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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 | |
113aa838 | 72 | * 2.5.75-ac1 2003/07/11 Alan Cox <alan@lxorguk.ukuu.org.uk> |
1da177e4 LT |
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 | struct net_device_stats linux_stats; /* Linux statistics counters */ |
367 | mace_statistics mace_stats; /* MACE chip statistics counters */ | |
368 | ||
369 | /* restore_multicast_list() state variables */ | |
370 | int multicast_ladrf[MACE_LADRF_LEN]; /* Logical address filter */ | |
371 | int multicast_num_addrs; | |
372 | ||
373 | char tx_free_frames; /* Number of free transmit frame buffers */ | |
374 | char tx_irq_disabled; /* MACE TX interrupt disabled */ | |
375 | ||
376 | spinlock_t bank_lock; /* Must be held if you step off bank 0 */ | |
377 | } mace_private; | |
378 | ||
379 | /* ---------------------------------------------------------------------------- | |
380 | Private Global Variables | |
381 | ---------------------------------------------------------------------------- */ | |
382 | ||
f71e1309 | 383 | static const char *if_names[]={ |
1da177e4 LT |
384 | "Auto", "10baseT", "BNC", |
385 | }; | |
386 | ||
387 | /* ---------------------------------------------------------------------------- | |
388 | Parameters | |
389 | These are the parameters that can be set during loading with | |
390 | 'insmod'. | |
391 | ---------------------------------------------------------------------------- */ | |
392 | ||
393 | MODULE_DESCRIPTION("New Media PCMCIA ethernet driver"); | |
394 | MODULE_LICENSE("GPL"); | |
395 | ||
396 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) | |
397 | ||
398 | /* 0=auto, 1=10baseT, 2 = 10base2, default=auto */ | |
399 | INT_MODULE_PARM(if_port, 0); | |
400 | ||
1da177e4 LT |
401 | |
402 | /* ---------------------------------------------------------------------------- | |
403 | Function Prototypes | |
404 | ---------------------------------------------------------------------------- */ | |
405 | ||
15b99ac1 | 406 | static int nmclan_config(struct pcmcia_device *link); |
fba395ee | 407 | static void nmclan_release(struct pcmcia_device *link); |
1da177e4 LT |
408 | |
409 | static void nmclan_reset(struct net_device *dev); | |
410 | static int mace_config(struct net_device *dev, struct ifmap *map); | |
411 | static int mace_open(struct net_device *dev); | |
412 | static int mace_close(struct net_device *dev); | |
dbf02fae SH |
413 | static netdev_tx_t mace_start_xmit(struct sk_buff *skb, |
414 | struct net_device *dev); | |
1da177e4 | 415 | static void mace_tx_timeout(struct net_device *dev); |
7d12e780 | 416 | static irqreturn_t mace_interrupt(int irq, void *dev_id); |
1da177e4 LT |
417 | static struct net_device_stats *mace_get_stats(struct net_device *dev); |
418 | static int mace_rx(struct net_device *dev, unsigned char RxCnt); | |
419 | static void restore_multicast_list(struct net_device *dev); | |
420 | static void set_multicast_list(struct net_device *dev); | |
7282d491 | 421 | static const struct ethtool_ops netdev_ethtool_ops; |
1da177e4 LT |
422 | |
423 | ||
cc3b4866 | 424 | static void nmclan_detach(struct pcmcia_device *p_dev); |
1da177e4 | 425 | |
28b1801d SH |
426 | static const struct net_device_ops mace_netdev_ops = { |
427 | .ndo_open = mace_open, | |
428 | .ndo_stop = mace_close, | |
429 | .ndo_start_xmit = mace_start_xmit, | |
430 | .ndo_tx_timeout = mace_tx_timeout, | |
431 | .ndo_set_config = mace_config, | |
432 | .ndo_get_stats = mace_get_stats, | |
433 | .ndo_set_multicast_list = set_multicast_list, | |
434 | .ndo_change_mtu = eth_change_mtu, | |
435 | .ndo_set_mac_address = eth_mac_addr, | |
436 | .ndo_validate_addr = eth_validate_addr, | |
437 | }; | |
438 | ||
1da177e4 LT |
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 | 450 | |
dd0fab5b | 451 | dev_dbg(&link->dev, "nmclan_attach()\n"); |
1da177e4 LT |
452 | |
453 | /* Create new ethernet device */ | |
454 | dev = alloc_etherdev(sizeof(mace_private)); | |
455 | if (!dev) | |
f8cfa618 | 456 | return -ENOMEM; |
1da177e4 | 457 | lp = netdev_priv(dev); |
fba395ee | 458 | lp->p_dev = link; |
1da177e4 LT |
459 | link->priv = dev; |
460 | ||
461 | spin_lock_init(&lp->bank_lock); | |
462 | link->io.NumPorts1 = 32; | |
463 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
464 | link->io.IOAddrLines = 5; | |
1da177e4 | 465 | link->conf.Attributes = CONF_ENABLE_IRQ; |
1da177e4 LT |
466 | link->conf.IntType = INT_MEMORY_AND_IO; |
467 | link->conf.ConfigIndex = 1; | |
468 | link->conf.Present = PRESENT_OPTION; | |
469 | ||
470 | lp->tx_free_frames=AM2150_MAX_TX_FRAMES; | |
471 | ||
28b1801d | 472 | dev->netdev_ops = &mace_netdev_ops; |
1da177e4 | 473 | SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops); |
1da177e4 | 474 | dev->watchdog_timeo = TX_TIMEOUT; |
1da177e4 | 475 | |
15b99ac1 | 476 | return nmclan_config(link); |
1da177e4 LT |
477 | } /* nmclan_attach */ |
478 | ||
479 | /* ---------------------------------------------------------------------------- | |
480 | nmclan_detach | |
481 | This deletes a driver "instance". The device is de-registered | |
482 | with Card Services. If it has been released, all local data | |
483 | structures are freed. Otherwise, the structures will be freed | |
484 | when the device is released. | |
485 | ---------------------------------------------------------------------------- */ | |
486 | ||
fba395ee | 487 | static void nmclan_detach(struct pcmcia_device *link) |
1da177e4 LT |
488 | { |
489 | struct net_device *dev = link->priv; | |
1da177e4 | 490 | |
dd0fab5b | 491 | dev_dbg(&link->dev, "nmclan_detach\n"); |
1da177e4 | 492 | |
c7c2fa07 | 493 | unregister_netdev(dev); |
1da177e4 | 494 | |
e2d40963 | 495 | nmclan_release(link); |
1da177e4 | 496 | |
1da177e4 LT |
497 | free_netdev(dev); |
498 | } /* nmclan_detach */ | |
499 | ||
500 | /* ---------------------------------------------------------------------------- | |
501 | mace_read | |
502 | Reads a MACE register. This is bank independent; however, the | |
503 | caller must ensure that this call is not interruptable. We are | |
504 | assuming that during normal operation, the MACE is always in | |
