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Merge branch 'for-next'
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / atm / solos-pci.c
blob73fb1c4f4cd4e99f0b57df7977c22216a781e1e6
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 void release_vccs(struct atm_dev *dev);
169 static int atm_init(struct solos_card *, struct device *);
170 static void atm_remove(struct solos_card *);
171 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
172 static void solos_bh(unsigned long);
173 static int print_buffer(struct sk_buff *buf);
174
175 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
176 {
177 if (vcc->pop)
178 vcc->pop(vcc, skb);
179 else
180 dev_kfree_skb_any(skb);
181 }
182
183 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
184 char *buf)
185 {
186 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
187 struct solos_card *card = atmdev->dev_data;
188 struct solos_param prm;
189 struct sk_buff *skb;
190 struct pkt_hdr *header;
191 int buflen;
192
193 buflen = strlen(attr->attr.name) + 10;
194
195 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
196 if (!skb) {
197 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
198 return -ENOMEM;
199 }
200
201 header = (void *)skb_put(skb, sizeof(*header));
202
203 buflen = snprintf((void *)&header[1], buflen - 1,
204 "L%05d\n%s\n", current->pid, attr->attr.name);
205 skb_put(skb, buflen);
206
207 header->size = cpu_to_le16(buflen);
208 header->vpi = cpu_to_le16(0);
209 header->vci = cpu_to_le16(0);
210 header->type = cpu_to_le16(PKT_COMMAND);
211
212 prm.pid = current->pid;
213 prm.response = NULL;
214 prm.port = SOLOS_CHAN(atmdev);
215
216 spin_lock_irq(&card->param_queue_lock);
217 list_add(&prm.list, &card->param_queue);
218 spin_unlock_irq(&card->param_queue_lock);
219
220 fpga_queue(card, prm.port, skb, NULL);
221
222 wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
223
224 spin_lock_irq(&card->param_queue_lock);
225 list_del(&prm.list);
226 spin_unlock_irq(&card->param_queue_lock);
227
228 if (!prm.response)
229 return -EIO;
230
231 buflen = prm.response->len;
232 memcpy(buf, prm.response->data, buflen);
233 kfree_skb(prm.response);
234
235 return buflen;
236 }
237
238 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
239 const char *buf, size_t count)
240 {
241 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
242 struct solos_card *card = atmdev->dev_data;
243 struct solos_param prm;
244 struct sk_buff *skb;
245 struct pkt_hdr *header;
246 int buflen;
247 ssize_t ret;
248
249 buflen = strlen(attr->attr.name) + 11 + count;
250
251 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
252 if (!skb) {
253 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
254 return -ENOMEM;
255 }
256
257 header = (void *)skb_put(skb, sizeof(*header));
258
259 buflen = snprintf((void *)&header[1], buflen - 1,
260 "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
261
262 skb_put(skb, buflen);
263 header->size = cpu_to_le16(buflen);
264 header->vpi = cpu_to_le16(0);
265 header->vci = cpu_to_le16(0);
266 header->type = cpu_to_le16(PKT_COMMAND);
267
268 prm.pid = current->pid;
269 prm.response = NULL;
270 prm.port = SOLOS_CHAN(atmdev);
271
272 spin_lock_irq(&card->param_queue_lock);
273 list_add(&prm.list, &card->param_queue);
274 spin_unlock_irq(&card->param_queue_lock);
275
276 fpga_queue(card, prm.port, skb, NULL);
277
278 wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
279
280 spin_lock_irq(&card->param_queue_lock);
281 list_del(&prm.list);
282 spin_unlock_irq(&card->param_queue_lock);
283
284 skb = prm.response;
285
286 if (!skb)
287 return -EIO;
288
289 buflen = skb->len;
290
291 /* Sometimes it has a newline, sometimes it doesn't. */
292 if (skb->data[buflen - 1] == '\n')
293 buflen--;
294
295 if (buflen == 2 && !strncmp(skb->data, "OK", 2))
296 ret = count;
297 else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
298 ret = -EIO;
299 else {
300 /* We know we have enough space allocated for this; we allocated
301 it ourselves */
302 skb->data[buflen] = 0;
303
304 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
305 skb->data);
306 ret = -EIO;
307 }
308 kfree_skb(skb);
309
310 return ret;
311 }
312
313 static char *next_string(struct sk_buff *skb)
314 {
315 int i = 0;
316 char *this = skb->data;
317
318 for (i = 0; i < skb->len; i++) {
319 if (this[i] == '\n') {
320 this[i] = 0;
321 skb_pull(skb, i + 1);
322 return this;
323 }
324 if (!isprint(this[i]))
325 return NULL;
326 }
327 return NULL;
328 }
329
330 /*
331 * Status packet has fields separated by \n, starting with a version number
332 * for the information therein. Fields are....
