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mmc: sdhci: Check mrq->cmd in sdhci_tasklet_finish
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / atm / solos-pci.c
blobd0f8b3dec5866c3c794e976fb753161ad5c0992e
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
44 #define VERSION "0.07"
45 #define PTAG "solos-pci"
46
47 #define CONFIG_RAM_SIZE 128
48 #define FLAGS_ADDR 0x7C
49 #define IRQ_EN_ADDR 0x78
50 #define FPGA_VER 0x74
51 #define IRQ_CLEAR 0x70
52 #define WRITE_FLASH 0x6C
53 #define PORTS 0x68
54 #define FLASH_BLOCK 0x64
55 #define FLASH_BUSY 0x60
56 #define FPGA_MODE 0x5C
57 #define FLASH_MODE 0x58
58 #define TX_DMA_ADDR(port) (0x40 + (4 * (port)))
59 #define RX_DMA_ADDR(port) (0x30 + (4 * (port)))
60
61 #define DATA_RAM_SIZE 32768
62 #define BUF_SIZE 2048
63 #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/
64 #define FPGA_PAGE 528 /* FPGA flash page size*/
65 #define SOLOS_PAGE 512 /* Solos flash page size*/
66 #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/
67 #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/
68
69 #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2)
70 #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size))
71 #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2)
72
73 #define RX_DMA_SIZE 2048
74
75 #define FPGA_VERSION(a,b) (((a) << 8) + (b))
76 #define LEGACY_BUFFERS 2
77 #define DMA_SUPPORTED 4
78
79 static int reset = 0;
80 static int atmdebug = 0;
81 static int firmware_upgrade = 0;
82 static int fpga_upgrade = 0;
83 static int db_firmware_upgrade = 0;
84 static int db_fpga_upgrade = 0;
85
86 struct pkt_hdr {
87 __le16 size;
88 __le16 vpi;
89 __le16 vci;
90 __le16 type;
91 };
92
93 struct solos_skb_cb {
94 struct atm_vcc *vcc;
95 uint32_t dma_addr;
96 };
97
98
99 #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb)
100
101 #define PKT_DATA 0
102 #define PKT_COMMAND 1
103 #define PKT_POPEN 3
104 #define PKT_PCLOSE 4
105 #define PKT_STATUS 5
106
107 struct solos_card {
108 void __iomem *config_regs;
109 void __iomem *buffers;
110 int nr_ports;
111 int tx_mask;
112 struct pci_dev *dev;
113 struct atm_dev *atmdev[4];
114 struct tasklet_struct tlet;
115 spinlock_t tx_lock;
116 spinlock_t tx_queue_lock;
117 spinlock_t cli_queue_lock;
118 spinlock_t param_queue_lock;
119 struct list_head param_queue;
120 struct sk_buff_head tx_queue[4];
121 struct sk_buff_head cli_queue[4];
122 struct sk_buff *tx_skb[4];
123 struct sk_buff *rx_skb[4];
124 wait_queue_head_t param_wq;
125 wait_queue_head_t fw_wq;
126 int using_dma;
127 int fpga_version;
128 int buffer_size;
129 };
130
131
132 struct solos_param {
133 struct list_head list;
134 pid_t pid;
135 int port;
136 struct sk_buff *response;
137 };
138
139 #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
140
141 MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
142 MODULE_DESCRIPTION("Solos PCI driver");
143 MODULE_VERSION(VERSION);
144 MODULE_LICENSE("GPL");
145 MODULE_FIRMWARE("solos-FPGA.bin");
146 MODULE_FIRMWARE("solos-Firmware.bin");
147 MODULE_FIRMWARE("solos-db-FPGA.bin");
148 MODULE_PARM_DESC(reset, "Reset Solos chips on startup");
149 MODULE_PARM_DESC(atmdebug, "Print ATM data");
150 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
151 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
152 MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade");
153 MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade");
154 module_param(reset, int, 0444);
155 module_param(atmdebug, int, 0644);
156 module_param(firmware_upgrade, int, 0444);
157 module_param(fpga_upgrade, int, 0444);
158 module_param(db_firmware_upgrade, int, 0444);
159 module_param(db_fpga_upgrade, int, 0444);
160
161 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
162 struct atm_vcc *vcc);
163 static uint32_t fpga_tx(struct solos_card *);
164 static irqreturn_t solos_irq(int irq, void *dev_id);
165 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
166 static int list_vccs(int vci);
