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 | |
4 | * Traverse Technologies -- http://www.traverse.com.au/ | |
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 | { | |
bd0ed561 | 519 | struct pci_dev *pdev = to_pci_dev(dev); |
f9baad02 NW |
520 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
521 | struct solos_card *card = pci_get_drvdata(pdev); | |
522 | uint32_t data32; | |
523 | ||
524 | if (count != 1 && (count != 2 || buf[1] != '\n')) | |
525 | return -EINVAL; | |
526 | ||
527 | spin_lock_irq(&card->param_queue_lock); | |
528 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
529 | if (buf[0] == '1') { | |
530 | data32 |= 1 << gattr->offset; | |
531 | iowrite32(data32, card->config_regs + GPIO_STATUS); | |
532 | } else if (buf[0] == '0') { | |
533 | data32 &= ~(1 << gattr->offset); | |
534 | iowrite32(data32, card->config_regs + GPIO_STATUS); | |
535 | } else { | |
536 | count = -EINVAL; | |
537 | } | |
29042073 | 538 | spin_unlock_irq(&card->param_queue_lock); |
f9baad02 NW |
539 | return count; |
540 | } | |
541 | ||
542 | static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr, | |
543 | char *buf) | |
544 | { | |
bd0ed561 | 545 | struct pci_dev *pdev = to_pci_dev(dev); |
f9baad02 NW |
546 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
547 | struct solos_card *card = pci_get_drvdata(pdev); | |
548 | uint32_t data32; | |
549 | ||
550 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
551 | data32 = (data32 >> gattr->offset) & 1; | |
552 | ||
553 | return sprintf(buf, "%d\n", data32); | |
554 | } | |
555 | ||
556 | static ssize_t hardware_show(struct device *dev, struct device_attribute *attr, | |
557 | char *buf) | |
558 | { | |
bd0ed561 | 559 | struct pci_dev *pdev = to_pci_dev(dev); |
f9baad02 NW |
560 | struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); |
561 | struct solos_card *card = pci_get_drvdata(pdev); | |
562 | uint32_t data32; | |
563 | ||
564 | data32 = ioread32(card->config_regs + GPIO_STATUS); | |
565 | switch (gattr->offset) { | |
566 | case 0: | |
567 | /* HardwareVersion */ | |
568 | data32 = data32 & 0x1F; | |
569 | break; | |
570 | case 1: | |
571 | /* HardwareVariant */ | |
572 | data32 = (data32 >> 5) & 0x0F; | |
573 | break; | |
574 | } | |
575 | return sprintf(buf, "%d\n", data32); | |
576 | } | |
577 | ||
89d9123e | 578 | static DEVICE_ATTR_RW(console); |
9c54004e | 579 | |
d057f0a4 DW |
580 | |
581 | #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); | |
582 | #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); | |
583 | ||
584 | #include "solos-attrlist.c" | |
585 | ||
f9baad02 NW |
586 | static SOLOS_GPIO_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store, 9); |
587 | static SOLOS_GPIO_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store, 10); | |
588 | static SOLOS_GPIO_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store, 11); | |
589 | static SOLOS_GPIO_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store, 12); | |
590 | static SOLOS_GPIO_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store, 13); | |
591 | static SOLOS_GPIO_ATTR(PushButton, 0444, geos_gpio_show, NULL, 14); | |
592 | static SOLOS_GPIO_ATTR(HardwareVersion, 0444, hardware_show, NULL, 0); | |
593 | static SOLOS_GPIO_ATTR(HardwareVariant, 0444, hardware_show, NULL, 1); | |
d057f0a4 DW |
594 | #undef SOLOS_ATTR_RO |
595 | #undef SOLOS_ATTR_RW | |
596 | ||
597 | #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, | |
598 | #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, | |
599 | ||
600 | static struct attribute *solos_attrs[] = { | |
601 | #include "solos-attrlist.c" | |
602 | NULL | |
603 | }; | |
604 | ||
638ce0fc | 605 | static const struct attribute_group solos_attr_group = { |
d057f0a4 DW |
606 | .attrs = solos_attrs, |
607 | .name = "parameters", | |
608 | }; | |
9c54004e | 609 | |
f9baad02 NW |
610 | static struct attribute *gpio_attrs[] = { |
611 | &gpio_attr_GPIO1.attr.attr, | |
612 | &gpio_attr_GPIO2.attr.attr, | |
613 | &gpio_attr_GPIO3.attr.attr, | |
614 | &gpio_attr_GPIO4.attr.attr, | |
615 | &gpio_attr_GPIO5.attr.attr, | |
616 | &gpio_attr_PushButton.attr.attr, | |
617 | &gpio_attr_HardwareVersion.attr.attr, | |
618 | &gpio_attr_HardwareVariant.attr.attr, | |
619 | NULL | |
620 | }; | |
621 | ||
638ce0fc | 622 | static const struct attribute_group gpio_attr_group = { |
f9baad02 NW |
623 | .attrs = gpio_attrs, |
624 | .name = "gpio", | |
625 | }; | |
626 | ||
fa755b9f DW |
627 | static int flash_upgrade(struct solos_card *card, int chip) |
628 | { | |
629 | const struct firmware *fw; | |
630 | const char *fw_name; | |
7c4015bd SF |
631 | int blocksize = 0; |
632 | int numblocks = 0; | |
fa755b9f DW |
633 | int offset; |
634 | ||
7adcdb4c AM |
