diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/rc.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/rc.c | 1756 |
1 files changed, 0 insertions, 1756 deletions
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c deleted file mode 100644 index 824ccbb8b7b8..000000000000 --- a/drivers/net/wireless/ath9k/rc.c +++ /dev/null @@ -1,1756 +0,0 @@ -/* - * Copyright (c) 2004 Video54 Technologies, Inc. - * Copyright (c) 2004-2009 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. - */ - -#include "ath9k.h" - -static struct ath_rate_table ar5416_11na_ratetable = { - 42, - { - { VALID, VALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, 12, - 0, 2, 1, 0, 0, 0, 0, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, - 0, 3, 1, 1, 1, 1, 1, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10000, 0x0a, 0x00, 24, - 2, 4, 2, 2, 2, 2, 2, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 13900, 0x0e, 0x00, 36, - 2, 6, 2, 3, 3, 3, 3, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17300, 0x09, 0x00, 48, - 4, 10, 3, 4, 4, 4, 4, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23000, 0x0d, 0x00, 72, - 4, 14, 3, 5, 5, 5, 5, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, - 4, 20, 3, 6, 6, 6, 6, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 29300, 0x0c, 0x00, 108, - 4, 23, 3, 7, 7, 7, 7, 0 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */ - 6400, 0x80, 0x00, 0, - 0, 2, 3, 8, 24, 8, 24, 3216 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */ - 12700, 0x81, 0x00, 1, - 2, 4, 3, 9, 25, 9, 25, 6434 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */ - 18800, 0x82, 0x00, 2, - 2, 6, 3, 10, 26, 10, 26, 9650 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */ - 25000, 0x83, 0x00, 3, - 4, 10, 3, 11, 27, 11, 27, 12868 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */ - 36700, 0x84, 0x00, 4, - 4, 14, 3, 12, 28, 12, 28, 19304 }, - { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */ - 48100, 0x85, 0x00, 5, - 4, 20, 3, 13, 29, 13, 29, 25740 }, - { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */ - 53500, 0x86, 0x00, 6, - 4, 23, 3, 14, 30, 14, 30, 28956 }, - { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */ - 59000, 0x87, 0x00, 7, - 4, 25, 3, 15, 31, 15, 32, 32180 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */ - 12700, 0x88, 0x00, - 8, 0, 2, 3, 16, 33, 16, 33, 6430 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */ - 24800, 0x89, 0x00, 9, - 2, 4, 3, 17, 34, 17, 34, 12860 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */ - 36600, 0x8a, 0x00, 10, - 2, 6, 3, 18, 35, 18, 35, 19300 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */ - 48100, 0x8b, 0x00, 11, - 4, 10, 3, 19, 36, 19, 36, 25736 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */ - 69500, 0x8c, 0x00, 12, - 4, 14, 3, 20, 37, 20, 37, 38600 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */ - 89500, 0x8d, 0x00, 13, - 4, 20, 3, 21, 38, 21, 38, 51472 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */ - 98900, 0x8e, 0x00, 14, - 4, 23, 3, 22, 39, 22, 39, 57890 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */ - 108300, 0x8f, 0x00, 15, - 4, 25, 3, 23, 40, 23, 41, 64320 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */ - 13200, 0x80, 0x00, 0, - 0, 2, 3, 8, 24, 24, 24, 6684 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */ - 25900, 0x81, 0x00, 1, - 2, 4, 3, 9, 25, 25, 25, 13368 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */ - 38600, 0x82, 0x00, 2, - 2, 6, 3, 10, 26, 26, 26, 20052 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */ - 49800, 0x83, 0x00, 3, - 4, 10, 3, 11, 27, 27, 27, 26738 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */ - 72200, 0x84, 0x00, 4, - 4, 14, 3, 12, 28, 28, 28, 40104 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */ - 92900, 0x85, 0x00, 5, - 4, 20, 3, 13, 29, 29, 29, 53476 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */ - 102700, 0x86, 0x00, 6, - 4, 23, 3, 14, 30, 30, 30, 60156 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */ - 112000, 0x87, 0x00, 7, - 4, 25, 3, 15, 31, 32, 32, 66840 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */ - 122000, 0x87, 0x00, 7, - 4, 25, 3, 15, 31, 32, 32, 74200 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */ - 25800, 0x88, 0x00, 8, - 0, 2, 3, 16, 33, 33, 33, 13360 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */ - 49800, 0x89, 0x00, 9, - 2, 4, 3, 17, 34, 34, 34, 26720 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */ - 71900, 0x8a, 0x00, 10, - 2, 6, 3, 18, 35, 35, 35, 40080 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */ - 92500, 0x8b, 0x00, 11, - 4, 10, 3, 19, 36, 36, 36, 53440 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */ - 130300, 0x8c, 0x00, 12, - 4, 14, 3, 20, 37, 37, 37, 80160 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */ - 162800, 0x8d, 0x00, 13, - 4, 20, 3, 21, 38, 38, 38, 106880 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */ - 178200, 0x8e, 0x00, 14, - 4, 23, 3, 22, 39, 39, 39, 120240 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */ - 192100, 0x8f, 0x00, 15, - 4, 25, 3, 23, 40, 41, 41, 133600 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */ - 207000, 0x8f, 0x00, 15, - 4, 25, 3, 23, 40, 41, 41, 148400 }, - }, - 50, /* probe interval */ - 50, /* rssi reduce interval */ - WLAN_RC_HT_FLAG, /* Phy rates allowed initially */ -}; - -/* 4ms frame limit not used for NG mode. The values filled - * for HT are the 64K max aggregate limit */ - -static struct ath_rate_table ar5416_11ng_ratetable = { - 46, - { - { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */ - 900, 0x1b, 0x00, 2, - 0, 0, 1, 0, 0, 0, 0, 0 }, - { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */ - 1900, 0x1a, 0x04, 4, - 1, 1, 1, 1, 1, 1, 1, 0 }, - { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */ - 4900, 0x19, 0x04, 11, - 2, 2, 2, 2, 2, 2, 2, 0 }, - { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */ - 8100, 0x18, 0x04, 22, - 3, 3, 2, 3, 3, 3, 3, 0 }, - { INVALID, INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, 12, - 4, 2, 1, 4, 4, 4, 4, 0 }, - { INVALID, INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, - 4, 3, 1, 5, 5, 5, 5, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10100, 0x0a, 0x00, 24, - 6, 4, 1, 6, 6, 6, 6, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 14100, 0x0e, 0x00, 36, - 6, 6, 2, 7, 7, 7, 7, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17700, 0x09, 0x00, 48, - 8, 10, 3, 8, 8, 8, 8, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23700, 0x0d, 0x00, 72, - 8, 14, 3, 9, 9, 9, 9, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, - 8, 20, 3, 10, 10, 10, 10, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 30900, 0x0c, 0x00, 108, - 8, 23, 3, 11, 11, 11, 11, 0 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */ - 6400, 0x80, 0x00, 0, - 4, 2, 3, 12, 28, 12, 28, 3216 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */ - 12700, 0x81, 0x00, 1, - 6, 4, 3, 13, 29, 13, 29, 6434 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */ - 18800, 0x82, 0x00, 2, - 6, 6, 3, 14, 30, 14, 30, 9650 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */ - 25000, 0x83, 0x00, 3, - 8, 10, 3, 15, 31, 15, 31, 12868 }, - { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */ - 36700, 0x84, 0x00, 4, - 8, 14, 3, 16, 32, 16, 32, 19304 }, - { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */ - 48100, 0x85, 0x00, 5, - 8, 20, 3, 17, 33, 17, 33, 25740 }, - { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */ - 53500, 0x86, 0x00, 6, - 8, 23, 3, 18, 34, 18, 34, 28956 }, - { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */ - 59000, 0x87, 0x00, 7, - 8, 25, 3, 19, 35, 19, 36, 32180 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */ - 12700, 0x88, 0x00, 8, - 4, 2, 3, 20, 37, 20, 37, 6430 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */ - 24800, 0x89, 0x00, 9, - 6, 4, 3, 21, 38, 21, 38, 12860 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */ - 36600, 0x8a, 0x00, 10, - 6, 6, 3, 22, 39, 22, 39, 19300 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */ - 48100, 0x8b, 0x00, 11, - 8, 10, 3, 23, 40, 23, 40, 25736 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */ - 69500, 0x8c, 0x00, 12, - 8, 14, 3, 24, 41, 24, 41, 38600 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */ - 89500, 0x8d, 0x00, 13, - 8, 20, 3, 25, 42, 25, 42, 51472 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */ - 98900, 0x8e, 0x00, 14, - 8, 23, 3, 26, 43, 26, 44, 57890 }, - { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */ - 108300, 0x8f, 0x00, 15, - 8, 25, 3, 27, 44, 27, 45, 64320 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */ - 13200, 0x80, 0x00, 0, - 8, 2, 3, 12, 28, 28, 28, 6684 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */ - 25900, 0x81, 0x00, 1, - 8, 4, 3, 13, 29, 29, 29, 13368 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */ - 38600, 0x82, 0x00, 2, - 8, 6, 3, 14, 30, 30, 30, 20052 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */ - 49800, 0x83, 0x00, 3, - 8, 10, 3, 15, 31, 31, 31, 26738 }, - { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */ - 72200, 0x84, 0x00, 4, - 8, 14, 3, 16, 32, 32, 32, 40104 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */ - 92900, 0x85, 0x00, 5, - 8, 20, 3, 17, 33, 33, 33, 53476 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */ - 102700, 0x86, 0x00, 6, - 8, 23, 3, 18, 34, 34, 34, 60156 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */ - 112000, 0x87, 0x00, 7, - 8, 23, 3, 19, 35, 36, 36, 66840 }, - { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */ - 122000, 0x87, 0x00, 7, - 8, 25, 3, 19, 35, 36, 36, 74200 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */ - 25800, 0x88, 0x00, 8, - 8, 2, 3, 20, 37, 37, 37, 13360 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */ - 49800, 0x89, 0x00, 9, - 8, 4, 3, 21, 38, 38, 38, 26720 }, - { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */ - 71900, 0x8a, 0x00, 10, - 8, 6, 3, 22, 39, 39, 39, 40080 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */ - 92500, 0x8b, 0x00, 11, - 8, 10, 3, 23, 40, 40, 40, 53440 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */ - 130300, 0x8c, 0x00, 12, - 8, 14, 3, 24, 41, 41, 41, 80160 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */ - 162800, 0x8d, 0x00, 13, - 8, 20, 3, 25, 42, 42, 42, 106880 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */ - 178200, 0x8e, 0x00, 14, - 8, 23, 3, 26, 43, 43, 43, 120240 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */ - 192100, 0x8f, 0x00, 15, - 8, 23, 3, 27, 44, 45, 45, 133600 }, - { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */ - 207000, 0x8f, 0x00, 15, - 8, 25, 3, 27, 44, 45, 45, 148400 }, - }, - 50, /* probe interval */ - 50, /* rssi reduce interval */ - WLAN_RC_HT_FLAG, /* Phy rates allowed initially */ -}; - -static struct ath_rate_table ar5416_11a_ratetable = { - 8, - { - { VALID, VALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, (0x80|12), - 0, 2, 1, 0, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, - 0, 3, 1, 1, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10000, 0x0a, 0x00, (0x80|24), - 2, 4, 2, 2, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 13900, 0x0e, 0x00, 36, - 2, 6, 2, 3, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17300, 0x09, 0x00, (0x80|48), - 4, 10, 3, 4, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23000, 0x0d, 0x00, 72, - 4, 14, 3, 5, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, - 4, 19, 3, 6, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 29300, 0x0c, 0x00, 108, - 4, 23, 3, 7, 0 }, - }, - 50, /* probe interval */ - 50, /* rssi reduce interval */ - 0, /* Phy rates allowed initially */ -}; - -static struct ath_rate_table ar5416_11g_ratetable = { - 12, - { - { VALID, VALID, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */ - 900, 0x1b, 0x00, 2, - 0, 0, 1, 0, 0 }, - { VALID, VALID, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */ - 1900, 0x1a, 0x04, 4, - 1, 1, 1, 1, 0 }, - { VALID, VALID, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */ - 4900, 0x19, 0x04, 11, - 2, 2, 2, 2, 0 }, - { VALID, VALID, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */ - 8100, 0x18, 0x04, 22, - 3, 3, 2, 3, 0 }, - { INVALID, INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, 12, - 4, 2, 1, 4, 0 }, - { INVALID, INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, - 4, 3, 1, 5, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10000, 0x0a, 0x00, 24, - 6, 4, 1, 6, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 13900, 0x0e, 0x00, 36, - 6, 6, 2, 7, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17300, 0x09, 0x00, 48, - 8, 10, 3, 8, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23000, 0x0d, 0x00, 72, - 8, 14, 3, 9, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, - 8, 19, 3, 10, 0 }, - { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 29300, 0x0c, 0x00, 108, - 8, 23, 3, 11, 0 }, - }, - 50, /* probe interval */ - 50, /* rssi reduce interval */ - 0, /* Phy rates allowed initially */ -}; - -static struct ath_rate_table ar5416_11b_ratetable = { - 4, - { - { VALID, VALID, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */ - 900, 0x1b, 0x00, (0x80|2), - 0, 0, 1, 0, 0 }, - { VALID, VALID, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */ - 1800, 0x1a, 0x04, (0x80|4), - 1, 1, 1, 1, 0 }, - { VALID, VALID, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */ - 4300, 0x19, 0x04, (0x80|11), - 1, 2, 2, 2, 0 }, - { VALID, VALID, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */ - 7100, 0x18, 0x04, (0x80|22), - 1, 4, 100, 3, 0 }, - }, - 100, /* probe interval */ - 100, /* rssi reduce interval */ - 0, /* Phy rates allowed initially */ -}; - -static inline int8_t median(int8_t a, int8_t b, int8_t c) -{ - if (a >= b) { - if (b >= c) - return b; - else if (a > c) - return c; - else - return a; - } else { - if (a >= c) - return a; - else if (b >= c) - return c; - else - return b; - } -} - -static void ath_rc_sort_validrates(struct ath_rate_table *rate_table, - struct ath_rate_priv *ath_rc_priv) -{ - u8 i, j, idx, idx_next; - - for (i = ath_rc_priv->max_valid_rate - 1; i > 0; i--) { - for (j = 0; j <= i-1; j++) { - idx = ath_rc_priv->valid_rate_index[j]; - idx_next = ath_rc_priv->valid_rate_index[j+1]; - - if (rate_table->info[idx].ratekbps > - rate_table->info[idx_next].ratekbps) { - ath_rc_priv->valid_rate_index[j] = idx_next; - ath_rc_priv->valid_rate_index[j+1] = idx; - } - } - } -} - -static void ath_rc_init_valid_txmask(struct ath_rate_priv *ath_rc_priv) -{ - u8 i; - - for (i = 0; i < ath_rc_priv->rate_table_size; i++) - ath_rc_priv->valid_rate_index[i] = 0; -} - -static inline void ath_rc_set_valid_txmask(struct ath_rate_priv *ath_rc_priv, - u8 index, int valid_tx_rate) -{ - ASSERT(index <= ath_rc_priv->rate_table_size); - ath_rc_priv->valid_rate_index[index] = valid_tx_rate ? 1 : 0; -} - -static inline int ath_rc_isvalid_txmask(struct ath_rate_priv *ath_rc_priv, - u8 index) -{ - ASSERT(index <= ath_rc_priv->rate_table_size); - return ath_rc_priv->valid_rate_index[index]; -} - -static inline int ath_rc_get_nextvalid_txrate(struct ath_rate_table *rate_table, - struct ath_rate_priv *ath_rc_priv, - u8 cur_valid_txrate, - u8 *next_idx) -{ - u8 i; - - for (i = 0; i < ath_rc_priv->max_valid_rate - 1; i++) { - if (ath_rc_priv->valid_rate_index[i] == cur_valid_txrate) { - *next_idx = ath_rc_priv->valid_rate_index[i+1]; - return 1; - } - } - - /* No more valid rates */ - *next_idx = 0; - - return 0; -} - -/* Return true only for single stream */ - -static int ath_rc_valid_phyrate(u32 phy, u32 capflag, int ignore_cw) -{ - if (WLAN_RC_PHY_HT(phy) && !(capflag & WLAN_RC_HT_FLAG)) - return 0; - if (WLAN_RC_PHY_DS(phy) && !(capflag & WLAN_RC_DS_FLAG)) - return 0; - if (WLAN_RC_PHY_SGI(phy) && !(capflag & WLAN_RC_SGI_FLAG)) - return 0; - if (!ignore_cw && WLAN_RC_PHY_HT(phy)) - if (WLAN_RC_PHY_40(phy) && !(capflag & WLAN_RC_40_FLAG)) - return 0; - if (!WLAN_RC_PHY_40(phy) && (capflag & WLAN_RC_40_FLAG)) - return 0; - return 1; -} - -static inline int -ath_rc_get_nextlowervalid_txrate(struct ath_rate_table *rate_table, - struct ath_rate_priv *ath_rc_priv, - u8 cur_valid_txrate, u8 *next_idx) -{ - int8_t i; - - for (i = 1; i < ath_rc_priv->max_valid_rate ; i++) { - if (ath_rc_priv->valid_rate_index[i] == cur_valid_txrate) { - *next_idx = ath_rc_priv->valid_rate_index[i-1]; - return 1; - } - } - - return 0; -} - -static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv, - struct ath_rate_table *rate_table, - u32 capflag) -{ - u8 i, hi = 0; - u32 valid; - - for (i = 0; i < rate_table->rate_cnt; i++) { - valid = (ath_rc_priv->single_stream ? - rate_table->info[i].valid_single_stream : - rate_table->info[i].valid); - if (valid == 1) { - u32 phy = rate_table->info[i].phy; - u8 valid_rate_count = 0; - - if (!ath_rc_valid_phyrate(phy, capflag, 0)) - continue; - - valid_rate_count = ath_rc_priv->valid_phy_ratecnt[phy]; - - ath_rc_priv->valid_phy_rateidx[phy][valid_rate_count] = i; - ath_rc_priv->valid_phy_ratecnt[phy] += 1; - ath_rc_set_valid_txmask(ath_rc_priv, i, 1); - hi = A_MAX(hi, i); - } - } - - return hi; -} - -static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv, - struct ath_rate_table *rate_table, - struct ath_rateset *rateset, - u32 capflag) -{ - u8 i, j, hi = 0; - - /* Use intersection of working rates and valid rates */ - for (i = 0; i < rateset->rs_nrates; i++) { - for (j = 0; j < rate_table->rate_cnt; j++) { - u32 phy = rate_table->info[j].phy; - u32 valid = (ath_rc_priv->single_stream ? - rate_table->info[j].valid_single_stream : - rate_table->info[j].valid); - u8 rate = rateset->rs_rates[i]; - u8 dot11rate = rate_table->info[j].dot11rate; - - /* We allow a rate only if its valid and the - * capflag matches one of the validity - * (VALID/VALID_20/VALID_40) flags */ - - if (((rate & 0x7F) == (dot11rate & 0x7F)) && - ((valid & WLAN_RC_CAP_MODE(capflag)) == - WLAN_RC_CAP_MODE(capflag)) && - !WLAN_RC_PHY_HT(phy)) { - u8 valid_rate_count = 0; - - if (!ath_rc_valid_phyrate(phy, capflag, 0)) - continue; - - valid_rate_count = - ath_rc_priv->valid_phy_ratecnt[phy]; - - ath_rc_priv->valid_phy_rateidx[phy] - [valid_rate_count] = j; - ath_rc_priv->valid_phy_ratecnt[phy] += 1; - ath_rc_set_valid_txmask(ath_rc_priv, j, 1); - hi = A_MAX(hi, j); - } - } - } - - return hi; -} - -static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv, - struct ath_rate_table *rate_table, - u8 *mcs_set, u32 capflag) -{ - struct ath_rateset *rateset = (struct ath_rateset *)mcs_set; - - u8 i, j, hi = 0; - - /* Use intersection of working rates and valid rates */ - for (i = 0; i < rateset->rs_nrates; i++) { - for (j = 0; j < rate_table->rate_cnt; j++) { - u32 phy = rate_table->info[j].phy; - u32 valid = (ath_rc_priv->single_stream ? - rate_table->info[j].valid_single_stream : - rate_table->info[j].valid); - u8 rate = rateset->rs_rates[i]; - u8 dot11rate = rate_table->info[j].dot11rate; - - if (((rate & 0x7F) != (dot11rate & 0x7F)) || - !WLAN_RC_PHY_HT(phy) || - !WLAN_RC_PHY_HT_VALID(valid, capflag)) - continue; - - if (!ath_rc_valid_phyrate(phy, capflag, 0)) - continue; - - ath_rc_priv->valid_phy_rateidx[phy] - [ath_rc_priv->valid_phy_ratecnt[phy]] = j; - ath_rc_priv->valid_phy_ratecnt[phy] += 1; - ath_rc_set_valid_txmask(ath_rc_priv, j, 1); - hi = A_MAX(hi, j); - } - } - - return hi; -} - -static u8 ath_rc_ratefind_ht(struct ath_softc *sc, - struct ath_rate_priv *ath_rc_priv, - struct ath_rate_table *rate_table, - int *is_probing) -{ - u32 dt, best_thruput, this_thruput, now_msec; - u8 rate, next_rate, best_rate, maxindex, minindex; - int8_t rssi_last, rssi_reduce = 0, index = 0; - - *is_probing = 0; - - rssi_last = median(ath_rc_priv->rssi_last, - ath_rc_priv->rssi_last_prev, - ath_rc_priv->rssi_last_prev2); - - /* - * Age (reduce) last ack rssi based on how old it is. - * The bizarre numbers are so the delta is 160msec, - * meaning we divide by 16. - * 0msec <= dt <= 25msec: don't derate - * 25msec <= dt <= 185msec: derate linearly from 0 to 10dB - * 185msec <= dt: derate by 10dB - */ - - now_msec = jiffies_to_msecs(jiffies); - dt = now_msec - ath_rc_priv->rssi_time; - - if (dt >= 185) - rssi_reduce = 10; - else if (dt >= 25) - rssi_reduce = (u8)((dt - 25) >> 4); - - /* Now reduce rssi_last by rssi_reduce */ - if (rssi_last < rssi_reduce) - rssi_last = 0; - else - rssi_last -= rssi_reduce; - - /* - * Now look up the rate in the rssi table and return it. - * If no rates match then we return 0 (lowest rate) - */ - - best_thruput = 0; - maxindex = ath_rc_priv->max_valid_rate-1; - - minindex = 0; - best_rate = minindex; - - /* - * Try the higher rate first. It will reduce memory moving time - * if we have very good channel characteristics. - */ - for (index = maxindex; index >= minindex ; index--) { - u8 per_thres; - - rate = ath_rc_priv->valid_rate_index[index]; - if (rate > ath_rc_priv->rate_max_phy) - continue; - - /* - * For TCP the average collision rate is around 11%, - * so we ignore PERs less than this. This is to - * prevent the rate we are currently using (whose - * PER might be in the 10-15 range because of TCP - * collisions) looking worse than the next lower - * rate whose PER has decayed close to 0. If we - * used to next lower rate, its PER would grow to - * 10-15 and we would be worse off then staying - * at the current rate. - */ - per_thres = ath_rc_priv->state[rate].per; - if (per_thres < 12) - per_thres = 12; - - this_thruput = rate_table->info[rate].user_ratekbps * - (100 - per_thres); - - if (best_thruput <= this_thruput) { - best_thruput = this_thruput; - best_rate = rate; - } - } - - rate = best_rate; - ath_rc_priv->rssi_last_lookup = rssi_last; - - /* - * Must check the actual rate (ratekbps) to account for - * non-monoticity of 11g's rate table - */ - - if (rate >= ath_rc_priv->rate_max_phy) { - rate = ath_rc_priv->rate_max_phy; - - /* Probe the next allowed phy state */ - if (ath_rc_get_nextvalid_txrate(rate_table, - ath_rc_priv, rate, &next_rate) && - (now_msec - ath_rc_priv->probe_time > - rate_table->probe_interval) && - (ath_rc_priv->hw_maxretry_pktcnt >= 1)) { - rate = next_rate; - ath_rc_priv->probe_rate = rate; - ath_rc_priv->probe_time = now_msec; - ath_rc_priv->hw_maxretry_pktcnt = 0; - *is_probing = 1; - } - } - - if (rate > (ath_rc_priv->rate_table_size - 1)) - rate = ath_rc_priv->rate_table_size - 1; - - ASSERT((rate_table->info[rate].valid && !ath_rc_priv->single_stream) || - (rate_table->info[rate].valid_single_stream && - ath_rc_priv->single_stream)); - - return rate; -} - -static void ath_rc_rate_set_series(struct ath_rate_table *rate_table, - struct ieee80211_tx_rate *rate, - struct ieee80211_tx_rate_control *txrc, - u8 tries, u8 rix, int rtsctsenable) -{ - rate->count = tries; - rate->idx = rix; - - if (txrc->short_preamble) - rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE; - if (txrc->rts || rtsctsenable) - rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS; - if (WLAN_RC_PHY_40(rate_table->info[rix].phy)) - rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy)) - rate->flags |= IEEE80211_TX_RC_SHORT_GI; - if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) - rate->flags |= IEEE80211_TX_RC_MCS; -} - -static void ath_rc_rate_set_rtscts(struct ath_softc *sc, - struct ath_rate_table *rate_table, - struct ieee80211_tx_info *tx_info) -{ - struct ieee80211_tx_rate *rates = tx_info->control.rates; - int i = 0, rix = 0, cix, enable_g_protection = 0; - - /* get the cix for the lowest valid rix */ - for (i = 3; i >= 0; i--) { - if (rates[i].count && (rates[i].idx >= 0)) { - rix = rates[i].idx; - break; - } - } - cix = rate_table->info[rix].ctrl_rate; - - /* All protection frames are transmited at 2Mb/s for 802.11g, - * otherwise we transmit them at 1Mb/s */ - if (sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ && - !conf_is_ht(&sc->hw->conf)) - enable_g_protection = 1; - - /* - * If 802.11g protection is enabled, determine whether to use RTS/CTS or - * just CTS. Note that this is only done for OFDM/HT unicast frames. - */ - if ((sc->sc_flags & SC_OP_PROTECT_ENABLE) && - !(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) && - (rate_table->info[rix].phy == WLAN_RC_PHY_OFDM || - WLAN_RC_PHY_HT(rate_table->info[rix].phy))) { - rates[0].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT; - cix = rate_table->info[enable_g_protection].ctrl_rate; - } - - tx_info->control.rts_cts_rate_idx = cix; -} - -static u8 ath_rc_rate_getidx(struct ath_softc *sc, - struct ath_rate_priv *ath_rc_priv, - struct ath_rate_table *rate_table, - u8 rix, u16 stepdown, - u16 min_rate) -{ - u32 j; - u8 nextindex; - - if (min_rate) { - for (j = RATE_TABLE_SIZE; j > 0; j--) { - if (ath_rc_get_nextlowervalid_txrate(rate_table, - ath_rc_priv, rix, &nextindex)) - rix = nextindex; - else - break; - } - } else { - for (j = stepdown; j > 0; j--) { - if (ath_rc_get_nextlowervalid_txrate(rate_table, - ath_rc_priv, rix, &nextindex)) - rix = nextindex; - else - break; - } - } - return rix; -} - -static void ath_rc_ratefind(struct ath_softc *sc, - struct ath_rate_priv *ath_rc_priv, - struct ieee80211_tx_rate_control *txrc) -{ - struct ath_rate_table *rate_table; - struct sk_buff *skb = txrc->skb; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_rate *rates = tx_info->control.rates; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - __le16 fc = hdr->frame_control; - u8 try_per_rate = 0, i = 0, rix, nrix; - int is_probe = 0; - - rate_table = sc->cur_rate_table; - rix = ath_rc_ratefind_ht(sc, ath_rc_priv, rate_table, &is_probe); - nrix = rix; - - if (is_probe) { - /* set one try for probe rates. For the - * probes don't enable rts */ - ath_rc_rate_set_series(rate_table, &rates[i++], txrc, - 1, nrix, 0); - - try_per_rate = (ATH_11N_TXMAXTRY/4); - /* Get the next tried/allowed rate. No RTS for the next series - * after the probe rate - */ - nrix = ath_rc_rate_getidx(sc, ath_rc_priv, - rate_table, nrix, 1, 0); - ath_rc_rate_set_series(rate_table, &rates[i++], txrc, - try_per_rate, nrix, 0); - - tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; - } else { - try_per_rate = (ATH_11N_TXMAXTRY/4); - /* Set the choosen rate. No RTS for first series entry. */ - ath_rc_rate_set_series(rate_table, &rates[i++], txrc, - try_per_rate, nrix, 0); - } - - /* Fill in the other rates for multirate retry */ - for ( ; i < 4; i++) { - u8 try_num; - u8 min_rate; - - try_num = ((i + 1) == 4) ? - ATH_11N_TXMAXTRY - (try_per_rate * i) : try_per_rate ; - min_rate = (((i + 1) == 4) && 0); - - nrix = ath_rc_rate_getidx(sc, ath_rc_priv, - rate_table, nrix, 1, min_rate); - /* All other rates in the series have RTS enabled */ - ath_rc_rate_set_series(rate_table, &rates[i], txrc, - try_num, nrix, 1); - } - - /* - * NB:Change rate series to enable aggregation when operating - * at lower MCS rates. When first rate in series is MCS2 - * in HT40 @ 2.4GHz, series should look like: - * - * {MCS2, MCS1, MCS0, MCS0}. - * - * When first rate in series is MCS3 in HT20 @ 2.4GHz, series should - * look like: - * - * {MCS3, MCS2, MCS1, MCS1} - * - * So, set fourth rate in series to be same as third one for - * above conditions. - */ - if ((sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ) && - (conf_is_ht(&sc->hw->conf))) { - u8 dot11rate = rate_table->info[rix].dot11rate; - u8 phy = rate_table->info[rix].phy; - if (i == 4 && - ((dot11rate == 2 && phy == WLAN_RC_PHY_HT_40_SS) || - (dot11rate == 3 && phy == WLAN_RC_PHY_HT_20_SS))) { - rates[3].idx = rates[2].idx; - rates[3].flags = rates[2].flags; - } - } - - /* - * Force hardware to use computed duration for next - * fragment by disabling multi-rate retry, which - * updates duration based on the multi-rate duration table. - * - * FIXME: Fix duration - */ - if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) && - (ieee80211_has_morefrags(fc) || - (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG))) { - rates[1].count = rates[2].count = rates[3].count = 0; - rates[1].idx = rates[2].idx = rates[3].idx = 0; - rates[0].count = ATH_TXMAXTRY; - } - - /* Setup RTS/CTS */ - ath_rc_rate_set_rtscts(sc, rate_table, tx_info); -} - -static bool ath_rc_update_per(struct ath_softc *sc, - struct ath_rate_table *rate_table, - struct ath_rate_priv *ath_rc_priv, - struct ath_tx_info_priv *tx_info_priv, - int tx_rate, int xretries, int retries, - u32 now_msec) -{ - bool state_change = false; - int count; - u8 last_per; - static u32 nretry_to_per_lookup[10] = { - 100 * 0 / 1, - 100 * 1 / 4, - 100 * 1 / 2, - 100 * 3 / 4, - 100 * 4 / 5, - 100 * 5 / 6, - 100 * 6 / 7, - 100 * 7 / 8, - 100 * 8 / 9, - 100 * 9 / 10 - }; - - last_per = ath_rc_priv->state[tx_rate].per; - - if (xretries) { - if (xretries == 1) { - ath_rc_priv->state[tx_rate].per += 30; - if (ath_rc_priv->state[tx_rate].per > 100) - ath_rc_priv->state[tx_rate].per = 100; - } else { - /* xretries == 2 */ - count = ARRAY_SIZE(nretry_to_per_lookup); - if (retries >= count) - retries = count - 1; - - /* new_PER = 7/8*old_PER + 1/8*(currentPER) */ - ath_rc_priv->state[tx_rate].per = - (u8)(last_per - (last_per >> 3) + (100 >> 3)); - } - - /* xretries == 1 or 2 */ - - if (ath_rc_priv->probe_rate == tx_rate) - ath_rc_priv->probe_rate = 0; - - } else { /* xretries == 0 */ - count = ARRAY_SIZE(nretry_to_per_lookup); - if (retries >= count) - retries = count - 1; - - if (tx_info_priv->n_bad_frames) { - /* new_PER = 7/8*old_PER + 1/8*(currentPER) - * Assuming that n_frames is not 0. The current PER - * from the retries is 100 * retries / (retries+1), - * since the first retries attempts failed, and the - * next one worked. For the one that worked, - * n_bad_frames subframes out of n_frames wored, - * so the PER for that part is - * 100 * n_bad_frames / n_frames, and it contributes - * 100 * n_bad_frames / (n_frames * (retries+1)) to - * the above PER. The expression below is a - * simplified version of the sum of these two terms. - */ - if (tx_info_priv->n_frames > 0) { - int n_frames, n_bad_frames; - u8 cur_per, new_per; - - n_bad_frames = retries * tx_info_priv->n_frames + - tx_info_priv->n_bad_frames; - n_frames = tx_info_priv->n_frames * (retries + 1); - cur_per = (100 * n_bad_frames / n_frames) >> 3; - new_per = (u8)(last_per - (last_per >> 3) + cur_per); - ath_rc_priv->state[tx_rate].per = new_per; - } - } else { - ath_rc_priv->state[tx_rate].per = - (u8)(last_per - (last_per >> 3) + - (nretry_to_per_lookup[retries] >> 3)); - } - - ath_rc_priv->rssi_last_prev2 = ath_rc_priv->rssi_last_prev; - ath_rc_priv->rssi_last_prev = ath_rc_priv->rssi_last; - ath_rc_priv->rssi_last = tx_info_priv->tx.ts_rssi; - ath_rc_priv->rssi_time = now_msec; - - /* - * If we got at most one retry then increase the max rate if - * this was a probe. Otherwise, ignore the probe. - */ - if (ath_rc_priv->probe_rate && ath_rc_priv->probe_rate == tx_rate) { - if (retries > 0 || 2 * tx_info_priv->n_bad_frames > - tx_info_priv->n_frames) { - /* - * Since we probed with just a single attempt, - * any retries means the probe failed. Also, - * if the attempt worked, but more than half - * the subframes were bad then also consider - * the probe a failure. - */ - ath_rc_priv->probe_rate = 0; - } else { - u8 probe_rate = 0; - - ath_rc_priv->rate_max_phy = - ath_rc_priv->probe_rate; - probe_rate = ath_rc_priv->probe_rate; - - if (ath_rc_priv->state[probe_rate].per > 30) - ath_rc_priv->state[probe_rate].per = 20; - - ath_rc_priv->probe_rate = 0; - - /* - * Since this probe succeeded, we allow the next - * probe twice as soon. This allows the maxRate - * to move up faster if the probes are - * succesful. - */ - ath_rc_priv->probe_time = - now_msec - rate_table->probe_interval / 2; - } - } - - if (retries > 0) { - /* - * Don't update anything. We don't know if - * this was because of collisions or poor signal. - * - * Later: if rssi_ack is close to - * ath_rc_priv->state[txRate].rssi_thres and we see lots - * of retries, then we could increase - * ath_rc_priv->state[txRate].rssi_thres. - */ - ath_rc_priv->hw_maxretry_pktcnt = 0; - } else { - int32_t rssi_ackAvg; - int8_t rssi_thres; - int8_t rssi_ack_vmin; - - /* - * It worked with no retries. First ignore bogus (small) - * rssi_ack values. - */ - if (tx_rate == ath_rc_priv->rate_max_phy && - ath_rc_priv->hw_maxretry_pktcnt < 255) { - ath_rc_priv->hw_maxretry_pktcnt++; - } - - if (tx_info_priv->tx.ts_rssi < - rate_table->info[tx_rate].rssi_ack_validmin) - goto exit; - - /* Average the rssi */ - if (tx_rate != ath_rc_priv->rssi_sum_rate) { - ath_rc_priv->rssi_sum_rate = tx_rate; - ath_rc_priv->rssi_sum = - ath_rc_priv->rssi_sum_cnt = 0; - } - - ath_rc_priv->rssi_sum += tx_info_priv->tx.ts_rssi; - ath_rc_priv->rssi_sum_cnt++; - - if (ath_rc_priv->rssi_sum_cnt < 4) - goto exit; - - rssi_ackAvg = - (ath_rc_priv->rssi_sum + 2) / 4; - rssi_thres = - ath_rc_priv->state[tx_rate].rssi_thres; - rssi_ack_vmin = - rate_table->info[tx_rate].rssi_ack_validmin; - - ath_rc_priv->rssi_sum = - ath_rc_priv->rssi_sum_cnt = 0; - - /* Now reduce the current rssi threshold */ - if ((rssi_ackAvg < rssi_thres + 2) && - (rssi_thres > rssi_ack_vmin)) { - ath_rc_priv->state[tx_rate].rssi_thres--; - } - - state_change = true; - } - } -exit: - return state_change; -} - -/* Update PER, RSSI and whatever else that the code thinks it is doing. - If you can make sense of all this, you really need to go out more. */ - -static void ath_rc_update_ht(struct ath_softc *sc, - struct ath_rate_priv *ath_rc_priv, - struct ath_tx_info_priv *tx_info_priv, - int tx_rate, int xretries, int retries) -{ -#define CHK_RSSI(rate) \ - ((ath_rc_priv->state[(rate)].rssi_thres + \ - rate_table->info[(rate)].rssi_ack_deltamin) > \ - ath_rc_priv->state[(rate)+1].rssi_thres) - - u32 now_msec = jiffies_to_msecs(jiffies); - int rate; - u8 last_per; - bool state_change = false; - struct ath_rate_table *rate_table = sc->cur_rate_table; - int size = ath_rc_priv->rate_table_size; - - if ((tx_rate < 0) || (tx_rate > rate_table->rate_cnt)) - return; - - /* To compensate for some imbalance between ctrl and ext. channel */ - - if (WLAN_RC_PHY_40(rate_table->info[tx_rate].phy)) - tx_info_priv->tx.ts_rssi = - tx_info_priv->tx.ts_rssi < 3 ? 0 : - tx_info_priv->tx.ts_rssi - 3; - - last_per = ath_rc_priv->state[tx_rate].per; - - /* Update PER first */ - state_change = ath_rc_update_per(sc, rate_table, ath_rc_priv, - tx_info_priv, tx_rate, xretries, - retries, now_msec); - - /* - * If this rate looks bad (high PER) then stop using it for - * a while (except if we are probing). - */ - if (ath_rc_priv->state[tx_rate].per >= 55 && tx_rate > 0 && - rate_table->info[tx_rate].ratekbps <= - rate_table->info[ath_rc_priv->rate_max_phy].ratekbps) { - ath_rc_get_nextlowervalid_txrate(rate_table, ath_rc_priv, - (u8)tx_rate, &ath_rc_priv->rate_max_phy); - - /* Don't probe for a little while. */ - ath_rc_priv->probe_time = now_msec; - } - - if (state_change) { - /* - * Make sure the rates above this have higher rssi thresholds. - * (Note: Monotonicity is kept within the OFDM rates and - * within the CCK rates. However, no adjustment is - * made to keep the rssi thresholds monotonically - * increasing between the CCK and OFDM rates.) - */ - for (rate = tx_rate; rate < size - 1; rate++) { - if (rate_table->info[rate+1].phy != - rate_table->info[tx_rate].phy) - break; - - if (CHK_RSSI(rate)) { - ath_rc_priv->state[rate+1].rssi_thres = - ath_rc_priv->state[rate].rssi_thres + - rate_table->info[rate].rssi_ack_deltamin; - } - } - - /* Make sure the rates below this have lower rssi thresholds. */ - for (rate = tx_rate - 1; rate >= 0; rate--) { - if (rate_table->info[rate].phy != - rate_table->info[tx_rate].phy) - break; - - if (CHK_RSSI(rate)) { - if (ath_rc_priv->state[rate+1].rssi_thres < - rate_table->info[rate].rssi_ack_deltamin) - ath_rc_priv->state[rate].rssi_thres = 0; - else { - ath_rc_priv->state[rate].rssi_thres = - ath_rc_priv->state[rate+1].rssi_thres - - rate_table->info[rate].rssi_ack_deltamin; - } - - if (ath_rc_priv->state[rate].rssi_thres < - rate_table->info[rate].rssi_ack_validmin) { - ath_rc_priv->state[rate].rssi_thres = - rate_table->info[rate].rssi_ack_validmin; - } - } - } - } - - /* Make sure the rates below this have lower PER */ - /* Monotonicity is kept only for rates below the current rate. */ - if (ath_rc_priv->state[tx_rate].per < last_per) { - for (rate = tx_rate - 1; rate >= 0; rate--) { - if (rate_table->info[rate].phy != - rate_table->info[tx_rate].phy) - break; - - if (ath_rc_priv->state[rate].per > - ath_rc_priv->state[rate+1].per) { - ath_rc_priv->state[rate].per = - ath_rc_priv->state[rate+1].per; - } - } - } - - /* Maintain monotonicity for rates above the current rate */ - for (rate = tx_rate; rate < size - 1; rate++) { - if (ath_rc_priv->state[rate+1].per < - ath_rc_priv->state[rate].per) - ath_rc_priv->state[rate+1].per = - ath_rc_priv->state[rate].per; - } - - /* Every so often, we reduce the thresholds and - * PER (different for CCK and OFDM). */ - if (now_msec - ath_rc_priv->rssi_down_time >= - rate_table->rssi_reduce_interval) { - - for (rate = 0; rate < size; rate++) { - if (ath_rc_priv->state[rate].rssi_thres > - rate_table->info[rate].rssi_ack_validmin) - ath_rc_priv->state[rate].rssi_thres -= 1; - } - ath_rc_priv->rssi_down_time = now_msec; - } - - /* Every so often, we reduce the thresholds - * and PER (different for CCK and OFDM). */ - if (now_msec - ath_rc_priv->per_down_time >= - rate_table->rssi_reduce_interval) { - for (rate = 0; rate < size; rate++) { - ath_rc_priv->state[rate].per = - 7 * ath_rc_priv->state[rate].per / 8; - } - - ath_rc_priv->per_down_time = now_msec; - } - - ath_debug_stat_retries(sc, tx_rate, xretries, retries, - ath_rc_priv->state[tx_rate].per); - -#undef CHK_RSSI -} - -static int ath_rc_get_rateindex(struct ath_rate_table *rate_table, - struct ieee80211_tx_rate *rate) -{ - int rix; - - if ((rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && - (rate->flags & IEEE80211_TX_RC_SHORT_GI)) - rix = rate_table->info[rate->idx].ht_index; - else if (rate->flags & IEEE80211_TX_RC_SHORT_GI) - rix = rate_table->info[rate->idx].sgi_index; - else if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) - rix = rate_table->info[rate->idx].cw40index; - else - rix = rate_table->info[rate->idx].base_index; - - return rix; -} - -static void ath_rc_tx_status(struct ath_softc *sc, - struct ath_rate_priv *ath_rc_priv, - struct ieee80211_tx_info *tx_info, - int final_ts_idx, int xretries, int long_retry) -{ - struct ath_tx_info_priv *tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - struct ath_rate_table *rate_table; - struct ieee80211_tx_rate *rates = tx_info->status.rates; - u8 flags; - u32 i = 0, rix; - - rate_table = sc->cur_rate_table; - - /* - * If the first rate is not the final index, there - * are intermediate rate failures to be processed. - */ - if (final_ts_idx != 0) { - /* Process intermediate rates that failed.*/ - for (i = 0; i < final_ts_idx ; i++) { - if (rates[i].count != 0 && (rates[i].idx >= 0)) { - flags = rates[i].flags; - - /* If HT40 and we have switched mode from - * 40 to 20 => don't update */ - - if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && - (ath_rc_priv->rc_phy_mode != WLAN_RC_40_FLAG)) - return; - - rix = ath_rc_get_rateindex(rate_table, &rates[i]); - ath_rc_update_ht(sc, ath_rc_priv, - tx_info_priv, rix, - xretries ? 1 : 2, - rates[i].count); - } - } - } else { - /* - * Handle the special case of MIMO PS burst, where the second - * aggregate is sent out with only one rate and one try. - * Treating it as an excessive retry penalizes the rate - * inordinately. - */ - if (rates[0].count == 1 && xretries == 1) - xretries = 2; - } - - flags = rates[i].flags; - - /* If HT40 and we have switched mode from 40 to 20 => don't update */ - if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && - (ath_rc_priv->rc_phy_mode != WLAN_RC_40_FLAG)) { - return; - } - - rix = ath_rc_get_rateindex(rate_table, &rates[i]); - ath_rc_update_ht(sc, ath_rc_priv, tx_info_priv, rix, - xretries, long_retry); -} - -static struct ath_rate_table *ath_choose_rate_table(struct ath_softc *sc, - enum ieee80211_band band, - bool is_ht, bool is_cw_40) -{ - int mode = 0; - - switch(band) { - case IEEE80211_BAND_2GHZ: - mode = ATH9K_MODE_11G; - if (is_ht) - mode = ATH9K_MODE_11NG_HT20; - if (is_cw_40) - mode = ATH9K_MODE_11NG_HT40PLUS; - break; - case IEEE80211_BAND_5GHZ: - mode = ATH9K_MODE_11A; - if (is_ht) - mode = ATH9K_MODE_11NA_HT20; - if (is_cw_40) - mode = ATH9K_MODE_11NA_HT40PLUS; - break; - default: - DPRINTF(sc, ATH_DBG_CONFIG, "Invalid band\n"); - return NULL; - } - - BUG_ON(mode >= ATH9K_MODE_MAX); - - DPRINTF(sc, ATH_DBG_CONFIG, "Choosing rate table for mode: %d\n", mode); - return sc->hw_rate_table[mode]; -} - -static void ath_rc_init(struct ath_softc *sc, - struct ath_rate_priv *ath_rc_priv, - struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, - struct ath_rate_table *rate_table) -{ - struct ath_rateset *rateset = &ath_rc_priv->neg_rates; - u8 *ht_mcs = (u8 *)&ath_rc_priv->neg_ht_rates; - u8 i, j, k, hi = 0, hthi = 0; - - if (!rate_table) { - DPRINTF(sc, ATH_DBG_FATAL, "Rate table not initialized\n"); - return; - } - - /* Initial rate table size. Will change depending - * on the working rate set */ - ath_rc_priv->rate_table_size = RATE_TABLE_SIZE; - - /* Initialize thresholds according to the global rate table */ - for (i = 0 ; i < ath_rc_priv->rate_table_size; i++) { - ath_rc_priv->state[i].rssi_thres = - rate_table->info[i].rssi_ack_validmin; - ath_rc_priv->state[i].per = 0; - } - - /* Determine the valid rates */ - ath_rc_init_valid_txmask(ath_rc_priv); - - for (i = 0; i < WLAN_RC_PHY_MAX; i++) { - for (j = 0; j < MAX_TX_RATE_PHY; j++) - ath_rc_priv->valid_phy_rateidx[i][j] = 0; - ath_rc_priv->valid_phy_ratecnt[i] = 0; - } - ath_rc_priv->rc_phy_mode = ath_rc_priv->ht_cap & WLAN_RC_40_FLAG; - - /* Set stream capability */ - ath_rc_priv->single_stream = (ath_rc_priv->ht_cap & WLAN_RC_DS_FLAG) ? 0 : 1; - - if (!rateset->rs_nrates) { - /* No working rate, just initialize valid rates */ - hi = ath_rc_init_validrates(ath_rc_priv, rate_table, - ath_rc_priv->ht_cap); - } else { - /* Use intersection of working rates and valid rates */ - hi = ath_rc_setvalid_rates(ath_rc_priv, rate_table, - rateset, ath_rc_priv->ht_cap); - if (ath_rc_priv->ht_cap & WLAN_RC_HT_FLAG) { - hthi = ath_rc_setvalid_htrates(ath_rc_priv, - rate_table, - ht_mcs, - ath_rc_priv->ht_cap); - } - hi = A_MAX(hi, hthi); - } - - ath_rc_priv->rate_table_size = hi + 1; - ath_rc_priv->rate_max_phy = 0; - ASSERT(ath_rc_priv->rate_table_size <= RATE_TABLE_SIZE); - - for (i = 0, k = 0; i < WLAN_RC_PHY_MAX; i++) { - for (j = 0; j < ath_rc_priv->valid_phy_ratecnt[i]; j++) { - ath_rc_priv->valid_rate_index[k++] = - ath_rc_priv->valid_phy_rateidx[i][j]; - } - - if (!ath_rc_valid_phyrate(i, rate_table->initial_ratemax, 1) - || !ath_rc_priv->valid_phy_ratecnt[i]) - continue; - - ath_rc_priv->rate_max_phy = ath_rc_priv->valid_phy_rateidx[i][j-1]; - } - ASSERT(ath_rc_priv->rate_table_size <= RATE_TABLE_SIZE); - ASSERT(k <= RATE_TABLE_SIZE); - - ath_rc_priv->max_valid_rate = k; - ath_rc_sort_validrates(rate_table, ath_rc_priv); - ath_rc_priv->rate_max_phy = ath_rc_priv->valid_rate_index[k-4]; - sc->cur_rate_table = rate_table; - - DPRINTF(sc, ATH_DBG_CONFIG, "RC Initialized with capabilities: 0x%x\n", - ath_rc_priv->ht_cap); -} - -static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta, - bool is_cw40, bool is_sgi40) -{ - u8 caps = 0; - - if (sta->ht_cap.ht_supported) { - caps = WLAN_RC_HT_FLAG; - if (sc->sc_ah->caps.tx_chainmask != 1 && - ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_DS, 0, NULL)) { - if (sta->ht_cap.mcs.rx_mask[1]) - caps |= WLAN_RC_DS_FLAG; - } - if (is_cw40) - caps |= WLAN_RC_40_FLAG; - if (is_sgi40) - caps |= WLAN_RC_SGI_FLAG; - } - - return caps; -} - -/***********************************/ -/* mac80211 Rate Control callbacks */ -/***********************************/ - -static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb) -{ - struct ath_softc *sc = priv; - struct ath_rate_priv *ath_rc_priv = priv_sta; - struct ath_tx_info_priv *tx_info_priv = NULL; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr; - int final_ts_idx, tx_status = 0, is_underrun = 0; - __le16 fc; - - hdr = (struct ieee80211_hdr *)skb->data; - fc = hdr->frame_control; - tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - final_ts_idx = tx_info_priv->tx.ts_rateindex; - - if (!priv_sta || !ieee80211_is_data(fc) || - !tx_info_priv->update_rc) - goto exit; - - if (tx_info_priv->tx.ts_status & ATH9K_TXERR_FILT) - goto exit; - - /* - * If underrun error is seen assume it as an excessive retry only - * if prefetch trigger level have reached the max (0x3f for 5416) - * Adjust the long retry as if the frame was tried ATH_11N_TXMAXTRY - * times. This affects how ratectrl updates PER for the failed rate. - */ - if (tx_info_priv->tx.ts_flags & - (ATH9K_TX_DATA_UNDERRUN | ATH9K_TX_DELIM_UNDERRUN) && - ((sc->sc_ah->tx_trig_level) >= ath_rc_priv->tx_triglevel_max)) { - tx_status = 1; - is_underrun = 1; - } - - if ((tx_info_priv->tx.ts_status & ATH9K_TXERR_XRETRY) || - (tx_info_priv->tx.ts_status & ATH9K_TXERR_FIFO)) - tx_status = 1; - - ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status, - (is_underrun) ? ATH_11N_TXMAXTRY : - tx_info_priv->tx.ts_longretry); - - /* Check if aggregation has to be enabled for this tid */ - if (conf_is_ht(&sc->hw->conf) && - !(skb->protocol == cpu_to_be16(ETH_P_PAE))) { - if (ieee80211_is_data_qos(fc)) { - u8 *qc, tid; - struct ath_node *an; - - qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & 0xf; - an = (struct ath_node *)sta->drv_priv; - - if(ath_tx_aggr_check(sc, an, tid)) - ieee80211_start_tx_ba_session(sc->hw, hdr->addr1, tid); - } - } - - ath_debug_stat_rc(sc, skb); -exit: - kfree(tx_info_priv); -} - -static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, - struct ieee80211_tx_rate_control *txrc) -{ - struct ieee80211_supported_band *sband = txrc->sband; - struct sk_buff *skb = txrc->skb; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ath_softc *sc = priv; - struct ath_rate_priv *ath_rc_priv = priv_sta; - __le16 fc = hdr->frame_control; - - /* lowest rate for management and multicast/broadcast frames */ - if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) || - !sta) { - tx_info->control.rates[0].idx = rate_lowest_index(sband, sta); - tx_info->control.rates[0].count = - is_multicast_ether_addr(hdr->addr1) ? 1 : ATH_MGT_TXMAXTRY; - return; - } - - /* Find tx rate for unicast frames */ - ath_rc_ratefind(sc, ath_rc_priv, txrc); -} - -static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta) -{ - struct ath_softc *sc = priv; - struct ath_rate_priv *ath_rc_priv = priv_sta; - struct ath_rate_table *rate_table = NULL; - bool is_cw40, is_sgi40; - int i, j = 0; - - for (i = 0; i < sband->n_bitrates; i++) { - if (sta->supp_rates[sband->band] & BIT(i)) { - ath_rc_priv->neg_rates.rs_rates[j] - = (sband->bitrates[i].bitrate * 2) / 10; - j++; - } - } - ath_rc_priv->neg_rates.rs_nrates = j; - - if (sta->ht_cap.ht_supported) { - for (i = 0, j = 0; i < 77; i++) { - if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8))) - ath_rc_priv->neg_ht_rates.rs_rates[j++] = i; - if (j == ATH_RATE_MAX) - break; - } - ath_rc_priv->neg_ht_rates.rs_nrates = j; - } - - is_cw40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40; - is_sgi40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; - - /* Choose rate table first */ - - if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) || - (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) || - (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)) { - rate_table = ath_choose_rate_table(sc, sband->band, - sta->ht_cap.ht_supported, - is_cw40); - } else if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) { - /* cur_rate_table would be set on init through config() */ - rate_table = sc->cur_rate_table; - } - - ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi40); - ath_rc_init(sc, priv_sta, sband, sta, rate_table); -} - -static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - u32 changed) -{ - struct ath_softc *sc = priv; - struct ath_rate_priv *ath_rc_priv = priv_sta; - struct ath_rate_table *rate_table = NULL; - bool oper_cw40 = false, oper_sgi40; - bool local_cw40 = (ath_rc_priv->ht_cap & WLAN_RC_40_FLAG) ? - true : false; - bool local_sgi40 = (ath_rc_priv->ht_cap & WLAN_RC_SGI_FLAG) ? - true : false; - - /* FIXME: Handle AP mode later when we support CWM */ - - if (changed & IEEE80211_RC_HT_CHANGED) { - if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION) - return; - - if (sc->hw->conf.channel_type == NL80211_CHAN_HT40MINUS || - sc->hw->conf.channel_type == NL80211_CHAN_HT40PLUS) - oper_cw40 = true; - - oper_sgi40 = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ? - true : false; - - if ((local_cw40 != oper_cw40) || (local_sgi40 != oper_sgi40)) { - rate_table = ath_choose_rate_table(sc, sband->band, - sta->ht_cap.ht_supported, - oper_cw40); - ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, - oper_cw40, oper_sgi40); - ath_rc_init(sc, priv_sta, sband, sta, rate_table); - - DPRINTF(sc, ATH_DBG_CONFIG, - "Operating HT Bandwidth changed to: %d\n", - sc->hw->conf.channel_type); - } - } -} - -static void *ath_rate_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) -{ - struct ath_wiphy *aphy = hw->priv; - return aphy->sc; -} - -static void ath_rate_free(void *priv) -{ - return; -} - -static void *ath_rate_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp) -{ - struct ath_softc *sc = priv; - struct ath_rate_priv *rate_priv; - - rate_priv = kzalloc(sizeof(struct ath_rate_priv), gfp); - if (!rate_priv) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to allocate private rc structure\n"); - return NULL; - } - - rate_priv->rssi_down_time = jiffies_to_msecs(jiffies); - rate_priv->tx_triglevel_max = sc->sc_ah->caps.tx_triglevel_max; - - return rate_priv; -} - -static void ath_rate_free_sta(void *priv, struct ieee80211_sta *sta, - void *priv_sta) -{ - struct ath_rate_priv *rate_priv = priv_sta; - kfree(rate_priv); -} - -static struct rate_control_ops ath_rate_ops = { - .module = NULL, - .name = "ath9k_rate_control", - .tx_status = ath_tx_status, - .get_rate = ath_get_rate, - .rate_init = ath_rate_init, - .rate_update = ath_rate_update, - .alloc = ath_rate_alloc, - .free = ath_rate_free, - .alloc_sta = ath_rate_alloc_sta, - .free_sta = ath_rate_free_sta, -}; - -void ath_rate_attach(struct ath_softc *sc) -{ - sc->hw_rate_table[ATH9K_MODE_11B] = - &ar5416_11b_ratetable; - sc->hw_rate_table[ATH9K_MODE_11A] = - &ar5416_11a_ratetable; - sc->hw_rate_table[ATH9K_MODE_11G] = - &ar5416_11g_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NA_HT20] = - &ar5416_11na_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NG_HT20] = - &ar5416_11ng_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS] = - &ar5416_11na_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS] = - &ar5416_11na_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS] = - &ar5416_11ng_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS] = - &ar5416_11ng_ratetable; -} - -int ath_rate_control_register(void) -{ - return ieee80211_rate_control_register(&ath_rate_ops); -} - -void ath_rate_control_unregister(void) -{ - ieee80211_rate_control_unregister(&ath_rate_ops); -} |