wl12xx: add driver

wl12xx is a driver for TI wl1251 802.11 chipset designed for embedded
devices, supporting both SDIO and SPI busses. Currently the driver
supports only SPI. Adding support 1253 (the 5 GHz version) should be
relatively easy. More information here:

http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?contentId=4711&navigationId=12494&templateId=6123

(Collapsed original sequence of pre-merge patches into single commit for
initial merge. -- JWL)

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/wl12xx/acx.h b/drivers/net/wireless/wl12xx/acx.h
new file mode 100644
index 0000000..fb2d234
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/acx.h
@@ -0,0 +1,1245 @@
+/*
+ * This file is part of wl12xx
+ *
+ * Copyright (c) 1998-2007 Texas Instruments Incorporated
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Contact: Kalle Valo <kalle.valo@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 __WL12XX_ACX_H__
+#define __WL12XX_ACX_H__
+
+#include "wl12xx.h"
+
+/* Target's information element */
+struct acx_header {
+	u16 id;
+	u16 len;
+};
+
+struct acx_error_counter {
+	struct acx_header header;
+
+	/* The number of PLCP errors since the last time this */
+	/* information element was interrogated. This field is */
+	/* automatically cleared when it is interrogated.*/
+	u32 PLCP_error;
+
+	/* The number of FCS errors since the last time this */
+	/* information element was interrogated. This field is */
+	/* automatically cleared when it is interrogated.*/
+	u32 FCS_error;
+
+	/* The number of MPDUs without PLCP header errors received*/
+	/* since the last time this information element was interrogated. */
+	/* This field is automatically cleared when it is interrogated.*/
+	u32 valid_frame;
+
+	/* the number of missed sequence numbers in the squentially */
+	/* values of frames seq numbers */
+	u32 seq_num_miss;
+} __attribute__ ((packed));
+
+struct acx_revision {
+	struct acx_header header;
+
+	/*
+	 * The WiLink firmware version, an ASCII string x.x.x.x,
+	 * that uniquely identifies the current firmware.
+	 * The left most digit is incremented each time a
+	 * significant change is made to the firmware, such as
+	 * code redesign or new platform support.
+	 * The second digit is incremented when major enhancements
+	 * are added or major fixes are made.
+	 * The third digit is incremented for each GA release.
+	 * The fourth digit is incremented for each build.
+	 * The first two digits identify a firmware release version,
+	 * in other words, a unique set of features.
+	 * The first three digits identify a GA release.
+	 */
+	char fw_version[20];
+
+	/*
+	 * This 4 byte field specifies the WiLink hardware version.
+	 * bits 0  - 15: Reserved.
+	 * bits 16 - 23: Version ID - The WiLink version ID
+	 *              (1 = first spin, 2 = second spin, and so on).
+	 * bits 24 - 31: Chip ID - The WiLink chip ID.
+	 */
+	u32 hw_version;
+} __attribute__ ((packed));
+
+enum wl12xx_psm_mode {
+	/* Active mode */
+	WL12XX_PSM_CAM = 0,
+
+	/* Power save mode */
+	WL12XX_PSM_PS = 1,
+
+	/* Extreme low power */
+	WL12XX_PSM_ELP = 2,
+};
+
+struct acx_sleep_auth {
+	struct acx_header header;
+
+	/* The sleep level authorization of the device. */
+	/* 0 - Always active*/
+	/* 1 - Power down mode: light / fast sleep*/
+	/* 2 - ELP mode: Deep / Max sleep*/
+	u8  sleep_auth;
+	u8  padding[3];
+} __attribute__ ((packed));
+
+#define TIM_ELE_ID    5
+#define PARTIAL_VBM_MAX    251
+
+struct tim {
+	u8 identity;
+	u8 length;
+	u8 dtim_count;
+	u8 dtim_period;
+	u8 bitmap_ctrl;
+	u8 pvb_field[PARTIAL_VBM_MAX]; /* Partial Virtual Bitmap */
+} __attribute__ ((packed));
+
+/* Virtual Bit Map update */
+struct vbm_update_request {
+	__le16 len;
+	u8  padding[2];
+	struct tim tim;
+} __attribute__ ((packed));
+
+enum {
+	HOSTIF_PCI_MASTER_HOST_INDIRECT,
+	HOSTIF_PCI_MASTER_HOST_DIRECT,
+	HOSTIF_SLAVE,
+	HOSTIF_PKT_RING,
+	HOSTIF_DONTCARE = 0xFF
+};
+
+#define DEFAULT_UCAST_PRIORITY          0
+#define DEFAULT_RX_Q_PRIORITY           0
+#define DEFAULT_NUM_STATIONS            1
+#define DEFAULT_RXQ_PRIORITY            0 /* low 0 .. 15 high  */
+#define DEFAULT_RXQ_TYPE                0x07    /* All frames, Data/Ctrl/Mgmt */
+#define TRACE_BUFFER_MAX_SIZE           256
+
+#define  DP_RX_PACKET_RING_CHUNK_SIZE 1600
+#define  DP_TX_PACKET_RING_CHUNK_SIZE 1600
+#define  DP_RX_PACKET_RING_CHUNK_NUM 2
+#define  DP_TX_PACKET_RING_CHUNK_NUM 2
+#define  DP_TX_COMPLETE_TIME_OUT 20
+#define  FW_TX_CMPLT_BLOCK_SIZE 16
+
+struct acx_data_path_params {
+	struct acx_header header;
+
+	u16 rx_packet_ring_chunk_size;
+	u16 tx_packet_ring_chunk_size;
+
+	u8 rx_packet_ring_chunk_num;
+	u8 tx_packet_ring_chunk_num;
+
+	/*
+	 * Maximum number of packets that can be gathered
+	 * in the TX complete ring before an interrupt
+	 * is generated.
+	 */
+	u8 tx_complete_threshold;
+
+	/* Number of pending TX complete entries in cyclic ring.*/
+	u8 tx_complete_ring_depth;
+
+	/*
+	 * Max num microseconds since a packet enters the TX
+	 * complete ring until an interrupt is generated.
