1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (c) 2006,2007 5 * Damien Bergamini <damien.bergamini@free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 struct wpi_rx_radiotap_header { 20 struct ieee80211_radiotap_header wr_ihdr; 21 uint64_t wr_tsft; 22 uint8_t wr_flags; 23 uint8_t wr_rate; 24 uint16_t wr_chan_freq; 25 uint16_t wr_chan_flags; 26 int8_t wr_dbm_antsignal; 27 int8_t wr_dbm_antnoise; 28 uint8_t wr_antenna; 29 } __packed; 30 31 #define WPI_RX_RADIOTAP_PRESENT \ 32 ((1 << IEEE80211_RADIOTAP_TSFT) | \ 33 (1 << IEEE80211_RADIOTAP_FLAGS) | \ 34 (1 << IEEE80211_RADIOTAP_RATE) | \ 35 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 36 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \ 37 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | \ 38 (1 << IEEE80211_RADIOTAP_ANTENNA)) 39 40 struct wpi_tx_radiotap_header { 41 struct ieee80211_radiotap_header wt_ihdr; 42 uint8_t wt_flags; 43 uint8_t wt_rate; 44 uint16_t wt_chan_freq; 45 uint16_t wt_chan_flags; 46 } __packed; 47 48 #define WPI_TX_RADIOTAP_PRESENT \ 49 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 50 (1 << IEEE80211_RADIOTAP_RATE) | \ 51 (1 << IEEE80211_RADIOTAP_CHANNEL)) 52 53 struct wpi_dma_info { 54 bus_dma_tag_t tag; 55 bus_dmamap_t map; 56 bus_addr_t paddr; 57 caddr_t vaddr; 58 bus_size_t size; 59 }; 60 61 struct wpi_tx_data { 62 bus_dmamap_t map; 63 bus_addr_t cmd_paddr; 64 struct mbuf *m; 65 struct ieee80211_node *ni; 66 }; 67 68 struct wpi_tx_ring { 69 struct wpi_dma_info desc_dma; 70 struct wpi_dma_info cmd_dma; 71 struct wpi_tx_desc *desc; 72 struct wpi_tx_cmd *cmd; 73 struct wpi_tx_data data[WPI_TX_RING_COUNT]; 74 bus_dma_tag_t data_dmat; 75 uint8_t qid; 76 uint8_t cur; 77 uint8_t pending; 78 int16_t queued; 79 int update:1; 80 }; 81 82 struct wpi_rx_data { 83 struct mbuf *m; 84 bus_dmamap_t map; 85 }; 86 87 struct wpi_rx_ring { 88 struct wpi_dma_info desc_dma; 89 uint32_t *desc; 90 struct wpi_rx_data data[WPI_RX_RING_COUNT]; 91 bus_dma_tag_t data_dmat; 92 uint16_t cur; 93 int update; 94 }; 95 96 struct wpi_node { 97 struct ieee80211_node ni; /* must be the first */ 98 uint8_t id; 99 }; 100 #define WPI_NODE(ni) ((struct wpi_node *)(ni)) 101 102 struct wpi_power_sample { 103 uint8_t index; 104 int8_t power; 105 }; 106 107 struct wpi_power_group { 108 #define WPI_SAMPLES_COUNT 5 109 struct wpi_power_sample samples[WPI_SAMPLES_COUNT]; 110 uint8_t chan; 111 int8_t maxpwr; 112 int16_t temp; 113 }; 114 115 struct wpi_buf { 116 uint8_t data[56]; /* sizeof(struct wpi_cmd_beacon) */ 117 struct ieee80211_node *ni; 118 struct mbuf *m; 119 size_t size; 120 uint8_t code; 121 uint16_t ac; 122 }; 123 124 struct wpi_vap { 125 struct ieee80211vap wv_vap; 126 127 struct wpi_buf wv_bcbuf; 128 struct mtx wv_mtx; 129 130 uint8_t wv_gtk; 131 #define WPI_VAP_KEY(kid) (1 << kid) 132 133 int (*wv_newstate)(struct ieee80211vap *, 134 enum ieee80211_state, int); 135 void (*wv_recv_mgmt)(struct ieee80211_node *, 136 struct mbuf *, int, 137 const struct ieee80211_rx_stats *, 138 int, int); 139 }; 140 #define WPI_VAP(vap) ((struct wpi_vap *)(vap)) 141 142 #define WPI_VAP_LOCK_INIT(_wvp) \ 143 mtx_init(&(_wvp)->wv_mtx, "lock for wv_bcbuf/wv_boff structures", \ 144 NULL, MTX_DEF) 145 #define WPI_VAP_LOCK(_wvp) mtx_lock(&(_wvp)->wv_mtx) 146 #define WPI_VAP_UNLOCK(_wvp) mtx_unlock(&(_wvp)->wv_mtx) 147 #define WPI_VAP_LOCK_ASSERT(_wvp) mtx_assert(&(_wvp)->wv_mtx, MA_OWNED) 148 #define WPI_VAP_LOCK_DESTROY(_wvp) mtx_destroy(&(_wvp)->wv_mtx) 149 150 struct wpi_fw_part { 151 const uint8_t *text; 152 uint32_t textsz; 153 const uint8_t *data; 154 uint32_t datasz; 155 }; 156 157 struct wpi_fw_info { 158 const uint8_t *data; 159 size_t size; 160 struct wpi_fw_part init; 161 struct wpi_fw_part main; 162 struct wpi_fw_part boot; 163 }; 164 165 struct wpi_softc { 166 device_t sc_dev; 167 int sc_debug; 168 169 int sc_running; 170 171 struct mtx sc_mtx; 172 struct ieee80211com sc_ic; 173 174 struct mtx tx_mtx; 175 176 /* Shared area. */ 177 struct wpi_dma_info shared_dma; 178 