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PM: Rename dev_pm_info.in_suspend to is_prepared
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / atm / solos-pci.c
blobcd0ff66469b29b84cd83c894b8139fdda98100fb
1 /*
2 * Driver for the Solos PCI ADSL2+ card, designed to support Linux by
3 * Traverse Technologies -- http://www.traverse.com.au/
4 * Xrio Limited -- http://www.xrio.com/
5 *
6 *
7 * Copyright © 2008 Traverse Technologies
8 * Copyright © 2008 Intel Corporation
9 *
10 * Authors: Nathan Williams <nathan@traverse.com.au>
11 * David Woodhouse <dwmw2@infradead.org>
12 * Treker Chen <treker@xrio.com>
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * version 2, as published by the Free Software Foundation.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 */
23
24 #define DEBUG
25 #define VERBOSE_DEBUG
26
27 #include <linux/interrupt.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/errno.h>
31 #include <linux/ioport.h>
32 #include <linux/types.h>
33 #include <linux/pci.h>
34 #include <linux/atm.h>
35 #include <linux/atmdev.h>
36 #include <linux/skbuff.h>
37 #include <linux/sysfs.h>
38 #include <linux/device.h>
39 #include <linux/kobject.h>
40 #include <linux/firmware.h>
41 #include <linux/ctype.h>
42 #include <linux/swab.h>
43 #include <linux/slab.h>
44
45 #define VERSION "0.07"
46 #define PTAG "solos-pci"
47
48 #define CONFIG_RAM_SIZE 128
49 #define FLAGS_ADDR 0x7C
50 #define IRQ_EN_ADDR 0x78
51 #define FPGA_VER 0x74
52 #define IRQ_CLEAR 0x70
53 #define WRITE_FLASH 0x6C
54 #define PORTS 0x68
55 #define FLASH_BLOCK 0x64
56 #define FLASH_BUSY 0x60
57 #define FPGA_MODE 0x5C
58 #define FLASH_MODE 0x58
59 #define TX_DMA_ADDR(port) (0x40 + (4 * (port)))
60 #define RX_DMA_ADDR(port) (0x30 + (4 * (port)))
61
62 #define DATA_RAM_SIZE 32768
63 #define BUF_SIZE 2048
64 #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/
65 #define FPGA_PAGE 528 /* FPGA flash page size*/
66 #define SOLOS_PAGE 512 /* Solos flash page size*/
67 #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/
68 #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/
69
70 #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2)
71 #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size))
72 #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2)
73
74 #define RX_DMA_SIZE 2048
75
76 #define FPGA_VERSION(a,b) (((a) << 8) + (b))
77 #define LEGACY_BUFFERS 2
78 #define DMA_SUPPORTED 4
79
80 static int reset = 0;
81 static int atmdebug = 0;
82 static int firmware_upgrade = 0;
83 static int fpga_upgrade = 0;
84 static int db_firmware_upgrade = 0;
85 static int db_fpga_upgrade = 0;
86
87 struct pkt_hdr {
88 __le16 size;
89 __le16 vpi;
90 __le16 vci;
91 __le16 type;
92 };
93
94 struct solos_skb_cb {
95 struct atm_vcc *vcc;
96 uint32_t dma_addr;
97 };
98
99
100 #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb)
101
102 #define PKT_DATA 0
103 #define PKT_COMMAND 1
104 #define PKT_POPEN 3
105 #define PKT_PCLOSE 4
106 #define PKT_STATUS 5
107
108 struct solos_card {
109 void __iomem *config_regs;
110 void __iomem *buffers;
111 int nr_ports;
112 int tx_mask;
113 struct pci_dev *dev;
114 struct atm_dev *atmdev[4];
115 struct tasklet_struct tlet;
116 spinlock_t tx_lock;
117 spinlock_t tx_queue_lock;
118 spinlock_t cli_queue_lock;
119 spinlock_t param_queue_lock;
120 struct list_head param_queue;
121 struct sk_buff_head tx_queue[4];
122 struct sk_buff_head cli_queue[4];
123 struct sk_buff *tx_skb[4];
124 struct sk_buff *rx_skb[4];
125 wait_queue_head_t param_wq;
126 wait_queue_head_t fw_wq;
127 int using_dma;
128 int fpga_version;
129 int buffer_size;
130 };
131
132
133 struct solos_param {
134 struct list_head list;
135 pid_t pid;
136 int port;
137 struct sk_buff *response;
138 };
139
140 #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
141
142 MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
143 MODULE_DESCRIPTION("Solos PCI driver");
144 MODULE_VERSION(VERSION);
145 MODULE_LICENSE("GPL");
146 MODULE_FIRMWARE("solos-FPGA.bin");
147 MODULE_FIRMWARE("solos-Firmware.bin");
148 MODULE_FIRMWARE("solos-db-FPGA.bin");
149 MODULE_PARM_DESC(reset, "Reset Solos chips on startup");
150 MODULE_PARM_DESC(atmdebug, "Print ATM data");
151 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
152 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
153 MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade");
154 MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade");
155 module_param(reset, int, 0444);
156 module_param(atmdebug, int, 0644);
157 module_param(firmware_upgrade, int, 0444);
158 module_param(fpga_upgrade, int, 0444);
159 module_param(db_firmware_upgrade, int, 0444);
