1 /*******************************************************************************
3 * Linux ThunderLAN Driver
8 * (C) 1997-1998 Caldera, Inc.
10 * (C) 1999-2001 Torben Mathiasen
11 * (C) 2002 Samuel Chessman
13 * This software may be used and distributed according to the terms
14 * of the GNU General Public License, incorporated herein by reference.
16 ** This file is best viewed/edited with columns>=132.
18 ** Useful (if not required) reading:
20 * Texas Instruments, ThunderLAN Programmer's Guide,
21 * TI Literature Number SPWU013A
22 * available in PDF format from www.ti.com
23 * Level One, LXT901 and LXT970 Data Sheets
24 * available in PDF format from www.level1.com
25 * National Semiconductor, DP83840A Data Sheet
26 * available in PDF format from www.national.com
27 * Microchip Technology, 24C01A/02A/04A Data Sheet
28 * available in PDF format from www.microchip.com
32 * Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses
33 * new PCI BIOS interface.
34 * Alan Cox <alan@redhat.com>: Fixed the out of memory
37 * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer!
39 * v1.1 Dec 20, 1999 - Removed linux version checking
40 * Patch from Tigran Aivazian.
41 * - v1.1 includes Alan's SMP updates.
42 * - We still have problems on SMP though,
43 * but I'm looking into that.
45 * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock.
46 * - Removed dependency of HZ being 100.
47 * - We now allow higher priority timers to
48 * overwrite timers like TLAN_TIMER_ACTIVITY
49 * Patch from John Cagle <john.cagle@compaq.com>.
50 * - Fixed a few compiler warnings.
52 * v1.3 Feb 04, 2000 - Fixed the remaining HZ issues.
53 * - Removed call to pci_present().
54 * - Removed SA_INTERRUPT flag from irq handler.
55 * - Added __init and __initdata to reduce resisdent
57 * - Driver now uses module_init/module_exit.
58 * - Rewrote init_module and tlan_probe to
59 * share a lot more code. We now use tlan_probe
60 * with builtin and module driver.
61 * - Driver ported to new net API.
62 * - tlan.txt has been reworked to reflect current
66 * v1.4 Feb 10, 2000 - Updated with more changes required after Dave's
67 * network cleanup in 2.3.43pre7 (Tigran & myself)
70 * v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver
71 * if no cable/link were present.
73 * - TODO: Port completely to new PCI/DMA API
76 * v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't
77 * tested it though, as the kernel support is currently
78 * broken (2.3.99p4p3).
79 * - Updated tlan.txt accordingly.
80 * - Adjusted minimum/maximum frame length.
81 * - There is now a TLAN website up at
82 * http://tlan.kernel.dk
84 * v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now
85 * reports PHY information when used with Donald
86 * Beckers userspace MII diagnostics utility.
88 * v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings.
89 * - Added link information to Auto-Neg and forced
90 * modes. When NIC operates with auto-neg the driver
91 * will report Link speed & duplex modes as well as
92 * link partner abilities. When forced link is used,
93 * the driver will report status of the established
95 * Please read tlan.txt for additional information.
96 * - Removed call to check_region(), and used
97 * return value of request_region() instead.
99 * v1.8a May 28, 2000 - Minor updates.
101 * v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues.
102 * - Updated with timer fixes from Andrew Morton.
103 * - Fixed module race in TLan_Open.
104 * - Added routine to monitor PHY status.
105 * - Added activity led support for Proliant devices.
107 * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers
108 * like the Compaq NetFlex3/E.
109 * - Rewrote tlan_probe to better handle multiple
110 * bus probes. Probing and device setup is now
111 * done through TLan_Probe and TLan_init_one. Actual
112 * hardware probe is done with kernel API and
114 * - Adjusted debug information for probing.
115 * - Fixed bug that would cause general debug information
116 * to be printed after driver removal.
117 * - Added transmit timeout handling.
118 * - Fixed OOM return values in tlan_probe.
119 * - Fixed possible mem leak in tlan_exit
120 * (now tlan_remove_one).
121 * - Fixed timer bug in TLan_phyMonitor.
122 * - This driver version is alpha quality, please
123 * send me any bug issues you may encounter.
125 * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was
126 * set for EISA cards.
127 * - Added support for NetFlex3/E with nibble-rate
128 * 10Base-T PHY. This is untestet as I haven't got
129 * one of these cards.
130 * - Fixed timer being added twice.
131 * - Disabled PhyMonitoring by default as this is
132 * work in progress. Define MONITOR to enable it.
133 * - Now we don't display link info with PHYs that
134 * doesn't support it (level1).
135 * - Incresed tx_timeout beacuse of auto-neg.
136 * - Adjusted timers for forced speeds.
138 * v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.)
140 * v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues
141 * when link can't be established.
142 * - Added the bbuf option as a kernel parameter.
143 * - Fixed ioaddr probe bug.
144 * - Fixed stupid deadlock with MII interrupts.
145 * - Added support for speed/duplex selection with
147 * - Added partly fix for TX Channel lockup with
148 * TLAN v1.0 silicon. This needs to be investigated
151 * v1.14 Dec 16, 2000 - Added support for servicing multiple frames per.
152 * interrupt. Thanks goes to
153 * Adam Keys <adam@ti.com>
154 * Denis Beaudoin <dbeaudoin@ti.com>
155 * for providing the patch.
156 * - Fixed auto-neg output when using multiple
158 * - Converted to use new taskq interface.
160 * v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.)
162 * Samuel Chessman <chessman@tux.org> New Maintainer!
164 * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be
165 * 10T half duplex no loopback
166 * Thanks to Gunnar Eikman
167 *******************************************************************************/
169 #include <linux/module.h>
170 #include <linux/init.h>
171 #include <linux/ioport.h>
172 #include <linux/eisa.h>
173 #include <linux/pci.h>
174 #include <linux/dma-mapping.h>
175 #include <linux/netdevice.h>
176 #include <linux/etherdevice.h>
177 #include <linux/delay.h>
178 #include <linux/spinlock.h>
179 #include <linux/workqueue.h>
180 #include <linux/mii.h>
184 typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 );
187 /* For removing EISA devices */
188 static struct net_device *TLan_Eisa_Devices;
190 static int TLanDevicesInstalled;
192 /* Set speed, duplex and aui settings */
193 static int aui[MAX_TLAN_BOARDS];
194 static int duplex[MAX_TLAN_BOARDS];
195 static int speed[MAX_TLAN_BOARDS];
196 static int boards_found;
197 module_param_array(aui, int, NULL, 0);
198 module_param_array(duplex, int, NULL, 0);
199 module_param_array(speed, int, NULL, 0);
200 MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
201 MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
202 MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)");
204 MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
205 MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
206 MODULE_LICENSE("GPL");
209 /* Define this to enable Link beat monitoring */
212 /* Turn on debugging. See Documentation/networking/tlan.txt for details */
214 module_param(debug, int, 0);
215 MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
218 module_param(bbuf, int, 0);
219 MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)");
221 static const char TLanSignature[] = "TLAN";
222 static const char tlan_banner[] = "ThunderLAN driver v1.15\n";
223 static int tlan_have_pci;
224 static int tlan_have_eisa;
226 static const char *media[] = {
227 "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ",
228 "100baseTx-FD", "100baseT4", NULL
231 static struct board {
232 const char *deviceLabel;
236 { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
237 { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
238 { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
239 { "Compaq NetFlex-3/P", TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
240 { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
241 { "Compaq Netelligent Integrated 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
242 { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 },
243 { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 },
244 { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
245 { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 },
246 { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 },
247 { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
248 { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 },
249 { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
250 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
251 { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
254 static struct pci_device_id tlan_pci_tbl[] = {
255 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
256 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
257 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
258 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
259 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
260 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
261 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
262 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
263 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
264 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
265 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
266 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
267 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
268 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
269 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
270 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
271 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
272 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
273 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
274 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
275 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
276 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
277 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
278 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
279 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
280 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
283 MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
