1/*	$OpenBSD: if_iwivar.h,v 1.26 2016/09/05 08:17:48 tedu Exp $	*/
2
3/*-
4 * Copyright (c) 2004-2006
5 *      Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
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
20struct iwi_rx_radiotap_header {
21	struct ieee80211_radiotap_header wr_ihdr;
22	uint8_t		wr_flags;
23	uint8_t		wr_rate;
24	uint16_t	wr_chan_freq;
25	uint16_t	wr_chan_flags;
26	uint8_t		wr_antsignal;
27	uint8_t		wr_antenna;
28} __packed;
29
30#define IWI_RX_RADIOTAP_PRESENT						\
31	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
32	 (1 << IEEE80211_RADIOTAP_RATE) |				\
33	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
34	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |			\
35	 (1 << IEEE80211_RADIOTAP_ANTENNA))
36
37struct iwi_tx_radiotap_header {
38	struct ieee80211_radiotap_header wt_ihdr;
39	uint8_t		wt_flags;
40	uint16_t	wt_chan_freq;
41	uint16_t	wt_chan_flags;
42} __packed;
43
44#define IWI_TX_RADIOTAP_PRESENT						\
45	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
46	 (1 << IEEE80211_RADIOTAP_CHANNEL))
47
48
49struct iwi_cmd_ring {
50	bus_dmamap_t		map;
51	bus_dma_segment_t	seg;
52	struct iwi_cmd_desc	*desc;
53	int			queued;
54	int			cur;
55	int			next;
56};
57
58struct iwi_tx_data {
59	bus_dmamap_t		map;
60	struct mbuf		*m;
61	struct ieee80211_node	*ni;
62};
63
64struct iwi_tx_ring {
65	bus_dmamap_t		map;
66	bus_dma_segment_t	seg;
67	bus_size_t		csr_ridx;
68	bus_size_t		csr_widx;
69	struct iwi_tx_desc	*desc;
70	struct iwi_tx_data	data[IWI_TX_RING_COUNT];
71	int			queued;
72	int			cur;
73	int			next;
74};
75
76struct iwi_rx_data {
77	bus_dmamap_t		map;
78	struct mbuf		*m;
79	uint32_t		reg;
80};
81
82struct iwi_rx_ring {
83	struct iwi_rx_data	data[IWI_RX_RING_COUNT];
84	int			cur;
85};
86
87struct iwi_softc {
88	struct device		sc_dev;
89
90	struct ieee80211com	sc_ic;
91	int			(*sc_newstate)(struct ieee80211com *,
92				    enum ieee80211_state, int);
93
94	struct rwlock		sc_rwlock;
95
96	bus_dma_tag_t		sc_dmat;
97
98	struct iwi_cmd_ring	cmdq;
99	struct iwi_tx_ring	txq[4];
100	struct iwi_rx_ring	rxq;
101
102#define IWI_MAX_NODE	32
103	uint8_t			sta[IWI_MAX_NODE][IEEE80211_ADDR_LEN];
104	uint8_t			nsta;
105
106	bus_space_tag_t		sc_st;
107	bus_space_handle_t	sc_sh;
108	void 			*sc_ih;
109	pci_chipset_tag_t	sc_pct;
110	pcitag_t		sc_pcitag;
111	bus_size_t		sc_sz;
112
113	struct task		init_task;
114
115	int			sc_tx_timer;
116
117#if NBPFILTER > 0
118	caddr_t			sc_drvbpf;
119
120	union {
121		struct iwi_rx_radiotap_header th;
122		uint8_t	pad[64];
123	} sc_rxtapu;
124#define sc_rxtap	sc_rxtapu.th
125	int			sc_rxtap_len;
126
127	union {
128		struct iwi_tx_radiotap_header th;
129		uint8_t	pad[64];
130	} sc_txtapu;
131#define sc_txtap	sc_txtapu.th
132	int			sc_txtap_len;
133#endif
134};
135