From: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
For every WMI_SET_HOST_SLEEP_MODE_CMDID command (send from the host),
the firmware sends WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID as
an acknowledgement to the host.
In order to being sync with the firmware, the host has to wait for
WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENT event before going to
the suspend state. This patch ensures ath6kl_wow_suspend() waits
until it gets this event after sending set host sleep mode command.
This patch adds,
* New command WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID in
WMI event table.
* New WMI function ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx()
to process the event.
* New flag HOST_SLEEP_MODE_CMD_PROCESSED in VIF flags to record
the arrival of the event.
Signed-off-by: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 15 +++++++++++++++
drivers/net/wireless/ath/ath6kl/core.h | 1 +
drivers/net/wireless/ath/ath6kl/wmi.c | 17 +++++++++++++++++
drivers/net/wireless/ath/ath6kl/wmi.h | 2 ++
4 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index e676cfc..1902e2f 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1975,11 +1975,26 @@ skip_arp:
if (ret)
return ret;
+ clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+
ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_HOST_MODE_ASLEEP);
if (ret)
return ret;
+ left = wait_event_interruptible_timeout(ar->event_wq,
+ test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags),
+ WMI_TIMEOUT);
+ if (left == 0) {
+ ath6kl_warn("timeout, didn't get host sleep cmd "
+ "processed event\n");
+ ret = -ETIMEDOUT;
+ } else if (left < 0) {
+ ath6kl_warn("error while waiting for host sleep cmd "
+ "processed event %d\n", left);
+ ret = left;
+ }
+
if (ar->tx_pending[ar->ctrl_ep]) {
left = wait_event_interruptible_timeout(ar->event_wq,
ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT);
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index ab232c5..998a745 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -451,6 +451,7 @@ enum ath6kl_vif_state {
DTIM_PERIOD_AVAIL,
WLAN_ENABLED,
STATS_UPDATE_PEND,
+ HOST_SLEEP_MODE_CMD_PROCESSED,
};
struct ath6kl_vif {
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 9c8e4df..18fa9aa 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -2590,6 +2590,18 @@ int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
return ret;
}
+/* This command has zero length payload */
+static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
+ struct ath6kl_vif *vif)
+{
+ struct ath6kl *ar = wmi->parent_dev;
+
+ set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+ wake_up(&ar->event_wq);
+
+ return 0;
+}
+
int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
enum ath6kl_wow_mode wow_mode,
u32 filter, u16 host_req_delay)
@@ -3556,6 +3568,11 @@ int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
break;
+ case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
+ ath6kl_dbg(ATH6KL_DBG_WMI,
+ "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
+ ret = ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
+ break;
case WMI_REMAIN_ON_CHNL_EVENTID:
ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
ret = ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h
index 85698ef..e791986 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.h
+++ b/drivers/net/wireless/ath/ath6kl/wmi.h
@@ -1357,6 +1357,8 @@ enum wmi_event_id {
WMI_P2P_START_SDPD_EVENTID,
WMI_P2P_SDPD_RX_EVENTID,
+ WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID = 0x1047,
+
WMI_THIN_RESERVED_START_EVENTID = 0x8000,
/* Events in this range are reserved for thinmode */
WMI_THIN_RESERVED_END_EVENTID = 0x8fff,
--
1.7.1
--
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