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16#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17
18#include <linux/module.h>
19#include <linux/kernel.h>
20#include <linux/slab.h>
21#include <linux/sched.h>
22#include <linux/types.h>
23#include <linux/fcntl.h>
24#include <linux/string.h>
25#include <linux/errno.h>
26#include <linux/init.h>
27#include <linux/interrupt.h>
28#include <linux/ioport.h>
29#include <linux/netdevice.h>
30#include <linux/hdlc.h>
31#include <linux/pci.h>
32#include <linux/dma-mapping.h>
33#include <linux/delay.h>
34#include <asm/io.h>
35
36#include "wanxl.h"
37
38static const char* version = "wanXL serial card driver version: 0.48";
39
40#define PLX_CTL_RESET 0x40000000
41
42#undef DEBUG_PKT
43#undef DEBUG_PCI
44
45
46#define MBX1_CMD_ABORTJ 0x85000000
47#ifdef __LITTLE_ENDIAN
48#define MBX1_CMD_BSWAP 0x8C000001
49#else
50#define MBX1_CMD_BSWAP 0x8C000000
51#endif
52
53
54#define MBX2_MEMSZ_MASK 0xFFFF0000
55
56
57struct port {
58 struct net_device *dev;
59 struct card *card;
60 spinlock_t lock;
61 int node;
62 unsigned int clock_type;
63 int tx_in, tx_out;
64 struct sk_buff *tx_skbs[TX_BUFFERS];
65};
66
67
68struct card_status {
69 desc_t rx_descs[RX_QUEUE_LENGTH];
70 port_status_t port_status[4];
71};
72
73
74struct card {
75 int n_ports;
76 u8 irq;
77
78 u8 __iomem *plx;
79 struct pci_dev *pdev;
80 int rx_in;
81 struct sk_buff *rx_skbs[RX_QUEUE_LENGTH];
82 struct card_status *status;
83 dma_addr_t status_address;
84 struct port ports[0];
85};
86
87
88
89static inline struct port *dev_to_port(struct net_device *dev)
90{
91 return (struct port *)dev_to_hdlc(dev)->priv;
92}
93
94
95static inline port_status_t *get_status(struct port *port)
96{
97 return &port->card->status->port_status[port->node];
98}
99
100
101#ifdef DEBUG_PCI
102static inline dma_addr_t pci_map_single_debug(struct pci_dev *pdev, void *ptr,
103 size_t size, int direction)
104{
105 dma_addr_t addr = pci_map_single(pdev, ptr, size, direction);
106 if (addr + size > 0x100000000LL)
107 pr_crit("%s: pci_map_single() returned memory at 0x%llx!\n",
108 pci_name(pdev), (unsigned long long)addr);
109 return addr;
110}
111
112#undef pci_map_single
113#define pci_map_single pci_map_single_debug
114#endif
115
116
117
118static inline void wanxl_cable_intr(struct port *port)
119{
120 u32 value = get_status(port)->cable;
121 int valid = 1;
122 const char *cable, *pm, *dte = "", *dsr = "", *dcd = "";
123
124 switch(value & 0x7) {
125 case STATUS_CABLE_V35: cable = "V.35"; break;
126 case STATUS_CABLE_X21: cable = "X.21"; break;
127 case STATUS_CABLE_V24: cable = "V.24"; break;
128 case STATUS_CABLE_EIA530: cable = "EIA530"; break;
129 case STATUS_CABLE_NONE: cable = "no"; break;
