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iwlwifi: allow consecutive scans in unassociated state
[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / iwl-core.h
CommitLineData
82b9a121
TW		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2008 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
26 *
27 * Contact Information:
28 * Tomas Winkler <tomas.winkler@intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *****************************************************************************/
62
63#ifndef __iwl_core_h__
64#define __iwl_core_h__
65
857485c0
TW		 66/************************
67 * forward declarations *
68 ************************/
69struct iwl_host_cmd;
70struct iwl_cmd;
71
72
d16dc48a 73#define IWLWIFI_VERSION "1.3.27k"
df48c323
TW		 74#define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
75
82b9a121
TW		 76#define IWL_PCI_DEVICE(dev, subdev, cfg) \
77 .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
78 .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
79 .driver_data = (kernel_ulong_t)&(cfg)
80
81#define IWL_SKU_G 0x1
82#define IWL_SKU_A 0x2
83#define IWL_SKU_N 0x8
84
3c424c28 85struct iwl_hcmd_ops {
7e8c519e 86 int (*rxon_assoc)(struct iwl_priv *priv);
3c424c28 87};
857485c0 88struct iwl_hcmd_utils_ops {
c1adf9fb 89 u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
133636de 90 u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
f0832f13
EG		 91 void (*gain_computation)(struct iwl_priv *priv,
92 u32 *average_noise,
93 u16 min_average_noise_antennat_i,
94 u32 min_average_noise);
95 void (*chain_noise_reset)(struct iwl_priv *priv);
a326a5d0
EG		 96 void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
97 __le32 *tx_flags);
caab8f1a
TW		 98 int (*calc_rssi)(struct iwl_priv *priv,
99 struct iwl_rx_phy_res *rx_resp);
857485c0
TW		 100};
101
6bc913bd 102struct iwl_lib_ops {
5425e490
TW		 103 /* set hw dependant perameters */
104 int (*set_hw_params)(struct iwl_priv *priv);
399f4900
RR		 105 /* ucode shared memory */
106 int (*alloc_shared_mem)(struct iwl_priv *priv);
107 void (*free_shared_mem)(struct iwl_priv *priv);
d67f5489 108 int (*shared_mem_rx_idx)(struct iwl_priv *priv);
30e553e3 109 /* Handling TX */
e2a722eb 110 void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
16466903 111 struct iwl_tx_queue *txq,
e2a722eb 112 u16 byte_cnt);
972cf447
TW		 113 void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
114 struct iwl_tx_queue *txq);
115 void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
30e553e3
TW		 116 /* aggregations */
117 int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
118 int sta_id, int tid, u16 ssn_idx);
119 int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
120 u8 tx_fifo);
d4789efe
EG		 121 /* setup Rx handler */
122 void (*rx_handler_setup)(struct iwl_priv *priv);
4e39317d
EG		 123 /* setup deferred work */
124 void (*setup_deferred_work)(struct iwl_priv *priv);
125 /* cancel deferred work */
126 void (*cancel_deferred_work)(struct iwl_priv *priv);
f3ccc08c
EG		 127 /* alive notification after init uCode load */
128 void (*init_alive_start)(struct iwl_priv *priv);
57aab75a
TW		 129 /* alive notification */
130 int (*alive_notify)(struct iwl_priv *priv);
131 /* check validity of rtc data address */
132 int (*is_valid_rtc_data_addr)(u32 addr);
133 /* 1st ucode load */
134 int (*load_ucode)(struct iwl_priv *priv);
91238714 135 /* power management */
6f4083aa 136 struct {
91238714 137 int (*init)(struct iwl_priv *priv);
7f066108 138 int (*reset)(struct iwl_priv *priv);
f118a91d 139 void (*stop)(struct iwl_priv *priv);
694cc56d 140 void (*config)(struct iwl_priv *priv);
6f4083aa
TW		 141 int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
142 } apm_ops;
5da4b55f 143 /* power */
630fe9b6 144 int (*send_tx_power) (struct iwl_priv *priv);
5da4b55f 145 void (*update_chain_flags)(struct iwl_priv *priv);
5225640b 146 void (*temperature) (struct iwl_priv *priv);
6bc913bd
AK		 147 /* eeprom operations (as defined in iwl-eeprom.h) */
148 struct iwl_eeprom_ops eeprom_ops;
149};
150
151struct iwl_ops {
152 const struct iwl_lib_ops *lib;
3c424c28 153 const struct iwl_hcmd_ops *hcmd;
857485c0 154 const struct iwl_hcmd_utils_ops *utils;
6bc913bd
AK		 155};
156
00acbc91
AK		 157struct iwl_mod_params {
158 int disable; /* def: 0 = enable radio */
fcc76c6b 159 int sw_crypto; /* def: 0 = using hardware encryption */
00acbc91
AK		 160 int debug; /* def: 0 = minimal debug log messages */
161 int disable_hw_scan; /* def: 0 = use h/w scan */
162 int num_of_queues; /* def: HW dependent */
