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Cleaned up isolation protocol.
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Michael Brown
@@ -18,69 +18,65 @@
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Portions of this code:
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* Copyright (C) 2001 P.J.H.Fox (fox@roestock.demon.co.uk)
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* Copyright (C) 2001 P.J.H.Fox (fox@roestock.demon.co.uk)
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*
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*
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*
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* REVISION HISTORY:
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* ================
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* Version 0.1 April 26, 2002 TJL
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* Version 0.2 01/08/2003 TJL Renamed from 3c515_isapnp.h
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* Version 0.2 01/08/2003 TJL Renamed from 3c515_isapnp.h
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*
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*
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* Generalised into an ISAPnP bus that can be used by more than just
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* the 3c515 by Michael Brown <mbrown@fensystems.co.uk>
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*
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***************************************************************************/
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/*extern int read_port;*/
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/*#define DEBUG*/
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#define ADDRESS_ADDR 0x0279
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#define WRITEDATA_ADDR 0x0a79
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/* MIN and MAX READ_ADDR must have the bottom two bits set */
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#define MIN_READ_ADDR 0x0203
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#define START_READ_ADDR 0x203
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#define MAX_READ_ADDR 0x03ff
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/* READ_ADDR_STEP must be a multiple of 4 */
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#ifndef READ_ADDR_STEP
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#define READ_ADDR_STEP 8
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#endif
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#ifndef ISAPNP_H
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#define ISAPNP_H
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#ifdef EDEBUG
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static int x;
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#define ADDRESS(x) (outb(x, ADDRESS_ADDR), printf("\nAddress: %hX", x))
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#define WRITE_DATA(x) (outb(x, WRITEDATA_ADDR), printf(" WR(%hX)", x & 0xff))
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#define READ_DATA (x = inb(read_port), printf(" RD(%hX)", x & 0xff), x)
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#define READ_IOPORT(p) (x = inb(p), printf(" [%hX](%hX)", p, x & 0xff), x)
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#else /* !DEBUG */
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#define ADDRESS(x) outb(x, ADDRESS_ADDR)
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#define WRITE_DATA(x) outb(x, WRITEDATA_ADDR)
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#define READ_DATA inb(read_port)
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#define READ_IOPORT(p) inb(p)
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#endif /* !DEBUG */
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#include "isa_ids.h"
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#include "dev.h"
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/*
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* ISAPnP constants
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*
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*/
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#define INIT_LENGTH 32
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#define INITDATA { 0x6a, 0xb5, 0xda, 0xed, 0xf6, 0xfb, 0x7d, 0xbe,\
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0xdf, 0x6f, 0x37, 0x1b, 0x0d, 0x86, 0xc3, 0x61,\
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0xb0, 0x58, 0x2c, 0x16, 0x8b, 0x45, 0xa2, 0xd1,\
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0xe8, 0x74, 0x3a, 0x9d, 0xce, 0xe7, 0x73, 0x39 }
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/* Port addresses */
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#define ISAPNP_ADDRESS 0x279
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#define ISAPNP_WRITE_DATA 0xa79
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#define ISAPNP_READ_PORT_MIN 0x213 /* ISAPnP spec says 0x203, but
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* Linux ISAPnP starts at
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* 0x213 with no explanatory
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* comment. 0x203 probably
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* clashes with something. */
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#define ISAPNP_READ_PORT_MAX 0x3ff
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#define ISAPNP_READ_PORT_STEP 0x08 /* Can be any multiple of 4 */
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/* Registers */
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#define SetRdPort(x) (ADDRESS(0x00),WRITE_DATA((x)>>2),read_port=((x)|3))
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#define SERIALISOLATION ADDRESS(0x01)
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#define CONFIGCONTROL ADDRESS(0x02)
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#define Wake(x) (ADDRESS(0x03),WRITE_DATA(x))
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#define RESOURCEDATA (ADDRESS(0x04),READ_DATA)
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#define STATUS (ADDRESS(0x05),READ_DATA)
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#define CARDSELECTNUMBER ADDRESS(0x06)
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#define LOGICALDEVICENUMBER ADDRESS(0x07)
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#define ACTIVATE ADDRESS(0x30)
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#define IORANGECHECK ADDRESS(0x31)
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#define ISAPNP_READPORT 0x00
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#define ISAPNP_SERIALISOLATION 0x01
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#define ISAPNP_CONFIGCONTROL 0x02
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#define ISAPNP_WAKE 0x03
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#define ISAPNP_RESOURCEDATA 0x04
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#define ISAPNP_STATUS 0x05
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#define ISAPNP_CARDSELECTNUMBER 0x06
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#define ISAPNP_LOGICALDEVICENUMBER 0x07
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#define ISAPNP_ACTIVATE 0x30
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#define ISAPNP_IORANGECHECK 0x31
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/* Bits */
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#define CONFIG_RESET 0x01
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#define CONFIG_WAIT_FOR_KEY 0x02
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#define CONFIG_RESET_CSN 0x04
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#define CONFIG_RESET_DRV 0x07
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/* Bits in the CONFIGCONTROL register */
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#define ISAPNP_CONFIG_RESET ( 1 << 0 )
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#define ISAPNP_CONFIG_WAIT_FOR_KEY ( 1 << 1 )
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#define ISAPNP_CONFIG_RESET_CSN ( 1 << 2 )
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#define ISAPNP_CONFIG_RESET_DRV ( ISAPNP_CONFIG_RESET | \
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ISAPNP_CONFIG_WAIT_FOR_KEY | \
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ISAPNP_CONFIG_RESET_CSN )
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/* The LFSR used for the initiation key and for checksumming */
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#define ISAPNP_LFSR_SEED 0x6a
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/* Short Tags */
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#define PnPVerNo_TAG 0x01
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@@ -122,3 +118,70 @@ static int x;
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#define RsvdLongE_TAG 0xFE
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#define RsvdLongF_TAG 0xFF
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#define NewBoard_PSEUDOTAG 0x100
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/*
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* An ISAPnP serial identifier
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*
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*/
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union isapnp_identifier {
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char bytes[9];
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struct {
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uint16_t vendor_id;
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uint16_t product_id;
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uint32_t serial;
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uint8_t checksum;
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} __attribute__ (( packed ));
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} __attribute__ (( packed ));
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/*
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* A physical ISAPnP device
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*
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*/
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struct isapnp_device {
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char *magic; /* must be first */
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const char *name;
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unsigned char csn;
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uint16_t vendor_id;
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uint16_t prod_id;
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int already_tried;
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};
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/*
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* An individual ISAPnP device identified by ID
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*
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*/
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struct isapnp_id {
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const char *name;
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uint16_t vendor_id, prod_id;
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};
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/*
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* An ISAPnP driver, with a device ID (struct isapnp_id) table.
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*
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*/
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struct isapnp_driver {
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const char *name;
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struct isapnp_id *ids;
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unsigned int id_count;
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};
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/*
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* Define an ISAPnP driver
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*
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*/
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#define ISAPNP_DRIVER( driver_name, isapnp_ids ) { \
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.name = driver_name, \
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.ids = isapnp_ids, \
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.id_count = sizeof ( isapnp_ids ) / sizeof ( isapnp_ids[0] ), \
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}
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/*
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* Functions in isapnp.c
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*
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*/
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extern int find_isapnp_device ( struct isapnp_device *isapnp,
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struct isapnp_driver *driver );
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extern int find_isapnp_boot_device ( struct dev *dev,
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struct isapnp_driver *driver );
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#endif /* ISAPNP_H */
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