Commit | Line | Data |
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1da177e4 LT |
1 | /* ---------------------------------------------------------------------------- |
2 | Linux PCMCIA ethernet adapter driver for the New Media Ethernet LAN. | |
3 | nmclan_cs.c,v 0.16 1995/07/01 06:42:17 rpao Exp rpao | |
4 | ||
5 | The Ethernet LAN uses the Advanced Micro Devices (AMD) Am79C940 Media | |
6 | Access Controller for Ethernet (MACE). It is essentially the Am2150 | |
7 | PCMCIA Ethernet card contained in the Am2150 Demo Kit. | |
8 | ||
9 | Written by Roger C. Pao <rpao@paonet.org> | |
10 | Copyright 1995 Roger C. Pao | |
11 | Linux 2.5 cleanups Copyright Red Hat 2003 | |
12 | ||
13 | This software may be used and distributed according to the terms of | |
14 | the GNU General Public License. | |
15 | ||
16 | Ported to Linux 1.3.* network driver environment by | |
17 | Matti Aarnio <mea@utu.fi> | |
18 | ||
19 | References | |
20 | ||
21 | Am2150 Technical Reference Manual, Revision 1.0, August 17, 1993 | |
22 | Am79C940 (MACE) Data Sheet, 1994 | |
23 | Am79C90 (C-LANCE) Data Sheet, 1994 | |
24 | Linux PCMCIA Programmer's Guide v1.17 | |
25 | /usr/src/linux/net/inet/dev.c, Linux kernel 1.2.8 | |
26 | ||
27 | Eric Mears, New Media Corporation | |
28 | Tom Pollard, New Media Corporation | |
29 | Dean Siasoyco, New Media Corporation | |
30 | Ken Lesniak, Silicon Graphics, Inc. <lesniak@boston.sgi.com> | |
31 | Donald Becker <becker@scyld.com> | |
32 | David Hinds <dahinds@users.sourceforge.net> | |
33 | ||
34 | The Linux client driver is based on the 3c589_cs.c client driver by | |
35 | David Hinds. | |
36 | ||
37 | The Linux network driver outline is based on the 3c589_cs.c driver, | |
38 | the 8390.c driver, and the example skeleton.c kernel code, which are | |
39 | by Donald Becker. | |
40 | ||
41 | The Am2150 network driver hardware interface code is based on the | |
42 | OS/9000 driver for the New Media Ethernet LAN by Eric Mears. | |
43 | ||
44 | Special thanks for testing and help in debugging this driver goes | |
45 | to Ken Lesniak. | |
46 | ||
47 | ------------------------------------------------------------------------------- | |
48 | Driver Notes and Issues | |
49 | ------------------------------------------------------------------------------- | |
50 | ||
51 | 1. Developed on a Dell 320SLi | |
52 | PCMCIA Card Services 2.6.2 | |
53 | Linux dell 1.2.10 #1 Thu Jun 29 20:23:41 PDT 1995 i386 | |
54 | ||
55 | 2. rc.pcmcia may require loading pcmcia_core with io_speed=300: | |
56 | 'insmod pcmcia_core.o io_speed=300'. | |
57 | This will avoid problems with fast systems which causes rx_framecnt | |
58 | to return random values. | |
59 | ||
60 | 3. If hot extraction does not work for you, use 'ifconfig eth0 down' | |
61 | before extraction. | |
62 | ||
63 | 4. There is a bad slow-down problem in this driver. | |
64 | ||
65 | 5. Future: Multicast processing. In the meantime, do _not_ compile your | |
66 | kernel with multicast ip enabled. | |
67 | ||
68 | ------------------------------------------------------------------------------- | |
69 | History | |
70 | ------------------------------------------------------------------------------- | |
71 | Log: nmclan_cs.c,v | |
72 | * 2.5.75-ac1 2003/07/11 Alan Cox <alan@redhat.com> | |
73 | * Fixed hang on card eject as we probe it | |
74 | * Cleaned up to use new style locking. | |
75 | * | |
76 | * Revision 0.16 1995/07/01 06:42:17 rpao | |
77 | * Bug fix: nmclan_reset() called CardServices incorrectly. | |
78 | * | |
79 | * Revision 0.15 1995/05/24 08:09:47 rpao | |
80 | * Re-implement MULTI_TX dev->tbusy handling. | |
81 | * | |
82 | * Revision 0.14 1995/05/23 03:19:30 rpao | |
83 | * Added, in nmclan_config(), "tuple.Attributes = 0;". | |
84 | * Modified MACE ID check to ignore chip revision level. | |
85 | * Avoid tx_free_frames race condition between _start_xmit and _interrupt. | |
86 | * | |
87 | * Revision 0.13 1995/05/18 05:56:34 rpao | |
88 | * Statistics changes. | |
89 | * Bug fix: nmclan_reset did not enable TX and RX: call restore_multicast_list. | |
90 | * Bug fix: mace_interrupt checks ~MACE_IMR_DEFAULT. Fixes driver lockup. | |
91 | * | |
92 | * Revision 0.12 1995/05/14 00:12:23 rpao | |
93 | * Statistics overhaul. | |
94 | * | |
95 | ||
96 | 95/05/13 rpao V0.10a | |
97 | Bug fix: MACE statistics counters used wrong I/O ports. | |
98 | Bug fix: mace_interrupt() needed to allow statistics to be | |
99 | processed without RX or TX interrupts pending. | |
100 | 95/05/11 rpao V0.10 | |
101 | Multiple transmit request processing. | |
102 | Modified statistics to use MACE counters where possible. | |
103 | 95/05/10 rpao V0.09 Bug fix: Must use IO_DATA_PATH_WIDTH_AUTO. | |
104 | *Released | |
105 | 95/05/10 rpao V0.08 | |
106 | Bug fix: Make all non-exported functions private by using | |
107 | static keyword. | |
108 | Bug fix: Test IntrCnt _before_ reading MACE_IR. | |
109 | 95/05/10 rpao V0.07 Statistics. | |
110 | 95/05/09 rpao V0.06 Fix rx_framecnt problem by addition of PCIC wait states. | |
111 | ||
112 | ---------------------------------------------------------------------------- */ | |
113 | ||
114 | #define DRV_NAME "nmclan_cs" | |
115 | #define DRV_VERSION "0.16" | |
116 | ||
117 | ||
118 | /* ---------------------------------------------------------------------------- | |
119 | Conditional Compilation Options | |
120 | ---------------------------------------------------------------------------- */ | |
121 | ||
122 | #define MULTI_TX 0 | |
123 | #define RESET_ON_TIMEOUT 1 | |
124 | #define TX_INTERRUPTABLE 1 | |
125 | #define RESET_XILINX 0 | |
126 | ||
127 | /* ---------------------------------------------------------------------------- | |
128 | Include Files | |
129 | ---------------------------------------------------------------------------- */ | |
130 | ||
131 | #include <linux/module.h> | |
132 | #include <linux/kernel.h> | |
133 | #include <linux/init.h> | |
134 | #include <linux/ptrace.h> | |
135 | #include <linux/slab.h> | |
136 | #include <linux/string.h> | |
137 | #include <linux/timer.h> | |
138 | #include <linux/interrupt.h> | |
139 | #include <linux/in.h> | |
140 | #include <linux/delay.h> | |
141 | #include <linux/ethtool.h> | |
142 | #include <linux/netdevice.h> | |
143 | #include <linux/etherdevice.h> | |
144 | #include <linux/skbuff.h> | |
145 | #include <linux/if_arp.h> | |
146 | #include <linux/ioport.h> | |
147 | #include <linux/bitops.h> | |
148 | ||
1da177e4 LT |
149 | #include <pcmcia/cs_types.h> |
150 | #include <pcmcia/cs.h> | |
151 | #include <pcmcia/cisreg.h> | |
152 | #include <pcmcia/cistpl.h> | |
153 | #include <pcmcia/ds.h> | |
154 | ||
155 | #include <asm/uaccess.h> | |
156 | #include <asm/io.h> | |
157 | #include <asm/system.h> | |
158 | ||
159 | /* ---------------------------------------------------------------------------- | |
160 | Defines | |
161 | ---------------------------------------------------------------------------- */ | |
162 | ||
163 | #define ETHER_ADDR_LEN ETH_ALEN | |
164 | /* 6 bytes in an Ethernet Address */ | |
165 | #define MACE_LADRF_LEN 8 | |
166 | /* 8 bytes in Logical Address Filter */ | |
167 | ||
168 | /* Loop Control Defines */ | |
169 | #define MACE_MAX_IR_ITERATIONS 10 | |
170 | #define MACE_MAX_RX_ITERATIONS 12 | |
171 | /* | |
172 | TBD: Dean brought this up, and I assumed the hardware would | |
173 | handle it: | |
174 | ||
175 | If MACE_MAX_RX_ITERATIONS is > 1, rx_framecnt may still be | |
176 | non-zero when the isr exits. We may not get another interrupt | |
177 | to process the remaining packets for some time. | |
178 | */ | |
179 | ||
180 | /* | |
181 | The Am2150 has a Xilinx XC3042 field programmable gate array (FPGA) | |
182 | which manages the interface between the MACE and the PCMCIA bus. It | |
183 | also includes buffer management for the 32K x 8 SRAM to control up to | |
184 | four transmit and 12 receive frames at a time. | |
185 | */ | |
