Root/
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 *); |
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 | card->atmdev[port]->signal = 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 | card->atmdev[port]->signal = 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 | |
448 | spin_lock(&card->cli_queue_lock); |
449 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); |
450 | spin_unlock(&card->cli_queue_lock); |
451 | if(skb == NULL) |
452 | return sprintf(buf, "No data.\n"); |
453 | |
454 | memcpy(buf, skb->data, skb->len); |
455 | dev_dbg(&card->dev->dev, "len: %d\n", skb->len); |
456 | |
457 | kfree_skb(skb); |
458 | return skb->len; |
459 | } |
460 | |
461 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) |
462 | { |
463 | struct sk_buff *skb; |
464 | struct pkt_hdr *header; |
465 | |
466 | if (size > (BUF_SIZE - sizeof(*header))) { |
467 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); |
468 | return 0; |
469 | } |
470 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); |
471 | if (!skb) { |
472 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); |
473 | return 0; |
474 | } |
475 | |
476 | header = (void *)skb_put(skb, sizeof(*header)); |
477 | |
478 | header->size = cpu_to_le16(size); |
479 | header->vpi = cpu_to_le16(0); |
480 | header->vci = cpu_to_le16(0); |
481 | header->type = cpu_to_le16(PKT_COMMAND); |
482 | |
483 | memcpy(skb_put(skb, size), buf, size); |
484 | |
485 | fpga_queue(card, dev, skb, NULL); |
486 | |
487 | return 0; |
488 | } |
489 | |
490 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, |
491 | const char *buf, size_t count) |
492 | { |
493 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); |
494 | struct solos_card *card = atmdev->dev_data; |
495 | int err; |
496 | |
497 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); |
498 | |
499 | return err?:count; |
500 | } |
501 | |
502 | static DEVICE_ATTR(console, 0644, console_show, console_store); |
503 | |
504 | |
505 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); |
506 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); |
507 | |
508 | #include "solos-attrlist.c" |
509 | |
510 | #undef SOLOS_ATTR_RO |
511 | #undef SOLOS_ATTR_RW |
512 | |
513 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, |
514 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, |
515 | |
516 | static struct attribute *solos_attrs[] = { |
517 | #include "solos-attrlist.c" |
518 | NULL |
519 | }; |
520 | |
521 | static struct attribute_group solos_attr_group = { |
522 | .attrs = solos_attrs, |
523 | .name = "parameters", |
524 | }; |
525 | |
526 | static int flash_upgrade(struct solos_card *card, int chip) |
527 | { |
528 | const struct firmware *fw; |
529 | const char *fw_name; |
530 | uint32_t data32 = 0; |
531 | int blocksize = 0; |
532 | int numblocks = 0; |
533 | int offset; |
534 | |
535 | switch (chip) { |
536 | case 0: |
537 | fw_name = "solos-FPGA.bin"; |
538 | blocksize = FPGA_BLOCK; |
539 | break; |
540 | case 1: |
541 | fw_name = "solos-Firmware.bin"; |
542 | blocksize = SOLOS_BLOCK; |
543 | break; |
544 | case 2: |
545 | if (card->fpga_version > LEGACY_BUFFERS){ |
546 | fw_name = "solos-db-FPGA.bin"; |
547 | blocksize = FPGA_BLOCK; |
548 | } else { |
549 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
550 | " daughter board upgrades\n"); |
551 | return -EPERM; |
552 | } |
553 | break; |
554 | case 3: |
555 | if (card->fpga_version > LEGACY_BUFFERS){ |
556 | fw_name = "solos-Firmware.bin"; |
557 | blocksize = SOLOS_BLOCK; |
558 | } else { |
559 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
