?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
pktcdvd: fix BUG caused by sysfs module reference semantics change
[linux-2.6.git] / drivers / net / pcmcia / smc91c92_cs.c
blobc9868e9dac4caa70675f9367498e93dc8a63ae99
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_DYNAMIC_SHARING|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 dev->hard_start_xmit = &smc_start_xmit;
340 dev->get_stats = &smc_get_stats;
341 dev->set_config = &s9k_config;
342 dev->set_multicast_list = &set_rx_mode;
343 dev->open = &smc_open;
344 dev->stop = &smc_close;
345 dev->do_ioctl = &smc_ioctl;
346 SET_ETHTOOL_OPS(dev, &ethtool_ops);
347 #ifdef HAVE_TX_TIMEOUT
348 dev->tx_timeout = smc_tx_timeout;
349 dev->watchdog_timeo = TX_TIMEOUT;
350 #endif
351
352 smc->mii_if.dev = dev;
353 smc->mii_if.mdio_read = mdio_read;
354 smc->mii_if.mdio_write = mdio_write;
355 smc->mii_if.phy_id_mask = 0x1f;
356 smc->mii_if.reg_num_mask = 0x1f;
357
358 return smc91c92_config(link);
359 } /* smc91c92_attach */
360
361 /*======================================================================
362
363 This deletes a driver "instance". The device is de-registered
364 with Card Services. If it has been released, all local data
365 structures are freed. Otherwise, the structures will be freed
366 when the device is released.
367
368 ======================================================================*/
369
370 static void smc91c92_detach(struct pcmcia_device *link)
371 {
372 struct net_device *dev = link->priv;
373
374 DEBUG(0, "smc91c92_detach(0x%p)\n", link);
375
376 if (link->dev_node)
377 unregister_netdev(dev);
378
379 smc91c92_release(link);
380
381 free_netdev(dev);
382 } /* smc91c92_detach */
383
384 /*====================================================================*/
385
386 static int cvt_ascii_address(struct net_device *dev, char *s)
387 {
388 int i, j, da, c;
389
390 if (strlen(s) != 12)
391 return -1;
392 for (i = 0; i < 6; i++) {
393 da = 0;
394 for (j = 0; j < 2; j++) {
395 c = *s++;
396 da <<= 4;
397 da += ((c >= '0') && (c <= '9')) ?
398 (c - '0') : ((c & 0x0f) + 9);
399 }
400 dev->dev_addr[i] = da;
401 }
402 return 0;
403 }
404
405 /*====================================================================*/
406
407 static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple,
408 cisparse_t *parse)
409 {
410 int i;
411
412 if ((i = pcmcia_get_first_tuple(handle, tuple)) != CS_SUCCESS ||
413 (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
414 return i;
415 return pcmcia_parse_tuple(handle, tuple, parse);
416 }
417
418 static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple,
419 cisparse_t *parse)
420 {
421 int i;
422
423 if ((i = pcmcia_get_next_tuple(handle, tuple)) != CS_SUCCESS ||
424 (i = pcmcia_get_tuple_data(handle, tuple)) != CS_SUCCESS)
425 return i;
426 return pcmcia_parse_tuple(handle, tuple, parse);
427 }
428
429 /*======================================================================
430
431 Configuration stuff for Megahertz cards
432
433 mhz_3288_power() is used to power up a 3288's ethernet chip.
434 mhz_mfc_config() handles socket setup for multifunction (1144
435 and 3288) cards. mhz_setup() gets a card's hardware ethernet
436 address.
437
438 ======================================================================*/
439
440 static int mhz_3288_power(struct pcmcia_device *link)
441 {
442 struct net_device *dev = link->priv;
443 struct smc_private *smc = netdev_priv(dev);
444 u_char tmp;
445
446 /* Read the ISR twice... */
447 readb(smc->base+MEGAHERTZ_ISR);
448 udelay(5);
449 readb(smc->base+MEGAHERTZ_ISR);
450
451 /* Pause 200ms... */
452 mdelay(200);
453
454 /* Now read and write the COR... */
455 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
456 udelay(5);
457 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
458
459 return 0;
460 }
461
462 static int mhz_mfc_config(struct pcmcia_device *link)
463 {
464 struct net_device *dev = link->priv;
465 struct smc_private *smc = netdev_priv(dev);
466 struct smc_cfg_mem *cfg_mem;
467 tuple_t *tuple;
468 cisparse_t *parse;
469 cistpl_cftable_entry_t *cf;
470 u_char *buf;
471 win_req_t req;
472 memreq_t mem;
473 int i, k;
474
475 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
476 if (!cfg_mem)
477 return CS_OUT_OF_RESOURCE;
478
479 tuple = &cfg_mem->tuple;
480 parse = &cfg_mem->parse;
481 cf = &parse->cftable_entry;
482 buf = cfg_mem->buf;
483
484 link->conf.Attributes |= CONF_ENABLE_SPKR;
485 link->conf.Status = CCSR_AUDIO_ENA;
486 link->irq.Attributes =
487 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
488 link->io.IOAddrLines = 16;
489 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
490 link->io.NumPorts2 = 8;
491
492 tuple->Attributes = tuple->TupleOffset = 0;
493 tuple->TupleData = (cisdata_t *)buf;
494 tuple->TupleDataMax = 255;
495 tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
496
497 i = first_tuple(link, tuple, parse);
498 /* The Megahertz combo cards have modem-like CIS entries, so
499 we have to explicitly try a bunch of port combinations. */
500 while (i == CS_SUCCESS) {
501 link->conf.ConfigIndex = cf->index;
502 link->io.BasePort2 = cf->io.win[0].base;
503 for (k = 0; k < 0x400; k += 0x10) {
504 if (k & 0x80) continue;
505 link->io.BasePort1 = k ^ 0x300;
506 i = pcmcia_request_io(link, &link->io);
507 if (i == CS_SUCCESS) break;
508 }
509 if (i == CS_SUCCESS) break;
510 i = next_tuple(link, tuple, parse);
511 }
512 if (i != CS_SUCCESS)
513 goto free_cfg_mem;
514 dev->base_addr = link->io.BasePort1;
515
516 /* Allocate a memory window, for accessing the ISR */
517 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
518 req.Base = req.Size = 0;
519 req.AccessSpeed = 0;
520 i = pcmcia_request_window(&link, &req, &link->win);
521 if (i != CS_SUCCESS)
522 goto free_cfg_mem;
523 smc->base = ioremap(req.Base, req.Size);
524 mem.CardOffset = mem.Page = 0;
525 if (smc->manfid == MANFID_MOTOROLA)
526 mem.CardOffset = link->conf.ConfigBase;
527 i = pcmcia_map_mem_page(link->win, &mem);
528
529 if ((i == CS_SUCCESS)
530 && (smc->manfid == MANFID_MEGAHERTZ)
531 && (smc->cardid == PRODID_MEGAHERTZ_EM3288))
532 mhz_3288_power(link);
533
534 free_cfg_mem:
535 kfree(cfg_mem);
536 return i;
537 }
538
539 static int mhz_setup(struct pcmcia_device *link)
540 {
541 struct net_device *dev = link->priv;
542 struct smc_cfg_mem *cfg_mem;
543 tuple_t *tuple;
544 cisparse_t *parse;
545 u_char *buf, *station_addr;
546 int rc;
547
548 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
549 if (!cfg_mem)
550 return -1;
551
552 tuple = &cfg_mem->tuple;
553 parse = &cfg_mem->parse;
554 buf = cfg_mem->buf;
555
556 tuple->Attributes = tuple->TupleOffset = 0;
557 tuple->TupleData = (cisdata_t *)buf;
558 tuple->TupleDataMax = 255;
559
560 /* Read the station address from the CIS. It is stored as the last
561 (fourth) string in the Version 1 Version/ID tuple. */
562 if (link->prod_id[3]) {
563 station_addr = link->prod_id[3];
564 if (cvt_ascii_address(dev, station_addr) == 0) {
565 rc = 0;
566 goto free_cfg_mem;
567 }
568 }
569
570 /* Another possibility: for the EM3288, in a special tuple */
571 tuple->DesiredTuple = 0x81;
572 if (pcmcia_get_first_tuple(link, tuple) != CS_SUCCESS) {
573 rc = -1;
574 goto free_cfg_mem;
575 }
576 if (pcmcia_get_tuple_data(link, tuple) != CS_SUCCESS) {
577 rc = -1;
578 goto free_cfg_mem;
579 }
580 buf[12] = '\0';
581 if (cvt_ascii_address(dev, buf) == 0) {
582 rc = 0;
583 goto free_cfg_mem;
584 }
585 rc = -1;
586 free_cfg_mem:
587 kfree(cfg_mem);
588 return rc;
589 }
590
591 /*======================================================================
592
593 Configuration stuff for the Motorola Mariner
594
595 mot_config() writes directly to the Mariner configuration
596 registers because the CIS is just bogus.
