From: Raja Mani <[email protected]>
The piece of code used in ath6kk_wow_suspend function
to configure the host sleep mode is needed in deep sleep
case also.
Moving that portion to a separate function called
ath6kl_update_host_mode() would be helpful to avoid
the duplication of the same code in deep sleep path.
There is no functional change.
Signed-off-by: Raja Mani <[email protected]>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 72 ++++++++++++++++------------
drivers/net/wireless/ath/ath6kl/core.h | 10 ++++
2 files changed, 51 insertions(+), 31 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index b605f4a..883a0ca 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1924,12 +1924,50 @@ static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
return 0;
}
+static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
+{
+ int ret, left;
+
+ 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,
+ is_hsleep_mode_procsed(vif),
+ 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,
+ is_ctrl_ep_empty(ar),
+ WMI_TIMEOUT);
+ if (left == 0) {
+ ath6kl_warn("clear wmi ctrl data timeout\n");
+ ret = -ETIMEDOUT;
+ } else if (left < 0) {
+ ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
+ ret = left;
+ }
+ }
+
+ return ret;
+}
+
static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
{
struct in_device *in_dev;
struct in_ifaddr *ifa;
struct ath6kl_vif *vif;
- int ret, left;
+ int ret;
u32 filter = 0;
u16 i, bmiss_time;
u8 index = 0;
@@ -2030,39 +2068,11 @@ 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);
+ ret = ath6kl_cfg80211_host_sleep(ar, vif);
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);
- if (left == 0) {
- ath6kl_warn("clear wmi ctrl data timeout\n");
- ret = -ETIMEDOUT;
- } else if (left < 0) {
- ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
- ret = left;
- }
- }
-
- return ret;
+ return 0;
}
static int ath6kl_wow_resume(struct ath6kl *ar)
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index 17697eb..af9b18b 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -741,6 +741,16 @@ static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar,
return addr;
}
+static inline int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
+{
+ return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
+}
+
+static inline bool is_ctrl_ep_empty(struct ath6kl *ar)
+{
+ return !ar->tx_pending[ar->ctrl_ep];
+}
+
int ath6kl_configure_target(struct ath6kl *ar);
void ath6kl_detect_error(unsigned long ptr);
void disconnect_timer_handler(unsigned long ptr);
--
1.7.1
From: Raja Mani <[email protected]>
Adding below steps helps to get good power numbers
in deep sleep suspend path,
* Disable WOW mode.
* Flush data packets and wait for all control packets.
to be cleared in TX path before deep sleep suspend.
* Set host sleep mode to SLEEP.
Below steps are added to perform the recovery action
while the system resume from deep sleep,
* Set host sleep mode to AWAKE.
* Reset scan parameters to default value.
In addition, Debug prints are added to track deep sleep
suspend/resume state.
Signed-off-by: Raja Mani <[email protected]>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 98 +++++++++++++++++++++++-----
1 files changed, 81 insertions(+), 17 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 883a0ca..aa9315d 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2119,6 +2119,77 @@ static int ath6kl_wow_resume(struct ath6kl *ar)
return 0;
}
+static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
+{
+ struct ath6kl_vif *vif;
+ int ret;
+
+ vif = ath6kl_vif_first(ar);
+ if (!vif)
+ return -EIO;
+
+ if (!ath6kl_cfg80211_ready(vif))
+ return -EIO;
+
+ ath6kl_cfg80211_stop_all(ar);
+
+ /* Save the current power mode before enabling power save */
+ ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
+
+ ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
+ if (ret)
+ return ret;
+
+ /* Disable WOW mode */
+ ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
+ ATH6KL_WOW_MODE_DISABLE,
+ 0, 0);
+ if (ret)
+ return ret;
+
+ /* Flush all non control pkts in TX path */
+ ath6kl_tx_data_cleanup(ar);
+
+ ret = ath6kl_cfg80211_host_sleep(ar, vif);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
+{
+ struct ath6kl_vif *vif;
+ int ret;
+
+ vif = ath6kl_vif_first(ar);
+
+ if (!vif)
+ return -EIO;
+
+ if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
+ ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
+ ar->wmi->saved_pwr_mode);
+ if (ret)
+ return ret;
+ }
+
+ ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
+ ATH6KL_HOST_MODE_AWAKE);
+ if (ret)
+ return ret;
+
+ ar->state = ATH6KL_STATE_ON;
+
+ /* Reset scan parameter to default values */
+ ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
+ 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
int ath6kl_cfg80211_suspend(struct ath6kl *ar,
enum ath6kl_cfg_suspend_mode mode,
struct cfg80211_wowlan *wow)
@@ -2147,15 +2218,12 @@ int ath6kl_cfg80211_suspend(struct ath6kl *ar,
case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
- ath6kl_cfg80211_stop_all(ar);
-
- /* save the current power mode before enabling power save */
- ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
+ ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
- ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
+ ret = ath6kl_cfg80211_deepsleep_suspend(ar);
if (ret) {
- ath6kl_warn("wmi powermode command failed during suspend: %d\n",
- ret);
+ ath6kl_err("deepsleep suspend failed: %d\n", ret);
+ return ret;
}
ar->state = ATH6KL_STATE_DEEPSLEEP;
@@ -2216,17 +2284,13 @@ int ath6kl_cfg80211_resume(struct ath6kl *ar)
break;
case ATH6KL_STATE_DEEPSLEEP:
- if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
- ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
- ar->wmi->saved_pwr_mode);
- if (ret) {
- ath6kl_warn("wmi powermode command failed during resume: %d\n",
- ret);
- }
- }
-
- ar->state = ATH6KL_STATE_ON;
+ ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
+ ret = ath6kl_cfg80211_deepsleep_resume(ar);
+ if (ret) {
+ ath6kl_warn("deep sleep resume failed: %d\n", ret);
+ return ret;
+ }
break;
case ATH6KL_STATE_CUTPOWER:
--
1.7.1
On 03/21/2012 11:33 AM, [email protected] wrote:
> From: Raja Mani <[email protected]>
>
> The piece of code used in ath6kk_wow_suspend function
> to configure the host sleep mode is needed in deep sleep
> case also.
>
> Moving that portion to a separate function called
> ath6kl_update_host_mode() would be helpful to avoid
> the duplication of the same code in deep sleep path.
>
> There is no functional change.
>
> Signed-off-by: Raja Mani <[email protected]>
Thanks, both patches applied.
But I did small changes to the first patch. I noticed that the inline
functions were only used in cfg80211.c so there was no need to have in
core.h. Also I fixed one long line.
Kalle