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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 | ||
eaf83e39 DW |
71 | #define RX_DMA_SIZE 2048 |
72 | ||
9c54004e | 73 | static int atmdebug = 0; |
7c4015bd SF |
74 | static int firmware_upgrade = 0; |
75 | static int fpga_upgrade = 0; | |
9c54004e DW |
76 | |
77 | struct pkt_hdr { | |
78 | __le16 size; | |
79 | __le16 vpi; | |
80 | __le16 vci; | |
81 | __le16 type; | |
82 | }; | |
83 | ||
90937231 DW |
84 | struct solos_skb_cb { |
85 | struct atm_vcc *vcc; | |
86 | uint32_t dma_addr; | |
87 | }; | |
88 | ||
89 | ||
90 | #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) | |
91 | ||
9c54004e DW |
92 | #define PKT_DATA 0 |
93 | #define PKT_COMMAND 1 | |
94 | #define PKT_POPEN 3 | |
95 | #define PKT_PCLOSE 4 | |
87ebb186 | 96 | #define PKT_STATUS 5 |
9c54004e DW |
97 | |
98 | struct solos_card { | |
99 | void __iomem *config_regs; | |
100 | void __iomem *buffers; | |
101 | int nr_ports; | |
f69e4170 | 102 | int tx_mask; |
9c54004e DW |
103 | struct pci_dev *dev; |
104 | struct atm_dev *atmdev[4]; | |
105 | struct tasklet_struct tlet; | |
106 | spinlock_t tx_lock; | |
107 | spinlock_t tx_queue_lock; | |
108 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
109 | spinlock_t param_queue_lock; |
110 | struct list_head param_queue; | |
9c54004e DW |
111 | struct sk_buff_head tx_queue[4]; |
112 | struct sk_buff_head cli_queue[4]; | |
90937231 DW |
113 | struct sk_buff *tx_skb[4]; |
114 | struct sk_buff *rx_skb[4]; | |
01e2ffac | 115 | wait_queue_head_t param_wq; |
fa755b9f | 116 | wait_queue_head_t fw_wq; |
90937231 | 117 | int using_dma; |
9c54004e DW |
118 | }; |
119 | ||
01e2ffac DW |
120 | |
121 | struct solos_param { | |
122 | struct list_head list; | |
123 | pid_t pid; | |
124 | int port; | |
125 | struct sk_buff *response; | |
01e2ffac DW |
126 | }; |
127 | ||
9c54004e DW |
128 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) |
129 | ||
130 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
131 | MODULE_DESCRIPTION("Solos PCI driver"); | |
132 | MODULE_VERSION(VERSION); | |
133 | MODULE_LICENSE("GPL"); | |
9c54004e | 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"); | |
4306cad6 | 137 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
138 | module_param(firmware_upgrade, int, 0444); |
139 | module_param(fpga_upgrade, int, 0444); | |
9c54004e | 140 | |
9c54004e DW |
141 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, |
142 | struct atm_vcc *vcc); | |
143 | static int fpga_tx(struct solos_card *); | |
144 | static irqreturn_t solos_irq(int irq, void *dev_id); | |
145 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
146 | static int list_vccs(int vci); | |
1e615df6 | 147 | static void release_vccs(struct atm_dev *dev); |
9c54004e DW |
148 | static int atm_init(struct solos_card *); |
149 | static void atm_remove(struct solos_card *); | |
150 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
151 | static void solos_bh(unsigned long); | |
152 | static int print_buffer(struct sk_buff *buf); | |
153 | ||
154 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
155 | { | |
156 | if (vcc->pop) | |
157 | vcc->pop(vcc, skb); | |
158 | else | |
159 | dev_kfree_skb_any(skb); | |
160 | } | |
161 | ||
01e2ffac DW |
162 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
163 | char *buf) | |
164 | { | |
165 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
166 | struct solos_card *card = atmdev->dev_data; | |
167 | struct solos_param prm; | |
168 | struct sk_buff *skb; | |
169 | struct pkt_hdr *header; | |
170 | int buflen; | |
171 | ||
172 | buflen = strlen(attr->attr.name) + 10; | |
173 | ||
3456b221 | 174 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
175 | if (!skb) { |
176 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
177 | return -ENOMEM; | |
178 | } | |
179 | ||
180 | header = (void *)skb_put(skb, sizeof(*header)); | |
181 | ||
182 | buflen = snprintf((void *)&header[1], buflen - 1, | |
183 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
184 | skb_put(skb, buflen); | |
185 | ||
186 | header->size = cpu_to_le16(buflen); | |
187 | header->vpi = cpu_to_le16(0); | |
188 | header->vci = cpu_to_le16(0); | |
189 | header->type = cpu_to_le16(PKT_COMMAND); | |
190 | ||
191 | prm.pid = current->pid; | |
192 | prm.response = NULL; | |
193 | prm.port = SOLOS_CHAN(atmdev); | |
194 | ||
195 | spin_lock_irq(&card->param_queue_lock); | |
196 | list_add(&prm.list, &card->param_queue); | |
197 | spin_unlock_irq(&card->param_queue_lock); | |
198 | ||
199 | fpga_queue(card, prm.port, skb, NULL); | |
200 | ||
201 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
202 | ||
203 | spin_lock_irq(&card->param_queue_lock); | |
204 | list_del(&prm.list); | |
205 | spin_unlock_irq(&card->param_queue_lock); | |
206 | ||
207 | if (!prm.response) | |
208 | return -EIO; | |
209 | ||
210 | buflen = prm.response->len; | |
211 | memcpy(buf, prm.response->data, buflen); | |
212 | kfree_skb(prm.response); | |
213 | ||
214 | return buflen; | |
215 | } | |
216 | ||
217 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
