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 #include <net80211/ieee80211_amrr.h> 20 21 struct wpi_rx_radiotap_header { 22 struct ieee80211_radiotap_header wr_ihdr; 23 uint64_t wr_tsft; 24 uint8_t wr_flags; 25 uint8_t wr_rate; 26 uint16_t wr_chan_freq; 27 uint16_t wr_chan_flags; 28 int8_t wr_dbm_antsignal; 29 int8_t wr_dbm_antnoise; 30 uint8_t wr_antenna; 31 }; 32 33 #define WPI_RX_RADIOTAP_PRESENT \ 34 ((1 << IEEE80211_RADIOTAP_TSFT) | \ 35 (1 << IEEE80211_RADIOTAP_FLAGS) | \ 36 (1 << IEEE80211_RADIOTAP_RATE) | \ 37 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 38 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \ 39 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | \ 40 (1 << IEEE80211_RADIOTAP_ANTENNA)) 41 42 struct wpi_tx_radiotap_header { 43 struct ieee80211_radiotap_header wt_ihdr; 44 uint8_t wt_flags; 45 uint8_t wt_rate; 46 uint16_t wt_chan_freq; 47 uint16_t wt_chan_flags; 48 uint8_t wt_hwqueue; 49 }; 50 51 #define WPI_TX_RADIOTAP_PRESENT \ 52 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 53 (1 << IEEE80211_RADIOTAP_RATE) | \ 54 (1 << IEEE80211_RADIOTAP_CHANNEL)) 55 56 struct wpi_dma_info { 57 bus_dma_tag_t tag; 58 bus_dmamap_t map; 59 bus_addr_t paddr; /* aligned p address */ 60 bus_addr_t paddr_start; /* possibly unaligned p start*/ 61 caddr_t vaddr; /* aligned v address */ 62 caddr_t vaddr_start; /* possibly unaligned v start */ 63 bus_size_t size; 64 }; 65 66 struct wpi_tx_data { 67 bus_dmamap_t map; 68 struct mbuf *m; 69 struct ieee80211_node *ni; 70 }; 71 72 struct wpi_tx_ring { 73 struct wpi_dma_info desc_dma; 74 struct wpi_dma_info cmd_dma; 75 struct wpi_tx_desc *desc; 76 struct wpi_tx_cmd *cmd; 77 struct wpi_tx_data *data; 78 bus_dma_tag_t data_dmat; 79 int qid; 80 int count; 81 int queued; 82 int cur; 83 }; 84 85 #define WPI_RBUF_COUNT ( WPI_RX_RING_COUNT + 16 ) 86 87 struct wpi_rx_data { 88 bus_dmamap_t map; 89 struct mbuf *m; 90 }; 91 92 struct wpi_rx_ring { 93 struct wpi_dma_info desc_dma; 94 uint32_t *desc; 95 struct wpi_rx_data data[WPI_RX_RING_COUNT]; 96 bus_dma_tag_t data_dmat; 97 int cur; 98 }; 99 100 struct wpi_amrr { 101 struct ieee80211_node ni; /* must be the first */ 102 int txcnt; 103 int retrycnt; 104 int success; 105 int success_threshold; 106 int recovery; 107 }; 108 109 struct wpi_node { 110 struct ieee80211_node ni; /* must be the first */ 111 struct ieee80211_amrr_node amn; 112 }; 113 #define WPI_NODE(ni) ((struct wpi_node *)(ni)) 114 115 struct wpi_power_sample { 116 uint8_t index; 117 int8_t power; 118 }; 119 120 struct wpi_power_group { 121 #define WPI_SAMPLES_COUNT 5 122 struct wpi_power_sample samples[WPI_SAMPLES_COUNT]; 123 uint8_t chan; 124 int8_t maxpwr; 125 int16_t temp; 126 }; 127 128 struct wpi_vap { 129 struct ieee80211vap vap; 130 struct ieee80211_amrr amrr; 131 132 int (*newstate)(struct ieee80211vap *, 133 enum ieee80211_state, int); 134 }; 135 #define WPI_VAP(vap) ((struct wpi_vap *)(vap)) 136 137 struct wpi_softc { 138 device_t sc_dev; 139 struct ifnet *sc_ifp; 140 struct mtx sc_mtx; 141 142 /* Flags indicating the current state the driver 143 * expects the hardware to be in 144 */ 145 uint32_t flags; 146 #define WPI_FLAG_HW_RADIO_OFF (1 << 0) 147 #define WPI_FLAG_BUSY (1 << 1) 148 #define WPI_FLAG_AUTH (1 << 2) 149 150 /* shared area */ 151 struct wpi_dma_info shared_dma; 152 struct wpi_shared *shared; 153 154 struct wpi_tx_ring txq[WME_NUM_AC]; 155 struct wpi_tx_ring cmdq; 156 struct wpi_rx_ring rxq; 157 158 /* TX Thermal Callibration */ 159 struct callout calib_to; 160 int calib_cnt; 161 162 /* Watch dog timer */ 163 struct callout watchdog_to; 164 /* Hardware switch polling timer */ 165 struct callout hwswitch_to; 166 167 struct resource *irq; 168 struct resource *mem; 169 bus_space_tag_t sc_st; 170 bus_space_handle_t sc_sh; 171 void *sc_ih; 172 int mem_rid; 173 int irq_rid; 174 175 struct wpi_config config; 176 int temp; 177 178 179 int sc_tx_timer; 180 int sc_scan_timer; 181 182 struct bpf_if *sc_drvbpf; 183 184 struct wpi_rx_radiotap_header sc_rxtap; 185 struct wpi_tx_radiotap_header sc_txtap; 186 187 /* firmware image */ 188 const struct firmware *fw_fp; 189 190 /* firmware DMA transfer */ 191 struct wpi_dma_info fw_dma; 192 193 /* Tasks used by the driver */ 194 struct task sc_restarttask; /* reset firmware task */ 195 struct task sc_radiotask; /* reset rf task */ 196 197 /* Eeprom info */ 198 uint8_t cap; 199 uint16_t rev; 200 uint8_t type; 201 struct wpi_power_group groups[WPI_POWER_GROUPS_COUNT]; 202 int8_t maxpwr[IEEE80211_CHAN_MAX]; 203 char domain[4]; /*reglatory domain XXX */ 204 }; 205 #define WPI_LOCK_INIT(_sc) \ 206 mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \ 207 MTX_NETWORK_LOCK, MTX_DEF) 208 #define WPI_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 209 #define WPI_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 210 #define WPI_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED) 211 #define WPI_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx) 212