1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (c) 2004-2006 5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #define IPW_MAX_NSEG 1 31 32 struct ipw_soft_bd { 33 struct ipw_bd *bd; 34 int type; 35 #define IPW_SBD_TYPE_NOASSOC 0 36 #define IPW_SBD_TYPE_COMMAND 1 37 #define IPW_SBD_TYPE_HEADER 2 38 #define IPW_SBD_TYPE_DATA 3 39 void *priv; 40 }; 41 42 struct ipw_soft_hdr { 43 struct ipw_hdr hdr; 44 bus_dmamap_t map; 45 SLIST_ENTRY(ipw_soft_hdr) next; 46 }; 47 48 struct ipw_soft_buf { 49 struct mbuf *m; 50 struct ieee80211_node *ni; 51 bus_dmamap_t map; 52 SLIST_ENTRY(ipw_soft_buf) next; 53 }; 54 55 struct ipw_rx_radiotap_header { 56 struct ieee80211_radiotap_header wr_ihdr; 57 uint8_t wr_flags; 58 uint16_t wr_chan_freq; 59 uint16_t wr_chan_flags; 60 int8_t wr_antsignal; 61 int8_t wr_antnoise; 62 }; 63 64 #define IPW_RX_RADIOTAP_PRESENT \ 65 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 66 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 67 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) | \ 68 (1 << IEEE80211_RADIOTAP_DB_ANTNOISE)) 69 70 struct ipw_tx_radiotap_header { 71 struct ieee80211_radiotap_header wt_ihdr; 72 uint8_t wt_flags; 73 uint16_t wt_chan_freq; 74 uint16_t wt_chan_flags; 75 }; 76 77 #define IPW_TX_RADIOTAP_PRESENT \ 78 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 79 (1 << IEEE80211_RADIOTAP_CHANNEL)) 80 81 struct ipw_vap { 82 struct ieee80211vap vap; 83 84 int (*newstate)(struct ieee80211vap *, 85 enum ieee80211_state, int); 86 }; 87 #define IPW_VAP(vap) ((struct ipw_vap *)(vap)) 88 89 struct ipw_softc { 90 struct ieee80211com sc_ic; 91 struct mbufq sc_snd; 92 device_t sc_dev; 93 94 struct mtx sc_mtx; 95 struct task sc_init_task; 96 struct callout sc_wdtimer; /* watchdog timer */ 97 98 uint32_t flags; 99 #define IPW_FLAG_FW_INITED 0x0001 100 #define IPW_FLAG_INIT_LOCKED 0x0002 101 #define IPW_FLAG_HAS_RADIO_SWITCH 0x0004 102 #define IPW_FLAG_HACK 0x0008 103 #define IPW_FLAG_SCANNING 0x0010 104 #define IPW_FLAG_ENABLED 0x0020 105 #define IPW_FLAG_BUSY 0x0040 106 #define IPW_FLAG_ASSOCIATING 0x0080 107 #define IPW_FLAG_ASSOCIATED 0x0100 108 #define IPW_FLAG_RUNNING 0x0200 109 110 struct resource *irq; 111 struct resource *mem; 112 bus_space_tag_t sc_st; 113 bus_space_handle_t sc_sh; 114 void *sc_ih; 115 const struct firmware *sc_firmware; 116 117 int sc_tx_timer; 118 int sc_scan_timer; 119 120 bus_dma_tag_t parent_dmat; 121 bus_dma_tag_t tbd_dmat; 122 bus_dma_tag_t rbd_dmat; 123 bus_dma_tag_t status_dmat; 124 bus_dma_tag_t cmd_dmat; 125 bus_dma_tag_t hdr_dmat; 126 bus_dma_tag_t txbuf_dmat; 127 bus_dma_tag_t rxbuf_dmat; 128 129 bus_dmamap_t tbd_map; 130 bus_dmamap_t rbd_map; 131 bus_dmamap_t status_map; 132 bus_dmamap_t cmd_map; 133 134 bus_addr_t tbd_phys; 135 bus_addr_t rbd_phys; 136 bus_addr_t status_phys; 137 138 struct ipw_bd *tbd_list; 139 struct ipw_bd *rbd_list; 140 struct ipw_status *status_list; 141 142 struct ipw_cmd cmd; 143 struct ipw_soft_bd stbd_list[IPW_NTBD]; 144 struct ipw_soft_buf tx_sbuf_list[IPW_NDATA]; 145 struct ipw_soft_hdr shdr_list[IPW_NDATA]; 146 struct ipw_soft_bd srbd_list[IPW_NRBD]; 147 struct ipw_soft_buf rx_sbuf_list[IPW_NRBD]; 148 149 SLIST_HEAD(, ipw_soft_hdr) free_shdr; 150 SLIST_HEAD(, ipw_soft_buf) free_sbuf; 151 152 uint32_t table1_base; 153 uint32_t table2_base; 154 155 uint32_t txcur; 156 uint32_t txold; 157 uint32_t rxcur; 158 int txfree; 159 160 uint16_t chanmask; 161 162 struct ipw_rx_radiotap_header sc_rxtap; 163 struct ipw_tx_radiotap_header sc_txtap; 164 }; 165 166 /* 167 * NB.: This models the only instance of async locking in ipw_init_locked 168 * and must be kept in sync. 169 */ 170 #define IPW_LOCK(sc) mtx_lock(&sc->sc_mtx); 171 #define IPW_UNLOCK(sc) mtx_unlock(&sc->sc_mtx); 172 #define IPW_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED) 173