285 static void TLan_EisaProbe( void );
286 static void TLan_Eisa_Cleanup( void );
287 static int TLan_Init( struct net_device * );
288 static int TLan_Open( struct net_device *dev );
289 static int TLan_StartTx( struct sk_buff *, struct net_device *);
290 static irqreturn_t TLan_HandleInterrupt( int, void *);
291 static int TLan_Close( struct net_device *);
292 static struct net_device_stats *TLan_GetStats( struct net_device *);
293 static void TLan_SetMulticastList( struct net_device *);
294 static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd);
295 static int TLan_probe1( struct pci_dev *pdev, long ioaddr, int irq, int rev, const struct pci_device_id *ent);
296 static void TLan_tx_timeout( struct net_device *dev);
297 static void TLan_tx_timeout_work(struct work_struct *work);
298 static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent);
300 static u32 TLan_HandleTxEOF( struct net_device *, u16 );
301 static u32 TLan_HandleStatOverflow( struct net_device *, u16 );
302 static u32 TLan_HandleRxEOF( struct net_device *, u16 );
303 static u32 TLan_HandleDummy( struct net_device *, u16 );
304 static u32 TLan_HandleTxEOC( struct net_device *, u16 );
305 static u32 TLan_HandleStatusCheck( struct net_device *, u16 );
306 static u32 TLan_HandleRxEOC( struct net_device *, u16 );
308 static void TLan_Timer( unsigned long );
310 static void TLan_ResetLists( struct net_device * );
311 static void TLan_FreeLists( struct net_device * );
312 static void TLan_PrintDio( u16 );
313 static void TLan_PrintList( TLanList *, char *, int );
314 static void TLan_ReadAndClearStats( struct net_device *, int );
315 static void TLan_ResetAdapter( struct net_device * );
316 static void TLan_FinishReset( struct net_device * );
317 static void TLan_SetMac( struct net_device *, int areg, char *mac );
319 static void TLan_PhyPrint( struct net_device * );
320 static void TLan_PhyDetect( struct net_device * );
321 static void TLan_PhyPowerDown( struct net_device * );
322 static void TLan_PhyPowerUp( struct net_device * );
323 static void TLan_PhyReset( struct net_device * );
324 static void TLan_PhyStartLink( struct net_device * );
325 static void TLan_PhyFinishAutoNeg( struct net_device * );
327 static void TLan_PhyMonitor( struct net_device * );
331 static int TLan_PhyNop( struct net_device * );
332 static int TLan_PhyInternalCheck( struct net_device * );
333 static int TLan_PhyInternalService( struct net_device * );
334 static int TLan_PhyDp83840aCheck( struct net_device * );
337 static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * );
338 static void TLan_MiiSendData( u16, u32, unsigned );
339 static void TLan_MiiSync( u16 );
340 static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 );
342 static void TLan_EeSendStart( u16 );
343 static int TLan_EeSendByte( u16, u8, int );
344 static void TLan_EeReceiveByte( u16, u8 *, int );
345 static int TLan_EeReadByte( struct net_device *, u8, u8 * );
349 TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb)
351 unsigned long addr = (unsigned long)skb;
352 tag->buffer[9].address = addr;
353 tag->buffer[8].address = upper_32_bits(addr);
356 static inline struct sk_buff *
357 TLan_GetSKB( const struct tlan_list_tag *tag)
361 addr = tag->buffer[8].address;
362 addr |= (tag->buffer[9].address << 16) << 16;
363 return (struct sk_buff *) addr;
367 static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = {
370 TLan_HandleStatOverflow,
374 TLan_HandleStatusCheck,
379 TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type )
381 TLanPrivateInfo *priv = netdev_priv(dev);
382 unsigned long flags = 0;
385 spin_lock_irqsave(&priv->lock, flags);
386 if ( priv->timer.function != NULL &&
387 priv->timerType != TLAN_TIMER_ACTIVITY ) {
389 spin_unlock_irqrestore(&priv->lock, flags);
392 priv->timer.function = &TLan_Timer;
394 spin_unlock_irqrestore(&priv->lock, flags);
396 priv->timer.data = (unsigned long) dev;
397 priv->timerSetAt = jiffies;
398 priv->timerType = type;
399 mod_timer(&priv->timer, jiffies + ticks);
401 } /* TLan_SetTimer */
404 /*****************************************************************************
405 ******************************************************************************
407 ThunderLAN Driver Primary Functions
409 These functions are more or less common to all Linux network drivers.
411 ******************************************************************************
412 *****************************************************************************/
418 /***************************************************************
426 * Goes through the TLanDevices list and frees the device
427 * structs and memory associated with each device (lists
428 * and buffers). It also ureserves the IO port regions
429 * associated with this device.
431 **************************************************************/
434 static void __devexit tlan_remove_one( struct pci_dev *pdev)
436 struct net_device *dev = pci_get_drvdata( pdev );
437 TLanPrivateInfo *priv = netdev_priv(dev);
439 unregister_netdev( dev );
441 if ( priv->dmaStorage ) {
442 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA );
446 pci_release_regions(pdev);
451 pci_set_drvdata( pdev, NULL );
454 static struct pci_driver tlan_driver = {
456 .id_table = tlan_pci_tbl,
457 .probe = tlan_init_one,
458 .remove = __devexit_p(tlan_remove_one),
461 static int __init tlan_probe(void)
465 printk(KERN_INFO "%s", tlan_banner);
467 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
469 /* Use new style PCI probing. Now the kernel will
470 do most of this for us */
471 rc = pci_register_driver(&tlan_driver);
474 printk(KERN_ERR "TLAN: Could not register pci driver.\n");
475 goto err_out_pci_free;
478 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
481 printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n",
482 TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s",
483 tlan_have_pci, tlan_have_eisa);
485 if (TLanDevicesInstalled == 0) {
487 goto err_out_pci_unreg;
492 pci_unregister_driver(&tlan_driver);
498 static int __devinit tlan_init_one( struct pci_dev *pdev,
499 const struct pci_device_id *ent)
501 return TLan_probe1( pdev, -1, -1, 0, ent);
506 ***************************************************************
510 * 0 on success, error code on error
514 * The name is lower case to fit in with all the rest of
515 * the netcard_probe names. This function looks for
516 * another TLan based adapter, setting it up with the
517 * allocated device struct if one is found.
518 * tlan_probe has been ported to the new net API and
519 * now allocates its own device structure. This function
520 * is also used by modules.
522 **************************************************************/
524 static int __devinit TLan_probe1(struct pci_dev *pdev,
525 long ioaddr, int irq, int rev, const struct pci_device_id *ent )
528 struct net_device *dev;
529 TLanPrivateInfo *priv;
531 int reg, rc = -ENODEV;
535 rc = pci_enable_device(pdev);
539 rc = pci_request_regions(pdev, TLanSignature);
541 printk(KERN_ERR "TLAN: Could not reserve IO regions\n");
545 #endif /* CONFIG_PCI */
547 dev = alloc_etherdev(sizeof(TLanPrivateInfo));
549 printk(KERN_ERR "TLAN: Could not allocate memory for device.\n");
551 goto err_out_regions;
553 SET_NETDEV_DEV(dev, &pdev->dev);
555 priv = netdev_priv(dev);
560 /* Is this a PCI device? */
564 priv->adapter = &board_info[ent->driver_data];
566 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
568 printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n");
569 goto err_out_free_dev;
572 for ( reg= 0; reg <= 5; reg ++ ) {
573 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
574 pci_io_base = pci_resource_start(pdev, reg);
575 TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n",
581 printk(KERN_ERR "TLAN: No IO mappings available\n");
583 goto err_out_free_dev;
586 dev->base_addr = pci_io_base;
587 dev->irq = pdev->irq;
588 priv->adapterRev = pdev->revision;
589 pci_set_master(pdev);
590 pci_set_drvdata(pdev, dev);
592 } else { /* EISA card */
593 /* This is a hack. We need to know which board structure
594 * is suited for this adapter */
595 device_id = inw(ioaddr + EISA_ID2);
597 if (device_id == 0x20F1) {
598 priv->adapter = &board_info[13]; /* NetFlex-3/E */
599 priv->adapterRev = 23; /* TLAN 2.3 */
601 priv->adapter = &board_info[14];
602 priv->adapterRev = 10; /* TLAN 1.0 */
604 dev->base_addr = ioaddr;
608 /* Kernel parameters */
609 if (dev->mem_start) {
610 priv->aui = dev->mem_start & 0x01;
611 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 : (dev->mem_start & 0x06) >> 1;
612 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 : (dev->mem_start & 0x18) >> 3;
614 if (priv->speed == 0x1) {
615 priv->speed = TLAN_SPEED_10;
616 } else if (priv->speed == 0x2) {
617 priv->speed = TLAN_SPEED_100;
619 debug = priv->debug = dev->mem_end;
621 priv->aui = aui[boards_found];
622 priv->speed = speed[boards_found];
623 priv->duplex = duplex[boards_found];
627 /* This will be used when we get an adapter error from
628 * within our irq handler */
629 INIT_WORK(&priv->tlan_tqueue, TLan_tx_timeout_work);
631 spin_lock_init(&priv->lock);
635 printk(KERN_ERR "TLAN: Could not set up device.\n");
636 goto err_out_free_dev;
639 rc = register_netdev(dev);
641 printk(KERN_ERR "TLAN: Could not register device.\n");
646 TLanDevicesInstalled++;
649 /* pdev is NULL if this is an EISA device */
653 priv->nextDevice = TLan_Eisa_Devices;
654 TLan_Eisa_Devices = dev;
658 printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n",
661 (int) dev->base_addr,
662 priv->adapter->deviceLabel,
667 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage,
668 priv->dmaStorageDMA );
674 pci_release_regions(pdev);
678 pci_disable_device(pdev);
683 static void TLan_Eisa_Cleanup(void)
685 struct net_device *dev;
686 TLanPrivateInfo *priv;
688 while( tlan_have_eisa ) {
689 dev = TLan_Eisa_Devices;
690 priv = netdev_priv(dev);
691 if (priv->dmaStorage) {
692 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA );
694 release_region( dev->base_addr, 0x10);
695 unregister_netdev( dev );
696 TLan_Eisa_Devices = priv->nextDevice;
703 static void __exit tlan_exit(void)
705 pci_unregister_driver(&tlan_driver);
713 /* Module loading/unloading */
714 module_init(tlan_probe);
715 module_exit(tlan_exit);
719 /**************************************************************
722 * Returns: 0 on success, 1 otherwise
727 * This functions probes for EISA devices and calls
728 * TLan_probe1 when one is found.