635 | switch (chip) { |
636 | case 0: | |
fa755b9f | 637 | fw_name = "solos-FPGA.bin"; |
13af8164 NW |
638 | if (card->atmel_flash) |
639 | blocksize = ATMEL_FPGA_BLOCK; | |
640 | else | |
641 | blocksize = SPI_FLASH_BLOCK; | |
7adcdb4c AM |
642 | break; |
643 | case 1: | |
fa755b9f | 644 | fw_name = "solos-Firmware.bin"; |
13af8164 NW |
645 | if (card->atmel_flash) |
646 | blocksize = ATMEL_SOLOS_BLOCK; | |
647 | else | |
648 | blocksize = SPI_FLASH_BLOCK; | |
7adcdb4c AM |
649 | break; |
650 | case 2: | |
4dbedf43 NW |
651 | if (card->fpga_version > LEGACY_BUFFERS){ |
652 | fw_name = "solos-db-FPGA.bin"; | |
13af8164 NW |
653 | if (card->atmel_flash) |
654 | blocksize = ATMEL_FPGA_BLOCK; | |
655 | else | |
656 | blocksize = SPI_FLASH_BLOCK; | |
4dbedf43 | 657 | } else { |
7adcdb4c AM |
658 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
659 | " daughter board upgrades\n"); | |
4dbedf43 NW |
660 | return -EPERM; |
661 | } | |
7adcdb4c AM |
662 | break; |
663 | case 3: | |
4dbedf43 NW |
664 | if (card->fpga_version > LEGACY_BUFFERS){ |
665 | fw_name = "solos-Firmware.bin"; | |
13af8164 NW |
666 | if (card->atmel_flash) |
667 | blocksize = ATMEL_SOLOS_BLOCK; | |
668 | else | |
669 | blocksize = SPI_FLASH_BLOCK; | |
4dbedf43 | 670 | } else { |
7adcdb4c AM |
671 | dev_info(&card->dev->dev, "FPGA version doesn't support" |
672 | " daughter board upgrades\n"); | |
673 | return -EPERM; | |
4dbedf43 | 674 | } |
7adcdb4c AM |
675 | break; |
676 | default: | |
677 | return -ENODEV; | |
4dbedf43 | 678 | } |
fa755b9f DW |
679 | |
680 | if (request_firmware(&fw, fw_name, &card->dev->dev)) | |
681 | return -ENOENT; | |
682 | ||
683 | dev_info(&card->dev->dev, "Flash upgrade starting\n"); | |
684 | ||
13af8164 NW |
685 | /* New FPGAs require driver version before permitting flash upgrades */ |
686 | iowrite32(DRIVER_VERSION, card->config_regs + DRIVER_VER); | |
687 | ||
fa755b9f DW |
688 | numblocks = fw->size / blocksize; |
689 | dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); | |
7c4015bd SF |
690 | dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); |
691 | ||
7c4015bd SF |
692 | dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); |
693 | iowrite32(1, card->config_regs + FPGA_MODE); | |
06091ed6 | 694 | (void) ioread32(card->config_regs + FPGA_MODE); |
7c4015bd | 695 | |
fa755b9f | 696 | /* Set mode to Chip Erase */ |
4dbedf43 NW |
697 | if(chip == 0 || chip == 2) |
698 | dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); | |
699 | if(chip == 1 || chip == 3) | |
700 | dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); | |
fa755b9f | 701 | iowrite32((chip * 2), card->config_regs + FLASH_MODE); |
7c4015bd | 702 | |
7c4015bd | 703 | |
fa755b9f DW |
704 | iowrite32(1, card->config_regs + WRITE_FLASH); |
705 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
706 | ||
707 | for (offset = 0; offset < fw->size; offset += blocksize) { | |
708 | int i; | |
709 | ||
710 | /* Clear write flag */ | |
7c4015bd | 711 | iowrite32(0, card->config_regs + WRITE_FLASH); |
7c4015bd | 712 | |
fa755b9f DW |
713 | /* Set mode to Block Write */ |
714 | /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ | |
715 | iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); | |
716 | ||
13af8164 | 717 | /* Copy block to buffer, swapping each 16 bits for Atmel flash */ |
fa755b9f | 718 | for(i = 0; i < blocksize; i += 4) { |
13af8164 NW |
719 | uint32_t word; |
720 | if (card->atmel_flash) | |
721 | word = swahb32p((uint32_t *)(fw->data + offset + i)); | |
722 | else | |
723 | word = *(uint32_t *)(fw->data + offset + i); | |
4dbedf43 NW |
724 | if(card->fpga_version > LEGACY_BUFFERS) |
725 | iowrite32(word, FLASH_BUF + i); | |
726 | else | |
727 | iowrite32(word, RX_BUF(card, 3) + i); | |
7c4015bd | 728 | } |
fa755b9f DW |
729 | |
730 | /* Specify block number and then trigger flash write */ | |
731 | iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); | |
732 | iowrite32(1, card->config_regs + WRITE_FLASH); | |
733 | wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); | |
7c4015bd SF |
734 | } |
735 | ||
fa755b9f DW |
736 | release_firmware(fw); |
737 | iowrite32(0, card->config_regs + WRITE_FLASH); | |
738 | iowrite32(0, card->config_regs + FPGA_MODE); | |
739 | iowrite32(0, card->config_regs + FLASH_MODE); | |
740 | dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); | |
741 | return 0; | |
7c4015bd SF |
742 | } |
743 | ||
9c54004e DW |
744 | static irqreturn_t solos_irq(int irq, void *dev_id) |
745 | { | |
746 | struct solos_card *card = dev_id; | |
747 | int handled = 1; | |
748 | ||
9c54004e | 749 | iowrite32(0, card->config_regs + IRQ_CLEAR); |
9c54004e | 750 | |
35c2221b | 751 | /* If we're up and running, just kick the tasklet to process TX/RX */ |
