Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 245 insertions, 0 deletions

diff --git a/drivers/net/tulip/21142.c b/drivers/net/tulip/21142.c
new file mode 100644
index 000000000000..5db694c4eb02
--- /dev/null
+++ b/drivers/net/tulip/21142.c
@@ -0,0 +1,245 @@
+/*
+        drivers/net/tulip/21142.c
+
+        Maintained by Jeff Garzik <jgarzik@pobox.com>
+        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-user.{pdf,ps,html}
+        for more information on this driver, or visit the project
+        Web page at http://sourceforge.net/projects/tulip/
+
+*/
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include "tulip.h"
+
+
+static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
+u16 t21142_csr14[] =        { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
+static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
+
+
+/* Handle the 21143 uniquely: do autoselect with NWay, not the EEPROM list
+   of available transceivers.  */
+void t21142_timer(unsigned long data)
+{
+        struct net_device *dev = (struct net_device *)data;
+        struct tulip_private *tp = netdev_priv(dev);
+        void __iomem *ioaddr = tp->base_addr;
+        int csr12 = ioread32(ioaddr + CSR12);
+        int next_tick = 60*HZ;
+        int new_csr6 = 0;
+
+        if (tulip_debug > 2)
+                printk(KERN_INFO"%s: 21143 negotiation status %8.8x, %s.\n",
+                           dev->name, csr12, medianame[dev->if_port]);
+        if (tulip_media_cap[dev->if_port] & MediaIsMII) {
+                if (tulip_check_duplex(dev) < 0) {
+                        netif_carrier_off(dev);
+                        next_tick = 3*HZ;
+                } else {
+                        netif_carrier_on(dev);
+                        next_tick = 60*HZ;
+                }
+        } else if (tp->nwayset) {
+                /* Don't screw up a negotiated session! */
+                if (tulip_debug > 1)
+                        printk(KERN_INFO"%s: Using NWay-set %s media, csr12 %8.8x.\n",
+                                   dev->name, medianame[dev->if_port], csr12);
+        } else if (tp->medialock) {
+                        ;
+        } else if (dev->if_port == 3) {
+                if (csr12 & 2) {        /* No 100mbps link beat, revert to 10mbps. */
+                        if (tulip_debug > 1)
+                                printk(KERN_INFO"%s: No 21143 100baseTx link beat, %8.8x, "
+                                           "trying NWay.\n", dev->name, csr12);
+                        t21142_start_nway(dev);
+                        next_tick = 3*HZ;
+                }
+        } else if ((csr12 & 0x7000) != 0x5000) {
+                /* Negotiation failed.  Search media types. */
+                if (tulip_debug > 1)
+                        printk(KERN_INFO"%s: 21143 negotiation failed, status %8.8x.\n",
+                                   dev->name, csr12);
+                if (!(csr12 & 4)) {             /* 10mbps link beat good. */
+                        new_csr6 = 0x82420000;
+                        dev->if_port = 0;
+                        iowrite32(0, ioaddr + CSR13);
+                        iowrite32(0x0003FFFF, ioaddr + CSR14);
+                        iowrite16(t21142_csr15[dev->if_port], ioaddr + CSR15);
+                        iowrite32(t21142_csr13[dev->if_port], ioaddr + CSR13);
+                } else {
+                        /* Select 100mbps port to check for link beat. */
+                        new_csr6 = 0x83860000;
+                        dev->if_port = 3;
+                        iowrite32(0, ioaddr + CSR13);
+                        iowrite32(0x0003FF7F, ioaddr + CSR14);
+                        iowrite16(8, ioaddr + CSR15);
+                        iowrite32(1, ioaddr + CSR13);
+                }
+                if (tulip_debug > 1)
+                        printk(KERN_INFO"%s: Testing new 21143 media %s.\n",
+                                   dev->name, medianame[dev->if_port]);
+                if (new_csr6 != (tp->csr6 & ~0x00D5)) {
+                        tp->csr6 &= 0x00D5;
+                        tp->csr6 |= new_csr6;
+                        iowrite32(0x0301, ioaddr + CSR12);
+                        tulip_restart_rxtx(tp);
+                }
+                next_tick = 3*HZ;
+        }
+
+        /* mod_timer synchronizes us with potential add_timer calls
+         * from interrupts.