333 *
334 * packet version
335 * RxBitRate (version >= 1)
336 * TxBitRate (version >= 1)
337 * State (version >= 1)
338 * LocalSNRMargin (version >= 1)
339 * LocalLineAttn (version >= 1)
340 */
341 static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
342 {
343 char *str, *end, *state_str, *snr, *attn;
344 int ver, rate_up, rate_down;
345
346 if (!card->atmdev[port])
347 return -ENODEV;
348
349 str = next_string(skb);
350 if (!str)
351 return -EIO;
352
353 ver = simple_strtol(str, NULL, 10);
354 if (ver < 1) {
355 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
356 ver);
357 return -EIO;
358 }
359
360 str = next_string(skb);
361 if (!str)
362 return -EIO;
363 if (!strcmp(str, "ERROR")) {
364 dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n",
365 port);
366 return 0;
367 }
368
369 rate_down = simple_strtol(str, &end, 10);
370 if (*end)
371 return -EIO;
372
373 str = next_string(skb);
374 if (!str)
375 return -EIO;
376 rate_up = simple_strtol(str, &end, 10);
377 if (*end)
378 return -EIO;
379
380 state_str = next_string(skb);
381 if (!state_str)
382 return -EIO;
383
384 /* Anything but 'Showtime' is down */
385 if (strcmp(state_str, "Showtime")) {
386 atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST);
387 release_vccs(card->atmdev[port]);
388 dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str);
389 return 0;
390 }
391
392 snr = next_string(skb);
393 if (!snr)
394 return -EIO;
395 attn = next_string(skb);
396 if (!attn)
397 return -EIO;
398
399 dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n",
400 port, state_str, rate_down/1000, rate_up/1000,
401 snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn);
402
403 card->atmdev[port]->link_rate = rate_down / 424;
404 atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND);
405
406 return 0;
407 }
408
409 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
410 {
411 struct solos_param *prm;
412 unsigned long flags;
413 int cmdpid;
414 int found = 0;
415
416 if (skb->len < 7)
417 return 0;
418
419 if (skb->data[0] != 'L' || !isdigit(skb->data[1]) ||
420 !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
421 !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
422 skb->data[6] != '\n')
423 return 0;
424
425 cmdpid = simple_strtol(&skb->data[1], NULL, 10);
426
427 spin_lock_irqsave(&card->param_queue_lock, flags);
428 list_for_each_entry(prm, &card->param_queue, list) {
429 if (prm->port == port && prm->pid == cmdpid) {
430 prm->response = skb;
431 skb_pull(skb, 7);
432 wake_up(&card->param_wq);
433 found = 1;
434 break;
435 }
436 }
437 spin_unlock_irqrestore(&card->param_queue_lock, flags);
438 return found;
439 }
440
441 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
442 char *buf)
443 {
444 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
445 struct solos_card *card = atmdev->dev_data;
446 struct sk_buff *skb;
447 unsigned int len;
448
449 spin_lock(&card->cli_queue_lock);
450 skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
451 spin_unlock(&card->cli_queue_lock);
452 if(skb == NULL)
453 return sprintf(buf, "No data.\n");
454
455 len = skb->len;
456 memcpy(buf, skb->data, len);
457 dev_dbg(&card->dev->dev, "len: %d\n", len);
458
459 kfree_skb(skb);
460 return len;
461 }
462
463 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
464 {
465 struct sk_buff *skb;
466 struct pkt_hdr *header;
467
468 if (size > (BUF_SIZE - sizeof(*header))) {
469 dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n");
470 return 0;
471 }
472 skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
473 if (!skb) {
474 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
475 return 0;
476 }
477
478 header = (void *)skb_put(skb, sizeof(*header));
479
480 header->size = cpu_to_le16(size);
481 header->vpi = cpu_to_le16(0);
482 header->vci = cpu_to_le16(0);
483 header->type = cpu_to_le16(PKT_COMMAND);
484
485 memcpy(skb_put(skb, size), buf, size);
486
487 fpga_queue(card, dev, skb, NULL);
488
489 return 0;
490 }
491
492 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