597
598 ======================================================================*/
599
600 static void mot_config(struct pcmcia_device *link)
601 {
602 struct net_device *dev = link->priv;
603 struct smc_private *smc = netdev_priv(dev);
604 kio_addr_t ioaddr = dev->base_addr;
605 kio_addr_t iouart = link->io.BasePort2;
606
607 /* Set UART base address and force map with COR bit 1 */
608 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
609 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
610 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
611
612 /* Set SMC base address and force map with COR bit 1 */
613 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
614 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
615 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
616
617 /* Wait for things to settle down */
618 mdelay(100);
619 }
620
621 static int mot_setup(struct pcmcia_device *link)
622 {
623 struct net_device *dev = link->priv;
624 kio_addr_t ioaddr = dev->base_addr;
625 int i, wait, loop;
626 u_int addr;
627
628 /* Read Ethernet address from Serial EEPROM */
629
630 for (i = 0; i < 3; i++) {
631 SMC_SELECT_BANK(2);
632 outw(MOT_EEPROM + i, ioaddr + POINTER);
633 SMC_SELECT_BANK(1);
634 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
635
636 for (loop = wait = 0; loop < 200; loop++) {
637 udelay(10);
638 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
639 if (wait == 0) break;
640 }
641
642 if (wait)
643 return -1;
644
645 addr = inw(ioaddr + GENERAL);
646 dev->dev_addr[2*i] = addr & 0xff;
647 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
648 }
649
650 return 0;
651 }
652
653 /*====================================================================*/
654
655 static int smc_config(struct pcmcia_device *link)
656 {
657 struct net_device *dev = link->priv;
658 struct smc_cfg_mem *cfg_mem;
659 tuple_t *tuple;
660 cisparse_t *parse;
661 cistpl_cftable_entry_t *cf;
662 u_char *buf;
663 int i;
664
665 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
666 if (!cfg_mem)
667 return CS_OUT_OF_RESOURCE;
668
669 tuple = &cfg_mem->tuple;
670 parse = &cfg_mem->parse;
671 cf = &parse->cftable_entry;
672 buf = cfg_mem->buf;
673
674 tuple->Attributes = tuple->TupleOffset = 0;
675 tuple->TupleData = (cisdata_t *)buf;
676 tuple->TupleDataMax = 255;
677 tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
678
679 link->io.NumPorts1 = 16;
680 i = first_tuple(link, tuple, parse);
681 while (i != CS_NO_MORE_ITEMS) {
682 if (i == CS_SUCCESS) {
683 link->conf.ConfigIndex = cf->index;
684 link->io.BasePort1 = cf->io.win[0].base;
685 link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
686 i = pcmcia_request_io(link, &link->io);
687 if (i == CS_SUCCESS) break;
688 }
689 i = next_tuple(link, tuple, parse);
690 }
691 if (i == CS_SUCCESS)
692 dev->base_addr = link->io.BasePort1;
693
694 kfree(cfg_mem);
695 return i;
696 }
697
698 static int smc_setup(struct pcmcia_device *link)
699 {
700 struct net_device *dev = link->priv;
701 struct smc_cfg_mem *cfg_mem;
702 tuple_t *tuple;
703 cisparse_t *parse;
704 cistpl_lan_node_id_t *node_id;
705 u_char *buf, *station_addr;
706 int i, rc;
707
708 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
709 if (!cfg_mem)
710 return CS_OUT_OF_RESOURCE;
711
712 tuple = &cfg_mem->tuple;
713 parse = &cfg_mem->parse;
714 buf = cfg_mem->buf;
715
716 tuple->Attributes = tuple->TupleOffset = 0;
717 tuple->TupleData = (cisdata_t *)buf;
718 tuple->TupleDataMax = 255;
719
720 /* Check for a LAN function extension tuple */
721 tuple->DesiredTuple = CISTPL_FUNCE;
722 i = first_tuple(link, tuple, parse);
723 while (i == CS_SUCCESS) {
724 if (parse->funce.type == CISTPL_FUNCE_LAN_NODE_ID)
725 break;
726 i = next_tuple(link, tuple, parse);
727 }
728 if (i == CS_SUCCESS) {
729 node_id = (cistpl_lan_node_id_t *)parse->funce.data;
730 if (node_id->nb == 6) {
731 for (i = 0; i < 6; i++)
732 dev->dev_addr[i] = node_id->id[i];
733 rc = 0;
734 goto free_cfg_mem;
735 }
736 }
737 /* Try the third string in the Version 1 Version/ID tuple. */
738 if (link->prod_id[2]) {
739 station_addr = link->prod_id[2];
740 if (cvt_ascii_address(dev, station_addr) == 0) {
741 rc = 0;
742 goto free_cfg_mem;
743 }
744 }
745
746 rc = -1;
747 free_cfg_mem:
748 kfree(cfg_mem);
749 return rc;
750 }
751
752 /*====================================================================*/
753
754 static int osi_config(struct pcmcia_device *link)
755 {
756 struct net_device *dev = link->priv;
757 static const kio_addr_t com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
758 int i, j;
759
760 link->conf.Attributes |= CONF_ENABLE_SPKR;
761 link->conf.Status = CCSR_AUDIO_ENA;
762 link->irq.Attributes =
763 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
764 link->io.NumPorts1 = 64;
765 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
766 link->io.NumPorts2 = 8;
767 link->io.IOAddrLines = 16;
768
769 /* Enable Hard Decode, LAN, Modem */
770 link->conf.ConfigIndex = 0x23;
771
772 for (i = j = 0; j < 4; j++) {
773 link->io.BasePort2 = com[j];
774 i = pcmcia_request_io(link, &link->io);
775 if (i == CS_SUCCESS) break;
776 }
777 if (i != CS_SUCCESS) {
778 /* Fallback: turn off hard decode */
779 link->conf.ConfigIndex = 0x03;
780 link->io.NumPorts2 = 0;
781 i = pcmcia_request_io(link, &link->io);
782 }
783 dev->base_addr = link->io.BasePort1 + 0x10;
784 return i;
785 }
786
787 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
788 {
789 struct net_device *dev = link->priv;
790 struct smc_cfg_mem *cfg_mem;
791 tuple_t *tuple;
792 u_char *buf;
793 int i, rc;
794
795 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
796 if (!cfg_mem)
797 return -1;
798
799 tuple = &cfg_mem->tuple;
800 buf = cfg_mem->buf;
801
802 tuple->Attributes = TUPLE_RETURN_COMMON;
803 tuple->TupleData = (cisdata_t *)buf;
804 tuple->TupleDataMax = 255;
805 tuple->TupleOffset = 0;
806
807 /* Read the station address from tuple 0x90, subtuple 0x04 */
808 tuple->DesiredTuple = 0x90;
809 i = pcmcia_get_first_tuple(link, tuple);
810 while (i == CS_SUCCESS) {
811 i = pcmcia_get_tuple_data(link, tuple);
812 if ((i != CS_SUCCESS) || (buf[0] == 0x04))
813 break;
814 i = pcmcia_get_next_tuple(link, tuple);
815 }
816 if (i != CS_SUCCESS) {
817 rc = -1;
818 goto free_cfg_mem;
819 }
820 for (i = 0; i < 6; i++)
821 dev->dev_addr[i] = buf[i+2];
822
823 if (((manfid == MANFID_OSITECH) &&
824 (cardid == PRODID_OSITECH_SEVEN)) ||
825 ((manfid == MANFID_PSION) &&
826 (cardid == PRODID_PSION_NET100))) {
827 /* Download the Seven of Diamonds firmware */
828 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
829 outb(__Xilinx7OD[i], link->io.BasePort1+2);
830 udelay(50);
831 }
832 } else if (manfid == MANFID_OSITECH) {
833 /* Make sure both functions are powered up */
834 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
835 /* Now, turn on the interrupt for both card functions */
836 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
837 DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
838 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
839 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
840 }
841 rc = 0;
842 free_cfg_mem:
843 kfree(cfg_mem);
844 return rc;
845 }
846
847 static int smc91c92_suspend(struct pcmcia_device *link)
848 {
849 struct net_device *dev = link->priv;
850
851 if (link->open)
852 netif_device_detach(dev);
853
854 return 0;
855 }
856
857 static int smc91c92_resume(struct pcmcia_device *link)
858 {
859 struct net_device *dev = link->priv;
860 struct smc_private *smc = netdev_priv(dev);
