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 debug = 0;
  74 static int atmdebug = 0;
  75 static int firmware_upgrade = 0;
  76 static int fpga_upgrade = 0;
  77
  78 struct pkt_hdr {
  79         __le16 size;
  80         __le16 vpi;
  81         __le16 vci;
  82         __le16 type;
  83 };
  84
  85 struct solos_skb_cb {
  86         struct atm_vcc *vcc;
  87         uint32_t dma_addr;
  88 };
  89
  90
  91 #define SKB_CB(skb)             ((struct solos_skb_cb *)skb->cb)
  92
  93 #define PKT_DATA        0
  94 #define PKT_COMMAND     1
  95 #define PKT_POPEN       3
  96 #define PKT_PCLOSE      4
  97 #define PKT_STATUS      5
  98
  99 struct solos_card {
 100         void __iomem *config_regs;
 101         void __iomem *buffers;
 102         int nr_ports;
 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(debug, "Enable Loopback");
 136 MODULE_PARM_DESC(atmdebug, "Print ATM data");
 137 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
 138 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
 139 module_param(debug, int, 0444);
 140 module_param(atmdebug, int, 0644);
 141 module_param(firmware_upgrade, int, 0444);
 142 module_param(fpga_upgrade, int, 0444);
 143
 144 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 145                        struct atm_vcc *vcc);
 146 static int fpga_tx(struct solos_card *);
 147 static irqreturn_t solos_irq(int irq, void *dev_id);
 148 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
 149 static int list_vccs(int vci);
 150 static void release_vccs(struct atm_dev *dev);
 151 static int atm_init(struct solos_card *);
 152 static void atm_remove(struct solos_card *);
 153 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
 154 static void solos_bh(unsigned long);
 155 static int print_buffer(struct sk_buff *buf);
 156
 157 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
 158 {
 159         if (vcc->pop)
 160                 vcc->pop(vcc, skb);
 161         else
 162                 dev_kfree_skb_any(skb);
 163 }
 164
 165 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
 166                                 char *buf)
 167 {
 168         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 169         struct solos_card *card = atmdev->dev_data;
 170         struct solos_param prm;
 171         struct sk_buff *skb;
 172         struct pkt_hdr *header;
 173         int buflen;
 174
 175         buflen = strlen(attr->attr.name) + 10;
 176
 177         skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
 178         if (!skb) {
 179                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
 180                 return -ENOMEM;
 181         }
 182
 183         header = (void *)skb_put(skb, sizeof(*header));
 184
 185         buflen = snprintf((void *)&header[1], buflen - 1,
 186                           "L%05d\n%s\n", current->pid, attr->attr.name);
 187         skb_put(skb, buflen);
 188
 189         header->size = cpu_to_le16(buflen);
 190         header->vpi = cpu_to_le16(0);
 191         header->vci = cpu_to_le16(0);
 192         header->type = cpu_to_le16(PKT_COMMAND);
 193
 194         prm.pid = current->pid;
 195         prm.response = NULL;
 196         prm.port = SOLOS_CHAN(atmdev);
 197
 198         spin_lock_irq(&card->param_queue_lock);
 199         list_add(&prm.list, &card->param_queue);
 200         spin_unlock_irq(&card->param_queue_lock);
 201
 202         fpga_queue(card, prm.port, skb, NULL);
 203
 204         wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
 205
 206         spin_lock_irq(&card->param_queue_lock);
 207         list_del(&prm.list);
 208         spin_unlock_irq(&card->param_queue_lock);
 209
 210         if (!prm.response)
 211                 return -EIO;
 212
 213         buflen = prm.response->len;
 214         memcpy(buf, prm.response->data, buflen);
 215         kfree_skb(prm.response);
 216
 217         return buflen;
 218 }
 219
 220 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
 221                                  const char *buf, size_t count)
 222 {
 223         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 224         struct solos_card *card = atmdev->dev_data;
 225         struct solos_param prm;
 226         struct sk_buff *skb;
 227         struct pkt_hdr *header;
 228         int buflen;
 229         ssize_t ret;
 230
 231         buflen = strlen(attr->attr.name) + 11 + count;
 232
 233         skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
 234         if (!skb) {
 235                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
 236                 return -ENOMEM;
 237         }
 238
 239         header = (void *)skb_put(skb, sizeof(*header));
 240
 241         buflen = snprintf((void *)&header[1], buflen - 1,
 242                           "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
 243
 244         skb_put(skb, buflen);
 245         header->size = cpu_to_le16(buflen);
 246         header->vpi = cpu_to_le16(0);
 247         header->vci = cpu_to_le16(0);
 248         header->type = cpu_to_le16(PKT_COMMAND);
 249
 250         prm.pid = current->pid;
 251         prm.response = NULL;
 252         prm.port = SOLOS_CHAN(atmdev);
 253
 254         spin_lock_irq(&card->param_queue_lock);
 255         list_add(&prm.list, &card->param_queue);
 256         spin_unlock_irq(&card->param_queue_lock);
 257
 258         fpga_queue(card, prm.port, skb, NULL);
 259
 260         wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
 261
 262         spin_lock_irq(&card->param_queue_lock);
 263         list_del(&prm.list);
 264         spin_unlock_irq(&card->param_queue_lock);
 265
