Commit | Line | Data |
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9c54004e DW |
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> | |
7c4015bd | 12 | * Treker Chen <treker@xrio.com> |
9c54004e DW |
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> | |
7c4015bd | 40 | #include <linux/firmware.h> |
01e2ffac DW |
41 | #include <linux/ctype.h> |
42 | #include <linux/swab.h> | |
9c54004e | 43 | |
7c4015bd | 44 | #define VERSION "0.07" |
9c54004e DW |
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 | |
7c4015bd SF |
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 | |
9c54004e DW |
58 | |
59 | #define DATA_RAM_SIZE 32768 | |
60 | #define BUF_SIZE 4096 | |
7c4015bd SF |
61 | #define FPGA_PAGE 528 /* FPGA flash page size*/ |
62 | #define SOLOS_PAGE 512 /* Solos flash page size*/ | |
63 | #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/ | |
64 | #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/ | |
9c54004e DW |
65 | |
66 | #define RX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2) | |
67 | #define TX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2 + BUF_SIZE) | |
68 | ||
69 | static int debug = 0; | |
70 | static int atmdebug = 0; | |
7c4015bd SF |
71 | static int firmware_upgrade = 0; |
72 | static int fpga_upgrade = 0; | |
9c54004e DW |
73 | |
74 | struct pkt_hdr { | |
75 | __le16 size; | |
76 | __le16 vpi; | |
77 | __le16 vci; | |
78 | __le16 type; | |
79 | }; | |
80 | ||
81 | #define PKT_DATA 0 | |
82 | #define PKT_COMMAND 1 | |
83 | #define PKT_POPEN 3 | |
84 | #define PKT_PCLOSE 4 | |
87ebb186 | 85 | #define PKT_STATUS 5 |
9c54004e DW |
86 | |
87 | struct solos_card { | |
88 | void __iomem *config_regs; | |
89 | void __iomem *buffers; | |
90 | int nr_ports; | |
91 | struct pci_dev *dev; | |
92 | struct atm_dev *atmdev[4]; | |
93 | struct tasklet_struct tlet; | |
94 | spinlock_t tx_lock; | |
95 | spinlock_t tx_queue_lock; | |
96 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
97 | spinlock_t param_queue_lock; |
98 | struct list_head param_queue; | |
9c54004e DW |
99 | struct sk_buff_head tx_queue[4]; |
100 | struct sk_buff_head cli_queue[4]; | |
01e2ffac | 101 | wait_queue_head_t param_wq; |
fa755b9f | 102 | wait_queue_head_t fw_wq; |
9c54004e DW |
103 | }; |
104 | ||
01e2ffac DW |
105 | |
106 | struct solos_param { | |
107 | struct list_head list; | |
108 | pid_t pid; | |
109 | int port; | |
110 | struct sk_buff *response; | |
111 | wait_queue_head_t wq; | |
112 | }; | |
113 | ||
9c54004e DW |
114 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) |
115 | ||
116 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
117 | MODULE_DESCRIPTION("Solos PCI driver"); | |
118 | MODULE_VERSION(VERSION); | |
119 | MODULE_LICENSE("GPL"); | |
120 | MODULE_PARM_DESC(debug, "Enable Loopback"); | |
121 | MODULE_PARM_DESC(atmdebug, "Print ATM data"); | |
7c4015bd SF |
122 | MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); |
123 | MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); | |
9c54004e | 124 | module_param(debug, int, 0444); |
4306cad6 | 125 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
126 | module_param(firmware_upgrade, int, 0444); |
127 | module_param(fpga_upgrade, int, 0444); | |
9c54004e | 128 | |
9c54004e DW |
129 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, |
130 | struct atm_vcc *vcc); | |
131 | static int fpga_tx(struct solos_card *); | |
132 | static irqreturn_t solos_irq(int irq, void *dev_id); | |
133 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
134 | static int list_vccs(int vci); | |
1e615df6 | 135 | static void release_vccs(struct atm_dev *dev); |
9c54004e DW |
136 | static int atm_init(struct solos_card *); |
137 | static void atm_remove(struct solos_card *); | |
138 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
139 | static void solos_bh(unsigned long); | |
140 | static int print_buffer(struct sk_buff *buf); | |
141 | ||
142 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
143 | { | |
144 | if (vcc->pop) | |
145 | vcc->pop(vcc, skb); | |
146 | else | |
147 | dev_kfree_skb_any(skb); | |
148 | } | |
149 | ||
01e2ffac DW |
150 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
151 | char *buf) | |
152 | { | |
153 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
154 | struct solos_card *card = atmdev->dev_data; | |
155 | struct solos_param prm; | |
156 | struct sk_buff *skb; | |
157 | struct pkt_hdr *header; | |
158 | int buflen; | |
159 | ||
160 | buflen = strlen(attr->attr.name) + 10; | |
161 | ||
162 | skb = alloc_skb(buflen, GFP_KERNEL); | |
163 | if (!skb) { | |
164 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
165 | return -ENOMEM; | |
166 | } | |
167 | ||
168 | header = (void *)skb_put(skb, sizeof(*header)); | |
169 | ||
170 | buflen = snprintf((void *)&header[1], buflen - 1, | |