218 | const char *buf, size_t count) | |
219 | { | |
220 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
221 | struct solos_card *card = atmdev->dev_data; | |
222 | struct solos_param prm; | |
223 | struct sk_buff *skb; | |
224 | struct pkt_hdr *header; | |
225 | int buflen; | |
226 | ssize_t ret; | |
227 | ||
228 | buflen = strlen(attr->attr.name) + 11 + count; | |
229 | ||
3456b221 | 230 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
231 | if (!skb) { |
232 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
233 | return -ENOMEM; | |
234 | } | |
235 | ||
236 | header = (void *)skb_put(skb, sizeof(*header)); | |
237 | ||
238 | buflen = snprintf((void *)&header[1], buflen - 1, | |
239 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
240 | ||
241 | skb_put(skb, buflen); | |
242 | header->size = cpu_to_le16(buflen); | |
243 | header->vpi = cpu_to_le16(0); | |
244 | header->vci = cpu_to_le16(0); | |
245 | header->type = cpu_to_le16(PKT_COMMAND); | |
246 | ||
247 | prm.pid = current->pid; | |
248 | prm.response = NULL; | |
249 | prm.port = SOLOS_CHAN(atmdev); | |
250 | ||
251 | spin_lock_irq(&card->param_queue_lock); | |
252 | list_add(&prm.list, &card->param_queue); | |
253 | spin_unlock_irq(&card->param_queue_lock); | |
254 | ||
255 | fpga_queue(card, prm.port, skb, NULL); | |
256 | ||
257 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
258 | ||
259 | spin_lock_irq(&card->param_queue_lock); | |
260 | list_del(&prm.list); | |
261 | spin_unlock_irq(&card->param_queue_lock); | |
262 | ||
263 | skb = prm.response; | |
264 | ||
265 | if (!skb) | |
266 | return -EIO; | |
267 | ||
268 | buflen = skb->len; | |
269 | ||
270 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
271 | if (skb->data[buflen - 1] == '\n') | |
272 | buflen--; | |
273 | ||
274 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
275 | ret = count; | |
276 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
277 | ret = -EIO; | |
278 | else { | |
279 | /* We know we have enough space allocated for this; we allocated | |
280 | it ourselves */ | |
281 | skb->data[buflen] = 0; | |
282 | ||
283 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
284 | skb->data); | |
285 | ret = -EIO; | |
286 | } | |
287 | kfree_skb(skb); | |
288 | ||
289 | return ret; | |
290 | } | |
291 | ||
87ebb186 DW |
292 | static char *next_string(struct sk_buff *skb) |
293 | { | |
294 | int i = 0; | |
295 | char *this = skb->data; | |
296 | ||
297 | while (i < skb->len) { | |
298 | if (this[i] == '\n') { | |
299 | this[i] = 0; | |
300 | skb_pull(skb, i); | |
301 | return this; | |
302 | } | |
303 | } | |
304 | return NULL; | |
305 | } | |
306 | ||
307 | /* | |
308 | * Status packet has fields separated by \n, starting with a version number | |
309 | * for the information therein. Fields are.... | |
310 | * | |
311 | * packet version | |
312 | * TxBitRate (version >= 1) | |
313 | * RxBitRate (version >= 1) | |
314 | * State (version >= 1) | |
315 | */ | |
316 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
317 | { | |
af780656 DW |
318 | char *str, *end, *state_str; |
319 | int ver, rate_up, rate_down, state, snr, attn; | |
87ebb186 DW |
320 | |
321 | if (!card->atmdev[port]) | |
322 | return -ENODEV; | |
323 | ||
324 | str = next_string(skb); | |
325 | if (!str) | |
326 | return -EIO; | |
327 | ||
328 | ver = simple_strtol(str, NULL, 10); | |
329 | if (ver < 1) { | |
330 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
331 | ver); | |
332 | return -EIO; | |
333 | } | |
334 | ||
335 | str = next_string(skb); | |
336 | rate_up = simple_strtol(str, &end, 10); | |
337 | if (*end) | |
338 | return -EIO; | |
339 | ||
340 | str = next_string(skb); | |
341 | rate_down = simple_strtol(str, &end, 10); | |
342 | if (*end) | |
343 | return -EIO; | |
344 | ||
af780656 DW |
345 | state_str = next_string(skb); |
346 | if (!strcmp(state_str, "Showtime")) | |
87ebb186 | 347 | state = ATM_PHY_SIG_FOUND; |
1e615df6 DW |
348 | else { |
349 | state = ATM_PHY_SIG_LOST; | |
350 | release_vccs(card->atmdev[port]); | |
351 | } | |
87ebb186 | 352 | |
af780656 DW |
353 | str = next_string(skb); |
354 | snr = simple_strtol(str, &end, 10); | |
355 | if (*end) | |
356 | return -EIO; | |
357 | ||
358 | str = next_string(skb); | |
359 | attn = simple_strtol(str, &end, 10); | |
360 | if (*end) | |
361 | return -EIO; | |
362 | ||
363 | if (state == ATM_PHY_SIG_LOST && !rate_up && !rate_down) | |
364 | dev_info(&card->dev->dev, "Port %d ATM state: %s\n", | |
365 | port, state_str); | |
366 | else | |
367 | dev_info(&card->dev->dev, "Port %d ATM state: %s (%d/%d kb/s, SNR %ddB, Attn %ddB)\n", | |
368 | port, state_str, rate_up/1000, rate_down/1000, | |
369 | snr, attn); | |
370 | ||
87ebb186 DW |
371 | card->atmdev[port]->link_rate = rate_down; |
372 | card->atmdev[port]->signal = state; | |
373 | ||
87ebb186 DW |
374 | return 0; |
375 | } | |
376 | ||
01e2ffac DW |
377 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
378 | { | |
379 | struct solos_param *prm; | |
380 | unsigned long flags; | |
381 | int cmdpid; | |
382 | int found = 0; | |
383 | ||
384 | if (skb->len < 7) | |
