220 lines
6.4 KiB
C
220 lines
6.4 KiB
C
/*
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* Copyright (c) 2012 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 FWEH_H_
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#define FWEH_H_
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#include <asm/unaligned.h>
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#include <linux/skbuff.h>
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#include <linux/if_ether.h>
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#include <linux/if.h>
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/* formward declarations */
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struct brcmf_pub;
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struct brcmf_if;
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struct brcmf_cfg80211_info;
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struct brcmf_event;
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/* list of firmware events */
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#define BRCMF_FWEH_EVENT_ENUM_DEFLIST \
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BRCMF_ENUM_DEF(SET_SSID, 0) \
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BRCMF_ENUM_DEF(JOIN, 1) \
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BRCMF_ENUM_DEF(START, 2) \
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BRCMF_ENUM_DEF(AUTH, 3) \
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BRCMF_ENUM_DEF(AUTH_IND, 4) \
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BRCMF_ENUM_DEF(DEAUTH, 5) \
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BRCMF_ENUM_DEF(DEAUTH_IND, 6) \
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BRCMF_ENUM_DEF(ASSOC, 7) \
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BRCMF_ENUM_DEF(ASSOC_IND, 8) \
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BRCMF_ENUM_DEF(REASSOC, 9) \
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BRCMF_ENUM_DEF(REASSOC_IND, 10) \
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BRCMF_ENUM_DEF(DISASSOC, 11) \
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BRCMF_ENUM_DEF(DISASSOC_IND, 12) \
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BRCMF_ENUM_DEF(QUIET_START, 13) \
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BRCMF_ENUM_DEF(QUIET_END, 14) \
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BRCMF_ENUM_DEF(BEACON_RX, 15) \
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BRCMF_ENUM_DEF(LINK, 16) \
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BRCMF_ENUM_DEF(MIC_ERROR, 17) \
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BRCMF_ENUM_DEF(NDIS_LINK, 18) \
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BRCMF_ENUM_DEF(ROAM, 19) \
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BRCMF_ENUM_DEF(TXFAIL, 20) \
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BRCMF_ENUM_DEF(PMKID_CACHE, 21) \
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BRCMF_ENUM_DEF(RETROGRADE_TSF, 22) \
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BRCMF_ENUM_DEF(PRUNE, 23) \
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BRCMF_ENUM_DEF(AUTOAUTH, 24) \
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BRCMF_ENUM_DEF(EAPOL_MSG, 25) \
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BRCMF_ENUM_DEF(SCAN_COMPLETE, 26) \
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BRCMF_ENUM_DEF(ADDTS_IND, 27) \
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BRCMF_ENUM_DEF(DELTS_IND, 28) \
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BRCMF_ENUM_DEF(BCNSENT_IND, 29) \
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BRCMF_ENUM_DEF(BCNRX_MSG, 30) \
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BRCMF_ENUM_DEF(BCNLOST_MSG, 31) \
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BRCMF_ENUM_DEF(ROAM_PREP, 32) \
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BRCMF_ENUM_DEF(PFN_NET_FOUND, 33) \
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BRCMF_ENUM_DEF(PFN_NET_LOST, 34) \
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BRCMF_ENUM_DEF(RESET_COMPLETE, 35) \
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BRCMF_ENUM_DEF(JOIN_START, 36) \
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BRCMF_ENUM_DEF(ROAM_START, 37) \
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BRCMF_ENUM_DEF(ASSOC_START, 38) \
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BRCMF_ENUM_DEF(IBSS_ASSOC, 39) \
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BRCMF_ENUM_DEF(RADIO, 40) \
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BRCMF_ENUM_DEF(PSM_WATCHDOG, 41) \
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BRCMF_ENUM_DEF(PROBREQ_MSG, 44) \
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BRCMF_ENUM_DEF(SCAN_CONFIRM_IND, 45) \
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BRCMF_ENUM_DEF(PSK_SUP, 46) \
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BRCMF_ENUM_DEF(COUNTRY_CODE_CHANGED, 47) \
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BRCMF_ENUM_DEF(EXCEEDED_MEDIUM_TIME, 48) \
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BRCMF_ENUM_DEF(ICV_ERROR, 49) \
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BRCMF_ENUM_DEF(UNICAST_DECODE_ERROR, 50) \
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BRCMF_ENUM_DEF(MULTICAST_DECODE_ERROR, 51) \
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BRCMF_ENUM_DEF(TRACE, 52) \
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BRCMF_ENUM_DEF(IF, 54) \
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BRCMF_ENUM_DEF(P2P_DISC_LISTEN_COMPLETE, 55) \
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BRCMF_ENUM_DEF(RSSI, 56) \
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BRCMF_ENUM_DEF(PFN_SCAN_COMPLETE, 57) \
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BRCMF_ENUM_DEF(EXTLOG_MSG, 58) \
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BRCMF_ENUM_DEF(ACTION_FRAME, 59) \
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BRCMF_ENUM_DEF(ACTION_FRAME_COMPLETE, 60) \
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BRCMF_ENUM_DEF(PRE_ASSOC_IND, 61) \
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BRCMF_ENUM_DEF(PRE_REASSOC_IND, 62) \
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BRCMF_ENUM_DEF(CHANNEL_ADOPTED, 63) \
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BRCMF_ENUM_DEF(AP_STARTED, 64) \
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BRCMF_ENUM_DEF(DFS_AP_STOP, 65) \
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BRCMF_ENUM_DEF(DFS_AP_RESUME, 66) \
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BRCMF_ENUM_DEF(ESCAN_RESULT, 69) \
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BRCMF_ENUM_DEF(ACTION_FRAME_OFF_CHAN_COMPLETE, 70) \
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BRCMF_ENUM_DEF(PROBERESP_MSG, 71) \
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BRCMF_ENUM_DEF(P2P_PROBEREQ_MSG, 72) \
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BRCMF_ENUM_DEF(DCS_REQUEST, 73) \
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BRCMF_ENUM_DEF(FIFO_CREDIT_MAP, 74) \
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BRCMF_ENUM_DEF(ACTION_FRAME_RX, 75)
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#define BRCMF_ENUM_DEF(id, val) \
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BRCMF_E_##id = (val),
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/* firmware event codes sent by the dongle */
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enum brcmf_fweh_event_code {
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BRCMF_FWEH_EVENT_ENUM_DEFLIST
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BRCMF_E_LAST
