diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/rc.h')
| -rw-r--r-- | drivers/net/wireless/ath9k/rc.h | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/drivers/net/wireless/ath9k/rc.h b/drivers/net/wireless/ath9k/rc.h deleted file mode 100644 index 199a3ce57d64..000000000000 --- a/drivers/net/wireless/ath9k/rc.h +++ /dev/null @@ -1,220 +0,0 @@ -/* - * Copyright (c) 2004 Sam Leffler, Errno Consulting - * Copyright (c) 2004 Video54 Technologies, Inc. - * Copyright (c) 2008-2009 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 RC_H -#define RC_H - -struct ath_softc; - -#define ATH_RATE_MAX 30 -#define RATE_TABLE_SIZE 64 -#define MAX_TX_RATE_PHY 48 -#define WLAN_CTRL_FRAME_SIZE (2+2+6+4) - -/* VALID_ALL - valid for 20/40/Legacy, - * VALID - Legacy only, - * VALID_20 - HT 20 only, - * VALID_40 - HT 40 only */ - -#define INVALID 0x0 -#define VALID 0x1 -#define VALID_20 0x2 -#define VALID_40 0x4 -#define VALID_2040 (VALID_20|VALID_40) -#define VALID_ALL (VALID_2040|VALID) - -enum { - WLAN_RC_PHY_OFDM, - WLAN_RC_PHY_CCK, - WLAN_RC_PHY_HT_20_SS, - WLAN_RC_PHY_HT_20_DS, - WLAN_RC_PHY_HT_40_SS, - WLAN_RC_PHY_HT_40_DS, - WLAN_RC_PHY_HT_20_SS_HGI, - WLAN_RC_PHY_HT_20_DS_HGI, - WLAN_RC_PHY_HT_40_SS_HGI, - WLAN_RC_PHY_HT_40_DS_HGI, - WLAN_RC_PHY_MAX -}; - -#define WLAN_RC_PHY_DS(_phy) ((_phy == WLAN_RC_PHY_HT_20_DS) \ - || (_phy == WLAN_RC_PHY_HT_40_DS) \ - || (_phy == WLAN_RC_PHY_HT_20_DS_HGI) \ - || (_phy == WLAN_RC_PHY_HT_40_DS_HGI)) -#define WLAN_RC_PHY_40(_phy) ((_phy == WLAN_RC_PHY_HT_40_SS) \ - || (_phy == WLAN_RC_PHY_HT_40_DS) \ - || (_phy == WLAN_RC_PHY_HT_40_SS_HGI) \ - || (_phy == WLAN_RC_PHY_HT_40_DS_HGI)) -#define WLAN_RC_PHY_SGI(_phy) ((_phy == WLAN_RC_PHY_HT_20_SS_HGI) \ - || (_phy == WLAN_RC_PHY_HT_20_DS_HGI) \ - || (_phy == WLAN_RC_PHY_HT_40_SS_HGI) \ - || (_phy == WLAN_RC_PHY_HT_40_DS_HGI)) - -#define WLAN_RC_PHY_HT(_phy) (_phy >= WLAN_RC_PHY_HT_20_SS) - -#define WLAN_RC_CAP_MODE(capflag) (((capflag & WLAN_RC_HT_FLAG) ? \ - (capflag & WLAN_RC_40_FLAG) ? VALID_40 : VALID_20 : VALID)) - -/* Return TRUE if flag supports HT20 && client supports HT20 or - * return TRUE if flag supports HT40 && client supports HT40. - * This is used becos some rates overlap between HT20/HT40. - */ -#define WLAN_RC_PHY_HT_VALID(flag, capflag) \ - (((flag & VALID_20) && !(capflag & WLAN_RC_40_FLAG)) || \ - ((flag & VALID_40) && (capflag & WLAN_RC_40_FLAG))) - -#define WLAN_RC_DS_FLAG (0x01) -#define WLAN_RC_40_FLAG (0x02) -#define WLAN_RC_SGI_FLAG (0x04) -#define WLAN_RC_HT_FLAG (0x08) - -/** - * struct ath_rate_table - Rate Control table - * @valid: valid for use in rate control - * @valid_single_stream: valid for use in rate control for - * single stream operation - * @phy: CCK/OFDM - * @ratekbps: rate in Kbits per second - * @user_ratekbps: user rate in Kbits per second - * @ratecode: rate that goes into HW descriptors - * @short_preamble: Mask for enabling short preamble in ratecode for CCK - * @dot11rate: value that goes into supported - * rates info element of MLME - * @ctrl_rate: Index of next lower basic rate, used for duration computation - * @max_4ms_framelen: maximum frame length(bytes) for tx duration - * @probe_interval: interval for rate control to probe for other rates - * @rssi_reduce_interval: interval for rate control to reduce rssi - * @initial_ratemax: initial ratemax value - */ -struct ath_rate_table { - int rate_cnt; - struct { - int valid; - int valid_single_stream; - u8 phy; - u32 ratekbps; - u32 user_ratekbps; - u8 ratecode; - u8 short_preamble; - u8 dot11rate; - u8 ctrl_rate; - int8_t rssi_ack_validmin; - int8_t rssi_ack_deltamin; - u8 base_index; - u8 cw40index; - u8 sgi_index; - u8 ht_index; - u32 max_4ms_framelen; - } info[RATE_TABLE_SIZE]; - u32 probe_interval; - u32 rssi_reduce_interval; - u8 initial_ratemax; -}; - -struct ath_tx_ratectrl_state { - int8_t rssi_thres; /* required rssi for this rate (dB) */ - u8 per; /* recent estimate of packet error rate (%) */ -}; - -struct ath_rateset { - u8 rs_nrates; - u8 rs_rates[ATH_RATE_MAX]; -}; - -/** - * struct ath_rate_priv - Rate Control priv data - * @state: RC state - * @rssi_last: last ACK rssi - * @rssi_last_lookup: last ACK rssi used for lookup - * @rssi_last_prev: previous last ACK rssi - * @rssi_last_prev2: 2nd previous last ACK rssi - * @rssi_sum_cnt: count of rssi_sum for averaging - * @rssi_sum_rate: rate that we are averaging - * @rssi_sum: running sum of rssi for averaging - * @probe_rate: rate we are probing at - * @rssi_time: msec timestamp for last ack rssi - * @rssi_down_time: msec timestamp for last down step - * @probe_time: msec timestamp for last probe - * @hw_maxretry_pktcnt: num of packets since we got HW max retry error - * @max_valid_rate: maximum number of valid rate - * @per_down_time: msec timestamp for last PER down step - * @valid_phy_ratecnt: valid rate count - * @rate_max_phy: phy index for the max rate - * @probe_interval: interval for ratectrl to probe for other rates - * @prev_data_rix: rate idx of last data frame - * @ht_cap: HT capabilities - * @single_stream: When TRUE, only single TX stream possible - * @neg_rates: Negotatied rates - * @neg_ht_rates: Negotiated HT rates - */ -struct ath_rate_priv { - int8_t rssi_last; - int8_t rssi_last_lookup; - int8_t rssi_last_prev; - int8_t rssi_last_prev2; - int32_t rssi_sum_cnt; - int32_t rssi_sum_rate; - int32_t rssi_sum; - u8 rate_table_size; - u8 probe_rate; - u8 hw_maxretry_pktcnt; - u8 max_valid_rate; - u8 valid_rate_index[RATE_TABLE_SIZE]; - u8 ht_cap; - u8 single_stream; - u8 valid_phy_ratecnt[WLAN_RC_PHY_MAX]; - u8 valid_phy_rateidx[WLAN_RC_PHY_MAX][RATE_TABLE_SIZE]; - u8 rc_phy_mode; - u8 rate_max_phy; - u32 rssi_time; - u32 rssi_down_time; - u32 probe_time; - u32 per_down_time; - u32 probe_interval; - u32 prev_data_rix; - u32 tx_triglevel_max; - struct ath_tx_ratectrl_state state[RATE_TABLE_SIZE]; - struct ath_rateset neg_rates; - struct ath_rateset neg_ht_rates; - struct ath_rate_softc *asc; -}; - -enum ath9k_internal_frame_type { - ATH9K_NOT_INTERNAL, - ATH9K_INT_PAUSE, - ATH9K_INT_UNPAUSE -}; - -struct ath_tx_info_priv { - struct ath_wiphy *aphy; - struct ath_tx_status tx; - int n_frames; - int n_bad_frames; - bool update_rc; - enum ath9k_internal_frame_type frame_type; -}; - -#define ATH_TX_INFO_PRIV(tx_info) \ - ((struct ath_tx_info_priv *)((tx_info)->rate_driver_data[0])) - -void ath_rate_attach(struct ath_softc *sc); -u8 ath_rate_findrateix(struct ath_softc *sc, u8 dot11_rate); -int ath_rate_control_register(void); -void ath_rate_control_unregister(void); - -#endif /* RC_H */ |