+	 */
+	u32 tx_complete_timeout;
+} __attribute__ ((packed));
+
+
+struct acx_data_path_params_resp {
+	struct acx_header header;
+
+	u16 rx_packet_ring_chunk_size;
+	u16 tx_packet_ring_chunk_size;
+
+	u8 rx_packet_ring_chunk_num;
+	u8 tx_packet_ring_chunk_num;
+
+	u8 pad[2];
+
+	u32 rx_packet_ring_addr;
+	u32 tx_packet_ring_addr;
+
+	u32 rx_control_addr;
+	u32 tx_control_addr;
+
+	u32 tx_complete_addr;
+} __attribute__ ((packed));
+
+#define TX_MSDU_LIFETIME_MIN       0
+#define TX_MSDU_LIFETIME_MAX       3000
+#define TX_MSDU_LIFETIME_DEF       512
+#define RX_MSDU_LIFETIME_MIN       0
+#define RX_MSDU_LIFETIME_MAX       0xFFFFFFFF
+#define RX_MSDU_LIFETIME_DEF       512000
+
+struct rx_msdu_lifetime {
+	struct acx_header header;
+
+	/*
+	 * The maximum amount of time, in TU, before the
+	 * firmware discards the MSDU.
+	 */
+	u32 lifetime;
+} __attribute__ ((packed));
+
+/*
+ * RX Config Options Table
+ * Bit		Definition
+ * ===		==========
+ * 31:14		Reserved
+ * 13		Copy RX Status - when set, write three receive status words
+ * 	 	to top of rx'd MPDUs.
+ * 		When cleared, do not write three status words (added rev 1.5)
+ * 12		Reserved
+ * 11		RX Complete upon FCS error - when set, give rx complete
+ *	 	interrupt for FCS errors, after the rx filtering, e.g. unicast
+ *	 	frames not to us with FCS error will not generate an interrupt.
+ * 10		SSID Filter Enable - When set, the WiLink discards all beacon,
+ *	        probe request, and probe response frames with an SSID that does
+ *		not match the SSID specified by the host in the START/JOIN
+ *		command.
+ *		When clear, the WiLink receives frames with any SSID.
+ * 9		Broadcast Filter Enable - When set, the WiLink discards all
+ * 	 	broadcast frames. When clear, the WiLink receives all received
+ *		broadcast frames.
+ * 8:6		Reserved
+ * 5		BSSID Filter Enable - When set, the WiLink discards any frames
+ * 	 	with a BSSID that does not match the BSSID specified by the
+ *		host.
+ *		When clear, the WiLink receives frames from any BSSID.
+ * 4		MAC Addr Filter - When set, the WiLink discards any frames
+ * 	 	with a destination address that does not match the MAC address
+ *		of the adaptor.
+ *		When clear, the WiLink receives frames destined to any MAC
+ *		address.
+ * 3		Promiscuous - When set, the WiLink receives all valid frames
+ * 	 	(i.e., all frames that pass the FCS check).
+ *		When clear, only frames that pass the other filters specified
+ *		are received.
+ * 2		FCS - When set, the WiLink includes the FCS with the received
+ *	 	frame.
+ *		When cleared, the FCS is discarded.
+ * 1		PLCP header - When set, write all data from baseband to frame
+ * 	 	buffer including PHY header.
+ * 0		Reserved - Always equal to 0.
+ *
+ * RX Filter Options Table
+ * Bit		Definition
+ * ===		==========
+ * 31:12		Reserved - Always equal to 0.
+ * 11		Association - When set, the WiLink receives all association
+ * 	 	related frames (association request/response, reassocation
+ *		request/response, and disassociation). When clear, these frames
+ *		are discarded.
+ * 10		Auth/De auth - When set, the WiLink receives all authentication
+ * 	 	and de-authentication frames. When clear, these frames are
+ *		discarded.
+ * 9		Beacon - When set, the WiLink receives all beacon frames.
+ * 	 	When clear, these frames are discarded.
+ * 8		Contention Free - When set, the WiLink receives all contention
+ * 	 	free frames.
+ *		When clear, these frames are discarded.
+ * 7		Control - When set, the WiLink receives all control frames.
+ * 	 	When clear, these frames are discarded.
+ * 6		Data - When set, the WiLink receives all data frames.
+ * 	 	When clear, these frames are discarded.
+ * 5		FCS Error - When set, the WiLink receives frames that have FCS
+ *	 	errors.
+ *		When clear, these frames are discarded.
+ * 4		Management - When set, the WiLink receives all management
+ *		frames.
+ * 	 	When clear, these frames are discarded.
+ * 3		Probe Request - When set, the WiLink receives all probe request
+ * 	 	frames.
+ *		When clear, these frames are discarded.
+ * 2		Probe Response - When set, the WiLink receives all probe
+ * 		response frames.
+ *		When clear, these frames are discarded.
+ * 1		RTS/CTS/ACK - When set, the WiLink receives all RTS, CTS and ACK
+ * 	 	frames.
+ *		When clear, these frames are discarded.
+ * 0		Rsvd Type/Sub Type - When set, the WiLink receives all frames
+ * 	 	that have reserved frame types and sub types as defined by the
+ *		802.11 specification.
+ *		When clear, these frames are discarded.
