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brcmfmac: add virtual interface support in brcmf_cfg80211_suspend()

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With multiple interfaces suspend will need to iterate over all and
bring down the link.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2012-10-22 13:55:39 -07:00 committed by John W. Linville
parent ba40d16696
commit 7d641072c3
1 changed files with 28 additions and 25 deletions
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53
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
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@ -3008,46 +3008,49 @@ static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct net_device *ndev = cfg_to_ndev(cfg);
struct brcmf_if *ifp = netdev_priv(ndev);
struct brcmf_cfg80211_vif *vif;
WL_TRACE("Enter\n");
/*
* Check for BRCMF_VIF_STATUS_READY before any function call which
* could result is bus access. Don't block the suspend for
* any driver error conditions
* if the primary net_device is not READY there is nothing
* we can do but pray resume goes smoothly.
*/
vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
if (!check_vif_up(vif))
goto exit;
/*
* While going to suspend if associated with AP disassociate
* from AP to save power while system is in suspended state
*/
if ((test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state) ||
test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) &&
check_vif_up(ifp->vif)) {
WL_INFO("Disassociating from AP"
" while entering suspend state\n");
brcmf_link_down(cfg);
list_for_each_entry(vif, &cfg->vif_list, list) {
if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
continue;
/*
* Make sure WPA_Supplicant receives all the event
* generated due to DISASSOC call to the fw to keep
* the state fw and WPA_Supplicant state consistent
* While going to suspend if associated with AP disassociate
* from AP to save power while system is in suspended state
*/
brcmf_delay(500);
if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state) ||
test_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state)) {
WL_INFO("Disassociating from AP before suspend\n");
brcmf_link_down(cfg);
/* Make sure WPA_Supplicant receives all the event
* generated due to DISASSOC call to the fw to keep
* the state fw and WPA_Supplicant state consistent
*/
brcmf_delay(500);
}
}
if (test_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state))
/* end any scanning */
if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
brcmf_abort_scanning(cfg);
else
clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
/* Turn off watchdog timer */
if (test_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state))
brcmf_set_mpc(ndev, 1);
brcmf_set_mpc(ndev, 1);
exit:
WL_TRACE("Exit\n");
/* clear any scanning activity */
cfg->scan_status = 0;
return 0;
}