fa755b9f | 752 | if (card->atmdev[0]) |
9c54004e | 753 | tasklet_schedule(&card->tlet); |
fa755b9f DW |
754 | else |
755 | wake_up(&card->fw_wq); | |
9c54004e | 756 | |
9c54004e DW |
757 | return IRQ_RETVAL(handled); |
758 | } | |
759 | ||
5f4d4e3f | 760 | static void solos_bh(unsigned long card_arg) |
9c54004e DW |
761 | { |
762 | struct solos_card *card = (void *)card_arg; | |
9c54004e | 763 | uint32_t card_flags; |
9c54004e | 764 | uint32_t rx_done = 0; |
35c2221b | 765 | int port; |
9c54004e | 766 | |
35c2221b DW |
767 | /* |
768 | * Since fpga_tx() is going to need to read the flags under its lock, | |
769 | * it can return them to us so that we don't have to hit PCI MMIO | |
770 | * again for the same information | |
771 | */ | |
772 | card_flags = fpga_tx(card); | |
9c54004e DW |
773 | |
774 | for (port = 0; port < card->nr_ports; port++) { | |
775 | if (card_flags & (0x10 << port)) { | |
90937231 | 776 | struct pkt_hdr _hdr, *header; |
9c54004e DW |
777 | struct sk_buff *skb; |
778 | struct atm_vcc *vcc; | |
779 | int size; | |
780 | ||
90937231 DW |
781 | if (card->using_dma) { |
782 | skb = card->rx_skb[port]; | |
eaf83e39 | 783 | card->rx_skb[port] = NULL; |
9c54004e | 784 | |
ede58ef2 C |
785 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
786 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
9c54004e | 787 | |
90937231 DW |
788 | header = (void *)skb->data; |
789 | size = le16_to_cpu(header->size); | |
790 | skb_put(skb, size + sizeof(*header)); | |
791 | skb_pull(skb, sizeof(*header)); | |
792 | } else { | |
793 | header = &_hdr; | |
9c54004e | 794 | |
90937231 | 795 | rx_done |= 0x10 << port; |
9c54004e | 796 | |
90937231 | 797 | memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); |
9c54004e | 798 | |
90937231 | 799 | size = le16_to_cpu(header->size); |
78f857f2 NW |
800 | if (size > (card->buffer_size - sizeof(*header))){ |
801 | dev_warn(&card->dev->dev, "Invalid buffer size\n"); | |
802 | continue; | |
803 | } | |
9c54004e | 804 | |
ce816eb0 DW |
805 | /* Use netdev_alloc_skb() because it adds NET_SKB_PAD of |
806 | * headroom, and ensures we can route packets back out an | |
807 | * Ethernet interface (for example) without having to | |
808 | * reallocate. Adding NET_IP_ALIGN also ensures that both | |
809 | * PPPoATM and PPPoEoBR2684 packets end up aligned. */ | |
810 | skb = netdev_alloc_skb_ip_align(NULL, size + 1); | |
90937231 DW |
811 | if (!skb) { |
812 | if (net_ratelimit()) | |
813 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); | |
814 | continue; | |
815 | } | |
9c54004e | 816 | |
90937231 DW |
817 | memcpy_fromio(skb_put(skb, size), |
818 | RX_BUF(card, port) + sizeof(*header), | |
819 | size); | |
820 | } | |
9c54004e | 821 | if (atmdebug) { |
18b429e7 | 822 | dev_info(&card->dev->dev, "Received: port %d\n", port); |
9c54004e | 823 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
90937231 DW |
824 | size, le16_to_cpu(header->vpi), |
825 | le16_to_cpu(header->vci)); | |
9c54004e DW |
826 | print_buffer(skb); |
827 | } | |
828 | ||
90937231 | 829 | switch (le16_to_cpu(header->type)) { |
9c54004e | 830 | case PKT_DATA: |
90937231 DW |
831 | vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), |
832 | le16_to_cpu(header->vci)); | |
9c54004e DW |
833 | if (!vcc) { |
834 | if (net_ratelimit()) | |
1e19e658 PP |
835 | dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n", |
836 | le16_to_cpu(header->vpi), le16_to_cpu(header->vci), | |
9c54004e | 837 | port); |
007ef52b NW |
838 | dev_kfree_skb_any(skb); |
839 | break; | |
9c54004e DW |
840 | } |
841 | atm_charge(vcc, skb->truesize); | |
842 | vcc->push(vcc, skb); | |
843 | atomic_inc(&vcc->stats->rx); | |
844 | break; | |
845 | ||
87ebb186 | 846 | case PKT_STATUS: |
95852f48 DW |
847 | if (process_status(card, port, skb) && |
848 | net_ratelimit()) { | |
849 | dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); | |
850 | print_buffer(skb); | |
851 | } | |
eaf83e39 | 852 | dev_kfree_skb_any(skb); |
87ebb186 DW |
853 | break; |
854 | ||
9c54004e DW |
855 | case PKT_COMMAND: |
856 | default: /* FIXME: Not really, surely? */ | |
01e2ffac DW |
857 | if (process_command(card, port, skb)) |
858 | break; | |
9c54004e DW |
859 | spin_lock(&card->cli_queue_lock); |
860 | if (skb_queue_len(&card->cli_queue[port]) > 10) { | |
861 | if (net_ratelimit()) | |
862 | dev_warn(&card->dev->dev, "Dropping console response on port %d\n", | |
863 | port); | |
eaf83e39 | 864 | dev_kfree_skb_any(skb); |
9c54004e DW |
865 | } else |
866 | skb_queue_tail(&card->cli_queue[port], skb); | |
867 | spin_unlock(&card->cli_queue_lock); | |
868 | break; | |
869 | } | |
870 | } | |
eaf83e39 DW |
871 | /* Allocate RX skbs for any ports which need them */ |