560 | " daughter board upgrades\n"); |
561 | return -EPERM; |
562 | } |
563 | break; |
564 | default: |
565 | return -ENODEV; |
566 | } |
567 | |
568 | if (request_firmware(&fw, fw_name, &card->dev->dev)) |
569 | return -ENOENT; |
570 | |
571 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); |
572 | |
573 | numblocks = fw->size / blocksize; |
574 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); |
575 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
576 | |
577 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
578 | iowrite32(1, card->config_regs + FPGA_MODE); |
579 | data32 = ioread32(card->config_regs + FPGA_MODE); |
580 | |
581 | /* Set mode to Chip Erase */ |
582 | if(chip == 0 || chip == 2) |
583 | dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); |
584 | if(chip == 1 || chip == 3) |
585 | dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); |
586 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); |
587 | |
588 | |
589 | iowrite32(1, card->config_regs + WRITE_FLASH); |
590 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); |
591 | |
592 | for (offset = 0; offset < fw->size; offset += blocksize) { |
593 | int i; |
594 | |
595 | /* Clear write flag */ |
596 | iowrite32(0, card->config_regs + WRITE_FLASH); |
597 | |
598 | /* Set mode to Block Write */ |
599 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ |
600 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); |
601 | |
602 | /* Copy block to buffer, swapping each 16 bits */ |
603 | for(i = 0; i < blocksize; i += 4) { |
604 | uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); |
605 | if(card->fpga_version > LEGACY_BUFFERS) |
606 | iowrite32(word, FLASH_BUF + i); |
607 | else |
608 | iowrite32(word, RX_BUF(card, 3) + i); |
609 | } |
610 | |
611 | /* Specify block number and then trigger flash write */ |
612 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); |
613 | iowrite32(1, card->config_regs + WRITE_FLASH); |
614 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); |
615 | } |
616 | |
617 | release_firmware(fw); |
618 | iowrite32(0, card->config_regs + WRITE_FLASH); |
619 | iowrite32(0, card->config_regs + FPGA_MODE); |
620 | iowrite32(0, card->config_regs + FLASH_MODE); |
621 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); |
622 | return 0; |
623 | } |
624 | |
625 | static irqreturn_t solos_irq(int irq, void *dev_id) |
626 | { |
627 | struct solos_card *card = dev_id; |
628 | int handled = 1; |
629 | |
630 | iowrite32(0, card->config_regs + IRQ_CLEAR); |
631 | |
632 | /* If we're up and running, just kick the tasklet to process TX/RX */ |
633 | if (card->atmdev[0]) |
634 | tasklet_schedule(&card->tlet); |
635 | else |
636 | wake_up(&card->fw_wq); |
637 | |
638 | return IRQ_RETVAL(handled); |
639 | } |
640 | |
641 | void solos_bh(unsigned long card_arg) |
642 | { |
643 | struct solos_card *card = (void *)card_arg; |
644 | uint32_t card_flags; |
645 | uint32_t rx_done = 0; |
646 | int port; |
647 | |
648 | /* |
649 | * Since fpga_tx() is going to need to read the flags under its lock, |
650 | * it can return them to us so that we don't have to hit PCI MMIO |
651 | * again for the same information |
652 | */ |
653 | card_flags = fpga_tx(card); |
654 | |
655 | for (port = 0; port < card->nr_ports; port++) { |
656 | if (card_flags & (0x10 << port)) { |
657 | struct pkt_hdr _hdr, *header; |
658 | struct sk_buff *skb; |
659 | struct atm_vcc *vcc; |
660 | int size; |
661 | |
662 | if (card->using_dma) { |
663 | skb = card->rx_skb[port]; |
664 | card->rx_skb[port] = NULL; |
