*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
+ * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
*
* BSD LICENSE
*
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <linux/types.h>
#include <linux/spinlock.h>
-#include <linux/mutex.h>
#include <linux/gfp.h>
-#include <linux/mm.h> /* for page_address */
#include <net/mac80211.h>
#include "iwl-commands.h"
+#include "iwl-fw.h"
/**
* DOC: shared area - role and goal
* This implementation is iwl-pci.c
*/
-struct iwl_cfg;
-struct iwl_bus;
struct iwl_priv;
+struct iwl_trans;
struct iwl_sensitivity_ranges;
struct iwl_trans_ops;
#define DRV_NAME "iwlwifi"
#define IWLWIFI_VERSION "in-tree:"
-#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
+#define DRV_COPYRIGHT "Copyright(c) 2003-2012 Intel Corporation"
#define DRV_AUTHOR "<ilw@linux.intel.com>"
extern struct iwl_mod_params iwlagn_mod_params;
+#define IWL_DISABLE_HT_ALL BIT(0)
+#define IWL_DISABLE_HT_TXAGG BIT(1)
+#define IWL_DISABLE_HT_RXAGG BIT(2)
+
/**
* struct iwl_mod_params
*
* Holds the module parameters
*
* @sw_crypto: using hardware encryption, default = 0
- * @num_of_queues: number of tx queue, HW dependent
- * @disable_11n: 11n capabilities enabled, default = 0
+ * @disable_11n: disable 11n capabilities, default = 0,
+ * use IWL_DISABLE_HT_* constants
* @amsdu_size_8K: enable 8K amsdu size, default = 1
* @antenna: both antennas (use diversity), default = 0
* @restart_fw: restart firmware, default = 1
*/
struct iwl_mod_params {
int sw_crypto;
- int num_of_queues;
- int disable_11n;
+ unsigned int disable_11n;
int amsdu_size_8K;
int antenna;
int restart_fw;
* @ht40_channel: is 40MHz width possible: BIT(IEEE80211_BAND_XXX)
* @sku: sku read from EEPROM
* @rx_page_order: Rx buffer page order
- * @max_inst_size: for ucode use
- * @max_data_size: for ucode use
* @ct_kill_threshold: temperature threshold - in hw dependent unit
* @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit
* relevant for 1000, 6000 and up
* @wd_timeout: TX queues watchdog timeout
- * @calib_init_cfg: setup initial calibrations for the hw
- * @calib_rt_cfg: setup runtime calibrations for the hw
* @struct iwl_sensitivity_ranges: range of sensitivity values
+ * @use_rts_for_aggregation: use rts/cts protection for HT traffic
*/
struct iwl_hw_params {
u8 max_txq_num;
u8 valid_tx_ant;
u8 valid_rx_ant;
u8 ht40_channel;
- bool shadow_reg_enable;
+ bool use_rts_for_aggregation;
u16 sku;
u32 rx_page_order;
- u32 max_inst_size;
- u32 max_data_size;
u32 ct_kill_threshold;
u32 ct_kill_exit_threshold;
unsigned int wd_timeout;
- u32 calib_init_cfg;
- u32 calib_rt_cfg;
const struct iwl_sensitivity_ranges *sens;
};
/**
- * enum iwl_agg_state
+ * enum iwl_ucode_type
*
- * The state machine of the BA agreement establishment / tear down.
- * These states relate to a specific RA / TID.
+ * The type of ucode currently loaded on the hardware.
*
- * @IWL_AGG_OFF: aggregation is not used
- * @IWL_AGG_ON: aggregation session is up
- * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
- * HW queue to be empty from packets for this RA /TID.
- * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
- * HW queue to be empty from packets for this RA /TID.
