72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Emulation of the SFF-8038i IDE Bus Master.
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*
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*
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*
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* Authors: Sarah Walker, <https://pcem-emulator.co.uk/>
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* Miran Grca, <mgrca8@gmail.com>
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*
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* Copyright 2008-2020 Sarah Walker.
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* Copyright 2016-2020 Miran Grca.
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*/
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#ifndef EMU_HDC_IDE_SFF8038I_H
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#define EMU_HDC_IDE_SFF8038I_H
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typedef struct sff8038i_t {
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uint8_t command;
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uint8_t status;
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uint8_t ptr0;
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uint8_t enabled;
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uint8_t dma_mode;
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uint8_t pad;
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uint8_t pad0;
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uint8_t pad1;
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uint16_t base;
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uint16_t pad2;
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uint32_t ptr;
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uint32_t ptr_cur;
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uint32_t addr;
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int count;
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int eot;
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int slot;
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int irq_mode[2];
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int irq_level[2];
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int irq_pin;
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int irq_line;
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} sff8038i_t;
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extern const device_t sff8038i_device;
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extern void sff_bus_master_handler(sff8038i_t *dev, int enabled, uint16_t base);
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extern int sff_bus_master_dma_read(int channel, uint8_t *data, int transfer_length, void *priv);
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extern int sff_bus_master_dma_write(int channel, uint8_t *data, int transfer_length, void *priv);
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extern void sff_bus_master_set_irq(int channel, void *priv);
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extern int sff_bus_master_dma(int channel, uint8_t *data, int transfer_length, int out, void *priv);
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extern void sff_bus_master_write(uint16_t port, uint8_t val, void *priv);
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extern uint8_t sff_bus_master_read(uint16_t port, void *priv);
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extern void sff_bus_master_reset(sff8038i_t *dev, uint16_t old_base);
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extern void sff_set_slot(sff8038i_t *dev, int slot);
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extern void sff_set_irq_line(sff8038i_t *dev, int irq_line);
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extern void sff_set_irq_mode(sff8038i_t *dev, int channel, int irq_mode);
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extern void sff_set_irq_pin(sff8038i_t *dev, int irq_pin);
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extern void sff_set_irq_level(sff8038i_t *dev, int channel, int irq_level);
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#endif /*EMU_HDC_IDE_SFF8038I_H*/
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