167 static void release_vccs(struct atm_dev *dev);
168 static int atm_init(struct solos_card *);
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 card->atmdev[port]->signal = ATM_PHY_SIG_LOST;
386 release_vccs(card->atmdev[port]);
387 dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str);
388 return 0;
389 }
390
391 snr = next_string(skb);
392 if (!snr)
393 return -EIO;
394 attn = next_string(skb);
395 if (!attn)
396 return -EIO;
397
398 dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n",
399 port, state_str, rate_down/1000, rate_up/1000,
400 snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn);
401
402 card->atmdev[port]->link_rate = rate_down / 424;
403 card->atmdev[port]->signal = ATM_PHY_SIG_FOUND;
404
405 return 0;
406 }
407
408 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
409 {
410 struct solos_param *prm;
411 unsigned long flags;
412 int cmdpid;
413 int found = 0;
414
415 if (skb->len < 7)
416 return 0;
417
418 if (skb->data[0] != 'L' || !isdigit(skb->data[1]) ||
419 !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
420 !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
421 skb->data[6] != '\n')
422 return 0;
423
424 cmdpid = simple_strtol(&skb->data[1], NULL, 10);
425
426 spin_lock_irqsave(&card->param_queue_lock, flags);
427 list_for_each_entry(prm, &card->param_queue, list) {
428 if (prm->port == port && prm->pid == cmdpid) {
429 prm->response = skb;
430 skb_pull(skb, 7);
431 wake_up(&card->param_wq);
432 found = 1;
433 break;
434 }
435 }
436 spin_unlock_irqrestore(&card->param_queue_lock, flags);
437 return found;
438 }
439
440 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
441 char *buf)
442 {
443 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
444 struct solos_card *card = atmdev->dev_data;
445 struct sk_buff *skb;
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 memcpy(buf, skb->data, skb->len);
454 dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
455
456 kfree_skb(skb);
457 return skb->len;
458 }
459
460 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
461 {
462 struct sk_buff *skb;
463 struct pkt_hdr *header;
464
465 if (size > (BUF_SIZE - sizeof(*header))) {
466 dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n");
467 return 0;
468 }
469 skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
470 if (!skb) {
471 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
472 return 0;
473 }
474
475 header = (void *)skb_put(skb, sizeof(*header));
476
477 header->size = cpu_to_le16(size);
478 header->vpi = cpu_to_le16(0);
479 header->vci = cpu_to_le16(0);
480 header->type = cpu_to_le16(PKT_COMMAND);
481
482 memcpy(skb_put(skb, size), buf, size);
483
484 fpga_queue(card, dev, skb, NULL);
485
486 return 0;
487 }
488
489 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
490 const char *buf, size_t count)
491 {
492 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
493 struct solos_card *card = atmdev->dev_data;
494 int err;
495
496 err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
497
498 return err?:count;
499 }
500
501 static DEVICE_ATTR(console, 0644, console_show, console_store);
502
503
504 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
505 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
506
507 #include "solos-attrlist.c"
508
509 #undef SOLOS_ATTR_RO
510 #undef SOLOS_ATTR_RW
511
512 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
513 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
514
515 static struct attribute *solos_attrs[] = {
516 #include "solos-attrlist.c"
517 NULL
518 };
519
520 static struct attribute_group solos_attr_group = {
521 .attrs = solos_attrs,
522 .name = "parameters",
523 };
524
525 static int flash_upgrade(struct solos_card *card, int chip)
526 {
527 const struct firmware *fw;
528 const char *fw_name;
529 uint32_t data32 = 0;
530 int blocksize = 0;
531 int numblocks = 0;
532 int offset;
533
534 switch (chip) {
535 case 0:
536 fw_name = "solos-FPGA.bin";
537 blocksize = FPGA_BLOCK;
