1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (c) 2005 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 20 #define RAL_TX_LIST_COUNT 8 21 #define RAL_TX_MINFREE 2 22 23 #define URAL_SCAN_START 1 24 #define URAL_SCAN_END 2 25 #define URAL_SET_CHANNEL 3 26 27 struct ural_rx_radiotap_header { 28 struct ieee80211_radiotap_header wr_ihdr; 29 uint8_t wr_flags; 30 uint8_t wr_rate; 31 uint16_t wr_chan_freq; 32 uint16_t wr_chan_flags; 33 int8_t wr_antsignal; 34 int8_t wr_antnoise; 35 uint8_t wr_antenna; 36 } __packed __aligned(8); 37 38 #define RAL_RX_RADIOTAP_PRESENT \ 39 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 40 (1 << IEEE80211_RADIOTAP_RATE) | \ 41 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 42 (1 << IEEE80211_RADIOTAP_ANTENNA) | \ 43 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \ 44 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE)) 45 46 struct ural_tx_radiotap_header { 47 struct ieee80211_radiotap_header wt_ihdr; 48 uint8_t wt_flags; 49 uint8_t wt_rate; 50 uint16_t wt_chan_freq; 51 uint16_t wt_chan_flags; 52 uint8_t wt_antenna; 53 } __packed; 54 55 #define RAL_TX_RADIOTAP_PRESENT \ 56 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 57 (1 << IEEE80211_RADIOTAP_RATE) | \ 58 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 59 (1 << IEEE80211_RADIOTAP_ANTENNA)) 60 61 struct ural_softc; 62 63 struct ural_tx_data { 64 STAILQ_ENTRY(ural_tx_data) next; 65 struct ural_softc *sc; 66 struct ural_tx_desc desc; 67 struct mbuf *m; 68 struct ieee80211_node *ni; 69 int rate; 70 }; 71 typedef STAILQ_HEAD(, ural_tx_data) ural_txdhead; 72 73 struct ural_vap { 74 struct ieee80211vap vap; 75 76 struct usb_callout ratectl_ch; 77 struct task ratectl_task; 78 79 int (*newstate)(struct ieee80211vap *, 80 enum ieee80211_state, int); 81 }; 82 #define URAL_VAP(vap) ((struct ural_vap *)(vap)) 83 84 enum { 85 URAL_BULK_WR, 86 URAL_BULK_RD, 87 URAL_N_TRANSFER = 2, 88 }; 89 90 struct ural_softc { 91 struct ieee80211com sc_ic; 92 struct ieee80211_ratectl_tx_stats sc_txs; 93 struct mbufq sc_snd; 94 device_t sc_dev; 95 struct usb_device *sc_udev; 96 97 uint32_t asic_rev; 98 uint8_t rf_rev; 99 100 struct usb_xfer *sc_xfer[URAL_N_TRANSFER]; 101 102 struct ural_tx_data tx_data[RAL_TX_LIST_COUNT]; 103 ural_txdhead tx_q; 104 ural_txdhead tx_free; 105 int tx_nfree; 106 struct ural_rx_desc sc_rx_desc; 107 108 struct mtx sc_mtx; 109 110 uint16_t sta[11]; 111 uint32_t rf_regs[4]; 112 uint8_t txpow[14]; 113 u_int sc_detached:1, 114 sc_running:1; 115 116 uint8_t sc_bssid[IEEE80211_ADDR_LEN]; 117 118 struct { 119 uint8_t val; 120 uint8_t reg; 121 } __packed bbp_prom[16]; 122 123 int led_mode; 124 int hw_radio; 125 int rx_ant; 126 int tx_ant; 127 int nb_ant; 128 129 struct ural_rx_radiotap_header sc_rxtap; 130 struct ural_tx_radiotap_header sc_txtap; 131 }; 132 133 #define RAL_LOCK(sc) mtx_lock(&(sc)->sc_mtx) 134 #define RAL_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx) 135 #define RAL_LOCK_ASSERT(sc, t) mtx_assert(&(sc)->sc_mtx, t) 136