3] = BX_SELECTED_DRIVE(channel).hard_drive->heads; BX_SELECTED_DRIVE(channel).id_drive[4] = 0x9fb7; BX_SELECTED_DRIVE(channel).id_drive[5] = 0x0289; BX_SELECTED_DRIVE(channel).id_drive[6] = BX_SELECTED_DRIVE(channel).hard_drive->sectors; BX_SELECTED_DRIVE(channel).id_drive[7] = 0x0030; BX_SELECTED_DRIVE(channel).id_drive[8] = 0x000a; BX_SELECTED_DRIVE(channel).id_drive[9] = 0x0000; char* serial_number = " CA00GSQ\0\0\0\0\0\0\0\0\0\0\0\0"; for (i = 0; i < 10; i++) { BX_SELECTED_DRIVE(channel).id_drive[10+i] = (serial_number[i*2] << 8) | serial_number[i*2 + 1]; } BX_SELECTED_DRIVE(channel).id_drive[20] = 3; BX_SELECTED_DRIVE(channel).id_drive[21] = 512; // 512 Sectors = 256kB cache BX_SELECTED_DRIVE(channel).id_drive[22] = 4; char* firmware = "8FT054 "; for (i = 0; i < strlen(firmware)/2; i++) { BX_SELECTED_DRIVE(channel).id_drive[23+i] = (firmware[i*2] << 8) | firmware[i*2 + 1]; } BX_ASSERT((23+i) == 27); char* model = "Conner Peripherals 540MB - CFA540A "; for (i = 0; i < strlen(model)/2; i++) { BX_SELECTED_DRIVE(channel).id_drive[27+i] = (model[i*2] << 8) | model[i*2 + 1]; } BX_ASSERT((27+i) == 47); BX_SELECTED_DRIVE(channel).id_drive[47] = 0x8080; // multiple mode identification BX_SELECTED_DRIVE(channel).id_drive[48] = 0; BX_SELECTED_DRIVE(channel).id_drive[49] = 0x0f01; BX_SELECTED_DRIVE(channel).id_drive[50] = 0; BX_SELECTED_DRIVE(channel).id_drive[51] = 0; BX_SELECTED_DRIVE(channel).id_drive[52] = 0x0002; BX_SELECTED_DRIVE(channel).id_drive[53] = 0x0003; BX_SELECTED_DRIVE(channel).id_drive[54] = 0x0418; BX_SELECTED_DRIVE(channel).id_drive[55] = BX_SELECTED_DRIVE(channel).hard_drive->heads; BX_SELECTED_DRIVE(channel).id_drive[56] = BX_SELECTED_DRIVE(channel).hard_drive->sectors; BX_SELECTED_DRIVE(channel).id_drive[57] = 0x1e80; BX_SELECTED_DRIVE(channel).id_drive[58] = 0x0010; BX_SELECTED_DRIVE(channel).id_drive[59] = 0x0100 | BX_SELECTED_CONTROLLER(channel).sectors_per_block; BX_SELECTED_DRIVE(channel).id_drive[60] = 0x20e0; BX_SELECTED_DRIVE(channel).id_drive[61] = 0x0010; BX_SELECTED_DRIVE(channel).id_drive[62] = 0; BX_SELECTED_DRIVE(channel).id_drive[63] = 0x0103; // variable (DMA stuff) BX_SELECTED_DRIVE(channel).id_drive[64] = 0x0001; // PIO BX_SELECTED_DRIVE(channel).id_drive[65] = 0x00b4; BX_SELECTED_DRIVE(channel).id_drive[66] = 0x00b4; BX_SELECTED_DRIVE(channel).id_drive[67] = 0x012c; BX_SELECTED_DRIVE(channel).id_drive[68] = 0x00b4; for (i = 69; i <= 79; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; BX_SELECTED_DRIVE(channel).id_drive[80] = 0; BX_SELECTED_DRIVE(channel).id_drive[81] = 0; BX_SELECTED_DRIVE(channel).id_drive[82] = 0; BX_SELECTED_DRIVE(channel).id_drive[83] = 0; BX_SELECTED_DRIVE(channel).id_drive[84] = 0; BX_SELECTED_DRIVE(channel).id_drive[85] = 0; BX_SELECTED_DRIVE(channel).id_drive[86] = 0; BX_SELECTED_DRIVE(channel).id_drive[87] = 0; for (i = 88; i <= 127; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; BX_SELECTED_DRIVE(channel).id_drive[128] = 0x0418; BX_SELECTED_DRIVE(channel).id_drive[129] = 0x103f; BX_SELECTED_DRIVE(channel).id_drive[130] = 0x0418; BX_SELECTED_DRIVE(channel).id_drive[131] = 0x103f; BX_SELECTED_DRIVE(channel).id_drive[132] = 0x0004; BX_SELECTED_DRIVE(channel).id_drive[133] = 0xffff; BX_SELECTED_DRIVE(channel).id_drive[134] = 0; BX_SELECTED_DRIVE(channel).id_drive[135] = 0x5050; for (i = 136; i <= 144; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; BX_SELECTED_DRIVE(channel).id_drive[145] = 0x302e; BX_SELECTED_DRIVE(channel).id_drive[146] = 0x3245; BX_SELECTED_DRIVE(channel).id_drive[147] = 0x2020; BX_SELECTED_DRIVE(channel).id_drive[148] = 0x2020; for (i = 149; i <= 255; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; #else // Identify Drive command return values definition // // This code is rehashed from some that was donated. // I'm using ANSI X3.221-1994, AT Attachment Interface for Disk Drives // and X3T10 2008D Working Draft for ATA-3 // Word 0: general config bit-significant info // Note: bits 1-5 and 8-14 are now "Vendor specific (obsolete)" // bit 15: 0=ATA device // 1=ATAPI device // bit 14: 1=format speed tolerance gap required // bit 13: 1=track offset option available // bit 12: 1=data strobe offset option available // bit 11: 1=rotational speed tolerance is > 0,5% (typo?) // bit 10: 1=disk transfer rate > 10Mbs // bit 9: 1=disk transfer rate > 5Mbs but <= 10Mbs // bit 8: 1=disk transfer rate <= 5Mbs // bit 7: 1=removable cartridge drive // bit 6: 1=fixed drive // bit 5: 1=spindle motor control option implemented // bit 4: 1=head switch time > 15 usec // bit 3: 1=not MFM encoded // bit 2: 1=soft sectored // bit 1: 1=hard sectored // bit 0: 0=reserved BX_SELECTED_DRIVE(channel).id_drive[0] = 0x0040; // Word 1: number of user-addressable cylinders in // default translation mode. If the value in words 60-61 // exceed 16,515,072, this word shall contain 16,383. BX_SELECTED_DRIVE(channel).id_drive[1] = BX_SELECTED_DRIVE(channel).hard_drive->cylinders; // Word 2: reserved BX_SELECTED_DRIVE(channel).id_drive[2] = 0; // Word 3: number of user-addressable heads in default // translation mode BX_SELECTED_DRIVE(channel).id_drive[3] = BX_SELECTED_DRIVE(channel).hard_drive->heads; // Word 4: # unformatted bytes per translated track in default xlate mode // Word 5: # unformatted bytes per sector in default xlated mode // Word 6: # user-addressable sectors per track in default xlate mode // Note: words 4,5 are now "Vendor specific (obsolete)" BX_SELECTED_DRIVE(channel).id_drive[4] = (512 * BX_SELECTED_DRIVE(channel).hard_drive->sectors); BX_SELECTED_DRIVE(channel).id_drive[5] = 512; BX_SELECTED_DRIVE(channel).id_drive[6] = BX_SELECTED_DRIVE(channel).hard_drive->sectors; // Word 7-9: Vendor specific for (i=7; i<=9; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // Word 10-19: Serial number (20 ASCII characters, 0000h=not specified) // This field is right justified and padded with spaces (20h). for (i=10; i<=19; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // Word 20: buffer type // 0000h = not specified // 0001h = single ported single sector buffer which is // not capable of simulataneous data xfers to/from // the host and the disk. // 0002h = dual ported multi-sector buffer capable of // simulatenous data xfers to/from the host and disk. // 0003h = dual ported mutli-sector buffer capable of // simulatenous data xfers with a read caching // capability. // 0004h-ffffh = reserved BX_SELECTED_DRIVE(channel).id_drive[20] = 3; // Word 21: buffer size in 512 byte increments, 0000h = not specified BX_SELECTED_DRIVE(channel).id_drive[21] = 