1 /* 2 * Driver for the Solos PCI ADSL2+ card, designed to support Linux by 3 * Traverse Technologies -- http://www.traverse.com.au/ 4 * Xrio Limited -- http://www.xrio.com/ 5 * 6 * 7 * Copyright © 2008 Traverse Technologies 8 * Copyright © 2008 Intel Corporation 9 * 10 * Authors: Nathan Williams <nathan@traverse.com.au> 11 * David Woodhouse <dwmw2@infradead.org> 12 * Treker Chen <treker@xrio.com> 13 * 14 * This program is free software; you can redistribute it and/or 15 * modify it under the terms of the GNU General Public License 16 * version 2, as published by the Free Software Foundation. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 */ 23 24 #define DEBUG 25 #define VERBOSE_DEBUG 26 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/kernel.h> 30 #include <linux/errno.h> 31 #include <linux/ioport.h> 32 #include <linux/types.h> 33 #include <linux/pci.h> 34 #include <linux/atm.h> 35 #include <linux/atmdev.h> 36 #include <linux/skbuff.h> 37 #include <linux/sysfs.h> 38 #include <linux/device.h> 39 #include <linux/kobject.h> 40 #include <linux/firmware.h> 41 #include <linux/ctype.h> 42 #include <linux/swab.h> 43 #include <linux/slab.h> 44 45 #define VERSION "0.07" 46 #define PTAG "solos-pci" 47 48 #define CONFIG_RAM_SIZE 128 49 #define FLAGS_ADDR 0x7C 50 #define IRQ_EN_ADDR 0x78 51 #define FPGA_VER 0x74 52 #define IRQ_CLEAR 0x70 53 #define WRITE_FLASH 0x6C 54 #define PORTS 0x68 55 #define FLASH_BLOCK 0x64 56 #define FLASH_BUSY 0x60 57 #define FPGA_MODE 0x5C 58 #define FLASH_MODE 0x58 59 #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) 60 #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) 61 62 #define DATA_RAM_SIZE 32768 63 #define BUF_SIZE 2048 64 #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/ 65 #define FPGA_PAGE 528 /* FPGA flash page size*/ 66 #define SOLOS_PAGE 512 /* Solos flash page size*/ 67 #define FPGA_BLOCK (FPGA_PAGE * 8) /* FPGA flash block size*/ 68 #define SOLOS_BLOCK (SOLOS_PAGE * 8) /* Solos flash block size*/ 69 70 #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2) 71 #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size)) 72 #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2) 73 74 #define RX_DMA_SIZE 2048 75 76 #define FPGA_VERSION(a,b) (((a) << 8) + (b)) 77 #define LEGACY_BUFFERS 2 78 #define DMA_SUPPORTED 4 79 80 static int reset = 0; 81 static int atmdebug = 0; 82 static int firmware_upgrade = 0; 83 static int fpga_upgrade = 0; 84 static int db_firmware_upgrade = 0; 85 static int db_fpga_upgrade = 0; 86 87 struct pkt_hdr { 88 __le16 size; 89 __le16 vpi; 90 __le16 vci; 91 __le16 type; 92 }; 93 94 struct solos_skb_cb { 95 struct atm_vcc *vcc; 96 uint32_t dma_addr; 97 }; 98 99 100 #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb) 101 102 #define PKT_DATA 0 103 #define PKT_COMMAND 1 104 #define PKT_POPEN 3 105 #define PKT_PCLOSE 4 106 #define PKT_STATUS 5 107 108 struct solos_card { 109 void __iomem *config_regs; 110 void __iomem *buffers; 111 int nr_ports; 112 int tx_mask; 113 struct pci_dev *dev; 114 struct atm_dev *atmdev[4]; 115 struct tasklet_struct tlet; 116 spinlock_t tx_lock; 117 spinlock_t tx_queue_lock; 118 spinlock_t cli_queue_lock; 119 spinlock_t param_queue_lock; 120 struct list_head param_queue; 121 struct sk_buff_head tx_queue[4]; 122 struct sk_buff_head cli_queue[4]; 123 struct sk_buff *tx_skb[4]; 124 struct sk_buff *rx_skb[4]; 125 wait_queue_head_t param_wq; 126 wait_queue_head_t fw_wq; 127 int using_dma; 128 int fpga_version; 129 int buffer_size; 130 }; 131 132 133 struct solos_param { 134 struct list_head list; 135 pid_t pid; 136 int port; 137 struct sk_buff *response; 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"); 146 MODULE_FIRMWARE("solos-FPGA.bin"); 147 MODULE_FIRMWARE("solos-Firmware.bin"); 148 MODULE_FIRMWARE("solos-db-FPGA.bin"); 149 MODULE_PARM_DESC(reset, "Reset Solos chips on startup"); 150 MODULE_PARM_DESC(atmdebug, "Print ATM data"); 151 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade"); 152 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade"); 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"); 155 module_param(reset, int, 0444); 156 module_param(atmdebug, int, 0644); 157 module_param(firmware_upgrade, int, 0444); 158 module_param(fpga_upgrade, int, 0444); 159 module_param(db_firmware_upgrade, int, 0444); 160 module_param(db_fpga_upgrade, int, 0444); 161 162 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, 163 struct atm_vcc *vcc); 164 static uint32_t fpga_tx(struct solos_card *); 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); 167 static int list_vccs(int vci); 168 static int atm_init(struct solos_card *, struct