drivers/net/wireless/wl12xx/wl1271.h - kernel/prism - Git at Google

 /*
  * This file is part of wl1271
  *
  * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
  * Copyright (C) 2008-2009 Nokia Corporation
  *
  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA
  *
  */

 #ifndef __WL1271_H__
 #define __WL1271_H__

 #include <linux/mutex.h>
 #include <linux/completion.h>
 #include <linux/spinlock.h>
 #include <linux/list.h>
 #include <linux/bitops.h>
 #include <net/mac80211.h>

 #define DRIVER_NAME "wl1271"
 #define DRIVER_PREFIX DRIVER_NAME ": "

 enum {
 	DEBUG_NONE	= 0,
 	DEBUG_IRQ	= BIT(0),
 	DEBUG_SPI	= BIT(1),
 	DEBUG_BOOT	= BIT(2),
 	DEBUG_MAILBOX	= BIT(3),
 	DEBUG_NETLINK	= BIT(4),
 	DEBUG_EVENT	= BIT(5),
 	DEBUG_TX	= BIT(6),
 	DEBUG_RX	= BIT(7),
 	DEBUG_SCAN	= BIT(8),
 	DEBUG_CRYPT	= BIT(9),
 	DEBUG_PSM	= BIT(10),
 	DEBUG_MAC80211	= BIT(11),
 	DEBUG_CMD	= BIT(12),
 	DEBUG_ACX	= BIT(13),
 	DEBUG_ALL	= ~0,
 };

 #define DEBUG_LEVEL (DEBUG_NONE)

 #define DEBUG_DUMP_LIMIT 1024

 #define wl1271_error(fmt, arg...) \
 	printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)

 #define wl1271_warning(fmt, arg...) \
 	printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)

 #define wl1271_notice(fmt, arg...) \
 	printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)

 #define wl1271_info(fmt, arg...) \
 	printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)

 #define wl1271_debug(level, fmt, arg...) \
 	do { \
 		if (level & DEBUG_LEVEL) \
 			printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
 	} while (0)

 #define wl1271_dump(level, prefix, buf, len)	\
 	do { \
 		if (level & DEBUG_LEVEL) \
 			print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
 				       DUMP_PREFIX_OFFSET, 16, 1,	\
 				       buf,				\
 				       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
 				       0);				\
 	} while (0)

 #define wl1271_dump_ascii(level, prefix, buf, len)	\
 	do { \
 		if (level & DEBUG_LEVEL) \
 			print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
 				       DUMP_PREFIX_OFFSET, 16, 1,	\
 				       buf,				\
 				       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
 				       true);				\
 	} while (0)

 #define WL1271_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN |	\
 				  CFG_BSSID_FILTER_EN)

 #define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN |  \
 				  CFG_RX_MGMT_EN | CFG_RX_DATA_EN |   \
 				  CFG_RX_CTL_EN | CFG_RX_BCN_EN |     \
 				  CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)

 #define WL1271_FW_NAME "wl1271-fw.bin"
 #define WL1271_NVS_NAME "wl1271-nvs.bin"

 #define WL1271_BUSY_WORD_LEN 8

 #define WL1271_ELP_HW_STATE_ASLEEP 0
 #define WL1271_ELP_HW_STATE_IRQ    1

 enum wl1271_state {
 	WL1271_STATE_OFF,
 	WL1271_STATE_ON,
 	WL1271_STATE_PLT,
 };

 enum wl1271_partition_type {
 	PART_DOWN,
 	PART_WORK,
 	PART_DRPW,

 	PART_TABLE_LEN
 };

 struct wl1271_partition {
 	u32 size;
 	u32 start;
 };

 struct wl1271_partition_set {
 	struct wl1271_partition mem;
 	struct wl1271_partition reg;
 };

 struct wl1271;

