ath9k_htc: Support for AR9271 chipset.
Features:
* Station mode
* IBSS mode
* Monitor mode
* Legacy support
* HT support
* TX/RX 11n Aggregation
* HW encryption
* LED
* Suspend/Resume
For more information: http://wireless.kernel.org/en/users/Drivers/ath9k_htc
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
new file mode 100644
index 0000000..ab09fe34
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -0,0 +1,441 @@
+/*
+ * 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 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];
+ enum htc_opmode opmode;
+ u8 myaddr[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ u32 flags;
+ u32 flags_ext;
+ u16 ps_sta;
+ u16 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;
+ u16 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;
+ u32 capflags;
+ struct ath9k_htc_rate rates;
+};
+
+struct ath9k_htc_target_stats {
+ u32 tx_shortretry;
+ u32 tx_longretry;
+ u32 tx_xretries;
+ u32 ht_txunaggr_xretry;
+ u32 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;
+};
+
+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;
+};
+
+#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)
+
+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;
+
+ struct sk_buff *beacon;
+ spinlock_t beacon_lock;
+
+ struct ieee80211_vif *vif;
+ 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 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,
+ struct ieee80211_bss_conf *bss_conf);
+void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);
+void ath9k_htc_beacon_update(struct ath9k_htc_priv *priv,
+ struct ieee80211_vif *vif);
+
+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_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_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);
+
+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_debug_create_root(void);
+void ath9k_debug_remove_root(void);
+int ath9k_init_debug(struct ath_hw *ah);
+void ath9k_exit_debug(struct ath_hw *ah);
+#else
+static inline int ath9k_debug_create_root(void) { return 0; };
+static inline void ath9k_debug_remove_root(void) {};
+static inline int ath9k_init_debug(struct ath_hw *ah) { return 0; };
+static inline void ath9k_exit_debug(struct ath_hw *ah) {};
+#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
+
+#endif /* HTC_H */