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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  25  * in the file called LICENSE.GPL.
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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  * @disable_11n: disable 11n capabilities, default = 0,
 119  *      use IWL_DISABLE_HT_* constants
 120  * @amsdu_size_8K: enable 8K amsdu size, default = 1
 121  * @antenna: both antennas (use diversity), default = 0
 122  * @restart_fw: restart firmware, default = 1
 123  * @plcp_check: enable plcp health check, default = true
 124  * @ack_check: disable ack health check, default = false
 125  * @wd_disable: enable stuck queue check, default = 0
 126  * @bt_coex_active: enable bt coex, default = true
 127  * @led_mode: system default, default = 0
 128  * @no_sleep_autoadjust: disable autoadjust, default = true
 129  * @power_save: disable power save, default = false
 130  * @power_level: power level, default = 1
 131  * @debug_level: levels are IWL_DL_*
 132  * @ant_coupling: antenna coupling in dB, default = 0
 133  * @bt_ch_announce: BT channel inhibition, default = enable
 134  * @wanted_ucode_alternative: ucode alternative to use, default = 1
 135  * @auto_agg: enable agg. without check, default = true
 136  */
 137 struct iwl_mod_params {
 138         int sw_crypto;
 139         unsigned int disable_11n;
 140         int amsdu_size_8K;
 141         int antenna;
 142         int restart_fw;
 143         bool plcp_check;
 144         bool ack_check;
 145         int  wd_disable;
 146         bool bt_coex_active;
 147         int led_mode;
 148         bool no_sleep_autoadjust;
 149         bool power_save;
 150         int power_level;
 151         u32 debug_level;
 152         int ant_coupling;
 153         bool bt_ch_announce;
 154         int wanted_ucode_alternative;
 155         bool auto_agg;
 156 };
 157
 158 /**
 159  * struct iwl_hw_params
 160  *
 161  * Holds the module parameters
 162  *
 163  * @num_ampdu_queues: num of ampdu queues
 164  * @tx_chains_num: Number of TX chains
 165  * @rx_chains_num: Number of RX chains
 166  * @valid_tx_ant: usable antennas for TX
 167  * @valid_rx_ant: usable antennas for RX
 168  * @ht40_channel: is 40MHz width possible: BIT(IEEE80211_BAND_XXX)
 169  * @sku: sku read from EEPROM
 170  * @rx_page_order: Rx buffer page order
 171  * @ct_kill_threshold: temperature threshold - in hw dependent unit
 172  * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
 173  *      relevant for 1000, 6000 and up
 174  * @wd_timeout: TX queues watchdog timeout
 175  * @struct iwl_sensitivity_ranges: range of sensitivity values
 176  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 177  */
 178 struct iwl_hw_params {
 179         u8  num_ampdu_queues;
 180         u8  tx_chains_num;
 181         u8  rx_chains_num;
 182         u8  valid_tx_ant;
 183         u8  valid_rx_ant;
 184         u8  ht40_channel;
 185         bool use_rts_for_aggregation;
 186         u16 sku;
 187         u32 rx_page_order;
 188         u32 ct_kill_threshold;
 189         u32 ct_kill_exit_threshold;
 190         unsigned int wd_timeout;
 191
 192         const struct iwl_sensitivity_ranges *sens;
 193 };
 194
 195 /**
 196  * enum iwl_ucode_type
 197  *
 198  * The type of ucode currently loaded on the hardware.
 199  *
 200  * @IWL_UCODE_NONE: No ucode loaded
 201  * @IWL_UCODE_REGULAR: Normal runtime ucode
 202  * @IWL_UCODE_INIT: Initial ucode
 203  * @IWL_UCODE_WOWLAN: Wake on Wireless enabled ucode
 204  */
 205 enum iwl_ucode_type {
 206         IWL_UCODE_NONE,
 207         IWL_UCODE_REGULAR,
 208         IWL_UCODE_INIT,
 209         IWL_UCODE_WOWLAN,
 210 };
 211
 212 /*
 213  * LED mode
 214  *    IWL_LED_DEFAULT:  use device default
 215  *    IWL_LED_RF_STATE: turn LED on/off based on RF state
 216  *                      LED ON  = RF ON
 217  *                      LED OFF = RF OFF
 218  *    IWL_LED_BLINK:    adjust led blink rate based on blink table
 219  *    IWL_LED_DISABLE:  led disabled
 220  */
 221 enum iwl_led_mode {
 222         IWL_LED_DEFAULT,
 223         IWL_LED_RF_STATE,
 224         IWL_LED_BLINK,
 225         IWL_LED_DISABLE,
 226 };
 227
 228 /*
 229  * @max_ll_items: max number of OTP blocks
 230  * @shadow_ram_support: shadow support for OTP memory
 231  * @led_compensation: compensate on the led on/off time per HW according
 232  *      to the deviation to achieve the desired led frequency.