160 module_param(db_fpga_upgrade, int, 0444);
161
162 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
163 struct atm_vcc *vcc);
164 static uint32_t fpga_tx(struct solos_card *);
165 static irqreturn_t solos_irq(int irq, void *dev_id);
166 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
167 static int list_vccs(int vci);
168 static int atm_init(struct solos_card *, struct device *);
169 static void atm_remove(struct solos_card *);
170 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
171 static void solos_bh(unsigned long);
172 static int print_buffer(struct sk_buff *buf);
173
174 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
175 {
176 if (vcc->pop)
177 vcc->pop(vcc, skb);
178 else
179 dev_kfree_skb_any(skb);
180 }
181
182 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
183 char *buf)
184 {
185 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
186 struct solos_card *card = atmdev->dev_data;
187 struct solos_param prm;
188 struct sk_buff *skb;
189 struct pkt_hdr *header;
190 int buflen;
191
192 buflen = strlen(attr->attr.name) + 10;
193
194 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
195 if (!skb) {
196 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
197 return -ENOMEM;
198 }
199
200 header = (void *)skb_put(skb, sizeof(*header));
201
202 buflen = snprintf((void *)&header[1], buflen - 1,
203 "L%05d\n%s\n", current->pid, attr->attr.name);
204 skb_put(skb, buflen);
205
206 header->size = cpu_to_le16(buflen);
207 header->vpi = cpu_to_le16(0);
208 header->vci = cpu_to_le16(0);
209 header->type = cpu_to_le16(PKT_COMMAND);
210
211 prm.pid = current->pid;
212 prm.response = NULL;
213 prm.port = SOLOS_CHAN(atmdev);
214
215 spin_lock_irq(&card->param_queue_lock);
216 list_add(&prm.list, &card->param_queue);
217 spin_unlock_irq(&card->param_queue_lock);
218
219 fpga_queue(card, prm.port, skb, NULL);
220
221 wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
222
223 spin_lock_irq(&card->param_queue_lock);
224 list_del(&prm.list);
225 spin_unlock_irq(&card->param_queue_lock);
226
227 if (!prm.response)
228 return -EIO;
229
230 buflen = prm.response->len;
231 memcpy(buf, prm.response->data, buflen);
232 kfree_skb(prm.response);
233
234 return buflen;
235 }
236
237 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
238 const char *buf, size_t count)
239 {
240 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
241 struct solos_card *card = atmdev->dev_data;
242 struct solos_param prm;
243 struct sk_buff *skb;
244 struct pkt_hdr *header;
245 int buflen;
246 ssize_t ret;
247
248 buflen = strlen(attr->attr.name) + 11 + count;
249
250 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
251 if (!skb) {
252 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
253 return -ENOMEM;
254 }
255
256 header = (void *)skb_put(skb, sizeof(*header));
257
258 buflen = snprintf((void *)&header[1], buflen - 1,
259 "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
260
261 skb_put(skb, buflen);
262 header->size = cpu_to_le16(buflen);
263 header->vpi = cpu_to_le16(0);
264 header->vci = cpu_to_le16(0);
265 header->type = cpu_to_le16(PKT_COMMAND);
266
267 prm.pid = current->pid;
268 prm.response = NULL;
269 prm.port = SOLOS_CHAN(atmdev);
270
271 spin_lock_irq(&card->param_queue_lock);
272 list_add(&prm.list, &card->param_queue);
273 spin_unlock_irq(&card->param_queue_lock);
274
275 fpga_queue(card, prm.port, skb, NULL);
276
277 wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
278
279 spin_lock_irq(&card->param_queue_lock);
280 list_del(&prm.list);
281 spin_unlock_irq(&card->param_queue_lock);
282
283 skb = prm.response;
284
285 if (!skb)
286 return -EIO;
287
288 buflen = skb->len;
289
290 /* Sometimes it has a newline, sometimes it doesn't. */
291 if (skb->data[buflen - 1] == '\n')
292 buflen--;
293
294 if (buflen == 2 && !strncmp(skb->data, "OK", 2))
295 ret = count;
296 else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
297 ret = -EIO;
298 else {
299 /* We know we have enough space allocated for this; we allocated
300 it ourselves */
301 skb->data[buflen] = 0;
302
303 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
304 skb->data);
305 ret = -EIO;
306 }
307 kfree_skb(skb);
308
309 return ret;
310 }
311
312 static char *next_string(struct sk_buff *skb)
313 {
314 int i = 0;
315 char *this = skb->data;
316
317 for (i = 0; i < skb->len; i++) {
318 if (this[i] == '\n') {
319 this[i] = 0;
320 skb_pull(skb, i + 1);
321 return this;
322 }
323 if (!isprint(this[i]))
324 return NULL;
325 }
326 return NULL;
327 }
328
329 /*
330 * Status packet has fields separated by \n, starting with a version number
331 * for the information therein. Fields are....
