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/sched.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 <asm/io.h>
39 #include <asm/system.h>
40 #include <asm/uaccess.h>
41
42 #include <linux/netdevice.h>
43 #include <linux/etherdevice.h>
44 #include <linux/skbuff.h>
45 #include <linux/if_arp.h>
46 #include <linux/ioport.h>
47 #include <linux/ethtool.h>
48 #include <linux/mii.h>
49
50 #include <pcmcia/version.h>
51 #include <pcmcia/cs_types.h>
52 #include <pcmcia/cs.h>
53 #include <pcmcia/cistpl.h>
54 #include <pcmcia/cisreg.h>
55 #include <pcmcia/ciscode.h>
56 #include <pcmcia/ds.h>
57
58 /* Ositech Seven of Diamonds firmware */
59 #include "ositech.h"
60
61 /*====================================================================*/
62
63 static 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_PARM(n, "i")
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 /* Bit map of interrupts to choose from. */
81 INT_MODULE_PARM(irq_mask, 0xdeb8);
82 static int irq_list[4] = { -1 };
83 MODULE_PARM(irq_list, "1-4i");
84
85 #ifdef PCMCIA_DEBUG
86 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
87 static const char *version =
88 "smc91c92_cs.c 0.09 1996/8/4 Donald Becker, becker@scyld.com.\n";
89 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
90 #else
91 #define DEBUG(n, args...)
92 #endif
93
94 #define DRV_NAME "smc91c92_cs"
95 #define DRV_VERSION "1.122"
96
97 /*====================================================================*/
98
99 /* Operational parameter that usually are not changed. */
100
101 /* Time in jiffies before concluding Tx hung */
102 #define TX_TIMEOUT ((400*HZ)/1000)
103
104 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
105 #define INTR_WORK 4
106
107 /* Times to check the check the chip before concluding that it doesn't
108 currently have room for another Tx packet. */
109 #define MEMORY_WAIT_TIME 8
110
111 static dev_info_t dev_info = "smc91c92_cs";
112
113 static dev_link_t *dev_list;
114
115 struct smc_private {
116 dev_link_t link;
117 struct net_device dev;
118 spinlock_t lock;
119 u_short manfid;
120 u_short cardid;
121 struct net_device_stats stats;
122 dev_node_t node;
123 struct sk_buff *saved_skb;
124 int packets_waiting;
125 caddr_t base;
126 u_short cfg;
127 struct timer_list media;
128 int watchdog, tx_err;
129 u_short media_status;
130 u_short fast_poll;
131 u_short link_status;
132 struct mii_if_info mii_if;
133 int duplex;
134 int rx_ovrn;
135 };
136
137 /* Special definitions for Megahertz multifunction cards */
138 #define MEGAHERTZ_ISR 0x0380
139
140 /* Special function registers for Motorola Mariner */
141 #define MOT_LAN 0x0000
142 #define MOT_UART 0x0020
143 #define MOT_EEPROM 0x20
144
145 #define MOT_NORMAL \
146 (COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA)
147
148 /* Special function registers for Ositech cards */
149 #define OSITECH_AUI_CTL 0x0c
150 #define OSITECH_PWRDOWN 0x0d
151 #define OSITECH_RESET 0x0e
152 #define OSITECH_ISR 0x0f
153 #define OSITECH_AUI_PWR 0x0c
154 #define OSITECH_RESET_ISR 0x0e
155
156 #define OSI_AUI_PWR 0x40
157 #define OSI_LAN_PWRDOWN 0x02
158 #define OSI_MODEM_PWRDOWN 0x01
159 #define OSI_LAN_RESET 0x02
160 #define OSI_MODEM_RESET 0x01
161
162 /* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */
163 #define BANK_SELECT 14 /* Window select register. */
164 #define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); }
165
166 /* Bank 0 registers. */
167 #define TCR 0 /* transmit control register */
168 #define TCR_CLEAR 0 /* do NOTHING */
169 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
170 #define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */
171 #define TCR_MONCSN 0x0400 /* Monitor Carrier. */
172 #define TCR_FDUPLX 0x0800 /* Full duplex mode. */
173 #define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
174
175 #define EPH 2 /* Ethernet Protocol Handler report. */
176 #define EPH_TX_SUC 0x0001
177 #define EPH_SNGLCOL 0x0002
178 #define EPH_MULCOL 0x0004
179 #define EPH_LTX_MULT 0x0008
180 #define EPH_16COL 0x0010
181 #define EPH_SQET 0x0020
182 #define EPH_LTX_BRD 0x0040
183 #define EPH_TX_DEFR 0x0080
184 #define EPH_LAT_COL 0x0200
185 #define EPH_LOST_CAR 0x0400
186 #define EPH_EXC_DEF 0x0800
187 #define EPH_CTR_ROL 0x1000
188 #define EPH_RX_OVRN 0x2000
189 #define EPH_LINK_OK 0x4000
190 #define EPH_TX_UNRN 0x8000
191 #define MEMINFO 8 /* Memory Information Register */
192 #define MEMCFG 10 /* Memory Configuration Register */
193
194 /* Bank 1 registers. */
195 #define CONFIG 0
196 #define CFG_MII_SELECT 0x8000 /* 91C100 only */
197 #define CFG_NO_WAIT 0x1000
198 #define CFG_FULL_STEP 0x0400
199 #define CFG_SET_SQLCH 0x0200
200 #define CFG_AUI_SELECT 0x0100
201 #define CFG_16BIT 0x0080
202 #define CFG_DIS_LINK 0x0040
203 #define CFG_STATIC 0x0030
204 #define CFG_IRQ_SEL_1 0x0004
205 #define CFG_IRQ_SEL_0 0x0002
206 #define BASE_ADDR 2
207 #define ADDR0 4
208 #define GENERAL 10
209 #define CONTROL 12
210 #define CTL_STORE 0x0001
211 #define CTL_RELOAD 0x0002
212 #define CTL_EE_SELECT 0x0004
213 #define CTL_TE_ENABLE 0x0020
214 #define CTL_CR_ENABLE 0x0040
215 #define CTL_LE_ENABLE 0x0080
216 #define CTL_AUTO_RELEASE 0x0800
217 #define CTL_POWERDOWN 0x2000
218
219 /* Bank 2 registers. */
220 #define MMU_CMD 0
221 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
222 #define MC_RESET 0x40
223 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
224 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
225 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
226 #define PNR_ARR 2
227 #define FIFO_PORTS 4
228 #define FP_RXEMPTY 0x8000
229 #define POINTER 6
230 #define PTR_AUTO_INC 0x0040
231 #define PTR_READ 0x2000
232 #define PTR_AUTOINC 0x4000
233 #define PTR_RCV 0x8000
234 #define DATA_1 8
235 #define INTERRUPT 12
236 #define IM_RCV_INT 0x1
237 #define IM_TX_INT 0x2
238 #define IM_TX_EMPTY_INT 0x4
239 #define IM_ALLOC_INT 0x8
240 #define IM_RX_OVRN_INT 0x10
241 #define IM_EPH_INT 0x20
242
243 #define RCR 4
244 enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002,
245 RxEnable = 0x0100, RxStripCRC = 0x0200};
246 #define RCR_SOFTRESET 0x8000 /* resets the chip */
247 #define RCR_STRIP_CRC 0x200 /* strips CRC */
248 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
249 #define RCR_ALMUL 0x4 /* receive all multicast packets */
250 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
251
252 /* the normal settings for the RCR register : */
253 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
254 #define RCR_CLEAR 0x0 /* set it to a base state */
255 #define COUNTER 6
256
257 /* BANK 3 -- not the same values as in smc9194! */
258 #define MULTICAST0 0
259 #define MULTICAST2 2
260 #define MULTICAST4 4
261 #define MULTICAST6 6
262 #define MGMT 8
263 #define REVISION 0x0a
264
265 /* Transmit status bits. */
266 #define TS_SUCCESS 0x0001
267 #define TS_16COL 0x0010
268 #define TS_LATCOL 0x0200
269 #define TS_LOSTCAR 0x0400
270
271 /* Receive status bits. */
272 #define RS_ALGNERR 0x8000
273 #define RS_BADCRC 0x2000
274 #define RS_ODDFRAME 0x1000
275 #define RS_TOOLONG 0x0800
276 #define RS_TOOSHORT 0x0400
277 #define RS_MULTICAST 0x0001
278 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
279
280 #define set_bits(v, p) outw(inw(p)|(v), (p))
281 #define mask_bits(v, p) outw(inw(p)&(v), (p))
282
283 /*====================================================================*/
284
285 static dev_link_t *smc91c92_attach(void);
286 static void smc91c92_detach(dev_link_t *);
287 static void smc91c92_config(dev_link_t *link);
288 static void smc91c92_release(u_long arg);
289 static int smc91c92_event(event_t event, int priority,
290 event_callback_args_t *args);
291
292 static int smc_open(struct net_device *dev);
293 static int smc_close(struct net_device *dev);
294 static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
295 static void smc_tx_timeout(struct net_device *dev);
296 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev);
297 static void smc_interrupt(int irq, void *dev_id, struct pt_regs *regs);
298 static void smc_rx(struct net_device *dev);
299 static struct net_device_stats *smc_get_stats(struct net_device *dev);
300 static void set_rx_mode(struct net_device *dev);
301 static int s9k_config(struct net_device *dev, struct ifmap *map);
302 static void smc_set_xcvr(struct net_device *dev, int if_port);
303 static void smc_reset(struct net_device *dev);
304 static void media_check(u_long arg);
305 static void mdio_sync(ioaddr_t addr);
306 static int mdio_read(struct net_device *dev, int phy_id, int loc);
307 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value);
308 static int smc_link_ok(struct net_device *dev);
309
310 /*======================================================================
311
312 This bit of code is used to avoid unregistering network devices
313 at inappropriate times. 2.2 and later kernels are fairly picky
314 about when this can happen.
