// 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" class pc_fdc_family_device : public device_t { public: auto intrq_wr_callback() { return intrq_cb.bind(); } auto drq_wr_callback() { return drq_cb.bind(); } virtual void map(address_map &map) = 0; void tc_w(bool state); uint8_t dma_r(); void dma_w(uint8_t data); uint8_t dor_r(); void dor_w(uint8_t data); void ccr_w(uint8_t data); 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: void irq_w(int state); void drq_w(int state); 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; void dor_fifo_w(uint8_t data); }; DECLARE_DEVICE_TYPE(PC_FDC_XT, pc_fdc_xt_device) #endif // MAME_MACHINE_PC_FDC_H