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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / net / ethernet / fujitsu / fmvj18x_cs.c
blobee84b472cee60c377556495ff54504e8a4f6b7f8
1 /*======================================================================
2 fmvj18x_cs.c 2.8 2002/03/23
3
4 A fmvj18x (and its compatibles) PCMCIA client driver
5
6 Contributed by Shingo Fujimoto, shingo@flab.fujitsu.co.jp
7
8 TDK LAK-CD021 and CONTEC C-NET(PC)C support added by
9 Nobuhiro Katayama, kata-n@po.iijnet.or.jp
10
11 The PCMCIA client code is based on code written by David Hinds.
12 Network code is based on the "FMV-18x driver" by Yutaka TAMIYA
13 but is actually largely Donald Becker's AT1700 driver, which
14 carries the following attribution:
15
16 Written 1993-94 by Donald Becker.
17
18 Copyright 1993 United States Government as represented by the
19 Director, National Security Agency.
20
21 This software may be used and distributed according to the terms
22 of the GNU General Public License, incorporated herein by reference.
23
24 The author may be reached as becker@scyld.com, or C/O
25 Scyld Computing Corporation
26 410 Severn Ave., Suite 210
27 Annapolis MD 21403
28
29 ======================================================================*/
30
31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32
33 #define DRV_NAME "fmvj18x_cs"
34 #define DRV_VERSION "2.9"
35
36 #include <linux/module.h>
37 #include <linux/kernel.h>
38 #include <linux/init.h>
39 #include <linux/ptrace.h>
40 #include <linux/slab.h>
41 #include <linux/string.h>
42 #include <linux/timer.h>
43 #include <linux/interrupt.h>
44 #include <linux/in.h>
45 #include <linux/delay.h>
46 #include <linux/ethtool.h>
47 #include <linux/netdevice.h>
48 #include <linux/etherdevice.h>
49 #include <linux/skbuff.h>
50 #include <linux/if_arp.h>
51 #include <linux/ioport.h>
52 #include <linux/crc32.h>
53
54 #include <pcmcia/cistpl.h>
55 #include <pcmcia/ciscode.h>
56 #include <pcmcia/ds.h>
57
58 #include <asm/uaccess.h>
59 #include <asm/io.h>
60 #include <asm/system.h>
61
62 /*====================================================================*/
63
64 /* Module parameters */
65
66 MODULE_DESCRIPTION("fmvj18x and compatible PCMCIA ethernet driver");
67 MODULE_LICENSE("GPL");
68
69 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
70
71 /* SRAM configuration */
72 /* 0:4KB*2 TX buffer else:8KB*2 TX buffer */
73 INT_MODULE_PARM(sram_config, 0);
74
75
76 /*====================================================================*/
77 /*
78 PCMCIA event handlers
79 */
80 static int fmvj18x_config(struct pcmcia_device *link);
81 static int fmvj18x_get_hwinfo(struct pcmcia_device *link, u_char *node_id);
82 static int fmvj18x_setup_mfc(struct pcmcia_device *link);
83 static void fmvj18x_release(struct pcmcia_device *link);
84 static void fmvj18x_detach(struct pcmcia_device *p_dev);
85
86 /*
87 LAN controller(MBH86960A) specific routines
88 */
89 static int fjn_config(struct net_device *dev, struct ifmap *map);
90 static int fjn_open(struct net_device *dev);
91 static int fjn_close(struct net_device *dev);
92 static netdev_tx_t fjn_start_xmit(struct sk_buff *skb,
93 struct net_device *dev);
94 static irqreturn_t fjn_interrupt(int irq, void *dev_id);
95 static void fjn_rx(struct net_device *dev);
96 static void fjn_reset(struct net_device *dev);
97 static void set_rx_mode(struct net_device *dev);
98 static void fjn_tx_timeout(struct net_device *dev);
99 static const struct ethtool_ops netdev_ethtool_ops;
100
101 /*
102 card type
103 */
104 typedef enum { MBH10302, MBH10304, TDK, CONTEC, LA501, UNGERMANN,
105 XXX10304, NEC, KME
106 } cardtype_t;
107
108 /*
109 driver specific data structure
110 */
111 typedef struct local_info_t {
112 struct pcmcia_device *p_dev;
113 long open_time;
114 uint tx_started:1;
115 uint tx_queue;
116 u_short tx_queue_len;
117 cardtype_t cardtype;
118 u_short sent;
119 u_char __iomem *base;
120 } local_info_t;
121
122 #define MC_FILTERBREAK 64
123
124 /*====================================================================*/
125 /*
126 ioport offset from the base address
127 */
128 #define TX_STATUS 0 /* transmit status register */
129 #define RX_STATUS 1 /* receive status register */
130 #define TX_INTR 2 /* transmit interrupt mask register */
131 #define RX_INTR 3 /* receive interrupt mask register */
132 #define TX_MODE 4 /* transmit mode register */
133 #define RX_MODE 5 /* receive mode register */
134 #define CONFIG_0 6 /* configuration register 0 */
135 #define CONFIG_1 7 /* configuration register 1 */
136
137 #define NODE_ID 8 /* node ID register (bank 0) */
138 #define MAR_ADR 8 /* multicast address registers (bank 1) */
139
140 #define DATAPORT 8 /* buffer mem port registers (bank 2) */
141 #define TX_START 10 /* transmit start register */
142 #define COL_CTRL 11 /* 16 collision control register */
143 #define BMPR12 12 /* reserved */
144 #define BMPR13 13 /* reserved */
145 #define RX_SKIP 14 /* skip received packet register */
146
147 #define LAN_CTRL 16 /* LAN card control register */
148
149 #define MAC_ID 0x1a /* hardware address */
150 #define UNGERMANN_MAC_ID 0x18 /* UNGERMANN-BASS hardware address */
151
152 /*