315
316 ======================================================================*/
317
flush_stale_links(void)318 static void flush_stale_links(void)
319 {
320 dev_link_t *link, *next;
321 for (link = dev_list; link; link = next) {
322 next = link->next;
323 if (link->state & DEV_STALE_LINK)
324 smc91c92_detach(link);
325 }
326 }
327
328 /*====================================================================*/
329
cs_error(client_handle_t handle,int func,int ret)330 static void cs_error(client_handle_t handle, int func, int ret)
331 {
332 error_info_t err = { func, ret };
333 CardServices(ReportError, handle, &err);
334 }
335
336 /*======================================================================
337
338 smc91c92_attach() creates an "instance" of the driver, allocating
339 local data structures for one device. The device is registered
340 with Card Services.
341
342 ======================================================================*/
343
smc91c92_attach(void)344 static dev_link_t *smc91c92_attach(void)
345 {
346 client_reg_t client_reg;
347 struct smc_private *smc;
348 dev_link_t *link;
349 struct net_device *dev;
350 int i, ret;
351
352 DEBUG(0, "smc91c92_attach()\n");
353 flush_stale_links();
354
355 /* Create new ethernet device */
356 smc = kmalloc(sizeof(struct smc_private), GFP_KERNEL);
357 if (!smc) return NULL;
358 memset(smc, 0, sizeof(struct smc_private));
359 link = &smc->link; dev = &smc->dev;
360 spin_lock_init(&smc->lock);
361 link->release.function = &smc91c92_release;
362 link->release.data = (u_long)link;
363 link->io.NumPorts1 = 16;
364 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
365 link->io.IOAddrLines = 4;
366 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
367 link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
368 if (irq_list[0] == -1)
369 link->irq.IRQInfo2 = irq_mask;
370 else
371 for (i = 0; i < 4; i++)
372 link->irq.IRQInfo2 |= 1 << irq_list[i];
373 link->irq.Handler = &smc_interrupt;
374 link->conf.Attributes = CONF_ENABLE_IRQ;
375 link->conf.Vcc = 50;
376 link->conf.IntType = INT_MEMORY_AND_IO;
377
378 /* The SMC91c92-specific entries in the device structure. */
379 dev->hard_start_xmit = &smc_start_xmit;
380 dev->get_stats = &smc_get_stats;
381 dev->set_config = &s9k_config;
382 dev->set_multicast_list = &set_rx_mode;
383 ether_setup(dev);
384 dev->open = &smc_open;
385 dev->stop = &smc_close;
386 dev->do_ioctl = &smc_ioctl;
387 #ifdef HAVE_TX_TIMEOUT
388 dev->tx_timeout = smc_tx_timeout;
389 dev->watchdog_timeo = TX_TIMEOUT;
390 #endif
391 dev->priv = link->priv = link->irq.Instance = smc;
392
393 smc->mii_if.dev = dev;
394 smc->mii_if.mdio_read = mdio_read;
395 smc->mii_if.mdio_write = mdio_write;
396 smc->mii_if.phy_id_mask = 0x1f;
397 smc->mii_if.reg_num_mask = 0x1f;
398
399 /* Register with Card Services */
400 link->next = dev_list;
401 dev_list = link;
402 client_reg.dev_info = &dev_info;
403 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
404 client_reg.EventMask = CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
405 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
406 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
407 client_reg.event_handler = &smc91c92_event;
408 client_reg.Version = 0x0210;
409 client_reg.event_callback_args.client_data = link;
410 ret = CardServices(RegisterClient, &link->handle, &client_reg);
411 if (ret != 0) {
412 cs_error(link->handle, RegisterClient, ret);
413 smc91c92_detach(link);
414 return NULL;
415 }
416
417 return link;
418 } /* smc91c92_attach */
419
420 /*======================================================================
421
422 This deletes a driver "instance". The device is de-registered
423 with Card Services. If it has been released, all local data
424 structures are freed. Otherwise, the structures will be freed
425 when the device is released.
426
427 ======================================================================*/
428
smc91c92_detach(dev_link_t * link)429 static void smc91c92_detach(dev_link_t *link)
430 {
431 struct smc_private *smc = link->priv;
432 dev_link_t **linkp;
433
434 DEBUG(0, "smc91c92_detach(0x%p)\n", link);
435
436 /* Locate device structure */
437 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
438 if (*linkp == link) break;
439 if (*linkp == NULL)
440 return;
441
442 del_timer(&link->release);
443 if (link->state & DEV_CONFIG) {
444 smc91c92_release((u_long)link);
445 if (link->state & DEV_STALE_CONFIG) {
446 link->state |= DEV_STALE_LINK;
447 return;
448 }
449 }
450
451 if (link->handle)
452 CardServices(DeregisterClient, link->handle);
453
454 /* Unlink device structure, free bits */
455 *linkp = link->next;
456 if (link->dev)
457 unregister_netdev(&smc->dev);
458 kfree(smc);
459
460 } /* smc91c92_detach */
461
462 /*====================================================================*/
463
cvt_ascii_address(struct net_device * dev,char * s)464 static int cvt_ascii_address(struct net_device *dev, char *s)
465 {
466 int i, j, da, c;
467
468 if (strlen(s) != 12)
469 return -1;
470 for (i = 0; i < 6; i++) {
471 da = 0;
472 for (j = 0; j < 2; j++) {
473 c = *s++;
474 da <<= 4;
475 da += ((c >= '0') && (c <= '9')) ?
476 (c - '0') : ((c & 0x0f) + 9);
477 }
478 dev->dev_addr[i] = da;
479 }
480 return 0;
481 }
482
483 /*====================================================================*/
484
get_tuple(int fn,client_handle_t handle,tuple_t * tuple,cisparse_t * parse)485 static int get_tuple(int fn, client_handle_t handle, tuple_t *tuple,
486 cisparse_t *parse)
487 {
488 int i;
489 i = CardServices(fn, handle, tuple);
490 if (i != CS_SUCCESS) return i;
491 i = CardServices(GetTupleData, handle, tuple);
492 if (i != CS_SUCCESS) return i;
493 return CardServices(ParseTuple, handle, tuple, parse);
494 }
495
496 #define first_tuple(a, b, c) get_tuple(GetFirstTuple, a, b, c)
497 #define next_tuple(a, b, c) get_tuple(GetNextTuple, a, b, c)
498
499 /*======================================================================
500
501 Configuration stuff for Megahertz cards
502
503 mhz_3288_power() is used to power up a 3288's ethernet chip.
504 mhz_mfc_config() handles socket setup for multifunction (1144
505 and 3288) cards. mhz_setup() gets a card's hardware ethernet
506 address.
507
508 ======================================================================*/
509
mhz_3288_power(dev_link_t * link)510 static int mhz_3288_power(dev_link_t *link)
511 {
512 struct smc_private *smc = link->priv;
513 u_char tmp;
514
515 /* Read the ISR twice... */
516 readb(smc->base+MEGAHERTZ_ISR);
517 udelay(5);
518 readb(smc->base+MEGAHERTZ_ISR);
519
520 /* Pause 200ms... */
521 mdelay(200);
522
523 /* Now read and write the COR... */
524 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR);
525 udelay(5);
526 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR);
527
528 return 0;
529 }
530
mhz_mfc_config(dev_link_t * link)531 static int mhz_mfc_config(dev_link_t *link)
532 {
533 struct smc_private *smc = link->priv;
534 struct net_device *dev = &smc->dev;
535 tuple_t tuple;
536 cisparse_t parse;
537 u_char buf[255];
538 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
539 win_req_t req;
540 memreq_t mem;
541 int i, k;
542
543 link->conf.Attributes |= CONF_ENABLE_SPKR;
544 link->conf.Status = CCSR_AUDIO_ENA;
545 link->irq.Attributes =
546 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
547 link->io.IOAddrLines = 16;
548 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
549 link->io.NumPorts2 = 8;
550
551 tuple.Attributes = tuple.TupleOffset = 0;
552 tuple.TupleData = (cisdata_t *)buf;
553 tuple.TupleDataMax = sizeof(buf);
554 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
555
556 i = first_tuple(link->handle, &tuple, &parse);
557 /* The Megahertz combo cards have modem-like CIS entries, so
558 we have to explicitly try a bunch of port combinations. */
559 while (i == CS_SUCCESS) {
560 link->conf.ConfigIndex = cf->index;
561 link->io.BasePort2 = cf->io.win[0].base;
562 for (k = 0; k < 0x400; k += 0x10) {
563 if (k & 0x80) continue;
564 link->io.BasePort1 = k ^ 0x300;
565 i = CardServices(RequestIO, link->handle, &link->io);
566 if (i == CS_SUCCESS) break;
567 }
568 if (i == CS_SUCCESS) break;
569 i = next_tuple(link->handle, &tuple, &parse);
570 }
571 if (i != CS_SUCCESS)
572 return i;
573 dev->base_addr = link->io.BasePort1;
574
575 /* Allocate a memory window, for accessing the ISR */
576 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
577 req.Base = req.Size = 0;
578 req.AccessSpeed = 0;
579 link->win = (window_handle_t)link->handle;
580 i = CardServices(RequestWindow, &link->win, &req);
581 if (i != CS_SUCCESS)
582 return i;
583 smc->base = ioremap(req.Base, req.Size);
584 mem.CardOffset = mem.Page = 0;
585 if (smc->manfid == MANFID_MOTOROLA)
586 mem.CardOffset = link->conf.ConfigBase;
587 i = CardServices(MapMemPage, link->win, &mem);
588
589 if ((i == CS_SUCCESS)
590 && (smc->manfid == MANFID_MEGAHERTZ)
591 && (smc->cardid == PRODID_MEGAHERTZ_EM3288))
592 mhz_3288_power(link);
593
594 return i;
595 }
596
mhz_setup(dev_link_t * link)597 static int mhz_setup(dev_link_t *link)
598 {
599 client_handle_t handle = link->handle;
600 struct smc_private *smc = link->priv;
601 struct net_device *dev = &smc->dev;
602 tuple_t tuple;
603 cisparse_t parse;
604 u_char buf[255], *station_addr;
605
606 tuple.Attributes = tuple.TupleOffset = 0;
607 tuple.TupleData = buf;
608 tuple.TupleDataMax = sizeof(buf);
609
610 /* Read the station address from the CIS. It is stored as the last
611 (fourth) string in the Version 1 Version/ID tuple. */
612 tuple.DesiredTuple = CISTPL_VERS_1;
613 if (first_tuple(handle, &tuple, &parse) != CS_SUCCESS)
614 return -1;
615 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
616 if (next_tuple(handle, &tuple, &parse) != CS_SUCCESS)
617 first_tuple(handle, &tuple, &parse);
618 if (parse.version_1.ns > 3) {
619 station_addr = parse.version_1.str + parse.version_1.ofs[3];
620 if (cvt_ascii_address(dev, station_addr) == 0)
621 return 0;
622 }
623
624 /* Another possibility: for the EM3288, in a special tuple */
625 tuple.DesiredTuple = 0x81;
626 if (CardServices(GetFirstTuple, handle, &tuple) != CS_SUCCESS)
627 return -1;
628 if (CardServices(GetTupleData, handle, &tuple) != CS_SUCCESS)
629 return -1;
630 buf[12] = '\0';
631 if (cvt_ascii_address(dev, buf) == 0)
632 return 0;
633
634 return -1;
635 }
636
637 /*======================================================================
638
639 Configuration stuff for the Motorola Mariner
640
641 mot_config() writes directly to the Mariner configuration
642 registers because the CIS is just bogus.
