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befs: annotate fs32 on tests for superblock endianness
[linux-2.6/mini2440.git] / drivers / net / tlan.c
blobc41d68761364550ebe2d2d8376f2a8c293b5d799
1 /*******************************************************************************
2 *
3 * Linux ThunderLAN Driver
4 *
5 * tlan.c
6 * by James Banks
7 *
8 * (C) 1997-1998 Caldera, Inc.
9 * (C) 1998 James Banks
10 * (C) 1999-2001 Torben Mathiasen
11 * (C) 2002 Samuel Chessman
12 *
13 * This software may be used and distributed according to the terms
14 * of the GNU General Public License, incorporated herein by reference.
15 *
16 ** Useful (if not required) reading:
17 *
18 * Texas Instruments, ThunderLAN Programmer's Guide,
19 * TI Literature Number SPWU013A
20 * available in PDF format from www.ti.com
21 * Level One, LXT901 and LXT970 Data Sheets
22 * available in PDF format from www.level1.com
23 * National Semiconductor, DP83840A Data Sheet
24 * available in PDF format from www.national.com
25 * Microchip Technology, 24C01A/02A/04A Data Sheet
26 * available in PDF format from www.microchip.com
27 *
28 * Change History
29 *
30 * Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses
31 * new PCI BIOS interface.
32 * Alan Cox <alan@lxorguk.ukuu.org.uk>:
33 * Fixed the out of memory
34 * handling.
35 *
36 * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer!
37 *
38 * v1.1 Dec 20, 1999 - Removed linux version checking
39 * Patch from Tigran Aivazian.
40 * - v1.1 includes Alan's SMP updates.
41 * - We still have problems on SMP though,
42 * but I'm looking into that.
43 *
44 * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock.
45 * - Removed dependency of HZ being 100.
46 * - We now allow higher priority timers to
47 * overwrite timers like TLAN_TIMER_ACTIVITY
48 * Patch from John Cagle <john.cagle@compaq.com>.
49 * - Fixed a few compiler warnings.
50 *
51 * v1.3 Feb 04, 2000 - Fixed the remaining HZ issues.
52 * - Removed call to pci_present().
53 * - Removed SA_INTERRUPT flag from irq handler.
54 * - Added __init and __initdata to reduce resisdent
55 * code size.
56 * - Driver now uses module_init/module_exit.
57 * - Rewrote init_module and tlan_probe to
58 * share a lot more code. We now use tlan_probe
59 * with builtin and module driver.
60 * - Driver ported to new net API.
61 * - tlan.txt has been reworked to reflect current
62 * driver (almost)
63 * - Other minor stuff
64 *
65 * v1.4 Feb 10, 2000 - Updated with more changes required after Dave's
66 * network cleanup in 2.3.43pre7 (Tigran & myself)
67 * - Minor stuff.
68 *
69 * v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver
70 * if no cable/link were present.
71 * - Cosmetic changes.
72 * - TODO: Port completely to new PCI/DMA API
73 * Auto-Neg fallback.
74 *
75 * v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't
76 * tested it though, as the kernel support is currently
77 * broken (2.3.99p4p3).
78 * - Updated tlan.txt accordingly.
79 * - Adjusted minimum/maximum frame length.
80 * - There is now a TLAN website up at
81 * http://tlan.kernel.dk
82 *
83 * v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now
84 * reports PHY information when used with Donald
85 * Beckers userspace MII diagnostics utility.
86 *
87 * v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings.
88 * - Added link information to Auto-Neg and forced
89 * modes. When NIC operates with auto-neg the driver
90 * will report Link speed & duplex modes as well as
91 * link partner abilities. When forced link is used,
92 * the driver will report status of the established
93 * link.
94 * Please read tlan.txt for additional information.
95 * - Removed call to check_region(), and used
96 * return value of request_region() instead.
97 *
98 * v1.8a May 28, 2000 - Minor updates.
99 *
100 * v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues.
101 * - Updated with timer fixes from Andrew Morton.
102 * - Fixed module race in TLan_Open.
103 * - Added routine to monitor PHY status.
104 * - Added activity led support for Proliant devices.
105 *
106 * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers
107 * like the Compaq NetFlex3/E.
108 * - Rewrote tlan_probe to better handle multiple
109 * bus probes. Probing and device setup is now
110 * done through TLan_Probe and TLan_init_one. Actual
111 * hardware probe is done with kernel API and
112 * TLan_EisaProbe.
113 * - Adjusted debug information for probing.
114 * - Fixed bug that would cause general debug information
115 * to be printed after driver removal.
116 * - Added transmit timeout handling.
117 * - Fixed OOM return values in tlan_probe.
118 * - Fixed possible mem leak in tlan_exit
119 * (now tlan_remove_one).
120 * - Fixed timer bug in TLan_phyMonitor.
121 * - This driver version is alpha quality, please
122 * send me any bug issues you may encounter.
123 *
124 * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was
125 * set for EISA cards.
126 * - Added support for NetFlex3/E with nibble-rate
127 * 10Base-T PHY. This is untestet as I haven't got
128 * one of these cards.
129 * - Fixed timer being added twice.
130 * - Disabled PhyMonitoring by default as this is
131 * work in progress. Define MONITOR to enable it.
132 * - Now we don't display link info with PHYs that
133 * doesn't support it (level1).
134 * - Incresed tx_timeout beacuse of auto-neg.
135 * - Adjusted timers for forced speeds.
136 *
137 * v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.)
138 *
139 * v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues
140 * when link can't be established.
141 * - Added the bbuf option as a kernel parameter.
142 * - Fixed ioaddr probe bug.
143 * - Fixed stupid deadlock with MII interrupts.
144 * - Added support for speed/duplex selection with
145 * multiple nics.
146 * - Added partly fix for TX Channel lockup with
147 * TLAN v1.0 silicon. This needs to be investigated
148 * further.
149 *
150 * v1.14 Dec 16, 2000 - Added support for servicing multiple frames per.
151 * interrupt. Thanks goes to
152 * Adam Keys <adam@ti.com>
153 * Denis Beaudoin <dbeaudoin@ti.com>
154 * for providing the patch.
155 * - Fixed auto-neg output when using multiple
156 * adapters.
157 * - Converted to use new taskq interface.
158 *
159 * v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.)
160 *
161 * Samuel Chessman <chessman@tux.org> New Maintainer!
162 *
163 * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be
164 * 10T half duplex no loopback
165 * Thanks to Gunnar Eikman
166 *******************************************************************************/
167
168 #include <linux/module.h>
169 #include <linux/init.h>
170 #include <linux/ioport.h>
171 #include <linux/eisa.h>
172 #include <linux/pci.h>
173 #include <linux/dma-mapping.h>
174 #include <linux/netdevice.h>
175 #include <linux/etherdevice.h>
176 #include <linux/delay.h>
177 #include <linux/spinlock.h>
178 #include <linux/workqueue.h>
179 #include <linux/mii.h>
180
181 #include "tlan.h"
182
183 typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 );
184
185
186 /* For removing EISA devices */
187 static struct net_device *TLan_Eisa_Devices;
188
189 static int TLanDevicesInstalled;
190
191 /* Set speed, duplex and aui settings */
192 static int aui[MAX_TLAN_BOARDS];
193 static int duplex[MAX_TLAN_BOARDS];
194 static int speed[MAX_TLAN_BOARDS];
195 static int boards_found;
196 module_param_array(aui, int, NULL, 0);
197 module_param_array(duplex, int, NULL, 0);
198 module_param_array(speed, int, NULL, 0);
199 MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
200 MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
201 MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)");
202
203 MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
204 MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
205 MODULE_LICENSE("GPL");
206
207
208 /* Define this to enable Link beat monitoring */
209 #undef MONITOR
210
211 /* Turn on debugging. See Documentation/networking/tlan.txt for details */
212 static int debug;
213 module_param(debug, int, 0);
214 MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
215
216 static int bbuf;
217 module_param(bbuf, int, 0);
218 MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)");
219
220 static const char TLanSignature[] = "TLAN";
221 static const char tlan_banner[] = "ThunderLAN driver v1.15\n";
222 static int tlan_have_pci;
223 static int tlan_have_eisa;
224
225 static const char *media[] = {
226 "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ",
227 "100baseTx-FD", "100baseT4", NULL
228 };
229
230 static struct board {
231 const char *deviceLabel;
232 u32 flags;
233 u16 addrOfs;
234 } board_info[] = {
235 { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
236 { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
237 { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
238 { "Compaq NetFlex-3/P",
239 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",
242 TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
243 { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 },
244 { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 },
245 { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
246 { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 },
247 { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 },
248 { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
249 { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 },
250 { "Compaq NetFlex-3/E",
251 TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
252 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
253 { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
254 };
255
256 static struct pci_device_id tlan_pci_tbl[] = {
257 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
258 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
259 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
260 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
261 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
262 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
263 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
264 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
265 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
266 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
267 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
268 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
269 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
270 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
271 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
272 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
273 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
274 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
275 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
276 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
277 { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
278 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
279 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
280 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
281 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
282 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
283 { 0,}
284 };
285 MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
286
287 static void TLan_EisaProbe( void );
288 static void TLan_Eisa_Cleanup( void );
289 static int TLan_Init( struct net_device * );
290 static int TLan_Open( struct net_device *dev );
291 static int TLan_StartTx( struct sk_buff *, struct net_device *);
292 static irqreturn_t TLan_HandleInterrupt( int, void *);
293 static int TLan_Close( struct net_device *);
294 static struct net_device_stats *TLan_GetStats( struct net_device *);
295 static void TLan_SetMulticastList( struct net_device *);
296 static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd);
297 static int TLan_probe1( struct pci_dev *pdev, long ioaddr,
298 int irq, int rev, const struct pci_device_id *ent);
299 static void TLan_tx_timeout( struct net_device *dev);
300 static void TLan_tx_timeout_work(struct work_struct *work);
301 static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent);
302
303 static u32 TLan_HandleTxEOF( struct net_device *, u16 );
304 static u32 TLan_HandleStatOverflow( struct net_device *, u16 );
305 static u32 TLan_HandleRxEOF( struct net_device *, u16 );
306 static u32 TLan_HandleDummy( struct net_device *, u16 );
307 static u32 TLan_HandleTxEOC( struct net_device *, u16 );
308 static u32 TLan_HandleStatusCheck( struct net_device *, u16 );
309 static u32 TLan_HandleRxEOC( struct net_device *, u16 );
310
311 static void TLan_Timer( unsigned long );
312
313 static void TLan_ResetLists( struct net_device * );
314 static void TLan_FreeLists( struct net_device * );
315 static void TLan_PrintDio( u16 );
316 static void TLan_PrintList( TLanList *, char *, int );
317 static void TLan_ReadAndClearStats( struct net_device *, int );
318 static void TLan_ResetAdapter( struct net_device * );
319 static void TLan_FinishReset( struct net_device * );
320 static void TLan_SetMac( struct net_device *, int areg, char *mac );
321
322 static void TLan_PhyPrint( struct net_device * );
323 static void TLan_PhyDetect( struct net_device * );
324 static void TLan_PhyPowerDown( struct net_device * );
325 static void TLan_PhyPowerUp( struct net_device * );
326 static void TLan_PhyReset( struct net_device * );
327 static void TLan_PhyStartLink( struct net_device * );
328 static void TLan_PhyFinishAutoNeg( struct net_device * );
329 #ifdef MONITOR
330 static void TLan_PhyMonitor( struct net_device * );
331 #endif
332
333 /*
334 static int TLan_PhyNop( struct net_device * );
335 static int TLan_PhyInternalCheck( struct net_device * );
336 static int TLan_PhyInternalService( struct net_device * );
337 static int TLan_PhyDp83840aCheck( struct net_device * );
338 */
339
340 static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * );
341 static void TLan_MiiSendData( u16, u32, unsigned );
342 static void TLan_MiiSync( u16 );
343 static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 );
344
345 static void TLan_EeSendStart( u16 );
346 static int TLan_EeSendByte( u16, u8, int );
347 static void TLan_EeReceiveByte( u16, u8 *, int );
348 static int TLan_EeReadByte( struct net_device *, u8, u8 * );
349
350
351 static inline void
352 TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb)
353 {
354 unsigned long addr = (unsigned long)skb;
355 tag->buffer[9].address = addr;
356 tag->buffer[8].address = upper_32_bits(addr);
357 }
358
359 static inline struct sk_buff *
360 TLan_GetSKB( const struct tlan_list_tag *tag)
361 {
362 unsigned long addr;
363
364 addr = tag->buffer[9].address;
365 addr |= (tag->buffer[8].address << 16) << 16;
366 return (struct sk_buff *) addr;
367 }
368
369
370 static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = {
371 NULL,
372 TLan_HandleTxEOF,
373 TLan_HandleStatOverflow,
374 TLan_HandleRxEOF,
375 TLan_HandleDummy,
376 TLan_HandleTxEOC,
377 TLan_HandleStatusCheck,
378 TLan_HandleRxEOC
379 };
380
381 static inline void
382 TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type )
383 {
384 TLanPrivateInfo *priv = netdev_priv(dev);
385 unsigned long flags = 0;
386
387 if (!in_irq())
388 spin_lock_irqsave(&priv->lock, flags);
389 if ( priv->timer.function != NULL &&
390 priv->timerType != TLAN_TIMER_ACTIVITY ) {
391 if (!in_irq())
392 spin_unlock_irqrestore(&priv->lock, flags);
393 return;
394 }
395 priv->timer.function = &TLan_Timer;
396 if (!in_irq())
397 spin_unlock_irqrestore(&priv->lock, flags);
398
399 priv->timer.data = (unsigned long) dev;
400 priv->timerSetAt = jiffies;
401 priv->timerType = type;
402 mod_timer(&priv->timer, jiffies + ticks);
403
404 } /* TLan_SetTimer */
405
406
407 /*****************************************************************************
408 ******************************************************************************
409
410 ThunderLAN Driver Primary Functions
411
412 These functions are more or less common to all Linux network drivers.
413
414 ******************************************************************************
415 *****************************************************************************/
416
417
418
419
420
421 /***************************************************************
422 * tlan_remove_one
423 *
424 * Returns:
425 * Nothing
426 * Parms:
427 * None
428 *
429 * Goes through the TLanDevices list and frees the device
430 * structs and memory associated with each device (lists
431 * and buffers). It also ureserves the IO port regions
432 * associated with this device.
