gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 432 deletions

diff --git a/gpxe/src/drivers/net/3c509.c b/gpxe/src/drivers/net/3c509.c
deleted file mode 100644
index 1c58f779..00000000
--- a/gpxe/src/drivers/net/3c509.c
+++ /dev/null
@@ -1,432 +0,0 @@
-/*
- * Split out into 3c509.c and 3c5x9.c, to make it possible to build a
- * 3c529 module without including ISA, ISAPnP and EISA code.
- *
- */
-
-FILE_LICENCE ( BSD2 );
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <gpxe/io.h>
-#include <unistd.h>
-#include <gpxe/device.h>
-#include <gpxe/isa.h>
-#include "3c509.h"
-
-/*
- * 3c509 cards have their own method of contention resolution; this
- * effectively defines another bus type similar to ISAPnP.  Even the
- * original ISA cards can be programatically mapped to any I/O address
- * in the range 0x200-0x3e0.
- * 
- * However, there is a small problem: once you've activated a card,
- * the only ways to deactivate it will also wipe its tag, meaning that
- * you won't be able to subsequently reactivate it without going
- * through the whole ID sequence again.  The solution we adopt is to
- * isolate and tag all cards at the start, and to immediately
- * re-isolate and re-tag a card after disabling it.
- *
- */
-
-static void t509bus_remove ( struct root_device *rootdev );
-
-static unsigned int t509_id_port = 0;
-static unsigned int t509_max_tag = 0;
-
-/** A 3c509 device */
-struct t509_device {
-	/** Generic device */
-	struct device dev;
-	/** Tag */
-	unsigned int tag;
-	/** I/O address */
-	uint16_t ioaddr;
-	/** Driver-private data
-	 *
-	 * Use t509_set_drvdata() and t509_get_drvdata() to access
-	 * this field.
-	 */
-	void *priv;
-};
-
-/**
- * Set 3c509 driver-private data
- *
- * @v t509		3c509 device
- * @v priv		Private data
- */
-static inline void t509_set_drvdata ( struct t509_device *t509, void *priv ) {
-	t509->priv = priv;
-}
-
-/**
- * Get 3c509 driver-private data
- *
- * @v t509		3c509 device
- * @ret priv		Private data
- */
-static inline void * t509_get_drvdata ( struct t509_device *t509 ) {
-	return t509->priv;
-}
-
-/*
- * t509 utility functions
- *
- */
-
-static inline void t509_set_id_port ( void ) {
-	outb ( 0x00, t509_id_port );
-}
-
-static inline void t509_wait_for_id_sequence ( void ) {
-	outb ( 0x00, t509_id_port );
-}
-
-static inline void t509_global_reset ( void ) {
-	outb ( 0xc0, t509_id_port );
-}
-
-static inline void t509_reset_tag ( void ) {
-	outb ( 0xd0, t509_id_port );
-}
-
-static inline void t509_set_tag ( uint8_t tag ) {
-	outb ( 0xd0 | tag, t509_id_port );
-}
-
-static inline void t509_select_tag ( uint8_t tag ) {
-	outb ( 0xd8 | tag, t509_id_port );
-}
-
-static inline void t509_activate ( uint16_t ioaddr ) {
-	outb ( 0xe0 | ( ioaddr >> 4 ), t509_id_port );
-}
-
-static inline void t509_deactivate_and_reset_tag ( uint16_t ioaddr ) {
-	outb ( GLOBAL_RESET, ioaddr + EP_COMMAND );
-}
-
-static inline void t509_load_eeprom_word ( uint8_t offset ) {
-	outb ( 0x80 | offset, t509_id_port );
-}
-
-/*
- * Find a suitable ID port
- *
- */
-static inline int t509_find_id_port ( void ) {
-
-	for ( t509_id_port = EP_ID_PORT_START ;
-	      t509_id_port < EP_ID_PORT_END ;
-	      t509_id_port += EP_ID_PORT_INC ) {
-		t509_set_id_port ();
-		/* See if anything's listening */
-		outb ( 0xff, t509_id_port );
-		if ( inb ( t509_id_port ) & 0x01 ) {
-			/* Found a suitable port */
-			DBG ( "T509 using ID port at %04x\n", t509_id_port );
-			return 0;
-		}
-	}
-	/* No id port available */
-	DBG ( "T509 found no available ID port\n" );
-	return -ENOENT;
-}
-
-/*
- * Send ID sequence to the ID port
- *
- */
-static void t509_send_id_sequence ( void ) {
-	unsigned short lrs_state, i;
-
-	t509_set_id_port ();
-	/* Reset IDS on cards */
-	t509_wait_for_id_sequence ();
-	lrs_state = 0xff;
-        for ( i = 0; i < 255; i++ ) {
-                outb ( lrs_state, t509_id_port );
-                lrs_state <<= 1;
-                lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
-        }
-}
-
-/*
- * We get eeprom data from the id_port given an offset into the eeprom.
