2 Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
3 Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
4 Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
5 <http://rt2x00.serialmonkey.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the
19 Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 Abstract: rt2x00 global information.
31 #include <linux/bitops.h>
32 #include <linux/skbuff.h>
33 #include <linux/workqueue.h>
34 #include <linux/firmware.h>
35 #include <linux/leds.h>
36 #include <linux/mutex.h>
37 #include <linux/etherdevice.h>
38 #include <linux/input-polldev.h>
40 #include <net/mac80211.h>
42 #include "rt2x00debug.h"
43 #include "rt2x00dump.h"
44 #include "rt2x00leds.h"
45 #include "rt2x00reg.h"
46 #include "rt2x00queue.h"
51 #define DRV_VERSION "2.3.0"
52 #define DRV_PROJECT "http://rt2x00.serialmonkey.com"
56 * Debug output has to be enabled during compile time.
58 #define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
59 printk(__kernlvl "%s -> %s: %s - " __msg, \
60 wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args)
62 #define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
63 printk(__kernlvl "%s -> %s: %s - " __msg, \
64 KBUILD_MODNAME, __func__, __lvl, ##__args)
66 #ifdef CONFIG_RT2X00_DEBUG
67 #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
68 DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
70 #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
72 #endif /* CONFIG_RT2X00_DEBUG */
75 * Various debug levels.
76 * The debug levels PANIC and ERROR both indicate serious problems,
77 * for this reason they should never be ignored.
78 * The special ERROR_PROBE message is for messages that are generated
79 * when the rt2x00_dev is not yet initialized.
81 #define PANIC(__dev, __msg, __args...) \
82 DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
83 #define ERROR(__dev, __msg, __args...) \
84 DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
85 #define ERROR_PROBE(__msg, __args...) \
86 DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
87 #define WARNING(__dev, __msg, __args...) \
88 DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
89 #define NOTICE(__dev, __msg, __args...) \
90 DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
91 #define INFO(__dev, __msg, __args...) \
92 DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
93 #define DEBUG(__dev, __msg, __args...) \
94 DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
95 #define EEPROM(__dev, __msg, __args...) \
96 DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
99 * Duration calculations
100 * The rate variable passed is: 100kbs.
101 * To convert from bytes to bits we multiply size with 8,
102 * then the size is multiplied with 10 to make the
103 * real rate -> rate argument correction.
105 #define GET_DURATION(__size, __rate) (((__size) * 8 * 10) / (__rate))
106 #define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
109 * Determine the number of L2 padding bytes required between the header and
112 #define L2PAD_SIZE(__hdrlen) (-(__hdrlen) & 3)
115 * Determine the alignment requirement,
116 * to make sure the 802.11 payload is padded to a 4-byte boundrary
117 * we must determine the address of the payload and calculate the
118 * amount of bytes needed to move the data.
120 #define ALIGN_SIZE(__skb, __header) \
121 ( ((unsigned long)((__skb)->data + (__header))) & 3 )
124 * Constants for extra TX headroom for alignment purposes.
126 #define RT2X00_ALIGN_SIZE 4 /* Only whole frame needs alignment */
127 #define RT2X00_L2PAD_SIZE 8 /* Both header & payload need alignment */
130 * Standard timing and size defines.
131 * These values should follow the ieee80211 specifications.
134 #define IEEE80211_HEADER 24
138 #define SHORT_PREAMBLE 72
140 #define SHORT_SLOT_TIME 9
142 #define PIFS ( SIFS + SLOT_TIME )
143 #define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
144 #define DIFS ( PIFS + SLOT_TIME )
145 #define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
146 #define EIFS ( SIFS + DIFS + \
147 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
148 #define SHORT_EIFS ( SIFS + SHORT_DIFS + \
149 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
152 * Structure for average calculation
153 * The avg field contains the actual average value,
154 * but avg_weight is internally used during calculations
155 * to prevent rounding errors.
