Commit | Line | Data |
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1802d0be | 1 | // SPDX-License-Identifier: GPL-2.0-only |
9c54004e DW |
2 | /* |
3 | * Driver for the Solos PCI ADSL2+ card, designed to support Linux by | |
ed757328 | 4 | * Traverse Technologies -- https://www.traverse.com.au/ |
9c54004e DW |
5 | * Xrio Limited -- http://www.xrio.com/ |
6 | * | |
9c54004e DW |
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 | ||
15 | #define DEBUG | |
16 | #define VERBOSE_DEBUG | |
17 | ||
18 | #include <linux/interrupt.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/errno.h> | |
22 | #include <linux/ioport.h> | |
23 | #include <linux/types.h> | |
24 | #include <linux/pci.h> | |
25 | #include <linux/atm.h> | |
26 | #include <linux/atmdev.h> | |
27 | #include <linux/skbuff.h> | |
28 | #include <linux/sysfs.h> | |
29 | #include <linux/device.h> | |
30 | #include <linux/kobject.h> | |
7c4015bd | 31 | #include <linux/firmware.h> |
01e2ffac DW |
32 | #include <linux/ctype.h> |
33 | #include <linux/swab.h> | |
5a0e3ad6 | 34 | #include <linux/slab.h> |
9c54004e | 35 | |
13af8164 NW |
36 | #define VERSION "1.04" |
37 | #define DRIVER_VERSION 0x01 | |
9c54004e DW |
38 | #define PTAG "solos-pci" |
39 | ||
40 | #define CONFIG_RAM_SIZE 128 | |
41 | #define FLAGS_ADDR 0x7C | |
42 | #define IRQ_EN_ADDR 0x78 | |
43 | #define FPGA_VER 0x74 | |
44 | #define IRQ_CLEAR 0x70 | |
7c4015bd SF |
45 | #define WRITE_FLASH 0x6C |
46 | #define PORTS 0x68 | |
47 | #define FLASH_BLOCK 0x64 | |
48 | #define FLASH_BUSY 0x60 | |
49 | #define FPGA_MODE 0x5C | |
50 | #define FLASH_MODE 0x58 | |
f9baad02 | 51 | #define GPIO_STATUS 0x54 |
13af8164 | 52 | #define DRIVER_VER 0x50 |
90937231 DW |
53 | #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) |
54 | #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) | |
9c54004e DW |
55 | |
56 | #define DATA_RAM_SIZE 32768 | |
4dbedf43 NW |
57 | #define BUF_SIZE 2048 |
58 | #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/ | |
13af8164 NW |
59 | /* Old boards use ATMEL AD45DB161D flash */ |
60 | #define ATMEL_FPGA_PAGE 528 /* FPGA flash page size*/ | |
61 | #define ATMEL_SOLOS_PAGE 512 /* Solos flash page size*/ | |
62 | #define ATMEL_FPGA_BLOCK (ATMEL_FPGA_PAGE * 8) /* FPGA block size*/ | |
63 | #define ATMEL_SOLOS_BLOCK (ATMEL_SOLOS_PAGE * 8) /* Solos block size*/ | |
64 | /* Current boards use M25P/M25PE SPI flash */ | |
65 | #define SPI_FLASH_BLOCK (256 * 64) | |
9c54004e | 66 | |
4dbedf43 NW |
67 | #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2) |
68 | #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size)) | |
69 | #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2) | |
9c54004e | 70 | |
eaf83e39 DW |
71 | #define RX_DMA_SIZE 2048 |
72 | ||
4dbedf43 NW |
73 | #define FPGA_VERSION(a,b) (((a) << 8) + (b)) |
74 | #define LEGACY_BUFFERS 2 | |
75 | #define DMA_SUPPORTED 4 | |
76 | ||
cc3657e1 | 77 | static int reset = 0; |
9c54004e | 78 | static int atmdebug = 0; |
7c4015bd SF |
79 | static int firmware_upgrade = 0; |
80 | static int fpga_upgrade = 0; | |
4dbedf43 NW |
81 | static int db_firmware_upgrade = 0; |
82 | static int db_fpga_upgrade = 0; | |
9c54004e DW |
83 | |
84 | struct pkt_hdr { | |
85 | __le16 size; | |
86 | __le16 vpi; | |
87 | __le16 vci; | |
88 | __le16 type; | |
89 | }; | |
90 | ||
90937231 DW |
91 | struct solos_skb_cb { |
92 | struct atm_vcc *vcc; | |
93 | uint32_t dma_addr; | |
94 | }; | |
95 | ||
96 | ||
97 | #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) | |
98 | ||
9c54004e DW |
99 | #define PKT_DATA 0 |
100 | #define PKT_COMMAND 1 | |
101 | #define PKT_POPEN 3 | |
102 | #define PKT_PCLOSE 4 | |
87ebb186 | 103 | #define PKT_STATUS 5 |
9c54004e DW |
104 | |
105 | struct solos_card { | |
106 | void __iomem *config_regs; | |
107 | void __iomem *buffers; | |
108 | int nr_ports; | |
f69e4170 | 109 | int tx_mask; |
9c54004e DW |
110 | struct pci_dev *dev; |
111 | struct atm_dev *atmdev[4]; | |
112 | struct tasklet_struct tlet; | |
113 | spinlock_t tx_lock; | |
114 | spinlock_t tx_queue_lock; | |
115 | spinlock_t cli_queue_lock; | |
01e2ffac DW |
116 | spinlock_t param_queue_lock; |
117 | struct list_head param_queue; | |
9c54004e DW |
118 | struct sk_buff_head tx_queue[4]; |
119 | struct sk_buff_head cli_queue[4]; | |
90937231 DW |
120 | struct sk_buff *tx_skb[4]; |
121 | struct sk_buff *rx_skb[4]; | |
152a2a8b | 122 | unsigned char *dma_bounce; |
01e2ffac | 123 | wait_queue_head_t param_wq; |
fa755b9f | 124 | wait_queue_head_t fw_wq; |
90937231 | 125 | int using_dma; |
152a2a8b | 126 | int dma_alignment; |
4dbedf43 NW |
127 | int fpga_version; |
128 | int buffer_size; | |
13af8164 | 129 | int atmel_flash; |
9c54004e DW |
130 | }; |
131 | ||
01e2ffac DW |
132 | |
133 | struct solos_param { | |
134 | struct list_head list; | |
135 | pid_t pid; | |
136 | int port; | |
137 | struct sk_buff *response; | |
9c54004e DW |
138 | }; |
139 | ||
140 | #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data) | |
141 | ||
142 | MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>"); | |
143 | MODULE_DESCRIPTION("Solos PCI driver"); | |
144 | MODULE_VERSION(VERSION); | |
145 | MODULE_LICENSE("GPL"); | |
9fca79d6 BH |
146 | MODULE_FIRMWARE("solos-FPGA.bin"); |
147 | MODULE_FIRMWARE("solos-Firmware.bin"); | |
148 | MODULE_FIRMWARE("solos-db-FPGA.bin"); | |
cc3657e1 | 149 | MODULE_PARM_DESC(reset, "Reset Solos chips on startup"); |
9c54004e | 150 | MODULE_PARM_DESC(atmdebug, "Print ATM data"); |
7c4015bd SF |
151 | MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); |
152 | MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); | |
4dbedf43 NW |
153 | MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade"); |
154 | MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade"); | |
cc3657e1 | 155 | module_param(reset, int, 0444); |
4306cad6 | 156 | module_param(atmdebug, int, 0644); |
7c4015bd SF |
157 | module_param(firmware_upgrade, int, 0444); |
158 | module_param(fpga_upgrade, int, 0444); | |
4dbedf43 NW |
159 | module_param(db_firmware_upgrade, int, 0444); |
160 | module_param(db_fpga_upgrade, int, 0444); | |
9c54004e DW |
161 | |
162 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
163 | struct atm_vcc *vcc); | |
35c2221b | 164 | static uint32_t fpga_tx(struct solos_card *); |
9c54004e DW |
165 | static irqreturn_t solos_irq(int irq, void *dev_id); |
166 | static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); | |
d9ca676b | 167 | static int atm_init(struct solos_card *, struct device *); |
9c54004e DW |
168 | static void atm_remove(struct solos_card *); |
169 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); | |
170 | static void solos_bh(unsigned long); | |
171 | static int print_buffer(struct sk_buff *buf); | |
172 | ||
173 | static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) | |
174 | { | |
175 | if (vcc->pop) | |
176 | vcc->pop(vcc, skb); | |
177 | else | |