+ */
+struct acx_rx_config {
+	struct acx_header header;
+
+	u32 config_options;
+	u32 filter_options;
+} __attribute__ ((packed));
+
+enum {
+	QOS_AC_BE = 0,
+	QOS_AC_BK,
+	QOS_AC_VI,
+	QOS_AC_VO,
+	QOS_HIGHEST_AC_INDEX = QOS_AC_VO,
+};
+
+#define MAX_NUM_OF_AC             (QOS_HIGHEST_AC_INDEX+1)
+#define FIRST_AC_INDEX            QOS_AC_BE
+#define MAX_NUM_OF_802_1d_TAGS    8
+#define AC_PARAMS_MAX_TSID        15
+#define MAX_APSD_CONF             0xffff
+
+#define  QOS_TX_HIGH_MIN      (0)
+#define  QOS_TX_HIGH_MAX      (100)
+
+#define  QOS_TX_HIGH_BK_DEF   (25)
+#define  QOS_TX_HIGH_BE_DEF   (35)
+#define  QOS_TX_HIGH_VI_DEF   (35)
+#define  QOS_TX_HIGH_VO_DEF   (35)
+
+#define  QOS_TX_LOW_BK_DEF    (15)
+#define  QOS_TX_LOW_BE_DEF    (25)
+#define  QOS_TX_LOW_VI_DEF    (25)
+#define  QOS_TX_LOW_VO_DEF    (25)
+
+struct acx_tx_queue_qos_config {
+	struct acx_header header;
+
+	u8 qid;
+	u8 pad[3];
+
+	/* Max number of blocks allowd in the queue */
+	u16 high_threshold;
+
+	/* Lowest memory blocks guaranteed for this queue */
+	u16 low_threshold;
+} __attribute__ ((packed));
+
+struct acx_packet_detection {
+	struct acx_header header;
+
+	u32 threshold;
+} __attribute__ ((packed));
+
+
+enum acx_slot_type {
+	SLOT_TIME_LONG = 0,
+	SLOT_TIME_SHORT = 1,
+	DEFAULT_SLOT_TIME = SLOT_TIME_SHORT,
+	MAX_SLOT_TIMES = 0xFF
+};
+
+#define STATION_WONE_INDEX 0
+
+struct acx_slot {
+	struct acx_header header;
+
+	u8 wone_index; /* Reserved */
+	u8 slot_time;
+	u8 reserved[6];
+} __attribute__ ((packed));
+
+
+#define ADDRESS_GROUP_MAX	(8)
+#define ADDRESS_GROUP_MAX_LEN	(ETH_ALEN * ADDRESS_GROUP_MAX)
+
+struct multicast_grp_addr_start {
+	struct acx_header header;
+
+	u8 enabled;
+	u8 num_groups;
+	u8 pad[2];
+	u8 mac_table[ADDRESS_GROUP_MAX_LEN];
+} __attribute__ ((packed));
+
+
+#define  RX_TIMEOUT_PS_POLL_MIN    0
+#define  RX_TIMEOUT_PS_POLL_MAX    (200000)
+#define  RX_TIMEOUT_PS_POLL_DEF    (15)
+#define  RX_TIMEOUT_UPSD_MIN       0
+#define  RX_TIMEOUT_UPSD_MAX       (200000)
+#define  RX_TIMEOUT_UPSD_DEF       (15)
+
+struct acx_rx_timeout {
+	struct acx_header header;
+
+	/*
+	 * The longest time the STA will wait to receive
+	 * traffic from the AP after a PS-poll has been
+	 * transmitted.
+	 */
+	u16 ps_poll_timeout;
+
+	/*
+	 * The longest time the STA will wait to receive
+	 * traffic from the AP after a frame has been sent
+	 * from an UPSD enabled queue.
+	 */
+	u16 upsd_timeout;
+} __attribute__ ((packed));
+
+#define RTS_THRESHOLD_MIN              0
+#define RTS_THRESHOLD_MAX              4096
+#define RTS_THRESHOLD_DEF              2347
+
+struct acx_rts_threshold {
+	struct acx_header header;
+
+	u16 threshold;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+struct acx_beacon_filter_option {
+	struct acx_header header;
+
+	u8 enable;
+
+	/*
+	 * The number of beacons without the unicast TIM
+	 * bit set that the firmware buffers before
+	 * signaling the host about ready frames.
+	 * When set to 0 and the filter is enabled, beacons
+	 * without the unicast TIM bit set are dropped.
+	 */
+	u8 max_num_beacons;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+/*
+ * ACXBeaconFilterEntry (not 221)
+ * Byte Offset     Size (Bytes)    Definition
+ * ===========     ============    ==========
+ * 0				1               IE identifier
+ * 1               1               Treatment bit mask
+ *
+ * ACXBeaconFilterEntry (221)
+ * Byte Offset     Size (Bytes)    Definition
+ * ===========     ============    ==========
+ * 0               1               IE identifier
+ * 1               1               Treatment bit mask
+ * 2               3               OUI
+ * 5               1               Type
+ * 6               2               Version
+ *
+ *
+ * Treatment bit mask - The information element handling:
+ * bit 0 - The information element is compared and transferred
+ * in case of change.
+ * bit 1 - The information element is transferred to the host
+ * with each appearance or disappearance.
+ * Note that both bits can be set at the same time.
+ */
+#define	BEACON_FILTER_TABLE_MAX_IE_NUM		       (32)
+#define BEACON_FILTER_TABLE_MAX_VENDOR_SPECIFIC_IE_NUM (6)
+#define BEACON_FILTER_TABLE_IE_ENTRY_SIZE	       (2)
+#define BEACON_FILTER_TABLE_EXTRA_VENDOR_SPECIFIC_IE_SIZE (6)
+#define BEACON_FILTER_TABLE_MAX_SIZE ((BEACON_FILTER_TABLE_MAX_IE_NUM * \
+			    BEACON_FILTER_TABLE_IE_ENTRY_SIZE) + \
+			   (BEACON_FILTER_TABLE_MAX_VENDOR_SPECIFIC_IE_NUM * \
+			    BEACON_FILTER_TABLE_EXTRA_VENDOR_SPECIFIC_IE_SIZE))
+
+struct acx_beacon_filter_ie_table {
+	struct acx_header header;
+
+	u8 num_ie;
+	u8 table[BEACON_FILTER_TABLE_MAX_SIZE];
+	u8 pad[3];
+} __attribute__ ((packed));
+
+enum {
+	SG_ENABLE = 0,
+	SG_DISABLE,
+	SG_SENSE_NO_ACTIVITY,
+	SG_SENSE_ACTIVE
+};
+
+struct acx_bt_wlan_coex {
+	struct acx_header header;
+
+	/*
+	 * 0 -> PTA enabled
+	 * 1 -> PTA disabled
+	 * 2 -> sense no active mode, i.e.