861 int i;
862
863 if ((smc->manfid == MANFID_MEGAHERTZ) &&
864 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
865 mhz_3288_power(link);
866 if (smc->manfid == MANFID_MOTOROLA)
867 mot_config(link);
868 if ((smc->manfid == MANFID_OSITECH) &&
869 (smc->cardid != PRODID_OSITECH_SEVEN)) {
870 /* Power up the card and enable interrupts */
871 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
872 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
873 }
874 if (((smc->manfid == MANFID_OSITECH) &&
875 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
876 ((smc->manfid == MANFID_PSION) &&
877 (smc->cardid == PRODID_PSION_NET100))) {
878 /* Download the Seven of Diamonds firmware */
879 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
880 outb(__Xilinx7OD[i], link->io.BasePort1+2);
881 udelay(50);
882 }
883 }
884 if (link->open) {
885 smc_reset(dev);
886 netif_device_attach(dev);
887 }
888
889 return 0;
890 }
891
892
893 /*======================================================================
894
895 This verifies that the chip is some SMC91cXX variant, and returns
896 the revision code if successful. Otherwise, it returns -ENODEV.
897
898 ======================================================================*/
899
900 static int check_sig(struct pcmcia_device *link)
901 {
902 struct net_device *dev = link->priv;
903 kio_addr_t ioaddr = dev->base_addr;
904 int width;
905 u_short s;
906
907 SMC_SELECT_BANK(1);
908 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
909 /* Try powering up the chip */
910 outw(0, ioaddr + CONTROL);
911 mdelay(55);
912 }
913
914 /* Try setting bus width */
915 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
916 s = inb(ioaddr + CONFIG);
917 if (width)
918 s |= CFG_16BIT;
919 else
920 s &= ~CFG_16BIT;
921 outb(s, ioaddr + CONFIG);
922
923 /* Check Base Address Register to make sure bus width is OK */
924 s = inw(ioaddr + BASE_ADDR);
925 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
926 ((s >> 8) != (s & 0xff))) {
927 SMC_SELECT_BANK(3);
928 s = inw(ioaddr + REVISION);
929 return (s & 0xff);
930 }
931
932 if (width) {
933 modconf_t mod = {
934 .Attributes = CONF_IO_CHANGE_WIDTH,
935 };
936 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
937
938 smc91c92_suspend(link);
939 pcmcia_modify_configuration(link, &mod);
940 smc91c92_resume(link);
941 return check_sig(link);
942 }
943 return -ENODEV;
944 }
945
946 /*======================================================================
947
948 smc91c92_config() is scheduled to run after a CARD_INSERTION event
949 is received, to configure the PCMCIA socket, and to make the
950 ethernet device available to the system.
951
952 ======================================================================*/
953
954 #define CS_EXIT_TEST(ret, svc, label) \
955 if (ret != CS_SUCCESS) { cs_error(link, svc, ret); goto label; }
956
957 static int smc91c92_config(struct pcmcia_device *link)
958 {
959 struct net_device *dev = link->priv;
960 struct smc_private *smc = netdev_priv(dev);
961 char *name;
962 int i, j, rev;
963 kio_addr_t ioaddr;
964 u_long mir;
965 DECLARE_MAC_BUF(mac);
966
967 DEBUG(0, "smc91c92_config(0x%p)\n", link);
968
969 smc->manfid = link->manf_id;
970 smc->cardid = link->card_id;
971
972 if ((smc->manfid == MANFID_OSITECH) &&
973 (smc->cardid != PRODID_OSITECH_SEVEN)) {
974 i = osi_config(link);
975 } else if ((smc->manfid == MANFID_MOTOROLA) ||
976 ((smc->manfid == MANFID_MEGAHERTZ) &&
977 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
978 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
979 i = mhz_mfc_config(link);
980 } else {
981 i = smc_config(link);
982 }
983 CS_EXIT_TEST(i, RequestIO, config_failed);
984
985 i = pcmcia_request_irq(link, &link->irq);
986 CS_EXIT_TEST(i, RequestIRQ, config_failed);
987 i = pcmcia_request_configuration(link, &link->conf);
988 CS_EXIT_TEST(i, RequestConfiguration, config_failed);
989
990 if (smc->manfid == MANFID_MOTOROLA)
991 mot_config(link);
992
993 dev->irq = link->irq.AssignedIRQ;
994
995 if ((if_port >= 0) && (if_port <= 2))
996 dev->if_port = if_port;
997 else
998 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
999
1000 switch (smc->manfid) {
1001 case MANFID_OSITECH:
1002 case MANFID_PSION:
1003 i = osi_setup(link, smc->manfid, smc->cardid); break;
1004 case MANFID_SMC:
1005 case MANFID_NEW_MEDIA:
1006 i = smc_setup(link); break;
1007 case 0x128: /* For broken Megahertz cards */
1008 case MANFID_MEGAHERTZ:
1009 i = mhz_setup(link); break;
1010 case MANFID_MOTOROLA:
1011 default: /* get the hw address from EEPROM */
1012 i = mot_setup(link); break;
1013 }
1014
1015 if (i != 0) {
1016 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
1017 goto config_undo;
1018 }
1019
1020 smc->duplex = 0;
1021 smc->rx_ovrn = 0;
1022
1023 rev = check_sig(link);
1024 name = "???";
1025 if (rev > 0)
1026 switch (rev >> 4) {
1027 case 3: name = "92"; break;
1028 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
1029 case 5: name = "95"; break;
1030 case 7: name = "100"; break;
1031 case 8: name = "100-FD"; break;
1032 case 9: name = "110"; break;
1033 }
1034
1035 ioaddr = dev->base_addr;
1036 if (rev > 0) {
1037 u_long mcr;
1038 SMC_SELECT_BANK(0);
1039 mir = inw(ioaddr + MEMINFO) & 0xff;
1040 if (mir == 0xff) mir++;
1041 /* Get scale factor for memory size */
1042 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
1043 mir *= 128 * (1<<((mcr >> 9) & 7));
1044 SMC_SELECT_BANK(1);
1045 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
1046 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
1047 if (smc->manfid == MANFID_OSITECH)
1048 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
1049 if ((rev >> 4) >= 7)
1050 smc->cfg |= CFG_MII_SELECT;
1051 } else
1052 mir = 0;
1053
1054 if (smc->cfg & CFG_MII_SELECT) {
1055 SMC_SELECT_BANK(3);
1056
1057 for (i = 0; i < 32; i++) {
1058 j = mdio_read(dev, i, 1);
1059 if ((j != 0) && (j != 0xffff)) break;
1060 }
1061 smc->mii_if.phy_id = (i < 32) ? i : -1;
1062
1063 SMC_SELECT_BANK(0);
1064 }
1065
1066 link->dev_node = &smc->node;
1067 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1068
1069 if (register_netdev(dev) != 0) {
1070 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
1071 link->dev_node = NULL;
1072 goto config_undo;
1073 }
1074
1075 strcpy(smc->node.dev_name, dev->name);
1076
1077 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
1078 "hw_addr %s\n",
1079 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
1080 print_mac(mac, dev->dev_addr));
1081
1082 if (rev > 0) {
1083 if (mir & 0x3ff)
1084 printk(KERN_INFO " %lu byte", mir);
1085 else
1086 printk(KERN_INFO " %lu kb", mir>>10);
1087 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
1088 "MII" : if_names[dev->if_port]);
1089 }
1090
1091 if (smc->cfg & CFG_MII_SELECT) {
1092 if (smc->mii_if.phy_id != -1) {
1093 DEBUG(0, " MII transceiver at index %d, status %x.\n",
1094 smc->mii_if.phy_id, j);
1095 } else {
1096 printk(KERN_NOTICE " No MII transceivers found!\n");
1097 }
1098 }
1099 return 0;
1100
1101 config_undo:
1102 unregister_netdev(dev);
1103 config_failed: /* CS_EXIT_TEST() calls jump to here... */
1104 smc91c92_release(link);
1105 return -ENODEV;
1106 } /* smc91c92_config */
1107
1108 /*======================================================================
1109
1110 After a card is removed, smc91c92_release() will unregister the net
1111 device, and release the PCMCIA configuration. If the device is
1112 still open, this will be postponed until it is closed.