178 | dev_kfree_skb_any(skb); | |
179 | } | |
180 | ||
01e2ffac DW |
181 | static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, |
182 | char *buf) | |
183 | { | |
184 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
185 | struct solos_card *card = atmdev->dev_data; | |
186 | struct solos_param prm; | |
187 | struct sk_buff *skb; | |
188 | struct pkt_hdr *header; | |
189 | int buflen; | |
190 | ||
191 | buflen = strlen(attr->attr.name) + 10; | |
192 | ||
3456b221 | 193 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
194 | if (!skb) { |
195 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); | |
196 | return -ENOMEM; | |
197 | } | |
198 | ||
4df864c1 | 199 | header = skb_put(skb, sizeof(*header)); |
01e2ffac DW |
200 | |
201 | buflen = snprintf((void *)&header[1], buflen - 1, | |
202 | "L%05d\n%s\n", current->pid, attr->attr.name); | |
203 | skb_put(skb, buflen); | |
204 | ||
205 | header->size = cpu_to_le16(buflen); | |
206 | header->vpi = cpu_to_le16(0); | |
207 | header->vci = cpu_to_le16(0); | |
208 | header->type = cpu_to_le16(PKT_COMMAND); | |
209 | ||
210 | prm.pid = current->pid; | |
211 | prm.response = NULL; | |
212 | prm.port = SOLOS_CHAN(atmdev); | |
213 | ||
214 | spin_lock_irq(&card->param_queue_lock); | |
215 | list_add(&prm.list, &card->param_queue); | |
216 | spin_unlock_irq(&card->param_queue_lock); | |
217 | ||
218 | fpga_queue(card, prm.port, skb, NULL); | |
219 | ||
220 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
221 | ||
222 | spin_lock_irq(&card->param_queue_lock); | |
223 | list_del(&prm.list); | |
224 | spin_unlock_irq(&card->param_queue_lock); | |
225 | ||
226 | if (!prm.response) | |
227 | return -EIO; | |
228 | ||
229 | buflen = prm.response->len; | |
230 | memcpy(buf, prm.response->data, buflen); | |
231 | kfree_skb(prm.response); | |
232 | ||
233 | return buflen; | |
234 | } | |
235 | ||
236 | static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, | |
237 | const char *buf, size_t count) | |
238 | { | |
239 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
240 | struct solos_card *card = atmdev->dev_data; | |
241 | struct solos_param prm; | |
242 | struct sk_buff *skb; | |
243 | struct pkt_hdr *header; | |
244 | int buflen; | |
245 | ssize_t ret; | |
246 | ||
247 | buflen = strlen(attr->attr.name) + 11 + count; | |
248 | ||
3456b221 | 249 | skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); |
01e2ffac DW |
250 | if (!skb) { |
251 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); | |
252 | return -ENOMEM; | |
253 | } | |
254 | ||
4df864c1 | 255 | header = skb_put(skb, sizeof(*header)); |
01e2ffac DW |
256 | |
257 | buflen = snprintf((void *)&header[1], buflen - 1, | |
258 | "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); | |
259 | ||
260 | skb_put(skb, buflen); | |
261 | header->size = cpu_to_le16(buflen); | |
262 | header->vpi = cpu_to_le16(0); | |
263 | header->vci = cpu_to_le16(0); | |
264 | header->type = cpu_to_le16(PKT_COMMAND); | |
265 | ||
266 | prm.pid = current->pid; | |
267 | prm.response = NULL; | |
268 | prm.port = SOLOS_CHAN(atmdev); | |
269 | ||
270 | spin_lock_irq(&card->param_queue_lock); | |
271 | list_add(&prm.list, &card->param_queue); | |
272 | spin_unlock_irq(&card->param_queue_lock); | |
273 | ||
274 | fpga_queue(card, prm.port, skb, NULL); | |
275 | ||
276 | wait_event_timeout(card->param_wq, prm.response, 5 * HZ); | |
277 | ||
278 | spin_lock_irq(&card->param_queue_lock); | |
279 | list_del(&prm.list); | |
280 | spin_unlock_irq(&card->param_queue_lock); | |
281 | ||
282 | skb = prm.response; | |
283 | ||
284 | if (!skb) | |
285 | return -EIO; | |
286 | ||
287 | buflen = skb->len; | |
288 | ||
289 | /* Sometimes it has a newline, sometimes it doesn't. */ | |
290 | if (skb->data[buflen - 1] == '\n') | |
291 | buflen--; | |
292 | ||
293 | if (buflen == 2 && !strncmp(skb->data, "OK", 2)) | |
294 | ret = count; | |
295 | else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) | |
296 | ret = -EIO; | |
297 | else { | |
298 | /* We know we have enough space allocated for this; we allocated | |
299 | it ourselves */ | |
300 | skb->data[buflen] = 0; | |
301 | ||
302 | dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", | |
303 | skb->data); | |
304 | ret = -EIO; | |
305 | } | |
306 | kfree_skb(skb); | |
307 | ||
308 | return ret; | |
309 | } | |
310 | ||
87ebb186 DW |
311 | static char *next_string(struct sk_buff *skb) |
312 | { | |
313 | int i = 0; | |
314 | char *this = skb->data; | |
c6428e52 DW |
315 | |
316 | for (i = 0; i < skb->len; i++) { | |
87ebb186 DW |
317 | if (this[i] == '\n') { |
318 | this[i] = 0; | |
c6428e52 | 319 | skb_pull(skb, i + 1); |
87ebb186 DW |
320 | return this; |
321 | } | |
c6428e52 DW |
322 | if (!isprint(this[i])) |
323 | return NULL; | |
87ebb186 DW |
324 | } |
325 | return NULL; | |
326 | } | |
327 | ||
328 | /* | |
329 | * Status packet has fields separated by \n, starting with a version number | |
330 | * for the information therein. Fields are.... | |
331 | * | |
332 | * packet version | |
87ebb186 | 333 | * RxBitRate (version >= 1) |
f87b2ed2 | 334 | * TxBitRate (version >= 1) |
87ebb186 | 335 | * State (version >= 1) |
f87b2ed2 DW |
336 | * LocalSNRMargin (version >= 1) |
337 | * LocalLineAttn (version >= 1) | |
87ebb186 DW |
338 | */ |
339 | static int process_status(struct solos_card *card, int port, struct sk_buff *skb) | |
340 | { | |
e94d91a6 LC |
341 | char *str, *state_str, *snr, *attn; |
342 | int ver, rate_up, rate_down, err; | |
87ebb186 DW |
343 | |
344 | if (!card->atmdev[port]) | |
345 | return -ENODEV; | |
346 | ||
347 | str = next_string(skb); | |
348 | if (!str) | |
349 | return -EIO; | |
350 | ||
e94d91a6 LC |
351 | err = kstrtoint(str, 10, &ver); |
352 | if (err) { | |
353 | dev_warn(&card->dev->dev, "Unexpected status interrupt version\n"); | |
354 | return err; | |
355 | } | |
87ebb186 DW |
356 | if (ver < 1) { |
357 | dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", | |
358 | ver); | |
359 | return -EIO; | |
360 | } | |
361 | ||
362 | str = next_string(skb); | |
c6428e52 DW |
363 | if (!str) |
364 | return -EIO; | |
95852f48 DW |
365 | if (!strcmp(str, "ERROR")) { |
366 | dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n", | |
367 | port); | |
368 | return 0; | |
369 | } | |
370 | ||
e94d91a6 LC |
371 | err = kstrtoint(str, 10, &rate_down); |
372 | if (err) | |
373 | return err; | |
87ebb186 DW |
374 | |
375 | str = next_string(skb); | |
c6428e52 DW |
376 | if (!str) |
377 | return -EIO; | |
e94d91a6 LC |
378 | err = kstrtoint(str, 10, &rate_up); |
379 | if (err) | |
380 | return err; | |
87ebb186 | 381 | |
af780656 | 382 | state_str = next_string(skb); |
c6428e52 DW |
383 | if (!state_str) |
384 | return -EIO; | |
f87b2ed2 DW |
385 | |
386 | /* Anything but 'Showtime' is down */ | |
387 | if (strcmp(state_str, "Showtime")) { | |
49d49106 | 388 | atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST); |
f87b2ed2 DW |
