summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/machine/tandy2kb.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/machine/tandy2kb.h')
-rw-r--r--src/mame/machine/tandy2kb.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/mame/machine/tandy2kb.h b/src/mame/machine/tandy2kb.h
new file mode 100644
index 00000000000..9a2d65d373f
--- /dev/null
+++ b/src/mame/machine/tandy2kb.h
@@ -0,0 +1,110 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Tandy 2000 keyboard emulation
+
+*********************************************************************/
+
+#pragma once
+
+#ifndef __TANDY2K_KEYBOARD__
+#define __TANDY2K_KEYBOARD__
+
+#include "emu.h"
+#include "cpu/mcs48/mcs48.h"
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define TANDY2K_KEYBOARD_TAG "tandy2kb"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_TANDY2000_KEYBOARD_CLOCK_CALLBACK(_write) \
+ devcb = &tandy2k_keyboard_device::set_clock_wr_callback(*device, DEVCB_##_write);
+
+#define MCFG_TANDY2000_KEYBOARD_DATA_CALLBACK(_write) \
+ devcb = &tandy2k_keyboard_device::set_data_wr_callback(*device, DEVCB_##_write);
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> tandy2k_keyboard_device
+
+class tandy2k_keyboard_device : public device_t
+{
+public:
+ // construction/destruction
+ tandy2k_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ template<class _Object> static devcb_base &set_clock_wr_callback(device_t &device, _Object object) { return downcast<tandy2k_keyboard_device &>(device).m_write_clock.set_callback(object); }
+ template<class _Object> static devcb_base &set_data_wr_callback(device_t &device, _Object object) { return downcast<tandy2k_keyboard_device &>(device).m_write_data.set_callback(object); }
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual ioport_constructor device_input_ports() const;
+
+ DECLARE_WRITE_LINE_MEMBER( power_w );
+ DECLARE_WRITE_LINE_MEMBER( reset_w );
+ DECLARE_WRITE_LINE_MEMBER( busy_w );
+ DECLARE_READ_LINE_MEMBER( data_r );
+
+ // not really public
+ DECLARE_READ8_MEMBER( kb_p1_r );
+ DECLARE_WRITE8_MEMBER( kb_p1_w );
+ DECLARE_WRITE8_MEMBER( kb_p2_w );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+private:
+ enum
+ {
+ LED_1 = 0,
+ LED_2
+ };
+
+ required_device<cpu_device> m_maincpu;
+ required_ioport m_y0;
+ required_ioport m_y1;
+ required_ioport m_y2;
+ required_ioport m_y3;
+ required_ioport m_y4;
+ required_ioport m_y5;
+ required_ioport m_y6;
+ required_ioport m_y7;
+ required_ioport m_y8;
+ required_ioport m_y9;
+ required_ioport m_y10;
+ required_ioport m_y11;
+
+ devcb_write_line m_write_clock;
+ devcb_write_line m_write_data;
+
+ UINT16 m_keylatch;
+
+ int m_clock;
+ int m_data;
+};
+
+
+// device type definition
+extern const device_type TANDY2K_KEYBOARD;
+
+
+
+#endif