Return-path: Received: from mail-pv0-f174.google.com ([74.125.83.174]:46959 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754805Ab0LHRNi (ORCPT ); Wed, 8 Dec 2010 12:13:38 -0500 Received: by pva4 with SMTP id 4so304207pva.19 for ; Wed, 08 Dec 2010 09:13:37 -0800 (PST) From: Larry Finger To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, chaoming_li@realsil.com.cn, Larry Finger Subject: [PATCH 03/22] rtl8192ce: Add files to rtlwifi - Part 3: cam.{c,h} Date: Wed, 8 Dec 2010 11:12:33 -0600 Message-Id: <1291828372-25159-4-git-send-email-Larry.Finger@lwfinger.net> In-Reply-To: <1291828372-25159-1-git-send-email-Larry.Finger@lwfinger.net> References: <1291828372-25159-1-git-send-email-Larry.Finger@lwfinger.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: Signed-off-by: Larry Finger --- drivers/net/wireless/rtlwifi/cam.c | 291 ++++++++++++++++++++++++++++++++++++ drivers/net/wireless/rtlwifi/cam.h | 53 +++++++ 2 files changed, 344 insertions(+), 0 deletions(-) create mode 100644 drivers/net/wireless/rtlwifi/cam.c create mode 100644 drivers/net/wireless/rtlwifi/cam.h diff --git a/drivers/net/wireless/rtlwifi/cam.c b/drivers/net/wireless/rtlwifi/cam.c new file mode 100644 index 0000000..52c9c13 --- /dev/null +++ b/drivers/net/wireless/rtlwifi/cam.c @@ -0,0 +1,291 @@ +/****************************************************************************** + * + * Copyright(c) 2009-2010 Realtek Corporation. + * + * 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 + * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, + * Hsinchu 300, Taiwan. + * + *****************************************************************************/ + +#include "wifi.h" +#include "cam.h" + +void rtl_cam_reset_sec_info(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + rtlpriv->sec.use_defaultkey = false; + rtlpriv->sec.pairwise_enc_algorithm = NO_ENCRYPTION; + rtlpriv->sec.group_enc_algorithm = NO_ENCRYPTION; + memset(rtlpriv->sec.key_buf, 0, KEY_BUF_SIZE * MAX_KEY_LEN); + memset(rtlpriv->sec.key_len, 0, KEY_BUF_SIZE); + rtlpriv->sec.pairwise_key = NULL; +} + +static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no, + u8 *mac_addr, u8 *key_cont_128, u16 us_config) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + u32 target_command; + u32 target_content = 0; + u8 entry_i; + + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("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], + key_cont_128[4], key_cont_128[5])); + + for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) { + target_command = entry_i + CAM_CONTENT_COUNT * entry_no; + target_command = target_command | BIT(31) | BIT(16); + + if (entry_i == 0) { + target_content = (u32) (*(mac_addr + 0)) << 16 | + (u32) (*(mac_addr + 1)) << 24 | (u32) us_config; + + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], + target_content); + 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", + rtlpriv->cfg->maps[WCAMI], target_content)); + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("The Key ID is %d\n", entry_no)); + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("rtl_cam_program_entry(): " + "WRITE %x: %x\n", + rtlpriv->cfg->maps[RWCAM], target_command)); + + } else if (entry_i == 1) { + + target_content = (u32) (*(mac_addr + 5)) << 24 | + (u32) (*(mac_addr + 4)) << 16 | + (u32) (*(mac_addr + 3)) << 8 | + (u32) (*(mac_addr + 2)); + + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], + target_content); + 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)); + + } else { + + target_content = + (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 3)) << + 24 | (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 2)) + << 16 | + (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 1)) << 8 + | (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 0)); + + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], + target_content); + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], + 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_DMESG, + ("after set key, usconfig:%x\n", us_config)); +} + +u8 rtl_cam_add_one_entry(struct ieee80211_hw *hw, u8 *mac_addr, + u32 ul_key_id, u32 ul_entry_idx, u32 ul_enc_alg, + u32 ul_default_key, u8 *key_content) +{ + u32 us_config; + struct rtl_priv *rtlpriv = rtl_priv(hw); + + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("EntryNo:%x, ulKeyId=%x, ulEncAlg=%x, " + "ulUseDK=%x MacAddr" MAC_FMT "\n", + ul_entry_idx, ul_key_id, ul_enc_alg, + ul_default_key, MAC_ARG(mac_addr))); + + if (ul_key_id == TOTAL_CAM_ENTRY) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, + ("<=== ulKeyId exceed!