Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 328 insertions, 0 deletions

diff --git a/kernel/drivers/net/wireless/ath/ath.h b/kernel/drivers/net/wireless/ath/ath.h
new file mode 100644
index 000000000..7e9481099
--- /dev/null
+++ b/kernel/drivers/net/wireless/ath/ath.h
@@ -0,0 +1,328 @@
+/*
+ * Copyright (c) 2008-2009 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef ATH_H
+#define ATH_H
+
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>
+#include <linux/spinlock.h>
+#include <net/mac80211.h>
+
+/*
+ * The key cache is used for h/w cipher state and also for
+ * tracking station state such as the current tx antenna.
+ * We also setup a mapping table between key cache slot indices
+ * and station state to short-circuit node lookups on rx.
+ * Different parts have different size key caches.  We handle
+ * up to ATH_KEYMAX entries (could dynamically allocate state).
+ */
+#define	ATH_KEYMAX	        128     /* max key cache size we handle */
+
+static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+struct ath_ani {
+	bool caldone;
+	unsigned int longcal_timer;
+	unsigned int shortcal_timer;
+	unsigned int resetcal_timer;
+	unsigned int checkani_timer;
+	struct timer_list timer;
+};
+
+struct ath_cycle_counters {
+	u32 cycles;
+	u32 rx_busy;
+	u32 rx_frame;
+	u32 tx_frame;
+};
+
+enum ath_device_state {
+	ATH_HW_UNAVAILABLE,
+	ATH_HW_INITIALIZED,
+};
+
+enum ath_op_flags {
+	ATH_OP_INVALID,
+	ATH_OP_BEACONS,
+	ATH_OP_ANI_RUN,
+	ATH_OP_PRIM_STA_VIF,
+	ATH_OP_HW_RESET,
+	ATH_OP_SCANNING,
+	ATH_OP_MULTI_CHANNEL,
+	ATH_OP_WOW_ENABLED,
+};
+
+enum ath_bus_type {
+	ATH_PCI,
+	ATH_AHB,
+	ATH_USB,
+};
+
+struct reg_dmn_pair_mapping {
+	u16 reg_domain;
+	u16 reg_5ghz_ctl;
+	u16 reg_2ghz_ctl;
+};
+
+struct ath_regulatory {
+	char alpha2[2];
+	enum nl80211_dfs_regions region;
+	u16 country_code;
+	u16 max_power_level;
+	u16 current_rd;
+	int16_t power_limit;
+	struct reg_dmn_pair_mapping *regpair;
+};
+
+enum ath_crypt_caps {
+	ATH_CRYPT_CAP_CIPHER_AESCCM		= BIT(0),
+	ATH_CRYPT_CAP_MIC_COMBINED		= BIT(1),
+};
+
+struct ath_keyval {
+	u8 kv_type;
+	u8 kv_pad;
+	u16 kv_len;
+	u8 kv_val[16]; /* TK */
+	u8 kv_mic[8]; /* Michael MIC key */
+	u8 kv_txmic[8]; /* Michael MIC TX key (used only if the hardware
+			 * supports both MIC keys in the same key cache entry;
+			 * in that case, kv_mic is the RX key) */
+};
+
+enum ath_cipher {
+	ATH_CIPHER_WEP = 0,
+	ATH_CIPHER_AES_OCB = 1,
+	ATH_CIPHER_AES_CCM = 2,
+	ATH_CIPHER_CKIP = 3,
+	ATH_CIPHER_TKIP = 4,
+	ATH_CIPHER_CLR = 5,
+	ATH_CIPHER_MIC = 127
+};
+
+/**
+ * struct ath_ops - Register read/write operations
+ *
+ * @read: Register read
+ * @multi_read: Multiple register read
+ * @write: Register write
+ * @enable_write_buffer: Enable multiple register writes
+ * @write_flush: flush buffered register writes and disable buffering
+ */
+struct ath_ops {
+	unsigned int (*read)(void *, u32 reg_offset);
+	void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
+	void (*write)(void *, u32 val, u32 reg_offset);
+	void (*enable_write_buffer)(void *);
+	void (*write_flush) (void *);
+	u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
+	void (*enable_rmw_buffer)(void *);
+	void (*rmw_flush) (void *);
+
+};
+
+struct ath_common;
+struct ath_bus_ops;
+
+struct ath_ps_ops {
+	void (*wakeup)(struct ath_common *common);
+	void (*restore)(struct ath_common *common);
+};
+
