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1/******************************************************************************
2 *
eb7ae89c 3 * Copyright(c) 2003 - 2008 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
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39/*used for rfkill*/
40#include <linux/rfkill.h>
41#include <linux/input.h>
42
5d08cd1d 43/* Hardware specific file defines the PCI IDs table for that hardware module */
bb8c093b 44extern struct pci_device_id iwl3945_hw_card_ids[];
5d08cd1d 45
6f83eaa1 46#include "iwl-csr.h"
5d08cd1d 47#include "iwl-prph.h"
6f83eaa1 48#include "iwl-3945-hw.h"
40b8ec0b 49#include "iwl-debug.h"
1125eff3 50#include "iwl-power.h"
d20b3c65 51#include "iwl-dev.h"
ab53d8af 52#include "iwl-3945-led.h"
5d08cd1d 53
a0987a8d 54/* Highest firmware API version supported */
011a0330 55#define IWL3945_UCODE_API_MAX 2
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56
57/* Lowest firmware API version supported */
58#define IWL3945_UCODE_API_MIN 1
59
60#define IWL3945_FW_PRE "iwlwifi-3945-"
61#define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
62#define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
4bf775cd 63
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64/* Default noise level to report when noise measurement is not available.
65 * This may be because we're:
66 * 1) Not associated (4965, no beacon statistics being sent to driver)
67 * 2) Scanning (noise measurement does not apply to associated channel)
68 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
69 * Use default noise value of -127 ... this is below the range of measurable
70 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
71 * Also, -127 works better than 0 when averaging frames with/without
72 * noise info (e.g. averaging might be done in app); measured dBm values are
73 * always negative ... using a negative value as the default keeps all
74 * averages within an s8's (used in some apps) range of negative values. */
75#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
76
77/* Module parameters accessible from iwl-*.c */
df878d8f 78extern struct iwl_mod_params iwl3945_mod_params;
5d08cd1d 79
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80struct iwl3945_sta_priv {
81 struct iwl3945_rs_sta *rs_sta;
82};
83
bb8c093b 84enum iwl3945_antenna {
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85 IWL_ANTENNA_DIVERSITY,
86 IWL_ANTENNA_MAIN,
87 IWL_ANTENNA_AUX
88};
89
90/*
91 * RTS threshold here is total size [2347] minus 4 FCS bytes
92 * Per spec:
93 * a value of 0 means RTS on all data/management packets
94 * a value > max MSDU size means no RTS
95 * else RTS for data/management frames where MPDU is larger
96 * than RTS value.
97 */
9ee1ba47 98#define IWL_RX_BUF_SIZE 3000U
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99#define DEFAULT_RTS_THRESHOLD 2347U
100#define MIN_RTS_THRESHOLD 0U
101#define MAX_RTS_THRESHOLD 2347U
102#define MAX_MSDU_SIZE 2304U
103#define MAX_MPDU_SIZE 2346U
104#define DEFAULT_BEACON_INTERVAL 100U
105#define DEFAULT_SHORT_RETRY_LIMIT 7U
106#define DEFAULT_LONG_RETRY_LIMIT 4U
107
d20b3c65 108int iwl3945_x2_queue_used(const struct iwl_queue *q, int i);
c54b679d 109
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110#define MAX_NUM_OF_TBS (20)
111
bc47279f 112/* One for each TFD */
bb8c093b 113struct iwl3945_tx_info {
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114 struct sk_buff *skb[MAX_NUM_OF_TBS];
115};
116
d9829a67 117#include "iwl-agn-rs.h"
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118
119#define IWL_TX_FIFO_AC0 0
120#define IWL_TX_FIFO_AC1 1
121#define IWL_TX_FIFO_AC2 2
122#define IWL_TX_FIFO_AC3 3
123#define IWL_TX_FIFO_HCCA_1 5
124#define IWL_TX_FIFO_HCCA_2 6
125#define IWL_TX_FIFO_NONE 7
126
127/* Minimum number of queues. MAX_NUM is defined in hw specific files */
128#define IWL_MIN_NUM_QUEUES 4
129
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130#define IEEE80211_DATA_LEN 2304
131#define IEEE80211_4ADDR_LEN 30
132#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
133#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
134
bb8c093b 135struct iwl3945_frame {
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136 union {
137 struct ieee80211_hdr frame;
bb8c093b 138 struct iwl3945_tx_beacon_cmd beacon;
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139 u8 raw[IEEE80211_FRAME_LEN];
140 u8 cmd[360];
141 } u;
142 struct list_head list;
143};
144
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145#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
146#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