+	 *      an interrupt is sent upon
+	 *      BT activity.
+	 * 3 -> PTA is switched on in response
+	 *      to the interrupt sending.
+	 */
+	u8 enable;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+#define PTA_ANTENNA_TYPE_DEF		  (0)
+#define PTA_BT_HP_MAXTIME_DEF		  (2000)
+#define PTA_WLAN_HP_MAX_TIME_DEF	  (5000)
+#define PTA_SENSE_DISABLE_TIMER_DEF	  (1350)
+#define PTA_PROTECTIVE_RX_TIME_DEF	  (1500)
+#define PTA_PROTECTIVE_TX_TIME_DEF	  (1500)
+#define PTA_TIMEOUT_NEXT_BT_LP_PACKET_DEF (3000)
+#define PTA_SIGNALING_TYPE_DEF		  (1)
+#define PTA_AFH_LEVERAGE_ON_DEF		  (0)
+#define PTA_NUMBER_QUIET_CYCLE_DEF	  (0)
+#define PTA_MAX_NUM_CTS_DEF		  (3)
+#define PTA_NUMBER_OF_WLAN_PACKETS_DEF	  (2)
+#define PTA_NUMBER_OF_BT_PACKETS_DEF	  (2)
+#define PTA_PROTECTIVE_RX_TIME_FAST_DEF	  (1500)
+#define PTA_PROTECTIVE_TX_TIME_FAST_DEF	  (3000)
+#define PTA_CYCLE_TIME_FAST_DEF		  (8700)
+#define PTA_RX_FOR_AVALANCHE_DEF	  (5)
+#define PTA_ELP_HP_DEF			  (0)
+#define PTA_ANTI_STARVE_PERIOD_DEF	  (500)
+#define PTA_ANTI_STARVE_NUM_CYCLE_DEF	  (4)
+#define PTA_ALLOW_PA_SD_DEF		  (1)
+#define PTA_TIME_BEFORE_BEACON_DEF	  (6300)
+#define PTA_HPDM_MAX_TIME_DEF		  (1600)
+#define PTA_TIME_OUT_NEXT_WLAN_DEF	  (2550)
+#define PTA_AUTO_MODE_NO_CTS_DEF	  (0)
+#define PTA_BT_HP_RESPECTED_DEF		  (3)
+#define PTA_WLAN_RX_MIN_RATE_DEF	  (24)
+#define PTA_ACK_MODE_DEF		  (1)
+
+struct acx_bt_wlan_coex_param {
+	struct acx_header header;
+
+	/*
+	 * The minimum rate of a received WLAN packet in the STA,
+	 * during protective mode, of which a new BT-HP request
+	 * during this Rx will always be respected and gain the antenna.
+	 */
+	u32 min_rate;
+
+	/* Max time the BT HP will be respected. */
+	u16 bt_hp_max_time;
+
+	/* Max time the WLAN HP will be respected. */
+	u16 wlan_hp_max_time;
+
+	/*
+	 * The time between the last BT activity
+	 * and the moment when the sense mode returns
+	 * to SENSE_INACTIVE.
+	 */
+	u16 sense_disable_timer;
+
+	/* Time before the next BT HP instance */
+	u16 rx_time_bt_hp;
+	u16 tx_time_bt_hp;
+
+	/* range: 10-20000    default: 1500 */
+	u16 rx_time_bt_hp_fast;
+	u16 tx_time_bt_hp_fast;
+
+	/* range: 2000-65535  default: 8700 */
+	u16 wlan_cycle_fast;
+
+	/* range: 0 - 15000 (Msec) default: 1000 */
+	u16 bt_anti_starvation_period;
+
+	/* range 400-10000(Usec) default: 3000 */
+	u16 next_bt_lp_packet;
+
+	/* Deafult: worst case for BT DH5 traffic */
+	u16 wake_up_beacon;
+
+	/* range: 0-50000(Usec) default: 1050 */
+	u16 hp_dm_max_guard_time;
+
+	/*
+	 * This is to prevent both BT & WLAN antenna
+	 * starvation.
+	 * Range: 100-50000(Usec) default:2550
+	 */
+	u16 next_wlan_packet;
+
+	/* 0 -> shared antenna */
+	u8 antenna_type;
+
+	/*
+	 * 0 -> TI legacy
+	 * 1 -> Palau
+	 */
+	u8 signal_type;
+
+	/*
+	 * BT AFH status
+	 * 0 -> no AFH
+	 * 1 -> from dedicated GPIO
+	 * 2 -> AFH on (from host)
+	 */
+	u8 afh_leverage_on;
+
+	/*
+	 * The number of cycles during which no
+	 * TX will be sent after 1 cycle of RX
+	 * transaction in protective mode
+	 */
+	u8 quiet_cycle_num;
+
+	/*
+	 * The maximum number of CTSs that will
+	 * be sent for receiving RX packet in
+	 * protective mode
+	 */
+	u8 max_cts;
+
+	/*
+	 * The number of WLAN packets
+	 * transferred in common mode before
+	 * switching to BT.
+	 */
+	u8 wlan_packets_num;
+
+	/*
+	 * The number of BT packets
+	 * transferred in common mode before
+	 * switching to WLAN.
+	 */
+	u8 bt_packets_num;
+
+	/* range: 1-255  default: 5 */
+	u8 missed_rx_avalanche;
+
+	/* range: 0-1    default: 1 */
+	u8 wlan_elp_hp;
+
+	/* range: 0 - 15  default: 4 */
+	u8 bt_anti_starvation_cycles;
+
+	u8 ack_mode_dual_ant;
+
+	/*
+	 * Allow PA_SD assertion/de-assertion
+	 * during enabled BT activity.
