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linux_dsm_epyc7002/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
Rasmus Villemoes e843bb199b net/wireless/brcm80211/brcmfmac: Make return type and name reflect actual semantics 
Applying ++ to a bool is equivalent to setting it true, regardless of
its initial value (bools are not uint1_t). Hence the function
wl_get_vif_state_all can only ever return true/false. The only in-tree
caller uses its return value as a boolean. So update its return type,
and since the list traversal and bit testing have no side effects,
just return true immediately. Its return value tells if any vif is in
the specified state, so also rename it to brcmf_get_vif_state_any.

Reviewed-by: Arend van Spriel<arend@broadcom.com>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-25 15:32:47 -04:00

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/*
* Copyright (c) 2010 Broadcom Corporation
*
* 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 _wl_cfg80211_h_
#define _wl_cfg80211_h_
/* for brcmu_d11inf */
#include <brcmu_d11.h>
#define WL_NUM_SCAN_MAX 10
#define WL_NUM_PMKIDS_MAX MAXPMKID
#define WL_TLV_INFO_MAX 1024
#define WL_BSS_INFO_MAX 2048
#define WL_ASSOC_INFO_MAX 512 /* assoc related fil max buf */
#define WL_EXTRA_BUF_MAX 2048
#define WL_ROAM_TRIGGER_LEVEL -75
#define WL_ROAM_DELTA 20
#define WL_BEACON_TIMEOUT 3
#define WL_SCAN_CHANNEL_TIME 40
#define WL_SCAN_UNASSOC_TIME 40
#define WL_SCAN_PASSIVE_TIME 120
#define WL_ESCAN_BUF_SIZE (1024 * 64)
#define WL_ESCAN_TIMER_INTERVAL_MS 8000 /* E-Scan timeout */
#define WL_ESCAN_ACTION_START 1
#define WL_ESCAN_ACTION_CONTINUE 2
#define WL_ESCAN_ACTION_ABORT 3
#define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
#define IE_MAX_LEN 512
/* IE TLV processing */
#define TLV_LEN_OFF 1 /* length offset */
#define TLV_HDR_LEN 2 /* header length */
#define TLV_BODY_OFF 2 /* body offset */
#define TLV_OUI_LEN 3 /* oui id length */
/* 802.11 Mgmt Packet flags */
#define BRCMF_VNDR_IE_BEACON_FLAG 0x1
#define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
#define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
#define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
#define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
#define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
/* vendor IE in IW advertisement protocol ID field */
#define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
/* allow custom IE id */
#define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100
/* P2P Action Frames flags (spec ordered) */
#define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
#define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
#define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
#define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
#define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
#define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
#define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
#define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
#define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000
#define BRCMF_VNDR_IE_P2PAF_SHIFT 12
/**
* enum brcmf_scan_status - scan engine status
*
* @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
* @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
* @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
*/
enum brcmf_scan_status {
BRCMF_SCAN_STATUS_BUSY,
BRCMF_SCAN_STATUS_ABORT,
BRCMF_SCAN_STATUS_SUPPRESS,
};
/* dongle configuration */
struct brcmf_cfg80211_conf {
u32 frag_threshold;
u32 rts_threshold;
u32 retry_short;
u32 retry_long;
s32 tx_power;
struct ieee80211_channel channel;
};
/* basic structure of scan request */
struct brcmf_cfg80211_scan_req {
struct brcmf_ssid_le ssid_le;
};
/* basic structure of information element */
struct brcmf_cfg80211_ie {
u16 offset;
u8 buf[WL_TLV_INFO_MAX];
};
/* security information with currently associated ap */
struct brcmf_cfg80211_security {
u32 wpa_versions;
u32 auth_type;
u32 cipher_pairwise;
u32 cipher_group;
u32 wpa_auth;
};
/**
* struct brcmf_cfg80211_profile - profile information.
*
* @ssid: ssid of associated/associating ap.
* @bssid: bssid of joined/joining ibss.
* @sec: security information.
*/
struct brcmf_cfg80211_profile {
struct brcmf_ssid ssid;
u8 bssid[ETH_ALEN];
struct brcmf_cfg80211_security sec;
};
/**
* enum brcmf_vif_status - bit indices for vif status.
*
* @BRCMF_VIF_STATUS_READY: ready for operation.
* @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
* @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
* @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
* @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
* @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
*/
enum brcmf_vif_status {
BRCMF_VIF_STATUS_READY,
BRCMF_VIF_STATUS_CONNECTING,
BRCMF_VIF_STATUS_CONNECTED,
BRCMF_VIF_STATUS_DISCONNECTING,
BRCMF_VIF_STATUS_AP_CREATING,
BRCMF_VIF_STATUS_AP_CREATED
};
/**
* struct vif_saved_ie - holds saved IEs for a virtual interface.
