diff options
Diffstat (limited to 'drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c')
| -rw-r--r-- | drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c | 936 |
1 files changed, 936 insertions, 0 deletions
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c b/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c new file mode 100644 index 0000000..87a6487 --- /dev/null +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c @@ -0,0 +1,936 @@ +//--------------------------------------------------------------------------- +// 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> +#include <linux/signal.h> +#include <linux/errno.h> +#include <linux/poll.h> +#include <linux/netdevice.h> +#include <linux/delay.h> + +#include <linux/fs.h> +#include <linux/kmod.h> +#include <linux/ioctl.h> +#include <linux/unistd.h> + +#include "ft1000_usb.h" +//#include "ft1000_ioctl.h" + +static int ft1000_flarion_cnt = 0; + +//need to looking usage of ft1000Handle + +static int ft1000_ChOpen (struct inode *Inode, struct file *File); +static unsigned int ft1000_ChPoll(struct file *file, poll_table *wait); +static long ft1000_ChIoctl(struct file *File, unsigned int Command, + unsigned long Argument); +static int ft1000_ChRelease (struct inode *Inode, struct file *File); + +// Global pointer to device object +static struct ft1000_device *pdevobj[MAX_NUM_CARDS + 2]; +//static devfs_handle_t ft1000Handle[MAX_NUM_CARDS]; + +// 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 = 0; + +// Global variable to indicate that all provisioning data is sent to DSP +//BOOLEAN fProvComplete; + +// +// Table of entry-point routines for char device +// +static struct file_operations ft1000fops = +{ + .unlocked_ioctl = ft1000_ChIoctl, + .poll = ft1000_ChPoll, + .open = ft1000_ChOpen, + .release = ft1000_ChRelease, + .llseek = no_llseek, +}; + + + + +//--------------------------------------------------------------------------- +// Function: exec_mknod +// +// Parameters: +// +// Returns: +// +// Description: +// +// Notes: +// +//--------------------------------------------------------------------------- +static int exec_mknod (void *pdata) +{ + struct ft1000_info *info; + char mjnum[4]; + char minornum[4]; + char temp[32]; + int retcode; +// int i; //aelias [-] reason : unused variable + char *envp[] = { "HOME=/", "PATH=/usr/bin:/bin", NULL }; + char *argv[]={"-m 666",temp,"c",mjnum,minornum,NULL}; + + info = pdata; + DEBUG("ft1000_chdev:exec_mknod is called with major number = %d\n", info->DeviceMajor); + sprintf(temp, "%s%s", "/dev/", info->DeviceName) ; + sprintf(mjnum, "%d", info->DeviceMajor); + sprintf(minornum, "%d", info->CardNumber); + + //char *argv[]={"mknod","-m 666",temp,"c",mjnum,minornum,NULL}; +// char *argv[]={"-m 666",temp,"c",mjnum,minornum,NULL}; + + //for (i=0; i<7;i++) + // DEBUG("argv[%d]=%s\n", i, argv[i]); + + + retcode = call_usermodehelper ("/bin/mknod", argv, envp, 1); + if (retcode) { + DEBUG("ft1000_chdev:exec_mknod failed to make the node: retcode = %d\n", retcode); + } + + + + return retcode; + +} + +//--------------------------------------------------------------------------- +// Function: rm_mknod +// +// Description: This module removes the FT1000 device file +// +//--------------------------------------------------------------------------- +static int rm_mknod (void *pdata) +{ + + struct ft1000_info *info; + //char *argv[4]={"rm", "-f", "/dev/FT1000", NULL}; + int retcode; + char temp[32]; + char *argv[]={"rm", "-f", temp, NULL}; + + info = (struct ft1000_info *)pdata; + DEBUG("ft1000_chdev:rm_mknod is called for device %s\n", info->DeviceName); + sprintf(temp, "%s%s", "/dev/", info->DeviceName) ; + +// char *argv[]={"rm", "-f", temp, NULL}; + + retcode = call_usermodehelper ("/bin/rm", argv, NULL, 1); + if (retcode) { + DEBUG("ft1000_chdev:rm_mknod failed to remove the node: retcode = %d\n", retcode); + } + else + DEBUG("ft1000_chdev:rm_mknod done!