Updated ISAPnP, EISA, MCA and ISA buses to current device model.

ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and
MCA (3c529) variants should build OK.

None of this code is yet tested.

src/include/gpxe/isa.h

@@ -0,0 +1,92 @@
+#ifndef	ISA_H
+#define ISA_H
+
+#include <stdint.h>
+#include <gpxe/isa_ids.h>
+#include <gpxe/device.h>
+#include <gpxe/tables.h>
+
+/** An ISA device */
+struct isa_device {
+	/** Generic device */
+	struct device dev;
+	/** I/O address */
+	uint16_t ioaddr;
+	/** Driver for this device */
+	struct isa_driver *driver;
+	/** Driver-private data
+	 *
+	 * Use isa_set_drvdata() and isa_get_drvdata() to access
+	 * this field.
+	 */
+	void *priv;
+	/** Driver name */
+	const char *driver_name;
+};
+
+/*
+ * An individual ISA device, identified by probe address
+ *
+ */
+typedef uint16_t isa_probe_addr_t;
+
+/** An ISA driver */
+struct isa_driver {
+	/** Name */
+	const char *name;
+	/** Probe address list */
+	isa_probe_addr_t *probe_addrs;
+	/** Number of entries in probe address list */
+	unsigned int addr_count;
+	/** Manufacturer ID to be assumed for this device */
+	uint16_t vendor_id;
+	/** Product ID to be assumed for this device */
+	uint16_t prod_id;
+	/**
+	 * Probe device
+	 *
+	 * @v isa	ISA device
+	 * @v id	Matching entry in ID table
+	 * @ret rc	Return status code
+	 */
+	int ( * probe ) ( struct isa_device *isa );
+	/**
+	 * Remove device
+	 *
+	 * @v isa	ISA device
+	 */
+	void ( * remove ) ( struct isa_device *isa );
+};
+
+/** Declare an ISA driver */
+#define __isa_driver __table ( struct isa_driver, isa_drivers, 01 )
+
+/**
+ * Set ISA driver-private data
+ *
+ * @v isa		ISA device
+ * @v priv		Private data
+ */
+static inline void isa_set_drvdata ( struct isa_device *isa, void *priv ) {
+	isa->priv = priv;
+}
+
+/**
+ * Get ISA driver-private data
+ *
+ * @v isa		ISA device
+ * @ret priv		Private data
+ */
+static inline void * isa_get_drvdata ( struct isa_device *isa ) {
+	return isa->priv;
+}
+
+/*
+ * ISA_ROM is parsed by parserom.pl to generate Makefile rules and
+ * files for rom-o-matic.
+ *
+ */
+#define ISA_ROM( IMAGE, DESCRIPTION )
+
+#endif /* ISA_H */
+