Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * File: rxtx.c |
| 20 | * |
| 21 | * Purpose: handle WMAC/802.3/802.11 rx & tx functions |
| 22 | * |
| 23 | * Author: Lyndon Chen |
| 24 | * |
| 25 | * Date: May 20, 2003 |
| 26 | * |
| 27 | * Functions: |
Malcolm Priestley | 9ec7f2d | 2014-07-10 19:56:15 +0100 | [diff] [blame] | 28 | * vnt_generate_tx_parameter - Generate tx dma required parameter. |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 29 | * vnt_get_duration_le - get tx data required duration |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 30 | * vnt_get_rtscts_duration_le- get rtx/cts required duration |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 31 | * vnt_get_rtscts_rsvtime_le- get rts/cts reserved time |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 32 | * vnt_get_rsvtime- get frame reserved time |
Malcolm Priestley | 4f31668 | 2014-07-10 19:56:17 +0100 | [diff] [blame] | 33 | * vnt_fill_cts_head- fulfill CTS ctl header |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 34 | * |
| 35 | * Revision History: |
| 36 | * |
| 37 | */ |
| 38 | |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 39 | #include "device.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 40 | #include "rxtx.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 41 | #include "card.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 42 | #include "mac.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 43 | #include "rf.h" |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 44 | #include "usbpipe.h" |
Jim Lieb | 9d26d60 | 2009-08-12 14:54:08 -0700 | [diff] [blame] | 45 | |
Malcolm Priestley | 1a4d4509 | 2014-07-11 01:08:25 +0100 | [diff] [blame] | 46 | static const u16 vnt_time_stampoff[2][MAX_RATE] = { |
| 47 | {384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23},/* Long Preamble */ |
| 48 | {384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23},/* Short Preamble */ |
| 49 | }; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 50 | |
Malcolm Priestley | e3f3187 | 2014-07-11 01:08:26 +0100 | [diff] [blame] | 51 | static const u16 vnt_fb_opt0[2][5] = { |
| 52 | {RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, /* fallback_rate0 */ |
| 53 | {RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, /* fallback_rate1 */ |
| 54 | }; |
| 55 | |
Malcolm Priestley | 2331ba4 | 2014-07-11 01:08:27 +0100 | [diff] [blame] | 56 | static const u16 vnt_fb_opt1[2][5] = { |
| 57 | {RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, /* fallback_rate0 */ |
| 58 | {RATE_6M , RATE_6M, RATE_12M, RATE_12M, RATE_18M}, /* fallback_rate1 */ |
| 59 | }; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 60 | |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 61 | #define RTSDUR_BB 0 |
| 62 | #define RTSDUR_BA 1 |
| 63 | #define RTSDUR_AA 2 |
| 64 | #define CTSDUR_BA 3 |
| 65 | #define RTSDUR_BA_F0 4 |
| 66 | #define RTSDUR_AA_F0 5 |
| 67 | #define RTSDUR_BA_F1 6 |
| 68 | #define RTSDUR_AA_F1 7 |
| 69 | #define CTSDUR_BA_F0 8 |
| 70 | #define CTSDUR_BA_F1 9 |
| 71 | #define DATADUR_B 10 |
| 72 | #define DATADUR_A 11 |
| 73 | #define DATADUR_A_F0 12 |
| 74 | #define DATADUR_A_F1 13 |
| 75 | |
Malcolm Priestley | aceaf01 | 2013-11-26 19:06:35 +0000 | [diff] [blame] | 76 | static struct vnt_usb_send_context |
Malcolm Priestley | a032b16 | 2014-07-11 01:08:28 +0100 | [diff] [blame] | 77 | *vnt_get_free_context(struct vnt_private *priv) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 78 | { |
Malcolm Priestley | b89f3b9 | 2013-11-26 19:16:59 +0000 | [diff] [blame] | 79 | struct vnt_usb_send_context *context = NULL; |
Malcolm Priestley | d56131d | 2013-01-17 23:15:22 +0000 | [diff] [blame] | 80 | int ii; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 81 | |
Malcolm Priestley | 604631f | 2014-07-11 01:08:31 +0100 | [diff] [blame] | 82 | dev_dbg(&priv->usb->dev, "%s\n", __func__); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 83 | |
Malcolm Priestley | 03b7e35 | 2014-07-19 12:30:04 +0100 | [diff] [blame] | 84 | for (ii = 0; ii < priv->num_tx_context; ii++) { |
Malcolm Priestley | f7e4a8f | 2014-07-18 06:36:16 +0100 | [diff] [blame] | 85 | if (!priv->tx_context[ii]) |
Malcolm Priestley | b89f3b9 | 2013-11-26 19:16:59 +0000 | [diff] [blame] | 86 | return NULL; |
| 87 | |
Malcolm Priestley | f7e4a8f | 2014-07-18 06:36:16 +0100 | [diff] [blame] | 88 | context = priv->tx_context[ii]; |
Malcolm Priestley | 30a05b3 | 2014-05-15 22:49:11 +0100 | [diff] [blame] | 89 | if (context->in_use == false) { |
| 90 | context->in_use = true; |
| 91 | memset(context->data, 0, |
Malcolm Priestley | b89f3b9 | 2013-11-26 19:16:59 +0000 | [diff] [blame] | 92 | MAX_TOTAL_SIZE_WITH_ALL_HEADERS); |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 93 | |
| 94 | context->hdr = NULL; |
| 95 | |
Malcolm Priestley | b89f3b9 | 2013-11-26 19:16:59 +0000 | [diff] [blame] | 96 | return context; |
| 97 | } |
| 98 | } |
| 99 | |
Malcolm Priestley | 03b7e35 | 2014-07-19 12:30:04 +0100 | [diff] [blame] | 100 | if (ii == priv->num_tx_context) |
Malcolm Priestley | 604631f | 2014-07-11 01:08:31 +0100 | [diff] [blame] | 101 | dev_dbg(&priv->usb->dev, "%s No Free Tx Context\n", __func__); |
Malcolm Priestley | aceaf01 | 2013-11-26 19:06:35 +0000 | [diff] [blame] | 102 | |
Malcolm Priestley | 5c85138 | 2013-11-26 19:12:38 +0000 | [diff] [blame] | 103 | return NULL; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 104 | } |
| 105 | |
Malcolm Priestley | dab085b | 2014-03-18 19:25:03 +0000 | [diff] [blame] | 106 | static __le16 vnt_time_stamp_off(struct vnt_private *priv, u16 rate) |
Malcolm Priestley | f115e76 | 2013-08-23 11:48:46 +0100 | [diff] [blame] | 107 | { |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 108 | return cpu_to_le16(vnt_time_stampoff[priv->preamble_type % 2] |
Malcolm Priestley | f115e76 | 2013-08-23 11:48:46 +0100 | [diff] [blame] | 109 | [rate % MAX_RATE]); |
| 110 | } |
| 111 | |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 112 | static u32 vnt_get_rsvtime(struct vnt_private *priv, u8 pkt_type, |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 113 | u32 frame_length, u16 rate, int need_ack) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 114 | { |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 115 | u32 data_time, ack_time; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 116 | |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 117 | data_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 118 | frame_length, rate); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 119 | |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 120 | if (pkt_type == PK_TYPE_11B) |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 121 | ack_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 122 | 14, (u16)priv->top_cck_basic_rate); |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 123 | else |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 124 | ack_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 125 | 14, (u16)priv->top_ofdm_basic_rate); |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 126 | |
| 127 | if (need_ack) |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 128 | return data_time + priv->sifs + ack_time; |
Malcolm Priestley | 3fd5620 | 2014-01-08 20:08:42 +0000 | [diff] [blame] | 129 | |
| 130 | return data_time; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 131 | } |
| 132 | |
Malcolm Priestley | 2075f65 | 2014-03-18 19:25:07 +0000 | [diff] [blame] | 133 | static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type, |
Malcolm Priestley | 9c3806d | 2013-08-23 11:32:26 +0100 | [diff] [blame] | 134 | u32 frame_length, u16 rate, int need_ack) |
| 135 | { |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 136 | return cpu_to_le16((u16)vnt_get_rsvtime(priv, pkt_type, |
Malcolm Priestley | 9c3806d | 2013-08-23 11:32:26 +0100 | [diff] [blame] | 137 | frame_length, rate, need_ack)); |
| 138 | } |
| 139 | |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 140 | static __le16 vnt_get_rtscts_rsvtime_le(struct vnt_private *priv, |
