diff options
| author | Roee Zamir <roee.zamir@intel.com> | 2016-08-02 13:55:13 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2016-09-19 11:29:28 +0300 |
| commit | b3bee580b1e200e4fc14091e3e118ae8280dc06c (patch) | |
| tree | f60fd745403e395d9d5689c46e84c6e89e50b87c /drivers/net/wireless/intel/iwlwifi/mvm/utils.c | |
| parent | 5a41a86c525a53d31a229dd358f70d6b4b5a7bbc (diff) | |
iwlwifi: mvm: Add debugfs function for clocks diff
New function, reveals the diff between gp2 and host time.
Signed-off-by: Roee Zamir <roee.zamir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/utils.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/utils.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c index 7c138fedcb19..9e366e28c983 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c @@ -1225,6 +1225,28 @@ void iwl_mvm_inactivity_check(struct iwl_mvm *mvm) rcu_read_unlock(); } +void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) +{ + bool ps_disabled; + + lockdep_assert_held(&mvm->mutex); + + /* Disable power save when reading GP2 */ + ps_disabled = mvm->ps_disabled; + if (!ps_disabled) { + mvm->ps_disabled = true; + iwl_mvm_power_update_device(mvm); + } + + *gp2 = iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG); + *boottime = ktime_get_boot_ns(); + + if (!ps_disabled) { + mvm->ps_disabled = ps_disabled; + iwl_mvm_power_update_device(mvm); + } +} + int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif, enum iwl_lqm_cmd_operatrions operation, u32 duration, u32 timeout) |