1 /* $FreeBSD$ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 2004-2006 7 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice unmodified, this list of conditions, and the following 14 * disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #define IPW_MAX_NSEG 1 33 34 struct ipw_soft_bd { 35 struct ipw_bd *bd; 36 int type; 37 #define IPW_SBD_TYPE_NOASSOC 0 38 #define IPW_SBD_TYPE_COMMAND 1 39 #define IPW_SBD_TYPE_HEADER 2 40 #define IPW_SBD_TYPE_DATA 3 41 void *priv; 42 }; 43 44 struct ipw_soft_hdr { 45 struct ipw_hdr hdr; 46 bus_dmamap_t map; 47 SLIST_ENTRY(ipw_soft_hdr) next; 48 }; 49 50 struct ipw_soft_buf { 51 struct mbuf *m; 52 struct ieee80211_node *ni; 53 bus_dmamap_t map; 54 SLIST_ENTRY(ipw_soft_buf) next; 55 }; 56 57 struct ipw_rx_radiotap_header { 58 struct ieee80211_radiotap_header wr_ihdr; 59 uint8_t wr_flags; 60 uint16_t wr_chan_freq; 61 uint16_t wr_chan_flags; 62 int8_t wr_antsignal; 63 int8_t wr_antnoise; 64 }; 65 66 #define IPW_RX_RADIOTAP_PRESENT \ 67 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 68 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 69 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) | \ 70 (1 << IEEE80211_RADIOTAP_DB_ANTNOISE)) 71 72 struct ipw_tx_radiotap_header { 73 struct ieee80211_radiotap_header wt_ihdr; 74 uint8_t wt_flags; 75 uint16_t wt_chan_freq; 76 uint16_t wt_chan_flags; 77 }; 78 79 #define IPW_TX_RADIOTAP_PRESENT \ 80 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 81 (1 << IEEE80211_RADIOTAP_CHANNEL)) 82 83 struct ipw_vap { 84 struct ieee80211vap vap; 85 86 int (*newstate)(struct ieee80211vap *, 87 enum ieee80211_state, int); 88 }; 89 #define IPW_VAP(vap) ((struct ipw_vap *)(vap)) 90 91 struct ipw_softc { 92 struct ieee80211com sc_ic; 93 struct mbufq sc_snd; 94 device_t sc_dev; 95 96 struct mtx sc_mtx; 97 struct task sc_init_task; 98 struct callout sc_wdtimer; /* watchdog timer */ 99 100 uint32_t flags; 101 #define IPW_FLAG_FW_INITED 0x0001 102 #define IPW_FLAG_INIT_LOCKED 0x0002 103 #define IPW_FLAG_HAS_RADIO_SWITCH 0x0004 104 #define IPW_FLAG_HACK 0x0008 105 #define IPW_FLAG_SCANNING 0x0010 106 #define IPW_FLAG_ENABLED 0x0020 107 #define IPW_FLAG_BUSY 0x0040 108 #define IPW_FLAG_ASSOCIATING 0x0080 109 #define IPW_FLAG_ASSOCIATED 0x0100 110 #define IPW_FLAG_RUNNING 0x0200 111 112 struct resource *irq; 113 struct resource *mem; 114 bus_space_tag_t sc_st; 115 bus_space_handle_t sc_sh; 116 void *sc_ih; 117 const struct firmware *sc_firmware; 118 119 int sc_tx_timer; 120 int sc_scan_timer; 121 122 bus_dma_tag_t parent_dmat; 123 bus_dma_tag_t tbd_dmat; 124 bus_dma_tag_t rbd_dmat; 125 bus_dma_tag_t status_dmat; 126 bus_dma_tag_t cmd_dmat; 127 bus_dma_tag_t hdr_dmat; 128 bus_dma_tag_t txbuf_dmat; 129 bus_dma_tag_t rxbuf_dmat; 130 131 bus_dmamap_t tbd_map; 132 bus_dmamap_t rbd_map; 133 bus_dmamap_t status_map; 134 bus_dmamap_t cmd_map; 135 136 bus_addr_t tbd_phys; 137 bus_addr_t rbd_phys; 138 bus_addr_t status_phys; 139 140 struct ipw_bd *tbd_list; 141 struct ipw_bd *rbd_list; 142 struct ipw_status *status_list; 143 144 struct ipw_cmd cmd; 145 struct ipw_soft_bd stbd_list[IPW_NTBD]; 146 struct ipw_soft_buf tx_sbuf_list[IPW_NDATA]; 147 struct ipw_soft_hdr shdr_list[IPW_NDATA]; 148 struct ipw_soft_bd srbd_list[IPW_NRBD]; 149 struct ipw_soft_buf rx_sbuf_list[IPW_NRBD]; 150 151 SLIST_HEAD(, ipw_soft_hdr) free_shdr; 152 SLIST_HEAD(, ipw_soft_buf) free_sbuf; 153 154 uint32_t table1_base; 155 uint32_t table2_base; 156 157 uint32_t txcur; 158 uint32_t txold; 159 uint32_t rxcur; 160 int txfree; 161 162 uint16_t chanmask; 163 164 struct ipw_rx_radiotap_header sc_rxtap; 165 struct ipw_tx_radiotap_header sc_txtap; 166 }; 167 168 /* 169 * NB.: This models the only instance of async locking in ipw_init_locked 170 * and must be kept in sync. 171 */ 172 #define IPW_LOCK(sc) mtx_lock(&sc->sc_mtx); 173 #define IPW_UNLOCK(sc) mtx_unlock(&sc->sc_mtx); 174 #define IPW_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED) 175