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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*******************************************************************************
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 ** This file is best viewed/edited with columns>=132.
17 *
18 ** Useful (if not required) reading:
19 *
20 * Texas Instruments, ThunderLAN Programmer's Guide,
21 * TI Literature Number SPWU013A
22 * available in PDF format from www.ti.com
23 * Level One, LXT901 and LXT970 Data Sheets
24 * available in PDF format from www.level1.com
25 * National Semiconductor, DP83840A Data Sheet
26 * available in PDF format from www.national.com
27 * Microchip Technology, 24C01A/02A/04A Data Sheet
28 * available in PDF format from www.microchip.com
29 *
30 * Change History
31 *
32 * Tigran Aivazian <tigran@sco.com>: TLan_PciProbe() now uses
33 * new PCI BIOS interface.
34 * Alan Cox <alan@redhat.com>: Fixed the out of memory
35 * handling.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040036 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer!
38 *
39 * v1.1 Dec 20, 1999 - Removed linux version checking
Jeff Garzik6aa20a22006-09-13 13:24:59 -040040 * Patch from Tigran Aivazian.
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 * - v1.1 includes Alan's SMP updates.
42 * - We still have problems on SMP though,
Jeff Garzik6aa20a22006-09-13 13:24:59 -040043 * but I'm looking into that.
44 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070045 * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock.
46 * - Removed dependency of HZ being 100.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040047 * - We now allow higher priority timers to
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 * overwrite timers like TLAN_TIMER_ACTIVITY
49 * Patch from John Cagle <john.cagle@compaq.com>.
50 * - Fixed a few compiler warnings.
51 *
52 * v1.3 Feb 04, 2000 - Fixed the remaining HZ issues.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040053 * - Removed call to pci_present().
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 * - Removed SA_INTERRUPT flag from irq handler.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040055 * - Added __init and __initdata to reduce resisdent
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 * code size.
57 * - Driver now uses module_init/module_exit.
58 * - Rewrote init_module and tlan_probe to
59 * share a lot more code. We now use tlan_probe
60 * with builtin and module driver.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040061 * - Driver ported to new net API.
62 * - tlan.txt has been reworked to reflect current
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 * driver (almost)
64 * - Other minor stuff
65 *
66 * v1.4 Feb 10, 2000 - Updated with more changes required after Dave's
67 * network cleanup in 2.3.43pre7 (Tigran & myself)
68 * - Minor stuff.
69 *
70 * v1.5 March 22, 2000 - Fixed another timer bug that would hang the driver
71 * if no cable/link were present.
72 * - Cosmetic changes.
73 * - TODO: Port completely to new PCI/DMA API
74 * Auto-Neg fallback.
75 *
76 * v1.6 April 04, 2000 - Fixed driver support for kernel-parameters. Haven't
Jeff Garzik6aa20a22006-09-13 13:24:59 -040077 * tested it though, as the kernel support is currently
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 * broken (2.3.99p4p3).
79 * - Updated tlan.txt accordingly.
80 * - Adjusted minimum/maximum frame length.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040081 * - There is now a TLAN website up at
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 * http://tlan.kernel.dk
83 *
84 * v1.7 April 07, 2000 - Started to implement custom ioctls. Driver now
85 * reports PHY information when used with Donald
86 * Beckers userspace MII diagnostics utility.
87 *
88 * v1.8 April 23, 2000 - Fixed support for forced speed/duplex settings.
89 * - Added link information to Auto-Neg and forced
90 * modes. When NIC operates with auto-neg the driver
91 * will report Link speed & duplex modes as well as
92 * link partner abilities. When forced link is used,
93 * the driver will report status of the established
94 * link.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040095 * Please read tlan.txt for additional information.
96 * - Removed call to check_region(), and used
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 * return value of request_region() instead.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040098 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 * v1.8a May 28, 2000 - Minor updates.
100 *
101 * v1.9 July 25, 2000 - Fixed a few remaining Full-Duplex issues.
102 * - Updated with timer fixes from Andrew Morton.
103 * - Fixed module race in TLan_Open.
104 * - Added routine to monitor PHY status.
105 * - Added activity led support for Proliant devices.
106 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400107 * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers
108 * like the Compaq NetFlex3/E.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109 * - Rewrote tlan_probe to better handle multiple
110 * bus probes. Probing and device setup is now
111 * done through TLan_Probe and TLan_init_one. Actual
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400112 * hardware probe is done with kernel API and
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 * TLan_EisaProbe.
114 * - Adjusted debug information for probing.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400115 * - Fixed bug that would cause general debug information
116 * to be printed after driver removal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 * - Added transmit timeout handling.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400118 * - Fixed OOM return values in tlan_probe.
119 * - Fixed possible mem leak in tlan_exit
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 * (now tlan_remove_one).
121 * - Fixed timer bug in TLan_phyMonitor.
122 * - This driver version is alpha quality, please
123 * send me any bug issues you may encounter.
124 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400125 * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 * set for EISA cards.
127 * - Added support for NetFlex3/E with nibble-rate
128 * 10Base-T PHY. This is untestet as I haven't got
129 * one of these cards.
130 * - Fixed timer being added twice.
131 * - Disabled PhyMonitoring by default as this is
132 * work in progress. Define MONITOR to enable it.
133 * - Now we don't display link info with PHYs that
134 * doesn't support it (level1).
135 * - Incresed tx_timeout beacuse of auto-neg.
136 * - Adjusted timers for forced speeds.
137 *
138 * v1.12 Oct 12, 2000 - Minor fixes (memleak, init, etc.)
139 *
140 * v1.13 Nov 28, 2000 - Stop flooding console with auto-neg issues
141 * when link can't be established.
142 * - Added the bbuf option as a kernel parameter.
143 * - Fixed ioaddr probe bug.
144 * - Fixed stupid deadlock with MII interrupts.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400145 * - Added support for speed/duplex selection with
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 * multiple nics.
147 * - Added partly fix for TX Channel lockup with
148 * TLAN v1.0 silicon. This needs to be investigated
149 * further.
150 *
151 * v1.14 Dec 16, 2000 - Added support for servicing multiple frames per.
152 * interrupt. Thanks goes to
153 * Adam Keys <adam@ti.com>
154 * Denis Beaudoin <dbeaudoin@ti.com>
155 * for providing the patch.
156 * - Fixed auto-neg output when using multiple
157 * adapters.
158 * - Converted to use new taskq interface.
159 *
160 * v1.14a Jan 6, 2001 - Minor adjustments (spinlocks, etc.)
161 *
162 * Samuel Chessman <chessman@tux.org> New Maintainer!
163 *
164 * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be
165 * 10T half duplex no loopback
166 * Thanks to Gunnar Eikman
167 *******************************************************************************/
168
169#include <linux/module.h>
170#include <linux/init.h>
171#include <linux/ioport.h>
172#include <linux/eisa.h>
173#include <linux/pci.h>
Domen Puncer1e7f0bd2005-06-26 18:22:14 -0400174#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175#include <linux/netdevice.h>
176#include <linux/etherdevice.h>
177#include <linux/delay.h>
178#include <linux/spinlock.h>
179#include <linux/workqueue.h>
180#include <linux/mii.h>
181
182#include "tlan.h"
183
184typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 );
185
186
187/* For removing EISA devices */
188static struct net_device *TLan_Eisa_Devices;
189
190static int TLanDevicesInstalled;
191
192/* Set speed, duplex and aui settings */
193static int aui[MAX_TLAN_BOARDS];
194static int duplex[MAX_TLAN_BOARDS];
195static int speed[MAX_TLAN_BOARDS];
196static int boards_found;
Stephen Hemminger15efa9b2005-05-04 15:33:11 -0700197module_param_array(aui, int, NULL, 0);
198module_param_array(duplex, int, NULL, 0);
199module_param_array(speed, int, NULL, 0);
200MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
201MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
202MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203
204MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
205MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
206MODULE_LICENSE("GPL");
207
208
209/* Define this to enable Link beat monitoring */
210#undef MONITOR
211
212/* Turn on debugging. See Documentation/networking/tlan.txt for details */
213static int debug;
Stephen Hemminger15efa9b2005-05-04 15:33:11 -0700214module_param(debug, int, 0);
215MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216
217static int bbuf;
Stephen Hemminger15efa9b2005-05-04 15:33:11 -0700218module_param(bbuf, int, 0);
219MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)");
220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221static u8 *TLanPadBuffer;
222static dma_addr_t TLanPadBufferDMA;
223static char TLanSignature[] = "TLAN";
224static const char tlan_banner[] = "ThunderLAN driver v1.15\n";
225static int tlan_have_pci;
226static int tlan_have_eisa;
227
228static const char *media[] = {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400229 "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 "100baseTx-FD", "100baseT4", NULL
231};
232
233static struct board {
234 const char *deviceLabel;
235 u32 flags;
236 u16 addrOfs;
237} board_info[] = {
238 { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
239 { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
240 { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
241 { "Compaq NetFlex-3/P", TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
242 { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
243 { "Compaq Netelligent Integrated 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
244 { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 },
245 { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 },
246 { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
247 { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 },
248 { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 },
249 { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
250 { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 },
251 { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400252 TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
254};
255
256static 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};
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400285MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286
287static void TLan_EisaProbe( void );
288static void TLan_Eisa_Cleanup( void );
289static int TLan_Init( struct net_device * );
290static int TLan_Open( struct net_device *dev );
291static int TLan_StartTx( struct sk_buff *, struct net_device *);
David Howells7d12e782006-10-05 14:55:46 +0100292static irqreturn_t TLan_HandleInterrupt( int, void *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293static int TLan_Close( struct net_device *);
294static struct net_device_stats *TLan_GetStats( struct net_device *);
295static void TLan_SetMulticastList( struct net_device *);
296static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd);
297static int TLan_probe1( struct pci_dev *pdev, long ioaddr, int irq, int rev, const struct pci_device_id *ent);
298static void TLan_tx_timeout( struct net_device *dev);
David Howellsc4028952006-11-22 14:57:56 +0000299static void TLan_tx_timeout_work(struct work_struct *work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent);
301
302static u32 TLan_HandleInvalid( struct net_device *, u16 );
303static u32 TLan_HandleTxEOF( struct net_device *, u16 );
304static u32 TLan_HandleStatOverflow( struct net_device *, u16 );
305static u32 TLan_HandleRxEOF( struct net_device *, u16 );
306static u32 TLan_HandleDummy( struct net_device *, u16 );
307static u32 TLan_HandleTxEOC( struct net_device *, u16 );
308static u32 TLan_HandleStatusCheck( struct net_device *, u16 );
309static u32 TLan_HandleRxEOC( struct net_device *, u16 );
310
311static void TLan_Timer( unsigned long );
312
313static void TLan_ResetLists( struct net_device * );
314static void TLan_FreeLists( struct net_device * );
315static void TLan_PrintDio( u16 );
316static void TLan_PrintList( TLanList *, char *, int );
317static void TLan_ReadAndClearStats( struct net_device *, int );
318static void TLan_ResetAdapter( struct net_device * );
319static void TLan_FinishReset( struct net_device * );
320static void TLan_SetMac( struct net_device *, int areg, char *mac );
321
322static void TLan_PhyPrint( struct net_device * );
323static void TLan_PhyDetect( struct net_device * );
324static void TLan_PhyPowerDown( struct net_device * );
325static void TLan_PhyPowerUp( struct net_device * );
326static void TLan_PhyReset( struct net_device * );
327static void TLan_PhyStartLink( struct net_device * );
328static void TLan_PhyFinishAutoNeg( struct net_device * );
329#ifdef MONITOR
330static void TLan_PhyMonitor( struct net_device * );
331#endif
332
333/*
334static int TLan_PhyNop( struct net_device * );
335static int TLan_PhyInternalCheck( struct net_device * );
336static int TLan_PhyInternalService( struct net_device * );
337static int TLan_PhyDp83840aCheck( struct net_device * );
338*/
339
340static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * );
341static void TLan_MiiSendData( u16, u32, unsigned );
342static void TLan_MiiSync( u16 );
343static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 );
344
345static void TLan_EeSendStart( u16 );
346static int TLan_EeSendByte( u16, u8, int );
347static void TLan_EeReceiveByte( u16, u8 *, int );
348static int TLan_EeReadByte( struct net_device *, u8, u8 * );
349
350
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400351static void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb)
353{
354 unsigned long addr = (unsigned long)skb;
355 tag->buffer[9].address = (u32)addr;
356 addr >>= 31; /* >>= 32 is undefined for 32bit arch, stupid C */
357 addr >>= 1;
358 tag->buffer[8].address = (u32)addr;
359}
360
361static struct sk_buff *
362TLan_GetSKB( struct tlan_list_tag *tag)
363{
364 unsigned long addr = tag->buffer[8].address;
365 addr <<= 31;
366 addr <<= 1;
367 addr |= tag->buffer[9].address;
368 return (struct sk_buff *) addr;
369}
370
371
372static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = {
373 TLan_HandleInvalid,
374 TLan_HandleTxEOF,
375 TLan_HandleStatOverflow,
376 TLan_HandleRxEOF,
377 TLan_HandleDummy,
378 TLan_HandleTxEOC,
379 TLan_HandleStatusCheck,
380 TLan_HandleRxEOC
381};
382
383static inline void
384TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type )
385{
386 TLanPrivateInfo *priv = netdev_priv(dev);
387 unsigned long flags = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400388
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 if (!in_irq())
390 spin_lock_irqsave(&priv->lock, flags);
391 if ( priv->timer.function != NULL &&
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400392 priv->timerType != TLAN_TIMER_ACTIVITY ) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 if (!in_irq())
394 spin_unlock_irqrestore(&priv->lock, flags);
395 return;
396 }
397 priv->timer.function = &TLan_Timer;
398 if (!in_irq())
399 spin_unlock_irqrestore(&priv->lock, flags);
400
401 priv->timer.data = (unsigned long) dev;
402 priv->timerSetAt = jiffies;
403 priv->timerType = type;
404 mod_timer(&priv->timer, jiffies + ticks);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400405
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406} /* TLan_SetTimer */
407
408
409/*****************************************************************************
410******************************************************************************
