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ext4: fix undefined behavior in ext4_fill_flex_info()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / atm / solos-pci.c
blob84c93ff2a0af925e48a276f37a608bd647ab49b3
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_PARM_DESC(reset, "Reset Solos chips on startup");
146 MODULE_PARM_DESC(atmdebug, "Print ATM data");
147 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
148 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
149 MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade");
150 MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade");
151 module_param(reset, int, 0444);
152 module_param(atmdebug, int, 0644);
153 module_param(firmware_upgrade, int, 0444);
154 module_param(fpga_upgrade, int, 0444);
155 module_param(db_firmware_upgrade, int, 0444);
156 module_param(db_fpga_upgrade, int, 0444);
157
158 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
159 struct atm_vcc *vcc);
160 static uint32_t fpga_tx(struct solos_card *);
161 static irqreturn_t solos_irq(int irq, void *dev_id);
162 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
163 static int list_vccs(int vci);
164 static void release_vccs(struct atm_dev *dev);
165 static int atm_init(struct solos_card *);
166 static void atm_remove(struct solos_card *);
167 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
168 static void solos_bh(unsigned long);
169 static int print_buffer(struct sk_buff *buf);
170
171 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
172 {
173 if (vcc->pop)
174 vcc->pop(vcc, skb);
175 else
176 dev_kfree_skb_any(skb);
177 }
178
179 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
180 char *buf)
181 {
182 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
183 struct solos_card *card = atmdev->dev_data;
184 struct solos_param prm;
185 struct sk_buff *skb;
186 struct pkt_hdr *header;
187 int buflen;
188
189 buflen = strlen(attr->attr.name) + 10;
190
191 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
192 if (!skb) {
193 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
194 return -ENOMEM;
195 }
196
197 header = (void *)skb_put(skb, sizeof(*header));
198
199 buflen = snprintf((void *)&header[1], buflen - 1,
200 "L%05d\n%s\n", current->pid, attr->attr.name);
201 skb_put(skb, buflen);
202
203 header->size = cpu_to_le16(buflen);
204 header->vpi = cpu_to_le16(0);
205 header->vci = cpu_to_le16(0);
206 header->type = cpu_to_le16(PKT_COMMAND);
207
208 prm.pid = current->pid;
209 prm.response = NULL;
210 prm.port = SOLOS_CHAN(atmdev);
211
212 spin_lock_irq(&card->param_queue_lock);
213 list_add(&prm.list, &card->param_queue);
214 spin_unlock_irq(&card->param_queue_lock);
215
216 fpga_queue(card, prm.port, skb, NULL);
217
218 wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
219
220 spin_lock_irq(&card->param_queue_lock);
221 list_del(&prm.list);
222 spin_unlock_irq(&card->param_queue_lock);
223
224 if (!prm.response)
225 return -EIO;
226
227 buflen = prm.response->len;
228 memcpy(buf, prm.response->data, buflen);
229 kfree_skb(prm.response);
230
231 return buflen;
232 }
233
234 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
235 const char *buf, size_t count)
236 {
237 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
238 struct solos_card *card = atmdev->dev_data;
239 struct solos_param prm;
240 struct sk_buff *skb;
241 struct pkt_hdr *header;
242 int buflen;
243 ssize_t ret;
244
245 buflen = strlen(attr->attr.name) + 11 + count;
246
247 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
248 if (!skb) {
249 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
250 return -ENOMEM;
251 }
252
253 header = (void *)skb_put(skb, sizeof(*header));
254
255 buflen = snprintf((void *)&header[1], buflen - 1,
256 "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
257
258 skb_put(skb, buflen);
259 header->size = cpu_to_le16(buflen);
260 header->vpi = cpu_to_le16(0);
261 header->vci = cpu_to_le16(0);
262 header->type = cpu_to_le16(PKT_COMMAND);
263
264 prm.pid = current->pid;
265 prm.response = NULL;
266 prm.port = SOLOS_CHAN(atmdev);
267
268 spin_lock_irq(&card->param_queue_lock);
269 list_add(&prm.list, &card->param_queue);
270 spin_unlock_irq(&card->param_queue_lock);
271
272 fpga_queue(card, prm.port, skb, NULL);
273
274 wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
275
276 spin_lock_irq(&card->param_queue_lock);
277 list_del(&prm.list);
278 spin_unlock_irq(&card->param_queue_lock);
279
280 skb = prm.response;
281
282 if (!skb)
283 return -EIO;
284
285 buflen = skb->len;
286
287 /* Sometimes it has a newline, sometimes it doesn't. */
288 if (skb->data[buflen - 1] == '\n')
289 buflen--;
290
291 if (buflen == 2 && !strncmp(skb->data, "OK", 2))
292 ret = count;
293 else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
294 ret = -EIO;
295 else {
296 /* We know we have enough space allocated for this; we allocated
297 it ourselves */
298 skb->data[buflen] = 0;
299
300 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
301 skb->data);
302 ret = -EIO;
303 }
304 kfree_skb(skb);
305
306 return ret;
307 }
308
309 static char *next_string(struct sk_buff *skb)
310 {
311 int i = 0;
312 char *this = skb->data;
313
314 for (i = 0; i < skb->len; i++) {
315 if (this[i] == '\n') {
316 this[i] = 0;
317 skb_pull(skb, i + 1);
318 return this;
319 }
320 if (!isprint(this[i]))
321 return NULL;
322 }
323 return NULL;
324 }
325
326 /*
327 * Status packet has fields separated by \n, starting with a version number
328 * for the information therein. Fields are....