872 | if (card->using_dma && card->atmdev[port] && | |
873 | !card->rx_skb[port]) { | |
ce816eb0 DW |
874 | /* Unlike the MMIO case (qv) we can't add NET_IP_ALIGN |
875 | * here; the FPGA can only DMA to addresses which are | |
876 | * aligned to 4 bytes. */ | |
877 | struct sk_buff *skb = dev_alloc_skb(RX_DMA_SIZE); | |
eaf83e39 DW |
878 | if (skb) { |
879 | SKB_CB(skb)->dma_addr = | |
ede58ef2 C |
880 | dma_map_single(&card->dev->dev, skb->data, |
881 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
eaf83e39 DW |
882 | iowrite32(SKB_CB(skb)->dma_addr, |
883 | card->config_regs + RX_DMA_ADDR(port)); | |
884 | card->rx_skb[port] = skb; | |
885 | } else { | |
886 | if (net_ratelimit()) | |
887 | dev_warn(&card->dev->dev, "Failed to allocate RX skb"); | |
888 | ||
889 | /* We'll have to try again later */ | |
890 | tasklet_schedule(&card->tlet); | |
891 | } | |
892 | } | |
9c54004e DW |
893 | } |
894 | if (rx_done) | |
895 | iowrite32(rx_done, card->config_regs + FLAGS_ADDR); | |
896 | ||
897 | return; | |
898 | } | |
899 | ||
900 | static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) | |
901 | { | |
902 | struct hlist_head *head; | |
903 | struct atm_vcc *vcc = NULL; | |
9c54004e DW |
904 | struct sock *s; |
905 | ||
906 | read_lock(&vcc_sklist_lock); | |
907 | head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; | |
b67bfe0d | 908 | sk_for_each(s, head) { |
9c54004e DW |
909 | vcc = atm_sk(s); |
910 | if (vcc->dev == dev && vcc->vci == vci && | |
1f6ea6e5 DW |
911 | vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE && |
912 | test_bit(ATM_VF_READY, &vcc->flags)) | |
9c54004e DW |
913 | goto out; |
914 | } | |
915 | vcc = NULL; | |
916 | out: | |
917 | read_unlock(&vcc_sklist_lock); | |
918 | return vcc; | |
919 | } | |
920 | ||
9c54004e DW |
921 | static int popen(struct atm_vcc *vcc) |
922 | { | |
923 | struct solos_card *card = vcc->dev->dev_data; | |
924 | struct sk_buff *skb; | |
925 | struct pkt_hdr *header; | |
926 | ||
b28a4b9a DW |
927 | if (vcc->qos.aal != ATM_AAL5) { |
928 | dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", | |
929 | vcc->qos.aal); | |
930 | return -EINVAL; | |
931 | } | |
932 | ||
a1db5c5b | 933 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
da1ab3e2 JJ |
934 | if (!skb) { |
935 | if (net_ratelimit()) | |
936 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); | |
9c54004e DW |
937 | return -ENOMEM; |
938 | } | |
4df864c1 | 939 | header = skb_put(skb, sizeof(*header)); |
9c54004e | 940 | |
b76811af | 941 | header->size = cpu_to_le16(0); |
9c54004e DW |
942 | header->vpi = cpu_to_le16(vcc->vpi); |
943 | header->vci = cpu_to_le16(vcc->vci); | |
944 | header->type = cpu_to_le16(PKT_POPEN); | |
945 | ||
946 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); | |
947 | ||
bdc54625 | 948 | set_bit(ATM_VF_ADDR, &vcc->flags); |
9c54004e | 949 | set_bit(ATM_VF_READY, &vcc->flags); |
9c54004e DW |
950 | |
951 | return 0; | |
952 | } | |
953 | ||
954 | static void pclose(struct atm_vcc *vcc) | |
955 | { | |
956 | struct solos_card *card = vcc->dev->dev_data; | |
7ad3eade | 957 | unsigned char port = SOLOS_CHAN(vcc->dev); |
213e85d3 | 958 | struct sk_buff *skb, *tmpskb; |
9c54004e DW |
959 | struct pkt_hdr *header; |
960 | ||
213e85d3 DW |
961 | /* Remove any yet-to-be-transmitted packets from the pending queue */ |
962 | spin_lock(&card->tx_queue_lock); | |
963 | skb_queue_walk_safe(&card->tx_queue[port], skb, tmpskb) { | |
964 | if (SKB_CB(skb)->vcc == vcc) { | |
965 | skb_unlink(skb, &card->tx_queue[port]); | |
966 | solos_pop(vcc, skb); | |
967 | } | |
968 | } | |
969 | spin_unlock(&card->tx_queue_lock); | |
970 | ||
a1db5c5b | 971 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
9c54004e DW |
972 | if (!skb) { |
973 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); | |
974 | return; | |
975 | } | |
4df864c1 | 976 | header = skb_put(skb, sizeof(*header)); |
9c54004e | 977 | |
b76811af | 978 | header->size = cpu_to_le16(0); |
9c54004e DW |
979 | header->vpi = cpu_to_le16(vcc->vpi); |
980 | header->vci = cpu_to_le16(vcc->vci); | |
981 | header->type = cpu_to_le16(PKT_PCLOSE); | |
982 | ||
7ad3eade DW |
983 | skb_get(skb); |
984 | fpga_queue(card, port, skb, NULL); | |
9c54004e | 985 | |
7ad3eade DW |
986 | if (!wait_event_timeout(card->param_wq, !skb_shared(skb), 5 * HZ)) |
987 | dev_warn(&card->dev->dev, | |
988 | "Timeout waiting for VCC close on port %d\n", port); | |
989 | ||
990 | dev_kfree_skb(skb); | |
991 | ||
1f6ea6e5 DW |
992 | /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the |
993 | tasklet has finished processing any incoming packets (and, more to | |
994 | the point, using the vcc pointer). */ | |
995 | tasklet_unlock_wait(&card->tlet); | |
213e85d3 DW |
996 | |
