diff options
Diffstat (limited to 'drivers/staging/rtl8192e/rtl_cam.c')
-rw-r--r-- | drivers/staging/rtl8192e/rtl_cam.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/rtl_cam.c b/drivers/staging/rtl8192e/rtl_cam.c new file mode 100644 index 000000000000..baf3b6342e44 --- /dev/null +++ b/drivers/staging/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; + } + } + } +} |