1/*	$FreeBSD$	*/
2
3/*-
4 * Copyright (c) 2006,2007
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#include <net80211/ieee80211_amrr.h>
20
21struct wpi_rx_radiotap_header {
22	struct ieee80211_radiotap_header wr_ihdr;
23	uint64_t	wr_tsft;
24	uint8_t		wr_flags;
25	uint8_t		wr_rate;
26	uint16_t	wr_chan_freq;
27	uint16_t	wr_chan_flags;
28	int8_t		wr_dbm_antsignal;
29	int8_t		wr_dbm_antnoise;
30	uint8_t		wr_antenna;
31};
32
33#define WPI_RX_RADIOTAP_PRESENT						\
34	((1 << IEEE80211_RADIOTAP_TSFT) |				\
35	 (1 << IEEE80211_RADIOTAP_FLAGS) |				\
36	 (1 << IEEE80211_RADIOTAP_RATE) |				\
37	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
38	 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |			\
39	 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |			\
40	 (1 << IEEE80211_RADIOTAP_ANTENNA))
41
42struct wpi_tx_radiotap_header {
43	struct ieee80211_radiotap_header wt_ihdr;
44	uint8_t		wt_flags;
45	uint8_t		wt_rate;
46	uint16_t	wt_chan_freq;
47	uint16_t	wt_chan_flags;
48	uint8_t		wt_hwqueue;
49};
50
51#define WPI_TX_RADIOTAP_PRESENT						\
52	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
53	 (1 << IEEE80211_RADIOTAP_RATE) |				\
54	 (1 << IEEE80211_RADIOTAP_CHANNEL))
55
56struct wpi_dma_info {
57	bus_dma_tag_t		tag;
58	bus_dmamap_t            map;
59	bus_addr_t		paddr;	      /* aligned p address */
60	bus_addr_t		paddr_start;  /* possibly unaligned p start*/
61	caddr_t			vaddr;	      /* aligned v address */
62	caddr_t			vaddr_start;  /* possibly unaligned v start */
63	bus_size_t		size;
64};
65
66struct wpi_tx_data {
67	bus_dmamap_t		map;
68	struct mbuf		*m;
69	struct ieee80211_node	*ni;
70};
71
72struct wpi_tx_ring {
73	struct wpi_dma_info	desc_dma;
74	struct wpi_dma_info	cmd_dma;
75	struct wpi_tx_desc	*desc;
76	struct wpi_tx_cmd	*cmd;
77	struct wpi_tx_data	*data;
78	bus_dma_tag_t		data_dmat;
79	int			qid;
80	int			count;
81	int			queued;
82	int			cur;
83};
84
85#define WPI_RBUF_COUNT ( WPI_RX_RING_COUNT + 16 )
86
87struct wpi_rx_data {
88	bus_dmamap_t		map;
89	struct mbuf		*m;
90};
91
92struct wpi_rx_ring {
93	struct wpi_dma_info	desc_dma;
94	uint32_t		*desc;
95	struct wpi_rx_data	data[WPI_RX_RING_COUNT];
96	bus_dma_tag_t		data_dmat;
97	int			cur;
98};
99
100struct wpi_amrr {
101	struct	ieee80211_node ni;	/* must be the first */
102	int	txcnt;
103	int	retrycnt;
104	int	success;
105	int	success_threshold;
106	int	recovery;
107};
108
109struct wpi_power_sample {
110	uint8_t	index;
111	int8_t	power;
112};
113
114struct wpi_power_group {
115#define WPI_SAMPLES_COUNT	5
116	struct wpi_power_sample samples[WPI_SAMPLES_COUNT];
117	uint8_t	chan;
118	int8_t	maxpwr;
119	int16_t	temp;
120};
121
122struct wpi_vap {
123	struct ieee80211vap	vap;
124
125	int			(*newstate)(struct ieee80211vap *,
126				    enum ieee80211_state, int);
127};
128#define	WPI_VAP(vap)	((struct wpi_vap *)(vap))
129
130struct wpi_softc {
131	device_t		sc_dev;
132	struct ifnet		*sc_ifp;
133	struct mtx		sc_mtx;
134
135	/* Flags indicating the current state the driver
136	 * expects the hardware to be in
137	 */
138	uint32_t		flags;
139#define WPI_FLAG_HW_RADIO_OFF	(1 << 0)
140#define WPI_FLAG_BUSY		(1 << 1)
141#define WPI_FLAG_AUTH		(1 << 2)
142
143	/* shared area */
144	struct wpi_dma_info	shared_dma;
145	struct wpi_shared	*shared;
146
147	struct wpi_tx_ring	txq[WME_NUM_AC];
148	struct wpi_tx_ring	cmdq;
149	struct wpi_rx_ring	rxq;
150
151	/* TX Thermal Callibration */
152	struct callout		calib_to;
153	int			calib_cnt;
154
155	/* Watch dog timer */
156	struct callout		watchdog_to;
157	/* Hardware switch polling timer */
158	struct callout		hwswitch_to;
159
160	struct resource		*irq;
161	struct resource		*mem;
162	bus_space_tag_t		sc_st;
163	bus_space_handle_t	sc_sh;
164	void			*sc_ih;
165
166	struct wpi_config	config;
167	int			temp;
168
169
170	int			sc_tx_timer;
171	int			sc_scan_timer;
172
173	struct bpf_if		*sc_drvbpf;
174
175	struct wpi_rx_radiotap_header sc_rxtap;
176	struct wpi_tx_radiotap_header sc_txtap;
177
178	/* firmware image */
179	const struct firmware	*fw_fp;
180
181	/* firmware DMA transfer */
182	struct wpi_dma_info	fw_dma;
183
184	/* Tasks used by the driver */
185	struct task		sc_restarttask;	/* reset firmware task */
186	struct task		sc_radiotask;	/* reset rf task */
187
188       /* Eeprom info */
189	uint8_t			cap;
190	uint16_t		rev;
191	uint8_t			type;
192	struct wpi_power_group	groups[WPI_POWER_GROUPS_COUNT];
193	int8_t			maxpwr[IEEE80211_CHAN_MAX];
194	char			domain[4];	/*reglatory domain XXX */
195};
196#define WPI_LOCK_INIT(_sc) \
197	mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
198            MTX_NETWORK_LOCK, MTX_DEF)
199#define WPI_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
200#define WPI_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
201#define WPI_LOCK_ASSERT(sc)     mtx_assert(&(sc)->sc_mtx, MA_OWNED)
202#define WPI_LOCK_DESTROY(_sc)	mtx_destroy(&(_sc)->sc_mtx)
203