1113
1114 ======================================================================*/
1115
1116 static void smc91c92_release(struct pcmcia_device *link)
1117 {
1118 DEBUG(0, "smc91c92_release(0x%p)\n", link);
1119 if (link->win) {
1120 struct net_device *dev = link->priv;
1121 struct smc_private *smc = netdev_priv(dev);
1122 iounmap(smc->base);
1123 }
1124 pcmcia_disable_device(link);
1125 }
1126
1127 /*======================================================================
1128
1129 MII interface support for SMC91cXX based cards
1130 ======================================================================*/
1131
1132 #define MDIO_SHIFT_CLK 0x04
1133 #define MDIO_DATA_OUT 0x01
1134 #define MDIO_DIR_WRITE 0x08
1135 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1136 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1137 #define MDIO_DATA_READ 0x02
1138
1139 static void mdio_sync(kio_addr_t addr)
1140 {
1141 int bits;
1142 for (bits = 0; bits < 32; bits++) {
1143 outb(MDIO_DATA_WRITE1, addr);
1144 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1145 }
1146 }
1147
1148 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1149 {
1150 kio_addr_t addr = dev->base_addr + MGMT;
1151 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1152 int i, retval = 0;
1153
1154 mdio_sync(addr);
1155 for (i = 13; i >= 0; i--) {
1156 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1157 outb(dat, addr);
1158 outb(dat | MDIO_SHIFT_CLK, addr);
1159 }
1160 for (i = 19; i > 0; i--) {
1161 outb(0, addr);
1162 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1163 outb(MDIO_SHIFT_CLK, addr);
1164 }
1165 return (retval>>1) & 0xffff;
1166 }
1167
1168 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1169 {
1170 kio_addr_t addr = dev->base_addr + MGMT;
1171 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1172 int i;
1173
1174 mdio_sync(addr);
1175 for (i = 31; i >= 0; i--) {
1176 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1177 outb(dat, addr);
1178 outb(dat | MDIO_SHIFT_CLK, addr);
1179 }
1180 for (i = 1; i >= 0; i--) {
1181 outb(0, addr);
1182 outb(MDIO_SHIFT_CLK, addr);
1183 }
1184 }
1185
1186 /*======================================================================
1187
1188 The driver core code, most of which should be common with a
1189 non-PCMCIA implementation.
1190
1191 ======================================================================*/
1192
1193 #ifdef PCMCIA_DEBUG
1194 static void smc_dump(struct net_device *dev)
1195 {
1196 kio_addr_t ioaddr = dev->base_addr;
1197 u_short i, w, save;
1198 save = inw(ioaddr + BANK_SELECT);
1199 for (w = 0; w < 4; w++) {
1200 SMC_SELECT_BANK(w);
1201 printk(KERN_DEBUG "bank %d: ", w);
1202 for (i = 0; i < 14; i += 2)
1203 printk(" %04x", inw(ioaddr + i));
1204 printk("\n");
1205 }
1206 outw(save, ioaddr + BANK_SELECT);
1207 }
1208 #endif
1209
1210 static int smc_open(struct net_device *dev)
1211 {
1212 struct smc_private *smc = netdev_priv(dev);
1213 struct pcmcia_device *link = smc->p_dev;
1214
1215 #ifdef PCMCIA_DEBUG
1216 DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
1217 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1218 if (pc_debug > 1) smc_dump(dev);
1219 #endif
1220
1221 /* Check that the PCMCIA card is still here. */
1222 if (!pcmcia_dev_present(link))
1223 return -ENODEV;
1224 /* Physical device present signature. */
1225 if (check_sig(link) < 0) {
1226 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1227 return -ENODEV;
1228 }
1229 link->open++;
1230
1231 netif_start_queue(dev);
1232 smc->saved_skb = NULL;
1233 smc->packets_waiting = 0;
1234
1235 smc_reset(dev);
1236 init_timer(&smc->media);
1237 smc->media.function = &media_check;
1238 smc->media.data = (u_long) dev;
1239 smc->media.expires = jiffies + HZ;
1240 add_timer(&smc->media);
1241
1242 return 0;
1243 } /* smc_open */
1244
1245 /*====================================================================*/
1246
1247 static int smc_close(struct net_device *dev)
1248 {
1249 struct smc_private *smc = netdev_priv(dev);
1250 struct pcmcia_device *link = smc->p_dev;
1251 kio_addr_t ioaddr = dev->base_addr;
1252
1253 DEBUG(0, "%s: smc_close(), status %4.4x.\n",
1254 dev->name, inw(ioaddr + BANK_SELECT));
1255
1256 netif_stop_queue(dev);
1257
1258 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1259 Don't bother to check for chip present. */
1260 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1261 outw(0, ioaddr + INTERRUPT);
1262 SMC_SELECT_BANK(0);
1263 mask_bits(0xff00, ioaddr + RCR);
1264 mask_bits(0xff00, ioaddr + TCR);
1265
1266 /* Put the chip into power-down mode. */
1267 SMC_SELECT_BANK(1);
1268 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1269
1270 link->open--;
1271 del_timer_sync(&smc->media);
1272
1273 return 0;
1274 } /* smc_close */
1275
1276 /*======================================================================
1277
1278 Transfer a packet to the hardware and trigger the packet send.
1279 This may be called at either from either the Tx queue code
1280 or the interrupt handler.
