Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (25 commits)
  staging: at76_usb wireless driver
  Staging: workaround build system bug
  Staging: Lindent sxg.c
  Staging: SLICOSS: Call pci_release_regions at driver exit
  Staging: SLICOSS: Fix remaining type names
  Staging: SLICOSS: Fix warnings due to static usage
  Staging: SLICOSS: lots of checkpatch fixes
  Staging: go7007 v4l fixes
  Staging: Fix gcc warnings in sxg
  Staging: add echo cancelation module
  Staging: add wlan-ng prism2 usb driver
  Staging: add w35und wifi driver
  Staging: USB/IP: add host driver
  Staging: USB/IP: add client driver
  Staging: USB/IP: add common functions needed
  Staging: add the go7007 video driver
  Staging: add me4000 pci data collection driver
  Staging: add me4000 firmware files
  Staging: add sxg network driver
  Staging: add Alacritech slicoss network driver
  ...

Fixed up conflicts due to taint flags changes and MAINTAINERS cleanup in
MAINTAINERS, include/linux/kernel.h and kernel/panic.c.

Documentation/sysctl/kernel.txt

@@ -369,4 +369,5 @@ can be ORed together:
   2 - A module was force loaded by insmod -f.
       Set by modutils >= 2.4.9 and module-init-tools.
   4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
+ 64 - A module from drivers/staging was loaded.
 

MAINTAINERS

@@ -3937,7 +3937,7 @@ M:	jbglaw@lug-owl.de
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 
-STABLE BRANCH:
+STABLE BRANCH
 P:	Greg Kroah-Hartman
 M:	greg@kroah.com
 P:	Chris Wright
@@ -3945,6 +3945,13 @@ M:	chrisw@sous-sol.org
 L:	stable@kernel.org
 S:	Maintained
 
+STAGING SUBSYSTEM
+P:	Greg Kroah-Hartman
+M:	gregkh@suse.de
+L:	linux-kernel@vger.kernel.org
+T:	quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
+S:	Maintained
+
 STARFIRE/DURALAN NETWORK DRIVER
 P:	Ion Badulescu
 M:	ionut@cs.columbia.edu

drivers/Kconfig

@@ -101,4 +101,6 @@ source "drivers/auxdisplay/Kconfig"
 source "drivers/uio/Kconfig"
 
 source "drivers/xen/Kconfig"
+
+source "drivers/staging/Kconfig"
 endmenu

drivers/Makefile

@@ -99,3 +99,4 @@ obj-$(CONFIG_OF)		+= of/
 obj-$(CONFIG_SSB)		+= ssb/
 obj-$(CONFIG_VIRTIO)		+= virtio/
 obj-$(CONFIG_REGULATOR)		+= regulator/
+obj-$(CONFIG_STAGING)		+= staging/

drivers/staging/Kconfig

+menuconfig STAGING
+	bool "Staging drivers"
+	default n
+	---help---
+	  This option allows you to select a number of drivers that are
+	  not of the "normal" Linux kernel quality level.  These drivers
+	  are placed here in order to get a wider audience for use of
+	  them.  Please note that these drivers are under heavy
+	  development, may or may not work, and may contain userspace
+	  interfaces that most likely will be changed in the near
+	  future.
+
+	  Using any of these drivers will taint your kernel which might
+	  affect support options from both the community, and various
+	  commercial support orginizations.
+
+	  If you wish to work on these drivers, to help improve them, or
+	  to report problems you have with them, please see the
+	  driver_name.README file in the drivers/staging/ directory to
+	  see what needs to be worked on, and who to contact.
+
+	  If in doubt, say N here.
+
+if STAGING
+
+source "drivers/staging/et131x/Kconfig"
+
+source "drivers/staging/slicoss/Kconfig"
+
+source "drivers/staging/sxg/Kconfig"
+
+source "drivers/staging/me4000/Kconfig"
+
+source "drivers/staging/go7007/Kconfig"
+
+source "drivers/staging/usbip/Kconfig"
+
+source "drivers/staging/winbond/Kconfig"
+
+source "drivers/staging/wlan-ng/Kconfig"
+
+source "drivers/staging/echo/Kconfig"
+
+source "drivers/staging/at76_usb/Kconfig"
+
+endif # STAGING

drivers/staging/Makefile

+# Makefile for staging directory
+
+# fix for build system bug...
+obj-$(CONFIG_STAGING)		+= staging.o
+
+obj-$(CONFIG_ET131X)		+= et131x/
+obj-$(CONFIG_SLICOSS)		+= slicoss/
+obj-$(CONFIG_SXG)		+= sxg/
+obj-$(CONFIG_ME4000)		+= me4000/
+obj-$(CONFIG_VIDEO_GO7007)	+= go7007/
+obj-$(CONFIG_USB_IP_COMMON)	+= usbip/
+obj-$(CONFIG_W35UND)		+= winbond/
+obj-$(CONFIG_PRISM2_USB)	+= wlan-ng/
+obj-$(CONFIG_ECHO)		+= echo/
+obj-$(CONFIG_USB_ATMEL)		+= at76_usb/

drivers/staging/at76_usb/Kconfig

+config USB_ATMEL
+	tristate "Atmel at76c503/at76c505/at76c505a USB cards"
+	depends on WLAN_80211 && USB
+	default N
+	select FW_LOADER
+	---help---
+	  Enable support for USB Wireless devices using Atmel at76c503,
+	  at76c505 or at76c505a chips.

drivers/staging/at76_usb/Makefile

+obj-$(CONFIG_USB_ATMEL)		+= at76_usb.o

drivers/staging/at76_usb/TODO

+rewrite the driver to use the proper in-kernel wireless stack
+instead of using its own.

