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 static int debug = 0;
  72 static int atmdebug = 0;
  73 static int firmware_upgrade = 0;
  74 static int fpga_upgrade = 0;
  75
  76 struct pkt_hdr {
  77         __le16 size;
  78         __le16 vpi;
  79         __le16 vci;
  80         __le16 type;
  81 };
  82
  83 struct solos_skb_cb {
  84         struct atm_vcc *vcc;
  85         uint32_t dma_addr;
  86 };
  87
  88
  89 #define SKB_CB(skb)             ((struct solos_skb_cb *)skb->cb)
  90
  91 #define PKT_DATA        0
  92 #define PKT_COMMAND     1
  93 #define PKT_POPEN       3
  94 #define PKT_PCLOSE      4
  95 #define PKT_STATUS      5
  96
  97 struct solos_card {
  98         void __iomem *config_regs;
  99         void __iomem *buffers;
 100         int nr_ports;
 101         struct pci_dev *dev;
 102         struct atm_dev *atmdev[4];
 103         struct tasklet_struct tlet;
 104         spinlock_t tx_lock;
 105         spinlock_t tx_queue_lock;
 106         spinlock_t cli_queue_lock;
 107         spinlock_t param_queue_lock;
 108         struct list_head param_queue;
 109         struct sk_buff_head tx_queue[4];
 110         struct sk_buff_head cli_queue[4];
 111         struct sk_buff *tx_skb[4];
 112         struct sk_buff *rx_skb[4];
 113         wait_queue_head_t param_wq;
 114         wait_queue_head_t fw_wq;
 115         int using_dma;
 116 };
 117
 118
 119 struct solos_param {
 120         struct list_head list;
 121         pid_t pid;
 122         int port;
 123         struct sk_buff *response;
 124         wait_queue_head_t wq;
 125 };
 126
 127 #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
 128
 129 MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
 130 MODULE_DESCRIPTION("Solos PCI driver");
 131 MODULE_VERSION(VERSION);
 132 MODULE_LICENSE("GPL");
 133 MODULE_PARM_DESC(debug, "Enable Loopback");
 134 MODULE_PARM_DESC(atmdebug, "Print ATM data");
 135 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
 136 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
 137 module_param(debug, int, 0444);
 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 tx_mask;
 592         uint32_t rx_done = 0;
 593
 594         card_flags = ioread32(card->config_regs + FLAGS_ADDR);
 595
 596         /* The TX bits are set if the channel is busy; clear if not. We want to
 597            invoke fpga_tx() unless _all_ the bits for active channels are set */
 598         tx_mask = (1 << card->nr_ports) - 1;
 599         if ((card_flags & tx_mask) != tx_mask)
 600                 fpga_tx(card);
 601
 602         for (port = 0; port < card->nr_ports; port++) {
 603                 if (card_flags & (0x10 << port)) {
 604                         struct pkt_hdr _hdr, *header;
 605                         struct sk_buff *skb;
 606                         struct atm_vcc *vcc;
 607                         int size;
 608
 609                         if (card->using_dma) {
 610                                 skb = card->rx_skb[port];
 611                                 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr, skb->len,
 612                                                  PCI_DMA_FROMDEVICE);
 613
 614                                 card->rx_skb[port] = alloc_skb(2048, GFP_ATOMIC);
 615                                 if (card->rx_skb[port]) {
 616                                         SKB_CB(card->rx_skb[port])->dma_addr =
 617                                                 pci_map_single(card->dev, skb->data, skb->len,
 618                                                                PCI_DMA_FROMDEVICE);
 619                                         iowrite32(SKB_CB(card->rx_skb[port])->dma_addr,
 620                                                   card->config_regs + RX_DMA_ADDR(port));
 621                                 }
 622                                 header = (void *)skb->data;
 623                                 size = le16_to_cpu(header->size);
 624                                 skb_put(skb, size + sizeof(*header));
 625                                 skb_pull(skb, sizeof(*header));
 626                         } else {
 627                                 header = &_hdr;
 628
 629                                 rx_done |= 0x10 << port;
 630
 631                                 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
 632
 633                                 size = le16_to_cpu(header->size);
 634
 635                                 skb = alloc_skb(size + 1, GFP_ATOMIC);
 636                                 if (!skb) {
 637                                         if (net_ratelimit())
