/* drivers/net/tulip/timer.c Maintained by Jeff Garzik 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.{pdf,ps,html} for more information on this driver, or visit the project Web page at http://sourceforge.net/projects/tulip/ */ #include #include "tulip.h" void tulip_timer(unsigned long data) { struct net_device *dev = (struct net_device *)data; struct tulip_private *tp = (struct tulip_private *)dev->priv; long ioaddr = dev->base_addr; u32 csr12 = inl(ioaddr + CSR12); int next_tick = 2*HZ; if (tulip_debug > 2) { printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode" " %8.8x SIA %8.8x %8.8x %8.8x %8.8x.\n", dev->name, medianame[dev->if_port], inl(ioaddr + CSR5), inl(ioaddr + CSR6), csr12, inl(ioaddr + CSR13), inl(ioaddr + CSR14), inl(ioaddr + CSR15)); } switch (tp->chip_id) { case DC21040: if (!tp->medialock && csr12 & 0x0002) { /* Network error */ printk(KERN_INFO "%s: No link beat found.\n", dev->name); dev->if_port = (dev->if_port == 2 ? 0 : 2); tulip_select_media(dev, 0); dev->trans_start = jiffies; } break; case DC21041: if (tulip_debug > 2) printk(KERN_DEBUG "%s: 21041 media tick CSR12 %8.8x.\n", dev->name, csr12); if (tp->medialock) break; switch (dev->if_port) { case 0: case 3: case 4: if (csr12 & 0x0004) { /*LnkFail */ /* 10baseT is dead. Check for activity on alternate port. */ tp->mediasense = 1; if (csr12 & 0x0200) dev->if_port = 2; else dev->if_port = 1; printk(KERN_INFO "%s: No 21041 10baseT link beat, Media switched to %s.\n", dev->name, medianame[dev->if_port]); outl(0, ioaddr + CSR13); /* Reset */ outl(t21041_csr14[dev->if_port], ioaddr + CSR14); outl(t21041_csr15[dev->if_port], ioaddr + CSR15); outl(t21041_csr13[dev->if_port], ioaddr + CSR13); next_tick = 10*HZ; /* 2.4 sec. */ } else next_tick = 30*HZ; break; case 1: /* 10base2 */ case 2: /* AUI */ if (csr12 & 0x0100) { next_tick = (30*HZ); /* 30 sec. */ tp->mediasense = 0; } else if ((csr12 & 0x0004) == 0) { printk(KERN_INFO "%s: 21041 media switched to 10baseT.\n", dev->name); dev->if_port = 0; tulip_select_media(dev, 0); next_tick = (24*HZ)/10; /* 2.4 sec. */ } else if (tp->mediasense || (csr12 & 0x0002)) { dev->if_port = 3 - dev->if_port; /* Swap ports. */ tulip_select_media(dev, 0); next_tick = 20*HZ; } else { next_tick = 20*HZ; } break; } break; 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) printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x " "CSR12 0x%2.2x.\n", dev->name, inl(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) printk(KERN_DEBUG"%s: Transceiver monitor tick " "CSR12=%#2.2x, no media sense.\n", dev->name, csr12); if (mleaf->type == 4) { if (mleaf->media == 3 && (csr12 & 0x02)) goto select_next_media; } break; } if (tulip_debug > 2) printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x" " bit %d is %d, expecting %d.\n", dev->name, 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) printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name, 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) printk(KERN_DEBUG "%s: No link beat on media %s," " trying transceiver type %s.\n", dev->name, 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); */ } else { /* netif_carrier_on(dev); */ } next_tick = 60*HZ; break; case 2: /* 21142 serial block has no link beat. */ default: break; } } break; } /* 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 = (struct tulip_private *)dev->priv; long ioaddr = dev->base_addr; int next_tick = 60*HZ; if (tulip_debug > 3) { printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name, inl(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 = (struct tulip_private *)dev->priv; long ioaddr = dev->base_addr; int next_tick = 60*HZ; if (tulip_debug > 1) printk(KERN_DEBUG "%s: Comet link status %4.4x partner capability " "%4.4x.\n", dev->name, 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)); }