device *); 169 static void atm_remove(struct solos_card *); 170 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); 171 static void solos_bh(unsigned long); 172 static int print_buffer(struct sk_buff *buf); 173 174 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb) 175 { 176 if (vcc->pop) 177 vcc->pop(vcc, skb); 178 else 179 dev_kfree_skb_any(skb); 180 } 181 182 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr, 183 char *buf) 184 { 185 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); 186 struct solos_card *card = atmdev->dev_data; 187 struct solos_param prm; 188 struct sk_buff *skb; 189 struct pkt_hdr *header; 190 int buflen; 191 192 buflen = strlen(attr->attr.name) + 10; 193 194 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); 195 if (!skb) { 196 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n"); 197 return -ENOMEM; 198 } 199 200 header = (void *)skb_put(skb, sizeof(*header)); 201 202 buflen = snprintf((void *)&header[1], buflen - 1, 203 "L%05d\n%s\n", current->pid, attr->attr.name); 204 skb_put(skb, buflen); 205 206 header->size = cpu_to_le16(buflen); 207 header->vpi = cpu_to_le16(0); 208 header->vci = cpu_to_le16(0); 209 header->type = cpu_to_le16(PKT_COMMAND); 210 211 prm.pid = current->pid; 212 prm.response = NULL; 213 prm.port = SOLOS_CHAN(atmdev); 214 215 spin_lock_irq(&card->param_queue_lock); 216 list_add(&prm.list, &card->param_queue); 217 spin_unlock_irq(&card->param_queue_lock); 218 219 fpga_queue(card, prm.port, skb, NULL); 220 221 wait_event_timeout(card->param_wq, prm.response, 5 * HZ); 222 223 spin_lock_irq(&card->param_queue_lock); 224 list_del(&prm.list); 225 spin_unlock_irq(&card->param_queue_lock); 226 227 if (!prm.response) 228 return -EIO; 229 230 buflen = prm.response->len; 231 memcpy(buf, prm.response->data, buflen); 232 kfree_skb(prm.response); 233 234 return buflen; 235 } 236 237 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr, 238 const char *buf, size_t count) 239 { 240 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); 241 struct solos_card *card = atmdev->dev_data; 242 struct solos_param prm; 243 struct sk_buff *skb; 244 struct pkt_hdr *header; 245 int buflen; 246 ssize_t ret; 247 248 buflen = strlen(attr->attr.name) + 11 + count; 249 250 skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL); 251 if (!skb) { 252 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n"); 253 return -ENOMEM; 254 } 255 256 header = (void *)skb_put(skb, sizeof(*header)); 257 258 buflen = snprintf((void *)&header[1], buflen - 1, 259 "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf); 260 261 skb_put(skb, buflen); 262 header->size = cpu_to_le16(buflen); 263 header->vpi = cpu_to_le16(0); 264 header->vci = cpu_to_le16(0); 265 header->type = cpu_to_le16(PKT_COMMAND); 266 267 prm.pid = current->pid; 268 prm.response = NULL; 269 prm.port = SOLOS_CHAN(atmdev); 270 271 spin_lock_irq(&card->param_queue_lock); 272 list_add(&prm.list, &card->param_queue); 273 spin_unlock_irq(&card->param_queue_lock); 274 275 fpga_queue(card, prm.port, skb, NULL); 276 277 wait_event_timeout(card->param_wq, prm.response, 5 * HZ); 278 279 spin_lock_irq(&card->param_queue_lock); 280 list_del(&prm.list); 281 spin_unlock_irq(&card->param_queue_lock); 282 283 skb = prm.response; 284 285 if (!skb) 286 return -EIO; 287 288 buflen = skb->len; 289 290 /* Sometimes it has a newline, sometimes it doesn't. */ 291 if (skb->data[buflen - 1] == '\n') 292 buflen--; 293 294 if (buflen == 2 && !strncmp(skb->data, "OK", 2)) 295 ret = count; 296 else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5)) 297 ret = -EIO; 298 else { 299 /* We know we have enough space allocated for this; we allocated 300 it ourselves */ 301 skb->data[buflen] = 0; 302 303 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n", 304 skb->data); 305 ret = -EIO; 306 } 307 kfree_skb(skb); 308 309 return ret; 310 } 311 312 static char *next_string(struct sk_buff *skb) 313 { 314 int i = 0; 315 char *this = skb->data; 316 317 for (i = 0; i < skb->len; i++) { 318 if (this[i] == '\n') { 319 this[i] = 0; 320 skb_pull(skb, i + 1); 321 return this; 322 } 323 if (!isprint(this[i])) 324 return NULL; 325 } 326 return NULL; 327 } 328 329 /* 330 * Status packet has fields separated by \n, starting with a version number 331 * for the information therein. Fields are.... 332 * 333 * packet version 334 * RxBitRate (version >= 1) 335 * TxBitRate (version >= 1) 336 * State (version >= 1) 337 * LocalSNRMargin (version >= 1) 338 * LocalLineAttn (version >= 1) 339 */ 340 static int process_status(struct solos_card *card, int port, struct sk_buff *skb) 341 { 342 char *str, *end, *state_str, *snr, *attn; 