forked from Minki/linux
a3be14b76d
When the USB device has been unplugged, there is no point in trying to send commands to the target. Fix this by denying all WMI commands in such a case. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
465 lines
11 KiB
C
465 lines
11 KiB
C
/*
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* Copyright (c) 2010 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef HTC_H
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#define HTC_H
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#include <linux/module.h>
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#include <linux/usb.h>
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#include <linux/firmware.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/leds.h>
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#include <net/mac80211.h>
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#include "common.h"
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#include "htc_hst.h"
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#include "hif_usb.h"
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#include "wmi.h"
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#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
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#define ATH_ANI_POLLINTERVAL 100 /* 100 ms */
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#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
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#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
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#define ATH_DEFAULT_BMISS_LIMIT 10
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#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
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#define TSF_TO_TU(_h, _l) \
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((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
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extern struct ieee80211_ops ath9k_htc_ops;
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extern int htc_modparam_nohwcrypt;
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enum htc_phymode {
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HTC_MODE_AUTO = 0,
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HTC_MODE_11A = 1,
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HTC_MODE_11B = 2,
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HTC_MODE_11G = 3,
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HTC_MODE_FH = 4,
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HTC_MODE_TURBO_A = 5,
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HTC_MODE_TURBO_G = 6,
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HTC_MODE_11NA = 7,
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HTC_MODE_11NG = 8
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};
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enum htc_opmode {
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HTC_M_STA = 1,
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HTC_M_IBSS = 0,
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HTC_M_AHDEMO = 3,
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HTC_M_HOSTAP = 6,
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HTC_M_MONITOR = 8,
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HTC_M_WDS = 2
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};
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#define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
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#define ATH9K_HTC_AMPDU 1
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#define ATH9K_HTC_NORMAL 2
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#define ATH9K_HTC_TX_CTSONLY 0x1
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#define ATH9K_HTC_TX_RTSCTS 0x2
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#define ATH9K_HTC_TX_USE_MIN_RATE 0x100
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struct tx_frame_hdr {
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u8 data_type;
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u8 node_idx;
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u8 vif_idx;
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u8 tidno;
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u32 flags; /* ATH9K_HTC_TX_* */
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u8 key_type;
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u8 keyix;
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u8 reserved[26];
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} __packed;
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struct tx_mgmt_hdr {
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u8 node_idx;
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u8 vif_idx;
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u8 tidno;
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u8 flags;
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u8 key_type;
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u8 keyix;
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u16 reserved;
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} __packed;
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struct tx_beacon_header {
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u8 len_changed;
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u8 vif_index;
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u16 rev;
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} __packed;
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struct ath9k_htc_target_hw {
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u32 flags;
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u32 flags_ext;
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u32 ampdu_limit;
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u8 ampdu_subframes;
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u8 tx_chainmask;
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u8 tx_chainmask_legacy;
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u8 rtscts_ratecode;
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u8 protmode;
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} __packed;
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struct ath9k_htc_cap_target {
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u32 flags;
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u32 flags_ext;
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u32 ampdu_limit;
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u8 ampdu_subframes;
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u8 tx_chainmask;
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u8 tx_chainmask_legacy;
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u8 rtscts_ratecode;
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u8 protmode;
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} __packed;
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struct ath9k_htc_target_vif {
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u8 index;
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u8 des_bssid[ETH_ALEN];
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__be32 opmode;
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u8 myaddr[ETH_ALEN];
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u8 bssid[ETH_ALEN];
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u32 flags;
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u32 flags_ext;
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u16 ps_sta;
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__be16 rtsthreshold;
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u8 ath_cap;
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u8 node;
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s8 mcast_rate;
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} __packed;
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#define ATH_HTC_STA_AUTH 0x0001
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#define ATH_HTC_STA_QOS 0x0002
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#define ATH_HTC_STA_ERP 0x0004
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#define ATH_HTC_STA_HT 0x0008
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/* FIXME: UAPSD variables */
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struct ath9k_htc_target_sta {
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u16 associd;
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u16 txpower;
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u32 ucastkey;
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u8 macaddr[ETH_ALEN];
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u8 bssid[ETH_ALEN];
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u8 sta_index;
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u8 vif_index;
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u8 vif_sta;
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__be16 flags; /* ATH_HTC_STA_* */
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u16 htcap;
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u8 valid;
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u16 capinfo;
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struct ath9k_htc_target_hw *hw;
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struct ath9k_htc_target_vif *vif;
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u16 txseqmgmt;
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u8 is_vif_sta;
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u16 maxampdu;
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u16 iv16;
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u32 iv32;
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} __packed;
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struct ath9k_htc_target_aggr {
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u8 sta_index;
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u8 tidno;
