Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
175
drivers/net/tulip/timer.c
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175
drivers/net/tulip/timer.c
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/*
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drivers/net/tulip/timer.c
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Maintained by Jeff Garzik <jgarzik@pobox.com>
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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 refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
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for more information on this driver, or visit the project
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Web page at http://sourceforge.net/projects/tulip/
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*/
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#include <linux/pci.h>
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#include "tulip.h"
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void tulip_timer(unsigned long data)
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{
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struct net_device *dev = (struct net_device *)data;
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struct tulip_private *tp = netdev_priv(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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if (tulip_debug > 2) {
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printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode"
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" %8.8x SIA %8.8x %8.8x %8.8x %8.8x.\n",
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dev->name, medianame[dev->if_port], ioread32(ioaddr + CSR5),
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ioread32(ioaddr + CSR6), 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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case ULI526X:
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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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printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
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"CSR12 0x%2.2x.\n",
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dev->name, ioread32(ioaddr + CSR6), 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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printk(KERN_DEBUG"%s: Transceiver monitor tick "
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"CSR12=%#2.2x, no media sense.\n",
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dev->name, 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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printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
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" bit %d is %d, expecting %d.\n",
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dev->name, 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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printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
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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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printk(KERN_DEBUG "%s: No link beat on media %s,"
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" trying transceiver type %s.\n",
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dev->name, 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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/* 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(unsigned long data)
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{
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struct net_device *dev = (struct net_device *)data;
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struct tulip_private *tp = netdev_priv(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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printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
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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(unsigned long data)
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{
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struct net_device *dev = (struct net_device *)data;
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struct tulip_private *tp = netdev_priv(dev);
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int next_tick = 60*HZ;
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if (tulip_debug > 1)
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printk(KERN_DEBUG "%s: Comet link status %4.4x partner capability "
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"%4.4x.\n",
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dev->name,
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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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