 /* FIXME: I'm not sure about this structure name */
 struct wl1271_chip {
 	u32 id;
 	char fw_ver[21];
 };

 struct wl1271_stats {
 	struct acx_statistics *fw_stats;
 	unsigned long fw_stats_update;

 	unsigned int retry_count;
 	unsigned int excessive_retries;
 };

 struct wl1271_debugfs {
 	struct dentry *rootdir;
 	struct dentry *fw_statistics;

 	struct dentry *tx_internal_desc_overflow;

 	struct dentry *rx_out_of_mem;
 	struct dentry *rx_hdr_overflow;
 	struct dentry *rx_hw_stuck;
 	struct dentry *rx_dropped;
 	struct dentry *rx_fcs_err;
 	struct dentry *rx_xfr_hint_trig;
 	struct dentry *rx_path_reset;
 	struct dentry *rx_reset_counter;

 	struct dentry *dma_rx_requested;
 	struct dentry *dma_rx_errors;
 	struct dentry *dma_tx_requested;
 	struct dentry *dma_tx_errors;

 	struct dentry *isr_cmd_cmplt;
 	struct dentry *isr_fiqs;
 	struct dentry *isr_rx_headers;
 	struct dentry *isr_rx_mem_overflow;
 	struct dentry *isr_rx_rdys;
 	struct dentry *isr_irqs;
 	struct dentry *isr_tx_procs;
 	struct dentry *isr_decrypt_done;
 	struct dentry *isr_dma0_done;
 	struct dentry *isr_dma1_done;
 	struct dentry *isr_tx_exch_complete;
 	struct dentry *isr_commands;
 	struct dentry *isr_rx_procs;
 	struct dentry *isr_hw_pm_mode_changes;
 	struct dentry *isr_host_acknowledges;
 	struct dentry *isr_pci_pm;
 	struct dentry *isr_wakeups;
 	struct dentry *isr_low_rssi;

 	struct dentry *wep_addr_key_count;
 	struct dentry *wep_default_key_count;
 	/* skipping wep.reserved */
 	struct dentry *wep_key_not_found;
 	struct dentry *wep_decrypt_fail;
 	struct dentry *wep_packets;
 	struct dentry *wep_interrupt;

 	struct dentry *pwr_ps_enter;
 	struct dentry *pwr_elp_enter;
 	struct dentry *pwr_missing_bcns;
 	struct dentry *pwr_wake_on_host;
 	struct dentry *pwr_wake_on_timer_exp;
 	struct dentry *pwr_tx_with_ps;
 	struct dentry *pwr_tx_without_ps;
 	struct dentry *pwr_rcvd_beacons;
 	struct dentry *pwr_power_save_off;
 	struct dentry *pwr_enable_ps;
 	struct dentry *pwr_disable_ps;
 	struct dentry *pwr_fix_tsf_ps;
 	/* skipping cont_miss_bcns_spread for now */
 	struct dentry *pwr_rcvd_awake_beacons;

 	struct dentry *mic_rx_pkts;
 	struct dentry *mic_calc_failure;

 	struct dentry *aes_encrypt_fail;
 	struct dentry *aes_decrypt_fail;
 	struct dentry *aes_encrypt_packets;
 	struct dentry *aes_decrypt_packets;
 	struct dentry *aes_encrypt_interrupt;
 	struct dentry *aes_decrypt_interrupt;

 	struct dentry *event_heart_beat;
 	struct dentry *event_calibration;
 	struct dentry *event_rx_mismatch;
 	struct dentry *event_rx_mem_empty;
 	struct dentry *event_rx_pool;
 	struct dentry *event_oom_late;
 	struct dentry *event_phy_transmit_error;
 	struct dentry *event_tx_stuck;

 	struct dentry *ps_pspoll_timeouts;
 	struct dentry *ps_upsd_timeouts;
 	struct dentry *ps_upsd_max_sptime;
 	struct dentry *ps_upsd_max_apturn;
 	struct dentry *ps_pspoll_max_apturn;
 	struct dentry *ps_pspoll_utilization;
 	struct dentry *ps_upsd_utilization;

 	struct dentry *rxpipe_rx_prep_beacon_drop;
 	struct dentry *rxpipe_descr_host_int_trig_rx_data;
 	struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data;
 	struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data;
 	struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;

 	struct dentry *tx_queue_len;

 	struct dentry *retry_count;
 	struct dentry *excessive_retries;
 };

