// license:BSD-3-Clause // copyright-holders:Peter Trauner /***************************************************************************** * * machine/tpi6525.h * * mos tri port interface 6525 * mos triple interface adapter 6523 * * peter.trauner@jk.uni-linz.ac.at * * used in commodore b series * used in commodore c1551 floppy disk drive * * tia6523 is a tpi6525 without control register!? * * tia6523 * only some lines of port b and c are in the pinout! * * connector to floppy c1551 (delivered with c1551 as c16 expansion) * port a for data read/write * port b * 0 status 0 * 1 status 1 * port c * 6 dav output edge data on port a available * 7 ack input edge ready for next datum * ****************************************************************************/ #ifndef __TPI6525_H__ #define __TPI6525_H__ /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ class tpi6525_device : public device_t { public: tpi6525_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); ~tpi6525_device() {} template static devcb_base &set_out_irq_callback(device_t &device, _Object object) { return downcast(device).m_out_irq_cb.set_callback(object); } template static devcb_base &set_in_pa_callback(device_t &device, _Object object) { return downcast(device).m_in_pa_cb.set_callback(object); } template static devcb_base &set_out_pa_callback(device_t &device, _Object object) { return downcast(device).m_out_pa_cb.set_callback(object); } template static devcb_base &set_in_pb_callback(device_t &device, _Object object) { return downcast(device).m_in_pb_cb.set_callback(object); } template static devcb_base &set_out_pb_callback(device_t &device, _Object object) { return downcast(device).m_out_pb_cb.set_callback(object); } template static devcb_base &set_in_pc_callback(device_t &device, _Object object) { return downcast(device).m_in_pc_cb.set_callback(object); } template static devcb_base &set_out_pc_callback(device_t &device, _Object object) { return downcast(device).m_out_pc_cb.set_callback(object); } template static devcb_base &set_out_ca_callback(device_t &device, _Object object) { return downcast(device).m_out_ca_cb.set_callback(object); } template static devcb_base &set_out_cb_callback(device_t &device, _Object object) { return downcast(device).m_out_cb_cb.set_callback(object); } DECLARE_READ8_MEMBER( read ); DECLARE_WRITE8_MEMBER( write ); DECLARE_WRITE_LINE_MEMBER( i0_w ); DECLARE_WRITE_LINE_MEMBER( i1_w ); DECLARE_WRITE_LINE_MEMBER( i2_w ); DECLARE_WRITE_LINE_MEMBER( i3_w ); DECLARE_WRITE_LINE_MEMBER( i4_w ); DECLARE_READ8_MEMBER( pa_r ); DECLARE_READ8_MEMBER( pb_r ); DECLARE_READ8_MEMBER( pc_r ); DECLARE_WRITE8_MEMBER( pa_w ); DECLARE_WRITE8_MEMBER( pb_w ); DECLARE_WRITE8_MEMBER( pc_w ); WRITE_LINE_MEMBER( pb0_w ) { port_line_w(m_in_b, 0, state); } WRITE_LINE_MEMBER( pb1_w ) { port_line_w(m_in_b, 1, state); } WRITE_LINE_MEMBER( pb2_w ) { port_line_w(m_in_b, 2, state); } WRITE_LINE_MEMBER( pb3_w ) { port_line_w(m_in_b, 3, state); } WRITE_LINE_MEMBER( pb4_w ) { port_line_w(m_in_b, 4, state); } WRITE_LINE_MEMBER( pb5_w ) { port_line_w(m_in_b, 5, state); } WRITE_LINE_MEMBER( pb6_w ) { port_line_w(m_in_b, 6, state); } WRITE_LINE_MEMBER( pb7_w ) { port_line_w(m_in_b, 7, state); } UINT8 get_ddr_a(); UINT8 get_ddr_b(); UINT8 get_ddr_c(); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: // internal state devcb_write_line m_out_irq_cb; devcb_read8 m_in_pa_cb; devcb_write8 m_out_pa_cb; devcb_read8 m_in_pb_cb; devcb_write8 m_out_pb_cb; devcb_read8 m_in_pc_cb; devcb_write8 m_out_pc_cb; devcb_write_line m_out_ca_cb; devcb_write_line m_out_cb_cb; UINT8 m_port_a, m_ddr_a, m_in_a; UINT8 m_port_b, m_ddr_b, m_in_b; UINT8 m_port_c, m_ddr_c, m_in_c; UINT8 m_ca_level, m_cb_level, m_interrupt_level; UINT8 m_cr; UINT8 m_air; UINT8 m_irq_level[5]; void set_interrupt(); void clear_interrupt(); // helper function to write a single line static void port_line_w(UINT8 &port, int line, int state); }; extern const device_type TPI6525; #define MCFG_TPI6525_OUT_IRQ_CB(_devcb) \ devcb = &tpi6525_device::set_out_irq_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_IN_PA_CB(_devcb) \ devcb = &tpi6525_device::set_in_pa_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_OUT_PA_CB(_devcb) \ devcb = &tpi6525_device::set_out_pa_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_IN_PB_CB(_devcb) \ devcb = &tpi6525_device::set_in_pb_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_OUT_PB_CB(_devcb) \ devcb = &tpi6525_device::set_out_pb_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_IN_PC_CB(_devcb) \ devcb = &tpi6525_device::set_in_pc_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_OUT_PC_CB(_devcb) \ devcb = &tpi6525_device::set_out_pc_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_OUT_CA_CB(_devcb) \ devcb = &tpi6525_device::set_out_ca_callback(*device, DEVCB_##_devcb); #define MCFG_TPI6525_OUT_CB_CB(_devcb) \ devcb = &tpi6525_device::set_out_cb_callback(*device, DEVCB_##_devcb); #endif /* __TPI6525_H__ */