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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / net / ethernet / smsc / smc91c92_cs.c
blobada927aba7a517f64804b06852e33f1f4c2ede39
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
29
30 #include <linux/module.h>
31 #include <linux/kernel.h>
32 #include <linux/init.h>
33 #include <linux/slab.h>
34 #include <linux/string.h>
35 #include <linux/timer.h>
36 #include <linux/interrupt.h>
37 #include <linux/delay.h>
38 #include <linux/crc32.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/skbuff.h>
42 #include <linux/if_arp.h>
43 #include <linux/ioport.h>
44 #include <linux/ethtool.h>
45 #include <linux/mii.h>
46 #include <linux/jiffies.h>
47 #include <linux/firmware.h>
48
49 #include <pcmcia/cistpl.h>
50 #include <pcmcia/cisreg.h>
51 #include <pcmcia/ciscode.h>
52 #include <pcmcia/ds.h>
53 #include <pcmcia/ss.h>
54
55 #include <asm/io.h>
56 #include <asm/system.h>
57 #include <asm/uaccess.h>
58
59 /*====================================================================*/
60
61 static const char *if_names[] = { "auto", "10baseT", "10base2"};
62
63 /* Firmware name */
64 #define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
65
66 /* Module parameters */
67
68 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
69 MODULE_LICENSE("GPL");
70 MODULE_FIRMWARE(FIRMWARE_NAME);
71
72 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
73
74 /*
75 Transceiver/media type.
76 0 = auto
77 1 = 10baseT (and autoselect if #define AUTOSELECT),
78 2 = AUI/10base2,
79 */
80 INT_MODULE_PARM(if_port, 0);
81
82
83 #define DRV_NAME "smc91c92_cs"
84 #define DRV_VERSION "1.123"
85
86 /*====================================================================*/
87
88 /* Operational parameter that usually are not changed. */
89
90 /* Time in jiffies before concluding Tx hung */
91 #define TX_TIMEOUT ((400*HZ)/1000)
92
93 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
94 #define INTR_WORK 4
95
96 /* Times to check the check the chip before concluding that it doesn't
97 currently have room for another Tx packet. */
98 #define MEMORY_WAIT_TIME 8
99
100 struct smc_private {
101 struct pcmcia_device *p_dev;
102 spinlock_t lock;
103 u_short manfid;
104 u_short cardid;
105
106 struct sk_buff *saved_skb;
107 int packets_waiting;
108 void __iomem *base;
109 u_short cfg;
110 struct timer_list media;
111 int watchdog, tx_err;
112 u_short media_status;
113 u_short fast_poll;
114 u_short link_status;
115 struct mii_if_info mii_if;
116 int duplex;
117 int rx_ovrn;
118 };
119
120 /* Special definitions for Megahertz multifunction cards */
121 #define MEGAHERTZ_ISR 0x0380
122
123 /* Special function registers for Motorola Mariner */
124 #define MOT_LAN 0x0000
125 #define MOT_UART 0x0020
126 #define MOT_EEPROM 0x20
127
128 #define MOT_NORMAL \
129 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
130
131 /* Special function registers for Ositech cards */
132 #define OSITECH_AUI_CTL 0x0c
133 #define OSITECH_PWRDOWN 0x0d
134 #define OSITECH_RESET 0x0e
135 #define OSITECH_ISR 0x0f
136 #define OSITECH_AUI_PWR 0x0c
137 #define OSITECH_RESET_ISR 0x0e
138
139 #define OSI_AUI_PWR 0x40
140 #define OSI_LAN_PWRDOWN 0x02
141 #define OSI_MODEM_PWRDOWN 0x01
142 #define OSI_LAN_RESET 0x02
143 #define OSI_MODEM_RESET 0x01
144
145 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
146 #define BANK_SELECT 14 /* Window select register. */
147 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
148
149 /* Bank 0 registers. */
150 #define TCR 0 /* transmit control register */
151 #define TCR_CLEAR 0 /* do NOTHING */
152 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
153 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
154 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
155 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
156 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
157
158 #define EPH 2 /* Ethernet Protocol Handler report. */
159 #define EPH_TX_SUC 0x0001
160 #define EPH_SNGLCOL 0x0002
161 #define EPH_MULCOL 0x0004
162 #define EPH_LTX_MULT 0x0008
163 #define EPH_16COL 0x0010
164 #define EPH_SQET 0x0020
165 #define EPH_LTX_BRD 0x0040
166 #define EPH_TX_DEFR 0x0080
167 #define EPH_LAT_COL 0x0200
168 #define EPH_LOST_CAR 0x0400
169 #define EPH_EXC_DEF 0x0800
170 #define EPH_CTR_ROL 0x1000
171 #define EPH_RX_OVRN 0x2000
172 #define EPH_LINK_OK 0x4000
173 #define EPH_TX_UNRN 0x8000
174 #define MEMINFO 8 /* Memory Information Register */
175 #define MEMCFG 10 /* Memory Configuration Register */
176
177 /* Bank 1 registers. */
178 #define CONFIG 0
179 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
180 #define CFG_NO_WAIT 0x1000
181 #define CFG_FULL_STEP 0x0400
182 #define CFG_SET_SQLCH 0x0200
183 #define CFG_AUI_SELECT 0x0100
184 #define CFG_16BIT 0x0080
185 #define CFG_DIS_LINK 0x0040
186 #define CFG_STATIC 0x0030
187 #define CFG_IRQ_SEL_1 0x0004
188 #define CFG_IRQ_SEL_0 0x0002
189 #define BASE_ADDR 2
190 #define ADDR0 4
191 #define GENERAL 10
192 #define CONTROL 12
193 #define CTL_STORE 0x0001
194 #define CTL_RELOAD 0x0002
195 #define CTL_EE_SELECT 0x0004
196 #define CTL_TE_ENABLE 0x0020
197 #define CTL_CR_ENABLE 0x0040
198 #define CTL_LE_ENABLE 0x0080
199 #define CTL_AUTO_RELEASE 0x0800
200 #define CTL_POWERDOWN 0x2000
201
202 /* Bank 2 registers. */
203 #define MMU_CMD 0
204 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
205 #define MC_RESET 0x40
206 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
207 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
208 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
209 #define PNR_ARR 2
210 #define FIFO_PORTS 4
211 #define FP_RXEMPTY 0x8000
212 #define POINTER 6
213 #define PTR_AUTO_INC 0x0040
214 #define PTR_READ 0x2000
215 #define PTR_AUTOINC 0x4000
216 #define PTR_RCV 0x8000
217 #define DATA_1 8
218 #define INTERRUPT 12
219 #define IM_RCV_INT 0x1
220 #define IM_TX_INT 0x2
221 #define IM_TX_EMPTY_INT 0x4
222 #define IM_ALLOC_INT 0x8
223 #define IM_RX_OVRN_INT 0x10
224 #define IM_EPH_INT 0x20
225
226 #define RCR 4
227 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
228 RxEnable = 0x0100, RxStripCRC = 0x0200};
229 #define RCR_SOFTRESET 0x8000 /* resets the chip */
230 #define RCR_STRIP_CRC 0x200 /* strips CRC */
231 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
232 #define RCR_ALMUL 0x4 /* receive all multicast packets */
233 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
234
235 /* the normal settings for the RCR register : */
236 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
237 #define RCR_CLEAR 0x0 /* set it to a base state */
238 #define COUNTER 6
239
240 /* BANK 3 -- not the same values as in smc9194! */
241 #define MULTICAST0 0
242 #define MULTICAST2 2
243 #define MULTICAST4 4
244 #define MULTICAST6 6
245 #define MGMT 8
246 #define REVISION 0x0a
247
248 /* Transmit status bits. */
249 #define TS_SUCCESS 0x0001
250 #define TS_16COL 0x0010
251 #define TS_LATCOL 0x0200
252 #define TS_LOSTCAR 0x0400
253
254 /* Receive status bits. */
255 #define RS_ALGNERR 0x8000
256 #define RS_BADCRC 0x2000
257 #define RS_ODDFRAME 0x1000
258 #define RS_TOOLONG 0x0800
259 #define RS_TOOSHORT 0x0400
260 #define RS_MULTICAST 0x0001
261 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
262
263 #define set_bits(v, p) outw(inw(p)|(v), (p))
264 #define mask_bits(v, p) outw(inw(p)&(v), (p))
265
266 /*====================================================================*/
267
268 static void smc91c92_detach(struct pcmcia_device *p_dev);
