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1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * Linux ThunderLAN Driver | |
4 | * | |
5 | * tlan.c | |
6 | * by James Banks | |
7 | * | |
8 | * (C) 1997-1998 Caldera, Inc. | |
9 | * (C) 1998 James Banks | |
10 | * (C) 1999-2001 Torben Mathiasen | |
11 | * (C) 2002 Samuel Chessman | |
12 | * | |
13 | * This software may be used and distributed according to the terms | |
14 | * of the GNU General Public License, incorporated herein by reference. | |
15 | * | |
16 | ** 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. | |
6aa20a22 | 36 | * |
1da177e4 LT |
37 | * Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer! |
38 | * | |
39 | * v1.1 Dec 20, 1999 - Removed linux version checking | |
6aa20a22 | 40 | * Patch from Tigran Aivazian. |
1da177e4 LT |
41 | * - v1.1 includes Alan's SMP updates. |
42 | * - We still have problems on SMP though, | |
6aa20a22 JG |
43 | * but I'm looking into that. |
44 | * | |
1da177e4 LT |
45 | * v1.2 Jan 02, 2000 - Hopefully fixed the SMP deadlock. |
46 | * - Removed dependency of HZ being 100. | |
6aa20a22 | 47 | * - We now allow higher priority timers to |
1da177e4 LT |
48 | * 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. | |
6aa20a22 | 53 | * - Removed call to pci_present(). |
1da177e4 | 54 | * - Removed SA_INTERRUPT flag from irq handler. |
6aa20a22 | 55 | * - Added __init and __initdata to reduce resisdent |
1da177e4 LT |
56 | * 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. | |
6aa20a22 JG |
61 | * - Driver ported to new net API. |
62 | * - tlan.txt has been reworked to reflect current | |
1da177e4 LT |
63 | * 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 | |
6aa20a22 | 77 | * tested it though, as the kernel support is currently |
1da177e4 LT |
78 | * broken (2.3.99p4p3). |
79 | * - Updated tlan.txt accordingly. | |
80 | * - Adjusted minimum/maximum frame length. | |
6aa20a22 | 81 | * - There is now a TLAN website up at |
1da177e4 LT |
82 | * 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. | |
6aa20a22 JG |
95 | * Please read tlan.txt for additional information. |
96 | * - Removed call to check_region(), and used | |
1da177e4 | 97 | * return value of request_region() instead. |
6aa20a22 | 98 | * |
1da177e4 LT |
99 | * 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 | * | |
6aa20a22 JG |
107 | * v1.10 Aug 30, 2000 - Added support for EISA based tlan controllers |
108 | * like the Compaq NetFlex3/E. | |
1da177e4 LT |
109 | * - Rewrote tlan_probe to better handle multiple |
110 | * bus probes. Probing and device setup is now | |
111 | * done through TLan_Probe and TLan_init_one. Actual | |
6aa20a22 | 112 | * hardware probe is done with kernel API and |
1da177e4 LT |
113 | * TLan_EisaProbe. |
114 | * - Adjusted debug information for probing. | |
6aa20a22 JG |
115 | * - Fixed bug that would cause general debug information |
116 | * to be printed after driver removal. | |
1da177e4 | 117 | * - Added transmit timeout handling. |
6aa20a22 JG |
118 | * - Fixed OOM return values in tlan_probe. |
119 | * - Fixed possible mem leak in tlan_exit | |
1da177e4 LT |
120 | * (now tlan_remove_one). |
121 | * - Fixed timer bug in TLan_phyMonitor. | |
122 | * - This driver version is alpha quality, please | |
123 | * send me any bug issues you may encounter. | |
124 | * | |
6aa20a22 | 125 | * v1.11 Aug 31, 2000 - Do not try to register irq 0 if no irq line was |
1da177e4 LT |
126 | * set for EISA cards. |
127 | * - Added support for NetFlex3/E with nibble-rate | |
128 | * 10Base-T PHY. This is untestet as I haven't got | |
129 | * one of these cards. | |
130 | * - Fixed timer being added twice. | |
131 | * - Disabled PhyMonitoring by default as this is | |
132 | * work in progress. Define MONITOR to enable it. | |
133 | * - Now we don't display link info with PHYs that | |
134 | * doesn't support it (level1). | |
135 | * - Incresed tx_timeout beacuse of auto-neg. | |
136 | * - Adjusted timers for forced speeds. | |
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. | |
6aa20a22 | 145 | * - Added support for speed/duplex selection with |
1da177e4 LT |
146 | * 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> | |
1e7f0bd8 | 174 | #include <linux/dma-mapping.h> |
1da177e4 LT |
175 | #include <linux/netdevice.h> |
176 | #include <linux/etherdevice.h> | |
177 | #include <linux/delay.h> | |
178 | #include <linux/spinlock.h> | |
179 | #include <linux/workqueue.h> | |
180 | #include <linux/mii.h> | |
181 | ||
182 | #include "tlan.h" | |
183 | ||
184 | typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 ); | |
185 | ||
186 | ||
187 | /* For removing EISA devices */ | |
188 | static struct net_device *TLan_Eisa_Devices; | |
189 | ||
190 | static int TLanDevicesInstalled; | |
191 | ||
192 | /* Set speed, duplex and aui settings */ | |
193 | static int aui[MAX_TLAN_BOARDS]; | |
194 | static int duplex[MAX_TLAN_BOARDS]; | |
195 | static int speed[MAX_TLAN_BOARDS]; | |
196 | static int boards_found; | |
15efa9bb SH |
197 | module_param_array(aui, int, NULL, 0); |
198 | module_param_array(duplex, int, NULL, 0); | |
199 | module_param_array(speed, int, NULL, 0); | |
200 | MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)"); | |
201 | MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)"); | |
202 | MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)"); | |
1da177e4 LT |
203 | |
204 | MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>"); | |
205 | MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters"); | |
206 | MODULE_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 */ | |
213 | static int debug; | |
15efa9bb SH |
214 | module_param(debug, int, 0); |
215 | MODULE_PARM_DESC(debug, "ThunderLAN debug mask"); | |
1da177e4 LT |
216 | |
217 | static int bbuf; | |
15efa9bb SH |
218 | module_param(bbuf, int, 0); |
219 | MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)"); | |
220 | ||
1da177e4 LT |
221 | static char TLanSignature[] = "TLAN"; |
222 | static const char tlan_banner[] = "ThunderLAN driver v1.15\n"; | |
223 | static int tlan_have_pci; | |
224 | static int tlan_have_eisa; | |
225 | ||
226 | static const char *media[] = { | |
6aa20a22 | 227 | "10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ", |
1da177e4 LT |
228 | "100baseTx-FD", "100baseT4", NULL |
229 | }; | |
230 | ||
231 | static struct board { | |
232 | const char *deviceLabel; | |
233 | u32 flags; | |
234 | u16 addrOfs; | |
235 | } board_info[] = { | |
236 | { "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
237 | { "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
238 | { "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, | |
239 | { "Compaq NetFlex-3/P", TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, | |
240 | { "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 }, | |
241 | { "Compaq Netelligent Integrated 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
242 | { "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 }, | |
243 | { "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 }, | |
244 | { "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 }, | |
245 | { "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 }, | |
246 | { "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 }, | |
247 | { "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, | |
248 | { "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 }, | |
249 | { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */ | |
6aa20a22 | 250 | TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 }, |
1da177e4 LT |
251 | { "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */ |
252 | }; | |
253 | ||
254 | static struct pci_device_id tlan_pci_tbl[] = { | |
255 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10, | |
256 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
257 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100, | |
258 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, | |
259 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I, | |
260 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, | |
261 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER, | |
262 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, | |
263 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B, | |
264 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, | |
265 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI, | |
266 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, | |
267 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D, | |
268 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 }, | |
269 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I, | |
270 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 }, | |
271 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183, | |
272 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 }, | |
273 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325, | |
274 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 }, | |
275 | { PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326, | |
276 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 }, | |
277 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100, | |
278 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 }, | |
279 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2, | |
280 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 }, | |
281 | { 0,} | |
282 | }; | |
6aa20a22 | 283 | MODULE_DEVICE_TABLE(pci, tlan_pci_tbl); |
1da177e4 LT |
284 | |
285 | static void TLan_EisaProbe( void ); | |
286 | static void TLan_Eisa_Cleanup( void ); | |
287 | static int TLan_Init( struct net_device * ); | |
288 | static int TLan_Open( struct net_device *dev ); | |
289 | static int TLan_StartTx( struct sk_buff *, struct net_device *); | |
7d12e780 | 290 | static irqreturn_t TLan_HandleInterrupt( int, void *); |
1da177e4 LT |
291 | static int TLan_Close( struct net_device *); |
292 | static struct net_device_stats *TLan_GetStats( struct net_device *); | |
293 | static void TLan_SetMulticastList( struct net_device *); | |
294 | static int TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd); | |
295 | static int TLan_probe1( struct pci_dev *pdev, long ioaddr, int irq, int rev, const struct pci_device_id *ent); | |
296 | static void TLan_tx_timeout( struct net_device *dev); | |
c4028958 | 297 | static void TLan_tx_timeout_work(struct work_struct *work); |
1da177e4 LT |
298 | static int tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent); |
299 | ||
300 | static u32 TLan_HandleInvalid( struct net_device *, u16 ); | |
301 | static u32 TLan_HandleTxEOF( struct net_device *, u16 ); | |
302 | static u32 TLan_HandleStatOverflow( struct net_device *, u16 ); | |
303 | static u32 TLan_HandleRxEOF( struct net_device *, u16 ); | |
304 | static u32 TLan_HandleDummy( struct net_device *, u16 ); | |
305 | static u32 TLan_HandleTxEOC( struct net_device *, u16 ); | |
306 | static u32 TLan_HandleStatusCheck( struct net_device *, u16 ); | |
307 | static u32 TLan_HandleRxEOC( struct net_device *, u16 ); | |
308 | ||
309 | static void TLan_Timer( unsigned long ); | |
310 | ||
311 | static void TLan_ResetLists( struct net_device * ); | |
312 | static void TLan_FreeLists( struct net_device * ); | |
313 | static void TLan_PrintDio( u16 ); | |
314 | static void TLan_PrintList( TLanList *, char *, int ); | |
315 | static void TLan_ReadAndClearStats( struct net_device *, int ); | |
316 | static void TLan_ResetAdapter( struct net_device * ); | |
317 | static void TLan_FinishReset( struct net_device * ); | |
318 | static void TLan_SetMac( struct net_device *, int areg, char *mac ); | |
319 | ||
320 | static void TLan_PhyPrint( struct net_device * ); | |
321 | static void TLan_PhyDetect( struct net_device * ); | |
322 | static void TLan_PhyPowerDown( struct net_device * ); | |
323 | static void TLan_PhyPowerUp( struct net_device * ); | |
324 | static void TLan_PhyReset( struct net_device * ); | |
325 | static void TLan_PhyStartLink( struct net_device * ); | |
326 | static void TLan_PhyFinishAutoNeg( struct net_device * ); | |
327 | #ifdef MONITOR | |
328 | static void TLan_PhyMonitor( struct net_device * ); | |
329 | #endif | |
330 | ||
331 | /* | |
332 | static int TLan_PhyNop( struct net_device * ); | |
333 | static int TLan_PhyInternalCheck( struct net_device * ); | |
334 | static int TLan_PhyInternalService( struct net_device * ); | |
335 | static int TLan_PhyDp83840aCheck( struct net_device * ); | |
336 | */ | |
337 | ||
338 | static int TLan_MiiReadReg( struct net_device *, u16, u16, u16 * ); | |
339 | static void TLan_MiiSendData( u16, u32, unsigned ); | |
340 | static void TLan_MiiSync( u16 ); | |
341 | static void TLan_MiiWriteReg( struct net_device *, u16, u16, u16 ); | |
342 | ||
343 | static void TLan_EeSendStart( u16 ); | |
344 | static int TLan_EeSendByte( u16, u8, int ); | |
345 | static void TLan_EeReceiveByte( u16, u8 *, int ); | |
346 | static int TLan_EeReadByte( struct net_device *, u8, u8 * ); | |
347 | ||
348 | ||
93e16847 | 349 | static inline void |
1da177e4 LT |
350 | TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb) |
351 | { | |
352 | unsigned long addr = (unsigned long)skb; | |
93e16847 SH |
353 | tag->buffer[9].address = addr; |
354 | tag->buffer[8].address = upper_32_bits(addr); | |
1da177e4 LT |
355 | } |
356 | ||
93e16847 SH |
357 | static inline struct sk_buff * |
358 | TLan_GetSKB( const struct tlan_list_tag *tag) | |
1da177e4 | 359 | { |
93e16847 SH |
360 | unsigned long addr; |
361 | ||
362 | addr = tag->buffer[8].address; | |
363 | addr |= (tag->buffer[9].address << 16) << 16; | |
1da177e4 LT |
364 | return (struct sk_buff *) addr; |
365 | } | |
366 | ||
367 | ||
368 | static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = { | |
369 | TLan_HandleInvalid, | |
370 | TLan_HandleTxEOF, | |
371 | TLan_HandleStatOverflow, | |
372 | TLan_HandleRxEOF, | |
373 | TLan_HandleDummy, | |
374 | TLan_HandleTxEOC, | |
375 | TLan_HandleStatusCheck, | |
376 | TLan_HandleRxEOC | |
377 | }; | |
378 | ||
379 | static inline void | |
380 | TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type ) | |
381 | { | |
382 | TLanPrivateInfo *priv = netdev_priv(dev); | |
383 | unsigned long flags = 0; | |
6aa20a22 | 384 | |
1da177e4 LT |
385 | if (!in_irq()) |
386 | spin_lock_irqsave(&priv->lock, flags); | |
387 | if ( priv->timer.function != NULL && | |
6aa20a22 | 388 | priv->timerType != TLAN_TIMER_ACTIVITY ) { |
1da177e4 LT |
389 | if (!in_irq()) |
390 | spin_unlock_irqrestore(&priv->lock, flags); | |
391 | return; | |
392 | } | |
393 | priv->timer.function = &TLan_Timer; | |
394 | if (!in_irq()) | |
395 | spin_unlock_irqrestore(&priv->lock, flags); | |
396 | ||
397 | priv->timer.data = (unsigned long) dev; | |
398 | priv->timerSetAt = jiffies; | |
399 | priv->timerType = type; | |
400 | mod_timer(&priv->timer, jiffies + ticks); | |
6aa20a22 | 401 | |
1da177e4 LT |
402 | } /* TLan_SetTimer */ |
403 | ||
404 | ||
405 | /***************************************************************************** | |
406 | ****************************************************************************** | |
407 | ||
408 | ThunderLAN Driver Primary Functions | |
409 | ||
410 | These functions are more or less common to all Linux network drivers. | |
411 | ||
412 | ****************************************************************************** | |
413 | *****************************************************************************/ | |
414 | ||
415 | ||
416 | ||
417 | ||
418 | ||
419 | /*************************************************************** | |
420 | * tlan_remove_one | |
421 | * | |
422 | * Returns: | |
423 | * Nothing | |
424 | * Parms: | |
425 | * None | |
426 | * | |
