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/slab.h>
33 #include <linux/string.h>
34 #include <linux/timer.h>
35 #include <linux/interrupt.h>
36 #include <linux/delay.h>
37 #include <linux/crc32.h>
38 #include <linux/netdevice.h>
39 #include <linux/etherdevice.h>
40 #include <linux/skbuff.h>
41 #include <linux/if_arp.h>
42 #include <linux/ioport.h>
43 #include <linux/ethtool.h>
44 #include <linux/mii.h>
45 #include <linux/jiffies.h>
46 #include <linux/firmware.h>
47
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ciscode.h>
51 #include <pcmcia/ds.h>
52 #include <pcmcia/ss.h>
53
54 #include <asm/io.h>
55 #include <linux/uaccess.h>
56
57 /*====================================================================*/
58
59 static const char *if_names[] = { "auto", "10baseT", "10base2"};
60
61 /* Firmware name */
62 #define FIRMWARE_NAME "ositech/Xilinx7OD.bin"
63
64 /* Module parameters */
65
66 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
67 MODULE_LICENSE("GPL");
68 MODULE_FIRMWARE(FIRMWARE_NAME);
69
70 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
71
72 /*
73 Transceiver/media type.
74 0 = auto
75 1 = 10baseT (and autoselect if #define AUTOSELECT),
76 2 = AUI/10base2,
77 */
78 INT_MODULE_PARM(if_port, 0);
79
80
81 #define DRV_NAME "smc91c92_cs"
82 #define DRV_VERSION "1.123"
83
84 /*====================================================================*/
85
86 /* Operational parameter that usually are not changed. */
87
88 /* Time in jiffies before concluding Tx hung */
89 #define TX_TIMEOUT ((400*HZ)/1000)
90
91 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
92 #define INTR_WORK 4
93
94 /* Times to check the check the chip before concluding that it doesn't
95 currently have room for another Tx packet. */
96 #define MEMORY_WAIT_TIME 8
97
98 struct smc_private {
99 struct pcmcia_device *p_dev;
100 spinlock_t lock;
101 u_short manfid;
102 u_short cardid;
103
104 struct sk_buff *saved_skb;
105 int packets_waiting;
106 void __iomem *base;
107 u_short cfg;
108 struct timer_list media;
109 int watchdog, tx_err;
110 u_short media_status;
111 u_short fast_poll;
112 u_short link_status;
113 struct mii_if_info mii_if;
114 int duplex;
115 int rx_ovrn;
116 unsigned long last_rx;
117 };
118
119 /* Special definitions for Megahertz multifunction cards */
120 #define MEGAHERTZ_ISR 0x0380
121
122 /* Special function registers for Motorola Mariner */
123 #define MOT_LAN 0x0000
124 #define MOT_UART 0x0020
125 #define MOT_EEPROM 0x20
126
127 #define MOT_NORMAL \
128 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
129
130 /* Special function registers for Ositech cards */
131 #define OSITECH_AUI_CTL 0x0c
132 #define OSITECH_PWRDOWN 0x0d
133 #define OSITECH_RESET 0x0e
134 #define OSITECH_ISR 0x0f
135 #define OSITECH_AUI_PWR 0x0c
136 #define OSITECH_RESET_ISR 0x0e
137
138 #define OSI_AUI_PWR 0x40
139 #define OSI_LAN_PWRDOWN 0x02
140 #define OSI_MODEM_PWRDOWN 0x01
141 #define OSI_LAN_RESET 0x02
142 #define OSI_MODEM_RESET 0x01
143
144 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
145 #define BANK_SELECT 14 /* Window select register. */
146 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
147
148 /* Bank 0 registers. */
149 #define TCR 0 /* transmit control register */
150 #define TCR_CLEAR 0 /* do NOTHING */
151 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
152 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
153 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
154 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
155 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
156
157 #define EPH 2 /* Ethernet Protocol Handler report. */
158 #define EPH_TX_SUC 0x0001
159 #define EPH_SNGLCOL 0x0002
160 #define EPH_MULCOL 0x0004
161 #define EPH_LTX_MULT 0x0008
162 #define EPH_16COL 0x0010
163 #define EPH_SQET 0x0020
164 #define EPH_LTX_BRD 0x0040
165 #define EPH_TX_DEFR 0x0080
166 #define EPH_LAT_COL 0x0200
167 #define EPH_LOST_CAR 0x0400
168 #define EPH_EXC_DEF 0x0800
169 #define EPH_CTR_ROL 0x1000
170 #define EPH_RX_OVRN 0x2000
171 #define EPH_LINK_OK 0x4000
172 #define EPH_TX_UNRN 0x8000
173 #define MEMINFO 8 /* Memory Information Register */
174 #define MEMCFG 10 /* Memory Configuration Register */
175
176 /* Bank 1 registers. */
177 #define CONFIG 0
178 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
179 #define CFG_NO_WAIT 0x1000
180 #define CFG_FULL_STEP 0x0400
181 #define CFG_SET_SQLCH 0x0200
182 #define CFG_AUI_SELECT 0x0100
183 #define CFG_16BIT 0x0080
184 #define CFG_DIS_LINK 0x0040
185 #define CFG_STATIC 0x0030
186 #define CFG_IRQ_SEL_1 0x0004
187 #define CFG_IRQ_SEL_0 0x0002
188 #define BASE_ADDR 2
189 #define ADDR0 4
190 #define GENERAL 10
191 #define CONTROL 12
192 #define CTL_STORE 0x0001
193 #define CTL_RELOAD 0x0002
194 #define CTL_EE_SELECT 0x0004
195 #define CTL_TE_ENABLE 0x0020
196 #define CTL_CR_ENABLE 0x0040
197 #define CTL_LE_ENABLE 0x0080
198 #define CTL_AUTO_RELEASE 0x0800
199 #define CTL_POWERDOWN 0x2000
200
201 /* Bank 2 registers. */
202 #define MMU_CMD 0
203 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
204 #define MC_RESET 0x40
205 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
206 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
207 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
208 #define PNR_ARR 2
209 #define FIFO_PORTS 4
210 #define FP_RXEMPTY 0x8000
211 #define POINTER 6
212 #define PTR_AUTO_INC 0x0040
213 #define PTR_READ 0x2000
214 #define PTR_AUTOINC 0x4000
215 #define PTR_RCV 0x8000
216 #define DATA_1 8
217 #define INTERRUPT 12
218 #define IM_RCV_INT 0x1
219 #define IM_TX_INT 0x2
220 #define IM_TX_EMPTY_INT 0x4
221 #define IM_ALLOC_INT 0x8
222 #define IM_RX_OVRN_INT 0x10
223 #define IM_EPH_INT 0x20
224
225 #define RCR 4
226 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
227 RxEnable = 0x0100, RxStripCRC = 0x0200};
228 #define RCR_SOFTRESET 0x8000 /* resets the chip */
229 #define RCR_STRIP_CRC 0x200 /* strips CRC */
230 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
231 #define RCR_ALMUL 0x4 /* receive all multicast packets */
232 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
233
234 /* the normal settings for the RCR register : */
235 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
236 #define RCR_CLEAR 0x0 /* set it to a base state */
237 #define COUNTER 6
238
239 /* BANK 3 -- not the same values as in smc9194! */
240 #define MULTICAST0 0
241 #define MULTICAST2 2
242 #define MULTICAST4 4
243 #define MULTICAST6 6
244 #define MGMT 8
245 #define REVISION 0x0a
246
247 /* Transmit status bits. */
248 #define TS_SUCCESS 0x0001
249 #define TS_16COL 0x0010
250 #define TS_LATCOL 0x0200
251 #define TS_LOSTCAR 0x0400
252
253 /* Receive status bits. */
254 #define RS_ALGNERR 0x8000
255 #define RS_BADCRC 0x2000
256 #define RS_ODDFRAME 0x1000
257 #define RS_TOOLONG 0x0800
258 #define RS_TOOSHORT 0x0400
259 #define RS_MULTICAST 0x0001
260 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
261
