diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/tlan.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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 00000000000..a7ffa64502d --- /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 |