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> | |
5a0e3ad6 | 43 | #include <linux/slab.h> |
9c54004e | 44 | |
13af8164 NW |
45 | #define VERSION "1.04" |
46 | #define DRIVER_VERSION 0x01 | |
9c54004e DW |
47 | #define PTAG "solos-pci" |
48 | ||
49 | #define CONFIG_RAM_SIZE 128 | |
50 | #define FLAGS_ADDR 0x7C | |
51 | #define IRQ_EN_ADDR 0x78 | |
52 | #define FPGA_VER 0x74 | |
53 | #define IRQ_CLEAR 0x70 | |
7c4015bd SF |
54 | #define WRITE_FLASH 0x6C |
55 | #define PORTS 0x68 | |
56 | #define FLASH_BLOCK 0x64 | |
57 | #define FLASH_BUSY 0x60 | |
58 | #define FPGA_MODE 0x5C | |
59 | #define FLASH_MODE 0x58 | |
f9baad02 | 60 | #define GPIO_STATUS 0x54 |
13af8164 | 61 | #define DRIVER_VER 0x50 |
90937231 DW |
62 | #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) |
63 | #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) | |
9c54004e DW |
64 | |
65 | #define DATA_RAM_SIZE 32768 | |
4dbedf43 NW |
66 | #define BUF_SIZE 2048 |
67 | #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/ | |
13af8164 NW |
68 | /* Old boards use ATMEL AD45DB161D flash */ |
69 | #define ATMEL_FPGA_PAGE 528 /* FPGA flash page size*/ | |
70 | #define ATMEL_SOLOS_PAGE 512 /* Solos flash page size*/ | |
71 | #define ATMEL_FPGA_BLOCK (ATMEL_FPGA_PAGE * 8) /* FPGA block size*/ | |
72 | #define ATMEL_SOLOS_BLOCK (ATMEL_SOLOS_PAGE * 8) /* Solos block size*/ | |
73 | /* Current boards use M25P/M25PE SPI flash */ | |
74 | #define SPI_FLASH_BLOCK (256 * 64) | |
9c54004e | 75 | |
4dbedf43 NW |
76 | #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2) |
77 | #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size)) | |
78 | #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2) | |
9c54004e | 79 | |
eaf83e39 DW |
80 | #define RX_DMA_SIZE 2048 |
81 | ||
4dbedf43 NW |
82 | #define FPGA_VERSION(a,b) (((a) << 8) + (b)) |
83 | #define LEGACY_BUFFERS 2 | |
84 | #define DMA_SUPPORTED 4 | |
85 | ||
cc3657e1 | 86 | static int reset = 0; |
9c54004e | 87 | static int atmdebug = 0; |
7c4015bd SF |
88 | static int firmware_upgrade = 0; |
89 | static int fpga_upgrade = 0; | |
4dbedf43 NW |
90 | static int db_firmware_upgrade = 0; |
91 | static int db_fpga_upgrade = 0; | |
9c54004e DW |
92 | |
93 | struct pkt_hdr { | |
94 | __le16 size; | |
95 | __le16 vpi; | |
96 | __le16 vci; | |
97 | __le16 type; | |
98 | }; | |
99 | ||
90937231 DW |
100 | struct solos_skb_cb { |
101 | struct atm_vcc *vcc; | |
102 | uint32_t dma_addr; | |
103 | }; | |
104 | ||
105 | ||
106 | #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) | |
107 | ||
9c54004e DW |
108 | #define PKT_DATA 0 |
109 | #define PKT_COMMAND 1 | |
110 | #define PKT_POPEN 3 | |
111 | #define PKT_PCLOSE 4 | |
87ebb186 | 112 | #define PKT_STATUS 5 |
9c54004e DW |
113 | |
114 | struct solos_card { | |
115 | void __iomem *config_regs; | |
116 | void __iomem *buffers; | |
117 | int nr_ports; | |
f69e4170 | 118 | int tx_mask; |
9c54004e DW |
119 | struct pci_dev *dev; |
120 | struct atm_dev *atmdev[4]; | |
121 | struct tasklet_struct tlet; | |
122 | spinlock_t tx_lock; | |
123 | spinlock_t tx_queue_lock; | |
124 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
125 | spinlock_t param_queue_lock; |
126 | struct list_head param_queue; | |
9c54004e DW |
127 | struct sk_buff_head tx_queue[4]; |
128 | struct sk_buff_head cli_queue[4]; | |
90937231 DW |
129 | struct sk_buff *tx_skb[4]; |
130 | struct sk_buff *rx_skb[4]; | |
152a2a8b | 131 | unsigned char *dma_bounce; |
01e2ffac | 132 | wait_queue_head_t param_wq; |
fa755b9f | 133 | wait_queue_head_t fw_wq; |
90937231 | 134 | int using_dma; |
152a2a8b | 135 | int dma_alignment; |
4dbedf43 NW |
136 | int fpga_version; |
137 | int buffer_size; | |
13af8164 | 138 | int atmel_flash; |
9c54004e DW |
139 | }; |
140 | ||
01e2ffac DW |
141 | |
142 | struct solos_param { | |
143 | struct list_head list; | |
144 | pid_t pid; | |
145 | int port; | |
146 | struct sk_buff *response; | |
9c54004e DW |
147 | }; |
148 | ||
149 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) | |
150 | ||
151 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
152 | MODULE_DESCRIPTION("Solos PCI driver"); | |
153 | MODULE_VERSION(VERSION); | |
154 | MODULE_LICENSE("GPL"); | |
9fca79d6 BH |
155 | MODULE_FIRMWARE("solos-FPGA.bin"); |
156 | MODULE_FIRMWARE("solos-Firmware.bin"); | |
157 | MODULE_FIRMWARE("solos-db-FPGA.bin"); | |
cc3657e1 | 158 | MODULE_PARM_DESC(reset, "Reset Solos chips on startup"); |
9c54004e | 159 | MODULE_PARM_DESC(atmdebug, "Print ATM data"); |
7c4015bd SF |
160 | MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); |
161 | MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); | |
4dbedf43 NW |
162 | MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade"); |
163 | MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade"); | |
cc3657e1 | 164 | module_param(reset, int, 0444); |
4306cad6 | 165 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
166 | module_param(firmware_upgrade, int, 0444); |
167 | module_param(fpga_upgrade, int, 0444); | |
4dbedf43 NW |
168 | module_param(db_firmware_upgrade, int, 0444); |
169 | module_param(db_fpga_upgrade, int, 0444); | |
9c54004e DW |
170 | |
171 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
172 | struct atm_vcc *vcc); | |
35c2221b | 173 | static uint32_t fpga_tx(struct solos_card *); |
9c54004e DW |
174 | static irqreturn_t solos_irq(int irq, void *dev_id); |
175 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
d9ca676b | 176 | static int atm_init(struct solos_card *, struct device *); |
9c54004e DW |
177 | static void atm_remove(struct solos_card *); |
178 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
179 | static void solos_bh(unsigned long); | |
180 | static int print_buffer(struct sk_buff *buf); | |
181 | ||
182 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
183 | { | |
184 | if (vcc->pop) | |
185 | vcc->pop(vcc, skb); | |
186 | else | |
187 | dev_kfree_skb_any(skb); | |
188 | } | |
189 | ||
01e2ffac DW |
190 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
191 | char *buf) | |
192 | { | |
193 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
194 | struct solos_card *card = atmdev->dev_data; | |
195 | struct solos_param prm; | |
196 | struct sk_buff *skb; | |
197 | struct pkt_hdr *header; | |
198 | int buflen; | |
199 | ||
200 | buflen = strlen(attr->attr.name) + 10; | |
201 | ||
3456b221 | 202 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
203 | if (!skb) { |
204 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
205 | return -ENOMEM; | |
206 | } | |
207 | ||
208 | header = (void *)skb_put(skb, sizeof(*header)); | |
209 | ||
210 | buflen = snprintf((void *)&header[1], buflen - 1, | |
211 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
