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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / net / pcmcia / pcnet_cs.c
blobb0126304ca08398ba3b40189c154b9ada522750f
1 /*======================================================================
2
3 A PCMCIA ethernet driver for NS8390-based cards
4
5 This driver supports the D-Link DE-650 and Linksys EthernetCard
6 cards, the newer D-Link and Linksys combo cards, Accton EN2212
7 cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory
8 mode, and the IBM Credit Card Adapter, the NE4100, the Thomas
9 Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory
10 mode. It will also handle the Socket EA card in either mode.
11
12 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
13
14 pcnet_cs.c 1.153 2003/11/09 18:53:09
15
16 The network driver code is based on Donald Becker's NE2000 code:
17
18 Written 1992,1993 by Donald Becker.
19 Copyright 1993 United States Government as represented by the
20 Director, National Security Agency. This software may be used and
21 distributed according to the terms of the GNU General Public License,
22 incorporated herein by reference.
23 Donald Becker may be reached at becker@scyld.com
24
25 Based also on Keith Moore's changes to Don Becker's code, for IBM
26 CCAE support. Drivers merged back together, and shared-memory
27 Socket EA support added, by Ken Raeburn, September 1995.
28
29 ======================================================================*/
30
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/init.h>
34 #include <linux/ptrace.h>
35 #include <linux/slab.h>
36 #include <linux/string.h>
37 #include <linux/timer.h>
38 #include <linux/delay.h>
39 #include <linux/ethtool.h>
40 #include <linux/netdevice.h>
41 #include <../drivers/net/8390.h>
42
43 #include <pcmcia/version.h>
44 #include <pcmcia/cs_types.h>
45 #include <pcmcia/cs.h>
46 #include <pcmcia/cistpl.h>
47 #include <pcmcia/ciscode.h>
48 #include <pcmcia/ds.h>
49 #include <pcmcia/cisreg.h>
50
51 #include <asm/io.h>
52 #include <asm/system.h>
53 #include <asm/byteorder.h>
54 #include <asm/uaccess.h>
55
56 #define PCNET_CMD 0x00
57 #define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
58 #define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
59 #define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
60
61 #define PCNET_START_PG 0x40 /* First page of TX buffer */
62 #define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */
63
64 /* Socket EA cards have a larger packet buffer */
65 #define SOCKET_START_PG 0x01
66 #define SOCKET_STOP_PG 0xff
67
68 #define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */
69
70 static char *if_names[] = { "auto", "10baseT", "10base2"};
71
72 #ifdef PCMCIA_DEBUG
73 static int pc_debug = PCMCIA_DEBUG;
74 module_param(pc_debug, int, 0);
75 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
76 static char *version =
77 "pcnet_cs.c 1.153 2003/11/09 18:53:09 (David Hinds)";
78 #else
79 #define DEBUG(n, args...)
80 #endif
81
82 /*====================================================================*/
83
84 /* Module parameters */
85
86 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
87 MODULE_DESCRIPTION("NE2000 compatible PCMCIA ethernet driver");
88 MODULE_LICENSE("GPL");
89
90 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
91
92 INT_MODULE_PARM(if_port, 1); /* Transceiver type */
93 INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */
94 INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */
95 INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */
96 INT_MODULE_PARM(delay_time, 4); /* in usec */
97 INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */
98 INT_MODULE_PARM(full_duplex, 0); /* full duplex? */
99
100 /* Ugh! Let the user hardwire the hardware address for queer cards */
101 static int hw_addr[6] = { 0, /* ... */ };
102 module_param_array(hw_addr, int, NULL, 0);
103
104 /*====================================================================*/
105
106 static void mii_phy_probe(struct net_device *dev);
107 static void pcnet_config(dev_link_t *link);
108 static void pcnet_release(dev_link_t *link);
109 static int pcnet_event(event_t event, int priority,
110 event_callback_args_t *args);
111 static int pcnet_open(struct net_device *dev);
112 static int pcnet_close(struct net_device *dev);
113 static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
114 static struct ethtool_ops netdev_ethtool_ops;
115 static irqreturn_t ei_irq_wrapper(int irq, void *dev_id, struct pt_regs *regs);
116 static void ei_watchdog(u_long arg);
117 static void pcnet_reset_8390(struct net_device *dev);
118 static int set_config(struct net_device *dev, struct ifmap *map);
119 static int setup_shmem_window(dev_link_t *link, int start_pg,
120 int stop_pg, int cm_offset);
121 static int setup_dma_config(dev_link_t *link, int start_pg,
122 int stop_pg);
123
124 static dev_link_t *pcnet_attach(void);
125 static void pcnet_detach(dev_link_t *);
126
127 static dev_info_t dev_info = "pcnet_cs";
128 static dev_link_t *dev_list;
129
130 /*====================================================================*/
131
132 typedef struct hw_info_t {
133 u_int offset;
134 u_char a0, a1, a2;
135 u_int flags;
136 } hw_info_t;
137
138 #define DELAY_OUTPUT 0x01
139 #define HAS_MISC_REG 0x02
140 #define USE_BIG_BUF 0x04
141 #define HAS_IBM_MISC 0x08
142 #define IS_DL10019 0x10
143 #define IS_DL10022 0x20
144 #define HAS_MII 0x40
145 #define USE_SHMEM 0x80 /* autodetected */
146
147 #define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */
148 #define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */
149 #define MII_PHYID_REV_MASK 0xfffffff0
150 #define MII_PHYID_REG1 0x02
151 #define MII_PHYID_REG2 0x03
152
153 static hw_info_t hw_info[] = {
154 { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
155 { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
156 { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
157 { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
158 DELAY_OUTPUT | HAS_IBM_MISC },
159 { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
160 { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
161 { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
162 { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
163 { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
164 { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
165 { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
166 HAS_MISC_REG | HAS_IBM_MISC },
167 { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
168 { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
169 { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
170 HAS_MISC_REG | HAS_IBM_MISC },
171 { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
172 HAS_MISC_REG | HAS_IBM_MISC },
173 { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
174 HAS_MISC_REG | HAS_IBM_MISC },
175 { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
176 HAS_MISC_REG | HAS_IBM_MISC },
177 { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
178 HAS_MISC_REG | HAS_IBM_MISC },
179 { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
180 HAS_MISC_REG | HAS_IBM_MISC },
181 { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
182 HAS_MISC_REG | HAS_IBM_MISC },
183 { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
184 HAS_MISC_REG | HAS_IBM_MISC },
185 { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
186 HAS_MISC_REG | HAS_IBM_MISC },
187 { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
188 HAS_MISC_REG | HAS_IBM_MISC },
189 { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
190 { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
191 { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
192 HAS_MISC_REG | HAS_IBM_MISC },
193 { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
194 HAS_MISC_REG | HAS_IBM_MISC },
195 { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
196 { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
197 { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
198 { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
199 { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
200 HAS_MISC_REG | HAS_IBM_MISC },
201 { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
202 HAS_MISC_REG | HAS_IBM_MISC },
203 { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
204 { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
205 { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
206 { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
207 DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
208 { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
209 { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
210 { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
211 { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
212 { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 }
213 };
214
215 #define NR_INFO (sizeof(hw_info)/sizeof(hw_info_t))
216
217 static hw_info_t default_info = { 0, 0, 0, 0, 0 };
218 static hw_info_t dl10019_info = { 0, 0, 0, 0, IS_DL10019|HAS_MII };
219 static hw_info_t dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII };
220
221 typedef struct pcnet_dev_t {
222 dev_link_t link;
223 dev_node_t node;
224 u_int flags;
225 void __iomem *base;
226 struct timer_list watchdog;
227 int stale, fast_poll;
228 u_char phy_id;
229 u_char eth_phy, pna_phy;
230 u_short link_status;
231 u_long mii_reset;
232 } pcnet_dev_t;
233
234 static inline pcnet_dev_t *PRIV(struct net_device *dev)
235 {
236 char *p = netdev_priv(dev);
237 return (pcnet_dev_t *)(p + sizeof(struct ei_device));
238 }
239
240 /*======================================================================
241
242 pcnet_attach() creates an "instance" of the driver, allocating
243 local data structures for one device. The device is registered
244 with Card Services.
