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         int tx_mask;
 104         struct pci_dev *dev;
 105         struct atm_dev *atmdev[4];
 106         struct tasklet_struct tlet;
 107         spinlock_t tx_lock;
 108         spinlock_t tx_queue_lock;
 109         spinlock_t cli_queue_lock;
 110         spinlock_t param_queue_lock;
 111         struct list_head param_queue;
 112         struct sk_buff_head tx_queue[4];
 113         struct sk_buff_head cli_queue[4];
 114         struct sk_buff *tx_skb[4];
 115         struct sk_buff *rx_skb[4];
 116         wait_queue_head_t param_wq;
 117         wait_queue_head_t fw_wq;
 118         int using_dma;
 119 };
 120
 121
 122 struct solos_param {
 123         struct list_head list;
 124         pid_t pid;
 125         int port;
 126         struct sk_buff *response;
 127         wait_queue_head_t wq;
 128 };
 129
 130 #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
 131
 132 MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
 133 MODULE_DESCRIPTION("Solos PCI driver");
 134 MODULE_VERSION(VERSION);
 135 MODULE_LICENSE("GPL");
 136 MODULE_PARM_DESC(debug, "Enable Loopback");
 137 MODULE_PARM_DESC(atmdebug, "Print ATM data");
 138 MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
 139 MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
 140 module_param(debug, int, 0444);
 141 module_param(atmdebug, int, 0644);
 142 module_param(firmware_upgrade, int, 0444);
 143 module_param(fpga_upgrade, int, 0444);
 144
 145 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 146                        struct atm_vcc *vcc);
 147 static int fpga_tx(struct solos_card *);
 148 static irqreturn_t solos_irq(int irq, void *dev_id);
 149 static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
 150 static int list_vccs(int vci);
 151 static void release_vccs(struct atm_dev *dev);
 152 static int atm_init(struct solos_card *);
 153 static void atm_remove(struct solos_card *);
 154 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
 155 static void solos_bh(unsigned long);
 156 static int print_buffer(struct sk_buff *buf);
 157
 158 static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
 159 {
 160         if (vcc->pop)
 161                 vcc->pop(vcc, skb);
 162         else
 163                 dev_kfree_skb_any(skb);
 164 }
 165
 166 static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
 167                                 char *buf)
 168 {
 169         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 170         struct solos_card *card = atmdev->dev_data;
 171         struct solos_param prm;
 172         struct sk_buff *skb;
 173         struct pkt_hdr *header;
 174         int buflen;
 175
 176         buflen = strlen(attr->attr.name) + 10;
 177
 178         skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
 179         if (!skb) {
 180                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
 181                 return -ENOMEM;
 182         }
 183
 184         header = (void *)skb_put(skb, sizeof(*header));
 185
 186         buflen = snprintf((void *)&header[1], buflen - 1,
 187                           "L%05d\n%s\n", current->pid, attr->attr.name);
 188         skb_put(skb, buflen);
 189
 190         header->size = cpu_to_le16(buflen);
 191         header->vpi = cpu_to_le16(0);
 192         header->vci = cpu_to_le16(0);
 193         header->type = cpu_to_le16(PKT_COMMAND);
 194
 195         prm.pid = current->pid;
 196         prm.response = NULL;
 197         prm.port = SOLOS_CHAN(atmdev);
 198
 199         spin_lock_irq(&card->param_queue_lock);
 200         list_add(&prm.list, &card->param_queue);
 201         spin_unlock_irq(&card->param_queue_lock);
 202
 203         fpga_queue(card, prm.port, skb, NULL);
 204
 205         wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
 206
 207         spin_lock_irq(&card->param_queue_lock);
 208         list_del(&prm.list);
 209         spin_unlock_irq(&card->param_queue_lock);
 210
 211         if (!prm.response)
 212                 return -EIO;
 213
 214         buflen = prm.response->len;
 215         memcpy(buf, prm.response->data, buflen);
 216         kfree_skb(prm.response);
 217
 218         return buflen;
 219 }
 220
 221 static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
 222                                  const char *buf, size_t count)
 223 {
 224         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 225         struct solos_card *card = atmdev->dev_data;
 226         struct solos_param prm;
 227         struct sk_buff *skb;
 228         struct pkt_hdr *header;
 229         int buflen;
 230         ssize_t ret;
 231
 232         buflen = strlen(attr->attr.name) + 11 + count;
 233
 234         skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
 235         if (!skb) {
 236                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
 237                 return -ENOMEM;
 238         }
 239
 240         header = (void *)skb_put(skb, sizeof(*header));
 241
 242         buflen = snprintf((void *)&header[1], buflen - 1,
 243                           "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
 244
 245         skb_put(skb, buflen);
 246         header->size = cpu_to_le16(buflen);
 247         header->vpi = cpu_to_le16(0);
 248         header->vci = cpu_to_le16(0);
 249         header->type = cpu_to_le16(PKT_COMMAND);
 250
 251         prm.pid = current->pid;
 252         prm.response = NULL;
 253         prm.port = SOLOS_CHAN(atmdev);
 254
 255         spin_lock_irq(&card->param_queue_lock);
 256         list_add(&prm.list, &card->param_queue);
 257         spin_unlock_irq(&card->param_queue_lock);
 258
 259         fpga_queue(card, prm.port, skb, NULL);
 260
