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
21 struct 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
42 struct 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
56 struct 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
66 struct wpi_tx_data {
67 bus_dmamap_t map;
68 struct mbuf *m;
69 struct ieee80211_node *ni;
70 };
71
72 struct 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
87 struct wpi_rx_data {
88 bus_dmamap_t map;
89 struct mbuf *m;
90 };
91
92 struct 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
100 struct 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
109 struct wpi_power_sample {
110 uint8_t index;
111 int8_t power;
112 };
113
114 struct 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
122 struct 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
130 struct 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 int mem_rid;
166 int irq_rid;
167
168 struct wpi_config config;
169 int temp;
170
171
172 int sc_tx_timer;
173 int sc_scan_timer;
174
175 struct bpf_if *sc_drvbpf;
176
177 struct wpi_rx_radiotap_header sc_rxtap;
178 struct wpi_tx_radiotap_header sc_txtap;
179
180 /* firmware image */
181 const struct firmware *fw_fp;
182
183 /* firmware DMA transfer */
184 struct wpi_dma_info fw_dma;
185
186 /* Tasks used by the driver */
187 struct task sc_restarttask; /* reset firmware task */
188 struct task sc_radiotask; /* reset rf task */
189
190 /* Eeprom info */
191 uint8_t cap;
192 uint16_t rev;
193 uint8_t type;
194 struct wpi_power_group groups[WPI_POWER_GROUPS_COUNT];
195 int8_t maxpwr[IEEE80211_CHAN_MAX];
196 char domain[4]; /*reglatory domain XXX */
197 };
198 #define WPI_LOCK_INIT(_sc) \
199 mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
200 MTX_NETWORK_LOCK, MTX_DEF)
201 #define WPI_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
202 #define WPI_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
203 #define WPI_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED)
204 #define WPI_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
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