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authorMaya Erez <qca_merez@qca.qualcomm.com>2017-06-16 10:38:04 +0300
committerKalle Valo <kvalo@qca.qualcomm.com>2017-06-21 16:18:47 +0300
commitfe9ee51e6a43a79d9c6bf92124b4db542157aed3 (patch)
tree4cf1d4315ce822ac67346b1542586faa95826fff /drivers/net/wireless/ath/wil6210/cfg80211.c
parent5b49ee9f13c7c3079117fc07ee603656c809e6c2 (diff)
downloadlinux-fe9ee51e6a43a79d9c6bf92124b4db542157aed3.tar.xz
wil6210: add support for PCIe D3hot in system suspend
In order to preserve the connection in suspend/resume flow, wil6210 host allows going to PCIe D3hot state in suspend, instead of performing a full wil6210 device reset. This requires the platform ability to initiate wakeup in case of RX data. To check that, a new platform API is added. In addition, add cfg80211 suspend/resume callbacks implementation. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/cfg80211.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/cfg80211.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 567fe43b5cf8..0b5383a62d42 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -1694,6 +1694,42 @@ static int wil_cfg80211_set_power_mgmt(struct wiphy *wiphy,
return wil_ps_update(wil, ps_profile);
}
+static int wil_cfg80211_suspend(struct wiphy *wiphy,
+ struct cfg80211_wowlan *wow)
+{
+ struct wil6210_priv *wil = wiphy_to_wil(wiphy);
+ int rc;
+
+ /* Setting the wakeup trigger based on wow is TBD */
+
+ if (test_bit(wil_status_suspended, wil->status)) {
+ wil_dbg_pm(wil, "trying to suspend while suspended\n");
+ return 0;
+ }
+
+ rc = wil_can_suspend(wil, false);
+ if (rc)
+ goto out;
+
+ wil_dbg_pm(wil, "suspending\n");
+
+ wil_p2p_stop_discovery(wil);
+
+ wil_abort_scan(wil, true);
+
+out:
+ return rc;
+}
+
+static int wil_cfg80211_resume(struct wiphy *wiphy)
+{
+ struct wil6210_priv *wil = wiphy_to_wil(wiphy);
+
+ wil_dbg_pm(wil, "resuming\n");
+
+ return 0;
+}
+
static const struct cfg80211_ops wil_cfg80211_ops = {
.add_virtual_intf = wil_cfg80211_add_iface,
.del_virtual_intf = wil_cfg80211_del_iface,
@@ -1725,6 +1761,8 @@ static const struct cfg80211_ops wil_cfg80211_ops = {
.start_p2p_device = wil_cfg80211_start_p2p_device,
.stop_p2p_device = wil_cfg80211_stop_p2p_device,
.set_power_mgmt = wil_cfg80211_set_power_mgmt,
+ .suspend = wil_cfg80211_suspend,
+ .resume = wil_cfg80211_resume,
};
static void wil_wiphy_init(struct wiphy *wiphy)