drivers/net/wireless/iwlwifi/iwl-shared.h

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   8  * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
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  28  *  Intel Linux Wireless <ilw@linux.intel.com>
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  63 #ifndef __iwl_shared_h__
  64 #define __iwl_shared_h__
  65
  66 #include <linux/types.h>
  67 #include <linux/spinlock.h>
  68 #include <linux/gfp.h>
  69 #include <net/mac80211.h>
  70
  71 #include "iwl-commands.h"
  72 #include "iwl-fw.h"
  73
  74 /**
  75  * DOC: shared area - role and goal
  76  *
  77  * The shared area contains all the data exported by the upper layer to the
  78  * other layers. Since the bus and transport layer shouldn't dereference
  79  * iwl_priv, all the data needed by the upper layer and the transport / bus
  80  * layer must be here.
  81  * The shared area also holds pointer to all the other layers. This allows a
  82  * layer to call a function from another layer.
  83  *
  84  * NOTE: All the layers hold a pointer to the shared area which must be shrd.
  85  *      A few macros assume that (_m)->shrd points to the shared area no matter
  86  *      what _m is.
  87  *
  88  * gets notifications about enumeration, suspend, resume.
  89  * For the moment, the bus layer is not a linux kernel module as itself, and
  90  * the module_init function of the driver must call the bus specific
  91  * registration functions. These functions are listed at the end of this file.
  92  * For the moment, there is only one implementation of this interface: PCI-e.
  93  * This implementation is iwl-pci.c
  94  */
  95
  96 struct iwl_priv;
  97 struct iwl_trans;
  98 struct iwl_sensitivity_ranges;
  99 struct iwl_trans_ops;
 100
 101 #define DRV_NAME        "iwlwifi"
 102 #define IWLWIFI_VERSION "in-tree:"
 103 #define DRV_COPYRIGHT   "Copyright(c) 2003-2012 Intel Corporation"
 104 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
 105
 106 extern struct iwl_mod_params iwlagn_mod_params;
 107
 108 #define IWL_DISABLE_HT_ALL      BIT(0)
 109 #define IWL_DISABLE_HT_TXAGG    BIT(1)
 110 #define IWL_DISABLE_HT_RXAGG    BIT(2)
 111
 112 /**
 113  * struct iwl_mod_params
 114  *
 115  * Holds the module parameters
 116  *
 117  * @sw_crypto: using hardware encryption, default = 0
 118  * @num_of_queues: number of tx queue, HW dependent
 119  * @disable_11n: disable 11n capabilities, default = 0,
 120  *      use IWL_DISABLE_HT_* constants
 121  * @amsdu_size_8K: enable 8K amsdu size, default = 1
 122  * @antenna: both antennas (use diversity), default = 0
 123  * @restart_fw: restart firmware, default = 1
 124  * @plcp_check: enable plcp health check, default = true
 125  * @ack_check: disable ack health check, default = false
 126  * @wd_disable: enable stuck queue check, default = 0
 127  * @bt_coex_active: enable bt coex, default = true
 128  * @led_mode: system default, default = 0
 129  * @no_sleep_autoadjust: disable autoadjust, default = true
 130  * @power_save: disable power save, default = false
 131  * @power_level: power level, default = 1
 132  * @debug_level: levels are IWL_DL_*
 133  * @ant_coupling: antenna coupling in dB, default = 0
 134  * @bt_ch_announce: BT channel inhibition, default = enable
 135  * @wanted_ucode_alternative: ucode alternative to use, default = 1
 136  * @auto_agg: enable agg. without check, default = true
 137  */
 138 struct iwl_mod_params {
 139         int sw_crypto;
 140         int num_of_queues;
 141         unsigned int disable_11n;
 142         int amsdu_size_8K;
 143         int antenna;
 144         int restart_fw;
 145         bool plcp_check;
 146         bool ack_check;
 147         int  wd_disable;
 148         bool bt_coex_active;
 149         int led_mode;
 150         bool no_sleep_autoadjust;
 151         bool power_save;
 152         int power_level;
 153         u32 debug_level;
 154         int ant_coupling;
 155         bool bt_ch_announce;
 156         int wanted_ucode_alternative;
 157         bool auto_agg;
 158 };
 159
 160 /**
 161  * struct iwl_hw_params
 162  *
 163  * Holds the module parameters
 164  *
 165  * @max_txq_num: Max # Tx queues supported
 166  * @num_ampdu_queues: num of ampdu queues
 167  * @tx_chains_num: Number of TX chains
 168  * @rx_chains_num: Number of RX chains
 169  * @valid_tx_ant: usable antennas for TX
 170  * @valid_rx_ant: usable antennas for RX
 171  * @ht40_channel: is 40MHz width possible: BIT(IEEE80211_BAND_XXX)
 172  * @sku: sku read from EEPROM
 173  * @rx_page_order: Rx buffer page order
 174  * @ct_kill_threshold: temperature threshold - in hw dependent unit
 175  * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
 176  *      relevant for 1000, 6000 and up
 177  * @wd_timeout: TX queues watchdog timeout
 178  * @struct iwl_sensitivity_ranges: range of sensitivity values
 179  */
 180 struct iwl_hw_params {
 181         u8  max_txq_num;
 182         u8  num_ampdu_queues;
 183         u8  tx_chains_num;
 184         u8  rx_chains_num;
 185         u8  valid_tx_ant;
 186         u8  valid_rx_ant;
 187         u8  ht40_channel;
 188         u16 sku;
 189         u32 rx_page_order;
 190         u32 ct_kill_threshold;
 191         u32 ct_kill_exit_threshold;
 192         unsigned int wd_timeout;
 193
 194         const struct iwl_sensitivity_ranges *sens;
 195 };
 196
 197 /**
 198  * enum iwl_ucode_type
 199  *
 200  * The type of ucode currently loaded on the hardware.
