Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1 | /* |
Sujith Manoharan | 5b68138 | 2011-05-17 13:36:18 +0530 | [diff] [blame] | 2 | * Copyright (c) 2008-2011 Atheros Communications Inc. |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ATH9K_H |
| 18 | #define ATH9K_H |
| 19 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 20 | #include <linux/etherdevice.h> |
| 21 | #include <linux/device.h> |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 22 | #include <linux/interrupt.h> |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 23 | #include <linux/leds.h> |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 24 | #include <linux/completion.h> |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 25 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 26 | #include "debug.h" |
Luis R. Rodriguez | db86f07 | 2009-11-05 08:44:39 -0800 | [diff] [blame] | 27 | #include "common.h" |
Rajkumar Manoharan | 7dc181c | 2011-10-24 18:19:49 +0530 | [diff] [blame] | 28 | #include "mci.h" |
Zefir Kurtisi | 8e92d3f | 2012-04-03 17:15:50 +0200 | [diff] [blame] | 29 | #include "dfs.h" |
Luis R. Rodriguez | db86f07 | 2009-11-05 08:44:39 -0800 | [diff] [blame] | 30 | |
| 31 | /* |
| 32 | * Header for the ath9k.ko driver core *only* -- hw code nor any other driver |
| 33 | * should rely on this file or its contents. |
| 34 | */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 35 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 36 | struct ath_node; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 37 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 38 | /* Macro to expand scalars to 64-bit objects */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 39 | |
Ming Lei | 13bda12 | 2009-12-29 22:57:28 +0800 | [diff] [blame] | 40 | #define ito64(x) (sizeof(x) == 1) ? \ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 41 | (((unsigned long long int)(x)) & (0xff)) : \ |
Ming Lei | 13bda12 | 2009-12-29 22:57:28 +0800 | [diff] [blame] | 42 | (sizeof(x) == 2) ? \ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 43 | (((unsigned long long int)(x)) & 0xffff) : \ |
Ming Lei | 13bda12 | 2009-12-29 22:57:28 +0800 | [diff] [blame] | 44 | ((sizeof(x) == 4) ? \ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 45 | (((unsigned long long int)(x)) & 0xffffffff) : \ |
| 46 | (unsigned long long int)(x)) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 47 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 48 | /* increment with wrap-around */ |
| 49 | #define INCR(_l, _sz) do { \ |
| 50 | (_l)++; \ |
| 51 | (_l) &= ((_sz) - 1); \ |
| 52 | } while (0) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 53 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 54 | /* decrement with wrap-around */ |
| 55 | #define DECR(_l, _sz) do { \ |
| 56 | (_l)--; \ |
| 57 | (_l) &= ((_sz) - 1); \ |
| 58 | } while (0) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 59 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 60 | #define TSF_TO_TU(_h,_l) \ |
| 61 | ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) |
| 62 | |
| 63 | #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i)) |
| 64 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 65 | struct ath_config { |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 66 | u16 txpowlimit; |
| 67 | u8 cabqReadytime; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 68 | }; |
| 69 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 70 | /*************************/ |
| 71 | /* Descriptor Management */ |
| 72 | /*************************/ |
| 73 | |
| 74 | #define ATH_TXBUF_RESET(_bf) do { \ |
Sujith | a119cc4 | 2009-03-30 15:28:38 +0530 | [diff] [blame] | 75 | (_bf)->bf_stale = false; \ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 76 | (_bf)->bf_lastbf = NULL; \ |
| 77 | (_bf)->bf_next = NULL; \ |
| 78 | memset(&((_bf)->bf_state), 0, \ |
| 79 | sizeof(struct ath_buf_state)); \ |
| 80 | } while (0) |
| 81 | |
Sujith | a119cc4 | 2009-03-30 15:28:38 +0530 | [diff] [blame] | 82 | #define ATH_RXBUF_RESET(_bf) do { \ |
| 83 | (_bf)->bf_stale = false; \ |
| 84 | } while (0) |
| 85 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 86 | /** |
| 87 | * enum buffer_type - Buffer type flags |
| 88 | * |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 89 | * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX) |
| 90 | * @BUF_AGGR: Indicates whether the buffer can be aggregated |
| 91 | * (used in aggregation scheduling) |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 92 | */ |
| 93 | enum buffer_type { |
Mohammed Shafi Shajakhan | 436d0d9 | 2011-01-21 14:03:24 +0530 | [diff] [blame] | 94 | BUF_AMPDU = BIT(0), |
| 95 | BUF_AGGR = BIT(1), |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 96 | }; |
| 97 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 98 | #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU) |
| 99 | #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 100 | |
Rajkumar Manoharan | 016c217 | 2011-12-23 21:27:02 +0530 | [diff] [blame] | 101 | #define ATH_TXSTATUS_RING_SIZE 512 |
Vasanthakumar Thiagarajan | 5088c2f | 2010-04-15 17:39:34 -0400 | [diff] [blame] | 102 | |
Mohammed Shafi Shajakhan | c3d7769 | 2011-06-28 17:30:54 +0530 | [diff] [blame] | 103 | #define DS2PHYS(_dd, _ds) \ |
| 104 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) |
| 105 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) |
| 106 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) |
| 107 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 108 | struct ath_descdma { |
Vasanthakumar Thiagarajan | 5088c2f | 2010-04-15 17:39:34 -0400 | [diff] [blame] | 109 | void *dd_desc; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 110 | dma_addr_t dd_desc_paddr; |