997 | clear_bit(ATM_VF_ADDR, &vcc->flags); | |
998 | ||
9c54004e DW |
999 | return; |
1000 | } | |
1001 | ||
1002 | static int print_buffer(struct sk_buff *buf) | |
1003 | { | |
1004 | int len,i; | |
1005 | char msg[500]; | |
1006 | char item[10]; | |
1007 | ||
1008 | len = buf->len; | |
1009 | for (i = 0; i < len; i++){ | |
1010 | if(i % 8 == 0) | |
1011 | sprintf(msg, "%02X: ", i); | |
1012 | ||
1013 | sprintf(item,"%02X ",*(buf->data + i)); | |
1014 | strcat(msg, item); | |
1015 | if(i % 8 == 7) { | |
1016 | sprintf(item, "\n"); | |
1017 | strcat(msg, item); | |
1018 | printk(KERN_DEBUG "%s", msg); | |
1019 | } | |
1020 | } | |
1021 | if (i % 8 != 0) { | |
1022 | sprintf(item, "\n"); | |
1023 | strcat(msg, item); | |
1024 | printk(KERN_DEBUG "%s", msg); | |
1025 | } | |
1026 | printk(KERN_DEBUG "\n"); | |
1027 | ||
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, | |
1032 | struct atm_vcc *vcc) | |
1033 | { | |
1034 | int old_len; | |
f69e4170 | 1035 | unsigned long flags; |
9c54004e | 1036 | |
90937231 | 1037 | SKB_CB(skb)->vcc = vcc; |
9c54004e | 1038 | |
f69e4170 | 1039 | spin_lock_irqsave(&card->tx_queue_lock, flags); |
9c54004e DW |
1040 | old_len = skb_queue_len(&card->tx_queue[port]); |
1041 | skb_queue_tail(&card->tx_queue[port], skb); | |
35c2221b | 1042 | if (!old_len) |
f69e4170 | 1043 | card->tx_mask |= (1 << port); |
f69e4170 | 1044 | spin_unlock_irqrestore(&card->tx_queue_lock, flags); |
9c54004e | 1045 | |
f69e4170 DW |
1046 | /* Theoretically we could just schedule the tasklet here, but |
1047 | that introduces latency we don't want -- it's noticeable */ | |
9c54004e DW |
1048 | if (!old_len) |
1049 | fpga_tx(card); | |
1050 | } | |
1051 | ||
35c2221b | 1052 | static uint32_t fpga_tx(struct solos_card *card) |
9c54004e | 1053 | { |
35c2221b | 1054 | uint32_t tx_pending, card_flags; |
9c54004e DW |
1055 | uint32_t tx_started = 0; |
1056 | struct sk_buff *skb; | |
1057 | struct atm_vcc *vcc; | |
1058 | unsigned char port; | |
1059 | unsigned long flags; | |
1060 | ||
1061 | spin_lock_irqsave(&card->tx_lock, flags); | |
35c2221b DW |
1062 | |
1063 | card_flags = ioread32(card->config_regs + FLAGS_ADDR); | |
1064 | /* | |
1065 | * The queue lock is required for _writing_ to tx_mask, but we're | |
1066 | * OK to read it here without locking. The only potential update | |
1067 | * that we could race with is in fpga_queue() where it sets a bit | |
1068 | * for a new port... but it's going to call this function again if | |
1069 | * it's doing that, anyway. | |
1070 | */ | |
1071 | tx_pending = card->tx_mask & ~card_flags; | |
1072 | ||
1073 | for (port = 0; tx_pending; tx_pending >>= 1, port++) { | |
1074 | if (tx_pending & 1) { | |
eaf83e39 | 1075 | struct sk_buff *oldskb = card->tx_skb[port]; |
cae49ede | 1076 | if (oldskb) { |
ede58ef2 C |
1077 | dma_unmap_single(&card->dev->dev, SKB_CB(oldskb)->dma_addr, |
1078 | oldskb->len, DMA_TO_DEVICE); | |
cae49ede DW |
1079 | card->tx_skb[port] = NULL; |
1080 | } | |
9c54004e DW |
1081 | spin_lock(&card->tx_queue_lock); |
1082 | skb = skb_dequeue(&card->tx_queue[port]); | |
f69e4170 DW |
1083 | if (!skb) |
1084 | card->tx_mask &= ~(1 << port); | |
9c54004e DW |
1085 | spin_unlock(&card->tx_queue_lock); |
1086 | ||
eaf83e39 DW |
1087 | if (skb && !card->using_dma) { |
1088 | memcpy_toio(TX_BUF(card, port), skb->data, skb->len); | |
bdc54625 | 1089 | tx_started |= 1 << port; |
eaf83e39 DW |
1090 | oldskb = skb; /* We're done with this skb already */ |
1091 | } else if (skb && card->using_dma) { | |
152a2a8b DW |
1092 | unsigned char *data = skb->data; |
1093 | if ((unsigned long)data & card->dma_alignment) { | |
1094 | data = card->dma_bounce + (BUF_SIZE * port); | |
1095 | memcpy(data, skb->data, skb->len); | |
1096 | } | |
ede58ef2 C |
1097 | SKB_CB(skb)->dma_addr = dma_map_single(&card->dev->dev, data, |
1098 | skb->len, DMA_TO_DEVICE); | |
b4bd8ad9 | 1099 | card->tx_skb[port] = skb; |
eaf83e39 DW |
1100 | iowrite32(SKB_CB(skb)->dma_addr, |
1101 | card->config_regs + TX_DMA_ADDR(port)); | |
1102 | } | |
1103 | ||
1104 | if (!oldskb) | |
9c54004e DW |
1105 | continue; |
1106 | ||
eaf83e39 | 1107 | /* Clean up and free oldskb now it's gone */ |
9c54004e | 1108 | if (atmdebug) { |
18b429e7 PP |
1109 | struct pkt_hdr *header = (void *)oldskb->data; |
1110 | int size = le16_to_cpu(header->size); | |
1111 | ||
1112 | skb_pull(oldskb, sizeof(*header)); | |
9c54004e DW |
1113 | dev_info(&card->dev->dev, "Transmitted: port %d\n", |
1114 | port); | |
18b429e7 PP |
1115 | dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", |
1116 | size, le16_to_cpu(header->vpi), | |
1117 | le16_to_cpu(header->vci)); | |
eaf83e39 | 1118 | print_buffer(oldskb); |
9c54004e | 1119 | } |
9c54004e | 1120 | |
eaf83e39 | 1121 | vcc = SKB_CB(oldskb)->vcc; |