drivers/staging/at76_usb/at76_usb.h

+/*
+ * Copyright (c) 2002,2003 Oliver Kurth
+ *	     (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de>
+ *	     (c) 2007 Guido Guenther <agx@sigxcpu.org>
+ *
+ * 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 driver was based on information from the Sourceforge driver
+ * released and maintained by Atmel:
+ *
+ *  http://sourceforge.net/projects/atmelwlandriver/
+ *
+ * Although the code was completely re-written,
+ * it would have been impossible without Atmel's decision to
+ * release an Open Source driver (unfortunately the firmware was
+ * kept binary only). Thanks for that decision to Atmel!
+ */
+
+#ifndef _AT76_USB_H
+#define _AT76_USB_H
+
+/* Board types */
+enum board_type {
+	BOARD_503_ISL3861 = 1,
+	BOARD_503_ISL3863 = 2,
+	BOARD_503 = 3,
+	BOARD_503_ACC = 4,
+	BOARD_505 = 5,
+	BOARD_505_2958 = 6,
+	BOARD_505A = 7,
+	BOARD_505AMX = 8
+};
+
+/* our private ioctl's */
+/* preamble length (0 - long, 1 - short, 2 - auto) */
+#define AT76_SET_SHORT_PREAMBLE		(SIOCIWFIRSTPRIV + 0)
+#define AT76_GET_SHORT_PREAMBLE		(SIOCIWFIRSTPRIV + 1)
+/* which debug channels are enabled */
+#define AT76_SET_DEBUG			(SIOCIWFIRSTPRIV + 2)
+#define AT76_GET_DEBUG			(SIOCIWFIRSTPRIV + 3)
+/* power save mode (incl. the Atmel proprietary smart save mode) */
+#define AT76_SET_POWERSAVE_MODE		(SIOCIWFIRSTPRIV + 4)
+#define AT76_GET_POWERSAVE_MODE		(SIOCIWFIRSTPRIV + 5)
+/* min and max channel times for scan */
+#define AT76_SET_SCAN_TIMES		(SIOCIWFIRSTPRIV + 6)
+#define AT76_GET_SCAN_TIMES		(SIOCIWFIRSTPRIV + 7)
+/* scan mode (0 - active, 1 - passive) */
+#define AT76_SET_SCAN_MODE		(SIOCIWFIRSTPRIV + 8)
+#define AT76_GET_SCAN_MODE		(SIOCIWFIRSTPRIV + 9)
+
+#define CMD_STATUS_IDLE				0x00
+#define CMD_STATUS_COMPLETE			0x01
+#define CMD_STATUS_UNKNOWN			0x02
+#define CMD_STATUS_INVALID_PARAMETER		0x03
+#define CMD_STATUS_FUNCTION_NOT_SUPPORTED	0x04
+#define CMD_STATUS_TIME_OUT			0x07
+#define CMD_STATUS_IN_PROGRESS			0x08
+#define CMD_STATUS_HOST_FAILURE			0xff
+#define CMD_STATUS_SCAN_FAILED			0xf0
+
+/* answers to get op mode */
+#define OPMODE_NONE				0x00
+#define OPMODE_NORMAL_NIC_WITH_FLASH		0x01
+#define OPMODE_HW_CONFIG_MODE			0x02
+#define OPMODE_DFU_MODE_WITH_FLASH		0x03
+#define OPMODE_NORMAL_NIC_WITHOUT_FLASH		0x04
+
+#define CMD_SET_MIB		0x01
+#define CMD_GET_MIB		0x02
+#define CMD_SCAN		0x03
+#define CMD_JOIN		0x04
+#define CMD_START_IBSS		0x05
+#define CMD_RADIO_ON		0x06
+#define CMD_RADIO_OFF		0x07
+#define CMD_STARTUP		0x0B
+
+#define MIB_LOCAL		0x01
+#define MIB_MAC_ADDR		0x02
+#define MIB_MAC			0x03
+#define MIB_MAC_MGMT		0x05
+#define MIB_MAC_WEP		0x06
+#define MIB_PHY			0x07
+#define MIB_FW_VERSION		0x08
+#define MIB_MDOMAIN		0x09
+
+#define ADHOC_MODE		1
+#define INFRASTRUCTURE_MODE	2
+
+/* values for struct mib_local, field preamble_type */
+#define PREAMBLE_TYPE_LONG	0
+#define PREAMBLE_TYPE_SHORT	1
+#define PREAMBLE_TYPE_AUTO	2
+
+/* values for tx_rate */
+#define TX_RATE_1MBIT		0
+#define TX_RATE_2MBIT		1
+#define TX_RATE_5_5MBIT 	2
+#define TX_RATE_11MBIT		3
+#define TX_RATE_AUTO		4
+
+/* power management modes */
+#define AT76_PM_OFF		1
+#define AT76_PM_ON		2
+#define AT76_PM_SMART		3
+
+struct hwcfg_r505 {
+	u8 cr39_values[14];
+	u8 reserved1[14];
+	u8 bb_cr[14];
+	u8 pidvid[4];
+	u8 mac_addr[ETH_ALEN];
+	u8 regulatory_domain;
+	u8 reserved2[14];
+	u8 cr15_values[14];
+	u8 reserved3[3];
+} __attribute__((packed));
+
+struct hwcfg_rfmd {
+	u8 cr20_values[14];
+	u8 cr21_values[14];
+	u8 bb_cr[14];
+	u8 pidvid[4];
+	u8 mac_addr[ETH_ALEN];
+	u8 regulatory_domain;
+	u8 low_power_values[14];
+	u8 normal_power_values[14];
+	u8 reserved1[3];
+} __attribute__((packed));
+
+struct hwcfg_intersil {
+	u8 mac_addr[ETH_ALEN];
+	u8 cr31_values[14];
+	u8 cr58_values[14];
+	u8 pidvid[4];
+	u8 regulatory_domain;
+	u8 reserved[1];
+} __attribute__((packed));
+
+union at76_hwcfg {
+	struct hwcfg_intersil i;
+	struct hwcfg_rfmd r3;
+	struct hwcfg_r505 r5;
+};
+
+#define WEP_SMALL_KEY_LEN	(40 / 8)
+#define WEP_LARGE_KEY_LEN	(104 / 8)
+
+struct at76_card_config {
+	u8 exclude_unencrypted;
+	u8 promiscuous_mode;
+	u8 short_retry_limit;
+	u8 encryption_type;
+	__le16 rts_threshold;
+	__le16 fragmentation_threshold;	/* 256..2346 */
+	u8 basic_rate_set[4];
+	u8 auto_rate_fallback;	/* 0,1 */
+	u8 channel;
+	u8 privacy_invoked;
+	u8 wep_default_key_id;	/* 0..3 */
+	u8 current_ssid[32];
+	u8 wep_default_key_value[4][WEP_KEY_LEN];
+	u8 ssid_len;
+	u8 short_preamble;
+	__le16 beacon_period;
+} __attribute__((packed));
+
+struct at76_command {
+	u8 cmd;
+	u8 reserved;
+	__le16 size;
+	u8 data[0];
+} __attribute__((packed));
+
+/* Length of Atmel-specific Rx header before 802.11 frame */
+#define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet)
+
+struct at76_rx_buffer {
+	__le16 wlength;
+	u8 rx_rate;
+	u8 newbss;
+	u8 fragmentation;
+	u8 rssi;
+	u8 link_quality;
+	u8 noise_level;
+	__le32 rx_time;
+	u8 packet[IEEE80211_FRAME_LEN + IEEE80211_FCS_LEN];
+} __attribute__((packed));
+
+/* Length of Atmel-specific Tx header before 802.11 frame */
+#define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet)
+
+struct at76_tx_buffer {
+	__le16 wlength;
+	u8 tx_rate;
+	u8 padding;
+	u8 reserved[4];
+	u8 packet[IEEE80211_FRAME_LEN + IEEE80211_FCS_LEN];
+} __attribute__((packed));
+
+/* defines for scan_type below */
+#define SCAN_TYPE_ACTIVE	0
+#define SCAN_TYPE_PASSIVE	1
+
+struct at76_req_scan {
+	u8 bssid[ETH_ALEN];
+	u8 essid[32];
+	u8 scan_type;
+	u8 channel;
+	__le16 probe_delay;
+	__le16 min_channel_time;
+	__le16 max_channel_time;
+	u8 essid_size;
+	u8 international_scan;
+} __attribute__((packed));
+
+struct at76_req_ibss {
+	u8 bssid[ETH_ALEN];
+	u8 essid[32];
+	u8 bss_type;
+	u8 channel;
+	u8 essid_size;
+	u8 reserved[3];
+} __attribute__((packed));
+
+struct at76_req_join {
+	u8 bssid[ETH_ALEN];
+	u8 essid[32];
+	u8 bss_type;
+	u8 channel;
+	__le16 timeout;
+	u8 essid_size;
+	u8 reserved;
+} __attribute__((packed));
+
+struct set_mib_buffer {
+	u8 type;
+	u8 size;
+	u8 index;
+	u8 reserved;
+	union {
+		u8 byte;
+		__le16 word;
+		u8 addr[ETH_ALEN];
+	} data;
+} __attribute__((packed));
+
+struct mib_local {
+	u16 reserved0;
+	u8 beacon_enable;
+	u8 txautorate_fallback;
+	u8 reserved1;
+	u8 ssid_size;
+	u8 promiscuous_mode;
+	u16 reserved2;
+	u8 preamble_type;
+	u16 reserved3;
+} __attribute__((packed));
+
+struct mib_mac_addr {
+	u8 mac_addr[ETH_ALEN];
+	u8 res[2];		/* ??? */
+	u8 group_addr[4][ETH_ALEN];
+	u8 group_addr_status[4];
+} __attribute__((packed));
+
+struct mib_mac {
+	__le32 max_tx_msdu_lifetime;
+	__le32 max_rx_lifetime;
+	__le16 frag_threshold;
+	__le16 rts_threshold;
+	__le16 cwmin;
+	__le16 cwmax;
+	u8 short_retry_time;
+	u8 long_retry_time;
+	u8 scan_type;		/* active or passive */
+	u8 scan_channel;
+	__le16 probe_delay;	/* delay before ProbeReq in active scan, RO */
+	__le16 min_channel_time;
+	__le16 max_channel_time;
+	__le16 listen_interval;
+	u8 desired_ssid[32];
+	u8 desired_bssid[ETH_ALEN];
+	u8 desired_bsstype;	/* ad-hoc or infrastructure */
+	u8 reserved2;
+} __attribute__((packed));
+
+struct mib_mac_mgmt {
+	__le16 beacon_period;
+	__le16 CFP_max_duration;
+	__le16 medium_occupancy_limit;
+	__le16 station_id;	/* assoc id */
+	__le16 ATIM_window;
+	u8 CFP_mode;
+	u8 privacy_option_implemented;
+	u8 DTIM_period;
+	u8 CFP_period;
+	u8 current_bssid[ETH_ALEN];
+	u8 current_essid[32];
+	u8 current_bss_type;
+	u8 power_mgmt_mode;
+	/* rfmd and 505 */
+	u8 ibss_change;
+	u8 res;
+	u8 multi_domain_capability_implemented;
+	u8 multi_domain_capability_enabled;
+	u8 country_string[3];
+	u8 reserved[3];
+} __attribute__((packed));
+
+struct mib_mac_wep {
+	u8 privacy_invoked;	/* 0 disable encr., 1 enable encr */
+	u8 wep_default_key_id;
+	u8 wep_key_mapping_len;
+	u8 exclude_unencrypted;
+	__le32 wep_icv_error_count;
+	__le32 wep_excluded_count;
+	u8 wep_default_keyvalue[WEP_KEYS][WEP_KEY_LEN];
+	u8 encryption_level;	/* 1 for 40bit, 2 for 104bit encryption */
+} __attribute__((packed));
+
+struct mib_phy {
+	__le32 ed_threshold;
+
+	__le16 slot_time;
+	__le16 sifs_time;
+	__le16 preamble_length;
+	__le16 plcp_header_length;
+	__le16 mpdu_max_length;
+	__le16 cca_mode_supported;
+
+	u8 operation_rate_set[4];
+	u8 channel_id;
+	u8 current_cca_mode;
+	u8 phy_type;
+	u8 current_reg_domain;
+} __attribute__((packed));
+
+struct mib_fw_version {
+	u8 major;
+	u8 minor;
+	u8 patch;
+	u8 build;
+} __attribute__((packed));
+
+struct mib_mdomain {
+	u8 tx_powerlevel[14];