269 static int smc91c92_config(struct pcmcia_device *link);
270 static void smc91c92_release(struct pcmcia_device *link);
271
272 static int smc_open(struct net_device *dev);
273 static int smc_close(struct net_device *dev);
274 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
275 static void smc_tx_timeout(struct net_device *dev);
276 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
277 struct net_device *dev);
278 static irqreturn_t smc_interrupt(int irq, void *dev_id);
279 static void smc_rx(struct net_device *dev);
280 static void set_rx_mode(struct net_device *dev);
281 static int s9k_config(struct net_device *dev, struct ifmap *map);
282 static void smc_set_xcvr(struct net_device *dev, int if_port);
283 static void smc_reset(struct net_device *dev);
284 static void media_check(u_long arg);
285 static void mdio_sync(unsigned int addr);
286 static int mdio_read(struct net_device *dev, int phy_id, int loc);
287 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
288 static int smc_link_ok(struct net_device *dev);
289 static const struct ethtool_ops ethtool_ops;
290
291 static const struct net_device_ops smc_netdev_ops = {
292 .ndo_open = smc_open,
293 .ndo_stop = smc_close,
294 .ndo_start_xmit = smc_start_xmit,
295 .ndo_tx_timeout = smc_tx_timeout,
296 .ndo_set_config = s9k_config,
297 .ndo_set_rx_mode = set_rx_mode,
298 .ndo_do_ioctl = smc_ioctl,
299 .ndo_change_mtu = eth_change_mtu,
300 .ndo_set_mac_address = eth_mac_addr,
301 .ndo_validate_addr = eth_validate_addr,
302 };
303
304 static int smc91c92_probe(struct pcmcia_device *link)
305 {
306 struct smc_private *smc;
307 struct net_device *dev;
308
309 dev_dbg(&link->dev, "smc91c92_attach()\n");
310
311 /* Create new ethernet device */
312 dev = alloc_etherdev(sizeof(struct smc_private));
313 if (!dev)
314 return -ENOMEM;
315 smc = netdev_priv(dev);
316 smc->p_dev = link;
317 link->priv = dev;
318
319 spin_lock_init(&smc->lock);
320
321 /* The SMC91c92-specific entries in the device structure. */
322 dev->netdev_ops = &smc_netdev_ops;
323 SET_ETHTOOL_OPS(dev, &ethtool_ops);
324 dev->watchdog_timeo = TX_TIMEOUT;
325
326 smc->mii_if.dev = dev;
327 smc->mii_if.mdio_read = mdio_read;
328 smc->mii_if.mdio_write = mdio_write;
329 smc->mii_if.phy_id_mask = 0x1f;
330 smc->mii_if.reg_num_mask = 0x1f;
331
332 return smc91c92_config(link);
333 } /* smc91c92_attach */
334
335 static void smc91c92_detach(struct pcmcia_device *link)
336 {
337 struct net_device *dev = link->priv;
338
339 dev_dbg(&link->dev, "smc91c92_detach\n");
340
341 unregister_netdev(dev);
342
343 smc91c92_release(link);
344
345 free_netdev(dev);
346 } /* smc91c92_detach */
347
348 /*====================================================================*/
349
350 static int cvt_ascii_address(struct net_device *dev, char *s)
351 {
352 int i, j, da, c;
353
354 if (strlen(s) != 12)
355 return -1;
356 for (i = 0; i < 6; i++) {
357 da = 0;
358 for (j = 0; j < 2; j++) {
359 c = *s++;
360 da <<= 4;
361 da += ((c >= '0') && (c <= '9')) ?
362 (c - '0') : ((c & 0x0f) + 9);
363 }
364 dev->dev_addr[i] = da;
365 }
366 return 0;
367 }
368
369 /*====================================================================
370
371 Configuration stuff for Megahertz cards
372
373 mhz_3288_power() is used to power up a 3288's ethernet chip.
374 mhz_mfc_config() handles socket setup for multifunction (1144
375 and 3288) cards. mhz_setup() gets a card's hardware ethernet
376 address.
377
378 ======================================================================*/
379
380 static int mhz_3288_power(struct pcmcia_device *link)
381 {
382 struct net_device *dev = link->priv;
383 struct smc_private *smc = netdev_priv(dev);
384 u_char tmp;
385
386 /* Read the ISR twice... */
387 readb(smc->base+MEGAHERTZ_ISR);
388 udelay(5);
389 readb(smc->base+MEGAHERTZ_ISR);
390
391 /* Pause 200ms... */
392 mdelay(200);
393
394 /* Now read and write the COR... */
395 tmp = readb(smc->base + link->config_base + CISREG_COR);
396 udelay(5);
397 writeb(tmp, smc->base + link->config_base + CISREG_COR);
398
399 return 0;
400 }
401
402 static int mhz_mfc_config_check(struct pcmcia_device *p_dev, void *priv_data)
403 {
404 int k;
405 p_dev->io_lines = 16;
406 p_dev->resource[1]->start = p_dev->resource[0]->start;
407 p_dev->resource[1]->end = 8;
408 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
409 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
410 p_dev->resource[0]->end = 16;
411 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
412 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
413 for (k = 0; k < 0x400; k += 0x10) {
414 if (k & 0x80)
415 continue;
416 p_dev->resource[0]->start = k ^ 0x300;
417 if (!pcmcia_request_io(p_dev))
418 return 0;
419 }
420 return -ENODEV;
421 }
422
423 static int mhz_mfc_config(struct pcmcia_device *link)
424 {
425 struct net_device *dev = link->priv;
426 struct smc_private *smc = netdev_priv(dev);
427 unsigned int offset;
428 int i;
429
430 link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ |
431 CONF_AUTO_SET_IO;
432
433 /* The Megahertz combo cards have modem-like CIS entries, so
434 we have to explicitly try a bunch of port combinations. */
435 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
436 return -ENODEV;
437
438 dev->base_addr = link->resource[0]->start;
439
440 /* Allocate a memory window, for accessing the ISR */
441 link->resource[2]->flags = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
442 link->resource[2]->start = link->resource[2]->end = 0;
443 i = pcmcia_request_window(link, link->resource[2], 0);
444 if (i != 0)
445 return -ENODEV;
446
447 smc->base = ioremap(link->resource[2]->start,
448 resource_size(link->resource[2]));
449 offset = (smc->manfid == MANFID_MOTOROLA) ? link->config_base : 0;
450 i = pcmcia_map_mem_page(link, link->resource[2], offset);
451 if ((i == 0) &&
452 (smc->manfid == MANFID_MEGAHERTZ) &&
453 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
454 mhz_3288_power(link);
455
456 return 0;
457 }
458
459 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
460 tuple_t *tuple,
461 void *priv)
462 {
463 struct net_device *dev = priv;
464 cisparse_t parse;
465 u8 *buf;
466
467 if (pcmcia_parse_tuple(tuple, &parse))
468 return -EINVAL;
469
470 buf = parse.version_1.str + parse.version_1.ofs[3];
471
472 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
473 return 0;
474
475 return -EINVAL;
476 };
477
478 static int mhz_setup(struct pcmcia_device *link)
479 {
480 struct net_device *dev = link->priv;
481 size_t len;
482 u8 *buf;
483 int rc;
484
485 /* Read the station address from the CIS. It is stored as the last
486 (fourth) string in the Version 1 Version/ID tuple. */
487 if ((link->prod_id[3]) &&
488 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
489 return 0;
490
491 /* Workarounds for broken cards start here. */
492 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
493 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
494 return 0;
495
496 /* Another possibility: for the EM3288, in a special tuple */
497 rc = -1;
498 len = pcmcia_get_tuple(link, 0x81, &buf);
499 if (buf && len >= 13) {
500 buf[12] = '\0';
501 if (cvt_ascii_address(dev, buf) == 0)
502 rc = 0;
503 }
504 kfree(buf);
505
506 return rc;
507 };
508
509 /*======================================================================
510
511 Configuration stuff for the Motorola Mariner
512
513 mot_config() writes directly to the Mariner configuration
514 registers because the CIS is just bogus.
