xref: /openbmc/linux/drivers/net/ethernet/8390/etherh.c (revision f029c781)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *  linux/drivers/acorn/net/etherh.c
4  *
5  *  Copyright (C) 2000-2002 Russell King
6  *
7  * NS8390 I-cubed EtherH and ANT EtherM specific driver
8  * Thanks to I-Cubed for information on their cards.
9  * EtherM conversion (C) 1999 Chris Kemp and Tim Watterton
10  * EtherM integration (C) 2000 Aleph One Ltd (Tak-Shing Chan)
11  * EtherM integration re-engineered by Russell King.
12  *
13  * Changelog:
14  *  08-12-1996	RMK	1.00	Created
15  *		RMK	1.03	Added support for EtherLan500 cards
16  *  23-11-1997	RMK	1.04	Added media autodetection
17  *  16-04-1998	RMK	1.05	Improved media autodetection
18  *  10-02-2000	RMK	1.06	Updated for 2.3.43
19  *  13-05-2000	RMK	1.07	Updated for 2.3.99-pre8
20  *  12-10-1999  CK/TEW		EtherM driver first release
21  *  21-12-2000	TTC		EtherH/EtherM integration
22  *  25-12-2000	RMK	1.08	Clean integration of EtherM into this driver.
23  *  03-01-2002	RMK	1.09	Always enable IRQs if we're in the nic slot.
24  */
25 
26 #include <linux/module.h>
27 #include <linux/kernel.h>
28 #include <linux/types.h>
29 #include <linux/fcntl.h>
30 #include <linux/interrupt.h>
31 #include <linux/ioport.h>
32 #include <linux/in.h>
33 #include <linux/string.h>
34 #include <linux/errno.h>
35 #include <linux/netdevice.h>
36 #include <linux/etherdevice.h>
37 #include <linux/ethtool.h>
38 #include <linux/skbuff.h>
39 #include <linux/delay.h>
40 #include <linux/device.h>
41 #include <linux/init.h>
42 #include <linux/bitops.h>
43 #include <linux/jiffies.h>
44 
45 #include <asm/ecard.h>
46 #include <asm/io.h>
47 #include <asm/system_info.h>
48 
49 #define EI_SHIFT(x)	(ei_local->reg_offset[x])
50 
51 #define ei_inb(_p)	 readb((void __iomem *)_p)
52 #define ei_outb(_v,_p)	 writeb(_v,(void __iomem *)_p)
53 #define ei_inb_p(_p)	 readb((void __iomem *)_p)
54 #define ei_outb_p(_v,_p) writeb(_v,(void __iomem *)_p)
55 
56 #define DRV_NAME	"etherh"
57 #define DRV_VERSION	"1.11"
58 
59 static char version[] =
60 	"EtherH/EtherM Driver (c) 2002-2004 Russell King " DRV_VERSION "\n";
61 
62 #include "lib8390.c"
63 
64 struct etherh_priv {
65 	void __iomem	*ioc_fast;
66 	void __iomem	*memc;
67 	void __iomem	*dma_base;
68 	unsigned int	id;
69 	void __iomem	*ctrl_port;
70 	unsigned char	ctrl;
71 	u32		supported;
72 };
73 
74 struct etherh_data {
75 	unsigned long	ns8390_offset;
76 	unsigned long	dataport_offset;
77 	unsigned long	ctrlport_offset;
78 	int		ctrl_ioc;
79 	const char	name[16];
80 	u32		supported;
81 	unsigned char	tx_start_page;
82 	unsigned char	stop_page;
83 };
84 
85 MODULE_AUTHOR("Russell King");
86 MODULE_DESCRIPTION("EtherH/EtherM driver");
87 MODULE_LICENSE("GPL");
88 
89 #define ETHERH500_DATAPORT	0x800	/* MEMC */
90 #define ETHERH500_NS8390	0x000	/* MEMC */
91 #define ETHERH500_CTRLPORT	0x800	/* IOC  */
92 
93 #define ETHERH600_DATAPORT	0x040	/* MEMC */
94 #define ETHERH600_NS8390	0x800	/* MEMC */
95 #define ETHERH600_CTRLPORT	0x200	/* MEMC */