730 *************************************************************/
732 static void __init TLan_EisaProbe (void)
740 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
744 /* Loop through all slots of the EISA bus */
745 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
747 TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID));
748 TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2));
751 TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ",
753 if (request_region(ioaddr, 0x10, TLanSignature) == NULL)
756 if (inw(ioaddr + EISA_ID) != 0x110E) {
757 release_region(ioaddr, 0x10);
761 device_id = inw(ioaddr + EISA_ID2);
762 if (device_id != 0x20F1 && device_id != 0x40F1) {
763 release_region (ioaddr, 0x10);
767 if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */
768 release_region (ioaddr, 0x10);
773 printk("Found one\n");
776 /* Get irq from board */
777 switch (inb(ioaddr + 0xCC0)) {
795 /* Setup the newly found eisa adapter */
796 rc = TLan_probe1( NULL, ioaddr, irq,
802 printk("None found\n");
805 out2: if (debug == 0x10)
806 printk("Card found but it is not enabled, skipping\n");
811 } /* TLan_EisaProbe */
813 #ifdef CONFIG_NET_POLL_CONTROLLER
814 static void TLan_Poll(struct net_device *dev)
816 disable_irq(dev->irq);
817 TLan_HandleInterrupt(dev->irq, dev);
818 enable_irq(dev->irq);
825 /***************************************************************
829 * 0 on success, error code otherwise.
831 * dev The structure of the device to be
834 * This function completes the initialization of the
835 * device structure and driver. It reserves the IO
836 * addresses, allocates memory for the lists and bounce
837 * buffers, retrieves the MAC address from the eeprom
838 * and assignes the device's methods.
840 **************************************************************/
842 static int TLan_Init( struct net_device *dev )
847 TLanPrivateInfo *priv;
849 priv = netdev_priv(dev);
852 dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
853 * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE );
855 dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
856 * ( sizeof(TLanList) );
858 priv->dmaStorage = pci_alloc_consistent(priv->pciDev,
859 dma_size, &priv->dmaStorageDMA);
860 priv->dmaSize = dma_size;
862 if ( priv->dmaStorage == NULL ) {
863 printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n",
867 memset( priv->dmaStorage, 0, dma_size );
868 priv->rxList = (TLanList *) ALIGN((unsigned long)priv->dmaStorage, 8);
869 priv->rxListDMA = ALIGN(priv->dmaStorageDMA, 8);
870 priv->txList = priv->rxList + TLAN_NUM_RX_LISTS;
871 priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS;
874 priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS );
875 priv->rxBufferDMA =priv->txListDMA + sizeof(TLanList) * TLAN_NUM_TX_LISTS;
876 priv->txBuffer = priv->rxBuffer + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
877 priv->txBufferDMA = priv->rxBufferDMA + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
881 for ( i = 0; i < 6 ; i++ )
882 err |= TLan_EeReadByte( dev,
883 (u8) priv->adapter->addrOfs + i,
884 (u8 *) &dev->dev_addr[i] );
886 printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n",
892 netif_carrier_off(dev);
895 dev->open = &TLan_Open;
896 dev->hard_start_xmit = &TLan_StartTx;
897 dev->stop = &TLan_Close;
898 dev->get_stats = &TLan_GetStats;
899 dev->set_multicast_list = &TLan_SetMulticastList;
900 dev->do_ioctl = &TLan_ioctl;
901 #ifdef CONFIG_NET_POLL_CONTROLLER
902 dev->poll_controller = &TLan_Poll;
904 dev->tx_timeout = &TLan_tx_timeout;
905 dev->watchdog_timeo = TX_TIMEOUT;
914 /***************************************************************
918 * 0 on success, error code otherwise.
920 * dev Structure of device to be opened.
922 * This routine puts the driver and TLAN adapter in a
923 * state where it is ready to send and receive packets.
924 * It allocates the IRQ, resets and brings the adapter
925 * out of reset, and allows interrupts. It also delays
926 * the startup for autonegotiation or sends a Rx GO
927 * command to the adapter, as appropriate.
929 **************************************************************/
931 static int TLan_Open( struct net_device *dev )
933 TLanPrivateInfo *priv = netdev_priv(dev);
936 priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION );
937 err = request_irq( dev->irq, TLan_HandleInterrupt, IRQF_SHARED,
941 printk(KERN_ERR "TLAN: Cannot open %s because IRQ %d is already in use.\n", dev->name, dev->irq );
945 init_timer(&priv->timer);
946 netif_start_queue(dev);
948 /* NOTE: It might not be necessary to read the stats before a
949 reset if you don't care what the values are.
951 TLan_ResetLists( dev );
952 TLan_ReadAndClearStats( dev, TLAN_IGNORE );
953 TLan_ResetAdapter( dev );
955 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", dev->name, priv->tlanRev );
963 /**************************************************************
967 * 0 on success, error code otherwise
969 * dev structure of device to receive ioctl.
971 * rq ifreq structure to hold userspace data.
976 *************************************************************/
978 static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
980 TLanPrivateInfo *priv = netdev_priv(dev);
981 struct mii_ioctl_data *data = if_mii(rq);
982 u32 phy = priv->phy[priv->phyNum];
984 if (!priv->phyOnline)
988 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
992 case SIOCGMIIREG: /* Read MII PHY register. */
993 TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out);
997 case SIOCSMIIREG: /* Write MII PHY register. */
998 if (!capable(CAP_NET_ADMIN))
1000 TLan_MiiWriteReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
1008 /***************************************************************
1014 * dev structure of device which timed out
1017 **************************************************************/
1019 static void TLan_tx_timeout(struct net_device *dev)
1022 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
1024 /* Ok so we timed out, lets see what we can do about it...*/
1025 TLan_FreeLists( dev );
1026 TLan_ResetLists( dev );
1027 TLan_ReadAndClearStats( dev, TLAN_IGNORE );
1028 TLan_ResetAdapter( dev );
1029 dev->trans_start = jiffies;
1030 netif_wake_queue( dev );
1035 /***************************************************************
1036 * TLan_tx_timeout_work
1041 * work work item of device which timed out
1043 **************************************************************/
1045 static void TLan_tx_timeout_work(struct work_struct *work)
1047 TLanPrivateInfo *priv =
1048 container_of(work, TLanPrivateInfo, tlan_tqueue);
1050 TLan_tx_timeout(priv->dev);
1055 /***************************************************************
1059 * 0 on success, non-zero on failure.
1061 * skb A pointer to the sk_buff containing the
1063 * dev The device to send the data on.
1065 * This function adds a frame to the Tx list to be sent
1066 * ASAP. First it verifies that the adapter is ready and
1067 * there is room in the queue. Then it sets up the next
1068 * available list, copies the frame to the corresponding
1069 * buffer. If the adapter Tx channel is idle, it gives
1070 * the adapter a Tx Go command on the list, otherwise it
1071 * sets the forward address of the previous list to point
1072 * to this one. Then it frees the sk_buff.
1074 **************************************************************/
1076 static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev )
1078 TLanPrivateInfo *priv = netdev_priv(dev);
1079 TLanList *tail_list;
1080 dma_addr_t tail_list_phys;
1082 unsigned long flags;
1084 if ( ! priv->phyOnline ) {
1085 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", dev->name );
1086 dev_kfree_skb_any(skb);
1090 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
1093 tail_list = priv->txList + priv->txTail;
1094 tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail;
1096 if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) {
1097 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", dev->name, priv->txHead, priv->txTail );
1098 netif_stop_queue(dev);
1099 priv->txBusyCount++;
1103 tail_list->forward = 0;
1106 tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE );
1107 skb_copy_from_linear_data(skb, tail_buffer, skb->len);
1109 tail_list->buffer[0].address = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE);
1110 TLan_StoreSKB(tail_list, skb);
1113 tail_list->frameSize = (u16) skb->len;
1114 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len;
1115 tail_list->buffer[1].count = 0;
1116 tail_list->buffer[1].address = 0;
1118 spin_lock_irqsave(&priv->lock, flags);
1119 tail_list->cStat = TLAN_CSTAT_READY;
1120 if ( ! priv->txInProgress ) {
1121 priv->txInProgress = 1;
1122 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Starting TX on buffer %d\n", priv->txTail );
1123 outl( tail_list_phys, dev->base_addr + TLAN_CH_PARM );
1124 outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD );
1126 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channel\n", priv->txTail );
1127 if ( priv->txTail == 0 ) {
1128 ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = tail_list_phys;
1130 ( priv->txList + ( priv->txTail - 1 ) )->forward = tail_list_phys;
1133 spin_unlock_irqrestore(&priv->lock, flags);
1135 CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS );
1138 dev_kfree_skb_any(skb);
1140 dev->trans_start = jiffies;
1143 } /* TLan_StartTx */
1148 /***************************************************************
1149 * TLan_HandleInterrupt
1154 * irq The line on which the interrupt
1156 * dev_id A pointer to the device assigned to
1159 * This function handles an interrupt generated by its
1160 * assigned TLAN adapter. The function deactivates
1161 * interrupts on its adapter, records the type of
1162 * interrupt, executes the appropriate subhandler, and
1163 * acknowdges the interrupt to the adapter (thus
1164 * re-enabling adapter interrupts.