+	u8 channel_list[14];	/* 0 for invalid channels */
+} __attribute__((packed));
+
+struct at76_fw_header {
+	__le32 crc;		/* CRC32 of the whole image */
+	__le32 board_type;	/* firmware compatibility code */
+	u8 build;		/* firmware build number */
+	u8 patch;		/* firmware patch level */
+	u8 minor;		/* firmware minor version */
+	u8 major;		/* firmware major version */
+	__le32 str_offset;	/* offset of the copyright string */
+	__le32 int_fw_offset;	/* internal firmware image offset */
+	__le32 int_fw_len;	/* internal firmware image length */
+	__le32 ext_fw_offset;	/* external firmware image offset */
+	__le32 ext_fw_len;	/* external firmware image length */
+} __attribute__((packed));
+
+enum mac_state {
+	MAC_INIT,
+	MAC_SCANNING,
+	MAC_AUTH,
+	MAC_ASSOC,
+	MAC_JOINING,
+	MAC_CONNECTED,
+	MAC_OWN_IBSS
+};
+
+/* a description of a regulatory domain and the allowed channels */
+struct reg_domain {
+	u16 code;
+	char const *name;
+	u32 channel_map;	/* if bit N is set, channel (N+1) is allowed */
+};
+
+/* how long do we keep a (I)BSS in the bss_list in jiffies
+   this should be long enough for the user to retrieve the table
+   (by iwlist ?) after the device started, because all entries from
+   other channels than the one the device locks on get removed, too */
+#define BSS_LIST_TIMEOUT	(120 * HZ)
+/* struct to store BSS info found during scan */
+#define BSS_LIST_MAX_RATE_LEN	32	/* 32 rates should be enough ... */
+
+struct bss_info {
+	struct list_head list;
+
+	u8 bssid[ETH_ALEN];	/* bssid */
+	u8 ssid[IW_ESSID_MAX_SIZE];	/* essid */
+	u8 ssid_len;		/* length of ssid above */
+	u8 channel;
+	u16 capa;		/* BSS capabilities */
+	u16 beacon_interval;	/* beacon interval, Kus (1024 microseconds) */
+	u8 rates[BSS_LIST_MAX_RATE_LEN];	/* supported rates in units of
+						   500 kbps, ORed with 0x80 for
+						   basic rates */
+	u8 rates_len;
+
+	/* quality of received beacon */
+	u8 rssi;
+	u8 link_qual;
+	u8 noise_level;
+
+	unsigned long last_rx;	/* time (jiffies) of last beacon received */
+};
+
+/* a rx data buffer to collect rx fragments */
+struct rx_data_buf {
+	u8 sender[ETH_ALEN];	/* sender address */
+	u16 seqnr;		/* sequence number */
+	u16 fragnr;		/* last fragment received */
+	unsigned long last_rx;	/* jiffies of last rx */
+	struct sk_buff *skb;	/* == NULL if entry is free */
+};
+
+#define NR_RX_DATA_BUF		8
+
+/* Data for one loaded firmware file */
+struct fwentry {
+	const char *const fwname;
+	const struct firmware *fw;
+	int extfw_size;
+	int intfw_size;
+	/* pointer to loaded firmware, no need to free */
+	u8 *extfw;		/* external firmware, extfw_size bytes long */
+	u8 *intfw;		/* internal firmware, intfw_size bytes long */
+	enum board_type board_type;	/* board type */
+	struct mib_fw_version fw_version;
+	int loaded;		/* Loaded and parsed successfully */
+};
+
+struct at76_priv {
+	struct usb_device *udev;	/* USB device pointer */
+	struct net_device *netdev;	/* net device pointer */
+	struct net_device_stats stats;	/* net device stats */
+	struct iw_statistics wstats;	/* wireless stats */
+
+	struct sk_buff *rx_skb;	/* skbuff for receiving data */
+	void *bulk_out_buffer;	/* buffer for sending data */
+
+	struct urb *tx_urb;	/* URB for sending data */
+	struct urb *rx_urb;	/* URB for receiving data */
+
+	unsigned int tx_pipe;	/* bulk out pipe */
+	unsigned int rx_pipe;	/* bulk in pipe */
+
+	struct mutex mtx;	/* locks this structure */
+
+	/* work queues */
+	struct work_struct work_assoc_done;
+	struct work_struct work_join;
+	struct work_struct work_new_bss;
+	struct work_struct work_start_scan;
+	struct work_struct work_set_promisc;
+	struct work_struct work_submit_rx;
+	struct delayed_work dwork_restart;
+	struct delayed_work dwork_get_scan;
+	struct delayed_work dwork_beacon;
+	struct delayed_work dwork_auth;
+	struct delayed_work dwork_assoc;
+
+	struct tasklet_struct rx_tasklet;
+
+	/* the WEP stuff */
+	int wep_enabled;	/* 1 if WEP is enabled */
+	int wep_key_id;		/* key id to be used */
+	u8 wep_keys[WEP_KEYS][WEP_KEY_LEN];	/* the four WEP keys,
+						   5 or 13 bytes are used */
+	u8 wep_keys_len[WEP_KEYS];	/* the length of the above keys */
+
+	int channel;
+	int iw_mode;
+	u8 bssid[ETH_ALEN];
+	u8 essid[IW_ESSID_MAX_SIZE];
+	int essid_size;
+	int radio_on;
+	int promisc;
+
+	int preamble_type;	/* 0 - long, 1 - short, 2 - auto */
+	int auth_mode;		/* authentication type: 0 open, 1 shared key */
+	int txrate;		/* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */
+	int frag_threshold;	/* threshold for fragmentation of tx packets */
+	int rts_threshold;	/* threshold for RTS mechanism */
+	int short_retry_limit;
+
+	int scan_min_time;	/* scan min channel time */
+	int scan_max_time;	/* scan max channel time */
+	int scan_mode;		/* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */
+	int scan_need_any;	/* if set, need to scan for any ESSID */
+
+	/* the list we got from scanning */
+	spinlock_t bss_list_spinlock;	/* protects bss_list operations */
+	struct list_head bss_list;	/* list of BSS we got beacons from */
+	struct timer_list bss_list_timer;	/* timer to purge old entries
+						   from bss_list */
+	struct bss_info *curr_bss;	/* current BSS */
+	u16 assoc_id;		/* current association ID, if associated */
+
+	u8 wanted_bssid[ETH_ALEN];
+	int wanted_bssid_valid;	/* != 0 if wanted_bssid is to be used */
+
+	/* some data for infrastructure mode only */
+	spinlock_t mgmt_spinlock;	/* this spinlock protects access to
+					   next_mgmt_bulk */
+
+	struct at76_tx_buffer *next_mgmt_bulk;	/* pending management msg to
+						   send via bulk out */
+	enum mac_state mac_state;
+	enum {
+		SCAN_IDLE,
+		SCAN_IN_PROGRESS,
+		SCAN_COMPLETED
+	} scan_state;
+	time_t last_scan;
+
+	int retries;		/* remaining retries in case of timeout when
+				 * sending AuthReq or AssocReq */
+	u8 pm_mode;		/* power management mode */
+	u32 pm_period;		/* power management period in microseconds */
+
+	struct reg_domain const *domain;	/* reg domain description */
+
+	/* iwspy support */
+	spinlock_t spy_spinlock;
+	struct iw_spy_data spy_data;
+
+	struct iw_public_data wireless_data;
+
+	/* These fields contain HW config provided by the device (not all of
+	 * these fields are used by all board types) */
+	u8 mac_addr[ETH_ALEN];
+	u8 regulatory_domain;
+
+	struct at76_card_config card_config;
+
+	/* store rx fragments until complete */
+	struct rx_data_buf rx_data[NR_RX_DATA_BUF];
+
+	enum board_type board_type;
+	struct mib_fw_version fw_version;
+
+	unsigned int device_unplugged:1;
+	unsigned int netdev_registered:1;
+	struct set_mib_buffer mib_buf;	/* global buffer for set_mib calls */
+
+	/* beacon counting */
+	int beacon_period;	/* period of mgmt beacons, Kus */
+	int beacons_received;
+	unsigned long beacons_last_qual;	/* time we restarted counting
+						   beacons */
+};
+
+struct at76_rx_radiotap {
+	struct ieee80211_radiotap_header rt_hdr;
+	__le64 rt_tsft;
+	u8 rt_flags;
+	u8 rt_rate;
+	s8 rt_signal;
+	s8 rt_noise;
+};
+
+#define AT76_RX_RADIOTAP_PRESENT		  \
+	((1 << IEEE80211_RADIOTAP_TSFT)		| \
+	(1 << IEEE80211_RADIOTAP_FLAGS)		| \
+	(1 << IEEE80211_RADIOTAP_RATE)		| \
+	(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)	| \
+	(1 << IEEE80211_RADIOTAP_DB_ANTNOISE))
+
+#define BEACON_MAX_DATA_LENGTH	1500
+
+/* the maximum size of an AssocReq packet */
+#define ASSOCREQ_MAX_SIZE \
+  (AT76_TX_HDRLEN + sizeof(struct ieee80211_assoc_request) + \
+   1 + 1 + IW_ESSID_MAX_SIZE + 1 + 1 + 4)
+
+/* for shared secret auth, add the challenge text size */
+#define AUTH_FRAME_SIZE (AT76_TX_HDRLEN + sizeof(struct ieee80211_auth))
+
+/* Maximal number of AuthReq retries */
+#define AUTH_RETRIES		3
+
+/* Maximal number of AssocReq retries */
+#define ASSOC_RETRIES		3
+
+/* Beacon timeout in managed mode when we are connected */
+#define BEACON_TIMEOUT		(10 * HZ)
+
+/* Timeout for authentication response */
+#define AUTH_TIMEOUT		(1 * HZ)
+
+/* Timeout for association response */
+#define ASSOC_TIMEOUT		(1 * HZ)
+
+/* Polling interval when scan is running */
+#define SCAN_POLL_INTERVAL	(HZ / 4)
+
+/* Command completion timeout */
+#define CMD_COMPLETION_TIMEOUT	(5 * HZ)
+
+#define DEF_RTS_THRESHOLD	1536
+#define DEF_FRAG_THRESHOLD	1536
+#define DEF_SHORT_RETRY_LIMIT	8
+#define DEF_CHANNEL		10
+#define DEF_SCAN_MIN_TIME	10
+#define DEF_SCAN_MAX_TIME	120
+
+#define MAX_RTS_THRESHOLD	(MAX_FRAG_THRESHOLD + 1)
+
+/* the max padding size for tx in bytes (see calc_padding) */
+#define MAX_PADDING_SIZE	53
+
+#endif				/* _AT76_USB_H */