147#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
148
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149/*
150 * RX related structures and functions
151 */
152#define RX_FREE_BUFFERS 64
153#define RX_LOW_WATERMARK 8
154
155#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
156#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
157#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
158
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159#define IWL_SUPPORTED_RATES_IE_LEN 8
160
161#define SCAN_INTERVAL 100
162
5d08cd1d 163#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
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164#define STATUS_HCMD_SYNC_ACTIVE 1 /* sync host command in progress */
165#define STATUS_INT_ENABLED 2
166#define STATUS_RF_KILL_HW 3
167#define STATUS_RF_KILL_SW 4
168#define STATUS_INIT 5
169#define STATUS_ALIVE 6
170#define STATUS_READY 7
171#define STATUS_TEMPERATURE 8
172#define STATUS_GEO_CONFIGURED 9
173#define STATUS_EXIT_PENDING 10
174#define STATUS_IN_SUSPEND 11
175#define STATUS_STATISTICS 12
176#define STATUS_SCANNING 13
177#define STATUS_SCAN_ABORTING 14
178#define STATUS_SCAN_HW 15
179#define STATUS_POWER_PMI 16
180#define STATUS_FW_ERROR 17
181#define STATUS_CONF_PENDING 18
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182
183#define MAX_TID_COUNT 9
184
185#define IWL_INVALID_RATE 0xFF
186#define IWL_INVALID_VALUE -1
187
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188#define STA_PS_STATUS_WAKE 0
189#define STA_PS_STATUS_SLEEP 1
190
bb8c093b 191struct iwl3945_ibss_seq {
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192 u8 mac[ETH_ALEN];
193 u16 seq_num;
194 u16 frag_num;
195 unsigned long packet_time;
196 struct list_head list;
197};
198
bb8c093b 199#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
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200 x->u.rx_frame.stats.payload + \
201 x->u.rx_frame.stats.phy_count))
bb8c093b 202#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
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203 IWL_RX_HDR(x)->payload + \
204 le16_to_cpu(IWL_RX_HDR(x)->len)))
205#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
206#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
207
208
209/******************************************************************************
210 *
211 * Functions implemented in iwl-base.c which are forward declared here
212 * for use by iwl-*.c
213 *
214 *****************************************************************************/
bb8c093b 215struct iwl3945_addsta_cmd;
4a8a4322 216extern int iwl3945_send_add_station(struct iwl_priv *priv,
bb8c093b 217 struct iwl3945_addsta_cmd *sta, u8 flags);
4a8a4322 218extern u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *bssid,
5d08cd1d 219 int is_ap, u8 flags);
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220extern int iwl3945_power_init_handle(struct iwl_priv *priv);
221extern int iwl3945_eeprom_init(struct iwl_priv *priv);
222extern int iwl3945_rx_queue_alloc(struct iwl_priv *priv);
223extern void iwl3945_rx_queue_reset(struct iwl_priv *priv,
cc2f362c 224 struct iwl_rx_queue *rxq);
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225extern int iwl3945_calc_db_from_ratio(int sig_ratio);
226extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
4a8a4322 227extern int iwl3945_tx_queue_init(struct iwl_priv *priv,
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228 struct iwl3945_tx_queue *txq, int count, u32 id);
229extern void iwl3945_rx_replenish(void *data);
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230extern void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl3945_tx_queue *txq);
231extern int iwl3945_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len,
5d08cd1d 232 const void *data);
4a8a4322 233extern int __must_check iwl3945_send_cmd(struct iwl_priv *priv,
c2d79b48 234 struct iwl_host_cmd *cmd);
4a8a4322 235extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
73ec1cc2 236 struct ieee80211_hdr *hdr,int left);
4a8a4322 237extern int iwl3945_rx_queue_update_write_ptr(struct iwl_priv *priv,
cc2f362c 238 struct iwl_rx_queue *q);
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239extern int iwl3945_send_statistics_request(struct iwl_priv *priv);
240extern void iwl3945_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
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241 u32 decrypt_res,
242 struct ieee80211_rx_status *stats);
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243
244/*
245 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
246 * call this... todo... fix that.
