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1 /*
2  * Shared Atheros AR9170 Header
3  *
4  * Firmware command interface definitions
5  *
6  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
7  * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; see the file COPYING.  If not, see
20  * http://www.gnu.org/licenses/.
21  *
22  * This file incorporates work covered by the following copyright and
23  * permission notice:
24  *    Copyright (c) 2007-2008 Atheros Communications, Inc.
25  *
26  *    Permission to use, copy, modify, and/or distribute this software for any
27  *    purpose with or without fee is hereby granted, provided that the above
28  *    copyright notice and this permission notice appear in all copies.
29  *
30  *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
31  *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
32  *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
33  *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
34  *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
35  *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
36  *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
37  */
38 
39 #ifndef __CARL9170_SHARED_FWCMD_H
40 #define __CARL9170_SHARED_FWCMD_H
41 
42 #define	CARL9170_MAX_CMD_LEN		64
43 #define	CARL9170_MAX_CMD_PAYLOAD_LEN	60
44 
45 #define CARL9170FW_API_MIN_VER		1
46 #define CARL9170FW_API_MAX_VER		1
47 
48 enum carl9170_cmd_oids {
49 	CARL9170_CMD_RREG		= 0x00,
50 	CARL9170_CMD_WREG		= 0x01,
51 	CARL9170_CMD_ECHO		= 0x02,
52 	CARL9170_CMD_SWRST		= 0x03,
53 	CARL9170_CMD_REBOOT		= 0x04,
54 	CARL9170_CMD_BCN_CTRL		= 0x05,
55 	CARL9170_CMD_READ_TSF		= 0x06,
56 	CARL9170_CMD_RX_FILTER		= 0x07,
57 	CARL9170_CMD_WOL		= 0x08,
58 	CARL9170_CMD_TALLY		= 0x09,
59 
60 	/* CAM */
61 	CARL9170_CMD_EKEY		= 0x10,
62 	CARL9170_CMD_DKEY		= 0x11,
63 
64 	/* RF / PHY */
65 	CARL9170_CMD_FREQUENCY		= 0x20,
66 	CARL9170_CMD_RF_INIT		= 0x21,
67 	CARL9170_CMD_SYNTH		= 0x22,
68 	CARL9170_CMD_FREQ_START		= 0x23,
69 	CARL9170_CMD_PSM		= 0x24,
70 
71 	/* Asychronous command flag */
72 	CARL9170_CMD_ASYNC_FLAG		= 0x40,
73 	CARL9170_CMD_WREG_ASYNC		= (CARL9170_CMD_WREG |
74 					   CARL9170_CMD_ASYNC_FLAG),
75 	CARL9170_CMD_REBOOT_ASYNC	= (CARL9170_CMD_REBOOT |
76 					   CARL9170_CMD_ASYNC_FLAG),
77 	CARL9170_CMD_BCN_CTRL_ASYNC	= (CARL9170_CMD_BCN_CTRL |
78 					   CARL9170_CMD_ASYNC_FLAG),
79 	CARL9170_CMD_PSM_ASYNC		= (CARL9170_CMD_PSM |
80 					   CARL9170_CMD_ASYNC_FLAG),
81 
82 	/* responses and traps */
83 	CARL9170_RSP_FLAG		= 0xc0,
84 	CARL9170_RSP_PRETBTT		= 0xc0,
85 	CARL9170_RSP_TXCOMP		= 0xc1,
86 	CARL9170_RSP_BEACON_CONFIG	= 0xc2,
87 	CARL9170_RSP_ATIM		= 0xc3,
88 	CARL9170_RSP_WATCHDOG		= 0xc6,
89 	CARL9170_RSP_TEXT		= 0xca,
90 	CARL9170_RSP_HEXDUMP		= 0xcc,
91 	CARL9170_RSP_RADAR		= 0xcd,
92 	CARL9170_RSP_GPIO		= 0xce,
93 	CARL9170_RSP_BOOT		= 0xcf,
94 };
95 
96 struct carl9170_set_key_cmd {
97 	__le16		user;
98 	__le16		keyId;
99 	__le16		type;
100 	u8		macAddr[6];
101 	u32		key[4];
102 } __packed __aligned(4);