343 int ver, rate_up, rate_down; 344 345 if (!card->atmdev[port]) 346 return -ENODEV; 347 348 str = next_string(skb); 349 if (!str) 350 return -EIO; 351 352 ver = simple_strtol(str, NULL, 10); 353 if (ver < 1) { 354 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n", 355 ver); 356 return -EIO; 357 } 358 359 str = next_string(skb); 360 if (!str) 361 return -EIO; 362 if (!strcmp(str, "ERROR")) { 363 dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n", 364 port); 365 return 0; 366 } 367 368 rate_down = simple_strtol(str, &end, 10); 369 if (*end) 370 return -EIO; 371 372 str = next_string(skb); 373 if (!str) 374 return -EIO; 375 rate_up = simple_strtol(str, &end, 10); 376 if (*end) 377 return -EIO; 378 379 state_str = next_string(skb); 380 if (!state_str) 381 return -EIO; 382 383 /* Anything but 'Showtime' is down */ 384 if (strcmp(state_str, "Showtime")) { 385 atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST); 386 dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str); 387 return 0; 388 } 389 390 snr = next_string(skb); 391 if (!snr) 392 return -EIO; 393 attn = next_string(skb); 394 if (!attn) 395 return -EIO; 396 397 dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n", 398 port, state_str, rate_down/1000, rate_up/1000, 399 snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn); 400 401 card->atmdev[port]->link_rate = rate_down / 424; 402 atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND); 403 404 return 0; 405 } 406 407 static int process_command(struct solos_card *card, int port, struct sk_buff *skb) 408 { 409 struct solos_param *prm; 410 unsigned long flags; 411 int cmdpid; 412 int found = 0; 413 414 if (skb->len < 7) 415 return 0; 416 417 if (skb->data[0] != 'L' || !isdigit(skb->data[1]) || 418 !isdigit(skb->data[2]) || !isdigit(skb->data[3]) || 419 !isdigit(skb->data[4]) || !isdigit(skb->data[5]) || 420 skb->data[6] != '\n') 421 return 0; 422 423 cmdpid = simple_strtol(&skb->data[1], NULL, 10); 424 425 spin_lock_irqsave(&card->param_queue_lock, flags); 426 list_for_each_entry(prm, &card->param_queue, list) { 427 if (prm->port == port && prm->pid == cmdpid) { 428 prm->response = skb; 429 skb_pull(skb, 7); 430 wake_up(&card->param_wq); 431 found = 1; 432 break; 433 } 434 } 435 spin_unlock_irqrestore(&card->param_queue_lock, flags); 436 return found; 437 } 438 439 static ssize_t console_show(struct device *dev, struct device_attribute *attr, 440 char *buf) 441 { 442 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); 443 struct solos_card *card = atmdev->dev_data; 444 struct sk_buff *skb; 445 unsigned int len; 446 447 spin_lock(&card->cli_queue_lock); 448 skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]); 449 spin_unlock(&card->cli_queue_lock); 450 if(skb == NULL) 451 return sprintf(buf, "No data.\n"); 452 453 len = skb->len; 454 memcpy(buf, skb->data, len); 455 dev_dbg(&card->dev->dev, "len: %d\n", len); 456 457 kfree_skb(skb); 458 return len; 459 } 460 461 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size) 462 { 463 struct sk_buff *skb; 464 struct pkt_hdr *header; 465 466 if (size > (BUF_SIZE - sizeof(*header))) { 467 dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n"); 468 return 0; 469 } 470 skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC); 471 if (!skb) { 472 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n"); 473 return 0; 474 } 475 476 header = (void *)skb_put(skb, sizeof(*header)); 477 478 header->size = cpu_to_le16(size); 479 header->vpi = cpu_to_le16(0); 480 header->vci = cpu_to_le16(0); 481 header->type = cpu_to_le16(PKT_COMMAND); 482 483 memcpy(skb_put(skb, size), buf, size); 484 485 fpga_queue(card, dev, skb, NULL); 486 487 return 0; 488 } 489 490 static ssize_t console_store(struct device *dev, struct device_attribute *attr, 491 const char *buf, size_t count) 492 { 493 struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev); 494 struct solos_card *card = atmdev->dev_data; 495 int err; 496 497 err = send_command(card, SOLOS_CHAN(atmdev), buf, count); 498 499 return err?:count; 500 } 501 502 static DEVICE_ATTR(console, 0644, console_show, console_store); 503 504 505 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL); 506 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store); 507 508 #include "solos-attrlist.c" 509 510 #undef SOLOS_ATTR_RO 511 #undef SOLOS_ATTR_RW 512 513 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr, 514 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr, 515 516 static struct attribute *solos_attrs[] = { 517 #include "solos-attrlist.c" 518 NULL 519 }; 520 521 static struct attribute_group solos_attr_group = { 522 .attrs = solos_attrs, 523 .name = "parameters", 524 }; 525 526 static int flash_upgrade(struct solos_card *card, int chip) 527 { 528 const struct firmware *fw; 529 const char *fw_name; 530 int blocksize = 0; 531 int numblocks = 0; 532 int offset; 533 534 switch (chip) { 535 case 0: 536 fw_name = "solos-FPGA.bin"; 537 blocksize = FPGA_BLOCK; 538 break; 539 case 1: 540 fw_name = "solos-Firmware.bin"; 541 blocksize = SOLOS_BLOCK; 542 break; 543 case 2: 544 if (card->fpga_version > LEGACY_BUFFERS){ 545 fw_name = "solos-db-FPGA.bin"; 546 blocksize = FPGA_BLOCK; 547 } else { 548 dev_info(&card->dev->dev, "FPGA version doesn't support" 549 " daughter board upgrades\n"); 550 return -EPERM; 551 } 552 break; 553 case 3: 554 if (card->fpga_version > LEGACY_BUFFERS){ 555 fw_name = "solos-Firmware.bin"; 556 blocksize = SOLOS_BLOCK; 557 } else { 558 dev_info(&card->dev->dev, "FPGA version doesn't support" 559 " daughter board upgrades\n"); 560 return -EPERM; 561 } 562 break; 563 default: 564 return -ENODEV; 565 } 566 567 if (request_firmware(&fw, fw_name, &card->dev->dev)) 568 return -ENOENT; 569 570 dev_info(&card->dev->dev, "Flash upgrade starting\n"); 571 572 numblocks = fw->size / blocksize; 573 dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size); 574 dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks); 575 576 dev_info(&card->dev->dev, "Changing FPGA to Update mode\n"); 577 iowrite32(1, card->config_regs + FPGA_MODE); 578 (void) ioread32(card->config_regs + FPGA_MODE); 579 580 /* Set mode to Chip Erase */ 581 if(chip == 0 || chip == 2) 582 dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n"); 583 if(chip == 1 || chip == 3) 584 dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n"); 585 iowrite32((chip * 2), card->config_regs + FLASH_MODE); 586 587 588 iowrite32(1, card->config_regs + WRITE_FLASH); 589 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); 590 591 for (offset = 0; offset < fw->size; offset += blocksize) { 592 int i; 593 594 /* Clear write flag */ 595 iowrite32(0, card->config_regs + WRITE_FLASH); 596 597 /* Set mode to Block Write */ 598 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */ 599 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE); 600 601 /* Copy block to buffer, swapping each 16 bits */ 602 for(i = 0; i < blocksize; i += 4) { 603 uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i)); 604 if(card->fpga_version > LEGACY_BUFFERS) 605 iowrite32(word, FLASH_BUF + i); 606 else 607 iowrite32(word, RX_BUF(card, 3) + i); 608 } 609 610 /* Specify block number and then trigger flash write */ 611 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK); 612 iowrite32(1, card->config_regs + WRITE_FLASH); 613 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY)); 614 } 615 616 release_firmware(fw); 617 iowrite32(0, card->config_regs + WRITE_FLASH); 618 iowrite32(0, card->config_regs + FPGA_MODE); 619 iowrite32(0, card->config_regs + FLASH_MODE); 620 dev_info(&card->dev->dev, "Returning FPGA to Data mode\n"); 621 return 0; 622 } 623 624 static irqreturn_t solos_irq(int irq, void *dev_id) 625 { 626 struct solos_card *card = dev_id; 627 int handled = 1; 628 629 iowrite32(0, card->config_regs + IRQ_CLEAR); 630 631 /* If we're up and running, just kick the tasklet to process TX/RX */ 632 if (card->atmdev[0]) 633 tasklet_schedule(&card->tlet); 634 else 635 wake_up(&card->fw_wq); 636 637 return IRQ_RETVAL(handled); 638 } 639 640 void solos_bh(unsigned long card_arg) 641 { 642 struct solos_card *card = (void *)card_arg; 643 uint32_t card_flags; 644 uint32_t rx_done = 0; 645 int port; 646 647 /* 648 * Since fpga_tx() is going to need to read the flags under its lock, 649 * it can return them to us so that we don't have to hit PCI MMIO 650 * again for the same information 651 */ 652 card_flags = fpga_tx(card); 653 654 for (port = 0; port < card->nr_ports; port++) { 655 if (card_flags & (0x10 << port)) { 656 struct pkt_hdr _hdr, *header; 657 struct sk_buff *skb; 658 struct atm_vcc *vcc; 659 int size; 660 661 if (card->using_dma) { 662 skb = card->rx_skb[port]; 663 card->rx_skb[port] = NULL; 664 665 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, 666 RX_DMA_SIZE, PCI_DMA_FROMDEVICE); 667 668 header = (void *)skb->data; 669 size = le16_to_cpu(header->size); 670 skb_put(skb, size + sizeof(*header)); 671 skb_pull(skb, sizeof(*header)); 672 } else { 673 header = &_hdr; 674 675 rx_done |= 0x10 << port; 676 677 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header)); 678 679 size = le16_to_cpu(header->size); 680 if (size > (card->buffer_size - sizeof(*header))){ 681 dev_warn(&card->dev->dev, "Invalid buffer size\n"); 682 