git.oblomov.eu Git - linux-2.6/blob - drivers/atm/solos-pci.c

   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
  44 #define VERSION "0.07"
  45 #define PTAG "solos-pci"
  46
  47 #define CONFIG_RAM_SIZE 128
  48 #define FLAGS_ADDR      0x7C
  49 #define IRQ_EN_ADDR     0x78
  50 #define FPGA_VER        0x74
  51 #define IRQ_CLEAR       0x70
  52 #define WRITE_FLASH     0x6C
  53 #define PORTS           0x68
  54 #define FLASH_BLOCK     0x64
  55 #define FLASH_BUSY      0x60
  56 #define FPGA_MODE       0x5C
  57 #define FLASH_MODE      0x58
  58 #define TX_DMA_ADDR(port)       (0x40 + (4 * (port)))
  59 #define RX_DMA_ADDR(port)       (0x30 + (4 * (port)))
  60
  61 #define DATA_RAM_SIZE   32768
  62 #define BUF_SIZE        4096
  63 #define FPGA_PAGE       528 /* FPGA flash page size*/
  64 #define SOLOS_PAGE      512 /* Solos flash page size*/
  65 #define FPGA_BLOCK      (FPGA_PAGE * 8) /* FPGA flash block size*/
  66 #define SOLOS_BLOCK     (SOLOS_PAGE * 8) /* Solos flash block size*/
  67
  68 #define RX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2)
  69 #define TX_BUF(card, nr) ((card->buffers) + (nr)*BUF_SIZE*2 + BUF_SIZE)
  70
  71 #define RX_DMA_SIZE     2048
  72
  73 static int atmdebug = 0;
  74 static int firmware_upgrade = 0;
  75 static int fpga_upgrade = 0;
  76
  77 struct pkt_hdr {
  78         __le16 size;
  79         __le16 vpi;
  80         __le16 vci;
  81         __le16 type;
  82 };
  83
  84 struct solos_skb_cb {
  85         struct atm_vcc *vcc;
  86         uint32_t dma_addr;
  87 };
  88
  89
  90 #define SKB_CB(skb)             ((struct solos_skb_cb *)skb->cb)
  91
  92 #define PKT_DATA        0
  93 #define PKT_COMMAND     1
  94 #define PKT_POPEN       3
  95 #define PKT_PCLOSE      4
  96 #define PKT_STATUS      5
  97
  98 struct solos_card {
  99         void __iomem *config_regs;
 100         void __iomem *buffers;
 101         int nr_ports;
 102         int tx_mask;
 103         struct pci_dev *dev;
 104         struct atm_dev *atmdev[4];
 105         struct tasklet_struct tlet;
 106         spinlock_t tx_lock;
 107         spinlock_t tx_queue_lock;
 108         spinlock_t cli_queue_lock;
 109         spinlock_t param_queue_lock;
 110         struct list_head param_queue;
 111         struct sk_buff_head tx_queue[4];
 112         struct sk_buff_head cli_queue[4];
 113         struct sk_buff *tx_skb[4];
 114         struct sk_buff *rx_skb[4];
 115         wait_queue_head_t param_wq;
 116         wait_queue_head_t fw_wq;
 117         int using_dma;
 118 };
 119
 120
 121 struct solos_param {
 122         struct list_head list;
 123         pid_t pid;
 124         int port;
 125         struct sk_buff *response;
 126         wait_queue_head_t wq;
 127 };
 128
 129 #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
 130
 131 MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
 132 MODULE_DESCRIPTION("Solos PCI driver");
 133 MODULE_VERSION(VERSION);
 134 MODULE_LICENSE("GPL");
 135 MODULE_PARM_DESC(atmdebug, "Print ATM data");
 136 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
 137 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
 138 module_param(atmdebug, int, 0644);
 139 module_param(firmware_upgrade, int, 0444);
 140 module_param(fpga_upgrade, int, 0444);
 141
 142 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 143                        struct atm_vcc *vcc);
 144 static int fpga_tx(struct solos_card *);
 145 static irqreturn_t solos_irq(int irq, void *dev_id);
 146 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
 147 static int list_vccs(int vci);
 148 static void release_vccs(struct atm_dev *dev);
 149 static int atm_init(struct solos_card *);
 150 static void atm_remove(struct solos_card *);
 151 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
 152 static void solos_bh(unsigned long);
 153 static int print_buffer(struct sk_buff *buf);
 154
 155 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
 156 {
 157         if (vcc->pop)
 158                 vcc->pop(vcc, skb);
 159         else
 160                 dev_kfree_skb_any(skb);
 161 }
 162
 163 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
 164                                 char *buf)
 165 {
 166         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 167         struct solos_card *card = atmdev->dev_data;
 168         struct solos_param prm;
 169         struct sk_buff *skb;
 170         struct pkt_hdr *header;
 171         int buflen;
 172
 173         buflen = strlen(attr->attr.name) + 10;
 174
 175         skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