262 #define set_bits(v, p) outw(inw(p)|(v), (p))
263 #define mask_bits(v, p) outw(inw(p)&(v), (p))
264
265 /*====================================================================*/
266
267 static void smc91c92_detach(struct pcmcia_device *p_dev);
268 static int smc91c92_config(struct pcmcia_device *link);
269 static void smc91c92_release(struct pcmcia_device *link);
270
271 static int smc_open(struct net_device *dev);
272 static int smc_close(struct net_device *dev);
273 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
274 static void smc_tx_timeout(struct net_device *dev, unsigned int txqueue);
275 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
276 struct net_device *dev);
277 static irqreturn_t smc_interrupt(int irq, void *dev_id);
278 static void smc_rx(struct net_device *dev);
279 static void set_rx_mode(struct net_device *dev);
280 static int s9k_config(struct net_device *dev, struct ifmap *map);
281 static void smc_set_xcvr(struct net_device *dev, int if_port);
282 static void smc_reset(struct net_device *dev);
283 static void media_check(struct timer_list *t);
284 static void mdio_sync(unsigned int addr);
285 static int mdio_read(struct net_device *dev, int phy_id, int loc);
286 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
287 static int smc_link_ok(struct net_device *dev);
288 static const struct ethtool_ops ethtool_ops;
289
290 static const struct net_device_ops smc_netdev_ops = {
291 .ndo_open = smc_open,
292 .ndo_stop = smc_close,
293 .ndo_start_xmit = smc_start_xmit,
294 .ndo_tx_timeout = smc_tx_timeout,
295 .ndo_set_config = s9k_config,
296 .ndo_set_rx_mode = set_rx_mode,
297 .ndo_eth_ioctl = smc_ioctl,
298 .ndo_set_mac_address = eth_mac_addr,
299 .ndo_validate_addr = eth_validate_addr,
300 };
301
smc91c92_probe(struct pcmcia_device * link)302 static int smc91c92_probe(struct pcmcia_device *link)
303 {
304 struct smc_private *smc;
305 struct net_device *dev;
306
307 dev_dbg(&link->dev, "smc91c92_attach()\n");
308
309 /* Create new ethernet device */
310 dev = alloc_etherdev(sizeof(struct smc_private));
311 if (!dev)
312 return -ENOMEM;
313 smc = netdev_priv(dev);
314 smc->p_dev = link;
315 link->priv = dev;
316
317 spin_lock_init(&smc->lock);
318
319 /* The SMC91c92-specific entries in the device structure. */
320 dev->netdev_ops = &smc_netdev_ops;
321 dev->ethtool_ops = ðtool_ops;
322 dev->watchdog_timeo = TX_TIMEOUT;
323
324 smc->mii_if.dev = dev;
325 smc->mii_if.mdio_read = mdio_read;
326 smc->mii_if.mdio_write = mdio_write;
327 smc->mii_if.phy_id_mask = 0x1f;
328 smc->mii_if.reg_num_mask = 0x1f;
329
330 return smc91c92_config(link);
331 } /* smc91c92_attach */
332
smc91c92_detach(struct pcmcia_device * link)333 static void smc91c92_detach(struct pcmcia_device *link)
334 {
335 struct net_device *dev = link->priv;
336
337 dev_dbg(&link->dev, "smc91c92_detach\n");
338
339 unregister_netdev(dev);
340
341 smc91c92_release(link);
342
343 free_netdev(dev);
344 } /* smc91c92_detach */
345
346 /*====================================================================*/
347
cvt_ascii_address(struct net_device * dev,char * s)348 static int cvt_ascii_address(struct net_device *dev, char *s)
349 {
350 u8 mac[ETH_ALEN];
351 int i, j, da, c;
352
353 if (strlen(s) != 12)
354 return -1;
355 for (i = 0; i < 6; i++) {
356 da = 0;
357 for (j = 0; j < 2; j++) {
358 c = *s++;
359 da <<= 4;
360 da += ((c >= '0') && (c <= '9')) ?
361 (c - '0') : ((c & 0x0f) + 9);
362 }
363 mac[i] = da;
364 }
365 eth_hw_addr_set(dev, mac);
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
mhz_3288_power(struct pcmcia_device * link)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
mhz_mfc_config_check(struct pcmcia_device * p_dev,void * priv_data)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
mhz_mfc_config(struct pcmcia_device * link)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
pcmcia_get_versmac(struct pcmcia_device * p_dev,tuple_t * tuple,void * priv)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
mhz_setup(struct pcmcia_device * link)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
mot_config(struct pcmcia_device * link)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
mot_setup(struct pcmcia_device * link)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 u8 mac[ETH_ALEN];
545 u_int addr;
546
547 /* Read Ethernet address from Serial EEPROM */
548
549 for (i = 0; i < 3; i++) {
550 SMC_SELECT_BANK(2);
551 outw(MOT_EEPROM + i, ioaddr + POINTER);
552 SMC_SELECT_BANK(1);
553 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
554
555 for (loop = wait = 0; loop < 200; loop++) {
556 udelay(10);
557 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
558 if (wait == 0) break;
559 }
560
561 if (wait)
562 return -1;
563
564 addr = inw(ioaddr + GENERAL);
565 mac[2*i] = addr & 0xff;
566 mac[2*i+1] = (addr >> 8) & 0xff;
567 }
568 eth_hw_addr_set(dev, mac);
569
570 return 0;
571 }
572
573 /*====================================================================*/
574
smc_configcheck(struct pcmcia_device * p_dev,void * priv_data)575 static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data)
576 {
577 p_dev->resource[0]->end = 16;
578 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
579 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
580
581 return pcmcia_request_io(p_dev);
582 }
583
smc_config(struct pcmcia_device * link)584 static int smc_config(struct pcmcia_device *link)
585 {
586 struct net_device *dev = link->priv;
587 int i;
588
589 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
590
591 i = pcmcia_loop_config(link, smc_configcheck, NULL);
592 if (!i)
593 dev->base_addr = link->resource[0]->start;
594
595 return i;
596 }
597
598
smc_setup(struct pcmcia_device * link)599 static int smc_setup(struct pcmcia_device *link)
600 {
601 struct net_device *dev = link->priv;
602
603 /* Check for a LAN function extension tuple */
604 if (!pcmcia_get_mac_from_cis(link, dev))
605 return 0;
606
607 /* Try the third string in the Version 1 Version/ID tuple. */
608 if (link->prod_id[2]) {
609 if (cvt_ascii_address(dev, link->prod_id[2]) == 0)
610 return 0;
611 }
612 return -1;
613 }
614
615 /*====================================================================*/
616
osi_config(struct pcmcia_device * link)617 static int osi_config(struct pcmcia_device *link)
618 {
619 struct net_device *dev = link->priv;
620 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
621 int i, j;
622
623 link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ;
624 link->resource[0]->end = 64;
625 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
626 link->resource[1]->end = 8;
627
628 /* Enable Hard Decode, LAN, Modem */
629 link->io_lines = 16;
630 link->config_index = 0x23;
631
632 for (i = j = 0; j < 4; j++) {
633 link->resource[1]->start = com[j];
634 i = pcmcia_request_io(link);
635 if (i == 0)
636 break;
637 }
638 if (i != 0) {
639 /* Fallback: turn off hard decode */
640 link->config_index = 0x03;
641 link->resource[1]->end = 0;