130 default: cable = "invalid";
131 }
132
133 switch((value >> STATUS_CABLE_PM_SHIFT) & 0x7) {
134 case STATUS_CABLE_V35: pm = "V.35"; break;
135 case STATUS_CABLE_X21: pm = "X.21"; break;
136 case STATUS_CABLE_V24: pm = "V.24"; break;
137 case STATUS_CABLE_EIA530: pm = "EIA530"; break;
138 case STATUS_CABLE_NONE: pm = "no personality"; valid = 0; break;
139 default: pm = "invalid personality"; valid = 0;
140 }
141
142 if (valid) {
143 if ((value & 7) == ((value >> STATUS_CABLE_PM_SHIFT) & 7)) {
144 dsr = (value & STATUS_CABLE_DSR) ? ", DSR ON" :
145 ", DSR off";
146 dcd = (value & STATUS_CABLE_DCD) ? ", carrier ON" :
147 ", carrier off";
148 }
149 dte = (value & STATUS_CABLE_DCE) ? " DCE" : " DTE";
150 }
151 netdev_info(port->dev, "%s%s module, %s cable%s%s\n",
152 pm, dte, cable, dsr, dcd);
153
154 if (value & STATUS_CABLE_DCD)
155 netif_carrier_on(port->dev);
156 else
157 netif_carrier_off(port->dev);
158}
159
160
161
162
163static inline void wanxl_tx_intr(struct port *port)
164{
165 struct net_device *dev = port->dev;
166 while (1) {
167 desc_t *desc = &get_status(port)->tx_descs[port->tx_in];
168 struct sk_buff *skb = port->tx_skbs[port->tx_in];
169
170 switch (desc->stat) {
171 case PACKET_FULL:
172 case PACKET_EMPTY:
173 netif_wake_queue(dev);
174 return;
175
176 case PACKET_UNDERRUN:
177 dev->stats.tx_errors++;
178 dev->stats.tx_fifo_errors++;
179 break;
180
181 default:
182 dev->stats.tx_packets++;
183 dev->stats.tx_bytes += skb->len;
184 }
185 desc->stat = PACKET_EMPTY;
186 pci_unmap_single(port->card->pdev, desc->address, skb->len,
187 PCI_DMA_TODEVICE);
188 dev_kfree_skb_irq(skb);
189 port->tx_in = (port->tx_in + 1) % TX_BUFFERS;
190 }
191}
192
193
194
195
196static inline void wanxl_rx_intr(struct card *card)
197{
198 desc_t *desc;
199 while (desc = &card->status->rx_descs[card->rx_in],
200 desc->stat != PACKET_EMPTY) {
201 if ((desc->stat & PACKET_PORT_MASK) > card->n_ports)
202 pr_crit("%s: received packet for nonexistent port\n",
203 pci_name(card->pdev));
204 else {
205 struct sk_buff *skb = card->rx_skbs[card->rx_in];
206 struct port *port = &card->ports[desc->stat &
207 PACKET_PORT_MASK];
208 struct net_device *dev = port->dev;
209
210 if (!skb)
211 dev->stats.rx_dropped++;
212 else {
213 pci_unmap_single(card->pdev, desc->address,
214 BUFFER_LENGTH,
215 PCI_DMA_FROMDEVICE);
216 skb_put(skb, desc->length);
217
218#ifdef DEBUG_PKT
219 printk(KERN_DEBUG "%s RX(%i):", dev->name,
220 skb->len);
221 debug_frame(skb);
222#endif
223 dev->stats.rx_packets++;
224 dev->stats.rx_bytes += skb->len;
225 skb->protocol = hdlc_type_trans(skb, dev);
226 netif_rx(skb);
227 skb = NULL;
228 }
229
230 if (!skb) {
231 skb = dev_alloc_skb(BUFFER_LENGTH);
232 desc->address = skb ?
