/*
* ---------------------------------------------------------------------------
* unifi_suspend
*
* Handles a suspend request from the SDIO driver.
*
* Arguments:
* ospriv Pointer to OS driver context.
*
* ---------------------------------------------------------------------------
*/
void unifi_suspend(void *ospriv)
{
unifi_priv_t *priv = ospriv;
int interfaceTag=0;
/* For powered suspend, tell the resume's wifi_on() not to reinit UniFi */
priv->wol_suspend = (enable_wol == UNIFI_WOL_OFF) ? FALSE : TRUE;
unifi_trace(priv, UDBG1, "unifi_suspend: wol_suspend %d, enable_wol %d",
priv->wol_suspend, enable_wol );
/* Stop network traffic. */
/* need to stop all the netdevices*/
for( interfaceTag=0;interfaceTag<CSR_WIFI_NUM_INTERFACES;interfaceTag++)
{
netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag];
if (interfacePriv->netdev_registered == 1)
{
if( priv->wol_suspend ) {
unifi_trace(priv, UDBG1, "unifi_suspend: Don't netif_carrier_off");
} else {
unifi_trace(priv, UDBG1, "unifi_suspend: netif_carrier_off");
netif_carrier_off(priv->netdev[interfaceTag]);
}
UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[interfaceTag]);
}
}
unifi_trace(priv, UDBG1, "unifi_suspend: suspend SME");
sme_sys_suspend(priv);
} /* unifi_suspend() */
/*
* ---------------------------------------------------------------------------
* unregister_unifi_sdio
*
* Call from SDIO driver when it detects that UniFi has been removed.
*
* Arguments:
* bus_id Number of the card that was ejected.
*
* Returns:
* None.
* ---------------------------------------------------------------------------
*/
static void
unregister_unifi_sdio(int bus_id)
{
unifi_priv_t *priv;
int interfaceTag=0;
u8 reason = CONFIG_IND_EXIT;
if ((bus_id < 0) || (bus_id >= MAX_UNIFI_DEVS)) {
unifi_error(NULL, "unregister_unifi_sdio: invalid device %d\n",
bus_id);
return;
}
priv = Unifi_instances[bus_id];
if (priv == NULL) {
unifi_error(priv, "unregister_unifi_sdio: device %d is not registered\n",
bus_id);
func_exit();
return;
}
/* Stop the network traffic before freeing the core. */
for(interfaceTag=0;interfaceTag<priv->totalInterfaceCount;interfaceTag++)
{
netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag];
if(interfacePriv->netdev_registered)
{
netif_carrier_off(priv->netdev[interfaceTag]);
UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[interfaceTag]);
}
}
#ifdef CSR_NATIVE_LINUX
/*
* If the unifi thread was started, signal it to stop. This
* should cause any userspace processes with open unifi device to
* close them.
*/
uf_stop_thread(priv, &priv->bh_thread);
/* Unregister the interrupt handler */
if (csr_sdio_linux_remove_irq(priv->sdio)) {
unifi_notice(priv,
"csr_sdio_linux_remove_irq failed to talk to card.\n");
}
/* Ensure no MLME functions are waiting on a the mlme_event semaphore. */
uf_abort_mlme(priv);
#endif /* CSR_NATIVE_LINUX */
#ifdef CSR_WIFI_NAPI_ENABLE
{
int i;
for (i = 0; i < CSR_WIFI_NUM_INTERFACES; i++)
{
napi_deinit(&priv->interfacePriv[i]->napi, &priv->interfacePriv[i]->napi_skb_list);
}
}
#endif
ul_log_config_ind(priv, &reason, sizeof(u8));
/* Deregister the UDI hook from the core. */
unifi_remove_udi_hook(priv->card, logging_handler);
uf_put_instance(bus_id);
/*
* Wait until the device is cleaned up. i.e., when all userspace
* processes have closed any open unifi devices.
*/
wait_event(Unifi_cleanup_wq, In_use[bus_id] == UNIFI_DEV_CLEANUP);
unifi_trace(NULL, UDBG5, "Received clean up event\n");
/* Now we can free the private context and the char device nodes */
cleanup_unifi_sdio(priv);
} /* unregister_unifi_sdio() */