struct wpi_shared *shared; 179 180 struct wpi_tx_ring txq[WPI_DRV_NTXQUEUES]; 181 struct mtx txq_mtx; 182 struct mtx txq_state_mtx; 183 184 struct wpi_rx_ring rxq; 185 uint64_t rx_tstamp; 186 187 /* TX Thermal Callibration. */ 188 struct callout calib_to; 189 190 struct callout scan_timeout; 191 struct callout tx_timeout; 192 193 /* Watch dog timer. */ 194 struct callout watchdog_rfkill; 195 196 /* Firmware image. */ 197 struct wpi_fw_info fw; 198 uint32_t errptr; 199 200 struct resource *irq; 201 struct resource *mem; 202 bus_space_tag_t sc_st; 203 bus_space_handle_t sc_sh; 204 void *sc_ih; 205 bus_size_t sc_sz; 206 int sc_cap_off; /* PCIe Capabilities. */ 207 208 struct wpi_rxon rxon; 209 struct mtx rxon_mtx; 210 211 int temp; 212 213 uint32_t nodesmsk; 214 struct mtx nt_mtx; 215 216 void (*sc_node_free)(struct ieee80211_node *); 217 void (*sc_update_rx_ring)(struct wpi_softc *); 218 void (*sc_update_tx_ring)(struct wpi_softc *, 219 struct wpi_tx_ring *); 220 221 struct wpi_rx_radiotap_header sc_rxtap; 222 struct wpi_tx_radiotap_header sc_txtap; 223 224 /* Firmware image. */ 225 const struct firmware *fw_fp; 226 227 /* Firmware DMA transfer. */ 228 struct wpi_dma_info fw_dma; 229 230 /* Tasks used by the driver. */ 231 struct task sc_reinittask; 232 struct task sc_radiooff_task; 233 struct task sc_radioon_task; 234 235 /* Taskqueue */ 236 struct taskqueue *sc_tq; 237 238 /* Eeprom info. */ 239 uint8_t cap; 240 uint16_t rev; 241 uint8_t type; 242 struct wpi_eeprom_chan 243 eeprom_channels[WPI_CHAN_BANDS_COUNT][WPI_MAX_CHAN_PER_BAND]; 244 struct wpi_power_group groups[WPI_POWER_GROUPS_COUNT]; 245 int8_t maxpwr[IEEE80211_CHAN_MAX]; 246 char domain[4]; /* Regulatory domain. */ 247 }; 248 249 /* 250 * Locking order: 251 * 1. WPI_LOCK; 252 * 2. WPI_RXON_LOCK; 253 * 3. WPI_TX_LOCK; 254 * 4. WPI_NT_LOCK / WPI_VAP_LOCK; 255 * 5. WPI_TXQ_LOCK; 256 * 6. WPI_TXQ_STATE_LOCK; 257 */ 258 259 #define WPI_LOCK_INIT(_sc) \ 260 mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \ 261 MTX_NETWORK_LOCK, MTX_DEF) 262 #define WPI_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 263 #define WPI_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 264 #define WPI_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED) 265 #define WPI_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx) 266 267 #define WPI_RXON_LOCK_INIT(_sc) \ 268 mtx_init(&(_sc)->rxon_mtx, "lock for wpi_rxon structure", NULL, MTX_DEF) 269 #define WPI_RXON_LOCK(_sc) mtx_lock(&(_sc)->rxon_mtx) 270 #define WPI_RXON_UNLOCK(_sc) mtx_unlock(&(_sc)->rxon_mtx) 271 #define WPI_RXON_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->rxon_mtx, MA_OWNED) 272 #define WPI_RXON_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rxon_mtx) 273 274 #define WPI_TX_LOCK_INIT(_sc) \ 275 mtx_init(&(_sc)->tx_mtx, "tx path lock", NULL, MTX_DEF) 276 #define WPI_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx) 277 #define WPI_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx) 278 #define WPI_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx) 279 280 #define WPI_NT_LOCK_INIT(_sc) \ 281 mtx_init(&(_sc)->nt_mtx, "node table lock", NULL, MTX_DEF) 282 #define WPI_NT_LOCK(_sc) mtx_lock(&(_sc)->nt_mtx) 283 #define WPI_NT_UNLOCK(_sc) mtx_unlock(&(_sc)->nt_mtx) 284 #define WPI_NT_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->nt_mtx) 285 286 #define WPI_TXQ_LOCK_INIT(_sc) \ 287 mtx_init(&(_sc)->txq_mtx, "txq/cmdq lock", NULL, MTX_DEF) 288 #define WPI_TXQ_LOCK(_sc) mtx_lock(&(_sc)->txq_mtx) 289 #define WPI_TXQ_UNLOCK(_sc) mtx_unlock(&(_sc)->txq_mtx) 290 #define WPI_TXQ_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->txq_mtx) 291 292 #define WPI_TXQ_STATE_LOCK_INIT(_sc) \ 293 mtx_init(&(_sc)->txq_state_mtx, "txq state lock", NULL, MTX_DEF) 294 #define WPI_TXQ_STATE_LOCK(_sc) mtx_lock(&(_sc)->txq_state_mtx) 295 #define WPI_TXQ_STATE_UNLOCK(_sc) mtx_unlock(&(_sc)->txq_state_mtx) 296 #define WPI_TXQ_STATE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->txq_state_mtx) 297