1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
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21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
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62 *****************************************************************************/
63 #ifndef __iwl_shared_h__
64 #define __iwl_shared_h__
66 #include <linux/types.h>
67 #include <linux/spinlock.h>
68 #include <linux/mutex.h>
69 #include <linux/gfp.h>
70 #include <linux/mm.h> /* for page_address */
71 #include <net/mac80211.h>
73 #include "iwl-commands.h"
76 * DOC: shared area - role and goal
78 * The shared area contains all the data exported by the upper layer to the
79 * other layers. Since the bus and transport layer shouldn't dereference
80 * iwl_priv, all the data needed by the upper layer and the transport / bus
82 * The shared area also holds pointer to all the other layers. This allows a
83 * layer to call a function from another layer.
85 * NOTE: All the layers hold a pointer to the shared area which must be shrd.
86 * A few macros assume that (_m)->shrd points to the shared area no matter
89 * gets notifications about enumeration, suspend, resume.
90 * For the moment, the bus layer is not a linux kernel module as itself, and
91 * the module_init function of the driver must call the bus specific
92 * registration functions. These functions are listed at the end of this file.
93 * For the moment, there is only one implementation of this interface: PCI-e.
94 * This implementation is iwl-pci.c
99 struct iwl_sensitivity_ranges
;
100 struct iwl_trans_ops
;
102 #define DRV_NAME "iwlwifi"
103 #define IWLWIFI_VERSION "in-tree:"
104 #define DRV_COPYRIGHT "Copyright(c) 2003-2012 Intel Corporation"
105 #define DRV_AUTHOR "<ilw@linux.intel.com>"
107 extern struct iwl_mod_params iwlagn_mod_params
;
109 #define IWL_DISABLE_HT_ALL BIT(0)
110 #define IWL_DISABLE_HT_TXAGG BIT(1)
111 #define IWL_DISABLE_HT_RXAGG BIT(2)
114 * struct iwl_mod_params
116 * Holds the module parameters
118 * @sw_crypto: using hardware encryption, default = 0
119 * @num_of_queues: number of tx queue, HW dependent
120 * @disable_11n: disable 11n capabilities, default = 0,
121 * use IWL_DISABLE_HT_* constants
122 * @amsdu_size_8K: enable 8K amsdu size, default = 1
123 * @antenna: both antennas (use diversity), default = 0
124 * @restart_fw: restart firmware, default = 1
125 * @plcp_check: enable plcp health check, default = true
126 * @ack_check: disable ack health check, default = false
127 * @wd_disable: enable stuck queue check, default = 0
128 * @bt_coex_active: enable bt coex, default = true
129 * @led_mode: system default, default = 0
130 * @no_sleep_autoadjust: disable autoadjust, default = true
131 * @power_save: disable power save, default = false
132 * @power_level: power level, default = 1
133 * @debug_level: levels are IWL_DL_*
134 * @ant_coupling: antenna coupling in dB, default = 0
135 * @bt_ch_announce: BT channel inhibition, default = enable
136 * @wanted_ucode_alternative: ucode alternative to use, default = 1
137 * @auto_agg: enable agg. without check, default = true
139 struct iwl_mod_params
{
142 unsigned int disable_11n
;
151 bool no_sleep_autoadjust
;
157 int wanted_ucode_alternative
;
162 * struct iwl_hw_params
164 * Holds the module parameters
166 * @max_txq_num: Max # Tx queues supported
167 * @num_ampdu_queues: num of ampdu queues
168 * @tx_chains_num: Number of TX chains
169 * @rx_chains_num: Number of RX chains
170 * @valid_tx_ant: usable antennas for TX
171 * @valid_rx_ant: usable antennas for RX
172 * @ht40_channel: is 40MHz width possible: BIT(IEEE80211_BAND_XXX)
173 * @sku: sku read from EEPROM
174 * @rx_page_order: Rx buffer page order
175 * @ct_kill_threshold: temperature threshold - in hw dependent unit
176 * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
177 * relevant for 1000, 6000 and up
178 * @wd_timeout: TX queues watchdog timeout
179 * @struct iwl_sensitivity_ranges: range of sensitivity values
181 struct iwl_hw_params
{
189 bool shadow_reg_enable
;
192 u32 ct_kill_threshold
;
193 u32 ct_kill_exit_threshold
;
194 unsigned int wd_timeout
;
196 const struct iwl_sensitivity_ranges
*sens
;
200 * enum iwl_ucode_type
202 * The type of ucode currently loaded on the hardware.