493 const char *buf, size_t count)
494 {
495 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
496 struct solos_card *card = atmdev->dev_data;
497 int err;
498
499 err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
500
501 return err?:count;
502 }
503
504 static DEVICE_ATTR(console, 0644, console_show, console_store);
505
506
507 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
508 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
509
510 #include "solos-attrlist.c"
511
512 #undef SOLOS_ATTR_RO
513 #undef SOLOS_ATTR_RW
514
515 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
516 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
517
518 static struct attribute *solos_attrs[] = {
519 #include "solos-attrlist.c"
520 NULL
521 };
522
523 static struct attribute_group solos_attr_group = {
524 .attrs = solos_attrs,
525 .name = "parameters",
526 };
527
528 static int flash_upgrade(struct solos_card *card, int chip)
529 {
530 const struct firmware *fw;
531 const char *fw_name;
532 uint32_t data32 = 0;
533 int blocksize = 0;
534 int numblocks = 0;
535 int offset;
536
537 switch (chip) {
538 case 0:
539 fw_name = "solos-FPGA.bin";
540 blocksize = FPGA_BLOCK;
541 break;
542 case 1:
543 fw_name = "solos-Firmware.bin";
544 blocksize = SOLOS_BLOCK;
545 break;
546 case 2:
547 if (card->fpga_version > LEGACY_BUFFERS){
548 fw_name = "solos-db-FPGA.bin";
549 blocksize = FPGA_BLOCK;
550 } else {
551 dev_info(&card->dev->dev, "FPGA version doesn't support"
552 " daughter board upgrades\n");
553 return -EPERM;
554 }
555 break;
556 case 3:
557 if (card->fpga_version > LEGACY_BUFFERS){
558 fw_name = "solos-Firmware.bin";
559 blocksize = SOLOS_BLOCK;
560 } else {
561 dev_info(&card->dev->dev, "FPGA version doesn't support"
562 " daughter board upgrades\n");
563 return -EPERM;
564 }
565 break;
566 default:
567 return -ENODEV;
568 }
569
570 if (request_firmware(&fw, fw_name, &card->dev->dev))
571 return -ENOENT;
572
573 dev_info(&card->dev->dev, "Flash upgrade starting\n");
574
575 numblocks = fw->size / blocksize;
576 dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
577 dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
578
579 dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
580 iowrite32(1, card->config_regs + FPGA_MODE);
581 data32 = ioread32(card->config_regs + FPGA_MODE);
582
583 /* Set mode to Chip Erase */
584 if(chip == 0 || chip == 2)
585 dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n");
586 if(chip == 1 || chip == 3)
587 dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n");
588 iowrite32((chip * 2), card->config_regs + FLASH_MODE);
589
590
591 iowrite32(1, card->config_regs + WRITE_FLASH);
592 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
593
594 for (offset = 0; offset < fw->size; offset += blocksize) {
595 int i;
596
597 /* Clear write flag */
598 iowrite32(0, card->config_regs + WRITE_FLASH);
599
600 /* Set mode to Block Write */
601 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
602 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
603
604 /* Copy block to buffer, swapping each 16 bits */
605 for(i = 0; i < blocksize; i += 4) {
606 uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
607 if(card->fpga_version > LEGACY_BUFFERS)
608 iowrite32(word, FLASH_BUF + i);
609 else
610 iowrite32(word, RX_BUF(card, 3) + i);
611 }
612
613 /* Specify block number and then trigger flash write */
614 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
615 iowrite32(1, card->config_regs + WRITE_FLASH);
616 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
617 }
618
619 release_firmware(fw);
620 iowrite32(0, card->config_regs + WRITE_FLASH);
621 iowrite32(0, card->config_regs + FPGA_MODE);
622 iowrite32(0, card->config_regs + FLASH_MODE);
623 dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
624 return 0;
625 }
626
627 static irqreturn_t solos_irq(int irq, void *dev_id)
628 {
629 struct solos_card *card = dev_id;
630 int handled = 1;
631
632 iowrite32(0, card->config_regs + IRQ_CLEAR);
633
