510 lines
13 KiB
C
510 lines
13 KiB
C
/*
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* Copyright (c) 2010 Broadcom Corporation
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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 ANY
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* 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 ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _wl_cfg80211_h_
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#define _wl_cfg80211_h_
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struct brcmf_cfg80211_conf;
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struct brcmf_cfg80211_iface;
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struct brcmf_cfg80211_priv;
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struct brcmf_cfg80211_security;
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struct brcmf_cfg80211_ibss;
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#define WL_DBG_NONE 0
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#define WL_DBG_CONN (1 << 5)
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#define WL_DBG_SCAN (1 << 4)
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#define WL_DBG_TRACE (1 << 3)
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#define WL_DBG_INFO (1 << 1)
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#define WL_DBG_ERR (1 << 0)
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#define WL_DBG_MASK ((WL_DBG_INFO | WL_DBG_ERR | WL_DBG_TRACE) | \
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(WL_DBG_SCAN) | (WL_DBG_CONN))
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#define WL_ERR(fmt, ...) \
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do { \
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if (brcmf_dbg_level & WL_DBG_ERR) { \
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if (net_ratelimit()) { \
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pr_err("ERROR @%s : " fmt, \
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__func__, ##__VA_ARGS__); \
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} \
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} \
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} while (0)
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#if (defined DEBUG)
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#define WL_INFO(fmt, ...) \
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do { \
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if (brcmf_dbg_level & WL_DBG_INFO) { \
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if (net_ratelimit()) { \
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pr_err("INFO @%s : " fmt, \
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__func__, ##__VA_ARGS__); \
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} \
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} \
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} while (0)
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#define WL_TRACE(fmt, ...) \
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do { \
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if (brcmf_dbg_level & WL_DBG_TRACE) { \
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if (net_ratelimit()) { \
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pr_err("TRACE @%s : " fmt, \
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__func__, ##__VA_ARGS__); \
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} \
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} \
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} while (0)
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#define WL_SCAN(fmt, ...) \
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do { \
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if (brcmf_dbg_level & WL_DBG_SCAN) { \
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if (net_ratelimit()) { \
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pr_err("SCAN @%s : " fmt, \
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__func__, ##__VA_ARGS__); \
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} \
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} \
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} while (0)
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#define WL_CONN(fmt, ...) \
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do { \
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if (brcmf_dbg_level & WL_DBG_CONN) { \
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if (net_ratelimit()) { \
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pr_err("CONN @%s : " fmt, \
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__func__, ##__VA_ARGS__); \
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} \
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} \
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} while (0)
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#else /* (defined DEBUG) */
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#define WL_INFO(fmt, args...)
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#define WL_TRACE(fmt, args...)
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#define WL_SCAN(fmt, args...)
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#define WL_CONN(fmt, args...)
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#endif /* (defined DEBUG) */
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#define WL_NUM_SCAN_MAX 1
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#define WL_NUM_PMKIDS_MAX MAXPMKID /* will be used
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* for 2.6.33 kernel
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* or later
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*/
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#define WL_SCAN_BUF_MAX (1024 * 8)
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#define WL_TLV_INFO_MAX 1024
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#define WL_BSS_INFO_MAX 2048
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#define WL_ASSOC_INFO_MAX 512 /*
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* needs to grab assoc info from dongle to
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* report it to cfg80211 through "connect"
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* event
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*/
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#define WL_DCMD_LEN_MAX 1024
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#define WL_EXTRA_BUF_MAX 2048
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#define WL_ISCAN_BUF_MAX 2048 /*
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* the buf length can be BRCMF_DCMD_MAXLEN
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* to reduce iteration
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*/
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#define WL_ISCAN_TIMER_INTERVAL_MS 3000
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#define WL_SCAN_ERSULTS_LAST (BRCMF_SCAN_RESULTS_NO_MEM+1)
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#define WL_AP_MAX 256 /* virtually unlimitted as long
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* as kernel memory allows
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*/
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#define WL_ROAM_TRIGGER_LEVEL -75
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#define WL_ROAM_DELTA 20
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#define WL_BEACON_TIMEOUT 3
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#define WL_SCAN_CHANNEL_TIME 40
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#define WL_SCAN_UNASSOC_TIME 40
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#define WL_SCAN_PASSIVE_TIME 120
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#define WL_ESCAN_BUF_SIZE (1024 * 64)
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#define WL_ESCAN_TIMER_INTERVAL_MS 8000 /* E-Scan timeout */
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#define WL_ESCAN_ACTION_START 1
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#define WL_ESCAN_ACTION_CONTINUE 2
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#define WL_ESCAN_ACTION_ABORT 3
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/* dongle status */
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enum wl_status {
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WL_STATUS_READY,
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WL_STATUS_SCANNING,
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WL_STATUS_SCAN_ABORTING,
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WL_STATUS_CONNECTING,
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WL_STATUS_CONNECTED
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};
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/* wi-fi mode */
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enum wl_mode {
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WL_MODE_BSS,
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WL_MODE_IBSS,
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WL_MODE_AP
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};
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/* dongle profile list */
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enum wl_prof_list {
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WL_PROF_MODE,
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WL_PROF_SSID,
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WL_PROF_SEC,
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WL_PROF_IBSS,