186 | #define AM2150_MAX_TX_FRAMES 4 | |
187 | #define AM2150_MAX_RX_FRAMES 12 | |
188 | ||
189 | /* Am2150 Ethernet Card I/O Mapping */ | |
190 | #define AM2150_RCV 0x00 | |
191 | #define AM2150_XMT 0x04 | |
192 | #define AM2150_XMT_SKIP 0x09 | |
193 | #define AM2150_RCV_NEXT 0x0A | |
194 | #define AM2150_RCV_FRAME_COUNT 0x0B | |
195 | #define AM2150_MACE_BANK 0x0C | |
196 | #define AM2150_MACE_BASE 0x10 | |
197 | ||
198 | /* MACE Registers */ | |
199 | #define MACE_RCVFIFO 0 | |
200 | #define MACE_XMTFIFO 1 | |
201 | #define MACE_XMTFC 2 | |
202 | #define MACE_XMTFS 3 | |
203 | #define MACE_XMTRC 4 | |
204 | #define MACE_RCVFC 5 | |
205 | #define MACE_RCVFS 6 | |
206 | #define MACE_FIFOFC 7 | |
207 | #define MACE_IR 8 | |
208 | #define MACE_IMR 9 | |
209 | #define MACE_PR 10 | |
210 | #define MACE_BIUCC 11 | |
211 | #define MACE_FIFOCC 12 | |
212 | #define MACE_MACCC 13 | |
213 | #define MACE_PLSCC 14 | |
214 | #define MACE_PHYCC 15 | |
215 | #define MACE_CHIPIDL 16 | |
216 | #define MACE_CHIPIDH 17 | |
217 | #define MACE_IAC 18 | |
218 | /* Reserved */ | |
219 | #define MACE_LADRF 20 | |
220 | #define MACE_PADR 21 | |
221 | /* Reserved */ | |
222 | /* Reserved */ | |
223 | #define MACE_MPC 24 | |
224 | /* Reserved */ | |
225 | #define MACE_RNTPC 26 | |
226 | #define MACE_RCVCC 27 | |
227 | /* Reserved */ | |
228 | #define MACE_UTR 29 | |
229 | #define MACE_RTR1 30 | |
230 | #define MACE_RTR2 31 | |
231 | ||
232 | /* MACE Bit Masks */ | |
233 | #define MACE_XMTRC_EXDEF 0x80 | |
234 | #define MACE_XMTRC_XMTRC 0x0F | |
235 | ||
236 | #define MACE_XMTFS_XMTSV 0x80 | |
237 | #define MACE_XMTFS_UFLO 0x40 | |
238 | #define MACE_XMTFS_LCOL 0x20 | |
239 | #define MACE_XMTFS_MORE 0x10 | |
240 | #define MACE_XMTFS_ONE 0x08 | |
241 | #define MACE_XMTFS_DEFER 0x04 | |
242 | #define MACE_XMTFS_LCAR 0x02 | |
243 | #define MACE_XMTFS_RTRY 0x01 | |
244 | ||
245 | #define MACE_RCVFS_RCVSTS 0xF000 | |
246 | #define MACE_RCVFS_OFLO 0x8000 | |
247 | #define MACE_RCVFS_CLSN 0x4000 | |
248 | #define MACE_RCVFS_FRAM 0x2000 | |
249 | #define MACE_RCVFS_FCS 0x1000 | |
250 | ||
251 | #define MACE_FIFOFC_RCVFC 0xF0 | |
252 | #define MACE_FIFOFC_XMTFC 0x0F | |
253 | ||
254 | #define MACE_IR_JAB 0x80 | |
255 | #define MACE_IR_BABL 0x40 | |
256 | #define MACE_IR_CERR 0x20 | |
257 | #define MACE_IR_RCVCCO 0x10 | |
258 | #define MACE_IR_RNTPCO 0x08 | |
259 | #define MACE_IR_MPCO 0x04 | |
260 | #define MACE_IR_RCVINT 0x02 | |
261 | #define MACE_IR_XMTINT 0x01 | |
262 | ||
263 | #define MACE_MACCC_PROM 0x80 | |
264 | #define MACE_MACCC_DXMT2PD 0x40 | |
265 | #define MACE_MACCC_EMBA 0x20 | |
266 | #define MACE_MACCC_RESERVED 0x10 | |
267 | #define MACE_MACCC_DRCVPA 0x08 | |
268 | #define MACE_MACCC_DRCVBC 0x04 | |
269 | #define MACE_MACCC_ENXMT 0x02 | |
270 | #define MACE_MACCC_ENRCV 0x01 | |
271 | ||
272 | #define MACE_PHYCC_LNKFL 0x80 | |
273 | #define MACE_PHYCC_DLNKTST 0x40 | |
274 | #define MACE_PHYCC_REVPOL 0x20 | |
275 | #define MACE_PHYCC_DAPC 0x10 | |
276 | #define MACE_PHYCC_LRT 0x08 | |
277 | #define MACE_PHYCC_ASEL 0x04 | |
278 | #define MACE_PHYCC_RWAKE 0x02 | |
279 | #define MACE_PHYCC_AWAKE 0x01 | |
280 | ||
281 | #define MACE_IAC_ADDRCHG 0x80 | |
282 | #define MACE_IAC_PHYADDR 0x04 | |
283 | #define MACE_IAC_LOGADDR 0x02 | |
284 | ||
285 | #define MACE_UTR_RTRE 0x80 | |
286 | #define MACE_UTR_RTRD 0x40 | |
287 | #define MACE_UTR_RPA 0x20 | |
288 | #define MACE_UTR_FCOLL 0x10 | |
289 | #define MACE_UTR_RCVFCSE 0x08 | |
290 | #define MACE_UTR_LOOP_INCL_MENDEC 0x06 | |
291 | #define MACE_UTR_LOOP_NO_MENDEC 0x04 | |
292 | #define MACE_UTR_LOOP_EXTERNAL 0x02 | |
293 | #define MACE_UTR_LOOP_NONE 0x00 | |
294 | #define MACE_UTR_RESERVED 0x01 | |
295 | ||
296 | /* Switch MACE register bank (only 0 and 1 are valid) */ | |
297 | #define MACEBANK(win_num) outb((win_num), ioaddr + AM2150_MACE_BANK) | |
298 | ||
299 | #define MACE_IMR_DEFAULT \ | |
300 | (0xFF - \ | |
301 | ( \ | |
302 | MACE_IR_CERR | \ | |
303 | MACE_IR_RCVCCO | \ | |
304 | MACE_IR_RNTPCO | \ | |
305 | MACE_IR_MPCO | \ | |
306 | MACE_IR_RCVINT | \ | |
307 | MACE_IR_XMTINT \ | |
308 | ) \ | |
309 | ) | |
310 | #undef MACE_IMR_DEFAULT | |
311 | #define MACE_IMR_DEFAULT 0x00 /* New statistics handling: grab everything */ | |
312 | ||
313 | #define TX_TIMEOUT ((400*HZ)/1000) | |
314 | ||
315 | /* ---------------------------------------------------------------------------- | |
316 | Type Definitions | |
317 | ---------------------------------------------------------------------------- */ | |
318 | ||
319 | typedef struct _mace_statistics { | |
320 | /* MACE_XMTFS */ | |
321 | int xmtsv; | |
322 | int uflo; | |
323 | int lcol; | |
324 | int more; | |
325 | int one; | |
326 | int defer; | |
327 | int lcar; | |
328 | int rtry; | |
329 | ||
330 | /* MACE_XMTRC */ | |
331 | int exdef; | |
332 | int xmtrc; | |
333 | ||
334 | /* RFS1--Receive Status (RCVSTS) */ | |
335 | int oflo; | |
336 | int clsn; | |
337 | int fram; | |
338 | int fcs; | |
339 | ||
340 | /* RFS2--Runt Packet Count (RNTPC) */ | |
341 | int rfs_rntpc; | |
342 | ||
343 | /* RFS3--Receive Collision Count (RCVCC) */ | |
344 | int rfs_rcvcc; | |
345 | ||
346 | /* MACE_IR */ | |
347 | int jab; | |
348 | int babl; | |
349 | int cerr; | |
350 | int rcvcco; | |
351 | int rntpco; | |
352 | int mpco; | |
353 | ||
354 | /* MACE_MPC */ | |
355 | int mpc; | |
356 | ||
357 | /* MACE_RNTPC */ | |
358 | int rntpc; | |
359 | ||
360 | /* MACE_RCVCC */ | |
361 | int rcvcc; | |
362 | } mace_statistics; | |
363 | ||
364 | typedef struct _mace_private { | |
fd238232 | 365 | struct pcmcia_device *p_dev; |
1da177e4 LT |
366 | dev_node_t node; |
367 | struct net_device_stats linux_stats; /* Linux statistics counters */ | |
368 | mace_statistics mace_stats; /* MACE chip statistics counters */ | |
369 | ||
370 | /* restore_multicast_list() state variables */ | |
371 | int multicast_ladrf[MACE_LADRF_LEN]; /* Logical address filter */ | |
372 | int multicast_num_addrs; | |
373 | ||
374 | char tx_free_frames; /* Number of free transmit frame buffers */ | |
375 | char tx_irq_disabled; /* MACE TX interrupt disabled */ | |
376 | ||
377 | spinlock_t bank_lock; /* Must be held if you step off bank 0 */ | |
378 | } mace_private; | |
379 | ||
380 | /* ---------------------------------------------------------------------------- | |
381 | Private Global Variables | |
382 | ---------------------------------------------------------------------------- */ | |
383 | ||
384 | #ifdef PCMCIA_DEBUG | |
385 | static char rcsid[] = | |
386 | "nmclan_cs.c,v 0.16 1995/07/01 06:42:17 rpao Exp rpao"; | |
387 | static char *version = | |
388 | DRV_NAME " " DRV_VERSION " (Roger C. Pao)"; | |
389 | #endif | |
390 | ||
f71e1309 | 391 | static const char *if_names[]={ |
1da177e4 LT |
392 | "Auto", "10baseT", "BNC", |
393 | }; | |
394 | ||
395 | /* ---------------------------------------------------------------------------- | |
396 | Parameters | |
397 | These are the parameters that can be set during loading with | |
398 | 'insmod'. | |
399 | ---------------------------------------------------------------------------- */ | |
400 | ||
401 | MODULE_DESCRIPTION("New Media PCMCIA ethernet driver"); | |
402 | MODULE_LICENSE("GPL"); | |
403 | ||
404 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) | |
405 | ||
406 | /* 0=auto, 1=10baseT, 2 = 10base2, default=auto */ | |
407 | INT_MODULE_PARM(if_port, 0); | |
408 | ||
409 | #ifdef PCMCIA_DEBUG | |
410 | INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG); | |
411 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) | |
412 | #else | |
413 | #define DEBUG(n, args...) | |
414 | #endif | |
415 | ||
416 | /* ---------------------------------------------------------------------------- | |
417 | Function Prototypes | |
418 | ---------------------------------------------------------------------------- */ | |
419 | ||
15b99ac1 | 420 | static int nmclan_config(struct pcmcia_device *link); |