329 *
330 * packet version
331 * RxBitRate (version >= 1)
332 * TxBitRate (version >= 1)
333 * State (version >= 1)
334 * LocalSNRMargin (version >= 1)
335 * LocalLineAttn (version >= 1)
336 */
337 static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
338 {
339 char *str, *end, *state_str, *snr, *attn;
340 int ver, rate_up, rate_down;
341
342 if (!card->atmdev[port])
343 return -ENODEV;
344
345 str = next_string(skb);
346 if (!str)
347 return -EIO;
348
349 ver = simple_strtol(str, NULL, 10);
350 if (ver < 1) {
351 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
352 ver);
353 return -EIO;
354 }
355
356 str = next_string(skb);
357 if (!str)
358 return -EIO;
359 if (!strcmp(str, "ERROR")) {
360 dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n",
361 port);
362 return 0;
363 }
364
365 rate_down = simple_strtol(str, &end, 10);
366 if (*end)
367 return -EIO;
368
369 str = next_string(skb);
370 if (!str)
371 return -EIO;
372 rate_up = simple_strtol(str, &end, 10);
373 if (*end)
374 return -EIO;
375
376 state_str = next_string(skb);
377 if (!state_str)
378 return -EIO;
379
380 /* Anything but 'Showtime' is down */
381 if (strcmp(state_str, "Showtime")) {
382 card->atmdev[port]->signal = ATM_PHY_SIG_LOST;
383 release_vccs(card->atmdev[port]);
384 dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str);
385 return 0;
386 }
387
388 snr = next_string(skb);
389 if (!snr)
390 return -EIO;
391 attn = next_string(skb);
392 if (!attn)
393 return -EIO;
394
395 dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n",
396 port, state_str, rate_down/1000, rate_up/1000,
397 snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn);
398
399 card->atmdev[port]->link_rate = rate_down / 424;
400 card->atmdev[port]->signal = ATM_PHY_SIG_FOUND;
401
402 return 0;
403 }
404
405 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
406 {
407 struct solos_param *prm;
408 unsigned long flags;
409 int cmdpid;
410 int found = 0;
411
412 if (skb->len < 7)
413 return 0;
414
415 if (skb->data[0] != 'L' || !isdigit(skb->data[1]) ||
416 !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
417 !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
418 skb->data[6] != '\n')
419 return 0;
420
421 cmdpid = simple_strtol(&skb->data[1], NULL, 10);
422
423 spin_lock_irqsave(&card->param_queue_lock, flags);
424 list_for_each_entry(prm, &card->param_queue, list) {
425 if (prm->port == port && prm->pid == cmdpid) {
426 prm->response = skb;
427 skb_pull(skb, 7);
428 wake_up(&card->param_wq);
429 found = 1;
430 break;
431 }
432 }
433 spin_unlock_irqrestore(&card->param_queue_lock, flags);
434 return found;
435 }
436
437 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
438 char *buf)
439 {
440 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
441 struct solos_card *card = atmdev->dev_data;
442 struct sk_buff *skb;
443
444 spin_lock(&card->cli_queue_lock);
445 skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
446 spin_unlock(&card->cli_queue_lock);
447 if(skb == NULL)
448 return sprintf(buf, "No data.\n");
449
450 memcpy(buf, skb->data, skb->len);
451 dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
452
453 kfree_skb(skb);
454 return skb->len;
455 }
456
457 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
458 {
459 struct sk_buff *skb;
460 struct pkt_hdr *header;
461
462 if (size > (BUF_SIZE - sizeof(*header))) {
463 dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n");
464 return 0;
465 }
466 skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
467 if (!skb) {
468 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
469 return 0;
470 }
471
472 header = (void *)skb_put(skb, sizeof(*header));
473
474 header->size = cpu_to_le16(size);
475 header->vpi = cpu_to_le16(0);
476 header->vci = cpu_to_le16(0);
477 header->type = cpu_to_le16(PKT_COMMAND);
478
479 memcpy(skb_put(skb, size), buf, size);
480
481 fpga_queue(card, dev, skb, NULL);
482
483 return 0;
484 }
485
486 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
487 const char *buf, size_t count)
