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desc.h
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1 /*
2  * Copyright (c) 2004-2008 Reyk Floeter <[email protected]>
3  * Copyright (c) 2006-2008 Nick Kossifidis <[email protected]>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  *
17  */
18 
19 /*
20  * RX/TX descriptor structures
21  */
22 
31 } __packed __aligned(4);
32 
33 /* RX control word 1 fields/flags */
34 #define AR5K_DESC_RX_CTL1_BUF_LEN 0x00000fff /* data buffer length */
35 #define AR5K_DESC_RX_CTL1_INTREQ 0x00002000 /* RX interrupt request */
36 
47 } __packed __aligned(4);
48 
49 /* 5210/5211 */
50 /* RX status word 0 fields/flags */
51 #define AR5K_5210_RX_DESC_STATUS0_DATA_LEN 0x00000fff /* RX data length */
52 #define AR5K_5210_RX_DESC_STATUS0_MORE 0x00001000 /* more desc for this frame */
53 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANT_5210 0x00004000 /* [5210] receive on ant 1 */
54 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE 0x00078000 /* reception rate */
55 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE_S 15
56 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL 0x07f80000 /* rssi */
57 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL_S 19
58 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANT_5211 0x38000000 /* [5211] receive antenna */
59 #define AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANT_5211_S 27
60 
61 /* RX status word 1 fields/flags */
62 #define AR5K_5210_RX_DESC_STATUS1_DONE 0x00000001 /* descriptor complete */
63 #define AR5K_5210_RX_DESC_STATUS1_FRAME_RECEIVE_OK 0x00000002 /* reception success */
64 #define AR5K_5210_RX_DESC_STATUS1_CRC_ERROR 0x00000004 /* CRC error */
65 #define AR5K_5210_RX_DESC_STATUS1_FIFO_OVERRUN_5210 0x00000008 /* [5210] FIFO overrun */
66 #define AR5K_5210_RX_DESC_STATUS1_DECRYPT_CRC_ERROR 0x00000010 /* decryption CRC failure */
67 #define AR5K_5210_RX_DESC_STATUS1_PHY_ERROR 0x000000e0 /* PHY error */
68 #define AR5K_5210_RX_DESC_STATUS1_PHY_ERROR_S 5
69 #define AR5K_5210_RX_DESC_STATUS1_KEY_INDEX_VALID 0x00000100 /* key index valid */
70 #define AR5K_5210_RX_DESC_STATUS1_KEY_INDEX 0x00007e00 /* decryption key index */
71 #define AR5K_5210_RX_DESC_STATUS1_KEY_INDEX_S 9
72 #define AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP 0x0fff8000 /* 13 bit of TSF */
73 #define AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP_S 15
74 #define AR5K_5210_RX_DESC_STATUS1_KEY_CACHE_MISS 0x10000000 /* key cache miss */
75 
76 /* 5212 */
77 /* RX status word 0 fields/flags */
78 #define AR5K_5212_RX_DESC_STATUS0_DATA_LEN 0x00000fff /* RX data length */
79 #define AR5K_5212_RX_DESC_STATUS0_MORE 0x00001000 /* more desc for this frame */
80 #define AR5K_5212_RX_DESC_STATUS0_DECOMP_CRC_ERROR 0x00002000 /* decompression CRC error */
81 #define AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE 0x000f8000 /* reception rate */
82 #define AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE_S 15
83 #define AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL 0x0ff00000 /* rssi */
84 #define AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL_S 20
85 #define AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA 0xf0000000 /* receive antenna */
86 #define AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA_S 28
87 
88 /* RX status word 1 fields/flags */
89 #define AR5K_5212_RX_DESC_STATUS1_DONE 0x00000001 /* descriptor complete */