1166 **************************************************************/
1168 static irqreturn_t TLan_HandleInterrupt(int irq, void *dev_id)
1170 struct net_device *dev = dev_id;
1171 TLanPrivateInfo *priv = netdev_priv(dev);
1175 spin_lock(&priv->lock);
1177 host_int = inw( dev->base_addr + TLAN_HOST_INT );
1178 type = ( host_int & TLAN_HI_IT_MASK ) >> 2;
1183 outw( host_int, dev->base_addr + TLAN_HOST_INT );
1184 ack = TLanIntVector[type]( dev, host_int );
1187 host_cmd = TLAN_HC_ACK | ack | ( type << 18 );
1188 outl( host_cmd, dev->base_addr + TLAN_HOST_CMD );
1192 spin_unlock(&priv->lock);
1194 return IRQ_RETVAL(type);
1195 } /* TLan_HandleInterrupts */
1200 /***************************************************************
1206 * dev The device structure of the device to
1209 * This function shuts down the adapter. It records any
1210 * stats, puts the adapter into reset state, deactivates
1211 * its time as needed, and frees the irq it is using.
1213 **************************************************************/
1215 static int TLan_Close(struct net_device *dev)
1217 TLanPrivateInfo *priv = netdev_priv(dev);
1219 netif_stop_queue(dev);
1220 priv->neg_be_verbose = 0;
1222 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1223 outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
1224 if ( priv->timer.function != NULL ) {
1225 del_timer_sync( &priv->timer );
1226 priv->timer.function = NULL;
1229 free_irq( dev->irq, dev );
1230 TLan_FreeLists( dev );
1231 TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name );
1240 /***************************************************************
1244 * A pointer to the device's statistics structure.
1246 * dev The device structure to return the
1249 * This function updates the devices statistics by reading
1250 * the TLAN chip's onboard registers. Then it returns the
1251 * address of the statistics structure.
1253 **************************************************************/
1255 static struct net_device_stats *TLan_GetStats( struct net_device *dev )
1257 TLanPrivateInfo *priv = netdev_priv(dev);
1260 /* Should only read stats if open ? */
1261 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1263 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, priv->rxEocCount );
1264 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, priv->txBusyCount );
1265 if ( debug & TLAN_DEBUG_GNRL ) {
1266 TLan_PrintDio( dev->base_addr );
1267 TLan_PhyPrint( dev );
1269 if ( debug & TLAN_DEBUG_LIST ) {
1270 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ )
1271 TLan_PrintList( priv->rxList + i, "RX", i );
1272 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ )
1273 TLan_PrintList( priv->txList + i, "TX", i );
1278 } /* TLan_GetStats */
1283 /***************************************************************
1284 * TLan_SetMulticastList
1289 * dev The device structure to set the
1290 * multicast list for.
1292 * This function sets the TLAN adaptor to various receive
1293 * modes. If the IFF_PROMISC flag is set, promiscuous
1294 * mode is acitviated. Otherwise, promiscuous mode is
1295 * turned off. If the IFF_ALLMULTI flag is set, then
1296 * the hash table is set to receive all group addresses.
1297 * Otherwise, the first three multicast addresses are
1298 * stored in AREG_1-3, and the rest are selected via the
1299 * hash table, as necessary.
1301 **************************************************************/
1303 static void TLan_SetMulticastList( struct net_device *dev )
1305 struct dev_mc_list *dmi = dev->mc_list;
1312 if ( dev->flags & IFF_PROMISC ) {
1313 tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
1314 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF );
1316 tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
1317 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF );
1318 if ( dev->flags & IFF_ALLMULTI ) {
1319 for ( i = 0; i < 3; i++ )
1320 TLan_SetMac( dev, i + 1, NULL );
1321 TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF );
1322 TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF );
1324 for ( i = 0; i < dev->mc_count; i++ ) {
1326 TLan_SetMac( dev, i + 1, (char *) &dmi->dmi_addr );
1328 offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr );
1330 hash1 |= ( 1 << offset );
1332 hash2 |= ( 1 << ( offset - 32 ) );
1336 for ( ; i < 3; i++ )
1337 TLan_SetMac( dev, i + 1, NULL );
1338 TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 );
1339 TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 );
1343 } /* TLan_SetMulticastList */
1347 /*****************************************************************************
1348 ******************************************************************************
1350 ThunderLAN Driver Interrupt Vectors and Table
1352 Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN
1353 Programmer's Guide" for more informations on handling interrupts
1354 generated by TLAN based adapters.
1356 ******************************************************************************
1357 *****************************************************************************/
1362 /***************************************************************
1368 * dev Device assigned the IRQ that was
1370 * host_int The contents of the HOST_INT
1373 * This function handles Tx EOF interrupts which are raised
1374 * by the adapter when it has completed sending the
1375 * contents of a buffer. If detemines which list/buffer
1376 * was completed and resets it. If the buffer was the last
1377 * in the channel (EOC), then the function checks to see if
1378 * another buffer is ready to send, and if so, sends a Tx
1379 * Go command. Finally, the driver activates/continues the
1382 **************************************************************/
1384 static u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int )
1386 TLanPrivateInfo *priv = netdev_priv(dev);
1388 TLanList *head_list;
1389 dma_addr_t head_list_phys;
1393 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", priv->txHead, priv->txTail );
1394 head_list = priv->txList + priv->txHead;
1396 while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
1399 struct sk_buff *skb = TLan_GetSKB(head_list);
1400 pci_unmap_single(priv->pciDev, head_list->buffer[0].address, skb->len, PCI_DMA_TODEVICE);
1401 dev_kfree_skb_any(skb);
1402 head_list->buffer[8].address = 0;
1403 head_list->buffer[9].address = 0;
1406 if ( tmpCStat & TLAN_CSTAT_EOC )
1409 dev->stats.tx_bytes += head_list->frameSize;
1411 head_list->cStat = TLAN_CSTAT_UNUSED;
1412 netif_start_queue(dev);
1413 CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS );
1414 head_list = priv->txList + priv->txHead;
1418 printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n");
1421 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n", priv->txHead, priv->txTail );
1422 head_list = priv->txList + priv->txHead;
1423 head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
1424 if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
1425 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
1428 priv->txInProgress = 0;
1432 if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
1433 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
1434 if ( priv->timer.function == NULL ) {
1435 priv->timer.function = &TLan_Timer;
1436 priv->timer.data = (unsigned long) dev;
1437 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1438 priv->timerSetAt = jiffies;
1439 priv->timerType = TLAN_TIMER_ACTIVITY;
1440 add_timer(&priv->timer);
1441 } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
1442 priv->timerSetAt = jiffies;
1448 } /* TLan_HandleTxEOF */
1453 /***************************************************************
1454 * TLan_HandleStatOverflow
1459 * dev Device assigned the IRQ that was
1461 * host_int The contents of the HOST_INT
1464 * This function handles the Statistics Overflow interrupt
1465 * which means that one or more of the TLAN statistics
1466 * registers has reached 1/2 capacity and needs to be read.
1468 **************************************************************/
1470 static u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int )
1472 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1476 } /* TLan_HandleStatOverflow */
1481 /***************************************************************
1487 * dev Device assigned the IRQ that was
1489 * host_int The contents of the HOST_INT
1492 * This function handles the Rx EOF interrupt which
1493 * indicates a frame has been received by the adapter from
1494 * the net and the frame has been transferred to memory.
1495 * The function determines the bounce buffer the frame has
1496 * been loaded into, creates a new sk_buff big enough to
1497 * hold the frame, and sends it to protocol stack. It
1498 * then resets the used buffer and appends it to the end
1499 * of the list. If the frame was the last in the Rx
1500 * channel (EOC), the function restarts the receive channel
1501 * by sending an Rx Go command to the adapter. Then it
1502 * activates/continues the activity LED.
1504 **************************************************************/
1506 static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int )
1508 TLanPrivateInfo *priv = netdev_priv(dev);
1512 TLanList *head_list;
1513 struct sk_buff *skb;
1514 TLanList *tail_list;
1516 dma_addr_t head_list_phys;
1518 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail );
1519 head_list = priv->rxList + priv->rxHead;
1520 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1522 while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
1523 dma_addr_t frameDma = head_list->buffer[0].address;
1524 u32 frameSize = head_list->frameSize;
1526 if (tmpCStat & TLAN_CSTAT_EOC)
1530 skb = netdev_alloc_skb(dev, frameSize + 7);
1532 head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE);
1533 skb_reserve(skb, 2);
1534 pci_dma_sync_single_for_cpu(priv->pciDev,
1535 frameDma, frameSize,
1536 PCI_DMA_FROMDEVICE);
1537 skb_copy_from_linear_data(skb, head_buffer, frameSize);
1538 skb_put(skb, frameSize);
1539 dev->stats.rx_bytes += frameSize;
1541 skb->protocol = eth_type_trans( skb, dev );
1545 struct sk_buff *new_skb;
1547 new_skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 );
1549 skb = TLan_GetSKB(head_list);
1550 pci_unmap_single(priv->pciDev, frameDma, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
1551 skb_put( skb, frameSize );
1553 dev->stats.rx_bytes += frameSize;
1555 skb->protocol = eth_type_trans( skb, dev );
1558 skb_reserve( new_skb, NET_IP_ALIGN );
1559 head_list->buffer[0].address = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
1561 TLan_StoreSKB(head_list, new_skb);
1566 head_list->forward = 0;
1567 head_list->cStat = 0;
1568 tail_list = priv->rxList + priv->rxTail;
1569 tail_list->forward = head_list_phys;
1571 CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS );
1572 CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS );
1573 head_list = priv->rxList + priv->rxHead;
1574 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1578 printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n");
1584 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail );
1585 head_list = priv->rxList + priv->rxHead;
1586 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1587 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
1588 ack |= TLAN_HC_GO | TLAN_HC_RT;
1592 if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
1593 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
1594 if ( priv->timer.function == NULL ) {
1595 priv->timer.function = &TLan_Timer;
1596 priv->timer.data = (unsigned long) dev;
1597 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1598 priv->timerSetAt = jiffies;
1599 priv->timerType = TLAN_TIMER_ACTIVITY;
1600 add_timer(&priv->timer);
1601 } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
1602 priv->timerSetAt = jiffies;
1606 dev->last_rx = jiffies;
1610 } /* TLan_HandleRxEOF */
1615 /***************************************************************
1621 * dev Device assigned the IRQ that was
1623 * host_int The contents of the HOST_INT
1626 * This function handles the Dummy interrupt, which is
1627 * raised whenever a test interrupt is generated by setting
1628 * the Req_Int bit of HOST_CMD to 1.