 638                                                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
 639                                         continue;
 640                                 }
 641
 642                                 memcpy_fromio(skb_put(skb, size),
 643                                               RX_BUF(card, port) + sizeof(*header),
 644                                               size);
 645                         }
 646                         if (atmdebug) {
 647                                 dev_info(&card->dev->dev, "Received: device %d\n", port);
 648                                 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
 649                                          size, le16_to_cpu(header->vpi),
 650                                          le16_to_cpu(header->vci));
 651                                 print_buffer(skb);
 652                         }
 653
 654                         switch (le16_to_cpu(header->type)) {
 655                         case PKT_DATA:
 656                                 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
 657                                                le16_to_cpu(header->vci));
 658                                 if (!vcc) {
 659                                         if (net_ratelimit())
 660                                                 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
 661                                                          le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
 662                                                          port);
 663                                         continue;
 664                                 }
 665                                 atm_charge(vcc, skb->truesize);
 666                                 vcc->push(vcc, skb);
 667                                 atomic_inc(&vcc->stats->rx);
 668                                 break;
 669
 670                         case PKT_STATUS:
 671                                 process_status(card, port, skb);
 672                                 dev_kfree_skb(skb);
 673                                 break;
 674
 675                         case PKT_COMMAND:
 676                         default: /* FIXME: Not really, surely? */
 677                                 if (process_command(card, port, skb))
 678                                         break;
 679                                 spin_lock(&card->cli_queue_lock);
 680                                 if (skb_queue_len(&card->cli_queue[port]) > 10) {
 681                                         if (net_ratelimit())
 682                                                 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
 683                                                          port);
 684                                 } else
 685                                         skb_queue_tail(&card->cli_queue[port], skb);
 686                                 spin_unlock(&card->cli_queue_lock);
 687                                 break;
 688                         }
 689                 }
 690         }
 691         if (rx_done)
 692                 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
 693
 694         return;
 695 }
 696
 697 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
 698 {
 699         struct hlist_head *head;
 700         struct atm_vcc *vcc = NULL;
 701         struct hlist_node *node;
 702         struct sock *s;
 703
 704         read_lock(&vcc_sklist_lock);
 705         head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 706         sk_for_each(s, node, head) {
 707                 vcc = atm_sk(s);
 708                 if (vcc->dev == dev && vcc->vci == vci &&
 709                     vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
 710                         goto out;
 711         }
 712         vcc = NULL;
 713  out:
 714         read_unlock(&vcc_sklist_lock);
 715         return vcc;
 716 }
 717
 718 static int list_vccs(int vci)
 719 {
 720         struct hlist_head *head;
 721         struct atm_vcc *vcc;
 722         struct hlist_node *node;
 723         struct sock *s;
 724         int num_found = 0;
 725         int i;
 726
 727         read_lock(&vcc_sklist_lock);
 728         if (vci != 0){
 729                 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 730                 sk_for_each(s, node, head) {
 731                         num_found ++;
 732                         vcc = atm_sk(s);
 733                         printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 734                                vcc->dev->number,
 735                                vcc->vpi,
