/********************************************************************** Conitec Datensysteme ECB Bus emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ #include "ecbbus.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type ECBBUS_SLOT = &device_creator; //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // ecbbus_slot_device - constructor //------------------------------------------------- ecbbus_slot_device::ecbbus_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, ECBBUS_SLOT, "ECB bus slot", tag, owner, clock), device_slot_interface(mconfig, *this) { } //------------------------------------------------- // static_set_ecbbus_slot - //------------------------------------------------- void ecbbus_slot_device::static_set_ecbbus_slot(device_t &device, const char *tag, int num) { ecbbus_slot_device &ecbbus_card = dynamic_cast(device); ecbbus_card.m_bus_tag = tag; ecbbus_card.m_bus_num = num; } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void ecbbus_slot_device::device_start() { m_bus = machine().device(m_bus_tag); device_ecbbus_card_interface *dev = dynamic_cast(get_card_device()); if (dev) m_bus->add_ecbbus_card(dev, m_bus_num); } //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type ECBBUS = &device_creator; void ecbbus_device::static_set_cputag(device_t &device, const char *tag) { ecbbus_device &ecbbus = downcast(device); ecbbus.m_cputag = tag; } //------------------------------------------------- // device_config_complete - perform any // operations now that the configuration is // complete //------------------------------------------------- void ecbbus_device::device_config_complete() { // inherit a copy of the static data const ecbbus_interface *intf = reinterpret_cast(static_config()); if (intf != NULL) { *static_cast(this) = *intf; } // or initialize to defaults if none provided else { memset(&m_out_int_cb, 0, sizeof(m_out_int_cb)); memset(&m_out_nmi_cb, 0, sizeof(m_out_nmi_cb)); } } //************************************************************************** // DEVICE ECBBUS CARD INTERFACE //************************************************************************** //------------------------------------------------- // device_ecbbus_card_interface - constructor //------------------------------------------------- device_ecbbus_card_interface::device_ecbbus_card_interface(const machine_config &mconfig, device_t &device) : device_slot_card_interface(mconfig, device) { m_slot = dynamic_cast(device.owner()); } //------------------------------------------------- // ~device_ecbbus_card_interface - destructor //------------------------------------------------- device_ecbbus_card_interface::~device_ecbbus_card_interface() { } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // ecbbus_device - constructor //------------------------------------------------- ecbbus_device::ecbbus_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, ECBBUS, "ECB bus", tag, owner, clock) { for (int i = 0; i < MAX_ECBBUS_SLOTS; i++) m_ecbbus_device[i] = NULL; } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void ecbbus_device::device_start() { m_maincpu = machine().device(m_cputag); // resolve callbacks m_out_int_func.resolve(m_out_int_cb, *this); m_out_nmi_func.resolve(m_out_nmi_cb, *this); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void ecbbus_device::device_reset() { } //------------------------------------------------- // add_ecbbus_card - add ECB bus card //------------------------------------------------- void ecbbus_device::add_ecbbus_card(device_ecbbus_card_interface *card, int pos) { m_ecbbus_device[pos] = card; } //------------------------------------------------- // mem_r - //------------------------------------------------- READ8_MEMBER( ecbbus_device::mem_r ) { UINT8 data = 0; for (int i = 0; i < MAX_ECBBUS_SLOTS; i++) { if (m_ecbbus_device[i] != NULL) { data |= m_ecbbus_device[i]->ecbbus_mem_r(offset); } } return data; } //------------------------------------------------- // mem_w - //------------------------------------------------- WRITE8_MEMBER( ecbbus_device::mem_w ) { for (int i = 0; i < MAX_ECBBUS_SLOTS; i++) { if (m_ecbbus_device[i] != NULL) { m_ecbbus_device[i]->ecbbus_mem_w(offset, data); } } } //------------------------------------------------- // io_r - //------------------------------------------------- READ8_MEMBER( ecbbus_device::io_r ) { UINT8 data = 0; for (int i = 0; i < MAX_ECBBUS_SLOTS; i++) { if (m_ecbbus_device[i] != NULL) { data |= m_ecbbus_device[i]->ecbbus_io_r(offset); } } return data; } //------------------------------------------------- // io_w - //------------------------------------------------- WRITE8_MEMBER( ecbbus_device::io_w ) { for (int i = 0; i < MAX_ECBBUS_SLOTS; i++) { if (m_ecbbus_device[i] != NULL) { m_ecbbus_device[i]->ecbbus_io_w(offset, data); } } } //------------------------------------------------- // int_w - //------------------------------------------------- WRITE_LINE_MEMBER( ecbbus_device::int_w ) { m_out_int_func(state); } //------------------------------------------------- // nmi_w - //------------------------------------------------- WRITE_LINE_MEMBER( ecbbus_device::nmi_w ) { m_out_nmi_func(state); }