411
412 ThunderLAN Driver Primary Functions
413
414 These functions are more or less common to all Linux network drivers.
415
416******************************************************************************
417*****************************************************************************/
418
419
420
421
422
423 /***************************************************************
424 * tlan_remove_one
425 *
426 * Returns:
427 * Nothing
428 * Parms:
429 * None
430 *
431 * Goes through the TLanDevices list and frees the device
432 * structs and memory associated with each device (lists
433 * and buffers). It also ureserves the IO port regions
434 * associated with this device.
435 *
436 **************************************************************/
437
438
439static void __devexit tlan_remove_one( struct pci_dev *pdev)
440{
441 struct net_device *dev = pci_get_drvdata( pdev );
442 TLanPrivateInfo *priv = netdev_priv(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 unregister_netdev( dev );
445
446 if ( priv->dmaStorage ) {
447 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA );
448 }
449
450#ifdef CONFIG_PCI
451 pci_release_regions(pdev);
452#endif
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400453
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 free_netdev( dev );
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400455
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 pci_set_drvdata( pdev, NULL );
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400457}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
459static struct pci_driver tlan_driver = {
460 .name = "tlan",
461 .id_table = tlan_pci_tbl,
462 .probe = tlan_init_one,
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400463 .remove = __devexit_p(tlan_remove_one),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464};
465
466static int __init tlan_probe(void)
467{
468 static int pad_allocated;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400469
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 printk(KERN_INFO "%s", tlan_banner);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400471
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 TLanPadBuffer = (u8 *) pci_alloc_consistent(NULL, TLAN_MIN_FRAME_SIZE, &TLanPadBufferDMA);
473
474 if (TLanPadBuffer == NULL) {
475 printk(KERN_ERR "TLAN: Could not allocate memory for pad buffer.\n");
476 return -ENOMEM;
477 }
478
479 memset(TLanPadBuffer, 0, TLAN_MIN_FRAME_SIZE);
480 pad_allocated = 1;
481
482 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400483
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 /* Use new style PCI probing. Now the kernel will
485 do most of this for us */
486 pci_register_driver(&tlan_driver);
487
488 TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
489 TLan_EisaProbe();
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400490
491 printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s",
493 tlan_have_pci, tlan_have_eisa);
494
495 if (TLanDevicesInstalled == 0) {
496 pci_unregister_driver(&tlan_driver);
497 pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA);
498 return -ENODEV;
499 }
500 return 0;
501}
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400502
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503
504static int __devinit tlan_init_one( struct pci_dev *pdev,
505 const struct pci_device_id *ent)
506{
507 return TLan_probe1( pdev, -1, -1, 0, ent);
508}
509
510
511/*
512 ***************************************************************
513 * tlan_probe1
514 *
515 * Returns:
516 * 0 on success, error code on error
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400517 * Parms:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 * none
519 *
520 * The name is lower case to fit in with all the rest of
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400521 * the netcard_probe names. This function looks for
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 * another TLan based adapter, setting it up with the
523 * allocated device struct if one is found.
524 * tlan_probe has been ported to the new net API and
525 * now allocates its own device structure. This function
526 * is also used by modules.
527 *
528 **************************************************************/
529
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400530static int __devinit TLan_probe1(struct pci_dev *pdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 long ioaddr, int irq, int rev, const struct pci_device_id *ent )
532{
533
534 struct net_device *dev;
535 TLanPrivateInfo *priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 u16 device_id;
537 int reg, rc = -ENODEV;
538
Adrian Bunkad9f6712006-02-05 00:37:47 +0100539#ifdef CONFIG_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540 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 }
Adrian Bunkad9f6712006-02-05 00:37:47 +0100551#endif /* CONFIG_PCI */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552
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_MODULE_OWNER(dev);
560 SET_NETDEV_DEV(dev, &pdev->dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400561
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 priv = netdev_priv(dev);
563
564 priv->pciDev = pdev;
David Howellsc4028952006-11-22 14:57:56 +0000565 priv->dev = dev;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400566
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 /* Is this a PCI device? */
568 if (pdev) {
569 u32 pci_io_base = 0;
570
571 priv->adapter = &board_info[ent->driver_data];
572
Domen Puncer1e7f0bd2005-06-26 18:22:14 -0400573 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 if (rc) {
575 printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n");
576 goto err_out_free_dev;
577 }
578
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 for ( reg= 0; reg <= 5; reg ++ ) {
580 if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
581 pci_io_base = pci_resource_start(pdev, reg);
582 TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n",
583 pci_io_base);
584 break;
585 }
586 }
587 if (!pci_io_base) {
588 printk(KERN_ERR "TLAN: No IO mappings available\n");
589 rc = -EIO;
590 goto err_out_free_dev;
591 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400592
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 dev->base_addr = pci_io_base;
594 dev->irq = pdev->irq;
Auke Kok44c10132007-06-08 15:46:36 -0700595 priv->adapterRev = pdev->revision;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 pci_set_master(pdev);
597 pci_set_drvdata(pdev, dev);
598
599 } else { /* EISA card */
600 /* This is a hack. We need to know which board structure
601 * is suited for this adapter */
602 device_id = inw(ioaddr + EISA_ID2);
603 priv->is_eisa = 1;
604 if (device_id == 0x20F1) {
605 priv->adapter = &board_info[13]; /* NetFlex-3/E */
606 priv->adapterRev = 23; /* TLAN 2.3 */
607 } else {
608 priv->adapter = &board_info[14];
609 priv->adapterRev = 10; /* TLAN 1.0 */
610 }
611 dev->base_addr = ioaddr;
612 dev->irq = irq;
613 }
614
615 /* Kernel parameters */
616 if (dev->mem_start) {
617 priv->aui = dev->mem_start & 0x01;
618 priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 : (dev->mem_start & 0x06) >> 1;
619 priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 : (dev->mem_start & 0x18) >> 3;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400620
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621 if (priv->speed == 0x1) {
622 priv->speed = TLAN_SPEED_10;
623 } else if (priv->speed == 0x2) {
624 priv->speed = TLAN_SPEED_100;
625 }
626 debug = priv->debug = dev->mem_end;
627 } else {
628 priv->aui = aui[boards_found];
629 priv->speed = speed[boards_found];
630 priv->duplex = duplex[boards_found];
631 priv->debug = debug;
632 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400633
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 /* This will be used when we get an adapter error from
635 * within our irq handler */
David Howellsc4028952006-11-22 14:57:56 +0000636 INIT_WORK(&priv->tlan_tqueue, TLan_tx_timeout_work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637
638 spin_lock_init(&priv->lock);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400639
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640 rc = TLan_Init(dev);
641 if (rc) {
642 printk(KERN_ERR "TLAN: Could not set up device.\n");
643 goto err_out_free_dev;
644 }
645
646 rc = register_netdev(dev);
647 if (rc) {
648 printk(KERN_ERR "TLAN: Could not register device.\n");
649 goto err_out_uninit;
650 }
651
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 TLanDevicesInstalled++;
654 boards_found++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 /* pdev is NULL if this is an EISA device */
657 if (pdev)
658 tlan_have_pci++;
659 else {
660 priv->nextDevice = TLan_Eisa_Devices;
661 TLan_Eisa_Devices = dev;
662 tlan_have_eisa++;
663 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400664
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n",
666 dev->name,
667 (int) dev->irq,
668 (int) dev->base_addr,
669 priv->adapter->deviceLabel,
670 priv->adapterRev);
671 return 0;
672
673err_out_uninit:
674 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage,
675 priv->dmaStorageDMA );
676err_out_free_dev:
677 free_netdev(dev);
678err_out_regions:
679#ifdef CONFIG_PCI
680 if (pdev)
681 pci_release_regions(pdev);
682#endif
683err_out:
684 if (pdev)
685 pci_disable_device(pdev);
686 return rc;
687}
688
689
690static void TLan_Eisa_Cleanup(void)
691{
692 struct net_device *dev;
693 TLanPrivateInfo *priv;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400694
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 while( tlan_have_eisa ) {
696 dev = TLan_Eisa_Devices;
697 priv = netdev_priv(dev);
698 if (priv->dmaStorage) {
699 pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA );
700 }
701 release_region( dev->base_addr, 0x10);
702 unregister_netdev( dev );
703 TLan_Eisa_Devices = priv->nextDevice;
704 free_netdev( dev );
705 tlan_have_eisa--;
706 }
707}
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400708
709
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710static void __exit tlan_exit(void)
711{
712 pci_unregister_driver(&tlan_driver);
713
714 if (tlan_have_eisa)
715 TLan_Eisa_Cleanup();
716
717 pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA);
718
719}
720
721
722/* Module loading/unloading */
723module_init(tlan_probe);
724module_exit(tlan_exit);
725
726
727
728 /**************************************************************
729 * TLan_EisaProbe
730 *
731 * Returns: 0 on success, 1 otherwise
732 *
733 * Parms: None
734 *
735 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400736 * This functions probes for EISA devices and calls
737 * TLan_probe1 when one is found.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 *
739 *************************************************************/
740
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400741static void __init TLan_EisaProbe (void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742{
743 long ioaddr;
744 int rc = -ENODEV;
745 int irq;
746 u16 device_id;
747
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400748 if (!EISA_bus) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
750 return;
751 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400752
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 /* Loop through all slots of the EISA bus */
754 for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400755
756 TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757 TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2));
758
759
760 TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ",
761 (int) ioaddr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400762 if (request_region(ioaddr, 0x10, TLanSignature) == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 goto out;
764
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400765 if (inw(ioaddr + EISA_ID) != 0x110E) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766 release_region(ioaddr, 0x10);
767 goto out;
768 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400769
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 device_id = inw(ioaddr + EISA_ID2);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400771 if (device_id != 0x20F1 && device_id != 0x40F1) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 release_region (ioaddr, 0x10);
773 goto out;
774 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */
777 release_region (ioaddr, 0x10);
778 goto out2;
779 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400780
781 if (debug == 0x10)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782 printk("Found one\n");
783
784
785 /* Get irq from board */
786 switch (inb(ioaddr + 0xCC0)) {
787 case(0x10):
788 irq=5;
789 break;
790 case(0x20):
791 irq=9;
792 break;
793 case(0x40):
794 irq=10;
795 break;
796 case(0x80):
797 irq=11;
798 break;
799 default:
800 goto out;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400801 }
802
803
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 /* Setup the newly found eisa adapter */
805 rc = TLan_probe1( NULL, ioaddr, irq,
806 12, NULL);
807 continue;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400808
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809 out:
810 if (debug == 0x10)
811 printk("None found\n");
812 continue;
813
814 out2: if (debug == 0x10)
815 printk("Card found but it is not enabled, skipping\n");
816 continue;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400817
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 }
819
820} /* TLan_EisaProbe */
821
822#ifdef CONFIG_NET_POLL_CONTROLLER
823static void TLan_Poll(struct net_device *dev)
824{
825 disable_irq(dev->irq);
David Howells7d12e782006-10-05 14:55:46 +0100826 TLan_HandleInterrupt(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 enable_irq(dev->irq);
828}
829#endif
830
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400831
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832
833
834 /***************************************************************
835 * TLan_Init
836 *
837 * Returns:
838 * 0 on success, error code otherwise.