389 | dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str); |
390 | return 0; | |
1e615df6 | 391 | } |
87ebb186 | 392 | |
f87b2ed2 | 393 | snr = next_string(skb); |
6cf5767c | 394 | if (!snr) |
f87b2ed2 DW |
395 | return -EIO; |
396 | attn = next_string(skb); | |
397 | if (!attn) | |
398 | return -EIO; | |
399 | ||
400 | dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n", | |
401 | port, state_str, rate_down/1000, rate_up/1000, | |
402 | snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn); | |
403 | ||
c6428e52 | 404 | card->atmdev[port]->link_rate = rate_down / 424; |
49d49106 | 405 | atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND); |
87ebb186 | 406 | |
87ebb186 DW |
407 | return 0; |
408 | } | |
409 | ||
01e2ffac DW |
410 | static int process_command(struct solos_card *card, int port, struct sk_buff *skb) |
411 | { | |
412 | struct solos_param *prm; | |
413 | unsigned long flags; | |
414 | int cmdpid; | |
e94d91a6 | 415 | int found = 0, err; |
01e2ffac DW |
416 | |
417 | if (skb->len < 7) | |
418 | return 0; | |
419 | ||
420 | if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || | |
421 | !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || | |
422 | !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || | |
423 | skb->data[6] != '\n') | |
424 | return 0; | |
425 | ||
e94d91a6 LC |
426 | err = kstrtoint(&skb->data[1], 10, &cmdpid); |
427 | if (err) | |
428 | return err; | |
01e2ffac DW |
429 | |
430 | spin_lock_irqsave(&card->param_queue_lock, flags); | |
431 | list_for_each_entry(prm, &card->param_queue, list) { | |
432 | if (prm->port == port && prm->pid == cmdpid) { | |
433 | prm->response = skb; | |
434 | skb_pull(skb, 7); | |
435 | wake_up(&card->param_wq); | |
436 | found = 1; | |
437 | break; | |
438 | } | |
439 | } | |
440 | spin_unlock_irqrestore(&card->param_queue_lock, flags); | |
441 | return found; | |
442 | } | |
443 | ||
9c54004e DW |
444 | static ssize_t console_show(struct device *dev, struct device_attribute *attr, |
445 | char *buf) | |
446 | { | |
447 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
448 | struct solos_card *card = atmdev->dev_data; | |
449 | struct sk_buff *skb; | |
f1ee89d5 | 450 | unsigned int len; |
9c54004e DW |
451 | |
452 | spin_lock(&card->cli_queue_lock); | |
453 | skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); | |
454 | spin_unlock(&card->cli_queue_lock); | |
455 | if(skb == NULL) | |
456 | return sprintf(buf, "No data.\n"); | |
457 | ||
f1ee89d5 JS |
458 | len = skb->len; |
459 | memcpy(buf, skb->data, len); | |
9c54004e DW |
460 | |
461 | kfree_skb(skb); | |
f1ee89d5 | 462 | return len; |
9c54004e DW |
463 | } |
464 | ||
465 | static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) | |
466 | { | |
467 | struct sk_buff *skb; | |
468 | struct pkt_hdr *header; | |
469 | ||
9c54004e DW |
470 | if (size > (BUF_SIZE - sizeof(*header))) { |
471 | dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); | |
472 | return 0; | |
473 | } | |
474 | skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); | |
475 | if (!skb) { | |
476 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); | |
477 | return 0; | |
478 | } | |
479 | ||
4df864c1 | 480 | header = skb_put(skb, sizeof(*header)); |
9c54004e DW |
481 | |
482 | header->size = cpu_to_le16(size); | |
483 | header->vpi = cpu_to_le16(0); | |
484 | header->vci = cpu_to_le16(0); | |
485 | header->type = cpu_to_le16(PKT_COMMAND); | |
486 | ||
59ae1d12 | 487 | skb_put_data(skb, buf, size); |
9c54004e DW |
488 | |
489 | fpga_queue(card, dev, skb, NULL); | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | static ssize_t console_store(struct device *dev, struct device_attribute *attr, | |
495 | const char *buf, size_t count) | |
496 | { | |
497 | struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); | |
498 | struct solos_card *card = atmdev->dev_data; | |
499 | int err; | |
500 | ||
501 | err = send_command(card, SOLOS_CHAN(atmdev), buf, count); | |
502 | ||
503 | return err?:count; | |
504 | } | |
505 | ||
f9baad02 NW |
506 | struct geos_gpio_attr { |
507 | struct device_attribute attr; | |
508 | int offset; | |
509 | }; | |
510 | ||
511 | #define SOLOS_GPIO_ATTR(_name, _mode, _show, _store, _offset) \ | |
512 | struct geos_gpio_attr gpio_attr_##_name = { \ | |
513 | .attr = __ATTR(_name, _mode, _show, _store), \ | |
514 | .offset = _offset } | |
515 | ||
516 | static ssize_t geos_gpio_store(struct device *dev, struct device_attribute *attr, | |
517 | const char *buf, size_t count) | |
518 | { | |
f9baad02 | 519 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
c349c0a2 | 520 | struct solos_card *card = dev_get_drvdata(dev); |
f9baad02 NW |
521 | uint32_t data32; |
522 | ||
523 | if (count != 1 && (count != 2 || buf[1] != '\n')) | |
524 | return -EINVAL; | |
525 | ||
526 | spin_lock_irq(&card->param_queue_lock); | |
527 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
528 | if (buf[0] == '1') { | |
529 | data32 |= 1 << gattr->offset; | |
530 | iowrite32(data32, card->config_regs + GPIO_STATUS); | |
531 | } else if (buf[0] == '0') { | |
532 | data32 &= ~(1 << gattr->offset); | |
533 | iowrite32(data32, card->config_regs + GPIO_STATUS); | |
534 | } else { | |
535 | count = -EINVAL; | |
536 | } | |
29042073 | 537 | spin_unlock_irq(&card->param_queue_lock); |
f9baad02 NW |
538 | return count; |
539 | } | |
540 | ||
541 | static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr, | |
542 | char *buf) | |
543 | { | |
f9baad02 | 544 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
c349c0a2 | 545 | struct solos_card *card = dev_get_drvdata(dev); |
f9baad02 NW |
546 | uint32_t data32; |
547 | ||
548 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
549 | data32 = (data32 >> gattr->offset) & 1; | |
550 | ||
551 | return sprintf(buf, "%d\n", data32); | |
552 | } | |
553 | ||
554 | static ssize_t hardware_show(struct device *dev, struct device_attribute *attr, | |
555 | char *buf) | |
556 | { | |
f9baad02 | 557 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
c349c0a2 | 558 | struct solos_card *card = dev_get_drvdata(dev); |
f9baad02 NW |
559 | uint32_t data32; |
560 | ||
561 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
562 | switch (gattr->offset) { | |
563 | case 0: | |
564 | /* HardwareVersion */ | |
565 | data32 = data32 & 0x1F; | |
566 | break; | |
567 | case 1: | |
568 | /* HardwareVariant */ | |
569 | data32 = (data32 >> 5) & 0x0F; | |
570 | break; | |
571 | } | |
572 | return sprintf(buf, "%d\n", data32); | |
573 | } | |
574 | ||
89d9123e | 575 | static DEVICE_ATTR_RW(console); |
9c54004e | 576 | |
d057f0a4 DW |
577 | |
578 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
579 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
580 | ||
581 | #include "solos-attrlist.c" | |
582 | ||
f9baad02 NW |
583 | static SOLOS_GPIO_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store, 9); |
