1 /* 2 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 18 * redistribution must be conditioned upon including a substantially 19 * similar Disclaimer requirement for further binary redistribution. 20 * 3. Neither the names of the above-listed copyright holders nor the names 21 * of any contributors may be used to endorse or promote products derived 22 * from this software without specific prior written permission. 23 * 24 * NO WARRANTY 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 28 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 29 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 30 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 33 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 35 * THE POSSIBILITY OF SUCH DAMAGES. 36 * 37 */ 38 39 /* 40 * ath_impl.h is a bridge between the HAL and the driver. It 41 * defines some data structures encapsulating the HAL interface 42 * and communicating with the IEEE80211 MAC layer and other 43 * driver components. 44 */ 45 46 #ifndef _ATH_IMPL_H 47 #define _ATH_IMPL_H 48 49 #pragma ident "%Z%%M% %I% %E% SMI" 50 51 #ifdef __cplusplus 52 extern "C" { 53 #endif 54 55 /* 56 * Defintions for the Atheros Wireless LAN controller driver. 57 */ 58 59 #include <sys/note.h> 60 #include <sys/list.h> 61 #include <sys/net80211.h> 62 #include "ath_hal.h" 63 64 /* Bit map related macros. */ 65 #define setbit(a, i) ((a)[(i)/NBBY] |= (1 << ((i)%NBBY))) 66 #define clrbit(a, i) ((a)[(i)/NBBY] &= ~(1 << ((i)%NBBY))) 67 #define isset(a, i) ((a)[(i)/NBBY] & (1 << ((i)%NBBY))) 68 #define isclr(a, i) (!((a)[(i)/NBBY] & (1 << ((i)%NBBY)))) 69 70 /* 71 * Bit flags in the ath_dbg_flags 72 */ 73 #define ATH_DBG_INIT 0x00000001 /* initialisation */ 74 #define ATH_DBG_GLD 0x00000002 /* GLD entry points */ 75 #define ATH_DBG_HAL 0x00000004 /* HAL related code */ 76 #define ATH_DBG_INT 0x00000008 /* interrupt handler */ 77 #define ATH_DBG_RECV 0x00000010 /* receive-side code */ 78 #define ATH_DBG_SEND 0x00000020 /* packet-send code */ 79 #define ATH_DBG_80211 0x00000040 /* 80211 state machine */ 80 #define ATH_DBG_IOCTL 0x00000080 /* ioctl code */ 81 #define ATH_DBG_STATS 0x00000100 /* statistics */ 82 #define ATH_DBG_RATE 0x00000200 /* rate control */ 83 #define ATH_DBG_AUX 0x00000400 /* for ath_aux.c */ 84 #define ATH_DBG_WIFICFG 0x00000800 /* wificonfig */ 85 #define ATH_DBG_OSDEP 0x00001000 /* osdep */ 86 #define ATH_DBG_ATTACH 0x00002000 /* attach */ 87 #define ATH_DBG_DETACH 0x00004000 /* detach */ 88 #define ATH_DBG_ALL 0x00007fff /* all */ 89 90 #ifdef DEBUG 91 #define ATH_DDB(command) do { \ 92 { command; } \ 93 _NOTE(CONSTANTCONDITION)\ 94 } while (0) 95 #else 96 #define ATH_DDB(command) 97 #endif /* DEBUG */ 98 99 /* 100 * Node type of wifi device 101 */ 102 #ifndef DDI_NT_NET_WIFI 103 #define DDI_NT_NET_WIFI "ddi_network:wifi" 104 #endif 105 #define ATH_NODENAME "ath" 106 107 #define ATH_DEBUG(args) ATH_DDB(ath_dbg args) 108 109 #define list_empty(a) ((a)->list_head.list_next == &(a)->list_head) 110 #define ATH_LE_READ_4(p) \ 111 ((uint32_t) \ 112 ((((uint8_t *)(p))[0]) | (((uint8_t *)(p))[1] << 8) | \ 113 (((uint8_t *)(p))[2] << 16) | (((uint8_t *)(p))[3] << 