/**
* \fn wlanDrvIf_Stop
* \brief Stop driver
*
* Called by network stack upon closing network interface (ifconfig down).
* Can also be called from user application or CLI for flight mode.
* Stop the driver and turn off the device.
*
* \note
* \param dev - The driver network-interface handle
* \return 0 (OK)
* \sa wlanDrvIf_Start
*/
int wlanDrvIf_Stop (struct net_device *dev)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)NETDEV_GET_PRIVATE(dev);
ti_dprintf (TIWLAN_LOG_OTHER, "wlanDrvIf_Stop()\n");
if (DRV_STATE_FAILED == drv->tCommon.eDriverState)
{
return -ENODEV;
}
/*
* Insert Stop command in DrvMain action queue, request driver scheduling
* and wait for Stop process completion.
*/
os_printf("%s LINE %d\n", __func__, __LINE__);
os_wake_lock_timeout_enable(drv);
os_printf("%s LINE %d\n", __func__, __LINE__);
if (TI_OK != drvMain_InsertAction (drv->tCommon.hDrvMain, ACTION_TYPE_STOP))
{
return -ENODEV;
}
os_printf("%s\n", __func__);
return 0;
}
/**
* \fn wlanDrvIf_Start
* \brief Start driver
*
* Called by network stack upon opening network interface (ifconfig up).
* Can also be called from user application or CLI for flight mode.
* Start the driver initialization process up to OPERATIONAL state.
*
* \note
* \param dev - The driver network-interface handle
* \return 0 if succeeded, error if driver not available
* \sa wlanDrvIf_Stop
*/
int wlanDrvIf_Start (struct net_device *dev)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)NETDEV_GET_PRIVATE(dev);
ti_dprintf (TIWLAN_LOG_OTHER, "wlanDrvIf_Start()\n");
printk("%s\n", __func__);
if (!drv->tCommon.hDrvMain)
{
ti_dprintf (TIWLAN_LOG_ERROR, "wlanDrvIf_Start() Driver not created!\n");
return -ENODEV;
}
if (DRV_STATE_FAILED == drv->tCommon.eDriverState)
{
ti_dprintf (TIWLAN_LOG_ERROR, "wlanDrvIf_Start() Driver failed!\n");
return -ENODEV;
}
/*
* Insert Start command in DrvMain action queue, request driver scheduling
* and wait for action completion (all init process).
*/
os_wake_lock_timeout_enable(drv);
if (TI_OK != drvMain_InsertAction (drv->tCommon.hDrvMain, ACTION_TYPE_START))
{
return -ENODEV;
}
return 0;
}
TI_BOOL os_receivePacket(TI_HANDLE OsContext, void *pRxDesc ,void *pPacket, TI_UINT16 Length)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)OsContext;
unsigned char *pdata = (unsigned char *)((TI_UINT32)pPacket & ~(TI_UINT32)0x3);
rx_head_t *rx_head = (rx_head_t *)(pdata - WSPI_PAD_BYTES - RX_HEAD_LEN_ALIGNED);
struct sk_buff *skb = rx_head->skb;
#ifdef TI_DBG
if ((TI_UINT32)pPacket & 0x3) {
if ((TI_UINT32)pPacket - (TI_UINT32)skb->data != 2) {
printk("os_receivePacket() address error skb=0x%x skb->data=0x%x pPacket=0x%x !!!\n",(int)skb, (int)skb->data, (int)pPacket);
}
} else {
if ((TI_UINT32)skb->data != (TI_UINT32)pPacket) {
printk("os_receivePacket() address error skb=0x%x skb->data=0x%x pPacket=0x%x !!!\n",(int)skb, (int)skb->data, (int)pPacket);
}
}
if (Length != RX_ETH_PKT_LEN(pPacket)) {
printk("os_receivePacket() Length=%d != RX_ETH_PKT_LEN(pPacket)=%d!!!\n",(int)Length, RX_ETH_PKT_LEN(pPacket));
}
#endif
/*
printk("-->> os_receivePacket() pPacket=0x%x Length=%d skb=0x%x skb->data=0x%x skb->head=0x%x skb->len=%d\n",
(int)pPacket, (int)Length, (int)skb, (int)skb->data, (int)skb->head, (int)skb->len);
*/
/* Use skb_reserve, it updates both skb->data and skb->tail. */
skb->data = RX_ETH_PKT_DATA(pPacket);
skb->tail = skb->data;
skb_put(skb, RX_ETH_PKT_LEN(pPacket));
/*
printk("-->> os_receivePacket() skb=0x%x skb->data=0x%x skb->head=0x%x skb->len=%d\n",
(int)skb, (int)skb->data, (int)skb->head, (int)skb->len);
*/
ti_nodprintf(TIWLAN_LOG_INFO, "os_receivePacket - Received EAPOL len-%d\n", WBUF_LEN(pWbuf));
skb->dev = drv->netdev;
skb->protocol = eth_type_trans(skb, drv->netdev);
skb->ip_summed = CHECKSUM_NONE;
drv->stats.rx_packets++;
drv->stats.rx_bytes += skb->len;
/* Send the skb to the TCP stack.