162 enum rt2x00_chip_intf {
163 RT2X00_CHIP_INTF_PCI,
164 RT2X00_CHIP_INTF_PCIE,
165 RT2X00_CHIP_INTF_USB,
166 RT2X00_CHIP_INTF_SOC,
170 * Chipset identification
171 * The chipset on the device is composed of a RT and RF chip.
172 * The chipset combination is important for determining device capabilities.
176 #define RT2460 0x2460
177 #define RT2560 0x2560
178 #define RT2570 0x2570
179 #define RT2661 0x2661
180 #define RT2573 0x2573
181 #define RT2860 0x2860 /* 2.4GHz */
182 #define RT2872 0x2872 /* WSOC */
183 #define RT2883 0x2883 /* WSOC */
184 #define RT3070 0x3070
185 #define RT3071 0x3071
186 #define RT3090 0x3090 /* 2.4GHz PCIe */
187 #define RT3390 0x3390
188 #define RT3572 0x3572
189 #define RT3593 0x3593 /* PCIe */
190 #define RT3883 0x3883 /* WSOC */
195 enum rt2x00_chip_intf intf;
199 * RF register values that belong to a particular channel.
210 * Channel information structure
212 struct channel_info {
214 #define GEOGRAPHY_ALLOWED 0x00000001
217 short default_power1;
218 short default_power2;
222 * Antenna setup values.
224 struct antenna_setup {
230 * Quality statistics about the currently active link.
234 * Statistics required for Link tuning by driver
235 * The rssi value is provided by rt2x00lib during the
236 * link_tuner() callback function.
237 * The false_cca field is filled during the link_stats()
238 * callback function and could be used during the
239 * link_tuner() callback function.
246 * Hardware driver will tune the VGC level during each call
247 * to the link_tuner() callback function. This vgc_level is
248 * is determined based on the link quality statistics like
249 * average RSSI and the false CCA count.
251 * In some cases the drivers need to differentiate between
252 * the currently "desired" VGC level and the level configured
253 * in the hardware. The latter is important to reduce the
254 * number of BBP register reads to reduce register access
255 * overhead. For this reason we store both values here.
261 * Statistics required for Signal quality calculation.
262 * These fields might be changed during the link_stats()
272 * Antenna settings about the currently active link.
279 #define ANTENNA_RX_DIVERSITY 0x00000001
280 #define ANTENNA_TX_DIVERSITY 0x00000002
281 #define ANTENNA_MODE_SAMPLE 0x00000004
284 * Currently active TX/RX antenna setup.
285 * When software diversity is used, this will indicate
286 * which antenna is actually used at this time.
288 struct antenna_setup active;
291 * RSSI history information for the antenna.
292 * Used to determine when to switch antenna
293 * when using software diversity.
298 * Current RSSI average of the currently active antenna.
299 * Similar to the avg_rssi in the link_qual structure
300 * this value is updated by using the walking average.
302 struct avg_val rssi_ant;
306 * To optimize the quality of the link we need to store
307 * the quality of received frames and periodically
313 * The number of times the link has been tuned
314 * since the radio has been switched on.
319 * Quality measurement values.
321 struct link_qual qual;
324 * TX/RX antenna setup.
329 * Currently active average RSSI value
331 struct avg_val avg_rssi;
334 * Work structure for scheduling periodic link tuning.
336 struct delayed_work work;
339 * Work structure for scheduling periodic watchdog monitoring.
341 struct delayed_work watchdog_work;
345 * Interface structure
346 * Per interface configuration details, this structure
347 * is allocated as the private data for ieee80211_vif.
351 * All fields within the rt2x00_intf structure
352 * must be protected with a spinlock.
362 * BBSID of the AP to associate with.
367 * beacon->skb must be protected with the mutex.
369 struct mutex beacon_skb_mutex;
372 * Entry in the beacon queue which belongs to
373 * this interface. Each interface has its own
374 * dedicated beacon entry.
376 struct queue_entry *beacon;
379 * Actions that needed rescheduling.
