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 uint8_t wr_antsignal; 61 }; 62 63 #define IPW_RX_RADIOTAP_PRESENT \ 64 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 65 (1 << IEEE80211_RADIOTAP_CHANNEL) | \ 66 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)) 67 68 struct ipw_tx_radiotap_header { 69 struct ieee80211_radiotap_header wt_ihdr; 70 uint8_t wt_flags; 71 uint16_t wt_chan_freq; 72 uint16_t wt_chan_flags; 73 }; 74 75 #define IPW_TX_RADIOTAP_PRESENT \ 76 ((1 << IEEE80211_RADIOTAP_FLAGS) | \ 77 (1 << IEEE80211_RADIOTAP_CHANNEL)) 78 79 struct ipw_softc { 80 struct ifnet *sc_ifp; 81 struct ieee80211com sc_ic; 82 int (*sc_newstate)(struct ieee80211com *, 83 enum ieee80211_state, int); 84 device_t sc_dev; 85 86 struct mtx sc_mtx; 87 struct task sc_init_task; 88 89 uint32_t flags; 90 #define IPW_FLAG_FW_INITED (1 << 0) 91 #define IPW_FLAG_INIT_LOCKED (1 << 1) 92 #define IPW_FLAG_HAS_RADIO_SWITCH (1 << 2) 93 #define IPW_FLAG_FW_WARNED (1 << 3) 94 95 int irq_rid; 96 int mem_rid; 97 struct resource *irq; 98 struct resource *mem; 99 bus_space_tag_t sc_st; 100 bus_space_handle_t sc_sh; 101 void *sc_ih; 102 const struct firmware *sc_firmware; 103 104 int sc_tx_timer; 105 106 bus_dma_tag_t tbd_dmat; 107 bus_dma_tag_t rbd_dmat; 108 bus_dma_tag_t status_dmat; 109 bus_dma_tag_t cmd_dmat; 110 bus_dma_tag_t hdr_dmat; 111 bus_dma_tag_t txbuf_dmat; 112 bus_dma_tag_t rxbuf_dmat; 113 114 bus_dmamap_t tbd_map; 115 bus_dmamap_t rbd_map; 116 bus_dmamap_t status_map; 117 bus_dmamap_t cmd_map; 118 119 bus_addr_t tbd_phys; 120 bus_addr_t rbd_phys; 121 bus_addr_t status_phys; 122 123 struct ipw_bd *tbd_list; 124 struct ipw_bd *rbd_list; 125 struct ipw_status *status_list; 126 127 struct ipw_cmd cmd; 128 struct ipw_soft_bd stbd_list[IPW_NTBD]; 129 struct ipw_soft_buf tx_sbuf_list[IPW_NDATA]; 130 struct ipw_soft_hdr shdr_list[IPW_NDATA]; 131 struct ipw_soft_bd srbd_list[IPW_NRBD]; 132 struct ipw_soft_buf rx_sbuf_list[IPW_NRBD]; 133 134 SLIST_HEAD(, ipw_soft_hdr) free_shdr; 135 SLIST_HEAD(, ipw_soft_buf) free_sbuf; 136 137 uint32_t table1_base; 138 uint32_t table2_base; 139 140 uint32_t txcur; 141 uint32_t txold; 142 uint32_t rxcur; 143 int txfree; 144 145 int dwelltime; 146 147 struct bpf_if *sc_drvbpf; 148 149 union { 150 struct ipw_rx_radiotap_header th; 151 uint8_t pad[64]; 152 } sc_rxtapu; 153 #define sc_rxtap sc_rxtapu.th 154 int sc_rxtap_len; 155 156 union { 157 struct ipw_tx_radiotap_header th; 158 uint8_t pad[64]; 159 } sc_txtapu; 160 #define sc_txtap sc_txtapu.th 161 int sc_txtap_len; 162 }; 163