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pcmcia: move driver name to struct pcmcia_driver
[deliverable/linux.git] / drivers / net / pcmcia / smc91c92_cs.c
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 #include <linux/firmware.h>
46
47 #include <pcmcia/cistpl.h>
48 #include <pcmcia/cisreg.h>
49 #include <pcmcia/ciscode.h>
50 #include <pcmcia/ds.h>
51 #include <pcmcia/ss.h>
52
53 #include <asm/io.h>
54 #include <asm/system.h>
55 #include <asm/uaccess.h>
56
57 /*====================================================================*/
58
59 static const char *if_names[] = { "auto", "10baseT", "10base2"};
60
61 /* Firmware name */
62 #define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
63
64 /* Module parameters */
65
66 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
67 MODULE_LICENSE("GPL");
68 MODULE_FIRMWARE(FIRMWARE_NAME);
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
81 #define DRV_NAME "smc91c92_cs"
82 #define DRV_VERSION "1.123"
83
84 /*====================================================================*/
85
86 /* Operational parameter that usually are not changed. */
87
88 /* Time in jiffies before concluding Tx hung */
89 #define TX_TIMEOUT ((400*HZ)/1000)
90
91 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
92 #define INTR_WORK 4
93
94 /* Times to check the check the chip before concluding that it doesn't
95 currently have room for another Tx packet. */
96 #define MEMORY_WAIT_TIME 8
97
98 struct smc_private {
99 struct pcmcia_device *p_dev;
100 spinlock_t lock;
101 u_short manfid;
102 u_short cardid;
103
104 struct sk_buff *saved_skb;
105 int packets_waiting;
106 void __iomem *base;
107 u_short cfg;
108 struct timer_list media;
109 int watchdog, tx_err;
110 u_short media_status;
111 u_short fast_poll;
112 u_short link_status;
113 struct mii_if_info mii_if;
114 int duplex;
115 int rx_ovrn;
116 };
117
118 /* Special definitions for Megahertz multifunction cards */
119 #define MEGAHERTZ_ISR 0x0380
120
121 /* Special function registers for Motorola Mariner */
122 #define MOT_LAN 0x0000
123 #define MOT_UART 0x0020
124 #define MOT_EEPROM 0x20
125
126 #define MOT_NORMAL \
127 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
128
129 /* Special function registers for Ositech cards */
130 #define OSITECH_AUI_CTL 0x0c
131 #define OSITECH_PWRDOWN 0x0d
132 #define OSITECH_RESET 0x0e
133 #define OSITECH_ISR 0x0f
134 #define OSITECH_AUI_PWR 0x0c
135 #define OSITECH_RESET_ISR 0x0e
136
137 #define OSI_AUI_PWR 0x40
138 #define OSI_LAN_PWRDOWN 0x02
139 #define OSI_MODEM_PWRDOWN 0x01
140 #define OSI_LAN_RESET 0x02
141 #define OSI_MODEM_RESET 0x01
142
143 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
144 #define BANK_SELECT 14 /* Window select register. */
145 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
146
147 /* Bank 0 registers. */
148 #define TCR 0 /* transmit control register */
149 #define TCR_CLEAR 0 /* do NOTHING */
150 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
151 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
152 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
153 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
154 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
155
156 #define EPH 2 /* Ethernet Protocol Handler report. */
157 #define EPH_TX_SUC 0x0001
158 #define EPH_SNGLCOL 0x0002
159 #define EPH_MULCOL 0x0004
160 #define EPH_LTX_MULT 0x0008
161 #define EPH_16COL 0x0010
162 #define EPH_SQET 0x0020
163 #define EPH_LTX_BRD 0x0040
164 #define EPH_TX_DEFR 0x0080
165 #define EPH_LAT_COL 0x0200
166 #define EPH_LOST_CAR 0x0400
167 #define EPH_EXC_DEF 0x0800
168 #define EPH_CTR_ROL 0x1000
169 #define EPH_RX_OVRN 0x2000
170 #define EPH_LINK_OK 0x4000
171 #define EPH_TX_UNRN 0x8000
172 #define MEMINFO 8 /* Memory Information Register */
173 #define MEMCFG 10 /* Memory Configuration Register */
174
175 /* Bank 1 registers. */
176 #define CONFIG 0
177 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
178 #define CFG_NO_WAIT 0x1000
179 #define CFG_FULL_STEP 0x0400
180 #define CFG_SET_SQLCH 0x0200
181 #define CFG_AUI_SELECT 0x0100
182 #define CFG_16BIT 0x0080
183 #define CFG_DIS_LINK 0x0040
184 #define CFG_STATIC 0x0030
185 #define CFG_IRQ_SEL_1 0x0004
186 #define CFG_IRQ_SEL_0 0x0002
187 #define BASE_ADDR 2
188 #define ADDR0 4
189 #define GENERAL 10
190 #define CONTROL 12
191 #define CTL_STORE 0x0001
192 #define CTL_RELOAD 0x0002
193 #define CTL_EE_SELECT 0x0004
194 #define CTL_TE_ENABLE 0x0020
195 #define CTL_CR_ENABLE 0x0040
196 #define CTL_LE_ENABLE 0x0080
197 #define CTL_AUTO_RELEASE 0x0800
198 #define CTL_POWERDOWN 0x2000
199
200 /* Bank 2 registers. */
201 #define MMU_CMD 0
202 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
203 #define MC_RESET 0x40
204 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
205 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
206 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
207 #define PNR_ARR 2
208 #define FIFO_PORTS 4
209 #define FP_RXEMPTY 0x8000
210 #define POINTER 6
211 #define PTR_AUTO_INC 0x0040
212 #define PTR_READ 0x2000
213 #define PTR_AUTOINC 0x4000
214 #define PTR_RCV 0x8000
215 #define DATA_1 8
216 #define INTERRUPT 12
217 #define IM_RCV_INT 0x1
218 #define IM_TX_INT 0x2
219 #define IM_TX_EMPTY_INT 0x4
220 #define IM_ALLOC_INT 0x8
221 #define IM_RX_OVRN_INT 0x10
222 #define IM_EPH_INT 0x20
223
224 #define RCR 4
225 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
226 RxEnable = 0x0100, RxStripCRC = 0x0200};
227 #define RCR_SOFTRESET 0x8000 /* resets the chip */
228 #define RCR_STRIP_CRC 0x200 /* strips CRC */
229 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
230 #define RCR_ALMUL 0x4 /* receive all multicast packets */
231 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
232
233 /* the normal settings for the RCR register : */
234 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
235 #define RCR_CLEAR 0x0 /* set it to a base state */
236 #define COUNTER 6
237
238 /* BANK 3 -- not the same values as in smc9194! */
239 #define MULTICAST0 0
240 #define MULTICAST2 2
241 #define MULTICAST4 4
242 #define MULTICAST6 6
243 #define MGMT 8
244 #define REVISION 0x0a
245
246 /* Transmit status bits. */
247 #define TS_SUCCESS 0x0001
248 #define TS_16COL 0x0010
249 #define TS_LATCOL 0x0200
250 #define TS_LOSTCAR 0x0400
251
252 /* Receive status bits. */
253 #define RS_ALGNERR 0x8000
254 #define RS_BADCRC 0x2000
255 #define RS_ODDFRAME 0x1000
256 #define RS_TOOLONG 0x0800
257 #define RS_TOOSHORT 0x0400
258 #define RS_MULTICAST 0x0001
259 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
260
261 #define set_bits(v, p) outw(inw(p)|(v), (p))
262 #define mask_bits(v, p) outw(inw(p)&(v), (p))
263
264 /*====================================================================*/
265
266 static void smc91c92_detach(struct pcmcia_device *p_dev);
267 static int smc91c92_config(struct pcmcia_device *link);
268 static void smc91c92_release(struct pcmcia_device *link);
269
270 static int smc_open(struct net_device *dev);
271 static int smc_close(struct net_device *dev);
272 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
273 static void smc_tx_timeout(struct net_device *dev);
274 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
275 struct net_device *dev);
276 static irqreturn_t smc_interrupt(int irq, void *dev_id);
277 static void smc_rx(struct net_device *dev);
278 static void set_rx_mode(struct net_device *dev);
279 static int s9k_config(struct net_device *dev, struct ifmap *map);
280 static void smc_set_xcvr(struct net_device *dev, int if_port);
281 static void smc_reset(struct net_device *dev);
282 static void media_check(u_long arg);
283 static void mdio_sync(unsigned int addr);
284 static int mdio_read(struct net_device *dev, int phy_id, int loc);
285 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
286 static int smc_link_ok(struct net_device *dev);
287 static const struct ethtool_ops ethtool_ops;
288
289 static const struct net_device_ops smc_netdev_ops = {
290 .ndo_open = smc_open,
291 .ndo_stop = smc_close,
292 .ndo_start_xmit = smc_start_xmit,
293 .ndo_tx_timeout = smc_tx_timeout,
294 .ndo_set_config = s9k_config,
295 .ndo_set_multicast_list = set_rx_mode,
296 .ndo_do_ioctl = &smc_ioctl,
297 .ndo_change_mtu = eth_change_mtu,
298 .ndo_set_mac_address = eth_mac_addr,
299 .ndo_validate_addr = eth_validate_addr,
300 };
301
302 /*======================================================================
303
304 smc91c92_attach() creates an "instance" of the driver, allocating
305 local data structures for one device. The device is registered
306 with Card Services.