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};
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#undef BRCMF_ENUM_DEF
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/* flags field values in struct brcmf_event_msg */
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#define BRCMF_EVENT_MSG_LINK 0x01
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#define BRCMF_EVENT_MSG_FLUSHTXQ 0x02
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#define BRCMF_EVENT_MSG_GROUP 0x04
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/**
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* definitions for event packet validation.
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*/
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#define BRCMF_EVENT_OUI_OFFSET 19
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#define BRCM_OUI "\x00\x10\x18"
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#define DOT11_OUI_LEN 3
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#define BCMILCP_BCM_SUBTYPE_EVENT 1
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/**
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* struct brcmf_event_msg - firmware event message.
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*
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* @version: version information.
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* @flags: event flags.
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* @event_code: firmware event code.
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* @status: status information.
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* @reason: reason code.
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* @auth_type: authentication type.
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* @datalen: lenght of event data buffer.
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* @addr: ether address.
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* @ifname: interface name.
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* @ifidx: interface index.
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* @bsscfgidx: bsscfg index.
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*/
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struct brcmf_event_msg {
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u16 version;
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u16 flags;
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u32 event_code;
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u32 status;
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u32 reason;
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s32 auth_type;
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u32 datalen;
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u8 addr[ETH_ALEN];
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char ifname[IFNAMSIZ];
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u8 ifidx;
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u8 bsscfgidx;
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};
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typedef int (*brcmf_fweh_handler_t)(struct brcmf_if *ifp,
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const struct brcmf_event_msg *evtmsg,
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void *data);
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/**
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* struct brcmf_fweh_info - firmware event handling information.
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*
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* @event_work: event worker.
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* @evt_q_lock: lock for event queue protection.
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* @event_q: event queue.
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* @evt_handler: registered event handlers.
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*/
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struct brcmf_fweh_info {
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struct work_struct event_work;
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spinlock_t evt_q_lock;
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struct list_head event_q;
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int (*evt_handler[BRCMF_E_LAST])(struct brcmf_if *ifp,
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const struct brcmf_event_msg *evtmsg,
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void *data);
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};
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void brcmf_fweh_attach(struct brcmf_pub *drvr);
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void brcmf_fweh_detach(struct brcmf_pub *drvr);
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int brcmf_fweh_register(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code,
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int (*handler)(struct brcmf_if *ifp,
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const struct brcmf_event_msg *evtmsg,
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void *data));
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void brcmf_fweh_unregister(struct brcmf_pub *drvr,
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enum brcmf_fweh_event_code code);
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int brcmf_fweh_activate_events(struct brcmf_if *ifp);
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void brcmf_fweh_process_event(struct brcmf_pub *drvr,
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struct brcmf_event *event_packet, u8 *ifidx);
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static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
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struct sk_buff *skb, u8 *ifidx)
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{
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struct brcmf_event *event_packet;
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u8 *data;
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u16 usr_stype;
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/* only process events when protocol matches */
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if (skb->protocol != cpu_to_be16(ETH_P_LINK_CTL))
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return;
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/* check for BRCM oui match */
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event_packet = (struct brcmf_event *)skb_mac_header(skb);
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data = (u8 *)event_packet;
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data += BRCMF_EVENT_OUI_OFFSET;
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if (memcmp(BRCM_OUI, data, DOT11_OUI_LEN))
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return;
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/* final match on usr_subtype */
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data += DOT11_OUI_LEN;
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usr_stype = get_unaligned_be16(data);
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if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT)
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return;
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brcmf_fweh_process_event(drvr, event_packet, ifidx);
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}
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#endif /* FWEH_H_ */
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