/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
*
* 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 COMMON_H
#define COMMON_H
#include <linux/netdevice.h>
#define ATH6KL_MAX_IE 256
extern int ath6kl_printk(const char *level, const char *fmt, ...);
#define A_CACHE_LINE_PAD 128
/*
* Reflects the version of binary interface exposed by ATH6KL target
* firmware. Needs to be incremented by 1 for any change in the firmware
* that requires upgrade of the driver on the host side for the change to
* work correctly
*/
#define ATH6KL_ABI_VERSION 1
#define SIGNAL_QUALITY_METRICS_NUM_MAX 2
enum {
SIGNAL_QUALITY_METRICS_SNR = 0,
SIGNAL_QUALITY_METRICS_RSSI,
SIGNAL_QUALITY_METRICS_ALL,
};
/*
* Data Path
*/
#define WMI_MAX_TX_DATA_FRAME_LENGTH \
(1500 + sizeof(struct wmi_data_hdr) + \
sizeof(struct ethhdr) + \
sizeof(struct ath6kl_llc_snap_hdr))
/* An AMSDU frame */ /* The MAX AMSDU length of AR6003 is 3839 */
#define WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH \
(3840 + sizeof(struct wmi_data_hdr) + \
sizeof(struct ethhdr) + \
sizeof(struct ath6kl_llc_snap_hdr))
#define EPPING_ALIGNMENT_PAD \
(((sizeof(struct htc_frame_hdr) + 3) & (~0x3)) \
- sizeof(struct htc_frame_hdr))
struct ath6kl_llc_snap_hdr {
u8 dsap;
u8 ssap;
u8 cntl;
u8 org_code[3];
__be16 eth_type;
} __packed;
enum crypto_type {
NONE_CRYPT = 0x01,
WEP_CRYPT = 0x02,
TKIP_CRYPT = 0x04,
AES_CRYPT = 0x08,
};
#define ATH6KL_NODE_HASHSIZE 32
/* simple hash is enough for variation of macaddr */
#define ATH6KL_NODE_HASH(addr) \
(((const u8 *)(addr))[ETH_ALEN - 1] % \
ATH6KL_NODE_HASHSIZE)
/*
* Table of ath6kl_node instances. Each ieee80211com
* has at least one for holding the scan candidates.
* When operating as an access point or in ibss mode there
* is a second table for associated stations or neighbors.
*/
struct ath6kl_node_table {
spinlock_t nt_nodelock; /* on node table */
struct bss *nt_node_first; /* information of all nodes */
struct bss *nt_node_last; /* information of all nodes */
struct bss *nt_hash[ATH6KL_NODE_HASHSIZE];
const char *nt_name; /* for debugging */
u32 nt_node_age; /* node aging time */
};
#define WLAN_NODE_INACT_TIMEOUT_MSEC 120000
#define WLAN_NODE_INACT_CNT 4
struct ath6kl_common_ie {
u16 ie_chan;
u8 *ie_tstamp;
u8 *ie_ssid;
u8 *ie_rates;
u8 *ie_xrates;
u8 *ie_country;
u8 *ie_wpa;
u8 *ie_rsn;
u8 *ie_wmm;
u8 *ie_ath;
u16 ie_capInfo;
u16 ie_beaconInt;
u8 *ie_tim;
u8 *ie_chswitch;
u8 ie_erp;
u8 *ie_wsc;
u8 *ie_htcap;
u8 *ie_htop;
};
struct bss {
u8 ni_macaddr[ETH_ALEN];
u8 ni_snr;
s16 ni_rssi;
struct bss *ni_list_next;
struct bss *ni_list_prev;
struct bss *ni_hash_next;
struct bss *ni_hash_prev;
struct ath6kl_common_ie ni_cie;
u8 *ni_buf;
u16 ni_framelen;
struct ath6kl_node_table *ni_table;
u32 ni_refcnt;
u32 ni_tstamp;
u32 ni_actcnt;
};
struct htc_endpoint_credit_dist;
struct ath6kl;
enum htc_credit_dist_reason;
struct htc_credit_state_info;
struct bss *wlan_node_alloc(int wh_size);
void wlan_node_free(struct bss *ni);
void wlan_setup_node(struct ath6kl_node_table *nt, struct bss *ni,
const u8 *mac_addr);
struct bss *wlan_find_node(struct ath6kl_node_table *nt,
const u8 *mac_addr);
void wlan_node_reclaim(struct ath6kl_node_table *nt, struct bss *ni);
void wlan_free_allnodes(struct ath6kl_node_table *nt);
void wlan_iterate_nodes(struct ath6kl_node_table *nt, void *arg);
void wlan_node_table_init(struct ath6kl_node_table *nt);
void wlan_node_table_cleanup(struct ath6kl_node_table *nt);
void wlan_refresh_inactive_nodes(struct ath6kl *ar);
struct bss *wlan_find_ssid_node(struct ath6kl_node_table *nt, u8 *ssid,
u32 ssid_len, bool is_wpa2, bool match_ssid);
void wlan_node_return(struct ath6kl_node_table *nt, struct bss *ni);
int ath6k_setup_credit_dist(void *htc_handle,
struct htc_credit_state_info *cred_info);
void ath6k_credit_distribute(struct htc_credit_state_info *cred_inf,
struct list_head *epdist_list,
enum htc_credit_dist_reason reason);
void ath6k_credit_init(struct htc_credit_state_info *cred_inf,
struct list_head *ep_list,
int tot_credits);
void ath6k_seek_credits(struct htc_credit_state_info *cred_inf,
struct htc_endpoint_credit_dist *ep_dist);
struct ath6kl *ath6kl_core_alloc(struct device *sdev);
int ath6kl_core_init(struct ath6kl *ar);
int ath6kl_unavail_ev(struct ath6kl *ar);
struct sk_buff *ath6kl_buf_alloc(int size);
#endif /* COMMON_H */
