4 * Copyright (c) 2004, 2005
5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
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.
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
30 struct iwi_rx_radiotap_header {
31 struct ieee80211_radiotap_header wr_ihdr;
34 uint16_t wr_chan_freq;
35 uint16_t wr_chan_flags;
41 #define IWI_RX_RADIOTAP_PRESENT \
42 ((1 << IEEE80211_RADIOTAP_FLAGS) | \
43 (1 << IEEE80211_RADIOTAP_RATE) | \
44 (1 << IEEE80211_RADIOTAP_CHANNEL) | \
45 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \
46 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | \
47 (1 << IEEE80211_RADIOTAP_ANTENNA))
49 struct iwi_tx_radiotap_header {
50 struct ieee80211_radiotap_header wt_ihdr;
52 uint16_t wt_chan_freq;
53 uint16_t wt_chan_flags;
56 #define IWI_TX_RADIOTAP_PRESENT \
57 ((1 << IEEE80211_RADIOTAP_FLAGS) | \
58 (1 << IEEE80211_RADIOTAP_CHANNEL))
61 bus_dma_tag_t desc_dmat;
62 bus_dmamap_t desc_map;
64 struct iwi_cmd_desc *desc;
74 struct ieee80211_node *ni;
78 bus_dma_tag_t desc_dmat;
79 bus_dma_tag_t data_dmat;
80 bus_dmamap_t desc_map;
84 struct iwi_tx_desc *desc;
85 struct iwi_tx_data *data;
100 bus_dma_tag_t data_dmat;
101 struct iwi_rx_data *data;
107 struct ieee80211_node in_node;
109 #define IWI_MAX_IBSSNODE 32
113 const struct firmware *fp; /* image handle */
114 const char *data; /* firmware image data */
115 size_t size; /* firmware image size */
116 const char *name; /* associated image name */
120 struct ieee80211vap iwi_vap;
122 int (*iwi_newstate)(struct ieee80211vap *,
123 enum ieee80211_state, int);
125 #define IWI_VAP(vap) ((struct iwi_vap *)(vap))
128 struct ifnet *sc_ifp;
129 void (*sc_node_free)(struct ieee80211_node *);
133 uint8_t sc_mcast[IEEE80211_ADDR_LEN];
134 struct unrhdr *sc_unr;
137 #define IWI_FLAG_FW_INITED (1 << 0)
138 #define IWI_FLAG_BUSY (1 << 3) /* busy sending a command */
139 #define IWI_FLAG_ASSOCIATED (1 << 4) /* currently associated */
140 #define IWI_FLAG_CHANNEL_SCAN (1 << 5)
142 #define IWI_FW_IDLE 0
143 #define IWI_FW_LOADING 1
144 #define IWI_FW_ASSOCIATING 2
145 #define IWI_FW_DISASSOCIATING 3
146 #define IWI_FW_SCANNING 4
147 struct iwi_cmd_ring cmdq;
148 struct iwi_tx_ring txq[WME_NUM_AC];
149 struct iwi_rx_ring rxq;
151 struct resource *irq;
152 struct resource *mem;
153 bus_space_tag_t sc_st;
154 bus_space_handle_t sc_sh;
160 * The card needs external firmware images to work, which is made of a
161 * bootloader, microcode and firmware proper. In version 3.00 and
162 * above, all pieces are contained in a single image, preceded by a
163 * struct iwi_firmware_hdr indicating the size of the 3 pieces.
164 * Old firmware < 3.0 has separate boot and ucode, so we need to
165 * load all of them explicitly.
166 * To avoid issues related to fragmentation, we keep the block of
167 * dma-ble memory around until detach time, and reallocate it when
168 * it becomes too small. fw_dma_size is the size currently allocated.
171 uint32_t fw_flags; /* allocation status */
172 #define IWI_FW_HAVE_DMAT 0x01
173 #define IWI_FW_HAVE_MAP 0x02
174 #define IWI_FW_HAVE_PHY 0x04
175 bus_dma_tag_t fw_dmat;
177 bus_addr_t fw_physaddr;
179 enum ieee80211_opmode fw_mode; /* mode of current firmware */
180 struct iwi_fw fw_boot; /* boot firmware */
181 struct iwi_fw fw_uc; /* microcode */
182 struct iwi_fw fw_fw; /* operating mode support */
184 int curchan; /* current h/w channel # */
187 struct iwi_associate assoc;
188 struct iwi_wme_params wme[3];
191 struct task sc_radiontask; /* radio on processing */
192 struct task sc_radiofftask; /* radio off processing */
193 struct task sc_restarttask; /* restart adapter processing */
194 struct task sc_disassoctask;
195 struct task sc_wmetask; /* set wme parameters */
196 struct task sc_monitortask;
198 unsigned int sc_softled : 1, /* enable LED gpio status */
199 sc_ledstate: 1, /* LED on/off state */
200 sc_blinking: 1; /* LED blink operation active */
201 u_int sc_nictype; /* NIC type from EEPROM */
202 u_int sc_ledpin; /* mask for activity LED */
203 u_int sc_ledidle; /* idle polling interval */
204 int sc_ledevent; /* time of last LED event */
205 u_int8_t sc_rxrate; /* current rx rate for LED */
207 u_int8_t sc_txrate; /* current tx rate for LED */
209 u_int16_t sc_ledoff; /* off time for current blink */
210 struct callout sc_ledtimer; /* led off timer */
211 struct callout sc_wdtimer; /* watchdog timer */
212 struct callout sc_rftimer; /* rfkill timer */
215 int sc_state_timer; /* firmware state timer */
216 int sc_busy_timer; /* firmware cmd timer */
218 struct iwi_rx_radiotap_header sc_rxtap;
219 struct iwi_tx_radiotap_header sc_txtap;
222 #define IWI_STATE_BEGIN(_sc, _state) do { \
223 KASSERT(_sc->fw_state == IWI_FW_IDLE, \
224 ("iwi firmware not idle, state %s", iwi_fw_states[_sc->fw_state]));\
225 _sc->fw_state = _state; \
226 _sc->sc_state_timer = 5; \
227 DPRINTF(("enter %s state\n", iwi_fw_states[_state])); \
230 #define IWI_STATE_END(_sc, _state) do { \
231 if (_sc->fw_state == _state) \
232 DPRINTF(("exit %s state\n", iwi_fw_states[_state])); \
234 DPRINTF(("expected %s state, got %s\n", \
235 iwi_fw_states[_state], iwi_fw_states[_sc->fw_state])); \
236 _sc->fw_state = IWI_FW_IDLE; \
238 _sc->sc_state_timer = 0; \
241 * NB.: This models the only instance of async locking in iwi_init_locked
242 * and must be kept in sync.
244 #define IWI_LOCK_INIT(sc) \
245 mtx_init(&(sc)->sc_mtx, device_get_nameunit((sc)->sc_dev), \
246 MTX_NETWORK_LOCK, MTX_DEF)
247 #define IWI_LOCK_DESTROY(sc) mtx_destroy(&(sc)->sc_mtx)
248 #define IWI_LOCK_DECL int __waslocked = 0
249 #define IWI_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED)
250 #define IWI_LOCK(sc) do { \
251 if (!(__waslocked = mtx_owned(&(sc)->sc_mtx))) \
252 mtx_lock(&(sc)->sc_mtx); \
254 #define IWI_UNLOCK(sc) do { \
256 mtx_unlock(&(sc)->sc_mtx); \