385 | return 0; | |
386 | ||
387 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
388 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
389 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
390 | skb->data[6] != '\n') | |
391 | return 0; | |
392 | ||
393 | cmdpid = simple_strtol(&skb->data[1], NULL, 10); | |
394 | ||
395 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
396 | list_for_each_entry(prm, &card->param_queue, list) { | |
397 | if (prm->port == port && prm->pid == cmdpid) { | |
398 | prm->response = skb; | |
399 | skb_pull(skb, 7); | |
400 | wake_up(&card->param_wq); | |
401 | found = 1; | |
402 | break; | |
403 | } | |
404 | } | |
405 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
406 | return found; | |
407 | } | |
408 | ||
9c54004e DW |
409 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
410 | char *buf) | |
411 | { | |
412 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
413 | struct solos_card *card = atmdev->dev_data; | |
414 | struct sk_buff *skb; | |
415 | ||
416 | spin_lock(&card->cli_queue_lock); | |
417 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
418 | spin_unlock(&card->cli_queue_lock); | |
419 | if(skb == NULL) | |
420 | return sprintf(buf, "No data.\n"); | |
421 | ||
422 | memcpy(buf, skb->data, skb->len); | |
423 | dev_dbg(&card->dev->dev, "len: %d\n", skb->len); | |
424 | ||
425 | kfree_skb(skb); | |
426 | return skb->len; | |
427 | } | |
428 | ||
429 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
430 | { | |
431 | struct sk_buff *skb; | |
432 | struct pkt_hdr *header; | |
433 | ||
434 | // dev_dbg(&card->dev->dev, "size: %d\n", size); | |
435 | ||
436 | if (size > (BUF_SIZE - sizeof(*header))) { | |
437 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
438 | return 0; | |
439 | } | |
440 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
441 | if (!skb) { | |
442 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
443 | return 0; | |
444 | } | |
445 | ||
446 | header = (void *)skb_put(skb, sizeof(*header)); | |
447 | ||
448 | header->size = cpu_to_le16(size); | |
449 | header->vpi = cpu_to_le16(0); | |
450 | header->vci = cpu_to_le16(0); | |
451 | header->type = cpu_to_le16(PKT_COMMAND); | |
452 | ||
453 | memcpy(skb_put(skb, size), buf, size); | |
454 | ||
455 | fpga_queue(card, dev, skb, NULL); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
461 | const char *buf, size_t count) | |
462 | { | |
463 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
464 | struct solos_card *card = atmdev->dev_data; | |
465 | int err; | |
466 | ||
467 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
468 | ||
469 | return err?:count; | |
470 | } | |
471 | ||
472 | static DEVICE_ATTR(console, 0644, console_show, console_store); | |
d057f0a4 DW |
473 | |
474 | ||
475 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
476 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
477 | ||
478 | #include "solos-attrlist.c" | |
479 | ||
480 | #undef SOLOS_ATTR_RO | |
481 | #undef SOLOS_ATTR_RW | |
482 | ||
483 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
484 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
485 | ||
486 | static struct attribute *solos_attrs[] = { | |
487 | #include "solos-attrlist.c" | |
488 | NULL | |
489 | }; | |
490 | ||
491 | static struct attribute_group solos_attr_group = { | |
492 | .attrs = solos_attrs, | |
493 | .name = "parameters", | |
494 | }; | |
9c54004e | 495 | |
fa755b9f DW |
496 | static int flash_upgrade(struct solos_card *card, int chip) |
497 | { | |
498 | const struct firmware *fw; | |
499 | const char *fw_name; | |
7c4015bd SF |
500 | uint32_t data32 = 0; |
501 | int blocksize = 0; | |
502 | int numblocks = 0; | |
fa755b9f DW |
503 | int offset; |
504 | ||
505 | if (chip == 0) { | |
506 | fw_name = "solos-FPGA.bin"; | |
7c4015bd SF |
507 | blocksize = FPGA_BLOCK; |
508 | } else { | |
fa755b9f | 509 | fw_name = "solos-Firmware.bin"; |
7c4015bd SF |
510 | blocksize = SOLOS_BLOCK; |
511 | } | |
fa755b9f DW |
512 | |
513 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
514 | return -ENOENT; | |
515 | ||
516 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
517 | ||
518 | numblocks = fw->size / blocksize; | |
519 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
520 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
521 | ||
7c4015bd SF |
522 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
523 | iowrite32(1, card->config_regs + FPGA_MODE); | |
524 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
7c4015bd | 525 | |
fa755b9f DW |
526 | /* Set mode to Chip Erase */ |
527 | dev_info(&card->dev->dev, "Set FPGA Flash mode to %s Chip Erase\n", | |
528 | chip?"Solos":"FPGA"); | |
529 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); | |
7c4015bd | 530 | |
7c4015bd | 531 | |
fa755b9f DW |
532 | iowrite32(1, card->config_regs + WRITE_FLASH); |
533 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
534 | ||
535 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
536 | int i; | |
537 | ||
538 | /* Clear write flag */ | |
7c4015bd | 539 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 540 | |
