/*
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 &
0xff);
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] &
0x80) {
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 &
0x02))
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] &
0x61) ==
0x01)
/* 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));
}