\n"); + + + return retcode; + +} +//--------------------------------------------------------------------------- +// 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) ) { + DEBUG("ft1000_get_buffer: No more buffer - %d\n", numofmsgbuf); + ptr = NULL; + } + else { + 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); + } + 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++; + //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(). +// +//--------------------------------------------------------------------------- +int ft1000_CreateDevice(struct ft1000_device *dev) +{ + struct ft1000_info *info = netdev_priv(dev->net); + int result; + int i; + pid_t pid; + + // make a new device name + sprintf(info->DeviceName, "%s%d", "FT100", info->CardNumber); + + // Delete any existing FT1000 node + pid = kernel_thread (rm_mknod,(void *)info, 0); + msleep(1000); + + DEBUG("ft1000_CreateDevice: number of instance = %d\n", ft1000_flarion_cnt); + DEBUG("DeviceCreated = %x\n", info->DeviceCreated); + + //save the device info to global array + pdevobj[info->CardNumber] = dev; + + DEBUG("ft1000_CreateDevice: ******SAVED pdevobj[%d]=%p\n", info->CardNumber, pdevobj[info->CardNumber]); //aelias [+] reason:up + + if (info->DeviceCreated) + { + DEBUG("ft1000_CreateDevice: \"%s\" already registered\n", info->DeviceName); + return -EIO; + } + + + // register the device + DEBUG("ft1000_CreateDevice: \"%s\" device registration\n", info->DeviceName); + info->DeviceMajor = 0; + + result = register_chrdev(info->DeviceMajor, info->DeviceName, &ft1000fops); + if (result < 0) + { + DEBUG("ft1000_CreateDevice: unable to get major %d\n", info->DeviceMajor); + return result; + } + + DEBUG("ft1000_CreateDevice: registered char device \"%s\"\n", info->DeviceName); + + // save a dynamic device major number + if (info->DeviceMajor == 0) + { + info->DeviceMajor = result; + DEBUG("ft1000_PcdCreateDevice: device major = %d\n", info->DeviceMajor); + } + + // Create a thread to call user mode app to mknod + pid = kernel_thread (exec_mknod, (void *)info, 0); + + // initialize application information + info->appcnt = 0; + +// if (ft1000_flarion_cnt == 0) { +// +// DEBUG("Initialize free_buff_lock and freercvpool\n"); +// spin_lock_init(&free_buff_lock); +// +// // initialize a list of buffers to be use for queuing up receive command data +// INIT_LIST_HEAD (&freercvpool); +// +// // create list of free buffers +// for (i=0; i<NUM_OF_FREE_BUFFERS; i++) { +// // Get memory for DPRAM_DATA link list +// pdpram_blk = kmalloc ( sizeof(struct dpram_blk), GFP_KERNEL ); +// // Get a block of memory to store command data +// pdpram_blk->pbuffer = kmalloc ( MAX_CMD_SQSIZE, GFP_KERNEL ); +// // link provisioning data +// list_add_tail (&pdpram_blk->list, &freercvpool); +// } +// numofmsgbuf = NUM_OF_FREE_BUFFERS; +// } + + + // initialize application information + info->appcnt = 0; + for (i=0; i<MAX_NUM_APP; i++) { + info->app_info[i].nTxMsg = 0; + info->app_info[i].nRxMsg = 