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 | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 183 | static __le16 vnt_get_duration_le(struct vnt_private *piv, |
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 | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 190 | ack_time = vnt_get_frame_time(piv->preamble_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 191 | pkt_type, 14, piv->top_cck_basic_rate); |
Malcolm Priestley | b02ccd5 | 2013-08-13 19:59:31 +0100 | [diff] [blame] | 192 | else |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 193 | ack_time = vnt_get_frame_time(piv->preamble_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 194 | pkt_type, 14, piv->top_ofdm_basic_rate); |
Malcolm Priestley | a4c2a8a | 2014-07-11 01:08:21 +0100 | [diff] [blame] | 195 | |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 196 | return cpu_to_le16((u16)(piv->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 | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 202 | static __le16 vnt_get_rtscts_duration_le(struct vnt_private *priv, u8 dur_type, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 203 | u32 frame_length, u8 pkt_type, u16 rate, int need_ack) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 204 | { |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 205 | u32 cts_time = 0, dur_time = 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 206 | |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 207 | switch (dur_type) { |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 208 | case RTSDUR_BB: |
| 209 | case RTSDUR_BA: |
| 210 | case RTSDUR_BA_F0: |
| 211 | case RTSDUR_BA_F1: |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 212 | cts_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 213 | pkt_type, 14, priv->top_cck_basic_rate); |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 214 | dur_time = cts_time + 2 * priv->sifs + |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 215 | vnt_get_rsvtime(priv, pkt_type, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 216 | frame_length, rate, need_ack); |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 217 | break; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 218 | |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 219 | case RTSDUR_AA: |
| 220 | case RTSDUR_AA_F0: |
| 221 | case RTSDUR_AA_F1: |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 222 | cts_time = vnt_get_frame_time(priv->preamble_type, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 223 | pkt_type, 14, priv->top_ofdm_basic_rate); |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 224 | dur_time = cts_time + 2 * priv->sifs + |
Malcolm Priestley | 3815a27 | 2014-07-11 01:08:24 +0100 | [diff] [blame] | 225 | vnt_get_rsvtime(priv, pkt_type, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 226 | frame_length, rate, need_ack); |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 227 | break; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 228 | |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 229 | case CTSDUR_BA: |
| 230 | case CTSDUR_BA_F0: |
| 231 | case CTSDUR_BA_F1: |
Malcolm Priestley | ff5fee2 | 2014-07-19 12:30:18 +0100 | [diff] [blame] | 232 | dur_time = priv->sifs + vnt_get_rsvtime(priv, |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 233 | pkt_type, frame_length, rate, need_ack); |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 234 | break; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 235 | |
Malcolm Priestley | ecd8024 | 2013-10-15 21:05:02 +0100 | [diff] [blame] | 236 | default: |
| 237 | break; |
| 238 | } |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 239 | |
Malcolm Priestley | 7beae9a2 | 2014-07-11 01:08:19 +0100 | [diff] [blame] | 240 | return cpu_to_le16((u16)dur_time); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 241 | } |
| 242 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 243 | static u16 vnt_mac_hdr_pos(struct vnt_usb_send_context *tx_context, |
| 244 | struct ieee80211_hdr *hdr) |
| 245 | { |
| 246 | u8 *head = tx_context->data + offsetof(struct vnt_tx_buffer, fifo_head); |
| 247 | u8 *hdr_pos = (u8 *)hdr; |
| 248 | |
| 249 | tx_context->hdr = hdr; |
| 250 | if (!tx_context->hdr) |
| 251 | return 0; |
| 252 | |
| 253 | return (u16)(hdr_pos - head); |
| 254 | } |
| 255 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 256 | static u16 vnt_rxtx_datahead_g(struct vnt_usb_send_context *tx_context, |
| 257 | u8 pkt_type, u16 rate, struct vnt_tx_datahead_g *buf, |
| 258 | u32 frame_len, int need_ack) |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 259 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 260 | |
| 261 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 262 | struct ieee80211_hdr *hdr = |
| 263 | (struct ieee80211_hdr *)tx_context->skb->data; |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 264 | |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 265 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 266 | vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a); |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 267 | vnt_get_phy_field(priv, frame_len, priv->top_cck_basic_rate, |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 268 | PK_TYPE_11B, &buf->b); |
| 269 | |
| 270 | /* Get Duration and TimeStamp */ |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 271 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
| 272 | __le16 dur = cpu_to_le16(priv->current_aid | BIT(14) | BIT(15)); |
| 273 | |
| 274 | buf->duration_a = dur; |
| 275 | buf->duration_b = dur; |
| 276 | } else { |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 277 | buf->duration_a = vnt_get_duration_le(priv, pkt_type, need_ack); |
| 278 | buf->duration_b = vnt_get_duration_le(priv, |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 279 | PK_TYPE_11B, need_ack); |
| 280 | } |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 281 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 282 | buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate); |
| 283 | buf->time_stamp_off_b = vnt_time_stamp_off(priv, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 284 | priv->top_cck_basic_rate); |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 285 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 286 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 287 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 288 | return le16_to_cpu(buf->duration_a); |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 289 | } |