427 | * Goes through the TLanDevices list and frees the device | |
428 | * structs and memory associated with each device (lists | |
429 | * and buffers). It also ureserves the IO port regions | |
430 | * associated with this device. | |
431 | * | |
432 | **************************************************************/ | |
433 | ||
434 | ||
435 | static void __devexit tlan_remove_one( struct pci_dev *pdev) | |
436 | { | |
437 | struct net_device *dev = pci_get_drvdata( pdev ); | |
438 | TLanPrivateInfo *priv = netdev_priv(dev); | |
6aa20a22 | 439 | |
1da177e4 LT |
440 | unregister_netdev( dev ); |
441 | ||
442 | if ( priv->dmaStorage ) { | |
443 | pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA ); | |
444 | } | |
445 | ||
446 | #ifdef CONFIG_PCI | |
447 | pci_release_regions(pdev); | |
448 | #endif | |
6aa20a22 | 449 | |
1da177e4 | 450 | free_netdev( dev ); |
6aa20a22 | 451 | |
1da177e4 | 452 | pci_set_drvdata( pdev, NULL ); |
6aa20a22 | 453 | } |
1da177e4 LT |
454 | |
455 | static struct pci_driver tlan_driver = { | |
456 | .name = "tlan", | |
457 | .id_table = tlan_pci_tbl, | |
458 | .probe = tlan_init_one, | |
6aa20a22 | 459 | .remove = __devexit_p(tlan_remove_one), |
1da177e4 LT |
460 | }; |
461 | ||
462 | static int __init tlan_probe(void) | |
463 | { | |
6c04a515 | 464 | int rc = -ENODEV; |
6aa20a22 | 465 | |
1da177e4 | 466 | printk(KERN_INFO "%s", tlan_banner); |
6aa20a22 | 467 | |
1da177e4 | 468 | TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n"); |
6aa20a22 | 469 | |
1da177e4 LT |
470 | /* Use new style PCI probing. Now the kernel will |
471 | do most of this for us */ | |
6c04a515 LP |
472 | rc = pci_register_driver(&tlan_driver); |
473 | ||
474 | if (rc != 0) { | |
475 | printk(KERN_ERR "TLAN: Could not register pci driver.\n"); | |
476 | goto err_out_pci_free; | |
477 | } | |
1da177e4 LT |
478 | |
479 | TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n"); | |
480 | TLan_EisaProbe(); | |
6aa20a22 JG |
481 | |
482 | printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d EISA: %d\n", | |
1da177e4 LT |
483 | TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s", |
484 | tlan_have_pci, tlan_have_eisa); | |
485 | ||
486 | if (TLanDevicesInstalled == 0) { | |
6c04a515 LP |
487 | rc = -ENODEV; |
488 | goto err_out_pci_unreg; | |
1da177e4 LT |
489 | } |
490 | return 0; | |
6c04a515 LP |
491 | |
492 | err_out_pci_unreg: | |
493 | pci_unregister_driver(&tlan_driver); | |
494 | err_out_pci_free: | |
6c04a515 | 495 | return rc; |
1da177e4 | 496 | } |
6aa20a22 | 497 | |
1da177e4 LT |
498 | |
499 | static int __devinit tlan_init_one( struct pci_dev *pdev, | |
500 | const struct pci_device_id *ent) | |
501 | { | |
502 | return TLan_probe1( pdev, -1, -1, 0, ent); | |
503 | } | |
504 | ||
505 | ||
506 | /* | |
507 | *************************************************************** | |
508 | * tlan_probe1 | |
509 | * | |
510 | * Returns: | |
511 | * 0 on success, error code on error | |
6aa20a22 | 512 | * Parms: |
1da177e4 LT |
513 | * none |
514 | * | |
515 | * The name is lower case to fit in with all the rest of | |
6aa20a22 | 516 | * the netcard_probe names. This function looks for |
1da177e4 LT |
517 | * another TLan based adapter, setting it up with the |
518 | * allocated device struct if one is found. | |
519 | * tlan_probe has been ported to the new net API and | |
520 | * now allocates its own device structure. This function | |
521 | * is also used by modules. | |
522 | * | |
523 | **************************************************************/ | |
524 | ||
6aa20a22 | 525 | static int __devinit TLan_probe1(struct pci_dev *pdev, |
1da177e4 LT |
526 | long ioaddr, int irq, int rev, const struct pci_device_id *ent ) |
527 | { | |
528 | ||
529 | struct net_device *dev; | |
530 | TLanPrivateInfo *priv; | |
1da177e4 LT |
531 | u16 device_id; |
532 | int reg, rc = -ENODEV; | |
533 | ||
ad9f6713 | 534 | #ifdef CONFIG_PCI |
1da177e4 LT |
535 | if (pdev) { |
536 | rc = pci_enable_device(pdev); | |
537 | if (rc) | |
538 | return rc; | |
539 | ||
540 | rc = pci_request_regions(pdev, TLanSignature); | |
541 | if (rc) { | |
542 | printk(KERN_ERR "TLAN: Could not reserve IO regions\n"); | |
543 | goto err_out; | |
544 | } | |
545 | } | |
ad9f6713 | 546 | #endif /* CONFIG_PCI */ |
1da177e4 LT |
547 | |
548 | dev = alloc_etherdev(sizeof(TLanPrivateInfo)); | |
549 | if (dev == NULL) { | |
550 | printk(KERN_ERR "TLAN: Could not allocate memory for device.\n"); | |
551 | rc = -ENOMEM; | |
552 | goto err_out_regions; | |
553 | } | |
1da177e4 | 554 | SET_NETDEV_DEV(dev, &pdev->dev); |
6aa20a22 | 555 | |
1da177e4 LT |
556 | priv = netdev_priv(dev); |
557 | ||
558 | priv->pciDev = pdev; | |
c4028958 | 559 | priv->dev = dev; |
6aa20a22 | 560 | |
1da177e4 LT |
561 | /* Is this a PCI device? */ |
562 | if (pdev) { | |
563 | u32 pci_io_base = 0; | |
564 | ||
565 | priv->adapter = &board_info[ent->driver_data]; | |
566 | ||
1e7f0bd8 | 567 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 LT |
568 | if (rc) { |
569 | printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n"); | |
570 | goto err_out_free_dev; | |
571 | } | |
572 | ||
1da177e4 LT |
573 | for ( reg= 0; reg <= 5; reg ++ ) { |
574 | if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) { | |
575 | pci_io_base = pci_resource_start(pdev, reg); | |
576 | TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n", | |
577 | pci_io_base); | |
578 | break; | |
579 | } | |
580 | } | |
581 | if (!pci_io_base) { | |
582 | printk(KERN_ERR "TLAN: No IO mappings available\n"); | |
583 | rc = -EIO; | |
584 | goto err_out_free_dev; | |
585 | } | |
6aa20a22 | 586 | |
1da177e4 LT |
587 | dev->base_addr = pci_io_base; |
588 | dev->irq = pdev->irq; | |
44c10138 | 589 | priv->adapterRev = pdev->revision; |
1da177e4 LT |
590 | pci_set_master(pdev); |
591 | pci_set_drvdata(pdev, dev); | |
592 | ||
593 | } else { /* EISA card */ | |
594 | /* This is a hack. We need to know which board structure | |
595 | * is suited for this adapter */ | |
596 | device_id = inw(ioaddr + EISA_ID2); | |
597 | priv->is_eisa = 1; | |
598 | if (device_id == 0x20F1) { | |
599 | priv->adapter = &board_info[13]; /* NetFlex-3/E */ | |
600 | priv->adapterRev = 23; /* TLAN 2.3 */ | |
601 | } else { | |
602 | priv->adapter = &board_info[14]; | |
603 | priv->adapterRev = 10; /* TLAN 1.0 */ | |
604 | } | |
605 | dev->base_addr = ioaddr; | |
606 | dev->irq = irq; | |
607 | } | |
608 | ||
609 | /* Kernel parameters */ | |
610 | if (dev->mem_start) { | |
611 | priv->aui = dev->mem_start & 0x01; | |
612 | priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0 : (dev->mem_start & 0x06) >> 1; | |
613 | priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0 : (dev->mem_start & 0x18) >> 3; | |
6aa20a22 | 614 | |
1da177e4 LT |
615 | if (priv->speed == 0x1) { |
616 | priv->speed = TLAN_SPEED_10; | |
617 | } else if (priv->speed == 0x2) { | |
618 | priv->speed = TLAN_SPEED_100; | |
619 | } | |
620 | debug = priv->debug = dev->mem_end; | |
621 | } else { | |
622 | priv->aui = aui[boards_found]; | |
623 | priv->speed = speed[boards_found]; | |
624 | priv->duplex = duplex[boards_found]; | |
625 | priv->debug = debug; | |
626 | } | |
6aa20a22 | 627 | |
1da177e4 LT |
628 | /* This will be used when we get an adapter error from |
629 | * within our irq handler */ | |
c4028958 | 630 | INIT_WORK(&priv->tlan_tqueue, TLan_tx_timeout_work); |
1da177e4 LT |
631 | |
632 | spin_lock_init(&priv->lock); | |
6aa20a22 | 633 | |
1da177e4 LT |
634 | rc = TLan_Init(dev); |
635 | if (rc) { | |
636 | printk(KERN_ERR "TLAN: Could not set up device.\n"); | |
637 | goto err_out_free_dev; | |
638 | } | |
639 | ||
640 | rc = register_netdev(dev); | |
641 | if (rc) { | |
642 | printk(KERN_ERR "TLAN: Could not register device.\n"); | |
643 | goto err_out_uninit; | |
644 | } | |
645 | ||
6aa20a22 | 646 | |
1da177e4 LT |
647 | TLanDevicesInstalled++; |
648 | boards_found++; | |
6aa20a22 | 649 | |
1da177e4 LT |
650 | /* pdev is NULL if this is an EISA device */ |
651 | if (pdev) | |
652 | tlan_have_pci++; | |
653 | else { | |
654 | priv->nextDevice = TLan_Eisa_Devices; | |
655 | TLan_Eisa_Devices = dev; | |
656 | tlan_have_eisa++; | |
657 | } | |
6aa20a22 | 658 | |
1da177e4 LT |
659 | printk(KERN_INFO "TLAN: %s irq=%2d, io=%04x, %s, Rev. %d\n", |
660 | dev->name, | |
661 | (int) dev->irq, | |
662 | (int) dev->base_addr, | |
663 | priv->adapter->deviceLabel, | |
664 | priv->adapterRev); | |
665 | return 0; | |
666 | ||
667 | err_out_uninit: | |
668 | pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, | |
669 | priv->dmaStorageDMA ); | |
670 | err_out_free_dev: | |
671 | free_netdev(dev); | |
672 | err_out_regions: | |
673 | #ifdef CONFIG_PCI | |
674 | if (pdev) | |
675 | pci_release_regions(pdev); | |
676 | #endif | |
677 | err_out: | |
678 | if (pdev) | |
679 | pci_disable_device(pdev); | |
680 | return rc; | |
681 | } | |
682 | ||
683 | ||
684 | static void TLan_Eisa_Cleanup(void) | |
685 | { | |
686 | struct net_device *dev; | |
687 | TLanPrivateInfo *priv; | |
6aa20a22 | 688 | |
1da177e4 LT |
689 | while( tlan_have_eisa ) { |
690 | dev = TLan_Eisa_Devices; | |
691 | priv = netdev_priv(dev); | |
692 | if (priv->dmaStorage) { | |
693 | pci_free_consistent(priv->pciDev, priv->dmaSize, priv->dmaStorage, priv->dmaStorageDMA ); | |
694 | } | |
695 | release_region( dev->base_addr, 0x10); | |
696 | unregister_netdev( dev ); | |
697 | TLan_Eisa_Devices = priv->nextDevice; | |
698 | free_netdev( dev ); | |
699 | tlan_have_eisa--; | |
700 | } | |
701 | } | |
6aa20a22 JG |
702 | |
703 | ||
1da177e4 LT |
704 | static void __exit tlan_exit(void) |
705 | { | |
706 | pci_unregister_driver(&tlan_driver); | |
707 | ||
708 | if (tlan_have_eisa) | |
709 | TLan_Eisa_Cleanup(); | |
710 | ||
1da177e4 LT |
711 | } |
712 | ||
713 | ||
714 | /* Module loading/unloading */ | |
715 | module_init(tlan_probe); | |
716 | module_exit(tlan_exit); | |
717 | ||
718 | ||
719 | ||
720 | /************************************************************** | |
721 | * TLan_EisaProbe | |
722 | * | |
723 | * Returns: 0 on success, 1 otherwise | |
724 | * | |
725 | * Parms: None | |
726 | * | |
727 | * | |
6aa20a22 JG |
728 | * This functions probes for EISA devices and calls |
729 | * TLan_probe1 when one is found. | |
1da177e4 LT |
730 | * |
731 | *************************************************************/ | |
732 | ||
6aa20a22 | 733 | static void __init TLan_EisaProbe (void) |
1da177e4 LT |
734 | { |
735 | long ioaddr; | |
736 | int rc = -ENODEV; | |
737 | int irq; | |
738 | u16 device_id; | |
739 | ||
6aa20a22 | 740 | if (!EISA_bus) { |
1da177e4 LT |
741 | TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n"); |
742 | return; | |
743 | } | |
6aa20a22 | 744 | |
1da177e4 LT |
745 | /* Loop through all slots of the EISA bus */ |
746 | for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { | |
6aa20a22 JG |
747 | |
748 | TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC80, inw(ioaddr + EISA_ID)); | |
1da177e4 LT |
749 | TLAN_DBG(TLAN_DEBUG_PROBE,"EISA_ID 0x%4x: 0x%4x\n", (int) ioaddr + 0xC82, inw(ioaddr + EISA_ID2)); |
750 | ||
751 | ||
752 | TLAN_DBG(TLAN_DEBUG_PROBE, "Probing for EISA adapter at IO: 0x%4x : ", | |
753 | (int) ioaddr); | |
6aa20a22 | 754 | if (request_region(ioaddr, 0x10, TLanSignature) == NULL) |
1da177e4 LT |
755 | goto out; |
756 | ||
6aa20a22 | 757 | if (inw(ioaddr + EISA_ID) != 0x110E) { |
1da177e4 LT |
758 | release_region(ioaddr, 0x10); |
759 | goto out; | |
760 | } | |
6aa20a22 | 761 | |
1da177e4 | 762 | device_id = inw(ioaddr + EISA_ID2); |
6aa20a22 | 763 | if (device_id != 0x20F1 && device_id != 0x40F1) { |
1da177e4 LT |
764 | release_region (ioaddr, 0x10); |
765 | goto out; | |
766 | } | |
6aa20a22 | 767 | |
1da177e4 LT |
768 | if (inb(ioaddr + EISA_CR) != 0x1) { /* Check if adapter is enabled */ |
769 | release_region (ioaddr, 0x10); | |
770 | goto out2; | |
771 | } | |
6aa20a22 JG |
772 | |
773 | if (debug == 0x10) | |
1da177e4 LT |
774 | printk("Found one\n"); |
775 | ||
776 | ||
777 | /* Get irq from board */ | |
778 | switch (inb(ioaddr + 0xCC0)) { | |
779 | case(0x10): | |
780 | irq=5; | |
781 | break; | |
782 | case(0x20): | |
783 | irq=9; | |
784 | break; | |
785 | case(0x40): | |
786 | irq=10; | |
787 | break; | |
788 | case(0x80): | |
789 | irq=11; | |
790 | break; | |
791 | default: | |
792 | goto out; | |
6aa20a22 JG |
793 | } |
794 | ||
795 | ||
1da177e4 LT |
796 | /* Setup the newly found eisa adapter */ |
797 | rc = TLan_probe1( NULL, ioaddr, irq, | |
798 | 12, NULL); | |
799 | continue; | |
6aa20a22 | 800 | |
1da177e4 LT |
801 | out: |
802 | if (debug == 0x10) | |
803 | printk("None found\n"); | |
804 | continue; | |
805 | ||
806 | out2: if (debug == 0x10) | |
807 | printk("Card found but it is not enabled, skipping\n"); | |
808 | continue; | |
6aa20a22 | 809 | |
1da177e4 LT |
810 | } |
811 | ||
812 | } /* TLan_EisaProbe */ | |
813 | ||
814 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
815 | static void TLan_Poll(struct net_device *dev) | |
816 | { | |
817 | disable_irq(dev->irq); | |
7d12e780 | 818 | TLan_HandleInterrupt(dev->irq, dev); |
1da177e4 LT |
819 | enable_irq(dev->irq); |
820 | } | |
821 | #endif | |
822 | ||
6aa20a22 | 823 | |
1da177e4 LT |
824 | |
825 | ||
826 | /*************************************************************** | |
827 | * TLan_Init | |
828 | * | |
829 | * Returns: | |
830 | * 0 on success, error code otherwise. | |
831 | * Parms: | |
832 | * dev The structure of the device to be | |
833 | * init'ed. | |
834 | * | |
835 | * This function completes the initialization of the | |
836 | * device structure and driver. It reserves the IO | |
837 | * addresses, allocates memory for the lists and bounce | |
838 | * buffers, retrieves the MAC address from the eeprom | |
839 | * and assignes the device's methods. | |
6aa20a22 | 840 | * |
1da177e4 LT |
841 | **************************************************************/ |
842 | ||
843 | static int TLan_Init( struct net_device *dev ) | |
844 | { | |
845 | int dma_size; | |
846 | int err; | |
847 | int i; | |
848 | TLanPrivateInfo *priv; | |
849 | ||
850 | priv = netdev_priv(dev); | |
6aa20a22 | 851 | |
1da177e4 LT |
852 | if ( bbuf ) { |
853 | dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) | |
854 | * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE ); | |
855 | } else { | |
856 | dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) | |
857 | * ( sizeof(TLanList) ); | |
858 | } | |
93e16847 SH |
859 | priv->dmaStorage = pci_alloc_consistent(priv->pciDev, |
860 | dma_size, &priv->dmaStorageDMA); | |
1da177e4 | 861 | priv->dmaSize = dma_size; |
6aa20a22 | 862 | |
1da177e4 LT |
863 | if ( priv->dmaStorage == NULL ) { |
864 | printk(KERN_ERR "TLAN: Could not allocate lists and buffers for %s.\n", | |
865 | dev->name ); | |
866 | return -ENOMEM; | |
867 | } | |
868 | memset( priv->dmaStorage, 0, dma_size ); | |
93e16847 SH |
869 | priv->rxList = (TLanList *) ALIGN((unsigned long)priv->dmaStorage, 8); |
870 | priv->rxListDMA = ALIGN(priv->dmaStorageDMA, 8); | |
1da177e4 LT |
871 | priv->txList = priv->rxList + TLAN_NUM_RX_LISTS; |
872 | priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS; | |
93e16847 | 873 | |
1da177e4 LT |
874 | if ( bbuf ) { |
875 | priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS ); | |
876 | priv->rxBufferDMA =priv->txListDMA + sizeof(TLanList) * TLAN_NUM_TX_LISTS; | |
877 | priv->txBuffer = priv->rxBuffer + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); | |
878 | priv->txBufferDMA = priv->rxBufferDMA + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); | |
879 | } | |
880 | ||
881 | err = 0; | |
882 | for ( i = 0; i < 6 ; i++ ) | |
883 | err |= TLan_EeReadByte( dev, | |
884 | (u8) priv->adapter->addrOfs + i, | |
