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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 | |
90937231 DW |
58 | #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) |
59 | #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) | |
9c54004e DW |
60 | |
61 | #define DATA_RAM_SIZE 32768 | |
62 | #define BUF_SIZE 4096 | |
7c4015bd SF |
63 | #define FPGA_PAGE 528 /* FPGA flash page size*/ |
64 | #define SOLOS_PAGE 512 /* Solos flash page size*/ | |
65 | #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/ | |
66 | #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/ | |
9c54004e DW |
67 | |
68 | #define RX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2) | |
69 | #define TX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2 + BUF_SIZE) | |
70 | ||
71 | static int debug = 0; | |
72 | static int atmdebug = 0; | |
7c4015bd SF |
73 | static int firmware_upgrade = 0; |
74 | static int fpga_upgrade = 0; | |
9c54004e DW |
75 | |
76 | struct pkt_hdr { | |
77 | __le16 size; | |
78 | __le16 vpi; | |
79 | __le16 vci; | |
80 | __le16 type; | |
81 | }; | |
82 | ||
90937231 DW |
83 | struct solos_skb_cb { |
84 | struct atm_vcc *vcc; | |
85 | uint32_t dma_addr; | |
86 | }; | |
87 | ||
88 | ||
89 | #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) | |
90 | ||
9c54004e DW |
91 | #define PKT_DATA 0 |
92 | #define PKT_COMMAND 1 | |
93 | #define PKT_POPEN 3 | |
94 | #define PKT_PCLOSE 4 | |
87ebb186 | 95 | #define PKT_STATUS 5 |
9c54004e DW |
96 | |
97 | struct solos_card { | |
98 | void __iomem *config_regs; | |
99 | void __iomem *buffers; | |
100 | int nr_ports; | |
101 | struct pci_dev *dev; | |
102 | struct atm_dev *atmdev[4]; | |
103 | struct tasklet_struct tlet; | |
104 | spinlock_t tx_lock; | |
105 | spinlock_t tx_queue_lock; | |
106 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
107 | spinlock_t param_queue_lock; |
108 | struct list_head param_queue; | |
9c54004e DW |
109 | struct sk_buff_head tx_queue[4]; |
110 | struct sk_buff_head cli_queue[4]; | |
90937231 DW |
111 | struct sk_buff *tx_skb[4]; |
112 | struct sk_buff *rx_skb[4]; | |
01e2ffac | 113 | wait_queue_head_t param_wq; |
fa755b9f | 114 | wait_queue_head_t fw_wq; |
90937231 | 115 | int using_dma; |
9c54004e DW |
116 | }; |
117 | ||
01e2ffac DW |
118 | |
119 | struct solos_param { | |
120 | struct list_head list; | |
121 | pid_t pid; | |
122 | int port; | |
123 | struct sk_buff *response; | |
124 | wait_queue_head_t wq; | |
125 | }; | |
126 | ||
9c54004e DW |
127 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) |
128 | ||
129 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
130 | MODULE_DESCRIPTION("Solos PCI driver"); | |
131 | MODULE_VERSION(VERSION); | |
132 | MODULE_LICENSE("GPL"); | |
133 | MODULE_PARM_DESC(debug, "Enable Loopback"); | |
134 | MODULE_PARM_DESC(atmdebug, "Print ATM data"); | |
7c4015bd SF |
135 | MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); |
136 | MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); | |
9c54004e | 137 | module_param(debug, int, 0444); |
4306cad6 | 138 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
139 | module_param(firmware_upgrade, int, 0444); |
140 | module_param(fpga_upgrade, int, 0444); | |
9c54004e | 141 | |
9c54004e DW |
142 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, |
143 | struct atm_vcc *vcc); | |
144 | static int fpga_tx(struct solos_card *); | |
145 | static irqreturn_t solos_irq(int irq, void *dev_id); | |
146 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
147 | static int list_vccs(int vci); | |
1e615df6 | 148 | static void release_vccs(struct atm_dev *dev); |
9c54004e DW |
149 | static int atm_init(struct solos_card *); |
150 | static void atm_remove(struct solos_card *); | |
151 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
152 | static void solos_bh(unsigned long); | |
153 | static int print_buffer(struct sk_buff *buf); | |
154 | ||
155 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
156 | { | |
157 | if (vcc->pop) | |
158 | vcc->pop(vcc, skb); | |
159 | else | |
160 | dev_kfree_skb_any(skb); | |
161 | } | |
162 | ||
01e2ffac DW |
163 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
164 | char *buf) | |
165 | { | |
166 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
167 | struct solos_card *card = atmdev->dev_data; | |
168 | struct solos_param prm; | |
169 | struct sk_buff *skb; | |
170 | struct pkt_hdr *header; | |
171 | int buflen; | |
172 | ||
173 | buflen = strlen(attr->attr.name) + 10; | |
174 | ||
3456b221 | 175 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
176 | if (!skb) { |
177 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
178 | return -ENOMEM; | |
179 | } | |
180 | ||
181 | header = (void *)skb_put(skb, sizeof(*header)); | |
182 | ||
183 | buflen = snprintf((void *)&header[1], buflen - 1, | |
184 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
185 | skb_put(skb, buflen); | |
186 | ||
187 | header->size = cpu_to_le16(buflen); | |
188 | header->vpi = cpu_to_le16(0); | |
189 | header->vci = cpu_to_le16(0); | |
190 | header->type = cpu_to_le16(PKT_COMMAND); | |
191 | ||
192 | prm.pid = current->pid; | |
193 | prm.response = NULL; | |