307
308 ======================================================================*/
309
310 static int smc91c92_probe(struct pcmcia_device *link)
311 {
312 struct smc_private *smc;
313 struct net_device *dev;
314
315 dev_dbg(&link->dev, "smc91c92_attach()\n");
316
317 /* Create new ethernet device */
318 dev = alloc_etherdev(sizeof(struct smc_private));
319 if (!dev)
320 return -ENOMEM;
321 smc = netdev_priv(dev);
322 smc->p_dev = link;
323 link->priv = dev;
324
325 spin_lock_init(&smc->lock);
326
327 /* The SMC91c92-specific entries in the device structure. */
328 dev->netdev_ops = &smc_netdev_ops;
329 SET_ETHTOOL_OPS(dev, &ethtool_ops);
330 dev->watchdog_timeo = TX_TIMEOUT;
331
332 smc->mii_if.dev = dev;
333 smc->mii_if.mdio_read = mdio_read;
334 smc->mii_if.mdio_write = mdio_write;
335 smc->mii_if.phy_id_mask = 0x1f;
336 smc->mii_if.reg_num_mask = 0x1f;
337
338 return smc91c92_config(link);
339 } /* smc91c92_attach */
340
341 /*======================================================================
342
343 This deletes a driver "instance". The device is de-registered
344 with Card Services. If it has been released, all local data
345 structures are freed. Otherwise, the structures will be freed
346 when the device is released.
347
348 ======================================================================*/
349
350 static void smc91c92_detach(struct pcmcia_device *link)
351 {
352 struct net_device *dev = link->priv;
353
354 dev_dbg(&link->dev, "smc91c92_detach\n");
355
356 unregister_netdev(dev);
357
358 smc91c92_release(link);
359
360 free_netdev(dev);
361 } /* smc91c92_detach */
362
363 /*====================================================================*/
364
365 static int cvt_ascii_address(struct net_device *dev, char *s)
366 {
367 int i, j, da, c;
368
369 if (strlen(s) != 12)
370 return -1;
371 for (i = 0; i < 6; i++) {
372 da = 0;
373 for (j = 0; j < 2; j++) {
374 c = *s++;
375 da <<= 4;
376 da += ((c >= '0') && (c <= '9')) ?
377 (c - '0') : ((c & 0x0f) + 9);
378 }
379 dev->dev_addr[i] = da;
380 }
381 return 0;
382 }
383
384 /*====================================================================
385
386 Configuration stuff for Megahertz cards
387
388 mhz_3288_power() is used to power up a 3288's ethernet chip.
389 mhz_mfc_config() handles socket setup for multifunction (1144
390 and 3288) cards. mhz_setup() gets a card's hardware ethernet
391 address.
392
393 ======================================================================*/
394
395 static int mhz_3288_power(struct pcmcia_device *link)
396 {
397 struct net_device *dev = link->priv;
398 struct smc_private *smc = netdev_priv(dev);
399 u_char tmp;
400
401 /* Read the ISR twice... */
402 readb(smc->base+MEGAHERTZ_ISR);
403 udelay(5);
404 readb(smc->base+MEGAHERTZ_ISR);
405
406 /* Pause 200ms... */
407 mdelay(200);
408
409 /* Now read and write the COR... */
410 tmp = readb(smc->base + link->config_base + CISREG_COR);
411 udelay(5);
412 writeb(tmp, smc->base + link->config_base + CISREG_COR);
413
414 return 0;
415 }
416
417 static int mhz_mfc_config_check(struct pcmcia_device *p_dev, void *priv_data)
418 {
419 int k;
420 p_dev->io_lines = 16;
421 p_dev->resource[1]->start = p_dev->resource[0]->start;
422 p_dev->resource[1]->end = 8;
423 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
424 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
425 p_dev->resource[0]->end = 16;
426 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
427 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
428 for (k = 0; k < 0x400; k += 0x10) {
429 if (k & 0x80)
430 continue;
431 p_dev->resource[0]->start = k ^ 0x300;
432 if (!pcmcia_request_io(p_dev))
433 return 0;
434 }
435 return -ENODEV;
436 }
437
438 static int mhz_mfc_config(struct pcmcia_device *link)
439 {
440 struct net_device *dev = link->priv;
441 struct smc_private *smc = netdev_priv(dev);
442 unsigned int offset;
443 int i;
444
445 link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ |
446 CONF_AUTO_SET_IO;
447
448 /* The Megahertz combo cards have modem-like CIS entries, so
449 we have to explicitly try a bunch of port combinations. */
450 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
451 return -ENODEV;
452
453 dev->base_addr = link->resource[0]->start;
454
455 /* Allocate a memory window, for accessing the ISR */
456 link->resource[2]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
457 link->resource[2]->start = link->resource[2]->end = 0;
458 i = pcmcia_request_window(link, link->resource[2], 0);
459 if (i != 0)
460 return -ENODEV;
461
462 smc->base = ioremap(link->resource[2]->start,
463 resource_size(link->resource[2]));
464 offset = (smc->manfid == MANFID_MOTOROLA) ? link->config_base : 0;
465 i = pcmcia_map_mem_page(link, link->resource[2], offset);
466 if ((i == 0) &&
467 (smc->manfid == MANFID_MEGAHERTZ) &&
468 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
469 mhz_3288_power(link);
470
471 return 0;
472 }
473
474 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
475 tuple_t *tuple,
476 void *priv)
477 {
478 struct net_device *dev = priv;
479 cisparse_t parse;
480 u8 *buf;
481
482 if (pcmcia_parse_tuple(tuple, &parse))
483 return -EINVAL;
484
485 buf = parse.version_1.str + parse.version_1.ofs[3];
486
487 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
488 return 0;
489
490 return -EINVAL;
491 };
492
493 static int mhz_setup(struct pcmcia_device *link)
494 {
495 struct net_device *dev = link->priv;
496 size_t len;
497 u8 *buf;
498 int rc;
499
500 /* Read the station address from the CIS. It is stored as the last
501 (fourth) string in the Version 1 Version/ID tuple. */
502 if ((link->prod_id[3]) &&
503 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
504 return 0;
505
506 /* Workarounds for broken cards start here. */
507 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
508 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
509 return 0;
510
511 /* Another possibility: for the EM3288, in a special tuple */
512 rc = -1;
513 len = pcmcia_get_tuple(link, 0x81, &buf);
514 if (buf && len >= 13) {
515 buf[12] = '\0';
516 if (cvt_ascii_address(dev, buf) == 0)
517 rc = 0;
518 }
519 kfree(buf);
520
521 return rc;
522 };
523
524 /*======================================================================
525
526 Configuration stuff for the Motorola Mariner
527
528 mot_config() writes directly to the Mariner configuration
529 registers because the CIS is just bogus.
