90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* NXP Wireless LAN device driver: utility functions
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*
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* Copyright 2011-2020 NXP
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*/
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#ifndef _MWIFIEX_UTIL_H_
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#define _MWIFIEX_UTIL_H_
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struct mwifiex_private;
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struct mwifiex_dma_mapping {
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dma_addr_t addr;
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size_t len;
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};
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struct mwifiex_cb {
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struct mwifiex_dma_mapping dma_mapping;
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union {
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struct mwifiex_rxinfo rx_info;
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struct mwifiex_txinfo tx_info;
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};
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};
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/* size/addr for mwifiex_debug_info */
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#define item_size(n) (sizeof_field(struct mwifiex_debug_info, n))
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#define item_addr(n) (offsetof(struct mwifiex_debug_info, n))
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/* size/addr for struct mwifiex_adapter */
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#define adapter_item_size(n) (sizeof_field(struct mwifiex_adapter, n))
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#define adapter_item_addr(n) (offsetof(struct mwifiex_adapter, n))
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struct mwifiex_debug_data {
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char name[32]; /* variable/array name */
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u32 size; /* size of the variable/array */
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size_t addr; /* address of the variable/array */
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int num; /* number of variables in an array */
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};
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static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb)
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{
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struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
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BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb));
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return &cb->rx_info;
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}
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static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb)
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{
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struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
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return &cb->tx_info;
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}
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static inline void mwifiex_store_mapping(struct sk_buff *skb,
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struct mwifiex_dma_mapping *mapping)
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{
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struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
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memcpy(&cb->dma_mapping, mapping, sizeof(*mapping));
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}
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static inline void mwifiex_get_mapping(struct sk_buff *skb,
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struct mwifiex_dma_mapping *mapping)
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{
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struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
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memcpy(mapping, &cb->dma_mapping, sizeof(*mapping));
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}
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static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb)
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{
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struct mwifiex_dma_mapping mapping;
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mwifiex_get_mapping(skb, &mapping);
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return mapping.addr;
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}
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int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf,
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struct mwifiex_debug_info *info);
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static inline void le16_unaligned_add_cpu(__le16 *var, u16 val)
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{
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put_unaligned_le16(get_unaligned_le16(var) + val, var);
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}
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#endif /* !_MWIFIEX_UTIL_H_ */
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