rtlwifi: Change cam routines for addition of rtl8192se and rtl8192de

Change cam routines for addition of RTL8192SE and RTL8192DE code

Signed-off-by: Chaoming_Li <chaoming_li@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 89 insertions, 22 deletions

diff --git a/drivers/net/wireless/rtlwifi/cam.c b/drivers/net/wireless/rtlwifi/cam.c
index 52c9c1367ca..7295af0536b 100644
--- a/drivers/net/wireless/rtlwifi/cam.c
+++ b/drivers/net/wireless/rtlwifi/cam.c
@@ -23,6 +23,8 @@
  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  * Hsinchu 300, Taiwan.
  *
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
  *****************************************************************************/
 
 #include "wifi.h"
@@ -49,7 +51,7 @@ static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no,
         u32 target_content = 0;
         u8 entry_i;
 
-        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
                  ("key_cont_128:\n %x:%x:%x:%x:%x:%x\n",
                   key_cont_128[0], key_cont_128[1],
                   key_cont_128[2], key_cont_128[3],
@@ -68,15 +70,13 @@ static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no,
                         rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
                                         target_command);
 
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
-                                 ("rtl_cam_program_entry(): "
-                                  "WRITE %x: %x\n",
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+                                 ("WRITE %x: %x\n",
                                   rtlpriv->cfg->maps[WCAMI], target_content));
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
                                  ("The Key ID is %d\n", entry_no));
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
-                                 ("rtl_cam_program_entry(): "
-                                  "WRITE %x: %x\n",
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+                                 ("WRITE %x: %x\n",
                                   rtlpriv->cfg->maps[RWCAM], target_command));
 
                 } else if (entry_i == 1) {
@@ -91,12 +91,10 @@ static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no,
                         rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
                                         target_command);
 
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
-                                 ("rtl_cam_program_entry(): WRITE A4: %x\n",
-                                  target_content));
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
-                                 ("rtl_cam_program_entry(): WRITE A0: %x\n",
-                                  target_command));
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+                                 ("WRITE A4: %x\n", target_content));
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+                                 ("WRITE A0: %x\n", target_command));
 
                 } else {
 
@@ -113,16 +111,14 @@ static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no,
                                         target_command);
                         udelay(100);
 
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
-                                 ("rtl_cam_program_entry(): WRITE A4: %x\n",
-                                  target_content));
-                        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
-                                 ("rtl_cam_program_entry(): WRITE A0: %x\n",
-                                  target_command));
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+                                 ("WRITE A4: %x\n", target_content));
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+                                 ("WRITE A0: %x\n", target_command));
                 }
         }
 
-        RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+        RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
                  ("after set key, usconfig:%x\n", us_config));
 }
 
@@ -289,3 +285,71 @@ void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index)
 
 }
 EXPORT_SYMBOL(rtl_cam_empty_entry);
+
+u8 rtl_cam_get_free_entry(struct ieee80211_hw *hw, u8 *sta_addr)
+{
+        struct rtl_priv *rtlpriv = rtl_priv(hw);
+        u32 bitmap = (rtlpriv->sec.hwsec_cam_bitmap) >> 4;
+        u8 entry_idx = 0;
+        u8 i, *addr;
+
+        if (NULL == sta_addr) {
+                RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+                        ("sta_addr is NULL.\n"));
+                return TOTAL_CAM_ENTRY;
+        }
+        /* Does STA already exist? */
+        for (i = 4; i < TOTAL_CAM_ENTRY; i++) {
+                addr = rtlpriv->sec.hwsec_cam_sta_addr[i];
+                if (memcmp(addr, sta_addr, ETH_ALEN) == 0)
+                        return i;
+        }
+        /* Get a free CAM entry. */
+        for (entry_idx = 4; entry_idx < TOTAL_CAM_ENTRY; entry_idx++) {
+                if ((bitmap & BIT(0)) == 0) {
+                        RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+                                ("-----hwsec_cam_bitmap: 0x%x entry_idx=%d\n",
+                                 rtlpriv->sec.hwsec_cam_bitmap, entry_idx));
+                        rtlpriv->sec.hwsec_cam_bitmap |= BIT(0) << entry_idx;
+                        memcpy(rtlpriv->sec.hwsec_cam_sta_addr[entry_idx],
+                               sta_addr, ETH_ALEN);
+                        return entry_idx;
+                }
+                bitmap = bitmap >> 1;
+        }
+        return TOTAL_CAM_ENTRY;
+}
+EXPORT_SYMBOL(rtl_cam_get_free_entry);
+
+void rtl_cam_del_entry(struct ieee80211_hw *hw, u8 *sta_addr)
+{
+        struct rtl_priv *rtlpriv = rtl_priv(hw);
+        u32 bitmap;
+        u8 i, *addr;
+
+        if (NULL == sta_addr) {
+                RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+                        ("sta_addr is NULL.\n"));
+        }
+
+        if ((sta_addr[0]|sta_addr[1]|sta_addr[2]|sta_addr[3]|\
+                                sta_addr[4]|sta_addr[5]) == 0) {
+                RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+                        ("sta_addr is 00:00:00:00:00:00.\n"));
+                return;
+        }
+        /* Does STA already exist? */
+        for (i = 4; i < TOTAL_CAM_ENTRY; i++) {
+                addr = rtlpriv->sec.hwsec_cam_sta_addr[i];
+                bitmap = (rtlpriv->sec.hwsec_cam_bitmap) >> i;
+                if (((bitmap & BIT(0)) == BIT(0)) &&
+                    (memcmp(addr, sta_addr, ETH_ALEN) == 0)) {
+                        /* Remove from HW Security CAM */
+                        memset(rtlpriv->sec.hwsec_cam_sta_addr[i], 0, ETH_ALEN);
+                        rtlpriv->sec.hwsec_cam_bitmap &= ~(BIT(0) << i);
+                        printk(KERN_INFO "&&&&&&&&&del entry %d\n", i);
+                }
+        }
+        return;
+}
+EXPORT_SYMBOL(rtl_cam_del_entry);
diff --git a/drivers/net/wireless/rtlwifi/cam.h b/drivers/net/wireless/rtlwifi/cam.h
index dd82f057d53..c62da4eefc7 100644
--- a/drivers/net/wireless/rtlwifi/cam.h
+++ b/drivers/net/wireless/rtlwifi/cam.h
@@ -23,12 +23,13 @@
  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  * Hsinchu 300, Taiwan.
  *
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
  *****************************************************************************/
 
 #ifndef __RTL_CAM_H_
 #define __RTL_CAM_H_
 
-#define TOTAL_CAM_ENTRY                                 32
 #define CAM_CONTENT_COUNT                               8
 
 #define CFG_DEFAULT_KEY                                 BIT(5)
@@ -49,5 +50,7 @@ int rtl_cam_delete_one_entry(struct ieee80211_hw *hw, u8 *mac_addr,
 void rtl_cam_mark_invalid(struct ieee80211_hw *hw, u8 uc_index);
 void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index);
 void rtl_cam_reset_sec_info(struct ieee80211_hw *hw);
+u8 rtl_cam_get_free_entry(struct ieee80211_hw *hw, u8 *sta_addr);
+void rtl_cam_del_entry(struct ieee80211_hw *hw, u8 *sta_addr);
 
 #endif