488 {
489 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
490 struct solos_card *card = atmdev->dev_data;
491 int err;
492
493 err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
494
495 return err?:count;
496 }
497
498 static DEVICE_ATTR(console, 0644, console_show, console_store);
499
500
501 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
502 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
503
504 #include "solos-attrlist.c"
505
506 #undef SOLOS_ATTR_RO
507 #undef SOLOS_ATTR_RW
508
509 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
510 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
511
512 static struct attribute *solos_attrs[] = {
513 #include "solos-attrlist.c"
514 NULL
515 };
516
517 static struct attribute_group solos_attr_group = {
518 .attrs = solos_attrs,
519 .name = "parameters",
520 };
521
522 static int flash_upgrade(struct solos_card *card, int chip)
523 {
524 const struct firmware *fw;
525 const char *fw_name;
526 uint32_t data32 = 0;
527 int blocksize = 0;
528 int numblocks = 0;
529 int offset;
530
531 if (chip == 0) {
532 fw_name = "solos-FPGA.bin";
533 blocksize = FPGA_BLOCK;
534 }
535
536 if (chip == 1) {
537 fw_name = "solos-Firmware.bin";
538 blocksize = SOLOS_BLOCK;
539 }
540
541 if (chip == 2){
542 if (card->fpga_version > LEGACY_BUFFERS){
543 fw_name = "solos-db-FPGA.bin";
544 blocksize = FPGA_BLOCK;
545 } else {
546 dev_info(&card->dev->dev, "FPGA version doesn't support daughter board upgrades\n");
547 return -EPERM;
548 }
549 }
550
551 if (chip == 3){
552 if (card->fpga_version > LEGACY_BUFFERS){
553 fw_name = "solos-Firmware.bin";
554 blocksize = SOLOS_BLOCK;
555 } else {
556 dev_info(&card->dev->dev, "FPGA version doesn't support daughter board upgrades\n");
557 return -EPERM;
558 }
559 }
560
561 if (request_firmware(&fw, fw_name, &card->dev->dev))
562 return -ENOENT;
563
564 dev_info(&card->dev->dev, "Flash upgrade starting\n");
565
566 numblocks = fw->size / blocksize;
567 dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
568 dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
569
570 dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
571 iowrite32(1, card->config_regs + FPGA_MODE);
572 data32 = ioread32(card->config_regs + FPGA_MODE);
573
574 /* Set mode to Chip Erase */
575 if(chip == 0 || chip == 2)
576 dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n");
577 if(chip == 1 || chip == 3)
578 dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n");
579 iowrite32((chip * 2), card->config_regs + FLASH_MODE);
580
581
582 iowrite32(1, card->config_regs + WRITE_FLASH);
583 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
584
585 for (offset = 0; offset < fw->size; offset += blocksize) {
586 int i;
587
588 /* Clear write flag */
589 iowrite32(0, card->config_regs + WRITE_FLASH);
590
591 /* Set mode to Block Write */
592 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
593 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
594
595 /* Copy block to buffer, swapping each 16 bits */
596 for(i = 0; i < blocksize; i += 4) {
597 uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
598 if(card->fpga_version > LEGACY_BUFFERS)
599 iowrite32(word, FLASH_BUF + i);
600 else
601 iowrite32(word, RX_BUF(card, 3) + i);
602 }
603
604 /* Specify block number and then trigger flash write */
605 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
606 iowrite32(1, card->config_regs + WRITE_FLASH);
607 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
608 }
609
610 release_firmware(fw);
611 iowrite32(0, card->config_regs + WRITE_FLASH);
612 iowrite32(0, card->config_regs + FPGA_MODE);
613 iowrite32(0, card->config_regs + FLASH_MODE);
614 dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
615 return 0;
616 }
617
618 static irqreturn_t solos_irq(int irq, void *dev_id)
619 {
620 struct solos_card *card = dev_id;
621 int handled = 1;
622
623 iowrite32(0, card->config_regs + IRQ_CLEAR);
624
625 /* If we're up and running, just kick the tasklet to process TX/RX */
