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Diffstat (limited to 'drivers/net/tulip/timer.c')
-rw-r--r--drivers/net/tulip/timer.c208
1 files changed, 208 insertions, 0 deletions
diff --git a/drivers/net/tulip/timer.c b/drivers/net/tulip/timer.c
new file mode 100644
index 000000000..796fdd136
--- /dev/null
+++ b/drivers/net/tulip/timer.c
@@ -0,0 +1,208 @@
+/*
+ drivers/net/tulip/timer.c
+
+ Maintained by Jeff Garzik <jgarzik@mandrakesoft.com>
+ Copyright 2000 The Linux Kernel Team
+ Written/copyright 1994-1999 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU Public License, incorporated herein by reference.
+
+ Please refer to Documentation/networking/tulip.txt for more
+ information on this driver.
+
+*/
+
+#include "tulip.h"
+#include <asm/io.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: 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 > 1)
+ printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
+ medianame[mleaf->media]);
+ if ((p[2] & 0x61) == 0x01) /* Bogus Znyx board. */
+ goto actually_mii;
+ break;
+ }
+ 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 & 15],
+ medianame[tp->mtable->mleaf[tp->cur_index].media]);
+ tulip_select_media(dev, 0);
+ /* Restart the transmit process. */
+ tulip_outl_CSR6(tp, tp->csr6 | 0x0002);
+ tulip_outl_CSR6(tp, tp->csr6 | 0x2002);
+ next_tick = (24*HZ)/10;
+ break;
+ }
+ case 1: case 3: /* 21140, 21142 MII */
+ actually_mii:
+ tulip_check_duplex(dev);
+ next_tick = 60*HZ;
+ break;
+ case 2: /* 21142 serial block has no link beat. */
+ default:
+ break;
+ }
+ }
+ break;
+ }
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+}
+
+
+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) {
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+ }
+}
+
+
+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, inl(ioaddr + 0xB8), inl(ioaddr + 0xC8));
+ tp->timer.expires = RUN_AT(next_tick);
+ add_timer(&tp->timer);
+}
+
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