2 *---------------------------------------------------------------------------
3 * FT1000 driver for Flarion Flash OFDM NIC Device
5 * Copyright (C) 2006 Flarion Technologies, All rights reserved.
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option) any
10 * later version. This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details. You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place -
16 * Suite 330, Boston, MA 02111-1307, USA.
17 *---------------------------------------------------------------------------
19 * File: ft1000_chdev.c
21 * Description: Custom character device dispatch routines.
24 * 8/29/02 Whc Ported to Linux.
25 * 6/05/06 Whc Porting to Linux 2.6.9
27 *---------------------------------------------------------------------------
29 #include <linux/module.h>
30 #include <linux/kernel.h>
31 #include <linux/sched.h>
32 #include <linux/errno.h>
33 #include <linux/poll.h>
34 #include <linux/netdevice.h>
35 #include <linux/delay.h>
37 #include <linux/ioctl.h>
38 #include <linux/debugfs.h>
39 #include "ft1000_usb.h"
41 static int ft1000_flarion_cnt = 0;
43 static int ft1000_open(struct inode *inode, struct file *file);
44 static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait);
45 static long ft1000_ioctl(struct file *file, unsigned int command,
46 unsigned long argument);
47 static int ft1000_release(struct inode *inode, struct file *file);
49 /* List to free receive command buffer pool */
50 struct list_head freercvpool;
52 /* lock to arbitrate free buffer list for receive command data */
53 spinlock_t free_buff_lock;
58 * Table of entry-point routines for char device
60 static const struct file_operations ft1000fops = {
61 .unlocked_ioctl = ft1000_ioctl,
62 .poll = ft1000_poll_dev,
64 .release = ft1000_release,
69 ---------------------------------------------------------------------------
70 * Function: ft1000_get_buffer
80 *---------------------------------------------------------------------------
82 struct dpram_blk *ft1000_get_buffer(struct list_head *bufflist)
85 struct dpram_blk *ptr;
87 spin_lock_irqsave(&free_buff_lock, flags);
88 /* Check if buffer is available */
89 if (list_empty(bufflist)) {
90 DEBUG("ft1000_get_buffer: No more buffer - %d\n", numofmsgbuf);
94 ptr = list_entry(bufflist->next, struct dpram_blk, list);
96 /* DEBUG("ft1000_get_buffer: number of free msg buffers = %d\n", numofmsgbuf); */
98 spin_unlock_irqrestore(&free_buff_lock, flags);
107 *---------------------------------------------------------------------------
108 * Function: ft1000_free_buffer
118 *---------------------------------------------------------------------------
120 void ft1000_free_buffer(struct dpram_blk *pdpram_blk, struct list_head *plist)
124 spin_lock_irqsave(&free_buff_lock, flags);
125 /* Put memory back to list */
126 list_add_tail(&pdpram_blk->list, plist);
128 /*DEBUG("ft1000_free_buffer: number of free msg buffers = %d\n", numofmsgbuf); */
129 spin_unlock_irqrestore(&free_buff_lock, flags);
133 *---------------------------------------------------------------------------
134 * Function: ft1000_CreateDevice
136 * Parameters: dev - pointer to adapter object
138 * Returns: 0 if successful
140 * Description: Creates a private char device.
142 * Notes: Only called by init_module().
144 *---------------------------------------------------------------------------
146 int ft1000_create_dev(struct ft1000_usb *dev)
150 struct dentry *dir, *file;
151 struct ft1000_debug_dirs *tmp;
153 /* make a new device name */
154 sprintf(dev->DeviceName, "%s%d", "FT1000_", dev->CardNumber);
156 DEBUG("%s: number of instance = %d\n", __func__, ft1000_flarion_cnt);
157 DEBUG("DeviceCreated = %x\n", dev->DeviceCreated);
159 if (dev->DeviceCreated) {
160 DEBUG("%s: \"%s\" already registered\n", __func__, dev->DeviceName);
165 /* register the device */
166 DEBUG("%s: \"%s\" debugfs device registration\n", __func__, dev->DeviceName);
168 tmp = kmalloc(sizeof(struct ft1000_debug_dirs), GFP_KERNEL);
174 dir = debugfs_create_dir(dev->DeviceName, NULL);
176 result = PTR_ERR(dir);
180 file = debugfs_create_file("device", S_IRUGO | S_IWUSR, dir,
183 result = PTR_ERR(file);
184 goto debug_file_fail;
189 tmp->int_number = dev->CardNumber;
190 list_add(&(tmp->list), &(dev->nodes.list));
192 DEBUG("%s: registered debugfs directory \"%s\"\n", __func__, dev->DeviceName);
194 /* initialize application information */
196 for (i=0; i<MAX_NUM_APP; i++) {
197 dev->app_info[i].nTxMsg = 0;
198 dev->app_info[i].nRxMsg = 0;
199 dev->app_info[i].nTxMsgReject = 0;
200 dev->app_info[i].nRxMsgMiss = 0;
201 dev->app_info[i].fileobject = NULL;
202 dev->app_info[i].app_id = i+1;
203 dev->app_info[i].DspBCMsgFlag = 0;
204 dev->app_info[i].NumOfMsg = 0;
205 init_waitqueue_head(&dev->app_info[i].wait_dpram_msg);
206 INIT_LIST_HEAD(&dev->app_info[i].app_sqlist);
209 dev->DeviceCreated = TRUE;
210 ft1000_flarion_cnt++;
223 *---------------------------------------------------------------------------
224 * Function: ft1000_DestroyDeviceDEBUG
226 * Parameters: dev - pointer to adapter object
228 * Description: Destroys a private char device.
230 * Notes: Only called by cleanup_module().
232 *---------------------------------------------------------------------------
234 void ft1000_destroy_dev(struct net_device *netdev)
236 struct ft1000_info *info = netdev_priv(netdev);
237 struct ft1000_usb *dev = info->priv;
239 struct dpram_blk *pdpram_blk;
240 struct dpram_blk *ptr;
241 struct list_head *pos, *q;
242 struct ft1000_debug_dirs *dir;
244 DEBUG("%s called\n", __func__);
248 if (dev->DeviceCreated) {
249 ft1000_flarion_cnt--;
250 list_for_each_safe(pos, q, &dev->nodes.list) {
251 dir = list_entry(pos, struct ft1000_debug_dirs, list);
252 if (dir->int_number == dev->CardNumber) {
253 debugfs_remove(dir->file);
254 debugfs_remove(dir->dent);
259 DEBUG("%s: unregistered device \"%s\"\n", __func__,
262 /* Make sure we free any memory reserve for slow Queue */
263 for (i=0; i<MAX_NUM_APP; i++) {
264 while (list_empty(&dev->app_info[i].app_sqlist) == 0) {
265 pdpram_blk = list_entry(dev->app_info[i].app_sqlist.next, struct dpram_blk, list);
266 list_del(&pdpram_blk->list);
267 ft1000_free_buffer(pdpram_blk, &freercvpool);
270 wake_up_interruptible(&dev->app_info[i].wait_dpram_msg);
273 /* Remove buffer allocated for receive command data */
274 if (ft1000_flarion_cnt == 0) {
275 while (list_empty(&freercvpool) == 0) {
276 ptr = list_entry(freercvpool.next, struct dpram_blk, list);
277 list_del(&ptr->list);
282 dev->DeviceCreated = FALSE;
289 *---------------------------------------------------------------------------
290 * Function: ft1000_open
298 *---------------------------------------------------------------------------
300 static int ft1000_open(struct inode *inode, struct file *file)
302 struct ft1000_info *info;
303 struct ft1000_usb *dev = (struct ft1000_usb *)inode->i_private;
306 DEBUG("%s called\n", __func__);
307 num = (MINOR(inode->i_rdev) & 0xf);
308 DEBUG("ft1000_open: minor number=%d\n", num);
310 info = file->private_data = netdev_priv(dev->net);
312 DEBUG("f_owner = %p number of application = %d\n", (&file->f_owner), dev->appcnt);
314 /* Check if maximum number of application exceeded */
315 if (dev->appcnt > MAX_NUM_APP) {
316 DEBUG("Maximum number of application exceeded\n");
320 /* Search for available application info block */