233 pci_map_single(card->pdev, skb->data,
234 BUFFER_LENGTH,
235 PCI_DMA_FROMDEVICE) : 0;
236 card->rx_skbs[card->rx_in] = skb;
237 }
238 }
239 desc->stat = PACKET_EMPTY;
240 card->rx_in = (card->rx_in + 1) % RX_QUEUE_LENGTH;
241 }
242}
243
244
245
246static irqreturn_t wanxl_intr(int irq, void* dev_id)
247{
248 struct card *card = dev_id;
249 int i;
250 u32 stat;
251 int handled = 0;
252
253
254 while((stat = readl(card->plx + PLX_DOORBELL_FROM_CARD)) != 0) {
255 handled = 1;
256 writel(stat, card->plx + PLX_DOORBELL_FROM_CARD);
257
258 for (i = 0; i < card->n_ports; i++) {
259 if (stat & (1 << (DOORBELL_FROM_CARD_TX_0 + i)))
260 wanxl_tx_intr(&card->ports[i]);
261 if (stat & (1 << (DOORBELL_FROM_CARD_CABLE_0 + i)))
262 wanxl_cable_intr(&card->ports[i]);
263 }
264 if (stat & (1 << DOORBELL_FROM_CARD_RX))
265 wanxl_rx_intr(card);
266 }
267
268 return IRQ_RETVAL(handled);
269}
270
271
272
273static netdev_tx_t wanxl_xmit(struct sk_buff *skb, struct net_device *dev)
274{
275 struct port *port = dev_to_port(dev);
276 desc_t *desc;
277
278 spin_lock(&port->lock);
279
280 desc = &get_status(port)->tx_descs[port->tx_out];
281 if (desc->stat != PACKET_EMPTY) {
282
283#ifdef DEBUG_PKT
284 printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name);
285#endif
286 netif_stop_queue(dev);
287 spin_unlock(&port->lock);
288 return NETDEV_TX_BUSY;
289 }
290
291#ifdef DEBUG_PKT
292 printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len);
293 debug_frame(skb);
294#endif
295
296 port->tx_skbs[port->tx_out] = skb;
297 desc->address = pci_map_single(port->card->pdev, skb->data, skb->len,
298 PCI_DMA_TODEVICE);
299 desc->length = skb->len;
300 desc->stat = PACKET_FULL;
301 writel(1 << (DOORBELL_TO_CARD_TX_0 + port->node),
302 port->card->plx + PLX_DOORBELL_TO_CARD);
303
304 port->tx_out = (port->tx_out + 1) % TX_BUFFERS;
305
306 if (get_status(port)->tx_descs[port->tx_out].stat != PACKET_EMPTY) {
307 netif_stop_queue(dev);
308#ifdef DEBUG_PKT
309 printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name);
310#endif
311 }
312
313 spin_unlock(&port->lock);
314 return NETDEV_TX_OK;
315}
316
317
318
319static int wanxl_attach(struct net_device *dev, unsigned short encoding,
320 unsigned short parity)
321{
322 struct port *port = dev_to_port(dev);
323
324 if (encoding != ENCODING_NRZ &&
325 encoding != ENCODING_NRZI)
326 return -EINVAL;
327
328 if (parity != PARITY_NONE &&
329 parity != PARITY_CRC32_PR1_CCITT &&
330 parity != PARITY_CRC16_PR1_CCITT &&
331 parity != PARITY_CRC32_PR0_CCITT &&
332 parity != PARITY_CRC16_PR0_CCITT)
333 return -EINVAL;
334
335 get_status(port)->encoding = encoding;
336 get_status(port)->parity = parity;
337 return 0;
338}
339
340
341
342static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
343{
344 const size_t size = sizeof(sync_serial_settings);
345 sync_serial_settings line;
346 struct port *port = dev_to_port(dev);
347
348 if (cmd != SIOCWANDEV)
349 return hdlc_ioctl(dev, ifr, cmd);
350
351 switch (ifr->ifr_settings.type) {
352 case IF_GET_IFACE:
353 ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
354 if (ifr->ifr_settings.size < size) {
355 ifr->ifr_settings.size = size;
356 return -ENOBUFS;
357 }
358 memset(&line, 0, sizeof(line));
359 line.clock_type = get_status(port)->clocking;
360 line.clock_rate = 0;
361 line.loopback = 0;
362
363 if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &line, size))
364 return -EFAULT;
365 return 0;
366
367 case IF_IFACE_SYNC_SERIAL:
368 if (!capable(CAP_NET_ADMIN))
369 return -EPERM;
370 if (dev->flags & IFF_UP)
371 return -EBUSY;
372
373 if (copy_from_user(&line, ifr->ifr_settings.ifs_ifsu.sync,
374 size))
375 return -EFAULT;
376
377 if (line.clock_type != CLOCK_EXT &&
378 line.clock_type != CLOCK_TXFROMRX)
379 return -EINVAL;
380
381 if (line.loopback != 0)
382 return -EINVAL;
383
384 get_status(port)->clocking = line.clock_type;
385 return 0;
386
387 default:
388 return hdlc_ioctl(dev, ifr, cmd);
389 }
390}
391
392
393
394static int wanxl_open(struct net_device *dev)
395{
396 struct port *port = dev_to_port(dev);
397 u8 __iomem *dbr = port->card->plx + PLX_DOORBELL_TO_CARD;
398 unsigned long timeout;
399 int i;
400
401 if (get_status(port)->open) {
402 netdev_err(dev, "port already open\n");
403 return -EIO;
404 }
405 if ((i = hdlc_open(dev)) != 0)
406 return i;
407
408 port->tx_in = port->tx_out = 0;
409 for (i = 0; i < TX_BUFFERS; i++)
410 get_status(port)->tx_descs[i].stat = PACKET_EMPTY;
411
412 writel(1 << (DOORBELL_TO_CARD_OPEN_0 + port->node), dbr);
413
414 timeout = jiffies + HZ;
415 do {
416 if (get_status(port)->open) {
417 netif_start_queue(dev);
418 return 0;
419 }
420 } while (time_after(timeout, jiffies));
421
422 netdev_err(dev, "unable to open port\n");
423
424 writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node), dbr);
425 return -EFAULT;
426}
427
428
429
430static int wanxl_close(struct net_device *dev)
431{
432 struct port *port = dev_to_port(dev);
433 unsigned long timeout;
434 int i;
435
436 hdlc_close(dev);
437
438 writel(1 << (DOORBELL_TO_CARD_CLOSE_0 + port->node),
439 port->card->plx + PLX_DOORBELL_TO_CARD);
440
441 timeout = jiffies + HZ;
442 do {
443 if (!get_status(port)->open)
444 break;
445 } while (time_after(timeout, jiffies));
446
447 if (get_status(port)->open)
448 netdev_err(dev, "unable to close port\n");
449
450 netif_stop_queue(dev);
451
452 for (i = 0; i < TX_BUFFERS; i++) {
453 desc_t *desc = &get_status(port)->tx_descs[i];
454
455 if (desc->stat != PACKET_EMPTY) {
456 desc->stat = PACKET_EMPTY;
457 pci_unmap_single(port->card->pdev, desc->address,
458 port->tx_skbs[i]->len,
459 PCI_DMA_TODEVICE);
460 dev_kfree_skb(port->tx_skbs[i]);
461 }
462 }
463 return 0;
464}
465
466
467
468static struct net_device_stats *wanxl_get_stats(struct net_device *dev)
469{
470 struct port *port = dev_to_port(dev);
471
472 dev->stats.rx_over_errors = get_status(port)->rx_overruns;
473 dev->stats.rx_frame_errors = get_status(port)->rx_frame_errors;
474 dev->stats.rx_errors = dev->stats.rx_over_errors +
475 dev->stats.rx_frame_errors;
476 return &dev->stats;
477}
478
479
480
