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[PATCH] pcmcia: remove manf_id and card_id indirection
[linux-2.6/mini2440.git] / drivers / net / pcmcia / smc91c92_cs.c
blobae024bfc1ae46038209e753135192b528bf217fb
1 /*======================================================================
2
3 A PCMCIA ethernet driver for SMC91c92-based cards.
4
5 This driver supports Megahertz PCMCIA ethernet cards; and
6 Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
7 multifunction cards.
8
9 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
10
11 smc91c92_cs.c 1.122 2002/10/25 06:26:39
12
13 This driver contains code written by Donald Becker
14 (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au),
15 David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman
16 (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of
17 Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've
18 incorporated some parts of his driver here. I (Dave) wrote most
19 of the PCMCIA glue code, and the Ositech support code. Kelly
20 Stephens (kstephen@holli.com) added support for the Motorola
21 Mariner, with help from Allen Brost.
22
23 This software may be used and distributed according to the terms of
24 the GNU General Public License, incorporated herein by reference.
25
26 ======================================================================*/
27
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/init.h>
31 #include <linux/slab.h>
32 #include <linux/string.h>
33 #include <linux/timer.h>
34 #include <linux/interrupt.h>
35 #include <linux/delay.h>
36 #include <linux/crc32.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/skbuff.h>
40 #include <linux/if_arp.h>
41 #include <linux/ioport.h>
42 #include <linux/ethtool.h>
43 #include <linux/mii.h>
44 #include <linux/jiffies.h>
45
46 #include <pcmcia/cs_types.h>
47 #include <pcmcia/cs.h>
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ciscode.h>
51 #include <pcmcia/ds.h>
52 #include <pcmcia/ss.h>
53
54 #include <asm/io.h>
55 #include <asm/system.h>
56 #include <asm/uaccess.h>
57
58 /* Ositech Seven of Diamonds firmware */
59 #include "ositech.h"
60
61 /*====================================================================*/
62
63 static const char *if_names[] = { "auto", "10baseT", "10base2"};
64
65 /* Module parameters */
66
67 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
68 MODULE_LICENSE("GPL");
69
70 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
71
72 /*
73 Transceiver/media type.
74 0 = auto
75 1 = 10baseT (and autoselect if #define AUTOSELECT),
76 2 = AUI/10base2,
77 */
78 INT_MODULE_PARM(if_port, 0);
79
80 #ifdef PCMCIA_DEBUG
81 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
82 static const char *version =
83 "smc91c92_cs.c 1.123 2006/11/09 Donald Becker, becker@scyld.com.\n";
84 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
85 #else
86 #define DEBUG(n, args...)
87 #endif
88
89 #define DRV_NAME "smc91c92_cs"
90 #define DRV_VERSION "1.123"
91
92 /*====================================================================*/
93
94 /* Operational parameter that usually are not changed. */
95
96 /* Time in jiffies before concluding Tx hung */
97 #define TX_TIMEOUT ((400*HZ)/1000)
98
99 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
100 #define INTR_WORK 4
101
102 /* Times to check the check the chip before concluding that it doesn't
103 currently have room for another Tx packet. */
104 #define MEMORY_WAIT_TIME 8
105
106 struct smc_private {
107 struct pcmcia_device *p_dev;
108 spinlock_t lock;
109 u_short manfid;
110 u_short cardid;
111 struct net_device_stats stats;
112 dev_node_t node;
113 struct sk_buff *saved_skb;
114 int packets_waiting;
115 void __iomem *base;
116 u_short cfg;
117 struct timer_list media;
118 int watchdog, tx_err;
119 u_short media_status;
120 u_short fast_poll;
121 u_short link_status;
122 struct mii_if_info mii_if;
123 int duplex;
124 int rx_ovrn;
125 };
126
127 struct smc_cfg_mem {
128 tuple_t tuple;
129 cisparse_t parse;
130 u_char buf[255];
131 };
132
133 /* Special definitions for Megahertz multifunction cards */
134 #define MEGAHERTZ_ISR 0x0380
135
136 /* Special function registers for Motorola Mariner */
137 #define MOT_LAN 0x0000
138 #define MOT_UART 0x0020
139 #define MOT_EEPROM 0x20
140
141 #define MOT_NORMAL \
142 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
143
144 /* Special function registers for Ositech cards */
145 #define OSITECH_AUI_CTL 0x0c
146 #define OSITECH_PWRDOWN 0x0d
147 #define OSITECH_RESET 0x0e
148 #define OSITECH_ISR 0x0f
149 #define OSITECH_AUI_PWR 0x0c
150 #define OSITECH_RESET_ISR 0x0e
151
152 #define OSI_AUI_PWR 0x40
153 #define OSI_LAN_PWRDOWN 0x02
154 #define OSI_MODEM_PWRDOWN 0x01
155 #define OSI_LAN_RESET 0x02
156 #define OSI_MODEM_RESET 0x01
157
158 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
159 #define BANK_SELECT 14 /* Window select register. */
160 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
161
162 /* Bank 0 registers. */
163 #define TCR 0 /* transmit control register */
164 #define TCR_CLEAR 0 /* do NOTHING */
165 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
166 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
167 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
168 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
169 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
170
171 #define EPH 2 /* Ethernet Protocol Handler report. */
172 #define EPH_TX_SUC 0x0001
173 #define EPH_SNGLCOL 0x0002
174 #define EPH_MULCOL 0x0004
175 #define EPH_LTX_MULT 0x0008
176 #define EPH_16COL 0x0010
177 #define EPH_SQET 0x0020
178 #define EPH_LTX_BRD 0x0040
179 #define EPH_TX_DEFR 0x0080
180 #define EPH_LAT_COL 0x0200
181 #define EPH_LOST_CAR 0x0400
182 #define EPH_EXC_DEF 0x0800
183 #define EPH_CTR_ROL 0x1000
184 #define EPH_RX_OVRN 0x2000
185 #define EPH_LINK_OK 0x4000
186 #define EPH_TX_UNRN 0x8000
187 #define MEMINFO 8 /* Memory Information Register */
188 #define MEMCFG 10 /* Memory Configuration Register */
189
190 /* Bank 1 registers. */
191 #define CONFIG 0
192 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
193 #define CFG_NO_WAIT 0x1000
194 #define CFG_FULL_STEP 0x0400
195 #define CFG_SET_SQLCH 0x0200
196 #define CFG_AUI_SELECT 0x0100
197 #define CFG_16BIT 0x0080
198 #define CFG_DIS_LINK 0x0040
199 #define CFG_STATIC 0x0030
200 #define CFG_IRQ_SEL_1 0x0004
201 #define CFG_IRQ_SEL_0 0x0002
202 #define BASE_ADDR 2
203 #define ADDR0 4
204 #define GENERAL 10
205 #define CONTROL 12
206 #define CTL_STORE 0x0001
207 #define CTL_RELOAD 0x0002
208 #define CTL_EE_SELECT 0x0004
209 #define CTL_TE_ENABLE 0x0020
210 #define CTL_CR_ENABLE 0x0040
211 #define CTL_LE_ENABLE 0x0080
212 #define CTL_AUTO_RELEASE 0x0800
213 #define CTL_POWERDOWN 0x2000
214
215 /* Bank 2 registers. */
216 #define MMU_CMD 0
217 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
218 #define MC_RESET 0x40
219 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
220 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
221 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
222 #define PNR_ARR 2
223 #define FIFO_PORTS 4
224 #define FP_RXEMPTY 0x8000
225 #define POINTER 6
226 #define PTR_AUTO_INC 0x0040
227 #define PTR_READ 0x2000
228 #define PTR_AUTOINC 0x4000
229 #define PTR_RCV 0x8000
230 #define DATA_1 8
231 #define INTERRUPT 12
232 #define IM_RCV_INT 0x1
233 #define IM_TX_INT 0x2
234 #define IM_TX_EMPTY_INT 0x4
235 #define IM_ALLOC_INT 0x8
236 #define IM_RX_OVRN_INT 0x10
237 #define IM_EPH_INT 0x20
238
239 #define RCR 4
240 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
241 RxEnable = 0x0100, RxStripCRC = 0x0200};
242 #define RCR_SOFTRESET 0x8000 /* resets the chip */
243 #define RCR_STRIP_CRC 0x200 /* strips CRC */
244 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
245 #define RCR_ALMUL 0x4 /* receive all multicast packets */
246 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
247
248 /* the normal settings for the RCR register : */
249 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
250 #define RCR_CLEAR 0x0 /* set it to a base state */
251 #define COUNTER 6
252
253 /* BANK 3 -- not the same values as in smc9194! */
254 #define MULTICAST0 0
255 #define MULTICAST2 2
256 #define MULTICAST4 4
257 #define MULTICAST6 6
258 #define MGMT 8
259 #define REVISION 0x0a
260
261 /* Transmit status bits. */
262 #define TS_SUCCESS 0x0001
263 #define TS_16COL 0x0010
264 #define TS_LATCOL 0x0200
265 #define TS_LOSTCAR 0x0400
266
267 /* Receive status bits. */
268 #define RS_ALGNERR 0x8000
269 #define RS_BADCRC 0x2000
270 #define RS_ODDFRAME 0x1000
271 #define RS_TOOLONG 0x0800
272 #define RS_TOOSHORT 0x0400
273 #define RS_MULTICAST 0x0001
274 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
275
276 #define set_bits(v, p) outw(inw(p)|(v), (p))
277 #define mask_bits(v, p) outw(inw(p)&(v), (p))
278
279 /*====================================================================*/
280
281 static void smc91c92_detach(struct pcmcia_device *p_dev);
282 static int smc91c92_config(struct pcmcia_device *link);
283 static void smc91c92_release(struct pcmcia_device *link);
284
285 static int smc_open(struct net_device *dev);
286 static int smc_close(struct net_device *dev);
287 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
288 static void smc_tx_timeout(struct net_device *dev);
289 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev);
290 static irqreturn_t smc_interrupt(int irq, void *dev_id);
291 static void smc_rx(struct net_device *dev);
292 static struct net_device_stats *smc_get_stats(struct net_device *dev);
293 static void set_rx_mode(struct net_device *dev);
294 static int s9k_config(struct net_device *dev, struct ifmap *map);
295 static void smc_set_xcvr(struct net_device *dev, int if_port);
296 static void smc_reset(struct net_device *dev);
297 static void media_check(u_long arg);
298 static void mdio_sync(kio_addr_t addr);
299 static int mdio_read(struct net_device *dev, int phy_id, int loc);
300 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
301 static int smc_link_ok(struct net_device *dev);
302 static const struct ethtool_ops ethtool_ops;
303
304 /*======================================================================
305
306 smc91c92_attach() creates an "instance" of the driver, allocating
307 local data structures for one device. The device is registered
308 with Card Services.