212 | skb_put(skb, buflen); | |
213 | ||
214 | header->size = cpu_to_le16(buflen); | |
215 | header->vpi = cpu_to_le16(0); | |
216 | header->vci = cpu_to_le16(0); | |
217 | header->type = cpu_to_le16(PKT_COMMAND); | |
218 | ||
219 | prm.pid = current->pid; | |
220 | prm.response = NULL; | |
221 | prm.port = SOLOS_CHAN(atmdev); | |
222 | ||
223 | spin_lock_irq(&card->param_queue_lock); | |
224 | list_add(&prm.list, &card->param_queue); | |
225 | spin_unlock_irq(&card->param_queue_lock); | |
226 | ||
227 | fpga_queue(card, prm.port, skb, NULL); | |
228 | ||
229 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
230 | ||
231 | spin_lock_irq(&card->param_queue_lock); | |
232 | list_del(&prm.list); | |
233 | spin_unlock_irq(&card->param_queue_lock); | |
234 | ||
235 | if (!prm.response) | |
236 | return -EIO; | |
237 | ||
238 | buflen = prm.response->len; | |
239 | memcpy(buf, prm.response->data, buflen); | |
240 | kfree_skb(prm.response); | |
241 | ||
242 | return buflen; | |
243 | } | |
244 | ||
245 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
246 | const char *buf, size_t count) | |
247 | { | |
248 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
249 | struct solos_card *card = atmdev->dev_data; | |
250 | struct solos_param prm; | |
251 | struct sk_buff *skb; | |
252 | struct pkt_hdr *header; | |
253 | int buflen; | |
254 | ssize_t ret; | |
255 | ||
256 | buflen = strlen(attr->attr.name) + 11 + count; | |
257 | ||
3456b221 | 258 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
259 | if (!skb) { |
260 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
261 | return -ENOMEM; | |
262 | } | |
263 | ||
264 | header = (void *)skb_put(skb, sizeof(*header)); | |
265 | ||
266 | buflen = snprintf((void *)&header[1], buflen - 1, | |
267 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
268 | ||
269 | skb_put(skb, buflen); | |
270 | header->size = cpu_to_le16(buflen); | |
271 | header->vpi = cpu_to_le16(0); | |
272 | header->vci = cpu_to_le16(0); | |
273 | header->type = cpu_to_le16(PKT_COMMAND); | |
274 | ||
275 | prm.pid = current->pid; | |
276 | prm.response = NULL; | |
277 | prm.port = SOLOS_CHAN(atmdev); | |
278 | ||
279 | spin_lock_irq(&card->param_queue_lock); | |
280 | list_add(&prm.list, &card->param_queue); | |
281 | spin_unlock_irq(&card->param_queue_lock); | |
282 | ||
283 | fpga_queue(card, prm.port, skb, NULL); | |
284 | ||
285 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
286 | ||
287 | spin_lock_irq(&card->param_queue_lock); | |
288 | list_del(&prm.list); | |
289 | spin_unlock_irq(&card->param_queue_lock); | |
290 | ||
291 | skb = prm.response; | |
292 | ||
293 | if (!skb) | |
294 | return -EIO; | |
295 | ||
296 | buflen = skb->len; | |
297 | ||
298 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
299 | if (skb->data[buflen - 1] == '\n') | |
300 | buflen--; | |
301 | ||
302 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
303 | ret = count; | |
304 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
305 | ret = -EIO; | |
306 | else { | |
307 | /* We know we have enough space allocated for this; we allocated | |
308 | it ourselves */ | |
309 | skb->data[buflen] = 0; | |
310 | ||
311 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
312 | skb->data); | |
313 | ret = -EIO; | |
314 | } | |
315 | kfree_skb(skb); | |
316 | ||
317 | return ret; | |
318 | } | |
319 | ||
87ebb186 DW |
320 | static char *next_string(struct sk_buff *skb) |
321 | { | |
322 | int i = 0; | |
323 | char *this = skb->data; | |
c6428e52 DW |
324 | |
325 | for (i = 0; i < skb->len; i++) { | |
87ebb186 DW |
326 | if (this[i] == '\n') { |
327 | this[i] = 0; | |
c6428e52 | 328 | skb_pull(skb, i + 1); |
87ebb186 DW |
329 | return this; |
330 | } | |
c6428e52 DW |
331 | if (!isprint(this[i])) |
332 | return NULL; | |
87ebb186 DW |
333 | } |
334 | return NULL; | |
335 | } | |
336 | ||
337 | /* | |
338 | * Status packet has fields separated by \n, starting with a version number | |
339 | * for the information therein. Fields are.... | |
340 | * | |
341 | * packet version | |
87ebb186 | 342 | * RxBitRate (version >= 1) |
f87b2ed2 | 343 | * TxBitRate (version >= 1) |
87ebb186 | 344 | * State (version >= 1) |
f87b2ed2 DW |
345 | * LocalSNRMargin (version >= 1) |
346 | * LocalLineAttn (version >= 1) | |
87ebb186 DW |
347 | */ |
348 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
349 | { | |
e94d91a6 LC |
350 | char *str, *state_str, *snr, *attn; |
351 | int ver, rate_up, rate_down, err; | |
87ebb186 DW |
352 | |
353 | if (!card->atmdev[port]) | |
354 | return -ENODEV; | |
355 | ||
356 | str = next_string(skb); | |
357 | if (!str) | |
358 | return -EIO; | |
359 | ||
e94d91a6 LC |
360 | err = kstrtoint(str, 10, &ver); |
361 | if (err) { | |
362 | dev_warn(&card->dev->dev, "Unexpected status interrupt version\n"); | |
363 | return err; | |
364 | } | |
87ebb186 DW |
365 | if (ver < 1) { |
366 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
367 | ver); | |
368 | return -EIO; | |
369 | } | |
370 | ||
371 | str = next_string(skb); | |
c6428e52 DW |
372 | if (!str) |
373 | return -EIO; | |
95852f48 DW |
374 | if (!strcmp(str, "ERROR")) { |
375 | dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n", | |
376 | port); | |
377 | return 0; | |
378 | } | |
379 | ||
e94d91a6 LC |
380 | err = kstrtoint(str, 10, &rate_down); |
381 | if (err) | |
382 | return err; | |
87ebb186 DW |
383 | |
384 | str = next_string(skb); | |
c6428e52 DW |
385 | if (!str) |
386 | return -EIO; | |
e94d91a6 LC |
387 | err = kstrtoint(str, 10, &rate_up); |
388 | if (err) | |
389 | return err; | |
87ebb186 | 390 | |
af780656 | 391 | state_str = next_string(skb); |
c6428e52 DW |
392 | if (!state_str) |
393 | return -EIO; | |
f87b2ed2 DW |
394 | |
395 | /* Anything but 'Showtime' is down */ | |
396 | if (strcmp(state_str, "Showtime")) { | |
49d49106 | 397 | atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST); |
f87b2ed2 DW |
398 | dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str); |
399 | return 0; | |
1e615df6 | 400 | } |
87ebb186 | 401 | |
f87b2ed2 | 402 | snr = next_string(skb); |
6cf5767c | 403 | if (!snr) |
f87b2ed2 DW |
404 | return -EIO; |
405 | attn = next_string(skb); | |
406 | if (!attn) | |
407 | return -EIO; | |
408 | ||
409 | dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n", | |
410 | port, state_str, rate_down/1000, rate_up/1000, | |
411 | snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn); | |
412 | ||
c6428e52 | 413 | card->atmdev[port]->link_rate = rate_down / 424; |
49d49106 | 414 | atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND); |
87ebb186 | 415 | |
87ebb186 DW |
416 | return 0; |
417 | } | |
418 | ||
01e2ffac DW |
419 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
420 | { | |