665 | |
666 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, |
667 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); |
668 | |
669 | header = (void *)skb->data; |
670 | size = le16_to_cpu(header->size); |
671 | skb_put(skb, size + sizeof(*header)); |
672 | skb_pull(skb, sizeof(*header)); |
673 | } else { |
674 | header = &_hdr; |
675 | |
676 | rx_done |= 0x10 << port; |
677 | |
678 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
679 | |
680 | size = le16_to_cpu(header->size); |
681 | if (size > (card->buffer_size - sizeof(*header))){ |
682 | dev_warn(&card->dev->dev, "Invalid buffer size\n"); |
683 | continue; |
684 | } |
685 | |
686 | skb = alloc_skb(size + 1, GFP_ATOMIC); |
687 | if (!skb) { |
688 | if (net_ratelimit()) |
689 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); |
690 | continue; |
691 | } |
692 | |
693 | memcpy_fromio(skb_put(skb, size), |
694 | RX_BUF(card, port) + sizeof(*header), |
695 | size); |
696 | } |
697 | if (atmdebug) { |
698 | dev_info(&card->dev->dev, "Received: device %d\n", port); |
699 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
700 | size, le16_to_cpu(header->vpi), |
701 | le16_to_cpu(header->vci)); |
702 | print_buffer(skb); |
703 | } |
704 | |
705 | switch (le16_to_cpu(header->type)) { |
706 | case PKT_DATA: |
707 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
708 | le16_to_cpu(header->vci)); |
709 | if (!vcc) { |
710 | if (net_ratelimit()) |
711 | dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n", |
712 | le16_to_cpu(header->vci), le16_to_cpu(header->vpi), |
713 | port); |
714 | continue; |
715 | } |
716 | atm_charge(vcc, skb->truesize); |
717 | vcc->push(vcc, skb); |
718 | atomic_inc(&vcc->stats->rx); |
719 | break; |
720 | |
721 | case PKT_STATUS: |
722 | if (process_status(card, port, skb) && |
723 | net_ratelimit()) { |
724 | dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); |
725 | print_buffer(skb); |
726 | } |
727 | dev_kfree_skb_any(skb); |
728 | break; |
729 | |
730 | case PKT_COMMAND: |
731 | default: /* FIXME: Not really, surely? */ |
732 | if (process_command(card, port, skb)) |
733 | break; |
734 | spin_lock(&card->cli_queue_lock); |
735 | if (skb_queue_len(&card->cli_queue[port]) > 10) { |
736 | if (net_ratelimit()) |
737 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", |
738 | port); |
739 | dev_kfree_skb_any(skb); |
740 | } else |
741 | skb_queue_tail(&card->cli_queue[port], skb); |
742 | spin_unlock(&card->cli_queue_lock); |
743 | break; |
744 | } |
745 | } |
746 | /* Allocate RX skbs for any ports which need them */ |
747 | if (card->using_dma && card->atmdev[port] && |
748 | !card->rx_skb[port]) { |
749 | struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC); |
750 | if (skb) { |
751 | SKB_CB(skb)->dma_addr = |
752 | pci_map_single(card->dev, skb->data, |
753 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); |
754 | iowrite32(SKB_CB(skb)->dma_addr, |
755 | card->config_regs + RX_DMA_ADDR(port)); |
756 | card->rx_skb[port] = skb; |
757 | } else { |
758 | if (net_ratelimit()) |
759 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); |
760 | |
761 | /* We'll have to try again later */ |
762 | tasklet_schedule(&card->tlet); |
763 | } |
764 | } |
765 | } |
766 | if (rx_done) |
767 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); |
768 | |
769 | return; |
770 | } |
771 | |
772 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) |
773 | { |
774 | struct hlist_head *head; |
775 | struct atm_vcc *vcc = NULL; |
776 | struct hlist_node *node; |
777 | struct sock *s; |
778 | |