 233  *      The detail algorithm is described in iwl-led.c
 234  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 235  * @adv_thermal_throttle: support advance thermal throttle
 236  * @support_ct_kill_exit: support ct kill exit condition
 237  * @support_wimax_coexist: support wimax/wifi co-exist
 238  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 239  *      radio tuning when there is a high receiving plcp error rate
 240  * @chain_noise_scale: default chain noise scale used for gain computation
 241  * @wd_timeout: TX queues watchdog timeout
 242  * @max_event_log_size: size of event log buffer size for ucode event logging
 243  * @shadow_reg_enable: HW shadhow register bit
 244  * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
 245  * @no_idle_support: do not support idle mode
 246  * wd_disable: disable watchdog timer
 247  */
 248 struct iwl_base_params {
 249         int eeprom_size;
 250         int num_of_queues;      /* def: HW dependent */
 251         int num_of_ampdu_queues;/* def: HW dependent */
 252         /* for iwl_apm_init() */
 253         u32 pll_cfg_val;
 254
 255         const u16 max_ll_items;
 256         const bool shadow_ram_support;
 257         u16 led_compensation;
 258         bool adv_thermal_throttle;
 259         bool support_ct_kill_exit;
 260         const bool support_wimax_coexist;
 261         u8 plcp_delta_threshold;
 262         s32 chain_noise_scale;
 263         unsigned int wd_timeout;
 264         u32 max_event_log_size;
 265         const bool shadow_reg_enable;
 266         const bool hd_v2;
 267         const bool no_idle_support;
 268         const bool wd_disable;
 269 };
 270
 271 /*
 272  * @advanced_bt_coexist: support advanced bt coexist
 273  * @bt_init_traffic_load: specify initial bt traffic load
 274  * @bt_prio_boost: default bt priority boost value
 275  * @agg_time_limit: maximum number of uSec in aggregation
 276  * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
 277  */
 278 struct iwl_bt_params {
 279         bool advanced_bt_coexist;
 280         u8 bt_init_traffic_load;
 281         u8 bt_prio_boost;
 282         u16 agg_time_limit;
 283         bool bt_sco_disable;
 284         bool bt_session_2;
 285 };
 286 /*
 287  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 288  */
 289 struct iwl_ht_params {
 290         const bool ht_greenfield_support; /* if used set to true */
 291         bool use_rts_for_aggregation;
 292         enum ieee80211_smps_mode smps_mode;
 293 };
 294
 295 /**
 296  * struct iwl_cfg
 297  * @name: Offical name of the device
 298  * @fw_name_pre: Firmware filename prefix. The api version and extension
 299  *      (.ucode) will be added to filename before loading from disk. The
 300  *      filename is constructed as fw_name_pre<api>.ucode.
 301  * @ucode_api_max: Highest version of uCode API supported by driver.
 302  * @ucode_api_ok: oldest version of the uCode API that is OK to load
 303  *      without a warning, for use in transitions
 304  * @ucode_api_min: Lowest version of uCode API supported by driver.
 305  * @max_inst_size: The maximal length of the fw inst section
 306  * @max_data_size: The maximal length of the fw data section
 307  * @valid_tx_ant: valid transmit antenna
 308  * @valid_rx_ant: valid receive antenna
 309  * @eeprom_ver: EEPROM version
 310  * @eeprom_calib_ver: EEPROM calibration version
 311  * @lib: pointer to the lib ops
 312  * @additional_nic_config: additional nic configuration
 313  * @base_params: pointer to basic parameters
 314  * @ht_params: point to ht patameters
 315  * @bt_params: pointer to bt parameters
 316  * @need_temp_offset_calib: need to perform temperature offset calibration
 317  * @no_xtal_calib: some devices do not need crystal calibration data,
 318  *      don't send it to those
 319  * @scan_rx_antennas: available antenna for scan operation
 320  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
 321  * @adv_pm: advance power management
 322  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
 323  * @internal_wimax_coex: internal wifi/wimax combo device
 324  * @iq_invert: I/Q inversion
 325  * @temp_offset_v2: support v2 of temperature offset calibration
 326  *
 327  * We enable the driver to be backward compatible wrt API version. The
 328  * driver specifies which APIs it supports (with @ucode_api_max being the
 329  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 330  * it has a supported API version.
 331  *
 332  * The ideal usage of this infrastructure is to treat a new ucode API
 333  * release as a new hardware revision.