Malcolm Priestley | 3b6cee7be | 2014-05-25 21:36:27 +0100 | [diff] [blame] | 141 | u8 rsv_type, u8 pkt_type, u32 frame_length, u16 current_rate) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 142 | { |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 143 | u32 rrv_time, rts_time, cts_time, ack_time, data_time; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 144 | |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 145 | rrv_time = rts_time = cts_time = ack_time = data_time = 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 146 | |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 147 | data_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | 3b6cee7be | 2014-05-25 21:36:27 +0100 | [diff] [blame] | 148 | frame_length, current_rate); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 149 | |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 150 | if (rsv_type == 0) { |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 151 | rts_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 152 | pkt_type, 20, priv->top_cck_basic_rate); |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 153 | cts_time = ack_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 154 | pkt_type, 14, priv->top_cck_basic_rate); |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 155 | } else if (rsv_type == 1) { |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 156 | rts_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 157 | pkt_type, 20, priv->top_cck_basic_rate); |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 158 | cts_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 159 | 14, priv->top_cck_basic_rate); |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 160 | ack_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 161 | 14, priv->top_ofdm_basic_rate); |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 162 | } else if (rsv_type == 2) { |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 163 | rts_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 164 | 20, priv->top_ofdm_basic_rate); |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 165 | cts_time = ack_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 166 | pkt_type, 14, priv->top_ofdm_basic_rate); |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 167 | } else if (rsv_type == 3) { |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 168 | cts_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 169 | 14, priv->top_cck_basic_rate); |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 170 | ack_time = vnt_get_frame_time(priv->preamble_type, pkt_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 171 | 14, priv->top_ofdm_basic_rate); |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 172 | |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 173 | rrv_time = cts_time + ack_time + data_time + 2 * priv->sifs; |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 174 | |
Malcolm Priestley | 2033801 | 2014-03-18 19:25:08 +0000 | [diff] [blame] | 175 | return cpu_to_le16((u16)rrv_time); |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 176 | } |
| 177 | |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 178 | rrv_time = rts_time + cts_time + ack_time + data_time + 3 * priv->sifs; |
Malcolm Priestley | 342e2e2 | 2014-01-08 20:13:29 +0000 | [diff] [blame] | 179 | |
| 180 | return cpu_to_le16((u16)rrv_time); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 181 | } |
| 182 | |
Malcolm Priestley | 0871dc6 | 2014-07-20 15:33:30 +0100 | [diff] [blame] | 183 | static __le16 vnt_get_duration_le(struct vnt_private *priv, |
Malcolm Priestley | a4c2a8a | 2014-07-11 01:08:21 +0100 | [diff] [blame] | 184 | u8 pkt_type, int need_ack) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 185 | { |
Malcolm Priestley | a4c2a8a | 2014-07-11 01:08:21 +0100 | [diff] [blame] | 186 | u32 ack_time = 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 187 | |
Malcolm Priestley | a4c2a8a | 2014-07-11 01:08:21 +0100 | [diff] [blame] | 188 | if (need_ack) { |
| 189 | if (pkt_type == PK_TYPE_11B) |
Malcolm Priestley | 0871dc6 | 2014-07-20 15:33:30 +0100 | [diff] [blame] | 190 | ack_time = vnt_get_frame_time(priv->preamble_type, |
| 191 | pkt_type, 14, priv->top_cck_basic_rate); |
Malcolm Priestley | b02ccd5 | 2013-08-13 19:59:31 +0100 | [diff] [blame] | 192 | else |
Malcolm Priestley | 0871dc6 | 2014-07-20 15:33:30 +0100 | [diff] [blame] | 193 | ack_time = vnt_get_frame_time(priv->preamble_type, |
| 194 | pkt_type, 14, priv->top_ofdm_basic_rate); |
Malcolm Priestley | a4c2a8a | 2014-07-11 01:08:21 +0100 | [diff] [blame] | 195 | |
Malcolm Priestley | 0871dc6 | 2014-07-20 15:33:30 +0100 | [diff] [blame] | 196 | return cpu_to_le16((u16)(priv->sifs + ack_time)); |
Malcolm Priestley | b02ccd5 | 2013-08-13 19:59:31 +0100 | [diff] [blame] | 197 | } |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 198 | |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 199 | return 0; |
| 200 | } |
| 201 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 202 | static __le16 vnt_get_rtscts_duration_le(struct vnt_usb_send_context *context, |
| 203 | u8 dur_type, u8 pkt_type, u16 rate) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 204 | { |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 205 | struct vnt_private *priv = context->priv; |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 206 | u32 cts_time = 0, dur_time = 0; |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 207 | u32 frame_length = context->frame_len; |
| 208 | u8 need_ack = context->need_ack; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 209 | |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 210 | switch (dur_type) { |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 211 | case RTSDUR_BB: |
| 212 | case RTSDUR_BA: |
| 213 | case RTSDUR_BA_F0: |
| 214 | case RTSDUR_BA_F1: |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 215 | cts_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 216 | pkt_type, 14, priv->top_cck_basic_rate); |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 217 | dur_time = cts_time + 2 * priv->sifs + |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 218 | vnt_get_rsvtime(priv, pkt_type, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 219 | frame_length, rate, need_ack); |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 220 | break; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 221 | |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 222 | case RTSDUR_AA: |
| 223 | case RTSDUR_AA_F0: |
| 224 | case RTSDUR_AA_F1: |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 225 | cts_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 226 | pkt_type, 14, priv->top_ofdm_basic_rate); |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 227 | dur_time = cts_time + 2 * priv->sifs + |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 228 | vnt_get_rsvtime(priv, pkt_type, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 229 | frame_length, rate, need_ack); |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 230 | break; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 231 | |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 232 | case CTSDUR_BA: |
| 233 | case CTSDUR_BA_F0: |
| 234 | case CTSDUR_BA_F1: |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 235 | dur_time = priv->sifs + vnt_get_rsvtime(priv, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 236 | pkt_type, frame_length, rate, need_ack); |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 237 | break; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 238 | |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 239 | default: |
| 240 | break; |
| 241 | } |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 242 | |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 243 | return cpu_to_le16((u16)dur_time); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 244 | } |
| 245 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 246 | static u16 vnt_mac_hdr_pos(struct vnt_usb_send_context *tx_context, |
| 247 | struct ieee80211_hdr *hdr) |
| 248 | { |
| 249 | u8 *head = tx_context->data + offsetof(struct vnt_tx_buffer, fifo_head); |
| 250 | u8 *hdr_pos = (u8 *)hdr; |
| 251 | |
| 252 | tx_context->hdr = hdr; |
| 253 | if (!tx_context->hdr) |
| 254 | return 0; |
| 255 | |
