iwl-shared.h

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2007 - 2011 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
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 * General Public License for more details.
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 * along with this program; if not, write to the Free Software
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 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
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 *****************************************************************************/
#ifndef __iwl_shared_h__
#define __iwl_shared_h__

/*This files includes all the types / functions that are exported by the
 * upper layer to the bus and transport layer */

struct iwl_cfg;
struct iwl_bus;
struct iwl_priv;
struct iwl_sensitivity_ranges;
struct iwl_trans_ops;

extern struct iwl_mod_params iwlagn_mod_params;

/**
 * struct iwl_mod_params
 * @sw_crypto: using hardware encryption, default = 0
 * @num_of_queues: number of tx queue, HW dependent
 * @disable_11n: 11n capabilities enabled, default = 0
 * @amsdu_size_8K: enable 8K amsdu size, default = 1
 * @antenna: both antennas (use diversity), default = 0
 * @restart_fw: restart firmware, default = 1
 * @plcp_check: enable plcp health check, default = true
 * @ack_check: disable ack health check, default = false
 * @wd_disable: enable stuck queue check, default = false
 * @bt_coex_active: enable bt coex, default = true
 * @led_mode: system default, default = 0
 * @no_sleep_autoadjust: disable autoadjust, default = true
 * @power_save: disable power save, default = false
 * @power_level: power level, default = 1
 * @debug_level: levels are IWL_DL_*
 * @ant_coupling: antenna coupling in dB, default = 0
 * @bt_ch_announce: BT channel inhibition, default = enable
 * @wanted_ucode_alternative: ucode alternative to use, default = 1
 * @auto_agg: enable agg. without check, default = true
 */
struct iwl_mod_params {
	int sw_crypto;
	int num_of_queues;
	int disable_11n;
	int amsdu_size_8K;
	int antenna;
	int restart_fw;
	bool plcp_check;
	bool ack_check;
	bool wd_disable;
	bool bt_coex_active;
	int led_mode;
	bool no_sleep_autoadjust;
	bool power_save;
	int power_level;
	u32 debug_level;
	int ant_coupling;
	bool bt_ch_announce;
	int wanted_ucode_alternative;
	bool auto_agg;
};

/**
 * struct iwl_hw_params
 * @max_txq_num: Max # Tx queues supported
 * @scd_bc_tbls_size: size of scheduler byte count tables
 * @tfd_size: TFD size
 * @tx/rx_chains_num: Number of TX/RX chains
 * @valid_tx/rx_ant: usable antennas
 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
 * @max_rxq_log: Log-base-2 of max_rxq_size
 * @rx_page_order: Rx buffer page order
 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
 * @max_stations:
 * @ht40_channel: is 40MHz width possible in band 2.4
 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
 * @sw_crypto: 0 for hw, 1 for sw
 * @max_xxx_size: for ucode uses
 * @ct_kill_threshold: temperature threshold
 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
 * @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
 */
struct iwl_hw_params {
	u8 max_txq_num;
	u16 scd_bc_tbls_size;
	u32 tfd_size;
	u8  tx_chains_num;
	u8  rx_chains_num;
	u8  valid_tx_ant;
	u8  valid_rx_ant;
	u16 max_rxq_size;
	u16 max_rxq_log;
	u32 rx_page_order;
	u8  max_stations;
	u8  ht40_channel;
	u8  max_beacon_itrvl;	/* in 1024 ms */
	u32 max_inst_size;
	u32 max_data_size;
	u32 ct_kill_threshold; /* value in hw-dependent units */
	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
				    /* for 1000, 6000 series and up */
	u16 beacon_time_tsf_bits;
	u32 calib_init_cfg;
	u32 calib_rt_cfg;
	const struct iwl_sensitivity_ranges *sens;
};

/**
 * 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)
 * @cmd_queue: command queue number
 * @status: STATUS_*
 * @bus: pointer to the bus layer data
 * @priv: pointer to the upper layer 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:
 */
struct iwl_shared {
#ifdef CONFIG_IWLWIFI_DEBUG
	u32 dbg_level_dev;
#endif /* CONFIG_IWLWIFI_DEBUG */

	u8 cmd_queue;
	unsigned long status;
	bool wowlan;

	struct iwl_bus *bus;
	struct iwl_priv *priv;
	struct iwl_trans *trans;
	struct iwl_hw_params hw_params;

	struct workqueue_struct *workqueue;
	spinlock_t lock;
	spinlock_t sta_lock;
	struct mutex mutex;
};

/*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

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)

#ifdef CONFIG_PM
int iwl_suspend(struct iwl_priv *priv);
int iwl_resume(struct iwl_priv *priv);
#endif /* !CONFIG_PM */

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);

#endif /* #__iwl_shared_h__ */