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Updated 3c509 to current device model

pull/1/head
Michael Brown 2007-03-10 22:28:22 +00:00
parent 520d9c36af
commit 62548c9f0d
1 changed files with 186 additions and 166 deletions
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352
src/drivers/net/3c509.c
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@ -4,14 +4,13 @@
* *
*/ */
#if 0 #include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include <timer.h>
#include <gpxe/device.h>
#include <gpxe/isa.h> #include <gpxe/isa.h>
#include "io.h"
#include "timer.h"
#include "string.h"
#include "console.h"
#include "dev.h"
#include "3c509.h" #include "3c509.h"
/* /*
@ -29,26 +28,47 @@
* *
*/ */
static uint16_t t509_id_port = 0; static void t509bus_remove ( struct root_device *rootdev );
static uint8_t t509_max_tag = 0;
/* static unsigned int t509_id_port = 0;
* A location on a t509 bus static unsigned int t509_max_tag = 0;
*
*/
struct t509_loc {
uint8_t tag;
};
/* /** A 3c509 device */
* A physical t509 device
*
*/
struct t509_device { struct t509_device {
/** Generic device */
struct device dev;
/** Tag */
unsigned int tag;
/** I/O address */
uint16_t ioaddr; uint16_t ioaddr;
uint8_t tag; /** 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 * t509 utility functions
* *
@ -105,12 +125,12 @@ static inline int t509_find_id_port ( void ) {
if ( inb ( t509_id_port ) & 0x01 ) { if ( inb ( t509_id_port ) & 0x01 ) {
/* Found a suitable port */ /* Found a suitable port */
DBG ( "T509 using ID port at %hx\n", t509_id_port ); DBG ( "T509 using ID port at %hx\n", t509_id_port );
return 1; return 0;
} }
} }
/* No id port available */ /* No id port available */
DBG ( "T509 found no available ID port\n" ); DBG ( "T509 found no available ID port\n" );
return 0; return -ENOENT;
} }
/* /*
@ -160,13 +180,14 @@ static uint16_t t509_id_read_eeprom ( int offset ) {
* Isolate and tag all t509 cards * Isolate and tag all t509 cards
* *
*/ */
static void t509_isolate ( void ) { static int t509_isolate ( void ) {
unsigned int i; unsigned int i;
uint16_t contend[3]; uint16_t contend[3];
int rc;
/* Find a suitable ID port */ /* Find a suitable ID port */
if ( ! t509_find_id_port () ) if ( ( rc = t509_find_id_port () ) != 0 )
return; return rc;
while ( 1 ) { while ( 1 ) {
@ -202,7 +223,7 @@ static void t509_isolate ( void ) {
/* Only one device will still be left alive. Tag it. */ /* Only one device will still be left alive. Tag it. */
++t509_max_tag; ++t509_max_tag;
DBG ( "T509 found card %hx%hx%hx, assigning tag %hhx\n", DBG ( "T509 found card %04x%04x%04x, assigning tag %02x\n",
contend[0], contend[1], contend[2], t509_max_tag ); contend[0], contend[1], contend[2], t509_max_tag );
t509_set_tag ( t509_max_tag ); t509_set_tag ( t509_max_tag );
@ -210,119 +231,11 @@ static void t509_isolate ( void ) {
t509_wait_for_id_sequence(); t509_wait_for_id_sequence();
} }
DBG ( "T509 found %d cards using ID port %hx\n", DBG ( "T509 found %d cards using ID port %04x\n",
t509_max_tag, t509_id_port ); t509_max_tag, t509_id_port );
return; return 0;
} }
/*
* Increment a bus_loc structure to the next possible T509 location.
* Leave the structure zeroed and return 0 if there are no more valid
* locations.
*
*/
static int t509_next_location ( struct bus_loc *bus_loc ) {
struct t509_loc *t509_loc = ( struct t509_loc * ) bus_loc;
/*
* Ensure that there is sufficient space in the shared bus
* structures for a struct t509_loc and a struct t509_dev,
* as mandated by bus.h.
*
*/
BUS_LOC_CHECK ( struct t509_loc );
BUS_DEV_CHECK ( struct t509_device );
return ( t509_loc->tag = ( ++t509_loc->tag & EP_TAG_MAX ) );
}
/*
* Fill in parameters for a T509 device based on tag
*
* Return 1 if device present, 0 otherwise
*
*/
static int t509_fill_device ( struct bus_dev *bus_dev,
struct bus_loc *bus_loc ) {
struct t509_device *t509 = ( struct t509_device * ) bus_dev;
struct t509_loc *t509_loc = ( struct t509_loc * ) bus_loc;
uint16_t iobase;
/* Copy tag to struct t509 */
t509->tag = t509_loc->tag;
/* Tag 0 is never valid, but may be passed in */
if ( ! t509->tag )
return 0;
/* Perform isolation if it hasn't yet been done */
if ( ! t509_id_port )
t509_isolate();
/* Check tag is in range */
if ( t509->tag > t509_max_tag )
return 0;
/* 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();
DBG ( "T509 found device %hhx, base %hx\n", t509->tag, t509->ioaddr );
return 1;
}
/*
* Test whether or not a driver is capable of driving the device.