885 | (u8 *) &dev->dev_addr[i] ); | |
886 | if ( err ) { | |
887 | printk(KERN_ERR "TLAN: %s: Error reading MAC from eeprom: %d\n", | |
888 | dev->name, | |
889 | err ); | |
890 | } | |
891 | dev->addr_len = 6; | |
892 | ||
893 | netif_carrier_off(dev); | |
894 | ||
895 | /* Device methods */ | |
896 | dev->open = &TLan_Open; | |
897 | dev->hard_start_xmit = &TLan_StartTx; | |
898 | dev->stop = &TLan_Close; | |
899 | dev->get_stats = &TLan_GetStats; | |
900 | dev->set_multicast_list = &TLan_SetMulticastList; | |
901 | dev->do_ioctl = &TLan_ioctl; | |
902 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
903 | dev->poll_controller = &TLan_Poll; | |
904 | #endif | |
905 | dev->tx_timeout = &TLan_tx_timeout; | |
906 | dev->watchdog_timeo = TX_TIMEOUT; | |
907 | ||
908 | return 0; | |
909 | ||
910 | } /* TLan_Init */ | |
911 | ||
912 | ||
913 | ||
914 | ||
915 | /*************************************************************** | |
916 | * TLan_Open | |
917 | * | |
918 | * Returns: | |
919 | * 0 on success, error code otherwise. | |
920 | * Parms: | |
921 | * dev Structure of device to be opened. | |
922 | * | |
923 | * This routine puts the driver and TLAN adapter in a | |
924 | * state where it is ready to send and receive packets. | |
925 | * It allocates the IRQ, resets and brings the adapter | |
926 | * out of reset, and allows interrupts. It also delays | |
927 | * the startup for autonegotiation or sends a Rx GO | |
928 | * command to the adapter, as appropriate. | |
929 | * | |
930 | **************************************************************/ | |
931 | ||
932 | static int TLan_Open( struct net_device *dev ) | |
933 | { | |
934 | TLanPrivateInfo *priv = netdev_priv(dev); | |
935 | int err; | |
6aa20a22 | 936 | |
1da177e4 | 937 | priv->tlanRev = TLan_DioRead8( dev->base_addr, TLAN_DEF_REVISION ); |
1fb9df5d | 938 | err = request_irq( dev->irq, TLan_HandleInterrupt, IRQF_SHARED, TLanSignature, dev ); |
6aa20a22 | 939 | |
1da177e4 LT |
940 | if ( err ) { |
941 | printk(KERN_ERR "TLAN: Cannot open %s because IRQ %d is already in use.\n", dev->name, dev->irq ); | |
942 | return err; | |
943 | } | |
6aa20a22 | 944 | |
1da177e4 LT |
945 | init_timer(&priv->timer); |
946 | netif_start_queue(dev); | |
6aa20a22 | 947 | |
1da177e4 LT |
948 | /* NOTE: It might not be necessary to read the stats before a |
949 | reset if you don't care what the values are. | |
950 | */ | |
951 | TLan_ResetLists( dev ); | |
952 | TLan_ReadAndClearStats( dev, TLAN_IGNORE ); | |
953 | TLan_ResetAdapter( dev ); | |
954 | ||
955 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n", dev->name, priv->tlanRev ); | |
956 | ||
957 | return 0; | |
958 | ||
959 | } /* TLan_Open */ | |
960 | ||
961 | ||
962 | ||
963 | /************************************************************** | |
964 | * TLan_ioctl | |
6aa20a22 | 965 | * |
1da177e4 LT |
966 | * Returns: |
967 | * 0 on success, error code otherwise | |
968 | * Params: | |
969 | * dev structure of device to receive ioctl. | |
6aa20a22 | 970 | * |
1da177e4 LT |
971 | * rq ifreq structure to hold userspace data. |
972 | * | |
973 | * cmd ioctl command. | |
974 | * | |
975 | * | |
976 | *************************************************************/ | |
977 | ||
978 | static int TLan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
979 | { | |
980 | TLanPrivateInfo *priv = netdev_priv(dev); | |
981 | struct mii_ioctl_data *data = if_mii(rq); | |
982 | u32 phy = priv->phy[priv->phyNum]; | |
6aa20a22 | 983 | |
1da177e4 LT |
984 | if (!priv->phyOnline) |
985 | return -EAGAIN; | |
986 | ||
987 | switch(cmd) { | |
988 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ | |
989 | data->phy_id = phy; | |
990 | ||
991 | ||
992 | case SIOCGMIIREG: /* Read MII PHY register. */ | |
993 | TLan_MiiReadReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, &data->val_out); | |
994 | return 0; | |
6aa20a22 | 995 | |
1da177e4 LT |
996 | |
997 | case SIOCSMIIREG: /* Write MII PHY register. */ | |
998 | if (!capable(CAP_NET_ADMIN)) | |
999 | return -EPERM; | |
1000 | TLan_MiiWriteReg(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in); | |
1001 | return 0; | |
1002 | default: | |
1003 | return -EOPNOTSUPP; | |
1004 | } | |
1005 | } /* tlan_ioctl */ | |
1006 | ||
1007 | ||
1008 | /*************************************************************** | |
1009 | * TLan_tx_timeout | |
1010 | * | |
1011 | * Returns: nothing | |
1012 | * | |
1013 | * Params: | |
6aa20a22 | 1014 | * dev structure of device which timed out |
1da177e4 LT |
1015 | * during transmit. |
1016 | * | |
1017 | **************************************************************/ | |
1018 | ||
1019 | static void TLan_tx_timeout(struct net_device *dev) | |
1020 | { | |
6aa20a22 | 1021 | |
1da177e4 | 1022 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Transmit timed out.\n", dev->name); |
6aa20a22 | 1023 | |
1da177e4 LT |
1024 | /* Ok so we timed out, lets see what we can do about it...*/ |
1025 | TLan_FreeLists( dev ); | |
6aa20a22 | 1026 | TLan_ResetLists( dev ); |
1da177e4 LT |
1027 | TLan_ReadAndClearStats( dev, TLAN_IGNORE ); |
1028 | TLan_ResetAdapter( dev ); | |
1029 | dev->trans_start = jiffies; | |
6aa20a22 | 1030 | netif_wake_queue( dev ); |
1da177e4 LT |
1031 | |
1032 | } | |
6aa20a22 | 1033 | |
1da177e4 | 1034 | |
c4028958 DH |
1035 | /*************************************************************** |
1036 | * TLan_tx_timeout_work | |
1037 | * | |
1038 | * Returns: nothing | |
1039 | * | |
1040 | * Params: | |
1041 | * work work item of device which timed out | |
1042 | * | |
1043 | **************************************************************/ | |
1044 | ||
1045 | static void TLan_tx_timeout_work(struct work_struct *work) | |
1046 | { | |
1047 | TLanPrivateInfo *priv = | |
1048 | container_of(work, TLanPrivateInfo, tlan_tqueue); | |
1049 | ||
1050 | TLan_tx_timeout(priv->dev); | |
1051 | } | |
1052 | ||
1053 | ||
1da177e4 LT |
1054 | |
1055 | /*************************************************************** | |
1056 | * TLan_StartTx | |
6aa20a22 | 1057 | * |
1da177e4 LT |
1058 | * Returns: |
1059 | * 0 on success, non-zero on failure. | |
1060 | * Parms: | |
1061 | * skb A pointer to the sk_buff containing the | |
1062 | * frame to be sent. | |
1063 | * dev The device to send the data on. | |
1064 | * | |
1065 | * This function adds a frame to the Tx list to be sent | |
1066 | * ASAP. First it verifies that the adapter is ready and | |
1067 | * there is room in the queue. Then it sets up the next | |
1068 | * available list, copies the frame to the corresponding | |
1069 | * buffer. If the adapter Tx channel is idle, it gives | |
1070 | * the adapter a Tx Go command on the list, otherwise it | |
1071 | * sets the forward address of the previous list to point | |
1072 | * to this one. Then it frees the sk_buff. | |
1073 | * | |
1074 | **************************************************************/ | |
1075 | ||
1076 | static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) | |
1077 | { | |
1078 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1079 | TLanList *tail_list; | |
1080 | dma_addr_t tail_list_phys; | |
1081 | u8 *tail_buffer; | |
1da177e4 LT |
1082 | unsigned long flags; |
1083 | ||
1084 | if ( ! priv->phyOnline ) { | |
1085 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s PHY is not ready\n", dev->name ); | |
1086 | dev_kfree_skb_any(skb); | |
1087 | return 0; | |
1088 | } | |
1089 | ||
41873e9a SH |
1090 | if (skb_padto(skb, TLAN_MIN_FRAME_SIZE)) |
1091 | return 0; | |
1092 | ||
1da177e4 LT |
1093 | tail_list = priv->txList + priv->txTail; |
1094 | tail_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txTail; | |
6aa20a22 | 1095 | |
1da177e4 LT |
1096 | if ( tail_list->cStat != TLAN_CSTAT_UNUSED ) { |
1097 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s is busy (Head=%d Tail=%d)\n", dev->name, priv->txHead, priv->txTail ); | |
1098 | netif_stop_queue(dev); | |
1099 | priv->txBusyCount++; | |
1100 | return 1; | |
1101 | } | |
1102 | ||
1103 | tail_list->forward = 0; | |
1104 | ||
1105 | if ( bbuf ) { | |
1106 | tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE ); | |
d626f62b | 1107 | skb_copy_from_linear_data(skb, tail_buffer, skb->len); |
1da177e4 LT |
1108 | } else { |
1109 | tail_list->buffer[0].address = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE); | |
1110 | TLan_StoreSKB(tail_list, skb); | |
1111 | } | |
1112 | ||
41873e9a SH |
1113 | tail_list->frameSize = (u16) skb->len; |
1114 | tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) skb->len; | |
1115 | tail_list->buffer[1].count = 0; | |
1116 | tail_list->buffer[1].address = 0; | |
1da177e4 LT |
1117 | |
1118 | spin_lock_irqsave(&priv->lock, flags); | |
1119 | tail_list->cStat = TLAN_CSTAT_READY; | |
1120 | if ( ! priv->txInProgress ) { | |
1121 | priv->txInProgress = 1; | |
1122 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Starting TX on buffer %d\n", priv->txTail ); | |
1123 | outl( tail_list_phys, dev->base_addr + TLAN_CH_PARM ); | |
1124 | outl( TLAN_HC_GO, dev->base_addr + TLAN_HOST_CMD ); | |
1125 | } else { | |
1126 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Adding buffer %d to TX channel\n", priv->txTail ); | |
1127 | if ( priv->txTail == 0 ) { | |
1128 | ( priv->txList + ( TLAN_NUM_TX_LISTS - 1 ) )->forward = tail_list_phys; | |
1129 | } else { | |
1130 | ( priv->txList + ( priv->txTail - 1 ) )->forward = tail_list_phys; | |
1131 | } | |
1132 | } | |
1133 | spin_unlock_irqrestore(&priv->lock, flags); | |
1134 | ||
1135 | CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS ); | |
1136 | ||
1137 | if ( bbuf ) | |
1138 | dev_kfree_skb_any(skb); | |
6aa20a22 | 1139 | |
1da177e4 LT |
1140 | dev->trans_start = jiffies; |
1141 | return 0; | |
1142 | ||
1143 | } /* TLan_StartTx */ | |
1144 | ||
1145 | ||
1146 | ||
1147 | ||
1148 | /*************************************************************** | |
1149 | * TLan_HandleInterrupt | |
6aa20a22 JG |
1150 | * |
1151 | * Returns: | |
1da177e4 LT |
1152 | * Nothing |
1153 | * Parms: | |
1154 | * irq The line on which the interrupt | |
1155 | * occurred. | |
1156 | * dev_id A pointer to the device assigned to | |
1157 | * this irq line. | |
1da177e4 LT |
1158 | * |
1159 | * This function handles an interrupt generated by its | |
1160 | * assigned TLAN adapter. The function deactivates | |
1161 | * interrupts on its adapter, records the type of | |
1162 | * interrupt, executes the appropriate subhandler, and | |
1163 | * acknowdges the interrupt to the adapter (thus | |
1164 | * re-enabling adapter interrupts. | |
1165 | * | |
1166 | **************************************************************/ | |
1167 | ||
7d12e780 | 1168 | static irqreturn_t TLan_HandleInterrupt(int irq, void *dev_id) |
1da177e4 LT |
1169 | { |
1170 | u32 ack; | |
1171 | struct net_device *dev; | |
1172 | u32 host_cmd; | |
1173 | u16 host_int; | |
1174 | int type; | |
1175 | TLanPrivateInfo *priv; | |
1176 | ||
1177 | dev = dev_id; | |
1178 | priv = netdev_priv(dev); | |
1179 | ||
1180 | spin_lock(&priv->lock); | |
1181 | ||
1182 | host_int = inw( dev->base_addr + TLAN_HOST_INT ); | |
1183 | outw( host_int, dev->base_addr + TLAN_HOST_INT ); | |
1184 | ||
1185 | type = ( host_int & TLAN_HI_IT_MASK ) >> 2; | |
1186 | ||
1187 | ack = TLanIntVector[type]( dev, host_int ); | |
1188 | ||
1189 | if ( ack ) { | |
1190 | host_cmd = TLAN_HC_ACK | ack | ( type << 18 ); | |
1191 | outl( host_cmd, dev->base_addr + TLAN_HOST_CMD ); | |
1192 | } | |
1193 | ||
1194 | spin_unlock(&priv->lock); | |
1195 | ||
1196 | return IRQ_HANDLED; | |
1197 | } /* TLan_HandleInterrupts */ | |
1198 | ||
1199 | ||
1200 | ||
1201 | ||
1202 | /*************************************************************** | |
1203 | * TLan_Close | |
6aa20a22 | 1204 | * |
1da177e4 LT |
1205 | * Returns: |
1206 | * An error code. | |
1207 | * Parms: | |
1208 | * dev The device structure of the device to | |
1209 | * close. | |
1210 | * | |
1211 | * This function shuts down the adapter. It records any | |
1212 | * stats, puts the adapter into reset state, deactivates | |
1213 | * its time as needed, and frees the irq it is using. | |
1214 | * | |
1215 | **************************************************************/ | |
1216 | ||
1217 | static int TLan_Close(struct net_device *dev) | |
1218 | { | |
1219 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1220 | ||
1221 | netif_stop_queue(dev); | |
1222 | priv->neg_be_verbose = 0; | |
1223 | ||
1224 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); | |
1225 | outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); | |
1226 | if ( priv->timer.function != NULL ) { | |
1227 | del_timer_sync( &priv->timer ); | |
1228 | priv->timer.function = NULL; | |
1229 | } | |
6aa20a22 | 1230 | |
1da177e4 LT |
1231 | free_irq( dev->irq, dev ); |
1232 | TLan_FreeLists( dev ); | |
1233 | TLAN_DBG( TLAN_DEBUG_GNRL, "Device %s closed.\n", dev->name ); | |
1234 | ||
1235 | return 0; | |
1236 | ||
1237 | } /* TLan_Close */ | |
1238 | ||
1239 | ||
1240 | ||
1241 | ||
1242 | /*************************************************************** | |
1243 | * TLan_GetStats | |
6aa20a22 | 1244 | * |
1da177e4 LT |
1245 | * Returns: |
1246 | * A pointer to the device's statistics structure. | |
1247 | * Parms: | |
1248 | * dev The device structure to return the | |
1249 | * stats for. | |
1250 | * | |
1251 | * This function updates the devices statistics by reading | |
1252 | * the TLAN chip's onboard registers. Then it returns the | |
1253 | * address of the statistics structure. | |
1254 | * | |
1255 | **************************************************************/ | |
1256 | ||
1257 | static struct net_device_stats *TLan_GetStats( struct net_device *dev ) | |
1258 | { | |
1259 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1260 | int i; | |
1261 | ||
1262 | /* Should only read stats if open ? */ | |
1263 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); | |
1264 | ||
1265 | TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: %s EOC count = %d\n", dev->name, priv->rxEocCount ); | |
1266 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: %s Busy count = %d\n", dev->name, priv->txBusyCount ); | |
1267 | if ( debug & TLAN_DEBUG_GNRL ) { | |
1268 | TLan_PrintDio( dev->base_addr ); | |
6aa20a22 | 1269 | TLan_PhyPrint( dev ); |
1da177e4 LT |
1270 | } |
1271 | if ( debug & TLAN_DEBUG_LIST ) { | |
1272 | for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) | |
1273 | TLan_PrintList( priv->rxList + i, "RX", i ); | |
1274 | for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) | |
1275 | TLan_PrintList( priv->txList + i, "TX", i ); | |
1276 | } | |
6aa20a22 | 1277 | |
f8f31544 | 1278 | return &dev->stats; |
1da177e4 LT |
1279 | |
1280 | } /* TLan_GetStats */ | |
1281 | ||
1282 | ||
1283 | ||
1284 | ||
1285 | /*************************************************************** | |
1286 | * TLan_SetMulticastList | |
6aa20a22 | 1287 | * |
1da177e4 LT |
1288 | * Returns: |
1289 | * Nothing | |
1290 | * Parms: | |
1291 | * dev The device structure to set the | |
1292 | * multicast list for. | |
1293 | * | |
1294 | * This function sets the TLAN adaptor to various receive | |
1295 | * modes. If the IFF_PROMISC flag is set, promiscuous | |
1296 | * mode is acitviated. Otherwise, promiscuous mode is | |
1297 | * turned off. If the IFF_ALLMULTI flag is set, then | |
1298 | * the hash table is set to receive all group addresses. | |
1299 | * Otherwise, the first three multicast addresses are | |
1300 | * stored in AREG_1-3, and the rest are selected via the | |
1301 | * hash table, as necessary. | |
1302 | * | |
1303 | **************************************************************/ | |
1304 | ||
