xref: /openbmc/linux/drivers/net/wireless/ath/carl9170/fwcmd.h (revision baa7eb025ab14f3cba2e35c0a8648f9c9f01d24f)
1 /*
2  * Shared Atheros AR9170 Header
3  *
4  * Firmware command interface definitions
5  *
6  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
7  * Copyright 2009, 2010, 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 
58 	/* CAM */
59 	CARL9170_CMD_EKEY		= 0x10,
60 	CARL9170_CMD_DKEY		= 0x11,
61 
62 	/* RF / PHY */
63 	CARL9170_CMD_FREQUENCY		= 0x20,
64 	CARL9170_CMD_RF_INIT		= 0x21,
65 	CARL9170_CMD_SYNTH		= 0x22,
66 	CARL9170_CMD_FREQ_START		= 0x23,
67 	CARL9170_CMD_PSM		= 0x24,
68 
69 	/* Asychronous command flag */
70 	CARL9170_CMD_ASYNC_FLAG		= 0x40,
71 	CARL9170_CMD_WREG_ASYNC		= (CARL9170_CMD_WREG |
72 					   CARL9170_CMD_ASYNC_FLAG),
73 	CARL9170_CMD_REBOOT_ASYNC	= (CARL9170_CMD_REBOOT |
74 					   CARL9170_CMD_ASYNC_FLAG),
75 	CARL9170_CMD_BCN_CTRL_ASYNC	= (CARL9170_CMD_BCN_CTRL |
76 					   CARL9170_CMD_ASYNC_FLAG),
77 	CARL9170_CMD_PSM_ASYNC		= (CARL9170_CMD_PSM |
78 					   CARL9170_CMD_ASYNC_FLAG),
79 
80 	/* responses and traps */
81 	CARL9170_RSP_FLAG		= 0xc0,
82 	CARL9170_RSP_PRETBTT		= 0xc0,
83 	CARL9170_RSP_TXCOMP		= 0xc1,
84 	CARL9170_RSP_BEACON_CONFIG	= 0xc2,
85 	CARL9170_RSP_ATIM		= 0xc3,
86 	CARL9170_RSP_WATCHDOG		= 0xc6,
87 	CARL9170_RSP_TEXT		= 0xca,
88 	CARL9170_RSP_HEXDUMP		= 0xcc,
89 	CARL9170_RSP_RADAR		= 0xcd,
90 	CARL9170_RSP_GPIO		= 0xce,
91 	CARL9170_RSP_BOOT		= 0xcf,
92 };
93 
94 struct carl9170_set_key_cmd {
95 	__le16		user;
96 	__le16		keyId;
97 	__le16		type;
98 	u8		macAddr[6];
99 	u32		key[4];
100 } __packed __aligned(4);
101 #define CARL9170_SET_KEY_CMD_SIZE		28
102 
103 struct carl9170_disable_key_cmd {
104 	__le16		user;
105 	__le16		padding;
106 } __packed __aligned(4);
107 #define CARL9170_DISABLE_KEY_CMD_SIZE		4
108 
109 struct carl9170_u32_list {
110 	u32	vals[0];
111 } __packed;
112 
113 struct carl9170_reg_list {
114 	__le32		regs[0];
115 } __packed;
116 
117 struct carl9170_write_reg {
118 	struct {
119 		__le32		addr;
120 		__le32		val;
121 	} regs[0] __packed;
122 } __packed;
123 
124 #define	CARL9170FW_PHY_HT_ENABLE		0x4
125 #define	CARL9170FW_PHY_HT_DYN2040		0x8
126 #define	CARL9170FW_PHY_HT_EXT_CHAN_OFF		0x3
127 #define	CARL9170FW_PHY_HT_EXT_CHAN_OFF_S	2
128 
129 struct carl9170_rf_init {
130 	__le32		freq;
131 	u8		ht_settings;
132 	u8		padding2[3];
133 	__le32		delta_slope_coeff_exp;
134 	__le32		delta_slope_coeff_man;
135 	__le32		delta_slope_coeff_exp_shgi;
136 	__le32		delta_slope_coeff_man_shgi;
137 	__le32		finiteLoopCount;
138 } __packed;
139 #define CARL9170_RF_INIT_SIZE		28
140 
141 struct carl9170_rf_init_result {
142 	__le32		ret;		/* AR9170_PHY_REG_AGC_CONTROL */
143 } __packed;
144 #define	CARL9170_RF_INIT_RESULT_SIZE	4
145 
146 #define	CARL9170_PSM_SLEEP		0x1000
147 #define	CARL9170_PSM_SOFTWARE		0
148 #define	CARL9170_PSM_WAKE		0 /* internally used. */
149 #define	CARL9170_PSM_COUNTER		0xfff
150 #define	CARL9170_PSM_COUNTER_S		0
151 
152 struct carl9170_psm {
153 	__le32		state;
154 } __packed;
155 #define CARL9170_PSM_SIZE		4
156 
157 struct carl9170_rx_filter_cmd {
158 	__le32		rx_filter;
159 } __packed;
160 #define CARL9170_RX_FILTER_CMD_SIZE	4
161 
162 #define CARL9170_RX_FILTER_BAD		0x01
163 #define CARL9170_RX_FILTER_OTHER_RA	0x02
164 #define CARL9170_RX_FILTER_DECRY_FAIL	0x04
165 #define CARL9170_RX_FILTER_CTL_OTHER	0x08