| 111 | u32 dd_desc_len; |
| 112 | struct ath_buf *dd_bufptr; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 113 | }; |
| 114 | |
| 115 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, |
| 116 | struct list_head *head, const char *name, |
Vasanthakumar Thiagarajan | 4adfcde | 2010-04-15 17:39:33 -0400 | [diff] [blame] | 117 | int nbuf, int ndesc, bool is_tx); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 118 | void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd, |
| 119 | struct list_head *head); |
| 120 | |
| 121 | /***********/ |
| 122 | /* RX / TX */ |
| 123 | /***********/ |
| 124 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 125 | #define ATH_RXBUF 512 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 126 | #define ATH_TXBUF 512 |
Felix Fietkau | 84642d6 | 2010-06-01 21:33:13 +0200 | [diff] [blame] | 127 | #define ATH_TXBUF_RESERVE 5 |
| 128 | #define ATH_MAX_QDEPTH (ATH_TXBUF / 4 - ATH_TXBUF_RESERVE) |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 129 | #define ATH_TXMAXTRY 13 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 130 | |
| 131 | #define TID_TO_WME_AC(_tid) \ |
| 132 | ((((_tid) == 0) || ((_tid) == 3)) ? WME_AC_BE : \ |
| 133 | (((_tid) == 1) || ((_tid) == 2)) ? WME_AC_BK : \ |
| 134 | (((_tid) == 4) || ((_tid) == 5)) ? WME_AC_VI : \ |
| 135 | WME_AC_VO) |
| 136 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 137 | #define ATH_AGGR_DELIM_SZ 4 |
| 138 | #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */ |
| 139 | /* number of delimiters for encryption padding */ |
| 140 | #define ATH_AGGR_ENCRYPTDELIM 10 |
| 141 | /* minimum h/w qdepth to be sustained to maximize aggregation */ |
| 142 | #define ATH_AGGR_MIN_QDEPTH 2 |
| 143 | #define ATH_AMPDU_SUBFRAME_DEFAULT 32 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 144 | |
| 145 | #define IEEE80211_SEQ_SEQ_SHIFT 4 |
| 146 | #define IEEE80211_SEQ_MAX 4096 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 147 | #define IEEE80211_WEP_IVLEN 3 |
| 148 | #define IEEE80211_WEP_KIDLEN 1 |
| 149 | #define IEEE80211_WEP_CRCLEN 4 |
| 150 | #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \ |
| 151 | (IEEE80211_WEP_IVLEN + \ |
| 152 | IEEE80211_WEP_KIDLEN + \ |
| 153 | IEEE80211_WEP_CRCLEN)) |
| 154 | |
| 155 | /* return whether a bit at index _n in bitmap _bm is set |
| 156 | * _sz is the size of the bitmap */ |
| 157 | #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \ |
| 158 | ((_bm)[(_n) >> 5] & (1 << ((_n) & 31)))) |
| 159 | |
| 160 | /* return block-ack bitmap index given sequence and starting sequence */ |
| 161 | #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1)) |
| 162 | |
Felix Fietkau | 156369f | 2011-12-14 22:08:04 +0100 | [diff] [blame] | 163 | /* return the seqno for _start + _offset */ |
| 164 | #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1)) |
| 165 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 166 | /* returns delimiter padding required given the packet length */ |
| 167 | #define ATH_AGGR_GET_NDELIM(_len) \ |
Vasanthakumar Thiagarajan | 39ec299 | 2010-11-10 05:03:15 -0800 | [diff] [blame] | 168 | (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \ |
| 169 | DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ)) |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 170 | |
| 171 | #define BAW_WITHIN(_start, _bawsz, _seqno) \ |
| 172 | ((((_seqno) - (_start)) & 4095) < (_bawsz)) |
| 173 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 174 | #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)]) |
| 175 | |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 176 | #define ATH_TX_COMPLETE_POLL_INT 1000 |
| 177 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 178 | enum ATH_AGGR_STATUS { |
| 179 | ATH_AGGR_DONE, |
| 180 | ATH_AGGR_BAW_CLOSED, |
| 181 | ATH_AGGR_LIMITED, |
| 182 | }; |
| 183 | |
Vasanthakumar Thiagarajan | e500324 | 2010-04-15 17:39:36 -0400 | [diff] [blame] | 184 | #define ATH_TXFIFO_DEPTH 8 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 185 | struct ath_txq { |
Ben Greear | 60f2d1d | 2011-01-09 23:11:52 -0800 | [diff] [blame] | 186 | int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */ |
| 187 | u32 axq_qnum; /* ath9k hardware queue number */ |
Felix Fietkau | fce041b | 2011-05-19 12:20:25 +0200 | [diff] [blame] | 188 | void *axq_link; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 189 | struct list_head axq_q; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 190 | spinlock_t axq_lock; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 191 | u32 axq_depth; |
Felix Fietkau | 4b3ba66 | 2010-12-17 00:57:00 +0100 | [diff] [blame] | 192 | u32 axq_ampdu_depth; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 193 | bool stopped; |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 194 | bool axq_tx_inprogress; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 195 | struct list_head axq_acq; |
Vasanthakumar Thiagarajan | e500324 | 2010-04-15 17:39:36 -0400 | [diff] [blame] | 196 | struct list_head txq_fifo[ATH_TXFIFO_DEPTH]; |
Vasanthakumar Thiagarajan | e500324 | 2010-04-15 17:39:36 -0400 | [diff] [blame] | 197 | u8 txq_headidx; |
| 198 | u8 txq_tailidx; |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 199 | int pending_frames; |
Felix Fietkau | 23de5dc | 2011-12-19 16:45:54 +0100 | [diff] [blame] | 200 | struct sk_buff_head complete_q; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 201 | }; |
| 202 | |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 203 | struct ath_atx_ac { |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 204 | struct ath_txq *txq; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 205 | int sched; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 206 | struct list_head list; |
