1 /*======================================================================
2
3 A PCMCIA ethernet driver for SMC91c92-based cards.
4
5 This driver supports Megahertz PCMCIA ethernet cards; and
6 Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem
7 multifunction cards.
8
9 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
10
11 smc91c92_cs.c 1.122 2002/10/25 06:26:39
12
13 This driver contains code written by Donald Becker
14 (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au),
15 David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman
16 (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of
17 Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've
18 incorporated some parts of his driver here. I (Dave) wrote most
19 of the PCMCIA glue code, and the Ositech support code. Kelly
20 Stephens (kstephen@holli.com) added support for the Motorola
21 Mariner, with help from Allen Brost.
22
23 This software may be used and distributed according to the terms of
24 the GNU General Public License, incorporated herein by reference.
25
26 ======================================================================*/
27
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/init.h>
31 #include <linux/slab.h>
32 #include <linux/string.h>
33 #include <linux/timer.h>
34 #include <linux/interrupt.h>
35 #include <linux/delay.h>
36 #include <linux/crc32.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/skbuff.h>
40 #include <linux/if_arp.h>
41 #include <linux/ioport.h>
42 #include <linux/ethtool.h>
43 #include <linux/mii.h>
44 #include <linux/jiffies.h>
45
46 #include <pcmcia/cs_types.h>
47 #include <pcmcia/cs.h>
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ciscode.h>
51 #include <pcmcia/ds.h>
52 #include <pcmcia/ss.h>
53
54 #include <asm/io.h>
55 #include <asm/system.h>
56 #include <asm/uaccess.h>
57
58 /* Ositech Seven of Diamonds firmware */
59 #include "ositech.h"
60
61 /*====================================================================*/
62
63 static const char *if_names[] = { "auto", "10baseT", "10base2"};
64
65 /* Module parameters */
66
67 MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver");
68 MODULE_LICENSE("GPL");
69
70 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
71
72 /*
73 Transceiver/media type.
74 0 = auto
75 1 = 10baseT (and autoselect if #define AUTOSELECT),
76 2 = AUI/10base2,
77 */
78 INT_MODULE_PARM(if_port, 0);
79
80 #ifdef PCMCIA_DEBUG
81 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
82 static const char *version =
83 "smc91c92_cs.c 1.123 2006/11/09 Donald Becker, becker@scyld.com.\n";
84 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
85 #else
86 #define DEBUG(n, args...)
87 #endif
88
89 #define DRV_NAME "smc91c92_cs"
90 #define DRV_VERSION "1.123"
91
92 /*====================================================================*/
93
94 /* Operational parameter that usually are not changed. */
95
96 /* Time in jiffies before concluding Tx hung */
97 #define TX_TIMEOUT ((400*HZ)/1000)
98
99 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
100 #define INTR_WORK 4
101
102 /* Times to check the check the chip before concluding that it doesn't
103 currently have room for another Tx packet. */
104 #define MEMORY_WAIT_TIME 8
105
106 struct smc_private {
107 struct pcmcia_device *p_dev;
108 spinlock_t lock;
109 u_short manfid;
110 u_short cardid;
111 struct net_device_stats stats;
112 dev_node_t node;
113 struct sk_buff *saved_skb;
114 int packets_waiting;
115 void __iomem *base;
116 u_short cfg;
117 struct timer_list media;
118 int watchdog, tx_err;
119 u_short media_status;
120 u_short fast_poll;
121 u_short link_status;
122 struct mii_if_info mii_if;
123 int duplex;
124 int rx_ovrn;
125 };
126
127 struct smc_cfg_mem {
128 tuple_t tuple;
129 cisparse_t parse;
130 u_char buf[255];
131 };
132
133 /* Special definitions for Megahertz multifunction cards */
134 #define MEGAHERTZ_ISR 0x0380
135
136 /* Special function registers for Motorola Mariner */
137 #define MOT_LAN 0x0000
138 #define MOT_UART 0x0020
139 #define MOT_EEPROM 0x20
140
141 #define MOT_NORMAL \
142 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
143
144 /* Special function registers for Ositech cards */
145 #define OSITECH_AUI_CTL 0x0c
146 #define OSITECH_PWRDOWN 0x0d
147 #define OSITECH_RESET 0x0e
148 #define OSITECH_ISR 0x0f
149 #define OSITECH_AUI_PWR 0x0c
150 #define OSITECH_RESET_ISR 0x0e
151
152 #define OSI_AUI_PWR 0x40
153 #define OSI_LAN_PWRDOWN 0x02
154 #define OSI_MODEM_PWRDOWN 0x01
155 #define OSI_LAN_RESET 0x02
156 #define OSI_MODEM_RESET 0x01
157
158 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
159 #define BANK_SELECT 14 /* Window select register. */
160 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
161
162 /* Bank 0 registers. */
163 #define TCR 0 /* transmit control register */
164 #define TCR_CLEAR 0 /* do NOTHING */
165 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
166 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
167 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
168 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
169 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
170
171 #define EPH 2 /* Ethernet Protocol Handler report. */
172 #define EPH_TX_SUC 0x0001
173 #define EPH_SNGLCOL 0x0002
174 #define EPH_MULCOL 0x0004
175 #define EPH_LTX_MULT 0x0008
176 #define EPH_16COL 0x0010
177 #define EPH_SQET 0x0020
178 #define EPH_LTX_BRD 0x0040
179 #define EPH_TX_DEFR 0x0080
180 #define EPH_LAT_COL 0x0200
181 #define EPH_LOST_CAR 0x0400
182 #define EPH_EXC_DEF 0x0800
183 #define EPH_CTR_ROL 0x1000
184 #define EPH_RX_OVRN 0x2000
185 #define EPH_LINK_OK 0x4000
186 #define EPH_TX_UNRN 0x8000
187 #define MEMINFO 8 /* Memory Information Register */
188 #define MEMCFG 10 /* Memory Configuration Register */
189
190 /* Bank 1 registers. */
191 #define CONFIG 0
192 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
193 #define CFG_NO_WAIT 0x1000
194 #define CFG_FULL_STEP 0x0400
195 #define CFG_SET_SQLCH 0x0200
196 #define CFG_AUI_SELECT 0x0100
197 #define CFG_16BIT 0x0080
198 #define CFG_DIS_LINK 0x0040
199 #define CFG_STATIC 0x0030
200 #define CFG_IRQ_SEL_1 0x0004
201 #define CFG_IRQ_SEL_0 0x0002
202 #define BASE_ADDR 2
203 #define ADDR0 4
204 #define GENERAL 10
205 #define CONTROL 12
206 #define CTL_STORE 0x0001
207 #define CTL_RELOAD 0x0002
208 #define CTL_EE_SELECT 0x0004
209 #define CTL_TE_ENABLE 0x0020
210 #define CTL_CR_ENABLE 0x0040
211 #define CTL_LE_ENABLE 0x0080
212 #define CTL_AUTO_RELEASE 0x0800
213 #define CTL_POWERDOWN 0x2000
214
215 /* Bank 2 registers. */
216 #define MMU_CMD 0
217 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
218 #define MC_RESET 0x40
219 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
220 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
221 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
222 #define PNR_ARR 2
223 #define FIFO_PORTS 4
224 #define FP_RXEMPTY 0x8000
225 #define POINTER 6
226 #define PTR_AUTO_INC 0x0040
227 #define PTR_READ 0x2000
228 #define PTR_AUTOINC 0x4000
229 #define PTR_RCV 0x8000
230 #define DATA_1 8
231 #define INTERRUPT 12
232 #define IM_RCV_INT 0x1
233 #define IM_TX_INT 0x2
234 #define IM_TX_EMPTY_INT 0x4
235 #define IM_ALLOC_INT 0x8
236 #define IM_RX_OVRN_INT 0x10
237 #define IM_EPH_INT 0x20
238
239 #define RCR 4
240 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
241 RxEnable = 0x0100, RxStripCRC = 0x0200};
242 #define RCR_SOFTRESET 0x8000 /* resets the chip */
243 #define RCR_STRIP_CRC 0x200 /* strips CRC */
244 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
245 #define RCR_ALMUL 0x4 /* receive all multicast packets */
246 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
247
248 /* the normal settings for the RCR register : */
249 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
250 #define RCR_CLEAR 0x0 /* set it to a base state */
251 #define COUNTER 6
252
253 /* BANK 3 -- not the same values as in smc9194! */
254 #define MULTICAST0 0
255 #define MULTICAST2 2
256 #define MULTICAST4 4
257 #define MULTICAST6 6
258 #define MGMT 8
259 #define REVISION 0x0a
260
261 /* Transmit status bits. */
262 #define TS_SUCCESS 0x0001
263 #define TS_16COL 0x0010
264 #define TS_LATCOL 0x0200
265 #define TS_LOSTCAR 0x0400
266
267 /* Receive status bits. */
268 #define RS_ALGNERR 0x8000
269 #define RS_BADCRC 0x2000
270 #define RS_ODDFRAME 0x1000
271 #define RS_TOOLONG 0x0800
272 #define RS_TOOSHORT 0x0400
273 #define RS_MULTICAST 0x0001
274 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
275
276 #define set_bits(v, p) outw(inw(p)|(v), (p))
277 #define mask_bits(v, p) outw(inw(p)&(v), (p))
278
279 /*====================================================================*/
280
281 static void smc91c92_detach(struct pcmcia_device *p_dev);
282 static int smc91c92_config(struct pcmcia_device *link);
283 static void smc91c92_release(struct pcmcia_device *link);
284
285 static int smc_open(struct net_device *dev);
286 static int smc_close(struct net_device *dev);
287 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
288 static void smc_tx_timeout(struct net_device *dev);
289 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev);
290 static irqreturn_t smc_interrupt(int irq, void *dev_id);
291 static void smc_rx(struct net_device *dev);
292 static struct net_device_stats *smc_get_stats(struct net_device *dev);
293 static void set_rx_mode(struct net_device *dev);
294 static int s9k_config(struct net_device *dev, struct ifmap *map);
295 static void smc_set_xcvr(struct net_device *dev, int if_port);
296 static void smc_reset(struct net_device *dev);
297 static void media_check(u_long arg);
298 static void mdio_sync(unsigned int addr);
299 static int mdio_read(struct net_device *dev, int phy_id, int loc);
300 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
301 static int smc_link_ok(struct net_device *dev);
302 static const struct ethtool_ops ethtool_ops;
303
304 /*======================================================================
305
306 smc91c92_attach() creates an "instance" of the driver, allocating
307 local data structures for one device. The device is registered
308 with Card Services.
