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if_wpivar.h revision 1.5 
      1 /*  $NetBSD: if_wpivar.h,v 1.5 2007/06/18 19:40:49 degroote Exp $    */
      2 
      3 /*-
      4  * Copyright (c) 2006
      5  *	Damien Bergamini <damien.bergamini (at) 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 struct wpi_rx_radiotap_header {
     21 	struct ieee80211_radiotap_header wr_ihdr;
     22 	uint64_t	wr_tsft;
     23 	uint8_t		wr_flags;
     24 	uint8_t		wr_rate;
     25 	uint16_t	wr_chan_freq;
     26 	uint16_t	wr_chan_flags;
     27 	int8_t		wr_dbm_antsignal;
     28 	int8_t		wr_dbm_antnoise;
     29 	uint8_t		wr_antenna;
     30 };
     31 
     32 #define WPI_RX_RADIOTAP_PRESENT						\
     33 	((1 << IEEE80211_RADIOTAP_TSFT) |				\
     34 	 (1 << IEEE80211_RADIOTAP_FLAGS) |				\
     35 	 (1 << IEEE80211_RADIOTAP_RATE) |				\
     36 	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
     37 	 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |			\
     38 	 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |			\
     39 	 (1 << IEEE80211_RADIOTAP_ANTENNA))
     40 
     41 struct wpi_tx_radiotap_header {
     42 	struct ieee80211_radiotap_header wt_ihdr;
     43 	uint8_t		wt_flags;
     44 	uint8_t		wt_rate;
     45 	uint16_t	wt_chan_freq;
     46 	uint16_t	wt_chan_flags;
     47 	uint8_t		wt_hwqueue;
     48 };
     49 
     50 #define WPI_TX_RADIOTAP_PRESENT						\
     51 	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
     52 	 (1 << IEEE80211_RADIOTAP_RATE) |				\
     53 	 (1 << IEEE80211_RADIOTAP_CHANNEL))
     54 
     55 struct wpi_dma_info {
     56 	bus_dma_tag_t		tag;
     57 	bus_dmamap_t		map;
     58 	bus_dma_segment_t	seg;
     59 	bus_addr_t		paddr;
     60 	void *			vaddr;
     61 	bus_size_t		size;
     62 };
     63 
     64 struct wpi_tx_data {
     65 	bus_dmamap_t		map;
     66 	struct mbuf		*m;
     67 	struct ieee80211_node	*ni;
     68 };
     69 
     70 struct wpi_tx_ring {
     71 	struct wpi_dma_info	desc_dma;
     72 	struct wpi_dma_info	cmd_dma;
     73 	struct wpi_tx_desc	*desc;
     74 	struct wpi_tx_cmd	*cmd;
     75 	struct wpi_tx_data	*data;
     76 	int			qid;
     77 	int			count;
     78 	int			queued;
     79 	int			cur;
     80 };
     81 
     82 #define WPI_RBUF_COUNT	(WPI_RX_RING_COUNT + 16)
     83 #define WPI_RBUF_LOW_LIMIT	8
     84 
     85 struct wpi_softc;
     86 
     87 struct wpi_rbuf {
     88 	struct wpi_softc	*sc;
     89 	void *			vaddr;
     90 	bus_addr_t		paddr;
     91 	SLIST_ENTRY(wpi_rbuf)	next;
     92 };
     93 
     94 struct wpi_rx_data {
     95 	struct mbuf	*m;
     96 };
     97 
     98 struct wpi_rx_ring {
     99 	struct wpi_dma_info	desc_dma;
    100 	struct wpi_dma_info	buf_dma;
    101 	uint32_t		*desc;
    102 	struct wpi_rx_data	data[WPI_RX_RING_COUNT];
    103 	struct wpi_rbuf		rbuf[WPI_RBUF_COUNT];
    104 	SLIST_HEAD(, wpi_rbuf)	freelist;
    105 	int			nb_free_entries;
    106 	int			cur;
    107 };
    108 
    109 struct wpi_node {
    110 	struct	ieee80211_node ni;	/* must be the first */
    111 	struct	ieee80211_amrr_node	amn;
    112 };
    113 
    114 struct wpi_softc {
    115 	struct device		sc_dev;
    116 	struct ethercom	 	sc_ec;
    117 	struct ieee80211com	sc_ic;
    118 	int			(*sc_newstate)(struct ieee80211com *,
    119 					enum ieee80211_state, int);
    120 
    121 	struct ieee80211_amrr	amrr;
    122 
    123 	uint32_t		flags;
    124 #define WPI_FLAG_FW_INITED	(1 << 0)
    125 
    126 	bus_dma_tag_t		sc_dmat;
    127 
    128 	/* shared area */
    129 	struct wpi_dma_info	shared_dma;
    130 	struct wpi_shared	*shared;
    131 
    132 	struct wpi_tx_ring	txq[4];
    133 	struct wpi_tx_ring	cmdq;
    134 	struct wpi_tx_ring	svcq;
    135 	struct wpi_rx_ring	rxq;
    136 
    137 	bus_space_tag_t		sc_st;
    138 	bus_space_handle_t	sc_sh;
    139 	void 			*sc_ih;
    140 	pci_chipset_tag_t	sc_pct;
    141 	pcitag_t		sc_pcitag;
    142 	bus_size_t		sc_sz;
    143 
    144 	struct callout	amrr_ch;
    145 
    146 	struct wpi_config	config;
    147 	uint16_t		pwr1[14];
    148 	uint16_t		pwr2[14];
    149 
    150 	int			sc_tx_timer;
    151 	void			*powerhook;
    152 
    153 #if NBPFILTER > 0
    154 	void *			sc_drvbpf;
    155 
    156 	union {
    157 		struct wpi_rx_radiotap_header th;
    158 		uint8_t pad[IEEE80211_RADIOTAP_HDRLEN];
    159 	} sc_rxtapu;
    160 #define sc_rxtap	sc_rxtapu.th
    161 	int			sc_rxtap_len;
    162 
    163 	union {
    164 		struct wpi_tx_radiotap_header th;
    165 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    166 	} sc_txtapu;
    167 #define sc_txtap	sc_txtapu.th
    168 	int			sc_txtap_len;
    169 #endif
    170 };
    171