381 unsigned int delayed_flags;
382 #define DELAYED_UPDATE_BEACON 0x00000001
385 * Software sequence counter, this is only required
386 * for hardware which doesn't support hardware
393 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
395 return (struct rt2x00_intf *)vif->drv_priv;
399 * struct hw_mode_spec: Hardware specifications structure
401 * Details about the supported modes, rates and channels
402 * of a particular chipset. This is used by rt2x00lib
403 * to build the ieee80211_hw_mode array for mac80211.
405 * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
406 * @supported_rates: Rate types which are supported (CCK, OFDM).
407 * @num_channels: Number of supported channels. This is used as array size
408 * for @tx_power_a, @tx_power_bg and @channels.
409 * @channels: Device/chipset specific channel values (See &struct rf_channel).
410 * @channels_info: Additional information for channels (See &struct channel_info).
411 * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
413 struct hw_mode_spec {
414 unsigned int supported_bands;
415 #define SUPPORT_BAND_2GHZ 0x00000001
416 #define SUPPORT_BAND_5GHZ 0x00000002
418 unsigned int supported_rates;
419 #define SUPPORT_RATE_CCK 0x00000001
420 #define SUPPORT_RATE_OFDM 0x00000002
422 unsigned int num_channels;
423 const struct rf_channel *channels;
424 const struct channel_info *channels_info;
426 struct ieee80211_sta_ht_cap ht;
430 * Configuration structure wrapper around the
431 * mac80211 configuration structure.
432 * When mac80211 configures the driver, rt2x00lib
433 * can precalculate values which are equal for all
434 * rt2x00 drivers. Those values can be stored in here.
436 struct rt2x00lib_conf {
437 struct ieee80211_conf *conf;
439 struct rf_channel rf;
440 struct channel_info channel;
444 * Configuration structure for erp settings.
446 struct rt2x00lib_erp {
463 * Configuration structure for hardware encryption.
465 struct rt2x00lib_crypto {
468 enum set_key_cmd cmd;
480 * Configuration structure wrapper around the
481 * rt2x00 interface configuration handler.
483 struct rt2x00intf_conf {
487 enum nl80211_iftype type;
490 * TSF sync value, this is dependant on the operation type.
495 * The MAC and BSSID addressess are simple array of bytes,
496 * these arrays are little endian, so when sending the addressess
497 * to the drivers, copy the it into a endian-signed variable.
499 * Note that all devices (except rt2500usb) have 32 bits
500 * register word sizes. This means that whatever variable we
501 * pass _must_ be a multiple of 32 bits. Otherwise the device
502 * might not accept what we are sending to it.
503 * This will also make it easier for the driver to write
504 * the data to the device.
511 * rt2x00lib callback functions.
513 struct rt2x00lib_ops {
515 * Interrupt handlers.
517 irq_handler_t irq_handler;
520 * Threaded Interrupt handlers.
522 irq_handler_t irq_handler_thread;
525 * Device init handlers.
527 int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
528 char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
529 int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
530 const u8 *data, const size_t len);
531 int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
532 const u8 *data, const size_t len);
535 * Device initialization/deinitialization handlers.
537 int (*initialize) (struct rt2x00_dev *rt2x00dev);
538 void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
541 * queue initialization handlers
543 bool (*get_entry_state) (struct queue_entry *entry);
544 void (*clear_entry) (struct queue_entry *entry);
547 * Radio control handlers.
549 int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
550 enum dev_state state);
551 int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
552 void (*link_stats) (struct rt2x00_dev *rt2x00dev,
553 struct link_qual *qual);
554 void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
555 struct link_qual *qual);
556 void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
557 struct link_qual *qual, const u32 count);
558 void (*watchdog) (struct rt2x00_dev *rt2x00dev);
561 * TX control handlers
563 void (*write_tx_desc) (struct queue_entry *entry,
564 struct txentry_desc *txdesc);
565 void (*write_tx_data) (struct queue_entry *entry,
566 struct txentry_desc *txdesc);
567 void (*write_beacon) (struct queue_entry *entry,
568 struct txentry_desc *txdesc);
569 int (*get_tx_data_len) (struct queue_entry *entry);
570 void (*kick_tx_queue) (struct data_queue *queue);
571 void (*kill_tx_queue) (struct data_queue *queue);
574 * RX control handlers
576 void (*fill_rxdone) (struct queue_entry *entry,
577 struct rxdone_entry_desc *rxdesc);
580 * Configuration handlers.