515
516 ======================================================================*/
517
518 static void mot_config(struct pcmcia_device *link)
519 {
520 struct net_device *dev = link->priv;
521 struct smc_private *smc = netdev_priv(dev);
522 unsigned int ioaddr = dev->base_addr;
523 unsigned int iouart = link->resource[1]->start;
524
525 /* Set UART base address and force map with COR bit 1 */
526 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
527 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
528 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
529
530 /* Set SMC base address and force map with COR bit 1 */
531 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
532 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
533 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
534
535 /* Wait for things to settle down */
536 mdelay(100);
537 }
538
539 static int mot_setup(struct pcmcia_device *link)
540 {
541 struct net_device *dev = link->priv;
542 unsigned int ioaddr = dev->base_addr;
543 int i, wait, loop;
544 u_int addr;
545
546 /* Read Ethernet address from Serial EEPROM */
547
548 for (i = 0; i < 3; i++) {
549 SMC_SELECT_BANK(2);
550 outw(MOT_EEPROM + i, ioaddr + POINTER);
551 SMC_SELECT_BANK(1);
552 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
553
554 for (loop = wait = 0; loop < 200; loop++) {
555 udelay(10);
556 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
557 if (wait == 0) break;
558 }
559
560 if (wait)
561 return -1;
562
563 addr = inw(ioaddr + GENERAL);
564 dev->dev_addr[2*i] = addr & 0xff;
565 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
566 }
567
568 return 0;
569 }
570
571 /*====================================================================*/
572
573 static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data)
574 {
575 p_dev->resource[0]->end = 16;
576 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
577 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
578
579 return pcmcia_request_io(p_dev);
580 }
581
582 static int smc_config(struct pcmcia_device *link)
583 {
584 struct net_device *dev = link->priv;
585 int i;
586
587 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
588
589 i = pcmcia_loop_config(link, smc_configcheck, NULL);
590 if (!i)
591 dev->base_addr = link->resource[0]->start;
592
593 return i;
594 }
595
596
597 static int smc_setup(struct pcmcia_device *link)
598 {
599 struct net_device *dev = link->priv;
600
601 /* Check for a LAN function extension tuple */
602 if (!pcmcia_get_mac_from_cis(link, dev))
603 return 0;
604
605 /* Try the third string in the Version 1 Version/ID tuple. */
606 if (link->prod_id[2]) {
607 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
608 return 0;
609 }
610 return -1;
611 }
612
613 /*====================================================================*/
614
615 static int osi_config(struct pcmcia_device *link)
616 {
617 struct net_device *dev = link->priv;
618 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
619 int i, j;
620
621 link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ;
622 link->resource[0]->end = 64;
623 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
624 link->resource[1]->end = 8;
625
626 /* Enable Hard Decode, LAN, Modem */
627 link->io_lines = 16;
628 link->config_index = 0x23;
629
630 for (i = j = 0; j < 4; j++) {
631 link->resource[1]->start = com[j];
632 i = pcmcia_request_io(link);
633 if (i == 0)
634 break;
635 }
636 if (i != 0) {
637 /* Fallback: turn off hard decode */
638 link->config_index = 0x03;
639 link->resource[1]->end = 0;
640 i = pcmcia_request_io(link);
641 }
642 dev->base_addr = link->resource[0]->start + 0x10;
643 return i;
644 }
645
646 static int osi_load_firmware(struct pcmcia_device *link)
647 {
648 const struct firmware *fw;
649 int i, err;
650
651 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
652 if (err) {
653 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
654 return err;
655 }
656
657 /* Download the Seven of Diamonds firmware */
658 for (i = 0; i < fw->size; i++) {
659 outb(fw->data[i], link->resource[0]->start + 2);
660 udelay(50);
661 }
662 release_firmware(fw);
663 return err;
664 }
665
666 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
667 tuple_t *tuple,
668 void *priv)
669 {
670 struct net_device *dev = priv;
671 int i;
672
673 if (tuple->TupleDataLen < 8)
674 return -EINVAL;
675 if (tuple->TupleData[0] != 0x04)
676 return -EINVAL;
677 for (i = 0; i < 6; i++)
678 dev->dev_addr[i] = tuple->TupleData[i+2];
679 return 0;
680 };
681
682
683 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
684 {
685 struct net_device *dev = link->priv;
686 int rc;
687
688 /* Read the station address from tuple 0x90, subtuple 0x04 */
689 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
690 return -1;
691
692 if (((manfid == MANFID_OSITECH) &&
693 (cardid == PRODID_OSITECH_SEVEN)) ||
694 ((manfid == MANFID_PSION) &&
695 (cardid == PRODID_PSION_NET100))) {
696 rc = osi_load_firmware(link);
697 if (rc)
698 return rc;
699 } else if (manfid == MANFID_OSITECH) {
700 /* Make sure both functions are powered up */
701 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
702 /* Now, turn on the interrupt for both card functions */
703 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
704 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
705 inw(link->resource[0]->start + OSITECH_AUI_PWR),
706 inw(link->resource[0]->start + OSITECH_RESET_ISR));
707 }
708 return 0;
709 }
710
711 static int smc91c92_suspend(struct pcmcia_device *link)
712 {
713 struct net_device *dev = link->priv;
714
715 if (link->open)
716 netif_device_detach(dev);
717
718 return 0;
719 }
720
721 static int smc91c92_resume(struct pcmcia_device *link)
722 {
723 struct net_device *dev = link->priv;
724 struct smc_private *smc = netdev_priv(dev);
725 int i;
726
727 if ((smc->manfid == MANFID_MEGAHERTZ) &&
728 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
729 mhz_3288_power(link);
730 if (smc->manfid == MANFID_MOTOROLA)
731 mot_config(link);
732 if ((smc->manfid == MANFID_OSITECH) &&
733 (smc->cardid != PRODID_OSITECH_SEVEN)) {
734 /* Power up the card and enable interrupts */
735 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
736 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
737 }
738 if (((smc->manfid == MANFID_OSITECH) &&
739 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
740 ((smc->manfid == MANFID_PSION) &&
741 (smc->cardid == PRODID_PSION_NET100))) {
742 i = osi_load_firmware(link);
743 if (i) {
744 pr_err("smc91c92_cs: Failed to load firmware\n");
745 return i;
746 }
747 }
748 if (link->open) {
749 smc_reset(dev);
750 netif_device_attach(dev);
751 }
752
753 return 0;
754 }
755
756
757 /*======================================================================
758
759 This verifies that the chip is some SMC91cXX variant, and returns
760 the revision code if successful. Otherwise, it returns -ENODEV.