1281
1282 ======================================================================*/
1283
1284 static void smc_hardware_send_packet(struct net_device * dev)
1285 {
1286 struct smc_private *smc = netdev_priv(dev);
1287 struct sk_buff *skb = smc->saved_skb;
1288 kio_addr_t ioaddr = dev->base_addr;
1289 u_char packet_no;
1290
1291 if (!skb) {
1292 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1293 return;
1294 }
1295
1296 /* There should be a packet slot waiting. */
1297 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1298 if (packet_no & 0x80) {
1299 /* If not, there is a hardware problem! Likely an ejected card. */
1300 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1301 " failed, status %#2.2x.\n", dev->name, packet_no);
1302 dev_kfree_skb_irq(skb);
1303 smc->saved_skb = NULL;
1304 netif_start_queue(dev);
1305 return;
1306 }
1307
1308 smc->stats.tx_bytes += skb->len;
1309 /* The card should use the just-allocated buffer. */
1310 outw(packet_no, ioaddr + PNR_ARR);
1311 /* point to the beginning of the packet */
1312 outw(PTR_AUTOINC , ioaddr + POINTER);
1313
1314 /* Send the packet length (+6 for status, length and ctl byte)
1315 and the status word (set to zeros). */
1316 {
1317 u_char *buf = skb->data;
1318 u_int length = skb->len; /* The chip will pad to ethernet min. */
1319
1320 DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
1321 dev->name, length);
1322
1323 /* send the packet length: +6 for status word, length, and ctl */
1324 outw(0, ioaddr + DATA_1);
1325 outw(length + 6, ioaddr + DATA_1);
1326 outsw(ioaddr + DATA_1, buf, length >> 1);
1327
1328 /* The odd last byte, if there is one, goes in the control word. */
1329 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1330 }
1331
1332 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1333 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1334 (inw(ioaddr + INTERRUPT) & 0xff00),
1335 ioaddr + INTERRUPT);
1336
1337 /* The chip does the rest of the work. */
1338 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1339
1340 smc->saved_skb = NULL;
1341 dev_kfree_skb_irq(skb);
1342 dev->trans_start = jiffies;
1343 netif_start_queue(dev);
1344 return;
1345 }
1346
1347 /*====================================================================*/
1348
1349 static void smc_tx_timeout(struct net_device *dev)
1350 {
1351 struct smc_private *smc = netdev_priv(dev);
1352 kio_addr_t ioaddr = dev->base_addr;
1353
1354 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1355 "Tx_status %2.2x status %4.4x.\n",
1356 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1357 smc->stats.tx_errors++;
1358 smc_reset(dev);
1359 dev->trans_start = jiffies;
1360 smc->saved_skb = NULL;
1361 netif_wake_queue(dev);
1362 }
1363
1364 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
1365 {
1366 struct smc_private *smc = netdev_priv(dev);
1367 kio_addr_t ioaddr = dev->base_addr;
1368 u_short num_pages;
1369 short time_out, ir;
1370 unsigned long flags;
1371
1372 netif_stop_queue(dev);
1373
1374 DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
1375 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1376
1377 if (smc->saved_skb) {
1378 /* THIS SHOULD NEVER HAPPEN. */
1379 smc->stats.tx_aborted_errors++;
1380 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1381 dev->name);
1382 return 1;
1383 }
1384 smc->saved_skb = skb;
1385
1386 num_pages = skb->len >> 8;
1387
1388 if (num_pages > 7) {
1389 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1390 dev_kfree_skb (skb);
1391 smc->saved_skb = NULL;
1392 smc->stats.tx_dropped++;
1393 return 0; /* Do not re-queue this packet. */
1394 }
1395 /* A packet is now waiting. */
1396 smc->packets_waiting++;
1397
1398 spin_lock_irqsave(&smc->lock, flags);
1399 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1400
1401 /* need MC_RESET to keep the memory consistent. errata? */
1402 if (smc->rx_ovrn) {
1403 outw(MC_RESET, ioaddr + MMU_CMD);
1404 smc->rx_ovrn = 0;
1405 }
1406
1407 /* Allocate the memory; send the packet now if we win. */
1408 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1409 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1410 ir = inw(ioaddr+INTERRUPT);
1411 if (ir & IM_ALLOC_INT) {
1412 /* Acknowledge the interrupt, send the packet. */
1413 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1414 smc_hardware_send_packet(dev); /* Send the packet now.. */
1415 spin_unlock_irqrestore(&smc->lock, flags);
1416 return 0;
1417 }
1418 }
1419
1420 /* Otherwise defer until the Tx-space-allocated interrupt. */
1421 DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
1422 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1423 spin_unlock_irqrestore(&smc->lock, flags);
1424
1425 return 0;
1426 }
1427
1428 /*======================================================================
1429
1430 Handle a Tx anomolous event. Entered while in Window 2.
1431
1432 ======================================================================*/
1433
1434 static void smc_tx_err(struct net_device * dev)
1435 {
1436 struct smc_private *smc = netdev_priv(dev);
1437 kio_addr_t ioaddr = dev->base_addr;
1438 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1439 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1440 int tx_status;
1441
1442 /* select this as the packet to read from */
1443 outw(packet_no, ioaddr + PNR_ARR);
1444
1445 /* read the first word from this packet */
1446 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1447
1448 tx_status = inw(ioaddr + DATA_1);
1449
1450 smc->stats.tx_errors++;
1451 if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
1452 if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
1453 if (tx_status & TS_16COL) {
1454 smc->stats.tx_aborted_errors++;
1455 smc->tx_err++;
1456 }
1457
1458 if (tx_status & TS_SUCCESS) {
1459 printk(KERN_NOTICE "%s: Successful packet caused error "
1460 "interrupt?\n", dev->name);
1461 }
1462 /* re-enable transmit */
1463 SMC_SELECT_BANK(0);
1464 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1465 SMC_SELECT_BANK(2);
1466
1467 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1468
1469 /* one less packet waiting for me */
1470 smc->packets_waiting--;
1471
1472 outw(saved_packet, ioaddr + PNR_ARR);
1473 return;
1474 }
1475
1476 /*====================================================================*/
1477
1478 static void smc_eph_irq(struct net_device *dev)
1479 {
1480 struct smc_private *smc = netdev_priv(dev);
1481 kio_addr_t ioaddr = dev->base_addr;
1482 u_short card_stats, ephs;
1483
1484 SMC_SELECT_BANK(0);
1485 ephs = inw(ioaddr + EPH);
1486 DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
1487 " %4.4x.\n", dev->name, ephs);
1488 /* Could be a counter roll-over warning: update stats. */
1489 card_stats = inw(ioaddr + COUNTER);
1490 /* single collisions */
1491 smc->stats.collisions += card_stats & 0xF;
1492 card_stats >>= 4;
1493 /* multiple collisions */
1494 smc->stats.collisions += card_stats & 0xF;
1495 #if 0 /* These are for when linux supports these statistics */
1496 card_stats >>= 4; /* deferred */
1497 card_stats >>= 4; /* excess deferred */
1498 #endif
1499 /* If we had a transmit error we must re-enable the transmitter. */
1500 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1501
1502 /* Clear a link error interrupt. */
1503 SMC_SELECT_BANK(1);
1504 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1505 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1506 ioaddr + CONTROL);
1507 SMC_SELECT_BANK(2);
1508 }
1509
1510 /*====================================================================*/
1511
1512 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1513 {
1514 struct net_device *dev = dev_id;
1515 struct smc_private *smc = netdev_priv(dev);
1516 kio_addr_t ioaddr;
1517 u_short saved_bank, saved_pointer, mask, status;
1518 unsigned int handled = 1;
1519 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1520
1521 if (!netif_device_present(dev))
1522 return IRQ_NONE;
1523
1524 ioaddr = dev->base_addr;
1525
1526 DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1527 irq, ioaddr);
1528
1529 spin_lock(&smc->lock);
1530 smc->watchdog = 0;
1531 saved_bank = inw(ioaddr + BANK_SELECT);
1532 if ((saved_bank & 0xff00) != 0x3300) {
1533 /* The device does not exist -- the card could be off-line, or
1534 maybe it has been ejected. */
1535 DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
1536 "/ejected device.\n", dev->name, irq);
1537 handled = 0;
1538 goto irq_done;
1539 }
1540
1541 SMC_SELECT_BANK(2);
1542 saved_pointer = inw(ioaddr + POINTER);