332 *
333 * packet version
334 * RxBitRate (version >= 1)
335 * TxBitRate (version >= 1)
336 * State (version >= 1)
337 * LocalSNRMargin (version >= 1)
338 * LocalLineAttn (version >= 1)
339 */
340 static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
341 {
342 char *str, *end, *state_str, *snr, *attn;
343 int ver, rate_up, rate_down;
344
345 if (!card->atmdev[port])
346 return -ENODEV;
347
348 str = next_string(skb);
349 if (!str)
350 return -EIO;
351
352 ver = simple_strtol(str, NULL, 10);
353 if (ver < 1) {
354 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
355 ver);
356 return -EIO;
357 }
358
359 str = next_string(skb);
360 if (!str)
361 return -EIO;
362 if (!strcmp(str, "ERROR")) {
363 dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n",
364 port);
365 return 0;
366 }
367
368 rate_down = simple_strtol(str, &end, 10);
369 if (*end)
370 return -EIO;
371
372 str = next_string(skb);
373 if (!str)
374 return -EIO;
375 rate_up = simple_strtol(str, &end, 10);
376 if (*end)
377 return -EIO;
378
379 state_str = next_string(skb);
380 if (!state_str)
381 return -EIO;
382
383 /* Anything but 'Showtime' is down */
384 if (strcmp(state_str, "Showtime")) {
385 atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST);
386 dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str);
387 return 0;
388 }
389
390 snr = next_string(skb);
391 if (!snr)
392 return -EIO;
393 attn = next_string(skb);
394 if (!attn)
395 return -EIO;
396
397 dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n",
398 port, state_str, rate_down/1000, rate_up/1000,
399 snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn);
400
401 card->atmdev[port]->link_rate = rate_down / 424;
402 atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND);
403
404 return 0;
405 }
406
407 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
408 {
409 struct solos_param *prm;
410 unsigned long flags;
411 int cmdpid;
412 int found = 0;
413
414 if (skb->len < 7)
415 return 0;
416
417 if (skb->data[0] != 'L' || !isdigit(skb->data[1]) ||
418 !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
419 !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
420 skb->data[6] != '\n')
421 return 0;
422
423 cmdpid = simple_strtol(&skb->data[1], NULL, 10);
424
425 spin_lock_irqsave(&card->param_queue_lock, flags);
426 list_for_each_entry(prm, &card->param_queue, list) {
427 if (prm->port == port && prm->pid == cmdpid) {
428 prm->response = skb;
429 skb_pull(skb, 7);
430 wake_up(&card->param_wq);
431 found = 1;
432 break;
433 }
434 }
435 spin_unlock_irqrestore(&card->param_queue_lock, flags);
436 return found;
437 }
438
439 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
440 char *buf)
441 {
442 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
443 struct solos_card *card = atmdev->dev_data;
444 struct sk_buff *skb;
445 unsigned int len;
446
447 spin_lock(&card->cli_queue_lock);
448 skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
449 spin_unlock(&card->cli_queue_lock);
450 if(skb == NULL)
451 return sprintf(buf, "No data.\n");
452
453 len = skb->len;
454 memcpy(buf, skb->data, len);
455 dev_dbg(&card->dev->dev, "len: %d\n", len);
456
457 kfree_skb(skb);
458 return len;
459 }
460
461 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
462 {
463 struct sk_buff *skb;
464 struct pkt_hdr *header;
465
466 if (size > (BUF_SIZE - sizeof(*header))) {
467 dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n");
468 return 0;
469 }
470 skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
471 if (!skb) {
472 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
473 return 0;
474 }
475
476 header = (void *)skb_put(skb, sizeof(*header));
477
478 header->size = cpu_to_le16(size);
479 header->vpi = cpu_to_le16(0);
480 header->vci = cpu_to_le16(0);
481 header->type = cpu_to_le16(PKT_COMMAND);
482
483 memcpy(skb_put(skb, size), buf, size);
484
485 fpga_queue(card, dev, skb, NULL);
486
487 return 0;
488 }
489
490 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
491 const char *buf, size_t count)
492 {
493 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
494 struct solos_card *card = atmdev->dev_data;
495 int err;
496
497 err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
498
499 return err?:count;
500 }
501
502 static DEVICE_ATTR(console, 0644, console_show, console_store);
503
504
505 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
506 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
507
508 #include "solos-attrlist.c"
509
510 #undef SOLOS_ATTR_RO
511 #undef SOLOS_ATTR_RW
512
513 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
514 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