| 207 | struct list_head tid_q; |
Felix Fietkau | 5519541 | 2011-04-17 23:28:09 +0200 | [diff] [blame] | 208 | bool clear_ps_filter; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 209 | }; |
| 210 | |
Felix Fietkau | 2d42efc | 2010-11-14 15:20:13 +0100 | [diff] [blame] | 211 | struct ath_frame_info { |
Felix Fietkau | 56dc633 | 2011-08-28 00:32:22 +0200 | [diff] [blame] | 212 | struct ath_buf *bf; |
Felix Fietkau | 2d42efc | 2010-11-14 15:20:13 +0100 | [diff] [blame] | 213 | int framelen; |
Felix Fietkau | 2d42efc | 2010-11-14 15:20:13 +0100 | [diff] [blame] | 214 | enum ath9k_key_type keytype; |
Felix Fietkau | a75c062 | 2011-08-28 00:32:21 +0200 | [diff] [blame] | 215 | u8 keyix; |
Felix Fietkau | 2d42efc | 2010-11-14 15:20:13 +0100 | [diff] [blame] | 216 | u8 retries; |
Felix Fietkau | 2d42efc | 2010-11-14 15:20:13 +0100 | [diff] [blame] | 217 | }; |
| 218 | |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 219 | struct ath_buf_state { |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 220 | u8 bf_type; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 221 | u8 bfs_paprd; |
Felix Fietkau | 399c648 | 2011-09-14 21:24:17 +0200 | [diff] [blame] | 222 | u8 ndelim; |
Felix Fietkau | 6a0ddae | 2011-08-28 00:32:23 +0200 | [diff] [blame] | 223 | u16 seqno; |
Mohammed Shafi Shajakhan | 9cf04dc | 2011-02-04 18:38:23 +0530 | [diff] [blame] | 224 | unsigned long bfs_paprd_timestamp; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 225 | }; |
| 226 | |
| 227 | struct ath_buf { |
| 228 | struct list_head list; |
| 229 | struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or |
| 230 | an aggregate) */ |
| 231 | struct ath_buf *bf_next; /* next subframe in the aggregate */ |
| 232 | struct sk_buff *bf_mpdu; /* enclosing frame structure */ |
| 233 | void *bf_desc; /* virtual addr of desc */ |
| 234 | dma_addr_t bf_daddr; /* physical addr of desc */ |
Ben Greear | c1739eb3 | 2010-10-14 12:45:29 -0700 | [diff] [blame] | 235 | dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */ |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 236 | bool bf_stale; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 237 | struct ath_buf_state bf_state; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 238 | }; |
| 239 | |
| 240 | struct ath_atx_tid { |
| 241 | struct list_head list; |
Felix Fietkau | 56dc633 | 2011-08-28 00:32:22 +0200 | [diff] [blame] | 242 | struct sk_buff_head buf_q; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 243 | struct ath_node *an; |
| 244 | struct ath_atx_ac *ac; |
Felix Fietkau | 81ee13b | 2010-09-20 13:45:36 +0200 | [diff] [blame] | 245 | unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)]; |
Felix Fietkau | f943754 | 2011-12-14 22:08:08 +0100 | [diff] [blame] | 246 | int bar_index; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 247 | u16 seq_start; |
| 248 | u16 seq_next; |
| 249 | u16 baw_size; |
| 250 | int tidno; |
| 251 | int baw_head; /* first un-acked tx buffer */ |
| 252 | int baw_tail; /* next unused tx buffer slot */ |
| 253 | int sched; |
| 254 | int paused; |
| 255 | u8 state; |
| 256 | }; |
| 257 | |
| 258 | struct ath_node { |
Ben Greear | 7f010c9 | 2011-01-09 23:11:49 -0800 | [diff] [blame] | 259 | #ifdef CONFIG_ATH9K_DEBUGFS |
| 260 | struct list_head list; /* for sc->nodes */ |
Felix Fietkau | 156369f | 2011-12-14 22:08:04 +0100 | [diff] [blame] | 261 | #endif |
Ben Greear | 7f010c9 | 2011-01-09 23:11:49 -0800 | [diff] [blame] | 262 | struct ieee80211_sta *sta; /* station struct we're part of */ |
Ben Greear | 7e1e386 | 2011-11-03 11:33:13 -0700 | [diff] [blame] | 263 | struct ieee80211_vif *vif; /* interface with which we're associated */ |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 264 | struct ath_atx_tid tid[WME_NUM_TID]; |
| 265 | struct ath_atx_ac ac[WME_NUM_AC]; |
Felix Fietkau | 93ae2dd | 2011-04-17 23:28:10 +0200 | [diff] [blame] | 266 | int ps_key; |
| 267 | |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 268 | u16 maxampdu; |
| 269 | u8 mpdudensity; |
Felix Fietkau | 5519541 | 2011-04-17 23:28:09 +0200 | [diff] [blame] | 270 | |
| 271 | bool sleeping; |
Sujith | 93ef24b | 2010-05-20 15:34:40 +0530 | [diff] [blame] | 272 | }; |
| 273 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 274 | #define AGGR_CLEANUP BIT(1) |
| 275 | #define AGGR_ADDBA_COMPLETE BIT(2) |
| 276 | #define AGGR_ADDBA_PROGRESS BIT(3) |
| 277 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 278 | struct ath_tx_control { |
| 279 | struct ath_txq *txq; |
Felix Fietkau | 2d42efc | 2010-11-14 15:20:13 +0100 | [diff] [blame] | 280 | struct ath_node *an; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 281 | u8 paprd; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 282 | }; |
| 283 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 284 | #define ATH_TX_ERROR 0x01 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 285 | |
Ben Greear | 60f2d1d | 2011-01-09 23:11:52 -0800 | [diff] [blame] | 286 | /** |
| 287 | * @txq_map: Index is mac80211 queue number. This is |
| 288 | * not necessarily the same as the hardware queue number |
| 289 | * (axq_qnum). |
| 290 | */ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 291 | struct ath_tx { |
| 292 | u16 seq_no; |
| 293 | u32 txqsetup; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 294 | spinlock_t txbuflock; |
| 295 | struct list_head txbuf; |
| 296 | struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; |
| 297 | struct ath_descdma txdma; |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 298 | struct ath_txq *txq_map[WME_NUM_AC]; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 299 | }; |
| 300 | |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 301 | struct ath_rx_edma { |
