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@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
22struct malo_rx_desc;
23struct malo_rx_data;
24
25struct 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
36struct malo_tx_desc;
37struct malo_tx_data;
38
39struct 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
57struct 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
69struct 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
77struct 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
129int malo_intr(void *arg);
130int malo_attach(struct malo_softc *sc);
131int malo_detach(void *arg);
132