538 break;
539 case 1:
540 fw_name = "solos-Firmware.bin";
541 blocksize = SOLOS_BLOCK;
542 break;
543 case 2:
544 if (card->fpga_version > LEGACY_BUFFERS){
545 fw_name = "solos-db-FPGA.bin";
546 blocksize = FPGA_BLOCK;
547 } else {
548 dev_info(&card->dev->dev, "FPGA version doesn't support"
549 " daughter board upgrades\n");
550 return -EPERM;
551 }
552 break;
553 case 3:
554 if (card->fpga_version > LEGACY_BUFFERS){
555 fw_name = "solos-Firmware.bin";
556 blocksize = SOLOS_BLOCK;
557 } else {
558 dev_info(&card->dev->dev, "FPGA version doesn't support"
559 " daughter board upgrades\n");
560 return -EPERM;
561 }
562 break;
563 default:
564 return -ENODEV;
565 }
566
567 if (request_firmware(&fw, fw_name, &card->dev->dev))
568 return -ENOENT;
569
570 dev_info(&card->dev->dev, "Flash upgrade starting\n");
571
572 numblocks = fw->size / blocksize;
573 dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
574 dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
575
576 dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
577 iowrite32(1, card->config_regs + FPGA_MODE);
578 data32 = ioread32(card->config_regs + FPGA_MODE);
579
580 /* Set mode to Chip Erase */
581 if(chip == 0 || chip == 2)
582 dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n");
583 if(chip == 1 || chip == 3)
584 dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n");
585 iowrite32((chip * 2), card->config_regs + FLASH_MODE);
586
587
588 iowrite32(1, card->config_regs + WRITE_FLASH);
589 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
590
591 for (offset = 0; offset < fw->size; offset += blocksize) {
592 int i;
593
594 /* Clear write flag */
595 iowrite32(0, card->config_regs + WRITE_FLASH);
596
597 /* Set mode to Block Write */
598 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
599 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
600
601 /* Copy block to buffer, swapping each 16 bits */
602 for(i = 0; i < blocksize; i += 4) {
603 uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
604 if(card->fpga_version > LEGACY_BUFFERS)
605 iowrite32(word, FLASH_BUF + i);
606 else
607 iowrite32(word, RX_BUF(card, 3) + i);
608 }
609
610 /* Specify block number and then trigger flash write */
611 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
612 iowrite32(1, card->config_regs + WRITE_FLASH);
613 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
614 }
615
616 release_firmware(fw);
617 iowrite32(0, card->config_regs + WRITE_FLASH);
618 iowrite32(0, card->config_regs + FPGA_MODE);
619 iowrite32(0, card->config_regs + FLASH_MODE);
620 dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
621 return 0;
622 }
623
624 static irqreturn_t solos_irq(int irq, void *dev_id)
625 {
626 struct solos_card *card = dev_id;
627 int handled = 1;
628
629 iowrite32(0, card->config_regs + IRQ_CLEAR);
630
631 /* If we're up and running, just kick the tasklet to process TX/RX */
632 if (card->atmdev[0])
633 tasklet_schedule(&card->tlet);
634 else
635 wake_up(&card->fw_wq);
636
637 return IRQ_RETVAL(handled);
638 }
639
640 void solos_bh(unsigned long card_arg)
641 {
642 struct solos_card *card = (void *)card_arg;
643 uint32_t card_flags;
644 uint32_t rx_done = 0;
645 int port;
646
647 /*
648 * Since fpga_tx() is going to need to read the flags under its lock,
649 * it can return them to us so that we don't have to hit PCI MMIO
650 * again for the same information
651 */
652 card_flags = fpga_tx(card);
653
654 for (port = 0; port < card->nr_ports; port++) {
655 if (card_flags & (0x10 << port)) {
656 struct pkt_hdr _hdr, *header;
657 struct sk_buff *skb;
658 struct atm_vcc *vcc;
659 int size;
660
661 if (card->using_dma) {
662 skb = card->rx_skb[port];
663 card->rx_skb[port] = NULL;
664
665 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
666 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
667
668 header = (void *)skb->data;
669 size = le16_to_cpu(header->size);
670 skb_put(skb, size + sizeof(*header));
671 skb_pull(skb, sizeof(*header));