245
246 ======================================================================*/
247
248 static dev_link_t *pcnet_attach(void)
249 {
250 pcnet_dev_t *info;
251 dev_link_t *link;
252 struct net_device *dev;
253 client_reg_t client_reg;
254 int ret;
255
256 DEBUG(0, "pcnet_attach()\n");
257
258 /* Create new ethernet device */
259 dev = __alloc_ei_netdev(sizeof(pcnet_dev_t));
260 if (!dev) return NULL;
261 info = PRIV(dev);
262 link = &info->link;
263 link->priv = dev;
264
265 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
266 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
267 link->conf.Attributes = CONF_ENABLE_IRQ;
268 link->conf.IntType = INT_MEMORY_AND_IO;
269
270 SET_MODULE_OWNER(dev);
271 dev->open = &pcnet_open;
272 dev->stop = &pcnet_close;
273 dev->set_config = &set_config;
274
275 /* Register with Card Services */
276 link->next = dev_list;
277 dev_list = link;
278 client_reg.dev_info = &dev_info;
279 client_reg.EventMask =
280 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
281 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
282 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
283 client_reg.event_handler = &pcnet_event;
284 client_reg.Version = 0x0210;
285 client_reg.event_callback_args.client_data = link;
286 ret = pcmcia_register_client(&link->handle, &client_reg);
287 if (ret != CS_SUCCESS) {
288 cs_error(link->handle, RegisterClient, ret);
289 pcnet_detach(link);
290 return NULL;
291 }
292
293 return link;
294 } /* pcnet_attach */
295
296 /*======================================================================
297
298 This deletes a driver "instance". The device is de-registered
299 with Card Services. If it has been released, all local data
300 structures are freed. Otherwise, the structures will be freed
301 when the device is released.
302
303 ======================================================================*/
304
305 static void pcnet_detach(dev_link_t *link)
306 {
307 struct net_device *dev = link->priv;
308 dev_link_t **linkp;
309
310 DEBUG(0, "pcnet_detach(0x%p)\n", link);
311
312 /* Locate device structure */
313 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
314 if (*linkp == link) break;
315 if (*linkp == NULL)
316 return;
317
318 if (link->dev)
319 unregister_netdev(dev);
320
321 if (link->state & DEV_CONFIG)
322 pcnet_release(link);
323
324 if (link->handle)
325 pcmcia_deregister_client(link->handle);
326
327 /* Unlink device structure, free bits */
328 *linkp = link->next;
329 free_netdev(dev);
330 } /* pcnet_detach */
331
332 /*======================================================================
333
334 This probes for a card's hardware address, for card types that
335 encode this information in their CIS.
336
337 ======================================================================*/
338
339 static hw_info_t *get_hwinfo(dev_link_t *link)
340 {
341 struct net_device *dev = link->priv;
342 win_req_t req;
343 memreq_t mem;
344 u_char __iomem *base, *virt;
345 int i, j;
346
347 /* Allocate a small memory window */
348 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
349 req.Base = 0; req.Size = 0;
350 req.AccessSpeed = 0;
351 i = pcmcia_request_window(&link->handle, &req, &link->win);
352 if (i != CS_SUCCESS) {
353 cs_error(link->handle, RequestWindow, i);
354 return NULL;
355 }
356
357 virt = ioremap(req.Base, req.Size);
358 mem.Page = 0;
359 for (i = 0; i < NR_INFO; i++) {
360 mem.CardOffset = hw_info[i].offset & ~(req.Size-1);
361 pcmcia_map_mem_page(link->win, &mem);
362 base = &virt[hw_info[i].offset & (req.Size-1)];
363 if ((readb(base+0) == hw_info[i].a0) &&
364 (readb(base+2) == hw_info[i].a1) &&
365 (readb(base+4) == hw_info[i].a2))
366 break;
367 }
368 if (i < NR_INFO) {
369 for (j = 0; j < 6; j++)
370 dev->dev_addr[j] = readb(base + (j<<1));
371 }
372
373 iounmap(virt);
374 j = pcmcia_release_window(link->win);
375 if (j != CS_SUCCESS)
376 cs_error(link->handle, ReleaseWindow, j);
377 return (i < NR_INFO) ? hw_info+i : NULL;
378 } /* get_hwinfo */
379
380 /*======================================================================
381
382 This probes for a card's hardware address by reading the PROM.
383 It checks the address against a list of known types, then falls
384 back to a simple NE2000 clone signature check.
385
386 ======================================================================*/
387
388 static hw_info_t *get_prom(dev_link_t *link)
389 {
390 struct net_device *dev = link->priv;
391 kio_addr_t ioaddr = dev->base_addr;
392 u_char prom[32];
393 int i, j;
394
395 /* This is lifted straight from drivers/net/ne.c */
396 struct {
397 u_char value, offset;
398 } program_seq[] = {
399 {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
400 {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */
401 {0x00, EN0_RCNTLO}, /* Clear the count regs. */
402 {0x00, EN0_RCNTHI},
403 {0x00, EN0_IMR}, /* Mask completion irq. */
404 {0xFF, EN0_ISR},
405 {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
406 {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
407 {32, EN0_RCNTLO},
408 {0x00, EN0_RCNTHI},
409 {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
410 {0x00, EN0_RSARHI},
411 {E8390_RREAD+E8390_START, E8390_CMD},
412 };
413
414 pcnet_reset_8390(dev);
415 mdelay(10);
416
417 for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++)
418 outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
419
420 for (i = 0; i < 32; i++)
421 prom[i] = inb(ioaddr + PCNET_DATAPORT);
422 for (i = 0; i < NR_INFO; i++) {
423 if ((prom[0] == hw_info[i].a0) &&
424 (prom[2] == hw_info[i].a1) &&
425 (prom[4] == hw_info[i].a2))
426 break;
427 }
428 if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
429 for (j = 0; j < 6; j++)
430 dev->dev_addr[j] = prom[j<<1];
431 return (i < NR_INFO) ? hw_info+i : &default_info;
432 }
433 return NULL;
434 } /* get_prom */
435
436 /*======================================================================
437
438 For DL10019 based cards, like the Linksys EtherFast
439
440 ======================================================================*/
441
442 static hw_info_t *get_dl10019(dev_link_t *link)
443 {
444 struct net_device *dev = link->priv;
445 int i;
446 u_char sum;
447
448 for (sum = 0, i = 0x14; i < 0x1c; i++)
449 sum += inb_p(dev->base_addr + i);
450 if (sum != 0xff)
451 return NULL;
452 for (i = 0; i < 6; i++)
453 dev->dev_addr[i] = inb_p(dev->base_addr + 0x14 + i);
454 i = inb(dev->base_addr + 0x1f);
455 return ((i == 0x91)||(i == 0x99)) ? &dl10022_info : &dl10019_info;
456 }
457
458 /*======================================================================
459
460 For Asix AX88190 based cards
461
462 ======================================================================*/
463
464 static hw_info_t *get_ax88190(dev_link_t *link)
465 {
466 struct net_device *dev = link->priv;
467 kio_addr_t ioaddr = dev->base_addr;
468 int i, j;
469
470 /* Not much of a test, but the alternatives are messy */
471 if (link->conf.ConfigBase != 0x03c0)
472 return NULL;
473
474 outb_p(0x01, ioaddr + EN0_DCFG); /* Set word-wide access. */
475 outb_p(0x00, ioaddr + EN0_RSARLO); /* DMA starting at 0x0400. */
476 outb_p(0x04, ioaddr + EN0_RSARHI);
477 outb_p(E8390_RREAD+E8390_START, ioaddr + E8390_CMD);
478
479 for (i = 0; i < 6; i += 2) {
480 j = inw(ioaddr + PCNET_DATAPORT);
481 dev->dev_addr[i] = j & 0xff;
482 dev->dev_addr[i+1] = j >> 8;
483 }
484 printk(KERN_NOTICE "pcnet_cs: this is an AX88190 card!\n");
485 printk(KERN_NOTICE "pcnet_cs: use axnet_cs instead.\n");
486 return NULL;
487 }
488
489 /*======================================================================
490
491 This should be totally unnecessary... but when we can't figure
492 out the hardware address any other way, we'll let the user hard
493 wire it when the module is initialized.