\n")); + return 0; + } + + if (ul_default_key == 1) { + us_config = CFG_VALID | ((u16) (ul_enc_alg) << 2); + } else { + us_config = CFG_VALID | ((ul_enc_alg) << 2) | ul_key_id; + } + + rtl_cam_program_entry(hw, ul_entry_idx, mac_addr, + (u8 *) key_content, us_config); + + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("<===\n")); + + return 1; + +} +EXPORT_SYMBOL(rtl_cam_add_one_entry); + +int rtl_cam_delete_one_entry(struct ieee80211_hw *hw, + u8 *mac_addr, u32 ul_key_id) +{ + u32 ul_command; + struct rtl_priv *rtlpriv = rtl_priv(hw); + + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("key_idx:%d\n", ul_key_id)); + + ul_command = ul_key_id * CAM_CONTENT_COUNT; + ul_command = ul_command | BIT(31) | BIT(16); + + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], 0); + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command); + + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("rtl_cam_delete_one_entry(): WRITE A4: %x\n", 0)); + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("rtl_cam_delete_one_entry(): WRITE A0: %x\n", ul_command)); + + return 0; + +} +EXPORT_SYMBOL(rtl_cam_delete_one_entry); + +void rtl_cam_reset_all_entry(struct ieee80211_hw *hw) +{ + u32 ul_command; + struct rtl_priv *rtlpriv = rtl_priv(hw); + + ul_command = BIT(31) | BIT(30); + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command); +} +EXPORT_SYMBOL(rtl_cam_reset_all_entry); + +void rtl_cam_mark_invalid(struct ieee80211_hw *hw, u8 uc_index) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + u32 ul_command; + u32 ul_content; + u32 ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES]; + + switch (rtlpriv->sec.pairwise_enc_algorithm) { + case WEP40_ENCRYPTION: + ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_WEP40]; + break; + case WEP104_ENCRYPTION: + ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_WEP104]; + break; + case TKIP_ENCRYPTION: + ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_TKIP]; + break; + case AESCCMP_ENCRYPTION: + ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES]; + break; + default: + ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES]; + } + + ul_content = (uc_index & 3) | ((u16) (ul_enc_algo) << 2); + + ul_content |= BIT(15); + ul_command = CAM_CONTENT_COUNT * uc_index; + ul_command = ul_command | BIT(31) | BIT(16); + + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], ul_content); + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command); + + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("rtl_cam_mark_invalid(): WRITE A4: %x\n", ul_content)); + RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, + ("rtl_cam_mark_invalid(): WRITE A0: %x\n", ul_command)); +} +EXPORT_SYMBOL(rtl_cam_mark_invalid); + +void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + u32 ul_command; + u32 ul_content; + u32 ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES]; + u8 entry_i; + + switch (rtlpriv->sec.pairwise_enc_algorithm) { + case WEP40_ENCRYPTION: + ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_WEP40]; + break; + case WEP104_ENCRYPTION: + ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_WEP104]; + break; + case TKIP_ENCRYPTION: + ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_TKIP]; + break; + case AESCCMP_ENCRYPTION: + ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES]; + break; + default: + ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES]; + } + + for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) { + + if (entry_i == 0) { + ul_content = + (uc_index & 0x03) | ((u16) (ul_encalgo) << 2); + ul_content |= BIT(15); + + } else { + ul_content = 0; + } + + ul_command = CAM_CONTENT_COUNT * uc_index + entry_i; + ul_command = ul_command | BIT(31) | BIT(16); + + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], ul_content); + rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command); + + RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD, + ("rtl_cam_empty_entry(): WRITE A4: %x\n", + ul_content)); + RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD, + ("rtl_cam_empty_entry(): WRITE A0: %x\n", + ul_command)); + } + +} +EXPORT_SYMBOL(rtl_cam_empty_entry); diff --git a/drivers/net/wireless/rtlwifi/cam.h b/drivers/net/wireless/rtlwifi/cam.h new file mode 100644 index 0000000..dd82f05 --- /dev/null +++ b/drivers/net/wireless/rtlwifi/cam.h @@ -0,0 +1,53 @@ +/****************************************************************************** + * + * Copyright(c) 2009-2010 Realtek Corporation. + * + * 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 + * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, + * Hsinchu 300, Taiwan. + * + *****************************************************************************/ + +#ifndef __RTL_CAM_H_ +#define __RTL_CAM_H_ + +#define TOTAL_CAM_ENTRY 32 +#define CAM_CONTENT_COUNT 8 + +#define CFG_DEFAULT_KEY BIT(5) +#define CFG_VALID BIT(15) + +#define PAIRWISE_KEYIDX 0 +#define CAM_PAIRWISE_KEY_POSITION 4 + +#define CAM_CONFIG_USEDK 1 +#define CAM_CONFIG_NO_USEDK 0 + +extern void rtl_cam_reset_all_entry(struct ieee80211_hw *hw); +extern u8 rtl_cam_add_one_entry(struct ieee80211_hw *hw, u8 *mac_addr, + u32 ul_key_id, u32 ul_entry_idx, u32 ul_enc_alg, + u32 ul_default_key, u8 *key_content); +int rtl_cam_delete_one_entry(struct ieee80211_hw *hw, u8 *mac_addr, + u32 ul_key_id); +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); + +#endif -- 1.7.1