194 | prm.port = SOLOS_CHAN(atmdev); | |
195 | ||
196 | spin_lock_irq(&card->param_queue_lock); | |
197 | list_add(&prm.list, &card->param_queue); | |
198 | spin_unlock_irq(&card->param_queue_lock); | |
199 | ||
200 | fpga_queue(card, prm.port, skb, NULL); | |
201 | ||
202 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
203 | ||
204 | spin_lock_irq(&card->param_queue_lock); | |
205 | list_del(&prm.list); | |
206 | spin_unlock_irq(&card->param_queue_lock); | |
207 | ||
208 | if (!prm.response) | |
209 | return -EIO; | |
210 | ||
211 | buflen = prm.response->len; | |
212 | memcpy(buf, prm.response->data, buflen); | |
213 | kfree_skb(prm.response); | |
214 | ||
215 | return buflen; | |
216 | } | |
217 | ||
218 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
219 | const char *buf, size_t count) | |
220 | { | |
221 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
222 | struct solos_card *card = atmdev->dev_data; | |
223 | struct solos_param prm; | |
224 | struct sk_buff *skb; | |
225 | struct pkt_hdr *header; | |
226 | int buflen; | |
227 | ssize_t ret; | |
228 | ||
229 | buflen = strlen(attr->attr.name) + 11 + count; | |
230 | ||
3456b221 | 231 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
232 | if (!skb) { |
233 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
234 | return -ENOMEM; | |
235 | } | |
236 | ||
237 | header = (void *)skb_put(skb, sizeof(*header)); | |
238 | ||
239 | buflen = snprintf((void *)&header[1], buflen - 1, | |
240 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
241 | ||
242 | skb_put(skb, buflen); | |
243 | header->size = cpu_to_le16(buflen); | |
244 | header->vpi = cpu_to_le16(0); | |
245 | header->vci = cpu_to_le16(0); | |
246 | header->type = cpu_to_le16(PKT_COMMAND); | |
247 | ||
248 | prm.pid = current->pid; | |
249 | prm.response = NULL; | |
250 | prm.port = SOLOS_CHAN(atmdev); | |
251 | ||
252 | spin_lock_irq(&card->param_queue_lock); | |
253 | list_add(&prm.list, &card->param_queue); | |
254 | spin_unlock_irq(&card->param_queue_lock); | |
255 | ||
256 | fpga_queue(card, prm.port, skb, NULL); | |
257 | ||
258 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
259 | ||
260 | spin_lock_irq(&card->param_queue_lock); | |
261 | list_del(&prm.list); | |
262 | spin_unlock_irq(&card->param_queue_lock); | |
263 | ||
264 | skb = prm.response; | |
265 | ||
266 | if (!skb) | |
267 | return -EIO; | |
268 | ||
269 | buflen = skb->len; | |
270 | ||
271 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
272 | if (skb->data[buflen - 1] == '\n') | |
273 | buflen--; | |
274 | ||
275 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
276 | ret = count; | |
277 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
278 | ret = -EIO; | |
279 | else { | |
280 | /* We know we have enough space allocated for this; we allocated | |
281 | it ourselves */ | |
282 | skb->data[buflen] = 0; | |
283 | ||
284 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
285 | skb->data); | |
286 | ret = -EIO; | |
287 | } | |
288 | kfree_skb(skb); | |
289 | ||
290 | return ret; | |
291 | } | |
292 | ||
87ebb186 DW |
293 | static char *next_string(struct sk_buff *skb) |
294 | { | |
295 | int i = 0; | |
296 | char *this = skb->data; | |
297 | ||
298 | while (i < skb->len) { | |
299 | if (this[i] == '\n') { | |
300 | this[i] = 0; | |
301 | skb_pull(skb, i); | |
302 | return this; | |
303 | } | |
304 | } | |
305 | return NULL; | |
306 | } | |
307 | ||
308 | /* | |
309 | * Status packet has fields separated by \n, starting with a version number | |
310 | * for the information therein. Fields are.... | |
311 | * | |
312 | * packet version | |
313 | * TxBitRate (version >= 1) | |
314 | * RxBitRate (version >= 1) | |
315 | * State (version >= 1) | |
316 | */ | |
317 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
318 | { | |
af780656 DW |
319 | char *str, *end, *state_str; |
320 | int ver, rate_up, rate_down, state, snr, attn; | |
87ebb186 DW |
321 | |
322 | if (!card->atmdev[port]) | |
323 | return -ENODEV; | |
324 | ||
325 | str = next_string(skb); | |
326 | if (!str) | |
327 | return -EIO; | |
328 | ||
329 | ver = simple_strtol(str, NULL, 10); | |
330 | if (ver < 1) { | |
331 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
332 | ver); | |
333 | return -EIO; | |
334 | } | |
335 | ||
336 | str = next_string(skb); | |
337 | rate_up = simple_strtol(str, &end, 10); | |
338 | if (*end) | |
339 | return -EIO; | |
340 | ||
341 | str = next_string(skb); | |
342 | rate_down = simple_strtol(str, &end, 10); | |
343 | if (*end) | |
344 | return -EIO; | |
345 | ||
af780656 DW |
346 | state_str = next_string(skb); |
347 | if (!strcmp(state_str, "Showtime")) | |
87ebb186 | 348 | state = ATM_PHY_SIG_FOUND; |
1e615df6 DW |
349 | else { |
350 | state = ATM_PHY_SIG_LOST; | |
351 | release_vccs(card->atmdev[port]); | |
352 | } | |
87ebb186 | 353 | |
af780656 DW |
354 | str = next_string(skb); |
355 | snr = simple_strtol(str, &end, 10); | |
356 | if (*end) | |
357 | return -EIO; | |
358 | ||
359 | str = next_string(skb); | |
360 | attn = simple_strtol(str, &end, 10); | |
361 | if (*end) | |
362 | return -EIO; | |
363 | ||