+struct ath_common {
+	void *ah;
+	void *priv;
+	struct ieee80211_hw *hw;
+	int debug_mask;
+	enum ath_device_state state;
+	unsigned long op_flags;
+
+	struct ath_ani ani;
+
+	u16 cachelsz;
+	u16 curaid;
+	u8 macaddr[ETH_ALEN];
+	u8 curbssid[ETH_ALEN] __aligned(2);
+	u8 bssidmask[ETH_ALEN];
+
+	u32 rx_bufsize;
+
+	u32 keymax;
+	DECLARE_BITMAP(keymap, ATH_KEYMAX);
+	DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
+	DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
+	enum ath_crypt_caps crypt_caps;
+
+	unsigned int clockrate;
+
+	spinlock_t cc_lock;
+	struct ath_cycle_counters cc_ani;
+	struct ath_cycle_counters cc_survey;
+
+	struct ath_regulatory regulatory;
+	struct ath_regulatory reg_world_copy;
+	const struct ath_ops *ops;
+	const struct ath_bus_ops *bus_ops;
+	const struct ath_ps_ops *ps_ops;
+
+	bool btcoex_enabled;
+	bool disable_ani;
+	bool bt_ant_diversity;
+
+	int last_rssi;
+	struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
+};
+
+static inline const struct ath_ps_ops *ath_ps_ops(struct ath_common *common)
+{
+	return common->ps_ops;
+}
+
+struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
+				u32 len,
+				gfp_t gfp_mask);
+bool ath_is_mybeacon(struct ath_common *common, struct ieee80211_hdr *hdr);
+
+void ath_hw_setbssidmask(struct ath_common *common);
+void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key);
+int ath_key_config(struct ath_common *common,
+			  struct ieee80211_vif *vif,
+			  struct ieee80211_sta *sta,
+			  struct ieee80211_key_conf *key);
+bool ath_hw_keyreset(struct ath_common *common, u16 entry);
+void ath_hw_cycle_counters_update(struct ath_common *common);
+int32_t ath_hw_get_listen_time(struct ath_common *common);
+
+__printf(3, 4)
+void ath_printk(const char *level, const struct ath_common *common,
+		const char *fmt, ...);
+
+#define ath_emerg(common, fmt, ...)				\
+	ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
+#define ath_alert(common, fmt, ...)				\
+	ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
+#define ath_crit(common, fmt, ...)				\
+	ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
+#define ath_err(common, fmt, ...)				\
+	ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
+#define ath_warn(common, fmt, ...)				\
+	ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
+#define ath_notice(common, fmt, ...)				\
+	ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
+#define ath_info(common, fmt, ...)				\
+	ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
+
+/**
+ * enum ath_debug_level - atheros wireless debug level
+ *
+ * @ATH_DBG_RESET: reset processing
+ * @ATH_DBG_QUEUE: hardware queue management
+ * @ATH_DBG_EEPROM: eeprom processing
+ * @ATH_DBG_CALIBRATE: periodic calibration
+ * @ATH_DBG_INTERRUPT: interrupt processing
+ * @ATH_DBG_REGULATORY: regulatory processing
+ * @ATH_DBG_ANI: adaptive noise immunitive processing
+ * @ATH_DBG_XMIT: basic xmit operation
+ * @ATH_DBG_BEACON: beacon handling
+ * @ATH_DBG_CONFIG: configuration of the hardware
+ * @ATH_DBG_FATAL: fatal errors, this is the default, DBG_DEFAULT
+ * @ATH_DBG_PS: power save processing
+ * @ATH_DBG_HWTIMER: hardware timer handling
+ * @ATH_DBG_BTCOEX: bluetooth coexistance
+ * @ATH_DBG_BSTUCK: stuck beacons
+ * @ATH_DBG_MCI: Message Coexistence Interface, a private protocol
+ *	used exclusively for WLAN-BT coexistence starting from
+ *	AR9462.