1305 | static void TLan_SetMulticastList( struct net_device *dev ) | |
6aa20a22 | 1306 | { |
1da177e4 LT |
1307 | struct dev_mc_list *dmi = dev->mc_list; |
1308 | u32 hash1 = 0; | |
1309 | u32 hash2 = 0; | |
1310 | int i; | |
1311 | u32 offset; | |
1312 | u8 tmp; | |
1313 | ||
1314 | if ( dev->flags & IFF_PROMISC ) { | |
1315 | tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD ); | |
1316 | TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp | TLAN_NET_CMD_CAF ); | |
1317 | } else { | |
1318 | tmp = TLan_DioRead8( dev->base_addr, TLAN_NET_CMD ); | |
1319 | TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, tmp & ~TLAN_NET_CMD_CAF ); | |
1320 | if ( dev->flags & IFF_ALLMULTI ) { | |
6aa20a22 | 1321 | for ( i = 0; i < 3; i++ ) |
1da177e4 LT |
1322 | TLan_SetMac( dev, i + 1, NULL ); |
1323 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, 0xFFFFFFFF ); | |
1324 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, 0xFFFFFFFF ); | |
1325 | } else { | |
1326 | for ( i = 0; i < dev->mc_count; i++ ) { | |
1327 | if ( i < 3 ) { | |
1328 | TLan_SetMac( dev, i + 1, (char *) &dmi->dmi_addr ); | |
1329 | } else { | |
1330 | offset = TLan_HashFunc( (u8 *) &dmi->dmi_addr ); | |
6aa20a22 | 1331 | if ( offset < 32 ) |
1da177e4 LT |
1332 | hash1 |= ( 1 << offset ); |
1333 | else | |
1334 | hash2 |= ( 1 << ( offset - 32 ) ); | |
1335 | } | |
1336 | dmi = dmi->next; | |
1337 | } | |
6aa20a22 | 1338 | for ( ; i < 3; i++ ) |
1da177e4 LT |
1339 | TLan_SetMac( dev, i + 1, NULL ); |
1340 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_1, hash1 ); | |
1341 | TLan_DioWrite32( dev->base_addr, TLAN_HASH_2, hash2 ); | |
1342 | } | |
1343 | } | |
1344 | ||
1345 | } /* TLan_SetMulticastList */ | |
1346 | ||
1347 | ||
1348 | ||
1349 | /***************************************************************************** | |
1350 | ****************************************************************************** | |
1351 | ||
1352 | ThunderLAN Driver Interrupt Vectors and Table | |
1353 | ||
1354 | Please see Chap. 4, "Interrupt Handling" of the "ThunderLAN | |
1355 | Programmer's Guide" for more informations on handling interrupts | |
6aa20a22 | 1356 | generated by TLAN based adapters. |
1da177e4 LT |
1357 | |
1358 | ****************************************************************************** | |
1359 | *****************************************************************************/ | |
1360 | ||
1361 | ||
1362 | /*************************************************************** | |
1363 | * TLan_HandleInvalid | |
1364 | * | |
1365 | * Returns: | |
1366 | * 0 | |
1367 | * Parms: | |
1368 | * dev Device assigned the IRQ that was | |
1369 | * raised. | |
1370 | * host_int The contents of the HOST_INT | |
1371 | * port. | |
1372 | * | |
1373 | * This function handles invalid interrupts. This should | |
1374 | * never happen unless some other adapter is trying to use | |
1375 | * the IRQ line assigned to the device. | |
1376 | * | |
1377 | **************************************************************/ | |
1378 | ||
98e0f521 | 1379 | static u32 TLan_HandleInvalid( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1380 | { |
1381 | /* printk( "TLAN: Invalid interrupt on %s.\n", dev->name ); */ | |
1382 | return 0; | |
1383 | ||
1384 | } /* TLan_HandleInvalid */ | |
1385 | ||
1386 | ||
1387 | ||
1388 | ||
1389 | /*************************************************************** | |
1390 | * TLan_HandleTxEOF | |
1391 | * | |
1392 | * Returns: | |
1393 | * 1 | |
1394 | * Parms: | |
1395 | * dev Device assigned the IRQ that was | |
1396 | * raised. | |
1397 | * host_int The contents of the HOST_INT | |
1398 | * port. | |
1399 | * | |
1400 | * This function handles Tx EOF interrupts which are raised | |
1401 | * by the adapter when it has completed sending the | |
1402 | * contents of a buffer. If detemines which list/buffer | |
1403 | * was completed and resets it. If the buffer was the last | |
1404 | * in the channel (EOC), then the function checks to see if | |
1405 | * another buffer is ready to send, and if so, sends a Tx | |
1406 | * Go command. Finally, the driver activates/continues the | |
1407 | * activity LED. | |
1408 | * | |
1409 | **************************************************************/ | |
1410 | ||
98e0f521 | 1411 | static u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1412 | { |
1413 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1414 | int eoc = 0; | |
1415 | TLanList *head_list; | |
1416 | dma_addr_t head_list_phys; | |
1417 | u32 ack = 0; | |
1418 | u16 tmpCStat; | |
6aa20a22 | 1419 | |
1da177e4 LT |
1420 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOF (Head=%d Tail=%d)\n", priv->txHead, priv->txTail ); |
1421 | head_list = priv->txList + priv->txHead; | |
1422 | ||
1423 | while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { | |
1424 | ack++; | |
1425 | if ( ! bbuf ) { | |
1426 | struct sk_buff *skb = TLan_GetSKB(head_list); | |
1427 | pci_unmap_single(priv->pciDev, head_list->buffer[0].address, skb->len, PCI_DMA_TODEVICE); | |
1428 | dev_kfree_skb_any(skb); | |
1429 | head_list->buffer[8].address = 0; | |
1430 | head_list->buffer[9].address = 0; | |
1431 | } | |
6aa20a22 | 1432 | |
1da177e4 LT |
1433 | if ( tmpCStat & TLAN_CSTAT_EOC ) |
1434 | eoc = 1; | |
6aa20a22 | 1435 | |
f8f31544 | 1436 | dev->stats.tx_bytes += head_list->frameSize; |
1da177e4 LT |
1437 | |
1438 | head_list->cStat = TLAN_CSTAT_UNUSED; | |
6aa20a22 JG |
1439 | netif_start_queue(dev); |
1440 | CIRC_INC( priv->txHead, TLAN_NUM_TX_LISTS ); | |
1da177e4 LT |
1441 | head_list = priv->txList + priv->txHead; |
1442 | } | |
1443 | ||
1444 | if (!ack) | |
1445 | printk(KERN_INFO "TLAN: Received interrupt for uncompleted TX frame.\n"); | |
6aa20a22 | 1446 | |
1da177e4 LT |
1447 | if ( eoc ) { |
1448 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d)\n", priv->txHead, priv->txTail ); | |
1449 | head_list = priv->txList + priv->txHead; | |
1450 | head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; | |
1451 | if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { | |
1452 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM ); | |
1453 | ack |= TLAN_HC_GO; | |
1454 | } else { | |
1455 | priv->txInProgress = 0; | |
1456 | } | |
1457 | } | |
6aa20a22 | 1458 | |
1da177e4 LT |
1459 | if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) { |
1460 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT ); | |
1461 | if ( priv->timer.function == NULL ) { | |
1462 | priv->timer.function = &TLan_Timer; | |
1463 | priv->timer.data = (unsigned long) dev; | |
1464 | priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; | |
1465 | priv->timerSetAt = jiffies; | |
1466 | priv->timerType = TLAN_TIMER_ACTIVITY; | |
1467 | add_timer(&priv->timer); | |
1468 | } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) { | |
1469 | priv->timerSetAt = jiffies; | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | return ack; | |
1474 | ||
1475 | } /* TLan_HandleTxEOF */ | |
1476 | ||
1477 | ||
1478 | ||
1479 | ||
1480 | /*************************************************************** | |
1481 | * TLan_HandleStatOverflow | |
1482 | * | |
1483 | * Returns: | |
1484 | * 1 | |
1485 | * Parms: | |
1486 | * dev Device assigned the IRQ that was | |
1487 | * raised. | |
1488 | * host_int The contents of the HOST_INT | |
1489 | * port. | |
1490 | * | |
1491 | * This function handles the Statistics Overflow interrupt | |
1492 | * which means that one or more of the TLAN statistics | |
1493 | * registers has reached 1/2 capacity and needs to be read. | |
1494 | * | |
1495 | **************************************************************/ | |
1496 | ||
98e0f521 | 1497 | static u32 TLan_HandleStatOverflow( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1498 | { |
1499 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); | |
1500 | ||
1501 | return 1; | |
1502 | ||
1503 | } /* TLan_HandleStatOverflow */ | |
1504 | ||
1505 | ||
1506 | ||
1507 | ||
1508 | /*************************************************************** | |
1509 | * TLan_HandleRxEOF | |
1510 | * | |
1511 | * Returns: | |
1512 | * 1 | |
1513 | * Parms: | |
1514 | * dev Device assigned the IRQ that was | |
1515 | * raised. | |
1516 | * host_int The contents of the HOST_INT | |
1517 | * port. | |
1518 | * | |
1519 | * This function handles the Rx EOF interrupt which | |
1520 | * indicates a frame has been received by the adapter from | |
1521 | * the net and the frame has been transferred to memory. | |
1522 | * The function determines the bounce buffer the frame has | |
1523 | * been loaded into, creates a new sk_buff big enough to | |
1524 | * hold the frame, and sends it to protocol stack. It | |
1525 | * then resets the used buffer and appends it to the end | |
1526 | * of the list. If the frame was the last in the Rx | |
1527 | * channel (EOC), the function restarts the receive channel | |
1528 | * by sending an Rx Go command to the adapter. Then it | |
1529 | * activates/continues the activity LED. | |
1530 | * | |
1531 | **************************************************************/ | |
1532 | ||
98e0f521 | 1533 | static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1534 | { |
1535 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1536 | u32 ack = 0; | |
1537 | int eoc = 0; | |
1538 | u8 *head_buffer; | |
1539 | TLanList *head_list; | |
1540 | struct sk_buff *skb; | |
1541 | TLanList *tail_list; | |
1da177e4 LT |
1542 | u16 tmpCStat; |
1543 | dma_addr_t head_list_phys; | |
1544 | ||
1545 | TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOF (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail ); | |
1546 | head_list = priv->rxList + priv->rxHead; | |
1547 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; | |
6aa20a22 | 1548 | |
1da177e4 | 1549 | while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { |
9ded65a1 SH |
1550 | dma_addr_t frameDma = head_list->buffer[0].address; |
1551 | u32 frameSize = head_list->frameSize; | |
1da177e4 LT |
1552 | ack++; |
1553 | if (tmpCStat & TLAN_CSTAT_EOC) | |
1554 | eoc = 1; | |
6aa20a22 | 1555 | |
1da177e4 | 1556 | if (bbuf) { |
9ded65a1 SH |
1557 | skb = netdev_alloc_skb(dev, frameSize + 7); |
1558 | if ( skb ) { | |
1da177e4 | 1559 | head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE); |
1da177e4 | 1560 | skb_reserve(skb, 2); |
9ded65a1 SH |
1561 | pci_dma_sync_single_for_cpu(priv->pciDev, |
1562 | frameDma, frameSize, | |
1563 | PCI_DMA_FROMDEVICE); | |
1564 | skb_copy_from_linear_data(skb, head_buffer, frameSize); | |
1565 | skb_put(skb, frameSize); | |
1566 | dev->stats.rx_bytes += frameSize; | |
1da177e4 | 1567 | |
1da177e4 LT |
1568 | skb->protocol = eth_type_trans( skb, dev ); |
1569 | netif_rx( skb ); | |
1570 | } | |
1571 | } else { | |
1572 | struct sk_buff *new_skb; | |
6aa20a22 | 1573 | |
9ded65a1 SH |
1574 | new_skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); |
1575 | if ( new_skb ) { | |
1da177e4 | 1576 | skb = TLan_GetSKB(head_list); |
9ded65a1 | 1577 | pci_unmap_single(priv->pciDev, frameDma, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
93e16847 | 1578 | skb_put( skb, frameSize ); |
1da177e4 | 1579 | |
f8f31544 | 1580 | dev->stats.rx_bytes += frameSize; |
1da177e4 LT |
1581 | |
1582 | skb->protocol = eth_type_trans( skb, dev ); | |
1583 | netif_rx( skb ); | |
6aa20a22 | 1584 | |
9ded65a1 | 1585 | skb_reserve( new_skb, NET_IP_ALIGN ); |
1da177e4 | 1586 | head_list->buffer[0].address = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
93e16847 | 1587 | |
1da177e4 | 1588 | TLan_StoreSKB(head_list, new_skb); |
9ded65a1 SH |
1589 | } |
1590 | ||
1da177e4 LT |
1591 | } |
1592 | ||
1593 | head_list->forward = 0; | |
1594 | head_list->cStat = 0; | |
1595 | tail_list = priv->rxList + priv->rxTail; | |
1596 | tail_list->forward = head_list_phys; | |
1597 | ||
1598 | CIRC_INC( priv->rxHead, TLAN_NUM_RX_LISTS ); | |
1599 | CIRC_INC( priv->rxTail, TLAN_NUM_RX_LISTS ); | |
1600 | head_list = priv->rxList + priv->rxHead; | |
1601 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; | |
1602 | } | |
1603 | ||
1604 | if (!ack) | |
1605 | printk(KERN_INFO "TLAN: Received interrupt for uncompleted RX frame.\n"); | |
1da177e4 LT |
1606 | |
1607 | ||
1608 | ||
6aa20a22 JG |
1609 | |
1610 | if ( eoc ) { | |
1da177e4 LT |
1611 | TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d)\n", priv->rxHead, priv->rxTail ); |
1612 | head_list = priv->rxList + priv->rxHead; | |
1613 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; | |
1614 | outl(head_list_phys, dev->base_addr + TLAN_CH_PARM ); | |
1615 | ack |= TLAN_HC_GO | TLAN_HC_RT; | |
1616 | priv->rxEocCount++; | |
1617 | } | |
1618 | ||
1619 | if ( priv->adapter->flags & TLAN_ADAPTER_ACTIVITY_LED ) { | |
1620 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT ); | |
1621 | if ( priv->timer.function == NULL ) { | |
1622 | priv->timer.function = &TLan_Timer; | |
1623 | priv->timer.data = (unsigned long) dev; | |
1624 | priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY; | |
1625 | priv->timerSetAt = jiffies; | |
1626 | priv->timerType = TLAN_TIMER_ACTIVITY; | |
1627 | add_timer(&priv->timer); | |
1628 | } else if ( priv->timerType == TLAN_TIMER_ACTIVITY ) { | |
1629 | priv->timerSetAt = jiffies; | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | dev->last_rx = jiffies; | |
6aa20a22 | 1634 | |
1da177e4 LT |
1635 | return ack; |
1636 | ||
1637 | } /* TLan_HandleRxEOF */ | |
1638 | ||
1639 | ||
1640 | ||
1641 | ||
1642 | /*************************************************************** | |
1643 | * TLan_HandleDummy | |
1644 | * | |
1645 | * Returns: | |
1646 | * 1 | |
1647 | * Parms: | |
1648 | * dev Device assigned the IRQ that was | |
1649 | * raised. | |
1650 | * host_int The contents of the HOST_INT | |
1651 | * port. | |
1652 | * | |
1653 | * This function handles the Dummy interrupt, which is | |
1654 | * raised whenever a test interrupt is generated by setting | |
1655 | * the Req_Int bit of HOST_CMD to 1. | |
1656 | * | |
1657 | **************************************************************/ | |
1658 | ||
98e0f521 | 1659 | static u32 TLan_HandleDummy( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1660 | { |
1661 | printk( "TLAN: Test interrupt on %s.\n", dev->name ); | |
1662 | return 1; | |
1663 | ||
1664 | } /* TLan_HandleDummy */ | |
1665 | ||
1666 | ||
1667 | ||
1668 | ||
1669 | /*************************************************************** | |
1670 | * TLan_HandleTxEOC | |
1671 | * | |
1672 | * Returns: | |
1673 | * 1 | |
1674 | * Parms: | |
1675 | * dev Device assigned the IRQ that was | |
1676 | * raised. | |
1677 | * host_int The contents of the HOST_INT | |
1678 | * port. | |
1679 | * | |
1680 | * This driver is structured to determine EOC occurrences by | |
1681 | * reading the CSTAT member of the list structure. Tx EOC | |
1682 | * interrupts are disabled via the DIO INTDIS register. | |
1683 | * However, TLAN chips before revision 3.0 didn't have this | |
1684 | * functionality, so process EOC events if this is the | |
1685 | * case. | |
1686 | * | |
1687 | **************************************************************/ | |
1688 | ||
98e0f521 | 1689 | static u32 TLan_HandleTxEOC( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1690 | { |
1691 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1692 | TLanList *head_list; | |
1693 | dma_addr_t head_list_phys; | |
1694 | u32 ack = 1; | |
6aa20a22 | 1695 | |
1da177e4 LT |
1696 | host_int = 0; |
1697 | if ( priv->tlanRev < 0x30 ) { | |
1698 | TLAN_DBG( TLAN_DEBUG_TX, "TRANSMIT: Handling TX EOC (Head=%d Tail=%d) -- IRQ\n", priv->txHead, priv->txTail ); | |
1699 | head_list = priv->txList + priv->txHead; | |
1700 | head_list_phys = priv->txListDMA + sizeof(TLanList) * priv->txHead; | |
