/*
* ---------------------------------------------------------------------------
* unifi_resume
*
* Handles a resume request from the SDIO driver.
*
* Arguments:
* ospriv Pointer to OS driver context.
*
* ---------------------------------------------------------------------------
*/
void unifi_resume(void *ospriv)
{
unifi_priv_t *priv = ospriv;
int interfaceTag=0;
int r;
int wol = priv->wol_suspend;
unifi_trace(priv, UDBG1, "unifi_resume: resume SME, enable_wol=%d", enable_wol);
/* The resume causes wifi-on which will re-enable the BH and reinstall the ISR */
r = sme_sys_resume(priv);
if (r) {
unifi_error(priv, "Failed to resume UniFi\n");
}
/* Resume the network interfaces. For the cold resume case, this will
* happen upon reconnection.
*/
if (wol) {
unifi_trace(priv, UDBG1, "unifi_resume: try to enable carrier");
/* need to start all the netdevices*/
for( interfaceTag=0;interfaceTag<CSR_WIFI_NUM_INTERFACES;interfaceTag++) {
netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag];
unifi_trace(priv, UDBG1, "unifi_resume: interfaceTag %d netdev_registered %d mode %d\n",
interfaceTag, interfacePriv->netdev_registered, interfacePriv->interfaceMode);
if (interfacePriv->netdev_registered == 1)
{
netif_carrier_on(priv->netdev[interfaceTag]);
UF_NETIF_TX_START_ALL_QUEUES(priv->netdev[interfaceTag]);
}
}
/* Kick the BH thread (with reason=host) to poll for data that may have
* arrived during a powered suspend. This caters for the case where the SME
* doesn't interact with the chip (e.g install autonomous scans) during resume.
*/
unifi_send_signal(priv->card, NULL, 0, NULL);
}
} /* unifi_resume() */
int unifi_cfg_power(unifi_priv_t *priv, unsigned char *arg)
{
unifi_cfg_power_t cfg_power;
int rc;
int wol;
if (get_user(cfg_power, (unifi_cfg_power_t*)(((unifi_cfg_command_t*)arg) + 1))) {
unifi_error(priv, "UNIFI_CFG: Failed to get the argument\n");
return -EFAULT;
}
switch (cfg_power) {
case UNIFI_CFG_POWER_OFF:
priv->wol_suspend = (enable_wol == UNIFI_WOL_OFF) ? FALSE : TRUE;
rc = sme_sys_suspend(priv);
if (rc) {
return rc;
}
break;
case UNIFI_CFG_POWER_ON:
wol = priv->wol_suspend;
rc = sme_sys_resume(priv);
if (rc) {
return rc;
}
if (wol) {
/* Kick the BH to ensure pending transfers are handled when
* a suspend happened with card powered.
*/
unifi_send_signal(priv->card, NULL, 0, NULL);
}
break;
default:
unifi_error(priv, "WIFI POWER: Unknown value.\n");
return -EINVAL;
}
return 0;
}