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Committer: Michael Beasley <mike@snafu.setup>
[mikesnafu-overlay.git] / drivers / net / pcmcia / smc91c92_cs.c
blob250eb1954c342d7ecf3c77e7ef62978c18d6a5b8
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(unsigned int 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 tuple->DesiredTuple = CISTPL_VERS_1;
563 if (first_tuple(link, tuple, parse) != CS_SUCCESS) {
564 rc = -1;
565 goto free_cfg_mem;
566 }
567 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
568 if (next_tuple(link, tuple, parse) != CS_SUCCESS)
569 first_tuple(link, tuple, parse);
570 if (parse->version_1.ns > 3) {
571 station_addr = parse->version_1.str + parse->version_1.ofs[3];
572 if (cvt_ascii_address(dev, station_addr) == 0) {
573 rc = 0;
574 goto free_cfg_mem;
575 }
576 }
577
578 /* Another possibility: for the EM3288, in a special tuple */
579 tuple->DesiredTuple = 0x81;
580 if (pcmcia_get_first_tuple(link, tuple) != CS_SUCCESS) {
581 rc = -1;
582 goto free_cfg_mem;
583 }
584 if (pcmcia_get_tuple_data(link, tuple) != CS_SUCCESS) {
585 rc = -1;
586 goto free_cfg_mem;
587 }
588 buf[12] = '\0';
589 if (cvt_ascii_address(dev, buf) == 0) {
590 rc = 0;
591 goto free_cfg_mem;
592 }
593 rc = -1;
594 free_cfg_mem:
595 kfree(cfg_mem);
596 return rc;
597 }
598
599 /*======================================================================
600
601 Configuration stuff for the Motorola Mariner
602
603 mot_config() writes directly to the Mariner configuration
604 registers because the CIS is just bogus.
605
606 ======================================================================*/
607
608 static void mot_config(struct pcmcia_device *link)
609 {
610 struct net_device *dev = link->priv;
611 struct smc_private *smc = netdev_priv(dev);
612 unsigned int ioaddr = dev->base_addr;
613 unsigned int iouart = link->io.BasePort2;
614
615 /* Set UART base address and force map with COR bit 1 */
616 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
617 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
618 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
619
620 /* Set SMC base address and force map with COR bit 1 */
621 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
622 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
623 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
624
625 /* Wait for things to settle down */
626 mdelay(100);
627 }
628
629 static int mot_setup(struct pcmcia_device *link)
630 {
631 struct net_device *dev = link->priv;
632 unsigned int ioaddr = dev->base_addr;
633 int i, wait, loop;
634 u_int addr;
635
636 /* Read Ethernet address from Serial EEPROM */
637
638 for (i = 0; i < 3; i++) {
639 SMC_SELECT_BANK(2);
640 outw(MOT_EEPROM + i, ioaddr + POINTER);
641 SMC_SELECT_BANK(1);
642 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
643
644 for (loop = wait = 0; loop < 200; loop++) {
645 udelay(10);
646 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
647 if (wait == 0) break;
648 }
649
650 if (wait)
651 return -1;
652
653 addr = inw(ioaddr + GENERAL);
654 dev->dev_addr[2*i] = addr & 0xff;
655 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
656 }
657
658 return 0;
659 }
660
661 /*====================================================================*/
662
663 static int smc_config(struct pcmcia_device *link)
664 {
665 struct net_device *dev = link->priv;
666 struct smc_cfg_mem *cfg_mem;
667 tuple_t *tuple;
668 cisparse_t *parse;
669 cistpl_cftable_entry_t *cf;
670 u_char *buf;
671 int i;
672
673 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
674 if (!cfg_mem)
675 return CS_OUT_OF_RESOURCE;
676
677 tuple = &cfg_mem->tuple;
678 parse = &cfg_mem->parse;
679 cf = &parse->cftable_entry;
680 buf = cfg_mem->buf;
681
682 tuple->Attributes = tuple->TupleOffset = 0;
683 tuple->TupleData = (cisdata_t *)buf;
684 tuple->TupleDataMax = 255;
685 tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY;
686
687 link->io.NumPorts1 = 16;
688 i = first_tuple(link, tuple, parse);
689 while (i != CS_NO_MORE_ITEMS) {
690 if (i == CS_SUCCESS) {
691 link->conf.ConfigIndex = cf->index;
692 link->io.BasePort1 = cf->io.win[0].base;
693 link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
694 i = pcmcia_request_io(link, &link->io);
695 if (i == CS_SUCCESS) break;
696 }
697 i = next_tuple(link, tuple, parse);
698 }
699 if (i == CS_SUCCESS)
700 dev->base_addr = link->io.BasePort1;
701
702 kfree(cfg_mem);
703 return i;
704 }
705
706 static int smc_setup(struct pcmcia_device *link)
707 {
708 struct net_device *dev = link->priv;
709 struct smc_cfg_mem *cfg_mem;
710 tuple_t *tuple;
711 cisparse_t *parse;
712 cistpl_lan_node_id_t *node_id;
713 u_char *buf, *station_addr;
714 int i, rc;
715
716 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
717 if (!cfg_mem)
718 return CS_OUT_OF_RESOURCE;
719
720 tuple = &cfg_mem->tuple;
721 parse = &cfg_mem->parse;
722 buf = cfg_mem->buf;
723
724 tuple->Attributes = tuple->TupleOffset = 0;
725 tuple->TupleData = (cisdata_t *)buf;
726 tuple->TupleDataMax = 255;
727
728 /* Check for a LAN function extension tuple */
729 tuple->DesiredTuple = CISTPL_FUNCE;
730 i = first_tuple(link, tuple, parse);
731 while (i == CS_SUCCESS) {
732 if (parse->funce.type == CISTPL_FUNCE_LAN_NODE_ID)
733 break;
734 i = next_tuple(link, tuple, parse);
735 }
736 if (i == CS_SUCCESS) {
737 node_id = (cistpl_lan_node_id_t *)parse->funce.data;
738 if (node_id->nb == 6) {
739 for (i = 0; i < 6; i++)
740 dev->dev_addr[i] = node_id->id[i];
741 rc = 0;
742 goto free_cfg_mem;
743 }
744 }
745 /* Try the third string in the Version 1 Version/ID tuple. */
746 if (link->prod_id[2]) {
747 station_addr = link->prod_id[2];
748 if (cvt_ascii_address(dev, station_addr) == 0) {
749 rc = 0;
750 goto free_cfg_mem;
751 }
752 }
753
754 rc = -1;
755 free_cfg_mem:
756 kfree(cfg_mem);
757 return rc;
758 }
759