779 | read_lock(&vcc_sklist_lock); |
780 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; |
781 | sk_for_each(s, node, head) { |
782 | vcc = atm_sk(s); |
783 | if (vcc->dev == dev && vcc->vci == vci && |
784 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE) |
785 | goto out; |
786 | } |
787 | vcc = NULL; |
788 | out: |
789 | read_unlock(&vcc_sklist_lock); |
790 | return vcc; |
791 | } |
792 | |
793 | static int list_vccs(int vci) |
794 | { |
795 | struct hlist_head *head; |
796 | struct atm_vcc *vcc; |
797 | struct hlist_node *node; |
798 | struct sock *s; |
799 | int num_found = 0; |
800 | int i; |
801 | |
802 | read_lock(&vcc_sklist_lock); |
803 | if (vci != 0){ |
804 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; |
805 | sk_for_each(s, node, head) { |
806 | num_found ++; |
807 | vcc = atm_sk(s); |
808 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", |
809 | vcc->dev->number, |
810 | vcc->vpi, |
811 | vcc->vci); |
812 | } |
813 | } else { |
814 | for(i = 0; i < VCC_HTABLE_SIZE; i++){ |
815 | head = &vcc_hash[i]; |
816 | sk_for_each(s, node, head) { |
817 | num_found ++; |
818 | vcc = atm_sk(s); |
819 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", |
820 | vcc->dev->number, |
821 | vcc->vpi, |
822 | vcc->vci); |
823 | } |
824 | } |
825 | } |
826 | read_unlock(&vcc_sklist_lock); |
827 | return num_found; |
828 | } |
829 | |
830 | static void release_vccs(struct atm_dev *dev) |
831 | { |
832 | int i; |
833 | |
834 | write_lock_irq(&vcc_sklist_lock); |
835 | for (i = 0; i < VCC_HTABLE_SIZE; i++) { |
836 | struct hlist_head *head = &vcc_hash[i]; |
837 | struct hlist_node *node, *tmp; |
838 | struct sock *s; |
839 | struct atm_vcc *vcc; |
840 | |
841 | sk_for_each_safe(s, node, tmp, head) { |
842 | vcc = atm_sk(s); |
843 | if (vcc->dev == dev) { |
844 | vcc_release_async(vcc, -EPIPE); |
845 | sk_del_node_init(s); |
846 | } |
847 | } |
848 | } |
849 | write_unlock_irq(&vcc_sklist_lock); |
850 | } |
851 | |
852 | |
853 | static int popen(struct atm_vcc *vcc) |
854 | { |
855 | struct solos_card *card = vcc->dev->dev_data; |
856 | struct sk_buff *skb; |
857 | struct pkt_hdr *header; |
858 | |
859 | if (vcc->qos.aal != ATM_AAL5) { |
860 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", |
861 | vcc->qos.aal); |
862 | return -EINVAL; |
863 | } |
864 | |
865 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
866 | if (!skb && net_ratelimit()) { |
867 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); |
868 | return -ENOMEM; |
869 | } |
870 | header = (void *)skb_put(skb, sizeof(*header)); |
871 | |
872 | header->size = cpu_to_le16(0); |
873 | header->vpi = cpu_to_le16(vcc->vpi); |
874 | header->vci = cpu_to_le16(vcc->vci); |
875 | header->type = cpu_to_le16(PKT_POPEN); |
876 | |
877 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); |
878 | |
879 | set_bit(ATM_VF_ADDR, &vcc->flags); |
880 | set_bit(ATM_VF_READY, &vcc->flags); |
881 | list_vccs(0); |
882 | |
883 | |
884 | return 0; |
885 | } |
886 | |
887 | static void pclose(struct atm_vcc *vcc) |
888 | { |
889 | struct solos_card *card = vcc->dev->dev_data; |
890 | struct sk_buff *skb; |
891 | struct pkt_hdr *header; |
892 | |
893 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
894 | if (!skb) { |
895 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); |
896 | return; |
897 | } |
898 | header = (void *)skb_put(skb, sizeof(*header)); |
899 | |
900 | header->size = cpu_to_le16(0); |
901 | header->vpi = cpu_to_le16(vcc->vpi); |
902 | header->vci = cpu_to_le16(vcc->vci); |
903 | header->type = cpu_to_le16(PKT_PCLOSE); |
