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iwlwifi: mvm: refactor iwl_mvm_query_wakeup_reasons()

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Refactor the iwl_mvm_query_wakeup_reasons() function to split the part
that gets the firmware status from the part that sets up the WoWLAN
status.  This will allow netdetect to reuse the code.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Luciano Coelho 2014-11-20 10:14:44 +02:00 committed by Emmanuel Grumbach
parent 3acc952b03
commit ec12f457d6
1 changed files with 47 additions and 26 deletions
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73
drivers/net/wireless/iwlwifi/mvm/d3.c
View file

@ -1490,9 +1490,8 @@ static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
return true;
}
/* releases the MVM mutex */
static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
static struct iwl_wowlan_status *
iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
u32 base = mvm->error_event_table;
struct error_table_start {
@ -1504,19 +1503,15 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
.id = WOWLAN_GET_STATUSES,
.flags = CMD_WANT_SKB,
};
struct iwl_wowlan_status_data status;
struct iwl_wowlan_status *fw_status;
int ret, len, status_size, i;
bool keep;
struct ieee80211_sta *ap_sta;
struct iwl_mvm_sta *mvm_ap_sta;
struct iwl_wowlan_status *status, *fw_status;
int ret, len, status_size;
iwl_trans_read_mem_bytes(mvm->trans, base,
&err_info, sizeof(err_info));
if (err_info.valid) {
IWL_INFO(mvm, "error table is valid (%d)\n",
err_info.valid);
IWL_INFO(mvm, "error table is valid (%d) with error (%d)\n",
err_info.valid, err_info.error_id);
if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
struct cfg80211_wowlan_wakeup wakeup = {
.rfkill_release = true,
@ -1524,7 +1519,7 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
ieee80211_report_wowlan_wakeup(vif, &wakeup,
GFP_KERNEL);
}
goto out_unlock;
return ERR_PTR(-EIO);
}
/* only for tracing for now */
@ -1535,22 +1530,53 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
ret = iwl_mvm_send_cmd(mvm, &cmd);
if (ret) {
IWL_ERR(mvm, "failed to query status (%d)\n", ret);
goto out_unlock;
return ERR_PTR(ret);
}
/* RF-kill already asserted again... */
if (!cmd.resp_pkt)
goto out_unlock;
if (!cmd.resp_pkt) {
ret = -ERFKILL;
goto out_free_resp;
}
status_size = sizeof(*fw_status);
len = iwl_rx_packet_payload_len(cmd.resp_pkt);
if (len < status_size) {
IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
ret = -EIO;
goto out_free_resp;
}
fw_status = (void *)cmd.resp_pkt->data;
status = (void *)cmd.resp_pkt->data;
if (len != (status_size +
ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4))) {
IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
ret = -EIO;
goto out_free_resp;
}
fw_status = kmemdup(status, len, GFP_KERNEL);
out_free_resp:
iwl_free_resp(&cmd);
return ret ? ERR_PTR(ret) : fw_status;
}
/* releases the MVM mutex */
static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
struct iwl_wowlan_status_data status;
struct iwl_wowlan_status *fw_status;
int i;
bool keep;
struct ieee80211_sta *ap_sta;
struct iwl_mvm_sta *mvm_ap_sta;
fw_status = iwl_mvm_get_wakeup_status(mvm, vif);
if (IS_ERR_OR_NULL(fw_status))
goto out_unlock;
status.pattern_number = le16_to_cpu(fw_status->pattern_number);
for (i = 0; i < 8; i++)
@ -1563,17 +1589,12 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
le32_to_cpu(fw_status->wake_packet_bufsize);
status.wake_packet = fw_status->wake_packet;
if (len != status_size + ALIGN(status.wake_packet_bufsize, 4)) {
IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
goto out_free_resp;
}
/* still at hard-coded place 0 for D3 image */
ap_sta = rcu_dereference_protected(
mvm->fw_id_to_mac_id[0],
lockdep_is_held(&mvm->mutex));
if (IS_ERR_OR_NULL(ap_sta))
goto out_free_resp;
goto out_free;
mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
@ -1590,12 +1611,12 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
iwl_free_resp(&cmd);
kfree(fw_status);
return keep;
out_free_resp:
iwl_free_resp(&cmd);
out_unlock:
out_free:
kfree(fw_status);
out_unlock:
mutex_unlock(&mvm->mutex);
return false;
}