515
516 static struct attribute *solos_attrs[] = {
517 #include "solos-attrlist.c"
518 NULL
519 };
520
521 static struct attribute_group solos_attr_group = {
522 .attrs = solos_attrs,
523 .name = "parameters",
524 };
525
526 static int flash_upgrade(struct solos_card *card, int chip)
527 {
528 const struct firmware *fw;
529 const char *fw_name;
530 uint32_t data32 = 0;
531 int blocksize = 0;
532 int numblocks = 0;
533 int offset;
534
535 switch (chip) {
536 case 0:
537 fw_name = "solos-FPGA.bin";
538 blocksize = FPGA_BLOCK;
539 break;
540 case 1:
541 fw_name = "solos-Firmware.bin";
542 blocksize = SOLOS_BLOCK;
543 break;
544 case 2:
545 if (card->fpga_version > LEGACY_BUFFERS){
546 fw_name = "solos-db-FPGA.bin";
547 blocksize = FPGA_BLOCK;
548 } else {
549 dev_info(&card->dev->dev, "FPGA version doesn't support"
550 " daughter board upgrades\n");
551 return -EPERM;
552 }
553 break;
554 case 3:
555 if (card->fpga_version > LEGACY_BUFFERS){
556 fw_name = "solos-Firmware.bin";
557 blocksize = SOLOS_BLOCK;
558 } else {
559 dev_info(&card->dev->dev, "FPGA version doesn't support"
560 " daughter board upgrades\n");
561 return -EPERM;
562 }
563 break;
564 default:
565 return -ENODEV;
566 }
567
568 if (request_firmware(&fw, fw_name, &card->dev->dev))
569 return -ENOENT;
570
571 dev_info(&card->dev->dev, "Flash upgrade starting\n");
572
573 numblocks = fw->size / blocksize;
574 dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
575 dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
576
577 dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
578 iowrite32(1, card->config_regs + FPGA_MODE);
579 data32 = ioread32(card->config_regs + FPGA_MODE);
580
581 /* Set mode to Chip Erase */
582 if(chip == 0 || chip == 2)
583 dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n");
584 if(chip == 1 || chip == 3)
585 dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n");
586 iowrite32((chip * 2), card->config_regs + FLASH_MODE);
587
588
589 iowrite32(1, card->config_regs + WRITE_FLASH);
590 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
591
592 for (offset = 0; offset < fw->size; offset += blocksize) {
593 int i;
594
595 /* Clear write flag */
596 iowrite32(0, card->config_regs + WRITE_FLASH);
597
598 /* Set mode to Block Write */
599 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
600 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
601
602 /* Copy block to buffer, swapping each 16 bits */
603 for(i = 0; i < blocksize; i += 4) {
604 uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
605 if(card->fpga_version > LEGACY_BUFFERS)
606 iowrite32(word, FLASH_BUF + i);
607 else
608 iowrite32(word, RX_BUF(card, 3) + i);
609 }
610
611 /* Specify block number and then trigger flash write */
612 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
613 iowrite32(1, card->config_regs + WRITE_FLASH);
614 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
615 }
616
617 release_firmware(fw);
618 iowrite32(0, card->config_regs + WRITE_FLASH);
619 iowrite32(0, card->config_regs + FPGA_MODE);
620 iowrite32(0, card->config_regs + FLASH_MODE);
621 dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
622 return 0;
623 }
624
625 static irqreturn_t solos_irq(int irq, void *dev_id)
626 {
627 struct solos_card *card = dev_id;
628 int handled = 1;
629
630 iowrite32(0, card->config_regs + IRQ_CLEAR);
631
632 /* If we're up and running, just kick the tasklet to process TX/RX */
633 if (card->atmdev[0])
634 tasklet_schedule(&card->tlet);
635 else
636 wake_up(&card->fw_wq);
637
638 return IRQ_RETVAL(handled);
639 }
640
641 void solos_bh(unsigned long card_arg)
642 {
643 struct solos_card *card = (void *)card_arg;
644 uint32_t card_flags;
645 uint32_t rx_done = 0;
646 int port;
647
648 /*
649 * Since fpga_tx() is going to need to read the flags under its lock,
650 * it can return them to us so that we don't have to hit PCI MMIO
651 * again for the same information
652 */
653 card_flags = fpga_tx(card);
654
655 for (port = 0; port < card->nr_ports; port++) {
656 if (card_flags & (0x10 << port)) {
657 struct pkt_hdr _hdr, *header;
658 struct sk_buff *skb;
659 struct atm_vcc *vcc;
660 int size;
661
662 if (card->using_dma) {
663 skb = card->rx_skb[port];
664 card->rx_skb[port] = NULL;
665
666 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
667 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
668
669 header = (void *)skb->data;
670 size = le16_to_cpu(header->size);
671 skb_put(skb, size + sizeof(*header));
672 skb_pull(skb, sizeof(*header));
673 } else {
674 header = &_hdr;
675
676 rx_done |= 0x10 << port;
677
678 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
679
