diff options
Diffstat (limited to 'drivers/staging/ft1000/ft1000-usb/ft1000_debug.c')
| -rw-r--r-- | drivers/staging/ft1000/ft1000-usb/ft1000_debug.c | 789 |
1 files changed, 0 insertions, 789 deletions
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c deleted file mode 100644 index f241a3a5a684..000000000000 --- a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c +++ /dev/null @@ -1,789 +0,0 @@ -/* - *--------------------------------------------------------------------------- - * FT1000 driver for Flarion Flash OFDM NIC Device - * - * Copyright (C) 2006 Flarion Technologies, All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) any - * later version. This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - - * Suite 330, Boston, MA 02111-1307, USA. - *--------------------------------------------------------------------------- - * - * File: ft1000_chdev.c - * - * Description: Custom character device dispatch routines. - * - * History: - * 8/29/02 Whc Ported to Linux. - * 6/05/06 Whc Porting to Linux 2.6.9 - * - *--------------------------------------------------------------------------- - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/errno.h> -#include <linux/poll.h> -#include <linux/netdevice.h> -#include <linux/delay.h> - -#include <linux/ioctl.h> -#include <linux/debugfs.h> -#include "ft1000_usb.h" - -static int ft1000_flarion_cnt; - -static int ft1000_open(struct inode *inode, struct file *file); -static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait); -static long ft1000_ioctl(struct file *file, unsigned int command, - unsigned long argument); -static int ft1000_release(struct inode *inode, struct file *file); - -/* List to free receive command buffer pool */ -struct list_head freercvpool; - -/* lock to arbitrate free buffer list for receive command data */ -spinlock_t free_buff_lock; - -int numofmsgbuf; - -/* - * Table of entry-point routines for char device - */ -static const struct file_operations ft1000fops = { - .unlocked_ioctl = ft1000_ioctl, - .poll = ft1000_poll_dev, - .open = ft1000_open, - .release = ft1000_release, - .llseek = no_llseek, -}; - -/* - --------------------------------------------------------------------------- - * Function: ft1000_get_buffer - * - * Parameters: - * - * Returns: - * - * Description: - * - * Notes: - * - *--------------------------------------------------------------------------- - */ -struct dpram_blk *ft1000_get_buffer(struct list_head *bufflist) -{ - unsigned long flags; - struct dpram_blk *ptr; - - spin_lock_irqsave(&free_buff_lock, flags); - /* Check if buffer is available */ - if (list_empty(bufflist)) { - pr_debug("No more buffer - %d\n", numofmsgbuf); - ptr = NULL; - } else { - numofmsgbuf--; - ptr = list_entry(bufflist->next, struct dpram_blk, list); - list_del(&ptr->list); - /* pr_debug("number of free msg buffers = %d\n", numofmsgbuf); */ - } - spin_unlock_irqrestore(&free_buff_lock, flags); - - return ptr; -} - - - - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_free_buffer - * - * Parameters: - * - * Returns: - * - * Description: - * - * Notes: - * - *--------------------------------------------------------------------------- - */ -void ft1000_free_buffer(struct dpram_blk *pdpram_blk, struct list_head *plist) -{ - unsigned long flags; - - spin_lock_irqsave(&free_buff_lock, flags); - /* Put memory back to list */ - list_add_tail(&pdpram_blk->list, plist); - numofmsgbuf++; - /*pr_debug("number of