 266         skb = prm.response;
 267
 268         if (!skb)
 269                 return -EIO;
 270
 271         buflen = skb->len;
 272
 273         /* Sometimes it has a newline, sometimes it doesn't. */
 274         if (skb->data[buflen - 1] == '\n')
 275                 buflen--;
 276
 277         if (buflen == 2 && !strncmp(skb->data, "OK", 2))
 278                 ret = count;
 279         else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
 280                 ret = -EIO;
 281         else {
 282                 /* We know we have enough space allocated for this; we allocated
 283                    it ourselves */
 284                 skb->data[buflen] = 0;
 285
 286                 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
 287                          skb->data);
 288                 ret = -EIO;
 289         }
 290         kfree_skb(skb);
 291
 292         return ret;
 293 }
 294
 295 static char *next_string(struct sk_buff *skb)
 296 {
 297         int i = 0;
 298         char *this = skb->data;
 299
 300         while (i < skb->len) {
 301                 if (this[i] == '\n') {
 302                         this[i] = 0;
 303                         skb_pull(skb, i);
 304                         return this;
 305                 }
 306         }
 307         return NULL;
 308 }
 309
 310 /*
 311  * Status packet has fields separated by \n, starting with a version number
 312  * for the information therein. Fields are....
 313  *
 314  *     packet version
 315  *     TxBitRate        (version >= 1)
 316  *     RxBitRate        (version >= 1)
 317  *     State            (version >= 1)
 318  */
 319 static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
 320 {
 321         char *str, *end, *state_str;
 322         int ver, rate_up, rate_down, state, snr, attn;
 323
 324         if (!card->atmdev[port])
 325                 return -ENODEV;
 326
 327         str = next_string(skb);
 328         if (!str)
 329                 return -EIO;
 330
 331         ver = simple_strtol(str, NULL, 10);
 332         if (ver < 1) {
 333                 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
 334                          ver);
 335                 return -EIO;
 336         }
 337
 338         str = next_string(skb);
 339         rate_up = simple_strtol(str, &end, 10);
 340         if (*end)
 341                 return -EIO;
 342
 343         str = next_string(skb);
 344         rate_down = simple_strtol(str, &end, 10);
 345         if (*end)
 346                 return -EIO;
 347
 348         state_str = next_string(skb);
 349         if (!strcmp(state_str, "Showtime"))
 350                 state = ATM_PHY_SIG_FOUND;
 351         else {
 352                 state = ATM_PHY_SIG_LOST;
 353                 release_vccs(card->atmdev[port]);
 354         }
 355
 356         str = next_string(skb);
 357         snr = simple_strtol(str, &end, 10);
 358         if (*end)
 359                 return -EIO;
 360
 361         str = next_string(skb);
 362         attn = simple_strtol(str, &end, 10);
 363         if (*end)
 364                 return -EIO;
 365
 366         if (state == ATM_PHY_SIG_LOST && !rate_up && !rate_down)
 367                 dev_info(&card->dev->dev, "Port %d ATM state: %s\n",
 368                          port, state_str);
 369         else
 370                 dev_info(&card->dev->dev, "Port %d ATM state: %s (%d/%d kb/s, SNR %ddB, Attn %ddB)\n",
 371                          port, state_str, rate_up/1000, rate_down/1000,
 372                          snr, attn);
 373
 374         card->atmdev[port]->link_rate = rate_down;
 375         card->atmdev[port]->signal = state;
 376
 377         return 0;
 378 }
 379
 380 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
 381 {
 382         struct solos_param *prm;
 383         unsigned long flags;
 384         int cmdpid;
 385         int found = 0;
 386
 387         if (skb->len < 7)
 388                 return 0;
 389
 390         if (skb->data[0] != 'L'    || !isdigit(skb->data[1]) ||
 391             !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
 392             !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
 393             skb->data[6] != '\n')
 394                 return 0;
 395
 396         cmdpid = simple_strtol(&skb->data[1], NULL, 10);
 397
 398         spin_lock_irqsave(&card->param_queue_lock, flags);
 399         list_for_each_entry(prm, &card->param_queue, list) {
 400                 if (prm->port == port && prm->pid == cmdpid) {
 401                         prm->response = skb;
 402                         skb_pull(skb, 7);
 403                         wake_up(&card->param_wq);
 404                         found = 1;
 405                         break;
 406                 }
 407         }
 408         spin_unlock_irqrestore(&card->param_queue_lock, flags);
 409         return found;
 410 }
 411
 412 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
 413                             char *buf)
 414 {
 415         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 416         struct solos_card *card = atmdev->dev_data;
 417         struct sk_buff *skb;
 418
 419         spin_lock(&card->cli_queue_lock);
 420         skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
 421         spin_unlock(&card->cli_queue_lock);
 422         if(skb == NULL)
 423                 return sprintf(buf, "No data.\n");
 424
 425         memcpy(buf, skb->data, skb->len);
 426         dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
 427
 428         kfree_skb(skb);
 429         return skb->len;
 430 }
 431
 432 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