fba395ee | 421 | static void nmclan_release(struct pcmcia_device *link); |
1da177e4 LT |
422 | |
423 | static void nmclan_reset(struct net_device *dev); | |
424 | static int mace_config(struct net_device *dev, struct ifmap *map); | |
425 | static int mace_open(struct net_device *dev); | |
426 | static int mace_close(struct net_device *dev); | |
427 | static int mace_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
428 | static void mace_tx_timeout(struct net_device *dev); | |
429 | static irqreturn_t mace_interrupt(int irq, void *dev_id, struct pt_regs *regs); | |
430 | static struct net_device_stats *mace_get_stats(struct net_device *dev); | |
431 | static int mace_rx(struct net_device *dev, unsigned char RxCnt); | |
432 | static void restore_multicast_list(struct net_device *dev); | |
433 | static void set_multicast_list(struct net_device *dev); | |
434 | static struct ethtool_ops netdev_ethtool_ops; | |
435 | ||
436 | ||
cc3b4866 | 437 | static void nmclan_detach(struct pcmcia_device *p_dev); |
1da177e4 LT |
438 | |
439 | /* ---------------------------------------------------------------------------- | |
440 | nmclan_attach | |
441 | Creates an "instance" of the driver, allocating local data | |
442 | structures for one device. The device is registered with Card | |
443 | Services. | |
444 | ---------------------------------------------------------------------------- */ | |
445 | ||
15b99ac1 | 446 | static int nmclan_probe(struct pcmcia_device *link) |
1da177e4 LT |
447 | { |
448 | mace_private *lp; | |
1da177e4 | 449 | struct net_device *dev; |
1da177e4 LT |
450 | |
451 | DEBUG(0, "nmclan_attach()\n"); | |
452 | DEBUG(1, "%s\n", rcsid); | |
453 | ||
454 | /* Create new ethernet device */ | |
455 | dev = alloc_etherdev(sizeof(mace_private)); | |
456 | if (!dev) | |
f8cfa618 | 457 | return -ENOMEM; |
1da177e4 | 458 | lp = netdev_priv(dev); |
fba395ee | 459 | lp->p_dev = link; |
1da177e4 LT |
460 | link->priv = dev; |
461 | ||
462 | spin_lock_init(&lp->bank_lock); | |
463 | link->io.NumPorts1 = 32; | |
464 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
465 | link->io.IOAddrLines = 5; | |
466 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
467 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
468 | link->irq.Handler = &mace_interrupt; | |
469 | link->irq.Instance = dev; | |
470 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
471 | link->conf.IntType = INT_MEMORY_AND_IO; |
472 | link->conf.ConfigIndex = 1; | |
473 | link->conf.Present = PRESENT_OPTION; | |
474 | ||
475 | lp->tx_free_frames=AM2150_MAX_TX_FRAMES; | |
476 | ||
477 | SET_MODULE_OWNER(dev); | |
478 | dev->hard_start_xmit = &mace_start_xmit; | |
479 | dev->set_config = &mace_config; | |
480 | dev->get_stats = &mace_get_stats; | |
481 | dev->set_multicast_list = &set_multicast_list; | |
482 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); | |
483 | dev->open = &mace_open; | |
484 | dev->stop = &mace_close; | |
485 | #ifdef HAVE_TX_TIMEOUT | |
486 | dev->tx_timeout = mace_tx_timeout; | |
487 | dev->watchdog_timeo = TX_TIMEOUT; | |
488 | #endif | |
489 | ||
15b99ac1 | 490 | return nmclan_config(link); |
1da177e4 LT |
491 | } /* nmclan_attach */ |
492 | ||
493 | /* ---------------------------------------------------------------------------- | |
494 | nmclan_detach | |
495 | This deletes a driver "instance". The device is de-registered | |
496 | with Card Services. If it has been released, all local data | |
497 | structures are freed. Otherwise, the structures will be freed | |
498 | when the device is released. | |
499 | ---------------------------------------------------------------------------- */ | |
500 | ||
fba395ee | 501 | static void nmclan_detach(struct pcmcia_device *link) |
1da177e4 LT |
502 | { |
503 | struct net_device *dev = link->priv; | |
1da177e4 LT |
504 | |
505 | DEBUG(0, "nmclan_detach(0x%p)\n", link); | |
506 | ||
fd238232 | 507 | if (link->dev_node) |
1da177e4 LT |
508 | unregister_netdev(dev); |
509 | ||
e2d40963 | 510 | nmclan_release(link); |
1da177e4 | 511 | |
1da177e4 LT |
512 | free_netdev(dev); |
513 | } /* nmclan_detach */ | |
514 | ||
515 | /* ---------------------------------------------------------------------------- | |
516 | mace_read | |
517 | Reads a MACE register. This is bank independent; however, the | |
518 | caller must ensure that this call is not interruptable. We are | |
519 | assuming that during normal operation, the MACE is always in | |
520 | bank 0. | |
521 | ---------------------------------------------------------------------------- */ | |
522 | static int mace_read(mace_private *lp, kio_addr_t ioaddr, int reg) | |
523 | { | |
524 | int data = 0xFF; | |
525 | unsigned long flags; | |
526 | ||
527 | switch (reg >> 4) { | |
528 | case 0: /* register 0-15 */ | |
529 | data = inb(ioaddr + AM2150_MACE_BASE + reg); | |
530 | break; | |
531 | case 1: /* register 16-31 */ | |
532 | spin_lock_irqsave(&lp->bank_lock, flags); | |
533 | MACEBANK(1); | |
534 | data = inb(ioaddr + AM2150_MACE_BASE + (reg & 0x0F)); | |
535 | MACEBANK(0); | |
536 | spin_unlock_irqrestore(&lp->bank_lock, flags); | |
537 | break; | |
538 | } | |
539 | return (data & 0xFF); | |
540 | } /* mace_read */ | |
541 | ||
542 | /* ---------------------------------------------------------------------------- | |
543 | mace_write | |
544 | Writes to a MACE register. This is bank independent; however, | |
545 | the caller must ensure that this call is not interruptable. We | |
546 | are assuming that during normal operation, the MACE is always in | |
547 | bank 0. | |
548 | ---------------------------------------------------------------------------- */ | |
549 | static void mace_write(mace_private *lp, kio_addr_t ioaddr, int reg, int data) | |
550 | { | |
551 | unsigned long flags; | |
552 | ||
553 | switch (reg >> 4) { | |
554 | case 0: /* register 0-15 */ | |
555 | outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + reg); | |
556 | break; | |
557 | case 1: /* register 16-31 */ | |
558 | spin_lock_irqsave(&lp->bank_lock, flags); | |
559 | MACEBANK(1); | |
560 | outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + (reg & 0x0F)); | |
561 | MACEBANK(0); | |
562 | spin_unlock_irqrestore(&lp->bank_lock, flags); | |
563 | break; | |
564 | } | |
565 | } /* mace_write */ | |
566 | ||
567 | /* ---------------------------------------------------------------------------- | |
568 | mace_init | |
569 | Resets the MACE chip. | |
570 | ---------------------------------------------------------------------------- */ | |
571 | static int mace_init(mace_private *lp, kio_addr_t ioaddr, char *enet_addr) | |
572 | { | |
573 | int i; | |
574 | int ct = 0; | |
575 | ||
576 | /* MACE Software reset */ | |
577 | mace_write(lp, ioaddr, MACE_BIUCC, 1); | |
578 | while (mace_read(lp, ioaddr, MACE_BIUCC) & 0x01) { | |
579 | /* Wait for reset bit to be cleared automatically after <= 200ns */; | |
580 | if(++ct > 500) | |
581 | { | |
582 | printk(KERN_ERR "mace: reset failed, card removed ?\n"); | |
583 | return -1; | |
584 | } | |
585 | udelay(1); | |
586 | } | |
587 | mace_write(lp, ioaddr, MACE_BIUCC, 0); | |
588 | ||
589 | /* The Am2150 requires that the MACE FIFOs operate in burst mode. */ | |
590 | mace_write(lp, ioaddr, MACE_FIFOCC, 0x0F); | |
591 | ||
592 | mace_write(lp,ioaddr, MACE_RCVFC, 0); /* Disable Auto Strip Receive */ | |
593 | mace_write(lp, ioaddr, MACE_IMR, 0xFF); /* Disable all interrupts until _open */ | |
594 | ||
595 | /* | |
596 | * Bit 2-1 PORTSEL[1-0] Port Select. | |
597 | * 00 AUI/10Base-2 | |
598 | * 01 10Base-T | |
599 | * 10 DAI Port (reserved in Am2150) | |
600 | * 11 GPSI | |
601 | * For this card, only the first two are valid. | |
602 | * So, PLSCC should be set to | |
603 | * 0x00 for 10Base-2 | |
604 | * 0x02 for 10Base-T | |
605 | * Or just set ASEL in PHYCC below! | |
606 | */ | |
607 | switch (if_port) { | |
608 | case 1: | |
609 | mace_write(lp, ioaddr, MACE_PLSCC, 0x02); | |