584 | static SOLOS_GPIO_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store, 10); | |
585 | static SOLOS_GPIO_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store, 11); | |
586 | static SOLOS_GPIO_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store, 12); | |
587 | static SOLOS_GPIO_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store, 13); | |
588 | static SOLOS_GPIO_ATTR(PushButton, 0444, geos_gpio_show, NULL, 14); | |
589 | static SOLOS_GPIO_ATTR(HardwareVersion, 0444, hardware_show, NULL, 0); | |
590 | static SOLOS_GPIO_ATTR(HardwareVariant, 0444, hardware_show, NULL, 1); | |
d057f0a4 DW |
591 | #undef SOLOS_ATTR_RO |
592 | #undef SOLOS_ATTR_RW | |
593 | ||
594 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
595 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
596 | ||
597 | static struct attribute *solos_attrs[] = { | |
598 | #include "solos-attrlist.c" | |
599 | NULL | |
600 | }; | |
601 | ||
638ce0fc | 602 | static const struct attribute_group solos_attr_group = { |
d057f0a4 DW |
603 | .attrs = solos_attrs, |
604 | .name = "parameters", | |
605 | }; | |
9c54004e | 606 | |
f9baad02 NW |
607 | static struct attribute *gpio_attrs[] = { |
608 | &gpio_attr_GPIO1.attr.attr, | |
609 | &gpio_attr_GPIO2.attr.attr, | |
610 | &gpio_attr_GPIO3.attr.attr, | |
611 | &gpio_attr_GPIO4.attr.attr, | |
612 | &gpio_attr_GPIO5.attr.attr, | |
613 | &gpio_attr_PushButton.attr.attr, | |
614 | &gpio_attr_HardwareVersion.attr.attr, | |
615 | &gpio_attr_HardwareVariant.attr.attr, | |
616 | NULL | |
617 | }; | |
618 | ||
638ce0fc | 619 | static const struct attribute_group gpio_attr_group = { |
f9baad02 NW |
620 | .attrs = gpio_attrs, |
621 | .name = "gpio", | |
622 | }; | |
623 | ||
fa755b9f DW |
624 | static int flash_upgrade(struct solos_card *card, int chip) |
625 | { | |
626 | const struct firmware *fw; | |
627 | const char *fw_name; | |
7c4015bd SF |
628 | int blocksize = 0; |
629 | int numblocks = 0; | |
fa755b9f DW |
630 | int offset; |
631 | ||
7adcdb4c AM |
632 | switch (chip) { |
633 | case 0: | |
fa755b9f | 634 | fw_name = "solos-FPGA.bin"; |
13af8164 NW |
635 | if (card->atmel_flash) |
636 | blocksize = ATMEL_FPGA_BLOCK; | |
637 | else | |
638 | blocksize = SPI_FLASH_BLOCK; | |
7adcdb4c AM |
639 | break; |
640 | case 1: | |
fa755b9f | 641 | fw_name = "solos-Firmware.bin"; |
13af8164 NW |
642 | if (card->atmel_flash) |
643 | blocksize = ATMEL_SOLOS_BLOCK; | |
644 | else | |
645 | blocksize = SPI_FLASH_BLOCK; | |
7adcdb4c AM |
646 | break; |
647 | case 2: | |
4dbedf43 NW |
648 | if (card->fpga_version > LEGACY_BUFFERS){ |
649 | fw_name = "solos-db-FPGA.bin"; | |
13af8164 NW |
650 | if (card->atmel_flash) |
651 | blocksize = ATMEL_FPGA_BLOCK; | |
652 | else | |
653 | blocksize = SPI_FLASH_BLOCK; | |
4dbedf43 | 654 | } else { |
7adcdb4c AM |
655 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
656 | " daughter board upgrades\n"); | |
4dbedf43 NW |
657 | return -EPERM; |
658 | } | |
7adcdb4c AM |
659 | break; |
660 | case 3: | |
4dbedf43 NW |
661 | if (card->fpga_version > LEGACY_BUFFERS){ |
662 | fw_name = "solos-Firmware.bin"; | |
13af8164 NW |
663 | if (card->atmel_flash) |
664 | blocksize = ATMEL_SOLOS_BLOCK; | |
665 | else | |
666 | blocksize = SPI_FLASH_BLOCK; | |
4dbedf43 | 667 | } else { |
7adcdb4c AM |
668 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
669 | " daughter board upgrades\n"); | |
670 | return -EPERM; | |
4dbedf43 | 671 | } |
7adcdb4c AM |
672 | break; |
673 | default: | |
674 | return -ENODEV; | |
4dbedf43 | 675 | } |
fa755b9f DW |
676 | |
677 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
678 | return -ENOENT; | |
679 | ||
680 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
681 | ||
13af8164 NW |
682 | /* New FPGAs require driver version before permitting flash upgrades */ |
683 | iowrite32(DRIVER_VERSION, card->config_regs + DRIVER_VER); | |
684 | ||
fa755b9f DW |
685 | numblocks = fw->size / blocksize; |
686 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
687 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
688 | ||
7c4015bd SF |
689 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
690 | iowrite32(1, card->config_regs + FPGA_MODE); | |
06091ed6 | 691 | (void) ioread32(card->config_regs + FPGA_MODE); |
7c4015bd | 692 | |
fa755b9f | 693 | /* Set mode to Chip Erase */ |
4dbedf43 NW |
694 | if(chip == 0 || chip == 2) |
695 | dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); | |
696 | if(chip == 1 || chip == 3) | |
697 | dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); | |
fa755b9f | 698 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); |
7c4015bd | 699 | |
7c4015bd | 700 | |
fa755b9f DW |
701 | iowrite32(1, card->config_regs + WRITE_FLASH); |
702 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
703 | ||
704 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
705 | int i; | |
706 | ||
707 | /* Clear write flag */ | |
7c4015bd | 708 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 709 | |
fa755b9f DW |
710 | /* Set mode to Block Write */ |
711 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
712 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
713 | ||
13af8164 | 714 | /* Copy block to buffer, swapping each 16 bits for Atmel flash */ |
fa755b9f | 715 | for(i = 0; i < blocksize; i += 4) { |
13af8164 NW |
716 | uint32_t word; |
717 | if (card->atmel_flash) | |
718 | word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
719 | else | |
720 | word = *(uint32_t *)(fw->data + offset + i); | |
4dbedf43 NW |
721 | if(card->fpga_version > LEGACY_BUFFERS) |
722 | iowrite32(word, FLASH_BUF + i); | |
723 | else | |
724 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 725 | } |
fa755b9f DW |
726 | |
727 | /* Specify block number and then trigger flash write */ | |
728 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
729 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
730 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
731 | } |
732 | ||
fa755b9f DW |
733 | release_firmware(fw); |
734 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
735 | iowrite32(0, card->config_regs + FPGA_MODE); | |
736 | iowrite32(0, card->config_regs + FLASH_MODE); | |
737 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
738 | return 0; | |
7c4015bd SF |
739 | } |
740 | ||
9c54004e DW |
741 | static irqreturn_t solos_irq(int irq, void *dev_id) |
742 | { | |
743 | struct solos_card *card = dev_id; | |
744 | int handled = 1; | |
745 | ||
9c54004e | 746 | iowrite32(0, card->config_regs + IRQ_CLEAR); |
9c54004e | 747 | |
35c2221b | 748 | /* If we're up and running, just kick the tasklet to process TX/RX */ |
fa755b9f | 749 | if (card->atmdev[0]) |
9c54004e | 750 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
751 | else |
752 | wake_up(&card->fw_wq); | |
9c54004e | 753 | |
9c54004e DW |
754 | return IRQ_RETVAL(handled); |
755 | } | |
756 | ||
5f4d4e3f | 757 | static void solos_bh(unsigned long card_arg) |
