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Release 4.11 drivers/net/wireless/ath/ath9k/htc.h

/*
 * Copyright (c) 2010-2011 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 HTC_H

#define HTC_H

#include <linux/module.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/leds.h>
#include <linux/slab.h>
#include <net/mac80211.h>

#include "common.h"
#include "htc_hst.h"
#include "hif_usb.h"
#include "wmi.h"


#define ATH_STA_SHORT_CALINTERVAL 1000    
/* 1 second */

#define ATH_AP_SHORT_CALINTERVAL  100     
/* 100 ms */

#define ATH_ANI_POLLINTERVAL      100     
/* 100 ms */

#define ATH_LONG_CALINTERVAL      30000   
/* 30 seconds */

#define ATH_RESTART_CALINTERVAL   1200000 
/* 20 minutes */


#define ATH_DEFAULT_BMISS_LIMIT 10

#define TSF_TO_TU(_h, _l) \
	((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))

extern struct ieee80211_ops ath9k_htc_ops;
extern int htc_modparam_nohwcrypt;
#ifdef CONFIG_MAC80211_LEDS
extern int ath9k_htc_led_blink;
#endif


enum htc_phymode {
	
HTC_MODE_11NA		= 0,
	
HTC_MODE_11NG		= 1
};


enum htc_opmode {
	
HTC_M_STA	= 1,
	
HTC_M_IBSS	= 0,
	
HTC_M_AHDEMO	= 3,
	
HTC_M_HOSTAP	= 6,
	
HTC_M_MONITOR	= 8,
	
HTC_M_WDS	= 2
};


#define ATH9K_HTC_AMPDU  1

#define ATH9K_HTC_NORMAL 2

#define ATH9K_HTC_BEACON 3

#define ATH9K_HTC_MGMT   4


#define ATH9K_HTC_TX_CTSONLY      0x1

#define ATH9K_HTC_TX_RTSCTS       0x2


struct tx_frame_hdr {
	
u8 data_type;
	
u8 node_idx;
	
u8 vif_idx;
	
u8 tidno;
	
__be32 flags; /* ATH9K_HTC_TX_* */
	
u8 key_type;
	
u8 keyix;
	
u8 cookie;
	
u8 pad;
} 
__packed;


struct tx_mgmt_hdr {
	
u8 node_idx;
	
u8 vif_idx;
	
u8 tidno;
	
u8 flags;
	
u8 key_type;
	
u8 keyix;
	
u8 cookie;
	
u8 pad;
} 
__packed;


struct tx_beacon_header {
	
u8 vif_index;
	
u8 len_changed;
	
u16 rev;
} 
__packed;


#define MAX_TX_AMPDU_SUBFRAMES_9271 17

#define MAX_TX_AMPDU_SUBFRAMES_7010 22


struct ath9k_htc_cap_target {
	
__be32 ampdu_limit;
	
u8 ampdu_subframes;
	
u8 enable_coex;
	
u8 tx_chainmask;
	
u8 pad;
} 
__packed;


struct ath9k_htc_target_vif {
	
u8 index;
	
u8 opmode;
	
u8 myaddr[ETH_ALEN];
	
u8 ath_cap;
	
__be16 rtsthreshold;
	
u8 pad;
} 
__packed;


struct ath9k_htc_target_sta {
	
u8 macaddr[ETH_ALEN];
	
u8 bssid[ETH_ALEN];
	
u8 sta_index;
	
u8 vif_index;
	
u8 is_vif_sta;
	
__be16 flags;
	
__be16 htcap;
	
__be16 maxampdu;
	
u8 pad;
} 
__packed;


struct ath9k_htc_target_aggr {
	
u8 sta_index;
	
u8 tidno;
	
u8 aggr_enable;
	
u8 padding;
} 
__packed;


#define ATH_HTC_RATE_MAX 30


#define WLAN_RC_DS_FLAG  0x01

#define WLAN_RC_40_FLAG  0x02

#define WLAN_RC_SGI_FLAG 0x04

#define WLAN_RC_HT_FLAG  0x08

#define ATH_RC_TX_STBC_FLAG 0x20


struct ath9k_htc_rateset {
	
u8 rs_nrates;
	
u8 rs_rates[ATH_HTC_RATE_MAX];
};


struct ath9k_htc_rate {
	
struct ath9k_htc_rateset legacy_rates;
	
struct ath9k_htc_rateset ht_rates;
} 
__packed;


struct ath9k_htc_target_rate {
	
u8 sta_index;
	
u8 isnew;
	