309
310 ======================================================================*/
311
smc91c92_probe(struct pcmcia_device * link)312 static int smc91c92_probe(struct pcmcia_device *link)
313 {
314 struct smc_private *smc;
315 struct net_device *dev;
316
317 DEBUG(0, "smc91c92_attach()\n");
318
319 /* Create new ethernet device */
320 dev = alloc_etherdev(sizeof(struct smc_private));
321 if (!dev)
322 return -ENOMEM;
323 smc = netdev_priv(dev);
324 smc->p_dev = link;
325 link->priv = dev;
326
327 spin_lock_init(&smc->lock);
328 link->io.NumPorts1 = 16;
329 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
330 link->io.IOAddrLines = 4;
331 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_HANDLE_PRESENT;
332 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
333 link->irq.Handler = &smc_interrupt;
334 link->irq.Instance = dev;
335 link->conf.Attributes = CONF_ENABLE_IRQ;
336 link->conf.IntType = INT_MEMORY_AND_IO;
337
338 /* The SMC91c92-specific entries in the device structure. */
339 dev->hard_start_xmit = &smc_start_xmit;
340 dev->get_stats = &smc_get_stats;
341 dev->set_config = &s9k_config;
342 dev->set_multicast_list = &set_rx_mode;
343 dev->open = &smc_open;
344 dev->stop = &smc_close;
345 dev->do_ioctl = &smc_ioctl;
346 SET_ETHTOOL_OPS(dev, ðtool_ops);
347 #ifdef HAVE_TX_TIMEOUT
348 dev->tx_timeout = smc_tx_timeout;
349 dev->watchdog_timeo = TX_TIMEOUT;
350 #endif
351
352 smc->mii_if.dev = dev;
353 smc->mii_if.mdio_read = mdio_read;
354 smc->mii_if.mdio_write = mdio_write;
355 smc->mii_if.phy_id_mask = 0x1f;
356 smc->mii_if.reg_num_mask = 0x1f;
357
358 return smc91c92_config(link);
359 } /* smc91c92_attach */
360
361 /*======================================================================
362
363 This deletes a driver "instance". The device is de-registered
364 with Card Services. If it has been released, all local data
365 structures are freed. Otherwise, the structures will be freed
366 when the device is released.
367
368 ======================================================================*/
369
smc91c92_detach(struct pcmcia_device * link)370 static void smc91c92_detach(struct pcmcia_device *link)
371 {
372 struct net_device *dev = link->priv;
373
374 DEBUG(0, "smc91c92_detach(0x%p)\n", link);
375
376 if (link->dev_node)
377 unregister_netdev(dev);
378
379 smc91c92_release(link);
380
381 free_netdev(dev);
382 } /* smc91c92_detach */
383
384 /*====================================================================*/
385
cvt_ascii_address(struct net_device * dev,char * s)386 static int cvt_ascii_address(struct net_device *dev, char *s)
387 {
388 int i, j, da, c;
389
390 if (strlen(s) != 12)
391 return -1;
392 for (i = 0; i < 6; i++) {
393 da = 0;
394 for (j = 0; j < 2; j++) {
395 c = *s++;
396 da <<= 4;
397 da += ((c >= '0') && (c <= '9')) ?
398 (c - '0') : ((c & 0x0f) + 9);
399 }
400 dev->dev_addr[i] = da;
401 }
402 return 0;
403 }
404
405 /*====================================================================*/
406
first_tuple(struct pcmcia_device * handle,tuple_t * tuple,cisparse_t * parse)407 static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple,
408 cisparse_t *parse)
409 {
410 int i;
411
412 i = pcmcia_get_first_tuple(handle, tuple);
413 if (i != 0)
414 return i;
415 i = pcmcia_get_tuple_data(handle, tuple);
416 if (i != 0)
417 return i;
418 return pcmcia_parse_tuple(tuple, parse);
419 }
420
next_tuple(struct pcmcia_device * handle,tuple_t * tuple,cisparse_t * parse)421 static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple,
422 cisparse_t *parse)
423 {
424 int i;
425
426 if ((i = pcmcia_get_next_tuple(handle, tuple)) != 0 ||
427 (i = pcmcia_get_tuple_data(handle, tuple)) != 0)
428 return i;
429 return pcmcia_parse_tuple(tuple, parse);
430 }
431
432 /*======================================================================
433
434 Configuration stuff for Megahertz cards
435
436 mhz_3288_power() is used to power up a 3288's ethernet chip.
437 mhz_mfc_config() handles socket setup for multifunction (1144
438 and 3288) cards. mhz_setup() gets a card's hardware ethernet
439 address.
440
441 ======================================================================*/
442
mhz_3288_power(struct pcmcia_device * link)443 static int mhz_3288_power(struct pcmcia_device *link)
444 {
445 struct net_device *dev = link->priv;
446 struct smc_private *smc = netdev_priv(dev);
447 u_char tmp;
448
449 /* Read the ISR twice... */
450 readb(smc->base+MEGAHERTZ_ISR);
451 udelay(5);
452 readb(smc->base+MEGAHERTZ_ISR);
453
454 /* Pause 200ms... */
455 mdelay(200);
456
457 /* Now read and write the COR... */
458 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
459 udelay(5);
460 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
461
462 return 0;
463 }
464
mhz_mfc_config_check(struct pcmcia_device * p_dev,cistpl_cftable_entry_t * cf,cistpl_cftable_entry_t * dflt,unsigned int vcc,void * priv_data)465 static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
466 cistpl_cftable_entry_t *cf,
467 cistpl_cftable_entry_t *dflt,
468 unsigned int vcc,
469 void *priv_data)
470 {
471 int k;
472 p_dev->io.BasePort2 = cf->io.win[0].base;
473 for (k = 0; k < 0x400; k += 0x10) {
474 if (k & 0x80)
475 continue;
476 p_dev->io.BasePort1 = k ^ 0x300;
477 if (!pcmcia_request_io(p_dev, &p_dev->io))
478 return 0;
479 }
480 return -ENODEV;
481 }
482
mhz_mfc_config(struct pcmcia_device * link)483 static int mhz_mfc_config(struct pcmcia_device *link)
484 {
485 struct net_device *dev = link->priv;
486 struct smc_private *smc = netdev_priv(dev);
487 struct smc_cfg_mem *cfg_mem;
488 win_req_t req;
489 memreq_t mem;
490 int i;
491
492 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
493 if (!cfg_mem)
494 return -ENOMEM;
495
496 link->conf.Attributes |= CONF_ENABLE_SPKR;
497 link->conf.Status = CCSR_AUDIO_ENA;
498 link->irq.Attributes =
499 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
500 link->io.IOAddrLines = 16;
501 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
502 link->io.NumPorts2 = 8;
503
504 /* The Megahertz combo cards have modem-like CIS entries, so
505 we have to explicitly try a bunch of port combinations. */
506 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL))
507 goto free_cfg_mem;
508 dev->base_addr = link->io.BasePort1;
509
510 /* Allocate a memory window, for accessing the ISR */
511 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
512 req.Base = req.Size = 0;
513 req.AccessSpeed = 0;
514 i = pcmcia_request_window(&link, &req, &link->win);
515 if (i != 0)
516 goto free_cfg_mem;
517 smc->base = ioremap(req.Base, req.Size);
518 mem.CardOffset = mem.Page = 0;
519 if (smc->manfid == MANFID_MOTOROLA)
520 mem.CardOffset = link->conf.ConfigBase;
521 i = pcmcia_map_mem_page(link->win, &mem);
522
523 if ((i == 0)
524 && (smc->manfid == MANFID_MEGAHERTZ)
525 && (smc->cardid == PRODID_MEGAHERTZ_EM3288))
526 mhz_3288_power(link);
527
528 free_cfg_mem:
529 kfree(cfg_mem);
530 return -ENODEV;
531 }
532
mhz_setup(struct pcmcia_device * link)533 static int mhz_setup(struct pcmcia_device *link)
534 {
535 struct net_device *dev = link->priv;
536 struct smc_cfg_mem *cfg_mem;
537 tuple_t *tuple;
538 cisparse_t *parse;
539 u_char *buf, *station_addr;
540 int rc;
541
542 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
543 if (!cfg_mem)
544 return -1;
545
546 tuple = &cfg_mem->tuple;
547 parse = &cfg_mem->parse;
548 buf = cfg_mem->buf;
549
550 tuple->Attributes = tuple->TupleOffset = 0;
551 tuple->TupleData = (cisdata_t *)buf;
552 tuple->TupleDataMax = 255;
553
554 /* Read the station address from the CIS. It is stored as the last
555 (fourth) string in the Version 1 Version/ID tuple. */
556 tuple->DesiredTuple = CISTPL_VERS_1;
557 if (first_tuple(link, tuple, parse) != 0) {
558 rc = -1;
559 goto free_cfg_mem;
560 }
561 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
562 if (next_tuple(link, tuple, parse) != 0)
563 first_tuple(link, tuple, parse);
564 if (parse->version_1.ns > 3) {
565 station_addr = parse->version_1.str + parse->version_1.ofs[3];
566 if (cvt_ascii_address(dev, station_addr) == 0) {
567 rc = 0;
568 goto free_cfg_mem;
569 }
570 }
571
572 /* Another possibility: for the EM3288, in a special tuple */
573 tuple->DesiredTuple = 0x81;
574 if (pcmcia_get_first_tuple(link, tuple) != 0) {
575 rc = -1;
576 goto free_cfg_mem;
577 }
578 if (pcmcia_get_tuple_data(link, tuple) != 0) {
579 rc = -1;
580 goto free_cfg_mem;
581 }
582 buf[12] = '\0';
583 if (cvt_ascii_address(dev, buf) == 0) {
584 rc = 0;
585 goto free_cfg_mem;
586 }
587 rc = -1;
588 free_cfg_mem:
589 kfree(cfg_mem);
590 return rc;
591 }
592
593 /*======================================================================
594
595 Configuration stuff for the Motorola Mariner
596
597 mot_config() writes directly to the Mariner configuration
598 registers because the CIS is just bogus.
