/*
drivers / net / ethernet / dec / tulip / timer . c
Copyright 2000 , 2001 The Linux Kernel Team
Written / copyright 1994 - 2001 by Donald Becker .
This software may be used and distributed according to the terms
of the GNU General Public License , incorporated herein by reference .
Please submit bugs to http : //bugzilla.kernel.org/ .
*/
#include "tulip.h"
void tulip_media_task(struct work_struct *work)
{
struct tulip_private *tp =
container_of(work, struct tulip_private, media_work);
struct net_device *dev = tp->dev;
void __iomem *ioaddr = tp->base_addr;
u32 csr12 = ioread32(ioaddr + CSR12);
int next_tick = 2 *HZ;
unsigned long flags;
if (tulip_debug > 2 ) {
netdev_dbg(dev, "Media selection tick, %s, status %08x mode %08x SIA %08x %08x %08x %08x\n" ,
medianame[dev->if_port],
ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR6),
csr12, ioread32(ioaddr + CSR13),
ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));
}
switch (tp->chip_id) {
case DC21140:
case DC21142:
case MX98713:
case COMPEX9881:
case DM910X:
default : {
struct medialeaf *mleaf;
unsigned char *p;
if (tp->mtable == NULL) { /* No EEPROM info, use generic code. */
/* Not much that can be done.
Assume this a generic MII or SYM transceiver. */
next_tick = 60 *HZ;
if (tulip_debug > 2 )
netdev_dbg(dev, "network media monitor CSR6 %08x CSR12 0x%02x\n" ,
ioread32(ioaddr + CSR6),
csr12 & 0 xff);
break ;
}
mleaf = &tp->mtable->mleaf[tp->cur_index];
p = mleaf->leafdata;
switch (mleaf->type) {
case 0 : case 4 : {
/* Type 0 serial or 4 SYM transceiver. Check the link beat bit. */
int offset = mleaf->type == 4 ? 5 : 2 ;
s8 bitnum = p[offset];
if (p[offset+1 ] & 0 x80) {
if (tulip_debug > 1 )
netdev_dbg(dev, "Transceiver monitor tick CSR12=%#02x, no media sense\n" ,
csr12);
if (mleaf->type == 4 ) {
if (mleaf->media == 3 && (csr12 & 0 x02))
goto select_next_media;
}
break ;
}
if (tulip_debug > 2 )
netdev_dbg(dev, "Transceiver monitor tick: CSR12=%#02x bit %d is %d, expecting %d\n" ,
csr12, (bitnum >> 1 ) & 7 ,
(csr12 & (1 << ((bitnum >> 1 ) & 7 ))) != 0 ,
(bitnum >= 0 ));
/* Check that the specified bit has the proper value. */
if ((bitnum < 0 ) !=
((csr12 & (1 << ((bitnum >> 1 ) & 7 ))) != 0 )) {
if (tulip_debug > 2 )
netdev_dbg(dev, "Link beat detected for %s\n" ,
medianame[mleaf->media & MEDIA_MASK]);
if ((p[2 ] & 0 x61) == 0 x01) /* Bogus Znyx board. */
goto actually_mii;
netif_carrier_on(dev);
break ;
}
netif_carrier_off(dev);
if (tp->medialock)
break ;
select_next_media:
if (--tp->cur_index < 0 ) {
/* We start again, but should instead look for default. */
tp->cur_index = tp->mtable->leafcount - 1 ;
}
dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
if (tulip_media_cap[dev->if_port] & MediaIsFD)
goto select_next_media; /* Skip FD entries. */
if (tulip_debug > 1 )
netdev_dbg(dev, "No link beat on media %s, trying transceiver type %s\n" ,
medianame[mleaf->media & MEDIA_MASK],
medianame[tp->mtable->mleaf[tp->cur_index].media]);
tulip_select_media(dev, 0 );
/* Restart the transmit process. */
tulip_restart_rxtx(tp);
next_tick = (24 *HZ)/10 ;
break ;
}
case 1 : case 3 : /* 21140, 21142 MII */
actually_mii:
if (tulip_check_duplex(dev) < 0 ) {
netif_carrier_off(dev);
next_tick = 3 *HZ;
} else {
netif_carrier_on(dev);
next_tick = 60 *HZ;
}
break ;
case 2 : /* 21142 serial block has no link beat. */
default :
break ;
}
}
break ;
}
spin_lock_irqsave(&tp->lock, flags);
if (tp->timeout_recovery) {
tulip_tx_timeout_complete(tp, ioaddr);
tp->timeout_recovery = 0 ;
}
spin_unlock_irqrestore(&tp->lock, flags);
/* mod_timer synchronizes us with potential add_timer calls
* from interrupts .
*/
mod_timer(&tp->timer, RUN_AT(next_tick));
}
void mxic_timer(struct timer_list *t)
{
struct tulip_private *tp = timer_container_of(tp, t, timer);
struct net_device *dev = tp->dev;
void __iomem *ioaddr = tp->base_addr;
int next_tick = 60 *HZ;
if (tulip_debug > 3 ) {
dev_info(&dev->dev, "MXIC negotiation status %08x\n" ,
ioread32(ioaddr + CSR12));
}
if (next_tick) {
mod_timer(&tp->timer, RUN_AT(next_tick));
}
}
void comet_timer(struct timer_list *t)
{
struct tulip_private *tp = timer_container_of(tp, t, timer);
struct net_device *dev = tp->dev;
int next_tick = 2 *HZ;
if (tulip_debug > 1 )
netdev_dbg(dev, "Comet link status %04x partner capability %04x\n" ,
tulip_mdio_read(dev, tp->phys[0 ], 1 ),
tulip_mdio_read(dev, tp->phys[0 ], 5 ));
/* mod_timer synchronizes us with potential add_timer calls
* from interrupts .
*/
if (tulip_check_duplex(dev) < 0 )
{ netif_carrier_off(dev); }
else
{ netif_carrier_on(dev); }
mod_timer(&tp->timer, RUN_AT(next_tick));
}
Messung V0.5 in Prozent C=93 H=92 G=92
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-04)
¤
*© Formatika GbR, Deutschland