9c54004e DW |
1122 | |
1123 | if (vcc) { | |
1124 | atomic_inc(&vcc->stats->tx); | |
eaf83e39 | 1125 | solos_pop(vcc, oldskb); |
7ad3eade | 1126 | } else { |
eaf83e39 | 1127 | dev_kfree_skb_irq(oldskb); |
7ad3eade DW |
1128 | wake_up(&card->param_wq); |
1129 | } | |
9c54004e DW |
1130 | } |
1131 | } | |
bdc54625 | 1132 | /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ |
9c54004e DW |
1133 | if (tx_started) |
1134 | iowrite32(tx_started, card->config_regs + FLAGS_ADDR); | |
1135 | ||
1136 | spin_unlock_irqrestore(&card->tx_lock, flags); | |
35c2221b | 1137 | return card_flags; |
9c54004e DW |
1138 | } |
1139 | ||
1140 | static int psend(struct atm_vcc *vcc, struct sk_buff *skb) | |
1141 | { | |
1142 | struct solos_card *card = vcc->dev->dev_data; | |
9c54004e | 1143 | struct pkt_hdr *header; |
b76811af | 1144 | int pktlen; |
9c54004e | 1145 | |
b76811af DW |
1146 | pktlen = skb->len; |
1147 | if (pktlen > (BUF_SIZE - sizeof(*header))) { | |
9c54004e DW |
1148 | dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); |
1149 | solos_pop(vcc, skb); | |
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | if (!skb_clone_writable(skb, sizeof(*header))) { | |
1154 | int expand_by = 0; | |
1155 | int ret; | |
1156 | ||
1157 | if (skb_headroom(skb) < sizeof(*header)) | |
1158 | expand_by = sizeof(*header) - skb_headroom(skb); | |
1159 | ||
1160 | ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); | |
1161 | if (ret) { | |
4306cad6 | 1162 | dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); |
9c54004e DW |
1163 | solos_pop(vcc, skb); |
1164 | return ret; | |
1165 | } | |
1166 | } | |
1167 | ||
d58ff351 | 1168 | header = skb_push(skb, sizeof(*header)); |
9c54004e | 1169 | |
b76811af DW |
1170 | /* This does _not_ include the size of the header */ |
1171 | header->size = cpu_to_le16(pktlen); | |
9c54004e DW |
1172 | header->vpi = cpu_to_le16(vcc->vpi); |
1173 | header->vci = cpu_to_le16(vcc->vci); | |
1174 | header->type = cpu_to_le16(PKT_DATA); | |
1175 | ||
1176 | fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
46c4b7a5 | 1181 | static const struct atmdev_ops fpga_ops = { |
9c54004e DW |
1182 | .open = popen, |
1183 | .close = pclose, | |
1184 | .ioctl = NULL, | |
1185 | .getsockopt = NULL, | |
1186 | .setsockopt = NULL, | |
1187 | .send = psend, | |
1188 | .send_oam = NULL, | |
1189 | .phy_put = NULL, | |
1190 | .phy_get = NULL, | |
1191 | .change_qos = NULL, | |
1192 | .proc_read = NULL, | |
1193 | .owner = THIS_MODULE | |
1194 | }; | |
1195 | ||
1196 | static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) | |
1197 | { | |
cd5549e0 | 1198 | int err; |
9c54004e DW |
1199 | uint16_t fpga_ver; |
1200 | uint8_t major_ver, minor_ver; | |
1201 | uint32_t data32; | |
1202 | struct solos_card *card; | |
1203 | ||
9c54004e DW |
1204 | card = kzalloc(sizeof(*card), GFP_KERNEL); |
1205 | if (!card) | |
1206 | return -ENOMEM; | |
1207 | ||
1208 | card->dev = dev; | |
fa755b9f | 1209 | init_waitqueue_head(&card->fw_wq); |
01e2ffac | 1210 | init_waitqueue_head(&card->param_wq); |
9c54004e DW |
1211 | |
1212 | err = pci_enable_device(dev); | |
1213 | if (err) { | |
1214 | dev_warn(&dev->dev, "Failed to enable PCI device\n"); | |
1215 | goto out; | |
1216 | } | |
1217 | ||
ede58ef2 | 1218 | err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); |
90937231 DW |
1219 | if (err) { |
1220 | dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); | |
1221 | goto out; | |
1222 | } | |
1223 | ||
9c54004e DW |
1224 | err = pci_request_regions(dev, "solos"); |
1225 | if (err) { | |
1226 | dev_warn(&dev->dev, "Failed to request regions\n"); | |
1227 | goto out; | |
1228 | } | |
1229 | ||
1230 | card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); | |
1231 | if (!card->config_regs) { | |
1232 | dev_warn(&dev->dev, "Failed to ioremap config registers\n"); | |
73112f9b | 1233 | err = -ENOMEM; |
9c54004e DW |
1234 | goto out_release_regions; |
1235 | } | |
1236 | card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); | |
1237 | if (!card->buffers) { | |
1238 | dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); | |
73112f9b | 1239 | err = -ENOMEM; |
9c54004e DW |
1240 | goto out_unmap_config; |
1241 | } | |
1242 | ||
cc3657e1 DW |
1243 | if (reset) { |
1244 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1492a3a7 | 1245 | ioread32(card->config_regs + FPGA_MODE); |
9c54004e | 1246 | |
cc3657e1 | 1247 | iowrite32(0, card->config_regs + FPGA_MODE); |
1492a3a7 | 1248 | ioread32(card->config_regs + FPGA_MODE); |
cc3657e1 | 1249 | } |
9c54004e DW |
1250 | |
1251 | data32 = ioread32(card->config_regs + FPGA_VER); | |
1252 | fpga_ver = (data32 & 0x0000FFFF); | |
1253 | major_ver = ((data32 & 0xFF000000) >> 24); | |