 176         if (!skb) {
 177                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
 178                 return -ENOMEM;
 179         }
 180
 181         header = (void *)skb_put(skb, sizeof(*header));
 182
 183         buflen = snprintf((void *)&header[1], buflen - 1,
 184                           "L%05d\n%s\n", current->pid, attr->attr.name);
 185         skb_put(skb, buflen);
 186
 187         header->size = cpu_to_le16(buflen);
 188         header->vpi = cpu_to_le16(0);
 189         header->vci = cpu_to_le16(0);
 190         header->type = cpu_to_le16(PKT_COMMAND);
 191
 192         prm.pid = current->pid;
 193         prm.response = NULL;
 194         prm.port = SOLOS_CHAN(atmdev);
 195
 196         spin_lock_irq(&card->param_queue_lock);
 197         list_add(&prm.list, &card->param_queue);
 198         spin_unlock_irq(&card->param_queue_lock);
 199
 200         fpga_queue(card, prm.port, skb, NULL);
 201
 202         wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
 203
 204         spin_lock_irq(&card->param_queue_lock);
 205         list_del(&prm.list);
 206         spin_unlock_irq(&card->param_queue_lock);
 207
 208         if (!prm.response)
 209                 return -EIO;
 210
 211         buflen = prm.response->len;
 212         memcpy(buf, prm.response->data, buflen);
 213         kfree_skb(prm.response);
 214
 215         return buflen;
 216 }
 217
 218 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
 219                                  const char *buf, size_t count)
 220 {
 221         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 222         struct solos_card *card = atmdev->dev_data;
 223         struct solos_param prm;
 224         struct sk_buff *skb;
 225         struct pkt_hdr *header;
 226         int buflen;
 227         ssize_t ret;
 228
 229         buflen = strlen(attr->attr.name) + 11 + count;
 230
 231         skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
 232         if (!skb) {
 233                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
 234                 return -ENOMEM;
 235         }
 236
 237         header = (void *)skb_put(skb, sizeof(*header));
 238
 239         buflen = snprintf((void *)&header[1], buflen - 1,
 240                           "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
 241
 242         skb_put(skb, buflen);
 243         header->size = cpu_to_le16(buflen);
 244         header->vpi = cpu_to_le16(0);
 245         header->vci = cpu_to_le16(0);
 246         header->type = cpu_to_le16(PKT_COMMAND);
 247
 248         prm.pid = current->pid;
 249         prm.response = NULL;
 250         prm.port = SOLOS_CHAN(atmdev);
 251
 252         spin_lock_irq(&card->param_queue_lock);
 253         list_add(&prm.list, &card->param_queue);
 254         spin_unlock_irq(&card->param_queue_lock);
 255
 256         fpga_queue(card, prm.port, skb, NULL);
 257
 258         wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
 259
 260         spin_lock_irq(&card->param_queue_lock);
 261         list_del(&prm.list);
 262         spin_unlock_irq(&card->param_queue_lock);
 263
 264         skb = prm.response;
 265
 266         if (!skb)
 267                 return -EIO;
 268
 269         buflen = skb->len;
 270
 271         /* Sometimes it has a newline, sometimes it doesn't. */
 272         if (skb->data[buflen - 1] == '\n')
 273                 buflen--;
 274
 275         if (buflen == 2 && !strncmp(skb->data, "OK", 2))
 276                 ret = count;
 277         else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
 278                 ret = -EIO;
 279         else {
 280                 /* We know we have enough space allocated for this; we allocated
 281                    it ourselves */
 282                 skb->data[buflen] = 0;
 283
 284                 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
 285                          skb->data);
 286                 ret = -EIO;
 287         }
 288         kfree_skb(skb);
 289
 290         return ret;
 291 }
 292
 293 static char *next_string(struct sk_buff *skb)
 294 {
 295         int i = 0;
 296         char *this = skb->data;
 297
 298         while (i < skb->len) {
 299                 if (this[i] == '\n') {
 300                         this[i] = 0;
 301                         skb_pull(skb, i);
 302                         return this;
 303                 }
 304         }
 305         return NULL;
 306 }
 307
 308 /*
 309  * Status packet has fields separated by \n, starting with a version number
 310  * for the information therein. Fields are....