610 | break; | |
611 | case 2: | |
612 | mace_write(lp, ioaddr, MACE_PLSCC, 0x00); | |
613 | break; | |
614 | default: | |
615 | mace_write(lp, ioaddr, MACE_PHYCC, /* ASEL */ 4); | |
616 | /* ASEL Auto Select. When set, the PORTSEL[1-0] bits are overridden, | |
617 | and the MACE device will automatically select the operating media | |
618 | interface port. */ | |
619 | break; | |
620 | } | |
621 | ||
622 | mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_PHYADDR); | |
623 | /* Poll ADDRCHG bit */ | |
624 | ct = 0; | |
625 | while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG) | |
626 | { | |
627 | if(++ ct > 500) | |
628 | { | |
629 | printk(KERN_ERR "mace: ADDRCHG timeout, card removed ?\n"); | |
630 | return -1; | |
631 | } | |
632 | } | |
633 | /* Set PADR register */ | |
634 | for (i = 0; i < ETHER_ADDR_LEN; i++) | |
635 | mace_write(lp, ioaddr, MACE_PADR, enet_addr[i]); | |
636 | ||
637 | /* MAC Configuration Control Register should be written last */ | |
638 | /* Let set_multicast_list set this. */ | |
639 | /* mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); */ | |
640 | mace_write(lp, ioaddr, MACE_MACCC, 0x00); | |
641 | return 0; | |
642 | } /* mace_init */ | |
643 | ||
644 | /* ---------------------------------------------------------------------------- | |
645 | nmclan_config | |
646 | This routine is scheduled to run after a CARD_INSERTION event | |
647 | is received, to configure the PCMCIA socket, and to make the | |
648 | ethernet device available to the system. | |
649 | ---------------------------------------------------------------------------- */ | |
650 | ||
651 | #define CS_CHECK(fn, ret) \ | |
652 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) | |
653 | ||
15b99ac1 | 654 | static int nmclan_config(struct pcmcia_device *link) |
1da177e4 | 655 | { |
1da177e4 LT |
656 | struct net_device *dev = link->priv; |
657 | mace_private *lp = netdev_priv(dev); | |
658 | tuple_t tuple; | |
659 | cisparse_t parse; | |
660 | u_char buf[64]; | |
661 | int i, last_ret, last_fn; | |
662 | kio_addr_t ioaddr; | |
663 | ||
664 | DEBUG(0, "nmclan_config(0x%p)\n", link); | |
665 | ||
666 | tuple.Attributes = 0; | |
667 | tuple.TupleData = buf; | |
668 | tuple.TupleDataMax = 64; | |
669 | tuple.TupleOffset = 0; | |
670 | tuple.DesiredTuple = CISTPL_CONFIG; | |
fba395ee DB |
671 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); |
672 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple)); | |
673 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse)); | |
1da177e4 LT |
674 | link->conf.ConfigBase = parse.config.base; |
675 | ||
fba395ee DB |
676 | CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io)); |
677 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); | |
678 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); | |
1da177e4 LT |
679 | dev->irq = link->irq.AssignedIRQ; |
680 | dev->base_addr = link->io.BasePort1; | |
681 | ||
682 | ioaddr = dev->base_addr; | |
683 | ||
684 | /* Read the ethernet address from the CIS. */ | |
685 | tuple.DesiredTuple = 0x80 /* CISTPL_CFTABLE_ENTRY_MISC */; | |
686 | tuple.TupleData = buf; | |
687 | tuple.TupleDataMax = 64; | |
688 | tuple.TupleOffset = 0; | |
fba395ee DB |
689 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); |
690 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple)); | |
1da177e4 LT |
691 | memcpy(dev->dev_addr, tuple.TupleData, ETHER_ADDR_LEN); |
692 | ||
693 | /* Verify configuration by reading the MACE ID. */ | |
694 | { | |
695 | char sig[2]; | |
696 | ||
697 | sig[0] = mace_read(lp, ioaddr, MACE_CHIPIDL); | |
698 | sig[1] = mace_read(lp, ioaddr, MACE_CHIPIDH); | |
699 | if ((sig[0] == 0x40) && ((sig[1] & 0x0F) == 0x09)) { | |
700 | DEBUG(0, "nmclan_cs configured: mace id=%x %x\n", | |
701 | sig[0], sig[1]); | |
702 | } else { | |
703 | printk(KERN_NOTICE "nmclan_cs: mace id not found: %x %x should" | |
704 | " be 0x40 0x?9\n", sig[0], sig[1]); | |
15b99ac1 | 705 | return -ENODEV; |
1da177e4 LT |
706 | } |
707 | } | |
708 | ||
709 | if(mace_init(lp, ioaddr, dev->dev_addr) == -1) | |
710 | goto failed; | |
711 | ||
712 | /* The if_port symbol can be set when the module is loaded */ | |
713 | if (if_port <= 2) | |
714 | dev->if_port = if_port; | |
715 | else | |
716 | printk(KERN_NOTICE "nmclan_cs: invalid if_port requested\n"); | |
717 | ||
fd238232 | 718 | link->dev_node = &lp->node; |
fba395ee | 719 | SET_NETDEV_DEV(dev, &handle_to_dev(link)); |
1da177e4 LT |
720 | |
721 | i = register_netdev(dev); | |
722 | if (i != 0) { | |
723 | printk(KERN_NOTICE "nmclan_cs: register_netdev() failed\n"); | |
fd238232 | 724 | link->dev_node = NULL; |
1da177e4 LT |
725 | goto failed; |
726 | } | |
727 | ||
728 | strcpy(lp->node.dev_name, dev->name); | |
729 | ||
730 | printk(KERN_INFO "%s: nmclan: port %#3lx, irq %d, %s port, hw_addr ", | |
731 | dev->name, dev->base_addr, dev->irq, if_names[dev->if_port]); | |
732 | for (i = 0; i < 6; i++) | |
733 | printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n")); | |
15b99ac1 | 734 | return 0; |
1da177e4 LT |
735 | |
736 | cs_failed: | |
15b99ac1 | 737 | cs_error(link, last_fn, last_ret); |
1da177e4 | 738 | failed: |
15b99ac1 DB |
739 | nmclan_release(link); |
740 | return -ENODEV; | |
1da177e4 LT |
741 | } /* nmclan_config */ |
742 | ||
743 | /* ---------------------------------------------------------------------------- | |
744 | nmclan_release | |
745 | After a card is removed, nmclan_release() will unregister the | |
746 | net device, and release the PCMCIA configuration. If the device | |
747 | is still open, this will be postponed until it is closed. | |
748 | ---------------------------------------------------------------------------- */ | |
fba395ee | 749 | static void nmclan_release(struct pcmcia_device *link) |
1da177e4 | 750 | { |
5f2a71fc | 751 | DEBUG(0, "nmclan_release(0x%p)\n", link); |
fba395ee | 752 | pcmcia_disable_device(link); |
1da177e4 LT |
753 | } |
754 | ||
fba395ee | 755 | static int nmclan_suspend(struct pcmcia_device *link) |
98e4c28b | 756 | { |
98e4c28b DB |
757 | struct net_device *dev = link->priv; |
758 | ||
e2d40963 | 759 | if (link->open) |
8661bb5b | 760 | netif_device_detach(dev); |
98e4c28b DB |
761 | |
762 | return 0; | |
763 | } | |
764 | ||
fba395ee | 765 | static int nmclan_resume(struct pcmcia_device *link) |
98e4c28b | 766 | { |
98e4c28b DB |
767 | struct net_device *dev = link->priv; |
768 | ||
e2d40963 | 769 | if (link->open) { |
8661bb5b DB |
770 | nmclan_reset(dev); |
771 | netif_device_attach(dev); | |
98e4c28b DB |
772 | } |
773 | ||
774 | return 0; | |
775 | } | |
776 | ||
1da177e4 LT |
777 | |
778 | /* ---------------------------------------------------------------------------- | |
779 | nmclan_reset | |
780 | Reset and restore all of the Xilinx and MACE registers. | |
781 | ---------------------------------------------------------------------------- */ | |
782 | static void nmclan_reset(struct net_device *dev) | |
783 | { | |
784 | mace_private *lp = netdev_priv(dev); | |
785 | ||
786 | #if RESET_XILINX | |
fba395ee | 787 | struct pcmcia_device *link = &lp->link; |
1da177e4 LT |
788 | conf_reg_t reg; |
789 | u_long OrigCorValue; | |
790 | ||
791 | /* Save original COR value */ | |
792 | reg.Function = 0; | |
793 | reg.Action = CS_READ; | |
794 | reg.Offset = CISREG_COR; | |
795 | reg.Value = 0; | |
fba395ee | 796 | pcmcia_access_configuration_register(link, ®); |
1da177e4 LT |
797 | OrigCorValue = reg.Value; |
798 | ||
799 | /* Reset Xilinx */ | |
800 | reg.Action = CS_WRITE; | |
801 | reg.Offset = CISREG_COR; | |
802 | DEBUG(1, "nmclan_reset: OrigCorValue=0x%lX, resetting...\n", | |
803 | OrigCorValue); | |
804 | reg.Value = COR_SOFT_RESET; | |
fba395ee | 805 | pcmcia_access_configuration_register(link, ®); |
1da177e4 LT |
806 | /* Need to wait for 20 ms for PCMCIA to finish reset. */ |
807 | ||
808 | /* Restore original COR configuration index */ | |
809 | reg.Value = COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK); | |
fba395ee | 810 | pcmcia_access_configuration_register(link, ®); |
1da177e4 LT |
811 | /* Xilinx is now completely reset along with the MACE chip. */ |
812 | lp->tx_free_frames=AM2150_MAX_TX_FRAMES; | |
813 | ||
814 | #endif /* #if RESET_XILINX */ | |
815 | ||
816 | /* Xilinx is now completely reset along with the MACE chip. */ | |
817 | lp->tx_free_frames=AM2150_MAX_TX_FRAMES; | |
818 | ||
819 | /* Reinitialize the MACE chip for operation. */ | |
820 | mace_init(lp, dev->base_addr, dev->dev_addr); | |
821 | mace_write(lp, dev->base_addr, MACE_IMR, MACE_IMR_DEFAULT); | |
822 | ||
823 | /* Restore the multicast list and enable TX and RX. */ | |
824 | restore_multicast_list(dev); | |
825 | } /* nmclan_reset */ | |
826 | ||
827 | /* ---------------------------------------------------------------------------- | |
828 | mace_config | |
829 | [Someone tell me what this is supposed to do? Is if_port a defined | |
830 | standard? If so, there should be defines to indicate 1=10Base-T, | |
831 | 2=10Base-2, etc. including limited automatic detection.] | |
832 | ---------------------------------------------------------------------------- */ | |
833 | static int mace_config(struct net_device *dev, struct ifmap *map) | |
834 | { | |
835 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { | |
836 | if (map->port <= 2) { | |
837 | dev->if_port = map->port; | |
838 | printk(KERN_INFO "%s: switched to %s port\n", dev->name, | |
839 | if_names[dev->if_port]); | |
840 | } else | |
841 | return -EINVAL; | |
842 | } | |
843 | return 0; | |
844 | } /* mace_config */ | |
845 | ||
846 | /* ---------------------------------------------------------------------------- | |
847 | mace_open | |
848 | Open device driver. | |
849 | ---------------------------------------------------------------------------- */ | |
850 | static int mace_open(struct net_device *dev) | |
851 | { | |
852 | kio_addr_t ioaddr = dev->base_addr; | |
853 | mace_private *lp = netdev_priv(dev); | |
fba395ee | 854 | struct pcmcia_device *link = lp->p_dev; |
1da177e4 | 855 | |
9940ec36 | 856 | if (!pcmcia_dev_present(link)) |
1da177e4 LT |
857 | return -ENODEV; |
858 | ||
859 | link->open++; | |
860 | ||
861 | MACEBANK(0); | |
862 | ||
863 | netif_start_queue(dev); | |
864 | nmclan_reset(dev); | |
865 | ||
866 | return 0; /* Always succeed */ | |
867 | } /* mace_open */ | |
868 | ||
869 | /* ---------------------------------------------------------------------------- | |
870 | mace_close | |
871 | Closes device driver. | |
872 | ---------------------------------------------------------------------------- */ | |
873 | static int mace_close(struct net_device *dev) | |
874 | { | |
875 | kio_addr_t ioaddr = dev->base_addr; | |
876 | mace_private *lp = netdev_priv(dev); | |
fba395ee | 877 | struct pcmcia_device *link = lp->p_dev; |
1da177e4 LT |
878 | |
879 | DEBUG(2, "%s: shutting down ethercard.\n", dev->name); | |
880 | ||
881 | /* Mask off all interrupts from the MACE chip. */ | |
882 | outb(0xFF, ioaddr + AM2150_MACE_BASE + MACE_IMR); | |
883 | ||
884 | link->open--; | |
885 | netif_stop_queue(dev); | |
886 | ||
887 | return 0; | |
888 | } /* mace_close */ | |
889 | ||
890 | static void netdev_get_drvinfo(struct net_device *dev, | |
891 | struct ethtool_drvinfo *info) | |
892 | { | |
893 | strcpy(info->driver, DRV_NAME); | |
894 | strcpy(info->version, DRV_VERSION); | |
895 | sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr); | |
896 | } | |
897 | ||
898 | #ifdef PCMCIA_DEBUG | |
899 | static u32 netdev_get_msglevel(struct net_device *dev) | |
900 | { | |
901 | return pc_debug; | |
902 | } | |
903 | ||
904 | static void netdev_set_msglevel(struct net_device *dev, u32 level) | |
905 | { | |
906 | pc_debug = level; | |
907 | } | |
908 | #endif /* PCMCIA_DEBUG */ | |
909 | ||
910 | static struct ethtool_ops netdev_ethtool_ops = { | |
911 | .get_drvinfo = netdev_get_drvinfo, | |
912 | #ifdef PCMCIA_DEBUG | |
913 | .get_msglevel = netdev_get_msglevel, | |
914 | .set_msglevel = netdev_set_msglevel, | |
915 | #endif /* PCMCIA_DEBUG */ | |
916 | }; | |
917 | ||
918 | /* ---------------------------------------------------------------------------- | |
919 | mace_start_xmit | |
920 | This routine begins the packet transmit function. When completed, | |
921 | it will generate a transmit interrupt. | |
922 | ||
923 | According to /usr/src/linux/net/inet/dev.c, if _start_xmit | |
924 | returns 0, the "packet is now solely the responsibility of the | |
925 | driver." If _start_xmit returns non-zero, the "transmission | |
926 | failed, put skb back into a list." | |
927 | ---------------------------------------------------------------------------- */ | |
928 | ||
929 | static void mace_tx_timeout(struct net_device *dev) | |
930 | { | |
931 | mace_private *lp = netdev_priv(dev); | |
fba395ee | 932 | struct pcmcia_device *link = lp->p_dev; |
1da177e4 LT |
933 | |
934 | printk(KERN_NOTICE "%s: transmit timed out -- ", dev->name); | |
935 | #if RESET_ON_TIMEOUT | |
936 | printk("resetting card\n"); | |
fba395ee | 937 | pcmcia_reset_card(link, NULL); |
1da177e4 LT |
938 | #else /* #if RESET_ON_TIMEOUT */ |
939 | printk("NOT resetting card\n"); | |
940 | #endif /* #if RESET_ON_TIMEOUT */ | |
941 | dev->trans_start = jiffies; | |
942 | netif_wake_queue(dev); | |
943 | } | |
944 | ||
945 | static int mace_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
946 | { | |
947 | mace_private *lp = netdev_priv(dev); | |
948 | kio_addr_t ioaddr = dev->base_addr; | |
949 | ||
950 | netif_stop_queue(dev); | |
951 | ||
952 | DEBUG(3, "%s: mace_start_xmit(length = %ld) called.\n", | |
953 | dev->name, (long)skb->len); | |
954 | ||
955 | #if (!TX_INTERRUPTABLE) | |
956 | /* Disable MACE TX interrupts. */ | |
957 | outb(MACE_IMR_DEFAULT | MACE_IR_XMTINT, | |
958 | ioaddr + AM2150_MACE_BASE + MACE_IMR); | |
959 | lp->tx_irq_disabled=1; | |
960 | #endif /* #if (!TX_INTERRUPTABLE) */ | |
961 | ||
962 | { | |
963 | /* This block must not be interrupted by another transmit request! | |
964 | mace_tx_timeout will take care of timer-based retransmissions from | |
965 | the upper layers. The interrupt handler is guaranteed never to | |
966 | service a transmit interrupt while we are in here. | |
967 | */ | |
968 | ||
969 | lp->linux_stats.tx_bytes += skb->len; | |
970 | lp->tx_free_frames--; | |
971 | ||
972 | /* WARNING: Write the _exact_ number of bytes written in the header! */ | |
973 | /* Put out the word header [must be an outw()] . . . */ | |
974 | outw(skb->len, ioaddr + AM2150_XMT); | |
975 | /* . . . and the packet [may be any combination of outw() and outb()] */ | |
976 | outsw(ioaddr + AM2150_XMT, skb->data, skb->len >> 1); | |
977 | if (skb->len & 1) { | |
978 | /* Odd byte transfer */ | |
979 | outb(skb->data[skb->len-1], ioaddr + AM2150_XMT); | |
980 | } | |
981 | ||
982 | dev->trans_start = jiffies; | |
983 | ||
984 | #if MULTI_TX | |
985 | if (lp->tx_free_frames > 0) | |
986 | netif_start_queue(dev); | |
987 | #endif /* #if MULTI_TX */ | |
988 | } | |
989 | ||
990 | #if (!TX_INTERRUPTABLE) | |
991 | /* Re-enable MACE TX interrupts. */ | |
992 | lp->tx_irq_disabled=0; | |
993 | outb(MACE_IMR_DEFAULT, ioaddr + AM2150_MACE_BASE + MACE_IMR); | |
994 | #endif /* #if (!TX_INTERRUPTABLE) */ | |
995 | ||
996 | dev_kfree_skb(skb); | |
997 | ||
998 | return 0; | |
999 | } /* mace_start_xmit */ | |
1000 | ||
1001 | /* ---------------------------------------------------------------------------- | |
1002 | mace_interrupt | |
1003 | The interrupt handler. | |
1004 | ---------------------------------------------------------------------------- */ | |
1005 | static irqreturn_t mace_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1006 | { | |
1007 | struct net_device *dev = (struct net_device *) dev_id; | |
1008 | mace_private *lp = netdev_priv(dev); | |
1009 | kio_addr_t ioaddr = dev->base_addr; | |