drivers/staging/echo/Kconfig

+config ECHO
+	tristate "Line Echo Canceller support"
+	default n
+	---help---
+	  This driver provides line echo cancelling support for mISDN and
+	  Zaptel drivers.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called echo.

drivers/staging/echo/Makefile

+obj-$(CONFIG_ECHO) += echo.o

drivers/staging/echo/TODO

+TODO:
+	- checkpatch.pl cleanups
+	- Lindent
+	- typedef removals
+	- handle bit_operations.h (merge in or make part of common code?)
+	- remove proc interface, only use echo.h interface (proc interface is
+	  racy and not correct.)
+
+Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc: Steve
+Underwood <steveu@coppice.org> and David Rowe <david@rowetel.com>

drivers/staging/echo/bit_operations.h

+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * bit_operations.h - Various bit level operations, such as bit reversal
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2006 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: bit_operations.h,v 1.11 2006/11/28 15:37:03 steveu Exp $
+ */
+
+/*! \file */
+
+#if !defined(_BIT_OPERATIONS_H_)
+#define _BIT_OPERATIONS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__i386__)  ||  defined(__x86_64__)
+/*! \brief Find the bit position of the highest set bit in a word
+    \param bits The word to be searched
+    \return The bit number of the highest set bit, or -1 if the word is zero. */
+static __inline__ int top_bit(unsigned int bits)
+{
+    int res;
+
+    __asm__ (" xorl %[res],%[res];\n"
+             " decl %[res];\n"
+             " bsrl %[bits],%[res]\n"
+             : [res] "=&r" (res)
+             : [bits] "rm" (bits));
+    return res;
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Find the bit position of the lowest set bit in a word
+    \param bits The word to be searched
+    \return The bit number of the lowest set bit, or -1 if the word is zero. */
+static __inline__ int bottom_bit(unsigned int bits)
+{
+    int res;
+
+    __asm__ (" xorl %[res],%[res];\n"
+             " decl %[res];\n"
+             " bsfl %[bits],%[res]\n"
+             : [res] "=&r" (res)
+             : [bits] "rm" (bits));
+    return res;
+}
+/*- End of function --------------------------------------------------------*/
+#else
+static __inline__ int top_bit(unsigned int bits)
+{
+    int i;
+
+    if (bits == 0)
+        return -1;
+    i = 0;
+    if (bits & 0xFFFF0000)
+    {
+        bits &= 0xFFFF0000;
+        i += 16;
+    }
+    if (bits & 0xFF00FF00)
+    {
+        bits &= 0xFF00FF00;
+        i += 8;
+    }
+    if (bits & 0xF0F0F0F0)
+    {
+        bits &= 0xF0F0F0F0;
+        i += 4;
+    }
+    if (bits & 0xCCCCCCCC)
+    {
+        bits &= 0xCCCCCCCC;
+        i += 2;
+    }
+    if (bits & 0xAAAAAAAA)
+    {
+        bits &= 0xAAAAAAAA;
+        i += 1;
+    }
+    return i;
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ int bottom_bit(unsigned int bits)
+{
+    int i;
+
+    if (bits == 0)
+        return -1;
+    i = 32;
+    if (bits & 0x0000FFFF)
+    {
+        bits &= 0x0000FFFF;
+        i -= 16;
+    }
+    if (bits & 0x00FF00FF)
+    {
+        bits &= 0x00FF00FF;
+        i -= 8;
+    }
+    if (bits & 0x0F0F0F0F)
+    {
+        bits &= 0x0F0F0F0F;
+        i -= 4;
+    }
+    if (bits & 0x33333333)
+    {
+        bits &= 0x33333333;
+        i -= 2;
+    }
+    if (bits & 0x55555555)
+    {
+        bits &= 0x55555555;
+        i -= 1;
+    }
+    return i;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+/*! \brief Bit reverse a byte.
+    \param data The byte to be reversed.
+    \return The bit reversed version of data. */
+static __inline__ uint8_t bit_reverse8(uint8_t x)
+{
+#if defined(__i386__)  ||  defined(__x86_64__)
+    /* If multiply is fast */
+    return ((x*0x0802U & 0x22110U) | (x*0x8020U & 0x88440U))*0x10101U >> 16;
+#else
+    /* If multiply is slow, but we have a barrel shifter */
+    x = (x >> 4) | (x << 4);
+    x = ((x & 0xCC) >> 2) | ((x & 0x33) << 2);
+    return ((x & 0xAA) >> 1) | ((x & 0x55) << 1);
+#endif
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Bit reverse a 16 bit word.
+    \param data The word to be reversed.
+    \return The bit reversed version of data. */
+uint16_t bit_reverse16(uint16_t data);
+
+/*! \brief Bit reverse a 32 bit word.
+    \param data The word to be reversed.
+    \return The bit reversed version of data. */
+uint32_t bit_reverse32(uint32_t data);
+
+/*! \brief Bit reverse each of the four bytes in a 32 bit word.
+    \param data The word to be reversed.
+    \return The bit reversed version of data. */
+uint32_t bit_reverse_4bytes(uint32_t data);
+
+/*! \brief Find the number of set bits in a 32 bit word.
+    \param x The word to be searched.
+    \return The number of set bits. */
+int one_bits32(uint32_t x);
+
+/*! \brief Create a mask as wide as the number in a 32 bit word.
+    \param x The word to be searched.
+    \return The mask. */
+uint32_t make_mask32(uint32_t x);
+
+/*! \brief Create a mask as wide as the number in a 16 bit word.
+    \param x The word to be searched.
+    \return The mask. */
+uint16_t make_mask16(uint16_t x);
+
+/*! \brief Find the least significant one in a word, and return a word
+           with just that bit set.
+    \param x The word to be searched.
+    \return The word with the single set bit. */
+static __inline__ uint32_t least_significant_one32(uint32_t x)
+{
+    return (x & (-(int32_t) x));
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Find the most significant one in a word, and return a word
+           with just that bit set.
+    \param x The word to be searched.
+    \return The word with the single set bit. */
+static __inline__ uint32_t most_significant_one32(uint32_t x)
+{
+#if defined(__i386__)  ||  defined(__x86_64__)
+    return 1 << top_bit(x);
+#else
+    x = make_mask32(x);
+    return (x ^ (x >> 1));
+#endif
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Find the parity of a byte.
+    \param x The byte to be checked.
+    \return 1 for odd, or 0 for even. */
+static __inline__ int parity8(uint8_t x)
+{
+    x = (x ^ (x >> 4)) & 0x0F;
+    return (0x6996 >> x) & 1;
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Find the parity of a 16 bit word.
+    \param x The word to be checked.
+    \return 1 for odd, or 0 for even. */
+static __inline__ int parity16(uint16_t x)
+{
+    x ^= (x >> 8);
+    x = (x ^ (x >> 4)) & 0x0F;
+    return (0x6996 >> x) & 1;
+}
+/*- End of function --------------------------------------------------------*/
+
+/*! \brief Find the parity of a 32 bit word.
+    \param x The word to be checked.
+    \return 1 for odd, or 0 for even. */
+static __inline__ int parity32(uint32_t x)
+{
+    x ^= (x >> 16);
+    x ^= (x >> 8);
+    x = (x ^ (x >> 4)) & 0x0F;
+    return (0x6996 >> x) & 1;
+}
+/*- End of function --------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*- End of file ------------------------------------------------------------*/