672 } else {
673 header = &_hdr;
674
675 rx_done |= 0x10 << port;
676
677 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
678
679 size = le16_to_cpu(header->size);
680 if (size > (card->buffer_size - sizeof(*header))){
681 dev_warn(&card->dev->dev, "Invalid buffer size\n");
682 continue;
683 }
684
685 skb = alloc_skb(size + 1, GFP_ATOMIC);
686 if (!skb) {
687 if (net_ratelimit())
688 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
689 continue;
690 }
691
692 memcpy_fromio(skb_put(skb, size),
693 RX_BUF(card, port) + sizeof(*header),
694 size);
695 }
696 if (atmdebug) {
697 dev_info(&card->dev->dev, "Received: port %d\n", port);
698 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
699 size, le16_to_cpu(header->vpi),
700 le16_to_cpu(header->vci));
701 print_buffer(skb);
702 }
703
704 switch (le16_to_cpu(header->type)) {
705 case PKT_DATA:
706 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
707 le16_to_cpu(header->vci));
708 if (!vcc) {
709 if (net_ratelimit())
710 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
711 le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
712 port);
713 continue;
714 }
715 atm_charge(vcc, skb->truesize);
716 vcc->push(vcc, skb);
717 atomic_inc(&vcc->stats->rx);
718 break;
719
720 case PKT_STATUS:
721 if (process_status(card, port, skb) &&
722 net_ratelimit()) {
723 dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port);
724 print_buffer(skb);
725 }
726 dev_kfree_skb_any(skb);
727 break;
728
729 case PKT_COMMAND:
730 default: /* FIXME: Not really, surely? */
731 if (process_command(card, port, skb))
732 break;
733 spin_lock(&card->cli_queue_lock);
734 if (skb_queue_len(&card->cli_queue[port]) > 10) {
735 if (net_ratelimit())
736 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
737 port);
738 dev_kfree_skb_any(skb);
739 } else
740 skb_queue_tail(&card->cli_queue[port], skb);
741 spin_unlock(&card->cli_queue_lock);
742 break;
743 }
744 }
745 /* Allocate RX skbs for any ports which need them */
746 if (card->using_dma && card->atmdev[port] &&
747 !card->rx_skb[port]) {
748 struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
749 if (skb) {
750 SKB_CB(skb)->dma_addr =
751 pci_map_single(card->dev, skb->data,
752 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
753 iowrite32(SKB_CB(skb)->dma_addr,
754 card->config_regs + RX_DMA_ADDR(port));
755 card->rx_skb[port] = skb;
756 } else {
757 if (net_ratelimit())
758 dev_warn(&card->dev->dev, "Failed to allocate RX skb");
759
760 /* We'll have to try again later */
761 tasklet_schedule(&card->tlet);
762 }
763 }
764 }
765 if (rx_done)
766 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
767
768 return;
769 }
770
771 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
772 {
773 struct hlist_head *head;
774 struct atm_vcc *vcc = NULL;
775 struct hlist_node *node;
776 struct sock *s;
777
778 read_lock(&vcc_sklist_lock);
779 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
780 sk_for_each(s, node, head) {
781 vcc = atm_sk(s);
782 if (vcc->dev == dev && vcc->vci == vci &&
783 vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
784 goto out;
785 }
786 vcc = NULL;
787 out:
788 read_unlock(&vcc_sklist_lock);
789 return vcc;
790 }
791
792 static int list_vccs(int vci)
793 {
794 struct hlist_head *head;
795 struct atm_vcc *vcc;
796 struct hlist_node *node;
797 struct sock *s;
798 int num_found = 0;
799 int i;
800
801 read_lock(&vcc_sklist_lock);
802 if (vci != 0){
803 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
804 sk_for_each(s, node, head) {
805 num_found ++;
806 vcc = atm_sk(s);
807 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
808 vcc->dev->number,
809 vcc->vpi,
810 vcc->vci);
811 }
812 } else {
813 for(i = 0; i < VCC_HTABLE_SIZE; i++){
814 head = &vcc_hash[i];
815 sk_for_each(s, node, head) {
816 num_found ++;
817 vcc = atm_sk(s);
818 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
819 vcc->dev->number,
820 vcc->vpi,
821 vcc->vci);
822 }
823 }
824 }
