Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  1 /**
  2   * This file contains definitions and data structures specific
  3   * to Marvell 802.11 NIC. It contains the Device Information
  4   * structure struct lbs_private..
  5   */
  6 #ifndef _LBS_DEV_H_
  7 #define _LBS_DEV_H_
  8 
  9 #include <linux/netdevice.h>
 10 #include <linux/wireless.h>
 11 #include <linux/ethtool.h>
 12 #include <linux/debugfs.h>
 13 
 14 #include "defs.h"
 15 #include "hostcmd.h"
 16 
 17 extern struct ethtool_ops lbs_ethtool_ops;
 18 
 19 #define MAX_BSSID_PER_CHANNEL           16
 20 
 21 #define NR_TX_QUEUE                     3
 22 
 23 /* For the extended Scan */
 24 #define MAX_EXTENDED_SCAN_BSSID_LIST    MAX_BSSID_PER_CHANNEL * \
 25                                                 MRVDRV_MAX_CHANNEL_SIZE + 1
 26 
 27 #define MAX_REGION_CHANNEL_NUM  2
 28 
 29 /** Chan-freq-TxPower mapping table*/
 30 struct chan_freq_power {
 31         /** channel Number              */
 32         u16 channel;
 33         /** frequency of this channel   */
 34         u32 freq;
 35         /** Max allowed Tx power level  */
 36         u16 maxtxpower;
 37         /** TRUE:channel unsupported;  FLASE:supported*/
 38         u8 unsupported;
 39 };
 40 
 41 /** region-band mapping table*/
 42 struct region_channel {
 43         /** TRUE if this entry is valid              */
 44         u8 valid;
 45         /** region code for US, Japan ...            */
 46         u8 region;
 47         /** band B/G/A, used for BAND_CONFIG cmd             */
 48         u8 band;
 49         /** Actual No. of elements in the array below */
 50         u8 nrcfp;
 51         /** chan-freq-txpower mapping table*/
 52         struct chan_freq_power *CFP;
 53 };
 54 
 55 struct lbs_802_11_security {
 56         u8 WPAenabled;
 57         u8 WPA2enabled;
 58         u8 wep_enabled;
 59         u8 auth_mode;
 60         u32 key_mgmt;
 61 };
 62 
 63 /** Current Basic Service Set State Structure */
 64 struct current_bss_params {
 65         /** bssid */
 66         u8 bssid[ETH_ALEN];
 67         /** ssid */
 68         u8 ssid[IW_ESSID_MAX_SIZE + 1];
 69         u8 ssid_len;
 70 
 71         /** band */
 72         u8 band;
 73         /** channel */
 74         u8 channel;
 75         /** zero-terminated array of supported data rates */
 76         u8 rates[MAX_RATES + 1];
 77 };
 78 
 79 /** sleep_params */
 80 struct sleep_params {
 81         uint16_t sp_error;
 82         uint16_t sp_offset;
 83         uint16_t sp_stabletime;
 84         uint8_t  sp_calcontrol;
 85         uint8_t  sp_extsleepclk;
 86         uint16_t sp_reserved;
 87 };
 88 
 89 /* Mesh statistics */
 90 struct lbs_mesh_stats {
 91         u32     fwd_bcast_cnt;          /* Fwd: Broadcast counter */
 92         u32     fwd_unicast_cnt;        /* Fwd: Unicast counter */
 93         u32     fwd_drop_ttl;           /* Fwd: TTL zero */
 94         u32     fwd_drop_rbt;           /* Fwd: Recently Broadcasted */
 95         u32     fwd_drop_noroute;       /* Fwd: No route to Destination */
 96         u32     fwd_drop_nobuf;         /* Fwd: Run out of internal buffers */
 97         u32     drop_blind;             /* Rx:  Dropped by blinding table */
 98         u32     tx_failed_cnt;          /* Tx:  Failed transmissions */
 99 };
100 
101 /** Private structure for the MV device */
102 struct lbs_private {
103         int mesh_open;
104         int mesh_fw_ver;
105         int infra_open;
106         int mesh_autostart_enabled;
107 
108         char name[DEV_NAME_LEN];
109 
110         void *card;
111         struct net_device *dev;
112 
113         struct net_device *mesh_dev; /* Virtual device */
114         struct net_device *rtap_net_dev;
115 
116         struct iw_statistics wstats;
117         struct lbs_mesh_stats mstats;
118         struct dentry *debugfs_dir;
119         struct dentry *debugfs_debug;
120         struct dentry *debugfs_files[6];
121 
122         struct dentry *events_dir;
123         struct dentry *debugfs_events_files[6];
124 
125         struct dentry *regs_dir;
126         struct dentry *debugfs_regs_files[6];
127 
128         u32 mac_offset;
129         u32 bbp_offset;
130         u32 rf_offset;
131 
132         /* Download sent:
133            bit0 1/0=data_sent/data_tx_done,
134            bit1 1/0=cmd_sent/cmd_tx_done,
135            all other bits reserved 0 */
136         u8 dnld_sent;
137 
138         /** thread to service interrupts */
139         struct task_struct *main_thread;