 433 {
 434         struct sk_buff *skb;
 435         struct pkt_hdr *header;
 436
 437 //      dev_dbg(&card->dev->dev, "size: %d\n", size);
 438
 439         if (size > (BUF_SIZE - sizeof(*header))) {
 440                 dev_dbg(&card->dev->dev, "Command is too big.  Dropping request\n");
 441                 return 0;
 442         }
 443         skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
 444         if (!skb) {
 445                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
 446                 return 0;
 447         }
 448
 449         header = (void *)skb_put(skb, sizeof(*header));
 450
 451         header->size = cpu_to_le16(size);
 452         header->vpi = cpu_to_le16(0);
 453         header->vci = cpu_to_le16(0);
 454         header->type = cpu_to_le16(PKT_COMMAND);
 455
 456         memcpy(skb_put(skb, size), buf, size);
 457
 458         fpga_queue(card, dev, skb, NULL);
 459
 460         return 0;
 461 }
 462
 463 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
 464                              const char *buf, size_t count)
 465 {
 466         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 467         struct solos_card *card = atmdev->dev_data;
 468         int err;
 469
 470         err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
 471
 472         return err?:count;
 473 }
 474
 475 static DEVICE_ATTR(console, 0644, console_show, console_store);
 476
 477
 478 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
 479 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
 480
 481 #include "solos-attrlist.c"
 482
 483 #undef SOLOS_ATTR_RO
 484 #undef SOLOS_ATTR_RW
 485
 486 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
 487 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
 488
 489 static struct attribute *solos_attrs[] = {
 490 #include "solos-attrlist.c"
 491         NULL
 492 };
 493
 494 static struct attribute_group solos_attr_group = {
 495         .attrs = solos_attrs,
 496         .name = "parameters",
 497 };
 498
 499 static int flash_upgrade(struct solos_card *card, int chip)
 500 {
 501         const struct firmware *fw;
 502         const char *fw_name;
 503         uint32_t data32 = 0;
 504         int blocksize = 0;
 505         int numblocks = 0;
 506         int offset;
 507
 508         if (chip == 0) {
 509                 fw_name = "solos-FPGA.bin";
 510                 blocksize = FPGA_BLOCK;
 511         } else {
 512                 fw_name = "solos-Firmware.bin";
 513                 blocksize = SOLOS_BLOCK;
 514         }
 515
 516         if (request_firmware(&fw, fw_name, &card->dev->dev))
 517                 return -ENOENT;
 518
 519         dev_info(&card->dev->dev, "Flash upgrade starting\n");
 520
 521         numblocks = fw->size / blocksize;
 522         dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
 523         dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
 524
 525         dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
 526         iowrite32(1, card->config_regs + FPGA_MODE);
 527         data32 = ioread32(card->config_regs + FPGA_MODE);
 528
 529         /* Set mode to Chip Erase */
 530         dev_info(&card->dev->dev, "Set FPGA Flash mode to %s Chip Erase\n",
 531                  chip?"Solos":"FPGA");
 532         iowrite32((chip * 2), card->config_regs + FLASH_MODE);
 533
 534
 535         iowrite32(1, card->config_regs + WRITE_FLASH);
 536         wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
 537
 538         for (offset = 0; offset < fw->size; offset += blocksize) {
 539                 int i;
 540
 541                 /* Clear write flag */
 542                 iowrite32(0, card->config_regs + WRITE_FLASH);
 543
 544                 /* Set mode to Block Write */
 545                 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
 546                 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
 547
 548                 /* Copy block to buffer, swapping each 16 bits */
 549                 for(i = 0; i < blocksize; i += 4) {
 550                         uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
 551                         iowrite32(word, RX_BUF(card, 3) + i);
 552                 }
 553
 554                 /* Specify block number and then trigger flash write */
 555                 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
 556                 iowrite32(1, card->config_regs + WRITE_FLASH);
 557                 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
 558         }
 559
 560         release_firmware(fw);
 561         iowrite32(0, card->config_regs + WRITE_FLASH);
 562         iowrite32(0, card->config_regs + FPGA_MODE);
 563         iowrite32(0, card->config_regs + FLASH_MODE);
 564         dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
 565         return 0;
 566 }
 567
 568 static irqreturn_t solos_irq(int irq, void *dev_id)
 569 {
 570         struct solos_card *card = dev_id;
 571         int handled = 1;
 572
 573         //ACK IRQ
 574         iowrite32(0, card->config_regs + IRQ_CLEAR);
 575         //Disable IRQs from FPGA
 576         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
 577
 578         if (card->atmdev[0])
 579                 tasklet_schedule(&card->tlet);
 580         else
 581                 wake_up(&card->fw_wq);
 582
 583         //Enable IRQs from FPGA
 584         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
 585         return IRQ_RETVAL(handled);
 586 }
 587
 588 void solos_bh(unsigned long card_arg)
 589 {
 590         struct solos_card *card = (void *)card_arg;
 591         int port;
 592         uint32_t card_flags;