| 256 | return (u16)(hdr_pos - head); |
| 257 | } |
| 258 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 259 | static u16 vnt_rxtx_datahead_g(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 260 | struct vnt_tx_datahead_g *buf) |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 261 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 262 | |
| 263 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 264 | struct ieee80211_hdr *hdr = |
| 265 | (struct ieee80211_hdr *)tx_context->skb->data; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 266 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 267 | u16 rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 268 | u8 need_ack = tx_context->need_ack; |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 269 | |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 270 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 271 | vnt_get_phy_field(priv, frame_len, rate, tx_context->pkt_type, &buf->a); |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 272 | vnt_get_phy_field(priv, frame_len, priv->top_cck_basic_rate, |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 273 | PK_TYPE_11B, &buf->b); |
| 274 | |
| 275 | /* Get Duration and TimeStamp */ |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 276 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
| 277 | __le16 dur = cpu_to_le16(priv->current_aid | BIT(14) | BIT(15)); |
| 278 | |
| 279 | buf->duration_a = dur; |
| 280 | buf->duration_b = dur; |
| 281 | } else { |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 282 | buf->duration_a = vnt_get_duration_le(priv, |
| 283 | tx_context->pkt_type, need_ack); |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 284 | buf->duration_b = vnt_get_duration_le(priv, |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 285 | PK_TYPE_11B, need_ack); |
| 286 | } |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 287 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 288 | buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate); |
| 289 | buf->time_stamp_off_b = vnt_time_stamp_off(priv, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 290 | priv->top_cck_basic_rate); |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 291 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 292 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 293 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 294 | return le16_to_cpu(buf->duration_a); |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 295 | } |
| 296 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 297 | static u16 vnt_rxtx_datahead_g_fb(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 298 | struct vnt_tx_datahead_g_fb *buf) |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 299 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 300 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 301 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 302 | u16 rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 303 | u8 need_ack = tx_context->need_ack; |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 304 | |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 305 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 306 | vnt_get_phy_field(priv, frame_len, rate, tx_context->pkt_type, &buf->a); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 307 | |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 308 | vnt_get_phy_field(priv, frame_len, priv->top_cck_basic_rate, |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 309 | PK_TYPE_11B, &buf->b); |
| 310 | |
| 311 | /* Get Duration and TimeStamp */ |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 312 | buf->duration_a = vnt_get_duration_le(priv, tx_context->pkt_type, |
| 313 | need_ack); |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 314 | buf->duration_b = vnt_get_duration_le(priv, PK_TYPE_11B, need_ack); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 315 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 316 | buf->duration_a_f0 = vnt_get_duration_le(priv, tx_context->pkt_type, |
| 317 | need_ack); |
| 318 | buf->duration_a_f1 = vnt_get_duration_le(priv, tx_context->pkt_type, |
| 319 | need_ack); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 320 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 321 | buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate); |
| 322 | buf->time_stamp_off_b = vnt_time_stamp_off(priv, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 323 | priv->top_cck_basic_rate); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 324 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 325 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 326 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 327 | return le16_to_cpu(buf->duration_a); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 328 | } |
| 329 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 330 | static u16 vnt_rxtx_datahead_a_fb(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 331 | struct vnt_tx_datahead_a_fb *buf) |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 332 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 333 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 334 | u16 rate = tx_context->tx_rate; |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 335 | u8 pkt_type = tx_context->pkt_type; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 336 | u8 need_ack = tx_context->need_ack; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 337 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 338 | |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 339 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 340 | vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 341 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 342 | buf->duration = vnt_get_duration_le(priv, pkt_type, need_ack); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 343 | |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 344 | buf->duration_f0 = vnt_get_duration_le(priv, pkt_type, need_ack); |
| 345 | buf->duration_f1 = vnt_get_duration_le(priv, pkt_type, need_ack); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 346 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 347 | buf->time_stamp_off = vnt_time_stamp_off(priv, rate); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 348 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 349 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 350 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 351 | return le16_to_cpu(buf->duration); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 352 | } |
| 353 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 354 | static u16 vnt_rxtx_datahead_ab(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 355 | struct vnt_tx_datahead_ab *buf) |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 356 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 357 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 358 | struct ieee80211_hdr *hdr = |
| 359 | (struct ieee80211_hdr *)tx_context->skb->data; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 360 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 361 | u16 rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 362 | u8 need_ack = tx_context->need_ack; |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 363 | |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 364 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 365 | vnt_get_phy_field(priv, frame_len, rate, |
| 366 | tx_context->pkt_type, &buf->ab); |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 367 | |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 368 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 369 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
| 370 | __le16 dur = cpu_to_le16(priv->current_aid | BIT(14) | BIT(15)); |
| 371 | |
| 372 | buf->duration = dur; |
| 373 | } else { |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 374 | buf->duration = vnt_get_duration_le(priv, tx_context->pkt_type, |
