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if_iwnvar.h revision 1.3
      1 /*	$NetBSD: if_iwnvar.h,v 1.3 2008/02/09 19:14:53 skrll Exp $	*/
      2 /*	OpenBSD: if_iwnvar.h,v 1.2 2007/11/19 19:34:25 damien Exp	*/
      3 
      4 /*-
      5  * Copyright (c) 2007
      6  *	Damien Bergamini <damien.bergamini (at) free.fr>
      7  *
      8  * Permission to use, copy, modify, and distribute this software for any
      9  * purpose with or without fee is hereby granted, provided that the above
     10  * copyright notice and this permission notice appear in all copies.
     11  *
     12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     19  */
     20 
     21 struct iwn_rx_radiotap_header {
     22 	struct ieee80211_radiotap_header wr_ihdr;
     23 	uint64_t	wr_tsft;
     24 	uint8_t		wr_flags;
     25 	uint8_t		wr_rate;
     26 	uint16_t	wr_chan_freq;
     27 	uint16_t	wr_chan_flags;
     28 	int8_t		wr_dbm_antsignal;
     29 	int8_t		wr_dbm_antnoise;
     30 } __packed;
     31 
     32 #define IWN_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 
     40 struct iwn_tx_radiotap_header {
     41 	struct ieee80211_radiotap_header wt_ihdr;
     42 	uint8_t		wt_flags;
     43 	uint8_t		wt_rate;
     44 	uint16_t	wt_chan_freq;
     45 	uint16_t	wt_chan_flags;
     46 	uint8_t		wt_hwqueue;
     47 } __packed;
     48 
     49 #define IWN_TX_RADIOTAP_PRESENT						\
     50 	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
     51 	    (1 << IEEE80211_RADIOTAP_RATE) |				\
     52 	    (1 << IEEE80211_RADIOTAP_CHANNEL))
     53 
     54 struct iwn_dma_info {
     55 	bus_dma_tag_t		tag;
     56 	bus_dmamap_t		map;
     57 	bus_dma_segment_t	seg;
     58 	bus_addr_t		paddr;
     59 	void *			vaddr;
     60 	bus_size_t		size;
     61 };
     62 
     63 struct iwn_tx_data {
     64 	bus_dmamap_t		map;
     65 	struct mbuf		*m;
     66 	struct ieee80211_node	*ni;
     67 };
     68 
     69 struct iwn_tx_ring {
     70 	struct iwn_dma_info	desc_dma;
     71 	struct iwn_dma_info	cmd_dma;
     72 	struct iwn_tx_desc	*desc;
     73 	struct iwn_tx_cmd	*cmd;
     74 	struct iwn_tx_data	*data;
     75 	int			qid;
     76 	int			queued;
     77 	int			count;
     78 	int			cur;
     79 };
     80 
     81 #define IWN_RBUF_COUNT	(IWN_RX_RING_COUNT + 32)
     82 
     83 struct iwn_softc;
     84 
     85 struct iwn_rbuf {
     86 	struct iwn_softc	*sc;
     87 	void *			vaddr;
     88 	bus_addr_t		paddr;
     89 	SLIST_ENTRY(iwn_rbuf)	next;
     90 };
     91 
     92 struct iwn_rx_data {
     93 	struct mbuf	*m;
     94 };
     95 
     96 struct iwn_rx_ring {
     97 	struct iwn_dma_info	desc_dma;
     98 	struct iwn_dma_info	buf_dma;
     99 	uint32_t		*desc;
    100 	struct iwn_rx_data	data[IWN_RX_RING_COUNT];
    101 	struct iwn_rbuf		rbuf[IWN_RBUF_COUNT];
    102 	SLIST_HEAD(, iwn_rbuf)	freelist;
    103 	int			nb_free_entries;
    104 	int			cur;
    105 };
    106 
    107 struct iwn_node {
    108 	struct	ieee80211_node		ni;	/* must be the first */
    109 	struct	ieee80211_amrr_node	amn;
    110 };
    111 
    112 struct iwn_calib_state {
    113 	uint8_t		state;
    114 #define IWN_CALIB_STATE_INIT	0
    115 #define IWN_CALIB_STATE_ASSOC	1
    116 #define IWN_CALIB_STATE_RUN	2
    117 
    118 	u_int		nbeacons;
    119 	uint32_t	noise[3];
    120 	uint32_t	rssi[3];
    121 	uint32_t	corr_ofdm_x1;
    122 	uint32_t	corr_ofdm_mrc_x1;
    123 	uint32_t	corr_ofdm_x4;
    124 	uint32_t	corr_ofdm_mrc_x4;
    125 	uint32_t	corr_cck_x4;
    126 	uint32_t	corr_cck_mrc_x4;
    127 	uint32_t	bad_plcp_ofdm;
    128 	uint32_t	fa_ofdm;
    129 	uint32_t	bad_plcp_cck;
    130 	uint32_t	fa_cck;
    131 	uint32_t	low_fa;
    132 	uint8_t		cck_state;
    133 #define IWN_CCK_STATE_INIT	0
    134 #define IWN_CCK_STATE_LOFA	1
    135 #define IWN_CCK_STATE_HIFA	2
    136 
    137 	uint8_t		noise_samples[20];
    138 	u_int		cur_noise_sample;
    139 	uint8_t		noise_ref;
    140 	uint32_t	energy_samples[10];
    141 	u_int		cur_energy_sample;
    142 	uint32_t	energy_cck;
    143 };
    144 
    145 struct iwn_softc {
    146 	device_t			sc_dev;
    147 	struct ethercom	 	sc_ec;
    148 	struct ieee80211com	sc_ic;
    149 	int			(*sc_newstate)(struct ieee80211com *,
    150 	    enum ieee80211_state, int);
    151 
    152 	struct ieee80211_amrr	amrr;
    153 
    154 	bus_dma_tag_t		sc_dmat;
    155 
    156 	/* shared area */
    157 	struct iwn_dma_info	shared_dma;
    158 	struct iwn_shared	*shared;
    159 
    160 	/* "keep warm" page */
    161 	struct iwn_dma_info	kw_dma;
    162 
    163 	/* firmware DMA transfer */
    164 	struct iwn_dma_info	fw_dma;
    165 
    166 	/* rings */
    167 	struct iwn_tx_ring	txq[IWN_NTXQUEUES];
    168 	struct iwn_rx_ring	rxq;
    169 
    170 	bus_space_tag_t		sc_st;
    171 	bus_space_handle_t	sc_sh;
    172 	void 			*sc_ih;
    173 	pci_chipset_tag_t	sc_pct;
    174 	pcitag_t		sc_pcitag;
    175 	bus_size_t		sc_sz;
    176 
    177 	struct callout calib_to;
    178 	int			calib_cnt;
    179 	struct iwn_calib_state	calib;
    180 
    181 	struct iwn_rx_stat	last_rx_stat;
    182 	int			last_rx_valid;
    183 	struct iwn_ucode_info	ucode_info;
    184 	struct iwn_config	config;
    185 	uint32_t		rawtemp;
    186 	int			temp;
    187 	int			noise;
    188 	uint8_t			antmsk;
    189 
    190 	struct iwn_eeprom_band	bands[IWN_NBANDS];
    191 	int16_t			eeprom_voltage;
    192 	int8_t			maxpwr2GHz;
    193 	int8_t			maxpwr5GHz;
    194 	int8_t			maxpwr[IEEE80211_CHAN_MAX];
    195 
    196 	int			sc_tx_timer;
    197 
    198 #if NBPFILTER > 0
    199 	void *			sc_drvbpf;
    200 
    201 	union {
    202 		struct iwn_rx_radiotap_header th;
    203 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    204 	} sc_rxtapu;
    205 #define sc_rxtap	sc_rxtapu.th
    206 	int			sc_rxtap_len;
    207 
    208 	union {
    209 		struct iwn_tx_radiotap_header th;
    210 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    211 	} sc_txtapu;
    212 #define sc_txtap	sc_txtapu.th
    213 	int			sc_txtap_len;
    214 #endif
    215 
    216 	bool		is_scanning;
    217 };
    218