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>
39 #include <linux/kfifo.h>
41 #include <net/mac80211.h>
43 #include "rt2x00debug.h"
44 #include "rt2x00dump.h"
45 #include "rt2x00leds.h"
46 #include "rt2x00reg.h"
47 #include "rt2x00queue.h"
52 #define DRV_VERSION "2.3.0"
53 #define DRV_PROJECT "http://rt2x00.serialmonkey.com"
57 * Debug output has to be enabled during compile time.
59 #define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
60 printk(__kernlvl "%s -> %s: %s - " __msg, \
61 wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args)
63 #define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
64 printk(__kernlvl "%s -> %s: %s - " __msg, \
65 KBUILD_MODNAME, __func__, __lvl, ##__args)
67 #ifdef CONFIG_RT2X00_DEBUG
68 #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
69 DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args)
71 #define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
73 #endif /* CONFIG_RT2X00_DEBUG */
76 * Various debug levels.
77 * The debug levels PANIC and ERROR both indicate serious problems,
78 * for this reason they should never be ignored.
79 * The special ERROR_PROBE message is for messages that are generated
80 * when the rt2x00_dev is not yet initialized.
82 #define PANIC(__dev, __msg, __args...) \
83 DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
84 #define ERROR(__dev, __msg, __args...) \
85 DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
86 #define ERROR_PROBE(__msg, __args...) \
87 DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
88 #define WARNING(__dev, __msg, __args...) \
89 DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
90 #define NOTICE(__dev, __msg, __args...) \
91 DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
92 #define INFO(__dev, __msg, __args...) \
93 DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
94 #define DEBUG(__dev, __msg, __args...) \
95 DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
96 #define EEPROM(__dev, __msg, __args...) \
97 DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
100 * Duration calculations
101 * The rate variable passed is: 100kbs.
102 * To convert from bytes to bits we multiply size with 8,
103 * then the size is multiplied with 10 to make the
104 * real rate -> rate argument correction.
106 #define GET_DURATION(__size, __rate) (((__size) * 8 * 10) / (__rate))
107 #define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
110 * Determine the number of L2 padding bytes required between the header and
113 #define L2PAD_SIZE(__hdrlen) (-(__hdrlen) & 3)
116 * Determine the alignment requirement,
117 * to make sure the 802.11 payload is padded to a 4-byte boundrary
118 * we must determine the address of the payload and calculate the
119 * amount of bytes needed to move the data.
121 #define ALIGN_SIZE(__skb, __header) \
122 ( ((unsigned long)((__skb)->data + (__header))) & 3 )
125 * Constants for extra TX headroom for alignment purposes.
127 #define RT2X00_ALIGN_SIZE 4 /* Only whole frame needs alignment */
128 #define RT2X00_L2PAD_SIZE 8 /* Both header & payload need alignment */
131 * Standard timing and size defines.
132 * These values should follow the ieee80211 specifications.
135 #define IEEE80211_HEADER 24
139 #define SHORT_PREAMBLE 72
141 #define SHORT_SLOT_TIME 9
143 #define PIFS ( SIFS + SLOT_TIME )
144 #define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
145 #define DIFS ( PIFS + SLOT_TIME )
146 #define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
147 #define EIFS ( SIFS + DIFS + \
148 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
149 #define SHORT_EIFS ( SIFS + SHORT_DIFS + \
150 GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
153 * Structure for average calculation
154 * The avg field contains the actual average value,
155 * but avg_weight is internally used during calculations
156 * to prevent rounding errors.
163 enum rt2x00_chip_intf {
164 RT2X00_CHIP_INTF_PCI,
165 RT2X00_CHIP_INTF_PCIE,
166 RT2X00_CHIP_INTF_USB,
167 RT2X00_CHIP_INTF_SOC,
171 * Chipset identification
172 * The chipset on the device is composed of a RT and RF chip.
173 * The chipset combination is important for determining device capabilities.
177 #define RT2460 0x2460
178 #define RT2560 0x2560
179 #define RT2570 0x2570
180 #define RT2661 0x2661
181 #define RT2573 0x2573
182 #define RT2860 0x2860 /* 2.4GHz */
183 #define RT2872 0x2872 /* WSOC */
184 #define RT2883 0x2883 /* WSOC */
185 #define RT3070 0x3070
186 #define RT3071 0x3071
187 #define RT3090 0x3090 /* 2.4GHz PCIe */
188 #define RT3390 0x3390
189 #define RT3572 0x3572
190 #define RT3593 0x3593 /* PCIe */
191 #define RT3883 0x3883 /* WSOC */
196 enum rt2x00_chip_intf intf;
200 * RF register values that belong to a particular channel.
211 * Channel information structure
213 struct channel_info {
215 #define GEOGRAPHY_ALLOWED 0x00000001
218 short default_power1;
219 short default_power2;
223 * Antenna setup values.
225 struct antenna_setup {
231 * Quality statistics about the currently active link.
235 * Statistics required for Link tuning by driver
236 * The rssi value is provided by rt2x00lib during the
237 * link_tuner() callback function.
238 * The false_cca field is filled during the link_stats()
239 * callback function and could be used during the
240 * link_tuner() callback function.
247 * Hardware driver will tune the VGC level during each call
248 * to the link_tuner() callback function. This vgc_level is
249 * is determined based on the link quality statistics like
250 * average RSSI and the false CCA count.
252 * In some cases the drivers need to differentiate between
253 * the currently "desired" VGC level and the level configured
254 * in the hardware. The latter is important to reduce the
255 * number of BBP register reads to reduce register access
256 * overhead. For this reason we store both values here.
262 * Statistics required for Signal quality calculation.
263 * These fields might be changed during the link_stats()
273 * Antenna settings about the currently active link.
280 #define ANTENNA_RX_DIVERSITY 0x00000001
281 #define ANTENNA_TX_DIVERSITY 0x00000002
282 #define ANTENNA_MODE_SAMPLE 0x00000004
285 * Currently active TX/RX antenna setup.
286 * When software diversity is used, this will indicate
287 * which antenna is actually used at this time.
289 struct antenna_setup active;
292 * RSSI history information for the antenna.
293 * Used to determine when to switch antenna
294 * when using software diversity.
299 * Current RSSI average of the currently active antenna.
300 * Similar to the avg_rssi in the link_qual structure
301 * this value is updated by using the walking average.
303 struct avg_val rssi_ant;
307 * To optimize the quality of the link we need to store
308 * the quality of received frames and periodically
314 * The number of times the link has been tuned
315 * since the radio has been switched on.
320 * Quality measurement values.
322 struct link_qual qual;
325 * TX/RX antenna setup.
330 * Currently active average RSSI value
332 struct avg_val avg_rssi;
335 * Work structure for scheduling periodic link tuning.
337 struct delayed_work work;
340 * Work structure for scheduling periodic watchdog monitoring.
341 * This work must be scheduled on the kernel workqueue, while
342 * all other work structures must be queued on the mac80211
343 * workqueue. This guarantees that the watchdog can schedule
344 * other work structures and wait for their completion in order
345 * to bring the device/driver back into the desired state.
347 struct delayed_work watchdog_work;
351 * Interface structure
352 * Per interface configuration details, this structure
353 * is allocated as the private data for ieee80211_vif.
357 * All fields within the rt2x00_intf structure
358 * must be protected with a spinlock.
368 * BBSID of the AP to associate with.
373 * beacon->skb must be protected with the mutex.
375 struct mutex beacon_skb_mutex;
378 * Entry in the beacon queue which belongs to
379 * this interface. Each interface has its own
380 * dedicated beacon entry.
382 struct queue_entry *beacon;
385 * Actions that needed rescheduling.
387 unsigned int delayed_flags;
388 #define DELAYED_UPDATE_BEACON 0x00000001
391 * Software sequence counter, this is only required
392 * for hardware which doesn't support hardware
399 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
401 return (struct rt2x00_intf *)vif->drv_priv;
405 * struct hw_mode_spec: Hardware specifications structure
407 * Details about the supported modes, rates and channels
408 * of a particular chipset. This is used by rt2x00lib
409 * to build the ieee80211_hw_mode array for mac80211.
411 * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
412 * @supported_rates: Rate types which are supported (CCK, OFDM).
413 * @num_channels: Number of supported channels. This is used as array size
414 * for @tx_power_a, @tx_power_bg and @channels.
415 * @channels: Device/chipset specific channel values (See &struct rf_channel).
416 * @channels_info: Additional information for channels (See &struct channel_info).
417 * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
419 struct hw_mode_spec {
420 unsigned int supported_bands;
421 #define SUPPORT_BAND_2GHZ 0x00000001
422 #define SUPPORT_BAND_5GHZ 0x00000002
424 unsigned int supported_rates;
425 #define SUPPORT_RATE_CCK 0x00000001
426 #define SUPPORT_RATE_OFDM 0x00000002
428 unsigned int num_channels;
429 const struct rf_channel *channels;
430 const struct channel_info *channels_info;
432 struct ieee80211_sta_ht_cap ht;
436 * Configuration structure wrapper around the
437 * mac80211 configuration structure.
438 * When mac80211 configures the driver, rt2x00lib
439 * can precalculate values which are equal for all
440 * rt2x00 drivers. Those values can be stored in here.
442 struct rt2x00lib_conf {
443 struct ieee80211_conf *conf;
445 struct rf_channel rf;
446 struct channel_info channel;
450 * Configuration structure for erp settings.
452 struct rt2x00lib_erp {
470 * Configuration structure for hardware encryption.
472 struct rt2x00lib_crypto {
475 enum set_key_cmd cmd;
487 * Configuration structure wrapper around the
488 * rt2x00 interface configuration handler.
490 struct rt2x00intf_conf {
494 enum nl80211_iftype type;
497 * TSF sync value, this is dependant on the operation type.
502 * The MAC and BSSID addressess are simple array of bytes,
503 * these arrays are little endian, so when sending the addressess
504 * to the drivers, copy the it into a endian-signed variable.
506 * Note that all devices (except rt2500usb) have 32 bits
507 * register word sizes. This means that whatever variable we
508 * pass _must_ be a multiple of 32 bits. Otherwise the device
509 * might not accept what we are sending to it.
510 * This will also make it easier for the driver to write
511 * the data to the device.
518 * rt2x00lib callback functions.
520 struct rt2x00lib_ops {
522 * Interrupt handlers.
524 irq_handler_t irq_handler;
527 * Threaded Interrupt handlers.
529 irq_handler_t irq_handler_thread;
532 * TX status tasklet handler.
534 void (*txstatus_tasklet) (unsigned long data);
537 * Device init handlers.
539 int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
540 char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
541 int (*check_firmware) (struct rt2x00_dev *rt2x00dev,
542 const u8 *data, const size_t len);
543 int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
544 const u8 *data, const size_t len);
547 * Device initialization/deinitialization handlers.
549 int (*initialize) (struct rt2x00_dev *rt2x00dev);
550 void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
553 * queue initialization handlers
555 bool (*get_entry_state) (struct queue_entry *entry);
556 void (*clear_entry) (struct queue_entry *entry);
559 * Radio control handlers.
561 int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
562 enum dev_state state);
563 int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
564 void (*link_stats) (struct rt2x00_dev *rt2x00dev,
565 struct link_qual *qual);
566 void (*reset_tuner) (struct rt2x00_dev *rt2x00dev,
567 struct link_qual *qual);
568 void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
569 struct link_qual *qual, const u32 count);
572 * Data queue handlers.
574 void (*watchdog) (struct rt2x00_dev *rt2x00dev);
575 void (*start_queue) (struct data_queue *queue);
576 void (*kick_queue) (struct data_queue *queue);
577 void (*stop_queue) (struct data_queue *queue);
578 void (*flush_queue) (struct data_queue *queue);
581 * TX control handlers
583 void (*write_tx_desc) (struct queue_entry *entry,
584 struct txentry_desc *txdesc);
585 void (*write_tx_data) (struct queue_entry *entry,
586 struct txentry_desc *txdesc);
587 void (*write_beacon) (struct queue_entry *entry,
588 struct txentry_desc *txdesc);
589 int (*get_tx_data_len) (struct queue_entry *entry);
592 * RX control handlers
594 void (*fill_rxdone) (struct queue_entry *entry,
595 struct rxdone_entry_desc *rxdesc);
598 * Configuration handlers.
600 int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
601 struct rt2x00lib_crypto *crypto,
602 struct ieee80211_key_conf *key);
603 int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
604 struct rt2x00lib_crypto *crypto,
605 struct ieee80211_key_conf *key);
606 void (*config_filter) (struct rt2x00_dev *rt2x00dev,
607 const unsigned int filter_flags);
608 void (*config_intf) (struct rt2x00_dev *rt2x00dev,
609 struct rt2x00_intf *intf,
610 struct rt2x00intf_conf *conf,
611 const unsigned int flags);
612 #define CONFIG_UPDATE_TYPE ( 1 << 1 )
613 #define CONFIG_UPDATE_MAC ( 1 << 2 )
614 #define CONFIG_UPDATE_BSSID ( 1 << 3 )
616 void (*config_erp) (struct rt2x00_dev *rt2x00dev,
617 struct rt2x00lib_erp *erp,
619 void (*config_ant) (struct rt2x00_dev *rt2x00dev,
620 struct antenna_setup *ant);
621 void (*config) (struct rt2x00_dev *rt2x00dev,
622 struct rt2x00lib_conf *libconf,
623 const unsigned int changed_flags);
627 * rt2x00 driver callback operation structure.
631 const unsigned int max_sta_intf;
632 const unsigned int max_ap_intf;
633 const unsigned int eeprom_size;
634 const unsigned int rf_size;
635 const unsigned int tx_queues;
636 const unsigned int extra_tx_headroom;
637 const struct data_queue_desc *rx;
638 const struct data_queue_desc *tx;
639 const struct data_queue_desc *bcn;
640 const struct data_queue_desc *atim;
641 const struct rt2x00lib_ops *lib;
643 const struct ieee80211_ops *hw;
644 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
645 const struct rt2x00debug *debugfs;
646 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
650 * rt2x00 device flags
656 DEVICE_STATE_PRESENT,
657 DEVICE_STATE_REGISTERED_HW,
658 DEVICE_STATE_INITIALIZED,
659 DEVICE_STATE_STARTED,
660 DEVICE_STATE_ENABLED_RADIO,
661 DEVICE_STATE_SCANNING,
664 * Driver requirements
666 DRIVER_REQUIRE_FIRMWARE,
667 DRIVER_REQUIRE_BEACON_GUARD,
668 DRIVER_REQUIRE_ATIM_QUEUE,
670 DRIVER_REQUIRE_COPY_IV,
671 DRIVER_REQUIRE_L2PAD,
672 DRIVER_REQUIRE_TXSTATUS_FIFO,
673 DRIVER_REQUIRE_TASKLET_CONTEXT,
678 CONFIG_SUPPORT_HW_BUTTON,
679 CONFIG_SUPPORT_HW_CRYPTO,
680 DRIVER_SUPPORT_CONTROL_FILTERS,
681 DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL,
682 DRIVER_SUPPORT_PRE_TBTT_INTERRUPT,
683 DRIVER_SUPPORT_LINK_TUNING,
684 DRIVER_SUPPORT_WATCHDOG,
687 * Driver configuration
691 CONFIG_EXTERNAL_LNA_A,
692 CONFIG_EXTERNAL_LNA_BG,
693 CONFIG_DOUBLE_ANTENNA,
698 * rt2x00 device structure.
703 * The structure stored in here depends on the
704 * system bus (PCI or USB).
705 * When accessing this variable, the rt2x00dev_{pci,usb}
706 * macros should be used for correct typecasting.
711 * Callback functions.
713 const struct rt2x00_ops *ops;
716 * IEEE80211 control structure.
718 struct ieee80211_hw *hw;
719 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
720 enum ieee80211_band curr_band;
724 * If enabled, the debugfs interface structures
725 * required for deregistration of debugfs.
727 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
728 struct rt2x00debug_intf *debugfs_intf;
729 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
732 * LED structure for changing the LED status
733 * by mac8011 or the kernel.
735 #ifdef CONFIG_RT2X00_LIB_LEDS
736 struct rt2x00_led led_radio;
737 struct rt2x00_led led_assoc;
738 struct rt2x00_led led_qual;
740 #endif /* CONFIG_RT2X00_LIB_LEDS */
744 * In these flags the current status and some
745 * of the device capabilities are stored.
750 * Device information, Bus IRQ and name (PCI, SoC)
756 * Chipset identification.
758 struct rt2x00_chip chip;
761 * hw capability specifications.
763 struct hw_mode_spec spec;
766 * This is the default TX/RX antenna setup as indicated
767 * by the device's EEPROM.
769 struct antenna_setup default_ant;
773 * csr.base: CSR base register address. (PCI)
774 * csr.cache: CSR cache for usb_control_msg. (USB)
782 * Mutex to protect register accesses.
783 * For PCI and USB devices it protects against concurrent indirect
784 * register access (BBP, RF, MCU) since accessing those
785 * registers require multiple calls to the CSR registers.
786 * For USB devices it also protects the csr_cache since that
787 * field is used for normal CSR access and it cannot support
788 * multiple callers simultaneously.
790 struct mutex csr_mutex;
793 * Current packet filter configuration for the device.
794 * This contains all currently active FIF_* flags send
795 * to us by mac80211 during configure_filter().
797 unsigned int packet_filter;
801 * - Open ap interface count.
802 * - Open sta interface count.
803 * - Association count.
805 unsigned int intf_ap_count;
806 unsigned int intf_sta_count;
807 unsigned int intf_associated;
820 * Active RF register values.
821 * These are stored here so we don't need
822 * to read the rf registers and can directly
823 * use this value instead.
824 * This field should be accessed by using
825 * rt2x00_rf_read() and rt2x00_rf_write().
835 * Current TX power value.
840 * Current retry values.
846 * Rssi <-> Dbm offset
851 * Frequency offset (for rt61pci & rt73usb).
856 * Calibration information (for rt2800usb & rt2800pci).
868 * Low level statistics which will have
869 * to be kept up to date while device is running.
871 struct ieee80211_low_level_stats low_level_stats;
875 * NOTE: intf_work will use ieee80211_iterate_active_interfaces()
876 * which means it cannot be placed on the hw->workqueue
877 * due to RTNL locking requirements.
879 struct work_struct intf_work;
882 * Scheduled work for TX/RX done handling (USB devices)
884 struct work_struct rxdone_work;
885 struct work_struct txdone_work;
888 * Data queue arrays for RX, TX and Beacon.
889 * The Beacon array also contains the Atim queue
890 * if that is supported by the device.
892 unsigned int data_queues;
893 struct data_queue *rx;
894 struct data_queue *tx;
895 struct data_queue *bcn;
900 const struct firmware *fw;
903 * Interrupt values, stored between interrupt service routine
904 * and interrupt thread routine.
909 * FIFO for storing tx status reports between isr and tasklet.
911 DECLARE_KFIFO_PTR(txstatus_fifo, u32);
914 * Tasklet for processing tx status reports (rt2800pci).
916 struct tasklet_struct txstatus_tasklet;
921 * Some registers require multiple attempts before success,
922 * in those cases REGISTER_BUSY_COUNT attempts should be
923 * taken with a REGISTER_BUSY_DELAY interval.
925 #define REGISTER_BUSY_COUNT 100
926 #define REGISTER_BUSY_DELAY 100
930 * The RF is being accessed by word index.
932 static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
933 const unsigned int word, u32 *data)
935 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
936 *data = rt2x00dev->rf[word - 1];
939 static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
940 const unsigned int word, u32 data)
942 BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
943 rt2x00dev->rf[word - 1] = data;
947 * Generic EEPROM access.
948 * The EEPROM is being accessed by word index.
950 static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
951 const unsigned int word)
953 return (void *)&rt2x00dev->eeprom[word];
956 static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
957 const unsigned int word, u16 *data)
959 *data = le16_to_cpu(rt2x00dev->eeprom[word]);
962 static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
963 const unsigned int word, u16 data)
965 rt2x00dev->eeprom[word] = cpu_to_le16(data);
971 static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
972 const u16 rt, const u16 rf, const u16 rev)
974 rt2x00dev->chip.rt = rt;
975 rt2x00dev->chip.rf = rf;
976 rt2x00dev->chip.rev = rev;
979 "Chipset detected - rt: %04x, rf: %04x, rev: %04x.\n",
980 rt2x00dev->chip.rt, rt2x00dev->chip.rf, rt2x00dev->chip.rev);
983 static inline bool rt2x00_rt(struct rt2x00_dev *rt2x00dev, const u16 rt)
985 return (rt2x00dev->chip.rt == rt);
988 static inline bool rt2x00_rf(struct rt2x00_dev *rt2x00dev, const u16 rf)
990 return (rt2x00dev->chip.rf == rf);
993 static inline u16 rt2x00_rev(struct rt2x00_dev *rt2x00dev)
995 return rt2x00dev->chip.rev;
998 static inline bool rt2x00_rt_rev(struct rt2x00_dev *rt2x00dev,
999 const u16 rt, const u16 rev)
1001 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) == rev);
1004 static inline bool rt2x00_rt_rev_lt(struct rt2x00_dev *rt2x00dev,
1005 const u16 rt, const u16 rev)
1007 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) < rev);
1010 static inline bool rt2x00_rt_rev_gte(struct rt2x00_dev *rt2x00dev,
1011 const u16 rt, const u16 rev)
1013 return (rt2x00_rt(rt2x00dev, rt) && rt2x00_rev(rt2x00dev) >= rev);
1016 static inline void rt2x00_set_chip_intf(struct rt2x00_dev *rt2x00dev,
1017 enum rt2x00_chip_intf intf)
1019 rt2x00dev->chip.intf = intf;
1022 static inline bool rt2x00_intf(struct rt2x00_dev *rt2x00dev,
1023 enum rt2x00_chip_intf intf)
1025 return (rt2x00dev->chip.intf == intf);
1028 static inline bool rt2x00_is_pci(struct rt2x00_dev *rt2x00dev)
1030 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI) ||
1031 rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1034 static inline bool rt2x00_is_pcie(struct rt2x00_dev *rt2x00dev)
1036 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
1039 static inline bool rt2x00_is_usb(struct rt2x00_dev *rt2x00dev)
1041 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_USB);
1044 static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
1046 return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
1050 * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
1051 * @entry: Pointer to &struct queue_entry
1053 void rt2x00queue_map_txskb(struct queue_entry *entry);
1056 * rt2x00queue_unmap_skb - Unmap a skb from DMA.
1057 * @entry: Pointer to &struct queue_entry
1059 void rt2x00queue_unmap_skb(struct queue_entry *entry);
1062 * rt2x00queue_get_queue - Convert queue index to queue pointer
1063 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1064 * @queue: rt2x00 queue index (see &enum data_queue_qid).
1066 struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
1067 const enum data_queue_qid queue);
1070 * rt2x00queue_get_entry - Get queue entry where the given index points to.
1071 * @queue: Pointer to &struct data_queue from where we obtain the entry.
1072 * @index: Index identifier for obtaining the correct index.
1074 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
1075 enum queue_index index);
1078 * rt2x00queue_pause_queue - Pause a data queue
1079 * @queue: Pointer to &struct data_queue.
1081 * This function will pause the data queue locally, preventing
1082 * new frames to be added to the queue (while the hardware is
1083 * still allowed to run).
1085 void rt2x00queue_pause_queue(struct data_queue *queue);
1088 * rt2x00queue_unpause_queue - unpause a data queue
1089 * @queue: Pointer to &struct data_queue.
1091 * This function will unpause the data queue locally, allowing
1092 * new frames to be added to the queue again.
1094 void rt2x00queue_unpause_queue(struct data_queue *queue);
1097 * rt2x00queue_start_queue - Start a data queue
1098 * @queue: Pointer to &struct data_queue.
1100 * This function will start handling all pending frames in the queue.
1102 void rt2x00queue_start_queue(struct data_queue *queue);
1105 * rt2x00queue_stop_queue - Halt a data queue
1106 * @queue: Pointer to &struct data_queue.
1108 * This function will stop all pending frames in the queue.
1110 void rt2x00queue_stop_queue(struct data_queue *queue);
1113 * rt2x00queue_flush_queue - Flush a data queue
1114 * @queue: Pointer to &struct data_queue.
1115 * @drop: True to drop all pending frames.
1117 * This function will flush the queue. After this call
1118 * the queue is guarenteed to be empty.
1120 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop);
1123 * rt2x00queue_start_queues - Start all data queues
1124 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1126 * This function will loop through all available queues to start them
1128 void rt2x00queue_start_queues(struct rt2x00_dev *rt2x00dev);
1131 * rt2x00queue_stop_queues - Halt all data queues
1132 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1134 * This function will loop through all available queues to stop
1135 * any pending frames.
1137 void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
1140 * rt2x00queue_flush_queues - Flush all data queues
1141 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1142 * @drop: True to drop all pending frames.
1144 * This function will loop through all available queues to flush
1145 * any pending frames.
1147 void rt2x00queue_flush_queues(struct rt2x00_dev *rt2x00dev, bool drop);
1153 * rt2x00debug_dump_frame - Dump a frame to userspace through debugfs.
1154 * @rt2x00dev: Pointer to &struct rt2x00_dev.
1155 * @type: The type of frame that is being dumped.
1156 * @skb: The skb containing the frame to be dumped.
1158 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1159 void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1160 enum rt2x00_dump_type type, struct sk_buff *skb);
1162 static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
1163 enum rt2x00_dump_type type,
1164 struct sk_buff *skb)
1167 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1170 * Interrupt context handlers.
1172 void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
1173 void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev);
1174 void rt2x00lib_dmastart(struct queue_entry *entry);
1175 void rt2x00lib_dmadone(struct queue_entry *entry);
1176 void rt2x00lib_txdone(struct queue_entry *entry,
1177 struct txdone_entry_desc *txdesc);
1178 void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status);
1179 void rt2x00lib_rxdone(struct queue_entry *entry);
1182 * mac80211 handlers.
1184 int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
1185 int rt2x00mac_start(struct ieee80211_hw *hw);
1186 void rt2x00mac_stop(struct ieee80211_hw *hw);
1187 int rt2x00mac_add_interface(struct ieee80211_hw *hw,
1188 struct ieee80211_vif *vif);
1189 void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
1190 struct ieee80211_vif *vif);
1191 int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
1192 void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
1193 unsigned int changed_flags,
1194 unsigned int *total_flags,
1196 int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
1198 #ifdef CONFIG_RT2X00_LIB_CRYPTO
1199 int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1200 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1201 struct ieee80211_key_conf *key);
1203 #define rt2x00mac_set_key NULL
1204 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
1205 void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw);
1206 void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw);
1207 int rt2x00mac_get_stats(struct ieee80211_hw *hw,
1208 struct ieee80211_low_level_stats *stats);
1209 void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
1210 struct ieee80211_vif *vif,
1211 struct ieee80211_bss_conf *bss_conf,
1213 int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
1214 const struct ieee80211_tx_queue_params *params);
1215 void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
1216 void rt2x00mac_flush(struct ieee80211_hw *hw, bool drop);
1219 * Driver allocation handlers.
1221 int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
1222 void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
1224 int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
1225 int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
1226 #endif /* CONFIG_PM */
1228 #endif /* RT2X00_H */