642 i = pcmcia_request_io(link);
643 }
644 dev->base_addr = link->resource[0]->start + 0x10;
645 return i;
646 }
647
osi_load_firmware(struct pcmcia_device * link)648 static int osi_load_firmware(struct pcmcia_device *link)
649 {
650 const struct firmware *fw;
651 int i, err;
652
653 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev);
654 if (err) {
655 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME);
656 return err;
657 }
658
659 /* Download the Seven of Diamonds firmware */
660 for (i = 0; i < fw->size; i++) {
661 outb(fw->data[i], link->resource[0]->start + 2);
662 udelay(50);
663 }
664 release_firmware(fw);
665 return err;
666 }
667
pcmcia_osi_mac(struct pcmcia_device * p_dev,tuple_t * tuple,void * priv)668 static int pcmcia_osi_mac(struct pcmcia_device *p_dev,
669 tuple_t *tuple,
670 void *priv)
671 {
672 struct net_device *dev = priv;
673
674 if (tuple->TupleDataLen < 8)
675 return -EINVAL;
676 if (tuple->TupleData[0] != 0x04)
677 return -EINVAL;
678
679 eth_hw_addr_set(dev, &tuple->TupleData[2]);
680 return 0;
681 };
682
683
osi_setup(struct pcmcia_device * link,u_short manfid,u_short cardid)684 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
685 {
686 struct net_device *dev = link->priv;
687 int rc;
688
689 /* Read the station address from tuple 0x90, subtuple 0x04 */
690 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev))
691 return -1;
692
693 if (((manfid == MANFID_OSITECH) &&
694 (cardid == PRODID_OSITECH_SEVEN)) ||
695 ((manfid == MANFID_PSION) &&
696 (cardid == PRODID_PSION_NET100))) {
697 rc = osi_load_firmware(link);
698 if (rc)
699 return rc;
700 } else if (manfid == MANFID_OSITECH) {
701 /* Make sure both functions are powered up */
702 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR);
703 /* Now, turn on the interrupt for both card functions */
704 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR);
705 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
706 inw(link->resource[0]->start + OSITECH_AUI_PWR),
707 inw(link->resource[0]->start + OSITECH_RESET_ISR));
708 }
709 return 0;
710 }
711
smc91c92_suspend(struct pcmcia_device * link)712 static int smc91c92_suspend(struct pcmcia_device *link)
713 {
714 struct net_device *dev = link->priv;
715
716 if (link->open)
717 netif_device_detach(dev);
718
719 return 0;
720 }
721
smc91c92_resume(struct pcmcia_device * link)722 static int smc91c92_resume(struct pcmcia_device *link)
723 {
724 struct net_device *dev = link->priv;
725 struct smc_private *smc = netdev_priv(dev);
726 int i;
727
728 if ((smc->manfid == MANFID_MEGAHERTZ) &&
729 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
730 mhz_3288_power(link);
731 if (smc->manfid == MANFID_MOTOROLA)
732 mot_config(link);
733 if ((smc->manfid == MANFID_OSITECH) &&
734 (smc->cardid != PRODID_OSITECH_SEVEN)) {
735 /* Power up the card and enable interrupts */
736 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
737 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
738 }
739 if (((smc->manfid == MANFID_OSITECH) &&
740 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
741 ((smc->manfid == MANFID_PSION) &&
742 (smc->cardid == PRODID_PSION_NET100))) {
743 i = osi_load_firmware(link);
744 if (i) {
745 netdev_err(dev, "Failed to load firmware\n");
746 return i;
747 }
748 }
749 if (link->open) {
750 smc_reset(dev);
751 netif_device_attach(dev);
752 }
753
754 return 0;
755 }
756
757
758 /*======================================================================
759
760 This verifies that the chip is some SMC91cXX variant, and returns
761 the revision code if successful. Otherwise, it returns -ENODEV.
762
763 ======================================================================*/
764
check_sig(struct pcmcia_device * link)765 static int check_sig(struct pcmcia_device *link)
766 {
767 struct net_device *dev = link->priv;
768 unsigned int ioaddr = dev->base_addr;
769 int width;
770 u_short s;
771
772 SMC_SELECT_BANK(1);
773 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
774 /* Try powering up the chip */
775 outw(0, ioaddr + CONTROL);
776 mdelay(55);
777 }
778
779 /* Try setting bus width */
780 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO);
781 s = inb(ioaddr + CONFIG);
782 if (width)
783 s |= CFG_16BIT;
784 else
785 s &= ~CFG_16BIT;
786 outb(s, ioaddr + CONFIG);
787
788 /* Check Base Address Register to make sure bus width is OK */
789 s = inw(ioaddr + BASE_ADDR);
790 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
791 ((s >> 8) != (s & 0xff))) {
792 SMC_SELECT_BANK(3);
793 s = inw(ioaddr + REVISION);
794 return s & 0xff;
795 }
796
797 if (width) {
798 netdev_info(dev, "using 8-bit IO window\n");
799
800 smc91c92_suspend(link);
801 pcmcia_fixup_iowidth(link);
802 smc91c92_resume(link);
803 return check_sig(link);
804 }
805 return -ENODEV;
806 }
807
smc91c92_config(struct pcmcia_device * link)808 static int smc91c92_config(struct pcmcia_device *link)
809 {
810 struct net_device *dev = link->priv;
811 struct smc_private *smc = netdev_priv(dev);
812 char *name;
813 int i, rev, j = 0;
814 unsigned int ioaddr;
815 u_long mir;
816
817 dev_dbg(&link->dev, "smc91c92_config\n");
818
819 smc->manfid = link->manf_id;
820 smc->cardid = link->card_id;
821
822 if ((smc->manfid == MANFID_OSITECH) &&
823 (smc->cardid != PRODID_OSITECH_SEVEN)) {
824 i = osi_config(link);
825 } else if ((smc->manfid == MANFID_MOTOROLA) ||
826 ((smc->manfid == MANFID_MEGAHERTZ) &&
827 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
828 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
829 i = mhz_mfc_config(link);
830 } else {
831 i = smc_config(link);
832 }
833 if (i)
834 goto config_failed;
835
836 i = pcmcia_request_irq(link, smc_interrupt);
837 if (i)
838 goto config_failed;
839 i = pcmcia_enable_device(link);
840 if (i)
841 goto config_failed;
842
843 if (smc->manfid == MANFID_MOTOROLA)
844 mot_config(link);
845
846 dev->irq = link->irq;
847
848 if ((if_port >= 0) && (if_port <= 2))
849 dev->if_port = if_port;
850 else
851 dev_notice(&link->dev, "invalid if_port requested\n");
852
853 switch (smc->manfid) {
854 case MANFID_OSITECH:
855 case MANFID_PSION:
856 i = osi_setup(link, smc->manfid, smc->cardid); break;
857 case MANFID_SMC:
858 case MANFID_NEW_MEDIA:
859 i = smc_setup(link); break;
860 case 0x128: /* For broken Megahertz cards */
861 case MANFID_MEGAHERTZ:
862 i = mhz_setup(link); break;
863 case MANFID_MOTOROLA:
864 default: /* get the hw address from EEPROM */
865 i = mot_setup(link); break;
866 }
867
868 if (i != 0) {
869 dev_notice(&link->dev, "Unable to find hardware address.\n");
870 goto config_failed;
871 }
872
873 smc->duplex = 0;
874 smc->rx_ovrn = 0;
875
876 rev = check_sig(link);
877 name = "???";
878 if (rev > 0)
879 switch (rev >> 4) {
880 case 3: name = "92"; break;
881 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
882 case 5: name = "95"; break;
883 case 7: name = "100"; break;
884 case 8: name = "100-FD"; break;
885 case 9: name = "110"; break;
886 }
887
888 ioaddr = dev->base_addr;
