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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */
2/*
3 A Linux device driver for PCI NE2000 clones.
4
5 Authors and other copyright holders:
6 1992-2000 by Donald Becker, NE2000 core and various modifications.
7 1995-1998 by Paul Gortmaker, core modifications and PCI support.
8 Copyright 1993 assigned to the United States Government as represented
9 by the Director, National Security Agency.
10
11 This software may be used and distributed according to the terms of
12 the GNU General Public License (GPL), incorporated herein by reference.
13 Drivers based on or derived from this code fall under the GPL and must
14 retain the authorship, copyright and license notice. This file is not
15 a complete program and may only be used when the entire operating
16 system is licensed under the GPL.
17
18 The author may be reached as becker@scyld.com, or C/O
19 Scyld Computing Corporation
20 410 Severn Ave., Suite 210
21 Annapolis MD 21403
22
23 Issues remaining:
24 People are making PCI ne2000 clones! Oh the horror, the horror...
25 Limited full-duplex support.
26*/
27
28#define DRV_NAME "ne2k-pci"
29#define DRV_VERSION "1.03"
30#define DRV_RELDATE "9/22/2003"
31
32
33/* The user-configurable values.
34 These may be modified when a driver module is loaded.*/
35
36static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
37
38#define MAX_UNITS 8 /* More are supported, limit only on options */
39/* Used to pass the full-duplex flag, etc. */
40static int full_duplex[MAX_UNITS];
41static int options[MAX_UNITS];
42
43/* Force a non std. amount of memory. Units are 256 byte pages. */
44/* #define PACKETBUF_MEMSIZE 0x40 */
45
46
47#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/errno.h>
50#include <linux/pci.h>
51#include <linux/init.h>
52#include <linux/interrupt.h>
53#include <linux/ethtool.h>
54#include <linux/netdevice.h>
55#include <linux/etherdevice.h>
56
57#include <asm/system.h>
58#include <asm/io.h>
59#include <asm/irq.h>
60#include <asm/uaccess.h>
61
62#include "8390.h"
63
64/* These identify the driver base version and may not be removed. */
65static char version[] __devinitdata =
66KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " D. Becker/P. Gortmaker\n"
67KERN_INFO " http://www.scyld.com/network/ne2k-pci.html\n";
68
69#if defined(__powerpc__)
70#define inl_le(addr) le32_to_cpu(inl(addr))
71#define inw_le(addr) le16_to_cpu(inw(addr))
72#endif
73
74#define PFX DRV_NAME ": "
75
76MODULE_AUTHOR("Donald Becker / Paul Gortmaker");
77MODULE_DESCRIPTION("PCI NE2000 clone driver");
78MODULE_LICENSE("GPL");
79
80module_param(debug, int, 0);
81module_param_array(options, int, NULL, 0);
82module_param_array(full_duplex, int, NULL, 0);
83MODULE_PARM_DESC(debug, "debug level (1-2)");
84MODULE_PARM_DESC(options, "Bit 5: full duplex");
85MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)");
86
87/* Some defines that people can play with if so inclined. */
88
89/* Use 32 bit data-movement operations instead of 16 bit. */
90#define USE_LONGIO
91
92/* Do we implement the read before write bugfix ? */
93/* #define NE_RW_BUGFIX */
94
95/* Flags. We rename an existing ei_status field to store flags! */
96/* Thus only the low 8 bits are usable for non-init-time flags. */
97#define ne2k_flags reg0
98enum {
99 ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */
100 FORCE_FDX=0x20, /* User override. */
101 REALTEK_FDX=0x40, HOLTEK_FDX=0x80,
102 STOP_PG_0x60=0x100,
103};
104
105enum ne2k_pci_chipsets {
106 CH_RealTek_RTL_8029 = 0,
107 CH_Winbond_89C940,
108 CH_Compex_RL2000,
109 CH_KTI_ET32P2,
110 CH_NetVin_NV5000SC,
111 CH_Via_86C926,
112 CH_SureCom_NE34,
113 CH_Winbond_W89C940F,
114 CH_Holtek_HT80232,
115 CH_Holtek_HT80229,
116 CH_Winbond_89C940_8c4a,
117};
118
119
Hormsb2fd16b2006-03-23 16:36:28 +0900120static struct {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 char *name;
122 int flags;
123} pci_clone_list[] __devinitdata = {
124 {"RealTek RTL-8029", REALTEK_FDX},
125 {"Winbond 89C940", 0},
126 {"Compex RL2000", 0},
127 {"KTI ET32P2", 0},
128 {"NetVin NV5000SC", 0},
129 {"Via 86C926", ONLY_16BIT_IO},
130 {"SureCom NE34", 0},
131 {"Winbond W89C940F", 0},
132 {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX},
133 {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 },
134 {"Winbond W89C940(misprogrammed)", 0},
135 {NULL,}
136};
137
138
139static struct pci_device_id ne2k_pci_tbl[] = {
140 { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 },
141 { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 },