+ * @IWL_UCODE_NONE: No ucode loaded
+ * @IWL_UCODE_REGULAR: Normal runtime ucode
+ * @IWL_UCODE_INIT: Initial ucode
+ * @IWL_UCODE_WOWLAN: Wake on Wireless enabled ucode
*/
-enum iwl_agg_state {
- IWL_AGG_OFF = 0,
- IWL_AGG_ON,
- IWL_EMPTYING_HW_QUEUE_ADDBA,
- IWL_EMPTYING_HW_QUEUE_DELBA,
+enum iwl_ucode_type {
+ IWL_UCODE_NONE,
+ IWL_UCODE_REGULAR,
+ IWL_UCODE_INIT,
+ IWL_UCODE_WOWLAN,
};
/**
- * struct iwl_ht_agg - aggregation state machine
+ * enum iwl_pa_type - Power Amplifier type
+ * @IWL_PA_SYSTEM: based on uCode configuration
+ * @IWL_PA_INTERNAL: use Internal only
+ */
+enum iwl_pa_type {
+ IWL_PA_SYSTEM = 0,
+ IWL_PA_INTERNAL = 1,
+};
- * This structs holds the states for the BA agreement establishment and tear
- * down. It also holds the state during the BA session itself. This struct is
- * duplicated for each RA / TID.
+/*
+ * LED mode
+ * IWL_LED_DEFAULT: use device default
+ * IWL_LED_RF_STATE: turn LED on/off based on RF state
+ * LED ON = RF ON
+ * LED OFF = RF OFF
+ * IWL_LED_BLINK: adjust led blink rate based on blink table
+ * IWL_LED_DISABLE: led disabled
+ */
+enum iwl_led_mode {
+ IWL_LED_DEFAULT,
+ IWL_LED_RF_STATE,
+ IWL_LED_BLINK,
+ IWL_LED_DISABLE,
+};
- * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
- * Tx response (REPLY_TX), and the block ack notification
- * (REPLY_COMPRESSED_BA).
- * @state: state of the BA agreement establishment / tear down.
- * @txq_id: Tx queue used by the BA session - used by the transport layer.
- * Needed by the upper layer for debugfs only.
- * @wait_for_ba: Expect block-ack before next Tx reply
+/*
+ * @max_ll_items: max number of OTP blocks
+ * @shadow_ram_support: shadow support for OTP memory
+ * @led_compensation: compensate on the led on/off time per HW according
+ * to the deviation to achieve the desired led frequency.
+ * The detail algorithm is described in iwl-led.c
+ * @chain_noise_num_beacons: number of beacons used to compute chain noise
+ * @adv_thermal_throttle: support advance thermal throttle
+ * @support_ct_kill_exit: support ct kill exit condition
+ * @support_wimax_coexist: support wimax/wifi co-exist
+ * @plcp_delta_threshold: plcp error rate threshold used to trigger
+ * radio tuning when there is a high receiving plcp error rate
+ * @chain_noise_scale: default chain noise scale used for gain computation
+ * @wd_timeout: TX queues watchdog timeout
+ * @max_event_log_size: size of event log buffer size for ucode event logging
+ * @shadow_reg_enable: HW shadhow register bit
+ * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
+ * @no_idle_support: do not support idle mode
+ * wd_disable: disable watchdog timer
*/
-struct iwl_ht_agg {
- u32 rate_n_flags;
- enum iwl_agg_state state;
- u16 txq_id;
- bool wait_for_ba;
+struct iwl_base_params {
+ int eeprom_size;
+ int num_of_queues; /* def: HW dependent */
+ int num_of_ampdu_queues;/* def: HW dependent */
+ /* for iwl_apm_init() */
+ u32 pll_cfg_val;
+
+ const u16 max_ll_items;
+ const bool shadow_ram_support;
+ u16 led_compensation;
+ bool adv_thermal_throttle;
+ bool support_ct_kill_exit;
+ const bool support_wimax_coexist;
+ u8 plcp_delta_threshold;
+ s32 chain_noise_scale;
+ unsigned int wd_timeout;
+ u32 max_event_log_size;
+ const bool shadow_reg_enable;
+ const bool hd_v2;
+ const bool no_idle_support;
+ const bool wd_disable;
};
/**
- * struct iwl_tid_data - one for each RA / TID
-
- * This structs holds the states for each RA / TID.
-
- * @seq_number: the next WiFi sequence number to use
- * @tfds_in_queue: number of packets sent to the HW queues.
- * Exported for debugfs only
- * @agg: aggregation state machine
+ * struct iwl_cfg
+ * @name: Offical name of the device
+ * @fw_name_pre: Firmware filename prefix. The api version and extension
+ * (.ucode) will be added to filename before loading from disk. The
+ * filename is constructed as fw_name_pre<api>.ucode.
