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Merge branch 'docs-next' of git://git.lwn.net/linux-2.6
[mirror_ubuntu-hirsute-kernel.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/cs_types.h>
48 #include <pcmcia/cs.h>
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_multicast_list = 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 /*======================================================================
305
306 smc91c92_attach() creates an "instance" of the driver, allocating
307 local data structures for one device. The device is registered
308 with Card Services.
309
310 ======================================================================*/
311
312 static int smc91c92_probe(struct pcmcia_device *link)
313 {
314 struct smc_private *smc;
315 struct net_device *dev;
316
317 dev_dbg(&link->dev, "smc91c92_attach()\n");
318
319 /* Create new ethernet device */
320 dev = alloc_etherdev(sizeof(struct smc_private));
321 if (!dev)
322 return -ENOMEM;
323 smc = netdev_priv(dev);
324 smc->p_dev = link;
325
326 spin_lock_init(&smc->lock);
327 link->io.NumPorts1 = 16;
328 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
329 link->io.IOAddrLines = 4;
330 link->conf.Attributes = CONF_ENABLE_IRQ;
331 link->conf.IntType = INT_MEMORY_AND_IO;
332
333 /* The SMC91c92-specific entries in the device structure. */
334 dev->netdev_ops = &smc_netdev_ops;
335 SET_ETHTOOL_OPS(dev, &ethtool_ops);
336 dev->watchdog_timeo = TX_TIMEOUT;
337
338 smc->mii_if.dev = dev;
339 smc->mii_if.mdio_read = mdio_read;
340 smc->mii_if.mdio_write = mdio_write;
341 smc->mii_if.phy_id_mask = 0x1f;
342 smc->mii_if.reg_num_mask = 0x1f;
343
344 return smc91c92_config(link);
345 } /* smc91c92_attach */
346
347 /*======================================================================
348
349 This deletes a driver "instance". The device is de-registered
350 with Card Services. If it has been released, all local data
351 structures are freed. Otherwise, the structures will be freed
352 when the device is released.
353
354 ======================================================================*/
355
356 static void smc91c92_detach(struct pcmcia_device *link)
357 {
358 struct net_device *dev = link->priv;
359
360 dev_dbg(&link->dev, "smc91c92_detach\n");
361
362 unregister_netdev(dev);
363
364 smc91c92_release(link);
365
366 free_netdev(dev);
367 } /* smc91c92_detach */
368
369 /*====================================================================*/
370
371 static int cvt_ascii_address(struct net_device *dev, char *s)
372 {
373 int i, j, da, c;
374
375 if (strlen(s) != 12)
376 return -1;
377 for (i = 0; i < 6; i++) {
378 da = 0;
379 for (j = 0; j < 2; j++) {
380 c = *s++;
381 da <<= 4;
382 da += ((c >= '0') && (c <= '9')) ?
383 (c - '0') : ((c & 0x0f) + 9);
384 }
385 dev->dev_addr[i] = da;
386 }
387 return 0;
388 }
389
390 /*====================================================================
391
392 Configuration stuff for Megahertz cards
393
394 mhz_3288_power() is used to power up a 3288's ethernet chip.
395 mhz_mfc_config() handles socket setup for multifunction (1144
396 and 3288) cards. mhz_setup() gets a card's hardware ethernet
397 address.
398
399 ======================================================================*/
400
401 static int mhz_3288_power(struct pcmcia_device *link)
402 {
403 struct net_device *dev = link->priv;
404 struct smc_private *smc = netdev_priv(dev);
405 u_char tmp;
406
407 /* Read the ISR twice... */
408 readb(smc->base+MEGAHERTZ_ISR);
409 udelay(5);
410 readb(smc->base+MEGAHERTZ_ISR);
411
412 /* Pause 200ms... */
413 mdelay(200);
414
415 /* Now read and write the COR... */
416 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
417 udelay(5);
418 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
419
420 return 0;
421 }
422
423 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
424 cistpl_cftable_entry_t *cf,
425 cistpl_cftable_entry_t *dflt,
426 unsigned int vcc,
427 void *priv_data)
428 {
429 int k;
430 p_dev->io.BasePort2 = cf->io.win[0].base;
431 for (k = 0; k < 0x400; k += 0x10) {
432 if (k & 0x80)
433 continue;
434 p_dev->io.BasePort1 = k ^ 0x300;
435 if (!pcmcia_request_io(p_dev, &p_dev->io))
436 return 0;
437 }
438 return -ENODEV;
439 }
440
441 static int mhz_mfc_config(struct pcmcia_device *link)
442 {
443 struct net_device *dev = link->priv;
444 struct smc_private *smc = netdev_priv(dev);
445 win_req_t req;
446 memreq_t mem;
447 int i;
448
449 link->conf.Attributes |= CONF_ENABLE_SPKR;
450 link->conf.Status = CCSR_AUDIO_ENA;
451 link->io.IOAddrLines = 16;
452 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
453 link->io.NumPorts2 = 8;
454
455 /* The Megahertz combo cards have modem-like CIS entries, so
456 we have to explicitly try a bunch of port combinations. */
457 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
458 return -ENODEV;
459
460 dev->base_addr = link->io.BasePort1;
461
462 /* Allocate a memory window, for accessing the ISR */
463 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
464 req.Base = req.Size = 0;
465 req.AccessSpeed = 0;
466 i = pcmcia_request_window(link, &req, &link->win);
467 if (i != 0)
468 return -ENODEV;
469
470 smc->base = ioremap(req.Base, req.Size);
471 mem.CardOffset = mem.Page = 0;
472 if (smc->manfid == MANFID_MOTOROLA)
473 mem.CardOffset = link->conf.ConfigBase;
474 i = pcmcia_map_mem_page(link, link->win, &mem);
475
476 if ((i == 0) &&
477 (smc->manfid == MANFID_MEGAHERTZ) &&
478 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
479 mhz_3288_power(link);
480
481 return 0;
482 }
483
484 static int pcmcia_get_versmac(struct pcmcia_device *p_dev,
485 tuple_t *tuple,
486 void *priv)
487 {
488 struct net_device *dev = priv;
489 cisparse_t parse;
490 u8 *buf;
491
492 if (pcmcia_parse_tuple(tuple, &parse))
493 return -EINVAL;
494
495 buf = parse.version_1.str + parse.version_1.ofs[3];
496
497 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0))
498 return 0;
499
500 return -EINVAL;
501 };
502
503 static int mhz_setup(struct pcmcia_device *link)
504 {
505 struct net_device *dev = link->priv;
506 size_t len;
507 u8 *buf;
508 int rc;
509
510 /* Read the station address from the CIS. It is stored as the last
511 (fourth) string in the Version 1 Version/ID tuple. */
512 if ((link->prod_id[3]) &&
513 (cvt_ascii_address(dev, link->prod_id[3]) == 0))
514 return 0;
515
516 /* Workarounds for broken cards start here. */
517 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
518 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev))
519 return 0;
520
521 /* Another possibility: for the EM3288, in a special tuple */
522 rc = -1;
523 len = pcmcia_get_tuple(link, 0x81, &buf);
524 if (buf && len >= 13) {
525 buf[12] = '\0';
526 if (cvt_ascii_address(dev, buf) == 0)
527 rc = 0;
528 }
529 kfree(buf);
530
531 return rc;
532 };
533
534 /*======================================================================
535
536 Configuration stuff for the Motorola Mariner
537
538 mot_config() writes directly to the Mariner configuration
539 registers because the CIS is just bogus.