96 
97 #define ETHERH_CP_IE		1
98 #define ETHERH_CP_IF		2
99 #define ETHERH_CP_HEARTBEAT	2
100 
101 #define ETHERH_TX_START_PAGE	1
102 #define ETHERH_STOP_PAGE	127
103 
104 /*
105  * These came from CK/TEW
106  */
107 #define ETHERM_DATAPORT		0x200	/* MEMC */
108 #define ETHERM_NS8390		0x800	/* MEMC */
109 #define ETHERM_CTRLPORT		0x23c	/* MEMC */
110 
111 #define ETHERM_TX_START_PAGE	64
112 #define ETHERM_STOP_PAGE	127
113 
114 /* ------------------------------------------------------------------------ */
115 
116 #define etherh_priv(dev) \
117  ((struct etherh_priv *)(((char *)netdev_priv(dev)) + sizeof(struct ei_device)))
118 
etherh_set_ctrl(struct etherh_priv * eh,unsigned char mask)119 static inline void etherh_set_ctrl(struct etherh_priv *eh, unsigned char mask)
120 {
121 	unsigned char ctrl = eh->ctrl | mask;
122 	eh->ctrl = ctrl;
123 	writeb(ctrl, eh->ctrl_port);
124 }
125 
etherh_clr_ctrl(struct etherh_priv * eh,unsigned char mask)126 static inline void etherh_clr_ctrl(struct etherh_priv *eh, unsigned char mask)
127 {
128 	unsigned char ctrl = eh->ctrl & ~mask;
129 	eh->ctrl = ctrl;
130 	writeb(ctrl, eh->ctrl_port);
131 }
132 
etherh_get_stat(struct etherh_priv * eh)133 static inline unsigned int etherh_get_stat(struct etherh_priv *eh)
134 {
135 	return readb(eh->ctrl_port);
136 }
137 
138 
139 
140 
etherh_irq_enable(ecard_t * ec,int irqnr)141 static void etherh_irq_enable(ecard_t *ec, int irqnr)
142 {
143 	struct etherh_priv *eh = ec->irq_data;
144 
145 	etherh_set_ctrl(eh, ETHERH_CP_IE);
146 }
147 
etherh_irq_disable(ecard_t * ec,int irqnr)148 static void etherh_irq_disable(ecard_t *ec, int irqnr)
149 {
150 	struct etherh_priv *eh = ec->irq_data;
151 
152 	etherh_clr_ctrl(eh, ETHERH_CP_IE);
153 }
154 
155 static expansioncard_ops_t etherh_ops = {
156 	.irqenable	= etherh_irq_enable,
157 	.irqdisable	= etherh_irq_disable,
158 };
159 
160 
161 
162 
163 static void
etherh_setif(struct net_device * dev)164 etherh_setif(struct net_device *dev)
165 {
166 	struct ei_device *ei_local = netdev_priv(dev);
167 	unsigned long flags;
168 	void __iomem *addr;
169 
170 	local_irq_save(flags);
171 
172 	/* set the interface type */
173 	switch (etherh_priv(dev)->id) {
174 	case PROD_I3_ETHERLAN600:
175 	case PROD_I3_ETHERLAN600A:
176 		addr = (void __iomem *)dev->base_addr + EN0_RCNTHI;
177 
178 		switch (dev->if_port) {
179 		case IF_PORT_10BASE2:
180 			writeb((readb(addr) & 0xf8) | 1, addr);
181 			break;
182 		case IF_PORT_10BASET:
183 			writeb((readb(addr) & 0xf8), addr);
184 			break;
185 		}
186 		break;
187 
188 	case PROD_I3_ETHERLAN500:
189 		switch (dev->if_port) {
190 		case IF_PORT_10BASE2:
191 			etherh_clr_ctrl(etherh_priv(dev), ETHERH_CP_IF);
192 			break;
193 
194 		case IF_PORT_10BASET:
195 			etherh_set_ctrl(etherh_priv(dev), ETHERH_CP_IF);
196 			break;
197 		}
198 		break;
199 
200 	default:
201 		break;
202 	}
203 
204 	local_irq_restore(flags);
205 }
206 
207 static int
etherh_getifstat(struct net_device * dev)208 etherh_getifstat(struct net_device *dev)
