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Diffstat (limited to 'drivers/staging/rtl8192e/rtl8192e/rtl_cam.c')
-rw-r--r--drivers/staging/rtl8192e/rtl8192e/rtl_cam.c304
1 files changed, 304 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
new file mode 100644
index 000000000000..baf3b6342e44
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
@@ -0,0 +1,304 @@
+/******************************************************************************
+ * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
+ *
+ * Based on the r8180 driver, which is:
+ * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+******************************************************************************/
+#include "rtl_core.h"
+#include "r8192E_phy.h"
+#include "r8192E_phyreg.h"
+#include "r8190P_rtl8256.h" /* RTL8225 Radio frontend */
+#include "r8192E_cmdpkt.h"
+
+extern int hwwep;
+void CamResetAllEntry(struct net_device *dev)
+{
+ u32 ulcommand = 0;
+
+ ulcommand |= BIT31|BIT30;
+ write_nic_dword(dev, RWCAM, ulcommand);
+}
+
+void write_cam(struct net_device *dev, u8 addr, u32 data)
+{
+ write_nic_dword(dev, WCAMI, data);
+ write_nic_dword(dev, RWCAM, BIT31|BIT16|(addr&0xff));
+}
+
+u32 read_cam(struct net_device *dev, u8 addr)
+{
+ write_nic_dword(dev, RWCAM, 0x80000000|(addr&0xff));
+ return read_nic_dword(dev, 0xa8);
+}
+
+void EnableHWSecurityConfig8192(struct net_device *dev)
+{
+ u8 SECR_value = 0x0;
+ struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+ struct rtllib_device *ieee = priv->rtllib;
+ SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
+ if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) ||
+ (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) &&
+ (priv->rtllib->auth_mode != 2)) {
+ SECR_value |= SCR_RxUseDK;
+ SECR_value |= SCR_TxUseDK;
+ } else if ((ieee->iw_mode == IW_MODE_ADHOC) &&
+ (ieee->pairwise_key_type & (KEY_TYPE_CCMP |
+ KEY_TYPE_TKIP))) {
+ SECR_value |= SCR_RxUseDK;
+ SECR_value |= SCR_TxUseDK;
+ }
+
+
+ ieee->hwsec_active = 1;
+ if ((ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
+ ieee->hwsec_active = 0;
+ SECR_value &= ~SCR_RxDecEnable;
+ }
+
+ RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n",
+ __func__, ieee->hwsec_active, ieee->pairwise_key_type,
+ SECR_value);
+ write_nic_byte(dev, SECR, SECR_value);
+}
+
+void set_swcam(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
+ u8 *MacAddr, u8 DefaultKey, u32 *KeyContent, u8 is_mesh)
+{
+ struct r8192_priv *priv = rtllib_priv(dev);
+ struct rtllib_device *ieee = priv->rtllib;
+ RT_TRACE(COMP_DBG, "===========>%s():EntryNo is %d,KeyIndex is "
+ "%d,KeyType is %d,is_mesh is %d\n", __func__, EntryNo,
+ KeyIndex, KeyType, is_mesh);
+ if (!is_mesh) {
+ ieee->swcamtable[EntryNo].bused = true;
+ ieee->swcamtable[EntryNo].key_index = KeyIndex;
+ ieee->swcamtable[EntryNo].key_type = KeyType;
+ memcpy(ieee->swcamtable[EntryNo].macaddr, MacAddr, 6);
+ ieee->swcamtable[EntryNo].useDK = DefaultKey;
+ memcpy(ieee->swcamtable[EntryNo].key_buf, (u8 *)KeyContent, 16);
+ }
+}
+
+void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
+ u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
+{
+ u32 TargetCommand = 0;
+ u32 TargetContent = 0;
+ u16 usConfig = 0;
+ u8 i;
+ struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
+ enum rt_rf_power_state rtState;
+ rtState = priv->rtllib->eRFPowerState;
+ if (priv->rtllib->PowerSaveControl.bInactivePs) {
+ if (rtState == eRfOff) {
+ if (priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) {
+ RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",
+ __func__);
+ return ;
+ } else {
+ down(&priv->rtllib->ips_sem);
+ IPSLeave(dev);
+ up(&priv->rtllib->ips_sem);
+ }
+ }
+ }
+ priv->rtllib->is_set_key = true;
+ if (EntryNo >= TOTAL_CAM_ENTRY)
+ RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
+
+ RT_TRACE(COMP_SEC, "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d,"
+ "KeyType:%d, MacAddr %pM\n", dev, EntryNo, KeyIndex,
+ KeyType, MacAddr);
+
+ if (DefaultKey)
+ usConfig |= BIT15 | (KeyType<<2);
+ else
+ usConfig |= BIT15 | (KeyType<<2) | KeyIndex;
+
+
+ for (i = 0; i < CAM_CONTENT_COUNT; i++) {
+ TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
+ TargetCommand |= BIT31|BIT16;
+
+ if (i == 0) {
+ TargetContent = (u32)(*(MacAddr+0)) << 16 |
+ (u32)(*(MacAddr+1)) << 24 |
+ (u32)usConfig;
+
