diff options
Diffstat (limited to 'src/devices/bus/vcs_ctrl/trakball.h')
-rw-r--r-- | src/devices/bus/vcs_ctrl/trakball.h | 53 |
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 |