153 control bits
154 */
155 #define ENA_TMT_OK 0x80
156 #define ENA_TMT_REC 0x20
157 #define ENA_COL 0x04
158 #define ENA_16_COL 0x02
159 #define ENA_TBUS_ERR 0x01
160
161 #define ENA_PKT_RDY 0x80
162 #define ENA_BUS_ERR 0x40
163 #define ENA_LEN_ERR 0x08
164 #define ENA_ALG_ERR 0x04
165 #define ENA_CRC_ERR 0x02
166 #define ENA_OVR_FLO 0x01
167
168 /* flags */
169 #define F_TMT_RDY 0x80 /* can accept new packet */
170 #define F_NET_BSY 0x40 /* carrier is detected */
171 #define F_TMT_OK 0x20 /* send packet successfully */
172 #define F_SRT_PKT 0x10 /* short packet error */
173 #define F_COL_ERR 0x04 /* collision error */
174 #define F_16_COL 0x02 /* 16 collision error */
175 #define F_TBUS_ERR 0x01 /* bus read error */
176
177 #define F_PKT_RDY 0x80 /* packet(s) in buffer */
178 #define F_BUS_ERR 0x40 /* bus read error */
179 #define F_LEN_ERR 0x08 /* short packet */
180 #define F_ALG_ERR 0x04 /* frame error */
181 #define F_CRC_ERR 0x02 /* CRC error */
182 #define F_OVR_FLO 0x01 /* overflow error */
183
184 #define F_BUF_EMP 0x40 /* receive buffer is empty */
185
186 #define F_SKP_PKT 0x05 /* drop packet in buffer */
187
188 /* default bitmaps */
189 #define D_TX_INTR ( ENA_TMT_OK )
190 #define D_RX_INTR ( ENA_PKT_RDY | ENA_LEN_ERR \
191 | ENA_ALG_ERR | ENA_CRC_ERR | ENA_OVR_FLO )
192 #define TX_STAT_M ( F_TMT_RDY )
193 #define RX_STAT_M ( F_PKT_RDY | F_LEN_ERR \
194 | F_ALG_ERR | F_CRC_ERR | F_OVR_FLO )
195
196 /* commands */
197 #define D_TX_MODE 0x06 /* no tests, detect carrier */
198 #define ID_MATCHED 0x02 /* (RX_MODE) */
199 #define RECV_ALL 0x03 /* (RX_MODE) */
200 #define CONFIG0_DFL 0x5a /* 16bit bus, 4K x 2 Tx queues */
201 #define CONFIG0_DFL_1 0x5e /* 16bit bus, 8K x 2 Tx queues */
202 #define CONFIG0_RST 0xda /* Data Link Controller off (CONFIG_0) */
203 #define CONFIG0_RST_1 0xde /* Data Link Controller off (CONFIG_0) */
204 #define BANK_0 0xa0 /* bank 0 (CONFIG_1) */
205 #define BANK_1 0xa4 /* bank 1 (CONFIG_1) */
206 #define BANK_2 0xa8 /* bank 2 (CONFIG_1) */
207 #define CHIP_OFF 0x80 /* contrl chip power off (CONFIG_1) */
208 #define DO_TX 0x80 /* do transmit packet */
209 #define SEND_PKT 0x81 /* send a packet */
210 #define AUTO_MODE 0x07 /* Auto skip packet on 16 col detected */
211 #define MANU_MODE 0x03 /* Stop and skip packet on 16 col */
212 #define TDK_AUTO_MODE 0x47 /* Auto skip packet on 16 col detected */
213 #define TDK_MANU_MODE 0x43 /* Stop and skip packet on 16 col */
214 #define INTR_OFF 0x0d /* LAN controller ignores interrupts */
215 #define INTR_ON 0x1d /* LAN controller will catch interrupts */
216
217 #define TX_TIMEOUT ((400*HZ)/1000)
218
219 #define BANK_0U 0x20 /* bank 0 (CONFIG_1) */
220 #define BANK_1U 0x24 /* bank 1 (CONFIG_1) */
221 #define BANK_2U 0x28 /* bank 2 (CONFIG_1) */
222
223 static const struct net_device_ops fjn_netdev_ops = {
224 .ndo_open = fjn_open,
225 .ndo_stop = fjn_close,
226 .ndo_start_xmit = fjn_start_xmit,
227 .ndo_tx_timeout = fjn_tx_timeout,
228 .ndo_set_config = fjn_config,
229 .ndo_set_rx_mode = set_rx_mode,
230 .ndo_change_mtu = eth_change_mtu,
231 .ndo_set_mac_address = eth_mac_addr,
232 .ndo_validate_addr = eth_validate_addr,
233 };
234
235 static int fmvj18x_probe(struct pcmcia_device *link)
236 {
237 local_info_t *lp;
238 struct net_device *dev;
239
240 dev_dbg(&link->dev, "fmvj18x_attach()\n");
241
242 /* Make up a FMVJ18x specific data structure */
243 dev = alloc_etherdev(sizeof(local_info_t));
244 if (!dev)
245 return -ENOMEM;
246 lp = netdev_priv(dev);
247 link->priv = dev;
248 lp->p_dev = link;
249 lp->base = NULL;
250
251 /* The io structure describes IO port mapping */
252 link->resource[0]->end = 32;
253 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
254
255 /* General socket configuration */
256 link->config_flags |= CONF_ENABLE_IRQ;
257
258 dev->netdev_ops = &fjn_netdev_ops;
259 dev->watchdog_timeo = TX_TIMEOUT;
260
261 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
262
263 return fmvj18x_config(link);
264 } /* fmvj18x_attach */
265
266 /*====================================================================*/
267
268 static void fmvj18x_detach(struct pcmcia_device *link)
269 {
270 struct net_device *dev = link->priv;
271
272 dev_dbg(&link->dev, "fmvj18x_detach\n");
273
274 unregister_netdev(dev);
275
276 fmvj18x_release(link);
277
278 free_netdev(dev);
279 } /* fmvj18x_detach */
280
281 /*====================================================================*/
282
283 static int mfc_try_io_port(struct pcmcia_device *link)
284 {
285 int i, ret;
286 static const unsigned int serial_base[5] =
287 { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
288
289 for (i = 0; i < 5; i++) {
290 link->resource[1]->start = serial_base[i];
291 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
292 if (link->resource[1]->start == 0) {
293 link->resource[1]->end = 0;
294 pr_notice("out of resource for serial\n");
295 }
296 ret = pcmcia_request_io(link);
297 if (ret == 0)
298 return ret;
299 }
300 return ret;
301 }
302
303 static int ungermann_try_io_port(struct pcmcia_device *link)
304 {
305 int ret;
306 unsigned int ioaddr;
307 /*
308 Ungermann-Bass Access/CARD accepts 0x300,0x320,0x340,0x360
309 0x380,0x3c0 only for ioport.