* This is a no-op for T509.
*
*/
static int t509_check_driver ( struct bus_dev *bus_dev __unused,
struct device_driver *device_driver __unused ) {
return 1;
}
/*
* Describe a T509 device
*
*/
static char * t509_describe_device ( struct bus_dev *bus_dev ) {
struct t509_device *t509 = ( struct t509_device * ) bus_dev;
static char t509_description[] = "T509 00";
sprintf ( t509_description + 4, "%hhx", t509->tag );
return t509_description;
}
/*
* Name a T509 device
*
*/
static const char * t509_name_device ( struct bus_dev *bus_dev __unused ) {
return "T509";
}
/*
* T509 bus operations table
*
*/
struct bus_driver t509_driver __bus_driver = {
.name = "T509",
.next_location = t509_next_location,
.fill_device = t509_fill_device,
.check_driver = t509_check_driver,
.describe_device = t509_describe_device,
.name_device = t509_name_device,
};
/* /*
* Activate a T509 device * Activate a T509 device
* *
@ -335,7 +248,7 @@ static inline void activate_t509_device ( struct t509_device *t509 ) {
t509_send_id_sequence (); t509_send_id_sequence ();
t509_select_tag ( t509->tag ); t509_select_tag ( t509->tag );
t509_activate ( t509->ioaddr ); t509_activate ( t509->ioaddr );
DBG ( "T509 activated device %hhx at ioaddr %hx\n", DBG ( "T509 activated device %02x at ioaddr %04x\n",
t509->tag, t509->ioaddr ); t509->tag, t509->ioaddr );
} }
@ -353,53 +266,160 @@ static inline void deactivate_t509_device ( struct t509_device *t509 ) {
t509_select_tag ( 0 ); t509_select_tag ( 0 );
t509_set_tag ( t509->tag ); t509_set_tag ( t509->tag );
t509_wait_for_id_sequence (); t509_wait_for_id_sequence ();
DBG ( "T509 deactivated device at %hx and re-tagged as %hhx\n", DBG ( "T509 deactivated device at %04x and re-tagged as %02x\n",
t509->ioaddr, t509->tag ); t509->ioaddr, t509->tag );
} }
/*
* Fill in a nic structure
*
* Called only once, so inlined for efficiency
*
*/
static inline void t509_fill_nic ( struct nic *nic,
struct t509_device *t509 ) {
/* Fill in ioaddr and irqno */
nic->ioaddr = t509->ioaddr;
nic->irqno = 0;
/* Fill in DHCP device ID structure */
nic->dhcp_dev_id.bus_type = ISA_BUS_TYPE;
nic->dhcp_dev_id.vendor_id = htons ( MFG_ID );
nic->dhcp_dev_id.device_id = htons ( PROD_ID );
}
/* /*
* The ISA probe function * The ISA probe function
* *
*/ */
static int el3_t509_probe ( struct nic *nic, struct t509_device *t509 ) { static int legacy_t509_probe ( struct nic *nic, void *t509 ) {
/* We could change t509->ioaddr if we wanted to */ /* We could change t509->ioaddr if we wanted to */
activate_t509_device ( t509 ); activate_t509_device ( t509 );
t509_fill_nic ( nic, t509 );
/* Hand off to generic t5x9 probe routine */ /* Hand off to generic t5x9 probe routine */
return t5x9_probe ( nic, ISA_PROD_ID ( PROD_ID ), ISA_PROD_ID_MASK ); return t5x9_probe ( nic, ISA_PROD_ID ( PROD_ID ), ISA_PROD_ID_MASK );
} }
static void el3_t509_disable ( struct nic *nic, struct t509_device *t509 ) { static void legacy_t509_disable ( struct nic *nic, void *t509 ) {
t5x9_disable ( nic ); t5x9_disable ( nic );
deactivate_t509_device ( t509 ); deactivate_t509_device ( t509 );
} }
struct {} el3_t509_driver; static inline void legacy_t509_set_drvdata ( void *hwdev, void *priv ) {
t509_set_drvdata ( hwdev, priv );
}
DRIVER ( "3c509", nic_driver, t509_driver, el3_t509_driver, static inline void * legacy_t509_get_drvdata ( void *hwdev ) {
el3_t509_probe, el3_t509_disable ); 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" ); ISA_ROM ( "3c509", "3c509" );
#endif