86Box/src/include/86box/isapnp.h

/*
 * 86Box    A hypervisor and IBM PC system emulator that specializes in
 *          running old operating systems and software designed for IBM
 *          PC systems and compatibles from 1981 through fairly recent
 *          system designs based on the PCI bus.
 *
 *          This file is part of the 86Box distribution.
 *
 *          Definitions for ISA Plug and Play.
 *
 *
 *
 * Authors: RichardG, <richardg867@gmail.com>
 *
 *          Copyright 2021 RichardG.
 */

#ifndef EMU_ISAPNP_H
#define EMU_ISAPNP_H
#include <stdint.h>

#define ISAPNP_MEM_DISABLED 0
#define ISAPNP_IO_DISABLED  0
#define ISAPNP_IRQ_DISABLED 0
#define ISAPNP_DMA_DISABLED 4

enum {
    ISAPNP_CARD_DISABLE = 0,
    ISAPNP_CARD_ENABLE  = 1,
    ISAPNP_CARD_FORCE_CONFIG, /* cheat code for UMC UM8669F */
    ISAPNP_CARD_NO_KEY        /* cheat code for Crystal CS423x */
};

typedef struct {
    uint8_t activate;
    struct {
        uint32_t base : 24, size : 24;
    } mem[4];
    struct {
        uint32_t base, size;
    } mem32[4];
    struct {
        uint16_t base;
    } io[8];
    struct {
        uint8_t irq : 4, level : 1, type : 1;
    } irq[2];
    struct {
        uint8_t dma : 3;
    } dma[2];
} isapnp_device_config_t;

void *isapnp_add_card(uint8_t *rom, uint16_t rom_size,
                      void (*config_changed)(uint8_t ld, isapnp_device_config_t *config, void *priv),
                      void (*csn_changed)(uint8_t csn, void *priv),
                      uint8_t (*read_vendor_reg)(uint8_t ld, uint8_t reg, void *priv),
                      void (*write_vendor_reg)(uint8_t ld, uint8_t reg, uint8_t val, void *priv),
                      void *priv);
void  isapnp_update_card_rom(void *priv, uint8_t *rom, uint16_t rom_size);
void  isapnp_enable_card(void *priv, uint8_t enable);
void  isapnp_set_csn(void *priv, uint8_t csn);
void  isapnp_set_device_defaults(void *priv, uint8_t ldn, const isapnp_device_config_t *config);
void  isapnp_reset_card(void *priv);
void  isapnp_reset_device(void *priv, uint8_t ld);

#endif /*EMU_ISAPNP_H*/