310 */
311 for (ioaddr = 0x300; ioaddr < 0x3e0; ioaddr += 0x20) {
312 link->resource[0]->start = ioaddr;
313 ret = pcmcia_request_io(link);
314 if (ret == 0) {
315 /* calculate ConfigIndex value */
316 link->config_index =
317 ((link->resource[0]->start & 0x0f0) >> 3) | 0x22;
318 return ret;
319 }
320 }
321 return ret; /* RequestIO failed */
322 }
323
324 static int fmvj18x_ioprobe(struct pcmcia_device *p_dev, void *priv_data)
325 {
326 return 0; /* strange, but that's what the code did already before... */
327 }
328
329 static int fmvj18x_config(struct pcmcia_device *link)
330 {
331 struct net_device *dev = link->priv;
332 local_info_t *lp = netdev_priv(dev);
333 int i, ret;
334 unsigned int ioaddr;
335 cardtype_t cardtype;
336 char *card_name = "unknown";
337 u8 *buf;
338 size_t len;
339 u_char buggybuf[32];
340
341 dev_dbg(&link->dev, "fmvj18x_config\n");
342
343 link->io_lines = 5;
344
345 len = pcmcia_get_tuple(link, CISTPL_FUNCE, &buf);
346 kfree(buf);
347
348 if (len) {
349 /* Yes, I have CISTPL_FUNCE. Let's check CISTPL_MANFID */
350 ret = pcmcia_loop_config(link, fmvj18x_ioprobe, NULL);
351 if (ret != 0)
352 goto failed;
353
354 switch (link->manf_id) {
355 case MANFID_TDK:
356 cardtype = TDK;
357 if (link->card_id == PRODID_TDK_GN3410 ||
358 link->card_id == PRODID_TDK_NP9610 ||
359 link->card_id == PRODID_TDK_MN3200) {
360 /* MultiFunction Card */
361 link->config_base = 0x800;
362 link->config_index = 0x47;
363 link->resource[1]->end = 8;
364 }
365 break;
366 case MANFID_NEC:
367 cardtype = NEC; /* MultiFunction Card */
368 link->config_base = 0x800;
369 link->config_index = 0x47;
370 link->resource[1]->end = 8;
371 break;
372 case MANFID_KME:
373 cardtype = KME; /* MultiFunction Card */
374 link->config_base = 0x800;
375 link->config_index = 0x47;
376 link->resource[1]->end = 8;
377 break;
378 case MANFID_CONTEC:
379 cardtype = CONTEC;
380 break;
381 case MANFID_FUJITSU:
382 if (link->config_base == 0x0fe0)
383 cardtype = MBH10302;
384 else if (link->card_id == PRODID_FUJITSU_MBH10302)
385 /* RATOC REX-5588/9822/4886's PRODID are 0004(=MBH10302),
386 but these are MBH10304 based card. */
387 cardtype = MBH10304;
388 else if (link->card_id == PRODID_FUJITSU_MBH10304)
389 cardtype = MBH10304;
390 else
391 cardtype = LA501;
392 break;
393 default:
394 cardtype = MBH10304;
395 }
396 } else {
397 /* old type card */
398 switch (link->manf_id) {
399 case MANFID_FUJITSU:
400 if (link->card_id == PRODID_FUJITSU_MBH10304) {
401 cardtype = XXX10304; /* MBH10304 with buggy CIS */
402 link->config_index = 0x20;
403 } else {
404 cardtype = MBH10302; /* NextCom NC5310, etc. */
405 link->config_index = 1;
406 }
407 break;
408 case MANFID_UNGERMANN:
409 cardtype = UNGERMANN;
410 break;
411 default:
412 cardtype = MBH10302;
413 link->config_index = 1;
414 }
415 }
416
417 if (link->resource[1]->end != 0) {
418 ret = mfc_try_io_port(link);
419 if (ret != 0) goto failed;
420 } else if (cardtype == UNGERMANN) {
421 ret = ungermann_try_io_port(link);
422 if (ret != 0) goto failed;
423 } else {
424 ret = pcmcia_request_io(link);
425 if (ret)
426 goto failed;
427 }
428 ret = pcmcia_request_irq(link, fjn_interrupt);
429 if (ret)
430 goto failed;
431 ret = pcmcia_enable_device(link);
432 if (ret)
433 goto failed;
434
435 dev->irq = link->irq;
436 dev->base_addr = link->resource[0]->start;
437
438 if (resource_size(link->resource[1]) != 0) {
439 ret = fmvj18x_setup_mfc(link);
440 if (ret != 0) goto failed;
441 }
442
443 ioaddr = dev->base_addr;
444
445 /* Reset controller */
446 if (sram_config == 0)
447 outb(CONFIG0_RST, ioaddr + CONFIG_0);
448 else
449 outb(CONFIG0_RST_1, ioaddr + CONFIG_0);
450
451 /* Power On chip and select bank 0 */
452 if (cardtype == MBH10302)
453 outb(BANK_0, ioaddr + CONFIG_1);
454 else
455 outb(BANK_0U, ioaddr + CONFIG_1);
456
457 /* Set hardware address */
458 switch (cardtype) {
459 case MBH10304:
460 case TDK:
461 case LA501:
462 case CONTEC:
463 case NEC:
464 case KME:
465 if (cardtype == MBH10304) {
466 card_name = "FMV-J182";
467
468 len = pcmcia_get_tuple(link, CISTPL_FUNCE, &buf);
469 if (len < 11) {
470 kfree(buf);
471 goto failed;
472 }
473 /* Read MACID from CIS */
474 for (i = 5; i < 11; i++)
475 dev->dev_addr[i] = buf[i];