433 *
434 **************************************************************/
435
436
437 static void __devexit tlan_remove_one( struct pci_dev *pdev)
438 {
439 struct net_device *dev = pci_get_drvdata( pdev );
440 TLanPrivateInfo *priv = netdev_priv(dev);
441
442 unregister_netdev( dev );
443
444 if ( priv->dmaStorage ) {
445 pci_free_consistent(priv->pciDev,
446 priv->dmaSize, priv->dmaStorage,
447 priv->dmaStorageDMA );
448 }
449
450 #ifdef CONFIG_PCI
451 pci_release_regions(pdev);
452 #endif
453
454 free_netdev( dev );
455
456 pci_set_drvdata( pdev, NULL );
457 }
458
459 static struct pci_driver tlan_driver = {
460 .name = "tlan",
461 .id_table = tlan_pci_tbl,
462 .probe = tlan_init_one,
463 .remove = __devexit_p(tlan_remove_one),
464 };
465
466 static int __init tlan_probe(void)
467 {
468 int rc = -ENODEV;
469
470 printk(KERN_INFO "%s", tlan_banner);
471
472 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
473
474 /* Use new style PCI probing. Now the kernel will
475 do most of this for us */
476 rc = pci_register_driver(&tlan_driver);
477
478 if (rc != 0) {
479 printk(KERN_ERR "TLAN: Could not register pci driver.\n");
480 goto err_out_pci_free;
481 }
482
483 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
484 TLan_EisaProbe();
485
486 printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n",
487 TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s",
488 tlan_have_pci, tlan_have_eisa);
489
490 if (TLanDevicesInstalled == 0) {
491 rc = -ENODEV;
492 goto err_out_pci_unreg;
493 }
494 return 0;
495
496 err_out_pci_unreg:
497 pci_unregister_driver(&tlan_driver);
498 err_out_pci_free:
499 return rc;
500 }
501
502
503 static int __devinit tlan_init_one( struct pci_dev *pdev,
504 const struct pci_device_id *ent)
505 {
506 return TLan_probe1( pdev, -1, -1, 0, ent);
507 }
508
509
510 /*
511 ***************************************************************
512 * tlan_probe1
513 *
514 * Returns:
515 * 0 on success, error code on error
516 * Parms:
517 * none
518 *
519 * The name is lower case to fit in with all the rest of
520 * the netcard_probe names. This function looks for
521 * another TLan based adapter, setting it up with the
522 * allocated device struct if one is found.
523 * tlan_probe has been ported to the new net API and
524 * now allocates its own device structure. This function
525 * is also used by modules.
526 *
527 **************************************************************/
528
529 static int __devinit TLan_probe1(struct pci_dev *pdev,
530 long ioaddr, int irq, int rev,
531 const struct pci_device_id *ent )
532 {
533
534 struct net_device *dev;
535 TLanPrivateInfo *priv;
536 u16 device_id;
537 int reg, rc = -ENODEV;
538
539 #ifdef CONFIG_PCI
540 if (pdev) {
541 rc = pci_enable_device(pdev);
542 if (rc)
543 return rc;
544
545 rc = pci_request_regions(pdev, TLanSignature);
546 if (rc) {
547 printk(KERN_ERR "TLAN: Could not reserve IO regions\n");
548 goto err_out;
549 }
550 }
551 #endif /* CONFIG_PCI */
552
553 dev = alloc_etherdev(sizeof(TLanPrivateInfo));
554 if (dev == NULL) {
555 printk(KERN_ERR "TLAN: Could not allocate memory for device.\n");
556 rc = -ENOMEM;
557 goto err_out_regions;
558 }
559 SET_NETDEV_DEV(dev, &pdev->dev);
560
561 priv = netdev_priv(dev);
562
563 priv->pciDev = pdev;
564 priv->dev = dev;
565
566 /* Is this a PCI device? */
567 if (pdev) {
568 u32 pci_io_base = 0;
569
570 priv->adapter = &board_info[ent->driver_data];
571
572 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
573 if (rc) {
574 printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n");
575 goto err_out_free_dev;
576 }
577
578 for ( reg= 0; reg <= 5; reg ++ ) {
579 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
580 pci_io_base = pci_resource_start(pdev, reg);
581 TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n",
582 pci_io_base);
583 break;
584 }
585 }
586 if (!pci_io_base) {
587 printk(KERN_ERR "TLAN: No IO mappings available\n");
588 rc = -EIO;
589 goto err_out_free_dev;
590 }
591
592 dev->base_addr = pci_io_base;
593 dev->irq = pdev->irq;
594 priv->adapterRev = pdev->revision;
595 pci_set_master(pdev);
596 pci_set_drvdata(pdev, dev);
597
598 } else { /* EISA card */
599 /* This is a hack. We need to know which board structure
600 * is suited for this adapter */
601 device_id = inw(ioaddr + EISA_ID2);
602 priv->is_eisa = 1;
603 if (device_id == 0x20F1) {
604 priv->adapter = &board_info[13]; /* NetFlex-3/E */
605 priv->adapterRev = 23; /* TLAN 2.3 */
606 } else {
607 priv->adapter = &board_info[14];
608 priv->adapterRev = 10; /* TLAN 1.0 */
609 }
610 dev->base_addr = ioaddr;
611 dev->irq = irq;
612 }
613
614 /* Kernel parameters */
615 if (dev->mem_start) {
616 priv->aui = dev->mem_start & 0x01;
617 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
618 : (dev->mem_start & 0x06) >> 1;
619 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
620 : (dev->mem_start & 0x18) >> 3;
621
622 if (priv->speed == 0x1) {
623 priv->speed = TLAN_SPEED_10;
624 } else if (priv->speed == 0x2) {
625 priv->speed = TLAN_SPEED_100;
626 }
627 debug = priv->debug = dev->mem_end;
628 } else {
629 priv->aui = aui[boards_found];
630 priv->speed = speed[boards_found];
631 priv->duplex = duplex[boards_found];
632 priv->debug = debug;
633 }
634
635 /* This will be used when we get an adapter error from
636 * within our irq handler */
637 INIT_WORK(&priv->tlan_tqueue, TLan_tx_timeout_work);
638
639 spin_lock_init(&priv->lock);
640
641 rc = TLan_Init(dev);
642 if (rc) {
643 printk(KERN_ERR "TLAN: Could not set up device.\n");
644 goto err_out_free_dev;
645 }
646
647 rc = register_netdev(dev);
648 if (rc) {
649 printk(KERN_ERR "TLAN: Could not register device.\n");
650 goto err_out_uninit;
651 }
652
653
654 TLanDevicesInstalled++;
655 boards_found++;
656
657 /* pdev is NULL if this is an EISA device */
658 if (pdev)
659 tlan_have_pci++;
660 else {
661 priv->nextDevice = TLan_Eisa_Devices;
662 TLan_Eisa_Devices = dev;
663 tlan_have_eisa++;
664 }
665
666 printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n",
667 dev->name,
668 (int) dev->irq,
669 (int) dev->base_addr,
670 priv->adapter->deviceLabel,
671 priv->adapterRev);
672 return 0;
673
674 err_out_uninit:
675 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage,
676 priv->dmaStorageDMA );
677 err_out_free_dev:
678 free_netdev(dev);
679 err_out_regions:
680 #ifdef CONFIG_PCI
681 if (pdev)
682 pci_release_regions(pdev);
683 #endif
684 err_out:
685 if (pdev)
686 pci_disable_device(pdev);
687 return rc;
688 }
689
690
691 static void TLan_Eisa_Cleanup(void)
692 {
693 struct net_device *dev;
694 TLanPrivateInfo *priv;
695
696 while( tlan_have_eisa ) {
697 dev = TLan_Eisa_Devices;
698 priv = netdev_priv(dev);
699 if (priv->dmaStorage) {
700 pci_free_consistent(priv->pciDev, priv->dmaSize,
701 priv->dmaStorage, priv->dmaStorageDMA );
702 }
703 release_region( dev->base_addr, 0x10);
704 unregister_netdev( dev );
705 TLan_Eisa_Devices = priv->nextDevice;
706 free_netdev( dev );
707 tlan_have_eisa--;
708 }
709 }
710
711
712 static void __exit tlan_exit(void)
713 {
714 pci_unregister_driver(&tlan_driver);
715
716 if (tlan_have_eisa)
717 TLan_Eisa_Cleanup();
718
719 }
720
721
722 /* Module loading/unloading */
723 module_init(tlan_probe);
724 module_exit(tlan_exit);
725
726
727
728 /**************************************************************
729 * TLan_EisaProbe
730 *
731 * Returns: 0 on success, 1 otherwise
732 *
733 * Parms: None
734 *
735 *
736 * This functions probes for EISA devices and calls
737 * TLan_probe1 when one is found.
738 *
739 *************************************************************/
740
741 static void __init TLan_EisaProbe (void)
742 {
743 long ioaddr;
744 int rc = -ENODEV;
745 int irq;
746 u16 device_id;
747
748 if (!EISA_bus) {
749 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
750 return;
751 }
752
753 /* Loop through all slots of the EISA bus */
754 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
755
756 TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n",
757 (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID));
758 TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n",
759 (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2));
760
761
762 TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ",
763 (int) ioaddr);
764 if (request_region(ioaddr, 0x10, TLanSignature) == NULL)
765 goto out;
766
767 if (inw(ioaddr + EISA_ID) != 0x110E) {
768 release_region(ioaddr, 0x10);
769 goto out;
770 }
771
772 device_id = inw(ioaddr + EISA_ID2);
773 if (device_id != 0x20F1 && device_id != 0x40F1) {
774 release_region (ioaddr, 0x10);
775 goto out;
776 }
777
778 if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */
779 release_region (ioaddr, 0x10);
780 goto out2;
781 }
782
783 if (debug == 0x10)
784 printk("Found one\n");
785
786
787 /* Get irq from board */
788 switch (inb(ioaddr + 0xCC0)) {
789 case(0x10):
790 irq=5;
791 break;
792 case(0x20):
793 irq=9;
794 break;
795 case(0x40):
796 irq=10;
797 break;
798 case(0x80):
799 irq=11;
800 break;
801 default:
802 goto out;
803 }
804
805
806 /* Setup the newly found eisa adapter */
807 rc = TLan_probe1( NULL, ioaddr, irq,
808 12, NULL);
809 continue;
810
811 out:
812 if (debug == 0x10)
813 printk("None found\n");
814 continue;
815
816 out2: if (debug == 0x10)
817 printk("Card found but it is not enabled, skipping\n");
818 continue;
819
820 }
821
822 } /* TLan_EisaProbe */
823
824 #ifdef CONFIG_NET_POLL_CONTROLLER
825 static void TLan_Poll(struct net_device *dev)
826 {
827 disable_irq(dev->irq);
828 TLan_HandleInterrupt(dev->irq, dev);
829 enable_irq(dev->irq);
830 }
831 #endif
832
833
834
835
836 /***************************************************************
837 * TLan_Init
838 *
839 * Returns:
840 * 0 on success, error code otherwise.