+	 */
+	u8 pa_sd_enable;
+
+	/*
+	 * Enable/Disable PTA in auto mode:
+	 * Support Both Active & P.S modes
+	 */
+	u8 pta_auto_mode_enable;
+
+	/* range: 0 - 20  default: 1 */
+	u8 bt_hp_respected_num;
+} __attribute__ ((packed));
+
+#define CCA_THRSH_ENABLE_ENERGY_D       0x140A
+#define CCA_THRSH_DISABLE_ENERGY_D      0xFFEF
+
+struct acx_energy_detection {
+	struct acx_header header;
+
+	/* The RX Clear Channel Assessment threshold in the PHY */
+	u16 rx_cca_threshold;
+	u8 tx_energy_detection;
+	u8 pad;
+} __attribute__ ((packed));
+
+#define BCN_RX_TIMEOUT_DEF_VALUE        10000
+#define BROADCAST_RX_TIMEOUT_DEF_VALUE  20000
+#define RX_BROADCAST_IN_PS_DEF_VALUE    1
+#define CONSECUTIVE_PS_POLL_FAILURE_DEF 4
+
+struct acx_beacon_broadcast {
+	struct acx_header header;
+
+	u16 beacon_rx_timeout;
+	u16 broadcast_timeout;
+
+	/* Enables receiving of broadcast packets in PS mode */
+	u8 rx_broadcast_in_ps;
+
+	/* Consecutive PS Poll failures before updating the host */
+	u8 ps_poll_threshold;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+struct acx_event_mask {
+	struct acx_header header;
+
+	u32 event_mask;
+	u32 high_event_mask; /* Unused */
+} __attribute__ ((packed));
+
+#define CFG_RX_FCS		BIT(2)
+#define CFG_RX_ALL_GOOD		BIT(3)
+#define CFG_UNI_FILTER_EN	BIT(4)
+#define CFG_BSSID_FILTER_EN	BIT(5)
+#define CFG_MC_FILTER_EN	BIT(6)
+#define CFG_MC_ADDR0_EN		BIT(7)
+#define CFG_MC_ADDR1_EN		BIT(8)
+#define CFG_BC_REJECT_EN	BIT(9)
+#define CFG_SSID_FILTER_EN	BIT(10)
+#define CFG_RX_INT_FCS_ERROR	BIT(11)
+#define CFG_RX_INT_ENCRYPTED	BIT(12)
+#define CFG_RX_WR_RX_STATUS	BIT(13)
+#define CFG_RX_FILTER_NULTI	BIT(14)
+#define CFG_RX_RESERVE		BIT(15)
+#define CFG_RX_TIMESTAMP_TSF	BIT(16)
+
+#define CFG_RX_RSV_EN		BIT(0)
+#define CFG_RX_RCTS_ACK		BIT(1)
+#define CFG_RX_PRSP_EN		BIT(2)
+#define CFG_RX_PREQ_EN		BIT(3)
+#define CFG_RX_MGMT_EN		BIT(4)
+#define CFG_RX_FCS_ERROR	BIT(5)
+#define CFG_RX_DATA_EN		BIT(6)
+#define CFG_RX_CTL_EN		BIT(7)
+#define CFG_RX_CF_EN		BIT(8)
+#define CFG_RX_BCN_EN		BIT(9)
+#define CFG_RX_AUTH_EN		BIT(10)
+#define CFG_RX_ASSOC_EN		BIT(11)
+
+#define SCAN_PASSIVE		BIT(0)
+#define SCAN_5GHZ_BAND		BIT(1)
+#define SCAN_TRIGGERED		BIT(2)
+#define SCAN_PRIORITY_HIGH	BIT(3)
+
+struct acx_fw_gen_frame_rates {
+	struct acx_header header;
+
+	u8 tx_ctrl_frame_rate; /* RATE_* */
+	u8 tx_ctrl_frame_mod; /* CCK_* or PBCC_* */
+	u8 tx_mgt_frame_rate;
+	u8 tx_mgt_frame_mod;
+} __attribute__ ((packed));
+
+/* STA MAC */
+struct dot11_station_id {
+	struct acx_header header;
+
+	u8 mac[ETH_ALEN];
+	u8 pad[2];
+} __attribute__ ((packed));
+
+/* HW encryption keys */
+#define NUM_ACCESS_CATEGORIES_COPY 4
+#define MAX_KEY_SIZE 32
+
+/* When set, disable HW encryption */
+#define DF_ENCRYPTION_DISABLE      0x01
+/* When set, disable HW decryption */
+#define DF_SNIFF_MODE_ENABLE       0x80
+
+struct acx_feature_config {
+	struct acx_header header;
+
+	u32 options;
+	u32 data_flow_options;
+} __attribute__ ((packed));
+
+enum acx_key_action {
+	KEY_ADD_OR_REPLACE = 1,
+	KEY_REMOVE         = 2,
+	KEY_SET_ID         = 3,
+	MAX_KEY_ACTION     = 0xffff,
+};
+
+enum acx_key_type {
+	KEY_WEP_DEFAULT       = 0,
+	KEY_WEP_ADDR          = 1,
+	KEY_AES_GROUP         = 4,
+	KEY_AES_PAIRWISE      = 5,
+	KEY_WEP_GROUP         = 6,
+	KEY_TKIP_MIC_GROUP    = 10,
+	KEY_TKIP_MIC_PAIRWISE = 11,
+};
+
+/*
+ *
+ * key_type_e   key size    key format
+ * ----------   ---------   ----------
+ * 0x00         5, 13, 29   Key data
+ * 0x01         5, 13, 29   Key data
+ * 0x04         16          16 bytes of key data
+ * 0x05         16          16 bytes of key data
+ * 0x0a         32          16 bytes of TKIP key data
+ *                          8 bytes of RX MIC key data
+ *                          8 bytes of TX MIC key data
+ * 0x0b         32          16 bytes of TKIP key data
+ *                          8 bytes of RX MIC key data
+ *                          8 bytes of TX MIC key data
+ *
+ */
+
+struct acx_set_key {
+	/* Ignored for default WEP key */
+	u8 addr[ETH_ALEN];
+
+	/* key_action_e */
+	u16 key_action;
+
+	u16 reserved_1;
+
+	/* key size in bytes */
+	u8 key_size;
+
+	/* key_type_e */
+	u8 key_type;
+	u8 ssid_profile;
+
+	/*
+	 * TKIP, AES: frame's key id field.