204 * @IWL_UCODE_NONE: No ucode loaded
205 * @IWL_UCODE_REGULAR: Normal runtime ucode
206 * @IWL_UCODE_INIT: Initial ucode
207 * @IWL_UCODE_WOWLAN: Wake on Wireless enabled ucode
209 enum iwl_ucode_type
{
217 * struct iwl_notification_wait - notification wait entry
218 * @list: list head for global list
219 * @fn: function called with the notification
222 * This structure is not used directly, to wait for a
223 * notification declare it on the stack, and call
224 * iwlagn_init_notification_wait() with appropriate
225 * parameters. Then do whatever will cause the ucode
226 * to notify the driver, and to wait for that then
227 * call iwlagn_wait_notification().
229 * Each notification is one-shot. If at some point we
230 * need to support multi-shot notifications (which
231 * can't be allocated on the stack) we need to modify
234 struct iwl_notification_wait
{
235 struct list_head list
;
237 void (*fn
)(struct iwl_trans
*trans
, struct iwl_rx_packet
*pkt
,
242 bool triggered
, aborted
;
246 * enum iwl_pa_type - Power Amplifier type
247 * @IWL_PA_SYSTEM: based on uCode configuration
248 * @IWL_PA_INTERNAL: use Internal only
257 * IWL_LED_DEFAULT: use device default
258 * IWL_LED_RF_STATE: turn LED on/off based on RF state
261 * IWL_LED_BLINK: adjust led blink rate based on blink table
262 * IWL_LED_DISABLE: led disabled
273 * @name: Offical name of the device
274 * @fw_name_pre: Firmware filename prefix. The api version and extension
275 * (.ucode) will be added to filename before loading from disk. The
276 * filename is constructed as fw_name_pre<api>.ucode.
277 * @ucode_api_max: Highest version of uCode API supported by driver.
278 * @ucode_api_ok: oldest version of the uCode API that is OK to load
279 * without a warning, for use in transitions
280 * @ucode_api_min: Lowest version of uCode API supported by driver.
281 * @max_inst_size: The maximal length of the fw inst section
282 * @max_data_size: The maximal length of the fw data section
283 * @valid_tx_ant: valid transmit antenna
284 * @valid_rx_ant: valid receive antenna
285 * @eeprom_ver: EEPROM version
286 * @eeprom_calib_ver: EEPROM calibration version
287 * @lib: pointer to the lib ops
288 * @additional_nic_config: additional nic configuration
289 * @base_params: pointer to basic parameters
290 * @ht_params: point to ht patameters
291 * @bt_params: pointer to bt parameters
292 * @pa_type: used by 6000 series only to identify the type of Power Amplifier
293 * @need_temp_offset_calib: need to perform temperature offset calibration
294 * @no_xtal_calib: some devices do not need crystal calibration data,
295 * don't send it to those
296 * @scan_rx_antennas: available antenna for scan operation
297 * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
298 * @adv_pm: advance power management
299 * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
300 * @internal_wimax_coex: internal wifi/wimax combo device
301 * @iq_invert: I/Q inversion
302 * @temp_offset_v2: support v2 of temperature offset calibration
304 * We enable the driver to be backward compatible wrt API version. The
305 * driver specifies which APIs it supports (with @ucode_api_max being the
306 * highest and @ucode_api_min the lowest). Firmware will only be loaded if
307 * it has a supported API version.
309 * The ideal usage of this infrastructure is to treat a new ucode API
310 * release as a new hardware revision.
313 /* params specific to an individual device within a device family */
315 const char *fw_name_pre
;
316 const unsigned int ucode_api_max
;
317 const unsigned int ucode_api_ok
;
318 const unsigned int ucode_api_min
;
319 const u32 max_data_size
;
320 const u32 max_inst_size
;
324 u16 eeprom_calib_ver
;
325 const struct iwl_lib_ops
*lib
;
326 void (*additional_nic_config
)(struct iwl_priv
*priv
);
327 /* params not likely to change within a device family */
328 struct iwl_base_params
*base_params
;
329 /* params likely to change within a device family */
330 struct iwl_ht_params
*ht_params
;
331 struct iwl_bt_params
*bt_params
;
332 enum iwl_pa_type pa_type
; /* if used set to IWL_PA_SYSTEM */
333 const bool need_temp_offset_calib
; /* if used set to true */
334 const bool no_xtal_calib
;
335 u8 scan_rx_antennas
[IEEE80211_NUM_BANDS
];
336 enum iwl_led_mode led_mode
;
338 const bool rx_with_siso_diversity
;
339 const bool internal_wimax_coex
;
340 const bool iq_invert
;
341 const bool temp_offset_v2
;
345 * struct iwl_shared - shared fields for all the layers of the driver
347 * @ucode_owner: IWL_OWNERSHIP_*
348 * @cmd_queue: command queue number
350 * @wowlan: are we running wowlan uCode
351 * @valid_contexts: microcode/device supports multiple contexts
352 * @bus: pointer to the bus layer data
353 * @cfg: see struct iwl_cfg
354 * @priv: pointer to the upper layer data
355 * @trans: pointer to the transport layer data
356 * @nic: pointer to the nic data
357 * @hw_params: see struct iwl_hw_params
358 * @lock: protect general shared data
360 * @wait_command_queue: the wait_queue for SYNC host command nad uCode load
361 * @eeprom: pointer to the eeprom/OTP image
362 * @ucode_type: indicator of loaded ucode image
363 * @notif_waits: things waiting for notification
364 * @notif_wait_lock: lock protecting notification
365 * @notif_waitq: head of notification wait queue
366 * @device_pointers: pointers to ucode event tables
369 #define IWL_OWNERSHIP_DRIVER 0
370 #define IWL_OWNERSHIP_TM 1
373 unsigned long status
;
376 const struct iwl_cfg
*cfg
;
377 struct iwl_priv
*priv
;
378 struct iwl_trans
*trans
;
380 struct iwl_hw_params hw_params
;
384 wait_queue_head_t wait_command_queue
;
386 /* eeprom -- this is in the card's little endian byte order */
389 /* ucode related variables */
390 enum iwl_ucode_type ucode_type
;
392 /* notification wait support */
393 struct list_head notif_waits
;
394 spinlock_t notif_wait_lock
;
395 wait_queue_head_t notif_waitq
;
398 u32 error_event_table
;
404 /*Whatever _m is (iwl_trans, iwl_priv, these macros will work */
405 #define priv(_m) ((_m)->shrd->priv)
406 #define cfg(_m) ((_m)->shrd->cfg)
407 #define nic(_m) ((_m)->shrd->nic)
408 #define trans(_m) ((_m)->shrd->trans)
409 #define hw_params(_m) ((_m)->shrd->hw_params)
411 static inline bool iwl_have_debug_level(u32 level
)
413 return iwlagn_mod_params
.debug_level
& level
;
416 struct iwl_rx_cmd_buffer
{
420 static inline void *rxb_addr(struct iwl_rx_cmd_buffer
*r
)
422 return page_address(r
->_page
);
425 static inline struct page
*rxb_steal_page(struct iwl_rx_cmd_buffer
*r
)
427 struct page
*p
= r
->_page
;
433 * mac80211 queues, ACs, hardware queues, FIFOs.
435 * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
437 * Mac80211 uses the following numbers, which we get as from it
438 * by way of skb_get_queue_mapping(skb):
446 * Regular (not A-MPDU) frames are put into hardware queues corresponding
447 * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
448 * own queue per aggregation session (RA/TID combination), such queues are
449 * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
450 * order to map frames to the right queue, we also need an AC->hw queue
451 * mapping. This is implemented here.