__be32 capflags;
	
struct ath9k_htc_rate rates;
};


struct ath9k_htc_target_rate_mask {
	
u8 vif_index;
	
u8 band;
	
__be32 mask;
	
u16 pad;
} 
__packed;


struct ath9k_htc_target_int_stats {
	
__be32 rx;
	
__be32 rxorn;
	
__be32 rxeol;
	
__be32 txurn;
	
__be32 txto;
	
__be32 cst;
} 
__packed;


struct ath9k_htc_target_tx_stats {
	
__be32 xretries;
	
__be32 fifoerr;
	
__be32 filtered;
	
__be32 timer_exp;
	
__be32 shortretries;
	
__be32 longretries;
	
__be32 qnull;
	
__be32 encap_fail;
	
__be32 nobuf;
} 
__packed;


struct ath9k_htc_target_rx_stats {
	
__be32 nobuf;
	
__be32 host_send;
	
__be32 host_done;
} 
__packed;


#define ATH9K_HTC_MAX_VIF 2

#define ATH9K_HTC_MAX_BCN_VIF 2


#define INC_VIF(_priv, _type) do {            \
                switch (_type) {                \
                case NL80211_IFTYPE_STATION:    \
                        _priv->num_sta_vif++;   \
                        break;                  \
                case NL80211_IFTYPE_ADHOC:      \
                        _priv->num_ibss_vif++;  \
                        break;                  \
                case NL80211_IFTYPE_AP:         \
                        _priv->num_ap_vif++;    \
                        break;                  \
                case NL80211_IFTYPE_MESH_POINT: \
                        _priv->num_mbss_vif++;  \
                        break;                  \
                default:                        \
                        break;                  \
                }                               \
        } while (0)


#define DEC_VIF(_priv, _type) do {            \
                switch (_type) {                \
                case NL80211_IFTYPE_STATION:    \
                        _priv->num_sta_vif--;   \
                        break;                  \
                case NL80211_IFTYPE_ADHOC:      \
                        _priv->num_ibss_vif--;  \
                        break;                  \
                case NL80211_IFTYPE_AP:         \
                        _priv->num_ap_vif--;    \
                        break;                  \
                case NL80211_IFTYPE_MESH_POINT: \
                        _priv->num_mbss_vif--;  \
                        break;                  \
                default:                        \
                        break;                  \
                }                               \
        } while (0)


struct ath9k_htc_vif {
	
u8 index;
	
u16 seq_no;
	
bool beacon_configured;
	
int bslot;
	
__le64 tsfadjust;
};


struct ath9k_vif_iter_data {
	
const u8 *hw_macaddr;
	
u8 mask[ETH_ALEN];
};


#define ATH9K_HTC_MAX_STA 8

#define ATH9K_HTC_MAX_TID 8


enum tid_aggr_state {
	
AGGR_STOP = 0,
	
AGGR_PROGRESS,
	
AGGR_START,
	
AGGR_OPERATIONAL
};


struct ath9k_htc_sta {
	
u8 index;
	
enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
	
struct work_struct rc_update_work;
	
struct ath9k_htc_priv *htc_priv;
};


#define ATH9K_HTC_RXBUF 256

#define HTC_RX_FRAME_HEADER_SIZE 40


struct ath9k_htc_rxbuf {
	
bool in_process;
	
struct sk_buff *skb;
	
struct ath_htc_rx_status rxstatus;
	
struct list_head list;
};


struct ath9k_htc_rx {
	
struct list_head rxbuf;
	
spinlock_t rxbuflock;
};


#define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 
/* ms */

#define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 
/* ms */

#define ATH9K_HTC_TX_RESERVE 10

#define ATH9K_HTC_TX_TIMEOUT_COUNT 40

#define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)


#define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)