209 {
210 	struct ei_device *ei_local = netdev_priv(dev);
211 	void __iomem *addr;
212 	int stat = 0;
213 
214 	switch (etherh_priv(dev)->id) {
215 	case PROD_I3_ETHERLAN600:
216 	case PROD_I3_ETHERLAN600A:
217 		addr = (void __iomem *)dev->base_addr + EN0_RCNTHI;
218 		switch (dev->if_port) {
219 		case IF_PORT_10BASE2:
220 			stat = 1;
221 			break;
222 		case IF_PORT_10BASET:
223 			stat = readb(addr) & 4;
224 			break;
225 		}
226 		break;
227 
228 	case PROD_I3_ETHERLAN500:
229 		switch (dev->if_port) {
230 		case IF_PORT_10BASE2:
231 			stat = 1;
232 			break;
233 		case IF_PORT_10BASET:
234 			stat = etherh_get_stat(etherh_priv(dev)) & ETHERH_CP_HEARTBEAT;
235 			break;
236 		}
237 		break;
238 
239 	default:
240 		stat = 0;
241 		break;
242 	}
243 
244 	return stat != 0;
245 }
246 
247 /*
248  * Configure the interface.  Note that we ignore the other
249  * parts of ifmap, since its mostly meaningless for this driver.
250  */
etherh_set_config(struct net_device * dev,struct ifmap * map)251 static int etherh_set_config(struct net_device *dev, struct ifmap *map)
252 {
253 	switch (map->port) {
254 	case IF_PORT_10BASE2:
255 	case IF_PORT_10BASET:
256 		/*
257 		 * If the user explicitly sets the interface
258 		 * media type, turn off automedia detection.
259 		 */
260 		dev->flags &= ~IFF_AUTOMEDIA;
261 		dev->if_port = map->port;
262 		break;
263 
264 	default:
265 		return -EINVAL;
266 	}
267 
268 	etherh_setif(dev);
269 
270 	return 0;
271 }
272 
273 /*
274  * Reset the 8390 (hard reset).  Note that we can't actually do this.
275  */
276 static void
etherh_reset(struct net_device * dev)277 etherh_reset(struct net_device *dev)
278 {
279 	struct ei_device *ei_local = netdev_priv(dev);
280 	void __iomem *addr = (void __iomem *)dev->base_addr;
281 
282 	writeb(E8390_NODMA+E8390_PAGE0+E8390_STOP, addr);
283 
284 	/*
285 	 * See if we need to change the interface type.
286 	 * Note that we use 'interface_num' as a flag
287 	 * to indicate that we need to change the media.
288 	 */
289 	if (dev->flags & IFF_AUTOMEDIA && ei_local->interface_num) {
290 		ei_local->interface_num = 0;
291 
292 		if (dev->if_port == IF_PORT_10BASET)
293 			dev->if_port = IF_PORT_10BASE2;
294 		else
295 			dev->if_port = IF_PORT_10BASET;
296 
297 		etherh_setif(dev);
298 	}
299 }
300 
301 /*
302  * Write a block of data out to the 8390
303  */
304 static void
etherh_block_output(struct net_device * dev,int count,const unsigned char * buf,int start_page)305 etherh_block_output (struct net_device *dev, int count, const unsigned char *buf, int start_page)
306 {
307 	struct ei_device *ei_local = netdev_priv(dev);
308 	unsigned long dma_start;
309 	void __iomem *dma_base, *addr;
310 
311 	if (ei_local->dmaing) {
312 		netdev_err(dev, "DMAing conflict in etherh_block_input: "
313 			   " DMAstat %d irqlock %d\n",
314 			   ei_local->dmaing, ei_local->irqlock);
315 		return;
316 	}
317 
318 	/*
319 	 * Make sure we have a round number of bytes if we're in word mode.