512; // 512 Sectors = 256kB cache // Word 22: # of ECC bytes available on read/write long cmds // 0000h = not specified BX_SELECTED_DRIVE(channel).id_drive[22] = 4; // Word 23..26: Firmware revision (8 ascii chars, 0000h=not specified) // This field is left justified and padded with spaces (20h) for (i=23; i<=26; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // Word 27..46: Model number (40 ascii chars, 0000h=not specified) // This field is left justified and padded with spaces (20h) // for (i=27; i<=46; i++) // BX_SELECTED_DRIVE(channel).id_drive[i] = 0; for (i=0; i<20; i++) { BX_SELECTED_DRIVE(channel).id_drive[27+i] = (BX_SELECTED_MODEL(channel)[i*2] << 8) | BX_SELECTED_MODEL(channel)[i*2 + 1]; } // Word 47: 15-8 Vendor unique // 7-0 00h= read/write multiple commands not implemented // xxh= maximum # of sectors that can be transferred // per interrupt on read and write multiple commands BX_SELECTED_DRIVE(channel).id_drive[47] = max_multiple_sectors; // Word 48: 0000h = cannot perform dword IO // 0001h = can perform dword IO BX_SELECTED_DRIVE(channel).id_drive[48] = 1; // Word 49: Capabilities // 15-10: 0 = reserved // 9: 1 = LBA supported // 8: 1 = DMA supported // 7-0: Vendor unique BX_SELECTED_DRIVE(channel).id_drive[49] = 1<<9; // Word 50: Reserved BX_SELECTED_DRIVE(channel).id_drive[50] = 0; // Word 51: 15-8 PIO data transfer cycle timing mode // 7-0 Vendor unique BX_SELECTED_DRIVE(channel).id_drive[51] = 0x200; // Word 52: 15-8 DMA data transfer cycle timing mode // 7-0 Vendor unique BX_SELECTED_DRIVE(channel).id_drive[52] = 0x200; // Word 53: 15-1 Reserved // 0 1=the fields reported in words 54-58 are valid // 0=the fields reported in words 54-58 may be valid BX_SELECTED_DRIVE(channel).id_drive[53] = 0; // Word 54: # of user-addressable cylinders in curr xlate mode // Word 55: # of user-addressable heads in curr xlate mode // Word 56: # of user-addressable sectors/track in curr xlate mode BX_SELECTED_DRIVE(channel).id_drive[54] = BX_SELECTED_DRIVE(channel).hard_drive->cylinders; BX_SELECTED_DRIVE(channel).id_drive[55] = BX_SELECTED_DRIVE(channel).hard_drive->heads; BX_SELECTED_DRIVE(channel).id_drive[56] = BX_SELECTED_DRIVE(channel).hard_drive->sectors; // Word 57-58: Current capacity in sectors // Excludes all sectors used for device specific purposes. temp32 = BX_SELECTED_DRIVE(channel).hard_drive->cylinders * BX_SELECTED_DRIVE(channel).hard_drive->heads * BX_SELECTED_DRIVE(channel).hard_drive->sectors; BX_SELECTED_DRIVE(channel).id_drive[57] = (temp32 & 0xffff); // LSW BX_SELECTED_DRIVE(channel).id_drive[58] = (temp32 >> 16); // MSW // Word 59: 15-9 Reserved // 8 1=multiple sector setting is valid // 7-0 current setting for number of sectors that can be // transferred per interrupt on R/W multiple commands BX_SELECTED_DRIVE(channel).id_drive[59] = 0x0000 | curr_multiple_sectors; // Word 60-61: // If drive supports LBA Mode, these words reflect total # of user // addressable sectors. This value does not depend on the current // drive geometry. If the drive does not support LBA mode, these // words shall be set to 0. Bit32u num_sects = BX_SELECTED_DRIVE(channel).hard_drive->cylinders * BX_SELECTED_DRIVE(channel).hard_drive->heads * BX_SELECTED_DRIVE(channel).hard_drive->sectors; BX_SELECTED_DRIVE(channel).id_drive[60] = num_sects & 0xffff; // LSW BX_SELECTED_DRIVE(channel).id_drive[61] = num_sects >> 16; // MSW // Word 62: 15-8 single word DMA transfer mode active // 7-0 single word DMA transfer modes supported // The low order byte identifies by bit, all the Modes which are // supported e.g., if Mode 0 is supported bit 0 is set. // The high order byte contains a single bit set to indiciate // which mode is active. BX_SELECTED_DRIVE(channel).id_drive[62] = 0x0; // Word 63: 15-8 multiword DMA transfer mode active // 7-0 multiword DMA transfer modes supported // The low order byte identifies by bit, all the Modes which are // supported e.g., if Mode 0 is supported bit 0 is set. // The high order byte contains a single bit set to indiciate // which mode is active. BX_SELECTED_DRIVE(channel).id_drive[63] = 0x0; // Word 64-79 Reserved for (i=64; i<=79; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // Word 80: 15-5 reserved // 4 supports ATA/ATAPI-4 // 3 supports ATA-3 // 2 supports ATA-2 // 1 supports ATA-1 // 0 reserved BX_SELECTED_DRIVE(channel).id_drive[80] = (1 << 2) | (1 << 1); // Word 81: Minor version number BX_SELECTED_DRIVE(channel).id_drive[81] = 0; // Word 82: 15 obsolete // 14 NOP command supported // 13 READ BUFFER command supported // 12 WRITE BUFFER command supported // 11 obsolete // 10 Host protected area feature set supported // 9 DEVICE RESET command supported // 8 SERVICE interrupt supported // 7 release interrupt supported // 6 look-ahead supported // 5 write cache supported // 4 supports PACKET command feature set // 3 supports power management feature set // 2 supports removable media feature set // 1 supports securite mode feature set // 0 support SMART feature set BX_SELECTED_DRIVE(channel).id_drive[82] = 1 << 14; BX_SELECTED_DRIVE(channel).id_drive[83] = 1 << 14; BX_SELECTED_DRIVE(channel).id_drive[84] = 1 << 14; BX_SELECTED_DRIVE(channel).id_drive[85] = 1 << 14; BX_SELECTED_DRIVE(channel).id_drive[86] = 0; BX_SELECTED_DRIVE(channel).id_drive[87] = 1 << 14; for (i=88; i<=127; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // Word 128-159 Vendor unique for (i=128; i<=159; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; // Word 160-255 Reserved for (i=160; i<=255; i++) BX_SELECTED_DRIVE(channel).id_drive[i] = 0; #endif BX_DEBUG(("Drive ID Info. initialized : %04d {%s}", 512, BX_SELECTED_TYPE_STRING(channel))); // now convert the id_drive array (native 256 word format) to // the controller buffer (512 bytes) for (i=0; i<=255; i++) { temp16 = BX_SELECTED_DRIVE(channel).id_drive[i]; BX_SELECTED_CONTROLLER(channel).buffer[i*2] = temp16 & 0x00ff; BX_SELECTED_CONTROLLER(channel).buffer[i*2+1] = temp16 >> 8; } } void BX_CPP_AttrRegparmN(3) bx_hard_drive_c::init_send_atapi_command(Bit8u channel, Bit8u command, int req_length, int alloc_length, bool lazy) { // BX_SELECTED_CONTROLLER(channel).byte_count is a union of BX_SELECTED_CONTROLLER(channel).cylinder_no; // lazy is used to force a data read in the buffer at the next read. if (BX_SELECTED_CONTROLLER(channel).byte_count == 0xffff) BX_SELECTED_CONTROLLER(channel).byte_count = 0xfffe; if ((BX_SELECTED_CONTROLLER(channel).byte_count & 1) && !