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/*
* Marvell Wireless LAN device driver: utility functions
*
* Copyright (C) 2011-2014, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*/
#ifndef _MWIFIEX_UTIL_H_
#define _MWIFIEX_UTIL_H_
struct mwifiex_private;
struct mwifiex_dma_mapping {
dma_addr_t addr;
size_t len;
};
struct mwifiex_cb {
struct mwifiex_dma_mapping dma_mapping;
union {
struct mwifiex_rxinfo rx_info;
struct mwifiex_txinfo tx_info;
};
};
/* size/addr for mwifiex_debug_info */
#define item_size(n) (FIELD_SIZEOF(struct mwifiex_debug_info, n))
#define item_addr(n) (offsetof(struct mwifiex_debug_info, n))
/* size/addr for struct mwifiex_adapter */
#define adapter_item_size(n) (FIELD_SIZEOF(struct mwifiex_adapter, n))
#define adapter_item_addr(n) (offsetof(struct mwifiex_adapter, n))
struct mwifiex_debug_data {
char name[32]; /* variable/array name */
u32 size; /* size of the variable/array */
size_t addr; /* address of the variable/array */
int num; /* number of variables in an array */
};
static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb)
{
struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb));
return &cb->rx_info;
}
static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb)
{
struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
return &cb->tx_info;
}
static inline void mwifiex_store_mapping(struct sk_buff *skb,
struct mwifiex_dma_mapping *mapping)
{
struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
memcpy(&cb->dma_mapping, mapping, sizeof(*mapping));
}
static inline void mwifiex_get_mapping(struct sk_buff *skb,
struct mwifiex_dma_mapping *mapping)
{
struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb;
memcpy(mapping, &cb->dma_mapping, sizeof(*mapping));
}
static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb)
{
struct mwifiex_dma_mapping mapping;
mwifiex_get_mapping(skb, &mapping);
return mapping.addr;
}
int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf,
struct mwifiex_debug_info *info);
static inline void le16_unaligned_add_cpu(__le16 *var, u16 val)
{
put_unaligned_le16(get_unaligned_le16(var) + val, var);
}
#endif /* !_MWIFIEX_UTIL_H_ */
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