309
310 ======================================================================*/
311
312 static int smc91c92_probe(struct pcmcia_device *link)
313 {
314 struct smc_private *smc;
315 struct net_device *dev;
316
317 DEBUG(0, "smc91c92_attach()\n");
318
319 /* Create new ethernet device */
320 dev = alloc_etherdev(sizeof(struct smc_private));
321 if (!dev)
322 return -ENOMEM;
323 smc = netdev_priv(dev);
324 smc->p_dev = link;
325 link->priv = dev;
326
327 spin_lock_init(&smc->lock);
328 link->io.NumPorts1 = 16;
329 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
330 link->io.IOAddrLines = 4;
331 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
332 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
333 link->irq.Handler = &smc_interrupt;
334 link->irq.Instance = dev;
335 link->conf.Attributes = CONF_ENABLE_IRQ;
336 link->conf.IntType = INT_MEMORY_AND_IO;
337
338 /* The SMC91c92-specific entries in the device structure. */
339 SET_MODULE_OWNER(dev);
340 dev->hard_start_xmit = &smc_start_xmit;
341 dev->get_stats = &smc_get_stats;
342 dev->set_config = &s9k_config;
343 dev->set_multicast_list = &set_rx_mode;
344 dev->open = &smc_open;
345 dev->stop = &smc_close;
346 dev->do_ioctl = &smc_ioctl;
347 SET_ETHTOOL_OPS(dev, &ethtool_ops);
348 #ifdef HAVE_TX_TIMEOUT
349 dev->tx_timeout = smc_tx_timeout;
350 dev->watchdog_timeo = TX_TIMEOUT;
351 #endif
352
353 smc->mii_if.dev = dev;
354 smc->mii_if.mdio_read = mdio_read;
355 smc->mii_if.mdio_write = mdio_write;
356 smc->mii_if.phy_id_mask = 0x1f;
357 smc->mii_if.reg_num_mask = 0x1f;
358
359 return smc91c92_config(link);
360 } /* smc91c92_attach */
361
362 /*======================================================================
363
364 This deletes a driver "instance". The device is de-registered
365 with Card Services. If it has been released, all local data
366 structures are freed. Otherwise, the structures will be freed
367 when the device is released.
368
369 ======================================================================*/
370
371 static void smc91c92_detach(struct pcmcia_device *link)
372 {
373 struct net_device *dev = link->priv;
374
375 DEBUG(0, "smc91c92_detach(0x%p)\n", link);
376
377 if (link->dev_node)
378 unregister_netdev(dev);
379
380 smc91c92_release(link);
381
382 free_netdev(dev);
383 } /* smc91c92_detach */
384
385 /*====================================================================*/
386
387 static int cvt_ascii_address(struct net_device *dev, char *s)
388 {
389 int i, j, da, c;
390
391 if (strlen(s) != 12)
392 return -1;
393 for (i = 0; i < 6; i++) {
394 da = 0;
395 for (j = 0; j < 2; j++) {
396 c = *s++;
397 da <<= 4;
398 da += ((c >= '0') && (c <= '9')) ?
399 (c - '0') : ((c & 0x0f) + 9);
400 }
401 dev->dev_addr[i] = da;
402 }
403 return 0;
404 }
405
406 /*====================================================================*/
407
408 static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple,
409 cisparse_t *parse)
410 {
411 int i;
412
413 if ((i = pcmcia_get_first_tuple(handle, tuple)) != CS_SUCCESS ||
414 (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
415 return i;
416 return pcmcia_parse_tuple(handle, tuple, parse);
417 }
418
419 static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple,
420 cisparse_t *parse)
421 {
422 int i;
423
424 if ((i = pcmcia_get_next_tuple(handle, tuple)) != CS_SUCCESS ||
425 (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
426 return i;
427 return pcmcia_parse_tuple(handle, tuple, parse);
428 }
429
430 /*======================================================================
431
432 Configuration stuff for Megahertz cards
433
434 mhz_3288_power() is used to power up a 3288's ethernet chip.
435 mhz_mfc_config() handles socket setup for multifunction (1144
436 and 3288) cards. mhz_setup() gets a card's hardware ethernet
437 address.
438
439 ======================================================================*/
440
441 static int mhz_3288_power(struct pcmcia_device *link)
442 {
443 struct net_device *dev = link->priv;
444 struct smc_private *smc = netdev_priv(dev);
445 u_char tmp;
446
447 /* Read the ISR twice... */
448 readb(smc->base+MEGAHERTZ_ISR);
449 udelay(5);
450 readb(smc->base+MEGAHERTZ_ISR);
451
452 /* Pause 200ms... */
453 mdelay(200);
454
455 /* Now read and write the COR... */
456 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
457 udelay(5);
458 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
459
460 return 0;
461 }
462
463 static int mhz_mfc_config(struct pcmcia_device *link)
464 {
465 struct net_device *dev = link->priv;
466 struct smc_private *smc = netdev_priv(dev);
467 struct smc_cfg_mem *cfg_mem;
468 tuple_t *tuple;
469 cisparse_t *parse;
470 cistpl_cftable_entry_t *cf;
471 u_char *buf;
472 win_req_t req;
473 memreq_t mem;
474 int i, k;
475
476 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
477 if (!cfg_mem)
478 return CS_OUT_OF_RESOURCE;
479
480 tuple = &cfg_mem->tuple;
481 parse = &cfg_mem->parse;
482 cf = &parse->cftable_entry;
483 buf = cfg_mem->buf;
484
485 link->conf.Attributes |= CONF_ENABLE_SPKR;
486 link->conf.Status = CCSR_AUDIO_ENA;
487 link->irq.Attributes =
488 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
489 link->io.IOAddrLines = 16;
490 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
491 link->io.NumPorts2 = 8;
492
493 tuple->Attributes = tuple->TupleOffset = 0;
494 tuple->TupleData = (cisdata_t *)buf;
495 tuple->TupleDataMax = 255;
496 tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
497
498 i = first_tuple(link, tuple, parse);
499 /* The Megahertz combo cards have modem-like CIS entries, so
500 we have to explicitly try a bunch of port combinations. */
501 while (i == CS_SUCCESS) {
502 link->conf.ConfigIndex = cf->index;
503 link->io.BasePort2 = cf->io.win[0].base;
504 for (k = 0; k < 0x400; k += 0x10) {
505 if (k & 0x80) continue;
506 link->io.BasePort1 = k ^ 0x300;
507 i = pcmcia_request_io(link, &link->io);
508 if (i == CS_SUCCESS) break;
509 }
510 if (i == CS_SUCCESS) break;
511 i = next_tuple(link, tuple, parse);
512 }
513 if (i != CS_SUCCESS)
514 goto free_cfg_mem;
515 dev->base_addr = link->io.BasePort1;
516
517 /* Allocate a memory window, for accessing the ISR */
518 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
519 req.Base = req.Size = 0;
520 req.AccessSpeed = 0;
521 i = pcmcia_request_window(&link, &req, &link->win);
522 if (i != CS_SUCCESS)
523 goto free_cfg_mem;
524 smc->base = ioremap(req.Base, req.Size);
525 mem.CardOffset = mem.Page = 0;
526 if (smc->manfid == MANFID_MOTOROLA)
527 mem.CardOffset = link->conf.ConfigBase;
528 i = pcmcia_map_mem_page(link->win, &mem);
529
530 if ((i == CS_SUCCESS)
531 && (smc->manfid == MANFID_MEGAHERTZ)
532 && (smc->cardid == PRODID_MEGAHERTZ_EM3288))
533 mhz_3288_power(link);
534
535 free_cfg_mem:
536 kfree(cfg_mem);
537 return i;
538 }
539
540 static int mhz_setup(struct pcmcia_device *link)
541 {
542 struct net_device *dev = link->priv;
543 struct smc_cfg_mem *cfg_mem;
544 tuple_t *tuple;
545 cisparse_t *parse;
546 u_char *buf, *station_addr;
547 int rc;
548
549 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
550 if (!cfg_mem)
551 return -1;
552
553 tuple = &cfg_mem->tuple;
554 parse = &cfg_mem->parse;
555 buf = cfg_mem->buf;
556
557 tuple->Attributes = tuple->TupleOffset = 0;
558 tuple->TupleData = (cisdata_t *)buf;
559 tuple->TupleDataMax = 255;
560
561 /* Read the station address from the CIS. It is stored as the last
562 (fourth) string in the Version 1 Version/ID tuple. */
563 tuple->DesiredTuple = CISTPL_VERS_1;
564 if (first_tuple(link, tuple, parse) != CS_SUCCESS) {
565 rc = -1;
566 goto free_cfg_mem;
567 }
568 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
569 if (next_tuple(link, tuple, parse) != CS_SUCCESS)
570 first_tuple(link, tuple, parse);
571 if (parse->version_1.ns > 3) {
572 station_addr = parse->version_1.str + parse->version_1.ofs[3];
573 if (cvt_ascii_address(dev, station_addr) == 0) {
574 rc = 0;
575 goto free_cfg_mem;
576 }
577 }
578
579 /* Another possibility: for the EM3288, in a special tuple */
580 tuple->DesiredTuple = 0x81;
581 if (pcmcia_get_first_tuple(link, tuple) != CS_SUCCESS) {
582 rc = -1;
583 goto free_cfg_mem;
584 }
585 if (pcmcia_get_tuple_data(link, tuple) != CS_SUCCESS) {
586 rc = -1;
587 goto free_cfg_mem;
588 }
589 buf[12] = '\0';
590 if (cvt_ascii_address(dev, buf) == 0) {
591 rc = 0;
592 goto free_cfg_mem;
593 }
594 rc = -1;
595 free_cfg_mem:
596 kfree(cfg_mem);
597 return rc;
598 }
599
600 /*======================================================================
601
602 Configuration stuff for the Motorola Mariner
603
604 mot_config() writes directly to the Mariner configuration
605 registers because the CIS is just bogus.