841 * Parms:
842 * dev The structure of the device to be
843 * init'ed.
844 *
845 * This function completes the initialization of the
846 * device structure and driver. It reserves the IO
847 * addresses, allocates memory for the lists and bounce
848 * buffers, retrieves the MAC address from the eeprom
849 * and assignes the device's methods.
850 *
851 **************************************************************/
852
853 static int TLan_Init( struct net_device *dev )
854 {
855 int dma_size;
856 int err;
857 int i;
858 TLanPrivateInfo *priv;
859
860 priv = netdev_priv(dev);
861
862 if ( bbuf ) {
863 dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
864 * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE );
865 } else {
866 dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
867 * ( sizeof(TLanList) );
868 }
869 priv->dmaStorage = pci_alloc_consistent(priv->pciDev,
870 dma_size, &priv->dmaStorageDMA);
871 priv->dmaSize = dma_size;
872
873 if ( priv->dmaStorage == NULL ) {
874 printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n",
875 dev->name );
876 return -ENOMEM;
877 }
878 memset( priv->dmaStorage, 0, dma_size );
879 priv->rxList = (TLanList *) ALIGN((unsigned long)priv->dmaStorage, 8);
880 priv->rxListDMA = ALIGN(priv->dmaStorageDMA, 8);
881 priv->txList = priv->rxList + TLAN_NUM_RX_LISTS;
882 priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS;
883
884 if ( bbuf ) {
885 priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS );
886 priv->rxBufferDMA =priv->txListDMA
887 + sizeof(TLanList) * TLAN_NUM_TX_LISTS;
888 priv->txBuffer = priv->rxBuffer
889 + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
890 priv->txBufferDMA = priv->rxBufferDMA
891 + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
892 }
893
894 err = 0;
895 for ( i = 0; i < 6 ; i++ )
896 err |= TLan_EeReadByte( dev,
897 (u8) priv->adapter->addrOfs + i,
898 (u8 *) &dev->dev_addr[i] );
899 if ( err ) {
900 printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n",
901 dev->name,
902 err );
903 }
904 dev->addr_len = 6;
905
906 netif_carrier_off(dev);
907
908 /* Device methods */
909 dev->open = &TLan_Open;
910 dev->hard_start_xmit = &TLan_StartTx;
911 dev->stop = &TLan_Close;
912 dev->get_stats = &TLan_GetStats;
913 dev->set_multicast_list = &TLan_SetMulticastList;
914 dev->do_ioctl = &TLan_ioctl;
915 #ifdef CONFIG_NET_POLL_CONTROLLER
916 dev->poll_controller = &TLan_Poll;
917 #endif
918 dev->tx_timeout = &TLan_tx_timeout;
919 dev->watchdog_timeo = TX_TIMEOUT;
920
921 return 0;
922
923 } /* TLan_Init */
924
925
926
927
928 /***************************************************************
929 * TLan_Open
930 *
931 * Returns:
932 * 0 on success, error code otherwise.
933 * Parms:
934 * dev Structure of device to be opened.
935 *
936 * This routine puts the driver and TLAN adapter in a
937 * state where it is ready to send and receive packets.
938 * It allocates the IRQ, resets and brings the adapter
939 * out of reset, and allows interrupts. It also delays
940 * the startup for autonegotiation or sends a Rx GO
941 * command to the adapter, as appropriate.
942 *
943 **************************************************************/
944
945 static int TLan_Open( struct net_device *dev )
946 {
947 TLanPrivateInfo *priv = netdev_priv(dev);
948 int err;
949
950 priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION );
951 err = request_irq( dev->irq, TLan_HandleInterrupt, IRQF_SHARED,
952 dev->name, dev );
953
954 if ( err ) {
955 pr_err("TLAN: Cannot open %s because IRQ %d is already in use.\n",
956 dev->name, dev->irq );
957 return err;
958 }
959
960 init_timer(&priv->timer);
961 netif_start_queue(dev);
962
963 /* NOTE: It might not be necessary to read the stats before a
964 reset if you don't care what the values are.
965 */
966 TLan_ResetLists( dev );
967 TLan_ReadAndClearStats( dev, TLAN_IGNORE );
968 TLan_ResetAdapter( dev );
969
970 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
971 dev->name, priv->tlanRev );
972
973 return 0;
974
975 } /* TLan_Open */
976
977
978
979 /**************************************************************
980 * TLan_ioctl
981 *
982 * Returns:
983 * 0 on success, error code otherwise
984 * Params:
985 * dev structure of device to receive ioctl.
986 *
987 * rq ifreq structure to hold userspace data.
988 *
989 * cmd ioctl command.
990 *
991 *
992 *************************************************************/
993
994 static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
995 {
996 TLanPrivateInfo *priv = netdev_priv(dev);
997 struct mii_ioctl_data *data = if_mii(rq);
998 u32 phy = priv->phy[priv->phyNum];
999
1000 if (!priv->phyOnline)
1001 return -EAGAIN;
1002
1003 switch(cmd) {
1004 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
1005 data->phy_id = phy;
1006
1007
1008 case SIOCGMIIREG: /* Read MII PHY register. */
1009 TLan_MiiReadReg(dev, data->phy_id & 0x1f,
1010 data->reg_num & 0x1f, &data->val_out);
1011 return 0;
1012
1013
1014 case SIOCSMIIREG: /* Write MII PHY register. */
1015 if (!capable(CAP_NET_ADMIN))
1016 return -EPERM;
1017 TLan_MiiWriteReg(dev, data->phy_id & 0x1f,
1018 data->reg_num & 0x1f, data->val_in);
1019 return 0;
1020 default:
1021 return -EOPNOTSUPP;
1022 }
1023 } /* tlan_ioctl */
1024
1025
1026 /***************************************************************
1027 * TLan_tx_timeout
1028 *
1029 * Returns: nothing
1030 *
1031 * Params:
1032 * dev structure of device which timed out
1033 * during transmit.
1034 *
1035 **************************************************************/
1036
1037 static void TLan_tx_timeout(struct net_device *dev)
1038 {
1039
1040 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
1041
1042 /* Ok so we timed out, lets see what we can do about it...*/
1043 TLan_FreeLists( dev );
1044 TLan_ResetLists( dev );
1045 TLan_ReadAndClearStats( dev, TLAN_IGNORE );
1046 TLan_ResetAdapter( dev );
1047 dev->trans_start = jiffies;
1048 netif_wake_queue( dev );
1049
1050 }
1051
1052
1053 /***************************************************************
1054 * TLan_tx_timeout_work
1055 *
1056 * Returns: nothing
1057 *
1058 * Params:
1059 * work work item of device which timed out
1060 *
1061 **************************************************************/
1062
1063 static void TLan_tx_timeout_work(struct work_struct *work)
1064 {
1065 TLanPrivateInfo *priv =
1066 container_of(work, TLanPrivateInfo, tlan_tqueue);
1067
1068 TLan_tx_timeout(priv->dev);
1069 }
1070
1071
1072
1073 /***************************************************************
1074 * TLan_StartTx
1075 *
1076 * Returns:
1077 * 0 on success, non-zero on failure.
1078 * Parms:
1079 * skb A pointer to the sk_buff containing the
1080 * frame to be sent.
1081 * dev The device to send the data on.
1082 *
1083 * This function adds a frame to the Tx list to be sent
1084 * ASAP. First it verifies that the adapter is ready and
1085 * there is room in the queue. Then it sets up the next
1086 * available list, copies the frame to the corresponding
1087 * buffer. If the adapter Tx channel is idle, it gives
1088 * the adapter a Tx Go command on the list, otherwise it
1089 * sets the forward address of the previous list to point
1090 * to this one. Then it frees the sk_buff.
1091 *
1092 **************************************************************/
1093
1094 static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev )
1095 {
1096 TLanPrivateInfo *priv = netdev_priv(dev);
1097 TLanList *tail_list;
1098 dma_addr_t tail_list_phys;
1099 u8 *tail_buffer;
1100 unsigned long flags;
1101
1102 if ( ! priv->phyOnline ) {
1103 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n",
1104 dev->name );
1105 dev_kfree_skb_any(skb);
1106 return 0;
1107 }
1108
1109 if (skb_padto(skb, TLAN_MIN_FRAME_SIZE))
1110 return 0;
1111
1112 tail_list = priv->txList + priv->txTail;
1113 tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail;
1114
1115 if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) {
1116 TLAN_DBG( TLAN_DEBUG_TX,
1117 "TRANSMIT: %s is busy (Head=%d Tail=%d)\n",
1118 dev->name, priv->txHead, priv->txTail );
1119 netif_stop_queue(dev);
1120 priv->txBusyCount++;
1121 return 1;
1122 }
1123
1124 tail_list->forward = 0;
1125
1126 if ( bbuf ) {
1127 tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE );
1128 skb_copy_from_linear_data(skb, tail_buffer, skb->len);
1129 } else {
1130 tail_list->buffer[0].address = pci_map_single(priv->pciDev,
1131 skb->data, skb->len,
1132 PCI_DMA_TODEVICE);
1133 TLan_StoreSKB(tail_list, skb);
1134 }
1135
1136 tail_list->frameSize = (u16) skb->len;
1137 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len;
1138 tail_list->buffer[1].count = 0;
1139 tail_list->buffer[1].address = 0;
1140
1141 spin_lock_irqsave(&priv->lock, flags);
1142 tail_list->cStat = TLAN_CSTAT_READY;
1143 if ( ! priv->txInProgress ) {
1144 priv->txInProgress = 1;
1145 TLAN_DBG( TLAN_DEBUG_TX,
1146 "TRANSMIT: Starting TX on buffer %d\n", priv->txTail );
1147 outl( tail_list_phys, dev->base_addr + TLAN_CH_PARM );
1148 outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD );
1149 } else {
1150 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channel\n",
1151 priv->txTail );
1152 if ( priv->txTail == 0 ) {
1153 ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward
1154 = tail_list_phys;
1155 } else {
1156 ( priv->txList + ( priv->txTail - 1 ) )->forward
1157 = tail_list_phys;
1158 }
1159 }
1160 spin_unlock_irqrestore(&priv->lock, flags);
1161
1162 CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS );
1163
1164 if ( bbuf )
1165 dev_kfree_skb_any(skb);
1166
1167 dev->trans_start = jiffies;
1168 return 0;
1169
1170 } /* TLan_StartTx */
1171
1172
1173
1174
1175 /***************************************************************
1176 * TLan_HandleInterrupt
1177 *
1178 * Returns:
1179 * Nothing
1180 * Parms:
1181 * irq The line on which the interrupt
1182 * occurred.
1183 * dev_id A pointer to the device assigned to
1184 * this irq line.
1185 *
1186 * This function handles an interrupt generated by its
1187 * assigned TLAN adapter. The function deactivates
1188 * interrupts on its adapter, records the type of
1189 * interrupt, executes the appropriate subhandler, and
1190 * acknowdges the interrupt to the adapter (thus
1191 * re-enabling adapter interrupts.
1192 *
1193 **************************************************************/
1194
1195 static irqreturn_t TLan_HandleInterrupt(int irq, void *dev_id)
1196 {
1197 struct net_device *dev = dev_id;
1198 TLanPrivateInfo *priv = netdev_priv(dev);
1199 u16 host_int;
1200 u16 type;
1201
1202 spin_lock(&priv->lock);
1203
1204 host_int = inw( dev->base_addr + TLAN_HOST_INT );
1205 type = ( host_int & TLAN_HI_IT_MASK ) >> 2;
1206 if ( type ) {
1207 u32 ack;
1208 u32 host_cmd;
1209
1210 outw( host_int, dev->base_addr + TLAN_HOST_INT );
1211 ack = TLanIntVector[type]( dev, host_int );
1212
1213 if ( ack ) {
1214 host_cmd = TLAN_HC_ACK | ack | ( type << 18 );
1215 outl( host_cmd, dev->base_addr + TLAN_HOST_CMD );
1216 }
1217 }
1218
1219 spin_unlock(&priv->lock);
1220
1221 return IRQ_RETVAL(type);
1222 } /* TLan_HandleInterrupts */
1223
1224
1225
1226
1227 /***************************************************************
1228 * TLan_Close
1229 *
1230 * Returns:
1231 * An error code.
1232 * Parms:
1233 * dev The device structure of the device to
1234 * close.