+ write_nic_dword(dev, WCAMI, TargetContent);
+ write_nic_dword(dev, RWCAM, TargetCommand);
+ } else if (i == 1) {
+ TargetContent = (u32)(*(MacAddr+2)) |
+ (u32)(*(MacAddr+3)) << 8 |
+ (u32)(*(MacAddr+4)) << 16 |
+ (u32)(*(MacAddr+5)) << 24;
+ write_nic_dword(dev, WCAMI, TargetContent);
+ write_nic_dword(dev, RWCAM, TargetCommand);
+ } else {
+ if (KeyContent != NULL) {
+ write_nic_dword(dev, WCAMI,
+ (u32)(*(KeyContent+i-2)));
+ write_nic_dword(dev, RWCAM, TargetCommand);
+ udelay(100);
+ }
+ }
+ }
+ RT_TRACE(COMP_SEC, "=========>after set key, usconfig:%x\n", usConfig);
+}
+
+void CAM_read_entry(struct net_device *dev, u32 iIndex)
+{
+ u32 target_command = 0;
+ u32 target_content = 0;
+ u8 entry_i = 0;
+ u32 ulStatus;
+ s32 i = 100;
+ for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) {
+ target_command = entry_i+CAM_CONTENT_COUNT*iIndex;
+ target_command = target_command | BIT31;
+
+ while ((i--) >= 0) {
+ ulStatus = read_nic_dword(dev, RWCAM);
+ if (ulStatus & BIT31)
+ continue;
+ else
+ break;
+ }
+ write_nic_dword(dev, RWCAM, target_command);
+ RT_TRACE(COMP_SEC, "CAM_read_entry(): WRITE A0: %x\n",
+ target_command);
+ target_content = read_nic_dword(dev, RCAMO);
+ RT_TRACE(COMP_SEC, "CAM_read_entry(): WRITE A8: %x\n",
+ target_content);
+ }
+ printk(KERN_INFO "\n");
+}
+
+void CamRestoreAllEntry(struct net_device *dev)
+{
+ u8 EntryId = 0;
+ struct r8192_priv *priv = rtllib_priv(dev);
+ u8 *MacAddr = priv->rtllib->current_network.bssid;
+
+ static u8 CAM_CONST_ADDR[4][6] = {
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
+ };
+ static u8 CAM_CONST_BROAD[] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ };
+
+ RT_TRACE(COMP_SEC, "CamRestoreAllEntry:\n");
+
+
+ if ((priv->rtllib->pairwise_key_type == KEY_TYPE_WEP40) ||
+ (priv->rtllib->pairwise_key_type == KEY_TYPE_WEP104)) {
+
+ for (EntryId = 0; EntryId < 4; EntryId++) {
+ MacAddr = CAM_CONST_ADDR[EntryId];
+ if (priv->rtllib->swcamtable[EntryId].bused) {
+ setKey(dev, EntryId , EntryId,
+ priv->rtllib->pairwise_key_type, MacAddr,
+ 0, (u32 *)(&priv->rtllib->swcamtable
+ [EntryId].key_buf[0]));
+ }
+ }
+
+ } else if (priv->rtllib->pairwise_key_type == KEY_TYPE_TKIP) {
+ if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
+ setKey(dev, 4, 0, priv->rtllib->pairwise_key_type,
+ (u8 *)dev->dev_addr, 0,
+ (u32 *)(&priv->rtllib->swcamtable[4].key_buf[0]));
+ } else {
+ setKey(dev, 4, 0, priv->rtllib->pairwise_key_type,
+ MacAddr, 0,
+ (u32 *)(&priv->rtllib->swcamtable[4].key_buf[0]));
+ }
+
+ } else if (priv->rtllib->pairwise_key_type == KEY_TYPE_CCMP) {
+ if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
+ setKey(dev, 4, 0,
+ priv->rtllib->pairwise_key_type,
+ (u8 *)dev->dev_addr, 0,
+ (u32 *)(&priv->rtllib->swcamtable[4].
+ key_buf[0]));
+ } else {
+ setKey(dev, 4, 0,
+ priv->rtllib->pairwise_key_type, MacAddr,
+ 0, (u32 *)(&priv->rtllib->swcamtable[4].
+ key_buf[0]));
+ }
+ }
+
+ if (priv->rtllib->group_key_type == KEY_TYPE_TKIP) {
+ MacAddr = CAM_CONST_BROAD;
+ for (EntryId = 1; EntryId < 4; EntryId++) {
+ if (priv->rtllib->swcamtable[EntryId].bused) {
+ setKey(dev, EntryId, EntryId,
+ priv->rtllib->group_key_type,
+ MacAddr, 0,
+ (u32 *)(&priv->rtllib->swcamtable[EntryId].key_buf[0])
+ );
+ }
+ }
+ if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
+ if (priv->rtllib->swcamtable[0].bused) {
+ setKey(dev, 0, 0,
+ priv->rtllib->group_key_type,
+ CAM_CONST_ADDR[0], 0,
+ (u32 *)(&priv->rtllib->swcamtable[0].key_buf[0])
+ );
+ } else {
+ RT_TRACE(COMP_ERR, "===>%s():ERR!! ADHOC TKIP "
+ ",but 0 entry is have no data\n",
+ __func__);
+ return;
+ }
+ }
+ } else if (priv->rtllib->group_key_type == KEY_TYPE_CCMP) {
+ MacAddr = CAM_CONST_BROAD;
+ for (EntryId = 1; EntryId < 4; EntryId++) {
+ if (priv->rtllib->swcamtable[EntryId].bused) {
+ setKey(dev, EntryId , EntryId,
+ priv->rtllib->group_key_type,
+ MacAddr, 0,
+ (u32 *)(&priv->rtllib->swcamtable[EntryId].key_buf[0]));
+ }
+ }
+
+ if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
+ if (priv->rtllib->swcamtable[0].bused) {
+ setKey(dev, 0 , 0,
+ priv->rtllib->group_key_type,
+ CAM_CONST_ADDR[0], 0,
+ (u32 *)(&priv->rtllib->swcamtable[0].key_buf[0]));
+ } else {
+ RT_TRACE(COMP_ERR, "===>%s():ERR!! ADHOC CCMP ,"
+ "but 0 entry is have no data\n",
+ __func__);
+ return;
+ }
+ }
+ }
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.