 311  *
 312  *     packet version
 313  *     TxBitRate        (version >= 1)
 314  *     RxBitRate        (version >= 1)
 315  *     State            (version >= 1)
 316  */
 317 static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
 318 {
 319         char *str, *end, *state_str;
 320         int ver, rate_up, rate_down, state, snr, attn;
 321
 322         if (!card->atmdev[port])
 323                 return -ENODEV;
 324
 325         str = next_string(skb);
 326         if (!str)
 327                 return -EIO;
 328
 329         ver = simple_strtol(str, NULL, 10);
 330         if (ver < 1) {
 331                 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
 332                          ver);
 333                 return -EIO;
 334         }
 335
 336         str = next_string(skb);
 337         rate_up = simple_strtol(str, &end, 10);
 338         if (*end)
 339                 return -EIO;
 340
 341         str = next_string(skb);
 342         rate_down = simple_strtol(str, &end, 10);
 343         if (*end)
 344                 return -EIO;
 345
 346         state_str = next_string(skb);
 347         if (!strcmp(state_str, "Showtime"))
 348                 state = ATM_PHY_SIG_FOUND;
 349         else {
 350                 state = ATM_PHY_SIG_LOST;
 351                 release_vccs(card->atmdev[port]);
 352         }
 353
 354         str = next_string(skb);
 355         snr = simple_strtol(str, &end, 10);
 356         if (*end)
 357                 return -EIO;
 358
 359         str = next_string(skb);
 360         attn = simple_strtol(str, &end, 10);
 361         if (*end)
 362                 return -EIO;
 363
 364         if (state == ATM_PHY_SIG_LOST && !rate_up && !rate_down)
 365                 dev_info(&card->dev->dev, "Port %d ATM state: %s\n",
 366                          port, state_str);
 367         else
 368                 dev_info(&card->dev->dev, "Port %d ATM state: %s (%d/%d kb/s, SNR %ddB, Attn %ddB)\n",
 369                          port, state_str, rate_up/1000, rate_down/1000,
 370                          snr, attn);
 371
 372         card->atmdev[port]->link_rate = rate_down;
 373         card->atmdev[port]->signal = state;
 374
 375         return 0;
 376 }
 377
 378 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
 379 {
 380         struct solos_param *prm;
 381         unsigned long flags;
 382         int cmdpid;
 383         int found = 0;
 384
 385         if (skb->len < 7)
 386                 return 0;
 387
 388         if (skb->data[0] != 'L'    || !isdigit(skb->data[1]) ||
 389             !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
 390             !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
 391             skb->data[6] != '\n')
 392                 return 0;
 393
 394         cmdpid = simple_strtol(&skb->data[1], NULL, 10);
 395
 396         spin_lock_irqsave(&card->param_queue_lock, flags);
 397         list_for_each_entry(prm, &card->param_queue, list) {
 398                 if (prm->port == port && prm->pid == cmdpid) {
 399                         prm->response = skb;
 400                         skb_pull(skb, 7);
 401                         wake_up(&card->param_wq);
 402                         found = 1;
 403                         break;
 404                 }
 405         }
 406         spin_unlock_irqrestore(&card->param_queue_lock, flags);
 407         return found;
 408 }
 409
 410 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
 411                             char *buf)
 412 {
 413         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 414         struct solos_card *card = atmdev->dev_data;
 415         struct sk_buff *skb;
 416
 417         spin_lock(&card->cli_queue_lock);
 418         skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
 419         spin_unlock(&card->cli_queue_lock);
 420         if(skb == NULL)
 421                 return sprintf(buf, "No data.\n");
 422
 423         memcpy(buf, skb->data, skb->len);
 424         dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
 425
 426         kfree_skb(skb);
 427         return skb->len;
 428 }
 429
 430 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
 431 {
 432         struct sk_buff *skb;
 433         struct pkt_hdr *header;
 434
 435 //      dev_dbg(&card->dev->dev, "size: %d\n", size);
 436
 437         if (size > (BUF_SIZE - sizeof(*header))) {
 438                 dev_dbg(&card->dev->dev, "Command is too big.  Dropping request\n");
 439                 return 0;
 440         }
 441         skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
 442         if (!skb) {
 443                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
 444                 return 0;
 445         }
 446
 447         header = (void *)skb_put(skb, sizeof(*header));
 448
 449         header->size = cpu_to_le16(size);
 450         header->vpi = cpu_to_le16(0);
 451         header->vci = cpu_to_le16(0);
 452         header->type = cpu_to_le16(PKT_COMMAND);
 453
 454         memcpy(skb_put(skb, size), buf, size);
 455
 456         fpga_queue(card, dev, skb, NULL);
 457
 458         return 0;
 459 }
 460
 461 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
 462                              const char *buf, size_t count)
 463 {
 464         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 465         struct solos_card *card = atmdev->dev_data;
 466         int err;
 467
 468         err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
 469
 470         return err?:count;
 471 }
 472
 473 static DEVICE_ATTR(console, 0644, console_show, console_store);
 474
 475
 476 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
 477 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
 478
 479 #include "solos-attrlist.c"
 480
 481 #undef SOLOS_ATTR_RO
 482 #undef SOLOS_ATTR_RW
 483
 484 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
 485 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
 486
 487 static struct attribute *solos_attrs[] = {
 488 #include "solos-attrlist.c"
 489         NULL
 490 };
 491
 492 static struct attribute_group solos_attr_group = {
 493         .attrs = solos_attrs,
 494         .name = "parameters",
 495 };
 496
 497 static int flash_upgrade(struct solos_card *card, int chip)
 498 {