1235 *
1236 * This function shuts down the adapter. It records any
1237 * stats, puts the adapter into reset state, deactivates
1238 * its time as needed, and frees the irq it is using.
1239 *
1240 **************************************************************/
1241
1242 static int TLan_Close(struct net_device *dev)
1243 {
1244 TLanPrivateInfo *priv = netdev_priv(dev);
1245
1246 netif_stop_queue(dev);
1247 priv->neg_be_verbose = 0;
1248
1249 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1250 outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
1251 if ( priv->timer.function != NULL ) {
1252 del_timer_sync( &priv->timer );
1253 priv->timer.function = NULL;
1254 }
1255
1256 free_irq( dev->irq, dev );
1257 TLan_FreeLists( dev );
1258 TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name );
1259
1260 return 0;
1261
1262 } /* TLan_Close */
1263
1264
1265
1266
1267 /***************************************************************
1268 * TLan_GetStats
1269 *
1270 * Returns:
1271 * A pointer to the device's statistics structure.
1272 * Parms:
1273 * dev The device structure to return the
1274 * stats for.
1275 *
1276 * This function updates the devices statistics by reading
1277 * the TLAN chip's onboard registers. Then it returns the
1278 * address of the statistics structure.
1279 *
1280 **************************************************************/
1281
1282 static struct net_device_stats *TLan_GetStats( struct net_device *dev )
1283 {
1284 TLanPrivateInfo *priv = netdev_priv(dev);
1285 int i;
1286
1287 /* Should only read stats if open ? */
1288 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1289
1290 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name,
1291 priv->rxEocCount );
1292 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name,
1293 priv->txBusyCount );
1294 if ( debug & TLAN_DEBUG_GNRL ) {
1295 TLan_PrintDio( dev->base_addr );
1296 TLan_PhyPrint( dev );
1297 }
1298 if ( debug & TLAN_DEBUG_LIST ) {
1299 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ )
1300 TLan_PrintList( priv->rxList + i, "RX", i );
1301 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ )
1302 TLan_PrintList( priv->txList + i, "TX", i );
1303 }
1304
1305 return &dev->stats;
1306
1307 } /* TLan_GetStats */
1308
1309
1310
1311
1312 /***************************************************************
1313 * TLan_SetMulticastList
1314 *
1315 * Returns:
1316 * Nothing
1317 * Parms:
1318 * dev The device structure to set the
1319 * multicast list for.
1320 *
1321 * This function sets the TLAN adaptor to various receive
1322 * modes. If the IFF_PROMISC flag is set, promiscuous
1323 * mode is acitviated. Otherwise, promiscuous mode is
1324 * turned off. If the IFF_ALLMULTI flag is set, then
1325 * the hash table is set to receive all group addresses.
1326 * Otherwise, the first three multicast addresses are
1327 * stored in AREG_1-3, and the rest are selected via the
1328 * hash table, as necessary.
1329 *
1330 **************************************************************/
1331
1332 static void TLan_SetMulticastList( struct net_device *dev )
1333 {
1334 struct dev_mc_list *dmi = dev->mc_list;
1335 u32 hash1 = 0;
1336 u32 hash2 = 0;
1337 int i;
1338 u32 offset;
1339 u8 tmp;
1340
1341 if ( dev->flags & IFF_PROMISC ) {
1342 tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
1343 TLan_DioWrite8( dev->base_addr,
1344 TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF );
1345 } else {
1346 tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
1347 TLan_DioWrite8( dev->base_addr,
1348 TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF );
1349 if ( dev->flags & IFF_ALLMULTI ) {
1350 for ( i = 0; i < 3; i++ )
1351 TLan_SetMac( dev, i + 1, NULL );
1352 TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF );
1353 TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF );
1354 } else {
1355 for ( i = 0; i < dev->mc_count; i++ ) {
1356 if ( i < 3 ) {
1357 TLan_SetMac( dev, i + 1,
1358 (char *) &dmi->dmi_addr );
1359 } else {
1360 offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr );
1361 if ( offset < 32 )
1362 hash1 |= ( 1 << offset );
1363 else
1364 hash2 |= ( 1 << ( offset - 32 ) );
1365 }
1366 dmi = dmi->next;
1367 }
1368 for ( ; i < 3; i++ )
1369 TLan_SetMac( dev, i + 1, NULL );
1370 TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 );
1371 TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 );
1372 }
1373 }
1374
1375 } /* TLan_SetMulticastList */
1376
1377
1378
1379 /*****************************************************************************
1380 ******************************************************************************
1381
1382 ThunderLAN Driver Interrupt Vectors and Table
1383
1384 Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN
1385 Programmer's Guide" for more informations on handling interrupts
1386 generated by TLAN based adapters.
1387
1388 ******************************************************************************
1389 *****************************************************************************/
1390
1391
1392
1393
1394 /***************************************************************
1395 * TLan_HandleTxEOF
1396 *
1397 * Returns:
1398 * 1
1399 * Parms:
1400 * dev Device assigned the IRQ that was
1401 * raised.
1402 * host_int The contents of the HOST_INT
1403 * port.
1404 *
1405 * This function handles Tx EOF interrupts which are raised
1406 * by the adapter when it has completed sending the
1407 * contents of a buffer. If detemines which list/buffer
1408 * was completed and resets it. If the buffer was the last
1409 * in the channel (EOC), then the function checks to see if
1410 * another buffer is ready to send, and if so, sends a Tx
1411 * Go command. Finally, the driver activates/continues the
1412 * activity LED.
1413 *
1414 **************************************************************/
1415
1416 static u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int )
1417 {
1418 TLanPrivateInfo *priv = netdev_priv(dev);
1419 int eoc = 0;
1420 TLanList *head_list;
1421 dma_addr_t head_list_phys;
1422 u32 ack = 0;
1423 u16 tmpCStat;
1424
1425 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n",
1426 priv->txHead, priv->txTail );
1427 head_list = priv->txList + priv->txHead;
1428
1429 while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
1430 ack++;
1431 if ( ! bbuf ) {
1432 struct sk_buff *skb = TLan_GetSKB(head_list);
1433 pci_unmap_single(priv->pciDev, head_list->buffer[0].address,
1434 skb->len, PCI_DMA_TODEVICE);
1435 dev_kfree_skb_any(skb);
1436 head_list->buffer[8].address = 0;
1437 head_list->buffer[9].address = 0;
1438 }
1439
1440 if ( tmpCStat & TLAN_CSTAT_EOC )
1441 eoc = 1;
1442
1443 dev->stats.tx_bytes += head_list->frameSize;
1444
1445 head_list->cStat = TLAN_CSTAT_UNUSED;
1446 netif_start_queue(dev);
1447 CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS );
1448 head_list = priv->txList + priv->txHead;
1449 }
1450
1451 if (!ack)
1452 printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n");
1453
1454 if ( eoc ) {
1455 TLAN_DBG( TLAN_DEBUG_TX,
1456 "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n",
1457 priv->txHead, priv->txTail );
1458 head_list = priv->txList + priv->txHead;
1459 head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
1460 if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
1461 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
1462 ack |= TLAN_HC_GO;
1463 } else {
1464 priv->txInProgress = 0;
1465 }
1466 }
1467
1468 if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
1469 TLan_DioWrite8( dev->base_addr,
1470 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
1471 if ( priv->timer.function == NULL ) {
1472 priv->timer.function = &TLan_Timer;
1473 priv->timer.data = (unsigned long) dev;
1474 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1475 priv->timerSetAt = jiffies;
1476 priv->timerType = TLAN_TIMER_ACTIVITY;
1477 add_timer(&priv->timer);
1478 } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
1479 priv->timerSetAt = jiffies;
1480 }
1481 }
1482
1483 return ack;
1484
1485 } /* TLan_HandleTxEOF */
1486
1487
1488
1489
1490 /***************************************************************
1491 * TLan_HandleStatOverflow
1492 *
1493 * Returns:
1494 * 1
1495 * Parms:
1496 * dev Device assigned the IRQ that was
1497 * raised.
1498 * host_int The contents of the HOST_INT
1499 * port.
1500 *
1501 * This function handles the Statistics Overflow interrupt
1502 * which means that one or more of the TLAN statistics
1503 * registers has reached 1/2 capacity and needs to be read.
1504 *
1505 **************************************************************/
1506
1507 static u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int )
1508 {
1509 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1510
1511 return 1;
1512
1513 } /* TLan_HandleStatOverflow */
1514
1515
1516
1517
1518 /***************************************************************
1519 * TLan_HandleRxEOF
1520 *
1521 * Returns:
1522 * 1
1523 * Parms:
1524 * dev Device assigned the IRQ that was
1525 * raised.
1526 * host_int The contents of the HOST_INT
1527 * port.
1528 *
1529 * This function handles the Rx EOF interrupt which
1530 * indicates a frame has been received by the adapter from
1531 * the net and the frame has been transferred to memory.
1532 * The function determines the bounce buffer the frame has
1533 * been loaded into, creates a new sk_buff big enough to
1534 * hold the frame, and sends it to protocol stack. It
1535 * then resets the used buffer and appends it to the end
1536 * of the list. If the frame was the last in the Rx
1537 * channel (EOC), the function restarts the receive channel
1538 * by sending an Rx Go command to the adapter. Then it
1539 * activates/continues the activity LED.
1540 *
1541 **************************************************************/
1542
1543 static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int )
1544 {
1545 TLanPrivateInfo *priv = netdev_priv(dev);
1546 u32 ack = 0;
1547 int eoc = 0;
1548 u8 *head_buffer;
1549 TLanList *head_list;
1550 struct sk_buff *skb;
1551 TLanList *tail_list;
1552 u16 tmpCStat;
1553 dma_addr_t head_list_phys;
1554
1555 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n",
1556 priv->rxHead, priv->rxTail );
1557 head_list = priv->rxList + priv->rxHead;
1558 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1559
1560 while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
1561 dma_addr_t frameDma = head_list->buffer[0].address;
1562 u32 frameSize = head_list->frameSize;
1563 ack++;
1564 if (tmpCStat & TLAN_CSTAT_EOC)
1565 eoc = 1;
1566
1567 if (bbuf) {
1568 skb = netdev_alloc_skb(dev, frameSize + 7);
1569 if ( !skb )
1570 goto drop_and_reuse;
1571
1572 head_buffer = priv->rxBuffer
1573 + (priv->rxHead * TLAN_MAX_FRAME_SIZE);
1574 skb_reserve(skb, 2);
1575 pci_dma_sync_single_for_cpu(priv->pciDev,
1576 frameDma, frameSize,
1577 PCI_DMA_FROMDEVICE);
1578 skb_copy_from_linear_data(skb, head_buffer, frameSize);
1579 skb_put(skb, frameSize);
1580 dev->stats.rx_bytes += frameSize;
1581
1582 skb->protocol = eth_type_trans( skb, dev );
1583 netif_rx( skb );
1584 } else {
1585 struct sk_buff *new_skb;
1586
1587 new_skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 );
1588 if ( !new_skb )
1589 goto drop_and_reuse;
1590
1591 skb = TLan_GetSKB(head_list);
1592 pci_unmap_single(priv->pciDev, frameDma,
1593 TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
1594 skb_put( skb, frameSize );
1595
1596 dev->stats.rx_bytes += frameSize;
1597
1598 skb->protocol = eth_type_trans( skb, dev );
1599 netif_rx( skb );
1600
1601 skb_reserve( new_skb, NET_IP_ALIGN );
1602 head_list->buffer[0].address = pci_map_single(priv->pciDev,
1603 new_skb->data,
1604 TLAN_MAX_FRAME_SIZE,
1605 PCI_DMA_FROMDEVICE);
1606
1607 TLan_StoreSKB(head_list, new_skb);
1608
1609 }
1610 drop_and_reuse:
1611 head_list->forward = 0;
1612 head_list->cStat = 0;
1613 tail_list = priv->rxList + priv->rxTail;
1614 tail_list->forward = head_list_phys;
1615
1616 CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS );
1617 CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS );
1618 head_list = priv->rxList + priv->rxHead;
1619 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1620 }
1621
1622 if (!ack)
1623 printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n");
1624
1625
1626 if ( eoc ) {
1627 TLAN_DBG( TLAN_DEBUG_RX,
1628 "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n",
1629 priv->rxHead, priv->rxTail );
1630 head_list = priv->rxList + priv->rxHead;
1631 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1632 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
1633 ack |= TLAN_HC_GO | TLAN_HC_RT;
1634 priv->rxEocCount++;
1635 }
1636
1637 if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
1638 TLan_DioWrite8( dev->base_addr,
1639 TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
1640 if ( priv->timer.function == NULL ) {
1641 priv->timer.function = &TLan_Timer;
1642 priv->timer.data = (unsigned long) dev;
1643 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1644 priv->timerSetAt = jiffies;
1645 priv->timerType = TLAN_TIMER_ACTIVITY;
1646 add_timer(&priv->timer);
1647 } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
1648 priv->timerSetAt = jiffies;
1649 }
1650 }
1651
1652 dev->last_rx = jiffies;
1653
1654 return ack;
1655
1656 } /* TLan_HandleRxEOF */
1657
1658
1659
1660
1661 /***************************************************************
1662 * TLan_HandleDummy
1663 *
1664 * Returns:
1665 * 1
1666 * Parms:
1667 * dev Device assigned the IRQ that was
1668 * raised.