fa755b9f DW |
541 | /* Set mode to Block Write */ |
542 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
543 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
544 | ||
545 | /* Copy block to buffer, swapping each 16 bits */ | |
546 | for(i = 0; i < blocksize; i += 4) { | |
547 | uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
548 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 549 | } |
fa755b9f DW |
550 | |
551 | /* Specify block number and then trigger flash write */ | |
552 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
553 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
554 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
555 | } |
556 | ||
fa755b9f DW |
557 | release_firmware(fw); |
558 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
559 | iowrite32(0, card->config_regs + FPGA_MODE); | |
560 | iowrite32(0, card->config_regs + FLASH_MODE); | |
561 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
562 | return 0; | |
7c4015bd SF |
563 | } |
564 | ||
9c54004e DW |
565 | static irqreturn_t solos_irq(int irq, void *dev_id) |
566 | { | |
567 | struct solos_card *card = dev_id; | |
568 | int handled = 1; | |
569 | ||
570 | //ACK IRQ | |
571 | iowrite32(0, card->config_regs + IRQ_CLEAR); | |
9c54004e | 572 | |
fa755b9f | 573 | if (card->atmdev[0]) |
9c54004e | 574 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
575 | else |
576 | wake_up(&card->fw_wq); | |
9c54004e | 577 | |
9c54004e DW |
578 | return IRQ_RETVAL(handled); |
579 | } | |
580 | ||
581 | void solos_bh(unsigned long card_arg) | |
582 | { | |
583 | struct solos_card *card = (void *)card_arg; | |
584 | int port; | |
585 | uint32_t card_flags; | |
9c54004e DW |
586 | uint32_t rx_done = 0; |
587 | ||
588 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
589 | ||
590 | /* The TX bits are set if the channel is busy; clear if not. We want to | |
591 | invoke fpga_tx() unless _all_ the bits for active channels are set */ | |
f69e4170 | 592 | if ((card_flags & card->tx_mask) != card->tx_mask) |
9c54004e DW |
593 | fpga_tx(card); |
594 | ||
595 | for (port = 0; port < card->nr_ports; port++) { | |
596 | if (card_flags & (0x10 << port)) { | |
90937231 | 597 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
598 | struct sk_buff *skb; |
599 | struct atm_vcc *vcc; | |
600 | int size; | |
601 | ||
90937231 DW |
602 | if (card->using_dma) { |
603 | skb = card->rx_skb[port]; | |
eaf83e39 DW |
604 | card->rx_skb[port] = NULL; |
605 | ||
606 | pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, | |
607 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
608 | ||
90937231 DW |
609 | header = (void *)skb->data; |
610 | size = le16_to_cpu(header->size); | |
611 | skb_put(skb, size + sizeof(*header)); | |
612 | skb_pull(skb, sizeof(*header)); | |
613 | } else { | |
614 | header = &_hdr; | |
9c54004e | 615 | |
90937231 | 616 | rx_done |= 0x10 << port; |
9c54004e | 617 | |
90937231 | 618 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 619 | |
90937231 | 620 | size = le16_to_cpu(header->size); |
9c54004e | 621 | |
90937231 DW |
622 | skb = alloc_skb(size + 1, GFP_ATOMIC); |
623 | if (!skb) { | |
624 | if (net_ratelimit()) | |
625 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
626 | continue; | |
627 | } | |
9c54004e | 628 | |
90937231 DW |
629 | memcpy_fromio(skb_put(skb, size), |
630 | RX_BUF(card, port) + sizeof(*header), | |
631 | size); | |
632 | } | |
9c54004e DW |
633 | if (atmdebug) { |
634 | dev_info(&card->dev->dev, "Received: device %d\n", port); | |
635 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", | |
90937231 DW |
636 | size, le16_to_cpu(header->vpi), |
637 | le16_to_cpu(header->vci)); | |
9c54004e DW |
638 | print_buffer(skb); |
639 | } | |
640 | ||
90937231 | 641 | switch (le16_to_cpu(header->type)) { |
9c54004e | 642 | case PKT_DATA: |
90937231 DW |
643 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
644 | le16_to_cpu(header->vci)); | |
9c54004e DW |
645 | if (!vcc) { |
646 | if (net_ratelimit()) | |
647 | dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n", | |
90937231 | 648 | le16_to_cpu(header->vci), le16_to_cpu(header->vpi), |
9c54004e DW |
649 | port); |
650 | continue; | |
651 | } | |
652 | atm_charge(vcc, skb->truesize); | |
653 | vcc->push(vcc, skb); | |
654 | atomic_inc(&vcc->stats->rx); | |
655 | break; | |
656 | ||
87ebb186 DW |
657 | case PKT_STATUS: |
658 | process_status(card, port, skb); | |
eaf83e39 | 659 | dev_kfree_skb_any(skb); |
87ebb186 DW |
660 | break; |
661 | ||
9c54004e DW |
662 | case PKT_COMMAND: |
663 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
664 | if (process_command(card, port, skb)) |
665 | break; | |
9c54004e DW |
666 | spin_lock(&card->cli_queue_lock); |
667 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
668 | if (net_ratelimit()) | |
669 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
670 | port); | |
eaf83e39 | 671 | dev_kfree_skb_any(skb); |
9c54004e DW |
672 | } else |
673 | skb_queue_tail(&card->cli_queue[port], skb); | |
674 | spin_unlock(&card->cli_queue_lock); | |
