if_ipwvar.h revision 172567 
1/*      $FreeBSD: head/sys/dev/ipw/if_ipwvar.h 172567 2007-10-12 05:23:00Z thompsa $	*/
2
3/*-
4 * Copyright (c) 2004-2006
5 *      Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice unmodified, this list of conditions, and the following
12 *    disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#define IPW_MAX_NSEG	1
31
32struct ipw_soft_bd {
33	struct ipw_bd	*bd;
34	int		type;
35#define IPW_SBD_TYPE_NOASSOC	0
36#define IPW_SBD_TYPE_COMMAND	1
37#define IPW_SBD_TYPE_HEADER	2
38#define IPW_SBD_TYPE_DATA	3
39	void		*priv;
40};
41
42struct ipw_soft_hdr {
43	struct ipw_hdr			hdr;
44	bus_dmamap_t			map;
45	SLIST_ENTRY(ipw_soft_hdr)	next;
46};
47
48struct ipw_soft_buf {
49	struct mbuf			*m;
50	struct ieee80211_node		*ni;
51	bus_dmamap_t			map;
52	SLIST_ENTRY(ipw_soft_buf)	next;
53};
54
55struct ipw_rx_radiotap_header {
56	struct ieee80211_radiotap_header wr_ihdr;
57	uint8_t		wr_flags;
58	uint16_t	wr_chan_freq;
59	uint16_t	wr_chan_flags;
60	uint8_t		wr_antsignal;
61};
62
63#define IPW_RX_RADIOTAP_PRESENT						\
64	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
65	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
66	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))
67
68struct ipw_tx_radiotap_header {
69	struct ieee80211_radiotap_header wt_ihdr;
70	uint8_t		wt_flags;
71	uint16_t	wt_chan_freq;
72	uint16_t	wt_chan_flags;
73};
74
75#define IPW_TX_RADIOTAP_PRESENT						\
76	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
77	 (1 << IEEE80211_RADIOTAP_CHANNEL))
78
79struct ipw_softc {
80	struct ifnet			*sc_ifp;
81	struct ieee80211com		sc_ic;
82	int				(*sc_newstate)(struct ieee80211com *,
83					    enum ieee80211_state, int);
84	device_t			sc_dev;
85
86	struct mtx			sc_mtx;
87	struct task			sc_init_task;
88	struct task			sc_scan_task;
89	struct task			sc_chan_task;
90	struct task			sc_assoc_task;
91	struct task			sc_disassoc_task;
92	struct callout			sc_wdtimer;	/* watchdog timer */
93
94	uint32_t			flags;
95#define IPW_FLAG_FW_INITED		(1 << 0)
96#define IPW_FLAG_INIT_LOCKED		(1 << 1)
97#define IPW_FLAG_HAS_RADIO_SWITCH	(1 << 2)
98#define	IPW_FLAG_HACK			(1 << 3)
99#define	IPW_FLAG_SCANNING		(1 << 4)
100#define	IPW_FLAG_ENABLED		(1 << 5)
101#define	IPW_FLAG_BUSY			(1 << 6)
102#define	IPW_FLAG_ASSOCIATED		(1 << 7)
103
104	int				irq_rid;
105	int				mem_rid;
106	struct resource			*irq;
107	struct resource			*mem;
108	bus_space_tag_t			sc_st;
109	bus_space_handle_t		sc_sh;
110	void 				*sc_ih;
111	const struct firmware		*sc_firmware;
112
113	int				sc_tx_timer;
114	int				sc_scan_timer;
115
116	bus_dma_tag_t			tbd_dmat;
117	bus_dma_tag_t			rbd_dmat;
118	bus_dma_tag_t			status_dmat;
119	bus_dma_tag_t			cmd_dmat;
120	bus_dma_tag_t			hdr_dmat;
121	bus_dma_tag_t			txbuf_dmat;
122	bus_dma_tag_t			rxbuf_dmat;
123
124	bus_dmamap_t			tbd_map;
125	bus_dmamap_t			rbd_map;
126	bus_dmamap_t			status_map;
127	bus_dmamap_t			cmd_map;
128
129	bus_addr_t			tbd_phys;
130	bus_addr_t			rbd_phys;
131	bus_addr_t			status_phys;
132
133	struct ipw_bd			*tbd_list;
134	struct ipw_bd			*rbd_list;
135	struct ipw_status		*status_list;
136
137	struct ipw_cmd			cmd;
138	struct ipw_soft_bd		stbd_list[IPW_NTBD];
139	struct ipw_soft_buf		tx_sbuf_list[IPW_NDATA];
140	struct ipw_soft_hdr		shdr_list[IPW_NDATA];
141	struct ipw_soft_bd		srbd_list[IPW_NRBD];
142	struct ipw_soft_buf		rx_sbuf_list[IPW_NRBD];
143
144	SLIST_HEAD(, ipw_soft_hdr)	free_shdr;
145	SLIST_HEAD(, ipw_soft_buf)	free_sbuf;
146
147	uint32_t			table1_base;
148	uint32_t			table2_base;
149
150	uint32_t			txcur;
151	uint32_t			txold;
152	uint32_t			rxcur;
153	int				txfree;
154
155	int				dwelltime;
156
157	struct bpf_if			*sc_drvbpf;
158
159	union {
160		struct ipw_rx_radiotap_header th;
161		uint8_t	pad[64];
162	} sc_rxtapu;
163#define sc_rxtap	sc_rxtapu.th
164	int				sc_rxtap_len;
165
166	union {
167		struct ipw_tx_radiotap_header th;
168		uint8_t	pad[64];
169	} sc_txtapu;
170#define sc_txtap	sc_txtapu.th
171	int				sc_txtap_len;
172};
173
174/*
175 * NB.: This models the only instance of async locking in ipw_init_locked
176 *	and must be kept in sync.
177 */
178#define	IPW_LOCK_DECL	int	__waslocked = 0
179#define IPW_LOCK(sc)	do {				\
180	if (!(__waslocked = mtx_owned(&(sc)->sc_mtx)))	\
181		mtx_lock(&sc->sc_mtx);			\
182} while (0)
183#define IPW_UNLOCK(sc)	do {				\
184	if (!__waslocked)				\
185		mtx_unlock(&sc->sc_mtx);		\
186} while (0)
187#define IPW_LOCK_ASSERT(sc)	mtx_assert(&(sc)->sc_mtx, MA_OWNED)
188