drivers/staging/echo/echo.h

+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * echo.c - A line echo canceller.  This code is being developed
+ *          against and partially complies with G168.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *         and David Rowe <david_at_rowetel_dot_com>
+ *
+ * Copyright (C) 2001 Steve Underwood and 2007 David Rowe
+ *
+ * All rights reserved.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: echo.h,v 1.9 2006/10/24 13:45:28 steveu Exp $
+ */
+
+#ifndef __ECHO_H
+#define __ECHO_H
+
+/*! \page echo_can_page Line echo cancellation for voice
+
+\section echo_can_page_sec_1 What does it do?
+This module aims to provide G.168-2002 compliant echo cancellation, to remove
+electrical echoes (e.g. from 2-4 wire hybrids) from voice calls.
+
+\section echo_can_page_sec_2 How does it work?
+The heart of the echo cancellor is FIR filter. This is adapted to match the
+echo impulse response of the telephone line. It must be long enough to
+adequately cover the duration of that impulse response. The signal transmitted
+to the telephone line is passed through the FIR filter. Once the FIR is
+properly adapted, the resulting output is an estimate of the echo signal
+received from the line. This is subtracted from the received signal. The result
+is an estimate of the signal which originated at the far end of the line, free
+from echos of our own transmitted signal.
+
+The least mean squares (LMS) algorithm is attributed to Widrow and Hoff, and
+was introduced in 1960. It is the commonest form of filter adaption used in
+things like modem line equalisers and line echo cancellers. There it works very
+well.  However, it only works well for signals of constant amplitude. It works
+very poorly for things like speech echo cancellation, where the signal level
+varies widely.  This is quite easy to fix. If the signal level is normalised -
+similar to applying AGC - LMS can work as well for a signal of varying
+amplitude as it does for a modem signal. This normalised least mean squares
+(NLMS) algorithm is the commonest one used for speech echo cancellation. Many
+other algorithms exist - e.g. RLS (essentially the same as Kalman filtering),
+FAP, etc. Some perform significantly better than NLMS.  However, factors such
+as computational complexity and patents favour the use of NLMS.
+
+A simple refinement to NLMS can improve its performance with speech. NLMS tends
+to adapt best to the strongest parts of a signal. If the signal is white noise,
+the NLMS algorithm works very well. However, speech has more low frequency than
+high frequency content. Pre-whitening (i.e. filtering the signal to flatten its
+spectrum) the echo signal improves the adapt rate for speech, and ensures the
+final residual signal is not heavily biased towards high frequencies. A very
+low complexity filter is adequate for this, so pre-whitening adds little to the
+compute requirements of the echo canceller.
+
+An FIR filter adapted using pre-whitened NLMS performs well, provided certain
+conditions are met:
+
+    - The transmitted signal has poor self-correlation.
+    - There is no signal being generated within the environment being
+      cancelled.
+
+The difficulty is that neither of these can be guaranteed.
+
+If the adaption is performed while transmitting noise (or something fairly
+noise like, such as voice) the adaption works very well. If the adaption is
+performed while transmitting something highly correlative (typically narrow
+band energy such as signalling tones or DTMF), the adaption can go seriously
+wrong. The reason is there is only one solution for the adaption on a near
+random signal - the impulse response of the line. For a repetitive signal,
+there are any number of solutions which converge the adaption, and nothing
+guides the adaption to choose the generalised one. Allowing an untrained
+canceller to converge on this kind of narrowband energy probably a good thing,
+since at least it cancels the tones. Allowing a well converged canceller to
+continue converging on such energy is just a way to ruin its generalised
+adaption. A narrowband detector is needed, so adapation can be suspended at
+appropriate times.
+
+The adaption process is based on trying to eliminate the received signal. When
+there is any signal from within the environment being cancelled it may upset
+the adaption process. Similarly, if the signal we are transmitting is small,
+noise may dominate and disturb the adaption process. If we can ensure that the
+adaption is only performed when we are transmitting a significant signal level,
+and the environment is not, things will be OK. Clearly, it is easy to tell when
+we are sending a significant signal. Telling, if the environment is generating
+a significant signal, and doing it with sufficient speed that the adaption will
+not have diverged too much more we stop it, is a little harder.
+
+The key problem in detecting when the environment is sourcing significant
+energy is that we must do this very quickly. Given a reasonably long sample of
+the received signal, there are a number of strategies which may be used to
+assess whether that signal contains a strong far end component. However, by the
+time that assessment is complete the far end signal will have already caused
+major mis-convergence in the adaption process. An assessment algorithm is
+needed which produces a fairly accurate result from a very short burst of far
+end energy.
+
+\section echo_can_page_sec_3 How do I use it?
+The echo cancellor processes both the transmit and receive streams sample by
+sample. The processing function is not declared inline. Unfortunately,
+cancellation requires many operations per sample, so the call overhead is only
+a minor burden.
+*/
+
+#include "fir.h"
+
+/* Mask bits for the adaption mode */
+#define ECHO_CAN_USE_ADAPTION	0x01
+#define ECHO_CAN_USE_NLP	0x02
+#define ECHO_CAN_USE_CNG	0x04
+#define ECHO_CAN_USE_CLIP	0x08
+#define ECHO_CAN_USE_TX_HPF	0x10
+#define ECHO_CAN_USE_RX_HPF	0x20
+#define ECHO_CAN_DISABLE	0x40
+
+/*!
+    G.168 echo canceller descriptor. This defines the working state for a line
+    echo canceller.
+*/
+typedef struct
+{
+	int16_t tx,rx;
+	int16_t clean;
+	int16_t clean_nlp;
+
+	int nonupdate_dwell;
+	int curr_pos;
+	int taps;
+	int log2taps;
+	int adaption_mode;
+
+	int cond_met;
+	int32_t Pstates;
+	int16_t adapt;
+	int32_t factor;
+	int16_t shift;
+
+	/* Average levels and averaging filter states */
+	int Ltxacc, Lrxacc, Lcleanacc, Lclean_bgacc;
+	int Ltx, Lrx;
+	int Lclean;
+	int Lclean_bg;
+	int Lbgn, Lbgn_acc, Lbgn_upper, Lbgn_upper_acc;
+
+	/* foreground and background filter states */
+	fir16_state_t fir_state;
+	fir16_state_t fir_state_bg;
+	int16_t *fir_taps16[2];
+
+	/* DC blocking filter states */
+	int tx_1, tx_2, rx_1, rx_2;
+
+	/* optional High Pass Filter states */
+	int32_t xvtx[5], yvtx[5];
+	int32_t xvrx[5], yvrx[5];
+
+	/* Parameters for the optional Hoth noise generator */
+	int cng_level;
+	int cng_rndnum;
+	int cng_filter;
+
+	/* snapshot sample of coeffs used for development */
+	int16_t *snapshot;
+} echo_can_state_t;
+
+/*! Create a voice echo canceller context.
+    \param len The length of the canceller, in samples.
+    \return The new canceller context, or NULL if the canceller could not be created.
+*/
+echo_can_state_t *echo_can_create(int len, int adaption_mode);
+
+/*! Free a voice echo canceller context.
+    \param ec The echo canceller context.
+*/
+void echo_can_free(echo_can_state_t *ec);
+
+/*! Flush (reinitialise) a voice echo canceller context.
+    \param ec The echo canceller context.
+*/
+void echo_can_flush(echo_can_state_t *ec);
+
+/*! Set the adaption mode of a voice echo canceller context.
+    \param ec The echo canceller context.
+    \param adapt The mode.
+*/
+void echo_can_adaption_mode(echo_can_state_t *ec, int adaption_mode);
+
+void echo_can_snapshot(echo_can_state_t *ec);
+
+/*! Process a sample through a voice echo canceller.
+    \param ec The echo canceller context.
+    \param tx The transmitted audio sample.
+    \param rx The received audio sample.
+    \return The clean (echo cancelled) received sample.
+*/
+int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t rx);
+
+/*! Process to high pass filter the tx signal.
+    \param ec The echo canceller context.
+    \param tx The transmitted auio sample.
+    \return The HP filtered transmit sample, send this to your D/A.
+*/
+int16_t echo_can_hpf_tx(echo_can_state_t *ec, int16_t tx);
+
+#endif	/* __ECHO_H */