1630 **************************************************************/
1632 static u32 TLan_HandleDummy( struct net_device *dev, u16 host_int )
1634 printk( "TLAN: Test interrupt on %s.\n", dev->name );
1637 } /* TLan_HandleDummy */
1642 /***************************************************************
1648 * dev Device assigned the IRQ that was
1650 * host_int The contents of the HOST_INT
1653 * This driver is structured to determine EOC occurrences by
1654 * reading the CSTAT member of the list structure. Tx EOC
1655 * interrupts are disabled via the DIO INTDIS register.
1656 * However, TLAN chips before revision 3.0 didn't have this
1657 * functionality, so process EOC events if this is the
1660 **************************************************************/
1662 static u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int )
1664 TLanPrivateInfo *priv = netdev_priv(dev);
1665 TLanList *head_list;
1666 dma_addr_t head_list_phys;
1670 if ( priv->tlanRev < 0x30 ) {
1671 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", priv->txHead, priv->txTail );
1672 head_list = priv->txList + priv->txHead;
1673 head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
1674 if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
1675 netif_stop_queue(dev);
1676 outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
1679 priv->txInProgress = 0;
1685 } /* TLan_HandleTxEOC */
1690 /***************************************************************
1691 * TLan_HandleStatusCheck
1694 * 0 if Adapter check, 1 if Network Status check.
1696 * dev Device assigned the IRQ that was
1698 * host_int The contents of the HOST_INT
1701 * This function handles Adapter Check/Network Status
1702 * interrupts generated by the adapter. It checks the
1703 * vector in the HOST_INT register to determine if it is
1704 * an Adapter Check interrupt. If so, it resets the
1705 * adapter. Otherwise it clears the status registers
1706 * and services the PHY.
1708 **************************************************************/
1710 static u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int )
1712 TLanPrivateInfo *priv = netdev_priv(dev);
1721 if ( host_int & TLAN_HI_IV_MASK ) {
1722 netif_stop_queue( dev );
1723 error = inl( dev->base_addr + TLAN_CH_PARM );
1724 printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error );
1725 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1726 outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
1728 schedule_work(&priv->tlan_tqueue);
1730 netif_wake_queue(dev);
1733 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name );
1734 phy = priv->phy[priv->phyNum];
1736 net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS );
1738 TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts );
1739 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n", dev->name, (unsigned) net_sts );
1741 if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) {
1742 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts );
1743 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
1744 if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
1745 tlphy_ctl |= TLAN_TC_SWAPOL;
1746 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
1747 } else if ( ( tlphy_sts & TLAN_TS_POLOK ) && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
1748 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1749 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
1753 TLan_PhyPrint( dev );
1760 } /* TLan_HandleStatusCheck */
1765 /***************************************************************
1771 * dev Device assigned the IRQ that was
1773 * host_int The contents of the HOST_INT
1776 * This driver is structured to determine EOC occurrences by
1777 * reading the CSTAT member of the list structure. Rx EOC
1778 * interrupts are disabled via the DIO INTDIS register.
1779 * However, TLAN chips before revision 3.0 didn't have this
1780 * CSTAT member or a INTDIS register, so if this chip is
1781 * pre-3.0, process EOC interrupts normally.
1783 **************************************************************/
1785 static u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int )
1787 TLanPrivateInfo *priv = netdev_priv(dev);
1788 dma_addr_t head_list_phys;
1791 if ( priv->tlanRev < 0x30 ) {
1792 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", priv->rxHead, priv->rxTail );
1793 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1794 outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
1795 ack |= TLAN_HC_GO | TLAN_HC_RT;
1801 } /* TLan_HandleRxEOC */
1806 /*****************************************************************************
1807 ******************************************************************************
1809 ThunderLAN Driver Timer Function
1811 ******************************************************************************
1812 *****************************************************************************/
1815 /***************************************************************
1821 * data A value given to add timer when
1822 * add_timer was called.
1824 * This function handles timed functionality for the
1825 * TLAN driver. The two current timer uses are for
1826 * delaying for autonegotionation and driving the ACT LED.
1827 * - Autonegotiation requires being allowed about
1828 * 2 1/2 seconds before attempting to transmit a
1829 * packet. It would be a very bad thing to hang
1830 * the kernel this long, so the driver doesn't
1831 * allow transmission 'til after this time, for
1832 * certain PHYs. It would be much nicer if all
1833 * PHYs were interrupt-capable like the internal
1835 * - The ACT LED, which shows adapter activity, is
1836 * driven by the driver, and so must be left on
1837 * for a short period to power up the LED so it
1838 * can be seen. This delay can be changed by
1839 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1840 * if desired. 100 ms produces a slightly
1841 * sluggish response.
1843 **************************************************************/
1845 static void TLan_Timer( unsigned long data )
1847 struct net_device *dev = (struct net_device *) data;
1848 TLanPrivateInfo *priv = netdev_priv(dev);
1850 unsigned long flags = 0;
1852 priv->timer.function = NULL;
1854 switch ( priv->timerType ) {
1856 case TLAN_TIMER_LINK_BEAT:
1857 TLan_PhyMonitor( dev );
1860 case TLAN_TIMER_PHY_PDOWN:
1861 TLan_PhyPowerDown( dev );
1863 case TLAN_TIMER_PHY_PUP:
1864 TLan_PhyPowerUp( dev );
1866 case TLAN_TIMER_PHY_RESET:
1867 TLan_PhyReset( dev );
1869 case TLAN_TIMER_PHY_START_LINK:
1870 TLan_PhyStartLink( dev );
1872 case TLAN_TIMER_PHY_FINISH_AN:
1873 TLan_PhyFinishAutoNeg( dev );
1875 case TLAN_TIMER_FINISH_RESET:
1876 TLan_FinishReset( dev );
1878 case TLAN_TIMER_ACTIVITY:
1879 spin_lock_irqsave(&priv->lock, flags);
1880 if ( priv->timer.function == NULL ) {
1881 elapsed = jiffies - priv->timerSetAt;
1882 if ( elapsed >= TLAN_TIMER_ACT_DELAY ) {
1883 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
1885 priv->timer.function = &TLan_Timer;
1886 priv->timer.expires = priv->timerSetAt + TLAN_TIMER_ACT_DELAY;
1887 spin_unlock_irqrestore(&priv->lock, flags);
1888 add_timer( &priv->timer );
1892 spin_unlock_irqrestore(&priv->lock, flags);
1903 /*****************************************************************************
1904 ******************************************************************************
1906 ThunderLAN Driver Adapter Related Routines
1908 ******************************************************************************
1909 *****************************************************************************/
1912 /***************************************************************
1918 * dev The device structure with the list
1919 * stuctures to be reset.
1921 * This routine sets the variables associated with managing
1922 * the TLAN lists to their initial values.
1924 **************************************************************/
1926 static void TLan_ResetLists( struct net_device *dev )
1928 TLanPrivateInfo *priv = netdev_priv(dev);
1931 dma_addr_t list_phys;
1932 struct sk_buff *skb;
1937 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
1938 list = priv->txList + i;
1939 list->cStat = TLAN_CSTAT_UNUSED;
1941 list->buffer[0].address = priv->txBufferDMA + ( i * TLAN_MAX_FRAME_SIZE );
1943 list->buffer[0].address = 0;
1945 list->buffer[2].count = 0;
1946 list->buffer[2].address = 0;
1947 list->buffer[8].address = 0;
1948 list->buffer[9].address = 0;
1952 priv->rxTail = TLAN_NUM_RX_LISTS - 1;
1953 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
1954 list = priv->rxList + i;
1955 list_phys = priv->rxListDMA + sizeof(TLanList) * i;
1956 list->cStat = TLAN_CSTAT_READY;
1957 list->frameSize = TLAN_MAX_FRAME_SIZE;
1958 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
1960 list->buffer[0].address = priv->rxBufferDMA + ( i * TLAN_MAX_FRAME_SIZE );
1962 skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 );
1964 printk( "TLAN: Couldn't allocate memory for received data.\n" );
1968 skb_reserve( skb, NET_IP_ALIGN );
1969 list->buffer[0].address = pci_map_single(priv->pciDev, t, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
1970 TLan_StoreSKB(list, skb);
1972 list->buffer[1].count = 0;
1973 list->buffer[1].address = 0;
1974 list->forward = list_phys + sizeof(TLanList);
1977 /* in case ran out of memory early, clear bits */
1978 while (i < TLAN_NUM_RX_LISTS) {
1979 TLan_StoreSKB(priv->rxList + i, NULL);
1984 } /* TLan_ResetLists */
1987 static void TLan_FreeLists( struct net_device *dev )
1989 TLanPrivateInfo *priv = netdev_priv(dev);
1992 struct sk_buff *skb;
1995 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
1996 list = priv->txList + i;
1997 skb = TLan_GetSKB(list);
1999 pci_unmap_single(priv->pciDev, list->buffer[0].address, skb->len, PCI_DMA_TODEVICE);
2000 dev_kfree_skb_any( skb );
2001 list->buffer[8].address = 0;
2002 list->buffer[9].address = 0;
2006 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
2007 list = priv->rxList + i;
2008 skb = TLan_GetSKB(list);
2010 pci_unmap_single(priv->pciDev, list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
2011 dev_kfree_skb_any( skb );
2012 list->buffer[8].address = 0;
2013 list->buffer[9].address = 0;
2017 } /* TLan_FreeLists */
2022 /***************************************************************
2028 * io_base Base IO port of the device of
2029 * which to print DIO registers.