24))) 114 #define ATH_N(a) (sizeof (a) / sizeof (a[0])) 115 #define ATH_TXQ_SETUP(asc, i) ((asc)->asc_txqsetup & (1<<i)) 116 #define ATH_PA2DESC(_asc, _pa) \ 117 ((struct ath_desc *)((caddr_t)(_asc)->asc_desc + \ 118 ((_pa) - (_asc)->asc_desc_dma.cookie.dmac_address))) 119 /* 120 * Sync a DMA area described by a dma_area_t 121 */ 122 #define ATH_DMA_SYNC(area, flag) ((void) ddi_dma_sync((area).dma_hdl, \ 123 (area).offset, (area).alength, (flag))) 124 125 #define ATH_TXINTR_PERIOD 5 126 #define ATH_TIMEOUT 1000 127 #define ATH_RXBUF 80 /* number of RX buffers */ 128 #define ATH_TXBUF 200 /* number of TX buffers */ 129 #define ATH_TXDESC 1 /* number of descriptors per buffer */ 130 #define ATH_TXMAXTRY 11 /* max number of transmit attempts */ 131 #define ATH_MCHASH 64 /* multicast hash table size */ 132 133 #define ATH_DEF_CACHE_BYTES 32 /* default cache line size */ 134 135 /* driver-specific node state */ 136 struct ath_node { 137 struct ieee80211_node an_node; /* base class */ 138 uint32_t an_tx_times; /* rate ctl times on one rate */ 139 uint32_t an_tx_ok; /* tx ok pkt */ 140 uint32_t an_tx_err; /* tx !ok pkt */ 141 uint32_t an_tx_retr; /* tx retry count */ 142 int32_t an_tx_upper; /* tx upper rate req cnt */ 143 uint32_t an_tx_antenna; /* antenna for last good frame */ 144 uint8_t an_tx_rix0; /* series 0 rate index */ 145 uint8_t an_tx_try0; /* series 0 try count */ 146 uint8_t an_tx_mgtrate; /* h/w rate for management/ctl frames */ 147 uint8_t an_tx_mgtratesp; /* short preamble h/w rate for " " */ 148 uint8_t an_tx_rate0; /* series 0 h/w rate */ 149 uint8_t an_tx_rate1; /* series 1 h/w rate */ 150 uint8_t an_tx_rate2; /* series 2 h/w rate */ 151 uint8_t an_tx_rate3; /* series 3 h/w rate */ 152 uint8_t an_tx_rate0sp; /* series 0 short preamble h/w rate */ 153 uint8_t an_tx_rate1sp; /* series 1 short preamble h/w rate */ 154 uint8_t an_tx_rate2sp; /* series 2 short preamble h/w rate */ 155 uint8_t an_tx_rate3sp; /* series 3 short preamble h/w rate */ 156 }; 157 #define ATH_NODE(_n) ((struct ath_node *)(_n)) 158 159 160 struct ath_stats { 161 uint32_t ast_hardware; /* fatal hardware error interrupts */ 162 uint32_t ast_rxorn; /* rx overrun interrupts */ 163 uint32_t ast_rxeol; /* rx eol interrupts */ 164 uint32_t ast_txurn; /* tx underrun interrupts */ 165 uint32_t ast_tx_mgmt; /* management frames transmitted */ 166 uint32_t ast_tx_discard; /* frames discarded prior to assoc */ 167 uint32_t ast_tx_invalid; /* frames discarded 'cuz device gone */ 168 uint32_t ast_tx_qstop; /* tx queue stopped 'cuz full */ 169 uint32_t ast_tx_nobuf; /* tx failed 'cuz no tx buffer (data) */ 170 uint32_t ast_tx_nobufmgt; /* tx failed 'cuz no tx buffer(mgmt) */ 171 uint32_t ast_tx_xretries; /* tx failed 'cuz too many retries */ 172 uint32_t ast_tx_fifoerr; /* tx failed 'cuz FIFO underrun */ 173 uint32_t ast_tx_filtered; /* tx failed 'cuz xmit filtered */ 174 uint32_t ast_tx_shortretry; /* tx on-chip retries (short) */ 175 uint32_t ast_tx_longretry; /* tx on-chip retries (long) */ 176 uint32_t ast_tx_noack; /* tx frames with no ack marked */ 177 uint32_t ast_tx_rts; /* tx frames with rts enabled */ 178 uint32_t