| 290 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 291 | static u16 vnt_rxtx_datahead_g_fb(struct vnt_usb_send_context *tx_context, |
| 292 | u8 pkt_type, u16 rate, struct vnt_tx_datahead_g_fb *buf, |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 293 | u32 frame_len, int need_ack) |
| 294 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 295 | struct vnt_private *priv = tx_context->priv; |
| 296 | |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 297 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 298 | vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 299 | |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 300 | vnt_get_phy_field(priv, frame_len, priv->top_cck_basic_rate, |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 301 | PK_TYPE_11B, &buf->b); |
| 302 | |
| 303 | /* Get Duration and TimeStamp */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 304 | buf->duration_a = vnt_get_duration_le(priv, pkt_type, need_ack); |
| 305 | 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] | 306 | |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 307 | buf->duration_a_f0 = vnt_get_duration_le(priv, pkt_type, need_ack); |
| 308 | buf->duration_a_f1 = vnt_get_duration_le(priv, pkt_type, need_ack); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 309 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 310 | buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate); |
| 311 | buf->time_stamp_off_b = vnt_time_stamp_off(priv, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 312 | priv->top_cck_basic_rate); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 313 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 314 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 315 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 316 | return le16_to_cpu(buf->duration_a); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 317 | } |
| 318 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 319 | static u16 vnt_rxtx_datahead_a_fb(struct vnt_usb_send_context *tx_context, |
| 320 | u8 pkt_type, u16 rate, struct vnt_tx_datahead_a_fb *buf, |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 321 | u32 frame_len, int need_ack) |
| 322 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 323 | struct vnt_private *priv = tx_context->priv; |
| 324 | |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 325 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 326 | vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->a); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 327 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 328 | buf->duration = vnt_get_duration_le(priv, pkt_type, need_ack); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 329 | |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 330 | buf->duration_f0 = vnt_get_duration_le(priv, pkt_type, need_ack); |
| 331 | buf->duration_f1 = vnt_get_duration_le(priv, pkt_type, need_ack); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 332 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 333 | buf->time_stamp_off = vnt_time_stamp_off(priv, rate); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 334 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 335 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 336 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 337 | return le16_to_cpu(buf->duration); |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 338 | } |
| 339 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 340 | static u16 vnt_rxtx_datahead_ab(struct vnt_usb_send_context *tx_context, |
| 341 | u8 pkt_type, u16 rate, struct vnt_tx_datahead_ab *buf, |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 342 | u32 frame_len, int need_ack) |
| 343 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 344 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 345 | struct ieee80211_hdr *hdr = |
| 346 | (struct ieee80211_hdr *)tx_context->skb->data; |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 347 | |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 348 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 349 | vnt_get_phy_field(priv, frame_len, rate, pkt_type, &buf->ab); |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 350 | |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 351 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 352 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
| 353 | __le16 dur = cpu_to_le16(priv->current_aid | BIT(14) | BIT(15)); |
| 354 | |
| 355 | buf->duration = dur; |
| 356 | } else { |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 357 | buf->duration = vnt_get_duration_le(priv, pkt_type, need_ack); |
Malcolm Priestley | 893cc70 | 2014-06-25 21:14:38 +0100 | [diff] [blame] | 358 | } |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 359 | |
Malcolm Priestley | 10bb39a | 2014-03-18 19:25:01 +0000 | [diff] [blame] | 360 | buf->time_stamp_off = vnt_time_stamp_off(priv, rate); |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 361 | |
Malcolm Priestley | 1622c8f | 2014-05-31 13:34:58 +0100 | [diff] [blame] | 362 | tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr); |
| 363 | |
Malcolm Priestley | c4cf6df | 2014-03-18 19:25:04 +0000 | [diff] [blame] | 364 | return le16_to_cpu(buf->duration); |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 365 | } |
| 366 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 367 | static int vnt_fill_ieee80211_rts(struct vnt_usb_send_context *tx_context, |
| 368 | struct ieee80211_rts *rts, __le16 duration) |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 369 | { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 370 | struct ieee80211_hdr *hdr = |
| 371 | (struct ieee80211_hdr *)tx_context->skb->data; |
| 372 | |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 373 | rts->duration = duration; |
Malcolm Priestley | f4554d3 | 2014-03-22 09:01:31 +0000 | [diff] [blame] | 374 | rts->frame_control = |
| 375 | cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 376 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 377 | memcpy(rts->ra, hdr->addr1, ETH_ALEN); |
| 378 | memcpy(rts->ta, hdr->addr2, ETH_ALEN); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 383 | static u16 vnt_rxtx_rts_g_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 72bf805 | 2014-07-10 19:56:02 +0100 | [diff] [blame] | 384 | struct vnt_rts_g *buf, u8 pkt_type, u32 frame_len, int need_ack, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 385 | u16 current_rate) |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 386 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 387 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 388 | u16 rts_frame_len = 20; |
