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30#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
31
32#include <linux/module.h>
33#include <linux/moduleparam.h>
34#include <linux/kernel.h>
35#include <linux/types.h>
36#include <linux/ioport.h>
37#include <linux/errno.h>
38#include <linux/netdevice.h>
39#include <linux/init.h>
40#include <linux/interrupt.h>
41#include <linux/pci.h>
42#include <linux/list.h>
43#include <linux/io.h>
44#include <linux/leds.h>
45
46#include "arcdevice.h"
47#include "com20020.h"
48
49
50
51static int node;
52static char device[9];
53static int timeout = 3;
54static int backplane;
55static int clockp;
56static int clockm;
57
58module_param(node, int, 0);
59module_param_string(device, device, sizeof(device), 0);
60module_param(timeout, int, 0);
61module_param(backplane, int, 0);
62module_param(clockp, int, 0);
63module_param(clockm, int, 0);
64MODULE_LICENSE("GPL");
65
66static void led_tx_set(struct led_classdev *led_cdev,
67 enum led_brightness value)
68{
69 struct com20020_dev *card;
70 struct com20020_priv *priv;
71 struct com20020_pci_card_info *ci;
72
73 card = container_of(led_cdev, struct com20020_dev, tx_led);
74
75 priv = card->pci_priv;
76 ci = priv->ci;
77
78 outb(!!value, priv->misc + ci->leds[card->index].green);
79}
80
81static void led_recon_set(struct led_classdev *led_cdev,
82 enum led_brightness value)
83{
84 struct com20020_dev *card;
85 struct com20020_priv *priv;
86 struct com20020_pci_card_info *ci;
87
88 card = container_of(led_cdev, struct com20020_dev, recon_led);
89
90 priv = card->pci_priv;
91 ci = priv->ci;
92
93 outb(!!value, priv->misc + ci->leds[card->index].red);
94}
95
96static ssize_t backplane_mode_show(struct device *dev,
97 struct device_attribute *attr,
98 char *buf)
99{
100 struct net_device *net_dev = to_net_dev(dev);
101 struct arcnet_local *lp = netdev_priv(net_dev);
102
103 return sprintf(buf, "%s\n", lp->backplane ? "true" : "false");
104}
105static DEVICE_ATTR_RO(backplane_mode);
106
107static struct attribute *com20020_state_attrs[] = {
108 &dev_attr_backplane_mode.attr,
109 NULL,
110};
111
112static const struct attribute_group com20020_state_group = {
113 .name = NULL,
114 .attrs = com20020_state_attrs,
115};
116
117static void com20020pci_remove(struct pci_dev *pdev);
118
119static int com20020pci_probe(struct pci_dev *pdev,
120 const struct pci_device_id *id)
121{
122 struct com20020_pci_card_info *ci;
123 struct com20020_pci_channel_map *mm;
124 struct net_device *dev;
125 struct arcnet_local *lp;
126 struct com20020_priv *priv;
127 int i, ioaddr, ret;
128 struct resource *r;
129
130 ret = 0;
131
132 if (pci_enable_device(pdev))
133 return -EIO;
134
135 priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv),
136 GFP_KERNEL);
137 if (!priv)
138 return -ENOMEM;
139
140 ci = (struct com20020_pci_card_info *)id->driver_data;
141 priv->ci = ci;
142 mm = &ci->misc_map;
143
144 pci_set_drvdata(pdev, priv);
145
146 INIT_LIST_HEAD(&priv->list_dev);
147
148 if (mm->size) {
149 ioaddr = pci_resource_start(pdev, mm->bar) + mm->offset;