320 	 */
321 	if (count & 1 && ei_local->word16)
322 		count++;
323 
324 	ei_local->dmaing = 1;
325 
326 	addr = (void __iomem *)dev->base_addr;
327 	dma_base = etherh_priv(dev)->dma_base;
328 
329 	count = (count + 1) & ~1;
330 	writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD);
331 
332 	writeb (0x42, addr + EN0_RCNTLO);
333 	writeb (0x00, addr + EN0_RCNTHI);
334 	writeb (0x42, addr + EN0_RSARLO);
335 	writeb (0x00, addr + EN0_RSARHI);
336 	writeb (E8390_RREAD | E8390_START, addr + E8390_CMD);
337 
338 	udelay (1);
339 
340 	writeb (ENISR_RDC, addr + EN0_ISR);
341 	writeb (count, addr + EN0_RCNTLO);
342 	writeb (count >> 8, addr + EN0_RCNTHI);
343 	writeb (0, addr + EN0_RSARLO);
344 	writeb (start_page, addr + EN0_RSARHI);
345 	writeb (E8390_RWRITE | E8390_START, addr + E8390_CMD);
346 
347 	if (ei_local->word16)
348 		writesw (dma_base, buf, count >> 1);
349 	else
350 		writesb (dma_base, buf, count);
351 
352 	dma_start = jiffies;
353 
354 	while ((readb (addr + EN0_ISR) & ENISR_RDC) == 0)
355 		if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */
356 			netdev_warn(dev, "timeout waiting for TX RDC\n");
357 			etherh_reset (dev);
358 			__NS8390_init (dev, 1);
359 			break;
360 		}
361 
362 	writeb (ENISR_RDC, addr + EN0_ISR);
363 	ei_local->dmaing = 0;
364 }
365 
366 /*
367  * Read a block of data from the 8390
368  */
369 static void
etherh_block_input(struct net_device * dev,int count,struct sk_buff * skb,int ring_offset)370 etherh_block_input (struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
371 {
372 	struct ei_device *ei_local = netdev_priv(dev);
373 	unsigned char *buf;
374 	void __iomem *dma_base, *addr;
375 
376 	if (ei_local->dmaing) {
377 		netdev_err(dev, "DMAing conflict in etherh_block_input: "
378 			   " DMAstat %d irqlock %d\n",
379 			   ei_local->dmaing, ei_local->irqlock);
380 		return;
381 	}
382 
383 	ei_local->dmaing = 1;
384 
385 	addr = (void __iomem *)dev->base_addr;
386 	dma_base = etherh_priv(dev)->dma_base;
387 
388 	buf = skb->data;
389 	writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD);
390 	writeb (count, addr + EN0_RCNTLO);
391 	writeb (count >> 8, addr + EN0_RCNTHI);
392 	writeb (ring_offset, addr + EN0_RSARLO);
393 	writeb (ring_offset >> 8, addr + EN0_RSARHI);
394 	writeb (E8390_RREAD | E8390_START, addr + E8390_CMD);
395 
396 	if (ei_local->word16) {
397 		readsw (dma_base, buf, count >> 1);
398 		if (count & 1)
399 			buf[count - 1] = readb (dma_base);
400 	} else
401 		readsb (dma_base, buf, count);
402 
403 	writeb (ENISR_RDC, addr + EN0_ISR);
404 	ei_local->dmaing = 0;
405 }
406 
407 /*
408  * Read a header from the 8390
409  */
410 static void
etherh_get_header(struct net_device * dev,struct e8390_pkt_hdr * hdr,int ring_page)411 etherh_get_header (struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
412 {
413 	struct ei_device *ei_local = netdev_priv(dev);
414 	void __iomem *dma_base, *addr;
415 
416 	if (ei_local->dmaing) {
417 		netdev_err(dev, "DMAing conflict in etherh_get_header: "
418 			   " DMAstat %d irqlock %d\n",
419 			   ei_local->dmaing, ei_local->irqlock);
420 		return;
421 	}
422 
423 	ei_local->dmaing = 1;
424 
425 	addr = (void __iomem *)dev->base_addr;
426 	dma_base = etherh_priv(dev)->dma_base;
427 
428 	writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD);
429 	writeb (sizeof (*hdr), addr + EN0_RCNTLO);
430 	writeb (0, addr + EN0_RCNTHI);
431 	writeb (0, addr + EN0_RSARLO);
432 	writeb (ring_page, addr + EN0_RSARHI);
433 	writeb (E8390_RREAD | E8390_START, addr + E8390_CMD);
434 
435 	if (ei_local->word16)
436 		readsw (dma_base, hdr, sizeof (*hdr) >> 1);
437 	else
438 		readsb (dma_base, hdr, sizeof (*hdr));
439 
440 	writeb (ENISR_RDC, addr + EN0_ISR);
441 	ei_local->dmaing = 0;
442 }
443 
444 /*
445  * Open/initialize the board.  This is called (in the current kernel)
446  * sometime after booting when the 'ifconfig' program is run.