+ * @ucode_api_max: Highest version of uCode API supported by driver.
+ * @ucode_api_ok: oldest version of the uCode API that is OK to load
+ * without a warning, for use in transitions
+ * @ucode_api_min: Lowest version of uCode API supported by driver.
+ * @max_inst_size: The maximal length of the fw inst section
+ * @max_data_size: The maximal length of the fw data section
+ * @valid_tx_ant: valid transmit antenna
+ * @valid_rx_ant: valid receive antenna
+ * @eeprom_ver: EEPROM version
+ * @eeprom_calib_ver: EEPROM calibration version
+ * @lib: pointer to the lib ops
+ * @additional_nic_config: additional nic configuration
+ * @base_params: pointer to basic parameters
+ * @ht_params: point to ht patameters
+ * @bt_params: pointer to bt parameters
+ * @pa_type: used by 6000 series only to identify the type of Power Amplifier
+ * @need_temp_offset_calib: need to perform temperature offset calibration
+ * @no_xtal_calib: some devices do not need crystal calibration data,
+ * don't send it to those
+ * @scan_rx_antennas: available antenna for scan operation
+ * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
+ * @adv_pm: advance power management
+ * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
+ * @internal_wimax_coex: internal wifi/wimax combo device
+ * @iq_invert: I/Q inversion
+ * @temp_offset_v2: support v2 of temperature offset calibration
+ *
+ * We enable the driver to be backward compatible wrt API version. The
+ * driver specifies which APIs it supports (with @ucode_api_max being the
+ * highest and @ucode_api_min the lowest). Firmware will only be loaded if
+ * it has a supported API version.
+ *
+ * The ideal usage of this infrastructure is to treat a new ucode API
+ * release as a new hardware revision.
*/
-struct iwl_tid_data {
- u16 seq_number;
- u16 tfds_in_queue;
- struct iwl_ht_agg agg;
+struct iwl_cfg {
+ /* params specific to an individual device within a device family */
+ const char *name;
+ const char *fw_name_pre;
+ const unsigned int ucode_api_max;
+ const unsigned int ucode_api_ok;
+ const unsigned int ucode_api_min;
+ const u32 max_data_size;
+ const u32 max_inst_size;
+ u8 valid_tx_ant;
+ u8 valid_rx_ant;
+ u16 eeprom_ver;
+ u16 eeprom_calib_ver;
+ const struct iwl_lib_ops *lib;
+ void (*additional_nic_config)(struct iwl_priv *priv);
+ /* params not likely to change within a device family */
+ const struct iwl_base_params *base_params;
+ /* params likely to change within a device family */
+ const struct iwl_ht_params *ht_params;
+ const struct iwl_bt_params *bt_params;
+ enum iwl_pa_type pa_type; /* if used set to IWL_PA_SYSTEM */
+ const bool need_temp_offset_calib; /* if used set to true */
+ const bool no_xtal_calib;
+ u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
+ enum iwl_led_mode led_mode;
+ const bool adv_pm;
+ const bool rx_with_siso_diversity;
+ const bool internal_wimax_coex;
+ const bool iq_invert;
+ const bool temp_offset_v2;
};
/**
* struct iwl_shared - shared fields for all the layers of the driver
*
- * @dbg_level_dev: dbg level set per device. Prevails on
- * iwlagn_mod_params.debug_level if set (!= 0)
- * @ucode_owner: IWL_OWNERSHIP_*
* @cmd_queue: command queue number
* @status: STATUS_*
+ * @wowlan: are we running wowlan uCode
* @valid_contexts: microcode/device supports multiple contexts
* @bus: pointer to the bus layer data
+ * @cfg: see struct iwl_cfg
* @priv: pointer to the upper layer data
+ * @trans: pointer to the transport layer data
+ * @nic: pointer to the nic data
* @hw_params: see struct iwl_hw_params
- * @workqueue: the workqueue used by all the layers of the driver
* @lock: protect general shared data
- * @sta_lock: protects the station table.
- * If lock and sta_lock are needed, lock must be acquired first.