582 int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
583 struct rt2x00lib_crypto *crypto,
584 struct ieee80211_key_conf *key);
585 int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
586 struct rt2x00lib_crypto *crypto,
587 struct ieee80211_key_conf *key);
588 void (*config_filter) (struct rt2x00_dev *rt2x00dev,
589 const unsigned int filter_flags);
590 void (*config_intf) (struct rt2x00_dev *rt2x00dev,
591 struct rt2x00_intf *intf,
592 struct rt2x00intf_conf *conf,
593 const unsigned int flags);
594 #define CONFIG_UPDATE_TYPE ( 1 << 1 )
595 #define CONFIG_UPDATE_MAC ( 1 << 2 )
596 #define CONFIG_UPDATE_BSSID ( 1 << 3 )
598 void (*config_erp) (struct rt2x00_dev *rt2x00dev,
599 struct rt2x00lib_erp *erp);
600 void (*config_ant) (struct rt2x00_dev *rt2x00dev,
601 struct antenna_setup *ant);
602 void (*config) (struct rt2x00_dev *rt2x00dev,
603 struct rt2x00lib_conf *libconf,
604 const unsigned int changed_flags);
608 * rt2x00 driver callback operation structure.
612 const unsigned int max_sta_intf;
613 const unsigned int max_ap_intf;
614 const unsigned int eeprom_size;
615 const unsigned int rf_size;
616 const unsigned int tx_queues;
617 const unsigned int extra_tx_headroom;
618 const struct data_queue_desc *rx;
619 const struct data_queue_desc *tx;
620 const struct data_queue_desc *bcn;
621 const struct data_queue_desc *atim;
622 const struct rt2x00lib_ops *lib;
624 const struct ieee80211_ops *hw;
625 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
626 const struct rt2x00debug *debugfs;
627 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
631 * rt2x00 device flags
637 DEVICE_STATE_PRESENT,
638 DEVICE_STATE_REGISTERED_HW,
639 DEVICE_STATE_INITIALIZED,
640 DEVICE_STATE_STARTED,
641 DEVICE_STATE_ENABLED_RADIO,
642 DEVICE_STATE_SCANNING,
645 * Driver requirements
647 DRIVER_REQUIRE_FIRMWARE,
648 DRIVER_REQUIRE_BEACON_GUARD,
649 DRIVER_REQUIRE_ATIM_QUEUE,
651 DRIVER_REQUIRE_COPY_IV,
652 DRIVER_REQUIRE_L2PAD,
657 CONFIG_SUPPORT_HW_BUTTON,
658 CONFIG_SUPPORT_HW_CRYPTO,
659 DRIVER_SUPPORT_CONTROL_FILTERS,
660 DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL,
661 DRIVER_SUPPORT_PRE_TBTT_INTERRUPT,
662 DRIVER_SUPPORT_LINK_TUNING,
663 DRIVER_SUPPORT_WATCHDOG,
666 * Driver configuration
670 CONFIG_EXTERNAL_LNA_A,
671 CONFIG_EXTERNAL_LNA_BG,
672 CONFIG_DOUBLE_ANTENNA,
677 * rt2x00 device structure.
682 * The structure stored in here depends on the
683 * system bus (PCI or USB).
684 * When accessing this variable, the rt2x00dev_{pci,usb}
685 * macros should be used for correct typecasting.
690 * Callback functions.
692 const struct rt2x00_ops *ops;
695 * IEEE80211 control structure.
697 struct ieee80211_hw *hw;
698 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
699 enum ieee80211_band curr_band;
703 * If enabled, the debugfs interface structures
704 * required for deregistration of debugfs.
706 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
707 struct rt2x00debug_intf *debugfs_intf;
708 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
711 * LED structure for changing the LED status
712 * by mac8011 or the kernel.