505 | bank 0. | |
506 | ---------------------------------------------------------------------------- */ | |
906da809 | 507 | static int mace_read(mace_private *lp, unsigned int ioaddr, int reg) |
1da177e4 LT |
508 | { |
509 | int data = 0xFF; | |
510 | unsigned long flags; | |
511 | ||
512 | switch (reg >> 4) { | |
513 | case 0: /* register 0-15 */ | |
514 | data = inb(ioaddr + AM2150_MACE_BASE + reg); | |
515 | break; | |
516 | case 1: /* register 16-31 */ | |
517 | spin_lock_irqsave(&lp->bank_lock, flags); | |
518 | MACEBANK(1); | |
519 | data = inb(ioaddr + AM2150_MACE_BASE + (reg & 0x0F)); | |
520 | MACEBANK(0); | |
521 | spin_unlock_irqrestore(&lp->bank_lock, flags); | |
522 | break; | |
523 | } | |
524 | return (data & 0xFF); | |
525 | } /* mace_read */ | |
526 | ||
527 | /* ---------------------------------------------------------------------------- | |
528 | mace_write | |
529 | Writes to a MACE register. This is bank independent; however, | |
530 | the caller must ensure that this call is not interruptable. We | |
531 | are assuming that during normal operation, the MACE is always in | |
532 | bank 0. | |
533 | ---------------------------------------------------------------------------- */ | |
906da809 OJ |
534 | static void mace_write(mace_private *lp, unsigned int ioaddr, int reg, |
535 | int data) | |
1da177e4 LT |
536 | { |
537 | unsigned long flags; | |
538 | ||
539 | switch (reg >> 4) { | |
540 | case 0: /* register 0-15 */ | |
541 | outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + reg); | |
542 | break; | |
543 | case 1: /* register 16-31 */ | |
544 | spin_lock_irqsave(&lp->bank_lock, flags); | |
545 | MACEBANK(1); | |
546 | outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + (reg & 0x0F)); | |
547 | MACEBANK(0); | |
548 | spin_unlock_irqrestore(&lp->bank_lock, flags); | |
549 | break; | |
550 | } | |
551 | } /* mace_write */ | |
552 | ||
553 | /* ---------------------------------------------------------------------------- | |
554 | mace_init | |
555 | Resets the MACE chip. | |
556 | ---------------------------------------------------------------------------- */ | |
906da809 | 557 | static int mace_init(mace_private *lp, unsigned int ioaddr, char *enet_addr) |
1da177e4 LT |
558 | { |
559 | int i; | |
560 | int ct = 0; | |
561 | ||
562 | /* MACE Software reset */ | |
563 | mace_write(lp, ioaddr, MACE_BIUCC, 1); | |
564 | while (mace_read(lp, ioaddr, MACE_BIUCC) & 0x01) { | |
565 | /* Wait for reset bit to be cleared automatically after <= 200ns */; | |
566 | if(++ct > 500) | |
567 | { | |
568 | printk(KERN_ERR "mace: reset failed, card removed ?\n"); | |
569 | return -1; | |
570 | } | |
571 | udelay(1); | |
572 | } | |
573 | mace_write(lp, ioaddr, MACE_BIUCC, 0); | |
574 | ||
575 | /* The Am2150 requires that the MACE FIFOs operate in burst mode. */ | |
576 | mace_write(lp, ioaddr, MACE_FIFOCC, 0x0F); | |
577 | ||
578 | mace_write(lp,ioaddr, MACE_RCVFC, 0); /* Disable Auto Strip Receive */ | |
579 | mace_write(lp, ioaddr, MACE_IMR, 0xFF); /* Disable all interrupts until _open */ | |
580 | ||
581 | /* | |
582 | * Bit 2-1 PORTSEL[1-0] Port Select. | |
583 | * 00 AUI/10Base-2 | |
584 | * 01 10Base-T | |
585 | * 10 DAI Port (reserved in Am2150) | |
586 | * 11 GPSI | |
587 | * For this card, only the first two are valid. | |
588 | * So, PLSCC should be set to | |
589 | * 0x00 for 10Base-2 | |
590 | * 0x02 for 10Base-T | |
591 | * Or just set ASEL in PHYCC below! | |
592 | */ | |
593 | switch (if_port) { | |
594 | case 1: | |
595 | mace_write(lp, ioaddr, MACE_PLSCC, 0x02); | |
596 | break; | |
597 | case 2: | |
598 | mace_write(lp, ioaddr, MACE_PLSCC, 0x00); | |
599 | break; | |
600 | default: | |
601 | mace_write(lp, ioaddr, MACE_PHYCC, /* ASEL */ 4); | |
602 | /* ASEL Auto Select. When set, the PORTSEL[1-0] bits are overridden, | |
603 | and the MACE device will automatically select the operating media | |
604 | interface port. */ | |
605 | break; | |
606 | } | |
607 | ||
608 | mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_PHYADDR); | |
609 | /* Poll ADDRCHG bit */ | |
610 | ct = 0; | |
611 | while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG) | |
612 | { | |
613 | if(++ ct > 500) | |
614 | { | |
615 | printk(KERN_ERR "mace: ADDRCHG timeout, card removed ?\n"); | |
616 | return -1; | |
617 | } | |
618 | } | |
619 | /* Set PADR register */ | |
620 | for (i = 0; i < ETHER_ADDR_LEN; i++) | |
621 | mace_write(lp, ioaddr, MACE_PADR, enet_addr[i]); | |
622 | ||
623 | /* MAC Configuration Control Register should be written last */ | |
624 | /* Let set_multicast_list set this. */ | |
625 | /* mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); */ | |
626 | mace_write(lp, ioaddr, MACE_MACCC, 0x00); | |
627 | return 0; | |
628 | } /* mace_init */ | |
629 | ||
630 | /* ---------------------------------------------------------------------------- | |
631 | nmclan_config | |
632 | This routine is scheduled to run after a CARD_INSERTION event | |
633 | is received, to configure the PCMCIA socket, and to make the | |
634 | ethernet device available to the system. | |
635 | ---------------------------------------------------------------------------- */ | |
636 | ||
15b99ac1 | 637 | static int nmclan_config(struct pcmcia_device *link) |
1da177e4 | 638 | { |
1da177e4 LT |
639 | struct net_device *dev = link->priv; |
640 | mace_private *lp = netdev_priv(dev); | |
dddfbd82 DB |
641 | u8 *buf; |
642 | size_t len; | |
dd0fab5b | 643 | int i, ret; |
906da809 | 644 | unsigned int ioaddr; |
1da177e4 | 645 | |
dd0fab5b DB |
646 | dev_dbg(&link->dev, "nmclan_config\n"); |
647 | ||
648 | ret = pcmcia_request_io(link, &link->io); | |
649 | if (ret) | |
650 | goto failed; | |
eb14120f | 651 | ret = pcmcia_request_exclusive_irq(link, mace_interrupt); |
dd0fab5b DB |
652 | if (ret) |
653 | goto failed; | |
654 | ret = pcmcia_request_configuration(link, &link->conf); | |
655 | if (ret) | |
656 | goto failed; | |
1da177e4 | 657 | |
eb14120f | 658 | dev->irq = link->irq; |
1da177e4 LT |
659 | dev->base_addr = link->io.BasePort1; |
660 | ||
661 | ioaddr = dev->base_addr; | |
662 | ||
663 | /* Read the ethernet address from the CIS. */ | |
