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