626 if (card->atmdev[0])
627 tasklet_schedule(&card->tlet);
628 else
629 wake_up(&card->fw_wq);
630
631 return IRQ_RETVAL(handled);
632 }
633
634 void solos_bh(unsigned long card_arg)
635 {
636 struct solos_card *card = (void *)card_arg;
637 uint32_t card_flags;
638 uint32_t rx_done = 0;
639 int port;
640
641 /*
642 * Since fpga_tx() is going to need to read the flags under its lock,
643 * it can return them to us so that we don't have to hit PCI MMIO
644 * again for the same information
645 */
646 card_flags = fpga_tx(card);
647
648 for (port = 0; port < card->nr_ports; port++) {
649 if (card_flags & (0x10 << port)) {
650 struct pkt_hdr _hdr, *header;
651 struct sk_buff *skb;
652 struct atm_vcc *vcc;
653 int size;
654
655 if (card->using_dma) {
656 skb = card->rx_skb[port];
657 card->rx_skb[port] = NULL;
658
659 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
660 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
661
662 header = (void *)skb->data;
663 size = le16_to_cpu(header->size);
664 skb_put(skb, size + sizeof(*header));
665 skb_pull(skb, sizeof(*header));
666 } else {
667 header = &_hdr;
668
669 rx_done |= 0x10 << port;
670
671 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
672
673 size = le16_to_cpu(header->size);
674 if (size > (card->buffer_size - sizeof(*header))){
675 dev_warn(&card->dev->dev, "Invalid buffer size\n");
676 continue;
677 }
678
679 skb = alloc_skb(size + 1, GFP_ATOMIC);
680 if (!skb) {
681 if (net_ratelimit())
682 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
683 continue;
684 }
685
686 memcpy_fromio(skb_put(skb, size),
687 RX_BUF(card, port) + sizeof(*header),
688 size);
689 }
690 if (atmdebug) {
691 dev_info(&card->dev->dev, "Received: port %d\n", port);
692 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
693 size, le16_to_cpu(header->vpi),
694 le16_to_cpu(header->vci));
695 print_buffer(skb);
696 }
697
698 switch (le16_to_cpu(header->type)) {
699 case PKT_DATA:
700 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
701 le16_to_cpu(header->vci));
702 if (!vcc) {
703 if (net_ratelimit())
704 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
705 le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
706 port);
707 continue;
708 }
709 atm_charge(vcc, skb->truesize);
710 vcc->push(vcc, skb);
711 atomic_inc(&vcc->stats->rx);
712 break;
713
714 case PKT_STATUS:
715 if (process_status(card, port, skb) &&
716 net_ratelimit()) {
717 dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port);
718 print_buffer(skb);
719 }
720 dev_kfree_skb_any(skb);
721 break;
722
723 case PKT_COMMAND:
724 default: /* FIXME: Not really, surely? */
725 if (process_command(card, port, skb))
726 break;
727 spin_lock(&card->cli_queue_lock);
728 if (skb_queue_len(&card->cli_queue[port]) > 10) {
729 if (net_ratelimit())
730 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
731 port);
732 dev_kfree_skb_any(skb);
733 } else
734 skb_queue_tail(&card->cli_queue[port], skb);
735 spin_unlock(&card->cli_queue_lock);
736 break;
737 }
738 }
739 /* Allocate RX skbs for any ports which need them */
740 if (card->using_dma && card->atmdev[port] &&
741 !card->rx_skb[port]) {
742 struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
743 if (skb) {
744 SKB_CB(skb)->dma_addr =
745 pci_map_single(card->dev, skb->data,
746 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
747 iowrite32(SKB_CB(skb)->dma_addr,
748 card->config_regs + RX_DMA_ADDR(port));
749 card->rx_skb[port] = skb;
750 } else {
751 if (net_ratelimit())
752 dev_warn(&card->dev->dev, "Failed to allocate RX skb");
753
754 /* We'll have to try again later */
755 tasklet_schedule(&card->tlet);
756 }
757 }
758 }
759 if (rx_done)
760 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
761
762 return;
763 }
764
765 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
766 {
767 struct hlist_head *head;
768 struct atm_vcc *vcc = NULL;
769 struct hlist_node *node;
770 struct sock *s;
771
772 read_lock(&vcc_sklist_lock);