+ * @ATH_DBG_DFS: radar datection
+ * @ATH_DBG_WOW: Wake on Wireless
+ * @ATH_DBG_DYNACK: dynack handling
+ * @ATH_DBG_ANY: enable all debugging
+ *
+ * The debug level is used to control the amount and type of debugging output
+ * we want to see. Each driver has its own method for enabling debugging and
+ * modifying debug level states -- but this is typically done through a
+ * module parameter 'debug' along with a respective 'debug' debugfs file
+ * entry.
+ */
+enum ATH_DEBUG {
+	ATH_DBG_RESET		= 0x00000001,
+	ATH_DBG_QUEUE		= 0x00000002,
+	ATH_DBG_EEPROM		= 0x00000004,
+	ATH_DBG_CALIBRATE	= 0x00000008,
+	ATH_DBG_INTERRUPT	= 0x00000010,
+	ATH_DBG_REGULATORY	= 0x00000020,
+	ATH_DBG_ANI		= 0x00000040,
+	ATH_DBG_XMIT		= 0x00000080,
+	ATH_DBG_BEACON		= 0x00000100,
+	ATH_DBG_CONFIG		= 0x00000200,
+	ATH_DBG_FATAL		= 0x00000400,
+	ATH_DBG_PS		= 0x00000800,
+	ATH_DBG_BTCOEX		= 0x00001000,
+	ATH_DBG_WMI		= 0x00002000,
+	ATH_DBG_BSTUCK		= 0x00004000,
+	ATH_DBG_MCI		= 0x00008000,
+	ATH_DBG_DFS		= 0x00010000,
+	ATH_DBG_WOW		= 0x00020000,
+	ATH_DBG_CHAN_CTX	= 0x00040000,
+	ATH_DBG_DYNACK		= 0x00080000,
+	ATH_DBG_ANY		= 0xffffffff
+};
+
+#define ATH_DBG_DEFAULT (ATH_DBG_FATAL)
+#define ATH_DBG_MAX_LEN 512
+
+#ifdef CONFIG_ATH_DEBUG
+
+#define ath_dbg(common, dbg_mask, fmt, ...)				\
+do {									\
+	if ((common)->debug_mask & ATH_DBG_##dbg_mask)			\
+		ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__);	\
+} while (0)
+
+#define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
+#define ATH_DBG_WARN_ON_ONCE(foo) WARN_ON_ONCE(foo)
+
+#else
+
+static inline  __attribute__ ((format (printf, 3, 4)))
+void _ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
+	     const char *fmt, ...)
+{
+}
+#define ath_dbg(common, dbg_mask, fmt, ...)				\
+	_ath_dbg(common, ATH_DBG_##dbg_mask, fmt, ##__VA_ARGS__)
+
+#define ATH_DBG_WARN(foo, arg...) do {} while (0)
+#define ATH_DBG_WARN_ON_ONCE(foo) ({				\
+	int __ret_warn_once = !!(foo);				\
+	unlikely(__ret_warn_once);				\
+})
+
+#endif /* CONFIG_ATH_DEBUG */
+
+/** Returns string describing opmode, or NULL if unknown mode. */
+#ifdef CONFIG_ATH_DEBUG
+const char *ath_opmode_to_string(enum nl80211_iftype opmode);
+#else
+static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
+{
+	return "UNKNOWN";
+}
+#endif
+
+#endif /* ATH_H */