171 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
172 | skb_put(skb, buflen); | |
173 | ||
174 | header->size = cpu_to_le16(buflen); | |
175 | header->vpi = cpu_to_le16(0); | |
176 | header->vci = cpu_to_le16(0); | |
177 | header->type = cpu_to_le16(PKT_COMMAND); | |
178 | ||
179 | prm.pid = current->pid; | |
180 | prm.response = NULL; | |
181 | prm.port = SOLOS_CHAN(atmdev); | |
182 | ||
183 | spin_lock_irq(&card->param_queue_lock); | |
184 | list_add(&prm.list, &card->param_queue); | |
185 | spin_unlock_irq(&card->param_queue_lock); | |
186 | ||
187 | fpga_queue(card, prm.port, skb, NULL); | |
188 | ||
189 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
190 | ||
191 | spin_lock_irq(&card->param_queue_lock); | |
192 | list_del(&prm.list); | |
193 | spin_unlock_irq(&card->param_queue_lock); | |
194 | ||
195 | if (!prm.response) | |
196 | return -EIO; | |
197 | ||
198 | buflen = prm.response->len; | |
199 | memcpy(buf, prm.response->data, buflen); | |
200 | kfree_skb(prm.response); | |
201 | ||
202 | return buflen; | |
203 | } | |
204 | ||
205 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
206 | const char *buf, size_t count) | |
207 | { | |
208 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
209 | struct solos_card *card = atmdev->dev_data; | |
210 | struct solos_param prm; | |
211 | struct sk_buff *skb; | |
212 | struct pkt_hdr *header; | |
213 | int buflen; | |
214 | ssize_t ret; | |
215 | ||
216 | buflen = strlen(attr->attr.name) + 11 + count; | |
217 | ||
218 | skb = alloc_skb(buflen, GFP_KERNEL); | |
219 | if (!skb) { | |
220 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
221 | return -ENOMEM; | |
222 | } | |
223 | ||
224 | header = (void *)skb_put(skb, sizeof(*header)); | |
225 | ||
226 | buflen = snprintf((void *)&header[1], buflen - 1, | |
227 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
228 | ||
229 | skb_put(skb, buflen); | |
230 | header->size = cpu_to_le16(buflen); | |
231 | header->vpi = cpu_to_le16(0); | |
232 | header->vci = cpu_to_le16(0); | |
233 | header->type = cpu_to_le16(PKT_COMMAND); | |
234 | ||
235 | prm.pid = current->pid; | |
236 | prm.response = NULL; | |
237 | prm.port = SOLOS_CHAN(atmdev); | |
238 | ||
239 | spin_lock_irq(&card->param_queue_lock); | |
240 | list_add(&prm.list, &card->param_queue); | |
241 | spin_unlock_irq(&card->param_queue_lock); | |
242 | ||
243 | fpga_queue(card, prm.port, skb, NULL); | |
244 | ||
245 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
246 | ||
247 | spin_lock_irq(&card->param_queue_lock); | |
248 | list_del(&prm.list); | |
249 | spin_unlock_irq(&card->param_queue_lock); | |
250 | ||
251 | skb = prm.response; | |
252 | ||
253 | if (!skb) | |
254 | return -EIO; | |
255 | ||
256 | buflen = skb->len; | |
257 | ||
258 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
259 | if (skb->data[buflen - 1] == '\n') | |
260 | buflen--; | |
261 | ||
262 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
263 | ret = count; | |
264 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
265 | ret = -EIO; | |
266 | else { | |
267 | /* We know we have enough space allocated for this; we allocated | |
268 | it ourselves */ | |
269 | skb->data[buflen] = 0; | |
270 | ||
271 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
272 | skb->data); | |
273 | ret = -EIO; | |
274 | } | |
275 | kfree_skb(skb); | |
276 | ||
277 | return ret; | |
278 | } | |
279 | ||
87ebb186 DW |
280 | static char *next_string(struct sk_buff *skb) |
281 | { | |
282 | int i = 0; | |
283 | char *this = skb->data; | |
284 | ||
285 | while (i < skb->len) { | |
286 | if (this[i] == '\n') { | |
287 | this[i] = 0; | |
288 | skb_pull(skb, i); | |
289 | return this; | |
290 | } | |
291 | } | |
292 | return NULL; | |
293 | } | |
294 | ||
295 | /* | |
296 | * Status packet has fields separated by \n, starting with a version number | |
297 | * for the information therein. Fields are.... | |
298 | * | |
299 | * packet version | |
300 | * TxBitRate (version >= 1) | |
301 | * RxBitRate (version >= 1) | |
302 | * State (version >= 1) | |
303 | */ | |
304 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
305 | { | |
306 | char *str, *end; | |
307 | int ver, rate_up, rate_down, state; | |
308 | ||
309 | if (!card->atmdev[port]) | |
310 | return -ENODEV; | |
311 | ||
312 | str = next_string(skb); | |
313 | if (!str) | |
314 | return -EIO; | |
315 | ||
316 | ver = simple_strtol(str, NULL, 10); | |
317 | if (ver < 1) { | |
318 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
319 | ver); | |
320 | return -EIO; | |
321 | } | |
322 | ||
323 | str = next_string(skb); | |
324 | rate_up = simple_strtol(str, &end, 10); | |
325 | if (*end) | |
326 | return -EIO; | |
327 | ||
328 | str = next_string(skb); | |
329 | rate_down = simple_strtol(str, &end, 10); | |
330 | if (*end) | |
331 | return -EIO; | |
332 | ||