606
607 ======================================================================*/
608
609 static void mot_config(struct pcmcia_device *link)
610 {
611 struct net_device *dev = link->priv;
612 struct smc_private *smc = netdev_priv(dev);
613 kio_addr_t ioaddr = dev->base_addr;
614 kio_addr_t iouart = link->io.BasePort2;
615
616 /* Set UART base address and force map with COR bit 1 */
617 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
618 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
619 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
620
621 /* Set SMC base address and force map with COR bit 1 */
622 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
623 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
624 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
625
626 /* Wait for things to settle down */
627 mdelay(100);
628 }
629
630 static int mot_setup(struct pcmcia_device *link)
631 {
632 struct net_device *dev = link->priv;
633 kio_addr_t ioaddr = dev->base_addr;
634 int i, wait, loop;
635 u_int addr;
636
637 /* Read Ethernet address from Serial EEPROM */
638
639 for (i = 0; i < 3; i++) {
640 SMC_SELECT_BANK(2);
641 outw(MOT_EEPROM + i, ioaddr + POINTER);
642 SMC_SELECT_BANK(1);
643 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
644
645 for (loop = wait = 0; loop < 200; loop++) {
646 udelay(10);
647 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
648 if (wait == 0) break;
649 }
650
651 if (wait)
652 return -1;
653
654 addr = inw(ioaddr + GENERAL);
655 dev->dev_addr[2*i] = addr & 0xff;
656 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
657 }
658
659 return 0;
660 }
661
662 /*====================================================================*/
663
664 static int smc_config(struct pcmcia_device *link)
665 {
666 struct net_device *dev = link->priv;
667 struct smc_cfg_mem *cfg_mem;
668 tuple_t *tuple;
669 cisparse_t *parse;
670 cistpl_cftable_entry_t *cf;
671 u_char *buf;
672 int i;
673
674 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
675 if (!cfg_mem)
676 return CS_OUT_OF_RESOURCE;
677
678 tuple = &cfg_mem->tuple;
679 parse = &cfg_mem->parse;
680 cf = &parse->cftable_entry;
681 buf = cfg_mem->buf;
682
683 tuple->Attributes = tuple->TupleOffset = 0;
684 tuple->TupleData = (cisdata_t *)buf;
685 tuple->TupleDataMax = 255;
686 tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
687
688 link->io.NumPorts1 = 16;
689 i = first_tuple(link, tuple, parse);
690 while (i != CS_NO_MORE_ITEMS) {
691 if (i == CS_SUCCESS) {
692 link->conf.ConfigIndex = cf->index;
693 link->io.BasePort1 = cf->io.win[0].base;
694 link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
695 i = pcmcia_request_io(link, &link->io);
696 if (i == CS_SUCCESS) break;
697 }
698 i = next_tuple(link, tuple, parse);
699 }
700 if (i == CS_SUCCESS)
701 dev->base_addr = link->io.BasePort1;
702
703 kfree(cfg_mem);
704 return i;
705 }
706
707 static int smc_setup(struct pcmcia_device *link)
708 {
709 struct net_device *dev = link->priv;
710 struct smc_cfg_mem *cfg_mem;
711 tuple_t *tuple;
712 cisparse_t *parse;
713 cistpl_lan_node_id_t *node_id;
714 u_char *buf, *station_addr;
715 int i, rc;
716
717 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
718 if (!cfg_mem)
719 return CS_OUT_OF_RESOURCE;
720
721 tuple = &cfg_mem->tuple;
722 parse = &cfg_mem->parse;
723 buf = cfg_mem->buf;
724
725 tuple->Attributes = tuple->TupleOffset = 0;
726 tuple->TupleData = (cisdata_t *)buf;
727 tuple->TupleDataMax = 255;
728
729 /* Check for a LAN function extension tuple */
730 tuple->DesiredTuple = CISTPL_FUNCE;
731 i = first_tuple(link, tuple, parse);
732 while (i == CS_SUCCESS) {
733 if (parse->funce.type == CISTPL_FUNCE_LAN_NODE_ID)
734 break;
735 i = next_tuple(link, tuple, parse);
736 }
737 if (i == CS_SUCCESS) {
738 node_id = (cistpl_lan_node_id_t *)parse->funce.data;
739 if (node_id->nb == 6) {
740 for (i = 0; i < 6; i++)
741 dev->dev_addr[i] = node_id->id[i];
742 rc = 0;
743 goto free_cfg_mem;
744 }
745 }
746 /* Try the third string in the Version 1 Version/ID tuple. */
747 tuple->DesiredTuple = CISTPL_VERS_1;
748 if (first_tuple(link, tuple, parse) != CS_SUCCESS) {
749 rc = -1;
750 goto free_cfg_mem;
751 }
752 station_addr = parse->version_1.str + parse->version_1.ofs[2];
753 if (cvt_ascii_address(dev, station_addr) == 0) {
754 rc = 0;
755 goto free_cfg_mem;
756 }
757
758 rc = -1;
759 free_cfg_mem:
760 kfree(cfg_mem);
761 return rc;
762 }
763
764 /*====================================================================*/
765
766 static int osi_config(struct pcmcia_device *link)
767 {
768 struct net_device *dev = link->priv;
769 static const kio_addr_t com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
770 int i, j;
771
772 link->conf.Attributes |= CONF_ENABLE_SPKR;
773 link->conf.Status = CCSR_AUDIO_ENA;
774 link->irq.Attributes =
775 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
776 link->io.NumPorts1 = 64;
777 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
778 link->io.NumPorts2 = 8;
779 link->io.IOAddrLines = 16;
780
781 /* Enable Hard Decode, LAN, Modem */
782 link->conf.ConfigIndex = 0x23;
783
784 for (i = j = 0; j < 4; j++) {
785 link->io.BasePort2 = com[j];
786 i = pcmcia_request_io(link, &link->io);
787 if (i == CS_SUCCESS) break;
788 }
789 if (i != CS_SUCCESS) {
790 /* Fallback: turn off hard decode */
791 link->conf.ConfigIndex = 0x03;
792 link->io.NumPorts2 = 0;
793 i = pcmcia_request_io(link, &link->io);
794 }
795 dev->base_addr = link->io.BasePort1 + 0x10;
796 return i;
797 }
798
799 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
800 {
801 struct net_device *dev = link->priv;
802 struct smc_cfg_mem *cfg_mem;
803 tuple_t *tuple;
804 u_char *buf;
805 int i, rc;
806
807 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
808 if (!cfg_mem)
809 return -1;
810
811 tuple = &cfg_mem->tuple;
812 buf = cfg_mem->buf;
813
814 tuple->Attributes = TUPLE_RETURN_COMMON;
815 tuple->TupleData = (cisdata_t *)buf;
816 tuple->TupleDataMax = 255;
817 tuple->TupleOffset = 0;
818
819 /* Read the station address from tuple 0x90, subtuple 0x04 */
820 tuple->DesiredTuple = 0x90;
821 i = pcmcia_get_first_tuple(link, tuple);
822 while (i == CS_SUCCESS) {
823 i = pcmcia_get_tuple_data(link, tuple);
824 if ((i != CS_SUCCESS) || (buf[0] == 0x04))
825 break;
826 i = pcmcia_get_next_tuple(link, tuple);
827 }
828 if (i != CS_SUCCESS) {
829 rc = -1;
830 goto free_cfg_mem;
831 }
832 for (i = 0; i < 6; i++)
833 dev->dev_addr[i] = buf[i+2];
834
835 if (((manfid == MANFID_OSITECH) &&
836 (cardid == PRODID_OSITECH_SEVEN)) ||
837 ((manfid == MANFID_PSION) &&
838 (cardid == PRODID_PSION_NET100))) {
839 /* Download the Seven of Diamonds firmware */
840 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
841 outb(__Xilinx7OD[i], link->io.BasePort1+2);
842 udelay(50);
843 }
844 } else if (manfid == MANFID_OSITECH) {
845 /* Make sure both functions are powered up */
846 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
847 /* Now, turn on the interrupt for both card functions */
848 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
849 DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
850 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
851 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
852 }
853 rc = 0;
854 free_cfg_mem:
855 kfree(cfg_mem);
856 return rc;
857 }
858
859 static int smc91c92_suspend(struct pcmcia_device *link)
860 {
861 struct net_device *dev = link->priv;
862
863 if (link->open)
864 netif_device_detach(dev);
865
866 return 0;
867 }
868
869 static int smc91c92_resume(struct pcmcia_device *link)
870 {
871 struct net_device *dev = link->priv;
872 struct smc_private *smc = netdev_priv(dev);
873 int i;
874
875 if ((smc->manfid == MANFID_MEGAHERTZ) &&
876 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
877 mhz_3288_power(link);
878 if (smc->manfid == MANFID_MOTOROLA)
879 mot_config(link);
880 if ((smc->manfid == MANFID_OSITECH) &&
881 (smc->cardid != PRODID_OSITECH_SEVEN)) {
882 /* Power up the card and enable interrupts */
883 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
884 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
885 }
886 if (((smc->manfid == MANFID_OSITECH) &&
887 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
888 ((smc->manfid == MANFID_PSION) &&
889 (smc->cardid == PRODID_PSION_NET100))) {
890 /* Download the Seven of Diamonds firmware */
891 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
892 outb(__Xilinx7OD[i], link->io.BasePort1+2);
893 udelay(50);
894 }
895 }
896 if (link->open) {
897 smc_reset(dev);
898 netif_device_attach(dev);
899 }
900
901 return 0;
902 }
903
904
905 /*======================================================================
906
907 This verifies that the chip is some SMC91cXX variant, and returns
908 the revision code if successful. Otherwise, it returns -ENODEV.