540
541 ======================================================================*/
542
543 static void mot_config(struct pcmcia_device *link)
544 {
545 struct net_device *dev = link->priv;
546 struct smc_private *smc = netdev_priv(dev);
547 unsigned int ioaddr = dev->base_addr;
548 unsigned int iouart = link->io.BasePort2;
549
550 /* Set UART base address and force map with COR bit 1 */
551 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
552 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
553 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
554
555 /* Set SMC base address and force map with COR bit 1 */
556 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
557 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
558 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
559
560 /* Wait for things to settle down */
561 mdelay(100);
562 }
563
564 static int mot_setup(struct pcmcia_device *link)
565 {
566 struct net_device *dev = link->priv;
567 unsigned int ioaddr = dev->base_addr;
568 int i, wait, loop;
569 u_int addr;
570
571 /* Read Ethernet address from Serial EEPROM */
572
573 for (i = 0; i < 3; i++) {
574 SMC_SELECT_BANK(2);
575 outw(MOT_EEPROM + i, ioaddr + POINTER);
576 SMC_SELECT_BANK(1);
577 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
578
579 for (loop = wait = 0; loop < 200; loop++) {
580 udelay(10);
581 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
582 if (wait == 0) break;
583 }
584
585 if (wait)
586 return -1;
587
588 addr = inw(ioaddr + GENERAL);
589 dev->dev_addr[2*i] = addr & 0xff;
590 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
591 }
592
593 return 0;
594 }
595
596 /*====================================================================*/
597
598 static int smc_configcheck(struct pcmcia_device *p_dev,
599 cistpl_cftable_entry_t *cf,
600 cistpl_cftable_entry_t *dflt,
601 unsigned int vcc,
602 void *priv_data)
603 {
604 p_dev->io.BasePort1 = cf->io.win[0].base;
605 p_dev->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
606 return pcmcia_request_io(p_dev, &p_dev->io);
607 }
608
609 static int smc_config(struct pcmcia_device *link)
610 {
611 struct net_device *dev = link->priv;
612 int i;
613
614 link->io.NumPorts1 = 16;
615 i = pcmcia_loop_config(link, smc_configcheck, NULL);
616 if (!i)
617 dev->base_addr = link->io.BasePort1;
618
619 return i;
620 }
621
622
623 static int smc_setup(struct pcmcia_device *link)
624 {
625 struct net_device *dev = link->priv;
626
627 /* Check for a LAN function extension tuple */
628 if (!pcmcia_get_mac_from_cis(link, dev))
629 return 0;
630
631 /* Try the third string in the Version 1 Version/ID tuple. */
632 if (link->prod_id[2]) {
633 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
634 return 0;
635 }
636 return -1;
637 }
638
639 /*====================================================================*/
640
641 static int osi_config(struct pcmcia_device *link)
642 {
643 struct net_device *dev = link->priv;
644 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
645 int i, j;
646
647 link->conf.Attributes |= CONF_ENABLE_SPKR;
648 link->conf.Status = CCSR_AUDIO_ENA;
649 link->io.NumPorts1 = 64;
650 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
651 link->io.NumPorts2 = 8;
652 link->io.IOAddrLines = 16;
653
654 /* Enable Hard Decode, LAN, Modem */
655 link->conf.ConfigIndex = 0x23;
656
657 for (i = j = 0; j < 4; j++) {
658 link->io.BasePort2 = com[j];
659 i = pcmcia_request_io(link, &link->io);
660 if (i == 0)
661 break;
662 }
663 if (i != 0) {
664 /* Fallback: turn off hard decode */
665 link->conf.ConfigIndex = 0x03;
666 link->io.NumPorts2 = 0;
667 i = pcmcia_request_io(link, &link->io);
668 }
669 dev->base_addr = link->io.BasePort1 + 0x10;
670 return i;
671 }
672
673 static int osi_load_firmware(struct pcmcia_device *link)
674 {
675 const struct firmware *fw;
676 int i, err;
677
678 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
679 if (err) {
680 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
681 return err;
682 }
683
684 /* Download the Seven of Diamonds firmware */
685 for (i = 0; i < fw->size; i++) {
686 outb(fw->data[i], link->io.BasePort1 + 2);
687 udelay(50);
688 }
689 release_firmware(fw);
690 return err;
691 }
692
693 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
694 tuple_t *tuple,
695 void *priv)
696 {
697 struct net_device *dev = priv;
698 int i;
699
700 if (tuple->TupleDataLen < 8)
701 return -EINVAL;
702 if (tuple->TupleData[0] != 0x04)
703 return -EINVAL;
704 for (i = 0; i < 6; i++)
705 dev->dev_addr[i] = tuple->TupleData[i+2];
706 return 0;
707 };
708
709
710 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
711 {
712 struct net_device *dev = link->priv;
713 int rc;
714
715 /* Read the station address from tuple 0x90, subtuple 0x04 */
716 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
717 return -1;
718
719 if (((manfid == MANFID_OSITECH) &&
720 (cardid == PRODID_OSITECH_SEVEN)) ||
721 ((manfid == MANFID_PSION) &&
722 (cardid == PRODID_PSION_NET100))) {
723 rc = osi_load_firmware(link);
724 if (rc)
725 return rc;
726 } else if (manfid == MANFID_OSITECH) {
727 /* Make sure both functions are powered up */
728 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
729 /* Now, turn on the interrupt for both card functions */
730 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
731 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
732 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
733 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
734 }
735 return 0;
736 }
737
738 static int smc91c92_suspend(struct pcmcia_device *link)
739 {
740 struct net_device *dev = link->priv;
741
742 if (link->open)
743 netif_device_detach(dev);
744
745 return 0;
746 }
747
748 static int smc91c92_resume(struct pcmcia_device *link)
749 {
750 struct net_device *dev = link->priv;
751 struct smc_private *smc = netdev_priv(dev);
752 int i;
753
754 if ((smc->manfid == MANFID_MEGAHERTZ) &&
755 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
756 mhz_3288_power(link);
757 if (smc->manfid == MANFID_MOTOROLA)
758 mot_config(link);
759 if ((smc->manfid == MANFID_OSITECH) &&
760 (smc->cardid != PRODID_OSITECH_SEVEN)) {
761 /* Power up the card and enable interrupts */
762 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
763 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
764 }
765 if (((smc->manfid == MANFID_OSITECH) &&
766 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
767 ((smc->manfid == MANFID_PSION) &&
768 (smc->cardid == PRODID_PSION_NET100))) {
769 i = osi_load_firmware(link);
770 if (i) {
771 pr_err("smc91c92_cs: Failed to load firmware\n");
772 return i;
773 }
774 }
775 if (link->open) {
776 smc_reset(dev);
777 netif_device_attach(dev);
778 }
779
780 return 0;
781 }
782
783
784 /*======================================================================
785
786 This verifies that the chip is some SMC91cXX variant, and returns
787 the revision code if successful. Otherwise, it returns -ENODEV.