333 | str = next_string(skb); | |
334 | if (!strcmp(str, "Showtime")) | |
335 | state = ATM_PHY_SIG_FOUND; | |
1e615df6 DW |
336 | else { |
337 | state = ATM_PHY_SIG_LOST; | |
338 | release_vccs(card->atmdev[port]); | |
339 | } | |
87ebb186 DW |
340 | |
341 | card->atmdev[port]->link_rate = rate_down; | |
342 | card->atmdev[port]->signal = state; | |
343 | ||
344 | dev_info(&card->dev->dev, "ATM state: '%s', %d/%d kb/s up/down.\n", | |
345 | str, rate_up/1000, rate_down/1000); | |
346 | return 0; | |
347 | } | |
348 | ||
01e2ffac DW |
349 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
350 | { | |
351 | struct solos_param *prm; | |
352 | unsigned long flags; | |
353 | int cmdpid; | |
354 | int found = 0; | |
355 | ||
356 | if (skb->len < 7) | |
357 | return 0; | |
358 | ||
359 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
360 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
361 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
362 | skb->data[6] != '\n') | |
363 | return 0; | |
364 | ||
365 | cmdpid = simple_strtol(&skb->data[1], NULL, 10); | |
366 | ||
367 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
368 | list_for_each_entry(prm, &card->param_queue, list) { | |
369 | if (prm->port == port && prm->pid == cmdpid) { | |
370 | prm->response = skb; | |
371 | skb_pull(skb, 7); | |
372 | wake_up(&card->param_wq); | |
373 | found = 1; | |
374 | break; | |
375 | } | |
376 | } | |
377 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
378 | return found; | |
379 | } | |
380 | ||
9c54004e DW |
381 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
382 | char *buf) | |
383 | { | |
384 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
385 | struct solos_card *card = atmdev->dev_data; | |
386 | struct sk_buff *skb; | |
387 | ||
388 | spin_lock(&card->cli_queue_lock); | |
389 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
390 | spin_unlock(&card->cli_queue_lock); | |
391 | if(skb == NULL) | |
392 | return sprintf(buf, "No data.\n"); | |
393 | ||
394 | memcpy(buf, skb->data, skb->len); | |
395 | dev_dbg(&card->dev->dev, "len: %d\n", skb->len); | |
396 | ||
397 | kfree_skb(skb); | |
398 | return skb->len; | |
399 | } | |
400 | ||
401 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
402 | { | |
403 | struct sk_buff *skb; | |
404 | struct pkt_hdr *header; | |
405 | ||
406 | // dev_dbg(&card->dev->dev, "size: %d\n", size); | |
407 | ||
408 | if (size > (BUF_SIZE - sizeof(*header))) { | |
409 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
410 | return 0; | |
411 | } | |
412 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
413 | if (!skb) { | |
414 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
415 | return 0; | |
416 | } | |
417 | ||
418 | header = (void *)skb_put(skb, sizeof(*header)); | |
419 | ||
420 | header->size = cpu_to_le16(size); | |
421 | header->vpi = cpu_to_le16(0); | |
422 | header->vci = cpu_to_le16(0); | |
423 | header->type = cpu_to_le16(PKT_COMMAND); | |
424 | ||
425 | memcpy(skb_put(skb, size), buf, size); | |
426 | ||
427 | fpga_queue(card, dev, skb, NULL); | |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
432 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
433 | const char *buf, size_t count) | |
434 | { | |
435 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
436 | struct solos_card *card = atmdev->dev_data; | |
437 | int err; | |
438 | ||
439 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
440 | ||
441 | return err?:count; | |
442 | } | |
443 | ||
444 | static DEVICE_ATTR(console, 0644, console_show, console_store); | |
d057f0a4 DW |
445 | |
446 | ||
447 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
448 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
449 | ||
450 | #include "solos-attrlist.c" | |
451 | ||
452 | #undef SOLOS_ATTR_RO | |
453 | #undef SOLOS_ATTR_RW | |
454 | ||
455 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
456 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
457 | ||
458 | static struct attribute *solos_attrs[] = { | |
459 | #include "solos-attrlist.c" | |
460 | NULL | |
461 | }; | |
462 | ||
463 | static struct attribute_group solos_attr_group = { | |
464 | .attrs = solos_attrs, | |
465 | .name = "parameters", | |
466 | }; | |
9c54004e | 467 | |
fa755b9f DW |
468 | static int flash_upgrade(struct solos_card *card, int chip) |
469 | { | |
470 | const struct firmware *fw; | |
471 | const char *fw_name; | |
7c4015bd SF |
472 | uint32_t data32 = 0; |
473 | int blocksize = 0; | |
474 | int numblocks = 0; | |
fa755b9f DW |
475 | int offset; |
476 | ||
477 | if (chip == 0) { | |
478 | fw_name = "solos-FPGA.bin"; | |
7c4015bd SF |
479 | blocksize = FPGA_BLOCK; |
480 | } else { | |
fa755b9f | 481 | fw_name = "solos-Firmware.bin"; |
7c4015bd SF |
482 | blocksize = SOLOS_BLOCK; |
483 | } | |
fa755b9f DW |
484 | |