761
762 ======================================================================*/
763
764 static int check_sig(struct pcmcia_device *link)
765 {
766 struct net_device *dev = link->priv;
767 unsigned int ioaddr = dev->base_addr;
768 int width;
769 u_short s;
770
771 SMC_SELECT_BANK(1);
772 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
773 /* Try powering up the chip */
774 outw(0, ioaddr + CONTROL);
775 mdelay(55);
776 }
777
778 /* Try setting bus width */
779 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
780 s = inb(ioaddr + CONFIG);
781 if (width)
782 s |= CFG_16BIT;
783 else
784 s &= ~CFG_16BIT;
785 outb(s, ioaddr + CONFIG);
786
787 /* Check Base Address Register to make sure bus width is OK */
788 s = inw(ioaddr + BASE_ADDR);
789 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
790 ((s >> 8) != (s & 0xff))) {
791 SMC_SELECT_BANK(3);
792 s = inw(ioaddr + REVISION);
793 return s & 0xff;
794 }
795
796 if (width) {
797 pr_info("using 8-bit IO window\n");
798
799 smc91c92_suspend(link);
800 pcmcia_fixup_iowidth(link);
801 smc91c92_resume(link);
802 return check_sig(link);
803 }
804 return -ENODEV;
805 }
806
807 static int smc91c92_config(struct pcmcia_device *link)
808 {
809 struct net_device *dev = link->priv;
810 struct smc_private *smc = netdev_priv(dev);
811 char *name;
812 int i, rev, j = 0;
813 unsigned int ioaddr;
814 u_long mir;
815
816 dev_dbg(&link->dev, "smc91c92_config\n");
817
818 smc->manfid = link->manf_id;
819 smc->cardid = link->card_id;
820
821 if ((smc->manfid == MANFID_OSITECH) &&
822 (smc->cardid != PRODID_OSITECH_SEVEN)) {
823 i = osi_config(link);
824 } else if ((smc->manfid == MANFID_MOTOROLA) ||
825 ((smc->manfid == MANFID_MEGAHERTZ) &&
826 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
827 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
828 i = mhz_mfc_config(link);
829 } else {
830 i = smc_config(link);
831 }
832 if (i)
833 goto config_failed;
834
835 i = pcmcia_request_irq(link, smc_interrupt);
836 if (i)
837 goto config_failed;
838 i = pcmcia_enable_device(link);
839 if (i)
840 goto config_failed;
841
842 if (smc->manfid == MANFID_MOTOROLA)
843 mot_config(link);
844
845 dev->irq = link->irq;
846
847 if ((if_port >= 0) && (if_port <= 2))
848 dev->if_port = if_port;
849 else
850 dev_notice(&link->dev, "invalid if_port requested\n");
851
852 switch (smc->manfid) {
853 case MANFID_OSITECH:
854 case MANFID_PSION:
855 i = osi_setup(link, smc->manfid, smc->cardid); break;
856 case MANFID_SMC:
857 case MANFID_NEW_MEDIA:
858 i = smc_setup(link); break;
859 case 0x128: /* For broken Megahertz cards */
860 case MANFID_MEGAHERTZ:
861 i = mhz_setup(link); break;
862 case MANFID_MOTOROLA:
863 default: /* get the hw address from EEPROM */
864 i = mot_setup(link); break;
865 }
866
867 if (i != 0) {
868 dev_notice(&link->dev, "Unable to find hardware address.\n");
869 goto config_failed;
870 }
871
872 smc->duplex = 0;
873 smc->rx_ovrn = 0;
874
875 rev = check_sig(link);
876 name = "???";
877 if (rev > 0)
878 switch (rev >> 4) {
879 case 3: name = "92"; break;
880 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
881 case 5: name = "95"; break;
882 case 7: name = "100"; break;
883 case 8: name = "100-FD"; break;
884 case 9: name = "110"; break;
885 }
886
887 ioaddr = dev->base_addr;
888 if (rev > 0) {
889 u_long mcr;
890 SMC_SELECT_BANK(0);
891 mir = inw(ioaddr + MEMINFO) & 0xff;
892 if (mir == 0xff) mir++;
893 /* Get scale factor for memory size */
894 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
895 mir *= 128 * (1<<((mcr >> 9) & 7));
896 SMC_SELECT_BANK(1);
897 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
898 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
899 if (smc->manfid == MANFID_OSITECH)
900 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
901 if ((rev >> 4) >= 7)
902 smc->cfg |= CFG_MII_SELECT;
903 } else
904 mir = 0;
905
906 if (smc->cfg & CFG_MII_SELECT) {
907 SMC_SELECT_BANK(3);
908
909 for (i = 0; i < 32; i++) {
910 j = mdio_read(dev, i, 1);
911 if ((j != 0) && (j != 0xffff)) break;
912 }
913 smc->mii_if.phy_id = (i < 32) ? i : -1;
914
915 SMC_SELECT_BANK(0);
916 }
917
918 SET_NETDEV_DEV(dev, &link->dev);
919
920 if (register_netdev(dev) != 0) {
921 dev_err(&link->dev, "register_netdev() failed\n");
922 goto config_undo;
923 }
924
925 netdev_info(dev, "smc91c%s rev %d: io %#3lx, irq %d, hw_addr %pM\n",
926 name, (rev & 0x0f), dev->base_addr, dev->irq, dev->dev_addr);
927
928 if (rev > 0) {
929 if (mir & 0x3ff)
930 netdev_info(dev, " %lu byte", mir);
931 else
932 netdev_info(dev, " %lu kb", mir>>10);
933 pr_cont(" buffer, %s xcvr\n",
934 (smc->cfg & CFG_MII_SELECT) ? "MII" : if_names[dev->if_port]);
935 }
936
937 if (smc->cfg & CFG_MII_SELECT) {
938 if (smc->mii_if.phy_id != -1) {
939 netdev_dbg(dev, " MII transceiver at index %d, status %x\n",
940 smc->mii_if.phy_id, j);
941 } else {
942 netdev_notice(dev, " No MII transceivers found!\n");
943 }
944 }
945 return 0;
946
947 config_undo:
948 unregister_netdev(dev);
949 config_failed:
950 smc91c92_release(link);
951 free_netdev(dev);
952 return -ENODEV;
953 } /* smc91c92_config */
954
955 static void smc91c92_release(struct pcmcia_device *link)
956 {
957 dev_dbg(&link->dev, "smc91c92_release\n");
958 if (link->resource[2]->end) {
959 struct net_device *dev = link->priv;
960 struct smc_private *smc = netdev_priv(dev);
961 iounmap(smc->base);
962 }
963 pcmcia_disable_device(link);
964 }
965
966 /*======================================================================
967
968 MII interface support for SMC91cXX based cards
969 ======================================================================*/
970
971 #define MDIO_SHIFT_CLK 0x04
972 #define MDIO_DATA_OUT 0x01
973 #define MDIO_DIR_WRITE 0x08
974 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
975 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
976 #define MDIO_DATA_READ 0x02
977
978 static void mdio_sync(unsigned int addr)
979 {
980 int bits;
981 for (bits = 0; bits < 32; bits++) {
982 outb(MDIO_DATA_WRITE1, addr);
983 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
984 }
985 }
986
987 static int mdio_read(struct net_device *dev, int phy_id, int loc)
988 {
989 unsigned int addr = dev->base_addr + MGMT;
990 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
991 int i, retval = 0;
992
993 mdio_sync(addr);
994 for (i = 13; i >= 0; i--) {
995 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
996 outb(dat, addr);
997 outb(dat | MDIO_SHIFT_CLK, addr);
998 }
999 for (i = 19; i > 0; i--) {
1000 outb(0, addr);
1001 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1002 outb(MDIO_SHIFT_CLK, addr);
1003 }
1004 return (retval>>1) & 0xffff;
1005 }
1006
1007 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1008 {
1009 unsigned int addr = dev->base_addr + MGMT;
1010 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1011 int i;
1012
1013 mdio_sync(addr);
1014 for (i = 31; i >= 0; i--) {
1015 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1016 outb(dat, addr);
1017 outb(dat | MDIO_SHIFT_CLK, addr);
1018 }
1019 for (i = 1; i >= 0; i--) {
1020 outb(0, addr);
1021 outb(MDIO_SHIFT_CLK, addr);
1022 }
1023 }
1024
1025 /*======================================================================
1026
1027 The driver core code, most of which should be common with a
1028 non-PCMCIA implementation.
1029
1030 ======================================================================*/
1031
1032 #ifdef PCMCIA_DEBUG
1033 static void smc_dump(struct net_device *dev)
1034 {
1035 unsigned int ioaddr = dev->base_addr;
1036 u_short i, w, save;
1037 save = inw(ioaddr + BANK_SELECT);
1038 for (w = 0; w < 4; w++) {
1039 SMC_SELECT_BANK(w);
1040 netdev_printk(KERN_DEBUG, dev, "bank %d: ", w);
1041 for (i = 0; i < 14; i += 2)
1042 pr_cont(" %04x", inw(ioaddr + i));
1043 pr_cont("\n");
1044 }
1045 outw(save, ioaddr + BANK_SELECT);
1046 }
1047 #endif
1048
1049 static int smc_open(struct net_device *dev)
1050 {
1051 struct smc_private *smc = netdev_priv(dev);
1052 struct pcmcia_device *link = smc->p_dev;
1053
1054 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1055 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1056 #ifdef PCMCIA_DEBUG
1057 smc_dump(dev);
1058 #endif
1059
1060 /* Check that the PCMCIA card is still here. */
1061 if (!pcmcia_dev_present(link))
1062 return -ENODEV;
1063 /* Physical device present signature. */
1064 if (check_sig(link) < 0) {
1065 netdev_info(dev, "Yikes! Bad chip signature!\n");
1066 return -ENODEV;
1067 }
1068 link->open++;
1069
1070 netif_start_queue(dev);
1071 smc->saved_skb = NULL;
1072 smc->packets_waiting = 0;
1073
1074 smc_reset(dev);
1075 init_timer(&smc->media);
1076 smc->media.function = media_check;
1077 smc->media.data = (u_long) dev;
1078 smc->media.expires = jiffies + HZ;
1079 add_timer(&smc->media);
1080
1081 return 0;
1082 } /* smc_open */
1083
1084 /*====================================================================*/
1085
1086 static int smc_close(struct net_device *dev)
1087 {
1088 struct smc_private *smc = netdev_priv(dev);
1089 struct pcmcia_device *link = smc->p_dev;
1090 unsigned int ioaddr = dev->base_addr;
1091
1092 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1093 dev->name, inw(ioaddr + BANK_SELECT));
1094
1095 netif_stop_queue(dev);
1096
1097 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1098 Don't bother to check for chip present. */
1099 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1100 outw(0, ioaddr + INTERRUPT);
1101 SMC_SELECT_BANK(0);
1102 mask_bits(0xff00, ioaddr + RCR);
1103 mask_bits(0xff00, ioaddr + TCR);
1104
1105 /* Put the chip into power-down mode. */
1106 SMC_SELECT_BANK(1);
1107 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1108
1109 link->open--;
1110 del_timer_sync(&smc->media);
1111
1112 return 0;
