1 files changed, 464 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
new file mode 100644
index 000000000000..ad556aa8da39
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -0,0 +1,464 @@
+/*
+ * Copyright (c) 2010 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/leds.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_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_AUTO           = 0,
+        HTC_MODE_11A            = 1,
+        HTC_MODE_11B            = 2,
+        HTC_MODE_11G            = 3,
+        HTC_MODE_FH             = 4,
+        HTC_MODE_TURBO_A        = 5,
+        HTC_MODE_TURBO_G        = 6,
+        HTC_MODE_11NA           = 7,
+        HTC_MODE_11NG           = 8
+};
+
+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_HDRSPACE sizeof(struct htc_frame_hdr)
+#define ATH9K_HTC_AMPDU 1
+#define ATH9K_HTC_NORMAL 2
+
+#define ATH9K_HTC_TX_CTSONLY      0x1
+#define ATH9K_HTC_TX_RTSCTS       0x2
+#define ATH9K_HTC_TX_USE_MIN_RATE 0x100
+
+struct tx_frame_hdr {
+        u8 data_type;
+        u8 node_idx;
+        u8 vif_idx;
+        u8 tidno;
+        u32 flags; /* ATH9K_HTC_TX_* */
+        u8 key_type;
+        u8 keyix;
+        u8 reserved[26];
+} __packed;
+
+struct tx_mgmt_hdr {
+        u8 node_idx;
+        u8 vif_idx;
+        u8 tidno;
+        u8 flags;
+        u8 key_type;
+        u8 keyix;
+        u16 reserved;
+} __packed;
+
+struct tx_beacon_header {
+        u8 len_changed;
+        u8 vif_index;
+        u16 rev;
+} __packed;
+
+struct ath9k_htc_target_hw {
+        u32 flags;
+        u32 flags_ext;
+        u32 ampdu_limit;
+        u8 ampdu_subframes;
+        u8 tx_chainmask;
+        u8 tx_chainmask_legacy;
+        u8 rtscts_ratecode;
+        u8 protmode;
+} __packed;
+
+struct ath9k_htc_cap_target {
+        u32 flags;
+        u32 flags_ext;
+        u32 ampdu_limit;
+        u8 ampdu_subframes;
+        u8 tx_chainmask;
+        u8 tx_chainmask_legacy;
+        u8 rtscts_ratecode;
+        u8 protmode;
+} __packed;
+
+struct ath9k_htc_target_vif {
+        u8 index;
+        u8 des_bssid[ETH_ALEN];
+        __be32 opmode;
+        u8 myaddr[ETH_ALEN];
+        u8 bssid[ETH_ALEN];
+        u32 flags;
+        u32 flags_ext;
+        u16 ps_sta;
+        __be16 rtsthreshold;
+        u8 ath_cap;
+        u8 node;
+        s8 mcast_rate;
+} __packed;
+
+#define ATH_HTC_STA_AUTH  0x0001
+#define ATH_HTC_STA_QOS   0x0002
+#define ATH_HTC_STA_ERP   0x0004
+#define ATH_HTC_STA_HT    0x0008
+
+/* FIXME: UAPSD variables */
+struct ath9k_htc_target_sta {
+        u16 associd;
+        u16 txpower;
+        u32 ucastkey;
+        u8 macaddr[ETH_ALEN];
+        u8 bssid[ETH_ALEN];
+        u8 sta_index;
+        u8 vif_index;
+        u8 vif_sta;
+        __be16 flags; /* ATH_HTC_STA_* */
+        u16 htcap;
+        u8 valid;
+        u16 capinfo;
+        struct ath9k_htc_target_hw *hw;
+        struct ath9k_htc_target_vif *vif;
+        u16 txseqmgmt;
+        u8 is_vif_sta;
+        u16 maxampdu;
+        u16 iv16;
+        u32 iv32;
+} __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_stats {
+        __be32 tx_shortretry;
+        __be32 tx_longretry;
+        __be32 tx_xretries;
+        __be32 ht_txunaggr_xretry;
+        __be32 ht_tx_xretries;
+} __packed;
+
+struct ath9k_htc_vif {
+        u8 index;
+};
+
+#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 ath9k_htc_aggr_work {
+        u16 tid;
+        u8 sta_addr[ETH_ALEN];
+        struct ieee80211_hw *hw;
+        struct ieee80211_vif *vif;
+        enum ieee80211_ampdu_mlme_action action;
+        struct mutex mutex;
+};
+
+#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;
+};
+
+struct ath9k_htc_tx_ctl {
+        u8 type; /* ATH9K_HTC_* */
+};
+
+#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++)
+
+struct ath_tx_stats {
+        u32 buf_queued;
+        u32 buf_completed;
+        u32 skb_queued;
+        u32 skb_completed;
+        u32 skb_dropped;
+};
+
+struct ath_rx_stats {
+        u32 skb_allocated;
+        u32 skb_completed;
+        u32 skb_dropped;
+};
+
+struct ath9k_debug {
+        struct dentry *debugfs_phy;
+        struct dentry *debugfs_tgt_stats;
+        struct dentry *debugfs_xmit;
+        struct dentry *debugfs_recv;
+        struct ath_tx_stats tx_stats;
+        struct ath_rx_stats rx_stats;
+        u32 txrate;
+};
+
+#else
+
+#define TX_STAT_INC(c) do { } while (0)
+#define RX_STAT_INC(c) do { } while (0)
+
+#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
+
+#define ATH_LED_PIN_DEF             1
+#define ATH_LED_PIN_9287            8