| 375 | need_ack); |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 376 | } |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 377 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 378 | buf->time_stamp_off = vnt_time_stamp_off(priv, rate); |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 379 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 380 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 381 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 382 | return le16_to_cpu(buf->duration); |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 383 | } |
| 384 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 385 | static int vnt_fill_ieee80211_rts(struct vnt_usb_send_context *tx_context, |
| 386 | struct ieee80211_rts *rts, __le16 duration) |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 387 | { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 388 | struct ieee80211_hdr *hdr = |
| 389 | (struct ieee80211_hdr *)tx_context->skb->data; |
| 390 | |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 391 | rts->duration = duration; |
Malcolm Priestley | f4554d3 | 2014-03-22 09:01:31 +0000 | [diff] [blame] | 392 | rts->frame_control = |
| 393 | cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 394 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 395 | memcpy(rts->ra, hdr->addr1, ETH_ALEN); |
| 396 | memcpy(rts->ta, hdr->addr2, ETH_ALEN); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 397 | |
| 398 | return 0; |
| 399 | } |
| 400 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 401 | static u16 vnt_rxtx_rts_g_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 402 | struct vnt_rts_g *buf) |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 403 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 404 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 405 | u16 rts_frame_len = 20; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 406 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 407 | |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 408 | vnt_get_phy_field(priv, rts_frame_len, priv->top_cck_basic_rate, |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 409 | PK_TYPE_11B, &buf->b); |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 410 | vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate, |
| 411 | tx_context->pkt_type, &buf->a); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 412 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 413 | buf->duration_bb = vnt_get_rtscts_duration_le(tx_context, RTSDUR_BB, |
| 414 | PK_TYPE_11B, |
| 415 | priv->top_cck_basic_rate); |
| 416 | buf->duration_aa = vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA, |
| 417 | tx_context->pkt_type, |
| 418 | current_rate); |
| 419 | buf->duration_ba = vnt_get_rtscts_duration_le(tx_context, RTSDUR_BA, |
| 420 | tx_context->pkt_type, |
| 421 | current_rate); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 422 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 423 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 424 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 425 | return vnt_rxtx_datahead_g(tx_context, &buf->data_head); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 426 | } |
| 427 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 428 | static u16 vnt_rxtx_rts_g_fb_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 429 | struct vnt_rts_g_fb *buf) |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 430 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 431 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 432 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 433 | u16 rts_frame_len = 20; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 434 | |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 435 | vnt_get_phy_field(priv, rts_frame_len, priv->top_cck_basic_rate, |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 436 | PK_TYPE_11B, &buf->b); |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 437 | vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate, |
| 438 | tx_context->pkt_type, &buf->a); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 439 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 440 | buf->duration_bb = vnt_get_rtscts_duration_le(tx_context, RTSDUR_BB, |
| 441 | PK_TYPE_11B, |
| 442 | priv->top_cck_basic_rate); |
| 443 | buf->duration_aa = vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA, |
| 444 | tx_context->pkt_type, |
| 445 | current_rate); |
| 446 | buf->duration_ba = vnt_get_rtscts_duration_le(tx_context, RTSDUR_BA, |
| 447 | tx_context->pkt_type, |
| 448 | current_rate); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 449 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 450 | buf->rts_duration_ba_f0 = |
| 451 | vnt_get_rtscts_duration_le(tx_context, RTSDUR_BA_F0, |
| 452 | tx_context->pkt_type, |
| 453 | priv->tx_rate_fb0); |
| 454 | buf->rts_duration_aa_f0 = |
| 455 | vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA_F0, |
| 456 | tx_context->pkt_type, |
| 457 | priv->tx_rate_fb0); |
| 458 | buf->rts_duration_ba_f1 = |
| 459 | vnt_get_rtscts_duration_le(tx_context, RTSDUR_BA_F1, |
| 460 | tx_context->pkt_type, |
| 461 | priv->tx_rate_fb1); |
| 462 | buf->rts_duration_aa_f1 = |
| 463 | vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA_F1, |
| 464 | tx_context->pkt_type, |
| 465 | priv->tx_rate_fb1); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 466 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 467 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 468 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 469 | return vnt_rxtx_datahead_g_fb(tx_context, &buf->data_head); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 470 | } |
| 471 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 472 | static u16 vnt_rxtx_rts_ab_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 473 | struct vnt_rts_ab *buf) |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 474 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 475 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 476 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 477 | u16 rts_frame_len = 20; |
| 478 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 479 | vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate, |
| 480 | tx_context->pkt_type, &buf->ab); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 481 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 482 | buf->duration = vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA, |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 483 | tx_context->pkt_type, |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 484 | current_rate); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 485 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 486 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 487 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 488 | return vnt_rxtx_datahead_ab(tx_context, &buf->data_head); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 489 | } |
| 490 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 491 | static u16 vnt_rxtx_rts_a_fb_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 492 | struct vnt_rts_a_fb *buf) |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 493 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 494 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 495 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 496 | u16 rts_frame_len = 20; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 497 | |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 498 | vnt_get_phy_field(priv, rts_frame_len, |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 499 | priv->top_ofdm_basic_rate, tx_context->pkt_type, &buf->a); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 500 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 501 | buf->duration = vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA, |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 502 | tx_context->pkt_type, |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 503 | current_rate); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 504 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 505 | buf->rts_duration_f0 = |
| 506 | vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA_F0, |
| 507 | tx_context->pkt_type, |
