isa.h

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#ifndef ISA_H
#define ISA_H

FILE_LICENCE ( GPL2_OR_LATER );

#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 );
};

/** ISA driver table */
#define ISA_DRIVERS __table ( struct isa_driver, "isa_drivers" )

/** Declare an ISA driver */
#define __isa_driver __table_entry ( 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 */