summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/msx_cart/msx_audio_kb.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/msx_cart/msx_audio_kb.h')
-rw-r--r--src/devices/bus/msx_cart/msx_audio_kb.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/devices/bus/msx_cart/msx_audio_kb.h b/src/devices/bus/msx_cart/msx_audio_kb.h
new file mode 100644
index 00000000000..db09bf64dd9
--- /dev/null
+++ b/src/devices/bus/msx_cart/msx_audio_kb.h
@@ -0,0 +1,49 @@
+// license:BSD-3-Clause
+// copyright-holders:Wilbert Pol
+#ifndef __MSX_AUDIO_KB_H__
+#define __MSX_AUDIO_KB_H__
+
+
+extern const device_type MSX_AUDIO_KBDC_PORT;
+
+
+#define MCFG_MSX_AUDIO_KBDC_PORT_ADD(_tag, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, MSX_AUDIO_KBDC_PORT, 0 ) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+
+class msx_audio_kb_port_interface : public device_slot_card_interface
+{
+public:
+ // construction/destruction
+ msx_audio_kb_port_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig, device)
+ { };
+
+ virtual DECLARE_READ8_MEMBER(read) { return 0xff; };
+ virtual DECLARE_WRITE8_MEMBER(write) { };
+};
+
+
+class msx_audio_kbdc_port_device : public device_t,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ msx_audio_kbdc_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+
+ // Physical connection simply consists of 8 input and 8 output lines split across 2 connectors
+ DECLARE_WRITE8_MEMBER(write);
+ DECLARE_READ8_MEMBER(read);
+
+ msx_audio_kb_port_interface *m_keyboard;
+};
+
+
+SLOT_INTERFACE_EXTERN( msx_audio_keyboards );
+
+
+#endif