839 * Parms:
840 * dev The structure of the device to be
841 * init'ed.
842 *
843 * This function completes the initialization of the
844 * device structure and driver. It reserves the IO
845 * addresses, allocates memory for the lists and bounce
846 * buffers, retrieves the MAC address from the eeprom
847 * and assignes the device's methods.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400848 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 **************************************************************/
850
851static int TLan_Init( struct net_device *dev )
852{
853 int dma_size;
854 int err;
855 int i;
856 TLanPrivateInfo *priv;
857
858 priv = netdev_priv(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860 if ( bbuf ) {
861 dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
862 * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE );
863 } else {
864 dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS )
865 * ( sizeof(TLanList) );
866 }
867 priv->dmaStorage = pci_alloc_consistent(priv->pciDev, dma_size, &priv->dmaStorageDMA);
868 priv->dmaSize = dma_size;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400869
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 if ( priv->dmaStorage == NULL ) {
871 printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n",
872 dev->name );
873 return -ENOMEM;
874 }
875 memset( priv->dmaStorage, 0, dma_size );
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400876 priv->rxList = (TLanList *)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 ( ( ( (u32) priv->dmaStorage ) + 7 ) & 0xFFFFFFF8 );
878 priv->rxListDMA = ( ( ( (u32) priv->dmaStorageDMA ) + 7 ) & 0xFFFFFFF8 );
879 priv->txList = priv->rxList + TLAN_NUM_RX_LISTS;
880 priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS;
881 if ( bbuf ) {
882 priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS );
883 priv->rxBufferDMA =priv->txListDMA + sizeof(TLanList) * TLAN_NUM_TX_LISTS;
884 priv->txBuffer = priv->rxBuffer + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
885 priv->txBufferDMA = priv->rxBufferDMA + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE );
886 }
887
888 err = 0;
889 for ( i = 0; i < 6 ; i++ )
890 err |= TLan_EeReadByte( dev,
891 (u8) priv->adapter->addrOfs + i,
892 (u8 *) &dev->dev_addr[i] );
893 if ( err ) {
894 printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n",
895 dev->name,
896 err );
897 }
898 dev->addr_len = 6;
899
900 netif_carrier_off(dev);
901
902 /* Device methods */
903 dev->open = &TLan_Open;
904 dev->hard_start_xmit = &TLan_StartTx;
905 dev->stop = &TLan_Close;
906 dev->get_stats = &TLan_GetStats;
907 dev->set_multicast_list = &TLan_SetMulticastList;
908 dev->do_ioctl = &TLan_ioctl;
909#ifdef CONFIG_NET_POLL_CONTROLLER
910 dev->poll_controller = &TLan_Poll;
911#endif
912 dev->tx_timeout = &TLan_tx_timeout;
913 dev->watchdog_timeo = TX_TIMEOUT;
914
915 return 0;
916
917} /* TLan_Init */
918
919
920
921
922 /***************************************************************
923 * TLan_Open
924 *
925 * Returns:
926 * 0 on success, error code otherwise.
927 * Parms:
928 * dev Structure of device to be opened.
929 *
930 * This routine puts the driver and TLAN adapter in a
931 * state where it is ready to send and receive packets.
932 * It allocates the IRQ, resets and brings the adapter
933 * out of reset, and allows interrupts. It also delays
934 * the startup for autonegotiation or sends a Rx GO
935 * command to the adapter, as appropriate.
936 *
937 **************************************************************/
938
939static int TLan_Open( struct net_device *dev )
940{
941 TLanPrivateInfo *priv = netdev_priv(dev);
942 int err;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400943
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION );
Thomas Gleixner1fb9df52006-07-01 19:29:39 -0700945 err = request_irq( dev->irq, TLan_HandleInterrupt, IRQF_SHARED, TLanSignature, dev );
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400946
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 if ( err ) {
948 printk(KERN_ERR "TLAN: Cannot open %s because IRQ %d is already in use.\n", dev->name, dev->irq );
949 return err;
950 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400951
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952 init_timer(&priv->timer);
953 netif_start_queue(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400954
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 /* NOTE: It might not be necessary to read the stats before a
956 reset if you don't care what the values are.
957 */
958 TLan_ResetLists( dev );
959 TLan_ReadAndClearStats( dev, TLAN_IGNORE );
960 TLan_ResetAdapter( dev );
961
962 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", dev->name, priv->tlanRev );
963
964 return 0;
965
966} /* TLan_Open */
967
968
969
970 /**************************************************************
971 * TLan_ioctl
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400972 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973 * Returns:
974 * 0 on success, error code otherwise
975 * Params:
976 * dev structure of device to receive ioctl.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400977 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978 * rq ifreq structure to hold userspace data.
979 *
980 * cmd ioctl command.
981 *
982 *
983 *************************************************************/
984
985static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
986{
987 TLanPrivateInfo *priv = netdev_priv(dev);
988 struct mii_ioctl_data *data = if_mii(rq);
989 u32 phy = priv->phy[priv->phyNum];
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400990
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991 if (!priv->phyOnline)
992 return -EAGAIN;
993
994 switch(cmd) {
995 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
996 data->phy_id = phy;
997
998
999 case SIOCGMIIREG: /* Read MII PHY register. */
1000 TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out);
1001 return 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003
1004 case SIOCSMIIREG: /* Write MII PHY register. */
1005 if (!capable(CAP_NET_ADMIN))
1006 return -EPERM;
1007 TLan_MiiWriteReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
1008 return 0;
1009 default:
1010 return -EOPNOTSUPP;
1011 }
1012} /* tlan_ioctl */
1013
1014
1015 /***************************************************************
1016 * TLan_tx_timeout
1017 *
1018 * Returns: nothing
1019 *
1020 * Params:
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001021 * dev structure of device which timed out
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 * during transmit.
1023 *
1024 **************************************************************/
1025
1026static void TLan_tx_timeout(struct net_device *dev)
1027{
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001028
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031 /* Ok so we timed out, lets see what we can do about it...*/
1032 TLan_FreeLists( dev );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001033 TLan_ResetLists( dev );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 TLan_ReadAndClearStats( dev, TLAN_IGNORE );
1035 TLan_ResetAdapter( dev );
1036 dev->trans_start = jiffies;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001037 netif_wake_queue( dev );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
1039}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
David Howellsc4028952006-11-22 14:57:56 +00001042 /***************************************************************
1043 * TLan_tx_timeout_work
1044 *
1045 * Returns: nothing
1046 *
1047 * Params:
1048 * work work item of device which timed out
1049 *
1050 **************************************************************/
1051
1052static void TLan_tx_timeout_work(struct work_struct *work)
1053{
1054 TLanPrivateInfo *priv =
1055 container_of(work, TLanPrivateInfo, tlan_tqueue);
1056
1057 TLan_tx_timeout(priv->dev);
1058}
1059
1060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
1062 /***************************************************************
1063 * TLan_StartTx
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001064 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 * Returns:
1066 * 0 on success, non-zero on failure.
1067 * Parms:
1068 * skb A pointer to the sk_buff containing the
1069 * frame to be sent.
1070 * dev The device to send the data on.
1071 *
1072 * This function adds a frame to the Tx list to be sent
1073 * ASAP. First it verifies that the adapter is ready and
1074 * there is room in the queue. Then it sets up the next
1075 * available list, copies the frame to the corresponding
1076 * buffer. If the adapter Tx channel is idle, it gives
1077 * the adapter a Tx Go command on the list, otherwise it
1078 * sets the forward address of the previous list to point
1079 * to this one. Then it frees the sk_buff.
1080 *
1081 **************************************************************/
1082
1083static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev )
1084{
1085 TLanPrivateInfo *priv = netdev_priv(dev);
1086 TLanList *tail_list;
1087 dma_addr_t tail_list_phys;
1088 u8 *tail_buffer;
1089 int pad;
1090 unsigned long flags;
1091
1092 if ( ! priv->phyOnline ) {
1093 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", dev->name );
1094 dev_kfree_skb_any(skb);
1095 return 0;
1096 }
1097
1098 tail_list = priv->txList + priv->txTail;
1099 tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001100
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101 if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) {
1102 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", dev->name, priv->txHead, priv->txTail );
1103 netif_stop_queue(dev);
1104 priv->txBusyCount++;
1105 return 1;
1106 }
1107
1108 tail_list->forward = 0;
1109
1110 if ( bbuf ) {
1111 tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE );
Arnaldo Carvalho de Melod626f622007-03-27 18:55:52 -03001112 skb_copy_from_linear_data(skb, tail_buffer, skb->len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113 } else {
1114 tail_list->buffer[0].address = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE);
1115 TLan_StoreSKB(tail_list, skb);
1116 }
1117
1118 pad = TLAN_MIN_FRAME_SIZE - skb->len;
1119
1120 if ( pad > 0 ) {
1121 tail_list->frameSize = (u16) skb->len + pad;
1122 tail_list->buffer[0].count = (u32) skb->len;
1123 tail_list->buffer[1].count = TLAN_LAST_BUFFER | (u32) pad;
1124 tail_list->buffer[1].address = TLanPadBufferDMA;
1125 } else {
1126 tail_list->frameSize = (u16) skb->len;
1127 tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len;
1128 tail_list->buffer[1].count = 0;
1129 tail_list->buffer[1].address = 0;
1130 }
1131
1132 spin_lock_irqsave(&priv->lock, flags);
1133 tail_list->cStat = TLAN_CSTAT_READY;
1134 if ( ! priv->txInProgress ) {
1135 priv->txInProgress = 1;
1136 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Starting TX on buffer %d\n", priv->txTail );
1137 outl( tail_list_phys, dev->base_addr + TLAN_CH_PARM );
1138 outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD );
1139 } else {
1140 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channel\n", priv->txTail );
1141 if ( priv->txTail == 0 ) {
1142 ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = tail_list_phys;
1143 } else {
1144 ( priv->txList + ( priv->txTail - 1 ) )->forward = tail_list_phys;
1145 }
1146 }
1147 spin_unlock_irqrestore(&priv->lock, flags);
1148
1149 CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS );
1150
1151 if ( bbuf )
1152 dev_kfree_skb_any(skb);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001153
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 dev->trans_start = jiffies;
1155 return 0;
1156
1157} /* TLan_StartTx */
1158
1159
1160
1161
1162 /***************************************************************
1163 * TLan_HandleInterrupt
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001164 *
1165 * Returns:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166 * Nothing
1167 * Parms:
1168 * irq The line on which the interrupt
1169 * occurred.
1170 * dev_id A pointer to the device assigned to
1171 * this irq line.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172 *
1173 * This function handles an interrupt generated by its
1174 * assigned TLAN adapter. The function deactivates
1175 * interrupts on its adapter, records the type of
1176 * interrupt, executes the appropriate subhandler, and
1177 * acknowdges the interrupt to the adapter (thus
1178 * re-enabling adapter interrupts.
1179 *
1180 **************************************************************/
1181
David Howells7d12e782006-10-05 14:55:46 +01001182static irqreturn_t TLan_HandleInterrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183{
1184 u32 ack;
1185 struct net_device *dev;
1186 u32 host_cmd;
1187 u16 host_int;
1188 int type;
1189 TLanPrivateInfo *priv;
1190
1191 dev = dev_id;
1192 priv = netdev_priv(dev);
1193
1194 spin_lock(&priv->lock);
1195
1196 host_int = inw( dev->base_addr + TLAN_HOST_INT );
1197 outw( host_int, dev->base_addr + TLAN_HOST_INT );
1198
1199 type = ( host_int & TLAN_HI_IT_MASK ) >> 2;
1200
1201 ack = TLanIntVector[type]( dev, host_int );
1202
1203 if ( ack ) {
1204 host_cmd = TLAN_HC_ACK | ack | ( type << 18 );
1205 outl( host_cmd, dev->base_addr + TLAN_HOST_CMD );
1206 }
1207
1208 spin_unlock(&priv->lock);
1209
1210 return IRQ_HANDLED;
1211} /* TLan_HandleInterrupts */
1212
1213
1214
1215
1216 /***************************************************************
1217 * TLan_Close
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001218 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 * Returns:
1220 * An error code.
1221 * Parms:
1222 * dev The device structure of the device to
1223 * close.
1224 *
1225 * This function shuts down the adapter. It records any
1226 * stats, puts the adapter into reset state, deactivates
1227 * its time as needed, and frees the irq it is using.