1701 | if ( ( head_list->cStat & TLAN_CSTAT_READY ) == TLAN_CSTAT_READY ) { | |
1702 | netif_stop_queue(dev); | |
1703 | outl( head_list_phys, dev->base_addr + TLAN_CH_PARM ); | |
1704 | ack |= TLAN_HC_GO; | |
1705 | } else { | |
1706 | priv->txInProgress = 0; | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | return ack; | |
1711 | ||
1712 | } /* TLan_HandleTxEOC */ | |
1713 | ||
1714 | ||
1715 | ||
1716 | ||
1717 | /*************************************************************** | |
1718 | * TLan_HandleStatusCheck | |
1719 | * | |
1720 | * Returns: | |
1721 | * 0 if Adapter check, 1 if Network Status check. | |
1722 | * Parms: | |
1723 | * dev Device assigned the IRQ that was | |
1724 | * raised. | |
1725 | * host_int The contents of the HOST_INT | |
1726 | * port. | |
1727 | * | |
1728 | * This function handles Adapter Check/Network Status | |
1729 | * interrupts generated by the adapter. It checks the | |
1730 | * vector in the HOST_INT register to determine if it is | |
1731 | * an Adapter Check interrupt. If so, it resets the | |
1732 | * adapter. Otherwise it clears the status registers | |
1733 | * and services the PHY. | |
1734 | * | |
1735 | **************************************************************/ | |
1736 | ||
98e0f521 | 1737 | static u32 TLan_HandleStatusCheck( struct net_device *dev, u16 host_int ) |
6aa20a22 | 1738 | { |
1da177e4 LT |
1739 | TLanPrivateInfo *priv = netdev_priv(dev); |
1740 | u32 ack; | |
1741 | u32 error; | |
1742 | u8 net_sts; | |
1743 | u32 phy; | |
1744 | u16 tlphy_ctl; | |
1745 | u16 tlphy_sts; | |
6aa20a22 | 1746 | |
1da177e4 LT |
1747 | ack = 1; |
1748 | if ( host_int & TLAN_HI_IV_MASK ) { | |
1749 | netif_stop_queue( dev ); | |
1750 | error = inl( dev->base_addr + TLAN_CH_PARM ); | |
1751 | printk( "TLAN: %s: Adaptor Error = 0x%x\n", dev->name, error ); | |
1752 | TLan_ReadAndClearStats( dev, TLAN_RECORD ); | |
1753 | outl( TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD ); | |
1754 | ||
1755 | schedule_work(&priv->tlan_tqueue); | |
1756 | ||
1757 | netif_wake_queue(dev); | |
1758 | ack = 0; | |
1759 | } else { | |
1760 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Status Check\n", dev->name ); | |
1761 | phy = priv->phy[priv->phyNum]; | |
1762 | ||
1763 | net_sts = TLan_DioRead8( dev->base_addr, TLAN_NET_STS ); | |
1764 | if ( net_sts ) { | |
1765 | TLan_DioWrite8( dev->base_addr, TLAN_NET_STS, net_sts ); | |
1766 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Net_Sts = %x\n", dev->name, (unsigned) net_sts ); | |
1767 | } | |
1768 | if ( ( net_sts & TLAN_NET_STS_MIRQ ) && ( priv->phyNum == 0 ) ) { | |
1769 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_STS, &tlphy_sts ); | |
1770 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl ); | |
1771 | if ( ! ( tlphy_sts & TLAN_TS_POLOK ) && ! ( tlphy_ctl & TLAN_TC_SWAPOL ) ) { | |
1772 | tlphy_ctl |= TLAN_TC_SWAPOL; | |
1773 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); | |
1774 | } else if ( ( tlphy_sts & TLAN_TS_POLOK ) && ( tlphy_ctl & TLAN_TC_SWAPOL ) ) { | |
1775 | tlphy_ctl &= ~TLAN_TC_SWAPOL; | |
1776 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl); | |
1777 | } | |
1778 | ||
1779 | if (debug) { | |
6aa20a22 | 1780 | TLan_PhyPrint( dev ); |
1da177e4 LT |
1781 | } |
1782 | } | |
1783 | } | |
1784 | ||
1785 | return ack; | |
1786 | ||
1787 | } /* TLan_HandleStatusCheck */ | |
1788 | ||
1789 | ||
1790 | ||
1791 | ||
1792 | /*************************************************************** | |
1793 | * TLan_HandleRxEOC | |
1794 | * | |
1795 | * Returns: | |
1796 | * 1 | |
1797 | * Parms: | |
1798 | * dev Device assigned the IRQ that was | |
1799 | * raised. | |
1800 | * host_int The contents of the HOST_INT | |
1801 | * port. | |
1802 | * | |
1803 | * This driver is structured to determine EOC occurrences by | |
1804 | * reading the CSTAT member of the list structure. Rx EOC | |
1805 | * interrupts are disabled via the DIO INTDIS register. | |
1806 | * However, TLAN chips before revision 3.0 didn't have this | |
1807 | * CSTAT member or a INTDIS register, so if this chip is | |
1808 | * pre-3.0, process EOC interrupts normally. | |
1809 | * | |
1810 | **************************************************************/ | |
1811 | ||
98e0f521 | 1812 | static u32 TLan_HandleRxEOC( struct net_device *dev, u16 host_int ) |
1da177e4 LT |
1813 | { |
1814 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1815 | dma_addr_t head_list_phys; | |
1816 | u32 ack = 1; | |
1817 | ||
1818 | if ( priv->tlanRev < 0x30 ) { | |
1819 | TLAN_DBG( TLAN_DEBUG_RX, "RECEIVE: Handling RX EOC (Head=%d Tail=%d) -- IRQ\n", priv->rxHead, priv->rxTail ); | |
1820 | head_list_phys = priv->rxListDMA + sizeof(TLanList) * priv->rxHead; | |
1821 | outl( head_list_phys, dev->base_addr + TLAN_CH_PARM ); | |
1822 | ack |= TLAN_HC_GO | TLAN_HC_RT; | |
1823 | priv->rxEocCount++; | |
1824 | } | |
1825 | ||
1826 | return ack; | |
1827 | ||
1828 | } /* TLan_HandleRxEOC */ | |
1829 | ||
1830 | ||
1831 | ||
1832 | ||
1833 | /***************************************************************************** | |
1834 | ****************************************************************************** | |
1835 | ||
1836 | ThunderLAN Driver Timer Function | |
1837 | ||
1838 | ****************************************************************************** | |
1839 | *****************************************************************************/ | |
1840 | ||
1841 | ||
1842 | /*************************************************************** | |
1843 | * TLan_Timer | |
1844 | * | |
1845 | * Returns: | |
1846 | * Nothing | |
1847 | * Parms: | |
1848 | * data A value given to add timer when | |
1849 | * add_timer was called. | |
1850 | * | |
1851 | * This function handles timed functionality for the | |
1852 | * TLAN driver. The two current timer uses are for | |
1853 | * delaying for autonegotionation and driving the ACT LED. | |
1854 | * - Autonegotiation requires being allowed about | |
1855 | * 2 1/2 seconds before attempting to transmit a | |
1856 | * packet. It would be a very bad thing to hang | |
1857 | * the kernel this long, so the driver doesn't | |
1858 | * allow transmission 'til after this time, for | |
1859 | * certain PHYs. It would be much nicer if all | |
1860 | * PHYs were interrupt-capable like the internal | |
1861 | * PHY. | |
1862 | * - The ACT LED, which shows adapter activity, is | |
1863 | * driven by the driver, and so must be left on | |
1864 | * for a short period to power up the LED so it | |
1865 | * can be seen. This delay can be changed by | |
1866 | * changing the TLAN_TIMER_ACT_DELAY in tlan.h, | |
1867 | * if desired. 100 ms produces a slightly | |
1868 | * sluggish response. | |
1869 | * | |
1870 | **************************************************************/ | |
1871 | ||
98e0f521 | 1872 | static void TLan_Timer( unsigned long data ) |
1da177e4 LT |
1873 | { |
1874 | struct net_device *dev = (struct net_device *) data; | |
1875 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1876 | u32 elapsed; | |
1877 | unsigned long flags = 0; | |
1878 | ||
1879 | priv->timer.function = NULL; | |
1880 | ||
1881 | switch ( priv->timerType ) { | |
6aa20a22 | 1882 | #ifdef MONITOR |
1da177e4 LT |
1883 | case TLAN_TIMER_LINK_BEAT: |
1884 | TLan_PhyMonitor( dev ); | |
1885 | break; | |
1886 | #endif | |
1887 | case TLAN_TIMER_PHY_PDOWN: | |
1888 | TLan_PhyPowerDown( dev ); | |
1889 | break; | |
1890 | case TLAN_TIMER_PHY_PUP: | |
1891 | TLan_PhyPowerUp( dev ); | |
1892 | break; | |
1893 | case TLAN_TIMER_PHY_RESET: | |
1894 | TLan_PhyReset( dev ); | |
1895 | break; | |
1896 | case TLAN_TIMER_PHY_START_LINK: | |
1897 | TLan_PhyStartLink( dev ); | |
1898 | break; | |
1899 | case TLAN_TIMER_PHY_FINISH_AN: | |
1900 | TLan_PhyFinishAutoNeg( dev ); | |
1901 | break; | |
1902 | case TLAN_TIMER_FINISH_RESET: | |
1903 | TLan_FinishReset( dev ); | |
1904 | break; | |
1905 | case TLAN_TIMER_ACTIVITY: | |
1906 | spin_lock_irqsave(&priv->lock, flags); | |
1907 | if ( priv->timer.function == NULL ) { | |
1908 | elapsed = jiffies - priv->timerSetAt; | |
1909 | if ( elapsed >= TLAN_TIMER_ACT_DELAY ) { | |
1910 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); | |
1911 | } else { | |
1912 | priv->timer.function = &TLan_Timer; | |
1913 | priv->timer.expires = priv->timerSetAt + TLAN_TIMER_ACT_DELAY; | |
1914 | spin_unlock_irqrestore(&priv->lock, flags); | |
1915 | add_timer( &priv->timer ); | |
1916 | break; | |
1917 | } | |
1918 | } | |
1919 | spin_unlock_irqrestore(&priv->lock, flags); | |
1920 | break; | |
1921 | default: | |
1922 | break; | |
1923 | } | |
1924 | ||
1925 | } /* TLan_Timer */ | |
1926 | ||
1927 | ||
1928 | ||
1929 | ||
1930 | /***************************************************************************** | |
1931 | ****************************************************************************** | |
1932 | ||
1933 | ThunderLAN Driver Adapter Related Routines | |
1934 | ||
1935 | ****************************************************************************** | |
1936 | *****************************************************************************/ | |
1937 | ||
1938 | ||
1939 | /*************************************************************** | |
1940 | * TLan_ResetLists | |
6aa20a22 | 1941 | * |
1da177e4 LT |
1942 | * Returns: |
1943 | * Nothing | |
1944 | * Parms: | |
1945 | * dev The device structure with the list | |
1946 | * stuctures to be reset. | |
1947 | * | |
1948 | * This routine sets the variables associated with managing | |
1949 | * the TLAN lists to their initial values. | |
1950 | * | |
1951 | **************************************************************/ | |
1952 | ||
98e0f521 | 1953 | static void TLan_ResetLists( struct net_device *dev ) |
1da177e4 LT |
1954 | { |
1955 | TLanPrivateInfo *priv = netdev_priv(dev); | |
1956 | int i; | |
1957 | TLanList *list; | |
1958 | dma_addr_t list_phys; | |
1959 | struct sk_buff *skb; | |
1960 | void *t = NULL; | |
1961 | ||
1962 | priv->txHead = 0; | |
1963 | priv->txTail = 0; | |
1964 | for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { | |
1965 | list = priv->txList + i; | |
1966 | list->cStat = TLAN_CSTAT_UNUSED; | |
1967 | if ( bbuf ) { | |
1968 | list->buffer[0].address = priv->txBufferDMA + ( i * TLAN_MAX_FRAME_SIZE ); | |
1969 | } else { | |
1970 | list->buffer[0].address = 0; | |
1971 | } | |
1972 | list->buffer[2].count = 0; | |
1973 | list->buffer[2].address = 0; | |
1974 | list->buffer[8].address = 0; | |
1975 | list->buffer[9].address = 0; | |
1976 | } | |
1977 | ||
1978 | priv->rxHead = 0; | |
1979 | priv->rxTail = TLAN_NUM_RX_LISTS - 1; | |
1980 | for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { | |
1981 | list = priv->rxList + i; | |
1982 | list_phys = priv->rxListDMA + sizeof(TLanList) * i; | |
1983 | list->cStat = TLAN_CSTAT_READY; | |
1984 | list->frameSize = TLAN_MAX_FRAME_SIZE; | |
1985 | list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER; | |
1986 | if ( bbuf ) { | |
1987 | list->buffer[0].address = priv->rxBufferDMA + ( i * TLAN_MAX_FRAME_SIZE ); | |
1988 | } else { | |
9ded65a1 SH |
1989 | skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); |
1990 | if ( !skb ) { | |
1da177e4 | 1991 | printk( "TLAN: Couldn't allocate memory for received data.\n" ); |
9ded65a1 | 1992 | break; |
1da177e4 | 1993 | } |
9ded65a1 SH |
1994 | |
1995 | skb_reserve( skb, NET_IP_ALIGN ); | |
1da177e4 | 1996 | list->buffer[0].address = pci_map_single(priv->pciDev, t, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); |
1da177e4 LT |
1997 | TLan_StoreSKB(list, skb); |
1998 | } | |
1999 | list->buffer[1].count = 0; | |
2000 | list->buffer[1].address = 0; | |
9ded65a1 SH |
2001 | list->forward = list_phys + sizeof(TLanList); |
2002 | } | |
2003 | ||
2004 | /* in case ran out of memory early, clear bits */ | |
2005 | while (i < TLAN_NUM_RX_LISTS) { | |
2006 | TLan_StoreSKB(priv->rxList + i, NULL); | |
2007 | ++i; | |
1da177e4 | 2008 | } |
9ded65a1 | 2009 | list->forward = 0; |
1da177e4 LT |
2010 | |
2011 | } /* TLan_ResetLists */ | |
2012 | ||
2013 | ||
98e0f521 | 2014 | static void TLan_FreeLists( struct net_device *dev ) |
1da177e4 LT |
2015 | { |
2016 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2017 | int i; | |
2018 | TLanList *list; | |
2019 | struct sk_buff *skb; | |
2020 | ||
2021 | if ( ! bbuf ) { | |
2022 | for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { | |
2023 | list = priv->txList + i; | |
2024 | skb = TLan_GetSKB(list); | |
2025 | if ( skb ) { | |
2026 | pci_unmap_single(priv->pciDev, list->buffer[0].address, skb->len, PCI_DMA_TODEVICE); | |
2027 | dev_kfree_skb_any( skb ); | |
2028 | list->buffer[8].address = 0; | |
2029 | list->buffer[9].address = 0; | |
2030 | } | |
2031 | } | |
2032 | ||
2033 | for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { | |
2034 | list = priv->rxList + i; | |
2035 | skb = TLan_GetSKB(list); | |
2036 | if ( skb ) { | |
2037 | pci_unmap_single(priv->pciDev, list->buffer[0].address, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); | |
2038 | dev_kfree_skb_any( skb ); | |
2039 | list->buffer[8].address = 0; | |
2040 | list->buffer[9].address = 0; | |
2041 | } | |
2042 | } | |
2043 | } | |
2044 | } /* TLan_FreeLists */ | |
2045 | ||
2046 | ||
2047 | ||
2048 | ||
2049 | /*************************************************************** | |
2050 | * TLan_PrintDio | |
6aa20a22 | 2051 | * |
1da177e4 LT |
2052 | * Returns: |
2053 | * Nothing | |
2054 | * Parms: | |
2055 | * io_base Base IO port of the device of | |
2056 | * which to print DIO registers. | |
2057 | * | |
2058 | * This function prints out all the internal (DIO) | |
2059 | * registers of a TLAN chip. | |
2060 | * | |
2061 | **************************************************************/ | |
2062 | ||
98e0f521 | 2063 | static void TLan_PrintDio( u16 io_base ) |
1da177e4 LT |
2064 | { |
2065 | u32 data0, data1; | |
2066 | int i; | |
2067 | ||
2068 | printk( "TLAN: Contents of internal registers for io base 0x%04hx.\n", io_base ); | |
2069 | printk( "TLAN: Off. +0 +4\n" ); | |
2070 | for ( i = 0; i < 0x4C; i+= 8 ) { | |
2071 | data0 = TLan_DioRead32( io_base, i ); | |
2072 | data1 = TLan_DioRead32( io_base, i + 0x4 ); | |
2073 | printk( "TLAN: 0x%02x 0x%08x 0x%08x\n", i, data0, data1 ); | |
2074 | } | |
2075 | ||
2076 | } /* TLan_PrintDio */ | |
2077 | ||
2078 | ||
2079 | ||
2080 | ||
2081 | /*************************************************************** | |
2082 | * TLan_PrintList | |
6aa20a22 | 2083 | * |
1da177e4 LT |
2084 | * Returns: |
2085 | * Nothing | |
2086 | * Parms: | |
2087 | * list A pointer to the TLanList structure to | |
2088 | * be printed. | |
2089 | * type A string to designate type of list, | |
2090 | * "Rx" or "Tx". | |
2091 | * num The index of the list. | |
2092 | * | |
2093 | * This function prints out the contents of the list | |
2094 | * pointed to by the list parameter. | |
2095 | * | |
2096 | **************************************************************/ | |
2097 | ||
98e0f521 | 2098 | static void TLan_PrintList( TLanList *list, char *type, int num) |
1da177e4 LT |
2099 | { |
2100 | int i; | |
2101 | ||
93e16847 | 2102 | printk( "TLAN: %s List %d at %p\n", type, num, list ); |
1da177e4 LT |
2103 | printk( "TLAN: Forward = 0x%08x\n", list->forward ); |
2104 | printk( "TLAN: CSTAT = 0x%04hx\n", list->cStat ); | |
2105 | printk( "TLAN: Frame Size = 0x%04hx\n", list->frameSize ); | |
2106 | /* for ( i = 0; i < 10; i++ ) { */ | |
2107 | for ( i = 0; i < 2; i++ ) { | |
2108 | printk( "TLAN: Buffer[%d].count, addr = 0x%08x, 0x%08x\n", i, list->buffer[i].count, list->buffer[i].address ); | |
2109 | } | |
2110 | ||
2111 | } /* TLan_PrintList */ | |
2112 | ||
2113 | ||
2114 | ||
2115 | ||
