/*
* 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 IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
#define TSF_TO_TU(_h, _l) \
((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
extern struct ieee80211_ops ath9k_htc_ops;
extern int htc_modparam_nohwcrypt;
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
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; \
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; \
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];
};
#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 {
int last_rssi; /* FIXME: per-STA */
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;
}
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
#define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
#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_htc_rx_status *rxs);
struct ath_tx_stats {
u32 buf_queued;
u32 buf_completed;
u32 skb_queued;
u32 skb_success;
u32 skb_failed;
u32 cab_queued;
u32 queue_stats[IEEE80211_NUM_ACS];
};
struct ath_rx_stats {
u32 skb_allocated;
u32 skb_completed;
u32 skb_dropped;
u32 err_crc;
u32 err_decrypt_crc;
u32 err_mic;
u32 err_pre_delim;
u32 err_post_delim;
u32 err_decrypt_busy;
u32 err_phy;
u32 err_phy_stats[ATH9K_PHYERR_MAX];
};
struct ath9k_debug {
struct dentry *debugfs_phy;
struct ath_tx_stats tx_stats;
struct ath_rx_stats rx_stats;
};
#else
#define TX_STAT_INC(c) do { } while (0)
#define RX_STAT_INC(c) 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_htc_rx_status *rxs)
{
}
#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_config {
struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
u16 beacon_interval;
u16 dtim_period;
u16 bmiss_timeout;
u32 bmiss_cnt;
};
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)
{
}
static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
{
}
static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
{
}
#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
#define OP_INVALID BIT(0)
#define OP_SCANNING BIT(1)
#define OP_ENABLE_BEACON BIT(2)
#define OP_BT_PRIORITY_DETECTED BIT(3)
#define OP_BT_SCAN BIT(4)
#define OP_ANI_RUNNING BIT(5)
#define OP_TSF_RESET BIT(6)
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_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;
struct ath9k_hw_cal_data caldata;
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
spinlock_t beacon_lock;
struct htc_beacon_config cur_beacon_conf;
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 beaconq;
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;
};
static inline void ath_read_cachesize(struct ath_common *common, int *csz)
{
common->bus_ops->read_cachesize(common, csz);
}
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);
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);
#ifdef CONFIG_MAC80211_LEDS
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_init_leds(struct ath9k_htc_priv *priv)
{
}
static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
{
}
static inline void ath9k_led_work(struct work_struct *work)
{
}
#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);
#else
static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
#endif /* HTC_H */