364 | if (state == ATM_PHY_SIG_LOST && !rate_up && !rate_down) | |
365 | dev_info(&card->dev->dev, "Port %d ATM state: %s\n", | |
366 | port, state_str); | |
367 | else | |
368 | dev_info(&card->dev->dev, "Port %d ATM state: %s (%d/%d kb/s, SNR %ddB, Attn %ddB)\n", | |
369 | port, state_str, rate_up/1000, rate_down/1000, | |
370 | snr, attn); | |
371 | ||
87ebb186 DW |
372 | card->atmdev[port]->link_rate = rate_down; |
373 | card->atmdev[port]->signal = state; | |
374 | ||
87ebb186 DW |
375 | return 0; |
376 | } | |
377 | ||
01e2ffac DW |
378 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
379 | { | |
380 | struct solos_param *prm; | |
381 | unsigned long flags; | |
382 | int cmdpid; | |
383 | int found = 0; | |
384 | ||
385 | if (skb->len < 7) | |
386 | return 0; | |
387 | ||
388 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
389 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
390 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
391 | skb->data[6] != '\n') | |
392 | return 0; | |
393 | ||
394 | cmdpid = simple_strtol(&skb->data[1], NULL, 10); | |
395 | ||
396 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
397 | list_for_each_entry(prm, &card->param_queue, list) { | |
398 | if (prm->port == port && prm->pid == cmdpid) { | |
399 | prm->response = skb; | |
400 | skb_pull(skb, 7); | |
401 | wake_up(&card->param_wq); | |
402 | found = 1; | |
403 | break; | |
404 | } | |
405 | } | |
406 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
407 | return found; | |
408 | } | |
409 | ||
9c54004e DW |
410 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
411 | char *buf) | |
412 | { | |
413 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
414 | struct solos_card *card = atmdev->dev_data; | |
415 | struct sk_buff *skb; | |
416 | ||
417 | spin_lock(&card->cli_queue_lock); | |
418 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
419 | spin_unlock(&card->cli_queue_lock); | |
420 | if(skb == NULL) | |
421 | return sprintf(buf, "No data.\n"); | |
422 | ||
423 | memcpy(buf, skb->data, skb->len); | |
424 | dev_dbg(&card->dev->dev, "len: %d\n", skb->len); | |
425 | ||
426 | kfree_skb(skb); | |
427 | return skb->len; | |
428 | } | |
429 | ||
430 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
431 | { | |
432 | struct sk_buff *skb; | |
433 | struct pkt_hdr *header; | |
434 | ||
435 | // dev_dbg(&card->dev->dev, "size: %d\n", size); | |
436 | ||
437 | if (size > (BUF_SIZE - sizeof(*header))) { | |
438 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
439 | return 0; | |
440 | } | |
441 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
442 | if (!skb) { | |
443 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | header = (void *)skb_put(skb, sizeof(*header)); | |
448 | ||
449 | header->size = cpu_to_le16(size); | |
450 | header->vpi = cpu_to_le16(0); | |
451 | header->vci = cpu_to_le16(0); | |
452 | header->type = cpu_to_le16(PKT_COMMAND); | |
453 | ||
454 | memcpy(skb_put(skb, size), buf, size); | |
455 | ||
456 | fpga_queue(card, dev, skb, NULL); | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
462 | const char *buf, size_t count) | |
463 | { | |
464 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
465 | struct solos_card *card = atmdev->dev_data; | |
466 | int err; | |
467 | ||
468 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
469 | ||
470 | return err?:count; | |
471 | } | |
472 | ||
473 | static DEVICE_ATTR(console, 0644, console_show, console_store); | |
d057f0a4 DW |
474 | |
475 | ||
476 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
477 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
478 | ||
479 | #include "solos-attrlist.c" | |
480 | ||
481 | #undef SOLOS_ATTR_RO | |
482 | #undef SOLOS_ATTR_RW | |
483 | ||
484 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
485 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
486 | ||
487 | static struct attribute *solos_attrs[] = { | |
488 | #include "solos-attrlist.c" | |
489 | NULL | |
490 | }; | |
491 | ||
492 | static struct attribute_group solos_attr_group = { | |
493 | .attrs = solos_attrs, | |
494 | .name = "parameters", | |
495 | }; | |
9c54004e | 496 | |
fa755b9f DW |
497 | static int flash_upgrade(struct solos_card *card, int chip) |
498 | { | |
499 | const struct firmware *fw; | |
500 | const char *fw_name; | |
7c4015bd SF |
501 | uint32_t data32 = 0; |
502 | int blocksize = 0; | |
503 | int numblocks = 0; | |
fa755b9f DW |
504 | int offset; |
505 | ||
506 | if (chip == 0) { | |
507 | fw_name = "solos-FPGA.bin"; | |
7c4015bd SF |
508 | blocksize = FPGA_BLOCK; |
509 | } else { | |
fa755b9f | 510 | fw_name = "solos-Firmware.bin"; |
7c4015bd SF |
511 | blocksize = SOLOS_BLOCK; |
512 | } | |
fa755b9f DW |
513 | |
514 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
515 | return -ENOENT; | |
516 | ||
517 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
518 | ||
519 | numblocks = fw->size / blocksize; | |
520 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
521 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
522 | ||
7c4015bd SF |
523 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
524 | iowrite32(1, card->config_regs + FPGA_MODE); | |
525 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
7c4015bd | 526 | |
fa755b9f DW |
527 | /* Set mode to Chip Erase */ |
528 | dev_info(&card->dev->dev, "Set FPGA Flash mode to %s Chip Erase\n", | |
529 | chip?"Solos":"FPGA"); | |
530 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); | |
7c4015bd | 531 | |
7c4015bd | 532 | |
fa755b9f DW |
533 | iowrite32(1, card->config_regs + WRITE_FLASH); |
534 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
535 | ||
536 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
537 | int i; | |
538 | ||
539 | /* Clear write flag */ | |
7c4015bd | 540 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 541 | |
fa755b9f DW |
542 | /* Set mode to Block Write */ |
543 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
544 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
545 | ||
546 | /* Copy block to buffer, swapping each 16 bits */ | |
547 | for(i = 0; i < blocksize; i += 4) { | |
548 | uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
549 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 550 | } |
fa755b9f DW |
551 | |
552 | /* Specify block number and then trigger flash write */ | |
553 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
554 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
555 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
556 | } |
557 | ||
fa755b9f DW |
558 | release_firmware(fw); |
559 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
560 | iowrite32(0, card->config_regs + FPGA_MODE); | |
561 | iowrite32(0, card->config_regs + FLASH_MODE); | |
562 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
563 | return 0; | |
7c4015bd SF |
564 | } |
565 | ||
9c54004e DW |
566 | static irqreturn_t solos_irq(int irq, void *dev_id) |
567 | { | |
568 | struct solos_card *card = dev_id; | |
569 | int handled = 1; | |
570 | ||
571 | //ACK IRQ | |
572 | iowrite32(0, card->config_regs + IRQ_CLEAR); | |
573 | //Disable IRQs from FPGA | |
574 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
575 | ||
fa755b9f | 576 | if (card->atmdev[0]) |
9c54004e | 577 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
578 | else |
579 | wake_up(&card->fw_wq); | |
9c54004e DW |
580 | |
581 | //Enable IRQs from FPGA | |
582 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); | |
583 | return IRQ_RETVAL(handled); | |
584 | } | |
585 | ||
586 | void solos_bh(unsigned long card_arg) | |
587 | { | |
588 | struct solos_card *card = (void *)card_arg; | |
589 | int port; | |
590 | uint32_t card_flags; | |
591 | uint32_t tx_mask; | |
592 | uint32_t rx_done = 0; | |
593 | ||
594 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
595 | ||
596 | /* The TX bits are set if the channel is busy; clear if not. We want to | |
597 | invoke fpga_tx() unless _all_ the bits for active channels are set */ | |
598 | tx_mask = (1 << card->nr_ports) - 1; | |
599 | if ((card_flags & tx_mask) != tx_mask) | |
600 | fpga_tx(card); | |
601 | ||
602 | for (port = 0; port < card->nr_ports; port++) { | |
603 | if (card_flags & (0x10 << port)) { | |
90937231 | 604 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
605 | struct sk_buff *skb; |
606 | struct atm_vcc *vcc; | |
607 | int size; | |
608 | ||
90937231 DW |
609 | if (card->using_dma) { |
610 | skb = card->rx_skb[port]; | |
611 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, skb->len, | |
612 | PCI_DMA_FROMDEVICE); | |
613 | ||
614 | card->rx_skb[port] = alloc_skb(2048, GFP_ATOMIC); | |
615 | if (card->rx_skb[port]) { | |
616 | SKB_CB(card->rx_skb[port])->dma_addr = | |
617 | pci_map_single(card->dev, skb->data, skb->len, | |
618 | PCI_DMA_FROMDEVICE); | |
619 | iowrite32(SKB_CB(card->rx_skb[port])->dma_addr, | |
620 | card->config_regs + RX_DMA_ADDR(port)); | |
621 | } | |
622 | header = (void *)skb->data; | |
623 | size = le16_to_cpu(header->size); | |
624 | skb_put(skb, size + sizeof(*header)); | |
625 | skb_pull(skb, sizeof(*header)); | |
626 | } else { | |
627 | header = &_hdr; | |
9c54004e | 628 | |
90937231 | 629 | rx_done |= 0x10 << port; |
9c54004e | 630 | |
90937231 | 631 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 632 | |
90937231 | 633 | size = le16_to_cpu(header->size); |
9c54004e | 634 | |
90937231 DW |
635 | skb = alloc_skb(size + 1, GFP_ATOMIC); |
636 | if (!skb) { | |
637 | if (net_ratelimit()) | |
638 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
639 | continue; | |
640 | } | |
9c54004e | 641 | |
90937231 DW |
642 | memcpy_fromio(skb_put(skb, size), |
643 | RX_BUF(card, port) + sizeof(*header), | |
644 | size); | |
645 | } | |
9c54004e DW |
646 | if (atmdebug) { |
647 | dev_info(&card->dev->dev, "Received: device %d\n", port); | |
648 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", | |
90937231 DW |
649 | size, le16_to_cpu(header->vpi), |
650 | le16_to_cpu(header->vci)); | |
9c54004e DW |
651 | print_buffer(skb); |
652 | } | |
653 | ||
90937231 | 654 | switch (le16_to_cpu(header->type)) { |
9c54004e | 655 | case PKT_DATA: |
90937231 DW |
656 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
657 | le16_to_cpu(header->vci)); | |
9c54004e DW |
658 | if (!vcc) { |
659 | if (net_ratelimit()) | |
660 | dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n", | |
90937231 | 661 | le16_to_cpu(header->vci), le16_to_cpu(header->vpi), |
9c54004e DW |
662 | port); |
663 | continue; | |
664 | } | |
665 | atm_charge(vcc, skb->truesize); | |
666 | vcc->push(vcc, skb); | |
667 | atomic_inc(&vcc->stats->rx); | |
668 | break; | |
669 | ||
87ebb186 DW |
670 | case PKT_STATUS: |
671 | process_status(card, port, skb); | |
672 | dev_kfree_skb(skb); | |
673 | break; | |
674 | ||
9c54004e DW |
675 | case PKT_COMMAND: |
676 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
677 | if (process_command(card, port, skb)) |
678 | break; | |
9c54004e DW |
679 | spin_lock(&card->cli_queue_lock); |
680 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
681 | if (net_ratelimit()) | |
682 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
683 | port); | |
684 | } else | |
685 | skb_queue_tail(&card->cli_queue[port], skb); | |
686 | spin_unlock(&card->cli_queue_lock); | |
687 | break; | |
688 | } | |
689 | } | |
690 | } | |
691 | if (rx_done) | |
692 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
693 | ||
694 | return; | |
695 | } | |
696 | ||
697 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
698 | { | |
699 | struct hlist_head *head; | |
700 | struct atm_vcc *vcc = NULL; | |
701 | struct hlist_node *node; | |
702 | struct sock *s; | |
703 | ||
704 | read_lock(&vcc_sklist_lock); | |
705 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
706 | sk_for_each(s, node, head) { | |
707 | vcc = atm_sk(s); | |
708 | if (vcc->dev == dev && vcc->vci == vci && | |
709 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE) | |
710 | goto out; | |
711 | } | |
712 | vcc = NULL; | |
713 | out: | |
714 | read_unlock(&vcc_sklist_lock); | |
715 | return vcc; | |
716 | } | |
717 | ||
718 | static int list_vccs(int vci) | |
719 | { | |
720 | struct hlist_head *head; | |
721 | struct atm_vcc *vcc; | |
722 | struct hlist_node *node; | |
723 | struct sock *s; | |
724 | int num_found = 0; | |
725 | int i; | |
726 | ||
727 | read_lock(&vcc_sklist_lock); | |
728 | if (vci != 0){ | |
729 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
730 | sk_for_each(s, node, head) { | |
731 | num_found ++; | |
732 | vcc = atm_sk(s); | |
733 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
734 | vcc->dev->number, | |
735 | vcc->vpi, | |
736 | vcc->vci); | |
737 | } | |
738 | } else { | |
1e615df6 | 739 | for(i = 0; i < VCC_HTABLE_SIZE; i++){ |
9c54004e DW |
740 | head = &vcc_hash[i]; |
741 | sk_for_each(s, node, head) { | |
742 | num_found ++; | |
743 | vcc = atm_sk(s); | |
744 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
745 | vcc->dev->number, | |
746 | vcc->vpi, | |
747 | vcc->vci); | |
748 | } | |
749 | } | |
750 | } | |
751 | read_unlock(&vcc_sklist_lock); | |
752 | return num_found; | |
753 | } | |
754 | ||
1e615df6 DW |
755 | static void release_vccs(struct atm_dev *dev) |
756 | { | |
757 | int i; | |
758 | ||
759 | write_lock_irq(&vcc_sklist_lock); | |
760 | for (i = 0; i < VCC_HTABLE_SIZE; i++) { | |
761 | struct hlist_head *head = &vcc_hash[i]; | |
762 | struct hlist_node *node, *tmp; | |
763 | struct sock *s; | |
764 | struct atm_vcc *vcc; | |
765 | ||
766 | sk_for_each_safe(s, node, tmp, head) { | |
767 | vcc = atm_sk(s); | |
768 | if (vcc->dev == dev) { | |
769 | vcc_release_async(vcc, -EPIPE); | |
770 | sk_del_node_init(s); | |
771 | } | |
772 | } | |
773 | } | |
774 | write_unlock_irq(&vcc_sklist_lock); | |
775 | } | |
776 | ||
9c54004e DW |
777 | |
778 | static int popen(struct atm_vcc *vcc) | |
779 | { | |
780 | struct solos_card *card = vcc->dev->dev_data; | |
781 | struct sk_buff *skb; | |
782 | struct pkt_hdr *header; | |
783 | ||
b28a4b9a DW |
784 | if (vcc->qos.aal != ATM_AAL5) { |
785 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
786 | vcc->qos.aal); | |
787 | return -EINVAL; | |
788 | } | |
789 | ||
9c54004e DW |
790 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
791 | if (!skb && net_ratelimit()) { | |
792 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
793 | return -ENOMEM; | |
794 | } | |
795 | header = (void *)skb_put(skb, sizeof(*header)); | |
796 | ||
b76811af | 797 | header->size = cpu_to_le16(0); |
9c54004e DW |
798 | header->vpi = cpu_to_le16(vcc->vpi); |
799 | header->vci = cpu_to_le16(vcc->vci); | |
800 | header->type = cpu_to_le16(PKT_POPEN); | |
801 | ||
802 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
803 | ||
804 | // dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev)); | |
805 | set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci | |
806 | set_bit(ATM_VF_READY, &vcc->flags); | |
807 | list_vccs(0); | |
808 | ||
9c54004e DW |
809 | |
810 | return 0; | |
811 | } | |
812 | ||
813 | static void pclose(struct atm_vcc *vcc) | |
814 | { | |
815 | struct solos_card *card = vcc->dev->dev_data; | |
816 | struct sk_buff *skb; | |
817 | struct pkt_hdr *header; | |
818 | ||
819 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
820 | if (!skb) { | |
821 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
822 | return; | |
823 | } | |
824 | header = (void *)skb_put(skb, sizeof(*header)); | |
825 | ||
b76811af | 826 | header->size = cpu_to_le16(0); |