530
531 ======================================================================*/
532
533 static void mot_config(struct pcmcia_device *link)
534 {
535 struct net_device *dev = link->priv;
536 struct smc_private *smc = netdev_priv(dev);
537 unsigned int ioaddr = dev->base_addr;
538 unsigned int iouart = link->resource[1]->start;
539
540 /* Set UART base address and force map with COR bit 1 */
541 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
542 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
543 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
544
545 /* Set SMC base address and force map with COR bit 1 */
546 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
547 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
548 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
549
550 /* Wait for things to settle down */
551 mdelay(100);
552 }
553
554 static int mot_setup(struct pcmcia_device *link)
555 {
556 struct net_device *dev = link->priv;
557 unsigned int ioaddr = dev->base_addr;
558 int i, wait, loop;
559 u_int addr;
560
561 /* Read Ethernet address from Serial EEPROM */
562
563 for (i = 0; i < 3; i++) {
564 SMC_SELECT_BANK(2);
565 outw(MOT_EEPROM + i, ioaddr + POINTER);
566 SMC_SELECT_BANK(1);
567 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
568
569 for (loop = wait = 0; loop < 200; loop++) {
570 udelay(10);
571 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
572 if (wait == 0) break;
573 }
574
575 if (wait)
576 return -1;
577
578 addr = inw(ioaddr + GENERAL);
579 dev->dev_addr[2*i] = addr & 0xff;
580 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
581 }
582
583 return 0;
584 }
585
586 /*====================================================================*/
587
588 static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data)
589 {
590 p_dev->resource[0]->end = 16;
591 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
592 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
593
594 return pcmcia_request_io(p_dev);
595 }
596
597 static int smc_config(struct pcmcia_device *link)
598 {
599 struct net_device *dev = link->priv;
600 int i;
601
602 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
603
604 i = pcmcia_loop_config(link, smc_configcheck, NULL);
605 if (!i)
606 dev->base_addr = link->resource[0]->start;
607
608 return i;
609 }
610
611
612 static int smc_setup(struct pcmcia_device *link)
613 {
614 struct net_device *dev = link->priv;
615
616 /* Check for a LAN function extension tuple */
617 if (!pcmcia_get_mac_from_cis(link, dev))
618 return 0;
619
620 /* Try the third string in the Version 1 Version/ID tuple. */
621 if (link->prod_id[2]) {
622 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
623 return 0;
624 }
625 return -1;
626 }
627
628 /*====================================================================*/
629
630 static int osi_config(struct pcmcia_device *link)
631 {
632 struct net_device *dev = link->priv;
633 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
634 int i, j;
635
636 link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ;
637 link->resource[0]->end = 64;
638 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
639 link->resource[1]->end = 8;
640
641 /* Enable Hard Decode, LAN, Modem */
642 link->io_lines = 16;
643 link->config_index = 0x23;
644
645 for (i = j = 0; j < 4; j++) {
646 link->resource[1]->start = com[j];
647 i = pcmcia_request_io(link);
648 if (i == 0)
649 break;
650 }
651 if (i != 0) {
652 /* Fallback: turn off hard decode */
653 link->config_index = 0x03;
654 link->resource[1]->end = 0;
655 i = pcmcia_request_io(link);
656 }
657 dev->base_addr = link->resource[0]->start + 0x10;
658 return i;
659 }
660
661 static int osi_load_firmware(struct pcmcia_device *link)
662 {
663 const struct firmware *fw;
664 int i, err;
665
666 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
667 if (err) {
668 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
669 return err;
670 }
671
672 /* Download the Seven of Diamonds firmware */
673 for (i = 0; i < fw->size; i++) {
674 outb(fw->data[i], link->resource[0]->start + 2);
675 udelay(50);
676 }
677 release_firmware(fw);
678 return err;
679 }
680
681 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
682 tuple_t *tuple,
683 void *priv)
684 {
685 struct net_device *dev = priv;
686 int i;
687
688 if (tuple->TupleDataLen < 8)
689 return -EINVAL;
690 if (tuple->TupleData[0] != 0x04)
691 return -EINVAL;
692 for (i = 0; i < 6; i++)
693 dev->dev_addr[i] = tuple->TupleData[i+2];
694 return 0;
695 };
696
697
698 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
699 {
700 struct net_device *dev = link->priv;
701 int rc;
702
703 /* Read the station address from tuple 0x90, subtuple 0x04 */
704 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
705 return -1;
706
707 if (((manfid == MANFID_OSITECH) &&
708 (cardid == PRODID_OSITECH_SEVEN)) ||
709 ((manfid == MANFID_PSION) &&
710 (cardid == PRODID_PSION_NET100))) {
711 rc = osi_load_firmware(link);
712 if (rc)
713 return rc;
714 } else if (manfid == MANFID_OSITECH) {
715 /* Make sure both functions are powered up */
716 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
717 /* Now, turn on the interrupt for both card functions */
718 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
719 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
720 inw(link->resource[0]->start + OSITECH_AUI_PWR),
721 inw(link->resource[0]->start + OSITECH_RESET_ISR));
722 }
723 return 0;
724 }
725
726 static int smc91c92_suspend(struct pcmcia_device *link)
727 {
728 struct net_device *dev = link->priv;
729
730 if (link->open)
731 netif_device_detach(dev);
732
733 return 0;
734 }
735
736 static int smc91c92_resume(struct pcmcia_device *link)
737 {
738 struct net_device *dev = link->priv;
739 struct smc_private *smc = netdev_priv(dev);
740 int i;
741
742 if ((smc->manfid == MANFID_MEGAHERTZ) &&
743 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
744 mhz_3288_power(link);
745 if (smc->manfid == MANFID_MOTOROLA)
746 mot_config(link);
747 if ((smc->manfid == MANFID_OSITECH) &&
748 (smc->cardid != PRODID_OSITECH_SEVEN)) {
749 /* Power up the card and enable interrupts */
750 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
751 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
752 }
753 if (((smc->manfid == MANFID_OSITECH) &&
754 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
755 ((smc->manfid == MANFID_PSION) &&
756 (smc->cardid == PRODID_PSION_NET100))) {
757 i = osi_load_firmware(link);
758 if (i) {
759 pr_err("smc91c92_cs: Failed to load firmware\n");
760 return i;
761 }
762 }
763 if (link->open) {
764 smc_reset(dev);
765 netif_device_attach(dev);
766 }
767
768 return 0;
769 }
770
771
772 /*======================================================================
773
774 This verifies that the chip is some SMC91cXX variant, and returns
775 the revision code if successful. Otherwise, it returns -ENODEV.
776
777 ======================================================================*/
778
779 static int check_sig(struct pcmcia_device *link)
780 {
781 struct net_device *dev = link->priv;
782 unsigned int ioaddr = dev->base_addr;
783 int width;
784 u_short s;
785
786 SMC_SELECT_BANK(1);
787 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
788 /* Try powering up the chip */
789 outw(0, ioaddr + CONTROL);
790 mdelay(55);
791 }
792
793 /* Try setting bus width */
794 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
795 s = inb(ioaddr + CONFIG);
796 if (width)
797 s |= CFG_16BIT;
798 else
799 s &= ~CFG_16BIT;
800 outb(s, ioaddr + CONFIG);
801
802 /* Check Base Address Register to make sure bus width is OK */
803 s = inw(ioaddr + BASE_ADDR);
804 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
805 ((s >> 8) != (s & 0xff))) {
806 SMC_SELECT_BANK(3);
807 s = inw(ioaddr + REVISION);
808 return (s & 0xff);
809 }
810
811 if (width) {
812 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
813
814 smc91c92_suspend(link);
815 pcmcia_fixup_iowidth(link);
816 smc91c92_resume(link);
817 return check_sig(link);
818 }
819 return -ENODEV;
820 }
821
822 /*======================================================================
823
824 smc91c92_config() is scheduled to run after a CARD_INSERTION event
825 is received, to configure the PCMCIA socket, and to make the
826 ethernet device available to the system.