904 | |
905 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); |
906 | |
907 | clear_bit(ATM_VF_ADDR, &vcc->flags); |
908 | clear_bit(ATM_VF_READY, &vcc->flags); |
909 | |
910 | return; |
911 | } |
912 | |
913 | static int print_buffer(struct sk_buff *buf) |
914 | { |
915 | int len,i; |
916 | char msg[500]; |
917 | char item[10]; |
918 | |
919 | len = buf->len; |
920 | for (i = 0; i < len; i++){ |
921 | if(i % 8 == 0) |
922 | sprintf(msg, "%02X: ", i); |
923 | |
924 | sprintf(item,"%02X ",*(buf->data + i)); |
925 | strcat(msg, item); |
926 | if(i % 8 == 7) { |
927 | sprintf(item, "\n"); |
928 | strcat(msg, item); |
929 | printk(KERN_DEBUG "%s", msg); |
930 | } |
931 | } |
932 | if (i % 8 != 0) { |
933 | sprintf(item, "\n"); |
934 | strcat(msg, item); |
935 | printk(KERN_DEBUG "%s", msg); |
936 | } |
937 | printk(KERN_DEBUG "\n"); |
938 | |
939 | return 0; |
940 | } |
941 | |
942 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, |
943 | struct atm_vcc *vcc) |
944 | { |
945 | int old_len; |
946 | unsigned long flags; |
947 | |
948 | SKB_CB(skb)->vcc = vcc; |
949 | |
950 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
951 | old_len = skb_queue_len(&card->tx_queue[port]); |
952 | skb_queue_tail(&card->tx_queue[port], skb); |
953 | if (!old_len) |
954 | card->tx_mask |= (1 << port); |
955 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); |
956 | |
957 | /* Theoretically we could just schedule the tasklet here, but |
958 | that introduces latency we don't want -- it's noticeable */ |
959 | if (!old_len) |
960 | fpga_tx(card); |
961 | } |
962 | |
963 | static uint32_t fpga_tx(struct solos_card *card) |
964 | { |
965 | uint32_t tx_pending, card_flags; |
966 | uint32_t tx_started = 0; |
967 | struct sk_buff *skb; |
968 | struct atm_vcc *vcc; |
969 | unsigned char port; |
970 | unsigned long flags; |
971 | |
972 | spin_lock_irqsave(&card->tx_lock, flags); |
973 | |
974 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); |
975 | /* |
976 | * The queue lock is required for _writing_ to tx_mask, but we're |
977 | * OK to read it here without locking. The only potential update |
978 | * that we could race with is in fpga_queue() where it sets a bit |
979 | * for a new port... but it's going to call this function again if |
980 | * it's doing that, anyway. |
981 | */ |
982 | tx_pending = card->tx_mask & ~card_flags; |
983 | |
984 | for (port = 0; tx_pending; tx_pending >>= 1, port++) { |
985 | if (tx_pending & 1) { |
986 | struct sk_buff *oldskb = card->tx_skb[port]; |
987 | if (oldskb) |
988 | pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, |
989 | oldskb->len, PCI_DMA_TODEVICE); |
990 | |
991 | spin_lock(&card->tx_queue_lock); |
992 | skb = skb_dequeue(&card->tx_queue[port]); |
993 | if (!skb) |
994 | card->tx_mask &= ~(1 << port); |
995 | spin_unlock(&card->tx_queue_lock); |
996 | |
997 | if (skb && !card->using_dma) { |
998 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); |
999 | tx_started |= 1 << port; |
1000 | oldskb = skb; /* We're done with this skb already */ |
1001 | } else if (skb && card->using_dma) { |
1002 | SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data, |
1003 | skb->len, PCI_DMA_TODEVICE); |
1004 | iowrite32(SKB_CB(skb)->dma_addr, |
1005 | card->config_regs + TX_DMA_ADDR(port)); |
1006 | } |
1007 | |
1008 | if (!oldskb) |
1009 | continue; |
1010 | |
1011 | /* Clean up and free oldskb now it's gone */ |
1012 | if (atmdebug) { |
1013 | dev_info(&card->dev->dev, "Transmitted: port %d\n", |
1014 | port); |
1015 | print_buffer(oldskb); |
1016 | } |
1017 | |
1018 | vcc = SKB_CB(oldskb)->vcc; |
1019 | |
1020 | if (vcc) { |
1021 | atomic_inc(&vcc->stats->tx); |
1022 | solos_pop(vcc, oldskb); |
1023 | } else |
1024 | dev_kfree_skb_irq(oldskb); |
1025 | |
1026 | } |
1027 | } |
1028 | /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ |
1029 | if (tx_started) |
1030 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); |
1031 | |
1032 | spin_unlock_irqrestore(&card->tx_lock, flags); |
1033 | return card_flags; |
1034 | } |
1035 | |
1036 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) |
1037 | { |
1038 | struct solos_card *card = vcc->dev->dev_data; |
1039 | struct pkt_hdr *header; |
1040 | int pktlen; |
1041 | |
1042 | pktlen = skb->len; |
1043 | if (pktlen > (BUF_SIZE - sizeof(*header))) { |
1044 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
1045 | solos_pop(vcc, skb); |
1046 | return 0; |
1047 | } |
1048 | |
1049 | if (!skb_clone_writable(skb, sizeof(*header))) { |
1050 | int expand_by = 0; |
1051 | int ret; |
1052 | |
1053 | if (skb_headroom(skb) < sizeof(*header)) |
1054 | expand_by = sizeof(*header) - skb_headroom(skb); |
1055 | |
1056 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); |
1057 | if (ret) { |
1058 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
1059 | solos_pop(vcc, skb); |
1060 | return ret; |
1061 | } |
1062 | } |
1063 | |
1064 | header = (void *)skb_push(skb, sizeof(*header)); |
1065 | |
1066 | /* This does _not_ include the size of the header */ |
1067 | header->size = cpu_to_le16(pktlen); |
1068 | header->vpi = cpu_to_le16(vcc->vpi); |
1069 | header->vci = cpu_to_le16(vcc->vci); |
1070 | header->type = cpu_to_le16(PKT_DATA); |
1071 | |
1072 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); |
1073 | |
1074 | return 0; |
1075 | } |
1076 | |
1077 | static struct atmdev_ops fpga_ops = { |
1078 | .open = popen, |
1079 | .close = pclose, |
1080 | .ioctl = NULL, |
1081 | .getsockopt = NULL, |
1082 | .setsockopt = NULL, |
1083 | .send = psend, |
1084 | .send_oam = NULL, |
1085 | .phy_put = NULL, |
1086 | .phy_get = NULL, |
1087 | .change_qos = NULL, |
1088 | .proc_read = NULL, |
1089 | .owner = THIS_MODULE |
1090 | }; |
1091 | |
1092 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) |
1093 | { |
1094 | int err; |
1095 | uint16_t fpga_ver; |
1096 | uint8_t major_ver, minor_ver; |
1097 | uint32_t data32; |
1098 | struct solos_card *card; |
1099 | |
1100 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1101 | if (!card) |
1102 | return -ENOMEM; |
1103 | |
1104 | card->dev = dev; |
1105 | init_waitqueue_head(&card->fw_wq); |
1106 | init_waitqueue_head(&card->param_wq); |
1107 | |
1108 | err = pci_enable_device(dev); |
1109 | if (err) { |
1110 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); |
1111 | goto out; |
1112 | } |
1113 | |
1114 | err = pci_set_dma_mask(dev, DMA_BIT_MASK(32)); |
1115 | if (err) { |
1116 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); |
1117 | goto out; |
1118 | } |
1119 | |
1120 | err = pci_request_regions(dev, "solos"); |
1121 | if (err) { |
1122 | dev_warn(&dev->dev, "Failed to request regions\n"); |
1123 | goto out; |
1124 | } |
1125 | |
1126 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); |
1127 | if (!card->config_regs) { |
1128 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); |
1129 | goto out_release_regions; |
1130 | } |
1131 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); |
1132 | if (!card->buffers) { |
1133 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); |
1134 | goto out_unmap_config; |
1135 | } |
1136 | |
1137 | if (reset) { |