1113 } /* smc_close */
1114
1115 /*======================================================================
1116
1117 Transfer a packet to the hardware and trigger the packet send.
1118 This may be called at either from either the Tx queue code
1119 or the interrupt handler.
1120
1121 ======================================================================*/
1122
1123 static void smc_hardware_send_packet(struct net_device * dev)
1124 {
1125 struct smc_private *smc = netdev_priv(dev);
1126 struct sk_buff *skb = smc->saved_skb;
1127 unsigned int ioaddr = dev->base_addr;
1128 u_char packet_no;
1129
1130 if (!skb) {
1131 netdev_err(dev, "In XMIT with no packet to send\n");
1132 return;
1133 }
1134
1135 /* There should be a packet slot waiting. */
1136 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1137 if (packet_no & 0x80) {
1138 /* If not, there is a hardware problem! Likely an ejected card. */
1139 netdev_warn(dev, "hardware Tx buffer allocation failed, status %#2.2x\n",
1140 packet_no);
1141 dev_kfree_skb_irq(skb);
1142 smc->saved_skb = NULL;
1143 netif_start_queue(dev);
1144 return;
1145 }
1146
1147 dev->stats.tx_bytes += skb->len;
1148 /* The card should use the just-allocated buffer. */
1149 outw(packet_no, ioaddr + PNR_ARR);
1150 /* point to the beginning of the packet */
1151 outw(PTR_AUTOINC , ioaddr + POINTER);
1152
1153 /* Send the packet length (+6 for status, length and ctl byte)
1154 and the status word (set to zeros). */
1155 {
1156 u_char *buf = skb->data;
1157 u_int length = skb->len; /* The chip will pad to ethernet min. */
1158
1159 netdev_dbg(dev, "Trying to xmit packet of length %d\n", length);
1160
1161 /* send the packet length: +6 for status word, length, and ctl */
1162 outw(0, ioaddr + DATA_1);
1163 outw(length + 6, ioaddr + DATA_1);
1164 outsw(ioaddr + DATA_1, buf, length >> 1);
1165
1166 /* The odd last byte, if there is one, goes in the control word. */
1167 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1168 }
1169
1170 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1171 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1172 (inw(ioaddr + INTERRUPT) & 0xff00),
1173 ioaddr + INTERRUPT);
1174
1175 /* The chip does the rest of the work. */
1176 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1177
1178 smc->saved_skb = NULL;
1179 dev_kfree_skb_irq(skb);
1180 dev->trans_start = jiffies;
1181 netif_start_queue(dev);
1182 }
1183
1184 /*====================================================================*/
1185
1186 static void smc_tx_timeout(struct net_device *dev)
1187 {
1188 struct smc_private *smc = netdev_priv(dev);
1189 unsigned int ioaddr = dev->base_addr;
1190
1191 netdev_notice(dev, "transmit timed out, Tx_status %2.2x status %4.4x.\n",
1192 inw(ioaddr)&0xff, inw(ioaddr + 2));
1193 dev->stats.tx_errors++;
1194 smc_reset(dev);
1195 dev->trans_start = jiffies; /* prevent tx timeout */
1196 smc->saved_skb = NULL;
1197 netif_wake_queue(dev);
1198 }
1199
1200 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1201 struct net_device *dev)
1202 {
1203 struct smc_private *smc = netdev_priv(dev);
1204 unsigned int ioaddr = dev->base_addr;
1205 u_short num_pages;
1206 short time_out, ir;
1207 unsigned long flags;
1208
1209 netif_stop_queue(dev);
1210
1211 netdev_dbg(dev, "smc_start_xmit(length = %d) called, status %04x\n",
1212 skb->len, inw(ioaddr + 2));
1213
1214 if (smc->saved_skb) {
1215 /* THIS SHOULD NEVER HAPPEN. */
1216 dev->stats.tx_aborted_errors++;
1217 netdev_printk(KERN_DEBUG, dev,
1218 "Internal error -- sent packet while busy\n");
1219 return NETDEV_TX_BUSY;
1220 }
1221 smc->saved_skb = skb;
1222
1223 num_pages = skb->len >> 8;
1224
1225 if (num_pages > 7) {
1226 netdev_err(dev, "Far too big packet error: %d pages\n", num_pages);
1227 dev_kfree_skb (skb);
1228 smc->saved_skb = NULL;
1229 dev->stats.tx_dropped++;
1230 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1231 }
1232 /* A packet is now waiting. */
1233 smc->packets_waiting++;
1234
1235 spin_lock_irqsave(&smc->lock, flags);
1236 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1237
1238 /* need MC_RESET to keep the memory consistent. errata? */
1239 if (smc->rx_ovrn) {
1240 outw(MC_RESET, ioaddr + MMU_CMD);
1241 smc->rx_ovrn = 0;
1242 }
1243
1244 /* Allocate the memory; send the packet now if we win. */
1245 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1246 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1247 ir = inw(ioaddr+INTERRUPT);
1248 if (ir & IM_ALLOC_INT) {
1249 /* Acknowledge the interrupt, send the packet. */
1250 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1251 smc_hardware_send_packet(dev); /* Send the packet now.. */
1252 spin_unlock_irqrestore(&smc->lock, flags);
1253 return NETDEV_TX_OK;
1254 }
1255 }
1256
1257 /* Otherwise defer until the Tx-space-allocated interrupt. */
1258 pr_debug("%s: memory allocation deferred.\n", dev->name);
1259 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1260 spin_unlock_irqrestore(&smc->lock, flags);
1261
1262 return NETDEV_TX_OK;