- * Basically; after the ID_sequence is sent to all of the cards; they enter
- * the ID_CMD state where they will accept command requests. 0x80-0xbf loads
- * the eeprom data.  We then read the port 16 times and with every read; the
- * cards check for contention (ie: if one card writes a 0 bit and another
- * writes a 1 bit then the host sees a 0. At the end of the cycle; each card
- * compares the data on the bus; if there is a difference then that card goes
- * into ID_WAIT state again). In the meantime; one bit of data is returned in
- * the AX register which is conveniently returned to us by inb().  Hence; we
- * read 16 times getting one bit of data with each read.
- */
-static uint16_t t509_id_read_eeprom ( int offset ) {
-	int i, data = 0;
-
-	t509_load_eeprom_word ( offset );
-	/* Do we really need this wait? Won't be noticeable anyway */
-	udelay(10000);
-
-	for ( i = 0; i < 16; i++ ) {
-		data = ( data << 1 ) | ( inw ( t509_id_port ) & 1 );
-	}
-	return data;
-}
-
-/*
- * Isolate and tag all t509 cards
- *
- */
-static int t509_isolate ( void ) {
-	unsigned int i;
-	uint16_t contend[3];
-	int rc;
-
-	/* Find a suitable ID port */
-	if ( ( rc = t509_find_id_port() ) != 0 )
-		return rc;
-
-	while ( 1 ) {
-
-		/* All cards are in ID_WAIT state each time we go
-		 * through this loop.
-		 */
-
-		/* Send the ID sequence */
-		t509_send_id_sequence();
-
-		/* First time through, reset all tags.  On subsequent
-		 * iterations, kill off any already-tagged cards
-		 */
-		if ( t509_max_tag == 0 ) {
-			t509_reset_tag();
-		} else {
-			t509_select_tag ( 0 );
-		}
-	
-		/* Read the manufacturer ID, to see if there are any
-		 * more cards
-		 */
-		if ( t509_id_read_eeprom ( EEPROM_MFG_ID ) != MFG_ID ) {
-			DBG ( "T509 saw %s signs of life\n",
-			      t509_max_tag ? "no further" : "no" );
-			break;
-		}
-
-		/* Perform contention selection on the MAC address */
-		for ( i = 0 ; i < 3 ; i++ ) {
-			contend[i] = t509_id_read_eeprom ( i );
-		}
-
-		/* Only one device will still be left alive.  Tag it. */
-		++t509_max_tag;
-		DBG ( "T509 found card %04x%04x%04x, assigning tag %02x\n",
-		      contend[0], contend[1], contend[2], t509_max_tag );
-		t509_set_tag ( t509_max_tag );
-
-		/* Return all cards back to ID_WAIT state */
-		t509_wait_for_id_sequence();
-	}
-
-	DBG ( "T509 found %d cards using ID port %04x\n",
-	      t509_max_tag, t509_id_port );
-	return 0;
-}
-
-/*
- * Activate a T509 device
- *
- * The device will be enabled at whatever ioaddr is specified in the
- * struct t509_device; there is no need to stick with the default
- * ioaddr read from the EEPROM.
- *
- */
-static inline void activate_t509_device ( struct t509_device *t509 ) {
-	t509_send_id_sequence ();
-	t509_select_tag ( t509->tag );
-	t509_activate ( t509->ioaddr );
-	DBG ( "T509 activated device %02x at ioaddr %04x\n",
-	      t509->tag, t509->ioaddr );
-}
-
-/*
- * Deactivate a T509 device
- *
- * Disabling also clears the tag, so we immediately isolate and re-tag
- * this card.
- *
- */
-static inline void deactivate_t509_device ( struct t509_device *t509 ) {
-	t509_deactivate_and_reset_tag ( t509->ioaddr );
-	udelay ( 1000 );
-	t509_send_id_sequence ();
-	t509_select_tag ( 0 );
-	t509_set_tag ( t509->tag );
-	t509_wait_for_id_sequence ();
-	DBG ( "T509 deactivated device at %04x and re-tagged as %02x\n",
-	      t509->ioaddr, t509->tag );
-}
-
-/*
- * The ISA probe function
- *
- */
-static int legacy_t509_probe ( struct nic *nic, void *hwdev ) {
-	struct t509_device *t509 = hwdev;
-
-	/* We could change t509->ioaddr if we wanted to */
-	activate_t509_device ( t509 );
-	nic->ioaddr = t509->ioaddr;
-
-	/* Hand off to generic t5x9 probe routine */
-	return t5x9_probe ( nic, ISA_PROD_ID ( PROD_ID ), ISA_PROD_ID_MASK );
-}
-
-static void legacy_t509_disable ( struct nic *nic, void *hwdev ) {
-	struct t509_device *t509 = hwdev;
-
-	t5x9_disable ( nic );
-	deactivate_t509_device ( t509 );
-}
-
-static inline void legacy_t509_set_drvdata ( void *hwdev, void *priv ) {
-	t509_set_drvdata ( hwdev, priv );
-}
-
-static inline void * legacy_t509_get_drvdata ( void *hwdev ) {
-	return t509_get_drvdata ( hwdev );
-}
-
-/**
- * Probe a 3c509 device
- *
- * @v t509		3c509 device
- * @ret rc		Return status code
- *
- * Searches for a driver for the 3c509 device.  If a driver is found,
- * its probe() routine is called.