90 #define AR5K_5212_RX_DESC_STATUS1_FRAME_RECEIVE_OK 0x00000002 /* frame reception success */
91 #define AR5K_5212_RX_DESC_STATUS1_CRC_ERROR 0x00000004 /* CRC error */
92 #define AR5K_5212_RX_DESC_STATUS1_DECRYPT_CRC_ERROR 0x00000008 /* decryption CRC failure */
93 #define AR5K_5212_RX_DESC_STATUS1_PHY_ERROR 0x00000010 /* PHY error */
94 #define AR5K_5212_RX_DESC_STATUS1_MIC_ERROR 0x00000020 /* MIC decrypt error */
95 #define AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_VALID 0x00000100 /* key index valid */
96 #define AR5K_5212_RX_DESC_STATUS1_KEY_INDEX 0x0000fe00 /* decryption key index */
97 #define AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_S 9
98 #define AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP 0x7fff0000 /* first 15bit of the TSF */
99 #define AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP_S 16
100 #define AR5K_5212_RX_DESC_STATUS1_KEY_CACHE_MISS 0x80000000 /* key cache miss */
101 #define AR5K_5212_RX_DESC_STATUS1_PHY_ERROR_CODE 0x0000ff00 /* phy error code overlays key index and valid fields */
102 #define AR5K_5212_RX_DESC_STATUS1_PHY_ERROR_CODE_S 8
103 
148 };
149 
158 } __packed __aligned(4);
160 /* TX control word 0 fields/flags */
161 #define AR5K_2W_TX_DESC_CTL0_FRAME_LEN 0x00000fff /* frame length */
162 #define AR5K_2W_TX_DESC_CTL0_HEADER_LEN_5210 0x0003f000 /* [5210] header length */
163 #define AR5K_2W_TX_DESC_CTL0_HEADER_LEN_5210_S 12
164 #define AR5K_2W_TX_DESC_CTL0_XMIT_RATE 0x003c0000 /* tx rate */
165 #define AR5K_2W_TX_DESC_CTL0_XMIT_RATE_S 18
166 #define AR5K_2W_TX_DESC_CTL0_RTSENA 0x00400000 /* RTS/CTS enable */
167 #define AR5K_2W_TX_DESC_CTL0_LONG_PACKET_5210 0x00800000 /* [5210] long packet */
168 #define AR5K_2W_TX_DESC_CTL0_VEOL_5211 0x00800000 /* [5211] virtual end-of-list */
169 #define AR5K_2W_TX_DESC_CTL0_CLRDMASK 0x01000000 /* clear destination mask */
170 #define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5210 0x02000000 /* [5210] antenna selection */
171 #define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5211 0x1e000000 /* [5211] antenna selection */
172 #define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT \
173  (ah->ah_version == AR5K_AR5210 ? \
174  AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5210 : \
175  AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5211)
176 #define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_S 25
177 #define AR5K_2W_TX_DESC_CTL0_FRAME_TYPE_5210 0x1c000000 /* [5210] frame type */
178 #define AR5K_2W_TX_DESC_CTL0_FRAME_TYPE_5210_S 26
179 #define AR5K_2W_TX_DESC_CTL0_INTREQ 0x20000000 /* TX interrupt request */
180 #define AR5K_2W_TX_DESC_CTL0_ENCRYPT_KEY_VALID 0x40000000 /* key is valid */
181 
182 /* TX control word 1 fields/flags */
183 #define AR5K_2W_TX_DESC_CTL1_BUF_LEN 0x00000fff /* data buffer length */
184 #define AR5K_2W_TX_DESC_CTL1_MORE 0x00001000 /* more desc for this frame */
185 #define AR5K_2W_TX_DESC_CTL1_ENC_KEY_IDX_5210 0x0007e000 /* [5210] key table index */
186 #define AR5K_2W_TX_DESC_CTL1_ENC_KEY_IDX_5211 0x000fe000 /* [5211] key table index */
187 #define AR5K_2W_TX_DESC_CTL1_ENC_KEY_IDX \
188  (ah->ah_version == AR5K_AR5210 ? \
189  AR5K_2W_TX_DESC_CTL1_ENC_KEY_IDX_5210 : \
190  AR5K_2W_TX_DESC_CTL1_ENC_KEY_IDX_5211)
191 #define AR5K_2W_TX_DESC_CTL1_ENC_KEY_IDX_S 13
192 #define AR5K_2W_TX_DESC_CTL1_FRAME_TYPE_5211 0x00700000 /* [5211] frame type */
