diff options
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h | 104 |
1 files changed, 71 insertions, 33 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h index 816f80ea925b..e327dd58d29c 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h @@ -1,24 +1,13 @@ +// SPDX-License-Identifier: ISC /* * Copyright (c) 2012 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 FWEH_H_ #define FWEH_H_ -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/skbuff.h> #include <linux/if_ether.h> #include <linux/if.h> @@ -28,6 +17,10 @@ struct brcmf_pub; struct brcmf_if; struct brcmf_cfg80211_info; +#define BRCMF_ABSTRACT_EVENT_BIT BIT(31) +#define BRCMF_ABSTRACT_ENUM_DEF(_id, _val) \ + BRCMF_ENUM_DEF(_id, (BRCMF_ABSTRACT_EVENT_BIT | (_val))) + /* list of firmware events */ #define BRCMF_FWEH_EVENT_ENUM_DEFLIST \ BRCMF_ENUM_DEF(SET_SSID, 0) \ @@ -101,7 +94,11 @@ struct brcmf_cfg80211_info; BRCMF_ENUM_DEF(FIFO_CREDIT_MAP, 74) \ BRCMF_ENUM_DEF(ACTION_FRAME_RX, 75) \ BRCMF_ENUM_DEF(TDLS_PEER_EVENT, 92) \ - BRCMF_ENUM_DEF(BCMC_CREDIT_SUPPORT, 127) + BRCMF_ENUM_DEF(BCMC_CREDIT_SUPPORT, 127) \ + BRCMF_ABSTRACT_ENUM_DEF(EXT_AUTH_REQ, 0) \ + BRCMF_ABSTRACT_ENUM_DEF(EXT_AUTH_FRAME_RX, 1) \ + BRCMF_ABSTRACT_ENUM_DEF(MGMT_FRAME_TXSTATUS, 2) \ + BRCMF_ABSTRACT_ENUM_DEF(MGMT_FRAME_OFFCHAN_DONE, 3) #define BRCMF_ENUM_DEF(id, val) \ BRCMF_E_##id = (val), @@ -109,16 +106,9 @@ struct brcmf_cfg80211_info; /* firmware event codes sent by the dongle */ enum brcmf_fweh_event_code { BRCMF_FWEH_EVENT_ENUM_DEFLIST - /* this determines event mask length which must match - * minimum length check in device firmware so it is - * hard-coded here. - */ - BRCMF_E_LAST = 139 }; #undef BRCMF_ENUM_DEF -#define BRCMF_EVENTING_MASK_LEN DIV_ROUND_UP(BRCMF_E_LAST, 8) - /* flags field values in struct brcmf_event_msg */ #define BRCMF_EVENT_MSG_LINK 0x01 #define BRCMF_EVENT_MSG_FLUSHTXQ 0x02 @@ -211,7 +201,7 @@ enum brcmf_fweh_event_code { */ #define BRCM_OUI "\x00\x10\x18" #define BCMILCP_BCM_SUBTYPE_EVENT 1 - +#define BCMILCP_SUBTYPE_VENDOR_LONG 32769 /** * struct brcm_ethhdr - broadcom specific ether header. @@ -266,7 +256,7 @@ struct brcmf_event { * @status: status information. * @reason: reason code. * @auth_type: authentication type. - * @datalen: lenght of event data buffer. + * @datalen: length of event data buffer. * @addr: ether address. * @ifname: interface name. * @ifidx: interface index. @@ -299,27 +289,66 @@ typedef int (*brcmf_fweh_handler_t)(struct brcmf_if *ifp, void *data); /** + * struct brcmf_fweh_event_map_item - fweh event and firmware event pair. + * + * @code: fweh event code as used by higher layers. + * @fwevt_code: firmware event code as used by firmware. + * + * This mapping is needed when a functionally identical event has a + * different numerical definition between vendors. When such mapping + * is needed the higher layer event code should not collide with the + * firmware event. + */ +struct brcmf_fweh_event_map_item { + enum brcmf_fweh_event_code code; + u32 fwevt_code; +}; + +/** + * struct brcmf_fweh_event_map - mapping between firmware event and fweh event. + * + * @n_items: number of mapping items. + * @items: array of fweh event and firmware event pairs. + */ +struct brcmf_fweh_event_map { + u32 n_items; + const struct brcmf_fweh_event_map_item items[] __counted_by(n_items); +}; + +/** * struct brcmf_fweh_info - firmware event handling information. * * @p2pdev_setup_ongoing: P2P device creation in progress. * @event_work: event worker. * @evt_q_lock: lock for event queue protection. * @event_q: event queue. - * @evt_handler: registered event handlers. + * @event_mask_len: length of @event_mask used to enable firmware events. + * @event_mask: byte array used in 'event_msgs' iovar command. + * @event_map: mapping between fweh event and firmware event which + * may be provided by vendor-specific module for events that need + * mapping. + * @num_event_codes: number of firmware events supported by firmware which + * does a minimum length check for the @event_mask. This value is to + * be provided by vendor-specific module determining @event_mask_len + * and consequently the allocation size for @event_mask. + * @evt_handler: event handler registry indexed by firmware event code. */ struct brcmf_fweh_info { + struct brcmf_pub *drvr; bool p2pdev_setup_ongoing; struct work_struct event_work; spinlock_t evt_q_lock; struct list_head event_q; - int (*evt_handler[BRCMF_E_LAST])(struct brcmf_if *ifp, - const struct brcmf_event_msg *evtmsg, - void *data); + uint event_mask_len; + u8 *event_mask; + const struct brcmf_fweh_event_map *event_map; + uint num_event_codes; + brcmf_fweh_handler_t evt_handler[] __counted_by(num_event_codes); }; const char *brcmf_fweh_event_name(enum brcmf_fweh_event_code code); -void brcmf_fweh_attach(struct brcmf_pub *drvr); +int brcmf_fweh_attach(struct brcmf_pub *drvr); void brcmf_fweh_detach(struct brcmf_pub *drvr); int brcmf_fweh_register(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code, int (*handler)(struct brcmf_if *ifp, @@ -330,14 +359,15 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr, int brcmf_fweh_activate_events(struct brcmf_if *ifp); void brcmf_fweh_process_event(struct brcmf_pub *drvr, struct brcmf_event *event_packet, - u32 packet_len); + u32 packet_len, gfp_t gfp); void brcmf_fweh_p2pdev_setup(struct brcmf_if *ifp, bool ongoing); static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr, - struct sk_buff *skb) + struct sk_buff *skb, u16 stype, + gfp_t gfp) { struct brcmf_event *event_packet; - u16 usr_stype; + u16 subtype, usr_stype; /* only process events when protocol matches */ if (skb->protocol != cpu_to_be16(ETH_P_LINK_CTL)) @@ -346,8 +376,16 @@ static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr, if ((skb->len + ETH_HLEN) < sizeof(*event_packet)) return; - /* check for BRCM oui match */ event_packet = (struct brcmf_event *)skb_mac_header(skb); + + /* check subtype if needed */ + if (unlikely(stype)) { + subtype = get_unaligned_be16(&event_packet->hdr.subtype); + if (subtype != stype) + return; + } + + /* check for BRCM oui match */ if (memcmp(BRCM_OUI, &event_packet->hdr.oui[0], sizeof(event_packet->hdr.oui))) return; @@ -357,7 +395,7 @@ static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr, if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT) return; - brcmf_fweh_process_event(drvr, event_packet, skb->len + ETH_HLEN); + brcmf_fweh_process_event(drvr, event_packet, skb->len + ETH_HLEN, gfp); } #endif /* FWEH_H_ */ |