| 508 | priv->tx_rate_fb0); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 509 | |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 510 | buf->rts_duration_f1 = |
| 511 | vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA_F1, |
| 512 | tx_context->pkt_type, |
| 513 | priv->tx_rate_fb1); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 514 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 515 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 516 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 517 | return vnt_rxtx_datahead_a_fb(tx_context, &buf->data_head); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 518 | } |
| 519 | |
Malcolm Priestley | 4f31668 | 2014-07-10 19:56:17 +0100 | [diff] [blame] | 520 | static u16 vnt_fill_cts_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 521 | union vnt_tx_data_head *head) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 522 | { |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 523 | struct vnt_private *priv = tx_context->priv; |
| 524 | u32 cts_frame_len = 14; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 525 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 526 | |
Malcolm Priestley | 27df3eb | 2013-08-27 11:48:34 +0100 | [diff] [blame] | 527 | if (!head) |
Malcolm Priestley | 0a0f4b6 | 2013-10-01 15:50:24 +0100 | [diff] [blame] | 528 | return 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 529 | |
Malcolm Priestley | ce7b0db | 2014-07-10 19:56:03 +0100 | [diff] [blame] | 530 | if (tx_context->fb_option) { |
Malcolm Priestley | c921cc8 | 2013-08-20 20:47:49 +0100 | [diff] [blame] | 531 | /* Auto Fall back */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 532 | struct vnt_cts_fb *buf = &head->cts_g_fb; |
Malcolm Priestley | aed387c | 2013-08-20 22:52:30 +0100 | [diff] [blame] | 533 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 534 | vnt_get_phy_field(priv, cts_frame_len, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 535 | priv->top_cck_basic_rate, PK_TYPE_11B, &buf->b); |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 536 | buf->duration_ba = |
| 537 | vnt_get_rtscts_duration_le(tx_context, CTSDUR_BA, |
| 538 | tx_context->pkt_type, |
| 539 | current_rate); |
Malcolm Priestley | e34f9db | 2013-08-13 20:17:11 +0100 | [diff] [blame] | 540 | /* Get CTSDuration_ba_f0 */ |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 541 | buf->cts_duration_ba_f0 = |
| 542 | vnt_get_rtscts_duration_le(tx_context, CTSDUR_BA_F0, |
| 543 | tx_context->pkt_type, |
| 544 | priv->tx_rate_fb0); |
Malcolm Priestley | e34f9db | 2013-08-13 20:17:11 +0100 | [diff] [blame] | 545 | /* Get CTSDuration_ba_f1 */ |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 546 | buf->cts_duration_ba_f1 = |
| 547 | vnt_get_rtscts_duration_le(tx_context, CTSDUR_BA_F1, |
| 548 | tx_context->pkt_type, |
| 549 | priv->tx_rate_fb1); |
Malcolm Priestley | 14840cd | 2013-08-05 22:12:42 +0100 | [diff] [blame] | 550 | /* Get CTS Frame body */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 551 | buf->data.duration = buf->duration_ba; |
| 552 | buf->data.frame_control = |
Malcolm Priestley | d9560ae | 2014-03-22 09:01:32 +0000 | [diff] [blame] | 553 | cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); |
| 554 | |
Malcolm Priestley | ebf9b31 | 2014-07-19 12:30:10 +0100 | [diff] [blame] | 555 | memcpy(buf->data.ra, priv->current_net_addr, ETH_ALEN); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 556 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 557 | return vnt_rxtx_datahead_g_fb(tx_context, &buf->data_head); |
Malcolm Priestley | c921cc8 | 2013-08-20 20:47:49 +0100 | [diff] [blame] | 558 | } else { |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 559 | struct vnt_cts *buf = &head->cts_g; |
Malcolm Priestley | aed387c | 2013-08-20 22:52:30 +0100 | [diff] [blame] | 560 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 561 | vnt_get_phy_field(priv, cts_frame_len, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 562 | priv->top_cck_basic_rate, PK_TYPE_11B, &buf->b); |
Malcolm Priestley | e34f9db | 2013-08-13 20:17:11 +0100 | [diff] [blame] | 563 | /* Get CTSDuration_ba */ |
Malcolm Priestley | cca48e3 | 2014-07-20 15:33:35 +0100 | [diff] [blame] | 564 | buf->duration_ba = |
| 565 | vnt_get_rtscts_duration_le(tx_context, CTSDUR_BA, |
| 566 | tx_context->pkt_type, |
| 567 | current_rate); |
Malcolm Priestley | 14840cd | 2013-08-05 22:12:42 +0100 | [diff] [blame] | 568 | /*Get CTS Frame body*/ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 569 | buf->data.duration = buf->duration_ba; |
| 570 | buf->data.frame_control = |
Malcolm Priestley | d9560ae | 2014-03-22 09:01:32 +0000 | [diff] [blame] | 571 | cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); |
| 572 | |
Malcolm Priestley | ebf9b31 | 2014-07-19 12:30:10 +0100 | [diff] [blame] | 573 | memcpy(buf->data.ra, priv->current_net_addr, ETH_ALEN); |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 574 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 575 | return vnt_rxtx_datahead_g(tx_context, &buf->data_head); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 576 | } |
Malcolm Priestley | 0a0f4b6 | 2013-10-01 15:50:24 +0100 | [diff] [blame] | 577 | |
| 578 | return 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 579 | } |
| 580 | |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 581 | static u16 vnt_rxtx_rts(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 582 | union vnt_tx_head *tx_head, bool need_mic) |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 583 | { |
| 584 | struct vnt_private *priv = tx_context->priv; |
| 585 | struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts; |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 586 | union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 587 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 588 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 589 | u8 need_ack = tx_context->need_ack; |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 590 | |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 591 | buf->rts_rrv_time_aa = vnt_get_rtscts_rsvtime_le(priv, 2, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 592 | tx_context->pkt_type, frame_len, current_rate); |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 593 | buf->rts_rrv_time_ba = vnt_get_rtscts_rsvtime_le(priv, 1, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 594 | tx_context->pkt_type, frame_len, current_rate); |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 595 | buf->rts_rrv_time_bb = vnt_get_rtscts_rsvtime_le(priv, 0, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 596 | tx_context->pkt_type, frame_len, current_rate); |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 597 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 598 | buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, tx_context->pkt_type, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 599 | frame_len, current_rate, |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 600 | need_ack); |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 601 | buf->rrv_time_b = vnt_rxtx_rsvtime_le16(priv, PK_TYPE_11B, frame_len, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 602 | priv->top_cck_basic_rate, need_ack); |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 603 | |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 604 | if (need_mic) |
| 605 | head = &tx_head->tx_rts.tx.mic.head; |
| 606 | |
| 607 | if (tx_context->fb_option) |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 608 | return vnt_rxtx_rts_g_fb_head(tx_context, &head->rts_g_fb); |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 609 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 610 | return vnt_rxtx_rts_g_head(tx_context, &head->rts_g); |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 611 | } |
| 612 | |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 613 | static u16 vnt_rxtx_cts(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 614 | union vnt_tx_head *tx_head, bool need_mic) |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 615 | { |
| 616 | struct vnt_private *priv = tx_context->priv; |