1228 *
1229 **************************************************************/
1230
1231static int TLan_Close(struct net_device *dev)
1232{
1233 TLanPrivateInfo *priv = netdev_priv(dev);
1234
1235 netif_stop_queue(dev);
1236 priv->neg_be_verbose = 0;
1237
1238 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1239 outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
1240 if ( priv->timer.function != NULL ) {
1241 del_timer_sync( &priv->timer );
1242 priv->timer.function = NULL;
1243 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001244
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 free_irq( dev->irq, dev );
1246 TLan_FreeLists( dev );
1247 TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name );
1248
1249 return 0;
1250
1251} /* TLan_Close */
1252
1253
1254
1255
1256 /***************************************************************
1257 * TLan_GetStats
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001258 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 * Returns:
1260 * A pointer to the device's statistics structure.
1261 * Parms:
1262 * dev The device structure to return the
1263 * stats for.
1264 *
1265 * This function updates the devices statistics by reading
1266 * the TLAN chip's onboard registers. Then it returns the
1267 * address of the statistics structure.
1268 *
1269 **************************************************************/
1270
1271static struct net_device_stats *TLan_GetStats( struct net_device *dev )
1272{
1273 TLanPrivateInfo *priv = netdev_priv(dev);
1274 int i;
1275
1276 /* Should only read stats if open ? */
1277 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1278
1279 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, priv->rxEocCount );
1280 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, priv->txBusyCount );
1281 if ( debug & TLAN_DEBUG_GNRL ) {
1282 TLan_PrintDio( dev->base_addr );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001283 TLan_PhyPrint( dev );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 }
1285 if ( debug & TLAN_DEBUG_LIST ) {
1286 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ )
1287 TLan_PrintList( priv->rxList + i, "RX", i );
1288 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ )
1289 TLan_PrintList( priv->txList + i, "TX", i );
1290 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001291
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 return ( &( (TLanPrivateInfo *) netdev_priv(dev) )->stats );
1293
1294} /* TLan_GetStats */
1295
1296
1297
1298
1299 /***************************************************************
1300 * TLan_SetMulticastList
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001301 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302 * Returns:
1303 * Nothing
1304 * Parms:
1305 * dev The device structure to set the
1306 * multicast list for.
1307 *
1308 * This function sets the TLAN adaptor to various receive
1309 * modes. If the IFF_PROMISC flag is set, promiscuous
1310 * mode is acitviated. Otherwise, promiscuous mode is
1311 * turned off. If the IFF_ALLMULTI flag is set, then
1312 * the hash table is set to receive all group addresses.
1313 * Otherwise, the first three multicast addresses are
1314 * stored in AREG_1-3, and the rest are selected via the
1315 * hash table, as necessary.
1316 *
1317 **************************************************************/
1318
1319static void TLan_SetMulticastList( struct net_device *dev )
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001320{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321 struct dev_mc_list *dmi = dev->mc_list;
1322 u32 hash1 = 0;
1323 u32 hash2 = 0;
1324 int i;
1325 u32 offset;
1326 u8 tmp;
1327
1328 if ( dev->flags & IFF_PROMISC ) {
1329 tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
1330 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF );
1331 } else {
1332 tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD );
1333 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF );
1334 if ( dev->flags & IFF_ALLMULTI ) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001335 for ( i = 0; i < 3; i++ )
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336 TLan_SetMac( dev, i + 1, NULL );
1337 TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF );
1338 TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF );
1339 } else {
1340 for ( i = 0; i < dev->mc_count; i++ ) {
1341 if ( i < 3 ) {
1342 TLan_SetMac( dev, i + 1, (char *) &dmi->dmi_addr );
1343 } else {
1344 offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001345 if ( offset < 32 )
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 hash1 |= ( 1 << offset );
1347 else
1348 hash2 |= ( 1 << ( offset - 32 ) );
1349 }
1350 dmi = dmi->next;
1351 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001352 for ( ; i < 3; i++ )
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353 TLan_SetMac( dev, i + 1, NULL );
1354 TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 );
1355 TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 );
1356 }
1357 }
1358
1359} /* TLan_SetMulticastList */
1360
1361
1362
1363/*****************************************************************************
1364******************************************************************************
1365
1366 ThunderLAN Driver Interrupt Vectors and Table
1367
1368 Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN
1369 Programmer's Guide" for more informations on handling interrupts
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001370 generated by TLAN based adapters.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371
1372******************************************************************************
1373*****************************************************************************/
1374
1375
1376 /***************************************************************
1377 * TLan_HandleInvalid
1378 *
1379 * Returns:
1380 * 0
1381 * Parms:
1382 * dev Device assigned the IRQ that was
1383 * raised.
1384 * host_int The contents of the HOST_INT
1385 * port.
1386 *
1387 * This function handles invalid interrupts. This should
1388 * never happen unless some other adapter is trying to use
1389 * the IRQ line assigned to the device.
1390 *
1391 **************************************************************/
1392
1393u32 TLan_HandleInvalid( struct net_device *dev, u16 host_int )
1394{
1395 /* printk( "TLAN: Invalid interrupt on %s.\n", dev->name ); */
1396 return 0;
1397
1398} /* TLan_HandleInvalid */
1399
1400
1401
1402
1403 /***************************************************************
1404 * TLan_HandleTxEOF
1405 *
1406 * Returns:
1407 * 1
1408 * Parms:
1409 * dev Device assigned the IRQ that was
1410 * raised.
1411 * host_int The contents of the HOST_INT
1412 * port.
1413 *
1414 * This function handles Tx EOF interrupts which are raised
1415 * by the adapter when it has completed sending the
1416 * contents of a buffer. If detemines which list/buffer
1417 * was completed and resets it. If the buffer was the last
1418 * in the channel (EOC), then the function checks to see if
1419 * another buffer is ready to send, and if so, sends a Tx
1420 * Go command. Finally, the driver activates/continues the
1421 * activity LED.
1422 *
1423 **************************************************************/
1424
1425u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int )
1426{
1427 TLanPrivateInfo *priv = netdev_priv(dev);
1428 int eoc = 0;
1429 TLanList *head_list;
1430 dma_addr_t head_list_phys;
1431 u32 ack = 0;
1432 u16 tmpCStat;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001433
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", priv->txHead, priv->txTail );
1435 head_list = priv->txList + priv->txHead;
1436
1437 while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
1438 ack++;
1439 if ( ! bbuf ) {
1440 struct sk_buff *skb = TLan_GetSKB(head_list);
1441 pci_unmap_single(priv->pciDev, head_list->buffer[0].address, skb->len, PCI_DMA_TODEVICE);
1442 dev_kfree_skb_any(skb);
1443 head_list->buffer[8].address = 0;
1444 head_list->buffer[9].address = 0;
1445 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001446
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447 if ( tmpCStat & TLAN_CSTAT_EOC )
1448 eoc = 1;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001449
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450 priv->stats.tx_bytes += head_list->frameSize;
1451
1452 head_list->cStat = TLAN_CSTAT_UNUSED;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001453 netif_start_queue(dev);
1454 CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455 head_list = priv->txList + priv->txHead;
1456 }
1457
1458 if (!ack)
1459 printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n");
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001460
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 if ( eoc ) {
1462 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n", priv->txHead, priv->txTail );
1463 head_list = priv->txList + priv->txHead;
1464 head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
1465 if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
1466 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
1467 ack |= TLAN_HC_GO;
1468 } else {
1469 priv->txInProgress = 0;
1470 }
1471 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001472
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473 if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
1474 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
1475 if ( priv->timer.function == NULL ) {
1476 priv->timer.function = &TLan_Timer;
1477 priv->timer.data = (unsigned long) dev;
1478 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1479 priv->timerSetAt = jiffies;
1480 priv->timerType = TLAN_TIMER_ACTIVITY;
1481 add_timer(&priv->timer);
1482 } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
1483 priv->timerSetAt = jiffies;
1484 }
1485 }
1486
1487 return ack;
1488
1489} /* TLan_HandleTxEOF */
1490
1491
1492
1493
1494 /***************************************************************
1495 * TLan_HandleStatOverflow
1496 *
1497 * Returns:
1498 * 1
1499 * Parms:
1500 * dev Device assigned the IRQ that was
1501 * raised.
1502 * host_int The contents of the HOST_INT
1503 * port.
1504 *
1505 * This function handles the Statistics Overflow interrupt
1506 * which means that one or more of the TLAN statistics
1507 * registers has reached 1/2 capacity and needs to be read.
1508 *
1509 **************************************************************/
1510
1511u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int )
1512{
1513 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1514
1515 return 1;
1516
1517} /* TLan_HandleStatOverflow */
1518
1519
1520
1521
1522 /***************************************************************
1523 * TLan_HandleRxEOF
1524 *
1525 * Returns:
1526 * 1
1527 * Parms:
1528 * dev Device assigned the IRQ that was
1529 * raised.
1530 * host_int The contents of the HOST_INT
1531 * port.
1532 *
1533 * This function handles the Rx EOF interrupt which
1534 * indicates a frame has been received by the adapter from
1535 * the net and the frame has been transferred to memory.
1536 * The function determines the bounce buffer the frame has
1537 * been loaded into, creates a new sk_buff big enough to
1538 * hold the frame, and sends it to protocol stack. It
1539 * then resets the used buffer and appends it to the end
1540 * of the list. If the frame was the last in the Rx
1541 * channel (EOC), the function restarts the receive channel
1542 * by sending an Rx Go command to the adapter. Then it
1543 * activates/continues the activity LED.
1544 *
1545 **************************************************************/
1546
1547u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int )
1548{
1549 TLanPrivateInfo *priv = netdev_priv(dev);
1550 u32 ack = 0;
1551 int eoc = 0;
1552 u8 *head_buffer;
1553 TLanList *head_list;
1554 struct sk_buff *skb;
1555 TLanList *tail_list;
1556 void *t;
1557 u32 frameSize;
1558 u16 tmpCStat;
1559 dma_addr_t head_list_phys;
1560
1561 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail );
1562 head_list = priv->rxList + priv->rxHead;
1563 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001564
Linus Torvalds1da177e2005-04-16 15:20:36 -07001565 while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) {
1566 frameSize = head_list->frameSize;
1567 ack++;
1568 if (tmpCStat & TLAN_CSTAT_EOC)
1569 eoc = 1;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001570
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571 if (bbuf) {
1572 skb = dev_alloc_skb(frameSize + 7);
1573 if (skb == NULL)
1574 printk(KERN_INFO "TLAN: Couldn't allocate memory for received data.\n");
1575 else {
1576 head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577 skb_reserve(skb, 2);
1578 t = (void *) skb_put(skb, frameSize);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001579
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580 priv->stats.rx_bytes += head_list->frameSize;
1581
1582 memcpy( t, head_buffer, frameSize );
1583 skb->protocol = eth_type_trans( skb, dev );
1584 netif_rx( skb );
1585 }
1586 } else {
1587 struct sk_buff *new_skb;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001588
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589 /*
1590 * I changed the algorithm here. What we now do
1591 * is allocate the new frame. If this fails we
1592 * simply recycle the frame.
1593 */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001594
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595 new_skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001596
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 if ( new_skb != NULL ) {
1598 skb = TLan_GetSKB(head_list);
1599 pci_unmap_single(priv->pciDev, head_list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
1600 skb_trim( skb, frameSize );
1601
1602 priv->stats.rx_bytes += frameSize;
1603
1604 skb->protocol = eth_type_trans( skb, dev );
1605 netif_rx( skb );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001606
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 skb_reserve( new_skb, 2 );
1608 t = (void *) skb_put( new_skb, TLAN_MAX_FRAME_SIZE );
1609 head_list->buffer[0].address = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
1610 head_list->buffer[8].address = (u32) t;
1611 TLan_StoreSKB(head_list, new_skb);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001612 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613 printk(KERN_WARNING "TLAN: Couldn't allocate memory for received data.\n" );
1614 }
1615
1616 head_list->forward = 0;
1617 head_list->cStat = 0;
1618 tail_list = priv->rxList + priv->rxTail;
1619 tail_list->forward = head_list_phys;
1620
1621 CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS );
1622 CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS );
1623 head_list = priv->rxList + priv->rxHead;
1624 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1625 }
1626
1627 if (!ack)
1628 printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001629
1630
1631
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001632
1633 if ( eoc ) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail );
1635 head_list = priv->rxList + priv->rxHead;
1636 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1637 outl(head_list_phys, dev->base_addr + TLAN_CH_PARM );
1638 ack |= TLAN_HC_GO | TLAN_HC_RT;
1639 priv->rxEocCount++;
1640 }
1641
1642 if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) {
1643 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT );
1644 if ( priv->timer.function == NULL ) {
1645 priv->timer.function = &TLan_Timer;
1646 priv->timer.data = (unsigned long) dev;
1647 priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
1648 priv->timerSetAt = jiffies;
1649 priv->timerType = TLAN_TIMER_ACTIVITY;
1650 add_timer(&priv->timer);
1651 } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) {
1652 priv->timerSetAt = jiffies;
1653 }
1654 }
1655
1656 dev->last_rx = jiffies;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001657
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658 return ack;
1659
1660} /* TLan_HandleRxEOF */
1661
1662
1663
1664
1665 /***************************************************************
1666 * TLan_HandleDummy
1667 *
1668 * Returns:
1669 * 1
1670 * Parms:
1671 * dev Device assigned the IRQ that was
1672 * raised.
