diff options
Diffstat (limited to 'drivers/net/tlan.c')
| -rw-r--r-- | drivers/net/tlan.c | 3318 |
1 files changed, 0 insertions, 3318 deletions
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c deleted file mode 100644 index fabaeffb315..00000000000 --- a/drivers/net/tlan.c +++ /dev/null @@ -1,3318 +0,0 @@ -/******************************************************************************* - * - * 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. - * - ** 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@lxorguk.ukuu.org.uk>: - * 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 - * - * Sakari Ailus <sakari.ailus@iki.fi>: - * - * v1.15a Dec 15 2008 - Remove bbuf support, it doesn't work anyway. - * - *******************************************************************************/ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/eisa.h> -#include <linux/pci.h> -#include <linux/dma-mapping.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_param_array(aui, int, NULL, 0); -module_param_array(duplex, int, NULL, 0); -module_param_array(speed, int, NULL, 0); -MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)"); -MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)"); -MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)"); - -MODULE_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; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "ThunderLAN debug mask"); - -static const char TLanSignature[] = "TLAN"; -static const char tlan_banner[] = "ThunderLAN driver v1.15a\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 netdev_tx_t TLan_StartTx( struct sk_buff *, struct net_device *); -static irqreturn_t TLan_HandleInterrupt( int, void *); -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 void TLan_tx_timeout_work(struct work_struct *work); -static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent); - -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 inline void -TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb) -{ - unsigned long addr = (unsigned long)skb; - tag->buffer[9].address = addr; - tag->buffer[8].address = upper_32_bits(addr); -} - -static inline struct sk_buff * -TLan_GetSKB( const struct tlan_list_tag *tag) -{ - unsigned long addr; - - addr = tag->buffer[9].address; - addr |= (tag->buffer[8].address << 16) << 16; - return (struct sk_buff *) addr; -} - - -static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = { - NULL, - 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) -{ - int rc = -ENODEV; - - printk(KERN_INFO "%s", tlan_banner); - - TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n"); - - /* Use new style PCI probing. Now the kernel will - do most of this for us */ - rc = pci_register_driver(&tlan_driver); - - if (rc != 0) { - printk(KERN_ERR "TLAN: Could not register pci driver.\n"); - goto err_out_pci_free; - } - - 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) { - rc = -ENODEV; - goto err_out_pci_unreg; - } - return 0; - -err_out_pci_unreg: - pci_unregister_driver(&tlan_driver); -err_out_pci_free: - return rc; -} - - -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; - u16 device_id; - int reg, rc = -ENODEV; - -#ifdef CONFIG_PCI - 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; - } - } -#endif /* CONFIG_PCI */ - - 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_NETDEV_DEV(dev, &pdev->dev); - - priv = netdev_priv(dev); - - priv->pciDev = pdev; - priv->dev = dev; - - /* 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, DMA_BIT_MASK(32)); - if (rc) { - printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n"); - goto err_out_free_dev; - } - - 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 = pdev->revision; - 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, TLan_tx_timeout_work); - - 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(); - -} - - -/* 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); - enable_irq(dev->irq); -} -#endif - -static const struct net_device_ops TLan_netdev_ops = { - .ndo_open = TLan_Open, - .ndo_stop = TLan_Close, - .ndo_start_xmit = TLan_StartTx, - .ndo_tx_timeout = TLan_tx_timeout, - .ndo_get_stats = TLan_GetStats, - .ndo_set_multicast_list = TLan_SetMulticastList, - .ndo_do_ioctl = TLan_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = TLan_Poll, -#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); - - 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 *) ALIGN((unsigned long)priv->dmaStorage, 8); - priv->rxListDMA = ALIGN(priv->dmaStorageDMA, 8); - priv->txList = priv->rxList + TLAN_NUM_RX_LISTS; - priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS; - - 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->netdev_ops = &TLan_netdev_ops; - 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, IRQF_SHARED, - dev->name, dev ); - - if ( err ) { - pr_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. */ - 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_tx_timeout_work - * - * Returns: nothing - * - * Params: - * work work item of device which timed out - * - **************************************************************/ - -static void TLan_tx_timeout_work(struct work_struct *work) -{ - TLanPrivateInfo *priv = - container_of(work, TLanPrivateInfo, tlan_tqueue); - - TLan_tx_timeout(priv->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 netdev_tx_t TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) -{ - TLanPrivateInfo *priv = netdev_priv(dev); - dma_addr_t tail_list_phys; - TLanList *tail_list; - unsigned long flags; - unsigned int txlen; - - if ( ! priv->phyOnline ) { - TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", - dev->name ); - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } - - if (skb_padto(skb, TLAN_MIN_FRAME_SIZE)) - return NETDEV_TX_OK; - txlen = max(skb->len, (unsigned int)TLAN_MIN_FRAME_SIZE); - - 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 NETDEV_TX_BUSY; - } - - tail_list->forward = 0; - - tail_list->buffer[0].address = pci_map_single(priv->pciDev, - skb->data, txlen, - PCI_DMA_TODEVICE); - TLan_StoreSKB(tail_list, skb); - - tail_list->frameSize = (u16) txlen; - tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen; - 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 ); - - dev->trans_start = jiffies; - return NETDEV_TX_OK; - -} /* 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. - * - * 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 net_device *dev = dev_id; - TLanPrivateInfo *priv = netdev_priv(dev); - u16 host_int; - u16 type; - - spin_lock(&priv->lock); - - host_int = inw( dev->base_addr + TLAN_HOST_INT ); - type = ( host_int & TLAN_HI_IT_MASK ) >> 2; - if ( type ) { - u32 ack; - u32 host_cmd; - - outw( host_int, dev->base_addr + TLAN_HOST_INT ); - 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_RETVAL(type); -} /* 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 &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_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. - * - **************************************************************/ - -static 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)) { - struct sk_buff *skb = TLan_GetSKB(head_list); - - ack++; - pci_unmap_single(priv->pciDev, head_list->buffer[0].address, - max(skb->len, - (unsigned int)TLAN_MIN_FRAME_SIZE), - 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; - - dev->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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int ) -{ - TLanPrivateInfo *priv = netdev_priv(dev); - u32 ack = 0; - int eoc = 0; - TLanList *head_list; - struct sk_buff *skb; - TLanList *tail_list; - 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)) { - dma_addr_t frameDma = head_list->buffer[0].address; - u32 frameSize = head_list->frameSize; - struct sk_buff *new_skb; - - ack++; - if (tmpCStat & TLAN_CSTAT_EOC) - eoc = 1; - - new_skb = netdev_alloc_skb_ip_align(dev, - TLAN_MAX_FRAME_SIZE + 5); - if ( !new_skb ) - goto drop_and_reuse; - - skb = TLan_GetSKB(head_list); - pci_unmap_single(priv->pciDev, frameDma, - TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); - skb_put( skb, frameSize ); - - dev->stats.rx_bytes += frameSize; - - skb->protocol = eth_type_trans( skb, dev ); - netif_rx( skb ); - - head_list->buffer[0].address = pci_map_single(priv->pciDev, - new_skb->data, - TLAN_MAX_FRAME_SIZE, - PCI_DMA_FROMDEVICE); - - TLan_StoreSKB(head_list, new_skb); -drop_and_reuse: - 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; - } - } - - 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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; - - priv->txHead = 0; - priv->txTail = 0; - for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { - list = priv->txList + i; - list->cStat = TLAN_CSTAT_UNUSED; - 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; - skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5); - if ( !skb ) { - pr_err("TLAN: out of memory for received data.\n" ); - break; - } - - list->buffer[0].address = pci_map_single(priv->pciDev, - skb->data, - TLAN_MAX_FRAME_SIZE, - PCI_DMA_FROMDEVICE); - TLan_StoreSKB(list, skb); - list->buffer[1].count = 0; - list->buffer[1].address = 0; - list->forward = list_phys + sizeof(TLanList); - } - - /* in case ran out of memory early, clear bits */ - while (i < TLAN_NUM_RX_LISTS) { - TLan_StoreSKB(priv->rxList + i, NULL); - ++i; - } - list->forward = 0; - -} /* TLan_ResetLists */ - - -static void TLan_FreeLists( struct net_device *dev ) -{ - TLanPrivateInfo *priv = netdev_priv(dev); - int i; - TLanList *list; - struct sk_buff *skb; - - 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, - max(skb->len, - (unsigned int)TLAN_MIN_FRAME_SIZE), - 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static void TLan_PrintList( TLanList *list, char *type, int num) -{ - int i; - - printk( "TLAN: %s List %d at %p\n", type, num, 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). - * - **************************************************************/ - -static void TLan_ReadAndClearStats( struct net_device *dev, int record ) -{ - 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 ) { - dev->stats.rx_packets += rx_good; - dev->stats.rx_errors += rx_over + crc + code; - dev->stats.tx_packets += tx_good; - dev->stats.tx_errors += tx_under + loss; - dev->stats.collisions += multi_col + single_col + excess_col + late_col; - - dev->stats.rx_over_errors += rx_over; - dev->stats.rx_crc_errors += crc; - dev->stats.rx_frame_errors += code; - - dev->stats.tx_aborted_errors += tx_under; - dev->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. - * - **************************************************************/ - -static 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 */ - - - - -static 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_SetMulticastList(dev); - -} /* 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. - * - **************************************************************/ - -static 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). - * - ********************************************************************/ - -static 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). - * - ********************************************************************/ - -static 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 */ - - - - -static 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 */ - - - - -static 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 */ - - - - -static 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 */ - - - - -static 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 */ - - - - -static 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++) { - pr_info("TLAN: Giving autonegotiation more time.\n"); - pr_info("TLAN: Please check that your adapter has\n"); - pr_info("TLAN: been properly connected to a HUB or Switch.\n"); - pr_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 ); - pr_info("TLAN: Starting internal PHY with FULL-DUPLEX\n" ); - } else { - TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB ); - pr_info( "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); - netif_carrier_off(dev); - 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); - netif_carrier_on(dev); - } - - /* 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 - * retrieved. - * val A pointer to a variable to store the - * retrieved value. - * - * This function uses the TLAN's MII bus to retrieve 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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. - * - **************************************************************/ - -static 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 ) { - /* STOP, raise data while clock is high */ - TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); - 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. - * - **************************************************************/ - -static 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 ); - /* STOP, raise data while clock is high */ - TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); - 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. - * - **************************************************************/ - -static 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 */ - - - |