2031 * This function prints out all the internal (DIO)
2032 * registers of a TLAN chip.
2034 **************************************************************/
2036 static void TLan_PrintDio( u16 io_base )
2041 printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n", io_base );
2042 printk( "TLAN: Off. +0 +4\n" );
2043 for ( i = 0; i < 0x4C; i+= 8 ) {
2044 data0 = TLan_DioRead32( io_base, i );
2045 data1 = TLan_DioRead32( io_base, i + 0x4 );
2046 printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 );
2049 } /* TLan_PrintDio */
2054 /***************************************************************
2060 * list A pointer to the TLanList structure to
2062 * type A string to designate type of list,
2064 * num The index of the list.
2066 * This function prints out the contents of the list
2067 * pointed to by the list parameter.
2069 **************************************************************/
2071 static void TLan_PrintList( TLanList *list, char *type, int num)
2075 printk( "TLAN: %s List %d at %p\n", type, num, list );
2076 printk( "TLAN: Forward = 0x%08x\n", list->forward );
2077 printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat );
2078 printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize );
2079 /* for ( i = 0; i < 10; i++ ) { */
2080 for ( i = 0; i < 2; i++ ) {
2081 printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", i, list->buffer[i].count, list->buffer[i].address );
2084 } /* TLan_PrintList */
2089 /***************************************************************
2090 * TLan_ReadAndClearStats
2095 * dev Pointer to device structure of adapter
2096 * to which to read stats.
2097 * record Flag indicating whether to add
2099 * This functions reads all the internal status registers
2100 * of the TLAN chip, which clears them as a side effect.
2101 * It then either adds the values to the device's status
2102 * struct, or discards them, depending on whether record
2103 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2105 **************************************************************/
2107 static void TLan_ReadAndClearStats( struct net_device *dev, int record )
2109 u32 tx_good, tx_under;
2110 u32 rx_good, rx_over;
2111 u32 def_tx, crc, code;
2112 u32 multi_col, single_col;
2113 u32 excess_col, late_col, loss;
2115 outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR );
2116 tx_good = inb( dev->base_addr + TLAN_DIO_DATA );
2117 tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2118 tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
2119 tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2121 outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR );
2122 rx_good = inb( dev->base_addr + TLAN_DIO_DATA );
2123 rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2124 rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
2125 rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2127 outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR );
2128 def_tx = inb( dev->base_addr + TLAN_DIO_DATA );
2129 def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2130 crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2131 code = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2133 outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
2134 multi_col = inb( dev->base_addr + TLAN_DIO_DATA );
2135 multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2136 single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2137 single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8;
2139 outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
2140 excess_col = inb( dev->base_addr + TLAN_DIO_DATA );
2141 late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 );
2142 loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2145 dev->stats.rx_packets += rx_good;
2146 dev->stats.rx_errors += rx_over + crc + code;
2147 dev->stats.tx_packets += tx_good;
2148 dev->stats.tx_errors += tx_under + loss;
2149 dev->stats.collisions += multi_col + single_col + excess_col + late_col;
2151 dev->stats.rx_over_errors += rx_over;
2152 dev->stats.rx_crc_errors += crc;
2153 dev->stats.rx_frame_errors += code;
2155 dev->stats.tx_aborted_errors += tx_under;
2156 dev->stats.tx_carrier_errors += loss;
2159 } /* TLan_ReadAndClearStats */
2164 /***************************************************************
2170 * dev Pointer to device structure of adapter
2173 * This function resets the adapter and it's physical
2174 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2175 * Programmer's Guide" for details. The routine tries to
2176 * implement what is detailed there, though adjustments
2179 **************************************************************/
2182 TLan_ResetAdapter( struct net_device *dev )
2184 TLanPrivateInfo *priv = netdev_priv(dev);
2190 priv->tlanFullDuplex = FALSE;
2192 netif_carrier_off(dev);
2194 /* 1. Assert reset bit. */
2196 data = inl(dev->base_addr + TLAN_HOST_CMD);
2197 data |= TLAN_HC_AD_RST;
2198 outl(data, dev->base_addr + TLAN_HOST_CMD);
2202 /* 2. Turn off interrupts. ( Probably isn't necessary ) */
2204 data = inl(dev->base_addr + TLAN_HOST_CMD);
2205 data |= TLAN_HC_INT_OFF;
2206 outl(data, dev->base_addr + TLAN_HOST_CMD);
2208 /* 3. Clear AREGs and HASHs. */
2210 for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) {
2211 TLan_DioWrite32( dev->base_addr, (u16) i, 0 );
2214 /* 4. Setup NetConfig register. */
2216 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2217 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
2219 /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2221 outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD );
2222 outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD );
2224 /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2226 outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR );
2227 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
2228 TLan_SetBit( TLAN_NET_SIO_NMRST, addr );
2230 /* 7. Setup the remaining registers. */
2232 if ( priv->tlanRev >= 0x30 ) {
2233 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
2234 TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 );
2236 TLan_PhyDetect( dev );
2237 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
2239 if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) {
2240 data |= TLAN_NET_CFG_BIT;
2241 if ( priv->aui == 1 ) {
2242 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a );
2243 } else if ( priv->duplex == TLAN_DUPLEX_FULL ) {
2244 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 );
2245 priv->tlanFullDuplex = TRUE;
2247 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 );
2251 if ( priv->phyNum == 0 ) {
2252 data |= TLAN_NET_CFG_PHY_EN;
2254 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
2256 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2257 TLan_FinishReset( dev );
2259 TLan_PhyPowerDown( dev );
2262 } /* TLan_ResetAdapter */
2268 TLan_FinishReset( struct net_device *dev )
2270 TLanPrivateInfo *priv = netdev_priv(dev);
2278 u16 tlphy_id1, tlphy_id2;
2281 phy = priv->phy[priv->phyNum];
2283 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
2284 if ( priv->tlanFullDuplex ) {
2285 data |= TLAN_NET_CMD_DUPLEX;
2287 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data );
2288 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
2289 if ( priv->phyNum == 0 ) {
2290 data |= TLAN_NET_MASK_MASK7;
2292 TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data );
2293 TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 );
2294 TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 );
2295 TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 );
2297 if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || ( priv->aui ) ) {
2298 status = MII_GS_LINK;
2299 printk( "TLAN: %s: Link forced.\n", dev->name );
2301 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2303 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2304 if ( (status & MII_GS_LINK) && /* We only support link info on Nat.Sem. PHY's */
2305 (tlphy_id1 == NAT_SEM_ID1) &&
2306 (tlphy_id2 == NAT_SEM_ID2) ) {
2307 TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner );
2308 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par );
2310 printk( "TLAN: %s: Link active with ", dev->name );
2311 if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) {
2312 printk( "forced 10%sMbps %s-Duplex\n",
2313 tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
2314 tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
2316 printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n",
2317 tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
2318 tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
2319 printk("TLAN: Partner capability: ");
2320 for (i = 5; i <= 10; i++)
2321 if (partner & (1<<i))
2322 printk("%s",media[i-5]);
2326 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
2328 /* We have link beat..for now anyway */
2330 /*Enabling link beat monitoring */
2331 TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT );
2333 } else if (status & MII_GS_LINK) {
2334 printk( "TLAN: %s: Link active\n", dev->name );
2335 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
2339 if ( priv->phyNum == 0 ) {
2340 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
2341 tlphy_ctl |= TLAN_TC_INTEN;
2342 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl );
2343 sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO );
2344 sio |= TLAN_NET_SIO_MINTEN;
2345 TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio );
2348 if ( status & MII_GS_LINK ) {
2349 TLan_SetMac( dev, 0, dev->dev_addr );
2350 priv->phyOnline = 1;
2351 outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
2352 if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) {
2353 outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
2355 outl( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM );
2356 outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD );
2357 netif_carrier_on(dev);
2359 printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n", dev->name );
2360 TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET );
2363 TLan_SetMulticastList(dev);
2365 } /* TLan_FinishReset */
2370 /***************************************************************
2376 * dev Pointer to device structure of adapter
2377 * on which to change the AREG.
2378 * areg The AREG to set the address in (0 - 3).
2379 * mac A pointer to an array of chars. Each
2380 * element stores one byte of the address.