788
789 ======================================================================*/
790
791 static int check_sig(struct pcmcia_device *link)
792 {
793 struct net_device *dev = link->priv;
794 unsigned int ioaddr = dev->base_addr;
795 int width;
796 u_short s;
797
798 SMC_SELECT_BANK(1);
799 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
800 /* Try powering up the chip */
801 outw(0, ioaddr + CONTROL);
802 mdelay(55);
803 }
804
805 /* Try setting bus width */
806 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
807 s = inb(ioaddr + CONFIG);
808 if (width)
809 s |= CFG_16BIT;
810 else
811 s &= ~CFG_16BIT;
812 outb(s, ioaddr + CONFIG);
813
814 /* Check Base Address Register to make sure bus width is OK */
815 s = inw(ioaddr + BASE_ADDR);
816 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
817 ((s >> 8) != (s & 0xff))) {
818 SMC_SELECT_BANK(3);
819 s = inw(ioaddr + REVISION);
820 return (s & 0xff);
821 }
822
823 if (width) {
824 modconf_t mod = {
825 .Attributes = CONF_IO_CHANGE_WIDTH,
826 };
827 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
828
829 smc91c92_suspend(link);
830 pcmcia_modify_configuration(link, &mod);
831 smc91c92_resume(link);
832 return check_sig(link);
833 }
834 return -ENODEV;
835 }
836
837 /*======================================================================
838
839 smc91c92_config() is scheduled to run after a CARD_INSERTION event
840 is received, to configure the PCMCIA socket, and to make the
841 ethernet device available to the system.
842
843 ======================================================================*/
844
845 static int smc91c92_config(struct pcmcia_device *link)
846 {
847 struct net_device *dev = link->priv;
848 struct smc_private *smc = netdev_priv(dev);
849 char *name;
850 int i, j, rev;
851 unsigned int ioaddr;
852 u_long mir;
853
854 dev_dbg(&link->dev, "smc91c92_config\n");
855
856 smc->manfid = link->manf_id;
857 smc->cardid = link->card_id;
858
859 if ((smc->manfid == MANFID_OSITECH) &&
860 (smc->cardid != PRODID_OSITECH_SEVEN)) {
861 i = osi_config(link);
862 } else if ((smc->manfid == MANFID_MOTOROLA) ||
863 ((smc->manfid == MANFID_MEGAHERTZ) &&
864 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
865 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
866 i = mhz_mfc_config(link);
867 } else {
868 i = smc_config(link);
869 }
870 if (i)
871 goto config_failed;
872
873 i = pcmcia_request_irq(link, smc_interrupt);
874 if (i)
875 goto config_failed;
876 i = pcmcia_request_configuration(link, &link->conf);
877 if (i)
878 goto config_failed;
879
880 if (smc->manfid == MANFID_MOTOROLA)
881 mot_config(link);
882
883 dev->irq = link->irq;
884
885 if ((if_port >= 0) && (if_port <= 2))
886 dev->if_port = if_port;
887 else
888 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
889
890 switch (smc->manfid) {
891 case MANFID_OSITECH:
892 case MANFID_PSION:
893 i = osi_setup(link, smc->manfid, smc->cardid); break;
894 case MANFID_SMC:
895 case MANFID_NEW_MEDIA:
896 i = smc_setup(link); break;
897 case 0x128: /* For broken Megahertz cards */
898 case MANFID_MEGAHERTZ:
899 i = mhz_setup(link); break;
900 case MANFID_MOTOROLA:
901 default: /* get the hw address from EEPROM */
902 i = mot_setup(link); break;
903 }
904
905 if (i != 0) {
906 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
907 goto config_failed;
908 }
909
910 smc->duplex = 0;
911 smc->rx_ovrn = 0;
912
913 rev = check_sig(link);
914 name = "???";
915 if (rev > 0)
916 switch (rev >> 4) {
917 case 3: name = "92"; break;
918 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
919 case 5: name = "95"; break;
920 case 7: name = "100"; break;
921 case 8: name = "100-FD"; break;
922 case 9: name = "110"; break;
923 }
924
925 ioaddr = dev->base_addr;
926 if (rev > 0) {
927 u_long mcr;
928 SMC_SELECT_BANK(0);
929 mir = inw(ioaddr + MEMINFO) & 0xff;
930 if (mir == 0xff) mir++;
931 /* Get scale factor for memory size */
932 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
933 mir *= 128 * (1<<((mcr >> 9) & 7));
934 SMC_SELECT_BANK(1);
935 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
936 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
937 if (smc->manfid == MANFID_OSITECH)
938 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
939 if ((rev >> 4) >= 7)
940 smc->cfg |= CFG_MII_SELECT;
941 } else
942 mir = 0;
943
944 if (smc->cfg & CFG_MII_SELECT) {
945 SMC_SELECT_BANK(3);
946
947 for (i = 0; i < 32; i++) {
948 j = mdio_read(dev, i, 1);
949 if ((j != 0) && (j != 0xffff)) break;
950 }
951 smc->mii_if.phy_id = (i < 32) ? i : -1;
952
953 SMC_SELECT_BANK(0);
954 }
955
956 SET_NETDEV_DEV(dev, &link->dev);
957
958 if (register_netdev(dev) != 0) {
959 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
960 goto config_undo;
961 }
962
963 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
964 "hw_addr %pM\n",
965 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
966 dev->dev_addr);
967
968 if (rev > 0) {
969 if (mir & 0x3ff)
970 printk(KERN_INFO " %lu byte", mir);
971 else
972 printk(KERN_INFO " %lu kb", mir>>10);
973 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
974 "MII" : if_names[dev->if_port]);
975 }
976
977 if (smc->cfg & CFG_MII_SELECT) {
978 if (smc->mii_if.phy_id != -1) {
979 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n",
980 smc->mii_if.phy_id, j);
981 } else {
982 printk(KERN_NOTICE " No MII transceivers found!\n");
983 }
984 }
985 return 0;
986
987 config_undo:
988 unregister_netdev(dev);
989 config_failed:
990 smc91c92_release(link);
991 free_netdev(dev);
992 return -ENODEV;
993 } /* smc91c92_config */
994
995 /*======================================================================
996
997 After a card is removed, smc91c92_release() will unregister the net
998 device, and release the PCMCIA configuration. If the device is
999 still open, this will be postponed until it is closed.
