| /******************************************************************************* |
| * |
| * Linux ThunderLAN Driver |
| * |
| * tlan.c |
| * by James Banks |
| * |
| * (C) 1997-1998 Caldera, Inc. |
| * (C) 1998 James Banks |
| * (C) 1999-2001 Torben Mathiasen |
| * (C) 2002 Samuel Chessman |
| * |
| * This software may be used and distributed according to the terms |
| * of the GNU General Public License, incorporated herein by reference. |
| * |
| ** This file is best viewed/edited with columns>=132. |
| * |
| ** Useful (if not required) reading: |
| * |
| * Texas Instruments, ThunderLAN Programmer's Guide, |
| * TI Literature Number SPWU013A |
| * available in PDF format from www.ti.com |
| * Level One, LXT901 and LXT970 Data Sheets |
| * available in PDF format from www.level1.com |
| * National Semiconductor, DP83840A Data Sheet |
| * available in PDF format from www.national.com |
| * Microchip Technology, 24C01A/02A/04A Data Sheet |
| * available in PDF format from www.microchip.com |
| * |
| * Change History |
| * |
| * Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses |
| * new PCI BIOS interface. |
| * Alan Cox <alan@redhat.com>: Fixed the out of memory |
| * handling. |
| * |
| * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer! |
| * |
| * v1.1 Dec 20, 1999 - Removed linux version checking |
| * Patch from Tigran Aivazian. |
| * - v1.1 includes Alan's SMP updates. |
| * - We still have problems on SMP though, |
| * but I'm looking into that. |
| * |
| * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock. |
| * - Removed dependency of HZ being 100. |
| * - We now allow higher priority timers to |
| * overwrite timers like TLAN_TIMER_ACTIVITY |
| * Patch from John Cagle <john.cagle@compaq.com>. |
| * - Fixed a few compiler warnings. |
| * |
| * v1.3 Feb 04, 2000 - Fixed the remaining HZ issues. |
| * - Removed call to pci_present(). |
| * - Removed SA_INTERRUPT flag from irq handler. |
| * - Added __init and __initdata to reduce resisdent |
| * code size. |
| * - Driver now uses module_init/module_exit. |
| * - Rewrote init_module and tlan_probe to |
| * share a lot more code. We now use tlan_probe |
| * with builtin and module driver. |
| * - Driver ported to new net API. |
| * - tlan.txt has been reworked to reflect current |
| * driver (almost) |
| * - Other minor stuff |
| * |
| * v1.4 Feb 10, 2000 - Updated with more changes required after Dave's |
| * network cleanup in 2.3.43pre7 (Tigran & myself) |
| * - Minor stuff. |
| * |
| * v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver |
| * if no cable/link were present. |
| * - Cosmetic changes. |
| * - TODO: Port completely to new PCI/DMA API |
| * Auto-Neg fallback. |
| * |
| * v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't |
| * tested it though, as the kernel support is currently |
| * broken (2.3.99p4p3). |
| * - Updated tlan.txt accordingly. |
| * - Adjusted minimum/maximum frame length. |
| * - There is now a TLAN website up at |
| * http://tlan.kernel.dk |
| * |
| * v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now |
| * reports PHY information when used with Donald |
| * Beckers userspace MII diagnostics utility. |
| * |
| * v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings. |
| * - Added link information to Auto-Neg and forced |
| * modes. When NIC operates with auto-neg the driver |
| * will report Link speed & duplex modes as well as |
| * link partner abilities. When forced link is used, |
| * the driver will report status of the established |
| * link. |
| * Please read tlan.txt for additional information. |
| * - Removed call to check_region(), and used |
| * return value of request_region() instead. |
| * |
| * v1.8a May 28, 2000 - Minor updates. |
| * |
| * v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues. |
| * - Updated with timer fixes from Andrew Morton. |
| * - Fixed module race in TLan_Open. |
| * - Added routine to monitor PHY status. |
| * - Added activity led support for Proliant devices. |
| * |
| * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers |
| * like the Compaq NetFlex3/E. |
| * - Rewrote tlan_probe to better handle multiple |
| * bus probes. Probing and device setup is now |
| * done through TLan_Probe and TLan_init_one. Actual |
| * hardware probe is done with kernel API and |
| * TLan_EisaProbe. |
| * - Adjusted debug information for probing. |
| * - Fixed bug that would cause general debug information |
| * to be printed after driver removal. |
| * - Added transmit timeout handling. |
| * - Fixed OOM return values in tlan_probe. |
| * - Fixed possible mem leak in tlan_exit |
| * (now tlan_remove_one). |
| * - Fixed timer bug in TLan_phyMonitor. |
| * - This driver version is alpha quality, please |
| * send me any bug issues you may encounter. |
| * |
| * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was |
| * set for EISA cards. |
| * - Added support for NetFlex3/E with nibble-rate |
| * 10Base-T PHY. This is untestet as I haven't got |
| * one of these cards. |
| * - Fixed timer being added twice. |
| * - Disabled PhyMonitoring by default as this is |
| * work in progress. Define MONITOR to enable it. |
| * - Now we don't display link info with PHYs that |
| * doesn't support it (level1). |
| * - Incresed tx_timeout beacuse of auto-neg. |
| * - Adjusted timers for forced speeds. |
| * |
| * v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.) |
| * |
| * v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues |
| * when link can't be established. |
| * - Added the bbuf option as a kernel parameter. |
| * - Fixed ioaddr probe bug. |
| * - Fixed stupid deadlock with MII interrupts. |
| * - Added support for speed/duplex selection with |
| * multiple nics. |
| * - Added partly fix for TX Channel lockup with |
| * TLAN v1.0 silicon. This needs to be investigated |
| * further. |
| * |
| * v1.14 Dec 16, 2000 - Added support for servicing multiple frames per. |
| * interrupt. Thanks goes to |
| * Adam Keys <adam@ti.com> |
| * Denis Beaudoin <dbeaudoin@ti.com> |
| * for providing the patch. |
| * - Fixed auto-neg output when using multiple |
| * adapters. |
| * - Converted to use new taskq interface. |
| * |
| * v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.) |
| * |
| * Samuel Chessman <chessman@tux.org> New Maintainer! |
| * |
| * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be |
| * 10T half duplex no loopback |
| * Thanks to Gunnar Eikman |
| *******************************************************************************/ |
| |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/ioport.h> |
| #include <linux/eisa.h> |
| #include <linux/pci.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/delay.h> |
| #include <linux/spinlock.h> |
| #include <linux/workqueue.h> |
| #include <linux/mii.h> |
| |
| #include "tlan.h" |
| |
| typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 ); |
| |
| |
| /* For removing EISA devices */ |
| static struct net_device *TLan_Eisa_Devices; |
| |
| static int TLanDevicesInstalled; |
| |
| /* Set speed, duplex and aui settings */ |
| static int aui[MAX_TLAN_BOARDS]; |
| static int duplex[MAX_TLAN_BOARDS]; |
| static int speed[MAX_TLAN_BOARDS]; |
| static int boards_found; |
| |
| MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>"); |
| MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters"); |
| MODULE_LICENSE("GPL"); |
| |
| |
| /* Define this to enable Link beat monitoring */ |
| #undef MONITOR |
| |
| /* Turn on debugging. See Documentation/networking/tlan.txt for details */ |
| static int debug; |
| |
| static int bbuf; |
| static u8 *TLanPadBuffer; |
| static dma_addr_t TLanPadBufferDMA; |
| static char TLanSignature[] = "TLAN"; |
| static const char tlan_banner[] = "ThunderLAN driver v1.15\n"; |
| static int tlan_have_pci; |
| static int tlan_have_eisa; |
| |
| static const char *media[] = { |
| "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ", |
| "100baseTx-FD", "100baseT4", NULL |
| }; |
| |
| static struct board { |
| const char *deviceLabel; |
| u32 flags; |
| u16 addrOfs; |
| } board_info[] = { |
| { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, |
| { "Compaq NetFlex-3/P", TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, |
| { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, |
| { "Compaq Netelligent Integrated 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 }, |
| { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 }, |
| { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 }, |
| { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 }, |
| { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 }, |
| { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, |
| { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 }, |
| { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */ |
| TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, |
| { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */ |
| }; |
| |
| static struct pci_device_id tlan_pci_tbl[] = { |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 }, |
| { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 }, |
| { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 }, |
| { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 }, |
| { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2, |
| PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 }, |
| { 0,} |
| }; |
| MODULE_DEVICE_TABLE(pci, tlan_pci_tbl); |
| |
| static void TLan_EisaProbe( void ); |
| static void TLan_Eisa_Cleanup( void ); |
| static int TLan_Init( struct net_device * ); |
| static int TLan_Open( struct net_device *dev ); |
| static int TLan_StartTx( struct sk_buff *, struct net_device *); |
| static irqreturn_t TLan_HandleInterrupt( int, void *, struct pt_regs *); |
| static int TLan_Close( struct net_device *); |
| static struct net_device_stats *TLan_GetStats( struct net_device *); |
| static void TLan_SetMulticastList( struct net_device *); |
| static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd); |
| static int TLan_probe1( struct pci_dev *pdev, long ioaddr, int irq, int rev, const struct pci_device_id *ent); |
| static void TLan_tx_timeout( struct net_device *dev); |
| static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent); |
| |
| static u32 TLan_HandleInvalid( struct net_device *, u16 ); |
| static u32 TLan_HandleTxEOF( struct net_device *, u16 ); |
| static u32 TLan_HandleStatOverflow( struct net_device *, u16 ); |
| static u32 TLan_HandleRxEOF( struct net_device *, u16 ); |
| static u32 TLan_HandleDummy( struct net_device *, u16 ); |
| static u32 TLan_HandleTxEOC( struct net_device *, u16 ); |
| static u32 TLan_HandleStatusCheck( struct net_device *, u16 ); |
| static u32 TLan_HandleRxEOC( struct net_device *, u16 ); |
| |
| static void TLan_Timer( unsigned long ); |
| |
| static void TLan_ResetLists( struct net_device * ); |
| static void TLan_FreeLists( struct net_device * ); |
| static void TLan_PrintDio( u16 ); |
| static void TLan_PrintList( TLanList *, char *, int ); |
| static void TLan_ReadAndClearStats( struct net_device *, int ); |
| static void TLan_ResetAdapter( struct net_device * ); |
| static void TLan_FinishReset( struct net_device * ); |
| static void TLan_SetMac( struct net_device *, int areg, char *mac ); |
| |
| static void TLan_PhyPrint( struct net_device * ); |