675 | break; | |
676 | } | |
677 | } | |
eaf83e39 DW |
678 | /* Allocate RX skbs for any ports which need them */ |
679 | if (card->using_dma && card->atmdev[port] && | |
680 | !card->rx_skb[port]) { | |
681 | struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC); | |
682 | if (skb) { | |
683 | SKB_CB(skb)->dma_addr = | |
684 | pci_map_single(card->dev, skb->data, | |
685 | RX_DMA_SIZE, PCI_DMA_FROMDEVICE); | |
686 | iowrite32(SKB_CB(skb)->dma_addr, | |
687 | card->config_regs + RX_DMA_ADDR(port)); | |
688 | card->rx_skb[port] = skb; | |
689 | } else { | |
690 | if (net_ratelimit()) | |
691 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); | |
692 | ||
693 | /* We'll have to try again later */ | |
694 | tasklet_schedule(&card->tlet); | |
695 | } | |
696 | } | |
9c54004e DW |
697 | } |
698 | if (rx_done) | |
699 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
700 | ||
701 | return; | |
702 | } | |
703 | ||
704 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
705 | { | |
706 | struct hlist_head *head; | |
707 | struct atm_vcc *vcc = NULL; | |
708 | struct hlist_node *node; | |
709 | struct sock *s; | |
710 | ||
711 | read_lock(&vcc_sklist_lock); | |
712 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
713 | sk_for_each(s, node, head) { | |
714 | vcc = atm_sk(s); | |
715 | if (vcc->dev == dev && vcc->vci == vci && | |
716 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE) | |
717 | goto out; | |
718 | } | |
719 | vcc = NULL; | |
720 | out: | |
721 | read_unlock(&vcc_sklist_lock); | |
722 | return vcc; | |
723 | } | |
724 | ||
725 | static int list_vccs(int vci) | |
726 | { | |
727 | struct hlist_head *head; | |
728 | struct atm_vcc *vcc; | |
729 | struct hlist_node *node; | |
730 | struct sock *s; | |
731 | int num_found = 0; | |
732 | int i; | |
733 | ||
734 | read_lock(&vcc_sklist_lock); | |
735 | if (vci != 0){ | |
736 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
737 | sk_for_each(s, node, head) { | |
738 | num_found ++; | |
739 | vcc = atm_sk(s); | |
740 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
741 | vcc->dev->number, | |
742 | vcc->vpi, | |
743 | vcc->vci); | |
744 | } | |
745 | } else { | |
1e615df6 | 746 | for(i = 0; i < VCC_HTABLE_SIZE; i++){ |
9c54004e DW |
747 | head = &vcc_hash[i]; |
748 | sk_for_each(s, node, head) { | |
749 | num_found ++; | |
750 | vcc = atm_sk(s); | |
751 | printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", | |
752 | vcc->dev->number, | |
753 | vcc->vpi, | |
754 | vcc->vci); | |
755 | } | |
756 | } | |
757 | } | |
758 | read_unlock(&vcc_sklist_lock); | |
759 | return num_found; | |
760 | } | |
761 | ||
1e615df6 DW |
762 | static void release_vccs(struct atm_dev *dev) |
763 | { | |
764 | int i; | |
765 | ||
766 | write_lock_irq(&vcc_sklist_lock); | |
767 | for (i = 0; i < VCC_HTABLE_SIZE; i++) { | |
768 | struct hlist_head *head = &vcc_hash[i]; | |
769 | struct hlist_node *node, *tmp; | |
770 | struct sock *s; | |
771 | struct atm_vcc *vcc; | |
772 | ||
773 | sk_for_each_safe(s, node, tmp, head) { | |
774 | vcc = atm_sk(s); | |
775 | if (vcc->dev == dev) { | |
776 | vcc_release_async(vcc, -EPIPE); | |
777 | sk_del_node_init(s); | |
778 | } | |
779 | } | |
780 | } | |
781 | write_unlock_irq(&vcc_sklist_lock); | |
782 | } | |
783 | ||
9c54004e DW |
784 | |
785 | static int popen(struct atm_vcc *vcc) | |
786 | { | |
787 | struct solos_card *card = vcc->dev->dev_data; | |
788 | struct sk_buff *skb; | |
789 | struct pkt_hdr *header; | |
790 | ||
b28a4b9a DW |
791 | if (vcc->qos.aal != ATM_AAL5) { |
792 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
793 | vcc->qos.aal); | |
794 | return -EINVAL; | |
795 | } | |
796 | ||
9c54004e DW |
797 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); |
798 | if (!skb && net_ratelimit()) { | |
799 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
800 | return -ENOMEM; | |
801 | } | |
802 | header = (void *)skb_put(skb, sizeof(*header)); | |
803 | ||
b76811af | 804 | header->size = cpu_to_le16(0); |
9c54004e DW |
805 | header->vpi = cpu_to_le16(vcc->vpi); |
806 | header->vci = cpu_to_le16(vcc->vci); | |
807 | header->type = cpu_to_le16(PKT_POPEN); | |
808 | ||
809 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
810 | ||
811 | // dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev)); | |
812 | set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci | |
813 | set_bit(ATM_VF_READY, &vcc->flags); | |
814 | list_vccs(0); | |
815 | ||
9c54004e DW |
816 | |
817 | return 0; | |
818 | } | |
819 | ||
820 | static void pclose(struct atm_vcc *vcc) | |
821 | { | |
822 | struct solos_card *card = vcc->dev->dev_data; | |
823 | struct sk_buff *skb; | |
824 | struct pkt_hdr *header; | |
825 | ||
826 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
827 | if (!skb) { | |
828 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
829 | return; | |
830 | } | |
831 | header = (void *)skb_put(skb, sizeof(*header)); | |
832 | ||
b76811af | 833 | header->size = cpu_to_le16(0); |
9c54004e DW |
834 | header->vpi = cpu_to_le16(vcc->vpi); |
835 | header->vci = cpu_to_le16(vcc->vci); | |