1673 * host_int The contents of the HOST_INT
1674 * port.
1675 *
1676 * This function handles the Dummy interrupt, which is
1677 * raised whenever a test interrupt is generated by setting
1678 * the Req_Int bit of HOST_CMD to 1.
1679 *
1680 **************************************************************/
1681
1682u32 TLan_HandleDummy( struct net_device *dev, u16 host_int )
1683{
1684 printk( "TLAN: Test interrupt on %s.\n", dev->name );
1685 return 1;
1686
1687} /* TLan_HandleDummy */
1688
1689
1690
1691
1692 /***************************************************************
1693 * TLan_HandleTxEOC
1694 *
1695 * Returns:
1696 * 1
1697 * Parms:
1698 * dev Device assigned the IRQ that was
1699 * raised.
1700 * host_int The contents of the HOST_INT
1701 * port.
1702 *
1703 * This driver is structured to determine EOC occurrences by
1704 * reading the CSTAT member of the list structure. Tx EOC
1705 * interrupts are disabled via the DIO INTDIS register.
1706 * However, TLAN chips before revision 3.0 didn't have this
1707 * functionality, so process EOC events if this is the
1708 * case.
1709 *
1710 **************************************************************/
1711
1712u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int )
1713{
1714 TLanPrivateInfo *priv = netdev_priv(dev);
1715 TLanList *head_list;
1716 dma_addr_t head_list_phys;
1717 u32 ack = 1;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001718
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 host_int = 0;
1720 if ( priv->tlanRev < 0x30 ) {
1721 TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", priv->txHead, priv->txTail );
1722 head_list = priv->txList + priv->txHead;
1723 head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead;
1724 if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) {
1725 netif_stop_queue(dev);
1726 outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
1727 ack |= TLAN_HC_GO;
1728 } else {
1729 priv->txInProgress = 0;
1730 }
1731 }
1732
1733 return ack;
1734
1735} /* TLan_HandleTxEOC */
1736
1737
1738
1739
1740 /***************************************************************
1741 * TLan_HandleStatusCheck
1742 *
1743 * Returns:
1744 * 0 if Adapter check, 1 if Network Status check.
1745 * Parms:
1746 * dev Device assigned the IRQ that was
1747 * raised.
1748 * host_int The contents of the HOST_INT
1749 * port.
1750 *
1751 * This function handles Adapter Check/Network Status
1752 * interrupts generated by the adapter. It checks the
1753 * vector in the HOST_INT register to determine if it is
1754 * an Adapter Check interrupt. If so, it resets the
1755 * adapter. Otherwise it clears the status registers
1756 * and services the PHY.
1757 *
1758 **************************************************************/
1759
1760u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int )
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001761{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762 TLanPrivateInfo *priv = netdev_priv(dev);
1763 u32 ack;
1764 u32 error;
1765 u8 net_sts;
1766 u32 phy;
1767 u16 tlphy_ctl;
1768 u16 tlphy_sts;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001769
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 ack = 1;
1771 if ( host_int & TLAN_HI_IV_MASK ) {
1772 netif_stop_queue( dev );
1773 error = inl( dev->base_addr + TLAN_CH_PARM );
1774 printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error );
1775 TLan_ReadAndClearStats( dev, TLAN_RECORD );
1776 outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD );
1777
1778 schedule_work(&priv->tlan_tqueue);
1779
1780 netif_wake_queue(dev);
1781 ack = 0;
1782 } else {
1783 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name );
1784 phy = priv->phy[priv->phyNum];
1785
1786 net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS );
1787 if ( net_sts ) {
1788 TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts );
1789 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n", dev->name, (unsigned) net_sts );
1790 }
1791 if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) {
1792 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts );
1793 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
1794 if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && ! ( 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 ) && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) {
1798 tlphy_ctl &= ~TLAN_TC_SWAPOL;
1799 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl);
1800 }
1801
1802 if (debug) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001803 TLan_PhyPrint( dev );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804 }
1805 }
1806 }
1807
1808 return ack;
1809
1810} /* TLan_HandleStatusCheck */
1811
1812
1813
1814
1815 /***************************************************************
1816 * TLan_HandleRxEOC
1817 *
1818 * Returns:
1819 * 1
1820 * Parms:
1821 * dev Device assigned the IRQ that was
1822 * raised.
1823 * host_int The contents of the HOST_INT
1824 * port.
1825 *
1826 * This driver is structured to determine EOC occurrences by
1827 * reading the CSTAT member of the list structure. Rx EOC
1828 * interrupts are disabled via the DIO INTDIS register.
1829 * However, TLAN chips before revision 3.0 didn't have this
1830 * CSTAT member or a INTDIS register, so if this chip is
1831 * pre-3.0, process EOC interrupts normally.
1832 *
1833 **************************************************************/
1834
1835u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int )
1836{
1837 TLanPrivateInfo *priv = netdev_priv(dev);
1838 dma_addr_t head_list_phys;
1839 u32 ack = 1;
1840
1841 if ( priv->tlanRev < 0x30 ) {
1842 TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", priv->rxHead, priv->rxTail );
1843 head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead;
1844 outl( head_list_phys, dev->base_addr + TLAN_CH_PARM );
1845 ack |= TLAN_HC_GO | TLAN_HC_RT;
1846 priv->rxEocCount++;
1847 }
1848
1849 return ack;
1850
1851} /* TLan_HandleRxEOC */
1852
1853
1854
1855
1856/*****************************************************************************
1857******************************************************************************
1858
1859 ThunderLAN Driver Timer Function
1860
1861******************************************************************************
1862*****************************************************************************/
1863
1864
1865 /***************************************************************
1866 * TLan_Timer
1867 *
1868 * Returns:
1869 * Nothing
1870 * Parms:
1871 * data A value given to add timer when
1872 * add_timer was called.
1873 *
1874 * This function handles timed functionality for the
1875 * TLAN driver. The two current timer uses are for
1876 * delaying for autonegotionation and driving the ACT LED.
1877 * - Autonegotiation requires being allowed about
1878 * 2 1/2 seconds before attempting to transmit a
1879 * packet. It would be a very bad thing to hang
1880 * the kernel this long, so the driver doesn't
1881 * allow transmission 'til after this time, for
1882 * certain PHYs. It would be much nicer if all
1883 * PHYs were interrupt-capable like the internal
1884 * PHY.
1885 * - The ACT LED, which shows adapter activity, is
1886 * driven by the driver, and so must be left on
1887 * for a short period to power up the LED so it
1888 * can be seen. This delay can be changed by
1889 * changing the TLAN_TIMER_ACT_DELAY in tlan.h,
1890 * if desired. 100 ms produces a slightly
1891 * sluggish response.
1892 *
1893 **************************************************************/
1894
1895void TLan_Timer( unsigned long data )
1896{
1897 struct net_device *dev = (struct net_device *) data;
1898 TLanPrivateInfo *priv = netdev_priv(dev);
1899 u32 elapsed;
1900 unsigned long flags = 0;
1901
1902 priv->timer.function = NULL;
1903
1904 switch ( priv->timerType ) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001905#ifdef MONITOR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906 case TLAN_TIMER_LINK_BEAT:
1907 TLan_PhyMonitor( dev );
1908 break;
1909#endif
1910 case TLAN_TIMER_PHY_PDOWN:
1911 TLan_PhyPowerDown( dev );
1912 break;
1913 case TLAN_TIMER_PHY_PUP:
1914 TLan_PhyPowerUp( dev );
1915 break;
1916 case TLAN_TIMER_PHY_RESET:
1917 TLan_PhyReset( dev );
1918 break;
1919 case TLAN_TIMER_PHY_START_LINK:
1920 TLan_PhyStartLink( dev );
1921 break;
1922 case TLAN_TIMER_PHY_FINISH_AN:
1923 TLan_PhyFinishAutoNeg( dev );
1924 break;
1925 case TLAN_TIMER_FINISH_RESET:
1926 TLan_FinishReset( dev );
1927 break;
1928 case TLAN_TIMER_ACTIVITY:
1929 spin_lock_irqsave(&priv->lock, flags);
1930 if ( priv->timer.function == NULL ) {
1931 elapsed = jiffies - priv->timerSetAt;
1932 if ( elapsed >= TLAN_TIMER_ACT_DELAY ) {
1933 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
1934 } else {
1935 priv->timer.function = &TLan_Timer;
1936 priv->timer.expires = priv->timerSetAt + TLAN_TIMER_ACT_DELAY;
1937 spin_unlock_irqrestore(&priv->lock, flags);
1938 add_timer( &priv->timer );
1939 break;
1940 }
1941 }
1942 spin_unlock_irqrestore(&priv->lock, flags);
1943 break;
1944 default:
1945 break;
1946 }
1947
1948} /* TLan_Timer */
1949
1950
1951
1952
1953/*****************************************************************************
1954******************************************************************************
1955
1956 ThunderLAN Driver Adapter Related Routines
1957
1958******************************************************************************
1959*****************************************************************************/
1960
1961
1962 /***************************************************************
1963 * TLan_ResetLists
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001964 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965 * Returns:
1966 * Nothing
1967 * Parms:
1968 * dev The device structure with the list
1969 * stuctures to be reset.
1970 *
1971 * This routine sets the variables associated with managing
1972 * the TLAN lists to their initial values.
1973 *
1974 **************************************************************/
1975
1976void TLan_ResetLists( struct net_device *dev )
1977{
1978 TLanPrivateInfo *priv = netdev_priv(dev);
1979 int i;
1980 TLanList *list;
1981 dma_addr_t list_phys;
1982 struct sk_buff *skb;
1983 void *t = NULL;
1984
1985 priv->txHead = 0;
1986 priv->txTail = 0;
1987 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
1988 list = priv->txList + i;
1989 list->cStat = TLAN_CSTAT_UNUSED;
1990 if ( bbuf ) {
1991 list->buffer[0].address = priv->txBufferDMA + ( i * TLAN_MAX_FRAME_SIZE );
1992 } else {
1993 list->buffer[0].address = 0;
1994 }
1995 list->buffer[2].count = 0;
1996 list->buffer[2].address = 0;
1997 list->buffer[8].address = 0;
1998 list->buffer[9].address = 0;
1999 }
2000
2001 priv->rxHead = 0;
2002 priv->rxTail = TLAN_NUM_RX_LISTS - 1;
2003 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
2004 list = priv->rxList + i;
2005 list_phys = priv->rxListDMA + sizeof(TLanList) * i;
2006 list->cStat = TLAN_CSTAT_READY;
2007 list->frameSize = TLAN_MAX_FRAME_SIZE;
2008 list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER;
2009 if ( bbuf ) {
2010 list->buffer[0].address = priv->rxBufferDMA + ( i * TLAN_MAX_FRAME_SIZE );
2011 } else {
2012 skb = dev_alloc_skb( TLAN_MAX_FRAME_SIZE + 7 );
2013 if ( skb == NULL ) {
2014 printk( "TLAN: Couldn't allocate memory for received data.\n" );
2015 /* If this ever happened it would be a problem */
2016 } else {
2017 skb->dev = dev;
2018 skb_reserve( skb, 2 );
2019 t = (void *) skb_put( skb, TLAN_MAX_FRAME_SIZE );
2020 }
2021 list->buffer[0].address = pci_map_single(priv->pciDev, t, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
2022 list->buffer[8].address = (u32) t;
2023 TLan_StoreSKB(list, skb);
2024 }
2025 list->buffer[1].count = 0;
2026 list->buffer[1].address = 0;
2027 if ( i < TLAN_NUM_RX_LISTS - 1 )
2028 list->forward = list_phys + sizeof(TLanList);
2029 else
2030 list->forward = 0;
2031 }
2032
2033} /* TLan_ResetLists */
2034
2035
2036void TLan_FreeLists( struct net_device *dev )
2037{
2038 TLanPrivateInfo *priv = netdev_priv(dev);
2039 int i;
2040 TLanList *list;
2041 struct sk_buff *skb;
2042
2043 if ( ! bbuf ) {
2044 for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) {
2045 list = priv->txList + i;
2046 skb = TLan_GetSKB(list);
2047 if ( skb ) {
2048 pci_unmap_single(priv->pciDev, list->buffer[0].address, skb->len, PCI_DMA_TODEVICE);
2049 dev_kfree_skb_any( skb );
2050 list->buffer[8].address = 0;
2051 list->buffer[9].address = 0;
2052 }
2053 }
2054
2055 for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) {
2056 list = priv->rxList + i;
2057 skb = TLan_GetSKB(list);
2058 if ( skb ) {
2059 pci_unmap_single(priv->pciDev, list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
2060 dev_kfree_skb_any( skb );
2061 list->buffer[8].address = 0;
2062 list->buffer[9].address = 0;
2063 }
2064 }
2065 }
2066} /* TLan_FreeLists */
2067
2068
2069
2070
2071 /***************************************************************
2072 * TLan_PrintDio
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002073 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074 * Returns:
2075 * Nothing
2076 * Parms:
2077 * io_base Base IO port of the device of
2078 * which to print DIO registers.