909
910 ======================================================================*/
911
912 static int check_sig(struct pcmcia_device *link)
913 {
914 struct net_device *dev = link->priv;
915 kio_addr_t ioaddr = dev->base_addr;
916 int width;
917 u_short s;
918
919 SMC_SELECT_BANK(1);
920 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
921 /* Try powering up the chip */
922 outw(0, ioaddr + CONTROL);
923 mdelay(55);
924 }
925
926 /* Try setting bus width */
927 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
928 s = inb(ioaddr + CONFIG);
929 if (width)
930 s |= CFG_16BIT;
931 else
932 s &= ~CFG_16BIT;
933 outb(s, ioaddr + CONFIG);
934
935 /* Check Base Address Register to make sure bus width is OK */
936 s = inw(ioaddr + BASE_ADDR);
937 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
938 ((s >> 8) != (s & 0xff))) {
939 SMC_SELECT_BANK(3);
940 s = inw(ioaddr + REVISION);
941 return (s & 0xff);
942 }
943
944 if (width) {
945 modconf_t mod = {
946 .Attributes = CONF_IO_CHANGE_WIDTH,
947 };
948 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
949
950 smc91c92_suspend(link);
951 pcmcia_modify_configuration(link, &mod);
952 smc91c92_resume(link);
953 return check_sig(link);
954 }
955 return -ENODEV;
956 }
957
958 /*======================================================================
959
960 smc91c92_config() is scheduled to run after a CARD_INSERTION event
961 is received, to configure the PCMCIA socket, and to make the
962 ethernet device available to the system.
963
964 ======================================================================*/
965
966 #define CS_EXIT_TEST(ret, svc, label) \
967 if (ret != CS_SUCCESS) { cs_error(link, svc, ret); goto label; }
968
969 static int smc91c92_config(struct pcmcia_device *link)
970 {
971 struct net_device *dev = link->priv;
972 struct smc_private *smc = netdev_priv(dev);
973 struct smc_cfg_mem *cfg_mem;
974 tuple_t *tuple;
975 cisparse_t *parse;
976 u_char *buf;
977 char *name;
978 int i, j, rev;
979 kio_addr_t ioaddr;
980 u_long mir;
981
982 DEBUG(0, "smc91c92_config(0x%p)\n", link);
983
984 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
985 if (!cfg_mem)
986 goto config_failed;
987
988 tuple = &cfg_mem->tuple;
989 parse = &cfg_mem->parse;
990 buf = cfg_mem->buf;
991
992 tuple->Attributes = tuple->TupleOffset = 0;
993 tuple->TupleData = (cisdata_t *)buf;
994 tuple->TupleDataMax = 64;
995
996 tuple->DesiredTuple = CISTPL_CONFIG;
997 i = first_tuple(link, tuple, parse);
998 CS_EXIT_TEST(i, ParseTuple, config_failed);
999 link->conf.ConfigBase = parse->config.base;
1000 link->conf.Present = parse->config.rmask[0];
1001
1002 smc->manfid = link->manf_id;
1003 smc->cardid = link->card_id;
1004
1005 if ((smc->manfid == MANFID_OSITECH) &&
1006 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1007 i = osi_config(link);
1008 } else if ((smc->manfid == MANFID_MOTOROLA) ||
1009 ((smc->manfid == MANFID_MEGAHERTZ) &&
1010 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
1011 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
1012 i = mhz_mfc_config(link);
1013 } else {
1014 i = smc_config(link);
1015 }
1016 CS_EXIT_TEST(i, RequestIO, config_failed);
1017
1018 i = pcmcia_request_irq(link, &link->irq);
1019 CS_EXIT_TEST(i, RequestIRQ, config_failed);
1020 i = pcmcia_request_configuration(link, &link->conf);
1021 CS_EXIT_TEST(i, RequestConfiguration, config_failed);
1022
1023 if (smc->manfid == MANFID_MOTOROLA)
1024 mot_config(link);
1025
1026 dev->irq = link->irq.AssignedIRQ;
1027
1028 if ((if_port >= 0) && (if_port <= 2))
1029 dev->if_port = if_port;
1030 else
1031 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
1032
1033 switch (smc->manfid) {
1034 case MANFID_OSITECH:
1035 case MANFID_PSION:
1036 i = osi_setup(link, smc->manfid, smc->cardid); break;
1037 case MANFID_SMC:
1038 case MANFID_NEW_MEDIA:
1039 i = smc_setup(link); break;
1040 case 0x128: /* For broken Megahertz cards */
1041 case MANFID_MEGAHERTZ:
1042 i = mhz_setup(link); break;
1043 case MANFID_MOTOROLA:
1044 default: /* get the hw address from EEPROM */
1045 i = mot_setup(link); break;
1046 }
1047
1048 if (i != 0) {
1049 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
1050 goto config_undo;
1051 }
1052
1053 smc->duplex = 0;
1054 smc->rx_ovrn = 0;
1055
1056 rev = check_sig(link);
1057 name = "???";
1058 if (rev > 0)
1059 switch (rev >> 4) {
1060 case 3: name = "92"; break;
1061 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
1062 case 5: name = "95"; break;
1063 case 7: name = "100"; break;
1064 case 8: name = "100-FD"; break;
1065 case 9: name = "110"; break;
1066 }
1067
1068 ioaddr = dev->base_addr;
1069 if (rev > 0) {
1070 u_long mcr;
1071 SMC_SELECT_BANK(0);
1072 mir = inw(ioaddr + MEMINFO) & 0xff;
1073 if (mir == 0xff) mir++;
1074 /* Get scale factor for memory size */
1075 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
1076 mir *= 128 * (1<<((mcr >> 9) & 7));
1077 SMC_SELECT_BANK(1);
1078 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
1079 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
1080 if (smc->manfid == MANFID_OSITECH)
1081 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
1082 if ((rev >> 4) >= 7)
1083 smc->cfg |= CFG_MII_SELECT;
1084 } else
1085 mir = 0;
1086
1087 if (smc->cfg & CFG_MII_SELECT) {
1088 SMC_SELECT_BANK(3);
1089
1090 for (i = 0; i < 32; i++) {
1091 j = mdio_read(dev, i, 1);
1092 if ((j != 0) && (j != 0xffff)) break;
1093 }
1094 smc->mii_if.phy_id = (i < 32) ? i : -1;
1095
1096 SMC_SELECT_BANK(0);
1097 }
1098
1099 link->dev_node = &smc->node;
1100 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1101
1102 if (register_netdev(dev) != 0) {
1103 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
1104 link->dev_node = NULL;
1105 goto config_undo;
1106 }
1107
1108 strcpy(smc->node.dev_name, dev->name);
1109
1110 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
1111 "hw_addr ", dev->name, name, (rev & 0x0f), dev->base_addr,
1112 dev->irq);
1113 for (i = 0; i < 6; i++)
1114 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
1115
1116 if (rev > 0) {
1117 if (mir & 0x3ff)
1118 printk(KERN_INFO " %lu byte", mir);
1119 else
1120 printk(KERN_INFO " %lu kb", mir>>10);
1121 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
1122 "MII" : if_names[dev->if_port]);
1123 }
1124
1125 if (smc->cfg & CFG_MII_SELECT) {
1126 if (smc->mii_if.phy_id != -1) {
1127 DEBUG(0, " MII transceiver at index %d, status %x.\n",
1128 smc->mii_if.phy_id, j);
1129 } else {
1130 printk(KERN_NOTICE " No MII transceivers found!\n");
1131 }
1132 }
1133 kfree(cfg_mem);
1134 return 0;
1135
1136 config_undo:
1137 unregister_netdev(dev);
1138 config_failed: /* CS_EXIT_TEST() calls jump to here... */
1139 smc91c92_release(link);
1140 kfree(cfg_mem);
1141 return -ENODEV;
1142 } /* smc91c92_config */
1143
1144 /*======================================================================
1145
1146 After a card is removed, smc91c92_release() will unregister the net
1147 device, and release the PCMCIA configuration. If the device is
1148 still open, this will be postponed until it is closed.