continue; 683 } 684 685 skb = alloc_skb(size + 1, GFP_ATOMIC); 686 if (!skb) { 687 if (net_ratelimit()) 688 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n"); 689 continue; 690 } 691 692 memcpy_fromio(skb_put(skb, size), 693 RX_BUF(card, port) + sizeof(*header), 694 size); 695 } 696 if (atmdebug) { 697 dev_info(&card->dev->dev, "Received: port %d\n", port); 698 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", 699 size, le16_to_cpu(header->vpi), 700 le16_to_cpu(header->vci)); 701 print_buffer(skb); 702 } 703 704 switch (le16_to_cpu(header->type)) { 705 case PKT_DATA: 706 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi), 707 le16_to_cpu(header->vci)); 708 if (!vcc) { 709 if (net_ratelimit()) 710 dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n", 711 le16_to_cpu(header->vpi), le16_to_cpu(header->vci), 712 port); 713 continue; 714 } 715 atm_charge(vcc, skb->truesize); 716 vcc->push(vcc, skb); 717 atomic_inc(&vcc->stats->rx); 718 break; 719 720 case PKT_STATUS: 721 if (process_status(card, port, skb) && 722 net_ratelimit()) { 723 dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port); 724 print_buffer(skb); 725 } 726 dev_kfree_skb_any(skb); 727 break; 728 729 case PKT_COMMAND: 730 default: /* FIXME: Not really, surely? */ 731 if (process_command(card, port, skb)) 732 break; 733 spin_lock(&card->cli_queue_lock); 734 if (skb_queue_len(&card->cli_queue[port]) > 10) { 735 if (net_ratelimit()) 736 dev_warn(&card->dev->dev, "Dropping console response on port %d\n", 737 port); 738 dev_kfree_skb_any(skb); 739 } else 740 skb_queue_tail(&card->cli_queue[port], skb); 741 spin_unlock(&card->cli_queue_lock); 742 break; 743 } 744 } 745 /* Allocate RX skbs for any ports which need them */ 746 if (card->using_dma && card->atmdev[port] && 747 !card->rx_skb[port]) { 748 struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC); 749 if (skb) { 750 SKB_CB(skb)->dma_addr = 751 pci_map_single(card->dev, skb->data, 752 RX_DMA_SIZE, PCI_DMA_FROMDEVICE); 753 iowrite32(SKB_CB(skb)->dma_addr, 754 card->config_regs + RX_DMA_ADDR(port)); 755 card->rx_skb[port] = skb; 756 } else { 757 if (net_ratelimit()) 758 dev_warn(&card->dev->dev, "Failed to allocate RX skb"); 759 760 /* We'll have to try again later */ 761 tasklet_schedule(&card->tlet); 762 } 763 } 764 } 765 if (rx_done) 766 iowrite32(rx_done, card->config_regs + FLAGS_ADDR); 767 768 return; 769 } 770 771 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci) 772 { 773 struct hlist_head *head; 774 struct atm_vcc *vcc = NULL; 775 struct hlist_node *node; 776 struct sock *s; 777 778 read_lock(&vcc_sklist_lock); 779 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; 780 sk_for_each(s, node, head) { 781 vcc = atm_sk(s); 782 if (vcc->dev == dev && vcc->vci == vci && 783 vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE && 784 test_bit(ATM_VF_READY, &vcc->flags)) 785 goto out; 786 } 787 vcc = NULL; 788 out: 789 read_unlock(&vcc_sklist_lock); 790 return vcc; 791 } 792 793 static int list_vccs(int vci) 794 { 795 struct hlist_head *head; 796 struct atm_vcc *vcc; 797 struct hlist_node *node; 798 struct sock *s; 799 int num_found = 0; 800 int i; 801 802 read_lock(&vcc_sklist_lock); 803 if (vci != 0){ 804 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)]; 805 sk_for_each(s, node, head) { 806 num_found ++; 807 vcc = atm_sk(s); 808 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", 809 vcc->dev->number, 810 vcc->vpi, 811 vcc->vci); 812 } 813 } else { 814 for(i = 0; i < VCC_HTABLE_SIZE; i++){ 815 head = &vcc_hash[i]; 816 sk_for_each(s, node, head) { 817 num_found ++; 818 vcc = atm_sk(s); 819 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n", 820 vcc->dev->number, 821 vcc->vpi, 822 vcc->vci); 823 } 824 } 825 } 826 read_unlock(&vcc_sklist_lock); 827 return num_found; 828 } 829 830 831 static int popen(struct atm_vcc *vcc) 832 { 833 struct solos_card *card = vcc->dev->dev_data; 834 struct sk_buff *skb; 835 struct pkt_hdr *header; 836 837 if (vcc->qos.aal != ATM_AAL5) { 838 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n", 839 vcc->qos.aal); 840 return -EINVAL; 841 } 842 843 skb = alloc_skb(sizeof(*header), GFP_ATOMIC); 844 if (!skb) { 845 if (net_ratelimit()) 846 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n"); 847 return -ENOMEM; 848 } 849 header = (void *)skb_put(skb, sizeof(*header)); 850 851 header->size = cpu_to_le16(0); 852 header->vpi = cpu_to_le16(vcc->vpi); 853 header->vci = cpu_to_le16(vcc->vci); 854 header->type = cpu_to_le16(PKT_POPEN); 855 856 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); 857 858 set_bit(ATM_VF_ADDR, &vcc->flags); 859 set_bit(ATM_VF_READY, &vcc->flags); 