tlan.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:92k
- /*******************************************************************************
- *
- * Linux ThunderLAN Driver
- *
- * tlan.c
- * by James Banks
- *
- * (C) 1997-1998 Caldera, Inc.
- * (C) 1998 James Banks
- * (C) 1999-2001 Torben Mathiasen
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- ** This file is best viewed/edited with columns>=132.
- *
- ** Useful (if not required) reading:
- *
- * Texas Instruments, ThunderLAN Programmer's Guide,
- * TI Literature Number SPWU013A
- * available in PDF format from www.ti.com
- * Level One, LXT901 and LXT970 Data Sheets
- * available in PDF format from www.level1.com
- * National Semiconductor, DP83840A Data Sheet
- * available in PDF format from www.national.com
- * Microchip Technology, 24C01A/02A/04A Data Sheet
- * available in PDF format from www.microchip.com
- *
- * Change History
- *
- * Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses
- * new PCI BIOS interface.
- * Alan Cox <alan@redhat.com>: Fixed the out of memory
- * handling.
- *
- * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer!
- *
- * v1.1 Dec 20, 1999 - Removed linux version checking
- * Patch from Tigran Aivazian.
- * - v1.1 includes Alan's SMP updates.
- * - We still have problems on SMP though,
- * but I'm looking into that.
- *
- * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock.
- * - Removed dependency of HZ being 100.
- * - We now allow higher priority timers to
- * overwrite timers like TLAN_TIMER_ACTIVITY
- * Patch from John Cagle <john.cagle@compaq.com>.
- * - Fixed a few compiler warnings.
- *
- * v1.3 Feb 04, 2000 - Fixed the remaining HZ issues.
- * - Removed call to pci_present().
- * - Removed SA_INTERRUPT flag from irq handler.
- * - Added __init and __initdata to reduce resisdent
- * code size.
- * - Driver now uses module_init/module_exit.
- * - Rewrote init_module and tlan_probe to
- * share a lot more code. We now use tlan_probe
- * with builtin and module driver.
- * - Driver ported to new net API.
- * - tlan.txt has been reworked to reflect current
- * driver (almost)
- * - Other minor stuff
- *
- * v1.4 Feb 10, 2000 - Updated with more changes required after Dave's
- * network cleanup in 2.3.43pre7 (Tigran & myself)
- * - Minor stuff.
- *
- * v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver
- * if no cable/link were present.
- * - Cosmetic changes.
- * - TODO: Port completely to new PCI/DMA API
- * Auto-Neg fallback.
- *
- * v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't
- * tested it though, as the kernel support is currently
- * broken (2.3.99p4p3).
- * - Updated tlan.txt accordingly.
- * - Adjusted minimum/maximum frame length.
- * - There is now a TLAN website up at
- * http://tlan.kernel.dk
- *
- * v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now
- * reports PHY information when used with Donald
- * Beckers userspace MII diagnostics utility.
- *
- * v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings.
- * - Added link information to Auto-Neg and forced
- * modes. When NIC operates with auto-neg the driver
- * will report Link speed & duplex modes as well as
- * link partner abilities. When forced link is used,
- * the driver will report status of the established
- * link.
- * Please read tlan.txt for additional information.
- * - Removed call to check_region(), and used
- * return value of request_region() instead.
- *
- * v1.8a May 28, 2000 - Minor updates.
- *
- * v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues.
- * - Updated with timer fixes from Andrew Morton.
- * - Fixed module race in TLan_Open.
- * - Added routine to monitor PHY status.
- * - Added activity led support for Proliant devices.
- *
- * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers
- * like the Compaq NetFlex3/E.
- * - Rewrote tlan_probe to better handle multiple
- * bus probes. Probing and device setup is now
- * done through TLan_Probe and TLan_init_one. Actual
- * hardware probe is done with kernel API and
- * TLan_EisaProbe.
- * - Adjusted debug information for probing.
- * - Fixed bug that would cause general debug information
- * to be printed after driver removal.
- * - Added transmit timeout handling.
- * - Fixed OOM return values in tlan_probe.
- * - Fixed possible mem leak in tlan_exit
- * (now tlan_remove_one).
- * - Fixed timer bug in TLan_phyMonitor.
- * - This driver version is alpha quality, please
- * send me any bug issues you may encounter.
- *
- * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was
- * set for EISA cards.
- * - Added support for NetFlex3/E with nibble-rate
- * 10Base-T PHY. This is untestet as I haven't got
- * one of these cards.
- * - Fixed timer being added twice.
- * - Disabled PhyMonitoring by default as this is
- * work in progress. Define MONITOR to enable it.
- * - Now we don't display link info with PHYs that
- * doesn't support it (level1).
- * - Incresed tx_timeout beacuse of auto-neg.
- * - Adjusted timers for forced speeds.
- *
- * v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.)
- *
- * v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues
- * when link can't be established.
- * - Added the bbuf option as a kernel parameter.
- * - Fixed ioaddr probe bug.
- * - Fixed stupid deadlock with MII interrupts.
- * - Added support for speed/duplex selection with
- * multiple nics.
- * - Added partly fix for TX Channel lockup with
- * TLAN v1.0 silicon. This needs to be investigated
- * further.
- *
- * v1.14 Dec 16, 2000 - Added support for servicing multiple frames per.
- * interrupt. Thanks goes to
- * Adam Keys <adam@ti.com>
- * Denis Beaudoin <dbeaudoin@ti.com>
- * for providing the patch.
- * - Fixed auto-neg output when using multiple
- * adapters.
- * - Converted to use new taskq interface.
- *
- * v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.)
- *
- *******************************************************************************/
-
- #include <linux/module.h>
- #include "tlan.h"
- #include <linux/init.h>
- #include <linux/ioport.h>
- #include <linux/pci.h>
- #include <linux/etherdevice.h>
- #include <linux/delay.h>
- #include <linux/spinlock.h>
- #include <linux/mii.h>
- typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 );
- /* For removing EISA devices */
- static struct net_device *TLan_Eisa_Devices;
- static int TLanDevicesInstalled;
- /* Set speed, duplex and aui settings */
- static int aui[MAX_TLAN_BOARDS];
- static int duplex[MAX_TLAN_BOARDS];
- static int speed[MAX_TLAN_BOARDS];
- static int boards_found;
- MODULE_AUTHOR("Maintainer: Torben Mathiasen <torben.mathiasen@compaq.com>");
- MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
- MODULE_LICENSE("GPL");
- MODULE_PARM(aui, "1-" __MODULE_STRING(MAX_TLAN_BOARDS) "i");
- MODULE_PARM(duplex, "1-" __MODULE_STRING(MAX_TLAN_BOARDS) "i");
- MODULE_PARM(speed, "1-" __MODULE_STRING(MAX_TLAN_BOARDS) "i");
- MODULE_PARM(debug, "i");
- MODULE_PARM(bbuf, "i");
- MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
- MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
- MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)");
- MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
- MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)");
- EXPORT_NO_SYMBOLS;
- /* Define this to enable Link beat monitoring */
- #undef MONITOR
- /* Turn on debugging. See linux/Documentation/networking/tlan.txt for details */
- static int debug;
- static int bbuf;
- static u8 *TLanPadBuffer;
- static char TLanSignature[] = "TLAN";
- static const char tlan_banner[] = "ThunderLAN driver v1.14an";
- static int tlan_have_pci;
- static int tlan_have_eisa;
- const char *media[] = {
- "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ",
- "100baseTx-FD", "100baseT4", 0
- };
- int media_map[] = { 0x0020, 0x0040, 0x0080, 0x0100, 0x0200,};
- static struct board {
- const char *deviceLabel;
- u32 flags;
- u16 addrOfs;
- } board_info[] __devinitdata = {
- { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq NetFlex-3/P", TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
- { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq Netelligent Integrated 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 },
- { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
- { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 },
- { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 },
- { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
- { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 },
- { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
- TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
- { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
- };
- static struct pci_device_id tlan_pci_tbl[] __devinitdata = {
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
- { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
- { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
- { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
- { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
- { 0,}
- };
- MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
- static void TLan_EisaProbe( void );
- static void TLan_Eisa_Cleanup( void );
- static int TLan_Init( struct net_device * );
- static int TLan_Open( struct net_device *dev );
- static int TLan_StartTx( struct sk_buff *, struct net_device *);
- static void TLan_HandleInterrupt( int, void *, struct pt_regs *);
- static int TLan_Close( struct net_device *);
- static struct net_device_stats *TLan_GetStats( struct net_device *);
- static void TLan_SetMulticastList( struct net_device *);
- static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd);
- static int TLan_probe1( struct pci_dev *pdev, long ioaddr, int irq, int rev, const struct pci_device_id *ent);
- static void TLan_tx_timeout( struct net_device *dev);
- static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent);
- static u32 TLan_HandleInvalid( struct net_device *, u16 );
- static u32 TLan_HandleTxEOF( struct net_device *, u16 );
- static u32 TLan_HandleStatOverflow( struct net_device *, u16 );
- static u32 TLan_HandleRxEOF( struct net_device *, u16 );
- static u32 TLan_HandleDummy( struct net_device *, u16 );
- static u32 TLan_HandleTxEOC( struct net_device *, u16 );
- static u32 TLan_HandleStatusCheck( struct net_device *, u16 );
- static u32 TLan_HandleRxEOC( struct net_device *, u16 );
- static void TLan_Timer( unsigned long );
- static void TLan_ResetLists( struct net_device * );
- static void TLan_FreeLists( struct net_device * );
- static void TLan_PrintDio( u16 );
- static void TLan_PrintList( TLanList *, char *, int );
- static void TLan_ReadAndClearStats( struct net_device *, int );
- static void TLan_ResetAdapter( struct net_device * );
- static void TLan_FinishReset( struct net_device * );
- static void TLan_SetMac( struct net_device *, int areg, char *mac );
- static void TLan_PhyPrint( struct net_device * );
- static void TLan_PhyDetect( struct net_device * );
- static void TLan_PhyPowerDown( struct net_device * );
- static void TLan_PhyPowerUp( struct net_device * );
- static void TLan_PhyReset( struct net_device * );
- static void TLan_PhyStartLink( struct net_device * );
- static void TLan_PhyFinishAutoNeg( struct net_device * );
- #ifdef MONITOR
- static void TLan_PhyMonitor( struct net_device * );
- #endif
- /*
- static int TLan_PhyNop( struct net_device * );
- static int TLan_PhyInternalCheck( struct net_device * );
- static int TLan_PhyInternalService( struct net_device * );
- static int TLan_PhyDp83840aCheck( struct net_device * );
- */
- static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * );
- static void TLan_MiiSendData( u16, u32, unsigned );
- static void TLan_MiiSync( u16 );
- static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 );
- static void TLan_EeSendStart( u16 );
- static int TLan_EeSendByte( u16, u8, int );
- static void TLan_EeReceiveByte( u16, u8 *, int );
- static int TLan_EeReadByte( struct net_device *, u8, u8 * );
- static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = {
- TLan_HandleInvalid,
- TLan_HandleTxEOF,
- TLan_HandleStatOverflow,
- TLan_HandleRxEOF,
- TLan_HandleDummy,
- TLan_HandleTxEOC,
- TLan_HandleStatusCheck,
- TLan_HandleRxEOC
- };
- static inline void
- TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type )
- {
- TLanPrivateInfo *priv = dev->priv;
- unsigned long flags = 0;
-
- if (!in_irq())
- spin_lock_irqsave(&priv->lock, flags);
- if ( priv->timer.function != NULL &&
- priv->timerType != TLAN_TIMER_ACTIVITY ) {
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
- priv->timer.function = &TLan_Timer;
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
- priv->timer.data = (unsigned long) dev;
- priv->timerSetAt = jiffies;
- priv->timerType = type;
- mod_timer(&priv->timer, jiffies + ticks);
-
- } /* TLan_SetTimer */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver Primary Functions
- These functions are more or less common to all Linux network drivers.
- ******************************************************************************
- *****************************************************************************/
- /***************************************************************
- * tlan_remove_one
- *
- * Returns:
- * Nothing
- * Parms:
- * None
- *
- * Goes through the TLanDevices list and frees the device
- * structs and memory associated with each device (lists
- * and buffers). It also ureserves the IO port regions
- * associated with this device.
- *
- **************************************************************/
- static void __devexit tlan_remove_one( struct pci_dev *pdev)
- {
- struct net_device *dev = pci_get_drvdata( pdev );
- TLanPrivateInfo *priv = dev->priv;
-
- unregister_netdev( dev );
- if ( priv->dmaStorage ) {
- kfree( priv->dmaStorage );
- }
- release_region( dev->base_addr, 0x10 );
-
- kfree( dev );
-
- pci_set_drvdata( pdev, NULL );
- }
- static struct pci_driver tlan_driver = {
- name: "tlan",
- id_table: tlan_pci_tbl,
- probe: tlan_init_one,
- remove: __devexit_p(tlan_remove_one),
- };
- static int __init tlan_probe(void)
- {
- static int pad_allocated;
-
- printk(KERN_INFO "%s", tlan_banner);
-
- TLanPadBuffer = (u8 *) kmalloc(TLAN_MIN_FRAME_SIZE,
- GFP_KERNEL);
- if (TLanPadBuffer == NULL) {
- printk(KERN_ERR "TLAN: Could not allocate memory for pad buffer.n");
- return -ENOMEM;
- }
- memset(TLanPadBuffer, 0, TLAN_MIN_FRAME_SIZE);
- pad_allocated = 1;
- TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....n");
-
- /* Use new style PCI probing. Now the kernel will
- do most of this for us */
- pci_register_driver(&tlan_driver);
- TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....n");
- TLan_EisaProbe();
-
- printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %dn",
- TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s",
- tlan_have_pci, tlan_have_eisa);
- if (TLanDevicesInstalled == 0) {
- pci_unregister_driver(&tlan_driver);
- kfree(TLanPadBuffer);
- return -ENODEV;
- }
- return 0;
- }
-
- static int __devinit tlan_init_one( struct pci_dev *pdev,
- const struct pci_device_id *ent)
- {
- return TLan_probe1( pdev, -1, -1, 0, ent);
- }
- /*
- ***************************************************************
- * tlan_probe1
- *
- * Returns:
- * 0 on success, error code on error
- * Parms:
- * none
- *
- * The name is lower case to fit in with all the rest of
- * the netcard_probe names. This function looks for
- * another TLan based adapter, setting it up with the
- * allocated device struct if one is found.
- * tlan_probe has been ported to the new net API and
- * now allocates its own device structure. This function
- * is also used by modules.
- *
- **************************************************************/
- static int __devinit TLan_probe1(struct pci_dev *pdev,
- long ioaddr, int irq, int rev, const struct pci_device_id *ent )
- {
- struct net_device *dev;
- TLanPrivateInfo *priv;
- u8 pci_rev;
- u16 device_id;
- int reg;
- if (pdev && pci_enable_device(pdev))
- return -EIO;
- dev = init_etherdev(NULL, sizeof(TLanPrivateInfo));
- if (dev == NULL) {
- printk(KERN_ERR "TLAN: Could not allocate memory for device.n");
- return -ENOMEM;
- }
- SET_MODULE_OWNER(dev);
-
- priv = dev->priv;
- /* Is this a PCI device? */
- if (pdev) {
- u32 pci_io_base = 0;
- priv->adapter = &board_info[ent->driver_data];
- pci_read_config_byte ( pdev, PCI_REVISION_ID, &pci_rev);
- for ( reg= 0; reg <= 5; reg ++ ) {
- if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
- pci_io_base = pci_resource_start(pdev, reg);
- TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.n",
- pci_io_base);
- break;
- }
- }
- if (!pci_io_base) {
- printk(KERN_ERR "TLAN: No IO mappings availablen");
- unregister_netdev(dev);
- kfree(dev);
- return -ENODEV;
- }
-
- dev->base_addr = pci_io_base;
- dev->irq = pdev->irq;
- priv->adapterRev = pci_rev;
- pci_set_master(pdev);
- pci_set_drvdata(pdev, dev);
- } else { /* EISA card */
- /* This is a hack. We need to know which board structure
- * is suited for this adapter */
- device_id = inw(ioaddr + EISA_ID2);
- priv->is_eisa = 1;
- if (device_id == 0x20F1) {
- priv->adapter = &board_info[13]; /* NetFlex-3/E */
- priv->adapterRev = 23; /* TLAN 2.3 */
- } else {
- priv->adapter = &board_info[14];
- priv->adapterRev = 10; /* TLAN 1.0 */
- }
- dev->base_addr = ioaddr;
- dev->irq = irq;
- }
- /* Kernel parameters */
- if (dev->mem_start) {
- priv->aui = dev->mem_start & 0x01;
- priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 : (dev->mem_start & 0x06) >> 1;
- priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 : (dev->mem_start & 0x18) >> 3;
-
- if (priv->speed == 0x1) {
- priv->speed = TLAN_SPEED_10;
- } else if (priv->speed == 0x2) {
- priv->speed = TLAN_SPEED_100;
- }
- debug = priv->debug = dev->mem_end;
- } else {
- priv->aui = aui[boards_found];
- priv->speed = speed[boards_found];
- priv->duplex = duplex[boards_found];
- priv->debug = debug;
- }
-
- /* This will be used when we get an adapter error from
- * within our irq handler */
- INIT_LIST_HEAD(&priv->tlan_tqueue.list);
- priv->tlan_tqueue.sync = 0;
- priv->tlan_tqueue.routine = (void *)(void*)TLan_tx_timeout;
- priv->tlan_tqueue.data = dev;
- spin_lock_init(&priv->lock);
-
- if (TLan_Init(dev)) {
- printk(KERN_ERR "TLAN: Could not register device.n");
- unregister_netdev(dev);
- kfree(dev);
- return -EAGAIN;
- } else {
-
- TLanDevicesInstalled++;
- boards_found++;
-
- /* pdev is NULL if this is an EISA device */
- if (pdev)
- tlan_have_pci++;
- else {
- priv->nextDevice = TLan_Eisa_Devices;
- TLan_Eisa_Devices = dev;
- tlan_have_eisa++;
- }
-
- printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %dn",
- dev->name,
- (int) dev->irq,
- (int) dev->base_addr,
- priv->adapter->deviceLabel,
- priv->adapterRev);
- return 0;
- }
- }
- static void TLan_Eisa_Cleanup(void)
- {
- struct net_device *dev;
- TLanPrivateInfo *priv;
-
- while( tlan_have_eisa ) {
- dev = TLan_Eisa_Devices;
- priv = dev->priv;
- if (priv->dmaStorage) {
- kfree(priv->dmaStorage);
- }
- release_region( dev->base_addr, 0x10);
- unregister_netdev( dev );
- TLan_Eisa_Devices = priv->nextDevice;
- kfree( dev );
- tlan_have_eisa--;
- }
- }
-
-
- static void __exit tlan_exit(void)
- {
- pci_unregister_driver(&tlan_driver);
- if (tlan_have_eisa)
- TLan_Eisa_Cleanup();
- kfree( TLanPadBuffer );
- }
- /* Module loading/unloading */
- module_init(tlan_probe);
- module_exit(tlan_exit);
- /**************************************************************
- * TLan_EisaProbe
- *
- * Returns: 0 on success, 1 otherwise
- *
- * Parms: None
- *
- *
- * This functions probes for EISA devices and calls
- * TLan_probe1 when one is found.
- *
- *************************************************************/
- static void __init TLan_EisaProbe (void)
- {
- long ioaddr;
- int rc = -ENODEV;
- int irq;
- u16 device_id;
- if (!EISA_bus) {
- TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus presentn");
- return;
- }
-
- /* Loop through all slots of the EISA bus */
- for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
-
- TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4xn", (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID));
- TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4xn", (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2));
- TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ",
- (int) ioaddr);
- if (request_region(ioaddr, 0x10, TLanSignature) == NULL)
- goto out;
- if (inw(ioaddr + EISA_ID) != 0x110E) {
- release_region(ioaddr, 0x10);
- goto out;
- }
-
- device_id = inw(ioaddr + EISA_ID2);
- if (device_id != 0x20F1 && device_id != 0x40F1) {
- release_region (ioaddr, 0x10);
- goto out;
- }
-
- if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */
- release_region (ioaddr, 0x10);
- goto out2;
- }
-
- if (debug == 0x10)
- printk("Found onen");
- /* Get irq from board */
- switch (inb(ioaddr + 0xCC0)) {
- case(0x10):
- irq=5;
- break;
- case(0x20):
- irq=9;
- break;
- case(0x40):
- irq=10;
- break;
- case(0x80):
- irq=11;
- break;
- default:
- goto out;
- }
-
-
- /* Setup the newly found eisa adapter */
- rc = TLan_probe1( NULL, ioaddr, irq,
- 12, NULL);
- continue;
-
- out:
- if (debug == 0x10)
- printk("None foundn");
- continue;
- out2: if (debug == 0x10)
- printk("Card found but it is not enabled, skippingn");
- continue;
-
- }
- } /* TLan_EisaProbe */
-
- /***************************************************************
- * TLan_Init
- *
- * Returns:
- * 0 on success, error code otherwise.
- * Parms:
- * dev The structure of the device to be
- * init'ed.
- *
- * This function completes the initialization of the
- * device structure and driver. It reserves the IO
- * addresses, allocates memory for the lists and bounce
- * buffers, retrieves the MAC address from the eeprom
- * and assignes the device's methods.
- *
- **************************************************************/
- static int TLan_Init( struct net_device *dev )
- {
- int dma_size;
- int err;
- int i;
- TLanPrivateInfo *priv;
- priv = dev->priv;
-
- if (!priv->is_eisa) /* EISA devices have already requested IO */
- if (!request_region( dev->base_addr, 0x10, TLanSignature )) {
- printk(KERN_ERR "TLAN: %s: IO port region 0x%lx size 0x%x in use.n",
- dev->name,
- dev->base_addr,
- 0x10 );
- return -EIO;
- }
-
- if ( bbuf ) {
- dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
- * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE );
- } else {
- dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
- * ( sizeof(TLanList) );
- }
- priv->dmaStorage = kmalloc(dma_size, GFP_KERNEL | GFP_DMA);
- if ( priv->dmaStorage == NULL ) {
- printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.n",
- dev->name );
- release_region( dev->base_addr, 0x10 );
- return -ENOMEM;
- }
- memset( priv->dmaStorage, 0, dma_size );
- priv->rxList = (TLanList *)
- ( ( ( (u32) priv->dmaStorage ) + 7 ) & 0xFFFFFFF8 );
- priv->txList = priv->rxList + TLAN_NUM_RX_LISTS;
- if ( bbuf ) {
- priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS );
- priv->txBuffer = priv->rxBuffer
- + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
- }
- err = 0;
- for ( i = 0; i < 6 ; i++ )
- err |= TLan_EeReadByte( dev,
- (u8) priv->adapter->addrOfs + i,
- (u8 *) &dev->dev_addr[i] );
- if ( err ) {
- printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %dn",
- dev->name,
- err );
- }
- dev->addr_len = 6;
-
- /* Device methods */
- dev->open = &TLan_Open;
- dev->hard_start_xmit = &TLan_StartTx;
- dev->stop = &TLan_Close;
- dev->get_stats = &TLan_GetStats;
- dev->set_multicast_list = &TLan_SetMulticastList;
- dev->do_ioctl = &TLan_ioctl;
- dev->tx_timeout = &TLan_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
- return 0;
- } /* TLan_Init */
- /***************************************************************
- * TLan_Open
- *
- * Returns:
- * 0 on success, error code otherwise.
- * Parms:
- * dev Structure of device to be opened.
- *
- * This routine puts the driver and TLAN adapter in a
- * state where it is ready to send and receive packets.
- * It allocates the IRQ, resets and brings the adapter
- * out of reset, and allows interrupts. It also delays
- * the startup for autonegotiation or sends a Rx GO
- * command to the adapter, as appropriate.
- *
- **************************************************************/
- static int TLan_Open( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- int err;
-
- priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION );
- err = request_irq( dev->irq, TLan_HandleInterrupt, SA_SHIRQ, TLanSignature, dev );
-
- if ( err ) {
- printk(KERN_ERR "TLAN: Cannot open %s because IRQ %d is already in use.n", dev->name, dev->irq );
- return err;
- }
-
- init_timer(&priv->timer);
- netif_start_queue(dev);
-
- /* NOTE: It might not be necessary to read the stats before a
- reset if you don't care what the values are.
- */
- TLan_ResetLists( dev );
- TLan_ReadAndClearStats( dev, TLAN_IGNORE );
- TLan_ResetAdapter( dev );
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %xn", dev->name, priv->tlanRev );
- return 0;
- } /* TLan_Open */
- /**************************************************************
- * TLan_ioctl
- *
- * Returns:
- * 0 on success, error code otherwise
- * Params:
- * dev structure of device to receive ioctl.
- *
- * rq ifreq structure to hold userspace data.
- *
- * cmd ioctl command.
- *
- *
- *************************************************************/
- static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
- {
- TLanPrivateInfo *priv = dev->priv;
- struct mii_ioctl_data *data = (struct mii_ioctl_data *)&rq->ifr_data;
- u32 phy = priv->phy[priv->phyNum];
-
- if (!priv->phyOnline)
- return -EAGAIN;
- switch(cmd) {
- case SIOCGMIIPHY: /* Get address of MII PHY in use. */
- case SIOCDEVPRIVATE: /* for binary compat, remove in 2.5 */
- data->phy_id = phy;
- case SIOCGMIIREG: /* Read MII PHY register. */
- case SIOCDEVPRIVATE+1: /* for binary compat, remove in 2.5 */
- TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out);
- return 0;
-
- case SIOCSMIIREG: /* Write MII PHY register. */
- case SIOCDEVPRIVATE+2: /* for binary compat, remove in 2.5 */
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- TLan_MiiWriteReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
- return 0;
- default:
- return -EOPNOTSUPP;
- }
- } /* tlan_ioctl */
- /***************************************************************
- * TLan_tx_timeout
- *
- * Returns: nothing
- *
- * Params:
- * dev structure of device which timed out
- * during transmit.
- *
- **************************************************************/
- static void TLan_tx_timeout(struct net_device *dev)
- {
-
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.n", dev->name);
-
- /* Ok so we timed out, lets see what we can do about it...*/
- TLan_FreeLists( dev );
- TLan_ResetLists( dev );
- TLan_ReadAndClearStats( dev, TLAN_IGNORE );
- TLan_ResetAdapter( dev );
- dev->trans_start = jiffies;
- netif_wake_queue( dev );
- }
-
- /***************************************************************
- * TLan_StartTx
- *
- * Returns:
- * 0 on success, non-zero on failure.
- * Parms:
- * skb A pointer to the sk_buff containing the
- * frame to be sent.
- * dev The device to send the data on.
- *
- * This function adds a frame to the Tx list to be sent
- * ASAP. First it verifies that the adapter is ready and
- * there is room in the queue. Then it sets up the next
- * available list, copies the frame to the corresponding
- * buffer. If the adapter Tx channel is idle, it gives
- * the adapter a Tx Go command on the list, otherwise it
- * sets the forward address of the previous list to point
- * to this one. Then it frees the sk_buff.
- *
- **************************************************************/
- static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- TLanList *tail_list;
- u8 *tail_buffer;
- int pad;
- unsigned long flags;
- if ( ! priv->phyOnline ) {
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not readyn", dev->name );
- dev_kfree_skb_any(skb);
- return 0;
- }
- tail_list = priv->txList + priv->txTail;
-
- if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) {
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s is busy (Head=%d Tail=%d)n", dev->name, priv->txHead, priv->txTail );
- netif_stop_queue(dev);
- priv->txBusyCount++;
- return 1;
- }
- tail_list->forward = 0;
- if ( bbuf ) {
- tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE );
- memcpy( tail_buffer, skb->data, skb->len );
- } else {
- tail_list->buffer[0].address = virt_to_bus( skb->data );
- tail_list->buffer[9].address = (u32) skb;
- }
- pad = TLAN_MIN_FRAME_SIZE - skb->len;
- if ( pad > 0 ) {
- tail_list->frameSize = (u16) skb->len + pad;
- tail_list->buffer[0].count = (u32) skb->len;
- tail_list->buffer[1].count = TLAN_LAST_BUFFER | (u32) pad;
- tail_list->buffer[1].address = virt_to_bus( TLanPadBuffer );
- } else {
- tail_list->frameSize = (u16) skb->len;
- tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len;
- tail_list->buffer[1].count = 0;
- tail_list->buffer[1].address = 0;
- }
- spin_lock_irqsave(&priv->lock, flags);
- tail_list->cStat = TLAN_CSTAT_READY;
- if ( ! priv->txInProgress ) {
- priv->txInProgress = 1;
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Starting TX on buffer %dn", priv->txTail );
- outl( virt_to_bus( tail_list ), dev->base_addr + TLAN_CH_PARM );
- outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD );
- } else {
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channeln", priv->txTail );
- if ( priv->txTail == 0 ) {
- ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = virt_to_bus( tail_list );
- } else {
- ( priv->txList + ( priv->txTail - 1 ) )->forward = virt_to_bus( tail_list );
- }
- }
- spin_unlock_irqrestore(&priv->lock, flags);
- CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS );
- if ( bbuf )
- dev_kfree_skb_any(skb);
-
- dev->trans_start = jiffies;
- return 0;
- } /* TLan_StartTx */
- /***************************************************************
- * TLan_HandleInterrupt
- *
- * Returns:
- * Nothing
- * Parms:
- * irq The line on which the interrupt
- * occurred.
- * dev_id A pointer to the device assigned to
- * this irq line.
- * regs ???
- *
- * This function handles an interrupt generated by its
- * assigned TLAN adapter. The function deactivates
- * interrupts on its adapter, records the type of
- * interrupt, executes the appropriate subhandler, and
- * acknowdges the interrupt to the adapter (thus
- * re-enabling adapter interrupts.
- *
- **************************************************************/
- static void TLan_HandleInterrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
- u32 ack;
- struct net_device *dev;
- u32 host_cmd;
- u16 host_int;
- int type;
- TLanPrivateInfo *priv;
- dev = dev_id;
- priv = dev->priv;
- spin_lock(&priv->lock);
- host_int = inw( dev->base_addr + TLAN_HOST_INT );
- outw( host_int, dev->base_addr + TLAN_HOST_INT );
- type = ( host_int & TLAN_HI_IT_MASK ) >> 2;
- ack = TLanIntVector[type]( dev, host_int );
- if ( ack ) {
- host_cmd = TLAN_HC_ACK | ack | ( type << 18 );
- outl( host_cmd, dev->base_addr + TLAN_HOST_CMD );
- }
- spin_unlock(&priv->lock);
- } /* TLan_HandleInterrupts */
- /***************************************************************
- * TLan_Close
- *
- * Returns:
- * An error code.
- * Parms:
- * dev The device structure of the device to
- * close.
- *
- * This function shuts down the adapter. It records any
- * stats, puts the adapter into reset state, deactivates
- * its time as needed, and frees the irq it is using.
- *
- **************************************************************/
- static int TLan_Close(struct net_device *dev)
- {
- TLanPrivateInfo *priv = dev->priv;
- netif_stop_queue(dev);
- priv->neg_be_verbose = 0;
- TLan_ReadAndClearStats( dev, TLAN_RECORD );
- outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
- if ( priv->timer.function != NULL ) {
- del_timer_sync( &priv->timer );
- priv->timer.function = NULL;
- }
-
- free_irq( dev->irq, dev );
- TLan_FreeLists( dev );
- TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.n", dev->name );
- return 0;
- } /* TLan_Close */
- /***************************************************************
- * TLan_GetStats
- *
- * Returns:
- * A pointer to the device's statistics structure.
- * Parms:
- * dev The device structure to return the
- * stats for.
- *
- * This function updates the devices statistics by reading
- * the TLAN chip's onboard registers. Then it returns the
- * address of the statistics structure.
- *
- **************************************************************/
- static struct net_device_stats *TLan_GetStats( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- int i;
- /* Should only read stats if open ? */
- TLan_ReadAndClearStats( dev, TLAN_RECORD );
- TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %dn", dev->name, priv->rxEocCount );
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %dn", dev->name, priv->txBusyCount );
- if ( debug & TLAN_DEBUG_GNRL ) {
- TLan_PrintDio( dev->base_addr );
- TLan_PhyPrint( dev );
- }
- if ( debug & TLAN_DEBUG_LIST ) {
- for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ )
- TLan_PrintList( priv->rxList + i, "RX", i );
- for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ )
- TLan_PrintList( priv->txList + i, "TX", i );
- }
-
- return ( &( (TLanPrivateInfo *) dev->priv )->stats );
- } /* TLan_GetStats */
- /***************************************************************
- * TLan_SetMulticastList
- *
- * Returns:
- * Nothing
- * Parms:
- * dev The device structure to set the
- * multicast list for.
- *
- * This function sets the TLAN adaptor to various receive
- * modes. If the IFF_PROMISC flag is set, promiscuous
- * mode is acitviated. Otherwise, promiscuous mode is
- * turned off. If the IFF_ALLMULTI flag is set, then
- * the hash table is set to receive all group addresses.
- * Otherwise, the first three multicast addresses are
- * stored in AREG_1-3, and the rest are selected via the
- * hash table, as necessary.
- *
- **************************************************************/
- static void TLan_SetMulticastList( struct net_device *dev )
- {
- struct dev_mc_list *dmi = dev->mc_list;
- u32 hash1 = 0;
- u32 hash2 = 0;
- int i;
- u32 offset;
- u8 tmp;
- if ( dev->flags & IFF_PROMISC ) {
- tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
- TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF );
- } else {
- tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
- TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF );
- if ( dev->flags & IFF_ALLMULTI ) {
- for ( i = 0; i < 3; i++ )
- TLan_SetMac( dev, i + 1, NULL );
- TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF );
- TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF );
- } else {
- for ( i = 0; i < dev->mc_count; i++ ) {
- if ( i < 3 ) {
- TLan_SetMac( dev, i + 1, (char *) &dmi->dmi_addr );
- } else {
- offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr );
- if ( offset < 32 )
- hash1 |= ( 1 << offset );
- else
- hash2 |= ( 1 << ( offset - 32 ) );
- }
- dmi = dmi->next;
- }
- for ( ; i < 3; i++ )
- TLan_SetMac( dev, i + 1, NULL );
- TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 );
- TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 );
- }
- }
- } /* TLan_SetMulticastList */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver Interrupt Vectors and Table
- Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN
- Programmer's Guide" for more informations on handling interrupts
- generated by TLAN based adapters.
- ******************************************************************************
- *****************************************************************************/
- /***************************************************************
- * TLan_HandleInvalid
- *
- * Returns:
- * 0
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles invalid interrupts. This should
- * never happen unless some other adapter is trying to use
- * the IRQ line assigned to the device.
- *
- **************************************************************/
- u32 TLan_HandleInvalid( struct net_device *dev, u16 host_int )
- {
- /* printk( "TLAN: Invalid interrupt on %s.n", dev->name ); */
- return 0;
- } /* TLan_HandleInvalid */
- /***************************************************************
- * TLan_HandleTxEOF
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles Tx EOF interrupts which are raised
- * by the adapter when it has completed sending the
- * contents of a buffer. If detemines which list/buffer
- * was completed and resets it. If the buffer was the last
- * in the channel (EOC), then the function checks to see if
- * another buffer is ready to send, and if so, sends a Tx
- * Go command. Finally, the driver activates/continues the
- * activity LED.
- *
- **************************************************************/
- u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int )
- {
- TLanPrivateInfo *priv = dev->priv;
- int eoc = 0;
- TLanList *head_list;
- u32 ack = 0;
- u16 tmpCStat;
-
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)n", priv->txHead, priv->txTail );
- head_list = priv->txList + priv->txHead;
- while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
- ack++;
- if ( ! bbuf ) {
- dev_kfree_skb_any( (struct sk_buff *) head_list->buffer[9].address );
- head_list->buffer[9].address = 0;
- }
-
- if ( tmpCStat & TLAN_CSTAT_EOC )
- eoc = 1;
-
- priv->stats.tx_bytes += head_list->frameSize;
- head_list->cStat = TLAN_CSTAT_UNUSED;
- netif_start_queue(dev);
- CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS );
- head_list = priv->txList + priv->txHead;
- }
- if (!ack)
- printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.n");
-
- if ( eoc ) {
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)n", priv->txHead, priv->txTail );
- head_list = priv->txList + priv->txHead;
- if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
- outl( virt_to_bus( head_list ), dev->base_addr + TLAN_CH_PARM );
- ack |= TLAN_HC_GO;
- } else {
- priv->txInProgress = 0;
- }
- }
-
- if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
- TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
- if ( priv->timer.function == NULL ) {
- priv->timer.function = &TLan_Timer;
- priv->timer.data = (unsigned long) dev;
- priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
- priv->timerSetAt = jiffies;
- priv->timerType = TLAN_TIMER_ACTIVITY;
- add_timer(&priv->timer);
- } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
- priv->timerSetAt = jiffies;
- }
- }
- return ack;
- } /* TLan_HandleTxEOF */
- /***************************************************************
- * TLan_HandleStatOverflow
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles the Statistics Overflow interrupt
- * which means that one or more of the TLAN statistics
- * registers has reached 1/2 capacity and needs to be read.
- *
- **************************************************************/
- u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int )
- {
- TLan_ReadAndClearStats( dev, TLAN_RECORD );
- return 1;
- } /* TLan_HandleStatOverflow */
- /***************************************************************
- * TLan_HandleRxEOF
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles the Rx EOF interrupt which
- * indicates a frame has been received by the adapter from
- * the net and the frame has been transferred to memory.
- * The function determines the bounce buffer the frame has
- * been loaded into, creates a new sk_buff big enough to
- * hold the frame, and sends it to protocol stack. It
- * then resets the used buffer and appends it to the end
- * of the list. If the frame was the last in the Rx
- * channel (EOC), the function restarts the receive channel
- * by sending an Rx Go command to the adapter. Then it
- * activates/continues the activity LED.
- *
- **************************************************************/
- u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int )
- {
- TLanPrivateInfo *priv = dev->priv;
- u32 ack = 0;
- int eoc = 0;
- u8 *head_buffer;
- TLanList *head_list;
- struct sk_buff *skb;
- TLanList *tail_list;
- void *t;
- u32 frameSize;
- u16 tmpCStat;
- TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)n", priv->rxHead, priv->rxTail );
- head_list = priv->rxList + priv->rxHead;
-
- while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
- frameSize = head_list->frameSize;
- ack++;
- if (tmpCStat & TLAN_CSTAT_EOC)
- eoc = 1;
-
- if (bbuf) {
- skb = dev_alloc_skb(frameSize + 7);
- if (skb == NULL)
- printk(KERN_INFO "TLAN: Couldn't allocate memory for received data.n");
- else {
- head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE);
- skb->dev = dev;
- skb_reserve(skb, 2);
- t = (void *) skb_put(skb, frameSize);
-
- priv->stats.rx_bytes += head_list->frameSize;
- memcpy( t, head_buffer, frameSize );
- skb->protocol = eth_type_trans( skb, dev );
- netif_rx( skb );
- }
- } else {
- struct sk_buff *new_skb;
-
- /*
- * I changed the algorithm here. What we now do
- * is allocate the new frame. If this fails we
- * simply recycle the frame.
- */
-
- new_skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 );
-
- if ( new_skb != NULL ) {
- /* If this ever happened it would be a problem */
- /* not any more - ac */
- skb = (struct sk_buff *) head_list->buffer[9].address;
- skb_trim( skb, frameSize );
- priv->stats.rx_bytes += frameSize;
- skb->protocol = eth_type_trans( skb, dev );
- netif_rx( skb );
-
- new_skb->dev = dev;
- skb_reserve( new_skb, 2 );
- t = (void *) skb_put( new_skb, TLAN_MAX_FRAME_SIZE );
- head_list->buffer[0].address = virt_to_bus( t );
- head_list->buffer[8].address = (u32) t;
- head_list->buffer[9].address = (u32) new_skb;
- } else
- printk(KERN_WARNING "TLAN: Couldn't allocate memory for received data.n" );
- }
- head_list->forward = 0;
- head_list->cStat = 0;
- tail_list = priv->rxList + priv->rxTail;
- tail_list->forward = virt_to_bus( head_list );
- CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS );
- CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS );
- head_list = priv->rxList + priv->rxHead;
- }
- if (!ack)
- printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.n");
-
- if ( eoc ) {
- TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d)n", priv->rxHead, priv->rxTail );
- head_list = priv->rxList + priv->rxHead;
- outl( virt_to_bus( head_list ), dev->base_addr + TLAN_CH_PARM );
- ack |= TLAN_HC_GO | TLAN_HC_RT;
- priv->rxEocCount++;
- }
- if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
- TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
- if ( priv->timer.function == NULL ) {
- priv->timer.function = &TLan_Timer;
- priv->timer.data = (unsigned long) dev;
- priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
- priv->timerSetAt = jiffies;
- priv->timerType = TLAN_TIMER_ACTIVITY;
- add_timer(&priv->timer);
- } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
- priv->timerSetAt = jiffies;
- }
- }
- dev->last_rx = jiffies;
-
- return ack;
- } /* TLan_HandleRxEOF */
- /***************************************************************
- * TLan_HandleDummy
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles the Dummy interrupt, which is
- * raised whenever a test interrupt is generated by setting
- * the Req_Int bit of HOST_CMD to 1.
- *
- **************************************************************/
- u32 TLan_HandleDummy( struct net_device *dev, u16 host_int )
- {
- printk( "TLAN: Test interrupt on %s.n", dev->name );
- return 1;
- } /* TLan_HandleDummy */
- /***************************************************************
- * TLan_HandleTxEOC
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This driver is structured to determine EOC occurances by
- * reading the CSTAT member of the list structure. Tx EOC
- * interrupts are disabled via the DIO INTDIS register.
- * However, TLAN chips before revision 3.0 didn't have this
- * functionality, so process EOC events if this is the
- * case.
- *
- **************************************************************/
- u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int )
- {
- TLanPrivateInfo *priv = dev->priv;
- TLanList *head_list;
- u32 ack = 1;
-
- host_int = 0;
- if ( priv->tlanRev < 0x30 ) {
- TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQn", priv->txHead, priv->txTail );
- head_list = priv->txList + priv->txHead;
- if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
- netif_stop_queue(dev);
- outl( virt_to_bus( head_list ), dev->base_addr + TLAN_CH_PARM );
- ack |= TLAN_HC_GO;
- } else {
- priv->txInProgress = 0;
- }
- }
- return ack;
- } /* TLan_HandleTxEOC */
- /***************************************************************
- * TLan_HandleStatusCheck
- *
- * Returns:
- * 0 if Adapter check, 1 if Network Status check.
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This function handles Adapter Check/Network Status
- * interrupts generated by the adapter. It checks the
- * vector in the HOST_INT register to determine if it is
- * an Adapter Check interrupt. If so, it resets the
- * adapter. Otherwise it clears the status registers
- * and services the PHY.
- *
- **************************************************************/
- u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int )
- {
- TLanPrivateInfo *priv = dev->priv;
- u32 ack;
- u32 error;
- u8 net_sts;
- u32 phy;
- u16 tlphy_ctl;
- u16 tlphy_sts;
-
- ack = 1;
- if ( host_int & TLAN_HI_IV_MASK ) {
- netif_stop_queue( dev );
- error = inl( dev->base_addr + TLAN_CH_PARM );
- printk( "TLAN: %s: Adaptor Error = 0x%xn", dev->name, error );
- TLan_ReadAndClearStats( dev, TLAN_RECORD );
- outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
-
- queue_task(&priv->tlan_tqueue, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
-
- netif_wake_queue(dev);
- ack = 0;
- } else {
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Checkn", dev->name );
- phy = priv->phy[priv->phyNum];
- net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS );
- if ( net_sts ) {
- TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts );
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %xn", dev->name, (unsigned) net_sts );
- }
- if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) {
- TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts );
- TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
- if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
- tlphy_ctl |= TLAN_TC_SWAPOL;
- TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
- } else if ( ( tlphy_sts & TLAN_TS_POLOK ) && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
- tlphy_ctl &= ~TLAN_TC_SWAPOL;
- TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
- }
- if (debug) {
- TLan_PhyPrint( dev );
- }
- }
- }
- return ack;
- } /* TLan_HandleStatusCheck */
- /***************************************************************
- * TLan_HandleRxEOC
- *
- * Returns:
- * 1
- * Parms:
- * dev Device assigned the IRQ that was
- * raised.
- * host_int The contents of the HOST_INT
- * port.
- *
- * This driver is structured to determine EOC occurances by
- * reading the CSTAT member of the list structure. Rx EOC
- * interrupts are disabled via the DIO INTDIS register.
- * However, TLAN chips before revision 3.0 didn't have this
- * CSTAT member or a INTDIS register, so if this chip is
- * pre-3.0, process EOC interrupts normally.
- *
- **************************************************************/
- u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int )
- {
- TLanPrivateInfo *priv = dev->priv;
- TLanList *head_list;
- u32 ack = 1;
- if ( priv->tlanRev < 0x30 ) {
- TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQn", priv->rxHead, priv->rxTail );
- head_list = priv->rxList + priv->rxHead;
- outl( virt_to_bus( head_list ), dev->base_addr + TLAN_CH_PARM );
- ack |= TLAN_HC_GO | TLAN_HC_RT;
- priv->rxEocCount++;
- }
- return ack;
- } /* TLan_HandleRxEOC */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver Timer Function
- ******************************************************************************
- *****************************************************************************/
- /***************************************************************
- * TLan_Timer
- *
- * Returns:
- * Nothing
- * Parms:
- * data A value given to add timer when
- * add_timer was called.
- *
- * This function handles timed functionality for the
- * TLAN driver. The two current timer uses are for
- * delaying for autonegotionation and driving the ACT LED.
- * - Autonegotiation requires being allowed about
- * 2 1/2 seconds before attempting to transmit a
- * packet. It would be a very bad thing to hang
- * the kernel this long, so the driver doesn't
- * allow transmission 'til after this time, for
- * certain PHYs. It would be much nicer if all
- * PHYs were interrupt-capable like the internal
- * PHY.
- * - The ACT LED, which shows adapter activity, is
- * driven by the driver, and so must be left on
- * for a short period to power up the LED so it
- * can be seen. This delay can be changed by
- * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
- * if desired. 100 ms produces a slightly
- * sluggish response.
- *
- **************************************************************/
- void TLan_Timer( unsigned long data )
- {
- struct net_device *dev = (struct net_device *) data;
- TLanPrivateInfo *priv = dev->priv;
- u32 elapsed;
- unsigned long flags = 0;
- priv->timer.function = NULL;
- switch ( priv->timerType ) {
- #ifdef MONITOR
- case TLAN_TIMER_LINK_BEAT:
- TLan_PhyMonitor( dev );
- break;
- #endif
- case TLAN_TIMER_PHY_PDOWN:
- TLan_PhyPowerDown( dev );
- break;
- case TLAN_TIMER_PHY_PUP:
- TLan_PhyPowerUp( dev );
- break;
- case TLAN_TIMER_PHY_RESET:
- TLan_PhyReset( dev );
- break;
- case TLAN_TIMER_PHY_START_LINK:
- TLan_PhyStartLink( dev );
- break;
- case TLAN_TIMER_PHY_FINISH_AN:
- TLan_PhyFinishAutoNeg( dev );
- break;
- case TLAN_TIMER_FINISH_RESET:
- TLan_FinishReset( dev );
- break;
- case TLAN_TIMER_ACTIVITY:
- spin_lock_irqsave(&priv->lock, flags);
- if ( priv->timer.function == NULL ) {
- elapsed = jiffies - priv->timerSetAt;
- if ( elapsed >= TLAN_TIMER_ACT_DELAY ) {
- TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
- } else {
- priv->timer.function = &TLan_Timer;
- priv->timer.expires = priv->timerSetAt + TLAN_TIMER_ACT_DELAY;
- spin_unlock_irqrestore(&priv->lock, flags);
- add_timer( &priv->timer );
- break;
- }
- }
- spin_unlock_irqrestore(&priv->lock, flags);
- break;
- default:
- break;
- }
- } /* TLan_Timer */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver Adapter Related Routines
- ******************************************************************************
- *****************************************************************************/
- /***************************************************************
- * TLan_ResetLists
- *
- * Returns:
- * Nothing
- * Parms:
- * dev The device structure with the list
- * stuctures to be reset.
- *
- * This routine sets the variables associated with managing
- * the TLAN lists to their initial values.
- *
- **************************************************************/
- void TLan_ResetLists( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- int i;
- TLanList *list;
- struct sk_buff *skb;
- void *t = NULL;
- priv->txHead = 0;
- priv->txTail = 0;
- for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
- list = priv->txList + i;
- list->cStat = TLAN_CSTAT_UNUSED;
- if ( bbuf ) {
- list->buffer[0].address = virt_to_bus( priv->txBuffer + ( i * TLAN_MAX_FRAME_SIZE ) );
- } else {
- list->buffer[0].address = 0;
- }
- list->buffer[2].count = 0;
- list->buffer[2].address = 0;
- list->buffer[9].address = 0;
- }
- priv->rxHead = 0;
- priv->rxTail = TLAN_NUM_RX_LISTS - 1;
- for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
- list = priv->rxList + i;
- list->cStat = TLAN_CSTAT_READY;
- list->frameSize = TLAN_MAX_FRAME_SIZE;
- list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
- if ( bbuf ) {
- list->buffer[0].address = virt_to_bus( priv->rxBuffer + ( i * TLAN_MAX_FRAME_SIZE ) );
- } else {
- skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 );
- if ( skb == NULL ) {
- printk( "TLAN: Couldn't allocate memory for received data.n" );
- /* If this ever happened it would be a problem */
- } else {
- skb->dev = dev;
- skb_reserve( skb, 2 );
- t = (void *) skb_put( skb, TLAN_MAX_FRAME_SIZE );
- }
- list->buffer[0].address = virt_to_bus( t );
- list->buffer[8].address = (u32) t;
- list->buffer[9].address = (u32) skb;
- }
- list->buffer[1].count = 0;
- list->buffer[1].address = 0;
- if ( i < TLAN_NUM_RX_LISTS - 1 )
- list->forward = virt_to_bus( list + 1 );
- else
- list->forward = 0;
- }
- } /* TLan_ResetLists */
- void TLan_FreeLists( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- int i;
- TLanList *list;
- struct sk_buff *skb;
- if ( ! bbuf ) {
- for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
- list = priv->txList + i;
- skb = (struct sk_buff *) list->buffer[9].address;
- if ( skb ) {
- dev_kfree_skb_any( skb );
- list->buffer[9].address = 0;
- }
- }
- for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
- list = priv->rxList + i;
- skb = (struct sk_buff *) list->buffer[9].address;
- if ( skb ) {
- dev_kfree_skb_any( skb );
- list->buffer[9].address = 0;
- }
- }
- }
- } /* TLan_FreeLists */
- /***************************************************************
- * TLan_PrintDio
- *
- * Returns:
- * Nothing
- * Parms:
- * io_base Base IO port of the device of
- * which to print DIO registers.
- *
- * This function prints out all the internal (DIO)
- * registers of a TLAN chip.
- *
- **************************************************************/
- void TLan_PrintDio( u16 io_base )
- {
- u32 data0, data1;
- int i;
- printk( "TLAN: Contents of internal registers for io base 0x%04hx.n", io_base );
- printk( "TLAN: Off. +0 +4n" );
- for ( i = 0; i < 0x4C; i+= 8 ) {
- data0 = TLan_DioRead32( io_base, i );
- data1 = TLan_DioRead32( io_base, i + 0x4 );
- printk( "TLAN: 0x%02x 0x%08x 0x%08xn", i, data0, data1 );
- }
- } /* TLan_PrintDio */
- /***************************************************************
- * TLan_PrintList
- *
- * Returns:
- * Nothing
- * Parms:
- * list A pointer to the TLanList structure to
- * be printed.
- * type A string to designate type of list,
- * "Rx" or "Tx".
- * num The index of the list.
- *
- * This function prints out the contents of the list
- * pointed to by the list parameter.
- *
- **************************************************************/
- void TLan_PrintList( TLanList *list, char *type, int num)
- {
- int i;
- printk( "TLAN: %s List %d at 0x%08xn", type, num, (u32) list );
- printk( "TLAN: Forward = 0x%08xn", list->forward );
- printk( "TLAN: CSTAT = 0x%04hxn", list->cStat );
- printk( "TLAN: Frame Size = 0x%04hxn", list->frameSize );
- /* for ( i = 0; i < 10; i++ ) { */
- for ( i = 0; i < 2; i++ ) {
- printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08xn", i, list->buffer[i].count, list->buffer[i].address );
- }
- } /* TLan_PrintList */
- /***************************************************************
- * TLan_ReadAndClearStats
- *
- * Returns:
- * Nothing
- * Parms:
- * dev Pointer to device structure of adapter
- * to which to read stats.
- * record Flag indicating whether to add
- *
- * This functions reads all the internal status registers
- * of the TLAN chip, which clears them as a side effect.
- * It then either adds the values to the device's status
- * struct, or discards them, depending on whether record
- * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
- *
- **************************************************************/
- void TLan_ReadAndClearStats( struct net_device *dev, int record )
- {
- TLanPrivateInfo *priv = dev->priv;
- u32 tx_good, tx_under;
- u32 rx_good, rx_over;
- u32 def_tx, crc, code;
- u32 multi_col, single_col;
- u32 excess_col, late_col, loss;
- outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR );
- tx_good = inb( dev->base_addr + TLAN_DIO_DATA );
- tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
- tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
- tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
- outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR );
- rx_good = inb( dev->base_addr + TLAN_DIO_DATA );
- rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
- rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
- rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
-
- outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR );
- def_tx = inb( dev->base_addr + TLAN_DIO_DATA );
- def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
- crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
- code = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
-
- outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
- multi_col = inb( dev->base_addr + TLAN_DIO_DATA );
- multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
- single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
- single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8;
- outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
- excess_col = inb( dev->base_addr + TLAN_DIO_DATA );
- late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 );
- loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
- if ( record ) {
- priv->stats.rx_packets += rx_good;
- priv->stats.rx_errors += rx_over + crc + code;
- priv->stats.tx_packets += tx_good;
- priv->stats.tx_errors += tx_under + loss;
- priv->stats.collisions += multi_col + single_col + excess_col + late_col;
- priv->stats.rx_over_errors += rx_over;
- priv->stats.rx_crc_errors += crc;
- priv->stats.rx_frame_errors += code;
- priv->stats.tx_aborted_errors += tx_under;
- priv->stats.tx_carrier_errors += loss;
- }
-
- } /* TLan_ReadAndClearStats */
- /***************************************************************
- * TLan_Reset
- *
- * Returns:
- * 0
- * Parms:
- * dev Pointer to device structure of adapter
- * to be reset.
- *
- * This function resets the adapter and it's physical
- * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
- * Programmer's Guide" for details. The routine tries to
- * implement what is detailed there, though adjustments
- * have been made.
- *
- **************************************************************/
- void
- TLan_ResetAdapter( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- int i;
- u32 addr;
- u32 data;
- u8 data8;
- priv->tlanFullDuplex = FALSE;
- priv->phyOnline=0;
- /* 1. Assert reset bit. */
- data = inl(dev->base_addr + TLAN_HOST_CMD);
- data |= TLAN_HC_AD_RST;
- outl(data, dev->base_addr + TLAN_HOST_CMD);
-
- udelay(1000);
- /* 2. Turn off interrupts. ( Probably isn't necessary ) */
- data = inl(dev->base_addr + TLAN_HOST_CMD);
- data |= TLAN_HC_INT_OFF;
- outl(data, dev->base_addr + TLAN_HOST_CMD);
- /* 3. Clear AREGs and HASHs. */
- for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) {
- TLan_DioWrite32( dev->base_addr, (u16) i, 0 );
- }
- /* 4. Setup NetConfig register. */
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
- TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
- /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
- outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD );
- outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD );
- /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
- outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR );
- addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
- TLan_SetBit( TLAN_NET_SIO_NMRST, addr );
- /* 7. Setup the remaining registers. */
- if ( priv->tlanRev >= 0x30 ) {
- data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
- TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 );
- }
- TLan_PhyDetect( dev );
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
-
- if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) {
- data |= TLAN_NET_CFG_BIT;
- if ( priv->aui == 1 ) {
- TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a );
- } else if ( priv->duplex == TLAN_DUPLEX_FULL ) {
- TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 );
- priv->tlanFullDuplex = TRUE;
- } else {
- TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 );
- }
- }
- if ( priv->phyNum == 0 ) {
- data |= TLAN_NET_CFG_PHY_EN;
- }
- TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
- if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
- TLan_FinishReset( dev );
- } else {
- TLan_PhyPowerDown( dev );
- }
- } /* TLan_ResetAdapter */
- void
- TLan_FinishReset( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u8 data;
- u32 phy;
- u8 sio;
- u16 status;
- u16 partner;
- u16 tlphy_ctl;
- u16 tlphy_par;
- u16 tlphy_id1, tlphy_id2;
- int i;
- phy = priv->phy[priv->phyNum];
- data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
- if ( priv->tlanFullDuplex ) {
- data |= TLAN_NET_CMD_DUPLEX;
- }
- TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data );
- data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
- if ( priv->phyNum == 0 ) {
- data |= TLAN_NET_MASK_MASK7;
- }
- TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data );
- TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 );
- TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 );
- TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 );
-
- if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || ( priv->aui ) ) {
- status = MII_GS_LINK;
- printk( "TLAN: %s: Link forced.n", dev->name );
- } else {
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
- udelay( 1000 );
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
- if ( (status & MII_GS_LINK) && /* We only support link info on Nat.Sem. PHY's */
- (tlphy_id1 == NAT_SEM_ID1) &&
- (tlphy_id2 == NAT_SEM_ID2) ) {
- TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner );
- TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par );
-
- printk( "TLAN: %s: Link active with ", dev->name );
- if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) {
- printk( "forced 10%sMbps %s-Duplexn",
- tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
- tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
- } else {
- printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplexn",
- tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
- tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
- printk("TLAN: Partner capability: ");
- for (i = 5; i <= 10; i++)
- if (partner & (1<<i))
- printk("%s", media[i-5]);
- printk("n");
- }
- TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
- #ifdef MONITOR
- /* We have link beat..for now anyway */
- priv->link = 1;
- /*Enabling link beat monitoring */
- TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT );
- #endif
- } else if (status & MII_GS_LINK) {
- printk( "TLAN: %s: Link activen", dev->name );
- TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
- }
- }
- if ( priv->phyNum == 0 ) {
- TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
- tlphy_ctl |= TLAN_TC_INTEN;
- TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl );
- sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO );
- sio |= TLAN_NET_SIO_MINTEN;
- TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio );
- }
- if ( status & MII_GS_LINK ) {
- TLan_SetMac( dev, 0, dev->dev_addr );
- priv->phyOnline = 1;
- outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
- if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) {
- outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
- }
- outl( virt_to_bus( priv->rxList ), dev->base_addr + TLAN_CH_PARM );
- outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD );
- } else {
- printk( "TLAN: %s: Link inactive, will retry in 10 secs...n", dev->name );
- TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET );
- return;
- }
- } /* TLan_FinishReset */
- /***************************************************************
- * TLan_SetMac
- *
- * Returns:
- * Nothing
- * Parms:
- * dev Pointer to device structure of adapter
- * on which to change the AREG.
- * areg The AREG to set the address in (0 - 3).
- * mac A pointer to an array of chars. Each
- * element stores one byte of the address.
- * IE, it isn't in ascii.
- *
- * This function transfers a MAC address to one of the
- * TLAN AREGs (address registers). The TLAN chip locks
- * the register on writing to offset 0 and unlocks the
- * register after writing to offset 5. If NULL is passed
- * in mac, then the AREG is filled with 0's.
- *
- **************************************************************/
- void TLan_SetMac( struct net_device *dev, int areg, char *mac )
- {
- int i;
-
- areg *= 6;
- if ( mac != NULL ) {
- for ( i = 0; i < 6; i++ )
- TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, mac[i] );
- } else {
- for ( i = 0; i < 6; i++ )
- TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, 0 );
- }
- } /* TLan_SetMac */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver PHY Layer Routines
- ******************************************************************************
- *****************************************************************************/
- /*********************************************************************
- * TLan_PhyPrint
- *
- * Returns:
- * Nothing
- * Parms:
- * dev A pointer to the device structure of the
- * TLAN device having the PHYs to be detailed.
- *
- * This function prints the registers a PHY (aka tranceiver).
- *
- ********************************************************************/
- void TLan_PhyPrint( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 i, data0, data1, data2, data3, phy;
- phy = priv->phy[priv->phyNum];
- if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
- printk( "TLAN: Device %s, Unmanaged PHY.n", dev->name );
- } else if ( phy <= TLAN_PHY_MAX_ADDR ) {
- printk( "TLAN: Device %s, PHY 0x%02x.n", dev->name, phy );
- printk( "TLAN: Off. +0 +1 +2 +3 n" );
- for ( i = 0; i < 0x20; i+= 4 ) {
- printk( "TLAN: 0x%02x", i );
- TLan_MiiReadReg( dev, phy, i, &data0 );
- printk( " 0x%04hx", data0 );
- TLan_MiiReadReg( dev, phy, i + 1, &data1 );
- printk( " 0x%04hx", data1 );
- TLan_MiiReadReg( dev, phy, i + 2, &data2 );
- printk( " 0x%04hx", data2 );
- TLan_MiiReadReg( dev, phy, i + 3, &data3 );
- printk( " 0x%04hxn", data3 );
- }
- } else {
- printk( "TLAN: Device %s, Invalid PHY.n", dev->name );
- }
- } /* TLan_PhyPrint */
- /*********************************************************************
- * TLan_PhyDetect
- *
- * Returns:
- * Nothing
- * Parms:
- * dev A pointer to the device structure of the adapter
- * for which the PHY needs determined.
- *
- * So far I've found that adapters which have external PHYs
- * may also use the internal PHY for part of the functionality.
- * (eg, AUI/Thinnet). This function finds out if this TLAN
- * chip has an internal PHY, and then finds the first external
- * PHY (starting from address 0) if it exists).
- *
- ********************************************************************/
- void TLan_PhyDetect( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 control;
- u16 hi;
- u16 lo;
- u32 phy;
- if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
- priv->phyNum = 0xFFFF;
- return;
- }
- TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi );
-
- if ( hi != 0xFFFF ) {
- priv->phy[0] = TLAN_PHY_MAX_ADDR;
- } else {
- priv->phy[0] = TLAN_PHY_NONE;
- }
- priv->phy[1] = TLAN_PHY_NONE;
- for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) {
- TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control );
- TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi );
- TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo );
- if ( ( control != 0xFFFF ) || ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) {
- TLAN_DBG( TLAN_DEBUG_GNRL, "PHY found at %02x %04x %04x %04xn", phy, control, hi, lo );
- if ( ( priv->phy[1] == TLAN_PHY_NONE ) && ( phy != TLAN_PHY_MAX_ADDR ) ) {
- priv->phy[1] = phy;
- }
- }
- }
- if ( priv->phy[1] != TLAN_PHY_NONE ) {
- priv->phyNum = 1;
- } else if ( priv->phy[0] != TLAN_PHY_NONE ) {
- priv->phyNum = 0;
- } else {
- printk( "TLAN: Cannot initialize device, no PHY was found!n" );
- }
- } /* TLan_PhyDetect */
- void TLan_PhyPowerDown( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 value;
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).n", dev->name );
- value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
- TLan_MiiSync( dev->base_addr );
- TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
- if ( ( priv->phyNum == 0 ) && ( priv->phy[1] != TLAN_PHY_NONE ) && ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) {
- TLan_MiiSync( dev->base_addr );
- TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value );
- }
- /* Wait for 50 ms and powerup
- * This is abitrary. It is intended to make sure the
- * tranceiver settles.
- */
- TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP );
- } /* TLan_PhyPowerDown */
- void TLan_PhyPowerUp( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 value;
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.n", dev->name );
- TLan_MiiSync( dev->base_addr );
- value = MII_GC_LOOPBK;
- TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
- TLan_MiiSync(dev->base_addr);
- /* Wait for 500 ms and reset the
- * tranceiver. The TLAN docs say both 50 ms and
- * 500 ms, so do the longer, just in case.
- */
- TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET );
- } /* TLan_PhyPowerUp */
- void TLan_PhyReset( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 phy;
- u16 value;
- phy = priv->phy[priv->phyNum];
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.n", dev->name );
- TLan_MiiSync( dev->base_addr );
- value = MII_GC_LOOPBK | MII_GC_RESET;
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value );
- TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
- while ( value & MII_GC_RESET ) {
- TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
- }
- /* Wait for 500 ms and initialize.
- * I don't remember why I wait this long.
- * I've changed this to 50ms, as it seems long enough.
- */
- TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK );
- } /* TLan_PhyReset */
- void TLan_PhyStartLink( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 ability;
- u16 control;
- u16 data;
- u16 phy;
- u16 status;
- u16 tctl;
- phy = priv->phy[priv->phyNum];
- TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.n", dev->name );
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability );
- if ( ( status & MII_GS_AUTONEG ) &&
- ( ! priv->aui ) ) {
- ability = status >> 11;
- if ( priv->speed == TLAN_SPEED_10 &&
- priv->duplex == TLAN_DUPLEX_HALF) {
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000);
- } else if ( priv->speed == TLAN_SPEED_10 &&
- priv->duplex == TLAN_DUPLEX_FULL) {
- priv->tlanFullDuplex = TRUE;
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100);
- } else if ( priv->speed == TLAN_SPEED_100 &&
- priv->duplex == TLAN_DUPLEX_HALF) {
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000);
- } else if ( priv->speed == TLAN_SPEED_100 &&
- priv->duplex == TLAN_DUPLEX_FULL) {
- priv->tlanFullDuplex = TRUE;
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100);
- } else {
-
- /* Set Auto-Neg advertisement */
- TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1);
- /* Enablee Auto-Neg */
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 );
- /* Restart Auto-Neg */
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 );
- /* Wait for 4 sec for autonegotiation
- * to complete. The max spec time is less than this
- * but the card need additional time to start AN.
- * .5 sec should be plenty extra.
- */
- printk( "TLAN: %s: Starting autonegotiation.n", dev->name );
- TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN );
- return;
- }
-
- }
-
- if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) {
- priv->phyNum = 0;
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
- TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
- TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN );
- return;
- } else if ( priv->phyNum == 0 ) {
- TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl );
- if ( priv->aui ) {
- tctl |= TLAN_TC_AUISEL;
- } else {
- tctl &= ~TLAN_TC_AUISEL;
- control = 0;
- if ( priv->duplex == TLAN_DUPLEX_FULL ) {
- control |= MII_GC_DUPLEX;
- priv->tlanFullDuplex = TRUE;
- }
- if ( priv->speed == TLAN_SPEED_100 ) {
- control |= MII_GC_SPEEDSEL;
- }
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control );
- }
- TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl );
- }
- /* Wait for 2 sec to give the tranceiver time
- * to establish link.
- */
- TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET );
- } /* TLan_PhyStartLink */
- void TLan_PhyFinishAutoNeg( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 an_adv;
- u16 an_lpa;
- u16 data;
- u16 mode;
- u16 phy;
- u16 status;
-
- phy = priv->phy[priv->phyNum];
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
- udelay( 1000 );
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
- if ( ! ( status & MII_GS_AUTOCMPLT ) ) {
- /* Wait for 8 sec to give the process
- * more time. Perhaps we should fail after a while.
- */
- if (!priv->neg_be_verbose++) {
- printk(KERN_INFO "TLAN: Giving autonegotiation more time.n");
- printk(KERN_INFO "TLAN: Please check that your adapter hasn");
- printk(KERN_INFO "TLAN: been properly connected to a HUB or Switch.n");
- printk(KERN_INFO "TLAN: Trying to establish link in the background...n");
- }
- TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN );
- return;
- }
- printk( "TLAN: %s: Autonegotiation complete.n", dev->name );
- TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv );
- TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa );
- mode = an_adv & an_lpa & 0x03E0;
- if ( mode & 0x0100 ) {
- priv->tlanFullDuplex = TRUE;
- } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) {
- priv->tlanFullDuplex = TRUE;
- }
- if ( ( ! ( mode & 0x0180 ) ) && ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && ( priv->phyNum != 0 ) ) {
- priv->phyNum = 0;
- data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
- TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
- TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN );
- return;
- }
- if ( priv->phyNum == 0 ) {
- if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || ( an_adv & an_lpa & 0x0040 ) ) {
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB | MII_GC_DUPLEX );
- printk( "TLAN: Starting internal PHY with FULL-DUPLEXn" );
- } else {
- TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB );
- printk( "TLAN: Starting internal PHY with HALF-DUPLEXn" );
- }
- }
- /* Wait for 100 ms. No reason in partiticular.