142 { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 },
143 { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 },
144 { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC },
145 { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 },
146 { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 },
147 { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F },
148 { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 },
149 { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 },
150 { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a },
151 { 0, }
152};
153MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl);
154
155
156/* ---- No user-serviceable parts below ---- */
157
158#define NE_BASE (dev->base_addr)
159#define NE_CMD 0x00
160#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */
161#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */
162#define NE_IO_EXTENT 0x20
163
164#define NESM_START_PG 0x40 /* First page of TX buffer */
165#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
166
167
168static int ne2k_pci_open(struct net_device *dev);
169static int ne2k_pci_close(struct net_device *dev);
170
171static void ne2k_pci_reset_8390(struct net_device *dev);
172static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
173 int ring_page);
174static void ne2k_pci_block_input(struct net_device *dev, int count,
175 struct sk_buff *skb, int ring_offset);
176static void ne2k_pci_block_output(struct net_device *dev, const int count,
177 const unsigned char *buf, const int start_page);
178static struct ethtool_ops ne2k_pci_ethtool_ops;
179
180
181
182/* There is no room in the standard 8390 structure for extra info we need,
183 so we build a meta/outer-wrapper structure.. */
184struct ne2k_pci_card {
185 struct net_device *dev;
186 struct pci_dev *pci_dev;
187};
188
189
190
191/*
192 NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet
193 buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes
194 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be
195 detected by their SA prefix.
196
197 Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
198 mode results in doubled values, which can be detected and compensated for.
199
200 The probe is also responsible for initializing the card and filling
201 in the 'dev' and 'ei_status' structures.
202*/
203
204
205static int __devinit ne2k_pci_init_one (struct pci_dev *pdev,
206 const struct pci_device_id *ent)
207{
208 struct net_device *dev;
209 int i;
210 unsigned char SA_prom[32];
211 int start_page, stop_page;
212 int irq, reg0, chip_idx = ent->driver_data;
213 static unsigned int fnd_cnt;
214 long ioaddr;
215 int flags = pci_clone_list[chip_idx].flags;
216
217/* when built into the kernel, we only print version if device is found */
218#ifndef MODULE
219 static int printed_version;
220 if (!printed_version++)
221 printk(version);
222#endif
223
224 fnd_cnt++;
225
226 i = pci_enable_device (pdev);
227 if (i)
228 return i;
229
230 ioaddr = pci_resource_start (pdev, 0);
231 irq = pdev->irq;
232
233 if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -0400234 dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 return -ENODEV;
236 }
237
238 if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -0400239 dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 NE_IO_EXTENT, ioaddr);
241 return -EBUSY;
242 }
243
244 reg0 = inb(ioaddr);
245 if (reg0 == 0xFF)
246 goto err_out_free_res;
247
248 /* Do a preliminary verification that we have a 8390. */
249 {
250 int regd;
251 outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
252 regd = inb(ioaddr + 0x0d);
253 outb(0xff, ioaddr + 0x0d);
254 outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
255 inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
256 if (inb(ioaddr + EN0_COUNTER0) != 0) {
257 outb(reg0, ioaddr);
258 outb(regd, ioaddr + 0x0d); /* Restore the old values. */
259 goto err_out_free_res;
260 }
261 }
262
263 /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */
264 dev = alloc_ei_netdev();
265 if (!dev) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -0400266 dev_err(&pdev->dev, "cannot allocate ethernet device\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 goto err_out_free_res;
268 }
269 SET_MODULE_OWNER(dev);
270 SET_NETDEV_DEV(dev, &pdev->dev);
271
272 /* Reset card. Who knows what dain-bramaged state it was left in. */
273 {
274 unsigned long reset_start_time = jiffies;
275
276 outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET);
277
278 /* This looks like a horrible timing loop, but it should never take
279 more than a few cycles.