free msg buffers = %d\n", numofmsgbuf); */ - spin_unlock_irqrestore(&free_buff_lock, flags); -} - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_CreateDevice - * - * Parameters: dev - pointer to adapter object - * - * Returns: 0 if successful - * - * Description: Creates a private char device. - * - * Notes: Only called by init_module(). - * - *--------------------------------------------------------------------------- - */ -int ft1000_create_dev(struct ft1000_usb *dev) -{ - int result; - int i; - struct dentry *dir, *file; - struct ft1000_debug_dirs *tmp; - - /* make a new device name */ - sprintf(dev->DeviceName, "%s%d", "FT1000_", dev->CardNumber); - - pr_debug("number of instance = %d\n", ft1000_flarion_cnt); - pr_debug("DeviceCreated = %x\n", dev->DeviceCreated); - - if (dev->DeviceCreated) { - pr_debug("\"%s\" already registered\n", dev->DeviceName); - return -EIO; - } - - - /* register the device */ - pr_debug("\"%s\" debugfs device registration\n", dev->DeviceName); - - tmp = kmalloc(sizeof(struct ft1000_debug_dirs), GFP_KERNEL); - if (tmp == NULL) { - result = -1; - goto fail; - } - - dir = debugfs_create_dir(dev->DeviceName, NULL); - if (IS_ERR(dir)) { - result = PTR_ERR(dir); - goto debug_dir_fail; - } - - file = debugfs_create_file("device", S_IRUGO | S_IWUSR, dir, - dev, &ft1000fops); - if (IS_ERR(file)) { - result = PTR_ERR(file); - goto debug_file_fail; - } - - tmp->dent = dir; - tmp->file = file; - tmp->int_number = dev->CardNumber; - list_add(&tmp->list, &dev->nodes.list); - - pr_debug("registered debugfs directory \"%s\"\n", dev->DeviceName); - - /* initialize application information */ - dev->appcnt = 0; - for (i = 0; i < MAX_NUM_APP; i++) { - dev->app_info[i].nTxMsg = 0; - dev->app_info[i].nRxMsg = 0; - dev->app_info[i].nTxMsgReject = 0; - dev->app_info[i].nRxMsgMiss = 0; - dev->app_info[i].fileobject = NULL; - dev->app_info[i].app_id = i+1; - dev->app_info[i].DspBCMsgFlag = 0; - dev->app_info[i].NumOfMsg = 0; - init_waitqueue_head(&dev->app_info[i].wait_dpram_msg); - INIT_LIST_HEAD(&dev->app_info[i].app_sqlist); - } - - dev->DeviceCreated = TRUE; - ft1000_flarion_cnt++; - - return 0; - -debug_file_fail: - debugfs_remove(dir); -debug_dir_fail: - kfree(tmp); -fail: - return result; -} - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_DestroyDeviceDEBUG - * - * Parameters: dev - pointer to adapter object - * - * Description: Destroys a private char device. - * - * Notes: Only called by cleanup_module(). - * - *--------------------------------------------------------------------------- - */ -void ft1000_destroy_dev(struct net_device *netdev) -{ - struct ft1000_info *info = netdev_priv(netdev); - struct ft1000_usb *dev = info->priv; - int i; - struct dpram_blk *pdpram_blk; - struct dpram_blk *ptr; - struct list_head *pos, *q; - struct ft1000_debug_dirs *dir; - - if (dev->DeviceCreated) { - ft1000_flarion_cnt--; - list_for_each_safe(pos, q, &dev->nodes.list) { - dir = list_entry(pos, struct ft1000_debug_dirs, list); - if (dir->int_number == dev->CardNumber) { - debugfs_remove(dir->file); - debugfs_remove(dir->dent); - list_del(pos); - kfree(dir); - } - } - pr_debug("unregistered device \"%s\"\n", dev->DeviceName); - - /* Make sure we free any memory reserve for slow Queue */ - for (i = 0; i < MAX_NUM_APP; i++) { - while (list_empty(&dev->app_info[i].app_sqlist) == 0) { - pdpram_blk = list_entry(dev->app_info[i].app_sqlist.next, - struct