diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/scan.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/scan.c | 101 |
1 files changed, 50 insertions, 51 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 443562c4ca3e..579b36b0fecb 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -567,12 +567,6 @@ static int iwl_mvm_send_scan_offload_abort(struct iwl_mvm *mvm) }; u32 status; - /* Exit instantly with error when device is not ready - * to receive scan abort command or it does not perform - * scheduled scan currently */ - if (!mvm->scan_status) - return -EIO; - ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status); if (ret) return ret; @@ -592,30 +586,15 @@ static int iwl_mvm_send_scan_offload_abort(struct iwl_mvm *mvm) return ret; } -int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify) +static int iwl_mvm_lmac_scan_stop(struct iwl_mvm *mvm, int type) { int ret; struct iwl_notification_wait wait_scan_done; static const u8 scan_done_notif[] = { SCAN_OFFLOAD_COMPLETE, }; - bool sched = !!(mvm->scan_status & IWL_MVM_SCAN_SCHED); + bool sched = type & IWL_MVM_SCAN_SCHED; lockdep_assert_held(&mvm->mutex); - if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) - return iwl_umac_scan_stop(mvm, IWL_MVM_SCAN_SCHED, notify); - - /* FIXME: For now we only check if no scan is set here, since - * we only support LMAC in this flow and it doesn't support - * multiple scans. - */ - if (!mvm->scan_status) - return 0; - - if (iwl_mvm_is_radio_killed(mvm)) { - ret = 0; - goto out; - } - iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_done, scan_done_notif, ARRAY_SIZE(scan_done_notif), @@ -634,27 +613,6 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify) ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_done, 1 * HZ); out: - /* Clear the scan status so the next scan requests will - * succeed and mark the scan as stopping, so that the Rx - * handler doesn't do anything, as the scan was stopped from - * above. Since the rx handler won't do anything now, we have - * to release the scan reference here. - */ - if (mvm->scan_status == IWL_MVM_SCAN_REGULAR) - iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); - - if (sched) { - mvm->scan_status &= ~IWL_MVM_SCAN_SCHED; - mvm->scan_status |= IWL_MVM_SCAN_STOPPING_SCHED; - if (notify) - ieee80211_sched_scan_stopped(mvm->hw); - } else { - mvm->scan_status &= ~IWL_MVM_SCAN_REGULAR; - mvm->scan_status |= IWL_MVM_SCAN_STOPPING_REGULAR; - if (notify) - ieee80211_scan_completed(mvm->hw, true); - } - return ret; } @@ -927,8 +885,10 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return 0; } -int iwl_mvm_cancel_scan(struct iwl_mvm *mvm) +int iwl_mvm_reg_scan_stop(struct iwl_mvm *mvm) { + int ret; + if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) return iwl_umac_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); @@ -936,13 +896,52 @@ int iwl_mvm_cancel_scan(struct iwl_mvm *mvm) return 0; if (iwl_mvm_is_radio_killed(mvm)) { - ieee80211_scan_completed(mvm->hw, true); - iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); - mvm->scan_status &= ~IWL_MVM_SCAN_REGULAR; + ret = 0; + goto out; + } + + ret = iwl_mvm_lmac_scan_stop(mvm, IWL_MVM_SCAN_REGULAR); + if (!ret) + mvm->scan_status |= IWL_MVM_SCAN_STOPPING_REGULAR; +out: + /* Clear the scan status so the next scan requests will + * succeed and mark the scan as stopping, so that the Rx + * handler doesn't do anything, as the scan was stopped from + * above. Since the rx handler won't do anything now, we have + * to release the scan reference here. + */ + iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); + + mvm->scan_status &= ~IWL_MVM_SCAN_REGULAR; + ieee80211_scan_completed(mvm->hw, true); + + return ret; +} + +int iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm, bool notify) +{ + int ret; + + if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) + return iwl_umac_scan_stop(mvm, IWL_MVM_SCAN_SCHED, notify); + + if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) return 0; + + if (iwl_mvm_is_radio_killed(mvm)) { + ret = 0; + goto out; } - return iwl_mvm_scan_offload_stop(mvm, true); + ret = iwl_mvm_lmac_scan_stop(mvm, IWL_MVM_SCAN_SCHED); + if (!ret) + mvm->scan_status |= IWL_MVM_SCAN_STOPPING_SCHED; +out: + mvm->scan_status &= ~IWL_MVM_SCAN_SCHED; + if (notify) + ieee80211_sched_scan_stopped(mvm->hw); + + return ret; } /* UMAC scan API */ @@ -1275,11 +1274,11 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type) case IWL_MVM_SCAN_REGULAR: if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK) return -EBUSY; - return iwl_mvm_scan_offload_stop(mvm, true); + return iwl_mvm_sched_scan_stop(mvm, true); case IWL_MVM_SCAN_SCHED: if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK) return -EBUSY; - return iwl_mvm_cancel_scan(mvm); + return iwl_mvm_reg_scan_stop(mvm); case IWL_MVM_SCAN_NETDETECT: /* No need to stop anything for net-detect since the * firmware is restarted anyway. This way, any sched |