 593         uint32_t tx_mask;
 594         uint32_t rx_done = 0;
 595
 596         card_flags = ioread32(card->config_regs + FLAGS_ADDR);
 597
 598         /* The TX bits are set if the channel is busy; clear if not. We want to
 599            invoke fpga_tx() unless _all_ the bits for active channels are set */
 600         tx_mask = (1 << card->nr_ports) - 1;
 601         if ((card_flags & tx_mask) != tx_mask)
 602                 fpga_tx(card);
 603
 604         for (port = 0; port < card->nr_ports; port++) {
 605                 if (card_flags & (0x10 << port)) {
 606                         struct pkt_hdr _hdr, *header;
 607                         struct sk_buff *skb;
 608                         struct atm_vcc *vcc;
 609                         int size;
 610
 611                         if (card->using_dma) {
 612                                 skb = card->rx_skb[port];
 613                                 card->rx_skb[port] = NULL;
 614
 615                                 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
 616                                                  RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
 617
 618                                 header = (void *)skb->data;
 619                                 size = le16_to_cpu(header->size);
 620                                 skb_put(skb, size + sizeof(*header));
 621                                 skb_pull(skb, sizeof(*header));
 622                         } else {
 623                                 header = &_hdr;
 624
 625                                 rx_done |= 0x10 << port;
 626
 627                                 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
 628
 629                                 size = le16_to_cpu(header->size);
 630
 631                                 skb = alloc_skb(size + 1, GFP_ATOMIC);
 632                                 if (!skb) {
 633                                         if (net_ratelimit())
 634                                                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
 635                                         continue;
 636                                 }
 637
 638                                 memcpy_fromio(skb_put(skb, size),
 639                                               RX_BUF(card, port) + sizeof(*header),
 640                                               size);
 641                         }
 642                         if (atmdebug) {
 643                                 dev_info(&card->dev->dev, "Received: device %d\n", port);
 644                                 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
 645                                          size, le16_to_cpu(header->vpi),
 646                                          le16_to_cpu(header->vci));
 647                                 print_buffer(skb);
 648                         }
 649
 650                         switch (le16_to_cpu(header->type)) {
 651                         case PKT_DATA:
 652                                 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
 653                                                le16_to_cpu(header->vci));
 654                                 if (!vcc) {
 655                                         if (net_ratelimit())
 656                                                 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
 657                                                          le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
 658                                                          port);
 659                                         continue;
 660                                 }
 661                                 atm_charge(vcc, skb->truesize);
 662                                 vcc->push(vcc, skb);
 663                                 atomic_inc(&vcc->stats->rx);
 664                                 break;
 665
 666                         case PKT_STATUS:
 667                                 process_status(card, port, skb);
 668                                 dev_kfree_skb_any(skb);
 669                                 break;
 670
 671                         case PKT_COMMAND:
 672                         default: /* FIXME: Not really, surely? */
 673                                 if (process_command(card, port, skb))
 674                                         break;
 675                                 spin_lock(&card->cli_queue_lock);
 676                                 if (skb_queue_len(&card->cli_queue[port]) > 10) {
 677                                         if (net_ratelimit())
 678                                                 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
 679                                                          port);
 680                                         dev_kfree_skb_any(skb);
 681                                 } else
 682                                         skb_queue_tail(&card->cli_queue[port], skb);
 683                                 spin_unlock(&card->cli_queue_lock);
 684                                 break;
 685                         }
 686                 }
 687                 /* Allocate RX skbs for any ports which need them */
 688                 if (card->using_dma && card->atmdev[port] &&
 689                     !card->rx_skb[port]) {
 690                         struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
 691                         if (skb) {
 692                                 SKB_CB(skb)->dma_addr =
 693                                         pci_map_single(card->dev, skb->data,
