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-rw-r--r--src/mess/machine/wangpcbus.c328
1 files changed, 328 insertions, 0 deletions
diff --git a/src/mess/machine/wangpcbus.c b/src/mess/machine/wangpcbus.c
new file mode 100644
index 00000000000..0e35cb00288
--- /dev/null
+++ b/src/mess/machine/wangpcbus.c
@@ -0,0 +1,328 @@
+/**********************************************************************
+
+ Wang Professional Computer bus emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "emu.h"
+#include "emuopts.h"
+#include "machine/wangpcbus.h"
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type WANGPC_BUS_SLOT = &device_creator<wangpcbus_slot_device>;
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// wangpcbus_slot_device - constructor
+//-------------------------------------------------
+
+wangpcbus_slot_device::wangpcbus_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, WANGPC_BUS_SLOT, "Wang PC bus slot", tag, owner, clock),
+ device_slot_interface(mconfig, *this)
+{
+}
+
+void wangpcbus_slot_device::static_set_wangpcbus_slot(device_t &device, int sid)
+{
+ wangpcbus_slot_device &wangpcbus_card = dynamic_cast<wangpcbus_slot_device &>(device);
+ wangpcbus_card.m_sid = sid;
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void wangpcbus_slot_device::device_start()
+{
+ m_bus = machine().device<wangpcbus_device>(WANGPC_BUS_TAG);
+ device_wangpcbus_card_interface *dev = dynamic_cast<device_wangpcbus_card_interface *>(get_card_device());
+ if (dev) m_bus->add_wangpcbus_card(dev, m_sid);
+}
+
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type WANGPC_BUS = &device_creator<wangpcbus_device>;
+
+
+//-------------------------------------------------
+// device_config_complete - perform any
+// operations now that the configuration is
+// complete
+//-------------------------------------------------
+
+void wangpcbus_device::device_config_complete()
+{
+ // inherit a copy of the static data
+ const wangpcbus_interface *intf = reinterpret_cast<const wangpcbus_interface *>(static_config());
+ if (intf != NULL)
+ {
+ *static_cast<wangpcbus_interface *>(this) = *intf;
+ }
+
+ // or initialize to defaults if none provided
+ else
+ {
+ memset(&m_out_irq2_cb, 0, sizeof(m_out_irq2_cb));
+ memset(&m_out_irq3_cb, 0, sizeof(m_out_irq3_cb));
+ memset(&m_out_irq4_cb, 0, sizeof(m_out_irq4_cb));
+ memset(&m_out_irq5_cb, 0, sizeof(m_out_irq5_cb));
+ memset(&m_out_irq6_cb, 0, sizeof(m_out_irq6_cb));
+ memset(&m_out_irq7_cb, 0, sizeof(m_out_irq7_cb));
+ memset(&m_out_drq1_cb, 0, sizeof(m_out_drq1_cb));
+ memset(&m_out_drq2_cb, 0, sizeof(m_out_drq2_cb));
+ memset(&m_out_drq3_cb, 0, sizeof(m_out_drq3_cb));
+ memset(&m_out_ioerror_cb, 0, sizeof(m_out_ioerror_cb));
+ }
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// wangpcbus_device - constructor
+//-------------------------------------------------
+
+wangpcbus_device::wangpcbus_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, WANGPC_BUS, "Wang PC bus", tag, owner, clock)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void wangpcbus_device::device_start()
+{
+ // resolve callbacks
+ m_out_irq2_func.resolve(m_out_irq2_cb, *this);
+ m_out_irq3_func.resolve(m_out_irq3_cb, *this);
+ m_out_irq4_func.resolve(m_out_irq4_cb, *this);
+ m_out_irq5_func.resolve(m_out_irq5_cb, *this);
+ m_out_irq6_func.resolve(m_out_irq6_cb, *this);
+ m_out_irq7_func.resolve(m_out_irq7_cb, *this);
+ m_out_drq1_func.resolve(m_out_drq1_cb, *this);
+ m_out_drq2_func.resolve(m_out_drq2_cb, *this);
+ m_out_drq3_func.resolve(m_out_drq3_cb, *this);
+ m_out_ioerror_func.resolve(m_out_ioerror_cb, *this);
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void wangpcbus_device::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// add_wangpcbus_card - add S100 card
+//-------------------------------------------------
+
+void wangpcbus_device::add_wangpcbus_card(device_wangpcbus_card_interface *card, int sid)
+{
+ m_device_list.append(*card);
+
+ card->m_bus = this;
+ card->m_sid = sid;
+}
+
+
+//-------------------------------------------------
+// mrdc_r - memory read
+//-------------------------------------------------
+
+READ16_MEMBER( wangpcbus_device::mrdc_r )
+{
+ UINT16 data = 0xffff;
+
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ data &= entry->wangpcbus_mrdc_r(space, offset + 0x40000/2, mem_mask);