#define ATH9K_HTC_OP_TX_DRAIN       BIT(1)


struct ath9k_htc_tx {
	
u8 flags;
	
int queued_cnt;
	
struct sk_buff_head mgmt_ep_queue;
	
struct sk_buff_head cab_ep_queue;
	
struct sk_buff_head data_be_queue;
	
struct sk_buff_head data_bk_queue;
	
struct sk_buff_head data_vi_queue;
	
struct sk_buff_head data_vo_queue;
	
struct sk_buff_head tx_failed;
	DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
	
struct timer_list cleanup_timer;
	
spinlock_t tx_lock;
};


struct ath9k_htc_tx_ctl {
	
u8 type; /* ATH9K_HTC_* */
	
u8 epid;
	
u8 txok;
	
u8 sta_idx;
	
unsigned long timestamp;
};


static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb) { struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) > IEEE80211_TX_INFO_DRIVER_DATA_SIZE); return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data; }

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#ifdef CONFIG_ATH9K_HTC_DEBUGFS #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++) #define TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a) #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c++) #define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c += a) #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++ #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++) void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv, struct ath_rx_status *rs); struct ath_tx_stats { u32 buf_queued; u32 buf_completed; u32 skb_queued; u32 skb_success; u32 skb_success_bytes; u32 skb_failed; u32 cab_queued; u32 queue_stats[IEEE80211_NUM_ACS]; }; struct ath_skbrx_stats { u32 skb_allocated; u32 skb_completed; u32 skb_completed_bytes; u32 skb_dropped; }; struct ath9k_debug { struct dentry *debugfs_phy; struct ath_tx_stats tx_stats; struct ath_rx_stats rx_stats; struct ath_skbrx_stats skbrx_stats; }; void ath9k_htc_get_et_strings(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u32 sset, u8 *data); int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int sset); void ath9k_htc_get_et_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ethtool_stats *stats, u64 *data); #else #define TX_STAT_INC(c) do { } while (0) #define TX_STAT_ADD(c, a) do { } while (0) #define RX_STAT_INC(c) do { } while (0) #define RX_STAT_ADD(c, a) do { } while (0) #define CAB_STAT_INC do { } while (0) #define TX_QSTAT_INC(c) do { } while (0)
static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv, struct ath_rx_status *rs) { }

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#endif /* CONFIG_ATH9K_HTC_DEBUGFS */ #define ATH_LED_PIN_DEF 1 #define ATH_LED_PIN_9287 10 #define ATH_LED_PIN_9271 15 #define ATH_LED_PIN_7010 12 #define BSTUCK_THRESHOLD 10 /* * Adjust these when the max. no of beaconing interfaces is * increased. */ #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */ #define MIN_SWBA_RESPONSE 10 /* in TUs */ struct htc_beacon { enum { OK, /* no change needed */ UPDATE, /* update pending */ COMMIT /* beacon sent, commit change */ } updateslot; /* slot time update fsm */ struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF]; u32 bmisscnt; u32 beaconq; int slottime; int slotupdate; }; struct ath_btcoex { u32 bt_priority_cnt; unsigned long bt_priority_time; int bt_stomp_type; /* Types of BT stomping */ u32 btcoex_no_stomp; u32 btcoex_period; u32 btscan_no_stomp; }; #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product); void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv); void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv); #else
static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product) { }

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static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv) { }

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static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv) { }