| static void TLan_PhyDetect( struct net_device * ); |
| static void TLan_PhyPowerDown( struct net_device * ); |
| static void TLan_PhyPowerUp( struct net_device * ); |
| static void TLan_PhyReset( struct net_device * ); |
| static void TLan_PhyStartLink( struct net_device * ); |
| static void TLan_PhyFinishAutoNeg( struct net_device * ); |
| #ifdef MONITOR |
| static void TLan_PhyMonitor( struct net_device * ); |
| #endif |
| |
| /* |
| static int TLan_PhyNop( struct net_device * ); |
| static int TLan_PhyInternalCheck( struct net_device * ); |
| static int TLan_PhyInternalService( struct net_device * ); |
| static int TLan_PhyDp83840aCheck( struct net_device * ); |
| */ |
| |
| static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * ); |
| static void TLan_MiiSendData( u16, u32, unsigned ); |
| static void TLan_MiiSync( u16 ); |
| static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 ); |
| |
| static void TLan_EeSendStart( u16 ); |
| static int TLan_EeSendByte( u16, u8, int ); |
| static void TLan_EeReceiveByte( u16, u8 *, int ); |
| static int TLan_EeReadByte( struct net_device *, u8, u8 * ); |
| |
| |
| static void |
| TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb) |
| { |
| unsigned long addr = (unsigned long)skb; |
| tag->buffer[9].address = (u32)addr; |
| addr >>= 31; /* >>= 32 is undefined for 32bit arch, stupid C */ |
| addr >>= 1; |
| tag->buffer[8].address = (u32)addr; |
| } |
| |
| static struct sk_buff * |
| TLan_GetSKB( struct tlan_list_tag *tag) |
| { |
| unsigned long addr = tag->buffer[8].address; |
| addr <<= 31; |
| addr <<= 1; |
| addr |= tag->buffer[9].address; |
| return (struct sk_buff *) addr; |
| } |
| |
| |
| static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = { |
| TLan_HandleInvalid, |
| TLan_HandleTxEOF, |
| TLan_HandleStatOverflow, |
| TLan_HandleRxEOF, |
| TLan_HandleDummy, |
| TLan_HandleTxEOC, |
| TLan_HandleStatusCheck, |
| TLan_HandleRxEOC |
| }; |
| |
| static inline void |
| TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| unsigned long flags = 0; |
| |
| if (!in_irq()) |
| spin_lock_irqsave(&priv->lock, flags); |
| if ( priv->timer.function != NULL && |
| priv->timerType != TLAN_TIMER_ACTIVITY ) { |
| if (!in_irq()) |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return; |
| } |
| priv->timer.function = &TLan_Timer; |
| if (!in_irq()) |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| priv->timer.data = (unsigned long) dev; |
| priv->timerSetAt = jiffies; |
| priv->timerType = type; |
| mod_timer(&priv->timer, jiffies + ticks); |
| |
| } /* TLan_SetTimer */ |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver Primary Functions |
| |
| These functions are more or less common to all Linux network drivers. |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| |
| |
| |
| /*************************************************************** |
| * tlan_remove_one |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * None |
| * |
| * Goes through the TLanDevices list and frees the device |
| * structs and memory associated with each device (lists |
| * and buffers). It also ureserves the IO port regions |
| * associated with this device. |
| * |
| **************************************************************/ |
| |
| |
| static void __devexit tlan_remove_one( struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata( pdev ); |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| |
| unregister_netdev( dev ); |
| |
| if ( priv->dmaStorage ) { |
| pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA ); |
| } |
| |
| #ifdef CONFIG_PCI |
| pci_release_regions(pdev); |
| #endif |
| |
| free_netdev( dev ); |
| |
| pci_set_drvdata( pdev, NULL ); |
| } |
| |
| static struct pci_driver tlan_driver = { |
| .name = "tlan", |
| .id_table = tlan_pci_tbl, |
| .probe = tlan_init_one, |
| .remove = __devexit_p(tlan_remove_one), |
| }; |
| |
| static int __init tlan_probe(void) |
| { |
| static int pad_allocated; |
| |
| printk(KERN_INFO "%s", tlan_banner); |
| |
| TLanPadBuffer = (u8 *) pci_alloc_consistent(NULL, TLAN_MIN_FRAME_SIZE, &TLanPadBufferDMA); |
| |
| if (TLanPadBuffer == NULL) { |
| printk(KERN_ERR "TLAN: Could not allocate memory for pad buffer.\n"); |
| return -ENOMEM; |
| } |
| |
| memset(TLanPadBuffer, 0, TLAN_MIN_FRAME_SIZE); |
| pad_allocated = 1; |
| |
| TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n"); |
| |
| /* Use new style PCI probing. Now the kernel will |
| do most of this for us */ |
| pci_register_driver(&tlan_driver); |
| |
| TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n"); |
| TLan_EisaProbe(); |
| |
| printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n", |
| TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s", |
| tlan_have_pci, tlan_have_eisa); |
| |
| if (TLanDevicesInstalled == 0) { |
| pci_unregister_driver(&tlan_driver); |
| pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA); |
| return -ENODEV; |
| } |
| return 0; |
| } |
| |
| |
| static int __devinit tlan_init_one( struct pci_dev *pdev, |
| const struct pci_device_id *ent) |
| { |
| return TLan_probe1( pdev, -1, -1, 0, ent); |
| } |
| |
| |
| /* |
| *************************************************************** |
| * tlan_probe1 |
| * |
| * Returns: |
| * 0 on success, error code on error |
| * Parms: |
| * none |
| * |
| * The name is lower case to fit in with all the rest of |
| * the netcard_probe names. This function looks for |
| * another TLan based adapter, setting it up with the |
| * allocated device struct if one is found. |
| * tlan_probe has been ported to the new net API and |
| * now allocates its own device structure. This function |
| * is also used by modules. |
| * |
| **************************************************************/ |
| |
| static int __devinit TLan_probe1(struct pci_dev *pdev, |
| long ioaddr, int irq, int rev, const struct pci_device_id *ent ) |
| { |
| |
| struct net_device *dev; |
| TLanPrivateInfo *priv; |
| u8 pci_rev; |
| u16 device_id; |
| int reg, rc = -ENODEV; |
| |
| if (pdev) { |
| rc = pci_enable_device(pdev); |
| if (rc) |
| return rc; |
| |
| rc = pci_request_regions(pdev, TLanSignature); |
| if (rc) { |
| printk(KERN_ERR "TLAN: Could not reserve IO regions\n"); |
| goto err_out; |
| } |
| } |
| |
| dev = alloc_etherdev(sizeof(TLanPrivateInfo)); |
| if (dev == NULL) { |
| printk(KERN_ERR "TLAN: Could not allocate memory for device.\n"); |
| rc = -ENOMEM; |
| goto err_out_regions; |
| } |
| SET_MODULE_OWNER(dev); |
| SET_NETDEV_DEV(dev, &pdev->dev); |
| |
| priv = netdev_priv(dev); |
| |
| priv->pciDev = pdev; |
| |
| /* Is this a PCI device? */ |
| if (pdev) { |
| u32 pci_io_base = 0; |
| |
| priv->adapter = &board_info[ent->driver_data]; |
| |
| rc = pci_set_dma_mask(pdev, 0xFFFFFFFF); |
| if (rc) { |
| printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n"); |
| goto err_out_free_dev; |
| } |
| |
| pci_read_config_byte ( pdev, PCI_REVISION_ID, &pci_rev); |
| |
| for ( reg= 0; reg <= 5; reg ++ ) { |
| if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) { |
| pci_io_base = pci_resource_start(pdev, reg); |
| TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n", |
| pci_io_base); |
| break; |
| } |
| } |
| if (!pci_io_base) { |
| printk(KERN_ERR "TLAN: No IO mappings available\n"); |
| rc = -EIO; |
| goto err_out_free_dev; |
| } |
| |
| dev->base_addr = pci_io_base; |
| dev->irq = pdev->irq; |
| priv->adapterRev = pci_rev; |
| pci_set_master(pdev); |
| pci_set_drvdata(pdev, dev); |
| |
| } else { /* EISA card */ |
| /* This is a hack. We need to know which board structure |
| * is suited for this adapter */ |
| device_id = inw(ioaddr + EISA_ID2); |
| priv->is_eisa = 1; |
| if (device_id == 0x20F1) { |
| priv->adapter = &board_info[13]; /* NetFlex-3/E */ |
| priv->adapterRev = 23; /* TLAN 2.3 */ |
| } else { |
| priv->adapter = &board_info[14]; |
| priv->adapterRev = 10; /* TLAN 1.0 */ |
| } |
| dev->base_addr = ioaddr; |
| dev->irq = irq; |
| } |
| |
| /* Kernel parameters */ |
| if (dev->mem_start) { |
| priv->aui = dev->mem_start & 0x01; |
| priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 : (dev->mem_start & 0x06) >> 1; |
| priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 : (dev->mem_start & 0x18) >> 3; |
| |
| if (priv->speed == 0x1) { |
| priv->speed = TLAN_SPEED_10; |
| } else if (priv->speed == 0x2) { |
| priv->speed = TLAN_SPEED_100; |
| } |
| debug = priv->debug = dev->mem_end; |
| } else { |
| priv->aui = aui[boards_found]; |
| priv->speed = speed[boards_found]; |
| priv->duplex = duplex[boards_found]; |
| priv->debug = debug; |
| } |
| |
| /* This will be used when we get an adapter error from |
| * within our irq handler */ |
| INIT_WORK(&priv->tlan_tqueue, (void *)(void*)TLan_tx_timeout, dev); |
| |
| spin_lock_init(&priv->lock); |
| |
| rc = TLan_Init(dev); |
| if (rc) { |
| printk(KERN_ERR "TLAN: Could not set up device.\n"); |
| goto err_out_free_dev; |
| } |
| |
| rc = register_netdev(dev); |
| if (rc) { |
| printk(KERN_ERR "TLAN: Could not register device.\n"); |
| goto err_out_uninit; |
| } |
| |
| |
| TLanDevicesInstalled++; |
| boards_found++; |
| |
| /* pdev is NULL if this is an EISA device */ |
| if (pdev) |
| tlan_have_pci++; |
| else { |
| priv->nextDevice = TLan_Eisa_Devices; |
| TLan_Eisa_Devices = dev; |
| tlan_have_eisa++; |
| } |
| |
| printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n", |
| dev->name, |
| (int) dev->irq, |
| (int) dev->base_addr, |
| priv->adapter->deviceLabel, |
| priv->adapterRev); |
| return 0; |
| |
| err_out_uninit: |
| pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, |
| priv->dmaStorageDMA ); |
| err_out_free_dev: |
| free_netdev(dev); |
| err_out_regions: |
| #ifdef CONFIG_PCI |
| if (pdev) |
| pci_release_regions(pdev); |
| #endif |
| err_out: |
| if (pdev) |
| pci_disable_device(pdev); |
| return rc; |
| } |
| |
| |
| static void TLan_Eisa_Cleanup(void) |
| { |
| struct net_device *dev; |
| TLanPrivateInfo *priv; |
| |
| while( tlan_have_eisa ) { |
| dev = TLan_Eisa_Devices; |
| priv = netdev_priv(dev); |
| if (priv->dmaStorage) { |
| pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA ); |
| } |
| release_region( dev->base_addr, 0x10); |
| unregister_netdev( dev ); |
| TLan_Eisa_Devices = priv->nextDevice; |
| free_netdev( dev ); |
| tlan_have_eisa--; |
| } |
| } |
| |
| |
| static void __exit tlan_exit(void) |
| { |
| pci_unregister_driver(&tlan_driver); |
| |
| if (tlan_have_eisa) |
| TLan_Eisa_Cleanup(); |
| |
| pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA); |
| |
| } |
| |
| |
| /* Module loading/unloading */ |
| module_init(tlan_probe); |
| module_exit(tlan_exit); |
| |
| |
| |
| /************************************************************** |
| * TLan_EisaProbe |
| * |
| * Returns: 0 on success, 1 otherwise |
| * |
| * Parms: None |
| * |
| * |
| * This functions probes for EISA devices and calls |
| * TLan_probe1 when one is found. |
| * |
| *************************************************************/ |
| |
| static void __init TLan_EisaProbe (void) |
| { |
| long ioaddr; |
| int rc = -ENODEV; |
| int irq; |
| u16 device_id; |
| |
| if (!EISA_bus) { |
| TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n"); |
| return; |
| } |
| |
| /* Loop through all slots of the EISA bus */ |
| for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { |
| |
| TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID)); |
| TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2)); |
| |
| |
| TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ", |
| (int) ioaddr); |
| if (request_region(ioaddr, 0x10, TLanSignature) == NULL) |
| goto out; |
| |
| if (inw(ioaddr + EISA_ID) != 0x110E) { |
| release_region(ioaddr, 0x10); |
| goto out; |
| } |
| |
| device_id = inw(ioaddr + EISA_ID2); |
| if (device_id != 0x20F1 && device_id != 0x40F1) { |
| release_region (ioaddr, 0x10); |
| goto out; |
| } |
| |
| if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */ |
| release_region (ioaddr, 0x10); |
| goto out2; |
| } |
| |
| if (debug == 0x10) |
| printk("Found one\n"); |
| |
| |
| /* Get irq from board */ |
| switch (inb(ioaddr + 0xCC0)) { |
| case(0x10): |
| irq=5; |
| break; |
| case(0x20): |
| irq=9; |
| break; |
| case(0x40): |
| irq=10; |
| break; |
| case(0x80): |
| irq=11; |
| break; |
| default: |
| goto out; |
| } |
| |
| |
| /* Setup the newly found eisa adapter */ |
| rc = TLan_probe1( NULL, ioaddr, irq, |
| 12, NULL); |
| continue; |
| |
| out: |
| if (debug == 0x10) |
| printk("None found\n"); |
| continue; |
| |
| out2: if (debug == 0x10) |
| printk("Card found but it is not enabled, skipping\n"); |
| continue; |
| |
| } |
| |
| } /* TLan_EisaProbe */ |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void TLan_Poll(struct net_device *dev) |
| { |
| disable_irq(dev->irq); |
| TLan_HandleInterrupt(dev->irq, dev, NULL); |
| enable_irq(dev->irq); |
| } |
| #endif |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_Init |
| * |
| * Returns: |
| * 0 on success, error code otherwise. |
| * Parms: |
| * dev The structure of the device to be |
| * init'ed. |
| * |
| * This function completes the initialization of the |
| * device structure and driver. It reserves the IO |
| * addresses, allocates memory for the lists and bounce |
| * buffers, retrieves the MAC address from the eeprom |
| * and assignes the device's methods. |
| * |
| **************************************************************/ |
| |
| static int TLan_Init( struct net_device *dev ) |
| { |
| int dma_size; |
| int err; |
| int i; |
| TLanPrivateInfo *priv; |
| |
| priv = netdev_priv(dev); |
| |
| if ( bbuf ) { |
| dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) |
| * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE ); |
| } else { |
| dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) |
| * ( sizeof(TLanList) ); |
| } |
| priv->dmaStorage = pci_alloc_consistent(priv->pciDev, dma_size, &priv->dmaStorageDMA); |
| priv->dmaSize = dma_size; |
| |
| if ( priv->dmaStorage == NULL ) { |
| printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n", |
| dev->name ); |
| return -ENOMEM; |
| } |
| memset( priv->dmaStorage, 0, dma_size ); |
| priv->rxList = (TLanList *) |
| ( ( ( (u32) priv->dmaStorage ) + 7 ) & 0xFFFFFFF8 ); |
| priv->rxListDMA = ( ( ( (u32) priv->dmaStorageDMA ) + 7 ) & 0xFFFFFFF8 ); |
| priv->txList = priv->rxList + TLAN_NUM_RX_LISTS; |
| priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS; |
| if ( bbuf ) { |
| priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS ); |
| priv->rxBufferDMA =priv->txListDMA + sizeof(TLanList) * TLAN_NUM_TX_LISTS; |
| priv->txBuffer = priv->rxBuffer + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); |
| priv->txBufferDMA = priv->rxBufferDMA + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); |
| } |
| |
| err = 0; |
| for ( i = 0; i < 6 ; i++ ) |
| err |= TLan_EeReadByte( dev, |
| (u8) priv->adapter->addrOfs + i, |
| (u8 *) &dev->dev_addr[i] ); |
| if ( err ) { |
| printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n", |
| dev->name, |
| err ); |
| } |
| dev->addr_len = 6; |
| |
| netif_carrier_off(dev); |
| |
| /* Device methods */ |
| dev->open = &TLan_Open; |
| dev->hard_start_xmit = &TLan_StartTx; |
| dev->stop = &TLan_Close; |
| dev->get_stats = &TLan_GetStats; |
| dev->set_multicast_list = &TLan_SetMulticastList; |
| dev->do_ioctl = &TLan_ioctl; |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| dev->poll_controller = &TLan_Poll; |
| #endif |
| dev->tx_timeout = &TLan_tx_timeout; |
| dev->watchdog_timeo = TX_TIMEOUT; |
| |
| return 0; |
| |
| } /* TLan_Init */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_Open |
| * |
| * Returns: |
| * 0 on success, error code otherwise. |
| * Parms: |
| * dev Structure of device to be opened. |
| * |
| * This routine puts the driver and TLAN adapter in a |
| * state where it is ready to send and receive packets. |
| * It allocates the IRQ, resets and brings the adapter |
| * out of reset, and allows interrupts. It also delays |
| * the startup for autonegotiation or sends a Rx GO |
| * command to the adapter, as appropriate. |
| * |
| **************************************************************/ |
| |
| static int TLan_Open( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| int err; |
| |
| priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION ); |
| err = request_irq( dev->irq, TLan_HandleInterrupt, SA_SHIRQ, TLanSignature, dev ); |
| |
| if ( err ) { |
| printk(KERN_ERR "TLAN: Cannot open %s because IRQ %d is already in use.\n", dev->name, dev->irq ); |
| return err; |
| } |
| |
| init_timer(&priv->timer); |
| netif_start_queue(dev); |
| |
| /* NOTE: It might not be necessary to read the stats before a |
| reset if you don't care what the values are. |
| */ |
| TLan_ResetLists( dev ); |
| TLan_ReadAndClearStats( dev, TLAN_IGNORE ); |
| TLan_ResetAdapter( dev ); |
| |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", dev->name, priv->tlanRev ); |
| |
| return 0; |
| |
| } /* TLan_Open */ |
| |
| |
| |
| /************************************************************** |
| * TLan_ioctl |
| * |
| * Returns: |
| * 0 on success, error code otherwise |
| * Params: |
| * dev structure of device to receive ioctl. |
| * |
| * rq ifreq structure to hold userspace data. |
| * |
| * cmd ioctl command. |
| * |
| * |
| *************************************************************/ |
| |
| static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| struct mii_ioctl_data *data = if_mii(rq); |
| u32 phy = priv->phy[priv->phyNum]; |
| |
| if (!priv->phyOnline) |
| return -EAGAIN; |
| |
| switch(cmd) { |
| case SIOCGMIIPHY: /* Get address of MII PHY in use. */ |
| data->phy_id = phy; |
| |
| |
| case SIOCGMIIREG: /* Read MII PHY register. */ |
| TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out); |
| return 0; |
| |
| |
| case SIOCSMIIREG: /* Write MII PHY register. */ |
| if (!capable(CAP_NET_ADMIN)) |
| return -EPERM; |
| TLan_MiiWriteReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in); |
| return 0; |
| default: |
| return -EOPNOTSUPP; |
| } |
| } /* tlan_ioctl */ |
| |
| |
| /*************************************************************** |
| * TLan_tx_timeout |
| * |
| * Returns: nothing |
| * |
| * Params: |
| * dev structure of device which timed out |
| * during transmit. |
| * |
| **************************************************************/ |
| |
| static void TLan_tx_timeout(struct net_device *dev) |
| { |
| |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name); |
| |
| /* Ok so we timed out, lets see what we can do about it...*/ |
| TLan_FreeLists( dev ); |
| TLan_ResetLists( dev ); |
| TLan_ReadAndClearStats( dev, TLAN_IGNORE ); |
| TLan_ResetAdapter( dev ); |
| dev->trans_start = jiffies; |
| netif_wake_queue( dev ); |
| |
| } |
| |
| |
| |
| /*************************************************************** |
| * TLan_StartTx |
| * |
| * Returns: |
| * 0 on success, non-zero on failure. |
| * Parms: |
| * skb A pointer to the sk_buff containing the |
| * frame to be sent. |
| * dev The device to send the data on. |
| * |
| * This function adds a frame to the Tx list to be sent |
| * ASAP. First it verifies that the adapter is ready and |
| * there is room in the queue. Then it sets up the next |
| * available list, copies the frame to the corresponding |
| * buffer. If the adapter Tx channel is idle, it gives |
| * the adapter a Tx Go command on the list, otherwise it |
| * sets the forward address of the previous list to point |
| * to this one. Then it frees the sk_buff. |
| * |
| **************************************************************/ |
| |
| static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| TLanList *tail_list; |
| dma_addr_t tail_list_phys; |
| u8 *tail_buffer; |
| int pad; |
| unsigned long flags; |
| |
| if ( ! priv->phyOnline ) { |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", dev->name ); |
| dev_kfree_skb_any(skb); |
| return 0; |
| } |
| |
| tail_list = priv->txList + priv->txTail; |
| tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail; |
| |
| if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) { |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", dev->name, priv->txHead, priv->txTail ); |
| netif_stop_queue(dev); |
| priv->txBusyCount++; |
| return 1; |
| } |
| |
| tail_list->forward = 0; |
| |
| if ( bbuf ) { |
| tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE ); |
| memcpy( tail_buffer, skb->data, skb->len ); |
| } else { |
| tail_list->buffer[0].address = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE); |
| TLan_StoreSKB(tail_list, skb); |
| } |
| |
| pad = TLAN_MIN_FRAME_SIZE - skb->len; |
| |
| if ( pad > 0 ) { |
| tail_list->frameSize = (u16) skb->len + pad; |
| tail_list->buffer[0].count = (u32) skb->len; |
| tail_list->buffer[1].count = TLAN_LAST_BUFFER | (u32) pad; |
| tail_list->buffer[1].address = TLanPadBufferDMA; |
| } else { |
| tail_list->frameSize = (u16) skb->len; |
| tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len; |
| tail_list->buffer[1].count = 0; |
| tail_list->buffer[1].address = 0; |
| } |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| tail_list->cStat = TLAN_CSTAT_READY; |
| if ( ! priv->txInProgress ) { |
| priv->txInProgress = 1; |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Starting TX on buffer %d\n", priv->txTail ); |
| outl( tail_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD ); |
| } else { |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channel\n", priv->txTail ); |
| if ( priv->txTail == 0 ) { |
| ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = tail_list_phys; |
| } else { |
| ( priv->txList + ( priv->txTail - 1 ) )->forward = tail_list_phys; |
| } |
| } |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS ); |
| |
| if ( bbuf ) |
| dev_kfree_skb_any(skb); |
| |
| dev->trans_start = jiffies; |
| return 0; |
| |
| } /* TLan_StartTx */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleInterrupt |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * irq The line on which the interrupt |
| * occurred. |
| * dev_id A pointer to the device assigned to |
| * this irq line. |
| * regs ??? |
| * |
| * This function handles an interrupt generated by its |
| * assigned TLAN adapter. The function deactivates |
| * interrupts on its adapter, records the type of |
| * interrupt, executes the appropriate subhandler, and |
| * acknowdges the interrupt to the adapter (thus |
| * re-enabling adapter interrupts. |
| * |
| **************************************************************/ |
| |
| static irqreturn_t TLan_HandleInterrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| u32 ack; |
