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iwlagn: add feature flags

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Some new devices and microcode files will a greater
variety of features, so the TLV-per-feature approach
we took before will quickly make things harder to
manage and increase the file size.

Add a new TLV that has feature flags. Currently, it
will contain:
 1) a PAN feature flag, which moves from a separate
    TLV
 2) a new BT stats bit that indicates whether the
    microcode image uses bluetooth statistics
 3) a new MFP flag for management frame protection
    which can be enabled once the device/microcode
    supports it

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-04-05 09:42:02 -07:00 committed by John W. Linville
parent 7415952ff7
commit 3997ff39fa
3 changed files with 44 additions and 4 deletions
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29
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1191,7 +1191,7 @@ static void iwl_nic_start(struct iwl_priv *priv)
struct iwlagn_ucode_capabilities {
u32 max_probe_length;
u32 standard_phy_calibration_size;
bool pan;
u32 flags;
};
static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
@ -1418,7 +1418,23 @@ static int iwlagn_load_firmware(struct iwl_priv *priv,
case IWL_UCODE_TLV_PAN:
if (tlv_len)
goto invalid_tlv_len;
capa->pan = true;
capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
break;
case IWL_UCODE_TLV_FLAGS:
/* must be at least one u32 */
if (tlv_len < sizeof(u32))
goto invalid_tlv_len;
/* and a proper number of u32s */
if (tlv_len % sizeof(u32))
goto invalid_tlv_len;
/*
* This driver only reads the first u32 as
* right now no more features are defined,
* if that changes then either the driver
* will not work with the new firmware, or
* it'll not take advantage of new features.
*/
capa->flags = le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
if (tlv_len != sizeof(u32))
@ -1681,12 +1697,16 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
priv->cfg->base_params->max_event_log_size;
priv->_agn.inst_errlog_ptr = pieces.inst_errlog_ptr;
if (ucode_capa.pan) {
if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) {
priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
} else
priv->sta_key_max_num = STA_KEY_MAX_NUM;
if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BTSTATS ||
(priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics))
priv->bt_statistics = true;
/* Copy images into buffers for card's bus-master reads ... */
/* Runtime instructions (first block of data in file) */
@ -2827,6 +2847,9 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
IEEE80211_HW_SUPPORTS_STATIC_SMPS;
if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
hw->flags |= IEEE80211_HW_MFP_CAPABLE;
hw->sta_data_size = sizeof(struct iwl_station_priv);
hw->vif_data_size = sizeof(struct iwl_vif_priv);

2
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@ -723,7 +723,7 @@ static inline bool iwl_advanced_bt_coexist(struct iwl_priv *priv)
static inline bool iwl_bt_statistics(struct iwl_priv *priv)
{
return priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics;
return priv->bt_statistics;
}
extern bool bt_coex_active;

17
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -535,6 +535,22 @@ enum iwl_ucode_tlv_type {
IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
/* 16 and 17 reserved for future use */
IWL_UCODE_TLV_FLAGS = 18,
};
/**
* enum iwl_ucode_tlv_flag - ucode API flags
* @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
* was a separate TLV but moved here to save space.
* @IWL_UCODE_TLV_FLAGS_BTSTATS: This uCode image uses BT statistics, which
* may be true even if the device doesn't have BT.
* @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
*/
enum iwl_ucode_tlv_flag {
IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
IWL_UCODE_TLV_FLAGS_BTSTATS = BIT(1),
IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
};
struct iwl_ucode_tlv {
@ -1410,6 +1426,7 @@ struct iwl_priv {
bool bt_ch_announce;
bool bt_full_concurrent;
bool bt_ant_couple_ok;
bool bt_statistics;
__le32 kill_ack_mask;
__le32 kill_cts_mask;
__le16 bt_valid;