[deliverable/linux.git] / drivers / net / wireless / rtlwifi / cam.c

/******************************************************************************
 *
 * 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 <wlanfae@realtek.com>
 * 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);
Commit	Line	Data
0c817338 LF	1	/******************************************************************************
	2	*
	3	* Copyright(c) 2009-2010 Realtek Corporation.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of version 2 of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program; if not, write to the Free Software Foundation, Inc.,
	16	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	17	*
	18	* The full GNU General Public License is included in this distribution in the
	19	* file called LICENSE.
	20	*
	21	* Contact Information:
	22	* wlanfae <wlanfae@realtek.com>
	23	* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
	24	* Hsinchu 300, Taiwan.
	25	*
	26	*****************************************************************************/
	27
	28	#include "wifi.h"
	29	#include "cam.h"
	30
	31	void rtl_cam_reset_sec_info(struct ieee80211_hw *hw)
	32	{
	33	struct rtl_priv *rtlpriv = rtl_priv(hw);
	34
	35	rtlpriv->sec.use_defaultkey = false;
	36	rtlpriv->sec.pairwise_enc_algorithm = NO_ENCRYPTION;
	37	rtlpriv->sec.group_enc_algorithm = NO_ENCRYPTION;
	38	memset(rtlpriv->sec.key_buf, 0, KEY_BUF_SIZE * MAX_KEY_LEN);
	39	memset(rtlpriv->sec.key_len, 0, KEY_BUF_SIZE);
	40	rtlpriv->sec.pairwise_key = NULL;
	41	}
	42
	43	static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no,
	44	u8 mac_addr, u8 key_cont_128, u16 us_config)
	45	{
	46	struct rtl_priv *rtlpriv = rtl_priv(hw);
	47
	48	u32 target_command;
	49	u32 target_content = 0;
	50	u8 entry_i;
	51
	52	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
	53	("key_cont_128:\n %x:%x:%x:%x:%x:%x\n",
	54	key_cont_128[0], key_cont_128[1],
	55	key_cont_128[2], key_cont_128[3],
	56	key_cont_128[4], key_cont_128[5]));
	57
	58	for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) {
	59	target_command = entry_i + CAM_CONTENT_COUNT * entry_no;
	60	target_command = target_command \| BIT(31) \| BIT(16);
	61
	62	if (entry_i == 0) {
	63	target_content = (u32) (*(mac_addr + 0)) << 16 \|
	64	(u32) (*(mac_addr + 1)) << 24 \| (u32) us_config;
65
66	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI],
67	target_content);
68	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
69	target_command);
70
71	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
72	("rtl_cam_program_entry(): "
73	"WRITE %x: %x\n",
74	rtlpriv->cfg->maps[WCAMI], target_content));
75	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
76	("The Key ID is %d\n", entry_no));
77	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
78	("rtl_cam_program_entry(): "
79	"WRITE %x: %x\n",
80	rtlpriv->cfg->maps[RWCAM], target_command));
81
82	} else if (entry_i == 1) {
83
84	target_content = (u32) (*(mac_addr + 5)) << 24 \|
85	(u32) (*(mac_addr + 4)) << 16 \|
86	(u32) (*(mac_addr + 3)) << 8 \|
87	(u32) (*(mac_addr + 2));
88
89	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI],
90	target_content);
91	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
92	target_command);
93
94	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
95	("rtl_cam_program_entry(): WRITE A4: %x\n",
96	target_content));
97	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
98	("rtl_cam_program_entry(): WRITE A0: %x\n",
99	target_command));
100
101	} else {
102
103	target_content =
104	(u32) ((key_cont_128 + (entry_i 4 - 8) + 3)) <<
105	24 \| (u32) ((key_cont_128 + (entry_i 4 - 8) + 2))
106	<< 16 \|
107	(u32) ((key_cont_128 + (entry_i 4 - 8) + 1)) << 8
108	\| (u32) ((key_cont_128 + (entry_i 4 - 8) + 0));
109
110	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI],
111	target_content);
112	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
113	target_command);
114	udelay(100);
115
116	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
117	("rtl_cam_program_entry(): WRITE A4: %x\n",
118	target_content));
119	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
120	("rtl_cam_program_entry(): WRITE A0: %x\n",
121	target_command));
122	}
123	}
124
125	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
126	("after set key, usconfig:%x\n", us_config));
127	}
128
129	u8 rtl_cam_add_one_entry(struct ieee80211_hw hw, u8 mac_addr,
130	u32 ul_key_id, u32 ul_entry_idx, u32 ul_enc_alg,
131	u32 ul_default_key, u8 *key_content)
132	{
133	u32 us_config;
134	struct rtl_priv *rtlpriv = rtl_priv(hw);
135
136	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
137	("EntryNo:%x, ulKeyId=%x, ulEncAlg=%x, "
138	"ulUseDK=%x MacAddr" MAC_FMT "\n",
