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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.
*/
/****************
* Common types *
*/
#ifndef _BRCMF_H_
#define _BRCMF_H_
#include "fweh.h"
#define TOE_TX_CSUM_OL 0x00000001
#define TOE_RX_CSUM_OL 0x00000002
/* For supporting multiple interfaces */
#define BRCMF_MAX_IFS 16
#define DOT11_MAX_DEFAULT_KEYS 4
/* Small, medium and maximum buffer size for dcmd
*/
#define BRCMF_DCMD_SMLEN 256
#define BRCMF_DCMD_MEDLEN 1536
#define BRCMF_DCMD_MAXLEN 8192
/* IOCTL from host to device are limited in lenght. A device can only handle
* ethernet frame size. This limitation is to be applied by protocol layer.
*/
#define BRCMF_TX_IOCTL_MAX_MSG_SIZE (ETH_FRAME_LEN+ETH_FCS_LEN)
#define BRCMF_AMPDU_RX_REORDER_MAXFLOWS 256
/* Length of firmware version string stored for
* ethtool driver info which uses 32 bytes as well.
*/
#define BRCMF_DRIVER_FIRMWARE_VERSION_LEN 32
/* Bus independent dongle command */
struct brcmf_dcmd {
uint cmd; /* common dongle cmd definition */
void *buf; /* pointer to user buffer */
uint len; /* length of user buffer */
u8 set; /* get or set request (optional) */
uint used; /* bytes read or written (optional) */
uint needed; /* bytes needed (optional) */
};
/**
* struct brcmf_ampdu_rx_reorder - AMPDU receive reorder info
*
* @pktslots: dynamic allocated array for ordering AMPDU packets.
* @flow_id: AMPDU flow identifier.
* @cur_idx: last AMPDU index from firmware.
* @exp_idx: expected next AMPDU index.
* @max_idx: maximum amount of packets per AMPDU.
* @pend_pkts: number of packets currently in @pktslots.
*/
struct brcmf_ampdu_rx_reorder {
struct sk_buff **pktslots;
u8 flow_id;
u8 cur_idx;
u8 exp_idx;
u8 max_idx;
u8 pend_pkts;
};
/* Forward decls for struct brcmf_pub (see below) */
struct brcmf_proto; /* device communication protocol info */
struct brcmf_cfg80211_dev; /* cfg80211 device info */
struct brcmf_fws_info; /* firmware signalling info */
/* Common structure for module and instance linkage */
struct brcmf_pub {
/* Linkage ponters */
struct brcmf_bus *bus_if;
struct brcmf_proto *proto;
struct brcmf_cfg80211_info *config;
/* Internal brcmf items */
uint hdrlen; /* Total BRCMF header length (proto + bus) */
uint rxsz; /* Rx buffer size bus module should use */
u8 wme_dp; /* wme discard priority */
/* Dongle media info */
char fwver[BRCMF_DRIVER_FIRMWARE_VERSION_LEN];
u8 mac[ETH_ALEN]; /* MAC address obtained from dongle */
/* Multicast data packets sent to dongle */
unsigned long tx_multicast;
struct brcmf_if *iflist[BRCMF_MAX_IFS];
struct mutex proto_block;
unsigned char proto_buf[BRCMF_DCMD_MAXLEN];
struct brcmf_fweh_info fweh;
struct brcmf_fws_info *fws;
struct brcmf_ampdu_rx_reorder
*reorder_flows[BRCMF_AMPDU_RX_REORDER_MAXFLOWS];
#ifdef DEBUG
struct dentry *dbgfs_dir;
#endif
};
/* forward declarations */
struct brcmf_cfg80211_vif;
struct brcmf_fws_mac_descriptor;
/**
* enum brcmf_netif_stop_reason - reason for stopping netif queue.
*
* @BRCMF_NETIF_STOP_REASON_FWS_FC:
* netif stopped due to firmware signalling flow control.
* @BRCMF_NETIF_STOP_REASON_BLOCK_BUS:
* netif stopped due to bus blocking.
*/
enum brcmf_netif_stop_reason {
BRCMF_NETIF_STOP_REASON_FWS_FC = 1,
BRCMF_NETIF_STOP_REASON_BLOCK_BUS = 2
};
/**
* struct brcmf_if - interface control information.
*
* @drvr: points to device related information.
* @vif: points to cfg80211 specific interface information.
* @ndev: associated network device.
* @stats: interface specific network statistics.
* @setmacaddr_work: worker object for setting mac address.
* @multicast_work: worker object for multicast provisioning.
* @fws_desc: interface specific firmware-signalling descriptor.
* @ifidx: interface index in device firmware.
* @bssidx: index of bss associated with this interface.
* @mac_addr: assigned mac address.
* @netif_stop: bitmap indicates reason why netif queues are stopped.
* @netif_stop_lock: spinlock for update netif_stop from multiple sources.
* @pend_8021x_cnt: tracks outstanding number of 802.1x frames.
* @pend_8021x_wait: used for signalling change in count.
*/
struct brcmf_if {
struct brcmf_pub *drvr;
struct brcmf_cfg80211_vif *vif;
struct net_device *ndev;
struct net_device_stats stats;
struct work_struct setmacaddr_work;
struct work_struct multicast_work;
struct brcmf_fws_mac_descriptor *fws_desc;
int ifidx;
s32 bssidx;
u8 mac_addr[ETH_ALEN];
u8 netif_stop;
spinlock_t netif_stop_lock;
atomic_t pend_8021x_cnt;
wait_queue_head_t pend_8021x_wait;
};
struct brcmf_skb_reorder_data {
u8 *reorder;
};
int brcmf_netdev_wait_pend8021x(struct net_device *ndev);
/* Return pointer to interface name */
char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
char *name, u8 *mac_addr);
void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
void brcmf_txflowblock_if(struct brcmf_if *ifp,
enum brcmf_netif_stop_reason reason, bool state);
u32 brcmf_get_chip_info(struct brcmf_if *ifp);
void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
bool success);
/* Sets dongle media info (drv_version, mac address). */
int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
#endif /* _BRCMF_H_ */
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