889 if (rev > 0) {
890 u_long mcr;
891 SMC_SELECT_BANK(0);
892 mir = inw(ioaddr + MEMINFO) & 0xff;
893 if (mir == 0xff) mir++;
894 /* Get scale factor for memory size */
895 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
896 mir *= 128 * (1<<((mcr >> 9) & 7));
897 SMC_SELECT_BANK(1);
898 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
899 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
900 if (smc->manfid == MANFID_OSITECH)
901 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
902 if ((rev >> 4) >= 7)
903 smc->cfg |= CFG_MII_SELECT;
904 } else
905 mir = 0;
906
907 if (smc->cfg & CFG_MII_SELECT) {
908 SMC_SELECT_BANK(3);
909
910 for (i = 0; i < 32; i++) {
911 j = mdio_read(dev, i, 1);
912 if ((j != 0) && (j != 0xffff)) break;
913 }
914 smc->mii_if.phy_id = (i < 32) ? i : -1;
915
916 SMC_SELECT_BANK(0);
917 }
918
919 SET_NETDEV_DEV(dev, &link->dev);
920
921 if (register_netdev(dev) != 0) {
922 dev_err(&link->dev, "register_netdev() failed\n");
923 goto config_undo;
924 }
925
926 netdev_info(dev, "smc91c%s rev %d: io %#3lx, irq %d, hw_addr %pM\n",
927 name, (rev & 0x0f), dev->base_addr, dev->irq, dev->dev_addr);
928
929 if (rev > 0) {
930 if (mir & 0x3ff)
931 netdev_info(dev, " %lu byte", mir);
932 else
933 netdev_info(dev, " %lu kb", mir>>10);
934 pr_cont(" buffer, %s xcvr\n",
935 (smc->cfg & CFG_MII_SELECT) ? "MII" : if_names[dev->if_port]);
936 }
937
938 if (smc->cfg & CFG_MII_SELECT) {
939 if (smc->mii_if.phy_id != -1) {
940 netdev_dbg(dev, " MII transceiver at index %d, status %x\n",
941 smc->mii_if.phy_id, j);
942 } else {
943 netdev_notice(dev, " No MII transceivers found!\n");
944 }
945 }
946 return 0;
947
948 config_undo:
949 unregister_netdev(dev);
950 config_failed:
951 smc91c92_release(link);
952 free_netdev(dev);
953 return -ENODEV;
954 } /* smc91c92_config */
955
smc91c92_release(struct pcmcia_device * link)956 static void smc91c92_release(struct pcmcia_device *link)
957 {
958 dev_dbg(&link->dev, "smc91c92_release\n");
959 if (link->resource[2]->end) {
960 struct net_device *dev = link->priv;
961 struct smc_private *smc = netdev_priv(dev);
962 iounmap(smc->base);
963 }
964 pcmcia_disable_device(link);
965 }
966
967 /*======================================================================
968
969 MII interface support for SMC91cXX based cards
970 ======================================================================*/
971
972 #define MDIO_SHIFT_CLK 0x04
973 #define MDIO_DATA_OUT 0x01
974 #define MDIO_DIR_WRITE 0x08
975 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
976 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
977 #define MDIO_DATA_READ 0x02
978
mdio_sync(unsigned int addr)979 static void mdio_sync(unsigned int addr)
980 {
981 int bits;
982 for (bits = 0; bits < 32; bits++) {
983 outb(MDIO_DATA_WRITE1, addr);
984 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
985 }
986 }
987
mdio_read(struct net_device * dev,int phy_id,int loc)988 static int mdio_read(struct net_device *dev, int phy_id, int loc)
989 {
990 unsigned int addr = dev->base_addr + MGMT;
991 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
992 int i, retval = 0;
993
994 mdio_sync(addr);
995 for (i = 13; i >= 0; i--) {
996 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
997 outb(dat, addr);
998 outb(dat | MDIO_SHIFT_CLK, addr);
999 }
1000 for (i = 19; i > 0; i--) {
1001 outb(0, addr);
1002 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1003 outb(MDIO_SHIFT_CLK, addr);
1004 }
1005 return (retval>>1) & 0xffff;
1006 }
1007
mdio_write(struct net_device * dev,int phy_id,int loc,int value)1008 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1009 {
1010 unsigned int addr = dev->base_addr + MGMT;
1011 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1012 int i;
1013
1014 mdio_sync(addr);
1015 for (i = 31; i >= 0; i--) {
1016 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1017 outb(dat, addr);
1018 outb(dat | MDIO_SHIFT_CLK, addr);
1019 }
1020 for (i = 1; i >= 0; i--) {
1021 outb(0, addr);
1022 outb(MDIO_SHIFT_CLK, addr);
1023 }
1024 }
1025
1026 /*======================================================================
1027
1028 The driver core code, most of which should be common with a
1029 non-PCMCIA implementation.
1030
1031 ======================================================================*/
1032
1033 #ifdef PCMCIA_DEBUG
smc_dump(struct net_device * dev)1034 static void smc_dump(struct net_device *dev)
1035 {
1036 unsigned int ioaddr = dev->base_addr;
1037 u_short i, w, save;
1038 save = inw(ioaddr + BANK_SELECT);
1039 for (w = 0; w < 4; w++) {
1040 SMC_SELECT_BANK(w);
1041 netdev_dbg(dev, "bank %d: ", w);
1042 for (i = 0; i < 14; i += 2)
1043 pr_cont(" %04x", inw(ioaddr + i));
1044 pr_cont("\n");
1045 }
1046 outw(save, ioaddr + BANK_SELECT);
1047 }
1048 #endif
1049
smc_open(struct net_device * dev)1050 static int smc_open(struct net_device *dev)
1051 {
1052 struct smc_private *smc = netdev_priv(dev);
1053 struct pcmcia_device *link = smc->p_dev;
1054
1055 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n",
1056 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1057 #ifdef PCMCIA_DEBUG
1058 smc_dump(dev);
1059 #endif
1060
1061 /* Check that the PCMCIA card is still here. */
1062 if (!pcmcia_dev_present(link))
1063 return -ENODEV;
1064 /* Physical device present signature. */
1065 if (check_sig(link) < 0) {
1066 netdev_info(dev, "Yikes! Bad chip signature!\n");
1067 return -ENODEV;
1068 }
1069 link->open++;
1070
1071 netif_start_queue(dev);
1072 smc->saved_skb = NULL;
1073 smc->packets_waiting = 0;
1074
1075 smc_reset(dev);
1076 timer_setup(&smc->media, media_check, 0);
1077 mod_timer(&smc->media, jiffies + HZ);
1078
1079 return 0;
1080 } /* smc_open */
1081
1082 /*====================================================================*/
1083
smc_close(struct net_device * dev)1084 static int smc_close(struct net_device *dev)
1085 {
1086 struct smc_private *smc = netdev_priv(dev);
1087 struct pcmcia_device *link = smc->p_dev;
1088 unsigned int ioaddr = dev->base_addr;
1089
1090 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n",
1091 dev->name, inw(ioaddr + BANK_SELECT));
1092
1093 netif_stop_queue(dev);
1094
1095 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1096 Don't bother to check for chip present. */
1097 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1098 outw(0, ioaddr + INTERRUPT);
1099 SMC_SELECT_BANK(0);
1100 mask_bits(0xff00, ioaddr + RCR);
1101 mask_bits(0xff00, ioaddr + TCR);
1102
1103 /* Put the chip into power-down mode. */
1104 SMC_SELECT_BANK(1);
1105 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1106
1107 link->open--;
1108 del_timer_sync(&smc->media);
1109
1110 return 0;
1111 } /* smc_close */
1112
1113 /*======================================================================
1114
1115 Transfer a packet to the hardware and trigger the packet send.
1116 This may be called at either from either the Tx queue code
1117 or the interrupt handler.