860 list_vccs(0); 861 862 863 return 0; 864 } 865 866 static void pclose(struct atm_vcc *vcc) 867 { 868 struct solos_card *card = vcc->dev->dev_data; 869 struct sk_buff *skb; 870 struct pkt_hdr *header; 871 872 skb = alloc_skb(sizeof(*header), GFP_ATOMIC); 873 if (!skb) { 874 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n"); 875 return; 876 } 877 header = (void *)skb_put(skb, sizeof(*header)); 878 879 header->size = cpu_to_le16(0); 880 header->vpi = cpu_to_le16(vcc->vpi); 881 header->vci = cpu_to_le16(vcc->vci); 882 header->type = cpu_to_le16(PKT_PCLOSE); 883 884 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL); 885 886 clear_bit(ATM_VF_ADDR, &vcc->flags); 887 clear_bit(ATM_VF_READY, &vcc->flags); 888 889 /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the 890 tasklet has finished processing any incoming packets (and, more to 891 the point, using the vcc pointer). */ 892 tasklet_unlock_wait(&card->tlet); 893 return; 894 } 895 896 static int print_buffer(struct sk_buff *buf) 897 { 898 int len,i; 899 char msg[500]; 900 char item[10]; 901 902 len = buf->len; 903 for (i = 0; i < len; i++){ 904 if(i % 8 == 0) 905 sprintf(msg, "%02X: ", i); 906 907 sprintf(item,"%02X ",*(buf->data + i)); 908 strcat(msg, item); 909 if(i % 8 == 7) { 910 sprintf(item, "\n"); 911 strcat(msg, item); 912 printk(KERN_DEBUG "%s", msg); 913 } 914 } 915 if (i % 8 != 0) { 916 sprintf(item, "\n"); 917 strcat(msg, item); 918 printk(KERN_DEBUG "%s", msg); 919 } 920 printk(KERN_DEBUG "\n"); 921 922 return 0; 923 } 924 925 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb, 926 struct atm_vcc *vcc) 927 { 928 int old_len; 929 unsigned long flags; 930 931 SKB_CB(skb)->vcc = vcc; 932 933 spin_lock_irqsave(&card->tx_queue_lock, flags); 934 old_len = skb_queue_len(&card->tx_queue[port]); 935 skb_queue_tail(&card->tx_queue[port], skb); 936 if (!old_len) 937 card->tx_mask |= (1 << port); 938 spin_unlock_irqrestore(&card->tx_queue_lock, flags); 939 940 /* Theoretically we could just schedule the tasklet here, but 941 that introduces latency we don't want -- it's noticeable */ 942 if (!old_len) 943 fpga_tx(card); 944 } 945 946 static uint32_t fpga_tx(struct solos_card *card) 947 { 948 uint32_t tx_pending, card_flags; 949 uint32_t tx_started = 0; 950 struct sk_buff *skb; 951 struct atm_vcc *vcc; 952 unsigned char port; 953 unsigned long flags; 954 955 spin_lock_irqsave(&card->tx_lock, flags); 956 957 card_flags = ioread32(card->config_regs + FLAGS_ADDR); 958 /* 959 * The queue lock is required for _writing_ to tx_mask, but we're 960 * OK to read it here without locking. The only potential update 961 * that we could race with is in fpga_queue() where it sets a bit 962 * for a new port... but it's going to call this function again if 963 * it's doing that, anyway. 964 */ 965 tx_pending = card->tx_mask & ~card_flags; 966 967 for (port = 0; tx_pending; tx_pending >>= 1, port++) { 968 if (tx_pending & 1) { 969 struct sk_buff *oldskb = card->tx_skb[port]; 970 if (oldskb) 971 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr, 972 oldskb->len, PCI_DMA_TODEVICE); 973 974 spin_lock(&card->tx_queue_lock); 975 skb = skb_dequeue(&card->tx_queue[port]); 976 if (!skb) 977 card->tx_mask &= ~(1 << port); 978 spin_unlock(&card->tx_queue_lock); 979 980 if (skb && !card->using_dma) { 981 memcpy_toio(TX_BUF(card, port), skb->data, skb->len); 982 tx_started |= 1 << port; 983 oldskb = skb; /* We're done with this skb already */ 984 } else if (skb && card->using_dma) { 985 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data, 986 skb->len, PCI_DMA_TODEVICE); 987 iowrite32(SKB_CB(skb)->dma_addr, 988 card->config_regs + TX_DMA_ADDR(port)); 989 } 990 991 if (!oldskb) 992 continue; 993 994 /* Clean up and free oldskb now it's gone */ 995 if (atmdebug) { 996 struct pkt_hdr *header = (void *)oldskb->data; 997 int size = le16_to_cpu(header->size); 998 999 skb_pull(oldskb, sizeof(*header)); 1000 dev_info(&card->dev->dev, "Transmitted: port %d\n", 1001 port); 1002 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n", 1003 size, le16_to_cpu(header->vpi), 1004 le16_to_cpu(header->vci)); 1005 print_buffer(oldskb); 1006 } 1007 1008 vcc = SKB_CB(oldskb)->vcc; 1009 1010 if (vcc) { 1011 atomic_inc(&vcc->stats->tx); 1012 solos_pop(vcc, oldskb); 1013 } else 1014 dev_kfree_skb_irq(oldskb); 1015 1016 } 1017 } 1018 /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */ 1019 if (tx_started) 1020 iowrite32(tx_started, card->config_regs + FLAGS_ADDR); 1021 1022 spin_unlock_irqrestore(&card->tx_lock, flags); 1023 return card_flags; 1024 } 1025 1026 static int psend(struct atm_vcc *vcc, struct sk_buff *skb) 1027 { 1028 struct solos_card *card = vcc->dev->dev_data; 1029 struct pkt_hdr *header; 1030 int pktlen; 1031 1032 pktlen = skb->len; 1033 if (pktlen > (BUF_SIZE - sizeof(*header))) { 1034 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n"); 1035 solos_pop(vcc, skb); 1036 return 0; 1037 } 1038 1039 if (!skb_clone_writable(skb, sizeof(*header))) { 1040 int expand_by = 0; 1041 int ret; 1042 1043 if (skb_headroom(skb) < sizeof(*header)) 1044 expand_by = sizeof(*header) - skb_headroom(skb); 1045 1046 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC); 1047 if (ret) { 1048 dev_warn(&card->dev->dev, "pskb_expand_head failed.