421 | struct solos_param *prm; | |
422 | unsigned long flags; | |
423 | int cmdpid; | |
e94d91a6 | 424 | int found = 0, err; |
01e2ffac DW |
425 | |
426 | if (skb->len < 7) | |
427 | return 0; | |
428 | ||
429 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
430 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
431 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
432 | skb->data[6] != '\n') | |
433 | return 0; | |
434 | ||
e94d91a6 LC |
435 | err = kstrtoint(&skb->data[1], 10, &cmdpid); |
436 | if (err) | |
437 | return err; | |
01e2ffac DW |
438 | |
439 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
440 | list_for_each_entry(prm, &card->param_queue, list) { | |
441 | if (prm->port == port && prm->pid == cmdpid) { | |
442 | prm->response = skb; | |
443 | skb_pull(skb, 7); | |
444 | wake_up(&card->param_wq); | |
445 | found = 1; | |
446 | break; | |
447 | } | |
448 | } | |
449 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
450 | return found; | |
451 | } | |
452 | ||
9c54004e DW |
453 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
454 | char *buf) | |
455 | { | |
456 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
457 | struct solos_card *card = atmdev->dev_data; | |
458 | struct sk_buff *skb; | |
f1ee89d5 | 459 | unsigned int len; |
9c54004e DW |
460 | |
461 | spin_lock(&card->cli_queue_lock); | |
462 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
463 | spin_unlock(&card->cli_queue_lock); | |
464 | if(skb == NULL) | |
465 | return sprintf(buf, "No data.\n"); | |
466 | ||
f1ee89d5 JS |
467 | len = skb->len; |
468 | memcpy(buf, skb->data, len); | |
9c54004e DW |
469 | |
470 | kfree_skb(skb); | |
f1ee89d5 | 471 | return len; |
9c54004e DW |
472 | } |
473 | ||
474 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
475 | { | |
476 | struct sk_buff *skb; | |
477 | struct pkt_hdr *header; | |
478 | ||
9c54004e DW |
479 | if (size > (BUF_SIZE - sizeof(*header))) { |
480 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
481 | return 0; | |
482 | } | |
483 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
484 | if (!skb) { | |
485 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
486 | return 0; | |
487 | } | |
488 | ||
489 | header = (void *)skb_put(skb, sizeof(*header)); | |
490 | ||
491 | header->size = cpu_to_le16(size); | |
492 | header->vpi = cpu_to_le16(0); | |
493 | header->vci = cpu_to_le16(0); | |
494 | header->type = cpu_to_le16(PKT_COMMAND); | |
495 | ||
496 | memcpy(skb_put(skb, size), buf, size); | |
497 | ||
498 | fpga_queue(card, dev, skb, NULL); | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
503 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
504 | const char *buf, size_t count) | |
505 | { | |
506 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
507 | struct solos_card *card = atmdev->dev_data; | |
508 | int err; | |
509 | ||
510 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
511 | ||
512 | return err?:count; | |
513 | } | |
514 | ||
f9baad02 NW |
515 | struct geos_gpio_attr { |
516 | struct device_attribute attr; | |
517 | int offset; | |
518 | }; | |
519 | ||
520 | #define SOLOS_GPIO_ATTR(_name, _mode, _show, _store, _offset) \ | |
521 | struct geos_gpio_attr gpio_attr_##_name = { \ | |
522 | .attr = __ATTR(_name, _mode, _show, _store), \ | |
523 | .offset = _offset } | |
524 | ||
525 | static ssize_t geos_gpio_store(struct device *dev, struct device_attribute *attr, | |
526 | const char *buf, size_t count) | |
527 | { | |
bd0ed561 | 528 | struct pci_dev *pdev = to_pci_dev(dev); |
f9baad02 NW |
529 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
530 | struct solos_card *card = pci_get_drvdata(pdev); | |
531 | uint32_t data32; | |
532 | ||
533 | if (count != 1 && (count != 2 || buf[1] != '\n')) | |
534 | return -EINVAL; | |
535 | ||
536 | spin_lock_irq(&card->param_queue_lock); | |
537 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
538 | if (buf[0] == '1') { | |
539 | data32 |= 1 << gattr->offset; | |
540 | iowrite32(data32, card->config_regs + GPIO_STATUS); | |
541 | } else if (buf[0] == '0') { | |
542 | data32 &= ~(1 << gattr->offset); | |
543 | iowrite32(data32, card->config_regs + GPIO_STATUS); | |
544 | } else { | |
545 | count = -EINVAL; | |
546 | } | |
29042073 | 547 | spin_unlock_irq(&card->param_queue_lock); |
f9baad02 NW |
548 | return count; |
549 | } | |
550 | ||
551 | static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr, | |
552 | char *buf) | |
553 | { | |
bd0ed561 | 554 | struct pci_dev *pdev = to_pci_dev(dev); |
f9baad02 NW |
555 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
556 | struct solos_card *card = pci_get_drvdata(pdev); | |
557 | uint32_t data32; | |
558 | ||
559 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
560 | data32 = (data32 >> gattr->offset) & 1; | |
561 | ||
562 | return sprintf(buf, "%d\n", data32); | |
563 | } | |
564 | ||
565 | static ssize_t hardware_show(struct device *dev, struct device_attribute *attr, | |
566 | char *buf) | |
567 | { | |
bd0ed561 | 568 | struct pci_dev *pdev = to_pci_dev(dev); |
f9baad02 NW |
569 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
570 | struct solos_card *card = pci_get_drvdata(pdev); | |
571 | uint32_t data32; | |
572 | ||
573 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
574 | switch (gattr->offset) { | |
575 | case 0: | |
576 | /* HardwareVersion */ | |
577 | data32 = data32 & 0x1F; | |
578 | break; | |
579 | case 1: | |
580 | /* HardwareVariant */ | |
581 | data32 = (data32 >> 5) & 0x0F; | |
582 | break; | |
583 | } | |
584 | return sprintf(buf, "%d\n", data32); | |
585 | } | |
586 | ||
9c54004e DW |
587 | static DEVICE_ATTR(console, 0644, console_show, console_store); |
588 | ||
d057f0a4 DW |
589 | |
590 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
591 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
592 | ||
593 | #include "solos-attrlist.c" | |
594 | ||
f9baad02 NW |
595 | static SOLOS_GPIO_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store, 9); |
596 | static SOLOS_GPIO_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store, 10); | |
597 | static SOLOS_GPIO_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store, 11); | |
598 | static SOLOS_GPIO_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store, 12); | |
599 | static SOLOS_GPIO_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store, 13); | |
600 | static SOLOS_GPIO_ATTR(PushButton, 0444, geos_gpio_show, NULL, 14); | |
601 | static SOLOS_GPIO_ATTR(HardwareVersion, 0444, hardware_show, NULL, 0); | |
602 | static SOLOS_GPIO_ATTR(HardwareVariant, 0444, hardware_show, NULL, 1); | |
d057f0a4 DW |
603 | #undef SOLOS_ATTR_RO |
604 | #undef SOLOS_ATTR_RW | |
605 | ||
606 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
