// license:GPL-2.0+ // copyright-holders:Dirk Best /*************************************************************************** Amiga Keyboard We currently emulate the Amiga 500 keyboard controller, which was also used in later Amiga 2000 keyboards. ***************************************************************************/ #pragma once #ifndef __AMIGAKBD_H__ #define __AMIGAKBD_H__ #include "emu.h" #include "cpu/m6502/m6502.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_AMIGA_KEYBOARD_KCLK_CALLBACK(_write) \ devcb = &amigakbd_device::set_kclk_wr_callback(*device, DEVCB_##_write); #define MCFG_AMIGA_KEYBOARD_KDAT_CALLBACK(_write) \ devcb = &amigakbd_device::set_kdat_wr_callback(*device, DEVCB_##_write); #define MCFG_AMIGA_KEYBOARD_KRST_CALLBACK(_write) \ devcb = &amigakbd_device::set_krst_wr_callback(*device, DEVCB_##_write); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> amigakbd_device class amigakbd_device : public device_t { public: // construction/destruction amigakbd_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); template static devcb_base &set_kclk_wr_callback(device_t &device, _Object object) { return downcast(device).m_write_kclk.set_callback(object); } template static devcb_base &set_kdat_wr_callback(device_t &device, _Object object) { return downcast(device).m_write_kdat.set_callback(object); } template static devcb_base &set_krst_wr_callback(device_t &device, _Object object) { return downcast(device).m_write_krst.set_callback(object); } DECLARE_WRITE_LINE_MEMBER( kdat_w ); // 6500/1 internal DECLARE_READ8_MEMBER( port_a_r ); DECLARE_WRITE8_MEMBER( port_a_w ); DECLARE_READ8_MEMBER( port_b_r ); DECLARE_WRITE8_MEMBER( port_b_w ); DECLARE_WRITE8_MEMBER( port_c_w ); DECLARE_WRITE8_MEMBER( port_d_w ); DECLARE_WRITE8_MEMBER( latch_w ); DECLARE_READ8_MEMBER( counter_r ); DECLARE_WRITE8_MEMBER( transfer_latch_w ); DECLARE_WRITE8_MEMBER( clear_pa0_detect ); DECLARE_WRITE8_MEMBER( clear_pa1_detect ); DECLARE_READ8_MEMBER( control_r ); DECLARE_WRITE8_MEMBER( control_w ); DECLARE_INPUT_CHANGED_MEMBER( check_reset ); protected: // device-level overrides virtual const rom_entry *device_rom_region() const; virtual machine_config_constructor device_mconfig_additions() const; virtual ioport_constructor device_input_ports() const; virtual void device_start(); virtual void device_reset(); virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); private: enum { // counter modes COUNTER_INTERVAL = 0x00, COUNTER_PULSE = 0x01, COUNTER_EVENT = 0x02, COUNTER_PWM = 0x03, // interrupt enables PA1_INT_ENABLED = 0x04, PA0_INT_ENABLED = 0x08, COUNTER_INT_ENABLED = 0x10, // status PA1_NEGATIVE_EDGE = 0x20, PA0_POSITIVE_EDGE = 0x40, COUNTER_OVERFLOW = 0x80 }; void update_irqs(); devcb_write_line m_write_kclk; devcb_write_line m_write_kdat; devcb_write_line m_write_krst; required_device m_mpu; required_ioport m_special; required_ioport m_row_d6; required_ioport m_row_d5; required_ioport m_row_d4; required_ioport m_row_d3; required_ioport m_row_d2; required_ioport m_row_d1; required_ioport m_row_d0; required_ioport m_row_c7; required_ioport m_row_c6; required_ioport m_row_c5; required_ioport m_row_c4; required_ioport m_row_c3; required_ioport m_row_c2; required_ioport m_row_c1; required_ioport m_row_c0; emu_timer *m_timer; emu_timer *m_watchdog; emu_timer *m_reset; int m_kdat; int m_kclk; UINT8 m_port_c; UINT8 m_port_d; UINT16 m_latch; UINT16 m_counter; UINT8 m_control; }; // device type definition extern const device_type AMIGAKBD; #endif // __AMIGAKBD_H__