1000
1001 ======================================================================*/
1002
1003 static void smc91c92_release(struct pcmcia_device *link)
1004 {
1005 dev_dbg(&link->dev, "smc91c92_release\n");
1006 if (link->win) {
1007 struct net_device *dev = link->priv;
1008 struct smc_private *smc = netdev_priv(dev);
1009 iounmap(smc->base);
1010 }
1011 pcmcia_disable_device(link);
1012 }
1013
1014 /*======================================================================
1015
1016 MII interface support for SMC91cXX based cards
1017 ======================================================================*/
1018
1019 #define MDIO_SHIFT_CLK 0x04
1020 #define MDIO_DATA_OUT 0x01
1021 #define MDIO_DIR_WRITE 0x08
1022 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1023 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1024 #define MDIO_DATA_READ 0x02
1025
1026 static void mdio_sync(unsigned int addr)
1027 {
1028 int bits;
1029 for (bits = 0; bits < 32; bits++) {
1030 outb(MDIO_DATA_WRITE1, addr);
1031 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1032 }
1033 }
1034
1035 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1036 {
1037 unsigned int addr = dev->base_addr + MGMT;
1038 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1039 int i, retval = 0;
1040
1041 mdio_sync(addr);
1042 for (i = 13; i >= 0; i--) {
1043 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1044 outb(dat, addr);
1045 outb(dat | MDIO_SHIFT_CLK, addr);
1046 }
1047 for (i = 19; i > 0; i--) {
1048 outb(0, addr);
1049 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1050 outb(MDIO_SHIFT_CLK, addr);
1051 }
1052 return (retval>>1) & 0xffff;
1053 }
1054
1055 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1056 {
1057 unsigned int addr = dev->base_addr + MGMT;
1058 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1059 int i;
1060
1061 mdio_sync(addr);
1062 for (i = 31; i >= 0; i--) {
1063 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1064 outb(dat, addr);
1065 outb(dat | MDIO_SHIFT_CLK, addr);
1066 }
1067 for (i = 1; i >= 0; i--) {
1068 outb(0, addr);
1069 outb(MDIO_SHIFT_CLK, addr);
1070 }
1071 }
1072
1073 /*======================================================================
1074
1075 The driver core code, most of which should be common with a
1076 non-PCMCIA implementation.
1077
1078 ======================================================================*/
1079
1080 #ifdef PCMCIA_DEBUG
1081 static void smc_dump(struct net_device *dev)
1082 {
1083 unsigned int ioaddr = dev->base_addr;
1084 u_short i, w, save;
1085 save = inw(ioaddr + BANK_SELECT);
1086 for (w = 0; w < 4; w++) {
1087 SMC_SELECT_BANK(w);
1088 printk(KERN_DEBUG "bank %d: ", w);
1089 for (i = 0; i < 14; i += 2)
1090 printk(" %04x", inw(ioaddr + i));
1091 printk("\n");
1092 }
1093 outw(save, ioaddr + BANK_SELECT);
1094 }
1095 #endif
1096
1097 static int smc_open(struct net_device *dev)
1098 {
1099 struct smc_private *smc = netdev_priv(dev);
1100 struct pcmcia_device *link = smc->p_dev;
1101
1102 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1103 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1104 #ifdef PCMCIA_DEBUG
1105 smc_dump(dev);
1106 #endif
1107
1108 /* Check that the PCMCIA card is still here. */
1109 if (!pcmcia_dev_present(link))
1110 return -ENODEV;
1111 /* Physical device present signature. */
1112 if (check_sig(link) < 0) {
1113 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1114 return -ENODEV;
1115 }
1116 link->open++;
1117
1118 netif_start_queue(dev);
1119 smc->saved_skb = NULL;
1120 smc->packets_waiting = 0;
1121
1122 smc_reset(dev);
1123 init_timer(&smc->media);
1124 smc->media.function = &media_check;
1125 smc->media.data = (u_long) dev;
1126 smc->media.expires = jiffies + HZ;
1127 add_timer(&smc->media);
1128
1129 return 0;
1130 } /* smc_open */
1131
1132 /*====================================================================*/
1133
1134 static int smc_close(struct net_device *dev)
1135 {
1136 struct smc_private *smc = netdev_priv(dev);
1137 struct pcmcia_device *link = smc->p_dev;
1138 unsigned int ioaddr = dev->base_addr;
1139
1140 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1141 dev->name, inw(ioaddr + BANK_SELECT));
1142
1143 netif_stop_queue(dev);
1144
1145 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1146 Don't bother to check for chip present. */
1147 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1148 outw(0, ioaddr + INTERRUPT);
1149 SMC_SELECT_BANK(0);
1150 mask_bits(0xff00, ioaddr + RCR);
1151 mask_bits(0xff00, ioaddr + TCR);
1152
1153 /* Put the chip into power-down mode. */
1154 SMC_SELECT_BANK(1);
1155 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1156
1157 link->open--;
1158 del_timer_sync(&smc->media);
1159
1160 return 0;
1161 } /* smc_close */
1162
1163 /*======================================================================
1164
1165 Transfer a packet to the hardware and trigger the packet send.
1166 This may be called at either from either the Tx queue code
1167 or the interrupt handler.
1168
1169 ======================================================================*/
1170
1171 static void smc_hardware_send_packet(struct net_device * dev)
1172 {
1173 struct smc_private *smc = netdev_priv(dev);
1174 struct sk_buff *skb = smc->saved_skb;
1175 unsigned int ioaddr = dev->base_addr;
1176 u_char packet_no;
1177
1178 if (!skb) {
1179 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1180 return;
1181 }
1182
1183 /* There should be a packet slot waiting. */
1184 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1185 if (packet_no & 0x80) {
1186 /* If not, there is a hardware problem! Likely an ejected card. */
1187 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1188 " failed, status %#2.2x.\n", dev->name, packet_no);
1189 dev_kfree_skb_irq(skb);
1190 smc->saved_skb = NULL;
1191 netif_start_queue(dev);
1192 return;
1193 }
1194
1195 dev->stats.tx_bytes += skb->len;
1196 /* The card should use the just-allocated buffer. */
1197 outw(packet_no, ioaddr + PNR_ARR);
1198 /* point to the beginning of the packet */
1199 outw(PTR_AUTOINC , ioaddr + POINTER);
1200
1201 /* Send the packet length (+6 for status, length and ctl byte)
1202 and the status word (set to zeros). */
1203 {
1204 u_char *buf = skb->data;
1205 u_int length = skb->len; /* The chip will pad to ethernet min. */
1206
1207 pr_debug("%s: Trying to xmit packet of length %d.\n",
1208 dev->name, length);
1209
1210 /* send the packet length: +6 for status word, length, and ctl */
1211 outw(0, ioaddr + DATA_1);
1212 outw(length + 6, ioaddr + DATA_1);
1213 outsw(ioaddr + DATA_1, buf, length >> 1);
1214
1215 /* The odd last byte, if there is one, goes in the control word. */
1216 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1217 }
1218
1219 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1220 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1221 (inw(ioaddr + INTERRUPT) & 0xff00),
1222 ioaddr + INTERRUPT);
1223
1224 /* The chip does the rest of the work. */
1225 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1226
1227 smc->saved_skb = NULL;