 736                                vcc->vci);
 737                 }
 738         } else {
 739                 for(i = 0; i < VCC_HTABLE_SIZE; i++){
 740                         head = &vcc_hash[i];
 741                         sk_for_each(s, node, head) {
 742                                 num_found ++;
 743                                 vcc = atm_sk(s);
 744                                 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 745                                        vcc->dev->number,
 746                                        vcc->vpi,
 747                                        vcc->vci);
 748                         }
 749                 }
 750         }
 751         read_unlock(&vcc_sklist_lock);
 752         return num_found;
 753 }
 754
 755 static void release_vccs(struct atm_dev *dev)
 756 {
 757         int i;
 758
 759         write_lock_irq(&vcc_sklist_lock);
 760         for (i = 0; i < VCC_HTABLE_SIZE; i++) {
 761                 struct hlist_head *head = &vcc_hash[i];
 762                 struct hlist_node *node, *tmp;
 763                 struct sock *s;
 764                 struct atm_vcc *vcc;
 765
 766                 sk_for_each_safe(s, node, tmp, head) {
 767                         vcc = atm_sk(s);
 768                         if (vcc->dev == dev) {
 769                                 vcc_release_async(vcc, -EPIPE);
 770                                 sk_del_node_init(s);
 771                         }
 772                 }
 773         }
 774         write_unlock_irq(&vcc_sklist_lock);
 775 }
 776
 777
 778 static int popen(struct atm_vcc *vcc)
 779 {
 780         struct solos_card *card = vcc->dev->dev_data;
 781         struct sk_buff *skb;
 782         struct pkt_hdr *header;
 783
 784         if (vcc->qos.aal != ATM_AAL5) {
 785                 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
 786                          vcc->qos.aal);
 787                 return -EINVAL;
 788         }
 789
 790         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 791         if (!skb && net_ratelimit()) {
 792                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
 793                 return -ENOMEM;
 794         }
 795         header = (void *)skb_put(skb, sizeof(*header));
 796
 797         header->size = cpu_to_le16(0);
 798         header->vpi = cpu_to_le16(vcc->vpi);
 799         header->vci = cpu_to_le16(vcc->vci);
 800         header->type = cpu_to_le16(PKT_POPEN);
 801
 802         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 803
 804 //      dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 805         set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci
 806         set_bit(ATM_VF_READY, &vcc->flags);
 807         list_vccs(0);
 808
 809
 810         return 0;
 811 }
 812
 813 static void pclose(struct atm_vcc *vcc)
 814 {
 815         struct solos_card *card = vcc->dev->dev_data;
 816         struct sk_buff *skb;
 817         struct pkt_hdr *header;
 818
 819         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 820         if (!skb) {
 821                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
 822                 return;
 823         }
 824         header = (void *)skb_put(skb, sizeof(*header));
 825
 826         header->size = cpu_to_le16(0);
 827         header->vpi = cpu_to_le16(vcc->vpi);
 828         header->vci = cpu_to_le16(vcc->vci);
 829         header->type = cpu_to_le16(PKT_PCLOSE);
 830
 831         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 832
 833 //      dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 834
 835         clear_bit(ATM_VF_ADDR, &vcc->flags);
 836         clear_bit(ATM_VF_READY, &vcc->flags);
 837
 838         return;
 839 }
 840
 841 static int print_buffer(struct sk_buff *buf)
 842 {
 843         int len,i;
 844         char msg[500];
 845         char item[10];
 846
 847         len = buf->len;
 848         for (i = 0; i < len; i++){
 849                 if(i % 8 == 0)
 850                         sprintf(msg, "%02X: ", i);
 851
 852                 sprintf(item,"%02X ",*(buf->data + i));
 853                 strcat(msg, item);
 854                 if(i % 8 == 7) {
 855                         sprintf(item, "\n");
 856                         strcat(msg, item);
 857                         printk(KERN_DEBUG "%s", msg);
 858                 }
 859         }
 860         if (i % 8 != 0) {
 861                 sprintf(item, "\n");
 862                 strcat(msg, item);
 863                 printk(KERN_DEBUG "%s", msg);
 864         }
 865         printk(KERN_DEBUG "\n");
 866
 867         return 0;
 868 }
 869