 #define NUM_TX_QUEUES              4
 #define NUM_RX_PKT_DESC            8

 /* FW status registers */
 struct wl1271_fw_status {
 	u32 intr;
 	u8  fw_rx_counter;
 	u8  drv_rx_counter;
 	u8  reserved;
 	u8  tx_results_counter;
 	u32 rx_pkt_descs[NUM_RX_PKT_DESC];
 	u32 tx_released_blks[NUM_TX_QUEUES];
 	u32 fw_localtime;
 	u32 padding[2];
 } __attribute__ ((packed));

 struct wl1271_rx_mem_pool_addr {
 	u32 addr;
 	u32 addr_extra;
 };

 struct wl1271 {
 	struct ieee80211_hw *hw;
 	bool mac80211_registered;

 	struct spi_device *spi;

 	void (*set_power)(bool enable);
 	int irq;

 	spinlock_t wl_lock;

 	enum wl1271_state state;
 	struct mutex mutex;

 	int physical_mem_addr;
 	int physical_reg_addr;
 	int virtual_mem_addr;
 	int virtual_reg_addr;

 	struct wl1271_chip chip;

 	int cmd_box_addr;
 	int event_box_addr;

 	u8 *fw;
 	size_t fw_len;
 	u8 *nvs;
 	size_t nvs_len;

 	u8 bssid[ETH_ALEN];
 	u8 mac_addr[ETH_ALEN];
 	u8 bss_type;
 	u8 ssid[IW_ESSID_MAX_SIZE + 1];
 	u8 ssid_len;
 	u8 listen_int;
 	int channel;

 	struct wl1271_acx_mem_map *target_mem_map;

 	/* Accounting for allocated / available TX blocks on HW */
 	u32 tx_blocks_freed[NUM_TX_QUEUES];
 	u32 tx_blocks_available;
 	u8 tx_results_count;

 	/* Transmitted TX packets counter for chipset interface */
 	int tx_packets_count;

 	/* Time-offset between host and chipset clocks */
 	int time_offset;

 	/* Session counter for the chipset */
 	int session_counter;

 	/* Frames scheduled for transmission, not handled yet */
 	struct sk_buff_head tx_queue;
 	bool tx_queue_stopped;

 	struct work_struct tx_work;
 	struct work_struct filter_work;

 	/* Pending TX frames */
 	struct sk_buff *tx_frames[16];

 	/* FW Rx counter */
 	u32 rx_counter;

 	/* Rx memory pool address */
 	struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;

 	/* The target interrupt mask */
 	struct work_struct irq_work;

 	/* The mbox event mask */
 	u32 event_mask;

 	/* Mailbox pointers */
 	u32 mbox_ptr[2];

 	/* Are we currently scanning */
 	bool scanning;

 	/* Our association ID */
 	u16 aid;

 	/* Default key (for WEP) */
 	u32 default_key;

 	unsigned int rx_config;
 	unsigned int rx_filter;

 	/* is firmware in elp mode */
 	bool elp;

 	struct completion *elp_compl;

 	/* we can be in psm, but not in elp, we have to differentiate */
 	bool psm;

 	/* PSM mode requested */
 	bool psm_requested;

 	/* in dBm */
 	int power_level;

 	struct wl1271_stats stats;
 	struct wl1271_debugfs debugfs;

 	u32 buffer_32;
 	u32 buffer_cmd;
 	u8 buffer_busyword[WL1271_BUSY_WORD_LEN];
 	struct wl1271_rx_descriptor *rx_descriptor;

 	struct wl1271_fw_status *fw_status;
 	struct wl1271_tx_hw_res_if *tx_res_if;
 };

 int wl1271_plt_start(struct wl1271 *wl);
 int wl1271_plt_stop(struct wl1271 *wl);