827
828 ======================================================================*/
829
830 static int smc91c92_config(struct pcmcia_device *link)
831 {
832 struct net_device *dev = link->priv;
833 struct smc_private *smc = netdev_priv(dev);
834 char *name;
835 int i, j, rev;
836 unsigned int ioaddr;
837 u_long mir;
838
839 dev_dbg(&link->dev, "smc91c92_config\n");
840
841 smc->manfid = link->manf_id;
842 smc->cardid = link->card_id;
843
844 if ((smc->manfid == MANFID_OSITECH) &&
845 (smc->cardid != PRODID_OSITECH_SEVEN)) {
846 i = osi_config(link);
847 } else if ((smc->manfid == MANFID_MOTOROLA) ||
848 ((smc->manfid == MANFID_MEGAHERTZ) &&
849 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
850 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
851 i = mhz_mfc_config(link);
852 } else {
853 i = smc_config(link);
854 }
855 if (i)
856 goto config_failed;
857
858 i = pcmcia_request_irq(link, smc_interrupt);
859 if (i)
860 goto config_failed;
861 i = pcmcia_enable_device(link);
862 if (i)
863 goto config_failed;
864
865 if (smc->manfid == MANFID_MOTOROLA)
866 mot_config(link);
867
868 dev->irq = link->irq;
869
870 if ((if_port >= 0) && (if_port <= 2))
871 dev->if_port = if_port;
872 else
873 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
874
875 switch (smc->manfid) {
876 case MANFID_OSITECH:
877 case MANFID_PSION:
878 i = osi_setup(link, smc->manfid, smc->cardid); break;
879 case MANFID_SMC:
880 case MANFID_NEW_MEDIA:
881 i = smc_setup(link); break;
882 case 0x128: /* For broken Megahertz cards */
883 case MANFID_MEGAHERTZ:
884 i = mhz_setup(link); break;
885 case MANFID_MOTOROLA:
886 default: /* get the hw address from EEPROM */
887 i = mot_setup(link); break;
888 }
889
890 if (i != 0) {
891 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
892 goto config_failed;
893 }
894
895 smc->duplex = 0;
896 smc->rx_ovrn = 0;
897
898 rev = check_sig(link);
899 name = "???";
900 if (rev > 0)
901 switch (rev >> 4) {
902 case 3: name = "92"; break;
903 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
904 case 5: name = "95"; break;
905 case 7: name = "100"; break;
906 case 8: name = "100-FD"; break;
907 case 9: name = "110"; break;
908 }
909
910 ioaddr = dev->base_addr;
911 if (rev > 0) {
912 u_long mcr;
913 SMC_SELECT_BANK(0);
914 mir = inw(ioaddr + MEMINFO) & 0xff;
915 if (mir == 0xff) mir++;
916 /* Get scale factor for memory size */
917 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
918 mir *= 128 * (1<<((mcr >> 9) & 7));
919 SMC_SELECT_BANK(1);
920 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
921 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
922 if (smc->manfid == MANFID_OSITECH)
923 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
924 if ((rev >> 4) >= 7)
925 smc->cfg |= CFG_MII_SELECT;
926 } else
927 mir = 0;
928
929 if (smc->cfg & CFG_MII_SELECT) {
930 SMC_SELECT_BANK(3);
931
932 for (i = 0; i < 32; i++) {
933 j = mdio_read(dev, i, 1);
934 if ((j != 0) && (j != 0xffff)) break;
935 }
936 smc->mii_if.phy_id = (i < 32) ? i : -1;
937
938 SMC_SELECT_BANK(0);
939 }
940
941 SET_NETDEV_DEV(dev, &link->dev);
942
943 if (register_netdev(dev) != 0) {
944 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
945 goto config_undo;
946 }
947
948 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
949 "hw_addr %pM\n",
950 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
951 dev->dev_addr);
952
953 if (rev > 0) {
954 if (mir & 0x3ff)
955 printk(KERN_INFO " %lu byte", mir);
956 else
957 printk(KERN_INFO " %lu kb", mir>>10);
958 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
959 "MII" : if_names[dev->if_port]);
960 }
961
962 if (smc->cfg & CFG_MII_SELECT) {
963 if (smc->mii_if.phy_id != -1) {
964 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
965 smc->mii_if.phy_id, j);
966 } else {
967 printk(KERN_NOTICE " No MII transceivers found!\n");
968 }
969 }
970 return 0;
971
972 config_undo:
973 unregister_netdev(dev);
974 config_failed:
975 smc91c92_release(link);
976 free_netdev(dev);
977 return -ENODEV;
978 } /* smc91c92_config */
979
980 /*======================================================================
981
982 After a card is removed, smc91c92_release() will unregister the net
983 device, and release the PCMCIA configuration. If the device is
984 still open, this will be postponed until it is closed.
985
986 ======================================================================*/
987
988 static void smc91c92_release(struct pcmcia_device *link)
989 {
990 dev_dbg(&link->dev, "smc91c92_release\n");
991 if (link->resource[2]->end) {
992 struct net_device *dev = link->priv;
993 struct smc_private *smc = netdev_priv(dev);
994 iounmap(smc->base);
995 }
996 pcmcia_disable_device(link);
997 }
998
999 /*======================================================================
1000
1001 MII interface support for SMC91cXX based cards
1002 ======================================================================*/
1003
1004 #define MDIO_SHIFT_CLK 0x04
1005 #define MDIO_DATA_OUT 0x01
1006 #define MDIO_DIR_WRITE 0x08
1007 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1008 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1009 #define MDIO_DATA_READ 0x02
1010
1011 static void mdio_sync(unsigned int addr)
1012 {
1013 int bits;
1014 for (bits = 0; bits < 32; bits++) {
1015 outb(MDIO_DATA_WRITE1, addr);
1016 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1017 }
1018 }
1019
1020 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1021 {
1022 unsigned int addr = dev->base_addr + MGMT;
1023 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1024 int i, retval = 0;
1025
1026 mdio_sync(addr);
1027 for (i = 13; i >= 0; i--) {
1028 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1029 outb(dat, addr);
1030 outb(dat | MDIO_SHIFT_CLK, addr);
1031 }
1032 for (i = 19; i > 0; i--) {
1033 outb(0, addr);
1034 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1035 outb(MDIO_SHIFT_CLK, addr);
1036 }
1037 return (retval>>1) & 0xffff;
1038 }
1039
1040 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1041 {
1042 unsigned int addr = dev->base_addr + MGMT;
1043 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1044 int i;
1045
1046 mdio_sync(addr);
1047 for (i = 31; i >= 0; i--) {
1048 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1049 outb(dat, addr);
1050 outb(dat | MDIO_SHIFT_CLK, addr);
1051 }
1052 for (i = 1; i >= 0; i--) {
1053 outb(0, addr);
1054 outb(MDIO_SHIFT_CLK, addr);
1055 }
1056 }
1057
1058 /*======================================================================
1059
1060 The driver core code, most of which should be common with a
1061 non-PCMCIA implementation.
1062
1063 ======================================================================*/
1064
1065 #ifdef PCMCIA_DEBUG
1066 static void smc_dump(struct net_device *dev)
1067 {
1068 unsigned int ioaddr = dev->base_addr;
1069 u_short i, w, save;
1070 save = inw(ioaddr + BANK_SELECT);
1071 for (w = 0; w < 4; w++) {
1072 SMC_SELECT_BANK(w);
1073 printk(KERN_DEBUG "bank %d: ", w);
1074 for (i = 0; i < 14; i += 2)
1075 printk(" %04x", inw(ioaddr + i));
1076 printk("\n");
1077 }
1078 outw(save, ioaddr + BANK_SELECT);
1079 }
1080 #endif
1081
1082 static int smc_open(struct net_device *dev)
1083 {
1084 struct smc_private *smc = netdev_priv(dev);
1085 struct pcmcia_device *link = smc->p_dev;
1086
1087 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1088 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1089 #ifdef PCMCIA_DEBUG
1090 smc_dump(dev);
1091 #endif
1092
1093 /* Check that the PCMCIA card is still here. */
1094 if (!pcmcia_dev_present(link))
1095 return -ENODEV;
1096 /* Physical device present signature. */
1097 if (check_sig(link) < 0) {
1098 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1099 return -ENODEV;
1100 }
1101 link->open++;
1102
1103 netif_start_queue(dev);
1104 smc->saved_skb = NULL;
1105 smc->packets_waiting = 0;
1106
1107 smc_reset(dev);
1108 init_timer(&smc->media);
1109 smc->media.function = &media_check;
1110 smc->media.data = (u_long) dev;
1111 smc->media.expires = jiffies + HZ;
1112 add_timer(&smc->media);
1113
1114 return 0;
1115 } /* smc_open */
1116
1117 /*====================================================================*/
1118
1119 static int smc_close(struct net_device *dev)
1120 {
1121 struct smc_private *smc = netdev_priv(dev);
1122 struct pcmcia_device *link = smc->p_dev;
1123 unsigned int ioaddr = dev->base_addr;
1124
1125 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1126 dev->name, inw(ioaddr + BANK_SELECT));
1127
1128 netif_stop_queue(dev);
1129
1130 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1131 Don't bother to check for chip present. */
1132 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1133 outw(0, ioaddr + INTERRUPT);
1134 SMC_SELECT_BANK(0);
1135 mask_bits(0xff00, ioaddr + RCR);
1136 mask_bits(0xff00, ioaddr + TCR);
1137
1138 /* Put the chip into power-down mode. */
1139 SMC_SELECT_BANK(1);
1140 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1141
1142 link->open--;
1143 del_timer_sync(&smc->media);
1144
1145 return 0;