+	 * For WEP default key: key id;
+	 */
+	u8 id;
+	u8 reserved_2[6];
+	u8 key[MAX_KEY_SIZE];
+	u16 ac_seq_num16[NUM_ACCESS_CATEGORIES_COPY];
+	u32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY];
+} __attribute__ ((packed));
+
+struct acx_current_tx_power {
+	struct acx_header header;
+
+	u8  current_tx_power;
+	u8  padding[3];
+} __attribute__ ((packed));
+
+struct acx_dot11_default_key {
+	struct acx_header header;
+
+	u8 id;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+struct acx_tsf_info {
+	struct acx_header header;
+
+	u32 current_tsf_msb;
+	u32 current_tsf_lsb;
+	u32 last_TBTT_msb;
+	u32 last_TBTT_lsb;
+	u8 last_dtim_count;
+	u8 pad[3];
+} __attribute__ ((packed));
+
+/* 802.11 PS */
+enum acx_ps_mode {
+	STATION_ACTIVE_MODE,
+	STATION_POWER_SAVE_MODE
+};
+
+struct acx_ps_params {
+	u8 ps_mode; /* STATION_* */
+	u8 send_null_data; /* Do we have to send NULL data packet ? */
+	u8 retries; /* Number of retires for the initial NULL data packet */
+
+	 /*
+	  * TUs during which the target stays awake after switching
+	  * to power save mode.
+	  */
+	u8 hang_over_period;
+	u16 null_data_rate;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+enum acx_wake_up_event {
+	WAKE_UP_EVENT_BEACON_BITMAP	= 0x01, /* Wake on every Beacon*/
+	WAKE_UP_EVENT_DTIM_BITMAP	= 0x02,	/* Wake on every DTIM*/
+	WAKE_UP_EVENT_N_DTIM_BITMAP	= 0x04, /* Wake on every Nth DTIM */
+	WAKE_UP_EVENT_N_BEACONS_BITMAP	= 0x08, /* Wake on every Nth Beacon */
+	WAKE_UP_EVENT_BITS_MASK		= 0x0F
+};
+
+struct acx_wake_up_condition {
+	struct acx_header header;
+
+	u8 wake_up_event; /* Only one bit can be set */
+	u8 listen_interval;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+struct acx_aid {
+	struct acx_header header;
+
+	/*
+	 * To be set when associated with an AP.
+	 */
+	u16 aid;
+	u8 pad[2];
+} __attribute__ ((packed));
+
+enum acx_preamble_type {
+	ACX_PREAMBLE_LONG = 0,
+	ACX_PREAMBLE_SHORT = 1
+};
+
+struct acx_preamble {
+	struct acx_header header;
+	/*
+	 * When set, the WiLink transmits the frames with a short preamble and
+	 * when cleared, the WiLink transmits the frames with a long preamble.
+	 */
+	u8 preamble;
+	u8 padding[3];
+} __attribute__ ((packed));
+
+enum acx_ctsprotect_type {
+	CTSPROTECT_DISABLE = 0,
+	CTSPROTECT_ENABLE = 1
+};
+
+struct acx_ctsprotect {
+	struct acx_header header;
+	u8 ctsprotect;
+	u8 padding[3];
+} __attribute__ ((packed));
+
+struct acx_tx_statistics {
+	u32 internal_desc_overflow;
+}  __attribute__ ((packed));
+
+struct acx_rx_statistics {
+	u32 out_of_mem;
+	u32 hdr_overflow;
+	u32 hw_stuck;
+	u32 dropped;
+	u32 fcs_err;
+	u32 xfr_hint_trig;
+	u32 path_reset;
+	u32 reset_counter;
+} __attribute__ ((packed));
+
+struct acx_dma_statistics {
+	u32 rx_requested;
+	u32 rx_errors;
+	u32 tx_requested;
+	u32 tx_errors;
+}  __attribute__ ((packed));
+
+struct acx_isr_statistics {
+	/* host command complete */
+	u32 cmd_cmplt;
+
+	/* fiqisr() */
+	u32 fiqs;
+
+	/* (INT_STS_ND & INT_TRIG_RX_HEADER) */
+	u32 rx_headers;
+
+	/* (INT_STS_ND & INT_TRIG_RX_CMPLT) */
+	u32 rx_completes;
+
+	/* (INT_STS_ND & INT_TRIG_NO_RX_BUF) */
+	u32 rx_mem_overflow;
+
+	/* (INT_STS_ND & INT_TRIG_S_RX_RDY) */
+	u32 rx_rdys;
+
+	/* irqisr() */
+	u32 irqs;
+
+	/* (INT_STS_ND & INT_TRIG_TX_PROC) */
+	u32 tx_procs;
+
+	/* (INT_STS_ND & INT_TRIG_DECRYPT_DONE) */
+	u32 decrypt_done;
+
+	/* (INT_STS_ND & INT_TRIG_DMA0) */
+	u32 dma0_done;
+
+	/* (INT_STS_ND & INT_TRIG_DMA1) */
+	u32 dma1_done;
+
+	/* (INT_STS_ND & INT_TRIG_TX_EXC_CMPLT) */
+	u32 tx_exch_complete;
+
+	/* (INT_STS_ND & INT_TRIG_COMMAND) */
+	u32 commands;
+
+	/* (INT_STS_ND & INT_TRIG_RX_PROC) */
+	u32 rx_procs;
+
+	/* (INT_STS_ND & INT_TRIG_PM_802) */
+	u32 hw_pm_mode_changes;
+
+	/* (INT_STS_ND & INT_TRIG_ACKNOWLEDGE) */
+	u32 host_acknowledges;
+
+	/* (INT_STS_ND & INT_TRIG_PM_PCI) */
+	u32 pci_pm;
+
+	/* (INT_STS_ND & INT_TRIG_ACM_WAKEUP) */
+	u32 wakeups;
+
+	/* (INT_STS_ND & INT_TRIG_LOW_RSSI) */
+	u32 low_rssi;
+} __attribute__ ((packed));
+
+struct acx_wep_statistics {
+	/* WEP address keys configured */
+	u32 addr_key_count;
+
+	/* default keys configured */
+	u32 default_key_count;
+
+	u32 reserved;
+
+	/* number of times that WEP key not found on lookup */
+	u32 key_not_found;
+
+	/* number of times that WEP key decryption failed */
+	u32 decrypt_fail;
+
+	/* WEP packets decrypted */
+	u32 packets;
+
+	/* WEP decrypt interrupts */
+	u32 interrupt;
+} __attribute__ ((packed));
+
+#define ACX_MISSED_BEACONS_SPREAD 10
+
+struct acx_pwr_statistics {
+	/* the amount of enters into power save mode (both PD & ELP) */
+	u32 ps_enter;
+
+	/* the amount of enters into ELP mode */
+	u32 elp_enter;
+
+	/* the amount of missing beacon interrupts to the host */
+	u32 missing_bcns;
+
+	/* the amount of wake on host-access times */
+	u32 wake_on_host;
+
+	/* the amount of wake on timer-expire */
+	u32 wake_on_timer_exp;
+
+	/* the number of packets that were transmitted with PS bit set */
+	u32 tx_with_ps;
+
+	/* the number of packets that were transmitted with PS bit clear */
+	u32 tx_without_ps;
+
+	/* the number of received beacons */
+	u32 rcvd_beacons;
+
+	/* the number of entering into PowerOn (power save off) */
+	u32 power_save_off;
+
+	/* the number of entries into power save mode */
+	u16 enable_ps;
+
+	/*
+	 * the number of exits from power save, not including failed PS
+	 * transitions
+	 */
+	u16 disable_ps;
+
+	/*
+	 * the number of times the TSF counter was adjusted because
+	 * of drift
+	 */
+	u32 fix_tsf_ps;
+
+	/* Gives statistics about the spread continuous missed beacons.