- */
- TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET );
-
- } /* TLan_PhyFinishAutoNeg */
- #ifdef MONITOR
- /*********************************************************************
- *
- * TLan_phyMonitor
- *
- * Returns:
- * None
- *
- * Params:
- * dev The device structure of this device.
- *
- *
- * This function monitors PHY condition by reading the status
- * register via the MII bus. This can be used to give info
- * about link changes (up/down), and possible switch to alternate
- * media.
- *
- * ******************************************************************/
- void TLan_PhyMonitor( struct net_device *dev )
- {
- TLanPrivateInfo *priv = dev->priv;
- u16 phy;
- u16 phy_status;
- phy = priv->phy[priv->phyNum];
- /* Get PHY status register */
- TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status );
- /* Check if link has been lost */
- if (!(phy_status & MII_GS_LINK)) {
- if (priv->link) {
- priv->link = 0;
- printk(KERN_DEBUG "TLAN: %s has lost linkn", dev->name);
- dev->flags &= ~IFF_RUNNING;
- TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
- return;
- }
- }
- /* Link restablished? */
- if ((phy_status & MII_GS_LINK) && !priv->link) {
- priv->link = 1;
- printk(KERN_DEBUG "TLAN: %s has reestablished linkn", dev->name);
- dev->flags |= IFF_RUNNING;
- }
- /* Setup a new monitor */
- TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
- }
- #endif /* MONITOR */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver MII Routines
- These routines are based on the information in Chap. 2 of the
- "ThunderLAN Programmer's Guide", pp. 15-24.
- ******************************************************************************
- *****************************************************************************/
- /***************************************************************
- * TLan_MiiReadReg
- *
- * Returns:
- * 0 if ack received ok
- * 1 otherwise.
- *
- * Parms:
- * dev The device structure containing
- * The io address and interrupt count
- * for this device.
- * phy The address of the PHY to be queried.
- * reg The register whose contents are to be
- * retreived.
- * val A pointer to a variable to store the
- * retrieved value.
- *
- * This function uses the TLAN's MII bus to retreive the contents
- * of a given register on a PHY. It sends the appropriate info
- * and then reads the 16-bit register value from the MII bus via
- * the TLAN SIO register.
- *
- **************************************************************/
- int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val )
- {
- u8 nack;
- u16 sio, tmp;
- u32 i;
- int err;
- int minten;
- TLanPrivateInfo *priv = dev->priv;
- unsigned long flags = 0;
- err = FALSE;
- outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
- sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- if (!in_irq())
- spin_lock_irqsave(&priv->lock, flags);
- TLan_MiiSync(dev->base_addr);
- minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
- if ( minten )
- TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio);
- TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
- TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */
- TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
- TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
- TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */
- TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */
- TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
- TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */
- nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */
- TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */
- if (nack) { /* No ACK, so fake it */
- for (i = 0; i < 16; i++) {
- TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
- TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
- }
- tmp = 0xffff;
- err = TRUE;
- } else { /* ACK, so read data */
- for (tmp = 0, i = 0x8000; i; i >>= 1) {
- TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
- if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio))
- tmp |= i;
- TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
- }
- }
- TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */
- TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
- if ( minten )
- TLan_SetBit(TLAN_NET_SIO_MINTEN, sio);
- *val = tmp;
-
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
- return err;
- } /* TLan_MiiReadReg */
- /***************************************************************
- * TLan_MiiSendData
- *
- * Returns:
- * Nothing
- * Parms:
- * base_port The base IO port of the adapter in
- * question.
- * dev The address of the PHY to be queried.
- * data The value to be placed on the MII bus.
- * num_bits The number of bits in data that are to
- * be placed on the MII bus.
- *
- * This function sends on sequence of bits on the MII
- * configuration bus.
- *
- **************************************************************/
- void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits )
- {
- u16 sio;
- u32 i;
- if ( num_bits == 0 )
- return;
- outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
- sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
- TLan_SetBit( TLAN_NET_SIO_MTXEN, sio );
- for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) {
- TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
- (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
- if ( data & i )
- TLan_SetBit( TLAN_NET_SIO_MDATA, sio );
- else
- TLan_ClearBit( TLAN_NET_SIO_MDATA, sio );
- TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
- (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
- }
- } /* TLan_MiiSendData */
- /***************************************************************
- * TLan_MiiSync
- *
- * Returns:
- * Nothing
- * Parms:
- * base_port The base IO port of the adapter in
- * question.
- *
- * This functions syncs all PHYs in terms of the MII configuration
- * bus.
- *
- **************************************************************/
- void TLan_MiiSync( u16 base_port )
- {
- int i;
- u16 sio;
- outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
- sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
- TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio );
- for ( i = 0; i < 32; i++ ) {
- TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
- TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
- }
- } /* TLan_MiiSync */
- /***************************************************************
- * TLan_MiiWriteReg
- *
- * Returns:
- * Nothing
- * Parms:
- * dev The device structure for the device
- * to write to.
- * phy The address of the PHY to be written to.
- * reg The register whose contents are to be
- * written.
- * val The value to be written to the register.
- *
- * This function uses the TLAN's MII bus to write the contents of a
- * given register on a PHY. It sends the appropriate info and then
- * writes the 16-bit register value from the MII configuration bus
- * via the TLAN SIO register.
- *
- **************************************************************/
- void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val )
- {
- u16 sio;
- int minten;
- unsigned long flags = 0;
- TLanPrivateInfo *priv = dev->priv;
- outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
- sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
-
- if (!in_irq())
- spin_lock_irqsave(&priv->lock, flags);
- TLan_MiiSync( dev->base_addr );
- minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
- if ( minten )
- TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio );
- TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
- TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */
- TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
- TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
- TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */
- TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */
- TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */
- TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
- if ( minten )
- TLan_SetBit( TLAN_NET_SIO_MINTEN, sio );
-
- if (!in_irq())
- spin_unlock_irqrestore(&priv->lock, flags);
- } /* TLan_MiiWriteReg */
- /*****************************************************************************
- ******************************************************************************
- ThunderLAN Driver Eeprom routines
- The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A
- EEPROM. These functions are based on information in Microchip's
- data sheet. I don't know how well this functions will work with
- other EEPROMs.
- ******************************************************************************
- *****************************************************************************/
- /***************************************************************
- * TLan_EeSendStart
- *
- * Returns:
- * Nothing
- * Parms:
- * io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- *
- * This function sends a start cycle to an EEPROM attached
- * to a TLAN chip.
- *
- **************************************************************/
- void TLan_EeSendStart( u16 io_base )
- {
- u16 sio;
- outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
- sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
- TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
- TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
- TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
- } /* TLan_EeSendStart */
- /***************************************************************
- * TLan_EeSendByte
- *
- * Returns:
- * If the correct ack was received, 0, otherwise 1
- * Parms: io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- * data The 8 bits of information to
- * send to the EEPROM.
- * stop If TLAN_EEPROM_STOP is passed, a
- * stop cycle is sent after the
- * byte is sent after the ack is
- * read.
- *
- * This function sends a byte on the serial EEPROM line,
- * driving the clock to send each bit. The function then
- * reverses transmission direction and reads an acknowledge
- * bit.
- *
- **************************************************************/
- int TLan_EeSendByte( u16 io_base, u8 data, int stop )
- {
- int err;
- u8 place;
- u16 sio;
- outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
- sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
- /* Assume clock is low, tx is enabled; */
- for ( place = 0x80; place != 0; place >>= 1 ) {
- if ( place & data )
- TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
- else
- TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
- }
- TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio );
- TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
- if ( ( ! err ) && stop ) {
- TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
- }
- return ( err );
- } /* TLan_EeSendByte */
- /***************************************************************
- * TLan_EeReceiveByte
- *
- * Returns:
- * Nothing
- * Parms:
- * io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- * data An address to a char to hold the
- * data sent from the EEPROM.
- * stop If TLAN_EEPROM_STOP is passed, a
- * stop cycle is sent after the
- * byte is received, and no ack is
- * sent.
- *
- * This function receives 8 bits of data from the EEPROM
- * over the serial link. It then sends and ack bit, or no
- * ack and a stop bit. This function is used to retrieve
- * data after the address of a byte in the EEPROM has been
- * sent.
- *
- **************************************************************/
- void TLan_EeReceiveByte( u16 io_base, u8 *data, int stop )
- {
- u8 place;
- u16 sio;
- outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
- sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
- *data = 0;
- /* Assume clock is low, tx is enabled; */
- TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
- for ( place = 0x80; place; place >>= 1 ) {
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) )
- *data |= place;
- TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
- }
- TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
- if ( ! stop ) {
- TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
- } else {
- TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
- TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
- TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
- }
- } /* TLan_EeReceiveByte */
- /***************************************************************
- * TLan_EeReadByte
- *
- * Returns:
- * No error = 0, else, the stage at which the error
- * occurred.
- * Parms:
- * io_base The IO port base address for the
- * TLAN device with the EEPROM to
- * use.
- * ee_addr The address of the byte in the
- * EEPROM whose contents are to be
- * retrieved.
- * data An address to a char to hold the
- * data obtained from the EEPROM.
- *
- * This function reads a byte of information from an byte
- * cell in the EEPROM.
- *
- **************************************************************/
- int TLan_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data )
- {
- int err;
- TLanPrivateInfo *priv = dev->priv;
- unsigned long flags = 0;
- int ret=0;
- spin_lock_irqsave(&priv->lock, flags);
- TLan_EeSendStart( dev->base_addr );
- err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK );
- if (err)
- {
- ret=1;
- goto fail;
- }
- err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK );
- if (err)
- {
- ret=2;
- goto fail;
- }
- TLan_EeSendStart( dev->base_addr );
- err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK );
- if (err)
- {
- ret=3;
- goto fail;
- }
- TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP );
- fail:
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
- } /* TLan_EeReadByte */