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1/*2 drivers/net/ethernet/dec/tulip/timer.c3 4 Copyright 2000,2001 The Linux Kernel Team5 Written/copyright 1994-2001 by Donald Becker.6 7 This software may be used and distributed according to the terms8 of the GNU General Public License, incorporated herein by reference.9 10 Please submit bugs to http://bugzilla.kernel.org/ .11*/12 13 14#include "tulip.h"15 16 17void tulip_media_task(struct work_struct *work)18{19 struct tulip_private *tp =20 container_of(work, struct tulip_private, media_work);21 struct net_device *dev = tp->dev;22 void __iomem *ioaddr = tp->base_addr;23 u32 csr12 = ioread32(ioaddr + CSR12);24 int next_tick = 2*HZ;25 unsigned long flags;26 27 if (tulip_debug > 2) {28 netdev_dbg(dev, "Media selection tick, %s, status %08x mode %08x SIA %08x %08x %08x %08x\n",29 medianame[dev->if_port],30 ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR6),31 csr12, ioread32(ioaddr + CSR13),32 ioread32(ioaddr + CSR14), ioread32(ioaddr + CSR15));33 }34 switch (tp->chip_id) {35 case DC21140:36 case DC21142:37 case MX98713:38 case COMPEX9881:39 case DM910X:40 default: {41 struct medialeaf *mleaf;42 unsigned char *p;43 if (tp->mtable == NULL) { /* No EEPROM info, use generic code. */44 /* Not much that can be done.45 Assume this a generic MII or SYM transceiver. */46 next_tick = 60*HZ;47 if (tulip_debug > 2)48 netdev_dbg(dev, "network media monitor CSR6 %08x CSR12 0x%02x\n",49 ioread32(ioaddr + CSR6),50 csr12 & 0xff);51 break;52 }53 mleaf = &tp->mtable->mleaf[tp->cur_index];54 p = mleaf->leafdata;55 switch (mleaf->type) {56 case 0: case 4: {57 /* Type 0 serial or 4 SYM transceiver. Check the link beat bit. */58 int offset = mleaf->type == 4 ? 5 : 2;59 s8 bitnum = p[offset];60 if (p[offset+1] & 0x80) {61 if (tulip_debug > 1)62 netdev_dbg(dev, "Transceiver monitor tick CSR12=%#02x, no media sense\n",63 csr12);64 if (mleaf->type == 4) {65 if (mleaf->media == 3 && (csr12 & 0x02))66 goto select_next_media;67 }68 break;69 }70 if (tulip_debug > 2)71 netdev_dbg(dev, "Transceiver monitor tick: CSR12=%#02x bit %d is %d, expecting %d\n",72 csr12, (bitnum >> 1) & 7,73 (csr12 & (1 << ((bitnum >> 1) & 7))) != 0,74 (bitnum >= 0));75 /* Check that the specified bit has the proper value. */76 if ((bitnum < 0) !=77 ((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {78 if (tulip_debug > 2)79 netdev_dbg(dev, "Link beat detected for %s\n",80 medianame[mleaf->media & MEDIA_MASK]);81 if ((p[2] & 0x61) == 0x01) /* Bogus Znyx board. */82 goto actually_mii;83 netif_carrier_on(dev);84 break;85 }86 netif_carrier_off(dev);87 if (tp->medialock)88 break;89 select_next_media:90 if (--tp->cur_index < 0) {91 /* We start again, but should instead look for default. */92 tp->cur_index = tp->mtable->leafcount - 1;93 }94 dev->if_port = tp->mtable->mleaf[tp->cur_index].media;95 if (tulip_media_cap[dev->if_port] & MediaIsFD)96 goto select_next_media; /* Skip FD entries. */97 if (tulip_debug > 1)98 netdev_dbg(dev, "No link beat on media %s, trying transceiver type %s\n",99 medianame[mleaf->media & MEDIA_MASK],100 medianame[tp->mtable->mleaf[tp->cur_index].media]);101 tulip_select_media(dev, 0);102 /* Restart the transmit process. */103 tulip_restart_rxtx(tp);104 next_tick = (24*HZ)/10;105 break;106 }107 case 1: case 3: /* 21140, 21142 MII */108 actually_mii:109 if (tulip_check_duplex(dev) < 0) {110 netif_carrier_off(dev);111 next_tick = 3*HZ;112 } else {113 netif_carrier_on(dev);114 next_tick = 60*HZ;115 }116 break;117 case 2: /* 21142 serial block has no link beat. */118 default:119 break;120 }121 }122 break;123 }124 125 126 spin_lock_irqsave(&tp->lock, flags);127 if (tp->timeout_recovery) {128 tulip_tx_timeout_complete(tp, ioaddr);129 tp->timeout_recovery = 0;130 }131 spin_unlock_irqrestore(&tp->lock, flags);132 133 /* mod_timer synchronizes us with potential add_timer calls134 * from interrupts.135 */136 mod_timer(&tp->timer, RUN_AT(next_tick));137}138 139 140void mxic_timer(struct timer_list *t)141{142 struct tulip_private *tp = from_timer(tp, t, timer);143 struct net_device *dev = tp->dev;144 void __iomem *ioaddr = tp->base_addr;145 int next_tick = 60*HZ;146 147 if (tulip_debug > 3) {148 dev_info(&dev->dev, "MXIC negotiation status %08x\n",149 ioread32(ioaddr + CSR12));150 }151 if (next_tick) {152 mod_timer(&tp->timer, RUN_AT(next_tick));153 }154}155 156 157void comet_timer(struct timer_list *t)158{159 struct tulip_private *tp = from_timer(tp, t, timer);160 struct net_device *dev = tp->dev;161 int next_tick = 2*HZ;162 163 if (tulip_debug > 1)164 netdev_dbg(dev, "Comet link status %04x partner capability %04x\n",165 tulip_mdio_read(dev, tp->phys[0], 1),166 tulip_mdio_read(dev, tp->phys[0], 5));167 /* mod_timer synchronizes us with potential add_timer calls168 * from interrupts.169 */170 if (tulip_check_duplex(dev) < 0)171 { netif_carrier_off(dev); }172 else173 { netif_carrier_on(dev); }174 mod_timer(&tp->timer, RUN_AT(next_tick));175}176 177