| 389 | |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 390 | 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] | 391 | PK_TYPE_11B, &buf->b); |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 392 | vnt_get_phy_field(priv, rts_frame_len, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 393 | priv->top_ofdm_basic_rate, pkt_type, &buf->a); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 394 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 395 | buf->duration_bb = vnt_get_rtscts_duration_le(priv, RTSDUR_BB, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 396 | frame_len, PK_TYPE_11B, priv->top_cck_basic_rate, need_ack); |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 397 | buf->duration_aa = vnt_get_rtscts_duration_le(priv, RTSDUR_AA, |
| 398 | frame_len, pkt_type, current_rate, need_ack); |
| 399 | buf->duration_ba = vnt_get_rtscts_duration_le(priv, RTSDUR_BA, |
| 400 | frame_len, pkt_type, current_rate, need_ack); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 401 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 402 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa); |
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 | return vnt_rxtx_datahead_g(tx_context, pkt_type, current_rate, |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 405 | &buf->data_head, frame_len, need_ack); |
Malcolm Priestley | 5e67ee4 | 2013-08-26 11:04:50 +0100 | [diff] [blame] | 406 | } |
| 407 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 408 | static u16 vnt_rxtx_rts_g_fb_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 72bf805 | 2014-07-10 19:56:02 +0100 | [diff] [blame] | 409 | struct vnt_rts_g_fb *buf, u8 pkt_type, u32 frame_len, int need_ack, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 410 | u16 current_rate) |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 411 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 412 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 413 | u16 rts_frame_len = 20; |
| 414 | |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 415 | 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] | 416 | PK_TYPE_11B, &buf->b); |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 417 | vnt_get_phy_field(priv, rts_frame_len, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 418 | priv->top_ofdm_basic_rate, pkt_type, &buf->a); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 419 | |
| 420 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 421 | buf->duration_bb = vnt_get_rtscts_duration_le(priv, RTSDUR_BB, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 422 | frame_len, PK_TYPE_11B, priv->top_cck_basic_rate, need_ack); |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 423 | buf->duration_aa = vnt_get_rtscts_duration_le(priv, RTSDUR_AA, |
| 424 | frame_len, pkt_type, current_rate, need_ack); |
| 425 | buf->duration_ba = vnt_get_rtscts_duration_le(priv, RTSDUR_BA, |
| 426 | frame_len, pkt_type, current_rate, need_ack); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 427 | |
| 428 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 429 | buf->rts_duration_ba_f0 = vnt_get_rtscts_duration_le(priv, RTSDUR_BA_F0, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 430 | frame_len, pkt_type, priv->tx_rate_fb0, need_ack); |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 431 | buf->rts_duration_aa_f0 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F0, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 432 | frame_len, pkt_type, priv->tx_rate_fb0, need_ack); |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 433 | buf->rts_duration_ba_f1 = vnt_get_rtscts_duration_le(priv, RTSDUR_BA_F1, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 434 | frame_len, pkt_type, priv->tx_rate_fb1, need_ack); |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 435 | buf->rts_duration_aa_f1 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F1, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 436 | frame_len, pkt_type, priv->tx_rate_fb1, need_ack); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 437 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 438 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 439 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 440 | return vnt_rxtx_datahead_g_fb(tx_context, pkt_type, current_rate, |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 441 | &buf->data_head, frame_len, need_ack); |
Malcolm Priestley | ec91713 | 2013-08-26 11:07:46 +0100 | [diff] [blame] | 442 | } |
| 443 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 444 | static u16 vnt_rxtx_rts_ab_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 72bf805 | 2014-07-10 19:56:02 +0100 | [diff] [blame] | 445 | struct vnt_rts_ab *buf, u8 pkt_type, u32 frame_len, int need_ack, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 446 | u16 current_rate) |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 447 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 448 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 449 | u16 rts_frame_len = 20; |
| 450 | |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 451 | vnt_get_phy_field(priv, rts_frame_len, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 452 | priv->top_ofdm_basic_rate, pkt_type, &buf->ab); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 453 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 454 | buf->duration = vnt_get_rtscts_duration_le(priv, RTSDUR_AA, frame_len, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 455 | pkt_type, current_rate, need_ack); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 456 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 457 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 458 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 459 | return vnt_rxtx_datahead_ab(tx_context, pkt_type, current_rate, |
Malcolm Priestley | 5634a5a | 2013-10-01 16:00:20 +0100 | [diff] [blame] | 460 | &buf->data_head, frame_len, need_ack); |
Malcolm Priestley | 1712633 | 2013-08-26 11:09:38 +0100 | [diff] [blame] | 461 | } |
| 462 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 463 | static u16 vnt_rxtx_rts_a_fb_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 72bf805 | 2014-07-10 19:56:02 +0100 | [diff] [blame] | 464 | struct vnt_rts_a_fb *buf, u8 pkt_type, u32 frame_len, int need_ack, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 465 | u16 current_rate) |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 466 | { |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 467 | struct vnt_private *priv = tx_context->priv; |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 468 | u16 rts_frame_len = 20; |