481static int wanxl_puts_command(struct card *card, u32 cmd)
482{
483 unsigned long timeout = jiffies + 5 * HZ;
484
485 writel(cmd, card->plx + PLX_MAILBOX_1);
486 do {
487 if (readl(card->plx + PLX_MAILBOX_1) == 0)
488 return 0;
489
490 schedule();
491 }while (time_after(timeout, jiffies));
492
493 return -1;
494}
495
496
497
498static void wanxl_reset(struct card *card)
499{
500 u32 old_value = readl(card->plx + PLX_CONTROL) & ~PLX_CTL_RESET;
501
502 writel(0x80, card->plx + PLX_MAILBOX_0);
503 writel(old_value | PLX_CTL_RESET, card->plx + PLX_CONTROL);
504 readl(card->plx + PLX_CONTROL);
505 udelay(1);
506 writel(old_value, card->plx + PLX_CONTROL);
507 readl(card->plx + PLX_CONTROL);
508}
509
510
511
512static void wanxl_pci_remove_one(struct pci_dev *pdev)
513{
514 struct card *card = pci_get_drvdata(pdev);
515 int i;
516
517 for (i = 0; i < card->n_ports; i++) {
518 unregister_hdlc_device(card->ports[i].dev);
519 free_netdev(card->ports[i].dev);
520 }
521
522
523 if (card->irq)
524 free_irq(card->irq, card);
525
526 wanxl_reset(card);
527
528 for (i = 0; i < RX_QUEUE_LENGTH; i++)
529 if (card->rx_skbs[i]) {
530 pci_unmap_single(card->pdev,
531 card->status->rx_descs[i].address,
532 BUFFER_LENGTH, PCI_DMA_FROMDEVICE);
533 dev_kfree_skb(card->rx_skbs[i]);
534 }
535
536 if (card->plx)
537 iounmap(card->plx);
538
539 if (card->status)
540 pci_free_consistent(pdev, sizeof(struct card_status),
541 card->status, card->status_address);
542
543 pci_release_regions(pdev);
544 pci_disable_device(pdev);
545 kfree(card);
546}
547
548
549#include "wanxlfw.inc"
550
551static const struct net_device_ops wanxl_ops = {
552 .ndo_open = wanxl_open,
553 .ndo_stop = wanxl_close,
554 .ndo_start_xmit = hdlc_start_xmit,
555 .ndo_do_ioctl = wanxl_ioctl,
556 .ndo_get_stats = wanxl_get_stats,
557};
558
559static int wanxl_pci_init_one(struct pci_dev *pdev,
560 const struct pci_device_id *ent)
561{
562 struct card *card;
563 u32 ramsize, stat;
564 unsigned long timeout;
565 u32 plx_phy;
566 u32 mem_phy;
567 u8 __iomem *mem;
568 int i, ports, alloc_size;
569
570#ifndef MODULE
571 pr_info_once("%s\n", version);
572#endif
573
574 i = pci_enable_device(pdev);
575 if (i)
576 return i;
577
578
579
580
581
582
583
584
585 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(28)) ||
586 pci_set_dma_mask(pdev, DMA_BIT_MASK(28))) {
587 pr_err("No usable DMA configuration\n");
588 pci_disable_device(pdev);
589 return -EIO;
590 }
591
592 i = pci_request_regions(pdev, "wanXL");
593 if (i) {
594 pci_disable_device(pdev);
595 return i;
596 }
597
598 switch (pdev->device) {
599 case PCI_DEVICE_ID_SBE_WANXL100: ports = 1; break;
600 case PCI_DEVICE_ID_SBE_WANXL200: ports = 2; break;
601 default: ports = 4;
602 }
603
604 alloc_size = sizeof(struct card) + ports * sizeof(struct port);
605 card = kzalloc(alloc_size, GFP_KERNEL);
606 if (card == NULL) {
607 pci_release_regions(pdev);
608 pci_disable_device(pdev);
609 return -ENOBUFS;
610 }
611
612 pci_set_drvdata(pdev, card);
613 card->pdev = pdev;
614
615 card->status = pci_alloc_consistent(pdev,