* it responsibly of the Linux kernel to free the skb
*/
{
CL_TRACE_START_L1();
os_wake_lock_timeout_enable(drv);
netif_rx_ni(skb);
/* Note: Don't change this trace (needed to exclude OS processing from Rx CPU utilization) */
CL_TRACE_END_L1("tiwlan_drv.ko", "OS", "RX", "");
}
return TI_TRUE;
}
TI_INT32 IPC_EventSend(TI_HANDLE hAdapter, TI_UINT8* pEvData, TI_UINT32 EvDataSize)
{
struct sk_buff *skb;
int res;
TWlanDrvIfObj *drv = (TWlanDrvIfObj *) hAdapter;
TI_UINT32 realSize = 0;
TI_UINT32 msgSize;
struct nlmsghdr *nlh;
TI_UINT8 *msg;
os_wake_lock_timeout_enable(drv);
/* This event is targetted to the OS process Id 0 is not a valid pId for LINUX*/
if ((( IPC_EVENT_PARAMS *) pEvData) ->uProcessID == 0)
{
(( IPC_EVENT_PARAMS *) pEvData) ->pfEventCallback(( IPC_EV_DATA *) pEvData);
return 0;
}
/* set the payload size */
msgSize = (( IPC_EV_DATA *) pEvData) ->uBufferSize + offsetof(IPC_EV_DATA,uBuffer);
/* add the netlink header size */
realSize = NLMSG_SPACE(msgSize);
/* allocate the complete message */
skb = dev_alloc_skb(realSize);
if (!skb) {
printk(KERN_ERR "Failed to allocate new skb with size=%u.\n",realSize);
return -1;
}
/* set the netlink header params */
nlh = NLMSG_PUT(skb, 0, 0, NLMSG_DONE, realSize - sizeof(*nlh));
/* get the payload pointer */
msg = (char *)NLMSG_DATA(nlh);
/* copy the data to the payload */
memcpy(msg,pEvData,msgSize);
NETLINK_CB(skb).pid = 0; /* from kernel */
#define RTMGRP_LINK 1
NETLINK_CB(skb).dst_group = RTMGRP_LINK;
/* send the message*/
res = netlink_unicast(drv->wl_sock, skb, (( IPC_EVENT_PARAMS *) pEvData) ->uProcessID, MSG_DONTWAIT);
/* Sanity checks. As far as we're concerned this error is unrecovarable.*/
if (res >= 0)
{
return 0;
}
nlmsg_failure:
ti_dprintf(TIWLAN_LOG_INFO,"IPC kernel: did not send the netlink message\n");
return -1;
}
/**
* \fn wlanDrvIf_Start
* \brief Start driver
*
* Called by network stack upon opening network interface (ifconfig up).
* Can also be called from user application or CLI for flight mode.
* Start the driver initialization process up to OPERATIONAL state.
*
* \note
* \param dev - The driver network-interface handle
* \return 0 if succeeded, error if driver not available
* \sa wlanDrvIf_Stop
*/
int wlanDrvIf_Start (struct net_device *dev)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)NETDEV_GET_PRIVATE(dev);
ti_dprintf (TIWLAN_LOG_OTHER, "wlanDrvIf_Start()\n");
if (!drv->tCommon.hDrvMain)
{
ti_dprintf (TIWLAN_LOG_ERROR, "wlanDrvIf_Start() Driver not created!\n");
return -ENODEV;
}
/*before inserting an action - check driver state*/
if (DRV_STATE_FAILED == drv->tCommon.eDriverState)
{
return -ENODEV;
}
os_wake_lock_timeout_enable(drv);
drvMain_InsertAction (drv->tCommon.hDrvMain, ACTION_TYPE_START);
return 0;
}