485 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
486 | return -ENOENT; | |
487 | ||
488 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
489 | ||
490 | numblocks = fw->size / blocksize; | |
491 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
492 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
493 | ||
7c4015bd SF |
494 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
495 | iowrite32(1, card->config_regs + FPGA_MODE); | |
496 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
7c4015bd | 497 | |
fa755b9f DW |
498 | /* Set mode to Chip Erase */ |
499 | dev_info(&card->dev->dev, "Set FPGA Flash mode to %s Chip Erase\n", | |
500 | chip?"Solos":"FPGA"); | |
501 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); | |
7c4015bd | 502 | |
7c4015bd | 503 | |
fa755b9f DW |
504 | iowrite32(1, card->config_regs + WRITE_FLASH); |
505 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
506 | ||
507 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
508 | int i; | |
509 | ||
510 | /* Clear write flag */ | |
7c4015bd | 511 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 512 | |
fa755b9f DW |
513 | /* Set mode to Block Write */ |
514 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
515 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
516 | ||
517 | /* Copy block to buffer, swapping each 16 bits */ | |
518 | for(i = 0; i < blocksize; i += 4) { | |
519 | uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
520 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 521 | } |
fa755b9f DW |
522 | |
523 | /* Specify block number and then trigger flash write */ | |
524 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
525 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
526 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
527 | } |
528 | ||
fa755b9f DW |
529 | release_firmware(fw); |
530 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
531 | iowrite32(0, card->config_regs + FPGA_MODE); | |
532 | iowrite32(0, card->config_regs + FLASH_MODE); | |
533 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
534 | return 0; | |
7c4015bd SF |
535 | } |
536 | ||
9c54004e DW |
537 | static irqreturn_t solos_irq(int irq, void *dev_id) |
538 | { | |
539 | struct solos_card *card = dev_id; | |
540 | int handled = 1; | |
541 | ||
542 | //ACK IRQ | |
543 | iowrite32(0, card->config_regs + IRQ_CLEAR); | |
544 | //Disable IRQs from FPGA | |
545 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
546 | ||
fa755b9f | 547 | if (card->atmdev[0]) |
9c54004e | 548 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
549 | else |
550 | wake_up(&card->fw_wq); | |
9c54004e DW |
551 | |
552 | //Enable IRQs from FPGA | |
553 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); | |
554 | return IRQ_RETVAL(handled); | |
555 | } | |
556 | ||
557 | void solos_bh(unsigned long card_arg) | |
558 | { | |
559 | struct solos_card *card = (void *)card_arg; | |
560 | int port; | |
561 | uint32_t card_flags; | |
562 | uint32_t tx_mask; | |
563 | uint32_t rx_done = 0; | |
564 | ||
565 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
566 | ||
567 | /* The TX bits are set if the channel is busy; clear if not. We want to | |
568 | invoke fpga_tx() unless _all_ the bits for active channels are set */ | |
569 | tx_mask = (1 << card->nr_ports) - 1; | |
570 | if ((card_flags & tx_mask) != tx_mask) | |
571 | fpga_tx(card); | |
572 | ||
573 | for (port = 0; port < card->nr_ports; port++) { | |
574 | if (card_flags & (0x10 << port)) { | |
575 | struct pkt_hdr header; | |
576 | struct sk_buff *skb; | |
577 | struct atm_vcc *vcc; | |
578 | int size; | |
579 | ||
580 | rx_done |= 0x10 << port; | |
581 | ||
582 | memcpy_fromio(&header, RX_BUF(card, port), sizeof(header)); | |
583 | ||
584 | size = le16_to_cpu(header.size); | |
585 | ||
87ebb186 | 586 | skb = alloc_skb(size + 1, GFP_ATOMIC); |
9c54004e DW |
587 | if (!skb) { |
588 | if (net_ratelimit()) | |
589 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
590 | continue; | |
591 | } | |
592 | ||
593 | memcpy_fromio(skb_put(skb, size), | |
594 | RX_BUF(card, port) + sizeof(header), | |
595 | size); | |
596 | ||
597 | if (atmdebug) { | |
598 | dev_info(&card->dev->dev, "Received: device %d\n", port); | |
599 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", | |
600 | size, le16_to_cpu(header.vpi), | |
601 | le16_to_cpu(header.vci)); | |
602 | print_buffer(skb); | |
603 | } | |
604 | ||
605 | switch (le16_to_cpu(header.type)) { | |
606 | case PKT_DATA: | |
607 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header.vpi), | |
608 | le16_to_cpu(header.vci)); | |
609 | if (!vcc) { | |
610 | if (net_ratelimit()) | |
611 | dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n", | |
612 | le16_to_cpu(header.vci), le16_to_cpu(header.vpi), | |
613 | port); | |
614 | continue; | |
