OpenWrt – Blame information for rev 4
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Rev | Author | Line No. | Line |
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4 | office | 1 | /* |
2 | * Atheros AR71xx built-in ethernet mac driver |
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3 | * Special support for the Atheros ar8216 switch chip |
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4 | * |
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5 | * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org> |
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6 | * |
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7 | * Based on Atheros' AG7100 driver |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify it |
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10 | * under the terms of the GNU General Public License version 2 as published |
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11 | * by the Free Software Foundation. |
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12 | */ |
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13 | |||
14 | #include "ag71xx.h" |
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15 | |||
16 | #define AR8216_PACKET_TYPE_MASK 0xf |
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17 | #define AR8216_PACKET_TYPE_NORMAL 0 |
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18 | |||
19 | #define AR8216_HEADER_LEN 2 |
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20 | |||
21 | void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb) |
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22 | { |
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23 | skb_push(skb, AR8216_HEADER_LEN); |
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24 | skb->data[0] = 0x10; |
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25 | skb->data[1] = 0x80; |
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26 | } |
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27 | |||
28 | int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb, |
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29 | int pktlen) |
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30 | { |
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31 | u8 type; |
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32 | |||
33 | type = skb->data[1] & AR8216_PACKET_TYPE_MASK; |
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34 | switch (type) { |
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35 | case AR8216_PACKET_TYPE_NORMAL: |
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36 | break; |
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37 | |||
38 | default: |
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39 | return -EINVAL; |
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40 | } |
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41 | |||
42 | skb_pull(skb, AR8216_HEADER_LEN); |
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43 | return 0; |
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44 | } |