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/**************************************************************************
*
* isapnp.h -- Etherboot isapnp support for the 3Com 3c515
* Written 2002-2003 by Timothy Legge <tlegge@rogers.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Portions of this code:
* Copyright (C) 2001 P.J.H.Fox (fox@roestock.demon.co.uk)
*
*
*
* REVISION HISTORY:
* ================
* Version 0.1 April 26, 2002 TJL
* Version 0.2 01/08/2003 TJL Renamed from 3c515_isapnp.h
*
*
* Generalised into an ISAPnP bus that can be used by more than just
* the 3c515 by Michael Brown <mbrown@fensystems.co.uk>
*
***************************************************************************/
FILE_LICENCE ( GPL2_OR_LATER );
#ifndef ISAPNP_H
#define ISAPNP_H
#include <stdint.h>
#include <gpxe/isa_ids.h>
#include <gpxe/device.h>
#include <gpxe/tables.h>
/*
* ISAPnP constants
*
*/
/* Port addresses */
#define ISAPNP_ADDRESS 0x279
#define ISAPNP_WRITE_DATA 0xa79
#define ISAPNP_READ_PORT_MIN 0x203
#define ISAPNP_READ_PORT_START 0x213 /* ISAPnP spec says 0x203, but
* Linux ISAPnP starts at
* 0x213 with no explanatory
* comment. 0x203 probably
* clashes with something. */
#define ISAPNP_READ_PORT_MAX 0x3ff
#define ISAPNP_READ_PORT_STEP 0x10 /* Can be any multiple of 4
* according to the spec, but
* since ISA I/O addresses are
* allocated in blocks of 16,
* it makes no sense to use
* any value less than 16.
*/
/* Card select numbers */
#define ISAPNP_CSN_MIN 0x01
#define ISAPNP_CSN_MAX 0x0f
/* Registers */
#define ISAPNP_READPORT 0x00
#define ISAPNP_SERIALISOLATION 0x01
#define ISAPNP_CONFIGCONTROL 0x02
#define ISAPNP_WAKE 0x03
#define ISAPNP_RESOURCEDATA 0x04
#define ISAPNP_STATUS 0x05
#define ISAPNP_CARDSELECTNUMBER 0x06
#define ISAPNP_LOGICALDEVICENUMBER 0x07
#define ISAPNP_ACTIVATE 0x30
#define ISAPNP_IORANGECHECK 0x31
#define ISAPNP_IOBASE(n) ( 0x60 + ( (n) * 2 ) )
#define ISAPNP_IRQNO(n) ( 0x70 + ( (n) * 2 ) )
#define ISAPNP_IRQTYPE(n) ( 0x71 + ( (n) * 2 ) )
/* Bits in the CONFIGCONTROL register */
#define ISAPNP_CONFIG_RESET ( 1 << 0 )
#define ISAPNP_CONFIG_WAIT_FOR_KEY ( 1 << 1 )
#define ISAPNP_CONFIG_RESET_CSN ( 1 << 2 )
#define ISAPNP_CONFIG_RESET_DRV ( ISAPNP_CONFIG_RESET | \
ISAPNP_CONFIG_WAIT_FOR_KEY | \
ISAPNP_CONFIG_RESET_CSN )
/* The LFSR used for the initiation key and for checksumming */
#define ISAPNP_LFSR_SEED 0x6a
/* Small tags */
#define ISAPNP_IS_SMALL_TAG(tag) ( ! ( (tag) & 0x80 ) )
#define ISAPNP_SMALL_TAG_NAME(tag) ( ( (tag) >> 3 ) & 0xf )
#define ISAPNP_SMALL_TAG_LEN(tag) ( ( (tag) & 0x7 ) )
#define ISAPNP_TAG_PNPVERNO 0x01
#define ISAPNP_TAG_LOGDEVID 0x02
#define ISAPNP_TAG_COMPATDEVID 0x03
#define ISAPNP_TAG_IRQ 0x04
#define ISAPNP_TAG_DMA 0x05
#define ISAPNP_TAG_STARTDEP 0x06
#define ISAPNP_TAG_ENDDEP 0x07
#define ISAPNP_TAG_IOPORT 0x08
#define ISAPNP_TAG_FIXEDIO 0x09
#define ISAPNP_TAG_RSVDSHORTA 0x0A
#define ISAPNP_TAG_RSVDSHORTB 0x0B
#define ISAPNP_TAG_RSVDSHORTC 0x0C
#define ISAPNP_TAG_RSVDSHORTD 0x0D
#define ISAPNP_TAG_VENDORSHORT 0x0E
#define ISAPNP_TAG_END 0x0F
/* Large tags */
#define ISAPNP_IS_LARGE_TAG(tag) ( ( (tag) & 0x80 ) )
#define ISAPNP_LARGE_TAG_NAME(tag) (tag)
#define ISAPNP_TAG_MEMRANGE 0x81
#define ISAPNP_TAG_ANSISTR 0x82
#define ISAPNP_TAG_UNICODESTR 0x83
#define ISAPNP_TAG_VENDORLONG 0x84
#define ISAPNP_TAG_MEM32RANGE 0x85
#define ISAPNP_TAG_FIXEDMEM32RANGE 0x86
