wl1271: Add support for hardware GEM cipher

This patch adds support for the hardware GEM cipher suite.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>

3 files changed, 19 insertions, 1 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271.h b/drivers/net/wireless/wl12xx/wl1271.h
index cae489300e06..779b130fdb3e 100644
--- a/drivers/net/wireless/wl12xx/wl1271.h
+++ b/drivers/net/wireless/wl12xx/wl1271.h
@@ -117,6 +117,8 @@ enum {
 #define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
 #define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
 
+#define WL1271_CIPHER_SUITE_GEM 0x00147201
+
 #define WL1271_BUSY_WORD_CNT 1
 #define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
 
diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.h b/drivers/net/wireless/wl12xx/wl1271_cmd.h
index ff8e35e87d98..33b946b4cb07 100644
--- a/drivers/net/wireless/wl12xx/wl1271_cmd.h
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.h
@@ -279,7 +279,7 @@ enum wl1271_cmd_key_type {
         KEY_WEP  = 1,
         KEY_TKIP = 2,
         KEY_AES  = 3,
-        KEY_GEM  = 4
+        KEY_GEM  = 4,
 };
 
 /* FIXME: Add description for key-types */
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index b7e9c69f3772..cb18f22bbc5c 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -1549,6 +1549,11 @@ static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
                 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
                 break;
+        case WL1271_CIPHER_SUITE_GEM:
+                key_type = KEY_GEM;
+                tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
+                tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
+                break;
         default:
                 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
 
@@ -2403,6 +2408,14 @@ EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
 
 int wl1271_init_ieee80211(struct wl1271 *wl)
 {
+        static const u32 cipher_suites[] = {
+                WLAN_CIPHER_SUITE_WEP40,
+                WLAN_CIPHER_SUITE_WEP104,
+                WLAN_CIPHER_SUITE_TKIP,
+                WLAN_CIPHER_SUITE_CCMP,
+                WL1271_CIPHER_SUITE_GEM,
+        };
+
         /* The tx descriptor buffer and the TKIP space. */
         wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
                 sizeof(struct wl1271_tx_hw_descr);
@@ -2420,6 +2433,9 @@ int wl1271_init_ieee80211(struct wl1271 *wl)
                 IEEE80211_HW_CONNECTION_MONITOR |
                 IEEE80211_HW_SUPPORTS_CQM_RSSI;
 
+        wl->hw->wiphy->cipher_suites = cipher_suites;
+        wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+
         wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
                 BIT(NL80211_IFTYPE_ADHOC);
         wl->hw->wiphy->max_scan_ssids = 1;