615 | } | |
616 | atm_charge(vcc, skb->truesize); | |
617 | vcc->push(vcc, skb); | |
618 | atomic_inc(&vcc->stats->rx); | |
619 | break; | |
620 | ||
87ebb186 DW |
621 | case PKT_STATUS: |
622 | process_status(card, port, skb); | |
623 | dev_kfree_skb(skb); | |
624 | break; | |
625 | ||
9c54004e DW |
626 | case PKT_COMMAND: |
627 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
628 | if (process_command(card, port, skb)) |
629 | break; | |
9c54004e DW |
630 | spin_lock(&card->cli_queue_lock); |
631 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
632 | if (net_ratelimit()) | |
633 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
634 | port); | |
635 | } else | |
636 | skb_queue_tail(&card->cli_queue[port], skb); | |
637 | spin_unlock(&card->cli_queue_lock); | |
638 | break; | |
639 | } | |
640 | } | |
641 | } | |
642 | if (rx_done) | |
643 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
644 | ||
645 | return; | |
646 | } | |
647 | ||
648 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
649 | { | |
650 | struct hlist_head *head; | |
651 | struct atm_vcc *vcc = NULL; | |
652 | struct hlist_node *node; | |
653 | struct sock *s; | |
654 | ||
655 | read_lock(&vcc_sklist_lock); | |
656 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
657 | sk_for_each(s, node, head) { | |
658 | vcc = atm_sk(s); | |
659 | if (vcc->dev == dev && vcc->vci == vci && | |
660 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE) | |
661 | goto out; | |
662 | } | |
663 | vcc = NULL; | |
664 | out: | |
665 | read_unlock(&vcc_sklist_lock); | |
666 | return vcc; | |
667 | } | |
668 | ||
669 | static int list_vccs(int vci) | |
670 | { | |
671 | struct hlist_head *head; | |
672 | struct atm_vcc *vcc; | |
673 | struct hlist_node *node; | |
674 | struct sock *s; | |
675 | int num_found = 0; | |
676 | int i; | |
677 | ||
678 | read_lock(&vcc_sklist_lock); | |
679 | if (vci != 0){ | |
680 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
681 | sk_for_each(s, node, head) { | |
682 | num_found ++; | |
683 | vcc = atm_sk(s); | |
684 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
685 | vcc->dev->number, | |
686 | vcc->vpi, | |
687 | vcc->vci); | |
688 | } | |
689 | } else { | |
1e615df6 | 690 | for(i = 0; i < VCC_HTABLE_SIZE; i++){ |
9c54004e DW |
691 | head = &vcc_hash[i]; |
692 | sk_for_each(s, node, head) { | |
693 | num_found ++; | |
694 | vcc = atm_sk(s); | |
695 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
696 | vcc->dev->number, | |
697 | vcc->vpi, | |
698 | vcc->vci); | |
699 | } | |
700 | } | |
701 | } | |
702 | read_unlock(&vcc_sklist_lock); | |
703 | return num_found; | |
704 | } | |
705 | ||
1e615df6 DW |
706 | static void release_vccs(struct atm_dev *dev) |
707 | { | |
708 | int i; | |
709 | ||
710 | write_lock_irq(&vcc_sklist_lock); | |
711 | for (i = 0; i < VCC_HTABLE_SIZE; i++) { | |
712 | struct hlist_head *head = &vcc_hash[i]; | |
713 | struct hlist_node *node, *tmp; | |
714 | struct sock *s; | |
715 | struct atm_vcc *vcc; | |
716 | ||
717 | sk_for_each_safe(s, node, tmp, head) { | |
718 | vcc = atm_sk(s); | |
719 | if (vcc->dev == dev) { | |
720 | vcc_release_async(vcc, -EPIPE); | |
721 | sk_del_node_init(s); | |
722 | } | |
723 | } | |
724 | } | |
725 | write_unlock_irq(&vcc_sklist_lock); | |
726 | } | |
727 | ||
9c54004e DW |
728 | |
729 | static int popen(struct atm_vcc *vcc) | |
730 | { | |
731 | struct solos_card *card = vcc->dev->dev_data; | |
732 | struct sk_buff *skb; | |
733 | struct pkt_hdr *header; | |
734 | ||
b28a4b9a DW |
735 | if (vcc->qos.aal != ATM_AAL5) { |
736 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
737 | vcc->qos.aal); | |
738 | return -EINVAL; | |
739 | } | |
740 | ||
9c54004e DW |
741 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
742 | if (!skb && net_ratelimit()) { | |
743 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
744 | return -ENOMEM; | |
745 | } | |
746 | header = (void *)skb_put(skb, sizeof(*header)); | |
747 | ||
b76811af | 748 | header->size = cpu_to_le16(0); |
9c54004e DW |
749 | header->vpi = cpu_to_le16(vcc->vpi); |
750 | header->vci = cpu_to_le16(vcc->vci); | |
751 | header->type = cpu_to_le16(PKT_POPEN); | |
752 | ||
753 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
754 | ||
755 | // dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev)); | |
756 | set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci | |
757 | set_bit(ATM_VF_READY, &vcc->flags); | |
758 | list_vccs(0); | |
759 | ||
9c54004e DW |
760 | |
761 | return 0; | |
762 | } | |
763 | ||
764 | static void pclose(struct atm_vcc *vcc) | |
765 | { | |
766 | struct solos_card *card = vcc->dev->dev_data; | |
767 | struct sk_buff *skb; | |
768 | struct pkt_hdr *header; | |
769 | ||
770 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
771 | if (!skb) { | |