+#define ATH_LED_PIN_9271            15
+#define ATH_LED_ON_DURATION_IDLE    350 /* in msecs */
+#define ATH_LED_OFF_DURATION_IDLE   250 /* in msecs */
+
+enum ath_led_type {
+        ATH_LED_RADIO,
+        ATH_LED_ASSOC,
+        ATH_LED_TX,
+        ATH_LED_RX
+};
+
+struct ath_led {
+        struct ath9k_htc_priv *priv;
+        struct led_classdev led_cdev;
+        enum ath_led_type led_type;
+        struct delayed_work brightness_work;
+        char name[32];
+        bool registered;
+        int brightness;
+};
+
+struct htc_beacon_config {
+        u16 beacon_interval;
+        u16 listen_interval;
+        u16 dtim_period;
+        u16 bmiss_timeout;
+        u8 dtim_count;
+};
+
+#define OP_INVALID        BIT(0)
+#define OP_SCANNING       BIT(1)
+#define OP_FULL_RESET     BIT(2)
+#define OP_LED_ASSOCIATED BIT(3)
+#define OP_LED_ON         BIT(4)
+#define OP_PREAMBLE_SHORT BIT(5)
+#define OP_PROTECT_ENABLE BIT(6)
+#define OP_TXAGGR         BIT(7)
+#define OP_ASSOCIATED     BIT(8)
+#define OP_ENABLE_BEACON  BIT(9)
+#define OP_LED_DEINIT     BIT(10)
+#define OP_UNPLUGGED      BIT(11)
+
+struct ath9k_htc_priv {
+        struct device *dev;
+        struct ieee80211_hw *hw;
+        struct ath_hw *ah;
+        struct htc_target *htc;
+        struct wmi *wmi;
+
+        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;
+
+        u16 op_flags;
+        u16 curtxpow;
+        u16 txpowlimit;
+        u16 nvifs;
+        u16 nstations;
+        u16 seq_no;
+        u32 bmiss_cnt;
+
+        spinlock_t beacon_lock;
+
+        bool tx_queues_stop;
+        spinlock_t tx_lock;
+
+        struct ieee80211_vif *vif;
+        struct htc_beacon_config cur_beacon_conf;
+        unsigned int rxfilter;
+        struct tasklet_struct wmi_tasklet;
+        struct tasklet_struct rx_tasklet;
+        struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
+        struct ath9k_htc_rx rx;
+        struct tasklet_struct tx_tasklet;
+        struct sk_buff_head tx_queue;
+        struct ath9k_htc_aggr_work aggr_work;
+        struct delayed_work ath9k_aggr_work;
+        struct delayed_work ath9k_ani_work;
+        struct work_struct ps_work;
+
+        struct mutex htc_pm_lock;
+        unsigned long ps_usecount;
+        bool ps_enabled;
+        bool ps_idle;
+
+        struct ath_led radio_led;
+        struct ath_led assoc_led;
+        struct ath_led tx_led;
+        struct ath_led rx_led;
+        struct delayed_work ath9k_led_blink_work;
+        int led_on_duration;
+        int led_off_duration;
+        int led_on_cnt;
+        int led_off_cnt;
+        int hwq_map[ATH9K_WME_AC_VO+1];
+
+#ifdef CONFIG_ATH9K_HTC_DEBUGFS
+        struct ath9k_debug debug;
+#endif
+        struct ath9k_htc_target_rate tgt_rate;
+
+        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_beacon_config(struct ath9k_htc_priv *priv,
+                             struct ieee80211_vif *vif);
+void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);
+
+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);
+
+void ath9k_htc_station_work(struct work_struct *work);
+void ath9k_htc_aggr_work(struct work_struct *work);
+void ath9k_ani_work(struct work_struct *work);;
+
+int ath9k_tx_init(struct ath9k_htc_priv *priv);
+void ath9k_tx_tasklet(unsigned long data);
+int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb);
+void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
+bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv,
+                         enum ath9k_tx_queue_subtype qtype);
+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);
+
+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);
+
+void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
+void ath9k_init_leds(struct ath9k_htc_priv *priv);
+void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
+
+int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
+                           u16 devid);
+void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
+#ifdef CONFIG_PM
+int ath9k_htc_resume(struct htc_target *htc_handle);
+#endif
+#ifdef CONFIG_ATH9K_HTC_DEBUGFS
+int ath9k_htc_debug_create_root(void);
+void ath9k_htc_debug_remove_root(void);
+int ath9k_htc_init_debug(struct ath_hw *ah);
+void ath9k_htc_exit_debug(struct ath_hw *ah);
+#else
+static inline int ath9k_htc_debug_create_root(void) { return 0; };
+static inline void ath9k_htc_debug_remove_root(void) {};
+static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
+static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
+#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
+
+#endif /* HTC_H */