193 #define AR5K_2W_TX_DESC_CTL1_FRAME_TYPE_5211_S 20
194 #define AR5K_2W_TX_DESC_CTL1_NOACK_5211 0x00800000 /* [5211] no ACK */
195 #define AR5K_2W_TX_DESC_CTL1_RTS_DURATION_5210 0xfff80000 /* [5210] lower 13 bit of duration */
196 
197 /* Frame types */
198 #define AR5K_AR5210_TX_DESC_FRAME_TYPE_NORMAL 0
199 #define AR5K_AR5210_TX_DESC_FRAME_TYPE_ATIM 1
200 #define AR5K_AR5210_TX_DESC_FRAME_TYPE_PSPOLL 2
201 #define AR5K_AR5210_TX_DESC_FRAME_TYPE_NO_DELAY 3
202 #define AR5K_AR5211_TX_DESC_FRAME_TYPE_BEACON 3
203 #define AR5K_AR5210_TX_DESC_FRAME_TYPE_PIFS 4
204 #define AR5K_AR5211_TX_DESC_FRAME_TYPE_PRESP 4
205 
218 } __packed __aligned(4);
219 
220 /* TX control word 0 fields/flags */
221 #define AR5K_4W_TX_DESC_CTL0_FRAME_LEN 0x00000fff /* frame length */
222 #define AR5K_4W_TX_DESC_CTL0_XMIT_POWER 0x003f0000 /* transmit power */
223 #define AR5K_4W_TX_DESC_CTL0_XMIT_POWER_S 16
224 #define AR5K_4W_TX_DESC_CTL0_RTSENA 0x00400000 /* RTS/CTS enable */
225 #define AR5K_4W_TX_DESC_CTL0_VEOL 0x00800000 /* virtual end-of-list */
226 #define AR5K_4W_TX_DESC_CTL0_CLRDMASK 0x01000000 /* clear destination mask */
227 #define AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT 0x1e000000 /* TX antenna selection */
228 #define AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT_S 25
229 #define AR5K_4W_TX_DESC_CTL0_INTREQ 0x20000000 /* TX interrupt request */
230 #define AR5K_4W_TX_DESC_CTL0_ENCRYPT_KEY_VALID 0x40000000 /* destination index valid */
231 #define AR5K_4W_TX_DESC_CTL0_CTSENA 0x80000000 /* precede frame with CTS */
232 
233 /* TX control word 1 fields/flags */
234 #define AR5K_4W_TX_DESC_CTL1_BUF_LEN 0x00000fff /* data buffer length */
235 #define AR5K_4W_TX_DESC_CTL1_MORE 0x00001000 /* more desc for this frame */
236 #define AR5K_4W_TX_DESC_CTL1_ENCRYPT_KEY_IDX 0x000fe000 /* destination table index */
237 #define AR5K_4W_TX_DESC_CTL1_ENCRYPT_KEY_IDX_S 13
238 #define AR5K_4W_TX_DESC_CTL1_FRAME_TYPE 0x00f00000 /* frame type */
239 #define AR5K_4W_TX_DESC_CTL1_FRAME_TYPE_S 20
240 #define AR5K_4W_TX_DESC_CTL1_NOACK 0x01000000 /* no ACK */
241 #define AR5K_4W_TX_DESC_CTL1_COMP_PROC 0x06000000 /* compression processing */
242 #define AR5K_4W_TX_DESC_CTL1_COMP_PROC_S 25
243 #define AR5K_4W_TX_DESC_CTL1_COMP_IV_LEN 0x18000000 /* length of frame IV */
244 #define AR5K_4W_TX_DESC_CTL1_COMP_IV_LEN_S 27
245 #define AR5K_4W_TX_DESC_CTL1_COMP_ICV_LEN 0x60000000 /* length of frame ICV */
246 #define AR5K_4W_TX_DESC_CTL1_COMP_ICV_LEN_S 29
247 
248 /* TX control word 2 fields/flags */
249 #define AR5K_4W_TX_DESC_CTL2_RTS_DURATION 0x00007fff /* RTS/CTS duration */
250 #define AR5K_4W_TX_DESC_CTL2_DURATION_UPD_EN 0x00008000 /* frame duration update */
251 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0 0x000f0000 /* series 0 max attempts */
252 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0_S 16
253 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1 0x00f00000 /* series 1 max attempts */
254 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1_S 20
255 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES2 0x0f000000 /* series 2 max attempts */
256 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES2_S 24
257 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES3 0xf0000000 /* series 3 max attempts */
258 #define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES3_S 28
259 
260 /* TX control word 3 fields/flags */