760 /*====================================================================*/
761
762 static int osi_config(struct pcmcia_device *link)
763 {
764 struct net_device *dev = link->priv;
765 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
766 int i, j;
767
768 link->conf.Attributes |= CONF_ENABLE_SPKR;
769 link->conf.Status = CCSR_AUDIO_ENA;
770 link->irq.Attributes =
771 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
772 link->io.NumPorts1 = 64;
773 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
774 link->io.NumPorts2 = 8;
775 link->io.IOAddrLines = 16;
776
777 /* Enable Hard Decode, LAN, Modem */
778 link->conf.ConfigIndex = 0x23;
779
780 for (i = j = 0; j < 4; j++) {
781 link->io.BasePort2 = com[j];
782 i = pcmcia_request_io(link, &link->io);
783 if (i == CS_SUCCESS) break;
784 }
785 if (i != CS_SUCCESS) {
786 /* Fallback: turn off hard decode */
787 link->conf.ConfigIndex = 0x03;
788 link->io.NumPorts2 = 0;
789 i = pcmcia_request_io(link, &link->io);
790 }
791 dev->base_addr = link->io.BasePort1 + 0x10;
792 return i;
793 }
794
795 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
796 {
797 struct net_device *dev = link->priv;
798 struct smc_cfg_mem *cfg_mem;
799 tuple_t *tuple;
800 u_char *buf;
801 int i, rc;
802
803 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
804 if (!cfg_mem)
805 return -1;
806
807 tuple = &cfg_mem->tuple;
808 buf = cfg_mem->buf;
809
810 tuple->Attributes = TUPLE_RETURN_COMMON;
811 tuple->TupleData = (cisdata_t *)buf;
812 tuple->TupleDataMax = 255;
813 tuple->TupleOffset = 0;
814
815 /* Read the station address from tuple 0x90, subtuple 0x04 */
816 tuple->DesiredTuple = 0x90;
817 i = pcmcia_get_first_tuple(link, tuple);
818 while (i == CS_SUCCESS) {
819 i = pcmcia_get_tuple_data(link, tuple);
820 if ((i != CS_SUCCESS) || (buf[0] == 0x04))
821 break;
822 i = pcmcia_get_next_tuple(link, tuple);
823 }
824 if (i != CS_SUCCESS) {
825 rc = -1;
826 goto free_cfg_mem;
827 }
828 for (i = 0; i < 6; i++)
829 dev->dev_addr[i] = buf[i+2];
830
831 if (((manfid == MANFID_OSITECH) &&
832 (cardid == PRODID_OSITECH_SEVEN)) ||
833 ((manfid == MANFID_PSION) &&
834 (cardid == PRODID_PSION_NET100))) {
835 /* Download the Seven of Diamonds firmware */
836 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
837 outb(__Xilinx7OD[i], link->io.BasePort1+2);
838 udelay(50);
839 }
840 } else if (manfid == MANFID_OSITECH) {
841 /* Make sure both functions are powered up */
842 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
843 /* Now, turn on the interrupt for both card functions */
844 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
845 DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
846 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
847 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
848 }
849 rc = 0;
850 free_cfg_mem:
851 kfree(cfg_mem);
852 return rc;
853 }
854
855 static int smc91c92_suspend(struct pcmcia_device *link)
856 {
857 struct net_device *dev = link->priv;
858
859 if (link->open)
860 netif_device_detach(dev);
861
862 return 0;
863 }
864
865 static int smc91c92_resume(struct pcmcia_device *link)
866 {
867 struct net_device *dev = link->priv;
868 struct smc_private *smc = netdev_priv(dev);
869 int i;
870
871 if ((smc->manfid == MANFID_MEGAHERTZ) &&
872 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
873 mhz_3288_power(link);
874 if (smc->manfid == MANFID_MOTOROLA)
875 mot_config(link);
876 if ((smc->manfid == MANFID_OSITECH) &&
877 (smc->cardid != PRODID_OSITECH_SEVEN)) {
878 /* Power up the card and enable interrupts */
879 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
880 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
881 }
882 if (((smc->manfid == MANFID_OSITECH) &&
883 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
884 ((smc->manfid == MANFID_PSION) &&
885 (smc->cardid == PRODID_PSION_NET100))) {
886 /* Download the Seven of Diamonds firmware */
887 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
888 outb(__Xilinx7OD[i], link->io.BasePort1+2);
889 udelay(50);
890 }
891 }
892 if (link->open) {
893 smc_reset(dev);
894 netif_device_attach(dev);
895 }
896
897 return 0;
898 }
899
900
901 /*======================================================================
902
903 This verifies that the chip is some SMC91cXX variant, and returns
904 the revision code if successful. Otherwise, it returns -ENODEV.
905
906 ======================================================================*/
907
908 static int check_sig(struct pcmcia_device *link)
909 {
910 struct net_device *dev = link->priv;
911 unsigned int ioaddr = dev->base_addr;
912 int width;
913 u_short s;
914
915 SMC_SELECT_BANK(1);
916 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
917 /* Try powering up the chip */
918 outw(0, ioaddr + CONTROL);
919 mdelay(55);
920 }
921
922 /* Try setting bus width */
923 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
924 s = inb(ioaddr + CONFIG);
925 if (width)
926 s |= CFG_16BIT;
927 else
928 s &= ~CFG_16BIT;
929 outb(s, ioaddr + CONFIG);
930
931 /* Check Base Address Register to make sure bus width is OK */
932 s = inw(ioaddr + BASE_ADDR);
933 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
934 ((s >> 8) != (s & 0xff))) {
935 SMC_SELECT_BANK(3);
936 s = inw(ioaddr + REVISION);
937 return (s & 0xff);
938 }
939
940 if (width) {
941 modconf_t mod = {
942 .Attributes = CONF_IO_CHANGE_WIDTH,
943 };
944 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
945
946 smc91c92_suspend(link);
947 pcmcia_modify_configuration(link, &mod);
948 smc91c92_resume(link);
949 return check_sig(link);
950 }
951 return -ENODEV;
952 }
953
954 /*======================================================================
955
956 smc91c92_config() is scheduled to run after a CARD_INSERTION event
957 is received, to configure the PCMCIA socket, and to make the
958 ethernet device available to the system.