616 sizeof(struct card_status),
617 &card->status_address);
618 if (card->status == NULL) {
619 wanxl_pci_remove_one(pdev);
620 return -ENOBUFS;
621 }
622
623#ifdef DEBUG_PCI
624 printk(KERN_DEBUG "wanXL %s: pci_alloc_consistent() returned memory"
625 " at 0x%LX\n", pci_name(pdev),
626 (unsigned long long)card->status_address);
627#endif
628
629
630
631
632 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) ||
633 pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
634 pr_err("No usable DMA configuration\n");
635 wanxl_pci_remove_one(pdev);
636 return -EIO;
637 }
638
639
640 plx_phy = pci_resource_start(pdev, 0);
641
642 card->plx = ioremap_nocache(plx_phy, 0x70);
643 if (!card->plx) {
644 pr_err("ioremap() failed\n");
645 wanxl_pci_remove_one(pdev);
646 return -EFAULT;
647 }
648
649#if RESET_WHILE_LOADING
650 wanxl_reset(card);
651#endif
652
653 timeout = jiffies + 20 * HZ;
654 while ((stat = readl(card->plx + PLX_MAILBOX_0)) != 0) {
655 if (time_before(timeout, jiffies)) {
656 pr_warn("%s: timeout waiting for PUTS to complete\n",
657 pci_name(pdev));
658 wanxl_pci_remove_one(pdev);
659 return -ENODEV;
660 }
661
662 switch(stat & 0xC0) {
663 case 0x00:
664 case 0x80:
665 break;
666
667 default:
668 pr_warn("%s: PUTS test 0x%X failed\n",
669 pci_name(pdev), stat & 0x30);
670 wanxl_pci_remove_one(pdev);
671 return -ENODEV;
672 }
673
674 schedule();
675 }
676
677
678 ramsize = readl(card->plx + PLX_MAILBOX_2) & MBX2_MEMSZ_MASK;
679
680
681 mem_phy = pci_resource_start(pdev, 2);
682
683
684
685 if (ramsize < BUFFERS_ADDR +
686 (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports) {
687 pr_warn("%s: no enough on-board RAM (%u bytes detected, %u bytes required)\n",
688 pci_name(pdev), ramsize,
689 BUFFERS_ADDR +
690 (TX_BUFFERS + RX_BUFFERS) * BUFFER_LENGTH * ports);
691 wanxl_pci_remove_one(pdev);
692 return -ENODEV;
693 }
694
695 if (wanxl_puts_command(card, MBX1_CMD_BSWAP)) {
696 pr_warn("%s: unable to Set Byte Swap Mode\n", pci_name(pdev));
697 wanxl_pci_remove_one(pdev);
698 return -ENODEV;
699 }
700
701 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
702 struct sk_buff *skb = dev_alloc_skb(BUFFER_LENGTH);
703 card->rx_skbs[i] = skb;
704 if (skb)
705 card->status->rx_descs[i].address =
706 pci_map_single(card->pdev, skb->data,
707 BUFFER_LENGTH,
708 PCI_DMA_FROMDEVICE);
709 }
710
711 mem = ioremap_nocache(mem_phy, PDM_OFFSET + sizeof(firmware));
712 if (!mem) {
713 pr_err("ioremap() failed\n");
714 wanxl_pci_remove_one(pdev);
715 return -EFAULT;
716 }
717
718 for (i = 0; i < sizeof(firmware); i += 4)
719 writel(ntohl(*(__be32*)(firmware + i)), mem + PDM_OFFSET + i);
720
721 for (i = 0; i < ports; i++)
722 writel(card->status_address +
723 (void *)&card->status->port_status[i] -
724 (void *)card->status, mem + PDM_OFFSET + 4 + i * 4);
725 writel(card->status_address, mem + PDM_OFFSET + 20);
726 writel(PDM_OFFSET, mem);
727 iounmap(mem);
728
729 writel(0, card->plx + PLX_MAILBOX_5);
730
731 if (wanxl_puts_command(card, MBX1_CMD_ABORTJ)) {
732 pr_warn("%s: unable to Abort and Jump\n", pci_name(pdev));