607 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
608 | ||
609 | static struct attribute *solos_attrs[] = { | |
610 | #include "solos-attrlist.c" | |
611 | NULL | |
612 | }; | |
613 | ||
614 | static struct attribute_group solos_attr_group = { | |
615 | .attrs = solos_attrs, | |
616 | .name = "parameters", | |
617 | }; | |
9c54004e | 618 | |
f9baad02 NW |
619 | static struct attribute *gpio_attrs[] = { |
620 | &gpio_attr_GPIO1.attr.attr, | |
621 | &gpio_attr_GPIO2.attr.attr, | |
622 | &gpio_attr_GPIO3.attr.attr, | |
623 | &gpio_attr_GPIO4.attr.attr, | |
624 | &gpio_attr_GPIO5.attr.attr, | |
625 | &gpio_attr_PushButton.attr.attr, | |
626 | &gpio_attr_HardwareVersion.attr.attr, | |
627 | &gpio_attr_HardwareVariant.attr.attr, | |
628 | NULL | |
629 | }; | |
630 | ||
631 | static struct attribute_group gpio_attr_group = { | |
632 | .attrs = gpio_attrs, | |
633 | .name = "gpio", | |
634 | }; | |
635 | ||
fa755b9f DW |
636 | static int flash_upgrade(struct solos_card *card, int chip) |
637 | { | |
638 | const struct firmware *fw; | |
639 | const char *fw_name; | |
7c4015bd SF |
640 | int blocksize = 0; |
641 | int numblocks = 0; | |
fa755b9f DW |
642 | int offset; |
643 | ||
7adcdb4c AM |
644 | switch (chip) { |
645 | case 0: | |
fa755b9f | 646 | fw_name = "solos-FPGA.bin"; |
13af8164 NW |
647 | if (card->atmel_flash) |
648 | blocksize = ATMEL_FPGA_BLOCK; | |
649 | else | |
650 | blocksize = SPI_FLASH_BLOCK; | |
7adcdb4c AM |
651 | break; |
652 | case 1: | |
fa755b9f | 653 | fw_name = "solos-Firmware.bin"; |
13af8164 NW |
654 | if (card->atmel_flash) |
655 | blocksize = ATMEL_SOLOS_BLOCK; | |
656 | else | |
657 | blocksize = SPI_FLASH_BLOCK; | |
7adcdb4c AM |
658 | break; |
659 | case 2: | |
4dbedf43 NW |
660 | if (card->fpga_version > LEGACY_BUFFERS){ |
661 | fw_name = "solos-db-FPGA.bin"; | |
13af8164 NW |
662 | if (card->atmel_flash) |
663 | blocksize = ATMEL_FPGA_BLOCK; | |
664 | else | |
665 | blocksize = SPI_FLASH_BLOCK; | |
4dbedf43 | 666 | } else { |
7adcdb4c AM |
667 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
668 | " daughter board upgrades\n"); | |
4dbedf43 NW |
669 | return -EPERM; |
670 | } | |
7adcdb4c AM |
671 | break; |
672 | case 3: | |
4dbedf43 NW |
673 | if (card->fpga_version > LEGACY_BUFFERS){ |
674 | fw_name = "solos-Firmware.bin"; | |
13af8164 NW |
675 | if (card->atmel_flash) |
676 | blocksize = ATMEL_SOLOS_BLOCK; | |
677 | else | |
678 | blocksize = SPI_FLASH_BLOCK; | |
4dbedf43 | 679 | } else { |
7adcdb4c AM |
680 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
681 | " daughter board upgrades\n"); | |
682 | return -EPERM; | |
4dbedf43 | 683 | } |
7adcdb4c AM |
684 | break; |
685 | default: | |
686 | return -ENODEV; | |
4dbedf43 | 687 | } |
fa755b9f DW |
688 | |
689 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
690 | return -ENOENT; | |
691 | ||
692 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
693 | ||
13af8164 NW |
694 | /* New FPGAs require driver version before permitting flash upgrades */ |
695 | iowrite32(DRIVER_VERSION, card->config_regs + DRIVER_VER); | |
696 | ||
fa755b9f DW |
697 | numblocks = fw->size / blocksize; |
698 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
699 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
700 | ||
7c4015bd SF |
701 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
702 | iowrite32(1, card->config_regs + FPGA_MODE); | |
06091ed6 | 703 | (void) ioread32(card->config_regs + FPGA_MODE); |
7c4015bd | 704 | |
fa755b9f | 705 | /* Set mode to Chip Erase */ |
4dbedf43 NW |
706 | if(chip == 0 || chip == 2) |
707 | dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); | |
708 | if(chip == 1 || chip == 3) | |
709 | dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); | |
fa755b9f | 710 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); |
7c4015bd | 711 | |
7c4015bd | 712 | |
fa755b9f DW |
713 | iowrite32(1, card->config_regs + WRITE_FLASH); |
714 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
715 | ||
716 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
717 | int i; | |
718 | ||
719 | /* Clear write flag */ | |
7c4015bd | 720 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 721 | |
fa755b9f DW |
722 | /* Set mode to Block Write */ |
723 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
724 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
725 | ||
13af8164 | 726 | /* Copy block to buffer, swapping each 16 bits for Atmel flash */ |
fa755b9f | 727 | for(i = 0; i < blocksize; i += 4) { |
13af8164 NW |
728 | uint32_t word; |
729 | if (card->atmel_flash) | |
730 | word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
731 | else | |
732 | word = *(uint32_t *)(fw->data + offset + i); | |
4dbedf43 NW |
733 | if(card->fpga_version > LEGACY_BUFFERS) |
734 | iowrite32(word, FLASH_BUF + i); | |
735 | else | |
736 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 737 | } |
fa755b9f DW |
738 | |
739 | /* Specify block number and then trigger flash write */ | |
740 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
741 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
742 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
743 | } |
744 | ||
fa755b9f DW |
745 | release_firmware(fw); |
746 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
747 | iowrite32(0, card->config_regs + FPGA_MODE); | |
748 | iowrite32(0, card->config_regs + FLASH_MODE); | |
749 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
750 | return 0; | |
7c4015bd SF |
751 | } |
752 | ||
9c54004e DW |
753 | static irqreturn_t solos_irq(int irq, void *dev_id) |
754 | { | |
755 | struct solos_card *card = dev_id; | |
756 | int handled = 1; | |
757 | ||
9c54004e | 758 | iowrite32(0, card->config_regs + IRQ_CLEAR); |
9c54004e | 759 | |
35c2221b | 760 | /* If we're up and running, just kick the tasklet to process TX/RX */ |
fa755b9f | 761 | if (card->atmdev[0]) |
9c54004e | 762 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
763 | else |
764 | wake_up(&card->fw_wq); | |
9c54004e | 765 | |
9c54004e DW |
766 | return IRQ_RETVAL(handled); |
767 | } | |
768 | ||
5f4d4e3f | 769 | static void solos_bh(unsigned long card_arg) |
9c54004e DW |
770 | { |
771 | struct solos_card *card = (void *)card_arg; | |
9c54004e | 772 | uint32_t card_flags; |
9c54004e | 773 | uint32_t rx_done = 0; |
35c2221b | 774 | int port; |
9c54004e | 775 | |
35c2221b DW |
776 | /* |
777 | * Since fpga_tx() is going to need to read the flags under its lock, | |
778 | * it can return them to us so that we don't have to hit PCI MMIO | |
779 | * again for the same information | |
780 | */ | |
781 | card_flags = fpga_tx(card); | |
9c54004e DW |
782 | |
783 | for (port = 0; port < card->nr_ports; port++) { | |
784 | if (card_flags & (0x10 << port)) { | |