| struct net_device *dev; |
| u32 host_cmd; |
| u16 host_int; |
| int type; |
| TLanPrivateInfo *priv; |
| |
| dev = dev_id; |
| priv = netdev_priv(dev); |
| |
| spin_lock(&priv->lock); |
| |
| host_int = inw( dev->base_addr + TLAN_HOST_INT ); |
| outw( host_int, dev->base_addr + TLAN_HOST_INT ); |
| |
| type = ( host_int & TLAN_HI_IT_MASK ) >> 2; |
| |
| ack = TLanIntVector[type]( dev, host_int ); |
| |
| if ( ack ) { |
| host_cmd = TLAN_HC_ACK | ack | ( type << 18 ); |
| outl( host_cmd, dev->base_addr + TLAN_HOST_CMD ); |
| } |
| |
| spin_unlock(&priv->lock); |
| |
| return IRQ_HANDLED; |
| } /* TLan_HandleInterrupts */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_Close |
| * |
| * Returns: |
| * An error code. |
| * Parms: |
| * dev The device structure of the device to |
| * close. |
| * |
| * This function shuts down the adapter. It records any |
| * stats, puts the adapter into reset state, deactivates |
| * its time as needed, and frees the irq it is using. |
| * |
| **************************************************************/ |
| |
| static int TLan_Close(struct net_device *dev) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| |
| netif_stop_queue(dev); |
| priv->neg_be_verbose = 0; |
| |
| TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); |
| if ( priv->timer.function != NULL ) { |
| del_timer_sync( &priv->timer ); |
| priv->timer.function = NULL; |
| } |
| |
| free_irq( dev->irq, dev ); |
| TLan_FreeLists( dev ); |
| TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name ); |
| |
| return 0; |
| |
| } /* TLan_Close */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_GetStats |
| * |
| * Returns: |
| * A pointer to the device's statistics structure. |
| * Parms: |
| * dev The device structure to return the |
| * stats for. |
| * |
| * This function updates the devices statistics by reading |
| * the TLAN chip's onboard registers. Then it returns the |
| * address of the statistics structure. |
| * |
| **************************************************************/ |
| |
| static struct net_device_stats *TLan_GetStats( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| int i; |
| |
| /* Should only read stats if open ? */ |
| TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| |
| TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, priv->rxEocCount ); |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, priv->txBusyCount ); |
| if ( debug & TLAN_DEBUG_GNRL ) { |
| TLan_PrintDio( dev->base_addr ); |
| TLan_PhyPrint( dev ); |
| } |
| if ( debug & TLAN_DEBUG_LIST ) { |
| for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) |
| TLan_PrintList( priv->rxList + i, "RX", i ); |
| for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) |
| TLan_PrintList( priv->txList + i, "TX", i ); |
| } |
| |
| return ( &( (TLanPrivateInfo *) netdev_priv(dev) )->stats ); |
| |
| } /* TLan_GetStats */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_SetMulticastList |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev The device structure to set the |
| * multicast list for. |
| * |
| * This function sets the TLAN adaptor to various receive |
| * modes. If the IFF_PROMISC flag is set, promiscuous |
| * mode is acitviated. Otherwise, promiscuous mode is |
| * turned off. If the IFF_ALLMULTI flag is set, then |
| * the hash table is set to receive all group addresses. |
| * Otherwise, the first three multicast addresses are |
| * stored in AREG_1-3, and the rest are selected via the |
| * hash table, as necessary. |
| * |
| **************************************************************/ |
| |
| static void TLan_SetMulticastList( struct net_device *dev ) |
| { |
| struct dev_mc_list *dmi = dev->mc_list; |
| u32 hash1 = 0; |
| u32 hash2 = 0; |
| int i; |
| u32 offset; |
| u8 tmp; |
| |
| if ( dev->flags & IFF_PROMISC ) { |
| tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD ); |
| TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF ); |
| } else { |
| tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD ); |
| TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF ); |
| if ( dev->flags & IFF_ALLMULTI ) { |
| for ( i = 0; i < 3; i++ ) |
| TLan_SetMac( dev, i + 1, NULL ); |
| TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF ); |
| TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF ); |
| } else { |
| for ( i = 0; i < dev->mc_count; i++ ) { |
| if ( i < 3 ) { |
| TLan_SetMac( dev, i + 1, (char *) &dmi->dmi_addr ); |
| } else { |
| offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr ); |
| if ( offset < 32 ) |
| hash1 |= ( 1 << offset ); |
| else |
| hash2 |= ( 1 << ( offset - 32 ) ); |
| } |
| dmi = dmi->next; |
| } |
| for ( ; i < 3; i++ ) |
| TLan_SetMac( dev, i + 1, NULL ); |
| TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 ); |
| TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 ); |
| } |
| } |
| |
| } /* TLan_SetMulticastList */ |
| |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver Interrupt Vectors and Table |
| |
| Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN |
| Programmer's Guide" for more informations on handling interrupts |
| generated by TLAN based adapters. |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| /*************************************************************** |
| * TLan_HandleInvalid |
| * |
| * Returns: |
| * 0 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This function handles invalid interrupts. This should |
| * never happen unless some other adapter is trying to use |
| * the IRQ line assigned to the device. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleInvalid( struct net_device *dev, u16 host_int ) |
| { |
| /* printk( "TLAN: Invalid interrupt on %s.\n", dev->name ); */ |
| return 0; |
| |
| } /* TLan_HandleInvalid */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleTxEOF |
| * |
| * Returns: |
| * 1 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This function handles Tx EOF interrupts which are raised |
| * by the adapter when it has completed sending the |
| * contents of a buffer. If detemines which list/buffer |
| * was completed and resets it. If the buffer was the last |
| * in the channel (EOC), then the function checks to see if |
| * another buffer is ready to send, and if so, sends a Tx |
| * Go command. Finally, the driver activates/continues the |
| * activity LED. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| int eoc = 0; |
| TLanList *head_list; |
| dma_addr_t head_list_phys; |
| u32 ack = 0; |
| u16 tmpCStat; |
| |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", priv->txHead, priv->txTail ); |
| head_list = priv->txList + priv->txHead; |
| |
| while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { |
| ack++; |
| if ( ! bbuf ) { |
| struct sk_buff *skb = TLan_GetSKB(head_list); |
| pci_unmap_single(priv->pciDev, head_list->buffer[0].address, skb->len, PCI_DMA_TODEVICE); |
| dev_kfree_skb_any(skb); |
| head_list->buffer[8].address = 0; |
| head_list->buffer[9].address = 0; |
| } |
| |
| if ( tmpCStat & TLAN_CSTAT_EOC ) |
| eoc = 1; |
| |
| priv->stats.tx_bytes += head_list->frameSize; |
| |
| head_list->cStat = TLAN_CSTAT_UNUSED; |
| netif_start_queue(dev); |
| CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS ); |
| head_list = priv->txList + priv->txHead; |
| } |
| |
| if (!ack) |
| printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n"); |
| |
| if ( eoc ) { |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n", priv->txHead, priv->txTail ); |
| head_list = priv->txList + priv->txHead; |
| head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; |
| if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { |
| outl(head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| ack |= TLAN_HC_GO; |
| } else { |
| priv->txInProgress = 0; |
| } |
| } |
| |
| if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) { |
| TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT ); |
| if ( priv->timer.function == NULL ) { |
| priv->timer.function = &TLan_Timer; |
| priv->timer.data = (unsigned long) dev; |
| priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; |
| priv->timerSetAt = jiffies; |
| priv->timerType = TLAN_TIMER_ACTIVITY; |
| add_timer(&priv->timer); |
| } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) { |
| priv->timerSetAt = jiffies; |
| } |
| } |
| |
| return ack; |
| |
| } /* TLan_HandleTxEOF */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleStatOverflow |
| * |
| * Returns: |
| * 1 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This function handles the Statistics Overflow interrupt |
| * which means that one or more of the TLAN statistics |
| * registers has reached 1/2 capacity and needs to be read. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int ) |
| { |
| TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| |
| return 1; |
| |
| } /* TLan_HandleStatOverflow */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleRxEOF |
| * |
| * Returns: |
| * 1 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This function handles the Rx EOF interrupt which |
| * indicates a frame has been received by the adapter from |
| * the net and the frame has been transferred to memory. |
| * The function determines the bounce buffer the frame has |
| * been loaded into, creates a new sk_buff big enough to |
| * hold the frame, and sends it to protocol stack. It |
| * then resets the used buffer and appends it to the end |
| * of the list. If the frame was the last in the Rx |
| * channel (EOC), the function restarts the receive channel |
| * by sending an Rx Go command to the adapter. Then it |
| * activates/continues the activity LED. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u32 ack = 0; |
| int eoc = 0; |
| u8 *head_buffer; |
| TLanList *head_list; |
| struct sk_buff *skb; |
| TLanList *tail_list; |
| void *t; |
| u32 frameSize; |
| u16 tmpCStat; |
| dma_addr_t head_list_phys; |
| |
| TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail ); |
| head_list = priv->rxList + priv->rxHead; |
| head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| |
| while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { |
| frameSize = head_list->frameSize; |
| ack++; |
| if (tmpCStat & TLAN_CSTAT_EOC) |
| eoc = 1; |
| |
| if (bbuf) { |
| skb = dev_alloc_skb(frameSize + 7); |
| if (skb == NULL) |
| printk(KERN_INFO "TLAN: Couldn't allocate memory for received data.\n"); |
| else { |
| head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE); |
| skb->dev = dev; |
| skb_reserve(skb, 2); |
| t = (void *) skb_put(skb, frameSize); |
| |
| priv->stats.rx_bytes += head_list->frameSize; |
| |
| memcpy( t, head_buffer, frameSize ); |
| skb->protocol = eth_type_trans( skb, dev ); |
| netif_rx( skb ); |
| } |
| } else { |
| struct sk_buff *new_skb; |
| |
| /* |
| * I changed the algorithm here. What we now do |
| * is allocate the new frame. If this fails we |
| * simply recycle the frame. |
| */ |
| |
| new_skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 ); |
| |
| if ( new_skb != NULL ) { |
| skb = TLan_GetSKB(head_list); |
| pci_unmap_single(priv->pciDev, head_list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
| skb_trim( skb, frameSize ); |
| |
| priv->stats.rx_bytes += frameSize; |
| |
| skb->protocol = eth_type_trans( skb, dev ); |