140         wait_queue_head_t waitq;
141         struct workqueue_struct *work_thread;
142 
143         struct work_struct mcast_work;
144 
145         /** Scanning */
146         struct delayed_work scan_work;
147         struct delayed_work assoc_work;
148         struct work_struct sync_channel;
149         /* remember which channel was scanned last, != 0 if currently scanning */
150         int scan_channel;
151         u8 scan_ssid[IW_ESSID_MAX_SIZE + 1];
152         u8 scan_ssid_len;
153 
154         /** Hardware access */
155         int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb);
156         void (*reset_card) (struct lbs_private *priv);
157 
158         /* Wake On LAN */
159         uint32_t wol_criteria;
160         uint8_t wol_gpio;
161         uint8_t wol_gap;
162 
163         /** Wlan adapter data structure*/
164         /** STATUS variables */
165         u32 fwrelease;
166         u32 fwcapinfo;
167 
168         struct mutex lock;
169 
170         /* TX packet ready to be sent... */
171         int tx_pending_len;             /* -1 while building packet */
172 
173         u8 tx_pending_buf[LBS_UPLD_SIZE];
174         /* protected by hard_start_xmit serialization */
175 
176         /** command-related variables */
177         u16 seqnum;
178 
179         struct cmd_ctrl_node *cmd_array;
180         /** Current command */
181         struct cmd_ctrl_node *cur_cmd;
182         int cur_cmd_retcode;
183         /** command Queues */
184         /** Free command buffers */
185         struct list_head cmdfreeq;
186         /** Pending command buffers */
187         struct list_head cmdpendingq;
188 
189         wait_queue_head_t cmd_pending;
190 
191         /* Command responses sent from the hardware to the driver */
192         u8 resp_idx;
193         u8 resp_buf[2][LBS_UPLD_SIZE];
194         u32 resp_len[2];
195 
196         /* Events sent from hardware to driver */
197         struct kfifo *event_fifo;
198 
199         /* nickname */
200         u8 nodename[16];
201 
202         /** spin locks */
203         spinlock_t driver_lock;
204 
205         /** Timers */
206         struct timer_list command_timer;
207         int nr_retries;
208         int cmd_timed_out;
209 
210         /** current ssid/bssid related parameters*/
211         struct current_bss_params curbssparams;
212 
213         uint16_t mesh_tlv;
214         u8 mesh_ssid[IW_ESSID_MAX_SIZE + 1];
215         u8 mesh_ssid_len;
216 
217         /* IW_MODE_* */
218         u8 mode;
219 
220         /* Scan results list */
221         struct list_head network_list;
222         struct list_head network_free_list;
223         struct bss_descriptor *networks;
224 
225         u16 beacon_period;
226         u8 beacon_enable;
227         u8 adhoccreate;
228 
229         /** capability Info used in Association, start, join */
230         u16 capability;
231 
232         /** MAC address information */
233         u8 current_addr[ETH_ALEN];
234         u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
235         u32 nr_of_multicastmacaddr;
236 
237         /** 802.11 statistics */
238 //      struct cmd_DS_802_11_GET_STAT wlan802_11Stat;
239 
240         uint16_t enablehwauto;
241         uint16_t ratebitmap;
242 
243         u8 txretrycount;
244 
245         /** Tx-related variables (for single packet tx) */
246         struct sk_buff *currenttxskb;
247 
248         /** NIC Operation characteristics */
249         u16 mac_control;
250         u32 connect_status;
251         u32 mesh_connect_status;
252         u16 regioncode;
253         s16 txpower_cur;
254         s16 txpower_min;
255         s16 txpower_max;
256 
257         /** POWER MANAGEMENT AND PnP SUPPORT */
258         u8 surpriseremoved;
259 
260         u16 psmode;             /* Wlan802_11PowermodeCAM=disable
261                                    Wlan802_11PowermodeMAX_PSP=enable */
262         u32 psstate;
263         char ps_supported;
264         u8 needtowakeup;
265 
266         struct assoc_request * pending_assoc_req;
267         struct assoc_request * in_progress_assoc_req;
268 
269         /** Encryption parameter */
270         struct lbs_802_11_security secinfo;
271 
272         /** WEP keys */
273         struct enc_key wep_keys[4];
274         u16 wep_tx_keyidx;
275 
276         /** WPA keys */
277         struct enc_key wpa_mcast_key;
278         struct enc_key wpa_unicast_key;
279 
280 /*
281  * In theory, the IE is limited to the IE length, 255,
282  * but in practice 64 bytes are enough.