1149
1150 ======================================================================*/
1151
1152 static void smc91c92_release(struct pcmcia_device *link)
1153 {
1154 DEBUG(0, "smc91c92_release(0x%p)\n", link);
1155 if (link->win) {
1156 struct net_device *dev = link->priv;
1157 struct smc_private *smc = netdev_priv(dev);
1158 iounmap(smc->base);
1159 }
1160 pcmcia_disable_device(link);
1161 }
1162
1163 /*======================================================================
1164
1165 MII interface support for SMC91cXX based cards
1166 ======================================================================*/
1167
1168 #define MDIO_SHIFT_CLK 0x04
1169 #define MDIO_DATA_OUT 0x01
1170 #define MDIO_DIR_WRITE 0x08
1171 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1172 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1173 #define MDIO_DATA_READ 0x02
1174
1175 static void mdio_sync(kio_addr_t addr)
1176 {
1177 int bits;
1178 for (bits = 0; bits < 32; bits++) {
1179 outb(MDIO_DATA_WRITE1, addr);
1180 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1181 }
1182 }
1183
1184 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1185 {
1186 kio_addr_t addr = dev->base_addr + MGMT;
1187 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1188 int i, retval = 0;
1189
1190 mdio_sync(addr);
1191 for (i = 13; i >= 0; i--) {
1192 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1193 outb(dat, addr);
1194 outb(dat | MDIO_SHIFT_CLK, addr);
1195 }
1196 for (i = 19; i > 0; i--) {
1197 outb(0, addr);
1198 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1199 outb(MDIO_SHIFT_CLK, addr);
1200 }
1201 return (retval>>1) & 0xffff;
1202 }
1203
1204 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1205 {
1206 kio_addr_t addr = dev->base_addr + MGMT;
1207 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1208 int i;
1209
1210 mdio_sync(addr);
1211 for (i = 31; i >= 0; i--) {
1212 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1213 outb(dat, addr);
1214 outb(dat | MDIO_SHIFT_CLK, addr);
1215 }
1216 for (i = 1; i >= 0; i--) {
1217 outb(0, addr);
1218 outb(MDIO_SHIFT_CLK, addr);
1219 }
1220 }
1221
1222 /*======================================================================
1223
1224 The driver core code, most of which should be common with a
1225 non-PCMCIA implementation.
1226
1227 ======================================================================*/
1228
1229 #ifdef PCMCIA_DEBUG
1230 static void smc_dump(struct net_device *dev)
1231 {
1232 kio_addr_t ioaddr = dev->base_addr;
1233 u_short i, w, save;
1234 save = inw(ioaddr + BANK_SELECT);
1235 for (w = 0; w < 4; w++) {
1236 SMC_SELECT_BANK(w);
1237 printk(KERN_DEBUG "bank %d: ", w);
1238 for (i = 0; i < 14; i += 2)
1239 printk(" %04x", inw(ioaddr + i));
1240 printk("\n");
1241 }
1242 outw(save, ioaddr + BANK_SELECT);
1243 }
1244 #endif
1245
1246 static int smc_open(struct net_device *dev)
1247 {
1248 struct smc_private *smc = netdev_priv(dev);
1249 struct pcmcia_device *link = smc->p_dev;
1250
1251 #ifdef PCMCIA_DEBUG
1252 DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
1253 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1254 if (pc_debug > 1) smc_dump(dev);
1255 #endif
1256
1257 /* Check that the PCMCIA card is still here. */
1258 if (!pcmcia_dev_present(link))
1259 return -ENODEV;
1260 /* Physical device present signature. */
1261 if (check_sig(link) < 0) {
1262 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1263 return -ENODEV;
1264 }
1265 link->open++;
1266
1267 netif_start_queue(dev);
1268 smc->saved_skb = NULL;
1269 smc->packets_waiting = 0;
1270
1271 smc_reset(dev);
1272 init_timer(&smc->media);
1273 smc->media.function = &media_check;
1274 smc->media.data = (u_long) dev;
1275 smc->media.expires = jiffies + HZ;
1276 add_timer(&smc->media);
1277
1278 return 0;
1279 } /* smc_open */
1280
1281 /*====================================================================*/
1282
1283 static int smc_close(struct net_device *dev)
1284 {
1285 struct smc_private *smc = netdev_priv(dev);
1286 struct pcmcia_device *link = smc->p_dev;
1287 kio_addr_t ioaddr = dev->base_addr;
1288
1289 DEBUG(0, "%s: smc_close(), status %4.4x.\n",
1290 dev->name, inw(ioaddr + BANK_SELECT));
1291
1292 netif_stop_queue(dev);
1293
1294 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1295 Don't bother to check for chip present. */
1296 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1297 outw(0, ioaddr + INTERRUPT);
1298 SMC_SELECT_BANK(0);
1299 mask_bits(0xff00, ioaddr + RCR);
1300 mask_bits(0xff00, ioaddr + TCR);
1301
1302 /* Put the chip into power-down mode. */
1303 SMC_SELECT_BANK(1);
1304 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1305
1306 link->open--;
1307 del_timer_sync(&smc->media);
1308
1309 return 0;
1310 } /* smc_close */
1311
1312 /*======================================================================
1313
1314 Transfer a packet to the hardware and trigger the packet send.
1315 This may be called at either from either the Tx queue code
1316 or the interrupt handler.
1317
1318 ======================================================================*/
1319
1320 static void smc_hardware_send_packet(struct net_device * dev)
1321 {
1322 struct smc_private *smc = netdev_priv(dev);
1323 struct sk_buff *skb = smc->saved_skb;
1324 kio_addr_t ioaddr = dev->base_addr;
1325 u_char packet_no;
1326
1327 if (!skb) {
1328 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1329 return;
1330 }
1331
1332 /* There should be a packet slot waiting. */
1333 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1334 if (packet_no & 0x80) {
1335 /* If not, there is a hardware problem! Likely an ejected card. */
1336 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1337 " failed, status %#2.2x.\n", dev->name, packet_no);
1338 dev_kfree_skb_irq(skb);
1339 smc->saved_skb = NULL;
1340 netif_start_queue(dev);
1341 return;
1342 }
1343
1344 smc->stats.tx_bytes += skb->len;
1345 /* The card should use the just-allocated buffer. */
1346 outw(packet_no, ioaddr + PNR_ARR);
1347 /* point to the beginning of the packet */
1348 outw(PTR_AUTOINC , ioaddr + POINTER);
1349
1350 /* Send the packet length (+6 for status, length and ctl byte)
1351 and the status word (set to zeros). */
1352 {
1353 u_char *buf = skb->data;
1354 u_int length = skb->len; /* The chip will pad to ethernet min. */
1355
1356 DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
1357 dev->name, length);
1358
1359 /* send the packet length: +6 for status word, length, and ctl */
1360 outw(0, ioaddr + DATA_1);
1361 outw(length + 6, ioaddr + DATA_1);
1362 outsw(ioaddr + DATA_1, buf, length >> 1);
1363
1364 /* The odd last byte, if there is one, goes in the control word. */
1365 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1366 }
1367
1368 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1369 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1370 (inw(ioaddr + INTERRUPT) & 0xff00),
1371 ioaddr + INTERRUPT);
1372
1373 /* The chip does the rest of the work. */
1374 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1375
1376 smc->saved_skb = NULL;
1377 dev_kfree_skb_irq(skb);
1378 dev->trans_start = jiffies;
1379 netif_start_queue(dev);
1380 return;
1381 }
1382
1383 /*====================================================================*/
1384
1385 static void smc_tx_timeout(struct net_device *dev)
1386 {
1387 struct smc_private *smc = netdev_priv(dev);
1388 kio_addr_t ioaddr = dev->base_addr;
1389
1390 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1391 "Tx_status %2.2x status %4.4x.\n",
1392 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1393 smc->stats.tx_errors++;
1394 smc_reset(dev);
1395 dev->trans_start = jiffies;
1396 smc->saved_skb = NULL;
1397 netif_wake_queue(dev);
1398 }
1399
1400 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
1401 {
1402 struct smc_private *smc = netdev_priv(dev);
1403 kio_addr_t ioaddr = dev->base_addr;
1404 u_short num_pages;
1405 short time_out, ir;
1406
1407 netif_stop_queue(dev);
1408
1409 DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
1410 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1411
1412 if (smc->saved_skb) {
1413 /* THIS SHOULD NEVER HAPPEN. */
1414 smc->stats.tx_aborted_errors++;
1415 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1416 dev->name);
1417 return 1;
1418 }
1419 smc->saved_skb = skb;
1420
1421 num_pages = skb->len >> 8;
1422
1423 if (num_pages > 7) {
1424 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1425 dev_kfree_skb (skb);
1426 smc->saved_skb = NULL;
1427 smc->stats.tx_dropped++;
1428 return 0; /* Do not re-queue this packet. */
1429 }
1430 /* A packet is now waiting. */
1431 smc->packets_waiting++;
1432
1433 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1434
1435 /* need MC_RESET to keep the memory consistent. errata? */
1436 if (smc->rx_ovrn) {
1437 outw(MC_RESET, ioaddr + MMU_CMD);
1438 smc->rx_ovrn = 0;
1439 }
1440
1441 /* Allocate the memory; send the packet now if we win. */
1442 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1443 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1444 ir = inw(ioaddr+INTERRUPT);
1445 if (ir & IM_ALLOC_INT) {
1446 /* Acknowledge the interrupt, send the packet. */
1447 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1448 smc_hardware_send_packet(dev); /* Send the packet now.. */
1449 return 0;
1450 }
1451 }
1452
1453 /* Otherwise defer until the Tx-space-allocated interrupt. */
1454 DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
1455 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1456
1457 return 0;