643
644 ======================================================================*/
645
mot_config(dev_link_t * link)646 static void mot_config(dev_link_t *link)
647 {
648 struct smc_private *smc = link->priv;
649 struct net_device *dev = &smc->dev;
650 ioaddr_t ioaddr = dev->base_addr;
651 ioaddr_t iouart = link->io.BasePort2;
652
653 /* Set UART base address and force map with COR bit 1 */
654 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0);
655 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1);
656 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR);
657
658 /* Set SMC base address and force map with COR bit 1 */
659 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0);
660 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1);
661 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR);
662
663 /* Wait for things to settle down */
664 mdelay(100);
665 }
666
mot_setup(dev_link_t * link)667 static int mot_setup(dev_link_t *link)
668 {
669 struct smc_private *smc = link->priv;
670 struct net_device *dev = &smc->dev;
671 ioaddr_t ioaddr = dev->base_addr;
672 int i, wait, loop;
673 u_int addr;
674
675 /* Read Ethernet address from Serial EEPROM */
676
677 for (i = 0; i < 3; i++) {
678 SMC_SELECT_BANK(2);
679 outw(MOT_EEPROM + i, ioaddr + POINTER);
680 SMC_SELECT_BANK(1);
681 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL);
682
683 for (loop = wait = 0; loop < 200; loop++) {
684 udelay(10);
685 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL));
686 if (wait == 0) break;
687 }
688
689 if (wait)
690 return -1;
691
692 addr = inw(ioaddr + GENERAL);
693 dev->dev_addr[2*i] = addr & 0xff;
694 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff;
695 }
696
697 return 0;
698 }
699
700 /*====================================================================*/
701
smc_config(dev_link_t * link)702 static int smc_config(dev_link_t *link)
703 {
704 struct smc_private *smc = link->priv;
705 struct net_device *dev = &smc->dev;
706 tuple_t tuple;
707 cisparse_t parse;
708 u_char buf[255];
709 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
710 int i;
711
712 tuple.Attributes = tuple.TupleOffset = 0;
713 tuple.TupleData = (cisdata_t *)buf;
714 tuple.TupleDataMax = sizeof(buf);
715 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
716
717 link->io.NumPorts1 = 16;
718 i = first_tuple(link->handle, &tuple, &parse);
719 while (i != CS_NO_MORE_ITEMS) {
720 if (i == CS_SUCCESS) {
721 link->conf.ConfigIndex = cf->index;
722 link->io.BasePort1 = cf->io.win[0].base;
723 link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
724 i = CardServices(RequestIO, link->handle, &link->io);
725 if (i == CS_SUCCESS) break;
726 }
727 i = next_tuple(link->handle, &tuple, &parse);
728 }
729 if (i == CS_SUCCESS)
730 dev->base_addr = link->io.BasePort1;
731 return i;
732 }
733
smc_setup(dev_link_t * link)734 static int smc_setup(dev_link_t *link)
735 {
736 client_handle_t handle = link->handle;
737 struct smc_private *smc = link->priv;
738 struct net_device *dev = &smc->dev;
739 tuple_t tuple;
740 cisparse_t parse;
741 cistpl_lan_node_id_t *node_id;
742 u_char buf[255], *station_addr;
743 int i;
744
745 tuple.Attributes = tuple.TupleOffset = 0;
746 tuple.TupleData = buf;
747 tuple.TupleDataMax = sizeof(buf);
748
749 /* Check for a LAN function extension tuple */
750 tuple.DesiredTuple = CISTPL_FUNCE;
751 i = first_tuple(handle, &tuple, &parse);
752 while (i == CS_SUCCESS) {
753 if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID)
754 break;
755 i = next_tuple(handle, &tuple, &parse);
756 }
757 if (i == CS_SUCCESS) {
758 node_id = (cistpl_lan_node_id_t *)parse.funce.data;
759 if (node_id->nb == 6) {
760 for (i = 0; i < 6; i++)
761 dev->dev_addr[i] = node_id->id[i];
762 return 0;
763 }
764 }
765
766 /* Try the third string in the Version 1 Version/ID tuple. */
767 tuple.DesiredTuple = CISTPL_VERS_1;
768 if (first_tuple(handle, &tuple, &parse) != CS_SUCCESS)
769 return -1;
770 station_addr = parse.version_1.str + parse.version_1.ofs[2];
771 if (cvt_ascii_address(dev, station_addr) == 0)
772 return 0;
773
774 return -1;
775 }
776
777 /*====================================================================*/
778
osi_config(dev_link_t * link)779 static int osi_config(dev_link_t *link)
780 {
781 struct smc_private *smc = link->priv;
782 struct net_device *dev = &smc->dev;
783 static ioaddr_t com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
784 int i, j;
785
786 link->conf.Attributes |= CONF_ENABLE_SPKR;
787 link->conf.Status = CCSR_AUDIO_ENA;
788 link->irq.Attributes =
789 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED|IRQ_HANDLE_PRESENT;
790 link->io.NumPorts1 = 64;
791 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
792 link->io.NumPorts2 = 8;
793 link->io.IOAddrLines = 16;
794
795 /* Enable Hard Decode, LAN, Modem */
796 link->conf.ConfigIndex = 0x23;
797
798 for (i = j = 0; j < 4; j++) {
799 link->io.BasePort2 = com[j];
800 i = CardServices(RequestIO, link->handle, &link->io);
801 if (i == CS_SUCCESS) break;
802 }
803 if (i != CS_SUCCESS) {
804 /* Fallback: turn off hard decode */
805 link->conf.ConfigIndex = 0x03;
806 link->io.NumPorts2 = 0;
807 i = CardServices(RequestIO, link->handle, &link->io);
808 }
809 dev->base_addr = link->io.BasePort1 + 0x10;
810 return i;
811 }
812
osi_setup(dev_link_t * link,u_short manfid,u_short cardid)813 static int osi_setup(dev_link_t *link, u_short manfid, u_short cardid)
814 {
815 client_handle_t handle = link->handle;
816 struct smc_private *smc = link->priv;
817 struct net_device *dev = &smc->dev;
818 tuple_t tuple;
819 u_char buf[255];
820 int i;
821
822 tuple.Attributes = TUPLE_RETURN_COMMON;
823 tuple.TupleData = buf;
824 tuple.TupleDataMax = sizeof(buf);
825 tuple.TupleOffset = 0;
826
827 /* Read the station address from tuple 0x90, subtuple 0x04 */
828 tuple.DesiredTuple = 0x90;
829 i = CardServices(GetFirstTuple, handle, &tuple);
830 while (i == CS_SUCCESS) {
831 i = CardServices(GetTupleData, handle, &tuple);
832 if ((i != CS_SUCCESS) || (buf[0] == 0x04))
833 break;
834 i = CardServices(GetNextTuple, handle, &tuple);
835 }
836 if (i != CS_SUCCESS)
837 return -1;
838 for (i = 0; i < 6; i++)
839 dev->dev_addr[i] = buf[i+2];
840
841 if (((manfid == MANFID_OSITECH) &&
842 (cardid == PRODID_OSITECH_SEVEN)) ||
843 ((manfid == MANFID_PSION) &&
844 (cardid == PRODID_PSION_NET100))) {
845 /* Download the Seven of Diamonds firmware */
846 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
847 outb(__Xilinx7OD[i], link->io.BasePort1+2);
848 udelay(50);
849 }
850 } else if (manfid == MANFID_OSITECH) {
851 /* Make sure both functions are powered up */
852 set_bits(0x300, link->io.BasePort1 + OSITECH_AUI_PWR);
853 /* Now, turn on the interrupt for both card functions */
854 set_bits(0x300, link->io.BasePort1 + OSITECH_RESET_ISR);
855 DEBUG(2, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n",
856 inw(link->io.BasePort1 + OSITECH_AUI_PWR),
857 inw(link->io.BasePort1 + OSITECH_RESET_ISR));
858 }
859
860 return 0;
861 }
862
863 /*======================================================================
864
865 This verifies that the chip is some SMC91cXX variant, and returns
866 the revision code if successful. Otherwise, it returns -ENODEV.
867
868 ======================================================================*/
869
check_sig(dev_link_t * link)870 static int check_sig(dev_link_t *link)
871 {
872 struct smc_private *smc = link->priv;
873 struct net_device *dev = &smc->dev;
874 ioaddr_t ioaddr = dev->base_addr;
875 int width;
876 u_short s;
877
878 SMC_SELECT_BANK(1);
879 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) {
880 /* Try powering up the chip */
881 outw(0, ioaddr + CONTROL);
882 mdelay(55);
883 }
884
885 /* Try setting bus width */
886 width = (link->io.Attributes1 == IO_DATA_PATH_WIDTH_AUTO);
887 s = inb(ioaddr + CONFIG);
888 if (width)
889 s |= CFG_16BIT;
890 else
891 s &= ~CFG_16BIT;
892 outb(s, ioaddr + CONFIG);
893
894 /* Check Base Address Register to make sure bus width is OK */
895 s = inw(ioaddr + BASE_ADDR);
896 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) &&
897 ((s >> 8) != (s & 0xff))) {
898 SMC_SELECT_BANK(3);
899 s = inw(ioaddr + REVISION);
900 return (s & 0xff);
901 }
902
903 if (width) {
904 event_callback_args_t args;
905 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n");
906 args.client_data = link;
907 smc91c92_event(CS_EVENT_RESET_PHYSICAL, 0, &args);
908 CardServices(ReleaseIO, link->handle, &link->io);
909 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
910 CardServices(RequestIO, link->handle, &link->io);
911 smc91c92_event(CS_EVENT_CARD_RESET, 0, &args);
912 return check_sig(link);
913 }
914 return -ENODEV;
915 }
916
917 /*======================================================================
918
919 smc91c92_config() is scheduled to run after a CARD_INSERTION event
920 is received, to configure the PCMCIA socket, and to make the
921 ethernet device available to the system.