680 size = le16_to_cpu(header->size);
681 if (size > (card->buffer_size - sizeof(*header))){
682 dev_warn(&card->dev->dev, "Invalid buffer size\n");
683 continue;
684 }
685
686 skb = alloc_skb(size + 1, GFP_ATOMIC);
687 if (!skb) {
688 if (net_ratelimit())
689 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
690 continue;
691 }
692
693 memcpy_fromio(skb_put(skb, size),
694 RX_BUF(card, port) + sizeof(*header),
695 size);
696 }
697 if (atmdebug) {
698 dev_info(&card->dev->dev, "Received: port %d\n", port);
699 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
700 size, le16_to_cpu(header->vpi),
701 le16_to_cpu(header->vci));
702 print_buffer(skb);
703 }
704
705 switch (le16_to_cpu(header->type)) {
706 case PKT_DATA:
707 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
708 le16_to_cpu(header->vci));
709 if (!vcc) {
710 if (net_ratelimit())
711 dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n",
712 le16_to_cpu(header->vpi), le16_to_cpu(header->vci),
713 port);
714 continue;
715 }
716 atm_charge(vcc, skb->truesize);
717 vcc->push(vcc, skb);
718 atomic_inc(&vcc->stats->rx);
719 break;
720
721 case PKT_STATUS:
722 if (process_status(card, port, skb) &&
723 net_ratelimit()) {
724 dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port);
725 print_buffer(skb);
726 }
727 dev_kfree_skb_any(skb);
728 break;
729
730 case PKT_COMMAND:
731 default: /* FIXME: Not really, surely? */
732 if (process_command(card, port, skb))
733 break;
734 spin_lock(&card->cli_queue_lock);
735 if (skb_queue_len(&card->cli_queue[port]) > 10) {
736 if (net_ratelimit())
737 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
738 port);
739 dev_kfree_skb_any(skb);
740 } else
741 skb_queue_tail(&card->cli_queue[port], skb);
742 spin_unlock(&card->cli_queue_lock);
743 break;
744 }
745 }
746 /* Allocate RX skbs for any ports which need them */
747 if (card->using_dma && card->atmdev[port] &&
748 !card->rx_skb[port]) {
749 struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
750 if (skb) {
751 SKB_CB(skb)->dma_addr =
752 pci_map_single(card->dev, skb->data,
753 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
754 iowrite32(SKB_CB(skb)->dma_addr,
755 card->config_regs + RX_DMA_ADDR(port));
756 card->rx_skb[port] = skb;
757 } else {
758 if (net_ratelimit())
759 dev_warn(&card->dev->dev, "Failed to allocate RX skb");
760
761 /* We'll have to try again later */
762 tasklet_schedule(&card->tlet);
763 }
764 }
765 }
766 if (rx_done)
767 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
768
769 return;
770 }
771
772 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
773 {
774 struct hlist_head *head;
775 struct atm_vcc *vcc = NULL;
776 struct hlist_node *node;
777 struct sock *s;
778
779 read_lock(&vcc_sklist_lock);
780 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
781 sk_for_each(s, node, head) {
782 vcc = atm_sk(s);
783 if (vcc->dev == dev && vcc->vci == vci &&
784 vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE &&
785 test_bit(ATM_VF_READY, &vcc->flags))
786 goto out;
787 }
788 vcc = NULL;
789 out:
790 read_unlock(&vcc_sklist_lock);
791 return vcc;
792 }
793
794 static int list_vccs(int vci)
795 {
796 struct hlist_head *head;
797 struct atm_vcc *vcc;
798 struct hlist_node *node;
799 struct sock *s;
800 int num_found = 0;
801 int i;
802
803 read_lock(&vcc_sklist_lock);
804 if (vci != 0){
805 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
806 sk_for_each(s, node, head) {
807 num_found ++;
808 vcc = atm_sk(s);
809 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
810 vcc->dev->number,
811 vcc->vpi,
812 vcc->vci);
813 }
814 } else {
815 for(i = 0; i < VCC_HTABLE_SIZE; i++){
816 head = &vcc_hash[i];
817 sk_for_each(s, node, head) {
818 num_found ++;
819 vcc = atm_sk(s);
820 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
821 vcc->dev->number,
822 vcc->vpi,
823 vcc->vci);
824 }
825 }
826 }
827 read_unlock(&vcc_sklist_lock);
828 return num_found;
829 }
830
831
832 static int popen(struct atm_vcc *vcc)
833 {
834 struct solos_card *card = vcc->dev->dev_data;
835 struct sk_buff *skb;
836 struct pkt_hdr *header;
837
838 if (vcc->qos.aal != ATM_AAL5) {
839 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
840 vcc->qos.aal);
841 return -EINVAL;
842 }
843
844 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
845 if (!skb) {
846 if (net_ratelimit())
847 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
848 return -ENOMEM;
849 }
850 header = (void *)skb_put(skb, sizeof(*header));
851
852 header->size = cpu_to_le16(0);
853 header->vpi = cpu_to_le16(vcc->vpi);
854 header->vci = cpu_to_le16(vcc->vci);
855 header->type = cpu_to_le16(PKT_POPEN);
856