1228 dev_kfree_skb_irq(skb);
1229 dev->trans_start = jiffies;
1230 netif_start_queue(dev);
1231 return;
1232 }
1233
1234 /*====================================================================*/
1235
1236 static void smc_tx_timeout(struct net_device *dev)
1237 {
1238 struct smc_private *smc = netdev_priv(dev);
1239 unsigned int ioaddr = dev->base_addr;
1240
1241 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1242 "Tx_status %2.2x status %4.4x.\n",
1243 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1244 dev->stats.tx_errors++;
1245 smc_reset(dev);
1246 dev->trans_start = jiffies;
1247 smc->saved_skb = NULL;
1248 netif_wake_queue(dev);
1249 }
1250
1251 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1252 struct net_device *dev)
1253 {
1254 struct smc_private *smc = netdev_priv(dev);
1255 unsigned int ioaddr = dev->base_addr;
1256 u_short num_pages;
1257 short time_out, ir;
1258 unsigned long flags;
1259
1260 netif_stop_queue(dev);
1261
1262 pr_debug("%s: smc_start_xmit(length = %d) called,"
1263 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1264
1265 if (smc->saved_skb) {
1266 /* THIS SHOULD NEVER HAPPEN. */
1267 dev->stats.tx_aborted_errors++;
1268 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1269 dev->name);
1270 return NETDEV_TX_BUSY;
1271 }
1272 smc->saved_skb = skb;
1273
1274 num_pages = skb->len >> 8;
1275
1276 if (num_pages > 7) {
1277 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1278 dev_kfree_skb (skb);
1279 smc->saved_skb = NULL;
1280 dev->stats.tx_dropped++;
1281 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1282 }
1283 /* A packet is now waiting. */
1284 smc->packets_waiting++;
1285
1286 spin_lock_irqsave(&smc->lock, flags);
1287 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1288
1289 /* need MC_RESET to keep the memory consistent. errata? */
1290 if (smc->rx_ovrn) {
1291 outw(MC_RESET, ioaddr + MMU_CMD);
1292 smc->rx_ovrn = 0;
1293 }
1294
1295 /* Allocate the memory; send the packet now if we win. */
1296 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1297 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1298 ir = inw(ioaddr+INTERRUPT);
1299 if (ir & IM_ALLOC_INT) {
1300 /* Acknowledge the interrupt, send the packet. */
1301 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1302 smc_hardware_send_packet(dev); /* Send the packet now.. */
1303 spin_unlock_irqrestore(&smc->lock, flags);
1304 return NETDEV_TX_OK;
1305 }
1306 }
1307
1308 /* Otherwise defer until the Tx-space-allocated interrupt. */
1309 pr_debug("%s: memory allocation deferred.\n", dev->name);
1310 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1311 spin_unlock_irqrestore(&smc->lock, flags);
1312
1313 return NETDEV_TX_OK;
1314 }
1315
1316 /*======================================================================
1317
1318 Handle a Tx anomolous event. Entered while in Window 2.
1319
1320 ======================================================================*/
1321
1322 static void smc_tx_err(struct net_device * dev)
1323 {
1324 struct smc_private *smc = netdev_priv(dev);
1325 unsigned int ioaddr = dev->base_addr;
1326 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1327 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1328 int tx_status;
1329
1330 /* select this as the packet to read from */
1331 outw(packet_no, ioaddr + PNR_ARR);
1332
1333 /* read the first word from this packet */
1334 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1335
1336 tx_status = inw(ioaddr + DATA_1);
1337
1338 dev->stats.tx_errors++;
1339 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1340 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1341 if (tx_status & TS_16COL) {
1342 dev->stats.tx_aborted_errors++;
1343 smc->tx_err++;
1344 }
1345
1346 if (tx_status & TS_SUCCESS) {
1347 printk(KERN_NOTICE "%s: Successful packet caused error "
1348 "interrupt?\n", dev->name);
1349 }
1350 /* re-enable transmit */
1351 SMC_SELECT_BANK(0);
1352 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1353 SMC_SELECT_BANK(2);
1354
1355 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1356
1357 /* one less packet waiting for me */
1358 smc->packets_waiting--;
1359
1360 outw(saved_packet, ioaddr + PNR_ARR);
1361 return;
1362 }
1363
1364 /*====================================================================*/
1365
1366 static void smc_eph_irq(struct net_device *dev)
1367 {
1368 struct smc_private *smc = netdev_priv(dev);
1369 unsigned int ioaddr = dev->base_addr;
1370 u_short card_stats, ephs;
1371
1372 SMC_SELECT_BANK(0);
1373 ephs = inw(ioaddr + EPH);
1374 pr_debug("%s: Ethernet protocol handler interrupt, status"
1375 " %4.4x.\n", dev->name, ephs);
1376 /* Could be a counter roll-over warning: update stats. */
1377 card_stats = inw(ioaddr + COUNTER);
1378 /* single collisions */
1379 dev->stats.collisions += card_stats & 0xF;
1380 card_stats >>= 4;
1381 /* multiple collisions */
1382 dev->stats.collisions += card_stats & 0xF;
1383 #if 0 /* These are for when linux supports these statistics */
1384 card_stats >>= 4; /* deferred */
1385 card_stats >>= 4; /* excess deferred */
1386 #endif
1387 /* If we had a transmit error we must re-enable the transmitter. */
1388 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1389
1390 /* Clear a link error interrupt. */
1391 SMC_SELECT_BANK(1);
1392 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1393 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1394 ioaddr + CONTROL);
1395 SMC_SELECT_BANK(2);
1396 }
1397
1398 /*====================================================================*/
1399
1400 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1401 {
1402 struct net_device *dev = dev_id;
1403 struct smc_private *smc = netdev_priv(dev);
1404 unsigned int ioaddr;
1405 u_short saved_bank, saved_pointer, mask, status;
1406 unsigned int handled = 1;
1407 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1408
1409 if (!netif_device_present(dev))
1410 return IRQ_NONE;
1411
1412 ioaddr = dev->base_addr;
1413
1414 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1415 irq, ioaddr);
1416
1417 spin_lock(&smc->lock);
1418 smc->watchdog = 0;
1419 saved_bank = inw(ioaddr + BANK_SELECT);
1420 if ((saved_bank & 0xff00) != 0x3300) {
1421 /* The device does not exist -- the card could be off-line, or
1422 maybe it has been ejected. */
1423 pr_debug("%s: SMC91c92 interrupt %d for non-existent"
1424 "/ejected device.\n", dev->name, irq);
1425 handled = 0;
1426 goto irq_done;
1427 }
1428
1429 SMC_SELECT_BANK(2);
1430 saved_pointer = inw(ioaddr + POINTER);
1431 mask = inw(ioaddr + INTERRUPT) >> 8;
1432 /* clear all interrupts */
1433 outw(0, ioaddr + INTERRUPT);
1434
1435 do { /* read the status flag, and mask it */
1436 status = inw(ioaddr + INTERRUPT) & 0xff;
1437 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1438 status, mask);
1439 if ((status & mask) == 0) {
1440 if (bogus_cnt == INTR_WORK)
1441 handled = 0;
1442 break;
1443 }
1444 if (status & IM_RCV_INT) {
1445 /* Got a packet(s). */
1446 smc_rx(dev);
1447 }
1448 if (status & IM_TX_INT) {
1449 smc_tx_err(dev);