9c54004e DW |
758 | { |
759 | struct solos_card *card = (void *)card_arg; | |
9c54004e | 760 | uint32_t card_flags; |
9c54004e | 761 | uint32_t rx_done = 0; |
35c2221b | 762 | int port; |
9c54004e | 763 | |
35c2221b DW |
764 | /* |
765 | * Since fpga_tx() is going to need to read the flags under its lock, | |
766 | * it can return them to us so that we don't have to hit PCI MMIO | |
767 | * again for the same information | |
768 | */ | |
769 | card_flags = fpga_tx(card); | |
9c54004e DW |
770 | |
771 | for (port = 0; port < card->nr_ports; port++) { | |
772 | if (card_flags & (0x10 << port)) { | |
90937231 | 773 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
774 | struct sk_buff *skb; |
775 | struct atm_vcc *vcc; | |
776 | int size; | |
777 | ||
90937231 DW |
778 | if (card->using_dma) { |
779 | skb = card->rx_skb[port]; | |
eaf83e39 | 780 | card->rx_skb[port] = NULL; |
9c54004e | 781 | |
ede58ef2 C |
782 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
783 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
9c54004e | 784 | |
90937231 DW |
785 | header = (void *)skb->data; |
786 | size = le16_to_cpu(header->size); | |
787 | skb_put(skb, size + sizeof(*header)); | |
788 | skb_pull(skb, sizeof(*header)); | |
789 | } else { | |
790 | header = &_hdr; | |
9c54004e | 791 | |
90937231 | 792 | rx_done |= 0x10 << port; |
9c54004e | 793 | |
90937231 | 794 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 795 | |
90937231 | 796 | size = le16_to_cpu(header->size); |
78f857f2 NW |
797 | if (size > (card->buffer_size - sizeof(*header))){ |
798 | dev_warn(&card->dev->dev, "Invalid buffer size\n"); | |
799 | continue; | |
800 | } | |
9c54004e | 801 | |
ce816eb0 DW |
802 | /* Use netdev_alloc_skb() because it adds NET_SKB_PAD of |
803 | * headroom, and ensures we can route packets back out an | |
804 | * Ethernet interface (for example) without having to | |
805 | * reallocate. Adding NET_IP_ALIGN also ensures that both | |
806 | * PPPoATM and PPPoEoBR2684 packets end up aligned. */ | |
807 | skb = netdev_alloc_skb_ip_align(NULL, size + 1); | |
90937231 DW |
808 | if (!skb) { |
809 | if (net_ratelimit()) | |
810 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
811 | continue; | |
812 | } | |
9c54004e | 813 | |
90937231 DW |
814 | memcpy_fromio(skb_put(skb, size), |
815 | RX_BUF(card, port) + sizeof(*header), | |
816 | size); | |
817 | } | |
9c54004e | 818 | if (atmdebug) { |
18b429e7 | 819 | dev_info(&card->dev->dev, "Received: port %d\n", port); |
9c54004e | 820 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
90937231 DW |
821 | size, le16_to_cpu(header->vpi), |
822 | le16_to_cpu(header->vci)); | |
9c54004e DW |
823 | print_buffer(skb); |
824 | } | |
825 | ||
90937231 | 826 | switch (le16_to_cpu(header->type)) { |
9c54004e | 827 | case PKT_DATA: |
90937231 DW |
828 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
829 | le16_to_cpu(header->vci)); | |
9c54004e DW |
830 | if (!vcc) { |
831 | if (net_ratelimit()) | |
1e19e658 PP |
832 | dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n", |
833 | le16_to_cpu(header->vpi), le16_to_cpu(header->vci), | |
9c54004e | 834 | port); |
007ef52b NW |
835 | dev_kfree_skb_any(skb); |
836 | break; | |
9c54004e DW |
837 | } |
838 | atm_charge(vcc, skb->truesize); | |
839 | vcc->push(vcc, skb); | |
840 | atomic_inc(&vcc->stats->rx); | |
841 | break; | |
842 | ||
87ebb186 | 843 | case PKT_STATUS: |
95852f48 DW |
844 | if (process_status(card, port, skb) && |
845 | net_ratelimit()) { | |
846 | dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); | |
847 | print_buffer(skb); | |
848 | } | |
eaf83e39 | 849 | dev_kfree_skb_any(skb); |
87ebb186 DW |
850 | break; |
851 | ||
9c54004e DW |
852 | case PKT_COMMAND: |
853 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
854 | if (process_command(card, port, skb)) |
855 | break; | |
9c54004e DW |
856 | spin_lock(&card->cli_queue_lock); |
857 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
858 | if (net_ratelimit()) | |
859 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
860 | port); | |
eaf83e39 | 861 | dev_kfree_skb_any(skb); |
9c54004e DW |
862 | } else |
863 | skb_queue_tail(&card->cli_queue[port], skb); | |
864 | spin_unlock(&card->cli_queue_lock); | |
865 | break; | |
866 | } | |
867 | } | |
eaf83e39 DW |
868 | /* Allocate RX skbs for any ports which need them */ |
869 | if (card->using_dma && card->atmdev[port] && | |
870 | !card->rx_skb[port]) { | |
ce816eb0 DW |
871 | /* Unlike the MMIO case (qv) we can't add NET_IP_ALIGN |
872 | * here; the FPGA can only DMA to addresses which are | |
873 | * aligned to 4 bytes. */ | |
874 | struct sk_buff *skb = dev_alloc_skb(RX_DMA_SIZE); | |
eaf83e39 DW |
875 | if (skb) { |
876 | SKB_CB(skb)->dma_addr = | |
ede58ef2 C |
877 | dma_map_single(&card->dev->dev, skb->data, |
878 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
eaf83e39 DW |
879 | iowrite32(SKB_CB(skb)->dma_addr, |
880 | card->config_regs + RX_DMA_ADDR(port)); | |
881 | card->rx_skb[port] = skb; | |
882 | } else { | |
883 | if (net_ratelimit()) | |
884 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); | |
885 | ||
886 | /* We'll have to try again later */ | |
887 | tasklet_schedule(&card->tlet); | |
888 | } | |
889 | } | |
9c54004e DW |
890 | } |
891 | if (rx_done) | |
892 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
893 | ||
894 | return; | |
895 | } | |
896 | ||
897 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
898 | { | |
899 | struct hlist_head *head; | |
900 | struct atm_vcc *vcc = NULL; | |
9c54004e DW |
901 | struct sock *s; |
902 | ||
903 | read_lock(&vcc_sklist_lock); | |
904 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
b67bfe0d | 905 | sk_for_each(s, head) { |
9c54004e DW |
906 | vcc = atm_sk(s); |
907 | if (vcc->dev == dev && vcc->vci == vci && | |
1f6ea6e5 DW |
908 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE && |
909 | test_bit(ATM_VF_READY, &vcc->flags)) | |
9c54004e DW |
910 | goto out; |
911 | } | |
912 | vcc = NULL; | |
913 | out: | |
914 | read_unlock(&vcc_sklist_lock); | |
915 | return vcc; | |
916 | } | |
917 | ||
9c54004e DW |
918 | static int popen(struct atm_vcc *vcc) |
919 | { | |
920 | struct solos_card *card = vcc->dev->dev_data; | |
921 | struct sk_buff *skb; | |
922 | struct pkt_hdr *header; | |
923 | ||
b28a4b9a DW |
924 | if (vcc->qos.aal != ATM_AAL5) { |
925 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
926 | vcc->qos.aal); | |
927 | return -EINVAL; | |
928 | } | |
929 | ||
a1db5c5b | 930 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
da1ab3e2 JJ |
931 | if (!skb) { |
932 | if (net_ratelimit()) | |
933 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
9c54004e DW |
934 | return -ENOMEM; |
935 | } | |
4df864c1 | 936 | header = skb_put(skb, sizeof(*header)); |
9c54004e | 937 | |
b76811af | 938 | header->size = cpu_to_le16(0); |
9c54004e DW |