1458 }
1459
1460 /*======================================================================
1461
1462 Handle a Tx anomolous event. Entered while in Window 2.
1463
1464 ======================================================================*/
1465
1466 static void smc_tx_err(struct net_device * dev)
1467 {
1468 struct smc_private *smc = netdev_priv(dev);
1469 kio_addr_t ioaddr = dev->base_addr;
1470 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1471 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1472 int tx_status;
1473
1474 /* select this as the packet to read from */
1475 outw(packet_no, ioaddr + PNR_ARR);
1476
1477 /* read the first word from this packet */
1478 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1479
1480 tx_status = inw(ioaddr + DATA_1);
1481
1482 smc->stats.tx_errors++;
1483 if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
1484 if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
1485 if (tx_status & TS_16COL) {
1486 smc->stats.tx_aborted_errors++;
1487 smc->tx_err++;
1488 }
1489
1490 if (tx_status & TS_SUCCESS) {
1491 printk(KERN_NOTICE "%s: Successful packet caused error "
1492 "interrupt?\n", dev->name);
1493 }
1494 /* re-enable transmit */
1495 SMC_SELECT_BANK(0);
1496 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1497 SMC_SELECT_BANK(2);
1498
1499 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1500
1501 /* one less packet waiting for me */
1502 smc->packets_waiting--;
1503
1504 outw(saved_packet, ioaddr + PNR_ARR);
1505 return;
1506 }
1507
1508 /*====================================================================*/
1509
1510 static void smc_eph_irq(struct net_device *dev)
1511 {
1512 struct smc_private *smc = netdev_priv(dev);
1513 kio_addr_t ioaddr = dev->base_addr;
1514 u_short card_stats, ephs;
1515
1516 SMC_SELECT_BANK(0);
1517 ephs = inw(ioaddr + EPH);
1518 DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
1519 " %4.4x.\n", dev->name, ephs);
1520 /* Could be a counter roll-over warning: update stats. */
1521 card_stats = inw(ioaddr + COUNTER);
1522 /* single collisions */
1523 smc->stats.collisions += card_stats & 0xF;
1524 card_stats >>= 4;
1525 /* multiple collisions */
1526 smc->stats.collisions += card_stats & 0xF;
1527 #if 0 /* These are for when linux supports these statistics */
1528 card_stats >>= 4; /* deferred */
1529 card_stats >>= 4; /* excess deferred */
1530 #endif
1531 /* If we had a transmit error we must re-enable the transmitter. */
1532 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1533
1534 /* Clear a link error interrupt. */
1535 SMC_SELECT_BANK(1);
1536 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1537 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1538 ioaddr + CONTROL);
1539 SMC_SELECT_BANK(2);
1540 }
1541
1542 /*====================================================================*/
1543
1544 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1545 {
1546 struct net_device *dev = dev_id;
1547 struct smc_private *smc = netdev_priv(dev);
1548 kio_addr_t ioaddr;
1549 u_short saved_bank, saved_pointer, mask, status;
1550 unsigned int handled = 1;
1551 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1552
1553 if (!netif_device_present(dev))
1554 return IRQ_NONE;
1555
1556 ioaddr = dev->base_addr;
1557
1558 DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1559 irq, ioaddr);
1560
1561 smc->watchdog = 0;
1562 saved_bank = inw(ioaddr + BANK_SELECT);
1563 if ((saved_bank & 0xff00) != 0x3300) {
1564 /* The device does not exist -- the card could be off-line, or
1565 maybe it has been ejected. */
1566 DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
1567 "/ejected device.\n", dev->name, irq);
1568 handled = 0;
1569 goto irq_done;
1570 }
1571
1572 SMC_SELECT_BANK(2);
1573 saved_pointer = inw(ioaddr + POINTER);
1574 mask = inw(ioaddr + INTERRUPT) >> 8;
1575 /* clear all interrupts */
1576 outw(0, ioaddr + INTERRUPT);
1577
1578 do { /* read the status flag, and mask it */
1579 status = inw(ioaddr + INTERRUPT) & 0xff;
1580 DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1581 status, mask);
1582 if ((status & mask) == 0) {
1583 if (bogus_cnt == INTR_WORK)
1584 handled = 0;
1585 break;
1586 }
1587 if (status & IM_RCV_INT) {
1588 /* Got a packet(s). */
1589 smc_rx(dev);
1590 }
1591 if (status & IM_TX_INT) {
1592 smc_tx_err(dev);
1593 outw(IM_TX_INT, ioaddr + INTERRUPT);
1594 }
1595 status &= mask;
1596 if (status & IM_TX_EMPTY_INT) {
1597 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1598 mask &= ~IM_TX_EMPTY_INT;
1599 smc->stats.tx_packets += smc->packets_waiting;
1600 smc->packets_waiting = 0;
1601 }
1602 if (status & IM_ALLOC_INT) {
1603 /* Clear this interrupt so it doesn't happen again */
1604 mask &= ~IM_ALLOC_INT;
1605
1606 smc_hardware_send_packet(dev);
1607
1608 /* enable xmit interrupts based on this */
1609 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1610
1611 /* and let the card send more packets to me */
1612 netif_wake_queue(dev);
1613 }
1614 if (status & IM_RX_OVRN_INT) {
1615 smc->stats.rx_errors++;
1616 smc->stats.rx_fifo_errors++;
1617 if (smc->duplex)
1618 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1619 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1620 }
1621 if (status & IM_EPH_INT)
1622 smc_eph_irq(dev);
1623 } while (--bogus_cnt);
1624
1625 DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
1626 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1627
1628 /* restore state register */
1629 outw((mask<<8), ioaddr + INTERRUPT);
1630 outw(saved_pointer, ioaddr + POINTER);
1631 SMC_SELECT_BANK(saved_bank);
1632
1633 DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1634
1635 irq_done:
1636
1637 if ((smc->manfid == MANFID_OSITECH) &&
1638 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1639 /* Retrigger interrupt if needed */
1640 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1641 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1642 }
1643 if (smc->manfid == MANFID_MOTOROLA) {
1644 u_char cor;
1645 cor = readb(smc->base + MOT_UART + CISREG_COR);
1646 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1647 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1648 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1649 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1650 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1651 }
1652 #ifdef DOES_NOT_WORK
1653 if (smc->base != NULL) { /* Megahertz MFC's */
1654 readb(smc->base+MEGAHERTZ_ISR);
1655 readb(smc->base+MEGAHERTZ_ISR);
1656 }
1657 #endif
1658 return IRQ_RETVAL(handled);
1659 }
1660
1661 /*====================================================================*/
1662
1663 static void smc_rx(struct net_device *dev)
1664 {
1665 struct smc_private *smc = netdev_priv(dev);
1666 kio_addr_t ioaddr = dev->base_addr;
1667 int rx_status;
1668 int packet_length; /* Caution: not frame length, rather words
1669 to transfer from the chip. */
1670
1671 /* Assertion: we are in Window 2. */
1672
1673 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1674 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1675 dev->name);
1676 return;
1677 }
1678
1679 /* Reset the read pointer, and read the status and packet length. */
1680 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1681 rx_status = inw(ioaddr + DATA_1);
1682 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1683
1684 DEBUG(2, "%s: Receive status %4.4x length %d.\n",
1685 dev->name, rx_status, packet_length);
1686
1687 if (!(rx_status & RS_ERRORS)) {
1688 /* do stuff to make a new packet */
1689 struct sk_buff *skb;
1690
1691 /* Note: packet_length adds 5 or 6 extra bytes here! */
1692 skb = dev_alloc_skb(packet_length+2);
1693
1694 if (skb == NULL) {
1695 DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
1696 smc->stats.rx_dropped++;
1697 outw(MC_RELEASE, ioaddr + MMU_CMD);
1698 return;
1699 }
1700
1701 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1702 skb_reserve(skb, 2);
1703 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1704 (packet_length+1)>>1);
1705 skb->protocol = eth_type_trans(skb, dev);
1706
1707 skb->dev = dev;
1708 netif_rx(skb);
1709 dev->last_rx = jiffies;
1710 smc->stats.rx_packets++;
1711 smc->stats.rx_bytes += packet_length;
1712 if (rx_status & RS_MULTICAST)
1713 smc->stats.multicast++;
1714 } else {
1715 /* error ... */
1716 smc->stats.rx_errors++;
1717
1718 if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
1719 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1720 smc->stats.rx_length_errors++;
1721 if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
1722 }
1723 /* Let the MMU free the memory of this packet. */
1724 outw(MC_RELEASE, ioaddr + MMU_CMD);
1725
1726 return;
1727 }
1728
1729 /*====================================================================*/
1730
1731 static struct net_device_stats *smc_get_stats(struct net_device *dev)
1732 {
1733 struct smc_private *smc = netdev_priv(dev);
1734 /* Nothing to update - the 91c92 is a pretty primative chip. */
1735 return &smc->stats;
