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diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
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1/*
2 Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21/*
22 Module: rt2x00
23 Abstract: rt2x00 global information.
24 */
25
26#ifndef RT2X00_H
27#define RT2X00_H
28
29#include <linux/bitops.h>
30#include <linux/prefetch.h>
31#include <linux/skbuff.h>
32#include <linux/workqueue.h>
33#include <linux/firmware.h>
34
35#include <net/mac80211.h>
36
37#include "rt2x00debug.h"
38#include "rt2x00reg.h"
39#include "rt2x00ring.h"
40
41/*
42 * Module information.
43 * DRV_NAME should be set within the individual module source files.
44 */
45#define DRV_VERSION "2.0.8"
46#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
47
48/*
49 * Debug definitions.
50 * Debug output has to be enabled during compile time.
51 */
52#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
53 printk(__kernlvl "%s -> %s: %s - " __msg, \
54 wiphy_name((__dev)->hw->wiphy), __FUNCTION__, __lvl, ##__args)
55
56#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
57 printk(__kernlvl "%s -> %s: %s - " __msg, \
58 DRV_NAME, __FUNCTION__, __lvl, ##__args)
59
60#ifdef CONFIG_RT2X00_DEBUG
61#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
62 DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
63#else
64#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
65 do { } while (0)
66#endif /* CONFIG_RT2X00_DEBUG */
67
68/*
69 * Various debug levels.
70 * The debug levels PANIC and ERROR both indicate serious problems,
71 * for this reason they should never be ignored.
72 * The special ERROR_PROBE message is for messages that are generated
73 * when the rt2x00_dev is not yet initialized.
74 */
75#define PANIC(__dev, __msg, __args...) \
76 DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
77#define ERROR(__dev, __msg, __args...) \
78 DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
79#define ERROR_PROBE(__msg, __args...) \
80 DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
81#define WARNING(__dev, __msg, __args...) \
82 DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
83#define NOTICE(__dev, __msg, __args...) \
84 DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
85#define INFO(__dev, __msg, __args...) \
86 DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
87#define DEBUG(__dev, __msg, __args...) \
88 DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
89#define EEPROM(__dev, __msg, __args...) \
90 DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
91
92/*
93 * Ring sizes.
94 * Ralink PCI devices demand the Frame size to be a multiple of 128 bytes.
95 * DATA_FRAME_SIZE is used for TX, RX, ATIM and PRIO rings.
96 * MGMT_FRAME_SIZE is used for the BEACON ring.
97 */
98#define DATA_FRAME_SIZE 2432
99#define MGMT_FRAME_SIZE 256
100
101/*
102 * Number of entries in a packet ring.
103 * PCI devices only need 1 Beacon entry,
104 * but USB devices require a second because they
105 * have to send a Guardian byte first.
106 */
107#define RX_ENTRIES 12
108#define TX_ENTRIES 12
109#define ATIM_ENTRIES 1
110#define BEACON_ENTRIES 2
111
112/*
113 * Standard timing and size defines.
114 * These values should follow the ieee80211 specifications.
115 */
116#define ACK_SIZE 14
117#define IEEE80211_HEADER 24
118#define PLCP 48
119#define BEACON 100
120#define PREAMBLE 144
121#define SHORT_PREAMBLE 72
122#define SLOT_TIME 20
123#define SHORT_SLOT_TIME 9
124#define SIFS 10
125#define PIFS ( SIFS + SLOT_TIME )
126#define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
127#define DIFS ( PIFS + SLOT_TIME )
128#define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
129#define EIFS ( SIFS + (8 * (IEEE80211_HEADER + ACK_SIZE)) )
130
131/*
132 * IEEE802.11 header defines
133 */
134static inline int is_rts_frame(u16 fc)
135{
136 return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
137 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS));
138}
139
140static inline int is_cts_frame(u16 fc)
141{
142 return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
143 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS));
144}
145
146static inline int is_probe_resp(u16 fc)
147{
148 return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
149 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP));
150}
151
152/*
153 * Chipset identification
154 * The chipset on the device is composed of a RT and RF chip.
