diff options
| author | Raja Mani <rmani@qca.qualcomm.com> | 2012-03-06 15:03:59 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2012-03-07 09:17:10 +0200 |
| commit | 1e9a905d9afd289bf19f02092a56660c2bcc50db (patch) | |
| tree | 59235ddee2fa32abdd39e414b58bdd3ffb0c123e /drivers/net/wireless/ath/ath6kl/sdio.c | |
| parent | 068a4633bf42501db3ec934beff07cd50c1b7e9d (diff) | |
ath6kl: Add provision to define suspend policy in disconnected state.
It gives flexibility to the user to define suspend policy
when the suspend mode is set to WOW and the device is in
disconnected state at the time of suspend.
New module parameter wow_mode is added to get the choice
from the user. This parameter is valid only if the module
parameter suspend_mode is set to WOW.
To force WOW in connected state and cut power
in disconnected state:
suspend_mode=0x3 wow_mode=0x1
To force WOW in connected state and deep sleep
in disconnected state (this is also the default wow_mode):
suspend_mode=0x3 wow_mode=0x2
If there is no value specified to wow_mode during insmod,
deep sleep mode will be tried in the disconnected state.
kvalo: clarified commit log
Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/sdio.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/sdio.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index e2f42a13395..9b6282a1422 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -836,6 +836,7 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar); struct sdio_func *func = ar_sdio->func; mmc_pm_flag_t flags; + bool try_deepsleep = false; int ret; if (ar->state == ATH6KL_STATE_SCHED_SCAN) { @@ -862,14 +863,21 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) goto cut_pwr; ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_WOW, wow); - if (ret) - goto cut_pwr; - - return 0; + if (ret && ret != -ENOTCONN) + ath6kl_err("wow suspend failed: %d\n", ret); + + if (ret && (!ar->wow_suspend_mode || + ar->wow_suspend_mode == WLAN_POWER_STATE_DEEP_SLEEP)) + try_deepsleep = true; + else if (ret && + ar->wow_suspend_mode == WLAN_POWER_STATE_CUT_PWR) + goto cut_pwr; + if (!ret) + return 0; } if (ar->suspend_mode == WLAN_POWER_STATE_DEEP_SLEEP || - !ar->suspend_mode) { + !ar->suspend_mode || try_deepsleep) { flags = sdio_get_host_pm_caps(func); if (!(flags & MMC_PM_KEEP_POWER)) |