1146 } /* smc_close */
1147
1148 /*======================================================================
1149
1150 Transfer a packet to the hardware and trigger the packet send.
1151 This may be called at either from either the Tx queue code
1152 or the interrupt handler.
1153
1154 ======================================================================*/
1155
1156 static void smc_hardware_send_packet(struct net_device * dev)
1157 {
1158 struct smc_private *smc = netdev_priv(dev);
1159 struct sk_buff *skb = smc->saved_skb;
1160 unsigned int ioaddr = dev->base_addr;
1161 u_char packet_no;
1162
1163 if (!skb) {
1164 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1165 return;
1166 }
1167
1168 /* There should be a packet slot waiting. */
1169 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1170 if (packet_no & 0x80) {
1171 /* If not, there is a hardware problem! Likely an ejected card. */
1172 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1173 " failed, status %#2.2x.\n", dev->name, packet_no);
1174 dev_kfree_skb_irq(skb);
1175 smc->saved_skb = NULL;
1176 netif_start_queue(dev);
1177 return;
1178 }
1179
1180 dev->stats.tx_bytes += skb->len;
1181 /* The card should use the just-allocated buffer. */
1182 outw(packet_no, ioaddr + PNR_ARR);
1183 /* point to the beginning of the packet */
1184 outw(PTR_AUTOINC , ioaddr + POINTER);
1185
1186 /* Send the packet length (+6 for status, length and ctl byte)
1187 and the status word (set to zeros). */
1188 {
1189 u_char *buf = skb->data;
1190 u_int length = skb->len; /* The chip will pad to ethernet min. */
1191
1192 pr_debug("%s: Trying to xmit packet of length %d.\n",
1193 dev->name, length);
1194
1195 /* send the packet length: +6 for status word, length, and ctl */
1196 outw(0, ioaddr + DATA_1);
1197 outw(length + 6, ioaddr + DATA_1);
1198 outsw(ioaddr + DATA_1, buf, length >> 1);
1199
1200 /* The odd last byte, if there is one, goes in the control word. */
1201 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1202 }
1203
1204 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1205 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1206 (inw(ioaddr + INTERRUPT) & 0xff00),
1207 ioaddr + INTERRUPT);
1208
1209 /* The chip does the rest of the work. */
1210 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1211
1212 smc->saved_skb = NULL;
1213 dev_kfree_skb_irq(skb);
1214 dev->trans_start = jiffies;
1215 netif_start_queue(dev);
1216 }
1217
1218 /*====================================================================*/
1219
1220 static void smc_tx_timeout(struct net_device *dev)
1221 {
1222 struct smc_private *smc = netdev_priv(dev);
1223 unsigned int ioaddr = dev->base_addr;
1224
1225 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1226 "Tx_status %2.2x status %4.4x.\n",
1227 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1228 dev->stats.tx_errors++;
1229 smc_reset(dev);
1230 dev->trans_start = jiffies; /* prevent tx timeout */
1231 smc->saved_skb = NULL;
1232 netif_wake_queue(dev);
1233 }
1234
1235 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1236 struct net_device *dev)
1237 {
1238 struct smc_private *smc = netdev_priv(dev);
1239 unsigned int ioaddr = dev->base_addr;
1240 u_short num_pages;
1241 short time_out, ir;
1242 unsigned long flags;
1243
1244 netif_stop_queue(dev);
1245
1246 pr_debug("%s: smc_start_xmit(length = %d) called,"
1247 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1248
1249 if (smc->saved_skb) {
1250 /* THIS SHOULD NEVER HAPPEN. */
1251 dev->stats.tx_aborted_errors++;
1252 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1253 dev->name);
1254 return NETDEV_TX_BUSY;
1255 }
1256 smc->saved_skb = skb;
1257
1258 num_pages = skb->len >> 8;
1259
1260 if (num_pages > 7) {
1261 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1262 dev_kfree_skb (skb);
1263 smc->saved_skb = NULL;
1264 dev->stats.tx_dropped++;
1265 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1266 }
1267 /* A packet is now waiting. */
1268 smc->packets_waiting++;
1269
1270 spin_lock_irqsave(&smc->lock, flags);
1271 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1272
1273 /* need MC_RESET to keep the memory consistent. errata? */
1274 if (smc->rx_ovrn) {
1275 outw(MC_RESET, ioaddr + MMU_CMD);
1276 smc->rx_ovrn = 0;
1277 }
1278
1279 /* Allocate the memory; send the packet now if we win. */
1280 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1281 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1282 ir = inw(ioaddr+INTERRUPT);
1283 if (ir & IM_ALLOC_INT) {
1284 /* Acknowledge the interrupt, send the packet. */
1285 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1286 smc_hardware_send_packet(dev); /* Send the packet now.. */
1287 spin_unlock_irqrestore(&smc->lock, flags);
1288 return NETDEV_TX_OK;
1289 }
1290 }
1291
1292 /* Otherwise defer until the Tx-space-allocated interrupt. */
1293 pr_debug("%s: memory allocation deferred.\n", dev->name);
1294 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1295 spin_unlock_irqrestore(&smc->lock, flags);
1296
1297 return NETDEV_TX_OK;