939 | header->vpi = cpu_to_le16(vcc->vpi); |
940 | header->vci = cpu_to_le16(vcc->vci); | |
941 | header->type = cpu_to_le16(PKT_POPEN); | |
942 | ||
943 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
944 | ||
bdc54625 | 945 | set_bit(ATM_VF_ADDR, &vcc->flags); |
9c54004e | 946 | set_bit(ATM_VF_READY, &vcc->flags); |
9c54004e DW |
947 | |
948 | return 0; | |
949 | } | |
950 | ||
951 | static void pclose(struct atm_vcc *vcc) | |
952 | { | |
953 | struct solos_card *card = vcc->dev->dev_data; | |
7ad3eade | 954 | unsigned char port = SOLOS_CHAN(vcc->dev); |
213e85d3 | 955 | struct sk_buff *skb, *tmpskb; |
9c54004e DW |
956 | struct pkt_hdr *header; |
957 | ||
213e85d3 DW |
958 | /* Remove any yet-to-be-transmitted packets from the pending queue */ |
959 | spin_lock(&card->tx_queue_lock); | |
960 | skb_queue_walk_safe(&card->tx_queue[port], skb, tmpskb) { | |
961 | if (SKB_CB(skb)->vcc == vcc) { | |
962 | skb_unlink(skb, &card->tx_queue[port]); | |
963 | solos_pop(vcc, skb); | |
964 | } | |
965 | } | |
966 | spin_unlock(&card->tx_queue_lock); | |
967 | ||
a1db5c5b | 968 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
9c54004e DW |
969 | if (!skb) { |
970 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
971 | return; | |
972 | } | |
4df864c1 | 973 | header = skb_put(skb, sizeof(*header)); |
9c54004e | 974 | |
b76811af | 975 | header->size = cpu_to_le16(0); |
9c54004e DW |
976 | header->vpi = cpu_to_le16(vcc->vpi); |
977 | header->vci = cpu_to_le16(vcc->vci); | |
978 | header->type = cpu_to_le16(PKT_PCLOSE); | |
979 | ||
7ad3eade DW |
980 | skb_get(skb); |
981 | fpga_queue(card, port, skb, NULL); | |
9c54004e | 982 | |
7ad3eade DW |
983 | if (!wait_event_timeout(card->param_wq, !skb_shared(skb), 5 * HZ)) |
984 | dev_warn(&card->dev->dev, | |
985 | "Timeout waiting for VCC close on port %d\n", port); | |
986 | ||
987 | dev_kfree_skb(skb); | |
988 | ||
1f6ea6e5 DW |
989 | /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the |
990 | tasklet has finished processing any incoming packets (and, more to | |
991 | the point, using the vcc pointer). */ | |
992 | tasklet_unlock_wait(&card->tlet); | |
213e85d3 DW |
993 | |
994 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
995 | ||
9c54004e DW |
996 | return; |
997 | } | |
998 | ||
999 | static int print_buffer(struct sk_buff *buf) | |
1000 | { | |
1001 | int len,i; | |
1002 | char msg[500]; | |
1003 | char item[10]; | |
1004 | ||
1005 | len = buf->len; | |
1006 | for (i = 0; i < len; i++){ | |
1007 | if(i % 8 == 0) | |
1008 | sprintf(msg, "%02X: ", i); | |
1009 | ||
1010 | sprintf(item,"%02X ",*(buf->data + i)); | |
1011 | strcat(msg, item); | |
1012 | if(i % 8 == 7) { | |
1013 | sprintf(item, "\n"); | |
1014 | strcat(msg, item); | |
1015 | printk(KERN_DEBUG "%s", msg); | |
1016 | } | |
1017 | } | |
1018 | if (i % 8 != 0) { | |
1019 | sprintf(item, "\n"); | |
1020 | strcat(msg, item); | |
1021 | printk(KERN_DEBUG "%s", msg); | |
1022 | } | |
1023 | printk(KERN_DEBUG "\n"); | |
1024 | ||
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
1029 | struct atm_vcc *vcc) | |
1030 | { | |
1031 | int old_len; | |
f69e4170 | 1032 | unsigned long flags; |
9c54004e | 1033 | |
90937231 | 1034 | SKB_CB(skb)->vcc = vcc; |
9c54004e | 1035 | |
f69e4170 | 1036 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
9c54004e DW |
1037 | old_len = skb_queue_len(&card->tx_queue[port]); |
1038 | skb_queue_tail(&card->tx_queue[port], skb); | |
35c2221b | 1039 | if (!old_len) |
f69e4170 | 1040 | card->tx_mask |= (1 << port); |
f69e4170 | 1041 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); |
9c54004e | 1042 | |
f69e4170 DW |
1043 | /* Theoretically we could just schedule the tasklet here, but |
1044 | that introduces latency we don't want -- it's noticeable */ | |
9c54004e DW |
1045 | if (!old_len) |
1046 | fpga_tx(card); | |
1047 | } | |
1048 | ||
35c2221b | 1049 | static uint32_t fpga_tx(struct solos_card *card) |
9c54004e | 1050 | { |
35c2221b | 1051 | uint32_t tx_pending, card_flags; |
9c54004e DW |
1052 | uint32_t tx_started = 0; |
1053 | struct sk_buff *skb; | |
1054 | struct atm_vcc *vcc; | |
1055 | unsigned char port; | |
1056 | unsigned long flags; | |
1057 | ||
1058 | spin_lock_irqsave(&card->tx_lock, flags); | |
35c2221b DW |
1059 | |
1060 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
1061 | /* | |
1062 | * The queue lock is required for _writing_ to tx_mask, but we're | |
1063 | * OK to read it here without locking. The only potential update | |
1064 | * that we could race with is in fpga_queue() where it sets a bit | |
1065 | * for a new port... but it's going to call this function again if | |
1066 | * it's doing that, anyway. | |
1067 | */ | |
1068 | tx_pending = card->tx_mask & ~card_flags; | |
1069 | ||
1070 | for (port = 0; tx_pending; tx_pending >>= 1, port++) { | |
1071 | if (tx_pending & 1) { | |
eaf83e39 | 1072 | struct sk_buff *oldskb = card->tx_skb[port]; |
cae49ede | 1073 | if (oldskb) { |
ede58ef2 C |
1074 | dma_unmap_single(&card->dev->dev, SKB_CB(oldskb)->dma_addr, |
1075 | oldskb->len, DMA_TO_DEVICE); | |
cae49ede DW |
1076 | card->tx_skb[port] = NULL; |
1077 | } | |
9c54004e DW |
1078 | spin_lock(&card->tx_queue_lock); |
1079 | skb = skb_dequeue(&card->tx_queue[port]); | |
f69e4170 DW |
1080 | if (!skb) |
1081 | card->tx_mask &= ~(1 << port); | |
9c54004e DW |
1082 | spin_unlock(&card->tx_queue_lock); |
1083 | ||
eaf83e39 DW |
1084 | if (skb && !card->using_dma) { |
1085 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
bdc54625 | 1086 | tx_started |= 1 << port; |
eaf83e39 DW |
1087 | oldskb = skb; /* We're done with this skb already */ |
1088 | } else if (skb && card->using_dma) { | |
152a2a8b DW |
1089 | unsigned char *data = skb->data; |
1090 | if ((unsigned long)data & card->dma_alignment) { | |
1091 | data = card->dma_bounce + (BUF_SIZE * port); | |
1092 | memcpy(data, skb->data, skb->len); | |
1093 | } | |
ede58ef2 C |
1094 | SKB_CB(skb)->dma_addr = dma_map_single(&card->dev->dev, data, |
1095 | skb->len, DMA_TO_DEVICE); | |
b4bd8ad9 | 1096 | card->tx_skb[port] = skb; |
eaf83e39 DW |
1097 | iowrite32(SKB_CB(skb)->dma_addr, |
1098 | card->config_regs + TX_DMA_ADDR(port)); | |
1099 | } | |
1100 | ||
1101 | if (!oldskb) | |
9c54004e DW |
1102 | continue; |
1103 | ||
eaf83e39 | 1104 | /* Clean up and free oldskb now it's gone */ |
9c54004e | 1105 | if (atmdebug) { |
18b429e7 PP |
1106 | struct pkt_hdr *header = (void *)oldskb->data; |
1107 | int size = le16_to_cpu(header->size); | |
1108 | ||
1109 | skb_pull(oldskb, sizeof(*header)); | |
9c54004e DW |
1110 | dev_info(&card->dev->dev, "Transmitted: port %d\n", |
1111 | port); | |
18b429e7 PP |
1112 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
1113 | size, le16_to_cpu(header->vpi), | |
1114 | le16_to_cpu(header->vci)); | |
eaf83e39 | 1115 | print_buffer(oldskb); |
9c54004e | 1116 | } |
9c54004e | 1117 | |
eaf83e39 | 1118 | vcc = SKB_CB(oldskb)->vcc; |
9c54004e DW |