2381 * IE, it isn't in ascii.
2383 * This function transfers a MAC address to one of the
2384 * TLAN AREGs (address registers). The TLAN chip locks
2385 * the register on writing to offset 0 and unlocks the
2386 * register after writing to offset 5. If NULL is passed
2387 * in mac, then the AREG is filled with 0's.
2389 **************************************************************/
2391 static void TLan_SetMac( struct net_device *dev, int areg, char *mac )
2397 if ( mac != NULL ) {
2398 for ( i = 0; i < 6; i++ )
2399 TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, mac[i] );
2401 for ( i = 0; i < 6; i++ )
2402 TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, 0 );
2410 /*****************************************************************************
2411 ******************************************************************************
2413 ThunderLAN Driver PHY Layer Routines
2415 ******************************************************************************
2416 *****************************************************************************/
2420 /*********************************************************************
2426 * dev A pointer to the device structure of the
2427 * TLAN device having the PHYs to be detailed.
2429 * This function prints the registers a PHY (aka transceiver).
2431 ********************************************************************/
2433 static void TLan_PhyPrint( struct net_device *dev )
2435 TLanPrivateInfo *priv = netdev_priv(dev);
2436 u16 i, data0, data1, data2, data3, phy;
2438 phy = priv->phy[priv->phyNum];
2440 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2441 printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name );
2442 } else if ( phy <= TLAN_PHY_MAX_ADDR ) {
2443 printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy );
2444 printk( "TLAN: Off. +0 +1 +2 +3 \n" );
2445 for ( i = 0; i < 0x20; i+= 4 ) {
2446 printk( "TLAN: 0x%02x", i );
2447 TLan_MiiReadReg( dev, phy, i, &data0 );
2448 printk( " 0x%04hx", data0 );
2449 TLan_MiiReadReg( dev, phy, i + 1, &data1 );
2450 printk( " 0x%04hx", data1 );
2451 TLan_MiiReadReg( dev, phy, i + 2, &data2 );
2452 printk( " 0x%04hx", data2 );
2453 TLan_MiiReadReg( dev, phy, i + 3, &data3 );
2454 printk( " 0x%04hx\n", data3 );
2457 printk( "TLAN: Device %s, Invalid PHY.\n", dev->name );
2460 } /* TLan_PhyPrint */
2465 /*********************************************************************
2471 * dev A pointer to the device structure of the adapter
2472 * for which the PHY needs determined.
2474 * So far I've found that adapters which have external PHYs
2475 * may also use the internal PHY for part of the functionality.
2476 * (eg, AUI/Thinnet). This function finds out if this TLAN
2477 * chip has an internal PHY, and then finds the first external
2478 * PHY (starting from address 0) if it exists).
2480 ********************************************************************/
2482 static void TLan_PhyDetect( struct net_device *dev )
2484 TLanPrivateInfo *priv = netdev_priv(dev);
2490 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2491 priv->phyNum = 0xFFFF;
2495 TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi );
2497 if ( hi != 0xFFFF ) {
2498 priv->phy[0] = TLAN_PHY_MAX_ADDR;
2500 priv->phy[0] = TLAN_PHY_NONE;
2503 priv->phy[1] = TLAN_PHY_NONE;
2504 for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) {
2505 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control );
2506 TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi );
2507 TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo );
2508 if ( ( control != 0xFFFF ) || ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) {
2509 TLAN_DBG( TLAN_DEBUG_GNRL, "PHY found at %02x %04x %04x %04x\n", phy, control, hi, lo );
2510 if ( ( priv->phy[1] == TLAN_PHY_NONE ) && ( phy != TLAN_PHY_MAX_ADDR ) ) {
2516 if ( priv->phy[1] != TLAN_PHY_NONE ) {
2518 } else if ( priv->phy[0] != TLAN_PHY_NONE ) {
2521 printk( "TLAN: Cannot initialize device, no PHY was found!\n" );
2524 } /* TLan_PhyDetect */
2529 static void TLan_PhyPowerDown( struct net_device *dev )
2531 TLanPrivateInfo *priv = netdev_priv(dev);
2534 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name );
2535 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
2536 TLan_MiiSync( dev->base_addr );
2537 TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
2538 if ( ( priv->phyNum == 0 ) && ( priv->phy[1] != TLAN_PHY_NONE ) && ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) {
2539 TLan_MiiSync( dev->base_addr );
2540 TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value );
2543 /* Wait for 50 ms and powerup
2544 * This is abitrary. It is intended to make sure the
2545 * transceiver settles.
2547 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP );
2549 } /* TLan_PhyPowerDown */
2554 static void TLan_PhyPowerUp( struct net_device *dev )
2556 TLanPrivateInfo *priv = netdev_priv(dev);
2559 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name );
2560 TLan_MiiSync( dev->base_addr );
2561 value = MII_GC_LOOPBK;
2562 TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
2563 TLan_MiiSync(dev->base_addr);
2564 /* Wait for 500 ms and reset the
2565 * transceiver. The TLAN docs say both 50 ms and
2566 * 500 ms, so do the longer, just in case.
2568 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET );
2570 } /* TLan_PhyPowerUp */
2575 static void TLan_PhyReset( struct net_device *dev )
2577 TLanPrivateInfo *priv = netdev_priv(dev);
2581 phy = priv->phy[priv->phyNum];
2583 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name );
2584 TLan_MiiSync( dev->base_addr );
2585 value = MII_GC_LOOPBK | MII_GC_RESET;
2586 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value );
2587 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
2588 while ( value & MII_GC_RESET ) {
2589 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
2592 /* Wait for 500 ms and initialize.
2593 * I don't remember why I wait this long.
2594 * I've changed this to 50ms, as it seems long enough.
2596 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK );
2598 } /* TLan_PhyReset */
2603 static void TLan_PhyStartLink( struct net_device *dev )
2605 TLanPrivateInfo *priv = netdev_priv(dev);
2613 phy = priv->phy[priv->phyNum];
2614 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name );
2615 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2616 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability );
2618 if ( ( status & MII_GS_AUTONEG ) &&
2620 ability = status >> 11;
2621 if ( priv->speed == TLAN_SPEED_10 &&
2622 priv->duplex == TLAN_DUPLEX_HALF) {
2623 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000);
2624 } else if ( priv->speed == TLAN_SPEED_10 &&
2625 priv->duplex == TLAN_DUPLEX_FULL) {
2626 priv->tlanFullDuplex = TRUE;
2627 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100);
2628 } else if ( priv->speed == TLAN_SPEED_100 &&
2629 priv->duplex == TLAN_DUPLEX_HALF) {
2630 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000);
2631 } else if ( priv->speed == TLAN_SPEED_100 &&
2632 priv->duplex == TLAN_DUPLEX_FULL) {
2633 priv->tlanFullDuplex = TRUE;
2634 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100);
2637 /* Set Auto-Neg advertisement */
2638 TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1);
2639 /* Enablee Auto-Neg */
2640 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 );
2641 /* Restart Auto-Neg */
2642 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 );
2643 /* Wait for 4 sec for autonegotiation
2644 * to complete. The max spec time is less than this
2645 * but the card need additional time to start AN.
2646 * .5 sec should be plenty extra.
2648 printk( "TLAN: %s: Starting autonegotiation.\n", dev->name );
2649 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN );
2655 if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) {
2657 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2658 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
2659 TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN );
2661 } else if ( priv->phyNum == 0 ) {
2663 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl );
2665 tctl |= TLAN_TC_AUISEL;
2667 tctl &= ~TLAN_TC_AUISEL;
2668 if ( priv->duplex == TLAN_DUPLEX_FULL ) {
2669 control |= MII_GC_DUPLEX;
2670 priv->tlanFullDuplex = TRUE;
2672 if ( priv->speed == TLAN_SPEED_100 ) {
2673 control |= MII_GC_SPEEDSEL;
2676 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control );
2677 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl );
2680 /* Wait for 2 sec to give the transceiver time
2681 * to establish link.
2683 TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET );
2685 } /* TLan_PhyStartLink */
2690 static void TLan_PhyFinishAutoNeg( struct net_device *dev )
2692 TLanPrivateInfo *priv = netdev_priv(dev);
2700 phy = priv->phy[priv->phyNum];
2702 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2704 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2706 if ( ! ( status & MII_GS_AUTOCMPLT ) ) {
2707 /* Wait for 8 sec to give the process
2708 * more time. Perhaps we should fail after a while.
2710 if (!priv->neg_be_verbose++) {
2711 printk(KERN_INFO "TLAN: Giving autonegotiation more time.\n");
2712 printk(KERN_INFO "TLAN: Please check that your adapter has\n");
2713 printk(KERN_INFO "TLAN: been properly connected to a HUB or Switch.\n");
2714 printk(KERN_INFO "TLAN: Trying to establish link in the background...\n");
2716 TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN );
2720 printk( "TLAN: %s: Autonegotiation complete.\n", dev->name );
2721 TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv );
2722 TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa );
2723 mode = an_adv & an_lpa & 0x03E0;
2724 if ( mode & 0x0100 ) {
2725 priv->tlanFullDuplex = TRUE;
2726 } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) {
2727 priv->tlanFullDuplex = TRUE;
2730 if ( ( ! ( mode & 0x0180 ) ) && ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && ( priv->phyNum != 0 ) ) {
2732 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2733 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
2734 TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN );
2738 if ( priv->phyNum == 0 ) {
2739 if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || ( an_adv & an_lpa & 0x0040 ) ) {
2740 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB | MII_GC_DUPLEX );
2741 printk( "TLAN: Starting internal PHY with FULL-DUPLEX\n" );
2743 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB );
2744 printk( "TLAN: Starting internal PHY with HALF-DUPLEX\n" );
2748 /* Wait for 100 ms. No reason in partiticular.