1010 | int status; | |
1011 | int IntrCnt = MACE_MAX_IR_ITERATIONS; | |
1012 | ||
1013 | if (dev == NULL) { | |
1014 | DEBUG(2, "mace_interrupt(): irq 0x%X for unknown device.\n", | |
1015 | irq); | |
1016 | return IRQ_NONE; | |
1017 | } | |
1018 | ||
1019 | if (lp->tx_irq_disabled) { | |
1020 | printk( | |
1021 | (lp->tx_irq_disabled? | |
1022 | KERN_NOTICE "%s: Interrupt with tx_irq_disabled " | |
1023 | "[isr=%02X, imr=%02X]\n": | |
1024 | KERN_NOTICE "%s: Re-entering the interrupt handler " | |
1025 | "[isr=%02X, imr=%02X]\n"), | |
1026 | dev->name, | |
1027 | inb(ioaddr + AM2150_MACE_BASE + MACE_IR), | |
1028 | inb(ioaddr + AM2150_MACE_BASE + MACE_IMR) | |
1029 | ); | |
1030 | /* WARNING: MACE_IR has been read! */ | |
1031 | return IRQ_NONE; | |
1032 | } | |
1033 | ||
1034 | if (!netif_device_present(dev)) { | |
1035 | DEBUG(2, "%s: interrupt from dead card\n", dev->name); | |
1036 | return IRQ_NONE; | |
1037 | } | |
1038 | ||
1039 | do { | |
1040 | /* WARNING: MACE_IR is a READ/CLEAR port! */ | |
1041 | status = inb(ioaddr + AM2150_MACE_BASE + MACE_IR); | |
1042 | ||
1043 | DEBUG(3, "mace_interrupt: irq 0x%X status 0x%X.\n", irq, status); | |
1044 | ||
1045 | if (status & MACE_IR_RCVINT) { | |
1046 | mace_rx(dev, MACE_MAX_RX_ITERATIONS); | |
1047 | } | |
1048 | ||
1049 | if (status & MACE_IR_XMTINT) { | |
1050 | unsigned char fifofc; | |
1051 | unsigned char xmtrc; | |
1052 | unsigned char xmtfs; | |
1053 | ||
1054 | fifofc = inb(ioaddr + AM2150_MACE_BASE + MACE_FIFOFC); | |
1055 | if ((fifofc & MACE_FIFOFC_XMTFC)==0) { | |
1056 | lp->linux_stats.tx_errors++; | |
1057 | outb(0xFF, ioaddr + AM2150_XMT_SKIP); | |
1058 | } | |
1059 | ||
1060 | /* Transmit Retry Count (XMTRC, reg 4) */ | |
1061 | xmtrc = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTRC); | |
1062 | if (xmtrc & MACE_XMTRC_EXDEF) lp->mace_stats.exdef++; | |
1063 | lp->mace_stats.xmtrc += (xmtrc & MACE_XMTRC_XMTRC); | |
1064 | ||
1065 | if ( | |
1066 | (xmtfs = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTFS)) & | |
1067 | MACE_XMTFS_XMTSV /* Transmit Status Valid */ | |
1068 | ) { | |
1069 | lp->mace_stats.xmtsv++; | |
1070 | ||
1071 | if (xmtfs & ~MACE_XMTFS_XMTSV) { | |
1072 | if (xmtfs & MACE_XMTFS_UFLO) { | |
1073 | /* Underflow. Indicates that the Transmit FIFO emptied before | |
1074 | the end of frame was reached. */ | |
1075 | lp->mace_stats.uflo++; | |
1076 | } | |
1077 | if (xmtfs & MACE_XMTFS_LCOL) { | |
1078 | /* Late Collision */ | |
1079 | lp->mace_stats.lcol++; | |
1080 | } | |
1081 | if (xmtfs & MACE_XMTFS_MORE) { | |
1082 | /* MORE than one retry was needed */ | |
1083 | lp->mace_stats.more++; | |
1084 | } | |
1085 | if (xmtfs & MACE_XMTFS_ONE) { | |
1086 | /* Exactly ONE retry occurred */ | |
1087 | lp->mace_stats.one++; | |
1088 | } | |
1089 | if (xmtfs & MACE_XMTFS_DEFER) { | |
1090 | /* Transmission was defered */ | |
1091 | lp->mace_stats.defer++; | |
1092 | } | |
1093 | if (xmtfs & MACE_XMTFS_LCAR) { | |
1094 | /* Loss of carrier */ | |
1095 | lp->mace_stats.lcar++; | |
1096 | } | |
1097 | if (xmtfs & MACE_XMTFS_RTRY) { | |
1098 | /* Retry error: transmit aborted after 16 attempts */ | |
1099 | lp->mace_stats.rtry++; | |
1100 | } | |
1101 | } /* if (xmtfs & ~MACE_XMTFS_XMTSV) */ | |
1102 | ||
1103 | } /* if (xmtfs & MACE_XMTFS_XMTSV) */ | |
1104 | ||
1105 | lp->linux_stats.tx_packets++; | |
1106 | lp->tx_free_frames++; | |
1107 | netif_wake_queue(dev); | |
1108 | } /* if (status & MACE_IR_XMTINT) */ | |
1109 | ||
1110 | if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) { | |
1111 | if (status & MACE_IR_JAB) { | |
1112 | /* Jabber Error. Excessive transmit duration (20-150ms). */ | |
1113 | lp->mace_stats.jab++; | |
1114 | } | |
1115 | if (status & MACE_IR_BABL) { | |
1116 | /* Babble Error. >1518 bytes transmitted. */ | |
1117 | lp->mace_stats.babl++; | |
1118 | } | |
1119 | if (status & MACE_IR_CERR) { | |
1120 | /* Collision Error. CERR indicates the absence of the | |
1121 | Signal Quality Error Test message after a packet | |
1122 | transmission. */ | |
1123 | lp->mace_stats.cerr++; | |
1124 | } | |
1125 | if (status & MACE_IR_RCVCCO) { | |
1126 | /* Receive Collision Count Overflow; */ | |
1127 | lp->mace_stats.rcvcco++; | |
1128 | } | |
1129 | if (status & MACE_IR_RNTPCO) { | |
1130 | /* Runt Packet Count Overflow */ | |
1131 | lp->mace_stats.rntpco++; | |
1132 | } | |
1133 | if (status & MACE_IR_MPCO) { | |
1134 | /* Missed Packet Count Overflow */ | |
1135 | lp->mace_stats.mpco++; | |
1136 | } | |
1137 | } /* if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) */ | |
1138 | ||
1139 | } while ((status & ~MACE_IMR_DEFAULT) && (--IntrCnt)); | |
1140 | ||
1141 | return IRQ_HANDLED; | |
1142 | } /* mace_interrupt */ | |
1143 | ||
1144 | /* ---------------------------------------------------------------------------- | |
1145 | mace_rx | |
1146 | Receives packets. | |
1147 | ---------------------------------------------------------------------------- */ | |
1148 | static int mace_rx(struct net_device *dev, unsigned char RxCnt) | |
1149 | { | |
1150 | mace_private *lp = netdev_priv(dev); | |
1151 | kio_addr_t ioaddr = dev->base_addr; | |
1152 | unsigned char rx_framecnt; | |
1153 | unsigned short rx_status; | |
1154 | ||
1155 | while ( | |
1156 | ((rx_framecnt = inb(ioaddr + AM2150_RCV_FRAME_COUNT)) > 0) && | |
1157 | (rx_framecnt <= 12) && /* rx_framecnt==0xFF if card is extracted. */ | |
1158 | (RxCnt--) | |
1159 | ) { | |
1160 | rx_status = inw(ioaddr + AM2150_RCV); | |
1161 | ||
1162 | DEBUG(3, "%s: in mace_rx(), framecnt 0x%X, rx_status" | |
1163 | " 0x%X.\n", dev->name, rx_framecnt, rx_status); | |
1164 | ||
1165 | if (rx_status & MACE_RCVFS_RCVSTS) { /* Error, update stats. */ | |
1166 | lp->linux_stats.rx_errors++; | |
1167 | if (rx_status & MACE_RCVFS_OFLO) { | |
1168 | lp->mace_stats.oflo++; | |
1169 | } | |
1170 | if (rx_status & MACE_RCVFS_CLSN) { | |
1171 | lp->mace_stats.clsn++; | |
1172 | } | |
1173 | if (rx_status & MACE_RCVFS_FRAM) { | |
1174 | lp->mace_stats.fram++; | |
1175 | } | |
1176 | if (rx_status & MACE_RCVFS_FCS) { | |
1177 | lp->mace_stats.fcs++; | |
1178 | } | |
1179 | } else { | |
1180 | short pkt_len = (rx_status & ~MACE_RCVFS_RCVSTS) - 4; | |
1181 | /* Auto Strip is off, always subtract 4 */ | |
1182 | struct sk_buff *skb; | |
1183 | ||
1184 | lp->mace_stats.rfs_rntpc += inb(ioaddr + AM2150_RCV); | |
1185 | /* runt packet count */ | |
1186 | lp->mace_stats.rfs_rcvcc += inb(ioaddr + AM2150_RCV); | |
1187 | /* rcv collision count */ | |
1188 | ||
1189 | DEBUG(3, " receiving packet size 0x%X rx_status" | |
1190 | " 0x%X.\n", pkt_len, rx_status); | |
1191 | ||
1192 | skb = dev_alloc_skb(pkt_len+2); | |
1193 | ||
1194 | if (skb != NULL) { | |
1195 | skb->dev = dev; | |
1196 | ||
1197 | skb_reserve(skb, 2); | |
1198 | insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1); | |
1199 | if (pkt_len & 1) | |
1200 | *(skb->tail-1) = inb(ioaddr + AM2150_RCV); | |
1201 | skb->protocol = eth_type_trans(skb, dev); | |
1202 | ||
1203 | netif_rx(skb); /* Send the packet to the upper (protocol) layers. */ | |
1204 | ||
1205 | dev->last_rx = jiffies; | |
1206 | lp->linux_stats.rx_packets++; | |
6f258910 | 1207 | lp->linux_stats.rx_bytes += pkt_len; |
1da177e4 LT |
1208 | outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */ |
1209 | continue; | |
1210 | } else { | |
1211 | DEBUG(1, "%s: couldn't allocate a sk_buff of size" | |
1212 | " %d.\n", dev->name, pkt_len); | |
1213 | lp->linux_stats.rx_dropped++; | |
1214 | } | |
1215 | } | |
1216 | outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */ | |
1217 | } /* while */ | |
1218 | ||
1219 | return 0; | |
1220 | } /* mace_rx */ | |
1221 | ||
1222 | /* ---------------------------------------------------------------------------- | |
1223 | pr_linux_stats | |
1224 | ---------------------------------------------------------------------------- */ | |
1225 | static void pr_linux_stats(struct net_device_stats *pstats) | |