| netif_rx( skb ); |
| |
| new_skb->dev = dev; |
| skb_reserve( new_skb, 2 ); |
| t = (void *) skb_put( new_skb, TLAN_MAX_FRAME_SIZE ); |
| head_list->buffer[0].address = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
| head_list->buffer[8].address = (u32) t; |
| TLan_StoreSKB(head_list, new_skb); |
| } else |
| printk(KERN_WARNING "TLAN: Couldn't allocate memory for received data.\n" ); |
| } |
| |
| head_list->forward = 0; |
| head_list->cStat = 0; |
| tail_list = priv->rxList + priv->rxTail; |
| tail_list->forward = head_list_phys; |
| |
| CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS ); |
| CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS ); |
| head_list = priv->rxList + priv->rxHead; |
| head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| } |
| |
| if (!ack) |
| printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n"); |
| |
| |
| |
| |
| if ( eoc ) { |
| TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail ); |
| head_list = priv->rxList + priv->rxHead; |
| head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| outl(head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| ack |= TLAN_HC_GO | TLAN_HC_RT; |
| priv->rxEocCount++; |
| } |
| |
| if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) { |
| TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT ); |
| if ( priv->timer.function == NULL ) { |
| priv->timer.function = &TLan_Timer; |
| priv->timer.data = (unsigned long) dev; |
| priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; |
| priv->timerSetAt = jiffies; |
| priv->timerType = TLAN_TIMER_ACTIVITY; |
| add_timer(&priv->timer); |
| } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) { |
| priv->timerSetAt = jiffies; |
| } |
| } |
| |
| dev->last_rx = jiffies; |
| |
| return ack; |
| |
| } /* TLan_HandleRxEOF */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleDummy |
| * |
| * Returns: |
| * 1 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This function handles the Dummy interrupt, which is |
| * raised whenever a test interrupt is generated by setting |
| * the Req_Int bit of HOST_CMD to 1. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleDummy( struct net_device *dev, u16 host_int ) |
| { |
| printk( "TLAN: Test interrupt on %s.\n", dev->name ); |
| return 1; |
| |
| } /* TLan_HandleDummy */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleTxEOC |
| * |
| * Returns: |
| * 1 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This driver is structured to determine EOC occurrences by |
| * reading the CSTAT member of the list structure. Tx EOC |
| * interrupts are disabled via the DIO INTDIS register. |
| * However, TLAN chips before revision 3.0 didn't have this |
| * functionality, so process EOC events if this is the |
| * case. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| TLanList *head_list; |
| dma_addr_t head_list_phys; |
| u32 ack = 1; |
| |
| host_int = 0; |
| if ( priv->tlanRev < 0x30 ) { |
| TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", priv->txHead, priv->txTail ); |
| head_list = priv->txList + priv->txHead; |
| head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; |
| if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { |
| netif_stop_queue(dev); |
| outl( head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| ack |= TLAN_HC_GO; |
| } else { |
| priv->txInProgress = 0; |
| } |
| } |
| |
| return ack; |
| |
| } /* TLan_HandleTxEOC */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleStatusCheck |
| * |
| * Returns: |
| * 0 if Adapter check, 1 if Network Status check. |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This function handles Adapter Check/Network Status |
| * interrupts generated by the adapter. It checks the |
| * vector in the HOST_INT register to determine if it is |
| * an Adapter Check interrupt. If so, it resets the |
| * adapter. Otherwise it clears the status registers |
| * and services the PHY. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u32 ack; |
| u32 error; |
| u8 net_sts; |
| u32 phy; |
| u16 tlphy_ctl; |
| u16 tlphy_sts; |
| |
| ack = 1; |
| if ( host_int & TLAN_HI_IV_MASK ) { |
| netif_stop_queue( dev ); |
| error = inl( dev->base_addr + TLAN_CH_PARM ); |
| printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error ); |
| TLan_ReadAndClearStats( dev, TLAN_RECORD ); |
| outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); |
| |
| schedule_work(&priv->tlan_tqueue); |
| |
| netif_wake_queue(dev); |
| ack = 0; |
| } else { |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name ); |
| phy = priv->phy[priv->phyNum]; |
| |
| net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS ); |
| if ( net_sts ) { |
| TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts ); |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n", dev->name, (unsigned) net_sts ); |
| } |
| if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) { |
| TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts ); |
| TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl ); |
| if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) { |
| tlphy_ctl |= TLAN_TC_SWAPOL; |
| TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); |
| } else if ( ( tlphy_sts & TLAN_TS_POLOK ) && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) { |
| tlphy_ctl &= ~TLAN_TC_SWAPOL; |
| TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); |
| } |
| |
| if (debug) { |
| TLan_PhyPrint( dev ); |
| } |
| } |
| } |
| |
| return ack; |
| |
| } /* TLan_HandleStatusCheck */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_HandleRxEOC |
| * |
| * Returns: |
| * 1 |
| * Parms: |
| * dev Device assigned the IRQ that was |
| * raised. |
| * host_int The contents of the HOST_INT |
| * port. |
| * |
| * This driver is structured to determine EOC occurrences by |
| * reading the CSTAT member of the list structure. Rx EOC |
| * interrupts are disabled via the DIO INTDIS register. |
| * However, TLAN chips before revision 3.0 didn't have this |
| * CSTAT member or a INTDIS register, so if this chip is |
| * pre-3.0, process EOC interrupts normally. |
| * |
| **************************************************************/ |
| |
| u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| dma_addr_t head_list_phys; |
| u32 ack = 1; |
| |
| if ( priv->tlanRev < 0x30 ) { |
| TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", priv->rxHead, priv->rxTail ); |
| head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; |
| outl( head_list_phys, dev->base_addr + TLAN_CH_PARM ); |
| ack |= TLAN_HC_GO | TLAN_HC_RT; |
| priv->rxEocCount++; |
| } |
| |
| return ack; |
| |
| } /* TLan_HandleRxEOC */ |
| |
| |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver Timer Function |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| /*************************************************************** |
| * TLan_Timer |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * data A value given to add timer when |
| * add_timer was called. |
| * |
| * This function handles timed functionality for the |
| * TLAN driver. The two current timer uses are for |
| * delaying for autonegotionation and driving the ACT LED. |
| * - Autonegotiation requires being allowed about |
| * 2 1/2 seconds before attempting to transmit a |
| * packet. It would be a very bad thing to hang |
| * the kernel this long, so the driver doesn't |
| * allow transmission 'til after this time, for |
| * certain PHYs. It would be much nicer if all |
| * PHYs were interrupt-capable like the internal |
| * PHY. |
| * - The ACT LED, which shows adapter activity, is |
| * driven by the driver, and so must be left on |
| * for a short period to power up the LED so it |
| * can be seen. This delay can be changed by |
| * changing the TLAN_TIMER_ACT_DELAY in tlan.h, |
| * if desired. 100 ms produces a slightly |
| * sluggish response. |
| * |
| **************************************************************/ |
| |
| void TLan_Timer( unsigned long data ) |
| { |
| struct net_device *dev = (struct net_device *) data; |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u32 elapsed; |
| unsigned long flags = 0; |
| |
| priv->timer.function = NULL; |
| |
| switch ( priv->timerType ) { |
| #ifdef MONITOR |
| case TLAN_TIMER_LINK_BEAT: |
| TLan_PhyMonitor( dev ); |
| break; |
| #endif |
| case TLAN_TIMER_PHY_PDOWN: |
| TLan_PhyPowerDown( dev ); |
| break; |
| case TLAN_TIMER_PHY_PUP: |
| TLan_PhyPowerUp( dev ); |
| break; |
| case TLAN_TIMER_PHY_RESET: |
| TLan_PhyReset( dev ); |
| break; |
| case TLAN_TIMER_PHY_START_LINK: |
| TLan_PhyStartLink( dev ); |
| break; |
| case TLAN_TIMER_PHY_FINISH_AN: |
| TLan_PhyFinishAutoNeg( dev ); |
| break; |
| case TLAN_TIMER_FINISH_RESET: |
| TLan_FinishReset( dev ); |
| break; |
| case TLAN_TIMER_ACTIVITY: |
| spin_lock_irqsave(&priv->lock, flags); |
| if ( priv->timer.function == NULL ) { |
| elapsed = jiffies - priv->timerSetAt; |
| if ( elapsed >= TLAN_TIMER_ACT_DELAY ) { |
| TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); |
| } else { |
| priv->timer.function = &TLan_Timer; |
| priv->timer.expires = priv->timerSetAt + TLAN_TIMER_ACT_DELAY; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| add_timer( &priv->timer ); |
| break; |
| } |
| } |
| spin_unlock_irqrestore(&priv->lock, flags); |
| break; |
| default: |
| break; |
| } |
| |
| } /* TLan_Timer */ |
| |
| |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver Adapter Related Routines |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| /*************************************************************** |
| * TLan_ResetLists |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev The device structure with the list |
| * stuctures to be reset. |
| * |
| * This routine sets the variables associated with managing |
| * the TLAN lists to their initial values. |
| * |
| **************************************************************/ |
| |
| void TLan_ResetLists( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| int i; |
| TLanList *list; |
| dma_addr_t list_phys; |
| struct sk_buff *skb; |
| void *t = NULL; |
| |
| priv->txHead = 0; |
| priv->txTail = 0; |
| for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { |
| list = priv->txList + i; |
| list->cStat = TLAN_CSTAT_UNUSED; |
| if ( bbuf ) { |
| list->buffer[0].address = priv->txBufferDMA + ( i * TLAN_MAX_FRAME_SIZE ); |
| } else { |
| list->buffer[0].address = 0; |
| } |
| list->buffer[2].count = 0; |
| list->buffer[2].address = 0; |
| list->buffer[8].address = 0; |
| list->buffer[9].address = 0; |
| } |
| |
| priv->rxHead = 0; |
| priv->rxTail = TLAN_NUM_RX_LISTS - 1; |
| for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { |
| list = priv->rxList + i; |
| list_phys = priv->rxListDMA + sizeof(TLanList) * i; |
| list->cStat = TLAN_CSTAT_READY; |
| list->frameSize = TLAN_MAX_FRAME_SIZE; |
| list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER; |
| if ( bbuf ) { |
| list->buffer[0].address = priv->rxBufferDMA + ( i * TLAN_MAX_FRAME_SIZE ); |
| } else { |
| skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 ); |
| if ( skb == NULL ) { |
| printk( "TLAN: Couldn't allocate memory for received data.\n" ); |
| /* If this ever happened it would be a problem */ |
| } else { |
| skb->dev = dev; |
| skb_reserve( skb, 2 ); |
| t = (void *) skb_put( skb, TLAN_MAX_FRAME_SIZE ); |