139	ul_entry_idx, ul_key_id, ul_enc_alg,
140	ul_default_key, MAC_ARG(mac_addr)));
141
142	if (ul_key_id == TOTAL_CAM_ENTRY) {
143	RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
144	("<=== ulKeyId exceed!\n"));
145	return 0;
146	}
147
148	if (ul_default_key == 1) {
149	us_config = CFG_VALID \| ((u16) (ul_enc_alg) << 2);
150	} else {
151	us_config = CFG_VALID \| ((ul_enc_alg) << 2) \| ul_key_id;
152	}
153
154	rtl_cam_program_entry(hw, ul_entry_idx, mac_addr,
155	(u8 *) key_content, us_config);
156
157	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("<===\n"));
158
159	return 1;
160
161	}
162	EXPORT_SYMBOL(rtl_cam_add_one_entry);
163
164	int rtl_cam_delete_one_entry(struct ieee80211_hw *hw,
165	u8 *mac_addr, u32 ul_key_id)
166	{
167	u32 ul_command;
168	struct rtl_priv *rtlpriv = rtl_priv(hw);
169
170	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("key_idx:%d\n", ul_key_id));
171
172	ul_command = ul_key_id * CAM_CONTENT_COUNT;
173	ul_command = ul_command \| BIT(31) \| BIT(16);
174
175	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], 0);
176	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
177
178	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
179	("rtl_cam_delete_one_entry(): WRITE A4: %x\n", 0));
180	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
181	("rtl_cam_delete_one_entry(): WRITE A0: %x\n", ul_command));
182
183	return 0;
184
185	}
186	EXPORT_SYMBOL(rtl_cam_delete_one_entry);
187
188	void rtl_cam_reset_all_entry(struct ieee80211_hw *hw)
189	{
190	u32 ul_command;
191	struct rtl_priv *rtlpriv = rtl_priv(hw);
192
193	ul_command = BIT(31) \| BIT(30);
194	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
195	}
196	EXPORT_SYMBOL(rtl_cam_reset_all_entry);
197
198	void rtl_cam_mark_invalid(struct ieee80211_hw *hw, u8 uc_index)
199	{
200	struct rtl_priv *rtlpriv = rtl_priv(hw);
201
202	u32 ul_command;
203	u32 ul_content;
204	u32 ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES];
205
206	switch (rtlpriv->sec.pairwise_enc_algorithm) {
207	case WEP40_ENCRYPTION:
208	ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_WEP40];
209	break;
210	case WEP104_ENCRYPTION:
211	ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_WEP104];
212	break;
213	case TKIP_ENCRYPTION:
214	ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_TKIP];
215	break;
216	case AESCCMP_ENCRYPTION:
217	ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES];
218	break;
219	default:
220	ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES];
221	}
222
223	ul_content = (uc_index & 3) \| ((u16) (ul_enc_algo) << 2);
224
225	ul_content \|= BIT(15);
226	ul_command = CAM_CONTENT_COUNT * uc_index;
227	ul_command = ul_command \| BIT(31) \| BIT(16);
228
229	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], ul_content);
230	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
231
232	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
233	("rtl_cam_mark_invalid(): WRITE A4: %x\n", ul_content));
234	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
235	("rtl_cam_mark_invalid(): WRITE A0: %x\n", ul_command));
236	}
237	EXPORT_SYMBOL(rtl_cam_mark_invalid);
238
239	void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index)
240	{
241	struct rtl_priv *rtlpriv = rtl_priv(hw);
242
243	u32 ul_command;
244	u32 ul_content;
245	u32 ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
246	u8 entry_i;
247
248	switch (rtlpriv->sec.pairwise_enc_algorithm) {
249	case WEP40_ENCRYPTION:
250	ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_WEP40];
251	break;
252	case WEP104_ENCRYPTION:
253	ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_WEP104];
254	break;
255	case TKIP_ENCRYPTION:
256	ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_TKIP];
257	break;
258	case AESCCMP_ENCRYPTION:
259	ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
260	break;
261	default:
262	ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
263	}
264
265	for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) {
266
267	if (entry_i == 0) {
268	ul_content =
269	(uc_index & 0x03) \| ((u16) (ul_encalgo) << 2);
270	ul_content \|= BIT(15);
271
272	} else {
273	ul_content = 0;
274	}
275
276	ul_command = CAM_CONTENT_COUNT * uc_index + entry_i;
277	ul_command = ul_command \| BIT(31) \| BIT(16);
278
279	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], ul_content);
280	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
281
282	RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
283	("rtl_cam_empty_entry(): WRITE A4: %x\n",
284	ul_content));
285	RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
286	("rtl_cam_empty_entry(): WRITE A0: %x\n",
287	ul_command));
288	}
289
290	}
291	EXPORT_SYMBOL(rtl_cam_empty_entry);