280 */
281 while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0)
282 /* Limit wait: '2' avoids jiffy roll-over. */
283 if (jiffies - reset_start_time > 2) {
Jeff Garzik9b91cf92006-06-27 11:39:50 -0400284 dev_err(&pdev->dev,
Jeff Garzik2e8a5382006-06-27 10:47:51 -0400285 "Card failure (no reset ack).\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 goto err_out_free_netdev;
287 }
288
289 outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */
290 }
291
292 /* Read the 16 bytes of station address PROM.
293 We must first initialize registers, similar to NS8390_init(eifdev, 0).
294 We can't reliably read the SAPROM address without this.
295 (I learned the hard way!). */
296 {
297 struct {unsigned char value, offset; } program_seq[] = {
298 {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
299 {0x49, EN0_DCFG}, /* Set word-wide access. */
300 {0x00, EN0_RCNTLO}, /* Clear the count regs. */
301 {0x00, EN0_RCNTHI},
302 {0x00, EN0_IMR}, /* Mask completion irq. */
303 {0xFF, EN0_ISR},
304 {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
305 {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
306 {32, EN0_RCNTLO},
307 {0x00, EN0_RCNTHI},
308 {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
309 {0x00, EN0_RSARHI},
310 {E8390_RREAD+E8390_START, E8390_CMD},
311 };
312 for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++)
313 outb(program_seq[i].value, ioaddr + program_seq[i].offset);
314
315 }
316
317 /* Note: all PCI cards have at least 16 bit access, so we don't have
318 to check for 8 bit cards. Most cards permit 32 bit access. */
319 if (flags & ONLY_32BIT_IO) {
320 for (i = 0; i < 4 ; i++)
321 ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT));
322 } else
323 for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++)
324 SA_prom[i] = inb(ioaddr + NE_DATAPORT);
325
326 /* We always set the 8390 registers for word mode. */
327 outb(0x49, ioaddr + EN0_DCFG);
328 start_page = NESM_START_PG;
329
330 stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG;
331
332 /* Set up the rest of the parameters. */
333 dev->irq = irq;
334 dev->base_addr = ioaddr;
335 pci_set_drvdata(pdev, dev);
336
337 ei_status.name = pci_clone_list[chip_idx].name;
338 ei_status.tx_start_page = start_page;
339 ei_status.stop_page = stop_page;
340 ei_status.word16 = 1;
341 ei_status.ne2k_flags = flags;
342 if (fnd_cnt < MAX_UNITS) {
343 if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX))
344 ei_status.ne2k_flags |= FORCE_FDX;
345 }
346
347 ei_status.rx_start_page = start_page + TX_PAGES;
348#ifdef PACKETBUF_MEMSIZE
349 /* Allow the packet buffer size to be overridden by know-it-alls. */
350 ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
351#endif
352
353 ei_status.reset_8390 = &ne2k_pci_reset_8390;
354 ei_status.block_input = &ne2k_pci_block_input;
355 ei_status.block_output = &ne2k_pci_block_output;
356 ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr;
357 ei_status.priv = (unsigned long) pdev;
358 dev->open = &ne2k_pci_open;
359 dev->stop = &ne2k_pci_close;
360 dev->ethtool_ops = &ne2k_pci_ethtool_ops;
361#ifdef CONFIG_NET_POLL_CONTROLLER
362 dev->poll_controller = ei_poll;
363#endif
364 NS8390_init(dev, 0);
365
366 i = register_netdev(dev);
367 if (i)
368 goto err_out_free_netdev;
369
370 printk("%s: %s found at %#lx, IRQ %d, ",
371 dev->name, pci_clone_list[chip_idx].name, ioaddr, dev->irq);
372 for(i = 0; i < 6; i++) {
373 printk("%2.2X%s", SA_prom[i], i == 5 ? ".\n": ":");
374 dev->dev_addr[i] = SA_prom[i];
375 }
John W. Linville78b34582005-09-12 10:48:57 -0400376 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
378 return 0;
379
380err_out_free_netdev:
381 free_netdev (dev);
382err_out_free_res:
383 release_region (ioaddr, NE_IO_EXTENT);
384 pci_set_drvdata (pdev, NULL);
385 return -ENODEV;
386
387}
388
389/*
390 * Magic incantation sequence for full duplex on the supported cards.
391 */
392static inline int set_realtek_fdx(struct net_device *dev)
393{
394 long ioaddr = dev->base_addr;
395
396 outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */
397 outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */
398 outb(0x40, ioaddr + 0x06); /* Enable full duplex */
399 outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */
400 outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */
401 return 0;
402}
403
404static inline int set_holtek_fdx(struct net_device *dev)
405{
406 long ioaddr = dev->base_addr;
407
408 outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20);
409 return 0;
410}
411
412static int ne2k_pci_set_fdx(struct net_device *dev)
413{
414 if (ei_status.ne2k_flags & REALTEK_FDX)
415 return set_realtek_fdx(dev);
416 else if (ei_status.ne2k_flags & HOLTEK_FDX)
417 return set_holtek_fdx(dev);
418
419 return -EOPNOTSUPP;
420}
421
422static int ne2k_pci_open(struct net_device *dev)
423{
Thomas Gleixner1fb9df52006-07-01 19:29:39 -0700424 int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, dev->name, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 if (ret)
426 return ret;
427
428 if (ei_status.ne2k_flags & FORCE_FDX)
429 ne2k_pci_set_fdx(dev);
430
431 ei_open(dev);
432 return 0;
433}
434
435static int ne2k_pci_close(struct net_device *dev)
436{
437 ei_close(dev);
438 free_irq(dev->irq, dev);
439 return 0;
440}
441
442/* Hard reset the card. This used to pause for the same period that a
443 8390 reset command required, but that shouldn't be necessary. */
444static void ne2k_pci_reset_8390(struct net_device *dev)
445{
446 unsigned long reset_start_time = jiffies;
447
448 if (debug > 1) printk("%s: Resetting the 8390 t=%ld...",
449 dev->name, jiffies);
450
451 outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
452
453 ei_status.txing = 0;
454 ei_status.dmaing = 0;
455
456 /* This check _should_not_ be necessary, omit eventually. */
457 while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0)
458 if (jiffies - reset_start_time > 2) {
459 printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name);
460 break;
461 }
462 outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */
463}
464
465/* Grab the 8390 specific header. Similar to the block_input routine, but
466 we don't need to be concerned with ring wrap as the header will be at
467 the start of a page, so we optimize accordingly. */
468
469static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
470{
471
472 long nic_base = dev->base_addr;
473
474 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
475 if (ei_status.dmaing) {
476 printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr "
477 "[DMAstat:%d][irqlock:%d].\n",
478 dev->name, ei_status.dmaing, ei_status.irqlock);
479 return;
480 }
481
482 ei_status.dmaing |= 0x01;
483 outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
484 outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
485 outb(0, nic_base + EN0_RCNTHI);
486 outb(0, nic_base + EN0_RSARLO); /* On page boundary */
487 outb(ring_page, nic_base + EN0_RSARHI);
488 outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
489
490 if (ei_status.ne2k_flags & ONLY_16BIT_IO) {
491 insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1);
492 } else {
493 *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT));
494 le16_to_cpus(&hdr->count);
495 }
496
497 outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
498 ei_status.dmaing &= ~0x01;
499}
500
501/* Block input and output, similar to the Crynwr packet driver. If you
502 are porting to a new ethercard, look at the packet driver source for hints.