 499         const struct firmware *fw;
 500         const char *fw_name;
 501         uint32_t data32 = 0;
 502         int blocksize = 0;
 503         int numblocks = 0;
 504         int offset;
 505
 506         if (chip == 0) {
 507                 fw_name = "solos-FPGA.bin";
 508                 blocksize = FPGA_BLOCK;
 509         } else {
 510                 fw_name = "solos-Firmware.bin";
 511                 blocksize = SOLOS_BLOCK;
 512         }
 513
 514         if (request_firmware(&fw, fw_name, &card->dev->dev))
 515                 return -ENOENT;
 516
 517         dev_info(&card->dev->dev, "Flash upgrade starting\n");
 518
 519         numblocks = fw->size / blocksize;
 520         dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
 521         dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
 522
 523         dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
 524         iowrite32(1, card->config_regs + FPGA_MODE);
 525         data32 = ioread32(card->config_regs + FPGA_MODE);
 526
 527         /* Set mode to Chip Erase */
 528         dev_info(&card->dev->dev, "Set FPGA Flash mode to %s Chip Erase\n",
 529                  chip?"Solos":"FPGA");
 530         iowrite32((chip * 2), card->config_regs + FLASH_MODE);
 531
 532
 533         iowrite32(1, card->config_regs + WRITE_FLASH);
 534         wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
 535
 536         for (offset = 0; offset < fw->size; offset += blocksize) {
 537                 int i;
 538
 539                 /* Clear write flag */
 540                 iowrite32(0, card->config_regs + WRITE_FLASH);
 541
 542                 /* Set mode to Block Write */
 543                 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
 544                 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
 545
 546                 /* Copy block to buffer, swapping each 16 bits */
 547                 for(i = 0; i < blocksize; i += 4) {
 548                         uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
 549                         iowrite32(word, RX_BUF(card, 3) + i);
 550                 }
 551
 552                 /* Specify block number and then trigger flash write */
 553                 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
 554                 iowrite32(1, card->config_regs + WRITE_FLASH);
 555                 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
 556         }
 557
 558         release_firmware(fw);
 559         iowrite32(0, card->config_regs + WRITE_FLASH);
 560         iowrite32(0, card->config_regs + FPGA_MODE);
 561         iowrite32(0, card->config_regs + FLASH_MODE);
 562         dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
 563         return 0;
 564 }
 565
 566 static irqreturn_t solos_irq(int irq, void *dev_id)
 567 {
 568         struct solos_card *card = dev_id;
 569         int handled = 1;
 570
 571         //ACK IRQ
 572         iowrite32(0, card->config_regs + IRQ_CLEAR);
 573         //Disable IRQs from FPGA
 574         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
 575
 576         if (card->atmdev[0])
 577                 tasklet_schedule(&card->tlet);
 578         else
 579                 wake_up(&card->fw_wq);
 580
 581         //Enable IRQs from FPGA
 582         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
 583         return IRQ_RETVAL(handled);
 584 }
 585
 586 void solos_bh(unsigned long card_arg)
 587 {
 588         struct solos_card *card = (void *)card_arg;
 589         int port;
 590         uint32_t card_flags;
 591         uint32_t rx_done = 0;
 592
 593         card_flags = ioread32(card->config_regs + FLAGS_ADDR);
 594
 595         /* The TX bits are set if the channel is busy; clear if not. We want to
 596            invoke fpga_tx() unless _all_ the bits for active channels are set */
 597         if ((card_flags & card->tx_mask) != card->tx_mask)
 598                 fpga_tx(card);
 599
 600         for (port = 0; port < card->nr_ports; port++) {
 601                 if (card_flags & (0x10 << port)) {
 602                         struct pkt_hdr _hdr, *header;
 603                         struct sk_buff *skb;
 604                         struct atm_vcc *vcc;
 605                         int size;
 606
 607                         if (card->using_dma) {
 608                                 skb = card->rx_skb[port];
 609                                 card->rx_skb[port] = NULL;
 610
 611                                 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
 612                                                  RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
 613
 614                                 header = (void *)skb->data;
 615                                 size = le16_to_cpu(header->size);
 616                                 skb_put(skb, size + sizeof(*header));
 617                                 skb_pull(skb, sizeof(*header));
 618                         } else {
 619                                 header = &_hdr;
 620
 621                                 rx_done |= 0x10 << port;
 622
 623                                 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
 624
 625                                 size = le16_to_cpu(header->size);
 626
 627                                 skb = alloc_skb(size + 1, GFP_ATOMIC);
 628                                 if (!skb) {
 629                                         if (net_ratelimit())
 630                                                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
 631                                         continue;
 632                                 }
 633
 634                                 memcpy_fromio(skb_put(skb, size),
 635                                               RX_BUF(card, port) + sizeof(*header),
 636                                               size);
 637                         }
 638                         if (atmdebug) {
 639                                 dev_info(&card->dev->dev, "Received: device %d\n", port);
 640                                 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
 641                                          size, le16_to_cpu(header->vpi),
 642                                          le16_to_cpu(header->vci));