 870 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 871                        struct atm_vcc *vcc)
 872 {
 873         int old_len;
 874
 875         SKB_CB(skb)->vcc = vcc;
 876
 877         spin_lock(&card->tx_queue_lock);
 878         old_len = skb_queue_len(&card->tx_queue[port]);
 879         skb_queue_tail(&card->tx_queue[port], skb);
 880         spin_unlock(&card->tx_queue_lock);
 881
 882         /* If TX might need to be started, do so */
 883         if (!old_len)
 884                 fpga_tx(card);
 885 }
 886
 887 static int fpga_tx(struct solos_card *card)
 888 {
 889         uint32_t tx_pending;
 890         uint32_t tx_started = 0;
 891         struct sk_buff *skb;
 892         struct atm_vcc *vcc;
 893         unsigned char port;
 894         unsigned long flags;
 895
 896         spin_lock_irqsave(&card->tx_lock, flags);
 897
 898         tx_pending = ioread32(card->config_regs + FLAGS_ADDR);
 899
 900         dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending);
 901
 902         for (port = 0; port < card->nr_ports; port++) {
 903                 if (card->atmdev[port] && !(tx_pending & (1 << port))) {
 904
 905                         spin_lock(&card->tx_queue_lock);
 906                         skb = skb_dequeue(&card->tx_queue[port]);
 907                         spin_unlock(&card->tx_queue_lock);
 908
 909                         if (!skb)
 910                                 continue;
 911
 912                         if (atmdebug) {
 913                                 dev_info(&card->dev->dev, "Transmitted: port %d\n",
 914                                          port);
 915                                 print_buffer(skb);
 916                         }
 917                         if (card->using_dma) {
 918                                 if (card->tx_skb[port]) {
 919                                         struct sk_buff *oldskb = card->tx_skb[port];
 920
 921                                         pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
 922                                                          oldskb->len, PCI_DMA_TODEVICE);
 923
 924                                         vcc = SKB_CB(oldskb)->vcc;
 925
 926                                         if (vcc) {
 927                                                 atomic_inc(&vcc->stats->tx);
 928                                                 solos_pop(vcc, oldskb);
 929                                         } else
 930                                                 dev_kfree_skb_irq(oldskb);
 931                                 }
 932
 933                                 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
 934                                                                skb->len, PCI_DMA_TODEVICE);
 935                                 iowrite32(SKB_CB(skb)->dma_addr, card->config_regs + TX_DMA_ADDR(port));
 936                         } else {
 937                                 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
 938                                 tx_started |= 1 << port; //Set TX full flag
 939
 940                                 vcc = SKB_CB(skb)->vcc;
 941
 942                                 if (vcc) {
 943                                         atomic_inc(&vcc->stats->tx);
 944                                         solos_pop(vcc, skb);
 945                                 } else
 946                                         dev_kfree_skb_irq(skb);
 947                         }
 948                 }
 949         }
 950         if (tx_started)
 951                 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
 952
 953         spin_unlock_irqrestore(&card->tx_lock, flags);
 954         return 0;
 955 }
 956
 957 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
 958 {
 959         struct solos_card *card = vcc->dev->dev_data;
 960         struct sk_buff *skb2 = NULL;
 961         struct pkt_hdr *header;
 962         int pktlen;
 963
 964         //dev_dbg(&card->dev->dev, "psend called.\n");
 965         //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci);
 966
 967         if (debug) {
 968                 skb2 = atm_alloc_charge(vcc, skb->len, GFP_ATOMIC);
 969                 if (skb2) {
 970                         memcpy(skb2->data, skb->data, skb->len);
 971                         skb_put(skb2, skb->len);
 972                         vcc->push(vcc, skb2);
 973                         atomic_inc(&vcc->stats->rx);
 974                 }
 975                 atomic_inc(&vcc->stats->tx);
 976                 solos_pop(vcc, skb);
 977                 return 0;
 978         }
 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         if (debug)