1138 | iowrite32(1, card->config_regs + FPGA_MODE); |
1139 | data32 = ioread32(card->config_regs + FPGA_MODE); |
1140 | |
1141 | iowrite32(0, card->config_regs + FPGA_MODE); |
1142 | data32 = ioread32(card->config_regs + FPGA_MODE); |
1143 | } |
1144 | |
1145 | data32 = ioread32(card->config_regs + FPGA_VER); |
1146 | fpga_ver = (data32 & 0x0000FFFF); |
1147 | major_ver = ((data32 & 0xFF000000) >> 24); |
1148 | minor_ver = ((data32 & 0x00FF0000) >> 16); |
1149 | card->fpga_version = FPGA_VERSION(major_ver,minor_ver); |
1150 | if (card->fpga_version > LEGACY_BUFFERS) |
1151 | card->buffer_size = BUF_SIZE; |
1152 | else |
1153 | card->buffer_size = OLD_BUF_SIZE; |
1154 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", |
1155 | major_ver, minor_ver, fpga_ver); |
1156 | |
1157 | if (card->fpga_version >= DMA_SUPPORTED){ |
1158 | card->using_dma = 1; |
1159 | } else { |
1160 | card->using_dma = 0; |
1161 | /* Set RX empty flag for all ports */ |
1162 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); |
1163 | } |
1164 | |
1165 | data32 = ioread32(card->config_regs + PORTS); |
1166 | card->nr_ports = (data32 & 0x000000FF); |
1167 | |
1168 | pci_set_drvdata(dev, card); |
1169 | |
1170 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1171 | spin_lock_init(&card->tx_lock); |
1172 | spin_lock_init(&card->tx_queue_lock); |
1173 | spin_lock_init(&card->cli_queue_lock); |
1174 | spin_lock_init(&card->param_queue_lock); |
1175 | INIT_LIST_HEAD(&card->param_queue); |
1176 | |
1177 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
1178 | "solos-pci", card); |
1179 | if (err) { |
1180 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
1181 | goto out_unmap_both; |
1182 | } |
1183 | |
1184 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); |
1185 | |
1186 | if (fpga_upgrade) |
1187 | flash_upgrade(card, 0); |
1188 | |
1189 | if (firmware_upgrade) |
1190 | flash_upgrade(card, 1); |
1191 | |
1192 | if (db_fpga_upgrade) |
1193 | flash_upgrade(card, 2); |
1194 | |
1195 | if (db_firmware_upgrade) |
1196 | flash_upgrade(card, 3); |
1197 | |
1198 | err = atm_init(card); |
1199 | if (err) |
1200 | goto out_free_irq; |
1201 | |
1202 | return 0; |
1203 | |
1204 | out_free_irq: |
1205 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); |
1206 | free_irq(dev->irq, card); |
1207 | tasklet_kill(&card->tlet); |
1208 | |
1209 | out_unmap_both: |
1210 | pci_set_drvdata(dev, NULL); |
1211 | pci_iounmap(dev, card->config_regs); |
1212 | out_unmap_config: |
1213 | pci_iounmap(dev, card->buffers); |
1214 | out_release_regions: |
1215 | pci_release_regions(dev); |
1216 | out: |
1217 | kfree(card); |
1218 | return err; |
1219 | } |
1220 | |
1221 | static int atm_init(struct solos_card *card) |
1222 | { |
1223 | int i; |
1224 | |
1225 | for (i = 0; i < card->nr_ports; i++) { |
1226 | struct sk_buff *skb; |
1227 | struct pkt_hdr *header; |
1228 | |
1229 | skb_queue_head_init(&card->tx_queue[i]); |
1230 | skb_queue_head_init(&card->cli_queue[i]); |
1231 | |
1232 | card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); |
1233 | if (!card->atmdev[i]) { |
1234 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); |
1235 | atm_remove(card); |
1236 | return -ENODEV; |
1237 | } |
1238 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) |
1239 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); |
1240 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1241 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); |
1242 | |
1243 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); |
1244 | |
1245 | card->atmdev[i]->ci_range.vpi_bits = 8; |