 #define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */

 #define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */

 #define WL1271_DEFAULT_POWER_LEVEL 0

 #define WL1271_TX_QUEUE_MAX_LENGTH 20

 /* WL1271 needs a 200ms sleep after power on */
 #define WL1271_POWER_ON_SLEEP 200 /* in miliseconds */

 #endif
	/*
	* This file is part of wl1271
	*
	* Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
	* Copyright (C) 2008-2009 Nokia Corporation
	*
	* Contact: Luciano Coelho <luciano.coelho@nokia.com>
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License
	* version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	* 02110-1301 USA
	*
	*/

	#ifndef __WL1271_H__
	#define __WL1271_H__

	#include <linux/mutex.h>
	#include <linux/completion.h>
	#include <linux/spinlock.h>
	#include <linux/list.h>
	#include <linux/bitops.h>
	#include <net/mac80211.h>

	#define DRIVER_NAME "wl1271"
	#define DRIVER_PREFIX DRIVER_NAME ": "

	enum {
	DEBUG_NONE = 0,
	DEBUG_IRQ = BIT(0),
	DEBUG_SPI = BIT(1),
	DEBUG_BOOT = BIT(2),
	DEBUG_MAILBOX = BIT(3),
	DEBUG_NETLINK = BIT(4),
	DEBUG_EVENT = BIT(5),
	DEBUG_TX = BIT(6),
	DEBUG_RX = BIT(7),
	DEBUG_SCAN = BIT(8),
	DEBUG_CRYPT = BIT(9),
	DEBUG_PSM = BIT(10),
	DEBUG_MAC80211 = BIT(11),
	DEBUG_CMD = BIT(12),
	DEBUG_ACX = BIT(13),
	DEBUG_ALL = ~0,
	};

	#define DEBUG_LEVEL (DEBUG_NONE)

	#define DEBUG_DUMP_LIMIT 1024

	#define wl1271_error(fmt, arg...) \
	printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)

	#define wl1271_warning(fmt, arg...) \
	printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)

	#define wl1271_notice(fmt, arg...) \
	printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)

	#define wl1271_info(fmt, arg...) \
	printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)

	#define wl1271_debug(level, fmt, arg...) \
	do { \
	if (level & DEBUG_LEVEL) \
	printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
	} while (0)

	#define wl1271_dump(level, prefix, buf, len) \
	do { \
	if (level & DEBUG_LEVEL) \
	print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
	DUMP_PREFIX_OFFSET, 16, 1, \
	buf, \
	min_t(size_t, len, DEBUG_DUMP_LIMIT), \
	0); \
	} while (0)

	#define wl1271_dump_ascii(level, prefix, buf, len) \
	do { \
	if (level & DEBUG_LEVEL) \
	print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
	DUMP_PREFIX_OFFSET, 16, 1, \
	buf, \
	min_t(size_t, len, DEBUG_DUMP_LIMIT), \
	true); \
	} while (0)

	#define WL1271_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN \| \
	CFG_BSSID_FILTER_EN)

	#define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK \| CFG_RX_PRSP_EN \| \
	CFG_RX_MGMT_EN \| CFG_RX_DATA_EN \| \
	CFG_RX_CTL_EN \| CFG_RX_BCN_EN \| \
	CFG_RX_AUTH_EN \| CFG_RX_ASSOC_EN)

	#define WL1271_FW_NAME "wl1271-fw.bin"
	#define WL1271_NVS_NAME "wl1271-nvs.bin"

	#define WL1271_BUSY_WORD_LEN 8

	#define WL1271_ELP_HW_STATE_ASLEEP 0
	#define WL1271_ELP_HW_STATE_IRQ 1

	enum wl1271_state {
	WL1271_STATE_OFF,
	WL1271_STATE_ON,
	WL1271_STATE_PLT,
	};

	enum wl1271_partition_type {
	PART_DOWN,
	PART_WORK,
	PART_DRPW,

	PART_TABLE_LEN
	};

	struct wl1271_partition {
	u32 size;
	u32 start;
	};

	struct wl1271_partition_set {
	struct wl1271_partition mem;
	struct wl1271_partition reg;
	};

	struct wl1271;