772 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
773 | return; | |
774 | } | |
775 | header = (void *)skb_put(skb, sizeof(*header)); | |
776 | ||
b76811af | 777 | header->size = cpu_to_le16(0); |
9c54004e DW |
778 | header->vpi = cpu_to_le16(vcc->vpi); |
779 | header->vci = cpu_to_le16(vcc->vci); | |
780 | header->type = cpu_to_le16(PKT_PCLOSE); | |
781 | ||
782 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
783 | ||
784 | // dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev)); | |
9c54004e DW |
785 | |
786 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
787 | clear_bit(ATM_VF_READY, &vcc->flags); | |
788 | ||
789 | return; | |
790 | } | |
791 | ||
792 | static int print_buffer(struct sk_buff *buf) | |
793 | { | |
794 | int len,i; | |
795 | char msg[500]; | |
796 | char item[10]; | |
797 | ||
798 | len = buf->len; | |
799 | for (i = 0; i < len; i++){ | |
800 | if(i % 8 == 0) | |
801 | sprintf(msg, "%02X: ", i); | |
802 | ||
803 | sprintf(item,"%02X ",*(buf->data + i)); | |
804 | strcat(msg, item); | |
805 | if(i % 8 == 7) { | |
806 | sprintf(item, "\n"); | |
807 | strcat(msg, item); | |
808 | printk(KERN_DEBUG "%s", msg); | |
809 | } | |
810 | } | |
811 | if (i % 8 != 0) { | |
812 | sprintf(item, "\n"); | |
813 | strcat(msg, item); | |
814 | printk(KERN_DEBUG "%s", msg); | |
815 | } | |
816 | printk(KERN_DEBUG "\n"); | |
817 | ||
818 | return 0; | |
819 | } | |
820 | ||
821 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
822 | struct atm_vcc *vcc) | |
823 | { | |
824 | int old_len; | |
825 | ||
826 | *(void **)skb->cb = vcc; | |
827 | ||
828 | spin_lock(&card->tx_queue_lock); | |
829 | old_len = skb_queue_len(&card->tx_queue[port]); | |
830 | skb_queue_tail(&card->tx_queue[port], skb); | |
831 | spin_unlock(&card->tx_queue_lock); | |
832 | ||
833 | /* If TX might need to be started, do so */ | |
834 | if (!old_len) | |
835 | fpga_tx(card); | |
836 | } | |
837 | ||
838 | static int fpga_tx(struct solos_card *card) | |
839 | { | |
840 | uint32_t tx_pending; | |
841 | uint32_t tx_started = 0; | |
842 | struct sk_buff *skb; | |
843 | struct atm_vcc *vcc; | |
844 | unsigned char port; | |
845 | unsigned long flags; | |
846 | ||
847 | spin_lock_irqsave(&card->tx_lock, flags); | |
848 | ||
849 | tx_pending = ioread32(card->config_regs + FLAGS_ADDR); | |
850 | ||
851 | dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending); | |
852 | ||
853 | for (port = 0; port < card->nr_ports; port++) { | |
854 | if (!(tx_pending & (1 << port))) { | |
855 | ||
856 | spin_lock(&card->tx_queue_lock); | |
857 | skb = skb_dequeue(&card->tx_queue[port]); | |
858 | spin_unlock(&card->tx_queue_lock); | |
859 | ||
860 | if (!skb) | |
861 | continue; | |
862 | ||
863 | if (atmdebug) { | |
864 | dev_info(&card->dev->dev, "Transmitted: port %d\n", | |
865 | port); | |
866 | print_buffer(skb); | |
867 | } | |
868 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
869 | ||
870 | vcc = *(void **)skb->cb; | |
871 | ||
872 | if (vcc) { | |
873 | atomic_inc(&vcc->stats->tx); | |
874 | solos_pop(vcc, skb); | |
875 | } else | |
876 | dev_kfree_skb_irq(skb); | |
877 | ||
878 | tx_started |= 1 << port; //Set TX full flag | |
879 | } | |
880 | } | |
881 | if (tx_started) | |
882 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
883 | ||
884 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
885 | return 0; | |
886 | } | |
887 | ||
888 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
889 | { | |
890 | struct solos_card *card = vcc->dev->dev_data; | |
891 | struct sk_buff *skb2 = NULL; | |
892 | struct pkt_hdr *header; | |
b76811af | 893 | int pktlen; |
9c54004e DW |
894 | |
895 | //dev_dbg(&card->dev->dev, "psend called.\n"); | |
896 | //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci); | |
897 | ||
898 | if (debug) { | |
899 | skb2 = atm_alloc_charge(vcc, skb->len, GFP_ATOMIC); | |
900 | if (skb2) { | |
901 | memcpy(skb2->data, skb->data, skb->len); | |
902 | skb_put(skb2, skb->len); | |
903 | vcc->push(vcc, skb2); | |
904 | atomic_inc(&vcc->stats->rx); | |
905 | } | |
906 | atomic_inc(&vcc->stats->tx); | |
907 | solos_pop(vcc, skb); | |
908 | return 0; | |
909 | } | |
910 | ||
b76811af DW |
911 | pktlen = skb->len; |
912 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
913 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
914 | solos_pop(vcc, skb); | |
915 | return 0; | |
916 | } | |
917 | ||
918 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
919 | int expand_by = 0; | |
920 | int ret; | |
921 | ||
922 | if (skb_headroom(skb) < sizeof(*header)) | |
923 | expand_by = sizeof(*header) - skb_headroom(skb); | |
924 | ||
925 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
926 | if (ret) { | |
4306cad6 | 927 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
928 | solos_pop(vcc, skb); |
929 | return ret; | |
930 | } | |
931 | } | |
932 | ||
933 | header = (void *)skb_push(skb, sizeof(*header)); | |
934 | ||
b76811af DW |
935 | /* This does _not_ include the size of the header */ |
936 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
937 | header->vpi = cpu_to_le16(vcc->vpi); |
938 | header->vci = cpu_to_le16(vcc->vci); | |
939 | header->type = cpu_to_le16(PKT_DATA); | |
940 | ||
941 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
942 | ||
943 | return 0; | |
944 | } | |
945 | ||
946 | static struct atmdev_ops fpga_ops = { | |
947 | .open = popen, | |
948 | .close = pclose, | |
949 | .ioctl = NULL, | |
950 | .getsockopt = NULL, | |
951 | .setsockopt = NULL, | |
952 | .send = psend, | |
953 | .send_oam = NULL, | |
954 | .phy_put = NULL, | |
955 | .phy_get = NULL, | |
956 | .change_qos = NULL, | |
957 | .proc_read = NULL, | |
958 | .owner = THIS_MODULE | |
959 | }; | |
960 | ||
961 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
962 | { | |
963 | int err, i; | |
964 | uint16_t fpga_ver; | |
965 | uint8_t major_ver, minor_ver; | |
966 | uint32_t data32; | |
967 | struct solos_card *card; | |
968 | ||
969 | if (debug) | |
970 | return 0; | |
971 | ||
972 | card = kzalloc(sizeof(*card), GFP_KERNEL); | |
973 | if (!card) | |
974 | return -ENOMEM; | |
975 | ||
976 | card->dev = dev; | |
fa755b9f | 977 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 978 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
979 | |
980 | err = pci_enable_device(dev); | |
981 | if (err) { | |
982 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
983 | goto out; | |
984 | } | |
985 | ||
986 | err = pci_request_regions(dev, "solos"); | |
987 | if (err) { | |
988 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
989 | goto out; | |
990 | } | |
991 | ||
992 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
993 | if (!card->config_regs) { | |
994 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
995 | goto out_release_regions; | |
996 | } | |
997 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
998 | if (!card->buffers) { | |
999 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
1000 | goto out_unmap_config; | |
1001 | } | |
1002 | ||
1003 | // for(i=0;i<64 ;i+=4){ | |
1004 | // data32=ioread32(card->buffers + i); | |
1005 | // dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32); | |
1006 | // } | |
1007 | ||
1008 | //Fill Config Mem with zeros | |
1009 | for(i = 0; i < 128; i += 4) | |
1010 | iowrite32(0, card->config_regs + i); | |
1011 | ||
1012 | //Set RX empty flags | |
1013 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1014 | ||
1015 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1016 | fpga_ver = (data32 & 0x0000FFFF); | |
1017 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1018 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
1019 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", | |
1020 | major_ver, minor_ver, fpga_ver); | |
1021 | ||
1022 | card->nr_ports = 2; /* FIXME: Detect daughterboard */ | |
1023 | ||
9c54004e | 1024 | pci_set_drvdata(dev, card); |
fa755b9f | 1025 | |
9c54004e DW |
1026 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1027 | spin_lock_init(&card->tx_lock); | |
1028 | spin_lock_init(&card->tx_queue_lock); | |
1029 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1030 | spin_lock_init(&card->param_queue_lock); |
1031 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1032 | |
9c54004e DW |
1033 | /* |
1034 | // Set Loopback mode | |
1035 | data32 = 0x00010000; | |
1036 | iowrite32(data32,card->config_regs + FLAGS_ADDR); | |
1037 | */ | |
1038 | /* | |
1039 | // Fill Buffers with zeros | |
1040 | for (i = 0; i < BUF_SIZE * 8; i += 4) | |
1041 | iowrite32(0, card->buffers + i); | |
1042 | */ | |
1043 | /* | |
1044 | for(i = 0; i < (BUF_SIZE * 1); i += 4) | |
1045 | iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE)); | |
1046 | for(i = 0; i < (BUF_SIZE * 1); i += 4) | |
1047 | iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE)); | |
1048 | ||
1049 | // Read Config Memory | |
1050 | printk(KERN_DEBUG "Reading Config MEM\n"); | |
1051 | i = 0; | |
1052 | for(i = 0; i < 16; i++) { | |
1053 | data32=ioread32(card->buffers + i*(BUF_SIZE/2)); | |
1054 | printk(KERN_ALERT "Addr: %lX Data: %08lX\n", | |
1055 | (unsigned long)(addr_start + i*(BUF_SIZE/2)), | |
1056 | (unsigned long)data32); | |
1057 | } | |
1058 | */ | |
1059 | //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq); | |
1060 | err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED, | |
1061 | "solos-pci", card); | |
fa755b9f | 1062 | if (err) { |
9c54004e | 1063 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1064 | goto out_unmap_both; |
1065 | } | |
9c54004e DW |
1066 | |
1067 | // Enable IRQs | |
1068 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); | |
1069 | ||
fa755b9f DW |