1263 }
1264
1265 /*======================================================================
1266
1267 Handle a Tx anomalous event. Entered while in Window 2.
1268
1269 ======================================================================*/
1270
1271 static void smc_tx_err(struct net_device * dev)
1272 {
1273 struct smc_private *smc = netdev_priv(dev);
1274 unsigned int ioaddr = dev->base_addr;
1275 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1276 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1277 int tx_status;
1278
1279 /* select this as the packet to read from */
1280 outw(packet_no, ioaddr + PNR_ARR);
1281
1282 /* read the first word from this packet */
1283 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1284
1285 tx_status = inw(ioaddr + DATA_1);
1286
1287 dev->stats.tx_errors++;
1288 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1289 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1290 if (tx_status & TS_16COL) {
1291 dev->stats.tx_aborted_errors++;
1292 smc->tx_err++;
1293 }
1294
1295 if (tx_status & TS_SUCCESS) {
1296 netdev_notice(dev, "Successful packet caused error interrupt?\n");
1297 }
1298 /* re-enable transmit */
1299 SMC_SELECT_BANK(0);
1300 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1301 SMC_SELECT_BANK(2);
1302
1303 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1304
1305 /* one less packet waiting for me */
1306 smc->packets_waiting--;
1307
1308 outw(saved_packet, ioaddr + PNR_ARR);
1309 }
1310
1311 /*====================================================================*/
1312
1313 static void smc_eph_irq(struct net_device *dev)
1314 {
1315 struct smc_private *smc = netdev_priv(dev);
1316 unsigned int ioaddr = dev->base_addr;
1317 u_short card_stats, ephs;
1318
1319 SMC_SELECT_BANK(0);
1320 ephs = inw(ioaddr + EPH);
1321 pr_debug("%s: Ethernet protocol handler interrupt, status"
1322 " %4.4x.\n", dev->name, ephs);
1323 /* Could be a counter roll-over warning: update stats. */
1324 card_stats = inw(ioaddr + COUNTER);
1325 /* single collisions */
1326 dev->stats.collisions += card_stats & 0xF;
1327 card_stats >>= 4;
1328 /* multiple collisions */
1329 dev->stats.collisions += card_stats & 0xF;
1330 #if 0 /* These are for when linux supports these statistics */
1331 card_stats >>= 4; /* deferred */
1332 card_stats >>= 4; /* excess deferred */
1333 #endif
1334 /* If we had a transmit error we must re-enable the transmitter. */
1335 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1336
1337 /* Clear a link error interrupt. */
1338 SMC_SELECT_BANK(1);
1339 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1340 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1341 ioaddr + CONTROL);
1342 SMC_SELECT_BANK(2);
1343 }
1344
1345 /*====================================================================*/
1346
1347 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1348 {
1349 struct net_device *dev = dev_id;
1350 struct smc_private *smc = netdev_priv(dev);
1351 unsigned int ioaddr;
1352 u_short saved_bank, saved_pointer, mask, status;
1353 unsigned int handled = 1;
1354 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1355
1356 if (!netif_device_present(dev))
1357 return IRQ_NONE;
1358
1359 ioaddr = dev->base_addr;
1360
1361 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1362 irq, ioaddr);
1363
1364 spin_lock(&smc->lock);
1365 smc->watchdog = 0;
1366 saved_bank = inw(ioaddr + BANK_SELECT);
1367 if ((saved_bank & 0xff00) != 0x3300) {
1368 /* The device does not exist -- the card could be off-line, or
1369 maybe it has been ejected. */
1370 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1371 "/ejected device.\n", dev->name, irq);
1372 handled = 0;
1373 goto irq_done;
1374 }
1375
1376 SMC_SELECT_BANK(2);
1377 saved_pointer = inw(ioaddr + POINTER);
1378 mask = inw(ioaddr + INTERRUPT) >> 8;
1379 /* clear all interrupts */
1380 outw(0, ioaddr + INTERRUPT);
1381
1382 do { /* read the status flag, and mask it */
1383 status = inw(ioaddr + INTERRUPT) & 0xff;
1384 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1385 status, mask);
1386 if ((status & mask) == 0) {
1387 if (bogus_cnt == INTR_WORK)
1388 handled = 0;
1389 break;
1390 }
1391 if (status & IM_RCV_INT) {
1392 /* Got a packet(s). */
1393 smc_rx(dev);
1394 }
1395 if (status & IM_TX_INT) {
1396 smc_tx_err(dev);
1397 outw(IM_TX_INT, ioaddr + INTERRUPT);
1398 }
1399 status &= mask;
1400 if (status & IM_TX_EMPTY_INT) {
1401 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1402 mask &= ~IM_TX_EMPTY_INT;
1403 dev->stats.tx_packets += smc->packets_waiting;
1404 smc->packets_waiting = 0;
1405 }
1406 if (status & IM_ALLOC_INT) {
1407 /* Clear this interrupt so it doesn't happen again */
1408 mask &= ~IM_ALLOC_INT;
1409
1410 smc_hardware_send_packet(dev);
1411
1412 /* enable xmit interrupts based on this */
1413 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1414
1415 /* and let the card send more packets to me */
1416 netif_wake_queue(dev);
1417 }
1418 if (status & IM_RX_OVRN_INT) {
1419 dev->stats.rx_errors++;
1420 dev->stats.rx_fifo_errors++;
1421 if (smc->duplex)
1422 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1423 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1424 }
1425 if (status & IM_EPH_INT)
1426 smc_eph_irq(dev);
1427 } while (--bogus_cnt);
1428
1429 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1430 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1431
1432 /* restore state register */
1433 outw((mask<<8), ioaddr + INTERRUPT);
1434 outw(saved_pointer, ioaddr + POINTER);
1435 SMC_SELECT_BANK(saved_bank);
1436
1437 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1438
1439 irq_done:
1440
1441 if ((smc->manfid == MANFID_OSITECH) &&
1442 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1443 /* Retrigger interrupt if needed */
1444 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1445 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1446 }
1447 if (smc->manfid == MANFID_MOTOROLA) {
1448 u_char cor;
1449 cor = readb(smc->base + MOT_UART + CISREG_COR);
1450 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1451 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1452 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1453 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1454 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1455 }
1456
1457 if ((smc->base != NULL) && /* Megahertz MFC's */
1458 (smc->manfid == MANFID_MEGAHERTZ) &&
1459 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
1460
1461 u_char tmp;
1462 tmp = readb(smc->base+MEGAHERTZ_ISR);
1463 tmp = readb(smc->base+MEGAHERTZ_ISR);
1464
1465 /* Retrigger interrupt if needed */
1466 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1467 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1468 }
1469
1470 spin_unlock(&smc->lock);
1471 return IRQ_RETVAL(handled);
1472 }
1473
1474 /*====================================================================*/
1475
1476 static void smc_rx(struct net_device *dev)
1477 {
1478 unsigned int ioaddr = dev->base_addr;
1479 int rx_status;
1480 int packet_length; /* Caution: not frame length, rather words
1481 to transfer from the chip. */
1482
1483 /* Assertion: we are in Window 2. */
1484
1485 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1486 netdev_err(dev, "smc_rx() with nothing on Rx FIFO\n");
1487 return;
1488 }
1489
1490 /* Reset the read pointer, and read the status and packet length. */
1491 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1492 rx_status = inw(ioaddr + DATA_1);
1493 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1494
1495 pr_debug("%s: Receive status %4.4x length %d.\n",
1496 dev->name, rx_status, packet_length);
1497
1498 if (!(rx_status & RS_ERRORS)) {
1499 /* do stuff to make a new packet */
1500 struct sk_buff *skb;
1501
1502 /* Note: packet_length adds 5 or 6 extra bytes here! */
1503 skb = dev_alloc_skb(packet_length+2);
1504
1505 if (skb == NULL) {
1506 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1507 dev->stats.rx_dropped++;
1508 outw(MC_RELEASE, ioaddr + MMU_CMD);
1509 return;
1510 }
1511
1512 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1513 skb_reserve(skb, 2);
1514 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1515 (packet_length+1)>>1);
1516 skb->protocol = eth_type_trans(skb, dev);
1517
1518 netif_rx(skb);
1519 dev->last_rx = jiffies;
1520 dev->stats.rx_packets++;
1521 dev->stats.rx_bytes += packet_length;
1522 if (rx_status & RS_MULTICAST)
1523 dev->stats.multicast++;
1524 } else {
1525 /* error ... */
1526 dev->stats.rx_errors++;
1527
1528 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1529 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1530 dev->stats.rx_length_errors++;
1531 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1532 }
1533 /* Let the MMU free the memory of this packet. */
1534 outw(MC_RELEASE, ioaddr + MMU_CMD);
1535 }
1536
1537 /*======================================================================
1538
1539 Set the receive mode.
1540
1541 This routine is used by both the protocol level to notify us of
1542 promiscuous/multicast mode changes, and by the open/reset code to
1543 initialize the Rx registers. We always set the multicast list and
1544 leave the receiver running.
