// license:BSD-3-Clause // copyright-holders:smf /*************************************************************************** ataintf.c ATA Interface implementation. ***************************************************************************/ #include "emu.h" #include "ataintf.h" #include "debugger.h" #include "idehd.h" #include "atapicdr.h" void ata_interface_device::set_irq(int state) { // printf( "%s: irq %d\n", machine().describe_context(), state ); m_irq_handler(state); } void ata_interface_device::set_dmarq(int state) { // printf( "%s: dmarq %d\n", machine().describe_context(), state ); m_dmarq_handler(state); } void ata_interface_device::set_dasp(int state) { // printf( "%s: dasp %d\n", machine().describe_context(), state ); m_dasp_handler(state); } WRITE_LINE_MEMBER( ata_interface_device::irq0_write_line ) { if (m_irq[0] != state) { m_irq[0] = state; set_irq(m_irq[0] == ASSERT_LINE || m_irq[1] == ASSERT_LINE); } } WRITE_LINE_MEMBER( ata_interface_device::irq1_write_line ) { if (m_irq[1] != state) { m_irq[1] = state; set_irq(m_irq[0] == ASSERT_LINE || m_irq[1] == ASSERT_LINE); } } WRITE_LINE_MEMBER( ata_interface_device::dasp0_write_line ) { if (m_dasp[0] != state) { m_dasp[0] = state; set_dasp(m_dasp[0] == ASSERT_LINE || m_dasp[1] == ASSERT_LINE); } } WRITE_LINE_MEMBER( ata_interface_device::dasp1_write_line ) { if (m_dasp[1] != state) { m_dasp[1] = state; ata_device_interface *dev = m_slot[0]->dev(); if (dev != nullptr) dev->write_dasp(state); set_dasp(m_dasp[0] == ASSERT_LINE || m_dasp[1] == ASSERT_LINE); } } WRITE_LINE_MEMBER( ata_interface_device::dmarq0_write_line ) { if (m_dmarq[0] != state) { m_dmarq[0] = state; set_dmarq(m_dmarq[0] == ASSERT_LINE || m_dmarq[1] == ASSERT_LINE); } } WRITE_LINE_MEMBER( ata_interface_device::dmarq1_write_line ) { if (m_dmarq[1] != state) { m_dmarq[1] = state; set_dmarq(m_dmarq[0] == ASSERT_LINE || m_dmarq[1] == ASSERT_LINE); } } WRITE_LINE_MEMBER( ata_interface_device::pdiag0_write_line ) { m_pdiag[0] = state; } WRITE_LINE_MEMBER( ata_interface_device::pdiag1_write_line ) { if (m_pdiag[1] != state) { m_pdiag[1] = state; ata_device_interface *dev = m_slot[0]->dev(); if (dev != nullptr) dev->write_pdiag(state); } } /************************************* * * ATA interface read * *************************************/ uint16_t ata_interface_device::read_dma() { uint16_t result = 0xffff; for (auto & elem : m_slot) if (elem->dev() != nullptr) result &= elem->dev()->read_dma(); // printf( "%s: read_dma %04x\n", machine().describe_context(), result ); return result; } READ16_MEMBER( ata_interface_device::read_cs0 ) { uint16_t result = mem_mask; for (auto & elem : m_slot) if (elem->dev() != nullptr) result &= elem->dev()->read_cs0(space, offset, mem_mask); // { static int last_status = -1; if (offset == 7 ) { if( result == last_status ) return last_status; last_status = result; } else last_status = -1; } // printf( "%s: read cs0 %04x %04x %04x\n", machine().describe_context(), offset, result, mem_mask ); return result; } READ16_MEMBER( ata_interface_device::read_cs1 ) { uint16_t result = mem_mask; for (auto & elem : m_slot) if (elem->dev() != nullptr) result &= elem->dev()->read_cs1(space, offset, mem_mask); // printf( "%s: read cs1 %04x %04x %04x\n", machine().describe_context(), offset, result, mem_mask ); return result; } /************************************* * * ATA interface write * *************************************/ void ata_interface_device::write_dma( uint16_t data ) { // printf( "%s: write_dma %04x\n", machine().describe_context(), data ); for (auto & elem : m_slot) if (elem->dev() != nullptr) elem->dev()->write_dma(data); } WRITE16_MEMBER( ata_interface_device::write_cs0 ) { // printf( "%s: write cs0 %04x %04x %04x\n", machine().describe_context(), offset, data, mem_mask ); for (auto & elem : m_slot) if (elem->dev() != nullptr) elem->dev()->write_cs0(space, offset, data, mem_mask); } WRITE16_MEMBER( ata_interface_device::write_cs1 ) { // printf( "%s: write cs1 %04x %04x %04x\n", machine().describe_context(), offset, data, mem_mask ); for (auto & elem : m_slot) if (elem->dev() != nullptr) elem->dev()->write_cs1(space, offset, data, mem_mask); } WRITE_LINE_MEMBER( ata_interface_device::write_dmack ) { // printf( "%s: write_dmack %04x\n", machine().describe_context(), state ); for (auto & elem : m_slot) if (elem->dev() != nullptr) elem->dev()->write_dmack(state); } SLOT_INTERFACE_START(ata_devices) SLOT_INTERFACE("hdd", IDE_HARDDISK) SLOT_INTERFACE("cdrom", ATAPI_CDROM) SLOT_INTERFACE_END ata_interface_device::ata_interface_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, const char *shortname, const char *source) : device_t(mconfig, type, name, tag, owner, clock, shortname, source), m_irq_handler(*this), m_dmarq_handler(*this), m_dasp_handler(*this){ } const device_type ATA_INTERFACE = &device_creator; ata_interface_device::ata_interface_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, ATA_INTERFACE, "ATA Interface", tag, owner, clock, "ata_interface", __FILE__), m_irq_handler(*this), m_dmarq_handler(*this), m_dasp_handler(*this) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void ata_interface_device::device_start() { m_irq_handler.resolve_safe(); m_dmarq_handler.resolve_safe(); m_dasp_handler.resolve_safe(); /* set MAME harddisk handle */ m_slot[0] = subdevice("0"); m_slot[1] = subdevice("1"); for (int i = 0; i < 2; i++) { m_irq[i] = 0; m_dmarq[i] = 0; m_dasp[i] = 0; m_pdiag[i] = 0; ata_device_interface *dev = m_slot[i]->dev(); if (dev != nullptr) { if (i == 0) { dev->m_irq_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, irq0_write_line)); dev->m_dmarq_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, dmarq0_write_line)); dev->m_dasp_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, dasp0_write_line)); dev->m_pdiag_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, pdiag0_write_line)); } else { dev->m_irq_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, irq1_write_line)); dev->m_dmarq_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, dmarq1_write_line)); dev->m_dasp_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, dasp1_write_line)); dev->m_pdiag_handler.set_callback(DEVCB_DEVWRITELINE("^", ata_interface_device, pdiag1_write_line)); } dev->write_csel(i); } } } static MACHINE_CONFIG_FRAGMENT( ata_interface ) MCFG_DEVICE_ADD( "0", ATA_SLOT, 0 ) MCFG_DEVICE_ADD( "1", ATA_SLOT, 0 ) MACHINE_CONFIG_END //------------------------------------------------- // machine_config_additions - return a pointer to // the device's machine fragment //------------------------------------------------- machine_config_constructor ata_interface_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( ata_interface ); } //************************************************************************** // ATA SLOT DEVICE //************************************************************************** // device type definition const device_type ATA_SLOT = &device_creator; //------------------------------------------------- // ata_slot_device - constructor //------------------------------------------------- ata_slot_device::ata_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, ATA_SLOT, "ATA Connector", tag, owner, clock, "ata_slot", __FILE__), device_slot_interface(mconfig, *this), m_dev(nullptr) { } //------------------------------------------------- // device_config_complete - perform any // operations now that the configuration is // complete //------------------------------------------------- void ata_slot_device::device_config_complete() { m_dev = dynamic_cast(get_card_device()); } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void ata_slot_device::device_start() { }