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/*
* MCA bus driver code
*
* Abstracted from 3c509.c.
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#ifndef MCA_H
#define MCA_H
#include <gpxe/isa_ids.h>
#include <gpxe/device.h>
#include <gpxe/tables.h>
/*
* MCA constants
*
*/
#define MCA_MOTHERBOARD_SETUP_REG 0x94
#define MCA_ADAPTER_SETUP_REG 0x96
#define MCA_MAX_SLOT_NR 0x07 /* Must be 2^n - 1 */
#define MCA_POS_REG(n) (0x100+(n))
/* Is there a standard that would define this? */
#define GENERIC_MCA_VENDOR ISA_VENDOR ( 'M', 'C', 'A' )
/** An MCA device ID list entry */
struct mca_device_id {
/** Name */
const char *name;
/** Device ID */
uint16_t id;
};
/** An MCA device */
struct mca_device {
/** Generic device */
struct device dev;
/** Slot number */
unsigned int slot;
/** POS register values */
unsigned char pos[8];
/** Driver for this device */
struct mca_driver *driver;
/** Driver-private data
*
* Use mca_set_drvdata() and mca_get_drvdata() to access
* this field.
*/
void *priv;
/** Driver name */
const char *driver_name;
};
#define MCA_ID(mca) ( ( (mca)->pos[1] << 8 ) + (mca)->pos[0] )
/** An MCA driver */
struct mca_driver {
/** MCA ID table */
struct mca_device_id *ids;
/** Number of entries in MCA ID table */
unsigned int id_count;
/**
* Probe device
*
* @v mca MCA device
* @v id Matching entry in ID table
* @ret rc Return status code
*/
int ( * probe ) ( struct mca_device *mca,
const struct mca_device_id *id );
/**
* Remove device
*
* @v mca MCA device
*/
void ( * remove ) ( struct mca_device *mca );
};
/** MCA driver table */
#define MCA_DRIVERS __table ( struct mca_driver, "mca_drivers" )
/** Declare an MCA driver */
#define __mca_driver __table_entry ( MCA_DRIVERS, 01 )
/**
* Set MCA driver-private data
*
* @v mca MCA device
* @v priv Private data
*/
static inline void mca_set_drvdata ( struct mca_device *mca, void *priv ) {
mca->priv = priv;
}
/**
* Get MCA driver-private data
*
* @v mca MCA device
* @ret priv Private data
*/
static inline void * mca_get_drvdata ( struct mca_device *mca ) {
return mca->priv;
}
#endif
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