836 | header->type = cpu_to_le16(PKT_PCLOSE); | |
837 | ||
838 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
839 | ||
840 | // 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 |
841 | |
842 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
843 | clear_bit(ATM_VF_READY, &vcc->flags); | |
844 | ||
845 | return; | |
846 | } | |
847 | ||
848 | static int print_buffer(struct sk_buff *buf) | |
849 | { | |
850 | int len,i; | |
851 | char msg[500]; | |
852 | char item[10]; | |
853 | ||
854 | len = buf->len; | |
855 | for (i = 0; i < len; i++){ | |
856 | if(i % 8 == 0) | |
857 | sprintf(msg, "%02X: ", i); | |
858 | ||
859 | sprintf(item,"%02X ",*(buf->data + i)); | |
860 | strcat(msg, item); | |
861 | if(i % 8 == 7) { | |
862 | sprintf(item, "\n"); | |
863 | strcat(msg, item); | |
864 | printk(KERN_DEBUG "%s", msg); | |
865 | } | |
866 | } | |
867 | if (i % 8 != 0) { | |
868 | sprintf(item, "\n"); | |
869 | strcat(msg, item); | |
870 | printk(KERN_DEBUG "%s", msg); | |
871 | } | |
872 | printk(KERN_DEBUG "\n"); | |
873 | ||
874 | return 0; | |
875 | } | |
876 | ||
877 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
878 | struct atm_vcc *vcc) | |
879 | { | |
880 | int old_len; | |
f69e4170 | 881 | unsigned long flags; |
9c54004e | 882 | |
90937231 | 883 | SKB_CB(skb)->vcc = vcc; |
9c54004e | 884 | |
f69e4170 | 885 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
9c54004e DW |
886 | old_len = skb_queue_len(&card->tx_queue[port]); |
887 | skb_queue_tail(&card->tx_queue[port], skb); | |
f69e4170 DW |
888 | if (!old_len) { |
889 | card->tx_mask |= (1 << port); | |
890 | } | |
891 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); | |
9c54004e | 892 | |
f69e4170 DW |
893 | /* Theoretically we could just schedule the tasklet here, but |
894 | that introduces latency we don't want -- it's noticeable */ | |
9c54004e DW |
895 | if (!old_len) |
896 | fpga_tx(card); | |
897 | } | |
898 | ||
899 | static int fpga_tx(struct solos_card *card) | |
900 | { | |
901 | uint32_t tx_pending; | |
902 | uint32_t tx_started = 0; | |
903 | struct sk_buff *skb; | |
904 | struct atm_vcc *vcc; | |
905 | unsigned char port; | |
906 | unsigned long flags; | |
907 | ||
908 | spin_lock_irqsave(&card->tx_lock, flags); | |
909 | ||
f69e4170 | 910 | tx_pending = ioread32(card->config_regs + FLAGS_ADDR) & card->tx_mask; |
9c54004e DW |
911 | |
912 | dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending); | |
913 | ||
914 | for (port = 0; port < card->nr_ports; port++) { | |
af780656 | 915 | if (card->atmdev[port] && !(tx_pending & (1 << port))) { |
eaf83e39 | 916 | struct sk_buff *oldskb = card->tx_skb[port]; |
9c54004e | 917 | |
eaf83e39 DW |
918 | if (oldskb) |
919 | pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, | |
920 | oldskb->len, PCI_DMA_TODEVICE); | |
921 | ||
9c54004e DW |
922 | spin_lock(&card->tx_queue_lock); |
923 | skb = skb_dequeue(&card->tx_queue[port]); | |
f69e4170 DW |
924 | if (!skb) |
925 | card->tx_mask &= ~(1 << port); | |
9c54004e DW |
926 | spin_unlock(&card->tx_queue_lock); |
927 | ||
eaf83e39 DW |
928 | if (skb && !card->using_dma) { |
929 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
930 | tx_started |= 1 << port; //Set TX full flag | |
931 | oldskb = skb; /* We're done with this skb already */ | |
932 | } else if (skb && card->using_dma) { | |
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, | |
936 | card->config_regs + TX_DMA_ADDR(port)); | |
937 | } | |
938 | ||
939 | if (!oldskb) | |
9c54004e DW |
940 | continue; |
941 | ||
eaf83e39 | 942 | /* Clean up and free oldskb now it's gone */ |
9c54004e DW |
943 | if (atmdebug) { |
944 | dev_info(&card->dev->dev, "Transmitted: port %d\n", | |
945 | port); | |
eaf83e39 | 946 | print_buffer(oldskb); |
9c54004e | 947 | } |
90937231 | 948 | |
eaf83e39 | 949 | vcc = SKB_CB(oldskb)->vcc; |
90937231 | 950 | |
eaf83e39 DW |
951 | if (vcc) { |
952 | atomic_inc(&vcc->stats->tx); | |
953 | solos_pop(vcc, oldskb); | |
954 | } else | |
955 | dev_kfree_skb_irq(oldskb); | |
90937231 | 956 | |
9c54004e DW |
957 | } |
958 | } | |
959 | if (tx_started) | |
960 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
961 | ||
962 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
963 | return 0; | |
964 | } | |
965 | ||
966 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
967 | { | |
968 | struct solos_card *card = vcc->dev->dev_data; | |
9c54004e | 969 | struct pkt_hdr *header; |
b76811af | 970 | int pktlen; |
9c54004e DW |
971 | |
972 | //dev_dbg(&card->dev->dev, "psend called.\n"); | |
973 | //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci); | |
974 | ||
b76811af DW |
975 | pktlen = skb->len; |
976 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
977 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
978 | solos_pop(vcc, skb); | |
979 | return 0; | |
980 | } | |
981 | ||
982 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
983 | int expand_by = 0; | |
984 | int ret; | |
985 | ||
986 | if (skb_headroom(skb) < sizeof(*header)) | |
987 | expand_by = sizeof(*header) - skb_headroom(skb); | |
988 | ||
989 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