773 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
774 sk_for_each(s, node, head) {
775 vcc = atm_sk(s);
776 if (vcc->dev == dev && vcc->vci == vci &&
777 vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE &&
778 test_bit(ATM_VF_READY, &vcc->flags))
779 goto out;
780 }
781 vcc = NULL;
782 out:
783 read_unlock(&vcc_sklist_lock);
784 return vcc;
785 }
786
787 static int list_vccs(int vci)
788 {
789 struct hlist_head *head;
790 struct atm_vcc *vcc;
791 struct hlist_node *node;
792 struct sock *s;
793 int num_found = 0;
794 int i;
795
796 read_lock(&vcc_sklist_lock);
797 if (vci != 0){
798 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
799 sk_for_each(s, node, head) {
800 num_found ++;
801 vcc = atm_sk(s);
802 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
803 vcc->dev->number,
804 vcc->vpi,
805 vcc->vci);
806 }
807 } else {
808 for(i = 0; i < VCC_HTABLE_SIZE; i++){
809 head = &vcc_hash[i];
810 sk_for_each(s, node, head) {
811 num_found ++;
812 vcc = atm_sk(s);
813 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
814 vcc->dev->number,
815 vcc->vpi,
816 vcc->vci);
817 }
818 }
819 }
820 read_unlock(&vcc_sklist_lock);
821 return num_found;
822 }
823
824 static void release_vccs(struct atm_dev *dev)
825 {
826 int i;
827
828 write_lock_irq(&vcc_sklist_lock);
829 for (i = 0; i < VCC_HTABLE_SIZE; i++) {
830 struct hlist_head *head = &vcc_hash[i];
831 struct hlist_node *node, *tmp;
832 struct sock *s;
833 struct atm_vcc *vcc;
834
835 sk_for_each_safe(s, node, tmp, head) {
836 vcc = atm_sk(s);
837 if (vcc->dev == dev) {
838 vcc_release_async(vcc, -EPIPE);
839 sk_del_node_init(s);
840 }
841 }
842 }
843 write_unlock_irq(&vcc_sklist_lock);
844 }
845
846
847 static int popen(struct atm_vcc *vcc)
848 {
849 struct solos_card *card = vcc->dev->dev_data;
850 struct sk_buff *skb;
851 struct pkt_hdr *header;
852
853 if (vcc->qos.aal != ATM_AAL5) {
854 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
855 vcc->qos.aal);
856 return -EINVAL;
857 }
858
859 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
860 if (!skb && net_ratelimit()) {
861 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
862 return -ENOMEM;
863 }
864 header = (void *)skb_put(skb, sizeof(*header));
865
866 header->size = cpu_to_le16(0);
867 header->vpi = cpu_to_le16(vcc->vpi);
868 header->vci = cpu_to_le16(vcc->vci);
869 header->type = cpu_to_le16(PKT_POPEN);
870
871 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
872
873 set_bit(ATM_VF_ADDR, &vcc->flags);
874 set_bit(ATM_VF_READY, &vcc->flags);
875 list_vccs(0);
876
877
878 return 0;
879 }
880
881 static void pclose(struct atm_vcc *vcc)
882 {
883 struct solos_card *card = vcc->dev->dev_data;
884 struct sk_buff *skb;
885 struct pkt_hdr *header;
886
887 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
888 if (!skb) {
889 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
890 return;
891 }
892 header = (void *)skb_put(skb, sizeof(*header));
893
894 header->size = cpu_to_le16(0);
895 header->vpi = cpu_to_le16(vcc->vpi);
896 header->vci = cpu_to_le16(vcc->vci);
897 header->type = cpu_to_le16(PKT_PCLOSE);
898
899 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
900
901 clear_bit(ATM_VF_ADDR, &vcc->flags);
902 clear_bit(ATM_VF_READY, &vcc->flags);
903
904 /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the
905 tasklet has finished processing any incoming packets (and, more to
906 the point, using the vcc pointer). */
907 tasklet_unlock_wait(&card->tlet);
908 return;
909 }
910
911 static int print_buffer(struct sk_buff *buf)
912 {
913 int len,i;
914 char msg[500];
915 char item[10];
916
917 len = buf->len;
918 for (i = 0; i < len; i++){
919 if(i % 8 == 0)
920 sprintf(msg, "%02X: ", i);
921
922 sprintf(item,"%02X ",*(buf->data + i));
923 strcat(msg, item);
924 if(i % 8 == 7) {
925 sprintf(item, "\n");
926 strcat(msg, item);
927 printk(KERN_DEBUG "%s", msg);
928 }
929 }
930 if (i % 8 != 0) {
931 sprintf(item, "\n");
932 strcat(msg, item);
933 printk(KERN_DEBUG "%s", msg);
934 }
935 printk(KERN_DEBUG "\n");
