1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2007 4 * Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2008 Sam Leffler, Errno Consulting 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 20 struct iwn_rx_radiotap_header { 21 struct ieee80211_radiotap_header wr_ihdr; 22 uint64_t wr_tsft; 23 uint8_t wr_flags; 24 uint8_t wr_rate; 25 uint16_t wr_chan_freq; 26 uint16_t wr_chan_flags; 27 int8_t wr_dbm_antsignal; 28 int8_t wr_dbm_antnoise; 29 } __packed; 30 31 #define IWN_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 39 struct iwn_tx_radiotap_header { 40 struct ieee80211_radiotap_header wt_ihdr; 41 uint8_t wt_flags; 42 uint8_t wt_rate; 43 uint16_t wt_chan_freq; 44 uint16_t wt_chan_flags; 45 } __packed; 46 47 #define IWN_TX_RADIOTAP_PRESENT \ 48 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 49 (1 << IEEE80211_RADIOTAP_RATE) | \ 50 (1 << IEEE80211_RADIOTAP_CHANNEL)) 51 52 struct iwn_dma_info { 53 bus_dma_tag_t tag; 54 bus_dmamap_t map; 55 bus_dma_segment_t seg; 56 bus_addr_t paddr; 57 caddr_t vaddr; 58 bus_size_t size; 59 }; 60 61 struct iwn_tx_data { 62 bus_dmamap_t map; 63 struct mbuf *m; 64 struct ieee80211_node *ni; 65 }; 66 67 struct iwn_tx_ring { 68 struct iwn_dma_info desc_dma; 69 struct iwn_dma_info cmd_dma; 70 struct iwn_tx_desc *desc; 71 struct iwn_tx_cmd *cmd; 72 struct iwn_tx_data data[IWN_TX_RING_COUNT]; 73 bus_dma_tag_t data_dmat; 74 int qid; 75 int queued; 76 int cur; 77 }; 78 79 struct iwn_rx_data { 80 bus_dmamap_t map; 81 struct mbuf *m; 82 }; 83 84 struct iwn_rx_ring { 85 struct iwn_dma_info desc_dma; 86 uint32_t *desc; 87 struct iwn_rx_data data[IWN_RX_RING_COUNT]; 88 bus_dma_tag_t data_dmat; 89 int cur; 90 }; 91 92 struct iwn_node { 93 struct ieee80211_node ni; /* must be the first */ 94 struct ieee80211_amrr_node amn; 95 }; 96 #define IWN_NODE(_ni) ((struct iwn_node *)(_ni)) 97 98 struct iwn_calib_state { 99 uint8_t state; 100 #define IWN_CALIB_STATE_INIT 0 101 #define IWN_CALIB_STATE_ASSOC 1 102 #define IWN_CALIB_STATE_RUN 2 103 u_int nbeacons; 104 uint32_t noise[3]; 105 uint32_t rssi[3]; 106 uint32_t corr_ofdm_x1; 107 uint32_t corr_ofdm_mrc_x1; 108 uint32_t corr_ofdm_x4; 109 uint32_t corr_ofdm_mrc_x4; 110 uint32_t corr_cck_x4; 111 uint32_t corr_cck_mrc_x4; 112 uint32_t bad_plcp_ofdm; 113 uint32_t fa_ofdm; 114 uint32_t bad_plcp_cck; 115 uint32_t fa_cck; 116 uint32_t low_fa; 117 uint8_t cck_state; 118 #define IWN_CCK_STATE_INIT 0 119 #define IWN_CCK_STATE_LOFA 1 120 #define IWN_CCK_STATE_HIFA 2 121 uint8_t noise_samples[20]; 122 u_int cur_noise_sample; 123 uint8_t noise_ref; 124 uint32_t energy_samples[10]; 125 u_int cur_energy_sample; 126 uint32_t energy_cck; 127 }; 128 129 struct iwn_vap { 130 struct ieee80211vap iv_vap; 131 struct ieee80211_amrr iv_amrr; 132 struct callout iv_amrr_to; 133 134 int (*iv_newstate)(struct ieee80211vap *, 135 enum ieee80211_state, int); 136 }; 137 #define IWN_VAP(_vap) ((struct iwn_vap *)(_vap)) 138 139 struct iwn_softc { 140 struct ifnet *sc_ifp; 141 int sc_debug; 142 struct callout sc_timer_to; /* calib+watchdog