922
923 ======================================================================*/
924
925 #define CS_EXIT_TEST(ret, svc, label) \
926 if (ret != CS_SUCCESS) { cs_error(link->handle, svc, ret); goto label; }
927
smc91c92_config(dev_link_t * link)928 static void smc91c92_config(dev_link_t *link)
929 {
930 client_handle_t handle = link->handle;
931 struct smc_private *smc = link->priv;
932 struct net_device *dev = &smc->dev;
933 tuple_t tuple;
934 cisparse_t parse;
935 u_short buf[32];
936 char *name;
937 int i, j, rev;
938 ioaddr_t ioaddr;
939
940 DEBUG(0, "smc91c92_config(0x%p)\n", link);
941
942 tuple.Attributes = tuple.TupleOffset = 0;
943 tuple.TupleData = (cisdata_t *)buf;
944 tuple.TupleDataMax = sizeof(buf);
945
946 tuple.DesiredTuple = CISTPL_CONFIG;
947 i = first_tuple(handle, &tuple, &parse);
948 CS_EXIT_TEST(i, ParseTuple, config_failed);
949 link->conf.ConfigBase = parse.config.base;
950 link->conf.Present = parse.config.rmask[0];
951
952 tuple.DesiredTuple = CISTPL_MANFID;
953 tuple.Attributes = TUPLE_RETURN_COMMON;
954 if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) {
955 smc->manfid = parse.manfid.manf;
956 smc->cardid = parse.manfid.card;
957 }
958
959 /* Configure card */
960 link->state |= DEV_CONFIG;
961
962 if ((smc->manfid == MANFID_OSITECH) &&
963 (smc->cardid != PRODID_OSITECH_SEVEN)) {
964 i = osi_config(link);
965 } else if ((smc->manfid == MANFID_MOTOROLA) ||
966 ((smc->manfid == MANFID_MEGAHERTZ) &&
967 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) ||
968 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) {
969 i = mhz_mfc_config(link);
970 } else {
971 i = smc_config(link);
972 }
973 CS_EXIT_TEST(i, RequestIO, config_failed);
974
975 i = CardServices(RequestIRQ, link->handle, &link->irq);
976 CS_EXIT_TEST(i, RequestIRQ, config_failed);
977 i = CardServices(RequestConfiguration, link->handle, &link->conf);
978 CS_EXIT_TEST(i, RequestConfiguration, config_failed);
979
980 if (smc->manfid == MANFID_MOTOROLA)
981 mot_config(link);
982
983 dev->irq = link->irq.AssignedIRQ;
984
985 if ((if_port >= 0) && (if_port <= 2))
986 dev->if_port = if_port;
987 else
988 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n");
989
990 if (register_netdev(dev) != 0) {
991 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n");
992 goto config_undo;
993 }
994
995 switch (smc->manfid) {
996 case MANFID_OSITECH:
997 case MANFID_PSION:
998 i = osi_setup(link, smc->manfid, smc->cardid); break;
999 case MANFID_SMC:
1000 case MANFID_NEW_MEDIA:
1001 i = smc_setup(link); break;
1002 case 0x128: /* For broken Megahertz cards */
1003 case MANFID_MEGAHERTZ:
1004 i = mhz_setup(link); break;
1005 case MANFID_MOTOROLA:
1006 default: /* get the hw address from EEPROM */
1007 i = mot_setup(link); break;
1008 }
1009
1010 if (i != 0) {
1011 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n");
1012 goto config_undo;
1013 }
1014
1015 strcpy(smc->node.dev_name, dev->name);
1016 link->dev = &smc->node;
1017 smc->duplex = 0;
1018 smc->rx_ovrn = 0;
1019
1020 rev = check_sig(link);
1021 name = "???";
1022 if (rev > 0)
1023 switch (rev >> 4) {
1024 case 3: name = "92"; break;
1025 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break;
1026 case 5: name = "95"; break;
1027 case 7: name = "100"; break;
1028 case 8: name = "100-FD"; break;
1029 case 9: name = "110"; break;
1030 }
1031 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, "
1032 "hw_addr ", dev->name, name, (rev & 0x0f), dev->base_addr,
1033 dev->irq);
1034 for (i = 0; i < 6; i++)
1035 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
1036
1037 ioaddr = dev->base_addr;
1038 if (rev > 0) {
1039 u_long mir, mcr;
1040 SMC_SELECT_BANK(0);
1041 mir = inw(ioaddr + MEMINFO) & 0xff;
1042 if (mir == 0xff) mir++;
1043 /* Get scale factor for memory size */
1044 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200;
1045 mir *= 128 * (1<<((mcr >> 9) & 7));
1046 if (mir & 0x3ff)
1047 printk(KERN_INFO " %lu byte", mir);
1048 else
1049 printk(KERN_INFO " %lu kb", mir>>10);
1050 SMC_SELECT_BANK(1);
1051 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT;
1052 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC;
1053 if (smc->manfid == MANFID_OSITECH)
1054 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0;
1055 if ((rev >> 4) >= 7)
1056 smc->cfg |= CFG_MII_SELECT;
1057 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ?
1058 "MII" : if_names[dev->if_port]);
1059 }
1060
1061 if (smc->cfg & CFG_MII_SELECT) {
1062 SMC_SELECT_BANK(3);
1063
1064 for (i = 0; i < 32; i++) {
1065 j = mdio_read(dev, i, 1);
1066 if ((j != 0) && (j != 0xffff)) break;
1067 }
1068 smc->mii_if.phy_id = (i < 32) ? i : -1;
1069 if (i < 32) {
1070 DEBUG(0, " MII transceiver at index %d, status %x.\n", i, j);
1071 } else {
1072 printk(KERN_NOTICE " No MII transceivers found!\n");
1073 }
1074
1075 SMC_SELECT_BANK(0);
1076 }
1077
1078 link->state &= ~DEV_CONFIG_PENDING;
1079 return;
1080
1081 config_undo:
1082 unregister_netdev(dev);
1083 config_failed: /* CS_EXIT_TEST() calls jump to here... */
1084 smc91c92_release((u_long)link);
1085 link->state &= ~DEV_CONFIG_PENDING;
1086
1087 } /* smc91c92_config */
1088
1089 /*======================================================================
1090
1091 After a card is removed, smc91c92_release() will unregister the net
1092 device, and release the PCMCIA configuration. If the device is
1093 still open, this will be postponed until it is closed.
1094
1095 ======================================================================*/
1096
smc91c92_release(u_long arg)1097 static void smc91c92_release(u_long arg)
1098 {
1099 dev_link_t *link = (dev_link_t *)arg;
1100 struct smc_private *smc = link->priv;
1101
1102 DEBUG(0, "smc91c92_release(0x%p)\n", link);
1103
1104 if (link->open) {
1105 DEBUG(1, "smc91c92_cs: release postponed, '%s' still open\n",
1106 link->dev->dev_name);
1107 link->state |= DEV_STALE_CONFIG;
1108 return;
1109 }
1110
1111 CardServices(ReleaseConfiguration, link->handle);
1112 CardServices(ReleaseIO, link->handle, &link->io);
1113 CardServices(ReleaseIRQ, link->handle, &link->irq);
1114 if (link->win) {
1115 iounmap(smc->base);
1116 CardServices(ReleaseWindow, link->win);
1117 }
1118
1119 link->state &= ~DEV_CONFIG;
1120
1121 } /* smc91c92_release */
1122
1123 /*======================================================================
1124
1125 The card status event handler. Mostly, this schedules other
1126 stuff to run after an event is received. A CARD_REMOVAL event
1127 also sets some flags to discourage the net drivers from trying
1128 to talk to the card any more.