936
937 return 0;
938 }
939
940 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
941 struct atm_vcc *vcc)
942 {
943 int old_len;
944 unsigned long flags;
945
946 SKB_CB(skb)->vcc = vcc;
947
948 spin_lock_irqsave(&card->tx_queue_lock, flags);
949 old_len = skb_queue_len(&card->tx_queue[port]);
950 skb_queue_tail(&card->tx_queue[port], skb);
951 if (!old_len)
952 card->tx_mask |= (1 << port);
953 spin_unlock_irqrestore(&card->tx_queue_lock, flags);
954
955 /* Theoretically we could just schedule the tasklet here, but
956 that introduces latency we don't want -- it's noticeable */
957 if (!old_len)
958 fpga_tx(card);
959 }
960
961 static uint32_t fpga_tx(struct solos_card *card)
962 {
963 uint32_t tx_pending, card_flags;
964 uint32_t tx_started = 0;
965 struct sk_buff *skb;
966 struct atm_vcc *vcc;
967 unsigned char port;
968 unsigned long flags;
969
970 spin_lock_irqsave(&card->tx_lock, flags);
971
972 card_flags = ioread32(card->config_regs + FLAGS_ADDR);
973 /*
974 * The queue lock is required for _writing_ to tx_mask, but we're
975 * OK to read it here without locking. The only potential update
976 * that we could race with is in fpga_queue() where it sets a bit
977 * for a new port... but it's going to call this function again if
978 * it's doing that, anyway.
979 */
980 tx_pending = card->tx_mask & ~card_flags;
981
982 for (port = 0; tx_pending; tx_pending >>= 1, port++) {
983 if (tx_pending & 1) {
984 struct sk_buff *oldskb = card->tx_skb[port];
985 if (oldskb)
986 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
987 oldskb->len, PCI_DMA_TODEVICE);
988
989 spin_lock(&card->tx_queue_lock);
990 skb = skb_dequeue(&card->tx_queue[port]);
991 if (!skb)
992 card->tx_mask &= ~(1 << port);
993 spin_unlock(&card->tx_queue_lock);
994
995 if (skb && !card->using_dma) {
996 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
997 tx_started |= 1 << port;
998 oldskb = skb; /* We're done with this skb already */
999 } else if (skb && card->using_dma) {
1000 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
1001 skb->len, PCI_DMA_TODEVICE);
1002 iowrite32(SKB_CB(skb)->dma_addr,
1003 card->config_regs + TX_DMA_ADDR(port));
1004 }
1005
1006 if (!oldskb)
1007 continue;
1008
1009 /* Clean up and free oldskb now it's gone */
1010 if (atmdebug) {
1011 struct pkt_hdr *header = (void *)oldskb->data;
1012 int size = le16_to_cpu(header->size);
1013
1014 skb_pull(oldskb, sizeof(*header));
1015 dev_info(&card->dev->dev, "Transmitted: port %d\n",
1016 port);
1017 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
1018 size, le16_to_cpu(header->vpi),
1019 le16_to_cpu(header->vci));
1020 print_buffer(oldskb);
1021 }
1022
1023 vcc = SKB_CB(oldskb)->vcc;
1024
1025 if (vcc) {
1026 atomic_inc(&vcc->stats->tx);
1027 solos_pop(vcc, oldskb);
1028 } else
1029 dev_kfree_skb_irq(oldskb);
1030
1031 }
1032 }
1033 /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */
1034 if (tx_started)
1035 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
1036
1037 spin_unlock_irqrestore(&card->tx_lock, flags);
1038 return card_flags;
1039 }
1040
1041 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
1042 {
1043 struct solos_card *card = vcc->dev->dev_data;
1044 struct pkt_hdr *header;
1045 int pktlen;
1046
1047 pktlen = skb->len;
1048 if (pktlen > (BUF_SIZE - sizeof(*header))) {
1049 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
1050 solos_pop(vcc, skb);
1051 return 0;
1052 }
1053
1054 if (!skb_clone_writable(skb, sizeof(*header))) {
1055 int expand_by = 0;
1056 int ret;
1057
1058 if (skb_headroom(skb) < sizeof(*header))
1059 expand_by = sizeof(*header) - skb_headroom(skb);
1060
1061 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
1062 if (ret) {
1063 dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
1064 solos_pop(vcc, skb);
1065 return ret;
1066 }
1067 }
1068
1069 header = (void *)skb_push(skb, sizeof(*header));
1070
1071 /* This does _not_ include the size of the header */
1072 header->size = cpu_to_le16(pktlen);
1073 header->vpi = cpu_to_le16(vcc->vpi);