283  */
284 #define MAX_WPA_IE_LEN 64
285 
286         /** WPA Information Elements*/
287         u8 wpa_ie[MAX_WPA_IE_LEN];
288         u8 wpa_ie_len;
289 
290         /** Requested Signal Strength*/
291         u16 SNR[MAX_TYPE_B][MAX_TYPE_AVG];
292         u16 NF[MAX_TYPE_B][MAX_TYPE_AVG];
293         u8 RSSI[MAX_TYPE_B][MAX_TYPE_AVG];
294         u8 rawSNR[DEFAULT_DATA_AVG_FACTOR];
295         u8 rawNF[DEFAULT_DATA_AVG_FACTOR];
296         u16 nextSNRNF;
297         u16 numSNRNF;
298 
299         u8 radio_on;
300 
301         /** data rate stuff */
302         u8 cur_rate;
303 
304         /** RF calibration data */
305 
306 #define MAX_REGION_CHANNEL_NUM  2
307         /** region channel data */
308         struct region_channel region_channel[MAX_REGION_CHANNEL_NUM];
309 
310         struct region_channel universal_channel[MAX_REGION_CHANNEL_NUM];
311 
312         /** 11D and Domain Regulatory Data */
313         struct lbs_802_11d_domain_reg domainreg;
314         struct parsed_region_chan_11d parsed_region_chan;
315 
316         /** FSM variable for 11d support */
317         u32 enable11d;
318 
319         /**     MISCELLANEOUS */
320         struct lbs_offset_value offsetvalue;
321 
322         u32 monitormode;
323         u8 fw_ready;
324 };
325 
326 extern struct cmd_confirm_sleep confirm_sleep;
327 
328 /**
329  *  @brief Structure used to store information for each beacon/probe response
330  */
331 struct bss_descriptor {
332         u8 bssid[ETH_ALEN];
333 
334         u8 ssid[IW_ESSID_MAX_SIZE + 1];
335         u8 ssid_len;
336 
337         u16 capability;
338         u32 rssi;
339         u32 channel;
340         u16 beaconperiod;
341         __le16 atimwindow;
342 
343         /* IW_MODE_AUTO, IW_MODE_ADHOC, IW_MODE_INFRA */
344         u8 mode;
345 
346         /* zero-terminated array of supported data rates */
347         u8 rates[MAX_RATES + 1];
348 
349         unsigned long last_scanned;
350 
351         union ieee_phy_param_set phy;
352         union ieee_ss_param_set ss;
353 
354         struct ieee_ie_country_info_full_set countryinfo;
355 
356         u8 wpa_ie[MAX_WPA_IE_LEN];
357         size_t wpa_ie_len;
358         u8 rsn_ie[MAX_WPA_IE_LEN];
359         size_t rsn_ie_len;
360 
361         u8 mesh;
362 
363         struct list_head list;
364 };
365 
366 /** Association request
367  *
368  * Encapsulates all the options that describe a specific assocation request
369  * or configuration of the wireless card's radio, mode, and security settings.
370  */
371 struct assoc_request {
372 #define ASSOC_FLAG_SSID                 1
373 #define ASSOC_FLAG_CHANNEL              2
374 #define ASSOC_FLAG_BAND                 3
375 #define ASSOC_FLAG_MODE                 4
376 #define ASSOC_FLAG_BSSID                5
377 #define ASSOC_FLAG_WEP_KEYS             6
378 #define ASSOC_FLAG_WEP_TX_KEYIDX        7
379 #define ASSOC_FLAG_WPA_MCAST_KEY        8
380 #define ASSOC_FLAG_WPA_UCAST_KEY        9
381 #define ASSOC_FLAG_SECINFO              10
382 #define ASSOC_FLAG_WPA_IE               11
383         unsigned long flags;
384 
385         u8 ssid[IW_ESSID_MAX_SIZE + 1];
386         u8 ssid_len;
387         u8 channel;
388         u8 band;
389         u8 mode;
390         u8 bssid[ETH_ALEN] __attribute__ ((aligned (2)));
391 
392         /** WEP keys */
393         struct enc_key wep_keys[4];
394         u16 wep_tx_keyidx;
395 
396         /** WPA keys */
397         struct enc_key wpa_mcast_key;
398         struct enc_key wpa_unicast_key;
399 
400         struct lbs_802_11_security secinfo;
401 
402         /** WPA Information Elements*/
403         u8 wpa_ie[MAX_WPA_IE_LEN];
404         u8 wpa_ie_len;
405 
406         /* BSS to associate with for infrastructure of Ad-Hoc join */
407         struct bss_descriptor bss;
408 };
409 
410 #endif
411 
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