drivers/staging/echo/fir.h

+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * fir.h - General telephony FIR routines
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2002 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: fir.h,v 1.8 2006/10/24 13:45:28 steveu Exp $
+ */
+
+/*! \page fir_page FIR filtering
+\section fir_page_sec_1 What does it do?
+???.
+
+\section fir_page_sec_2 How does it work?
+???.
+*/
+
+#if !defined(_FIR_H_)
+#define _FIR_H_
+
+/*
+   Blackfin NOTES & IDEAS:
+
+   A simple dot product function is used to implement the filter.  This performs
+   just one MAC/cycle which is inefficient but was easy to implement as a first
+   pass.  The current Blackfin code also uses an unrolled form of the filter
+   history to avoid 0 length hardware loop issues.  This is wasteful of
+   memory.
+
+   Ideas for improvement:
+
+   1/ Rewrite filter for dual MAC inner loop.  The issue here is handling
+   history sample offsets that are 16 bit aligned - the dual MAC needs
+   32 bit aligmnent.  There are some good examples in libbfdsp.
+
+   2/ Use the hardware circular buffer facility tohalve memory usage.
+
+   3/ Consider using internal memory.
+
+   Using less memory might also improve speed as cache misses will be
+   reduced. A drop in MIPs and memory approaching 50% should be
+   possible.
+
+   The foreground and background filters currenlty use a total of
+   about 10 MIPs/ch as measured with speedtest.c on a 256 TAP echo
+   can.
+*/
+
+#if defined(USE_MMX)  ||  defined(USE_SSE2)
+#include "mmx.h"
+#endif
+
+/*!
+    16 bit integer FIR descriptor. This defines the working state for a single
+    instance of an FIR filter using 16 bit integer coefficients.
+*/
+typedef struct
+{
+	int taps;
+	int curr_pos;
+	const int16_t *coeffs;
+	int16_t *history;
+} fir16_state_t;
+
+/*!
+    32 bit integer FIR descriptor. This defines the working state for a single
+    instance of an FIR filter using 32 bit integer coefficients, and filtering
+    16 bit integer data.
+*/
+typedef struct
+{
+	int taps;
+	int curr_pos;
+	const int32_t *coeffs;
+	int16_t *history;
+} fir32_state_t;
+
+/*!
+    Floating point FIR descriptor. This defines the working state for a single
+    instance of an FIR filter using floating point coefficients and data.
+*/
+typedef struct
+{
+	int taps;
+	int curr_pos;
+	const float *coeffs;
+	float *history;
+} fir_float_state_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static __inline__ const int16_t *fir16_create(fir16_state_t *fir,
+                                              const int16_t *coeffs,
+                                              int taps)
+{
+	fir->taps = taps;
+	fir->curr_pos = taps - 1;
+	fir->coeffs = coeffs;
+#if defined(USE_MMX)  ||  defined(USE_SSE2) || defined(__BLACKFIN_ASM__)
+	if ((fir->history = malloc(2*taps*sizeof(int16_t))))
+		memset(fir->history, 0, 2*taps*sizeof(int16_t));
+#else
+	if ((fir->history = (int16_t *) malloc(taps*sizeof(int16_t))))
+		memset(fir->history, 0, taps*sizeof(int16_t));
+#endif
+	return fir->history;
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void fir16_flush(fir16_state_t *fir)
+{
+#if defined(USE_MMX)  ||  defined(USE_SSE2) || defined(__BLACKFIN_ASM__)
+    memset(fir->history, 0, 2*fir->taps*sizeof(int16_t));
+#else
+    memset(fir->history, 0, fir->taps*sizeof(int16_t));
+#endif
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void fir16_free(fir16_state_t *fir)
+{
+	free(fir->history);
+}
+/*- End of function --------------------------------------------------------*/
+
+#ifdef __BLACKFIN_ASM__
+static inline int32_t dot_asm(short *x, short *y, int len)
+{
+   int dot;
+
+   len--;
+
+   __asm__
+   (
+   "I0 = %1;\n\t"
+   "I1 = %2;\n\t"
+   "A0 = 0;\n\t"
+   "R0.L = W[I0++] || R1.L = W[I1++];\n\t"
+   "LOOP dot%= LC0 = %3;\n\t"
+   "LOOP_BEGIN dot%=;\n\t"
+      "A0 += R0.L * R1.L (IS) || R0.L = W[I0++] || R1.L = W[I1++];\n\t"
+   "LOOP_END dot%=;\n\t"
+   "A0 += R0.L*R1.L (IS);\n\t"
+   "R0 = A0;\n\t"
+   "%0 = R0;\n\t"
+   : "=&d" (dot)
+   : "a" (x), "a" (y), "a" (len)
+   : "I0", "I1", "A1", "A0", "R0", "R1"
+   );
+
+   return dot;
+}
+#endif
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ int16_t fir16(fir16_state_t *fir, int16_t sample)
+{
+    int32_t y;
+#if defined(USE_MMX)
+    int i;
+    mmx_t *mmx_coeffs;
+    mmx_t *mmx_hist;
+
+    fir->history[fir->curr_pos] = sample;
+    fir->history[fir->curr_pos + fir->taps] = sample;
+
+    mmx_coeffs = (mmx_t *) fir->coeffs;
+    mmx_hist = (mmx_t *) &fir->history[fir->curr_pos];
+    i = fir->taps;
+    pxor_r2r(mm4, mm4);
+    /* 8 samples per iteration, so the filter must be a multiple of 8 long. */
+    while (i > 0)
+    {
+        movq_m2r(mmx_coeffs[0], mm0);
+        movq_m2r(mmx_coeffs[1], mm2);
+        movq_m2r(mmx_hist[0], mm1);
+        movq_m2r(mmx_hist[1], mm3);
+        mmx_coeffs += 2;
+        mmx_hist += 2;
+        pmaddwd_r2r(mm1, mm0);
+        pmaddwd_r2r(mm3, mm2);
+        paddd_r2r(mm0, mm4);
+        paddd_r2r(mm2, mm4);
+        i -= 8;
+    }
+    movq_r2r(mm4, mm0);
+    psrlq_i2r(32, mm0);
+    paddd_r2r(mm0, mm4);
+    movd_r2m(mm4, y);
+    emms();
+#elif defined(USE_SSE2)
+    int i;
+    xmm_t *xmm_coeffs;
+    xmm_t *xmm_hist;
+
+    fir->history[fir->curr_pos] = sample;
+    fir->history[fir->curr_pos + fir->taps] = sample;
+
+    xmm_coeffs = (xmm_t *) fir->coeffs;
+    xmm_hist = (xmm_t *) &fir->history[fir->curr_pos];
+    i = fir->taps;
+    pxor_r2r(xmm4, xmm4);
+    /* 16 samples per iteration, so the filter must be a multiple of 16 long. */
+    while (i > 0)
+    {
+        movdqu_m2r(xmm_coeffs[0], xmm0);
+        movdqu_m2r(xmm_coeffs[1], xmm2);
+        movdqu_m2r(xmm_hist[0], xmm1);
+        movdqu_m2r(xmm_hist[1], xmm3);
+        xmm_coeffs += 2;
+        xmm_hist += 2;
+        pmaddwd_r2r(xmm1, xmm0);
+        pmaddwd_r2r(xmm3, xmm2);
+        paddd_r2r(xmm0, xmm4);
+        paddd_r2r(xmm2, xmm4);
+        i -= 16;
+    }
+    movdqa_r2r(xmm4, xmm0);
+    psrldq_i2r(8, xmm0);
+    paddd_r2r(xmm0, xmm4);
+    movdqa_r2r(xmm4, xmm0);
+    psrldq_i2r(4, xmm0);
+    paddd_r2r(xmm0, xmm4);
+    movd_r2m(xmm4, y);
+#elif defined(__BLACKFIN_ASM__)
+    fir->history[fir->curr_pos] = sample;
+    fir->history[fir->curr_pos + fir->taps] = sample;
+    y = dot_asm((int16_t*)fir->coeffs, &fir->history[fir->curr_pos], fir->taps);
+#else
+    int i;
+    int offset1;
+    int offset2;
+
+    fir->history[fir->curr_pos] = sample;
+
+    offset2 = fir->curr_pos;
+    offset1 = fir->taps - offset2;
+    y = 0;
+    for (i = fir->taps - 1;  i >= offset1;  i--)
+        y += fir->coeffs[i]*fir->history[i - offset1];
+    for (  ;  i >= 0;  i--)
+        y += fir->coeffs[i]*fir->history[i + offset2];
+#endif
+    if (fir->curr_pos <= 0)
+    	fir->curr_pos = fir->taps;
+    fir->curr_pos--;
+    return (int16_t) (y >> 15);
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ const int16_t *fir32_create(fir32_state_t *fir,
+                                              const int32_t *coeffs,
+                                              int taps)
+{
+    fir->taps = taps;
+    fir->curr_pos = taps - 1;
+    fir->coeffs = coeffs;
+    fir->history = (int16_t *) malloc(taps*sizeof(int16_t));
+    if (fir->history)
+    	memset(fir->history, '\0', taps*sizeof(int16_t));
+    return fir->history;
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void fir32_flush(fir32_state_t *fir)
+{
+    memset(fir->history, 0, fir->taps*sizeof(int16_t));
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void fir32_free(fir32_state_t *fir)
+{
+    free(fir->history);
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ int16_t fir32(fir32_state_t *fir, int16_t sample)
+{
+    int i;
+    int32_t y;
+    int offset1;
+    int offset2;
+
+    fir->history[fir->curr_pos] = sample;
+    offset2 = fir->curr_pos;
+    offset1 = fir->taps - offset2;
+    y = 0;
+    for (i = fir->taps - 1;  i >= offset1;  i--)
+        y += fir->coeffs[i]*fir->history[i - offset1];
+    for (  ;  i >= 0;  i--)
+        y += fir->coeffs[i]*fir->history[i + offset2];
+    if (fir->curr_pos <= 0)
+    	fir->curr_pos = fir->taps;
+    fir->curr_pos--;
+    return (int16_t) (y >> 15);
+}
+/*- End of function --------------------------------------------------------*/
+
+#ifndef __KERNEL__
+static __inline__ const float *fir_float_create(fir_float_state_t *fir,
+                                                const float *coeffs,
+    	    	    	                        int taps)
+{
+    fir->taps = taps;
+    fir->curr_pos = taps - 1;
+    fir->coeffs = coeffs;
+    fir->history = (float *) malloc(taps*sizeof(float));
+    if (fir->history)
+        memset(fir->history, '\0', taps*sizeof(float));
+    return fir->history;
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ void fir_float_free(fir_float_state_t *fir)
+{
+    free(fir->history);
+}
+/*- End of function --------------------------------------------------------*/
+
+static __inline__ int16_t fir_float(fir_float_state_t *fir, int16_t sample)
+{
+    int i;
+    float y;
+    int offset1;
+    int offset2;
+
+    fir->history[fir->curr_pos] = sample;
+
+    offset2 = fir->curr_pos;
+    offset1 = fir->taps - offset2;
+    y = 0;
+    for (i = fir->taps - 1;  i >= offset1;  i--)
+        y += fir->coeffs[i]*fir->history[i - offset1];
+    for (  ;  i >= 0;  i--)
+        y += fir->coeffs[i]*fir->history[i + offset2];
+    if (fir->curr_pos <= 0)
+    	fir->curr_pos = fir->taps;
+    fir->curr_pos--;
+    return  (int16_t) y;
+}
+/*- End of function --------------------------------------------------------*/
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*- End of file ------------------------------------------------------------*/