- * @mutex:
+ * @wait_command_queue: the wait_queue for SYNC host commands
+ * @eeprom: pointer to the eeprom/OTP image
+ * @ucode_type: indicator of loaded ucode image
+ * @device_pointers: pointers to ucode event tables
*/
struct iwl_shared {
-#ifdef CONFIG_IWLWIFI_DEBUG
- u32 dbg_level_dev;
-#endif /* CONFIG_IWLWIFI_DEBUG */
-
-#define IWL_OWNERSHIP_DRIVER 0
-#define IWL_OWNERSHIP_TM 1
- u8 ucode_owner;
u8 cmd_queue;
unsigned long status;
- bool wowlan;
u8 valid_contexts;
- struct iwl_bus *bus;
+ const struct iwl_cfg *cfg;
struct iwl_priv *priv;
struct iwl_trans *trans;
+ void *drv;
struct iwl_hw_params hw_params;
-
- struct workqueue_struct *workqueue;
- spinlock_t lock;
- spinlock_t sta_lock;
- struct mutex mutex;
-
- struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
+ const struct iwl_fw *fw;
wait_queue_head_t wait_command_queue;
-};
-
-/*Whatever _m is (iwl_trans, iwl_priv, iwl_bus, these macros will work */
-#define priv(_m) ((_m)->shrd->priv)
-#define bus(_m) ((_m)->shrd->bus)
-#define trans(_m) ((_m)->shrd->trans)
-#define hw_params(_m) ((_m)->shrd->hw_params)
-#ifdef CONFIG_IWLWIFI_DEBUG
-/*
- * iwl_get_debug_level: Return active debug level for device
- *
- * Using sysfs it is possible to set per device debug level. This debug
- * level will be used if set, otherwise the global debug level which can be
- * set via module parameter is used.
- */
-static inline u32 iwl_get_debug_level(struct iwl_shared *shrd)
-{
- if (shrd->dbg_level_dev)
- return shrd->dbg_level_dev;
- else
- return iwlagn_mod_params.debug_level;
-}
-#else
-static inline u32 iwl_get_debug_level(struct iwl_shared *shrd)
-{
- return iwlagn_mod_params.debug_level;
-}
-#endif
+ /* eeprom -- this is in the card's little endian byte order */
+ u8 *eeprom;
-static inline void iwl_free_pages(struct iwl_shared *shrd, unsigned long page)
-{
- free_pages(page, shrd->hw_params.rx_page_order);
-}
+ /* ucode related variables */
+ enum iwl_ucode_type ucode_type;
-/**
- * iwl_queue_inc_wrap - increment queue index, wrap back to beginning
- * @index -- current index
- * @n_bd -- total number of entries in queue (must be power of 2)
- */
-static inline int iwl_queue_inc_wrap(int index, int n_bd)
-{
- return ++index & (n_bd - 1);
-}
-
-/**
- * iwl_queue_dec_wrap - decrement queue index, wrap back to end
- * @index -- current index
- * @n_bd -- total number of entries in queue (must be power of 2)
- */
-static inline int iwl_queue_dec_wrap(int index, int n_bd)
-{
- return --index & (n_bd - 1);
-}
+ struct {
+ u32 error_event_table;
+ u32 log_event_table;
+ } device_pointers;
-struct iwl_rx_mem_buffer {
- dma_addr_t page_dma;
- struct page *page;
- struct list_head list;
};
-#define rxb_addr(r) page_address(r->page)
-
-/*
- * mac80211 queues, ACs, hardware queues, FIFOs.
- *
- * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
- *
- * Mac80211 uses the following numbers, which we get as from it
- * by way of skb_get_queue_mapping(skb):
- *
- * VO 0
- * VI 1
- * BE 2
- * BK 3
- *
- *
- * Regular (not A-MPDU) frames are put into hardware queues corresponding
- * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
- * own queue per aggregation session (RA/TID combination), such queues are
- * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
- * order to map frames to the right queue, we also need an AC->hw queue
- * mapping. This is implemented here.
- *
- * Due to the way hw queues are set up (by the hw specific modules like
- * iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity
- * mapping.
