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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 | ||
bb5097fe XH |
23 | struct mwifiex_private; |
24 | ||
bca463e8 CRL |
25 | struct mwifiex_dma_mapping { |
26 | dma_addr_t addr; | |
27 | size_t len; | |
28 | }; | |
29 | ||
30 | struct mwifiex_cb { | |
31 | struct mwifiex_dma_mapping dma_mapping; | |
32 | union { | |
33 | struct mwifiex_rxinfo rx_info; | |
34 | struct mwifiex_txinfo tx_info; | |
35 | }; | |
36 | }; | |
37 | ||
bb5097fe XH |
38 | /* size/addr for mwifiex_debug_info */ |
39 | #define item_size(n) (FIELD_SIZEOF(struct mwifiex_debug_info, n)) | |
40 | #define item_addr(n) (offsetof(struct mwifiex_debug_info, n)) | |
41 | ||
42 | /* size/addr for struct mwifiex_adapter */ | |
43 | #define adapter_item_size(n) (FIELD_SIZEOF(struct mwifiex_adapter, n)) | |
44 | #define adapter_item_addr(n) (offsetof(struct mwifiex_adapter, n)) | |
45 | ||
46 | struct mwifiex_debug_data { | |
47 | char name[32]; /* variable/array name */ | |
48 | u32 size; /* size of the variable/array */ | |
49 | size_t addr; /* address of the variable/array */ | |
50 | int num; /* number of variables in an array */ | |
51 | }; | |
52 | ||
5e6e3a92 BZ |
53 | static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb) |
54 | { | |
bca463e8 CRL |
55 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; |
56 | ||
57 | BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb)); | |
58 | return &cb->rx_info; | |
5e6e3a92 BZ |
59 | } |
60 | ||
61 | static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb) | |
62 | { | |
bca463e8 CRL |
63 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; |
64 | ||
65 | return &cb->tx_info; | |
d930faee AK |
66 | } |
67 | ||
bca463e8 CRL |
68 | static inline void mwifiex_store_mapping(struct sk_buff *skb, |
69 | struct mwifiex_dma_mapping *mapping) | |
70 | { | |
71 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; | |
72 | ||
73 | memcpy(&cb->dma_mapping, mapping, sizeof(*mapping)); | |
74 | } | |
dbccc92b | 75 | |
bca463e8 CRL |
76 | static inline void mwifiex_get_mapping(struct sk_buff *skb, |
77 | struct mwifiex_dma_mapping *mapping) | |
d930faee | 78 | { |
bca463e8 CRL |
79 | struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; |
80 | ||
81 | memcpy(mapping, &cb->dma_mapping, sizeof(*mapping)); | |
5e6e3a92 | 82 | } |
dbccc92b AD |
83 | |
84 | static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb) | |
85 | { | |
86 | struct mwifiex_dma_mapping mapping; | |
87 | ||
bca463e8 | 88 | mwifiex_get_mapping(skb, &mapping); |
dbccc92b AD |
89 | |
90 | return mapping.addr; | |
91 | } | |
92 | ||
bb5097fe XH |
93 | int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf, |
94 | struct mwifiex_debug_info *info); | |
95 | ||
5e6e3a92 | 96 | #endif /* !_MWIFIEX_UTIL_H_ */ |