dddfbd82 DB |
664 | len = pcmcia_get_tuple(link, 0x80, &buf); |
665 | if (!buf || len < ETHER_ADDR_LEN) { | |
666 | kfree(buf); | |
667 | goto failed; | |
668 | } | |
669 | memcpy(dev->dev_addr, buf, ETHER_ADDR_LEN); | |
670 | kfree(buf); | |
1da177e4 LT |
671 | |
672 | /* Verify configuration by reading the MACE ID. */ | |
673 | { | |
674 | char sig[2]; | |
675 | ||
676 | sig[0] = mace_read(lp, ioaddr, MACE_CHIPIDL); | |
677 | sig[1] = mace_read(lp, ioaddr, MACE_CHIPIDH); | |
678 | if ((sig[0] == 0x40) && ((sig[1] & 0x0F) == 0x09)) { | |
dd0fab5b | 679 | dev_dbg(&link->dev, "nmclan_cs configured: mace id=%x %x\n", |
1da177e4 LT |
680 | sig[0], sig[1]); |
681 | } else { | |
682 | printk(KERN_NOTICE "nmclan_cs: mace id not found: %x %x should" | |
683 | " be 0x40 0x?9\n", sig[0], sig[1]); | |
15b99ac1 | 684 | return -ENODEV; |
1da177e4 LT |
685 | } |
686 | } | |
687 | ||
688 | if(mace_init(lp, ioaddr, dev->dev_addr) == -1) | |
689 | goto failed; | |
690 | ||
691 | /* The if_port symbol can be set when the module is loaded */ | |
692 | if (if_port <= 2) | |
693 | dev->if_port = if_port; | |
694 | else | |
695 | printk(KERN_NOTICE "nmclan_cs: invalid if_port requested\n"); | |
696 | ||
dd2e5a15 | 697 | SET_NETDEV_DEV(dev, &link->dev); |
1da177e4 LT |
698 | |
699 | i = register_netdev(dev); | |
700 | if (i != 0) { | |
701 | printk(KERN_NOTICE "nmclan_cs: register_netdev() failed\n"); | |
1da177e4 LT |
702 | goto failed; |
703 | } | |
704 | ||
0795af57 | 705 | printk(KERN_INFO "%s: nmclan: port %#3lx, irq %d, %s port," |
e174961c | 706 | " hw_addr %pM\n", |
0795af57 | 707 | dev->name, dev->base_addr, dev->irq, if_names[dev->if_port], |
e174961c | 708 | dev->dev_addr); |
15b99ac1 | 709 | return 0; |
1da177e4 | 710 | |
1da177e4 | 711 | failed: |
15b99ac1 DB |
712 | nmclan_release(link); |
713 | return -ENODEV; | |
1da177e4 LT |
714 | } /* nmclan_config */ |
715 | ||
716 | /* ---------------------------------------------------------------------------- | |
717 | nmclan_release | |
718 | After a card is removed, nmclan_release() will unregister the | |
719 | net device, and release the PCMCIA configuration. If the device | |
720 | is still open, this will be postponed until it is closed. | |
721 | ---------------------------------------------------------------------------- */ | |
fba395ee | 722 | static void nmclan_release(struct pcmcia_device *link) |
1da177e4 | 723 | { |
dd0fab5b | 724 | dev_dbg(&link->dev, "nmclan_release\n"); |
fba395ee | 725 | pcmcia_disable_device(link); |
1da177e4 LT |
726 | } |
727 | ||
fba395ee | 728 | static int nmclan_suspend(struct pcmcia_device *link) |
98e4c28b | 729 | { |
98e4c28b DB |
730 | struct net_device *dev = link->priv; |
731 | ||
e2d40963 | 732 | if (link->open) |
8661bb5b | 733 | netif_device_detach(dev); |
98e4c28b DB |
734 | |
735 | return 0; | |
736 | } | |
737 | ||
fba395ee | 738 | static int nmclan_resume(struct pcmcia_device *link) |
98e4c28b | 739 | { |
98e4c28b DB |
740 | struct net_device *dev = link->priv; |
741 | ||
e2d40963 | 742 | if (link->open) { |
8661bb5b DB |
743 | nmclan_reset(dev); |
744 | netif_device_attach(dev); | |
98e4c28b DB |
745 | } |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
1da177e4 LT |
750 | |
751 | /* ---------------------------------------------------------------------------- | |
752 | nmclan_reset | |
753 | Reset and restore all of the Xilinx and MACE registers. | |
754 | ---------------------------------------------------------------------------- */ | |
755 | static void nmclan_reset(struct net_device *dev) | |
756 | { | |
757 | mace_private *lp = netdev_priv(dev); | |
758 | ||
759 | #if RESET_XILINX | |
fba395ee | 760 | struct pcmcia_device *link = &lp->link; |
1da177e4 LT |
761 | conf_reg_t reg; |
762 | u_long OrigCorValue; | |
763 | ||
764 | /* Save original COR value */ | |
765 | reg.Function = 0; | |
766 | reg.Action = CS_READ; | |
767 | reg.Offset = CISREG_COR; | |
768 | reg.Value = 0; | |
fba395ee | 769 | pcmcia_access_configuration_register(link, ®); |
1da177e4 LT |
770 | OrigCorValue = reg.Value; |
771 | ||
772 | /* Reset Xilinx */ | |
773 | reg.Action = CS_WRITE; | |
774 | reg.Offset = CISREG_COR; | |
dd0fab5b | 775 | dev_dbg(&link->dev, "nmclan_reset: OrigCorValue=0x%lX, resetting...\n", |
1da177e4 LT |
776 | OrigCorValue); |
777 | reg.Value = COR_SOFT_RESET; | |
fba395ee | 778 | pcmcia_access_configuration_register(link, ®); |
1da177e4 LT |
779 | /* Need to wait for 20 ms for PCMCIA to finish reset. */ |
780 | ||
781 | /* Restore original COR configuration index */ | |
782 | reg.Value = COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK); | |
fba395ee | 783 | pcmcia_access_configuration_register(link, ®); |
1da177e4 LT |
784 | /* Xilinx is now completely reset along with the MACE chip. */ |
785 | lp->tx_free_frames=AM2150_MAX_TX_FRAMES; | |
786 | ||
787 | #endif /* #if RESET_XILINX */ | |
788 | ||
789 | /* Xilinx is now completely reset along with the MACE chip. */ | |
790 | lp->tx_free_frames=AM2150_MAX_TX_FRAMES; | |
791 | ||
792 | /* Reinitialize the MACE chip for operation. */ | |
793 | mace_init(lp, dev->base_addr, dev->dev_addr); | |
794 | mace_write(lp, dev->base_addr, MACE_IMR, MACE_IMR_DEFAULT); | |
795 | ||
796 | /* Restore the multicast list and enable TX and RX. */ | |
797 | restore_multicast_list(dev); | |
798 | } /* nmclan_reset */ | |
799 | ||
800 | /* ---------------------------------------------------------------------------- | |
801 | mace_config | |
802 | [Someone tell me what this is supposed to do? Is if_port a defined | |
803 | standard? If so, there should be defines to indicate 1=10Base-T, | |
804 | 2=10Base-2, etc. including limited automatic detection.] | |
805 | ---------------------------------------------------------------------------- */ | |
806 | static int mace_config(struct net_device *dev, struct ifmap *map) | |
807 | { | |
808 | if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { | |
809 | if (map->port <= 2) { | |
810 | dev->if_port = map->port; | |
811 | printk(KERN_INFO "%s: switched to %s port\n", dev->name, | |
812 | if_names[dev->if_port]); | |
813 | } else | |
814 | return -EINVAL; | |
