drivers/net/wireless/ath/ath6kl/common.h

   1 /*
   2  * Copyright (c) 2010-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef COMMON_H
  18 #define COMMON_H
  19
  20 #include <linux/netdevice.h>
  21
  22 #define ATH6KL_MAX_IE                   256
  23
  24 extern int ath6kl_printk(const char *level, const char *fmt, ...);
  25
  26 #define A_CACHE_LINE_PAD            128
  27
  28 /*
  29  * Reflects the version of binary interface exposed by ATH6KL target
  30  * firmware. Needs to be incremented by 1 for any change in the firmware
  31  * that requires upgrade of the driver on the host side for the change to
  32  * work correctly
  33  */
  34 #define ATH6KL_ABI_VERSION        1
  35
  36 #define SIGNAL_QUALITY_METRICS_NUM_MAX    2
  37
  38 enum {
  39         SIGNAL_QUALITY_METRICS_SNR = 0,
  40         SIGNAL_QUALITY_METRICS_RSSI,
  41         SIGNAL_QUALITY_METRICS_ALL,
  42 };
  43
  44 /*
  45  * Data Path
  46  */
  47
  48 #define WMI_MAX_TX_DATA_FRAME_LENGTH          \
  49         (1500 + sizeof(struct wmi_data_hdr) + \
  50          sizeof(struct ethhdr) +      \
  51          sizeof(struct ath6kl_llc_snap_hdr))
  52
  53 /* An AMSDU frame */ /* The MAX AMSDU length of AR6003 is 3839 */
  54 #define WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH    \
  55         (3840 + sizeof(struct wmi_data_hdr) + \
  56          sizeof(struct ethhdr) +      \
  57          sizeof(struct ath6kl_llc_snap_hdr))
  58
  59 #define EPPING_ALIGNMENT_PAD                           \
  60         (((sizeof(struct htc_frame_hdr) + 3) & (~0x3)) \
  61          - sizeof(struct htc_frame_hdr))
  62
  63 struct ath6kl_llc_snap_hdr {
  64         u8 dsap;
  65         u8 ssap;
  66         u8 cntl;
  67         u8 org_code[3];
  68         __be16 eth_type;
  69 } __packed;
  70
  71 enum crypto_type {
  72         NONE_CRYPT          = 0x01,
  73         WEP_CRYPT           = 0x02,
  74         TKIP_CRYPT          = 0x04,
  75         AES_CRYPT           = 0x08,
  76 };
  77
  78 struct htc_endpoint_credit_dist;
  79 struct ath6kl;
  80 enum htc_credit_dist_reason;
  81 struct htc_credit_state_info;
  82
  83 int ath6k_setup_credit_dist(void *htc_handle,
  84                             struct htc_credit_state_info *cred_info);
  85 void ath6k_credit_distribute(struct htc_credit_state_info *cred_inf,
  86                              struct list_head *epdist_list,
  87                              enum htc_credit_dist_reason reason);
  88 void ath6k_credit_init(struct htc_credit_state_info *cred_inf,
  89                        struct list_head *ep_list,
  90                        int tot_credits);
  91 void ath6k_seek_credits(struct htc_credit_state_info *cred_inf,
  92                         struct htc_endpoint_credit_dist *ep_dist);
  93 struct ath6kl *ath6kl_core_alloc(struct device *sdev);
  94 int ath6kl_core_init(struct ath6kl *ar);
  95 int ath6kl_unavail_ev(struct ath6kl *ar);
  96 struct sk_buff *ath6kl_buf_alloc(int size);
  97 #endif /* COMMON_H */