1669 * host_int The contents of the HOST_INT
1670 * port.
1671 *
1672 * This function handles the Dummy interrupt, which is
1673 * raised whenever a test interrupt is generated by setting
1674 * the Req_Int bit of HOST_CMD to 1.
1675 *
1676 **************************************************************/
1677
1678 static u32 TLan_HandleDummy( struct net_device *dev, u16 host_int )
1679 {
1680 printk( "TLAN: Test interrupt on %s.\n", dev->name );
1681 return 1;
1682
1683 } /* TLan_HandleDummy */
1684
1685
1686
1687
1688 /***************************************************************
1689 * TLan_HandleTxEOC
1690 *
1691 * Returns:
1692 * 1
1693 * Parms:
1694 * dev Device assigned the IRQ that was
1695 * raised.
1696 * host_int The contents of the HOST_INT
1697 * port.
1698 *
1699 * This driver is structured to determine EOC occurrences by
1700 * reading the CSTAT member of the list structure. Tx EOC
1701 * interrupts are disabled via the DIO INTDIS register.
1702 * However, TLAN chips before revision 3.0 didn't have this
1703 * functionality, so process EOC events if this is the
1704 * case.
1705 *
1706 **************************************************************/
1707
1708 static u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int )
1709 {
1710 TLanPrivateInfo *priv = netdev_priv(dev);
1711 TLanList *head_list;
1712 dma_addr_t head_list_phys;
1713 u32 ack = 1;
1714
1715 host_int = 0;
1716 if ( priv->tlanRev < 0x30 ) {
1717 TLAN_DBG( TLAN_DEBUG_TX,
1718 "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n",
1719 priv->txHead, priv->txTail );
1720 head_list = priv->txList + priv->txHead;
1721 head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
1722 if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
1723 netif_stop_queue(dev);
1724 outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
1725 ack |= TLAN_HC_GO;
1726 } else {
1727 priv->txInProgress = 0;
1728 }
1729 }
1730
1731 return ack;
1732
1733 } /* TLan_HandleTxEOC */
1734
1735
1736
1737
1738 /***************************************************************
1739 * TLan_HandleStatusCheck
1740 *
1741 * Returns:
1742 * 0 if Adapter check, 1 if Network Status check.
1743 * Parms:
1744 * dev Device assigned the IRQ that was
1745 * raised.
1746 * host_int The contents of the HOST_INT
1747 * port.
1748 *
1749 * This function handles Adapter Check/Network Status
1750 * interrupts generated by the adapter. It checks the
1751 * vector in the HOST_INT register to determine if it is
1752 * an Adapter Check interrupt. If so, it resets the
1753 * adapter. Otherwise it clears the status registers
1754 * and services the PHY.
1755 *
1756 **************************************************************/
1757
1758 static u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int )
1759 {
1760 TLanPrivateInfo *priv = netdev_priv(dev);
1761 u32 ack;
1762 u32 error;
1763 u8 net_sts;
1764 u32 phy;
1765 u16 tlphy_ctl;
1766 u16 tlphy_sts;
1767
1768 ack = 1;
1769 if ( host_int & TLAN_HI_IV_MASK ) {
1770 netif_stop_queue( dev );
1771 error = inl( dev->base_addr + TLAN_CH_PARM );
1772 printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error );
1773 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1774 outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
1775
1776 schedule_work(&priv->tlan_tqueue);
1777
1778 netif_wake_queue(dev);
1779 ack = 0;
1780 } else {
1781 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name );
1782 phy = priv->phy[priv->phyNum];
1783
1784 net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS );
1785 if ( net_sts ) {
1786 TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts );
1787 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n",
1788 dev->name, (unsigned) net_sts );
1789 }
1790 if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) {
1791 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts );
1792 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
1793 if ( ! ( tlphy_sts & TLAN_TS_POLOK ) &&
1794 ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
1795 tlphy_ctl |= TLAN_TC_SWAPOL;
1796 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
1797 } else if ( ( tlphy_sts & TLAN_TS_POLOK )
1798 && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
1799 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1800 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
1801 }
1802
1803 if (debug) {
1804 TLan_PhyPrint( dev );
1805 }
1806 }
1807 }
1808
1809 return ack;
1810
1811 } /* TLan_HandleStatusCheck */
1812
1813
1814
1815
1816 /***************************************************************
1817 * TLan_HandleRxEOC
1818 *
1819 * Returns:
1820 * 1
1821 * Parms:
1822 * dev Device assigned the IRQ that was
1823 * raised.
1824 * host_int The contents of the HOST_INT
1825 * port.
1826 *
1827 * This driver is structured to determine EOC occurrences by
1828 * reading the CSTAT member of the list structure. Rx EOC
1829 * interrupts are disabled via the DIO INTDIS register.
1830 * However, TLAN chips before revision 3.0 didn't have this
1831 * CSTAT member or a INTDIS register, so if this chip is
1832 * pre-3.0, process EOC interrupts normally.
1833 *
1834 **************************************************************/
1835
1836 static u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int )
1837 {
1838 TLanPrivateInfo *priv = netdev_priv(dev);
1839 dma_addr_t head_list_phys;
1840 u32 ack = 1;
1841
1842 if ( priv->tlanRev < 0x30 ) {
1843 TLAN_DBG( TLAN_DEBUG_RX,
1844 "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n",
1845 priv->rxHead, priv->rxTail );
1846 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1847 outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
1848 ack |= TLAN_HC_GO | TLAN_HC_RT;
1849 priv->rxEocCount++;
1850 }
1851
1852 return ack;
1853
1854 } /* TLan_HandleRxEOC */
1855
1856
1857
1858
1859 /*****************************************************************************
1860 ******************************************************************************
1861
1862 ThunderLAN Driver Timer Function
1863
1864 ******************************************************************************
1865 *****************************************************************************/
1866
1867
1868 /***************************************************************
1869 * TLan_Timer
1870 *
1871 * Returns:
1872 * Nothing
1873 * Parms:
1874 * data A value given to add timer when
1875 * add_timer was called.
1876 *
1877 * This function handles timed functionality for the
1878 * TLAN driver. The two current timer uses are for
1879 * delaying for autonegotionation and driving the ACT LED.
1880 * - Autonegotiation requires being allowed about
1881 * 2 1/2 seconds before attempting to transmit a
1882 * packet. It would be a very bad thing to hang
1883 * the kernel this long, so the driver doesn't
1884 * allow transmission 'til after this time, for
1885 * certain PHYs. It would be much nicer if all
1886 * PHYs were interrupt-capable like the internal
1887 * PHY.
1888 * - The ACT LED, which shows adapter activity, is
1889 * driven by the driver, and so must be left on
1890 * for a short period to power up the LED so it
1891 * can be seen. This delay can be changed by
1892 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1893 * if desired. 100 ms produces a slightly
1894 * sluggish response.
1895 *
1896 **************************************************************/
1897
1898 static void TLan_Timer( unsigned long data )
1899 {
1900 struct net_device *dev = (struct net_device *) data;
1901 TLanPrivateInfo *priv = netdev_priv(dev);
1902 u32 elapsed;
1903 unsigned long flags = 0;
1904
1905 priv->timer.function = NULL;
1906
1907 switch ( priv->timerType ) {
1908 #ifdef MONITOR
1909 case TLAN_TIMER_LINK_BEAT:
1910 TLan_PhyMonitor( dev );
1911 break;
1912 #endif
1913 case TLAN_TIMER_PHY_PDOWN:
1914 TLan_PhyPowerDown( dev );
1915 break;
1916 case TLAN_TIMER_PHY_PUP:
1917 TLan_PhyPowerUp( dev );
1918 break;
1919 case TLAN_TIMER_PHY_RESET:
1920 TLan_PhyReset( dev );
1921 break;
1922 case TLAN_TIMER_PHY_START_LINK:
1923 TLan_PhyStartLink( dev );
1924 break;
1925 case TLAN_TIMER_PHY_FINISH_AN:
1926 TLan_PhyFinishAutoNeg( dev );
1927 break;
1928 case TLAN_TIMER_FINISH_RESET:
1929 TLan_FinishReset( dev );
1930 break;
1931 case TLAN_TIMER_ACTIVITY:
1932 spin_lock_irqsave(&priv->lock, flags);
1933 if ( priv->timer.function == NULL ) {
1934 elapsed = jiffies - priv->timerSetAt;
1935 if ( elapsed >= TLAN_TIMER_ACT_DELAY ) {
1936 TLan_DioWrite8( dev->base_addr,
1937 TLAN_LED_REG, TLAN_LED_LINK );
1938 } else {
1939 priv->timer.function = &TLan_Timer;
1940 priv->timer.expires = priv->timerSetAt
1941 + TLAN_TIMER_ACT_DELAY;
1942 spin_unlock_irqrestore(&priv->lock, flags);
1943 add_timer( &priv->timer );
1944 break;
1945 }
1946 }
1947 spin_unlock_irqrestore(&priv->lock, flags);
1948 break;
1949 default:
1950 break;
1951 }
1952
1953 } /* TLan_Timer */
1954
1955
1956
1957
1958 /*****************************************************************************
1959 ******************************************************************************
1960
1961 ThunderLAN Driver Adapter Related Routines
1962
1963 ******************************************************************************
1964 *****************************************************************************/
1965
1966
1967 /***************************************************************
1968 * TLan_ResetLists
1969 *
1970 * Returns:
1971 * Nothing
1972 * Parms:
1973 * dev The device structure with the list
1974 * stuctures to be reset.
1975 *
1976 * This routine sets the variables associated with managing
1977 * the TLAN lists to their initial values.
1978 *
1979 **************************************************************/
1980
1981 static void TLan_ResetLists( struct net_device *dev )
1982 {
1983 TLanPrivateInfo *priv = netdev_priv(dev);
1984 int i;
1985 TLanList *list;
1986 dma_addr_t list_phys;
1987 struct sk_buff *skb;
1988
1989 priv->txHead = 0;
1990 priv->txTail = 0;
1991 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
1992 list = priv->txList + i;
1993 list->cStat = TLAN_CSTAT_UNUSED;
1994 if ( bbuf ) {
1995 list->buffer[0].address = priv->txBufferDMA
1996 + ( i * TLAN_MAX_FRAME_SIZE );
1997 } else {
1998 list->buffer[0].address = 0;
1999 }
2000 list->buffer[2].count = 0;
2001 list->buffer[2].address = 0;
2002 list->buffer[8].address = 0;
2003 list->buffer[9].address = 0;
2004 }
2005
2006 priv->rxHead = 0;
2007 priv->rxTail = TLAN_NUM_RX_LISTS - 1;
2008 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
2009 list = priv->rxList + i;
2010 list_phys = priv->rxListDMA + sizeof(TLanList) * i;
2011 list->cStat = TLAN_CSTAT_READY;
2012 list->frameSize = TLAN_MAX_FRAME_SIZE;
2013 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
2014 if ( bbuf ) {
2015 list->buffer[0].address = priv->rxBufferDMA
2016 + ( i * TLAN_MAX_FRAME_SIZE );
2017 } else {
2018 skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 );
2019 if ( !skb ) {
2020 pr_err("TLAN: out of memory for received data.\n" );
2021 break;
2022 }
2023
2024 skb_reserve( skb, NET_IP_ALIGN );
2025 list->buffer[0].address = pci_map_single(priv->pciDev,
2026 skb->data,
2027 TLAN_MAX_FRAME_SIZE,
2028 PCI_DMA_FROMDEVICE);
2029 TLan_StoreSKB(list, skb);
2030 }
2031 list->buffer[1].count = 0;
2032 list->buffer[1].address = 0;
2033 list->forward = list_phys + sizeof(TLanList);
2034 }
2035
2036 /* in case ran out of memory early, clear bits */
2037 while (i < TLAN_NUM_RX_LISTS) {
2038 TLan_StoreSKB(priv->rxList + i, NULL);
2039 ++i;
2040 }
2041 list->forward = 0;
2042
2043 } /* TLan_ResetLists */
2044
2045
2046 static void TLan_FreeLists( struct net_device *dev )
2047 {
2048 TLanPrivateInfo *priv = netdev_priv(dev);
2049 int i;
2050 TLanList *list;
2051 struct sk_buff *skb;
2052
2053 if ( ! bbuf ) {
2054 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
2055 list = priv->txList + i;
2056 skb = TLan_GetSKB(list);
2057 if ( skb ) {
2058 pci_unmap_single(priv->pciDev,
2059 list->buffer[0].address, skb->len,
2060 PCI_DMA_TODEVICE);
2061 dev_kfree_skb_any( skb );
2062 list->buffer[8].address = 0;
2063 list->buffer[9].address = 0;
2064 }
2065 }
2066
2067 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
2068 list = priv->rxList + i;
2069 skb = TLan_GetSKB(list);
2070 if ( skb ) {
2071 pci_unmap_single(priv->pciDev,
2072 list->buffer[0].address,
2073 TLAN_MAX_FRAME_SIZE,
2074 PCI_DMA_FROMDEVICE);
2075 dev_kfree_skb_any( skb );
2076 list->buffer[8].address = 0;
2077 list->buffer[9].address = 0;
2078 }
2079 }
2080 }
2081 } /* TLan_FreeLists */
2082
2083
2084
2085
2086 /***************************************************************
2087 * TLan_PrintDio
2088 *
2089 * Returns:
2090 * Nothing
2091 * Parms:
2092 * io_base Base IO port of the device of
2093 * which to print DIO registers.