1298 }
1299
1300 /*======================================================================
1301
1302 Handle a Tx anomolous event. Entered while in Window 2.
1303
1304 ======================================================================*/
1305
1306 static void smc_tx_err(struct net_device * dev)
1307 {
1308 struct smc_private *smc = netdev_priv(dev);
1309 unsigned int ioaddr = dev->base_addr;
1310 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1311 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1312 int tx_status;
1313
1314 /* select this as the packet to read from */
1315 outw(packet_no, ioaddr + PNR_ARR);
1316
1317 /* read the first word from this packet */
1318 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1319
1320 tx_status = inw(ioaddr + DATA_1);
1321
1322 dev->stats.tx_errors++;
1323 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1324 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1325 if (tx_status & TS_16COL) {
1326 dev->stats.tx_aborted_errors++;
1327 smc->tx_err++;
1328 }
1329
1330 if (tx_status & TS_SUCCESS) {
1331 printk(KERN_NOTICE "%s: Successful packet caused error "
1332 "interrupt?\n", dev->name);
1333 }
1334 /* re-enable transmit */
1335 SMC_SELECT_BANK(0);
1336 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1337 SMC_SELECT_BANK(2);
1338
1339 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1340
1341 /* one less packet waiting for me */
1342 smc->packets_waiting--;
1343
1344 outw(saved_packet, ioaddr + PNR_ARR);
1345 }
1346
1347 /*====================================================================*/
1348
1349 static void smc_eph_irq(struct net_device *dev)
1350 {
1351 struct smc_private *smc = netdev_priv(dev);
1352 unsigned int ioaddr = dev->base_addr;
1353 u_short card_stats, ephs;
1354
1355 SMC_SELECT_BANK(0);
1356 ephs = inw(ioaddr + EPH);
1357 pr_debug("%s: Ethernet protocol handler interrupt, status"
1358 " %4.4x.\n", dev->name, ephs);
1359 /* Could be a counter roll-over warning: update stats. */
1360 card_stats = inw(ioaddr + COUNTER);
1361 /* single collisions */
1362 dev->stats.collisions += card_stats & 0xF;
1363 card_stats >>= 4;
1364 /* multiple collisions */
1365 dev->stats.collisions += card_stats & 0xF;
1366 #if 0 /* These are for when linux supports these statistics */
1367 card_stats >>= 4; /* deferred */
1368 card_stats >>= 4; /* excess deferred */
1369 #endif
1370 /* If we had a transmit error we must re-enable the transmitter. */
1371 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1372
1373 /* Clear a link error interrupt. */
1374 SMC_SELECT_BANK(1);
1375 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1376 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1377 ioaddr + CONTROL);
1378 SMC_SELECT_BANK(2);
1379 }
1380
1381 /*====================================================================*/
1382
1383 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1384 {
1385 struct net_device *dev = dev_id;
1386 struct smc_private *smc = netdev_priv(dev);
1387 unsigned int ioaddr;
1388 u_short saved_bank, saved_pointer, mask, status;
1389 unsigned int handled = 1;
1390 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1391
1392 if (!netif_device_present(dev))
1393 return IRQ_NONE;
1394
1395 ioaddr = dev->base_addr;
1396
1397 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1398 irq, ioaddr);
1399
1400 spin_lock(&smc->lock);
1401 smc->watchdog = 0;
1402 saved_bank = inw(ioaddr + BANK_SELECT);
1403 if ((saved_bank & 0xff00) != 0x3300) {
1404 /* The device does not exist -- the card could be off-line, or
1405 maybe it has been ejected. */
1406 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1407 "/ejected device.\n", dev->name, irq);
1408 handled = 0;
1409 goto irq_done;
1410 }
1411
1412 SMC_SELECT_BANK(2);
1413 saved_pointer = inw(ioaddr + POINTER);
1414 mask = inw(ioaddr + INTERRUPT) >> 8;
1415 /* clear all interrupts */
1416 outw(0, ioaddr + INTERRUPT);
1417
1418 do { /* read the status flag, and mask it */
1419 status = inw(ioaddr + INTERRUPT) & 0xff;
1420 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1421 status, mask);
1422 if ((status & mask) == 0) {
1423 if (bogus_cnt == INTR_WORK)
1424 handled = 0;
1425 break;
1426 }
1427 if (status & IM_RCV_INT) {
1428 /* Got a packet(s). */
1429 smc_rx(dev);
1430 }
1431 if (status & IM_TX_INT) {
1432 smc_tx_err(dev);
1433 outw(IM_TX_INT, ioaddr + INTERRUPT);
1434 }
1435 status &= mask;
1436 if (status & IM_TX_EMPTY_INT) {
1437 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1438 mask &= ~IM_TX_EMPTY_INT;
1439 dev->stats.tx_packets += smc->packets_waiting;
1440 smc->packets_waiting = 0;
1441 }
1442 if (status & IM_ALLOC_INT) {
1443 /* Clear this interrupt so it doesn't happen again */
1444 mask &= ~IM_ALLOC_INT;
1445
1446 smc_hardware_send_packet(dev);
1447
1448 /* enable xmit interrupts based on this */
1449 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1450
1451 /* and let the card send more packets to me */
1452 netif_wake_queue(dev);
1453 }
1454 if (status & IM_RX_OVRN_INT) {
1455 dev->stats.rx_errors++;
1456 dev->stats.rx_fifo_errors++;
1457 if (smc->duplex)
1458 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1459 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1460 }
1461 if (status & IM_EPH_INT)
1462 smc_eph_irq(dev);
1463 } while (--bogus_cnt);
1464
1465 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1466 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1467
1468 /* restore state register */
1469 outw((mask<<8), ioaddr + INTERRUPT);
1470 outw(saved_pointer, ioaddr + POINTER);
1471 SMC_SELECT_BANK(saved_bank);
1472
1473 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1474
1475 irq_done:
1476
1477 if ((smc->manfid == MANFID_OSITECH) &&
1478 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1479 /* Retrigger interrupt if needed */
1480 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1481 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1482 }
1483 if (smc->manfid == MANFID_MOTOROLA) {
1484 u_char cor;
1485 cor = readb(smc->base + MOT_UART + CISREG_COR);
1486 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1487 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1488 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1489 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1490 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1491 }
1492
1493 if ((smc->base != NULL) && /* Megahertz MFC's */
1494 (smc->manfid == MANFID_MEGAHERTZ) &&
1495 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
1496
1497 u_char tmp;
1498 tmp = readb(smc->base+MEGAHERTZ_ISR);
1499 tmp = readb(smc->base+MEGAHERTZ_ISR);
1500
1501 /* Retrigger interrupt if needed */
1502 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1503 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1504 }
1505
1506 spin_unlock(&smc->lock);
1507 return IRQ_RETVAL(handled);
1508 }
1509
1510 /*====================================================================*/
1511
1512 static void smc_rx(struct net_device *dev)
1513 {
1514 unsigned int ioaddr = dev->base_addr;
1515 int rx_status;
1516 int packet_length; /* Caution: not frame length, rather words
1517 to transfer from the chip. */
1518
1519 /* Assertion: we are in Window 2. */
1520
1521 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1522 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1523 dev->name);
1524 return;
1525 }
1526
1527 /* Reset the read pointer, and read the status and packet length. */
1528 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1529 rx_status = inw(ioaddr + DATA_1);
1530 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1531
1532 pr_debug("%s: Receive status %4.4x length %d.\n",
1533 dev->name, rx_status, packet_length);
1534
1535 if (!(rx_status & RS_ERRORS)) {
1536 /* do stuff to make a new packet */
1537 struct sk_buff *skb;
1538
1539 /* Note: packet_length adds 5 or 6 extra bytes here! */
1540 skb = dev_alloc_skb(packet_length+2);
1541
1542 if (skb == NULL) {
1543 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1544 dev->stats.rx_dropped++;
1545 outw(MC_RELEASE, ioaddr + MMU_CMD);
1546 return;
1547 }
1548
1549 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1550 skb_reserve(skb, 2);
1551 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1552 (packet_length+1)>>1);
1553 skb->protocol = eth_type_trans(skb, dev);
1554
1555 netif_rx(skb);
1556 dev->last_rx = jiffies;
1557 dev->stats.rx_packets++;
1558 dev->stats.rx_bytes += packet_length;
1559 if (rx_status & RS_MULTICAST)
1560 dev->stats.multicast++;
1561 } else {
1562 /* error ... */
1563 dev->stats.rx_errors++;
1564
1565 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1566 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1567 dev->stats.rx_length_errors++;
1568 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1569 }
1570 /* Let the MMU free the memory of this packet. */
1571 outw(MC_RELEASE, ioaddr + MMU_CMD);
1572 }
1573
1574 /*======================================================================
1575
1576 Set the receive mode.
1577
1578 This routine is used by both the protocol level to notify us of
1579 promiscuous/multicast mode changes, and by the open/reset code to
1580 initialize the Rx registers. We always set the multicast list and
1581 leave the receiver running.
1582
1583 ======================================================================*/
1584
1585 static void set_rx_mode(struct net_device *dev)
1586 {
1587 unsigned int ioaddr = dev->base_addr;
1588 struct smc_private *smc = netdev_priv(dev);
1589 unsigned char multicast_table[8];
1590 unsigned long flags;
1591 u_short rx_cfg_setting;
1592 int i;
1593
1594 memset(multicast_table, 0, sizeof(multicast_table));
1595
1596 if (dev->flags & IFF_PROMISC) {
1597 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1598 } else if (dev->flags & IFF_ALLMULTI)
1599 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1600 else {
1601 if (!netdev_mc_empty(dev)) {
1602 struct netdev_hw_addr *ha;
1603
1604 netdev_for_each_mc_addr(ha, dev) {
1605 u_int position = ether_crc(6, ha->addr);
1606 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1607 }
1608 }
1609 rx_cfg_setting = RxStripCRC | RxEnable;
1610 }
1611
1612 /* Load MC table and Rx setting into the chip without interrupts. */
1613 spin_lock_irqsave(&smc->lock, flags);
1614 SMC_SELECT_BANK(3);
1615 for (i = 0; i < 8; i++)
1616 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1617 SMC_SELECT_BANK(0);
1618 outw(rx_cfg_setting, ioaddr + RCR);
1619 SMC_SELECT_BANK(2);
1620 spin_unlock_irqrestore(&smc->lock, flags);
1621 }
1622
1623 /*======================================================================
1624
1625 Senses when a card's config changes. Here, it's coax or TP.
1626
1627 ======================================================================*/
1628
1629 static int s9k_config(struct net_device *dev, struct ifmap *map)
1630 {
1631 struct smc_private *smc = netdev_priv(dev);
1632 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1633 if (smc->cfg & CFG_MII_SELECT)
1634 return -EOPNOTSUPP;
1635 else if (map->port > 2)
1636 return -EINVAL;
1637 dev->if_port = map->port;
1638 printk(KERN_INFO "%s: switched to %s port\n",
1639 dev->name, if_names[dev->if_port]);
1640 smc_reset(dev);
1641 }
1642 return 0;
1643 }
1644
1645 /*======================================================================
1646
1647 Reset the chip, reloading every register that might be corrupted.
1648
1649 ======================================================================*/
1650
1651 /*
1652 Set transceiver type, perhaps to something other than what the user
1653 specified in dev->if_port.
1654 */
1655 static void smc_set_xcvr(struct net_device *dev, int if_port)
1656 {
1657 struct smc_private *smc = netdev_priv(dev);
1658 unsigned int ioaddr = dev->base_addr;
1659 u_short saved_bank;
1660
1661 saved_bank = inw(ioaddr + BANK_SELECT);
1662 SMC_SELECT_BANK(1);
1663 if (if_port == 2) {
1664 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1665 if ((smc->manfid == MANFID_OSITECH) &&
1666 (smc->cardid != PRODID_OSITECH_SEVEN))
1667 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1668 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1669 } else {
1670 outw(smc->cfg, ioaddr + CONFIG);
1671 if ((smc->manfid == MANFID_OSITECH) &&
1672 (smc->cardid != PRODID_OSITECH_SEVEN))
1673 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1674 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1675 }
1676 SMC_SELECT_BANK(saved_bank);
1677 }
1678
1679 static void smc_reset(struct net_device *dev)
1680 {
1681 unsigned int ioaddr = dev->base_addr;
1682 struct smc_private *smc = netdev_priv(dev);
1683 int i;
1684
1685 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1686
1687 /* The first interaction must be a write to bring the chip out
1688 of sleep mode. */
1689 SMC_SELECT_BANK(0);
1690 /* Reset the chip. */
1691 outw(RCR_SOFTRESET, ioaddr + RCR);
1692 udelay(10);
1693
1694 /* Clear the transmit and receive configuration registers. */
1695 outw(RCR_CLEAR, ioaddr + RCR);
1696 outw(TCR_CLEAR, ioaddr + TCR);
1697
1698 /* Set the Window 1 control, configuration and station addr registers.
1699 No point in writing the I/O base register ;-> */
1700 SMC_SELECT_BANK(1);
1701 /* Automatically release successfully transmitted packets,
1702 Accept link errors, counter and Tx error interrupts. */
1703 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1704 ioaddr + CONTROL);
1705 smc_set_xcvr(dev, dev->if_port);
1706 if ((smc->manfid == MANFID_OSITECH) &&
1707 (smc->cardid != PRODID_OSITECH_SEVEN))
1708 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1709 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1710 ioaddr - 0x10 + OSITECH_AUI_PWR);
1711
1712 /* Fill in the physical address. The databook is wrong about the order! */
1713 for (i = 0; i < 6; i += 2)
1714 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1715 ioaddr + ADDR0 + i);
1716
1717 /* Reset the MMU */
1718 SMC_SELECT_BANK(2);
1719 outw(MC_RESET, ioaddr + MMU_CMD);
1720 outw(0, ioaddr + INTERRUPT);
1721
1722 /* Re-enable the chip. */
1723 SMC_SELECT_BANK(0);
1724 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1725 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1726 set_rx_mode(dev);
1727
1728 if (smc->cfg & CFG_MII_SELECT) {
1729 SMC_SELECT_BANK(3);
1730
1731 /* Reset MII */
1732 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1733
1734 /* Advertise 100F, 100H, 10F, 10H */
1735 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1736
1737 /* Restart MII autonegotiation */
1738 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1739 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1740 }
1741
1742 /* Enable interrupts. */
1743 SMC_SELECT_BANK(2);
1744 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1745 ioaddr + INTERRUPT);
1746 }
1747
1748 /*======================================================================
1749
1750 Media selection timer routine
1751
1752 ======================================================================*/
1753
1754 static void media_check(u_long arg)
1755 {
1756 struct net_device *dev = (struct net_device *) arg;
1757 struct smc_private *smc = netdev_priv(dev);
1758 unsigned int ioaddr = dev->base_addr;
1759 u_short i, media, saved_bank;
1760 u_short link;
1761 unsigned long flags;
1762
1763 spin_lock_irqsave(&smc->lock, flags);
1764
1765 saved_bank = inw(ioaddr + BANK_SELECT);
1766
1767 if (!netif_device_present(dev))
1768 goto reschedule;
1769
1770 SMC_SELECT_BANK(2);
1771
1772 /* need MC_RESET to keep the memory consistent. errata? */
1773 if (smc->rx_ovrn) {
1774 outw(MC_RESET, ioaddr + MMU_CMD);
1775 smc->rx_ovrn = 0;
1776 }
1777 i = inw(ioaddr + INTERRUPT);
1778 SMC_SELECT_BANK(0);
1779 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1780 SMC_SELECT_BANK(1);
1781 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1782
1783 SMC_SELECT_BANK(saved_bank);
1784 spin_unlock_irqrestore(&smc->lock, flags);
1785
1786 /* Check for pending interrupt with watchdog flag set: with
1787 this, we can limp along even if the interrupt is blocked */
1788 if (smc->watchdog++ && ((i>>8) & i)) {
1789 if (!smc->fast_poll)
1790 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1791 local_irq_save(flags);
1792 smc_interrupt(dev->irq, dev);
1793 local_irq_restore(flags);
1794 smc->fast_poll = HZ;
1795 }
1796 if (smc->fast_poll) {
1797 smc->fast_poll--;
1798 smc->media.expires = jiffies + HZ/100;
1799 add_timer(&smc->media);
1800 return;
1801 }
1802
1803 spin_lock_irqsave(&smc->lock, flags);
1804
1805 saved_bank = inw(ioaddr + BANK_SELECT);
1806
1807 if (smc->cfg & CFG_MII_SELECT) {
1808 if (smc->mii_if.phy_id < 0)
1809 goto reschedule;
1810
1811 SMC_SELECT_BANK(3);
1812 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1813 if (!link || (link == 0xffff)) {
1814 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1815 smc->mii_if.phy_id = -1;
1816 goto reschedule;
1817 }
1818
1819 link &= 0x0004;
1820 if (link != smc->link_status) {
1821 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1822 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1823 (link) ? "found" : "lost");
1824 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1825 ? TCR_FDUPLX : 0);
1826 if (link) {
1827 printk(KERN_INFO "%s: autonegotiation complete: "
1828 "%sbaseT-%cD selected\n", dev->name,
1829 ((p & 0x0180) ? "100" : "10"),
1830 (smc->duplex ? 'F' : 'H'));
1831 }
1832 SMC_SELECT_BANK(0);
1833 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1834 smc->link_status = link;
1835 }
1836 goto reschedule;
1837 }
1838
1839 /* Ignore collisions unless we've had no rx's recently */
1840 if (time_after(jiffies, dev->last_rx + HZ)) {
1841 if (smc->tx_err || (smc->media_status & EPH_16COL))