90937231 | 785 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
786 | struct sk_buff *skb; |
787 | struct atm_vcc *vcc; | |
788 | int size; | |
789 | ||
90937231 DW |
790 | if (card->using_dma) { |
791 | skb = card->rx_skb[port]; | |
eaf83e39 | 792 | card->rx_skb[port] = NULL; |
9c54004e | 793 | |
ede58ef2 C |
794 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
795 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
9c54004e | 796 | |
90937231 DW |
797 | header = (void *)skb->data; |
798 | size = le16_to_cpu(header->size); | |
799 | skb_put(skb, size + sizeof(*header)); | |
800 | skb_pull(skb, sizeof(*header)); | |
801 | } else { | |
802 | header = &_hdr; | |
9c54004e | 803 | |
90937231 | 804 | rx_done |= 0x10 << port; |
9c54004e | 805 | |
90937231 | 806 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 807 | |
90937231 | 808 | size = le16_to_cpu(header->size); |
78f857f2 NW |
809 | if (size > (card->buffer_size - sizeof(*header))){ |
810 | dev_warn(&card->dev->dev, "Invalid buffer size\n"); | |
811 | continue; | |
812 | } | |
9c54004e | 813 | |
ce816eb0 DW |
814 | /* Use netdev_alloc_skb() because it adds NET_SKB_PAD of |
815 | * headroom, and ensures we can route packets back out an | |
816 | * Ethernet interface (for example) without having to | |
817 | * reallocate. Adding NET_IP_ALIGN also ensures that both | |
818 | * PPPoATM and PPPoEoBR2684 packets end up aligned. */ | |
819 | skb = netdev_alloc_skb_ip_align(NULL, size + 1); | |
90937231 DW |
820 | if (!skb) { |
821 | if (net_ratelimit()) | |
822 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
823 | continue; | |
824 | } | |
9c54004e | 825 | |
90937231 DW |
826 | memcpy_fromio(skb_put(skb, size), |
827 | RX_BUF(card, port) + sizeof(*header), | |
828 | size); | |
829 | } | |
9c54004e | 830 | if (atmdebug) { |
18b429e7 | 831 | dev_info(&card->dev->dev, "Received: port %d\n", port); |
9c54004e | 832 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
90937231 DW |
833 | size, le16_to_cpu(header->vpi), |
834 | le16_to_cpu(header->vci)); | |
9c54004e DW |
835 | print_buffer(skb); |
836 | } | |
837 | ||
90937231 | 838 | switch (le16_to_cpu(header->type)) { |
9c54004e | 839 | case PKT_DATA: |
90937231 DW |
840 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
841 | le16_to_cpu(header->vci)); | |
9c54004e DW |
842 | if (!vcc) { |
843 | if (net_ratelimit()) | |
1e19e658 PP |
844 | dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n", |
845 | le16_to_cpu(header->vpi), le16_to_cpu(header->vci), | |
9c54004e | 846 | port); |
007ef52b NW |
847 | dev_kfree_skb_any(skb); |
848 | break; | |
9c54004e DW |
849 | } |
850 | atm_charge(vcc, skb->truesize); | |
851 | vcc->push(vcc, skb); | |
852 | atomic_inc(&vcc->stats->rx); | |
853 | break; | |
854 | ||
87ebb186 | 855 | case PKT_STATUS: |
95852f48 DW |
856 | if (process_status(card, port, skb) && |
857 | net_ratelimit()) { | |
858 | dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); | |
859 | print_buffer(skb); | |
860 | } | |
eaf83e39 | 861 | dev_kfree_skb_any(skb); |
87ebb186 DW |
862 | break; |
863 | ||
9c54004e DW |
864 | case PKT_COMMAND: |
865 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
866 | if (process_command(card, port, skb)) |
867 | break; | |
9c54004e DW |
868 | spin_lock(&card->cli_queue_lock); |
869 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
870 | if (net_ratelimit()) | |
871 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
872 | port); | |
eaf83e39 | 873 | dev_kfree_skb_any(skb); |
9c54004e DW |
874 | } else |
875 | skb_queue_tail(&card->cli_queue[port], skb); | |
876 | spin_unlock(&card->cli_queue_lock); | |
877 | break; | |
878 | } | |
879 | } | |
eaf83e39 DW |
880 | /* Allocate RX skbs for any ports which need them */ |
881 | if (card->using_dma && card->atmdev[port] && | |
882 | !card->rx_skb[port]) { | |
ce816eb0 DW |
883 | /* Unlike the MMIO case (qv) we can't add NET_IP_ALIGN |
884 | * here; the FPGA can only DMA to addresses which are | |
885 | * aligned to 4 bytes. */ | |
886 | struct sk_buff *skb = dev_alloc_skb(RX_DMA_SIZE); | |
eaf83e39 DW |
887 | if (skb) { |
888 | SKB_CB(skb)->dma_addr = | |
ede58ef2 C |
889 | dma_map_single(&card->dev->dev, skb->data, |
890 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
eaf83e39 DW |
891 | iowrite32(SKB_CB(skb)->dma_addr, |
892 | card->config_regs + RX_DMA_ADDR(port)); | |
893 | card->rx_skb[port] = skb; | |
894 | } else { | |
895 | if (net_ratelimit()) | |
896 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); | |
897 | ||
898 | /* We'll have to try again later */ | |
899 | tasklet_schedule(&card->tlet); | |
900 | } | |
901 | } | |
9c54004e DW |
902 | } |
903 | if (rx_done) | |
904 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
905 | ||
906 | return; | |
907 | } | |
908 | ||
909 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
910 | { | |
911 | struct hlist_head *head; | |
912 | struct atm_vcc *vcc = NULL; | |
9c54004e DW |
913 | struct sock *s; |
914 | ||
915 | read_lock(&vcc_sklist_lock); | |
916 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
b67bfe0d | 917 | sk_for_each(s, head) { |
9c54004e DW |
918 | vcc = atm_sk(s); |
919 | if (vcc->dev == dev && vcc->vci == vci && | |
1f6ea6e5 DW |
920 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE && |
921 | test_bit(ATM_VF_READY, &vcc->flags)) | |
9c54004e DW |
922 | goto out; |
923 | } | |
924 | vcc = NULL; | |
925 | out: | |
926 | read_unlock(&vcc_sklist_lock); | |
927 | return vcc; | |
928 | } | |
929 | ||
9c54004e DW |
930 | static int popen(struct atm_vcc *vcc) |
931 | { | |
932 | struct solos_card *card = vcc->dev->dev_data; | |
933 | struct sk_buff *skb; | |
934 | struct pkt_hdr *header; | |
935 | ||
b28a4b9a DW |
936 | if (vcc->qos.aal != ATM_AAL5) { |
937 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
938 | vcc->qos.aal); | |
939 | return -EINVAL; | |
940 | } | |
941 | ||
a1db5c5b | 942 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
da1ab3e2 JJ |
943 | if (!skb) { |
944 | if (net_ratelimit()) | |
945 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
9c54004e DW |
946 | return -ENOMEM; |
947 | } | |
948 | header = (void *)skb_put(skb, sizeof(*header)); | |
949 | ||
b76811af | 950 | header->size = cpu_to_le16(0); |
9c54004e DW |
951 | header->vpi = cpu_to_le16(vcc->vpi); |
952 | header->vci = cpu_to_le16(vcc->vci); | |
953 | header->type = cpu_to_le16(PKT_POPEN); | |
954 | ||
955 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
956 | ||
bdc54625 | 957 | set_bit(ATM_VF_ADDR, &vcc->flags); |
9c54004e | 958 | set_bit(ATM_VF_READY, &vcc->flags); |
9c54004e DW |
959 | |
960 | return 0; | |
961 | } | |
962 | ||
963 | static void pclose(struct atm_vcc *vcc) | |
964 | { | |
965 | struct solos_card *card = vcc->dev->dev_data; | |