447  *
448  * This routine should set everything up anew at each open, even
449  * registers that "should" only need to be set once at boot, so that
450  * there is non-reboot way to recover if something goes wrong.
451  */
452 static int
etherh_open(struct net_device * dev)453 etherh_open(struct net_device *dev)
454 {
455 	struct ei_device *ei_local = netdev_priv(dev);
456 
457 	if (request_irq(dev->irq, __ei_interrupt, 0, dev->name, dev))
458 		return -EAGAIN;
459 
460 	/*
461 	 * Make sure that we aren't going to change the
462 	 * media type on the next reset - we are about to
463 	 * do automedia manually now.
464 	 */
465 	ei_local->interface_num = 0;
466 
467 	/*
468 	 * If we are doing automedia detection, do it now.
469 	 * This is more reliable than the 8390's detection.
470 	 */
471 	if (dev->flags & IFF_AUTOMEDIA) {
472 		dev->if_port = IF_PORT_10BASET;
473 		etherh_setif(dev);
474 		mdelay(1);
475 		if (!etherh_getifstat(dev)) {
476 			dev->if_port = IF_PORT_10BASE2;
477 			etherh_setif(dev);
478 		}
479 	} else
480 		etherh_setif(dev);
481 
482 	etherh_reset(dev);
483 	__ei_open(dev);
484 
485 	return 0;
486 }
487 
488 /*
489  * The inverse routine to etherh_open().
490  */
491 static int
etherh_close(struct net_device * dev)492 etherh_close(struct net_device *dev)
493 {
494 	__ei_close (dev);
495 	free_irq (dev->irq, dev);
496 	return 0;
497 }
498 
499 /*
500  * Read the ethernet address string from the on board rom.
501  * This is an ascii string...
502  */
etherh_addr(char * addr,struct expansion_card * ec)503 static int etherh_addr(char *addr, struct expansion_card *ec)
504 {
505 	struct in_chunk_dir cd;
506 	char *s;
507 
508 	if (!ecard_readchunk(&cd, ec, 0xf5, 0)) {
509 		printk(KERN_ERR "%s: unable to read module description string\n",
510 		       dev_name(&ec->dev));
511 		goto no_addr;
512 	}
513 
514 	s = strchr(cd.d.string, '(');
515 	if (s) {
516 		int i;
517 
518 		for (i = 0; i < 6; i++) {
519 			addr[i] = simple_strtoul(s + 1, &s, 0x10);
520 			if (*s != (i == 5? ')' : ':'))
521 				break;
522 		}
523 
524 		if (i == 6)
525 			return 0;
526 	}
527 
528 	printk(KERN_ERR "%s: unable to parse MAC address: %s\n",
529 	       dev_name(&ec->dev), cd.d.string);
530 
531  no_addr:
532 	return -ENODEV;
533 }
534 
535 /*
536  * Create an ethernet address from the system serial number.