ast_tx_shortpre; /* tx frames with short preamble */ 179 uint32_t ast_tx_altrate; /* tx frames with alternate rate */ 180 int16_t ast_tx_rssi; /* tx rssi of last ack */ 181 int16_t ast_tx_rssidelta; /* tx rssi delta */ 182 uint32_t ast_rx_crcerr; /* rx failed 'cuz of bad CRC */ 183 uint32_t ast_rx_fifoerr; /* rx failed 'cuz of FIFO overrun */ 184 uint32_t ast_rx_badcrypt; /* rx failed 'cuz decryption */ 185 uint32_t ast_rx_phyerr; /* rx PHY error summary count */ 186 uint32_t ast_rx_phy[32]; /* rx PHY error per-code counts */ 187 uint32_t ast_rx_tooshort; /* rx discarded 'cuz frame too short */ 188 uint32_t ast_per_cal; /* periodic calibration calls */ 189 uint32_t ast_per_calfail; /* periodic calibration failed */ 190 uint32_t ast_per_rfgain; /* periodic calibration rfgain reset */ 191 uint32_t ast_rate_calls; /* rate control checks */ 192 uint32_t ast_rate_raise; /* rate control raised xmit rate */ 193 uint32_t ast_rate_drop; /* rate control dropped xmit rate */ 194 }; 195 196 197 /* 198 * Describes one chunk of allocated DMA-able memory 199 * 200 * In some cases, this is a single chunk as allocated from the system; 201 * but we also use this structure to represent slices carved off such 202 * a chunk. Even when we don't really need all the information, we 203 * use this structure as a convenient way of correlating the various 204 * ways of looking at a piece of memory (kernel VA, IO space DVMA, 205 * handle+offset, etc). 206 */ 207 struct dma_area { 208 ddi_acc_handle_t acc_hdl; /* handle for memory */ 209 caddr_t mem_va; /* CPU VA of memory */ 210 uint32_t nslots; /* number of slots */ 211 uint32_t size; /* size per slot */ 212 size_t alength; /* allocated size */ 213 /* >= product of above */ 214 215 ddi_dma_handle_t dma_hdl; /* DMA handle */ 216 offset_t offset; /* relative to handle */ 217 ddi_dma_cookie_t cookie; /* associated cookie */ 218 uint32_t ncookies; /* must be 1 */ 219 uint32_t token; /* arbitrary identifier */ 220 }; /* 0x50 (80) bytes */ 221 typedef struct dma_area dma_area_t; 222 223 struct ath_buf { 224 int bf_flags; /* tx descriptor flags */ 225 struct ath_desc *bf_desc; /* virtual addr of desc */ 226 uint32_t bf_daddr; /* physical addr of desc */ 227 dma_area_t bf_dma; /* dma area for buf */ 228 struct ieee80211_node *bf_in; /* pointer to the node */ 229 230 /* we're in list of asc->asc_txbuf_list or asc->asc_rxbuf_list */ 231 list_node_t bf_node; 232 }; 233 234 235 /* 236 * Data transmit queue state. One of these exists for each 237 * hardware transmit queue. Packets sent to us from above 238 * are assigned to queues based on their priority. Not all 239 * devices support a complete set of hardware transmit queues. 240 * For those devices the array sc_ac2q will map multiple 241 * priorities to fewer hardware queues (typically all to one 242 * hardware queue). 