857 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
858
859 set_bit(ATM_VF_ADDR, &vcc->flags);
860 set_bit(ATM_VF_READY, &vcc->flags);
861 list_vccs(0);
862
863
864 return 0;
865 }
866
867 static void pclose(struct atm_vcc *vcc)
868 {
869 struct solos_card *card = vcc->dev->dev_data;
870 struct sk_buff *skb;
871 struct pkt_hdr *header;
872
873 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
874 if (!skb) {
875 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
876 return;
877 }
878 header = (void *)skb_put(skb, sizeof(*header));
879
880 header->size = cpu_to_le16(0);
881 header->vpi = cpu_to_le16(vcc->vpi);
882 header->vci = cpu_to_le16(vcc->vci);
883 header->type = cpu_to_le16(PKT_PCLOSE);
884
885 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
886
887 clear_bit(ATM_VF_ADDR, &vcc->flags);
888 clear_bit(ATM_VF_READY, &vcc->flags);
889
890 /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the
891 tasklet has finished processing any incoming packets (and, more to
892 the point, using the vcc pointer). */
893 tasklet_unlock_wait(&card->tlet);
894 return;
895 }
896
897 static int print_buffer(struct sk_buff *buf)
898 {
899 int len,i;
900 char msg[500];
901 char item[10];
902
903 len = buf->len;
904 for (i = 0; i < len; i++){
905 if(i % 8 == 0)
906 sprintf(msg, "%02X: ", i);
907
908 sprintf(item,"%02X ",*(buf->data + i));
909 strcat(msg, item);
910 if(i % 8 == 7) {
911 sprintf(item, "\n");
912 strcat(msg, item);
913 printk(KERN_DEBUG "%s", msg);
914 }
915 }
916 if (i % 8 != 0) {
917 sprintf(item, "\n");
918 strcat(msg, item);
919 printk(KERN_DEBUG "%s", msg);
920 }
921 printk(KERN_DEBUG "\n");
922
923 return 0;
924 }
925
926 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
927 struct atm_vcc *vcc)
928 {
929 int old_len;
930 unsigned long flags;
931
932 SKB_CB(skb)->vcc = vcc;
933
934 spin_lock_irqsave(&card->tx_queue_lock, flags);
935 old_len = skb_queue_len(&card->tx_queue[port]);
936 skb_queue_tail(&card->tx_queue[port], skb);
937 if (!old_len)
938 card->tx_mask |= (1 << port);
939 spin_unlock_irqrestore(&card->tx_queue_lock, flags);
940
941 /* Theoretically we could just schedule the tasklet here, but
942 that introduces latency we don't want -- it's noticeable */
943 if (!old_len)
944 fpga_tx(card);
945 }
946
947 static uint32_t fpga_tx(struct solos_card *card)
948 {
949 uint32_t tx_pending, card_flags;
950 uint32_t tx_started = 0;
951 struct sk_buff *skb;
952 struct atm_vcc *vcc;
953 unsigned char port;
954 unsigned long flags;
955
956 spin_lock_irqsave(&card->tx_lock, flags);
957
958 card_flags = ioread32(card->config_regs + FLAGS_ADDR);
959 /*
960 * The queue lock is required for _writing_ to tx_mask, but we're
961 * OK to read it here without locking. The only potential update
962 * that we could race with is in fpga_queue() where it sets a bit
963 * for a new port... but it's going to call this function again if
964 * it's doing that, anyway.
965 */
966 tx_pending = card->tx_mask & ~card_flags;
967
968 for (port = 0; tx_pending; tx_pending >>= 1, port++) {
969 if (tx_pending & 1) {
970 struct sk_buff *oldskb = card->tx_skb[port];
971 if (oldskb)
972 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
973 oldskb->len, PCI_DMA_TODEVICE);
974
975 spin_lock(&card->tx_queue_lock);
976 skb = skb_dequeue(&card->tx_queue[port]);
977 if (!skb)
978 card->tx_mask &= ~(1 << port);
979 spin_unlock(&card->tx_queue_lock);
980
981 if (skb && !card->using_dma) {
982 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
983 tx_started |= 1 << port;
984 oldskb = skb; /* We're done with this skb already */
985 } else if (skb && card->using_dma) {
986 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
987 skb->len, PCI_DMA_TODEVICE);
988 iowrite32(SKB_CB(skb)->dma_addr,
989 card->config_regs + TX_DMA_ADDR(port));
990 }
991
992 if (!oldskb)
993 continue;
994
995 /* Clean up and free oldskb now it's gone */
996 if (atmdebug) {
997 struct pkt_hdr *header = (void *)oldskb->data;
998 int size = le16_to_cpu(header->size);
999
1000 skb_pull(oldskb, sizeof(*header));
1001 dev_info(&card->dev->dev, "Transmitted: port %d\n",
1002 port);
1003 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
1004 size, le16_to_cpu(header->vpi),
1005 le16_to_cpu(header->vci));
1006 print_buffer(oldskb);
1007 }
1008
1009 vcc = SKB_CB(oldskb)->vcc;
1010
1011 if (vcc) {
1012 atomic_inc(&vcc->stats->tx);
1013 solos_pop(vcc, oldskb);
1014 } else
1015 dev_kfree_skb_irq(oldskb);
1016
1017 }
1018 }
1019 /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */
1020 if (tx_started)
1021 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
1022
1023 spin_unlock_irqrestore(&card->tx_lock, flags);