9f17b318 163 int num_of_ampdu_queues;/* def: HW dependent */
00acbc91 164 int enable_qos; /* def: 1 = use quality of service */
49779293 165 int disable_11n; /* def: 0 = disable 11n capabilities */
00acbc91
AK		 166 int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */
167 int antenna; /* def: 0 = both antennas (use diversity) */
3a1081e8 168 int restart_fw; /* def: 1 = restart firmware */
00acbc91
AK		 169};
170
82b9a121
TW		 171struct iwl_cfg {
172 const char *name;
173 const char *fw_name;
174 unsigned int sku;
073d3f5f 175 int eeprom_size;
6bc913bd 176 const struct iwl_ops *ops;
00acbc91 177 const struct iwl_mod_params *mod_params;
82b9a121
TW		 178};
179
1d0a082d
AK		 180/***************************
181 * L i b *
182 ***************************/
183
184struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
185 struct ieee80211_ops *hw_ops);
b661c819 186void iwl_hw_detect(struct iwl_priv *priv);
1d0a082d 187
37deb2a0 188void iwl_clear_stations_table(struct iwl_priv *priv);
7c616cba 189void iwl_free_calib_results(struct iwl_priv *priv);
c7de35cd
RR		 190void iwl_reset_qos(struct iwl_priv *priv);
191void iwl_set_rxon_chain(struct iwl_priv *priv);
192int iwl_set_rxon_channel(struct iwl_priv *priv,
bf85ea4f
AK		 193 enum ieee80211_band band,
194 u16 channel);
47c5196e
TW		 195void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info);
196u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
197 struct ieee80211_ht_info *sta_ht_inf);
1053d35f 198int iwl_hw_nic_init(struct iwl_priv *priv);
6ba87956 199int iwl_setup_mac(struct iwl_priv *priv);
da154e30 200int iwl_set_hw_params(struct iwl_priv *priv);
6ba87956
TW		 201int iwl_init_drv(struct iwl_priv *priv);
202void iwl_uninit_drv(struct iwl_priv *priv);
1053d35f
RR		 203/* "keep warm" functions */
204int iwl_kw_init(struct iwl_priv *priv);
205int iwl_kw_alloc(struct iwl_priv *priv);
206void iwl_kw_free(struct iwl_priv *priv);
bf85ea4f 207
a55360e4
TW		 208/*****************************************************
209* RX
210******************************************************/
211void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
212int iwl_rx_queue_alloc(struct iwl_priv *priv);
213void iwl_rx_handle(struct iwl_priv *priv);
214int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
215 struct iwl_rx_queue *q);
216void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
217void iwl_rx_replenish(struct iwl_priv *priv);
1053d35f 218int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
0c70515f
RR		 219int iwl_rx_agg_start(struct iwl_priv *priv, const u8 *addr, int tid, u16 ssn);
220int iwl_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid);
a55360e4
TW		 221/* FIXME: remove when TX is moved to iwl core */
222int iwl_rx_queue_restock(struct iwl_priv *priv);
223int iwl_rx_queue_space(const struct iwl_rx_queue *q);
224void iwl_rx_allocate(struct iwl_priv *priv);
17b88929
TW		 225void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
226int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
c1354754
TW		 227/* Handlers */
228void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
229 struct iwl_rx_mem_buffer *rxb);
8f91aecb
EG		 230void iwl_rx_statistics(struct iwl_priv *priv,
231 struct iwl_rx_mem_buffer *rxb);
a55360e4 232
a332f8d6
TW		 233/* TX helpers */
234
1053d35f
RR		 235/*****************************************************
236* TX
237******************************************************/
238int iwl_txq_ctx_reset(struct iwl_priv *priv);
e039fa4a 239int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
1053d35f 240/* FIXME: remove when free Tx is fully merged into iwlcore */
16466903 241int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
1053d35f 242void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
fd4abac5
TW		 243int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
244 dma_addr_t addr, u16 len);
245int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
30e553e3
TW		 246int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
247int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
248int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id);
a332f8d6 249
630fe9b6
TW		 250/*****************************************************
251 * TX power
252 ****************************************************/
253int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
254
14a08a7f
EG		 255/*****************************************************
256 * RF -Kill - here and not in iwl-rfkill.h to be available when
257 * RF-kill subsystem is not compiled.