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WL_PROF_BAND,
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WL_PROF_BSSID,
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WL_PROF_ACT,
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WL_PROF_BEACONINT,
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WL_PROF_DTIMPERIOD
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};
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/* dongle iscan state */
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enum wl_iscan_state {
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WL_ISCAN_STATE_IDLE,
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WL_ISCAN_STATE_SCANING
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};
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/* dongle configuration */
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struct brcmf_cfg80211_conf {
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u32 mode; /* adhoc , infrastructure or ap */
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u32 frag_threshold;
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u32 rts_threshold;
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u32 retry_short;
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u32 retry_long;
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s32 tx_power;
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struct ieee80211_channel channel;
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};
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/* cfg80211 main event loop */
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struct brcmf_cfg80211_event_loop {
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s32(*handler[BRCMF_E_LAST]) (struct brcmf_cfg80211_priv *cfg_priv,
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struct net_device *ndev,
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const struct brcmf_event_msg *e,
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void *data);
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};
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/* representing interface of cfg80211 plane */
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struct brcmf_cfg80211_iface {
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struct brcmf_cfg80211_priv *cfg_priv;
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};
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struct brcmf_cfg80211_dev {
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void *driver_data; /* to store cfg80211 object information */
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};
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/* basic structure of scan request */
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struct brcmf_cfg80211_scan_req {
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struct brcmf_ssid_le ssid_le;
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};
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/* basic structure of information element */
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struct brcmf_cfg80211_ie {
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u16 offset;
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u8 buf[WL_TLV_INFO_MAX];
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};
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/* event queue for cfg80211 main event */
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struct brcmf_cfg80211_event_q {
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struct list_head evt_q_list;
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u32 etype;
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struct brcmf_event_msg emsg;
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s8 edata[1];
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};
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/* security information with currently associated ap */
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struct brcmf_cfg80211_security {
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u32 wpa_versions;
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u32 auth_type;
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u32 cipher_pairwise;
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u32 cipher_group;
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u32 wpa_auth;
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};
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/* ibss information for currently joined ibss network */
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struct brcmf_cfg80211_ibss {
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u8 beacon_interval; /* in millisecond */
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u8 atim; /* in millisecond */
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s8 join_only;
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u8 band;
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u8 channel;
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};
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/* dongle profile */
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struct brcmf_cfg80211_profile {
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u32 mode;
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struct brcmf_ssid ssid;
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u8 bssid[ETH_ALEN];
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u16 beacon_interval;
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u8 dtim_period;
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struct brcmf_cfg80211_security sec;
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struct brcmf_cfg80211_ibss ibss;
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s32 band;
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};
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/* dongle iscan event loop */
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struct brcmf_cfg80211_iscan_eloop {
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s32 (*handler[WL_SCAN_ERSULTS_LAST])
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(struct brcmf_cfg80211_priv *cfg_priv);
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};
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/* dongle iscan controller */
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struct brcmf_cfg80211_iscan_ctrl {
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struct net_device *ndev;
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struct timer_list timer;
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u32 timer_ms;
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u32 timer_on;
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s32 state;
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struct work_struct work;
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struct brcmf_cfg80211_iscan_eloop el;
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void *data;
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s8 dcmd_buf[BRCMF_DCMD_SMLEN];
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s8 scan_buf[WL_ISCAN_BUF_MAX];
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};
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/* association inform */
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struct brcmf_cfg80211_connect_info {
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u8 *req_ie;
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s32 req_ie_len;
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u8 *resp_ie;
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s32 resp_ie_len;
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};
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/* assoc ie length */
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struct brcmf_cfg80211_assoc_ielen_le {
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__le32 req_len;
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__le32 resp_len;
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};
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/* wpa2 pmk list */
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struct brcmf_cfg80211_pmk_list {
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struct pmkid_list pmkids;
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struct pmkid foo[MAXPMKID - 1];
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};
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/* dongle escan state */
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enum wl_escan_state {
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WL_ESCAN_STATE_IDLE,
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WL_ESCAN_STATE_SCANNING
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};
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struct escan_info {
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u32 escan_state;
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u8 escan_buf[WL_ESCAN_BUF_SIZE];
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struct wiphy *wiphy;
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struct net_device *ndev;
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};
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/**
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* struct brcmf_pno_param_le - PNO scan configuration parameters
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*
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* @version: PNO parameters version.