dpram_blk, list); - list_del(&pdpram_blk->list); - ft1000_free_buffer(pdpram_blk, &freercvpool); - - } - wake_up_interruptible(&dev->app_info[i].wait_dpram_msg); - } - - /* Remove buffer allocated for receive command data */ - if (ft1000_flarion_cnt == 0) { - while (list_empty(&freercvpool) == 0) { - ptr = list_entry(freercvpool.next, struct dpram_blk, list); - list_del(&ptr->list); - kfree(ptr->pbuffer); - kfree(ptr); - } - } - dev->DeviceCreated = FALSE; - } - - -} - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_open - * - * Parameters: - * - * Description: - * - * Notes: - * - *--------------------------------------------------------------------------- - */ -static int ft1000_open(struct inode *inode, struct file *file) -{ - struct ft1000_info *info; - struct ft1000_usb *dev = (struct ft1000_usb *)inode->i_private; - int i, num; - - num = MINOR(inode->i_rdev) & 0xf; - pr_debug("minor number=%d\n", num); - - info = file->private_data = netdev_priv(dev->net); - - pr_debug("f_owner = %p number of application = %d\n", - &file->f_owner, dev->appcnt); - - /* Check if maximum number of application exceeded */ - if (dev->appcnt > MAX_NUM_APP) { - pr_debug("Maximum number of application exceeded\n"); - return -EACCES; - } - - /* Search for available application info block */ - for (i = 0; i < MAX_NUM_APP; i++) { - if (dev->app_info[i].fileobject == NULL) - break; - } - - /* Fail due to lack of application info block */ - if (i == MAX_NUM_APP) { - pr_debug("Could not find an application info block\n"); - return -EACCES; - } - - dev->appcnt++; - dev->app_info[i].fileobject = &file->f_owner; - dev->app_info[i].nTxMsg = 0; - dev->app_info[i].nRxMsg = 0; - dev->app_info[i].nTxMsgReject = 0; - dev->app_info[i].nRxMsgMiss = 0; - - nonseekable_open(inode, file); - return 0; -} - - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_poll_dev - * - * Parameters: - * - * Description: - * - * Notes: - * - *--------------------------------------------------------------------------- - */ - -static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait) -{ - struct net_device *netdev = file->private_data; - struct ft1000_info *info = netdev_priv(netdev); - struct ft1000_usb *dev = info->priv; - int i; - - if (ft1000_flarion_cnt == 0) { - pr_debug("called with ft1000_flarion_cnt value zero\n"); - return -EBADF; - } - - /* Search for matching file object */ - for (i = 0; i < MAX_NUM_APP; i++) { - if (dev->app_info[i].fileobject == &file->f_owner) { - /* pr_debug("Message is for AppId = %d\n", dev->app_info[i].app_id); */ - break; - } - } - - /* Could not find application info block */ - if (i == MAX_NUM_APP) { - pr_debug("Could not find application info block\n"); - return -EACCES; - } - - if (list_empty(&dev->app_info[i].app_sqlist) == 0) { - pr_debug("Message detected in slow queue\n"); - return(POLLIN | POLLRDNORM | POLLPRI); - } - - poll_wait(file, &dev->app_info[i].wait_dpram_msg, wait); - /* pr_debug("Polling for data from DSP\n"); */ - - return 0; -} - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_ioctl - * - * Parameters: - * - * Description: - * - * Notes: - * - *--------------------------------------------------------------------------- - */ -static long ft1000_ioctl(struct file *file, unsigned int command, - unsigned long argument) -{ - void __user *argp = (void __user *)argument; - struct ft1000_info *info; - struct ft1000_usb *ft1000dev; - int result = 0; - int cmd; - int i; - u16 tempword; - unsigned long