537  */
etherm_addr(char * addr)538 static int __init etherm_addr(char *addr)
539 {
540 	unsigned int serial;
541 
542 	if (system_serial_low == 0 && system_serial_high == 0)
543 		return -ENODEV;
544 
545 	serial = system_serial_low | system_serial_high;
546 
547 	addr[0] = 0;
548 	addr[1] = 0;
549 	addr[2] = 0xa4;
550 	addr[3] = 0x10 + (serial >> 24);
551 	addr[4] = serial >> 16;
552 	addr[5] = serial >> 8;
553 	return 0;
554 }
555 
etherh_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)556 static void etherh_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
557 {
558 	strscpy(info->driver, DRV_NAME, sizeof(info->driver));
559 	strscpy(info->version, DRV_VERSION, sizeof(info->version));
560 	strscpy(info->bus_info, dev_name(dev->dev.parent),
561 		sizeof(info->bus_info));
562 }
563 
etherh_get_link_ksettings(struct net_device * dev,struct ethtool_link_ksettings * cmd)564 static int etherh_get_link_ksettings(struct net_device *dev,
565 				     struct ethtool_link_ksettings *cmd)
566 {
567 	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
568 						etherh_priv(dev)->supported);
569 	cmd->base.speed = SPEED_10;
570 	cmd->base.duplex = DUPLEX_HALF;
571 	cmd->base.port = dev->if_port == IF_PORT_10BASET ? PORT_TP : PORT_BNC;
572 	cmd->base.autoneg = (dev->flags & IFF_AUTOMEDIA ? AUTONEG_ENABLE :
573 							  AUTONEG_DISABLE);
574 	return 0;
575 }
576 
etherh_set_link_ksettings(struct net_device * dev,const struct ethtool_link_ksettings * cmd)577 static int etherh_set_link_ksettings(struct net_device *dev,
578 				     const struct ethtool_link_ksettings *cmd)
579 {
580 	switch (cmd->base.autoneg) {
581 	case AUTONEG_ENABLE:
582 		dev->flags |= IFF_AUTOMEDIA;
583 		break;
584 
585 	case AUTONEG_DISABLE:
586 		switch (cmd->base.port) {
587 		case PORT_TP:
588 			dev->if_port = IF_PORT_10BASET;
589 			break;
590 
591 		case PORT_BNC:
592 			dev->if_port = IF_PORT_10BASE2;
593 			break;
594 
595 		default:
596 			return -EINVAL;
597 		}
598 		dev->flags &= ~IFF_AUTOMEDIA;
599 		break;
600 
601 	default:
602 		return -EINVAL;
603 	}
604 
605 	etherh_setif(dev);
606 
607 	return 0;
608 }
609 
etherh_get_msglevel(struct net_device * dev)610 static u32 etherh_get_msglevel(struct net_device *dev)
611 {
612 	struct ei_device *ei_local = netdev_priv(dev);
613 
614 	return ei_local->msg_enable;
615 }
616 
etherh_set_msglevel(struct net_device * dev,u32 v)617 static void etherh_set_msglevel(struct net_device *dev, u32 v)
618 {
619 	struct ei_device *ei_local = netdev_priv(dev);
620 
621 	ei_local->msg_enable = v;
622 }
623 
624 static const struct ethtool_ops etherh_ethtool_ops = {
625 	.get_drvinfo		= etherh_get_drvinfo,
626 	.get_ts_info		= ethtool_op_get_ts_info,
627 	.get_msglevel		= etherh_get_msglevel,
628 	.set_msglevel		= etherh_set_msglevel,
629 	.get_link_ksettings	= etherh_get_link_ksettings,
630 	.set_link_ksettings	= etherh_set_link_ksettings,
631 };
632 
633 static const struct net_device_ops etherh_netdev_ops = {
634 	.ndo_open		= etherh_open,
635 	.ndo_stop		= etherh_close,
636 	.ndo_set_config		= etherh_set_config,
637 	.ndo_start_xmit		= __ei_start_xmit,
638 	.ndo_tx_timeout		= __ei_tx_timeout,
639 	.ndo_get_stats		= __ei_get_stats,
640 	.ndo_set_rx_mode	= __ei_set_multicast_list,