 261         wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
 262
 263         spin_lock_irq(&card->param_queue_lock);
 264         list_del(&prm.list);
 265         spin_unlock_irq(&card->param_queue_lock);
 266
 267         skb = prm.response;
 268
 269         if (!skb)
 270                 return -EIO;
 271
 272         buflen = skb->len;
 273
 274         /* Sometimes it has a newline, sometimes it doesn't. */
 275         if (skb->data[buflen - 1] == '\n')
 276                 buflen--;
 277
 278         if (buflen == 2 && !strncmp(skb->data, "OK", 2))
 279                 ret = count;
 280         else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
 281                 ret = -EIO;
 282         else {
 283                 /* We know we have enough space allocated for this; we allocated
 284                    it ourselves */
 285                 skb->data[buflen] = 0;
 286
 287                 dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
 288                          skb->data);
 289                 ret = -EIO;
 290         }
 291         kfree_skb(skb);
 292
 293         return ret;
 294 }
 295
 296 static char *next_string(struct sk_buff *skb)
 297 {
 298         int i = 0;
 299         char *this = skb->data;
 300
 301         while (i < skb->len) {
 302                 if (this[i] == '\n') {
 303                         this[i] = 0;
 304                         skb_pull(skb, i);
 305                         return this;
 306                 }
 307         }
 308         return NULL;
 309 }
 310
 311 /*
 312  * Status packet has fields separated by \n, starting with a version number
 313  * for the information therein. Fields are....
 314  *
 315  *     packet version
 316  *     TxBitRate        (version >= 1)
 317  *     RxBitRate        (version >= 1)
 318  *     State            (version >= 1)
 319  */
 320 static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
 321 {
 322         char *str, *end, *state_str;
 323         int ver, rate_up, rate_down, state, snr, attn;
 324
 325         if (!card->atmdev[port])
 326                 return -ENODEV;
 327
 328         str = next_string(skb);
 329         if (!str)
 330                 return -EIO;
 331
 332         ver = simple_strtol(str, NULL, 10);
 333         if (ver < 1) {
 334                 dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
 335                          ver);
 336                 return -EIO;
 337         }
 338
 339         str = next_string(skb);
 340         rate_up = simple_strtol(str, &end, 10);
 341         if (*end)
 342                 return -EIO;
 343
 344         str = next_string(skb);
 345         rate_down = simple_strtol(str, &end, 10);
 346         if (*end)
 347                 return -EIO;
 348
 349         state_str = next_string(skb);
 350         if (!strcmp(state_str, "Showtime"))
 351                 state = ATM_PHY_SIG_FOUND;
 352         else {
 353                 state = ATM_PHY_SIG_LOST;
 354                 release_vccs(card->atmdev[port]);
 355         }
 356
 357         str = next_string(skb);
 358         snr = simple_strtol(str, &end, 10);
 359         if (*end)
 360                 return -EIO;
 361
 362         str = next_string(skb);
 363         attn = simple_strtol(str, &end, 10);
 364         if (*end)
 365                 return -EIO;
 366
 367         if (state == ATM_PHY_SIG_LOST && !rate_up && !rate_down)
 368                 dev_info(&card->dev->dev, "Port %d ATM state: %s\n",
 369                          port, state_str);
 370         else
 371                 dev_info(&card->dev->dev, "Port %d ATM state: %s (%d/%d kb/s, SNR %ddB, Attn %ddB)\n",
 372                          port, state_str, rate_up/1000, rate_down/1000,
 373                          snr, attn);
 374
 375         card->atmdev[port]->link_rate = rate_down;
 376         card->atmdev[port]->signal = state;
 377
 378         return 0;
 379 }
 380
 381 static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
 382 {
 383         struct solos_param *prm;
 384         unsigned long flags;
 385         int cmdpid;
 386         int found = 0;
 387
 388         if (skb->len < 7)
 389                 return 0;
 390
 391         if (skb->data[0] != 'L'    || !isdigit(skb->data[1]) ||
 392             !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
 393             !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
 394             skb->data[6] != '\n')
 395                 return 0;
 396
 397         cmdpid = simple_strtol(&skb->data[1], NULL, 10);
 398
 399         spin_lock_irqsave(&card->param_queue_lock, flags);
 400         list_for_each_entry(prm, &card->param_queue, list) {
 401                 if (prm->port == port && prm->pid == cmdpid) {
 402                         prm->response = skb;
 403                         skb_pull(skb, 7);
 404                         wake_up(&card->param_wq);
 405                         found = 1;
 406                         break;
 407                 }
 408         }
 409         spin_unlock_irqrestore(&card->param_queue_lock, flags);
 410         return found;
 411 }
 412
 413 static ssize_t console_show(struct device *dev, struct device_attribute *attr,
 414                             char *buf)
 415 {
 416         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 417         struct solos_card *card = atmdev->dev_data;
 418         struct sk_buff *skb;
 419
 420         spin_lock(&card->cli_queue_lock);
 421         skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
 422         spin_unlock(&card->cli_queue_lock);
 423         if(skb == NULL)
 424                 return sprintf(buf, "No data.\n");
 425
 426         memcpy(buf, skb->data, skb->len);