825 read_unlock(&vcc_sklist_lock);
826 return num_found;
827 }
828
829 static void release_vccs(struct atm_dev *dev)
830 {
831 int i;
832
833 write_lock_irq(&vcc_sklist_lock);
834 for (i = 0; i < VCC_HTABLE_SIZE; i++) {
835 struct hlist_head *head = &vcc_hash[i];
836 struct hlist_node *node, *tmp;
837 struct sock *s;
838 struct atm_vcc *vcc;
839
840 sk_for_each_safe(s, node, tmp, head) {
841 vcc = atm_sk(s);
842 if (vcc->dev == dev) {
843 vcc_release_async(vcc, -EPIPE);
844 sk_del_node_init(s);
845 }
846 }
847 }
848 write_unlock_irq(&vcc_sklist_lock);
849 }
850
851
852 static int popen(struct atm_vcc *vcc)
853 {
854 struct solos_card *card = vcc->dev->dev_data;
855 struct sk_buff *skb;
856 struct pkt_hdr *header;
857
858 if (vcc->qos.aal != ATM_AAL5) {
859 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
860 vcc->qos.aal);
861 return -EINVAL;
862 }
863
864 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
865 if (!skb && net_ratelimit()) {
866 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
867 return -ENOMEM;
868 }
869 header = (void *)skb_put(skb, sizeof(*header));
870
871 header->size = cpu_to_le16(0);
872 header->vpi = cpu_to_le16(vcc->vpi);
873 header->vci = cpu_to_le16(vcc->vci);
874 header->type = cpu_to_le16(PKT_POPEN);
875
876 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
877
878 set_bit(ATM_VF_ADDR, &vcc->flags);
879 set_bit(ATM_VF_READY, &vcc->flags);
880 list_vccs(0);
881
882
883 return 0;
884 }
885
886 static void pclose(struct atm_vcc *vcc)
887 {
888 struct solos_card *card = vcc->dev->dev_data;
889 struct sk_buff *skb;
890 struct pkt_hdr *header;
891
892 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
893 if (!skb) {
894 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
895 return;
896 }
897 header = (void *)skb_put(skb, sizeof(*header));
898
899 header->size = cpu_to_le16(0);
900 header->vpi = cpu_to_le16(vcc->vpi);
901 header->vci = cpu_to_le16(vcc->vci);
902 header->type = cpu_to_le16(PKT_PCLOSE);
903
904 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
905
906 clear_bit(ATM_VF_ADDR, &vcc->flags);
907 clear_bit(ATM_VF_READY, &vcc->flags);
908
909 return;
910 }
911
912 static int print_buffer(struct sk_buff *buf)
913 {
914 int len,i;
915 char msg[500];
916 char item[10];
917
918 len = buf->len;
919 for (i = 0; i < len; i++){
920 if(i % 8 == 0)
921 sprintf(msg, "%02X: ", i);
922
923 sprintf(item,"%02X ",*(buf->data + i));
924 strcat(msg, item);
925 if(i % 8 == 7) {
926 sprintf(item, "\n");
927 strcat(msg, item);
928 printk(KERN_DEBUG "%s", msg);
929 }
930 }
931 if (i % 8 != 0) {
932 sprintf(item, "\n");
933 strcat(msg, item);
934 printk(KERN_DEBUG "%s", msg);
935 }
936 printk(KERN_DEBUG "\n");
937
938 return 0;
939 }
940
941 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
942 struct atm_vcc *vcc)
943 {
944 int old_len;
945 unsigned long flags;
946
947 SKB_CB(skb)->vcc = vcc;
948
949 spin_lock_irqsave(&card->tx_queue_lock, flags);
950 old_len = skb_queue_len(&card->tx_queue[port]);
951 skb_queue_tail(&card->tx_queue[port], skb);
952 if (!old_len)
953 card->tx_mask |= (1 << port);
954 spin_unlock_irqrestore(&card->tx_queue_lock, flags);
955
956 /* Theoretically we could just schedule the tasklet here, but
957 that introduces latency we don't want -- it's noticeable */
958 if (!old_len)
959 fpga_tx(card);
960 }
961
962 static uint32_t fpga_tx(struct solos_card *card)
963 {
964 uint32_t tx_pending, card_flags;
965 uint32_t tx_started = 0;
966 struct sk_buff *skb;
967 struct atm_vcc *vcc;
968 unsigned char port;
969 unsigned long flags;
970
971 spin_lock_irqsave(&card->tx_lock, flags);
972
973 card_flags = ioread32(card->config_regs + FLAGS_ADDR);
974 /*
975 * The queue lock is required for _writing_ to tx_mask, but we're
976 * OK to read it here without locking. The only potential update
977 * that we could race with is in fpga_queue() where it sets a bit
978 * for a new port... but it's going to call this function again if
979 * it's doing that, anyway.