- */
-static int t509_probe ( struct t509_device *t509 ) {
-	DBG ( "Adding 3c509 device %02x (I/O %04x)\n",
-	      t509->tag, t509->ioaddr );
-	return legacy_probe ( t509, legacy_t509_set_drvdata, &t509->dev,
-			      legacy_t509_probe, legacy_t509_disable );
-}
-
-/**
- * Remove a 3c509 device
- *
- * @v t509		3c509 device
- */
-static void t509_remove ( struct t509_device *t509 ) {
-	legacy_remove ( t509, legacy_t509_get_drvdata, legacy_t509_disable );
-	DBG ( "Removed 3c509 device %02x\n", t509->tag );
-}
-
-/**
- * Probe 3c509 root bus
- *
- * @v rootdev		3c509 bus root device
- *
- * Scans the 3c509 bus for devices and registers all devices it can
- * find.
- */
-static int t509bus_probe ( struct root_device *rootdev ) {
-	struct t509_device *t509 = NULL;
-	unsigned int tag;
-	unsigned int iobase;
-	int rc;
-
-	/* Perform isolation and tagging */
-	if ( ( rc = t509_isolate() ) != 0 )
-		return rc;
-
-	for ( tag = 1 ; tag <= t509_max_tag ; tag++ ) {
-		/* Allocate struct t509_device */
-		if ( ! t509 )
-			t509 = malloc ( sizeof ( *t509 ) );
-		if ( ! t509 ) {
-			rc = -ENOMEM;
-			goto err;
-		}
-		memset ( t509, 0, sizeof ( *t509 ) );
-		t509->tag = tag;
-
-		/* Send the ID sequence */
-		t509_send_id_sequence ();
-
-		/* Select the specified tag */
-		t509_select_tag ( t509->tag );
-
-		/* Read the default I/O address */
-		iobase = t509_id_read_eeprom ( EEPROM_ADDR_CFG );
-		t509->ioaddr = 0x200 + ( ( iobase & 0x1f ) << 4 );
-
-		/* Send card back to ID_WAIT */
-		t509_wait_for_id_sequence();
-
-		/* Add to device hierarchy */
-		snprintf ( t509->dev.name, sizeof ( t509->dev.name ),
-			   "t509%02x", tag );
-		t509->dev.desc.bus_type = BUS_TYPE_ISA;
-		t509->dev.desc.vendor = MFG_ID;
-		t509->dev.desc.device = PROD_ID;
-		t509->dev.parent = &rootdev->dev;
-		list_add ( &t509->dev.siblings, &rootdev->dev.children );
-		INIT_LIST_HEAD ( &t509->dev.children );
-			
-		/* Look for a driver */
-		if ( t509_probe ( t509 ) == 0 ) {
-			/* t509dev registered, we can drop our ref */
-			t509 = NULL;
-		} else {
-			/* Not registered; re-use struct */
-			list_del ( &t509->dev.siblings );
-		}
-	}
-
-	free ( t509 );
-	return 0;
-
- err:
-	free ( t509 );
-	t509bus_remove ( rootdev );
-	return rc;
-}
-
-/**
- * Remove 3c509 root bus
- *
- * @v rootdev		3c509 bus root device
- */
-static void t509bus_remove ( struct root_device *rootdev ) {
-	struct t509_device *t509;
-	struct t509_device *tmp;
-
-	list_for_each_entry_safe ( t509, tmp, &rootdev->dev.children,
-				   dev.siblings ) {
-		t509_remove ( t509 );
-		list_del ( &t509->dev.siblings );
-		free ( t509 );
-	}
-}
-
-/** 3c509 bus root device driver */
-static struct root_driver t509_root_driver = {
-	.probe = t509bus_probe,
-	.remove = t509bus_remove,
-};
-
-/** 3c509 bus root device */
-struct root_device t509_root_device __root_device = {
-	.dev = { .name = "3c509" },
-	.driver = &t509_root_driver,
-};
-
-ISA_ROM ( "3c509", "3c509" );