166 #define CARL9170_RX_FILTER_CTL_PSPOLL	0x10
167 #define CARL9170_RX_FILTER_CTL_BACKR	0x20
168 #define CARL9170_RX_FILTER_MGMT		0x40
169 #define CARL9170_RX_FILTER_DATA		0x80
170 
171 struct carl9170_bcn_ctrl_cmd {
172 	__le32		vif_id;
173 	__le32		mode;
174 	__le32		bcn_addr;
175 	__le32		bcn_len;
176 } __packed;
177 #define CARL9170_BCN_CTRL_CMD_SIZE	16
178 
179 #define CARL9170_BCN_CTRL_DRAIN	0
180 #define CARL9170_BCN_CTRL_CAB_TRIGGER	1
181 
182 struct carl9170_cmd_head {
183 	union {
184 		struct {
185 			u8	len;
186 			u8	cmd;
187 			u8	seq;
188 			u8	ext;
189 		} __packed;
190 
191 		u32 hdr_data;
192 	} __packed;
193 } __packed;
194 
195 struct carl9170_cmd {
196 	struct carl9170_cmd_head hdr;
197 	union {
198 		struct carl9170_set_key_cmd	setkey;
199 		struct carl9170_disable_key_cmd	disablekey;
200 		struct carl9170_u32_list	echo;
201 		struct carl9170_reg_list	rreg;
202 		struct carl9170_write_reg	wreg;
203 		struct carl9170_rf_init		rf_init;
204 		struct carl9170_psm		psm;
205 		struct carl9170_bcn_ctrl_cmd	bcn_ctrl;
206 		struct carl9170_rx_filter_cmd	rx_filter;
207 		u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN];
208 	} __packed;
209 } __packed __aligned(4);
210 
211 #define	CARL9170_TX_STATUS_QUEUE	3
212 #define	CARL9170_TX_STATUS_QUEUE_S	0
213 #define	CARL9170_TX_STATUS_RIX_S	2
214 #define	CARL9170_TX_STATUS_RIX		(3 << CARL9170_TX_STATUS_RIX_S)
215 #define	CARL9170_TX_STATUS_TRIES_S	4
216 #define	CARL9170_TX_STATUS_TRIES	(7 << CARL9170_TX_STATUS_TRIES_S)
217 #define	CARL9170_TX_STATUS_SUCCESS	0x80
218 
219 #ifdef __CARL9170FW__
220 /*
221  * NOTE:
222  * Both structs [carl9170_tx_status and _carl9170_tx_status]
223  * need to be "bit for bit" in sync.
224  */
225 struct carl9170_tx_status {
226 	/*
227 	 * Beware of compiler bugs in all gcc pre 4.4!
228 	 */
229 
230 	u8 cookie;
231 	u8 queue:2;
232 	u8 rix:2;
233 	u8 tries:3;
234 	u8 success:1;
235 } __packed;
236 #endif /* __CARL9170FW__ */
237 
238 struct _carl9170_tx_status {
239 	/*
240 	 * This version should be immune to all alignment bugs.
241 	 */
242 
243 	u8 cookie;
244 	u8 info;
245 } __packed;
246 #define CARL9170_TX_STATUS_SIZE		2
247 
248 #define	CARL9170_RSP_TX_STATUS_NUM	(CARL9170_MAX_CMD_PAYLOAD_LEN /	\
249 					 sizeof(struct _carl9170_tx_status))
250 
251 #define	CARL9170_TX_MAX_RATE_TRIES	7
252 
253 #define	CARL9170_TX_MAX_RATES		4
254 #define	CARL9170_TX_MAX_RETRY_RATES	(CARL9170_TX_MAX_RATES - 1)
255 #define	CARL9170_ERR_MAGIC		"ERR:"
256 #define	CARL9170_BUG_MAGIC		"BUG:"
257 
258 struct carl9170_gpio {
259 	__le32 gpio;
260 } __packed;
261 #define CARL9170_GPIO_SIZE		4
262 
263 struct carl9170_tsf_rsp {
264 	union {
265 		__le32 tsf[2];
266 		__le64 tsf_64;
267 	} __packed;
268 } __packed;
269 #define CARL9170_TSF_RSP_SIZE		8
270 
271 struct carl9170_rsp {
272 	struct carl9170_cmd_head hdr;
273 
274 	union {
275 		struct carl9170_rf_init_result	rf_init_res;
276 		struct carl9170_u32_list	rreg_res;
277 		struct carl9170_u32_list	echo;
278 #ifdef __CARL9170FW__
279 		struct carl9170_tx_status	tx_status[0];
280 #endif /* __CARL9170FW__ */
281 		struct _carl9170_tx_status	_tx_status[0];
282 		struct carl9170_gpio		gpio;
283 		struct carl9170_tsf_rsp		tsf;
284 		struct carl9170_psm		psm;
285 		u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN];
286 	} __packed;
287 } __packed __aligned(4);
288 
289 #endif /* __CARL9170_SHARED_FWCMD_H */
290