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u8 aggr_enable;
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u8 padding;
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} __packed;
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#define ATH_HTC_RATE_MAX 30
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#define WLAN_RC_DS_FLAG 0x01
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#define WLAN_RC_40_FLAG 0x02
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#define WLAN_RC_SGI_FLAG 0x04
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#define WLAN_RC_HT_FLAG 0x08
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struct ath9k_htc_rateset {
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u8 rs_nrates;
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u8 rs_rates[ATH_HTC_RATE_MAX];
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};
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struct ath9k_htc_rate {
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struct ath9k_htc_rateset legacy_rates;
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struct ath9k_htc_rateset ht_rates;
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} __packed;
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struct ath9k_htc_target_rate {
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u8 sta_index;
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u8 isnew;
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__be32 capflags;
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struct ath9k_htc_rate rates;
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};
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struct ath9k_htc_target_stats {
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__be32 tx_shortretry;
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__be32 tx_longretry;
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__be32 tx_xretries;
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__be32 ht_txunaggr_xretry;
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__be32 ht_tx_xretries;
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} __packed;
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struct ath9k_htc_vif {
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u8 index;
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};
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#define ATH9K_HTC_MAX_STA 8
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#define ATH9K_HTC_MAX_TID 8
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enum tid_aggr_state {
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AGGR_STOP = 0,
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AGGR_PROGRESS,
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AGGR_START,
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AGGR_OPERATIONAL
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};
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struct ath9k_htc_sta {
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u8 index;
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enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
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};
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struct ath9k_htc_aggr_work {
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u16 tid;
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u8 sta_addr[ETH_ALEN];
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struct ieee80211_hw *hw;
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struct ieee80211_vif *vif;
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enum ieee80211_ampdu_mlme_action action;
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struct mutex mutex;
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};
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#define ATH9K_HTC_RXBUF 256
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#define HTC_RX_FRAME_HEADER_SIZE 40
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struct ath9k_htc_rxbuf {
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bool in_process;
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struct sk_buff *skb;
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struct ath_htc_rx_status rxstatus;
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struct list_head list;
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};
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struct ath9k_htc_rx {
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int last_rssi; /* FIXME: per-STA */
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struct list_head rxbuf;
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spinlock_t rxbuflock;
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};
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struct ath9k_htc_tx_ctl {
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u8 type; /* ATH9K_HTC_* */
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};
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#ifdef CONFIG_ATH9K_HTC_DEBUGFS
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#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
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#define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
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struct ath_tx_stats {
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u32 buf_queued;
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u32 buf_completed;
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u32 skb_queued;
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u32 skb_completed;
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u32 skb_dropped;
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};
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struct ath_rx_stats {
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u32 skb_allocated;
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u32 skb_completed;
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u32 skb_dropped;
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};
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struct ath9k_debug {
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struct dentry *debugfs_phy;
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struct dentry *debugfs_tgt_stats;
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struct dentry *debugfs_xmit;
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struct dentry *debugfs_recv;
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struct ath_tx_stats tx_stats;
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struct ath_rx_stats rx_stats;
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u32 txrate;
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};
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#else
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#define TX_STAT_INC(c) do { } while (0)
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#define RX_STAT_INC(c) do { } while (0)
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#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
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#define ATH_LED_PIN_DEF 1
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#define ATH_LED_PIN_9287 8
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#define ATH_LED_PIN_9271 15
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#define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
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#define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
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enum ath_led_type {
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ATH_LED_RADIO,
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ATH_LED_ASSOC,
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ATH_LED_TX,
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ATH_LED_RX
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};
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struct ath_led {
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struct ath9k_htc_priv *priv;
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struct led_classdev led_cdev;
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enum ath_led_type led_type;
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struct delayed_work brightness_work;
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char name[32];
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bool registered;
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int brightness;
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};
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struct htc_beacon_config {
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u16 beacon_interval;
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u16 listen_interval;
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u16 dtim_period;
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u16 bmiss_timeout;
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u8 dtim_count;
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};
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#define OP_INVALID BIT(0)
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#define OP_SCANNING BIT(1)
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#define OP_FULL_RESET BIT(2)
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#define OP_LED_ASSOCIATED BIT(3)
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#define OP_LED_ON BIT(4)
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#define OP_PREAMBLE_SHORT BIT(5)
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#define OP_PROTECT_ENABLE BIT(6)
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#define OP_TXAGGR BIT(7)
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#define OP_ASSOCIATED BIT(8)
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#define OP_ENABLE_BEACON BIT(9)