 694                                                        RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
 695                                 iowrite32(SKB_CB(skb)->dma_addr,
 696                                           card->config_regs + RX_DMA_ADDR(port));
 697                                 card->rx_skb[port] = skb;
 698                         } else {
 699                                 if (net_ratelimit())
 700                                         dev_warn(&card->dev->dev, "Failed to allocate RX skb");
 701
 702                                 /* We'll have to try again later */
 703                                 tasklet_schedule(&card->tlet);
 704                         }
 705                 }
 706         }
 707         if (rx_done)
 708                 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
 709
 710         return;
 711 }
 712
 713 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
 714 {
 715         struct hlist_head *head;
 716         struct atm_vcc *vcc = NULL;
 717         struct hlist_node *node;
 718         struct sock *s;
 719
 720         read_lock(&vcc_sklist_lock);
 721         head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 722         sk_for_each(s, node, head) {
 723                 vcc = atm_sk(s);
 724                 if (vcc->dev == dev && vcc->vci == vci &&
 725                     vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
 726                         goto out;
 727         }
 728         vcc = NULL;
 729  out:
 730         read_unlock(&vcc_sklist_lock);
 731         return vcc;
 732 }
 733
 734 static int list_vccs(int vci)
 735 {
 736         struct hlist_head *head;
 737         struct atm_vcc *vcc;
 738         struct hlist_node *node;
 739         struct sock *s;
 740         int num_found = 0;
 741         int i;
 742
 743         read_lock(&vcc_sklist_lock);
 744         if (vci != 0){
 745                 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 746                 sk_for_each(s, node, head) {
 747                         num_found ++;
 748                         vcc = atm_sk(s);
 749                         printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 750                                vcc->dev->number,
 751                                vcc->vpi,
 752                                vcc->vci);
 753                 }
 754         } else {
 755                 for(i = 0; i < VCC_HTABLE_SIZE; i++){
 756                         head = &vcc_hash[i];
 757                         sk_for_each(s, node, head) {
 758                                 num_found ++;
 759                                 vcc = atm_sk(s);
 760                                 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 761                                        vcc->dev->number,
 762                                        vcc->vpi,
 763                                        vcc->vci);
 764                         }
 765                 }
 766         }
 767         read_unlock(&vcc_sklist_lock);
 768         return num_found;
 769 }
 770
 771 static void release_vccs(struct atm_dev *dev)
 772 {
 773         int i;
 774
 775         write_lock_irq(&vcc_sklist_lock);
 776         for (i = 0; i < VCC_HTABLE_SIZE; i++) {
 777                 struct hlist_head *head = &vcc_hash[i];
 778                 struct hlist_node *node, *tmp;
 779                 struct sock *s;
 780                 struct atm_vcc *vcc;
 781
 782                 sk_for_each_safe(s, node, tmp, head) {
 783                         vcc = atm_sk(s);
 784                         if (vcc->dev == dev) {
 785                                 vcc_release_async(vcc, -EPIPE);
 786                                 sk_del_node_init(s);
 787                         }
 788                 }
 789         }
 790         write_unlock_irq(&vcc_sklist_lock);
 791 }
 792
 793
 794 static int popen(struct atm_vcc *vcc)
 795 {
 796         struct solos_card *card = vcc->dev->dev_data;
 797         struct sk_buff *skb;
 798         struct pkt_hdr *header;
 799
 800         if (vcc->qos.aal != ATM_AAL5) {
 801                 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
 802                          vcc->qos.aal);
 803                 return -EINVAL;
 804         }
 805
 806         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 807         if (!skb && net_ratelimit()) {
 808                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
 809                 return -ENOMEM;
 810         }
 811         header = (void *)skb_put(skb, sizeof(*header));
 812
 813         header->size = cpu_to_le16(0);
 814         header->vpi = cpu_to_le16(vcc->vpi);
 815         header->vci = cpu_to_le16(vcc->vci);
 816         header->type = cpu_to_le16(PKT_POPEN);
 817
 818         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 819
 820 //      dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 821         set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci
 822         set_bit(ATM_VF_READY, &vcc->flags);
 823         list_vccs(0);
 824
 825
 826         return 0;
 827 }
 828
 829 static void pclose(struct atm_vcc *vcc)
 830 {
 831         struct solos_card *card = vcc->dev->dev_data;
 832         struct sk_buff *skb;
 833         struct pkt_hdr *header;
 834
 835         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 836         if (!skb) {
 837                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
 838                 return;
 839         }
 840         header = (void *)skb_put(skb, sizeof(*header));
 841
 842         header->size = cpu_to_le16(0);
 843         header->vpi = cpu_to_le16(vcc->vpi);
 844         header->vci = cpu_to_le16(vcc->vci);