+         */
+        mod_timer(&tp->timer, RUN_AT(next_tick));
+}
+
+
+void t21142_start_nway(struct net_device *dev)
+{
+        struct tulip_private *tp = netdev_priv(dev);
+        void __iomem *ioaddr = tp->base_addr;
+        int csr14 = ((tp->sym_advertise & 0x0780) << 9)  |
+                ((tp->sym_advertise & 0x0020) << 1) | 0xffbf;
+
+        dev->if_port = 0;
+        tp->nway = tp->mediasense = 1;
+        tp->nwayset = tp->lpar = 0;
+        if (tulip_debug > 1)
+                printk(KERN_DEBUG "%s: Restarting 21143 autonegotiation, csr14=%8.8x.\n",
+                           dev->name, csr14);
+        iowrite32(0x0001, ioaddr + CSR13);
+        udelay(100);
+        iowrite32(csr14, ioaddr + CSR14);
+        tp->csr6 = 0x82420000 | (tp->sym_advertise & 0x0040 ? FullDuplex : 0);
+        iowrite32(tp->csr6, ioaddr + CSR6);
+        if (tp->mtable  &&  tp->mtable->csr15dir) {
+                iowrite32(tp->mtable->csr15dir, ioaddr + CSR15);
+                iowrite32(tp->mtable->csr15val, ioaddr + CSR15);
+        } else
+                iowrite16(0x0008, ioaddr + CSR15);
+        iowrite32(0x1301, ioaddr + CSR12);              /* Trigger NWAY. */
+}
+
+
+
+void t21142_lnk_change(struct net_device *dev, int csr5)
+{
+        struct tulip_private *tp = netdev_priv(dev);
+        void __iomem *ioaddr = tp->base_addr;
+        int csr12 = ioread32(ioaddr + CSR12);
+
+        if (tulip_debug > 1)
+                printk(KERN_INFO"%s: 21143 link status interrupt %8.8x, CSR5 %x, "
+                           "%8.8x.\n", dev->name, csr12, csr5, ioread32(ioaddr + CSR14));
+
+        /* If NWay finished and we have a negotiated partner capability. */
+        if (tp->nway  &&  !tp->nwayset  &&  (csr12 & 0x7000) == 0x5000) {
+                int setup_done = 0;
+                int negotiated = tp->sym_advertise & (csr12 >> 16);
+                tp->lpar = csr12 >> 16;
+                tp->nwayset = 1;
+                if (negotiated & 0x0100)                dev->if_port = 5;
+                else if (negotiated & 0x0080)   dev->if_port = 3;
+                else if (negotiated & 0x0040)   dev->if_port = 4;
+                else if (negotiated & 0x0020)   dev->if_port = 0;
+                else {
+                        tp->nwayset = 0;
+                        if ((csr12 & 2) == 0  &&  (tp->sym_advertise & 0x0180))
+                                dev->if_port = 3;
+                }
+                tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0;
+
+                if (tulip_debug > 1) {
+                        if (tp->nwayset)
+                                printk(KERN_INFO "%s: Switching to %s based on link "
+                                           "negotiation %4.4x & %4.4x = %4.4x.\n",
+                                           dev->name, medianame[dev->if_port], tp->sym_advertise,
+                                           tp->lpar, negotiated);
+                        else
+                                printk(KERN_INFO "%s: Autonegotiation failed, using %s,"
+                                           " link beat status %4.4x.\n",
+                                           dev->name, medianame[dev->if_port], csr12);
+                }
+
+                if (tp->mtable) {
+                        int i;
+                        for (i = 0; i < tp->mtable->leafcount; i++)
+                                if (tp->mtable->mleaf[i].media == dev->if_port) {
+                                        int startup = ! ((tp->chip_id == DC21143 && tp->revision == 65));
+                                        tp->cur_index = i;