1074 header->vci = cpu_to_le16(vcc->vci);
1075 header->type = cpu_to_le16(PKT_DATA);
1076
1077 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1078
1079 return 0;
1080 }
1081
1082 static struct atmdev_ops fpga_ops = {
1083 .open = popen,
1084 .close = pclose,
1085 .ioctl = NULL,
1086 .getsockopt = NULL,
1087 .setsockopt = NULL,
1088 .send = psend,
1089 .send_oam = NULL,
1090 .phy_put = NULL,
1091 .phy_get = NULL,
1092 .change_qos = NULL,
1093 .proc_read = NULL,
1094 .owner = THIS_MODULE
1095 };
1096
1097 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1098 {
1099 int err;
1100 uint16_t fpga_ver;
1101 uint8_t major_ver, minor_ver;
1102 uint32_t data32;
1103 struct solos_card *card;
1104
1105 card = kzalloc(sizeof(*card), GFP_KERNEL);
1106 if (!card)
1107 return -ENOMEM;
1108
1109 card->dev = dev;
1110 init_waitqueue_head(&card->fw_wq);
1111 init_waitqueue_head(&card->param_wq);
1112
1113 err = pci_enable_device(dev);
1114 if (err) {
1115 dev_warn(&dev->dev, "Failed to enable PCI device\n");
1116 goto out;
1117 }
1118
1119 err = pci_set_dma_mask(dev, DMA_BIT_MASK(32));
1120 if (err) {
1121 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1122 goto out;
1123 }
1124
1125 err = pci_request_regions(dev, "solos");
1126 if (err) {
1127 dev_warn(&dev->dev, "Failed to request regions\n");
1128 goto out;
1129 }
1130
1131 card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1132 if (!card->config_regs) {
1133 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1134 goto out_release_regions;
1135 }
1136 card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1137 if (!card->buffers) {
1138 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1139 goto out_unmap_config;
1140 }
1141
1142 if (reset) {
1143 iowrite32(1, card->config_regs + FPGA_MODE);
1144 data32 = ioread32(card->config_regs + FPGA_MODE);
1145
1146 iowrite32(0, card->config_regs + FPGA_MODE);
1147 data32 = ioread32(card->config_regs + FPGA_MODE);
1148 }
1149
1150 data32 = ioread32(card->config_regs + FPGA_VER);
1151 fpga_ver = (data32 & 0x0000FFFF);
1152 major_ver = ((data32 & 0xFF000000) >> 24);
1153 minor_ver = ((data32 & 0x00FF0000) >> 16);
1154 card->fpga_version = FPGA_VERSION(major_ver,minor_ver);
1155 if (card->fpga_version > LEGACY_BUFFERS)
1156 card->buffer_size = BUF_SIZE;
1157 else
1158 card->buffer_size = OLD_BUF_SIZE;
1159 dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1160 major_ver, minor_ver, fpga_ver);
1161
1162 if (card->fpga_version >= DMA_SUPPORTED){
1163 card->using_dma = 1;
1164 } else {
1165 card->using_dma = 0;
1166 /* Set RX empty flag for all ports */
1167 iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1168 }
1169
1170 data32 = ioread32(card->config_regs + PORTS);
1171 card->nr_ports = (data32 & 0x000000FF);
1172
1173 pci_set_drvdata(dev, card);
1174
1175 tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1176 spin_lock_init(&card->tx_lock);
1177 spin_lock_init(&card->tx_queue_lock);
1178 spin_lock_init(&card->cli_queue_lock);
1179 spin_lock_init(&card->param_queue_lock);
1180 INIT_LIST_HEAD(&card->param_queue);
1181
1182 err = request_irq(dev->irq, solos_irq, IRQF_SHARED,
1183 "solos-pci", card);
1184 if (err) {
1185 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1186 goto out_unmap_both;
1187 }
1188
1189 iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1190
1191 if (fpga_upgrade)
1192 flash_upgrade(card, 0);
1193
1194 if (firmware_upgrade)
1195 flash_upgrade(card, 1);
1196
1197 if (db_fpga_upgrade)
1198 flash_upgrade(card, 2);
1199
1200 if (db_firmware_upgrade)
1201 flash_upgrade(card, 3);
1202
1203 err = atm_init(card);
1204 if (err)
1205 goto out_free_irq;
1206
1207 return 0;
1208
1209 out_free_irq:
1210 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1211 free_irq(dev->irq, card);
1212 tasklet_kill(&card->tlet);
1213
1214 out_unmap_both:
1215 pci_set_drvdata(dev, NULL);
1216 pci_iounmap(dev, card->config_regs);
1217 out_unmap_config:
1218 pci_iounmap(dev, card->buffers);
1219 out_release_regions:
1220 pci_release_regions(dev);
1221 out:
1222 kfree(card);
1223 return err;
1224 }
1225
1226 static int atm_init(struct solos_card *card)
1227 {
1228 int i;
1229
1230 for (i = 0; i < card->nr_ports; i++) {
1231 struct sk_buff *skb;
1232 struct pkt_hdr *header;
1233
1234 skb_queue_head_init(&card->tx_queue[i]);
1235 skb_queue_head_init(&card->cli_queue[i]);
1236
1237 card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
1238 if (!card->atmdev[i]) {
1239 dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1240 atm_remove(card);
1241 return -ENODEV;
1242 }
1243 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1244 dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1245 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1246 dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1247
1248 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1249
1250 card->atmdev[i]->ci_range.vpi_bits = 8;
1251 card->atmdev[i]->ci_range.vci_bits = 16;
1252 card->atmdev[i]->dev_data = card;
1253 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1254 card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN;
1255
1256 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1257 if (!skb) {
1258 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1259 continue;
1260 }
1261
1262 header = (void *)skb_put(skb, sizeof(*header));
1263
1264 header->size = cpu_to_le16(0);
1265 header->vpi = cpu_to_le16(0);
1266 header->vci = cpu_to_le16(0);
1267 header->type = cpu_to_le16(PKT_STATUS);
1268
1269 fpga_queue(card, i, skb, NULL);
1270 }
1271 return 0;
1272 }
1273
1274 static void atm_remove(struct solos_card *card)
1275 {
1276 int i;
1277
1278 for (i = 0; i < card->nr_ports; i++) {
1279 if (card->atmdev[i]) {
1280 struct sk_buff *skb;
1281
1282 dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1283
1284 sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1285 atm_dev_deregister(card->atmdev[i]);
1286
1287 skb = card->rx_skb[i];
1288 if (skb) {
1289 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1290 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
1291 dev_kfree_skb(skb);
1292 }
1293 skb = card->tx_skb[i];
1294 if (skb) {
1295 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1296 skb->len, PCI_DMA_TODEVICE);
1297 dev_kfree_skb(skb);
1298 }
1299 while ((skb = skb_dequeue(&card->tx_queue[i])))
1300 dev_kfree_skb(skb);
1301
1302 }
1303 }
1304 }
1305
1306 static void fpga_remove(struct pci_dev *dev)
1307 {
1308 struct solos_card *card = pci_get_drvdata(dev);
1309
1310 /* Disable IRQs */
1311 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1312
1313 /* Reset FPGA */
1314 iowrite32(1, card->config_regs + FPGA_MODE);
1315 (void)ioread32(card->config_regs + FPGA_MODE);
1316
1317 atm_remove(card);
1318
1319 free_irq(dev->irq, card);
1320 tasklet_kill(&card->tlet);
1321
1322 /* Release device from reset */
1323 iowrite32(0, card->config_regs + FPGA_MODE);
1324 (void)ioread32(card->config_regs + FPGA_MODE);
1325
1326 pci_iounmap(dev, card->buffers);
1327 pci_iounmap(dev, card->config_regs);
1328
1329 pci_release_regions(dev);
1330 pci_disable_device(dev);
1331
1332 pci_set_drvdata(dev, NULL);
1333 kfree(card);
1334 }
1335
1336 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1337 { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1338 { 0, }
1339 };
1340
1341 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1342
1343 static struct pci_driver fpga_driver = {
1344 .name = "solos",
1345 .id_table = fpga_pci_tbl,
1346 .probe = fpga_probe,
1347 .remove = fpga_remove,
1348 };
1349
1350
1351 static int __init solos_pci_init(void)
1352 {
1353 printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1354 return pci_register_driver(&fpga_driver);
1355 }
1356
1357 static void __exit solos_pci_exit(void)
1358 {
1359 pci_unregister_driver(&fpga_driver);
1360 printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1361 }
1362
1363 module_init(solos_pci_init);
1364 module_exit(solos_pci_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree