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 struct IOCTL_GET_VER get_ver_data
;
421 struct 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 result
= 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 result
= 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 struct IOCTL_DPRAM_BLK
*dpram_data
= NULL
;
531 /* struct 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
);
565 msgsz
= ntohs(msgsz
);
566 /* DEBUG("FT1000:ft1000_ioctl: length of message = %d\n", msgsz); */
568 if (msgsz
> MAX_CMD_SQSIZE
) {
569 DEBUG("FT1000:ft1000_ioctl: bad message length = %d\n", msgsz
);
575 dpram_data
= kmalloc(msgsz
+ 2, GFP_KERNEL
);
579 if (copy_from_user(dpram_data
, argp
, msgsz
+2)) {
580 DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n");
583 /* Check if this message came from a registered application */
584 for (i
=0; i
<MAX_NUM_APP
; i
++) {
585 if (ft1000dev
->app_info
[i
].fileobject
== &file
->f_owner
) {
589 if (i
==MAX_NUM_APP
) {
590 DEBUG("FT1000:No matching application fileobject\n");
597 /* Check message qtype type which is the lower byte within qos_class */
598 qtype
= ntohs(dpram_data
->pseudohdr
.qos_class
) & 0xff;
599 /* DEBUG("FT1000_ft1000_ioctl: qtype = %d\n", qtype); */
602 /* Put message into Slow Queue */
603 /* Only put a message into the DPRAM if msg doorbell is available */
604 status
= ft1000_read_register(ft1000dev
, &tempword
, FT1000_REG_DOORBELL
);
605 /* DEBUG("FT1000_ft1000_ioctl: READ REGISTER tempword=%x\n", tempword); */
606 if (tempword
& FT1000_DB_DPRAM_TX
) {
607 /* Suspend for 2ms and try again due to DSP doorbell busy */
609 status
= ft1000_read_register(ft1000dev
, &tempword
, FT1000_REG_DOORBELL
);
610 if (tempword
& FT1000_DB_DPRAM_TX
) {
611 /* Suspend for 1ms and try again due to DSP doorbell busy */
613 status
= ft1000_read_register(ft1000dev
, &tempword
, FT1000_REG_DOORBELL
);
614 if (tempword
& FT1000_DB_DPRAM_TX
) {
615 status
= ft1000_read_register(ft1000dev
, &tempword
, FT1000_REG_DOORBELL
);
616 if (tempword
& FT1000_DB_DPRAM_TX
) {
617 /* Suspend for 3ms and try again due to DSP doorbell busy */
619 status
= ft1000_read_register(ft1000dev
, &tempword
, FT1000_REG_DOORBELL
);
620 if (tempword
& FT1000_DB_DPRAM_TX
) {
621 DEBUG("FT1000:ft1000_ioctl:Doorbell not available\n");
631 /*DEBUG("FT1000_ft1000_ioctl: finished reading register\n"); */
633 /* Make sure we are within the limits of the slow queue memory limitation */
634 if ((msgsz
< MAX_CMD_SQSIZE
) && (msgsz
> PSEUDOSZ
)) {
635 /* Need to put sequence number plus new checksum for message */
636 pmsg
= (u16
*)&dpram_data
->pseudohdr
;
637 ppseudo_hdr
= (struct pseudo_hdr
*)pmsg
;
639 if (total_len
& 0x1) {
643 /* Insert slow queue sequence number */
644 ppseudo_hdr
->seq_num
= info
->squeseqnum
++;
645 ppseudo_hdr
->portsrc
= ft1000dev
->app_info
[app_index
].app_id
;
646 /* Calculate new checksum */
647 ppseudo_hdr
->checksum
= *pmsg
++;
648 /* DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum); */
649 for (i
=1; i
<7; i
++) {
650 ppseudo_hdr
->checksum
^= *pmsg
++;
651 /* DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum); */
654 ppseudo_hdr
= (struct pseudo_hdr
*)pmsg
;
655 result
= card_send_command(ft1000dev
,(unsigned short*)dpram_data
,total_len
+2);
658 ft1000dev
->app_info
[app_index
].nTxMsg
++;
665 DEBUG("FT1000:ft1000_ioctl: Card not ready take messages\n");
672 case IOCTL_GET_DPRAM_CMD
:
674 struct dpram_blk
*pdpram_blk
;
675 struct IOCTL_DPRAM_BLK __user
*pioctl_dpram
;
678 /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM called\n"); */
680 if (ft1000_flarion_cnt
== 0) {
684 /* Search for matching file object */
685 for (i
=0; i
<MAX_NUM_APP
; i
++) {
686 if (ft1000dev
->app_info
[i
].fileobject
== &file
->f_owner
) {
687 /*DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
692 /* Could not find application info block */
693 if (i
== MAX_NUM_APP
) {
694 DEBUG("FT1000:ft1000_ioctl:Could not find application info block\n");
701 if (list_empty(&ft1000dev
->app_info
[i
].app_sqlist
) == 0) {
702 /* DEBUG("FT1000:ft1000_ioctl:Message detected in slow queue\n"); */
703 spin_lock_irqsave(&free_buff_lock
, flags
);
704 pdpram_blk
= list_entry(ft1000dev
->app_info
[i
].app_sqlist
.next
, struct dpram_blk
, list
);
705 list_del(&pdpram_blk
->list
);
706 ft1000dev
->app_info
[i
].NumOfMsg
--;
707 /* DEBUG("FT1000:ft1000_ioctl:NumOfMsg for app %d = %d\n", i, ft1000dev->app_info[i].NumOfMsg); */
708 spin_unlock_irqrestore(&free_buff_lock
, flags
);
709 msglen
= ntohs(*(u16
*)pdpram_blk
->pbuffer
) + PSEUDOSZ
;
710 result
= get_user(msglen
, &pioctl_dpram
->total_len
);
713 msglen
= htons(msglen
);
714 /* DEBUG("FT1000:ft1000_ioctl:msg length = %x\n", msglen); */
715 if (copy_to_user (&pioctl_dpram
->pseudohdr
, pdpram_blk
->pbuffer
, msglen
)) {
716 DEBUG("FT1000:ft1000_ioctl: copy fault occurred\n");
721 ft1000_free_buffer(pdpram_blk
, &freercvpool
);
724 /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM no message\n"); */
729 DEBUG("FT1000:ft1000_ioctl:unknown command: 0x%x\n", command
);
733 ft1000dev
->fAppMsgPend
= 0;
738 *---------------------------------------------------------------------------
739 * Function: ft1000_release
747 *---------------------------------------------------------------------------
749 static int ft1000_release(struct inode
*inode
, struct file
*file
)
751 struct ft1000_info
*info
;
752 struct net_device
*dev
;
753 struct ft1000_usb
*ft1000dev
;
755 struct dpram_blk
*pdpram_blk
;
757 DEBUG("ft1000_release called\n");
759 dev
= file
->private_data
;
760 info
= netdev_priv(dev
);
761 ft1000dev
= info
->priv
;
763 if (ft1000_flarion_cnt
== 0) {
768 /* Search for matching file object */
769 for (i
=0; i
<MAX_NUM_APP
; i
++) {
770 if (ft1000dev
->app_info
[i
].fileobject
== &file
->f_owner
) {
771 /* DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
779 while (list_empty(&ft1000dev
->app_info
[i
].app_sqlist
) == 0) {
780 DEBUG("Remove and free memory queue up on slow queue\n");
781 pdpram_blk
= list_entry(ft1000dev
->app_info
[i
].app_sqlist
.next
, struct dpram_blk
, list
);
782 list_del(&pdpram_blk
->list
);
783 ft1000_free_buffer(pdpram_blk
, &freercvpool
);
786 /* initialize application information */
788 DEBUG("ft1000_chdev:%s:appcnt = %d\n", __func__
, ft1000dev
->appcnt
);
789 ft1000dev
->app_info
[i
].fileobject
= NULL
;