155 * The chipset combination is important for determining device capabilities.
156 */
157struct rt2x00_chip {
158 u16 rt;
159#define RT2460 0x0101
160#define RT2560 0x0201
161#define RT2570 0x1201
162#define RT2561 0x0301
163#define RT2561s 0x0302
164#define RT2661 0x0401
165#define RT2571 0x1300
166
167 u16 rf;
168 u32 rev;
169};
170
171/*
172 * RF register values that belong to a particular channel.
173 */
174struct rf_channel {
175 int channel;
176 u32 rf1;
177 u32 rf2;
178 u32 rf3;
179 u32 rf4;
180};
181
182/*
183 * To optimize the quality of the link we need to store
184 * the quality of received frames and periodically
185 * optimize the link.
186 */
187struct link {
188 /*
189 * Link tuner counter
190 * The number of times the link has been tuned
191 * since the radio has been switched on.
192 */
193 u32 count;
194
195 /*
196 * Statistics required for Link tuning.
197 * For the average RSSI value we use the "Walking average" approach.
198 * When adding RSSI to the average value the following calculation
199 * is needed:
200 *
201 * avg_rssi = ((avg_rssi * 7) + rssi) / 8;
202 *
203 * The advantage of this approach is that we only need 1 variable
204 * to store the average in (No need for a count and a total).
205 * But more importantly, normal average values will over time
206 * move less and less towards newly added values this results
207 * that with link tuning, the device can have a very good RSSI
208 * for a few minutes but when the device is moved away from the AP
209 * the average will not decrease fast enough to compensate.
210 * The walking average compensates this and will move towards
211 * the new values correctly allowing a effective link tuning.
212 */
213 int avg_rssi;
214 int vgc_level;
215 int false_cca;
216
217 /*
218 * Statistics required for Signal quality calculation.
219 * For calculating the Signal quality we have to determine
220 * the total number of success and failed RX and TX frames.
221 * After that we also use the average RSSI value to help
222 * determining the signal quality.
223 * For the calculation we will use the following algorithm:
224 *
225 * rssi_percentage = (avg_rssi * 100) / rssi_offset
226 * rx_percentage = (rx_success * 100) / rx_total
227 * tx_percentage = (tx_success * 100) / tx_total
228 * avg_signal = ((WEIGHT_RSSI * avg_rssi) +
229 * (WEIGHT_TX * tx_percentage) +
230 * (WEIGHT_RX * rx_percentage)) / 100
231 *
232 * This value should then be checked to not be greated then 100.
233 */
234 int rx_percentage;
235 int rx_success;
236 int rx_failed;
237 int tx_percentage;
238 int tx_success;
239 int tx_failed;
240#define WEIGHT_RSSI 20
241#define WEIGHT_RX 40
242#define WEIGHT_TX 40
243
244 /*
245 * Work structure for scheduling periodic link tuning.
246 */
247 struct delayed_work work;
248};
249
250/*
251 * Clear all counters inside the link structure.
252 * This can be easiest achieved by memsetting everything
253 * except for the work structure at the end.
254 */
255static inline void rt2x00_clear_link(struct link *link)
256{
257 memset(link, 0x00, sizeof(*link) - sizeof(link->work));
258 link->rx_percentage = 50;
259 link->tx_percentage = 50;
260}
261
262/*
263 * Update the rssi using the walking average approach.
264 */
265static inline void rt2x00_update_link_rssi(struct link *link, int rssi)
266{
267 if (!link->avg_rssi)
268 link->avg_rssi = rssi;
269 else
270 link->avg_rssi = ((link->avg_rssi * 7) + rssi) / 8;
271}
272
273/*
274 * When the avg_rssi is unset or no frames have been received),
275 * we need to return the default value which needs to be less
276 * than -80 so the device will select the maximum sensitivity.
277 */
278static inline int rt2x00_get_link_rssi(struct link *link)
279{
280 return (link->avg_rssi && link->rx_success) ? link->avg_rssi : -128;
281}
282
283/*
284 * Interface structure
285 * Configuration details about the current interface.