drivers/staging/echo/mmx.h

+/*
+ * mmx.h
+ * Copyright (C) 1997-2001 H. Dietz and R. Fisher
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef AVCODEC_I386MMX_H
+#define AVCODEC_I386MMX_H
+
+/*
+ * The type of an value that fits in an MMX register (note that long
+ * long constant values MUST be suffixed by LL and unsigned long long
+ * values by ULL, lest they be truncated by the compiler)
+ */
+
+typedef        union {
+        long long               q;      /* Quadword (64-bit) value */
+        unsigned long long      uq;     /* Unsigned Quadword */
+        int                     d[2];   /* 2 Doubleword (32-bit) values */
+        unsigned int            ud[2];  /* 2 Unsigned Doubleword */
+        short                   w[4];   /* 4 Word (16-bit) values */
+        unsigned short          uw[4];  /* 4 Unsigned Word */
+        char                    b[8];   /* 8 Byte (8-bit) values */
+        unsigned char           ub[8];  /* 8 Unsigned Byte */
+        float                   s[2];   /* Single-precision (32-bit) value */
+} mmx_t;        /* On an 8-byte (64-bit) boundary */
+
+/* SSE registers */
+typedef union {
+	char b[16];
+} xmm_t;
+
+
+#define         mmx_i2r(op,imm,reg) \
+        __asm__ __volatile__ (#op " %0, %%" #reg \
+                              : /* nothing */ \
+                              : "i" (imm) )
+
+#define         mmx_m2r(op,mem,reg) \
+        __asm__ __volatile__ (#op " %0, %%" #reg \
+                              : /* nothing */ \
+                              : "m" (mem))
+
+#define         mmx_r2m(op,reg,mem) \
+        __asm__ __volatile__ (#op " %%" #reg ", %0" \
+                              : "=m" (mem) \
+                              : /* nothing */ )
+
+#define         mmx_r2r(op,regs,regd) \
+        __asm__ __volatile__ (#op " %" #regs ", %" #regd)
+
+
+#define         emms() __asm__ __volatile__ ("emms")
+
+#define         movd_m2r(var,reg)           mmx_m2r (movd, var, reg)
+#define         movd_r2m(reg,var)           mmx_r2m (movd, reg, var)
+#define         movd_r2r(regs,regd)         mmx_r2r (movd, regs, regd)
+
+#define         movq_m2r(var,reg)           mmx_m2r (movq, var, reg)
+#define         movq_r2m(reg,var)           mmx_r2m (movq, reg, var)
+#define         movq_r2r(regs,regd)         mmx_r2r (movq, regs, regd)
+
+#define         packssdw_m2r(var,reg)       mmx_m2r (packssdw, var, reg)
+#define         packssdw_r2r(regs,regd)     mmx_r2r (packssdw, regs, regd)
+#define         packsswb_m2r(var,reg)       mmx_m2r (packsswb, var, reg)
+#define         packsswb_r2r(regs,regd)     mmx_r2r (packsswb, regs, regd)
+
+#define         packuswb_m2r(var,reg)       mmx_m2r (packuswb, var, reg)
+#define         packuswb_r2r(regs,regd)     mmx_r2r (packuswb, regs, regd)
+
+#define         paddb_m2r(var,reg)          mmx_m2r (paddb, var, reg)
+#define         paddb_r2r(regs,regd)        mmx_r2r (paddb, regs, regd)
+#define         paddd_m2r(var,reg)          mmx_m2r (paddd, var, reg)
+#define         paddd_r2r(regs,regd)        mmx_r2r (paddd, regs, regd)
+#define         paddw_m2r(var,reg)          mmx_m2r (paddw, var, reg)
+#define         paddw_r2r(regs,regd)        mmx_r2r (paddw, regs, regd)
+
+#define         paddsb_m2r(var,reg)         mmx_m2r (paddsb, var, reg)
+#define         paddsb_r2r(regs,regd)       mmx_r2r (paddsb, regs, regd)
+#define         paddsw_m2r(var,reg)         mmx_m2r (paddsw, var, reg)
+#define         paddsw_r2r(regs,regd)       mmx_r2r (paddsw, regs, regd)
+
+#define         paddusb_m2r(var,reg)        mmx_m2r (paddusb, var, reg)
+#define         paddusb_r2r(regs,regd)      mmx_r2r (paddusb, regs, regd)
+#define         paddusw_m2r(var,reg)        mmx_m2r (paddusw, var, reg)
+#define         paddusw_r2r(regs,regd)      mmx_r2r (paddusw, regs, regd)
+
+#define         pand_m2r(var,reg)           mmx_m2r (pand, var, reg)
+#define         pand_r2r(regs,regd)         mmx_r2r (pand, regs, regd)
+
+#define         pandn_m2r(var,reg)          mmx_m2r (pandn, var, reg)
+#define         pandn_r2r(regs,regd)        mmx_r2r (pandn, regs, regd)
+
+#define         pcmpeqb_m2r(var,reg)        mmx_m2r (pcmpeqb, var, reg)
+#define         pcmpeqb_r2r(regs,regd)      mmx_r2r (pcmpeqb, regs, regd)
+#define         pcmpeqd_m2r(var,reg)        mmx_m2r (pcmpeqd, var, reg)
+#define         pcmpeqd_r2r(regs,regd)      mmx_r2r (pcmpeqd, regs, regd)
+#define         pcmpeqw_m2r(var,reg)        mmx_m2r (pcmpeqw, var, reg)
+#define         pcmpeqw_r2r(regs,regd)      mmx_r2r (pcmpeqw, regs, regd)
+
+#define         pcmpgtb_m2r(var,reg)        mmx_m2r (pcmpgtb, var, reg)
+#define         pcmpgtb_r2r(regs,regd)      mmx_r2r (pcmpgtb, regs, regd)
+#define         pcmpgtd_m2r(var,reg)        mmx_m2r (pcmpgtd, var, reg)
+#define         pcmpgtd_r2r(regs,regd)      mmx_r2r (pcmpgtd, regs, regd)
+#define         pcmpgtw_m2r(var,reg)        mmx_m2r (pcmpgtw, var, reg)
+#define         pcmpgtw_r2r(regs,regd)      mmx_r2r (pcmpgtw, regs, regd)
+
+#define         pmaddwd_m2r(var,reg)        mmx_m2r (pmaddwd, var, reg)
+#define         pmaddwd_r2r(regs,regd)      mmx_r2r (pmaddwd, regs, regd)
+
+#define         pmulhw_m2r(var,reg)         mmx_m2r (pmulhw, var, reg)
+#define         pmulhw_r2r(regs,regd)       mmx_r2r (pmulhw, regs, regd)
+
+#define         pmullw_m2r(var,reg)         mmx_m2r (pmullw, var, reg)
+#define         pmullw_r2r(regs,regd)       mmx_r2r (pmullw, regs, regd)
+
+#define         por_m2r(var,reg)            mmx_m2r (por, var, reg)
+#define         por_r2r(regs,regd)          mmx_r2r (por, regs, regd)
+
+#define         pslld_i2r(imm,reg)          mmx_i2r (pslld, imm, reg)
+#define         pslld_m2r(var,reg)          mmx_m2r (pslld, var, reg)
+#define         pslld_r2r(regs,regd)        mmx_r2r (pslld, regs, regd)
+#define         psllq_i2r(imm,reg)          mmx_i2r (psllq, imm, reg)
+#define         psllq_m2r(var,reg)          mmx_m2r (psllq, var, reg)
+#define         psllq_r2r(regs,regd)        mmx_r2r (psllq, regs, regd)
+#define         psllw_i2r(imm,reg)          mmx_i2r (psllw, imm, reg)
+#define         psllw_m2r(var,reg)          mmx_m2r (psllw, var, reg)
+#define         psllw_r2r(regs,regd)        mmx_r2r (psllw, regs, regd)
+
+#define         psrad_i2r(imm,reg)          mmx_i2r (psrad, imm, reg)
+#define         psrad_m2r(var,reg)          mmx_m2r (psrad, var, reg)
+#define         psrad_r2r(regs,regd)        mmx_r2r (psrad, regs, regd)
+#define         psraw_i2r(imm,reg)          mmx_i2r (psraw, imm, reg)
+#define         psraw_m2r(var,reg)          mmx_m2r (psraw, var, reg)
+#define         psraw_r2r(regs,regd)        mmx_r2r (psraw, regs, regd)
+
+#define         psrld_i2r(imm,reg)          mmx_i2r (psrld, imm, reg)
+#define         psrld_m2r(var,reg)          mmx_m2r (psrld, var, reg)
+#define         psrld_r2r(regs,regd)        mmx_r2r (psrld, regs, regd)
+#define         psrlq_i2r(imm,reg)          mmx_i2r (psrlq, imm, reg)
+#define         psrlq_m2r(var,reg)          mmx_m2r (psrlq, var, reg)
+#define         psrlq_r2r(regs,regd)        mmx_r2r (psrlq, regs, regd)
+#define         psrlw_i2r(imm,reg)          mmx_i2r (psrlw, imm, reg)
+#define         psrlw_m2r(var,reg)          mmx_m2r (psrlw, var, reg)
+#define         psrlw_r2r(regs,regd)        mmx_r2r (psrlw, regs, regd)
+
+#define         psubb_m2r(var,reg)          mmx_m2r (psubb, var, reg)
+#define         psubb_r2r(regs,regd)        mmx_r2r (psubb, regs, regd)
+#define         psubd_m2r(var,reg)          mmx_m2r (psubd, var, reg)
+#define         psubd_r2r(regs,regd)        mmx_r2r (psubd, regs, regd)
+#define         psubw_m2r(var,reg)          mmx_m2r (psubw, var, reg)
+#define         psubw_r2r(regs,regd)        mmx_r2r (psubw, regs, regd)
+
+#define         psubsb_m2r(var,reg)         mmx_m2r (psubsb, var, reg)
+#define         psubsb_r2r(regs,regd)       mmx_r2r (psubsb, regs, regd)
+#define         psubsw_m2r(var,reg)         mmx_m2r (psubsw, var, reg)
+#define         psubsw_r2r(regs,regd)       mmx_r2r (psubsw, regs, regd)
+
+#define         psubusb_m2r(var,reg)        mmx_m2r (psubusb, var, reg)
+#define         psubusb_r2r(regs,regd)      mmx_r2r (psubusb, regs, regd)
+#define         psubusw_m2r(var,reg)        mmx_m2r (psubusw, var, reg)
+#define         psubusw_r2r(regs,regd)      mmx_r2r (psubusw, regs, regd)
+
+#define         punpckhbw_m2r(var,reg)      mmx_m2r (punpckhbw, var, reg)
+#define         punpckhbw_r2r(regs,regd)    mmx_r2r (punpckhbw, regs, regd)
+#define         punpckhdq_m2r(var,reg)      mmx_m2r (punpckhdq, var, reg)
+#define         punpckhdq_r2r(regs,regd)    mmx_r2r (punpckhdq, regs, regd)
+#define         punpckhwd_m2r(var,reg)      mmx_m2r (punpckhwd, var, reg)
+#define         punpckhwd_r2r(regs,regd)    mmx_r2r (punpckhwd, regs, regd)
+
+#define         punpcklbw_m2r(var,reg)      mmx_m2r (punpcklbw, var, reg)
+#define         punpcklbw_r2r(regs,regd)    mmx_r2r (punpcklbw, regs, regd)
+#define         punpckldq_m2r(var,reg)      mmx_m2r (punpckldq, var, reg)
+#define         punpckldq_r2r(regs,regd)    mmx_r2r (punpckldq, regs, regd)
+#define         punpcklwd_m2r(var,reg)      mmx_m2r (punpcklwd, var, reg)
+#define         punpcklwd_r2r(regs,regd)    mmx_r2r (punpcklwd, regs, regd)
+
+#define         pxor_m2r(var,reg)           mmx_m2r (pxor, var, reg)
+#define         pxor_r2r(regs,regd)         mmx_r2r (pxor, regs, regd)
+
+
+/* 3DNOW extensions */
+
+#define         pavgusb_m2r(var,reg)        mmx_m2r (pavgusb, var, reg)
+#define         pavgusb_r2r(regs,regd)      mmx_r2r (pavgusb, regs, regd)
+
+
+/* AMD MMX extensions - also available in intel SSE */
+
+
+#define         mmx_m2ri(op,mem,reg,imm) \
+        __asm__ __volatile__ (#op " %1, %0, %%" #reg \
+                              : /* nothing */ \
+                              : "m" (mem), "i" (imm))
+#define         mmx_r2ri(op,regs,regd,imm) \
+        __asm__ __volatile__ (#op " %0, %%" #regs ", %%" #regd \
+                              : /* nothing */ \
+                              : "i" (imm) )
+
+#define         mmx_fetch(mem,hint) \
+        __asm__ __volatile__ ("prefetch" #hint " %0" \
+                              : /* nothing */ \
+                              : "m" (mem))
+
+
+#define         maskmovq(regs,maskreg)      mmx_r2ri (maskmovq, regs, maskreg)
+
+#define         movntq_r2m(mmreg,var)       mmx_r2m (movntq, mmreg, var)
+
+#define         pavgb_m2r(var,reg)          mmx_m2r (pavgb, var, reg)
+#define         pavgb_r2r(regs,regd)        mmx_r2r (pavgb, regs, regd)
+#define         pavgw_m2r(var,reg)          mmx_m2r (pavgw, var, reg)
+#define         pavgw_r2r(regs,regd)        mmx_r2r (pavgw, regs, regd)
+
+#define         pextrw_r2r(mmreg,reg,imm)   mmx_r2ri (pextrw, mmreg, reg, imm)
+
+#define         pinsrw_r2r(reg,mmreg,imm)   mmx_r2ri (pinsrw, reg, mmreg, imm)
+
+#define         pmaxsw_m2r(var,reg)         mmx_m2r (pmaxsw, var, reg)
+#define         pmaxsw_r2r(regs,regd)       mmx_r2r (pmaxsw, regs, regd)
+
+#define         pmaxub_m2r(var,reg)         mmx_m2r (pmaxub, var, reg)
+#define         pmaxub_r2r(regs,regd)       mmx_r2r (pmaxub, regs, regd)
+
+#define         pminsw_m2r(var,reg)         mmx_m2r (pminsw, var, reg)
+#define         pminsw_r2r(regs,regd)       mmx_r2r (pminsw, regs, regd)
+
+#define         pminub_m2r(var,reg)         mmx_m2r (pminub, var, reg)
+#define         pminub_r2r(regs,regd)       mmx_r2r (pminub, regs, regd)
+
+#define         pmovmskb(mmreg,reg) \
+        __asm__ __volatile__ ("movmskps %" #mmreg ", %" #reg)
+
+#define         pmulhuw_m2r(var,reg)        mmx_m2r (pmulhuw, var, reg)
+#define         pmulhuw_r2r(regs,regd)      mmx_r2r (pmulhuw, regs, regd)
+
+#define         prefetcht0(mem)             mmx_fetch (mem, t0)
+#define         prefetcht1(mem)             mmx_fetch (mem, t1)
+#define         prefetcht2(mem)             mmx_fetch (mem, t2)
+#define         prefetchnta(mem)            mmx_fetch (mem, nta)
+
+#define         psadbw_m2r(var,reg)         mmx_m2r (psadbw, var, reg)
+#define         psadbw_r2r(regs,regd)       mmx_r2r (psadbw, regs, regd)
+
+#define         pshufw_m2r(var,reg,imm)     mmx_m2ri(pshufw, var, reg, imm)
+#define         pshufw_r2r(regs,regd,imm)   mmx_r2ri(pshufw, regs, regd, imm)
+
+#define         sfence() __asm__ __volatile__ ("sfence\n\t")
+
+/* SSE2 */
+#define         pshufhw_m2r(var,reg,imm)    mmx_m2ri(pshufhw, var, reg, imm)
+#define         pshufhw_r2r(regs,regd,imm)  mmx_r2ri(pshufhw, regs, regd, imm)
+#define         pshuflw_m2r(var,reg,imm)    mmx_m2ri(pshuflw, var, reg, imm)
+#define         pshuflw_r2r(regs,regd,imm)  mmx_r2ri(pshuflw, regs, regd, imm)
+
+#define         pshufd_r2r(regs,regd,imm)   mmx_r2ri(pshufd, regs, regd, imm)
+
+#define         movdqa_m2r(var,reg)         mmx_m2r (movdqa, var, reg)
+#define         movdqa_r2m(reg,var)         mmx_r2m (movdqa, reg, var)
+#define         movdqa_r2r(regs,regd)       mmx_r2r (movdqa, regs, regd)
+#define         movdqu_m2r(var,reg)         mmx_m2r (movdqu, var, reg)
+#define         movdqu_r2m(reg,var)         mmx_r2m (movdqu, reg, var)
+#define         movdqu_r2r(regs,regd)       mmx_r2r (movdqu, regs, regd)
+
+#define         pmullw_r2m(reg,var)         mmx_r2m (pmullw, reg, var)
+
+#define         pslldq_i2r(imm,reg)         mmx_i2r (pslldq, imm, reg)
+#define         psrldq_i2r(imm,reg)         mmx_i2r (psrldq, imm, reg)
+
+#define         punpcklqdq_r2r(regs,regd)   mmx_r2r (punpcklqdq, regs, regd)
+#define         punpckhqdq_r2r(regs,regd)   mmx_r2r (punpckhqdq, regs, regd)
+
+
+#endif /* AVCODEC_I386MMX_H */