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* @scan_freq: scan frequency.
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* @lost_network_timeout: #sec. to declare discovered network as lost.
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* @flags: Bit field to control features of PFN such as sort criteria auto
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* enable switch and background scan.
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* @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
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* criteria.
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* @bestn: number of best networks in each scan.
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* @mscan: number of scans recorded.
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* @repeat: minimum number of scan intervals before scan frequency changes
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* in adaptive scan.
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* @exp: exponent of 2 for maximum scan interval.
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* @slow_freq: slow scan period.
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*/
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struct brcmf_pno_param_le {
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__le32 version;
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__le32 scan_freq;
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__le32 lost_network_timeout;
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__le16 flags;
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__le16 rssi_margin;
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u8 bestn;
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u8 mscan;
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u8 repeat;
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u8 exp;
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__le32 slow_freq;
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};
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/**
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* struct brcmf_pno_net_param_le - scan parameters per preferred network.
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*
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* @ssid: ssid name and its length.
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* @flags: bit2: hidden.
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* @infra: BSS vs IBSS.
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* @auth: Open vs Closed.
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* @wpa_auth: WPA type.
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* @wsec: wsec value.
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*/
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struct brcmf_pno_net_param_le {
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struct brcmf_ssid_le ssid;
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__le32 flags;
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__le32 infra;
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__le32 auth;
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__le32 wpa_auth;
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__le32 wsec;
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};
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/**
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* struct brcmf_pno_net_info_le - information per found network.
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*
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* @bssid: BSS network identifier.
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* @channel: channel number only.
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* @SSID_len: length of ssid.
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* @SSID: ssid characters.
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* @RSSI: receive signal strength (in dBm).
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* @timestamp: age in seconds.
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*/
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struct brcmf_pno_net_info_le {
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u8 bssid[ETH_ALEN];
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u8 channel;
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u8 SSID_len;
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u8 SSID[32];
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__le16 RSSI;
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__le16 timestamp;
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};
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/**
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* struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
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*
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* @version: PNO version identifier.
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* @status: indicates completion status of PNO scan.
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* @count: amount of brcmf_pno_net_info_le entries appended.
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*/
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struct brcmf_pno_scanresults_le {
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__le32 version;
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__le32 status;
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__le32 count;
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};
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/**
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* struct brcmf_cfg80211_priv - dongle private data of cfg80211 interface
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*
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* @wdev: representing wl cfg80211 device.
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* @conf: dongle configuration.
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* @scan_request: cfg80211 scan request object.
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* @el: main event loop.
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* @evt_q_list: used for event queue.
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* @evt_q_lock: for event queue synchronization.
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* @usr_sync: mainly for dongle up/down synchronization.
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* @bss_list: bss_list holding scanned ap information.
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* @scan_results: results of the last scan.
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* @scan_req_int: internal scan request object.
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* @bss_info: bss information for cfg80211 layer.
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* @ie: information element object for internal purpose.
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* @profile: holding dongle profile.
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* @iscan: iscan controller information.
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* @conn_info: association info.