1129
1130 ======================================================================*/
1131
smc91c92_event(event_t event,int priority,event_callback_args_t * args)1132 static int smc91c92_event(event_t event, int priority,
1133 event_callback_args_t *args)
1134 {
1135 dev_link_t *link = args->client_data;
1136 struct smc_private *smc = link->priv;
1137 struct net_device *dev = &smc->dev;
1138 int i;
1139
1140 DEBUG(1, "smc91c92_event(0x%06x)\n", event);
1141
1142 switch (event) {
1143 case CS_EVENT_CARD_REMOVAL:
1144 link->state &= ~DEV_PRESENT;
1145 if (link->state & DEV_CONFIG) {
1146 netif_device_detach(dev);
1147 mod_timer(&link->release, jiffies + HZ/20);
1148 }
1149 break;
1150 case CS_EVENT_CARD_INSERTION:
1151 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
1152 smc91c92_config(link);
1153 break;
1154 case CS_EVENT_PM_SUSPEND:
1155 link->state |= DEV_SUSPEND;
1156 /* Fall through... */
1157 case CS_EVENT_RESET_PHYSICAL:
1158 if (link->state & DEV_CONFIG) {
1159 if (link->open)
1160 netif_device_detach(dev);
1161 CardServices(ReleaseConfiguration, link->handle);
1162 }
1163 break;
1164 case CS_EVENT_PM_RESUME:
1165 link->state &= ~DEV_SUSPEND;
1166 /* Fall through... */
1167 case CS_EVENT_CARD_RESET:
1168 if (link->state & DEV_CONFIG) {
1169 if ((smc->manfid == MANFID_MEGAHERTZ) &&
1170 (smc->cardid == PRODID_MEGAHERTZ_EM3288))
1171 mhz_3288_power(link);
1172 CardServices(RequestConfiguration, link->handle, &link->conf);
1173 if (smc->manfid == MANFID_MOTOROLA)
1174 mot_config(link);
1175 if ((smc->manfid == MANFID_OSITECH) &&
1176 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1177 /* Power up the card and enable interrupts */
1178 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR);
1179 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR);
1180 }
1181 if (((smc->manfid == MANFID_OSITECH) &&
1182 (smc->cardid == PRODID_OSITECH_SEVEN)) ||
1183 ((smc->manfid == MANFID_PSION) &&
1184 (smc->cardid == PRODID_PSION_NET100))) {
1185 /* Download the Seven of Diamonds firmware */
1186 for (i = 0; i < sizeof(__Xilinx7OD); i++) {
1187 outb(__Xilinx7OD[i], link->io.BasePort1+2);
1188 udelay(50);
1189 }
1190 }
1191 if (link->open) {
1192 smc_reset(dev);
1193 netif_device_attach(dev);
1194 }
1195 }
1196 break;
1197 }
1198 return 0;
1199 } /* smc91c92_event */
1200
1201 /*======================================================================
1202
1203 MII interface support for SMC91cXX based cards
1204 ======================================================================*/
1205
1206 #define MDIO_SHIFT_CLK 0x04
1207 #define MDIO_DATA_OUT 0x01
1208 #define MDIO_DIR_WRITE 0x08
1209 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
1210 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
1211 #define MDIO_DATA_READ 0x02
1212
mdio_sync(ioaddr_t addr)1213 static void mdio_sync(ioaddr_t addr)
1214 {
1215 int bits;
1216 for (bits = 0; bits < 32; bits++) {
1217 outb(MDIO_DATA_WRITE1, addr);
1218 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
1219 }
1220 }
1221
mdio_read(struct net_device * dev,int phy_id,int loc)1222 static int mdio_read(struct net_device *dev, int phy_id, int loc)
1223 {
1224 ioaddr_t addr = dev->base_addr + MGMT;
1225 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
1226 int i, retval = 0;
1227
1228 mdio_sync(addr);
1229 for (i = 13; i >= 0; i--) {
1230 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1231 outb(dat, addr);
1232 outb(dat | MDIO_SHIFT_CLK, addr);
1233 }
1234 for (i = 19; i > 0; i--) {
1235 outb(0, addr);
1236 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
1237 outb(MDIO_SHIFT_CLK, addr);
1238 }
1239 return (retval>>1) & 0xffff;
1240 }
1241
mdio_write(struct net_device * dev,int phy_id,int loc,int value)1242 static void mdio_write(struct net_device *dev, int phy_id, int loc, int value)
1243 {
1244 ioaddr_t addr = dev->base_addr + MGMT;
1245 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
1246 int i;
1247
1248 mdio_sync(addr);
1249 for (i = 31; i >= 0; i--) {
1250 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
1251 outb(dat, addr);
1252 outb(dat | MDIO_SHIFT_CLK, addr);
1253 }
1254 for (i = 1; i >= 0; i--) {
1255 outb(0, addr);
1256 outb(MDIO_SHIFT_CLK, addr);
1257 }
1258 }
1259
1260 /*======================================================================
1261
1262 The driver core code, most of which should be common with a
1263 non-PCMCIA implementation.
1264
1265 ======================================================================*/
1266
1267 #ifdef PCMCIA_DEBUG
smc_dump(struct net_device * dev)1268 static void smc_dump(struct net_device *dev)
1269 {
1270 ioaddr_t ioaddr = dev->base_addr;
1271 u_short i, w, save;
1272 save = inw(ioaddr + BANK_SELECT);
1273 for (w = 0; w < 4; w++) {
1274 SMC_SELECT_BANK(w);
1275 printk(KERN_DEBUG "bank %d: ", w);
1276 for (i = 0; i < 14; i += 2)
1277 printk(" %04x", inw(ioaddr + i));
1278 printk("\n");
1279 }
1280 outw(save, ioaddr + BANK_SELECT);
1281 }
1282 #endif
1283
smc_open(struct net_device * dev)1284 static int smc_open(struct net_device *dev)
1285 {
1286 struct smc_private *smc = dev->priv;
1287 dev_link_t *link = &smc->link;
1288
1289 #ifdef PCMCIA_DEBUG
1290 DEBUG(0, "%s: smc_open(%p), ID/Window %4.4x.\n",
1291 dev->name, dev, inw(dev->base_addr + BANK_SELECT));
1292 if (pc_debug > 1) smc_dump(dev);
1293 #endif
1294
1295 /* Check that the PCMCIA card is still here. */
1296 if (!DEV_OK(link))
1297 return -ENODEV;
1298 /* Physical device present signature. */
1299 if (check_sig(link) < 0) {
1300 printk("smc91c92_cs: Yikes! Bad chip signature!\n");
1301 return -ENODEV;
1302 }
1303 link->open++;
1304 MOD_INC_USE_COUNT;
1305
1306 netif_start_queue(dev);
1307 smc->saved_skb = 0;
1308 smc->packets_waiting = 0;
1309
1310 smc_reset(dev);
1311 smc->media.function = &media_check;
1312 smc->media.data = (u_long)smc;
1313 smc->media.expires = jiffies + HZ;
1314 add_timer(&smc->media);
1315
1316 return 0;
1317 } /* smc_open */
1318
1319 /*====================================================================*/
1320
smc_close(struct net_device * dev)1321 static int smc_close(struct net_device *dev)
1322 {
1323 struct smc_private *smc = dev->priv;
1324 dev_link_t *link = &smc->link;
1325 ioaddr_t ioaddr = dev->base_addr;
1326
1327 DEBUG(0, "%s: smc_close(), status %4.4x.\n",
1328 dev->name, inw(ioaddr + BANK_SELECT));
1329
1330 netif_stop_queue(dev);
1331
1332 /* Shut off all interrupts, and turn off the Tx and Rx sections.
1333 Don't bother to check for chip present. */
1334 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */
1335 outw(0, ioaddr + INTERRUPT);
1336 SMC_SELECT_BANK(0);
1337 mask_bits(0xff00, ioaddr + RCR);
1338 mask_bits(0xff00, ioaddr + TCR);
1339
1340 /* Put the chip into power-down mode. */
1341 SMC_SELECT_BANK(1);
1342 outw(CTL_POWERDOWN, ioaddr + CONTROL );
1343
1344 link->open--;
1345 del_timer(&smc->media);
1346 if (link->state & DEV_STALE_CONFIG)
1347 mod_timer(&link->release, jiffies + HZ/20);
1348
1349 MOD_DEC_USE_COUNT;
1350
1351 return 0;
1352 } /* smc_close */
1353
1354 /*======================================================================
1355
1356 Transfer a packet to the hardware and trigger the packet send.
1357 This may be called at either from either the Tx queue code
1358 or the interrupt handler.
1359
1360 ======================================================================*/
1361
smc_hardware_send_packet(struct net_device * dev)1362 static void smc_hardware_send_packet(struct net_device * dev)
1363 {
1364 struct smc_private *smc = dev->priv;
1365 struct sk_buff *skb = smc->saved_skb;
1366 ioaddr_t ioaddr = dev->base_addr;
1367 u_char packet_no;
1368
1369 if (!skb) {
1370 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name);
1371 return;
1372 }
1373
1374 /* There should be a packet slot waiting. */
1375 packet_no = inw(ioaddr + PNR_ARR) >> 8;
1376 if (packet_no & 0x80) {
1377 /* If not, there is a hardware problem! Likely an ejected card. */
1378 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation"
1379 " failed, status %#2.2x.\n", dev->name, packet_no);
1380 dev_kfree_skb_irq(skb);
1381 smc->saved_skb = NULL;
1382 netif_start_queue(dev);
1383 return;
1384 }
1385
1386 smc->stats.tx_bytes += skb->len;
1387 /* The card should use the just-allocated buffer. */
1388 outw(packet_no, ioaddr + PNR_ARR);
1389 /* point to the beginning of the packet */
1390 outw(PTR_AUTOINC , ioaddr + POINTER);
1391
1392 /* Send the packet length (+6 for status, length and ctl byte)
1393 and the status word (set to zeros). */
1394 {
1395 u_char *buf = skb->data;
1396 u_int length = skb->len; /* The chip will pad to ethernet min. */
1397
1398 DEBUG(2, "%s: Trying to xmit packet of length %d.\n",
1399 dev->name, length);
1400
1401 /* send the packet length: +6 for status word, length, and ctl */
1402 outw(0, ioaddr + DATA_1);
1403 outw(length + 6, ioaddr + DATA_1);
1404 outsw(ioaddr + DATA_1, buf, length >> 1);
1405
1406 /* The odd last byte, if there is one, goes in the control word. */
1407 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1);
1408 }
1409
1410 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */
1411 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) |
1412 (inw(ioaddr + INTERRUPT) & 0xff00),
1413 ioaddr + INTERRUPT);
1414
1415 /* The chip does the rest of the work. */
1416 outw(MC_ENQUEUE , ioaddr + MMU_CMD);
1417
1418 smc->saved_skb = NULL;
1419 dev_kfree_skb_irq(skb);
1420 dev->trans_start = jiffies;
1421 netif_start_queue(dev);
1422 return;
1423 }
1424
1425 /*====================================================================*/
1426
smc_tx_timeout(struct net_device * dev)1427 static void smc_tx_timeout(struct net_device *dev)
1428 {
1429 struct smc_private *smc = dev->priv;
1430 ioaddr_t ioaddr = dev->base_addr;
1431
1432 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, "
1433 "Tx_status %2.2x status %4.4x.\n",
1434 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2));
1435 smc->stats.tx_errors++;
1436 smc_reset(dev);
1437 dev->trans_start = jiffies;
1438 smc->saved_skb = NULL;
1439 netif_wake_queue(dev);
1440 }
1441
smc_start_xmit(struct sk_buff * skb,struct net_device * dev)1442 static int smc_start_xmit(struct sk_buff *skb, struct net_device *dev)
1443 {
1444 struct smc_private *smc = dev->priv;
1445 ioaddr_t ioaddr = dev->base_addr;
1446 u_short num_pages;
1447 short time_out, ir;
1448
1449 netif_stop_queue(dev);
1450
1451 DEBUG(2, "%s: smc_start_xmit(length = %d) called,"
1452 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2));
1453
1454 if (smc->saved_skb) {
1455 /* THIS SHOULD NEVER HAPPEN. */
1456 smc->stats.tx_aborted_errors++;
1457 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n",
1458 dev->name);
1459 return 1;
1460 }
1461 smc->saved_skb = skb;
1462
1463 num_pages = skb->len >> 8;
1464
1465 if (num_pages > 7) {
1466 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name);
1467 dev_kfree_skb (skb);
1468 smc->saved_skb = NULL;
1469 smc->stats.tx_dropped++;
1470 return 0; /* Do not re-queue this packet. */
1471 }
1472 /* A packet is now waiting. */
1473 smc->packets_waiting++;
1474
1475 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */
1476
1477 /* need MC_RESET to keep the memory consistent. errata? */
1478 if (smc->rx_ovrn) {
1479 outw(MC_RESET, ioaddr + MMU_CMD);
1480 smc->rx_ovrn = 0;
1481 }
1482
1483 /* Allocate the memory; send the packet now if we win. */
1484 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD);
1485 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) {
1486 ir = inw(ioaddr+INTERRUPT);
1487 if (ir & IM_ALLOC_INT) {
1488 /* Acknowledge the interrupt, send the packet. */
1489 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT);
1490 smc_hardware_send_packet(dev); /* Send the packet now.. */
1491 return 0;
1492 }
1493 }
1494
1495 /* Otherwise defer until the Tx-space-allocated interrupt. */
1496 DEBUG(2, "%s: memory allocation deferred.\n", dev->name);
1497 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
1498
1499 return 0;