 201  *
 202  * @IWL_UCODE_NONE: No ucode loaded
 203  * @IWL_UCODE_REGULAR: Normal runtime ucode
 204  * @IWL_UCODE_INIT: Initial ucode
 205  * @IWL_UCODE_WOWLAN: Wake on Wireless enabled ucode
 206  */
 207 enum iwl_ucode_type {
 208         IWL_UCODE_NONE,
 209         IWL_UCODE_REGULAR,
 210         IWL_UCODE_INIT,
 211         IWL_UCODE_WOWLAN,
 212 };
 213
 214 /**
 215  * struct iwl_notification_wait - notification wait entry
 216  * @list: list head for global list
 217  * @fn: function called with the notification
 218  * @cmd: command ID
 219  *
 220  * This structure is not used directly, to wait for a
 221  * notification declare it on the stack, and call
 222  * iwlagn_init_notification_wait() with appropriate
 223  * parameters. Then do whatever will cause the ucode
 224  * to notify the driver, and to wait for that then
 225  * call iwlagn_wait_notification().
 226  *
 227  * Each notification is one-shot. If at some point we
 228  * need to support multi-shot notifications (which
 229  * can't be allocated on the stack) we need to modify
 230  * the code for them.
 231  */
 232 struct iwl_notification_wait {
 233         struct list_head list;
 234
 235         void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
 236                    void *data);
 237         void *fn_data;
 238
 239         u8 cmd;
 240         bool triggered, aborted;
 241 };
 242
 243 /**
 244  * enum iwl_pa_type - Power Amplifier type
 245  * @IWL_PA_SYSTEM:  based on uCode configuration
 246  * @IWL_PA_INTERNAL: use Internal only
 247  */
 248 enum iwl_pa_type {
 249         IWL_PA_SYSTEM = 0,
 250         IWL_PA_INTERNAL = 1,
 251 };
 252
 253 /*
 254  * LED mode
 255  *    IWL_LED_DEFAULT:  use device default
 256  *    IWL_LED_RF_STATE: turn LED on/off based on RF state
 257  *                      LED ON  = RF ON
 258  *                      LED OFF = RF OFF
 259  *    IWL_LED_BLINK:    adjust led blink rate based on blink table
 260  *    IWL_LED_DISABLE:  led disabled
 261  */
 262 enum iwl_led_mode {
 263         IWL_LED_DEFAULT,
 264         IWL_LED_RF_STATE,
 265         IWL_LED_BLINK,
 266         IWL_LED_DISABLE,
 267 };
 268
 269 /*
 270  * @max_ll_items: max number of OTP blocks
 271  * @shadow_ram_support: shadow support for OTP memory
 272  * @led_compensation: compensate on the led on/off time per HW according
 273  *      to the deviation to achieve the desired led frequency.
