107 lines
2.0 KiB
C
107 lines
2.0 KiB
C
/*
|
|
* MCA bus driver code
|
|
*
|
|
* Abstracted from 3c509.c.
|
|
*
|
|
*/
|
|
|
|
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
|
|
|
|
#ifndef MCA_H
|
|
#define MCA_H
|
|
|
|
#include <ipxe/isa_ids.h>
|
|
#include <ipxe/device.h>
|
|
#include <ipxe/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;
|
|
};
|
|
|
|
#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
|