1254 | minor_ver = ((data32 & 0x00FF0000) >> 16); | |
4dbedf43 NW |
1255 | card->fpga_version = FPGA_VERSION(major_ver,minor_ver); |
1256 | if (card->fpga_version > LEGACY_BUFFERS) | |
1257 | card->buffer_size = BUF_SIZE; | |
1258 | else | |
1259 | card->buffer_size = OLD_BUF_SIZE; | |
9c54004e DW |
1260 | dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", |
1261 | major_ver, minor_ver, fpga_ver); | |
1262 | ||
3ce1227c DW |
1263 | if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade || |
1264 | db_fpga_upgrade || db_firmware_upgrade)) { | |
1265 | dev_warn(&dev->dev, | |
1266 | "FPGA too old; cannot upgrade flash. Use JTAG.\n"); | |
1267 | fpga_upgrade = firmware_upgrade = 0; | |
1268 | db_fpga_upgrade = db_firmware_upgrade = 0; | |
1269 | } | |
1270 | ||
13af8164 NW |
1271 | /* Stopped using Atmel flash after 0.03-38 */ |
1272 | if (fpga_ver < 39) | |
1273 | card->atmel_flash = 1; | |
1274 | else | |
1275 | card->atmel_flash = 0; | |
1276 | ||
152a2a8b DW |
1277 | data32 = ioread32(card->config_regs + PORTS); |
1278 | card->nr_ports = (data32 & 0x000000FF); | |
1279 | ||
b4bd8ad9 DW |
1280 | if (card->fpga_version >= DMA_SUPPORTED) { |
1281 | pci_set_master(dev); | |
90937231 | 1282 | card->using_dma = 1; |
152a2a8b DW |
1283 | if (1) { /* All known FPGA versions so far */ |
1284 | card->dma_alignment = 3; | |
6da2ec56 KC |
1285 | card->dma_bounce = kmalloc_array(card->nr_ports, |
1286 | BUF_SIZE, GFP_KERNEL); | |
152a2a8b DW |
1287 | if (!card->dma_bounce) { |
1288 | dev_warn(&card->dev->dev, "Failed to allocate DMA bounce buffers\n"); | |
c7bcae46 | 1289 | err = -ENOMEM; |
152a2a8b DW |
1290 | /* Fallback to MMIO doesn't work */ |
1291 | goto out_unmap_both; | |
1292 | } | |
1293 | } | |
4dbedf43 NW |
1294 | } else { |
1295 | card->using_dma = 0; | |
eab50f73 DW |
1296 | /* Set RX empty flag for all ports */ |
1297 | iowrite32(0xF0, card->config_regs + FLAGS_ADDR); | |
1298 | } | |
9c54004e | 1299 | |
9c54004e | 1300 | pci_set_drvdata(dev, card); |
fa755b9f | 1301 | |
9c54004e DW |
1302 | tasklet_init(&card->tlet, solos_bh, (unsigned long)card); |
1303 | spin_lock_init(&card->tx_lock); | |
1304 | spin_lock_init(&card->tx_queue_lock); | |
1305 | spin_lock_init(&card->cli_queue_lock); | |
01e2ffac DW |
1306 | spin_lock_init(&card->param_queue_lock); |
1307 | INIT_LIST_HEAD(&card->param_queue); | |
fa755b9f | 1308 | |
fcd82664 | 1309 | err = request_irq(dev->irq, solos_irq, IRQF_SHARED, |
9c54004e | 1310 | "solos-pci", card); |
fa755b9f | 1311 | if (err) { |
9c54004e | 1312 | dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); |
fa755b9f DW |
1313 | goto out_unmap_both; |
1314 | } | |
9c54004e | 1315 | |
9c54004e DW |
1316 | iowrite32(1, card->config_regs + IRQ_EN_ADDR); |
1317 | ||
fa755b9f DW |
1318 | if (fpga_upgrade) |
1319 | flash_upgrade(card, 0); | |
1320 | ||
1321 | if (firmware_upgrade) | |
1322 | flash_upgrade(card, 1); | |
1323 | ||
4dbedf43 NW |
1324 | if (db_fpga_upgrade) |
1325 | flash_upgrade(card, 2); | |
1326 | ||
1327 | if (db_firmware_upgrade) | |
1328 | flash_upgrade(card, 3); | |
1329 | ||
d9ca676b | 1330 | err = atm_init(card, &dev->dev); |
fa755b9f DW |
1331 | if (err) |
1332 | goto out_free_irq; | |
1333 | ||
f9baad02 NW |
1334 | if (card->fpga_version >= DMA_SUPPORTED && |
1335 | sysfs_create_group(&card->dev->dev.kobj, &gpio_attr_group)) | |
1336 | dev_err(&card->dev->dev, "Could not register parameter group for GPIOs\n"); | |
1337 | ||
9c54004e DW |
1338 | return 0; |
1339 | ||
fa755b9f DW |
1340 | out_free_irq: |
1341 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
1342 | free_irq(dev->irq, card); | |
1343 | tasklet_kill(&card->tlet); | |
1344 | ||
9c54004e | 1345 | out_unmap_both: |
152a2a8b | 1346 | kfree(card->dma_bounce); |
9c54004e | 1347 | pci_iounmap(dev, card->buffers); |
8ae0cfee JL |
1348 | out_unmap_config: |
1349 | pci_iounmap(dev, card->config_regs); | |
9c54004e DW |
1350 | out_release_regions: |
1351 | pci_release_regions(dev); | |
1352 | out: | |
bc111d57 | 1353 | kfree(card); |
9c54004e DW |
1354 | return err; |
1355 | } | |
1356 | ||
d9ca676b | 1357 | static int atm_init(struct solos_card *card, struct device *parent) |
9c54004e DW |
1358 | { |
1359 | int i; | |
1360 | ||
9c54004e | 1361 | for (i = 0; i < card->nr_ports; i++) { |
87ebb186 DW |
1362 | struct sk_buff *skb; |
1363 | struct pkt_hdr *header; | |
1364 | ||
9c54004e DW |
1365 | skb_queue_head_init(&card->tx_queue[i]); |
1366 | skb_queue_head_init(&card->cli_queue[i]); | |
1367 | ||
d9ca676b | 1368 | card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL); |
9c54004e DW |
1369 | if (!card->atmdev[i]) { |
1370 | dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); | |
1371 | atm_remove(card); | |
1372 | return -ENODEV; | |
1373 | } | |
