diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/common.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/common.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/common.h b/drivers/net/wireless/ath/ath6kl/common.h new file mode 100644 index 00000000000..0a3a1d80d0a --- /dev/null +++ b/drivers/net/wireless/ath/ath6kl/common.h @@ -0,0 +1,183 @@ +/* + * 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 { + void *nt_wmi; /* back reference */ + 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 (*f) (void *arg, struct bss *), + void *arg); + +void wlan_node_table_init(void *wmip, struct ath6kl_node_table *nt); +void wlan_node_table_cleanup(struct ath6kl_node_table *nt); + +void wlan_refresh_inactive_nodes(struct ath6kl_node_table *nt); + +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 */ |