1545
1546 ======================================================================*/
1547
1548 static void set_rx_mode(struct net_device *dev)
1549 {
1550 unsigned int ioaddr = dev->base_addr;
1551 struct smc_private *smc = netdev_priv(dev);
1552 unsigned char multicast_table[8];
1553 unsigned long flags;
1554 u_short rx_cfg_setting;
1555 int i;
1556
1557 memset(multicast_table, 0, sizeof(multicast_table));
1558
1559 if (dev->flags & IFF_PROMISC) {
1560 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1561 } else if (dev->flags & IFF_ALLMULTI)
1562 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1563 else {
1564 if (!netdev_mc_empty(dev)) {
1565 struct netdev_hw_addr *ha;
1566
1567 netdev_for_each_mc_addr(ha, dev) {
1568 u_int position = ether_crc(6, ha->addr);
1569 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1570 }
1571 }
1572 rx_cfg_setting = RxStripCRC | RxEnable;
1573 }
1574
1575 /* Load MC table and Rx setting into the chip without interrupts. */
1576 spin_lock_irqsave(&smc->lock, flags);
1577 SMC_SELECT_BANK(3);
1578 for (i = 0; i < 8; i++)
1579 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1580 SMC_SELECT_BANK(0);
1581 outw(rx_cfg_setting, ioaddr + RCR);
1582 SMC_SELECT_BANK(2);
1583 spin_unlock_irqrestore(&smc->lock, flags);
1584 }
1585
1586 /*======================================================================
1587
1588 Senses when a card's config changes. Here, it's coax or TP.
1589
1590 ======================================================================*/
1591
1592 static int s9k_config(struct net_device *dev, struct ifmap *map)
1593 {
1594 struct smc_private *smc = netdev_priv(dev);
1595 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1596 if (smc->cfg & CFG_MII_SELECT)
1597 return -EOPNOTSUPP;
1598 else if (map->port > 2)
1599 return -EINVAL;
1600 dev->if_port = map->port;
1601 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
1602 smc_reset(dev);
1603 }
1604 return 0;
1605 }
1606
1607 /*======================================================================
1608
1609 Reset the chip, reloading every register that might be corrupted.
1610
1611 ======================================================================*/
1612
1613 /*
1614 Set transceiver type, perhaps to something other than what the user
1615 specified in dev->if_port.
1616 */
1617 static void smc_set_xcvr(struct net_device *dev, int if_port)
1618 {
1619 struct smc_private *smc = netdev_priv(dev);
1620 unsigned int ioaddr = dev->base_addr;
1621 u_short saved_bank;
1622
1623 saved_bank = inw(ioaddr + BANK_SELECT);
1624 SMC_SELECT_BANK(1);
1625 if (if_port == 2) {
1626 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1627 if ((smc->manfid == MANFID_OSITECH) &&
1628 (smc->cardid != PRODID_OSITECH_SEVEN))
1629 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1630 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1631 } else {
1632 outw(smc->cfg, ioaddr + CONFIG);
1633 if ((smc->manfid == MANFID_OSITECH) &&
1634 (smc->cardid != PRODID_OSITECH_SEVEN))
1635 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1636 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1637 }
1638 SMC_SELECT_BANK(saved_bank);
1639 }
1640
1641 static void smc_reset(struct net_device *dev)
1642 {
1643 unsigned int ioaddr = dev->base_addr;
1644 struct smc_private *smc = netdev_priv(dev);
1645 int i;
1646
1647 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1648
1649 /* The first interaction must be a write to bring the chip out
1650 of sleep mode. */
1651 SMC_SELECT_BANK(0);
1652 /* Reset the chip. */
1653 outw(RCR_SOFTRESET, ioaddr + RCR);
1654 udelay(10);
1655
1656 /* Clear the transmit and receive configuration registers. */
1657 outw(RCR_CLEAR, ioaddr + RCR);
1658 outw(TCR_CLEAR, ioaddr + TCR);
1659
1660 /* Set the Window 1 control, configuration and station addr registers.
1661 No point in writing the I/O base register ;-> */
1662 SMC_SELECT_BANK(1);
1663 /* Automatically release successfully transmitted packets,
1664 Accept link errors, counter and Tx error interrupts. */
1665 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1666 ioaddr + CONTROL);
1667 smc_set_xcvr(dev, dev->if_port);
1668 if ((smc->manfid == MANFID_OSITECH) &&
1669 (smc->cardid != PRODID_OSITECH_SEVEN))
1670 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1671 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1672 ioaddr - 0x10 + OSITECH_AUI_PWR);
1673
1674 /* Fill in the physical address. The databook is wrong about the order! */
1675 for (i = 0; i < 6; i += 2)
1676 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1677 ioaddr + ADDR0 + i);
1678
1679 /* Reset the MMU */
1680 SMC_SELECT_BANK(2);
1681 outw(MC_RESET, ioaddr + MMU_CMD);
1682 outw(0, ioaddr + INTERRUPT);
1683
1684 /* Re-enable the chip. */
1685 SMC_SELECT_BANK(0);
1686 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1687 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1688 set_rx_mode(dev);
1689
1690 if (smc->cfg & CFG_MII_SELECT) {
1691 SMC_SELECT_BANK(3);
1692
1693 /* Reset MII */
1694 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1695
1696 /* Advertise 100F, 100H, 10F, 10H */
1697 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1698
1699 /* Restart MII autonegotiation */
1700 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1701 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1702 }
1703
1704 /* Enable interrupts. */
1705 SMC_SELECT_BANK(2);
1706 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1707 ioaddr + INTERRUPT);
1708 }
1709
1710 /*======================================================================
1711
1712 Media selection timer routine
1713
1714 ======================================================================*/
1715
1716 static void media_check(u_long arg)
1717 {
1718 struct net_device *dev = (struct net_device *) arg;
1719 struct smc_private *smc = netdev_priv(dev);
1720 unsigned int ioaddr = dev->base_addr;
1721 u_short i, media, saved_bank;
1722 u_short link;
1723 unsigned long flags;
1724
1725 spin_lock_irqsave(&smc->lock, flags);
1726
1727 saved_bank = inw(ioaddr + BANK_SELECT);
1728
1729 if (!netif_device_present(dev))
1730 goto reschedule;
1731
1732 SMC_SELECT_BANK(2);
1733
1734 /* need MC_RESET to keep the memory consistent. errata? */
1735 if (smc->rx_ovrn) {
1736 outw(MC_RESET, ioaddr + MMU_CMD);
1737 smc->rx_ovrn = 0;
1738 }
1739 i = inw(ioaddr + INTERRUPT);
1740 SMC_SELECT_BANK(0);
1741 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1742 SMC_SELECT_BANK(1);
1743 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1744
1745 SMC_SELECT_BANK(saved_bank);
1746 spin_unlock_irqrestore(&smc->lock, flags);
1747
1748 /* Check for pending interrupt with watchdog flag set: with
1749 this, we can limp along even if the interrupt is blocked */
1750 if (smc->watchdog++ && ((i>>8) & i)) {
1751 if (!smc->fast_poll)
1752 netdev_info(dev, "interrupt(s) dropped!\n");
1753 local_irq_save(flags);
1754 smc_interrupt(dev->irq, dev);
1755 local_irq_restore(flags);
1756 smc->fast_poll = HZ;
1757 }
1758 if (smc->fast_poll) {
1759 smc->fast_poll--;
1760 smc->media.expires = jiffies + HZ/100;
1761 add_timer(&smc->media);
1762 return;
1763 }
1764
1765 spin_lock_irqsave(&smc->lock, flags);
1766
1767 saved_bank = inw(ioaddr + BANK_SELECT);
1768
1769 if (smc->cfg & CFG_MII_SELECT) {
1770 if (smc->mii_if.phy_id < 0)
1771 goto reschedule;
1772
1773 SMC_SELECT_BANK(3);
1774 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1775 if (!link || (link == 0xffff)) {
1776 netdev_info(dev, "MII is missing!\n");
1777 smc->mii_if.phy_id = -1;
1778 goto reschedule;
1779 }
1780
1781 link &= 0x0004;
1782 if (link != smc->link_status) {
1783 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1784 netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
1785 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1786 ? TCR_FDUPLX : 0);
1787 if (link) {
1788 netdev_info(dev, "autonegotiation complete: "
1789 "%dbaseT-%cD selected\n",
1790 (p & 0x0180) ? 100 : 10, smc->duplex ? 'F' : 'H');
1791 }
1792 SMC_SELECT_BANK(0);
1793 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1794 smc->link_status = link;
1795 }
1796 goto reschedule;
1797 }
1798
1799 /* Ignore collisions unless we've had no rx's recently */
1800 if (time_after(jiffies, dev->last_rx + HZ)) {
1801 if (smc->tx_err || (smc->media_status & EPH_16COL))