990 | if (ret) { | |
4306cad6 | 991 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
992 | solos_pop(vcc, skb); |
993 | return ret; | |
994 | } | |
995 | } | |
996 | ||
997 | header = (void *)skb_push(skb, sizeof(*header)); | |
998 | ||
b76811af DW |
999 | /* This does _not_ include the size of the header */ |
1000 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1001 | header->vpi = cpu_to_le16(vcc->vpi); |
1002 | header->vci = cpu_to_le16(vcc->vci); | |
1003 | header->type = cpu_to_le16(PKT_DATA); | |
1004 | ||
1005 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1006 | ||
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | static struct atmdev_ops fpga_ops = { | |
1011 | .open = popen, | |
1012 | .close = pclose, | |
1013 | .ioctl = NULL, | |
1014 | .getsockopt = NULL, | |
1015 | .setsockopt = NULL, | |
1016 | .send = psend, | |
1017 | .send_oam = NULL, | |
1018 | .phy_put = NULL, | |
1019 | .phy_get = NULL, | |
1020 | .change_qos = NULL, | |
1021 | .proc_read = NULL, | |
1022 | .owner = THIS_MODULE | |
1023 | }; | |
1024 | ||
1025 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1026 | { | |
1027 | int err, i; | |
1028 | uint16_t fpga_ver; | |
1029 | uint8_t major_ver, minor_ver; | |
1030 | uint32_t data32; | |
1031 | struct solos_card *card; | |
1032 | ||
9c54004e DW |
1033 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1034 | if (!card) | |
1035 | return -ENOMEM; | |
1036 | ||
1037 | card->dev = dev; | |
fa755b9f | 1038 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1039 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1040 | |
1041 | err = pci_enable_device(dev); | |
1042 | if (err) { | |
1043 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1044 | goto out; | |
1045 | } | |
1046 | ||
90937231 DW |
1047 | err = pci_set_dma_mask(dev, DMA_32BIT_MASK); |
1048 | if (err) { | |
1049 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1050 | goto out; | |
1051 | } | |
1052 | ||
9c54004e DW |
1053 | err = pci_request_regions(dev, "solos"); |
1054 | if (err) { | |
1055 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1056 | goto out; | |
1057 | } | |
1058 | ||
1059 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1060 | if (!card->config_regs) { | |
1061 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
1062 | goto out_release_regions; | |
1063 | } | |
1064 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1065 | if (!card->buffers) { | |
1066 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
1067 | goto out_unmap_config; | |
1068 | } | |
1069 | ||
1070 | // for(i=0;i<64 ;i+=4){ | |
1071 | // data32=ioread32(card->buffers + i); | |
1072 | // dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32); | |
1073 | // } | |
1074 | ||
1075 | //Fill Config Mem with zeros | |
1076 | for(i = 0; i < 128; i += 4) | |
1077 | iowrite32(0, card->config_regs + i); | |
1078 | ||
1079 | //Set RX empty flags | |
1080 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1081 | ||
1082 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1083 | fpga_ver = (data32 & 0x0000FFFF); | |
1084 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1085 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
1086 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", | |
1087 | major_ver, minor_ver, fpga_ver); | |
1088 | ||
90937231 DW |
1089 | if (fpga_ver > 27) |
1090 | card->using_dma = 1; | |
1091 | ||
9c54004e DW |
1092 | card->nr_ports = 2; /* FIXME: Detect daughterboard */ |
1093 | ||
9c54004e | 1094 | pci_set_drvdata(dev, card); |
fa755b9f | 1095 | |
9c54004e DW |
1096 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1097 | spin_lock_init(&card->tx_lock); | |
1098 | spin_lock_init(&card->tx_queue_lock); | |
1099 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1100 | spin_lock_init(&card->param_queue_lock); |
1101 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1102 | |
9c54004e DW |
1103 | /* |
1104 | // Set Loopback mode | |
1105 | data32 = 0x00010000; | |
1106 | iowrite32(data32,card->config_regs + FLAGS_ADDR); | |
1107 | */ | |
1108 | /* | |
1109 | // Fill Buffers with zeros | |
1110 | for (i = 0; i < BUF_SIZE * 8; i += 4) | |
1111 | iowrite32(0, card->buffers + i); | |
1112 | */ | |
1113 | /* | |
1114 | for(i = 0; i < (BUF_SIZE * 1); i += 4) | |
1115 | iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE)); | |
1116 | for(i = 0; i < (BUF_SIZE * 1); i += 4) | |
1117 | iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE)); | |
1118 | ||
1119 | // Read Config Memory | |
1120 | printk(KERN_DEBUG "Reading Config MEM\n"); | |
1121 | i = 0; | |
1122 | for(i = 0; i < 16; i++) { | |
1123 | data32=ioread32(card->buffers + i*(BUF_SIZE/2)); | |
1124 | printk(KERN_ALERT "Addr: %lX Data: %08lX\n", | |
1125 | (unsigned long)(addr_start + i*(BUF_SIZE/2)), | |
1126 | (unsigned long)data32); | |
1127 | } | |
1128 | */ | |
1129 | //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq); | |
fcd82664 | 1130 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
9c54004e | 1131 | "solos-pci", card); |
fa755b9f | 1132 | if (err) { |
