Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

1 files changed, 500 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
new file mode 100644
index 000000000000..4e339ccfa800
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -0,0 +1,500 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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 Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#ifndef __IWL_MVM_H__
+#define __IWL_MVM_H__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/leds.h>
+#include <linux/in6.h>
+
+#include "iwl-op-mode.h"
+#include "iwl-trans.h"
+#include "iwl-notif-wait.h"
+#include "iwl-eeprom-parse.h"
+#include "iwl-test.h"
+#include "iwl-trans.h"
+#include "sta.h"
+#include "fw-api.h"
+
+#define IWL_INVALID_MAC80211_QUEUE	0xff
+#define IWL_MVM_MAX_ADDRESSES		2
+#define IWL_RSSI_OFFSET 44
+
+enum iwl_mvm_tx_fifo {
+	IWL_MVM_TX_FIFO_BK = 0,
+	IWL_MVM_TX_FIFO_BE,
+	IWL_MVM_TX_FIFO_VI,
+	IWL_MVM_TX_FIFO_VO,
+};
+
+/* Placeholder */
+#define IWL_OFFCHANNEL_QUEUE 8
+#define IWL_FIRST_AMPDU_QUEUE 11
+
+extern struct ieee80211_ops iwl_mvm_hw_ops;
+/**
+ * struct iwl_mvm_mod_params - module parameters for iwlmvm
+ * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
+ *	We will register to mac80211 to have testmode working. The NIC must not
+ *	be up'ed after the INIT fw asserted. This is useful to be able to use
+ *	proprietary tools over testmode to debug the INIT fw.
+ * @power_scheme: CAM(Continuous Active Mode)-1, BPS(Balanced Power
+ *	Save)-2(default), LP(Low Power)-3
+ */
+struct iwl_mvm_mod_params {
+	bool init_dbg;
+	int power_scheme;
+};
+extern struct iwl_mvm_mod_params iwlmvm_mod_params;
+
+struct iwl_mvm_phy_ctxt {
+	u16 id;
+	u16 color;
+
+	/*
+	 * TODO: This should probably be removed. Currently here only for rate
+	 * scaling algorithm
+	 */
+	struct ieee80211_channel *channel;
+};
+
+struct iwl_mvm_time_event_data {
+	struct ieee80211_vif *vif;
+	struct list_head list;
+	unsigned long end_jiffies;
+	u32 duration;
+	bool running;
+	u32 uid;
+
+	/*
+	 * The access to the 'id' field must be done when the
+	 * mvm->time_event_lock is held, as it value is used to indicate
+	 * if the te is in the time event list or not (when id == TE_MAX)
+	 */
+	u32 id;
+};
+
+ /* Power management */
+
+/**
+ * enum iwl_power_scheme
+ * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
+ * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
+ * @IWL_POWER_LEVEL_LP  - Low Power
+ */
+enum iwl_power_scheme {
+	IWL_POWER_SCHEME_CAM = 1,
+	IWL_POWER_SCHEME_BPS,
+	IWL_POWER_SCHEME_LP
+};
+
+#define IWL_CONN_MAX_LISTEN_INTERVAL	70
+
+/**
+ * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
+ * @id: between 0 and 3
+ * @color: to solve races upon MAC addition and removal
+ * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
+ * @uploaded: indicates the MAC context has been added to the device
+ * @ap_active: indicates that ap context is configured, and that the interface
+ *  should get quota etc.
+ * @queue_params: QoS params for this MAC
+ * @bcast_sta: station used for broadcast packets. Used by the following
+ *  vifs: P2P_DEVICE, GO and AP.
+ * @beacon_skb: the skb used to hold the AP/GO beacon template
+ */
+struct iwl_mvm_vif {
+	u16 id;
+	u16 color;
+	u8 ap_sta_id;
+
+	bool uploaded;
+	bool ap_active;
+
+	enum iwl_tsf_id tsf_id;
+
+	/*
+	 * QoS data from mac80211, need to store this here
+	 * as mac80211 has a separate callback but we need
+	 * to have the data for the MAC context
+	 */
+	struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
+	struct iwl_mvm_time_event_data time_event_data;
+
+	struct iwl_mvm_int_sta bcast_sta;
+
+	/*
+	 * Assigned while mac80211 has the interface in a channel context,
+	 * or, for P2P Device, while it exists.