1500 }
1501
1502 /*======================================================================
1503
1504 Handle a Tx anomolous event. Entered while in Window 2.
1505
1506 ======================================================================*/
1507
smc_tx_err(struct net_device * dev)1508 static void smc_tx_err(struct net_device * dev)
1509 {
1510 struct smc_private *smc = (struct smc_private *)dev->priv;
1511 ioaddr_t ioaddr = dev->base_addr;
1512 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff;
1513 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f;
1514 int tx_status;
1515
1516 /* select this as the packet to read from */
1517 outw(packet_no, ioaddr + PNR_ARR);
1518
1519 /* read the first word from this packet */
1520 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER);
1521
1522 tx_status = inw(ioaddr + DATA_1);
1523
1524 smc->stats.tx_errors++;
1525 if (tx_status & TS_LOSTCAR) smc->stats.tx_carrier_errors++;
1526 if (tx_status & TS_LATCOL) smc->stats.tx_window_errors++;
1527 if (tx_status & TS_16COL) {
1528 smc->stats.tx_aborted_errors++;
1529 smc->tx_err++;
1530 }
1531
1532 if (tx_status & TS_SUCCESS) {
1533 printk(KERN_NOTICE "%s: Successful packet caused error "
1534 "interrupt?\n", dev->name);
1535 }
1536 /* re-enable transmit */
1537 SMC_SELECT_BANK(0);
1538 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1539 SMC_SELECT_BANK(2);
1540
1541 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */
1542
1543 /* one less packet waiting for me */
1544 smc->packets_waiting--;
1545
1546 outw(saved_packet, ioaddr + PNR_ARR);
1547 return;
1548 }
1549
1550 /*====================================================================*/
1551
smc_eph_irq(struct net_device * dev)1552 static void smc_eph_irq(struct net_device *dev)
1553 {
1554 struct smc_private *smc = dev->priv;
1555 ioaddr_t ioaddr = dev->base_addr;
1556 u_short card_stats, ephs;
1557
1558 SMC_SELECT_BANK(0);
1559 ephs = inw(ioaddr + EPH);
1560 DEBUG(2, "%s: Ethernet protocol handler interrupt, status"
1561 " %4.4x.\n", dev->name, ephs);
1562 /* Could be a counter roll-over warning: update stats. */
1563 card_stats = inw(ioaddr + COUNTER);
1564 /* single collisions */
1565 smc->stats.collisions += card_stats & 0xF;
1566 card_stats >>= 4;
1567 /* multiple collisions */
1568 smc->stats.collisions += card_stats & 0xF;
1569 #if 0 /* These are for when linux supports these statistics */
1570 card_stats >>= 4; /* deferred */
1571 card_stats >>= 4; /* excess deferred */
1572 #endif
1573 /* If we had a transmit error we must re-enable the transmitter. */
1574 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
1575
1576 /* Clear a link error interrupt. */
1577 SMC_SELECT_BANK(1);
1578 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL);
1579 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1580 ioaddr + CONTROL);
1581 SMC_SELECT_BANK(2);
1582 }
1583
1584 /*====================================================================*/
1585
smc_interrupt(int irq,void * dev_id,struct pt_regs * regs)1586 static void smc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1587 {
1588 struct smc_private *smc = dev_id;
1589 struct net_device *dev = &smc->dev;
1590 ioaddr_t ioaddr;
1591 u_short saved_bank, saved_pointer, mask, status;
1592 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */
1593
1594 if (!netif_device_present(dev))
1595 return;
1596 ioaddr = dev->base_addr;
1597
1598 DEBUG(3, "%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
1599 irq, ioaddr);
1600
1601 smc->watchdog = 0;
1602 saved_bank = inw(ioaddr + BANK_SELECT);
1603 if ((saved_bank & 0xff00) != 0x3300) {
1604 /* The device does not exist -- the card could be off-line, or
1605 maybe it has been ejected. */
1606 DEBUG(1, "%s: SMC91c92 interrupt %d for non-existent"
1607 "/ejected device.\n", dev->name, irq);
1608 goto irq_done;
1609 }
1610
1611 SMC_SELECT_BANK(2);
1612 saved_pointer = inw(ioaddr + POINTER);
1613 mask = inw(ioaddr + INTERRUPT) >> 8;
1614 /* clear all interrupts */
1615 outw(0, ioaddr + INTERRUPT);
1616
1617 do { /* read the status flag, and mask it */
1618 status = inw(ioaddr + INTERRUPT) & 0xff;
1619 DEBUG(3, "%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
1620 status, mask);
1621 if ((status & mask) == 0)
1622 break;
1623
1624 if (status & IM_RCV_INT) {
1625 /* Got a packet(s). */
1626 smc_rx(dev);
1627 }
1628 if (status & IM_TX_INT) {
1629 smc_tx_err(dev);
1630 outw(IM_TX_INT, ioaddr + INTERRUPT);
1631 }
1632 status &= mask;
1633 if (status & IM_TX_EMPTY_INT) {
1634 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT);
1635 mask &= ~IM_TX_EMPTY_INT;
1636 smc->stats.tx_packets += smc->packets_waiting;
1637 smc->packets_waiting = 0;
1638 }
1639 if (status & IM_ALLOC_INT) {
1640 /* Clear this interrupt so it doesn't happen again */
1641 mask &= ~IM_ALLOC_INT;
1642
1643 smc_hardware_send_packet(dev);
1644
1645 /* enable xmit interrupts based on this */
1646 mask |= (IM_TX_EMPTY_INT | IM_TX_INT);
1647
1648 /* and let the card send more packets to me */
1649 netif_wake_queue(dev);
1650 }
1651 if (status & IM_RX_OVRN_INT) {
1652 smc->stats.rx_errors++;
1653 smc->stats.rx_fifo_errors++;
1654 if (smc->duplex)
1655 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */
1656 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT);
1657 }
1658 if (status & IM_EPH_INT)
1659 smc_eph_irq(dev);
1660 } while (--bogus_cnt);
1661
1662 DEBUG(3, " Restoring saved registers mask %2.2x bank %4.4x"
1663 " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
1664
1665 /* restore state register */
1666 outw((mask<<8), ioaddr + INTERRUPT);
1667 outw(saved_pointer, ioaddr + POINTER);
1668 SMC_SELECT_BANK(saved_bank);
1669
1670 DEBUG(3, "%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
1671
1672 irq_done:
1673
1674 if ((smc->manfid == MANFID_OSITECH) &&
1675 (smc->cardid != PRODID_OSITECH_SEVEN)) {
1676 /* Retrigger interrupt if needed */
1677 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR);
1678 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR);
1679 }
1680 if (smc->manfid == MANFID_MOTOROLA) {
1681 u_char cor;
1682 cor = readb(smc->base + MOT_UART + CISREG_COR);
1683 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR);
1684 writeb(cor, smc->base + MOT_UART + CISREG_COR);
1685 cor = readb(smc->base + MOT_LAN + CISREG_COR);
1686 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
1687 writeb(cor, smc->base + MOT_LAN + CISREG_COR);
1688 }
1689 #ifdef DOES_NOT_WORK
1690 if (smc->base != NULL) { /* Megahertz MFC's */
1691 readb(smc->base+MEGAHERTZ_ISR);
1692 readb(smc->base+MEGAHERTZ_ISR);
1693 }
1694 #endif
1695 }
1696
1697 /*====================================================================*/
1698
smc_rx(struct net_device * dev)1699 static void smc_rx(struct net_device *dev)
1700 {
1701 struct smc_private *smc = (struct smc_private *)dev->priv;
1702 ioaddr_t ioaddr = dev->base_addr;
1703 int rx_status;
1704 int packet_length; /* Caution: not frame length, rather words
1705 to transfer from the chip. */
1706
1707 /* Assertion: we are in Window 2. */
1708
1709 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) {
1710 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n",
1711 dev->name);
1712 return;
1713 }
1714
1715 /* Reset the read pointer, and read the status and packet length. */
1716 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER);
1717 rx_status = inw(ioaddr + DATA_1);
1718 packet_length = inw(ioaddr + DATA_1) & 0x07ff;
1719
1720 DEBUG(2, "%s: Receive status %4.4x length %d.\n",
1721 dev->name, rx_status, packet_length);
1722
1723 if (!(rx_status & RS_ERRORS)) {
1724 /* do stuff to make a new packet */
1725 struct sk_buff *skb;
1726
1727 /* Note: packet_length adds 5 or 6 extra bytes here! */
1728 skb = dev_alloc_skb(packet_length+2);
1729
1730 if (skb == NULL) {
1731 DEBUG(1, "%s: Low memory, packet dropped.\n", dev->name);
1732 smc->stats.rx_dropped++;
1733 outw(MC_RELEASE, ioaddr + MMU_CMD);
1734 return;
1735 }
1736
1737 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6);
1738 skb_reserve(skb, 2);
1739 insw(ioaddr+DATA_1, skb_put(skb, packet_length),
1740 (packet_length+1)>>1);
1741 skb->protocol = eth_type_trans(skb, dev);
1742
1743 skb->dev = dev;
1744 netif_rx(skb);
1745 dev->last_rx = jiffies;
1746 smc->stats.rx_packets++;
1747 smc->stats.rx_bytes += packet_length;
1748 if (rx_status & RS_MULTICAST)
1749 smc->stats.multicast++;
1750 } else {
1751 /* error ... */
1752 smc->stats.rx_errors++;
1753
1754 if (rx_status & RS_ALGNERR) smc->stats.rx_frame_errors++;
1755 if (rx_status & (RS_TOOSHORT | RS_TOOLONG))
1756 smc->stats.rx_length_errors++;
1757 if (rx_status & RS_BADCRC) smc->stats.rx_crc_errors++;
1758 }
1759 /* Let the MMU free the memory of this packet. */
1760 outw(MC_RELEASE, ioaddr + MMU_CMD);
1761
1762 return;
1763 }
1764
1765 /*====================================================================*/
1766
smc_get_stats(struct net_device * dev)1767 static struct net_device_stats *smc_get_stats(struct net_device *dev)
1768 {
1769 struct smc_private *smc = (struct smc_private *)dev->priv;
1770 /* Nothing to update - the 91c92 is a pretty primative chip. */
1771 return &smc->stats;