599
600 ======================================================================*/
601
mot_config(struct pcmcia_device * link)602 static void mot_config(struct pcmcia_device *link)
603 {
604 struct net_device *dev = link->priv;
605 struct smc_private *smc = netdev_priv(dev);
606 unsigned int ioaddr = dev->base_addr;
607 unsigned int iouart = link->io.BasePort2;
608
609 /* Set UART base address and force map with COR bit 1 */
610 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
611 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
612 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
613
614 /* Set SMC base address and force map with COR bit 1 */
615 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
616 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
617 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
618
619 /* Wait for things to settle down */
620 mdelay(100);
621 }
622
mot_setup(struct pcmcia_device * link)623 static int mot_setup(struct pcmcia_device *link)
624 {
625 struct net_device *dev = link->priv;
626 unsigned int ioaddr = dev->base_addr;
627 int i, wait, loop;
628 u_int addr;
629
630 /* Read Ethernet address from Serial EEPROM */
631
632 for (i = 0; i < 3; i++) {
633 SMC_SELECT_BANK(2);
634 outw(MOT_EEPROM + i, ioaddr + POINTER);
635 SMC_SELECT_BANK(1);
636 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
637
638 for (loop = wait = 0; loop < 200; loop++) {
639 udelay(10);
640 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
641 if (wait == 0) break;
642 }
643
644 if (wait)
645 return -1;
646
647 addr = inw(ioaddr + GENERAL);
648 dev->dev_addr[2*i] = addr & 0xff;
649 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
650 }
651
652 return 0;
653 }
654
655 /*====================================================================*/
656
smc_configcheck(struct pcmcia_device * p_dev,cistpl_cftable_entry_t * cf,cistpl_cftable_entry_t * dflt,unsigned int vcc,void * priv_data)657 static int smc_configcheck(struct pcmcia_device *p_dev,
658 cistpl_cftable_entry_t *cf,
659 cistpl_cftable_entry_t *dflt,
660 unsigned int vcc,
661 void *priv_data)
662 {
663 p_dev->io.BasePort1 = cf->io.win[0].base;
664 p_dev->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
665 return pcmcia_request_io(p_dev, &p_dev->io);
666 }
667
smc_config(struct pcmcia_device * link)668 static int smc_config(struct pcmcia_device *link)
669 {
670 struct net_device *dev = link->priv;
671 int i;
672
673 link->io.NumPorts1 = 16;
674 i = pcmcia_loop_config(link, smc_configcheck, NULL);
675 if (!i)
676 dev->base_addr = link->io.BasePort1;
677
678 return i;
679 }
680
smc_setup(struct pcmcia_device * link)681 static int smc_setup(struct pcmcia_device *link)
682 {
683 struct net_device *dev = link->priv;
684 struct smc_cfg_mem *cfg_mem;
685 tuple_t *tuple;
686 cisparse_t *parse;
687 cistpl_lan_node_id_t *node_id;
688 u_char *buf, *station_addr;
689 int i, rc;
690
691 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
692 if (!cfg_mem)
693 return -ENOMEM;
694
695 tuple = &cfg_mem->tuple;
696 parse = &cfg_mem->parse;
697 buf = cfg_mem->buf;
698
699 tuple->Attributes = tuple->TupleOffset = 0;
700 tuple->TupleData = (cisdata_t *)buf;
701 tuple->TupleDataMax = 255;
702
703 /* Check for a LAN function extension tuple */
704 tuple->DesiredTuple = CISTPL_FUNCE;
705 i = first_tuple(link, tuple, parse);
706 while (i == 0) {
707 if (parse->funce.type == CISTPL_FUNCE_LAN_NODE_ID)
708 break;
709 i = next_tuple(link, tuple, parse);
710 }
711 if (i == 0) {
712 node_id = (cistpl_lan_node_id_t *)parse->funce.data;
713 if (node_id->nb == 6) {
714 for (i = 0; i < 6; i++)
715 dev->dev_addr[i] = node_id->id[i];
716 rc = 0;
717 goto free_cfg_mem;
718 }
719 }
720 /* Try the third string in the Version 1 Version/ID tuple. */
721 if (link->prod_id[2]) {
722 station_addr = link->prod_id[2];
723 if (cvt_ascii_address(dev, station_addr) == 0) {
724 rc = 0;
725 goto free_cfg_mem;
726 }
727 }
728
729 rc = -1;
730 free_cfg_mem:
731 kfree(cfg_mem);
732 return rc;
733 }
734
735 /*====================================================================*/
736
osi_config(struct pcmcia_device * link)737 static int osi_config(struct pcmcia_device *link)
738 {
739 struct net_device *dev = link->priv;
740 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
741 int i, j;
742
743 link->conf.Attributes |= CONF_ENABLE_SPKR;
744 link->conf.Status = CCSR_AUDIO_ENA;
745 link->irq.Attributes =
746 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
747 link->io.NumPorts1 = 64;
748 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
749 link->io.NumPorts2 = 8;
750 link->io.IOAddrLines = 16;
751
752 /* Enable Hard Decode, LAN, Modem */
753 link->conf.ConfigIndex = 0x23;
754
755 for (i = j = 0; j < 4; j++) {
756 link->io.BasePort2 = com[j];
757 i = pcmcia_request_io(link, &link->io);
758 if (i == 0)
759 break;
760 }
761 if (i != 0) {
762 /* Fallback: turn off hard decode */
763 link->conf.ConfigIndex = 0x03;
764 link->io.NumPorts2 = 0;
765 i = pcmcia_request_io(link, &link->io);
766 }
767 dev->base_addr = link->io.BasePort1 + 0x10;
768 return i;
769 }
770
osi_setup(struct pcmcia_device * link,u_short manfid,u_short cardid)771 static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid)
772 {
773 struct net_device *dev = link->priv;
774 struct smc_cfg_mem *cfg_mem;
775 tuple_t *tuple;
776 u_char *buf;
777 int i, rc;
778
779 cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
780 if (!cfg_mem)
781 return -1;
782
783 tuple = &cfg_mem->tuple;
784 buf = cfg_mem->buf;
785
786 tuple->Attributes = TUPLE_RETURN_COMMON;
787 tuple->TupleData = (cisdata_t *)buf;
788 tuple->TupleDataMax = 255;
789 tuple->TupleOffset = 0;
790
791 /* Read the station address from tuple 0x90, subtuple 0x04 */
792 tuple->DesiredTuple = 0x90;
793 i = pcmcia_get_first_tuple(link, tuple);
794 while (i == 0) {
795 i = pcmcia_get_tuple_data(link, tuple);
796 if ((i != 0) || (buf[0] == 0x04))
797 break;
798 i = pcmcia_get_next_tuple(link, tuple);
799 }
800 if (i != 0) {
801 rc = -1;
802 goto free_cfg_mem;
803 }
804 for (i = 0; i < 6; i++)
805 dev->dev_addr[i] = buf[i+2];
806
807 if (((manfid == MANFID_OSITECH) &&
808 (cardid == PRODID_OSITECH_SEVEN)) ||
809 ((manfid == MANFID_PSION) &&
810 (cardid == PRODID_PSION_NET100))) {
811 /* Download the Seven of Diamonds firmware */
812 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
813 outb(__Xilinx7OD[i], link->io.BasePort1+2);
814 udelay(50);
815 }
816 } else if (manfid == MANFID_OSITECH) {
817 /* Make sure both functions are powered up */
818 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
819 /* Now, turn on the interrupt for both card functions */
820 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
821 DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
822 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
823 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
824 }
825 rc = 0;
826 free_cfg_mem:
827 kfree(cfg_mem);
828 return rc;
829 }
830
smc91c92_suspend(struct pcmcia_device * link)831 static int smc91c92_suspend(struct pcmcia_device *link)
832 {
833 struct net_device *dev = link->priv;
834
835 if (link->open)
836 netif_device_detach(dev);
837
838 return 0;
839 }
840
smc91c92_resume(struct pcmcia_device * link)841 static int smc91c92_resume(struct pcmcia_device *link)
842 {
843 struct net_device *dev = link->priv;
844 struct smc_private *smc = netdev_priv(dev);
845 int i;
846
847 if ((smc->manfid == MANFID_MEGAHERTZ) &&
848 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
849 mhz_3288_power(link);
850 if (smc->manfid == MANFID_MOTOROLA)
851 mot_config(link);
852 if ((smc->manfid == MANFID_OSITECH) &&
853 (smc->cardid != PRODID_OSITECH_SEVEN)) {
854 /* Power up the card and enable interrupts */
855 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
856 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
857 }
858 if (((smc->manfid == MANFID_OSITECH) &&
859 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
860 ((smc->manfid == MANFID_PSION) &&
861 (smc->cardid == PRODID_PSION_NET100))) {
862 /* Download the Seven of Diamonds firmware */
863 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
864 outb(__Xilinx7OD[i], link->io.BasePort1+2);
865 udelay(50);
866 }
867 }
868 if (link->open) {
869 smc_reset(dev);
870 netif_device_attach(dev);
871 }
872
873 return 0;
874 }
875
876
877 /*======================================================================
878
879 This verifies that the chip is some SMC91cXX variant, and returns
880 the revision code if successful. Otherwise, it returns -ENODEV.
