/* * x68k_scsiext.c * * Sharp CZ-6BS1 SCSI-1 controller * * Created on: 5/06/2012 */ #include "emu.h" #include "machine/scsibus.h" #include "machine/scsihd.h" #include "machine/mb89352.h" #include "machine/x68k_scsiext.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type X68K_SCSIEXT = &device_creator; static const mb89352_interface mb89352_intf = { DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER,x68k_scsiext_device,irq_w), DEVCB_DEVICE_LINE_MEMBER(DEVICE_SELF_OWNER,x68k_scsiext_device,drq_w) }; //------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- ROM_START( x68k_cz6bs1 ) ROM_REGION( 0x10000, "scsiexrom", 0 ) ROM_LOAD16_WORD_SWAP( "scsiexrom.bin", 0x0000, 0x2000, CRC(7be488de) SHA1(49616c09a8986ffe6a12ad600febe512f7ba8ae4) ) ROM_END const rom_entry *x68k_scsiext_device::device_rom_region() const { return ROM_NAME( x68k_cz6bs1 ); } // device machine config static MACHINE_CONFIG_FRAGMENT( x68k_scsiext ) MCFG_SCSIBUS_ADD("scsi") MCFG_SCSIDEV_ADD("scsi:harddisk0", SCSIHD, SCSI_ID_0) MCFG_SCSIDEV_ADD("scsi:harddisk1", SCSIHD, SCSI_ID_1) MCFG_SCSIDEV_ADD("scsi:harddisk2", SCSIHD, SCSI_ID_2) MCFG_SCSIDEV_ADD("scsi:harddisk3", SCSIHD, SCSI_ID_3) MCFG_SCSIDEV_ADD("scsi:harddisk4", SCSIHD, SCSI_ID_4) MCFG_SCSIDEV_ADD("scsi:harddisk5", SCSIHD, SCSI_ID_5) MCFG_SCSIDEV_ADD("scsi:harddisk6", SCSIHD, SCSI_ID_6) MCFG_MB89352A_ADD("scsi:mb89352",mb89352_intf) MACHINE_CONFIG_END machine_config_constructor x68k_scsiext_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( x68k_scsiext ); } x68k_scsiext_device::x68k_scsiext_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, X68K_SCSIEXT, "Sharp CZ-6BS1 SCSI-1", tag, owner, clock), device_x68k_expansion_card_interface(mconfig, *this), m_spc(*this, "scsi:mb89352") { } void x68k_scsiext_device::device_start() { device_t* cpu = machine().device("maincpu"); UINT8* ROM; astring temp; address_space& space = cpu->memory().space(AS_PROGRAM); m_slot = dynamic_cast(owner()); space.install_read_bank(0xea0020,0xea1fff,0,0,"scsi_ext"); space.unmap_write(0xea0020,0xea1fff,0,0); ROM = machine().root_device().memregion(subtag(temp,"scsiexrom"))->base(); machine().root_device().membank("scsi_ext")->set_base(ROM); space.install_readwrite_handler(0xea0000,0xea001f,0,0,read8_delegate(FUNC(x68k_scsiext_device::register_r),this),write8_delegate(FUNC(x68k_scsiext_device::register_w),this),0x00ff00ff); } void x68k_scsiext_device::device_reset() { } void x68k_scsiext_device::irq_w(int state) { m_slot->irq2_w(state); // correct? Or perhaps selectable? } void x68k_scsiext_device::drq_w(int state) { // TODO } READ8_MEMBER(x68k_scsiext_device::register_r) { return m_spc->mb89352_r(space,offset); } WRITE8_MEMBER(x68k_scsiext_device::register_w) { m_spc->mb89352_w(space,offset,data); }