1543 mask = inw(ioaddr + INTERRUPT) >> 8;
1544 /* clear all interrupts */
1545 outw(0, ioaddr + INTERRUPT);
1546
1547 do { /* read the status flag, and mask it */
1548 status = inw(ioaddr + INTERRUPT) & 0xff;
1549 DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1550 status, mask);
1551 if ((status & mask) == 0) {
1552 if (bogus_cnt == INTR_WORK)
1553 handled = 0;
1554 break;
1555 }
1556 if (status & IM_RCV_INT) {
1557 /* Got a packet(s). */
1558 smc_rx(dev);
1559 }
1560 if (status & IM_TX_INT) {
1561 smc_tx_err(dev);
1562 outw(IM_TX_INT, ioaddr + INTERRUPT);
1563 }
1564 status &= mask;
1565 if (status & IM_TX_EMPTY_INT) {
1566 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1567 mask &= ~IM_TX_EMPTY_INT;
1568 smc->stats.tx_packets += smc->packets_waiting;
1569 smc->packets_waiting = 0;
1570 }
1571 if (status & IM_ALLOC_INT) {
1572 /* Clear this interrupt so it doesn't happen again */
1573 mask &= ~IM_ALLOC_INT;
1574
1575 smc_hardware_send_packet(dev);
1576
1577 /* enable xmit interrupts based on this */
1578 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1579
1580 /* and let the card send more packets to me */
1581 netif_wake_queue(dev);
1582 }
1583 if (status & IM_RX_OVRN_INT) {
1584 smc->stats.rx_errors++;
1585 smc->stats.rx_fifo_errors++;
1586 if (smc->duplex)
1587 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1588 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1589 }
1590 if (status & IM_EPH_INT)
1591 smc_eph_irq(dev);
1592 } while (--bogus_cnt);
1593
1594 DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
1595 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1596
1597 /* restore state register */
1598 outw((mask<<8), ioaddr + INTERRUPT);
1599 outw(saved_pointer, ioaddr + POINTER);
1600 SMC_SELECT_BANK(saved_bank);
1601
1602 DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1603
1604 irq_done:
1605
1606 if ((smc->manfid == MANFID_OSITECH) &&
1607 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1608 /* Retrigger interrupt if needed */
1609 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1610 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1611 }
1612 if (smc->manfid == MANFID_MOTOROLA) {
1613 u_char cor;
1614 cor = readb(smc->base + MOT_UART + CISREG_COR);
1615 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1616 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1617 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1618 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1619 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1620 }
1621 #ifdef DOES_NOT_WORK
1622 if (smc->base != NULL) { /* Megahertz MFC's */
1623 readb(smc->base+MEGAHERTZ_ISR);
1624 readb(smc->base+MEGAHERTZ_ISR);
1625 }
1626 #endif
1627 spin_unlock(&smc->lock);
1628 return IRQ_RETVAL(handled);
1629 }
1630
1631 /*====================================================================*/
1632
1633 static void smc_rx(struct net_device *dev)
1634 {
1635 struct smc_private *smc = netdev_priv(dev);
1636 kio_addr_t ioaddr = dev->base_addr;
1637 int rx_status;
1638 int packet_length; /* Caution: not frame length, rather words
1639 to transfer from the chip. */
1640
1641 /* Assertion: we are in Window 2. */
1642
1643 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1644 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1645 dev->name);
1646 return;
1647 }
1648
1649 /* Reset the read pointer, and read the status and packet length. */
1650 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1651 rx_status = inw(ioaddr + DATA_1);
1652 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1653
1654 DEBUG(2, "%s: Receive status %4.4x length %d.\n",
1655 dev->name, rx_status, packet_length);
1656
1657 if (!(rx_status & RS_ERRORS)) {
1658 /* do stuff to make a new packet */
1659 struct sk_buff *skb;
1660
1661 /* Note: packet_length adds 5 or 6 extra bytes here! */
1662 skb = dev_alloc_skb(packet_length+2);
1663
1664 if (skb == NULL) {
1665 DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
1666 smc->stats.rx_dropped++;
1667 outw(MC_RELEASE, ioaddr + MMU_CMD);
1668 return;
1669 }
1670
1671 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1672 skb_reserve(skb, 2);
1673 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1674 (packet_length+1)>>1);
1675 skb->protocol = eth_type_trans(skb, dev);
1676
1677 netif_rx(skb);
1678 dev->last_rx = jiffies;
1679 smc->stats.rx_packets++;
1680 smc->stats.rx_bytes += packet_length;
1681 if (rx_status & RS_MULTICAST)
1682 smc->stats.multicast++;
1683 } else {
1684 /* error ... */
1685 smc->stats.rx_errors++;
1686
1687 if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
1688 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1689 smc->stats.rx_length_errors++;
1690 if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
1691 }
1692 /* Let the MMU free the memory of this packet. */
1693 outw(MC_RELEASE, ioaddr + MMU_CMD);
1694
1695 return;
1696 }
1697
1698 /*====================================================================*/
1699
1700 static struct net_device_stats *smc_get_stats(struct net_device *dev)
1701 {
1702 struct smc_private *smc = netdev_priv(dev);
1703 /* Nothing to update - the 91c92 is a pretty primative chip. */
1704 return &smc->stats;
1705 }
1706
1707 /*======================================================================
1708
1709 Calculate values for the hardware multicast filter hash table.
1710
1711 ======================================================================*/
1712
1713 static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
1714 u_char *multicast_table)
1715 {
1716 struct dev_mc_list *mc_addr;
1717
1718 for (mc_addr = addrs; mc_addr && count-- > 0; mc_addr = mc_addr->next) {
1719 u_int position = ether_crc(6, mc_addr->dmi_addr);
1720 #ifndef final_version /* Verify multicast address. */
1721 if ((mc_addr->dmi_addr[0] & 1) == 0)
1722 continue;
1723 #endif
1724 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1725 }
1726 }
1727
1728 /*======================================================================
1729
1730 Set the receive mode.
1731
1732 This routine is used by both the protocol level to notify us of
1733 promiscuous/multicast mode changes, and by the open/reset code to
1734 initialize the Rx registers. We always set the multicast list and
1735 leave the receiver running.
1736
1737 ======================================================================*/
1738
1739 static void set_rx_mode(struct net_device *dev)
1740 {
1741 kio_addr_t ioaddr = dev->base_addr;
1742 struct smc_private *smc = netdev_priv(dev);
1743 u_int multicast_table[ 2 ] = { 0, };
1744 unsigned long flags;
1745 u_short rx_cfg_setting;
1746
1747 if (dev->flags & IFF_PROMISC) {
1748 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1749 } else if (dev->flags & IFF_ALLMULTI)
1750 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1751 else {
1752 if (dev->mc_count) {
1753 fill_multicast_tbl(dev->mc_count, dev->mc_list,
1754 (u_char *)multicast_table);
1755 }
1756 rx_cfg_setting = RxStripCRC | RxEnable;
1757 }
1758
1759 /* Load MC table and Rx setting into the chip without interrupts. */
1760 spin_lock_irqsave(&smc->lock, flags);
1761 SMC_SELECT_BANK(3);
1762 outl(multicast_table[0], ioaddr + MULTICAST0);
1763 outl(multicast_table[1], ioaddr + MULTICAST4);
1764 SMC_SELECT_BANK(0);
1765 outw(rx_cfg_setting, ioaddr + RCR);
1766 SMC_SELECT_BANK(2);
1767 spin_unlock_irqrestore(&smc->lock, flags);
1768
1769 return;
1770 }
1771
1772 /*======================================================================
1773
1774 Senses when a card's config changes. Here, it's coax or TP.
1775
1776 ======================================================================*/
1777
1778 static int s9k_config(struct net_device *dev, struct ifmap *map)
1779 {
1780 struct smc_private *smc = netdev_priv(dev);
1781 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1782 if (smc->cfg & CFG_MII_SELECT)
1783 return -EOPNOTSUPP;
1784 else if (map->port > 2)
1785 return -EINVAL;
1786 dev->if_port = map->port;
1787 printk(KERN_INFO "%s: switched to %s port\n",
1788 dev->name, if_names[dev->if_port]);
1789 smc_reset(dev);
1790 }
1791 return 0;
1792 }
1793
1794 /*======================================================================
1795
1796 Reset the chip, reloading every register that might be corrupted.
1797
1798 ======================================================================*/
1799
1800 /*
1801 Set transceiver type, perhaps to something other than what the user
1802 specified in dev->if_port.
