ath10k: decouple suspend code
Split up fw-related and hw-related suspension code.
Although we don't advertise WoW support to
mac80211 yet it's useful to keep the code in
suspend/resume hooks.
At this point there's no need to keep pci pm ops.
In case of WoW mac80211 calls ath10k_suspend()
which should take care of entering low-power mode.
In case WoW is not available mac80211 will go
through regular interface teradown and use start/stop.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 4627c16..febba7d 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -20,6 +20,7 @@
#include <net/mac80211.h>
#include <linux/etherdevice.h>
+#include "hif.h"
#include "core.h"
#include "debug.h"
#include "wmi.h"
@@ -2749,6 +2750,67 @@
return 1;
}
+#ifdef CONFIG_PM
+static int ath10k_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct ath10k *ar = hw->priv;
+ int ret;
+
+ ar->is_target_paused = false;
+
+ ret = ath10k_wmi_pdev_suspend_target(ar);
+ if (ret) {
+ ath10k_warn("could not suspend target (%d)\n", ret);
+ return 1;
+ }
+
+ ret = wait_event_interruptible_timeout(ar->event_queue,
+ ar->is_target_paused == true,
+ 1 * HZ);
+ if (ret < 0) {
+ ath10k_warn("suspend interrupted (%d)\n", ret);
+ goto resume;
+ } else if (ret == 0) {
+ ath10k_warn("suspend timed out - target pause event never came\n");
+ goto resume;
+ }
+
+ ret = ath10k_hif_suspend(ar);
+ if (ret) {
+ ath10k_warn("could not suspend hif (%d)\n", ret);
+ goto resume;
+ }
+
+ return 0;
+resume:
+ ret = ath10k_wmi_pdev_resume_target(ar);
+ if (ret)
+ ath10k_warn("could not resume target (%d)\n", ret);
+ return 1;
+}
+
+static int ath10k_resume(struct ieee80211_hw *hw)
+{
+ struct ath10k *ar = hw->priv;
+ int ret;
+
+ ret = ath10k_hif_resume(ar);
+ if (ret) {
+ ath10k_warn("could not resume hif (%d)\n", ret);
+ return 1;
+ }
+
+ ret = ath10k_wmi_pdev_resume_target(ar);
+ if (ret) {
+ ath10k_warn("could not resume target (%d)\n", ret);
+ return 1;
+ }
+
+ return 0;
+}
+#endif
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_tx,
.start = ath10k_start,
@@ -2769,6 +2831,10 @@
.set_frag_threshold = ath10k_set_frag_threshold,
.flush = ath10k_flush,
.tx_last_beacon = ath10k_tx_last_beacon,
+#ifdef CONFIG_PM
+ .suspend = ath10k_suspend,
+ .resume = ath10k_resume,
+#endif
};
#define RATETAB_ENT(_rate, _rateid, _flags) { \