1 /*	$OpenBSD: malo.h,v 1.10 2010/08/08 16:36:33 deraadt Exp $ */
2 
3 /*
4  * Copyright (c) 2006 Claudio Jeker <claudio@openbsd.org>
5  * Copyright (c) 2006 Marcus Glocker <mglocker@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 int malo_init(struct ifnet *);
133 void malo_stop(struct ifnet *, int disable);
134