-//---------------------------------------------------------------------------
-// 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
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* 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
+*
+*---------------------------------------------------------------------------
+*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
unsigned long argument);
static int ft1000_release (struct inode *inode, struct file *file);
-// List to free receive command buffer pool
+/* List to free receive command buffer pool */
struct list_head freercvpool;
-// lock to arbitrate free buffer list for receive command data
+/* lock to arbitrate free buffer list for receive command data */
spinlock_t free_buff_lock;
int numofmsgbuf = 0;
-//
-// Table of entry-point routines for char device
-//
+/*
+* Table of entry-point routines for char device
+*/
static const struct file_operations ft1000fops =
{
.unlocked_ioctl = ft1000_ioctl,
.llseek = no_llseek,
};
-//---------------------------------------------------------------------------
-// Function: ft1000_get_buffer
-//
-// Parameters:
-//
-// Returns:
-//
-// Description:
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/*
+---------------------------------------------------------------------------
+* 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
+ /* Check if buffer is available */
if ( list_empty(bufflist) ) {
DEBUG("ft1000_get_buffer: No more buffer - %d\n", numofmsgbuf);
ptr = NULL;
numofmsgbuf--;
ptr = list_entry(bufflist->next, struct dpram_blk, list);
list_del(&ptr->list);
- //DEBUG("ft1000_get_buffer: number of free msg buffers = %d\n", numofmsgbuf);
+ /* DEBUG("ft1000_get_buffer: number of free msg buffers = %d\n", numofmsgbuf); */
}
spin_unlock_irqrestore(&free_buff_lock, flags);
-//---------------------------------------------------------------------------
-// Function: ft1000_free_buffer
-//
-// Parameters:
-//
-// Returns:
-//
-// Description:
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* 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
+ /* Put memory back to list */
list_add_tail(&pdpram_blk->list, plist);
numofmsgbuf++;
- //DEBUG("ft1000_free_buffer: number of free msg buffers = %d\n", numofmsgbuf);
+ /*DEBUG("ft1000_free_buffer: 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().
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* 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;
struct dentry *dir, *file;
struct ft1000_debug_dirs *tmp;
- // make a new device name
+ /* make a new device name */
sprintf(dev->DeviceName, "%s%d", "FT1000_", dev->CardNumber);
DEBUG("%s: number of instance = %d\n", __func__, ft1000_flarion_cnt);
}
- // register the device
+ /* register the device */
DEBUG("%s: \"%s\" debugfs device registration\n", __func__, dev->DeviceName);
tmp = kmalloc(sizeof(struct ft1000_debug_dirs), GFP_KERNEL);
DEBUG("%s: registered debugfs directory \"%s\"\n", __func__, dev->DeviceName);
- // initialize application information
+ /* initialize application information */
dev->appcnt = 0;
for (i=0; i<MAX_NUM_APP; i++) {
dev->app_info[i].nTxMsg = 0;
return result;
}
-//---------------------------------------------------------------------------
-// Function: ft1000_DestroyDeviceDEBUG
-//
-// Parameters: dev - pointer to adapter object
-//
-// Description: Destroys a private char device.
-//
-// Notes: Only called by cleanup_module().
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* 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);
DEBUG("%s: unregistered device \"%s\"\n", __func__,
dev->DeviceName);
- // Make sure we free any memory reserve for slow Queue
+ /* 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);
wake_up_interruptible(&dev->app_info[i].wait_dpram_msg);
}
- // Remove buffer allocated for receive command data
+ /* 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);
}
-//---------------------------------------------------------------------------
-// Function: ft1000_open
-//
-// Parameters:
-//
-// Description:
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* Function: ft1000_open
+*
+* Parameters:
+*
+* Description:
+*
+* Notes:
+*
+*---------------------------------------------------------------------------
+*/
static int ft1000_open (struct inode *inode, struct file *file)
{
struct ft1000_info *info;
DEBUG("f_owner = %p number of application = %d\n", (&file->f_owner), dev->appcnt );
- // Check if maximum number of application exceeded
+ /* Check if maximum number of application exceeded */
if (dev->appcnt > MAX_NUM_APP) {
DEBUG("Maximum number of application exceeded\n");
return -EACCES;
}
- // Search for available application info block
+ /* 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
+ /* Fail due to lack of application info block */