881
882 ======================================================================*/
883
check_sig(struct pcmcia_device * link)884 static int check_sig(struct pcmcia_device *link)
885 {
886 struct net_device *dev = link->priv;
887 unsigned int ioaddr = dev->base_addr;
888 int width;
889 u_short s;
890
891 SMC_SELECT_BANK(1);
892 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
893 /* Try powering up the chip */
894 outw(0, ioaddr + CONTROL);
895 mdelay(55);
896 }
897
898 /* Try setting bus width */
899 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
900 s = inb(ioaddr + CONFIG);
901 if (width)
902 s |= CFG_16BIT;
903 else
904 s &= ~CFG_16BIT;
905 outb(s, ioaddr + CONFIG);
906
907 /* Check Base Address Register to make sure bus width is OK */
908 s = inw(ioaddr + BASE_ADDR);
909 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
910 ((s >> 8) != (s & 0xff))) {
911 SMC_SELECT_BANK(3);
912 s = inw(ioaddr + REVISION);
913 return (s & 0xff);
914 }
915
916 if (width) {
917 modconf_t mod = {
918 .Attributes = CONF_IO_CHANGE_WIDTH,
919 };
920 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
921
922 smc91c92_suspend(link);
923 pcmcia_modify_configuration(link, &mod);
924 smc91c92_resume(link);
925 return check_sig(link);
926 }
927 return -ENODEV;
928 }
929
930 /*======================================================================
931
932 smc91c92_config() is scheduled to run after a CARD_INSERTION event
933 is received, to configure the PCMCIA socket, and to make the
934 ethernet device available to the system.
935
936 ======================================================================*/
937
938 #define CS_EXIT_TEST(ret, svc, label) \
939 if (ret != 0) { \
940 cs_error(link, svc, ret); \
941 goto label; \
942 }
943
smc91c92_config(struct pcmcia_device * link)944 static int smc91c92_config(struct pcmcia_device *link)
945 {
946 struct net_device *dev = link->priv;
947 struct smc_private *smc = netdev_priv(dev);
948 char *name;
949 int i, j, rev;
950 unsigned int ioaddr;
951 u_long mir;
952
953 DEBUG(0, "smc91c92_config(0x%p)\n", link);
954
955 smc->manfid = link->manf_id;
956 smc->cardid = link->card_id;
957
958 if ((smc->manfid == MANFID_OSITECH) &&
959 (smc->cardid != PRODID_OSITECH_SEVEN)) {
960 i = osi_config(link);
961 } else if ((smc->manfid == MANFID_MOTOROLA) ||
962 ((smc->manfid == MANFID_MEGAHERTZ) &&
963 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
964 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
965 i = mhz_mfc_config(link);
966 } else {
967 i = smc_config(link);
968 }
969 CS_EXIT_TEST(i, RequestIO, config_failed);
970
971 i = pcmcia_request_irq(link, &link->irq);
972 CS_EXIT_TEST(i, RequestIRQ, config_failed);
973 i = pcmcia_request_configuration(link, &link->conf);
974 CS_EXIT_TEST(i, RequestConfiguration, config_failed);
975
976 if (smc->manfid == MANFID_MOTOROLA)
977 mot_config(link);
978
979 dev->irq = link->irq.AssignedIRQ;
980
981 if ((if_port >= 0) && (if_port <= 2))
982 dev->if_port = if_port;
983 else
984 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
985
986 switch (smc->manfid) {
987 case MANFID_OSITECH:
988 case MANFID_PSION:
989 i = osi_setup(link, smc->manfid, smc->cardid); break;
990 case MANFID_SMC:
991 case MANFID_NEW_MEDIA:
992 i = smc_setup(link); break;
993 case 0x128: /* For broken Megahertz cards */
994 case MANFID_MEGAHERTZ:
995 i = mhz_setup(link); break;
996 case MANFID_MOTOROLA:
997 default: /* get the hw address from EEPROM */
998 i = mot_setup(link); break;
999 }
1000
1001 if (i != 0) {
1002 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
1003 goto config_undo;
1004 }
1005
1006 smc->duplex = 0;
1007 smc->rx_ovrn = 0;
1008
1009 rev = check_sig(link);
1010 name = "???";
1011 if (rev > 0)
1012 switch (rev >> 4) {
1013 case 3: name = "92"; break;
1014 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
1015 case 5: name = "95"; break;
1016 case 7: name = "100"; break;
1017 case 8: name = "100-FD"; break;
1018 case 9: name = "110"; break;
1019 }
1020
1021 ioaddr = dev->base_addr;
1022 if (rev > 0) {
1023 u_long mcr;
1024 SMC_SELECT_BANK(0);
1025 mir = inw(ioaddr + MEMINFO) & 0xff;
1026 if (mir == 0xff) mir++;
1027 /* Get scale factor for memory size */
1028 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
1029 mir *= 128 * (1<<((mcr >> 9) & 7));
1030 SMC_SELECT_BANK(1);
1031 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
1032 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
1033 if (smc->manfid == MANFID_OSITECH)
1034 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
1035 if ((rev >> 4) >= 7)
1036 smc->cfg |= CFG_MII_SELECT;
1037 } else
1038 mir = 0;
1039
1040 if (smc->cfg & CFG_MII_SELECT) {
1041 SMC_SELECT_BANK(3);
1042
1043 for (i = 0; i < 32; i++) {
1044 j = mdio_read(dev, i, 1);
1045 if ((j != 0) && (j != 0xffff)) break;
1046 }
1047 smc->mii_if.phy_id = (i < 32) ? i : -1;
1048
1049 SMC_SELECT_BANK(0);
1050 }
1051
1052 link->dev_node = &smc->node;
1053 SET_NETDEV_DEV(dev, &handle_to_dev(link));
1054
1055 if (register_netdev(dev) != 0) {
1056 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
1057 link->dev_node = NULL;
1058 goto config_undo;
1059 }
1060
1061 strcpy(smc->node.dev_name, dev->name);
1062
1063 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
1064 "hw_addr %pM\n",
1065 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq,
1066 dev->dev_addr);
1067
1068 if (rev > 0) {
1069 if (mir & 0x3ff)
1070 printk(KERN_INFO " %lu byte", mir);
1071 else
1072 printk(KERN_INFO " %lu kb", mir>>10);
1073 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
1074 "MII" : if_names[dev->if_port]);
1075 }
1076
1077 if (smc->cfg & CFG_MII_SELECT) {
1078 if (smc->mii_if.phy_id != -1) {
1079 DEBUG(0, " MII transceiver at index %d, status %x.\n",
1080 smc->mii_if.phy_id, j);
1081 } else {
1082 printk(KERN_NOTICE " No MII transceivers found!\n");
1083 }
1084 }
1085 return 0;
1086
1087 config_undo:
1088 unregister_netdev(dev);
1089 config_failed: /* CS_EXIT_TEST() calls jump to here... */
1090 smc91c92_release(link);
1091 return -ENODEV;
1092 } /* smc91c92_config */
1093
1094 /*======================================================================
1095
1096 After a card is removed, smc91c92_release() will unregister the net
1097 device, and release the PCMCIA configuration. If the device is
1098 still open, this will be postponed until it is closed.