2079 *
2080 * This function prints out all the internal (DIO)
2081 * registers of a TLAN chip.
2082 *
2083 **************************************************************/
2084
2085void TLan_PrintDio( u16 io_base )
2086{
2087 u32 data0, data1;
2088 int i;
2089
2090 printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n", io_base );
2091 printk( "TLAN: Off. +0 +4\n" );
2092 for ( i = 0; i < 0x4C; i+= 8 ) {
2093 data0 = TLan_DioRead32( io_base, i );
2094 data1 = TLan_DioRead32( io_base, i + 0x4 );
2095 printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 );
2096 }
2097
2098} /* TLan_PrintDio */
2099
2100
2101
2102
2103 /***************************************************************
2104 * TLan_PrintList
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002105 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106 * Returns:
2107 * Nothing
2108 * Parms:
2109 * list A pointer to the TLanList structure to
2110 * be printed.
2111 * type A string to designate type of list,
2112 * "Rx" or "Tx".
2113 * num The index of the list.
2114 *
2115 * This function prints out the contents of the list
2116 * pointed to by the list parameter.
2117 *
2118 **************************************************************/
2119
2120void TLan_PrintList( TLanList *list, char *type, int num)
2121{
2122 int i;
2123
2124 printk( "TLAN: %s List %d at 0x%08x\n", type, num, (u32) list );
2125 printk( "TLAN: Forward = 0x%08x\n", list->forward );
2126 printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat );
2127 printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize );
2128 /* for ( i = 0; i < 10; i++ ) { */
2129 for ( i = 0; i < 2; i++ ) {
2130 printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", i, list->buffer[i].count, list->buffer[i].address );
2131 }
2132
2133} /* TLan_PrintList */
2134
2135
2136
2137
2138 /***************************************************************
2139 * TLan_ReadAndClearStats
2140 *
2141 * Returns:
2142 * Nothing
2143 * Parms:
2144 * dev Pointer to device structure of adapter
2145 * to which to read stats.
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002146 * record Flag indicating whether to add
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147 *
2148 * This functions reads all the internal status registers
2149 * of the TLAN chip, which clears them as a side effect.
2150 * It then either adds the values to the device's status
2151 * struct, or discards them, depending on whether record
2152 * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0).
2153 *
2154 **************************************************************/
2155
2156void TLan_ReadAndClearStats( struct net_device *dev, int record )
2157{
2158 TLanPrivateInfo *priv = netdev_priv(dev);
2159 u32 tx_good, tx_under;
2160 u32 rx_good, rx_over;
2161 u32 def_tx, crc, code;
2162 u32 multi_col, single_col;
2163 u32 excess_col, late_col, loss;
2164
2165 outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR );
2166 tx_good = inb( dev->base_addr + TLAN_DIO_DATA );
2167 tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2168 tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
2169 tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
2170
2171 outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR );
2172 rx_good = inb( dev->base_addr + TLAN_DIO_DATA );
2173 rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2174 rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16;
2175 rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002176
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177 outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR );
2178 def_tx = inb( dev->base_addr + TLAN_DIO_DATA );
2179 def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2180 crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2181 code = inb( dev->base_addr + TLAN_DIO_DATA + 3 );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002182
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
2184 multi_col = inb( dev->base_addr + TLAN_DIO_DATA );
2185 multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8;
2186 single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2187 single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8;
2188
2189 outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR );
2190 excess_col = inb( dev->base_addr + TLAN_DIO_DATA );
2191 late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 );
2192 loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 );
2193
2194 if ( record ) {
2195 priv->stats.rx_packets += rx_good;
2196 priv->stats.rx_errors += rx_over + crc + code;
2197 priv->stats.tx_packets += tx_good;
2198 priv->stats.tx_errors += tx_under + loss;
2199 priv->stats.collisions += multi_col + single_col + excess_col + late_col;
2200
2201 priv->stats.rx_over_errors += rx_over;
2202 priv->stats.rx_crc_errors += crc;
2203 priv->stats.rx_frame_errors += code;
2204
2205 priv->stats.tx_aborted_errors += tx_under;
2206 priv->stats.tx_carrier_errors += loss;
2207 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002208
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209} /* TLan_ReadAndClearStats */
2210
2211
2212
2213
2214 /***************************************************************
2215 * TLan_Reset
2216 *
2217 * Returns:
2218 * 0
2219 * Parms:
2220 * dev Pointer to device structure of adapter
2221 * to be reset.
2222 *
2223 * This function resets the adapter and it's physical
2224 * device. See Chap. 3, pp. 9-10 of the "ThunderLAN
2225 * Programmer's Guide" for details. The routine tries to
2226 * implement what is detailed there, though adjustments
2227 * have been made.
2228 *
2229 **************************************************************/
2230
2231void
2232TLan_ResetAdapter( struct net_device *dev )
2233{
2234 TLanPrivateInfo *priv = netdev_priv(dev);
2235 int i;
2236 u32 addr;
2237 u32 data;
2238 u8 data8;
2239
2240 priv->tlanFullDuplex = FALSE;
2241 priv->phyOnline=0;
2242 netif_carrier_off(dev);
2243
2244/* 1. Assert reset bit. */
2245
2246 data = inl(dev->base_addr + TLAN_HOST_CMD);
2247 data |= TLAN_HC_AD_RST;
2248 outl(data, dev->base_addr + TLAN_HOST_CMD);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002249
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250 udelay(1000);
2251
2252/* 2. Turn off interrupts. ( Probably isn't necessary ) */
2253
2254 data = inl(dev->base_addr + TLAN_HOST_CMD);
2255 data |= TLAN_HC_INT_OFF;
2256 outl(data, dev->base_addr + TLAN_HOST_CMD);
2257
2258/* 3. Clear AREGs and HASHs. */
2259
2260 for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) {
2261 TLan_DioWrite32( dev->base_addr, (u16) i, 0 );
2262 }
2263
2264/* 4. Setup NetConfig register. */
2265
2266 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2267 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
2268
2269/* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */
2270
2271 outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD );
2272 outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD );
2273
2274/* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */
2275
2276 outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR );
2277 addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
2278 TLan_SetBit( TLAN_NET_SIO_NMRST, addr );
2279
2280/* 7. Setup the remaining registers. */
2281
2282 if ( priv->tlanRev >= 0x30 ) {
2283 data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC;
2284 TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 );
2285 }
2286 TLan_PhyDetect( dev );
2287 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002288
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289 if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) {
2290 data |= TLAN_NET_CFG_BIT;
2291 if ( priv->aui == 1 ) {
2292 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a );
2293 } else if ( priv->duplex == TLAN_DUPLEX_FULL ) {
2294 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 );
2295 priv->tlanFullDuplex = TRUE;
2296 } else {
2297 TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 );
2298 }
2299 }
2300
2301 if ( priv->phyNum == 0 ) {
2302 data |= TLAN_NET_CFG_PHY_EN;
2303 }
2304 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data );
2305
2306 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2307 TLan_FinishReset( dev );
2308 } else {
2309 TLan_PhyPowerDown( dev );
2310 }
2311
2312} /* TLan_ResetAdapter */
2313
2314
2315
2316
2317void
2318TLan_FinishReset( struct net_device *dev )
2319{
2320 TLanPrivateInfo *priv = netdev_priv(dev);
2321 u8 data;
2322 u32 phy;
2323 u8 sio;
2324 u16 status;
2325 u16 partner;
2326 u16 tlphy_ctl;
2327 u16 tlphy_par;
2328 u16 tlphy_id1, tlphy_id2;
2329 int i;
2330
2331 phy = priv->phy[priv->phyNum];
2332
2333 data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP;
2334 if ( priv->tlanFullDuplex ) {
2335 data |= TLAN_NET_CMD_DUPLEX;
2336 }
2337 TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002338 data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339 if ( priv->phyNum == 0 ) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002340 data |= TLAN_NET_MASK_MASK7;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341 }
2342 TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data );
2343 TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 );
2344 TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 );
2345 TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002346
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347 if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || ( priv->aui ) ) {
2348 status = MII_GS_LINK;
2349 printk( "TLAN: %s: Link forced.\n", dev->name );
2350 } else {
2351 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2352 udelay( 1000 );
2353 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002354 if ( (status & MII_GS_LINK) && /* We only support link info on Nat.Sem. PHY's */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002355 (tlphy_id1 == NAT_SEM_ID1) &&
2356 (tlphy_id2 == NAT_SEM_ID2) ) {
2357 TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner );
2358 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002359
Linus Torvalds1da177e2005-04-16 15:20:36 -07002360 printk( "TLAN: %s: Link active with ", dev->name );
2361 if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002362 printk( "forced 10%sMbps %s-Duplex\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002363 tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
2364 tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
2365 } else {
2366 printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n",
2367 tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0",
2368 tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half");
2369 printk("TLAN: Partner capability: ");
2370 for (i = 5; i <= 10; i++)
2371 if (partner & (1<<i))
2372 printk("%s",media[i-5]);
2373 printk("\n");
2374 }
2375
2376 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002377#ifdef MONITOR
Linus Torvalds1da177e2005-04-16 15:20:36 -07002378 /* We have link beat..for now anyway */
2379 priv->link = 1;
2380 /*Enabling link beat monitoring */
2381 TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002382#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383 } else if (status & MII_GS_LINK) {
2384 printk( "TLAN: %s: Link active\n", dev->name );
2385 TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK );
2386 }
2387 }
2388
2389 if ( priv->phyNum == 0 ) {
2390 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl );
2391 tlphy_ctl |= TLAN_TC_INTEN;
2392 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl );
2393 sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO );
2394 sio |= TLAN_NET_SIO_MINTEN;
2395 TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio );
2396 }
2397
2398 if ( status & MII_GS_LINK ) {
2399 TLan_SetMac( dev, 0, dev->dev_addr );
2400 priv->phyOnline = 1;
2401 outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
2402 if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) {
2403 outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 );
2404 }
2405 outl( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM );
2406 outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD );
2407 netif_carrier_on(dev);
2408 } else {
2409 printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n", dev->name );
2410 TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET );
2411 return;
2412 }
James Harper562faf42005-05-05 15:14:18 -07002413 TLan_SetMulticastList(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002414
2415} /* TLan_FinishReset */
2416
2417
2418
2419
2420 /***************************************************************
2421 * TLan_SetMac
2422 *
2423 * Returns:
2424 * Nothing
2425 * Parms:
2426 * dev Pointer to device structure of adapter
2427 * on which to change the AREG.
2428 * areg The AREG to set the address in (0 - 3).
2429 * mac A pointer to an array of chars. Each
2430 * element stores one byte of the address.
2431 * IE, it isn't in ascii.
2432 *
2433 * This function transfers a MAC address to one of the
2434 * TLAN AREGs (address registers). The TLAN chip locks
2435 * the register on writing to offset 0 and unlocks the
2436 * register after writing to offset 5. If NULL is passed
2437 * in mac, then the AREG is filled with 0's.
2438 *
2439 **************************************************************/
2440
2441void TLan_SetMac( struct net_device *dev, int areg, char *mac )
2442{
2443 int i;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002444
Linus Torvalds1da177e2005-04-16 15:20:36 -07002445 areg *= 6;
2446
2447 if ( mac != NULL ) {
2448 for ( i = 0; i < 6; i++ )
2449 TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, mac[i] );
2450 } else {
2451 for ( i = 0; i < 6; i++ )
2452 TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, 0 );
2453 }
2454
2455} /* TLan_SetMac */
2456
2457
2458
2459
2460/*****************************************************************************
2461******************************************************************************
2462
2463 ThunderLAN Driver PHY Layer Routines
2464
2465******************************************************************************
2466*****************************************************************************/
2467
2468
2469
2470 /*********************************************************************
2471 * TLan_PhyPrint
2472 *
2473 * Returns:
2474 * Nothing
2475 * Parms:
2476 * dev A pointer to the device structure of the
2477 * TLAN device having the PHYs to be detailed.