980 */
981 tx_pending = card->tx_mask & ~card_flags;
982
983 for (port = 0; tx_pending; tx_pending >>= 1, port++) {
984 if (tx_pending & 1) {
985 struct sk_buff *oldskb = card->tx_skb[port];
986 if (oldskb)
987 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
988 oldskb->len, PCI_DMA_TODEVICE);
989
990 spin_lock(&card->tx_queue_lock);
991 skb = skb_dequeue(&card->tx_queue[port]);
992 if (!skb)
993 card->tx_mask &= ~(1 << port);
994 spin_unlock(&card->tx_queue_lock);
995
996 if (skb && !card->using_dma) {
997 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
998 tx_started |= 1 << port;
999 oldskb = skb; /* We're done with this skb already */
1000 } else if (skb && card->using_dma) {
1001 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
1002 skb->len, PCI_DMA_TODEVICE);
1003 iowrite32(SKB_CB(skb)->dma_addr,
1004 card->config_regs + TX_DMA_ADDR(port));
1005 }
1006
1007 if (!oldskb)
1008 continue;
1009
1010 /* Clean up and free oldskb now it's gone */
1011 if (atmdebug) {
1012 struct pkt_hdr *header = (void *)oldskb->data;
1013 int size = le16_to_cpu(header->size);
1014
1015 skb_pull(oldskb, sizeof(*header));
1016 dev_info(&card->dev->dev, "Transmitted: port %d\n",
1017 port);
1018 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
1019 size, le16_to_cpu(header->vpi),
1020 le16_to_cpu(header->vci));
1021 print_buffer(oldskb);
1022 }
1023
1024 vcc = SKB_CB(oldskb)->vcc;
1025
1026 if (vcc) {
1027 atomic_inc(&vcc->stats->tx);
1028 solos_pop(vcc, oldskb);
1029 } else
1030 dev_kfree_skb_irq(oldskb);
1031
1032 }
1033 }
1034 /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */
1035 if (tx_started)
1036 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
1037
1038 spin_unlock_irqrestore(&card->tx_lock, flags);
1039 return card_flags;
1040 }
1041
1042 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
1043 {
1044 struct solos_card *card = vcc->dev->dev_data;
1045 struct pkt_hdr *header;
1046 int pktlen;
1047
1048 pktlen = skb->len;
1049 if (pktlen > (BUF_SIZE - sizeof(*header))) {
1050 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
1051 solos_pop(vcc, skb);
1052 return 0;
1053 }
1054
1055 if (!skb_clone_writable(skb, sizeof(*header))) {
1056 int expand_by = 0;
1057 int ret;
1058
1059 if (skb_headroom(skb) < sizeof(*header))
1060 expand_by = sizeof(*header) - skb_headroom(skb);
1061
1062 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
1063 if (ret) {
1064 dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
1065 solos_pop(vcc, skb);
1066 return ret;
1067 }
1068 }
1069
1070 header = (void *)skb_push(skb, sizeof(*header));
1071
1072 /* This does _not_ include the size of the header */
1073 header->size = cpu_to_le16(pktlen);
1074 header->vpi = cpu_to_le16(vcc->vpi);
1075 header->vci = cpu_to_le16(vcc->vci);
1076 header->type = cpu_to_le16(PKT_DATA);
1077
1078 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1079
1080 return 0;
1081 }
1082
1083 static struct atmdev_ops fpga_ops = {
1084 .open = popen,
1085 .close = pclose,
1086 .ioctl = NULL,
1087 .getsockopt = NULL,
1088 .setsockopt = NULL,
1089 .send = psend,
1090 .send_oam = NULL,
1091 .phy_put = NULL,
1092 .phy_get = NULL,
1093 .change_qos = NULL,
1094 .proc_read = NULL,
1095 .owner = THIS_MODULE
1096 };
1097
1098 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1099 {
1100 int err;
1101 uint16_t fpga_ver;
1102 uint8_t major_ver, minor_ver;
1103 uint32_t data32;
1104 struct solos_card *card;
1105
1106 card = kzalloc(sizeof(*card), GFP_KERNEL);
1107 if (!card)
1108 return -ENOMEM;
1109
1110 card->dev = dev;
1111 init_waitqueue_head(&card->fw_wq);