150 r = devm_request_region(&pdev->dev, ioaddr, mm->size,
151 "com20020-pci");
152 if (!r) {
153 pr_err("IO region %xh-%xh already allocated.\n",
154 ioaddr, ioaddr + mm->size - 1);
155 return -EBUSY;
156 }
157 priv->misc = ioaddr;
158 }
159
160 for (i = 0; i < ci->devcount; i++) {
161 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i];
162 struct com20020_dev *card;
163 int dev_id_mask = 0xf;
164
165 dev = alloc_arcdev(device);
166 if (!dev) {
167 ret = -ENOMEM;
168 break;
169 }
170 dev->dev_port = i;
171
172 dev->netdev_ops = &com20020_netdev_ops;
173
174 lp = netdev_priv(dev);
175
176 arc_printk(D_NORMAL, dev, "%s Controls\n", ci->name);
177 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset;
178
179 r = devm_request_region(&pdev->dev, ioaddr, cm->size,
180 "com20020-pci");
181 if (!r) {
182 pr_err("IO region %xh-%xh already allocated\n",
183 ioaddr, ioaddr + cm->size - 1);
184 ret = -EBUSY;
185 goto err_free_arcdev;
186 }
187
188
189
190
191
192 arcnet_outb(0x00, ioaddr, COM20020_REG_W_COMMAND);
193 arcnet_inb(ioaddr, COM20020_REG_R_DIAGSTAT);
194
195 SET_NETDEV_DEV(dev, &pdev->dev);
196 dev->base_addr = ioaddr;
197 dev->dev_addr[0] = node;
198 dev->sysfs_groups[0] = &com20020_state_group;
199 dev->irq = pdev->irq;
200 lp->card_name = "PCI COM20020";
201 lp->card_flags = ci->flags;
202 lp->backplane = backplane;
203 lp->clockp = clockp & 7;
204 lp->clockm = clockm & 3;
205 lp->timeout = timeout;
206 lp->hw.owner = THIS_MODULE;
207
208 lp->backplane = (inb(priv->misc) >> (2 + i)) & 0x1;
209
210 if (!strncmp(ci->name, "EAE PLX-PCI FB2", 15))
211 lp->backplane = 1;
212
213
214 if (!strncmp(ci->name, "EAE PLX-PCI MA1", 15))
215 dev_id_mask = 0x3;
216 dev->dev_id = (inb(priv->misc + ci->rotary) >> 4) & dev_id_mask;
217
218 snprintf(dev->name, sizeof(dev->name), "arc%d-%d", dev->dev_id, i);
219
220 if (arcnet_inb(ioaddr, COM20020_REG_R_STATUS) == 0xFF) {
221 pr_err("IO address %Xh is empty!\n", ioaddr);
222 ret = -EIO;
223 goto err_free_arcdev;
224 }
225 if (com20020_check(dev)) {
226 ret = -EIO;
227 goto err_free_arcdev;
228 }
229
230 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev),
231 GFP_KERNEL);
232 if (!card) {
233 ret = -ENOMEM;
234 goto err_free_arcdev;
235 }
236
237 card->index = i;
238 card->pci_priv = priv;
239 card->tx_led.brightness_set = led_tx_set;
240 card->tx_led.default_trigger = devm_kasprintf(&pdev->dev,
241 GFP_KERNEL, "arc%d-%d-tx",
242 dev->dev_id, i);
243 card->tx_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
244 "pci:green:tx:%d-%d",
245 dev->dev_id, i);
246
247 card->tx_led.dev = &dev->dev;
248 card->recon_led.brightness_set = led_recon_set;
249 card->recon_led.default_trigger = devm_kasprintf(&pdev->dev,
250 GFP_KERNEL, "arc%d-%d-recon",
251 dev->dev_id, i);
252 card->recon_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
253 "pci:red:recon:%d-%d",
254 dev->dev_id, i);
255 card->recon_led.dev = &dev->dev;
256 card->dev = dev;
257
258 ret = devm_led_classdev_register(&pdev->dev, &card->tx_led);
259 if (ret)
260 goto err_free_arcdev;
261
262 ret = devm_led_classdev_register(&pdev->dev, &card->recon_led);
