1bdcd8170SKalle Valo /* 2bdcd8170SKalle Valo * Copyright (c) 2010-2011 Atheros Communications Inc. 3bdcd8170SKalle Valo * 4bdcd8170SKalle Valo * Permission to use, copy, modify, and/or distribute this software for any 5bdcd8170SKalle Valo * purpose with or without fee is hereby granted, provided that the above 6bdcd8170SKalle Valo * copyright notice and this permission notice appear in all copies. 7bdcd8170SKalle Valo * 8bdcd8170SKalle Valo * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9bdcd8170SKalle Valo * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10bdcd8170SKalle Valo * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11bdcd8170SKalle Valo * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12bdcd8170SKalle Valo * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13bdcd8170SKalle Valo * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14bdcd8170SKalle Valo * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15bdcd8170SKalle Valo */ 16bdcd8170SKalle Valo 17bdcd8170SKalle Valo #ifndef COMMON_H 18bdcd8170SKalle Valo #define COMMON_H 19bdcd8170SKalle Valo 20bdcd8170SKalle Valo #include <linux/netdevice.h> 21bdcd8170SKalle Valo 22bdcd8170SKalle Valo #define ATH6KL_MAX_IE 256 23bdcd8170SKalle Valo 24bdcd8170SKalle Valo extern int ath6kl_printk(const char *level, const char *fmt, ...); 25bdcd8170SKalle Valo 26bdcd8170SKalle Valo #define A_CACHE_LINE_PAD 128 27bdcd8170SKalle Valo 28bdcd8170SKalle Valo /* 29bdcd8170SKalle Valo * Reflects the version of binary interface exposed by ATH6KL target 30bdcd8170SKalle Valo * firmware. Needs to be incremented by 1 for any change in the firmware 31bdcd8170SKalle Valo * that requires upgrade of the driver on the host side for the change to 32bdcd8170SKalle Valo * work correctly 33bdcd8170SKalle Valo */ 34bdcd8170SKalle Valo #define ATH6KL_ABI_VERSION 1 35bdcd8170SKalle Valo 36bdcd8170SKalle Valo #define SIGNAL_QUALITY_METRICS_NUM_MAX 2 37bdcd8170SKalle Valo 38bdcd8170SKalle Valo enum { 39bdcd8170SKalle Valo SIGNAL_QUALITY_METRICS_SNR = 0, 40bdcd8170SKalle Valo SIGNAL_QUALITY_METRICS_RSSI, 41bdcd8170SKalle Valo SIGNAL_QUALITY_METRICS_ALL, 42bdcd8170SKalle Valo }; 43bdcd8170SKalle Valo 44bdcd8170SKalle Valo /* 45bdcd8170SKalle Valo * Data Path 46bdcd8170SKalle Valo */ 47bdcd8170SKalle Valo 48bdcd8170SKalle Valo #define WMI_MAX_TX_DATA_FRAME_LENGTH \ 49bdcd8170SKalle Valo (1500 + sizeof(struct wmi_data_hdr) + \ 50bdcd8170SKalle Valo sizeof(struct ethhdr) + \ 51bdcd8170SKalle Valo sizeof(struct ath6kl_llc_snap_hdr)) 52bdcd8170SKalle Valo 53bdcd8170SKalle Valo /* An AMSDU frame */ /* The MAX AMSDU length of AR6003 is 3839 */ 54bdcd8170SKalle Valo #define WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH \ 55bdcd8170SKalle Valo (3840 + sizeof(struct wmi_data_hdr) + \ 56bdcd8170SKalle Valo sizeof(struct ethhdr) + \ 57bdcd8170SKalle Valo sizeof(struct ath6kl_llc_snap_hdr)) 58bdcd8170SKalle Valo 59bdcd8170SKalle Valo #define EPPING_ALIGNMENT_PAD \ 60bdcd8170SKalle Valo (((sizeof(struct htc_frame_hdr) + 3) & (~0x3)) \ 61bdcd8170SKalle Valo - sizeof(struct htc_frame_hdr)) 62bdcd8170SKalle Valo 63bdcd8170SKalle Valo struct ath6kl_llc_snap_hdr { 64bdcd8170SKalle Valo u8 dsap; 65bdcd8170SKalle Valo u8 ssap; 66bdcd8170SKalle Valo u8 cntl; 67bdcd8170SKalle Valo u8 org_code[3]; 68bdcd8170SKalle Valo __be16 eth_type; 69bdcd8170SKalle Valo } __packed; 70bdcd8170SKalle Valo 71bdcd8170SKalle Valo enum crypto_type { 72bdcd8170SKalle Valo NONE_CRYPT = 0x01, 73bdcd8170SKalle Valo WEP_CRYPT = 0x02, 74bdcd8170SKalle Valo TKIP_CRYPT = 0x04, 75bdcd8170SKalle Valo AES_CRYPT = 0x08, 76bdcd8170SKalle Valo }; 77bdcd8170SKalle Valo 78bdcd8170SKalle Valo #define ATH6KL_NODE_HASHSIZE 32 79bdcd8170SKalle Valo /* simple hash is enough for variation of macaddr */ 80bdcd8170SKalle Valo #define ATH6KL_NODE_HASH(addr) \ 81bdcd8170SKalle Valo (((const u8 *)(addr))[ETH_ALEN - 1] % \ 82bdcd8170SKalle Valo ATH6KL_NODE_HASHSIZE) 83bdcd8170SKalle Valo 84bdcd8170SKalle Valo /* 85bdcd8170SKalle Valo * Table of ath6kl_node instances. Each ieee80211com 86bdcd8170SKalle Valo * has at least one for holding the scan candidates. 87bdcd8170SKalle Valo * When operating as an access point or in ibss mode there 88bdcd8170SKalle Valo * is a second table for associated stations or neighbors. 89bdcd8170SKalle Valo */ 90bdcd8170SKalle Valo struct ath6kl_node_table { 91bdcd8170SKalle Valo void *nt_wmi; /* back reference */ 92bdcd8170SKalle Valo spinlock_t nt_nodelock; /* on node table */ 93bdcd8170SKalle Valo struct bss *nt_node_first; /* information of all nodes */ 94bdcd8170SKalle Valo struct bss *nt_node_last; /* information of all nodes */ 95bdcd8170SKalle Valo struct bss *nt_hash[ATH6KL_NODE_HASHSIZE]; 96bdcd8170SKalle Valo const char *nt_name; /* for debugging */ 97bdcd8170SKalle Valo u32 nt_node_age; /* node aging time */ 98bdcd8170SKalle Valo }; 99bdcd8170SKalle Valo 100bdcd8170SKalle Valo #define WLAN_NODE_INACT_TIMEOUT_MSEC 120000 101bdcd8170SKalle Valo #define WLAN_NODE_INACT_CNT 4 102bdcd8170SKalle Valo 103bdcd8170SKalle Valo struct ath6kl_common_ie { 104bdcd8170SKalle Valo u16 ie_chan; 105bdcd8170SKalle Valo u8 *ie_tstamp; 106bdcd8170SKalle Valo u8 *ie_ssid; 107bdcd8170SKalle Valo u8 *ie_rates; 108bdcd8170SKalle Valo u8 *ie_xrates; 109bdcd8170SKalle Valo u8 *ie_country; 110bdcd8170SKalle Valo u8 *ie_wpa; 111bdcd8170SKalle Valo u8 *ie_rsn; 112bdcd8170SKalle Valo u8 *ie_wmm; 113bdcd8170SKalle Valo u8 *ie_ath; 114bdcd8170SKalle Valo u16 ie_capInfo; 115bdcd8170SKalle Valo u16 ie_beaconInt; 116bdcd8170SKalle Valo u8 *ie_tim; 117bdcd8170SKalle Valo u8 *ie_chswitch; 118bdcd8170SKalle Valo u8 ie_erp; 119bdcd8170SKalle Valo u8 *ie_wsc; 120bdcd8170SKalle Valo u8 *ie_htcap; 121bdcd8170SKalle Valo u8 *ie_htop; 122bdcd8170SKalle Valo }; 123bdcd8170SKalle Valo 124bdcd8170SKalle Valo struct bss { 125bdcd8170SKalle Valo u8 ni_macaddr[ETH_ALEN]; 126bdcd8170SKalle Valo u8 ni_snr; 127bdcd8170SKalle Valo s16 ni_rssi; 128bdcd8170SKalle Valo struct bss *ni_list_next; 129bdcd8170SKalle Valo struct bss *ni_list_prev; 130bdcd8170SKalle Valo struct bss *ni_hash_next; 131bdcd8170SKalle Valo struct bss *ni_hash_prev; 132bdcd8170SKalle Valo struct ath6kl_common_ie ni_cie; 133bdcd8170SKalle Valo u8 *ni_buf; 134bdcd8170SKalle Valo u16 ni_framelen; 135bdcd8170SKalle Valo struct ath6kl_node_table *ni_table; 136bdcd8170SKalle Valo u32 ni_refcnt; 137bdcd8170SKalle Valo 138bdcd8170SKalle Valo u32 ni_tstamp; 139bdcd8170SKalle Valo u32 ni_actcnt; 140bdcd8170SKalle Valo }; 141bdcd8170SKalle Valo 142bdcd8170SKalle Valo struct htc_endpoint_credit_dist; 143bdcd8170SKalle Valo struct ath6kl; 144bdcd8170SKalle Valo enum htc_credit_dist_reason; 145bdcd8170SKalle Valo struct htc_credit_state_info; 146bdcd8170SKalle Valo 147bdcd8170SKalle Valo struct bss *wlan_node_alloc(int wh_size); 148bdcd8170SKalle Valo void wlan_node_free(struct bss *ni); 149bdcd8170SKalle Valo void wlan_setup_node(struct ath6kl_node_table *nt, struct bss *ni, 150bdcd8170SKalle Valo const u8 *mac_addr); 151bdcd8170SKalle Valo struct bss *wlan_find_node(struct ath6kl_node_table *nt, 152bdcd8170SKalle Valo const u8 *mac_addr); 153bdcd8170SKalle Valo void wlan_node_reclaim(struct ath6kl_node_table *nt, struct bss *ni); 154bdcd8170SKalle Valo void wlan_free_allnodes(struct ath6kl_node_table *nt); 155bdcd8170SKalle Valo void wlan_iterate_nodes(struct ath6kl_node_table *nt, 156bdcd8170SKalle Valo void (*f) (void *arg, struct bss *), 157bdcd8170SKalle Valo void *arg); 158bdcd8170SKalle Valo 159bdcd8170SKalle Valo void wlan_node_table_init(void *wmip, struct ath6kl_node_table *nt); 160bdcd8170SKalle Valo void wlan_node_table_cleanup(struct ath6kl_node_table *nt); 161bdcd8170SKalle Valo 162bdcd8170SKalle Valo void wlan_refresh_inactive_nodes(struct ath6kl_node_table *nt); 163bdcd8170SKalle Valo 164bdcd8170SKalle Valo struct bss *wlan_find_ssid_node(struct ath6kl_node_table *nt, u8 *ssid, 165bdcd8170SKalle Valo u32 ssid_len, bool is_wpa2, bool match_ssid); 166bdcd8170SKalle Valo 167bdcd8170SKalle Valo void wlan_node_return(struct ath6kl_node_table *nt, struct bss *ni); 168bdcd8170SKalle Valo 169bdcd8170SKalle Valo int ath6k_setup_credit_dist(void *htc_handle, 170bdcd8170SKalle Valo struct htc_credit_state_info *cred_info); 171bdcd8170SKalle Valo void ath6k_credit_distribute(struct htc_credit_state_info *cred_inf, 172bdcd8170SKalle Valo struct list_head *epdist_list, 173bdcd8170SKalle Valo enum htc_credit_dist_reason reason); 174bdcd8170SKalle Valo void ath6k_credit_init(struct htc_credit_state_info *cred_inf, 175bdcd8170SKalle Valo struct list_head *ep_list, 176bdcd8170SKalle Valo int tot_credits); 177bdcd8170SKalle Valo void ath6k_seek_credits(struct htc_credit_state_info *cred_inf, 178bdcd8170SKalle Valo struct htc_endpoint_credit_dist *ep_dist); 179bdcd8170SKalle Valo struct ath6kl *ath6kl_core_alloc(struct device *sdev); 180bdcd8170SKalle Valo int ath6kl_core_init(struct ath6kl *ar); 181bdcd8170SKalle Valo int ath6kl_unavail_ev(struct ath6kl *ar); 182bdcd8170SKalle Valo struct sk_buff *ath6kl_buf_alloc(int size); 183bdcd8170SKalle Valo #endif /* COMMON_H */ 184