9c54004e DW |
827 | header->vpi = cpu_to_le16(vcc->vpi); |
828 | header->vci = cpu_to_le16(vcc->vci); | |
829 | header->type = cpu_to_le16(PKT_PCLOSE); | |
830 | ||
831 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
832 | ||
833 | // 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 |
834 | |
835 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
836 | clear_bit(ATM_VF_READY, &vcc->flags); | |
837 | ||
838 | return; | |
839 | } | |
840 | ||
841 | static int print_buffer(struct sk_buff *buf) | |
842 | { | |
843 | int len,i; | |
844 | char msg[500]; | |
845 | char item[10]; | |
846 | ||
847 | len = buf->len; | |
848 | for (i = 0; i < len; i++){ | |
849 | if(i % 8 == 0) | |
850 | sprintf(msg, "%02X: ", i); | |
851 | ||
852 | sprintf(item,"%02X ",*(buf->data + i)); | |
853 | strcat(msg, item); | |
854 | if(i % 8 == 7) { | |
855 | sprintf(item, "\n"); | |
856 | strcat(msg, item); | |
857 | printk(KERN_DEBUG "%s", msg); | |
858 | } | |
859 | } | |
860 | if (i % 8 != 0) { | |
861 | sprintf(item, "\n"); | |
862 | strcat(msg, item); | |
863 | printk(KERN_DEBUG "%s", msg); | |
864 | } | |
865 | printk(KERN_DEBUG "\n"); | |
866 | ||
867 | return 0; | |
868 | } | |
869 | ||
870 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
871 | struct atm_vcc *vcc) | |
872 | { | |
873 | int old_len; | |
874 | ||
90937231 | 875 | SKB_CB(skb)->vcc = vcc; |
9c54004e DW |
876 | |
877 | spin_lock(&card->tx_queue_lock); | |
878 | old_len = skb_queue_len(&card->tx_queue[port]); | |
879 | skb_queue_tail(&card->tx_queue[port], skb); | |
880 | spin_unlock(&card->tx_queue_lock); | |
881 | ||
882 | /* If TX might need to be started, do so */ | |
883 | if (!old_len) | |
884 | fpga_tx(card); | |
885 | } | |
886 | ||
887 | static int fpga_tx(struct solos_card *card) | |
888 | { | |
889 | uint32_t tx_pending; | |
890 | uint32_t tx_started = 0; | |
891 | struct sk_buff *skb; | |
892 | struct atm_vcc *vcc; | |
893 | unsigned char port; | |
894 | unsigned long flags; | |
895 | ||
896 | spin_lock_irqsave(&card->tx_lock, flags); | |
897 | ||
898 | tx_pending = ioread32(card->config_regs + FLAGS_ADDR); | |
899 | ||
900 | dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending); | |
901 | ||
902 | for (port = 0; port < card->nr_ports; port++) { | |
af780656 | 903 | if (card->atmdev[port] && !(tx_pending & (1 << port))) { |
9c54004e DW |
904 | |
905 | spin_lock(&card->tx_queue_lock); | |
906 | skb = skb_dequeue(&card->tx_queue[port]); | |
907 | spin_unlock(&card->tx_queue_lock); | |
908 | ||
909 | if (!skb) | |
910 | continue; | |
911 | ||
912 | if (atmdebug) { | |
913 | dev_info(&card->dev->dev, "Transmitted: port %d\n", | |
914 | port); | |
915 | print_buffer(skb); | |
916 | } | |
90937231 DW |
917 | if (card->using_dma) { |
918 | if (card->tx_skb[port]) { | |
919 | struct sk_buff *oldskb = card->tx_skb[port]; | |
9c54004e | 920 | |
90937231 DW |
921 | pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, |
922 | oldskb->len, PCI_DMA_TODEVICE); | |
9c54004e | 923 | |
90937231 | 924 | vcc = SKB_CB(oldskb)->vcc; |
9c54004e | 925 | |
90937231 DW |
926 | if (vcc) { |
927 | atomic_inc(&vcc->stats->tx); | |
928 | solos_pop(vcc, oldskb); | |
929 | } else | |
930 | dev_kfree_skb_irq(oldskb); | |
931 | } | |
932 | ||
933 | SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data, | |
934 | skb->len, PCI_DMA_TODEVICE); | |
935 | iowrite32(SKB_CB(skb)->dma_addr, card->config_regs + TX_DMA_ADDR(port)); | |
936 | } else { | |
937 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
938 | tx_started |= 1 << port; //Set TX full flag | |
939 | ||
940 | vcc = SKB_CB(skb)->vcc; | |
941 | ||
942 | if (vcc) { | |
943 | atomic_inc(&vcc->stats->tx); | |
944 | solos_pop(vcc, skb); | |
945 | } else | |
946 | dev_kfree_skb_irq(skb); | |
947 | } | |
9c54004e DW |
948 | } |
949 | } | |
950 | if (tx_started) | |
951 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
952 | ||
953 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
954 | return 0; | |
955 | } | |
956 | ||
957 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
958 | { | |
959 | struct solos_card *card = vcc->dev->dev_data; | |
960 | struct sk_buff *skb2 = NULL; | |
961 | struct pkt_hdr *header; | |
b76811af | 962 | int pktlen; |
9c54004e DW |
963 | |
964 | //dev_dbg(&card->dev->dev, "psend called.\n"); | |
965 | //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci); | |
966 | ||
967 | if (debug) { | |
968 | skb2 = atm_alloc_charge(vcc, skb->len, GFP_ATOMIC); | |
969 | if (skb2) { | |
970 | memcpy(skb2->data, skb->data, skb->len); | |
971 | skb_put(skb2, skb->len); | |
972 | vcc->push(vcc, skb2); | |
973 | atomic_inc(&vcc->stats->rx); | |
974 | } | |
975 | atomic_inc(&vcc->stats->tx); | |
976 | solos_pop(vcc, skb); | |
977 | return 0; | |
978 | } | |
979 | ||
b76811af DW |
980 | pktlen = skb->len; |
981 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
982 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
983 | solos_pop(vcc, skb); | |
984 | return 0; | |
985 | } | |
986 | ||
987 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
988 | int expand_by = 0; | |
989 | int ret; | |
990 | ||
991 | if (skb_headroom(skb) < sizeof(*header)) | |