 274  *      The detail algorithm is described in iwl-led.c
 275  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 276  * @adv_thermal_throttle: support advance thermal throttle
 277  * @support_ct_kill_exit: support ct kill exit condition
 278  * @support_wimax_coexist: support wimax/wifi co-exist
 279  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 280  *      radio tuning when there is a high receiving plcp error rate
 281  * @chain_noise_scale: default chain noise scale used for gain computation
 282  * @wd_timeout: TX queues watchdog timeout
 283  * @max_event_log_size: size of event log buffer size for ucode event logging
 284  * @shadow_reg_enable: HW shadhow register bit
 285  * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
 286  * @no_idle_support: do not support idle mode
 287  * wd_disable: disable watchdog timer
 288  */
 289 struct iwl_base_params {
 290         int eeprom_size;
 291         int num_of_queues;      /* def: HW dependent */
 292         int num_of_ampdu_queues;/* def: HW dependent */
 293         /* for iwl_apm_init() */
 294         u32 pll_cfg_val;
 295
 296         const u16 max_ll_items;
 297         const bool shadow_ram_support;
 298         u16 led_compensation;
 299         bool adv_thermal_throttle;
 300         bool support_ct_kill_exit;
 301         const bool support_wimax_coexist;
 302         u8 plcp_delta_threshold;
 303         s32 chain_noise_scale;
 304         unsigned int wd_timeout;
 305         u32 max_event_log_size;
 306         const bool shadow_reg_enable;
 307         const bool hd_v2;
 308         const bool no_idle_support;
 309         const bool wd_disable;
 310 };
 311
 312 /**
 313  * struct iwl_cfg
 314  * @name: Offical name of the device
 315  * @fw_name_pre: Firmware filename prefix. The api version and extension
 316  *      (.ucode) will be added to filename before loading from disk. The
 317  *      filename is constructed as fw_name_pre<api>.ucode.
 318  * @ucode_api_max: Highest version of uCode API supported by driver.
 319  * @ucode_api_ok: oldest version of the uCode API that is OK to load
 320  *      without a warning, for use in transitions
 321  * @ucode_api_min: Lowest version of uCode API supported by driver.
 322  * @max_inst_size: The maximal length of the fw inst section
 323  * @max_data_size: The maximal length of the fw data section
 324  * @valid_tx_ant: valid transmit antenna
 325  * @valid_rx_ant: valid receive antenna
 326  * @eeprom_ver: EEPROM version
 327  * @eeprom_calib_ver: EEPROM calibration version
 328  * @lib: pointer to the lib ops
 329  * @additional_nic_config: additional nic configuration
 330  * @base_params: pointer to basic parameters
 331  * @ht_params: point to ht patameters
 332  * @bt_params: pointer to bt parameters
 333  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 334  * @need_temp_offset_calib: need to perform temperature offset calibration
 335  * @no_xtal_calib: some devices do not need crystal calibration data,
 336  *      don't send it to those
 337  * @scan_rx_antennas: available antenna for scan operation
 338  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
 339  * @adv_pm: advance power management
 340  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
 341  * @internal_wimax_coex: internal wifi/wimax combo device
 342  * @iq_invert: I/Q inversion
 343  * @temp_offset_v2: support v2 of temperature offset calibration
 344  *
 345  * We enable the driver to be backward compatible wrt API version. The
 346  * driver specifies which APIs it supports (with @ucode_api_max being the
 347  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 348  * it has a supported API version.
 349  *
 350  * The ideal usage of this infrastructure is to treat a new ucode API
 351  * release as a new hardware revision.
 352  */
 353 struct iwl_cfg {
 354         /* params specific to an individual device within a device family */
 355         const char *name;
 356         const char *fw_name_pre;
 357         const unsigned int ucode_api_max;
 358         const unsigned int ucode_api_ok;
 359         const unsigned int ucode_api_min;
 360         const u32 max_data_size;
 361         const u32 max_inst_size;
 362         u8   valid_tx_ant;
 363         u8   valid_rx_ant;
 364         u16  eeprom_ver;
 365         u16  eeprom_calib_ver;
 366         const struct iwl_lib_ops *lib;
 367         void (*additional_nic_config)(struct iwl_priv *priv);
 368         /* params not likely to change within a device family */
 369         struct iwl_base_params *base_params;
 370         /* params likely to change within a device family */
 371         struct iwl_ht_params *ht_params;
 372         struct iwl_bt_params *bt_params;
 373         enum iwl_pa_type pa_type;         /* if used set to IWL_PA_SYSTEM */
 374         const bool need_temp_offset_calib; /* if used set to true */
 375         const bool no_xtal_calib;
 376         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 377         enum iwl_led_mode led_mode;