641 	.ndo_validate_addr	= eth_validate_addr,
642 	.ndo_set_mac_address	= eth_mac_addr,
643 #ifdef CONFIG_NET_POLL_CONTROLLER
644 	.ndo_poll_controller	= __ei_poll,
645 #endif
646 };
647 
648 static u32 etherh_regoffsets[16];
649 static u32 etherm_regoffsets[16];
650 
651 static int
etherh_probe(struct expansion_card * ec,const struct ecard_id * id)652 etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
653 {
654 	const struct etherh_data *data = id->data;
655 	struct ei_device *ei_local;
656 	struct net_device *dev;
657 	struct etherh_priv *eh;
658 	u8 addr[ETH_ALEN];
659 	int ret;
660 
661 	ret = ecard_request_resources(ec);
662 	if (ret)
663 		goto out;
664 
665 	dev = ____alloc_ei_netdev(sizeof(struct etherh_priv));
666 	if (!dev) {
667 		ret = -ENOMEM;
668 		goto release;
669 	}
670 
671 	SET_NETDEV_DEV(dev, &ec->dev);
672 
673 	dev->netdev_ops		= &etherh_netdev_ops;
674 	dev->irq		= ec->irq;
675 	dev->ethtool_ops	= &etherh_ethtool_ops;
676 
677 	if (data->supported & SUPPORTED_Autoneg)
678 		dev->flags |= IFF_AUTOMEDIA;
679 	if (data->supported & SUPPORTED_TP) {
680 		dev->flags |= IFF_PORTSEL;
681 		dev->if_port = IF_PORT_10BASET;
682 	} else if (data->supported & SUPPORTED_BNC) {
683 		dev->flags |= IFF_PORTSEL;
684 		dev->if_port = IF_PORT_10BASE2;
685 	} else
686 		dev->if_port = IF_PORT_UNKNOWN;
687 
688 	eh = etherh_priv(dev);
689 	eh->supported		= data->supported;
690 	eh->ctrl		= 0;
691 	eh->id			= ec->cid.product;
692 	eh->memc		= ecardm_iomap(ec, ECARD_RES_MEMC, 0, PAGE_SIZE);
693 	if (!eh->memc) {
694 		ret = -ENOMEM;
695 		goto free;
696 	}
697 
698 	eh->ctrl_port = eh->memc;
699 	if (data->ctrl_ioc) {
700 		eh->ioc_fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, PAGE_SIZE);
701 		if (!eh->ioc_fast) {
702 			ret = -ENOMEM;
703 			goto free;
704 		}
705 		eh->ctrl_port = eh->ioc_fast;
706 	}
707 
708 	dev->base_addr = (unsigned long)eh->memc + data->ns8390_offset;
709 	eh->dma_base = eh->memc + data->dataport_offset;
710 	eh->ctrl_port += data->ctrlport_offset;
711 
712 	/*
713 	 * IRQ and control port handling - only for non-NIC slot cards.
714 	 */
715 	if (ec->slot_no != 8) {
716 		ecard_setirq(ec, &etherh_ops, eh);
717 	} else {
718 		/*
719 		 * If we're in the NIC slot, make sure the IRQ is enabled
720 		 */
721 		etherh_set_ctrl(eh, ETHERH_CP_IE);
722 	}
723 
724 	ei_local = netdev_priv(dev);
725 	spin_lock_init(&ei_local->page_lock);
726 
727 	if (ec->cid.product == PROD_ANT_ETHERM) {
728 		etherm_addr(addr);
729 		ei_local->reg_offset = etherm_regoffsets;
730 	} else {
731 		etherh_addr(addr, ec);
732 		ei_local->reg_offset = etherh_regoffsets;
733 	}
734 	eth_hw_addr_set(dev, addr);
735 
736 	ei_local->name          = dev->name;
737 	ei_local->word16        = 1;
738 	ei_local->tx_start_page = data->tx_start_page;
739 	ei_local->rx_start_page = ei_local->tx_start_page + TX_PAGES;
740 	ei_local->stop_page     = data->stop_page;
741 	ei_local->reset_8390    = etherh_reset;
742 	ei_local->block_input   = etherh_block_input;
743 	ei_local->block_output  = etherh_block_output;
744 	ei_local->get_8390_hdr  = etherh_get_header;
745 	ei_local->interface_num = 0;
746 
747 	etherh_reset(dev);
748 	__NS8390_init(dev, 0);
749 
750 	ret = register_netdev(dev);