992 | expand_by = sizeof(*header) - skb_headroom(skb); | |
993 | ||
994 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
995 | if (ret) { | |
4306cad6 | 996 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
997 | solos_pop(vcc, skb); |
998 | return ret; | |
999 | } | |
1000 | } | |
1001 | ||
1002 | header = (void *)skb_push(skb, sizeof(*header)); | |
1003 | ||
b76811af DW |
1004 | /* This does _not_ include the size of the header */ |
1005 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1006 | header->vpi = cpu_to_le16(vcc->vpi); |
1007 | header->vci = cpu_to_le16(vcc->vci); | |
1008 | header->type = cpu_to_le16(PKT_DATA); | |
1009 | ||
1010 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | static struct atmdev_ops fpga_ops = { | |
1016 | .open = popen, | |
1017 | .close = pclose, | |
1018 | .ioctl = NULL, | |
1019 | .getsockopt = NULL, | |
1020 | .setsockopt = NULL, | |
1021 | .send = psend, | |
1022 | .send_oam = NULL, | |
1023 | .phy_put = NULL, | |
1024 | .phy_get = NULL, | |
1025 | .change_qos = NULL, | |
1026 | .proc_read = NULL, | |
1027 | .owner = THIS_MODULE | |
1028 | }; | |
1029 | ||
1030 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1031 | { | |
1032 | int err, i; | |
1033 | uint16_t fpga_ver; | |
1034 | uint8_t major_ver, minor_ver; | |
1035 | uint32_t data32; | |
1036 | struct solos_card *card; | |
1037 | ||
1038 | if (debug) | |
1039 | return 0; | |
1040 | ||
1041 | card = kzalloc(sizeof(*card), GFP_KERNEL); | |
1042 | if (!card) | |
1043 | return -ENOMEM; | |
1044 | ||
1045 | card->dev = dev; | |
fa755b9f | 1046 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1047 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1048 | |
1049 | err = pci_enable_device(dev); | |
1050 | if (err) { | |
1051 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1052 | goto out; | |
1053 | } | |
1054 | ||
90937231 DW |
1055 | err = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
1056 | if (err) { | |
1057 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1058 | goto out; | |
1059 | } | |
1060 | ||
9c54004e DW |
1061 | err = pci_request_regions(dev, "solos"); |
1062 | if (err) { | |
1063 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1064 | goto out; | |
1065 | } | |
1066 | ||
1067 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1068 | if (!card->config_regs) { | |
1069 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
1070 | goto out_release_regions; | |
1071 | } | |
1072 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1073 | if (!card->buffers) { | |
1074 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
1075 | goto out_unmap_config; | |
1076 | } | |
1077 | ||
1078 | // for(i=0;i<64 ;i+=4){ | |
1079 | // data32=ioread32(card->buffers + i); | |
1080 | // dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32); | |
1081 | // } | |
1082 | ||
1083 | //Fill Config Mem with zeros | |
1084 | for(i = 0; i < 128; i += 4) | |
1085 | iowrite32(0, card->config_regs + i); | |
1086 | ||
1087 | //Set RX empty flags | |
1088 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1089 | ||
1090 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1091 | fpga_ver = (data32 & 0x0000FFFF); | |
1092 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1093 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
1094 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", | |
1095 | major_ver, minor_ver, fpga_ver); | |
1096 | ||
90937231 DW |
1097 | if (fpga_ver > 27) |
1098 | card->using_dma = 1; | |
1099 | ||
9c54004e DW |
1100 | card->nr_ports = 2; /* FIXME: Detect daughterboard */ |
1101 | ||
9c54004e | 1102 | pci_set_drvdata(dev, card); |
fa755b9f | 1103 | |
9c54004e DW |
1104 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1105 | spin_lock_init(&card->tx_lock); | |
1106 | spin_lock_init(&card->tx_queue_lock); | |
1107 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1108 | spin_lock_init(&card->param_queue_lock); |
1109 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1110 | |
9c54004e DW |
1111 | /* |
1112 | // Set Loopback mode | |
1113 | data32 = 0x00010000; | |
1114 | iowrite32(data32,card->config_regs + FLAGS_ADDR); | |
1115 | */ | |
1116 | /* | |
1117 | // Fill Buffers with zeros | |
1118 | for (i = 0; i < BUF_SIZE * 8; i += 4) | |
1119 | iowrite32(0, card->buffers + i); | |
1120 | */ | |
1121 | /* | |
1122 | for(i = 0; i < (BUF_SIZE * 1); i += 4) | |
1123 | iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE)); | |
1124 | for(i = 0; i < (BUF_SIZE * 1); i += 4) | |
1125 | iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE)); | |
1126 | ||
1127 | // Read Config Memory | |
1128 | printk(KERN_DEBUG "Reading Config MEM\n"); | |
1129 | i = 0; | |
1130 | for(i = 0; i < 16; i++) { | |
1131 | data32=ioread32(card->buffers + i*(BUF_SIZE/2)); | |
1132 | printk(KERN_ALERT "Addr: %lX Data: %08lX\n", | |
1133 | (unsigned long)(addr_start + i*(BUF_SIZE/2)), | |
1134 | (unsigned long)data32); | |
1135 | } | |
1136 | */ | |
1137 | //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq); | |
1138 | err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED, | |
1139 | "solos-pci", card); | |
fa755b9f | 1140 | if (err) { |