7ad3eade | 966 | unsigned char port = SOLOS_CHAN(vcc->dev); |
213e85d3 | 967 | struct sk_buff *skb, *tmpskb; |
9c54004e DW |
968 | struct pkt_hdr *header; |
969 | ||
213e85d3 DW |
970 | /* Remove any yet-to-be-transmitted packets from the pending queue */ |
971 | spin_lock(&card->tx_queue_lock); | |
972 | skb_queue_walk_safe(&card->tx_queue[port], skb, tmpskb) { | |
973 | if (SKB_CB(skb)->vcc == vcc) { | |
974 | skb_unlink(skb, &card->tx_queue[port]); | |
975 | solos_pop(vcc, skb); | |
976 | } | |
977 | } | |
978 | spin_unlock(&card->tx_queue_lock); | |
979 | ||
a1db5c5b | 980 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
9c54004e DW |
981 | if (!skb) { |
982 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
983 | return; | |
984 | } | |
985 | header = (void *)skb_put(skb, sizeof(*header)); | |
986 | ||
b76811af | 987 | header->size = cpu_to_le16(0); |
9c54004e DW |
988 | header->vpi = cpu_to_le16(vcc->vpi); |
989 | header->vci = cpu_to_le16(vcc->vci); | |
990 | header->type = cpu_to_le16(PKT_PCLOSE); | |
991 | ||
7ad3eade DW |
992 | skb_get(skb); |
993 | fpga_queue(card, port, skb, NULL); | |
9c54004e | 994 | |
7ad3eade DW |
995 | if (!wait_event_timeout(card->param_wq, !skb_shared(skb), 5 * HZ)) |
996 | dev_warn(&card->dev->dev, | |
997 | "Timeout waiting for VCC close on port %d\n", port); | |
998 | ||
999 | dev_kfree_skb(skb); | |
1000 | ||
1f6ea6e5 DW |
1001 | /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the |
1002 | tasklet has finished processing any incoming packets (and, more to | |
1003 | the point, using the vcc pointer). */ | |
1004 | tasklet_unlock_wait(&card->tlet); | |
213e85d3 DW |
1005 | |
1006 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
1007 | ||
9c54004e DW |
1008 | return; |
1009 | } | |
1010 | ||
1011 | static int print_buffer(struct sk_buff *buf) | |
1012 | { | |
1013 | int len,i; | |
1014 | char msg[500]; | |
1015 | char item[10]; | |
1016 | ||
1017 | len = buf->len; | |
1018 | for (i = 0; i < len; i++){ | |
1019 | if(i % 8 == 0) | |
1020 | sprintf(msg, "%02X: ", i); | |
1021 | ||
1022 | sprintf(item,"%02X ",*(buf->data + i)); | |
1023 | strcat(msg, item); | |
1024 | if(i % 8 == 7) { | |
1025 | sprintf(item, "\n"); | |
1026 | strcat(msg, item); | |
1027 | printk(KERN_DEBUG "%s", msg); | |
1028 | } | |
1029 | } | |
1030 | if (i % 8 != 0) { | |
1031 | sprintf(item, "\n"); | |
1032 | strcat(msg, item); | |
1033 | printk(KERN_DEBUG "%s", msg); | |
1034 | } | |
1035 | printk(KERN_DEBUG "\n"); | |
1036 | ||
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
1041 | struct atm_vcc *vcc) | |
1042 | { | |
1043 | int old_len; | |
f69e4170 | 1044 | unsigned long flags; |
9c54004e | 1045 | |
90937231 | 1046 | SKB_CB(skb)->vcc = vcc; |
9c54004e | 1047 | |
f69e4170 | 1048 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
9c54004e DW |
1049 | old_len = skb_queue_len(&card->tx_queue[port]); |
1050 | skb_queue_tail(&card->tx_queue[port], skb); | |
35c2221b | 1051 | if (!old_len) |
f69e4170 | 1052 | card->tx_mask |= (1 << port); |
f69e4170 | 1053 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); |
9c54004e | 1054 | |
f69e4170 DW |
1055 | /* Theoretically we could just schedule the tasklet here, but |
1056 | that introduces latency we don't want -- it's noticeable */ | |
9c54004e DW |
1057 | if (!old_len) |
1058 | fpga_tx(card); | |
1059 | } | |
1060 | ||
35c2221b | 1061 | static uint32_t fpga_tx(struct solos_card *card) |
9c54004e | 1062 | { |
35c2221b | 1063 | uint32_t tx_pending, card_flags; |
9c54004e DW |
1064 | uint32_t tx_started = 0; |
1065 | struct sk_buff *skb; | |
1066 | struct atm_vcc *vcc; | |
1067 | unsigned char port; | |
1068 | unsigned long flags; | |
1069 | ||
1070 | spin_lock_irqsave(&card->tx_lock, flags); | |
35c2221b DW |
1071 | |
1072 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
1073 | /* | |
1074 | * The queue lock is required for _writing_ to tx_mask, but we're | |
1075 | * OK to read it here without locking. The only potential update | |
1076 | * that we could race with is in fpga_queue() where it sets a bit | |
1077 | * for a new port... but it's going to call this function again if | |
1078 | * it's doing that, anyway. | |
1079 | */ | |
1080 | tx_pending = card->tx_mask & ~card_flags; | |
1081 | ||
1082 | for (port = 0; tx_pending; tx_pending >>= 1, port++) { | |
1083 | if (tx_pending & 1) { | |
eaf83e39 | 1084 | struct sk_buff *oldskb = card->tx_skb[port]; |
cae49ede | 1085 | if (oldskb) { |
ede58ef2 C |
1086 | dma_unmap_single(&card->dev->dev, SKB_CB(oldskb)->dma_addr, |
1087 | oldskb->len, DMA_TO_DEVICE); | |
cae49ede DW |
1088 | card->tx_skb[port] = NULL; |
1089 | } | |
9c54004e DW |
1090 | spin_lock(&card->tx_queue_lock); |
1091 | skb = skb_dequeue(&card->tx_queue[port]); | |
f69e4170 DW |
1092 | if (!skb) |
1093 | card->tx_mask &= ~(1 << port); | |
9c54004e DW |
1094 | spin_unlock(&card->tx_queue_lock); |
1095 | ||
eaf83e39 DW |
1096 | if (skb && !card->using_dma) { |
1097 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
bdc54625 | 1098 | tx_started |= 1 << port; |
eaf83e39 DW |
1099 | oldskb = skb; /* We're done with this skb already */ |
1100 | } else if (skb && card->using_dma) { | |
152a2a8b DW |
1101 | unsigned char *data = skb->data; |
1102 | if ((unsigned long)data & card->dma_alignment) { | |
1103 | data = card->dma_bounce + (BUF_SIZE * port); | |
1104 | memcpy(data, skb->data, skb->len); | |
1105 | } | |
ede58ef2 C |
1106 | SKB_CB(skb)->dma_addr = dma_map_single(&card->dev->dev, data, |
1107 | skb->len, DMA_TO_DEVICE); | |
b4bd8ad9 | 1108 | card->tx_skb[port] = skb; |
eaf83e39 DW |
1109 | iowrite32(SKB_CB(skb)->dma_addr, |
1110 | card->config_regs + TX_DMA_ADDR(port)); | |
1111 | } | |
1112 | ||
1113 | if (!oldskb) | |
9c54004e DW |
1114 | continue; |
1115 | ||
eaf83e39 | 1116 | /* Clean up and free oldskb now it's gone */ |
9c54004e | 1117 | if (atmdebug) { |
18b429e7 PP |
1118 | struct pkt_hdr *header = (void *)oldskb->data; |
1119 | int size = le16_to_cpu(header->size); | |
1120 | ||
1121 | skb_pull(oldskb, sizeof(*header)); | |
9c54004e DW |
1122 | dev_info(&card->dev->dev, "Transmitted: port %d\n", |
1123 | port); | |
18b429e7 PP |
1124 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
1125 | size, le16_to_cpu(header->vpi), | |
1126 | le16_to_cpu(header->vci)); | |
eaf83e39 | 1127 | print_buffer(oldskb); |
9c54004e | 1128 | } |
9c54004e | 1129 | |
eaf83e39 | 1130 | vcc = SKB_CB(oldskb)->vcc; |
9c54004e DW |
1131 | |
1132 | if (vcc) { | |
1133 | atomic_inc(&vcc->stats->tx); | |
eaf83e39 | 1134 | solos_pop(vcc, oldskb); |
7ad3eade | 1135 | } else { |
eaf83e39 | 1136 | dev_kfree_skb_irq(oldskb); |
7ad3eade DW |
1137 | wake_up(&card->param_wq); |
1138 | } | |
9c54004e DW |
1139 | } |