714 #ifdef CONFIG_RT2X00_LIB_LEDS
715 struct rt2x00_led led_radio;
716 struct rt2x00_led led_assoc;
717 struct rt2x00_led led_qual;
719 #endif /* CONFIG_RT2X00_LIB_LEDS */
723 * In these flags the current status and some
724 * of the device capabilities are stored.
729 * Device information, Bus IRQ and name (PCI, SoC)
735 * Chipset identification.
737 struct rt2x00_chip chip;
740 * hw capability specifications.
742 struct hw_mode_spec spec;
745 * This is the default TX/RX antenna setup as indicated
746 * by the device's EEPROM.
748 struct antenna_setup default_ant;
752 * csr.base: CSR base register address. (PCI)
753 * csr.cache: CSR cache for usb_control_msg. (USB)
761 * Mutex to protect register accesses.
762 * For PCI and USB devices it protects against concurrent indirect
763 * register access (BBP, RF, MCU) since accessing those
764 * registers require multiple calls to the CSR registers.
765 * For USB devices it also protects the csr_cache since that
766 * field is used for normal CSR access and it cannot support
767 * multiple callers simultaneously.
769 struct mutex csr_mutex;
772 * Current packet filter configuration for the device.
773 * This contains all currently active FIF_* flags send
774 * to us by mac80211 during configure_filter().
776 unsigned int packet_filter;
780 * - Open ap interface count.
781 * - Open sta interface count.
782 * - Association count.
784 unsigned int intf_ap_count;
785 unsigned int intf_sta_count;
786 unsigned int intf_associated;
799 * Active RF register values.
800 * These are stored here so we don't need
801 * to read the rf registers and can directly
802 * use this value instead.
803 * This field should be accessed by using
804 * rt2x00_rf_read() and rt2x00_rf_write().
814 * Current TX power value.
819 * Current retry values.
825 * Rssi <-> Dbm offset
830 * Frequency offset (for rt61pci & rt73usb).
835 * Calibration information (for rt2800usb & rt2800pci).
847 * Low level statistics which will have
848 * to be kept up to date while device is running.
850 struct ieee80211_low_level_stats low_level_stats;
854 * NOTE: intf_work will use ieee80211_iterate_active_interfaces()
855 * which means it cannot be placed on the hw->workqueue
856 * due to RTNL locking requirements.
858 struct work_struct intf_work;
861 * Scheduled work for TX/RX done handling (USB devices)
863 struct work_struct rxdone_work;
864 struct work_struct txdone_work;
867 * Data queue arrays for RX, TX and Beacon.
868 * The Beacon array also contains the Atim queue
869 * if that is supported by the device.
871 unsigned int data_queues;
872 struct data_queue *rx;
873 struct data_queue *tx;
874 struct data_queue *bcn;
879 const struct firmware *fw;
882 * Interrupt values, stored between interrupt service routine
883 * and interrupt thread routine.
890 * Some registers require multiple attempts before success,
891 * in those cases REGISTER_BUSY_COUNT attempts should be
892 * taken with a REGISTER_BUSY_DELAY interval.
894 #define REGISTER_BUSY_COUNT 5
895 #define REGISTER_BUSY_DELAY 100
899 * The RF is being accessed by word index.
901 static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
902 const unsigned int word, u32 *data)
904 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
905 *data = rt2x00dev->rf[word - 1];
908 static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
909 const unsigned int word, u32 data)
911 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
912 rt2x00dev->rf[word - 1] = data;
916 * Generic EEPROM access.
917 * The EEPROM is being accessed by word index.