1803 */
1804 static void smc_set_xcvr(struct net_device *dev, int if_port)
1805 {
1806 struct smc_private *smc = netdev_priv(dev);
1807 kio_addr_t ioaddr = dev->base_addr;
1808 u_short saved_bank;
1809
1810 saved_bank = inw(ioaddr + BANK_SELECT);
1811 SMC_SELECT_BANK(1);
1812 if (if_port == 2) {
1813 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1814 if ((smc->manfid == MANFID_OSITECH) &&
1815 (smc->cardid != PRODID_OSITECH_SEVEN))
1816 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1817 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1818 } else {
1819 outw(smc->cfg, ioaddr + CONFIG);
1820 if ((smc->manfid == MANFID_OSITECH) &&
1821 (smc->cardid != PRODID_OSITECH_SEVEN))
1822 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1823 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1824 }
1825 SMC_SELECT_BANK(saved_bank);
1826 }
1827
1828 static void smc_reset(struct net_device *dev)
1829 {
1830 kio_addr_t ioaddr = dev->base_addr;
1831 struct smc_private *smc = netdev_priv(dev);
1832 int i;
1833
1834 DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
1835
1836 /* The first interaction must be a write to bring the chip out
1837 of sleep mode. */
1838 SMC_SELECT_BANK(0);
1839 /* Reset the chip. */
1840 outw(RCR_SOFTRESET, ioaddr + RCR);
1841 udelay(10);
1842
1843 /* Clear the transmit and receive configuration registers. */
1844 outw(RCR_CLEAR, ioaddr + RCR);
1845 outw(TCR_CLEAR, ioaddr + TCR);
1846
1847 /* Set the Window 1 control, configuration and station addr registers.
1848 No point in writing the I/O base register ;-> */
1849 SMC_SELECT_BANK(1);
1850 /* Automatically release successfully transmitted packets,
1851 Accept link errors, counter and Tx error interrupts. */
1852 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1853 ioaddr + CONTROL);
1854 smc_set_xcvr(dev, dev->if_port);
1855 if ((smc->manfid == MANFID_OSITECH) &&
1856 (smc->cardid != PRODID_OSITECH_SEVEN))
1857 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1858 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1859 ioaddr - 0x10 + OSITECH_AUI_PWR);
1860
1861 /* Fill in the physical address. The databook is wrong about the order! */
1862 for (i = 0; i < 6; i += 2)
1863 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1864 ioaddr + ADDR0 + i);
1865
1866 /* Reset the MMU */
1867 SMC_SELECT_BANK(2);
1868 outw(MC_RESET, ioaddr + MMU_CMD);
1869 outw(0, ioaddr + INTERRUPT);
1870
1871 /* Re-enable the chip. */
1872 SMC_SELECT_BANK(0);
1873 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1874 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1875 set_rx_mode(dev);
1876
1877 if (smc->cfg & CFG_MII_SELECT) {
1878 SMC_SELECT_BANK(3);
1879
1880 /* Reset MII */
1881 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1882
1883 /* Advertise 100F, 100H, 10F, 10H */
1884 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1885
1886 /* Restart MII autonegotiation */
1887 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1888 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1889 }
1890
1891 /* Enable interrupts. */
1892 SMC_SELECT_BANK(2);
1893 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1894 ioaddr + INTERRUPT);
1895 }
1896
1897 /*======================================================================
1898
1899 Media selection timer routine
1900
1901 ======================================================================*/
1902
1903 static void media_check(u_long arg)
1904 {
1905 struct net_device *dev = (struct net_device *) arg;
1906 struct smc_private *smc = netdev_priv(dev);
1907 kio_addr_t ioaddr = dev->base_addr;
1908 u_short i, media, saved_bank;
1909 u_short link;
1910 unsigned long flags;
1911
1912 spin_lock_irqsave(&smc->lock, flags);
1913
1914 saved_bank = inw(ioaddr + BANK_SELECT);
1915
1916 if (!netif_device_present(dev))
1917 goto reschedule;
1918
1919 SMC_SELECT_BANK(2);
1920
1921 /* need MC_RESET to keep the memory consistent. errata? */
1922 if (smc->rx_ovrn) {
1923 outw(MC_RESET, ioaddr + MMU_CMD);
1924 smc->rx_ovrn = 0;
1925 }
1926 i = inw(ioaddr + INTERRUPT);
1927 SMC_SELECT_BANK(0);
1928 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1929 SMC_SELECT_BANK(1);
1930 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1931
1932 /* Check for pending interrupt with watchdog flag set: with
1933 this, we can limp along even if the interrupt is blocked */
1934 if (smc->watchdog++ && ((i>>8) & i)) {
1935 if (!smc->fast_poll)
1936 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1937 smc_interrupt(dev->irq, dev);
1938 smc->fast_poll = HZ;
1939 }
1940 if (smc->fast_poll) {
1941 smc->fast_poll--;
1942 smc->media.expires = jiffies + HZ/100;
1943 add_timer(&smc->media);
1944 SMC_SELECT_BANK(saved_bank);
1945 spin_unlock_irqrestore(&smc->lock, flags);
1946 return;
1947 }
1948
1949 if (smc->cfg & CFG_MII_SELECT) {
1950 if (smc->mii_if.phy_id < 0)
1951 goto reschedule;
1952
1953 SMC_SELECT_BANK(3);
1954 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1955 if (!link || (link == 0xffff)) {
1956 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1957 smc->mii_if.phy_id = -1;
1958 goto reschedule;
1959 }
1960
1961 link &= 0x0004;
1962 if (link != smc->link_status) {
1963 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1964 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1965 (link) ? "found" : "lost");
1966 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1967 ? TCR_FDUPLX : 0);
1968 if (link) {
1969 printk(KERN_INFO "%s: autonegotiation complete: "
1970 "%sbaseT-%cD selected\n", dev->name,
1971 ((p & 0x0180) ? "100" : "10"),
1972 (smc->duplex ? 'F' : 'H'));
1973 }
1974 SMC_SELECT_BANK(0);
1975 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1976 smc->link_status = link;
1977 }
1978 goto reschedule;
1979 }
1980
1981 /* Ignore collisions unless we've had no rx's recently */
1982 if (time_after(jiffies, dev->last_rx + HZ)) {
1983 if (smc->tx_err || (smc->media_status & EPH_16COL))
1984 media |= EPH_16COL;
1985 }
1986 smc->tx_err = 0;
1987
1988 if (media != smc->media_status) {
1989 if ((media & smc->media_status & 1) &&
1990 ((smc->media_status ^ media) & EPH_LINK_OK))
1991 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1992 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1993 else if ((media & smc->media_status & 2) &&
1994 ((smc->media_status ^ media) & EPH_16COL))
1995 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1996 (media & EPH_16COL ? "problem" : "ok"));
1997 if (dev->if_port == 0) {
1998 if (media & 1) {
1999 if (media & EPH_LINK_OK)
2000 printk(KERN_INFO "%s: flipped to 10baseT\n",
2001 dev->name);
2002 else
2003 smc_set_xcvr(dev, 2);
2004 } else {
2005 if (media & EPH_16COL)
2006 smc_set_xcvr(dev, 1);
2007 else
2008 printk(KERN_INFO "%s: flipped to 10base2\n",
2009 dev->name);
2010 }
2011 }
2012 smc->media_status = media;
2013 }
2014
2015 reschedule:
2016 smc->media.expires = jiffies + HZ;
2017 add_timer(&smc->media);
2018 SMC_SELECT_BANK(saved_bank);
2019 spin_unlock_irqrestore(&smc->lock, flags);
2020 }
2021
2022 static int smc_link_ok(struct net_device *dev)
2023 {
2024 kio_addr_t ioaddr = dev->base_addr;
2025 struct smc_private *smc = netdev_priv(dev);
2026
2027 if (smc->cfg & CFG_MII_SELECT) {