1118
1119 ======================================================================*/
1120
smc_hardware_send_packet(struct net_device * dev)1121 static void smc_hardware_send_packet(struct net_device * dev)
1122 {
1123 struct smc_private *smc = netdev_priv(dev);
1124 struct sk_buff *skb = smc->saved_skb;
1125 unsigned int ioaddr = dev->base_addr;
1126 u_char packet_no;
1127
1128 if (!skb) {
1129 netdev_err(dev, "In XMIT with no packet to send\n");
1130 return;
1131 }
1132
1133 /* There should be a packet slot waiting. */
1134 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1135 if (packet_no & 0x80) {
1136 /* If not, there is a hardware problem! Likely an ejected card. */
1137 netdev_warn(dev, "hardware Tx buffer allocation failed, status %#2.2x\n",
1138 packet_no);
1139 dev_kfree_skb_irq(skb);
1140 smc->saved_skb = NULL;
1141 netif_start_queue(dev);
1142 return;
1143 }
1144
1145 dev->stats.tx_bytes += skb->len;
1146 /* The card should use the just-allocated buffer. */
1147 outw(packet_no, ioaddr + PNR_ARR);
1148 /* point to the beginning of the packet */
1149 outw(PTR_AUTOINC , ioaddr + POINTER);
1150
1151 /* Send the packet length (+6 for status, length and ctl byte)
1152 and the status word (set to zeros). */
1153 {
1154 u_char *buf = skb->data;
1155 u_int length = skb->len; /* The chip will pad to ethernet min. */
1156
1157 netdev_dbg(dev, "Trying to xmit packet of length %d\n", length);
1158
1159 /* send the packet length: +6 for status word, length, and ctl */
1160 outw(0, ioaddr + DATA_1);
1161 outw(length + 6, ioaddr + DATA_1);
1162 outsw(ioaddr + DATA_1, buf, length >> 1);
1163
1164 /* The odd last byte, if there is one, goes in the control word. */
1165 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1166 }
1167
1168 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1169 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1170 (inw(ioaddr + INTERRUPT) & 0xff00),
1171 ioaddr + INTERRUPT);
1172
1173 /* The chip does the rest of the work. */
1174 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1175
1176 smc->saved_skb = NULL;
1177 dev_kfree_skb_irq(skb);
1178 netif_trans_update(dev);
1179 netif_start_queue(dev);
1180 }
1181
1182 /*====================================================================*/
1183
smc_tx_timeout(struct net_device * dev,unsigned int txqueue)1184 static void smc_tx_timeout(struct net_device *dev, unsigned int txqueue)
1185 {
1186 struct smc_private *smc = netdev_priv(dev);
1187 unsigned int ioaddr = dev->base_addr;
1188
1189 netdev_notice(dev, "transmit timed out, Tx_status %2.2x status %4.4x.\n",
1190 inw(ioaddr)&0xff, inw(ioaddr + 2));
1191 dev->stats.tx_errors++;
1192 smc_reset(dev);
1193 netif_trans_update(dev); /* prevent tx timeout */
1194 smc->saved_skb = NULL;
1195 netif_wake_queue(dev);
1196 }
1197
smc_start_xmit(struct sk_buff * skb,struct net_device * dev)1198 static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
1199 struct net_device *dev)
1200 {
1201 struct smc_private *smc = netdev_priv(dev);
1202 unsigned int ioaddr = dev->base_addr;
1203 u_short num_pages;
1204 short time_out, ir;
1205 unsigned long flags;
1206
1207 netif_stop_queue(dev);
1208
1209 netdev_dbg(dev, "smc_start_xmit(length = %d) called, status %04x\n",
1210 skb->len, inw(ioaddr + 2));
1211
1212 if (smc->saved_skb) {
1213 /* THIS SHOULD NEVER HAPPEN. */
1214 dev->stats.tx_aborted_errors++;
1215 netdev_dbg(dev, "Internal error -- sent packet while busy\n");
1216 return NETDEV_TX_BUSY;
1217 }
1218 smc->saved_skb = skb;
1219
1220 num_pages = skb->len >> 8;
1221
1222 if (num_pages > 7) {
1223 netdev_err(dev, "Far too big packet error: %d pages\n", num_pages);
1224 dev_kfree_skb (skb);
1225 smc->saved_skb = NULL;
1226 dev->stats.tx_dropped++;
1227 return NETDEV_TX_OK; /* Do not re-queue this packet. */
1228 }
1229 /* A packet is now waiting. */
1230 smc->packets_waiting++;
1231
1232 spin_lock_irqsave(&smc->lock, flags);
1233 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1234
1235 /* need MC_RESET to keep the memory consistent. errata? */
1236 if (smc->rx_ovrn) {
1237 outw(MC_RESET, ioaddr + MMU_CMD);
1238 smc->rx_ovrn = 0;
1239 }
1240
1241 /* Allocate the memory; send the packet now if we win. */
1242 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1243 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1244 ir = inw(ioaddr+INTERRUPT);
1245 if (ir & IM_ALLOC_INT) {
1246 /* Acknowledge the interrupt, send the packet. */
1247 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1248 smc_hardware_send_packet(dev); /* Send the packet now.. */
1249 spin_unlock_irqrestore(&smc->lock, flags);
1250 return NETDEV_TX_OK;
1251 }
1252 }
1253
1254 /* Otherwise defer until the Tx-space-allocated interrupt. */
1255 netdev_dbg(dev, "memory allocation deferred.\n");
1256 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1257 spin_unlock_irqrestore(&smc->lock, flags);
1258
1259 return NETDEV_TX_OK;
1260 }
1261
1262 /*======================================================================
1263
1264 Handle a Tx anomalous event. Entered while in Window 2.
1265
1266 ======================================================================*/
1267
smc_tx_err(struct net_device * dev)1268 static void smc_tx_err(struct net_device * dev)
1269 {
1270 struct smc_private *smc = netdev_priv(dev);
1271 unsigned int ioaddr = dev->base_addr;
1272 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1273 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1274 int tx_status;
1275
1276 /* select this as the packet to read from */
1277 outw(packet_no, ioaddr + PNR_ARR);
1278
1279 /* read the first word from this packet */
1280 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1281
1282 tx_status = inw(ioaddr + DATA_1);
1283
1284 dev->stats.tx_errors++;
1285 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++;
1286 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++;
1287 if (tx_status & TS_16COL) {
1288 dev->stats.tx_aborted_errors++;
1289 smc->tx_err++;
1290 }
1291
1292 if (tx_status & TS_SUCCESS) {
1293 netdev_notice(dev, "Successful packet caused error interrupt?\n");
1294 }
1295 /* re-enable transmit */
1296 SMC_SELECT_BANK(0);
1297 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1298 SMC_SELECT_BANK(2);
1299
1300 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1301
1302 /* one less packet waiting for me */
1303 smc->packets_waiting--;
1304
1305 outw(saved_packet, ioaddr + PNR_ARR);
1306 }
1307
1308 /*====================================================================*/
1309
smc_eph_irq(struct net_device * dev)1310 static void smc_eph_irq(struct net_device *dev)
1311 {
1312 struct smc_private *smc = netdev_priv(dev);
1313 unsigned int ioaddr = dev->base_addr;
1314 u_short card_stats, ephs;
1315
1316 SMC_SELECT_BANK(0);
1317 ephs = inw(ioaddr + EPH);
1318 netdev_dbg(dev, "Ethernet protocol handler interrupt, status %4.4x.\n",
1319 ephs);
1320 /* Could be a counter roll-over warning: update stats. */
1321 card_stats = inw(ioaddr + COUNTER);
1322 /* single collisions */
1323 dev->stats.collisions += card_stats & 0xF;
1324 card_stats >>= 4;
1325 /* multiple collisions */
1326 dev->stats.collisions += card_stats & 0xF;
1327 #if 0 /* These are for when linux supports these statistics */
1328 card_stats >>= 4; /* deferred */
1329 card_stats >>= 4; /* excess deferred */
1330 #endif
1331 /* If we had a transmit error we must re-enable the transmitter. */
1332 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1333
1334 /* Clear a link error interrupt. */
1335 SMC_SELECT_BANK(1);
1336 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1337 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1338 ioaddr + CONTROL);
1339 SMC_SELECT_BANK(2);
1340 }
1341
1342 /*====================================================================*/
1343
smc_interrupt(int irq,void * dev_id)1344 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1345 {
1346 struct net_device *dev = dev_id;
1347 struct smc_private *smc = netdev_priv(dev);
1348 unsigned int ioaddr;
1349 u_short saved_bank, saved_pointer, mask, status;
1350 unsigned int handled = 1;
1351 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1352
1353 if (!netif_device_present(dev))
1354 return IRQ_NONE;
1355
1356 ioaddr = dev->base_addr;
1357
1358 netdev_dbg(dev, "SMC91c92 interrupt %d at %#x.\n",
1359 irq, ioaddr);
1360
1361 spin_lock(&smc->lock);