| } |
| list->buffer[0].address = pci_map_single(priv->pciDev, t, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
| list->buffer[8].address = (u32) t; |
| TLan_StoreSKB(list, skb); |
| } |
| list->buffer[1].count = 0; |
| list->buffer[1].address = 0; |
| if ( i < TLAN_NUM_RX_LISTS - 1 ) |
| list->forward = list_phys + sizeof(TLanList); |
| else |
| list->forward = 0; |
| } |
| |
| } /* TLan_ResetLists */ |
| |
| |
| void TLan_FreeLists( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| int i; |
| TLanList *list; |
| struct sk_buff *skb; |
| |
| if ( ! bbuf ) { |
| for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { |
| list = priv->txList + i; |
| skb = TLan_GetSKB(list); |
| if ( skb ) { |
| pci_unmap_single(priv->pciDev, list->buffer[0].address, skb->len, PCI_DMA_TODEVICE); |
| dev_kfree_skb_any( skb ); |
| list->buffer[8].address = 0; |
| list->buffer[9].address = 0; |
| } |
| } |
| |
| for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { |
| list = priv->rxList + i; |
| skb = TLan_GetSKB(list); |
| if ( skb ) { |
| pci_unmap_single(priv->pciDev, list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
| dev_kfree_skb_any( skb ); |
| list->buffer[8].address = 0; |
| list->buffer[9].address = 0; |
| } |
| } |
| } |
| } /* TLan_FreeLists */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_PrintDio |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * io_base Base IO port of the device of |
| * which to print DIO registers. |
| * |
| * This function prints out all the internal (DIO) |
| * registers of a TLAN chip. |
| * |
| **************************************************************/ |
| |
| void TLan_PrintDio( u16 io_base ) |
| { |
| u32 data0, data1; |
| int i; |
| |
| printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n", io_base ); |
| printk( "TLAN: Off. +0 +4\n" ); |
| for ( i = 0; i < 0x4C; i+= 8 ) { |
| data0 = TLan_DioRead32( io_base, i ); |
| data1 = TLan_DioRead32( io_base, i + 0x4 ); |
| printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 ); |
| } |
| |
| } /* TLan_PrintDio */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_PrintList |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * list A pointer to the TLanList structure to |
| * be printed. |
| * type A string to designate type of list, |
| * "Rx" or "Tx". |
| * num The index of the list. |
| * |
| * This function prints out the contents of the list |
| * pointed to by the list parameter. |
| * |
| **************************************************************/ |
| |
| void TLan_PrintList( TLanList *list, char *type, int num) |
| { |
| int i; |
| |
| printk( "TLAN: %s List %d at 0x%08x\n", type, num, (u32) list ); |
| printk( "TLAN: Forward = 0x%08x\n", list->forward ); |
| printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat ); |
| printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize ); |
| /* for ( i = 0; i < 10; i++ ) { */ |
| for ( i = 0; i < 2; i++ ) { |
| printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", i, list->buffer[i].count, list->buffer[i].address ); |
| } |
| |
| } /* TLan_PrintList */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_ReadAndClearStats |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev Pointer to device structure of adapter |
| * to which to read stats. |
| * record Flag indicating whether to add |
| * |
| * This functions reads all the internal status registers |
| * of the TLAN chip, which clears them as a side effect. |
| * It then either adds the values to the device's status |
| * struct, or discards them, depending on whether record |
| * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0). |
| * |
| **************************************************************/ |
| |
| void TLan_ReadAndClearStats( struct net_device *dev, int record ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u32 tx_good, tx_under; |
| u32 rx_good, rx_over; |
| u32 def_tx, crc, code; |
| u32 multi_col, single_col; |
| u32 excess_col, late_col, loss; |
| |
| outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| tx_good = inb( dev->base_addr + TLAN_DIO_DATA ); |
| tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16; |
| tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); |
| |
| outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| rx_good = inb( dev->base_addr + TLAN_DIO_DATA ); |
| rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16; |
| rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); |
| |
| outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR ); |
| def_tx = inb( dev->base_addr + TLAN_DIO_DATA ); |
| def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); |
| code = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); |
| |
| outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| multi_col = inb( dev->base_addr + TLAN_DIO_DATA ); |
| multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; |
| single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); |
| single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8; |
| |
| outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
| excess_col = inb( dev->base_addr + TLAN_DIO_DATA ); |
| late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 ); |
| loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); |
| |
| if ( record ) { |
| priv->stats.rx_packets += rx_good; |
| priv->stats.rx_errors += rx_over + crc + code; |
| priv->stats.tx_packets += tx_good; |
| priv->stats.tx_errors += tx_under + loss; |
| priv->stats.collisions += multi_col + single_col + excess_col + late_col; |
| |
| priv->stats.rx_over_errors += rx_over; |
| priv->stats.rx_crc_errors += crc; |
| priv->stats.rx_frame_errors += code; |
| |
| priv->stats.tx_aborted_errors += tx_under; |
| priv->stats.tx_carrier_errors += loss; |
| } |
| |
| } /* TLan_ReadAndClearStats */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_Reset |
| * |
| * Returns: |
| * 0 |
| * Parms: |
| * dev Pointer to device structure of adapter |
| * to be reset. |
| * |
| * This function resets the adapter and it's physical |
| * device. See Chap. 3, pp. 9-10 of the "ThunderLAN |
| * Programmer's Guide" for details. The routine tries to |
| * implement what is detailed there, though adjustments |
| * have been made. |
| * |
| **************************************************************/ |
| |
| void |
| TLan_ResetAdapter( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| int i; |
| u32 addr; |
| u32 data; |
| u8 data8; |
| |
| priv->tlanFullDuplex = FALSE; |
| priv->phyOnline=0; |
| netif_carrier_off(dev); |
| |
| /* 1. Assert reset bit. */ |
| |
| data = inl(dev->base_addr + TLAN_HOST_CMD); |
| data |= TLAN_HC_AD_RST; |
| outl(data, dev->base_addr + TLAN_HOST_CMD); |
| |
| udelay(1000); |
| |
| /* 2. Turn off interrupts. ( Probably isn't necessary ) */ |
| |
| data = inl(dev->base_addr + TLAN_HOST_CMD); |
| data |= TLAN_HC_INT_OFF; |
| outl(data, dev->base_addr + TLAN_HOST_CMD); |
| |
| /* 3. Clear AREGs and HASHs. */ |
| |
| for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) { |
| TLan_DioWrite32( dev->base_addr, (u16) i, 0 ); |
| } |
| |
| /* 4. Setup NetConfig register. */ |
| |
| data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; |
| TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data ); |
| |
| /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */ |
| |
| outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD ); |
| outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD ); |
| |
| /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */ |
| |
| outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR ); |
| addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
| TLan_SetBit( TLAN_NET_SIO_NMRST, addr ); |
| |
| /* 7. Setup the remaining registers. */ |
| |
| if ( priv->tlanRev >= 0x30 ) { |
| data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC; |
| TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 ); |
| } |
| TLan_PhyDetect( dev ); |
| data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN; |
| |
| if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) { |
| data |= TLAN_NET_CFG_BIT; |
| if ( priv->aui == 1 ) { |
| TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a ); |
| } else if ( priv->duplex == TLAN_DUPLEX_FULL ) { |
| TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 ); |
| priv->tlanFullDuplex = TRUE; |
| } else { |
| TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 ); |
| } |
| } |
| |
| if ( priv->phyNum == 0 ) { |
| data |= TLAN_NET_CFG_PHY_EN; |
| } |
| TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data ); |
| |
| if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { |
| TLan_FinishReset( dev ); |
| } else { |
| TLan_PhyPowerDown( dev ); |
| } |
| |
| } /* TLan_ResetAdapter */ |
| |
| |
| |
| |
| void |
| TLan_FinishReset( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u8 data; |
| u32 phy; |
| u8 sio; |
| u16 status; |
| u16 partner; |
| u16 tlphy_ctl; |
| u16 tlphy_par; |
| u16 tlphy_id1, tlphy_id2; |
| int i; |
| |
| phy = priv->phy[priv->phyNum]; |
| |
| data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP; |
| if ( priv->tlanFullDuplex ) { |
| data |= TLAN_NET_CMD_DUPLEX; |
| } |
| TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data ); |
| data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5; |
| if ( priv->phyNum == 0 ) { |
| data |= TLAN_NET_MASK_MASK7; |
| } |
| TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data ); |
| TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 ); |
| |
| if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || ( priv->aui ) ) { |
| status = MII_GS_LINK; |
| printk( "TLAN: %s: Link forced.\n", dev->name ); |
| } else { |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| udelay( 1000 ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| if ( (status & MII_GS_LINK) && /* We only support link info on Nat.Sem. PHY's */ |
| (tlphy_id1 == NAT_SEM_ID1) && |
| (tlphy_id2 == NAT_SEM_ID2) ) { |
| TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner ); |
| TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par ); |
| |
| printk( "TLAN: %s: Link active with ", dev->name ); |
| if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) { |
| printk( "forced 10%sMbps %s-Duplex\n", |
| tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", |
| tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); |
| } else { |
| printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n", |
| tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", |
| tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); |
| printk("TLAN: Partner capability: "); |
| for (i = 5; i <= 10; i++) |
| if (partner & (1<<i)) |
| printk("%s",media[i-5]); |
| printk("\n"); |
| } |
| |
| TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); |
| #ifdef MONITOR |
| /* We have link beat..for now anyway */ |
| priv->link = 1; |
| /*Enabling link beat monitoring */ |
| TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT ); |
| #endif |
| } else if (status & MII_GS_LINK) { |
| printk( "TLAN: %s: Link active\n", dev->name ); |
| TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); |
| } |
| } |
| |
| if ( priv->phyNum == 0 ) { |
| TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl ); |
| tlphy_ctl |= TLAN_TC_INTEN; |
| TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl ); |
| sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO ); |
| sio |= TLAN_NET_SIO_MINTEN; |
| TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio ); |
| } |
| |
| if ( status & MII_GS_LINK ) { |
| TLan_SetMac( dev, 0, dev->dev_addr ); |
| priv->phyOnline = 1; |
| outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 ); |
| if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) { |
| outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 ); |
| } |
| outl( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM ); |
| outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD ); |
| netif_carrier_on(dev); |
| } else { |
| printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n", dev->name ); |
| TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET ); |
| return; |
| } |
| |
| } /* TLan_FinishReset */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_SetMac |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev Pointer to device structure of adapter |
| * on which to change the AREG. |
| * areg The AREG to set the address in (0 - 3). |
| * mac A pointer to an array of chars. Each |
| * element stores one byte of the address. |
| * IE, it isn't in ascii. |
| * |
| * This function transfers a MAC address to one of the |
| * TLAN AREGs (address registers). The TLAN chip locks |
| * the register on writing to offset 0 and unlocks the |
| * register after writing to offset 5. If NULL is passed |
| * in mac, then the AREG is filled with 0's. |
| * |
| **************************************************************/ |
| |
| void TLan_SetMac( struct net_device *dev, int areg, char *mac ) |
| { |
| int i; |
| |
| areg *= 6; |
| |
| if ( mac != NULL ) { |
| for ( i = 0; i < 6; i++ ) |
| TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, mac[i] ); |
| } else { |
| for ( i = 0; i < 6; i++ ) |
| TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, 0 ); |
| } |
| |
| } /* TLan_SetMac */ |
| |
| |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver PHY Layer Routines |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| |
| /********************************************************************* |
| * TLan_PhyPrint |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev A pointer to the device structure of the |
| * TLAN device having the PHYs to be detailed. |
| * |
| * This function prints the registers a PHY (aka transceiver). |
| * |
| ********************************************************************/ |
| |
| void TLan_PhyPrint( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 i, data0, data1, data2, data3, phy; |
| |
| phy = priv->phy[priv->phyNum]; |
| |
| if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { |
| printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name ); |
| } else if ( phy <= TLAN_PHY_MAX_ADDR ) { |
| printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy ); |
| printk( "TLAN: Off. +0 +1 +2 +3 \n" ); |
| for ( i = 0; i < 0x20; i+= 4 ) { |
| printk( "TLAN: 0x%02x", i ); |
| TLan_MiiReadReg( dev, phy, i, &data0 ); |
| printk( " 0x%04hx", data0 ); |
| TLan_MiiReadReg( dev, phy, i + 1, &data1 ); |
| printk( " 0x%04hx", data1 ); |
| TLan_MiiReadReg( dev, phy, i + 2, &data2 ); |
| printk( " 0x%04hx", data2 ); |
| TLan_MiiReadReg( dev, phy, i + 3, &data3 ); |
| printk( " 0x%04hx\n", data3 ); |
| } |
| } else { |
| printk( "TLAN: Device %s, Invalid PHY.\n", dev->name ); |
| } |
| |
| } /* TLan_PhyPrint */ |
| |
| |
| |
| |
| /********************************************************************* |
| * TLan_PhyDetect |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev A pointer to the device structure of the adapter |
| * for which the PHY needs determined. |
| * |
| * So far I've found that adapters which have external PHYs |
| * may also use the internal PHY for part of the functionality. |
| * (eg, AUI/Thinnet). This function finds out if this TLAN |
| * chip has an internal PHY, and then finds the first external |
| * PHY (starting from address 0) if it exists). |
| * |
| ********************************************************************/ |
| |
| void TLan_PhyDetect( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 control; |
| u16 hi; |
| u16 lo; |
| u32 phy; |
| |
| if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { |
| priv->phyNum = 0xFFFF; |
| return; |
| } |
| |
| TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi ); |
| |
| if ( hi != 0xFFFF ) { |
| priv->phy[0] = TLAN_PHY_MAX_ADDR; |
| } else { |
| priv->phy[0] = TLAN_PHY_NONE; |
| } |
| |
| priv->phy[1] = TLAN_PHY_NONE; |
| for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) { |
| TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo ); |
| if ( ( control != 0xFFFF ) || ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) { |
| TLAN_DBG( TLAN_DEBUG_GNRL, "PHY found at %02x %04x %04x %04x\n", phy, control, hi, lo ); |
| if ( ( priv->phy[1] == TLAN_PHY_NONE ) && ( phy != TLAN_PHY_MAX_ADDR ) ) { |
| priv->phy[1] = phy; |
| } |
| } |
| } |
| |
| if ( priv->phy[1] != TLAN_PHY_NONE ) { |
| priv->phyNum = 1; |
| } else if ( priv->phy[0] != TLAN_PHY_NONE ) { |
| priv->phyNum = 0; |
| } else { |
| printk( "TLAN: Cannot initialize device, no PHY was found!\n" ); |
| } |
| |
| } /* TLan_PhyDetect */ |
| |
| |
| |
| |
| void TLan_PhyPowerDown( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 value; |
| |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name ); |
| value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE; |
| TLan_MiiSync( dev->base_addr ); |
| TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value ); |
| if ( ( priv->phyNum == 0 ) && ( priv->phy[1] != TLAN_PHY_NONE ) && ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) { |
| TLan_MiiSync( dev->base_addr ); |
| TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value ); |
| } |
| |
| /* Wait for 50 ms and powerup |
| * This is abitrary. It is intended to make sure the |
| * transceiver settles. |
| */ |
| TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP ); |
| |
| } /* TLan_PhyPowerDown */ |
| |
| |
| |
| |
| void TLan_PhyPowerUp( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 value; |
| |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name ); |
| TLan_MiiSync( dev->base_addr ); |
| value = MII_GC_LOOPBK; |
| TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value ); |
| TLan_MiiSync(dev->base_addr); |
| /* Wait for 500 ms and reset the |
| * transceiver. The TLAN docs say both 50 ms and |
| * 500 ms, so do the longer, just in case. |
| */ |
| TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET ); |
| |
| } /* TLan_PhyPowerUp */ |
| |
| |
| |
| |
| void TLan_PhyReset( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 phy; |
| u16 value; |
| |
| phy = priv->phy[priv->phyNum]; |
| |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name ); |
| TLan_MiiSync( dev->base_addr ); |
| value = MII_GC_LOOPBK | MII_GC_RESET; |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value ); |
| while ( value & MII_GC_RESET ) { |
| TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value ); |
| } |
| |
| /* Wait for 500 ms and initialize. |
| * I don't remember why I wait this long. |
| * I've changed this to 50ms, as it seems long enough. |
| */ |
| TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK ); |
| |
| } /* TLan_PhyReset */ |
| |
| |
| |
| |
| void TLan_PhyStartLink( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 ability; |
| u16 control; |
| u16 data; |
| u16 phy; |
| u16 status; |
| u16 tctl; |
| |
| phy = priv->phy[priv->phyNum]; |
| TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability ); |
| |
| if ( ( status & MII_GS_AUTONEG ) && |
| ( ! priv->aui ) ) { |
| ability = status >> 11; |
| if ( priv->speed == TLAN_SPEED_10 && |
| priv->duplex == TLAN_DUPLEX_HALF) { |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000); |
| } else if ( priv->speed == TLAN_SPEED_10 && |
| priv->duplex == TLAN_DUPLEX_FULL) { |
| priv->tlanFullDuplex = TRUE; |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100); |
| } else if ( priv->speed == TLAN_SPEED_100 && |
| priv->duplex == TLAN_DUPLEX_HALF) { |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000); |
| } else if ( priv->speed == TLAN_SPEED_100 && |
| priv->duplex == TLAN_DUPLEX_FULL) { |
| priv->tlanFullDuplex = TRUE; |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100); |
| } else { |
| |
| /* Set Auto-Neg advertisement */ |
| TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1); |
| /* Enablee Auto-Neg */ |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 ); |
| /* Restart Auto-Neg */ |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 ); |
| /* Wait for 4 sec for autonegotiation |
| * to complete. The max spec time is less than this |
| * but the card need additional time to start AN. |
| * .5 sec should be plenty extra. |
| */ |
| printk( "TLAN: %s: Starting autonegotiation.\n", dev->name ); |
| TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN ); |
| return; |
| } |
| |
| } |
| |
| if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) { |
| priv->phyNum = 0; |
| data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; |
| TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data ); |
| TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN ); |
| return; |
| } else if ( priv->phyNum == 0 ) { |
| control = 0; |
| TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl ); |
| if ( priv->aui ) { |
| tctl |= TLAN_TC_AUISEL; |
| } else { |
| tctl &= ~TLAN_TC_AUISEL; |
| if ( priv->duplex == TLAN_DUPLEX_FULL ) { |
| control |= MII_GC_DUPLEX; |
| priv->tlanFullDuplex = TRUE; |
| } |
| if ( priv->speed == TLAN_SPEED_100 ) { |
| control |= MII_GC_SPEEDSEL; |
| } |
| } |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control ); |
| TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl ); |
| } |
| |
| /* Wait for 2 sec to give the transceiver time |
| * to establish link. |
| */ |
| TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET ); |
| |
| } /* TLan_PhyStartLink */ |
| |
| |
| |
| |
| void TLan_PhyFinishAutoNeg( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 an_adv; |
| u16 an_lpa; |
| u16 data; |
| u16 mode; |
| u16 phy; |
| u16 status; |
| |
| phy = priv->phy[priv->phyNum]; |
| |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| udelay( 1000 ); |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); |
| |
| if ( ! ( status & MII_GS_AUTOCMPLT ) ) { |
| /* Wait for 8 sec to give the process |
| * more time. Perhaps we should fail after a while. |
| */ |
| if (!priv->neg_be_verbose++) { |
| printk(KERN_INFO "TLAN: Giving autonegotiation more time.\n"); |
| printk(KERN_INFO "TLAN: Please check that your adapter has\n"); |
| printk(KERN_INFO "TLAN: been properly connected to a HUB or Switch.\n"); |
| printk(KERN_INFO "TLAN: Trying to establish link in the background...\n"); |
| } |
| TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN ); |
| return; |
| } |
| |
| printk( "TLAN: %s: Autonegotiation complete.\n", dev->name ); |
| TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv ); |
| TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa ); |
| mode = an_adv & an_lpa & 0x03E0; |
| if ( mode & 0x0100 ) { |
| priv->tlanFullDuplex = TRUE; |
| } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) { |
| priv->tlanFullDuplex = TRUE; |