+	 */
+	struct iwl_mvm_phy_ctxt *phy_ctxt;
+
+#ifdef CONFIG_PM_SLEEP
+	/* WoWLAN GTK rekey data */
+	struct {
+		u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
+		__le64 replay_ctr;
+		bool valid;
+	} rekey_data;
+
+	int tx_key_idx;
+
+#if IS_ENABLED(CONFIG_IPV6)
+	/* IPv6 addresses for WoWLAN */
+	struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS];
+	int num_target_ipv6_addrs;
+#endif
+#endif
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	struct dentry *dbgfs_dir;
+	void *dbgfs_data;
+#endif
+};
+
+static inline struct iwl_mvm_vif *
+iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
+{
+	return (void *)vif->drv_priv;
+}
+
+enum iwl_mvm_status {
+	IWL_MVM_STATUS_HW_RFKILL,
+	IWL_MVM_STATUS_ROC_RUNNING,
+	IWL_MVM_STATUS_IN_HW_RESTART,
+};
+
+enum iwl_scan_status {
+	IWL_MVM_SCAN_NONE,
+	IWL_MVM_SCAN_OS,
+};
+
+/**
+ * struct iwl_nvm_section - describes an NVM section in memory.
+ *
+ * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
+ * and saved for later use by the driver. Not all NVM sections are saved
+ * this way, only the needed ones.
+ */
+struct iwl_nvm_section {
+	u16 length;
+	const u8 *data;
+};
+
+struct iwl_mvm {
+	/* for logger access */
+	struct device *dev;
+
+	struct iwl_trans *trans;
+	const struct iwl_fw *fw;
+	const struct iwl_cfg *cfg;
+	struct iwl_phy_db *phy_db;
+	struct ieee80211_hw *hw;
+
+	/* for protecting access to iwl_mvm */
+	struct mutex mutex;
+	struct list_head async_handlers_list;
+	spinlock_t async_handlers_lock;
+	struct work_struct async_handlers_wk;
+
+	struct work_struct roc_done_wk;
+
+	unsigned long status;
+
+	enum iwl_ucode_type cur_ucode;
+	bool ucode_loaded;
+	bool init_ucode_run;
+	u32 error_event_table;
+	u32 log_event_table;
+
+	u32 ampdu_ref;
+
+	struct iwl_notif_wait_data notif_wait;
+
+	unsigned long transport_queue_stop;
+	u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
+	atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
+
+	struct iwl_nvm_data *nvm_data;
+	/* eeprom blob for debugfs/testmode */
+	u8 *eeprom_blob;
+	size_t eeprom_blob_size;
+	/* NVM sections for 7000 family */
+	struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS];
+
+	/* EEPROM MAC addresses */
+	struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];
+
+	/* data related to data path */
+	struct iwl_rx_phy_info last_phy_info;
+	struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
+	struct work_struct sta_drained_wk;
+	unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
+
+	/* configured by mac80211 */
+	u32 rts_threshold;
+
+	/* Scan status, cmd (pre-allocated) and auxiliary station */
+	enum iwl_scan_status scan_status;
+	struct iwl_scan_cmd *scan_cmd;
+
+	/* Internal station */
+	struct iwl_mvm_int_sta aux_sta;
+
+	u8 scan_last_antenna_idx; /* to toggle TX between antennas */
+	u8 mgmt_last_antenna_idx;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	struct dentry *debugfs_dir;
+	u32 dbgfs_sram_offset, dbgfs_sram_len;
+	bool prevent_power_down_d3;
+#endif
+
+	struct iwl_mvm_phy_ctxt phy_ctxt_roc;
+
+	struct list_head time_event_list;
+	spinlock_t time_event_lock;
+
+	/*
+	 * A bitmap indicating the index of the key in use. The firmware
+	 * can hold 16 keys at most. Reflect this fact.