733 wanxl_pci_remove_one(pdev);
734 return -ENODEV;
735 }
736
737 stat = 0;
738 timeout = jiffies + 5 * HZ;
739 do {
740 if ((stat = readl(card->plx + PLX_MAILBOX_5)) != 0)
741 break;
742 schedule();
743 }while (time_after(timeout, jiffies));
744
745 if (!stat) {
746 pr_warn("%s: timeout while initializing card firmware\n",
747 pci_name(pdev));
748 wanxl_pci_remove_one(pdev);
749 return -ENODEV;
750 }
751
752#if DETECT_RAM
753 ramsize = stat;
754#endif
755
756 pr_info("%s: at 0x%X, %u KB of RAM at 0x%X, irq %u\n",
757 pci_name(pdev), plx_phy, ramsize / 1024, mem_phy, pdev->irq);
758
759
760 if (request_irq(pdev->irq, wanxl_intr, IRQF_SHARED, "wanXL", card)) {
761 pr_warn("%s: could not allocate IRQ%i\n",
762 pci_name(pdev), pdev->irq);
763 wanxl_pci_remove_one(pdev);
764 return -EBUSY;
765 }
766 card->irq = pdev->irq;
767
768 for (i = 0; i < ports; i++) {
769 hdlc_device *hdlc;
770 struct port *port = &card->ports[i];
771 struct net_device *dev = alloc_hdlcdev(port);
772 if (!dev) {
773 pr_err("%s: unable to allocate memory\n",
774 pci_name(pdev));
775 wanxl_pci_remove_one(pdev);
776 return -ENOMEM;
777 }
778
779 port->dev = dev;
780 hdlc = dev_to_hdlc(dev);
781 spin_lock_init(&port->lock);
782 dev->tx_queue_len = 50;
783 dev->netdev_ops = &wanxl_ops;
784 hdlc->attach = wanxl_attach;
785 hdlc->xmit = wanxl_xmit;
786 port->card = card;
787 port->node = i;
788 get_status(port)->clocking = CLOCK_EXT;
789 if (register_hdlc_device(dev)) {
790 pr_err("%s: unable to register hdlc device\n",
791 pci_name(pdev));
792 free_netdev(dev);
793 wanxl_pci_remove_one(pdev);
794 return -ENOBUFS;
795 }
796 card->n_ports++;
797 }
798
799 pr_info("%s: port", pci_name(pdev));
800 for (i = 0; i < ports; i++)
801 pr_cont("%s #%i: %s",
802 i ? "," : "", i, card->ports[i].dev->name);
803 pr_cont("\n");
804
805 for (i = 0; i < ports; i++)
806 wanxl_cable_intr(&card->ports[i]);
807
808 return 0;
809}
810
811static const struct pci_device_id wanxl_pci_tbl[] = {
812 { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL100, PCI_ANY_ID,
813 PCI_ANY_ID, 0, 0, 0 },
814 { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL200, PCI_ANY_ID,
815 PCI_ANY_ID, 0, 0, 0 },
816 { PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_SBE_WANXL400, PCI_ANY_ID,
817 PCI_ANY_ID, 0, 0, 0 },
818 { 0, }
819};
820
821
822static struct pci_driver wanxl_pci_driver = {
823 .name = "wanXL",
824 .id_table = wanxl_pci_tbl,
825 .probe = wanxl_pci_init_one,
826 .remove = wanxl_pci_remove_one,
827};
828
829
830static int __init wanxl_init_module(void)
831{
832#ifdef MODULE
833 pr_info("%s\n", version);
834#endif
835 return pci_register_driver(&wanxl_pci_driver);
836}
837
838static void __exit wanxl_cleanup_module(void)
839{
840 pci_unregister_driver(&wanxl_pci_driver);
841}
842
843
844MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
845MODULE_DESCRIPTION("SBE Inc. wanXL serial port driver");
846MODULE_LICENSE("GPL v2");
847MODULE_DEVICE_TABLE(pci, wanxl_pci_tbl);
848
849module_init(wanxl_init_module);
850module_exit(wanxl_cleanup_module);
851