1226 | { | |
1227 | DEBUG(2, "pr_linux_stats\n"); | |
1228 | DEBUG(2, " rx_packets=%-7ld tx_packets=%ld\n", | |
1229 | (long)pstats->rx_packets, (long)pstats->tx_packets); | |
1230 | DEBUG(2, " rx_errors=%-7ld tx_errors=%ld\n", | |
1231 | (long)pstats->rx_errors, (long)pstats->tx_errors); | |
1232 | DEBUG(2, " rx_dropped=%-7ld tx_dropped=%ld\n", | |
1233 | (long)pstats->rx_dropped, (long)pstats->tx_dropped); | |
1234 | DEBUG(2, " multicast=%-7ld collisions=%ld\n", | |
1235 | (long)pstats->multicast, (long)pstats->collisions); | |
1236 | ||
1237 | DEBUG(2, " rx_length_errors=%-7ld rx_over_errors=%ld\n", | |
1238 | (long)pstats->rx_length_errors, (long)pstats->rx_over_errors); | |
1239 | DEBUG(2, " rx_crc_errors=%-7ld rx_frame_errors=%ld\n", | |
1240 | (long)pstats->rx_crc_errors, (long)pstats->rx_frame_errors); | |
1241 | DEBUG(2, " rx_fifo_errors=%-7ld rx_missed_errors=%ld\n", | |
1242 | (long)pstats->rx_fifo_errors, (long)pstats->rx_missed_errors); | |
1243 | ||
1244 | DEBUG(2, " tx_aborted_errors=%-7ld tx_carrier_errors=%ld\n", | |
1245 | (long)pstats->tx_aborted_errors, (long)pstats->tx_carrier_errors); | |
1246 | DEBUG(2, " tx_fifo_errors=%-7ld tx_heartbeat_errors=%ld\n", | |
1247 | (long)pstats->tx_fifo_errors, (long)pstats->tx_heartbeat_errors); | |
1248 | DEBUG(2, " tx_window_errors=%ld\n", | |
1249 | (long)pstats->tx_window_errors); | |
1250 | } /* pr_linux_stats */ | |
1251 | ||
1252 | /* ---------------------------------------------------------------------------- | |
1253 | pr_mace_stats | |
1254 | ---------------------------------------------------------------------------- */ | |
1255 | static void pr_mace_stats(mace_statistics *pstats) | |
1256 | { | |
1257 | DEBUG(2, "pr_mace_stats\n"); | |
1258 | ||
1259 | DEBUG(2, " xmtsv=%-7d uflo=%d\n", | |
1260 | pstats->xmtsv, pstats->uflo); | |
1261 | DEBUG(2, " lcol=%-7d more=%d\n", | |
1262 | pstats->lcol, pstats->more); | |
1263 | DEBUG(2, " one=%-7d defer=%d\n", | |
1264 | pstats->one, pstats->defer); | |
1265 | DEBUG(2, " lcar=%-7d rtry=%d\n", | |
1266 | pstats->lcar, pstats->rtry); | |
1267 | ||
1268 | /* MACE_XMTRC */ | |
1269 | DEBUG(2, " exdef=%-7d xmtrc=%d\n", | |
1270 | pstats->exdef, pstats->xmtrc); | |
1271 | ||
1272 | /* RFS1--Receive Status (RCVSTS) */ | |
1273 | DEBUG(2, " oflo=%-7d clsn=%d\n", | |
1274 | pstats->oflo, pstats->clsn); | |
1275 | DEBUG(2, " fram=%-7d fcs=%d\n", | |
1276 | pstats->fram, pstats->fcs); | |
1277 | ||
1278 | /* RFS2--Runt Packet Count (RNTPC) */ | |
1279 | /* RFS3--Receive Collision Count (RCVCC) */ | |
1280 | DEBUG(2, " rfs_rntpc=%-7d rfs_rcvcc=%d\n", | |
1281 | pstats->rfs_rntpc, pstats->rfs_rcvcc); | |
1282 | ||
1283 | /* MACE_IR */ | |
1284 | DEBUG(2, " jab=%-7d babl=%d\n", | |
1285 | pstats->jab, pstats->babl); | |
1286 | DEBUG(2, " cerr=%-7d rcvcco=%d\n", | |
1287 | pstats->cerr, pstats->rcvcco); | |
1288 | DEBUG(2, " rntpco=%-7d mpco=%d\n", | |
1289 | pstats->rntpco, pstats->mpco); | |
1290 | ||
1291 | /* MACE_MPC */ | |
1292 | DEBUG(2, " mpc=%d\n", pstats->mpc); | |
1293 | ||
1294 | /* MACE_RNTPC */ | |
1295 | DEBUG(2, " rntpc=%d\n", pstats->rntpc); | |
1296 | ||
1297 | /* MACE_RCVCC */ | |
1298 | DEBUG(2, " rcvcc=%d\n", pstats->rcvcc); | |
1299 | ||
1300 | } /* pr_mace_stats */ | |
1301 | ||
1302 | /* ---------------------------------------------------------------------------- | |
1303 | update_stats | |
1304 | Update statistics. We change to register window 1, so this | |
1305 | should be run single-threaded if the device is active. This is | |
1306 | expected to be a rare operation, and it's simpler for the rest | |
1307 | of the driver to assume that window 0 is always valid rather | |
1308 | than use a special window-state variable. | |
1309 | ||
1310 | oflo & uflo should _never_ occur since it would mean the Xilinx | |
1311 | was not able to transfer data between the MACE FIFO and the | |
1312 | card's SRAM fast enough. If this happens, something is | |
1313 | seriously wrong with the hardware. | |
1314 | ---------------------------------------------------------------------------- */ | |
1315 | static void update_stats(kio_addr_t ioaddr, struct net_device *dev) | |
1316 | { | |
1317 | mace_private *lp = netdev_priv(dev); | |
1318 | ||
1319 | lp->mace_stats.rcvcc += mace_read(lp, ioaddr, MACE_RCVCC); | |
1320 | lp->mace_stats.rntpc += mace_read(lp, ioaddr, MACE_RNTPC); | |
1321 | lp->mace_stats.mpc += mace_read(lp, ioaddr, MACE_MPC); | |
1322 | /* At this point, mace_stats is fully updated for this call. | |
1323 | We may now update the linux_stats. */ | |
1324 | ||
1325 | /* The MACE has no equivalent for linux_stats field which are commented | |
1326 | out. */ | |
1327 | ||
1328 | /* lp->linux_stats.multicast; */ | |
1329 | lp->linux_stats.collisions = | |
1330 | lp->mace_stats.rcvcco * 256 + lp->mace_stats.rcvcc; | |
1331 | /* Collision: The MACE may retry sending a packet 15 times | |
1332 | before giving up. The retry count is in XMTRC. | |
1333 | Does each retry constitute a collision? | |
1334 | If so, why doesn't the RCVCC record these collisions? */ | |
1335 | ||
1336 | /* detailed rx_errors: */ | |
1337 | lp->linux_stats.rx_length_errors = | |
1338 | lp->mace_stats.rntpco * 256 + lp->mace_stats.rntpc; | |
1339 | /* lp->linux_stats.rx_over_errors */ | |
1340 | lp->linux_stats.rx_crc_errors = lp->mace_stats.fcs; | |
1341 | lp->linux_stats.rx_frame_errors = lp->mace_stats.fram; | |
1342 | lp->linux_stats.rx_fifo_errors = lp->mace_stats.oflo; | |
1343 | lp->linux_stats.rx_missed_errors = | |
1344 | lp->mace_stats.mpco * 256 + lp->mace_stats.mpc; | |
1345 | ||
1346 | /* detailed tx_errors */ | |
1347 | lp->linux_stats.tx_aborted_errors = lp->mace_stats.rtry; | |
1348 | lp->linux_stats.tx_carrier_errors = lp->mace_stats.lcar; | |
1349 | /* LCAR usually results from bad cabling. */ | |
1350 | lp->linux_stats.tx_fifo_errors = lp->mace_stats.uflo; | |
1351 | lp->linux_stats.tx_heartbeat_errors = lp->mace_stats.cerr; | |
1352 | /* lp->linux_stats.tx_window_errors; */ | |
1353 | ||
1354 | return; | |
1355 | } /* update_stats */ | |
1356 | ||
1357 | /* ---------------------------------------------------------------------------- | |
1358 | mace_get_stats | |
1359 | Gathers ethernet statistics from the MACE chip. | |
1360 | ---------------------------------------------------------------------------- */ | |
1361 | static struct net_device_stats *mace_get_stats(struct net_device *dev) | |
1362 | { | |
1363 | mace_private *lp = netdev_priv(dev); | |
1364 | ||
1365 | update_stats(dev->base_addr, dev); | |
1366 | ||
1367 | DEBUG(1, "%s: updating the statistics.\n", dev->name); | |
1368 | pr_linux_stats(&lp->linux_stats); | |
1369 | pr_mace_stats(&lp->mace_stats); | |
1370 | ||
1371 | return &lp->linux_stats; | |
1372 | } /* net_device_stats */ | |
1373 | ||
1374 | /* ---------------------------------------------------------------------------- | |
1375 | updateCRC | |
1376 | Modified from Am79C90 data sheet. | |
1377 | ---------------------------------------------------------------------------- */ | |
1378 | ||
1379 | #ifdef BROKEN_MULTICAST | |
1380 | ||
1381 | static void updateCRC(int *CRC, int bit) | |
1382 | { | |
1383 | int poly[]={ | |
1384 | 1,1,1,0, 1,1,0,1, | |
1385 | 1,0,1,1, 1,0,0,0, | |
1386 | 1,0,0,0, 0,0,1,1, | |
1387 | 0,0,1,0, 0,0,0,0 | |
1388 | }; /* CRC polynomial. poly[n] = coefficient of the x**n term of the | |
1389 | CRC generator polynomial. */ | |
1390 | ||
1391 | int j; | |
1392 | ||
1393 | /* shift CRC and control bit (CRC[32]) */ | |
1394 | for (j = 32; j > 0; j--) | |
1395 | CRC[j] = CRC[j-1]; | |
1396 | CRC[0] = 0; | |
1397 | ||
1398 | /* If bit XOR(control bit) = 1, set CRC = CRC XOR polynomial. */ | |
1399 | if (bit ^ CRC[32]) | |
1400 | for (j = 0; j < 32; j++) | |
1401 | CRC[j] ^= poly[j]; | |
1402 | } /* updateCRC */ | |
1403 | ||
1404 | /* ---------------------------------------------------------------------------- | |
1405 | BuildLAF | |