1099
1100 ======================================================================*/
1101
smc91c92_release(struct pcmcia_device * link)1102 static void smc91c92_release(struct pcmcia_device *link)
1103 {
1104 DEBUG(0, "smc91c92_release(0x%p)\n", link);
1105 if (link->win) {
1106 struct net_device *dev = link->priv;
1107 struct smc_private *smc = netdev_priv(dev);
1108 iounmap(smc->base);
1109 }
1110 pcmcia_disable_device(link);
1111 }
1112
1113 /*======================================================================
1114
1115 MII interface support for SMC91cXX based cards
1116 ======================================================================*/
1117
1118 #define MDIO_SHIFT_CLK 0x04
1119 #define MDIO_DATA_OUT 0x01
1120 #define MDIO_DIR_WRITE 0x08
1121 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1122 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1123 #define MDIO_DATA_READ 0x02
1124
mdio_sync(unsigned int addr)1125 static void mdio_sync(unsigned int addr)
1126 {
1127 int bits;
1128 for (bits = 0; bits < 32; bits++) {
1129 outb(MDIO_DATA_WRITE1, addr);
1130 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1131 }
1132 }
1133
mdio_read(struct net_device * dev,int phy_id,int loc)1134 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1135 {
1136 unsigned int addr = dev->base_addr + MGMT;
1137 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1138 int i, retval = 0;
1139
1140 mdio_sync(addr);
1141 for (i = 13; i >= 0; i--) {
1142 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1143 outb(dat, addr);
1144 outb(dat | MDIO_SHIFT_CLK, addr);
1145 }
1146 for (i = 19; i > 0; i--) {
1147 outb(0, addr);
1148 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1149 outb(MDIO_SHIFT_CLK, addr);
1150 }
1151 return (retval>>1) & 0xffff;
1152 }
1153
mdio_write(struct net_device * dev,int phy_id,int loc,int value)1154 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1155 {
1156 unsigned int addr = dev->base_addr + MGMT;
1157 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1158 int i;
1159
1160 mdio_sync(addr);
1161 for (i = 31; i >= 0; i--) {
1162 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1163 outb(dat, addr);
1164 outb(dat | MDIO_SHIFT_CLK, addr);
1165 }
1166 for (i = 1; i >= 0; i--) {
1167 outb(0, addr);
1168 outb(MDIO_SHIFT_CLK, addr);
1169 }
1170 }
1171
1172 /*======================================================================
1173
1174 The driver core code, most of which should be common with a
1175 non-PCMCIA implementation.
1176
1177 ======================================================================*/
1178
1179 #ifdef PCMCIA_DEBUG
smc_dump(struct net_device * dev)1180 static void smc_dump(struct net_device *dev)
1181 {
1182 unsigned int ioaddr = dev->base_addr;
1183 u_short i, w, save;
1184 save = inw(ioaddr + BANK_SELECT);
1185 for (w = 0; w < 4; w++) {
1186 SMC_SELECT_BANK(w);
1187 printk(KERN_DEBUG "bank %d: ", w);
1188 for (i = 0; i < 14; i += 2)
1189 printk(" %04x", inw(ioaddr + i));
1190 printk("\n");
1191 }
1192 outw(save, ioaddr + BANK_SELECT);
1193 }
1194 #endif
1195
smc_open(struct net_device * dev)1196 static int smc_open(struct net_device *dev)
1197 {
1198 struct smc_private *smc = netdev_priv(dev);
1199 struct pcmcia_device *link = smc->p_dev;
1200
1201 #ifdef PCMCIA_DEBUG
1202 DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
1203 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1204 if (pc_debug > 1) smc_dump(dev);
1205 #endif
1206
1207 /* Check that the PCMCIA card is still here. */
1208 if (!pcmcia_dev_present(link))
1209 return -ENODEV;
1210 /* Physical device present signature. */
1211 if (check_sig(link) < 0) {
1212 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1213 return -ENODEV;
1214 }
1215 link->open++;
1216
1217 netif_start_queue(dev);
1218 smc->saved_skb = NULL;
1219 smc->packets_waiting = 0;
1220
1221 smc_reset(dev);
1222 init_timer(&smc->media);
1223 smc->media.function = &media_check;
1224 smc->media.data = (u_long) dev;
1225 smc->media.expires = jiffies + HZ;
1226 add_timer(&smc->media);
1227
1228 return 0;
1229 } /* smc_open */
1230
1231 /*====================================================================*/
1232
smc_close(struct net_device * dev)1233 static int smc_close(struct net_device *dev)
1234 {
1235 struct smc_private *smc = netdev_priv(dev);
1236 struct pcmcia_device *link = smc->p_dev;
1237 unsigned int ioaddr = dev->base_addr;
1238
1239 DEBUG(0, "%s: smc_close(), status %4.4x.\n",
1240 dev->name, inw(ioaddr + BANK_SELECT));
1241
1242 netif_stop_queue(dev);
1243
1244 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1245 Don't bother to check for chip present. */
1246 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1247 outw(0, ioaddr + INTERRUPT);
1248 SMC_SELECT_BANK(0);
1249 mask_bits(0xff00, ioaddr + RCR);
1250 mask_bits(0xff00, ioaddr + TCR);
1251
1252 /* Put the chip into power-down mode. */
1253 SMC_SELECT_BANK(1);
1254 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1255
1256 link->open--;
1257 del_timer_sync(&smc->media);
1258
1259 return 0;
1260 } /* smc_close */
1261
1262 /*======================================================================
1263
1264 Transfer a packet to the hardware and trigger the packet send.
1265 This may be called at either from either the Tx queue code
1266 or the interrupt handler.
1267
1268 ======================================================================*/
1269
smc_hardware_send_packet(struct net_device * dev)1270 static void smc_hardware_send_packet(struct net_device * dev)
1271 {
1272 struct smc_private *smc = netdev_priv(dev);
1273 struct sk_buff *skb = smc->saved_skb;
1274 unsigned int ioaddr = dev->base_addr;
1275 u_char packet_no;
1276
1277 if (!skb) {
1278 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1279 return;
1280 }
1281
1282 /* There should be a packet slot waiting. */
1283 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1284 if (packet_no & 0x80) {
1285 /* If not, there is a hardware problem! Likely an ejected card. */
1286 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1287 " failed, status %#2.2x.\n", dev->name, packet_no);
1288 dev_kfree_skb_irq(skb);
1289 smc->saved_skb = NULL;
1290 netif_start_queue(dev);
1291 return;
1292 }
1293
1294 smc->stats.tx_bytes += skb->len;
1295 /* The card should use the just-allocated buffer. */
1296 outw(packet_no, ioaddr + PNR_ARR);
1297 /* point to the beginning of the packet */
1298 outw(PTR_AUTOINC , ioaddr + POINTER);
1299
1300 /* Send the packet length (+6 for status, length and ctl byte)
1301 and the status word (set to zeros). */
1302 {
1303 u_char *buf = skb->data;
1304 u_int length = skb->len; /* The chip will pad to ethernet min. */
1305
1306 DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
1307 dev->name, length);
1308
1309 /* send the packet length: +6 for status word, length, and ctl */
1310 outw(0, ioaddr + DATA_1);
1311 outw(length + 6, ioaddr + DATA_1);
1312 outsw(ioaddr + DATA_1, buf, length >> 1);
1313
1314 /* The odd last byte, if there is one, goes in the control word. */
1315 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1316 }
1317
1318 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1319 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1320 (inw(ioaddr + INTERRUPT) & 0xff00),
1321 ioaddr + INTERRUPT);
1322
1323 /* The chip does the rest of the work. */
1324 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1325
1326 smc->saved_skb = NULL;
1327 dev_kfree_skb_irq(skb);
1328 dev->trans_start = jiffies;
1329 netif_start_queue(dev);
1330 return;
1331 }
1332
1333 /*====================================================================*/
1334
smc_tx_timeout(struct net_device * dev)1335 static void smc_tx_timeout(struct net_device *dev)
1336 {
1337 struct smc_private *smc = netdev_priv(dev);
1338 unsigned int ioaddr = dev->base_addr;
1339
1340 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1341 "Tx_status %2.2x status %4.4x.\n",
1342 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1343 smc->stats.tx_errors++;
1344 smc_reset(dev);
1345 dev->trans_start = jiffies;
1346 smc->saved_skb = NULL;
1347 netif_wake_queue(dev);
1348 }
1349
smc_start_xmit(struct sk_buff * skb,struct net_device * dev)1350 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
1351 {
1352 struct smc_private *smc = netdev_priv(dev);
1353 unsigned int ioaddr = dev->base_addr;
1354 u_short num_pages;
1355 short time_out, ir;
1356 unsigned long flags;
1357
1358 netif_stop_queue(dev);
1359
1360 DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
1361 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1362
1363 if (smc->saved_skb) {
1364 /* THIS SHOULD NEVER HAPPEN. */
1365 smc->stats.tx_aborted_errors++;
1366 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1367 dev->name);
1368 return 1;
1369 }
1370 smc->saved_skb = skb;
1371
1372 num_pages = skb->len >> 8;
1373
1374 if (num_pages > 7) {
1375 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1376 dev_kfree_skb (skb);
1377 smc->saved_skb = NULL;
1378 smc->stats.tx_dropped++;
1379 return 0; /* Do not re-queue this packet. */
1380 }
1381 /* A packet is now waiting. */
1382 smc->packets_waiting++;
1383
1384 spin_lock_irqsave(&smc->lock, flags);
1385 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1386
1387 /* need MC_RESET to keep the memory consistent. errata? */
1388 if (smc->rx_ovrn) {
1389 outw(MC_RESET, ioaddr + MMU_CMD);
1390 smc->rx_ovrn = 0;
1391 }
1392
1393 /* Allocate the memory; send the packet now if we win. */
1394 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1395 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1396 ir = inw(ioaddr+INTERRUPT);
1397 if (ir & IM_ALLOC_INT) {
1398 /* Acknowledge the interrupt, send the packet. */
1399 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1400 smc_hardware_send_packet(dev); /* Send the packet now.. */
1401 spin_unlock_irqrestore(&smc->lock, flags);
1402 return 0;
1403 }
1404 }
1405
1406 /* Otherwise defer until the Tx-space-allocated interrupt. */
1407 DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
1408 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1409 spin_unlock_irqrestore(&smc->lock, flags);
1410
1411 return 0;