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* @pmk_list: wpa2 pmk list.
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* @event_work: event handler work struct.
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* @status: current dongle status.
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* @pub: common driver information.
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* @channel: current channel.
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* @iscan_on: iscan on/off switch.
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* @iscan_kickstart: indicate iscan already started.
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* @active_scan: current scan mode.
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* @sched_escan: e-scan for scheduled scan support running.
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* @ibss_starter: indicates this sta is ibss starter.
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* @link_up: link/connection up flag.
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* @pwr_save: indicate whether dongle to support power save mode.
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* @dongle_up: indicate whether dongle up or not.
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* @roam_on: on/off switch for dongle self-roaming.
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* @scan_tried: indicates if first scan attempted.
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* @dcmd_buf: dcmd buffer.
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* @extra_buf: mainly to grab assoc information.
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* @debugfsdir: debugfs folder for this device.
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* @escan_on: escan on/off switch.
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* @escan_info: escan information.
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* @escan_timeout: Timer for catch scan timeout.
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* @escan_timeout_work: scan timeout worker.
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* @escan_ioctl_buf: dongle command buffer for escan commands.
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* @ci: used to link this structure to netdev private data.
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*/
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struct brcmf_cfg80211_priv {
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struct wireless_dev *wdev;
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struct brcmf_cfg80211_conf *conf;
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struct cfg80211_scan_request *scan_request;
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struct brcmf_cfg80211_event_loop el;
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struct list_head evt_q_list;
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spinlock_t evt_q_lock;
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struct mutex usr_sync;
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struct brcmf_scan_results *bss_list;
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struct brcmf_scan_results *scan_results;
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struct brcmf_cfg80211_scan_req *scan_req_int;
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struct wl_cfg80211_bss_info *bss_info;
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struct brcmf_cfg80211_ie ie;
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struct brcmf_cfg80211_profile *profile;
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struct brcmf_cfg80211_iscan_ctrl *iscan;
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struct brcmf_cfg80211_connect_info conn_info;
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struct brcmf_cfg80211_pmk_list *pmk_list;
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struct work_struct event_work;
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unsigned long status;
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struct brcmf_pub *pub;
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u32 channel;
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bool iscan_on;
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bool iscan_kickstart;
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bool active_scan;
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bool sched_escan;
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bool ibss_starter;
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bool link_up;
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bool pwr_save;
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bool dongle_up;
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bool roam_on;
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bool scan_tried;
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u8 *dcmd_buf;
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u8 *extra_buf;
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struct dentry *debugfsdir;
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bool escan_on;
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struct escan_info escan_info;
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struct timer_list escan_timeout;
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struct work_struct escan_timeout_work;
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u8 *escan_ioctl_buf;
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u8 ci[0] __aligned(NETDEV_ALIGN);
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};
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static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_priv *w)
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{
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return w->wdev->wiphy;
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}
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static inline struct brcmf_cfg80211_priv *wiphy_to_cfg(struct wiphy *w)
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{
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return (struct brcmf_cfg80211_priv *)(wiphy_priv(w));
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}
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static inline struct brcmf_cfg80211_priv *wdev_to_cfg(struct wireless_dev *wd)
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{
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return (struct brcmf_cfg80211_priv *)(wdev_priv(wd));
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}
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static inline struct net_device *cfg_to_ndev(struct brcmf_cfg80211_priv *cfg)
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{
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return cfg->wdev->netdev;
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}
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static inline struct brcmf_cfg80211_priv *ndev_to_cfg(struct net_device *ndev)
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{
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return wdev_to_cfg(ndev->ieee80211_ptr);
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}
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#define iscan_to_cfg(i) ((struct brcmf_cfg80211_priv *)(i->data))
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#define cfg_to_iscan(w) (w->iscan)
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static inline struct
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brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_priv *cfg)
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{
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return &cfg->conn_info;
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}
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extern struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev,
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struct device *busdev,
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struct brcmf_pub *drvr);
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extern void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg);
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/* event handler from dongle */
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extern void brcmf_cfg80211_event(struct net_device *ndev,
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const struct brcmf_event_msg *e, void *data);
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extern s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev);
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extern s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev);
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#endif /* _wl_cfg80211_h_ */
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