2116 | /*************************************************************** | |
2117 | * TLan_ReadAndClearStats | |
2118 | * | |
2119 | * Returns: | |
2120 | * Nothing | |
2121 | * Parms: | |
2122 | * dev Pointer to device structure of adapter | |
2123 | * to which to read stats. | |
6aa20a22 | 2124 | * record Flag indicating whether to add |
1da177e4 LT |
2125 | * |
2126 | * This functions reads all the internal status registers | |
2127 | * of the TLAN chip, which clears them as a side effect. | |
2128 | * It then either adds the values to the device's status | |
2129 | * struct, or discards them, depending on whether record | |
2130 | * is TLAN_RECORD (!=0) or TLAN_IGNORE (==0). | |
2131 | * | |
2132 | **************************************************************/ | |
2133 | ||
98e0f521 | 2134 | static void TLan_ReadAndClearStats( struct net_device *dev, int record ) |
1da177e4 | 2135 | { |
1da177e4 LT |
2136 | u32 tx_good, tx_under; |
2137 | u32 rx_good, rx_over; | |
2138 | u32 def_tx, crc, code; | |
2139 | u32 multi_col, single_col; | |
2140 | u32 excess_col, late_col, loss; | |
2141 | ||
2142 | outw( TLAN_GOOD_TX_FRMS, dev->base_addr + TLAN_DIO_ADR ); | |
2143 | tx_good = inb( dev->base_addr + TLAN_DIO_DATA ); | |
2144 | tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; | |
2145 | tx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16; | |
2146 | tx_under = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); | |
2147 | ||
2148 | outw( TLAN_GOOD_RX_FRMS, dev->base_addr + TLAN_DIO_ADR ); | |
2149 | rx_good = inb( dev->base_addr + TLAN_DIO_DATA ); | |
2150 | rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; | |
2151 | rx_good += inb( dev->base_addr + TLAN_DIO_DATA + 2 ) << 16; | |
2152 | rx_over = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); | |
6aa20a22 | 2153 | |
1da177e4 LT |
2154 | outw( TLAN_DEFERRED_TX, dev->base_addr + TLAN_DIO_ADR ); |
2155 | def_tx = inb( dev->base_addr + TLAN_DIO_DATA ); | |
2156 | def_tx += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; | |
2157 | crc = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); | |
2158 | code = inb( dev->base_addr + TLAN_DIO_DATA + 3 ); | |
6aa20a22 | 2159 | |
1da177e4 LT |
2160 | outw( TLAN_MULTICOL_FRMS, dev->base_addr + TLAN_DIO_ADR ); |
2161 | multi_col = inb( dev->base_addr + TLAN_DIO_DATA ); | |
2162 | multi_col += inb( dev->base_addr + TLAN_DIO_DATA + 1 ) << 8; | |
2163 | single_col = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); | |
2164 | single_col += inb( dev->base_addr + TLAN_DIO_DATA + 3 ) << 8; | |
2165 | ||
2166 | outw( TLAN_EXCESSCOL_FRMS, dev->base_addr + TLAN_DIO_ADR ); | |
2167 | excess_col = inb( dev->base_addr + TLAN_DIO_DATA ); | |
2168 | late_col = inb( dev->base_addr + TLAN_DIO_DATA + 1 ); | |
2169 | loss = inb( dev->base_addr + TLAN_DIO_DATA + 2 ); | |
2170 | ||
2171 | if ( record ) { | |
f8f31544 SH |
2172 | dev->stats.rx_packets += rx_good; |
2173 | dev->stats.rx_errors += rx_over + crc + code; | |
2174 | dev->stats.tx_packets += tx_good; | |
2175 | dev->stats.tx_errors += tx_under + loss; | |
2176 | dev->stats.collisions += multi_col + single_col + excess_col + late_col; | |
2177 | ||
2178 | dev->stats.rx_over_errors += rx_over; | |
2179 | dev->stats.rx_crc_errors += crc; | |
2180 | dev->stats.rx_frame_errors += code; | |
2181 | ||
2182 | dev->stats.tx_aborted_errors += tx_under; | |
2183 | dev->stats.tx_carrier_errors += loss; | |
1da177e4 | 2184 | } |
6aa20a22 | 2185 | |
1da177e4 LT |
2186 | } /* TLan_ReadAndClearStats */ |
2187 | ||
2188 | ||
2189 | ||
2190 | ||
2191 | /*************************************************************** | |
2192 | * TLan_Reset | |
2193 | * | |
2194 | * Returns: | |
2195 | * 0 | |
2196 | * Parms: | |
2197 | * dev Pointer to device structure of adapter | |
2198 | * to be reset. | |
2199 | * | |
2200 | * This function resets the adapter and it's physical | |
2201 | * device. See Chap. 3, pp. 9-10 of the "ThunderLAN | |
2202 | * Programmer's Guide" for details. The routine tries to | |
2203 | * implement what is detailed there, though adjustments | |
2204 | * have been made. | |
2205 | * | |
2206 | **************************************************************/ | |
2207 | ||
98e0f521 | 2208 | static void |
1da177e4 LT |
2209 | TLan_ResetAdapter( struct net_device *dev ) |
2210 | { | |
2211 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2212 | int i; | |
2213 | u32 addr; | |
2214 | u32 data; | |
2215 | u8 data8; | |
2216 | ||
2217 | priv->tlanFullDuplex = FALSE; | |
2218 | priv->phyOnline=0; | |
2219 | netif_carrier_off(dev); | |
2220 | ||
2221 | /* 1. Assert reset bit. */ | |
2222 | ||
2223 | data = inl(dev->base_addr + TLAN_HOST_CMD); | |
2224 | data |= TLAN_HC_AD_RST; | |
2225 | outl(data, dev->base_addr + TLAN_HOST_CMD); | |
6aa20a22 | 2226 | |
1da177e4 LT |
2227 | udelay(1000); |
2228 | ||
2229 | /* 2. Turn off interrupts. ( Probably isn't necessary ) */ | |
2230 | ||
2231 | data = inl(dev->base_addr + TLAN_HOST_CMD); | |
2232 | data |= TLAN_HC_INT_OFF; | |
2233 | outl(data, dev->base_addr + TLAN_HOST_CMD); | |
2234 | ||
2235 | /* 3. Clear AREGs and HASHs. */ | |
2236 | ||
2237 | for ( i = TLAN_AREG_0; i <= TLAN_HASH_2; i += 4 ) { | |
2238 | TLan_DioWrite32( dev->base_addr, (u16) i, 0 ); | |
2239 | } | |
2240 | ||
2241 | /* 4. Setup NetConfig register. */ | |
2242 | ||
2243 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; | |
2244 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data ); | |
2245 | ||
2246 | /* 5. Load Ld_Tmr and Ld_Thr in HOST_CMD. */ | |
2247 | ||
2248 | outl( TLAN_HC_LD_TMR | 0x3f, dev->base_addr + TLAN_HOST_CMD ); | |
2249 | outl( TLAN_HC_LD_THR | 0x9, dev->base_addr + TLAN_HOST_CMD ); | |
2250 | ||
2251 | /* 6. Unreset the MII by setting NMRST (in NetSio) to 1. */ | |
2252 | ||
2253 | outw( TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR ); | |
2254 | addr = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; | |
2255 | TLan_SetBit( TLAN_NET_SIO_NMRST, addr ); | |
2256 | ||
2257 | /* 7. Setup the remaining registers. */ | |
2258 | ||
2259 | if ( priv->tlanRev >= 0x30 ) { | |
2260 | data8 = TLAN_ID_TX_EOC | TLAN_ID_RX_EOC; | |
2261 | TLan_DioWrite8( dev->base_addr, TLAN_INT_DIS, data8 ); | |
2262 | } | |
2263 | TLan_PhyDetect( dev ); | |
2264 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN; | |
6aa20a22 | 2265 | |
1da177e4 LT |
2266 | if ( priv->adapter->flags & TLAN_ADAPTER_BIT_RATE_PHY ) { |
2267 | data |= TLAN_NET_CFG_BIT; | |
2268 | if ( priv->aui == 1 ) { | |
2269 | TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x0a ); | |
2270 | } else if ( priv->duplex == TLAN_DUPLEX_FULL ) { | |
2271 | TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x00 ); | |
2272 | priv->tlanFullDuplex = TRUE; | |
2273 | } else { | |
2274 | TLan_DioWrite8( dev->base_addr, TLAN_ACOMMIT, 0x08 ); | |
2275 | } | |
2276 | } | |
2277 | ||
2278 | if ( priv->phyNum == 0 ) { | |
2279 | data |= TLAN_NET_CFG_PHY_EN; | |
2280 | } | |
2281 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, (u16) data ); | |
2282 | ||
2283 | if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { | |
2284 | TLan_FinishReset( dev ); | |
2285 | } else { | |
2286 | TLan_PhyPowerDown( dev ); | |
2287 | } | |
2288 | ||
2289 | } /* TLan_ResetAdapter */ | |
2290 | ||
2291 | ||
2292 | ||
2293 | ||
98e0f521 | 2294 | static void |
1da177e4 LT |
2295 | TLan_FinishReset( struct net_device *dev ) |
2296 | { | |
2297 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2298 | u8 data; | |
2299 | u32 phy; | |
2300 | u8 sio; | |
2301 | u16 status; | |
2302 | u16 partner; | |
2303 | u16 tlphy_ctl; | |
2304 | u16 tlphy_par; | |
2305 | u16 tlphy_id1, tlphy_id2; | |
2306 | int i; | |
2307 | ||
2308 | phy = priv->phy[priv->phyNum]; | |
2309 | ||
2310 | data = TLAN_NET_CMD_NRESET | TLAN_NET_CMD_NWRAP; | |
2311 | if ( priv->tlanFullDuplex ) { | |
2312 | data |= TLAN_NET_CMD_DUPLEX; | |
2313 | } | |
2314 | TLan_DioWrite8( dev->base_addr, TLAN_NET_CMD, data ); | |
6aa20a22 | 2315 | data = TLAN_NET_MASK_MASK4 | TLAN_NET_MASK_MASK5; |
1da177e4 | 2316 | if ( priv->phyNum == 0 ) { |
6aa20a22 | 2317 | data |= TLAN_NET_MASK_MASK7; |
1da177e4 LT |
2318 | } |
2319 | TLan_DioWrite8( dev->base_addr, TLAN_NET_MASK, data ); | |
2320 | TLan_DioWrite16( dev->base_addr, TLAN_MAX_RX, ((1536)+7)&~7 ); | |
2321 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &tlphy_id1 ); | |
2322 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &tlphy_id2 ); | |
6aa20a22 | 2323 | |
1da177e4 LT |
2324 | if ( ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) || ( priv->aui ) ) { |
2325 | status = MII_GS_LINK; | |
2326 | printk( "TLAN: %s: Link forced.\n", dev->name ); | |
2327 | } else { | |
2328 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); | |
2329 | udelay( 1000 ); | |
2330 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); | |
6aa20a22 | 2331 | if ( (status & MII_GS_LINK) && /* We only support link info on Nat.Sem. PHY's */ |
1da177e4 LT |
2332 | (tlphy_id1 == NAT_SEM_ID1) && |
2333 | (tlphy_id2 == NAT_SEM_ID2) ) { | |
2334 | TLan_MiiReadReg( dev, phy, MII_AN_LPA, &partner ); | |
2335 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_PAR, &tlphy_par ); | |
6aa20a22 | 2336 | |
1da177e4 LT |
2337 | printk( "TLAN: %s: Link active with ", dev->name ); |
2338 | if (!(tlphy_par & TLAN_PHY_AN_EN_STAT)) { | |
6aa20a22 | 2339 | printk( "forced 10%sMbps %s-Duplex\n", |
1da177e4 LT |
2340 | tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", |
2341 | tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); | |
2342 | } else { | |
2343 | printk( "AutoNegotiation enabled, at 10%sMbps %s-Duplex\n", | |
2344 | tlphy_par & TLAN_PHY_SPEED_100 ? "" : "0", | |
2345 | tlphy_par & TLAN_PHY_DUPLEX_FULL ? "Full" : "Half"); | |
2346 | printk("TLAN: Partner capability: "); | |
2347 | for (i = 5; i <= 10; i++) | |
2348 | if (partner & (1<<i)) | |
2349 | printk("%s",media[i-5]); | |
2350 | printk("\n"); | |
2351 | } | |
2352 | ||
2353 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); | |
6aa20a22 | 2354 | #ifdef MONITOR |
1da177e4 LT |
2355 | /* We have link beat..for now anyway */ |
2356 | priv->link = 1; | |
2357 | /*Enabling link beat monitoring */ | |
2358 | TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_LINK_BEAT ); | |
6aa20a22 | 2359 | #endif |
1da177e4 LT |
2360 | } else if (status & MII_GS_LINK) { |
2361 | printk( "TLAN: %s: Link active\n", dev->name ); | |
2362 | TLan_DioWrite8( dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK ); | |
2363 | } | |
2364 | } | |
2365 | ||
2366 | if ( priv->phyNum == 0 ) { | |
2367 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tlphy_ctl ); | |
2368 | tlphy_ctl |= TLAN_TC_INTEN; | |
2369 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tlphy_ctl ); | |
2370 | sio = TLan_DioRead8( dev->base_addr, TLAN_NET_SIO ); | |
2371 | sio |= TLAN_NET_SIO_MINTEN; | |
2372 | TLan_DioWrite8( dev->base_addr, TLAN_NET_SIO, sio ); | |
2373 | } | |
2374 | ||
2375 | if ( status & MII_GS_LINK ) { | |
2376 | TLan_SetMac( dev, 0, dev->dev_addr ); | |
2377 | priv->phyOnline = 1; | |
2378 | outb( ( TLAN_HC_INT_ON >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 ); | |
2379 | if ( debug >= 1 && debug != TLAN_DEBUG_PROBE ) { | |
2380 | outb( ( TLAN_HC_REQ_INT >> 8 ), dev->base_addr + TLAN_HOST_CMD + 1 ); | |
2381 | } | |
2382 | outl( priv->rxListDMA, dev->base_addr + TLAN_CH_PARM ); | |
2383 | outl( TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD ); | |
2384 | netif_carrier_on(dev); | |
2385 | } else { | |
2386 | printk( "TLAN: %s: Link inactive, will retry in 10 secs...\n", dev->name ); | |
2387 | TLan_SetTimer( dev, (10*HZ), TLAN_TIMER_FINISH_RESET ); | |
2388 | return; | |
2389 | } | |
562faf46 | 2390 | TLan_SetMulticastList(dev); |
1da177e4 LT |
2391 | |
2392 | } /* TLan_FinishReset */ | |
2393 | ||
2394 | ||
2395 | ||
2396 | ||
2397 | /*************************************************************** | |
2398 | * TLan_SetMac | |
2399 | * | |
2400 | * Returns: | |
2401 | * Nothing | |
2402 | * Parms: | |
2403 | * dev Pointer to device structure of adapter | |
2404 | * on which to change the AREG. | |
2405 | * areg The AREG to set the address in (0 - 3). | |
2406 | * mac A pointer to an array of chars. Each | |
2407 | * element stores one byte of the address. | |
2408 | * IE, it isn't in ascii. | |
2409 | * | |
2410 | * This function transfers a MAC address to one of the | |
2411 | * TLAN AREGs (address registers). The TLAN chip locks | |
2412 | * the register on writing to offset 0 and unlocks the | |
2413 | * register after writing to offset 5. If NULL is passed | |
2414 | * in mac, then the AREG is filled with 0's. | |
2415 | * | |
2416 | **************************************************************/ | |
2417 | ||
98e0f521 | 2418 | static void TLan_SetMac( struct net_device *dev, int areg, char *mac ) |
1da177e4 LT |
2419 | { |
2420 | int i; | |
6aa20a22 | 2421 | |
1da177e4 LT |
2422 | areg *= 6; |
2423 | ||
2424 | if ( mac != NULL ) { | |
2425 | for ( i = 0; i < 6; i++ ) | |
2426 | TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, mac[i] ); | |
2427 | } else { | |
2428 | for ( i = 0; i < 6; i++ ) | |
2429 | TLan_DioWrite8( dev->base_addr, TLAN_AREG_0 + areg + i, 0 ); | |
2430 | } | |
2431 | ||
2432 | } /* TLan_SetMac */ | |
2433 | ||
2434 | ||
2435 | ||
2436 | ||
2437 | /***************************************************************************** | |
2438 | ****************************************************************************** | |
2439 | ||
2440 | ThunderLAN Driver PHY Layer Routines | |
2441 | ||
2442 | ****************************************************************************** | |
2443 | *****************************************************************************/ | |
2444 | ||
2445 | ||
2446 | ||
2447 | /********************************************************************* | |
2448 | * TLan_PhyPrint | |
2449 | * | |
2450 | * Returns: | |
2451 | * Nothing | |
2452 | * Parms: | |
2453 | * dev A pointer to the device structure of the | |
2454 | * TLAN device having the PHYs to be detailed. | |
6aa20a22 | 2455 | * |
1da177e4 LT |
2456 | * This function prints the registers a PHY (aka transceiver). |
2457 | * | |
2458 | ********************************************************************/ | |
2459 | ||
98e0f521 | 2460 | static void TLan_PhyPrint( struct net_device *dev ) |
1da177e4 LT |
2461 | { |
2462 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2463 | u16 i, data0, data1, data2, data3, phy; | |
2464 | ||
2465 | phy = priv->phy[priv->phyNum]; | |
2466 | ||
2467 | if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { | |
2468 | printk( "TLAN: Device %s, Unmanaged PHY.\n", dev->name ); | |
2469 | } else if ( phy <= TLAN_PHY_MAX_ADDR ) { | |
2470 | printk( "TLAN: Device %s, PHY 0x%02x.\n", dev->name, phy ); | |
2471 | printk( "TLAN: Off. +0 +1 +2 +3 \n" ); | |
2472 | for ( i = 0; i < 0x20; i+= 4 ) { | |
2473 | printk( "TLAN: 0x%02x", i ); | |
2474 | TLan_MiiReadReg( dev, phy, i, &data0 ); | |
2475 | printk( " 0x%04hx", data0 ); | |
2476 | TLan_MiiReadReg( dev, phy, i + 1, &data1 ); | |
2477 | printk( " 0x%04hx", data1 ); | |
2478 | TLan_MiiReadReg( dev, phy, i + 2, &data2 ); | |
2479 | printk( " 0x%04hx", data2 ); | |
2480 | TLan_MiiReadReg( dev, phy, i + 3, &data3 ); | |
2481 | printk( " 0x%04hx\n", data3 ); | |
2482 | } | |
2483 | } else { | |
2484 | printk( "TLAN: Device %s, Invalid PHY.\n", dev->name ); | |
2485 | } | |
2486 | ||
2487 | } /* TLan_PhyPrint */ | |
2488 | ||
2489 | ||
2490 | ||
2491 | ||
2492 | /********************************************************************* | |
2493 | * TLan_PhyDetect | |
2494 | * | |
2495 | * Returns: | |
2496 | * Nothing | |
2497 | * Parms: | |
2498 | * dev A pointer to the device structure of the adapter | |