1140 | } | |
bdc54625 | 1141 | /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ |
9c54004e DW |
1142 | if (tx_started) |
1143 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
1144 | ||
1145 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
35c2221b | 1146 | return card_flags; |
9c54004e DW |
1147 | } |
1148 | ||
1149 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
1150 | { | |
1151 | struct solos_card *card = vcc->dev->dev_data; | |
9c54004e | 1152 | struct pkt_hdr *header; |
b76811af | 1153 | int pktlen; |
9c54004e | 1154 | |
b76811af DW |
1155 | pktlen = skb->len; |
1156 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
1157 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
1158 | solos_pop(vcc, skb); | |
1159 | return 0; | |
1160 | } | |
1161 | ||
1162 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
1163 | int expand_by = 0; | |
1164 | int ret; | |
1165 | ||
1166 | if (skb_headroom(skb) < sizeof(*header)) | |
1167 | expand_by = sizeof(*header) - skb_headroom(skb); | |
1168 | ||
1169 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
1170 | if (ret) { | |
4306cad6 | 1171 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
1172 | solos_pop(vcc, skb); |
1173 | return ret; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | header = (void *)skb_push(skb, sizeof(*header)); | |
1178 | ||
b76811af DW |
1179 | /* This does _not_ include the size of the header */ |
1180 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1181 | header->vpi = cpu_to_le16(vcc->vpi); |
1182 | header->vci = cpu_to_le16(vcc->vci); | |
1183 | header->type = cpu_to_le16(PKT_DATA); | |
1184 | ||
1185 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | static struct atmdev_ops fpga_ops = { | |
1191 | .open = popen, | |
1192 | .close = pclose, | |
1193 | .ioctl = NULL, | |
1194 | .getsockopt = NULL, | |
1195 | .setsockopt = NULL, | |
1196 | .send = psend, | |
1197 | .send_oam = NULL, | |
1198 | .phy_put = NULL, | |
1199 | .phy_get = NULL, | |
1200 | .change_qos = NULL, | |
1201 | .proc_read = NULL, | |
1202 | .owner = THIS_MODULE | |
1203 | }; | |
1204 | ||
1205 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1206 | { | |
cd5549e0 | 1207 | int err; |
9c54004e DW |
1208 | uint16_t fpga_ver; |
1209 | uint8_t major_ver, minor_ver; | |
1210 | uint32_t data32; | |
1211 | struct solos_card *card; | |
1212 | ||
9c54004e DW |
1213 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1214 | if (!card) | |
1215 | return -ENOMEM; | |
1216 | ||
1217 | card->dev = dev; | |
fa755b9f | 1218 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1219 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1220 | |
1221 | err = pci_enable_device(dev); | |
1222 | if (err) { | |
1223 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1224 | goto out; | |
1225 | } | |
1226 | ||
ede58ef2 | 1227 | err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); |
90937231 DW |
1228 | if (err) { |
1229 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1230 | goto out; | |
1231 | } | |
1232 | ||
9c54004e DW |
1233 | err = pci_request_regions(dev, "solos"); |
1234 | if (err) { | |
1235 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1236 | goto out; | |
1237 | } | |
1238 | ||
1239 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1240 | if (!card->config_regs) { | |
1241 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
73112f9b | 1242 | err = -ENOMEM; |
9c54004e DW |
1243 | goto out_release_regions; |
1244 | } | |
1245 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1246 | if (!card->buffers) { | |
1247 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
73112f9b | 1248 | err = -ENOMEM; |
9c54004e DW |
1249 | goto out_unmap_config; |
1250 | } | |
1251 | ||
cc3657e1 DW |
1252 | if (reset) { |
1253 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1254 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
9c54004e | 1255 | |
cc3657e1 DW |
1256 | iowrite32(0, card->config_regs + FPGA_MODE); |
1257 | data32 = ioread32(card->config_regs + FPGA_MODE); | |
1258 | } | |
9c54004e DW |
1259 | |
1260 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1261 | fpga_ver = (data32 & 0x0000FFFF); | |
1262 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1263 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
4dbedf43 NW |
1264 | card->fpga_version = FPGA_VERSION(major_ver,minor_ver); |
1265 | if (card->fpga_version > LEGACY_BUFFERS) | |
1266 | card->buffer_size = BUF_SIZE; | |
1267 | else | |
1268 | card->buffer_size = OLD_BUF_SIZE; | |
9c54004e DW |
1269 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", |
1270 | major_ver, minor_ver, fpga_ver); | |
1271 | ||
3ce1227c DW |
1272 | if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade || |
1273 | db_fpga_upgrade || db_firmware_upgrade)) { | |
1274 | dev_warn(&dev->dev, | |
1275 | "FPGA too old; cannot upgrade flash. Use JTAG.\n"); | |
1276 | fpga_upgrade = firmware_upgrade = 0; | |
1277 | db_fpga_upgrade = db_firmware_upgrade = 0; | |
1278 | } | |
1279 | ||
13af8164 NW |
1280 | /* Stopped using Atmel flash after 0.03-38 */ |
1281 | if (fpga_ver < 39) | |
1282 | card->atmel_flash = 1; | |
1283 | else | |
1284 | card->atmel_flash = 0; | |
1285 | ||
152a2a8b DW |
1286 | data32 = ioread32(card->config_regs + PORTS); |
1287 | card->nr_ports = (data32 & 0x000000FF); | |
1288 | ||
b4bd8ad9 DW |
1289 | if (card->fpga_version >= DMA_SUPPORTED) { |
1290 | pci_set_master(dev); | |
90937231 | 1291 | card->using_dma = 1; |
152a2a8b DW |
1292 | if (1) { /* All known FPGA versions so far */ |
1293 | card->dma_alignment = 3; | |
1294 | card->dma_bounce = kmalloc(card->nr_ports * BUF_SIZE, GFP_KERNEL); | |
1295 | if (!card->dma_bounce) { | |
1296 | dev_warn(&card->dev->dev, "Failed to allocate DMA bounce buffers\n"); | |
c7bcae46 | 1297 | err = -ENOMEM; |
152a2a8b DW |
1298 | /* Fallback to MMIO doesn't work */ |
1299 | goto out_unmap_both; | |
1300 | } | |
1301 | } | |
4dbedf43 NW |
1302 | } else { |
1303 | card->using_dma = 0; | |
eab50f73 DW |
1304 | /* Set RX empty flag for all ports */ |
1305 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1306 | } | |
9c54004e | 1307 | |
9c54004e | 1308 | pci_set_drvdata(dev, card); |
fa755b9f | 1309 | |
9c54004e DW |
1310 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1311 | spin_lock_init(&card->tx_lock); | |
1312 | spin_lock_init(&card->tx_queue_lock); | |
1313 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1314 | spin_lock_init(&card->param_queue_lock); |
1315 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1316 | |
fcd82664 | 1317 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
9c54004e | 1318 | "solos-pci", card); |
fa755b9f | 1319 | if (err) { |
9c54004e | 1320 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1321 | goto out_unmap_both; |
