// 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 void x68k_scsiext_device::device_add_mconfig(machine_config &config) { 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(m_scsibus); m_spc->irq_cb().set(FUNC(x68k_scsiext_device::irq_w)); m_spc->drq_cb().set(FUNC(x68k_scsiext_device::drq_w)); } 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() { uint8_t *ROM = machine().root_device().memregion(subtag("scsiexrom").c_str())->base(); m_slot = dynamic_cast(owner()); m_slot->space().install_rom(0xea0020,0xea1fff,ROM); m_slot->space().unmap_write(0xea0020,0xea1fff); m_slot->space().install_readwrite_handler(0xea0000,0xea001f, read8sm_delegate(*this, FUNC(x68k_scsiext_device::register_r)), write8sm_delegate(*this, FUNC(x68k_scsiext_device::register_w)), 0x00ff00ff); } void x68k_scsiext_device::device_reset() { } void x68k_scsiext_device::irq_w(int state) { m_slot->irq2_w(state); // correct? Or perhaps selectable? } uint8_t x68k_scsiext_device::iack2() { return 0xf6; } void x68k_scsiext_device::drq_w(int state) { // TODO } uint8_t x68k_scsiext_device::register_r(offs_t offset) { return m_spc->mb89352_r(offset); } void x68k_scsiext_device::register_w(offs_t offset, uint8_t data) { m_spc->mb89352_w(offset,data); }