diff options
| author | Avraham Stern <avraham.stern@intel.com> | 2015-03-22 14:11:01 +0300 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-08-04 21:29:40 +0300 |
| commit | 17564dde6024fcfe74cc0512e7837175aa5283d9 (patch) | |
| tree | 07fee9e78addb630a0e32a010ce1a5b62b767e99 /drivers/net/wireless/iwlwifi/iwl-drv.c | |
| parent | 9d012d0dbee1dcc4f7491925de41b4249b2cfb31 (diff) | |
| download | linux-17564dde6024fcfe74cc0512e7837175aa5283d9.tar.xz | |
iwlwifi: add new TLV capability flag for gscan support
Gscan is a scan feature which is supported on certain devices only,
hence the need for a TLV flag for it. For devices that support gscan
store the gscan capabilities advertised by the FW so the driver can
report it to upper layers.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-drv.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-drv.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c index 721d3cb94386..a86aa5bcee7d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/iwlwifi/iwl-drv.c @@ -372,6 +372,30 @@ static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) return 0; } +static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data, + const u32 len) +{ + struct iwl_fw_gscan_capabilities *fw_capa = (void *)data; + struct iwl_gscan_capabilities *capa = &fw->gscan_capa; + + if (len < sizeof(*fw_capa)) + return -EINVAL; + + capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size); + capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets); + capa->max_ap_cache_per_scan = + le32_to_cpu(fw_capa->max_ap_cache_per_scan); + capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size); + capa->max_scan_reporting_threshold = + le32_to_cpu(fw_capa->max_scan_reporting_threshold); + capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps); + capa->max_significant_change_aps = + le32_to_cpu(fw_capa->max_significant_change_aps); + capa->max_bssid_history_entries = + le32_to_cpu(fw_capa->max_bssid_history_entries); + return 0; +} + /* * Gets uCode section from tlv. */ @@ -581,6 +605,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, int num_of_cpus; bool usniffer_images = false; bool usniffer_req = false; + bool gscan_capa = false; if (len < sizeof(*ucode)) { IWL_ERR(drv, "uCode has invalid length: %zd\n", len); @@ -991,6 +1016,11 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, drv->fw.sdio_adma_addr = le32_to_cpup((__le32 *)tlv_data); break; + case IWL_UCODE_TLV_FW_GSCAN_CAPA: + if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len)) + goto invalid_tlv_len; + gscan_capa = true; + break; default: IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); break; @@ -1009,6 +1039,16 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, return -EINVAL; } + /* + * If ucode advertises that it supports GSCAN but GSCAN + * capabilities TLV is not present, warn and continue without GSCAN. + */ + if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && + WARN(!gscan_capa, + "GSCAN is supported but capabilities TLV is unavailable\n")) + __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT, + capa->_capa); + return 0; invalid_tlv_len: |