1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (c) 2008 Weongyo Jeong <weongyo@FreeBSD.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 enum { 20 URTW_8187B_BULK_RX, 21 URTW_8187B_BULK_TX_BE, 22 URTW_8187B_BULK_TX_BK, 23 URTW_8187B_BULK_TX_VI, 24 URTW_8187B_BULK_TX_VO, 25 URTW_8187B_BULK_TX_EP12, 26 URTW_8187B_N_XFERS = 6 27 }; 28 29 enum { 30 URTW_8187L_BULK_RX, 31 URTW_8187L_BULK_TX_LOW, 32 URTW_8187L_BULK_TX_NORMAL, 33 URTW_8187L_N_XFERS = 3 34 }; 35 36 /* XXX no definition at net80211? */ 37 #define URTW_MAX_CHANNELS 15 38 39 struct urtw_data { 40 struct urtw_softc *sc; 41 uint8_t *buf; 42 uint16_t buflen; 43 struct mbuf *m; 44 struct ieee80211_node *ni; /* NB: tx only */ 45 STAILQ_ENTRY(urtw_data) next; 46 }; 47 typedef STAILQ_HEAD(, urtw_data) urtw_datahead; 48 49 /* XXX not correct.. */ 50 #define URTW_MIN_RXBUFSZ \ 51 (sizeof(struct ieee80211_frame_min)) 52 53 #define URTW_RX_DATA_LIST_COUNT 4 54 #define URTW_TX_DATA_LIST_COUNT 16 55 #define URTW_RX_MAXSIZE 0x9c4 56 #define URTW_TX_MAXSIZE 0x9c4 57 58 struct urtw_rx_radiotap_header { 59 struct ieee80211_radiotap_header wr_ihdr; 60 uint8_t wr_flags; 61 uint16_t wr_chan_freq; 62 uint16_t wr_chan_flags; 63 int8_t wr_dbm_antsignal; 64 } __packed; 65 66 #define URTW_RX_RADIOTAP_PRESENT \ 67 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 68 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 69 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL)) 70 71 struct urtw_tx_radiotap_header { 72 struct ieee80211_radiotap_header wt_ihdr; 73 uint8_t wt_flags; 74 uint16_t wt_chan_freq; 75 uint16_t wt_chan_flags; 76 } __packed; 77 78 #define URTW_TX_RADIOTAP_PRESENT \ 79 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 80 (1 << IEEE80211_RADIOTAP_CHANNEL)) 81 82 struct urtw_vap { 83 struct ieee80211vap vap; 84 int (*newstate)(struct ieee80211vap *, 85 enum ieee80211_state, int); 86 }; 87 #define URTW_VAP(vap) ((struct urtw_vap *)(vap)) 88 89 struct urtw_softc { 90 struct ifnet *sc_ifp; 91 device_t sc_dev; 92 struct usb_device *sc_udev; 93 struct mtx sc_mtx; 94 95 int sc_debug; 96 int sc_if_flags; 97 int sc_flags; 98 #define URTW_INIT_ONCE (1 << 1) 99 #define URTW_RTL8187B (1 << 2) 100 #define URTW_RTL8187B_REV_B (1 << 3) 101 #define URTW_RTL8187B_REV_D (1 << 4) 102 #define URTW_RTL8187B_REV_E (1 << 5) 103 enum ieee80211_state sc_state; 104 105 int sc_epromtype; 106 #define URTW_EEPROM_93C46 0 107 #define URTW_EEPROM_93C56 1 108 uint8_t sc_crcmon; 109 uint8_t sc_bssid[IEEE80211_ADDR_LEN]; 110 111 struct ieee80211_channel *sc_curchan; 112 113 /* for RF */ 114 usb_error_t (*sc_rf_init)(struct urtw_softc *); 115 usb_error_t (*sc_rf_set_chan)(struct urtw_softc *, 116 int); 117 usb_error_t (*sc_rf_set_sens)(struct urtw_softc *, 118 int); 119 usb_error_t (*sc_rf_stop)(struct urtw_softc *); 120 uint8_t sc_rfchip; 121 uint32_t sc_max_sens; 122 uint32_t sc_sens; 123 /* for LED */ 124 struct usb_callout sc_led_ch; 125 struct task sc_led_task; 126 uint8_t sc_psr; 127 uint8_t sc_strategy; 128 #define URTW_LED_GPIO 1 129 uint8_t sc_gpio_ledon; 130 uint8_t sc_gpio_ledinprogress; 131 uint8_t sc_gpio_ledstate; 132 uint8_t sc_gpio_ledpin; 133 uint8_t sc_gpio_blinktime; 134 uint8_t sc_gpio_blinkstate; 135 /* RX/TX */ 136 struct usb_xfer *sc_xfer[URTW_8187B_N_XFERS]; 137 #define URTW_PRIORITY_LOW 0 138 #define URTW_PRIORITY_NORMAL 1 139 #define URTW_DATA_TIMEOUT 10000 /* 10 sec */ 140 #define URTW_8187B_TXPIPE_BE 0x6 /* best effort */ 141 #define URTW_8187B_TXPIPE_BK 0x7 /* background */ 142 #define URTW_8187B_TXPIPE_VI 0x5 /* video */ 143 #define URTW_8187B_TXPIPE_VO 0x4 /* voice */ 144 #define URTW_8187B_TXPIPE_MAX 4 145 struct urtw_data sc_rx[URTW_RX_DATA_LIST_COUNT]; 146 urtw_datahead sc_rx_active; 147 urtw_datahead sc_rx_inactive; 148 struct urtw_data sc_tx[URTW_TX_DATA_LIST_COUNT]; 149 urtw_datahead sc_tx_active; 150 urtw_datahead sc_tx_inactive; 151 urtw_datahead sc_tx_pending; 152 uint8_t sc_rts_retry; 153 uint8_t sc_tx_retry; 154 uint8_t sc_preamble_mode; 155 #define URTW_PREAMBLE_MODE_SHORT 1 156 #define URTW_PREAMBLE_MODE_LONG 2 157 struct callout sc_watchdog_ch; 158 int sc_txtimer; 159 int sc_currate; 160 /* TX power */ 161 uint8_t sc_txpwr_cck[URTW_MAX_CHANNELS]; 162 uint8_t sc_txpwr_cck_base; 163 uint8_t sc_txpwr_ofdm[URTW_MAX_CHANNELS]; 164 uint8_t sc_txpwr_ofdm_base; 165 166 struct urtw_rx_radiotap_header sc_rxtap; 167 int sc_rxtap_len; 168 struct urtw_tx_radiotap_header sc_txtap; 169 int sc_txtap_len; 170 }; 171 172 #define URTW_LOCK(sc) mtx_lock(&(sc)->sc_mtx) 173 #define URTW_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx) 174 #define URTW_ASSERT_LOCKED(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED) 175