(alloc_length <= BX_SELECTED_CONTROLLER(channel).byte_count)) { BX_INFO(("Odd byte count (0x%04x) to ATAPI command 0x%02x, using 0x%04x", BX_SELECTED_CONTROLLER(channel).byte_count, command, BX_SELECTED_CONTROLLER(channel).byte_count - 1)); BX_SELECTED_CONTROLLER(channel).byte_count -= 1; } if (BX_SELECTED_CONTROLLER(channel).byte_count == 0) BX_PANIC(("ATAPI command with zero byte count")); if (alloc_length < 0) BX_PANIC(("Allocation length < 0")); if (alloc_length == 0) alloc_length = BX_SELECTED_CONTROLLER(channel).byte_count; BX_SELECTED_CONTROLLER(channel).interrupt_reason.i_o = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.c_d = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 1; BX_SELECTED_CONTROLLER(channel).status.err = 0; // no bytes transfered yet if (lazy) BX_SELECTED_CONTROLLER(channel).buffer_index = 2048; else BX_SELECTED_CONTROLLER(channel).buffer_index = 0; BX_SELECTED_CONTROLLER(channel).drq_index = 0; if (BX_SELECTED_CONTROLLER(channel).byte_count > req_length) BX_SELECTED_CONTROLLER(channel).byte_count = req_length; if (BX_SELECTED_CONTROLLER(channel).byte_count > alloc_length) BX_SELECTED_CONTROLLER(channel).byte_count = alloc_length; BX_SELECTED_DRIVE(channel).atapi.command = command; BX_SELECTED_DRIVE(channel).atapi.drq_bytes = BX_SELECTED_CONTROLLER(channel).byte_count; BX_SELECTED_DRIVE(channel).atapi.total_bytes_remaining = (req_length < alloc_length) ? req_length : alloc_length; // if (lazy) { // // bias drq_bytes and total_bytes_remaining // BX_SELECTED_DRIVE(channel).atapi.drq_bytes += 2048; // BX_SELECTED_DRIVE(channel).atapi.total_bytes_remaining += 2048; // } } void bx_hard_drive_c::atapi_cmd_error(Bit8u channel, sense_t sense_key, asc_t asc) { BX_ERROR(("atapi_cmd_error channel=%02x key=%02x asc=%02x", channel, sense_key, asc)); BX_SELECTED_CONTROLLER(channel).error_register = sense_key << 4; BX_SELECTED_CONTROLLER(channel).interrupt_reason.i_o = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.c_d = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.rel = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.write_fault = 0; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 1; BX_SELECTED_DRIVE(channel).sense.sense_key = sense_key; BX_SELECTED_DRIVE(channel).sense.asc = asc; BX_SELECTED_DRIVE(channel).sense.ascq = 0; } void BX_CPP_AttrRegparmN(1) bx_hard_drive_c::atapi_cmd_nop(Bit8u channel) { BX_SELECTED_CONTROLLER(channel).interrupt_reason.i_o = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.c_d = 1; BX_SELECTED_CONTROLLER(channel).interrupt_reason.rel = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.err = 0; } void bx_hard_drive_c::init_mode_sense_single(Bit8u channel, const void* src, int size) { // Header BX_SELECTED_CONTROLLER(channel).buffer[0] = (size+6) >> 8; BX_SELECTED_CONTROLLER(channel).buffer[1] = (size+6) & 0xff; BX_SELECTED_CONTROLLER(channel).buffer[2] = 0x70; // no media present BX_SELECTED_CONTROLLER(channel).buffer[3] = 0; // reserved BX_SELECTED_CONTROLLER(channel).buffer[4] = 0; // reserved BX_SELECTED_CONTROLLER(channel).buffer[5] = 0; // reserved BX_SELECTED_CONTROLLER(channel).buffer[6] = 0; // reserved BX_SELECTED_CONTROLLER(channel).buffer[7] = 0; // reserved // Data memcpy(BX_SELECTED_CONTROLLER(channel).buffer + 8, src, size); } void BX_CPP_AttrRegparmN(1) bx_hard_drive_c::ready_to_send_atapi(Bit8u channel) { raise_interrupt(channel); } void BX_CPP_AttrRegparmN(1) bx_hard_drive_c::raise_interrupt(Bit8u channel) { BX_DEBUG(("raise_interrupt called, disable_irq = %02x", BX_SELECTED_CONTROLLER(channel).control.disable_irq)); if (!BX_SELECTED_CONTROLLER(channel).control.disable_irq) { BX_DEBUG(("raising interrupt")); } else { BX_DEBUG(("Not raising interrupt")); } if (!BX_SELECTED_CONTROLLER(channel).control.disable_irq) { Bit32u irq = BX_HD_THIS channels[channel].irq; BX_DEBUG(("Raising interrupt %d {%s}", irq, BX_SELECTED_TYPE_STRING(channel))); DEV_pic_raise_irq(irq); } else { if (bx_dbg.disk || (BX_SELECTED_IS_CD(channel) && bx_dbg.cdrom)) BX_INFO(("Interrupt masked {%s}", BX_SELECTED_TYPE_STRING(channel))); } } void bx_hard_drive_c::command_aborted(Bit8u channel, unsigned value) { BX_DEBUG(("aborting on command 0x%02x {%s}", value, BX_SELECTED_TYPE_STRING(channel))); BX_SELECTED_CONTROLLER(channel).current_command = 0; BX_SELECTED_CONTROLLER(channel).status.busy = 0; BX_SELECTED_CONTROLLER(channel).status.drive_ready = 1; BX_SELECTED_CONTROLLER(channel).status.err = 1; BX_SELECTED_CONTROLLER(channel).error_register = 0x04; // command ABORTED BX_SELECTED_CONTROLLER(channel).status.drq = 0; BX_SELECTED_CONTROLLER(channel).status.seek_complete = 0; BX_SELECTED_CONTROLLER(channel).status.corrected_data = 0; BX_SELECTED_CONTROLLER(channel).buffer_index = 0; raise_interrupt(channel); } Bit32u bx_hard_drive_c::get_device_handle(Bit8u channel, Bit8u device) { BX_DEBUG(("get_device_handle %d %d",channel, device)); if ((channel < BX_MAX_ATA_CHANNEL) && (device < 2)) { return ((channel*2) + device); } return BX_MAX_ATA_CHANNEL*2; } Bit32u bx_hard_drive_c::get_first_cd_handle(void) { for (Bit8u channel=0; channel= BX_MAX_ATA_CHANNEL*2 ) return 0; Bit8u channel = handle / 2; Bit8u device = handle % 2; return( BX_HD_THIS channels[channel].drives[device].cdrom.ready ); } unsigned bx_hard_drive_c::set_cd_media_status(Bit32u handle, unsigned status) { BX_DEBUG (("set_cd_media_status handle=%d status=%d", handle, status)); if ( handle >= BX_MAX_ATA_CHANNEL*2 ) return 0; Bit8u channel = handle / 2; Bit8u device = handle % 2; // if setting to the current value, nothing to do if (status == BX_HD_THIS channels[channel].drives[device].cdrom.ready) return(status); // return 0 if no cdromd is present if (!BX_DRIVE_IS_CD(channel,device)) return(0); if (status == 0) { // eject cdrom if not locked by guest OS if (BX_HD_THIS channels[channel].drives[device].cdrom.locked) return(1); else { #ifdef LOWLEVEL_CDROM BX_HD_THIS channels[channel].drives[device].cdrom.cd->eject_cdrom(); #endif BX_HD_THIS channels[channel].drives[device].cdrom.ready = 0; bx_options.atadevice[channel][device].Ostatus->set(BX_EJECTED); } } else { // insert cdrom #ifdef LOWLEVEL_CDROM if (BX_HD_THIS channels[channel].drives[device].cdrom.cd->insert_cdrom(bx_options.atadevice[channel][device].Opath->getptr())) { BX_INFO(( "Media present in CD-ROM drive")); BX_HD_THIS channels[channel].drives[device].cdrom.ready = 1; BX_HD_THIS channels[channel].drives[device].cdrom.capacity = BX_HD_THIS channels[channel].drives[device].cdrom.cd->capacity(); bx_options.atadevice[channel][device].Ostatus->set(BX_INSERTED); BX_SELECTED_DRIVE(channel).sense.sense_key = SENSE_UNIT_ATTENTION; BX_SELECTED_DRIVE(channel).sense.asc = 0; BX_SELECTED_DRIVE(channel).sense.ascq = 0; raise_interrupt(channel); } else { #endif BX_INFO(( "Could not locate CD-ROM, continuing with media not present")); BX_HD_THIS channels[channel].drives[device].cdrom.ready = 0; bx_options.atadevice[channel][device].Ostatus->set(BX_EJECTED); #ifdef LOWLEVEL_CDROM } #endif } return( BX_HD_THIS channels[channel].drives[device].cdrom.ready ); } /*** default_image_t function definitions ***/ int default_image_t::open (const char* pathname) { return open(pathname, O_RDWR); } int default_image_t::open (const char* pathname, int flags) { fd = ::open(pathname, flags #ifdef O_BINARY | O_BINARY #endif ); if (fd < 0) { return fd; } /* look at size of image file to calculate disk geometry */ struct stat stat_buf; int ret = fstat(fd, &stat_buf); if (ret) { BX_PANIC(("fstat() returns error!")); } return fd; } void default_image_t::close () { if (fd > -1) { ::close(fd); } } off_t default_image_t::lseek (off_t offset, int whence) { return ::lseek(fd, offset, whence); } ssize_t default_image_t::read (void* buf, size_t count) { return ::read(fd, (char*) buf, count); } ssize_t default_image_t::write (const void* buf, size_t count) { return ::write(fd, (char*) buf, count); } char increment_string (char *str, int diff) { // find the last character of the string, and increment it. char *p = str; while (*p != 0) p++; BX_ASSERT (p>str); // choke on zero length strings p--; // point to last character of the string (*p) += diff; // increment to next/previous ascii code. BX_DEBUG(("increment string returning '%s'", str)); return (*p); } /*** concat_image_t function definitions ***/ concat_image_t::concat_image_t () { fd = -1; } void concat_image_t::increment_string (char *str) { ::increment_string(str, +1); } int concat_image_t::open (const char* pathname0) { char *pathname = strdup (pathname0); BX_DEBUG(("concat_image_t.open")); off_t start_offset = 0; for (int i=0; i -1) { ::close(fd); } } off_t concat_image_t::lseek (off_t offset, int whence) { if ((offset % 512) != 0) BX_PANIC( ("lseek HD with offset not multiple of 512")); BX_DEBUG(("concat_image_t.lseek(%d)", whence)); // is this offset in this disk image? if (offset < thismin) { // no, look at previous images for (int i=index-1; i>=0; i--) { if (offset >= start_offset_table[i]) { index = i; fd = fd_table[i]; thismin = start_offset_table[i]; thismax = thismin + length_table[i] - 1; BX_DEBUG(("concat_image_t.lseek to earlier image, index=%d", index)); break; } } } else if (offset > thismax) { // no, look at later images for (int i=index+1; i= length_table[index]) { BX_PANIC(("concat_image_t.lseek to byte %ld failed", (long)offset)); return -1; } seek_was_last_op = 1; return ::lseek(fd, offset, whence); } ssize_t concat_image_t::read (void* buf, size_t count) { if (bx_dbg.disk) BX_DEBUG(("concat_image_t.read %ld bytes", (long)count)); // notice if anyone does sequential read or write without seek in between. // This can be supported pretty easily, but needs additional checks for // end of a partial image. if (!seek_was_last_op) BX_PANIC( ("no seek before read")); return ::read(fd, (char*) buf, count); } ssize_t concat_image_t::write (const void* buf, size_t count) { BX_DEBUG(("concat_image_t.write %ld bytes", (long)count)); // notice if anyone does sequential read or write without seek in between. // This can be supported pretty easily, but needs additional checks for // end of a partial image. if (!seek_was_last_op) BX_PANIC( ("no seek before write")); return ::write(fd, (char*) buf, count); } /*** sparse_image_t function definitions ***/ sparse_image_t::sparse_image_t () { fd = -1; pathname = NULL; #ifdef _POSIX_MAPPED_FILES mmap_header = NULL; #endif pagetable = NULL; } /* void showpagetable(uint32 * pagetable, size_t numpages) { printf("Non null pages: "); for (int i = 0; i < numpages; i++) { if (pagetable[i] != 0xffffffff) { printf("%d ", i); } } printf("\n"); } */ void sparse_image_t::read_header() { BX_ASSERT(sizeof(header) == SPARSE_HEADER_SIZE); int ret = ::read(fd, &header, sizeof(header)); if (-1 == ret) { panic(strerror(errno)); } if (sizeof(header) != ret) { panic("could not read entire header"); } if (dtoh32(header.magic) != SPARSE_HEADER_MAGIC) { panic("failed header magic check"); } if (dtoh32(header.version) != 1) { panic("unknown version in header"); } pagesize = dtoh32(header.pagesize); uint32 numpages = dtoh32(header.numpages); total_size = pagesize; total_size *= numpages; pagesize_shift = 0; while ((pagesize >> pagesize_shift) > 1) pagesize_shift++; if ((uint32)(1 << pagesize_shift) != pagesize) { panic("failed block size header check"); } pagesize_mask = pagesize - 1; size_t preamble_size = (sizeof(uint32) * numpages) + sizeof(header); data_start = 0; while (data_start < preamble_size) data_start += pagesize; bool did_mmap = false; #ifdef _POSIX_MAPPED_FILES // Try to memory map from the beginning of the file (0 is trivially a page multiple) void * mmap_header = mmap(NULL, preamble_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (mmap_header == MAP_FAILED) { BX_INFO(("failed to mmap sparse disk file - using conventional file access")); mmap_header = NULL; } else { mmap_length = preamble_size; did_mmap = true; pagetable = ((uint32 *) (((uint8 *) mmap_header) + sizeof(header))); // system_pagesize = getpagesize(); system_pagesize_mask = getpagesize() - 1; } #endif if (!did_mmap) { pagetable = new uint32[numpages]; if (pagetable == NULL) { panic("could not allocate memory for sparse disk block table"); } ret = ::read(fd, pagetable, sizeof(uint32) * numpages); if (-1 == ret) { panic(strerror(errno)); } if ((int)(sizeof(uint32) * numpages) != ret) { panic("could not read entire block table"); } } } int sparse_image_t::open (const char* pathname0) { pathname = strdup(pathname0); BX_DEBUG(("sparse_image_t.open")); fd = ::open(pathname, O_RDWR #ifdef O_BINARY | O_BINARY #endif ); if (fd < 0) { // open failed. return -1; } BX_DEBUG(("sparse_image: open image %s", pathname)); read_header(); struct stat stat_buf; if (0 != fstat(fd, &stat_buf)) panic(("fstat() returns error!")); underlying_filesize = stat_buf.st_size; if ((underlying_filesize % pagesize) != 0) panic("size of sparse disk image is not multiple of page size"); underlying_current_filepos = 0; if (-1 == ::lseek(fd, 0, SEEK_SET)) panic("error while seeking to start of file"); lseek(0, SEEK_SET); //showpagetable(pagetable, header.numpages); char * parentpathname = strdup(pathname); char lastchar = ::increment_string(parentpathname, -1); if ((lastchar >= '0') && (lastchar <= '9')) { struct stat stat_buf; if (0 == stat(parentpathname, &stat_buf)) { parent_image = new sparse_image_t(); int ret = parent_image->open(parentpathname); if (ret != 0) return ret; if ( (parent_image->pagesize != pagesize) || (parent_image->total_size != total_size)) { panic("child drive image does not have same page count/page size configuration"); } } } if (parentpathname != NULL) free(parentpathname); return 0; // success. } void sparse_image_t::close () { BX_DEBUG(("concat_image_t.close")); if (pathname != NULL) { free(pathname); } #ifdef _POSIX_MAPPED_FILES if (mmap_header != NULL) { int ret = munmap(mmap_header, mmap_length); if (ret != 0) BX_INFO(("failed to un-memory map sparse disk file")); } pagetable = NULL; // We didn't malloc it #endif if (fd > -1) { ::close(fd); } if (pagetable != NULL) { delete [] pagetable; } if (parent_image != NULL) { delete parent_image; } } off_t sparse_image_t::lseek (off_t offset, int whence) { //showpagetable(pagetable, header.numpages); if ((offset % 512) != 0) BX_PANIC( ("lseek HD with offset not multiple of 512")); if (whence != SEEK_SET) BX_PANIC( ("lseek HD with whence not SEEK_SET")); BX_DEBUG(("sparse_image_t.lseek(%d)", whence)); if (offset > total_size) { BX_PANIC(("sparse_image_t.lseek to byte %ld failed", (long)offset)); return -1; } //printf("Seeking to position %ld\n", (long) offset); set_virtual_page(offset >> pagesize_shift); position_page_offset = offset & pagesize_mask; return 0; } inline off_t sparse_image_t::get_physical_offset() { off_t physical_offset = data_start; physical_offset += (position_physical_page << pagesize_shift); physical_offset += position_page_offset; return physical_offset; } inline void sparse_image_t::set_virtual_page(uint32 new_virtual_page) { position_virtual_page = new_virtual_page; position_physical_page = dtoh32(pagetable[position_virtual_page]); } ssize_t sparse_image_t::read_page_fragment(uint32 read_virtual_page, uint32 read_page_offset, size_t read_size, void * buf) { if (read_virtual_page != position_virtual_page) { set_virtual_page(read_virtual_page); } position_page_offset = read_page_offset; if (position_physical_page == SPARSE_PAGE_NOT_ALLOCATED) { if (parent_image != NULL) { return parent_image->read_page_fragment(read_virtual_page, read_page_offset, read_size, buf); } else { memset(buf, read_size, 0); } } else { off_t physical_offset = get_physical_offset(); if (physical_offset != underlying_current_filepos) { int ret = ::lseek(fd, physical_offset, SEEK_SET); // underlying_current_filepos update deferred if (ret == -1) panic(strerror(errno)); } //printf("Reading %s at position %ld size %d\n", pathname, (long) physical_offset, (long) read_size); ssize_t readret = ::read(fd, buf, read_size); if (readret == -1) { panic(strerror(errno)); } if ((size_t)readret != read_size) { panic("could not read block contents from file"); } underlying_current_filepos = physical_offset + read_size; } return read_size; } ssize_t sparse_image_t::read(void* buf, size_t count) { //showpagetable(pagetable, header.numpages); ssize_t total_read = 0; if (bx_dbg.disk) BX_DEBUG(("sparse_image_t.read %ld bytes", (long)count)); while (count != 0) { size_t can_read = pagesize - position_page_offset; if (count < can_read) can_read = count; BX_ASSERT (can_read != 0); size_t was_read = read_page_fragment(position_virtual_page, position_page_offset, can_read, buf); BX_ASSERT(was_read == can_read); total_read += can_read; position_page_offset += can_read; if (position_page_offset == pagesize) { position_page_offset = 0; set_virtual_page(position_virtual_page + 1); } BX_ASSERT(position_page_offset < pagesize); buf = (((uint8 *) buf) + can_read); count -= can_read; } return total_read; } void sparse_image_t::panic(const char * message) { char buffer[1024]; if (message == NULL) { snprintf(buffer, sizeof(buffer), "error with sparse disk image %s", pathname); } else { snprintf(buffer, sizeof(buffer), "error with sparse disk image %s - %s", pathname, message); } BX_PANIC((buffer)); } ssize_t sparse_image_t::write (const void* buf, size_t count) { //showpagetable(pagetable, header.numpages); ssize_t total_written = 0; uint32 update_pagetable_start = position_virtual_page; uint32 update_pagetable_count = 0; if (bx_dbg.disk) BX_DEBUG(("sparse_image_t.write %ld bytes", (long)count)); while (count != 0) { size_t can_write = pagesize - position_page_offset; if (count < can_write) can_write = count; BX_ASSERT (can_write != 0); if (position_physical_page == SPARSE_PAGE_NOT_ALLOCATED) { // We just add on another page at the end of the file // Reclamation, compaction etc should currently be done off-line size_t data_size = underlying_filesize - data_start; BX_ASSERT((data_size % pagesize) == 0); uint32 data_size_pages = data_size / pagesize; uint32 next_data_page = data_size_pages; pagetable[position_virtual_page] = htod32(next_data_page); position_physical_page = next_data_page; off_t page_file_start = data_start + (position_physical_page << pagesize_shift); if (parent_image != NULL) { // If we have a parent, we must merge our portion with the parent void * writebuffer = NULL; if (can_write == pagesize) { writebuffer = (void *) buf; } else { writebuffer = malloc(pagesize); if (writebuffer == NULL) panic("Cannot allocate sufficient memory for page-merge in write"); // Read entire page - could optimize, but simple for now parent_image->read_page_fragment(position_virtual_page, 0, pagesize, writebuffer); void * dest_start = ((uint8 *) writebuffer) + position_page_offset; memcpy(dest_start, buf, can_write); } int ret; ret = ::lseek(fd, page_file_start, SEEK_SET); // underlying_current_filepos update deferred if (-1 == ret) panic(strerror(errno)); ret = ::write(fd, writebuffer, pagesize); if (-1 == ret) panic(strerror(errno)); if (pagesize != (uint32)ret) panic("failed to write entire merged page to disk"); if (can_write != pagesize) { free(writebuffer); } } else { // We need to write a zero page because read has been returning zeroes // We seek as close to the page end as possible, and then write a little // This produces a sparse file which has blanks // Also very quick, even when pagesize is massive int ret; ret = ::lseek(fd, page_file_start + pagesize - 4, SEEK_SET); // underlying_current_filepos update deferred if (-1 == ret) panic(strerror(errno)); uint32 zero = 0; ret = ::write(fd, &zero, 4); if (-1 == ret) panic(strerror(errno)); if (4 != ret) panic("failed to write entire blank page to disk"); } update_pagetable_count = (position_virtual_page - update_pagetable_start) + 1; underlying_filesize = underlying_current_filepos = page_file_start + pagesize; } BX_ASSERT(position_physical_page != SPARSE_PAGE_NOT_ALLOCATED); off_t physical_offset = get_physical_offset(); if (physical_offset != underlying_current_filepos) { int ret = ::lseek(fd, physical_offset, SEEK_SET); // underlying_current_filepos update deferred if (ret == -1) panic(strerror(errno)); } //printf("Writing at position %ld size %d\n", (long) physical_offset, can_write); ssize_t writeret = ::write(fd, buf, can_write); if (writeret == -1) { panic(strerror(errno)); } if ((size_t)writeret != can_write) { panic("could not write block contents to file"); } underlying_current_filepos = physical_offset + can_write; total_written += can_write; position_page_offset += can_write; if (position_page_offset == pagesize) { position_page_offset = 0; set_virtual_page(position_virtual_page + 1); } BX_ASSERT(position_page_offset < pagesize); buf = (((uint8 *) buf) + can_write); count -= can_write; } if (update_pagetable_count != 0) { bool done = false; off_t pagetable_write_from = sizeof(header) + (sizeof(uint32) * update_pagetable_start); size_t write_bytecount = update_pagetable_count * sizeof(uint32); #ifdef _POSIX_MAPPED_FILES if (mmap_header != NULL) { // Sync from the beginning of the page size_t system_page_offset = pagetable_write_from & system_pagesize_mask; void * start = ((uint8 *) mmap_header + pagetable_write_from - system_page_offset); int ret = msync(start, system_page_offset + write_bytecount, MS_ASYNC); if (ret != 0) panic(strerror(errno)); done = true; } #endif if (!done) { int ret = ::lseek(fd, pagetable_write_from, SEEK_SET); // underlying_current_filepos update deferred if (ret == -1) panic(strerror(errno)); //printf("Writing header at position %ld size %ld\n", (long) pagetable_write_from, (long) write_bytecount); ret = ::write(fd, &pagetable[update_pagetable_start], write_bytecount); if (ret == -1) panic(strerror(errno)); if ((size_t)ret != write_bytecount) panic("could not write entire updated block header"); underlying_current_filepos = pagetable_write_from + write_bytecount; } } return total_written; } #if DLL_HD_SUPPORT /*** dll_image_t function definitions ***/ /* function vdisk_open(path:PChar;numclusters,clustersize:integer):integer; procedure vdisk_read(vunit:integer;blk:integer;var buf:TBlock); procedure vdisk_write(vunit:integer;blk:integer;var buf:TBlock); procedure vdisk_close(vunit:integer); */ HINSTANCE hlib_vdisk = 0; int (*vdisk_open) (const char *path,int numclusters,int clustersize); void (*vdisk_read) (int vunit,int blk,void *buf); void (*vdisk_write) (int vunit,int blk,const void *buf); void (*vdisk_close) (int vunit); int dll_image_t::open (const char* pathname) { if (hlib_vdisk == 0) { hlib_vdisk = LoadLibrary("vdisk.dll"); if (hlib_vdisk != 0) { vdisk_read = (void (*)(int,int,void*)) GetProcAddress(hlib_vdisk,"vdisk_read"); vdisk_write = (void (*)(int,int,const void*)) GetProcAddress(hlib_vdisk,"vdisk_write"); vdisk_open = (int (*)(const char *,int,int)) GetProcAddress(hlib_vdisk,"vdisk_open"); vdisk_close = (void (*)(int)) GetProcAddress(hlib_vdisk,"vdisk_close"); } } if (hlib_vdisk != 0) { vunit = vdisk_open(pathname,0x10000,64); vblk = 0; } else { vunit = -2; } return vunit; } void dll_image_t::close () { if (vunit >= 0 && hlib_vdisk != 0) { vdisk_close(vunit); } } off_t dll_image_t::lseek (off_t offset, int whence) { vblk = offset >> 9; return 0; } ssize_t dll_image_t::read (void* buf, size_t count) { if (vunit >= 0 && hlib_vdisk != 0) { vdisk_read(vunit,vblk,buf); return count; } else { return -1; } } ssize_t dll_image_t::write (const void* buf, size_t count) { if (vunit >= 0 && hlib_vdisk != 0) { vdisk_write(vunit,vblk,buf); return count; } else { return -1; } } #endif // DLL_HD_SUPPORT error_recovery_t::error_recovery_t () { if (sizeof(error_recovery_t) != 8) { BX_PANIC(("error_recovery_t has size != 8")); } data[0] = 0x01; data[1] = 0x06; data[2] = 0x00; data[3] = 0x05; // Try to recover 5 times data[4] = 0x00; data[5] = 0x00; data[6] = 0x00; data[7] = 0x00; } uint16 BX_CPP_AttrRegparmN(1) read_16bit(const uint8* buf) { return (buf[0] << 8) | buf[1]; } uint32 BX_CPP_AttrRegparmN(1) read_32bit(const uint8* buf) { return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; } // redolog implementation redolog_t::redolog_t () { fd = -1; catalog = NULL; bitmap = NULL; extent_index = (Bit32u)0; extent_offset = (Bit32u)0; extent_next = (Bit32u)0; } void redolog_t::print_header() { BX_INFO(("redolog : Standard Header : magic='%s', type='%s', subtype='%s', version = %d.%d", header.standard.magic, header.standard.type, header.standard.subtype, dtoh32(header.standard.version)/0x10000, dtoh32(header.standard.version)%0x10000)); BX_INFO(("redolog : Specific Header : #entries=%d, bitmap size=%d, exent size = %d disk size = %lld", dtoh32(header.specific.catalog), dtoh32(header.specific.bitmap), dtoh32(header.specific.extent), dtoh64(header.specific.disk))); } int redolog_t::make_header (const char* type, Bit64u size) { Bit32u entries, extent_size, bitmap_size; Bit64u maxsize; Bit32u flip=0; // Set standard header values strcpy((char*)header.standard.magic, STANDARD_HEADER_MAGIC); strcpy((char*)header.standard.type, REDOLOG_TYPE); strcpy((char*)header.standard.subtype, type); header.standard.version = htod32(STANDARD_HEADER_VERSION); header.standard.header = htod32(STANDARD_HEADER_SIZE); entries = 512; bitmap_size = 1; // Compute #entries and extent size values do { extent_size = 8 * bitmap_size * 512; header.specific.catalog = htod32(entries); header.specific.bitmap = htod32(bitmap_size); header.specific.extent = htod32(extent_size); maxsize = (Bit64u)entries * (Bit64u)extent_size; flip++; if(flip&0x01) bitmap_size *= 2; else entries *= 2; } while (maxsize < size); header.specific.disk = htod64(size); print_header(); catalog = (Bit32u*)malloc(dtoh32(header.specific.catalog) * sizeof(Bit32u)); bitmap = (Bit8u*)malloc(dtoh32(header.specific.bitmap)); if ((catalog == NULL) || (bitmap==NULL)) BX_PANIC(("redolog : could not malloc catalog or bitmap")); for (Bit32u i=0; i= extent_next) extent_next = dtoh32(catalog[i]) + 1; } } BX_INFO(("redolog : next extent will be at index %d",extent_next)); // memory used for storing bitmaps bitmap = (Bit8u *)malloc(dtoh32(header.specific.bitmap)); bitmap_blocs = 1 + (dtoh32(header.specific.bitmap) - 1) / 512; extent_blocs = 1 + (dtoh32(header.specific.extent) - 1) / 512; BX_DEBUG(("redolog : each bitmap is %d blocs", bitmap_blocs)); BX_DEBUG(("redolog : each