243 */ 244 struct ath_txq { 245 uint_t axq_qnum; /* hardware q number */ 246 uint_t axq_depth; /* queue depth (stat only) */ 247 uint_t axq_intrcnt; /* interrupt count */ 248 uint32_t *axq_link; /* link ptr in last TX desc */ 249 list_t axq_list; /* transmit queue */ 250 kmutex_t axq_lock; /* lock on q and link */ 251 }; 252 253 254 /* 255 * asc_isc must be the first element, for convience of 256 * casting between iee80211com and ath 257 */ 258 typedef struct ath { 259 ieee80211com_t asc_isc; /* IEEE 802.11 common */ 260 dev_info_t *asc_dev; /* back pointer to dev_info_t */ 261 struct ath_hal *asc_ah; /* Atheros HAL */ 262 uint32_t asc_invalid : 1, /* being detached */ 263 asc_mrretry : 1, /* multi-rate retry support */ 264 asc_have11g : 1, /* have 11g support */ 265 asc_splitmic : 1, /* Split TKIP mic keys */ 266 asc_hasclrkey: 1; /* CLR key supported */ 267 const HAL_RATE_TABLE *asc_rates[IEEE80211_MODE_MAX]; /* h/w rate */ 268 269 ddi_acc_handle_t asc_cfg_handle; /* DDI I/O handle */ 270 ddi_acc_handle_t asc_io_handle; /* DDI I/O handle */ 271 uint16_t asc_cachelsz; /* cache line size */ 272 ddi_iblock_cookie_t asc_iblock; 273 ddi_softintr_t asc_softint_id; 274 275 struct ath_desc *asc_desc; /* TX/RX descriptors */ 276 dma_area_t asc_desc_dma; /* descriptor structure */ 277 /* pointer to the first "struct ath_buf" */ 278 struct ath_buf *asc_vbufptr; 279 /* length of all allocated "struct ath_buf" */ 280 uint32_t asc_vbuflen; 281 /* size of one DMA TX/RX buffer based on 802.11 MTU */ 282 int32_t asc_dmabuf_size; 283 284 list_t asc_rxbuf_list; 285 kmutex_t asc_rxbuflock; /* recv lock for above data */ 286 uint32_t *asc_rxlink; /* link ptr in last RX desc */ 287 uint32_t asc_rx_pend; 288 289 list_t asc_txbuf_list; 290 kmutex_t asc_txbuflock; /* txbuf lock */ 291 292 uint_t asc_txqsetup; /* h/w queues setup */ 293 struct ath_txq asc_txq[HAL_NUM_TX_QUEUES]; /* tx queues */ 294 struct ath_txq *asc_ac2q[5]; /* WME AC -> h/w qnum */ 295 296 const HAL_RATE_TABLE *asc_currates; /* current rate table */ 297 enum ieee80211_phymode asc_curmode; /* current phy mode */ 298 HAL_CHANNEL asc_curchan; /* current h/w channel */ 299 uint8_t asc_rixmap[256]; /* IEEE to h/w rate table ix */ 300 HAL_INT asc_imask; /* interrupt mask copy */ 301 struct ath_stats asc_stats; /* interface statistics */ 302 boolean_t asc_promisc; /* Promiscuous mode enabled */ 303 uint8_t asc_mcast_refs[ATH_MCHASH]; /* refer count */ 304 uint32_t asc_mcast_hash[2]; /* multicast hash table */ 305 kmutex_t asc_genlock; 306 307 boolean_t asc_resched_needed; 308 kmutex_t asc_resched_lock; 309 310 uint32_t asc_keymax; /* size of key cache */ 311 uint8_t asc_keymap[16]; /* bit map of key cache use */ 312 313 timeout_id_t asc_scan_timer; 314 int (*asc_newstate)(ieee80211com_t *, 315 enum ieee80211_state, int); 316 } ath_t; 317 318 #define ATH_STATE(macinfo) ((ath_t *)((macinfo)->gldm_private)) 319 320 #define ATH_LOCK(_asc) mutex_enter(&(_asc)->asc_genlock) 321 #define ATH_UNLOCK(_asc) mutex_exit(&(_asc)->asc_genlock) 322 #define ATH_LOCK_ASSERT(_asc) ASSERT(mutex_owned(&(_asc)->asc_genlock)) 323 324 #define ATH_IS_RUNNING(_asc) ((_asc)->asc_invalid == 0) 325 326 /* Debug and log functions */ 327 void ath_dbg(uint32_t dbg_flags, const char *fmt, ...); /* debug function */ 328 void ath_log(const char *fmt, ...); /* event log function */ 329 void ath_problem(const char *fmt, ...); /* run-time problem function */ 330 331 #ifdef __cplusplus 332 } 333 #endif 334 335 #endif /* _ATH_IMPL_H */ 336