 845         header->type = cpu_to_le16(PKT_PCLOSE);
 846
 847         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 848
 849 //      dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 850
 851         clear_bit(ATM_VF_ADDR, &vcc->flags);
 852         clear_bit(ATM_VF_READY, &vcc->flags);
 853
 854         return;
 855 }
 856
 857 static int print_buffer(struct sk_buff *buf)
 858 {
 859         int len,i;
 860         char msg[500];
 861         char item[10];
 862
 863         len = buf->len;
 864         for (i = 0; i < len; i++){
 865                 if(i % 8 == 0)
 866                         sprintf(msg, "%02X: ", i);
 867
 868                 sprintf(item,"%02X ",*(buf->data + i));
 869                 strcat(msg, item);
 870                 if(i % 8 == 7) {
 871                         sprintf(item, "\n");
 872                         strcat(msg, item);
 873                         printk(KERN_DEBUG "%s", msg);
 874                 }
 875         }
 876         if (i % 8 != 0) {
 877                 sprintf(item, "\n");
 878                 strcat(msg, item);
 879                 printk(KERN_DEBUG "%s", msg);
 880         }
 881         printk(KERN_DEBUG "\n");
 882
 883         return 0;
 884 }
 885
 886 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 887                        struct atm_vcc *vcc)
 888 {
 889         int old_len;
 890
 891         SKB_CB(skb)->vcc = vcc;
 892
 893         spin_lock(&card->tx_queue_lock);
 894         old_len = skb_queue_len(&card->tx_queue[port]);
 895         skb_queue_tail(&card->tx_queue[port], skb);
 896         spin_unlock(&card->tx_queue_lock);
 897
 898         /* If TX might need to be started, do so */
 899         if (!old_len)
 900                 fpga_tx(card);
 901 }
 902
 903 static int fpga_tx(struct solos_card *card)
 904 {
 905         uint32_t tx_pending;
 906         uint32_t tx_started = 0;
 907         struct sk_buff *skb;
 908         struct atm_vcc *vcc;
 909         unsigned char port;
 910         unsigned long flags;
 911
 912         spin_lock_irqsave(&card->tx_lock, flags);
 913
 914         tx_pending = ioread32(card->config_regs + FLAGS_ADDR);
 915
 916         dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending);
 917
 918         for (port = 0; port < card->nr_ports; port++) {
 919                 if (card->atmdev[port] && !(tx_pending & (1 << port))) {
 920                         struct sk_buff *oldskb = card->tx_skb[port];
 921
 922                         if (oldskb)
 923                                 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
 924                                                  oldskb->len, PCI_DMA_TODEVICE);
 925
 926                         spin_lock(&card->tx_queue_lock);
 927                         skb = skb_dequeue(&card->tx_queue[port]);
 928                         spin_unlock(&card->tx_queue_lock);
 929
 930                         if (skb && !card->using_dma) {
 931                                 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
 932                                 tx_started |= 1 << port; //Set TX full flag
 933                                 oldskb = skb; /* We're done with this skb already */
 934                         } else if (skb && card->using_dma) {
 935                                 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
 936                                                                        skb->len, PCI_DMA_TODEVICE);
 937                                 iowrite32(SKB_CB(skb)->dma_addr,
 938                                           card->config_regs + TX_DMA_ADDR(port));
 939                         }
 940
 941                         if (!oldskb)
 942                                 continue;
 943
 944                         /* Clean up and free oldskb now it's gone */
 945                         if (atmdebug) {
 946                                 dev_info(&card->dev->dev, "Transmitted: port %d\n",
 947                                          port);
 948                                 print_buffer(oldskb);
 949                         }
 950
 951                         vcc = SKB_CB(oldskb)->vcc;
 952
 953                         if (vcc) {
 954                                 atomic_inc(&vcc->stats->tx);
 955                                 solos_pop(vcc, oldskb);
 956                         } else
 957                                 dev_kfree_skb_irq(oldskb);
 958
 959                 }
 960         }
 961         if (tx_started)
 962                 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
 963
 964         spin_unlock_irqrestore(&card->tx_lock, flags);
 965         return 0;
 966 }
 967
 968 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
 969 {
 970         struct solos_card *card = vcc->dev->dev_data;
 971         struct sk_buff *skb2 = NULL;
 972         struct pkt_hdr *header;
 973         int pktlen;
 974
 975         //dev_dbg(&card->dev->dev, "psend called.\n");
 976         //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci);
 977
 978         if (debug) {
 979                 skb2 = atm_alloc_charge(vcc, skb->len, GFP_ATOMIC);
 980                 if (skb2) {
 981                         memcpy(skb2->data, skb->data, skb->len);
 982                         skb_put(skb2, skb->len);
 983                         vcc->push(vcc, skb2);
 984                         atomic_inc(&vcc->stats->rx);
 985                 }
 986                 atomic_inc(&vcc->stats->tx);
 987                 solos_pop(vcc, skb);
 988                 return 0;
 989         }
 990
 991         pktlen = skb->len;
 992         if (pktlen > (BUF_SIZE - sizeof(*header))) {
 993                 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
 994                 solos_pop(vcc, skb);
 995                 return 0;
 996         }
 997
 998         if (!skb_clone_writable(skb, sizeof(*header))) {
 999                 int expand_by = 0;
1000                 int ret;
1001
1002                 if (skb_headroom(skb) < sizeof(*header))
1003                         expand_by = sizeof(*header) - skb_headroom(skb);
1004
1005                 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
1006                 if (ret) {
1007                         dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
1008                         solos_pop(vcc, skb);
1009                         return ret;
1010                 }
1011         }
1012
1013         header = (void *)skb_push(skb, sizeof(*header));
1014
1015         /* This does _not_ include the size of the header */
1016         header->size = cpu_to_le16(pktlen);
1017         header->vpi = cpu_to_le16(vcc->vpi);
1018         header->vci = cpu_to_le16(vcc->vci);
1019         header->type = cpu_to_le16(PKT_DATA);
1020
1021         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1022
1023         return 0;
1024 }
1025
1026 static struct atmdev_ops fpga_ops = {
1027         .open =         popen,
1028         .close =        pclose,
1029         .ioctl =        NULL,
1030         .getsockopt =   NULL,
1031         .setsockopt =   NULL,
1032         .send =         psend,
1033         .send_oam =     NULL,
1034         .phy_put =      NULL,
1035         .phy_get =      NULL,
1036         .change_qos =   NULL,
1037         .proc_read =    NULL,
1038         .owner =        THIS_MODULE
1039 };
1040
1041 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1042 {
1043         int err, i;
1044         uint16_t fpga_ver;
1045         uint8_t major_ver, minor_ver;
1046         uint32_t data32;
1047         struct solos_card *card;
1048
1049         if (debug)
1050                 return 0;
1051
1052         card = kzalloc(sizeof(*card), GFP_KERNEL);
1053         if (!card)
1054                 return -ENOMEM;
1055
1056         card->dev = dev;
1057         init_waitqueue_head(&card->fw_wq);
1058         init_waitqueue_head(&card->param_wq);
1059
1060         err = pci_enable_device(dev);
1061         if (err) {
1062                 dev_warn(&dev->dev,  "Failed to enable PCI device\n");
1063                 goto out;
1064         }
1065
1066         err = pci_set_dma_mask(dev, DMA_32BIT_MASK);
1067         if (err) {
1068                 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1069                 goto out;
1070         }
1071
1072         err = pci_request_regions(dev, "solos");
1073         if (err) {
1074                 dev_warn(&dev->dev, "Failed to request regions\n");
1075                 goto out;
1076         }
1077
1078         card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1079         if (!card->config_regs) {
1080                 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1081                 goto out_release_regions;
1082         }
1083         card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1084         if (!card->buffers) {
1085                 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1086                 goto out_unmap_config;
1087         }
1088
1089 //      for(i=0;i<64 ;i+=4){
1090 //              data32=ioread32(card->buffers + i);
1091 //              dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32);
1092 //      }
1093
1094         //Fill Config Mem with zeros
1095         for(i = 0; i < 128; i += 4)
1096                 iowrite32(0, card->config_regs + i);
1097
1098         //Set RX empty flags
1099         iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1100
1101         data32 = ioread32(card->config_regs + FPGA_VER);
1102         fpga_ver = (data32 & 0x0000FFFF);
1103         major_ver = ((data32 & 0xFF000000) >> 24);
1104         minor_ver = ((data32 & 0x00FF0000) >> 16);
1105         dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1106                  major_ver, minor_ver, fpga_ver);
1107
1108         if (fpga_ver > 27)
1109                 card->using_dma = 1;
1110
1111         card->nr_ports = 2; /* FIXME: Detect daughterboard */
1112
1113         pci_set_drvdata(dev, card);
1114
1115         tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1116         spin_lock_init(&card->tx_lock);
1117         spin_lock_init(&card->tx_queue_lock);
1118         spin_lock_init(&card->cli_queue_lock);
1119         spin_lock_init(&card->param_queue_lock);
1120         INIT_LIST_HEAD(&card->param_queue);
1121
1122 /*
1123         // Set Loopback mode
1124         data32 = 0x00010000;
1125         iowrite32(data32,card->config_regs + FLAGS_ADDR);
1126 */
1127 /*
1128         // Fill Buffers with zeros
1129         for (i = 0; i < BUF_SIZE * 8; i += 4)
1130                 iowrite32(0, card->buffers + i);
1131 */
1132 /*
1133         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1134                 iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE));
1135         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1136                 iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE));
1137
1138         // Read Config Memory
1139         printk(KERN_DEBUG "Reading Config MEM\n");
1140         i = 0;
1141         for(i = 0; i < 16; i++) {
1142                 data32=ioread32(card->buffers + i*(BUF_SIZE/2));
1143                 printk(KERN_ALERT "Addr: %lX Data: %08lX\n",
1144                        (unsigned long)(addr_start + i*(BUF_SIZE/2)),
