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/*
* ipc_sta.c
*
* Copyright 2001-2009 Texas Instruments, Inc. - http://www.ti.com/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/****************************************************************************
*
* MODULE: IPC_STA.c
*
* PURPOSE:
*
* DESCRIPTION:
* ============
*
*
****************************************************************************/
/* includes */
/************/
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <linux/rtnetlink.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <linux/wireless.h>
#include "cu_osapi.h"
#include "oserr.h"
#include "STADExternalIf.h"
#include "ipc_sta.h"
/* defines */
/***********/
/* local types */
/***************/
/* Module control block */
typedef struct IpcSta_t
{
struct iwreq wext_req;
ti_private_cmd_t private_cmd;
S32 STA_socket;
} IpcSta_t;
/* local variables */
/*******************/
/* local fucntions */
/*******************/
/*
* IpcSta_Sockets_Open - Open a socket.
* Depending on the protocol present, open the right socket. The socket
* will allow us to talk to the driver.
*/
static S32 IpcSta_Sockets_Open(VOID)
{
static const S32 families[] = {
AF_INET, AF_IPX, AF_APPLETALK
};
U32 i;
S32 sock;
/*
* Now pick any (exisiting) useful socket family for generic queries
* Note : don't open all the socket, only returns when one matches,
* all protocols might not be valid.
* Workaround by Jim Kaba <jkaba@sarnoff.com>
* Note : in 2001% of the case, we will just open the inet_sock.
* The remaining 2002% case are not fully correct...
*/
/* Try all families we support */
for(i = 0; i < sizeof(families)/sizeof(int); ++i)
{
/* Try to open the socket, if success returns it */
sock = socket(families[i], SOCK_DGRAM, 0);
if(sock >= 0)
return sock;
}
return -1;
}
/*
* IpcSta_Sockets_Close - Close the socket used for ioctl.
*/
static inline VOID IpcSta_Sockets_Close(S32 skfd)
{
close(skfd);
}
/* functions */
/*************/
THandle IpcSta_Create(const PS8 device_name)
{
IpcSta_t* pIpcSta = (IpcSta_t*)os_MemoryCAlloc(sizeof(IpcSta_t), sizeof(U8));
if(pIpcSta == NULL)
{
os_error_printf(CU_MSG_ERROR, (PS8)"ERROR - IpcSta_Create - cant allocate control block\n");
return NULL;
}
/* open the socket to the driver */
pIpcSta->STA_socket = IpcSta_Sockets_Open();
if(pIpcSta->STA_socket == -1)
{
os_error_printf(CU_MSG_ERROR, (PS8)"ERROR - IpcSta_Create - cant open socket for communication with the driver\n");
return NULL;
}
/* set the driver name */
os_strcpy((PS8)pIpcSta->wext_req.ifr_ifrn.ifrn_name, device_name);
return pIpcSta;
}
VOID IpcSta_Destroy(THandle hIpcSta)
{
IpcSta_t* pIpcSta = (IpcSta_t*)hIpcSta;
/* close the socket to the driver */
IpcSta_Sockets_Close(pIpcSta->STA_socket);
os_MemoryFree(pIpcSta);
}
S32 IPC_STA_Private_Send(THandle hIpcSta, U32 ioctl_cmd, PVOID bufIn, U32 sizeIn,
PVOID bufOut, U32 sizeOut)
{
IpcSta_t* pIpcSta = (IpcSta_t*)hIpcSta;
S32 res;
pIpcSta ->private_cmd.cmd = ioctl_cmd;
if(bufOut == NULL)
pIpcSta ->private_cmd.flags = PRIVATE_CMD_SET_FLAG;
else
pIpcSta ->private_cmd.flags = PRIVATE_CMD_GET_FLAG;
pIpcSta ->private_cmd.in_buffer = bufIn;
pIpcSta ->private_cmd.in_buffer_len = sizeIn;
pIpcSta ->private_cmd.out_buffer = bufOut;
pIpcSta ->private_cmd.out_buffer_len = sizeOut;
pIpcSta->wext_req.u.data.pointer = &pIpcSta->private_cmd;
pIpcSta->wext_req.u.data.length = sizeof(ti_private_cmd_t);
pIpcSta->wext_req.u.data.flags = 0;
res = ioctl(pIpcSta->STA_socket, SIOCIWFIRSTPRIV, &pIpcSta->wext_req);
if(res != OK)
{
os_error_printf(CU_MSG_ERROR, (PS8)"ERROR - IPC_STA_Private_Send - error sending Wext private IOCTL to STA driver (ioctl_cmd = %x, res = %d, errno = %d)\n", ioctl_cmd,res,errno);
return EOALERR_IPC_STA_ERROR_SENDING_WEXT;
}
return OK;
}
S32 IPC_STA_Wext_Send(THandle hIpcSta, U32 wext_request_id, PVOID p_iwreq_data, U32 len)
{
IpcSta_t* pIpcSta = (IpcSta_t*)hIpcSta;
S32 res;
os_memcpy(&pIpcSta->wext_req.u.data, p_iwreq_data, len);
res = ioctl(pIpcSta->STA_socket, wext_request_id, &pIpcSta->wext_req);
if(res != OK)
{
os_error_printf(CU_MSG_ERROR, (PS8)"ERROR - IPC_STA_Wext_Send - error sending Wext IOCTL to STA driver (wext_request_id = 0x%x, res = %d, errno = %d)\n",wext_request_id,res,errno);
return EOALERR_IPC_STA_ERROR_SENDING_WEXT;
}
os_memcpy(p_iwreq_data, &pIpcSta->wext_req.u.data, len);
return OK;
}
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