261 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE0 0x0000001f /* series 0 tx rate */
262 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE1 0x000003e0 /* series 1 tx rate */
263 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE1_S 5
264 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE2 0x00007c00 /* series 2 tx rate */
265 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE2_S 10
266 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE3 0x000f8000 /* series 3 tx rate */
267 #define AR5K_4W_TX_DESC_CTL3_XMIT_RATE3_S 15
268 #define AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE 0x01f00000 /* RTS or CTS rate */
269 #define AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE_S 20
270 
279 } __packed __aligned(4);
281 /* TX status word 0 fields/flags */
282 #define AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK 0x00000001 /* TX success */
283 #define AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES 0x00000002 /* excessive retries */
284 #define AR5K_DESC_TX_STATUS0_FIFO_UNDERRUN 0x00000004 /* FIFO underrun */
285 #define AR5K_DESC_TX_STATUS0_FILTERED 0x00000008 /* TX filter indication */
286 /* according to the HAL sources the spec has short/long retry counts reversed.
287  * we have it reversed to the HAL sources as well, for 5210 and 5211.
288  * For 5212 these fields are defined as RTS_FAIL_COUNT and DATA_FAIL_COUNT,
289  * but used respectively as SHORT and LONG retry count in the code later. This
290  * is consistent with the definitions here... TODO: check */
291 #define AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT 0x000000f0 /* short retry count */
292 #define AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT_S 4
293 #define AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT 0x00000f00 /* long retry count */
294 #define AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT_S 8
295 #define AR5K_DESC_TX_STATUS0_VIRTCOLL_CT_5211 0x0000f000 /* [5211+] virtual collision count */
296 #define AR5K_DESC_TX_STATUS0_VIRTCOLL_CT_5212_S 12
297 #define AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP 0xffff0000 /* TX timestamp */
298 #define AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP_S 16
299 
300 /* TX status word 1 fields/flags */
301 #define AR5K_DESC_TX_STATUS1_DONE 0x00000001 /* descriptor complete */
302 #define AR5K_DESC_TX_STATUS1_SEQ_NUM 0x00001ffe /* TX sequence number */
303 #define AR5K_DESC_TX_STATUS1_SEQ_NUM_S 1
304 #define AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH 0x001fe000 /* signal strength of ACK */
305 #define AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH_S 13
306 #define AR5K_DESC_TX_STATUS1_FINAL_TS_IX_5212 0x00600000 /* [5212] final TX attempt series ix */
307 #define AR5K_DESC_TX_STATUS1_FINAL_TS_IX_5212_S 21
308 #define AR5K_DESC_TX_STATUS1_COMP_SUCCESS_5212 0x00800000 /* [5212] compression status */
309 #define AR5K_DESC_TX_STATUS1_XMIT_ANTENNA_5212 0x01000000 /* [5212] transmit antenna */
310 
319 } __packed __aligned(4);
329 } __packed __aligned(4);
330 
339 } __packed __aligned(4);
349 struct ath5k_desc {
352 
353  union {
357  } ud;
358 } __packed __aligned(4);
360 #define AR5K_RXDESC_INTREQ 0x0020
361 
362 #define AR5K_TXDESC_CLRDMASK 0x0001
363 #define AR5K_TXDESC_NOACK 0x0002 /*[5211+]*/
364 #define AR5K_TXDESC_RTSENA 0x0004
365 #define AR5K_TXDESC_CTSENA 0x0008
366 #define AR5K_TXDESC_INTREQ 0x0010
367 #define AR5K_TXDESC_VEOL 0x0020 /*[5211+]*/