// license:BSD-3-Clause // copyright-holders:Wilbert Pol /********************************************************************** PC-style floppy disk controller emulation **********************************************************************/ #ifndef MAME_MACHINE_PC_FDC_H #define MAME_MACHINE_PC_FDC_H #pragma once #include "machine/upd765.h" #define MCFG_PC_FDC_XT_ADD(_tag) \ MCFG_DEVICE_ADD(_tag, PC_FDC_XT, 0) #define MCFG_PC_FDC_AT_ADD(_tag) \ MCFG_DEVICE_ADD(_tag, PC_FDC_AT, 0) #define MCFG_PC_FDC_INTRQ_CALLBACK(_write) \ devcb = &downcast(*device).set_intrq_wr_callback(DEVCB_##_write); #define MCFG_PC_FDC_DRQ_CALLBACK(_write) \ devcb = &downcast(*device).set_drq_wr_callback(DEVCB_##_write); class pc_fdc_family_device : public pc_fdc_interface { public: template devcb_base &set_intrq_wr_callback(Object &&cb) { return intrq_cb.set_callback(std::forward(cb)); } template devcb_base &set_drq_wr_callback(Object &&cb) { return drq_cb.set_callback(std::forward(cb)); } virtual void map(address_map &map) override; virtual void tc_w(bool state) override; virtual uint8_t dma_r() override; virtual void dma_w(uint8_t data) override; virtual uint8_t do_dir_r() override; READ8_MEMBER(dor_r); WRITE8_MEMBER(dor_w); READ8_MEMBER(dir_r); WRITE8_MEMBER(ccr_w); required_device fdc; protected: pc_fdc_family_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; private: DECLARE_WRITE_LINE_MEMBER( irq_w ); DECLARE_WRITE_LINE_MEMBER( drq_w ); bool irq, drq, fdc_drq, fdc_irq; devcb_write_line intrq_cb, drq_cb; uint8_t dor; floppy_image_device *floppy[4]; void check_irq(); void check_drq(); }; class pc_fdc_xt_device : public pc_fdc_family_device { public: pc_fdc_xt_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual void map(address_map &map) override; WRITE8_MEMBER(dor_fifo_w); }; class pc_fdc_at_device : public pc_fdc_family_device { public: pc_fdc_at_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual void map(address_map &map) override; }; DECLARE_DEVICE_TYPE(PC_FDC_XT, pc_fdc_xt_device) DECLARE_DEVICE_TYPE(PC_FDC_AT, pc_fdc_at_device) #endif // MAME_MACHINE_PC_FDC_H