286 */
287struct interface {
288 /*
289 * Interface identification. The value is assigned
290 * to us by the 80211 stack, and is used to request
291 * new beacons.
292 */
293 int id;
294
295 /*
296 * Current working type (IEEE80211_IF_TYPE_*).
297 * This excludes the type IEEE80211_IF_TYPE_MNTR
298 * since that is counted seperately in the monitor_count
299 * field.
300 * When set to INVALID_INTERFACE, no interface is configured.
301 */
302 int type;
303#define INVALID_INTERFACE IEEE80211_IF_TYPE_MGMT
304
305 /*
306 * MAC of the device.
307 */
308 u8 mac[ETH_ALEN];
309
310 /*
311 * BBSID of the AP to associate with.
312 */
313 u8 bssid[ETH_ALEN];
314
315 /*
316 * Store the packet filter mode for the current interface.
317 * monitor mode always disabled filtering. But in such
318 * cases we still need to store the value here in case
319 * the monitor mode interfaces are removed, while a
320 * non-monitor mode interface remains.
321 */
322 unsigned short filter;
323
324 /*
325 * Monitor mode count, the number of interfaces
326 * in monitor mode that that have been added.
327 */
328 unsigned short monitor_count;
329};
330
331static inline int is_interface_present(struct interface *intf)
332{
333 return !!intf->id;
334}
335
336static inline int is_monitor_present(struct interface *intf)
337{
338 return !!intf->monitor_count;
339}
340
341/*
342 * Details about the supported modes, rates and channels
343 * of a particular chipset. This is used by rt2x00lib
344 * to build the ieee80211_hw_mode array for mac80211.
345 */
346struct hw_mode_spec {
347 /*
348 * Number of modes, rates and channels.
349 */
350 int num_modes;
351 int num_rates;
352 int num_channels;
353
354 /*
355 * txpower values.
356 */
357 const u8 *tx_power_a;
358 const u8 *tx_power_bg;
359 u8 tx_power_default;
360
361 /*
362 * Device/chipset specific value.
363 */
364 const struct rf_channel *channels;
365};
366
367/*
368 * rt2x00lib callback functions.
369 */
370struct rt2x00lib_ops {
371 /*
372 * Interrupt handlers.
373 */
374 irq_handler_t irq_handler;
375
376 /*
377 * Device init handlers.
378 */
379 int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
380 char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
381 int (*load_firmware) (struct rt2x00_dev *rt2x00dev, void *data,
382 const size_t len);
383
384 /*
385 * Device initialization/deinitialization handlers.
386 */
387 int (*initialize) (struct rt2x00_dev *rt2x00dev);
388 void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
389
390 /*
391 * Radio control handlers.
392 */
393 int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
394 enum dev_state state);
395 int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
396 void (*link_stats) (struct rt2x00_dev *rt2x00dev);
397 void (*reset_tuner) (struct rt2x00_dev *rt2x00dev);
398 void (*link_tuner) (struct rt2x00_dev *rt2x00dev);
399
400 /*
401 * TX control handlers
402 */
403 void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
404 struct data_desc *txd,
405 struct data_entry_desc *desc,
406 struct ieee80211_hdr *ieee80211hdr,
407 unsigned int length,
408 struct ieee80211_tx_control *control);
409 int (*write_tx_data) (struct rt2x00_dev *rt2x00dev,
410 struct data_ring *ring, struct sk_buff *skb,
411 struct ieee80211_tx_control *control);
412 void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
413 unsigned int queue);
414
415 /*
416 * RX control handlers
417 */
418 int (*fill_rxdone) (struct data_entry *entry,
419 int *signal, int *rssi, int *ofdm, int *size);
420
421 /*
422 * Configuration handlers.