if (i == MAX_NUM_APP) {
DEBUG("Could not find an application info block\n");
return -EACCES;
}
-//---------------------------------------------------------------------------
-// Function: ft1000_poll_dev
-//
-// Parameters:
-//
-// Description:
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* Function: ft1000_poll_dev
+*
+* Parameters:
+*
+* Description:
+*
+* Notes:
+*
+*---------------------------------------------------------------------------
+*/
static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait)
{
struct ft1000_usb *dev = info->priv;
int i;
- //DEBUG("ft1000_poll_dev called\n");
+ /* DEBUG("ft1000_poll_dev called\n"); */
if (ft1000_flarion_cnt == 0) {
DEBUG("FT1000:ft1000_poll_dev called when ft1000_flarion_cnt is zero\n");
return (-EBADF);
}
- // Search for matching file object
+ /* Search for matching file object */
for (i=0; i<MAX_NUM_APP; i++) {
if ( dev->app_info[i].fileobject == &file->f_owner) {
- //DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", dev->app_info[i].app_id);
+ /* DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", dev->app_info[i].app_id); */
break;
}
}
- // Could not find application info block
+ /* Could not find application info block */
if (i == MAX_NUM_APP) {
DEBUG("FT1000:ft1000_ioctl:Could not find application info block\n");
return ( -EACCES );
}
poll_wait (file, &dev->app_info[i].wait_dpram_msg, wait);
- //DEBUG("FT1000:ft1000_poll_dev:Polling for data from DSP\n");
+ /* DEBUG("FT1000:ft1000_poll_dev:Polling for data from DSP\n"); */
return (0);
}
-//---------------------------------------------------------------------------
-// Function: ft1000_ioctl
-//
-// Parameters:
-//
-// Description:
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* Function: ft1000_ioctl
+*
+* Parameters:
+*
+* Description:
+*
+* Notes:
+*
+*---------------------------------------------------------------------------
+*/
static long ft1000_ioctl (struct file *file, unsigned int command,
unsigned long argument)
{
unsigned short ledStat=0;
unsigned short conStat=0;
- //DEBUG("ft1000_ioctl called\n");
+ /* DEBUG("ft1000_ioctl called\n"); */
if (ft1000_flarion_cnt == 0) {
DEBUG("FT1000:ft1000_ioctl called when ft1000_flarion_cnt is zero\n");
return (-EBADF);
}
- //DEBUG("FT1000:ft1000_ioctl:command = 0x%x argument = 0x%8x\n", command, (u32)argument);
+ /* DEBUG("FT1000:ft1000_ioctl:command = 0x%x argument = 0x%8x\n", command, (u32)argument); */
info = file->private_data;
ft1000dev = info->priv;
cmd = _IOC_NR(command);
- //DEBUG("FT1000:ft1000_ioctl:cmd = 0x%x\n", cmd);
+ /* DEBUG("FT1000:ft1000_ioctl:cmd = 0x%x\n", cmd); */
- // process the command
+ /* process the command */
switch (cmd) {
case IOCTL_REGISTER_CMD:
DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_REGISTER called\n");
break;
}
if (tempword == DSPBCMSGID) {
- // Search for matching file object
+ /* 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;
break;
case IOCTL_CONNECT:
- // Connect Message
+ /* Connect Message */
DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_CONNECT\n");
ConnectionMsg[79] = 0xfc;
card_send_command(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
break;
case IOCTL_DISCONNECT:
- // Disconnect Message
+ /* Disconnect Message */
DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_DISCONNECT\n");
ConnectionMsg[79] = 0xfd;
card_send_command(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
break;
case IOCTL_GET_DSP_STAT_CMD:
- //DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DSP_STAT called\n");
+ /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DSP_STAT called\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);
case IOCTL_SET_DPRAM_CMD:
{
IOCTL_DPRAM_BLK *dpram_data = NULL;
- //IOCTL_DPRAM_COMMAND dpram_command;
+ /* IOCTL_DPRAM_COMMAND dpram_command; */
u16 qtype;
u16 msgsz;
struct pseudo_hdr *ppseudo_hdr;
u16 app_index;
u16 status;
- //DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_SET_DPRAM called\n");
+ /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_SET_DPRAM called\n");*/
if (ft1000_flarion_cnt == 0) {
if (info->CardReady) {
- //DEBUG("FT1000:ft1000_ioctl: try to SET_DPRAM \n");
+ /* DEBUG("FT1000:ft1000_ioctl: try to SET_DPRAM \n"); */
- // Get the length field to see how many bytes to copy
+ /* Get the length field to see how many bytes to copy */
result = get_user(msgsz, (__u16 __user *)argp);
msgsz = ntohs (msgsz);
- //DEBUG("FT1000:ft1000_ioctl: length of message = %d\n", msgsz);
+ /* DEBUG("FT1000:ft1000_ioctl: length of message = %d\n", msgsz); */
if (msgsz > MAX_CMD_SQSIZE) {
DEBUG("FT1000:ft1000_ioctl: bad message length = %d\n", msgsz);
result = -EFAULT;
}
else {
- // Check if this message came from a registered application
+ /* 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;
}
app_index = i;
- // Check message qtype type which is the lower byte within qos_class