1450 outw(IM_TX_INT, ioaddr + INTERRUPT);
1451 }
1452 status &= mask;
1453 if (status & IM_TX_EMPTY_INT) {
1454 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1455 mask &= ~IM_TX_EMPTY_INT;
1456 dev->stats.tx_packets += smc->packets_waiting;
1457 smc->packets_waiting = 0;
1458 }
1459 if (status & IM_ALLOC_INT) {
1460 /* Clear this interrupt so it doesn't happen again */
1461 mask &= ~IM_ALLOC_INT;
1462
1463 smc_hardware_send_packet(dev);
1464
1465 /* enable xmit interrupts based on this */
1466 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1467
1468 /* and let the card send more packets to me */
1469 netif_wake_queue(dev);
1470 }
1471 if (status & IM_RX_OVRN_INT) {
1472 dev->stats.rx_errors++;
1473 dev->stats.rx_fifo_errors++;
1474 if (smc->duplex)
1475 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1476 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1477 }
1478 if (status & IM_EPH_INT)
1479 smc_eph_irq(dev);
1480 } while (--bogus_cnt);
1481
1482 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x"
1483 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1484
1485 /* restore state register */
1486 outw((mask<<8), ioaddr + INTERRUPT);
1487 outw(saved_pointer, ioaddr + POINTER);
1488 SMC_SELECT_BANK(saved_bank);
1489
1490 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1491
1492 irq_done:
1493
1494 if ((smc->manfid == MANFID_OSITECH) &&
1495 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1496 /* Retrigger interrupt if needed */
1497 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1498 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1499 }
1500 if (smc->manfid == MANFID_MOTOROLA) {
1501 u_char cor;
1502 cor = readb(smc->base + MOT_UART + CISREG_COR);
1503 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1504 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1505 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1506 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1507 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1508 }
1509 #ifdef DOES_NOT_WORK
1510 if (smc->base != NULL) { /* Megahertz MFC's */
1511 readb(smc->base+MEGAHERTZ_ISR);
1512 readb(smc->base+MEGAHERTZ_ISR);
1513 }
1514 #endif
1515 spin_unlock(&smc->lock);
1516 return IRQ_RETVAL(handled);
1517 }
1518
1519 /*====================================================================*/
1520
1521 static void smc_rx(struct net_device *dev)
1522 {
1523 unsigned int ioaddr = dev->base_addr;
1524 int rx_status;
1525 int packet_length; /* Caution: not frame length, rather words
1526 to transfer from the chip. */
1527
1528 /* Assertion: we are in Window 2. */
1529
1530 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1531 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1532 dev->name);
1533 return;
1534 }
1535
1536 /* Reset the read pointer, and read the status and packet length. */
1537 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1538 rx_status = inw(ioaddr + DATA_1);
1539 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1540
1541 pr_debug("%s: Receive status %4.4x length %d.\n",
1542 dev->name, rx_status, packet_length);
1543
1544 if (!(rx_status & RS_ERRORS)) {
1545 /* do stuff to make a new packet */
1546 struct sk_buff *skb;
1547
1548 /* Note: packet_length adds 5 or 6 extra bytes here! */
1549 skb = dev_alloc_skb(packet_length+2);
1550
1551 if (skb == NULL) {
1552 pr_debug("%s: Low memory, packet dropped.\n", dev->name);
1553 dev->stats.rx_dropped++;
1554 outw(MC_RELEASE, ioaddr + MMU_CMD);
1555 return;
1556 }
1557
1558 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1559 skb_reserve(skb, 2);
1560 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1561 (packet_length+1)>>1);
1562 skb->protocol = eth_type_trans(skb, dev);
1563
1564 netif_rx(skb);
1565 dev->last_rx = jiffies;
1566 dev->stats.rx_packets++;
1567 dev->stats.rx_bytes += packet_length;
1568 if (rx_status & RS_MULTICAST)
1569 dev->stats.multicast++;
1570 } else {
1571 /* error ... */
1572 dev->stats.rx_errors++;
1573
1574 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1575 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1576 dev->stats.rx_length_errors++;
1577 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1578 }
1579 /* Let the MMU free the memory of this packet. */
1580 outw(MC_RELEASE, ioaddr + MMU_CMD);
1581
1582 return;
1583 }
1584
1585 /*======================================================================
1586
1587 Set the receive mode.
1588
1589 This routine is used by both the protocol level to notify us of
1590 promiscuous/multicast mode changes, and by the open/reset code to
1591 initialize the Rx registers. We always set the multicast list and
1592 leave the receiver running.
1593
1594 ======================================================================*/
1595
1596 static void set_rx_mode(struct net_device *dev)
1597 {
1598 unsigned int ioaddr = dev->base_addr;
1599 struct smc_private *smc = netdev_priv(dev);
1600 unsigned char multicast_table[8];
1601 unsigned long flags;
1602 u_short rx_cfg_setting;
1603 int i;
1604
1605 memset(multicast_table, 0, sizeof(multicast_table));
1606
1607 if (dev->flags & IFF_PROMISC) {
1608 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1609 } else if (dev->flags & IFF_ALLMULTI)
1610 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1611 else {
1612 if (!netdev_mc_empty(dev)) {
1613 struct dev_mc_list *mc_addr;
1614
1615 netdev_for_each_mc_addr(mc_addr, dev) {
1616 u_int position = ether_crc(6, mc_addr->dmi_addr);
1617 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1618 }
1619 }
1620 rx_cfg_setting = RxStripCRC | RxEnable;
1621 }
1622
1623 /* Load MC table and Rx setting into the chip without interrupts. */
1624 spin_lock_irqsave(&smc->lock, flags);
1625 SMC_SELECT_BANK(3);
1626 for (i = 0; i < 8; i++)
1627 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1628 SMC_SELECT_BANK(0);
1629 outw(rx_cfg_setting, ioaddr + RCR);
1630 SMC_SELECT_BANK(2);
1631 spin_unlock_irqrestore(&smc->lock, flags);
1632
1633 return;
1634 }
1635
1636 /*======================================================================
1637
1638 Senses when a card's config changes. Here, it's coax or TP.
1639
1640 ======================================================================*/
1641
1642 static int s9k_config(struct net_device *dev, struct ifmap *map)
1643 {
1644 struct smc_private *smc = netdev_priv(dev);
1645 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1646 if (smc->cfg & CFG_MII_SELECT)
1647 return -EOPNOTSUPP;
1648 else if (map->port > 2)
1649 return -EINVAL;
1650 dev->if_port = map->port;
1651 printk(KERN_INFO "%s: switched to %s port\n",
1652 dev->name, if_names[dev->if_port]);
1653 smc_reset(dev);
1654 }
1655 return 0;
1656 }
1657
1658 /*======================================================================
1659
1660 Reset the chip, reloading every register that might be corrupted.
1661
1662 ======================================================================*/
1663
1664 /*
1665 Set transceiver type, perhaps to something other than what the user
1666 specified in dev->if_port.