0; + info->app_info[i].nTxMsgReject = 0; + info->app_info[i].nRxMsgMiss = 0; + info->app_info[i].fileobject = NULL; + info->app_info[i].app_id = i+1; + info->app_info[i].DspBCMsgFlag = 0; + info->app_info[i].NumOfMsg = 0; + init_waitqueue_head(&info->app_info[i].wait_dpram_msg); + INIT_LIST_HEAD (&info->app_info[i].app_sqlist); + } + + + + +// ft1000Handle[info->CardNumber] = devfs_register(NULL, info->DeviceName, DEVFS_FL_AUTO_DEVNUM, 0, 0, +// S_IFCHR | S_IRUGO | S_IWUGO, &ft1000fops, NULL); + + + info->DeviceCreated = TRUE; + ft1000_flarion_cnt++; + + 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_DestroyDevice(struct net_device *dev) +{ + struct ft1000_info *info = netdev_priv(dev); + int result = 0; + pid_t pid; + int i; + struct dpram_blk *pdpram_blk; + struct dpram_blk *ptr; + + DEBUG("ft1000_chdev:ft1000_DestroyDevice called\n"); + + + + if (info->DeviceCreated) + { + ft1000_flarion_cnt--; + unregister_chrdev(info->DeviceMajor, info->DeviceName); + DEBUG("ft1000_DestroyDevice: unregistered device \"%s\", result = %d\n", + info->DeviceName, result); + + pid = kernel_thread (rm_mknod, (void *)info, 0); + + // Make sure we free any memory reserve for slow Queue + for (i=0; i<MAX_NUM_APP; i++) { + while (list_empty(&info->app_info[i].app_sqlist) == 0) { + pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, struct dpram_blk, list); + list_del(&pdpram_blk->list); + ft1000_free_buffer(pdpram_blk, &freercvpool); + + } + wake_up_interruptible(&info->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); + } + } + +// devfs_unregister(ft1000Handle[info->CardNumber]); + + info->DeviceCreated = FALSE; + + pdevobj[info->CardNumber] = NULL; + } + + +} + +//--------------------------------------------------------------------------- +// Function: ft1000_ChOpen +// +// Parameters: +// +// Description: +// +// Notes: +// +//--------------------------------------------------------------------------- +static int ft1000_ChOpen (struct inode *Inode, struct file *File) +{ + struct ft1000_info *info; + int i,num; + + DEBUG("ft1000_ChOpen called\n"); + num = (MINOR(Inode->i_rdev) & 0xf); + DEBUG("ft1000_ChOpen: minor number=%d\n", num); + + for (i=0; i<5; i++) + DEBUG("pdevobj[%d]=%p\n", i, pdevobj[i]); //aelias [+] reason: down + + if ( pdevobj[num] != NULL ) + //info = (struct ft1000_info *)(pdevobj[num]->net->priv); + info = (struct ft1000_info *)netdev_priv(pdevobj[num]->net); + else + { + DEBUG("ft1000_ChOpen: can not find device object %d\n", num); + return -1; + } + + DEBUG("f_owner = %p number of application = %d\n", (&File->f_owner), info->appcnt ); + + // Check if maximum number of application exceeded + if (info->appcnt > MAX_NUM_APP) { + DEBUG("Maximum number of application exceeded\n"); + return -EACCES; + } + + // Search for available application info block + for (i=0; i<MAX_NUM_APP; i++) { + if ( (info->app_info[i].fileobject == NULL) ) { + break; + } + } + + // Fail due to lack of application info block + if (i == MAX_NUM_APP) { + DEBUG("Could not find an application info block\n"); + return -EACCES; + } + + info->appcnt++; + info->app_info[i].fileobject = &File->f_owner; + info->app_info[i].nTxMsg = 0; + info->app_info[i].nRxMsg = 0; + info->app_info[i].nTxMsgReject = 0; + info->app_info[i].nRxMsgMiss = 0; + + File->private_data = pdevobj[num]->net; + + nonseekable_open(Inode, File); + return 0; +} + + +//--------------------------------------------------------------------------- +// Function: ft1000_ChPoll +// +// Parameters: +// +// Description: +// +// Notes: +// +//--------------------------------------------------------------------------- + +static unsigned int ft1000_ChPoll(struct file *file, poll_table *wait) +{ + struct net_device *dev = file->private_data; + struct ft1000_info *info; + int i; + + //DEBUG("ft1000_ChPoll called\n"); + if (ft1000_flarion_cnt == 0) { + DEBUG("FT1000:ft1000_ChPoll called when ft1000_flarion_cnt is zero\n"); + return (-EBADF); + } + + info = (struct ft1000_info *) netdev_priv(dev); + + // Search for matching file object + for (i=0; i<MAX_NUM_APP; i++) { + if ( info->app_info[i].fileobject == &file->f_owner) { + //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id); + break; + } + } + + // Could not find application info block + if (i == MAX_NUM_APP) { + DEBUG("FT1000:ft1000_ChIoctl:Could not find application info block\n"); + return ( -EACCES ); + } + + if (list_empty(&info->app_info[i].app_sqlist) == 0) { + DEBUG("FT1000:ft1000_ChPoll:Message detected in slow queue\n"); + return(POLLIN | POLLRDNORM | POLLPRI); + } + + poll_wait (file, &info->app_info[i].wait_dpram_msg, wait); + //DEBUG("FT1000:ft1000_ChPoll:Polling for data from DSP\n"); + + return (0); +} + +//--------------------------------------------------------------------------- +// Function: ft1000_ChIoctl +// +// Parameters: +// +// Description: +// +// Notes: +// +//--------------------------------------------------------------------------- +static long ft1000_ChIoctl (struct file *File, unsigned int Command, + unsigned long Argument) +{ + void __user *argp = (void __user *)Argument; + struct net_device *dev; + struct ft1000_info *info; + struct ft1000_device *ft1000dev; + int result=0; + int cmd; + int i; + u16 tempword; + unsigned long flags; + struct timeval tv; + IOCTL_GET_VER get_ver_data; + 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; + + //DEBUG("ft1000_ChIoctl called\n"); + + if (ft1000_flarion_cnt == 0) { + DEBUG("FT1000:ft1000_ChIoctl called when ft1000_flarion_cnt is zero\n"); + return (-EBADF); + } + + //DEBUG("FT1000:ft1000_ChIoctl:Command = 0x%x Argument = 0x%8x\n", Command, (u32)Argument); + + dev = File->private_data; + info = (struct ft1000_info *) netdev_priv(dev); + ft1000dev = info->pFt1000Dev; + cmd = _IOC_NR(Command); + //DEBUG("FT1000:ft1000_ChIoctl:cmd = 0x%x\n", cmd); + + // process the command + switch (cmd) { + case IOCTL_REGISTER_CMD: + DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_REGISTER called\n"); + result = get_user(tempword, (__u16 __user*)argp); + if (result) { + 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 ( info->app_info[i].fileobject == &File->f_owner) { + info->app_info[i].DspBCMsgFlag = 1; + DEBUG("FT1000:ft1000_ChIoctl:Registered for broadcast messages\n"); + break; + } + } + } + break; + + case IOCTL_GET_VER_CMD: + DEBUG("FT1000:ft1000_ChIoctl: 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)) ) { + DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n"); + result = -EFAULT; + break; + } + + DEBUG("FT1000:ft1000_ChIoctl:driver version = 0x%x\n",(unsigned int)get_ver_data.drv_ver); + + break; + case IOCTL_CONNECT: + // Connect Message + DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_CONNECT\n"); + ConnectionMsg[79] = 0xfc; + CardSendCommand(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c); + + break; + case IOCTL_DISCONNECT: + // Disconnect Message + DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_DISCONNECT\n"); + ConnectionMsg[79] = 