| 617 | struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts; |
Malcolm Priestley | b00cb68 | 2014-07-10 19:56:11 +0100 | [diff] [blame] | 618 | union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 619 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 620 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 621 | u8 need_ack = tx_context->need_ack; |
| 622 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 623 | buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, tx_context->pkt_type, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 624 | frame_len, current_rate, need_ack); |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 625 | buf->rrv_time_b = vnt_rxtx_rsvtime_le16(priv, PK_TYPE_11B, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 626 | frame_len, priv->top_cck_basic_rate, need_ack); |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 627 | |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 628 | buf->cts_rrv_time_ba = vnt_get_rtscts_rsvtime_le(priv, 3, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 629 | tx_context->pkt_type, frame_len, current_rate); |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 630 | |
Malcolm Priestley | b00cb68 | 2014-07-10 19:56:11 +0100 | [diff] [blame] | 631 | if (need_mic) |
| 632 | head = &tx_head->tx_cts.tx.mic.head; |
| 633 | |
| 634 | /* Fill CTS */ |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 635 | return vnt_fill_cts_head(tx_context, head); |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 636 | } |
| 637 | |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 638 | static u16 vnt_rxtx_ab(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 639 | union vnt_tx_head *tx_head, bool need_rts, bool need_mic) |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 640 | { |
| 641 | struct vnt_private *priv = tx_context->priv; |
| 642 | struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab; |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 643 | union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 644 | u32 frame_len = tx_context->frame_len; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 645 | u16 current_rate = tx_context->tx_rate; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 646 | u8 need_ack = tx_context->need_ack; |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 647 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 648 | buf->rrv_time = vnt_rxtx_rsvtime_le16(priv, tx_context->pkt_type, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 649 | frame_len, current_rate, need_ack); |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 650 | |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 651 | if (need_mic) |
| 652 | head = &tx_head->tx_ab.tx.mic.head; |
| 653 | |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 654 | if (need_rts) { |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 655 | if (tx_context->pkt_type == PK_TYPE_11B) |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 656 | buf->rts_rrv_time = vnt_get_rtscts_rsvtime_le(priv, 0, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 657 | tx_context->pkt_type, frame_len, current_rate); |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 658 | else /* PK_TYPE_11A */ |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 659 | buf->rts_rrv_time = vnt_get_rtscts_rsvtime_le(priv, 2, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 660 | tx_context->pkt_type, frame_len, current_rate); |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 661 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 662 | if (tx_context->fb_option && |
| 663 | tx_context->pkt_type == PK_TYPE_11A) |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 664 | return vnt_rxtx_rts_a_fb_head(tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 665 | &head->rts_a_fb); |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 666 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 667 | return vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab); |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 668 | } |
| 669 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 670 | if (tx_context->pkt_type == PK_TYPE_11A) |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 671 | return vnt_rxtx_datahead_a_fb(tx_context, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 672 | &head->data_head_a_fb); |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 673 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 674 | return vnt_rxtx_datahead_ab(tx_context, &head->data_head_ab); |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 675 | } |
| 676 | |
Malcolm Priestley | 9ec7f2d | 2014-07-10 19:56:15 +0100 | [diff] [blame] | 677 | static u16 vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 678 | struct vnt_tx_buffer *tx_buffer, |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 679 | struct vnt_mic_hdr **mic_hdr, u32 need_mic, |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 680 | bool need_rts) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 681 | { |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 682 | |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 683 | if (tx_context->pkt_type == PK_TYPE_11GB || |
| 684 | tx_context->pkt_type == PK_TYPE_11GA) { |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 685 | if (need_rts) { |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 686 | if (need_mic) |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 687 | *mic_hdr = &tx_buffer-> |
| 688 | tx_head.tx_rts.tx.mic.hdr; |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 689 | |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 690 | return vnt_rxtx_rts(tx_context, &tx_buffer->tx_head, |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 691 | need_mic); |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 692 | } |
Malcolm Priestley | f0e0d50 | 2013-09-26 18:52:10 +0100 | [diff] [blame] | 693 | |
Malcolm Priestley | da9ef9f | 2014-07-10 19:56:13 +0100 | [diff] [blame] | 694 | if (need_mic) |
| 695 | *mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr; |
| 696 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 697 | return vnt_rxtx_cts(tx_context, &tx_buffer->tx_head, need_mic); |
Malcolm Priestley | c12dca0 | 2013-10-01 16:03:40 +0100 | [diff] [blame] | 698 | } |
| 699 | |
Malcolm Priestley | da9ef9f | 2014-07-10 19:56:13 +0100 | [diff] [blame] | 700 | if (need_mic) |
| 701 | *mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr; |
| 702 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 703 | return vnt_rxtx_ab(tx_context, &tx_buffer->tx_head, need_rts, need_mic); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 704 | } |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 705 | |
| 706 | static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context, |
| 707 | u8 *key_buffer, struct ieee80211_key_conf *tx_key, struct sk_buff *skb, |
| 708 | u16 payload_len, struct vnt_mic_hdr *mic_hdr) |
| 709 | { |
| 710 | struct ieee80211_hdr *hdr = tx_context->hdr; |
| 711 | struct ieee80211_key_seq seq; |
| 712 | u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb)); |
| 713 | |
| 714 | /* strip header and icv len from payload */ |
| 715 | payload_len -= ieee80211_get_hdrlen_from_skb(skb); |
| 716 | payload_len -= tx_key->icv_len; |
| 717 | |
| 718 | switch (tx_key->cipher) { |
| 719 | case WLAN_CIPHER_SUITE_WEP40: |
| 720 | case WLAN_CIPHER_SUITE_WEP104: |
| 721 | memcpy(key_buffer, iv, 3); |
| 722 | memcpy(key_buffer + 3, tx_key->key, tx_key->keylen); |
| 723 | |
| 724 | if (tx_key->keylen == WLAN_KEY_LEN_WEP40) { |
| 725 | memcpy(key_buffer + 8, iv, 3); |
| 726 | memcpy(key_buffer + 11, |
| 727 | tx_key->key, WLAN_KEY_LEN_WEP40); |
| 728 | } |
| 729 | |
| 730 | break; |
| 731 | case WLAN_CIPHER_SUITE_TKIP: |
| 732 | ieee80211_get_tkip_p2k(tx_key, skb, key_buffer); |
| 733 | |
| 734 | break; |
| 735 | case WLAN_CIPHER_SUITE_CCMP: |
| 736 | |
| 737 | if (!mic_hdr) |
| 738 | return; |
| 739 | |
| 740 | mic_hdr->id = 0x59; |
| 741 | mic_hdr->payload_len = cpu_to_be16(payload_len); |
| 742 | memcpy(mic_hdr->mic_addr2, hdr->addr2, ETH_ALEN); |
| 743 | |
| 744 | ieee80211_get_key_tx_seq(tx_key, &seq); |
| 745 | |