9c54004e | 1141 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1142 | goto out_unmap_both; |
1143 | } | |
9c54004e DW |
1144 | |
1145 | // Enable IRQs | |
1146 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); | |
1147 | ||
fa755b9f DW |
1148 | if (fpga_upgrade) |
1149 | flash_upgrade(card, 0); | |
1150 | ||
1151 | if (firmware_upgrade) | |
1152 | flash_upgrade(card, 1); | |
1153 | ||
1154 | err = atm_init(card); | |
1155 | if (err) | |
1156 | goto out_free_irq; | |
1157 | ||
9c54004e DW |
1158 | return 0; |
1159 | ||
fa755b9f DW |
1160 | out_free_irq: |
1161 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1162 | free_irq(dev->irq, card); | |
1163 | tasklet_kill(&card->tlet); | |
1164 | ||
9c54004e | 1165 | out_unmap_both: |
fa755b9f | 1166 | pci_set_drvdata(dev, NULL); |
9c54004e DW |
1167 | pci_iounmap(dev, card->config_regs); |
1168 | out_unmap_config: | |
1169 | pci_iounmap(dev, card->buffers); | |
1170 | out_release_regions: | |
1171 | pci_release_regions(dev); | |
1172 | out: | |
1173 | return err; | |
1174 | } | |
1175 | ||
1176 | static int atm_init(struct solos_card *card) | |
1177 | { | |
1178 | int i; | |
1179 | ||
9c54004e | 1180 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1181 | struct sk_buff *skb; |
1182 | struct pkt_hdr *header; | |
1183 | ||
9c54004e DW |
1184 | skb_queue_head_init(&card->tx_queue[i]); |
1185 | skb_queue_head_init(&card->cli_queue[i]); | |
1186 | ||
1187 | card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); | |
1188 | if (!card->atmdev[i]) { | |
1189 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1190 | atm_remove(card); | |
1191 | return -ENODEV; | |
1192 | } | |
1193 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1194 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1195 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1196 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1197 | |
1198 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1199 | ||
1200 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1201 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1202 | card->atmdev[i]->dev_data = card; | |
1203 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
87ebb186 DW |
1204 | card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN; |
1205 | ||
1206 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
1207 | if (!skb) { | |
1208 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1209 | continue; | |
1210 | } | |
1211 | ||
1212 | header = (void *)skb_put(skb, sizeof(*header)); | |
1213 | ||
1214 | header->size = cpu_to_le16(0); | |
1215 | header->vpi = cpu_to_le16(0); | |
1216 | header->vci = cpu_to_le16(0); | |
1217 | header->type = cpu_to_le16(PKT_STATUS); | |
1218 | ||
1219 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1220 | } |
1221 | return 0; | |
1222 | } | |
1223 | ||
1224 | static void atm_remove(struct solos_card *card) | |
1225 | { | |
1226 | int i; | |
1227 | ||
1228 | for (i = 0; i < card->nr_ports; i++) { | |
1229 | if (card->atmdev[i]) { | |
1230 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); | |
c0fe3026 DW |
1231 | |
1232 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e DW |
1233 | atm_dev_deregister(card->atmdev[i]); |
1234 | } | |
1235 | } | |
1236 | } | |
1237 | ||
1238 | static void fpga_remove(struct pci_dev *dev) | |
1239 | { | |
1240 | struct solos_card *card = pci_get_drvdata(dev); | |
1241 | ||
1242 | if (debug) | |
1243 | return; | |
1244 | ||
1245 | atm_remove(card); | |
1246 | ||
1247 | dev_vdbg(&dev->dev, "Freeing IRQ\n"); | |
1248 | // Disable IRQs from FPGA | |
1249 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1250 | free_irq(dev->irq, card); | |
1251 | tasklet_kill(&card->tlet); | |
1252 | ||
1253 | // iowrite32(0x01,pciregs); | |
1254 | dev_vdbg(&dev->dev, "Unmapping PCI resource\n"); | |
1255 | pci_iounmap(dev, card->buffers); | |
1256 | pci_iounmap(dev, card->config_regs); | |
1257 | ||
1258 | dev_vdbg(&dev->dev, "Releasing PCI Region\n"); | |
1259 | pci_release_regions(dev); | |
1260 | pci_disable_device(dev); | |
1261 | ||
1262 | pci_set_drvdata(dev, NULL); | |
1263 | kfree(card); | |
1264 | // dev_dbg(&card->dev->dev, "fpga_remove\n"); | |
1265 | return; | |
1266 | } | |
1267 | ||
1268 | static struct pci_device_id fpga_pci_tbl[] __devinitdata = { | |
1269 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
1270 | { 0, } | |
1271 | }; | |
1272 | ||
1273 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1274 | ||
1275 | static struct pci_driver fpga_driver = { | |
1276 | .name = "solos", | |
1277 | .id_table = fpga_pci_tbl, | |
1278 | .probe = fpga_probe, | |
1279 | .remove = fpga_remove, | |
1280 | }; | |
1281 | ||
1282 | ||
1283 | static int __init solos_pci_init(void) | |
1284 | { | |
1285 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); | |
1286 | return pci_register_driver(&fpga_driver); | |
1287 | } | |
1288 | ||
1289 | static void __exit solos_pci_exit(void) | |
1290 | { | |
1291 | pci_unregister_driver(&fpga_driver); | |
1292 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1293 | } | |
1294 | ||
1295 | module_init(solos_pci_init); | |
1296 | module_exit(solos_pci_exit); |