1024 return card_flags;
1025 }
1026
1027 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
1028 {
1029 struct solos_card *card = vcc->dev->dev_data;
1030 struct pkt_hdr *header;
1031 int pktlen;
1032
1033 pktlen = skb->len;
1034 if (pktlen > (BUF_SIZE - sizeof(*header))) {
1035 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
1036 solos_pop(vcc, skb);
1037 return 0;
1038 }
1039
1040 if (!skb_clone_writable(skb, sizeof(*header))) {
1041 int expand_by = 0;
1042 int ret;
1043
1044 if (skb_headroom(skb) < sizeof(*header))
1045 expand_by = sizeof(*header) - skb_headroom(skb);
1046
1047 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
1048 if (ret) {
1049 dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
1050 solos_pop(vcc, skb);
1051 return ret;
1052 }
1053 }
1054
1055 header = (void *)skb_push(skb, sizeof(*header));
1056
1057 /* This does _not_ include the size of the header */
1058 header->size = cpu_to_le16(pktlen);
1059 header->vpi = cpu_to_le16(vcc->vpi);
1060 header->vci = cpu_to_le16(vcc->vci);
1061 header->type = cpu_to_le16(PKT_DATA);
1062
1063 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1064
1065 return 0;
1066 }
1067
1068 static struct atmdev_ops fpga_ops = {
1069 .open = popen,
1070 .close = pclose,
1071 .ioctl = NULL,
1072 .getsockopt = NULL,
1073 .setsockopt = NULL,
1074 .send = psend,
1075 .send_oam = NULL,
1076 .phy_put = NULL,
1077 .phy_get = NULL,
1078 .change_qos = NULL,
1079 .proc_read = NULL,
1080 .owner = THIS_MODULE
1081 };
1082
1083 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1084 {
1085 int err;
1086 uint16_t fpga_ver;
1087 uint8_t major_ver, minor_ver;
1088 uint32_t data32;
1089 struct solos_card *card;
1090
1091 card = kzalloc(sizeof(*card), GFP_KERNEL);
1092 if (!card)
1093 return -ENOMEM;
1094
1095 card->dev = dev;
1096 init_waitqueue_head(&card->fw_wq);
1097 init_waitqueue_head(&card->param_wq);
1098
1099 err = pci_enable_device(dev);
1100 if (err) {
1101 dev_warn(&dev->dev, "Failed to enable PCI device\n");
1102 goto out;
1103 }
1104
1105 err = pci_set_dma_mask(dev, DMA_BIT_MASK(32));
1106 if (err) {
1107 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1108 goto out;
1109 }
1110
1111 err = pci_request_regions(dev, "solos");
1112 if (err) {
1113 dev_warn(&dev->dev, "Failed to request regions\n");
1114 goto out;
1115 }
1116
1117 card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1118 if (!card->config_regs) {
1119 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1120 goto out_release_regions;
1121 }
1122 card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1123 if (!card->buffers) {
1124 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1125 goto out_unmap_config;
1126 }
1127
1128 if (reset) {
1129 iowrite32(1, card->config_regs + FPGA_MODE);
1130 data32 = ioread32(card->config_regs + FPGA_MODE);
1131
1132 iowrite32(0, card->config_regs + FPGA_MODE);
1133 data32 = ioread32(card->config_regs + FPGA_MODE);
1134 }
1135
1136 data32 = ioread32(card->config_regs + FPGA_VER);
1137 fpga_ver = (data32 & 0x0000FFFF);
1138 major_ver = ((data32 & 0xFF000000) >> 24);
1139 minor_ver = ((data32 & 0x00FF0000) >> 16);
1140 card->fpga_version = FPGA_VERSION(major_ver,minor_ver);
1141 if (card->fpga_version > LEGACY_BUFFERS)
1142 card->buffer_size = BUF_SIZE;
1143 else
1144 card->buffer_size = OLD_BUF_SIZE;
1145 dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1146 major_ver, minor_ver, fpga_ver);
1147
1148 if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade ||
1149 db_fpga_upgrade || db_firmware_upgrade)) {
1150 dev_warn(&dev->dev,
1151 "FPGA too old; cannot upgrade flash. Use JTAG.\n");
1152 fpga_upgrade = firmware_upgrade = 0;
1153 db_fpga_upgrade = db_firmware_upgrade = 0;
1154 }
1155
1156 if (card->fpga_version >= DMA_SUPPORTED){
1157 card->using_dma = 1;
1158 } else {
1159 card->using_dma = 0;
1160 /* Set RX empty flag for all ports */
1161 iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1162 }
1163
1164 data32 = ioread32(card->config_regs + PORTS);
1165 card->nr_ports = (data32 & 0x000000FF);
1166
1167 pci_set_drvdata(dev, card);
1168
1169 tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1170 spin_lock_init(&card->tx_lock);
1171 spin_lock_init(&card->tx_queue_lock);
1172 spin_lock_init(&card->cli_queue_lock);
1173 spin_lock_init(&card->param_queue_lock);
1174 INIT_LIST_HEAD(&card->param_queue);
1175
1176 err = request_irq(dev->irq, solos_irq, IRQF_SHARED,
1177 "solos-pci", card);
1178 if (err) {
1179 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1180 goto out_unmap_both;
1181 }
1182
1183 iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1184
1185 if (fpga_upgrade)
1186 flash_upgrade(card, 0);