2094 *
2095 * This function prints out all the internal (DIO)
2096 * registers of a TLAN chip.
2097 *
2098 **************************************************************/
2099
2100 static void TLan_PrintDio( u16 io_base )
2101 {
2102 u32 data0, data1;
2103 int i;
2104
2105 printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n",
2106 io_base );
2107 printk( "TLAN: Off. +0 +4\n" );
2108 for ( i = 0; i < 0x4C; i+= 8 ) {
2109 data0 = TLan_DioRead32( io_base, i );
2110 data1 = TLan_DioRead32( io_base, i + 0x4 );
2111 printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 );
2112 }
2113
2114 } /* TLan_PrintDio */
2115
2116
2117
2118
2119 /***************************************************************
2120 * TLan_PrintList
2121 *
2122 * Returns:
2123 * Nothing
2124 * Parms:
2125 * list A pointer to the TLanList structure to
2126 * be printed.
2127 * type A string to designate type of list,
2128 * "Rx" or "Tx".
2129 * num The index of the list.
2130 *
2131 * This function prints out the contents of the list
2132 * pointed to by the list parameter.
2133 *
2134 **************************************************************/
2135
2136 static void TLan_PrintList( TLanList *list, char *type, int num)
2137 {
2138 int i;
2139
2140 printk( "TLAN: %s List %d at %p\n", type, num, list );
2141 printk( "TLAN: Forward = 0x%08x\n", list->forward );
2142 printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat );
2143 printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize );
2144 /* for ( i = 0; i < 10; i++ ) { */
2145 for ( i = 0; i < 2; i++ ) {
2146 printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n",
2147 i, list->buffer[i].count, list->buffer[i].address );
2148 }
2149
2150 } /* TLan_PrintList */
2151
2152
2153
2154
2155 /***************************************************************
2156 * TLan_ReadAndClearStats
2157 *
2158 * Returns:
2159 * Nothing
2160 * Parms:
2161 * dev Pointer to device structure of adapter
2162 * to which to read stats.
2163 * record Flag indicating whether to add
2164 *
2165 * This functions reads all the internal status registers
2166 * of the TLAN chip, which clears them as a side effect.
2167 * It then either adds the values to the device's status
2168 * struct, or discards them, depending on whether record
2169 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2170 *
2171 **************************************************************/
2172
2173 static void TLan_ReadAndClearStats( struct net_device *dev, int record )
2174 {
2175 u32 tx_good, tx_under;
2176 u32 rx_good, rx_over;
2177 u32 def_tx, crc, code;
2178 u32 multi_col, single_col;
2179 u32 excess_col, late_col, loss;
2180
2181 outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR );
2182 tx_good = inb( dev->base_addr + TLAN_DIO_DATA );
2183 tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2184 tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
2185 tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2186
2187 outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR );
2188 rx_good = inb( dev->base_addr + TLAN_DIO_DATA );
2189 rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2190 rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
2191 rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2192
2193 outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR );
2194 def_tx = inb( dev->base_addr + TLAN_DIO_DATA );
2195 def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2196 crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2197 code = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2198
2199 outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
2200 multi_col = inb( dev->base_addr + TLAN_DIO_DATA );
2201 multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2202 single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2203 single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8;
2204
2205 outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
2206 excess_col = inb( dev->base_addr + TLAN_DIO_DATA );
2207 late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 );
2208 loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2209
2210 if ( record ) {
2211 dev->stats.rx_packets += rx_good;
2212 dev->stats.rx_errors += rx_over + crc + code;
2213 dev->stats.tx_packets += tx_good;
2214 dev->stats.tx_errors += tx_under + loss;
2215 dev->stats.collisions += multi_col + single_col + excess_col + late_col;
2216
2217 dev->stats.rx_over_errors += rx_over;
2218 dev->stats.rx_crc_errors += crc;
2219 dev->stats.rx_frame_errors += code;
2220
2221 dev->stats.tx_aborted_errors += tx_under;
2222 dev->stats.tx_carrier_errors += loss;
2223 }
2224
2225 } /* TLan_ReadAndClearStats */
2226
2227
2228
2229
2230 /***************************************************************
2231 * TLan_Reset
2232 *
2233 * Returns:
2234 * 0
2235 * Parms:
2236 * dev Pointer to device structure of adapter
2237 * to be reset.
2238 *
2239 * This function resets the adapter and it's physical
2240 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2241 * Programmer's Guide" for details. The routine tries to
2242 * implement what is detailed there, though adjustments
2243 * have been made.
2244 *
2245 **************************************************************/
2246
2247 static void
2248 TLan_ResetAdapter( struct net_device *dev )
2249 {
2250 TLanPrivateInfo *priv = netdev_priv(dev);
2251 int i;
2252 u32 addr;
2253 u32 data;
2254 u8 data8;
2255
2256 priv->tlanFullDuplex = FALSE;
2257 priv->phyOnline=0;
2258 netif_carrier_off(dev);
2259
2260 /* 1. Assert reset bit. */
2261
2262 data = inl(dev->base_addr + TLAN_HOST_CMD);
2263 data |= TLAN_HC_AD_RST;
2264 outl(data, dev->base_addr + TLAN_HOST_CMD);
2265
2266 udelay(1000);
2267
2268 /* 2. Turn off interrupts. ( Probably isn't necessary ) */
2269
2270 data = inl(dev->base_addr + TLAN_HOST_CMD);
2271 data |= TLAN_HC_INT_OFF;
2272 outl(data, dev->base_addr + TLAN_HOST_CMD);
2273
2274 /* 3. Clear AREGs and HASHs. */
2275
2276 for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) {
2277 TLan_DioWrite32( dev->base_addr, (u16) i, 0 );
2278 }
2279
2280 /* 4. Setup NetConfig register. */
2281
2282 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2283 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
2284
2285 /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2286
2287 outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD );
2288 outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD );
2289
2290 /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2291
2292 outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR );
2293 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
2294 TLan_SetBit( TLAN_NET_SIO_NMRST, addr );
2295
2296 /* 7. Setup the remaining registers. */
2297
2298 if ( priv->tlanRev >= 0x30 ) {
2299 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
2300 TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 );
2301 }
2302 TLan_PhyDetect( dev );
2303 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
2304
2305 if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) {
2306 data |= TLAN_NET_CFG_BIT;
2307 if ( priv->aui == 1 ) {
2308 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a );
2309 } else if ( priv->duplex == TLAN_DUPLEX_FULL ) {
2310 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 );
2311 priv->tlanFullDuplex = TRUE;
2312 } else {
2313 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 );
2314 }
2315 }
2316
2317 if ( priv->phyNum == 0 ) {
2318 data |= TLAN_NET_CFG_PHY_EN;
2319 }
2320 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
2321
2322 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2323 TLan_FinishReset( dev );
2324 } else {
2325 TLan_PhyPowerDown( dev );
2326 }
2327
2328 } /* TLan_ResetAdapter */
2329
2330
2331
2332
2333 static void
2334 TLan_FinishReset( struct net_device *dev )
2335 {
2336 TLanPrivateInfo *priv = netdev_priv(dev);
2337 u8 data;
2338 u32 phy;
2339 u8 sio;
2340 u16 status;
2341 u16 partner;
2342 u16 tlphy_ctl;
2343 u16 tlphy_par;
2344 u16 tlphy_id1, tlphy_id2;
2345 int i;
2346
2347 phy = priv->phy[priv->phyNum];
2348
2349 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
2350 if ( priv->tlanFullDuplex ) {
2351 data |= TLAN_NET_CMD_DUPLEX;
2352 }
2353 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data );
2354 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
2355 if ( priv->phyNum == 0 ) {
2356 data |= TLAN_NET_MASK_MASK7;
2357 }
2358 TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data );
2359 TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 );
2360 TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 );
2361 TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 );
2362
2363 if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) ||
2364 ( priv->aui ) ) {
2365 status = MII_GS_LINK;
2366 printk( "TLAN: %s: Link forced.\n", dev->name );
2367 } else {
2368 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2369 udelay( 1000 );
2370 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2371 if ( (status & MII_GS_LINK) &&
2372 /* We only support link info on Nat.Sem. PHY's */
2373 (tlphy_id1 == NAT_SEM_ID1) &&
2374 (tlphy_id2 == NAT_SEM_ID2) ) {
2375 TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner );
2376 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par );
2377
2378 printk( "TLAN: %s: Link active with ", dev->name );
2379 if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) {
2380 printk( "forced 10%sMbps %s-Duplex\n",
2381 tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
2382 tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
2383 } else {
2384 printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n",
2385 tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
2386 tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
2387 printk("TLAN: Partner capability: ");
2388 for (i = 5; i <= 10; i++)
2389 if (partner & (1<<i))
2390 printk("%s",media[i-5]);
2391 printk("\n");
2392 }
2393
2394 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
2395 #ifdef MONITOR
2396 /* We have link beat..for now anyway */
2397 priv->link = 1;
2398 /*Enabling link beat monitoring */
2399 TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT );
2400 #endif
2401 } else if (status & MII_GS_LINK) {
2402 printk( "TLAN: %s: Link active\n", dev->name );
2403 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
2404 }
2405 }
2406
2407 if ( priv->phyNum == 0 ) {
2408 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
2409 tlphy_ctl |= TLAN_TC_INTEN;
2410 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl );
2411 sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO );
2412 sio |= TLAN_NET_SIO_MINTEN;
2413 TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio );
2414 }
2415
2416 if ( status & MII_GS_LINK ) {
2417 TLan_SetMac( dev, 0, dev->dev_addr );
2418 priv->phyOnline = 1;
2419 outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
2420 if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) {
2421 outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
2422 }
2423 outl( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM );
2424 outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD );
2425 netif_carrier_on(dev);
2426 } else {
2427 printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n",
2428 dev->name );
2429 TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET );
2430 return;
2431 }
2432 TLan_SetMulticastList(dev);
2433
2434 } /* TLan_FinishReset */
2435
2436
2437
2438
2439 /***************************************************************
2440 * TLan_SetMac
2441 *
2442 * Returns:
2443 * Nothing
2444 * Parms:
2445 * dev Pointer to device structure of adapter
2446 * on which to change the AREG.
2447 * areg The AREG to set the address in (0 - 3).
2448 * mac A pointer to an array of chars. Each
2449 * element stores one byte of the address.
2450 * IE, it isn't in ascii.
2451 *
2452 * This function transfers a MAC address to one of the
2453 * TLAN AREGs (address registers). The TLAN chip locks
2454 * the register on writing to offset 0 and unlocks the
2455 * register after writing to offset 5. If NULL is passed
2456 * in mac, then the AREG is filled with 0's.