1667 */
1668 static void smc_set_xcvr(struct net_device *dev, int if_port)
1669 {
1670 struct smc_private *smc = netdev_priv(dev);
1671 unsigned int ioaddr = dev->base_addr;
1672 u_short saved_bank;
1673
1674 saved_bank = inw(ioaddr + BANK_SELECT);
1675 SMC_SELECT_BANK(1);
1676 if (if_port == 2) {
1677 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1678 if ((smc->manfid == MANFID_OSITECH) &&
1679 (smc->cardid != PRODID_OSITECH_SEVEN))
1680 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1681 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1682 } else {
1683 outw(smc->cfg, ioaddr + CONFIG);
1684 if ((smc->manfid == MANFID_OSITECH) &&
1685 (smc->cardid != PRODID_OSITECH_SEVEN))
1686 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1687 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1688 }
1689 SMC_SELECT_BANK(saved_bank);
1690 }
1691
1692 static void smc_reset(struct net_device *dev)
1693 {
1694 unsigned int ioaddr = dev->base_addr;
1695 struct smc_private *smc = netdev_priv(dev);
1696 int i;
1697
1698 pr_debug("%s: smc91c92 reset called.\n", dev->name);
1699
1700 /* The first interaction must be a write to bring the chip out
1701 of sleep mode. */
1702 SMC_SELECT_BANK(0);
1703 /* Reset the chip. */
1704 outw(RCR_SOFTRESET, ioaddr + RCR);
1705 udelay(10);
1706
1707 /* Clear the transmit and receive configuration registers. */
1708 outw(RCR_CLEAR, ioaddr + RCR);
1709 outw(TCR_CLEAR, ioaddr + TCR);
1710
1711 /* Set the Window 1 control, configuration and station addr registers.
1712 No point in writing the I/O base register ;-> */
1713 SMC_SELECT_BANK(1);
1714 /* Automatically release successfully transmitted packets,
1715 Accept link errors, counter and Tx error interrupts. */
1716 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1717 ioaddr + CONTROL);
1718 smc_set_xcvr(dev, dev->if_port);
1719 if ((smc->manfid == MANFID_OSITECH) &&
1720 (smc->cardid != PRODID_OSITECH_SEVEN))
1721 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1722 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1723 ioaddr - 0x10 + OSITECH_AUI_PWR);
1724
1725 /* Fill in the physical address. The databook is wrong about the order! */
1726 for (i = 0; i < 6; i += 2)
1727 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1728 ioaddr + ADDR0 + i);
1729
1730 /* Reset the MMU */
1731 SMC_SELECT_BANK(2);
1732 outw(MC_RESET, ioaddr + MMU_CMD);
1733 outw(0, ioaddr + INTERRUPT);
1734
1735 /* Re-enable the chip. */
1736 SMC_SELECT_BANK(0);
1737 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1738 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1739 set_rx_mode(dev);
1740
1741 if (smc->cfg & CFG_MII_SELECT) {
1742 SMC_SELECT_BANK(3);
1743
1744 /* Reset MII */
1745 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1746
1747 /* Advertise 100F, 100H, 10F, 10H */
1748 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1749
1750 /* Restart MII autonegotiation */
1751 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1752 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1753 }
1754
1755 /* Enable interrupts. */
1756 SMC_SELECT_BANK(2);
1757 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1758 ioaddr + INTERRUPT);
1759 }
1760
1761 /*======================================================================
1762
1763 Media selection timer routine
1764
1765 ======================================================================*/
1766
1767 static void media_check(u_long arg)
1768 {
1769 struct net_device *dev = (struct net_device *) arg;
1770 struct smc_private *smc = netdev_priv(dev);
1771 unsigned int ioaddr = dev->base_addr;
1772 u_short i, media, saved_bank;
1773 u_short link;
1774 unsigned long flags;
1775
1776 spin_lock_irqsave(&smc->lock, flags);
1777
1778 saved_bank = inw(ioaddr + BANK_SELECT);
1779
1780 if (!netif_device_present(dev))
1781 goto reschedule;
1782
1783 SMC_SELECT_BANK(2);
1784
1785 /* need MC_RESET to keep the memory consistent. errata? */
1786 if (smc->rx_ovrn) {
1787 outw(MC_RESET, ioaddr + MMU_CMD);
1788 smc->rx_ovrn = 0;
1789 }
1790 i = inw(ioaddr + INTERRUPT);
1791 SMC_SELECT_BANK(0);
1792 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1793 SMC_SELECT_BANK(1);
1794 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1795
1796 SMC_SELECT_BANK(saved_bank);
1797 spin_unlock_irqrestore(&smc->lock, flags);
1798
1799 /* Check for pending interrupt with watchdog flag set: with
1800 this, we can limp along even if the interrupt is blocked */
1801 if (smc->watchdog++ && ((i>>8) & i)) {
1802 if (!smc->fast_poll)
1803 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1804 local_irq_save(flags);
1805 smc_interrupt(dev->irq, dev);
1806 local_irq_restore(flags);
1807 smc->fast_poll = HZ;
1808 }
1809 if (smc->fast_poll) {
1810 smc->fast_poll--;
1811 smc->media.expires = jiffies + HZ/100;
1812 add_timer(&smc->media);
1813 return;
1814 }
1815
1816 spin_lock_irqsave(&smc->lock, flags);
1817
1818 saved_bank = inw(ioaddr + BANK_SELECT);
1819
1820 if (smc->cfg & CFG_MII_SELECT) {
1821 if (smc->mii_if.phy_id < 0)
1822 goto reschedule;
1823
1824 SMC_SELECT_BANK(3);
1825 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1826 if (!link || (link == 0xffff)) {
1827 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1828 smc->mii_if.phy_id = -1;
1829 goto reschedule;
1830 }
1831
1832 link &= 0x0004;
1833 if (link != smc->link_status) {
1834 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1835 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1836 (link) ? "found" : "lost");
1837 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1838 ? TCR_FDUPLX : 0);
1839 if (link) {
1840 printk(KERN_INFO "%s: autonegotiation complete: "
1841 "%sbaseT-%cD selected\n", dev->name,
1842 ((p & 0x0180) ? "100" : "10"),
1843 (smc->duplex ? 'F' : 'H'));
1844 }
1845 SMC_SELECT_BANK(0);
1846 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1847 smc->link_status = link;
1848 }
1849 goto reschedule;
1850 }
1851
1852 /* Ignore collisions unless we've had no rx's recently */
1853 if (time_after(jiffies, dev->last_rx + HZ)) {
1854 if (smc->tx_err || (smc->media_status & EPH_16COL))
1855 media |= EPH_16COL;
1856 }
1857 smc->tx_err = 0;
1858
1859 if (media != smc->media_status) {
1860 if ((media & smc->media_status & 1) &&
1861 ((smc->media_status ^ media) & EPH_LINK_OK))
1862 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1863 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1864 else if ((media & smc->media_status & 2) &&
1865 ((smc->media_status ^ media) & EPH_16COL))
1866 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1867 (media & EPH_16COL ? "problem" : "ok"));
1868 if (dev->if_port == 0) {
1869 if (media & 1) {
1870 if (media & EPH_LINK_OK)
1871 printk(KERN_INFO "%s: flipped to 10baseT\n",
1872 dev->name);
1873 else
1874 smc_set_xcvr(dev, 2);
1875 } else {
1876 if (media & EPH_16COL)
1877 smc_set_xcvr(dev, 1);
1878 else
1879 printk(KERN_INFO "%s: flipped to 10base2\n",
1880 dev->name);
1881 }
1882 }
1883 smc->media_status = media;
1884 }
1885
1886 reschedule:
1887 smc->media.expires = jiffies + HZ;
1888 add_timer(&smc->media);
1889 SMC_SELECT_BANK(saved_bank);
1890 spin_unlock_irqrestore(&smc->lock, flags);
1891 }
1892
1893 static int smc_link_ok(struct net_device *dev)
1894 {