Malcolm Priestley | 79f976d | 2014-06-28 23:55:39 +0100 | [diff] [blame] | 746 | memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 747 | |
| 748 | if (ieee80211_has_a4(hdr->frame_control)) |
| 749 | mic_hdr->hlen = cpu_to_be16(28); |
| 750 | else |
| 751 | mic_hdr->hlen = cpu_to_be16(22); |
| 752 | |
| 753 | memcpy(mic_hdr->addr1, hdr->addr1, ETH_ALEN); |
| 754 | memcpy(mic_hdr->addr2, hdr->addr2, ETH_ALEN); |
| 755 | memcpy(mic_hdr->addr3, hdr->addr3, ETH_ALEN); |
| 756 | |
| 757 | mic_hdr->frame_control = cpu_to_le16( |
| 758 | le16_to_cpu(hdr->frame_control) & 0xc78f); |
| 759 | mic_hdr->seq_ctrl = cpu_to_le16( |
| 760 | le16_to_cpu(hdr->seq_ctrl) & 0xf); |
| 761 | |
| 762 | if (ieee80211_has_a4(hdr->frame_control)) |
| 763 | memcpy(mic_hdr->addr4, hdr->addr4, ETH_ALEN); |
| 764 | |
| 765 | |
| 766 | memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP); |
| 767 | |
| 768 | break; |
| 769 | default: |
| 770 | break; |
| 771 | } |
| 772 | |
| 773 | } |
| 774 | |
| 775 | int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb) |
| 776 | { |
| 777 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| 778 | struct ieee80211_tx_rate *tx_rate = &info->control.rates[0]; |
| 779 | struct ieee80211_rate *rate; |
| 780 | struct ieee80211_key_conf *tx_key; |
| 781 | struct ieee80211_hdr *hdr; |
| 782 | struct vnt_mic_hdr *mic_hdr = NULL; |
| 783 | struct vnt_tx_buffer *tx_buffer; |
| 784 | struct vnt_tx_fifo_head *tx_buffer_head; |
| 785 | struct vnt_usb_send_context *tx_context; |
| 786 | unsigned long flags; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 787 | u16 tx_bytes, tx_header_size, tx_body_size, current_rate, duration_id; |
| 788 | u8 pkt_type, fb_option = AUTO_FB_NONE; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 789 | bool need_rts = false, is_pspoll = false; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 790 | bool need_mic = false; |
| 791 | |
| 792 | hdr = (struct ieee80211_hdr *)(skb->data); |
| 793 | |
| 794 | rate = ieee80211_get_tx_rate(priv->hw, info); |
| 795 | |
| 796 | current_rate = rate->hw_value; |
Malcolm Priestley | 8b84c1d | 2014-07-20 15:33:19 +0100 | [diff] [blame] | 797 | if (priv->current_rate != current_rate && |
Malcolm Priestley | 5091d96 | 2014-07-05 19:24:23 +0100 | [diff] [blame] | 798 | !(priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) { |
Malcolm Priestley | 8b84c1d | 2014-07-20 15:33:19 +0100 | [diff] [blame] | 799 | priv->current_rate = current_rate; |
Malcolm Priestley | 57981a6 | 2014-07-13 10:42:50 +0100 | [diff] [blame] | 800 | vnt_schedule_command(priv, WLAN_CMD_SETPOWER); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | if (current_rate > RATE_11M) |
Malcolm Priestley | e12471d | 2014-07-20 15:33:12 +0100 | [diff] [blame] | 804 | pkt_type = priv->packet_type; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 805 | else |
| 806 | pkt_type = PK_TYPE_11B; |
| 807 | |
| 808 | spin_lock_irqsave(&priv->lock, flags); |
| 809 | |
Malcolm Priestley | a032b16 | 2014-07-11 01:08:28 +0100 | [diff] [blame] | 810 | tx_context = vnt_get_free_context(priv); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 811 | if (!tx_context) { |
| 812 | dev_dbg(&priv->usb->dev, "%s No free context\n", __func__); |
| 813 | spin_unlock_irqrestore(&priv->lock, flags); |
| 814 | return -ENOMEM; |
| 815 | } |
| 816 | |
| 817 | tx_context->skb = skb; |
Malcolm Priestley | e8c9875 | 2014-07-20 15:33:31 +0100 | [diff] [blame] | 818 | tx_context->pkt_type = pkt_type; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 819 | tx_context->need_ack = false; |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 820 | tx_context->frame_len = skb->len + 4; |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 821 | tx_context->tx_rate = current_rate; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 822 | |
| 823 | spin_unlock_irqrestore(&priv->lock, flags); |
| 824 | |
| 825 | tx_buffer = (struct vnt_tx_buffer *)tx_context->data; |
| 826 | tx_buffer_head = &tx_buffer->fifo_head; |
| 827 | tx_body_size = skb->len; |
| 828 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 829 | /*Set fifo controls */ |
| 830 | if (pkt_type == PK_TYPE_11A) |
| 831 | tx_buffer_head->wFIFOCtl = 0; |
| 832 | else if (pkt_type == PK_TYPE_11B) |
| 833 | tx_buffer_head->wFIFOCtl = FIFOCTL_11B; |
| 834 | else if (pkt_type == PK_TYPE_11GB) |
| 835 | tx_buffer_head->wFIFOCtl = FIFOCTL_11GB; |
| 836 | else if (pkt_type == PK_TYPE_11GA) |
| 837 | tx_buffer_head->wFIFOCtl = FIFOCTL_11GA; |
| 838 | |
| 839 | if (!ieee80211_is_data(hdr->frame_control)) { |
| 840 | tx_buffer_head->wFIFOCtl |= (FIFOCTL_GENINT | |
| 841 | FIFOCTL_ISDMA0); |
| 842 | tx_buffer_head->wFIFOCtl |= FIFOCTL_TMOEN; |
| 843 | |
| 844 | tx_buffer_head->time_stamp = |
| 845 | cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us); |
| 846 | } else { |
| 847 | tx_buffer_head->time_stamp = |
| 848 | cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us); |
| 849 | } |
| 850 | |
| 851 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
| 852 | tx_buffer_head->wFIFOCtl |= FIFOCTL_NEEDACK; |
Malcolm Priestley | 2eca8db | 2014-07-20 15:33:32 +0100 | [diff] [blame] | 853 | tx_context->need_ack = true; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 854 | } |
| 855 | |
| 856 | if (ieee80211_has_retry(hdr->frame_control)) |
| 857 | tx_buffer_head->wFIFOCtl |= FIFOCTL_LRETRY; |
| 858 | |
| 859 | if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 860 | priv->preamble_type = PREAMBLE_SHORT; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 861 | else |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 862 | priv->preamble_type = PREAMBLE_LONG; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 863 | |
| 864 | if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
| 865 | need_rts = true; |
| 866 | tx_buffer_head->wFIFOCtl |= FIFOCTL_RTS; |
| 867 | } |
| 868 | |
| 869 | if (ieee80211_has_a4(hdr->frame_control)) |
| 870 | tx_buffer_head->wFIFOCtl |= FIFOCTL_LHEAD; |
| 871 | |
| 872 | if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER) |
| 873 | is_pspoll = true; |
| 874 | |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 875 | tx_buffer_head->frag_ctl = |
| 876 | cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 877 | |
| 878 | if (info->control.hw_key) { |
| 879 | tx_key = info->control.hw_key; |
| 880 | switch (info->control.hw_key->cipher) { |
| 881 | case WLAN_CIPHER_SUITE_WEP40: |
| 882 | case WLAN_CIPHER_SUITE_WEP104: |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 883 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_LEGACY); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 884 | break; |
| 885 | case WLAN_CIPHER_SUITE_TKIP: |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 886 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 887 | break; |
| 888 | case WLAN_CIPHER_SUITE_CCMP: |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 889 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 890 | need_mic = true; |
| 891 | default: |
| 892 | break; |
| 893 | } |
Malcolm Priestley | 0f5567c | 2014-07-20 15:33:33 +0100 | [diff] [blame] | 894 | tx_context->frame_len += tx_key->icv_len; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 895 | } |
| 896 | |
Malcolm Priestley | cb8ee9de | 2014-07-10 19:56:05 +0100 | [diff] [blame] | 897 | tx_buffer_head->current_rate = cpu_to_le16(current_rate); |
| 898 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 899 | /* legacy rates TODO use ieee80211_tx_rate */ |
| 900 | if (current_rate >= RATE_18M && ieee80211_is_data(hdr->frame_control)) { |
Malcolm Priestley | a6177ae | 2014-07-20 15:33:24 +0100 | [diff] [blame] | 901 | if (priv->auto_fb_ctrl == AUTO_FB_0) { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 902 | tx_buffer_head->wFIFOCtl |= FIFOCTL_AUTO_FB_0; |
| 903 | |
| 904 | priv->tx_rate_fb0 = |
Malcolm Priestley | e3f3187 | 2014-07-11 01:08:26 +0100 | [diff] [blame] | 905 | vnt_fb_opt0[FB_RATE0][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 906 | priv->tx_rate_fb1 = |
Malcolm Priestley | e3f3187 | 2014-07-11 01:08:26 +0100 | [diff] [blame] | 907 | vnt_fb_opt0[FB_RATE1][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 908 | |
| 909 | fb_option = AUTO_FB_0; |