959
960 ======================================================================*/
961
962 #define CS_EXIT_TEST(ret, svc, label) \
963 if (ret != CS_SUCCESS) { cs_error(link, svc, ret); goto label; }
964
965 static int smc91c92_config(struct pcmcia_device *link)
966 {
967 struct net_device *dev = link->priv;
968 struct smc_private *smc = netdev_priv(dev);
969 char *name;
970 int i, j, rev;
971 unsigned int ioaddr;
972 u_long mir;
973 DECLARE_MAC_BUF(mac);
974
975 DEBUG(0, "smc91c92_config(0x%p)\n", link);
976
977 smc->manfid = link->manf_id;
978 smc->cardid = link->card_id;
979
980 if ((smc->manfid == MANFID_OSITECH) &&
981 (smc->cardid != PRODID_OSITECH_SEVEN)) {
982 i = osi_config(link);
983 } else if ((smc->manfid == MANFID_MOTOROLA) ||
984 ((smc->manfid == MANFID_MEGAHERTZ) &&
985 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
986 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
987 i = mhz_mfc_config(link);
988 } else {
989 i = smc_config(link);
990 }
991 CS_EXIT_TEST(i, RequestIO, config_failed);
992
993 i = pcmcia_request_irq(link, &link->irq);
994 CS_EXIT_TEST(i, RequestIRQ, config_failed);
995 i = pcmcia_request_configuration(link, &link->conf);
996 CS_EXIT_TEST(i, RequestConfiguration, config_failed);
997
998 if (smc->manfid == MANFID_MOTOROLA)
999 mot_config(link);
1000
1001 dev->irq = link->irq.AssignedIRQ;
1002
1003 if ((if_port >= 0) && (if_port <= 2))
1004 dev->if_port = if_port;
1005 else
1006 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
1007
1008 switch (smc->manfid) {
1009 case MANFID_OSITECH:
1010 case MANFID_PSION:
1011 i = osi_setup(link, smc->manfid, smc->cardid); break;
1012 case MANFID_SMC:
1013 case MANFID_NEW_MEDIA:
1014 i = smc_setup(link); break;
1015 case 0x128: /* For broken Megahertz cards */
1016 case MANFID_MEGAHERTZ:
1017 i = mhz_setup(link); break;
1018 case MANFID_MOTOROLA:
1019 default: /* get the hw address from EEPROM */
1020 i = mot_setup(link); break;
1021 }
1022
1023 if (i != 0) {
1024 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
1025 goto config_undo;
1026 }
1027
1028 smc->duplex = 0;
1029 smc->rx_ovrn = 0;
1030
1031 rev = check_sig(link);
1032 name = "???";
1033 if (rev > 0)
1034 switch (rev >> 4) {
1035 case 3: name = "92"; break;
1036 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
1037 case 5: name = "95"; break;
1038 case 7: name = "100"; break;
1039 case 8: name = "100-FD"; break;
1040 case 9: name = "110"; break;
1041 }
1042
1043 ioaddr = dev->base_addr;
1044 if (rev > 0) {
1045 u_long mcr;
1046 SMC_SELECT_BANK(0);
1047 mir = inw(ioaddr + MEMINFO) & 0xff;
1048 if (mir == 0xff) mir++;
1049 /* Get scale factor for memory size */
1050 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
1051 mir *= 128 * (1<<((mcr >> 9) & 7));
1052 SMC_SELECT_BANK(1);
1053 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
1054 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
1055 if (smc->manfid == MANFID_OSITECH)
1056 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
1057 if ((rev >> 4) >= 7)
1058 smc->cfg |= CFG_MII_SELECT;
1059 } else
1060 mir = 0;
1061
1062 if (smc->cfg & CFG_MII_SELECT) {
1063 SMC_SELECT_BANK(3);
1064
1065 for (i = 0; i < 32; i++) {
1066 j = mdio_read(dev, i, 1);
1067 if ((j != 0) && (j != 0xffff)) break;
1068 }
1069 smc->mii_if.phy_id = (i < 32) ? i : -1;
1070
1071 SMC_SELECT_BANK(0);
1072 }
1073
1074 link->dev_node = &smc->node;
1075 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1076
1077 if (register_netdev(dev) != 0) {
1078 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
1079 link->dev_node = NULL;
1080 goto config_undo;
1081 }
1082
1083 strcpy(smc->node.dev_name, dev->name);
1084
1085 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
1086 "hw_addr %s\n",
1087 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
1088 print_mac(mac, dev->dev_addr));
1089
1090 if (rev > 0) {
1091 if (mir & 0x3ff)
1092 printk(KERN_INFO " %lu byte", mir);
1093 else
1094 printk(KERN_INFO " %lu kb", mir>>10);
1095 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
1096 "MII" : if_names[dev->if_port]);
1097 }
1098
1099 if (smc->cfg & CFG_MII_SELECT) {
1100 if (smc->mii_if.phy_id != -1) {
1101 DEBUG(0, " MII transceiver at index %d, status %x.\n",
1102 smc->mii_if.phy_id, j);
1103 } else {
1104 printk(KERN_NOTICE " No MII transceivers found!\n");
1105 }
1106 }
1107 return 0;
1108
1109 config_undo:
1110 unregister_netdev(dev);
1111 config_failed: /* CS_EXIT_TEST() calls jump to here... */
1112 smc91c92_release(link);
1113 return -ENODEV;
1114 } /* smc91c92_config */
1115
1116 /*======================================================================
1117
1118 After a card is removed, smc91c92_release() will unregister the net
1119 device, and release the PCMCIA configuration. If the device is
1120 still open, this will be postponed until it is closed.
1121
1122 ======================================================================*/
1123
1124 static void smc91c92_release(struct pcmcia_device *link)
1125 {
1126 DEBUG(0, "smc91c92_release(0x%p)\n", link);
1127 if (link->win) {
1128 struct net_device *dev = link->priv;
1129 struct smc_private *smc = netdev_priv(dev);
1130 iounmap(smc->base);
1131 }
1132 pcmcia_disable_device(link);
1133 }
1134
1135 /*======================================================================
1136
1137 MII interface support for SMC91cXX based cards
1138 ======================================================================*/
1139
1140 #define MDIO_SHIFT_CLK 0x04
1141 #define MDIO_DATA_OUT 0x01
1142 #define MDIO_DIR_WRITE 0x08
1143 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1144 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1145 #define MDIO_DATA_READ 0x02
1146
1147 static void mdio_sync(unsigned int addr)
1148 {
1149 int bits;
1150 for (bits = 0; bits < 32; bits++) {
1151 outb(MDIO_DATA_WRITE1, addr);
1152 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1153 }
1154 }
1155
1156 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1157 {
1158 unsigned int addr = dev->base_addr + MGMT;
1159 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1160 int i, retval = 0;
1161
1162 mdio_sync(addr);
1163 for (i = 13; i >= 0; i--) {
1164 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1165 outb(dat, addr);
1166 outb(dat | MDIO_SHIFT_CLK, addr);
1167 }
1168 for (i = 19; i > 0; i--) {
1169 outb(0, addr);
1170 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1171 outb(MDIO_SHIFT_CLK, addr);
1172 }
1173 return (retval>>1) & 0xffff;
1174 }
1175
1176 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1177 {
1178 unsigned int addr = dev->base_addr + MGMT;
1179 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1180 int i;
1181
1182 mdio_sync(addr);
1183 for (i = 31; i >= 0; i--) {
1184 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1185 outb(dat, addr);
1186 outb(dat | MDIO_SHIFT_CLK, addr);
1187 }
1188 for (i = 1; i >= 0; i--) {
1189 outb(0, addr);
1190 outb(MDIO_SHIFT_CLK, addr);
1191 }
1192 }
1193
1194 /*======================================================================
1195
1196 The driver core code, most of which should be common with a
1197 non-PCMCIA implementation.