815 | } | |
816 | return 0; | |
817 | } /* mace_config */ | |
818 | ||
819 | /* ---------------------------------------------------------------------------- | |
820 | mace_open | |
821 | Open device driver. | |
822 | ---------------------------------------------------------------------------- */ | |
823 | static int mace_open(struct net_device *dev) | |
824 | { | |
906da809 | 825 | unsigned int ioaddr = dev->base_addr; |
1da177e4 | 826 | mace_private *lp = netdev_priv(dev); |
fba395ee | 827 | struct pcmcia_device *link = lp->p_dev; |
1da177e4 | 828 | |
9940ec36 | 829 | if (!pcmcia_dev_present(link)) |
1da177e4 LT |
830 | return -ENODEV; |
831 | ||
832 | link->open++; | |
833 | ||
834 | MACEBANK(0); | |
835 | ||
836 | netif_start_queue(dev); | |
837 | nmclan_reset(dev); | |
838 | ||
839 | return 0; /* Always succeed */ | |
840 | } /* mace_open */ | |
841 | ||
842 | /* ---------------------------------------------------------------------------- | |
843 | mace_close | |
844 | Closes device driver. | |
845 | ---------------------------------------------------------------------------- */ | |
846 | static int mace_close(struct net_device *dev) | |
847 | { | |
906da809 | 848 | unsigned int ioaddr = dev->base_addr; |
1da177e4 | 849 | mace_private *lp = netdev_priv(dev); |
fba395ee | 850 | struct pcmcia_device *link = lp->p_dev; |
1da177e4 | 851 | |
dd0fab5b | 852 | dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name); |
1da177e4 LT |
853 | |
854 | /* Mask off all interrupts from the MACE chip. */ | |
855 | outb(0xFF, ioaddr + AM2150_MACE_BASE + MACE_IMR); | |
856 | ||
857 | link->open--; | |
858 | netif_stop_queue(dev); | |
859 | ||
860 | return 0; | |
861 | } /* mace_close */ | |
862 | ||
863 | static void netdev_get_drvinfo(struct net_device *dev, | |
864 | struct ethtool_drvinfo *info) | |
865 | { | |
866 | strcpy(info->driver, DRV_NAME); | |
867 | strcpy(info->version, DRV_VERSION); | |
868 | sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr); | |
869 | } | |
870 | ||
7282d491 | 871 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 | 872 | .get_drvinfo = netdev_get_drvinfo, |
1da177e4 LT |
873 | }; |
874 | ||
875 | /* ---------------------------------------------------------------------------- | |
876 | mace_start_xmit | |
877 | This routine begins the packet transmit function. When completed, | |
878 | it will generate a transmit interrupt. | |
879 | ||
880 | According to /usr/src/linux/net/inet/dev.c, if _start_xmit | |
881 | returns 0, the "packet is now solely the responsibility of the | |
882 | driver." If _start_xmit returns non-zero, the "transmission | |
883 | failed, put skb back into a list." | |
884 | ---------------------------------------------------------------------------- */ | |
885 | ||
886 | static void mace_tx_timeout(struct net_device *dev) | |
887 | { | |
888 | mace_private *lp = netdev_priv(dev); | |
fba395ee | 889 | struct pcmcia_device *link = lp->p_dev; |
1da177e4 LT |
890 | |
891 | printk(KERN_NOTICE "%s: transmit timed out -- ", dev->name); | |
892 | #if RESET_ON_TIMEOUT | |
893 | printk("resetting card\n"); | |
994917f8 | 894 | pcmcia_reset_card(link->socket); |
1da177e4 LT |
895 | #else /* #if RESET_ON_TIMEOUT */ |
896 | printk("NOT resetting card\n"); | |
897 | #endif /* #if RESET_ON_TIMEOUT */ | |
898 | dev->trans_start = jiffies; | |
899 | netif_wake_queue(dev); | |
900 | } | |
901 | ||
dbf02fae SH |
902 | static netdev_tx_t mace_start_xmit(struct sk_buff *skb, |
903 | struct net_device *dev) | |
1da177e4 LT |
904 | { |
905 | mace_private *lp = netdev_priv(dev); | |
906da809 | 906 | unsigned int ioaddr = dev->base_addr; |
1da177e4 LT |
907 | |
908 | netif_stop_queue(dev); | |
909 | ||
dd0fab5b | 910 | pr_debug("%s: mace_start_xmit(length = %ld) called.\n", |
1da177e4 LT |
911 | dev->name, (long)skb->len); |
912 | ||
913 | #if (!TX_INTERRUPTABLE) | |
914 | /* Disable MACE TX interrupts. */ | |
915 | outb(MACE_IMR_DEFAULT | MACE_IR_XMTINT, | |
916 | ioaddr + AM2150_MACE_BASE + MACE_IMR); | |
917 | lp->tx_irq_disabled=1; | |
918 | #endif /* #if (!TX_INTERRUPTABLE) */ | |
919 | ||
920 | { | |
921 | /* This block must not be interrupted by another transmit request! | |
922 | mace_tx_timeout will take care of timer-based retransmissions from | |
923 | the upper layers. The interrupt handler is guaranteed never to | |
924 | service a transmit interrupt while we are in here. | |
925 | */ | |
926 | ||
927 | lp->linux_stats.tx_bytes += skb->len; | |
928 | lp->tx_free_frames--; | |
929 | ||
930 | /* WARNING: Write the _exact_ number of bytes written in the header! */ | |
931 | /* Put out the word header [must be an outw()] . . . */ | |
932 | outw(skb->len, ioaddr + AM2150_XMT); | |
933 | /* . . . and the packet [may be any combination of outw() and outb()] */ | |
934 | outsw(ioaddr + AM2150_XMT, skb->data, skb->len >> 1); | |
935 | if (skb->len & 1) { | |
936 | /* Odd byte transfer */ | |
937 | outb(skb->data[skb->len-1], ioaddr + AM2150_XMT); | |
938 | } | |
939 | ||
940 | dev->trans_start = jiffies; | |
941 | ||
942 | #if MULTI_TX | |
943 | if (lp->tx_free_frames > 0) | |
944 | netif_start_queue(dev); | |
945 | #endif /* #if MULTI_TX */ | |
946 | } | |
947 | ||
948 | #if (!TX_INTERRUPTABLE) | |
949 | /* Re-enable MACE TX interrupts. */ | |
950 | lp->tx_irq_disabled=0; | |
951 | outb(MACE_IMR_DEFAULT, ioaddr + AM2150_MACE_BASE + MACE_IMR); | |
952 | #endif /* #if (!TX_INTERRUPTABLE) */ | |
953 | ||
954 | dev_kfree_skb(skb); | |
955 | ||
6ed10654 | 956 | return NETDEV_TX_OK; |
1da177e4 LT |
957 | } /* mace_start_xmit */ |
958 | ||
959 | /* ---------------------------------------------------------------------------- | |
960 | mace_interrupt | |
961 | The interrupt handler. | |
962 | ---------------------------------------------------------------------------- */ | |
7d12e780 | 963 | static irqreturn_t mace_interrupt(int irq, void *dev_id) |
1da177e4 LT |
964 | { |
965 | struct net_device *dev = (struct net_device *) dev_id; | |
966 | mace_private *lp = netdev_priv(dev); | |
906da809 | 967 | unsigned int ioaddr; |
1da177e4 LT |
968 | int status; |
969 | int IntrCnt = MACE_MAX_IR_ITERATIONS; | |
970 | ||