1039                 return 0;
1040
1041         card = kzalloc(sizeof(*card), GFP_KERNEL);
1042         if (!card)
1043                 return -ENOMEM;
1044
1045         card->dev = dev;
1046         init_waitqueue_head(&card->fw_wq);
1047         init_waitqueue_head(&card->param_wq);
1048
1049         err = pci_enable_device(dev);
1050         if (err) {
1051                 dev_warn(&dev->dev,  "Failed to enable PCI device\n");
1052                 goto out;
1053         }
1054
1055         err = pci_set_dma_mask(dev, DMA_32BIT_MASK);
1056         if (err) {
1057                 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1058                 goto out;
1059         }
1060
1061         err = pci_request_regions(dev, "solos");
1062         if (err) {
1063                 dev_warn(&dev->dev, "Failed to request regions\n");
1064                 goto out;
1065         }
1066
1067         card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1068         if (!card->config_regs) {
1069                 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1070                 goto out_release_regions;
1071         }
1072         card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1073         if (!card->buffers) {
1074                 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1075                 goto out_unmap_config;
1076         }
1077
1078 //      for(i=0;i<64 ;i+=4){
1079 //              data32=ioread32(card->buffers + i);
1080 //              dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32);
1081 //      }
1082
1083         //Fill Config Mem with zeros
1084         for(i = 0; i < 128; i += 4)
1085                 iowrite32(0, card->config_regs + i);
1086
1087         //Set RX empty flags
1088         iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1089
1090         data32 = ioread32(card->config_regs + FPGA_VER);
1091         fpga_ver = (data32 & 0x0000FFFF);
1092         major_ver = ((data32 & 0xFF000000) >> 24);
1093         minor_ver = ((data32 & 0x00FF0000) >> 16);
1094         dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1095                  major_ver, minor_ver, fpga_ver);
1096
1097         if (fpga_ver > 27)
1098                 card->using_dma = 1;
1099
1100         card->nr_ports = 2; /* FIXME: Detect daughterboard */
1101
1102         pci_set_drvdata(dev, card);
1103
1104         tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1105         spin_lock_init(&card->tx_lock);
1106         spin_lock_init(&card->tx_queue_lock);
1107         spin_lock_init(&card->cli_queue_lock);
1108         spin_lock_init(&card->param_queue_lock);
1109         INIT_LIST_HEAD(&card->param_queue);
1110
1111 /*
1112         // Set Loopback mode
1113         data32 = 0x00010000;
1114         iowrite32(data32,card->config_regs + FLAGS_ADDR);
1115 */
1116 /*
1117         // Fill Buffers with zeros
1118         for (i = 0; i < BUF_SIZE * 8; i += 4)
1119                 iowrite32(0, card->buffers + i);
1120 */
1121 /*
1122         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1123                 iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE));
1124         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1125                 iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE));
1126
1127         // Read Config Memory
1128         printk(KERN_DEBUG "Reading Config MEM\n");
1129         i = 0;
1130         for(i = 0; i < 16; i++) {
1131                 data32=ioread32(card->buffers + i*(BUF_SIZE/2));
1132                 printk(KERN_ALERT "Addr: %lX Data: %08lX\n",
1133                        (unsigned long)(addr_start + i*(BUF_SIZE/2)),
1134                        (unsigned long)data32);
1135         }
1136 */
1137         //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq);
1138         err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED,
1139                           "solos-pci", card);
1140         if (err) {
1141                 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1142                 goto out_unmap_both;
1143         }
1144
1145         // Enable IRQs
1146         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1147
1148         if (fpga_upgrade)
1149                 flash_upgrade(card, 0);
1150
1151         if (firmware_upgrade)
1152                 flash_upgrade(card, 1);
1153
1154         err = atm_init(card);
1155         if (err)
1156                 goto out_free_irq;
1157
1158         return 0;
1159
1160  out_free_irq:
1161         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1162         free_irq(dev->irq, card);
1163         tasklet_kill(&card->tlet);
1164