1772 }
1773
1774 /*======================================================================
1775
1776 Calculate values for the hardware multicast filter hash table.
1777
1778 ======================================================================*/
1779
fill_multicast_tbl(int count,struct dev_mc_list * addrs,u_char * multicast_table)1780 static void fill_multicast_tbl(int count, struct dev_mc_list *addrs,
1781 u_char *multicast_table)
1782 {
1783 struct dev_mc_list *mc_addr;
1784
1785 for (mc_addr = addrs; mc_addr && --count > 0; mc_addr = mc_addr->next) {
1786 u_int position = ether_crc(6, mc_addr->dmi_addr);
1787 #ifndef final_version /* Verify multicast address. */
1788 if ((mc_addr->dmi_addr[0] & 1) == 0)
1789 continue;
1790 #endif
1791 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7);
1792 }
1793 }
1794
1795 /*======================================================================
1796
1797 Set the receive mode.
1798
1799 This routine is used by both the protocol level to notify us of
1800 promiscuous/multicast mode changes, and by the open/reset code to
1801 initialize the Rx registers. We always set the multicast list and
1802 leave the receiver running.
1803
1804 ======================================================================*/
1805
set_rx_mode(struct net_device * dev)1806 static void set_rx_mode(struct net_device *dev)
1807 {
1808 ioaddr_t ioaddr = dev->base_addr;
1809 struct smc_private *smc = dev->priv;
1810 u_int multicast_table[ 2 ] = { 0, };
1811 unsigned long flags;
1812 u_short rx_cfg_setting;
1813
1814 if (dev->flags & IFF_PROMISC) {
1815 printk(KERN_NOTICE "%s: setting Rx mode to promiscuous.\n", dev->name);
1816 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti;
1817 } else if (dev->flags & IFF_ALLMULTI)
1818 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti;
1819 else {
1820 if (dev->mc_count) {
1821 fill_multicast_tbl(dev->mc_count, dev->mc_list,
1822 (u_char *)multicast_table);
1823 }
1824 rx_cfg_setting = RxStripCRC | RxEnable;
1825 }
1826
1827 /* Load MC table and Rx setting into the chip without interrupts. */
1828 spin_lock_irqsave(&smc->lock, flags);
1829 SMC_SELECT_BANK(3);
1830 outl(multicast_table[0], ioaddr + MULTICAST0);
1831 outl(multicast_table[1], ioaddr + MULTICAST4);
1832 SMC_SELECT_BANK(0);
1833 outw(rx_cfg_setting, ioaddr + RCR);
1834 SMC_SELECT_BANK(2);
1835 spin_unlock_irqrestore(&smc->lock, flags);
1836
1837 return;
1838 }
1839
1840 /*======================================================================
1841
1842 Senses when a card's config changes. Here, it's coax or TP.
1843
1844 ======================================================================*/
1845
s9k_config(struct net_device * dev,struct ifmap * map)1846 static int s9k_config(struct net_device *dev, struct ifmap *map)
1847 {
1848 struct smc_private *smc = dev->priv;
1849 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1850 if (smc->cfg & CFG_MII_SELECT)
1851 return -EOPNOTSUPP;
1852 else if (map->port > 2)
1853 return -EINVAL;
1854 dev->if_port = map->port;
1855 printk(KERN_INFO "%s: switched to %s port\n",
1856 dev->name, if_names[dev->if_port]);
1857 smc_reset(dev);
1858 }
1859 return 0;
1860 }
1861
1862 /*======================================================================
1863
1864 Reset the chip, reloading every register that might be corrupted.
1865
1866 ======================================================================*/
1867
1868 /*
1869 Set transceiver type, perhaps to something other than what the user
1870 specified in dev->if_port.
1871 */
smc_set_xcvr(struct net_device * dev,int if_port)1872 static void smc_set_xcvr(struct net_device *dev, int if_port)
1873 {
1874 struct smc_private *smc = (struct smc_private *)dev->priv;
1875 ioaddr_t ioaddr = dev->base_addr;
1876 u_short saved_bank;
1877
1878 saved_bank = inw(ioaddr + BANK_SELECT);
1879 SMC_SELECT_BANK(1);
1880 if (if_port == 2) {
1881 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG);
1882 if ((smc->manfid == MANFID_OSITECH) &&
1883 (smc->cardid != PRODID_OSITECH_SEVEN))
1884 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1885 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002);
1886 } else {
1887 outw(smc->cfg, ioaddr + CONFIG);
1888 if ((smc->manfid == MANFID_OSITECH) &&
1889 (smc->cardid != PRODID_OSITECH_SEVEN))
1890 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR);
1891 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001);
1892 }
1893 SMC_SELECT_BANK(saved_bank);
1894 }
1895
smc_reset(struct net_device * dev)1896 static void smc_reset(struct net_device *dev)
1897 {
1898 ioaddr_t ioaddr = dev->base_addr;
1899 struct smc_private *smc = dev->priv;
1900 int i;
1901
1902 DEBUG(0, "%s: smc91c92 reset called.\n", dev->name);
1903
1904 /* The first interaction must be a write to bring the chip out
1905 of sleep mode. */
1906 SMC_SELECT_BANK(0);
1907 /* Reset the chip. */
1908 outw(RCR_SOFTRESET, ioaddr + RCR);
1909 udelay(10);
1910
1911 /* Clear the transmit and receive configuration registers. */
1912 outw(RCR_CLEAR, ioaddr + RCR);
1913 outw(TCR_CLEAR, ioaddr + TCR);
1914
1915 /* Set the Window 1 control, configuration and station addr registers.
1916 No point in writing the I/O base register ;-> */
1917 SMC_SELECT_BANK(1);
1918 /* Automatically release succesfully transmitted packets,
1919 Accept link errors, counter and Tx error interrupts. */
1920 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE,
1921 ioaddr + CONTROL);
1922 smc_set_xcvr(dev, dev->if_port);
1923 if ((smc->manfid == MANFID_OSITECH) &&
1924 (smc->cardid != PRODID_OSITECH_SEVEN))
1925 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) |
1926 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00),
1927 ioaddr - 0x10 + OSITECH_AUI_PWR);
1928
1929 /* Fill in the physical address. The databook is wrong about the order! */
1930 for (i = 0; i < 6; i += 2)
1931 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i],
1932 ioaddr + ADDR0 + i);
1933
1934 /* Reset the MMU */
1935 SMC_SELECT_BANK(2);
1936 outw(MC_RESET, ioaddr + MMU_CMD);
1937 outw(0, ioaddr + INTERRUPT);
1938
1939 /* Re-enable the chip. */
1940 SMC_SELECT_BANK(0);
1941 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) |
1942 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
1943 set_rx_mode(dev);
1944
1945 if (smc->cfg & CFG_MII_SELECT) {
1946 SMC_SELECT_BANK(3);
1947
1948 /* Reset MII */
1949 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000);
1950
1951 /* Advertise 100F, 100H, 10F, 10H */
1952 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1);
1953
1954 /* Restart MII autonegotiation */
1955 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000);
1956 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200);
1957 }
1958
1959 /* Enable interrupts. */
1960 SMC_SELECT_BANK(2);
1961 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8,
1962 ioaddr + INTERRUPT);
1963 }
1964
1965 /*======================================================================
1966
1967 Media selection timer routine
1968
1969 ======================================================================*/
1970
media_check(u_long arg)1971 static void media_check(u_long arg)
1972 {
1973 struct smc_private *smc = (struct smc_private *)(arg);
1974 struct net_device *dev = &smc->dev;
1975 ioaddr_t ioaddr = dev->base_addr;
1976 u_short i, media, saved_bank;
1977 u_short link;
1978
1979 saved_bank = inw(ioaddr + BANK_SELECT);
1980
1981 if (!netif_device_present(dev))
1982 goto reschedule;
1983
1984 SMC_SELECT_BANK(2);
1985
1986 /* need MC_RESET to keep the memory consistent. errata? */
1987 if (smc->rx_ovrn) {
1988 outw(MC_RESET, ioaddr + MMU_CMD);
1989 smc->rx_ovrn = 0;
1990 }
1991 i = inw(ioaddr + INTERRUPT);
1992 SMC_SELECT_BANK(0);
1993 media = inw(ioaddr + EPH) & EPH_LINK_OK;
1994 SMC_SELECT_BANK(1);
1995 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1;
1996
1997 /* Check for pending interrupt with watchdog flag set: with
1998 this, we can limp along even if the interrupt is blocked */
1999 if (smc->watchdog++ && ((i>>8) & i)) {
2000 if (!smc->fast_poll)
2001 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
2002 smc_interrupt(dev->irq, smc, NULL);
2003 smc->fast_poll = HZ;
2004 }
