75 lines
2.4 KiB
C
75 lines
2.4 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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* Definitions for ISA Plug and Play.
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*
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*
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*
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* Authors: RichardG, <richardg867@gmail.com>
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*
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* Copyright 2021 RichardG.
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*/
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#ifndef EMU_ISAPNP_H
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#define EMU_ISAPNP_H
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#include <stdint.h>
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#define ISAPNP_MEM_DISABLED 0
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#define ISAPNP_IO_DISABLED 0
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#define ISAPNP_IRQ_DISABLED 0
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#define ISAPNP_DMA_DISABLED 4
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enum {
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ISAPNP_CARD_DISABLE = 0,
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ISAPNP_CARD_ENABLE = 1,
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ISAPNP_CARD_FORCE_CONFIG = 2, /* cheat code for UMC UM8669F */
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ISAPNP_CARD_NO_KEY = 3 /* cheat code for Crystal CS423x */
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};
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typedef struct isapnp_device_config_t {
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uint8_t activate;
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struct pnp_mem_t {
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uint32_t base : 24;
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uint32_t size : 24;
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} mem[4];
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struct pnp_mem32_t {
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uint32_t base;
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uint32_t size;
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} mem32[4];
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struct pnp_io_t {
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uint16_t base;
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} io[8];
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struct pnp_irq_t {
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uint8_t irq : 4;
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uint8_t level : 1;
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uint8_t type : 1;
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} irq[2];
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struct pnp_dma_t {
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uint8_t dma : 3;
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} dma[2];
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} isapnp_device_config_t;
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extern const uint8_t isapnp_init_key[32];
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void *isapnp_add_card(uint8_t *rom, uint16_t rom_size,
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void (*config_changed)(uint8_t ld, isapnp_device_config_t *config, void *priv),
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void (*csn_changed)(uint8_t csn, void *priv),
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uint8_t (*read_vendor_reg)(uint8_t ld, uint8_t reg, void *priv),
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void (*write_vendor_reg)(uint8_t ld, uint8_t reg, uint8_t val, void *priv),
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void *priv);
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void isapnp_update_card_rom(void *priv, uint8_t *rom, uint16_t rom_size);
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void isapnp_enable_card(void *priv, uint8_t enable);
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void isapnp_set_csn(void *priv, uint8_t csn);
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uint8_t isapnp_read_reg(void *priv, uint8_t ldn, uint8_t reg);
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void isapnp_write_reg(void *priv, uint8_t ldn, uint8_t reg, uint8_t val);
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void isapnp_set_device_defaults(void *priv, uint8_t ldn, const isapnp_device_config_t *config);
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void isapnp_reset_card(void *priv);
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void isapnp_reset_device(void *priv, uint8_t ld);
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#endif /*EMU_ISAPNP_H*/
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