extent is %d blocs", extent_blocs)); return 0; } void redolog_t::close () { if (fd >= 0) ::close(fd); if (catalog != NULL) free(catalog); if (bitmap != NULL) free(bitmap); } off_t redolog_t::lseek (off_t offset, int whence) { if ((offset % 512) != 0) { BX_PANIC( ("redolog : lseek HD with offset not multiple of 512")); return -1; } if (whence != SEEK_SET) { BX_PANIC( ("redolog : lseek HD with whence not SEEK_SET")); return -1; } if (offset > (off_t)dtoh64(header.specific.disk)) { BX_PANIC(("redolog : lseek to byte %ld failed", (long)offset)); return -1; } extent_index = offset / dtoh32(header.specific.extent); extent_offset = (offset % dtoh32(header.specific.extent)) / 512; BX_DEBUG(("redolog : lseeking extent index %d, offset %d",extent_index, extent_offset)); return offset; } ssize_t redolog_t::read (void* buf, size_t count) { off_t bloc_offset, bitmap_offset; if (count != 512) BX_PANIC( ("redolog : read HD with count not 512")); BX_DEBUG(("redolog : reading index %d, mapping to %d", extent_index, dtoh32(catalog[extent_index]))); if (dtoh32(catalog[extent_index]) == REDOLOG_PAGE_NOT_ALLOCATED) { // page not allocated return 0; } bitmap_offset = (off_t)STANDARD_HEADER_SIZE + (dtoh32(header.specific.catalog) * sizeof(Bit32u)); bitmap_offset += (off_t)512 * dtoh32(catalog[extent_index]) * (extent_blocs + bitmap_blocs); bloc_offset = bitmap_offset + ((off_t)512 * (bitmap_blocs + extent_offset)); BX_DEBUG(("redolog : bitmap offset is %x", (Bit32u)bitmap_offset)); BX_DEBUG(("redolog : bloc offset is %x", (Bit32u)bloc_offset)); // FIXME if same extent_index as before we can skip bitmap read ::lseek(fd, bitmap_offset, SEEK_SET); if (::read(fd, bitmap, dtoh32(header.specific.bitmap)) != (ssize_t)dtoh32(header.specific.bitmap)) { BX_PANIC(("redolog : failed to read bitmap for extent %d", extent_index)); return 0; } if ( ((bitmap[extent_offset/8] >> (extent_offset%8)) & 0x01) == 0x00 ) { BX_DEBUG(("read not in redolog")); // bitmap says bloc not in reloglog return 0; } ::lseek(fd, bloc_offset, SEEK_SET); return (::read(fd, buf, count)); } ssize_t redolog_t::write (const void* buf, size_t count) { Bit32u i; off_t bloc_offset, bitmap_offset, catalog_offset; ssize_t written; bx_bool update_catalog = 0; if (count != 512) BX_PANIC( ("redolog : write HD with count not 512")); BX_DEBUG(("redolog : writing index %d, mapping to %d", extent_index, dtoh32(catalog[extent_index]))); if (dtoh32(catalog[extent_index]) == REDOLOG_PAGE_NOT_ALLOCATED) { if(extent_next >= dtoh32(header.specific.catalog)) { BX_PANIC(("redolog : can't allocate new extent... catalog is full")); return 0; } BX_DEBUG(("redolog : allocating new extent at %d", extent_next)); // Extent not allocated, allocate new catalog[extent_index] = htod32(extent_next); extent_next += 1; char *zerobuffer = (char*)malloc(512); memset(zerobuffer, 0, 512); // Write bitmap bitmap_offset = (off_t)STANDARD_HEADER_SIZE + (dtoh32(header.specific.catalog) * sizeof(Bit32u)); bitmap_offset += (off_t)512 * dtoh32(catalog[extent_index]) * (extent_blocs + bitmap_blocs); ::lseek(fd, bitmap_offset, SEEK_SET); for(i=0; i> (extent_offset%8)) & 0x01) == 0x00 ) { bitmap[extent_offset/8] |= 1 << (extent_offset%8); ::lseek(fd, bitmap_offset, SEEK_SET); ::write(fd, bitmap, dtoh32(header.specific.bitmap)); } // Write catalog if (update_catalog) { // FIXME if mmap catalog_offset = (off_t)STANDARD_HEADER_SIZE + (extent_index * sizeof(Bit32u)); BX_DEBUG(("redolog : writing catalog at offset %x", (Bit32u)catalog_offset)); ::lseek(fd, catalog_offset, SEEK_SET); ::write(fd, &catalog[extent_index], sizeof(Bit32u)); } return written; } /*** growing_image_t function definitions ***/ growing_image_t::growing_image_t(Bit64u _size) { redolog = new redolog_t(); size = _size; } int growing_image_t::open (const char* pathname) { int filedes = redolog->open(pathname,REDOLOG_SUBTYPE_GROWING,size); BX_INFO(("'growing' disk opened, growing file is '%s'", pathname)); return filedes; } void growing_image_t::close () { redolog->close(); } off_t growing_image_t::lseek (off_t offset, int whence) { return redolog->lseek(offset, whence); } ssize_t growing_image_t::read (void* buf, size_t count) { memset(buf, 0, count); redolog->read((char*) buf, count); return count; } ssize_t growing_image_t::write (const void* buf, size_t count) { return redolog->write((char*) buf, count); } /*** undoable_image_t function definitions ***/ undoable_image_t::undoable_image_t(Bit64u _size, const char* _redolog_name) { redolog = new redolog_t(); ro_disk = new default_image_t(); size = _size; redolog_name = NULL; if (_redolog_name != NULL) { if (strcmp(_redolog_name,"") != 0) { redolog_name = strdup(_redolog_name); } } } int undoable_image_t::open (const char* pathname) { char *logname=NULL; if (ro_disk->open(pathname, O_RDONLY)<0) return -1; // if redolog name was set if ( redolog_name != NULL) { if ( strcmp(redolog_name, "") != 0 ) { logname = (char*)malloc(strlen(redolog_name) + 1); strcpy (logname, redolog_name); } } // Otherwise we make up the redolog filename from the pathname if ( logname == NULL) { logname = (char*)malloc(strlen(pathname) + UNDOABLE_REDOLOG_EXTENSION_LENGTH + 1); sprintf (logname, "%s%s", pathname, UNDOABLE_REDOLOG_EXTENSION); } if (redolog->open(logname,REDOLOG_SUBTYPE_UNDOABLE,size) < 0) { if (redolog->create(logname, REDOLOG_SUBTYPE_UNDOABLE, size) < 0) { BX_PANIC(("Can't open or create redolog '%s'",logname)); return -1; } } BX_INFO(("'undoable' disk opened: ro-file is '%s', redolog is '%s'", pathname, logname)); free(logname); return 0; } void undoable_image_t::close () { redolog->close(); ro_disk->close(); if (redolog_name!