| 302 | struct sk_buff_head rx_fifo; |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 303 | u32 rx_fifo_hwsize; |
| 304 | }; |
| 305 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 306 | struct ath_rx { |
| 307 | u8 defant; |
| 308 | u8 rxotherant; |
| 309 | u32 *rxlink; |
Rajkumar Manoharan | 6995fb8 | 2012-06-04 16:28:52 +0530 | [diff] [blame] | 310 | u32 num_pkts; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 311 | unsigned int rxfilter; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 312 | spinlock_t rxbuflock; |
| 313 | struct list_head rxbuf; |
| 314 | struct ath_descdma rxdma; |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 315 | struct ath_buf *rx_bufptr; |
| 316 | struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX]; |
Felix Fietkau | 0d95521 | 2011-01-26 18:23:27 +0100 | [diff] [blame] | 317 | |
| 318 | struct sk_buff *frag; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 319 | }; |
| 320 | |
| 321 | int ath_startrecv(struct ath_softc *sc); |
| 322 | bool ath_stoprecv(struct ath_softc *sc); |
| 323 | void ath_flushrecv(struct ath_softc *sc); |
| 324 | u32 ath_calcrxfilter(struct ath_softc *sc); |
| 325 | int ath_rx_init(struct ath_softc *sc, int nbufs); |
| 326 | void ath_rx_cleanup(struct ath_softc *sc); |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 327 | int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 328 | struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype); |
Sujith Manoharan | ef1b6cd | 2012-06-04 20:23:37 +0530 | [diff] [blame] | 329 | void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq); |
| 330 | void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq); |
| 331 | void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 332 | void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq); |
Felix Fietkau | 080e1a2 | 2010-12-05 20:17:53 +0100 | [diff] [blame] | 333 | bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 334 | void ath_draintxq(struct ath_softc *sc, |
| 335 | struct ath_txq *txq, bool retry_tx); |
| 336 | void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an); |
| 337 | void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an); |
| 338 | void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq); |
| 339 | int ath_tx_init(struct ath_softc *sc, int nbufs); |
Sujith | 797fe5cb | 2009-03-30 15:28:45 +0530 | [diff] [blame] | 340 | void ath_tx_cleanup(struct ath_softc *sc); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 341 | int ath_txq_update(struct ath_softc *sc, int qnum, |
| 342 | struct ath9k_tx_queue_info *q); |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 343 | int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 344 | struct ath_tx_control *txctl); |
| 345 | void ath_tx_tasklet(struct ath_softc *sc); |
Vasanthakumar Thiagarajan | e500324 | 2010-04-15 17:39:36 -0400 | [diff] [blame] | 346 | void ath_tx_edma_tasklet(struct ath_softc *sc); |
Felix Fietkau | 231c3a1 | 2010-09-20 19:35:28 +0200 | [diff] [blame] | 347 | int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, |
| 348 | u16 tid, u16 *ssn); |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 349 | void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 350 | void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); |
| 351 | |
Felix Fietkau | 5519541 | 2011-04-17 23:28:09 +0200 | [diff] [blame] | 352 | void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an); |
Johannes Berg | 042ec45 | 2011-09-29 16:04:26 +0200 | [diff] [blame] | 353 | void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc, |
| 354 | struct ath_node *an); |
Felix Fietkau | 5519541 | 2011-04-17 23:28:09 +0200 | [diff] [blame] | 355 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 356 | /********/ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 357 | /* VIFs */ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 358 | /********/ |
| 359 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 360 | struct ath_vif { |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 361 | int av_bslot; |
Rajkumar Manoharan | 4f5ef75b | 2011-04-04 22:56:18 +0530 | [diff] [blame] | 362 | bool is_bslot_active, primary_sta_vif; |
Jouni Malinen | 4ed96f0 | 2009-03-12 21:53:23 +0200 | [diff] [blame] | 363 | __le64 tsf_adjust; /* TSF adjustment for staggered beacons */ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 364 | struct ath_buf *av_bcbuf; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 365 | }; |
| 366 | |
| 367 | /*******************/ |
| 368 | /* Beacon Handling */ |
| 369 | /*******************/ |
| 370 | |
| 371 | /* |
| 372 | * Regardless of the number of beacons we stagger, (i.e. regardless of the |
| 373 | * number of BSSIDs) if a given beacon does not go out even after waiting this |
| 374 | * number of beacon intervals, the game's up. |
| 375 | */ |
Felix Fietkau | c944daf4 | 2011-03-22 21:54:19 +0100 | [diff] [blame] | 376 | #define BSTUCK_THRESH 9 |
Felix Fietkau | 689e756 | 2012-04-12 22:35:56 +0200 | [diff] [blame] | 377 | #define ATH_BCBUF 8 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 378 | #define ATH_DEFAULT_BINTVAL 100 /* TU */ |
| 379 | #define ATH_DEFAULT_BMISS_LIMIT 10 |
| 380 | #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) |
| 381 | |
| 382 | struct ath_beacon_config { |
Steve Brown | 9814f6b | 2011-02-07 17:10:39 -0700 | [diff] [blame] | 383 | int beacon_interval; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 384 | u16 listen_interval; |
| 385 | u16 dtim_period; |
| 386 | u16 bmiss_timeout; |
| 387 | u8 dtim_count; |
Sujith | 86b89ee | 2008-08-07 10:54:57 +0530 | [diff] [blame] | 388 | }; |
| 389 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 390 | struct ath_beacon { |
| 391 | enum { |
| 392 | OK, /* no change needed */ |
| 393 | UPDATE, /* update pending */ |
| 394 | COMMIT /* beacon sent, commit change */ |
| 395 | } updateslot; /* slot time update fsm */ |
| 396 | |
| 397 | u32 beaconq; |
| 398 | u32 bmisscnt; |
| 399 | u32 ast_be_xmit; |
Felix Fietkau | dd347f2 | 2011-03-22 21:54:17 +0100 | [diff] [blame] | 400 | u32 bc_tstamp; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 401 | struct ieee80211_vif *bslot[ATH_BCBUF]; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 402 | int slottime; |
| 403 | int slotupdate; |
| 404 | struct ath9k_tx_queue_info beacon_qi; |
| 405 | struct ath_descdma bdma; |
| 406 | struct ath_txq *cabq; |
| 407 | struct list_head bbuf; |
Felix Fietkau | ba4903f | 2011-05-17 21:09:54 +0200 | [diff] [blame] | 408 | |
| 409 | bool tx_processed; |
| 410 | bool tx_last; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 411 | }; |
| 412 | |
Sujith | 9fc9ab0 | 2009-03-03 10:16:51 +0530 | [diff] [blame] | 413 | void ath_beacon_tasklet(unsigned long data); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 414 | void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif); |
Felix Fietkau | 9ac5861 | 2011-01-24 19:23:18 +0100 | [diff] [blame] | 415 | int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 416 | void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp); |
Vivek Natarajan | 94db293 | 2009-11-25 12:01:54 +0530 | [diff] [blame] | 417 | int ath_beaconq_config(struct ath_softc *sc); |
Rajkumar Manoharan | 99e4d43 | 2011-04-04 22:56:19 +0530 | [diff] [blame] | 418 | void ath_set_beacon(struct ath_softc *sc); |
Rajkumar Manoharan | 014cf3b | 2011-02-09 17:46:39 +0530 | [diff] [blame] | 419 | void ath9k_set_beaconing_status(struct ath_softc *sc, bool status); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 420 | |
Sujith Manoharan | ef1b6cd | 2012-06-04 20:23:37 +0530 | [diff] [blame] | 421 | /*******************/ |
| 422 | /* Link Monitoring */ |
| 423 | /*******************/ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 424 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 425 | #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */ |
| 426 | #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */ |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 427 | #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */ |
| 428 | #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */ |
Felix Fietkau | 6044474 | 2010-08-02 15:53:15 +0200 | [diff] [blame] | 429 | #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */ |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 430 | #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ |
| 431 | #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 432 | |
Vasanthakumar Thiagarajan | ca369eb | 2010-06-24 02:42:44 -0700 | [diff] [blame] | 433 | #define ATH_PAPRD_TIMEOUT 100 /* msecs */ |
Sujith Manoharan | af68aba | 2012-06-04 20:23:43 +0530 | [diff] [blame^] | 434 | #define ATH_PLL_WORK_INTERVAL 100 |
Vasanthakumar Thiagarajan | ca369eb | 2010-06-24 02:42:44 -0700 | [diff] [blame] | 435 | |
Sujith Manoharan | ef1b6cd | 2012-06-04 20:23:37 +0530 | [diff] [blame] | 436 | void ath_tx_complete_poll_work(struct work_struct *work); |
Felix Fietkau | 236de51 | 2011-09-03 01:40:25 +0200 | [diff] [blame] | 437 | void ath_reset_work(struct work_struct *work); |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 438 | void ath_hw_check(struct work_struct *work); |
Senthil Balasubramanian | 9eab61c | 2011-04-22 11:32:11 +0530 | [diff] [blame] | 439 | void ath_hw_pll_work(struct work_struct *work); |
Rajkumar Manoharan | 01e1891 | 2012-03-15 05:34:27 +0530 | [diff] [blame] | 440 | void ath_rx_poll(unsigned long data); |
| 441 | void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 442 | void ath_paprd_calibrate(struct work_struct *work); |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 443 | void ath_ani_calibrate(unsigned long data); |
Mohammed Shafi Shajakhan | 05c0be2 | 2011-05-26 10:56:15 +0530 | [diff] [blame] | 444 | void ath_start_ani(struct ath_common *common); |
Sujith Manoharan | ef1b6cd | 2012-06-04 20:23:37 +0530 | [diff] [blame] | 445 | int ath_update_survey_stats(struct ath_softc *sc); |
| 446 | void ath_update_survey_nf(struct ath_softc *sc, int channel); |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 447 | |
Sujith | 0fca65c | 2010-01-08 10:36:00 +0530 | [diff] [blame] | 448 | /**********/ |
| 449 | /* BTCOEX */ |
| 450 | /**********/ |
| 451 | |
Sujith Manoharan | e6930c4 | 2012-06-04 16:27:58 +0530 | [diff] [blame] | 452 | enum bt_op_flags { |
| 453 | BT_OP_PRIORITY_DETECTED, |
| 454 | BT_OP_SCAN, |
| 455 | }; |
| 456 | |
Luis R. Rodriguez | 2e20250 | 2009-09-09 01:18:09 -0700 | [diff] [blame] | 457 | struct ath_btcoex { |
| 458 | bool hw_timer_enabled; |
| 459 | spinlock_t btcoex_lock; |
| 460 | struct timer_list period_timer; /* Timer for BT period */ |
| 461 | u32 bt_priority_cnt; |
| 462 | unsigned long bt_priority_time; |
Sujith Manoharan | e6930c4 | 2012-06-04 16:27:58 +0530 | [diff] [blame] | 463 | unsigned long op_flags; |
Luis R. Rodriguez | e08a6ac | 2009-09-09 14:26:15 -0700 | [diff] [blame] | 464 | int bt_stomp_type; /* Types of BT stomping */ |
Luis R. Rodriguez | 2e20250 | 2009-09-09 01:18:09 -0700 | [diff] [blame] | 465 | u32 btcoex_no_stomp; /* in usec */ |
| 466 | u32 btcoex_period; /* in usec */ |
Vasanthakumar Thiagarajan | 58da131 | 2010-01-21 11:17:27 +0530 | [diff] [blame] | 467 | u32 btscan_no_stomp; /* in usec */ |
Rajkumar Manoharan | 7dc181c | 2011-10-24 18:19:49 +0530 | [diff] [blame] | 468 | u32 duty_cycle; |
Rajkumar Manoharan | 6995fb8 | 2012-06-04 16:28:52 +0530 | [diff] [blame] | 469 | u32 bt_wait_time; |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 470 | struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */ |
Rajkumar Manoharan | 7dc181c | 2011-10-24 18:19:49 +0530 | [diff] [blame] | 471 | struct ath_mci_profile mci; |
Luis R. Rodriguez | 2e20250 | 2009-09-09 01:18:09 -0700 | [diff] [blame] | 472 | }; |
| 473 | |
Sujith Manoharan | 4daa776 | 2012-02-22 12:40:44 +0530 | [diff] [blame] | 474 | #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT |
Sujith Manoharan | 5908120 | 2012-02-22 12:40:21 +0530 | [diff] [blame] | 475 | int ath9k_init_btcoex(struct ath_softc *sc); |
| 476 | void ath9k_deinit_btcoex(struct ath_softc *sc); |
Sujith Manoharan | df198b1 | 2012-02-22 12:40:27 +0530 | [diff] [blame] | 477 | void ath9k_start_btcoex(struct ath_softc *sc); |
| 478 | void ath9k_stop_btcoex(struct ath_softc *sc); |
Sujith | 0fca65c | 2010-01-08 10:36:00 +0530 | [diff] [blame] | 479 | void ath9k_btcoex_timer_resume(struct ath_softc *sc); |
| 480 | void ath9k_btcoex_timer_pause(struct ath_softc *sc); |
Sujith Manoharan | 56ca0dba | 2012-02-22 12:40:32 +0530 | [diff] [blame] | 481 | void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status); |
Sujith Manoharan | c0ac53f | 2012-02-22 12:40:38 +0530 | [diff] [blame] | 482 | u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen); |
Sujith Manoharan | 4daa776 | 2012-02-22 12:40:44 +0530 | [diff] [blame] | 483 | #else |
| 484 | static inline int ath9k_init_btcoex(struct ath_softc *sc) |
| 485 | { |
| 486 | return 0; |
| 487 | } |
| 488 | static inline void ath9k_deinit_btcoex(struct ath_softc *sc) |
| 489 | { |
| 490 | } |
| 491 | static inline void ath9k_start_btcoex(struct ath_softc *sc) |
| 492 | { |
| 493 | } |
| 494 | static inline void ath9k_stop_btcoex(struct ath_softc *sc) |
| 495 | { |
| 496 | } |
| 497 | static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, |
| 498 | u32 status) |
| 499 | { |
| 500 | } |
| 501 | static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, |
| 502 | u32 max_4ms_framelen) |
| 503 | { |
| 504 | return 0; |
| 505 | } |
| 506 | #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ |
Sujith | 0fca65c | 2010-01-08 10:36:00 +0530 | [diff] [blame] | 507 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 508 | /********************/ |
| 509 | /* LED Control */ |
| 510 | /********************/ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 511 | |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 512 | #define ATH_LED_PIN_DEF 1 |
| 513 | #define ATH_LED_PIN_9287 8 |
Senthil Balasubramanian | 353e501 | 2011-04-22 11:32:08 +0530 | [diff] [blame] | 514 | #define ATH_LED_PIN_9300 10 |
Senthil Balasubramanian | 1517853 | 2011-02-28 15:16:47 +0530 | [diff] [blame] | 515 | #define ATH_LED_PIN_9485 6 |
Mohammed Shafi Shajakhan | 1a68abb | 2011-11-29 20:06:15 +0530 | [diff] [blame] | 516 | #define ATH_LED_PIN_9462 4 |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 517 | |
Felix Fietkau | 0cf55c2 | 2011-02-27 22:26:40 +0100 | [diff] [blame] | 518 | #ifdef CONFIG_MAC80211_LEDS |
Sujith | 0fca65c | 2010-01-08 10:36:00 +0530 | [diff] [blame] | 519 | void ath_init_leds(struct ath_softc *sc); |
| 520 | void ath_deinit_leds(struct ath_softc *sc); |
Felix Fietkau | 0cf55c2 | 2011-02-27 22:26:40 +0100 | [diff] [blame] | 521 | #else |
| 522 | static inline void ath_init_leds(struct ath_softc *sc) |
| 523 | { |
| 524 | } |
| 525 | |
| 526 | static inline void ath_deinit_leds(struct ath_softc *sc) |
| 527 | { |
| 528 | } |
| 529 | #endif |
| 530 | |
Sujith | 0fca65c | 2010-01-08 10:36:00 +0530 | [diff] [blame] | 531 | |
Vasanthakumar Thiagarajan | 102885a | 2010-09-02 01:34:43 -0700 | [diff] [blame] | 532 | /* Antenna diversity/combining */ |
| 533 | #define ATH_ANT_RX_CURRENT_SHIFT 4 |
| 534 | #define ATH_ANT_RX_MAIN_SHIFT 2 |
| 535 | #define ATH_ANT_RX_MASK 0x3 |
| 536 | |
| 537 | #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50 |
| 538 | #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100 |
| 539 | #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200 |
| 540 | #define ATH_ANT_DIV_COMB_INIT_COUNT 95 |
| 541 | #define ATH_ANT_DIV_COMB_MAX_COUNT 100 |
| 542 | #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30 |
| 543 | #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20 |
| 544 | |
Vasanthakumar Thiagarajan | 102885a | 2010-09-02 01:34:43 -0700 | [diff] [blame] | 545 | #define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1 |
| 546 | #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4 |
| 547 | #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2 |
| 548 | #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2 |
| 549 | |
| 550 | enum ath9k_ant_div_comb_lna_conf { |
| 551 | ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2, |
| 552 | ATH_ANT_DIV_COMB_LNA2, |
| 553 | ATH_ANT_DIV_COMB_LNA1, |
| 554 | ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2, |
| 555 | }; |
| 556 | |
| 557 | struct ath_ant_comb { |
| 558 | u16 count; |
| 559 | u16 total_pkt_count; |
| 560 | bool scan; |
| 561 | bool scan_not_start; |
| 562 | int main_total_rssi; |
| 563 | int alt_total_rssi; |
| 564 | int alt_recv_cnt; |
| 565 | int main_recv_cnt; |
| 566 | int rssi_lna1; |
| 567 | int rssi_lna2; |
| 568 | int rssi_add; |
| 569 | int rssi_sub; |
| 570 | int rssi_first; |
| 571 | int rssi_second; |
| 572 | int rssi_third; |
| 573 | bool alt_good; |
| 574 | int quick_scan_cnt; |
| 575 | int main_conf; |
| 576 | enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf; |
| 577 | enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf; |
| 578 | int first_bias; |
| 579 | int second_bias; |
| 580 | bool first_ratio; |
| 581 | bool second_ratio; |
| 582 | unsigned long scan_start_time; |
| 583 | }; |
| 584 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 585 | /********************/ |
| 586 | /* Main driver core */ |
