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Diffstat (limited to 'src/devices/machine/amigafdc.h')
-rw-r--r-- | src/devices/machine/amigafdc.h | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/src/devices/machine/amigafdc.h b/src/devices/machine/amigafdc.h deleted file mode 100644 index cebb4dc221c..00000000000 --- a/src/devices/machine/amigafdc.h +++ /dev/null @@ -1,128 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Olivier Galibert -#ifndef MAME_MACHINE_AMIGAFDC_H -#define MAME_MACHINE_AMIGAFDC_H - -#pragma once - -#include "imagedev/floppy.h" - -class amiga_fdc_device : public device_t { -public: - amiga_fdc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); - - auto index_callback() { return m_write_index.bind(); } - auto read_dma_callback() { return m_read_dma.bind(); } - auto write_dma_callback() { return m_write_dma.bind(); } - auto dskblk_callback() { return m_write_dskblk.bind(); } - auto dsksyn_callback() { return m_write_dsksyn.bind(); } - - DECLARE_WRITE8_MEMBER(ciaaprb_w); - - uint8_t ciaapra_r(); - uint16_t dskbytr_r(); - uint16_t dskpth_r(); - uint16_t dskptl_r(); - - void dsksync_w(uint16_t data); - void dskpth_w(uint16_t data); - void dskptl_w(uint16_t data); - void dsklen_w(uint16_t data); - void adkcon_set(uint16_t data); - void dmacon_set(uint16_t data); - uint16_t adkcon_r(void); - - DECLARE_FLOPPY_FORMATS( floppy_formats ); - -protected: - virtual void device_start() override; - virtual void device_reset() override; - virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; - -private: - // Running states - enum { - IDLE, - RUNNING, - RUNNING_SYNCPOINT - }; - - // DMA states - enum { - DMA_IDLE, - DMA_WAIT_START, - DMA_RUNNING_BYTE_0, - DMA_RUNNING_BYTE_1 - }; - - struct pll_t { - uint16_t counter; - uint16_t increment; - uint16_t transition_time; - uint8_t history; - uint8_t slot; - uint8_t phase_add, phase_sub, freq_add, freq_sub; - attotime ctime; - - attotime delays[38]; - - attotime write_start_time; - attotime write_buffer[32]; - int write_position; - - void set_clock(const attotime &period); - void reset(const attotime &when); - int get_next_bit(attotime &tm, floppy_image_device *floppy, const attotime &limit); - bool write_next_bit(bool bit, attotime &tm, floppy_image_device *floppy, const attotime &limit); - void start_writing(const attotime &tm); - void commit(floppy_image_device *floppy, const attotime &tm); - void stop_writing(floppy_image_device *floppy, const attotime &tm); - }; - - struct live_info { - attotime tm; - int state, next_state; - uint16_t shift_reg; - int bit_counter; - pll_t pll; - }; - - devcb_write_line m_write_index; - devcb_read16 m_read_dma; - devcb_write16 m_write_dma; - devcb_write_line m_write_dskblk; - devcb_write_line m_write_dsksyn; - output_finder<2> m_leds; - - floppy_image_device *floppy; - floppy_image_device *floppy_devices[4]; - - live_info cur_live, checkpoint_live; - - emu_timer *t_gen; - uint16_t dsklen, pre_dsklen, dsksync, dskbyt, adkcon, dmacon; - uint32_t dskpt; - uint16_t dma_value; - - int dma_state; - - void setup_leds(); - void index_callback(floppy_image_device *floppy, int state); - bool dma_enabled(); - void dma_check(); - void dma_done(); - void dma_write(uint16_t value); - uint16_t dma_read(); - - void live_start(); - void checkpoint(); - void rollback(); - void live_delay(int state); - void live_sync(); - void live_abort(); - void live_run(const attotime &limit = attotime::never); -}; - -DECLARE_DEVICE_TYPE(AMIGA_FDC, amiga_fdc_device) - -#endif // MAME_MACHINE_AMIGAFDC_H |