9c54004e | 1133 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1134 | goto out_unmap_both; |
1135 | } | |
9c54004e DW |
1136 | |
1137 | // Enable IRQs | |
1138 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); | |
1139 | ||
fa755b9f DW |
1140 | if (fpga_upgrade) |
1141 | flash_upgrade(card, 0); | |
1142 | ||
1143 | if (firmware_upgrade) | |
1144 | flash_upgrade(card, 1); | |
1145 | ||
1146 | err = atm_init(card); | |
1147 | if (err) | |
1148 | goto out_free_irq; | |
1149 | ||
9c54004e DW |
1150 | return 0; |
1151 | ||
fa755b9f DW |
1152 | out_free_irq: |
1153 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1154 | free_irq(dev->irq, card); | |
1155 | tasklet_kill(&card->tlet); | |
1156 | ||
9c54004e | 1157 | out_unmap_both: |
fa755b9f | 1158 | pci_set_drvdata(dev, NULL); |
9c54004e DW |
1159 | pci_iounmap(dev, card->config_regs); |
1160 | out_unmap_config: | |
1161 | pci_iounmap(dev, card->buffers); | |
1162 | out_release_regions: | |
1163 | pci_release_regions(dev); | |
1164 | out: | |
1165 | return err; | |
1166 | } | |
1167 | ||
1168 | static int atm_init(struct solos_card *card) | |
1169 | { | |
1170 | int i; | |
1171 | ||
9c54004e | 1172 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1173 | struct sk_buff *skb; |
1174 | struct pkt_hdr *header; | |
1175 | ||
9c54004e DW |
1176 | skb_queue_head_init(&card->tx_queue[i]); |
1177 | skb_queue_head_init(&card->cli_queue[i]); | |
1178 | ||
1179 | card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); | |
1180 | if (!card->atmdev[i]) { | |
1181 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1182 | atm_remove(card); | |
1183 | return -ENODEV; | |
1184 | } | |
1185 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1186 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1187 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1188 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1189 | |
1190 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1191 | ||
1192 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1193 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1194 | card->atmdev[i]->dev_data = card; | |
1195 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
87ebb186 DW |
1196 | card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN; |
1197 | ||
1198 | skb = alloc_skb(sizeof(*header), GFP_ATOMIC); | |
1199 | if (!skb) { | |
1200 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1201 | continue; | |
1202 | } | |
1203 | ||
1204 | header = (void *)skb_put(skb, sizeof(*header)); | |
1205 | ||
1206 | header->size = cpu_to_le16(0); | |
1207 | header->vpi = cpu_to_le16(0); | |
1208 | header->vci = cpu_to_le16(0); | |
1209 | header->type = cpu_to_le16(PKT_STATUS); | |
1210 | ||
1211 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1212 | } |
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | static void atm_remove(struct solos_card *card) | |
1217 | { | |
1218 | int i; | |
1219 | ||
1220 | for (i = 0; i < card->nr_ports; i++) { | |
1221 | if (card->atmdev[i]) { | |
1222 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); | |
c0fe3026 DW |
1223 | |
1224 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e DW |
1225 | atm_dev_deregister(card->atmdev[i]); |
1226 | } | |
1227 | } | |
1228 | } | |
1229 | ||
1230 | static void fpga_remove(struct pci_dev *dev) | |
1231 | { | |
1232 | struct solos_card *card = pci_get_drvdata(dev); | |
1233 | ||
9c54004e DW |
1234 | atm_remove(card); |
1235 | ||
1236 | dev_vdbg(&dev->dev, "Freeing IRQ\n"); | |
1237 | // Disable IRQs from FPGA | |
1238 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1239 | free_irq(dev->irq, card); | |
1240 | tasklet_kill(&card->tlet); | |
1241 | ||
1242 | // iowrite32(0x01,pciregs); | |
1243 | dev_vdbg(&dev->dev, "Unmapping PCI resource\n"); | |
1244 | pci_iounmap(dev, card->buffers); | |
1245 | pci_iounmap(dev, card->config_regs); | |
1246 | ||
1247 | dev_vdbg(&dev->dev, "Releasing PCI Region\n"); | |
1248 | pci_release_regions(dev); | |
1249 | pci_disable_device(dev); | |
1250 | ||
1251 | pci_set_drvdata(dev, NULL); | |
1252 | kfree(card); | |
1253 | // dev_dbg(&card->dev->dev, "fpga_remove\n"); | |
1254 | return; | |
1255 | } | |
1256 | ||
1257 | static struct pci_device_id fpga_pci_tbl[] __devinitdata = { | |
1258 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
1259 | { 0, } | |
1260 | }; | |
1261 | ||
1262 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1263 | ||
1264 | static struct pci_driver fpga_driver = { | |
1265 | .name = "solos", | |
1266 | .id_table = fpga_pci_tbl, | |
1267 | .probe = fpga_probe, | |
1268 | .remove = fpga_remove, | |
1269 | }; | |
1270 | ||
1271 | ||
1272 | static int __init solos_pci_init(void) | |
1273 | { | |
1274 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); | |
1275 | return pci_register_driver(&fpga_driver); | |
1276 | } | |
1277 | ||
1278 | static void __exit solos_pci_exit(void) | |
1279 | { | |
1280 | pci_unregister_driver(&fpga_driver); | |
1281 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1282 | } | |
1283 | ||
1284 | module_init(solos_pci_init); | |
1285 | module_exit(solos_pci_exit); |