+ entry = entry->next();
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// amwc_w - memory write
+//-------------------------------------------------
+
+WRITE16_MEMBER( wangpcbus_device::amwc_w )
+{
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ entry->wangpcbus_amwc_w(space, offset + 0x40000/2, mem_mask, data);
+ entry = entry->next();
+ }
+}
+
+
+//-------------------------------------------------
+// sad_r - I/O read
+//-------------------------------------------------
+
+READ16_MEMBER( wangpcbus_device::sad_r )
+{
+ UINT16 data = 0xffff;
+
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ data &= entry->wangpcbus_iorc_r(space, offset + 0x1100/2, mem_mask);
+ entry = entry->next();
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// sad_w - I/O write
+//-------------------------------------------------
+
+WRITE16_MEMBER( wangpcbus_device::sad_w )
+{
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ entry->wangpcbus_aiowc_w(space, offset + 0x1100/2, mem_mask, data);
+ entry = entry->next();
+ }
+}
+
+
+WRITE_LINE_MEMBER( wangpcbus_device::irq2_w ) { m_out_irq2_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::irq3_w ) { m_out_irq3_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::irq4_w ) { m_out_irq4_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::irq5_w ) { m_out_irq5_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::irq6_w ) { m_out_irq6_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::irq7_w ) { m_out_irq7_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::drq1_w ) { m_out_drq1_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::drq2_w ) { m_out_drq2_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::drq3_w ) { m_out_drq3_func(state); }
+WRITE_LINE_MEMBER( wangpcbus_device::ioerror_w ) { m_out_ioerror_func(state); }
+
+
+//-------------------------------------------------
+// dack_r - DMA read
+//-------------------------------------------------
+
+UINT8 wangpcbus_device::dack_r(address_space &space, int line)
+{
+ UINT8 retVal = 0xff;
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ if (entry->wangpcbus_have_dack(line))
+ {
+ retVal = entry->wangpcbus_dack_r(space, line);
+ break;
+ }
+
+ entry = entry->next();
+ }
+
+ return retVal;
+}
+
+
+//-------------------------------------------------
+// dack_w - DMA write
+//-------------------------------------------------
+
+void wangpcbus_device::dack_w(address_space &space, int line, UINT8 data)
+{
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ if (entry->wangpcbus_have_dack(line))
+ {
+ entry->wangpcbus_dack_w(space, line, data);
+ }
+
+ entry = entry->next();
+ }
+}
+
+READ8_MEMBER( wangpcbus_device::dack0_r ) { return dack_r(space, 0); }
+WRITE8_MEMBER( wangpcbus_device::dack0_w ) { dack_w(space, 0, data); }
+READ8_MEMBER( wangpcbus_device::dack1_r ) { return dack_r(space, 1); }
+WRITE8_MEMBER( wangpcbus_device::dack1_w ) { dack_w(space, 1, data); }
+READ8_MEMBER( wangpcbus_device::dack2_r ) { return dack_r(space, 2); }
+WRITE8_MEMBER( wangpcbus_device::dack2_w ) { dack_w(space, 2, data); }
+READ8_MEMBER( wangpcbus_device::dack3_r ) { return dack_r(space, 3); }
+WRITE8_MEMBER( wangpcbus_device::dack3_w ) { dack_w(space, 3, data); }
+
+
+//-------------------------------------------------
+// tc_w - terminal count
+//-------------------------------------------------
+
+WRITE_LINE_MEMBER( wangpcbus_device::tc_w )
+{
+ device_wangpcbus_card_interface *entry = m_device_list.first();
+
+ while (entry)
+ {
+ entry->wangpcbus_tc_w(state);
+ entry = entry->next();
+ }
+}
+
+
+
+//**************************************************************************
+// DEVICE WANG PC BUS CARD INTERFACE
+//**************************************************************************
+
+//-------------------------------------------------
+// device_wangpcbus_card_interface - constructor
+//-------------------------------------------------
+
+device_wangpcbus_card_interface::device_wangpcbus_card_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig, device)
+{
+ m_slot = dynamic_cast<wangpcbus_slot_device *>(device.owner());
+}
+
+
+//-------------------------------------------------
+// ~device_wangpcbus_card_interface - destructor
+//-------------------------------------------------
+
+device_wangpcbus_card_interface::~device_wangpcbus_card_interface()
+{
+}