	/* FIXME: I'm not sure about this structure name */
	struct wl1271_chip {
	u32 id;
	char fw_ver[21];
	};

	struct wl1271_stats {
	struct acx_statistics *fw_stats;
	unsigned long fw_stats_update;

	unsigned int retry_count;
	unsigned int excessive_retries;
	};

	struct wl1271_debugfs {
	struct dentry *rootdir;
	struct dentry *fw_statistics;

	struct dentry *tx_internal_desc_overflow;

	struct dentry *rx_out_of_mem;
	struct dentry *rx_hdr_overflow;
	struct dentry *rx_hw_stuck;
	struct dentry *rx_dropped;
	struct dentry *rx_fcs_err;
	struct dentry *rx_xfr_hint_trig;
	struct dentry *rx_path_reset;
	struct dentry *rx_reset_counter;

	struct dentry *dma_rx_requested;
	struct dentry *dma_rx_errors;
	struct dentry *dma_tx_requested;
	struct dentry *dma_tx_errors;

	struct dentry *isr_cmd_cmplt;
	struct dentry *isr_fiqs;
	struct dentry *isr_rx_headers;
	struct dentry *isr_rx_mem_overflow;
	struct dentry *isr_rx_rdys;
	struct dentry *isr_irqs;
	struct dentry *isr_tx_procs;
	struct dentry *isr_decrypt_done;
	struct dentry *isr_dma0_done;
	struct dentry *isr_dma1_done;
	struct dentry *isr_tx_exch_complete;
	struct dentry *isr_commands;
	struct dentry *isr_rx_procs;
	struct dentry *isr_hw_pm_mode_changes;
	struct dentry *isr_host_acknowledges;
	struct dentry *isr_pci_pm;
	struct dentry *isr_wakeups;
	struct dentry *isr_low_rssi;

	struct dentry *wep_addr_key_count;
	struct dentry *wep_default_key_count;
	/* skipping wep.reserved */
	struct dentry *wep_key_not_found;
	struct dentry *wep_decrypt_fail;
	struct dentry *wep_packets;
	struct dentry *wep_interrupt;

	struct dentry *pwr_ps_enter;
	struct dentry *pwr_elp_enter;
	struct dentry *pwr_missing_bcns;
	struct dentry *pwr_wake_on_host;
	struct dentry *pwr_wake_on_timer_exp;
	struct dentry *pwr_tx_with_ps;
	struct dentry *pwr_tx_without_ps;
	struct dentry *pwr_rcvd_beacons;
	struct dentry *pwr_power_save_off;
	struct dentry *pwr_enable_ps;
	struct dentry *pwr_disable_ps;
	struct dentry *pwr_fix_tsf_ps;
	/* skipping cont_miss_bcns_spread for now */
	struct dentry *pwr_rcvd_awake_beacons;

	struct dentry *mic_rx_pkts;
	struct dentry *mic_calc_failure;

	struct dentry *aes_encrypt_fail;
	struct dentry *aes_decrypt_fail;
	struct dentry *aes_encrypt_packets;
	struct dentry *aes_decrypt_packets;
	struct dentry *aes_encrypt_interrupt;
	struct dentry *aes_decrypt_interrupt;

	struct dentry *event_heart_beat;
	struct dentry *event_calibration;
	struct dentry *event_rx_mismatch;
	struct dentry *event_rx_mem_empty;
	struct dentry *event_rx_pool;
	struct dentry *event_oom_late;
	struct dentry *event_phy_transmit_error;
	struct dentry *event_tx_stuck;

	struct dentry *ps_pspoll_timeouts;
	struct dentry *ps_upsd_timeouts;
	struct dentry *ps_upsd_max_sptime;
	struct dentry *ps_upsd_max_apturn;
	struct dentry *ps_pspoll_max_apturn;
	struct dentry *ps_pspoll_utilization;
	struct dentry *ps_upsd_utilization;

	struct dentry *rxpipe_rx_prep_beacon_drop;
	struct dentry *rxpipe_descr_host_int_trig_rx_data;
	struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data;
	struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data;
	struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;

	struct dentry *tx_queue_len;

	struct dentry *retry_count;
	struct dentry *excessive_retries;
	};