+                                        tulip_select_media(dev, startup);
+                                        setup_done = 1;
+                                        break;
+                                }
+                }
+                if ( ! setup_done) {
+                        tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff);
+                        if (tp->full_duplex)
+                                tp->csr6 |= 0x0200;
+                        iowrite32(1, ioaddr + CSR13);
+                }
+#if 0                                                   /* Restart shouldn't be needed. */
+                iowrite32(tp->csr6 | RxOn, ioaddr + CSR6);
+                if (tulip_debug > 2)
+                        printk(KERN_DEBUG "%s:  Restarting Tx and Rx, CSR5 is %8.8x.\n",
+                                   dev->name, ioread32(ioaddr + CSR5));
+#endif
+                tulip_start_rxtx(tp);
+                if (tulip_debug > 2)
+                        printk(KERN_DEBUG "%s:  Setting CSR6 %8.8x/%x CSR12 %8.8x.\n",
+                                   dev->name, tp->csr6, ioread32(ioaddr + CSR6),
+                                   ioread32(ioaddr + CSR12));
+        } else if ((tp->nwayset  &&  (csr5 & 0x08000000)
+                                && (dev->if_port == 3  ||  dev->if_port == 5)
+                                && (csr12 & 2) == 2) ||
+                           (tp->nway && (csr5 & (TPLnkFail)))) {
+                /* Link blew? Maybe restart NWay. */
+                del_timer_sync(&tp->timer);
+                t21142_start_nway(dev);
+                tp->timer.expires = RUN_AT(3*HZ);
+                add_timer(&tp->timer);
+        } else if (dev->if_port == 3  ||  dev->if_port == 5) {
+                if (tulip_debug > 1)
+                        printk(KERN_INFO"%s: 21143 %s link beat %s.\n",
+                                   dev->name, medianame[dev->if_port],
+                                   (csr12 & 2) ? "failed" : "good");
+                if ((csr12 & 2)  &&  ! tp->medialock) {
+                        del_timer_sync(&tp->timer);
+                        t21142_start_nway(dev);
+                        tp->timer.expires = RUN_AT(3*HZ);
+                        add_timer(&tp->timer);
+                } else if (dev->if_port == 5)
+                        iowrite32(ioread32(ioaddr + CSR14) & ~0x080, ioaddr + CSR14);
+        } else if (dev->if_port == 0  ||  dev->if_port == 4) {
+                if ((csr12 & 4) == 0)
+                        printk(KERN_INFO"%s: 21143 10baseT link beat good.\n",
+                                   dev->name);
+        } else if (!(csr12 & 4)) {              /* 10mbps link beat good. */
+                if (tulip_debug)
+                        printk(KERN_INFO"%s: 21143 10mbps sensed media.\n",
+                                   dev->name);
+                dev->if_port = 0;
+        } else if (tp->nwayset) {
+                if (tulip_debug)
+                        printk(KERN_INFO"%s: 21143 using NWay-set %s, csr6 %8.8x.\n",
+                                   dev->name, medianame[dev->if_port], tp->csr6);
+        } else {                /* 100mbps link beat good. */
+                if (tulip_debug)
+                        printk(KERN_INFO"%s: 21143 100baseTx sensed media.\n",
+                                   dev->name);
+                dev->if_port = 3;
+                tp->csr6 = 0x838E0000 | (tp->csr6 & 0x20ff);
+                iowrite32(0x0003FF7F, ioaddr + CSR14);
+                iowrite32(0x0301, ioaddr + CSR12);
+                tulip_restart_rxtx(tp);
+        }
+}
+
+