flags; - struct timeval tv; - struct IOCTL_GET_VER get_ver_data; - struct IOCTL_GET_DSP_STAT get_stat_data; - u8 ConnectionMsg[] = { - 0x00, 0x44, 0x10, 0x20, 0x80, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x93, 0x64, - 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x0a, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x02, 0x37, 0x00, 0x00, 0x00, 0x08, - 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x7f, 0x00, - 0x00, 0x01, 0x00, 0x00 - }; - - unsigned short ledStat = 0; - unsigned short conStat = 0; - - if (ft1000_flarion_cnt == 0) { - pr_debug("called with ft1000_flarion_cnt of zero\n"); - return -EBADF; - } - - /* pr_debug("command = 0x%x argument = 0x%8x\n", command, (u32)argument); */ - - info = file->private_data; - ft1000dev = info->priv; - cmd = _IOC_NR(command); - /* pr_debug("cmd = 0x%x\n", cmd); */ - - /* process the command */ - switch (cmd) { - case IOCTL_REGISTER_CMD: - pr_debug("IOCTL_FT1000_REGISTER called\n"); - result = get_user(tempword, (__u16 __user *)argp); - if (result) { - pr_debug("result = %d failed to get_user\n", result); - break; - } - if (tempword == DSPBCMSGID) { - /* Search for matching file object */ - for (i = 0; i < MAX_NUM_APP; i++) { - if (ft1000dev->app_info[i].fileobject == &file->f_owner) { - ft1000dev->app_info[i].DspBCMsgFlag = 1; - pr_debug("Registered for broadcast messages\n"); - break; - } - } - } - break; - - case IOCTL_GET_VER_CMD: - pr_debug("IOCTL_FT1000_GET_VER called\n"); - - get_ver_data.drv_ver = FT1000_DRV_VER; - - if (copy_to_user(argp, &get_ver_data, sizeof(get_ver_data))) { - pr_debug("copy fault occurred\n"); - result = -EFAULT; - break; - } - - pr_debug("driver version = 0x%x\n", - (unsigned int)get_ver_data.drv_ver); - - break; - case IOCTL_CONNECT: - /* Connect Message */ - pr_debug("IOCTL_FT1000_CONNECT\n"); - ConnectionMsg[79] = 0xfc; - result = card_send_command(ft1000dev, ConnectionMsg, 0x4c); - - break; - case IOCTL_DISCONNECT: - /* Disconnect Message */ - pr_debug("IOCTL_FT1000_DISCONNECT\n"); - ConnectionMsg[79] = 0xfd; - result = card_send_command(ft1000dev, ConnectionMsg, 0x4c); - break; - case IOCTL_GET_DSP_STAT_CMD: - /* pr_debug("IOCTL_FT1000_GET_DSP_STAT\n"); */ - memset(&get_stat_data, 0, sizeof(get_stat_data)); - memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ); - memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ); - memcpy(get_stat_data.Sku, info->Sku, SKUSZ); - memcpy(get_stat_data.eui64, info->eui64, EUISZ); - - if (info->ProgConStat != 0xFF) { - ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_LED, - (u8 *)&ledStat, FT1000_MAG_DSP_LED_INDX); - get_stat_data.LedStat = ntohs(ledStat); - pr_debug("LedStat = 0x%x\n", get_stat_data.LedStat); - ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_CON_STATE, - (u8 *)&conStat, FT1000_MAG_DSP_CON_STATE_INDX); - get_stat_data.ConStat = ntohs(conStat); - pr_debug("ConStat = 0x%x\n", get_stat_data.ConStat); - } else { - get_stat_data.ConStat = 0x0f; - } - - - get_stat_data.nTxPkts = info->stats.tx_packets; - get_stat_data.nRxPkts = info->stats.rx_packets; - get_stat_data.nTxBytes = info->stats.tx_bytes; - get_stat_data.nRxBytes = info->stats.rx_bytes; - do_gettimeofday(&tv); - get_stat_data.ConTm = (u32)(tv.tv_sec - info->ConTm); - pr_debug("Connection Time = %d\n", (int)get_stat_data.ConTm); - if (copy_to_user(argp, &get_stat_data, sizeof(get_stat_data))) { - pr_debug("copy fault occurred\n"); - result = -EFAULT; - break; - } - pr_debug("GET_DSP_STAT