=NULL) free(redolog_name); } off_t undoable_image_t::lseek (off_t offset, int whence) { redolog->lseek(offset, whence); return ro_disk->lseek(offset, whence); } ssize_t undoable_image_t::read (void* buf, size_t count) { // This should be fixed if count != 512 if ((size_t)redolog->read((char*) buf, count) != count) return ro_disk->read((char*) buf, count); else return count; } ssize_t undoable_image_t::write (const void* buf, size_t count) { return redolog->write((char*) buf, count); } /*** volatile_image_t function definitions ***/ volatile_image_t::volatile_image_t(Bit64u _size, const char* _redolog_name) { redolog = new redolog_t(); ro_disk = new default_image_t(); size = _size; redolog_temp = NULL; redolog_name = NULL; if (_redolog_name != NULL) { if (strcmp(_redolog_name,"") != 0) { redolog_name = strdup(_redolog_name); } } } int volatile_image_t::open (const char* pathname) { int filedes; const char *logname=NULL; if (ro_disk->open(pathname, O_RDONLY)<0) return -1; // if redolog name was set if ( redolog_name != NULL) { if ( strcmp(redolog_name, "") != 0 ) { logname = redolog_name; } } // otherwise use pathname as template if (logname == NULL) { logname = pathname; } redolog_temp = (char*)malloc(strlen(logname) + VOLATILE_REDOLOG_EXTENSION_LENGTH + 1); sprintf (redolog_temp, "%s%s", logname, VOLATILE_REDOLOG_EXTENSION); filedes = mkstemp (redolog_temp); if (filedes < 0) { BX_PANIC(("Can't create volatile redolog '%s'", redolog_temp)); return -1; } if (redolog->create(filedes, REDOLOG_SUBTYPE_VOLATILE, size) < 0) { BX_PANIC(("Can't create volatile redolog '%s'", redolog_temp)); return -1; } #if (!defined(WIN32)) && !BX_WITH_MACOS // on unix it is legal to delete an open file unlink(redolog_temp); #endif BX_INFO(("'volatile' disk opened: ro-file is '%s', redolog is '%s'", pathname, redolog_temp)); return 0; } void volatile_image_t::close () { redolog->close(); ro_disk->close(); #if defined(WIN32) || BX_WITH_MACOS // on non-unix we have to wait till the file is closed to delete it unlink(redolog_temp); #endif if (redolog_temp!=NULL) free(redolog_temp); if (redolog_name!=NULL) free(redolog_name); } off_t volatile_image_t::lseek (off_t offset, int whence) { redolog->lseek(offset, whence); return ro_disk->lseek(offset, whence); } ssize_t volatile_image_t::read (void* buf, size_t count) { // This should be fixed if count != 512 if ((size_t)redolog->read((char*) buf, count) != count) return ro_disk->read((char*) buf, count); else return count; } ssize_t volatile_image_t::write (const void* buf, size_t count) { return redolog->write((char*) buf, count); } #if BX_COMPRESSED_HD_SUPPORT /*** z_ro_image_t function definitions ***/ z_ro_image_t::z_ro_image_t() { offset = (off_t)0; } int z_ro_image_t::open (const char* pathname) { fd = ::open(pathname, O_RDONLY #ifdef O_BINARY | O_BINARY #endif ); if(fd < 0) { BX_PANIC(("Could not open '%s' file", pathname)); return fd; } gzfile = gzdopen(fd, "rb"); } void z_ro_image_t::close () { if (fd > -1) { gzclose(gzfile); // ::close(fd); } } off_t z_ro_image_t::lseek (off_t _offset, int whence) { // Only SEEK_SET supported if (whence != SEEK_SET) { BX_PANIC(("lseek on compressed images : only SEEK_SET supported")); } // Seeking is expensive on compressed files, so we do it // only when necessary, at the latest moment offset = _offset; return offset; } ssize_t z_ro_image_t::read (void* buf, size_t count) { gzseek(gzfile, offset, SEEK_SET); return gzread(gzfile, buf, count); } ssize_t z_ro_image_t::write (const void* buf, size_t count) { BX_PANIC(("z_ro_image: write not supported")); return 0; } /*** z_undoable_image_t function definitions ***/ z_undoable_image_t::z_undoable_image_t(Bit64u _size, const char* _redolog_name) { redolog = new redolog_t(); ro_disk = new z_ro_image_t(); size = _size; redolog_name = NULL; if (_redolog_name != NULL) { if (strcmp(_redolog_name,"") != 0) { redolog_name = strdup(_redolog_name); } } } int z_undoable_image_t::open (const char* pathname) { char *logname=NULL; if (ro_disk->open(pathname)<0) return -1; // If redolog name was set if ( redolog_name != NULL) { if ( strcmp(redolog_name, "") != 0) { logname = (char*)malloc(strlen(redolog_name) + 1); strcpy (logname, redolog_name); } } // Otherwise we make up the redolog filename from the pathname if ( logname == NULL) { logname = (char*)malloc(strlen(pathname) + UNDOABLE_REDOLOG_EXTENSION_LENGTH + 1); sprintf (logname, "%s%s", pathname, UNDOABLE_REDOLOG_EXTENSION); } if (redolog->open(logname,REDOLOG_SUBTYPE_UNDOABLE,size) < 0) { if (redolog->create(logname, REDOLOG_SUBTYPE_UNDOABLE, size) < 0) { BX_PANIC(("Can't open or create redolog '%s'",logname)); return -1; } } BX_INFO(("'z-undoable' disk opened, z-ro-file is '%s', redolog is '%s'", pathname, logname)); free(logname); return 0; } void z_undoable_image_t::close () { redolog->close(); ro_disk->close(); if (redolog_name!=NULL) free(redolog_name); } off_t z_undoable_image_t::lseek (off_t offset, int whence) { redolog->lseek(offset, whence); return ro_disk->lseek(offset, whence); } ssize_t z_undoable_image_t::read (void* buf, size_t count) { // This should be fixed if count != 512 if (redolog->read((char*) buf, count) != count) return ro_disk->read((char*) buf, count); else return count; } ssize_t z_undoable_image_t::write (const void* buf, size_t count) { return redolog->write((char*) buf, count); } /*** z_volatile_image_t function definitions ***/ z_volatile_image_t::z_volatile_image_t(Bit64u _size, const char* _redolog_name) { redolog = new redolog_t(); ro_disk = new z_ro_image_t(); size = _size; redolog_temp = NULL; redolog_name = NULL; if (_redolog_name != NULL) { if (strcmp(_redolog_name,"") != 0) { redolog_name = strdup(_redolog_name); } } } int z_volatile_image_t::open (const char* pathname) { int filedes; const char *logname=NULL; if (ro_disk->open(pathname)<0) return -1; // if redolog name was set if ( redolog_name != NULL) { if ( strcmp(redolog_name, "") !=0 ) { logname = redolog_name; } } // otherwise use pathname as template if (logname == NULL) { logname = pathname; } redolog_temp = (char*)malloc(strlen(logname) + VOLATILE_REDOLOG_EXTENSION_LENGTH + 1); sprintf (redolog_temp, "%s%s", logname, VOLATILE_REDOLOG_EXTENSION); filedes = mkstemp (redolog_temp); if (filedes < 0) { BX_PANIC(("Can't create volatile redolog '%s'", redolog_temp)); return -1; } if (redolog->create(filedes, REDOLOG_SUBTYPE_VOLATILE, size) < 0) { BX_PANIC(("Can't create volatile redolog '%s'", redolog_temp)); return -1; } #if (!defined(WIN32)) && !BX_WITH_MACOS // on unix it is legal to delete an open file unlink(redolog_temp); #endif BX_INFO(("'z-volatile' disk opened: z-ro-file is '%s', redolog is '%s'", pathname, redolog_temp)); return 0; } void z_volatile_image_t::close () { redolog->close(); ro_disk->close(); #if defined(WIN32) || BX_WITH_MACOS // on non-unix we have to wait till the file is closed to delete it unlink(redolog_temp); #endif if (redolog_temp!=NULL) free(redolog_temp); if (redolog_name!=NULL) free(redolog_name); } off_t z_volatile_image_t::lseek (off_t offset, int whence) { redolog->lseek(offset, whence); return ro_disk->lseek(offset, whence); } ssize_t z_volatile_image_t::read (void* buf, size_t count) { // This should be fixed if count != 512 if (redolog->read((char*) buf, count) != count) return ro_disk->read((char*) buf, count); else return count; } ssize_t z_volatile_image_t::write (const void* buf, size_t count) { return redolog->write((char*) buf, count); } #endif