751 	if (ret)
752 		goto free;
753 
754 	netdev_info(dev, "%s in slot %d, %pM\n",
755 		    data->name, ec->slot_no, dev->dev_addr);
756 
757 	ecard_set_drvdata(ec, dev);
758 
759 	return 0;
760 
761  free:
762 	free_netdev(dev);
763  release:
764 	ecard_release_resources(ec);
765  out:
766 	return ret;
767 }
768 
etherh_remove(struct expansion_card * ec)769 static void etherh_remove(struct expansion_card *ec)
770 {
771 	struct net_device *dev = ecard_get_drvdata(ec);
772 
773 	ecard_set_drvdata(ec, NULL);
774 
775 	unregister_netdev(dev);
776 
777 	free_netdev(dev);
778 
779 	ecard_release_resources(ec);
780 }
781 
782 static struct etherh_data etherm_data = {
783 	.ns8390_offset		= ETHERM_NS8390,
784 	.dataport_offset	= ETHERM_NS8390 + ETHERM_DATAPORT,
785 	.ctrlport_offset	= ETHERM_NS8390 + ETHERM_CTRLPORT,
786 	.name			= "ANT EtherM",
787 	.supported		= SUPPORTED_10baseT_Half,
788 	.tx_start_page		= ETHERM_TX_START_PAGE,
789 	.stop_page		= ETHERM_STOP_PAGE,
790 };
791 
792 static struct etherh_data etherlan500_data = {
793 	.ns8390_offset		= ETHERH500_NS8390,
794 	.dataport_offset	= ETHERH500_NS8390 + ETHERH500_DATAPORT,
795 	.ctrlport_offset	= ETHERH500_CTRLPORT,
796 	.ctrl_ioc		= 1,
797 	.name			= "i3 EtherH 500",
798 	.supported		= SUPPORTED_10baseT_Half,
799 	.tx_start_page		= ETHERH_TX_START_PAGE,
800 	.stop_page		= ETHERH_STOP_PAGE,
801 };
802 
803 static struct etherh_data etherlan600_data = {
804 	.ns8390_offset		= ETHERH600_NS8390,
805 	.dataport_offset	= ETHERH600_NS8390 + ETHERH600_DATAPORT,
806 	.ctrlport_offset	= ETHERH600_NS8390 + ETHERH600_CTRLPORT,
807 	.name			= "i3 EtherH 600",
808 	.supported		= SUPPORTED_10baseT_Half | SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_Autoneg,
809 	.tx_start_page		= ETHERH_TX_START_PAGE,
810 	.stop_page		= ETHERH_STOP_PAGE,
811 };
812 
813 static struct etherh_data etherlan600a_data = {
814 	.ns8390_offset		= ETHERH600_NS8390,
815 	.dataport_offset	= ETHERH600_NS8390 + ETHERH600_DATAPORT,
816 	.ctrlport_offset	= ETHERH600_NS8390 + ETHERH600_CTRLPORT,
817 	.name			= "i3 EtherH 600A",
818 	.supported		= SUPPORTED_10baseT_Half | SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_Autoneg,
819 	.tx_start_page		= ETHERH_TX_START_PAGE,
820 	.stop_page		= ETHERH_STOP_PAGE,
821 };
822 
823 static const struct ecard_id etherh_ids[] = {
824 	{ MANU_ANT, PROD_ANT_ETHERM,      &etherm_data       },
825 	{ MANU_I3,  PROD_I3_ETHERLAN500,  &etherlan500_data  },
826 	{ MANU_I3,  PROD_I3_ETHERLAN600,  &etherlan600_data  },
827 	{ MANU_I3,  PROD_I3_ETHERLAN600A, &etherlan600a_data },
828 	{ 0xffff,   0xffff }
829 };
830 
831 static struct ecard_driver etherh_driver = {
832 	.probe		= etherh_probe,
833 	.remove		= etherh_remove,
834 	.id_table	= etherh_ids,
835 	.drv = {
836 		.name	= DRV_NAME,
837 	},
838 };
839 
etherh_init(void)840 static int __init etherh_init(void)
841 {
842 	int i;
843 
844 	for (i = 0; i < 16; i++) {
845 		etherh_regoffsets[i] = i << 2;
846 		etherm_regoffsets[i] = i << 5;
847 	}
848 
849 	return ecard_register_driver(&etherh_driver);
850 }
851 
etherh_exit(void)852 static void __exit etherh_exit(void)
853 {
854 	ecard_remove_driver(&etherh_driver);
855 }
856 
857 module_init(etherh_init);
858 module_exit(etherh_exit);
859