1412 }
1413
1414 /*======================================================================
1415
1416 Handle a Tx anomolous event. Entered while in Window 2.
1417
1418 ======================================================================*/
1419
smc_tx_err(struct net_device * dev)1420 static void smc_tx_err(struct net_device * dev)
1421 {
1422 struct smc_private *smc = netdev_priv(dev);
1423 unsigned int ioaddr = dev->base_addr;
1424 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1425 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1426 int tx_status;
1427
1428 /* select this as the packet to read from */
1429 outw(packet_no, ioaddr + PNR_ARR);
1430
1431 /* read the first word from this packet */
1432 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1433
1434 tx_status = inw(ioaddr + DATA_1);
1435
1436 smc->stats.tx_errors++;
1437 if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
1438 if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
1439 if (tx_status & TS_16COL) {
1440 smc->stats.tx_aborted_errors++;
1441 smc->tx_err++;
1442 }
1443
1444 if (tx_status & TS_SUCCESS) {
1445 printk(KERN_NOTICE "%s: Successful packet caused error "
1446 "interrupt?\n", dev->name);
1447 }
1448 /* re-enable transmit */
1449 SMC_SELECT_BANK(0);
1450 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1451 SMC_SELECT_BANK(2);
1452
1453 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1454
1455 /* one less packet waiting for me */
1456 smc->packets_waiting--;
1457
1458 outw(saved_packet, ioaddr + PNR_ARR);
1459 return;
1460 }
1461
1462 /*====================================================================*/
1463
smc_eph_irq(struct net_device * dev)1464 static void smc_eph_irq(struct net_device *dev)
1465 {
1466 struct smc_private *smc = netdev_priv(dev);
1467 unsigned int ioaddr = dev->base_addr;
1468 u_short card_stats, ephs;
1469
1470 SMC_SELECT_BANK(0);
1471 ephs = inw(ioaddr + EPH);
1472 DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
1473 " %4.4x.\n", dev->name, ephs);
1474 /* Could be a counter roll-over warning: update stats. */
1475 card_stats = inw(ioaddr + COUNTER);
1476 /* single collisions */
1477 smc->stats.collisions += card_stats & 0xF;
1478 card_stats >>= 4;
1479 /* multiple collisions */
1480 smc->stats.collisions += card_stats & 0xF;
1481 #if 0 /* These are for when linux supports these statistics */
1482 card_stats >>= 4; /* deferred */
1483 card_stats >>= 4; /* excess deferred */
1484 #endif
1485 /* If we had a transmit error we must re-enable the transmitter. */
1486 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1487
1488 /* Clear a link error interrupt. */
1489 SMC_SELECT_BANK(1);
1490 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1491 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1492 ioaddr + CONTROL);
1493 SMC_SELECT_BANK(2);
1494 }
1495
1496 /*====================================================================*/
1497
smc_interrupt(int irq,void * dev_id)1498 static irqreturn_t smc_interrupt(int irq, void *dev_id)
1499 {
1500 struct net_device *dev = dev_id;
1501 struct smc_private *smc = netdev_priv(dev);
1502 unsigned int ioaddr;
1503 u_short saved_bank, saved_pointer, mask, status;
1504 unsigned int handled = 1;
1505 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1506
1507 if (!netif_device_present(dev))
1508 return IRQ_NONE;
1509
1510 ioaddr = dev->base_addr;
1511
1512 DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1513 irq, ioaddr);
1514
1515 spin_lock(&smc->lock);
1516 smc->watchdog = 0;
1517 saved_bank = inw(ioaddr + BANK_SELECT);
1518 if ((saved_bank & 0xff00) != 0x3300) {
1519 /* The device does not exist -- the card could be off-line, or
1520 maybe it has been ejected. */
1521 DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
1522 "/ejected device.\n", dev->name, irq);
1523 handled = 0;
1524 goto irq_done;
1525 }
1526
1527 SMC_SELECT_BANK(2);
1528 saved_pointer = inw(ioaddr + POINTER);
1529 mask = inw(ioaddr + INTERRUPT) >> 8;
1530 /* clear all interrupts */
1531 outw(0, ioaddr + INTERRUPT);
1532
1533 do { /* read the status flag, and mask it */
1534 status = inw(ioaddr + INTERRUPT) & 0xff;
1535 DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1536 status, mask);
1537 if ((status & mask) == 0) {
1538 if (bogus_cnt == INTR_WORK)
1539 handled = 0;
1540 break;
1541 }
1542 if (status & IM_RCV_INT) {
1543 /* Got a packet(s). */
1544 smc_rx(dev);
1545 }
1546 if (status & IM_TX_INT) {
1547 smc_tx_err(dev);
1548 outw(IM_TX_INT, ioaddr + INTERRUPT);
1549 }
1550 status &= mask;
1551 if (status & IM_TX_EMPTY_INT) {
1552 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1553 mask &= ~IM_TX_EMPTY_INT;
1554 smc->stats.tx_packets += smc->packets_waiting;
1555 smc->packets_waiting = 0;
1556 }
1557 if (status & IM_ALLOC_INT) {
1558 /* Clear this interrupt so it doesn't happen again */
1559 mask &= ~IM_ALLOC_INT;
1560
1561 smc_hardware_send_packet(dev);
1562
1563 /* enable xmit interrupts based on this */
1564 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1565
1566 /* and let the card send more packets to me */
1567 netif_wake_queue(dev);
1568 }
1569 if (status & IM_RX_OVRN_INT) {
1570 smc->stats.rx_errors++;
1571 smc->stats.rx_fifo_errors++;
1572 if (smc->duplex)
1573 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1574 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1575 }
1576 if (status & IM_EPH_INT)
1577 smc_eph_irq(dev);
1578 } while (--bogus_cnt);
1579
1580 DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
1581 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1582
1583 /* restore state register */
1584 outw((mask<<8), ioaddr + INTERRUPT);
1585 outw(saved_pointer, ioaddr + POINTER);
1586 SMC_SELECT_BANK(saved_bank);
1587
1588 DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1589
1590 irq_done:
1591
1592 if ((smc->manfid == MANFID_OSITECH) &&
1593 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1594 /* Retrigger interrupt if needed */
1595 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1596 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1597 }
1598 if (smc->manfid == MANFID_MOTOROLA) {
1599 u_char cor;
1600 cor = readb(smc->base + MOT_UART + CISREG_COR);
1601 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1602 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1603 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1604 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1605 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1606 }
1607 #ifdef DOES_NOT_WORK
1608 if (smc->base != NULL) { /* Megahertz MFC's */
1609 readb(smc->base+MEGAHERTZ_ISR);
1610 readb(smc->base+MEGAHERTZ_ISR);
1611 }
1612 #endif
1613 spin_unlock(&smc->lock);
1614 return IRQ_RETVAL(handled);
1615 }
1616
1617 /*====================================================================*/
1618
smc_rx(struct net_device * dev)1619 static void smc_rx(struct net_device *dev)
1620 {
1621 struct smc_private *smc = netdev_priv(dev);
1622 unsigned int ioaddr = dev->base_addr;
1623 int rx_status;
1624 int packet_length; /* Caution: not frame length, rather words
1625 to transfer from the chip. */
1626
1627 /* Assertion: we are in Window 2. */
1628
1629 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1630 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1631 dev->name);
1632 return;
1633 }
1634
1635 /* Reset the read pointer, and read the status and packet length. */
1636 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1637 rx_status = inw(ioaddr + DATA_1);
1638 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1639
1640 DEBUG(2, "%s: Receive status %4.4x length %d.\n",
1641 dev->name, rx_status, packet_length);
1642
1643 if (!(rx_status & RS_ERRORS)) {
1644 /* do stuff to make a new packet */
1645 struct sk_buff *skb;
1646
1647 /* Note: packet_length adds 5 or 6 extra bytes here! */
1648 skb = dev_alloc_skb(packet_length+2);
1649
1650 if (skb == NULL) {
1651 DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
1652 smc->stats.rx_dropped++;
1653 outw(MC_RELEASE, ioaddr + MMU_CMD);
1654 return;
1655 }
1656
1657 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1658 skb_reserve(skb, 2);
1659 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1660 (packet_length+1)>>1);
1661 skb->protocol = eth_type_trans(skb, dev);
1662
1663 netif_rx(skb);
1664 dev->last_rx = jiffies;
1665 smc->stats.rx_packets++;
1666 smc->stats.rx_bytes += packet_length;
1667 if (rx_status & RS_MULTICAST)
1668 smc->stats.multicast++;
1669 } else {
1670 /* error ... */
1671 smc->stats.rx_errors++;
1672
1673 if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
1674 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1675 smc->stats.rx_length_errors++;
1676 if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
1677 }
1678 /* Let the MMU free the memory of this packet. */
1679 outw(MC_RELEASE, ioaddr + MMU_CMD);
1680
1681 return;
1682 }
1683
1684 /*====================================================================*/
1685
smc_get_stats(struct net_device * dev)1686 static struct net_device_stats *smc_get_stats(struct net_device *dev)
1687 {
1688 struct smc_private *smc = netdev_priv(dev);
1689 /* Nothing to update - the 91c92 is a pretty primative chip. */
1690 return &smc->stats;
1691 }
1692
1693 /*======================================================================
1694
1695 Calculate values for the hardware multicast filter hash table.
1696
1697 ======================================================================*/
1698
fill_multicast_tbl(int count,struct dev_mc_list * addrs,u_char * multicast_table)1699 static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
1700 u_char *multicast_table)
1701 {
1702 struct dev_mc_list *mc_addr;
1703
1704 for (mc_addr = addrs; mc_addr && count-- > 0; mc_addr = mc_addr->next) {
1705 u_int position = ether_crc(6, mc_addr->dmi_addr);
1706 #ifndef final_version /* Verify multicast address. */
1707 if ((mc_addr->dmi_addr[0] & 1) == 0)
1708 continue;
1709 #endif
1710 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1711 }
1712 }
1713
1714 /*======================================================================
1715
1716 Set the receive mode.
1717
1718 This routine is used by both the protocol level to notify us of
1719 promiscuous/multicast mode changes, and by the open/reset code to
1720 initialize the Rx registers. We always set the multicast list and
1721 leave the receiver running.