+	 */
+	unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
+	u8 vif_count;
+
+	struct led_classdev led;
+
+	struct ieee80211_vif *p2p_device_vif;
+};
+
+/* Extract MVM priv from op_mode and _hw */
+#define IWL_OP_MODE_GET_MVM(_iwl_op_mode)		\
+	((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)
+
+#define IWL_MAC80211_GET_MVM(_hw)			\
+	IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
+
+extern const u8 iwl_mvm_ac_to_tx_fifo[];
+
+struct iwl_rate_info {
+	u8 plcp;	/* uCode API:  IWL_RATE_6M_PLCP, etc. */
+	u8 plcp_siso;	/* uCode API:  IWL_RATE_SISO_6M_PLCP, etc. */
+	u8 plcp_mimo2;	/* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
+	u8 plcp_mimo3;  /* uCode API:  IWL_RATE_MIMO3_6M_PLCP, etc. */
+	u8 ieee;	/* MAC header:  IWL_RATE_6M_IEEE, etc. */
+};
+
+/******************
+ * MVM Methods
+ ******************/
+/* uCode */
+int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
+
+/* Utils */
+int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
+					enum ieee80211_band band);
+u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
+void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
+u8 first_antenna(u8 mask);
+u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
+
+/* Tx / Host Commands */
+int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
+				  struct iwl_host_cmd *cmd);
+int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
+				      u32 flags, u16 len, const void *data);
+int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
+					 struct iwl_host_cmd *cmd,
+					 u32 *status);
+int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id,
+					     u16 len, const void *data,
+					     u32 *status);
+int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
+		   struct ieee80211_sta *sta);
+int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
+#ifdef CONFIG_IWLWIFI_DEBUG
+const char *iwl_mvm_get_tx_fail_reason(u32 status);
+#else
+static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
+#endif
+int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
+void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
+
+/* Statistics */
+int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm,
+				struct iwl_rx_cmd_buffer *rxb,
+				struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
+			  struct iwl_rx_cmd_buffer *rxb,
+			  struct iwl_device_cmd *cmd);
+
+/* NVM */
+int iwl_nvm_init(struct iwl_mvm *mvm);
+
+int iwl_mvm_up(struct iwl_mvm *mvm);
+int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
+
+int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
+
+/*
+ * FW notifications / CMD responses handlers
+ * Convention: iwl_mvm_rx_<NAME OF THE CMD>
+ */
+int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			  struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+		       struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+		      struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			 struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			  struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
+				struct iwl_rx_cmd_buffer *rxb,
+				struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			 struct iwl_device_cmd *cmd);
+
+/* MVM PHY */
+int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
+			 struct cfg80211_chan_def *chandef,
+			 u8 chains_static, u8 chains_dynamic);
+int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
+			     struct cfg80211_chan_def *chandef,
+			     u8 chains_static, u8 chains_dynamic);
+void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
+			     struct iwl_mvm_phy_ctxt *ctxt);
+
+/* MAC (virtual interface) programming */
+int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
+				struct ieee80211_vif *vif);
+int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
+				    struct ieee80211_vif *vif);
+
+/* Bindings */
+int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+
+/* Quota management */
+int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif);
+
+/* Scanning */
+int iwl_mvm_scan_request(struct iwl_mvm *mvm,
+			 struct ieee80211_vif *vif,
+			 struct cfg80211_scan_request *req);
+int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			     struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			     struct iwl_device_cmd *cmd);
+void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);
+
+/* MVM debugfs */
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
+int iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
+			       struct dentry *dbgfs_dir);
+void iwl_power_get_params(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
+			  struct iwl_powertable_cmd *cmd);
+#else
+static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
+					 struct dentry *dbgfs_dir)
+{
+	return 0;
+}
+#endif /* CONFIG_IWLWIFI_DEBUGFS */
+
+/* rate scaling */
+int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
+			u8 flags, bool init);
+
+/* power managment */
+int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+
+int iwl_mvm_leds_init(struct iwl_mvm *mvm);
+void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
+
+/* D3 (WoWLAN, NetDetect) */
+int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
+int iwl_mvm_resume(struct ieee80211_hw *hw);
+void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
+void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    struct cfg80211_gtk_rekey_data *data);
+void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      struct inet6_dev *idev);
+void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif, int idx);
+
+#endif /* __IWL_MVM_H__ */