+	 * The 16 LSB are dedicated for the PS mode.
+	 * The 16 MSB are dedicated for the PS mode.
+	 * cont_miss_bcns_spread[0] - single missed beacon.
+	 * cont_miss_bcns_spread[1] - two continuous missed beacons.
+	 * cont_miss_bcns_spread[2] - three continuous missed beacons.
+	 * ...
+	 * cont_miss_bcns_spread[9] - ten and more continuous missed beacons.
+	*/
+	u32 cont_miss_bcns_spread[ACX_MISSED_BEACONS_SPREAD];
+
+	/* the number of beacons in awake mode */
+	u32 rcvd_awake_beacons;
+} __attribute__ ((packed));
+
+struct acx_mic_statistics {
+	u32 rx_pkts;
+	u32 calc_failure;
+} __attribute__ ((packed));
+
+struct acx_aes_statistics {
+	u32 encrypt_fail;
+	u32 decrypt_fail;
+	u32 encrypt_packets;
+	u32 decrypt_packets;
+	u32 encrypt_interrupt;
+	u32 decrypt_interrupt;
+} __attribute__ ((packed));
+
+struct acx_event_statistics {
+	u32 heart_beat;
+	u32 calibration;
+	u32 rx_mismatch;
+	u32 rx_mem_empty;
+	u32 rx_pool;
+	u32 oom_late;
+	u32 phy_transmit_error;
+	u32 tx_stuck;
+} __attribute__ ((packed));
+
+struct acx_ps_statistics {
+	u32 pspoll_timeouts;
+	u32 upsd_timeouts;
+	u32 upsd_max_sptime;
+	u32 upsd_max_apturn;
+	u32 pspoll_max_apturn;
+	u32 pspoll_utilization;
+	u32 upsd_utilization;
+} __attribute__ ((packed));
+
+struct acx_rxpipe_statistics {
+	u32 rx_prep_beacon_drop;
+	u32 descr_host_int_trig_rx_data;
+	u32 beacon_buffer_thres_host_int_trig_rx_data;
+	u32 missed_beacon_host_int_trig_rx_data;
+	u32 tx_xfr_host_int_trig_rx_data;
+} __attribute__ ((packed));
+
+struct acx_statistics {
+	struct acx_header header;
+
+	struct acx_tx_statistics tx;
+	struct acx_rx_statistics rx;
+	struct acx_dma_statistics dma;
+	struct acx_isr_statistics isr;
+	struct acx_wep_statistics wep;
+	struct acx_pwr_statistics pwr;
+	struct acx_aes_statistics aes;
+	struct acx_mic_statistics mic;
+	struct acx_event_statistics event;
+	struct acx_ps_statistics ps;
+	struct acx_rxpipe_statistics rxpipe;
+} __attribute__ ((packed));
+
+enum {
+	ACX_WAKE_UP_CONDITIONS      = 0x0002,
+	ACX_MEM_CFG                 = 0x0003,
+	ACX_SLOT                    = 0x0004,
+	ACX_QUEUE_HEAD              = 0x0005, /* for MASTER mode only */
+	ACX_AC_CFG                  = 0x0007,
+	ACX_MEM_MAP                 = 0x0008,
+	ACX_AID                     = 0x000A,
+	ACX_RADIO_PARAM             = 0x000B, /* Not used */
+	ACX_CFG                     = 0x000C, /* Not used */
+	ACX_FW_REV                  = 0x000D,
+	ACX_MEDIUM_USAGE            = 0x000F,
+	ACX_RX_CFG                  = 0x0010,
+	ACX_TX_QUEUE_CFG            = 0x0011, /* FIXME: only used by wl1251 */
+	ACX_BSS_IN_PS               = 0x0012, /* for AP only */
+	ACX_STATISTICS              = 0x0013, /* Debug API */
+	ACX_FEATURE_CFG             = 0x0015,
+	ACX_MISC_CFG                = 0x0017, /* Not used */
+	ACX_TID_CFG                 = 0x001A,
+	ACX_BEACON_FILTER_OPT       = 0x001F,
+	ACX_LOW_RSSI                = 0x0020,
+	ACX_NOISE_HIST              = 0x0021,
+	ACX_HDK_VERSION             = 0x0022, /* ??? */
+	ACX_PD_THRESHOLD            = 0x0023,
+	ACX_DATA_PATH_PARAMS        = 0x0024, /* WO */
+	ACX_DATA_PATH_RESP_PARAMS   = 0x0024, /* RO */
+	ACX_CCA_THRESHOLD           = 0x0025,
+	ACX_EVENT_MBOX_MASK         = 0x0026,
+#ifdef FW_RUNNING_AS_AP
+	ACX_DTIM_PERIOD             = 0x0027, /* for AP only */
+#else
+	ACX_WR_TBTT_AND_DTIM        = 0x0027, /* STA only */
+#endif
+	ACX_ACI_OPTION_CFG          = 0x0029, /* OBSOLETE (for 1251)*/