1374 | if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) | |
1375 | dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); | |
d057f0a4 DW |
1376 | if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) |
1377 | dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); | |
9c54004e DW |
1378 | |
1379 | dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); | |
1380 | ||
1381 | card->atmdev[i]->ci_range.vpi_bits = 8; | |
1382 | card->atmdev[i]->ci_range.vci_bits = 16; | |
1383 | card->atmdev[i]->dev_data = card; | |
1384 | card->atmdev[i]->phy_data = (void *)(unsigned long)i; | |
c031235b | 1385 | atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND); |
87ebb186 | 1386 | |
a1db5c5b | 1387 | skb = alloc_skb(sizeof(*header), GFP_KERNEL); |
87ebb186 DW |
1388 | if (!skb) { |
1389 | dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); | |
1390 | continue; | |
1391 | } | |
1392 | ||
4df864c1 | 1393 | header = skb_put(skb, sizeof(*header)); |
87ebb186 DW |
1394 | |
1395 | header->size = cpu_to_le16(0); | |
1396 | header->vpi = cpu_to_le16(0); | |
1397 | header->vci = cpu_to_le16(0); | |
1398 | header->type = cpu_to_le16(PKT_STATUS); | |
1399 | ||
1400 | fpga_queue(card, i, skb, NULL); | |
9c54004e DW |
1401 | } |
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | static void atm_remove(struct solos_card *card) | |
1406 | { | |
1407 | int i; | |
1408 | ||
1409 | for (i = 0; i < card->nr_ports; i++) { | |
1410 | if (card->atmdev[i]) { | |
97d759d3 DW |
1411 | struct sk_buff *skb; |
1412 | ||
9c54004e | 1413 | dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); |
c0fe3026 DW |
1414 | |
1415 | sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); | |
9c54004e | 1416 | atm_dev_deregister(card->atmdev[i]); |
97d759d3 DW |
1417 | |
1418 | skb = card->rx_skb[i]; | |
1419 | if (skb) { | |
ede58ef2 C |
1420 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
1421 | RX_DMA_SIZE, DMA_FROM_DEVICE); | |
97d759d3 DW |
1422 | dev_kfree_skb(skb); |
1423 | } | |
1424 | skb = card->tx_skb[i]; | |
1425 | if (skb) { | |
ede58ef2 C |
1426 | dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr, |
1427 | skb->len, DMA_TO_DEVICE); | |
97d759d3 DW |
1428 | dev_kfree_skb(skb); |
1429 | } | |
1430 | while ((skb = skb_dequeue(&card->tx_queue[i]))) | |
1431 | dev_kfree_skb(skb); | |
1432 | ||
9c54004e DW |
1433 | } |
1434 | } | |
1435 | } | |
1436 | ||
1437 | static void fpga_remove(struct pci_dev *dev) | |
1438 | { | |
1439 | struct solos_card *card = pci_get_drvdata(dev); | |
97d759d3 DW |
1440 | |
1441 | /* Disable IRQs */ | |
1442 | iowrite32(0, card->config_regs + IRQ_EN_ADDR); | |
9c54004e | 1443 | |
97d759d3 DW |
1444 | /* Reset FPGA */ |
1445 | iowrite32(1, card->config_regs + FPGA_MODE); | |
1446 | (void)ioread32(card->config_regs + FPGA_MODE); | |
9c54004e | 1447 | |
f9baad02 NW |
1448 | if (card->fpga_version >= DMA_SUPPORTED) |
1449 | sysfs_remove_group(&card->dev->dev.kobj, &gpio_attr_group); | |
1450 | ||
9c54004e DW |
1451 | atm_remove(card); |
1452 | ||
9c54004e DW |
1453 | free_irq(dev->irq, card); |
1454 | tasklet_kill(&card->tlet); | |
1455 | ||
152a2a8b DW |
1456 | kfree(card->dma_bounce); |
1457 | ||
97d759d3 DW |
1458 | /* Release device from reset */ |
1459 | iowrite32(0, card->config_regs + FPGA_MODE); | |
1460 | (void)ioread32(card->config_regs + FPGA_MODE); | |
1461 | ||
9c54004e DW |
1462 | pci_iounmap(dev, card->buffers); |
1463 | pci_iounmap(dev, card->config_regs); | |
1464 | ||
9c54004e DW |
1465 | pci_release_regions(dev); |
1466 | pci_disable_device(dev); | |
1467 | ||
9c54004e | 1468 | kfree(card); |
9c54004e DW |
1469 | } |
1470 | ||
6d6148b3 | 1471 | static const struct pci_device_id fpga_pci_tbl[] = { |
9c54004e DW |
1472 | { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
1473 | { 0, } | |
1474 | }; | |
1475 | ||
1476 | MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); | |
1477 | ||
1478 | static struct pci_driver fpga_driver = { | |
1479 | .name = "solos", | |
1480 | .id_table = fpga_pci_tbl, | |
1481 | .probe = fpga_probe, | |
1482 | .remove = fpga_remove, | |
1483 | }; | |
1484 | ||
1485 | ||
1486 | static int __init solos_pci_init(void) | |
1487 | { | |
7ad3eade DW |
1488 | BUILD_BUG_ON(sizeof(struct solos_skb_cb) > sizeof(((struct sk_buff *)0)->cb)); |
1489 | ||
9c54004e DW |
1490 | printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); |
1491 | return pci_register_driver(&fpga_driver); | |
1492 | } | |
1493 | ||
1494 | static void __exit solos_pci_exit(void) | |
1495 | { | |
1496 | pci_unregister_driver(&fpga_driver); | |
1497 | printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); | |
1498 | } | |
1499 | ||
1500 | module_init(solos_pci_init); | |
1501 | module_exit(solos_pci_exit); |