 643                                 print_buffer(skb);
 644                         }
 645
 646                         switch (le16_to_cpu(header->type)) {
 647                         case PKT_DATA:
 648                                 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
 649                                                le16_to_cpu(header->vci));
 650                                 if (!vcc) {
 651                                         if (net_ratelimit())
 652                                                 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
 653                                                          le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
 654                                                          port);
 655                                         continue;
 656                                 }
 657                                 atm_charge(vcc, skb->truesize);
 658                                 vcc->push(vcc, skb);
 659                                 atomic_inc(&vcc->stats->rx);
 660                                 break;
 661
 662                         case PKT_STATUS:
 663                                 process_status(card, port, skb);
 664                                 dev_kfree_skb_any(skb);
 665                                 break;
 666
 667                         case PKT_COMMAND:
 668                         default: /* FIXME: Not really, surely? */
 669                                 if (process_command(card, port, skb))
 670                                         break;
 671                                 spin_lock(&card->cli_queue_lock);
 672                                 if (skb_queue_len(&card->cli_queue[port]) > 10) {
 673                                         if (net_ratelimit())
 674                                                 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
 675                                                          port);
 676                                         dev_kfree_skb_any(skb);
 677                                 } else
 678                                         skb_queue_tail(&card->cli_queue[port], skb);
 679                                 spin_unlock(&card->cli_queue_lock);
 680                                 break;
 681                         }
 682                 }
 683                 /* Allocate RX skbs for any ports which need them */
 684                 if (card->using_dma && card->atmdev[port] &&
 685                     !card->rx_skb[port]) {
 686                         struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
 687                         if (skb) {
 688                                 SKB_CB(skb)->dma_addr =
 689                                         pci_map_single(card->dev, skb->data,
 690                                                        RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
 691                                 iowrite32(SKB_CB(skb)->dma_addr,
 692                                           card->config_regs + RX_DMA_ADDR(port));
 693                                 card->rx_skb[port] = skb;
 694                         } else {
 695                                 if (net_ratelimit())
 696                                         dev_warn(&card->dev->dev, "Failed to allocate RX skb");
 697
 698                                 /* We'll have to try again later */
 699                                 tasklet_schedule(&card->tlet);
 700                         }
 701                 }
 702         }
 703         if (rx_done)
 704                 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
 705
 706         return;
 707 }
 708
 709 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
 710 {
 711         struct hlist_head *head;
 712         struct atm_vcc *vcc = NULL;
 713         struct hlist_node *node;
 714         struct sock *s;
 715
 716         read_lock(&vcc_sklist_lock);
 717         head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 718         sk_for_each(s, node, head) {
 719                 vcc = atm_sk(s);
 720                 if (vcc->dev == dev && vcc->vci == vci &&
 721                     vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
 722                         goto out;
 723         }
 724         vcc = NULL;
 725  out:
 726         read_unlock(&vcc_sklist_lock);
 727         return vcc;
 728 }
 729
 730 static int list_vccs(int vci)
 731 {
 732         struct hlist_head *head;
 733         struct atm_vcc *vcc;
 734         struct hlist_node *node;
 735         struct sock *s;
 736         int num_found = 0;
 737         int i;
 738
 739         read_lock(&vcc_sklist_lock);
 740         if (vci != 0){
 741                 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 742                 sk_for_each(s, node, head) {
 743                         num_found ++;
 744                         vcc = atm_sk(s);
 745                         printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 746                                vcc->dev->number,
 747                                vcc->vpi,
 748                                vcc->vci);
 749                 }
 750         } else {
 751                 for(i = 0; i < VCC_HTABLE_SIZE; i++){
 752                         head = &vcc_hash[i];
 753                         sk_for_each(s, node, head) {
 754                                 num_found ++;
 755                                 vcc = atm_sk(s);
 756                                 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 757                                        vcc->dev->number,
 758                                        vcc->vpi,
 759                                        vcc->vci);
 760                         }
 761                 }
 762         }
 763         read_unlock(&vcc_sklist_lock);
 764         return num_found;
 765 }
 766
 767 static void release_vccs(struct atm_dev *dev)
 768 {
 769         int i;
 770
 771         write_lock_irq(&vcc_sklist_lock);
 772         for (i = 0; i < VCC_HTABLE_SIZE; i++) {
 773                 struct hlist_head *head = &vcc_hash[i];
 774                 struct hlist_node *node, *tmp;
 775                 struct sock *s;
 776                 struct atm_vcc *vcc;
 777