634 /* If we're up and running, just kick the tasklet to process TX/RX */
635 if (card->atmdev[0])
636 tasklet_schedule(&card->tlet);
637 else
638 wake_up(&card->fw_wq);
639
640 return IRQ_RETVAL(handled);
641 }
642
643 void solos_bh(unsigned long card_arg)
644 {
645 struct solos_card *card = (void *)card_arg;
646 uint32_t card_flags;
647 uint32_t rx_done = 0;
648 int port;
649
650 /*
651 * Since fpga_tx() is going to need to read the flags under its lock,
652 * it can return them to us so that we don't have to hit PCI MMIO
653 * again for the same information
654 */
655 card_flags = fpga_tx(card);
656
657 for (port = 0; port < card->nr_ports; port++) {
658 if (card_flags & (0x10 << port)) {
659 struct pkt_hdr _hdr, *header;
660 struct sk_buff *skb;
661 struct atm_vcc *vcc;
662 int size;
663
664 if (card->using_dma) {
665 skb = card->rx_skb[port];
666 card->rx_skb[port] = NULL;
667
668 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
669 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
670
671 header = (void *)skb->data;
672 size = le16_to_cpu(header->size);
673 skb_put(skb, size + sizeof(*header));
674 skb_pull(skb, sizeof(*header));
675 } else {
676 header = &_hdr;
677
678 rx_done |= 0x10 << port;
679
680 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
681
682 size = le16_to_cpu(header->size);
683 if (size > (card->buffer_size - sizeof(*header))){
684 dev_warn(&card->dev->dev, "Invalid buffer size\n");
685 continue;
686 }
687
688 skb = alloc_skb(size + 1, GFP_ATOMIC);
689 if (!skb) {
690 if (net_ratelimit())
691 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
692 continue;
693 }
694
695 memcpy_fromio(skb_put(skb, size),
696 RX_BUF(card, port) + sizeof(*header),
697 size);
698 }
699 if (atmdebug) {
700 dev_info(&card->dev->dev, "Received: device %d\n", port);
701 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
702 size, le16_to_cpu(header->vpi),
703 le16_to_cpu(header->vci));
704 print_buffer(skb);
705 }
706
707 switch (le16_to_cpu(header->type)) {
708 case PKT_DATA:
709 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
710 le16_to_cpu(header->vci));
711 if (!vcc) {
712 if (net_ratelimit())
713 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
714 le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
715 port);
716 continue;
717 }
718 atm_charge(vcc, skb->truesize);
719 vcc->push(vcc, skb);
720 atomic_inc(&vcc->stats->rx);
721 break;
722
723 case PKT_STATUS:
724 if (process_status(card, port, skb) &&
725 net_ratelimit()) {
726 dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port);
727 print_buffer(skb);
728 }
729 dev_kfree_skb_any(skb);
730 break;
731
732 case PKT_COMMAND:
733 default: /* FIXME: Not really, surely? */
734 if (process_command(card, port, skb))
735 break;
736 spin_lock(&card->cli_queue_lock);
737 if (skb_queue_len(&card->cli_queue[port]) > 10) {
738 if (net_ratelimit())
739 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
740 port);
741 dev_kfree_skb_any(skb);
742 } else
743 skb_queue_tail(&card->cli_queue[port], skb);
744 spin_unlock(&card->cli_queue_lock);
745 break;
746 }
747 }
748 /* Allocate RX skbs for any ports which need them */
749 if (card->using_dma && card->atmdev[port] &&
750 !card->rx_skb[port]) {
751 struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
752 if (skb) {
753 SKB_CB(skb)->dma_addr =
754 pci_map_single(card->dev, skb->data,
755 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
756 iowrite32(SKB_CB(skb)->dma_addr,
757 card->config_regs + RX_DMA_ADDR(port));
758 card->rx_skb[port] = skb;
759 } else {
760 if (net_ratelimit())
761 dev_warn(&card->dev->dev, "Failed to allocate RX skb");
762
763 /* We'll have to try again later */
764 tasklet_schedule(&card->tlet);
765 }
766 }
767 }
768 if (rx_done)
769 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
770
771 return;
772 }
773
774 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
775 {
776 struct hlist_head *head;
777 struct atm_vcc *vcc = NULL;
778 struct hlist_node *node;
779 struct sock *s;
780
781 read_lock(&vcc_sklist_lock);