476 kfree(buf);
477 } else {
478 if (pcmcia_get_mac_from_cis(link, dev))
479 goto failed;
480 if( cardtype == TDK ) {
481 card_name = "TDK LAK-CD021";
482 } else if( cardtype == LA501 ) {
483 card_name = "LA501";
484 } else if( cardtype == NEC ) {
485 card_name = "PK-UG-J001";
486 } else if( cardtype == KME ) {
487 card_name = "Panasonic";
488 } else {
489 card_name = "C-NET(PC)C";
490 }
491 }
492 break;
493 case UNGERMANN:
494 /* Read MACID from register */
495 for (i = 0; i < 6; i++)
496 dev->dev_addr[i] = inb(ioaddr + UNGERMANN_MAC_ID + i);
497 card_name = "Access/CARD";
498 break;
499 case XXX10304:
500 /* Read MACID from Buggy CIS */
501 if (fmvj18x_get_hwinfo(link, buggybuf) == -1) {
502 pr_notice("unable to read hardware net address\n");
503 goto failed;
504 }
505 for (i = 0 ; i < 6; i++) {
506 dev->dev_addr[i] = buggybuf[i];
507 }
508 card_name = "FMV-J182";
509 break;
510 case MBH10302:
511 default:
512 /* Read MACID from register */
513 for (i = 0; i < 6; i++)
514 dev->dev_addr[i] = inb(ioaddr + MAC_ID + i);
515 card_name = "FMV-J181";
516 break;
517 }
518
519 lp->cardtype = cardtype;
520 SET_NETDEV_DEV(dev, &link->dev);
521
522 if (register_netdev(dev) != 0) {
523 pr_notice("register_netdev() failed\n");
524 goto failed;
525 }
526
527 /* print current configuration */
528 netdev_info(dev, "%s, sram %s, port %#3lx, irq %d, hw_addr %pM\n",
529 card_name, sram_config == 0 ? "4K TX*2" : "8K TX*2",
530 dev->base_addr, dev->irq, dev->dev_addr);
531
532 return 0;
533
534 failed:
535 fmvj18x_release(link);
536 return -ENODEV;
537 } /* fmvj18x_config */
538 /*====================================================================*/
539
540 static int fmvj18x_get_hwinfo(struct pcmcia_device *link, u_char *node_id)
541 {
542 u_char __iomem *base;
543 int i, j;
544
545 /* Allocate a small memory window */
546 link->resource[2]->flags |= WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
547 link->resource[2]->start = 0; link->resource[2]->end = 0;
548 i = pcmcia_request_window(link, link->resource[2], 0);
549 if (i != 0)
550 return -1;
551
552 base = ioremap(link->resource[2]->start, resource_size(link->resource[2]));
553 pcmcia_map_mem_page(link, link->resource[2], 0);
554
555 /*
556 * MBH10304 CISTPL_FUNCE_LAN_NODE_ID format
557 * 22 0d xx xx xx 04 06 yy yy yy yy yy yy ff
558 * 'xx' is garbage.
559 * 'yy' is MAC address.
560 */
561 for (i = 0; i < 0x200; i++) {
562 if (readb(base+i*2) == 0x22) {
563 if (readb(base+(i-1)*2) == 0xff &&
564 readb(base+(i+5)*2) == 0x04 &&
565 readb(base+(i+6)*2) == 0x06 &&
566 readb(base+(i+13)*2) == 0xff)
567 break;
568 }
569 }
570
571 if (i != 0x200) {
572 for (j = 0 ; j < 6; j++,i++) {
573 node_id[j] = readb(base+(i+7)*2);
574 }
575 }
576
577 iounmap(base);
578 j = pcmcia_release_window(link, link->resource[2]);
579 return (i != 0x200) ? 0 : -1;
580
581 } /* fmvj18x_get_hwinfo */
582 /*====================================================================*/
583
584 static int fmvj18x_setup_mfc(struct pcmcia_device *link)
585 {
586 int i;
587 struct net_device *dev = link->priv;
588 unsigned int ioaddr;
589 local_info_t *lp = netdev_priv(dev);
590
591 /* Allocate a small memory window */
592 link->resource[3]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
593 link->resource[3]->start = link->resource[3]->end = 0;
594 i = pcmcia_request_window(link, link->resource[3], 0);
595 if (i != 0)
596 return -1;
597
598 lp->base = ioremap(link->resource[3]->start,
599 resource_size(link->resource[3]));
600 if (lp->base == NULL) {
601 netdev_notice(dev, "ioremap failed\n");
602 return -1;
603 }
604
605 i = pcmcia_map_mem_page(link, link->resource[3], 0);
606 if (i != 0) {
607 iounmap(lp->base);
608 lp->base = NULL;
609 return -1;
610 }
611
612 ioaddr = dev->base_addr;
613 writeb(0x47, lp->base+0x800); /* Config Option Register of LAN */
614 writeb(0x0, lp->base+0x802); /* Config and Status Register */
615
616 writeb(ioaddr & 0xff, lp->base+0x80a); /* I/O Base(Low) of LAN */
617 writeb((ioaddr >> 8) & 0xff, lp->base+0x80c); /* I/O Base(High) of LAN */
618
619 writeb(0x45, lp->base+0x820); /* Config Option Register of Modem */
620 writeb(0x8, lp->base+0x822); /* Config and Status Register */
621
622 return 0;
623
624 }