1362 smc->watchdog = 0;
1363 saved_bank = inw(ioaddr + BANK_SELECT);
1364 if ((saved_bank & 0xff00) != 0x3300) {
1365 /* The device does not exist -- the card could be off-line, or
1366 maybe it has been ejected. */
1367 netdev_dbg(dev, "SMC91c92 interrupt %d for non-existent/ejected device.\n",
1368 irq);
1369 handled = 0;
1370 goto irq_done;
1371 }
1372
1373 SMC_SELECT_BANK(2);
1374 saved_pointer = inw(ioaddr + POINTER);
1375 mask = inw(ioaddr + INTERRUPT) >> 8;
1376 /* clear all interrupts */
1377 outw(0, ioaddr + INTERRUPT);
1378
1379 do { /* read the status flag, and mask it */
1380 status = inw(ioaddr + INTERRUPT) & 0xff;
1381 netdev_dbg(dev, "Status is %#2.2x (mask %#2.2x).\n",
1382 status, mask);
1383 if ((status & mask) == 0) {
1384 if (bogus_cnt == INTR_WORK)
1385 handled = 0;
1386 break;
1387 }
1388 if (status & IM_RCV_INT) {
1389 /* Got a packet(s). */
1390 smc_rx(dev);
1391 }
1392 if (status & IM_TX_INT) {
1393 smc_tx_err(dev);
1394 outw(IM_TX_INT, ioaddr + INTERRUPT);
1395 }
1396 status &= mask;
1397 if (status & IM_TX_EMPTY_INT) {
1398 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1399 mask &= ~IM_TX_EMPTY_INT;
1400 dev->stats.tx_packets += smc->packets_waiting;
1401 smc->packets_waiting = 0;
1402 }
1403 if (status & IM_ALLOC_INT) {
1404 /* Clear this interrupt so it doesn't happen again */
1405 mask &= ~IM_ALLOC_INT;
1406
1407 smc_hardware_send_packet(dev);
1408
1409 /* enable xmit interrupts based on this */
1410 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1411
1412 /* and let the card send more packets to me */
1413 netif_wake_queue(dev);
1414 }
1415 if (status & IM_RX_OVRN_INT) {
1416 dev->stats.rx_errors++;
1417 dev->stats.rx_fifo_errors++;
1418 if (smc->duplex)
1419 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1420 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1421 }
1422 if (status & IM_EPH_INT)
1423 smc_eph_irq(dev);
1424 } while (--bogus_cnt);
1425
1426 netdev_dbg(dev, " Restoring saved registers mask %2.2x bank %4.4x pointer %4.4x.\n",
1427 mask, saved_bank, saved_pointer);
1428
1429 /* restore state register */
1430 outw((mask<<8), ioaddr + INTERRUPT);
1431 outw(saved_pointer, ioaddr + POINTER);
1432 SMC_SELECT_BANK(saved_bank);
1433
1434 netdev_dbg(dev, "Exiting interrupt IRQ%d.\n", irq);
1435
1436 irq_done:
1437
1438 if ((smc->manfid == MANFID_OSITECH) &&
1439 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1440 /* Retrigger interrupt if needed */
1441 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1442 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1443 }
1444 if (smc->manfid == MANFID_MOTOROLA) {
1445 u_char cor;
1446 cor = readb(smc->base + MOT_UART + CISREG_COR);
1447 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1448 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1449 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1450 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1451 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1452 }
1453
1454 if ((smc->base != NULL) && /* Megahertz MFC's */
1455 (smc->manfid == MANFID_MEGAHERTZ) &&
1456 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
1457
1458 u_char tmp;
1459 tmp = readb(smc->base+MEGAHERTZ_ISR);
1460 tmp = readb(smc->base+MEGAHERTZ_ISR);
1461
1462 /* Retrigger interrupt if needed */
1463 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1464 writeb(tmp, smc->base + MEGAHERTZ_ISR);
1465 }
1466
1467 spin_unlock(&smc->lock);
1468 return IRQ_RETVAL(handled);
1469 }
1470
1471 /*====================================================================*/
1472
smc_rx(struct net_device * dev)1473 static void smc_rx(struct net_device *dev)
1474 {
1475 unsigned int ioaddr = dev->base_addr;
1476 int rx_status;
1477 int packet_length; /* Caution: not frame length, rather words
1478 to transfer from the chip. */
1479
1480 /* Assertion: we are in Window 2. */
1481
1482 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1483 netdev_err(dev, "smc_rx() with nothing on Rx FIFO\n");
1484 return;
1485 }
1486
1487 /* Reset the read pointer, and read the status and packet length. */
1488 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1489 rx_status = inw(ioaddr + DATA_1);
1490 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1491
1492 netdev_dbg(dev, "Receive status %4.4x length %d.\n",
1493 rx_status, packet_length);
1494
1495 if (!(rx_status & RS_ERRORS)) {
1496 /* do stuff to make a new packet */
1497 struct sk_buff *skb;
1498 struct smc_private *smc = netdev_priv(dev);
1499
1500 /* Note: packet_length adds 5 or 6 extra bytes here! */
1501 skb = netdev_alloc_skb(dev, packet_length+2);
1502
1503 if (skb == NULL) {
1504 netdev_dbg(dev, "Low memory, packet dropped.\n");
1505 dev->stats.rx_dropped++;
1506 outw(MC_RELEASE, ioaddr + MMU_CMD);
1507 return;
1508 }
1509
1510 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1511 skb_reserve(skb, 2);
1512 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1513 (packet_length+1)>>1);
1514 skb->protocol = eth_type_trans(skb, dev);
1515
1516 netif_rx(skb);
1517 smc->last_rx = jiffies;
1518 dev->stats.rx_packets++;
1519 dev->stats.rx_bytes += packet_length;
1520 if (rx_status & RS_MULTICAST)
1521 dev->stats.multicast++;
1522 } else {
1523 /* error ... */
1524 dev->stats.rx_errors++;
1525
1526 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++;
1527 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1528 dev->stats.rx_length_errors++;
1529 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++;
1530 }
1531 /* Let the MMU free the memory of this packet. */
1532 outw(MC_RELEASE, ioaddr + MMU_CMD);
1533 }
1534
1535 /*======================================================================
1536
1537 Set the receive mode.
1538
1539 This routine is used by both the protocol level to notify us of
1540 promiscuous/multicast mode changes, and by the open/reset code to
1541 initialize the Rx registers. We always set the multicast list and
1542 leave the receiver running.
1543
1544 ======================================================================*/
1545
set_rx_mode(struct net_device * dev)1546 static void set_rx_mode(struct net_device *dev)
1547 {
1548 unsigned int ioaddr = dev->base_addr;
1549 struct smc_private *smc = netdev_priv(dev);
1550 unsigned char multicast_table[8];
1551 unsigned long flags;
1552 u_short rx_cfg_setting;
1553 int i;
1554
1555 memset(multicast_table, 0, sizeof(multicast_table));
1556
1557 if (dev->flags & IFF_PROMISC) {
1558 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1559 } else if (dev->flags & IFF_ALLMULTI)
1560 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1561 else {
1562 if (!netdev_mc_empty(dev)) {
1563 struct netdev_hw_addr *ha;
1564
1565 netdev_for_each_mc_addr(ha, dev) {
1566 u_int position = ether_crc(6, ha->addr);
1567 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1568 }
1569 }
1570 rx_cfg_setting = RxStripCRC | RxEnable;
1571 }
1572
1573 /* Load MC table and Rx setting into the chip without interrupts. */
1574 spin_lock_irqsave(&smc->lock, flags);
1575 SMC_SELECT_BANK(3);
1576 for (i = 0; i < 8; i++)
1577 outb(multicast_table[i], ioaddr + MULTICAST0 + i);
1578 SMC_SELECT_BANK(0);
1579 outw(rx_cfg_setting, ioaddr + RCR);
1580 SMC_SELECT_BANK(2);
1581 spin_unlock_irqrestore(&smc->lock, flags);
1582 }
1583
1584 /*======================================================================
1585
1586 Senses when a card's config changes. Here, it's coax or TP.
1587
1588 ======================================================================*/
1589
s9k_config(struct net_device * dev,struct ifmap * map)1590 static int s9k_config(struct net_device *dev, struct ifmap *map)
1591 {
1592 struct smc_private *smc = netdev_priv(dev);
1593 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1594 if (smc->cfg & CFG_MII_SELECT)
1595 return -EOPNOTSUPP;
1596 else if (map->port > 2)
1597 return -EINVAL;
1598 WRITE_ONCE(dev->if_port, map->port);
1599 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
1600 smc_reset(dev);
1601 }
1602 return 0;
1603 }
1604
1605 /*======================================================================
1606
1607 Reset the chip, reloading every register that might be corrupted.
1608
1609 ======================================================================*/
1610
1611 /*
1612 Set transceiver type, perhaps to something other than what the user
1613 specified in dev->if_port.