423 */
424 void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, u8 *mac);
425 void (*config_bssid) (struct rt2x00_dev *rt2x00dev, u8 *bssid);
426 void (*config_packet_filter) (struct rt2x00_dev *rt2x00dev,
427 const unsigned int filter);
428 void (*config_type) (struct rt2x00_dev *rt2x00dev, const int type);
429 void (*config) (struct rt2x00_dev *rt2x00dev, const unsigned int flags,
430 struct ieee80211_conf *conf);
431#define CONFIG_UPDATE_PHYMODE ( 1 << 1 )
432#define CONFIG_UPDATE_CHANNEL ( 1 << 2 )
433#define CONFIG_UPDATE_TXPOWER ( 1 << 3 )
434#define CONFIG_UPDATE_ANTENNA ( 1 << 4 )
435#define CONFIG_UPDATE_SLOT_TIME ( 1 << 5 )
436#define CONFIG_UPDATE_BEACON_INT ( 1 << 6 )
437#define CONFIG_UPDATE_ALL 0xffff
438};
439
440/*
441 * rt2x00 driver callback operation structure.
442 */
443struct rt2x00_ops {
444 const char *name;
445 const unsigned int rxd_size;
446 const unsigned int txd_size;
447 const unsigned int eeprom_size;
448 const unsigned int rf_size;
449 const struct rt2x00lib_ops *lib;
450 const struct ieee80211_ops *hw;
451#ifdef CONFIG_RT2X00_LIB_DEBUGFS
452 const struct rt2x00debug *debugfs;
453#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
454};
455
456/*
457 * rt2x00 device structure.
458 */
459struct rt2x00_dev {
460 /*
461 * Device structure.
462 * The structure stored in here depends on the
463 * system bus (PCI or USB).
464 * When accessing this variable, the rt2x00dev_{pci,usb}
465 * macro's should be used for correct typecasting.
466 */
467 void *dev;
468#define rt2x00dev_pci(__dev) ( (struct pci_dev*)(__dev)->dev )
469#define rt2x00dev_usb(__dev) ( (struct usb_interface*)(__dev)->dev )
470
471 /*
472 * Callback functions.
473 */
474 const struct rt2x00_ops *ops;
475
476 /*
477 * IEEE80211 control structure.
478 */
479 struct ieee80211_hw *hw;
480 struct ieee80211_hw_mode *hwmodes;
481 unsigned int curr_hwmode;
482#define HWMODE_B 0
483#define HWMODE_G 1
484#define HWMODE_A 2
485
486 /*
487 * rfkill structure for RF state switching support.
488 * This will only be compiled in when required.
489 */
490#ifdef CONFIG_RT2X00_LIB_RFKILL
491 struct rfkill *rfkill;
492 struct input_polled_dev *poll_dev;
493#endif /* CONFIG_RT2X00_LIB_RFKILL */
494
495 /*
496 * If enabled, the debugfs interface structures
497 * required for deregistration of debugfs.
498 */
499#ifdef CONFIG_RT2X00_LIB_DEBUGFS
500 const struct rt2x00debug_intf *debugfs_intf;
501#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
502
503 /*
504 * Device flags.
505 * In these flags the current status and some
506 * of the device capabilities are stored.
507 */
508 unsigned long flags;
509#define DEVICE_ENABLED_RADIO 1
510#define DEVICE_ENABLED_RADIO_HW 2
511#define DEVICE_INITIALIZED 3
512#define DEVICE_INITIALIZED_HW 4
513#define REQUIRE_FIRMWARE 5
514#define PACKET_FILTER_SCHEDULED 6
515#define PACKET_FILTER_PENDING 7
516#define INTERFACE_RESUME 8
517#define INTERFACE_ENABLED 9
518#define INTERFACE_ENABLED_MONITOR 10
519#define REQUIRE_BEACON_RING 11
520#define DEVICE_SUPPORT_HW_BUTTON 12
521#define CONFIG_FRAME_TYPE 13
522#define CONFIG_RF_SEQUENCE 14
523/* Hole: Add new Flag here */
524#define CONFIG_EXTERNAL_LNA_A 16
525#define CONFIG_EXTERNAL_LNA_BG 17
526#define CONFIG_DOUBLE_ANTENNA 18
527#define CONFIG_DISABLE_LINK_TUNING 19
528
529 /*
530 * Chipset identification.