| 469 | |
Malcolm Priestley | 205056f | 2014-06-04 18:25:34 +0100 | [diff] [blame] | 470 | vnt_get_phy_field(priv, rts_frame_len, |
Malcolm Priestley | 3c8a5b2 | 2014-07-20 15:33:14 +0100 | [diff] [blame] | 471 | priv->top_ofdm_basic_rate, pkt_type, &buf->a); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 472 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 473 | buf->duration = vnt_get_rtscts_duration_le(priv, RTSDUR_AA, frame_len, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 474 | pkt_type, current_rate, need_ack); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 475 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 476 | buf->rts_duration_f0 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F0, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 477 | frame_len, pkt_type, priv->tx_rate_fb0, need_ack); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 478 | |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 479 | buf->rts_duration_f1 = vnt_get_rtscts_duration_le(priv, RTSDUR_AA_F1, |
Malcolm Priestley | 26e7362 | 2014-07-10 19:56:04 +0100 | [diff] [blame] | 480 | frame_len, pkt_type, priv->tx_rate_fb1, need_ack); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 481 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 482 | vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 483 | |
Malcolm Priestley | c2c32da | 2014-05-31 13:34:57 +0100 | [diff] [blame] | 484 | return vnt_rxtx_datahead_a_fb(tx_context, pkt_type, current_rate, |
Malcolm Priestley | bd3f51f | 2013-10-01 15:56:48 +0100 | [diff] [blame] | 485 | &buf->data_head, frame_len, need_ack); |
Malcolm Priestley | 9d2578c | 2013-08-26 11:12:00 +0100 | [diff] [blame] | 486 | } |
| 487 | |
Malcolm Priestley | 4f31668 | 2014-07-10 19:56:17 +0100 | [diff] [blame] | 488 | static u16 vnt_fill_cts_head(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 489 | u8 pkt_type, union vnt_tx_data_head *head, u32 frame_len, |
| 490 | int need_ack, u16 current_rate) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 491 | { |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 492 | struct vnt_private *priv = tx_context->priv; |
| 493 | u32 cts_frame_len = 14; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 494 | |
Malcolm Priestley | 27df3eb | 2013-08-27 11:48:34 +0100 | [diff] [blame] | 495 | if (!head) |
Malcolm Priestley | 0a0f4b6 | 2013-10-01 15:50:24 +0100 | [diff] [blame] | 496 | return 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 497 | |
Malcolm Priestley | ce7b0db | 2014-07-10 19:56:03 +0100 | [diff] [blame] | 498 | if (tx_context->fb_option) { |
Malcolm Priestley | c921cc8 | 2013-08-20 20:47:49 +0100 | [diff] [blame] | 499 | /* Auto Fall back */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 500 | struct vnt_cts_fb *buf = &head->cts_g_fb; |
Malcolm Priestley | aed387c | 2013-08-20 22:52:30 +0100 | [diff] [blame] | 501 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 502 | vnt_get_phy_field(priv, cts_frame_len, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 503 | priv->top_cck_basic_rate, PK_TYPE_11B, &buf->b); |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 504 | buf->duration_ba = vnt_get_rtscts_duration_le(priv, CTSDUR_BA, |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 505 | frame_len, pkt_type, |
| 506 | current_rate, need_ack); |
Malcolm Priestley | e34f9db | 2013-08-13 20:17:11 +0100 | [diff] [blame] | 507 | /* Get CTSDuration_ba_f0 */ |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 508 | buf->cts_duration_ba_f0 = vnt_get_rtscts_duration_le(priv, |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 509 | CTSDUR_BA_F0, frame_len, pkt_type, |
| 510 | priv->tx_rate_fb0, need_ack); |
Malcolm Priestley | e34f9db | 2013-08-13 20:17:11 +0100 | [diff] [blame] | 511 | /* Get CTSDuration_ba_f1 */ |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 512 | buf->cts_duration_ba_f1 = vnt_get_rtscts_duration_le(priv, |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 513 | CTSDUR_BA_F1, frame_len, pkt_type, |
| 514 | priv->tx_rate_fb1, need_ack); |
Malcolm Priestley | 14840cd | 2013-08-05 22:12:42 +0100 | [diff] [blame] | 515 | /* Get CTS Frame body */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 516 | buf->data.duration = buf->duration_ba; |
| 517 | buf->data.frame_control = |
Malcolm Priestley | d9560ae | 2014-03-22 09:01:32 +0000 | [diff] [blame] | 518 | cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); |
| 519 | |
Malcolm Priestley | ebf9b31 | 2014-07-19 12:30:10 +0100 | [diff] [blame] | 520 | memcpy(buf->data.ra, priv->current_net_addr, ETH_ALEN); |
Malcolm Priestley | 5b852f5 | 2013-10-01 15:54:56 +0100 | [diff] [blame] | 521 | |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 522 | return vnt_rxtx_datahead_g_fb(tx_context, pkt_type, |
| 523 | current_rate, &buf->data_head, frame_len, |
| 524 | need_ack); |
Malcolm Priestley | c921cc8 | 2013-08-20 20:47:49 +0100 | [diff] [blame] | 525 | } else { |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 526 | struct vnt_cts *buf = &head->cts_g; |
Malcolm Priestley | aed387c | 2013-08-20 22:52:30 +0100 | [diff] [blame] | 527 | /* Get SignalField,ServiceField,Length */ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 528 | vnt_get_phy_field(priv, cts_frame_len, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 529 | priv->top_cck_basic_rate, PK_TYPE_11B, &buf->b); |
Malcolm Priestley | e34f9db | 2013-08-13 20:17:11 +0100 | [diff] [blame] | 530 | /* Get CTSDuration_ba */ |
Malcolm Priestley | f2aabee | 2014-07-11 01:08:20 +0100 | [diff] [blame] | 531 | buf->duration_ba = vnt_get_rtscts_duration_le(priv, |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 532 | CTSDUR_BA, frame_len, pkt_type, |
| 533 | current_rate, need_ack); |
Malcolm Priestley | 14840cd | 2013-08-05 22:12:42 +0100 | [diff] [blame] | 534 | /*Get CTS Frame body*/ |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 535 | buf->data.duration = buf->duration_ba; |
| 536 | buf->data.frame_control = |
Malcolm Priestley | d9560ae | 2014-03-22 09:01:32 +0000 | [diff] [blame] | 537 | cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); |
| 538 | |
Malcolm Priestley | ebf9b31 | 2014-07-19 12:30:10 +0100 | [diff] [blame] | 539 | memcpy(buf->data.ra, priv->current_net_addr, ETH_ALEN); |
Malcolm Priestley | 78363fd | 2013-10-01 15:52:16 +0100 | [diff] [blame] | 540 | |
Malcolm Priestley | ee16de8 | 2014-07-10 19:56:16 +0100 | [diff] [blame] | 541 | return vnt_rxtx_datahead_g(tx_context, pkt_type, current_rate, |