1198
1199 ======================================================================*/
1200
1201 #ifdef PCMCIA_DEBUG
1202 static void smc_dump(struct net_device *dev)
1203 {
1204 unsigned int ioaddr = dev->base_addr;
1205 u_short i, w, save;
1206 save = inw(ioaddr + BANK_SELECT);
1207 for (w = 0; w < 4; w++) {
1208 SMC_SELECT_BANK(w);
1209 printk(KERN_DEBUG "bank %d: ", w);
1210 for (i = 0; i < 14; i += 2)
1211 printk(" %04x", inw(ioaddr + i));
1212 printk("\n");
1213 }
1214 outw(save, ioaddr + BANK_SELECT);
1215 }
1216 #endif
1217
1218 static int smc_open(struct net_device *dev)
1219 {
1220 struct smc_private *smc = netdev_priv(dev);
1221 struct pcmcia_device *link = smc->p_dev;
1222
1223 #ifdef PCMCIA_DEBUG
1224 DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
1225 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1226 if (pc_debug > 1) smc_dump(dev);
1227 #endif
1228
1229 /* Check that the PCMCIA card is still here. */
1230 if (!pcmcia_dev_present(link))
1231 return -ENODEV;
1232 /* Physical device present signature. */
1233 if (check_sig(link) < 0) {
1234 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1235 return -ENODEV;
1236 }
1237 link->open++;
1238
1239 netif_start_queue(dev);
1240 smc->saved_skb = NULL;
1241 smc->packets_waiting = 0;
1242
1243 smc_reset(dev);
1244 init_timer(&smc->media);
1245 smc->media.function = &media_check;
1246 smc->media.data = (u_long) dev;
1247 smc->media.expires = jiffies + HZ;
1248 add_timer(&smc->media);
1249
1250 return 0;
1251 } /* smc_open */
1252
1253 /*====================================================================*/
1254
1255 static int smc_close(struct net_device *dev)
1256 {
1257 struct smc_private *smc = netdev_priv(dev);
1258 struct pcmcia_device *link = smc->p_dev;
1259 unsigned int ioaddr = dev->base_addr;
1260
1261 DEBUG(0, "%s: smc_close(), status %4.4x.\n",
1262 dev->name, inw(ioaddr + BANK_SELECT));
1263
1264 netif_stop_queue(dev);
1265
1266 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1267 Don't bother to check for chip present. */
1268 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1269 outw(0, ioaddr + INTERRUPT);
1270 SMC_SELECT_BANK(0);
1271 mask_bits(0xff00, ioaddr + RCR);
1272 mask_bits(0xff00, ioaddr + TCR);
1273
1274 /* Put the chip into power-down mode. */
1275 SMC_SELECT_BANK(1);
1276 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1277
1278 link->open--;
1279 del_timer_sync(&smc->media);
1280
1281 return 0;
1282 } /* smc_close */
1283
1284 /*======================================================================
1285
1286 Transfer a packet to the hardware and trigger the packet send.
1287 This may be called at either from either the Tx queue code
1288 or the interrupt handler.
1289
1290 ======================================================================*/
1291
1292 static void smc_hardware_send_packet(struct net_device * dev)
1293 {
1294 struct smc_private *smc = netdev_priv(dev);
1295 struct sk_buff *skb = smc->saved_skb;
1296 unsigned int ioaddr = dev->base_addr;
1297 u_char packet_no;
1298
1299 if (!skb) {
1300 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1301 return;
1302 }
1303
1304 /* There should be a packet slot waiting. */
1305 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1306 if (packet_no & 0x80) {
1307 /* If not, there is a hardware problem! Likely an ejected card. */
1308 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1309 " failed, status %#2.2x.\n", dev->name, packet_no);
1310 dev_kfree_skb_irq(skb);
1311 smc->saved_skb = NULL;
1312 netif_start_queue(dev);
1313 return;
1314 }
1315
1316 smc->stats.tx_bytes += skb->len;
1317 /* The card should use the just-allocated buffer. */
1318 outw(packet_no, ioaddr + PNR_ARR);
1319 /* point to the beginning of the packet */
1320 outw(PTR_AUTOINC , ioaddr + POINTER);
1321
1322 /* Send the packet length (+6 for status, length and ctl byte)
1323 and the status word (set to zeros). */
1324 {
1325 u_char *buf = skb->data;
1326 u_int length = skb->len; /* The chip will pad to ethernet min. */
1327
1328 DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
1329 dev->name, length);
1330
1331 /* send the packet length: +6 for status word, length, and ctl */
1332 outw(0, ioaddr + DATA_1);
1333 outw(length + 6, ioaddr + DATA_1);
1334 outsw(ioaddr + DATA_1, buf, length >> 1);
1335
1336 /* The odd last byte, if there is one, goes in the control word. */
1337 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1338 }
1339
1340 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1341 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1342 (inw(ioaddr + INTERRUPT) & 0xff00),
1343 ioaddr + INTERRUPT);
1344
1345 /* The chip does the rest of the work. */
1346 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1347
1348 smc->saved_skb = NULL;
1349 dev_kfree_skb_irq(skb);
1350 dev->trans_start = jiffies;
1351 netif_start_queue(dev);
1352 return;
1353 }
1354
1355 /*====================================================================*/
1356
1357 static void smc_tx_timeout(struct net_device *dev)
1358 {
1359 struct smc_private *smc = netdev_priv(dev);
1360 unsigned int ioaddr = dev->base_addr;
1361
1362 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1363 "Tx_status %2.2x status %4.4x.\n",
1364 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1365 smc->stats.tx_errors++;
1366 smc_reset(dev);
1367 dev->trans_start = jiffies;
1368 smc->saved_skb = NULL;
1369 netif_wake_queue(dev);
1370 }
1371
1372 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
1373 {
1374 struct smc_private *smc = netdev_priv(dev);
1375 unsigned int ioaddr = dev->base_addr;
1376 u_short num_pages;
1377 short time_out, ir;
1378 unsigned long flags;
1379
1380 netif_stop_queue(dev);
1381
1382 DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
1383 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1384
1385 if (smc->saved_skb) {
1386 /* THIS SHOULD NEVER HAPPEN. */
1387 smc->stats.tx_aborted_errors++;
1388 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1389 dev->name);
1390 return 1;
1391 }
1392 smc->saved_skb = skb;
1393
1394 num_pages = skb->len >> 8;
1395
1396 if (num_pages > 7) {
1397 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1398 dev_kfree_skb (skb);
1399 smc->saved_skb = NULL;
1400 smc->stats.tx_dropped++;
1401 return 0; /* Do not re-queue this packet. */
1402 }
1403 /* A packet is now waiting. */
1404 smc->packets_waiting++;
1405
1406 spin_lock_irqsave(&smc->lock, flags);
1407 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1408
1409 /* need MC_RESET to keep the memory consistent. errata? */
1410 if (smc->rx_ovrn) {
1411 outw(MC_RESET, ioaddr + MMU_CMD);
1412 smc->rx_ovrn = 0;
1413 }
1414
1415 /* Allocate the memory; send the packet now if we win. */
1416 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1417 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1418 ir = inw(ioaddr+INTERRUPT);
1419 if (ir & IM_ALLOC_INT) {
1420 /* Acknowledge the interrupt, send the packet. */
1421 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1422 smc_hardware_send_packet(dev); /* Send the packet now.. */
1423 spin_unlock_irqrestore(&smc->lock, flags);
1424 return 0;
1425 }
1426 }
1427
1428 /* Otherwise defer until the Tx-space-allocated interrupt. */
1429 DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
1430 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1431 spin_unlock_irqrestore(&smc->lock, flags);
1432
1433 return 0;