succeed\n"); - break; - case IOCTL_SET_DPRAM_CMD: - { - struct IOCTL_DPRAM_BLK *dpram_data = NULL; - /* struct IOCTL_DPRAM_COMMAND dpram_command; */ - u16 qtype; - u16 msgsz; - struct pseudo_hdr *ppseudo_hdr; - u16 *pmsg; - u16 total_len; - u16 app_index; - u16 status; - - /* pr_debug("IOCTL_FT1000_SET_DPRAM called\n");*/ - - - if (ft1000_flarion_cnt == 0) - return -EBADF; - - if (ft1000dev->DrvMsgPend) - return -ENOTTY; - - if (ft1000dev->fProvComplete == 0) - return -EACCES; - - ft1000dev->fAppMsgPend = true; - - if (info->CardReady) { - - /* pr_debug("try to SET_DPRAM\n"); */ - - /* Get the length field to see how many bytes to copy */ - result = get_user(msgsz, (__u16 __user *)argp); - if (result) - break; - msgsz = ntohs(msgsz); - /* pr_debug("length of message = %d\n", msgsz); */ - - if (msgsz > MAX_CMD_SQSIZE) { - pr_debug("bad message length = %d\n", msgsz); - result = -EINVAL; - break; - } - - result = -ENOMEM; - dpram_data = kmalloc(msgsz + 2, GFP_KERNEL); - if (!dpram_data) - break; - - if (copy_from_user(dpram_data, argp, msgsz+2)) { - pr_debug("copy fault occurred\n"); - result = -EFAULT; - } else { - /* Check if this message came from a registered application */ - for (i = 0; i < MAX_NUM_APP; i++) { - if (ft1000dev->app_info[i].fileobject == &file->f_owner) - break; - } - if (i == MAX_NUM_APP) { - pr_debug("No matching application fileobject\n"); - result = -EINVAL; - kfree(dpram_data); - break; - } - app_index = i; - - /* Check message qtype type which is the lower byte within qos_class */ - qtype = ntohs(dpram_data->pseudohdr.qos_class) & 0xff; - /* pr_debug("qtype = %d\n", qtype); */ - if (!qtype) { - /* Put message into Slow Queue */ - /* Only put a message into the DPRAM if msg doorbell is available */ - status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL); - /* pr_debug("READ REGISTER tempword=%x\n", tempword); */ - if (tempword & FT1000_DB_DPRAM_TX) { - /* Suspend for 2ms and try again due to DSP doorbell busy */ - mdelay(2); - status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL); - if (tempword & FT1000_DB_DPRAM_TX) { - /* Suspend for 1ms and try again due to DSP doorbell busy */ - mdelay(1); - status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL); - if (tempword & FT1000_DB_DPRAM_TX) { - status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL); - if (tempword & FT1000_DB_DPRAM_TX) { - /* Suspend for 3ms and try again due to DSP doorbell busy */ - mdelay(3); - status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL); - if (tempword & FT1000_DB_DPRAM_TX) { - pr_debug("Doorbell not available\n"); - result = -ENOTTY; - kfree(dpram_data); - break; - } - } - } - } - } - - /*pr_debug("finished reading register\n"); */ - - /* Make sure we are within the limits of the slow queue memory limitation */ - if ((msgsz < MAX_CMD_SQSIZE) && (msgsz > PSEUDOSZ)) { - /* Need to put sequence number plus new checksum for message */ - pmsg = (u16 *)&dpram_data->pseudohdr; - ppseudo_hdr = (struct pseudo_hdr *)pmsg; - total_len = msgsz+2; - if (total_len & 0x1) - total_len++; - - /* Insert slow queue sequence number */ - ppseudo_hdr->seq_num = info->squeseqnum++; - ppseudo_hdr->portsrc = ft1000dev->app_info[app_index].app_id; - /* Calculate new checksum */ - ppseudo_hdr->checksum = *pmsg++; - /* pr_debug("checksum = 0x%x\n", ppseudo_hdr->checksum); */ - for (i = 1; i < 7; i++) { - ppseudo_hdr->checksum ^= *pmsg++; - /* pr_debug("checksum = 0x%x\n", ppseudo_hdr->checksum); */ - } - pmsg++; - ppseudo_hdr = (struct pseudo_hdr *)pmsg; - result = card_send_command(ft1000dev, dpram_data, total_len+2); - - - ft1000dev->app_info[app_index].nTxMsg++; - } else { - result = -EINVAL; - } - } - } - } else { - pr_debug("Card not ready take messages\n"); - result = -EACCES; - } - kfree(dpram_data); - - } - break; - case IOCTL_GET_DPRAM_CMD: - { - struct dpram_blk *pdpram_blk; - struct IOCTL_DPRAM_BLK __user *pioctl_dpram; - int msglen; - - /* pr_debug("IOCTL_FT1000_GET_DPRAM called\n"); */ - - if (ft1000_flarion_cnt == 0) - return -EBADF; - - /* Search for matching file object */ - for (i = 0; i < MAX_NUM_APP; i++) { - if (ft1000dev->app_info[i].fileobject == &file->f_owner) { - /*pr_debug("Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */ - break; - } - } - - /* Could not find application info block */ - if (i == MAX_NUM_APP) { - pr_debug("Could not find application info block\n"); - result = -EBADF; - break; - } - - result = 0; - pioctl_dpram = argp; - if (list_empty(&ft1000dev->app_info[i].app_sqlist) == 0) { - /* pr_debug("Message detected in slow queue\n"); */ - spin_lock_irqsave(&free_buff_lock, flags); - pdpram_blk = list_entry(ft1000dev->app_info[i].app_sqlist.next, - struct dpram_blk, list); - list_del(&pdpram_blk->list); - ft1000dev->app_info[i].NumOfMsg--; - /* pr_debug("NumOfMsg for app %d = %d\n", i, ft1000dev->app_info[i].NumOfMsg); */ - spin_unlock_irqrestore(&free_buff_lock, flags); - msglen = ntohs(*(u16 *)pdpram_blk->pbuffer) + PSEUDOSZ; - result = get_user(msglen, &pioctl_dpram->total_len); - if (result) - break; - msglen = htons(msglen); - /* pr_debug("msg length = %x\n", msglen); */ - if (copy_to_user(&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen)) { - pr_debug("copy fault occurred\n"); - result = -EFAULT; - break; - } - - ft1000_free_buffer(pdpram_blk, &freercvpool); - result = msglen; - } - /* pr_debug("IOCTL_FT1000_GET_DPRAM no message\n"); */ - } - break; - - default: - pr_debug("unknown command: 0x%x\n", command); - result = -ENOTTY; - break; - } - ft1000dev->fAppMsgPend = false; - return result; -} - -/* - *--------------------------------------------------------------------------- - * Function: ft1000_release - * - * Parameters: - * - * Description: - * - * Notes: - * - *--------------------------------------------------------------------------- - */ -static int ft1000_release(struct inode *inode, struct file *file) -{ - struct ft1000_info *info; - struct net_device *dev; - struct ft1000_usb *ft1000dev; - int i; - struct dpram_blk *pdpram_blk; - struct dpram_blk *tmp; - - dev = file->private_data; - info = netdev_priv(dev); - ft1000dev = info->priv; - - if (ft1000_flarion_cnt == 0) { - ft1000dev->appcnt--; - return -EBADF; - } - - /* Search for matching file object */ - for (i = 0; i < MAX_NUM_APP; i++) { - if (ft1000dev->app_info[i].fileobject == &file->f_owner) { - /* pr_debug("Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */ - break; - } - } - - if (i == MAX_NUM_APP) - return 0; - - list_for_each_entry_safe(pdpram_blk, tmp, &ft1000dev->app_info[i].app_sqlist, list) { - pr_debug("Remove and free memory queue up on slow queue\n"); - list_del(&pdpram_blk->list); - ft1000_free_buffer(pdpram_blk, &freercvpool); - } - - /* initialize application information */ - ft1000dev->appcnt--; - pr_debug("appcnt = %d\n", ft1000dev->appcnt); - ft1000dev->app_info[i].fileobject = NULL; - - return 0; -} |