summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/vcs_ctrl/trakball.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/vcs_ctrl/trakball.h')
-rw-r--r--src/devices/bus/vcs_ctrl/trakball.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/devices/bus/vcs_ctrl/trakball.h b/src/devices/bus/vcs_ctrl/trakball.h
new file mode 100644
index 00000000000..8bd357b0466
--- /dev/null
+++ b/src/devices/bus/vcs_ctrl/trakball.h
@@ -0,0 +1,53 @@
+// license:BSD-3-Clause
+/**********************************************************************
+
+ Atari CX22/CX80 Trak-Ball
+
+**********************************************************************/
+
+#ifndef MAME_BUS_VCS_CTRL_TRAKBALL_H
+#define MAME_BUS_VCS_CTRL_TRAKBALL_H
+
+#pragma once
+
+#include "ctrl.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> atari_trakball_device
+
+class atari_trakball_device : public device_t,
+ public device_vcs_control_port_interface
+{
+public:
+ // construction/destruction
+ atari_trakball_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+ DECLARE_INPUT_CHANGED_MEMBER( trakball_moved );
+
+protected:
+ // device_t implementation
+ virtual void device_start() override;
+
+ // optional information overrides
+ virtual ioport_constructor device_input_ports() const override;
+
+ // device_vcs_control_port_interface overrides
+ virtual u8 vcs_joy_r() override;
+
+private:
+ void trakball_pos_and_dir_upd(int axis);
+
+ required_ioport m_trakballb;
+ required_ioport_array<2> m_trakballxy;
+
+ uint32_t m_last_pos[2];
+ uint8_t m_last_direction[2];
+};
+
+
+// device type declaration
+DECLARE_DEVICE_TYPE(ATARI_TRAKBALL, atari_trakball_device)
+
+#endif // MAME_BUS_VCS_CTRL_TRAKBALL_H