1614 */
smc_set_xcvr(struct net_device * dev,int if_port)1615 static void smc_set_xcvr(struct net_device *dev, int if_port)
1616 {
1617 struct smc_private *smc = netdev_priv(dev);
1618 unsigned int ioaddr = dev->base_addr;
1619 u_short saved_bank;
1620
1621 saved_bank = inw(ioaddr + BANK_SELECT);
1622 SMC_SELECT_BANK(1);
1623 if (if_port == 2) {
1624 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1625 if ((smc->manfid == MANFID_OSITECH) &&
1626 (smc->cardid != PRODID_OSITECH_SEVEN))
1627 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1628 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1629 } else {
1630 outw(smc->cfg, ioaddr + CONFIG);
1631 if ((smc->manfid == MANFID_OSITECH) &&
1632 (smc->cardid != PRODID_OSITECH_SEVEN))
1633 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1634 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1635 }
1636 SMC_SELECT_BANK(saved_bank);
1637 }
1638
smc_reset(struct net_device * dev)1639 static void smc_reset(struct net_device *dev)
1640 {
1641 unsigned int ioaddr = dev->base_addr;
1642 struct smc_private *smc = netdev_priv(dev);
1643 int i;
1644
1645 netdev_dbg(dev, "smc91c92 reset called.\n");
1646
1647 /* The first interaction must be a write to bring the chip out
1648 of sleep mode. */
1649 SMC_SELECT_BANK(0);
1650 /* Reset the chip. */
1651 outw(RCR_SOFTRESET, ioaddr + RCR);
1652 udelay(10);
1653
1654 /* Clear the transmit and receive configuration registers. */
1655 outw(RCR_CLEAR, ioaddr + RCR);
1656 outw(TCR_CLEAR, ioaddr + TCR);
1657
1658 /* Set the Window 1 control, configuration and station addr registers.
1659 No point in writing the I/O base register ;-> */
1660 SMC_SELECT_BANK(1);
1661 /* Automatically release successfully transmitted packets,
1662 Accept link errors, counter and Tx error interrupts. */
1663 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1664 ioaddr + CONTROL);
1665 smc_set_xcvr(dev, dev->if_port);
1666 if ((smc->manfid == MANFID_OSITECH) &&
1667 (smc->cardid != PRODID_OSITECH_SEVEN))
1668 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1669 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1670 ioaddr - 0x10 + OSITECH_AUI_PWR);
1671
1672 /* Fill in the physical address. The databook is wrong about the order! */
1673 for (i = 0; i < 6; i += 2)
1674 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1675 ioaddr + ADDR0 + i);
1676
1677 /* Reset the MMU */
1678 SMC_SELECT_BANK(2);
1679 outw(MC_RESET, ioaddr + MMU_CMD);
1680 outw(0, ioaddr + INTERRUPT);
1681
1682 /* Re-enable the chip. */
1683 SMC_SELECT_BANK(0);
1684 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1685 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1686 set_rx_mode(dev);
1687
1688 if (smc->cfg & CFG_MII_SELECT) {
1689 SMC_SELECT_BANK(3);
1690
1691 /* Reset MII */
1692 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1693
1694 /* Advertise 100F, 100H, 10F, 10H */
1695 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1696
1697 /* Restart MII autonegotiation */
1698 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1699 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1700 }
1701
1702 /* Enable interrupts. */
1703 SMC_SELECT_BANK(2);
1704 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1705 ioaddr + INTERRUPT);
1706 }
1707
1708 /*======================================================================
1709
1710 Media selection timer routine
1711
1712 ======================================================================*/
1713
media_check(struct timer_list * t)1714 static void media_check(struct timer_list *t)
1715 {
1716 struct smc_private *smc = from_timer(smc, t, media);
1717 struct net_device *dev = smc->mii_if.dev;
1718 unsigned int ioaddr = dev->base_addr;
1719 u_short i, media, saved_bank;
1720 u_short link;
1721 unsigned long flags;
1722
1723 spin_lock_irqsave(&smc->lock, flags);
1724
1725 saved_bank = inw(ioaddr + BANK_SELECT);
1726
1727 if (!netif_device_present(dev))
1728 goto reschedule;
1729
1730 SMC_SELECT_BANK(2);
1731
1732 /* need MC_RESET to keep the memory consistent. errata? */
1733 if (smc->rx_ovrn) {
1734 outw(MC_RESET, ioaddr + MMU_CMD);
1735 smc->rx_ovrn = 0;
1736 }
1737 i = inw(ioaddr + INTERRUPT);
1738 SMC_SELECT_BANK(0);
1739 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1740 SMC_SELECT_BANK(1);
1741 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1742
1743 SMC_SELECT_BANK(saved_bank);
1744 spin_unlock_irqrestore(&smc->lock, flags);
1745
1746 /* Check for pending interrupt with watchdog flag set: with
1747 this, we can limp along even if the interrupt is blocked */
1748 if (smc->watchdog++ && ((i>>8) & i)) {
1749 if (!smc->fast_poll)
1750 netdev_info(dev, "interrupt(s) dropped!\n");
1751 local_irq_save(flags);
1752 smc_interrupt(dev->irq, dev);
1753 local_irq_restore(flags);
1754 smc->fast_poll = HZ;
1755 }
1756 if (smc->fast_poll) {
1757 smc->fast_poll--;
1758 smc->media.expires = jiffies + HZ/100;
1759 add_timer(&smc->media);
1760 return;
1761 }
1762
1763 spin_lock_irqsave(&smc->lock, flags);
1764
1765 saved_bank = inw(ioaddr + BANK_SELECT);
1766
1767 if (smc->cfg & CFG_MII_SELECT) {
1768 if (smc->mii_if.phy_id < 0)
1769 goto reschedule;
1770
1771 SMC_SELECT_BANK(3);
1772 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1773 if (!link || (link == 0xffff)) {
1774 netdev_info(dev, "MII is missing!\n");
1775 smc->mii_if.phy_id = -1;
1776 goto reschedule;
1777 }
1778
1779 link &= 0x0004;
1780 if (link != smc->link_status) {
1781 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1782 netdev_info(dev, "%s link beat\n", link ? "found" : "lost");
1783 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1784 ? TCR_FDUPLX : 0);
1785 if (link) {
1786 netdev_info(dev, "autonegotiation complete: "
1787 "%dbaseT-%cD selected\n",
1788 (p & 0x0180) ? 100 : 10, smc->duplex ? 'F' : 'H');
1789 }
1790 SMC_SELECT_BANK(0);
1791 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1792 smc->link_status = link;
1793 }
1794 goto reschedule;
1795 }
1796
1797 /* Ignore collisions unless we've had no rx's recently */
1798 if (time_after(jiffies, smc->last_rx + HZ)) {
1799 if (smc->tx_err || (smc->media_status & EPH_16COL))
1800 media |= EPH_16COL;
1801 }
1802 smc->tx_err = 0;
1803
1804 if (media != smc->media_status) {
1805 if ((media & smc->media_status & 1) &&
1806 ((smc->media_status ^ media) & EPH_LINK_OK))
1807 netdev_info(dev, "%s link beat\n",
1808 smc->media_status & EPH_LINK_OK ? "lost" : "found");
1809 else if ((media & smc->media_status & 2) &&
1810 ((smc->media_status ^ media) & EPH_16COL))
1811 netdev_info(dev, "coax cable %s\n",
1812 media & EPH_16COL ? "problem" : "ok");
1813 if (dev->if_port == 0) {
1814 if (media & 1) {
1815 if (media & EPH_LINK_OK)
1816 netdev_info(dev, "flipped to 10baseT\n");
1817 else
1818 smc_set_xcvr(dev, 2);
1819 } else {
1820 if (media & EPH_16COL)
1821 smc_set_xcvr(dev, 1);
1822 else
1823 netdev_info(dev, "flipped to 10base2\n");
1824 }
1825 }
1826 smc->media_status = media;
1827 }
1828
1829 reschedule:
1830 smc->media.expires = jiffies + HZ;
1831 add_timer(&smc->media);
1832 SMC_SELECT_BANK(saved_bank);
1833 spin_unlock_irqrestore(&smc->lock, flags);
1834 }
1835
smc_link_ok(struct net_device * dev)1836 static int smc_link_ok(struct net_device *dev)
1837 {
1838 unsigned int ioaddr = dev->base_addr;
1839 struct smc_private *smc = netdev_priv(dev);
1840
1841 if (smc->cfg & CFG_MII_SELECT) {