1434 }
1435
1436 /*======================================================================
1437
1438 Handle a Tx anomolous event. Entered while in Window 2.
1439
1440 ======================================================================*/
1441
1442 static void smc_tx_err(struct net_device * dev)
1443 {
1444 struct smc_private *smc = netdev_priv(dev);
1445 unsigned int ioaddr = dev->base_addr;
1446 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1447 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1448 int tx_status;
1449
1450 /* select this as the packet to read from */
1451 outw(packet_no, ioaddr + PNR_ARR);
1452
1453 /* read the first word from this packet */
1454 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1455
1456 tx_status = inw(ioaddr + DATA_1);
1457
1458 smc->stats.tx_errors++;
1459 if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
1460 if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
1461 if (tx_status & TS_16COL) {
1462 smc->stats.tx_aborted_errors++;
1463 smc->tx_err++;
1464 }
1465
1466 if (tx_status & TS_SUCCESS) {
1467 printk(KERN_NOTICE "%s: Successful packet caused error "
1468 "interrupt?\n", dev->name);
1469 }
1470 /* re-enable transmit */
1471 SMC_SELECT_BANK(0);
1472 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1473 SMC_SELECT_BANK(2);
1474
1475 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1476
1477 /* one less packet waiting for me */
1478 smc->packets_waiting--;
1479
1480 outw(saved_packet, ioaddr + PNR_ARR);
1481 return;
1482 }
1483
1484 /*====================================================================*/
1485
1486 static void smc_eph_irq(struct net_device *dev)
1487 {
1488 struct smc_private *smc = netdev_priv(dev);
1489 unsigned int ioaddr = dev->base_addr;
1490 u_short card_stats, ephs;
1491
1492 SMC_SELECT_BANK(0);
1493 ephs = inw(ioaddr + EPH);
1494 DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
1495 " %4.4x.\n", dev->name, ephs);
1496 /* Could be a counter roll-over warning: update stats. */
1497 card_stats = inw(ioaddr + COUNTER);
1498 /* single collisions */
1499 smc->stats.collisions += card_stats & 0xF;
1500 card_stats >>= 4;
1501 /* multiple collisions */
1502 smc->stats.collisions += card_stats & 0xF;
1503 #if 0 /* These are for when linux supports these statistics */
1504 card_stats >>= 4; /* deferred */
1505 card_stats >>= 4; /* excess deferred */
1506 #endif
1507 /* If we had a transmit error we must re-enable the transmitter. */
1508 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1509
1510 /* Clear a link error interrupt. */
1511 SMC_SELECT_BANK(1);
1512 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1513 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1514 ioaddr + CONTROL);
1515 SMC_SELECT_BANK(2);
1516 }
1517
1518 /*====================================================================*/
1519
1520 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1521 {
1522 struct net_device *dev = dev_id;
1523 struct smc_private *smc = netdev_priv(dev);
1524 unsigned int ioaddr;
1525 u_short saved_bank, saved_pointer, mask, status;
1526 unsigned int handled = 1;
1527 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1528
1529 if (!netif_device_present(dev))
1530 return IRQ_NONE;
1531
1532 ioaddr = dev->base_addr;
1533
1534 DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1535 irq, ioaddr);
1536
1537 spin_lock(&smc->lock);
1538 smc->watchdog = 0;
1539 saved_bank = inw(ioaddr + BANK_SELECT);
1540 if ((saved_bank & 0xff00) != 0x3300) {
1541 /* The device does not exist -- the card could be off-line, or
1542 maybe it has been ejected. */
1543 DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
1544 "/ejected device.\n", dev->name, irq);
1545 handled = 0;
1546 goto irq_done;
1547 }
1548
1549 SMC_SELECT_BANK(2);
1550 saved_pointer = inw(ioaddr + POINTER);
1551 mask = inw(ioaddr + INTERRUPT) >> 8;
1552 /* clear all interrupts */
1553 outw(0, ioaddr + INTERRUPT);
1554
1555 do { /* read the status flag, and mask it */
1556 status = inw(ioaddr + INTERRUPT) & 0xff;
1557 DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1558 status, mask);
1559 if ((status & mask) == 0) {
1560 if (bogus_cnt == INTR_WORK)
1561 handled = 0;
1562 break;
1563 }
1564 if (status & IM_RCV_INT) {
1565 /* Got a packet(s). */
1566 smc_rx(dev);
1567 }
1568 if (status & IM_TX_INT) {
1569 smc_tx_err(dev);
1570 outw(IM_TX_INT, ioaddr + INTERRUPT);
1571 }
1572 status &= mask;
1573 if (status & IM_TX_EMPTY_INT) {
1574 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1575 mask &= ~IM_TX_EMPTY_INT;
1576 smc->stats.tx_packets += smc->packets_waiting;
1577 smc->packets_waiting = 0;
1578 }
1579 if (status & IM_ALLOC_INT) {
1580 /* Clear this interrupt so it doesn't happen again */
1581 mask &= ~IM_ALLOC_INT;
1582
1583 smc_hardware_send_packet(dev);
1584
1585 /* enable xmit interrupts based on this */
1586 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1587
1588 /* and let the card send more packets to me */
1589 netif_wake_queue(dev);
1590 }
1591 if (status & IM_RX_OVRN_INT) {
1592 smc->stats.rx_errors++;
1593 smc->stats.rx_fifo_errors++;
1594 if (smc->duplex)
1595 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1596 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1597 }
1598 if (status & IM_EPH_INT)
1599 smc_eph_irq(dev);
1600 } while (--bogus_cnt);
1601
1602 DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
1603 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1604
1605 /* restore state register */
1606 outw((mask<<8), ioaddr + INTERRUPT);
1607 outw(saved_pointer, ioaddr + POINTER);
1608 SMC_SELECT_BANK(saved_bank);
1609
1610 DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1611
1612 irq_done:
1613
1614 if ((smc->manfid == MANFID_OSITECH) &&
1615 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1616 /* Retrigger interrupt if needed */
1617 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1618 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1619 }
1620 if (smc->manfid == MANFID_MOTOROLA) {
1621 u_char cor;
1622 cor = readb(smc->base + MOT_UART + CISREG_COR);
1623 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1624 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1625 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1626 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1627 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1628 }
1629 #ifdef DOES_NOT_WORK
1630 if (smc->base != NULL) { /* Megahertz MFC's */
1631 readb(smc->base+MEGAHERTZ_ISR);
1632 readb(smc->base+MEGAHERTZ_ISR);
1633 }
1634 #endif
1635 spin_unlock(&smc->lock);
1636 return IRQ_RETVAL(handled);
1637 }
1638
1639 /*====================================================================*/
1640
1641 static void smc_rx(struct net_device *dev)
1642 {
1643 struct smc_private *smc = netdev_priv(dev);
1644 unsigned int ioaddr = dev->base_addr;
1645 int rx_status;
1646 int packet_length; /* Caution: not frame length, rather words