103 #define CARL9170_SET_KEY_CMD_SIZE		28
104 
105 struct carl9170_disable_key_cmd {
106 	__le16		user;
107 	__le16		padding;
108 } __packed __aligned(4);
109 #define CARL9170_DISABLE_KEY_CMD_SIZE		4
110 
111 struct carl9170_u32_list {
112 	u32	vals[0];
113 } __packed;
114 
115 struct carl9170_reg_list {
116 	__le32		regs[0];
117 } __packed;
118 
119 struct carl9170_write_reg {
120 	struct {
121 		__le32		addr;
122 		__le32		val;
123 	} regs[0] __packed;
124 } __packed;
125 
126 #define	CARL9170FW_PHY_HT_ENABLE		0x4
127 #define	CARL9170FW_PHY_HT_DYN2040		0x8
128 #define	CARL9170FW_PHY_HT_EXT_CHAN_OFF		0x3
129 #define	CARL9170FW_PHY_HT_EXT_CHAN_OFF_S	2
130 
131 struct carl9170_rf_init {
132 	__le32		freq;
133 	u8		ht_settings;
134 	u8		padding2[3];
135 	__le32		delta_slope_coeff_exp;
136 	__le32		delta_slope_coeff_man;
137 	__le32		delta_slope_coeff_exp_shgi;
138 	__le32		delta_slope_coeff_man_shgi;
139 	__le32		finiteLoopCount;
140 } __packed;
141 #define CARL9170_RF_INIT_SIZE		28
142 
143 struct carl9170_rf_init_result {
144 	__le32		ret;		/* AR9170_PHY_REG_AGC_CONTROL */
145 } __packed;
146 #define	CARL9170_RF_INIT_RESULT_SIZE	4
147 
148 #define	CARL9170_PSM_SLEEP		0x1000
149 #define	CARL9170_PSM_SOFTWARE		0
150 #define	CARL9170_PSM_WAKE		0 /* internally used. */
151 #define	CARL9170_PSM_COUNTER		0xfff
152 #define	CARL9170_PSM_COUNTER_S		0
153 
154 struct carl9170_psm {
155 	__le32		state;
156 } __packed;
157 #define CARL9170_PSM_SIZE		4
158 
159 /*
160  * Note: If a bit in rx_filter is set, then it
161  * means that the particular frames which matches
162  * the condition are FILTERED/REMOVED/DISCARDED!
163  * (This is can be a bit confusing, especially
164  * because someone people think it's the exact
165  * opposite way, so watch out!)
166  */
167 struct carl9170_rx_filter_cmd {
168 	__le32		rx_filter;
169 } __packed;
170 #define CARL9170_RX_FILTER_CMD_SIZE	4
171 
172 #define CARL9170_RX_FILTER_BAD		0x01
173 #define CARL9170_RX_FILTER_OTHER_RA	0x02
174 #define CARL9170_RX_FILTER_DECRY_FAIL	0x04
175 #define CARL9170_RX_FILTER_CTL_OTHER	0x08
176 #define CARL9170_RX_FILTER_CTL_PSPOLL	0x10
177 #define CARL9170_RX_FILTER_CTL_BACKR	0x20
178 #define CARL9170_RX_FILTER_MGMT		0x40
179 #define CARL9170_RX_FILTER_DATA		0x80
180 #define CARL9170_RX_FILTER_EVERYTHING	(~0)
181 
182 struct carl9170_bcn_ctrl_cmd {
183 	__le32		vif_id;
184 	__le32		mode;
185 	__le32		bcn_addr;
186 	__le32		bcn_len;
187 } __packed;
188 #define CARL9170_BCN_CTRL_CMD_SIZE	16
189 
190 #define CARL9170_BCN_CTRL_DRAIN	0
191 #define CARL9170_BCN_CTRL_CAB_TRIGGER	1
192 
193 struct carl9170_wol_cmd {
194 	__le32		flags;
195 	u8		mac[6];
196 	u8		bssid[6];
197 	__le32		null_interval;
198 	__le32		free_for_use2;
199 	__le32		mask;
200 	u8		pattern[32];
201 } __packed;
202 
203 #define CARL9170_WOL_CMD_SIZE		60
204 
205 #define CARL9170_WOL_DISCONNECT		1
206 #define CARL9170_WOL_MAGIC_PKT		2
207 
208 struct carl9170_cmd_head {
209 	union {
210 		struct {
211 			u8	len;
212 			u8	cmd;
213 			u8	seq;
214 			u8	ext;
215 		} __packed;
216 
217 		u32 hdr_data;