*
* @probe_req_ie: IE info for probe request.
* @probe_res_ie: IE info for probe response.
* @beacon_ie: IE info for beacon frame.
* @probe_req_ie_len: IE info length for probe request.
* @probe_res_ie_len: IE info length for probe response.
* @beacon_ie_len: IE info length for beacon frame.
*/
struct vif_saved_ie {
u8 probe_req_ie[IE_MAX_LEN];
u8 probe_res_ie[IE_MAX_LEN];
u8 beacon_ie[IE_MAX_LEN];
u8 assoc_req_ie[IE_MAX_LEN];
u32 probe_req_ie_len;
u32 probe_res_ie_len;
u32 beacon_ie_len;
u32 assoc_req_ie_len;
};
/**
* struct brcmf_cfg80211_vif - virtual interface specific information.
*
* @ifp: lower layer interface pointer
* @wdev: wireless device.
* @profile: profile information.
* @roam_off: roaming state.
* @sme_state: SME state using enum brcmf_vif_status bits.
* @pm_block: power-management blocked.
* @list: linked list.
* @mgmt_rx_reg: registered rx mgmt frame types.
*/
struct brcmf_cfg80211_vif {
struct brcmf_if *ifp;
struct wireless_dev wdev;
struct brcmf_cfg80211_profile profile;
s32 roam_off;
unsigned long sme_state;
bool pm_block;
struct vif_saved_ie saved_ie;
struct list_head list;
u16 mgmt_rx_reg;
};
/* association inform */
struct brcmf_cfg80211_connect_info {
u8 *req_ie;
s32 req_ie_len;
u8 *resp_ie;
s32 resp_ie_len;
};
/* assoc ie length */
struct brcmf_cfg80211_assoc_ielen_le {
__le32 req_len;
__le32 resp_len;
};
/* wpa2 pmk list */
struct brcmf_cfg80211_pmk_list {
struct pmkid_list pmkids;
struct pmkid foo[MAXPMKID - 1];
};
/* dongle escan state */
enum wl_escan_state {
WL_ESCAN_STATE_IDLE,
WL_ESCAN_STATE_SCANNING
};
struct escan_info {
u32 escan_state;
u8 escan_buf[WL_ESCAN_BUF_SIZE];
struct wiphy *wiphy;
struct brcmf_if *ifp;
s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
struct cfg80211_scan_request *request, u16 action);
};
/**
* struct brcmf_pno_param_le - PNO scan configuration parameters
*
* @version: PNO parameters version.
* @scan_freq: scan frequency.
* @lost_network_timeout: #sec. to declare discovered network as lost.
* @flags: Bit field to control features of PFN such as sort criteria auto
* enable switch and background scan.
* @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
* criteria.
* @bestn: number of best networks in each scan.
* @mscan: number of scans recorded.
* @repeat: minimum number of scan intervals before scan frequency changes
* in adaptive scan.
* @exp: exponent of 2 for maximum scan interval.
* @slow_freq: slow scan period.
*/
struct brcmf_pno_param_le {
__le32 version;
__le32 scan_freq;
__le32 lost_network_timeout;
__le16 flags;
__le16 rssi_margin;
u8 bestn;
u8 mscan;
u8 repeat;
u8 exp;
__le32 slow_freq;
};
/**
* struct brcmf_pno_net_param_le - scan parameters per preferred network.
*
* @ssid: ssid name and its length.
* @flags: bit2: hidden.
* @infra: BSS vs IBSS.
* @auth: Open vs Closed.
* @wpa_auth: WPA type.
* @wsec: wsec value.
*/
struct brcmf_pno_net_param_le {
struct brcmf_ssid_le ssid;
__le32 flags;
__le32 infra;
__le32 auth;
__le32 wpa_auth;
__le32 wsec;
};
/**
* struct brcmf_pno_net_info_le - information per found network.
*
* @bssid: BSS network identifier.
* @channel: channel number only.
* @SSID_len: length of ssid.
* @SSID: ssid characters.
* @RSSI: receive signal strength (in dBm).
* @timestamp: age in seconds.
*/
struct brcmf_pno_net_info_le {
u8 bssid[ETH_ALEN];
u8 channel;
u8 SSID_len;
u8 SSID[32];
__le16 RSSI;
__le16 timestamp;
};
/**
* struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
*
* @version: PNO version identifier.
* @status: indicates completion status of PNO scan.
* @count: amount of brcmf_pno_net_info_le entries appended.
*/
struct brcmf_pno_scanresults_le {
__le32 version;
__le32 status;
__le32 count;
};
/**
* struct brcmf_cfg80211_vif_event - virtual interface event information.
*
* @vif_wq: waitqueue awaiting interface event from firmware.
* @vif_event_lock: protects other members in this structure.