531 */
532 struct rt2x00_chip chip;
533
534 /*
535 * hw capability specifications.
536 */
537 struct hw_mode_spec spec;
538
539 /*
540 * Register pointers
541 * csr_addr: Base register address. (PCI)
542 * csr_cache: CSR cache for usb_control_msg. (USB)
543 */
544 void __iomem *csr_addr;
545 void *csr_cache;
546
547 /*
548 * Interface configuration.
549 */
550 struct interface interface;
551
552 /*
553 * Link quality
554 */
555 struct link link;
556
557 /*
558 * EEPROM data.
559 */
560 __le16 *eeprom;
561
562 /*
563 * Active RF register values.
564 * These are stored here so we don't need
565 * to read the rf registers and can directly
566 * use this value instead.
567 * This field should be accessed by using
568 * rt2x00_rf_read() and rt2x00_rf_write().
569 */
570 u32 *rf;
571
572 /*
573 * Current TX power value.
574 */
575 u16 tx_power;
576
577 /*
578 * LED register (for rt61pci & rt73usb).
579 */
580 u16 led_reg;
581
582 /*
583 * Led mode (LED_MODE_*)
584 */
585 u8 led_mode;
586
587 /*
588 * Rssi <-> Dbm offset
589 */
590 u8 rssi_offset;
591
592 /*
593 * Frequency offset (for rt61pci & rt73usb).
594 */
595 u8 freq_offset;
596
597 /*
598 * Low level statistics which will have
599 * to be kept up to date while device is running.
600 */
601 struct ieee80211_low_level_stats low_level_stats;
602
603 /*
604 * RX configuration information.
605 */
606 struct ieee80211_rx_status rx_status;
607
608 /*
609 * Beacon scheduled work.
610 */
611 struct work_struct beacon_work;
612
613 /*
614 * Data ring arrays for RX, TX and Beacon.
615 * The Beacon array also contains the Atim ring
616 * if that is supported by the device.
617 */
618 int data_rings;
619 struct data_ring *rx;
620 struct data_ring *tx;
621 struct data_ring *bcn;
622
623 /*
624 * Firmware image.
625 */
626 const struct firmware *fw;
627};
628
629/*
630 * For-each loop for the ring array.
631 * All rings have been allocated as a single array,
632 * this means we can create a very simply loop macro
633 * that is capable of looping through all rings.
634 * ring_end(), txring_end() and ring_loop() are helper macro's which
635 * should not be used directly. Instead the following should be used:
636 * ring_for_each() - Loops through all rings (RX, TX, Beacon & Atim)
637 * txring_for_each() - Loops through TX data rings (TX only)
638 * txringall_for_each() - Loops through all TX rings (TX, Beacon & Atim)
639 */
640#define ring_end(__dev) \
641 &(__dev)->rx[(__dev)->data_rings]
642
643#define txring_end(__dev) \
644 &(__dev)->tx[(__dev)->hw->queues]
645
646#define ring_loop(__entry, __start, __end) \
647 for ((__entry) = (__start); \
648 prefetch(&(__entry)[1]), (__entry) != (__end); \
649 (__entry) = &(__entry)[1])
650
651#define ring_for_each(__dev, __entry) \
652 ring_loop(__entry, (__dev)->rx, ring_end(__dev))
653
654#define txring_for_each(__dev, __entry) \
655 ring_loop(__entry, (__dev)->tx, txring_end(__dev))
656
657#define txringall_for_each(__dev, __entry) \
658 ring_loop(__entry, (__dev)->tx, ring_end(__dev))
659
660/*
661 * Generic RF access.
662 * The RF is being accessed by word index.
663 */
664static inline void rt2x00_rf_read(const struct rt2x00_dev *rt2x00dev,
665 const unsigned int word, u32 *data)
666{
667 *data = rt2x00dev->rf[word];
668}
669
670static inline void rt2x00_rf_write(const struct rt2x00_dev *rt2x00dev,
671 const unsigned int word, u32 data)
672{
673 rt2x00dev->rf[word] = data;
674}
675
676/*
677 * Generic EEPROM access.