timer */ 143 int sc_tx_timer; /* tx watchdog timer/counter */ 144 const struct ieee80211_channel *sc_curchan; 145 146 struct iwn_rx_radiotap_header sc_rxtap; 147 int sc_rxtap_len; 148 struct iwn_tx_radiotap_header sc_txtap; 149 int sc_txtap_len; 150 151 /* locks */ 152 struct mtx sc_mtx; 153 154 /* bus */ 155 device_t sc_dev; 156 int mem_rid; 157 int irq_rid; 158 struct resource *mem; 159 struct resource *irq; 160 161 /* shared area */ 162 struct iwn_dma_info shared_dma; 163 struct iwn_shared *shared; 164 165 /* "keep warm" page */ 166 struct iwn_dma_info kw_dma; 167 168 /* firmware image */ 169 const struct firmware *fw_fp; 170 171 /* firmware DMA transfer */ 172 struct iwn_dma_info fw_dma; 173 174 /* rings */ 175 struct iwn_tx_ring txq[IWN_NTXQUEUES]; 176 struct iwn_rx_ring rxq; 177 178 bus_space_tag_t sc_st; 179 bus_space_handle_t sc_sh; 180 void *sc_ih; 181 bus_size_t sc_sz; 182 183 /* command queue related variables */ 184 #define IWN_SCAN_START (1<<0) 185 #define IWN_SCAN_CURCHAN (1<<1) 186 #define IWN_SCAN_STOP (1<<2) 187 #define IWN_SET_CHAN (1<<3) 188 #define IWN_AUTH (1<<4) 189 #define IWN_SCAN_NEXT (1<<5) 190 #define IWN_RUN (1<<6) 191 #define IWN_RADIO_ENABLE (1<<7) 192 #define IWN_RADIO_DISABLE (1<<8) 193 #define IWN_REINIT (1<<9) 194 #define IWN_CMD_MAXOPS 10 195 /* command queuing request type */ 196 #define IWN_QUEUE_NORMAL 0 197 #define IWN_QUEUE_CLEAR 1 198 int sc_cmd[IWN_CMD_MAXOPS]; 199 int sc_cmd_arg[IWN_CMD_MAXOPS]; 200 int sc_cmd_cur; /* current queued scan task */ 201 int sc_cmd_next; /* last queued scan task */ 202 struct mtx sc_cmdlock; 203 204 /* Task queues used to control the driver */ 205 struct taskqueue *sc_tq; /* Main command task queue */ 206 207 /* Tasks used by the driver */ 208 struct task sc_ops_task; /* deferred ops */ 209 struct task sc_bmiss_task; /* beacon miss */ 210 211 /* Thermal calibration */ 212 int calib_cnt; 213 struct iwn_calib_state calib; 214 215 struct iwn_rx_stat last_rx_stat; 216 int last_rx_valid; 217 struct iwn_ucode_info ucode_info; 218 struct iwn_config config; 219 uint32_t rawtemp; 220 int temp; 221 int noise; 222 uint8_t antmsk; 223 224 struct iwn_eeprom_band bands[IWN_NBANDS]; 225 int16_t eeprom_voltage; 226 int8_t maxpwr2GHz; 227 int8_t maxpwr5GHz; 228 }; 229 230 #define IWN_LOCK_INIT(_sc) \ 231 mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \ 232 MTX_NETWORK_LOCK, MTX_DEF) 233 #define IWN_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 234 #define IWN_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED) 235 #define IWN_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 236 #define IWN_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx) 237 #define IWN_CMD_LOCK_INIT(_sc) \ 238 mtx_init(&(_sc)->sc_cmdlock, device_get_nameunit((_sc)->sc_dev), \ 239 NULL, MTX_DEF); 240 #define IWN_CMD_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_cmdlock) 241 #define IWN_CMD_LOCK(_sc) mtx_lock(&(_sc)->sc_cmdlock) 242 #define IWN_CMD_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_cmdlock) 243