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#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ #define OP_BT_PRIORITY_DETECTED 3 #define OP_BT_SCAN 4 #define OP_TSF_RESET 6 enum htc_op_flags { HTC_FWFLAG_NO_RMW, }; struct ath9k_htc_priv { struct device *dev; struct ieee80211_hw *hw; struct ath_hw *ah; struct htc_target *htc; struct wmi *wmi; u16 fw_version_major; u16 fw_version_minor; enum htc_endpoint_id wmi_cmd_ep; enum htc_endpoint_id beacon_ep; enum htc_endpoint_id cab_ep; enum htc_endpoint_id uapsd_ep; enum htc_endpoint_id mgmt_ep; enum htc_endpoint_id data_be_ep; enum htc_endpoint_id data_bk_ep; enum htc_endpoint_id data_vi_ep; enum htc_endpoint_id data_vo_ep; u8 vif_slot; u8 mon_vif_idx; u8 sta_slot; u8 vif_sta_pos[ATH9K_HTC_MAX_VIF]; u8 num_ibss_vif; u8 num_mbss_vif; u8 num_sta_vif; u8 num_sta_assoc_vif; u8 num_ap_vif; u16 curtxpow; u16 txpowlimit; u16 nvifs; u16 nstations; bool rearm_ani; bool reconfig_beacon; unsigned int rxfilter; unsigned long op_flags; unsigned long fw_flags; struct ath9k_hw_cal_data caldata; struct ath_spec_scan_priv spec_priv; spinlock_t beacon_lock; struct ath_beacon_config cur_beacon_conf; struct htc_beacon beacon; struct ath9k_htc_rx rx; struct ath9k_htc_tx tx; struct tasklet_struct swba_tasklet; struct tasklet_struct rx_tasklet; struct delayed_work ani_work; struct tasklet_struct tx_failed_tasklet; struct work_struct ps_work; struct work_struct fatal_work; struct mutex htc_pm_lock; unsigned long ps_usecount; bool ps_enabled; bool ps_idle; #ifdef CONFIG_MAC80211_LEDS enum led_brightness brightness; bool led_registered; char led_name[32]; struct led_classdev led_cdev; struct work_struct led_work; #endif int cabq; int hwq_map[IEEE80211_NUM_ACS]; #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT struct ath_btcoex btcoex; #endif struct delayed_work coex_period_work; struct delayed_work duty_cycle_work; #ifdef CONFIG_ATH9K_HTC_DEBUGFS struct ath9k_debug debug; #endif struct mutex mutex; struct ieee80211_vif *csa_vif; };
static inline void ath_read_cachesize(struct ath_common *common, int *csz) { common->bus_ops->read_cachesize(common, csz); }

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void ath9k_htc_reset(struct ath9k_htc_priv *priv); void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv, struct ieee80211_vif *vif); void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv, struct ieee80211_vif *vif); void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv, struct ieee80211_vif *vif); void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv); void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv, struct ieee80211_vif *vif); void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv); void ath9k_htc_swba(struct ath9k_htc_priv *priv, struct wmi_event_swba *swba); void ath9k_htc_rxep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id); void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id, bool txok); void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb, enum htc_endpoint_id ep_id, bool txok); int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv, u8 enable_coex); void ath9k_htc_ani_work(struct work_struct *work); void ath9k_htc_start_ani(struct ath9k_htc_priv *priv); void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv); int ath9k_tx_init(struct ath9k_htc_priv *priv); int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct ieee80211_sta *sta, struct sk_buff *skb, u8 slot, bool is_cab); void ath9k_tx_cleanup(struct ath9k_htc_priv *priv); bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype); int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv); int get_hw_qnum(u16 queue, int *hwq_map); int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum, struct ath9k_tx_queue_info *qinfo); void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv); void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv); int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv); void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot); void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv); void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event); void ath9k_tx_failed_tasklet(unsigned long data); void ath9k_htc_tx_cleanup_timer(unsigned long data); bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv); int ath9k_rx_init(struct ath9k_htc_priv *priv); void ath9k_rx_cleanup(struct ath9k_htc_priv *priv); void ath9k_host_rx_init(struct ath9k_htc_priv *priv); void ath9k_rx_tasklet(unsigned long data); u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv); void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv); void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv); void ath9k_ps_work(struct work_struct *work); bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, enum ath9k_power_mode mode); void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv); void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw); struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv); #ifdef CONFIG_MAC80211_LEDS void ath9k_configure_leds(struct ath9k_htc_priv *priv); void ath9k_init_leds(struct ath9k_htc_priv *priv); void ath9k_deinit_leds(struct ath9k_htc_priv *priv); void ath9k_led_work(struct work_struct *work); #else
static inline void ath9k_configure_leds(struct ath9k_htc_priv *priv) { }

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static inline void ath9k_init_leds(struct ath9k_htc_priv *priv) { }

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static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv) { }

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static inline void ath9k_led_work(struct work_struct *work) { }

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#endif int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, u16 devid, char *product, u32 drv_info); void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug); #ifdef CONFIG_PM void ath9k_htc_suspend(struct htc_target *htc_handle); int ath9k_htc_resume(struct htc_target *htc_handle); #endif #ifdef CONFIG_ATH9K_HTC_DEBUGFS int ath9k_htc_init_debug(struct ath_hw *ah); void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv); #else
static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; }

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;
static inline void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv) { }

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#endif /* CONFIG_ATH9K_HTC_DEBUGFS */ #endif /* HTC_H */

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