1119 | |
1120 | if (vcc) { | |
1121 | atomic_inc(&vcc->stats->tx); | |
eaf83e39 | 1122 | solos_pop(vcc, oldskb); |
7ad3eade | 1123 | } else { |
eaf83e39 | 1124 | dev_kfree_skb_irq(oldskb); |
7ad3eade DW |
1125 | wake_up(&card->param_wq); |
1126 | } | |
9c54004e DW |
1127 | } |
1128 | } | |
bdc54625 | 1129 | /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ |
9c54004e DW |
1130 | if (tx_started) |
1131 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
1132 | ||
1133 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
35c2221b | 1134 | return card_flags; |
9c54004e DW |
1135 | } |
1136 | ||
1137 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
1138 | { | |
1139 | struct solos_card *card = vcc->dev->dev_data; | |
9c54004e | 1140 | struct pkt_hdr *header; |
b76811af | 1141 | int pktlen; |
9c54004e | 1142 | |
b76811af DW |
1143 | pktlen = skb->len; |
1144 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
1145 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
1146 | solos_pop(vcc, skb); | |
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
1151 | int expand_by = 0; | |
1152 | int ret; | |
1153 | ||
1154 | if (skb_headroom(skb) < sizeof(*header)) | |
1155 | expand_by = sizeof(*header) - skb_headroom(skb); | |
1156 | ||
1157 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
1158 | if (ret) { | |
4306cad6 | 1159 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
1160 | solos_pop(vcc, skb); |
1161 | return ret; | |
1162 | } | |
1163 | } | |
1164 | ||
d58ff351 | 1165 | header = skb_push(skb, sizeof(*header)); |
9c54004e | 1166 | |
b76811af DW |
1167 | /* This does _not_ include the size of the header */ |
1168 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1169 | header->vpi = cpu_to_le16(vcc->vpi); |
1170 | header->vci = cpu_to_le16(vcc->vci); | |
1171 | header->type = cpu_to_le16(PKT_DATA); | |
1172 | ||
1173 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1174 | ||
1175 | return 0; | |
1176 | } | |
1177 | ||
46c4b7a5 | 1178 | static const struct atmdev_ops fpga_ops = { |
9c54004e DW |
1179 | .open = popen, |
1180 | .close = pclose, | |
1181 | .ioctl = NULL, | |
9c54004e DW |
1182 | .send = psend, |
1183 | .send_oam = NULL, | |
1184 | .phy_put = NULL, | |
1185 | .phy_get = NULL, | |
1186 | .change_qos = NULL, | |
1187 | .proc_read = NULL, | |
1188 | .owner = THIS_MODULE | |
1189 | }; | |
1190 | ||
1191 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1192 | { | |
cd5549e0 | 1193 | int err; |
9c54004e DW |
1194 | uint16_t fpga_ver; |
1195 | uint8_t major_ver, minor_ver; | |
1196 | uint32_t data32; | |
1197 | struct solos_card *card; | |
1198 | ||
9c54004e DW |
1199 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1200 | if (!card) | |
1201 | return -ENOMEM; | |
1202 | ||
1203 | card->dev = dev; | |
fa755b9f | 1204 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1205 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1206 | |
1207 | err = pci_enable_device(dev); | |
1208 | if (err) { | |
1209 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1210 | goto out; | |
1211 | } | |
1212 | ||
ede58ef2 | 1213 | err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); |
90937231 DW |
1214 | if (err) { |
1215 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1216 | goto out; | |
1217 | } | |
1218 | ||
9c54004e DW |
1219 | err = pci_request_regions(dev, "solos"); |
1220 | if (err) { | |
1221 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1222 | goto out; | |
1223 | } | |
1224 | ||
1225 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1226 | if (!card->config_regs) { | |
1227 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
73112f9b | 1228 | err = -ENOMEM; |
9c54004e DW |
1229 | goto out_release_regions; |
1230 | } | |
1231 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1232 | if (!card->buffers) { | |
1233 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
73112f9b | 1234 | err = -ENOMEM; |
9c54004e DW |
1235 | goto out_unmap_config; |
1236 | } | |
1237 | ||
cc3657e1 DW |
1238 | if (reset) { |
1239 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1492a3a7 | 1240 | ioread32(card->config_regs + FPGA_MODE); |
9c54004e | 1241 | |
cc3657e1 | 1242 | iowrite32(0, card->config_regs + FPGA_MODE); |
1492a3a7 | 1243 | ioread32(card->config_regs + FPGA_MODE); |
cc3657e1 | 1244 | } |
9c54004e DW |
1245 | |
1246 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1247 | fpga_ver = (data32 & 0x0000FFFF); | |
1248 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1249 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
4dbedf43 NW |
1250 | card->fpga_version = FPGA_VERSION(major_ver,minor_ver); |
1251 | if (card->fpga_version > LEGACY_BUFFERS) | |
1252 | card->buffer_size = BUF_SIZE; | |
1253 | else | |
1254 | card->buffer_size = OLD_BUF_SIZE; | |
9c54004e DW |
1255 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", |
1256 | major_ver, minor_ver, fpga_ver); | |
1257 | ||
3ce1227c DW |
1258 | if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade || |
1259 | db_fpga_upgrade || db_firmware_upgrade)) { | |
1260 | dev_warn(&dev->dev, | |
1261 | "FPGA too old; cannot upgrade flash. Use JTAG.\n"); | |
1262 | fpga_upgrade = firmware_upgrade = 0; | |
1263 | db_fpga_upgrade = db_firmware_upgrade = 0; | |
1264 | } | |
1265 | ||
13af8164 NW |
1266 | /* Stopped using Atmel flash after 0.03-38 */ |
1267 | if (fpga_ver < 39) | |
1268 | card->atmel_flash = 1; | |
1269 | else | |
1270 | card->atmel_flash = 0; | |
1271 | ||
152a2a8b DW |
1272 | data32 = ioread32(card->config_regs + PORTS); |
1273 | card->nr_ports = (data32 & 0x000000FF); | |
1274 | ||
b4bd8ad9 DW |
1275 | if (card->fpga_version >= DMA_SUPPORTED) { |
1276 | pci_set_master(dev); | |
90937231 | 1277 | card->using_dma = 1; |
152a2a8b DW |
1278 | if (1) { /* All known FPGA versions so far */ |
1279 | card->dma_alignment = 3; | |
6da2ec56 KC |
1280 | card->dma_bounce = kmalloc_array(card->nr_ports, |
1281 | BUF_SIZE, GFP_KERNEL); | |
152a2a8b DW |
1282 | if (!card->dma_bounce) { |
1283 | dev_warn(&card->dev->dev, "Failed to allocate DMA bounce buffers\n"); | |
c7bcae46 | 1284 | err = -ENOMEM; |
152a2a8b DW |
1285 | /* Fallback to MMIO doesn't work */ |
1286 | goto out_unmap_both; | |
1287 | } | |
1288 | } | |
4dbedf43 NW |
1289 | } else { |
1290 | card->using_dma = 0; | |
eab50f73 DW |
1291 | /* Set RX empty flag for all ports */ |
1292 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1293 | } | |
9c54004e | 1294 | |
9c54004e | 1295 | pci_set_drvdata(dev, card); |
fa755b9f | 1296 | |
9c54004e DW |
1297 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1298 | spin_lock_init(&card->tx_lock); | |
1299 | spin_lock_init(&card->tx_queue_lock); | |
1300 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1301 | spin_lock_init(&card->param_queue_lock); |
1302 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1303 | |
fcd82664 | 1304 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
