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 <netproto/802_11/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_power_sample { 110 uint8_t index; 111 int8_t power; 112 }; 113 114 struct wpi_power_group { 115 #define WPI_SAMPLES_COUNT 5 116 struct wpi_power_sample samples[WPI_SAMPLES_COUNT]; 117 uint8_t chan; 118 int8_t maxpwr; 119 int16_t temp; 120 }; 121 122 struct wpi_vap { 123 struct ieee80211vap vap; 124 125 int (*newstate)(struct ieee80211vap *, 126 enum ieee80211_state, int); 127 }; 128 #define WPI_VAP(vap) ((struct wpi_vap *)(vap)) 129 130 struct wpi_softc { 131 device_t sc_dev; 132 struct ifnet *sc_ifp; 133 struct lock sc_mtx; 134 135 /* Flags indicating the current state the driver 136 * expects the hardware to be in 137 */ 138 uint32_t flags; 139 #define WPI_FLAG_HW_RADIO_OFF (1 << 0) 140 #define WPI_FLAG_BUSY (1 << 1) 141 #define WPI_FLAG_AUTH (1 << 2) 142 143 /* shared area */ 144 struct wpi_dma_info shared_dma; 145 struct wpi_shared *shared; 146 147 struct wpi_tx_ring txq[WME_NUM_AC]; 148 struct wpi_tx_ring cmdq; 149 struct wpi_rx_ring rxq; 150 151 /* TX Thermal Callibration */ 152 struct callout calib_to; 153 int calib_cnt; 154 155 /* Watch dog timer */ 156 struct callout watchdog_to; 157 /* Hardware switch polling timer */ 158 struct callout hwswitch_to; 159 160 struct resource *irq; 161 struct resource *mem; 162 bus_space_tag_t sc_st; 163 bus_space_handle_t sc_sh; 164 void *sc_ih; 165 166 struct wpi_config config; 167 int temp; 168 169 170 int sc_tx_timer; 171 int sc_scan_timer; 172 173 struct bpf_if *sc_drvbpf; 174 175 struct wpi_rx_radiotap_header sc_rxtap; 176 struct wpi_tx_radiotap_header sc_txtap; 177 178 /* firmware image */ 179 const struct firmware *fw_fp; 180 181 /* firmware DMA transfer */ 182 struct wpi_dma_info fw_dma; 183 184 /* Tasks used by the driver */ 185 struct task sc_restarttask; /* reset firmware task */ 186 struct task sc_radiotask; /* reset rf task */ 187 188 /* Eeprom info */ 189 uint8_t cap; 190 uint16_t rev; 191 uint8_t type; 192 struct wpi_power_group groups[WPI_POWER_GROUPS_COUNT]; 193 int8_t maxpwr[IEEE80211_CHAN_MAX]; 194 char domain[4]; /*reglatory domain XXX */ 195 }; 196 197 #define WPI_LOCK_INIT(_sc) \ 198 lockinit(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), 0, 0) 199 #define WPI_LOCK(_sc) lockmgr(&(_sc)->sc_mtx, LK_EXCLUSIVE) 200 #define WPI_UNLOCK(_sc) lockmgr(&(_sc)->sc_mtx, LK_RELEASE) 201 #define WPI_LOCK_ASSERT(_sc) KKASSERT(lockstatus(&(_sc)->sc_mtx, curthread) == LK_EXCLUSIVE) 202 #define WPI_LOCK_DESTROY(_sc) lockuninit(&(_sc)->sc_mtx) 203 204