| } |
| |
| if ( ( ! ( mode & 0x0180 ) ) && ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && ( priv->phyNum != 0 ) ) { |
| priv->phyNum = 0; |
| data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; |
| TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data ); |
| TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN ); |
| return; |
| } |
| |
| if ( priv->phyNum == 0 ) { |
| if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || ( an_adv & an_lpa & 0x0040 ) ) { |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB | MII_GC_DUPLEX ); |
| printk( "TLAN: Starting internal PHY with FULL-DUPLEX\n" ); |
| } else { |
| TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB ); |
| printk( "TLAN: Starting internal PHY with HALF-DUPLEX\n" ); |
| } |
| } |
| |
| /* Wait for 100 ms. No reason in partiticular. |
| */ |
| TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET ); |
| |
| } /* TLan_PhyFinishAutoNeg */ |
| |
| #ifdef MONITOR |
| |
| /********************************************************************* |
| * |
| * TLan_phyMonitor |
| * |
| * Returns: |
| * None |
| * |
| * Params: |
| * dev The device structure of this device. |
| * |
| * |
| * This function monitors PHY condition by reading the status |
| * register via the MII bus. This can be used to give info |
| * about link changes (up/down), and possible switch to alternate |
| * media. |
| * |
| * ******************************************************************/ |
| |
| void TLan_PhyMonitor( struct net_device *dev ) |
| { |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| u16 phy; |
| u16 phy_status; |
| |
| phy = priv->phy[priv->phyNum]; |
| |
| /* Get PHY status register */ |
| TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status ); |
| |
| /* Check if link has been lost */ |
| if (!(phy_status & MII_GS_LINK)) { |
| if (priv->link) { |
| priv->link = 0; |
| printk(KERN_DEBUG "TLAN: %s has lost link\n", dev->name); |
| dev->flags &= ~IFF_RUNNING; |
| TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT ); |
| return; |
| } |
| } |
| |
| /* Link restablished? */ |
| if ((phy_status & MII_GS_LINK) && !priv->link) { |
| priv->link = 1; |
| printk(KERN_DEBUG "TLAN: %s has reestablished link\n", dev->name); |
| dev->flags |= IFF_RUNNING; |
| } |
| |
| /* Setup a new monitor */ |
| TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT ); |
| } |
| |
| #endif /* MONITOR */ |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver MII Routines |
| |
| These routines are based on the information in Chap. 2 of the |
| "ThunderLAN Programmer's Guide", pp. 15-24. |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| /*************************************************************** |
| * TLan_MiiReadReg |
| * |
| * Returns: |
| * 0 if ack received ok |
| * 1 otherwise. |
| * |
| * Parms: |
| * dev The device structure containing |
| * The io address and interrupt count |
| * for this device. |
| * phy The address of the PHY to be queried. |
| * reg The register whose contents are to be |
| * retreived. |
| * val A pointer to a variable to store the |
| * retrieved value. |
| * |
| * This function uses the TLAN's MII bus to retreive the contents |
| * of a given register on a PHY. It sends the appropriate info |
| * and then reads the 16-bit register value from the MII bus via |
| * the TLAN SIO register. |
| * |
| **************************************************************/ |
| |
| int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val ) |
| { |
| u8 nack; |
| u16 sio, tmp; |
| u32 i; |
| int err; |
| int minten; |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| unsigned long flags = 0; |
| |
| err = FALSE; |
| outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); |
| sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
| |
| if (!in_irq()) |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| TLan_MiiSync(dev->base_addr); |
| |
| minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio ); |
| if ( minten ) |
| TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio); |
| |
| TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */ |
| TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */ |
| TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */ |
| TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */ |
| |
| |
| TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */ |
| |
| TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */ |
| TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */ |
| |
| nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */ |
| TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */ |
| if (nack) { /* No ACK, so fake it */ |
| for (i = 0; i < 16; i++) { |
| TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); |
| TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| } |
| tmp = 0xffff; |
| err = TRUE; |
| } else { /* ACK, so read data */ |
| for (tmp = 0, i = 0x8000; i; i >>= 1) { |
| TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); |
| if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio)) |
| tmp |= i; |
| TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| } |
| } |
| |
| |
| TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */ |
| TLan_SetBit(TLAN_NET_SIO_MCLK, sio); |
| |
| if ( minten ) |
| TLan_SetBit(TLAN_NET_SIO_MINTEN, sio); |
| |
| *val = tmp; |
| |
| if (!in_irq()) |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| return err; |
| |
| } /* TLan_MiiReadReg */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_MiiSendData |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * base_port The base IO port of the adapter in |
| * question. |
| * dev The address of the PHY to be queried. |
| * data The value to be placed on the MII bus. |
| * num_bits The number of bits in data that are to |
| * be placed on the MII bus. |
| * |
| * This function sends on sequence of bits on the MII |
| * configuration bus. |
| * |
| **************************************************************/ |
| |
| void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits ) |
| { |
| u16 sio; |
| u32 i; |
| |
| if ( num_bits == 0 ) |
| return; |
| |
| outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR ); |
| sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; |
| TLan_SetBit( TLAN_NET_SIO_MTXEN, sio ); |
| |
| for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) { |
| TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); |
| (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio ); |
| if ( data & i ) |
| TLan_SetBit( TLAN_NET_SIO_MDATA, sio ); |
| else |
| TLan_ClearBit( TLAN_NET_SIO_MDATA, sio ); |
| TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); |
| (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio ); |
| } |
| |
| } /* TLan_MiiSendData */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_MiiSync |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * base_port The base IO port of the adapter in |
| * question. |
| * |
| * This functions syncs all PHYs in terms of the MII configuration |
| * bus. |
| * |
| **************************************************************/ |
| |
| void TLan_MiiSync( u16 base_port ) |
| { |
| int i; |
| u16 sio; |
| |
| outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR ); |
| sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; |
| |
| TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio ); |
| for ( i = 0; i < 32; i++ ) { |
| TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); |
| TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); |
| } |
| |
| } /* TLan_MiiSync */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_MiiWriteReg |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * dev The device structure for the device |
| * to write to. |
| * phy The address of the PHY to be written to. |
| * reg The register whose contents are to be |
| * written. |
| * val The value to be written to the register. |
| * |
| * This function uses the TLAN's MII bus to write the contents of a |
| * given register on a PHY. It sends the appropriate info and then |
| * writes the 16-bit register value from the MII configuration bus |
| * via the TLAN SIO register. |
| * |
| **************************************************************/ |
| |
| void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val ) |
| { |
| u16 sio; |
| int minten; |
| unsigned long flags = 0; |
| TLanPrivateInfo *priv = netdev_priv(dev); |
| |
| outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); |
| sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; |
| |
| if (!in_irq()) |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| TLan_MiiSync( dev->base_addr ); |
| |
| minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio ); |
| if ( minten ) |
| TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio ); |
| |
| TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */ |
| TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */ |
| TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */ |
| TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */ |
| |
| TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */ |
| TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */ |
| |
| TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */ |
| TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); |
| |
| if ( minten ) |
| TLan_SetBit( TLAN_NET_SIO_MINTEN, sio ); |
| |
| if (!in_irq()) |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| } /* TLan_MiiWriteReg */ |
| |
| |
| |
| |
| /***************************************************************************** |
| ****************************************************************************** |
| |
| ThunderLAN Driver Eeprom routines |
| |
| The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A |
| EEPROM. These functions are based on information in Microchip's |
| data sheet. I don't know how well this functions will work with |
| other EEPROMs. |
| |
| ****************************************************************************** |
| *****************************************************************************/ |
| |
| |
| /*************************************************************** |
| * TLan_EeSendStart |
| * |
| * Returns: |
| * Nothing |
| * Parms: |
| * io_base The IO port base address for the |
| * TLAN device with the EEPROM to |
| * use. |
| * |
| * This function sends a start cycle to an EEPROM attached |
| * to a TLAN chip. |
| * |
| **************************************************************/ |
| |
| void TLan_EeSendStart( u16 io_base ) |
| { |
| u16 sio; |
| |
| outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); |
| sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; |
| |
| TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); |
| TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); |
| TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); |
| TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); |
| TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); |
| |
| } /* TLan_EeSendStart */ |
| |
| |
| |
| |
| /*************************************************************** |
| * TLan_EeSendByte |
| * |
| * Returns: |
| * If the correct ack was received, 0, otherwise 1 |
| * Parms: io_base The IO port base address for the |
| * TLAN device with the EEPROM to |
| * use. |
|