1322 | } | |
9c54004e | 1323 | |
9c54004e DW |
1324 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); |
1325 | ||
fa755b9f DW |
1326 | if (fpga_upgrade) |
1327 | flash_upgrade(card, 0); | |
1328 | ||
1329 | if (firmware_upgrade) | |
1330 | flash_upgrade(card, 1); | |
1331 | ||
4dbedf43 NW |
1332 | if (db_fpga_upgrade) |
1333 | flash_upgrade(card, 2); | |
1334 | ||
1335 | if (db_firmware_upgrade) | |
1336 | flash_upgrade(card, 3); | |
1337 | ||
d9ca676b | 1338 | err = atm_init(card, &dev->dev); |
fa755b9f DW |
1339 | if (err) |
1340 | goto out_free_irq; | |
1341 | ||
f9baad02 NW |
1342 | if (card->fpga_version >= DMA_SUPPORTED && |
1343 | sysfs_create_group(&card->dev->dev.kobj, &gpio_attr_group)) | |
1344 | dev_err(&card->dev->dev, "Could not register parameter group for GPIOs\n"); | |
1345 | ||
9c54004e DW |
1346 | return 0; |
1347 | ||
fa755b9f DW |
1348 | out_free_irq: |
1349 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1350 | free_irq(dev->irq, card); | |
1351 | tasklet_kill(&card->tlet); | |
1352 | ||
9c54004e | 1353 | out_unmap_both: |
152a2a8b | 1354 | kfree(card->dma_bounce); |
9c54004e | 1355 | pci_iounmap(dev, card->buffers); |
8ae0cfee JL |
1356 | out_unmap_config: |
1357 | pci_iounmap(dev, card->config_regs); | |
9c54004e DW |
1358 | out_release_regions: |
1359 | pci_release_regions(dev); | |
1360 | out: | |
bc111d57 | 1361 | kfree(card); |
9c54004e DW |
1362 | return err; |
1363 | } | |
1364 | ||
d9ca676b | 1365 | static int atm_init(struct solos_card *card, struct device *parent) |
9c54004e DW |
1366 | { |
1367 | int i; | |
1368 | ||
9c54004e | 1369 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1370 | struct sk_buff *skb; |
1371 | struct pkt_hdr *header; | |
1372 | ||
9c54004e DW |
1373 | skb_queue_head_init(&card->tx_queue[i]); |
1374 | skb_queue_head_init(&card->cli_queue[i]); | |
1375 | ||
d9ca676b | 1376 | card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL); |
9c54004e DW |
1377 | if (!card->atmdev[i]) { |
1378 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1379 | atm_remove(card); | |
1380 | return -ENODEV; | |
1381 | } | |
1382 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1383 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1384 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1385 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1386 | |
1387 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1388 | ||
1389 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1390 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1391 | card->atmdev[i]->dev_data = card; | |
1392 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
c031235b | 1393 | atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND); |
87ebb186 | 1394 | |
a1db5c5b | 1395 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
87ebb186 DW |
1396 | if (!skb) { |
1397 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1398 | continue; | |
1399 | } | |
1400 | ||
1401 | header = (void *)skb_put(skb, sizeof(*header)); | |
1402 | ||
1403 | header->size = cpu_to_le16(0); | |
1404 | header->vpi = cpu_to_le16(0); | |
1405 | header->vci = cpu_to_le16(0); | |
1406 | header->type = cpu_to_le16(PKT_STATUS); | |
1407 | ||
1408 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1409 | } |
1410 | return 0; | |
1411 | } | |
1412 | ||
1413 | static void atm_remove(struct solos_card *card) | |
1414 | { | |
1415 | int i; | |
1416 | ||
1417 | for (i = 0; i < card->nr_ports; i++) { | |
1418 | if (card->atmdev[i]) { | |
97d759d3 DW |
1419 | struct sk_buff *skb; |
1420 | ||
9c54004e | 1421 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); |
c0fe3026 DW |
1422 | |
1423 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e | 1424 | atm_dev_deregister(card->atmdev[i]); |
97d759d3 DW |
1425 | |
1426 | skb = card->rx_skb[i]; | |
1427 | if (skb) { | |
ede58ef2 C |
1428 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
1429 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
97d759d3 DW |
1430 | dev_kfree_skb(skb); |
1431 | } | |
1432 | skb = card->tx_skb[i]; | |
1433 | if (skb) { | |
ede58ef2 C |
1434 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
1435 | skb->len, DMA_TO_DEVICE); | |
97d759d3 DW |
1436 | dev_kfree_skb(skb); |
1437 | } | |
1438 | while ((skb = skb_dequeue(&card->tx_queue[i]))) | |
1439 | dev_kfree_skb(skb); | |
1440 | ||
9c54004e DW |
1441 | } |
1442 | } | |
1443 | } | |
1444 | ||
1445 | static void fpga_remove(struct pci_dev *dev) | |
1446 | { | |
1447 | struct solos_card *card = pci_get_drvdata(dev); | |
97d759d3 DW |
1448 | |
1449 | /* Disable IRQs */ | |
1450 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
9c54004e | 1451 | |
97d759d3 DW |
1452 | /* Reset FPGA */ |
1453 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1454 | (void)ioread32(card->config_regs + FPGA_MODE); | |
9c54004e | 1455 | |
f9baad02 NW |
1456 | if (card->fpga_version >= DMA_SUPPORTED) |
1457 | sysfs_remove_group(&card->dev->dev.kobj, &gpio_attr_group); | |
1458 | ||
9c54004e DW |
1459 | atm_remove(card); |
1460 | ||
9c54004e DW |
1461 | free_irq(dev->irq, card); |
1462 | tasklet_kill(&card->tlet); | |
1463 | ||
152a2a8b DW |
1464 | kfree(card->dma_bounce); |
1465 | ||
97d759d3 DW |
1466 | /* Release device from reset */ |
1467 | iowrite32(0, card->config_regs + FPGA_MODE); | |
1468 | (void)ioread32(card->config_regs + FPGA_MODE); | |
1469 | ||
9c54004e DW |
1470 | pci_iounmap(dev, card->buffers); |
1471 | pci_iounmap(dev, card->config_regs); | |
1472 | ||
9c54004e DW |
1473 | pci_release_regions(dev); |
1474 | pci_disable_device(dev); | |
1475 | ||
9c54004e | 1476 | kfree(card); |
9c54004e DW |
1477 | } |
1478 | ||
6c44512d | 1479 | static struct pci_device_id fpga_pci_tbl[] = { |
9c54004e DW |
1480 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
1481 | { 0, } | |
1482 | }; | |
1483 | ||
1484 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1485 | ||
1486 | static struct pci_driver fpga_driver = { | |
1487 | .name = "solos", | |
1488 | .id_table = fpga_pci_tbl, | |
1489 | .probe = fpga_probe, | |
1490 | .remove = fpga_remove, | |
1491 | }; | |
1492 | ||
1493 | ||
1494 | static int __init solos_pci_init(void) | |
1495 | { | |
7ad3eade DW |
1496 | BUILD_BUG_ON(sizeof(struct solos_skb_cb) > sizeof(((struct sk_buff *)0)->cb)); |
1497 | ||
9c54004e DW |
1498 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); |
1499 | return pci_register_driver(&fpga_driver); | |
1500 | } | |
1501 | ||
1502 | static void __exit solos_pci_exit(void) | |
1503 | { | |
1504 | pci_unregister_driver(&fpga_driver); | |
1505 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1506 | } | |
1507 | ||
1508 | module_init(solos_pci_init); | |
1509 | module_exit(solos_pci_exit); |