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002478 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07002479 * This function prints the registers a PHY (aka transceiver).
2480 *
2481 ********************************************************************/
2482
2483void TLan_PhyPrint( struct net_device *dev )
2484{
2485 TLanPrivateInfo *priv = netdev_priv(dev);
2486 u16 i, data0, data1, data2, data3, phy;
2487
2488 phy = priv->phy[priv->phyNum];
2489
2490 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2491 printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name );
2492 } else if ( phy <= TLAN_PHY_MAX_ADDR ) {
2493 printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy );
2494 printk( "TLAN: Off. +0 +1 +2 +3 \n" );
2495 for ( i = 0; i < 0x20; i+= 4 ) {
2496 printk( "TLAN: 0x%02x", i );
2497 TLan_MiiReadReg( dev, phy, i, &data0 );
2498 printk( " 0x%04hx", data0 );
2499 TLan_MiiReadReg( dev, phy, i + 1, &data1 );
2500 printk( " 0x%04hx", data1 );
2501 TLan_MiiReadReg( dev, phy, i + 2, &data2 );
2502 printk( " 0x%04hx", data2 );
2503 TLan_MiiReadReg( dev, phy, i + 3, &data3 );
2504 printk( " 0x%04hx\n", data3 );
2505 }
2506 } else {
2507 printk( "TLAN: Device %s, Invalid PHY.\n", dev->name );
2508 }
2509
2510} /* TLan_PhyPrint */
2511
2512
2513
2514
2515 /*********************************************************************
2516 * TLan_PhyDetect
2517 *
2518 * Returns:
2519 * Nothing
2520 * Parms:
2521 * dev A pointer to the device structure of the adapter
2522 * for which the PHY needs determined.
2523 *
2524 * So far I've found that adapters which have external PHYs
2525 * may also use the internal PHY for part of the functionality.
2526 * (eg, AUI/Thinnet). This function finds out if this TLAN
2527 * chip has an internal PHY, and then finds the first external
2528 * PHY (starting from address 0) if it exists).
2529 *
2530 ********************************************************************/
2531
2532void TLan_PhyDetect( struct net_device *dev )
2533{
2534 TLanPrivateInfo *priv = netdev_priv(dev);
2535 u16 control;
2536 u16 hi;
2537 u16 lo;
2538 u32 phy;
2539
2540 if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) {
2541 priv->phyNum = 0xFFFF;
2542 return;
2543 }
2544
2545 TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002546
Linus Torvalds1da177e2005-04-16 15:20:36 -07002547 if ( hi != 0xFFFF ) {
2548 priv->phy[0] = TLAN_PHY_MAX_ADDR;
2549 } else {
2550 priv->phy[0] = TLAN_PHY_NONE;
2551 }
2552
2553 priv->phy[1] = TLAN_PHY_NONE;
2554 for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) {
2555 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control );
2556 TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi );
2557 TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo );
2558 if ( ( control != 0xFFFF ) || ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) {
2559 TLAN_DBG( TLAN_DEBUG_GNRL, "PHY found at %02x %04x %04x %04x\n", phy, control, hi, lo );
2560 if ( ( priv->phy[1] == TLAN_PHY_NONE ) && ( phy != TLAN_PHY_MAX_ADDR ) ) {
2561 priv->phy[1] = phy;
2562 }
2563 }
2564 }
2565
2566 if ( priv->phy[1] != TLAN_PHY_NONE ) {
2567 priv->phyNum = 1;
2568 } else if ( priv->phy[0] != TLAN_PHY_NONE ) {
2569 priv->phyNum = 0;
2570 } else {
2571 printk( "TLAN: Cannot initialize device, no PHY was found!\n" );
2572 }
2573
2574} /* TLan_PhyDetect */
2575
2576
2577
2578
2579void TLan_PhyPowerDown( struct net_device *dev )
2580{
2581 TLanPrivateInfo *priv = netdev_priv(dev);
2582 u16 value;
2583
2584 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name );
2585 value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE;
2586 TLan_MiiSync( dev->base_addr );
2587 TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
2588 if ( ( priv->phyNum == 0 ) && ( priv->phy[1] != TLAN_PHY_NONE ) && ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) {
2589 TLan_MiiSync( dev->base_addr );
2590 TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value );
2591 }
2592
2593 /* Wait for 50 ms and powerup
2594 * This is abitrary. It is intended to make sure the
2595 * transceiver settles.
2596 */
2597 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP );
2598
2599} /* TLan_PhyPowerDown */
2600
2601
2602
2603
2604void TLan_PhyPowerUp( struct net_device *dev )
2605{
2606 TLanPrivateInfo *priv = netdev_priv(dev);
2607 u16 value;
2608
2609 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name );
2610 TLan_MiiSync( dev->base_addr );
2611 value = MII_GC_LOOPBK;
2612 TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value );
2613 TLan_MiiSync(dev->base_addr);
2614 /* Wait for 500 ms and reset the
2615 * transceiver. The TLAN docs say both 50 ms and
2616 * 500 ms, so do the longer, just in case.
2617 */
2618 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET );
2619
2620} /* TLan_PhyPowerUp */
2621
2622
2623
2624
2625void TLan_PhyReset( struct net_device *dev )
2626{
2627 TLanPrivateInfo *priv = netdev_priv(dev);
2628 u16 phy;
2629 u16 value;
2630
2631 phy = priv->phy[priv->phyNum];
2632
2633 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name );
2634 TLan_MiiSync( dev->base_addr );
2635 value = MII_GC_LOOPBK | MII_GC_RESET;
2636 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value );
2637 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
2638 while ( value & MII_GC_RESET ) {
2639 TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value );
2640 }
2641
2642 /* Wait for 500 ms and initialize.
2643 * I don't remember why I wait this long.
2644 * I've changed this to 50ms, as it seems long enough.
2645 */
2646 TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK );
2647
2648} /* TLan_PhyReset */
2649
2650
2651
2652
2653void TLan_PhyStartLink( struct net_device *dev )
2654{
2655 TLanPrivateInfo *priv = netdev_priv(dev);
2656 u16 ability;
2657 u16 control;
2658 u16 data;
2659 u16 phy;
2660 u16 status;
2661 u16 tctl;
2662
2663 phy = priv->phy[priv->phyNum];
2664 TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name );
2665 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2666 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability );
2667
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002668 if ( ( status & MII_GS_AUTONEG ) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -07002669 ( ! priv->aui ) ) {
2670 ability = status >> 11;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002671 if ( priv->speed == TLAN_SPEED_10 &&
Linus Torvalds1da177e2005-04-16 15:20:36 -07002672 priv->duplex == TLAN_DUPLEX_HALF) {
2673 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000);
2674 } else if ( priv->speed == TLAN_SPEED_10 &&
2675 priv->duplex == TLAN_DUPLEX_FULL) {
2676 priv->tlanFullDuplex = TRUE;
2677 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100);
2678 } else if ( priv->speed == TLAN_SPEED_100 &&
2679 priv->duplex == TLAN_DUPLEX_HALF) {
2680 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000);
2681 } else if ( priv->speed == TLAN_SPEED_100 &&
2682 priv->duplex == TLAN_DUPLEX_FULL) {
2683 priv->tlanFullDuplex = TRUE;
2684 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100);
2685 } else {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002686
Linus Torvalds1da177e2005-04-16 15:20:36 -07002687 /* Set Auto-Neg advertisement */
2688 TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1);
2689 /* Enablee Auto-Neg */
2690 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 );
2691 /* Restart Auto-Neg */
2692 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 );
2693 /* Wait for 4 sec for autonegotiation
2694 * to complete. The max spec time is less than this
2695 * but the card need additional time to start AN.
2696 * .5 sec should be plenty extra.
2697 */
2698 printk( "TLAN: %s: Starting autonegotiation.\n", dev->name );
2699 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN );
2700 return;
2701 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002702
2703 }
2704
Linus Torvalds1da177e2005-04-16 15:20:36 -07002705 if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) {
2706 priv->phyNum = 0;
2707 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2708 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
2709 TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN );
2710 return;
2711 } else if ( priv->phyNum == 0 ) {
2712 control = 0;
2713 TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl );
2714 if ( priv->aui ) {
2715 tctl |= TLAN_TC_AUISEL;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002716 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002717 tctl &= ~TLAN_TC_AUISEL;
2718 if ( priv->duplex == TLAN_DUPLEX_FULL ) {
2719 control |= MII_GC_DUPLEX;
2720 priv->tlanFullDuplex = TRUE;
2721 }
2722 if ( priv->speed == TLAN_SPEED_100 ) {
2723 control |= MII_GC_SPEEDSEL;
2724 }
2725 }
2726 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control );
2727 TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl );
2728 }
2729
2730 /* Wait for 2 sec to give the transceiver time
2731 * to establish link.
2732 */
2733 TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET );
2734
2735} /* TLan_PhyStartLink */
2736
2737
2738
2739
2740void TLan_PhyFinishAutoNeg( struct net_device *dev )
2741{
2742 TLanPrivateInfo *priv = netdev_priv(dev);
2743 u16 an_adv;
2744 u16 an_lpa;
2745 u16 data;
2746 u16 mode;
2747 u16 phy;
2748 u16 status;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002749
Linus Torvalds1da177e2005-04-16 15:20:36 -07002750 phy = priv->phy[priv->phyNum];
2751
2752 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2753 udelay( 1000 );
2754 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status );
2755
2756 if ( ! ( status & MII_GS_AUTOCMPLT ) ) {
2757 /* Wait for 8 sec to give the process
2758 * more time. Perhaps we should fail after a while.
2759 */
2760 if (!priv->neg_be_verbose++) {
2761 printk(KERN_INFO "TLAN: Giving autonegotiation more time.\n");
2762 printk(KERN_INFO "TLAN: Please check that your adapter has\n");
2763 printk(KERN_INFO "TLAN: been properly connected to a HUB or Switch.\n");
2764 printk(KERN_INFO "TLAN: Trying to establish link in the background...\n");
2765 }
2766 TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN );
2767 return;
2768 }
2769
2770 printk( "TLAN: %s: Autonegotiation complete.\n", dev->name );
2771 TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv );
2772 TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa );
2773 mode = an_adv & an_lpa & 0x03E0;
2774 if ( mode & 0x0100 ) {
2775 priv->tlanFullDuplex = TRUE;
2776 } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) {
2777 priv->tlanFullDuplex = TRUE;
2778 }
2779
2780 if ( ( ! ( mode & 0x0180 ) ) && ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && ( priv->phyNum != 0 ) ) {
2781 priv->phyNum = 0;
2782 data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN;
2783 TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data );
2784 TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN );
2785 return;
2786 }
2787
2788 if ( priv->phyNum == 0 ) {
2789 if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || ( an_adv & an_lpa & 0x0040 ) ) {
2790 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB | MII_GC_DUPLEX );
2791 printk( "TLAN: Starting internal PHY with FULL-DUPLEX\n" );
2792 } else {
2793 TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB );
2794 printk( "TLAN: Starting internal PHY with HALF-DUPLEX\n" );
2795 }
2796 }
2797
2798 /* Wait for 100 ms. No reason in partiticular.
2799 */
2800 TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002801
Linus Torvalds1da177e2005-04-16 15:20:36 -07002802} /* TLan_PhyFinishAutoNeg */
2803
2804#ifdef MONITOR
2805
2806 /*********************************************************************
2807 *
2808 * TLan_phyMonitor
2809 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002810 * Returns:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002811 * None
2812 *
2813 * Params:
2814 * dev The device structure of this device.
2815 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002816 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07002817 * This function monitors PHY condition by reading the status
2818 * register via the MII bus. This can be used to give info
2819 * about link changes (up/down), and possible switch to alternate
2820 * media.
2821 *
2822 * ******************************************************************/
2823
2824void TLan_PhyMonitor( struct net_device *dev )
2825{
2826 TLanPrivateInfo *priv = netdev_priv(dev);
2827 u16 phy;
2828 u16 phy_status;
2829
2830 phy = priv->phy[priv->phyNum];
2831
2832 /* Get PHY status register */
2833 TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status );
2834
2835 /* Check if link has been lost */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002836 if (!(phy_status & MII_GS_LINK)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002837 if (priv->link) {
2838 priv->link = 0;
2839 printk(KERN_DEBUG "TLAN: %s has lost link\n", dev->name);
7d17c1d2005-05-12 19:45:25 -04002840 netif_carrier_off(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002841 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
2842 return;
2843 }
2844 }
2845
2846 /* Link restablished? */
2847 if ((phy_status & MII_GS_LINK) && !priv->link) {
2848 priv->link = 1;
2849 printk(KERN_DEBUG "TLAN: %s has reestablished link\n", dev->name);
7d17c1d2005-05-12 19:45:25 -04002850 netif_carrier_on(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002851 }
2852
2853 /* Setup a new monitor */
2854 TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002855}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856
2857#endif /* MONITOR */
2858
2859
2860/*****************************************************************************
2861******************************************************************************
2862
2863 ThunderLAN Driver MII Routines
2864
2865 These routines are based on the information in Chap. 2 of the
2866 "ThunderLAN Programmer's Guide", pp. 15-24.