2028 return mii_link_ok(&smc->mii_if);
2029 } else {
2030 SMC_SELECT_BANK(0);
2031 return inw(ioaddr + EPH) & EPH_LINK_OK;
2032 }
2033 }
2034
2035 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2036 {
2037 u16 tmp;
2038 kio_addr_t ioaddr = dev->base_addr;
2039
2040 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
2041 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
2042
2043 SMC_SELECT_BANK(1);
2044 tmp = inw(ioaddr + CONFIG);
2045 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
2046 ecmd->transceiver = XCVR_INTERNAL;
2047 ecmd->speed = SPEED_10;
2048 ecmd->phy_address = ioaddr + MGMT;
2049
2050 SMC_SELECT_BANK(0);
2051 tmp = inw(ioaddr + TCR);
2052 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
2053
2054 return 0;
2055 }
2056
2057 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2058 {
2059 u16 tmp;
2060 kio_addr_t ioaddr = dev->base_addr;
2061
2062 if (ecmd->speed != SPEED_10)
2063 return -EINVAL;
2064 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
2065 return -EINVAL;
2066 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
2067 return -EINVAL;
2068 if (ecmd->transceiver != XCVR_INTERNAL)
2069 return -EINVAL;
2070
2071 if (ecmd->port == PORT_AUI)
2072 smc_set_xcvr(dev, 1);
2073 else
2074 smc_set_xcvr(dev, 0);
2075
2076 SMC_SELECT_BANK(0);
2077 tmp = inw(ioaddr + TCR);
2078 if (ecmd->duplex == DUPLEX_FULL)
2079 tmp |= TCR_FDUPLX;
2080 else
2081 tmp &= ~TCR_FDUPLX;
2082 outw(tmp, ioaddr + TCR);
2083
2084 return 0;
2085 }
2086
2087 static int check_if_running(struct net_device *dev)
2088 {
2089 if (!netif_running(dev))
2090 return -EINVAL;
2091 return 0;
2092 }
2093
2094 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2095 {
2096 strcpy(info->driver, DRV_NAME);
2097 strcpy(info->version, DRV_VERSION);
2098 }
2099
2100 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2101 {
2102 struct smc_private *smc = netdev_priv(dev);
2103 kio_addr_t ioaddr = dev->base_addr;
2104 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2105 int ret;
2106
2107 spin_lock_irq(&smc->lock);
2108 SMC_SELECT_BANK(3);
2109 if (smc->cfg & CFG_MII_SELECT)
2110 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
2111 else
2112 ret = smc_netdev_get_ecmd(dev, ecmd);
2113 SMC_SELECT_BANK(saved_bank);
2114 spin_unlock_irq(&smc->lock);
2115 return ret;
2116 }
2117
2118 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2119 {
2120 struct smc_private *smc = netdev_priv(dev);
2121 kio_addr_t ioaddr = dev->base_addr;
2122 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2123 int ret;
2124
2125 spin_lock_irq(&smc->lock);
2126 SMC_SELECT_BANK(3);
2127 if (smc->cfg & CFG_MII_SELECT)
2128 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2129 else
2130 ret = smc_netdev_set_ecmd(dev, ecmd);
2131 SMC_SELECT_BANK(saved_bank);
2132 spin_unlock_irq(&smc->lock);
2133 return ret;
2134 }
2135
2136 static u32 smc_get_link(struct net_device *dev)
2137 {
2138 struct smc_private *smc = netdev_priv(dev);
2139 kio_addr_t ioaddr = dev->base_addr;
2140 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2141 u32 ret;
2142
2143 spin_lock_irq(&smc->lock);
2144 SMC_SELECT_BANK(3);
2145 ret = smc_link_ok(dev);
2146 SMC_SELECT_BANK(saved_bank);
2147 spin_unlock_irq(&smc->lock);
2148 return ret;
2149 }
2150
2151 #ifdef PCMCIA_DEBUG
2152 static u32 smc_get_msglevel(struct net_device *dev)
2153 {
2154 return pc_debug;
2155 }
2156
2157 static void smc_set_msglevel(struct net_device *dev, u32 val)
2158 {
2159 pc_debug = val;
2160 }
2161 #endif
2162
2163 static int smc_nway_reset(struct net_device *dev)
2164 {
2165 struct smc_private *smc = netdev_priv(dev);
2166 if (smc->cfg & CFG_MII_SELECT) {
2167 kio_addr_t ioaddr = dev->base_addr;
2168 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2169 int res;
2170
2171 SMC_SELECT_BANK(3);
2172 res = mii_nway_restart(&smc->mii_if);
2173 SMC_SELECT_BANK(saved_bank);
2174
2175 return res;
2176 } else
2177 return -EOPNOTSUPP;
2178 }
2179
2180 static const struct ethtool_ops ethtool_ops = {
2181 .begin = check_if_running,
2182 .get_drvinfo = smc_get_drvinfo,
2183 .get_settings = smc_get_settings,
2184 .set_settings = smc_set_settings,
2185 .get_link = smc_get_link,
2186 #ifdef PCMCIA_DEBUG
2187 .get_msglevel = smc_get_msglevel,
2188 .set_msglevel = smc_set_msglevel,
2189 #endif
2190 .nway_reset = smc_nway_reset,
2191 };
2192
2193 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2194 {
2195 struct smc_private *smc = netdev_priv(dev);
2196 struct mii_ioctl_data *mii = if_mii(rq);
2197 int rc = 0;
2198 u16 saved_bank;
2199 kio_addr_t ioaddr = dev->base_addr;
2200
2201 if (!netif_running(dev))
2202 return -EINVAL;
2203
2204 spin_lock_irq(&smc->lock);
2205 saved_bank = inw(ioaddr + BANK_SELECT);
2206 SMC_SELECT_BANK(3);
2207 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2208 SMC_SELECT_BANK(saved_bank);
2209 spin_unlock_irq(&smc->lock);
2210 return rc;
2211 }
2212
2213 static struct pcmcia_device_id smc91c92_ids[] = {
2214 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2215 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2216 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2217 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2218 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2219 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2220 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2221 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2222 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2223 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2224 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2225 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2226 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2227 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2228 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2229 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2230 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2231 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2232 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2233 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2234 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2235 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2236 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2237 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2238 /* These conflict with other cards! */
2239 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2240 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2241 PCMCIA_DEVICE_NULL,
2242 };
2243 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2244
2245 static struct pcmcia_driver smc91c92_cs_driver = {
2246 .owner = THIS_MODULE,
2247 .drv = {
2248 .name = "smc91c92_cs",
2249 },
2250 .probe = smc91c92_probe,
2251 .remove = smc91c92_detach,
2252 .id_table = smc91c92_ids,
2253 .suspend = smc91c92_suspend,
2254 .resume = smc91c92_resume,
2255 };
2256
2257 static int __init init_smc91c92_cs(void)
2258 {
2259 return pcmcia_register_driver(&smc91c92_cs_driver);
2260 }
2261
2262 static void __exit exit_smc91c92_cs(void)
2263 {
2264 pcmcia_unregister_driver(&smc91c92_cs_driver);
2265 }
2266
2267 module_init(init_smc91c92_cs);
2268 module_exit(exit_smc91c92_cs);
Linus' kernel tree