782 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
783 sk_for_each(s, node, head) {
784 vcc = atm_sk(s);
785 if (vcc->dev == dev && vcc->vci == vci &&
786 vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE &&
787 test_bit(ATM_VF_READY, &vcc->flags))
788 goto out;
789 }
790 vcc = NULL;
791 out:
792 read_unlock(&vcc_sklist_lock);
793 return vcc;
794 }
795
796 static int list_vccs(int vci)
797 {
798 struct hlist_head *head;
799 struct atm_vcc *vcc;
800 struct hlist_node *node;
801 struct sock *s;
802 int num_found = 0;
803 int i;
804
805 read_lock(&vcc_sklist_lock);
806 if (vci != 0){
807 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
808 sk_for_each(s, node, head) {
809 num_found ++;
810 vcc = atm_sk(s);
811 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
812 vcc->dev->number,
813 vcc->vpi,
814 vcc->vci);
815 }
816 } else {
817 for(i = 0; i < VCC_HTABLE_SIZE; i++){
818 head = &vcc_hash[i];
819 sk_for_each(s, node, head) {
820 num_found ++;
821 vcc = atm_sk(s);
822 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
823 vcc->dev->number,
824 vcc->vpi,
825 vcc->vci);
826 }
827 }
828 }
829 read_unlock(&vcc_sklist_lock);
830 return num_found;
831 }
832
833 static void release_vccs(struct atm_dev *dev)
834 {
835 int i;
836
837 write_lock_irq(&vcc_sklist_lock);
838 for (i = 0; i < VCC_HTABLE_SIZE; i++) {
839 struct hlist_head *head = &vcc_hash[i];
840 struct hlist_node *node, *tmp;
841 struct sock *s;
842 struct atm_vcc *vcc;
843
844 sk_for_each_safe(s, node, tmp, head) {
845 vcc = atm_sk(s);
846 if (vcc->dev == dev) {
847 vcc_release_async(vcc, -EPIPE);
848 sk_del_node_init(s);
849 }
850 }
851 }
852 write_unlock_irq(&vcc_sklist_lock);
853 }
854
855
856 static int popen(struct atm_vcc *vcc)
857 {
858 struct solos_card *card = vcc->dev->dev_data;
859 struct sk_buff *skb;
860 struct pkt_hdr *header;
861
862 if (vcc->qos.aal != ATM_AAL5) {
863 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
864 vcc->qos.aal);
865 return -EINVAL;
866 }
867
868 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
869 if (!skb && net_ratelimit()) {
870 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
871 return -ENOMEM;
872 }
873 header = (void *)skb_put(skb, sizeof(*header));
874
875 header->size = cpu_to_le16(0);
876 header->vpi = cpu_to_le16(vcc->vpi);
877 header->vci = cpu_to_le16(vcc->vci);
878 header->type = cpu_to_le16(PKT_POPEN);
879
880 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
881
882 set_bit(ATM_VF_ADDR, &vcc->flags);
883 set_bit(ATM_VF_READY, &vcc->flags);
884 list_vccs(0);
885
886
887 return 0;
888 }
889
890 static void pclose(struct atm_vcc *vcc)
891 {
892 struct solos_card *card = vcc->dev->dev_data;
893 struct sk_buff *skb;
894 struct pkt_hdr *header;
895
896 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
897 if (!skb) {
898 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
899 return;
900 }
901 header = (void *)skb_put(skb, sizeof(*header));
902
903 header->size = cpu_to_le16(0);
904 header->vpi = cpu_to_le16(vcc->vpi);
905 header->vci = cpu_to_le16(vcc->vci);
906 header->type = cpu_to_le16(PKT_PCLOSE);
907
908 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
909
910 clear_bit(ATM_VF_ADDR, &vcc->flags);
911 clear_bit(ATM_VF_READY, &vcc->flags);
912
913 /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the
914 tasklet has finished processing any incoming packets (and, more to
915 the point, using the vcc pointer). */
916 tasklet_unlock_wait(&card->tlet);
917 return;
918 }
919
920 static int print_buffer(struct sk_buff *buf)
921 {
922 int len,i;
923 char msg[500];
924 char item[10];
925
926 len = buf->len;
927 for (i = 0; i < len; i++){
928 if(i % 8 == 0)
929 sprintf(msg, "%02X: ", i);
930
931 sprintf(item,"%02X ",*(buf->data + i));
932 strcat(msg, item);
933 if(i % 8 == 7) {
934 sprintf(item, "\n");
935 strcat(msg, item);
936 printk(KERN_DEBUG "%s", msg);
937 }
938 }
939 if (i % 8 != 0) {
940 sprintf(item, "\n");
941 strcat(msg, item);
942 printk(KERN_DEBUG "%s", msg);
943 }
944 printk(KERN_DEBUG "\n");
945