453 * Due to the way hw queues are set up (by the hw specific modules like
454 * iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity
458 static const u8 tid_to_ac
[] = {
469 static inline int get_ac_from_tid(u16 tid
)
471 if (likely(tid
< ARRAY_SIZE(tid_to_ac
)))
472 return tid_to_ac
[tid
];
474 /* no support for TIDs 8-15 yet */
478 enum iwl_rxon_context_id
{
485 int iwlagn_hw_valid_rtc_data_addr(u32 addr
);
486 void iwl_nic_config(struct iwl_priv
*priv
);
487 const char *get_cmd_string(u8 cmd
);
488 bool iwl_check_for_ct_kill(struct iwl_priv
*priv
);
491 /* notification wait support */
492 void iwl_abort_notification_waits(struct iwl_shared
*shrd
);
493 void __acquires(wait_entry
)
494 iwl_init_notification_wait(struct iwl_shared
*shrd
,
495 struct iwl_notification_wait
*wait_entry
,
497 void (*fn
)(struct iwl_trans
*trans
,
498 struct iwl_rx_packet
*pkt
,
501 int __must_check
__releases(wait_entry
)
502 iwl_wait_notification(struct iwl_shared
*shrd
,
503 struct iwl_notification_wait
*wait_entry
,
504 unsigned long timeout
);
505 void __releases(wait_entry
)
506 iwl_remove_notification(struct iwl_shared
*shrd
,
507 struct iwl_notification_wait
*wait_entry
);
509 #define IWL_CMD(x) case x: return #x
510 #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
512 #define IWL_TRAFFIC_ENTRIES (256)
513 #define IWL_TRAFFIC_ENTRY_SIZE (64)
515 /*****************************************************
516 * DRIVER STATUS FUNCTIONS
517 ******************************************************/
518 #define STATUS_HCMD_ACTIVE 0 /* host command in progress */
519 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
520 #define STATUS_INT_ENABLED 2
521 #define STATUS_RF_KILL_HW 3
522 #define STATUS_CT_KILL 4
523 #define STATUS_INIT 5
524 #define STATUS_ALIVE 6
525 #define STATUS_READY 7
526 #define STATUS_TEMPERATURE 8
527 #define STATUS_GEO_CONFIGURED 9
528 #define STATUS_EXIT_PENDING 10
529 #define STATUS_STATISTICS 12
530 #define STATUS_SCANNING 13
531 #define STATUS_SCAN_ABORTING 14
532 #define STATUS_SCAN_HW 15
533 #define STATUS_POWER_PMI 16
534 #define STATUS_FW_ERROR 17
535 #define STATUS_DEVICE_ENABLED 18
536 #define STATUS_CHANNEL_SWITCH_PENDING 19
537 #define STATUS_SCAN_COMPLETE 20
539 static inline int iwl_is_ready(struct iwl_shared
*shrd
)
541 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
542 * set but EXIT_PENDING is not */
543 return test_bit(STATUS_READY
, &shrd
->status
) &&
544 test_bit(STATUS_GEO_CONFIGURED
, &shrd
->status
) &&
545 !test_bit(STATUS_EXIT_PENDING
, &shrd
->status
);
548 static inline int iwl_is_alive(struct iwl_shared
*shrd
)
550 return test_bit(STATUS_ALIVE
, &shrd
->status
);
553 static inline int iwl_is_init(struct iwl_shared
*shrd
)
555 return test_bit(STATUS_INIT
, &shrd
->status
);
558 static inline int iwl_is_rfkill_hw(struct iwl_shared
*shrd
)
560 return test_bit(STATUS_RF_KILL_HW
, &shrd
->status
);
563 static inline int iwl_is_rfkill(struct iwl_shared
*shrd
)
565 return iwl_is_rfkill_hw(shrd
);
568 static inline int iwl_is_ctkill(struct iwl_shared
*shrd
)
570 return test_bit(STATUS_CT_KILL
, &shrd
->status
);
573 static inline int iwl_is_ready_rf(struct iwl_shared
*shrd
)
575 if (iwl_is_rfkill(shrd
))
578 return iwl_is_ready(shrd
);
581 #endif /* #__iwl_shared_h__ */