1112 init_waitqueue_head(&card->param_wq);
1113
1114 err = pci_enable_device(dev);
1115 if (err) {
1116 dev_warn(&dev->dev, "Failed to enable PCI device\n");
1117 goto out;
1118 }
1119
1120 err = pci_set_dma_mask(dev, DMA_BIT_MASK(32));
1121 if (err) {
1122 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1123 goto out;
1124 }
1125
1126 err = pci_request_regions(dev, "solos");
1127 if (err) {
1128 dev_warn(&dev->dev, "Failed to request regions\n");
1129 goto out;
1130 }
1131
1132 card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1133 if (!card->config_regs) {
1134 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1135 goto out_release_regions;
1136 }
1137 card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1138 if (!card->buffers) {
1139 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1140 goto out_unmap_config;
1141 }
1142
1143 if (reset) {
1144 iowrite32(1, card->config_regs + FPGA_MODE);
1145 data32 = ioread32(card->config_regs + FPGA_MODE);
1146
1147 iowrite32(0, card->config_regs + FPGA_MODE);
1148 data32 = ioread32(card->config_regs + FPGA_MODE);
1149 }
1150
1151 data32 = ioread32(card->config_regs + FPGA_VER);
1152 fpga_ver = (data32 & 0x0000FFFF);
1153 major_ver = ((data32 & 0xFF000000) >> 24);
1154 minor_ver = ((data32 & 0x00FF0000) >> 16);
1155 card->fpga_version = FPGA_VERSION(major_ver,minor_ver);
1156 if (card->fpga_version > LEGACY_BUFFERS)
1157 card->buffer_size = BUF_SIZE;
1158 else
1159 card->buffer_size = OLD_BUF_SIZE;
1160 dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1161 major_ver, minor_ver, fpga_ver);
1162
1163 if (card->fpga_version >= DMA_SUPPORTED){
1164 card->using_dma = 1;
1165 } else {
1166 card->using_dma = 0;
1167 /* Set RX empty flag for all ports */
1168 iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1169 }
1170
1171 data32 = ioread32(card->config_regs + PORTS);
1172 card->nr_ports = (data32 & 0x000000FF);
1173
1174 pci_set_drvdata(dev, card);
1175
1176 tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1177 spin_lock_init(&card->tx_lock);
1178 spin_lock_init(&card->tx_queue_lock);
1179 spin_lock_init(&card->cli_queue_lock);
1180 spin_lock_init(&card->param_queue_lock);
1181 INIT_LIST_HEAD(&card->param_queue);
1182
1183 err = request_irq(dev->irq, solos_irq, IRQF_SHARED,
1184 "solos-pci", card);
1185 if (err) {
1186 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1187 goto out_unmap_both;
1188 }
1189
1190 iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1191
1192 if (fpga_upgrade)
1193 flash_upgrade(card, 0);
1194
1195 if (firmware_upgrade)
1196 flash_upgrade(card, 1);
1197
1198 if (db_fpga_upgrade)
1199 flash_upgrade(card, 2);
1200
1201 if (db_firmware_upgrade)
1202 flash_upgrade(card, 3);
1203
1204 err = atm_init(card);
1205 if (err)
1206 goto out_free_irq;
1207
1208 return 0;
1209
1210 out_free_irq:
1211 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1212 free_irq(dev->irq, card);
1213 tasklet_kill(&card->tlet);
1214
1215 out_unmap_both:
1216 pci_set_drvdata(dev, NULL);
1217 pci_iounmap(dev, card->config_regs);
1218 out_unmap_config:
1219 pci_iounmap(dev, card->buffers);
1220 out_release_regions:
1221 pci_release_regions(dev);
1222 out:
1223 kfree(card);
1224 return err;
1225 }
1226
1227 static int atm_init(struct solos_card *card)
1228 {
1229 int i;
1230
1231 for (i = 0; i < card->nr_ports; i++) {
1232 struct sk_buff *skb;
1233 struct pkt_hdr *header;
1234
1235 skb_queue_head_init(&card->tx_queue[i]);
1236 skb_queue_head_init(&card->cli_queue[i]);
1237
1238 card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