0xfd; + CardSendCommand(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c); + break; + case IOCTL_GET_DSP_STAT_CMD: + //DEBUG("FT1000:ft1000_ChIoctl: 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); + 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, (PUCHAR)&ledStat, FT1000_MAG_DSP_LED_INDX); + get_stat_data.LedStat = ntohs(ledStat); + DEBUG("FT1000:ft1000_ChIoctl: LedStat = 0x%x\n", get_stat_data.LedStat); + ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_CON_STATE, (PUCHAR)&conStat, FT1000_MAG_DSP_CON_STATE_INDX); + get_stat_data.ConStat = ntohs(conStat); + DEBUG("FT1000:ft1000_ChIoctl: 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); + DEBUG("Connection Time = %d\n", (int)get_stat_data.ConTm); + if (copy_to_user(argp, &get_stat_data, sizeof(get_stat_data)) ) { + DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n"); + result = -EFAULT; + break; + } + DEBUG("ft1000_chioctl: GET_DSP_STAT succeed\n"); + break; + case IOCTL_SET_DPRAM_CMD: + { + IOCTL_DPRAM_BLK *dpram_data; + //IOCTL_DPRAM_COMMAND dpram_command; + USHORT qtype; + USHORT msgsz; + struct pseudo_hdr *ppseudo_hdr; + PUSHORT pmsg; + USHORT total_len; + USHORT app_index; + u16 status; + + //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_SET_DPRAM called\n"); + + + if (ft1000_flarion_cnt == 0) { + return (-EBADF); + } + + if (info->DrvMsgPend) { + return (-ENOTTY); + } + + if ( (info->DspAsicReset) || (info->fProvComplete == 0) ) { + return (-EACCES); + } + + info->fAppMsgPend = 1; + + if (info->CardReady) { + + //DEBUG("FT1000:ft1000_ChIoctl: try to SET_DPRAM \n"); + + // Get the length field to see how many bytes to copy + result = get_user(msgsz, (__u16 __user *)argp); + msgsz = ntohs (msgsz); + //DEBUG("FT1000:ft1000_ChIoctl: length of message = %d\n", msgsz); + + if (msgsz > MAX_CMD_SQSIZE) { + DEBUG("FT1000:ft1000_ChIoctl: 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_command.dpram_blk), (PIOCTL_DPRAM_BLK)Argument, msgsz+2) ) { + if ( copy_from_user(&dpram_data, argp, msgsz+2) ) { + DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n"); + result = -EFAULT; + } + else { +#if 0 + // whc - for debugging only + ptr = (char *)&dpram_data; + for (i=0; i<msgsz; i++) { + DEBUG(1,"FT1000:ft1000_ChIoctl: data %d = 0x%x\n", i, *ptr++); + } +#endif + // Check if this message came from a registered application + for (i=0; i<MAX_NUM_APP; i++) { + if ( info->app_info[i].fileobject == &File->f_owner) { + break; + } + } + if (i==MAX_NUM_APP) { + DEBUG("FT1000: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_command.dpram_blk.pseudohdr.qos_class) & 0xff; + qtype = ntohs(dpram_data->pseudohdr.qos_class) & 0xff; + //DEBUG("FT1000_ft1000_ChIoctl: qtype = %d\n", qtype); + if (qtype) { + } + else { + // 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_ChIoctl: 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) { + DEBUG("FT1000:ft1000_ChIoctl:Doorbell not available\n"); + result = -ENOTTY; + kfree(dpram_data); + break; + } + } + } + } + } + + //DEBUG("FT1000_ft1000_ChIoctl: 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 = (PUSHORT)&dpram_command.dpram_blk.pseudohdr; + pmsg = (PUSHORT)&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 = info->app_info[app_index].app_id; + // Calculate new checksum + ppseudo_hdr->checksum = *pmsg++; + //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); + } + pmsg++; + ppseudo_hdr = (struct pseudo_hdr *)pmsg; +#if 0 + ptr = dpram_data; + DEBUG("FT1000:ft1000_ChIoctl: Command Send\n"); + for (i=0; i<total_len; i++) { + DEBUG("FT1000:ft1000_ChIoctl: data %d = 0x%x\n", i, *ptr++); + } +#endif + //dpram_command.extra = 0; + + //CardSendCommand(ft1000dev,(unsigned char*)&dpram_command,total_len+2); + CardSendCommand(ft1000dev,(unsigned short*)dpram_data,total_len+2); + + + info->app_info[app_index].nTxMsg++; + } + else { + result = -EINVAL; + } + } + } + } + else { + DEBUG("FT1000:ft1000_ChIoctl: Card not ready take messages\n"); + result = -EACCES; + } + kfree(dpram_data); + + } + break; + case IOCTL_GET_DPRAM_CMD: + { + struct dpram_blk *pdpram_blk; + IOCTL_DPRAM_BLK __user *pioctl_dpram; + int msglen; + + //DEBUG("FT1000:ft1000_ChIoctl: 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 ( info->app_info[i].fileobject == &File->f_owner) { + //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id); + break; + } + } + + // Could not find application info block + if (i == MAX_NUM_APP) { + DEBUG("FT1000:ft1000_ChIoctl:Could not find application info block\n"); + result = -EBADF; + break; + } + + result = 0; + pioctl_dpram = argp; + if (list_empty(&info->app_info[i].app_sqlist) == 0) { + //DEBUG("FT1000:ft1000_ChIoctl:Message detected in slow queue\n"); + spin_lock_irqsave(&free_buff_lock, flags); + pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, struct dpram_blk, list); + list_del(&pdpram_blk->list); + info->app_info[i].NumOfMsg--; + //DEBUG("FT1000:ft1000_ChIoctl:NumOfMsg for app %d = %d\n", i, info->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_ChIoctl:msg length = %x\n", msglen); + if(copy_to_user (&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen)) + { + DEBUG("FT1000:ft1000_ChIoctl: copy fault occurred\n"); + result = -EFAULT; + break; + } + + ft1000_free_buffer(pdpram_blk, &freercvpool); + result = msglen; + } + //DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DPRAM no message\n"); + } + break; + + default: + DEBUG("FT1000:ft1000_ChIoctl:unknown command: 0x%x\n", Command); + result = -ENOTTY; + break; + } + info->fAppMsgPend = 0; + return result; +} + +//--------------------------------------------------------------------------- +// Function: ft1000_ChRelease +// +// Parameters: +// +// Description: +// +// Notes: +// +//--------------------------------------------------------------------------- +static int ft1000_ChRelease (struct inode *Inode, struct file *File) +{ + struct ft1000_info *info; + struct net_device *dev; + int i; + struct dpram_blk *pdpram_blk; + + DEBUG("ft1000_ChRelease called\n"); + + dev = File->private_data; + info = (struct ft1000_info *) netdev_priv(dev); + + if (ft1000_flarion_cnt == 0) { + info->appcnt--; + return (-EBADF); + } + + // Search for matching file object + for (i=0; i<MAX_NUM_APP; i++) { + if ( info->app_info[i].fileobject == &File->f_owner) { + //DEBUG("FT1000:ft1000_ChIoctl: Message is for AppId = %d\n", info->app_info[i].app_id); + break; + } + } + + if (i==MAX_NUM_APP) + return 0; + + while (list_empty(&info->app_info[i].app_sqlist) == 0) { + DEBUG("Remove and free memory queue up on slow queue\n"); + pdpram_blk = list_entry(info->app_info[i].app_sqlist.next, struct dpram_blk, list); + list_del(&pdpram_blk->list); + ft1000_free_buffer(pdpram_blk, &freercvpool); + } + + // initialize application information + info->appcnt--; + DEBUG("ft1000_chdev:%s:appcnt = %d\n", __FUNCTION__, info->appcnt); + info->app_info[i].fileobject = NULL; + + return 0; +} + |
