Allows user to disable LDPC coding.
This possibility is useful for testing purpose.
Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com>
{ INT_RANGE(disable_ht, 0, 1) },
{ INT_RANGE(disable_ht40, -1, 1) },
{ INT_RANGE(disable_sgi, 0, 1) },
+ { INT_RANGE(disable_ldpc, 0, 1) },
{ INT_RANGE(disable_max_amsdu, -1, 1) },
{ INT_RANGE(ampdu_factor, -1, 3) },
{ INT_RANGE(ampdu_density, -1, 7) },
ssid->disable_ht = DEFAULT_DISABLE_HT;
ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
ssid->disable_sgi = DEFAULT_DISABLE_SGI;
+ ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
#define DEFAULT_DISABLE_HT 0
#define DEFAULT_DISABLE_HT40 0
#define DEFAULT_DISABLE_SGI 0
+#define DEFAULT_DISABLE_LDPC 0
#define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
#define DEFAULT_AMPDU_FACTOR -1 /* no change */
#define DEFAULT_AMPDU_DENSITY -1 /* no change */
int disable_sgi;
/**
+ * disable_ldpc - Disable LDPC for this network
+ *
+ * By default, use it if it is available, but this can be configured
+ * to 1 to have it disabled.
+ */
+ int disable_ldpc;
+
+ /**
* disable_max_amsdu - Disable MAX A-MSDU
*
* A-MDSU will be 3839 bytes when disabled, or 7935
}
+static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
+ struct ieee80211_ht_capabilities *htcaps,
+ struct ieee80211_ht_capabilities *htcaps_mask,
+ int disabled)
+{
+ /* Masking these out disables LDPC */
+ u16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP);
+
+ wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled);
+
+ if (disabled)
+ htcaps->ht_capabilities_info &= ~msk;
+ else
+ htcaps->ht_capabilities_info |= msk;
+
+ htcaps_mask->ht_capabilities_info |= msk;
+
+ return 0;
+}
+
+
void wpa_supplicant_apply_ht_overrides(
struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
struct wpa_driver_associate_params *params)
wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density);
wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
+ wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
}
#endif /* CONFIG_HT_OVERRIDES */
# 0 = SGI enabled (if AP supports it)
# 1 = SGI disabled
#
+# disable_ldpc: Whether LDPC should be disabled.
+# 0 = LDPC enabled (if AP supports it)
+# 1 = LDPC disabled
+#
# ht_mcs: Configure allowed MCS rates.
# Parsed as an array of bytes, in base-16 (ascii-hex)
# ht_mcs="" // Use all available (default)