Malcolm Priestley | a6177ae | 2014-07-20 15:33:24 +0100 | [diff] [blame] | 910 | } else if (priv->auto_fb_ctrl == AUTO_FB_1) { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 911 | tx_buffer_head->wFIFOCtl |= FIFOCTL_AUTO_FB_1; |
| 912 | |
| 913 | priv->tx_rate_fb0 = |
Malcolm Priestley | 2331ba4 | 2014-07-11 01:08:27 +0100 | [diff] [blame] | 914 | vnt_fb_opt1[FB_RATE0][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 915 | priv->tx_rate_fb1 = |
Malcolm Priestley | 2331ba4 | 2014-07-11 01:08:27 +0100 | [diff] [blame] | 916 | vnt_fb_opt1[FB_RATE1][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 917 | |
| 918 | fb_option = AUTO_FB_1; |
| 919 | } |
| 920 | } |
| 921 | |
Malcolm Priestley | 71d764a | 2014-07-05 19:24:27 +0100 | [diff] [blame] | 922 | tx_context->fb_option = fb_option; |
| 923 | |
Malcolm Priestley | 798f060 | 2014-07-20 15:33:34 +0100 | [diff] [blame] | 924 | duration_id = vnt_generate_tx_parameter(tx_context, tx_buffer, &mic_hdr, |
| 925 | need_mic, need_rts); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 926 | |
| 927 | tx_header_size = tx_context->tx_hdr_size; |
| 928 | if (!tx_header_size) { |
| 929 | tx_context->in_use = false; |
| 930 | return -ENOMEM; |
| 931 | } |
| 932 | |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 933 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 934 | |
| 935 | tx_bytes = tx_header_size + tx_body_size; |
| 936 | |
| 937 | memcpy(tx_context->hdr, skb->data, tx_body_size); |
| 938 | |
| 939 | hdr->duration_id = cpu_to_le16(duration_id); |
| 940 | |
| 941 | if (info->control.hw_key) { |
| 942 | tx_key = info->control.hw_key; |
| 943 | if (tx_key->keylen > 0) |
| 944 | vnt_fill_txkey(tx_context, tx_buffer_head->tx_key, |
| 945 | tx_key, skb, tx_body_size, mic_hdr); |
| 946 | } |
| 947 | |
Malcolm Priestley | 1b2bc0a | 2014-07-20 15:33:23 +0100 | [diff] [blame] | 948 | priv->seq_counter = (le16_to_cpu(hdr->seq_ctrl) & |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 949 | IEEE80211_SCTL_SEQ) >> 4; |
| 950 | |
| 951 | tx_buffer->tx_byte_count = cpu_to_le16(tx_bytes); |
Malcolm Priestley | 71d764a | 2014-07-05 19:24:27 +0100 | [diff] [blame] | 952 | tx_buffer->byPKTNO = tx_context->pkt_no; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 953 | tx_buffer->byType = 0x00; |
| 954 | |
| 955 | tx_bytes += 4; |
| 956 | |
| 957 | tx_context->type = CONTEXT_DATA_PACKET; |
| 958 | tx_context->buf_len = tx_bytes; |
| 959 | |
| 960 | spin_lock_irqsave(&priv->lock, flags); |
| 961 | |
Malcolm Priestley | 476e7d9 | 2014-07-15 19:54:39 +0100 | [diff] [blame] | 962 | if (vnt_tx_context(priv, tx_context) != STATUS_PENDING) { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 963 | spin_unlock_irqrestore(&priv->lock, flags); |
| 964 | return -EIO; |
| 965 | } |
| 966 | |
| 967 | spin_unlock_irqrestore(&priv->lock, flags); |
| 968 | |
| 969 | return 0; |
| 970 | } |
| 971 | |
| 972 | static int vnt_beacon_xmit(struct vnt_private *priv, |
| 973 | struct sk_buff *skb) |
| 974 | { |
| 975 | struct vnt_beacon_buffer *beacon_buffer; |
| 976 | struct vnt_tx_short_buf_head *short_head; |
| 977 | struct ieee80211_tx_info *info; |
| 978 | struct vnt_usb_send_context *context; |
| 979 | struct ieee80211_mgmt *mgmt_hdr; |
| 980 | unsigned long flags; |
| 981 | u32 frame_size = skb->len + 4; |
| 982 | u16 current_rate, count; |
| 983 | |
| 984 | spin_lock_irqsave(&priv->lock, flags); |
| 985 | |
Malcolm Priestley | a032b16 | 2014-07-11 01:08:28 +0100 | [diff] [blame] | 986 | context = vnt_get_free_context(priv); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 987 | if (!context) { |
| 988 | dev_dbg(&priv->usb->dev, "%s No free context!\n", __func__); |
| 989 | spin_unlock_irqrestore(&priv->lock, flags); |
| 990 | return -ENOMEM; |
| 991 | } |
| 992 | |
| 993 | context->skb = skb; |
| 994 | |
| 995 | spin_unlock_irqrestore(&priv->lock, flags); |
| 996 | |
| 997 | beacon_buffer = (struct vnt_beacon_buffer *)&context->data[0]; |
| 998 | short_head = &beacon_buffer->short_head; |
| 999 | |
Malcolm Priestley | 65df77e | 2014-07-20 15:33:11 +0100 | [diff] [blame] | 1000 | if (priv->bb_type == BB_TYPE_11A) { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1001 | current_rate = RATE_6M; |
| 1002 | |
| 1003 | /* Get SignalField,ServiceField,Length */ |
| 1004 | vnt_get_phy_field(priv, frame_size, current_rate, |
| 1005 | PK_TYPE_11A, &short_head->ab); |
| 1006 | |
| 1007 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 1008 | short_head->duration = vnt_get_duration_le(priv, |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1009 | PK_TYPE_11A, false); |
| 1010 | short_head->time_stamp_off = |
| 1011 | vnt_time_stamp_off(priv, current_rate); |
| 1012 | } else { |
| 1013 | current_rate = RATE_1M; |
| 1014 | short_head->fifo_ctl |= FIFOCTL_11B; |
| 1015 | |
| 1016 | /* Get SignalField,ServiceField,Length */ |
| 1017 | vnt_get_phy_field(priv, frame_size, current_rate, |
| 1018 | PK_TYPE_11B, &short_head->ab); |
| 1019 | |
| 1020 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 1021 | short_head->duration = vnt_get_duration_le(priv, |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1022 | PK_TYPE_11B, false); |
| 1023 | short_head->time_stamp_off = |
| 1024 | vnt_time_stamp_off(priv, current_rate); |
| 1025 | } |
| 1026 | |
| 1027 | /* Generate Beacon Header */ |
| 1028 | mgmt_hdr = &beacon_buffer->mgmt_hdr; |
| 1029 | memcpy(mgmt_hdr, skb->data, skb->len); |
| 1030 | |
| 1031 | /* time stamp always 0 */ |
| 1032 | mgmt_hdr->u.beacon.timestamp = 0; |
| 1033 | |
| 1034 | info = IEEE80211_SKB_CB(skb); |
| 1035 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |
| 1036 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)mgmt_hdr; |
| 1037 | hdr->duration_id = 0; |
Malcolm Priestley | 1b2bc0a | 2014-07-20 15:33:23 +0100 | [diff] [blame] | 1038 | hdr->seq_ctrl = cpu_to_le16(priv->seq_counter << 4); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1039 | } |
| 1040 | |
Malcolm Priestley | 1b2bc0a | 2014-07-20 15:33:23 +0100 | [diff] [blame] | 1041 | priv->seq_counter++; |
| 1042 | if (priv->seq_counter > 0x0fff) |
| 1043 | priv->seq_counter = 0; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1044 | |
| 1045 | count = sizeof(struct vnt_tx_short_buf_head) + skb->len; |
| 1046 | |
| 1047 | beacon_buffer->tx_byte_count = cpu_to_le16(count); |
Malcolm Priestley | 71d764a | 2014-07-05 19:24:27 +0100 | [diff] [blame] | 1048 | beacon_buffer->byPKTNO = context->pkt_no; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1049 | beacon_buffer->byType = 0x01; |
| 1050 | |
| 1051 | context->type = CONTEXT_BEACON_PACKET; |
| 1052 | context->buf_len = count + 4; /* USB header */ |
| 1053 | |
| 1054 | spin_lock_irqsave(&priv->lock, flags); |
| 1055 | |
Malcolm Priestley | 476e7d9 | 2014-07-15 19:54:39 +0100 | [diff] [blame] | 1056 | if (vnt_tx_context(priv, context) != STATUS_PENDING) |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1057 | ieee80211_free_txskb(priv->hw, context->skb); |
| 1058 | |
| 1059 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1060 | |
| 1061 | return 0; |
| 1062 | } |
| 1063 | |
| 1064 | int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif) |
| 1065 | { |
| 1066 | struct sk_buff *beacon; |
| 1067 | |
| 1068 | beacon = ieee80211_beacon_get(priv->hw, vif); |
| 1069 | if (!beacon) |
| 1070 | return -ENOMEM; |
| 1071 | |
| 1072 | if (vnt_beacon_xmit(priv, beacon)) { |
| 1073 | ieee80211_free_txskb(priv->hw, beacon); |
| 1074 | return -ENODEV; |
| 1075 | } |
| 1076 | |
| 1077 | return 0; |
| 1078 | } |
| 1079 | |
| 1080 | int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif, |
| 1081 | struct ieee80211_bss_conf *conf) |
| 1082 | { |
| 1083 | int ret; |
| 1084 | |
| 1085 | vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX); |
| 1086 | |
| 1087 | vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN); |
| 1088 | |
| 1089 | vnt_mac_set_beacon_interval(priv, conf->beacon_int); |
| 1090 | |
| 1091 | vnt_clear_current_tsf(priv); |
| 1092 | |
| 1093 | vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN); |
| 1094 | |
| 1095 | vnt_reset_next_tbtt(priv, conf->beacon_int); |
| 1096 | |
| 1097 | ret = vnt_beacon_make(priv, vif); |
| 1098 | |
| 1099 | return ret; |
| 1100 | } |