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