drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c

   1 //---------------------------------------------------------------------------
   2 // FT1000 driver for Flarion Flash OFDM NIC Device
   3 //
   4 // Copyright (C) 2006 Flarion Technologies, All rights reserved.
   5 //
   6 // This program is free software; you can redistribute it and/or modify it
   7 // under the terms of the GNU General Public License as published by the Free
   8 // Software Foundation; either version 2 of the License, or (at your option) any
   9 // later version. This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  11 // or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 // more details. You should have received a copy of the GNU General Public
  13 // License along with this program; if not, write to the
  14 // Free Software Foundation, Inc., 59 Temple Place -
  15 // Suite 330, Boston, MA 02111-1307, USA.
  16 //---------------------------------------------------------------------------
  17 //
  18 // File:         ft1000_chdev.c
  19 //
  20 // Description:  Custom character device dispatch routines.
  21 //
  22 // History:
  23 // 8/29/02    Whc                Ported to Linux.
  24 // 6/05/06    Whc                Porting to Linux 2.6.9
  25 //
  26 //---------------------------------------------------------------------------
  27 #include <linux/module.h>
  28 #include <linux/kernel.h>
  29 #include <linux/sched.h>
  30 #include <linux/signal.h>
  31 #include <linux/errno.h>
  32 #include <linux/poll.h>
  33 #include <linux/netdevice.h>
  34 #include <linux/delay.h>
  35
  36 #include <linux/fs.h>
  37 #include <linux/kmod.h>
  38 #include <linux/ioctl.h>
  39 #include <linux/unistd.h>
  40
  41 #include "ft1000_usb.h"
  42 //#include "ft1000_ioctl.h"
  43
  44 static int ft1000_flarion_cnt = 0;
  45
  46 //need to looking usage of ft1000Handle
  47
  48 static int ft1000_ChOpen (struct inode *Inode, struct file *File);
  49 static unsigned int ft1000_ChPoll(struct file *file, poll_table *wait);
  50 static long ft1000_ChIoctl(struct file *File, unsigned int Command,
  51                            unsigned long Argument);
  52 static int ft1000_ChRelease (struct inode *Inode, struct file *File);
  53
  54 // Global pointer to device object
  55 static struct ft1000_device *pdevobj[MAX_NUM_CARDS + 2];
  56 //static devfs_handle_t ft1000Handle[MAX_NUM_CARDS];
  57
  58 // List to free receive command buffer pool
  59 struct list_head freercvpool;
  60
  61 // lock to arbitrate free buffer list for receive command data
  62 spinlock_t free_buff_lock;
  63
  64 int numofmsgbuf = 0;
  65
  66 // Global variable to indicate that all provisioning data is sent to DSP
  67 //BOOLEAN fProvComplete;
  68
  69 //
  70 // Table of entry-point routines for char device
  71 //
  72 static struct file_operations ft1000fops =
  73 {
  74         .unlocked_ioctl = ft1000_ChIoctl,
  75         .poll           = ft1000_ChPoll,
  76         .open           = ft1000_ChOpen,
  77         .release        = ft1000_ChRelease,
  78         .llseek         = no_llseek,
  79 };
  80
  81
  82
  83
  84 //---------------------------------------------------------------------------
  85 // Function:    exec_mknod
  86 //
  87 // Parameters:
  88 //
  89 // Returns:
  90 //
  91 // Description:
  92 //
  93 // Notes:
  94 //
  95 //---------------------------------------------------------------------------
  96 static int exec_mknod (void *pdata)
  97 {
  98         struct ft1000_info *info;
  99     char mjnum[4];
 100     char minornum[4];
 101     char temp[32];
 102     int retcode;
 103 //    int i;                                    //aelias [-] reason : unused variable
 104     char *envp[] = { "HOME=/", "PATH=/usr/bin:/bin", NULL };
 105     char *argv[]={"-m 666",temp,"c",mjnum,minornum,NULL};
 106
 107     info = pdata;
 108     DEBUG("ft1000_chdev:exec_mknod is called with major number = %d\n", info->DeviceMajor);