1246 | card->atmdev[i]->ci_range.vci_bits = 16; |
1247 | card->atmdev[i]->dev_data = card; |
1248 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; |
1249 | card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN; |
1250 | |
1251 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
1252 | if (!skb) { |
1253 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); |
1254 | continue; |
1255 | } |
1256 | |
1257 | header = (void *)skb_put(skb, sizeof(*header)); |
1258 | |
1259 | header->size = cpu_to_le16(0); |
1260 | header->vpi = cpu_to_le16(0); |
1261 | header->vci = cpu_to_le16(0); |
1262 | header->type = cpu_to_le16(PKT_STATUS); |
1263 | |
1264 | fpga_queue(card, i, skb, NULL); |
1265 | } |
1266 | return 0; |
1267 | } |
1268 | |
1269 | static void atm_remove(struct solos_card *card) |
1270 | { |
1271 | int i; |
1272 | |
1273 | for (i = 0; i < card->nr_ports; i++) { |
1274 | if (card->atmdev[i]) { |
1275 | struct sk_buff *skb; |
1276 | |
1277 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); |
1278 | |
1279 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); |
1280 | atm_dev_deregister(card->atmdev[i]); |
1281 | |
1282 | skb = card->rx_skb[i]; |
1283 | if (skb) { |
1284 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, |
1285 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); |
1286 | dev_kfree_skb(skb); |
1287 | } |
1288 | skb = card->tx_skb[i]; |
1289 | if (skb) { |
1290 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, |
1291 | skb->len, PCI_DMA_TODEVICE); |
1292 | dev_kfree_skb(skb); |
1293 | } |
1294 | while ((skb = skb_dequeue(&card->tx_queue[i]))) |
1295 | dev_kfree_skb(skb); |
1296 | |
1297 | } |
1298 | } |
1299 | } |
1300 | |
1301 | static void fpga_remove(struct pci_dev *dev) |
1302 | { |
1303 | struct solos_card *card = pci_get_drvdata(dev); |
1304 | |
1305 | /* Disable IRQs */ |
1306 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); |
1307 | |
1308 | /* Reset FPGA */ |
1309 | iowrite32(1, card->config_regs + FPGA_MODE); |
1310 | (void)ioread32(card->config_regs + FPGA_MODE); |
1311 | |
1312 | atm_remove(card); |
1313 | |
1314 | free_irq(dev->irq, card); |
1315 | tasklet_kill(&card->tlet); |
1316 | |
1317 | /* Release device from reset */ |
1318 | iowrite32(0, card->config_regs + FPGA_MODE); |
1319 | (void)ioread32(card->config_regs + FPGA_MODE); |
1320 | |
1321 | pci_iounmap(dev, card->buffers); |
1322 | pci_iounmap(dev, card->config_regs); |
1323 | |
1324 | pci_release_regions(dev); |
1325 | pci_disable_device(dev); |
1326 | |
1327 | pci_set_drvdata(dev, NULL); |
1328 | kfree(card); |
1329 | } |
1330 | |
1331 | static struct pci_device_id fpga_pci_tbl[] __devinitdata = { |
1332 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
1333 | { 0, } |
1334 | }; |
1335 | |
1336 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); |
1337 | |
1338 | static struct pci_driver fpga_driver = { |
1339 | .name = "solos", |
1340 | .id_table = fpga_pci_tbl, |
1341 | .probe = fpga_probe, |
1342 | .remove = fpga_remove, |
1343 | }; |
1344 | |
1345 | |
1346 | static int __init solos_pci_init(void) |
1347 | { |
1348 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); |
1349 | return pci_register_driver(&fpga_driver); |
1350 | } |
1351 | |
1352 | static void __exit solos_pci_exit(void) |
1353 | { |
1354 | pci_unregister_driver(&fpga_driver); |
1355 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); |
1356 | } |
1357 | |
1358 | module_init(solos_pci_init); |
1359 | module_exit(solos_pci_exit); |
1360 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9