diff options
Diffstat (limited to 'drivers/net/tlan.c')
| -rw-r--r-- | drivers/net/tlan.c | 3304 |
1 files changed, 3304 insertions, 0 deletions
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c new file mode 100644 index 0000000..a7ffa64 --- /dev/null +++ b/drivers/net/tlan.c @@ -0,0 +1,3304 @@ +/******************************************************************************* + * + * Linux ThunderLAN Driver + * + * tlan.c + * by James Banks + * + * (C) 1997-1998 Caldera, Inc. + * (C) 1998 James Banks + * (C) 1999-2001 Torben Mathiasen + * (C) 2002 Samuel Chessman + * + * 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.) + * + * Samuel Chessman <chessman@tux.org> New Maintainer! + * + * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be + * 10T half duplex no loopback + * Thanks to Gunnar Eikman + *******************************************************************************/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/eisa.h> +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/delay.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/mii.h> + +#include "tlan.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: Samuel Chessman <chessman@tux.org>"); +MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters"); +MODULE_LICENSE("GPL"); + + +/* Define this to enable Link beat monitoring */ +#undef MONITOR + +/* Turn on debugging. See Documentation/networking/tlan.txt for details */ +static int debug; + +static int bbuf; +static u8 *TLanPadBuffer; +static dma_addr_t TLanPadBufferDMA; +static char TLanSignature[] = "TLAN"; +static const char tlan_banner[] = "ThunderLAN driver v1.15\n"; +static int tlan_have_pci; +static int tlan_have_eisa; + +static const char *media[] = { + "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ", + "100baseTx-FD", "100baseT4", NULL +}; + +static struct board { + const char *deviceLabel; + u32 flags; + u16 addrOfs; +} board_info[] = { + { "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[] = { + { 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 irqreturn_t 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 void +TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb) +{ + unsigned long addr = (unsigned long)skb; + tag->buffer[9].address = (u32)addr; + addr >>= 31; /* >>= 32 is undefined for 32bit arch, stupid C */ + addr >>= 1; + tag->buffer[8].address = (u32)addr; +} + +static struct sk_buff * +TLan_GetSKB( struct tlan_list_tag *tag) +{ + unsigned long addr = tag->buffer[8].address; + addr <<= 31; + addr <<= 1; + addr |= tag->buffer[9].address; + return (struct sk_buff *) addr; +} + + +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 = netdev_priv(dev); + 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 = netdev_priv(dev); + + unregister_netdev( dev ); + + if ( priv->dmaStorage ) { + pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA ); + } + +#ifdef CONFIG_PCI + pci_release_regions(pdev); +#endif + + free_netdev( 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 *) pci_alloc_consistent(NULL, TLAN_MIN_FRAME_SIZE, &TLanPadBufferDMA); + + 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: %d\n", + TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s", + tlan_have_pci, tlan_have_eisa); + + if (TLanDevicesInstalled == 0) { + pci_unregister_driver(&tlan_driver); + pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA); + 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, rc = -ENODEV; + + if (pdev) { + rc = pci_enable_device(pdev); + if (rc) + return rc; + + rc = pci_request_regions(pdev, TLanSignature); + if (rc) { + printk(KERN_ERR "TLAN: Could not reserve IO regions\n"); + goto err_out; + } + } + + dev = alloc_etherdev(sizeof(TLanPrivateInfo)); + if (dev == NULL) { + printk(KERN_ERR "TLAN: Could not allocate memory for device.\n"); + rc = -ENOMEM; + goto err_out_regions; + } + SET_MODULE_OWNER(dev); + SET_NETDEV_DEV(dev, &pdev->dev); + + priv = netdev_priv(dev); + + priv->pciDev = pdev; + + /* Is this a PCI device? */ + if (pdev) { + u32 pci_io_base = 0; + + priv->adapter = &board_info[ent->driver_data]; + + rc = pci_set_dma_mask(pdev, 0xFFFFFFFF); + if (rc) { + printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n"); + goto err_out_free_dev; + } + + 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 available\n"); + rc = -EIO; + goto err_out_free_dev; + } + + 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_WORK(&priv->tlan_tqueue, (void *)(void*)TLan_tx_timeout, dev); + + spin_lock_init(&priv->lock); + + rc = TLan_Init(dev); + if (rc) { + printk(KERN_ERR "TLAN: Could not set up device.\n"); + goto err_out_free_dev; + } + + rc = register_netdev(dev); + if (rc) { + printk(KERN_ERR "TLAN: Could not register device.\n"); + goto err_out_uninit; + } + + + 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. %d\n", + dev->name, + (int) dev->irq, + (int) dev->base_addr, + priv->adapter->deviceLabel, + priv->adapterRev); + return 0; + +err_out_uninit: + pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, + priv->dmaStorageDMA ); +err_out_free_dev: + free_netdev(dev); +err_out_regions: +#ifdef CONFIG_PCI + if (pdev) + pci_release_regions(pdev); +#endif +err_out: + if (pdev) + pci_disable_device(pdev); + return rc; +} + + +static void TLan_Eisa_Cleanup(void) +{ + struct net_device *dev; + TLanPrivateInfo *priv; + + while( tlan_have_eisa ) { + dev = TLan_Eisa_Devices; + priv = netdev_priv(dev); + if (priv->dmaStorage) { + pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA ); + } + release_region( dev->base_addr, 0x10); + unregister_netdev( dev ); + TLan_Eisa_Devices = priv->nextDevice; + free_netdev( dev ); + tlan_have_eisa--; + } +} + + +static void __exit tlan_exit(void) +{ + pci_unregister_driver(&tlan_driver); + + if (tlan_have_eisa) + TLan_Eisa_Cleanup(); + + pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA); + +} + + +/* 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 present\n"); + 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%4x\n", (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID)); + TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (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 one\n"); + + + /* 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 found\n"); + continue; + + out2: if (debug == 0x10) + printk("Card found but it is not enabled, skipping\n"); + continue; + + } + +} /* TLan_EisaProbe */ + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void TLan_Poll(struct net_device *dev) +{ + disable_irq(dev->irq); + TLan_HandleInterrupt(dev->irq, dev, NULL); + enable_irq(dev->irq); +} +#endif + + + + + /*************************************************************** + * 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 = netdev_priv(dev); + + 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 = pci_alloc_consistent(priv->pciDev, dma_size, &priv->dmaStorageDMA); + priv->dmaSize = dma_size; + + if ( priv->dmaStorage == NULL ) { + printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n", + dev->name ); + return -ENOMEM; + } + memset( priv->dmaStorage, 0, dma_size ); + priv->rxList = (TLanList *) + ( ( ( (u32) priv->dmaStorage ) + 7 ) & 0xFFFFFFF8 ); + priv->rxListDMA = ( ( ( (u32) priv->dmaStorageDMA ) + 7 ) & 0xFFFFFFF8 ); + priv->txList = priv->rxList + TLAN_NUM_RX_LISTS; + priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS; + if ( bbuf ) { + priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS ); + priv->rxBufferDMA =priv->txListDMA + sizeof(TLanList) * TLAN_NUM_TX_LISTS; + priv->txBuffer = priv->rxBuffer + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); + priv->txBufferDMA = priv->rxBufferDMA + ( 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: %d\n", + dev->name, + err ); + } + dev->addr_len = 6; + + netif_carrier_off(dev); + + /* 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; +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = &TLan_Poll; +#endif + 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 = netdev_priv(dev); + 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: %x\n", 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 = netdev_priv(dev); + struct mii_ioctl_data *data = if_mii(rq); + u32 phy = priv->phy[priv->phyNum]; + + if (!priv->phyOnline) + return -EAGAIN; + + switch(cmd) { + case SIOCGMIIPHY: /* Get address of MII PHY in use. */ + data->phy_id = phy; + + + case SIOCGMIIREG: /* Read MII PHY register. */ + TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out); + return 0; + + + case SIOCSMIIREG: /* Write MII PHY register. */ + 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 = netdev_priv(dev); + TLanList *tail_list; + dma_addr_t tail_list_phys; + u8 *tail_buffer; + int pad; + unsigned long flags; + + if ( ! priv->phyOnline ) { + TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", dev->name ); + dev_kfree_skb_any(skb); + return 0; + } + + tail_list = priv->txList + priv->txTail; + tail_list_phys = priv->txListDMA + sizeof(TLanList) * 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 = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE); + TLan_StoreSKB(tail_list, 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 = TLanPadBufferDMA; + } 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 %d\n", priv->txTail ); + outl( tail_list_phys, 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 channel\n", priv->txTail ); + if ( priv->txTail == 0 ) { + ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = tail_list_phys; + } else { + ( priv->txList + ( priv->txTail - 1 ) )->forward = tail_list_phys; + } + } + 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 irqreturn_t 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 = netdev_priv(dev); + + 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); + + return IRQ_HANDLED; +} /* 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 = netdev_priv(dev); + + 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 = netdev_priv(dev); + int i; + + /* Should only read stats if open ? */ + TLan_ReadAndClearStats( dev, TLAN_RECORD ); + + TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, priv->rxEocCount ); + TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", 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 *) netdev_priv(dev) )->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 = netdev_priv(dev); + int eoc = 0; + TLanList *head_list; + dma_addr_t head_list_phys; + 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 ) { + struct sk_buff *skb = TLan_GetSKB(head_list); + pci_unmap_single(priv->pciDev, head_list->buffer[0].address, skb->len, PCI_DMA_TODEVICE); + dev_kfree_skb_any(skb); + head_list->buffer[8].address = 0; + 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; + head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; + if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { + outl(head_list_phys, 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 = netdev_priv(dev); + 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; + dma_addr_t head_list_phys; + + TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail ); + head_list = priv->rxList + priv->rxHead; + head_list_phys = priv->rxListDMA + sizeof(TLanList) * 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 ) { + skb = TLan_GetSKB(head_list); + pci_unmap_single(priv->pciDev, head_list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); + 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 = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); + head_list->buffer[8].address = (u32) t; + TLan_StoreSKB(head_list, 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 = head_list_phys; + + CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS ); + CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS ); + head_list = priv->rxList + priv->rxHead; + head_list_phys = priv->rxListDMA + sizeof(TLanList) * 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; + head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; + outl(head_list_phys, 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 occurrences 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 = netdev_priv(dev); + TLanList *head_list; + dma_addr_t head_list_phys; + u32 ack = 1; + + host_int = 0; + if ( priv->tlanRev < 0x30 ) { + TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", priv->txHead, priv->txTail ); + head_list = priv->txList + priv->txHead; + head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; + if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { + netif_stop_queue(dev); + outl( head_list_phys, 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 = netdev_priv(dev); + 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%x\n", dev->name, error ); + TLan_ReadAndClearStats( dev, TLAN_RECORD ); + outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); + + schedule_work(&priv->tlan_tqueue); + + netif_wake_queue(dev); + ack = 0; + } else { + TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", 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 = %x\n", 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 occurrences 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 = netdev_priv(dev); + dma_addr_t head_list_phys; + u32 ack = 1; + + if ( priv->tlanRev < 0x30 ) { + TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", priv->rxHead, priv->rxTail ); + head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; + outl( head_list_phys, 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 = netdev_priv(dev); + 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 = netdev_priv(dev); + int i; + TLanList *list; + dma_addr_t list_phys; + 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 = priv->txBufferDMA + ( i * TLAN_MAX_FRAME_SIZE ); + } else { + list->buffer[0].address = 0; + } + list->buffer[2].count = 0; + list->buffer[2].address = 0; + list->buffer[8].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_phys = priv->rxListDMA + sizeof(TLanList) * 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 = priv->rxBufferDMA + ( 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 = pci_map_single(priv->pciDev, t, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); + list->buffer[8].address = (u32) t; + TLan_StoreSKB(list, skb); + } + list->buffer[1].count = 0; + list->buffer[1].address = 0; + if ( i < TLAN_NUM_RX_LISTS - 1 ) + list->forward = list_phys + sizeof(TLanList); + else + list->forward = 0; + } + +} /* TLan_ResetLists */ + + +void TLan_FreeLists( struct net_device *dev ) +{ + TLanPrivateInfo *priv = netdev_priv(dev); + int i; + TLanList *list; + struct sk_buff *skb; + + if ( ! bbuf ) { + for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { + list = priv->txList + i; + skb = TLan_GetSKB(list); + if ( skb ) { + pci_unmap_single(priv->pciDev, list->buffer[0].address, skb->len, PCI_DMA_TODEVICE); + dev_kfree_skb_any( skb ); + list->buffer[8].address = 0; + list->buffer[9].address = 0; + } + } + + for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { + list = priv->rxList + i; + skb = TLan_GetSKB(list); + if ( skb ) { + pci_unmap_single(priv->pciDev, list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); + dev_kfree_skb_any( skb ); + list->buffer[8].address = 0; + 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 +4\n" ); + 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%08x\n", 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%08x\n", type, num, (u32) list ); + printk( "TLAN: Forward = 0x%08x\n", list->forward ); + printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat ); + printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize ); + /* for ( i = 0; i < 10; i++ ) { */ + for ( i = 0; i < 2; i++ ) { + printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", 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 = netdev_priv(dev); + 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 = netdev_priv(dev); + int i; + u32 addr; + u32 data; + u8 data8; + + priv->tlanFullDuplex = FALSE; + priv->phyOnline=0; + netif_carrier_off(dev); + +/* 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 = netdev_priv(dev); + 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-Duplex\n", + tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", + tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); + } else { + printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n", + 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 active\n", 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( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM ); + outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD ); + netif_carrier_on(dev); + } 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 transceiver). + * + ********************************************************************/ + +void TLan_PhyPrint( struct net_device *dev ) +{ + TLanPrivateInfo *priv = netdev_priv(dev); + 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%04hx\n", 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 = netdev_priv(dev); + 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 %04x\n", 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 = netdev_priv(dev); + 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 + * transceiver settles. + */ + TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP ); + +} /* TLan_PhyPowerDown */ + + + + +void TLan_PhyPowerUp( struct net_device *dev ) +{ + TLanPrivateInfo *priv = netdev_priv(dev); + 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 + * transceiver. 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 = netdev_priv(dev); + 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 = netdev_priv(dev); + 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 ) { + control = 0; + TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl ); + if ( priv->aui ) { + tctl |= TLAN_TC_AUISEL; + } else { + tctl &= ~TLAN_TC_AUISEL; + 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 transceiver time + * to establish link. + */ + TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET ); + +} /* TLan_PhyStartLink */ + + + + +void TLan_PhyFinishAutoNeg( struct net_device *dev ) +{ + TLanPrivateInfo *priv = netdev_priv(dev); + 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 has\n"); + 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-DUPLEX\n" ); + } else { + TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB ); + printk( "TLAN: Starting internal PHY with HALF-DUPLEX\n" ); + } + } + + /* 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 = netdev_priv(dev); + 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 link\n", 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 link\n", 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 = netdev_priv(dev); + 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 = netdev_priv(dev); + + 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 = netdev_priv(dev); + 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 */ + + + |