1647 to transfer from the chip. */
1648
1649 /* Assertion: we are in Window 2. */
1650
1651 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1652 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1653 dev->name);
1654 return;
1655 }
1656
1657 /* Reset the read pointer, and read the status and packet length. */
1658 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1659 rx_status = inw(ioaddr + DATA_1);
1660 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1661
1662 DEBUG(2, "%s: Receive status %4.4x length %d.\n",
1663 dev->name, rx_status, packet_length);
1664
1665 if (!(rx_status & RS_ERRORS)) {
1666 /* do stuff to make a new packet */
1667 struct sk_buff *skb;
1668
1669 /* Note: packet_length adds 5 or 6 extra bytes here! */
1670 skb = dev_alloc_skb(packet_length+2);
1671
1672 if (skb == NULL) {
1673 DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
1674 smc->stats.rx_dropped++;
1675 outw(MC_RELEASE, ioaddr + MMU_CMD);
1676 return;
1677 }
1678
1679 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1680 skb_reserve(skb, 2);
1681 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1682 (packet_length+1)>>1);
1683 skb->protocol = eth_type_trans(skb, dev);
1684
1685 netif_rx(skb);
1686 dev->last_rx = jiffies;
1687 smc->stats.rx_packets++;
1688 smc->stats.rx_bytes += packet_length;
1689 if (rx_status & RS_MULTICAST)
1690 smc->stats.multicast++;
1691 } else {
1692 /* error ... */
1693 smc->stats.rx_errors++;
1694
1695 if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
1696 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1697 smc->stats.rx_length_errors++;
1698 if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
1699 }
1700 /* Let the MMU free the memory of this packet. */
1701 outw(MC_RELEASE, ioaddr + MMU_CMD);
1702
1703 return;
1704 }
1705
1706 /*====================================================================*/
1707
1708 static struct net_device_stats *smc_get_stats(struct net_device *dev)
1709 {
1710 struct smc_private *smc = netdev_priv(dev);
1711 /* Nothing to update - the 91c92 is a pretty primative chip. */
1712 return &smc->stats;
1713 }
1714
1715 /*======================================================================
1716
1717 Calculate values for the hardware multicast filter hash table.
1718
1719 ======================================================================*/
1720
1721 static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
1722 u_char *multicast_table)
1723 {
1724 struct dev_mc_list *mc_addr;
1725
1726 for (mc_addr = addrs; mc_addr && count-- > 0; mc_addr = mc_addr->next) {
1727 u_int position = ether_crc(6, mc_addr->dmi_addr);
1728 #ifndef final_version /* Verify multicast address. */
1729 if ((mc_addr->dmi_addr[0] & 1) == 0)
1730 continue;
1731 #endif
1732 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1733 }
1734 }
1735
1736 /*======================================================================
1737
1738 Set the receive mode.
1739
1740 This routine is used by both the protocol level to notify us of
1741 promiscuous/multicast mode changes, and by the open/reset code to
1742 initialize the Rx registers. We always set the multicast list and
1743 leave the receiver running.
1744
1745 ======================================================================*/
1746
1747 static void set_rx_mode(struct net_device *dev)
1748 {
1749 unsigned int ioaddr = dev->base_addr;
1750 struct smc_private *smc = netdev_priv(dev);
1751 u_int multicast_table[ 2 ] = { 0, };
1752 unsigned long flags;
1753 u_short rx_cfg_setting;
1754
1755 if (dev->flags & IFF_PROMISC) {
1756 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1757 } else if (dev->flags & IFF_ALLMULTI)
1758 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1759 else {
1760 if (dev->mc_count) {
1761 fill_multicast_tbl(dev->mc_count, dev->mc_list,
1762 (u_char *)multicast_table);
1763 }
1764 rx_cfg_setting = RxStripCRC | RxEnable;
1765 }
1766
1767 /* Load MC table and Rx setting into the chip without interrupts. */
1768 spin_lock_irqsave(&smc->lock, flags);
1769 SMC_SELECT_BANK(3);
1770 outl(multicast_table[0], ioaddr + MULTICAST0);
1771 outl(multicast_table[1], ioaddr + MULTICAST4);
1772 SMC_SELECT_BANK(0);
1773 outw(rx_cfg_setting, ioaddr + RCR);
1774 SMC_SELECT_BANK(2);
1775 spin_unlock_irqrestore(&smc->lock, flags);
1776
1777 return;
1778 }
1779
1780 /*======================================================================
1781
1782 Senses when a card's config changes. Here, it's coax or TP.
1783
1784 ======================================================================*/
1785
1786 static int s9k_config(struct net_device *dev, struct ifmap *map)
1787 {
1788 struct smc_private *smc = netdev_priv(dev);
1789 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1790 if (smc->cfg & CFG_MII_SELECT)
1791 return -EOPNOTSUPP;
1792 else if (map->port > 2)
1793 return -EINVAL;
1794 dev->if_port = map->port;
1795 printk(KERN_INFO "%s: switched to %s port\n",
1796 dev->name, if_names[dev->if_port]);
1797 smc_reset(dev);
1798 }
1799 return 0;
1800 }
1801
1802 /*======================================================================
1803
1804 Reset the chip, reloading every register that might be corrupted.
1805
1806 ======================================================================*/
1807
1808 /*
1809 Set transceiver type, perhaps to something other than what the user
1810 specified in dev->if_port.
1811 */
1812 static void smc_set_xcvr(struct net_device *dev, int if_port)
1813 {
1814 struct smc_private *smc = netdev_priv(dev);
1815 unsigned int ioaddr = dev->base_addr;
1816 u_short saved_bank;
1817
1818 saved_bank = inw(ioaddr + BANK_SELECT);
1819 SMC_SELECT_BANK(1);
1820 if (if_port == 2) {
1821 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1822 if ((smc->manfid == MANFID_OSITECH) &&
1823 (smc->cardid != PRODID_OSITECH_SEVEN))
1824 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1825 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1826 } else {
1827 outw(smc->cfg, ioaddr + CONFIG);
1828 if ((smc->manfid == MANFID_OSITECH) &&
1829 (smc->cardid != PRODID_OSITECH_SEVEN))
1830 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1831 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1832 }
1833 SMC_SELECT_BANK(saved_bank);
1834 }
1835
1836 static void smc_reset(struct net_device *dev)
1837 {
1838 unsigned int ioaddr = dev->base_addr;
1839 struct smc_private *smc = netdev_priv(dev);
1840 int i;
1841
1842 DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
1843
1844 /* The first interaction must be a write to bring the chip out
1845 of sleep mode. */
1846 SMC_SELECT_BANK(0);
1847 /* Reset the chip. */
1848 outw(RCR_SOFTRESET, ioaddr + RCR);
1849 udelay(10);
1850
1851 /* Clear the transmit and receive configuration registers. */
1852 outw(RCR_CLEAR, ioaddr + RCR);
1853 outw(TCR_CLEAR, ioaddr + TCR);
1854
1855 /* Set the Window 1 control, configuration and station addr registers.