	#define NUM_TX_QUEUES 4
	#define NUM_RX_PKT_DESC 8

	/* FW status registers */
	struct wl1271_fw_status {
	u32 intr;
	u8 fw_rx_counter;
	u8 drv_rx_counter;
	u8 reserved;
	u8 tx_results_counter;
	u32 rx_pkt_descs[NUM_RX_PKT_DESC];
	u32 tx_released_blks[NUM_TX_QUEUES];
	u32 fw_localtime;
	u32 padding[2];
	} __attribute__ ((packed));

	struct wl1271_rx_mem_pool_addr {
	u32 addr;
	u32 addr_extra;
	};

	struct wl1271 {
	struct ieee80211_hw *hw;
	bool mac80211_registered;

	struct spi_device *spi;

	void (*set_power)(bool enable);
	int irq;

	spinlock_t wl_lock;

	enum wl1271_state state;
	struct mutex mutex;

	int physical_mem_addr;
	int physical_reg_addr;
	int virtual_mem_addr;
	int virtual_reg_addr;

	struct wl1271_chip chip;

	int cmd_box_addr;
	int event_box_addr;

	u8 *fw;
	size_t fw_len;
	u8 *nvs;
	size_t nvs_len;

	u8 bssid[ETH_ALEN];
	u8 mac_addr[ETH_ALEN];
	u8 bss_type;
	u8 ssid[IW_ESSID_MAX_SIZE + 1];
	u8 ssid_len;
	u8 listen_int;
	int channel;

	struct wl1271_acx_mem_map *target_mem_map;

	/* Accounting for allocated / available TX blocks on HW */
	u32 tx_blocks_freed[NUM_TX_QUEUES];
	u32 tx_blocks_available;
	u8 tx_results_count;

	/* Transmitted TX packets counter for chipset interface */
	int tx_packets_count;

	/* Time-offset between host and chipset clocks */
	int time_offset;

	/* Session counter for the chipset */
	int session_counter;

	/* Frames scheduled for transmission, not handled yet */
	struct sk_buff_head tx_queue;
	bool tx_queue_stopped;

	struct work_struct tx_work;
	struct work_struct filter_work;

	/* Pending TX frames */
	struct sk_buff *tx_frames[16];

	/* FW Rx counter */
	u32 rx_counter;

	/* Rx memory pool address */
	struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;

	/* The target interrupt mask */
	struct work_struct irq_work;

	/* The mbox event mask */
	u32 event_mask;

	/* Mailbox pointers */
	u32 mbox_ptr[2];

	/* Are we currently scanning */
	bool scanning;

	/* Our association ID */
	u16 aid;

	/* Default key (for WEP) */
	u32 default_key;

	unsigned int rx_config;
	unsigned int rx_filter;

	/* is firmware in elp mode */
	bool elp;

	struct completion *elp_compl;

	/* we can be in psm, but not in elp, we have to differentiate */
	bool psm;

	/* PSM mode requested */
	bool psm_requested;

	/* in dBm */
	int power_level;

	struct wl1271_stats stats;
	struct wl1271_debugfs debugfs;

	u32 buffer_32;
	u32 buffer_cmd;
	u8 buffer_busyword[WL1271_BUSY_WORD_LEN];
	struct wl1271_rx_descriptor *rx_descriptor;

	struct wl1271_fw_status *fw_status;
	struct wl1271_tx_hw_res_if *tx_res_if;
	};

	int wl1271_plt_start(struct wl1271 *wl);
	int wl1271_plt_stop(struct wl1271 *wl);

	#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */

	#define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */

	#define WL1271_DEFAULT_POWER_LEVEL 0

	#define WL1271_TX_QUEUE_MAX_LENGTH 20

	/* WL1271 needs a 200ms sleep after power on */
	#define WL1271_POWER_ON_SLEEP 200 /* in miliseconds */

	#endif