| /* |
| drivers/net/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 refer to Documentation/DocBook/tulip-user.{pdf,ps,html} |
| for more information on this driver. |
| |
| 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(unsigned long data) |
| { |
| struct net_device *dev = (struct net_device *)data; |
| struct tulip_private *tp = netdev_priv(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(unsigned long data) |
| { |
| struct net_device *dev = (struct net_device *)data; |
| struct tulip_private *tp = netdev_priv(dev); |
| int next_tick = 60*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)); |
| } |
| |