625 /*====================================================================*/
626
627 static void fmvj18x_release(struct pcmcia_device *link)
628 {
629
630 struct net_device *dev = link->priv;
631 local_info_t *lp = netdev_priv(dev);
632 u_char __iomem *tmp;
633
634 dev_dbg(&link->dev, "fmvj18x_release\n");
635
636 if (lp->base != NULL) {
637 tmp = lp->base;
638 lp->base = NULL; /* set NULL before iounmap */
639 iounmap(tmp);
640 }
641
642 pcmcia_disable_device(link);
643
644 }
645
646 static int fmvj18x_suspend(struct pcmcia_device *link)
647 {
648 struct net_device *dev = link->priv;
649
650 if (link->open)
651 netif_device_detach(dev);
652
653 return 0;
654 }
655
656 static int fmvj18x_resume(struct pcmcia_device *link)
657 {
658 struct net_device *dev = link->priv;
659
660 if (link->open) {
661 fjn_reset(dev);
662 netif_device_attach(dev);
663 }
664
665 return 0;
666 }
667
668 /*====================================================================*/
669
670 static const struct pcmcia_device_id fmvj18x_ids[] = {
671 PCMCIA_DEVICE_MANF_CARD(0x0004, 0x0004),
672 PCMCIA_DEVICE_PROD_ID12("EAGLE Technology", "NE200 ETHERNET LAN MBH10302 04", 0x528c88c4, 0x74f91e59),
673 PCMCIA_DEVICE_PROD_ID12("Eiger Labs,Inc", "EPX-10BT PC Card Ethernet 10BT", 0x53af556e, 0x877f9922),
674 PCMCIA_DEVICE_PROD_ID12("Eiger labs,Inc.", "EPX-10BT PC Card Ethernet 10BT", 0xf47e6c66, 0x877f9922),
675 PCMCIA_DEVICE_PROD_ID12("FUJITSU", "LAN Card(FMV-J182)", 0x6ee5a3d8, 0x5baf31db),
676 PCMCIA_DEVICE_PROD_ID12("FUJITSU", "MBH10308", 0x6ee5a3d8, 0x3f04875e),
677 PCMCIA_DEVICE_PROD_ID12("FUJITSU TOWA", "LA501", 0xb8451188, 0x12939ba2),
678 PCMCIA_DEVICE_PROD_ID12("HITACHI", "HT-4840-11", 0xf4f43949, 0x773910f4),
679 PCMCIA_DEVICE_PROD_ID12("NextComK.K.", "NC5310B Ver1.0 ", 0x8cef4d3a, 0x075fc7b6),
680 PCMCIA_DEVICE_PROD_ID12("NextComK.K.", "NC5310 Ver1.0 ", 0x8cef4d3a, 0xbccf43e6),
681 PCMCIA_DEVICE_PROD_ID12("RATOC System Inc.", "10BASE_T CARD R280", 0x85c10e17, 0xd9413666),
682 PCMCIA_DEVICE_PROD_ID12("TDK", "LAC-CD02x", 0x1eae9475, 0x8fa0ee70),
683 PCMCIA_DEVICE_PROD_ID12("TDK", "LAC-CF010", 0x1eae9475, 0x7683bc9a),
684 PCMCIA_DEVICE_PROD_ID1("CONTEC Co.,Ltd.", 0x58d8fee2),
685 PCMCIA_DEVICE_PROD_ID1("PCMCIA LAN MBH10304 ES", 0x2599f454),
686 PCMCIA_DEVICE_PROD_ID1("PCMCIA MBH10302", 0x8f4005da),
687 PCMCIA_DEVICE_PROD_ID1("UBKK,V2.0", 0x90888080),
688 PCMCIA_PFC_DEVICE_PROD_ID12(0, "TDK", "GlobalNetworker 3410/3412", 0x1eae9475, 0xd9a93bed),
689 PCMCIA_PFC_DEVICE_PROD_ID12(0, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831b1064),
690 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0105, 0x0d0a),
691 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0105, 0x0e0a),
692 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0032, 0x0e01),
693 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0032, 0x0a05),
694 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0032, 0x0b05),
695 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0032, 0x1101),
696 PCMCIA_DEVICE_NULL,
697 };
698 MODULE_DEVICE_TABLE(pcmcia, fmvj18x_ids);
699
700 static struct pcmcia_driver fmvj18x_cs_driver = {
701 .owner = THIS_MODULE,
702 .name = "fmvj18x_cs",
703 .probe = fmvj18x_probe,
704 .remove = fmvj18x_detach,
705 .id_table = fmvj18x_ids,
706 .suspend = fmvj18x_suspend,
707 .resume = fmvj18x_resume,
708 };
709
710 static int __init init_fmvj18x_cs(void)
711 {
712 return pcmcia_register_driver(&fmvj18x_cs_driver);
713 }
714
715 static void __exit exit_fmvj18x_cs(void)
716 {
717 pcmcia_unregister_driver(&fmvj18x_cs_driver);
718 }
719
720 module_init(init_fmvj18x_cs);
721 module_exit(exit_fmvj18x_cs);
722
723 /*====================================================================*/
724
725 static irqreturn_t fjn_interrupt(int dummy, void *dev_id)
726 {
727 struct net_device *dev = dev_id;
728 local_info_t *lp = netdev_priv(dev);
729 unsigned int ioaddr;
730 unsigned short tx_stat, rx_stat;
731
732 ioaddr = dev->base_addr;
733
734 /* avoid multiple interrupts */
735 outw(0x0000, ioaddr + TX_INTR);
736
737 /* wait for a while */
738 udelay(1);
739
740 /* get status */
741 tx_stat = inb(ioaddr + TX_STATUS);
742 rx_stat = inb(ioaddr + RX_STATUS);
743
744 /* clear status */
745 outb(tx_stat, ioaddr + TX_STATUS);