| 542 | &buf->data_head, frame_len, need_ack); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 543 | } |
Malcolm Priestley | 0a0f4b6 | 2013-10-01 15:50:24 +0100 | [diff] [blame] | 544 | |
| 545 | return 0; |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 546 | } |
| 547 | |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 548 | static u16 vnt_rxtx_rts(struct vnt_usb_send_context *tx_context, |
| 549 | union vnt_tx_head *tx_head, u8 pkt_type, u32 frame_size, |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 550 | int need_ack, u16 current_rate, bool need_mic) |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 551 | { |
| 552 | struct vnt_private *priv = tx_context->priv; |
| 553 | struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts; |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 554 | union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head; |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 555 | |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 556 | buf->rts_rrv_time_aa = vnt_get_rtscts_rsvtime_le(priv, 2, |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 557 | pkt_type, frame_size, current_rate); |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 558 | buf->rts_rrv_time_ba = vnt_get_rtscts_rsvtime_le(priv, 1, |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 559 | pkt_type, frame_size, current_rate); |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 560 | buf->rts_rrv_time_bb = vnt_get_rtscts_rsvtime_le(priv, 0, |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 561 | pkt_type, frame_size, current_rate); |
| 562 | |
| 563 | buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, pkt_type, frame_size, |
| 564 | current_rate, need_ack); |
| 565 | buf->rrv_time_b = vnt_rxtx_rsvtime_le16(priv, PK_TYPE_11B, frame_size, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 566 | priv->top_cck_basic_rate, need_ack); |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 567 | |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 568 | if (need_mic) |
| 569 | head = &tx_head->tx_rts.tx.mic.head; |
| 570 | |
| 571 | if (tx_context->fb_option) |
| 572 | return vnt_rxtx_rts_g_fb_head(tx_context, &head->rts_g_fb, |
| 573 | pkt_type, frame_size, need_ack, current_rate); |
| 574 | |
| 575 | return vnt_rxtx_rts_g_head(tx_context, &head->rts_g, |
| 576 | pkt_type, frame_size, need_ack, current_rate); |
Malcolm Priestley | 24cdd90 | 2014-07-10 19:56:06 +0100 | [diff] [blame] | 577 | } |
| 578 | |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 579 | static u16 vnt_rxtx_cts(struct vnt_usb_send_context *tx_context, |
| 580 | union vnt_tx_head *tx_head, u8 pkt_type, u32 frame_size, |
Malcolm Priestley | b00cb68 | 2014-07-10 19:56:11 +0100 | [diff] [blame] | 581 | int need_ack, u16 current_rate, bool need_mic) |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 582 | { |
| 583 | struct vnt_private *priv = tx_context->priv; |
| 584 | struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts; |
Malcolm Priestley | b00cb68 | 2014-07-10 19:56:11 +0100 | [diff] [blame] | 585 | union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head; |
| 586 | |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 587 | |
| 588 | buf->rrv_time_a = vnt_rxtx_rsvtime_le16(priv, pkt_type, |
| 589 | frame_size, current_rate, need_ack); |
| 590 | buf->rrv_time_b = vnt_rxtx_rsvtime_le16(priv, PK_TYPE_11B, |
Malcolm Priestley | d80bf43 | 2014-07-20 15:33:15 +0100 | [diff] [blame] | 591 | frame_size, priv->top_cck_basic_rate, need_ack); |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 592 | |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 593 | buf->cts_rrv_time_ba = vnt_get_rtscts_rsvtime_le(priv, 3, |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 594 | pkt_type, frame_size, current_rate); |
| 595 | |
Malcolm Priestley | b00cb68 | 2014-07-10 19:56:11 +0100 | [diff] [blame] | 596 | if (need_mic) |
| 597 | head = &tx_head->tx_cts.tx.mic.head; |
| 598 | |
| 599 | /* Fill CTS */ |
Malcolm Priestley | 4f31668 | 2014-07-10 19:56:17 +0100 | [diff] [blame] | 600 | return vnt_fill_cts_head(tx_context, pkt_type, head, frame_size, |
Malcolm Priestley | b00cb68 | 2014-07-10 19:56:11 +0100 | [diff] [blame] | 601 | need_ack, current_rate); |
Malcolm Priestley | bf9c011 | 2014-07-10 19:56:07 +0100 | [diff] [blame] | 602 | } |
| 603 | |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 604 | static u16 vnt_rxtx_ab(struct vnt_usb_send_context *tx_context, |
| 605 | union vnt_tx_head *tx_head, u8 pkt_type, u32 frame_size, |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 606 | int need_ack, u16 current_rate, bool need_rts, bool need_mic) |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 607 | { |
| 608 | struct vnt_private *priv = tx_context->priv; |
| 609 | struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab; |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 610 | union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head; |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 611 | |
| 612 | buf->rrv_time = vnt_rxtx_rsvtime_le16(priv, pkt_type, |
| 613 | frame_size, current_rate, need_ack); |
| 614 | |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 615 | if (need_mic) |
| 616 | head = &tx_head->tx_ab.tx.mic.head; |
| 617 | |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 618 | if (need_rts) { |
| 619 | if (pkt_type == PK_TYPE_11B) |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 620 | buf->rts_rrv_time = vnt_get_rtscts_rsvtime_le(priv, 0, |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 621 | pkt_type, frame_size, current_rate); |
| 622 | else /* PK_TYPE_11A */ |
Malcolm Priestley | aadf7d1 | 2014-07-11 01:08:23 +0100 | [diff] [blame] | 623 | buf->rts_rrv_time = vnt_get_rtscts_rsvtime_le(priv, 2, |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 624 | pkt_type, frame_size, current_rate); |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 625 | |
| 626 | if (tx_context->fb_option && pkt_type == PK_TYPE_11A) |
| 627 | return vnt_rxtx_rts_a_fb_head(tx_context, |
| 628 | &head->rts_a_fb, pkt_type, frame_size, |
| 629 | need_ack, current_rate); |
| 630 | |
| 631 | return vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab, |
| 632 | pkt_type, frame_size, need_ack, current_rate); |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 633 | } |
| 634 | |
Malcolm Priestley | 681acf6 | 2014-07-10 19:56:12 +0100 | [diff] [blame] | 635 | if (pkt_type == PK_TYPE_11A) |
| 636 | return vnt_rxtx_datahead_a_fb(tx_context, pkt_type, |
| 637 | current_rate, &head->data_head_a_fb, |
| 638 | frame_size, need_ack); |
| 639 | |