321 for (i=0; i<MAX_NUM_APP; i++) {
322 if ((dev->app_info[i].fileobject == NULL)) {
327 /* Fail due to lack of application info block */
328 if (i == MAX_NUM_APP) {
329 DEBUG("Could not find an application info block\n");
334 dev->app_info[i].fileobject = &file->f_owner;
335 dev->app_info[i].nTxMsg = 0;
336 dev->app_info[i].nRxMsg = 0;
337 dev->app_info[i].nTxMsgReject = 0;
338 dev->app_info[i].nRxMsgMiss = 0;
340 nonseekable_open(inode, file);
346 *---------------------------------------------------------------------------
347 * Function: ft1000_poll_dev
355 *---------------------------------------------------------------------------
358 static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait)
360 struct net_device *netdev = file->private_data;
361 struct ft1000_info *info = netdev_priv(netdev);
362 struct ft1000_usb *dev = info->priv;
365 /* DEBUG("ft1000_poll_dev called\n"); */
366 if (ft1000_flarion_cnt == 0) {
367 DEBUG("FT1000:ft1000_poll_dev called when ft1000_flarion_cnt is zero\n");
371 /* Search for matching file object */
372 for (i=0; i<MAX_NUM_APP; i++) {
373 if (dev->app_info[i].fileobject == &file->f_owner) {
374 /* DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", dev->app_info[i].app_id); */
379 /* Could not find application info block */
380 if (i == MAX_NUM_APP) {
381 DEBUG("FT1000:ft1000_ioctl:Could not find application info block\n");
385 if (list_empty(&dev->app_info[i].app_sqlist) == 0) {
386 DEBUG("FT1000:ft1000_poll_dev:Message detected in slow queue\n");
387 return(POLLIN | POLLRDNORM | POLLPRI);
390 poll_wait(file, &dev->app_info[i].wait_dpram_msg, wait);
391 /* DEBUG("FT1000:ft1000_poll_dev:Polling for data from DSP\n"); */
397 *---------------------------------------------------------------------------
398 * Function: ft1000_ioctl
406 *---------------------------------------------------------------------------
408 static long ft1000_ioctl(struct file *file, unsigned int command,
409 unsigned long argument)
411 void __user *argp = (void __user *)argument;
412 struct ft1000_info *info;
413 struct ft1000_usb *ft1000dev;
420 IOCTL_GET_VER get_ver_data;
421 IOCTL_GET_DSP_STAT get_stat_data;
422 u8 ConnectionMsg[] = {0x00,0x44,0x10,0x20,0x80,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x93,0x64,
423 0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x0a,
424 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
425 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x12,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
426 0x00,0x00,0x02,0x37,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x01,0x00,0x01,0x7f,0x00,
427 0x00,0x01,0x00,0x00};
429 unsigned short ledStat=0;
430 unsigned short conStat=0;
432 /* DEBUG("ft1000_ioctl called\n"); */
434 if (ft1000_flarion_cnt == 0) {
435 DEBUG("FT1000:ft1000_ioctl called when ft1000_flarion_cnt is zero\n");
439 /* DEBUG("FT1000:ft1000_ioctl:command = 0x%x argument = 0x%8x\n", command, (u32)argument); */
441 info = file->private_data;
442 ft1000dev = info->priv;
443 cmd = _IOC_NR(command);
444 /* DEBUG("FT1000:ft1000_ioctl:cmd = 0x%x\n", cmd); */
446 /* process the command */
448 case IOCTL_REGISTER_CMD:
449 DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_REGISTER called\n");
450 result = get_user(tempword, (__u16 __user*)argp);
452 DEBUG("result = %d failed to get_user\n", result);
455 if (tempword == DSPBCMSGID) {
456 /* Search for matching file object */
457 for (i=0; i<MAX_NUM_APP; i++) {
458 if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
459 ft1000dev->app_info[i].DspBCMsgFlag = 1;
460 DEBUG("FT1000:ft1000_ioctl:Registered for broadcast messages\n");
467 case IOCTL_GET_VER_CMD:
468 DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_VER called\n");
470 get_ver_data.drv_ver = FT1000_DRV_VER;
472 if (copy_to_user(argp, &get_ver_data, sizeof(get_ver_data))) {
473 DEBUG("FT1000:ft1000_ioctl: copy fault occurred\n");
478 DEBUG("FT1000:ft1000_ioctl:driver version = 0x%x\n",(unsigned int)get_ver_data.drv_ver);
482 /* Connect Message */
483 DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_CONNECT\n");
484 ConnectionMsg[79] = 0xfc;
485 card_send_command(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
488 case IOCTL_DISCONNECT:
489 /* Disconnect Message */
490 DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_DISCONNECT\n");
491 ConnectionMsg[79] = 0xfd;
492 card_send_command(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
494 case IOCTL_GET_DSP_STAT_CMD:
495 /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DSP_STAT called\n"); */
496 memset(&get_stat_data, 0, sizeof(get_stat_data));
497 memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ);
498 memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ);
499 memcpy(get_stat_data.Sku, info->Sku, SKUSZ);
500 memcpy(get_stat_data.eui64, info->eui64, EUISZ);
502 if (info->ProgConStat != 0xFF) {
503 ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_LED, (u8 *)&ledStat, FT1000_MAG_DSP_LED_INDX);
504 get_stat_data.LedStat = ntohs(ledStat);
505 DEBUG("FT1000:ft1000_ioctl: LedStat = 0x%x\n", get_stat_data.LedStat);
506 ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_CON_STATE, (u8 *)&conStat, FT1000_MAG_DSP_CON_STATE_INDX);
507 get_stat_data.ConStat = ntohs(conStat);
508 DEBUG("FT1000:ft1000_ioctl: ConStat = 0x%x\n", get_stat_data.ConStat);
510 get_stat_data.ConStat = 0x0f;
514 get_stat_data.nTxPkts = info->stats.tx_packets;
515 get_stat_data.nRxPkts = info->stats.rx_packets;
516 get_stat_data.nTxBytes = info->stats.tx_bytes;
517 get_stat_data.nRxBytes = info->stats.rx_bytes;
518 do_gettimeofday(&tv);
519 get_stat_data.ConTm = (u32)(tv.tv_sec - info->ConTm);
520 DEBUG("Connection Time = %d\n", (int)get_stat_data.ConTm);
521 if (copy_to_user(argp, &get_stat_data, sizeof(get_stat_data))) {
522 DEBUG("FT1000:ft1000_ioctl: copy fault occurred\n");
526 DEBUG("ft1000_chioctl: GET_DSP_STAT succeed\n");
528 case IOCTL_SET_DPRAM_CMD:
530 IOCTL_DPRAM_BLK *dpram_data = NULL;
531 /* IOCTL_DPRAM_COMMAND dpram_command; */
534 struct pseudo_hdr *ppseudo_hdr;
540 /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_SET_DPRAM called\n");*/
543 if (ft1000_flarion_cnt == 0) {
547 if (ft1000dev->DrvMsgPend) {
551 if (ft1000dev->fProvComplete == 0) {
555 ft1000dev->fAppMsgPend = 1;
557 if (info->CardReady) {
559 /* DEBUG("FT1000:ft1000_ioctl: try to SET_DPRAM \n"); */
561 /* Get the length field to see how many bytes to copy */
562 result = get_user(msgsz, (__u16 __user *)argp);
563 msgsz = ntohs(msgsz);
564 /* DEBUG("FT1000:ft1000_ioctl: length of message = %d\n", msgsz); */
566 if (msgsz > MAX_CMD_SQSIZE) {
567 DEBUG("FT1000:ft1000_ioctl: bad message length = %d\n", msgsz);
573 dpram_data = kmalloc(msgsz + 2, GFP_KERNEL);
577 if (copy_from_user(dpram_data, argp, msgsz+2)) {
578 DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
581 /* Check if this message came from a registered application */
582 for (i=0; i<MAX_NUM_APP; i++) {
583 if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
587 if (i==MAX_NUM_APP) {
588 DEBUG("FT1000:No matching application fileobject\n");
595 /* Check message qtype type which is the lower byte within qos_class */
596 qtype = ntohs(dpram_data->pseudohdr.qos_class) & 0xff;
597 /* DEBUG("FT1000_ft1000_ioctl: qtype = %d\n", qtype); */
600 /* Put message into Slow Queue */
601 /* Only put a message into the DPRAM if msg doorbell is available */
602 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
603 /* DEBUG("FT1000_ft1000_ioctl: READ REGISTER tempword=%x\n", tempword); */
604 if (tempword & FT1000_DB_DPRAM_TX) {
605 /* Suspend for 2ms and try again due to DSP doorbell busy */
607 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
608 if (tempword & FT1000_DB_DPRAM_TX) {
609 /* Suspend for 1ms and try again due to DSP doorbell busy */
611 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
612 if (tempword & FT1000_DB_DPRAM_TX) {
613 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
614 if (tempword & FT1000_DB_DPRAM_TX) {
615 /* Suspend for 3ms and try again due to DSP doorbell busy */
617 status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
618 if (tempword & FT1000_DB_DPRAM_TX) {
619 DEBUG("FT1000:ft1000_ioctl:Doorbell not available\n");
629 /*DEBUG("FT1000_ft1000_ioctl: finished reading register\n"); */
631 /* Make sure we are within the limits of the slow queue memory limitation */
632 if ((msgsz < MAX_CMD_SQSIZE) && (msgsz > PSEUDOSZ)) {
633 /* Need to put sequence number plus new checksum for message */
634 pmsg = (u16 *)&dpram_data->pseudohdr;
635 ppseudo_hdr = (struct pseudo_hdr *)pmsg;
637 if (total_len & 0x1) {
641 /* Insert slow queue sequence number */
642 ppseudo_hdr->seq_num = info->squeseqnum++;
643 ppseudo_hdr->portsrc = ft1000dev->app_info[app_index].app_id;
644 /* Calculate new checksum */
645 ppseudo_hdr->checksum = *pmsg++;
646 /* DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum); */
647 for (i=1; i<7; i++) {
648 ppseudo_hdr->checksum ^= *pmsg++;
649 /* DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum); */
652 ppseudo_hdr = (struct pseudo_hdr *)pmsg;
653 card_send_command(ft1000dev,(unsigned short*)dpram_data,total_len+2);
656 ft1000dev->app_info[app_index].nTxMsg++;
663 DEBUG("FT1000:ft1000_ioctl: Card not ready take messages\n");
670 case IOCTL_GET_DPRAM_CMD:
672 struct dpram_blk *pdpram_blk;
673 IOCTL_DPRAM_BLK __user *pioctl_dpram;
676 /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM called\n"); */
678 if (ft1000_flarion_cnt == 0) {
682 /* Search for matching file object */
683 for (i=0; i<MAX_NUM_APP; i++) {
684 if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
685 /*DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
690 /* Could not find application info block */
691 if (i == MAX_NUM_APP) {
692 DEBUG("FT1000:ft1000_ioctl:Could not find application info block\n");
699 if (list_empty(&ft1000dev->app_info[i].app_sqlist) == 0) {
700 /* DEBUG("FT1000:ft1000_ioctl:Message detected in slow queue\n"); */
701 spin_lock_irqsave(&free_buff_lock, flags);
702 pdpram_blk = list_entry(ft1000dev->app_info[i].app_sqlist.next, struct dpram_blk, list);
703 list_del(&pdpram_blk->list);
704 ft1000dev->app_info[i].NumOfMsg--;
705 /* DEBUG("FT1000:ft1000_ioctl:NumOfMsg for app %d = %d\n", i, ft1000dev->app_info[i].NumOfMsg); */
706 spin_unlock_irqrestore(&free_buff_lock, flags);
707 msglen = ntohs(*(u16 *)pdpram_blk->pbuffer) + PSEUDOSZ;
708 result = get_user(msglen, &pioctl_dpram->total_len);
711 msglen = htons(msglen);
712 /* DEBUG("FT1000:ft1000_ioctl:msg length = %x\n", msglen); */
713 if (copy_to_user (&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen)) {
714 DEBUG("FT1000:ft1000_ioctl: copy fault occurred\n");
719 ft1000_free_buffer(pdpram_blk, &freercvpool);
722 /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM no message\n"); */
727 DEBUG("FT1000:ft1000_ioctl:unknown command: 0x%x\n", command);
731 ft1000dev->fAppMsgPend = 0;
736 *---------------------------------------------------------------------------
737 * Function: ft1000_release
745 *---------------------------------------------------------------------------
747 static int ft1000_release(struct inode *inode, struct file *file)
749 struct ft1000_info *info;
750 struct net_device *dev;
751 struct ft1000_usb *ft1000dev;
753 struct dpram_blk *pdpram_blk;
755 DEBUG("ft1000_release called\n");
757 dev = file->private_data;
758 info = netdev_priv(dev);
759 ft1000dev = info->priv;
761 if (ft1000_flarion_cnt == 0) {
766 /* Search for matching file object */
767 for (i=0; i<MAX_NUM_APP; i++) {
768 if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
769 /* DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
777 while (list_empty(&ft1000dev->app_info[i].app_sqlist) == 0) {
778 DEBUG("Remove and free memory queue up on slow queue\n");
779 pdpram_blk = list_entry(ft1000dev->app_info[i].app_sqlist.next, struct dpram_blk, list);
780 list_del(&pdpram_blk->list);
781 ft1000_free_buffer(pdpram_blk, &freercvpool);
784 /* initialize application information */
786 DEBUG("ft1000_chdev:%s:appcnt = %d\n", __FUNCTION__, ft1000dev->appcnt);
787 ft1000dev->app_info[i].fileobject = NULL;