2457 *
2458 **************************************************************/
2459
2460 static void TLan_SetMac( struct net_device *dev, int areg, char *mac )
2461 {
2462 int i;
2463
2464 areg *= 6;
2465
2466 if ( mac != NULL ) {
2467 for ( i = 0; i < 6; i++ )
2468 TLan_DioWrite8( dev->base_addr,
2469 TLAN_AREG_0 + areg + i, mac[i] );
2470 } else {
2471 for ( i = 0; i < 6; i++ )
2472 TLan_DioWrite8( dev->base_addr,
2473 TLAN_AREG_0 + areg + i, 0 );
2474 }
2475
2476 } /* TLan_SetMac */
2477
2478
2479
2480
2481 /*****************************************************************************
2482 ******************************************************************************
2483
2484 ThunderLAN Driver PHY Layer Routines
2485
2486 ******************************************************************************
2487 *****************************************************************************/
2488
2489
2490
2491 /*********************************************************************
2492 * TLan_PhyPrint
2493 *
2494 * Returns:
2495 * Nothing
2496 * Parms:
2497 * dev A pointer to the device structure of the
2498 * TLAN device having the PHYs to be detailed.
2499 *
2500 * This function prints the registers a PHY (aka transceiver).
2501 *
2502 ********************************************************************/
2503
2504 static void TLan_PhyPrint( struct net_device *dev )
2505 {
2506 TLanPrivateInfo *priv = netdev_priv(dev);
2507 u16 i, data0, data1, data2, data3, phy;
2508
2509 phy = priv->phy[priv->phyNum];
2510
2511 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2512 printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name );
2513 } else if ( phy <= TLAN_PHY_MAX_ADDR ) {
2514 printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy );
2515 printk( "TLAN: Off. +0 +1 +2 +3 \n" );
2516 for ( i = 0; i < 0x20; i+= 4 ) {
2517 printk( "TLAN: 0x%02x", i );
2518 TLan_MiiReadReg( dev, phy, i, &data0 );
2519 printk( " 0x%04hx", data0 );
2520 TLan_MiiReadReg( dev, phy, i + 1, &data1 );
2521 printk( " 0x%04hx", data1 );
2522 TLan_MiiReadReg( dev, phy, i + 2, &data2 );
2523 printk( " 0x%04hx", data2 );
2524 TLan_MiiReadReg( dev, phy, i + 3, &data3 );
2525 printk( " 0x%04hx\n", data3 );
2526 }
2527 } else {
2528 printk( "TLAN: Device %s, Invalid PHY.\n", dev->name );
2529 }
2530
2531 } /* TLan_PhyPrint */
2532
2533
2534
2535
2536 /*********************************************************************
2537 * TLan_PhyDetect
2538 *
2539 * Returns:
2540 * Nothing
2541 * Parms:
2542 * dev A pointer to the device structure of the adapter
2543 * for which the PHY needs determined.
2544 *
2545 * So far I've found that adapters which have external PHYs
2546 * may also use the internal PHY for part of the functionality.
2547 * (eg, AUI/Thinnet). This function finds out if this TLAN
2548 * chip has an internal PHY, and then finds the first external
2549 * PHY (starting from address 0) if it exists).
2550 *
2551 ********************************************************************/
2552
2553 static void TLan_PhyDetect( struct net_device *dev )
2554 {
2555 TLanPrivateInfo *priv = netdev_priv(dev);
2556 u16 control;
2557 u16 hi;
2558 u16 lo;
2559 u32 phy;
2560
2561 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2562 priv->phyNum = 0xFFFF;
2563 return;
2564 }
2565
2566 TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi );
2567
2568 if ( hi != 0xFFFF ) {
2569 priv->phy[0] = TLAN_PHY_MAX_ADDR;
2570 } else {
2571 priv->phy[0] = TLAN_PHY_NONE;
2572 }
2573
2574 priv->phy[1] = TLAN_PHY_NONE;
2575 for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) {
2576 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control );
2577 TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi );
2578 TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo );
2579 if ( ( control != 0xFFFF ) ||
2580 ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) {
2581 TLAN_DBG( TLAN_DEBUG_GNRL,
2582 "PHY found at %02x %04x %04x %04x\n",
2583 phy, control, hi, lo );
2584 if ( ( priv->phy[1] == TLAN_PHY_NONE ) &&
2585 ( phy != TLAN_PHY_MAX_ADDR ) ) {
2586 priv->phy[1] = phy;
2587 }
2588 }
2589 }
2590
2591 if ( priv->phy[1] != TLAN_PHY_NONE ) {
2592 priv->phyNum = 1;
2593 } else if ( priv->phy[0] != TLAN_PHY_NONE ) {
2594 priv->phyNum = 0;
2595 } else {
2596 printk( "TLAN: Cannot initialize device, no PHY was found!\n" );
2597 }
2598
2599 } /* TLan_PhyDetect */
2600
2601
2602
2603
2604 static void TLan_PhyPowerDown( struct net_device *dev )
2605 {
2606 TLanPrivateInfo *priv = netdev_priv(dev);
2607 u16 value;
2608
2609 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name );
2610 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
2611 TLan_MiiSync( dev->base_addr );
2612 TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
2613 if ( ( priv->phyNum == 0 ) &&
2614 ( priv->phy[1] != TLAN_PHY_NONE ) &&
2615 ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) {
2616 TLan_MiiSync( dev->base_addr );
2617 TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value );
2618 }
2619
2620 /* Wait for 50 ms and powerup
2621 * This is abitrary. It is intended to make sure the
2622 * transceiver settles.
2623 */
2624 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP );
2625
2626 } /* TLan_PhyPowerDown */
2627
2628
2629
2630
2631 static void TLan_PhyPowerUp( struct net_device *dev )
2632 {
2633 TLanPrivateInfo *priv = netdev_priv(dev);
2634 u16 value;
2635
2636 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name );
2637 TLan_MiiSync( dev->base_addr );
2638 value = MII_GC_LOOPBK;
2639 TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
2640 TLan_MiiSync(dev->base_addr);
2641 /* Wait for 500 ms and reset the
2642 * transceiver. The TLAN docs say both 50 ms and
2643 * 500 ms, so do the longer, just in case.
2644 */
2645 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET );
2646
2647 } /* TLan_PhyPowerUp */
2648
2649
2650
2651
2652 static void TLan_PhyReset( struct net_device *dev )
2653 {
2654 TLanPrivateInfo *priv = netdev_priv(dev);
2655 u16 phy;
2656 u16 value;
2657
2658 phy = priv->phy[priv->phyNum];
2659
2660 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name );
2661 TLan_MiiSync( dev->base_addr );
2662 value = MII_GC_LOOPBK | MII_GC_RESET;
2663 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value );
2664 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
2665 while ( value & MII_GC_RESET ) {
2666 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
2667 }
2668
2669 /* Wait for 500 ms and initialize.
2670 * I don't remember why I wait this long.
2671 * I've changed this to 50ms, as it seems long enough.
2672 */
2673 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK );
2674
2675 } /* TLan_PhyReset */
2676
2677
2678
2679
2680 static void TLan_PhyStartLink( struct net_device *dev )
2681 {
2682 TLanPrivateInfo *priv = netdev_priv(dev);
2683 u16 ability;
2684 u16 control;
2685 u16 data;
2686 u16 phy;
2687 u16 status;
2688 u16 tctl;
2689
2690 phy = priv->phy[priv->phyNum];
2691 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name );
2692 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2693 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability );
2694
2695 if ( ( status & MII_GS_AUTONEG ) &&
2696 ( ! priv->aui ) ) {
2697 ability = status >> 11;
2698 if ( priv->speed == TLAN_SPEED_10 &&
2699 priv->duplex == TLAN_DUPLEX_HALF) {
2700 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000);
2701 } else if ( priv->speed == TLAN_SPEED_10 &&
2702 priv->duplex == TLAN_DUPLEX_FULL) {
2703 priv->tlanFullDuplex = TRUE;
2704 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100);
2705 } else if ( priv->speed == TLAN_SPEED_100 &&
2706 priv->duplex == TLAN_DUPLEX_HALF) {
2707 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000);
2708 } else if ( priv->speed == TLAN_SPEED_100 &&
2709 priv->duplex == TLAN_DUPLEX_FULL) {
2710 priv->tlanFullDuplex = TRUE;
2711 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100);
2712 } else {
2713
2714 /* Set Auto-Neg advertisement */
2715 TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1);
2716 /* Enablee Auto-Neg */
2717 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 );
2718 /* Restart Auto-Neg */
2719 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 );
2720 /* Wait for 4 sec for autonegotiation
2721 * to complete. The max spec time is less than this
2722 * but the card need additional time to start AN.
2723 * .5 sec should be plenty extra.
2724 */
2725 printk( "TLAN: %s: Starting autonegotiation.\n", dev->name );
2726 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN );
2727 return;
2728 }
2729
2730 }
2731
2732 if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) {
2733 priv->phyNum = 0;
2734 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2735 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
2736 TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN );
2737 return;
2738 } else if ( priv->phyNum == 0 ) {
2739 control = 0;
2740 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl );
2741 if ( priv->aui ) {
2742 tctl |= TLAN_TC_AUISEL;
2743 } else {
2744 tctl &= ~TLAN_TC_AUISEL;
2745 if ( priv->duplex == TLAN_DUPLEX_FULL ) {
2746 control |= MII_GC_DUPLEX;
2747 priv->tlanFullDuplex = TRUE;
2748 }
2749 if ( priv->speed == TLAN_SPEED_100 ) {
2750 control |= MII_GC_SPEEDSEL;
2751 }
2752 }
2753 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control );
2754 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl );
2755 }
2756
2757 /* Wait for 2 sec to give the transceiver time
2758 * to establish link.
2759 */
2760 TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET );
2761
2762 } /* TLan_PhyStartLink */
2763
2764
2765
2766
2767 static void TLan_PhyFinishAutoNeg( struct net_device *dev )
2768 {
2769 TLanPrivateInfo *priv = netdev_priv(dev);
2770 u16 an_adv;
2771 u16 an_lpa;
2772 u16 data;
2773 u16 mode;
2774 u16 phy;
2775 u16 status;
2776
2777 phy = priv->phy[priv->phyNum];
2778
2779 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2780 udelay( 1000 );
2781 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2782
2783 if ( ! ( status & MII_GS_AUTOCMPLT ) ) {
2784 /* Wait for 8 sec to give the process
2785 * more time. Perhaps we should fail after a while.
2786 */
2787 if (!priv->neg_be_verbose++) {
2788 pr_info("TLAN: Giving autonegotiation more time.\n");
2789 pr_info("TLAN: Please check that your adapter has\n");
2790 pr_info("TLAN: been properly connected to a HUB or Switch.\n");
2791 pr_info("TLAN: Trying to establish link in the background...\n");
2792 }
2793 TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN );
2794 return;
2795 }
2796
2797 printk( "TLAN: %s: Autonegotiation complete.\n", dev->name );
2798 TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv );
2799 TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa );
2800 mode = an_adv & an_lpa & 0x03E0;
2801 if ( mode & 0x0100 ) {
2802 priv->tlanFullDuplex = TRUE;
2803 } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) {
2804 priv->tlanFullDuplex = TRUE;
2805 }
2806
2807 if ( ( ! ( mode & 0x0180 ) ) &&
2808 ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) &&
2809 ( priv->phyNum != 0 ) ) {
2810 priv->phyNum = 0;
2811 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2812 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
2813 TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN );
2814 return;
2815 }
2816
2817 if ( priv->phyNum == 0 ) {
2818 if ( ( priv->duplex == TLAN_DUPLEX_FULL ) ||
2819 ( an_adv & an_lpa & 0x0040 ) ) {
2820 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL,
2821 MII_GC_AUTOENB | MII_GC_DUPLEX );
2822 pr_info("TLAN: Starting internal PHY with FULL-DUPLEX\n" );
2823 } else {
2824 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB );
2825 pr_info( "TLAN: Starting internal PHY with HALF-DUPLEX\n" );
2826 }
2827 }
2828
2829 /* Wait for 100 ms. No reason in partiticular.
2830 */
2831 TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET );
2832
2833 } /* TLan_PhyFinishAutoNeg */
2834
2835 #ifdef MONITOR
2836
2837 /*********************************************************************
2838 *
2839 * TLan_phyMonitor
2840 *
2841 * Returns:
2842 * None
2843 *
2844 * Params:
2845 * dev The device structure of this device.
2846 *
2847 *
2848 * This function monitors PHY condition by reading the status
2849 * register via the MII bus. This can be used to give info
2850 * about link changes (up/down), and possible switch to alternate
2851 * media.