2499 | * for which the PHY needs determined. | |
2500 | * | |
2501 | * So far I've found that adapters which have external PHYs | |
2502 | * may also use the internal PHY for part of the functionality. | |
2503 | * (eg, AUI/Thinnet). This function finds out if this TLAN | |
2504 | * chip has an internal PHY, and then finds the first external | |
2505 | * PHY (starting from address 0) if it exists). | |
2506 | * | |
2507 | ********************************************************************/ | |
2508 | ||
98e0f521 | 2509 | static void TLan_PhyDetect( struct net_device *dev ) |
1da177e4 LT |
2510 | { |
2511 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2512 | u16 control; | |
2513 | u16 hi; | |
2514 | u16 lo; | |
2515 | u32 phy; | |
2516 | ||
2517 | if ( priv->adapter->flags & TLAN_ADAPTER_UNMANAGED_PHY ) { | |
2518 | priv->phyNum = 0xFFFF; | |
2519 | return; | |
2520 | } | |
2521 | ||
2522 | TLan_MiiReadReg( dev, TLAN_PHY_MAX_ADDR, MII_GEN_ID_HI, &hi ); | |
6aa20a22 | 2523 | |
1da177e4 LT |
2524 | if ( hi != 0xFFFF ) { |
2525 | priv->phy[0] = TLAN_PHY_MAX_ADDR; | |
2526 | } else { | |
2527 | priv->phy[0] = TLAN_PHY_NONE; | |
2528 | } | |
2529 | ||
2530 | priv->phy[1] = TLAN_PHY_NONE; | |
2531 | for ( phy = 0; phy <= TLAN_PHY_MAX_ADDR; phy++ ) { | |
2532 | TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &control ); | |
2533 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_HI, &hi ); | |
2534 | TLan_MiiReadReg( dev, phy, MII_GEN_ID_LO, &lo ); | |
2535 | if ( ( control != 0xFFFF ) || ( hi != 0xFFFF ) || ( lo != 0xFFFF ) ) { | |
2536 | TLAN_DBG( TLAN_DEBUG_GNRL, "PHY found at %02x %04x %04x %04x\n", phy, control, hi, lo ); | |
2537 | if ( ( priv->phy[1] == TLAN_PHY_NONE ) && ( phy != TLAN_PHY_MAX_ADDR ) ) { | |
2538 | priv->phy[1] = phy; | |
2539 | } | |
2540 | } | |
2541 | } | |
2542 | ||
2543 | if ( priv->phy[1] != TLAN_PHY_NONE ) { | |
2544 | priv->phyNum = 1; | |
2545 | } else if ( priv->phy[0] != TLAN_PHY_NONE ) { | |
2546 | priv->phyNum = 0; | |
2547 | } else { | |
2548 | printk( "TLAN: Cannot initialize device, no PHY was found!\n" ); | |
2549 | } | |
2550 | ||
2551 | } /* TLan_PhyDetect */ | |
2552 | ||
2553 | ||
2554 | ||
2555 | ||
98e0f521 | 2556 | static void TLan_PhyPowerDown( struct net_device *dev ) |
1da177e4 LT |
2557 | { |
2558 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2559 | u16 value; | |
2560 | ||
2561 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering down PHY(s).\n", dev->name ); | |
2562 | value = MII_GC_PDOWN | MII_GC_LOOPBK | MII_GC_ISOLATE; | |
2563 | TLan_MiiSync( dev->base_addr ); | |
2564 | TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value ); | |
2565 | if ( ( priv->phyNum == 0 ) && ( priv->phy[1] != TLAN_PHY_NONE ) && ( ! ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) ) ) { | |
2566 | TLan_MiiSync( dev->base_addr ); | |
2567 | TLan_MiiWriteReg( dev, priv->phy[1], MII_GEN_CTL, value ); | |
2568 | } | |
2569 | ||
2570 | /* Wait for 50 ms and powerup | |
2571 | * This is abitrary. It is intended to make sure the | |
2572 | * transceiver settles. | |
2573 | */ | |
2574 | TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_PUP ); | |
2575 | ||
2576 | } /* TLan_PhyPowerDown */ | |
2577 | ||
2578 | ||
2579 | ||
2580 | ||
98e0f521 | 2581 | static void TLan_PhyPowerUp( struct net_device *dev ) |
1da177e4 LT |
2582 | { |
2583 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2584 | u16 value; | |
2585 | ||
2586 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Powering up PHY.\n", dev->name ); | |
2587 | TLan_MiiSync( dev->base_addr ); | |
2588 | value = MII_GC_LOOPBK; | |
2589 | TLan_MiiWriteReg( dev, priv->phy[priv->phyNum], MII_GEN_CTL, value ); | |
2590 | TLan_MiiSync(dev->base_addr); | |
2591 | /* Wait for 500 ms and reset the | |
2592 | * transceiver. The TLAN docs say both 50 ms and | |
2593 | * 500 ms, so do the longer, just in case. | |
2594 | */ | |
2595 | TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_RESET ); | |
2596 | ||
2597 | } /* TLan_PhyPowerUp */ | |
2598 | ||
2599 | ||
2600 | ||
2601 | ||
98e0f521 | 2602 | static void TLan_PhyReset( struct net_device *dev ) |
1da177e4 LT |
2603 | { |
2604 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2605 | u16 phy; | |
2606 | u16 value; | |
2607 | ||
2608 | phy = priv->phy[priv->phyNum]; | |
2609 | ||
2610 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Reseting PHY.\n", dev->name ); | |
2611 | TLan_MiiSync( dev->base_addr ); | |
2612 | value = MII_GC_LOOPBK | MII_GC_RESET; | |
2613 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, value ); | |
2614 | TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value ); | |
2615 | while ( value & MII_GC_RESET ) { | |
2616 | TLan_MiiReadReg( dev, phy, MII_GEN_CTL, &value ); | |
2617 | } | |
2618 | ||
2619 | /* Wait for 500 ms and initialize. | |
2620 | * I don't remember why I wait this long. | |
2621 | * I've changed this to 50ms, as it seems long enough. | |
2622 | */ | |
2623 | TLan_SetTimer( dev, (HZ/20), TLAN_TIMER_PHY_START_LINK ); | |
2624 | ||
2625 | } /* TLan_PhyReset */ | |
2626 | ||
2627 | ||
2628 | ||
2629 | ||
98e0f521 | 2630 | static void TLan_PhyStartLink( struct net_device *dev ) |
1da177e4 LT |
2631 | { |
2632 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2633 | u16 ability; | |
2634 | u16 control; | |
2635 | u16 data; | |
2636 | u16 phy; | |
2637 | u16 status; | |
2638 | u16 tctl; | |
2639 | ||
2640 | phy = priv->phy[priv->phyNum]; | |
2641 | TLAN_DBG( TLAN_DEBUG_GNRL, "%s: Trying to activate link.\n", dev->name ); | |
2642 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); | |
2643 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &ability ); | |
2644 | ||
6aa20a22 | 2645 | if ( ( status & MII_GS_AUTONEG ) && |
1da177e4 LT |
2646 | ( ! priv->aui ) ) { |
2647 | ability = status >> 11; | |
6aa20a22 | 2648 | if ( priv->speed == TLAN_SPEED_10 && |
1da177e4 LT |
2649 | priv->duplex == TLAN_DUPLEX_HALF) { |
2650 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0000); | |
2651 | } else if ( priv->speed == TLAN_SPEED_10 && | |
2652 | priv->duplex == TLAN_DUPLEX_FULL) { | |
2653 | priv->tlanFullDuplex = TRUE; | |
2654 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x0100); | |
2655 | } else if ( priv->speed == TLAN_SPEED_100 && | |
2656 | priv->duplex == TLAN_DUPLEX_HALF) { | |
2657 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2000); | |
2658 | } else if ( priv->speed == TLAN_SPEED_100 && | |
2659 | priv->duplex == TLAN_DUPLEX_FULL) { | |
2660 | priv->tlanFullDuplex = TRUE; | |
2661 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x2100); | |
2662 | } else { | |
6aa20a22 | 2663 | |
1da177e4 LT |
2664 | /* Set Auto-Neg advertisement */ |
2665 | TLan_MiiWriteReg( dev, phy, MII_AN_ADV, (ability << 5) | 1); | |
2666 | /* Enablee Auto-Neg */ | |
2667 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1000 ); | |
2668 | /* Restart Auto-Neg */ | |
2669 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, 0x1200 ); | |
2670 | /* Wait for 4 sec for autonegotiation | |
2671 | * to complete. The max spec time is less than this | |
2672 | * but the card need additional time to start AN. | |
2673 | * .5 sec should be plenty extra. | |
2674 | */ | |
2675 | printk( "TLAN: %s: Starting autonegotiation.\n", dev->name ); | |
2676 | TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_PHY_FINISH_AN ); | |
2677 | return; | |
2678 | } | |
6aa20a22 JG |
2679 | |
2680 | } | |
2681 | ||
1da177e4 LT |
2682 | if ( ( priv->aui ) && ( priv->phyNum != 0 ) ) { |
2683 | priv->phyNum = 0; | |
2684 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; | |
2685 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data ); | |
2686 | TLan_SetTimer( dev, (40*HZ/1000), TLAN_TIMER_PHY_PDOWN ); | |
2687 | return; | |
2688 | } else if ( priv->phyNum == 0 ) { | |
2689 | control = 0; | |
2690 | TLan_MiiReadReg( dev, phy, TLAN_TLPHY_CTL, &tctl ); | |
2691 | if ( priv->aui ) { | |
2692 | tctl |= TLAN_TC_AUISEL; | |
6aa20a22 | 2693 | } else { |
1da177e4 LT |
2694 | tctl &= ~TLAN_TC_AUISEL; |
2695 | if ( priv->duplex == TLAN_DUPLEX_FULL ) { | |
2696 | control |= MII_GC_DUPLEX; | |
2697 | priv->tlanFullDuplex = TRUE; | |
2698 | } | |
2699 | if ( priv->speed == TLAN_SPEED_100 ) { | |
2700 | control |= MII_GC_SPEEDSEL; | |
2701 | } | |
2702 | } | |
2703 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, control ); | |
2704 | TLan_MiiWriteReg( dev, phy, TLAN_TLPHY_CTL, tctl ); | |
2705 | } | |
2706 | ||
2707 | /* Wait for 2 sec to give the transceiver time | |
2708 | * to establish link. | |
2709 | */ | |
2710 | TLan_SetTimer( dev, (4*HZ), TLAN_TIMER_FINISH_RESET ); | |
2711 | ||
2712 | } /* TLan_PhyStartLink */ | |
2713 | ||
2714 | ||
2715 | ||
2716 | ||
98e0f521 | 2717 | static void TLan_PhyFinishAutoNeg( struct net_device *dev ) |
1da177e4 LT |
2718 | { |
2719 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2720 | u16 an_adv; | |
2721 | u16 an_lpa; | |
2722 | u16 data; | |
2723 | u16 mode; | |
2724 | u16 phy; | |
2725 | u16 status; | |
6aa20a22 | 2726 | |
1da177e4 LT |
2727 | phy = priv->phy[priv->phyNum]; |
2728 | ||
2729 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); | |
2730 | udelay( 1000 ); | |
2731 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &status ); | |
2732 | ||
2733 | if ( ! ( status & MII_GS_AUTOCMPLT ) ) { | |
2734 | /* Wait for 8 sec to give the process | |
2735 | * more time. Perhaps we should fail after a while. | |
2736 | */ | |
2737 | if (!priv->neg_be_verbose++) { | |
2738 | printk(KERN_INFO "TLAN: Giving autonegotiation more time.\n"); | |
2739 | printk(KERN_INFO "TLAN: Please check that your adapter has\n"); | |
2740 | printk(KERN_INFO "TLAN: been properly connected to a HUB or Switch.\n"); | |
2741 | printk(KERN_INFO "TLAN: Trying to establish link in the background...\n"); | |
2742 | } | |
2743 | TLan_SetTimer( dev, (8*HZ), TLAN_TIMER_PHY_FINISH_AN ); | |
2744 | return; | |
2745 | } | |
2746 | ||
2747 | printk( "TLAN: %s: Autonegotiation complete.\n", dev->name ); | |
2748 | TLan_MiiReadReg( dev, phy, MII_AN_ADV, &an_adv ); | |
2749 | TLan_MiiReadReg( dev, phy, MII_AN_LPA, &an_lpa ); | |
2750 | mode = an_adv & an_lpa & 0x03E0; | |
2751 | if ( mode & 0x0100 ) { | |
2752 | priv->tlanFullDuplex = TRUE; | |
2753 | } else if ( ! ( mode & 0x0080 ) && ( mode & 0x0040 ) ) { | |
2754 | priv->tlanFullDuplex = TRUE; | |
2755 | } | |
2756 | ||
2757 | if ( ( ! ( mode & 0x0180 ) ) && ( priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10 ) && ( priv->phyNum != 0 ) ) { | |
2758 | priv->phyNum = 0; | |
2759 | data = TLAN_NET_CFG_1FRAG | TLAN_NET_CFG_1CHAN | TLAN_NET_CFG_PHY_EN; | |
2760 | TLan_DioWrite16( dev->base_addr, TLAN_NET_CONFIG, data ); | |
2761 | TLan_SetTimer( dev, (400*HZ/1000), TLAN_TIMER_PHY_PDOWN ); | |
2762 | return; | |
2763 | } | |
2764 | ||
2765 | if ( priv->phyNum == 0 ) { | |
2766 | if ( ( priv->duplex == TLAN_DUPLEX_FULL ) || ( an_adv & an_lpa & 0x0040 ) ) { | |
2767 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB | MII_GC_DUPLEX ); | |
2768 | printk( "TLAN: Starting internal PHY with FULL-DUPLEX\n" ); | |
2769 | } else { | |
2770 | TLan_MiiWriteReg( dev, phy, MII_GEN_CTL, MII_GC_AUTOENB ); | |
2771 | printk( "TLAN: Starting internal PHY with HALF-DUPLEX\n" ); | |
2772 | } | |
2773 | } | |
2774 | ||
2775 | /* Wait for 100 ms. No reason in partiticular. | |
2776 | */ | |
2777 | TLan_SetTimer( dev, (HZ/10), TLAN_TIMER_FINISH_RESET ); | |
6aa20a22 | 2778 | |
1da177e4 LT |
2779 | } /* TLan_PhyFinishAutoNeg */ |
2780 | ||
2781 | #ifdef MONITOR | |
2782 | ||
2783 | /********************************************************************* | |
2784 | * | |
2785 | * TLan_phyMonitor | |
2786 | * | |
6aa20a22 | 2787 | * Returns: |
1da177e4 LT |
2788 | * None |
2789 | * | |
2790 | * Params: | |
2791 | * dev The device structure of this device. | |
2792 | * | |
6aa20a22 | 2793 | * |
1da177e4 LT |
2794 | * This function monitors PHY condition by reading the status |
2795 | * register via the MII bus. This can be used to give info | |
2796 | * about link changes (up/down), and possible switch to alternate | |
2797 | * media. | |
2798 | * | |
2799 | * ******************************************************************/ | |
2800 | ||
2801 | void TLan_PhyMonitor( struct net_device *dev ) | |
2802 | { | |
2803 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2804 | u16 phy; | |
2805 | u16 phy_status; | |
2806 | ||
2807 | phy = priv->phy[priv->phyNum]; | |
2808 | ||
2809 | /* Get PHY status register */ | |
2810 | TLan_MiiReadReg( dev, phy, MII_GEN_STS, &phy_status ); | |
2811 | ||
2812 | /* Check if link has been lost */ | |
6aa20a22 | 2813 | if (!(phy_status & MII_GS_LINK)) { |
1da177e4 LT |
2814 | if (priv->link) { |
2815 | priv->link = 0; | |
2816 | printk(KERN_DEBUG "TLAN: %s has lost link\n", dev->name); | |
7d17c1d6 | 2817 | netif_carrier_off(dev); |
1da177e4 LT |
2818 | TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT ); |
2819 | return; | |
2820 | } | |
2821 | } | |
2822 | ||
2823 | /* Link restablished? */ | |
2824 | if ((phy_status & MII_GS_LINK) && !priv->link) { | |
2825 | priv->link = 1; | |
2826 | printk(KERN_DEBUG "TLAN: %s has reestablished link\n", dev->name); | |
7d17c1d6 | 2827 | netif_carrier_on(dev); |
1da177e4 LT |
2828 | } |
2829 | ||
2830 | /* Setup a new monitor */ | |
2831 | TLan_SetTimer( dev, (2*HZ), TLAN_TIMER_LINK_BEAT ); | |
6aa20a22 | 2832 | } |
1da177e4 LT |
2833 | |
2834 | #endif /* MONITOR */ | |
2835 | ||
2836 | ||
2837 | /***************************************************************************** | |
2838 | ****************************************************************************** | |
2839 | ||
2840 | ThunderLAN Driver MII Routines | |
2841 | ||
2842 | These routines are based on the information in Chap. 2 of the | |
2843 | "ThunderLAN Programmer's Guide", pp. 15-24. | |
2844 | ||
2845 | ****************************************************************************** | |
2846 | *****************************************************************************/ | |
2847 | ||
2848 | ||
2849 | /*************************************************************** | |
2850 | * TLan_MiiReadReg | |
2851 | * | |
2852 | * Returns: | |
2853 | * 0 if ack received ok | |
2854 | * 1 otherwise. | |
2855 | * | |
2856 | * Parms: | |
2857 | * dev The device structure containing | |
2858 | * The io address and interrupt count | |
2859 | * for this device. | |
2860 | * phy The address of the PHY to be queried. | |
2861 | * reg The register whose contents are to be | |
4a4efbde | 2862 | * retrieved. |
1da177e4 LT |
2863 | * val A pointer to a variable to store the |
2864 | * retrieved value. | |
2865 | * | |
4a4efbde | 2866 | * This function uses the TLAN's MII bus to retrieve the contents |
1da177e4 LT |
2867 | * of a given register on a PHY. It sends the appropriate info |
2868 | * and then reads the 16-bit register value from the MII bus via | |
2869 | * the TLAN SIO register. | |
2870 | * | |
2871 | **************************************************************/ | |
2872 | ||
98e0f521 | 2873 | static int TLan_MiiReadReg( struct net_device *dev, u16 phy, u16 reg, u16 *val ) |
1da177e4 LT |
2874 | { |
2875 | u8 nack; | |
2876 | u16 sio, tmp; | |
2877 | u32 i; | |
2878 | int err; | |
2879 | int minten; | |
2880 | TLanPrivateInfo *priv = netdev_priv(dev); | |
2881 | unsigned long flags = 0; | |
2882 | ||
2883 | err = FALSE; | |
2884 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); | |
2885 | sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; | |
6aa20a22 | 2886 | |
1da177e4 LT |
2887 | if (!in_irq()) |
2888 | spin_lock_irqsave(&priv->lock, flags); | |
2889 | ||
2890 | TLan_MiiSync(dev->base_addr); | |
2891 | ||
2892 | minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio ); | |