746 outb(rx_stat, ioaddr + RX_STATUS);
747
748 pr_debug("%s: interrupt, rx_status %02x.\n", dev->name, rx_stat);
749 pr_debug(" tx_status %02x.\n", tx_stat);
750
751 if (rx_stat || (inb(ioaddr + RX_MODE) & F_BUF_EMP) == 0) {
752 /* there is packet(s) in rx buffer */
753 fjn_rx(dev);
754 }
755 if (tx_stat & F_TMT_RDY) {
756 dev->stats.tx_packets += lp->sent ;
757 lp->sent = 0 ;
758 if (lp->tx_queue) {
759 outb(DO_TX | lp->tx_queue, ioaddr + TX_START);
760 lp->sent = lp->tx_queue ;
761 lp->tx_queue = 0;
762 lp->tx_queue_len = 0;
763 dev->trans_start = jiffies;
764 } else {
765 lp->tx_started = 0;
766 }
767 netif_wake_queue(dev);
768 }
769 pr_debug("%s: exiting interrupt,\n", dev->name);
770 pr_debug(" tx_status %02x, rx_status %02x.\n", tx_stat, rx_stat);
771
772 outb(D_TX_INTR, ioaddr + TX_INTR);
773 outb(D_RX_INTR, ioaddr + RX_INTR);
774
775 if (lp->base != NULL) {
776 /* Ack interrupt for multifunction card */
777 writeb(0x01, lp->base+0x802);
778 writeb(0x09, lp->base+0x822);
779 }
780
781 return IRQ_HANDLED;
782
783 } /* fjn_interrupt */
784
785 /*====================================================================*/
786
787 static void fjn_tx_timeout(struct net_device *dev)
788 {
789 struct local_info_t *lp = netdev_priv(dev);
790 unsigned int ioaddr = dev->base_addr;
791
792 netdev_notice(dev, "transmit timed out with status %04x, %s?\n",
793 htons(inw(ioaddr + TX_STATUS)),
794 inb(ioaddr + TX_STATUS) & F_TMT_RDY
795 ? "IRQ conflict" : "network cable problem");
796 netdev_notice(dev, "timeout registers: %04x %04x %04x "
797 "%04x %04x %04x %04x %04x.\n",
798 htons(inw(ioaddr + 0)), htons(inw(ioaddr + 2)),
799 htons(inw(ioaddr + 4)), htons(inw(ioaddr + 6)),
800 htons(inw(ioaddr + 8)), htons(inw(ioaddr + 10)),
801 htons(inw(ioaddr + 12)), htons(inw(ioaddr + 14)));
802 dev->stats.tx_errors++;
803 /* ToDo: We should try to restart the adaptor... */
804 local_irq_disable();
805 fjn_reset(dev);
806
807 lp->tx_started = 0;
808 lp->tx_queue = 0;
809 lp->tx_queue_len = 0;
810 lp->sent = 0;
811 lp->open_time = jiffies;
812 local_irq_enable();
813 netif_wake_queue(dev);
814 }
815
816 static netdev_tx_t fjn_start_xmit(struct sk_buff *skb,
817 struct net_device *dev)
818 {
819 struct local_info_t *lp = netdev_priv(dev);
820 unsigned int ioaddr = dev->base_addr;
821 short length = skb->len;
822
823 if (length < ETH_ZLEN)
824 {
825 if (skb_padto(skb, ETH_ZLEN))
826 return NETDEV_TX_OK;
827 length = ETH_ZLEN;
828 }
829
830 netif_stop_queue(dev);
831
832 {
833 unsigned char *buf = skb->data;
834
835 if (length > ETH_FRAME_LEN) {
836 netdev_notice(dev, "Attempting to send a large packet (%d bytes)\n",
837 length);
838 return NETDEV_TX_BUSY;
839 }
840
841 netdev_dbg(dev, "Transmitting a packet of length %lu\n",
842 (unsigned long)skb->len);
843 dev->stats.tx_bytes += skb->len;
844
845 /* Disable both interrupts. */
846 outw(0x0000, ioaddr + TX_INTR);
847
848 /* wait for a while */
849 udelay(1);
850
851 outw(length, ioaddr + DATAPORT);
852 outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1);
853
854 lp->tx_queue++;
855 lp->tx_queue_len += ((length+3) & ~1);
856
857 if (lp->tx_started == 0) {
858 /* If the Tx is idle, always trigger a transmit. */
859 outb(DO_TX | lp->tx_queue, ioaddr + TX_START);
860 lp->sent = lp->tx_queue ;
861 lp->tx_queue = 0;
862 lp->tx_queue_len = 0;
863 lp->tx_started = 1;
864 netif_start_queue(dev);
865 } else {
866 if( sram_config == 0 ) {
867 if (lp->tx_queue_len < (4096 - (ETH_FRAME_LEN +2)) )
868 /* Yes, there is room for one more packet. */
869 netif_start_queue(dev);
870 } else {
871 if (lp->tx_queue_len < (8192 - (ETH_FRAME_LEN +2)) &&
872 lp->tx_queue < 127 )
873 /* Yes, there is room for one more packet. */
874 netif_start_queue(dev);
875 }
876 }
877
878 /* Re-enable interrupts */
879 outb(D_TX_INTR, ioaddr + TX_INTR);
880 outb(D_RX_INTR, ioaddr + RX_INTR);
881 }
882 dev_kfree_skb (skb);
883
884 return NETDEV_TX_OK;
885 } /* fjn_start_xmit */
886
887 /*====================================================================*/
888
889 static void fjn_reset(struct net_device *dev)
890 {
891 struct local_info_t *lp = netdev_priv(dev);
892 unsigned int ioaddr = dev->base_addr;
893 int i;
894
895 netdev_dbg(dev, "fjn_reset() called\n");
