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#ifndef EISA_H
#define EISA_H
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <gpxe/isa_ids.h>
#include <gpxe/device.h>
#include <gpxe/tables.h>
/*
* EISA constants
*
*/
#define EISA_MIN_SLOT (0x1)
#define EISA_MAX_SLOT (0xf) /* Must be 2^n - 1 */
#define EISA_SLOT_BASE( n ) ( 0x1000 * (n) )
#define EISA_VENDOR_ID ( 0xc80 )
#define EISA_PROD_ID ( 0xc82 )
#define EISA_GLOBAL_CONFIG ( 0xc84 )
#define EISA_CMD_RESET ( 1 << 2 )
#define EISA_CMD_ENABLE ( 1 << 0 )
/** An EISA device ID list entry */
struct eisa_device_id {
/** Name */
const char *name;
/** Manufacturer ID */
uint16_t vendor_id;
/** Product ID */
uint16_t prod_id;
};
/** An EISA device */
struct eisa_device {
/** Generic device */
struct device dev;
/** Slot number */
unsigned int slot;
/** I/O address */
uint16_t ioaddr;
/** Manufacturer ID */
uint16_t vendor_id;
/** Product ID */
uint16_t prod_id;
/** Driver for this device */
struct eisa_driver *driver;
/** Driver-private data
*
* Use eisa_set_drvdata() and eisa_get_drvdata() to access
* this field.
*/
void *priv;
/** Driver name */
const char *driver_name;
};
/** An EISA driver */
struct eisa_driver {
/** EISA ID table */
struct eisa_device_id *ids;
/** Number of entries in EISA ID table */
unsigned int id_count;
/**
* Probe device
*
* @v eisa EISA device
* @v id Matching entry in ID table
* @ret rc Return status code
*/
int ( * probe ) ( struct eisa_device *eisa,
const struct eisa_device_id *id );
/**
* Remove device
*
* @v eisa EISA device
*/
void ( * remove ) ( struct eisa_device *eisa );
};
/** EISA driver table */
#define EISA_DRIVERS __table ( struct eisa_driver, "eisa_drivers" )
/** Declare an EISA driver */
#define __eisa_driver __table_entry ( EISA_DRIVERS, 01 )
extern void eisa_device_enabled ( struct eisa_device *eisa, int enabled );
/**
* Enable EISA device
*
* @v eisa EISA device
*/
static inline void enable_eisa_device ( struct eisa_device *eisa ) {
eisa_device_enabled ( eisa, 1 );
}
/**
* Disable EISA device
*
* @v eisa EISA device
*/
static inline void disable_eisa_device ( struct eisa_device *eisa ) {
eisa_device_enabled ( eisa, 0 );
}
/**
* Set EISA driver-private data
*
* @v eisa EISA device
* @v priv Private data
*/
static inline void eisa_set_drvdata ( struct eisa_device *eisa, void *priv ) {
eisa->priv = priv;
}
/**
* Get EISA driver-private data
*
* @v eisa EISA device
* @ret priv Private data
*/
static inline void * eisa_get_drvdata ( struct eisa_device *eisa ) {
return eisa->priv;
}
#endif /* EISA_H */
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