1736 }
1737
1738 /*======================================================================
1739
1740 Calculate values for the hardware multicast filter hash table.
1741
1742 ======================================================================*/
1743
1744 static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
1745 u_char *multicast_table)
1746 {
1747 struct dev_mc_list *mc_addr;
1748
1749 for (mc_addr = addrs; mc_addr && count-- > 0; mc_addr = mc_addr->next) {
1750 u_int position = ether_crc(6, mc_addr->dmi_addr);
1751 #ifndef final_version /* Verify multicast address. */
1752 if ((mc_addr->dmi_addr[0] & 1) == 0)
1753 continue;
1754 #endif
1755 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1756 }
1757 }
1758
1759 /*======================================================================
1760
1761 Set the receive mode.
1762
1763 This routine is used by both the protocol level to notify us of
1764 promiscuous/multicast mode changes, and by the open/reset code to
1765 initialize the Rx registers. We always set the multicast list and
1766 leave the receiver running.
1767
1768 ======================================================================*/
1769
1770 static void set_rx_mode(struct net_device *dev)
1771 {
1772 kio_addr_t ioaddr = dev->base_addr;
1773 struct smc_private *smc = netdev_priv(dev);
1774 u_int multicast_table[ 2 ] = { 0, };
1775 unsigned long flags;
1776 u_short rx_cfg_setting;
1777
1778 if (dev->flags & IFF_PROMISC) {
1779 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1780 } else if (dev->flags & IFF_ALLMULTI)
1781 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1782 else {
1783 if (dev->mc_count) {
1784 fill_multicast_tbl(dev->mc_count, dev->mc_list,
1785 (u_char *)multicast_table);
1786 }
1787 rx_cfg_setting = RxStripCRC | RxEnable;
1788 }
1789
1790 /* Load MC table and Rx setting into the chip without interrupts. */
1791 spin_lock_irqsave(&smc->lock, flags);
1792 SMC_SELECT_BANK(3);
1793 outl(multicast_table[0], ioaddr + MULTICAST0);
1794 outl(multicast_table[1], ioaddr + MULTICAST4);
1795 SMC_SELECT_BANK(0);
1796 outw(rx_cfg_setting, ioaddr + RCR);
1797 SMC_SELECT_BANK(2);
1798 spin_unlock_irqrestore(&smc->lock, flags);
1799
1800 return;
1801 }
1802
1803 /*======================================================================
1804
1805 Senses when a card's config changes. Here, it's coax or TP.
1806
1807 ======================================================================*/
1808
1809 static int s9k_config(struct net_device *dev, struct ifmap *map)
1810 {
1811 struct smc_private *smc = netdev_priv(dev);
1812 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1813 if (smc->cfg & CFG_MII_SELECT)
1814 return -EOPNOTSUPP;
1815 else if (map->port > 2)
1816 return -EINVAL;
1817 dev->if_port = map->port;
1818 printk(KERN_INFO "%s: switched to %s port\n",
1819 dev->name, if_names[dev->if_port]);
1820 smc_reset(dev);
1821 }
1822 return 0;
1823 }
1824
1825 /*======================================================================
1826
1827 Reset the chip, reloading every register that might be corrupted.
1828
1829 ======================================================================*/
1830
1831 /*
1832 Set transceiver type, perhaps to something other than what the user
1833 specified in dev->if_port.
1834 */
1835 static void smc_set_xcvr(struct net_device *dev, int if_port)
1836 {
1837 struct smc_private *smc = netdev_priv(dev);
1838 kio_addr_t ioaddr = dev->base_addr;
1839 u_short saved_bank;
1840
1841 saved_bank = inw(ioaddr + BANK_SELECT);
1842 SMC_SELECT_BANK(1);
1843 if (if_port == 2) {
1844 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1845 if ((smc->manfid == MANFID_OSITECH) &&
1846 (smc->cardid != PRODID_OSITECH_SEVEN))
1847 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1848 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1849 } else {
1850 outw(smc->cfg, ioaddr + CONFIG);
1851 if ((smc->manfid == MANFID_OSITECH) &&
1852 (smc->cardid != PRODID_OSITECH_SEVEN))
1853 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1854 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1855 }
1856 SMC_SELECT_BANK(saved_bank);
1857 }
1858
1859 static void smc_reset(struct net_device *dev)
1860 {
1861 kio_addr_t ioaddr = dev->base_addr;
1862 struct smc_private *smc = netdev_priv(dev);
1863 int i;
1864
1865 DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
1866
1867 /* The first interaction must be a write to bring the chip out
1868 of sleep mode. */
1869 SMC_SELECT_BANK(0);
1870 /* Reset the chip. */
1871 outw(RCR_SOFTRESET, ioaddr + RCR);
1872 udelay(10);
1873
1874 /* Clear the transmit and receive configuration registers. */
1875 outw(RCR_CLEAR, ioaddr + RCR);
1876 outw(TCR_CLEAR, ioaddr + TCR);
1877
1878 /* Set the Window 1 control, configuration and station addr registers.
1879 No point in writing the I/O base register ;-> */
1880 SMC_SELECT_BANK(1);
1881 /* Automatically release successfully transmitted packets,
1882 Accept link errors, counter and Tx error interrupts. */
1883 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1884 ioaddr + CONTROL);
1885 smc_set_xcvr(dev, dev->if_port);
1886 if ((smc->manfid == MANFID_OSITECH) &&
1887 (smc->cardid != PRODID_OSITECH_SEVEN))
1888 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1889 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1890 ioaddr - 0x10 + OSITECH_AUI_PWR);
1891
1892 /* Fill in the physical address. The databook is wrong about the order! */
1893 for (i = 0; i < 6; i += 2)
1894 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1895 ioaddr + ADDR0 + i);
1896
1897 /* Reset the MMU */
1898 SMC_SELECT_BANK(2);
1899 outw(MC_RESET, ioaddr + MMU_CMD);
1900 outw(0, ioaddr + INTERRUPT);
1901
1902 /* Re-enable the chip. */
1903 SMC_SELECT_BANK(0);
1904 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1905 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1906 set_rx_mode(dev);
1907
1908 if (smc->cfg & CFG_MII_SELECT) {
1909 SMC_SELECT_BANK(3);
1910
1911 /* Reset MII */
1912 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1913
1914 /* Advertise 100F, 100H, 10F, 10H */
1915 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1916
1917 /* Restart MII autonegotiation */
1918 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1919 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1920 }
1921
1922 /* Enable interrupts. */
1923 SMC_SELECT_BANK(2);
1924 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1925 ioaddr + INTERRUPT);
1926 }
1927
1928 /*======================================================================
1929
1930 Media selection timer routine
1931
1932 ======================================================================*/
1933
1934 static void media_check(u_long arg)
1935 {
1936 struct net_device *dev = (struct net_device *) arg;
1937 struct smc_private *smc = netdev_priv(dev);
1938 kio_addr_t ioaddr = dev->base_addr;
1939 u_short i, media, saved_bank;
1940 u_short link;
1941
1942 saved_bank = inw(ioaddr + BANK_SELECT);
1943
1944 if (!netif_device_present(dev))
1945 goto reschedule;
1946
1947 SMC_SELECT_BANK(2);
1948
1949 /* need MC_RESET to keep the memory consistent. errata? */
1950 if (smc->rx_ovrn) {
1951 outw(MC_RESET, ioaddr + MMU_CMD);
1952 smc->rx_ovrn = 0;
1953 }
1954 i = inw(ioaddr + INTERRUPT);
1955 SMC_SELECT_BANK(0);
1956 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1957 SMC_SELECT_BANK(1);
1958 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1959
1960 /* Check for pending interrupt with watchdog flag set: with
1961 this, we can limp along even if the interrupt is blocked */
1962 if (smc->watchdog++ && ((i>>8) & i)) {
1963 if (!smc->fast_poll)
1964 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1965 smc_interrupt(dev->irq, smc);
1966 smc->fast_poll = HZ;
1967 }
1968 if (smc->fast_poll) {
1969 smc->fast_poll--;
1970 smc->media.expires = jiffies + HZ/100;
1971 add_timer(&smc->media);
1972 SMC_SELECT_BANK(saved_bank);
1973 return;
1974 }
1975
1976 if (smc->cfg & CFG_MII_SELECT) {
1977 if (smc->mii_if.phy_id < 0)
1978 goto reschedule;
1979
1980 SMC_SELECT_BANK(3);
1981 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1982 if (!link || (link == 0xffff)) {
1983 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1984 smc->mii_if.phy_id = -1;
1985 goto reschedule;
1986 }
1987
1988 link &= 0x0004;
1989 if (link != smc->link_status) {
1990 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1991 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1992 (link) ? "found" : "lost");
1993 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1994 ? TCR_FDUPLX : 0);
1995 if (link) {
1996 printk(KERN_INFO "%s: autonegotiation complete: "
1997 "%sbaseT-%cD selected\n", dev->name,
1998 ((p & 0x0180) ? "100" : "10"),
1999 (smc->duplex ? 'F' : 'H'));
2000 }
2001 SMC_SELECT_BANK(0);