1165  out_unmap_both:
1166         pci_set_drvdata(dev, NULL);
1167         pci_iounmap(dev, card->config_regs);
1168  out_unmap_config:
1169         pci_iounmap(dev, card->buffers);
1170  out_release_regions:
1171         pci_release_regions(dev);
1172  out:
1173         return err;
1174 }
1175
1176 static int atm_init(struct solos_card *card)
1177 {
1178         int i;
1179
1180         for (i = 0; i < card->nr_ports; i++) {
1181                 struct sk_buff *skb;
1182                 struct pkt_hdr *header;
1183
1184                 skb_queue_head_init(&card->tx_queue[i]);
1185                 skb_queue_head_init(&card->cli_queue[i]);
1186
1187                 card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
1188                 if (!card->atmdev[i]) {
1189                         dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1190                         atm_remove(card);
1191                         return -ENODEV;
1192                 }
1193                 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1194                         dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1195                 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1196                         dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1197
1198                 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1199
1200                 card->atmdev[i]->ci_range.vpi_bits = 8;
1201                 card->atmdev[i]->ci_range.vci_bits = 16;
1202                 card->atmdev[i]->dev_data = card;
1203                 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1204                 card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN;
1205
1206                 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1207                 if (!skb) {
1208                         dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1209                         continue;
1210                 }
1211
1212                 header = (void *)skb_put(skb, sizeof(*header));
1213
1214                 header->size = cpu_to_le16(0);
1215                 header->vpi = cpu_to_le16(0);
1216                 header->vci = cpu_to_le16(0);
1217                 header->type = cpu_to_le16(PKT_STATUS);
1218
1219                 fpga_queue(card, i, skb, NULL);
1220         }
1221         return 0;
1222 }
1223
1224 static void atm_remove(struct solos_card *card)
1225 {
1226         int i;
1227
1228         for (i = 0; i < card->nr_ports; i++) {
1229                 if (card->atmdev[i]) {
1230                         dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1231
1232                         sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1233                         atm_dev_deregister(card->atmdev[i]);
1234                 }
1235         }
1236 }
1237
1238 static void fpga_remove(struct pci_dev *dev)
1239 {
1240         struct solos_card *card = pci_get_drvdata(dev);
1241
1242         if (debug)
1243                 return;
1244
1245         atm_remove(card);
1246
1247         dev_vdbg(&dev->dev, "Freeing IRQ\n");
1248         // Disable IRQs from FPGA
1249         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1250         free_irq(dev->irq, card);
1251         tasklet_kill(&card->tlet);
1252
1253         //      iowrite32(0x01,pciregs);
1254         dev_vdbg(&dev->dev, "Unmapping PCI resource\n");
1255         pci_iounmap(dev, card->buffers);
1256         pci_iounmap(dev, card->config_regs);
1257
1258         dev_vdbg(&dev->dev, "Releasing PCI Region\n");
1259         pci_release_regions(dev);
1260         pci_disable_device(dev);
1261
1262         pci_set_drvdata(dev, NULL);
1263         kfree(card);
1264 //      dev_dbg(&card->dev->dev, "fpga_remove\n");
1265         return;
1266 }
1267
1268 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1269         { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1270         { 0, }
1271 };
1272
1273 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1274
1275 static struct pci_driver fpga_driver = {
1276         .name =         "solos",
1277         .id_table =     fpga_pci_tbl,
1278         .probe =        fpga_probe,
1279         .remove =       fpga_remove,
1280 };
1281
1282
1283 static int __init solos_pci_init(void)
1284 {
1285         printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1286         return pci_register_driver(&fpga_driver);
1287 }
1288
1289 static void __exit solos_pci_exit(void)
1290 {
1291         pci_unregister_driver(&fpga_driver);
1292         printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1293 }
1294
1295 module_init(solos_pci_init);
1296 module_exit(solos_pci_exit);