xmit.c revision 5100d5ac81b9330dc57e35adbe50923ba6107b8f
1e4d6b7951812d98417feb10784e400e253caf633Michael Buesch/* 2e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 3e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Broadcom B43 wireless driver 4e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 5e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Transmission (TX/RX) related functions. 6e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 7e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> 81f21ad2a4f7f66855dae600ddd635ff5fb299bbdStefano Brivio Copyright (C) 2005 Stefano Brivio <stefano.brivio@polimi.it> 9e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Copyright (C) 2005, 2006 Michael Buesch <mb@bu3sch.de> 10e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> 11e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> 12e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 13e4d6b7951812d98417feb10784e400e253caf633Michael Buesch This program is free software; you can redistribute it and/or modify 14e4d6b7951812d98417feb10784e400e253caf633Michael Buesch it under the terms of the GNU General Public License as published by 15e4d6b7951812d98417feb10784e400e253caf633Michael Buesch the Free Software Foundation; either version 2 of the License, or 16e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (at your option) any later version. 17e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 18e4d6b7951812d98417feb10784e400e253caf633Michael Buesch This program is distributed in the hope that it will be useful, 19e4d6b7951812d98417feb10784e400e253caf633Michael Buesch but WITHOUT ANY WARRANTY; without even the implied warranty of 20e4d6b7951812d98417feb10784e400e253caf633Michael Buesch MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21e4d6b7951812d98417feb10784e400e253caf633Michael Buesch GNU General Public License for more details. 22e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 23e4d6b7951812d98417feb10784e400e253caf633Michael Buesch You should have received a copy of the GNU General Public License 24e4d6b7951812d98417feb10784e400e253caf633Michael Buesch along with this program; see the file COPYING. If not, write to 25e4d6b7951812d98417feb10784e400e253caf633Michael Buesch the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, 26e4d6b7951812d98417feb10784e400e253caf633Michael Buesch Boston, MA 02110-1301, USA. 27e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 28e4d6b7951812d98417feb10784e400e253caf633Michael Buesch*/ 29e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 30e4d6b7951812d98417feb10784e400e253caf633Michael Buesch#include "xmit.h" 31e4d6b7951812d98417feb10784e400e253caf633Michael Buesch#include "phy.h" 32e4d6b7951812d98417feb10784e400e253caf633Michael Buesch#include "dma.h" 335100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch#include "pio.h" 3403b29773b613f10d2f97dbf0983f1c4c58507967Michael Buesch 35e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 368318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg/* Extract the bitrate index out of a CCK PLCP header. */ 378318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Bergstatic int b43_plcp_get_bitrate_idx_cck(struct b43_plcp_hdr6 *plcp) 38e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 39e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (plcp->raw[0]) { 40e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x0A: 418318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return 0; 42e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x14: 438318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return 1; 44e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x37: 458318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return 2; 46e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x6E: 478318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return 3; 48e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 49e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 508318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return -1; 51e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 52e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 538318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg/* Extract the bitrate index out of an OFDM PLCP header. */ 548318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Bergstatic u8 b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy) 55e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 568318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg int base = aphy ? 0 : 4; 578318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 58e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (plcp->raw[0] & 0xF) { 59e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0xB: 608318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 0; 61e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0xF: 628318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 1; 63e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0xA: 648318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 2; 65e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0xE: 668318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 3; 67e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x9: 688318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 4; 69e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0xD: 708318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 5; 71e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x8: 728318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 6; 73e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0xC: 748318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return base + 7; 75e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 76e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 778318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg return -1; 78e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 79e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 80e4d6b7951812d98417feb10784e400e253caf633Michael Bueschu8 b43_plcp_get_ratecode_cck(const u8 bitrate) 81e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 82e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (bitrate) { 83e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_1MB: 84e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0x0A; 85e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_2MB: 86e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0x14; 87e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_5MB: 88e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0x37; 89e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_11MB: 90e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0x6E; 91e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 92e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 93e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0; 94e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 95e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 96e4d6b7951812d98417feb10784e400e253caf633Michael Bueschu8 b43_plcp_get_ratecode_ofdm(const u8 bitrate) 97e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 98e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (bitrate) { 99e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_6MB: 100e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0xB; 101e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_9MB: 102e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0xF; 103e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_12MB: 104e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0xA; 105e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_18MB: 106e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0xE; 107e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_24MB: 108e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0x9; 109e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_36MB: 110e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0xD; 111e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_48MB: 112e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0x8; 113e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_54MB: 114e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0xC; 115e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 116e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 117e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0; 118e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 119e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 120e4d6b7951812d98417feb10784e400e253caf633Michael Bueschvoid b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp, 121e4d6b7951812d98417feb10784e400e253caf633Michael Buesch const u16 octets, const u8 bitrate) 122e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 123e4d6b7951812d98417feb10784e400e253caf633Michael Buesch __le32 *data = &(plcp->data); 124e4d6b7951812d98417feb10784e400e253caf633Michael Buesch __u8 *raw = plcp->raw; 125e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 126e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (b43_is_ofdm_rate(bitrate)) { 1271a09404a2338163f181d170c7abdc2242b6c6f03Michael Buesch u32 d; 1281a09404a2338163f181d170c7abdc2242b6c6f03Michael Buesch 1291a09404a2338163f181d170c7abdc2242b6c6f03Michael Buesch d = b43_plcp_get_ratecode_ofdm(bitrate); 130e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(octets & 0xF000); 1311a09404a2338163f181d170c7abdc2242b6c6f03Michael Buesch d |= (octets << 5); 1321a09404a2338163f181d170c7abdc2242b6c6f03Michael Buesch *data = cpu_to_le32(d); 133e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else { 134e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u32 plen; 135e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 136e4d6b7951812d98417feb10784e400e253caf633Michael Buesch plen = octets * 16 / bitrate; 137e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if ((octets * 16 % bitrate) > 0) { 138e4d6b7951812d98417feb10784e400e253caf633Michael Buesch plen++; 139e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if ((bitrate == B43_CCK_RATE_11MB) 140e4d6b7951812d98417feb10784e400e253caf633Michael Buesch && ((octets * 8 % 11) < 4)) { 141e4d6b7951812d98417feb10784e400e253caf633Michael Buesch raw[1] = 0x84; 142e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else 143e4d6b7951812d98417feb10784e400e253caf633Michael Buesch raw[1] = 0x04; 144e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else 145e4d6b7951812d98417feb10784e400e253caf633Michael Buesch raw[1] = 0x04; 146e4d6b7951812d98417feb10784e400e253caf633Michael Buesch *data |= cpu_to_le32(plen << 16); 147e4d6b7951812d98417feb10784e400e253caf633Michael Buesch raw[0] = b43_plcp_get_ratecode_cck(bitrate); 148e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 149e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 150e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 151e4d6b7951812d98417feb10784e400e253caf633Michael Bueschstatic u8 b43_calc_fallback_rate(u8 bitrate) 152e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 153e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (bitrate) { 154e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_1MB: 155e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_CCK_RATE_1MB; 156e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_2MB: 157e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_CCK_RATE_1MB; 158e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_5MB: 159e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_CCK_RATE_2MB; 160e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_CCK_RATE_11MB: 161e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_CCK_RATE_5MB; 162e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_6MB: 163e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_CCK_RATE_5MB; 164e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_9MB: 165e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_6MB; 166e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_12MB: 167e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_9MB; 168e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_18MB: 169e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_12MB; 170e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_24MB: 171e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_18MB; 172e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_36MB: 173e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_24MB; 174e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_48MB: 175e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_36MB; 176e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_OFDM_RATE_54MB: 177e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return B43_OFDM_RATE_48MB; 178e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 179e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 180e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return 0; 181e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 182e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 183eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch/* Generate a TX data header. */ 18409552ccd8277e6382097e93a40f7311a09449367Michael Bueschint b43_generate_txhdr(struct b43_wldev *dev, 18509552ccd8277e6382097e93a40f7311a09449367Michael Buesch u8 *_txhdr, 18609552ccd8277e6382097e93a40f7311a09449367Michael Buesch const unsigned char *fragment_data, 18709552ccd8277e6382097e93a40f7311a09449367Michael Buesch unsigned int fragment_len, 18809552ccd8277e6382097e93a40f7311a09449367Michael Buesch const struct ieee80211_tx_control *txctl, 18909552ccd8277e6382097e93a40f7311a09449367Michael Buesch u16 cookie) 190e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 191eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; 192e4d6b7951812d98417feb10784e400e253caf633Michael Buesch const struct b43_phy *phy = &dev->phy; 193e4d6b7951812d98417feb10784e400e253caf633Michael Buesch const struct ieee80211_hdr *wlhdr = 194e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (const struct ieee80211_hdr *)fragment_data; 195e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)); 196e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u16 fctl = le16_to_cpu(wlhdr->frame_control); 1978318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg struct ieee80211_rate *fbrate; 198e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u8 rate, rate_fb; 199e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int rate_ofdm, rate_fb_ofdm; 200e4d6b7951812d98417feb10784e400e253caf633Michael Buesch unsigned int plcp_fragment_len; 201e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u32 mac_ctl = 0; 202e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u16 phy_ctl = 0; 203e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u8 extra_ft = 0; 204e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 205e4d6b7951812d98417feb10784e400e253caf633Michael Buesch memset(txhdr, 0, sizeof(*txhdr)); 206e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 2078318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg WARN_ON(!txctl->tx_rate); 2088318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg rate = txctl->tx_rate ? txctl->tx_rate->hw_value : B43_CCK_RATE_1MB; 209e4d6b7951812d98417feb10784e400e253caf633Michael Buesch rate_ofdm = b43_is_ofdm_rate(rate); 2108318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg fbrate = txctl->alt_retry_rate ? : txctl->tx_rate; 2118318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg rate_fb = fbrate->hw_value; 212e4d6b7951812d98417feb10784e400e253caf633Michael Buesch rate_fb_ofdm = b43_is_ofdm_rate(rate_fb); 213e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 214e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (rate_ofdm) 215e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->phy_rate = b43_plcp_get_ratecode_ofdm(rate); 216e4d6b7951812d98417feb10784e400e253caf633Michael Buesch else 217e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->phy_rate = b43_plcp_get_ratecode_cck(rate); 218e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->mac_frame_ctl = wlhdr->frame_control; 219e4d6b7951812d98417feb10784e400e253caf633Michael Buesch memcpy(txhdr->tx_receiver, wlhdr->addr1, 6); 220e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 221e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Calculate duration for fallback rate */ 222e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if ((rate_fb == rate) || 223e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (wlhdr->duration_id & cpu_to_le16(0x8000)) || 224e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (wlhdr->duration_id == cpu_to_le16(0))) { 225e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* If the fallback rate equals the normal rate or the 226e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * dur_id field contains an AID, CFP magic or 0, 227e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * use the original dur_id field. */ 228e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->dur_fb = wlhdr->duration_id; 229e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else { 230e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw, 23132bfd35d4b63bd63de4bb0d791ef049c3c868726Johannes Berg txctl->vif, 232e4d6b7951812d98417feb10784e400e253caf633Michael Buesch fragment_len, 2338318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg fbrate); 234e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 235e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 236e4d6b7951812d98417feb10784e400e253caf633Michael Buesch plcp_fragment_len = fragment_len + FCS_LEN; 237e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (use_encryption) { 238e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u8 key_idx = (u16) (txctl->key_idx); 239e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct b43_key *key; 240e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int wlhdr_len; 241e4d6b7951812d98417feb10784e400e253caf633Michael Buesch size_t iv_len; 242e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 243e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(key_idx >= dev->max_nr_keys); 244e4d6b7951812d98417feb10784e400e253caf633Michael Buesch key = &(dev->key[key_idx]); 2457be1bb6b798d506693d2d8668e801951996b5a4aMichael Buesch 24609552ccd8277e6382097e93a40f7311a09449367Michael Buesch if (unlikely(!key->keyconf)) { 24709552ccd8277e6382097e93a40f7311a09449367Michael Buesch /* This key is invalid. This might only happen 24809552ccd8277e6382097e93a40f7311a09449367Michael Buesch * in a short timeframe after machine resume before 24909552ccd8277e6382097e93a40f7311a09449367Michael Buesch * we were able to reconfigure keys. 25009552ccd8277e6382097e93a40f7311a09449367Michael Buesch * Drop this packet completely. Do not transmit it 25109552ccd8277e6382097e93a40f7311a09449367Michael Buesch * unencrypted to avoid leaking information. */ 25209552ccd8277e6382097e93a40f7311a09449367Michael Buesch return -ENOKEY; 2537be1bb6b798d506693d2d8668e801951996b5a4aMichael Buesch } 25409552ccd8277e6382097e93a40f7311a09449367Michael Buesch 25509552ccd8277e6382097e93a40f7311a09449367Michael Buesch /* Hardware appends ICV. */ 25609552ccd8277e6382097e93a40f7311a09449367Michael Buesch plcp_fragment_len += txctl->icv_len; 25709552ccd8277e6382097e93a40f7311a09449367Michael Buesch 25809552ccd8277e6382097e93a40f7311a09449367Michael Buesch key_idx = b43_kidx_to_fw(dev, key_idx); 25909552ccd8277e6382097e93a40f7311a09449367Michael Buesch mac_ctl |= (key_idx << B43_TXH_MAC_KEYIDX_SHIFT) & 26009552ccd8277e6382097e93a40f7311a09449367Michael Buesch B43_TXH_MAC_KEYIDX; 26109552ccd8277e6382097e93a40f7311a09449367Michael Buesch mac_ctl |= (key->algorithm << B43_TXH_MAC_KEYALG_SHIFT) & 26209552ccd8277e6382097e93a40f7311a09449367Michael Buesch B43_TXH_MAC_KEYALG; 26309552ccd8277e6382097e93a40f7311a09449367Michael Buesch wlhdr_len = ieee80211_get_hdrlen(fctl); 26409552ccd8277e6382097e93a40f7311a09449367Michael Buesch iv_len = min((size_t) txctl->iv_len, 26509552ccd8277e6382097e93a40f7311a09449367Michael Buesch ARRAY_SIZE(txhdr->iv)); 26609552ccd8277e6382097e93a40f7311a09449367Michael Buesch memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len); 267e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 268eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch if (b43_is_old_txhdr_format(dev)) { 269eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->old_format.plcp), 270eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch plcp_fragment_len, rate); 271eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } else { 272eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->new_format.plcp), 273eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch plcp_fragment_len, rate); 274eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } 275e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp_fb), 276e4d6b7951812d98417feb10784e400e253caf633Michael Buesch plcp_fragment_len, rate_fb); 277e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 278e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Extra Frame Types */ 279e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (rate_fb_ofdm) 280eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch extra_ft |= B43_TXH_EFT_FB_OFDM; 281eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch else 282eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch extra_ft |= B43_TXH_EFT_FB_CCK; 283e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 284e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Set channel radio code. Note that the micrcode ORs 0x100 to 285e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * this value before comparing it to the value in SHM, if this 286e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * is a 5Ghz packet. 287e4d6b7951812d98417feb10784e400e253caf633Michael Buesch */ 288e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->chan_radio_code = phy->channel; 289e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 290e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* PHY TX Control word */ 291e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (rate_ofdm) 292eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ENC_OFDM; 293eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch else 294eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ENC_CCK; 2958318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg if (txctl->flags & IEEE80211_TXCTL_SHORT_PREAMBLE) 296eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_SHORTPRMBL; 2979db1f6d725921c413cc344beda5e7e7d011b02e7Michael Buesch 2989db1f6d725921c413cc344beda5e7e7d011b02e7Michael Buesch switch (b43_ieee80211_antenna_sanitize(dev, txctl->antenna_sel_tx)) { 2999db1f6d725921c413cc344beda5e7e7d011b02e7Michael Buesch case 0: /* Default */ 300eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ANT01AUTO; 301e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 3029db1f6d725921c413cc344beda5e7e7d011b02e7Michael Buesch case 1: /* Antenna 0 */ 303eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ANT0; 304e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 3059db1f6d725921c413cc344beda5e7e7d011b02e7Michael Buesch case 2: /* Antenna 1 */ 306eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ANT1; 307eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch break; 308eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch case 3: /* Antenna 2 */ 309eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ANT2; 310eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch break; 311eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch case 4: /* Antenna 3 */ 312eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch phy_ctl |= B43_TXH_PHY_ANT3; 313e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 314e4d6b7951812d98417feb10784e400e253caf633Michael Buesch default: 315e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 316e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 317e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 318e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* MAC control */ 319e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (!(txctl->flags & IEEE80211_TXCTL_NO_ACK)) 320eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_ACK; 321e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (!(((fctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && 322e4d6b7951812d98417feb10784e400e253caf633Michael Buesch ((fctl & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL))) 323eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_HWSEQ; 324e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (txctl->flags & IEEE80211_TXCTL_FIRST_FRAGMENT) 325eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_STMSDU; 326e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (phy->type == B43_PHYTYPE_A) 327eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_5GHZ; 32874cfdba7ce7b601559a4bcdc9054baf1bdc6948dMichael Buesch if (txctl->flags & IEEE80211_TXCTL_LONG_RETRY_LIMIT) 329eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_LONGFRAME; 330e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 331e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Generate the RTS or CTS-to-self frame */ 332e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if ((txctl->flags & IEEE80211_TXCTL_USE_RTS_CTS) || 333e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) { 334e4d6b7951812d98417feb10784e400e253caf633Michael Buesch unsigned int len; 335e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct ieee80211_hdr *hdr; 336e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int rts_rate, rts_rate_fb; 337e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int rts_rate_ofdm, rts_rate_fb_ofdm; 338eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch struct b43_plcp_hdr6 *plcp; 339e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 3408318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg WARN_ON(!txctl->rts_cts_rate); 3418318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg rts_rate = txctl->rts_cts_rate ? txctl->rts_cts_rate->hw_value : B43_CCK_RATE_1MB; 342e4d6b7951812d98417feb10784e400e253caf633Michael Buesch rts_rate_ofdm = b43_is_ofdm_rate(rts_rate); 343e4d6b7951812d98417feb10784e400e253caf633Michael Buesch rts_rate_fb = b43_calc_fallback_rate(rts_rate); 344e4d6b7951812d98417feb10784e400e253caf633Michael Buesch rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); 345e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 346e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) { 347eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch struct ieee80211_cts *cts; 348eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch 349eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch if (b43_is_old_txhdr_format(dev)) { 350eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch cts = (struct ieee80211_cts *) 351eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch (txhdr->old_format.rts_frame); 352eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } else { 353eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch cts = (struct ieee80211_cts *) 354eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch (txhdr->new_format.rts_frame); 355eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } 35632bfd35d4b63bd63de4bb0d791ef049c3c868726Johannes Berg ieee80211_ctstoself_get(dev->wl->hw, txctl->vif, 357e4d6b7951812d98417feb10784e400e253caf633Michael Buesch fragment_data, fragment_len, 358eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch txctl, cts); 359eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_SENDCTS; 360e4d6b7951812d98417feb10784e400e253caf633Michael Buesch len = sizeof(struct ieee80211_cts); 361e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else { 362eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch struct ieee80211_rts *rts; 363eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch 364eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch if (b43_is_old_txhdr_format(dev)) { 365eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch rts = (struct ieee80211_rts *) 366eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch (txhdr->old_format.rts_frame); 367eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } else { 368eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch rts = (struct ieee80211_rts *) 369eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch (txhdr->new_format.rts_frame); 370eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } 37132bfd35d4b63bd63de4bb0d791ef049c3c868726Johannes Berg ieee80211_rts_get(dev->wl->hw, txctl->vif, 372eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch fragment_data, fragment_len, 373eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch txctl, rts); 374eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch mac_ctl |= B43_TXH_MAC_SENDRTS; 375e4d6b7951812d98417feb10784e400e253caf633Michael Buesch len = sizeof(struct ieee80211_rts); 376e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 377e4d6b7951812d98417feb10784e400e253caf633Michael Buesch len += FCS_LEN; 378eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch 379eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch /* Generate the PLCP headers for the RTS/CTS frame */ 380eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch if (b43_is_old_txhdr_format(dev)) 381eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch plcp = &txhdr->old_format.rts_plcp; 382eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch else 383eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch plcp = &txhdr->new_format.rts_plcp; 384eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)plcp, 385eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch len, rts_rate); 386eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch plcp = &txhdr->rts_plcp_fb; 387eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)plcp, 388e4d6b7951812d98417feb10784e400e253caf633Michael Buesch len, rts_rate_fb); 389eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch 390eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch if (b43_is_old_txhdr_format(dev)) { 391eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch hdr = (struct ieee80211_hdr *) 392eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch (&txhdr->old_format.rts_frame); 393eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } else { 394eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch hdr = (struct ieee80211_hdr *) 395eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch (&txhdr->new_format.rts_frame); 396eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } 397e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->rts_dur_fb = hdr->duration_id; 398eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch 399e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (rts_rate_ofdm) { 400eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch extra_ft |= B43_TXH_EFT_RTS_OFDM; 401e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->phy_rate_rts = 402e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43_plcp_get_ratecode_ofdm(rts_rate); 403eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } else { 404eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch extra_ft |= B43_TXH_EFT_RTS_CCK; 405e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->phy_rate_rts = 406e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43_plcp_get_ratecode_cck(rts_rate); 407eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch } 408e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (rts_rate_fb_ofdm) 409eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch extra_ft |= B43_TXH_EFT_RTSFB_OFDM; 410eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch else 411eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch extra_ft |= B43_TXH_EFT_RTSFB_CCK; 412e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 413e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 414e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Magic cookie */ 415eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch if (b43_is_old_txhdr_format(dev)) 416eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch txhdr->old_format.cookie = cpu_to_le16(cookie); 417eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch else 418eb189d8bc9824bcb2187ffdab27d77ab469264c3Michael Buesch txhdr->new_format.cookie = cpu_to_le16(cookie); 419e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 420e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Apply the bitfields */ 421e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->mac_ctl = cpu_to_le32(mac_ctl); 422e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->phy_ctl = cpu_to_le16(phy_ctl); 423e4d6b7951812d98417feb10784e400e253caf633Michael Buesch txhdr->extra_ft = extra_ft; 424e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 42509552ccd8277e6382097e93a40f7311a09449367Michael Buesch return 0; 426e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 427e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 428e4d6b7951812d98417feb10784e400e253caf633Michael Bueschstatic s8 b43_rssi_postprocess(struct b43_wldev *dev, 429e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u8 in_rssi, int ofdm, 430e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int adjust_2053, int adjust_2050) 431e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 432e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct b43_phy *phy = &dev->phy; 433e4d6b7951812d98417feb10784e400e253caf633Michael Buesch s32 tmp; 434e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 435e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (phy->radio_ver) { 436e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x2050: 437e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (ofdm) { 438e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = in_rssi; 439e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (tmp > 127) 440e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 256; 441e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp *= 73; 442e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp /= 64; 443e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (adjust_2050) 444e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp += 25; 445e4d6b7951812d98417feb10784e400e253caf633Michael Buesch else 446e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 3; 447e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else { 44895de2841aad971867851b59c0c5253ecc2e19832Larry Finger if (dev->dev->bus->sprom. 449e4d6b7951812d98417feb10784e400e253caf633Michael Buesch boardflags_lo & B43_BFL_RSSI) { 450e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (in_rssi > 63) 451e4d6b7951812d98417feb10784e400e253caf633Michael Buesch in_rssi = 63; 452e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = phy->nrssi_lt[in_rssi]; 453e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = 31 - tmp; 454e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp *= -131; 455e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp /= 128; 456e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 57; 457e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else { 458e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = in_rssi; 459e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = 31 - tmp; 460e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp *= -149; 461e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp /= 128; 462e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 68; 463e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 464e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (phy->type == B43_PHYTYPE_G && adjust_2050) 465e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp += 25; 466e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 467e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 468e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case 0x2060: 469e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (in_rssi > 127) 470e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = in_rssi - 256; 471e4d6b7951812d98417feb10784e400e253caf633Michael Buesch else 472e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = in_rssi; 473e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 474e4d6b7951812d98417feb10784e400e253caf633Michael Buesch default: 475e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp = in_rssi; 476e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 11; 477e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp *= 103; 478e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp /= 64; 479e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (adjust_2053) 480e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 109; 481e4d6b7951812d98417feb10784e400e253caf633Michael Buesch else 482e4d6b7951812d98417feb10784e400e253caf633Michael Buesch tmp -= 83; 483e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 484e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 485e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return (s8) tmp; 486e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 487e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 488e4d6b7951812d98417feb10784e400e253caf633Michael Buesch//TODO 489e4d6b7951812d98417feb10784e400e253caf633Michael Buesch#if 0 490e4d6b7951812d98417feb10784e400e253caf633Michael Bueschstatic s8 b43_rssinoise_postprocess(struct b43_wldev *dev, u8 in_rssi) 491e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 492e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct b43_phy *phy = &dev->phy; 493e4d6b7951812d98417feb10784e400e253caf633Michael Buesch s8 ret; 494e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 495e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (phy->type == B43_PHYTYPE_A) { 496e4d6b7951812d98417feb10784e400e253caf633Michael Buesch //TODO: Incomplete specs. 497e4d6b7951812d98417feb10784e400e253caf633Michael Buesch ret = 0; 498e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } else 499e4d6b7951812d98417feb10784e400e253caf633Michael Buesch ret = b43_rssi_postprocess(dev, in_rssi, 0, 1, 1); 500e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 501e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return ret; 502e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 503e4d6b7951812d98417feb10784e400e253caf633Michael Buesch#endif 504e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 505e4d6b7951812d98417feb10784e400e253caf633Michael Bueschvoid b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) 506e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 507e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct ieee80211_rx_status status; 508e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct b43_plcp_hdr6 *plcp; 509e4d6b7951812d98417feb10784e400e253caf633Michael Buesch struct ieee80211_hdr *wlhdr; 510e4d6b7951812d98417feb10784e400e253caf633Michael Buesch const struct b43_rxhdr_fw4 *rxhdr = _rxhdr; 511e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u16 fctl; 512e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u16 phystat0, phystat3, chanstat, mactime; 513e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u32 macstat; 514e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u16 chanid; 5158318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg u16 phytype; 516e4d6b7951812d98417feb10784e400e253caf633Michael Buesch u8 jssi; 517e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int padding; 518e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 519e4d6b7951812d98417feb10784e400e253caf633Michael Buesch memset(&status, 0, sizeof(status)); 520e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 521e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Get metadata about the frame from the header. */ 522e4d6b7951812d98417feb10784e400e253caf633Michael Buesch phystat0 = le16_to_cpu(rxhdr->phy_status0); 523e4d6b7951812d98417feb10784e400e253caf633Michael Buesch phystat3 = le16_to_cpu(rxhdr->phy_status3); 524e4d6b7951812d98417feb10784e400e253caf633Michael Buesch jssi = rxhdr->jssi; 525e4d6b7951812d98417feb10784e400e253caf633Michael Buesch macstat = le32_to_cpu(rxhdr->mac_status); 526e4d6b7951812d98417feb10784e400e253caf633Michael Buesch mactime = le16_to_cpu(rxhdr->mac_time); 527e4d6b7951812d98417feb10784e400e253caf633Michael Buesch chanstat = le16_to_cpu(rxhdr->channel); 5288318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg phytype = chanstat & B43_RX_CHAN_PHYTYPE; 529e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 530e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (macstat & B43_RX_MAC_FCSERR) 531e4d6b7951812d98417feb10784e400e253caf633Michael Buesch dev->wl->ieee_stats.dot11FCSErrorCount++; 532e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (macstat & B43_RX_MAC_DECERR) { 533e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Decryption with the given key failed. 534e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * Drop the packet. We also won't be able to decrypt it with 535e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * the key in software. */ 536e4d6b7951812d98417feb10784e400e253caf633Michael Buesch goto drop; 537e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 538e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 539e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* Skip PLCP and padding */ 540e4d6b7951812d98417feb10784e400e253caf633Michael Buesch padding = (macstat & B43_RX_MAC_PADDING) ? 2 : 0; 541e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (unlikely(skb->len < (sizeof(struct b43_plcp_hdr6) + padding))) { 542e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43dbg(dev->wl, "RX: Packet size underrun (1)\n"); 543e4d6b7951812d98417feb10784e400e253caf633Michael Buesch goto drop; 544e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 545e4d6b7951812d98417feb10784e400e253caf633Michael Buesch plcp = (struct b43_plcp_hdr6 *)(skb->data + padding); 546e4d6b7951812d98417feb10784e400e253caf633Michael Buesch skb_pull(skb, sizeof(struct b43_plcp_hdr6) + padding); 547e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* The skb contains the Wireless Header + payload data now */ 548e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (unlikely(skb->len < (2 + 2 + 6 /*minimum hdr */ + FCS_LEN))) { 549e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43dbg(dev->wl, "RX: Packet size underrun (2)\n"); 550e4d6b7951812d98417feb10784e400e253caf633Michael Buesch goto drop; 551e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 552e4d6b7951812d98417feb10784e400e253caf633Michael Buesch wlhdr = (struct ieee80211_hdr *)(skb->data); 553e4d6b7951812d98417feb10784e400e253caf633Michael Buesch fctl = le16_to_cpu(wlhdr->frame_control); 554e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 555e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (macstat & B43_RX_MAC_DEC) { 556e4d6b7951812d98417feb10784e400e253caf633Michael Buesch unsigned int keyidx; 557e4d6b7951812d98417feb10784e400e253caf633Michael Buesch int wlhdr_len; 558e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 559e4d6b7951812d98417feb10784e400e253caf633Michael Buesch keyidx = ((macstat & B43_RX_MAC_KEYIDX) 560e4d6b7951812d98417feb10784e400e253caf633Michael Buesch >> B43_RX_MAC_KEYIDX_SHIFT); 561e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* We must adjust the key index here. We want the "physical" 562e4d6b7951812d98417feb10784e400e253caf633Michael Buesch * key index, but the ucode passed it slightly different. 563e4d6b7951812d98417feb10784e400e253caf633Michael Buesch */ 564e4d6b7951812d98417feb10784e400e253caf633Michael Buesch keyidx = b43_kidx_to_raw(dev, keyidx); 565e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(keyidx >= dev->max_nr_keys); 566e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 567e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (dev->key[keyidx].algorithm != B43_SEC_ALGO_NONE) { 568e4d6b7951812d98417feb10784e400e253caf633Michael Buesch wlhdr_len = ieee80211_get_hdrlen(fctl); 569e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (unlikely(skb->len < (wlhdr_len + 3))) { 570e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43dbg(dev->wl, 571e4d6b7951812d98417feb10784e400e253caf633Michael Buesch "RX: Packet size underrun (3)\n"); 572e4d6b7951812d98417feb10784e400e253caf633Michael Buesch goto drop; 573e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 574e4d6b7951812d98417feb10784e400e253caf633Michael Buesch status.flag |= RX_FLAG_DECRYPTED; 575e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 576e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 577e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 578e4d6b7951812d98417feb10784e400e253caf633Michael Buesch status.ssi = b43_rssi_postprocess(dev, jssi, 579e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (phystat0 & B43_RX_PHYST0_OFDM), 580e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (phystat0 & B43_RX_PHYST0_GAINCTL), 581e4d6b7951812d98417feb10784e400e253caf633Michael Buesch (phystat3 & B43_RX_PHYST3_TRSTATE)); 582e4d6b7951812d98417feb10784e400e253caf633Michael Buesch status.noise = dev->stats.link_noise; 583e4d6b7951812d98417feb10784e400e253caf633Michael Buesch /* the next line looks wrong, but is what mac80211 wants */ 584e4d6b7951812d98417feb10784e400e253caf633Michael Buesch status.signal = (jssi * 100) / B43_RX_MAX_SSI; 585e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (phystat0 & B43_RX_PHYST0_OFDM) 5868318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp, 5878318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg phytype == B43_PHYTYPE_A); 588e4d6b7951812d98417feb10784e400e253caf633Michael Buesch else 5898318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.rate_idx = b43_plcp_get_bitrate_idx_cck(plcp); 590e4d6b7951812d98417feb10784e400e253caf633Michael Buesch status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT); 591c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville 592c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville /* 593d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg * All frames on monitor interfaces and beacons always need a full 594d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg * 64-bit timestamp. Monitor interfaces need it for diagnostic 595d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg * purposes and beacons for IBSS merging. 596d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg * This code assumes we get to process the packet within 16 bits 597d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg * of timestamp, i.e. about 65 milliseconds after the PHY received 598d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg * the first symbol. 599c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville */ 600d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg if (((fctl & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) 601d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg == (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON)) || 602d007b7f42e2a3a2b95ef43e8cc1a3dfe66b19736Johannes Berg dev->wl->radiotap_enabled) { 603c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville u16 low_mactime_now; 604c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville 605c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville b43_tsf_read(dev, &status.mactime); 606c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville low_mactime_now = status.mactime; 607c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville status.mactime = status.mactime & ~0xFFFFULL; 608c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville status.mactime += mactime; 609c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville if (low_mactime_now <= mactime) 610c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville status.mactime -= 0x10000; 611c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville status.flag |= RX_FLAG_TSFT; 612c0ddd04d55e0a4d1506b6b8a4eb9e2b62f3aa41dJohn W. Linville } 613e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 614e4d6b7951812d98417feb10784e400e253caf633Michael Buesch chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT; 615e4d6b7951812d98417feb10784e400e253caf633Michael Buesch switch (chanstat & B43_RX_CHAN_PHYTYPE) { 616e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_PHYTYPE_A: 6178318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.band = IEEE80211_BAND_5GHZ; 618d987160b710c98997015832422a05e18d9f0f925Michael Buesch B43_WARN_ON(1); 619d987160b710c98997015832422a05e18d9f0f925Michael Buesch /* FIXME: We don't really know which value the "chanid" contains. 620d987160b710c98997015832422a05e18d9f0f925Michael Buesch * So the following assignment might be wrong. */ 6218318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.freq = b43_channel_to_freq_5ghz(chanid); 622e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 623e4d6b7951812d98417feb10784e400e253caf633Michael Buesch case B43_PHYTYPE_G: 6248318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.band = IEEE80211_BAND_2GHZ; 625d987160b710c98997015832422a05e18d9f0f925Michael Buesch /* chanid is the radio channel cookie value as used 626d987160b710c98997015832422a05e18d9f0f925Michael Buesch * to tune the radio. */ 627e4d6b7951812d98417feb10784e400e253caf633Michael Buesch status.freq = chanid + 2400; 628d987160b710c98997015832422a05e18d9f0f925Michael Buesch break; 629d987160b710c98997015832422a05e18d9f0f925Michael Buesch case B43_PHYTYPE_N: 630d987160b710c98997015832422a05e18d9f0f925Michael Buesch /* chanid is the SHM channel cookie. Which is the plain 631d987160b710c98997015832422a05e18d9f0f925Michael Buesch * channel number in b43. */ 6328318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg if (chanstat & B43_RX_CHAN_5GHZ) { 6338318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.band = IEEE80211_BAND_5GHZ; 6348318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.freq = b43_freq_to_channel_5ghz(chanid); 6358318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } else { 6368318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.band = IEEE80211_BAND_2GHZ; 6378318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg status.freq = b43_freq_to_channel_2ghz(chanid); 6388318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 639e4d6b7951812d98417feb10784e400e253caf633Michael Buesch break; 640e4d6b7951812d98417feb10784e400e253caf633Michael Buesch default: 641e4d6b7951812d98417feb10784e400e253caf633Michael Buesch B43_WARN_ON(1); 642d987160b710c98997015832422a05e18d9f0f925Michael Buesch goto drop; 643e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 644e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 645e4d6b7951812d98417feb10784e400e253caf633Michael Buesch dev->stats.last_rx = jiffies; 646e4d6b7951812d98417feb10784e400e253caf633Michael Buesch ieee80211_rx_irqsafe(dev->wl->hw, skb, &status); 647e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 648e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return; 649e4d6b7951812d98417feb10784e400e253caf633Michael Bueschdrop: 650e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43dbg(dev->wl, "RX: Packet dropped\n"); 651e4d6b7951812d98417feb10784e400e253caf633Michael Buesch dev_kfree_skb_any(skb); 652e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 653e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 654e4d6b7951812d98417feb10784e400e253caf633Michael Bueschvoid b43_handle_txstatus(struct b43_wldev *dev, 655e4d6b7951812d98417feb10784e400e253caf633Michael Buesch const struct b43_txstatus *status) 656e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 657e4d6b7951812d98417feb10784e400e253caf633Michael Buesch b43_debugfs_log_txstat(dev, status); 658e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 659e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (status->intermediate) 660e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return; 661e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (status->for_ampdu) 662e4d6b7951812d98417feb10784e400e253caf633Michael Buesch return; 663e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (!status->acked) 664e4d6b7951812d98417feb10784e400e253caf633Michael Buesch dev->wl->ieee_stats.dot11ACKFailureCount++; 665e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (status->rts_count) { 666e4d6b7951812d98417feb10784e400e253caf633Michael Buesch if (status->rts_count == 0xF) //FIXME 667e4d6b7951812d98417feb10784e400e253caf633Michael Buesch dev->wl->ieee_stats.dot11RTSFailureCount++; 668e4d6b7951812d98417feb10784e400e253caf633Michael Buesch else 669e4d6b7951812d98417feb10784e400e253caf633Michael Buesch dev->wl->ieee_stats.dot11RTSSuccessCount++; 670e4d6b7951812d98417feb10784e400e253caf633Michael Buesch } 671e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 6725100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch if (b43_using_pio_transfers(dev)) 6735100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch b43_pio_handle_txstatus(dev, status); 6745100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch else 6755100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch b43_dma_handle_txstatus(dev, status); 676e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 677e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 6785100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch/* Fill out the mac80211 TXstatus report based on the b43-specific 6795100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch * txstatus report data. This returns a boolean whether the frame was 6805100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch * successfully transmitted. */ 6815100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Bueschbool b43_fill_txstatus_report(struct ieee80211_tx_status *report, 6825100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch const struct b43_txstatus *status) 683e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 6845100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch bool frame_success = 1; 6855100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch 6865100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch if (status->acked) { 6875100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch /* The frame was ACKed. */ 6885100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch report->flags |= IEEE80211_TX_STATUS_ACK; 6895100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch } else { 6905100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch /* The frame was not ACKed... */ 6915100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch if (!(report->control.flags & IEEE80211_TXCTL_NO_ACK)) { 6925100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch /* ...but we expected an ACK. */ 6935100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch frame_success = 0; 6945100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch report->excessive_retries = 1; 6955100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch } 6965100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch } 6975100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch if (status->frame_count == 0) { 6985100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch /* The frame was not transmitted at all. */ 6995100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch report->retry_count = 0; 7005100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch } else 7015100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch report->retry_count = status->frame_count - 1; 7025100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch 7035100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch return frame_success; 704e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 705e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 706e4d6b7951812d98417feb10784e400e253caf633Michael Buesch/* Stop any TX operation on the device (suspend the hardware queues) */ 707e4d6b7951812d98417feb10784e400e253caf633Michael Bueschvoid b43_tx_suspend(struct b43_wldev *dev) 708e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 7095100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch if (b43_using_pio_transfers(dev)) 7105100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch b43_pio_tx_suspend(dev); 7115100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch else 7125100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch b43_dma_tx_suspend(dev); 713e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 714e4d6b7951812d98417feb10784e400e253caf633Michael Buesch 715e4d6b7951812d98417feb10784e400e253caf633Michael Buesch/* Resume any TX operation on the device (resume the hardware queues) */ 716e4d6b7951812d98417feb10784e400e253caf633Michael Bueschvoid b43_tx_resume(struct b43_wldev *dev) 717e4d6b7951812d98417feb10784e400e253caf633Michael Buesch{ 7185100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch if (b43_using_pio_transfers(dev)) 7195100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch b43_pio_tx_resume(dev); 7205100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch else 7215100d5ac81b9330dc57e35adbe50923ba6107b8fMichael Buesch b43_dma_tx_resume(dev); 722e4d6b7951812d98417feb10784e400e253caf633Michael Buesch} 723