946 return 0;
947 }
948
949 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
950 struct atm_vcc *vcc)
951 {
952 int old_len;
953 unsigned long flags;
954
955 SKB_CB(skb)->vcc = vcc;
956
957 spin_lock_irqsave(&card->tx_queue_lock, flags);
958 old_len = skb_queue_len(&card->tx_queue[port]);
959 skb_queue_tail(&card->tx_queue[port], skb);
960 if (!old_len)
961 card->tx_mask |= (1 << port);
962 spin_unlock_irqrestore(&card->tx_queue_lock, flags);
963
964 /* Theoretically we could just schedule the tasklet here, but
965 that introduces latency we don't want -- it's noticeable */
966 if (!old_len)
967 fpga_tx(card);
968 }
969
970 static uint32_t fpga_tx(struct solos_card *card)
971 {
972 uint32_t tx_pending, card_flags;
973 uint32_t tx_started = 0;
974 struct sk_buff *skb;
975 struct atm_vcc *vcc;
976 unsigned char port;
977 unsigned long flags;
978
979 spin_lock_irqsave(&card->tx_lock, flags);
980
981 card_flags = ioread32(card->config_regs + FLAGS_ADDR);
982 /*
983 * The queue lock is required for _writing_ to tx_mask, but we're
984 * OK to read it here without locking. The only potential update
985 * that we could race with is in fpga_queue() where it sets a bit
986 * for a new port... but it's going to call this function again if
987 * it's doing that, anyway.
988 */
989 tx_pending = card->tx_mask & ~card_flags;
990
991 for (port = 0; tx_pending; tx_pending >>= 1, port++) {
992 if (tx_pending & 1) {
993 struct sk_buff *oldskb = card->tx_skb[port];
994 if (oldskb)
995 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
996 oldskb->len, PCI_DMA_TODEVICE);
997
998 spin_lock(&card->tx_queue_lock);
999 skb = skb_dequeue(&card->tx_queue[port]);
1000 if (!skb)
1001 card->tx_mask &= ~(1 << port);
1002 spin_unlock(&card->tx_queue_lock);
1003
1004 if (skb && !card->using_dma) {
1005 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
1006 tx_started |= 1 << port;
1007 oldskb = skb; /* We're done with this skb already */
1008 } else if (skb && card->using_dma) {
1009 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
1010 skb->len, PCI_DMA_TODEVICE);
1011 iowrite32(SKB_CB(skb)->dma_addr,
1012 card->config_regs + TX_DMA_ADDR(port));
1013 }
1014
1015 if (!oldskb)
1016 continue;
1017
1018 /* Clean up and free oldskb now it's gone */
1019 if (atmdebug) {
1020 dev_info(&card->dev->dev, "Transmitted: port %d\n",
1021 port);
1022 print_buffer(oldskb);
1023 }
1024
1025 vcc = SKB_CB(oldskb)->vcc;
1026
1027 if (vcc) {
1028 atomic_inc(&vcc->stats->tx);
1029 solos_pop(vcc, oldskb);
1030 } else
1031 dev_kfree_skb_irq(oldskb);
1032
1033 }
1034 }
1035 /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */
1036 if (tx_started)
1037 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
1038
1039 spin_unlock_irqrestore(&card->tx_lock, flags);
1040 return card_flags;
1041 }
1042
1043 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
1044 {
1045 struct solos_card *card = vcc->dev->dev_data;
1046 struct pkt_hdr *header;
1047 int pktlen;
1048
1049 pktlen = skb->len;
1050 if (pktlen > (BUF_SIZE - sizeof(*header))) {
1051 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
1052 solos_pop(vcc, skb);
1053 return 0;
1054 }
1055
1056 if (!skb_clone_writable(skb, sizeof(*header))) {
1057 int expand_by = 0;
1058 int ret;
1059
1060 if (skb_headroom(skb) < sizeof(*header))
1061 expand_by = sizeof(*header) - skb_headroom(skb);
1062
1063 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
1064 if (ret) {
1065 dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
1066 solos_pop(vcc, skb);
1067 return ret;
1068 }
1069 }
1070
1071 header = (void *)skb_push(skb, sizeof(*header));
1072
1073 /* This does _not_ include the size of the header */
1074 header->size = cpu_to_le16(pktlen);
1075 header->vpi = cpu_to_le16(vcc->vpi);
1076 header->vci = cpu_to_le16(vcc->vci);
1077 header->type = cpu_to_le16(PKT_DATA);
1078
1079 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1080
1081 return 0;
1082 }
1083
1084 static struct atmdev_ops fpga_ops = {
1085 .open = popen,
1086 .close = pclose,
1087 .ioctl = NULL,