263 if (ret)
264 goto err_free_arcdev;
265
266 dev_set_drvdata(&dev->dev, card);
267
268 ret = com20020_found(dev, IRQF_SHARED);
269 if (ret)
270 goto err_free_arcdev;
271
272 devm_arcnet_led_init(dev, dev->dev_id, i);
273
274 list_add(&card->list, &priv->list_dev);
275 continue;
276
277err_free_arcdev:
278 free_arcdev(dev);
279 break;
280 }
281 if (ret)
282 com20020pci_remove(pdev);
283 return ret;
284}
285
286static void com20020pci_remove(struct pci_dev *pdev)
287{
288 struct com20020_dev *card, *tmpcard;
289 struct com20020_priv *priv;
290
291 priv = pci_get_drvdata(pdev);
292
293 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) {
294 struct net_device *dev = card->dev;
295
296 unregister_netdev(dev);
297 free_irq(dev->irq, dev);
298 free_arcdev(dev);
299 }
300}
301
302static struct com20020_pci_card_info card_info_10mbit = {
303 .name = "ARC-PCI",
304 .devcount = 1,
305 .chan_map_tbl = {
306 {
307 .bar = 2,
308 .offset = 0x00,
309 .size = 0x08,
310 },
311 },
312 .flags = ARC_CAN_10MBIT,
313};
314
315static struct com20020_pci_card_info card_info_5mbit = {
316 .name = "ARC-PCI",
317 .devcount = 1,
318 .chan_map_tbl = {
319 {
320 .bar = 2,
321 .offset = 0x00,
322 .size = 0x08,
323 },
324 },
325 .flags = ARC_IS_5MBIT,
326};
327
328static struct com20020_pci_card_info card_info_sohard = {
329 .name = "PLX-PCI",
330 .devcount = 1,
331
332 .chan_map_tbl = {
333 {
334 .bar = 4,
335 .offset = 0x00,
336 .size = 0x08
337 },
338 },
339 .flags = ARC_CAN_10MBIT,
340};
341
342static struct com20020_pci_card_info card_info_eae_arc1 = {
343 .name = "EAE PLX-PCI ARC1",
344 .devcount = 1,
345 .chan_map_tbl = {
346 {
347 .bar = 2,
348 .offset = 0x00,
349 .size = 0x08,
350 },
351 },
352 .misc_map = {
353 .bar = 2,
354 .offset = 0x10,
355 .size = 0x04,
356 },
357 .leds = {
358 {
359 .green = 0x0,
360 .red = 0x1,
361 },
362 },
363 .rotary = 0x0,
364 .flags = ARC_CAN_10MBIT,
365};
366
367static struct com20020_pci_card_info card_info_eae_ma1 = {
368 .name = "EAE PLX-PCI MA1",
369 .devcount = 2,
370 .chan_map_tbl = {
371 {
372 .bar = 2,
373 .offset = 0x00,
374 .size = 0x08,
375 }, {
376 .bar = 2,
377 .offset = 0x08,
378 .size = 0x08,
379 }
380 },
381 .misc_map = {
382 .bar = 2,
383 .offset = 0x10,
384 .size = 0x04,
385 },
386 .leds = {
387 {
388 .green = 0x0,
389 .red = 0x1,
390 }, {
391 .green = 0x2,
392 .red = 0x3,
393 },
394 },
395 .rotary = 0x0,
396 .flags = ARC_CAN_10MBIT,
397};
398
399static struct com20020_pci_card_info card_info_eae_fb2 = {
400 .name = "EAE PLX-PCI FB2",
401 .devcount = 1,
402 .chan_map_tbl = {
403 {
404 .bar = 2,
405 .offset = 0x00,
406 .size = 0x08,
407 },
408 },
409 .misc_map = {
410 .bar = 2,
411 .offset = 0x10,
412 .size = 0x04,
413 },
414 .leds = {
415 {
416 .green = 0x0,
417 .red = 0x1,
418 },
419 },
420 .rotary = 0x0,
421 .flags = ARC_CAN_10MBIT,
422};
423
424static const struct pci_device_id com20020pci_id_table[] = {
425 {
426 0x1571, 0xa001,
427 PCI_ANY_ID, PCI_ANY_ID,
428 0, 0,
429 0,
430 },
431 {
432 0x1571, 0xa002,
433 PCI_ANY_ID, PCI_ANY_ID,
434 0, 0,
435 0,
436 },
437 {
438 0x1571, 0xa003,
439 PCI_ANY_ID, PCI_ANY_ID,
440 0, 0,
441 0
442 },
443 {
444 0x1571, 0xa004,
445 PCI_ANY_ID, PCI_ANY_ID,
446 0, 0,
447 0,
448 },
449 {
450 0x1571, 0xa005,
451 PCI_ANY_ID, PCI_ANY_ID,
452 0, 0,
453 0
454 },
455 {
456 0x1571, 0xa006,
457 PCI_ANY_ID, PCI_ANY_ID,
458 0, 0,
459 0
460 },
461 {
462 0x1571, 0xa007,
463 PCI_ANY_ID, PCI_ANY_ID,
464 0, 0,
465 0
466 },
467 {
468 0x1571, 0xa008,
469 PCI_ANY_ID, PCI_ANY_ID,
470 0, 0,
471 0
472 },
473 {
474 0x1571, 0xa009,
475 PCI_ANY_ID, PCI_ANY_ID,
476 0, 0,
477 (kernel_ulong_t)&card_info_5mbit
478 },
479 {
480 0x1571, 0xa00a,
481 PCI_ANY_ID, PCI_ANY_ID,
482 0, 0,
483 (kernel_ulong_t)&card_info_5mbit
484 },
485 {
486 0x1571, 0xa00b,
487 PCI_ANY_ID, PCI_ANY_ID,
488 0, 0,
489 (kernel_ulong_t)&card_info_5mbit
490 },
491 {
492 0x1571, 0xa00c,
493 PCI_ANY_ID, PCI_ANY_ID,
494 0, 0,
495 (kernel_ulong_t)&card_info_5mbit
496 },
497 {
498 0x1571, 0xa00d,
499 PCI_ANY_ID, PCI_ANY_ID,
500 0, 0,
501 (kernel_ulong_t)&card_info_5mbit
502 },
503 {
504 0x1571, 0xa00e,
505 PCI_ANY_ID, PCI_ANY_ID,
506 0, 0,
507 (kernel_ulong_t)&card_info_5mbit
508 },
509 {
510 0x1571, 0xa201,
511 PCI_ANY_ID, PCI_ANY_ID,
512 0, 0,
513 (kernel_ulong_t)&card_info_10mbit
514 },
515 {
516 0x1571, 0xa202,
517 PCI_ANY_ID, PCI_ANY_ID,
518 0, 0,
519 (kernel_ulong_t)&card_info_10mbit
520 },
521 {
522 0x1571, 0xa203,
523 PCI_ANY_ID, PCI_ANY_ID,
524 0, 0,
525 (kernel_ulong_t)&card_info_10mbit
526 },
527 {
528 0x1571, 0xa204,
529 PCI_ANY_ID, PCI_ANY_ID,
530 0, 0,
531 (kernel_ulong_t)&card_info_10mbit
532 },
533 {
534 0x1571, 0xa205,
535 PCI_ANY_ID, PCI_ANY_ID,
536 0, 0,
537 (kernel_ulong_t)&card_info_10mbit
538 },
539 {
540 0x1571, 0xa206,
541 PCI_ANY_ID, PCI_ANY_ID,
542 0, 0,
543 (kernel_ulong_t)&card_info_10mbit
544 },
545 {
546 0x10B5, 0x9030,
547 0x10B5, 0x2978,
548 0, 0,
549 (kernel_ulong_t)&card_info_sohard
550 },
551 {
552 0x10B5, 0x9050,
553 0x10B5, 0x2273,
554 0, 0,
555 (kernel_ulong_t)&card_info_sohard
556 },
557 {
558 0x10B5, 0x9050,
559 0x10B5, 0x3263,
560 0, 0,
561 (kernel_ulong_t)&card_info_eae_arc1
562 },
563 {
564 0x10B5, 0x9050,
565 0x10B5, 0x3292,
566 0, 0,
567 (kernel_ulong_t)&card_info_eae_ma1
568 },
569 {
570 0x10B5, 0x9050,
571 0x10B5, 0x3294,
572 0, 0,
573 (kernel_ulong_t)&card_info_eae_fb2
574 },
575 {
576 0x14BA, 0x6000,
577 PCI_ANY_ID, PCI_ANY_ID,
578 0, 0,
579 (kernel_ulong_t)&card_info_10mbit
580 },
581 {
582 0x10B5, 0x2200,
583 PCI_ANY_ID, PCI_ANY_ID,
584 0, 0,
585 (kernel_ulong_t)&card_info_10mbit
586 },
587 { 0, }
588};
589
590MODULE_DEVICE_TABLE(pci, com20020pci_id_table);
591
592static struct pci_driver com20020pci_driver = {
593 .name = "com20020",
594 .id_table = com20020pci_id_table,
595 .probe = com20020pci_probe,
596 .remove = com20020pci_remove,
597};
598
599static int __init com20020pci_init(void)
600{
601 if (BUGLVL(D_NORMAL))
602 pr_info("%s\n", "COM20020 PCI support");
603 return pci_register_driver(&com20020pci_driver);
604}
605
606static void __exit com20020pci_cleanup(void)
607{
608 pci_unregister_driver(&com20020pci_driver);
609}
610
611module_init(com20020pci_init)
612module_exit(com20020pci_cleanup)
613