+ /* Check message qtype type which is the lower byte within qos_class */
qtype = ntohs(dpram_data->pseudohdr.qos_class) & 0xff;
- //DEBUG("FT1000_ft1000_ioctl: qtype = %d\n", qtype);
+ /* DEBUG("FT1000_ft1000_ioctl: qtype = %d\n", qtype); */
if (qtype) {
}
else {
- // Put message into Slow Queue
- // Only put a message into the DPRAM if msg doorbell is available
+ /* 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);
- //DEBUG("FT1000_ft1000_ioctl: READ REGISTER tempword=%x\n", tempword);
+ /* DEBUG("FT1000_ft1000_ioctl: READ REGISTER tempword=%x\n", tempword); */
if (tempword & FT1000_DB_DPRAM_TX) {
- // Suspend for 2ms and try again due to DSP doorbell busy
+ /* 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
+ /* 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
+ /* 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) {
}
}
- //DEBUG("FT1000_ft1000_ioctl: finished reading register\n");
+ /*DEBUG("FT1000_ft1000_ioctl: finished reading register\n"); */
- // Make sure we are within the limits of the slow queue memory limitation
+ /* 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
+ /* 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;
total_len++;
}
- // Insert slow queue sequence number
+ /* Insert slow queue sequence number */
ppseudo_hdr->seq_num = info->squeseqnum++;
ppseudo_hdr->portsrc = ft1000dev->app_info[app_index].app_id;
- // Calculate new checksum
+ /* Calculate new checksum */
ppseudo_hdr->checksum = *pmsg++;
- //DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum);
+ /* DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum); */
for (i=1; i<7; i++) {
ppseudo_hdr->checksum ^= *pmsg++;
- //DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum);
+ /* DEBUG("checksum = 0x%x\n", ppseudo_hdr->checksum); */
}
pmsg++;
ppseudo_hdr = (struct pseudo_hdr *)pmsg;
IOCTL_DPRAM_BLK __user *pioctl_dpram;
int msglen;
- //DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM called\n");
+ /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM called\n"); */
if (ft1000_flarion_cnt == 0) {
return (-EBADF);
}
- // Search for matching file object
+ /* Search for matching file object */
for (i=0; i<MAX_NUM_APP; i++) {
if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
- //DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id);
+ /*DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
break;
}
}
- // Could not find application info block
+ /* Could not find application info block */
if (i == MAX_NUM_APP) {
DEBUG("FT1000:ft1000_ioctl:Could not find application info block\n");
result = -EBADF;
result = 0;
pioctl_dpram = argp;
if (list_empty(&ft1000dev->app_info[i].app_sqlist) == 0) {
- //DEBUG("FT1000:ft1000_ioctl:Message detected in slow queue\n");
+ /* DEBUG("FT1000:ft1000_ioctl: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--;
- //DEBUG("FT1000:ft1000_ioctl:NumOfMsg for app %d = %d\n", i, ft1000dev->app_info[i].NumOfMsg);
+ /* DEBUG("FT1000:ft1000_ioctl: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);
- //DEBUG("FT1000:ft1000_ioctl:msg length = %x\n", msglen);
+ /* DEBUG("FT1000:ft1000_ioctl:msg length = %x\n", msglen); */
if(copy_to_user (&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen))
{
DEBUG("FT1000:ft1000_ioctl: copy fault occurred\n");
- result = -EFAULT;
- break;
+ result = -EFAULT;
+ break;
}
ft1000_free_buffer(pdpram_blk, &freercvpool);
result = msglen;
}
- //DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM no message\n");
+ /* DEBUG("FT1000:ft1000_ioctl: IOCTL_FT1000_GET_DPRAM no message\n"); */
}
break;
return result;
}
-//---------------------------------------------------------------------------
-// Function: ft1000_release
-//
-// Parameters:
-//
-// Description:
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/*
+*---------------------------------------------------------------------------
+* Function: ft1000_release
+*
+* Parameters:
+*
+* Description:
+*
+* Notes:
+*
+*---------------------------------------------------------------------------
+*/
static int ft1000_release (struct inode *inode, struct file *file)
{
struct ft1000_info *info;
return (-EBADF);
}
- // Search for matching file object
+ /* Search for matching file object */
for (i=0; i<MAX_NUM_APP; i++) {
if ( ft1000dev->app_info[i].fileobject == &file->f_owner) {
- //DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id);
+ /* DEBUG("FT1000:ft1000_ioctl: Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
break;
}
}
ft1000_free_buffer(pdpram_blk, &freercvpool);
}
- // initialize application information
+ /* initialize application information */
ft1000dev->appcnt--;
DEBUG("ft1000_chdev:%s:appcnt = %d\n", __FUNCTION__, ft1000dev->appcnt);
ft1000dev->app_info[i].fileobject = NULL;
return 0;
}
-
projects / deliverable / linux.git / commitdiff