 109     sprintf(temp, "%s%s", "/dev/", info->DeviceName) ;
 110     sprintf(mjnum, "%d", info->DeviceMajor);
 111     sprintf(minornum, "%d", info->CardNumber);
 112
 113     //char *argv[]={"mknod","-m 666",temp,"c",mjnum,minornum,NULL};
 114 //    char *argv[]={"-m 666",temp,"c",mjnum,minornum,NULL};
 115
 116     //for (i=0; i<7;i++)
 117     //    DEBUG("argv[%d]=%s\n", i, argv[i]);
 118
 119
 120     retcode = call_usermodehelper ("/bin/mknod", argv, envp, 1);
 121     if (retcode) {
 122         DEBUG("ft1000_chdev:exec_mknod failed to make the node: retcode = %d\n", retcode);
 123     }
 124
 125
 126
 127     return retcode;
 128
 129 }
 130
 131 //---------------------------------------------------------------------------
 132 // Function:    rm_mknod
 133 //
 134 // Description: This module removes the FT1000 device file
 135 //
 136 //---------------------------------------------------------------------------
 137 static int rm_mknod (void *pdata)
 138 {
 139
 140         struct ft1000_info *info;
 141     //char *argv[4]={"rm", "-f", "/dev/FT1000", NULL};
 142     int retcode;
 143     char temp[32];
 144     char *argv[]={"rm", "-f", temp, NULL};
 145
 146         info = (struct ft1000_info *)pdata;
 147     DEBUG("ft1000_chdev:rm_mknod is called for device %s\n", info->DeviceName);
 148     sprintf(temp, "%s%s", "/dev/", info->DeviceName) ;
 149
 150 //    char *argv[]={"rm", "-f", temp, NULL};
 151
 152     retcode = call_usermodehelper ("/bin/rm", argv, NULL, 1);
 153     if (retcode) {
 154         DEBUG("ft1000_chdev:rm_mknod failed to remove the node: retcode = %d\n", retcode);
 155     }
 156     else
 157         DEBUG("ft1000_chdev:rm_mknod done!\n");
 158
 159
 160     return retcode;
 161
 162 }
 163 //---------------------------------------------------------------------------
 164 // Function:    ft1000_get_buffer
 165 //
 166 // Parameters:
 167 //
 168 // Returns:
 169 //
 170 // Description:
 171 //
 172 // Notes:
 173 //
 174 //---------------------------------------------------------------------------
 175 struct dpram_blk *ft1000_get_buffer(struct list_head *bufflist)
 176 {
 177     unsigned long flags;
 178         struct dpram_blk *ptr;
 179
 180     spin_lock_irqsave(&free_buff_lock, flags);
 181     // Check if buffer is available
 182     if ( list_empty(bufflist) ) {
 183         DEBUG("ft1000_get_buffer:  No more buffer - %d\n", numofmsgbuf);
 184         ptr = NULL;
 185     }
 186     else {
 187         numofmsgbuf--;
 188         ptr = list_entry(bufflist->next, struct dpram_blk, list);
 189         list_del(&ptr->list);
 190         //DEBUG("ft1000_get_buffer: number of free msg buffers = %d\n", numofmsgbuf);
 191     }
 192     spin_unlock_irqrestore(&free_buff_lock, flags);
 193
 194     return ptr;
 195 }
 196
 197
 198
 199
 200 //---------------------------------------------------------------------------
 201 // Function:    ft1000_free_buffer
 202 //
 203 // Parameters:
 204 //
 205 // Returns:
 206 //
 207 // Description:
 208 //
 209 // Notes:
 210 //
 211 //---------------------------------------------------------------------------
 212 void ft1000_free_buffer(struct dpram_blk *pdpram_blk, struct list_head *plist)
 213 {
 214     unsigned long flags;
 215
 216     spin_lock_irqsave(&free_buff_lock, flags);
 217     // Put memory back to list
 218     list_add_tail(&pdpram_blk->list, plist);
 219     numofmsgbuf++;
 220     //DEBUG("ft1000_free_buffer: number of free msg buffers = %d\n", numofmsgbuf);
 221     spin_unlock_irqrestore(&free_buff_lock, flags);
 222 }
 223
 224 //---------------------------------------------------------------------------
 225 // Function:    ft1000_CreateDevice
 226 //
 227 // Parameters:  dev - pointer to adapter object
 228 //
 229 // Returns:     0 if successful
 230 //
 231 // Description: Creates a private char device.
 232 //
 233 // Notes:       Only called by init_module().
 234 //
 235 //---------------------------------------------------------------------------
 236 int ft1000_CreateDevice(struct ft1000_device *dev)
 237 {
 238         struct ft1000_info *info = netdev_priv(dev->net);
 239     int result;
 240     int i;
 241     pid_t pid;
 242
 243     // make a new device name
 244     sprintf(info->DeviceName, "%s%d", "FT100", info->CardNumber);
 245
 246     // Delete any existing FT1000 node
 247     pid = kernel_thread (rm_mknod,(void *)info, 0);
 248     msleep(1000);
 249
 250     DEBUG("ft1000_CreateDevice: number of instance = %d\n", ft1000_flarion_cnt);
 251     DEBUG("DeviceCreated = %x\n", info->DeviceCreated);
 252
 253     //save the device info to global array
 254     pdevobj[info->CardNumber] = dev;
 255
 256     DEBUG("ft1000_CreateDevice: ******SAVED pdevobj[%d]=%p\n", info->CardNumber, pdevobj[info->CardNumber]);    //aelias [+] reason:up
 257
 258     if (info->DeviceCreated)
 259     {
 260         DEBUG("ft1000_CreateDevice: \"%s\" already registered\n", info->DeviceName);
 261         return -EIO;
 262     }
 263
 264
 265     // register the device
 266     DEBUG("ft1000_CreateDevice: \"%s\" device registration\n", info->DeviceName);
 267     info->DeviceMajor = 0;
 268
 269     result = register_chrdev(info->DeviceMajor, info->DeviceName, &ft1000fops);
 270     if (result < 0)
 271     {
 272         DEBUG("ft1000_CreateDevice: unable to get major %d\n", info->DeviceMajor);
 273         return result;
 274     }
 275
 276     DEBUG("ft1000_CreateDevice: registered char device \"%s\"\n", info->DeviceName);
 277
 278     // save a dynamic device major number
 279     if (info->DeviceMajor == 0)
 280     {
 281         info->DeviceMajor = result;
 282         DEBUG("ft1000_PcdCreateDevice: device major = %d\n", info->DeviceMajor);
 283     }
 284
 285     // Create a thread to call user mode app to mknod
 286     pid = kernel_thread (exec_mknod, (void *)info, 0);
 287
 288     // initialize application information
 289
 290 //    if (ft1000_flarion_cnt == 0) {
 291 //
 292 //        DEBUG("Initialize free_buff_lock and freercvpool\n");
 293 //        spin_lock_init(&free_buff_lock);
 294 //
 295 //        // initialize a list of buffers to be use for queuing up receive command data
 296 //        INIT_LIST_HEAD (&freercvpool);
 297 //
 298 //        // create list of free buffers
 299 //        for (i=0; i<NUM_OF_FREE_BUFFERS; i++) {
 300 //            // Get memory for DPRAM_DATA link list
 301 //            pdpram_blk = kmalloc ( sizeof(struct dpram_blk), GFP_KERNEL );
 302 //            // Get a block of memory to store command data
 303 //            pdpram_blk->pbuffer = kmalloc ( MAX_CMD_SQSIZE, GFP_KERNEL );
 304 //            // link provisioning data
 305 //            list_add_tail (&pdpram_blk->list, &freercvpool);
 306 //        }
 307 //        numofmsgbuf = NUM_OF_FREE_BUFFERS;
 308 //    }
 309
 310
 311     // initialize application information
 312     info->appcnt = 0;
 313     for (i=0; i<MAX_NUM_APP; i++) {
 314         info->app_info[i].nTxMsg = 0;
 315         info->app_info[i].nRxMsg = 0;
 316         info->app_info[i].nTxMsgReject = 0;
 317         info->app_info[i].nRxMsgMiss = 0;
 318         info->app_info[i].fileobject = NULL;
 319         info->app_info[i].app_id = i+1;
 320         info->app_info[i].DspBCMsgFlag = 0;
 321         info->app_info[i].NumOfMsg = 0;
 322         init_waitqueue_head(&info->app_info[i].wait_dpram_msg);
 323         INIT_LIST_HEAD (&info->app_info[i].app_sqlist);
 324     }
 325
 326
 327
 328
 329 //    ft1000Handle[info->CardNumber] = devfs_register(NULL, info->DeviceName, DEVFS_FL_AUTO_DEVNUM, 0, 0,
 330 //                                  S_IFCHR | S_IRUGO | S_IWUGO, &ft1000fops, NULL);
 331
 332
 333     info->DeviceCreated = TRUE;
 334     ft1000_flarion_cnt++;
 335
 336     return result;
 337 }
 338
 339 //---------------------------------------------------------------------------
 340 // Function:    ft1000_DestroyDeviceDEBUG
 341 //
 342 // Parameters:  dev - pointer to adapter object
 343 //
 344 // Description: Destroys a private char device.
 345 //
 346 // Notes:       Only called by cleanup_module().
 347 //
 348 //---------------------------------------------------------------------------
 349 void ft1000_DestroyDevice(struct net_device *dev)
 350 {
 351         struct ft1000_info *info = netdev_priv(dev);
 352     int result = 0;
 353     pid_t pid;
 354                 int i;
 355         struct dpram_blk *pdpram_blk;
 356         struct dpram_blk *ptr;
 357
 358     DEBUG("ft1000_chdev:ft1000_DestroyDevice called\n");
 359
 360
 361
 362     if (info->DeviceCreated)
 363         {
 364         ft1000_flarion_cnt--;
 365                 unregister_chrdev(info->DeviceMajor, info->DeviceName);
 366                 DEBUG("ft1000_DestroyDevice: unregistered device \"%s\", result = %d\n",
 367                                            info->DeviceName, result);
 368
 369        pid = kernel_thread (rm_mknod, (void *)info, 0);
 370
 371         // Make sure we free any memory reserve for slow Queue
 372         for (i=0; i<MAX_NUM_APP; i++) {
 373             while (list_empty(&info->app_info[i].app_sqlist) == 0) {
 374                 pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, struct dpram_blk, list);
 375                 list_del(&pdpram_blk->list);
 376                 ft1000_free_buffer(pdpram_blk, &freercvpool);
 377
 378             }
 379             wake_up_interruptible(&info->app_info[i].wait_dpram_msg);
 380         }
 381
 382         // Remove buffer allocated for receive command data
 383         if (ft1000_flarion_cnt == 0) {
 384             while (list_empty(&freercvpool) == 0) {
 385                 ptr = list_entry(freercvpool.next, struct dpram_blk, list);
 386                 list_del(&ptr->list);
 387                 kfree(ptr->pbuffer);
 388                 kfree(ptr);
 389             }
 390         }
 391
 392 //        devfs_unregister(ft1000Handle[info->CardNumber]);
 393
 394                 info->DeviceCreated = FALSE;
 395
 396                 pdevobj[info->CardNumber] = NULL;
 397         }
 398
 399
 400 }
 401
 402 //---------------------------------------------------------------------------
 403 // Function:    ft1000_ChOpen
 404 //
 405 // Parameters:
 406 //
 407 // Description:
 408 //
 409 // Notes:
 410 //
 411 //---------------------------------------------------------------------------
 412 static int ft1000_ChOpen (struct inode *Inode, struct file *File)
 413 {
 414         struct ft1000_info *info;
 415     int i,num;
 416
 417     DEBUG("ft1000_ChOpen called\n");
 418     num = (MINOR(Inode->i_rdev) & 0xf);
 419     DEBUG("ft1000_ChOpen: minor number=%d\n", num);
 420
 421     for (i=0; i<5; i++)
 422         DEBUG("pdevobj[%d]=%p\n", i, pdevobj[i]); //aelias [+] reason: down
 423
 424     if ( pdevobj[num] != NULL )
 425         //info = (struct ft1000_info *)(pdevobj[num]->net->priv);
 426                 info = (struct ft1000_info *)netdev_priv(pdevobj[num]->net);
 427     else
 428     {
 429         DEBUG("ft1000_ChOpen: can not find device object %d\n", num);
 430         return -1;
 431     }
 432
 433     DEBUG("f_owner = %p number of application = %d\n", (&File->f_owner), info->appcnt );
 434
 435     // Check if maximum number of application exceeded
 436     if (info->appcnt > MAX_NUM_APP) {
 437         DEBUG("Maximum number of application exceeded\n");
 438         return -EACCES;
 439     }
 440
 441     // Search for available application info block
 442     for (i=0; i<MAX_NUM_APP; i++) {
 443         if ( (info->app_info[i].fileobject == NULL) ) {
 444             break;
 445         }
 446     }
 447
 448     // Fail due to lack of application info block
 449     if (i == MAX_NUM_APP) {
 450         DEBUG("Could not find an application info block\n");
 451         return -EACCES;
 452     }
 453
 454     info->appcnt++;
 455     info->app_info[i].fileobject = &File->f_owner;
 456     info->app_info[i].nTxMsg = 0;
 457     info->app_info[i].nRxMsg = 0;
 458     info->app_info[i].nTxMsgReject = 0;
 459     info->app_info[i].nRxMsgMiss = 0;
 460
 461     File->private_data = pdevobj[num]->net;
 462
 463         nonseekable_open(Inode, File);
 464     return 0;
 465 }
 466
 467
 468 //---------------------------------------------------------------------------
 469 // Function:    ft1000_ChPoll
 470 //
 471 // Parameters:
 472 //
 473 // Description:
 474 //
 475 // Notes:
 476 //
 477 //---------------------------------------------------------------------------
 478
 479 static unsigned int ft1000_ChPoll(struct file *file, poll_table *wait)
 480 {
 481     struct net_device *dev = file->private_data;
 482         struct ft1000_info *info;
 483     int i;
 484
 485     //DEBUG("ft1000_ChPoll called\n");
 486     if (ft1000_flarion_cnt == 0) {
 487         DEBUG("FT1000:ft1000_ChPoll called when ft1000_flarion_cnt is zero\n");
 488         return (-EBADF);
 489     }
 490
 491         info = (struct ft1000_info *) netdev_priv(dev);
 492
 493     // Search for matching file object
 494     for (i=0; i<MAX_NUM_APP; i++) {
 495         if ( info->app_info[i].fileobject == &file->f_owner) {
 496             //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id);
 497             break;
 498         }
 499     }
 500
 501     // Could not find application info block
 502     if (i == MAX_NUM_APP) {
 503         DEBUG("FT1000:ft1000_ChIoctl:Could not find application info block\n");
 504         return ( -EACCES );
 505     }
 506
 507     if (list_empty(&info->app_info[i].app_sqlist) == 0) {
 508         DEBUG("FT1000:ft1000_ChPoll:Message detected in slow queue\n");
 509         return(POLLIN | POLLRDNORM | POLLPRI);
 510     }
 511
 512     poll_wait (file, &info->app_info[i].wait_dpram_msg, wait);
 513     //DEBUG("FT1000:ft1000_ChPoll:Polling for data from DSP\n");
 514
 515     return (0);
 516 }
 517
 518 //---------------------------------------------------------------------------
 519 // Function:    ft1000_ChIoctl
 520 //
 521 // Parameters:
 522 //
 523 // Description:
 524 //
 525 // Notes:
 526 //
 527 //---------------------------------------------------------------------------
 528 static long ft1000_ChIoctl (struct file *File, unsigned int Command,
 529                            unsigned long Argument)
 530 {
 531     void __user *argp = (void __user *)Argument;
 532     struct net_device *dev;
 533         struct ft1000_info *info;
 534     struct ft1000_device *ft1000dev;
 535     int result=0;
 536     int cmd;
 537     int i;
 538     u16 tempword;
 539     unsigned long flags;
 540     struct timeval tv;
 541     IOCTL_GET_VER get_ver_data;
 542     IOCTL_GET_DSP_STAT get_stat_data;
 543     u8 ConnectionMsg[] = {0x00,0x44,0x10,0x20,0x80,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x93,0x64,
 544                           0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x0a,
 545                           0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 546                           0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x12,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 547                           0x00,0x00,0x02,0x37,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x01,0x00,0x01,0x7f,0x00,
 548                           0x00,0x01,0x00,0x00};
 549
 550     unsigned short ledStat=0;
 551     unsigned short conStat=0;
 552
 553     //DEBUG("ft1000_ChIoctl called\n");
 554
 555     if (ft1000_flarion_cnt == 0) {
 556         DEBUG("FT1000:ft1000_ChIoctl called when ft1000_flarion_cnt is zero\n");
 557         return (-EBADF);
 558     }
 559
 560     //DEBUG("FT1000:ft1000_ChIoctl:Command = 0x%x Argument = 0x%8x\n", Command, (u32)Argument);
 561
 562     dev = File->private_data;
 563         info = (struct ft1000_info *) netdev_priv(dev);
 564     ft1000dev = info->pFt1000Dev;
 565     cmd = _IOC_NR(Command);
 566     //DEBUG("FT1000:ft1000_ChIoctl:cmd = 0x%x\n", cmd);
 567
 568     // process the command
 569     switch (cmd) {
 570     case IOCTL_REGISTER_CMD:
 571             DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_REGISTER called\n");
 572             result = get_user(tempword, (__u16 __user*)argp);
 573             if (result) {
 574                 DEBUG("result = %d failed to get_user\n", result);
 575                 break;
 576             }
 577             if (tempword == DSPBCMSGID) {
 578                 // Search for matching file object
 579                 for (i=0; i<MAX_NUM_APP; i++) {
 580                     if ( info->app_info[i].fileobject == &File->f_owner) {
 581                         info->app_info[i].DspBCMsgFlag = 1;
 582                         DEBUG("FT1000:ft1000_ChIoctl:Registered for broadcast messages\n");
 583                         break;
 584                     }
 585                 }
 586             }
 587             break;
 588
 589     case IOCTL_GET_VER_CMD:
 590         DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_VER called\n");
 591
 592         get_ver_data.drv_ver = FT1000_DRV_VER;
 593
 594         if (copy_to_user(argp, &get_ver_data, sizeof(get_ver_data)) ) {
 595             DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 596             result = -EFAULT;
 597             break;
 598         }
 599
 600         DEBUG("FT1000:ft1000_ChIoctl:driver version = 0x%x\n",(unsigned int)get_ver_data.drv_ver);
 601
 602         break;
 603     case IOCTL_CONNECT:
 604         // Connect Message
 605         DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_CONNECT\n");
 606         ConnectionMsg[79] = 0xfc;
 607                            CardSendCommand(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
 608
 609         break;
 610     case IOCTL_DISCONNECT:
 611         // Disconnect Message
 612         DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_DISCONNECT\n");
 613         ConnectionMsg[79] = 0xfd;
 614                            CardSendCommand(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
 615         break;
 616     case IOCTL_GET_DSP_STAT_CMD:
 617         //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DSP_STAT called\n");
 618         memset(&get_stat_data, 0, sizeof(get_stat_data));
 619         memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ);
 620         memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ);
 621         memcpy(get_stat_data.Sku, info->Sku, SKUSZ);
 622         memcpy(get_stat_data.eui64, info->eui64, EUISZ);
 623
 624             if (info->ProgConStat != 0xFF) {
 625                 ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_LED, (PUCHAR)&ledStat, FT1000_MAG_DSP_LED_INDX);
 626                 get_stat_data.LedStat = ntohs(ledStat);
 627                 DEBUG("FT1000:ft1000_ChIoctl: LedStat = 0x%x\n", get_stat_data.LedStat);
 628                 ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_CON_STATE, (PUCHAR)&conStat, FT1000_MAG_DSP_CON_STATE_INDX);
 629                 get_stat_data.ConStat = ntohs(conStat);
 630                 DEBUG("FT1000:ft1000_ChIoctl: ConStat = 0x%x\n", get_stat_data.ConStat);
 631             }
 632             else {
 633                 get_stat_data.ConStat = 0x0f;
 634             }
 635
 636
 637         get_stat_data.nTxPkts = info->stats.tx_packets;
 638         get_stat_data.nRxPkts = info->stats.rx_packets;
 639         get_stat_data.nTxBytes = info->stats.tx_bytes;
 640         get_stat_data.nRxBytes = info->stats.rx_bytes;
 641         do_gettimeofday ( &tv );
 642         get_stat_data.ConTm = (u32)(tv.tv_sec - info->ConTm);
 643         DEBUG("Connection Time = %d\n", (int)get_stat_data.ConTm);
 644         if (copy_to_user(argp, &get_stat_data, sizeof(get_stat_data)) ) {
 645             DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 646             result = -EFAULT;
 647             break;
 648         }
 649         DEBUG("ft1000_chioctl: GET_DSP_STAT succeed\n");
 650         break;
 651     case IOCTL_SET_DPRAM_CMD:
 652         {
 653             IOCTL_DPRAM_BLK *dpram_data;
 654             //IOCTL_DPRAM_COMMAND dpram_command;
 655             USHORT qtype;
 656             USHORT msgsz;
 657                 struct pseudo_hdr *ppseudo_hdr;
 658             PUSHORT pmsg;
 659             USHORT total_len;
 660             USHORT app_index;
 661             u16 status;
 662
 663             //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_SET_DPRAM called\n");
 664
 665
 666             if (ft1000_flarion_cnt == 0) {
 667                 return (-EBADF);
 668             }
 669
 670             if (info->DrvMsgPend) {
 671                 return (-ENOTTY);
 672             }
 673
 674             if ( (info->DspAsicReset) || (info->fProvComplete == 0) ) {
 675                 return (-EACCES);
 676             }
 677
 678             info->fAppMsgPend = 1;
 679
 680             if (info->CardReady) {
 681
 682                //DEBUG("FT1000:ft1000_ChIoctl: try to SET_DPRAM \n");
 683
 684                 // Get the length field to see how many bytes to copy
 685                 result = get_user(msgsz, (__u16 __user *)argp);
 686                 msgsz = ntohs (msgsz);
 687                 //DEBUG("FT1000:ft1000_ChIoctl: length of message = %d\n", msgsz);
 688
 689                 if (msgsz > MAX_CMD_SQSIZE) {
 690                     DEBUG("FT1000:ft1000_ChIoctl: bad message length = %d\n", msgsz);
 691                     result = -EINVAL;
 692                     break;
 693                 }
 694
 695                 result = -ENOMEM;
 696                 dpram_data = kmalloc(msgsz + 2, GFP_KERNEL);
 697                 if (!dpram_data)
 698                         break;
 699
 700                 //if ( copy_from_user(&(dpram_command.dpram_blk), (PIOCTL_DPRAM_BLK)Argument, msgsz+2) ) {
 701                 if ( copy_from_user(&dpram_data, argp, msgsz+2) ) {
 702                     DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 703                     result = -EFAULT;
 704                 }
 705                 else {
 706 #if 0
 707                     // whc - for debugging only
 708                     ptr = (char *)&dpram_data;
 709                     for (i=0; i<msgsz; i++) {
 710                         DEBUG(1,"FT1000:ft1000_ChIoctl: data %d = 0x%x\n", i, *ptr++);
 711                     }
 712 #endif
 713                     // Check if this message came from a registered application
 714                     for (i=0; i<MAX_NUM_APP; i++) {
 715                         if ( info->app_info[i].fileobject == &File->f_owner) {
 716                             break;
 717                         }
 718                     }
 719                     if (i==MAX_NUM_APP) {
 720                         DEBUG("FT1000:No matching application fileobject\n");
 721                         result = -EINVAL;
 722                         kfree(dpram_data);
 723                         break;
 724                     }
 725                     app_index = i;
 726
 727                     // Check message qtype type which is the lower byte within qos_class
 728                     //qtype = ntohs(dpram_command.dpram_blk.pseudohdr.qos_class) & 0xff;
 729                     qtype = ntohs(dpram_data->pseudohdr.qos_class) & 0xff;
 730                     //DEBUG("FT1000_ft1000_ChIoctl: qtype = %d\n", qtype);
 731                     if (qtype) {
 732                     }
 733                     else {
 734                         // Put message into Slow Queue
 735                         // Only put a message into the DPRAM if msg doorbell is available
 736                         status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 737                         //DEBUG("FT1000_ft1000_ChIoctl: READ REGISTER tempword=%x\n", tempword);
 738                         if (tempword & FT1000_DB_DPRAM_TX) {
 739                             // Suspend for 2ms and try again due to DSP doorbell busy
 740                             mdelay(2);
 741                             status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 742                             if (tempword & FT1000_DB_DPRAM_TX) {
 743                                 // Suspend for 1ms and try again due to DSP doorbell busy
 744                                 mdelay(1);
 745                                 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 746                                 if (tempword & FT1000_DB_DPRAM_TX) {
 747                                     status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 748                                     if (tempword & FT1000_DB_DPRAM_TX) {
 749                                         // Suspend for 3ms and try again due to DSP doorbell busy
 750                                         mdelay(3);
 751                                         status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 752                                         if (tempword & FT1000_DB_DPRAM_TX) {
 753                                             DEBUG("FT1000:ft1000_ChIoctl:Doorbell not available\n");
 754                                             result = -ENOTTY;
 755                                                 kfree(dpram_data);
 756                                             break;
 757                                         }
 758                                     }
 759                                 }
 760                             }
 761                         }
 762
 763                         //DEBUG("FT1000_ft1000_ChIoctl: finished reading register\n");
 764
 765                         // Make sure we are within the limits of the slow queue memory limitation
 766                         if ( (msgsz < MAX_CMD_SQSIZE) && (msgsz > PSEUDOSZ) ) {
 767                             // Need to put sequence number plus new checksum for message
 768                             //pmsg = (PUSHORT)&dpram_command.dpram_blk.pseudohdr;
 769                             pmsg = (PUSHORT)&dpram_data->pseudohdr;
 770                                 ppseudo_hdr = (struct pseudo_hdr *)pmsg;
 771                             total_len = msgsz+2;
 772                             if (total_len & 0x1) {
 773                                 total_len++;
 774                             }
 775
 776                             // Insert slow queue sequence number
 777                             ppseudo_hdr->seq_num = info->squeseqnum++;
 778                             ppseudo_hdr->portsrc = info->app_info[app_index].app_id;
 779                             // Calculate new checksum
 780                             ppseudo_hdr->checksum = *pmsg++;
 781                             //DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum);
 782                             for (i=1; i<7; i++) {
 783                                 ppseudo_hdr->checksum ^= *pmsg++;
 784                                 //DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum);
 785                             }
 786                             pmsg++;
 787                                 ppseudo_hdr = (struct pseudo_hdr *)pmsg;
 788 #if 0
 789                             ptr = dpram_data;
 790                             DEBUG("FT1000:ft1000_ChIoctl: Command Send\n");
 791                             for (i=0; i<total_len; i++) {
 792                                 DEBUG("FT1000:ft1000_ChIoctl: data %d = 0x%x\n", i, *ptr++);
 793                             }
 794 #endif
 795                             //dpram_command.extra = 0;
 796
 797                             //CardSendCommand(ft1000dev,(unsigned char*)&dpram_command,total_len+2);
 798                             CardSendCommand(ft1000dev,(unsigned short*)dpram_data,total_len+2);
 799
 800
 801                             info->app_info[app_index].nTxMsg++;
 802                         }
 803                         else {
 804                             result = -EINVAL;
 805                         }
 806                     }
 807                 }
 808             }
 809             else {
 810                 DEBUG("FT1000:ft1000_ChIoctl: Card not ready take messages\n");
 811                 result = -EACCES;
 812             }
 813             kfree(dpram_data);
 814
 815         }
 816         break;
 817     case IOCTL_GET_DPRAM_CMD:
 818         {
 819                 struct dpram_blk *pdpram_blk;
 820             IOCTL_DPRAM_BLK __user *pioctl_dpram;
 821             int msglen;
 822
 823             //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DPRAM called\n");
 824
 825             if (ft1000_flarion_cnt == 0) {
 826                 return (-EBADF);
 827             }
 828
 829             // Search for matching file object
 830             for (i=0; i<MAX_NUM_APP; i++) {
 831                 if ( info->app_info[i].fileobject == &File->f_owner) {
 832                     //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id);
 833                     break;
 834                 }
 835             }
 836
 837             // Could not find application info block
 838             if (i == MAX_NUM_APP) {
 839                 DEBUG("FT1000:ft1000_ChIoctl:Could not find application info block\n");
 840                 result = -EBADF;
 841                 break;
 842             }
 843
 844             result = 0;
 845             pioctl_dpram = argp;
 846             if (list_empty(&info->app_info[i].app_sqlist) == 0) {
 847                 //DEBUG("FT1000:ft1000_ChIoctl:Message detected in slow queue\n");
 848                 spin_lock_irqsave(&free_buff_lock, flags);
 849                 pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, struct dpram_blk, list);
 850                 list_del(&pdpram_blk->list);
 851                 info->app_info[i].NumOfMsg--;
 852                 //DEBUG("FT1000:ft1000_ChIoctl:NumOfMsg for app %d = %d\n", i, info->app_info[i].NumOfMsg);
 853                 spin_unlock_irqrestore(&free_buff_lock, flags);
 854                 msglen = ntohs(*(u16 *)pdpram_blk->pbuffer) + PSEUDOSZ;
 855                 result = get_user(msglen, &pioctl_dpram->total_len);
 856                 if (result)
 857                         break;
 858                 msglen = htons(msglen);
 859                 //DEBUG("FT1000:ft1000_ChIoctl:msg length = %x\n", msglen);
 860                 if(copy_to_user (&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen))
 861                                 {
 862                                         DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 863                         result = -EFAULT;
 864                         break;
 865                                 }
 866
 867                 ft1000_free_buffer(pdpram_blk, &freercvpool);
 868                 result = msglen;
 869             }
 870             //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DPRAM no message\n");
 871         }
 872         break;
 873
 874     default:
 875         DEBUG("FT1000:ft1000_ChIoctl:unknown command: 0x%x\n", Command);
 876         result = -ENOTTY;
 877         break;
 878     }
 879     info->fAppMsgPend = 0;
 880     return result;
 881 }
 882
 883 //---------------------------------------------------------------------------
 884 // Function:    ft1000_ChRelease
 885 //
 886 // Parameters:
 887 //
 888 // Description:
 889 //
 890 // Notes:
 891 //
 892 //---------------------------------------------------------------------------
 893 static int ft1000_ChRelease (struct inode *Inode, struct file *File)
 894 {
 895         struct ft1000_info *info;
 896     struct net_device *dev;
 897     int i;
 898         struct dpram_blk *pdpram_blk;
 899
 900     DEBUG("ft1000_ChRelease called\n");
 901
 902     dev = File->private_data;
 903         info = (struct ft1000_info *) netdev_priv(dev);
 904
 905     if (ft1000_flarion_cnt == 0) {
 906         info->appcnt--;
 907         return (-EBADF);
 908     }
 909
 910     // Search for matching file object
 911     for (i=0; i<MAX_NUM_APP; i++) {
 912         if ( info->app_info[i].fileobject == &File->f_owner) {
 913             //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id);
 914             break;
 915         }
 916     }
 917
 918     if (i==MAX_NUM_APP)
 919             return 0;
 920
 921     while (list_empty(&info->app_info[i].app_sqlist) == 0) {
 922         DEBUG("Remove and free memory queue up on slow queue\n");
 923         pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, struct dpram_blk, list);
 924         list_del(&pdpram_blk->list);
 925         ft1000_free_buffer(pdpram_blk, &freercvpool);
 926     }
 927
 928     // initialize application information
 929     info->appcnt--;
 930     DEBUG("ft1000_chdev:%s:appcnt = %d\n", __FUNCTION__, info->appcnt);
 931     info->app_info[i].fileobject = NULL;
 932
 933     return 0;
 934 }
 935