247*/
4a8a4322 248extern u8 iwl3945_sync_station(struct iwl_priv *priv, int sta_id,
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249 u16 tx_rate, u8 flags);
250
251/******************************************************************************
252 *
253 * Functions implemented in iwl-[34]*.c which are forward declared here
254 * for use by iwl-base.c
255 *
256 * NOTE: The implementation of these functions are hardware specific
257 * which is why they are in the hardware specific files (vs. iwl-base.c)
258 *
259 * Naming convention --
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260 * iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_)
261 * iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
5d08cd1d 262 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
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263 * iwl3945_bg_ <-- Called from work queue context
264 * iwl3945_mac_ <-- mac80211 callback
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265 *
266 ****************************************************************************/
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267extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
268extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
269extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
270extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
271extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
272extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
273extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
274extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
275extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
276extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
277extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
5d08cd1d 278 dma_addr_t addr, u16 len);
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279extern int iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl3945_tx_queue *txq);
280extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
281extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
bb8c093b 282 struct iwl3945_tx_queue *txq);
4a8a4322 283extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
bb8c093b 284 struct iwl3945_frame *frame, u8 rate);
c2d79b48 285void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, struct iwl_cmd *cmd,
e039fa4a 286 struct ieee80211_tx_info *info,
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287 struct ieee80211_hdr *hdr,
288 int sta_id, int tx_id);
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289extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
290extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
291extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
6100b588 292 struct iwl_rx_mem_buffer *rxb);
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293extern void iwl3945_disable_events(struct iwl_priv *priv);
294extern int iwl4965_get_temperature(const struct iwl_priv *priv);
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295
296/**
bb8c093b 297 * iwl3945_hw_find_station - Find station id for a given BSSID
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298 * @bssid: MAC address of station ID to find
299 *
300 * NOTE: This should not be hardware specific but the code has
301 * not yet been merged into a single common layer for managing the
302 * station tables.
303 */
4a8a4322 304extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
5d08cd1d 305
4a8a4322 306extern int iwl3945_hw_channel_switch(struct iwl_priv *priv, u16 channel);
5d08cd1d 307
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308/*
309 * Forward declare iwl-3945.c functions for iwl-base.c
310 */
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311extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
312extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
313extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
314extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
315extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
b481de9c 316 u16 tx_rate, u8 flags);
5d08cd1d 317
80fcc9e2 318#ifdef CONFIG_IWL3945_RFKILL
4a8a4322 319struct iwl_priv;
ebef2008 320
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321void iwl3945_rfkill_set_hw_state(struct iwl_priv *priv);
322void iwl3945_rfkill_unregister(struct iwl_priv *priv);
323int iwl3945_rfkill_init(struct iwl_priv *priv);
ebef2008 324#else
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325static inline void iwl3945_rfkill_set_hw_state(struct iwl_priv *priv) {}
326static inline void iwl3945_rfkill_unregister(struct iwl_priv *priv) {}
327static inline int iwl3945_rfkill_init(struct iwl_priv *priv) { return 0; }
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328#endif
329
4a8a4322 330static inline int iwl3945_is_associated(struct iwl_priv *priv)
5d08cd1d 331{
f2c7e521 332 return (priv->active39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
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333}
334
d20b3c65 335extern const struct iwl_channel_info *iwl3945_get_channel_info(
4a8a4322 336 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
5d08cd1d 337
4a8a4322 338extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
e6a9854b 339
4a8a4322 340/* Requires full declaration of iwl_priv before including */
5d49f498 341#include "iwl-io.h"
5d08cd1d 342
b481de9c 343#endif