1842 return mii_link_ok(&smc->mii_if);
1843 } else {
1844 SMC_SELECT_BANK(0);
1845 return inw(ioaddr + EPH) & EPH_LINK_OK;
1846 }
1847 }
1848
smc_netdev_get_ecmd(struct net_device * dev,struct ethtool_link_ksettings * ecmd)1849 static void smc_netdev_get_ecmd(struct net_device *dev,
1850 struct ethtool_link_ksettings *ecmd)
1851 {
1852 u16 tmp;
1853 unsigned int ioaddr = dev->base_addr;
1854 u32 supported;
1855
1856 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->base.port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
1862 ecmd->base.speed = SPEED_10;
1863 ecmd->base.phy_address = ioaddr + MGMT;
1864
1865 SMC_SELECT_BANK(0);
1866 tmp = inw(ioaddr + TCR);
1867 ecmd->base.duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
1868
1869 ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
1870 supported);
1871 }
1872
smc_netdev_set_ecmd(struct net_device * dev,const struct ethtool_link_ksettings * ecmd)1873 static int smc_netdev_set_ecmd(struct net_device *dev,
1874 const struct ethtool_link_ksettings *ecmd)
1875 {
1876 u16 tmp;
1877 unsigned int ioaddr = dev->base_addr;
1878
1879 if (ecmd->base.speed != SPEED_10)
1880 return -EINVAL;
1881 if (ecmd->base.duplex != DUPLEX_HALF &&
1882 ecmd->base.duplex != DUPLEX_FULL)
1883 return -EINVAL;
1884 if (ecmd->base.port != PORT_TP && ecmd->base.port != PORT_AUI)
1885 return -EINVAL;
1886
1887 if (ecmd->base.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->base.duplex == DUPLEX_FULL)
1895 tmp |= TCR_FDUPLX;
1896 else
1897 tmp &= ~TCR_FDUPLX;
1898 outw(tmp, ioaddr + TCR);
1899
1900 return 0;
1901 }
1902
check_if_running(struct net_device * dev)1903 static int check_if_running(struct net_device *dev)
1904 {
1905 if (!netif_running(dev))
1906 return -EINVAL;
1907 return 0;
1908 }
1909
smc_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)1910 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1911 {
1912 strscpy(info->driver, DRV_NAME, sizeof(info->driver));
1913 strscpy(info->version, DRV_VERSION, sizeof(info->version));
1914 }
1915
smc_get_link_ksettings(struct net_device * dev,struct ethtool_link_ksettings * ecmd)1916 static int smc_get_link_ksettings(struct net_device *dev,
1917 struct ethtool_link_ksettings *ecmd)
1918 {
1919 struct smc_private *smc = netdev_priv(dev);
1920 unsigned int ioaddr = dev->base_addr;
1921 u16 saved_bank = inw(ioaddr + BANK_SELECT);
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 mii_ethtool_get_link_ksettings(&smc->mii_if, ecmd);
1928 else
1929 smc_netdev_get_ecmd(dev, ecmd);
1930 SMC_SELECT_BANK(saved_bank);
1931 spin_unlock_irqrestore(&smc->lock, flags);
1932 return 0;
1933 }
1934
smc_set_link_ksettings(struct net_device * dev,const struct ethtool_link_ksettings * ecmd)1935 static int smc_set_link_ksettings(struct net_device *dev,
1936 const struct ethtool_link_ksettings *ecmd)
1937 {
1938 struct smc_private *smc = netdev_priv(dev);
1939 unsigned int ioaddr = dev->base_addr;
1940 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1941 int ret;
1942 unsigned long flags;
1943
1944 spin_lock_irqsave(&smc->lock, flags);
1945 SMC_SELECT_BANK(3);
1946 if (smc->cfg & CFG_MII_SELECT)
1947 ret = mii_ethtool_set_link_ksettings(&smc->mii_if, ecmd);
1948 else
1949 ret = smc_netdev_set_ecmd(dev, ecmd);
1950 SMC_SELECT_BANK(saved_bank);
1951 spin_unlock_irqrestore(&smc->lock, flags);
1952 return ret;
1953 }
1954
smc_get_link(struct net_device * dev)1955 static u32 smc_get_link(struct net_device *dev)
1956 {
1957 struct smc_private *smc = netdev_priv(dev);
1958 unsigned int ioaddr = dev->base_addr;
1959 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1960 u32 ret;
1961 unsigned long flags;
1962
1963 spin_lock_irqsave(&smc->lock, flags);
1964 SMC_SELECT_BANK(3);
1965 ret = smc_link_ok(dev);
1966 SMC_SELECT_BANK(saved_bank);
1967 spin_unlock_irqrestore(&smc->lock, flags);
1968 return ret;
1969 }
1970
smc_nway_reset(struct net_device * dev)1971 static int smc_nway_reset(struct net_device *dev)
1972 {
1973 struct smc_private *smc = netdev_priv(dev);
1974 if (smc->cfg & CFG_MII_SELECT) {
1975 unsigned int ioaddr = dev->base_addr;
1976 u16 saved_bank = inw(ioaddr + BANK_SELECT);
1977 int res;
1978
1979 SMC_SELECT_BANK(3);
1980 res = mii_nway_restart(&smc->mii_if);
1981 SMC_SELECT_BANK(saved_bank);
1982
1983 return res;
1984 } else
1985 return -EOPNOTSUPP;
1986 }
1987
1988 static const struct ethtool_ops ethtool_ops = {
1989 .begin = check_if_running,
1990 .get_drvinfo = smc_get_drvinfo,
1991 .get_link = smc_get_link,
1992 .nway_reset = smc_nway_reset,
1993 .get_link_ksettings = smc_get_link_ksettings,
1994 .set_link_ksettings = smc_set_link_ksettings,
1995 };
1996
smc_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)1997 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
1998 {
1999 struct smc_private *smc = netdev_priv(dev);
2000 struct mii_ioctl_data *mii = if_mii(rq);
2001 int rc = 0;
2002 u16 saved_bank;
2003 unsigned int ioaddr = dev->base_addr;
2004 unsigned long flags;
2005
2006 if (!netif_running(dev))
2007 return -EINVAL;
2008
2009 spin_lock_irqsave(&smc->lock, flags);
2010 saved_bank = inw(ioaddr + BANK_SELECT);
2011 SMC_SELECT_BANK(3);
2012 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2013 SMC_SELECT_BANK(saved_bank);
2014 spin_unlock_irqrestore(&smc->lock, flags);
2015 return rc;
2016 }
2017
2018 static const struct pcmcia_device_id smc91c92_ids[] = {
2019 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2020 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2021 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2022 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2023 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2024 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2025 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2026 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2027 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2028 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2029 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2030 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2031 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2032 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2033 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2034 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2035 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2036 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2037 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2038 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2039 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2040 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2041 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2042 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2043 /* These conflict with other cards! */
2044 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2045 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2046 PCMCIA_DEVICE_NULL,
2047 };
2048 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2049
2050 static struct pcmcia_driver smc91c92_cs_driver = {
2051 .owner = THIS_MODULE,
2052 .name = "smc91c92_cs",
2053 .probe = smc91c92_probe,
2054 .remove = smc91c92_detach,
2055 .id_table = smc91c92_ids,
2056 .suspend = smc91c92_suspend,
2057 .resume = smc91c92_resume,
2058 };
2059 module_pcmcia_driver(smc91c92_cs_driver);
2060