 778                 sk_for_each_safe(s, node, tmp, head) {
 779                         vcc = atm_sk(s);
 780                         if (vcc->dev == dev) {
 781                                 vcc_release_async(vcc, -EPIPE);
 782                                 sk_del_node_init(s);
 783                         }
 784                 }
 785         }
 786         write_unlock_irq(&vcc_sklist_lock);
 787 }
 788
 789
 790 static int popen(struct atm_vcc *vcc)
 791 {
 792         struct solos_card *card = vcc->dev->dev_data;
 793         struct sk_buff *skb;
 794         struct pkt_hdr *header;
 795
 796         if (vcc->qos.aal != ATM_AAL5) {
 797                 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
 798                          vcc->qos.aal);
 799                 return -EINVAL;
 800         }
 801
 802         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 803         if (!skb && net_ratelimit()) {
 804                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
 805                 return -ENOMEM;
 806         }
 807         header = (void *)skb_put(skb, sizeof(*header));
 808
 809         header->size = cpu_to_le16(0);
 810         header->vpi = cpu_to_le16(vcc->vpi);
 811         header->vci = cpu_to_le16(vcc->vci);
 812         header->type = cpu_to_le16(PKT_POPEN);
 813
 814         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 815
 816 //      dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 817         set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci
 818         set_bit(ATM_VF_READY, &vcc->flags);
 819         list_vccs(0);
 820
 821
 822         return 0;
 823 }
 824
 825 static void pclose(struct atm_vcc *vcc)
 826 {
 827         struct solos_card *card = vcc->dev->dev_data;
 828         struct sk_buff *skb;
 829         struct pkt_hdr *header;
 830
 831         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 832         if (!skb) {
 833                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
 834                 return;
 835         }
 836         header = (void *)skb_put(skb, sizeof(*header));
 837
 838         header->size = cpu_to_le16(0);
 839         header->vpi = cpu_to_le16(vcc->vpi);
 840         header->vci = cpu_to_le16(vcc->vci);
 841         header->type = cpu_to_le16(PKT_PCLOSE);
 842
 843         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 844
 845 //      dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 846
 847         clear_bit(ATM_VF_ADDR, &vcc->flags);
 848         clear_bit(ATM_VF_READY, &vcc->flags);
 849
 850         return;
 851 }
 852
 853 static int print_buffer(struct sk_buff *buf)
 854 {
 855         int len,i;
 856         char msg[500];
 857         char item[10];
 858
 859         len = buf->len;
 860         for (i = 0; i < len; i++){
 861                 if(i % 8 == 0)
 862                         sprintf(msg, "%02X: ", i);
 863
 864                 sprintf(item,"%02X ",*(buf->data + i));
 865                 strcat(msg, item);
 866                 if(i % 8 == 7) {
 867                         sprintf(item, "\n");
 868                         strcat(msg, item);
 869                         printk(KERN_DEBUG "%s", msg);
 870                 }
 871         }
 872         if (i % 8 != 0) {
 873                 sprintf(item, "\n");
 874                 strcat(msg, item);
 875                 printk(KERN_DEBUG "%s", msg);
 876         }
 877         printk(KERN_DEBUG "\n");
 878
 879         return 0;
 880 }
 881
 882 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 883                        struct atm_vcc *vcc)
 884 {
 885         int old_len;
 886         unsigned long flags;
 887
 888         SKB_CB(skb)->vcc = vcc;
 889
 890         spin_lock_irqsave(&card->tx_queue_lock, flags);
 891         old_len = skb_queue_len(&card->tx_queue[port]);
 892         skb_queue_tail(&card->tx_queue[port], skb);
 893         if (!old_len) {
 894                 card->tx_mask |= (1 << port);
 895         }
 896         spin_unlock_irqrestore(&card->tx_queue_lock, flags);
 897
 898         /* Theoretically we could just schedule the tasklet here, but
 899            that introduces latency we don't want -- it's noticeable */
 900         if (!old_len)
 901                 fpga_tx(card);
 902 }
 903
 904 static int fpga_tx(struct solos_card *card)
 905 {
 906         uint32_t tx_pending;
 907         uint32_t tx_started = 0;
 908         struct sk_buff *skb;
 909         struct atm_vcc *vcc;
 910         unsigned char port;
 911         unsigned long flags;
 912
 913         spin_lock_irqsave(&card->tx_lock, flags);
 914
 915         tx_pending = ioread32(card->config_regs + FLAGS_ADDR) & card->tx_mask;
 916
 917         dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending);
 918
 919         for (port = 0; port < card->nr_ports; port++) {
 920                 if (card->atmdev[port] && !(tx_pending & (1 << port))) {
 921                         struct sk_buff *oldskb = card->tx_skb[port];
 922
 923                         if (oldskb)
 924                                 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
 925                                                  oldskb->len, PCI_DMA_TODEVICE);
 926
 927                         spin_lock(&card->tx_queue_lock);
 928                         skb = skb_dequeue(&card->tx_queue[port]);
 929                         if (!skb)
 930                                 card->tx_mask &= ~(1 << port);
 931                         spin_unlock(&card->tx_queue_lock);
 932
 933                         if (skb && !card->using_dma) {
 934                                 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
 935                                 tx_started |= 1 << port; //Set TX full flag
 936                                 oldskb = skb; /* We're done with this skb already */
 937                         } else if (skb && card->using_dma) {
 938                                 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
 939                                                                        skb->len, PCI_DMA_TODEVICE);
 940                                 iowrite32(SKB_CB(skb)->dma_addr,
 941                                           card->config_regs + TX_DMA_ADDR(port));
 942                         }
 943