2867
2868******************************************************************************
2869*****************************************************************************/
2870
2871
2872 /***************************************************************
2873 * TLan_MiiReadReg
2874 *
2875 * Returns:
2876 * 0 if ack received ok
2877 * 1 otherwise.
2878 *
2879 * Parms:
2880 * dev The device structure containing
2881 * The io address and interrupt count
2882 * for this device.
2883 * phy The address of the PHY to be queried.
2884 * reg The register whose contents are to be
Matt Mackall4a4efbd2006-01-03 13:27:11 +01002885 * retrieved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002886 * val A pointer to a variable to store the
2887 * retrieved value.
2888 *
Matt Mackall4a4efbd2006-01-03 13:27:11 +01002889 * This function uses the TLAN's MII bus to retrieve the contents
Linus Torvalds1da177e2005-04-16 15:20:36 -07002890 * of a given register on a PHY. It sends the appropriate info
2891 * and then reads the 16-bit register value from the MII bus via
2892 * the TLAN SIO register.
2893 *
2894 **************************************************************/
2895
2896int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val )
2897{
2898 u8 nack;
2899 u16 sio, tmp;
2900 u32 i;
2901 int err;
2902 int minten;
2903 TLanPrivateInfo *priv = netdev_priv(dev);
2904 unsigned long flags = 0;
2905
2906 err = FALSE;
2907 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
2908 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002909
Linus Torvalds1da177e2005-04-16 15:20:36 -07002910 if (!in_irq())
2911 spin_lock_irqsave(&priv->lock, flags);
2912
2913 TLan_MiiSync(dev->base_addr);
2914
2915 minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
2916 if ( minten )
2917 TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio);
2918
2919 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
2920 TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */
2921 TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
2922 TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
2923
2924
2925 TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */
2926
2927 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */
2928 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2929 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */
2930
2931 nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */
2932 TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */
2933 if (nack) { /* No ACK, so fake it */
2934 for (i = 0; i < 16; i++) {
2935 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
2936 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2937 }
2938 tmp = 0xffff;
2939 err = TRUE;
2940 } else { /* ACK, so read data */
2941 for (tmp = 0, i = 0x8000; i; i >>= 1) {
2942 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio);
2943 if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio))
2944 tmp |= i;
2945 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2946 }
2947 }
2948
2949
2950 TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */
2951 TLan_SetBit(TLAN_NET_SIO_MCLK, sio);
2952
2953 if ( minten )
2954 TLan_SetBit(TLAN_NET_SIO_MINTEN, sio);
2955
2956 *val = tmp;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002957
Linus Torvalds1da177e2005-04-16 15:20:36 -07002958 if (!in_irq())
2959 spin_unlock_irqrestore(&priv->lock, flags);
2960
2961 return err;
2962
2963} /* TLan_MiiReadReg */
2964
2965
2966
2967
2968 /***************************************************************
2969 * TLan_MiiSendData
2970 *
2971 * Returns:
2972 * Nothing
2973 * Parms:
2974 * base_port The base IO port of the adapter in
2975 * question.
2976 * dev The address of the PHY to be queried.
2977 * data The value to be placed on the MII bus.
2978 * num_bits The number of bits in data that are to
2979 * be placed on the MII bus.
2980 *
2981 * This function sends on sequence of bits on the MII
2982 * configuration bus.
2983 *
2984 **************************************************************/
2985
2986void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits )
2987{
2988 u16 sio;
2989 u32 i;
2990
2991 if ( num_bits == 0 )
2992 return;
2993
2994 outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
2995 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
2996 TLan_SetBit( TLAN_NET_SIO_MTXEN, sio );
2997
2998 for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) {
2999 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
3000 (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
3001 if ( data & i )
3002 TLan_SetBit( TLAN_NET_SIO_MDATA, sio );
3003 else
3004 TLan_ClearBit( TLAN_NET_SIO_MDATA, sio );
3005 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3006 (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio );
3007 }
3008
3009} /* TLan_MiiSendData */
3010
3011
3012
3013
3014 /***************************************************************
3015 * TLan_MiiSync
3016 *
3017 * Returns:
3018 * Nothing
3019 * Parms:
3020 * base_port The base IO port of the adapter in
3021 * question.
3022 *
3023 * This functions syncs all PHYs in terms of the MII configuration
3024 * bus.
3025 *
3026 **************************************************************/
3027
3028void TLan_MiiSync( u16 base_port )
3029{
3030 int i;
3031 u16 sio;
3032
3033 outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR );
3034 sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO;
3035
3036 TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio );
3037 for ( i = 0; i < 32; i++ ) {
3038 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio );
3039 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3040 }
3041
3042} /* TLan_MiiSync */
3043
3044
3045
3046
3047 /***************************************************************
3048 * TLan_MiiWriteReg
3049 *
3050 * Returns:
3051 * Nothing
3052 * Parms:
3053 * dev The device structure for the device
3054 * to write to.
3055 * phy The address of the PHY to be written to.
3056 * reg The register whose contents are to be
3057 * written.
3058 * val The value to be written to the register.
3059 *
3060 * This function uses the TLAN's MII bus to write the contents of a
3061 * given register on a PHY. It sends the appropriate info and then
3062 * writes the 16-bit register value from the MII configuration bus
3063 * via the TLAN SIO register.
3064 *
3065 **************************************************************/
3066
3067void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val )
3068{
3069 u16 sio;
3070 int minten;
3071 unsigned long flags = 0;
3072 TLanPrivateInfo *priv = netdev_priv(dev);
3073
3074 outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR);
3075 sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003076
Linus Torvalds1da177e2005-04-16 15:20:36 -07003077 if (!in_irq())
3078 spin_lock_irqsave(&priv->lock, flags);
3079
3080 TLan_MiiSync( dev->base_addr );
3081
3082 minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio );
3083 if ( minten )
3084 TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio );
3085
3086 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */
3087 TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */
3088 TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */
3089 TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */
3090
3091 TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */
3092 TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */
3093
3094 TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */
3095 TLan_SetBit( TLAN_NET_SIO_MCLK, sio );
3096
3097 if ( minten )
3098 TLan_SetBit( TLAN_NET_SIO_MINTEN, sio );
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003099
Linus Torvalds1da177e2005-04-16 15:20:36 -07003100 if (!in_irq())
3101 spin_unlock_irqrestore(&priv->lock, flags);
3102
3103} /* TLan_MiiWriteReg */
3104
3105
3106
3107
3108/*****************************************************************************
3109******************************************************************************
3110
3111 ThunderLAN Driver Eeprom routines
3112
3113 The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A
3114 EEPROM. These functions are based on information in Microchip's
3115 data sheet. I don't know how well this functions will work with
3116 other EEPROMs.
3117
3118******************************************************************************
3119*****************************************************************************/
3120
3121
3122 /***************************************************************
3123 * TLan_EeSendStart
3124 *
3125 * Returns:
3126 * Nothing
Jeff Garzik6aa20a22006-09-13 13:24:59 -04003127 * Parms:
Linus Torvalds1da177e2005-04-16 15:20:36 -07003128 * io_base The IO port base address for the
3129 * TLAN device with the EEPROM to
3130 * use.
3131 *
3132 * This function sends a start cycle to an EEPROM attached
3133 * to a TLAN chip.
3134 *
3135 **************************************************************/
3136
3137void TLan_EeSendStart( u16 io_base )
3138{
3139 u16 sio;
3140
3141 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3142 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3143
3144 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3145 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3146 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3147 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3148 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3149
3150} /* TLan_EeSendStart */
3151
3152
3153
3154
3155 /***************************************************************
3156 * TLan_EeSendByte
3157 *
3158 * Returns:
3159 * If the correct ack was received, 0, otherwise 1
3160 * Parms: io_base The IO port base address for the
3161 * TLAN device with the EEPROM to
3162 * use.
3163 * data The 8 bits of information to
3164 * send to the EEPROM.
3165 * stop If TLAN_EEPROM_STOP is passed, a
3166 * stop cycle is sent after the
3167 * byte is sent after the ack is
3168 * read.
3169 *
3170 * This function sends a byte on the serial EEPROM line,
3171 * driving the clock to send each bit. The function then
3172 * reverses transmission direction and reads an acknowledge
3173 * bit.
3174 *
3175 **************************************************************/
3176
3177int TLan_EeSendByte( u16 io_base, u8 data, int stop )
3178{
3179 int err;
3180 u8 place;
3181 u16 sio;
3182
3183 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3184 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3185
3186 /* Assume clock is low, tx is enabled; */
3187 for ( place = 0x80; place != 0; place >>= 1 ) {
3188 if ( place & data )
3189 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3190 else
3191 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio );
3192 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3193 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3194 }
3195 TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
3196 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3197 err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio );
3198 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3199 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3200
3201 if ( ( ! err ) && stop ) {
3202 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
3203 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3204 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3205 }
3206
3207 return ( err );
3208
3209} /* TLan_EeSendByte */
3210
3211
3212
3213
3214 /***************************************************************
3215 * TLan_EeReceiveByte
3216 *
3217 * Returns:
3218 * Nothing
3219 * Parms:
3220 * io_base The IO port base address for the
3221 * TLAN device with the EEPROM to
3222 * use.
3223 * data An address to a char to hold the
3224 * data sent from the EEPROM.
3225 * stop If TLAN_EEPROM_STOP is passed, a
3226 * stop cycle is sent after the
3227 * byte is received, and no ack is
3228 * sent.
3229 *
3230 * This function receives 8 bits of data from the EEPROM
3231 * over the serial link. It then sends and ack bit, or no
3232 * ack and a stop bit. This function is used to retrieve
3233 * data after the address of a byte in the EEPROM has been
3234 * sent.
3235 *
3236 **************************************************************/
3237
3238void TLan_EeReceiveByte( u16 io_base, u8 *data, int stop )
3239{
3240 u8 place;
3241 u16 sio;
3242
3243 outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR );
3244 sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO;
3245 *data = 0;
3246
3247 /* Assume clock is low, tx is enabled; */
3248 TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio );
3249 for ( place = 0x80; place; place >>= 1 ) {
3250 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3251 if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) )
3252 *data |= place;
3253 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3254 }
3255
3256 TLan_SetBit( TLAN_NET_SIO_ETXEN, sio );
3257 if ( ! stop ) {
3258 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */
3259 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3260 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3261 } else {
3262 TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */
3263 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3264 TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio );
3265 TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */
3266 TLan_SetBit( TLAN_NET_SIO_ECLOK, sio );
3267 TLan_SetBit( TLAN_NET_SIO_EDATA, sio );
3268 }
3269
3270} /* TLan_EeReceiveByte */
3271
3272
3273
3274
3275 /***************************************************************
3276 * TLan_EeReadByte
3277 *
3278 * Returns:
3279 * No error = 0, else, the stage at which the error
3280 * occurred.
3281 * Parms:
3282 * io_base The IO port base address for the
3283 * TLAN device with the EEPROM to
3284 * use.
3285 * ee_addr The address of the byte in the
3286 * EEPROM whose contents are to be
3287 * retrieved.
3288 * data An address to a char to hold the
3289 * data obtained from the EEPROM.
3290 *
3291 * This function reads a byte of information from an byte
3292 * cell in the EEPROM.
3293 *
3294 **************************************************************/
3295
3296int TLan_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data )
3297{
3298 int err;
3299 TLanPrivateInfo *priv = netdev_priv(dev);
3300 unsigned long flags = 0;
3301 int ret=0;
3302
3303 spin_lock_irqsave(&priv->lock, flags);
3304
3305 TLan_EeSendStart( dev->base_addr );
3306 err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK );
3307 if (err)
3308 {
3309 ret=1;
3310 goto fail;
3311 }
3312 err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK );
3313 if (err)
3314 {
3315 ret=2;
3316 goto fail;
3317 }
3318 TLan_EeSendStart( dev->base_addr );
3319 err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK );
3320 if (err)
3321 {
3322 ret=3;
3323 goto fail;
3324 }
3325 TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP );
3326fail:
3327 spin_unlock_irqrestore(&priv->lock, flags);
3328
3329 return ret;
3330
3331} /* TLan_EeReadByte */
3332
3333
3334