1239 if (!card->atmdev[i]) {
1240 dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1241 atm_remove(card);
1242 return -ENODEV;
1243 }
1244 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1245 dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1246 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1247 dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1248
1249 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1250
1251 card->atmdev[i]->ci_range.vpi_bits = 8;
1252 card->atmdev[i]->ci_range.vci_bits = 16;
1253 card->atmdev[i]->dev_data = card;
1254 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1255 card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN;
1256
1257 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1258 if (!skb) {
1259 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1260 continue;
1261 }
1262
1263 header = (void *)skb_put(skb, sizeof(*header));
1264
1265 header->size = cpu_to_le16(0);
1266 header->vpi = cpu_to_le16(0);
1267 header->vci = cpu_to_le16(0);
1268 header->type = cpu_to_le16(PKT_STATUS);
1269
1270 fpga_queue(card, i, skb, NULL);
1271 }
1272 return 0;
1273 }
1274
1275 static void atm_remove(struct solos_card *card)
1276 {
1277 int i;
1278
1279 for (i = 0; i < card->nr_ports; i++) {
1280 if (card->atmdev[i]) {
1281 struct sk_buff *skb;
1282
1283 dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1284
1285 sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1286 atm_dev_deregister(card->atmdev[i]);
1287
1288 skb = card->rx_skb[i];
1289 if (skb) {
1290 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1291 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
1292 dev_kfree_skb(skb);
1293 }
1294 skb = card->tx_skb[i];
1295 if (skb) {
1296 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1297 skb->len, PCI_DMA_TODEVICE);
1298 dev_kfree_skb(skb);
1299 }
1300 while ((skb = skb_dequeue(&card->tx_queue[i])))
1301 dev_kfree_skb(skb);
1302
1303 }
1304 }
1305 }
1306
1307 static void fpga_remove(struct pci_dev *dev)
1308 {
1309 struct solos_card *card = pci_get_drvdata(dev);
1310
1311 /* Disable IRQs */
1312 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1313
1314 /* Reset FPGA */
1315 iowrite32(1, card->config_regs + FPGA_MODE);
1316 (void)ioread32(card->config_regs + FPGA_MODE);
1317
1318 atm_remove(card);
1319
1320 free_irq(dev->irq, card);
1321 tasklet_kill(&card->tlet);
1322
1323 /* Release device from reset */
1324 iowrite32(0, card->config_regs + FPGA_MODE);
1325 (void)ioread32(card->config_regs + FPGA_MODE);
1326
1327 pci_iounmap(dev, card->buffers);
1328 pci_iounmap(dev, card->config_regs);
1329
1330 pci_release_regions(dev);
1331 pci_disable_device(dev);
1332
1333 pci_set_drvdata(dev, NULL);
1334 kfree(card);
1335 }
1336
1337 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1338 { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1339 { 0, }
1340 };
1341
1342 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1343
1344 static struct pci_driver fpga_driver = {
1345 .name = "solos",
1346 .id_table = fpga_pci_tbl,
1347 .probe = fpga_probe,
1348 .remove = fpga_remove,
1349 };
1350
1351
1352 static int __init solos_pci_init(void)
1353 {
1354 printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1355 return pci_register_driver(&fpga_driver);
1356 }
1357
1358 static void __exit solos_pci_exit(void)
1359 {
1360 pci_unregister_driver(&fpga_driver);
1361 printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1362 }
1363
1364 module_init(solos_pci_init);
1365 module_exit(solos_pci_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree