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 void ft1000_DestroyDevice(struct net_device *dev);
  45 u16 ft1000_read_dpram16(struct ft1000_device *ft1000dev, USHORT indx, PUCHAR buffer, u8 highlow);
  46 u16 ft1000_read_register(struct ft1000_device *ft1000dev, short* Data, u16 nRegIndx);
  47
  48 extern inline u16 ft1000_asic_read (struct net_device *dev, u16 offset);
  49 extern inline void ft1000_asic_write (struct net_device *dev, u16 offset, u16 value);
  50 extern void CardSendCommand(struct ft1000_device *ft1000dev, unsigned short *ptempbuffer, int size);
  51
  52 static int ft1000_ChOpen (struct inode *Inode, struct file *File);
  53 static unsigned int ft1000_ChPoll(struct file *file, poll_table *wait);
  54 static int ft1000_ChIoctl(struct file *File, unsigned int Command,
  55                            unsigned long Argument);
  56 static int ft1000_ChRelease (struct inode *Inode, struct file *File);
  57
  58 static int ft1000_flarion_cnt = 0;
  59
  60 //need to looking usage of ft1000Handle
  61
  62
  63
  64 // Global pointer to device object
  65 static struct ft1000_device *pdevobj[MAX_NUM_CARDS + 2];
  66 //static devfs_handle_t ft1000Handle[MAX_NUM_CARDS];
  67
  68 // List to free receive command buffer pool
  69 struct list_head freercvpool;
  70
  71 // lock to arbitrate free buffer list for receive command data
  72 spinlock_t free_buff_lock;
  73
  74 int numofmsgbuf = 0;
  75
  76 // Global variable to indicate that all provisioning data is sent to DSP
  77 //BOOLEAN fProvComplete;
  78
  79 //
  80 // Table of entry-point routines for char device
  81 //
  82 static struct file_operations ft1000fops =
  83 {
  84         .unlocked_ioctl = ft1000_ChIoctl,
  85         .poll           = ft1000_ChPoll,
  86         .open           = ft1000_ChOpen,
  87         .release        = ft1000_ChRelease,
  88         .llseek         = no_llseek,
  89 };
  90
  91
  92
  93
  94 //---------------------------------------------------------------------------
  95 // Function:    exec_mknod
  96 //
  97 // Parameters:
  98 //
  99 // Returns:
 100 //
 101 // Description:
 102 //
 103 // Notes:
 104 //
 105 //---------------------------------------------------------------------------
 106 static int exec_mknod (void *pdata)
 107 {
 108     PFT1000_INFO info;
 109     char mjnum[4];
 110     char minornum[4];
 111     char temp[32];
 112     int retcode;
 113 //    int i;                                    //aelias [-] reason : unused variable
 114     char *envp[] = { "HOME=/", "PATH=/usr/bin:/bin", NULL };
 115     char *argv[]={"-m 666",temp,"c",mjnum,minornum,NULL};
 116
 117     info = pdata;
 118     DEBUG("ft1000_chdev:exec_mknod is called with major number = %d\n", info->DeviceMajor);
 119     sprintf(temp, "%s%s", "/dev/", info->DeviceName) ;
 120     sprintf(mjnum, "%d", info->DeviceMajor);
 121     sprintf(minornum, "%d", info->CardNumber);
 122
 123     //char *argv[]={"mknod","-m 666",temp,"c",mjnum,minornum,NULL};
 124 //    char *argv[]={"-m 666",temp,"c",mjnum,minornum,NULL};
 125
 126     //for (i=0; i<7;i++)
 127     //    DEBUG("argv[%d]=%s\n", i, argv[i]);
 128
 129
 130     retcode = call_usermodehelper ("/bin/mknod", argv, envp, 1);
 131     if (retcode) {
 132         DEBUG("ft1000_chdev:exec_mknod failed to make the node: retcode = %d\n", retcode);
 133     }
 134
 135
 136
 137     return retcode;
 138
 139 }
 140
 141 //---------------------------------------------------------------------------
 142 // Function:    rm_mknod
 143 //
 144 // Description: This module removes the FT1000 device file
 145 //
 146 //---------------------------------------------------------------------------
 147 static int rm_mknod (void *pdata)
 148 {
 149
 150     PFT1000_INFO info;
 151     //char *argv[4]={"rm", "-f", "/dev/FT1000", NULL};
 152     int retcode;
 153     char temp[32];
 154     char *argv[]={"rm", "-f", temp, NULL};
 155
 156     info = (PFT1000_INFO)pdata;
 157     DEBUG("ft1000_chdev:rm_mknod is called for device %s\n", info->DeviceName);
 158     sprintf(temp, "%s%s", "/dev/", info->DeviceName) ;
 159
 160 //    char *argv[]={"rm", "-f", temp, NULL};
 161
 162     retcode = call_usermodehelper ("/bin/rm", argv, NULL, 1);
 163     if (retcode) {
 164         DEBUG("ft1000_chdev:rm_mknod failed to remove the node: retcode = %d\n", retcode);
 165     }
 166     else
 167         DEBUG("ft1000_chdev:rm_mknod done!\n");
 168
 169
 170     return retcode;
 171
 172 }
 173 //---------------------------------------------------------------------------
 174 // Function:    ft1000_get_buffer
 175 //
 176 // Parameters:
 177 //
 178 // Returns:
 179 //
 180 // Description:
 181 //
 182 // Notes:
 183 //
 184 //---------------------------------------------------------------------------
 185 PDPRAM_BLK ft1000_get_buffer (struct list_head *bufflist)
 186 {
 187     unsigned long flags;
 188     PDPRAM_BLK ptr;
 189
 190     spin_lock_irqsave(&free_buff_lock, flags);
 191     // Check if buffer is available
 192     if ( list_empty(bufflist) ) {
 193         DEBUG("ft1000_get_buffer:  No more buffer - %d\n", numofmsgbuf);
 194         ptr = NULL;
 195     }
 196     else {
 197         numofmsgbuf--;
 198         ptr = list_entry(bufflist->next, DPRAM_BLK, list);
 199         list_del(&ptr->list);
 200         //DEBUG("ft1000_get_buffer: number of free msg buffers = %d\n", numofmsgbuf);
 201     }
 202     spin_unlock_irqrestore(&free_buff_lock, flags);
 203
 204     return ptr;
 205 }
 206
 207
 208
 209
 210 //---------------------------------------------------------------------------
 211 // Function:    ft1000_free_buffer
 212 //
 213 // Parameters:
 214 //
 215 // Returns:
 216 //
 217 // Description:
 218 //
 219 // Notes:
 220 //
 221 //---------------------------------------------------------------------------
 222 void ft1000_free_buffer (PDPRAM_BLK pdpram_blk, struct list_head *plist)
 223 {
 224     unsigned long flags;
 225
 226     spin_lock_irqsave(&free_buff_lock, flags);
 227     // Put memory back to list
 228     list_add_tail(&pdpram_blk->list, plist);
 229     numofmsgbuf++;
 230     //DEBUG("ft1000_free_buffer: number of free msg buffers = %d\n", numofmsgbuf);
 231     spin_unlock_irqrestore(&free_buff_lock, flags);
 232 }
 233
 234 //---------------------------------------------------------------------------
 235 // Function:    ft1000_CreateDevice
 236 //
 237 // Parameters:  dev - pointer to adapter object
 238 //
 239 // Returns:     0 if successful
 240 //
 241 // Description: Creates a private char device.
 242 //
 243 // Notes:       Only called by init_module().
 244 //
 245 //---------------------------------------------------------------------------
 246 int ft1000_CreateDevice(struct ft1000_device *dev)
 247 {
 248     PFT1000_INFO info = netdev_priv(dev->net);
 249     int result;
 250     int i;
 251     pid_t pid;
 252
 253     // make a new device name
 254     sprintf(info->DeviceName, "%s%d", "FT100", info->CardNumber);
 255
 256     // Delete any existing FT1000 node
 257     pid = kernel_thread (rm_mknod,(void *)info, 0);
 258     msleep(1000);
 259
 260     DEBUG("ft1000_CreateDevice: number of instance = %d\n", ft1000_flarion_cnt);
 261     DEBUG("DeviceCreated = %x\n", info->DeviceCreated);
 262
 263     //save the device info to global array
 264     pdevobj[info->CardNumber] = dev;
 265
 266     DEBUG("ft1000_CreateDevice: ******SAVED pdevobj[%d]=%x\n", info->CardNumber, (unsigned int)pdevobj[info->CardNumber]);      //aelias [+] reason:up
 267
 268     if (info->DeviceCreated)
 269     {
 270         DEBUG("ft1000_CreateDevice: \"%s\" already registered\n", info->DeviceName);
 271         return -EIO;
 272     }
 273
 274
 275     // register the device
 276     DEBUG("ft1000_CreateDevice: \"%s\" device registration\n", info->DeviceName);
 277     info->DeviceMajor = 0;
 278
 279     result = register_chrdev(info->DeviceMajor, info->DeviceName, &ft1000fops);
 280     if (result < 0)
 281     {
 282         DEBUG("ft1000_CreateDevice: unable to get major %d\n", info->DeviceMajor);
 283         return result;
 284     }
 285
 286     DEBUG("ft1000_CreateDevice: registered char device \"%s\"\n", info->DeviceName);
 287
 288     // save a dynamic device major number
 289     if (info->DeviceMajor == 0)
 290     {
 291         info->DeviceMajor = result;
 292         DEBUG("ft1000_PcdCreateDevice: device major = %d\n", info->DeviceMajor);
 293     }
 294
 295     // Create a thread to call user mode app to mknod
 296     pid = kernel_thread (exec_mknod, (void *)info, 0);
 297
 298     // initialize application information
 299     info->appcnt = 0;
 300
 301 //    if (ft1000_flarion_cnt == 0) {
 302 //
 303 //        DEBUG("Initialize free_buff_lock and freercvpool\n");
 304 //        spin_lock_init(&free_buff_lock);
 305 //
 306 //        // initialize a list of buffers to be use for queuing up receive command data
 307 //        INIT_LIST_HEAD (&freercvpool);
 308 //
 309 //        // create list of free buffers
 310 //        for (i=0; i<NUM_OF_FREE_BUFFERS; i++) {
 311 //            // Get memory for DPRAM_DATA link list
 312 //            pdpram_blk = kmalloc ( sizeof(DPRAM_BLK), GFP_KERNEL );
 313 //            // Get a block of memory to store command data
 314 //            pdpram_blk->pbuffer = kmalloc ( MAX_CMD_SQSIZE, GFP_KERNEL );
 315 //            // link provisioning data
 316 //            list_add_tail (&pdpram_blk->list, &freercvpool);
 317 //        }
 318 //        numofmsgbuf = NUM_OF_FREE_BUFFERS;
 319 //    }
 320
 321
 322     // initialize application information
 323     info->appcnt = 0;
 324     for (i=0; i<MAX_NUM_APP; i++) {
 325         info->app_info[i].nTxMsg = 0;
 326         info->app_info[i].nRxMsg = 0;
 327         info->app_info[i].nTxMsgReject = 0;
 328         info->app_info[i].nRxMsgMiss = 0;
 329         info->app_info[i].fileobject = 0;
 330         info->app_info[i].app_id = i+1;
 331         info->app_info[i].DspBCMsgFlag = 0;
 332         info->app_info[i].NumOfMsg = 0;
 333         init_waitqueue_head(&info->app_info[i].wait_dpram_msg);
 334         INIT_LIST_HEAD (&info->app_info[i].app_sqlist);
 335     }
 336
 337
 338
 339
 340 //    ft1000Handle[info->CardNumber] = devfs_register(NULL, info->DeviceName, DEVFS_FL_AUTO_DEVNUM, 0, 0,
 341 //                                  S_IFCHR | S_IRUGO | S_IWUGO, &ft1000fops, NULL);
 342
 343
 344     info->DeviceCreated = TRUE;
 345     ft1000_flarion_cnt++;
 346
 347     return result;
 348 }
 349
 350 //---------------------------------------------------------------------------
 351 // Function:    ft1000_DestroyDeviceDEBUG
 352 //
 353 // Parameters:  dev - pointer to adapter object
 354 //
 355 // Description: Destroys a private char device.
 356 //
 357 // Notes:       Only called by cleanup_module().
 358 //
 359 //---------------------------------------------------------------------------
 360 void ft1000_DestroyDevice(struct net_device *dev)
 361 {
 362     PFT1000_INFO info = netdev_priv(dev);
 363     int result = 0;
 364     pid_t pid;
 365                 int i;
 366     PDPRAM_BLK pdpram_blk;
 367     DPRAM_BLK *ptr;
 368
 369     DEBUG("ft1000_chdev:ft1000_DestroyDevice called\n");
 370
 371
 372
 373     if (info->DeviceCreated)
 374         {
 375         ft1000_flarion_cnt--;
 376                 unregister_chrdev(info->DeviceMajor, info->DeviceName);
 377                 DEBUG("ft1000_DestroyDevice: unregistered device \"%s\", result = %d\n",
 378                                            info->DeviceName, result);
 379
 380        pid = kernel_thread (rm_mknod, (void *)info, 0);
 381
 382         // Make sure we free any memory reserve for slow Queue
 383         for (i=0; i<MAX_NUM_APP; i++) {
 384             while (list_empty(&info->app_info[i].app_sqlist) == 0) {
 385                 pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, DPRAM_BLK, list);
 386                 list_del(&pdpram_blk->list);
 387                 ft1000_free_buffer(pdpram_blk, &freercvpool);
 388
 389             }
 390             wake_up_interruptible(&info->app_info[i].wait_dpram_msg);
 391         }
 392
 393         // Remove buffer allocated for receive command data
 394         if (ft1000_flarion_cnt == 0) {
 395             while (list_empty(&freercvpool) == 0) {
 396                 ptr = list_entry(freercvpool.next, DPRAM_BLK, list);
 397                 list_del(&ptr->list);
 398                 kfree(ptr->pbuffer);
 399                 kfree(ptr);
 400             }
 401         }
 402
 403 //        devfs_unregister(ft1000Handle[info->CardNumber]);
 404
 405                 info->DeviceCreated = FALSE;
 406
 407                 pdevobj[info->CardNumber] = NULL;
 408         }
 409
 410
 411 }
 412
 413 //---------------------------------------------------------------------------
 414 // Function:    ft1000_ChOpen
 415 //
 416 // Parameters:
 417 //
 418 // Description:
 419 //
 420 // Notes:
 421 //
 422 //---------------------------------------------------------------------------
 423 static int ft1000_ChOpen (struct inode *Inode, struct file *File)
 424 {
 425     PFT1000_INFO info;
 426     int i,num;
 427
 428     DEBUG("ft1000_ChOpen called\n");
 429     num = (MINOR(Inode->i_rdev) & 0xf);
 430     DEBUG("ft1000_ChOpen: minor number=%d\n", num);
 431
 432     for (i=0; i<5; i++)
 433         DEBUG("pdevobj[%d]=%x\n", i, (unsigned int)pdevobj[i]); //aelias [+] reason: down
 434
 435     if ( pdevobj[num] != NULL )
 436         //info = (PFT1000_INFO)(pdevobj[num]->net->priv);
 437         info = (FT1000_INFO *) netdev_priv (pdevobj[num]->net);
 438     else
 439     {
 440         DEBUG("ft1000_ChOpen: can not find device object %d\n", num);
 441         return -1;
 442     }
 443
 444     DEBUG("f_owner = 0x%8x number of application = %d\n", (u32)(&File->f_owner), info->appcnt );
 445
 446     // Check if maximum number of application exceeded
 447     if (info->appcnt > MAX_NUM_APP) {
 448         DEBUG("Maximum number of application exceeded\n");
 449         return -EACCES;
 450     }
 451
 452     // Search for available application info block
 453     for (i=0; i<MAX_NUM_APP; i++) {
 454         if ( (info->app_info[i].fileobject == 0) ) {
 455             break;
 456         }
 457     }
 458
 459     // Fail due to lack of application info block
 460     if (i == MAX_NUM_APP) {
 461         DEBUG("Could not find an application info block\n");
 462         return -EACCES;
 463     }
 464
 465     info->appcnt++;
 466     info->app_info[i].fileobject = (u32)(&File->f_owner);
 467     info->app_info[i].nTxMsg = 0;
 468     info->app_info[i].nRxMsg = 0;
 469     info->app_info[i].nTxMsgReject = 0;
 470     info->app_info[i].nRxMsgMiss = 0;
 471
 472     File->private_data = pdevobj[num]->net;
 473
 474         nonseekable_open(Inode, File);
 475     return 0;
 476 }
 477
 478
 479 //---------------------------------------------------------------------------
 480 // Function:    ft1000_ChPoll
 481 //
 482 // Parameters:
 483 //
 484 // Description:
 485 //
 486 // Notes:
 487 //
 488 //---------------------------------------------------------------------------
 489
 490 static unsigned int ft1000_ChPoll(struct file *file, poll_table *wait)
 491 {
 492     struct net_device *dev = file->private_data;
 493     PFT1000_INFO info;
 494     int i;
 495
 496     //DEBUG("ft1000_ChPoll called\n");
 497     if (ft1000_flarion_cnt == 0) {
 498         DEBUG("FT1000:ft1000_ChPoll called when ft1000_flarion_cnt is zero\n");
 499         return (-EBADF);
 500     }
 501
 502         info = (FT1000_INFO *) netdev_priv (dev);
 503
 504     // Search for matching file object
 505     for (i=0; i<MAX_NUM_APP; i++) {
 506         if ( info->app_info[i].fileobject == (u32)(&file->f_owner) ) {
 507             //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id);
 508             break;
 509         }
 510     }
 511
 512     // Could not find application info block
 513     if (i == MAX_NUM_APP) {
 514         DEBUG("FT1000:ft1000_ChIoctl:Could not find application info block\n");
 515         return ( -EACCES );
 516     }
 517
 518     if (list_empty(&info->app_info[i].app_sqlist) == 0) {
 519         DEBUG("FT1000:ft1000_ChPoll:Message detected in slow queue\n");
 520         return(POLLIN | POLLRDNORM | POLLPRI);
 521     }
 522
 523     poll_wait (file, &info->app_info[i].wait_dpram_msg, wait);
 524     //DEBUG("FT1000:ft1000_ChPoll:Polling for data from DSP\n");
 525
 526     return (0);
 527 }
 528
 529 //---------------------------------------------------------------------------
 530 // Function:    ft1000_ChIoctl
 531 //
 532 // Parameters:
 533 //
 534 // Description:
 535 //
 536 // Notes:
 537 //
 538 //---------------------------------------------------------------------------
 539 static int ft1000_ChIoctl (struct file *File, unsigned int Command,
 540                            unsigned long Argument)
 541 {
 542     struct net_device *dev;
 543     PFT1000_INFO info;
 544     struct ft1000_device *ft1000dev;
 545     int result=0;
 546     int cmd;
 547     int i;
 548     u16 tempword;
 549     unsigned long flags;
 550     struct timeval tv;
 551     IOCTL_GET_VER get_ver_data;
 552     IOCTL_GET_DSP_STAT get_stat_data;
 553     u8 ConnectionMsg[] = {0x00,0x44,0x10,0x20,0x80,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x93,0x64,
 554                           0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x0a,
 555                           0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 556                           0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x12,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 557                           0x00,0x00,0x02,0x37,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x01,0x00,0x01,0x7f,0x00,
 558                           0x00,0x01,0x00,0x00};
 559
 560     unsigned short ledStat=0;
 561     unsigned short conStat=0;
 562
 563     //DEBUG("ft1000_ChIoctl called\n");
 564
 565     if (ft1000_flarion_cnt == 0) {
 566         DEBUG("FT1000:ft1000_ChIoctl called when ft1000_flarion_cnt is zero\n");
 567         return (-EBADF);
 568     }
 569
 570     //DEBUG("FT1000:ft1000_ChIoctl:Command = 0x%x Argument = 0x%8x\n", Command, (u32)Argument);
 571
 572     dev = File->private_data;
 573         info = (FT1000_INFO *) netdev_priv (dev);
 574     ft1000dev = info->pFt1000Dev;
 575     cmd = _IOC_NR(Command);
 576     //DEBUG("FT1000:ft1000_ChIoctl:cmd = 0x%x\n", cmd);
 577
 578     // process the command
 579     switch (cmd) {
 580     case IOCTL_REGISTER_CMD:
 581             DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_REGISTER called\n");
 582             result = get_user(tempword, (unsigned short *)Argument);
 583             if (result) {
 584                 DEBUG("result = %d failed to get_user\n", result);
 585                 break;
 586             }
 587             if (tempword == DSPBCMSGID) {
 588                 // Search for matching file object
 589                 for (i=0; i<MAX_NUM_APP; i++) {
 590                     if ( info->app_info[i].fileobject == (u32)(&File->f_owner) ) {
 591                         info->app_info[i].DspBCMsgFlag = 1;
 592                         DEBUG("FT1000:ft1000_ChIoctl:Registered for broadcast messages\n");
 593                         break;
 594                     }
 595                 }
 596             }
 597             break;
 598
 599     case IOCTL_GET_VER_CMD:
 600         DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_VER called\n");
 601
 602         get_ver_data.drv_ver = FT1000_DRV_VER;
 603
 604         if (copy_to_user((PIOCTL_GET_VER)Argument, &get_ver_data, sizeof(get_ver_data)) ) {
 605             DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 606             result = -EFAULT;
 607             break;
 608         }
 609
 610         DEBUG("FT1000:ft1000_ChIoctl:driver version = 0x%x\n",(unsigned int)get_ver_data.drv_ver);
 611
 612         break;
 613     case IOCTL_CONNECT:
 614         // Connect Message
 615         DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_CONNECT\n");
 616         ConnectionMsg[79] = 0xfc;
 617                            CardSendCommand(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
 618
 619         break;
 620     case IOCTL_DISCONNECT:
 621         // Disconnect Message
 622         DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_DISCONNECT\n");
 623         ConnectionMsg[79] = 0xfd;
 624                            CardSendCommand(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
 625         break;
 626     case IOCTL_GET_DSP_STAT_CMD:
 627         //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DSP_STAT called\n");
 628
 629         memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ);
 630         memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ);
 631         memcpy(get_stat_data.Sku, info->Sku, SKUSZ);
 632         memcpy(get_stat_data.eui64, info->eui64, EUISZ);
 633
 634             if (info->ProgConStat != 0xFF) {
 635                 ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_LED, (PUCHAR)&ledStat, FT1000_MAG_DSP_LED_INDX);
 636                 get_stat_data.LedStat = ntohs(ledStat);
 637                 DEBUG("FT1000:ft1000_ChIoctl: LedStat = 0x%x\n", get_stat_data.LedStat);
 638                 ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_CON_STATE, (PUCHAR)&conStat, FT1000_MAG_DSP_CON_STATE_INDX);
 639                 get_stat_data.ConStat = ntohs(conStat);
 640                 DEBUG("FT1000:ft1000_ChIoctl: ConStat = 0x%x\n", get_stat_data.ConStat);
 641             }
 642             else {
 643                 get_stat_data.ConStat = 0x0f;
 644             }
 645
 646
 647         get_stat_data.nTxPkts = info->stats.tx_packets;
 648         get_stat_data.nRxPkts = info->stats.rx_packets;
 649         get_stat_data.nTxBytes = info->stats.tx_bytes;
 650         get_stat_data.nRxBytes = info->stats.rx_bytes;
 651         do_gettimeofday ( &tv );
 652         get_stat_data.ConTm = (u32)(tv.tv_sec - info->ConTm);
 653         DEBUG("Connection Time = %d\n", (int)get_stat_data.ConTm);
 654         if (copy_to_user((PIOCTL_GET_DSP_STAT)Argument, &get_stat_data, sizeof(get_stat_data)) ) {
 655             DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 656             result = -EFAULT;
 657             break;
 658         }
 659         DEBUG("ft1000_chioctl: GET_DSP_STAT succeed\n");
 660         break;
 661     case IOCTL_SET_DPRAM_CMD:
 662         {
 663             IOCTL_DPRAM_BLK dpram_data;
 664             //IOCTL_DPRAM_COMMAND dpram_command;
 665             USHORT qtype;
 666             USHORT msgsz;
 667             PPSEUDO_HDR ppseudo_hdr;
 668             PUSHORT pmsg;
 669             USHORT total_len;
 670             USHORT app_index;
 671             u16 status;
 672
 673             //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_SET_DPRAM called\n");
 674
 675
 676             if (ft1000_flarion_cnt == 0) {
 677                 return (-EBADF);
 678             }
 679
 680             if (info->DrvMsgPend) {
 681                 return (-ENOTTY);
 682             }
 683
 684             if ( (info->DspAsicReset) || (info->fProvComplete == 0) ) {
 685                 return (-EACCES);
 686             }
 687
 688             info->fAppMsgPend = 1;
 689
 690             if (info->CardReady) {
 691
 692                //DEBUG("FT1000:ft1000_ChIoctl: try to SET_DPRAM \n");
 693
 694                 // Get the length field to see how many bytes to copy
 695                 result = get_user(msgsz, (unsigned short *)Argument);
 696                 msgsz = ntohs (msgsz);
 697                 //DEBUG("FT1000:ft1000_ChIoctl: length of message = %d\n", msgsz);
 698
 699                 if (msgsz > MAX_CMD_SQSIZE) {
 700                     DEBUG("FT1000:ft1000_ChIoctl: bad message length = %d\n", msgsz);
 701                     result = -EINVAL;
 702                     break;
 703                 }
 704
 705                 //if ( copy_from_user(&(dpram_command.dpram_blk), (PIOCTL_DPRAM_BLK)Argument, msgsz+2) ) {
 706                 if ( copy_from_user(&dpram_data, (PIOCTL_DPRAM_BLK)Argument, msgsz+2) ) {
 707                     DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 708                     result = -EFAULT;
 709                 }
 710                 else {
 711 #if 0
 712                     // whc - for debugging only
 713                     ptr = (char *)&dpram_data;
 714                     for (i=0; i<msgsz; i++) {
 715                         DEBUG(1,"FT1000:ft1000_ChIoctl: data %d = 0x%x\n", i, *ptr++);
 716                     }
 717 #endif
 718                     // Check if this message came from a registered application
 719                     for (i=0; i<MAX_NUM_APP; i++) {
 720                         if ( info->app_info[i].fileobject == (u32)(&File->f_owner) ) {
 721                             break;
 722                         }
 723                     }
 724                     if (i==MAX_NUM_APP) {
 725                         DEBUG("FT1000:No matching application fileobject\n");
 726                         result = -EINVAL;
 727                         break;
 728                     }
 729                     app_index = i;
 730
 731                     // Check message qtype type which is the lower byte within qos_class
 732                     //qtype = ntohs(dpram_command.dpram_blk.pseudohdr.qos_class) & 0xff;
 733                     qtype = ntohs(dpram_data.pseudohdr.qos_class) & 0xff;
 734                     //DEBUG("FT1000_ft1000_ChIoctl: qtype = %d\n", qtype);
 735                     if (qtype) {
 736                     }
 737                     else {
 738                         // Put message into Slow Queue
 739                         // Only put a message into the DPRAM if msg doorbell is available
 740                         status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 741                         //DEBUG("FT1000_ft1000_ChIoctl: READ REGISTER tempword=%x\n", tempword);
 742                         if (tempword & FT1000_DB_DPRAM_TX) {
 743                             // Suspend for 2ms and try again due to DSP doorbell busy
 744                             mdelay(2);
 745                             status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 746                             if (tempword & FT1000_DB_DPRAM_TX) {
 747                                 // Suspend for 1ms and try again due to DSP doorbell busy
 748                                 mdelay(1);
 749                                 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 750                                 if (tempword & FT1000_DB_DPRAM_TX) {
 751                                     status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 752                                     if (tempword & FT1000_DB_DPRAM_TX) {
 753                                         // Suspend for 3ms and try again due to DSP doorbell busy
 754                                         mdelay(3);
 755                                         status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
 756                                         if (tempword & FT1000_DB_DPRAM_TX) {
 757                                             DEBUG("FT1000:ft1000_ChIoctl:Doorbell not available\n");
 758                                             result = -ENOTTY;
 759                                             break;
 760                                         }
 761                                     }
 762                                 }
 763                             }
 764                         }
 765
 766                         //DEBUG("FT1000_ft1000_ChIoctl: finished reading register\n");
 767
 768                         // Make sure we are within the limits of the slow queue memory limitation
 769                         if ( (msgsz < MAX_CMD_SQSIZE) && (msgsz > PSEUDOSZ) ) {
 770                             // Need to put sequence number plus new checksum for message
 771                             //pmsg = (PUSHORT)&dpram_command.dpram_blk.pseudohdr;
 772                             pmsg = (PUSHORT)&dpram_data.pseudohdr;
 773                             ppseudo_hdr = (PPSEUDO_HDR)pmsg;
 774                             total_len = msgsz+2;
 775                             if (total_len & 0x1) {
 776                                 total_len++;
 777                             }
 778
 779                             // Insert slow queue sequence number
 780                             ppseudo_hdr->seq_num = info->squeseqnum++;
 781                             ppseudo_hdr->portsrc = info->app_info[app_index].app_id;
 782                             // Calculate new checksum
 783                             ppseudo_hdr->checksum = *pmsg++;
 784                             //DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum);
 785                             for (i=1; i<7; i++) {
 786                                 ppseudo_hdr->checksum ^= *pmsg++;
 787                                 //DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum);
 788                             }
 789                             pmsg++;
 790                             ppseudo_hdr = (PPSEUDO_HDR)pmsg;
 791 #if 0
 792                             ptr = (char *)&dpram_data;
 793                             DEBUG("FT1000:ft1000_ChIoctl: Command Send\n");
 794                             for (i=0; i<total_len; i++) {
 795                                 DEBUG("FT1000:ft1000_ChIoctl: data %d = 0x%x\n", i, *ptr++);
 796                             }
 797 #endif
 798                             //dpram_command.extra = 0;
 799
 800                             //CardSendCommand(ft1000dev,(unsigned char*)&dpram_command,total_len+2);
 801                             CardSendCommand(ft1000dev,(unsigned short*)&dpram_data,total_len+2);
 802
 803
 804                             info->app_info[app_index].nTxMsg++;
 805                             break;
 806                         }
 807                         else {
 808                             result = -EINVAL;
 809                             break;
 810                         }
 811                     }
 812                 }
 813             }
 814             else {
 815                 DEBUG("FT1000:ft1000_ChIoctl: Card not ready take messages\n");
 816                 result = -EACCES;
 817             }
 818
 819         }
 820         break;
 821     case IOCTL_GET_DPRAM_CMD:
 822         {
 823             PDPRAM_BLK pdpram_blk;
 824             PIOCTL_DPRAM_BLK pioctl_dpram;
 825             int msglen;
 826
 827             //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DPRAM called\n");
 828
 829             if (ft1000_flarion_cnt == 0) {
 830                 return (-EBADF);
 831             }
 832
 833             // Search for matching file object
 834             for (i=0; i<MAX_NUM_APP; i++) {
 835                 if ( info->app_info[i].fileobject == (u32)(&File->f_owner) ) {
 836                     //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id);
 837                     break;
 838                 }
 839             }
 840
 841             // Could not find application info block
 842             if (i == MAX_NUM_APP) {
 843                 DEBUG("FT1000:ft1000_ChIoctl:Could not find application info block\n");
 844                 result = -EBADF;
 845                 break;
 846             }
 847
 848             result = 0;
 849             pioctl_dpram = (PIOCTL_DPRAM_BLK)Argument;
 850             if (list_empty(&info->app_info[i].app_sqlist) == 0) {
 851                 //DEBUG("FT1000:ft1000_ChIoctl:Message detected in slow queue\n");
 852                 spin_lock_irqsave(&free_buff_lock, flags);
 853                 pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, DPRAM_BLK, list);
 854                 list_del(&pdpram_blk->list);
 855                 info->app_info[i].NumOfMsg--;
 856                 //DEBUG("FT1000:ft1000_ChIoctl:NumOfMsg for app %d = %d\n", i, info->app_info[i].NumOfMsg);
 857                 spin_unlock_irqrestore(&free_buff_lock, flags);
 858                 msglen = ntohs(*(u16 *)pdpram_blk->pbuffer) + PSEUDOSZ;
 859                 pioctl_dpram->total_len = htons(msglen);
 860                 //DEBUG("FT1000:ft1000_ChIoctl:msg length = %x\n", msglen);
 861                 if(copy_to_user (&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen))
 862                                 {
 863                                         DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
 864                         result = -EFAULT;
 865                         break;
 866                                 }
 867
 868                 ft1000_free_buffer(pdpram_blk, &freercvpool);
 869                 result = msglen;
 870             }
 871             //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DPRAM no message\n");
 872         }
 873         break;
 874
 875     default:
 876         DEBUG("FT1000:ft1000_ChIoctl:unknown command: 0x%x\n", Command);
 877         result = -ENOTTY;
 878         break;
 879     }
 880     info->fAppMsgPend = 0;
 881     return result;
 882 }
 883
 884 //---------------------------------------------------------------------------
 885 // Function:    ft1000_ChRelease
 886 //
 887 // Parameters:
 888 //
 889 // Description:
 890 //
 891 // Notes:
 892 //
 893 //---------------------------------------------------------------------------
 894 static int ft1000_ChRelease (struct inode *Inode, struct file *File)
 895 {
 896     PFT1000_INFO info;
 897     struct net_device *dev;
 898     int i;
 899     PDPRAM_BLK pdpram_blk;
 900
 901     DEBUG("ft1000_ChRelease called\n");
 902
 903     dev = File->private_data;
 904         info = (FT1000_INFO *) netdev_priv (dev);
 905
 906     if (ft1000_flarion_cnt == 0) {
 907         info->appcnt--;
 908         return (-EBADF);
 909     }
 910
 911     // Search for matching file object
 912     for (i=0; i<MAX_NUM_APP; i++) {
 913         if ( info->app_info[i].fileobject == (u32)(&File->f_owner) ) {
 914             //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id);
 915             break;
 916         }
 917     }
 918
 919     if (i==MAX_NUM_APP)
 920             return 0;
 921
 922     while (list_empty(&info->app_info[i].app_sqlist) == 0) {
 923         DEBUG("Remove and free memory queue up on slow queue\n");
 924         pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, DPRAM_BLK, list);
 925         list_del(&pdpram_blk->list);
 926         ft1000_free_buffer(pdpram_blk, &freercvpool);
 927     }
 928
 929     // initialize application information
 930     info->appcnt--;
 931     DEBUG("ft1000_chdev:%s:appcnt = %d\n", __FUNCTION__, info->appcnt);
 932     info->app_info[i].fileobject = 0;
 933
 934     return 0;
 935 }
 936