1856 No point in writing the I/O base register ;-> */
1857 SMC_SELECT_BANK(1);
1858 /* Automatically release successfully transmitted packets,
1859 Accept link errors, counter and Tx error interrupts. */
1860 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1861 ioaddr + CONTROL);
1862 smc_set_xcvr(dev, dev->if_port);
1863 if ((smc->manfid == MANFID_OSITECH) &&
1864 (smc->cardid != PRODID_OSITECH_SEVEN))
1865 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1866 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1867 ioaddr - 0x10 + OSITECH_AUI_PWR);
1868
1869 /* Fill in the physical address. The databook is wrong about the order! */
1870 for (i = 0; i < 6; i += 2)
1871 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1872 ioaddr + ADDR0 + i);
1873
1874 /* Reset the MMU */
1875 SMC_SELECT_BANK(2);
1876 outw(MC_RESET, ioaddr + MMU_CMD);
1877 outw(0, ioaddr + INTERRUPT);
1878
1879 /* Re-enable the chip. */
1880 SMC_SELECT_BANK(0);
1881 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1882 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1883 set_rx_mode(dev);
1884
1885 if (smc->cfg & CFG_MII_SELECT) {
1886 SMC_SELECT_BANK(3);
1887
1888 /* Reset MII */
1889 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1890
1891 /* Advertise 100F, 100H, 10F, 10H */
1892 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1893
1894 /* Restart MII autonegotiation */
1895 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1896 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1897 }
1898
1899 /* Enable interrupts. */
1900 SMC_SELECT_BANK(2);
1901 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1902 ioaddr + INTERRUPT);
1903 }
1904
1905 /*======================================================================
1906
1907 Media selection timer routine
1908
1909 ======================================================================*/
1910
1911 static void media_check(u_long arg)
1912 {
1913 struct net_device *dev = (struct net_device *) arg;
1914 struct smc_private *smc = netdev_priv(dev);
1915 unsigned int ioaddr = dev->base_addr;
1916 u_short i, media, saved_bank;
1917 u_short link;
1918 unsigned long flags;
1919
1920 spin_lock_irqsave(&smc->lock, flags);
1921
1922 saved_bank = inw(ioaddr + BANK_SELECT);
1923
1924 if (!netif_device_present(dev))
1925 goto reschedule;
1926
1927 SMC_SELECT_BANK(2);
1928
1929 /* need MC_RESET to keep the memory consistent. errata? */
1930 if (smc->rx_ovrn) {
1931 outw(MC_RESET, ioaddr + MMU_CMD);
1932 smc->rx_ovrn = 0;
1933 }
1934 i = inw(ioaddr + INTERRUPT);
1935 SMC_SELECT_BANK(0);
1936 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1937 SMC_SELECT_BANK(1);
1938 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1939
1940 /* Check for pending interrupt with watchdog flag set: with
1941 this, we can limp along even if the interrupt is blocked */
1942 if (smc->watchdog++ && ((i>>8) & i)) {
1943 if (!smc->fast_poll)
1944 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1945 smc_interrupt(dev->irq, dev);
1946 smc->fast_poll = HZ;
1947 }
1948 if (smc->fast_poll) {
1949 smc->fast_poll--;
1950 smc->media.expires = jiffies + HZ/100;
1951 add_timer(&smc->media);
1952 SMC_SELECT_BANK(saved_bank);
1953 spin_unlock_irqrestore(&smc->lock, flags);
1954 return;
1955 }
1956
1957 if (smc->cfg & CFG_MII_SELECT) {
1958 if (smc->mii_if.phy_id < 0)
1959 goto reschedule;
1960
1961 SMC_SELECT_BANK(3);
1962 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1963 if (!link || (link == 0xffff)) {
1964 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1965 smc->mii_if.phy_id = -1;
1966 goto reschedule;
1967 }
1968
1969 link &= 0x0004;
1970 if (link != smc->link_status) {
1971 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1972 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1973 (link) ? "found" : "lost");
1974 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1975 ? TCR_FDUPLX : 0);
1976 if (link) {
1977 printk(KERN_INFO "%s: autonegotiation complete: "
1978 "%sbaseT-%cD selected\n", dev->name,
1979 ((p & 0x0180) ? "100" : "10"),
1980 (smc->duplex ? 'F' : 'H'));
1981 }
1982 SMC_SELECT_BANK(0);
1983 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1984 smc->link_status = link;
1985 }
1986 goto reschedule;
1987 }
1988
1989 /* Ignore collisions unless we've had no rx's recently */
1990 if (time_after(jiffies, dev->last_rx + HZ)) {
1991 if (smc->tx_err || (smc->media_status & EPH_16COL))
1992 media |= EPH_16COL;
1993 }
1994 smc->tx_err = 0;
1995
1996 if (media != smc->media_status) {
1997 if ((media & smc->media_status & 1) &&
1998 ((smc->media_status ^ media) & EPH_LINK_OK))
1999 printk(KERN_INFO "%s: %s link beat\n", dev->name,
2000 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
2001 else if ((media & smc->media_status & 2) &&
2002 ((smc->media_status ^ media) & EPH_16COL))
2003 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
2004 (media & EPH_16COL ? "problem" : "ok"));
2005 if (dev->if_port == 0) {
2006 if (media & 1) {
2007 if (media & EPH_LINK_OK)
2008 printk(KERN_INFO "%s: flipped to 10baseT\n",
2009 dev->name);
2010 else
2011 smc_set_xcvr(dev, 2);
2012 } else {
2013 if (media & EPH_16COL)
2014 smc_set_xcvr(dev, 1);
2015 else
2016 printk(KERN_INFO "%s: flipped to 10base2\n",
2017 dev->name);
2018 }
2019 }
2020 smc->media_status = media;
2021 }
2022
2023 reschedule:
2024 smc->media.expires = jiffies + HZ;
2025 add_timer(&smc->media);
2026 SMC_SELECT_BANK(saved_bank);
2027 spin_unlock_irqrestore(&smc->lock, flags);
2028 }
2029
2030 static int smc_link_ok(struct net_device *dev)
2031 {
2032 unsigned int ioaddr = dev->base_addr;
2033 struct smc_private *smc = netdev_priv(dev);
2034
2035 if (smc->cfg & CFG_MII_SELECT) {
2036 return mii_link_ok(&smc->mii_if);
2037 } else {
2038 SMC_SELECT_BANK(0);
2039 return inw(ioaddr + EPH) & EPH_LINK_OK;
2040 }
2041 }
2042
2043 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2044 {
2045 u16 tmp;
2046 unsigned int ioaddr = dev->base_addr;
2047
2048 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
2049 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
2050
2051 SMC_SELECT_BANK(1);
2052 tmp = inw(ioaddr + CONFIG);
2053 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
2054 ecmd->transceiver = XCVR_INTERNAL;
2055 ecmd->speed = SPEED_10;
2056 ecmd->phy_address = ioaddr + MGMT;
2057
2058 SMC_SELECT_BANK(0);
2059 tmp = inw(ioaddr + TCR);
2060 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
2061
2062 return 0;
2063 }
2064
