projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5e6e3a92 BZ |
1 | /* |
| 2 | * Marvell Wireless LAN device driver: utility functions | |
| 3 | * | |
| 65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
| 5e6e3a92 BZ |
5 | * |
| 6 | * This software file (the "File") is distributed by Marvell International | |
| 7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
| 8 | * (the "License"). You may use, redistribute and/or modify this File in | |
| 9 | * accordance with the terms and conditions of the License, a copy of which | |
| 10 | * is available by writing to the Free Software Foundation, Inc., | |
| 11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
| 12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
| 13 | * | |
| 14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
| 16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
| 17 | * this warranty disclaimer. | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef _MWIFIEX_UTIL_H_ | |
| 21 | #define _MWIFIEX_UTIL_H_ | |
| 22 | ||
| bca463e8 CRL |
23 | struct mwifiex_dma_mapping { |
| 24 | dma_addr_t addr; | |
| 25 | size_t len; | |
| 26 | }; | |
| 27 | ||
| 28 | struct mwifiex_cb { | |
| 29 | struct mwifiex_dma_mapping dma_mapping; | |
| 30 | union { | |
| 31 | struct mwifiex_rxinfo rx_info; | |
| 32 | struct mwifiex_txinfo tx_info; | |
| 33 | }; | |
| 34 | }; | |
| 35 | ||
| 5e6e3a92 BZ |
36 | static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb) |
| 37 | { | |
| bca463e8 CRL |
38 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; |
| 39 | ||
| 40 | BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb)); | |
| 41 | return &cb->rx_info; | |
| 5e6e3a92 BZ |
42 | } |
| 43 | ||
| 44 | static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb) | |
| 45 | { | |
| bca463e8 CRL |
46 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; |
| 47 | ||
| 48 | return &cb->tx_info; | |
| d930faee AK |
49 | } |
| 50 | ||
| bca463e8 CRL |
51 | static inline void mwifiex_store_mapping(struct sk_buff *skb, |
| 52 | struct mwifiex_dma_mapping *mapping) | |
| 53 | { | |
| 54 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; | |
| 55 | ||
| 56 | memcpy(&cb->dma_mapping, mapping, sizeof(*mapping)); | |
| 57 | } | |
| dbccc92b | 58 | |
| bca463e8 CRL |
59 | static inline void mwifiex_get_mapping(struct sk_buff *skb, |
| 60 | struct mwifiex_dma_mapping *mapping) | |
| d930faee | 61 | { |
| bca463e8 CRL |
62 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; |
| 63 | ||
| 64 | memcpy(mapping, &cb->dma_mapping, sizeof(*mapping)); | |
| 5e6e3a92 | 65 | } |
| dbccc92b AD |
66 | |
| 67 | static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb) | |
| 68 | { | |
| 69 | struct mwifiex_dma_mapping mapping; | |
| 70 | ||
| bca463e8 | 71 | mwifiex_get_mapping(skb, &mapping); |
| dbccc92b AD |
72 | |
| 73 | return mapping.addr; | |
| 74 | } | |
| 75 | ||
| 5e6e3a92 | 76 | #endif /* !_MWIFIEX_UTIL_H_ */ |