| 587 | /********************/ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 588 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 589 | /* |
| 590 | * Default cache line size, in bytes. |
| 591 | * Used when PCI device not fully initialized by bootrom/BIOS |
| 592 | */ |
| 593 | #define DEFAULT_CACHELINE 32 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 594 | #define ATH_REGCLASSIDS_MAX 10 |
| 595 | #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */ |
Felix Fietkau | da64762 | 2011-12-14 22:08:03 +0100 | [diff] [blame] | 596 | #define ATH_MAX_SW_RETRIES 30 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 597 | #define ATH_CHAN_MAX 255 |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 598 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 599 | #define ATH_TXPOWER_MAX 100 /* .5 dBm units */ |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 600 | #define ATH_RATE_DUMMY_MARKER 0 |
| 601 | |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 602 | #define SC_OP_INVALID BIT(0) |
| 603 | #define SC_OP_BEACONS BIT(1) |
Sujith Manoharan | 4cb54fa | 2012-06-04 16:27:52 +0530 | [diff] [blame] | 604 | #define SC_OP_RXFLUSH BIT(2) |
| 605 | #define SC_OP_TSF_RESET BIT(3) |
Sujith Manoharan | e6930c4 | 2012-06-04 16:27:58 +0530 | [diff] [blame] | 606 | #define SC_OP_ANI_RUN BIT(4) |
| 607 | #define SC_OP_PRIM_STA_VIF BIT(5) |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 608 | |
| 609 | /* Powersave flags */ |
| 610 | #define PS_WAIT_FOR_BEACON BIT(0) |
| 611 | #define PS_WAIT_FOR_CAB BIT(1) |
| 612 | #define PS_WAIT_FOR_PSPOLL_DATA BIT(2) |
| 613 | #define PS_WAIT_FOR_TX_ACK BIT(3) |
| 614 | #define PS_BEACON_SYNC BIT(4) |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 615 | |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 616 | struct ath_rate_table; |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 617 | |
Ben Greear | 4801416 | 2011-01-15 19:13:48 +0000 | [diff] [blame] | 618 | struct ath9k_vif_iter_data { |
| 619 | const u8 *hw_macaddr; /* phy's hardware address, set |
| 620 | * before starting iteration for |
| 621 | * valid bssid mask. |
| 622 | */ |
| 623 | u8 mask[ETH_ALEN]; /* bssid mask */ |
| 624 | int naps; /* number of AP vifs */ |
| 625 | int nmeshes; /* number of mesh vifs */ |
| 626 | int nstations; /* number of station vifs */ |
Pavel Roskin | e707549 | 2011-06-15 18:01:11 -0400 | [diff] [blame] | 627 | int nwds; /* number of WDS vifs */ |
Ben Greear | 4801416 | 2011-01-15 19:13:48 +0000 | [diff] [blame] | 628 | int nadhocs; /* number of adhoc vifs */ |
Ben Greear | 4801416 | 2011-01-15 19:13:48 +0000 | [diff] [blame] | 629 | }; |
| 630 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 631 | struct ath_softc { |
| 632 | struct ieee80211_hw *hw; |
| 633 | struct device *dev; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 634 | |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 635 | struct survey_info *cur_survey; |
| 636 | struct survey_info survey[ATH9K_NUM_CHANNELS]; |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 637 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 638 | struct tasklet_struct intr_tq; |
| 639 | struct tasklet_struct bcon_tasklet; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 640 | struct ath_hw *sc_ah; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 641 | void __iomem *mem; |
| 642 | int irq; |
David S. Miller | 2d6a5e9 | 2009-03-17 15:01:30 -0700 | [diff] [blame] | 643 | spinlock_t sc_serial_rw; |
Gabor Juhos | 04717cc | 2009-07-14 20:17:13 -0400 | [diff] [blame] | 644 | spinlock_t sc_pm_lock; |
Luis R. Rodriguez | 4bdd1e9 | 2010-10-26 15:27:24 -0700 | [diff] [blame] | 645 | spinlock_t sc_pcu_lock; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 646 | struct mutex mutex; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 647 | struct work_struct paprd_work; |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 648 | struct work_struct hw_check_work; |
Felix Fietkau | 236de51 | 2011-09-03 01:40:25 +0200 | [diff] [blame] | 649 | struct work_struct hw_reset_work; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 650 | struct completion paprd_complete; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 651 | |
Felix Fietkau | cb8d61d | 2011-02-04 20:09:25 +0100 | [diff] [blame] | 652 | unsigned int hw_busy_count; |
| 653 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 654 | u32 intrstatus; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 655 | u32 sc_flags; /* SC_OP_* */ |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 656 | u16 ps_flags; /* PS_* */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 657 | u16 curtxpow; |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 658 | bool ps_enabled; |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 659 | bool ps_idle; |
Ben Greear | 4801416 | 2011-01-15 19:13:48 +0000 | [diff] [blame] | 660 | short nbcnvifs; |
| 661 | short nvifs; |
Gabor Juhos | 709ade9 | 2009-07-14 20:17:15 -0400 | [diff] [blame] | 662 | unsigned long ps_usecount; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 663 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 664 | struct ath_config config; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 665 | struct ath_rx rx; |
| 666 | struct ath_tx tx; |
| 667 | struct ath_beacon beacon; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 668 | struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; |
| 669 | |
Felix Fietkau | 0cf55c2 | 2011-02-27 22:26:40 +0100 | [diff] [blame] | 670 | #ifdef CONFIG_MAC80211_LEDS |
| 671 | bool led_registered; |
| 672 | char led_name[32]; |
| 673 | struct led_classdev led_cdev; |
| 674 | #endif |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 675 | |
Felix Fietkau | 9ac5861 | 2011-01-24 19:23:18 +0100 | [diff] [blame] | 676 | struct ath9k_hw_cal_data caldata; |