\n"); 1049 solos_pop(vcc, skb); 1050 return ret; 1051 } 1052 } 1053 1054 header = (void *)skb_push(skb, sizeof(*header)); 1055 1056 /* This does _not_ include the size of the header */ 1057 header->size = cpu_to_le16(pktlen); 1058 header->vpi = cpu_to_le16(vcc->vpi); 1059 header->vci = cpu_to_le16(vcc->vci); 1060 header->type = cpu_to_le16(PKT_DATA); 1061 1062 fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc); 1063 1064 return 0; 1065 } 1066 1067 static struct atmdev_ops fpga_ops = { 1068 .open = popen, 1069 .close = pclose, 1070 .ioctl = NULL, 1071 .getsockopt = NULL, 1072 .setsockopt = NULL, 1073 .send = psend, 1074 .send_oam = NULL, 1075 .phy_put = NULL, 1076 .phy_get = NULL, 1077 .change_qos = NULL, 1078 .proc_read = NULL, 1079 .owner = THIS_MODULE 1080 }; 1081 1082 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) 1083 { 1084 int err; 1085 uint16_t fpga_ver; 1086 uint8_t major_ver, minor_ver; 1087 uint32_t data32; 1088 struct solos_card *card; 1089 1090 card = kzalloc(sizeof(*card), GFP_KERNEL); 1091 if (!card) 1092 return -ENOMEM; 1093 1094 card->dev = dev; 1095 init_waitqueue_head(&card->fw_wq); 1096 init_waitqueue_head(&card->param_wq); 1097 1098 err = pci_enable_device(dev); 1099 if (err) { 1100 dev_warn(&dev->dev, "Failed to enable PCI device\n"); 1101 goto out; 1102 } 1103 1104 err = pci_set_dma_mask(dev, DMA_BIT_MASK(32)); 1105 if (err) { 1106 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n"); 1107 goto out; 1108 } 1109 1110 err = pci_request_regions(dev, "solos"); 1111 if (err) { 1112 dev_warn(&dev->dev, "Failed to request regions\n"); 1113 goto out; 1114 } 1115 1116 card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE); 1117 if (!card->config_regs) { 1118 dev_warn(&dev->dev, "Failed to ioremap config registers\n"); 1119 goto out_release_regions; 1120 } 1121 card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE); 1122 if (!card->buffers) { 1123 dev_warn(&dev->dev, "Failed to ioremap data buffers\n"); 1124 goto out_unmap_config; 1125 } 1126 1127 if (reset) { 1128 iowrite32(1, card->config_regs + FPGA_MODE); 1129 data32 = ioread32(card->config_regs + FPGA_MODE); 1130 1131 iowrite32(0, card->config_regs + FPGA_MODE); 1132 data32 = ioread32(card->config_regs + FPGA_MODE); 1133 } 1134 1135 data32 = ioread32(card->config_regs + FPGA_VER); 1136 fpga_ver = (data32 & 0x0000FFFF); 1137 major_ver = ((data32 & 0xFF000000) >> 24); 1138 minor_ver = ((data32 & 0x00FF0000) >> 16); 1139 card->fpga_version = FPGA_VERSION(major_ver,minor_ver); 1140 if (card->fpga_version > LEGACY_BUFFERS) 1141 card->buffer_size = BUF_SIZE; 1142 else 1143 card->buffer_size = OLD_BUF_SIZE; 1144 dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n", 1145 major_ver, minor_ver, fpga_ver); 1146 1147 if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade || 1148 db_fpga_upgrade || db_firmware_upgrade)) { 1149 dev_warn(&dev->dev, 1150 "FPGA too old; cannot upgrade flash. Use JTAG.\n"); 1151 fpga_upgrade = firmware_upgrade = 0; 1152 db_fpga_upgrade = db_firmware_upgrade = 0; 1153 } 1154 1155 if (card->fpga_version >= DMA_SUPPORTED){ 1156 card->using_dma = 1; 1157 } else { 1158 card->using_dma = 0; 1159 /* Set RX empty flag for all ports */ 1160 iowrite32(0xF0, card->config_regs + FLAGS_ADDR); 1161 } 1162 1163 data32 = ioread32(card->config_regs + PORTS); 1164 card->nr_ports = (data32 & 0x000000FF); 1165 1166 pci_set_drvdata(dev, card); 1167 1168 tasklet_init(&card->tlet, solos_bh, (unsigned long)card); 1169 spin_lock_init(&card->tx_lock); 1170 spin_lock_init(&card->tx_queue_lock); 1171 spin_lock_init(&card->cli_queue_lock); 1172 spin_lock_init(&card->param_queue_lock); 1173 INIT_LIST_HEAD(&card->param_queue); 1174 1175 err = request_irq(dev->irq, solos_irq, IRQF_SHARED, 1176 "solos-pci", card); 1177 if (err) { 1178 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq); 1179 goto out_unmap_both; 1180 } 1181 1182 iowrite32(1, card->config_regs + IRQ_EN_ADDR); 1183 1184 if (fpga_upgrade) 1185 flash_upgrade(card, 0); 1186 1187 if (firmware_upgrade) 1188 flash_upgrade(card, 1); 1189 1190 if (db_fpga_upgrade) 1191 flash_upgrade(card, 2); 1192 1193 if (db_firmware_upgrade) 1194 flash_upgrade(card, 3); 1195 1196 err = atm_init(card, &dev->dev); 1197 if (err) 1198 goto out_free_irq; 1199 1200 return 0; 1201 1202 out_free_irq: 1203 iowrite32(0, card->config_regs + IRQ_EN_ADDR); 1204 free_irq(dev->irq, card); 1205 tasklet_kill(&card->tlet); 1206 1207 out_unmap_both: 1208 pci_set_drvdata(dev, NULL); 1209 pci_iounmap(dev, card->config_regs); 1210 out_unmap_config: 1211 pci_iounmap(dev, card->buffers); 1212 out_release_regions: 1213 pci_release_regions(dev); 1214 out: 1215 kfree(card); 1216 return err; 1217 } 1218 1219 static int atm_init(struct solos_card *card, struct device *parent) 1220 { 1221 int i; 1222 1223 for (i = 0; i < card->nr_ports; i++) { 1224 struct sk_buff *skb; 1225 struct pkt_hdr *header; 1226 1227 skb_queue_head_init(&card->tx_queue[i]); 1228 skb_queue_head_init(&card->cli_queue[i]); 1229 1230 card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL); 1231 if (!card->atmdev[i]) { 1232 dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); 1233 atm_remove(card); 1234 return -ENODEV; 1235 } 1236 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console)) 1237 dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i); 1238 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group)) 1239 dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i); 1240 1241 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number); 1242 1243 card->atmdev[i]->ci_range.vpi_bits = 8; 1244 card->atmdev[i]->ci_range.vci_bits = 16; 1245 card->atmdev[i]->dev_data = card; 1246 card->atmdev[i]->phy_data = (void *)(unsigned long)i; 1247 atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND); 1248 1249 skb = alloc_skb(sizeof(*header), GFP_ATOMIC); 1250 if (!skb) { 1251 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n"); 1252 continue; 1253 } 1254 1255 header = (void *)skb_put(skb, sizeof(*header)); 1256 1257 header->size = cpu_to_le16(0); 1258 header->vpi = cpu_to_le16(0); 1259 header->vci = cpu_to_le16(0); 1260 header->type = cpu_to_le16(PKT_STATUS); 1261 1262 fpga_queue(card, i, skb, NULL); 1263 } 1264 return 0; 1265 } 1266 1267 static void atm_remove(struct solos_card *card) 1268 { 1269 int i; 1270 1271 for (i = 0; i < card->nr_ports; i++) { 1272 if (card->atmdev[i]) { 1273 struct sk_buff *skb; 1274 1275 dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number); 1276 1277 sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group); 1278 atm_dev_deregister(card->atmdev[i]); 1279 1280 skb = card->rx_skb[i]; 1281 if (skb) { 1282 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, 1283 RX_DMA_SIZE, PCI_DMA_FROMDEVICE); 1284 dev_kfree_skb(skb); 1285 } 1286 skb = card->tx_skb[i]; 1287 if (skb) { 1288 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, 1289 skb->len, PCI_DMA_TODEVICE); 1290 dev_kfree_skb(skb); 1291 } 1292 while ((skb = skb_dequeue(&card->tx_queue[i]))) 1293 dev_kfree_skb(skb); 1294 1295 } 1296 } 1297 } 1298 1299 static void fpga_remove(struct pci_dev *dev) 1300 { 1301 struct solos_card *card = pci_get_drvdata(dev); 1302 1303 /* Disable IRQs */ 1304 iowrite32(0, card->config_regs + IRQ_EN_ADDR); 1305 1306 /* Reset FPGA */ 1307 iowrite32(1, card->config_regs + FPGA_MODE); 1308 (void)ioread32(card->config_regs + FPGA_MODE); 1309 1310 atm_remove(card); 1311 1312 free_irq(dev->irq, card); 1313 tasklet_kill(&card->tlet); 1314 1315 /* Release device from reset */ 1316 iowrite32(0, card->config_regs + FPGA_MODE); 1317 (void)ioread32(card->config_regs + FPGA_MODE); 1318 1319 pci_iounmap(dev, card->buffers); 1320 pci_iounmap(dev, card->config_regs); 1321 1322 pci_release_regions(dev); 1323 pci_disable_device(dev); 1324 1325 pci_set_drvdata(dev, NULL); 1326 kfree(card); 1327 } 1328 1329 static struct pci_device_id fpga_pci_tbl[] __devinitdata = { 1330 { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 1331 { 0, } 1332 }; 1333 1334 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl); 1335 1336 static struct pci_driver fpga_driver = { 1337 .name = "solos", 1338 .id_table = fpga_pci_tbl, 1339 .probe = fpga_probe, 1340 .remove = fpga_remove, 1341 }; 1342 1343 1344 static int __init solos_pci_init(void) 1345 { 1346 printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION); 1347 return pci_register_driver(&fpga_driver); 1348 } 1349 1350 static void __exit solos_pci_exit(void) 1351 { 1352 pci_unregister_driver(&fpga_driver); 1353 printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION); 1354 } 1355 1356 module_init(solos_pci_init); 1357 module_exit(solos_pci_exit); 1358