1145                        (unsigned long)data32);
1146         }
1147 */
1148         //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq);
1149         err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED,
1150                           "solos-pci", card);
1151         if (err) {
1152                 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1153                 goto out_unmap_both;
1154         }
1155
1156         // Enable IRQs
1157         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1158
1159         if (fpga_upgrade)
1160                 flash_upgrade(card, 0);
1161
1162         if (firmware_upgrade)
1163                 flash_upgrade(card, 1);
1164
1165         err = atm_init(card);
1166         if (err)
1167                 goto out_free_irq;
1168
1169         return 0;
1170
1171  out_free_irq:
1172         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1173         free_irq(dev->irq, card);
1174         tasklet_kill(&card->tlet);
1175
1176  out_unmap_both:
1177         pci_set_drvdata(dev, NULL);
1178         pci_iounmap(dev, card->config_regs);
1179  out_unmap_config:
1180         pci_iounmap(dev, card->buffers);
1181  out_release_regions:
1182         pci_release_regions(dev);
1183  out:
1184         return err;
1185 }
1186
1187 static int atm_init(struct solos_card *card)
1188 {
1189         int i;
1190
1191         for (i = 0; i < card->nr_ports; i++) {
1192                 struct sk_buff *skb;
1193                 struct pkt_hdr *header;
1194
1195                 skb_queue_head_init(&card->tx_queue[i]);
1196                 skb_queue_head_init(&card->cli_queue[i]);
1197
1198                 card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
1199                 if (!card->atmdev[i]) {
1200                         dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1201                         atm_remove(card);
1202                         return -ENODEV;
1203                 }
1204                 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1205                         dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1206                 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1207                         dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1208
1209                 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1210
1211                 card->atmdev[i]->ci_range.vpi_bits = 8;
1212                 card->atmdev[i]->ci_range.vci_bits = 16;
1213                 card->atmdev[i]->dev_data = card;
1214                 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1215                 card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN;
1216
1217                 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1218                 if (!skb) {
1219                         dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1220                         continue;
1221                 }
1222
1223                 header = (void *)skb_put(skb, sizeof(*header));
1224
1225                 header->size = cpu_to_le16(0);
1226                 header->vpi = cpu_to_le16(0);
1227                 header->vci = cpu_to_le16(0);
1228                 header->type = cpu_to_le16(PKT_STATUS);
1229
1230                 fpga_queue(card, i, skb, NULL);
1231         }
1232         return 0;
1233 }
1234
1235 static void atm_remove(struct solos_card *card)
1236 {
1237         int i;
1238
1239         for (i = 0; i < card->nr_ports; i++) {
1240                 if (card->atmdev[i]) {
1241                         dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1242
1243                         sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1244                         atm_dev_deregister(card->atmdev[i]);
1245                 }
1246         }
1247 }
1248
1249 static void fpga_remove(struct pci_dev *dev)
1250 {
1251         struct solos_card *card = pci_get_drvdata(dev);
1252
1253         if (debug)
1254                 return;
1255
1256         atm_remove(card);
1257
1258         dev_vdbg(&dev->dev, "Freeing IRQ\n");
1259         // Disable IRQs from FPGA
1260         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1261         free_irq(dev->irq, card);
1262         tasklet_kill(&card->tlet);
1263
1264         //      iowrite32(0x01,pciregs);
1265         dev_vdbg(&dev->dev, "Unmapping PCI resource\n");
1266         pci_iounmap(dev, card->buffers);
1267         pci_iounmap(dev, card->config_regs);
1268
1269         dev_vdbg(&dev->dev, "Releasing PCI Region\n");
1270         pci_release_regions(dev);
1271         pci_disable_device(dev);
1272
1273         pci_set_drvdata(dev, NULL);
1274         kfree(card);
1275 //      dev_dbg(&card->dev->dev, "fpga_remove\n");
1276         return;
1277 }
1278
1279 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1280         { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1281         { 0, }
1282 };
1283
1284 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1285
1286 static struct pci_driver fpga_driver = {
1287         .name =         "solos",
1288         .id_table =     fpga_pci_tbl,
1289         .probe =        fpga_probe,
1290         .remove =       fpga_remove,
1291 };
1292
1293
1294 static int __init solos_pci_init(void)
1295 {
1296         printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1297         return pci_register_driver(&fpga_driver);
1298 }
1299
1300 static void __exit solos_pci_exit(void)
1301 {
1302         pci_unregister_driver(&fpga_driver);
1303         printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1304 }
1305
1306 module_init(solos_pci_init);
1307 module_exit(solos_pci_exit);