971 | if (dev == NULL) { | |
dd0fab5b | 972 | pr_debug("mace_interrupt(): irq 0x%X for unknown device.\n", |
1da177e4 LT |
973 | irq); |
974 | return IRQ_NONE; | |
975 | } | |
976 | ||
c196d80f MG |
977 | ioaddr = dev->base_addr; |
978 | ||
1da177e4 LT |
979 | if (lp->tx_irq_disabled) { |
980 | printk( | |
981 | (lp->tx_irq_disabled? | |
982 | KERN_NOTICE "%s: Interrupt with tx_irq_disabled " | |
983 | "[isr=%02X, imr=%02X]\n": | |
984 | KERN_NOTICE "%s: Re-entering the interrupt handler " | |
985 | "[isr=%02X, imr=%02X]\n"), | |
986 | dev->name, | |
987 | inb(ioaddr + AM2150_MACE_BASE + MACE_IR), | |
988 | inb(ioaddr + AM2150_MACE_BASE + MACE_IMR) | |
989 | ); | |
990 | /* WARNING: MACE_IR has been read! */ | |
991 | return IRQ_NONE; | |
992 | } | |
993 | ||
994 | if (!netif_device_present(dev)) { | |
dd0fab5b | 995 | pr_debug("%s: interrupt from dead card\n", dev->name); |
1da177e4 LT |
996 | return IRQ_NONE; |
997 | } | |
998 | ||
999 | do { | |
1000 | /* WARNING: MACE_IR is a READ/CLEAR port! */ | |
1001 | status = inb(ioaddr + AM2150_MACE_BASE + MACE_IR); | |
1002 | ||
dd0fab5b | 1003 | pr_debug("mace_interrupt: irq 0x%X status 0x%X.\n", irq, status); |
1da177e4 LT |
1004 | |
1005 | if (status & MACE_IR_RCVINT) { | |
1006 | mace_rx(dev, MACE_MAX_RX_ITERATIONS); | |
1007 | } | |
1008 | ||
1009 | if (status & MACE_IR_XMTINT) { | |
1010 | unsigned char fifofc; | |
1011 | unsigned char xmtrc; | |
1012 | unsigned char xmtfs; | |
1013 | ||
1014 | fifofc = inb(ioaddr + AM2150_MACE_BASE + MACE_FIFOFC); | |
1015 | if ((fifofc & MACE_FIFOFC_XMTFC)==0) { | |
1016 | lp->linux_stats.tx_errors++; | |
1017 | outb(0xFF, ioaddr + AM2150_XMT_SKIP); | |
1018 | } | |
1019 | ||
1020 | /* Transmit Retry Count (XMTRC, reg 4) */ | |
1021 | xmtrc = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTRC); | |
1022 | if (xmtrc & MACE_XMTRC_EXDEF) lp->mace_stats.exdef++; | |
1023 | lp->mace_stats.xmtrc += (xmtrc & MACE_XMTRC_XMTRC); | |
1024 | ||
1025 | if ( | |
1026 | (xmtfs = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTFS)) & | |
1027 | MACE_XMTFS_XMTSV /* Transmit Status Valid */ | |
1028 | ) { | |
1029 | lp->mace_stats.xmtsv++; | |
1030 | ||
1031 | if (xmtfs & ~MACE_XMTFS_XMTSV) { | |
1032 | if (xmtfs & MACE_XMTFS_UFLO) { | |
1033 | /* Underflow. Indicates that the Transmit FIFO emptied before | |
1034 | the end of frame was reached. */ | |
1035 | lp->mace_stats.uflo++; | |
1036 | } | |
1037 | if (xmtfs & MACE_XMTFS_LCOL) { | |
1038 | /* Late Collision */ | |
1039 | lp->mace_stats.lcol++; | |
1040 | } | |
1041 | if (xmtfs & MACE_XMTFS_MORE) { | |
1042 | /* MORE than one retry was needed */ | |
1043 | lp->mace_stats.more++; | |
1044 | } | |
1045 | if (xmtfs & MACE_XMTFS_ONE) { | |
1046 | /* Exactly ONE retry occurred */ | |
1047 | lp->mace_stats.one++; | |
1048 | } | |
1049 | if (xmtfs & MACE_XMTFS_DEFER) { | |
1050 | /* Transmission was defered */ | |
1051 | lp->mace_stats.defer++; | |
1052 | } | |
1053 | if (xmtfs & MACE_XMTFS_LCAR) { | |
1054 | /* Loss of carrier */ | |
1055 | lp->mace_stats.lcar++; | |
1056 | } | |
1057 | if (xmtfs & MACE_XMTFS_RTRY) { | |
1058 | /* Retry error: transmit aborted after 16 attempts */ | |
1059 | lp->mace_stats.rtry++; | |
1060 | } | |
1061 | } /* if (xmtfs & ~MACE_XMTFS_XMTSV) */ | |
1062 | ||
1063 | } /* if (xmtfs & MACE_XMTFS_XMTSV) */ | |
1064 | ||
1065 | lp->linux_stats.tx_packets++; | |
1066 | lp->tx_free_frames++; | |
1067 | netif_wake_queue(dev); | |
1068 | } /* if (status & MACE_IR_XMTINT) */ | |
1069 | ||
1070 | if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) { | |
1071 | if (status & MACE_IR_JAB) { | |
1072 | /* Jabber Error. Excessive transmit duration (20-150ms). */ | |
1073 | lp->mace_stats.jab++; | |
1074 | } | |
1075 | if (status & MACE_IR_BABL) { | |
1076 | /* Babble Error. >1518 bytes transmitted. */ | |
1077 | lp->mace_stats.babl++; | |
1078 | } | |
1079 | if (status & MACE_IR_CERR) { | |
1080 | /* Collision Error. CERR indicates the absence of the | |
1081 | Signal Quality Error Test message after a packet | |
1082 | transmission. */ | |
1083 | lp->mace_stats.cerr++; | |
1084 | } | |
1085 | if (status & MACE_IR_RCVCCO) { | |
1086 | /* Receive Collision Count Overflow; */ | |
1087 | lp->mace_stats.rcvcco++; | |
1088 | } | |
1089 | if (status & MACE_IR_RNTPCO) { | |
1090 | /* Runt Packet Count Overflow */ | |
1091 | lp->mace_stats.rntpco++; | |
1092 | } | |
1093 | if (status & MACE_IR_MPCO) { | |
1094 | /* Missed Packet Count Overflow */ | |
1095 | lp->mace_stats.mpco++; | |
1096 | } | |
1097 | } /* if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) */ | |
1098 | ||
1099 | } while ((status & ~MACE_IMR_DEFAULT) && (--IntrCnt)); | |
1100 | ||
1101 | return IRQ_HANDLED; | |
1102 | } /* mace_interrupt */ | |
1103 | ||
1104 | /* ---------------------------------------------------------------------------- | |
1105 | mace_rx | |
1106 | Receives packets. | |
1107 | ---------------------------------------------------------------------------- */ | |
1108 | static int mace_rx(struct net_device *dev, unsigned char RxCnt) | |
1109 | { | |
1110 | mace_private *lp = netdev_priv(dev); | |
906da809 | 1111 | unsigned int ioaddr = dev->base_addr; |
1da177e4 LT |
1112 | unsigned char rx_framecnt; |
1113 | unsigned short rx_status; | |
1114 | ||
1115 | while ( | |
1116 | ((rx_framecnt = inb(ioaddr + AM2150_RCV_FRAME_COUNT)) > 0) && | |
1117 | (rx_framecnt <= 12) && /* rx_framecnt==0xFF if card is extracted. */ | |
1118 | (RxCnt--) | |
1119 | ) { | |
1120 | rx_status = inw(ioaddr + AM2150_RCV); | |
1121 | ||
dd0fab5b | 1122 | pr_debug("%s: in mace_rx(), framecnt 0x%X, rx_status" |
1da177e4 LT |
1123 | " 0x%X.\n", dev->name, rx_framecnt, rx_status); |
1124 | ||
1125 | if (rx_status & MACE_RCVFS_RCVSTS) { /* Error, update stats. */ | |
1126 | lp->linux_stats.rx_errors++; | |
1127 | if (rx_status & MACE_RCVFS_OFLO) { | |
1128 | lp->mace_stats.oflo++; | |
1129 | } | |
1130 | if (rx_status & MACE_RCVFS_CLSN) { | |
1131 | lp->mace_stats.clsn++; | |
1132 | } | |
1133 | if (rx_status & MACE_RCVFS_FRAM) { | |
1134 | lp->mace_stats.fram++; | |
1135 | } | |
1136 | if (rx_status & MACE_RCVFS_FCS) { | |
1137 | lp->mace_stats.fcs++; | |
1138 | } | |
1139 | } else { | |
1140 | short pkt_len = (rx_status & ~MACE_RCVFS_RCVSTS) - 4; | |
1141 | /* Auto Strip is off, always subtract 4 */ | |
1142 | struct sk_buff *skb; | |
1143 | ||
1144 | lp->mace_stats.rfs_rntpc += inb(ioaddr + AM2150_RCV); | |
1145 | /* runt packet count */ | |
1146 | lp->mace_stats.rfs_rcvcc += inb(ioaddr + AM2150_RCV); | |
1147 | /* rcv collision count */ | |
1148 | ||
dd0fab5b | 1149 | pr_debug(" receiving packet size 0x%X rx_status" |
1da177e4 LT |
1150 | " 0x%X.\n", pkt_len, rx_status); |
1151 | ||
1152 | skb = dev_alloc_skb(pkt_len+2); | |
1153 | ||
1154 | if (skb != NULL) { | |
1da177e4 LT |
1155 | skb_reserve(skb, 2); |
1156 | insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1); | |
1157 | if (pkt_len & 1) | |
27a884dc | 1158 | *(skb_tail_pointer(skb) - 1) = inb(ioaddr + AM2150_RCV); |
1da177e4 LT |
1159 | skb->protocol = eth_type_trans(skb, dev); |
1160 | ||
1161 | netif_rx(skb); /* Send the packet to the upper (protocol) layers. */ | |
1162 | ||
1da177e4 | 1163 | lp->linux_stats.rx_packets++; |
6f258910 | 1164 | lp->linux_stats.rx_bytes += pkt_len; |
1da177e4 LT |
1165 | outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */ |
1166 | continue; | |
1167 | } else { | |
dd0fab5b | 1168 | pr_debug("%s: couldn't allocate a sk_buff of size" |
1da177e4 LT |
1169 | " %d.\n", dev->name, pkt_len); |
1170 | lp->linux_stats.rx_dropped++; | |
1171 | } | |
1172 | } | |
1173 | outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */ | |
1174 | } /* while */ | |
1175 | ||
1176 | return 0; | |
1177 | } /* mace_rx */ | |
1178 | ||
1179 | /* ---------------------------------------------------------------------------- | |
1180 | pr_linux_stats | |
1181 | ---------------------------------------------------------------------------- */ | |
1182 | static void pr_linux_stats(struct net_device_stats *pstats) | |
1183 | { | |
dd0fab5b DB |
1184 | pr_debug("pr_linux_stats\n"); |
1185 | pr_debug(" rx_packets=%-7ld tx_packets=%ld\n", | |
1da177e4 | 1186 | (long)pstats->rx_packets, (long)pstats->tx_packets); |
dd0fab5b | 1187 | pr_debug(" rx_errors=%-7ld tx_errors=%ld\n", |
1da177e4 | 1188 | (long)pstats->rx_errors, (long)pstats->tx_errors); |
dd0fab5b | 1189 | pr_debug(" rx_dropped=%-7ld tx_dropped=%ld\n", |
1da177e4 | 1190 | (long)pstats->rx_dropped, (long)pstats->tx_dropped); |
dd0fab5b | 1191 | pr_debug(" multicast=%-7ld collisions=%ld\n", |
1da177e4 LT |
1192 | (long)pstats->multicast, (long)pstats->collisions); |
1193 | ||
dd0fab5b | 1194 | pr_debug(" rx_length_errors=%-7ld rx_over_errors=%ld\n", |
1da177e4 | 1195 | (long)pstats->rx_length_errors, (long)pstats->rx_over_errors); |
dd0fab5b | 1196 | pr_debug(" rx_crc_errors=%-7ld rx_frame_errors=%ld\n", |
1da177e4 | 1197 | (long)pstats->rx_crc_errors, (long)pstats->rx_frame_errors); |
dd0fab5b | 1198 | pr_debug(" rx_fifo_errors=%-7ld rx_missed_errors=%ld\n", |
1da177e4 LT |
1199 | (long)pstats->rx_fifo_errors, (long)pstats->rx_missed_errors); |
1200 | ||
dd0fab5b | 1201 | pr_debug(" tx_aborted_errors=%-7ld tx_carrier_errors=%ld\n", |
1da177e4 | 1202 | (long)pstats->tx_aborted_errors, (long)pstats->tx_carrier_errors); |
dd0fab5b | 1203 | pr_debug(" tx_fifo_errors=%-7ld tx_heartbeat_errors=%ld\n", |
1da177e4 | 1204 | (long)pstats->tx_fifo_errors, (long)pstats->tx_heartbeat_errors); |
dd0fab5b | 1205 | pr_debug(" tx_window_errors=%ld\n", |
1da177e4 LT |
1206 | (long)pstats->tx_window_errors); |
1207 | } /* pr_linux_stats */ | |
1208 | ||
1209 | /* ---------------------------------------------------------------------------- | |
1210 | pr_mace_stats | |
1211 | ---------------------------------------------------------------------------- */ | |
1212 | static void pr_mace_stats(mace_statistics *pstats) | |
1213 | { | |
dd0fab5b | 1214 | pr_debug("pr_mace_stats\n"); |
1da177e4 | 1215 | |
dd0fab5b | 1216 | pr_debug(" xmtsv=%-7d uflo=%d\n", |
1da177e4 | 1217 | pstats->xmtsv, pstats->uflo); |
dd0fab5b | 1218 | pr_debug(" lcol=%-7d more=%d\n", |
1da177e4 | 1219 | pstats->lcol, pstats->more); |
dd0fab5b | 1220 | pr_debug(" one=%-7d defer=%d\n", |
1da177e4 | 1221 | pstats->one, pstats->defer); |
dd0fab5b | 1222 | pr_debug(" lcar=%-7d rtry=%d\n", |
1da177e4 LT |
1223 | pstats->lcar, pstats->rtry); |
1224 | ||
1225 | /* MACE_XMTRC */ | |
dd0fab5b | 1226 | pr_debug(" exdef=%-7d xmtrc=%d\n", |
1da177e4 LT |
1227 | pstats->exdef, pstats->xmtrc); |
1228 | ||
1229 | /* RFS1--Receive Status (RCVSTS) */ | |
dd0fab5b | 1230 | pr_debug(" oflo=%-7d clsn=%d\n", |
1da177e4 | 1231 | pstats->oflo, pstats->clsn); |
dd0fab5b | 1232 | pr_debug(" fram=%-7d fcs=%d\n", |
1da177e4 LT |
1233 | pstats->fram, pstats->fcs); |
1234 | ||
1235 | /* RFS2--Runt Packet Count (RNTPC) */ | |
1236 | /* RFS3--Receive Collision Count (RCVCC) */ | |
dd0fab5b | 1237 | pr_debug(" rfs_rntpc=%-7d rfs_rcvcc=%d\n", |
1da177e4 LT |
1238 | pstats->rfs_rntpc, pstats->rfs_rcvcc); |
1239 | ||
1240 | /* MACE_IR */ | |
dd0fab5b | 1241 | pr_debug(" jab=%-7d babl=%d\n", |
1da177e4 | 1242 | pstats->jab, pstats->babl); |
dd0fab5b | 1243 | pr_debug(" cerr=%-7d rcvcco=%d\n", |
1da177e4 | 1244 | pstats->cerr, pstats->rcvcco); |
dd0fab5b | 1245 | pr_debug(" rntpco=%-7d mpco=%d\n", |
1da177e4 LT |
1246 | pstats->rntpco, pstats->mpco); |
1247 | ||
1248 | /* MACE_MPC */ | |
dd0fab5b | 1249 | pr_debug(" mpc=%d\n", pstats->mpc); |
1da177e4 LT |
1250 | |
1251 | /* MACE_RNTPC */ | |
dd0fab5b | 1252 | pr_debug(" rntpc=%d\n", pstats->rntpc); |
1da177e4 LT |
1253 | |
1254 | /* MACE_RCVCC */ | |
dd0fab5b | 1255 | pr_debug(" rcvcc=%d\n", pstats->rcvcc); |
1da177e4 LT |
1256 | |
1257 | } /* pr_mace_stats */ | |
1258 | ||
1259 | /* ---------------------------------------------------------------------------- | |
1260 | update_stats | |
1261 | Update statistics. We change to register window 1, so this | |
1262 | should be run single-threaded if the device is active. This is | |
1263 | expected to be a rare operation, and it's simpler for the rest | |
1264 | of the driver to assume that window 0 is always valid rather | |
1265 | than use a special window-state variable. | |
1266 | ||
1267 | oflo & uflo should _never_ occur since it would mean the Xilinx | |
