// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Acorn Atom Econet Interface Part No. 102,002 **********************************************************************/ #include "emu.h" #include "econet.h" #include "bus/econet/e01.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(ATOM_ECONET, atom_econet_device, "atom_econet", "Acorn Atom Econet Interface") //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void atom_econet_device::device_add_mconfig(machine_config &config) { /* econet */ MC6854(config, m_adlc); m_adlc->out_txd_cb().set(m_econet, FUNC(econet_device::host_data_w)); m_adlc->out_irq_cb().set(FUNC(atom_econet_device::bus_irq_w)); ECONET(config, m_econet, 0); m_econet->clk_wr_callback().set(m_adlc, FUNC(mc6854_device::txc_w)); m_econet->clk_wr_callback().append(m_adlc, FUNC(mc6854_device::rxc_w)); m_econet->data_wr_callback().set(m_adlc, FUNC(mc6854_device::set_rx)); econet_slot_device &slot(ECONET_SLOT(config, "econet254", 0)); econet_devices(slot); slot.set_slot(254); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // atom_econet_device - constructor //------------------------------------------------- atom_econet_device::atom_econet_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, ATOM_ECONET, tag, owner, clock) , device_acorn_bus_interface(mconfig, *this) , m_adlc(*this, "mc6854") , m_econet(*this, "econet") { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void atom_econet_device::device_start() { address_space &space = m_bus->memspace(); space.install_readwrite_handler(0xb400, 0xb403, read8sm_delegate(*m_adlc, FUNC(mc6854_device::read)), write8sm_delegate(*m_adlc, FUNC(mc6854_device::write))); space.install_read_handler(0xb404, 0xb404, read8smo_delegate(*this, FUNC(atom_econet_device::statid_r))); } //************************************************************************** // IMPLEMENTATION //************************************************************************** uint8_t atom_econet_device::statid_r() { return 0xfe; } void atom_econet_device::bus_irq_w(int state) { m_bus->irq_w(state); }