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#define OP_LED_DEINIT BIT(10)
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#define OP_UNPLUGGED BIT(11)
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struct ath9k_htc_priv {
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struct device *dev;
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struct ieee80211_hw *hw;
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struct ath_hw *ah;
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struct htc_target *htc;
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struct wmi *wmi;
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enum htc_endpoint_id wmi_cmd_ep;
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enum htc_endpoint_id beacon_ep;
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enum htc_endpoint_id cab_ep;
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enum htc_endpoint_id uapsd_ep;
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enum htc_endpoint_id mgmt_ep;
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enum htc_endpoint_id data_be_ep;
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enum htc_endpoint_id data_bk_ep;
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enum htc_endpoint_id data_vi_ep;
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enum htc_endpoint_id data_vo_ep;
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u16 op_flags;
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u16 curtxpow;
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u16 txpowlimit;
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u16 nvifs;
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u16 nstations;
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u16 seq_no;
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u32 bmiss_cnt;
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struct sk_buff *beacon;
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spinlock_t beacon_lock;
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bool tx_queues_stop;
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spinlock_t tx_lock;
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struct ieee80211_vif *vif;
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struct htc_beacon_config cur_beacon_conf;
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unsigned int rxfilter;
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struct tasklet_struct wmi_tasklet;
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struct tasklet_struct rx_tasklet;
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struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
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struct ath9k_htc_rx rx;
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struct tasklet_struct tx_tasklet;
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struct sk_buff_head tx_queue;
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struct ath9k_htc_aggr_work aggr_work;
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struct delayed_work ath9k_aggr_work;
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struct delayed_work ath9k_ani_work;
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struct work_struct ps_work;
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struct mutex htc_pm_lock;
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unsigned long ps_usecount;
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bool ps_enabled;
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struct ath_led radio_led;
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struct ath_led assoc_led;
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struct ath_led tx_led;
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struct ath_led rx_led;
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struct delayed_work ath9k_led_blink_work;
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int led_on_duration;
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int led_off_duration;
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int led_on_cnt;
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int led_off_cnt;
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int hwq_map[ATH9K_WME_AC_VO+1];
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#ifdef CONFIG_ATH9K_HTC_DEBUGFS
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struct ath9k_debug debug;
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#endif
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struct ath9k_htc_target_rate tgt_rate;
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struct mutex mutex;
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};
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static inline void ath_read_cachesize(struct ath_common *common, int *csz)
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{
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common->bus_ops->read_cachesize(common, csz);
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}
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void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
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struct ieee80211_vif *vif);
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void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);
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void ath9k_htc_beacon_update(struct ath9k_htc_priv *priv,
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struct ieee80211_vif *vif);
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void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
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enum htc_endpoint_id ep_id);
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void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
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bool txok);
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void ath9k_htc_station_work(struct work_struct *work);
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void ath9k_htc_aggr_work(struct work_struct *work);
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void ath9k_ani_work(struct work_struct *work);;
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int ath9k_tx_init(struct ath9k_htc_priv *priv);
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void ath9k_tx_tasklet(unsigned long data);
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int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb);
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void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
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bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv,
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enum ath9k_tx_queue_subtype qtype);
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int get_hw_qnum(u16 queue, int *hwq_map);
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int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
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struct ath9k_tx_queue_info *qinfo);
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int ath9k_rx_init(struct ath9k_htc_priv *priv);
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void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
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void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
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void ath9k_rx_tasklet(unsigned long data);
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u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
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void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
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void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
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void ath9k_ps_work(struct work_struct *work);
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void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
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void ath9k_init_leds(struct ath9k_htc_priv *priv);
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void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
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int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
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u16 devid);
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void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
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#ifdef CONFIG_PM
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int ath9k_htc_resume(struct htc_target *htc_handle);
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#endif
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#ifdef CONFIG_ATH9K_HTC_DEBUGFS
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int ath9k_htc_debug_create_root(void);
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void ath9k_htc_debug_remove_root(void);
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int ath9k_htc_init_debug(struct ath_hw *ah);
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void ath9k_htc_exit_debug(struct ath_hw *ah);
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#else
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static inline int ath9k_htc_debug_create_root(void) { return 0; };
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static inline void ath9k_htc_debug_remove_root(void) {};
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static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
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static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
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#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
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#endif /* HTC_H */
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