9c54004e | 1305 | "solos-pci", card); |
fa755b9f | 1306 | if (err) { |
9c54004e | 1307 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1308 | goto out_unmap_both; |
1309 | } | |
9c54004e | 1310 | |
9c54004e DW |
1311 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); |
1312 | ||
fa755b9f DW |
1313 | if (fpga_upgrade) |
1314 | flash_upgrade(card, 0); | |
1315 | ||
1316 | if (firmware_upgrade) | |
1317 | flash_upgrade(card, 1); | |
1318 | ||
4dbedf43 NW |
1319 | if (db_fpga_upgrade) |
1320 | flash_upgrade(card, 2); | |
1321 | ||
1322 | if (db_firmware_upgrade) | |
1323 | flash_upgrade(card, 3); | |
1324 | ||
d9ca676b | 1325 | err = atm_init(card, &dev->dev); |
fa755b9f DW |
1326 | if (err) |
1327 | goto out_free_irq; | |
1328 | ||
f9baad02 NW |
1329 | if (card->fpga_version >= DMA_SUPPORTED && |
1330 | sysfs_create_group(&card->dev->dev.kobj, &gpio_attr_group)) | |
1331 | dev_err(&card->dev->dev, "Could not register parameter group for GPIOs\n"); | |
1332 | ||
9c54004e DW |
1333 | return 0; |
1334 | ||
fa755b9f DW |
1335 | out_free_irq: |
1336 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1337 | free_irq(dev->irq, card); | |
1338 | tasklet_kill(&card->tlet); | |
1339 | ||
9c54004e | 1340 | out_unmap_both: |
152a2a8b | 1341 | kfree(card->dma_bounce); |
9c54004e | 1342 | pci_iounmap(dev, card->buffers); |
8ae0cfee JL |
1343 | out_unmap_config: |
1344 | pci_iounmap(dev, card->config_regs); | |
9c54004e DW |
1345 | out_release_regions: |
1346 | pci_release_regions(dev); | |
1347 | out: | |
bc111d57 | 1348 | kfree(card); |
9c54004e DW |
1349 | return err; |
1350 | } | |
1351 | ||
d9ca676b | 1352 | static int atm_init(struct solos_card *card, struct device *parent) |
9c54004e DW |
1353 | { |
1354 | int i; | |
1355 | ||
9c54004e | 1356 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1357 | struct sk_buff *skb; |
1358 | struct pkt_hdr *header; | |
1359 | ||
9c54004e DW |
1360 | skb_queue_head_init(&card->tx_queue[i]); |
1361 | skb_queue_head_init(&card->cli_queue[i]); | |
1362 | ||
d9ca676b | 1363 | card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL); |
9c54004e DW |
1364 | if (!card->atmdev[i]) { |
1365 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1366 | atm_remove(card); | |
1367 | return -ENODEV; | |
1368 | } | |
1369 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1370 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1371 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1372 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1373 | |
1374 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1375 | ||
1376 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1377 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1378 | card->atmdev[i]->dev_data = card; | |
1379 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
c031235b | 1380 | atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND); |
87ebb186 | 1381 | |
a1db5c5b | 1382 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
87ebb186 DW |
1383 | if (!skb) { |
1384 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1385 | continue; | |
1386 | } | |
1387 | ||
4df864c1 | 1388 | header = skb_put(skb, sizeof(*header)); |
87ebb186 DW |
1389 | |
1390 | header->size = cpu_to_le16(0); | |
1391 | header->vpi = cpu_to_le16(0); | |
1392 | header->vci = cpu_to_le16(0); | |
1393 | header->type = cpu_to_le16(PKT_STATUS); | |
1394 | ||
1395 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1396 | } |
1397 | return 0; | |
1398 | } | |
1399 | ||
1400 | static void atm_remove(struct solos_card *card) | |
1401 | { | |
1402 | int i; | |
1403 | ||
1404 | for (i = 0; i < card->nr_ports; i++) { | |
1405 | if (card->atmdev[i]) { | |
97d759d3 DW |
1406 | struct sk_buff *skb; |
1407 | ||
9c54004e | 1408 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); |
c0fe3026 DW |
1409 | |
1410 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e | 1411 | atm_dev_deregister(card->atmdev[i]); |
97d759d3 DW |
1412 | |
1413 | skb = card->rx_skb[i]; | |
1414 | if (skb) { | |
ede58ef2 C |
1415 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
1416 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
97d759d3 DW |
1417 | dev_kfree_skb(skb); |
1418 | } | |
1419 | skb = card->tx_skb[i]; | |
1420 | if (skb) { | |
ede58ef2 C |
1421 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
1422 | skb->len, DMA_TO_DEVICE); | |
97d759d3 DW |
1423 | dev_kfree_skb(skb); |
1424 | } | |
1425 | while ((skb = skb_dequeue(&card->tx_queue[i]))) | |
1426 | dev_kfree_skb(skb); | |
1427 | ||
9c54004e DW |
1428 | } |
1429 | } | |
1430 | } | |
1431 | ||
1432 | static void fpga_remove(struct pci_dev *dev) | |
1433 | { | |
1434 | struct solos_card *card = pci_get_drvdata(dev); | |
97d759d3 DW |
1435 | |
1436 | /* Disable IRQs */ | |
1437 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
9c54004e | 1438 | |
97d759d3 DW |
1439 | /* Reset FPGA */ |
1440 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1441 | (void)ioread32(card->config_regs + FPGA_MODE); | |
9c54004e | 1442 | |
f9baad02 NW |
1443 | if (card->fpga_version >= DMA_SUPPORTED) |
1444 | sysfs_remove_group(&card->dev->dev.kobj, &gpio_attr_group); | |
1445 | ||
9c54004e DW |
1446 | atm_remove(card); |
1447 | ||
9c54004e DW |
1448 | free_irq(dev->irq, card); |
1449 | tasklet_kill(&card->tlet); | |
1450 | ||
152a2a8b DW |
1451 | kfree(card->dma_bounce); |
1452 | ||
97d759d3 DW |
1453 | /* Release device from reset */ |
1454 | iowrite32(0, card->config_regs + FPGA_MODE); | |
1455 | (void)ioread32(card->config_regs + FPGA_MODE); | |
1456 | ||
9c54004e DW |
1457 | pci_iounmap(dev, card->buffers); |
1458 | pci_iounmap(dev, card->config_regs); | |
1459 | ||
9c54004e DW |
1460 | pci_release_regions(dev); |
1461 | pci_disable_device(dev); | |
1462 | ||
9c54004e | 1463 | kfree(card); |
9c54004e DW |
1464 | } |
1465 | ||
6d6148b3 | 1466 | static const struct pci_device_id fpga_pci_tbl[] = { |
9c54004e DW |
1467 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
1468 | { 0, } | |
1469 | }; | |
1470 | ||
1471 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1472 | ||
1473 | static struct pci_driver fpga_driver = { | |
1474 | .name = "solos", | |
1475 | .id_table = fpga_pci_tbl, | |
1476 | .probe = fpga_probe, | |
1477 | .remove = fpga_remove, | |
1478 | }; | |
1479 | ||
1480 | ||
1481 | static int __init solos_pci_init(void) | |
1482 | { | |
7ad3eade DW |
1483 | BUILD_BUG_ON(sizeof(struct solos_skb_cb) > sizeof(((struct sk_buff *)0)->cb)); |
1484 | ||
9c54004e DW |
1485 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); |
1486 | return pci_register_driver(&fpga_driver); | |
1487 | } | |
1488 | ||
1489 | static void __exit solos_pci_exit(void) | |
1490 | { | |
1491 | pci_unregister_driver(&fpga_driver); | |
1492 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1493 | } | |
1494 | ||
1495 | module_init(solos_pci_init); | |
1496 | module_exit(solos_pci_exit); |