 378         const bool adv_pm;
 379         const bool rx_with_siso_diversity;
 380         const bool internal_wimax_coex;
 381         const bool iq_invert;
 382         const bool temp_offset_v2;
 383 };
 384
 385 /**
 386  * struct iwl_shared - shared fields for all the layers of the driver
 387  *
 388  * @ucode_owner: IWL_OWNERSHIP_*
 389  * @cmd_queue: command queue number
 390  * @status: STATUS_*
 391  * @wowlan: are we running wowlan uCode
 392  * @valid_contexts: microcode/device supports multiple contexts
 393  * @bus: pointer to the bus layer data
 394  * @cfg: see struct iwl_cfg
 395  * @priv: pointer to the upper layer data
 396  * @trans: pointer to the transport layer data
 397  * @nic: pointer to the nic data
 398  * @hw_params: see struct iwl_hw_params
 399  * @lock: protect general shared data
 400  * @wait_command_queue: the wait_queue for SYNC host command nad uCode load
 401  * @eeprom: pointer to the eeprom/OTP image
 402  * @ucode_type: indicator of loaded ucode image
 403  * @notif_waits: things waiting for notification
 404  * @notif_wait_lock: lock protecting notification
 405  * @notif_waitq: head of notification wait queue
 406  * @device_pointers: pointers to ucode event tables
 407  */
 408 struct iwl_shared {
 409 #define IWL_OWNERSHIP_DRIVER    0
 410 #define IWL_OWNERSHIP_TM        1
 411         u8 ucode_owner;
 412         u8 cmd_queue;
 413         unsigned long status;
 414         u8 valid_contexts;
 415
 416         const struct iwl_cfg *cfg;
 417         struct iwl_priv *priv;
 418         struct iwl_trans *trans;
 419         void *drv;
 420         struct iwl_hw_params hw_params;
 421         const struct iwl_fw *fw;
 422
 423         wait_queue_head_t wait_command_queue;
 424
 425         /* eeprom -- this is in the card's little endian byte order */
 426         u8 *eeprom;
 427
 428         /* ucode related variables */
 429         enum iwl_ucode_type ucode_type;
 430
 431         /* notification wait support */
 432         struct list_head notif_waits;
 433         spinlock_t notif_wait_lock;
 434         wait_queue_head_t notif_waitq;
 435
 436         struct {
 437                 u32 error_event_table;
 438                 u32 log_event_table;
 439         } device_pointers;
 440
 441 };
 442
 443 /*Whatever _m is (iwl_trans, iwl_priv, these macros will work */
 444 #define priv(_m)        ((_m)->shrd->priv)
 445 #define cfg(_m)         ((_m)->shrd->cfg)
 446 #define trans(_m)       ((_m)->shrd->trans)
 447 #define hw_params(_m)   ((_m)->shrd->hw_params)
 448
 449 static inline bool iwl_have_debug_level(u32 level)
 450 {
 451         return iwlagn_mod_params.debug_level & level;
 452 }
 453
 454 enum iwl_rxon_context_id {
 455         IWL_RXON_CTX_BSS,
 456         IWL_RXON_CTX_PAN,
 457
 458         NUM_IWL_RXON_CTX
 459 };
 460
 461 int iwlagn_hw_valid_rtc_data_addr(u32 addr);
 462 void iwl_nic_config(struct iwl_priv *priv);
 463 const char *get_cmd_string(u8 cmd);
 464 bool iwl_check_for_ct_kill(struct iwl_priv *priv);
 465
 466
 467 /* notification wait support */
 468 void iwl_abort_notification_waits(struct iwl_shared *shrd);
 469 void __acquires(wait_entry)
 470 iwl_init_notification_wait(struct iwl_shared *shrd,
 471                            struct iwl_notification_wait *wait_entry,
 472                            u8 cmd,
 473                            void (*fn)(struct iwl_priv *priv,
 474                                       struct iwl_rx_packet *pkt,
 475                                       void *data),
 476                            void *fn_data);
 477 int __must_check __releases(wait_entry)
 478 iwl_wait_notification(struct iwl_shared *shrd,
 479                          struct iwl_notification_wait *wait_entry,
 480                          unsigned long timeout);
 481 void __releases(wait_entry)
 482 iwl_remove_notification(struct iwl_shared *shrd,
 483                            struct iwl_notification_wait *wait_entry);
 484
 485 #define IWL_CMD(x) case x: return #x
 486
 487 /*****************************************************
 488 * DRIVER STATUS FUNCTIONS
 489 ******************************************************/
 490 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 491 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 492 #define STATUS_INT_ENABLED      2
 493 #define STATUS_RF_KILL_HW       3
 494 #define STATUS_CT_KILL          4
 495 #define STATUS_INIT             5
 496 #define STATUS_ALIVE            6
 497 #define STATUS_READY            7
 498 #define STATUS_TEMPERATURE      8
 499 #define STATUS_GEO_CONFIGURED   9
 500 #define STATUS_EXIT_PENDING     10
 501 #define STATUS_STATISTICS       12
 502 #define STATUS_SCANNING         13
 503 #define STATUS_SCAN_ABORTING    14
 504 #define STATUS_SCAN_HW          15
 505 #define STATUS_POWER_PMI        16
 506 #define STATUS_FW_ERROR         17
 507 #define STATUS_DEVICE_ENABLED   18
 508 #define STATUS_CHANNEL_SWITCH_PENDING 19
 509 #define STATUS_SCAN_COMPLETE    20
 510
 511 #endif /* #__iwl_shared_h__ */