503 The NEx000 doesn't share the on-board packet memory -- you have to put
504 the packet out through the "remote DMA" dataport using outb. */
505
506static void ne2k_pci_block_input(struct net_device *dev, int count,
507 struct sk_buff *skb, int ring_offset)
508{
509 long nic_base = dev->base_addr;
510 char *buf = skb->data;
511
512 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
513 if (ei_status.dmaing) {
514 printk("%s: DMAing conflict in ne2k_pci_block_input "
515 "[DMAstat:%d][irqlock:%d].\n",
516 dev->name, ei_status.dmaing, ei_status.irqlock);
517 return;
518 }
519 ei_status.dmaing |= 0x01;
520 if (ei_status.ne2k_flags & ONLY_32BIT_IO)
521 count = (count + 3) & 0xFFFC;
522 outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
523 outb(count & 0xff, nic_base + EN0_RCNTLO);
524 outb(count >> 8, nic_base + EN0_RCNTHI);
525 outb(ring_offset & 0xff, nic_base + EN0_RSARLO);
526 outb(ring_offset >> 8, nic_base + EN0_RSARHI);
527 outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
528
529 if (ei_status.ne2k_flags & ONLY_16BIT_IO) {
530 insw(NE_BASE + NE_DATAPORT,buf,count>>1);
531 if (count & 0x01) {
532 buf[count-1] = inb(NE_BASE + NE_DATAPORT);
533 }
534 } else {
535 insl(NE_BASE + NE_DATAPORT, buf, count>>2);
536 if (count & 3) {
537 buf += count & ~3;
538 if (count & 2) {
539 u16 *b = (u16 *)buf;
540
541 *b++ = le16_to_cpu(inw(NE_BASE + NE_DATAPORT));
542 buf = (char *)b;
543 }
544 if (count & 1)
545 *buf = inb(NE_BASE + NE_DATAPORT);
546 }
547 }
548
549 outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
550 ei_status.dmaing &= ~0x01;
551}
552
553static void ne2k_pci_block_output(struct net_device *dev, int count,
554 const unsigned char *buf, const int start_page)
555{
556 long nic_base = NE_BASE;
557 unsigned long dma_start;
558
559 /* On little-endian it's always safe to round the count up for
560 word writes. */
561 if (ei_status.ne2k_flags & ONLY_32BIT_IO)
562 count = (count + 3) & 0xFFFC;
563 else
564 if (count & 0x01)
565 count++;
566
567 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
568 if (ei_status.dmaing) {
569 printk("%s: DMAing conflict in ne2k_pci_block_output."
570 "[DMAstat:%d][irqlock:%d]\n",
571 dev->name, ei_status.dmaing, ei_status.irqlock);
572 return;
573 }
574 ei_status.dmaing |= 0x01;
575 /* We should already be in page 0, but to be safe... */
576 outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
577
578#ifdef NE8390_RW_BUGFIX
579 /* Handle the read-before-write bug the same way as the
580 Crynwr packet driver -- the NatSemi method doesn't work.
581 Actually this doesn't always work either, but if you have
582 problems with your NEx000 this is better than nothing! */
583 outb(0x42, nic_base + EN0_RCNTLO);
584 outb(0x00, nic_base + EN0_RCNTHI);
585 outb(0x42, nic_base + EN0_RSARLO);
586 outb(0x00, nic_base + EN0_RSARHI);
587 outb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
588#endif
589 outb(ENISR_RDC, nic_base + EN0_ISR);
590
591 /* Now the normal output. */
592 outb(count & 0xff, nic_base + EN0_RCNTLO);
593 outb(count >> 8, nic_base + EN0_RCNTHI);
594 outb(0x00, nic_base + EN0_RSARLO);
595 outb(start_page, nic_base + EN0_RSARHI);
596 outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
597 if (ei_status.ne2k_flags & ONLY_16BIT_IO) {
598 outsw(NE_BASE + NE_DATAPORT, buf, count>>1);
599 } else {
600 outsl(NE_BASE + NE_DATAPORT, buf, count>>2);
601 if (count & 3) {
602 buf += count & ~3;
603 if (count & 2) {
604 u16 *b = (u16 *)buf;
605
606 outw(cpu_to_le16(*b++), NE_BASE + NE_DATAPORT);
607 buf = (char *)b;
608 }
609 }
610 }
611
612 dma_start = jiffies;
613
614 while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0)
615 if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */
616 printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
617 ne2k_pci_reset_8390(dev);
618 NS8390_init(dev,1);
619 break;
620 }
621
622 outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
623 ei_status.dmaing &= ~0x01;
624 return;
625}
626
627static void ne2k_pci_get_drvinfo(struct net_device *dev,
628 struct ethtool_drvinfo *info)
629{
630 struct ei_device *ei = dev->priv;
631 struct pci_dev *pci_dev = (struct pci_dev *) ei->priv;
632
633 strcpy(info->driver, DRV_NAME);
634 strcpy(info->version, DRV_VERSION);
635 strcpy(info->bus_info, pci_name(pci_dev));
636}
637
638static struct ethtool_ops ne2k_pci_ethtool_ops = {
639 .get_drvinfo = ne2k_pci_get_drvinfo,
640 .get_tx_csum = ethtool_op_get_tx_csum,
641 .get_sg = ethtool_op_get_sg,
John W. Linville78b34582005-09-12 10:48:57 -0400642 .get_perm_addr = ethtool_op_get_perm_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643};
644
645static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev)
646{
647 struct net_device *dev = pci_get_drvdata(pdev);
648
Eric Sesterhenn5d9428d2006-04-02 13:52:48 +0200649 BUG_ON(!dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 unregister_netdev(dev);
651 release_region(dev->base_addr, NE_IO_EXTENT);
652 free_netdev(dev);
653 pci_disable_device(pdev);
654 pci_set_drvdata(pdev, NULL);
655}
656
657#ifdef CONFIG_PM
658static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state)
659{
660 struct net_device *dev = pci_get_drvdata (pdev);
661
662 netif_device_detach(dev);
663 pci_save_state(pdev);
David Shaohua Lid58da592005-03-18 16:43:54 -0500664 pci_disable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 pci_set_power_state(pdev, pci_choose_state(pdev, state));
666
667 return 0;
668}
669
670static int ne2k_pci_resume (struct pci_dev *pdev)
671{
672 struct net_device *dev = pci_get_drvdata (pdev);
673
674 pci_set_power_state(pdev, 0);
675 pci_restore_state(pdev);
David Shaohua Lid58da592005-03-18 16:43:54 -0500676 pci_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 NS8390_init(dev, 1);
678 netif_device_attach(dev);
679
680 return 0;
681}
682
683#endif /* CONFIG_PM */
684
685
686static struct pci_driver ne2k_driver = {
687 .name = DRV_NAME,
688 .probe = ne2k_pci_init_one,
689 .remove = __devexit_p(ne2k_pci_remove_one),
690 .id_table = ne2k_pci_tbl,
691#ifdef CONFIG_PM
692 .suspend = ne2k_pci_suspend,
693 .resume = ne2k_pci_resume,
694#endif /* CONFIG_PM */
695
696};
697
698
699static int __init ne2k_pci_init(void)
700{
701/* when a module, this is printed whether or not devices are found in probe */
702#ifdef MODULE
703 printk(version);
704#endif
Jeff Garzik29917622006-08-19 17:48:59 -0400705 return pci_register_driver(&ne2k_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706}
707
708
709static void __exit ne2k_pci_cleanup(void)
710{
711 pci_unregister_driver (&ne2k_driver);
712}
713
714module_init(ne2k_pci_init);
715module_exit(ne2k_pci_cleanup);