#define ISAPNP_TAG_RSVDLONG0 0xF0
#define ISAPNP_TAG_RSVDLONG1 0xF1
#define ISAPNP_TAG_RSVDLONG2 0xF2
#define ISAPNP_TAG_RSVDLONG3 0xF3
#define ISAPNP_TAG_RSVDLONG4 0xF4
#define ISAPNP_TAG_RSVDLONG5 0xF5
#define ISAPNP_TAG_RSVDLONG6 0xF6
#define ISAPNP_TAG_RSVDLONG7 0xF7
#define ISAPNP_TAG_RSVDLONG8 0xF8
#define ISAPNP_TAG_RSVDLONG9 0xF9
#define ISAPNP_TAG_RSVDLONGA 0xFA
#define ISAPNP_TAG_RSVDLONGB 0xFB
#define ISAPNP_TAG_RSVDLONGC 0xFC
#define ISAPNP_TAG_RSVDLONGD 0xFD
#define ISAPNP_TAG_RSVDLONGE 0xFE
#define ISAPNP_TAG_RSVDLONGF 0xFF
#define ISAPNP_TAG_PSEUDO_NEWBOARD 0x100
/** An ISAPnP serial identifier */
struct isapnp_identifier {
/** Vendor ID */
uint16_t vendor_id;
/** Product ID */
uint16_t prod_id;
/** Serial number */
uint32_t serial;
/** Checksum */
uint8_t checksum;
} __attribute__ (( packed ));
/** An ISAPnP logical device ID structure */
struct isapnp_logdevid {
/** Vendor ID */
uint16_t vendor_id;
/** Product ID */
uint16_t prod_id;
/** Flags */
uint16_t flags;
} __attribute__ (( packed ));
/** An ISAPnP device ID list entry */
struct isapnp_device_id {
/** Name */
const char *name;
/** Vendor ID */
uint16_t vendor_id;
/** Product ID */
uint16_t prod_id;
};
/** An ISAPnP device */
struct isapnp_device {
/** Generic device */
struct device dev;
/** Vendor ID */
uint16_t vendor_id;
/** Product ID */
uint16_t prod_id;
/** I/O address */
uint16_t ioaddr;
/** Interrupt number */
uint8_t irqno;
/** Card Select Number */
uint8_t csn;
/** Logical Device ID */
uint8_t logdev;
/** Driver for this device */
struct isapnp_driver *driver;
/** Driver-private data
*
* Use isapnp_set_drvdata() and isapnp_get_drvdata() to access
* this field.
*/
void *priv;
/** Driver name */
const char *driver_name;
};
/** An ISAPnP driver */
struct isapnp_driver {
/** ISAPnP ID table */
struct isapnp_device_id *ids;
/** Number of entries in ISAPnP ID table */
unsigned int id_count;
/**
* Probe device
*
* @v isapnp ISAPnP device
* @v id Matching entry in ID table
* @ret rc Return status code
*/
int ( * probe ) ( struct isapnp_device *isapnp,
const struct isapnp_device_id *id );
/**
* Remove device
*
* @v isapnp ISAPnP device
*/
void ( * remove ) ( struct isapnp_device *isapnp );
};
/** ISAPnP driver table */
#define ISAPNP_DRIVERS __table ( struct isapnp_driver, "isapnp_drivers" )
/** Declare an ISAPnP driver */
#define __isapnp_driver __table_entry ( ISAPNP_DRIVERS, 01 )
extern uint16_t isapnp_read_port;
extern void isapnp_device_activation ( struct isapnp_device *isapnp,
int activation );
/**
* Activate ISAPnP device
*
* @v isapnp ISAPnP device
*/
static inline void activate_isapnp_device ( struct isapnp_device *isapnp ) {
isapnp_device_activation ( isapnp, 1 );
}
/**
* Deactivate ISAPnP device
*
* @v isapnp ISAPnP device
*/
static inline void deactivate_isapnp_device ( struct isapnp_device *isapnp ) {
isapnp_device_activation ( isapnp, 0 );
}
/**
* Set ISAPnP driver-private data
*
* @v isapnp ISAPnP device
* @v priv Private data
*/
static inline void isapnp_set_drvdata ( struct isapnp_device *isapnp,
void *priv ) {
isapnp->priv = priv;
}
/**
* Get ISAPnP driver-private data
*
* @v isapnp ISAPnP device
* @ret priv Private data
*/
static inline void * isapnp_get_drvdata ( struct isapnp_device *isapnp ) {
return isapnp->priv;
}
#endif /* ISAPNP_H */
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