218 	} __packed;
219 } __packed;
220 
221 struct carl9170_cmd {
222 	struct carl9170_cmd_head hdr;
223 	union {
224 		struct carl9170_set_key_cmd	setkey;
225 		struct carl9170_disable_key_cmd	disablekey;
226 		struct carl9170_u32_list	echo;
227 		struct carl9170_reg_list	rreg;
228 		struct carl9170_write_reg	wreg;
229 		struct carl9170_rf_init		rf_init;
230 		struct carl9170_psm		psm;
231 		struct carl9170_wol_cmd		wol;
232 		struct carl9170_bcn_ctrl_cmd	bcn_ctrl;
233 		struct carl9170_rx_filter_cmd	rx_filter;
234 		u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN];
235 	} __packed;
236 } __packed __aligned(4);
237 
238 #define	CARL9170_TX_STATUS_QUEUE	3
239 #define	CARL9170_TX_STATUS_QUEUE_S	0
240 #define	CARL9170_TX_STATUS_RIX_S	2
241 #define	CARL9170_TX_STATUS_RIX		(3 << CARL9170_TX_STATUS_RIX_S)
242 #define	CARL9170_TX_STATUS_TRIES_S	4
243 #define	CARL9170_TX_STATUS_TRIES	(7 << CARL9170_TX_STATUS_TRIES_S)
244 #define	CARL9170_TX_STATUS_SUCCESS	0x80
245 
246 #ifdef __CARL9170FW__
247 /*
248  * NOTE:
249  * Both structs [carl9170_tx_status and _carl9170_tx_status]
250  * need to be "bit for bit" in sync.
251  */
252 struct carl9170_tx_status {
253 	/*
254 	 * Beware of compiler bugs in all gcc pre 4.4!
255 	 */
256 
257 	u8 cookie;
258 	u8 queue:2;
259 	u8 rix:2;
260 	u8 tries:3;
261 	u8 success:1;
262 } __packed;
263 #endif /* __CARL9170FW__ */
264 
265 struct _carl9170_tx_status {
266 	/*
267 	 * This version should be immune to all alignment bugs.
268 	 */
269 
270 	u8 cookie;
271 	u8 info;
272 } __packed;
273 #define CARL9170_TX_STATUS_SIZE		2
274 
275 #define	CARL9170_RSP_TX_STATUS_NUM	(CARL9170_MAX_CMD_PAYLOAD_LEN /	\
276 					 sizeof(struct _carl9170_tx_status))
277 
278 #define	CARL9170_TX_MAX_RATE_TRIES	7
279 
280 #define	CARL9170_TX_MAX_RATES		4
281 #define	CARL9170_TX_MAX_RETRY_RATES	(CARL9170_TX_MAX_RATES - 1)
282 #define	CARL9170_ERR_MAGIC		"ERR:"
283 #define	CARL9170_BUG_MAGIC		"BUG:"
284 
285 struct carl9170_gpio {
286 	__le32 gpio;
287 } __packed;
288 #define CARL9170_GPIO_SIZE		4
289 
290 struct carl9170_tsf_rsp {
291 	union {
292 		__le32 tsf[2];
293 		__le64 tsf_64;
294 	} __packed;
295 } __packed;
296 #define CARL9170_TSF_RSP_SIZE		8
297 
298 struct carl9170_tally_rsp {
299 	__le32 active;
300 	__le32 cca;
301 	__le32 tx_time;
302 	__le32 rx_total;
303 	__le32 rx_overrun;
304 	__le32 tick;
305 } __packed;
306 
307 struct carl9170_rsp {
308 	struct carl9170_cmd_head hdr;
309 
310 	union {
311 		struct carl9170_rf_init_result	rf_init_res;
312 		struct carl9170_u32_list	rreg_res;
313 		struct carl9170_u32_list	echo;
314 #ifdef __CARL9170FW__
315 		struct carl9170_tx_status	tx_status[0];
316 #endif /* __CARL9170FW__ */
317 		struct _carl9170_tx_status	_tx_status[0];
318 		struct carl9170_gpio		gpio;
319 		struct carl9170_tsf_rsp		tsf;
320 		struct carl9170_psm		psm;
321 		struct carl9170_tally_rsp	tally;
322 		u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN];
323 	} __packed;
324 } __packed __aligned(4);
325 
326 #endif /* __CARL9170_SHARED_FWCMD_H */
327