 427         dev_dbg(&card->dev->dev, "len: %d\n", skb->len);
 428
 429         kfree_skb(skb);
 430         return skb->len;
 431 }
 432
 433 static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
 434 {
 435         struct sk_buff *skb;
 436         struct pkt_hdr *header;
 437
 438 //      dev_dbg(&card->dev->dev, "size: %d\n", size);
 439
 440         if (size > (BUF_SIZE - sizeof(*header))) {
 441                 dev_dbg(&card->dev->dev, "Command is too big.  Dropping request\n");
 442                 return 0;
 443         }
 444         skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
 445         if (!skb) {
 446                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
 447                 return 0;
 448         }
 449
 450         header = (void *)skb_put(skb, sizeof(*header));
 451
 452         header->size = cpu_to_le16(size);
 453         header->vpi = cpu_to_le16(0);
 454         header->vci = cpu_to_le16(0);
 455         header->type = cpu_to_le16(PKT_COMMAND);
 456
 457         memcpy(skb_put(skb, size), buf, size);
 458
 459         fpga_queue(card, dev, skb, NULL);
 460
 461         return 0;
 462 }
 463
 464 static ssize_t console_store(struct device *dev, struct device_attribute *attr,
 465                              const char *buf, size_t count)
 466 {
 467         struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
 468         struct solos_card *card = atmdev->dev_data;
 469         int err;
 470
 471         err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
 472
 473         return err?:count;
 474 }
 475
 476 static DEVICE_ATTR(console, 0644, console_show, console_store);
 477
 478
 479 #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
 480 #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
 481
 482 #include "solos-attrlist.c"
 483
 484 #undef SOLOS_ATTR_RO
 485 #undef SOLOS_ATTR_RW
 486
 487 #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
 488 #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
 489
 490 static struct attribute *solos_attrs[] = {
 491 #include "solos-attrlist.c"
 492         NULL
 493 };
 494
 495 static struct attribute_group solos_attr_group = {
 496         .attrs = solos_attrs,
 497         .name = "parameters",
 498 };
 499
 500 static int flash_upgrade(struct solos_card *card, int chip)
 501 {
 502         const struct firmware *fw;
 503         const char *fw_name;
 504         uint32_t data32 = 0;
 505         int blocksize = 0;
 506         int numblocks = 0;
 507         int offset;
 508
 509         if (chip == 0) {
 510                 fw_name = "solos-FPGA.bin";
 511                 blocksize = FPGA_BLOCK;
 512         } else {
 513                 fw_name = "solos-Firmware.bin";
 514                 blocksize = SOLOS_BLOCK;
 515         }
 516
 517         if (request_firmware(&fw, fw_name, &card->dev->dev))
 518                 return -ENOENT;
 519
 520         dev_info(&card->dev->dev, "Flash upgrade starting\n");
 521
 522         numblocks = fw->size / blocksize;
 523         dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
 524         dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
 525
 526         dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
 527         iowrite32(1, card->config_regs + FPGA_MODE);
 528         data32 = ioread32(card->config_regs + FPGA_MODE);
 529
 530         /* Set mode to Chip Erase */
 531         dev_info(&card->dev->dev, "Set FPGA Flash mode to %s Chip Erase\n",
 532                  chip?"Solos":"FPGA");
 533         iowrite32((chip * 2), card->config_regs + FLASH_MODE);
 534
 535
 536         iowrite32(1, card->config_regs + WRITE_FLASH);
 537         wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
 538
 539         for (offset = 0; offset < fw->size; offset += blocksize) {
 540                 int i;
 541
 542                 /* Clear write flag */
 543                 iowrite32(0, card->config_regs + WRITE_FLASH);
 544
 545                 /* Set mode to Block Write */
 546                 /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
 547                 iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
 548
 549                 /* Copy block to buffer, swapping each 16 bits */
 550                 for(i = 0; i < blocksize; i += 4) {
 551                         uint32_t word = swahb32p((uint32_t *)(fw->data + offset + i));
 552                         iowrite32(word, RX_BUF(card, 3) + i);
 553                 }
 554
 555                 /* Specify block number and then trigger flash write */
 556                 iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
 557                 iowrite32(1, card->config_regs + WRITE_FLASH);
 558                 wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
 559         }
 560
 561         release_firmware(fw);
 562         iowrite32(0, card->config_regs + WRITE_FLASH);
 563         iowrite32(0, card->config_regs + FPGA_MODE);
 564         iowrite32(0, card->config_regs + FLASH_MODE);
 565         dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
 566         return 0;
 567 }
 568
 569 static irqreturn_t solos_irq(int irq, void *dev_id)
 570 {
 571         struct solos_card *card = dev_id;
 572         int handled = 1;
 573
 574         //ACK IRQ
 575         iowrite32(0, card->config_regs + IRQ_CLEAR);
 576         //Disable IRQs from FPGA
 577         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
 578
 579         if (card->atmdev[0])
 580                 tasklet_schedule(&card->tlet);
 581         else
 582                 wake_up(&card->fw_wq);
 583
 584         //Enable IRQs from FPGA
 585         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
 586         return IRQ_RETVAL(handled);
 587 }
 588
 589 void solos_bh(unsigned long card_arg)
 590 {
 591         struct solos_card *card = (void *)card_arg;
 592         int port;
 593         uint32_t card_flags;
 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         if ((card_flags & card->tx_mask) != card->tx_mask)
 601                 fpga_tx(card);
 602
 603         for (port = 0; port < card->nr_ports; port++) {
 604                 if (card_flags & (0x10 << port)) {
 605                         struct pkt_hdr _hdr, *header;
 606                         struct sk_buff *skb;
 607                         struct atm_vcc *vcc;
 608                         int size;
 609
 610                         if (card->using_dma) {
 611                                 skb = card->rx_skb[port];
 612                                 card->rx_skb[port] = NULL;
 613
 614                                 pci_unmap_single(card->dev, SKB_CB(skb)->dma_addr,
 615                                                  RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
 616
 617                                 header = (void *)skb->data;
 618                                 size = le16_to_cpu(header->size);
 619                                 skb_put(skb, size + sizeof(*header));
 620                                 skb_pull(skb, sizeof(*header));
 621                         } else {
 622                                 header = &_hdr;
 623
 624                                 rx_done |= 0x10 << port;
 625
 626                                 memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
 627
 628                                 size = le16_to_cpu(header->size);
 629
 630                                 skb = alloc_skb(size + 1, GFP_ATOMIC);
 631                                 if (!skb) {
 632                                         if (net_ratelimit())
 633                                                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
 634                                         continue;
 635                                 }
 636
 637                                 memcpy_fromio(skb_put(skb, size),
 638                                               RX_BUF(card, port) + sizeof(*header),
 639                                               size);
 640                         }
 641                         if (atmdebug) {
 642                                 dev_info(&card->dev->dev, "Received: device %d\n", port);
 643                                 dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
 644                                          size, le16_to_cpu(header->vpi),
 645                                          le16_to_cpu(header->vci));
 646                                 print_buffer(skb);
 647                         }
 648
 649                         switch (le16_to_cpu(header->type)) {
 650                         case PKT_DATA:
 651                                 vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
 652                                                le16_to_cpu(header->vci));
 653                                 if (!vcc) {
 654                                         if (net_ratelimit())
 655                                                 dev_warn(&card->dev->dev, "Received packet for unknown VCI.VPI %d.%d on port %d\n",
 656                                                          le16_to_cpu(header->vci), le16_to_cpu(header->vpi),
 657                                                          port);
 658                                         continue;
 659                                 }
 660                                 atm_charge(vcc, skb->truesize);
 661                                 vcc->push(vcc, skb);
 662                                 atomic_inc(&vcc->stats->rx);
 663                                 break;
 664
 665                         case PKT_STATUS:
 666                                 process_status(card, port, skb);
 667                                 dev_kfree_skb_any(skb);
 668                                 break;
 669
 670                         case PKT_COMMAND:
 671                         default: /* FIXME: Not really, surely? */
 672                                 if (process_command(card, port, skb))
 673                                         break;
 674                                 spin_lock(&card->cli_queue_lock);
 675                                 if (skb_queue_len(&card->cli_queue[port]) > 10) {
 676                                         if (net_ratelimit())
 677                                                 dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
 678                                                          port);
 679                                         dev_kfree_skb_any(skb);
 680                                 } else
 681                                         skb_queue_tail(&card->cli_queue[port], skb);
 682                                 spin_unlock(&card->cli_queue_lock);
 683                                 break;
 684                         }
 685                 }
 686                 /* Allocate RX skbs for any ports which need them */
 687                 if (card->using_dma && card->atmdev[port] &&
 688                     !card->rx_skb[port]) {
 689                         struct sk_buff *skb = alloc_skb(RX_DMA_SIZE, GFP_ATOMIC);
 690                         if (skb) {
 691                                 SKB_CB(skb)->dma_addr =
 692                                         pci_map_single(card->dev, skb->data,
 693                                                        RX_DMA_SIZE, PCI_DMA_FROMDEVICE);
 694                                 iowrite32(SKB_CB(skb)->dma_addr,
 695                                           card->config_regs + RX_DMA_ADDR(port));
 696                                 card->rx_skb[port] = skb;
 697                         } else {
 698                                 if (net_ratelimit())
 699                                         dev_warn(&card->dev->dev, "Failed to allocate RX skb");
 700
 701                                 /* We'll have to try again later */
 702                                 tasklet_schedule(&card->tlet);
 703                         }
 704                 }
 705         }
 706         if (rx_done)
 707                 iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
 708
 709         return;
 710 }
 711
 712 static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
 713 {
 714         struct hlist_head *head;
 715         struct atm_vcc *vcc = NULL;
 716         struct hlist_node *node;
 717         struct sock *s;
 718
 719         read_lock(&vcc_sklist_lock);
 720         head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 721         sk_for_each(s, node, head) {
 722                 vcc = atm_sk(s);
 723                 if (vcc->dev == dev && vcc->vci == vci &&
 724                     vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE)
 725                         goto out;
 726         }
 727         vcc = NULL;
 728  out:
 729         read_unlock(&vcc_sklist_lock);
 730         return vcc;
 731 }
 732
 733 static int list_vccs(int vci)
 734 {
 735         struct hlist_head *head;
 736         struct atm_vcc *vcc;
 737         struct hlist_node *node;
 738         struct sock *s;
 739         int num_found = 0;
 740         int i;
 741
 742         read_lock(&vcc_sklist_lock);
 743         if (vci != 0){
 744                 head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
 745                 sk_for_each(s, node, head) {
 746                         num_found ++;
 747                         vcc = atm_sk(s);
 748                         printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 749                                vcc->dev->number,
 750                                vcc->vpi,
 751                                vcc->vci);
 752                 }
 753         } else {
 754                 for(i = 0; i < VCC_HTABLE_SIZE; i++){
 755                         head = &vcc_hash[i];
 756                         sk_for_each(s, node, head) {
 757                                 num_found ++;
 758                                 vcc = atm_sk(s);
 759                                 printk(KERN_DEBUG "Device: %d Vpi: %d Vci: %d\n",
 760                                        vcc->dev->number,
 761                                        vcc->vpi,
 762                                        vcc->vci);
 763                         }
 764                 }
 765         }
 766         read_unlock(&vcc_sklist_lock);
 767         return num_found;
 768 }
 769
 770 static void release_vccs(struct atm_dev *dev)
 771 {
 772         int i;
 773
 774         write_lock_irq(&vcc_sklist_lock);
 775         for (i = 0; i < VCC_HTABLE_SIZE; i++) {
 776                 struct hlist_head *head = &vcc_hash[i];
 777                 struct hlist_node *node, *tmp;
 778                 struct sock *s;
 779                 struct atm_vcc *vcc;
 780
 781                 sk_for_each_safe(s, node, tmp, head) {
 782                         vcc = atm_sk(s);
 783                         if (vcc->dev == dev) {
 784                                 vcc_release_async(vcc, -EPIPE);
 785                                 sk_del_node_init(s);
 786                         }
 787                 }
 788         }
 789         write_unlock_irq(&vcc_sklist_lock);
 790 }
 791
 792
 793 static int popen(struct atm_vcc *vcc)
 794 {
 795         struct solos_card *card = vcc->dev->dev_data;
 796         struct sk_buff *skb;
 797         struct pkt_hdr *header;
 798
 799         if (vcc->qos.aal != ATM_AAL5) {
 800                 dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
 801                          vcc->qos.aal);
 802                 return -EINVAL;
 803         }
 804
 805         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 806         if (!skb && net_ratelimit()) {
 807                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
 808                 return -ENOMEM;
 809         }
 810         header = (void *)skb_put(skb, sizeof(*header));
 811
 812         header->size = cpu_to_le16(0);
 813         header->vpi = cpu_to_le16(vcc->vpi);
 814         header->vci = cpu_to_le16(vcc->vci);
 815         header->type = cpu_to_le16(PKT_POPEN);
 816
 817         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 818
 819 //      dev_dbg(&card->dev->dev, "Open for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 820         set_bit(ATM_VF_ADDR, &vcc->flags); // accept the vpi / vci
 821         set_bit(ATM_VF_READY, &vcc->flags);
 822         list_vccs(0);
 823
 824
 825         return 0;
 826 }
 827
 828 static void pclose(struct atm_vcc *vcc)
 829 {
 830         struct solos_card *card = vcc->dev->dev_data;
 831         struct sk_buff *skb;
 832         struct pkt_hdr *header;
 833
 834         skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
 835         if (!skb) {
 836                 dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
 837                 return;
 838         }
 839         header = (void *)skb_put(skb, sizeof(*header));
 840
 841         header->size = cpu_to_le16(0);
 842         header->vpi = cpu_to_le16(vcc->vpi);
 843         header->vci = cpu_to_le16(vcc->vci);
 844         header->type = cpu_to_le16(PKT_PCLOSE);
 845
 846         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
 847
 848 //      dev_dbg(&card->dev->dev, "Close for vpi %d and vci %d on interface %d\n", vcc->vpi, vcc->vci, SOLOS_CHAN(vcc->dev));
 849
 850         clear_bit(ATM_VF_ADDR, &vcc->flags);
 851         clear_bit(ATM_VF_READY, &vcc->flags);
 852
 853         return;
 854 }
 855
 856 static int print_buffer(struct sk_buff *buf)
 857 {
 858         int len,i;
 859         char msg[500];
 860         char item[10];
 861
 862         len = buf->len;
 863         for (i = 0; i < len; i++){
 864                 if(i % 8 == 0)
 865                         sprintf(msg, "%02X: ", i);
 866
 867                 sprintf(item,"%02X ",*(buf->data + i));
 868                 strcat(msg, item);
 869                 if(i % 8 == 7) {
 870                         sprintf(item, "\n");
 871                         strcat(msg, item);
 872                         printk(KERN_DEBUG "%s", msg);
 873                 }
 874         }
 875         if (i % 8 != 0) {
 876                 sprintf(item, "\n");
 877                 strcat(msg, item);
 878                 printk(KERN_DEBUG "%s", msg);
 879         }
 880         printk(KERN_DEBUG "\n");
 881
 882         return 0;
 883 }
 884
 885 static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
 886                        struct atm_vcc *vcc)
 887 {
 888         int old_len;
 889         unsigned long flags;
 890
 891         SKB_CB(skb)->vcc = vcc;
 892
 893         spin_lock_irqsave(&card->tx_queue_lock, flags);
 894         old_len = skb_queue_len(&card->tx_queue[port]);
 895         skb_queue_tail(&card->tx_queue[port], skb);
 896         if (!old_len) {
 897                 card->tx_mask |= (1 << port);
 898         }
 899         spin_unlock_irqrestore(&card->tx_queue_lock, flags);
 900
 901         /* Theoretically we could just schedule the tasklet here, but
 902            that introduces latency we don't want -- it's noticeable */
 903         if (!old_len)
 904                 fpga_tx(card);
 905 }
 906
 907 static int fpga_tx(struct solos_card *card)
 908 {
 909         uint32_t tx_pending;
 910         uint32_t tx_started = 0;
 911         struct sk_buff *skb;
 912         struct atm_vcc *vcc;
 913         unsigned char port;
 914         unsigned long flags;
 915
 916         spin_lock_irqsave(&card->tx_lock, flags);
 917
 918         tx_pending = ioread32(card->config_regs + FLAGS_ADDR) & card->tx_mask;
 919
 920         dev_vdbg(&card->dev->dev, "TX Flags are %X\n", tx_pending);
 921
 922         for (port = 0; port < card->nr_ports; port++) {
 923                 if (card->atmdev[port] && !(tx_pending & (1 << port))) {
 924                         struct sk_buff *oldskb = card->tx_skb[port];
 925
 926                         if (oldskb)
 927                                 pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
 928                                                  oldskb->len, PCI_DMA_TODEVICE);
 929
 930                         spin_lock(&card->tx_queue_lock);
 931                         skb = skb_dequeue(&card->tx_queue[port]);
 932                         if (!skb)
 933                                 card->tx_mask &= ~(1 << port);
 934                         spin_unlock(&card->tx_queue_lock);
 935
 936                         if (skb && !card->using_dma) {
 937                                 memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
 938                                 tx_started |= 1 << port; //Set TX full flag
 939                                 oldskb = skb; /* We're done with this skb already */
 940                         } else if (skb && card->using_dma) {
 941                                 SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
 942                                                                        skb->len, PCI_DMA_TODEVICE);
 943                                 iowrite32(SKB_CB(skb)->dma_addr,
 944                                           card->config_regs + TX_DMA_ADDR(port));
 945                         }
 946
 947                         if (!oldskb)
 948                                 continue;
 949
 950                         /* Clean up and free oldskb now it's gone */
 951                         if (atmdebug) {
 952                                 dev_info(&card->dev->dev, "Transmitted: port %d\n",
 953                                          port);
 954                                 print_buffer(oldskb);
 955                         }
 956
 957                         vcc = SKB_CB(oldskb)->vcc;
 958
 959                         if (vcc) {
 960                                 atomic_inc(&vcc->stats->tx);
 961                                 solos_pop(vcc, oldskb);
 962                         } else
 963                                 dev_kfree_skb_irq(oldskb);
 964
 965                 }
 966         }
 967         if (tx_started)
 968                 iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
 969
 970         spin_unlock_irqrestore(&card->tx_lock, flags);
 971         return 0;
 972 }
 973
 974 static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
 975 {
 976         struct solos_card *card = vcc->dev->dev_data;
 977         struct sk_buff *skb2 = NULL;
 978         struct pkt_hdr *header;
 979         int pktlen;
 980
 981         //dev_dbg(&card->dev->dev, "psend called.\n");
 982         //dev_dbg(&card->dev->dev, "dev,vpi,vci = %d,%d,%d\n",SOLOS_CHAN(vcc->dev),vcc->vpi,vcc->vci);
 983
 984         if (debug) {
 985                 skb2 = atm_alloc_charge(vcc, skb->len, GFP_ATOMIC);
 986                 if (skb2) {
 987                         memcpy(skb2->data, skb->data, skb->len);
 988                         skb_put(skb2, skb->len);
 989                         vcc->push(vcc, skb2);
 990                         atomic_inc(&vcc->stats->rx);
 991                 }
 992                 atomic_inc(&vcc->stats->tx);
 993                 solos_pop(vcc, skb);
 994                 return 0;
 995         }
 996
 997         pktlen = skb->len;
 998         if (pktlen > (BUF_SIZE - sizeof(*header))) {
 999                 dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
1000                 solos_pop(vcc, skb);
1001                 return 0;
1002         }
1003
1004         if (!skb_clone_writable(skb, sizeof(*header))) {
1005                 int expand_by = 0;
1006                 int ret;
1007
1008                 if (skb_headroom(skb) < sizeof(*header))
1009                         expand_by = sizeof(*header) - skb_headroom(skb);
1010
1011                 ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
1012                 if (ret) {
1013                         dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
1014                         solos_pop(vcc, skb);
1015                         return ret;
1016                 }
1017         }
1018
1019         header = (void *)skb_push(skb, sizeof(*header));
1020
1021         /* This does _not_ include the size of the header */
1022         header->size = cpu_to_le16(pktlen);
1023         header->vpi = cpu_to_le16(vcc->vpi);
1024         header->vci = cpu_to_le16(vcc->vci);
1025         header->type = cpu_to_le16(PKT_DATA);
1026
1027         fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
1028
1029         return 0;
1030 }
1031
1032 static struct atmdev_ops fpga_ops = {
1033         .open =         popen,
1034         .close =        pclose,
1035         .ioctl =        NULL,
1036         .getsockopt =   NULL,
1037         .setsockopt =   NULL,
1038         .send =         psend,
1039         .send_oam =     NULL,
1040         .phy_put =      NULL,
1041         .phy_get =      NULL,
1042         .change_qos =   NULL,
1043         .proc_read =    NULL,
1044         .owner =        THIS_MODULE
1045 };
1046
1047 static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
1048 {
1049         int err, i;
1050         uint16_t fpga_ver;
1051         uint8_t major_ver, minor_ver;
1052         uint32_t data32;
1053         struct solos_card *card;
1054
1055         if (debug)
1056                 return 0;
1057
1058         card = kzalloc(sizeof(*card), GFP_KERNEL);
1059         if (!card)
1060                 return -ENOMEM;
1061
1062         card->dev = dev;
1063         init_waitqueue_head(&card->fw_wq);
1064         init_waitqueue_head(&card->param_wq);
1065
1066         err = pci_enable_device(dev);
1067         if (err) {
1068                 dev_warn(&dev->dev,  "Failed to enable PCI device\n");
1069                 goto out;
1070         }
1071
1072         err = pci_set_dma_mask(dev, DMA_32BIT_MASK);
1073         if (err) {
1074                 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
1075                 goto out;
1076         }
1077
1078         err = pci_request_regions(dev, "solos");
1079         if (err) {
1080                 dev_warn(&dev->dev, "Failed to request regions\n");
1081                 goto out;
1082         }
1083
1084         card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
1085         if (!card->config_regs) {
1086                 dev_warn(&dev->dev, "Failed to ioremap config registers\n");
1087                 goto out_release_regions;
1088         }
1089         card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
1090         if (!card->buffers) {
1091                 dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
1092                 goto out_unmap_config;
1093         }
1094
1095 //      for(i=0;i<64 ;i+=4){
1096 //              data32=ioread32(card->buffers + i);
1097 //              dev_dbg(&card->dev->dev, "%08lX\n",(unsigned long)data32);
1098 //      }
1099
1100         //Fill Config Mem with zeros
1101         for(i = 0; i < 128; i += 4)
1102                 iowrite32(0, card->config_regs + i);
1103
1104         //Set RX empty flags
1105         iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1106
1107         data32 = ioread32(card->config_regs + FPGA_VER);
1108         fpga_ver = (data32 & 0x0000FFFF);
1109         major_ver = ((data32 & 0xFF000000) >> 24);
1110         minor_ver = ((data32 & 0x00FF0000) >> 16);
1111         dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
1112                  major_ver, minor_ver, fpga_ver);
1113
1114         if (fpga_ver > 27)
1115                 card->using_dma = 1;
1116
1117         card->nr_ports = 2; /* FIXME: Detect daughterboard */
1118
1119         pci_set_drvdata(dev, card);
1120
1121         tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
1122         spin_lock_init(&card->tx_lock);
1123         spin_lock_init(&card->tx_queue_lock);
1124         spin_lock_init(&card->cli_queue_lock);
1125         spin_lock_init(&card->param_queue_lock);
1126         INIT_LIST_HEAD(&card->param_queue);
1127
1128 /*
1129         // Set Loopback mode
1130         data32 = 0x00010000;
1131         iowrite32(data32,card->config_regs + FLAGS_ADDR);
1132 */
1133 /*
1134         // Fill Buffers with zeros
1135         for (i = 0; i < BUF_SIZE * 8; i += 4)
1136                 iowrite32(0, card->buffers + i);
1137 */
1138 /*
1139         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1140                 iowrite32(0x12345678, card->buffers + i + (0*BUF_SIZE));
1141         for(i = 0; i < (BUF_SIZE * 1); i += 4)
1142                 iowrite32(0xabcdef98, card->buffers + i + (1*BUF_SIZE));
1143
1144         // Read Config Memory
1145         printk(KERN_DEBUG "Reading Config MEM\n");
1146         i = 0;
1147         for(i = 0; i < 16; i++) {
1148                 data32=ioread32(card->buffers + i*(BUF_SIZE/2));
1149                 printk(KERN_ALERT "Addr: %lX Data: %08lX\n",
1150                        (unsigned long)(addr_start + i*(BUF_SIZE/2)),
1151                        (unsigned long)data32);
1152         }
1153 */
1154         //dev_dbg(&card->dev->dev, "Requesting IRQ: %d\n",dev->irq);
1155         err = request_irq(dev->irq, solos_irq, IRQF_DISABLED|IRQF_SHARED,
1156                           "solos-pci", card);
1157         if (err) {
1158                 dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1159                 goto out_unmap_both;
1160         }
1161
1162         // Enable IRQs
1163         iowrite32(1, card->config_regs + IRQ_EN_ADDR);
1164
1165         if (fpga_upgrade)
1166                 flash_upgrade(card, 0);
1167
1168         if (firmware_upgrade)
1169                 flash_upgrade(card, 1);
1170
1171         err = atm_init(card);
1172         if (err)
1173                 goto out_free_irq;
1174
1175         return 0;
1176
1177  out_free_irq:
1178         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1179         free_irq(dev->irq, card);
1180         tasklet_kill(&card->tlet);
1181
1182  out_unmap_both:
1183         pci_set_drvdata(dev, NULL);
1184         pci_iounmap(dev, card->config_regs);
1185  out_unmap_config:
1186         pci_iounmap(dev, card->buffers);
1187  out_release_regions:
1188         pci_release_regions(dev);
1189  out:
1190         return err;
1191 }
1192
1193 static int atm_init(struct solos_card *card)
1194 {
1195         int i;
1196
1197         for (i = 0; i < card->nr_ports; i++) {
1198                 struct sk_buff *skb;
1199                 struct pkt_hdr *header;
1200
1201                 skb_queue_head_init(&card->tx_queue[i]);
1202                 skb_queue_head_init(&card->cli_queue[i]);
1203
1204                 card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL);
1205                 if (!card->atmdev[i]) {
1206                         dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
1207                         atm_remove(card);
1208                         return -ENODEV;
1209                 }
1210                 if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
1211                         dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1212                 if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1213                         dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
1214
1215                 dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
1216
1217                 card->atmdev[i]->ci_range.vpi_bits = 8;
1218                 card->atmdev[i]->ci_range.vci_bits = 16;
1219                 card->atmdev[i]->dev_data = card;
1220                 card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1221                 card->atmdev[i]->signal = ATM_PHY_SIG_UNKNOWN;
1222
1223                 skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
1224                 if (!skb) {
1225                         dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
1226                         continue;
1227                 }
1228
1229                 header = (void *)skb_put(skb, sizeof(*header));
1230
1231                 header->size = cpu_to_le16(0);
1232                 header->vpi = cpu_to_le16(0);
1233                 header->vci = cpu_to_le16(0);
1234                 header->type = cpu_to_le16(PKT_STATUS);
1235
1236                 fpga_queue(card, i, skb, NULL);
1237         }
1238         return 0;
1239 }
1240
1241 static void atm_remove(struct solos_card *card)
1242 {
1243         int i;
1244
1245         for (i = 0; i < card->nr_ports; i++) {
1246                 if (card->atmdev[i]) {
1247                         dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1248
1249                         sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
1250                         atm_dev_deregister(card->atmdev[i]);
1251                 }
1252         }
1253 }
1254
1255 static void fpga_remove(struct pci_dev *dev)
1256 {
1257         struct solos_card *card = pci_get_drvdata(dev);
1258
1259         if (debug)
1260                 return;
1261
1262         atm_remove(card);
1263
1264         dev_vdbg(&dev->dev, "Freeing IRQ\n");
1265         // Disable IRQs from FPGA
1266         iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1267         free_irq(dev->irq, card);
1268         tasklet_kill(&card->tlet);
1269
1270         //      iowrite32(0x01,pciregs);
1271         dev_vdbg(&dev->dev, "Unmapping PCI resource\n");
1272         pci_iounmap(dev, card->buffers);
1273         pci_iounmap(dev, card->config_regs);
1274
1275         dev_vdbg(&dev->dev, "Releasing PCI Region\n");
1276         pci_release_regions(dev);
1277         pci_disable_device(dev);
1278
1279         pci_set_drvdata(dev, NULL);
1280         kfree(card);
1281 //      dev_dbg(&card->dev->dev, "fpga_remove\n");
1282         return;
1283 }
1284
1285 static struct pci_device_id fpga_pci_tbl[] __devinitdata = {
1286         { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1287         { 0, }
1288 };
1289
1290 MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
1291
1292 static struct pci_driver fpga_driver = {
1293         .name =         "solos",
1294         .id_table =     fpga_pci_tbl,
1295         .probe =        fpga_probe,
1296         .remove =       fpga_remove,
1297 };
1298
1299
1300 static int __init solos_pci_init(void)
1301 {
1302         printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
1303         return pci_register_driver(&fpga_driver);
1304 }
1305
1306 static void __exit solos_pci_exit(void)
1307 {
1308         pci_unregister_driver(&fpga_driver);
1309         printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
1310 }
1311
1312 module_init(solos_pci_init);
1313 module_exit(solos_pci_exit);