2852 *
2853 * ******************************************************************/
2854
2855 void TLan_PhyMonitor( struct net_device *dev )
2856 {
2857 TLanPrivateInfo *priv = netdev_priv(dev);
2858 u16 phy;
2859 u16 phy_status;
2860
2861 phy = priv->phy[priv->phyNum];
2862
2863 /* Get PHY status register */
2864 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status );
2865
2866 /* Check if link has been lost */
2867 if (!(phy_status & MII_GS_LINK)) {
2868 if (priv->link) {
2869 priv->link = 0;
2870 printk(KERN_DEBUG "TLAN: %s has lost link\n", dev->name);
2871 netif_carrier_off(dev);
2872 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
2873 return;
2874 }
2875 }
2876
2877 /* Link restablished? */
2878 if ((phy_status & MII_GS_LINK) && !priv->link) {
2879 priv->link = 1;
2880 printk(KERN_DEBUG "TLAN: %s has reestablished link\n", dev->name);
2881 netif_carrier_on(dev);
2882 }
2883
2884 /* Setup a new monitor */
2885 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
2886 }
2887
2888 #endif /* MONITOR */
2889
2890
2891 /*****************************************************************************
2892 ******************************************************************************
2893
2894 ThunderLAN Driver MII Routines
2895
2896 These routines are based on the information in Chap. 2 of the
2897 "ThunderLAN Programmer's Guide", pp. 15-24.
2898
2899 ******************************************************************************
2900 *****************************************************************************/
2901
2902
2903 /***************************************************************
2904 * TLan_MiiReadReg
2905 *
2906 * Returns:
2907 * 0 if ack received ok
2908 * 1 otherwise.
2909 *
2910 * Parms:
2911 * dev The device structure containing
2912 * The io address and interrupt count
2913 * for this device.
2914 * phy The address of the PHY to be queried.
2915 * reg The register whose contents are to be
2916 * retrieved.
2917 * val A pointer to a variable to store the
2918 * retrieved value.
2919 *
2920 * This function uses the TLAN's MII bus to retrieve the contents
2921 * of a given register on a PHY. It sends the appropriate info
2922 * and then reads the 16-bit register value from the MII bus via
2923 * the TLAN SIO register.
2924 *
2925 **************************************************************/
2926
2927 static int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val )
2928 {
2929 u8 nack;
2930 u16 sio, tmp;
2931 u32 i;
2932 int err;
2933 int minten;
2934 TLanPrivateInfo *priv = netdev_priv(dev);
2935 unsigned long flags = 0;
2936
2937 err = FALSE;
2938 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2939 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
2940
2941 if (!in_irq())
2942 spin_lock_irqsave(&priv->lock, flags);
2943
2944 TLan_MiiSync(dev->base_addr);
2945
2946 minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
2947 if ( minten )
2948 TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio);
2949
2950 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
2951 TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */
2952 TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
2953 TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
2954
2955
2956 TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */
2957
2958 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */
2959 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2960 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */
2961
2962 nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */
2963 TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */
2964 if (nack) { /* No ACK, so fake it */
2965 for (i = 0; i < 16; i++) {
2966 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
2967 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2968 }
2969 tmp = 0xffff;
2970 err = TRUE;
2971 } else { /* ACK, so read data */
2972 for (tmp = 0, i = 0x8000; i; i >>= 1) {
2973 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
2974 if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio))
2975 tmp |= i;
2976 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2977 }
2978 }
2979
2980
2981 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */
2982 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2983
2984 if ( minten )
2985 TLan_SetBit(TLAN_NET_SIO_MINTEN, sio);
2986
2987 *val = tmp;
2988
2989 if (!in_irq())
2990 spin_unlock_irqrestore(&priv->lock, flags);
2991
2992 return err;
2993
2994 } /* TLan_MiiReadReg */
2995
2996
2997
2998
2999 /***************************************************************
3000 * TLan_MiiSendData
3001 *
3002 * Returns:
3003 * Nothing
3004 * Parms:
3005 * base_port The base IO port of the adapter in
3006 * question.
3007 * dev The address of the PHY to be queried.
3008 * data The value to be placed on the MII bus.
3009 * num_bits The number of bits in data that are to
3010 * be placed on the MII bus.
3011 *
3012 * This function sends on sequence of bits on the MII
3013 * configuration bus.
3014 *
3015 **************************************************************/
3016
3017 static void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits )
3018 {
3019 u16 sio;
3020 u32 i;
3021
3022 if ( num_bits == 0 )
3023 return;
3024
3025 outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
3026 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
3027 TLan_SetBit( TLAN_NET_SIO_MTXEN, sio );
3028
3029 for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) {
3030 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
3031 (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
3032 if ( data & i )
3033 TLan_SetBit( TLAN_NET_SIO_MDATA, sio );
3034 else
3035 TLan_ClearBit( TLAN_NET_SIO_MDATA, sio );
3036 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3037 (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
3038 }
3039
3040 } /* TLan_MiiSendData */
3041
3042
3043
3044
3045 /***************************************************************
3046 * TLan_MiiSync
3047 *
3048 * Returns:
3049 * Nothing
3050 * Parms:
3051 * base_port The base IO port of the adapter in
3052 * question.
3053 *
3054 * This functions syncs all PHYs in terms of the MII configuration
3055 * bus.
3056 *
3057 **************************************************************/
3058
3059 static void TLan_MiiSync( u16 base_port )
3060 {
3061 int i;
3062 u16 sio;
3063
3064 outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
3065 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
3066
3067 TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio );
3068 for ( i = 0; i < 32; i++ ) {
3069 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
3070 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3071 }
3072
3073 } /* TLan_MiiSync */
3074
3075
3076
3077
3078 /***************************************************************
3079 * TLan_MiiWriteReg
3080 *
3081 * Returns:
3082 * Nothing
3083 * Parms:
3084 * dev The device structure for the device
3085 * to write to.
3086 * phy The address of the PHY to be written to.
3087 * reg The register whose contents are to be
3088 * written.
3089 * val The value to be written to the register.
3090 *
3091 * This function uses the TLAN's MII bus to write the contents of a
3092 * given register on a PHY. It sends the appropriate info and then
3093 * writes the 16-bit register value from the MII configuration bus
3094 * via the TLAN SIO register.
3095 *
3096 **************************************************************/
3097
3098 static void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val )
3099 {
3100 u16 sio;
3101 int minten;
3102 unsigned long flags = 0;
3103 TLanPrivateInfo *priv = netdev_priv(dev);
3104
3105 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
3106 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
3107
3108 if (!in_irq())
3109 spin_lock_irqsave(&priv->lock, flags);
3110
3111 TLan_MiiSync( dev->base_addr );
3112
3113 minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
3114 if ( minten )
3115 TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio );
3116
3117 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
3118 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */
3119 TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
3120 TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
3121
3122 TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */
3123 TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */
3124
3125 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */
3126 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3127
3128 if ( minten )
3129 TLan_SetBit( TLAN_NET_SIO_MINTEN, sio );
3130
3131 if (!in_irq())
3132 spin_unlock_irqrestore(&priv->lock, flags);
3133
3134 } /* TLan_MiiWriteReg */
3135
3136
3137
3138
3139 /*****************************************************************************
3140 ******************************************************************************
3141
3142 ThunderLAN Driver Eeprom routines
3143
3144 The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A
3145 EEPROM. These functions are based on information in Microchip's
3146 data sheet. I don't know how well this functions will work with
3147 other EEPROMs.
3148
3149 ******************************************************************************
3150 *****************************************************************************/
3151
3152
3153 /***************************************************************
3154 * TLan_EeSendStart
3155 *
3156 * Returns:
3157 * Nothing
3158 * Parms:
3159 * io_base The IO port base address for the
3160 * TLAN device with the EEPROM to
3161 * use.
3162 *
3163 * This function sends a start cycle to an EEPROM attached
3164 * to a TLAN chip.
3165 *
3166 **************************************************************/
3167
3168 static void TLan_EeSendStart( u16 io_base )
3169 {
3170 u16 sio;
3171
3172 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3173 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3174
3175 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3176 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3177 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3178 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3179 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3180
3181 } /* TLan_EeSendStart */
3182
3183
3184
3185
3186 /***************************************************************
3187 * TLan_EeSendByte
3188 *
3189 * Returns:
3190 * If the correct ack was received, 0, otherwise 1
3191 * Parms: io_base The IO port base address for the
3192 * TLAN device with the EEPROM to
3193 * use.
3194 * data The 8 bits of information to
3195 * send to the EEPROM.
3196 * stop If TLAN_EEPROM_STOP is passed, a
3197 * stop cycle is sent after the
3198 * byte is sent after the ack is
3199 * read.
3200 *
3201 * This function sends a byte on the serial EEPROM line,
3202 * driving the clock to send each bit. The function then
3203 * reverses transmission direction and reads an acknowledge
3204 * bit.
3205 *
3206 **************************************************************/
3207
3208 static int TLan_EeSendByte( u16 io_base, u8 data, int stop )
3209 {
3210 int err;
3211 u8 place;
3212 u16 sio;
3213
3214 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3215 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3216
3217 /* Assume clock is low, tx is enabled; */
3218 for ( place = 0x80; place != 0; place >>= 1 ) {
3219 if ( place & data )
3220 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3221 else
3222 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3223 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3224 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3225 }
3226 TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
3227 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3228 err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio );
3229 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3230 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3231
3232 if ( ( ! err ) && stop ) {
3233 /* STOP, raise data while clock is high */
3234 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3235 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3236 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3237 }
3238
3239 return ( err );
3240
3241 } /* TLan_EeSendByte */
3242
3243
3244
3245
3246 /***************************************************************
3247 * TLan_EeReceiveByte
3248 *
3249 * Returns:
3250 * Nothing
3251 * Parms:
3252 * io_base The IO port base address for the
3253 * TLAN device with the EEPROM to
3254 * use.
3255 * data An address to a char to hold the
3256 * data sent from the EEPROM.
3257 * stop If TLAN_EEPROM_STOP is passed, a
3258 * stop cycle is sent after the
3259 * byte is received, and no ack is
3260 * sent.
3261 *
3262 * This function receives 8 bits of data from the EEPROM
3263 * over the serial link. It then sends and ack bit, or no
3264 * ack and a stop bit. This function is used to retrieve
3265 * data after the address of a byte in the EEPROM has been
3266 * sent.
3267 *
3268 **************************************************************/
3269
3270 static void TLan_EeReceiveByte( u16 io_base, u8 *data, int stop )
3271 {
3272 u8 place;
3273 u16 sio;
3274
3275 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3276 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3277 *data = 0;
3278
3279 /* Assume clock is low, tx is enabled; */
3280 TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
3281 for ( place = 0x80; place; place >>= 1 ) {
3282 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3283 if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) )
3284 *data |= place;
3285 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3286 }
3287
3288 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3289 if ( ! stop ) {
3290 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */
3291 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3292 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3293 } else {
3294 TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */
3295 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3296 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3297 /* STOP, raise data while clock is high */
3298 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3299 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3300 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3301 }
3302
3303 } /* TLan_EeReceiveByte */
3304
3305
3306
3307
3308 /***************************************************************
3309 * TLan_EeReadByte
3310 *
3311 * Returns:
3312 * No error = 0, else, the stage at which the error
3313 * occurred.
3314 * Parms:
3315 * io_base The IO port base address for the
3316 * TLAN device with the EEPROM to
3317 * use.
3318 * ee_addr The address of the byte in the
3319 * EEPROM whose contents are to be
3320 * retrieved.
3321 * data An address to a char to hold the
3322 * data obtained from the EEPROM.
3323 *
3324 * This function reads a byte of information from an byte
3325 * cell in the EEPROM.
3326 *
3327 **************************************************************/
3328
3329 static int TLan_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data )
3330 {
3331 int err;
3332 TLanPrivateInfo *priv = netdev_priv(dev);
3333 unsigned long flags = 0;
3334 int ret=0;
3335
3336 spin_lock_irqsave(&priv->lock, flags);
3337
3338 TLan_EeSendStart( dev->base_addr );
3339 err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK );
3340 if (err)
3341 {
3342 ret=1;
3343 goto fail;
3344 }
3345 err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK );
3346 if (err)
3347 {
3348 ret=2;
3349 goto fail;
3350 }
3351 TLan_EeSendStart( dev->base_addr );
3352 err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK );
3353 if (err)
3354 {
3355 ret=3;
3356 goto fail;
3357 }
3358 TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP );
3359 fail:
3360 spin_unlock_irqrestore(&priv->lock, flags);
3361
3362 return ret;
3363
3364 } /* TLan_EeReadByte */
3365
3366
3367
Support for the Chinese Samsung S3C2440 based development boards