| 640 | return vnt_rxtx_datahead_ab(tx_context, pkt_type, current_rate, |
| 641 | &head->data_head_ab, frame_size, need_ack); |
Malcolm Priestley | 3b03fea | 2014-07-10 19:56:09 +0100 | [diff] [blame] | 642 | } |
| 643 | |
Malcolm Priestley | 9ec7f2d | 2014-07-10 19:56:15 +0100 | [diff] [blame] | 644 | static u16 vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context, |
Malcolm Priestley | 165ac77 | 2014-07-10 19:56:14 +0100 | [diff] [blame] | 645 | u8 pkt_type, u16 current_rate, struct vnt_tx_buffer *tx_buffer, |
| 646 | struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 frame_size, |
| 647 | int need_ack, bool need_rts) |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 648 | { |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 649 | |
Malcolm Priestley | 165ac77 | 2014-07-10 19:56:14 +0100 | [diff] [blame] | 650 | if (pkt_type == PK_TYPE_11GB || pkt_type == PK_TYPE_11GA) { |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 651 | if (need_rts) { |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 652 | if (need_mic) |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 653 | *mic_hdr = &tx_buffer-> |
| 654 | tx_head.tx_rts.tx.mic.hdr; |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 655 | |
Malcolm Priestley | 4f06c0d | 2014-07-10 19:56:10 +0100 | [diff] [blame] | 656 | return vnt_rxtx_rts(tx_context, &tx_buffer->tx_head, |
Malcolm Priestley | 165ac77 | 2014-07-10 19:56:14 +0100 | [diff] [blame] | 657 | pkt_type, frame_size, need_ack, |
| 658 | current_rate, need_mic); |
Malcolm Priestley | 92928f1 | 2013-10-07 20:14:01 +0100 | [diff] [blame] | 659 | } |
Malcolm Priestley | f0e0d50 | 2013-09-26 18:52:10 +0100 | [diff] [blame] | 660 | |
Malcolm Priestley | da9ef9f | 2014-07-10 19:56:13 +0100 | [diff] [blame] | 661 | if (need_mic) |
| 662 | *mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr; |
| 663 | |
Malcolm Priestley | 165ac77 | 2014-07-10 19:56:14 +0100 | [diff] [blame] | 664 | return vnt_rxtx_cts(tx_context, &tx_buffer->tx_head, pkt_type, |
| 665 | frame_size, need_ack, current_rate, need_mic); |
Malcolm Priestley | c12dca0 | 2013-10-01 16:03:40 +0100 | [diff] [blame] | 666 | } |
| 667 | |
Malcolm Priestley | da9ef9f | 2014-07-10 19:56:13 +0100 | [diff] [blame] | 668 | if (need_mic) |
| 669 | *mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr; |
| 670 | |
Malcolm Priestley | 165ac77 | 2014-07-10 19:56:14 +0100 | [diff] [blame] | 671 | return vnt_rxtx_ab(tx_context, &tx_buffer->tx_head, pkt_type, |
| 672 | frame_size, need_ack, current_rate, need_rts, need_mic); |
Forest Bond | 92b9679 | 2009-06-13 07:38:31 -0400 | [diff] [blame] | 673 | } |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 674 | |
| 675 | static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context, |
| 676 | u8 *key_buffer, struct ieee80211_key_conf *tx_key, struct sk_buff *skb, |
| 677 | u16 payload_len, struct vnt_mic_hdr *mic_hdr) |
| 678 | { |
| 679 | struct ieee80211_hdr *hdr = tx_context->hdr; |
| 680 | struct ieee80211_key_seq seq; |
| 681 | u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb)); |
| 682 | |
| 683 | /* strip header and icv len from payload */ |
| 684 | payload_len -= ieee80211_get_hdrlen_from_skb(skb); |
| 685 | payload_len -= tx_key->icv_len; |
| 686 | |
| 687 | switch (tx_key->cipher) { |
| 688 | case WLAN_CIPHER_SUITE_WEP40: |
| 689 | case WLAN_CIPHER_SUITE_WEP104: |
| 690 | memcpy(key_buffer, iv, 3); |
| 691 | memcpy(key_buffer + 3, tx_key->key, tx_key->keylen); |
| 692 | |
| 693 | if (tx_key->keylen == WLAN_KEY_LEN_WEP40) { |
| 694 | memcpy(key_buffer + 8, iv, 3); |
| 695 | memcpy(key_buffer + 11, |
| 696 | tx_key->key, WLAN_KEY_LEN_WEP40); |
| 697 | } |
| 698 | |
| 699 | break; |
| 700 | case WLAN_CIPHER_SUITE_TKIP: |
| 701 | ieee80211_get_tkip_p2k(tx_key, skb, key_buffer); |
| 702 | |
| 703 | break; |
| 704 | case WLAN_CIPHER_SUITE_CCMP: |
| 705 | |
| 706 | if (!mic_hdr) |
| 707 | return; |
| 708 | |
| 709 | mic_hdr->id = 0x59; |
| 710 | mic_hdr->payload_len = cpu_to_be16(payload_len); |
| 711 | memcpy(mic_hdr->mic_addr2, hdr->addr2, ETH_ALEN); |
| 712 | |
| 713 | ieee80211_get_key_tx_seq(tx_key, &seq); |
| 714 | |
Malcolm Priestley | 79f976d | 2014-06-28 23:55:39 +0100 | [diff] [blame] | 715 | memcpy(mic_hdr->ccmp_pn, seq.ccmp.pn, IEEE80211_CCMP_PN_LEN); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 716 | |
| 717 | if (ieee80211_has_a4(hdr->frame_control)) |
| 718 | mic_hdr->hlen = cpu_to_be16(28); |
| 719 | else |
| 720 | mic_hdr->hlen = cpu_to_be16(22); |
| 721 | |
| 722 | memcpy(mic_hdr->addr1, hdr->addr1, ETH_ALEN); |
| 723 | memcpy(mic_hdr->addr2, hdr->addr2, ETH_ALEN); |
| 724 | memcpy(mic_hdr->addr3, hdr->addr3, ETH_ALEN); |
| 725 | |
| 726 | mic_hdr->frame_control = cpu_to_le16( |
| 727 | le16_to_cpu(hdr->frame_control) & 0xc78f); |
| 728 | mic_hdr->seq_ctrl = cpu_to_le16( |
| 729 | le16_to_cpu(hdr->seq_ctrl) & 0xf); |
| 730 | |
| 731 | if (ieee80211_has_a4(hdr->frame_control)) |
| 732 | memcpy(mic_hdr->addr4, hdr->addr4, ETH_ALEN); |
| 733 | |
| 734 | |
| 735 | memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP); |
| 736 | |
| 737 | break; |
| 738 | default: |
| 739 | break; |
| 740 | } |
| 741 | |
| 742 | } |
| 743 | |
| 744 | int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb) |
| 745 | { |
| 746 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| 747 | struct ieee80211_tx_rate *tx_rate = &info->control.rates[0]; |
| 748 | struct ieee80211_rate *rate; |
| 749 | struct ieee80211_key_conf *tx_key; |
| 750 | struct ieee80211_hdr *hdr; |
| 751 | struct vnt_mic_hdr *mic_hdr = NULL; |
| 752 | struct vnt_tx_buffer *tx_buffer; |
| 753 | struct vnt_tx_fifo_head *tx_buffer_head; |
| 754 | struct vnt_usb_send_context *tx_context; |
| 755 | unsigned long flags; |
| 756 | u32 frame_size = 0; |
| 757 | u16 tx_bytes, tx_header_size, tx_body_size, current_rate, duration_id; |
| 758 | u8 pkt_type, fb_option = AUTO_FB_NONE; |
| 759 | bool need_rts = false, need_ack = false, is_pspoll = false; |
| 760 | bool need_mic = false; |
| 761 | |
| 762 | hdr = (struct ieee80211_hdr *)(skb->data); |
| 763 | |
| 764 | rate = ieee80211_get_tx_rate(priv->hw, info); |
| 765 | |
| 766 | current_rate = rate->hw_value; |
Malcolm Priestley | 8b84c1d | 2014-07-20 15:33:19 +0100 | [diff] [blame] | 767 | if (priv->current_rate != current_rate && |
Malcolm Priestley | 5091d96 | 2014-07-05 19:24:23 +0100 | [diff] [blame] | 768 | !(priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) { |
Malcolm Priestley | 8b84c1d | 2014-07-20 15:33:19 +0100 | [diff] [blame] | 769 | priv->current_rate = current_rate; |
Malcolm Priestley | 57981a6 | 2014-07-13 10:42:50 +0100 | [diff] [blame] | 770 | vnt_schedule_command(priv, WLAN_CMD_SETPOWER); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 771 | } |
| 772 | |
| 773 | if (current_rate > RATE_11M) |
Malcolm Priestley | e12471d | 2014-07-20 15:33:12 +0100 | [diff] [blame] | 774 | pkt_type = priv->packet_type; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 775 | else |
| 776 | pkt_type = PK_TYPE_11B; |
| 777 | |
| 778 | spin_lock_irqsave(&priv->lock, flags); |
| 779 | |
Malcolm Priestley | a032b16 | 2014-07-11 01:08:28 +0100 | [diff] [blame] | 780 | tx_context = vnt_get_free_context(priv); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 781 | if (!tx_context) { |
| 782 | dev_dbg(&priv->usb->dev, "%s No free context\n", __func__); |
| 783 | spin_unlock_irqrestore(&priv->lock, flags); |
| 784 | return -ENOMEM; |
| 785 | } |
| 786 | |
| 787 | tx_context->skb = skb; |
| 788 | |
| 789 | spin_unlock_irqrestore(&priv->lock, flags); |
| 790 | |
| 791 | tx_buffer = (struct vnt_tx_buffer *)tx_context->data; |
| 792 | tx_buffer_head = &tx_buffer->fifo_head; |
| 793 | tx_body_size = skb->len; |
| 794 | |
| 795 | frame_size = tx_body_size + 4; |
| 796 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 797 | /*Set fifo controls */ |
| 798 | if (pkt_type == PK_TYPE_11A) |
| 799 | tx_buffer_head->wFIFOCtl = 0; |
| 800 | else if (pkt_type == PK_TYPE_11B) |
| 801 | tx_buffer_head->wFIFOCtl = FIFOCTL_11B; |
| 802 | else if (pkt_type == PK_TYPE_11GB) |
| 803 | tx_buffer_head->wFIFOCtl = FIFOCTL_11GB; |
| 804 | else if (pkt_type == PK_TYPE_11GA) |
| 805 | tx_buffer_head->wFIFOCtl = FIFOCTL_11GA; |
| 806 | |
| 807 | if (!ieee80211_is_data(hdr->frame_control)) { |
| 808 | tx_buffer_head->wFIFOCtl |= (FIFOCTL_GENINT | |
| 809 | FIFOCTL_ISDMA0); |
| 810 | tx_buffer_head->wFIFOCtl |= FIFOCTL_TMOEN; |
| 811 | |
| 812 | tx_buffer_head->time_stamp = |
| 813 | cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us); |
| 814 | } else { |
| 815 | tx_buffer_head->time_stamp = |
| 816 | cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us); |
| 817 | } |
| 818 | |
| 819 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
| 820 | tx_buffer_head->wFIFOCtl |= FIFOCTL_NEEDACK; |
| 821 | need_ack = true; |
| 822 | } |
| 823 | |
| 824 | if (ieee80211_has_retry(hdr->frame_control)) |
| 825 | tx_buffer_head->wFIFOCtl |= FIFOCTL_LRETRY; |
| 826 | |
| 827 | if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 828 | priv->preamble_type = PREAMBLE_SHORT; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 829 | else |
Malcolm Priestley | 98e93fe | 2014-07-20 15:33:17 +0100 | [diff] [blame] | 830 | priv->preamble_type = PREAMBLE_LONG; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 831 | |
| 832 | if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
| 833 | need_rts = true; |
| 834 | tx_buffer_head->wFIFOCtl |= FIFOCTL_RTS; |
| 835 | } |
| 836 | |
| 837 | if (ieee80211_has_a4(hdr->frame_control)) |
| 838 | tx_buffer_head->wFIFOCtl |= FIFOCTL_LHEAD; |
| 839 | |
| 840 | if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER) |
| 841 | is_pspoll = true; |
| 842 | |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 843 | tx_buffer_head->frag_ctl = |
| 844 | cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 845 | |
| 846 | if (info->control.hw_key) { |
| 847 | tx_key = info->control.hw_key; |
| 848 | switch (info->control.hw_key->cipher) { |
| 849 | case WLAN_CIPHER_SUITE_WEP40: |
| 850 | case WLAN_CIPHER_SUITE_WEP104: |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 851 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_LEGACY); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 852 | break; |
| 853 | case WLAN_CIPHER_SUITE_TKIP: |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 854 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 855 | break; |
| 856 | case WLAN_CIPHER_SUITE_CCMP: |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 857 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 858 | need_mic = true; |
| 859 | default: |
| 860 | break; |
| 861 | } |
| 862 | frame_size += tx_key->icv_len; |
| 863 | } |
| 864 | |
Malcolm Priestley | cb8ee9de | 2014-07-10 19:56:05 +0100 | [diff] [blame] | 865 | tx_buffer_head->current_rate = cpu_to_le16(current_rate); |
| 866 | |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 867 | /* legacy rates TODO use ieee80211_tx_rate */ |
| 868 | if (current_rate >= RATE_18M && ieee80211_is_data(hdr->frame_control)) { |
| 869 | if (priv->byAutoFBCtrl == AUTO_FB_0) { |
| 870 | tx_buffer_head->wFIFOCtl |= FIFOCTL_AUTO_FB_0; |
| 871 | |
| 872 | priv->tx_rate_fb0 = |
Malcolm Priestley | e3f3187 | 2014-07-11 01:08:26 +0100 | [diff] [blame] | 873 | vnt_fb_opt0[FB_RATE0][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 874 | priv->tx_rate_fb1 = |
Malcolm Priestley | e3f3187 | 2014-07-11 01:08:26 +0100 | [diff] [blame] | 875 | vnt_fb_opt0[FB_RATE1][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 876 | |
| 877 | fb_option = AUTO_FB_0; |
| 878 | } else if (priv->byAutoFBCtrl == AUTO_FB_1) { |
| 879 | tx_buffer_head->wFIFOCtl |= FIFOCTL_AUTO_FB_1; |
| 880 | |
| 881 | priv->tx_rate_fb0 = |
Malcolm Priestley | 2331ba4 | 2014-07-11 01:08:27 +0100 | [diff] [blame] | 882 | vnt_fb_opt1[FB_RATE0][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 883 | priv->tx_rate_fb1 = |
Malcolm Priestley | 2331ba4 | 2014-07-11 01:08:27 +0100 | [diff] [blame] | 884 | vnt_fb_opt1[FB_RATE1][current_rate - RATE_18M]; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 885 | |
| 886 | fb_option = AUTO_FB_1; |
| 887 | } |
| 888 | } |
| 889 | |
Malcolm Priestley | 71d764a | 2014-07-05 19:24:27 +0100 | [diff] [blame] | 890 | tx_context->fb_option = fb_option; |
| 891 | |
Malcolm Priestley | 9ec7f2d | 2014-07-10 19:56:15 +0100 | [diff] [blame] | 892 | duration_id = vnt_generate_tx_parameter(tx_context, pkt_type, |
| 893 | current_rate, tx_buffer, &mic_hdr, need_mic, frame_size, |
Malcolm Priestley | 72bf805 | 2014-07-10 19:56:02 +0100 | [diff] [blame] | 894 | need_ack, need_rts); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 895 | |
| 896 | tx_header_size = tx_context->tx_hdr_size; |
| 897 | if (!tx_header_size) { |
| 898 | tx_context->in_use = false; |
| 899 | return -ENOMEM; |
| 900 | } |
| 901 | |
Malcolm Priestley | 5deb1cf | 2014-06-28 23:55:40 +0100 | [diff] [blame] | 902 | tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 903 | |
| 904 | tx_bytes = tx_header_size + tx_body_size; |
| 905 | |
| 906 | memcpy(tx_context->hdr, skb->data, tx_body_size); |
| 907 | |
| 908 | hdr->duration_id = cpu_to_le16(duration_id); |
| 909 | |
| 910 | if (info->control.hw_key) { |