 944                         if (!oldskb)
 945                                 continue;
 946
 947                         /* Clean up and free oldskb now it's gone */
 948                         if (atmdebug) {
 949                                 dev_info(&card->dev->dev, "Transmitted: port %d\n",
 950                                          port);
 951                                 print_buffer(oldskb);
 952                         }
 953
 954                         vcc = SKB_CB(oldskb)->vcc;
 955
 956                         if (vcc) {
 957                                 atomic_inc(&vcc->stats->tx);
 958                                 solos_pop(vcc, oldskb);
 959                         } else
 960                                 dev_kfree_skb_irq(oldskb);
 961
 962                 }
 963         }
 964         if (tx_started)
 965                 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
 966
 967         spin_unlock_irqrestore(&card->tx_lock, flags);
 968         return 0;
 969 }
 970
 971 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
 972 {
 973         struct solos_card *card = vcc->dev->dev_data;
 974         struct pkt_hdr *header;
 975         int pktlen;
 976
 977         //dev_dbg(&card->dev->dev, "psend called.\n");
 978         //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci);
 979
 980         pktlen = skb->len;
 981         if (pktlen > (BUF_SIZE - sizeof(*header))) {
 982                 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
 983                 solos_pop(vcc, skb);
 984                 return 0;
 985         }
 986
 987         if (!skb_clone_writable(skb, sizeof(*header))) {
 988                 int expand_by = 0;
 989                 int ret;
 990
 991                 if (skb_headroom(skb) < sizeof(*header))
 992                         expand_by = sizeof(*header) - skb_headroom(skb);
 993
 994                 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
 995                 if (ret) {
 996                         dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
 997                         solos_pop(vcc, skb);
 998                         return ret;
 999                 }
1000         }
1001
1002         header = (void *)skb_push(skb, sizeof(*header));
1003
1004         /* This does _not_ include the size of the header */
1005         header->size = cpu_to_le16(pktlen);
1006         header->vpi = cpu_to_le16(vcc->vpi);
1007         header->vci = cpu_to_le16(vcc->vci);
1008         header->type = cpu_to_le16(PKT_DATA);
1009
1010         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1011
1012         return 0;
1013 }
1014
1015 static struct atmdev_ops fpga_ops = {
1016         .open =         popen,
1017         .close =        pclose,
1018         .ioctl =        NULL,
1019         .getsockopt =   NULL,
1020         .setsockopt =   NULL,
1021         .send =         psend,
1022         .send_oam =     NULL,
1023         .phy_put =      NULL,
1024         .phy_get =      NULL,
1025         .change_qos =   NULL,
1026         .proc_read =    NULL,
1027         .owner =        THIS_MODULE
1028 };
1029
1030 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1031 {
1032         int err, i;
1033         uint16_t fpga_ver;
1034         uint8_t major_ver, minor_ver;
1035         uint32_t data32;
1036         struct solos_card *card;
1037
1038         card = kzalloc(sizeof(*card), GFP_KERNEL);
1039         if (!card)
1040                 return -ENOMEM;
1041
1042         card->dev = dev;
1043         init_waitqueue_head(&card->fw_wq);
1044         init_waitqueue_head(&card->param_wq);
1045
1046         err = pci_enable_device(dev);
1047         if (err) {
1048                 dev_warn(&dev->dev,  "Failed to enable PCI device\n");
1049                 goto out;
1050         }
1051
1052         err = pci_set_dma_mask(dev, DMA_32BIT_MASK);
1053         if (err) {
1054                 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1055                 goto out;
1056         }
1057
1058         err = pci_request_regions(dev, "solos");
1059         if (err) {
1060                 dev_warn(&dev->dev, "Failed to request regions\n");
1061                 goto out;
1062         }
1063
1064         card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1065         if (!card->config_regs) {
1066                 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1067                 goto out_release_regions;
1068         }
1069         card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1070         if (!card->buffers) {
1071                 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1072                 goto out_unmap_config;
1073         }
1074
1075 //      for(i=0;i<64 ;i+=4){
1076 //              data32=ioread32(card->buffers + i);
1077 //              dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32);
1078 //      }
1079
1080         //Fill Config Mem with zeros
1081         for(i = 0; i < 128; i += 4)
1082                 iowrite32(0, card->config_regs + i);
1083
1084         //Set RX empty flags
1085         iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1086
1087         data32 = ioread32(card->config_regs + FPGA_VER);
1088         fpga_ver = (data32 & 0x0000FFFF);
1089         major_ver = ((data32 & 0xFF000000) >> 24);
1090         minor_ver = ((data32 & 0x00FF0000) >> 16);
1091         dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1092                  major_ver, minor_ver, fpga_ver);
1093
1094         if (fpga_ver > 27)
1095                 card->using_dma = 1;
1096
1097         card->nr_ports = 2; /* FIXME: Detect daughterboard */
1098
1099         pci_set_drvdata(dev, card);
1100
1101         tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1102         spin_lock_init(&card->tx_lock);
1103         spin_lock_init(&card->tx_queue_lock);
1104         spin_lock_init(&card->cli_queue_lock);
1105         spin_lock_init(&card->param_queue_lock);
1106         INIT_LIST_HEAD(&card->param_queue);
1107
1108 /*
1109         // Set Loopback mode
1110         data32 = 0x00010000;
1111         iowrite32(data32,card->config_regs + FLAGS_ADDR);
1112 */
1113 /*
1114         // Fill Buffers with zeros
1115         for (i = 0; i < BUF_SIZE * 8; i += 4)
1116                 iowrite32(0, card->buffers + i);