2002 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
2003 smc->link_status = link;
2004 }
2005 goto reschedule;
2006 }
2007
2008 /* Ignore collisions unless we've had no rx's recently */
2009 if (time_after(jiffies, dev->last_rx + HZ)) {
2010 if (smc->tx_err || (smc->media_status & EPH_16COL))
2011 media |= EPH_16COL;
2012 }
2013 smc->tx_err = 0;
2014
2015 if (media != smc->media_status) {
2016 if ((media & smc->media_status & 1) &&
2017 ((smc->media_status ^ media) & EPH_LINK_OK))
2018 printk(KERN_INFO "%s: %s link beat\n", dev->name,
2019 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
2020 else if ((media & smc->media_status & 2) &&
2021 ((smc->media_status ^ media) & EPH_16COL))
2022 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
2023 (media & EPH_16COL ? "problem" : "ok"));
2024 if (dev->if_port == 0) {
2025 if (media & 1) {
2026 if (media & EPH_LINK_OK)
2027 printk(KERN_INFO "%s: flipped to 10baseT\n",
2028 dev->name);
2029 else
2030 smc_set_xcvr(dev, 2);
2031 } else {
2032 if (media & EPH_16COL)
2033 smc_set_xcvr(dev, 1);
2034 else
2035 printk(KERN_INFO "%s: flipped to 10base2\n",
2036 dev->name);
2037 }
2038 }
2039 smc->media_status = media;
2040 }
2041
2042 reschedule:
2043 smc->media.expires = jiffies + HZ;
2044 add_timer(&smc->media);
2045 SMC_SELECT_BANK(saved_bank);
2046 }
2047
2048 static int smc_link_ok(struct net_device *dev)
2049 {
2050 kio_addr_t ioaddr = dev->base_addr;
2051 struct smc_private *smc = netdev_priv(dev);
2052
2053 if (smc->cfg & CFG_MII_SELECT) {
2054 return mii_link_ok(&smc->mii_if);
2055 } else {
2056 SMC_SELECT_BANK(0);
2057 return inw(ioaddr + EPH) & EPH_LINK_OK;
2058 }
2059 }
2060
2061 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2062 {
2063 u16 tmp;
2064 kio_addr_t ioaddr = dev->base_addr;
2065
2066 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
2067 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
2068
2069 SMC_SELECT_BANK(1);
2070 tmp = inw(ioaddr + CONFIG);
2071 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
2072 ecmd->transceiver = XCVR_INTERNAL;
2073 ecmd->speed = SPEED_10;
2074 ecmd->phy_address = ioaddr + MGMT;
2075
2076 SMC_SELECT_BANK(0);
2077 tmp = inw(ioaddr + TCR);
2078 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
2079
2080 return 0;
2081 }
2082
2083 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2084 {
2085 u16 tmp;
2086 kio_addr_t ioaddr = dev->base_addr;
2087
2088 if (ecmd->speed != SPEED_10)
2089 return -EINVAL;
2090 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
2091 return -EINVAL;
2092 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
2093 return -EINVAL;
2094 if (ecmd->transceiver != XCVR_INTERNAL)
2095 return -EINVAL;
2096
2097 if (ecmd->port == PORT_AUI)
2098 smc_set_xcvr(dev, 1);
2099 else
2100 smc_set_xcvr(dev, 0);
2101
2102 SMC_SELECT_BANK(0);
2103 tmp = inw(ioaddr + TCR);
2104 if (ecmd->duplex == DUPLEX_FULL)
2105 tmp |= TCR_FDUPLX;
2106 else
2107 tmp &= ~TCR_FDUPLX;
2108 outw(tmp, ioaddr + TCR);
2109
2110 return 0;
2111 }
2112
2113 static int check_if_running(struct net_device *dev)
2114 {
2115 if (!netif_running(dev))
2116 return -EINVAL;
2117 return 0;
2118 }
2119
2120 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2121 {
2122 strcpy(info->driver, DRV_NAME);
2123 strcpy(info->version, DRV_VERSION);
2124 }
2125
2126 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2127 {
2128 struct smc_private *smc = netdev_priv(dev);
2129 kio_addr_t ioaddr = dev->base_addr;
2130 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2131 int ret;
2132
2133 SMC_SELECT_BANK(3);
2134 spin_lock_irq(&smc->lock);
2135 if (smc->cfg & CFG_MII_SELECT)
2136 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
2137 else
2138 ret = smc_netdev_get_ecmd(dev, ecmd);
2139 spin_unlock_irq(&smc->lock);
2140 SMC_SELECT_BANK(saved_bank);
2141 return ret;
2142 }
2143
2144 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2145 {
2146 struct smc_private *smc = netdev_priv(dev);
2147 kio_addr_t ioaddr = dev->base_addr;
2148 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2149 int ret;
2150
2151 SMC_SELECT_BANK(3);
2152 spin_lock_irq(&smc->lock);
2153 if (smc->cfg & CFG_MII_SELECT)
2154 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2155 else
2156 ret = smc_netdev_set_ecmd(dev, ecmd);
2157 spin_unlock_irq(&smc->lock);
2158 SMC_SELECT_BANK(saved_bank);
2159 return ret;
2160 }
2161
2162 static u32 smc_get_link(struct net_device *dev)
2163 {
2164 struct smc_private *smc = netdev_priv(dev);
2165 kio_addr_t ioaddr = dev->base_addr;
2166 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2167 u32 ret;
2168
2169 SMC_SELECT_BANK(3);
2170 spin_lock_irq(&smc->lock);
2171 ret = smc_link_ok(dev);
2172 spin_unlock_irq(&smc->lock);
2173 SMC_SELECT_BANK(saved_bank);
2174 return ret;
2175 }
2176
2177 #ifdef PCMCIA_DEBUG
2178 static u32 smc_get_msglevel(struct net_device *dev)
2179 {
2180 return pc_debug;
2181 }
2182
2183 static void smc_set_msglevel(struct net_device *dev, u32 val)
2184 {
2185 pc_debug = val;
2186 }
2187 #endif
2188
2189 static int smc_nway_reset(struct net_device *dev)
2190 {
2191 struct smc_private *smc = netdev_priv(dev);
2192 if (smc->cfg & CFG_MII_SELECT) {
2193 kio_addr_t ioaddr = dev->base_addr;
2194 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2195 int res;
2196
2197 SMC_SELECT_BANK(3);
2198 res = mii_nway_restart(&smc->mii_if);
2199 SMC_SELECT_BANK(saved_bank);
2200
2201 return res;
2202 } else
2203 return -EOPNOTSUPP;
2204 }
2205
2206 static const struct ethtool_ops ethtool_ops = {
2207 .begin = check_if_running,
2208 .get_drvinfo = smc_get_drvinfo,
2209 .get_settings = smc_get_settings,
2210 .set_settings = smc_set_settings,
2211 .get_link = smc_get_link,
2212 #ifdef PCMCIA_DEBUG
2213 .get_msglevel = smc_get_msglevel,
2214 .set_msglevel = smc_set_msglevel,
2215 #endif
2216 .nway_reset = smc_nway_reset,
2217 };
2218
2219 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2220 {
2221 struct smc_private *smc = netdev_priv(dev);
2222 struct mii_ioctl_data *mii = if_mii(rq);
2223 int rc = 0;
2224 u16 saved_bank;
2225 kio_addr_t ioaddr = dev->base_addr;
2226
2227 if (!netif_running(dev))
2228 return -EINVAL;
2229
2230 spin_lock_irq(&smc->lock);
2231 saved_bank = inw(ioaddr + BANK_SELECT);
2232 SMC_SELECT_BANK(3);
2233 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2234 SMC_SELECT_BANK(saved_bank);
2235 spin_unlock_irq(&smc->lock);
2236 return rc;
2237 }
2238
2239 static struct pcmcia_device_id smc91c92_ids[] = {
2240 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2241 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2242 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2243 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2244 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2245 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2246 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2247 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2248 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2249 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2250 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2251 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2252 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2253 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2254 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2255 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2256 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2257 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2258 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2259 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2260 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2261 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2262 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2263 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2264 /* These conflict with other cards! */
2265 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2266 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2267 PCMCIA_DEVICE_NULL,
2268 };
2269 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2270
2271 static struct pcmcia_driver smc91c92_cs_driver = {
2272 .owner = THIS_MODULE,
2273 .drv = {
2274 .name = "smc91c92_cs",
2275 },
2276 .probe = smc91c92_probe,
2277 .remove = smc91c92_detach,
2278 .id_table = smc91c92_ids,
2279 .suspend = smc91c92_suspend,
2280 .resume = smc91c92_resume,
2281 };
2282
2283 static int __init init_smc91c92_cs(void)
2284 {
2285 return pcmcia_register_driver(&smc91c92_cs_driver);
2286 }
2287
2288 static void __exit exit_smc91c92_cs(void)
2289 {
2290 pcmcia_unregister_driver(&smc91c92_cs_driver);
2291 }
2292
2293 module_init(init_smc91c92_cs);
2294 module_exit(exit_smc91c92_cs);
Support for the Chinese Samsung S3C2440 based development boards