* @vif_complete: completion for net attach.
* @action: either add, change, or delete.
* @vif: virtual interface object related to the event.
*/
struct brcmf_cfg80211_vif_event {
wait_queue_head_t vif_wq;
struct mutex vif_event_lock;
u8 action;
struct brcmf_cfg80211_vif *vif;
};
/**
* struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
*
* @wiphy: wiphy object for cfg80211 interface.
* @conf: dongle configuration.
* @p2p: peer-to-peer specific information.
* @btcoex: Bluetooth coexistence information.
* @scan_request: cfg80211 scan request object.
* @usr_sync: mainly for dongle up/down synchronization.
* @bss_list: bss_list holding scanned ap information.
* @scan_req_int: internal scan request object.
* @bss_info: bss information for cfg80211 layer.
* @ie: information element object for internal purpose.
* @conn_info: association info.
* @pmk_list: wpa2 pmk list.
* @scan_status: scan activity on the dongle.
* @pub: common driver information.
* @channel: current channel.
* @active_scan: current scan mode.
* @sched_escan: e-scan for scheduled scan support running.
* @ibss_starter: indicates this sta is ibss starter.
* @pwr_save: indicate whether dongle to support power save mode.
* @dongle_up: indicate whether dongle up or not.
* @roam_on: on/off switch for dongle self-roaming.
* @scan_tried: indicates if first scan attempted.
* @dcmd_buf: dcmd buffer.
* @extra_buf: mainly to grab assoc information.
* @debugfsdir: debugfs folder for this device.
* @escan_info: escan information.
* @escan_timeout: Timer for catch scan timeout.
* @escan_timeout_work: scan timeout worker.
* @escan_ioctl_buf: dongle command buffer for escan commands.
* @vif_list: linked list of vif instances.
* @vif_cnt: number of vif instances.
* @vif_event: vif event signalling.
*/
struct brcmf_cfg80211_info {
struct wiphy *wiphy;
struct brcmf_cfg80211_conf *conf;
struct brcmf_p2p_info p2p;
struct brcmf_btcoex_info *btcoex;
struct cfg80211_scan_request *scan_request;
struct mutex usr_sync;
struct brcmf_scan_results *bss_list;
struct brcmf_cfg80211_scan_req scan_req_int;
struct wl_cfg80211_bss_info *bss_info;
struct brcmf_cfg80211_ie ie;
struct brcmf_cfg80211_connect_info conn_info;
struct brcmf_cfg80211_pmk_list *pmk_list;
unsigned long scan_status;
struct brcmf_pub *pub;
u32 channel;
bool active_scan;
bool sched_escan;
bool ibss_starter;
bool pwr_save;
bool dongle_up;
bool scan_tried;
u8 *dcmd_buf;
u8 *extra_buf;
struct dentry *debugfsdir;
struct escan_info escan_info;
struct timer_list escan_timeout;
struct work_struct escan_timeout_work;
u8 *escan_ioctl_buf;
struct list_head vif_list;
struct brcmf_cfg80211_vif_event vif_event;
struct completion vif_disabled;
struct brcmu_d11inf d11inf;
};
/**
* struct brcmf_tlv - tag_ID/length/value_buffer tuple.
*
* @id: tag identifier.
* @len: number of bytes in value buffer.
* @data: value buffer.
*/
struct brcmf_tlv {
u8 id;
u8 len;
u8 data[1];
};
static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
{
return cfg->wiphy;
}
static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
{
return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
}
static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
{
return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
}
static inline
struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
{
struct brcmf_cfg80211_vif *vif;
vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
return vif->wdev.netdev;
}
static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
{
return wdev_to_cfg(ndev->ieee80211_ptr);
}
static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
{
struct brcmf_if *ifp = netdev_priv(nd);
return &ifp->vif->profile;
}
static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
{
struct brcmf_if *ifp = netdev_priv(ndev);
return ifp->vif;
}
static inline struct
brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
{
return &cfg->conn_info;
}
struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
struct device *busdev);
void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
s32 brcmf_cfg80211_up(struct net_device *ndev);
s32 brcmf_cfg80211_down(struct net_device *ndev);
enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
enum nl80211_iftype type,
bool pm_block);
void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
const u8 *vndr_ie_buf, u32 vndr_ie_len);
s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
const struct brcmf_tlv *
brcmf_parse_tlvs(const void *buf, int buflen, uint key);
u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
struct ieee80211_channel *ch);
bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, unsigned long state);
void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
struct brcmf_cfg80211_vif *vif);
bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
u8 action, ulong timeout);
s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
struct brcmf_if *ifp, bool aborted,
bool fw_abort);
void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
void brcmf_cfg80211_free_netdev(struct net_device *ndev);
#endif /* _wl_cfg80211_h_ */
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