1722
1723 ======================================================================*/
1724
set_rx_mode(struct net_device * dev)1725 static void set_rx_mode(struct net_device *dev)
1726 {
1727 unsigned int ioaddr = dev->base_addr;
1728 struct smc_private *smc = netdev_priv(dev);
1729 u_int multicast_table[ 2 ] = { 0, };
1730 unsigned long flags;
1731 u_short rx_cfg_setting;
1732
1733 if (dev->flags & IFF_PROMISC) {
1734 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1735 } else if (dev->flags & IFF_ALLMULTI)
1736 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1737 else {
1738 if (dev->mc_count) {
1739 fill_multicast_tbl(dev->mc_count, dev->mc_list,
1740 (u_char *)multicast_table);
1741 }
1742 rx_cfg_setting = RxStripCRC | RxEnable;
1743 }
1744
1745 /* Load MC table and Rx setting into the chip without interrupts. */
1746 spin_lock_irqsave(&smc->lock, flags);
1747 SMC_SELECT_BANK(3);
1748 outl(multicast_table[0], ioaddr + MULTICAST0);
1749 outl(multicast_table[1], ioaddr + MULTICAST4);
1750 SMC_SELECT_BANK(0);
1751 outw(rx_cfg_setting, ioaddr + RCR);
1752 SMC_SELECT_BANK(2);
1753 spin_unlock_irqrestore(&smc->lock, flags);
1754
1755 return;
1756 }
1757
1758 /*======================================================================
1759
1760 Senses when a card's config changes. Here, it's coax or TP.
1761
1762 ======================================================================*/
1763
s9k_config(struct net_device * dev,struct ifmap * map)1764 static int s9k_config(struct net_device *dev, struct ifmap *map)
1765 {
1766 struct smc_private *smc = netdev_priv(dev);
1767 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1768 if (smc->cfg & CFG_MII_SELECT)
1769 return -EOPNOTSUPP;
1770 else if (map->port > 2)
1771 return -EINVAL;
1772 dev->if_port = map->port;
1773 printk(KERN_INFO "%s: switched to %s port\n",
1774 dev->name, if_names[dev->if_port]);
1775 smc_reset(dev);
1776 }
1777 return 0;
1778 }
1779
1780 /*======================================================================
1781
1782 Reset the chip, reloading every register that might be corrupted.
1783
1784 ======================================================================*/
1785
1786 /*
1787 Set transceiver type, perhaps to something other than what the user
1788 specified in dev->if_port.
1789 */
smc_set_xcvr(struct net_device * dev,int if_port)1790 static void smc_set_xcvr(struct net_device *dev, int if_port)
1791 {
1792 struct smc_private *smc = netdev_priv(dev);
1793 unsigned int ioaddr = dev->base_addr;
1794 u_short saved_bank;
1795
1796 saved_bank = inw(ioaddr + BANK_SELECT);
1797 SMC_SELECT_BANK(1);
1798 if (if_port == 2) {
1799 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1800 if ((smc->manfid == MANFID_OSITECH) &&
1801 (smc->cardid != PRODID_OSITECH_SEVEN))
1802 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1803 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1804 } else {
1805 outw(smc->cfg, ioaddr + CONFIG);
1806 if ((smc->manfid == MANFID_OSITECH) &&
1807 (smc->cardid != PRODID_OSITECH_SEVEN))
1808 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1809 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1810 }
1811 SMC_SELECT_BANK(saved_bank);
1812 }
1813
smc_reset(struct net_device * dev)1814 static void smc_reset(struct net_device *dev)
1815 {
1816 unsigned int ioaddr = dev->base_addr;
1817 struct smc_private *smc = netdev_priv(dev);
1818 int i;
1819
1820 DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
1821
1822 /* The first interaction must be a write to bring the chip out
1823 of sleep mode. */
1824 SMC_SELECT_BANK(0);
1825 /* Reset the chip. */
1826 outw(RCR_SOFTRESET, ioaddr + RCR);
1827 udelay(10);
1828
1829 /* Clear the transmit and receive configuration registers. */
1830 outw(RCR_CLEAR, ioaddr + RCR);
1831 outw(TCR_CLEAR, ioaddr + TCR);
1832
1833 /* Set the Window 1 control, configuration and station addr registers.
1834 No point in writing the I/O base register ;-> */
1835 SMC_SELECT_BANK(1);
1836 /* Automatically release successfully transmitted packets,
1837 Accept link errors, counter and Tx error interrupts. */
1838 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1839 ioaddr + CONTROL);
1840 smc_set_xcvr(dev, dev->if_port);
1841 if ((smc->manfid == MANFID_OSITECH) &&
1842 (smc->cardid != PRODID_OSITECH_SEVEN))
1843 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1844 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1845 ioaddr - 0x10 + OSITECH_AUI_PWR);
1846
1847 /* Fill in the physical address. The databook is wrong about the order! */
1848 for (i = 0; i < 6; i += 2)
1849 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1850 ioaddr + ADDR0 + i);
1851
1852 /* Reset the MMU */
1853 SMC_SELECT_BANK(2);
1854 outw(MC_RESET, ioaddr + MMU_CMD);
1855 outw(0, ioaddr + INTERRUPT);
1856
1857 /* Re-enable the chip. */
1858 SMC_SELECT_BANK(0);
1859 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1860 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1861 set_rx_mode(dev);
1862
1863 if (smc->cfg & CFG_MII_SELECT) {
1864 SMC_SELECT_BANK(3);
1865
1866 /* Reset MII */
1867 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1868
1869 /* Advertise 100F, 100H, 10F, 10H */
1870 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1871
1872 /* Restart MII autonegotiation */
1873 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1874 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1875 }
1876
1877 /* Enable interrupts. */
1878 SMC_SELECT_BANK(2);
1879 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1880 ioaddr + INTERRUPT);
1881 }
1882
1883 /*======================================================================
1884
1885 Media selection timer routine
1886
1887 ======================================================================*/
1888
media_check(u_long arg)1889 static void media_check(u_long arg)
1890 {
1891 struct net_device *dev = (struct net_device *) arg;
1892 struct smc_private *smc = netdev_priv(dev);
1893 unsigned int ioaddr = dev->base_addr;
1894 u_short i, media, saved_bank;
1895 u_short link;
1896 unsigned long flags;
1897
1898 spin_lock_irqsave(&smc->lock, flags);
1899
1900 saved_bank = inw(ioaddr + BANK_SELECT);
1901
1902 if (!netif_device_present(dev))
1903 goto reschedule;
1904
1905 SMC_SELECT_BANK(2);
1906
1907 /* need MC_RESET to keep the memory consistent. errata? */
1908 if (smc->rx_ovrn) {
1909 outw(MC_RESET, ioaddr + MMU_CMD);
1910 smc->rx_ovrn = 0;
1911 }
1912 i = inw(ioaddr + INTERRUPT);
1913 SMC_SELECT_BANK(0);
1914 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1915 SMC_SELECT_BANK(1);
1916 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1917
1918 /* Check for pending interrupt with watchdog flag set: with
1919 this, we can limp along even if the interrupt is blocked */
1920 if (smc->watchdog++ && ((i>>8) & i)) {
1921 if (!smc->fast_poll)
1922 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1923 smc_interrupt(dev->irq, dev);
1924 smc->fast_poll = HZ;
1925 }
1926 if (smc->fast_poll) {
1927 smc->fast_poll--;
1928 smc->media.expires = jiffies + HZ/100;
1929 add_timer(&smc->media);
1930 SMC_SELECT_BANK(saved_bank);
1931 spin_unlock_irqrestore(&smc->lock, flags);
1932 return;
1933 }
1934
1935 if (smc->cfg & CFG_MII_SELECT) {
1936 if (smc->mii_if.phy_id < 0)
1937 goto reschedule;
1938
1939 SMC_SELECT_BANK(3);
1940 link = mdio_read(dev, smc->mii_if.phy_id, 1);
1941 if (!link || (link == 0xffff)) {
1942 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1943 smc->mii_if.phy_id = -1;
1944 goto reschedule;
1945 }
1946
1947 link &= 0x0004;
1948 if (link != smc->link_status) {
1949 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
1950 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1951 (link) ? "found" : "lost");
1952 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
1953 ? TCR_FDUPLX : 0);
1954 if (link) {
1955 printk(KERN_INFO "%s: autonegotiation complete: "
1956 "%sbaseT-%cD selected\n", dev->name,
1957 ((p & 0x0180) ? "100" : "10"),
1958 (smc->duplex ? 'F' : 'H'));
1959 }
1960 SMC_SELECT_BANK(0);
1961 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
1962 smc->link_status = link;
1963 }
1964 goto reschedule;
1965 }
1966
1967 /* Ignore collisions unless we've had no rx's recently */
1968 if (time_after(jiffies, dev->last_rx + HZ)) {
1969 if (smc->tx_err || (smc->media_status & EPH_16COL))
1970 media |= EPH_16COL;
1971 }
1972 smc->tx_err = 0;
1973
1974 if (media != smc->media_status) {
1975 if ((media & smc->media_status & 1) &&
1976 ((smc->media_status ^ media) & EPH_LINK_OK))
1977 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1978 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
1979 else if ((media & smc->media_status & 2) &&
1980 ((smc->media_status ^ media) & EPH_16COL))
1981 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