494
495 ======================================================================*/
496
497 static hw_info_t *get_hwired(dev_link_t *link)
498 {
499 struct net_device *dev = link->priv;
500 int i;
501
502 for (i = 0; i < 6; i++)
503 if (hw_addr[i] != 0) break;
504 if (i == 6)
505 return NULL;
506
507 for (i = 0; i < 6; i++)
508 dev->dev_addr[i] = hw_addr[i];
509
510 return &default_info;
511 } /* get_hwired */
512
513 /*======================================================================
514
515 pcnet_config() is scheduled to run after a CARD_INSERTION event
516 is received, to configure the PCMCIA socket, and to make the
517 ethernet device available to the system.
518
519 ======================================================================*/
520
521 #define CS_CHECK(fn, ret) \
522 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
523
524 static int try_io_port(dev_link_t *link)
525 {
526 int j, ret;
527 if (link->io.NumPorts1 == 32) {
528 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
529 if (link->io.NumPorts2 > 0) {
530 /* for master/slave multifunction cards */
531 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
532 link->irq.Attributes =
533 IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
534 }
535 } else {
536 /* This should be two 16-port windows */
537 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
538 link->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
539 }
540 if (link->io.BasePort1 == 0) {
541 link->io.IOAddrLines = 16;
542 for (j = 0; j < 0x400; j += 0x20) {
543 link->io.BasePort1 = j ^ 0x300;
544 link->io.BasePort2 = (j ^ 0x300) + 0x10;
545 ret = pcmcia_request_io(link->handle, &link->io);
546 if (ret == CS_SUCCESS) return ret;
547 }
548 return ret;
549 } else {
550 return pcmcia_request_io(link->handle, &link->io);
551 }
552 }
553
554 static void pcnet_config(dev_link_t *link)
555 {
556 client_handle_t handle = link->handle;
557 struct net_device *dev = link->priv;
558 pcnet_dev_t *info = PRIV(dev);
559 tuple_t tuple;
560 cisparse_t parse;
561 int i, last_ret, last_fn, start_pg, stop_pg, cm_offset;
562 int manfid = 0, prodid = 0, has_shmem = 0;
563 u_short buf[64];
564 config_info_t conf;
565 hw_info_t *hw_info;
566
567 DEBUG(0, "pcnet_config(0x%p)\n", link);
568
569 tuple.Attributes = 0;
570 tuple.TupleData = (cisdata_t *)buf;
571 tuple.TupleDataMax = sizeof(buf);
572 tuple.TupleOffset = 0;
573 tuple.DesiredTuple = CISTPL_CONFIG;
574 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
575 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
576 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
577 link->conf.ConfigBase = parse.config.base;
578 link->conf.Present = parse.config.rmask[0];
579
580 /* Configure card */
581 link->state |= DEV_CONFIG;
582
583 /* Look up current Vcc */
584 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
585 link->conf.Vcc = conf.Vcc;
586
587 tuple.DesiredTuple = CISTPL_MANFID;
588 tuple.Attributes = TUPLE_RETURN_COMMON;
589 if ((pcmcia_get_first_tuple(handle, &tuple) == CS_SUCCESS) &&
590 (pcmcia_get_tuple_data(handle, &tuple) == CS_SUCCESS)) {
591 manfid = le16_to_cpu(buf[0]);
592 prodid = le16_to_cpu(buf[1]);
593 }
594
595 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
596 tuple.Attributes = 0;
597 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
598 while (last_ret == CS_SUCCESS) {
599 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
600 cistpl_io_t *io = &(parse.cftable_entry.io);
601
602 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
603 pcmcia_parse_tuple(handle, &tuple, &parse) != 0 ||
604 cfg->index == 0 || cfg->io.nwin == 0)
605 goto next_entry;
606
607 link->conf.ConfigIndex = cfg->index;
608 /* For multifunction cards, by convention, we configure the
609 network function with window 0, and serial with window 1 */
610 if (io->nwin > 1) {
611 i = (io->win[1].len > io->win[0].len);
612 link->io.BasePort2 = io->win[1-i].base;
613 link->io.NumPorts2 = io->win[1-i].len;
614 } else {
615 i = link->io.NumPorts2 = 0;
616 }
617 has_shmem = ((cfg->mem.nwin == 1) &&
618 (cfg->mem.win[0].len >= 0x4000));
619 link->io.BasePort1 = io->win[i].base;
620 link->io.NumPorts1 = io->win[i].len;
621 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
622 if (link->io.NumPorts1 + link->io.NumPorts2 >= 32) {
623 last_ret = try_io_port(link);
624 if (last_ret == CS_SUCCESS) break;
625 }
626 next_entry:
627 last_ret = pcmcia_get_next_tuple(handle, &tuple);
628 }
629 if (last_ret != CS_SUCCESS) {
630 cs_error(handle, RequestIO, last_ret);
631 goto failed;
632 }
633
634 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
635
636 if (link->io.NumPorts2 == 8) {
637 link->conf.Attributes |= CONF_ENABLE_SPKR;
638 link->conf.Status = CCSR_AUDIO_ENA;
639 }
640 if ((manfid == MANFID_IBM) &&
641 (prodid == PRODID_IBM_HOME_AND_AWAY))
642 link->conf.ConfigIndex |= 0x10;
643
644 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
645 dev->irq = link->irq.AssignedIRQ;
646 dev->base_addr = link->io.BasePort1;
647 if (info->flags & HAS_MISC_REG) {
648 if ((if_port == 1) || (if_port == 2))
649 dev->if_port = if_port;
650 else
651 printk(KERN_NOTICE "pcnet_cs: invalid if_port requested\n");
652 } else {
653 dev->if_port = 0;
654 }
655
656 hw_info = get_hwinfo(link);
657 if (hw_info == NULL)
658 hw_info = get_prom(link);
659 if (hw_info == NULL)
660 hw_info = get_dl10019(link);
661 if (hw_info == NULL)
662 hw_info = get_ax88190(link);