1406 | Build logical address filter. | |
1407 | Modified from Am79C90 data sheet. | |
1408 | ||
1409 | Input | |
1410 | ladrf: logical address filter (contents initialized to 0) | |
1411 | adr: ethernet address | |
1412 | ---------------------------------------------------------------------------- */ | |
1413 | static void BuildLAF(int *ladrf, int *adr) | |
1414 | { | |
1415 | int CRC[33]={1}; /* CRC register, 1 word/bit + extra control bit */ | |
1416 | ||
1417 | int i, byte; /* temporary array indices */ | |
1418 | int hashcode; /* the output object */ | |
1419 | ||
1420 | CRC[32]=0; | |
1421 | ||
1422 | for (byte = 0; byte < 6; byte++) | |
1423 | for (i = 0; i < 8; i++) | |
1424 | updateCRC(CRC, (adr[byte] >> i) & 1); | |
1425 | ||
1426 | hashcode = 0; | |
1427 | for (i = 0; i < 6; i++) | |
1428 | hashcode = (hashcode << 1) + CRC[i]; | |
1429 | ||
1430 | byte = hashcode >> 3; | |
1431 | ladrf[byte] |= (1 << (hashcode & 7)); | |
1432 | ||
1433 | #ifdef PCMCIA_DEBUG | |
1434 | if (pc_debug > 2) { | |
1435 | printk(KERN_DEBUG " adr ="); | |
1436 | for (i = 0; i < 6; i++) | |
1437 | printk(" %02X", adr[i]); | |
1438 | printk("\n" KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63]" | |
1439 | " =", hashcode); | |
1440 | for (i = 0; i < 8; i++) | |
1441 | printk(" %02X", ladrf[i]); | |
1442 | printk("\n"); | |
1443 | } | |
1444 | #endif | |
1445 | } /* BuildLAF */ | |
1446 | ||
1447 | /* ---------------------------------------------------------------------------- | |
1448 | restore_multicast_list | |
1449 | Restores the multicast filter for MACE chip to the last | |
1450 | set_multicast_list() call. | |
1451 | ||
1452 | Input | |
1453 | multicast_num_addrs | |
1454 | multicast_ladrf[] | |
1455 | ---------------------------------------------------------------------------- */ | |
1456 | static void restore_multicast_list(struct net_device *dev) | |
1457 | { | |
1458 | mace_private *lp = netdev_priv(dev); | |
1459 | int num_addrs = lp->multicast_num_addrs; | |
1460 | int *ladrf = lp->multicast_ladrf; | |
1461 | kio_addr_t ioaddr = dev->base_addr; | |
1462 | int i; | |
1463 | ||
1464 | DEBUG(2, "%s: restoring Rx mode to %d addresses.\n", | |
1465 | dev->name, num_addrs); | |
1466 | ||
1467 | if (num_addrs > 0) { | |
1468 | ||
1469 | DEBUG(1, "Attempt to restore multicast list detected.\n"); | |
1470 | ||
1471 | mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_LOGADDR); | |
1472 | /* Poll ADDRCHG bit */ | |
1473 | while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG) | |
1474 | ; | |
1475 | /* Set LADRF register */ | |
1476 | for (i = 0; i < MACE_LADRF_LEN; i++) | |
1477 | mace_write(lp, ioaddr, MACE_LADRF, ladrf[i]); | |
1478 | ||
1479 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_RCVFCSE | MACE_UTR_LOOP_EXTERNAL); | |
1480 | mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); | |
1481 | ||
1482 | } else if (num_addrs < 0) { | |
1483 | ||
1484 | /* Promiscuous mode: receive all packets */ | |
1485 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1486 | mace_write(lp, ioaddr, MACE_MACCC, | |
1487 | MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV | |
1488 | ); | |
1489 | ||
1490 | } else { | |
1491 | ||
1492 | /* Normal mode */ | |
1493 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1494 | mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); | |
1495 | ||
1496 | } | |
1497 | } /* restore_multicast_list */ | |
1498 | ||
1499 | /* ---------------------------------------------------------------------------- | |
1500 | set_multicast_list | |
1501 | Set or clear the multicast filter for this adaptor. | |
1502 | ||
1503 | Input | |
1504 | num_addrs == -1 Promiscuous mode, receive all packets | |
1505 | num_addrs == 0 Normal mode, clear multicast list | |
1506 | num_addrs > 0 Multicast mode, receive normal and MC packets, and do | |
1507 | best-effort filtering. | |
1508 | Output | |
1509 | multicast_num_addrs | |
1510 | multicast_ladrf[] | |
1511 | ---------------------------------------------------------------------------- */ | |
1512 | ||
1513 | static void set_multicast_list(struct net_device *dev) | |
1514 | { | |
1515 | mace_private *lp = netdev_priv(dev); | |
1516 | int adr[ETHER_ADDR_LEN] = {0}; /* Ethernet address */ | |
1517 | int i; | |
1518 | struct dev_mc_list *dmi = dev->mc_list; | |
1519 | ||
1520 | #ifdef PCMCIA_DEBUG | |
1521 | if (pc_debug > 1) { | |
1522 | static int old; | |
1523 | if (dev->mc_count != old) { | |
1524 | old = dev->mc_count; | |
1525 | DEBUG(0, "%s: setting Rx mode to %d addresses.\n", | |
1526 | dev->name, old); | |
1527 | } | |
1528 | } | |
1529 | #endif | |
1530 | ||
1531 | /* Set multicast_num_addrs. */ | |
1532 | lp->multicast_num_addrs = dev->mc_count; | |
1533 | ||
1534 | /* Set multicast_ladrf. */ | |
1535 | if (num_addrs > 0) { | |
1536 | /* Calculate multicast logical address filter */ | |
1537 | memset(lp->multicast_ladrf, 0, MACE_LADRF_LEN); | |
1538 | for (i = 0; i < dev->mc_count; i++) { | |
1539 | memcpy(adr, dmi->dmi_addr, ETHER_ADDR_LEN); | |
1540 | dmi = dmi->next; | |
1541 | BuildLAF(lp->multicast_ladrf, adr); | |
1542 | } | |
1543 | } | |
1544 | ||
1545 | restore_multicast_list(dev); | |
1546 | ||
1547 | } /* set_multicast_list */ | |
1548 | ||
1549 | #endif /* BROKEN_MULTICAST */ | |
1550 | ||
1551 | static void restore_multicast_list(struct net_device *dev) | |
1552 | { | |
1553 | kio_addr_t ioaddr = dev->base_addr; | |
1554 | mace_private *lp = netdev_priv(dev); | |
1555 | ||
1556 | DEBUG(2, "%s: restoring Rx mode to %d addresses.\n", dev->name, | |
1557 | lp->multicast_num_addrs); | |
1558 | ||
1559 | if (dev->flags & IFF_PROMISC) { | |
1560 | /* Promiscuous mode: receive all packets */ | |
1561 | mace_write(lp,ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1562 | mace_write(lp, ioaddr, MACE_MACCC, | |
1563 | MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV | |
1564 | ); | |
1565 | } else { | |
1566 | /* Normal mode */ | |
1567 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1568 | mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); | |
1569 | } | |
1570 | } /* restore_multicast_list */ | |
1571 | ||
1572 | static void set_multicast_list(struct net_device *dev) | |
1573 | { | |
1574 | mace_private *lp = netdev_priv(dev); | |
1575 | ||
1576 | #ifdef PCMCIA_DEBUG | |
1577 | if (pc_debug > 1) { | |
1578 | static int old; | |
1579 | if (dev->mc_count != old) { | |
1580 | old = dev->mc_count; | |
1581 | DEBUG(0, "%s: setting Rx mode to %d addresses.\n", | |
1582 | dev->name, old); | |
1583 | } | |
1584 | } | |
1585 | #endif | |
1586 | ||
1587 | lp->multicast_num_addrs = dev->mc_count; | |
1588 | restore_multicast_list(dev); | |
1589 | ||
1590 | } /* set_multicast_list */ | |
1591 | ||
a58e26cb DB |
1592 | static struct pcmcia_device_id nmclan_ids[] = { |
1593 | PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Ethernet", 0x085a850b, 0x00b2e941), | |
d277ad0e | 1594 | PCMCIA_DEVICE_PROD_ID12("Portable Add-ons", "Ethernet+", 0xebf1d60, 0xad673aaf), |
a58e26cb DB |
1595 | PCMCIA_DEVICE_NULL, |
1596 | }; | |
1597 | MODULE_DEVICE_TABLE(pcmcia, nmclan_ids); | |
1598 | ||
1da177e4 LT |
1599 | static struct pcmcia_driver nmclan_cs_driver = { |
1600 | .owner = THIS_MODULE, | |
1601 | .drv = { | |
1602 | .name = "nmclan_cs", | |
1603 | }, | |
15b99ac1 | 1604 | .probe = nmclan_probe, |
cc3b4866 | 1605 | .remove = nmclan_detach, |
a58e26cb | 1606 | .id_table = nmclan_ids, |
98e4c28b DB |
1607 | .suspend = nmclan_suspend, |
1608 | .resume = nmclan_resume, | |
1da177e4 LT |
1609 | }; |
1610 | ||
1611 | static int __init init_nmclan_cs(void) | |
1612 | { | |
1613 | return pcmcia_register_driver(&nmclan_cs_driver); | |
1614 | } | |
1615 | ||
1616 | static void __exit exit_nmclan_cs(void) | |
1617 | { | |
1618 | pcmcia_unregister_driver(&nmclan_cs_driver); | |
1da177e4 LT |
1619 | } |
1620 | ||
1621 | module_init(init_nmclan_cs); | |
1622 | module_exit(exit_nmclan_cs); |