Add ISAPnP framework

src/include/86box/isapnp.h

@@ -0,0 +1,58 @@
+/*
+ * 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.
+ *
+ *
+ *
+ * Author:	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
+
+
+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_set_csn(void *priv, uint8_t csn);
+uint8_t	isapnp_get_rom_checksum(void *priv);
+
+
+#endif	/*EMU_ISAPNP_H*/