1268 | was not able to transfer data between the MACE FIFO and the | |
1269 | card's SRAM fast enough. If this happens, something is | |
1270 | seriously wrong with the hardware. | |
1271 | ---------------------------------------------------------------------------- */ | |
906da809 | 1272 | static void update_stats(unsigned int ioaddr, struct net_device *dev) |
1da177e4 LT |
1273 | { |
1274 | mace_private *lp = netdev_priv(dev); | |
1275 | ||
1276 | lp->mace_stats.rcvcc += mace_read(lp, ioaddr, MACE_RCVCC); | |
1277 | lp->mace_stats.rntpc += mace_read(lp, ioaddr, MACE_RNTPC); | |
1278 | lp->mace_stats.mpc += mace_read(lp, ioaddr, MACE_MPC); | |
1279 | /* At this point, mace_stats is fully updated for this call. | |
1280 | We may now update the linux_stats. */ | |
1281 | ||
1282 | /* The MACE has no equivalent for linux_stats field which are commented | |
1283 | out. */ | |
1284 | ||
1285 | /* lp->linux_stats.multicast; */ | |
1286 | lp->linux_stats.collisions = | |
1287 | lp->mace_stats.rcvcco * 256 + lp->mace_stats.rcvcc; | |
1288 | /* Collision: The MACE may retry sending a packet 15 times | |
1289 | before giving up. The retry count is in XMTRC. | |
1290 | Does each retry constitute a collision? | |
1291 | If so, why doesn't the RCVCC record these collisions? */ | |
1292 | ||
1293 | /* detailed rx_errors: */ | |
1294 | lp->linux_stats.rx_length_errors = | |
1295 | lp->mace_stats.rntpco * 256 + lp->mace_stats.rntpc; | |
1296 | /* lp->linux_stats.rx_over_errors */ | |
1297 | lp->linux_stats.rx_crc_errors = lp->mace_stats.fcs; | |
1298 | lp->linux_stats.rx_frame_errors = lp->mace_stats.fram; | |
1299 | lp->linux_stats.rx_fifo_errors = lp->mace_stats.oflo; | |
1300 | lp->linux_stats.rx_missed_errors = | |
1301 | lp->mace_stats.mpco * 256 + lp->mace_stats.mpc; | |
1302 | ||
1303 | /* detailed tx_errors */ | |
1304 | lp->linux_stats.tx_aborted_errors = lp->mace_stats.rtry; | |
1305 | lp->linux_stats.tx_carrier_errors = lp->mace_stats.lcar; | |
1306 | /* LCAR usually results from bad cabling. */ | |
1307 | lp->linux_stats.tx_fifo_errors = lp->mace_stats.uflo; | |
1308 | lp->linux_stats.tx_heartbeat_errors = lp->mace_stats.cerr; | |
1309 | /* lp->linux_stats.tx_window_errors; */ | |
1310 | ||
1311 | return; | |
1312 | } /* update_stats */ | |
1313 | ||
1314 | /* ---------------------------------------------------------------------------- | |
1315 | mace_get_stats | |
1316 | Gathers ethernet statistics from the MACE chip. | |
1317 | ---------------------------------------------------------------------------- */ | |
1318 | static struct net_device_stats *mace_get_stats(struct net_device *dev) | |
1319 | { | |
1320 | mace_private *lp = netdev_priv(dev); | |
1321 | ||
1322 | update_stats(dev->base_addr, dev); | |
1323 | ||
dd0fab5b | 1324 | pr_debug("%s: updating the statistics.\n", dev->name); |
1da177e4 LT |
1325 | pr_linux_stats(&lp->linux_stats); |
1326 | pr_mace_stats(&lp->mace_stats); | |
1327 | ||
1328 | return &lp->linux_stats; | |
1329 | } /* net_device_stats */ | |
1330 | ||
1331 | /* ---------------------------------------------------------------------------- | |
1332 | updateCRC | |
1333 | Modified from Am79C90 data sheet. | |
1334 | ---------------------------------------------------------------------------- */ | |
1335 | ||
1336 | #ifdef BROKEN_MULTICAST | |
1337 | ||
1338 | static void updateCRC(int *CRC, int bit) | |
1339 | { | |
1340 | int poly[]={ | |
1341 | 1,1,1,0, 1,1,0,1, | |
1342 | 1,0,1,1, 1,0,0,0, | |
1343 | 1,0,0,0, 0,0,1,1, | |
1344 | 0,0,1,0, 0,0,0,0 | |
1345 | }; /* CRC polynomial. poly[n] = coefficient of the x**n term of the | |
1346 | CRC generator polynomial. */ | |
1347 | ||
1348 | int j; | |
1349 | ||
1350 | /* shift CRC and control bit (CRC[32]) */ | |
1351 | for (j = 32; j > 0; j--) | |
1352 | CRC[j] = CRC[j-1]; | |
1353 | CRC[0] = 0; | |
1354 | ||
1355 | /* If bit XOR(control bit) = 1, set CRC = CRC XOR polynomial. */ | |
1356 | if (bit ^ CRC[32]) | |
1357 | for (j = 0; j < 32; j++) | |
1358 | CRC[j] ^= poly[j]; | |
1359 | } /* updateCRC */ | |
1360 | ||
1361 | /* ---------------------------------------------------------------------------- | |
1362 | BuildLAF | |
1363 | Build logical address filter. | |
1364 | Modified from Am79C90 data sheet. | |
1365 | ||
1366 | Input | |
1367 | ladrf: logical address filter (contents initialized to 0) | |
1368 | adr: ethernet address | |
1369 | ---------------------------------------------------------------------------- */ | |
1370 | static void BuildLAF(int *ladrf, int *adr) | |
1371 | { | |
1372 | int CRC[33]={1}; /* CRC register, 1 word/bit + extra control bit */ | |
1373 | ||
1374 | int i, byte; /* temporary array indices */ | |
1375 | int hashcode; /* the output object */ | |
1376 | ||
1377 | CRC[32]=0; | |
1378 | ||
1379 | for (byte = 0; byte < 6; byte++) | |
1380 | for (i = 0; i < 8; i++) | |
1381 | updateCRC(CRC, (adr[byte] >> i) & 1); | |
1382 | ||
1383 | hashcode = 0; | |
1384 | for (i = 0; i < 6; i++) | |
1385 | hashcode = (hashcode << 1) + CRC[i]; | |
1386 | ||
1387 | byte = hashcode >> 3; | |
1388 | ladrf[byte] |= (1 << (hashcode & 7)); | |
1389 | ||
1390 | #ifdef PCMCIA_DEBUG | |
dd0fab5b | 1391 | if (0) |
ad361c98 JP |
1392 | printk(KERN_DEBUG " adr =%pM\n", adr); |
1393 | printk(KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63] =", hashcode); | |
1394 | for (i = 0; i < 8; i++) | |
1395 | printk(KERN_CONT " %02X", ladrf[i]); | |
1396 | printk(KERN_CONT "\n"); | |
1da177e4 LT |
1397 | #endif |
1398 | } /* BuildLAF */ | |
1399 | ||
1400 | /* ---------------------------------------------------------------------------- | |
1401 | restore_multicast_list | |
1402 | Restores the multicast filter for MACE chip to the last | |
1403 | set_multicast_list() call. | |
1404 | ||
1405 | Input | |
1406 | multicast_num_addrs | |
1407 | multicast_ladrf[] | |
1408 | ---------------------------------------------------------------------------- */ | |
1409 | static void restore_multicast_list(struct net_device *dev) | |
1410 | { | |
1411 | mace_private *lp = netdev_priv(dev); | |
1412 | int num_addrs = lp->multicast_num_addrs; | |
1413 | int *ladrf = lp->multicast_ladrf; | |