1982 (media & EPH_16COL ? "problem" : "ok"));
1983 if (dev->if_port == 0) {
1984 if (media & 1) {
1985 if (media & EPH_LINK_OK)
1986 printk(KERN_INFO "%s: flipped to 10baseT\n",
1987 dev->name);
1988 else
1989 smc_set_xcvr(dev, 2);
1990 } else {
1991 if (media & EPH_16COL)
1992 smc_set_xcvr(dev, 1);
1993 else
1994 printk(KERN_INFO "%s: flipped to 10base2\n",
1995 dev->name);
1996 }
1997 }
1998 smc->media_status = media;
1999 }
2000
2001 reschedule:
2002 smc->media.expires = jiffies + HZ;
2003 add_timer(&smc->media);
2004 SMC_SELECT_BANK(saved_bank);
2005 spin_unlock_irqrestore(&smc->lock, flags);
2006 }
2007
smc_link_ok(struct net_device * dev)2008 static int smc_link_ok(struct net_device *dev)
2009 {
2010 unsigned int ioaddr = dev->base_addr;
2011 struct smc_private *smc = netdev_priv(dev);
2012
2013 if (smc->cfg & CFG_MII_SELECT) {
2014 return mii_link_ok(&smc->mii_if);
2015 } else {
2016 SMC_SELECT_BANK(0);
2017 return inw(ioaddr + EPH) & EPH_LINK_OK;
2018 }
2019 }
2020
smc_netdev_get_ecmd(struct net_device * dev,struct ethtool_cmd * ecmd)2021 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2022 {
2023 u16 tmp;
2024 unsigned int ioaddr = dev->base_addr;
2025
2026 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
2027 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
2028
2029 SMC_SELECT_BANK(1);
2030 tmp = inw(ioaddr + CONFIG);
2031 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
2032 ecmd->transceiver = XCVR_INTERNAL;
2033 ecmd->speed = SPEED_10;
2034 ecmd->phy_address = ioaddr + MGMT;
2035
2036 SMC_SELECT_BANK(0);
2037 tmp = inw(ioaddr + TCR);
2038 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
2039
2040 return 0;
2041 }
2042
smc_netdev_set_ecmd(struct net_device * dev,struct ethtool_cmd * ecmd)2043 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2044 {
2045 u16 tmp;
2046 unsigned int ioaddr = dev->base_addr;
2047
2048 if (ecmd->speed != SPEED_10)
2049 return -EINVAL;
2050 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
2051 return -EINVAL;
2052 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
2053 return -EINVAL;
2054 if (ecmd->transceiver != XCVR_INTERNAL)
2055 return -EINVAL;
2056
2057 if (ecmd->port == PORT_AUI)
2058 smc_set_xcvr(dev, 1);
2059 else
2060 smc_set_xcvr(dev, 0);
2061
2062 SMC_SELECT_BANK(0);
2063 tmp = inw(ioaddr + TCR);
2064 if (ecmd->duplex == DUPLEX_FULL)
2065 tmp |= TCR_FDUPLX;
2066 else
2067 tmp &= ~TCR_FDUPLX;
2068 outw(tmp, ioaddr + TCR);
2069
2070 return 0;
2071 }
2072
check_if_running(struct net_device * dev)2073 static int check_if_running(struct net_device *dev)
2074 {
2075 if (!netif_running(dev))
2076 return -EINVAL;
2077 return 0;
2078 }
2079
smc_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)2080 static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2081 {
2082 strcpy(info->driver, DRV_NAME);
2083 strcpy(info->version, DRV_VERSION);
2084 }
2085
smc_get_settings(struct net_device * dev,struct ethtool_cmd * ecmd)2086 static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2087 {
2088 struct smc_private *smc = netdev_priv(dev);
2089 unsigned int ioaddr = dev->base_addr;
2090 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2091 int ret;
2092
2093 spin_lock_irq(&smc->lock);
2094 SMC_SELECT_BANK(3);
2095 if (smc->cfg & CFG_MII_SELECT)
2096 ret = mii_ethtool_gset(&smc->mii_if, ecmd);
2097 else
2098 ret = smc_netdev_get_ecmd(dev, ecmd);
2099 SMC_SELECT_BANK(saved_bank);
2100 spin_unlock_irq(&smc->lock);
2101 return ret;
2102 }
2103
smc_set_settings(struct net_device * dev,struct ethtool_cmd * ecmd)2104 static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
2105 {
2106 struct smc_private *smc = netdev_priv(dev);
2107 unsigned int ioaddr = dev->base_addr;
2108 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2109 int ret;
2110
2111 spin_lock_irq(&smc->lock);
2112 SMC_SELECT_BANK(3);
2113 if (smc->cfg & CFG_MII_SELECT)
2114 ret = mii_ethtool_sset(&smc->mii_if, ecmd);
2115 else
2116 ret = smc_netdev_set_ecmd(dev, ecmd);
2117 SMC_SELECT_BANK(saved_bank);
2118 spin_unlock_irq(&smc->lock);
2119 return ret;
2120 }
2121
smc_get_link(struct net_device * dev)2122 static u32 smc_get_link(struct net_device *dev)
2123 {
2124 struct smc_private *smc = netdev_priv(dev);
2125 unsigned int ioaddr = dev->base_addr;
2126 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2127 u32 ret;
2128
2129 spin_lock_irq(&smc->lock);
2130 SMC_SELECT_BANK(3);
2131 ret = smc_link_ok(dev);
2132 SMC_SELECT_BANK(saved_bank);
2133 spin_unlock_irq(&smc->lock);
2134 return ret;
2135 }
2136
2137 #ifdef PCMCIA_DEBUG
smc_get_msglevel(struct net_device * dev)2138 static u32 smc_get_msglevel(struct net_device *dev)
2139 {
2140 return pc_debug;
2141 }
2142
smc_set_msglevel(struct net_device * dev,u32 val)2143 static void smc_set_msglevel(struct net_device *dev, u32 val)
2144 {
2145 pc_debug = val;
2146 }
2147 #endif
2148
smc_nway_reset(struct net_device * dev)2149 static int smc_nway_reset(struct net_device *dev)
2150 {
2151 struct smc_private *smc = netdev_priv(dev);
2152 if (smc->cfg & CFG_MII_SELECT) {
2153 unsigned int ioaddr = dev->base_addr;
2154 u16 saved_bank = inw(ioaddr + BANK_SELECT);
2155 int res;
2156
2157 SMC_SELECT_BANK(3);
2158 res = mii_nway_restart(&smc->mii_if);
2159 SMC_SELECT_BANK(saved_bank);
2160
2161 return res;
2162 } else
2163 return -EOPNOTSUPP;
2164 }
2165
2166 static const struct ethtool_ops ethtool_ops = {
2167 .begin = check_if_running,
2168 .get_drvinfo = smc_get_drvinfo,
2169 .get_settings = smc_get_settings,
2170 .set_settings = smc_set_settings,
2171 .get_link = smc_get_link,
2172 #ifdef PCMCIA_DEBUG
2173 .get_msglevel = smc_get_msglevel,
2174 .set_msglevel = smc_set_msglevel,
2175 #endif
2176 .nway_reset = smc_nway_reset,
2177 };
2178
smc_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)2179 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2180 {
2181 struct smc_private *smc = netdev_priv(dev);
2182 struct mii_ioctl_data *mii = if_mii(rq);
2183 int rc = 0;
2184 u16 saved_bank;
2185 unsigned int ioaddr = dev->base_addr;
2186
2187 if (!netif_running(dev))
2188 return -EINVAL;
2189
2190 spin_lock_irq(&smc->lock);
2191 saved_bank = inw(ioaddr + BANK_SELECT);
2192 SMC_SELECT_BANK(3);
2193 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2194 SMC_SELECT_BANK(saved_bank);
2195 spin_unlock_irq(&smc->lock);
2196 return rc;
2197 }
2198
2199 static struct pcmcia_device_id smc91c92_ids[] = {
2200 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501),
2201 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a),
2202 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
2203 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
2204 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
2205 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
2206 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
2207 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
2208 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
2209 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
2210 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020),
2211 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023),
2212 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb),
2213 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc),
2214 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1),
2215 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5),
2216 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9),
2217 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953),
2218 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a),
2219 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314),
2220 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a),
2221 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc),
2222 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9),
2223 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d),
2224 /* These conflict with other cards! */
2225 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */
2226 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */
2227 PCMCIA_DEVICE_NULL,
2228 };
2229 MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids);
2230
2231 static struct pcmcia_driver smc91c92_cs_driver = {
2232 .owner = THIS_MODULE,
2233 .drv = {
2234 .name = "smc91c92_cs",
2235 },
2236 .probe = smc91c92_probe,
2237 .remove = smc91c92_detach,
2238 .id_table = smc91c92_ids,
2239 .suspend = smc91c92_suspend,
2240 .resume = smc91c92_resume,
2241 };
2242
init_smc91c92_cs(void)2243 static int __init init_smc91c92_cs(void)
2244 {
2245 return pcmcia_register_driver(&smc91c92_cs_driver);
2246 }
2247
exit_smc91c92_cs(void)2248 static void __exit exit_smc91c92_cs(void)
2249 {
2250 pcmcia_unregister_driver(&smc91c92_cs_driver);
2251 }
2252
2253 module_init(init_smc91c92_cs);
2254 module_exit(exit_smc91c92_cs);
2255