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iwlwifi: manage IBSS station properly
[net-next-2.6.git] / drivers / net / wireless / iwlwifi / iwl-3945.h
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1/******************************************************************************
2 *
1f447808 3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
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4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
759ef89f 22 * Intel Linux Wireless <ilw@linux.intel.com>
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23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
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26/*
27 * Please use this file (iwl-3945.h) for driver implementation definitions.
28 * Please use iwl-3945-commands.h for uCode API definitions.
29 * Please use iwl-3945-hw.h for hardware-related definitions.
30 */
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31
32#ifndef __iwl_3945_h__
33#define __iwl_3945_h__
34
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35#include <linux/pci.h> /* for struct pci_device_id */
36#include <linux/kernel.h>
37#include <net/ieee80211_radiotap.h>
38
5d08cd1d 39/* Hardware specific file defines the PCI IDs table for that hardware module */
a3aa1884 40extern const struct pci_device_id iwl3945_hw_card_ids[];
5d08cd1d 41
6f83eaa1 42#include "iwl-csr.h"
5d08cd1d 43#include "iwl-prph.h"
dbb6654c 44#include "iwl-fh.h"
6f83eaa1 45#include "iwl-3945-hw.h"
40b8ec0b 46#include "iwl-debug.h"
1125eff3 47#include "iwl-power.h"
d20b3c65 48#include "iwl-dev.h"
e932a609 49#include "iwl-led.h"
5d08cd1d 50
a0987a8d 51/* Highest firmware API version supported */
011a0330 52#define IWL3945_UCODE_API_MAX 2
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53
54/* Lowest firmware API version supported */
55#define IWL3945_UCODE_API_MIN 1
56
57#define IWL3945_FW_PRE "iwlwifi-3945-"
58#define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
59#define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
4bf775cd 60
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61/* Default noise level to report when noise measurement is not available.
62 * This may be because we're:
63 * 1) Not associated (4965, no beacon statistics being sent to driver)
64 * 2) Scanning (noise measurement does not apply to associated channel)
65 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
66 * Use default noise value of -127 ... this is below the range of measurable
67 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
68 * Also, -127 works better than 0 when averaging frames with/without
69 * noise info (e.g. averaging might be done in app); measured dBm values are
70 * always negative ... using a negative value as the default keeps all
71 * averages within an s8's (used in some apps) range of negative values. */
72#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
73
74/* Module parameters accessible from iwl-*.c */
df878d8f 75extern struct iwl_mod_params iwl3945_mod_params;
5d08cd1d 76
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77struct iwl3945_rate_scale_data {
78 u64 data;
79 s32 success_counter;
80 s32 success_ratio;
81 s32 counter;
82 s32 average_tpt;
83 unsigned long stamp;
84};
85
86struct iwl3945_rs_sta {
87 spinlock_t lock;
88 struct iwl_priv *priv;
89 s32 *expected_tpt;
90 unsigned long last_partial_flush;
91 unsigned long last_flush;
92 u32 flush_time;
93 u32 last_tx_packets;
94 u32 tx_packets;
95 u8 tgg;
96 u8 flush_pending;
97 u8 start_rate;
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98 struct timer_list rate_scale_flush;
99 struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
100#ifdef CONFIG_MAC80211_DEBUGFS
101 struct dentry *rs_sta_dbgfs_stats_table_file;
102#endif
103
104 /* used to be in sta_info */
105 int last_txrate_idx;
106};
107
108
4b7679a5 109struct iwl3945_sta_priv {
62a94926 110 struct iwl3945_rs_sta rs_sta;
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111};
112
bb8c093b 113enum iwl3945_antenna {
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114 IWL_ANTENNA_DIVERSITY,
115 IWL_ANTENNA_MAIN,
116 IWL_ANTENNA_AUX
117};
118
119/*
120 * RTS threshold here is total size [2347] minus 4 FCS bytes
121 * Per spec:
122 * a value of 0 means RTS on all data/management packets
123 * a value > max MSDU size means no RTS
124 * else RTS for data/management frames where MPDU is larger
125 * than RTS value.
