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malovar.h revision 1.1 
      1 /*	$OpenBSD: malo.h,v 1.10 2010/08/08 16:36:33 deraadt Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2006 Claudio Jeker <claudio (at) openbsd.org>
      5  * Copyright (c) 2006 Marcus Glocker <mglocker (at) openbsd.org>
      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 //#define MALO_DEBUG
     21 
     22 struct malo_rx_desc;
     23 struct malo_rx_data;
     24 
     25 struct malo_rx_ring {
     26 	bus_dmamap_t		map;
     27 	bus_dma_segment_t	seg;
     28 	bus_addr_t		physaddr;
     29 	struct malo_rx_desc	*desc;
     30 	struct malo_rx_data	*data;
     31 	int			count;
     32 	int			cur;
     33 	int			next;
     34 };
     35 
     36 struct malo_tx_desc;
     37 struct malo_tx_data;
     38 
     39 struct malo_tx_ring {
     40 	bus_dmamap_t		map;
     41 	bus_dma_segment_t	seg;
     42 	bus_addr_t		physaddr;
     43 	struct malo_tx_desc	*desc;
     44 	struct malo_tx_data	*data;
     45 	int			count;
     46 	int			queued;
     47 	int			cur;
     48 	int			next;
     49 	int			stat;
     50 };
     51 
     52 // XXX Support for RSSI ?
     53 #define MALO_RX_RADIOTAP_PRESENT					\
     54 	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
     55 	 (1 << IEEE80211_RADIOTAP_CHANNEL))
     56 
     57 struct malo_rx_radiotap_hdr {
     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 } __packed;
     63 
     64 #define MALO_TX_RADIOTAP_PRESENT					\
     65 	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
     66 	 (1 << IEEE80211_RADIOTAP_RATE) |				\
     67 	 (1 << IEEE80211_RADIOTAP_CHANNEL))
     68 
     69 struct malo_tx_radiotap_hdr {
     70 	struct ieee80211_radiotap_header	wt_ihdr;
     71 	uint8_t					wt_flags;
     72 	uint8_t					wt_rate;
     73 	uint16_t				wt_chan_freq;
     74 	uint16_t				wt_chan_flags;
     75 } __packed;
     76 
     77 struct malo_softc {
     78 	device_t		sc_dev;
     79 	struct ethercom		 sc_ec;
     80 	struct ieee80211com	sc_ic;
     81 #define sc_if sc_ec.ec_if
     82 	struct malo_rx_ring	sc_rxring;
     83 	struct malo_tx_ring	sc_txring;
     84 
     85 	bus_dma_tag_t		sc_dmat;
     86 	bus_space_tag_t		sc_mem1_bt;
     87 	bus_space_tag_t		sc_mem2_bt;
     88 	bus_space_handle_t	sc_mem1_bh;
     89 	bus_space_handle_t	sc_mem2_bh;
     90 
     91 	bus_dmamap_t		sc_cmd_dmam;
     92 	bus_dma_segment_t	sc_cmd_dmas;
     93 	void				*sc_cmd_mem;
     94 	bus_addr_t		sc_cmd_dmaaddr;
     95 	uint32_t		*sc_cookie;
     96 	bus_addr_t		sc_cookie_dmaaddr;
     97 
     98 	uint32_t		sc_RxPdWrPtr;
     99 	uint32_t		sc_RxPdRdPtr;
    100 
    101 	int			(*sc_newstate)
    102 				(struct ieee80211com *,
    103 				 enum ieee80211_state, int);
    104 
    105 	int			(*sc_enable)(struct malo_softc *);
    106 	void			(*sc_disable)(struct malo_softc *);
    107 
    108 	struct callout	sc_scan_to;
    109 	int			sc_tx_timer;
    110 	int			sc_last_txrate;
    111 
    112 	struct bpf_if *		sc_drvbpf;
    113 
    114 	union {
    115 		struct malo_rx_radiotap_hdr th;
    116 		uint8_t pad[IEEE80211_RADIOTAP_HDRLEN];
    117 	}		sc_rxtapu;
    118 #define sc_rxtap	sc_rxtapu.th
    119 	int		sc_rxtap_len;
    120 
    121 	union {
    122 		struct malo_tx_radiotap_hdr th;
    123 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    124 	}		sc_txtapu;
    125 #define sc_txtap	sc_txtapu.th
    126 	int		sc_txtap_len;
    127 };
    128 
    129 int malo_intr(void *arg);
    130 int malo_attach(struct malo_softc *sc);
    131 int malo_detach(void *arg);
    132