+	ACX_GPIO_CFG                = 0x002A, /* Not used */
+	ACX_GPIO_SET                = 0x002B, /* Not used */
+	ACX_PM_CFG                  = 0x002C, /* To Be Documented */
+	ACX_CONN_MONIT_PARAMS       = 0x002D,
+	ACX_AVERAGE_RSSI            = 0x002E, /* Not used */
+	ACX_CONS_TX_FAILURE         = 0x002F,
+	ACX_BCN_DTIM_OPTIONS        = 0x0031,
+	ACX_SG_ENABLE               = 0x0032,
+	ACX_SG_CFG                  = 0x0033,
+	ACX_ANTENNA_DIVERSITY_CFG   = 0x0035, /* To Be Documented */
+	ACX_LOW_SNR		    = 0x0037, /* To Be Documented */
+	ACX_BEACON_FILTER_TABLE     = 0x0038,
+	ACX_ARP_IP_FILTER           = 0x0039,
+	ACX_ROAMING_STATISTICS_TBL  = 0x003B,
+	ACX_RATE_POLICY             = 0x003D,
+	ACX_CTS_PROTECTION          = 0x003E,
+	ACX_SLEEP_AUTH              = 0x003F,
+	ACX_PREAMBLE_TYPE	    = 0x0040,
+	ACX_ERROR_CNT               = 0x0041,
+	ACX_FW_GEN_FRAME_RATES      = 0x0042,
+	ACX_IBSS_FILTER		    = 0x0044,
+	ACX_SERVICE_PERIOD_TIMEOUT  = 0x0045,
+	ACX_TSF_INFO                = 0x0046,
+	ACX_CONFIG_PS_WMM           = 0x0049,
+	ACX_ENABLE_RX_DATA_FILTER   = 0x004A,
+	ACX_SET_RX_DATA_FILTER      = 0x004B,
+	ACX_GET_DATA_FILTER_STATISTICS = 0x004C,
+	ACX_POWER_LEVEL_TABLE       = 0x004D,
+	ACX_BET_ENABLE              = 0x0050,
+	DOT11_STATION_ID            = 0x1001,
+	DOT11_RX_MSDU_LIFE_TIME     = 0x1004,
+	DOT11_CUR_TX_PWR            = 0x100D,
+	DOT11_DEFAULT_KEY           = 0x1010,
+	DOT11_RX_DOT11_MODE         = 0x1012,
+	DOT11_RTS_THRESHOLD         = 0x1013,
+	DOT11_GROUP_ADDRESS_TBL     = 0x1014,
+
+	MAX_DOT11_IE = DOT11_GROUP_ADDRESS_TBL,
+
+	MAX_IE = 0xFFFF
+};
+
+
+int wl12xx_acx_frame_rates(struct wl12xx *wl, u8 ctrl_rate, u8 ctrl_mod,
+			   u8 mgt_rate, u8 mgt_mod);
+int wl12xx_acx_station_id(struct wl12xx *wl);
+int wl12xx_acx_default_key(struct wl12xx *wl, u8 key_id);
+int wl12xx_acx_wake_up_conditions(struct wl12xx *wl, u8 listen_interval);
+int wl12xx_acx_sleep_auth(struct wl12xx *wl, u8 sleep_auth);
+int wl12xx_acx_fw_version(struct wl12xx *wl, char *buf, size_t len);
+int wl12xx_acx_tx_power(struct wl12xx *wl, int power);
+int wl12xx_acx_feature_cfg(struct wl12xx *wl);
+int wl12xx_acx_mem_map(struct wl12xx *wl, void *mem_map, size_t len);
+int wl12xx_acx_data_path_params(struct wl12xx *wl,
+				struct acx_data_path_params_resp *data_path);
+int wl12xx_acx_rx_msdu_life_time(struct wl12xx *wl, u32 life_time);
+int wl12xx_acx_rx_config(struct wl12xx *wl, u32 config, u32 filter);
+int wl12xx_acx_pd_threshold(struct wl12xx *wl);
+int wl12xx_acx_slot(struct wl12xx *wl, enum acx_slot_type slot_time);
+int wl12xx_acx_group_address_tbl(struct wl12xx *wl);
+int wl12xx_acx_service_period_timeout(struct wl12xx *wl);
+int wl12xx_acx_rts_threshold(struct wl12xx *wl, u16 rts_threshold);
+int wl12xx_acx_beacon_filter_opt(struct wl12xx *wl);
+int wl12xx_acx_beacon_filter_table(struct wl12xx *wl);
+int wl12xx_acx_sg_enable(struct wl12xx *wl);
+int wl12xx_acx_sg_cfg(struct wl12xx *wl);
+int wl12xx_acx_cca_threshold(struct wl12xx *wl);
+int wl12xx_acx_bcn_dtim_options(struct wl12xx *wl);
+int wl12xx_acx_aid(struct wl12xx *wl, u16 aid);
+int wl12xx_acx_event_mbox_mask(struct wl12xx *wl, u32 event_mask);
+int wl12xx_acx_set_preamble(struct wl12xx *wl, enum acx_preamble_type preamble);
+int wl12xx_acx_cts_protect(struct wl12xx *wl,
+			    enum acx_ctsprotect_type ctsprotect);
+int wl12xx_acx_statistics(struct wl12xx *wl, struct acx_statistics *stats);
+
+#endif /* __WL12XX_ACX_H__ */