2065 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2066 {
2067 u16 tmp;
2068 unsigned int ioaddr = dev->base_addr;
2069
2070 if (ecmd->speed != SPEED_10)
2071 return -EINVAL;
2072 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
2073 return -EINVAL;
2074 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
2075 return -EINVAL;
2076 if (ecmd->transceiver != XCVR_INTERNAL)
2077 return -EINVAL;
2078
2079 if (ecmd->port == PORT_AUI)
2080 smc_set_xcvr(dev, 1);
2081 else
2082 smc_set_xcvr(dev, 0);
2083
2084 SMC_SELECT_BANK(0);
2085 tmp = inw(ioaddr + TCR);
2086 if (ecmd->duplex == DUPLEX_FULL)
2087 tmp |= TCR_FDUPLX;
2088 else
2089 tmp &= ~TCR_FDUPLX;
2090 outw(tmp, ioaddr + TCR);
2091
2092 return 0;
2093 }
2094
2095 static int check_if_running(struct net_device *dev)
2096 {
2097 if (!netif_running(dev))
2098 return -EINVAL;
2099 return 0;
2100 }
2101
2102 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2103 {
2104 strcpy(info->driver, DRV_NAME);
2105 strcpy(info->version, DRV_VERSION);
2106 }
2107
2108 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2109 {
2110 struct smc_private *smc = netdev_priv(dev);
2111 unsigned int ioaddr = dev->base_addr;
2112 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2113 int ret;
2114
2115 spin_lock_irq(&smc->lock);
2116 SMC_SELECT_BANK(3);
2117 if (smc->cfg & CFG_MII_SELECT)
2118 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
2119 else
2120 ret = smc_netdev_get_ecmd(dev, ecmd);
2121 SMC_SELECT_BANK(saved_bank);
2122 spin_unlock_irq(&smc->lock);
2123 return ret;
2124 }
2125
2126 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2127 {
2128 struct smc_private *smc = netdev_priv(dev);
2129 unsigned int ioaddr = dev->base_addr;
2130 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2131 int ret;
2132
2133 spin_lock_irq(&smc->lock);
2134 SMC_SELECT_BANK(3);
2135 if (smc->cfg & CFG_MII_SELECT)
2136 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2137 else
2138 ret = smc_netdev_set_ecmd(dev, ecmd);
2139 SMC_SELECT_BANK(saved_bank);
2140 spin_unlock_irq(&smc->lock);
2141 return ret;
2142 }
2143
2144 static u32 smc_get_link(struct net_device *dev)
2145 {
2146 struct smc_private *smc = netdev_priv(dev);
2147 unsigned int ioaddr = dev->base_addr;
2148 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2149 u32 ret;
2150
2151 spin_lock_irq(&smc->lock);
2152 SMC_SELECT_BANK(3);
2153 ret = smc_link_ok(dev);
2154 SMC_SELECT_BANK(saved_bank);
2155 spin_unlock_irq(&smc->lock);
2156 return ret;
2157 }
2158
2159 #ifdef PCMCIA_DEBUG
2160 static u32 smc_get_msglevel(struct net_device *dev)
2161 {
2162 return pc_debug;
2163 }
2164
2165 static void smc_set_msglevel(struct net_device *dev, u32 val)
2166 {
2167 pc_debug = val;
2168 }
2169 #endif
2170
2171 static int smc_nway_reset(struct net_device *dev)
2172 {
2173 struct smc_private *smc = netdev_priv(dev);
2174 if (smc->cfg & CFG_MII_SELECT) {
2175 unsigned int ioaddr = dev->base_addr;
2176 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2177 int res;
2178
2179 SMC_SELECT_BANK(3);
2180 res = mii_nway_restart(&smc->mii_if);
2181 SMC_SELECT_BANK(saved_bank);
2182
2183 return res;
2184 } else
2185 return -EOPNOTSUPP;
2186 }
2187
2188 static const struct ethtool_ops ethtool_ops = {
2189 .begin = check_if_running,
2190 .get_drvinfo = smc_get_drvinfo,
2191 .get_settings = smc_get_settings,
2192 .set_settings = smc_set_settings,
2193 .get_link = smc_get_link,
2194 #ifdef PCMCIA_DEBUG
2195 .get_msglevel = smc_get_msglevel,
2196 .set_msglevel = smc_set_msglevel,
2197 #endif
2198 .nway_reset = smc_nway_reset,
2199 };
2200
2201 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2202 {
2203 struct smc_private *smc = netdev_priv(dev);
2204 struct mii_ioctl_data *mii = if_mii(rq);
2205 int rc = 0;
2206 u16 saved_bank;
2207 unsigned int ioaddr = dev->base_addr;
2208
2209 if (!netif_running(dev))
2210 return -EINVAL;
2211
2212 spin_lock_irq(&smc->lock);
2213 saved_bank = inw(ioaddr + BANK_SELECT);
2214 SMC_SELECT_BANK(3);
2215 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2216 SMC_SELECT_BANK(saved_bank);
2217 spin_unlock_irq(&smc->lock);
2218 return rc;
2219 }
2220
2221 static struct pcmcia_device_id smc91c92_ids[] = {
2222 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2223 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2224 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2225 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2226 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2227 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2228 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2229 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2230 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2231 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2232 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2233 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2234 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2235 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2236 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2237 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2238 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2239 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2240 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2241 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2242 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2243 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2244 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2245 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2246 /* These conflict with other cards! */
2247 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2248 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2249 PCMCIA_DEVICE_NULL,
2250 };
2251 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2252
2253 static struct pcmcia_driver smc91c92_cs_driver = {
2254 .owner = THIS_MODULE,
2255 .drv = {
2256 .name = "smc91c92_cs",
2257 },
2258 .probe = smc91c92_probe,
2259 .remove = smc91c92_detach,
2260 .id_table = smc91c92_ids,
2261 .suspend = smc91c92_suspend,
2262 .resume = smc91c92_resume,
2263 };
2264
2265 static int __init init_smc91c92_cs(void)
2266 {
2267 return pcmcia_register_driver(&smc91c92_cs_driver);
2268 }
2269
2270 static void __exit exit_smc91c92_cs(void)
2271 {
2272 pcmcia_unregister_driver(&smc91c92_cs_driver);
2273 }
2274
2275 module_init(init_smc91c92_cs);
2276 module_exit(exit_smc91c92_cs);
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