| 911 | tx_key = info->control.hw_key; |
| 912 | if (tx_key->keylen > 0) |
| 913 | vnt_fill_txkey(tx_context, tx_buffer_head->tx_key, |
| 914 | tx_key, skb, tx_body_size, mic_hdr); |
| 915 | } |
| 916 | |
Malcolm Priestley | 1b2bc0a | 2014-07-20 15:33:23 +0100 | [diff] [blame^] | 917 | priv->seq_counter = (le16_to_cpu(hdr->seq_ctrl) & |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 918 | IEEE80211_SCTL_SEQ) >> 4; |
| 919 | |
| 920 | tx_buffer->tx_byte_count = cpu_to_le16(tx_bytes); |
Malcolm Priestley | 71d764a | 2014-07-05 19:24:27 +0100 | [diff] [blame] | 921 | tx_buffer->byPKTNO = tx_context->pkt_no; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 922 | tx_buffer->byType = 0x00; |
| 923 | |
| 924 | tx_bytes += 4; |
| 925 | |
| 926 | tx_context->type = CONTEXT_DATA_PACKET; |
| 927 | tx_context->buf_len = tx_bytes; |
| 928 | |
| 929 | spin_lock_irqsave(&priv->lock, flags); |
| 930 | |
Malcolm Priestley | 476e7d9 | 2014-07-15 19:54:39 +0100 | [diff] [blame] | 931 | if (vnt_tx_context(priv, tx_context) != STATUS_PENDING) { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 932 | spin_unlock_irqrestore(&priv->lock, flags); |
| 933 | return -EIO; |
| 934 | } |
| 935 | |
| 936 | spin_unlock_irqrestore(&priv->lock, flags); |
| 937 | |
| 938 | return 0; |
| 939 | } |
| 940 | |
| 941 | static int vnt_beacon_xmit(struct vnt_private *priv, |
| 942 | struct sk_buff *skb) |
| 943 | { |
| 944 | struct vnt_beacon_buffer *beacon_buffer; |
| 945 | struct vnt_tx_short_buf_head *short_head; |
| 946 | struct ieee80211_tx_info *info; |
| 947 | struct vnt_usb_send_context *context; |
| 948 | struct ieee80211_mgmt *mgmt_hdr; |
| 949 | unsigned long flags; |
| 950 | u32 frame_size = skb->len + 4; |
| 951 | u16 current_rate, count; |
| 952 | |
| 953 | spin_lock_irqsave(&priv->lock, flags); |
| 954 | |
Malcolm Priestley | a032b16 | 2014-07-11 01:08:28 +0100 | [diff] [blame] | 955 | context = vnt_get_free_context(priv); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 956 | if (!context) { |
| 957 | dev_dbg(&priv->usb->dev, "%s No free context!\n", __func__); |
| 958 | spin_unlock_irqrestore(&priv->lock, flags); |
| 959 | return -ENOMEM; |
| 960 | } |
| 961 | |
| 962 | context->skb = skb; |
| 963 | |
| 964 | spin_unlock_irqrestore(&priv->lock, flags); |
| 965 | |
| 966 | beacon_buffer = (struct vnt_beacon_buffer *)&context->data[0]; |
| 967 | short_head = &beacon_buffer->short_head; |
| 968 | |
Malcolm Priestley | 65df77e | 2014-07-20 15:33:11 +0100 | [diff] [blame] | 969 | if (priv->bb_type == BB_TYPE_11A) { |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 970 | current_rate = RATE_6M; |
| 971 | |
| 972 | /* Get SignalField,ServiceField,Length */ |
| 973 | vnt_get_phy_field(priv, frame_size, current_rate, |
| 974 | PK_TYPE_11A, &short_head->ab); |
| 975 | |
| 976 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 977 | short_head->duration = vnt_get_duration_le(priv, |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 978 | PK_TYPE_11A, false); |
| 979 | short_head->time_stamp_off = |
| 980 | vnt_time_stamp_off(priv, current_rate); |
| 981 | } else { |
| 982 | current_rate = RATE_1M; |
| 983 | short_head->fifo_ctl |= FIFOCTL_11B; |
| 984 | |
| 985 | /* Get SignalField,ServiceField,Length */ |
| 986 | vnt_get_phy_field(priv, frame_size, current_rate, |
| 987 | PK_TYPE_11B, &short_head->ab); |
| 988 | |
| 989 | /* Get Duration and TimeStampOff */ |
Malcolm Priestley | 435ae3b | 2014-07-11 01:08:22 +0100 | [diff] [blame] | 990 | short_head->duration = vnt_get_duration_le(priv, |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 991 | PK_TYPE_11B, false); |
| 992 | short_head->time_stamp_off = |
| 993 | vnt_time_stamp_off(priv, current_rate); |
| 994 | } |
| 995 | |
| 996 | /* Generate Beacon Header */ |
| 997 | mgmt_hdr = &beacon_buffer->mgmt_hdr; |
| 998 | memcpy(mgmt_hdr, skb->data, skb->len); |
| 999 | |
| 1000 | /* time stamp always 0 */ |
| 1001 | mgmt_hdr->u.beacon.timestamp = 0; |
| 1002 | |
| 1003 | info = IEEE80211_SKB_CB(skb); |
| 1004 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |
| 1005 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)mgmt_hdr; |
| 1006 | hdr->duration_id = 0; |
Malcolm Priestley | 1b2bc0a | 2014-07-20 15:33:23 +0100 | [diff] [blame^] | 1007 | hdr->seq_ctrl = cpu_to_le16(priv->seq_counter << 4); |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1008 | } |
| 1009 | |
Malcolm Priestley | 1b2bc0a | 2014-07-20 15:33:23 +0100 | [diff] [blame^] | 1010 | priv->seq_counter++; |
| 1011 | if (priv->seq_counter > 0x0fff) |
| 1012 | priv->seq_counter = 0; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1013 | |
| 1014 | count = sizeof(struct vnt_tx_short_buf_head) + skb->len; |
| 1015 | |
| 1016 | beacon_buffer->tx_byte_count = cpu_to_le16(count); |
Malcolm Priestley | 71d764a | 2014-07-05 19:24:27 +0100 | [diff] [blame] | 1017 | beacon_buffer->byPKTNO = context->pkt_no; |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1018 | beacon_buffer->byType = 0x01; |
| 1019 | |
| 1020 | context->type = CONTEXT_BEACON_PACKET; |
| 1021 | context->buf_len = count + 4; /* USB header */ |
| 1022 | |
| 1023 | spin_lock_irqsave(&priv->lock, flags); |
| 1024 | |
Malcolm Priestley | 476e7d9 | 2014-07-15 19:54:39 +0100 | [diff] [blame] | 1025 | if (vnt_tx_context(priv, context) != STATUS_PENDING) |
Malcolm Priestley | d38b13a | 2014-06-25 21:14:23 +0100 | [diff] [blame] | 1026 | ieee80211_free_txskb(priv->hw, context->skb); |
| 1027 | |
| 1028 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1029 | |
| 1030 | return 0; |
| 1031 | } |
| 1032 | |
| 1033 | int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif) |
| 1034 | { |
| 1035 | struct sk_buff *beacon; |
| 1036 | |
| 1037 | beacon = ieee80211_beacon_get(priv->hw, vif); |
| 1038 | if (!beacon) |
| 1039 | return -ENOMEM; |
| 1040 | |
| 1041 | if (vnt_beacon_xmit(priv, beacon)) { |
| 1042 | ieee80211_free_txskb(priv->hw, beacon); |
| 1043 | return -ENODEV; |
| 1044 | } |
| 1045 | |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif, |
| 1050 | struct ieee80211_bss_conf *conf) |
| 1051 | { |
| 1052 | int ret; |
| 1053 | |
| 1054 | vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX); |
| 1055 | |
| 1056 | vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN); |
| 1057 | |
| 1058 | vnt_mac_set_beacon_interval(priv, conf->beacon_int); |
| 1059 | |
| 1060 | vnt_clear_current_tsf(priv); |
| 1061 | |
| 1062 | vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN); |
| 1063 | |
| 1064 | vnt_reset_next_tbtt(priv, conf->beacon_int); |
| 1065 | |
| 1066 | ret = vnt_beacon_make(priv, vif); |
| 1067 | |
| 1068 | return ret; |
| 1069 | } |