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