1070 | if (fpga_upgrade) |
1071 | flash_upgrade(card, 0); | |
1072 | ||
1073 | if (firmware_upgrade) | |
1074 | flash_upgrade(card, 1); | |
1075 | ||
1076 | err = atm_init(card); | |
1077 | if (err) | |
1078 | goto out_free_irq; | |
1079 | ||
9c54004e DW |
1080 | return 0; |
1081 | ||
fa755b9f DW |
1082 | out_free_irq: |
1083 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1084 | free_irq(dev->irq, card); | |
1085 | tasklet_kill(&card->tlet); | |
1086 | ||
9c54004e | 1087 | out_unmap_both: |
fa755b9f | 1088 | pci_set_drvdata(dev, NULL); |
9c54004e DW |
1089 | pci_iounmap(dev, card->config_regs); |
1090 | out_unmap_config: | |
1091 | pci_iounmap(dev, card->buffers); | |
1092 | out_release_regions: | |
1093 | pci_release_regions(dev); | |
1094 | out: | |
1095 | return err; | |
1096 | } | |
1097 | ||
1098 | static int atm_init(struct solos_card *card) | |
1099 | { | |
1100 | int i; | |
1101 | ||
9c54004e | 1102 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1103 | struct sk_buff *skb; |
1104 | struct pkt_hdr *header; | |
1105 | ||
9c54004e DW |
1106 | skb_queue_head_init(&card->tx_queue[i]); |
1107 | skb_queue_head_init(&card->cli_queue[i]); | |
1108 | ||
1109 | card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); | |
1110 | if (!card->atmdev[i]) { | |
1111 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1112 | atm_remove(card); | |
1113 | return -ENODEV; | |
1114 | } | |
1115 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1116 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1117 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1118 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1119 | |
1120 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1121 | ||
1122 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1123 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1124 | card->atmdev[i]->dev_data = card; | |
1125 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
87ebb186 DW |
1126 | card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN; |
1127 | ||
1128 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
1129 | if (!skb) { | |
1130 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1131 | continue; | |
1132 | } | |
1133 | ||
1134 | header = (void *)skb_put(skb, sizeof(*header)); | |
1135 | ||
1136 | header->size = cpu_to_le16(0); | |
1137 | header->vpi = cpu_to_le16(0); | |
1138 | header->vci = cpu_to_le16(0); | |
1139 | header->type = cpu_to_le16(PKT_STATUS); | |
1140 | ||
1141 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1142 | } |
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static void atm_remove(struct solos_card *card) | |
1147 | { | |
1148 | int i; | |
1149 | ||
1150 | for (i = 0; i < card->nr_ports; i++) { | |
1151 | if (card->atmdev[i]) { | |
1152 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); | |
1153 | atm_dev_deregister(card->atmdev[i]); | |
1154 | } | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | static void fpga_remove(struct pci_dev *dev) | |
1159 | { | |
1160 | struct solos_card *card = pci_get_drvdata(dev); | |
1161 | ||
1162 | if (debug) | |
1163 | return; | |
1164 | ||
1165 | atm_remove(card); | |
1166 | ||
1167 | dev_vdbg(&dev->dev, "Freeing IRQ\n"); | |
1168 | // Disable IRQs from FPGA | |
1169 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1170 | free_irq(dev->irq, card); | |
1171 | tasklet_kill(&card->tlet); | |
1172 | ||
1173 | // iowrite32(0x01,pciregs); | |
1174 | dev_vdbg(&dev->dev, "Unmapping PCI resource\n"); | |
1175 | pci_iounmap(dev, card->buffers); | |
1176 | pci_iounmap(dev, card->config_regs); | |
1177 | ||
1178 | dev_vdbg(&dev->dev, "Releasing PCI Region\n"); | |
1179 | pci_release_regions(dev); | |
1180 | pci_disable_device(dev); | |
1181 | ||
1182 | pci_set_drvdata(dev, NULL); | |
1183 | kfree(card); | |
1184 | // dev_dbg(&card->dev->dev, "fpga_remove\n"); | |
1185 | return; | |
1186 | } | |
1187 | ||
1188 | static struct pci_device_id fpga_pci_tbl[] __devinitdata = { | |
1189 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
1190 | { 0, } | |
1191 | }; | |
1192 | ||
1193 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1194 | ||
1195 | static struct pci_driver fpga_driver = { | |
1196 | .name = "solos", | |
1197 | .id_table = fpga_pci_tbl, | |
1198 | .probe = fpga_probe, | |
1199 | .remove = fpga_remove, | |
1200 | }; | |
1201 | ||
1202 | ||
1203 | static int __init solos_pci_init(void) | |
1204 | { | |
1205 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); | |
1206 | return pci_register_driver(&fpga_driver); | |
1207 | } | |
1208 | ||
1209 | static void __exit solos_pci_exit(void) | |
1210 | { | |
1211 | pci_unregister_driver(&fpga_driver); | |
1212 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1213 | } | |
1214 | ||
1215 | module_init(solos_pci_init); | |
1216 | module_exit(solos_pci_exit); |