678 * The EEPROM is being accessed by word index.
679 */
680static inline void *rt2x00_eeprom_addr(const struct rt2x00_dev *rt2x00dev,
681 const unsigned int word)
682{
683 return (void *)&rt2x00dev->eeprom[word];
684}
685
686static inline void rt2x00_eeprom_read(const struct rt2x00_dev *rt2x00dev,
687 const unsigned int word, u16 *data)
688{
689 *data = le16_to_cpu(rt2x00dev->eeprom[word]);
690}
691
692static inline void rt2x00_eeprom_write(const struct rt2x00_dev *rt2x00dev,
693 const unsigned int word, u16 data)
694{
695 rt2x00dev->eeprom[word] = cpu_to_le16(data);
696}
697
698/*
699 * Chipset handlers
700 */
701static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
702 const u16 rt, const u16 rf, const u32 rev)
703{
704 INFO(rt2x00dev,
705 "Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n",
706 rt, rf, rev);
707
708 rt2x00dev->chip.rt = rt;
709 rt2x00dev->chip.rf = rf;
710 rt2x00dev->chip.rev = rev;
711}
712
713static inline char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip)
714{
715 return (chipset->rt == chip);
716}
717
718static inline char rt2x00_rf(const struct rt2x00_chip *chipset, const u16 chip)
719{
720 return (chipset->rf == chip);
721}
722
723static inline u16 rt2x00_get_rev(const struct rt2x00_chip *chipset)
724{
725 return chipset->rev;
726}
727
728static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset, const u32 mask)
729{
730 return chipset->rev & mask;
731}
732
733/*
734 * Duration calculations
735 * The rate variable passed is: 100kbs.
736 * To convert from bytes to bits we multiply size with 8,
737 * then the size is multiplied with 10 to make the
738 * real rate -> rate argument correction.
739 */
740static inline u16 get_duration(const unsigned int size, const u8 rate)
741{
742 return ((size * 8 * 10) / rate);
743}
744
745static inline u16 get_duration_res(const unsigned int size, const u8 rate)
746{
747 return ((size * 8 * 10) % rate);
748}
749
750/*
751 * Library functions.
752 */
753struct data_ring *rt2x00lib_get_ring(struct rt2x00_dev *rt2x00dev,
754 const unsigned int queue);
755
756/*
757 * Interrupt context handlers.
758 */
759void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
760void rt2x00lib_txdone(struct data_entry *entry,
761 const int status, const int retry);
762void rt2x00lib_rxdone(struct data_entry *entry, struct sk_buff *skb,
763 const int signal, const int rssi, const int ofdm);
764
765/*
766 * TX descriptor initializer
767 */
768void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
769 struct data_desc *txd,
770 struct ieee80211_hdr *ieee80211hdr,
771 unsigned int length,
772 struct ieee80211_tx_control *control);
773
774/*
775 * mac80211 handlers.
776 */
777int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
778 struct ieee80211_tx_control *control);
779int rt2x00mac_start(struct ieee80211_hw *hw);
780void rt2x00mac_stop(struct ieee80211_hw *hw);
781int rt2x00mac_add_interface(struct ieee80211_hw *hw,
782 struct ieee80211_if_init_conf *conf);
783void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
784 struct ieee80211_if_init_conf *conf);
785int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
786int rt2x00mac_config_interface(struct ieee80211_hw *hw, int if_id,
787 struct ieee80211_if_conf *conf);
788void rt2x00mac_set_multicast_list(struct ieee80211_hw *hw,
789 unsigned short flags, int mc_count);
790int rt2x00mac_get_stats(struct ieee80211_hw *hw,
791 struct ieee80211_low_level_stats *stats);
792int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw,
793 struct ieee80211_tx_queue_stats *stats);
794int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue,
795 const struct ieee80211_tx_queue_params *params);
796
797/*
798 * Driver allocation handlers.
799 */
800int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
801void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
802#ifdef CONFIG_PM
803int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
804int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
805#endif /* CONFIG_PM */
806
807#endif /* RT2X00_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 08:06:24 -0500