663 if (hw_info == NULL)
664 hw_info = get_hwired(link);
665
666 if (hw_info == NULL) {
667 printk(KERN_NOTICE "pcnet_cs: unable to read hardware net"
668 " address for io base %#3lx\n", dev->base_addr);
669 goto failed;
670 }
671
672 info->flags = hw_info->flags;
673 /* Check for user overrides */
674 info->flags |= (delay_output) ? DELAY_OUTPUT : 0;
675 if ((manfid == MANFID_SOCKET) &&
676 ((prodid == PRODID_SOCKET_LPE) ||
677 (prodid == PRODID_SOCKET_LPE_CF) ||
678 (prodid == PRODID_SOCKET_EIO)))
679 info->flags &= ~USE_BIG_BUF;
680 if (!use_big_buf)
681 info->flags &= ~USE_BIG_BUF;
682
683 if (info->flags & USE_BIG_BUF) {
684 start_pg = SOCKET_START_PG;
685 stop_pg = SOCKET_STOP_PG;
686 cm_offset = 0x10000;
687 } else {
688 start_pg = PCNET_START_PG;
689 stop_pg = PCNET_STOP_PG;
690 cm_offset = 0;
691 }
692
693 /* has_shmem is ignored if use_shmem != -1 */
694 if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) ||
695 (setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0))
696 setup_dma_config(link, start_pg, stop_pg);
697
698 ei_status.name = "NE2000";
699 ei_status.word16 = 1;
700 ei_status.reset_8390 = &pcnet_reset_8390;
701
702 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
703
704 if (info->flags & (IS_DL10019|IS_DL10022)) {
705 u_char id = inb(dev->base_addr + 0x1a);
706 dev->do_ioctl = &ei_ioctl;
707 mii_phy_probe(dev);
708 if ((id == 0x30) && !info->pna_phy && (info->eth_phy == 4))
709 info->eth_phy = 0;
710 }
711
712 link->dev = &info->node;
713 link->state &= ~DEV_CONFIG_PENDING;
714 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
715
716 #ifdef CONFIG_NET_POLL_CONTROLLER
717 dev->poll_controller = ei_poll;
718 #endif
719
720 if (register_netdev(dev) != 0) {
721 printk(KERN_NOTICE "pcnet_cs: register_netdev() failed\n");
722 link->dev = NULL;
723 goto failed;
724 }
725
726 strcpy(info->node.dev_name, dev->name);
727
728 if (info->flags & (IS_DL10019|IS_DL10022)) {
729 u_char id = inb(dev->base_addr + 0x1a);
730 printk(KERN_INFO "%s: NE2000 (DL100%d rev %02x): ",
731 dev->name, ((info->flags & IS_DL10022) ? 22 : 19), id);
732 if (info->pna_phy)
733 printk("PNA, ");
734 } else {
735 printk(KERN_INFO "%s: NE2000 Compatible: ", dev->name);
736 }
737 printk("io %#3lx, irq %d,", dev->base_addr, dev->irq);
738 if (info->flags & USE_SHMEM)
739 printk (" mem %#5lx,", dev->mem_start);
740 if (info->flags & HAS_MISC_REG)
741 printk(" %s xcvr,", if_names[dev->if_port]);
742 printk(" hw_addr ");
743 for (i = 0; i < 6; i++)
744 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
745 return;
746
747 cs_failed:
748 cs_error(link->handle, last_fn, last_ret);
749 failed:
750 pcnet_release(link);
751 link->state &= ~DEV_CONFIG_PENDING;
752 return;
753 } /* pcnet_config */
754
755 /*======================================================================
756
757 After a card is removed, pcnet_release() will unregister the net
758 device, and release the PCMCIA configuration. If the device is
759 still open, this will be postponed until it is closed.
760
761 ======================================================================*/
762
763 static void pcnet_release(dev_link_t *link)
764 {
765 pcnet_dev_t *info = PRIV(link->priv);
766
767 DEBUG(0, "pcnet_release(0x%p)\n", link);
768
769 if (info->flags & USE_SHMEM) {
770 iounmap(info->base);
771 pcmcia_release_window(link->win);
772 }
773 pcmcia_release_configuration(link->handle);
774 pcmcia_release_io(link->handle, &link->io);
775 pcmcia_release_irq(link->handle, &link->irq);
776
777 link->state &= ~DEV_CONFIG;
778 }
779
780 /*======================================================================
781
782 The card status event handler. Mostly, this schedules other
783 stuff to run after an event is received. A CARD_REMOVAL event
784 also sets some flags to discourage the net drivers from trying
785 to talk to the card any more.
786
787 ======================================================================*/
788
789 static int pcnet_event(event_t event, int priority,
790 event_callback_args_t *args)
791 {
792 dev_link_t *link = args->client_data;
793 struct net_device *dev = link->priv;
794
795 DEBUG(2, "pcnet_event(0x%06x)\n", event);
796
797 switch (event) {
798 case CS_EVENT_CARD_REMOVAL:
799 link->state &= ~DEV_PRESENT;
800 if (link->state & DEV_CONFIG)
801 netif_device_detach(dev);
802 break;
803 case CS_EVENT_CARD_INSERTION:
804 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
805 pcnet_config(link);
806 break;
807 case CS_EVENT_PM_SUSPEND:
808 link->state |= DEV_SUSPEND;
809 /* Fall through... */
810 case CS_EVENT_RESET_PHYSICAL:
811 if (link->state & DEV_CONFIG) {
812 if (link->open)
813 netif_device_detach(dev);
814 pcmcia_release_configuration(link->handle);
815 }
816 break;
817 case CS_EVENT_PM_RESUME:
818 link->state &= ~DEV_SUSPEND;
819 /* Fall through... */
820 case CS_EVENT_CARD_RESET:
821 if (link->state & DEV_CONFIG) {
822 pcmcia_request_configuration(link->handle, &link->conf);
823 if (link->open) {
824 pcnet_reset_8390(dev);
825 NS8390_init(dev, 1);
826 netif_device_attach(dev);
827 }
828 }
829 break;
830 }
831 return 0;
832 } /* pcnet_event */
833
834 /*======================================================================
835
836 MII interface support for DL10019 and DL10022 based cards
837
838 On the DL10019, the MII IO direction bit is 0x10; on the DL10022
839 it is 0x20. Setting both bits seems to work on both card types.
840
841 ======================================================================*/
842
843 #define DLINK_GPIO 0x1c
844 #define DLINK_DIAG 0x1d
845 #define DLINK_EEPROM 0x1e
846
847 #define MDIO_SHIFT_CLK 0x80
848 #define MDIO_DATA_OUT 0x40
849 #define MDIO_DIR_WRITE 0x30
850 #define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
851 #define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
852 #define MDIO_DATA_READ 0x10
853 #define MDIO_MASK 0x0f
854
855 static void mdio_sync(kio_addr_t addr)
856 {
857 int bits, mask = inb(addr) & MDIO_MASK;
858 for (bits = 0; bits < 32; bits++) {
859 outb(mask | MDIO_DATA_WRITE1, addr);
860 outb(mask | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
861 }
862 }
863
864 static int mdio_read(kio_addr_t addr, int phy_id, int loc)
865 {
866 u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
867 int i, retval = 0, mask = inb(addr) & MDIO_MASK;
868
869 mdio_sync(addr);
870 for (i = 13; i >= 0; i--) {
871 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
872 outb(mask | dat, addr);
873 outb(mask | dat | MDIO_SHIFT_CLK, addr);
874 }
875 for (i = 19; i > 0; i--) {
876 outb(mask, addr);
877 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
878 outb(mask | MDIO_SHIFT_CLK, addr);
879 }
880 return (retval>>1) & 0xffff;
881 }
882
883 static void mdio_write(kio_addr_t addr, int phy_id, int loc, int value)
884 {
885 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
886 int i, mask = inb(addr) & MDIO_MASK;
887
888 mdio_sync(addr);
889 for (i = 31; i >= 0; i--) {
890 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
891 outb(mask | dat, addr);
892 outb(mask | dat | MDIO_SHIFT_CLK, addr);
893 }
894 for (i = 1; i >= 0; i--) {
895 outb(mask, addr);
896 outb(mask | MDIO_SHIFT_CLK, addr);
897 }
898 }
899
900 static void mdio_reset(kio_addr_t addr, int phy_id)
901 {
902 outb_p(0x08, addr);
903 outb_p(0x0c, addr);
904 outb_p(0x08, addr);
905 outb_p(0x0c, addr);
906 outb_p(0x00, addr);
907 }
908
909 /*======================================================================
910
911 EEPROM access routines for DL10019 and DL10022 based cards
912
913 ======================================================================*/
914
915 #define EE_EEP 0x40
916 #define EE_ASIC 0x10
917 #define EE_CS 0x08
918 #define EE_CK 0x04
919 #define EE_DO 0x02
920 #define EE_DI 0x01
921 #define EE_ADOT 0x01 /* DataOut for ASIC */
922 #define EE_READ_CMD 0x06
923
924 #define DL19FDUPLX 0x0400 /* DL10019 Full duplex mode */
925
926 static int read_eeprom(kio_addr_t ioaddr, int location)
927 {
928 int i, retval = 0;
929 kio_addr_t ee_addr = ioaddr + DLINK_EEPROM;
930 int read_cmd = location | (EE_READ_CMD << 8);
931
932 outb(0, ee_addr);
933 outb(EE_EEP|EE_CS, ee_addr);
934
935 /* Shift the read command bits out. */
936 for (i = 10; i >= 0; i--) {
937 short dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
938 outb_p(EE_EEP|EE_CS|dataval, ee_addr);
939 outb_p(EE_EEP|EE_CS|dataval|EE_CK, ee_addr);
940 }
941 outb(EE_EEP|EE_CS, ee_addr);
942
943 for (i = 16; i > 0; i--) {
944 outb_p(EE_EEP|EE_CS | EE_CK, ee_addr);
945 retval = (retval << 1) | ((inb(ee_addr) & EE_DI) ? 1 : 0);
946 outb_p(EE_EEP|EE_CS, ee_addr);
947 }
948
949 /* Terminate the EEPROM access. */
950 outb(0, ee_addr);
951 return retval;
952 }
953
954 /*
955 The internal ASIC registers can be changed by EEPROM READ access
956 with EE_ASIC bit set.
957 In ASIC mode, EE_ADOT is used to output the data to the ASIC.
958 */
959
960 static void write_asic(kio_addr_t ioaddr, int location, short asic_data)
961 {
962 int i;
963 kio_addr_t ee_addr = ioaddr + DLINK_EEPROM;
964 short dataval;
965 int read_cmd = location | (EE_READ_CMD << 8);
966
967 asic_data |= read_eeprom(ioaddr, location);
968
969 outb(0, ee_addr);
970 outb(EE_ASIC|EE_CS|EE_DI, ee_addr);
971
972 read_cmd = read_cmd >> 1;
973
974 /* Shift the read command bits out. */
975 for (i = 9; i >= 0; i--) {
976 dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
977 outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
978 outb_p(EE_ASIC|EE_CS|EE_DI|dataval|EE_CK, ee_addr);
979 outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
980 }
981 // sync
982 outb(EE_ASIC|EE_CS, ee_addr);
983 outb(EE_ASIC|EE_CS|EE_CK, ee_addr);
984 outb(EE_ASIC|EE_CS, ee_addr);
985
986 for (i = 15; i >= 0; i--) {
987 dataval = (asic_data & (1 << i)) ? EE_ADOT : 0;
988 outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
989 outb_p(EE_ASIC|EE_CS|dataval|EE_CK, ee_addr);
990 outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
991 }
992
993 /* Terminate the ASIC access. */
994 outb(EE_ASIC|EE_DI, ee_addr);
995 outb(EE_ASIC|EE_DI| EE_CK, ee_addr);
996 outb(EE_ASIC|EE_DI, ee_addr);
997
998 outb(0, ee_addr);
999 }
1000
1001 /*====================================================================*/
1002
1003 static void set_misc_reg(struct net_device *dev)
1004 {
1005 kio_addr_t nic_base = dev->base_addr;
1006 pcnet_dev_t *info = PRIV(dev);
1007 u_char tmp;
1008
1009 if (info->flags & HAS_MISC_REG) {
1010 tmp = inb_p(nic_base + PCNET_MISC) & ~3;
1011 if (dev->if_port == 2)
1012 tmp |= 1;
1013 if (info->flags & USE_BIG_BUF)
1014 tmp |= 2;
1015 if (info->flags & HAS_IBM_MISC)
1016 tmp |= 8;
1017 outb_p(tmp, nic_base + PCNET_MISC);
1018 }
1019 if (info->flags & IS_DL10022) {
1020 if (info->flags & HAS_MII) {
1021 mdio_reset(nic_base + DLINK_GPIO, info->eth_phy);
1022 /* Restart MII autonegotiation */
1023 mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
1024 mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
1025 info->mii_reset = jiffies;
1026 } else {
1027 outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG);
1028 }
1029 }
1030 }
1031
1032 /*====================================================================*/
1033
1034 static void mii_phy_probe(struct net_device *dev)
1035 {
1036 pcnet_dev_t *info = PRIV(dev);
1037 kio_addr_t mii_addr = dev->base_addr + DLINK_GPIO;
1038 int i;
1039 u_int tmp, phyid;
1040
1041 for (i = 31; i >= 0; i--) {
1042 tmp = mdio_read(mii_addr, i, 1);
1043 if ((tmp == 0) || (tmp == 0xffff))
1044 continue;
1045 tmp = mdio_read(mii_addr, i, MII_PHYID_REG1);
1046 phyid = tmp << 16;
1047 phyid |= mdio_read(mii_addr, i, MII_PHYID_REG2);
1048 phyid &= MII_PHYID_REV_MASK;
1049 DEBUG(0, "%s: MII at %d is 0x%08x\n", dev->name, i, phyid);
1050 if (phyid == AM79C9XX_HOME_PHY) {
1051 info->pna_phy = i;
1052 } else if (phyid != AM79C9XX_ETH_PHY) {
1053 info->eth_phy = i;
1054 }
1055 }
1056 }
1057
1058 static int pcnet_open(struct net_device *dev)
1059 {
1060 pcnet_dev_t *info = PRIV(dev);
1061 dev_link_t *link = &info->link;
1062
1063 DEBUG(2, "pcnet_open('%s')\n", dev->name);
1064
1065 if (!DEV_OK(link))
1066 return -ENODEV;
1067
1068 link->open++;
1069
1070 set_misc_reg(dev);
1071 request_irq(dev->irq, ei_irq_wrapper, SA_SHIRQ, dev_info, dev);
1072
1073 info->phy_id = info->eth_phy;
1074 info->link_status = 0x00;
1075 init_timer(&info->watchdog);
1076 info->watchdog.function = &ei_watchdog;
1077 info->watchdog.data = (u_long)dev;
1078 info->watchdog.expires = jiffies + HZ;
1079 add_timer(&info->watchdog);
1080
1081 return ei_open(dev);
1082 } /* pcnet_open */
1083
1084 /*====================================================================*/
1085
1086 static int pcnet_close(struct net_device *dev)
1087 {
1088 pcnet_dev_t *info = PRIV(dev);
1089 dev_link_t *link = &info->link;
1090
1091 DEBUG(2, "pcnet_close('%s')\n", dev->name);
1092
1093 ei_close(dev);
1094 free_irq(dev->irq, dev);
1095
1096 link->open--;
1097 netif_stop_queue(dev);
1098 del_timer_sync(&info->watchdog);
1099
1100 return 0;
1101 } /* pcnet_close */
1102
1103 /*======================================================================
1104
1105 Hard reset the card. This used to pause for the same period that
1106 a 8390 reset command required, but that shouldn't be necessary.
1107
1108 ======================================================================*/
1109
1110 static void pcnet_reset_8390(struct net_device *dev)
1111 {
1112 kio_addr_t nic_base = dev->base_addr;
1113 int i;
1114
1115 ei_status.txing = ei_status.dmaing = 0;
1116
1117 outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD);
1118
1119 outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET);
1120
1121 for (i = 0; i < 100; i++) {
1122 if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0)
1123 break;
1124 udelay(100);
1125 }
1126 outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */
1127
1128 if (i == 100)
1129 printk(KERN_ERR "%s: pcnet_reset_8390() did not complete.\n",
1130 dev->name);
1131 set_misc_reg(dev);
1132
1133 } /* pcnet_reset_8390 */
1134
1135 /*====================================================================*/
1136
1137 static int set_config(struct net_device *dev, struct ifmap *map)
1138 {
1139 pcnet_dev_t *info = PRIV(dev);
1140 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
1141 if (!(info->flags & HAS_MISC_REG))
1142 return -EOPNOTSUPP;
1143 else if ((map->port < 1) || (map->port > 2))
1144 return -EINVAL;
1145 dev->if_port = map->port;
1146 printk(KERN_INFO "%s: switched to %s port\n",
1147 dev->name, if_names[dev->if_port]);
1148 NS8390_init(dev, 1);
1149 }
1150 return 0;
1151 }
1152
1153 /*====================================================================*/
1154
1155 static irqreturn_t ei_irq_wrapper(int irq, void *dev_id, struct pt_regs *regs)
1156 {
1157 struct net_device *dev = dev_id;
1158 pcnet_dev_t *info = PRIV(dev);
1159 irqreturn_t ret = ei_interrupt(irq, dev_id, regs);
1160
1161 if (ret == IRQ_HANDLED)
1162 info->stale = 0;
1163 return ret;
1164 }
1165
1166 static void ei_watchdog(u_long arg)
1167 {
1168 struct net_device *dev = (struct net_device *)arg;
1169 pcnet_dev_t *info = PRIV(dev);
1170 kio_addr_t nic_base = dev->base_addr;
1171 kio_addr_t mii_addr = nic_base + DLINK_GPIO;
1172 u_short link;
1173
1174 if (!netif_device_present(dev)) goto reschedule;
1175
1176 /* Check for pending interrupt with expired latency timer: with
1177 this, we can limp along even if the interrupt is blocked */
1178 outb_p(E8390_NODMA+E8390_PAGE0, nic_base + E8390_CMD);
1179 if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) {
1180 if (!info->fast_poll)
1181 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name);
1182 ei_irq_wrapper(dev->irq, dev, NULL);
1183 info->fast_poll = HZ;
1184 }
1185 if (info->fast_poll) {
1186 info->fast_poll--;
1187 info->watchdog.expires = jiffies + 1;
1188 add_timer(&info->watchdog);
1189 return;
1190 }
1191
1192 if (!(info->flags & HAS_MII))
1193 goto reschedule;
1194
1195 mdio_read(mii_addr, info->phy_id, 1);
1196 link = mdio_read(mii_addr, info->phy_id, 1);
1197 if (!link || (link == 0xffff)) {
1198 if (info->eth_phy) {
1199 info->phy_id = info->eth_phy = 0;
1200 } else {
1201 printk(KERN_INFO "%s: MII is missing!\n", dev->name);
1202 info->flags &= ~HAS_MII;
1203 }
1204 goto reschedule;
1205 }
1206
1207 link &= 0x0004;
1208 if (link != info->link_status) {
1209 u_short p = mdio_read(mii_addr, info->phy_id, 5);
1210 printk(KERN_INFO "%s: %s link beat\n", dev->name,
1211 (link) ? "found" : "lost");
1212 if (link && (info->flags & IS_DL10022)) {
1213 /* Disable collision detection on full duplex links */
1214 outb((p & 0x0140) ? 4 : 0, nic_base + DLINK_DIAG);
1215 } else if (link && (info->flags & IS_DL10019)) {
1216 /* Disable collision detection on full duplex links */
1217 write_asic(dev->base_addr, 4, (p & 0x140) ? DL19FDUPLX : 0);
1218 }
1219 if (link) {
1220 if (info->phy_id == info->eth_phy) {
1221 if (p)
1222 printk(KERN_INFO "%s: autonegotiation complete: "
1223 "%sbaseT-%cD selected\n", dev->name,
1224 ((p & 0x0180) ? "100" : "10"),
1225 ((p & 0x0140) ? 'F' : 'H'));
1226 else
1227 printk(KERN_INFO "%s: link partner did not "
1228 "autonegotiate\n", dev->name);
1229 }
1230 NS8390_init(dev, 1);
1231 }
1232 info->link_status = link;
1233 }
1234 if (info->pna_phy && time_after(jiffies, info->mii_reset + 6*HZ)) {
1235 link = mdio_read(mii_addr, info->eth_phy, 1) & 0x0004;
1236 if (((info->phy_id == info->pna_phy) && link) ||
1237 ((info->phy_id != info->pna_phy) && !link)) {
1238 /* isolate this MII and try flipping to the other one */
1239 mdio_write(mii_addr, info->phy_id, 0, 0x0400);
1240 info->phy_id ^= info->pna_phy ^ info->eth_phy;
1241 printk(KERN_INFO "%s: switched to %s transceiver\n", dev->name,
1242 (info->phy_id == info->eth_phy) ? "ethernet" : "PNA");
1243 mdio_write(mii_addr, info->phy_id, 0,
1244 (info->phy_id == info->eth_phy) ? 0x1000 : 0);
1245 info->link_status = 0;
1246 info->mii_reset = jiffies;
1247 }
1248 }
1249
1250 reschedule:
1251 info->watchdog.expires = jiffies + HZ;
1252 add_timer(&info->watchdog);
1253 }
1254
1255 /*====================================================================*/
1256
1257 static void netdev_get_drvinfo(struct net_device *dev,
1258 struct ethtool_drvinfo *info)
1259 {
1260 strcpy(info->driver, "pcnet_cs");
1261 }
1262
1263 static struct ethtool_ops netdev_ethtool_ops = {
1264 .get_drvinfo = netdev_get_drvinfo,
1265 };
1266
1267 /*====================================================================*/
1268
1269
1270 static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1271 {
1272 pcnet_dev_t *info = PRIV(dev);
1273 u16 *data = (u16 *)&rq->ifr_ifru;
1274 kio_addr_t mii_addr = dev->base_addr + DLINK_GPIO;
1275 switch (cmd) {
1276 case SIOCGMIIPHY:
1277 data[0] = info->phy_id;
1278 case SIOCGMIIREG: /* Read MII PHY register. */
1279 data[3] = mdio_read(mii_addr, data[0], data[1] & 0x1f);
1280 return 0;
1281 case SIOCSMIIREG: /* Write MII PHY register. */
1282 if (!capable(CAP_NET_ADMIN))
1283 return -EPERM;
1284 mdio_write(mii_addr, data[0], data[1] & 0x1f, data[2]);
1285 return 0;
1286 }
1287 return -EOPNOTSUPP;
1288 }
1289
1290 /*====================================================================*/
1291
1292 static void dma_get_8390_hdr(struct net_device *dev,
1293 struct e8390_pkt_hdr *hdr,
1294 int ring_page)
1295 {
1296 kio_addr_t nic_base = dev->base_addr;
1297
1298 if (ei_status.dmaing) {
1299 printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input."
1300 "[DMAstat:%1x][irqlock:%1x]\n",
1301 dev->name, ei_status.dmaing, ei_status.irqlock);
1302 return;
1303 }
1304
1305 ei_status.dmaing |= 0x01;
1306 outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD);
1307 outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
1308 outb_p(0, nic_base + EN0_RCNTHI);
1309 outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */
1310 outb_p(ring_page, nic_base + EN0_RSARHI);
1311 outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD);
1312
1313 insw(nic_base + PCNET_DATAPORT, hdr,
1314 sizeof(struct e8390_pkt_hdr)>>1);
1315 /* Fix for big endian systems */
1316 hdr->count = le16_to_cpu(hdr->count);
1317
1318 outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
1319 ei_status.dmaing &= ~0x01;
1320 }
1321
1322 /*====================================================================*/
1323
1324 static void dma_block_input(struct net_device *dev, int count,
1325 struct sk_buff *skb, int ring_offset)
1326 {
1327 kio_addr_t nic_base = dev->base_addr;
1328 int xfer_count = count;
1329 char *buf = skb->data;
1330
1331 #ifdef PCMCIA_DEBUG
1332 if ((ei_debug > 4) && (count != 4))
1333 printk(KERN_DEBUG "%s: [bi=%d]\n", dev->name, count+4);
1334 #endif
1335 if (ei_status.dmaing) {
1336 printk(KERN_NOTICE "%s: DMAing conflict in dma_block_input."
1337 "[DMAstat:%1x][irqlock:%1x]\n",
1338 dev->name, ei_status.dmaing, ei_status.irqlock);
1339 return;
1340 }
1341 ei_status.dmaing |= 0x01;
1342 outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD);
1343 outb_p(count & 0xff, nic_base + EN0_RCNTLO);
1344 outb_p(count >> 8, nic_base + EN0_RCNTHI);
1345 outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO);
1346 outb_p(ring_offset >> 8, nic_base + EN0_RSARHI);
1347 outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD);
1348
1349 insw(nic_base + PCNET_DATAPORT,buf,count>>1);
1350 if (count & 0x01)
1351 buf[count-1] = inb(nic_base + PCNET_DATAPORT), xfer_count++;
1352
1353 /* This was for the ALPHA version only, but enough people have
1354 encountering problems that it is still here. */
1355 #ifdef PCMCIA_DEBUG
1356 if (ei_debug > 4) { /* DMA termination address check... */
1357 int addr, tries = 20;
1358 do {
1359 /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
1360 -- it's broken for Rx on some cards! */
1361 int high = inb_p(nic_base + EN0_RSARHI);
1362 int low = inb_p(nic_base + EN0_RSARLO);
1363 addr = (high << 8) + low;
1364 if (((ring_offset + xfer_count) & 0xff) == (addr & 0xff))
1365 break;
1366 } while (--tries > 0);
1367 if (tries <= 0)
1368 printk(KERN_NOTICE "%s: RX transfer address mismatch,"
1369 "%#4.4x (expected) vs. %#4.4x (actual).\n",
1370 dev->name, ring_offset + xfer_count, addr);
1371 }
1372 #endif
1373 outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
1374 ei_status.dmaing &= ~0x01;
1375 } /* dma_block_input */
1376
1377 /*====================================================================*/
1378
1379 static void dma_block_output(struct net_device *dev, int count,
1380 const u_char *buf, const int start_page)
1381 {
1382 kio_addr_t nic_base = dev->base_addr;
1383 pcnet_dev_t *info = PRIV(dev);
1384 #ifdef PCMCIA_DEBUG
1385 int retries = 0;
1386 #endif
1387 u_long dma_start;
1388
1389 #ifdef PCMCIA_DEBUG
1390 if (ei_debug > 4)
1391 printk(KERN_DEBUG "%s: [bo=%d]\n", dev->name, count);
1392 #endif
1393
1394 /* Round the count up for word writes. Do we need to do this?
1395 What effect will an odd byte count have on the 8390?
1396 I should check someday. */
1397 if (count & 0x01)
1398 count++;
1399 if (ei_status.dmaing) {
1400 printk(KERN_NOTICE "%s: DMAing conflict in dma_block_output."
