path: root/drivers/net/wireless/rt2x00/rt2x00.h

/*
	Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
	Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
	Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
	<http://rt2x00.serialmonkey.com>

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	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.,
	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*
	Module: rt2x00
	Abstract: rt2x00 global information.
 */

#ifndef RT2X00_H
#define RT2X00_H

#include <linux/bitops.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/firmware.h>
#include <linux/leds.h>
#include <linux/mutex.h>
#include <linux/etherdevice.h>
#include <linux/input-polldev.h>
#include <linux/kfifo.h>

#include <net/mac80211.h>

#include "rt2x00debug.h"
#include "rt2x00dump.h"
#include "rt2x00leds.h"
#include "rt2x00reg.h"
#include "rt2x00queue.h"

/*
 * Module information.
 */
#define DRV_VERSION	"2.3.0"
#define DRV_PROJECT	"http://rt2x00.serialmonkey.com"

/*
 * Debug definitions.
 * Debug output has to be enabled during compile time.
 */
#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...)	\
	printk(__kernlvl "%s -> %s: %s - " __msg,			\
	       wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args)

#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...)	\
	printk(__kernlvl "%s -> %s: %s - " __msg,		\
	       KBUILD_MODNAME, __func__, __lvl, ##__args)

#ifdef CONFIG_RT2X00_DEBUG
#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...)	\
	DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args)
#else
#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...)	\
	do { } while (0)
#endif /* CONFIG_RT2X00_DEBUG */

/*
 * Various debug levels.
 * The debug levels PANIC and ERROR both indicate serious problems,
 * for this reason they should never be ignored.
 * The special ERROR_PROBE message is for messages that are generated
 * when the rt2x00_dev is not yet initialized.
 */
#define PANIC(__dev, __msg, __args...) \
	DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
#define ERROR(__dev, __msg, __args...)	\
	DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
#define ERROR_PROBE(__msg, __args...) \
	DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
#define WARNING(__dev, __msg, __args...) \
	DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
#define NOTICE(__dev, __msg, __args...) \
	DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
#define INFO(__dev, __msg, __args...) \
	DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
#define DEBUG(__dev, __msg, __args...) \
	DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
#define EEPROM(__dev, __msg, __args...) \
	DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)

/*
 * Duration calculations
 * The rate variable passed is: 100kbs.
 * To convert from bytes to bits we multiply size with 8,
 * then the size is multiplied with 10 to make the
 * real rate -> rate argument correction.
 */
#define GET_DURATION(__size, __rate)	(((__size) * 8 * 10) / (__rate))
#define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))

/*
 * Determine the number of L2 padding bytes required between the header and
 * the payload.
 */
#define L2PAD_SIZE(__hdrlen)	(-(__hdrlen) & 3)

/*
 * Determine the alignment requirement,
 * to make sure the 802.11 payload is padded to a 4-byte boundrary
 * we must determine the address of the payload and calculate the
 * amount of bytes needed to move the data.
 */
#define ALIGN_SIZE(__skb, __header) \
	(  ((unsigned long)((__skb)->data + (__header))) & 3 )

/*
 * Constants for extra TX headroom for alignment purposes.
 */
#define RT2X00_ALIGN_SIZE	4 /* Only whole frame needs alignment */
#define RT2X00_L2PAD_SIZE	8 /* Both header & payload need alignment */

/*
 * Standard timing and size defines.
 * These values should follow the ieee80211 specifications.
 */
#define ACK_SIZE		14
#define IEEE80211_HEADER	24
#define PLCP			48
#define BEACON			100
#define PREAMBLE		144
#define SHORT_PREAMBLE		72
#define SLOT_TIME		20
#define SHORT_SLOT_TIME		9
#define SIFS			10
#define PIFS			( SIFS + SLOT_TIME )
#define SHORT_PIFS		( SIFS + SHORT_SLOT_TIME )
#define DIFS			( PIFS + SLOT_TIME )
#define SHORT_DIFS		( SHORT_PIFS + SHORT_SLOT_TIME )
#define EIFS			( SIFS + DIFS + \
				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
#define SHORT_EIFS		( SIFS + SHORT_DIFS + \
				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )

/*
 * Structure for average calculation
 * The avg field contains the actual average value,
 * but avg_weight is internally used during calculations
 * to prevent rounding errors.
 */
struct avg_val {
	int avg;
	int avg_weight;
};

enum rt2x00_chip_intf {
	RT2X00_CHIP_INTF_PCI,
	RT2X00_CHIP_INTF_PCIE,
	RT2X00_CHIP_INTF_USB,
	RT2X00_CHIP_INTF_SOC,
};

/*
 * Chipset identification
 * The chipset on the device is composed of a RT and RF chip.
 * The chipset combination is important for determining device capabilities.
 */
struct rt2x00_chip {
	u16 rt;
#define RT2460		0x2460
#define RT2560		0x2560
#define RT2570		0x2570
#define RT2661		0x2661
#define RT2573		0x2573
#define RT2860		0x2860	/* 2.4GHz */
#define RT2872		0x2872	/* WSOC */
#define RT2883		0x2883	/* WSOC */
#define RT3070		0x3070
#define RT3071		0x3071
#define RT3090		0x3090	/* 2.4GHz PCIe */
#define RT3390		0x3390
#define RT3572		0x3572
#define RT3593		0x3593	/* PCIe */
#define RT3883		0x3883	/* WSOC */
#define RT5390         0x5390  /* 2.4GHz */

	u16 rf;
	u16 rev;

	enum rt2x00_chip_intf intf;
};

/*
 * RF register values that belong to a particular channel.
 */
struct rf_channel {
	int channel;
	u32 rf1;
	u32 rf2;
	u32 rf3;
	u32 rf4;
};

/*
 * Channel information structure
 */
<