 334  */
 335 struct iwl_cfg {
 336         /* params specific to an individual device within a device family */
 337         const char *name;
 338         const char *fw_name_pre;
 339         const unsigned int ucode_api_max;
 340         const unsigned int ucode_api_ok;
 341         const unsigned int ucode_api_min;
 342         const u32 max_data_size;
 343         const u32 max_inst_size;
 344         u8   valid_tx_ant;
 345         u8   valid_rx_ant;
 346         u16  eeprom_ver;
 347         u16  eeprom_calib_ver;
 348         const struct iwl_lib_ops *lib;
 349         void (*additional_nic_config)(struct iwl_priv *priv);
 350         /* params not likely to change within a device family */
 351         const struct iwl_base_params *base_params;
 352         /* params likely to change within a device family */
 353         const struct iwl_ht_params *ht_params;
 354         const struct iwl_bt_params *bt_params;
 355         const bool need_temp_offset_calib; /* if used set to true */
 356         const bool no_xtal_calib;
 357         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 358         enum iwl_led_mode led_mode;
 359         const bool adv_pm;
 360         const bool rx_with_siso_diversity;
 361         const bool internal_wimax_coex;
 362         const bool iq_invert;
 363         const bool temp_offset_v2;
 364 };
 365
 366 /**
 367  * struct iwl_shared - shared fields for all the layers of the driver
 368  *
 369  * @status: STATUS_*
 370  * @wowlan: are we running wowlan uCode
 371  * @valid_contexts: microcode/device supports multiple contexts
 372  * @bus: pointer to the bus layer data
 373  * @cfg: see struct iwl_cfg
 374  * @priv: pointer to the upper layer data
 375  * @trans: pointer to the transport layer data
 376  * @nic: pointer to the nic data
 377  * @hw_params: see struct iwl_hw_params
 378  * @lock: protect general shared data
 379  * @eeprom: pointer to the eeprom/OTP image
 380  * @ucode_type: indicator of loaded ucode image
 381  * @device_pointers: pointers to ucode event tables
 382  */
 383 struct iwl_shared {
 384         unsigned long status;
 385         u8 valid_contexts;
 386
 387         const struct iwl_cfg *cfg;
 388         struct iwl_trans *trans;
 389         void *drv;
 390         struct iwl_hw_params hw_params;
 391         const struct iwl_fw *fw;
 392
 393         /* eeprom -- this is in the card's little endian byte order */
 394         u8 *eeprom;
 395
 396         /* ucode related variables */
 397         enum iwl_ucode_type ucode_type;
 398
 399         struct {
 400                 u32 error_event_table;
 401                 u32 log_event_table;
 402         } device_pointers;
 403
 404 };
 405
 406 /*Whatever _m is (iwl_trans, iwl_priv, these macros will work */
 407 #define cfg(_m)         ((_m)->shrd->cfg)
 408 #define trans(_m)       ((_m)->shrd->trans)
 409 #define hw_params(_m)   ((_m)->shrd->hw_params)
 410
 411 static inline bool iwl_have_debug_level(u32 level)
 412 {
 413         return iwlagn_mod_params.debug_level & level;
 414 }
 415
 416 enum iwl_rxon_context_id {
 417         IWL_RXON_CTX_BSS,
 418         IWL_RXON_CTX_PAN,
 419
 420         NUM_IWL_RXON_CTX
 421 };
 422
 423 int iwlagn_hw_valid_rtc_data_addr(u32 addr);
 424 const char *get_cmd_string(u8 cmd);
 425
 426 #define IWL_CMD(x) case x: return #x
 427
 428 /*****************************************************
 429 * DRIVER STATUS FUNCTIONS
 430 ******************************************************/
 431 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 432 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 433 #define STATUS_INT_ENABLED      2
 434 #define STATUS_RF_KILL_HW       3
 435 #define STATUS_CT_KILL          4
 436 #define STATUS_INIT             5
 437 #define STATUS_ALIVE            6
 438 #define STATUS_READY            7
 439 #define STATUS_TEMPERATURE      8
 440 #define STATUS_GEO_CONFIGURED   9
 441 #define STATUS_EXIT_PENDING     10
 442 #define STATUS_STATISTICS       12
 443 #define STATUS_SCANNING         13
 444 #define STATUS_SCAN_ABORTING    14
 445 #define STATUS_SCAN_HW          15
 446 #define STATUS_POWER_PMI        16
 447 #define STATUS_FW_ERROR         17
 448 #define STATUS_DEVICE_ENABLED   18
 449 #define STATUS_CHANNEL_SWITCH_PENDING 19
 450 #define STATUS_SCAN_COMPLETE    20
 451
 452 #endif /* #__iwl_shared_h__ */