1842 media |= EPH_16COL;
1843 }
1844 smc->tx_err = 0;
1845
1846 if (media != smc->media_status) {
1847 if ((media & smc->media_status & 1) &&
1848 ((smc->media_status ^ media) & EPH_LINK_OK))
1849 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1850 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1851 else if ((media & smc->media_status & 2) &&
1852 ((smc->media_status ^ media) & EPH_16COL))
1853 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1854 (media & EPH_16COL ? "problem" : "ok"));
1855 if (dev->if_port == 0) {
1856 if (media & 1) {
1857 if (media & EPH_LINK_OK)
1858 printk(KERN_INFO "%s: flipped to 10baseT\n",
1859 dev->name);
1860 else
1861 smc_set_xcvr(dev, 2);
1862 } else {
1863 if (media & EPH_16COL)
1864 smc_set_xcvr(dev, 1);
1865 else
1866 printk(KERN_INFO "%s: flipped to 10base2\n",
1867 dev->name);
1868 }
1869 }
1870 smc->media_status = media;
1871 }
1872
1873 reschedule:
1874 smc->media.expires = jiffies + HZ;
1875 add_timer(&smc->media);
1876 SMC_SELECT_BANK(saved_bank);
1877 spin_unlock_irqrestore(&smc->lock, flags);
1878 }
1879
1880 static int smc_link_ok(struct net_device *dev)
1881 {
1882 unsigned int ioaddr = dev->base_addr;
1883 struct smc_private *smc = netdev_priv(dev);
1884
1885 if (smc->cfg & CFG_MII_SELECT) {
1886 return mii_link_ok(&smc->mii_if);
1887 } else {
1888 SMC_SELECT_BANK(0);
1889 return inw(ioaddr + EPH) & EPH_LINK_OK;
1890 }
1891 }
1892
1893 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1894 {
1895 u16 tmp;
1896 unsigned int ioaddr = dev->base_addr;
1897
1898 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1899 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1900
1901 SMC_SELECT_BANK(1);
1902 tmp = inw(ioaddr + CONFIG);
1903 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1904 ecmd->transceiver = XCVR_INTERNAL;
1905 ecmd->speed = SPEED_10;
1906 ecmd->phy_address = ioaddr + MGMT;
1907
1908 SMC_SELECT_BANK(0);
1909 tmp = inw(ioaddr + TCR);
1910 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1911
1912 return 0;
1913 }
1914
1915 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1916 {
1917 u16 tmp;
1918 unsigned int ioaddr = dev->base_addr;
1919
1920 if (ecmd->speed != SPEED_10)
1921 return -EINVAL;
1922 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1923 return -EINVAL;
1924 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1925 return -EINVAL;
1926 if (ecmd->transceiver != XCVR_INTERNAL)
1927 return -EINVAL;
1928
1929 if (ecmd->port == PORT_AUI)
1930 smc_set_xcvr(dev, 1);
1931 else
1932 smc_set_xcvr(dev, 0);
1933
1934 SMC_SELECT_BANK(0);
1935 tmp = inw(ioaddr + TCR);
1936 if (ecmd->duplex == DUPLEX_FULL)
1937 tmp |= TCR_FDUPLX;
1938 else
1939 tmp &= ~TCR_FDUPLX;
1940 outw(tmp, ioaddr + TCR);
1941
1942 return 0;
1943 }
1944
1945 static int check_if_running(struct net_device *dev)
1946 {
1947 if (!netif_running(dev))
1948 return -EINVAL;
1949 return 0;
1950 }
1951
1952 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1953 {
1954 strcpy(info->driver, DRV_NAME);
1955 strcpy(info->version, DRV_VERSION);
1956 }
1957
1958 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1959 {
1960 struct smc_private *smc = netdev_priv(dev);
1961 unsigned int ioaddr = dev->base_addr;
1962 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1963 int ret;
1964 unsigned long flags;
1965
1966 spin_lock_irqsave(&smc->lock, flags);
1967 SMC_SELECT_BANK(3);
1968 if (smc->cfg & CFG_MII_SELECT)
1969 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1970 else
1971 ret = smc_netdev_get_ecmd(dev, ecmd);
1972 SMC_SELECT_BANK(saved_bank);
1973 spin_unlock_irqrestore(&smc->lock, flags);
1974 return ret;
1975 }
1976
1977 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1978 {
1979 struct smc_private *smc = netdev_priv(dev);
1980 unsigned int ioaddr = dev->base_addr;
1981 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1982 int ret;
1983 unsigned long flags;
1984
1985 spin_lock_irqsave(&smc->lock, flags);
1986 SMC_SELECT_BANK(3);
1987 if (smc->cfg & CFG_MII_SELECT)
1988 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
1989 else
1990 ret = smc_netdev_set_ecmd(dev, ecmd);
1991 SMC_SELECT_BANK(saved_bank);
1992 spin_unlock_irqrestore(&smc->lock, flags);
1993 return ret;
1994 }
1995
1996 static u32 smc_get_link(struct net_device *dev)
1997 {
1998 struct smc_private *smc = netdev_priv(dev);
1999 unsigned int ioaddr = dev->base_addr;
2000 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2001 u32 ret;
2002 unsigned long flags;
2003
2004 spin_lock_irqsave(&smc->lock, flags);
2005 SMC_SELECT_BANK(3);
2006 ret = smc_link_ok(dev);
2007 SMC_SELECT_BANK(saved_bank);
2008 spin_unlock_irqrestore(&smc->lock, flags);
2009 return ret;
2010 }
2011
2012 static int smc_nway_reset(struct net_device *dev)
2013 {
2014 struct smc_private *smc = netdev_priv(dev);
2015 if (smc->cfg & CFG_MII_SELECT) {
2016 unsigned int ioaddr = dev->base_addr;
2017 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2018 int res;
2019
2020 SMC_SELECT_BANK(3);
2021 res = mii_nway_restart(&smc->mii_if);
2022 SMC_SELECT_BANK(saved_bank);
2023
2024 return res;
2025 } else
2026 return -EOPNOTSUPP;
2027 }
2028
2029 static const struct ethtool_ops ethtool_ops = {
2030 .begin = check_if_running,
2031 .get_drvinfo = smc_get_drvinfo,
2032 .get_settings = smc_get_settings,
2033 .set_settings = smc_set_settings,
2034 .get_link = smc_get_link,
2035 .nway_reset = smc_nway_reset,
2036 };
2037
2038 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2039 {
2040 struct smc_private *smc = netdev_priv(dev);
2041 struct mii_ioctl_data *mii = if_mii(rq);
2042 int rc = 0;
2043 u16 saved_bank;
2044 unsigned int ioaddr = dev->base_addr;
2045 unsigned long flags;
2046
2047 if (!netif_running(dev))
2048 return -EINVAL;
2049
2050 spin_lock_irqsave(&smc->lock, flags);
2051 saved_bank = inw(ioaddr + BANK_SELECT);
2052 SMC_SELECT_BANK(3);
2053 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2054 SMC_SELECT_BANK(saved_bank);
2055 spin_unlock_irqrestore(&smc->lock, flags);
2056 return rc;
2057 }
2058
2059 static struct pcmcia_device_id smc91c92_ids[] = {
2060 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2061 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2062 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2063 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2064 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2065 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2066 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2067 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2068 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2069 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2070 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2071 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2072 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2073 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2074 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2075 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2076 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2077 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2078 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2079 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2080 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2081 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2082 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2083 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2084 /* These conflict with other cards! */
2085 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2086 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2087 PCMCIA_DEVICE_NULL,
2088 };
2089 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2090
2091 static struct pcmcia_driver smc91c92_cs_driver = {
2092 .owner = THIS_MODULE,
2093 .name = "smc91c92_cs",
2094 .probe = smc91c92_probe,
2095 .remove = smc91c92_detach,
2096 .id_table = smc91c92_ids,
2097 .suspend = smc91c92_suspend,
2098 .resume = smc91c92_resume,
2099 };
2100
2101 static int __init init_smc91c92_cs(void)
2102 {
2103 return pcmcia_register_driver(&smc91c92_cs_driver);
2104 }
2105
2106 static void __exit exit_smc91c92_cs(void)
2107 {
2108 pcmcia_unregister_driver(&smc91c92_cs_driver);
2109 }
2110
2111 module_init(init_smc91c92_cs);
2112 module_exit(exit_smc91c92_cs);
Linux kernel - Deliverables
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