From: Avraham Stern <avraham.stern@xxxxxxxxx>
Add UMAC scan iteration complete notification. This notification can
be enabled by setting scan_iter_notif_enabled through debugfs.
Upon receiving this notification, print the list of channels that
have been scanned in this iteration. This is useful for debugging.
Signed-off-by: Avraham Stern <avraham.stern@xxxxxxxxx>
Reviewed-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h | 23 +++++++++++++++++++++++
drivers/net/wireless/iwlwifi/mvm/fw-api.h | 5 +++--
drivers/net/wireless/iwlwifi/mvm/mvm.h | 3 +++
drivers/net/wireless/iwlwifi/mvm/ops.c | 3 +++
drivers/net/wireless/iwlwifi/mvm/scan.c | 21 +++++++++++++++++++++
5 files changed, 53 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
index be1a0a1..0228693 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
@@ -837,4 +837,27 @@ struct iwl_scan_offload_profiles_query {
struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
} __packed; /* SCAN_OFFLOAD_PROFILES_QUERY_RSP_S_VER_2 */
+/**
+ * struct iwl_umac_scan_iter_complete_notif - notifies end of scanning iteration
+ * @uid: scan id, &enum iwl_umac_scan_uid_offsets
+ * @scanned_channels: number of channels scanned and number of valid elements in
+ * results array
+ * @status: one of SCAN_COMP_STATUS_*
+ * @bt_status: BT on/off status
+ * @last_channel: last channel that was scanned
+ * @tsf_low: TSF timer (lower half) in usecs
+ * @tsf_high: TSF timer (higher half) in usecs
+ * @results: array of scan results, only "scanned_channels" of them are valid
+ */
+struct iwl_umac_scan_iter_complete_notif {
+ __le32 uid;
+ u8 scanned_channels;
+ u8 status;
+ u8 bt_status;
+ u8 last_channel;
+ __le32 tsf_low;
+ __le32 tsf_high;
+ struct iwl_scan_results_notif results[];
+} __packed; /* SCAN_ITER_COMPLETE_NTF_UMAC_API_S_VER_1 */
+
#endif
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 56db2ba..0ed7675 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -6,7 +6,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -32,7 +32,7 @@
* BSD LICENSE
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -108,6 +108,7 @@ enum {
ANTENNA_COUPLING_NOTIFICATION = 0xa,
/* UMAC scan commands */
+ SCAN_ITERATION_COMPLETE_UMAC = 0xb5,
SCAN_CFG_CMD = 0xc,
SCAN_REQ_UMAC = 0xd,
SCAN_ABORT_UMAC = 0xe,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index dde83ef..d4e0cab 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1150,6 +1150,9 @@ int iwl_mvm_config_scan(struct iwl_mvm *mvm);
int iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
+ struct iwl_rx_cmd_buffer *rxb,
+ struct iwl_device_cmd *cmd);
/* MVM debugfs */
#ifdef CONFIG_IWLWIFI_DEBUGFS
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 534a9fd..4935caf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -245,6 +245,8 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
false),
RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
true),
+ RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
+ iwl_mvm_rx_umac_scan_iter_complete_notif, false),
RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
@@ -356,6 +358,7 @@ static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION),
CMD(TDLS_CONFIG_CMD),
CMD(MCC_UPDATE_CMD),
+ CMD(SCAN_ITERATION_COMPLETE_UMAC),
};
#undef CMD
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index e859584..81ea9f4 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1181,6 +1181,10 @@ static u32 iwl_mvm_scan_umac_flags(struct iwl_mvm *mvm,
if (iwl_mvm_scan_total_iterations(params) > 1)
flags |= IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC;
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ if (mvm->scan_iter_notif_enabled)
+ flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
+#endif
return flags;
}
@@ -1522,6 +1526,23 @@ int iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
return 0;
}
+int iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
+ struct iwl_rx_cmd_buffer *rxb,
+ struct iwl_device_cmd *cmd)
+{
+ struct iwl_rx_packet *pkt = rxb_addr(rxb);
+ struct iwl_umac_scan_iter_complete_notif *notif = (void *)pkt->data;
+ u8 buf[256];
+
+ IWL_DEBUG_SCAN(mvm,
+ "UMAC Scan iteration complete: status=0x%x scanned_channels=%d channels list: %s\n",
+ notif->status, notif->scanned_channels,
+ iwl_mvm_dump_channel_list(notif->results,
+ notif->scanned_channels, buf,
+ sizeof(buf)));
+ return 0;
+}
+
static bool iwl_scan_umac_done_check(struct iwl_notif_wait_data *notif_wait,
struct iwl_rx_packet *pkt, void *data)
{
--
2.1.4
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