1117 */
1118 /*
1119         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1120                 iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE));
1121         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1122                 iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE));
1123
1124         // Read Config Memory
1125         printk(KERN_DEBUG "Reading Config MEM\n");
1126         i = 0;
1127         for(i = 0; i < 16; i++) {
1128                 data32=ioread32(card->buffers + i*(BUF_SIZE/2));
1129                 printk(KERN_ALERT "Addr: %lX Data: %08lX\n",
1130                        (unsigned long)(addr_start + i*(BUF_SIZE/2)),
1131                        (unsigned long)data32);
1132         }
1133 */
1134         //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq);
1135         err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED,
1136                           "solos-pci", card);
1137         if (err) {
1138                 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1139                 goto out_unmap_both;
1140         }
1141
1142         // Enable IRQs
1143         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1144
1145         if (fpga_upgrade)
1146                 flash_upgrade(card, 0);
1147
1148         if (firmware_upgrade)
1149                 flash_upgrade(card, 1);
1150
1151         err = atm_init(card);
1152         if (err)
1153                 goto out_free_irq;
1154
1155         return 0;
1156
1157  out_free_irq:
1158         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1159         free_irq(dev->irq, card);
1160         tasklet_kill(&card->tlet);
1161
1162  out_unmap_both:
1163         pci_set_drvdata(dev, NULL);
1164         pci_iounmap(dev, card->config_regs);
1165  out_unmap_config:
1166         pci_iounmap(dev, card->buffers);
1167  out_release_regions:
1168         pci_release_regions(dev);
1169  out:
1170         return err;
1171 }
1172
1173 static int atm_init(struct solos_card *card)
1174 {
1175         int i;
1176
1177         for (i = 0; i < card->nr_ports; i++) {
1178                 struct sk_buff *skb;
1179                 struct pkt_hdr *header;
1180
1181                 skb_queue_head_init(&card->tx_queue[i]);
1182                 skb_queue_head_init(&card->cli_queue[i]);
1183
1184                 card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
1185                 if (!card->atmdev[i]) {
1186                         dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1187                         atm_remove(card);
1188                         return -ENODEV;
1189                 }
1190                 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1191                         dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1192                 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1193                         dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1194
1195                 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1196
1197                 card->atmdev[i]->ci_range.vpi_bits = 8;
1198                 card->atmdev[i]->ci_range.vci_bits = 16;
1199                 card->atmdev[i]->dev_data = card;
1200                 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1201                 card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN;
1202
1203                 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1204                 if (!skb) {
1205                         dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1206                         continue;
1207                 }
1208
1209                 header = (void *)skb_put(skb, sizeof(*header));
1210
1211                 header->size = cpu_to_le16(0);
1212                 header->vpi = cpu_to_le16(0);
1213                 header->vci = cpu_to_le16(0);
1214                 header->type = cpu_to_le16(PKT_STATUS);
1215
1216                 fpga_queue(card, i, skb, NULL);
1217         }
1218         return 0;
1219 }
1220
1221 static void atm_remove(struct solos_card *card)
1222 {
1223         int i;
1224
1225         for (i = 0; i < card->nr_ports; i++) {
1226                 if (card->atmdev[i]) {
1227                         dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1228
1229                         sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1230                         atm_dev_deregister(card->atmdev[i]);
1231                 }
1232         }
1233 }
1234
1235 static void fpga_remove(struct pci_dev *dev)
1236 {
1237         struct solos_card *card = pci_get_drvdata(dev);
1238
1239         atm_remove(card);
1240
1241         dev_vdbg(&dev->dev, "Freeing IRQ\n");
1242         // Disable IRQs from FPGA
1243         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1244         free_irq(dev->irq, card);
1245         tasklet_kill(&card->tlet);
1246
1247         //      iowrite32(0x01,pciregs);
1248         dev_vdbg(&dev->dev, "Unmapping PCI resource\n");
1249         pci_iounmap(dev, card->buffers);
1250         pci_iounmap(dev, card->config_regs);
1251
1252         dev_vdbg(&dev->dev, "Releasing PCI Region\n");
1253         pci_release_regions(dev);
1254         pci_disable_device(dev);
1255
1256         pci_set_drvdata(dev, NULL);
1257         kfree(card);
1258 //      dev_dbg(&card->dev->dev, "fpga_remove\n");
1259         return;
1260 }
1261
1262 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1263         { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1264         { 0, }
1265 };
1266
1267 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1268
1269 static struct pci_driver fpga_driver = {
1270         .name =         "solos",
1271         .id_table =     fpga_pci_tbl,
1272         .probe =        fpga_probe,
1273         .remove =       fpga_remove,
1274 };
1275
1276
1277 static int __init solos_pci_init(void)
1278 {
1279         printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1280         return pci_register_driver(&fpga_driver);
1281 }
1282
1283 static void __exit solos_pci_exit(void)
1284 {
1285         pci_unregister_driver(&fpga_driver);
1286         printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1287 }
1288
1289 module_init(solos_pci_init);
1290 module_exit(solos_pci_exit);