2750 TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET );
2752 } /* TLan_PhyFinishAutoNeg */
2756 /*********************************************************************
2764 * dev The device structure of this device.
2767 * This function monitors PHY condition by reading the status
2768 * register via the MII bus. This can be used to give info
2769 * about link changes (up/down), and possible switch to alternate
2772 * ******************************************************************/
2774 void TLan_PhyMonitor( struct net_device *dev )
2776 TLanPrivateInfo *priv = netdev_priv(dev);
2780 phy = priv->phy[priv->phyNum];
2782 /* Get PHY status register */
2783 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status );
2785 /* Check if link has been lost */
2786 if (!(phy_status & MII_GS_LINK)) {
2789 printk(KERN_DEBUG "TLAN: %s has lost link\n", dev->name);
2790 netif_carrier_off(dev);
2791 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
2796 /* Link restablished? */
2797 if ((phy_status & MII_GS_LINK) && !priv->link) {
2799 printk(KERN_DEBUG "TLAN: %s has reestablished link\n", dev->name);
2800 netif_carrier_on(dev);
2803 /* Setup a new monitor */
2804 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
2807 #endif /* MONITOR */
2810 /*****************************************************************************
2811 ******************************************************************************
2813 ThunderLAN Driver MII Routines
2815 These routines are based on the information in Chap. 2 of the
2816 "ThunderLAN Programmer's Guide", pp. 15-24.
2818 ******************************************************************************
2819 *****************************************************************************/
2822 /***************************************************************
2826 * 0 if ack received ok
2830 * dev The device structure containing
2831 * The io address and interrupt count
2833 * phy The address of the PHY to be queried.
2834 * reg The register whose contents are to be
2836 * val A pointer to a variable to store the
2839 * This function uses the TLAN's MII bus to retrieve the contents
2840 * of a given register on a PHY. It sends the appropriate info
2841 * and then reads the 16-bit register value from the MII bus via
2842 * the TLAN SIO register.
2844 **************************************************************/
2846 static int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val )
2853 TLanPrivateInfo *priv = netdev_priv(dev);
2854 unsigned long flags = 0;
2857 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2858 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
2861 spin_lock_irqsave(&priv->lock, flags);
2863 TLan_MiiSync(dev->base_addr);
2865 minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
2867 TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio);
2869 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
2870 TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */
2871 TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
2872 TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
2875 TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */
2877 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */
2878 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2879 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */
2881 nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */
2882 TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */
2883 if (nack) { /* No ACK, so fake it */
2884 for (i = 0; i < 16; i++) {
2885 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
2886 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2890 } else { /* ACK, so read data */
2891 for (tmp = 0, i = 0x8000; i; i >>= 1) {
2892 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
2893 if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio))
2895 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2900 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */
2901 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2904 TLan_SetBit(TLAN_NET_SIO_MINTEN, sio);
2909 spin_unlock_irqrestore(&priv->lock, flags);
2913 } /* TLan_MiiReadReg */
2918 /***************************************************************
2924 * base_port The base IO port of the adapter in
2926 * dev The address of the PHY to be queried.
2927 * data The value to be placed on the MII bus.
2928 * num_bits The number of bits in data that are to
2929 * be placed on the MII bus.
2931 * This function sends on sequence of bits on the MII
2932 * configuration bus.
2934 **************************************************************/
2936 static void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits )
2941 if ( num_bits == 0 )
2944 outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
2945 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2946 TLan_SetBit( TLAN_NET_SIO_MTXEN, sio );
2948 for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) {
2949 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
2950 (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
2952 TLan_SetBit( TLAN_NET_SIO_MDATA, sio );
2954 TLan_ClearBit( TLAN_NET_SIO_MDATA, sio );
2955 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
2956 (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
2959 } /* TLan_MiiSendData */
2964 /***************************************************************
2970 * base_port The base IO port of the adapter in
2973 * This functions syncs all PHYs in terms of the MII configuration
2976 **************************************************************/
2978 static void TLan_MiiSync( u16 base_port )
2983 outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
2984 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2986 TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio );
2987 for ( i = 0; i < 32; i++ ) {
2988 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
2989 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
2992 } /* TLan_MiiSync */
2997 /***************************************************************
3003 * dev The device structure for the device
3005 * phy The address of the PHY to be written to.
3006 * reg The register whose contents are to be
3008 * val The value to be written to the register.
3010 * This function uses the TLAN's MII bus to write the contents of a
3011 * given register on a PHY. It sends the appropriate info and then
3012 * writes the 16-bit register value from the MII configuration bus
3013 * via the TLAN SIO register.
3015 **************************************************************/
3017 static void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val )
3021 unsigned long flags = 0;
3022 TLanPrivateInfo *priv = netdev_priv(dev);
3024 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
3025 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
3028 spin_lock_irqsave(&priv->lock, flags);
3030 TLan_MiiSync( dev->base_addr );
3032 minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
3034 TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio );
3036 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
3037 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */
3038 TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
3039 TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
3041 TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */
3042 TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */
3044 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */
3045 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3048 TLan_SetBit( TLAN_NET_SIO_MINTEN, sio );
3051 spin_unlock_irqrestore(&priv->lock, flags);
3053 } /* TLan_MiiWriteReg */
3058 /*****************************************************************************
3059 ******************************************************************************
3061 ThunderLAN Driver Eeprom routines
3063 The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A
3064 EEPROM. These functions are based on information in Microchip's
3065 data sheet. I don't know how well this functions will work with
3068 ******************************************************************************
3069 *****************************************************************************/
3072 /***************************************************************
3078 * io_base The IO port base address for the
3079 * TLAN device with the EEPROM to
3082 * This function sends a start cycle to an EEPROM attached
3085 **************************************************************/
3087 static void TLan_EeSendStart( u16 io_base )
3091 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3092 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3094 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3095 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3096 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3097 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3098 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3100 } /* TLan_EeSendStart */
3105 /***************************************************************
3109 * If the correct ack was received, 0, otherwise 1
3110 * Parms: io_base The IO port base address for the
3111 * TLAN device with the EEPROM to
3113 * data The 8 bits of information to
3114 * send to the EEPROM.
3115 * stop If TLAN_EEPROM_STOP is passed, a
3116 * stop cycle is sent after the
3117 * byte is sent after the ack is
3120 * This function sends a byte on the serial EEPROM line,
3121 * driving the clock to send each bit. The function then
3122 * reverses transmission direction and reads an acknowledge
3125 **************************************************************/
3127 static int TLan_EeSendByte( u16 io_base, u8 data, int stop )
3133 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3134 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3136 /* Assume clock is low, tx is enabled; */
3137 for ( place = 0x80; place != 0; place >>= 1 ) {
3139 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3141 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3142 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3143 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3145 TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
3146 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3147 err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio );
3148 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3149 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3151 if ( ( ! err ) && stop ) {
3152 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
3153 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3154 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3159 } /* TLan_EeSendByte */
3164 /***************************************************************
3165 * TLan_EeReceiveByte
3170 * io_base The IO port base address for the
3171 * TLAN device with the EEPROM to
3173 * data An address to a char to hold the
3174 * data sent from the EEPROM.
3175 * stop If TLAN_EEPROM_STOP is passed, a
3176 * stop cycle is sent after the
3177 * byte is received, and no ack is
3180 * This function receives 8 bits of data from the EEPROM
3181 * over the serial link. It then sends and ack bit, or no
3182 * ack and a stop bit. This function is used to retrieve
3183 * data after the address of a byte in the EEPROM has been
3186 **************************************************************/
3188 static void TLan_EeReceiveByte( u16 io_base, u8 *data, int stop )
3193 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3194 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3197 /* Assume clock is low, tx is enabled; */
3198 TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
3199 for ( place = 0x80; place; place >>= 1 ) {
3200 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3201 if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) )
3203 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3206 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3208 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */
3209 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3210 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3212 TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */
3213 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3214 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3215 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
3216 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3217 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3220 } /* TLan_EeReceiveByte */
3225 /***************************************************************
3229 * No error = 0, else, the stage at which the error
3232 * io_base The IO port base address for the
3233 * TLAN device with the EEPROM to
3235 * ee_addr The address of the byte in the
3236 * EEPROM whose contents are to be
3238 * data An address to a char to hold the
3239 * data obtained from the EEPROM.
3241 * This function reads a byte of information from an byte
3242 * cell in the EEPROM.
3244 **************************************************************/
3246 static int TLan_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data )
3249 TLanPrivateInfo *priv = netdev_priv(dev);
3250 unsigned long flags = 0;
3253 spin_lock_irqsave(&priv->lock, flags);
3255 TLan_EeSendStart( dev->base_addr );
3256 err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK );
3262 err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK );
3268 TLan_EeSendStart( dev->base_addr );
3269 err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK );
3275 TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP );
3277 spin_unlock_irqrestore(&priv->lock, flags);
3281 } /* TLan_EeReadByte */