2893 | if ( minten ) | |
2894 | TLan_ClearBit(TLAN_NET_SIO_MINTEN, sio); | |
2895 | ||
2896 | TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */ | |
2897 | TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Read ( 10b ) */ | |
2898 | TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */ | |
2899 | TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */ | |
2900 | ||
2901 | ||
2902 | TLan_ClearBit(TLAN_NET_SIO_MTXEN, sio); /* Change direction */ | |
2903 | ||
2904 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Clock Idle bit */ | |
2905 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); | |
2906 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Wait 300ns */ | |
2907 | ||
2908 | nack = TLan_GetBit(TLAN_NET_SIO_MDATA, sio); /* Check for ACK */ | |
2909 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); /* Finish ACK */ | |
2910 | if (nack) { /* No ACK, so fake it */ | |
2911 | for (i = 0; i < 16; i++) { | |
2912 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); | |
2913 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); | |
2914 | } | |
2915 | tmp = 0xffff; | |
2916 | err = TRUE; | |
2917 | } else { /* ACK, so read data */ | |
2918 | for (tmp = 0, i = 0x8000; i; i >>= 1) { | |
2919 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); | |
2920 | if (TLan_GetBit(TLAN_NET_SIO_MDATA, sio)) | |
2921 | tmp |= i; | |
2922 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); | |
2923 | } | |
2924 | } | |
2925 | ||
2926 | ||
2927 | TLan_ClearBit(TLAN_NET_SIO_MCLK, sio); /* Idle cycle */ | |
2928 | TLan_SetBit(TLAN_NET_SIO_MCLK, sio); | |
2929 | ||
2930 | if ( minten ) | |
2931 | TLan_SetBit(TLAN_NET_SIO_MINTEN, sio); | |
2932 | ||
2933 | *val = tmp; | |
6aa20a22 | 2934 | |
1da177e4 LT |
2935 | if (!in_irq()) |
2936 | spin_unlock_irqrestore(&priv->lock, flags); | |
2937 | ||
2938 | return err; | |
2939 | ||
2940 | } /* TLan_MiiReadReg */ | |
2941 | ||
2942 | ||
2943 | ||
2944 | ||
2945 | /*************************************************************** | |
2946 | * TLan_MiiSendData | |
2947 | * | |
2948 | * Returns: | |
2949 | * Nothing | |
2950 | * Parms: | |
2951 | * base_port The base IO port of the adapter in | |
2952 | * question. | |
2953 | * dev The address of the PHY to be queried. | |
2954 | * data The value to be placed on the MII bus. | |
2955 | * num_bits The number of bits in data that are to | |
2956 | * be placed on the MII bus. | |
2957 | * | |
2958 | * This function sends on sequence of bits on the MII | |
2959 | * configuration bus. | |
2960 | * | |
2961 | **************************************************************/ | |
2962 | ||
98e0f521 | 2963 | static void TLan_MiiSendData( u16 base_port, u32 data, unsigned num_bits ) |
1da177e4 LT |
2964 | { |
2965 | u16 sio; | |
2966 | u32 i; | |
2967 | ||
2968 | if ( num_bits == 0 ) | |
2969 | return; | |
2970 | ||
2971 | outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR ); | |
2972 | sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; | |
2973 | TLan_SetBit( TLAN_NET_SIO_MTXEN, sio ); | |
2974 | ||
2975 | for ( i = ( 0x1 << ( num_bits - 1 ) ); i; i >>= 1 ) { | |
2976 | TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); | |
2977 | (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio ); | |
2978 | if ( data & i ) | |
2979 | TLan_SetBit( TLAN_NET_SIO_MDATA, sio ); | |
2980 | else | |
2981 | TLan_ClearBit( TLAN_NET_SIO_MDATA, sio ); | |
2982 | TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); | |
2983 | (void) TLan_GetBit( TLAN_NET_SIO_MCLK, sio ); | |
2984 | } | |
2985 | ||
2986 | } /* TLan_MiiSendData */ | |
2987 | ||
2988 | ||
2989 | ||
2990 | ||
2991 | /*************************************************************** | |
2992 | * TLan_MiiSync | |
2993 | * | |
2994 | * Returns: | |
2995 | * Nothing | |
2996 | * Parms: | |
2997 | * base_port The base IO port of the adapter in | |
2998 | * question. | |
2999 | * | |
3000 | * This functions syncs all PHYs in terms of the MII configuration | |
3001 | * bus. | |
3002 | * | |
3003 | **************************************************************/ | |
3004 | ||
98e0f521 | 3005 | static void TLan_MiiSync( u16 base_port ) |
1da177e4 LT |
3006 | { |
3007 | int i; | |
3008 | u16 sio; | |
3009 | ||
3010 | outw( TLAN_NET_SIO, base_port + TLAN_DIO_ADR ); | |
3011 | sio = base_port + TLAN_DIO_DATA + TLAN_NET_SIO; | |
3012 | ||
3013 | TLan_ClearBit( TLAN_NET_SIO_MTXEN, sio ); | |
3014 | for ( i = 0; i < 32; i++ ) { | |
3015 | TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); | |
3016 | TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); | |
3017 | } | |
3018 | ||
3019 | } /* TLan_MiiSync */ | |
3020 | ||
3021 | ||
3022 | ||
3023 | ||
3024 | /*************************************************************** | |
3025 | * TLan_MiiWriteReg | |
3026 | * | |
3027 | * Returns: | |
3028 | * Nothing | |
3029 | * Parms: | |
3030 | * dev The device structure for the device | |
3031 | * to write to. | |
3032 | * phy The address of the PHY to be written to. | |
3033 | * reg The register whose contents are to be | |
3034 | * written. | |
3035 | * val The value to be written to the register. | |
3036 | * | |
3037 | * This function uses the TLAN's MII bus to write the contents of a | |
3038 | * given register on a PHY. It sends the appropriate info and then | |
3039 | * writes the 16-bit register value from the MII configuration bus | |
3040 | * via the TLAN SIO register. | |
3041 | * | |
3042 | **************************************************************/ | |
3043 | ||
98e0f521 | 3044 | static void TLan_MiiWriteReg( struct net_device *dev, u16 phy, u16 reg, u16 val ) |
1da177e4 LT |
3045 | { |
3046 | u16 sio; | |
3047 | int minten; | |
3048 | unsigned long flags = 0; | |
3049 | TLanPrivateInfo *priv = netdev_priv(dev); | |
3050 | ||
3051 | outw(TLAN_NET_SIO, dev->base_addr + TLAN_DIO_ADR); | |
3052 | sio = dev->base_addr + TLAN_DIO_DATA + TLAN_NET_SIO; | |
6aa20a22 | 3053 | |
1da177e4 LT |
3054 | if (!in_irq()) |
3055 | spin_lock_irqsave(&priv->lock, flags); | |
3056 | ||
3057 | TLan_MiiSync( dev->base_addr ); | |
3058 | ||
3059 | minten = TLan_GetBit( TLAN_NET_SIO_MINTEN, sio ); | |
3060 | if ( minten ) | |
3061 | TLan_ClearBit( TLAN_NET_SIO_MINTEN, sio ); | |
3062 | ||
3063 | TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Start ( 01b ) */ | |
3064 | TLan_MiiSendData( dev->base_addr, 0x1, 2 ); /* Write ( 01b ) */ | |
3065 | TLan_MiiSendData( dev->base_addr, phy, 5 ); /* Device # */ | |
3066 | TLan_MiiSendData( dev->base_addr, reg, 5 ); /* Register # */ | |
3067 | ||
3068 | TLan_MiiSendData( dev->base_addr, 0x2, 2 ); /* Send ACK */ | |
3069 | TLan_MiiSendData( dev->base_addr, val, 16 ); /* Send Data */ | |
3070 | ||
3071 | TLan_ClearBit( TLAN_NET_SIO_MCLK, sio ); /* Idle cycle */ | |
3072 | TLan_SetBit( TLAN_NET_SIO_MCLK, sio ); | |
3073 | ||
3074 | if ( minten ) | |
3075 | TLan_SetBit( TLAN_NET_SIO_MINTEN, sio ); | |
6aa20a22 | 3076 | |
1da177e4 LT |
3077 | if (!in_irq()) |
3078 | spin_unlock_irqrestore(&priv->lock, flags); | |
3079 | ||
3080 | } /* TLan_MiiWriteReg */ | |
3081 | ||
3082 | ||
3083 | ||
3084 | ||
3085 | /***************************************************************************** | |
3086 | ****************************************************************************** | |
3087 | ||
3088 | ThunderLAN Driver Eeprom routines | |
3089 | ||
3090 | The Compaq Netelligent 10 and 10/100 cards use a Microchip 24C02A | |
3091 | EEPROM. These functions are based on information in Microchip's | |
3092 | data sheet. I don't know how well this functions will work with | |
3093 | other EEPROMs. | |
3094 | ||
3095 | ****************************************************************************** | |
3096 | *****************************************************************************/ | |
3097 | ||
3098 | ||
3099 | /*************************************************************** | |
3100 | * TLan_EeSendStart | |
3101 | * | |
3102 | * Returns: | |
3103 | * Nothing | |
6aa20a22 | 3104 | * Parms: |
1da177e4 LT |
3105 | * io_base The IO port base address for the |
3106 | * TLAN device with the EEPROM to | |
3107 | * use. | |
3108 | * | |
3109 | * This function sends a start cycle to an EEPROM attached | |
3110 | * to a TLAN chip. | |
3111 | * | |
3112 | **************************************************************/ | |
3113 | ||
98e0f521 | 3114 | static void TLan_EeSendStart( u16 io_base ) |
1da177e4 LT |
3115 | { |
3116 | u16 sio; | |
3117 | ||
3118 | outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); | |
3119 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; | |
3120 | ||
3121 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3122 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); | |
3123 | TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); | |
3124 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); | |
3125 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); | |
3126 | ||
3127 | } /* TLan_EeSendStart */ | |
3128 | ||
3129 | ||
3130 | ||
3131 | ||
3132 | /*************************************************************** | |
3133 | * TLan_EeSendByte | |
3134 | * | |
3135 | * Returns: | |
3136 | * If the correct ack was received, 0, otherwise 1 | |
3137 | * Parms: io_base The IO port base address for the | |
3138 | * TLAN device with the EEPROM to | |
3139 | * use. | |
3140 | * data The 8 bits of information to | |
3141 | * send to the EEPROM. | |
3142 | * stop If TLAN_EEPROM_STOP is passed, a | |
3143 | * stop cycle is sent after the | |
3144 | * byte is sent after the ack is | |
3145 | * read. | |
3146 | * | |
3147 | * This function sends a byte on the serial EEPROM line, | |
3148 | * driving the clock to send each bit. The function then | |
3149 | * reverses transmission direction and reads an acknowledge | |
3150 | * bit. | |
3151 | * | |
3152 | **************************************************************/ | |
3153 | ||
98e0f521 | 3154 | static int TLan_EeSendByte( u16 io_base, u8 data, int stop ) |
1da177e4 LT |
3155 | { |
3156 | int err; | |
3157 | u8 place; | |
3158 | u16 sio; | |
3159 | ||
3160 | outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); | |
3161 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; | |
3162 | ||
3163 | /* Assume clock is low, tx is enabled; */ | |
3164 | for ( place = 0x80; place != 0; place >>= 1 ) { | |
3165 | if ( place & data ) | |
3166 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); | |
3167 | else | |
3168 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); | |
3169 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3170 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); | |
3171 | } | |
3172 | TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio ); | |
3173 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3174 | err = TLan_GetBit( TLAN_NET_SIO_EDATA, sio ); | |
3175 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); | |
3176 | TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); | |
3177 | ||
3178 | if ( ( ! err ) && stop ) { | |
3179 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */ | |
3180 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3181 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); | |
3182 | } | |
3183 | ||
3184 | return ( err ); | |
3185 | ||
3186 | } /* TLan_EeSendByte */ | |
3187 | ||
3188 | ||
3189 | ||
3190 | ||
3191 | /*************************************************************** | |
3192 | * TLan_EeReceiveByte | |
3193 | * | |
3194 | * Returns: | |
3195 | * Nothing | |
3196 | * Parms: | |
3197 | * io_base The IO port base address for the | |
3198 | * TLAN device with the EEPROM to | |
3199 | * use. | |
3200 | * data An address to a char to hold the | |
3201 | * data sent from the EEPROM. | |
3202 | * stop If TLAN_EEPROM_STOP is passed, a | |
3203 | * stop cycle is sent after the | |
3204 | * byte is received, and no ack is | |
3205 | * sent. | |
3206 | * | |
3207 | * This function receives 8 bits of data from the EEPROM | |
3208 | * over the serial link. It then sends and ack bit, or no | |
3209 | * ack and a stop bit. This function is used to retrieve | |
3210 | * data after the address of a byte in the EEPROM has been | |
3211 | * sent. | |
3212 | * | |
3213 | **************************************************************/ | |
3214 | ||
98e0f521 | 3215 | static void TLan_EeReceiveByte( u16 io_base, u8 *data, int stop ) |
1da177e4 LT |
3216 | { |
3217 | u8 place; | |
3218 | u16 sio; | |
3219 | ||
3220 | outw( TLAN_NET_SIO, io_base + TLAN_DIO_ADR ); | |
3221 | sio = io_base + TLAN_DIO_DATA + TLAN_NET_SIO; | |
3222 | *data = 0; | |
3223 | ||
3224 | /* Assume clock is low, tx is enabled; */ | |
3225 | TLan_ClearBit( TLAN_NET_SIO_ETXEN, sio ); | |
3226 | for ( place = 0x80; place; place >>= 1 ) { | |
3227 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3228 | if ( TLan_GetBit( TLAN_NET_SIO_EDATA, sio ) ) | |
3229 | *data |= place; | |
3230 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); | |
3231 | } | |
3232 | ||
3233 | TLan_SetBit( TLAN_NET_SIO_ETXEN, sio ); | |
3234 | if ( ! stop ) { | |
3235 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* Ack = 0 */ | |
3236 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3237 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); | |
3238 | } else { | |
3239 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); /* No ack = 1 (?) */ | |
3240 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3241 | TLan_ClearBit( TLAN_NET_SIO_ECLOK, sio ); | |
3242 | TLan_ClearBit( TLAN_NET_SIO_EDATA, sio ); /* STOP, raise data while clock is high */ | |
3243 | TLan_SetBit( TLAN_NET_SIO_ECLOK, sio ); | |
3244 | TLan_SetBit( TLAN_NET_SIO_EDATA, sio ); | |
3245 | } | |
3246 | ||
3247 | } /* TLan_EeReceiveByte */ | |
3248 | ||
3249 | ||
3250 | ||
3251 | ||
3252 | /*************************************************************** | |
3253 | * TLan_EeReadByte | |
3254 | * | |
3255 | * Returns: | |
3256 | * No error = 0, else, the stage at which the error | |
3257 | * occurred. | |
3258 | * Parms: | |
3259 | * io_base The IO port base address for the | |
3260 | * TLAN device with the EEPROM to | |
3261 | * use. | |
3262 | * ee_addr The address of the byte in the | |
3263 | * EEPROM whose contents are to be | |
3264 | * retrieved. | |
3265 | * data An address to a char to hold the | |
3266 | * data obtained from the EEPROM. | |
3267 | * | |
3268 | * This function reads a byte of information from an byte | |
3269 | * cell in the EEPROM. | |
3270 | * | |
3271 | **************************************************************/ | |
3272 | ||
98e0f521 | 3273 | static int TLan_EeReadByte( struct net_device *dev, u8 ee_addr, u8 *data ) |
1da177e4 LT |
3274 | { |
3275 | int err; | |
3276 | TLanPrivateInfo *priv = netdev_priv(dev); | |
3277 | unsigned long flags = 0; | |
3278 | int ret=0; | |
3279 | ||
3280 | spin_lock_irqsave(&priv->lock, flags); | |
3281 | ||
3282 | TLan_EeSendStart( dev->base_addr ); | |
3283 | err = TLan_EeSendByte( dev->base_addr, 0xA0, TLAN_EEPROM_ACK ); | |
3284 | if (err) | |
3285 | { | |
3286 | ret=1; | |
3287 | goto fail; | |
3288 | } | |
3289 | err = TLan_EeSendByte( dev->base_addr, ee_addr, TLAN_EEPROM_ACK ); | |
3290 | if (err) | |
3291 | { | |
3292 | ret=2; | |
3293 | goto fail; | |
3294 | } | |
3295 | TLan_EeSendStart( dev->base_addr ); | |
3296 | err = TLan_EeSendByte( dev->base_addr, 0xA1, TLAN_EEPROM_ACK ); | |
3297 | if (err) | |
3298 | { | |
3299 | ret=3; | |
3300 | goto fail; | |
3301 | } | |
3302 | TLan_EeReceiveByte( dev->base_addr, data, TLAN_EEPROM_STOP ); | |
3303 | fail: | |
3304 | spin_unlock_irqrestore(&priv->lock, flags); | |
3305 | ||
3306 | return ret; | |
3307 | ||
3308 | } /* TLan_EeReadByte */ | |
3309 | ||
3310 | ||
3311 |