896
897 /* Reset controller */
898 if( sram_config == 0 )
899 outb(CONFIG0_RST, ioaddr + CONFIG_0);
900 else
901 outb(CONFIG0_RST_1, ioaddr + CONFIG_0);
902
903 /* Power On chip and select bank 0 */
904 if (lp->cardtype == MBH10302)
905 outb(BANK_0, ioaddr + CONFIG_1);
906 else
907 outb(BANK_0U, ioaddr + CONFIG_1);
908
909 /* Set Tx modes */
910 outb(D_TX_MODE, ioaddr + TX_MODE);
911 /* set Rx modes */
912 outb(ID_MATCHED, ioaddr + RX_MODE);
913
914 /* Set hardware address */
915 for (i = 0; i < 6; i++)
916 outb(dev->dev_addr[i], ioaddr + NODE_ID + i);
917
918 /* (re)initialize the multicast table */
919 set_rx_mode(dev);
920
921 /* Switch to bank 2 (runtime mode) */
922 if (lp->cardtype == MBH10302)
923 outb(BANK_2, ioaddr + CONFIG_1);
924 else
925 outb(BANK_2U, ioaddr + CONFIG_1);
926
927 /* set 16col ctrl bits */
928 if( lp->cardtype == TDK || lp->cardtype == CONTEC)
929 outb(TDK_AUTO_MODE, ioaddr + COL_CTRL);
930 else
931 outb(AUTO_MODE, ioaddr + COL_CTRL);
932
933 /* clear Reserved Regs */
934 outb(0x00, ioaddr + BMPR12);
935 outb(0x00, ioaddr + BMPR13);
936
937 /* reset Skip packet reg. */
938 outb(0x01, ioaddr + RX_SKIP);
939
940 /* Enable Tx and Rx */
941 if( sram_config == 0 )
942 outb(CONFIG0_DFL, ioaddr + CONFIG_0);
943 else
944 outb(CONFIG0_DFL_1, ioaddr + CONFIG_0);
945
946 /* Init receive pointer ? */
947 inw(ioaddr + DATAPORT);
948 inw(ioaddr + DATAPORT);
949
950 /* Clear all status */
951 outb(0xff, ioaddr + TX_STATUS);
952 outb(0xff, ioaddr + RX_STATUS);
953
954 if (lp->cardtype == MBH10302)
955 outb(INTR_OFF, ioaddr + LAN_CTRL);
956
957 /* Turn on Rx interrupts */
958 outb(D_TX_INTR, ioaddr + TX_INTR);
959 outb(D_RX_INTR, ioaddr + RX_INTR);
960
961 /* Turn on interrupts from LAN card controller */
962 if (lp->cardtype == MBH10302)
963 outb(INTR_ON, ioaddr + LAN_CTRL);
964 } /* fjn_reset */
965
966 /*====================================================================*/
967
968 static void fjn_rx(struct net_device *dev)
969 {
970 unsigned int ioaddr = dev->base_addr;
971 int boguscount = 10; /* 5 -> 10: by agy 19940922 */
972
973 pr_debug("%s: in rx_packet(), rx_status %02x.\n",
974 dev->name, inb(ioaddr + RX_STATUS));
975
976 while ((inb(ioaddr + RX_MODE) & F_BUF_EMP) == 0) {
977 u_short status = inw(ioaddr + DATAPORT);
978
979 netdev_dbg(dev, "Rxing packet mode %02x status %04x.\n",
980 inb(ioaddr + RX_MODE), status);
981 #ifndef final_version
982 if (status == 0) {
983 outb(F_SKP_PKT, ioaddr + RX_SKIP);
984 break;
985 }
986 #endif
987 if ((status & 0xF0) != 0x20) { /* There was an error. */
988 dev->stats.rx_errors++;
989 if (status & F_LEN_ERR) dev->stats.rx_length_errors++;
990 if (status & F_ALG_ERR) dev->stats.rx_frame_errors++;
991 if (status & F_CRC_ERR) dev->stats.rx_crc_errors++;
992 if (status & F_OVR_FLO) dev->stats.rx_over_errors++;
993 } else {
994 u_short pkt_len = inw(ioaddr + DATAPORT);
995 /* Malloc up new buffer. */
996 struct sk_buff *skb;
997
998 if (pkt_len > 1550) {
999 netdev_notice(dev, "The FMV-18x claimed a very large packet, size %d\n",
1000 pkt_len);
1001 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1002 dev->stats.rx_errors++;
1003 break;
1004 }
1005 skb = dev_alloc_skb(pkt_len+2);
1006 if (skb == NULL) {
1007 netdev_notice(dev, "Memory squeeze, dropping packet (len %d)\n",
1008 pkt_len);
1009 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1010 dev->stats.rx_dropped++;
1011 break;
1012 }
1013
1014 skb_reserve(skb, 2);
1015 insw(ioaddr + DATAPORT, skb_put(skb, pkt_len),
1016 (pkt_len + 1) >> 1);
1017 skb->protocol = eth_type_trans(skb, dev);
1018
1019 {
1020 int i;
1021 pr_debug("%s: Rxed packet of length %d: ",
1022 dev->name, pkt_len);
1023 for (i = 0; i < 14; i++)
1024 pr_debug(" %02x", skb->data[i]);
1025 pr_debug(".\n");
1026 }
1027
1028 netif_rx(skb);
1029 dev->stats.rx_packets++;
1030 dev->stats.rx_bytes += pkt_len;
1031 }
1032 if (--boguscount <= 0)
1033 break;
1034 }
1035
1036 /* If any worth-while packets have been received, dev_rint()
1037 has done a netif_wake_queue() for us and will work on them
1038 when we get to the bottom-half routine. */
1039 /*
1040 if (lp->cardtype != TDK) {
1041 int i;
1042 for (i = 0; i < 20; i++) {
1043 if ((inb(ioaddr + RX_MODE) & F_BUF_EMP) == F_BUF_EMP)