drivers/staging/et131x/Kconfig

+config ET131X
+	tristate "Agere ET-1310 Gigabit Ethernet support"
+	depends on NETDEV_1000 && PCI
+	default n
+	---help---
+	  This driver supports Agere ET-1310 ethernet adapters.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called et131x.
+
+config ET131X_DEBUG
+	bool "Enable et131x debugging"
+	depends on ET131X
+	default n
+	---help---
+	  Say Y for detailed debug information.
+
+	  If in doubt, say N.

drivers/staging/et131x/Makefile

+#
+# Makefile for the Agere ET-131x ethernet driver
+#
+
+obj-$(CONFIG_ET131X) += et131x.o
+
+et131x-objs :=	et1310_eeprom.o \
+		et1310_jagcore.o \
+		et1310_mac.o \
+		et1310_phy.o \
+		et1310_pm.o \
+		et1310_rx.o \
+		et1310_tx.o \
+		et131x_config.o \
+		et131x_debug.o \
+		et131x_initpci.o \
+		et131x_isr.o \
+		et131x_netdev.o

drivers/staging/et131x/README

+This is a driver for the ET1310 network device.
+
+Based on the driver found at https://sourceforge.net/projects/et131x/
+
+Cleaned up immensely by Olaf Hartman <o.hartmann@telovital.com> and Christoph
+Hellwig <hch@infradead.org>
+
+Note, the powermanagement options were removed from the vendor provided
+driver as they did not build properly at the time.
+
+TODO:
+	- kernel coding style cleanups
+	- forward port for latest network driver changes
+	- kill useless typecasts (e.g. in et1310_phy.c)
+	- alloc_etherdev is initializing memory with zero?!?
+	- add_timer call in et131x_netdev.c is correct?
+	- Add power saving functionality (suspend, sleep, resume)
+	- Implement a few more kernel Parameter (set mac )
+
+Please send patches to:
+	Greg Kroah-Hartman <gregkh@suse.de>
+
+And Cc: Olaf Hartmann <o.hartmann@telovital.com> as he has this device and can
+test any changes.
+

drivers/staging/go7007/Kconfig

+config VIDEO_GO7007
+	tristate "Go 7007 support"
+	depends on VIDEO_DEV && PCI && I2C && INPUT
+	select VIDEOBUF_DMA_SG
+	select VIDEO_IR
+	select VIDEO_TUNER
+	select VIDEO_TVEEPROM
+	select CRC32
+	default N
+	---help---
+	  This is a video4linux driver for some wierd device...
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called go7007
+
+config VIDEO_GO7007_USB
+	tristate "Go 7007 USB support"
+	depends on VIDEO_GO7007 && USB
+	default N
+	---help---
+	  This is a video4linux driver for some wierd device...
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called go7007-usb
+

drivers/staging/me4000/Makefile

+obj-$(CONFIG_ME4000)		+= me4000.o

drivers/staging/slicoss/Makefile

+obj-$(CONFIG_SLICOSS) += slicoss.o

drivers/staging/sxg/Makefile

+obj-$(CONFIG_SXG)	+= sxg.o