1187
1188 if (firmware_upgrade)
1189 flash_upgrade(card, 1);
1190
1191 if (db_fpga_upgrade)
1192 flash_upgrade(card, 2);
1193
1194 if (db_firmware_upgrade)
1195 flash_upgrade(card, 3);
1196
1197 err = atm_init(card, &dev->dev);
1198 if (err)
1199 goto out_free_irq;
1200
1201 return 0;
1202
1203 out_free_irq:
1204 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1205 free_irq(dev->irq, card);
1206 tasklet_kill(&card->tlet);
1207
1208 out_unmap_both:
1209 pci_set_drvdata(dev, NULL);
1210 pci_iounmap(dev, card->config_regs);
1211 out_unmap_config:
1212 pci_iounmap(dev, card->buffers);
1213 out_release_regions:
1214 pci_release_regions(dev);
1215 out:
1216 kfree(card);
1217 return err;
1218 }
1219
1220 static int atm_init(struct solos_card *card, struct device *parent)
1221 {
1222 int i;
1223
1224 for (i = 0; i < card->nr_ports; i++) {
1225 struct sk_buff *skb;
1226 struct pkt_hdr *header;
1227
1228 skb_queue_head_init(&card->tx_queue[i]);
1229 skb_queue_head_init(&card->cli_queue[i]);
1230
1231 card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL);
1232 if (!card->atmdev[i]) {
1233 dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1234 atm_remove(card);
1235 return -ENODEV;
1236 }
1237 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1238 dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1239 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1240 dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1241
1242 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1243
1244 card->atmdev[i]->ci_range.vpi_bits = 8;
1245 card->atmdev[i]->ci_range.vci_bits = 16;
1246 card->atmdev[i]->dev_data = card;
1247 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1248 atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND);
1249
1250 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1251 if (!skb) {
1252 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1253 continue;
1254 }
1255
1256 header = (void *)skb_put(skb, sizeof(*header));
1257
1258 header->size = cpu_to_le16(0);
1259 header->vpi = cpu_to_le16(0);
1260 header->vci = cpu_to_le16(0);
1261 header->type = cpu_to_le16(PKT_STATUS);
1262
1263 fpga_queue(card, i, skb, NULL);
1264 }
1265 return 0;
1266 }
1267
1268 static void atm_remove(struct solos_card *card)
1269 {
1270 int i;
1271
1272 for (i = 0; i < card->nr_ports; i++) {
1273 if (card->atmdev[i]) {
1274 struct sk_buff *skb;
1275
1276 dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1277
1278 sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1279 atm_dev_deregister(card->atmdev[i]);
1280
1281 skb = card->rx_skb[i];
1282 if (skb) {
1283 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1284 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
1285 dev_kfree_skb(skb);
1286 }
1287 skb = card->tx_skb[i];
1288 if (skb) {
1289 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1290 skb->len, PCI_DMA_TODEVICE);
1291 dev_kfree_skb(skb);
1292 }
1293 while ((skb = skb_dequeue(&card->tx_queue[i])))
1294 dev_kfree_skb(skb);
1295
1296 }
1297 }
1298 }
1299
1300 static void fpga_remove(struct pci_dev *dev)
1301 {
1302 struct solos_card *card = pci_get_drvdata(dev);
1303
1304 /* Disable IRQs */
1305 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1306
1307 /* Reset FPGA */
1308 iowrite32(1, card->config_regs + FPGA_MODE);
1309 (void)ioread32(card->config_regs + FPGA_MODE);
1310
1311 atm_remove(card);
1312
1313 free_irq(dev->irq, card);
1314 tasklet_kill(&card->tlet);
1315
1316 /* Release device from reset */
1317 iowrite32(0, card->config_regs + FPGA_MODE);
1318 (void)ioread32(card->config_regs + FPGA_MODE);
1319
1320 pci_iounmap(dev, card->buffers);
1321 pci_iounmap(dev, card->config_regs);
1322
1323 pci_release_regions(dev);
1324 pci_disable_device(dev);
1325
1326 pci_set_drvdata(dev, NULL);
1327 kfree(card);
1328 }
1329
1330 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1331 { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1332 { 0, }
1333 };
1334
1335 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1336
1337 static struct pci_driver fpga_driver = {
1338 .name = "solos",
1339 .id_table = fpga_pci_tbl,
1340 .probe = fpga_probe,
1341 .remove = fpga_remove,
1342 };
1343
1344
1345 static int __init solos_pci_init(void)
1346 {
1347 printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1348 return pci_register_driver(&fpga_driver);
1349 }
1350
1351 static void __exit solos_pci_exit(void)
1352 {
1353 pci_unregister_driver(&fpga_driver);
1354 printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1355 }
1356
1357 module_init(solos_pci_init);
1358 module_exit(solos_pci_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree