1/*	$FreeBSD$	*/
2
3/*-
4 * Copyright (c) 2005
5 *	Damien Bergamini <damien.bergamini@free.fr>
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 RAL_TX_LIST_COUNT	8
21#define RAL_TX_MINFREE		2
22
23#define URAL_SCAN_START         1
24#define URAL_SCAN_END           2
25#define URAL_SET_CHANNEL        3
26
27struct ural_rx_radiotap_header {
28	struct ieee80211_radiotap_header wr_ihdr;
29	uint8_t		wr_flags;
30	uint8_t		wr_rate;
31	uint16_t	wr_chan_freq;
32	uint16_t	wr_chan_flags;
33	int8_t		wr_antsignal;
34	int8_t		wr_antnoise;
35	uint8_t		wr_antenna;
36} __packed __aligned(8);
37
38#define RAL_RX_RADIOTAP_PRESENT						\
39	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
40	 (1 << IEEE80211_RADIOTAP_RATE) |				\
41	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
42	 (1 << IEEE80211_RADIOTAP_ANTENNA) |				\
43	 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |			\
44	 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
45
46struct ural_tx_radiotap_header {
47	struct ieee80211_radiotap_header wt_ihdr;
48	uint8_t		wt_flags;
49	uint8_t		wt_rate;
50	uint16_t	wt_chan_freq;
51	uint16_t	wt_chan_flags;
52	uint8_t		wt_antenna;
53} __packed;
54
55#define RAL_TX_RADIOTAP_PRESENT						\
56	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
57	 (1 << IEEE80211_RADIOTAP_RATE) |				\
58	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
59	 (1 << IEEE80211_RADIOTAP_ANTENNA))
60
61struct ural_softc;
62
63struct ural_tx_data {
64	STAILQ_ENTRY(ural_tx_data)	next;
65	struct ural_softc		*sc;
66	struct ural_tx_desc		desc;
67	struct mbuf			*m;
68	struct ieee80211_node		*ni;
69	int				rate;
70};
71typedef STAILQ_HEAD(, ural_tx_data) ural_txdhead;
72
73struct ural_vap {
74	struct ieee80211vap		vap;
75
76	struct usb_callout		ratectl_ch;
77	struct task			ratectl_task;
78
79	int				(*newstate)(struct ieee80211vap *,
80					    enum ieee80211_state, int);
81};
82#define	URAL_VAP(vap)	((struct ural_vap *)(vap))
83
84enum {
85	URAL_BULK_WR,
86	URAL_BULK_RD,
87	URAL_N_TRANSFER = 2,
88};
89
90struct ural_softc {
91	struct ieee80211com		sc_ic;
92	struct ieee80211_ratectl_tx_stats sc_txs;
93	struct mbufq			sc_snd;
94	device_t			sc_dev;
95	struct usb_device		*sc_udev;
96
97	uint32_t			asic_rev;
98	uint8_t				rf_rev;
99
100	struct usb_xfer			*sc_xfer[URAL_N_TRANSFER];
101
102	struct ural_tx_data		tx_data[RAL_TX_LIST_COUNT];
103	ural_txdhead			tx_q;
104	ural_txdhead			tx_free;
105	int				tx_nfree;
106	struct ural_rx_desc		sc_rx_desc;
107
108	struct mtx			sc_mtx;
109
110	uint16_t			sta[11];
111	uint32_t			rf_regs[4];
112	uint8_t				txpow[14];
113	u_int				sc_detached:1,
114					sc_running:1;
115
116	uint8_t				sc_bssid[IEEE80211_ADDR_LEN];
117
118	struct {
119		uint8_t			val;
120		uint8_t			reg;
121	} __packed			bbp_prom[16];
122
123	int				led_mode;
124	int				hw_radio;
125	int				rx_ant;
126	int				tx_ant;
127	int				nb_ant;
128
129	struct ural_rx_radiotap_header	sc_rxtap;
130	struct ural_tx_radiotap_header	sc_txtap;
131};
132
133#define RAL_LOCK(sc)		mtx_lock(&(sc)->sc_mtx)
134#define RAL_UNLOCK(sc)		mtx_unlock(&(sc)->sc_mtx)
135#define RAL_LOCK_ASSERT(sc, t)	mtx_assert(&(sc)->sc_mtx, t)
136