906da809 | 1414 | unsigned int ioaddr = dev->base_addr; |
1da177e4 LT |
1415 | int i; |
1416 | ||
dd0fab5b | 1417 | pr_debug("%s: restoring Rx mode to %d addresses.\n", |
1da177e4 LT |
1418 | dev->name, num_addrs); |
1419 | ||
1420 | if (num_addrs > 0) { | |
1421 | ||
dd0fab5b | 1422 | pr_debug("Attempt to restore multicast list detected.\n"); |
1da177e4 LT |
1423 | |
1424 | mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_LOGADDR); | |
1425 | /* Poll ADDRCHG bit */ | |
1426 | while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG) | |
1427 | ; | |
1428 | /* Set LADRF register */ | |
1429 | for (i = 0; i < MACE_LADRF_LEN; i++) | |
1430 | mace_write(lp, ioaddr, MACE_LADRF, ladrf[i]); | |
1431 | ||
1432 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_RCVFCSE | MACE_UTR_LOOP_EXTERNAL); | |
1433 | mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); | |
1434 | ||
1435 | } else if (num_addrs < 0) { | |
1436 | ||
1437 | /* Promiscuous mode: receive all packets */ | |
1438 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1439 | mace_write(lp, ioaddr, MACE_MACCC, | |
1440 | MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV | |
1441 | ); | |
1442 | ||
1443 | } else { | |
1444 | ||
1445 | /* Normal mode */ | |
1446 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1447 | mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); | |
1448 | ||
1449 | } | |
1450 | } /* restore_multicast_list */ | |
1451 | ||
1452 | /* ---------------------------------------------------------------------------- | |
1453 | set_multicast_list | |
1454 | Set or clear the multicast filter for this adaptor. | |
1455 | ||
1456 | Input | |
1457 | num_addrs == -1 Promiscuous mode, receive all packets | |
1458 | num_addrs == 0 Normal mode, clear multicast list | |
1459 | num_addrs > 0 Multicast mode, receive normal and MC packets, and do | |
1460 | best-effort filtering. | |
1461 | Output | |
1462 | multicast_num_addrs | |
1463 | multicast_ladrf[] | |
1464 | ---------------------------------------------------------------------------- */ | |
1465 | ||
1466 | static void set_multicast_list(struct net_device *dev) | |
1467 | { | |
1468 | mace_private *lp = netdev_priv(dev); | |
1469 | int adr[ETHER_ADDR_LEN] = {0}; /* Ethernet address */ | |
91fea585 | 1470 | struct dev_mc_list *dmi; |
1da177e4 LT |
1471 | |
1472 | #ifdef PCMCIA_DEBUG | |
dd0fab5b | 1473 | { |
1da177e4 | 1474 | static int old; |
4cd24eaf JP |
1475 | if (netdev_mc_count(dev) != old) { |
1476 | old = netdev_mc_count(dev); | |
dd0fab5b | 1477 | pr_debug("%s: setting Rx mode to %d addresses.\n", |
1da177e4 LT |
1478 | dev->name, old); |
1479 | } | |
1480 | } | |
1481 | #endif | |
1482 | ||
1483 | /* Set multicast_num_addrs. */ | |
4cd24eaf | 1484 | lp->multicast_num_addrs = netdev_mc_count(dev); |
1da177e4 LT |
1485 | |
1486 | /* Set multicast_ladrf. */ | |
1487 | if (num_addrs > 0) { | |
1488 | /* Calculate multicast logical address filter */ | |
1489 | memset(lp->multicast_ladrf, 0, MACE_LADRF_LEN); | |
91fea585 | 1490 | netdev_for_each_mc_addr(dmi, dev) { |
1da177e4 | 1491 | memcpy(adr, dmi->dmi_addr, ETHER_ADDR_LEN); |
1da177e4 LT |
1492 | BuildLAF(lp->multicast_ladrf, adr); |
1493 | } | |
1494 | } | |
1495 | ||
1496 | restore_multicast_list(dev); | |
1497 | ||
1498 | } /* set_multicast_list */ | |
1499 | ||
1500 | #endif /* BROKEN_MULTICAST */ | |
1501 | ||
1502 | static void restore_multicast_list(struct net_device *dev) | |
1503 | { | |
906da809 | 1504 | unsigned int ioaddr = dev->base_addr; |
1da177e4 LT |
1505 | mace_private *lp = netdev_priv(dev); |
1506 | ||
dd0fab5b | 1507 | pr_debug("%s: restoring Rx mode to %d addresses.\n", dev->name, |
1da177e4 LT |
1508 | lp->multicast_num_addrs); |
1509 | ||
1510 | if (dev->flags & IFF_PROMISC) { | |
1511 | /* Promiscuous mode: receive all packets */ | |
1512 | mace_write(lp,ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1513 | mace_write(lp, ioaddr, MACE_MACCC, | |
1514 | MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV | |
1515 | ); | |
1516 | } else { | |
1517 | /* Normal mode */ | |
1518 | mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL); | |
1519 | mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); | |
1520 | } | |
1521 | } /* restore_multicast_list */ | |
1522 | ||
1523 | static void set_multicast_list(struct net_device *dev) | |
1524 | { | |
1525 | mace_private *lp = netdev_priv(dev); | |
1526 | ||
1527 | #ifdef PCMCIA_DEBUG | |
dd0fab5b | 1528 | { |
1da177e4 | 1529 | static int old; |
4cd24eaf JP |
1530 | if (netdev_mc_count(dev) != old) { |
1531 | old = netdev_mc_count(dev); | |
dd0fab5b | 1532 | pr_debug("%s: setting Rx mode to %d addresses.\n", |
1da177e4 LT |
1533 | dev->name, old); |
1534 | } | |
1535 | } | |
1536 | #endif | |
1537 | ||
4cd24eaf | 1538 | lp->multicast_num_addrs = netdev_mc_count(dev); |
1da177e4 LT |
1539 | restore_multicast_list(dev); |
1540 | ||
1541 | } /* set_multicast_list */ | |
1542 | ||
a58e26cb DB |
1543 | static struct pcmcia_device_id nmclan_ids[] = { |
1544 | PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Ethernet", 0x085a850b, 0x00b2e941), | |
d277ad0e | 1545 | PCMCIA_DEVICE_PROD_ID12("Portable Add-ons", "Ethernet+", 0xebf1d60, 0xad673aaf), |
a58e26cb DB |
1546 | PCMCIA_DEVICE_NULL, |
1547 | }; | |
1548 | MODULE_DEVICE_TABLE(pcmcia, nmclan_ids); | |
1549 | ||
1da177e4 LT |
1550 | static struct pcmcia_driver nmclan_cs_driver = { |
1551 | .owner = THIS_MODULE, | |
1552 | .drv = { | |
1553 | .name = "nmclan_cs", | |
1554 | }, | |
15b99ac1 | 1555 | .probe = nmclan_probe, |
cc3b4866 | 1556 | .remove = nmclan_detach, |
a58e26cb | 1557 | .id_table = nmclan_ids, |
98e4c28b DB |
1558 | .suspend = nmclan_suspend, |
1559 | .resume = nmclan_resume, | |
1da177e4 LT |
1560 | }; |
1561 | ||
1562 | static int __init init_nmclan_cs(void) | |
1563 | { | |
1564 | return pcmcia_register_driver(&nmclan_cs_driver); | |
1565 | } | |
1566 | ||
1567 | static void __exit exit_nmclan_cs(void) | |
1568 | { | |
1569 | pcmcia_unregister_driver(&nmclan_cs_driver); | |
1da177e4 LT |
1570 | } |
1571 | ||
1572 | module_init(init_nmclan_cs); | |
1573 | module_exit(exit_nmclan_cs); |