1802 media |= EPH_16COL;
1803 }
1804 smc->tx_err = 0;
1805
1806 if (media != smc->media_status) {
1807 if ((media & smc->media_status & 1) &&
1808 ((smc->media_status ^ media) & EPH_LINK_OK))
1809 netdev_info(dev, "%s link beat\n",
1810 smc->media_status & EPH_LINK_OK ? "lost" : "found");
1811 else if ((media & smc->media_status & 2) &&
1812 ((smc->media_status ^ media) & EPH_16COL))
1813 netdev_info(dev, "coax cable %s\n",
1814 media & EPH_16COL ? "problem" : "ok");
1815 if (dev->if_port == 0) {
1816 if (media & 1) {
1817 if (media & EPH_LINK_OK)
1818 netdev_info(dev, "flipped to 10baseT\n");
1819 else
1820 smc_set_xcvr(dev, 2);
1821 } else {
1822 if (media & EPH_16COL)
1823 smc_set_xcvr(dev, 1);
1824 else
1825 netdev_info(dev, "flipped to 10base2\n");
1826 }
1827 }
1828 smc->media_status = media;
1829 }
1830
1831 reschedule:
1832 smc->media.expires = jiffies + HZ;
1833 add_timer(&smc->media);
1834 SMC_SELECT_BANK(saved_bank);
1835 spin_unlock_irqrestore(&smc->lock, flags);
1836 }
1837
1838 static int smc_link_ok(struct net_device *dev)
1839 {
1840 unsigned int ioaddr = dev->base_addr;
1841 struct smc_private *smc = netdev_priv(dev);
1842
1843 if (smc->cfg & CFG_MII_SELECT) {
1844 return mii_link_ok(&smc->mii_if);
1845 } else {
1846 SMC_SELECT_BANK(0);
1847 return inw(ioaddr + EPH) & EPH_LINK_OK;
1848 }
1849 }
1850
1851 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1852 {
1853 u16 tmp;
1854 unsigned int ioaddr = dev->base_addr;
1855
1856 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1857 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1858
1859 SMC_SELECT_BANK(1);
1860 tmp = inw(ioaddr + CONFIG);
1861 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1862 ecmd->transceiver = XCVR_INTERNAL;
1863 ethtool_cmd_speed_set(ecmd, SPEED_10);
1864 ecmd->phy_address = ioaddr + MGMT;
1865
1866 SMC_SELECT_BANK(0);
1867 tmp = inw(ioaddr + TCR);
1868 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1869
1870 return 0;
1871 }
1872
1873 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1874 {
1875 u16 tmp;
1876 unsigned int ioaddr = dev->base_addr;
1877
1878 if (ethtool_cmd_speed(ecmd) != SPEED_10)
1879 return -EINVAL;
1880 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1881 return -EINVAL;
1882 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1883 return -EINVAL;
1884 if (ecmd->transceiver != XCVR_INTERNAL)
1885 return -EINVAL;
1886
1887 if (ecmd->port == PORT_AUI)
1888 smc_set_xcvr(dev, 1);
1889 else
1890 smc_set_xcvr(dev, 0);
1891
1892 SMC_SELECT_BANK(0);
1893 tmp = inw(ioaddr + TCR);
1894 if (ecmd->duplex == DUPLEX_FULL)
1895 tmp |= TCR_FDUPLX;
1896 else
1897 tmp &= ~TCR_FDUPLX;
1898 outw(tmp, ioaddr + TCR);
1899
1900 return 0;
1901 }
1902
1903 static int check_if_running(struct net_device *dev)
1904 {
1905 if (!netif_running(dev))
1906 return -EINVAL;
1907 return 0;
1908 }
1909
1910 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1911 {
1912 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
1913 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
1914 }
1915
1916 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1917 {
1918 struct smc_private *smc = netdev_priv(dev);
1919 unsigned int ioaddr = dev->base_addr;
1920 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1921 int ret;
1922 unsigned long flags;
1923
1924 spin_lock_irqsave(&smc->lock, flags);
1925 SMC_SELECT_BANK(3);
1926 if (smc->cfg & CFG_MII_SELECT)
1927 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1928 else
1929 ret = smc_netdev_get_ecmd(dev, ecmd);
1930 SMC_SELECT_BANK(saved_bank);
1931 spin_unlock_irqrestore(&smc->lock, flags);
1932 return ret;
1933 }
1934
1935 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1936 {
1937 struct smc_private *smc = netdev_priv(dev);
1938 unsigned int ioaddr = dev->base_addr;
1939 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1940 int ret;
1941 unsigned long flags;
1942
1943 spin_lock_irqsave(&smc->lock, flags);
1944 SMC_SELECT_BANK(3);
1945 if (smc->cfg & CFG_MII_SELECT)
1946 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
1947 else
1948 ret = smc_netdev_set_ecmd(dev, ecmd);
1949 SMC_SELECT_BANK(saved_bank);
1950 spin_unlock_irqrestore(&smc->lock, flags);
1951 return ret;
1952 }
1953
1954 static u32 smc_get_link(struct net_device *dev)
1955 {
1956 struct smc_private *smc = netdev_priv(dev);
1957 unsigned int ioaddr = dev->base_addr;
1958 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1959 u32 ret;
1960 unsigned long flags;
1961
1962 spin_lock_irqsave(&smc->lock, flags);
1963 SMC_SELECT_BANK(3);
1964 ret = smc_link_ok(dev);
1965 SMC_SELECT_BANK(saved_bank);
1966 spin_unlock_irqrestore(&smc->lock, flags);
1967 return ret;
1968 }
1969
1970 static int smc_nway_reset(struct net_device *dev)
1971 {
1972 struct smc_private *smc = netdev_priv(dev);
1973 if (smc->cfg & CFG_MII_SELECT) {
1974 unsigned int ioaddr = dev->base_addr;
1975 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1976 int res;
1977
1978 SMC_SELECT_BANK(3);
1979 res = mii_nway_restart(&smc->mii_if);
1980 SMC_SELECT_BANK(saved_bank);
1981
1982 return res;
1983 } else
1984 return -EOPNOTSUPP;
1985 }
1986
1987 static const struct ethtool_ops ethtool_ops = {
1988 .begin = check_if_running,
1989 .get_drvinfo = smc_get_drvinfo,
1990 .get_settings = smc_get_settings,
1991 .set_settings = smc_set_settings,
1992 .get_link = smc_get_link,
1993 .nway_reset = smc_nway_reset,
1994 };
1995
1996 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
1997 {
1998 struct smc_private *smc = netdev_priv(dev);
1999 struct mii_ioctl_data *mii = if_mii(rq);
2000 int rc = 0;
2001 u16 saved_bank;
2002 unsigned int ioaddr = dev->base_addr;
2003 unsigned long flags;
2004
2005 if (!netif_running(dev))
2006 return -EINVAL;
2007
2008 spin_lock_irqsave(&smc->lock, flags);
2009 saved_bank = inw(ioaddr + BANK_SELECT);
2010 SMC_SELECT_BANK(3);
2011 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2012 SMC_SELECT_BANK(saved_bank);
2013 spin_unlock_irqrestore(&smc->lock, flags);
2014 return rc;
2015 }
2016
2017 static const struct pcmcia_device_id smc91c92_ids[] = {
2018 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2019 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2020 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2021 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2022 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2023 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2024 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2025 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2026 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2027 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2028 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2029 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2030 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2031 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2032 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2033 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2034 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2035 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2036 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2037 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2038 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2039 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2040 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2041 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2042 /* These conflict with other cards! */
2043 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2044 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2045 PCMCIA_DEVICE_NULL,
2046 };
2047 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2048
2049 static struct pcmcia_driver smc91c92_cs_driver = {
2050 .owner = THIS_MODULE,
2051 .name = "smc91c92_cs",
2052 .probe = smc91c92_probe,
2053 .remove = smc91c92_detach,
2054 .id_table = smc91c92_ids,
2055 .suspend = smc91c92_suspend,
2056 .resume = smc91c92_resume,
2057 };
2058
2059 static int __init init_smc91c92_cs(void)
2060 {
2061 return pcmcia_register_driver(&smc91c92_cs_driver);
2062 }
2063
2064 static void __exit exit_smc91c92_cs(void)
2065 {
2066 pcmcia_unregister_driver(&smc91c92_cs_driver);
2067 }
2068
2069 module_init(init_smc91c92_cs);
2070 module_exit(exit_smc91c92_cs);