258 ****************************************************/
259void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv);
260int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv);
261
e7d326ac
TW		 262/*******************************************************************************
263 * Rate
264 ******************************************************************************/
265
266void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
267 struct ieee80211_tx_info *info);
268int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
269
270static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
271{
272 return le32_to_cpu(rate_n_flags) & 0xFF;
273}
274static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
275{
276 return le32_to_cpu(rate_n_flags) & 0x1FFFF;
277}
278static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
279{
280 return cpu_to_le32(flags|(u32)rate);
281}
282
2a421b91
TW		 283/*******************************************************************************
284 * Scanning
285 ******************************************************************************/
f53696de 286void iwl_init_scan_params(struct iwl_priv *priv);
2a421b91
TW		 287int iwl_scan_cancel(struct iwl_priv *priv);
288int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
289const char *iwl_escape_essid(const char *essid, u8 essid_len);
290int iwl_scan_initiate(struct iwl_priv *priv);
291void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
292void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
293
857485c0
TW		 294/*****************************************************
295 * S e n d i n g H o s t C o m m a n d s *
296 *****************************************************/
297
298const char *get_cmd_string(u8 cmd);
e5472978
TW		 299int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
300 struct iwl_host_cmd *cmd);
857485c0 301int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
e5472978
TW		 302int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
303 u16 len, const void *data);
857485c0
TW		 304int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
305 const void *data,
306 int (*callback)(struct iwl_priv *priv,
307 struct iwl_cmd *cmd,
308 struct sk_buff *skb));
fd4abac5
TW		 309
310int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
189a2b59
EK		 311
312/*****************************************************
313* Error Handling Debugging
314******************************************************/
315void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
316 u32 num_events, u32 mode);
ede0cba4 317void iwl_dump_nic_error_log(struct iwl_priv *priv);
189a2b59
EK		 318void iwl_dump_nic_event_log(struct iwl_priv *priv);
319
fee1247a
TW		 320/*************** DRIVER STATUS FUNCTIONS *****/
321
322#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
323#define STATUS_HCMD_SYNC_ACTIVE 1 /* sync host command in progress */
324#define STATUS_INT_ENABLED 2
325#define STATUS_RF_KILL_HW 3
326#define STATUS_RF_KILL_SW 4
327#define STATUS_INIT 5
328#define STATUS_ALIVE 6
329#define STATUS_READY 7
330#define STATUS_TEMPERATURE 8
331#define STATUS_GEO_CONFIGURED 9
332#define STATUS_EXIT_PENDING 10
333#define STATUS_IN_SUSPEND 11
334#define STATUS_STATISTICS 12
335#define STATUS_SCANNING 13
336#define STATUS_SCAN_ABORTING 14
337#define STATUS_SCAN_HW 15
338#define STATUS_POWER_PMI 16
339#define STATUS_FW_ERROR 17
340#define STATUS_CONF_PENDING 18
c46fbefa 341#define STATUS_MODE_PENDING 19
fee1247a
TW		 342
343
344static inline int iwl_is_ready(struct iwl_priv *priv)
345{
346 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
347 * set but EXIT_PENDING is not */
348 return test_bit(STATUS_READY, &priv->status) &&
349 test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
350 !test_bit(STATUS_EXIT_PENDING, &priv->status);
351}
352
353static inline int iwl_is_alive(struct iwl_priv *priv)
354{
355 return test_bit(STATUS_ALIVE, &priv->status);
356}
357
358static inline int iwl_is_init(struct iwl_priv *priv)
359{
360 return test_bit(STATUS_INIT, &priv->status);
361}
362
80fcc9e2
AG		 363static inline int iwl_is_rfkill_sw(struct iwl_priv *priv)
364{
365 return test_bit(STATUS_RF_KILL_SW, &priv->status);
366}
367
368static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
369{
370 return test_bit(STATUS_RF_KILL_HW, &priv->status);
371}
372
fee1247a
TW		 373static inline int iwl_is_rfkill(struct iwl_priv *priv)
374{
80fcc9e2 375 return iwl_is_rfkill_hw(priv) || iwl_is_rfkill_sw(priv);
fee1247a
TW		 376}
377
378static inline int iwl_is_ready_rf(struct iwl_priv *priv)
379{
380
381 if (iwl_is_rfkill(priv))
382 return 0;
383
384 return iwl_is_ready(priv);
385}
386
14a08a7f 387extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
49ea8596 388extern int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags);
b0692f2f 389extern int iwl_verify_ucode(struct iwl_priv *priv);
14a08a7f 390extern int iwl_send_lq_cmd(struct iwl_priv *priv,
1781a07f
EG		 391 struct iwl_link_quality_cmd *lq, u8 flags);
392extern void iwl_rx_reply_rx(struct iwl_priv *priv,
393 struct iwl_rx_mem_buffer *rxb);
394extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
395 struct iwl_rx_mem_buffer *rxb);
653fa4a0
EG		 396void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
397 struct iwl_rx_mem_buffer *rxb);
7e8c519e
TW		 398
399static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
400{
401 return priv->cfg->ops->hcmd->rxon_assoc(priv);
402}
403
3c57601d
RR		 404static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
405 struct iwl_priv *priv, enum ieee80211_band band)
406{
407 return priv->hw->wiphy->bands[band];
408}
409
82b9a121 410#endif /* __iwl_core_h__ */
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