126 */
127#define DEFAULT_RTS_THRESHOLD 2347U
128#define MIN_RTS_THRESHOLD 0U
129#define MAX_RTS_THRESHOLD 2347U
130#define MAX_MSDU_SIZE 2304U
131#define MAX_MPDU_SIZE 2346U
132#define DEFAULT_BEACON_INTERVAL 100U
133#define DEFAULT_SHORT_RETRY_LIMIT 7U
134#define DEFAULT_LONG_RETRY_LIMIT 4U
135
d9829a67 136#include "iwl-agn-rs.h"
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137
138#define IWL_TX_FIFO_AC0 0
139#define IWL_TX_FIFO_AC1 1
140#define IWL_TX_FIFO_AC2 2
141#define IWL_TX_FIFO_AC3 3
142#define IWL_TX_FIFO_HCCA_1 5
143#define IWL_TX_FIFO_HCCA_2 6
144#define IWL_TX_FIFO_NONE 7
145
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146#define IEEE80211_DATA_LEN 2304
147#define IEEE80211_4ADDR_LEN 30
148#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
149#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
150
bb8c093b 151struct iwl3945_frame {
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152 union {
153 struct ieee80211_hdr frame;
bb8c093b 154 struct iwl3945_tx_beacon_cmd beacon;
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155 u8 raw[IEEE80211_FRAME_LEN];
156 u8 cmd[360];
157 } u;
158 struct list_head list;
159};
160
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161#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
162#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
163#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
164
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165#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
166#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
167#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
168
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169#define IWL_SUPPORTED_RATES_IE_LEN 8
170
171#define SCAN_INTERVAL 100
172
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173#define MAX_TID_COUNT 9
174
175#define IWL_INVALID_RATE 0xFF
176#define IWL_INVALID_VALUE -1
177
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178#define STA_PS_STATUS_WAKE 0
179#define STA_PS_STATUS_SLEEP 1
180
bb8c093b 181struct iwl3945_ibss_seq {
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182 u8 mac[ETH_ALEN];
183 u16 seq_num;
184 u16 frag_num;
185 unsigned long packet_time;
186 struct list_head list;
187};
188
bb8c093b 189#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
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190 x->u.rx_frame.stats.payload + \
191 x->u.rx_frame.stats.phy_count))
bb8c093b 192#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
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193 IWL_RX_HDR(x)->payload + \
194 le16_to_cpu(IWL_RX_HDR(x)->len)))
195#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
196#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
197
198
199/******************************************************************************
200 *
201 * Functions implemented in iwl-base.c which are forward declared here
202 * for use by iwl-*.c
203 *
204 *****************************************************************************/
bb8c093b 205extern int iwl3945_calc_db_from_ratio(int sig_ratio);
bb8c093b 206extern void iwl3945_rx_replenish(void *data);
df833b1d 207extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
4a8a4322 208extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
73ec1cc2 209 struct ieee80211_hdr *hdr,int left);
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210extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
211 char **buf, bool display);
b7a79404 212extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
5d08cd1d 213
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214/******************************************************************************
215 *
216 * Functions implemented in iwl-[34]*.c which are forward declared here
217 * for use by iwl-base.c
218 *
219 * NOTE: The implementation of these functions are hardware specific
220 * which is why they are in the hardware specific files (vs. iwl-base.c)
221 *
222 * Naming convention --
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223 * iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_)
224 * iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
5d08cd1d 225 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
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226 * iwl3945_bg_ <-- Called from work queue context
227 * iwl3945_mac_ <-- mac80211 callback
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228 *
229 ****************************************************************************/
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230extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
231extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
232extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
233extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
234extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
235extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
236extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
237extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
238extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
239extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
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240extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
241 struct iwl_tx_queue *txq,
242 dma_addr_t addr, u16 len,
243 u8 reset, u8 pad);
244extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv,
245 struct iwl_tx_queue *txq);
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246extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
247extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
188cf6c7 248 struct iwl_tx_queue *txq);
4a8a4322 249extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
bb8c093b 250 struct iwl3945_frame *frame, u8 rate);
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251void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
252 struct iwl_device_cmd *cmd,
253 struct ieee80211_tx_info *info,
254 struct ieee80211_hdr *hdr,
255 int sta_id, int tx_id);
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256extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
257extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
258extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
6100b588 259 struct iwl_rx_mem_buffer *rxb);
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260void iwl3945_reply_statistics(struct iwl_priv *priv,
261 struct iwl_rx_mem_buffer *rxb);
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262extern void iwl3945_disable_events(struct iwl_priv *priv);
263extern int iwl4965_get_temperature(const struct iwl_priv *priv);
5bbe233b 264extern void iwl3945_post_associate(struct iwl_priv *priv);
60690a6a 265extern void iwl3945_config_ap(struct iwl_priv *priv);
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266
267/**
bb8c093b 268 * iwl3945_hw_find_station - Find station id for a given BSSID
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269 * @bssid: MAC address of station ID to find
270 *
271 * NOTE: This should not be hardware specific but the code has
272 * not yet been merged into a single common layer for managing the
273 * station tables.
274 */
4a8a4322 275extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
5d08cd1d 276
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277/*
278 * Forward declare iwl-3945.c functions for iwl-base.c
279 */
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280extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
281extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
282extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
283extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
5d08cd1d 284
d20b3c65 285extern const struct iwl_channel_info *iwl3945_get_channel_info(
4a8a4322 286 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
5d08cd1d 287
4a8a4322 288extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
e6a9854b 289
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290/* scanning */
291void iwl3945_request_scan(struct iwl_priv *priv);
292
4a8a4322 293/* Requires full declaration of iwl_priv before including */
5d49f498 294#include "iwl-io.h"
5d08cd1d 295
b481de9c 296#endif