1401 "[DMAstat:%1x][irqlock:%1x]\n",
1402 dev->name, ei_status.dmaing, ei_status.irqlock);
1403 return;
1404 }
1405 ei_status.dmaing |= 0x01;
1406 /* We should already be in page 0, but to be safe... */
1407 outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base+PCNET_CMD);
1408
1409 #ifdef PCMCIA_DEBUG
1410 retry:
1411 #endif
1412
1413 outb_p(ENISR_RDC, nic_base + EN0_ISR);
1414
1415 /* Now the normal output. */
1416 outb_p(count & 0xff, nic_base + EN0_RCNTLO);
1417 outb_p(count >> 8, nic_base + EN0_RCNTHI);
1418 outb_p(0x00, nic_base + EN0_RSARLO);
1419 outb_p(start_page, nic_base + EN0_RSARHI);
1420
1421 outb_p(E8390_RWRITE+E8390_START, nic_base + PCNET_CMD);
1422 outsw(nic_base + PCNET_DATAPORT, buf, count>>1);
1423
1424 dma_start = jiffies;
1425
1426 #ifdef PCMCIA_DEBUG
1427 /* This was for the ALPHA version only, but enough people have
1428 encountering problems that it is still here. */
1429 if (ei_debug > 4) { /* DMA termination address check... */
1430 int addr, tries = 20;
1431 do {
1432 int high = inb_p(nic_base + EN0_RSARHI);
1433 int low = inb_p(nic_base + EN0_RSARLO);
1434 addr = (high << 8) + low;
1435 if ((start_page << 8) + count == addr)
1436 break;
1437 } while (--tries > 0);
1438 if (tries <= 0) {
1439 printk(KERN_NOTICE "%s: Tx packet transfer address mismatch,"
1440 "%#4.4x (expected) vs. %#4.4x (actual).\n",
1441 dev->name, (start_page << 8) + count, addr);
1442 if (retries++ == 0)
1443 goto retry;
1444 }
1445 }
1446 #endif
1447
1448 while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0)
1449 if (time_after(jiffies, dma_start + PCNET_RDC_TIMEOUT)) {
1450 printk(KERN_NOTICE "%s: timeout waiting for Tx RDC.\n",
1451 dev->name);
1452 pcnet_reset_8390(dev);
1453 NS8390_init(dev, 1);
1454 break;
1455 }
1456
1457 outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
1458 if (info->flags & DELAY_OUTPUT)
1459 udelay((long)delay_time);
1460 ei_status.dmaing &= ~0x01;
1461 }
1462
1463 /*====================================================================*/
1464
1465 static int setup_dma_config(dev_link_t *link, int start_pg,
1466 int stop_pg)
1467 {
1468 struct net_device *dev = link->priv;
1469
1470 ei_status.tx_start_page = start_pg;
1471 ei_status.rx_start_page = start_pg + TX_PAGES;
1472 ei_status.stop_page = stop_pg;
1473
1474 /* set up block i/o functions */
1475 ei_status.get_8390_hdr = &dma_get_8390_hdr;
1476 ei_status.block_input = &dma_block_input;
1477 ei_status.block_output = &dma_block_output;
1478
1479 return 0;
1480 }
1481
1482 /*====================================================================*/
1483
1484 static void copyin(void *dest, void __iomem *src, int c)
1485 {
1486 u_short *d = dest;
1487 u_short __iomem *s = src;
1488 int odd;
1489
1490 if (c <= 0)
1491 return;
1492 odd = (c & 1); c >>= 1;
1493
1494 if (c) {
1495 do { *d++ = __raw_readw(s++); } while (--c);
1496 }
1497 /* get last byte by fetching a word and masking */
1498 if (odd)
1499 *((u_char *)d) = readw(s) & 0xff;
1500 }
1501
1502 static void copyout(void __iomem *dest, const void *src, int c)
1503 {
1504 u_short __iomem *d = dest;
1505 const u_short *s = src;
1506 int odd;
1507
1508 if (c <= 0)
1509 return;
1510 odd = (c & 1); c >>= 1;
1511
1512 if (c) {
1513 do { __raw_writew(*s++, d++); } while (--c);
1514 }
1515 /* copy last byte doing a read-modify-write */
1516 if (odd)
1517 writew((readw(d) & 0xff00) | *(u_char *)s, d);
1518 }
1519
1520 /*====================================================================*/
1521
1522 static void shmem_get_8390_hdr(struct net_device *dev,
1523 struct e8390_pkt_hdr *hdr,
1524 int ring_page)
1525 {
1526 void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8)
1527 + (ring_page << 8)
1528 - (ei_status.rx_start_page << 8);
1529
1530 copyin(hdr, xfer_start, sizeof(struct e8390_pkt_hdr));
1531 /* Fix for big endian systems */
1532 hdr->count = le16_to_cpu(hdr->count);
1533 }
1534
1535 /*====================================================================*/
1536
1537 static void shmem_block_input(struct net_device *dev, int count,
1538 struct sk_buff *skb, int ring_offset)
1539 {
1540 void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8)
1541 + ring_offset
1542 - (ei_status.rx_start_page << 8);
1543 char *buf = skb->data;
1544
1545 if (xfer_start + count > (void __iomem *)ei_status.rmem_end) {
1546 /* We must wrap the input move. */
1547 int semi_count = (void __iomem *)ei_status.rmem_end - xfer_start;
1548 copyin(buf, xfer_start, semi_count);
1549 buf += semi_count;
1550 xfer_start = ei_status.mem + (TX_PAGES<<8);
1551 count -= semi_count;
1552 }
1553 copyin(buf, xfer_start, count);
1554 }
1555
1556 /*====================================================================*/
1557
1558 static void shmem_block_output(struct net_device *dev, int count,
1559 const u_char *buf, const int start_page)
1560 {
1561 void __iomem *shmem = ei_status.mem + (start_page << 8);
1562 shmem -= ei_status.tx_start_page << 8;
1563 copyout(shmem, buf, count);
1564 }
1565
1566 /*====================================================================*/
1567
1568 static int setup_shmem_window(dev_link_t *link, int start_pg,
1569 int stop_pg, int cm_offset)
1570 {
1571 struct net_device *dev = link->priv;
1572 pcnet_dev_t *info = PRIV(dev);
1573 win_req_t req;
1574 memreq_t mem;
1575 int i, window_size, offset, last_ret, last_fn;
1576
1577 window_size = (stop_pg - start_pg) << 8;
1578 if (window_size > 32 * 1024)
1579 window_size = 32 * 1024;
1580
1581 /* Make sure it's a power of two. */
1582 while ((window_size & (window_size - 1)) != 0)
1583 window_size += window_size & ~(window_size - 1);
1584
1585 /* Allocate a memory window */
1586 req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
1587 req.Attributes |= WIN_USE_WAIT;
1588 req.Base = 0; req.Size = window_size;
1589 req.AccessSpeed = mem_speed;
1590 CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win));
1591
1592 mem.CardOffset = (start_pg << 8) + cm_offset;
1593 offset = mem.CardOffset % window_size;
1594 mem.CardOffset -= offset;
1595 mem.Page = 0;
1596 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
1597
1598 /* Try scribbling on the buffer */
1599 info->base = ioremap(req.Base, window_size);
1600 for (i = 0; i < (TX_PAGES<<8); i += 2)
1601 __raw_writew((i>>1), info->base+offset+i);
1602 udelay(100);
1603 for (i = 0; i < (TX_PAGES<<8); i += 2)
1604 if (__raw_readw(info->base+offset+i) != (i>>1)) break;
1605 pcnet_reset_8390(dev);
1606 if (i != (TX_PAGES<<8)) {
1607 iounmap(info->base);
1608 pcmcia_release_window(link->win);
1609 info->base = NULL; link->win = NULL;
1610 goto failed;
1611 }
1612
1613 ei_status.mem = info->base + offset;
1614 dev->mem_start = (u_long)ei_status.mem;
1615 dev->mem_end = ei_status.rmem_end = (u_long)info->base + req.Size;
1616
1617 ei_status.tx_start_page = start_pg;
1618 ei_status.rx_start_page = start_pg + TX_PAGES;
1619 ei_status.stop_page = start_pg + ((req.Size - offset) >> 8);
1620
1621 /* set up block i/o functions */
1622 ei_status.get_8390_hdr = &shmem_get_8390_hdr;
1623 ei_status.block_input = &shmem_block_input;
1624 ei_status.block_output = &shmem_block_output;
1625
1626 info->flags |= USE_SHMEM;
1627 return 0;
1628
1629 cs_failed:
1630 cs_error(link->handle, last_fn, last_ret);
1631 failed:
1632 return 1;
1633 }
1634
1635 /*====================================================================*/
1636
1637 static struct pcmcia_driver pcnet_driver = {
1638 .drv = {
1639 .name = "pcnet_cs",
1640 },
1641 .attach = pcnet_attach,
1642 .detach = pcnet_detach,
1643 .owner = THIS_MODULE,
1644 };
1645
1646 static int __init init_pcnet_cs(void)
1647 {
1648 return pcmcia_register_driver(&pcnet_driver);
1649 }
1650
1651 static void __exit exit_pcnet_cs(void)
1652 {
1653 DEBUG(0, "pcnet_cs: unloading\n");
1654 pcmcia_unregister_driver(&pcnet_driver);
1655 BUG_ON(dev_list != NULL);
1656 }
1657
1658 module_init(init_pcnet_cs);
1659 module_exit(exit_pcnet_cs);
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