| 677 | int last_rssi; |
| 678 | |
Felix Fietkau | a830df0 | 2009-11-23 22:33:27 +0100 | [diff] [blame] | 679 | #ifdef CONFIG_ATH9K_DEBUGFS |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 680 | struct ath9k_debug debug; |
Ben Greear | 7f010c9 | 2011-01-09 23:11:49 -0800 | [diff] [blame] | 681 | spinlock_t nodes_lock; |
| 682 | struct list_head nodes; /* basically, stations */ |
Ben Greear | 60f2d1d | 2011-01-09 23:11:52 -0800 | [diff] [blame] | 683 | unsigned int tx_complete_poll_work_seen; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 684 | #endif |
Vasanthakumar Thiagarajan | 6b96f93 | 2009-05-15 18:59:22 +0530 | [diff] [blame] | 685 | struct ath_beacon_config cur_beacon_conf; |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 686 | struct delayed_work tx_complete_work; |
Vivek Natarajan | 181fb18 | 2011-01-27 14:45:08 +0530 | [diff] [blame] | 687 | struct delayed_work hw_pll_work; |
Rajkumar Manoharan | 01e1891 | 2012-03-15 05:34:27 +0530 | [diff] [blame] | 688 | struct timer_list rx_poll_timer; |
Sujith Manoharan | 4daa776 | 2012-02-22 12:40:44 +0530 | [diff] [blame] | 689 | |
| 690 | #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT |
Luis R. Rodriguez | 2e20250 | 2009-09-09 01:18:09 -0700 | [diff] [blame] | 691 | struct ath_btcoex btcoex; |
Mohammed Shafi Shajakhan | 9e25365 | 2011-11-30 10:41:23 +0530 | [diff] [blame] | 692 | struct ath_mci_coex mci_coex; |
Sujith Manoharan | 4daa776 | 2012-02-22 12:40:44 +0530 | [diff] [blame] | 693 | #endif |
Vasanthakumar Thiagarajan | 5088c2f | 2010-04-15 17:39:34 -0400 | [diff] [blame] | 694 | |
| 695 | struct ath_descdma txsdma; |
Vasanthakumar Thiagarajan | 102885a | 2010-09-02 01:34:43 -0700 | [diff] [blame] | 696 | |
| 697 | struct ath_ant_comb ant_comb; |
Felix Fietkau | 43c3528 | 2011-09-03 01:40:27 +0200 | [diff] [blame] | 698 | u8 ant_tx, ant_rx; |
Zefir Kurtisi | 8e92d3f | 2012-04-03 17:15:50 +0200 | [diff] [blame] | 699 | struct dfs_pattern_detector *dfs_detector; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 700 | }; |
| 701 | |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 702 | void ath9k_tasklet(unsigned long data); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 703 | int ath_cabq_update(struct ath_softc *); |
| 704 | |
Luis R. Rodriguez | 5bb1279 | 2009-09-14 00:55:09 -0700 | [diff] [blame] | 705 | static inline void ath_read_cachesize(struct ath_common *common, int *csz) |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 706 | { |
Luis R. Rodriguez | 5bb1279 | 2009-09-14 00:55:09 -0700 | [diff] [blame] | 707 | common->bus_ops->read_cachesize(common, csz); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 708 | } |
| 709 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 710 | extern struct ieee80211_ops ath9k_ops; |
John W. Linville | 3e6109c | 2011-01-05 09:39:17 -0500 | [diff] [blame] | 711 | extern int ath9k_modparam_nohwcrypt; |
Vivek Natarajan | 9a75c2f | 2010-06-22 11:52:37 +0530 | [diff] [blame] | 712 | extern int led_blink; |
Rajkumar Manoharan | d584747 | 2010-12-20 14:39:51 +0530 | [diff] [blame] | 713 | extern bool is_ath9k_unloaded; |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 714 | |
| 715 | irqreturn_t ath_isr(int irq, void *dev); |
Pavel Roskin | eb93e89 | 2011-07-23 03:55:39 -0400 | [diff] [blame] | 716 | int ath9k_init_device(u16 devid, struct ath_softc *sc, |
Luis R. Rodriguez | 5bb1279 | 2009-09-14 00:55:09 -0700 | [diff] [blame] | 717 | const struct ath_bus_ops *bus_ops); |
Sujith | 285f2dd | 2010-01-08 10:36:07 +0530 | [diff] [blame] | 718 | void ath9k_deinit_device(struct ath_softc *sc); |
Sujith | 285f2dd | 2010-01-08 10:36:07 +0530 | [diff] [blame] | 719 | void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw); |
Felix Fietkau | 43c3528 | 2011-09-03 01:40:27 +0200 | [diff] [blame] | 720 | void ath9k_reload_chainmask_settings(struct ath_softc *sc); |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 721 | |
Ben Greear | 4801416 | 2011-01-15 19:13:48 +0000 | [diff] [blame] | 722 | bool ath9k_uses_beacons(int type); |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 723 | |
Gabor Juhos | 8e26a03 | 2011-04-12 18:23:16 +0200 | [diff] [blame] | 724 | #ifdef CONFIG_ATH9K_PCI |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 725 | int ath_pci_init(void); |
| 726 | void ath_pci_exit(void); |
| 727 | #else |
| 728 | static inline int ath_pci_init(void) { return 0; }; |
| 729 | static inline void ath_pci_exit(void) {}; |
| 730 | #endif |
| 731 | |
Gabor Juhos | 8e26a03 | 2011-04-12 18:23:16 +0200 | [diff] [blame] | 732 | #ifdef CONFIG_ATH9K_AHB |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 733 | int ath_ahb_init(void); |
| 734 | void ath_ahb_exit(void); |
| 735 | #else |
| 736 | static inline int ath_ahb_init(void) { return 0; }; |
| 737 | static inline void ath_ahb_exit(void) {}; |
| 738 | #endif |
| 739 | |
Gabor Juhos | 0bc0798 | 2009-07-14 20:17:14 -0400 | [diff] [blame] | 740 | void ath9k_ps_wakeup(struct ath_softc *sc); |
| 741 | void ath9k_ps_restore(struct ath_softc *sc); |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 742 | |
Mohammed Shafi Shajakhan | ea066d5 | 2010-11-23 20:42:27 +0530 | [diff] [blame] | 743 | u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate); |
| 744 | |
Sujith | 0fca65c | 2010-01-08 10:36:00 +0530 | [diff] [blame] | 745 | void ath_start_rfkill_poll(struct ath_softc *sc); |
| 746 | extern void ath9k_rfkill_poll_state(struct ieee80211_hw *hw); |
Ben Greear | 4801416 | 2011-01-15 19:13:48 +0000 | [diff] [blame] | 747 | void ath9k_calculate_iter_data(struct ieee80211_hw *hw, |
| 748 | struct ieee80211_vif *vif, |
| 749 | struct ath9k_vif_iter_data *iter_data); |
| 750 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 751 | #endif /* ATH9K_H */ |