1088 .getsockopt = NULL,
1089 .setsockopt = NULL,
1090 .send = psend,
1091 .send_oam = NULL,
1092 .phy_put = NULL,
1093 .phy_get = NULL,
1094 .change_qos = NULL,
1095 .proc_read = NULL,
1096 .owner = THIS_MODULE
1097 };
1098
1099 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1100 {
1101 int err;
1102 uint16_t fpga_ver;
1103 uint8_t major_ver, minor_ver;
1104 uint32_t data32;
1105 struct solos_card *card;
1106
1107 card = kzalloc(sizeof(*card), GFP_KERNEL);
1108 if (!card)
1109 return -ENOMEM;
1110
1111 card->dev = dev;
1112 init_waitqueue_head(&card->fw_wq);
1113 init_waitqueue_head(&card->param_wq);
1114
1115 err = pci_enable_device(dev);
1116 if (err) {
1117 dev_warn(&dev->dev, "Failed to enable PCI device\n");
1118 goto out;
1119 }
1120
1121 err = pci_set_dma_mask(dev, DMA_BIT_MASK(32));
1122 if (err) {
1123 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1124 goto out;
1125 }
1126
1127 err = pci_request_regions(dev, "solos");
1128 if (err) {
1129 dev_warn(&dev->dev, "Failed to request regions\n");
1130 goto out;
1131 }
1132
1133 card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1134 if (!card->config_regs) {
1135 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1136 goto out_release_regions;
1137 }
1138 card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1139 if (!card->buffers) {
1140 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1141 goto out_unmap_config;
1142 }
1143
1144 if (reset) {
1145 iowrite32(1, card->config_regs + FPGA_MODE);
1146 data32 = ioread32(card->config_regs + FPGA_MODE);
1147
1148 iowrite32(0, card->config_regs + FPGA_MODE);
1149 data32 = ioread32(card->config_regs + FPGA_MODE);
1150 }
1151
1152 data32 = ioread32(card->config_regs + FPGA_VER);
1153 fpga_ver = (data32 & 0x0000FFFF);
1154 major_ver = ((data32 & 0xFF000000) >> 24);
1155 minor_ver = ((data32 & 0x00FF0000) >> 16);
1156 card->fpga_version = FPGA_VERSION(major_ver,minor_ver);
1157 if (card->fpga_version > LEGACY_BUFFERS)
1158 card->buffer_size = BUF_SIZE;
1159 else
1160 card->buffer_size = OLD_BUF_SIZE;
1161 dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1162 major_ver, minor_ver, fpga_ver);
1163
1164 if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade ||
1165 db_fpga_upgrade || db_firmware_upgrade)) {
1166 dev_warn(&dev->dev,
1167 "FPGA too old; cannot upgrade flash. Use JTAG.\n");
1168 fpga_upgrade = firmware_upgrade = 0;
1169 db_fpga_upgrade = db_firmware_upgrade = 0;
1170 }
1171
1172 if (card->fpga_version >= DMA_SUPPORTED){
1173 card->using_dma = 1;
1174 } else {
1175 card->using_dma = 0;
1176 /* Set RX empty flag for all ports */
1177 iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1178 }
1179
1180 data32 = ioread32(card->config_regs + PORTS);
1181 card->nr_ports = (data32 & 0x000000FF);
1182
1183 pci_set_drvdata(dev, card);
1184
1185 tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1186 spin_lock_init(&card->tx_lock);
1187 spin_lock_init(&card->tx_queue_lock);
1188 spin_lock_init(&card->cli_queue_lock);
1189 spin_lock_init(&card->param_queue_lock);
1190 INIT_LIST_HEAD(&card->param_queue);
1191
1192 err = request_irq(dev->irq, solos_irq, IRQF_SHARED,
1193 "solos-pci", card);
1194 if (err) {
1195 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1196 goto out_unmap_both;
1197 }
1198
1199 iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1200
1201 if (fpga_upgrade)
1202 flash_upgrade(card, 0);
1203
1204 if (firmware_upgrade)
1205 flash_upgrade(card, 1);
1206
1207 if (db_fpga_upgrade)
1208 flash_upgrade(card, 2);
1209
1210 if (db_firmware_upgrade)
1211 flash_upgrade(card, 3);
1212
1213 err = atm_init(card, &dev->dev);
1214 if (err)
1215 goto out_free_irq;
1216
1217 return 0;
1218
1219 out_free_irq:
1220 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1221 free_irq(dev->irq, card);
1222 tasklet_kill(&card->tlet);
1223
1224 out_unmap_both:
1225 pci_set_drvdata(dev, NULL);
1226 pci_iounmap(dev, card->config_regs);
1227 out_unmap_config:
1228 pci_iounmap(dev, card->buffers);
1229 out_release_regions:
1230 pci_release_regions(dev);
1231 out:
1232 kfree(card);
1233 return err;
1234 }
1235
1236 static int atm_init(struct solos_card *card, struct device *parent)
1237 {
1238 int i;
1239
1240 for (i = 0; i < card->nr_ports; i++) {
1241 struct sk_buff *skb;
1242 struct pkt_hdr *header;
1243
1244 skb_queue_head_init(&card->tx_queue[i]);
1245 skb_queue_head_init(&card->cli_queue[i]);
1246
1247 card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL);
1248 if (!card->atmdev[i]) {
1249 dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1250 atm_remove(card);
1251 return -ENODEV;
1252 }
1253 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1254 dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1255 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1256 dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1257
1258 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1259
1260 card->atmdev[i]->ci_range.vpi_bits = 8;
1261 card->atmdev[i]->ci_range.vci_bits = 16;
1262 card->atmdev[i]->dev_data = card;
1263 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1264 atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_UNKNOWN);
1265
1266 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1267 if (!skb) {
1268 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1269 continue;
1270 }
1271
1272 header = (void *)skb_put(skb, sizeof(*header));
1273
1274 header->size = cpu_to_le16(0);
1275 header->vpi = cpu_to_le16(0);
1276 header->vci = cpu_to_le16(0);
1277 header->type = cpu_to_le16(PKT_STATUS);
1278
1279 fpga_queue(card, i, skb, NULL);
1280 }
1281 return 0;
1282 }
1283
1284 static void atm_remove(struct solos_card *card)
1285 {
1286 int i;
1287
1288 for (i = 0; i < card->nr_ports; i++) {
1289 if (card->atmdev[i]) {
1290 struct sk_buff *skb;
1291
1292 dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1293
1294 sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1295 atm_dev_deregister(card->atmdev[i]);
1296
1297 skb = card->rx_skb[i];
1298 if (skb) {
1299 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1300 RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
1301 dev_kfree_skb(skb);
1302 }
1303 skb = card->tx_skb[i];
1304 if (skb) {
1305 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
1306 skb->len, PCI_DMA_TODEVICE);
1307 dev_kfree_skb(skb);
1308 }
1309 while ((skb = skb_dequeue(&card->tx_queue[i])))
1310 dev_kfree_skb(skb);
1311
1312 }
1313 }
1314 }
1315
1316 static void fpga_remove(struct pci_dev *dev)
1317 {
1318 struct solos_card *card = pci_get_drvdata(dev);
1319
1320 /* Disable IRQs */
1321 iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1322
1323 /* Reset FPGA */
1324 iowrite32(1, card->config_regs + FPGA_MODE);
1325 (void)ioread32(card->config_regs + FPGA_MODE);
1326
1327 atm_remove(card);
1328
1329 free_irq(dev->irq, card);
1330 tasklet_kill(&card->tlet);
1331
1332 /* Release device from reset */
1333 iowrite32(0, card->config_regs + FPGA_MODE);
1334 (void)ioread32(card->config_regs + FPGA_MODE);
1335
1336 pci_iounmap(dev, card->buffers);
1337 pci_iounmap(dev, card->config_regs);
1338
1339 pci_release_regions(dev);
1340 pci_disable_device(dev);
1341
1342 pci_set_drvdata(dev, NULL);
1343 kfree(card);
1344 }
1345
1346 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1347 { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1348 { 0, }
1349 };
1350
1351 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1352
1353 static struct pci_driver fpga_driver = {
1354 .name = "solos",
1355 .id_table = fpga_pci_tbl,
1356 .probe = fpga_probe,
1357 .remove = fpga_remove,
1358 };
1359
1360
1361 static int __init solos_pci_init(void)
1362 {
1363 printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1364 return pci_register_driver(&fpga_driver);
1365 }
1366
1367 static void __exit solos_pci_exit(void)
1368 {
1369 pci_unregister_driver(&fpga_driver);
1370 printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1371 }
1372
1373 module_init(solos_pci_init);
1374 module_exit(solos_pci_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree