// license:BSD-3-Clause // copyright-holders:Barry Rodewald /* * x68k_scsiext.c * * Sharp CZ-6BS1 SCSI-1 controller * * Created on: 5/06/2012 */ #include "emu.h" #include "x68k_scsiext.h" #include "bus/scsi/scsi.h" #include "bus/scsi/scsihd.h" #include "machine/mb89352.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(X68K_SCSIEXT, x68k_scsiext_device, "x68k_cz6bs1", "Sharp CZ-6BS1 SCSI-1") //------------------------------------------------- // 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 tiny_rom_entry *x68k_scsiext_device::device_rom_region() const { return ROM_NAME( x68k_cz6bs1 ); } // device machine config MACHINE_CONFIG_START(x68k_scsiext_device::device_add_mconfig) SCSI_PORT(config, m_scsibus); m_scsibus->set_slot_device(1, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_0)); m_scsibus->set_slot_device(2, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_1)); m_scsibus->set_slot_device(3, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_2)); m_scsibus->set_slot_device(4, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_3)); m_scsibus->set_slot_device(5, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_4)); m_scsibus->set_slot_device(6, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_5)); m_scsibus->set_slot_device(7, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_6)); MB89352A(config, m_spc); m_spc->set_scsi_port("scsi"); m_spc->irq_cb().set(FUNC(x68k_scsiext_device::irq_w)); m_spc->drq_cb().set(FUNC(x68k_scsiext_device::drq_w)); MACHINE_CONFIG_END x68k_scsiext_device::x68k_scsiext_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, X68K_SCSIEXT, tag, owner, clock) , device_x68k_expansion_card_interface(mconfig, *this) , m_slot(nullptr), m_scsibus(*this, "scsi"), m_spc(*this, "mb89352") { } void x68k_scsiext_device::device_start() { device_t* cpu = machine().device("maincpu"); uint8_t* ROM; address_space& space = cpu->memory().space(AS_PROGRAM); m_slot = dynamic_cast(owner()); space.install_read_bank(0xea0020,0xea1fff,"scsi_ext"); space.unmap_write(0xea0020,0xea1fff); ROM = machine().root_device().memregion(subtag("scsiexrom").c_str())->base(); machine().root_device().membank("scsi_ext")->set_base(ROM); space.install_readwrite_handler(0xea0000,0xea001f,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); }