1044 break;
1045 (void)inw(ioaddr + DATAPORT); /+ dummy status read +/
1046 outb(F_SKP_PKT, ioaddr + RX_SKIP);
1047 }
1048
1049 if (i > 0)
1050 pr_debug("%s: Exint Rx packet with mode %02x after "
1051 "%d ticks.\n", dev->name, inb(ioaddr + RX_MODE), i);
1052 }
1053 */
1054 } /* fjn_rx */
1055
1056 /*====================================================================*/
1057
1058 static void netdev_get_drvinfo(struct net_device *dev,
1059 struct ethtool_drvinfo *info)
1060 {
1061 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
1062 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
1063 snprintf(info->bus_info, sizeof(info->bus_info),
1064 "PCMCIA 0x%lx", dev->base_addr);
1065 }
1066
1067 static const struct ethtool_ops netdev_ethtool_ops = {
1068 .get_drvinfo = netdev_get_drvinfo,
1069 };
1070
1071 static int fjn_config(struct net_device *dev, struct ifmap *map){
1072 return 0;
1073 }
1074
1075 static int fjn_open(struct net_device *dev)
1076 {
1077 struct local_info_t *lp = netdev_priv(dev);
1078 struct pcmcia_device *link = lp->p_dev;
1079
1080 pr_debug("fjn_open('%s').\n", dev->name);
1081
1082 if (!pcmcia_dev_present(link))
1083 return -ENODEV;
1084
1085 link->open++;
1086
1087 fjn_reset(dev);
1088
1089 lp->tx_started = 0;
1090 lp->tx_queue = 0;
1091 lp->tx_queue_len = 0;
1092 lp->open_time = jiffies;
1093 netif_start_queue(dev);
1094
1095 return 0;
1096 } /* fjn_open */
1097
1098 /*====================================================================*/
1099
1100 static int fjn_close(struct net_device *dev)
1101 {
1102 struct local_info_t *lp = netdev_priv(dev);
1103 struct pcmcia_device *link = lp->p_dev;
1104 unsigned int ioaddr = dev->base_addr;
1105
1106 pr_debug("fjn_close('%s').\n", dev->name);
1107
1108 lp->open_time = 0;
1109 netif_stop_queue(dev);
1110
1111 /* Set configuration register 0 to disable Tx and Rx. */
1112 if( sram_config == 0 )
1113 outb(CONFIG0_RST ,ioaddr + CONFIG_0);
1114 else
1115 outb(CONFIG0_RST_1 ,ioaddr + CONFIG_0);
1116
1117 /* Update the statistics -- ToDo. */
1118
1119 /* Power-down the chip. Green, green, green! */
1120 outb(CHIP_OFF ,ioaddr + CONFIG_1);
1121
1122 /* Set the ethernet adaptor disable IRQ */
1123 if (lp->cardtype == MBH10302)
1124 outb(INTR_OFF, ioaddr + LAN_CTRL);
1125
1126 link->open--;
1127
1128 return 0;
1129 } /* fjn_close */
1130
1131 /*====================================================================*/
1132
1133 /*
1134 Set the multicast/promiscuous mode for this adaptor.
1135 */
1136
1137 static void set_rx_mode(struct net_device *dev)
1138 {
1139 unsigned int ioaddr = dev->base_addr;
1140 u_char mc_filter[8]; /* Multicast hash filter */
1141 u_long flags;
1142 int i;
1143
1144 int saved_bank;
1145 int saved_config_0 = inb(ioaddr + CONFIG_0);
1146
1147 local_irq_save(flags);
1148
1149 /* Disable Tx and Rx */
1150 if (sram_config == 0)
1151 outb(CONFIG0_RST, ioaddr + CONFIG_0);
1152 else
1153 outb(CONFIG0_RST_1, ioaddr + CONFIG_0);
1154
1155 if (dev->flags & IFF_PROMISC) {
1156 memset(mc_filter, 0xff, sizeof(mc_filter));
1157 outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */
1158 } else if (netdev_mc_count(dev) > MC_FILTERBREAK ||
1159 (dev->flags & IFF_ALLMULTI)) {
1160 /* Too many to filter perfectly -- accept all multicasts. */
1161 memset(mc_filter, 0xff, sizeof(mc_filter));
1162 outb(2, ioaddr + RX_MODE); /* Use normal mode. */
1163 } else if (netdev_mc_empty(dev)) {
1164 memset(mc_filter, 0x00, sizeof(mc_filter));
1165 outb(1, ioaddr + RX_MODE); /* Ignore almost all multicasts. */
1166 } else {
1167 struct netdev_hw_addr *ha;
1168
1169 memset(mc_filter, 0, sizeof(mc_filter));
1170 netdev_for_each_mc_addr(ha, dev) {
1171 unsigned int bit = ether_crc_le(ETH_ALEN, ha->addr) >> 26;
1172 mc_filter[bit >> 3] |= (1 << (bit & 7));
1173 }
1174 outb(2, ioaddr + RX_MODE); /* Use normal mode. */
1175 }
1176
1177 /* Switch to bank 1 and set the multicast table. */
1178 saved_bank = inb(ioaddr + CONFIG_1);
1179 outb(0xe4, ioaddr + CONFIG_1);
1180
1181 for (i = 0; i < 8; i++)
1182 outb(mc_filter[i], ioaddr + MAR_ADR + i);
1183 outb(saved_bank, ioaddr + CONFIG_1);
1184
1185 outb(saved_config_0, ioaddr + CONFIG_0);
1186
1187 local_irq_restore(flags);
1188 }