- */
-
-static const u8 tid_to_ac[] = {
- IEEE80211_AC_BE,
- IEEE80211_AC_BK,
- IEEE80211_AC_BK,
- IEEE80211_AC_BE,
- IEEE80211_AC_VI,
- IEEE80211_AC_VI,
- IEEE80211_AC_VO,
- IEEE80211_AC_VO
-};
+/*Whatever _m is (iwl_trans, iwl_priv, these macros will work */
+#define priv(_m) ((_m)->shrd->priv)
+#define cfg(_m) ((_m)->shrd->cfg)
+#define trans(_m) ((_m)->shrd->trans)
+#define hw_params(_m) ((_m)->shrd->hw_params)
-static inline int get_ac_from_tid(u16 tid)
+static inline bool iwl_have_debug_level(u32 level)
{
- if (likely(tid < ARRAY_SIZE(tid_to_ac)))
- return tid_to_ac[tid];
-
- /* no support for TIDs 8-15 yet */
- return -EINVAL;
+ return iwlagn_mod_params.debug_level & level;
}
enum iwl_rxon_context_id {
NUM_IWL_RXON_CTX
};
-int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
- struct iwl_cfg *cfg);
-void __devexit iwl_remove(struct iwl_priv * priv);
-struct iwl_device_cmd;
-int __must_check iwl_rx_dispatch(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd);
-
int iwlagn_hw_valid_rtc_data_addr(u32 addr);
-void iwl_start_tx_ba_trans_ready(struct iwl_priv *priv,
- enum iwl_rxon_context_id ctx,
- u8 sta_id, u8 tid);
-void iwl_stop_tx_ba_trans_ready(struct iwl_priv *priv,
- enum iwl_rxon_context_id ctx,
- u8 sta_id, u8 tid);
-void iwl_set_hw_rfkill_state(struct iwl_priv *priv, bool state);
void iwl_nic_config(struct iwl_priv *priv);
-void iwl_free_skb(struct iwl_priv *priv, struct sk_buff *skb);
-void iwl_apm_stop(struct iwl_priv *priv);
-int iwl_apm_init(struct iwl_priv *priv);
-void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand);
const char *get_cmd_string(u8 cmd);
-bool iwl_check_for_ct_kill(struct iwl_priv *priv);
-
-void iwl_stop_sw_queue(struct iwl_priv *priv, u8 ac);
-void iwl_wake_sw_queue(struct iwl_priv *priv, u8 ac);
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
-void iwl_reset_traffic_log(struct iwl_priv *priv);
-#endif /* CONFIG_IWLWIFI_DEBUGFS */
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-void iwl_print_rx_config_cmd(struct iwl_priv *priv,
- enum iwl_rxon_context_id ctxid);
-#else
-static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
- enum iwl_rxon_context_id ctxid)
-{
-}
-#endif
#define IWL_CMD(x) case x: return #x
-#define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
-
-#define IWL_TRAFFIC_ENTRIES (256)
-#define IWL_TRAFFIC_ENTRY_SIZE (64)
/*****************************************************
* DRIVER STATUS FUNCTIONS
#define STATUS_CHANNEL_SWITCH_PENDING 19
#define STATUS_SCAN_COMPLETE 20
-static inline int iwl_is_ready(struct iwl_shared *shrd)
-{
- /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
- * set but EXIT_PENDING is not */
- return test_bit(STATUS_READY, &shrd->status) &&
- test_bit(STATUS_GEO_CONFIGURED, &shrd->status) &&
- !test_bit(STATUS_EXIT_PENDING, &shrd->status);
-}
-
-static inline int iwl_is_alive(struct iwl_shared *shrd)
-{
- return test_bit(STATUS_ALIVE, &shrd->status);
-}
-
-static inline int iwl_is_init(struct iwl_shared *shrd)
-{
- return test_bit(STATUS_INIT, &shrd->status);
-}
-
-static inline int iwl_is_rfkill_hw(struct iwl_shared *shrd)
-{
- return test_bit(STATUS_RF_KILL_HW, &shrd->status);
-}
-
-static inline int iwl_is_rfkill(struct iwl_shared *shrd)
-{
- return iwl_is_rfkill_hw(shrd);
-}
-
-static inline int iwl_is_ctkill(struct iwl_shared *shrd)
-{
- return test_bit(STATUS_CT_KILL, &shrd->status);
-}
-
-static inline int iwl_is_ready_rf(struct iwl_shared *shrd)
-{
- if (iwl_is_rfkill(shrd))
- return 0;
-
- return iwl_is_ready(shrd);
-}
-
#endif /* #__iwl_shared_h__ */