1895 unsigned int ioaddr = dev->base_addr;
1896 struct smc_private *smc = netdev_priv(dev);
1897
1898 if (smc->cfg & CFG_MII_SELECT) {
1899 return mii_link_ok(&smc->mii_if);
1900 } else {
1901 SMC_SELECT_BANK(0);
1902 return inw(ioaddr + EPH) & EPH_LINK_OK;
1903 }
1904 }
1905
1906 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1907 {
1908 u16 tmp;
1909 unsigned int ioaddr = dev->base_addr;
1910
1911 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
1912 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
1913
1914 SMC_SELECT_BANK(1);
1915 tmp = inw(ioaddr + CONFIG);
1916 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1917 ecmd->transceiver = XCVR_INTERNAL;
1918 ecmd->speed = SPEED_10;
1919 ecmd->phy_address = ioaddr + MGMT;
1920
1921 SMC_SELECT_BANK(0);
1922 tmp = inw(ioaddr + TCR);
1923 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1924
1925 return 0;
1926 }
1927
1928 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1929 {
1930 u16 tmp;
1931 unsigned int ioaddr = dev->base_addr;
1932
1933 if (ecmd->speed != SPEED_10)
1934 return -EINVAL;
1935 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
1936 return -EINVAL;
1937 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
1938 return -EINVAL;
1939 if (ecmd->transceiver != XCVR_INTERNAL)
1940 return -EINVAL;
1941
1942 if (ecmd->port == PORT_AUI)
1943 smc_set_xcvr(dev, 1);
1944 else
1945 smc_set_xcvr(dev, 0);
1946
1947 SMC_SELECT_BANK(0);
1948 tmp = inw(ioaddr + TCR);
1949 if (ecmd->duplex == DUPLEX_FULL)
1950 tmp |= TCR_FDUPLX;
1951 else
1952 tmp &= ~TCR_FDUPLX;
1953 outw(tmp, ioaddr + TCR);
1954
1955 return 0;
1956 }
1957
1958 static int check_if_running(struct net_device *dev)
1959 {
1960 if (!netif_running(dev))
1961 return -EINVAL;
1962 return 0;
1963 }
1964
1965 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1966 {
1967 strcpy(info->driver, DRV_NAME);
1968 strcpy(info->version, DRV_VERSION);
1969 }
1970
1971 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1972 {
1973 struct smc_private *smc = netdev_priv(dev);
1974 unsigned int ioaddr = dev->base_addr;
1975 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1976 int ret;
1977 unsigned long flags;
1978
1979 spin_lock_irqsave(&smc->lock, flags);
1980 SMC_SELECT_BANK(3);
1981 if (smc->cfg & CFG_MII_SELECT)
1982 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
1983 else
1984 ret = smc_netdev_get_ecmd(dev, ecmd);
1985 SMC_SELECT_BANK(saved_bank);
1986 spin_unlock_irqrestore(&smc->lock, flags);
1987 return ret;
1988 }
1989
1990 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1991 {
1992 struct smc_private *smc = netdev_priv(dev);
1993 unsigned int ioaddr = dev->base_addr;
1994 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1995 int ret;
1996 unsigned long flags;
1997
1998 spin_lock_irqsave(&smc->lock, flags);
1999 SMC_SELECT_BANK(3);
2000 if (smc->cfg & CFG_MII_SELECT)
2001 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2002 else
2003 ret = smc_netdev_set_ecmd(dev, ecmd);
2004 SMC_SELECT_BANK(saved_bank);
2005 spin_unlock_irqrestore(&smc->lock, flags);
2006 return ret;
2007 }
2008
2009 static u32 smc_get_link(struct net_device *dev)
2010 {
2011 struct smc_private *smc = netdev_priv(dev);
2012 unsigned int ioaddr = dev->base_addr;
2013 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2014 u32 ret;
2015 unsigned long flags;
2016
2017 spin_lock_irqsave(&smc->lock, flags);
2018 SMC_SELECT_BANK(3);
2019 ret = smc_link_ok(dev);
2020 SMC_SELECT_BANK(saved_bank);
2021 spin_unlock_irqrestore(&smc->lock, flags);
2022 return ret;
2023 }
2024
2025 static int smc_nway_reset(struct net_device *dev)
2026 {
2027 struct smc_private *smc = netdev_priv(dev);
2028 if (smc->cfg & CFG_MII_SELECT) {
2029 unsigned int ioaddr = dev->base_addr;
2030 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2031 int res;
2032
2033 SMC_SELECT_BANK(3);
2034 res = mii_nway_restart(&smc->mii_if);
2035 SMC_SELECT_BANK(saved_bank);
2036
2037 return res;
2038 } else
2039 return -EOPNOTSUPP;
2040 }
2041
2042 static const struct ethtool_ops ethtool_ops = {
2043 .begin = check_if_running,
2044 .get_drvinfo = smc_get_drvinfo,
2045 .get_settings = smc_get_settings,
2046 .set_settings = smc_set_settings,
2047 .get_link = smc_get_link,
2048 .nway_reset = smc_nway_reset,
2049 };
2050
2051 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2052 {
2053 struct smc_private *smc = netdev_priv(dev);
2054 struct mii_ioctl_data *mii = if_mii(rq);
2055 int rc = 0;
2056 u16 saved_bank;
2057 unsigned int ioaddr = dev->base_addr;
2058 unsigned long flags;
2059
2060 if (!netif_running(dev))
2061 return -EINVAL;
2062
2063 spin_lock_irqsave(&smc->lock, flags);
2064 saved_bank = inw(ioaddr + BANK_SELECT);
2065 SMC_SELECT_BANK(3);
2066 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2067 SMC_SELECT_BANK(saved_bank);
2068 spin_unlock_irqrestore(&smc->lock, flags);
2069 return rc;
2070 }
2071
2072 static struct pcmcia_device_id smc91c92_ids[] = {
2073 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2074 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2075 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2076 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2077 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2078 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2079 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2080 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2081 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2082 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2083 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2084 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2085 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2086 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2087 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2088 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2089 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2090 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2091 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2092 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2093 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2094 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2095 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2096 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2097 /* These conflict with other cards! */
2098 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2099 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2100 PCMCIA_DEVICE_NULL,
2101 };
2102 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2103
2104 static struct pcmcia_driver smc91c92_cs_driver = {
2105 .owner = THIS_MODULE,
2106 .drv = {
2107 .name = "smc91c92_cs",
2108 },
2109 .probe = smc91c92_probe,
2110 .remove = smc91c92_detach,
2111 .id_table = smc91c92_ids,
2112 .suspend = smc91c92_suspend,
2113 .resume = smc91c92_resume,
2114 };
2115
2116 static int __init init_smc91c92_cs(void)
2117 {
2118 return pcmcia_register_driver(&smc91c92_cs_driver);
2119 }
2120
2121 static void __exit exit_smc91c92_cs(void)
2122 {
2123 pcmcia_unregister_driver(&smc91c92_cs_driver);
2124 }
2125
2126 module_init(init_smc91c92_cs);
2127 module_exit(exit_smc91c92_cs);
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