919 static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
920 const unsigned int word)
922 return (void *)&rt2x00dev->eeprom[word];
925 static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
926 const unsigned int word, u16 *data)
928 *data = le16_to_cpu(rt2x00dev->eeprom[word]);
931 static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
932 const unsigned int word, u16 data)
934 rt2x00dev->eeprom[word] = cpu_to_le16(data);
940 static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
941 const u16 rt, const u16 rf, const u16 rev)
943 rt2x00dev->chip.rt = rt;
944 rt2x00dev->chip.rf = rf;
945 rt2x00dev->chip.rev = rev;
948 "Chipset detected - rt: %04x, rf: %04x, rev: %04x.\n",
949 rt2x00dev->chip.rt, rt2x00dev->chip.rf, rt2x00dev->chip.rev);
952 static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt)
954 return (rt2x00dev->chip.rt == rt);
957 static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
959 return (rt2x00dev->chip.rf == rf);
962 static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev)
964 return rt2x00dev->chip.rev;
967 static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev,
968 const u16 rt, const u16 rev)
970 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev);
973 static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev,
974 const u16 rt, const u16 rev)
976 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev);
979 static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev,
980 const u16 rt, const u16 rev)
982 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev);
985 static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
986 enum rt2x00_chip_intf intf)
988 rt2x00dev->chip.intf = intf;
991 static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev,
992 enum rt2x00_chip_intf intf)
994 return (rt2x00dev->chip.intf == intf);
997 static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev)
999 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI) ||
1000 rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1003 static inline bool rt2x00_is_pcie(struct rt2x00_dev *rt2x00dev)
1005 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1008 static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev)
1010 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
1013 static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
1015 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
1019 * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
1020 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1021 * @skb: The skb to map.
1023 void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
1026 * rt2x00queue_unmap_skb - Unmap a skb from DMA.
1027 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1028 * @skb: The skb to unmap.
1030 void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
1033 * rt2x00queue_get_queue - Convert queue index to queue pointer
1034 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1035 * @queue: rt2x00 queue index (see &enum data_queue_qid).
1037 struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
1038 const enum data_queue_qid queue);
1041 * rt2x00queue_get_entry - Get queue entry where the given index points to.
1042 * @queue: Pointer to &struct data_queue from where we obtain the entry.
1043 * @index: Index identifier for obtaining the correct index.
1045 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
1046 enum queue_index index);
1052 * rt2x00debug_dump_frame - Dump a frame to userspace through debugfs.
1053 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1054 * @type: The type of frame that is being dumped.
1055 * @skb: The skb containing the frame to be dumped.
1057 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1058 void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1059 enum rt2x00_dump_type type, struct sk_buff *skb);
1061 static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1062 enum rt2x00_dump_type type,
1063 struct sk_buff *skb)
1066 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1069 * Interrupt context handlers.
1071 void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
1072 void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev);
1073 void rt2x00lib_dmadone(struct queue_entry *entry);
1074 void rt2x00lib_txdone(struct queue_entry *entry,
1075 struct txdone_entry_desc *txdesc);
1076 void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status);
1077 void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
1078 struct queue_entry *entry);
1081 * mac80211 handlers.
1083 int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
1084 int rt2x00mac_start(struct ieee80211_hw *hw);
1085 void rt2x00mac_stop(struct ieee80211_hw *hw);
1086 int rt2x00mac_add_interface(struct ieee80211_hw *hw,
1087 struct ieee80211_vif *vif);
1088 void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
1089 struct ieee80211_vif *vif);
1090 int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
1091 void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
1092 unsigned int changed_flags,
1093 unsigned int *total_flags,
1095 int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
1097 #ifdef CONFIG_RT2X00_LIB_CRYPTO
1098 int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1099 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1100 struct ieee80211_key_conf *key);
1102 #define rt2x00mac_set_key NULL
1103 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
1104 void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw);
1105 void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw);
1106 int rt2x00mac_get_stats(struct ieee80211_hw *hw,
1107 struct ieee80211_low_level_stats *stats);
1108 void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
1109 struct ieee80211_vif *vif,
1110 struct ieee80211_bss_conf *bss_conf,
1112 int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
1113 const struct ieee80211_tx_queue_params *params);
1114 void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
1117 * Driver allocation handlers.
1119 int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
1120 void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
1122 int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
1123 int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
1124 #endif /* CONFIG_PM */
1126 #endif /* RT2X00_H */