2005 if (smc->fast_poll) {
2006 smc->fast_poll--;
2007 smc->media.expires = jiffies + 1;
2008 add_timer(&smc->media);
2009 SMC_SELECT_BANK(saved_bank);
2010 return;
2011 }
2012
2013 if (smc->cfg & CFG_MII_SELECT) {
2014 if (smc->mii_if.phy_id < 0)
2015 goto reschedule;
2016
2017 SMC_SELECT_BANK(3);
2018 link = mdio_read(dev, smc->mii_if.phy_id, 1);
2019 if (!link || (link == 0xffff)) {
2020 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
2021 smc->mii_if.phy_id = -1;
2022 goto reschedule;
2023 }
2024
2025 link &= 0x0004;
2026 if (link != smc->link_status) {
2027 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5);
2028 printk(KERN_INFO "%s: %s link beat\n", dev->name,
2029 (link) ? "found" : "lost");
2030 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40))
2031 ? TCR_FDUPLX : 0);
2032 if (link) {
2033 printk(KERN_INFO "%s: autonegotiation complete: "
2034 "%sbaseT-%cD selected\n", dev->name,
2035 ((p & 0x0180) ? "100" : "10"),
2036 (smc->duplex ? 'F' : 'H'));
2037 }
2038 SMC_SELECT_BANK(0);
2039 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR);
2040 smc->link_status = link;
2041 }
2042 goto reschedule;
2043 }
2044
2045 /* Ignore collisions unless we've had no rx's recently */
2046 if (jiffies - dev->last_rx > HZ) {
2047 if (smc->tx_err || (smc->media_status & EPH_16COL))
2048 media |= EPH_16COL;
2049 }
2050 smc->tx_err = 0;
2051
2052 if (media != smc->media_status) {
2053 if ((media & smc->media_status & 1) &&
2054 ((smc->media_status ^ media) & EPH_LINK_OK))
2055 printk(KERN_INFO "%s: %s link beat\n", dev->name,
2056 (smc->media_status & EPH_LINK_OK ? "lost" : "found"));
2057 else if ((media & smc->media_status & 2) &&
2058 ((smc->media_status ^ media) & EPH_16COL))
2059 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
2060 (media & EPH_16COL ? "problem" : "ok"));
2061 if (dev->if_port == 0) {
2062 if (media & 1) {
2063 if (media & EPH_LINK_OK)
2064 printk(KERN_INFO "%s: flipped to 10baseT\n",
2065 dev->name);
2066 else
2067 smc_set_xcvr(dev, 2);
2068 } else {
2069 if (media & EPH_16COL)
2070 smc_set_xcvr(dev, 1);
2071 else
2072 printk(KERN_INFO "%s: flipped to 10base2\n",
2073 dev->name);
2074 }
2075 }
2076 smc->media_status = media;
2077 }
2078
2079 reschedule:
2080 smc->media.expires = jiffies + HZ;
2081 add_timer(&smc->media);
2082 SMC_SELECT_BANK(saved_bank);
2083 }
2084
smc_link_ok(struct net_device * dev)2085 static int smc_link_ok(struct net_device *dev)
2086 {
2087 ioaddr_t ioaddr = dev->base_addr;
2088 struct smc_private *smc = dev->priv;
2089
2090 if (smc->cfg & CFG_MII_SELECT) {
2091 return mii_link_ok(&smc->mii_if);
2092 } else {
2093 SMC_SELECT_BANK(0);
2094 return inw(ioaddr + EPH) & EPH_LINK_OK;
2095 }
2096 }
2097
smc_netdev_get_ecmd(struct net_device * dev,struct ethtool_cmd * ecmd)2098 static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2099 {
2100 u16 tmp;
2101 ioaddr_t ioaddr = dev->base_addr;
2102
2103 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI |
2104 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full);
2105
2106 SMC_SELECT_BANK(1);
2107 tmp = inw(ioaddr + CONFIG);
2108 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP;
2109 ecmd->transceiver = XCVR_INTERNAL;
2110 ecmd->speed = SPEED_10;
2111 ecmd->phy_address = ioaddr + MGMT;
2112
2113 SMC_SELECT_BANK(0);
2114 tmp = inw(ioaddr + TCR);
2115 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF;
2116
2117 return 0;
2118 }
2119
smc_netdev_set_ecmd(struct net_device * dev,struct ethtool_cmd * ecmd)2120 static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
2121 {
2122 u16 tmp;
2123 ioaddr_t ioaddr = dev->base_addr;
2124
2125 if (ecmd->speed != SPEED_10)
2126 return -EINVAL;
2127 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
2128 return -EINVAL;
2129 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI)
2130 return -EINVAL;
2131 if (ecmd->transceiver != XCVR_INTERNAL)
2132 return -EINVAL;
2133
2134 if (ecmd->port == PORT_AUI)
2135 smc_set_xcvr(dev, 1);
2136 else
2137 smc_set_xcvr(dev, 0);
2138
2139 SMC_SELECT_BANK(0);
2140 tmp = inw(ioaddr + TCR);
2141 if (ecmd->duplex == DUPLEX_FULL)
2142 tmp |= TCR_FDUPLX;
2143 else
2144 tmp &= ~TCR_FDUPLX;
2145 outw(ioaddr + TCR, tmp);
2146
2147 return 0;
2148 }
2149
smc_ethtool_ioctl(struct net_device * dev,void * useraddr)2150 static int smc_ethtool_ioctl (struct net_device *dev, void *useraddr)
2151 {
2152 u32 ethcmd;
2153 struct smc_private *smc = dev->priv;
2154
2155 if (get_user(ethcmd, (u32 *)useraddr))
2156 return -EFAULT;
2157
2158 switch (ethcmd) {
2159
2160 case ETHTOOL_GDRVINFO: {
2161 struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
2162 strcpy(info.driver, DRV_NAME);
2163 strcpy(info.version, DRV_VERSION);
2164 if (copy_to_user(useraddr, &info, sizeof(info)))
2165 return -EFAULT;
2166 return 0;
2167 }
2168
2169 /* get settings */
2170 case ETHTOOL_GSET: {
2171 int ret;
2172 struct ethtool_cmd ecmd = { ETHTOOL_GSET };
2173 spin_lock_irq(&smc->lock);
2174 if (smc->cfg & CFG_MII_SELECT)
2175 ret = mii_ethtool_gset(&smc->mii_if, &ecmd);
2176 else
2177 ret = smc_netdev_get_ecmd(dev, &ecmd);
2178 spin_unlock_irq(&smc->lock);
2179 if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
2180 return -EFAULT;
2181 return ret;
2182 }
2183
2184 /* set settings */
2185 case ETHTOOL_SSET: {
2186 int ret;
2187 struct ethtool_cmd ecmd;
2188 if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
2189 return -EFAULT;
2190 spin_lock_irq(&smc->lock);
2191 if (smc->cfg & CFG_MII_SELECT)
2192 ret = mii_ethtool_sset(&smc->mii_if, &ecmd);
2193 else
2194 ret = smc_netdev_set_ecmd(dev, &ecmd);
2195 spin_unlock_irq(&smc->lock);
2196 return ret;
2197 }
2198
2199 /* get link status */
2200 case ETHTOOL_GLINK: {
2201 struct ethtool_value edata = { ETHTOOL_GLINK };
2202 spin_lock_irq(&smc->lock);
2203 edata.data = smc_link_ok(dev);
2204 spin_unlock_irq(&smc->lock);
2205 if (copy_to_user(useraddr, &edata, sizeof(edata)))
2206 return -EFAULT;
2207 return 0;
2208 }
2209
2210 #ifdef PCMCIA_DEBUG
2211 /* get message-level */
2212 case ETHTOOL_GMSGLVL: {
2213 struct ethtool_value edata = { ETHTOOL_GMSGLVL };
2214 edata.data = pc_debug;
2215 if (copy_to_user(useraddr, &edata, sizeof(edata)))
2216 return -EFAULT;
2217 return 0;
2218 }
2219
2220 /* set message-level */
2221 case ETHTOOL_SMSGLVL: {
2222 struct ethtool_value edata;
2223 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2224 return -EFAULT;
2225 pc_debug = edata.data;
2226 return 0;
2227 }
2228 #endif
2229 /* restart autonegotiation */
2230 case ETHTOOL_NWAY_RST: {
2231 if (smc->cfg & CFG_MII_SELECT)
2232 return mii_nway_restart(&smc->mii_if);
2233 else
2234 return -EOPNOTSUPP;
2235 }
2236
2237 default:
2238 break;
2239 }
2240
2241 return -EOPNOTSUPP;
2242 }
2243
smc_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)2244 static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
2245 {
2246 struct smc_private *smc = dev->priv;
2247 struct mii_ioctl_data *mii;
2248 int rc = 0;
2249
2250 mii = (struct mii_ioctl_data *) &rq->ifr_data;
2251 if (!netif_running(dev))
2252 return -EINVAL;
2253
2254 switch (cmd) {
2255 case SIOCETHTOOL:
2256 rc = smc_ethtool_ioctl(dev, (void *) rq->ifr_data);
2257 break;
2258
2259 default:
2260 spin_lock_irq(&smc->lock);
2261 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL);
2262 spin_unlock_irq(&smc->lock);
2263 break;
2264 }
2265
2266 return rc;
2267 }
2268
2269
2270 /*====================================================================*/
2271
init_smc91c92_cs(void)2272 static int __init init_smc91c92_cs(void)
2273 {
2274 servinfo_t serv;
2275 DEBUG(0, "%s\n", version);
2276 CardServices(GetCardServicesInfo, &serv);
2277 if (serv.Revision != CS_RELEASE_CODE) {
2278 printk(KERN_ERR
2279 "smc91c92_cs: Card Services release does not match!\n");
2280 return -EINVAL;
2281 }
2282 register_pccard_driver(&dev_info, &smc91c92_attach, &smc91c92_detach);
2283 return 0;
2284 }
2285
exit_smc91c92_cs(void)2286 static void __exit exit_smc91c92_cs(void)
2287 {
2288 DEBUG(0, "smc91c92_cs: unloading\n");
2289 unregister_pccard_driver(&dev_info);
2290 while (dev_list != NULL)
2291 smc91c92_detach(dev_list);
2292 }
2293
2294 module_init(init_smc91c92_cs);
2295 module_exit(exit_smc91c92_cs);
2296