134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
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/**
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* rwnx_ipc_utils.h
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*
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* IPC utility function declarations
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*
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* Copyright (C) RivieraWaves 2012-2019
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*/
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#ifndef _RWNX_IPC_UTILS_H_
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#define _RWNX_IPC_UTILS_H_
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#include <linux/dma-mapping.h>
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#include <linux/dmapool.h>
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#include <linux/skbuff.h>
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#include "aicwf_debug.h"
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#include "lmac_msg.h"
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#if 0
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#ifdef CONFIG_RWNX_DBG
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/* #define RWNX_DBG(format, arg...) pr_warn(format, ## arg) */
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#define RWNX_DBG printk
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#else
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#define RWNX_DBG(a...) do {} while (0)
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#endif
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#define RWNX_FN_ENTRY_STR ">>> %s()\n", __func__
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#endif
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enum rwnx_dev_flag {
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RWNX_DEV_RESTARTING,
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RWNX_DEV_STACK_RESTARTING,
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RWNX_DEV_STARTED,
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};
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struct rwnx_hw;
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struct rwnx_sta;
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/**
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* struct rwnx_ipc_elem - Generic IPC buffer of fixed size
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*
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* @addr: Host address of the buffer.
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* @dma_addr: DMA address of the buffer.
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*/
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struct rwnx_ipc_elem {
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void *addr;
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dma_addr_t dma_addr;
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};
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/**
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* struct rwnx_ipc_elem_pool - Generic pool of IPC buffers of fixed size
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*
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* @nb: Number of buffers currenlty allocated in the pool
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* @buf: Array of buffers (size of array is @nb)
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* @pool: DMA pool in which buffers have been allocated
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*/
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struct rwnx_ipc_elem_pool {
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int nb;
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struct rwnx_ipc_elem *buf;
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struct dma_pool *pool;
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};
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/**
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* struct rwnx_ipc_elem - Generic IPC buffer of variable size
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*
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* @addr: Host address of the buffer.
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* @dma_addr: DMA address of the buffer.
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* @size: Size, in bytes, of the buffer
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*/
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struct rwnx_ipc_elem_var {
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void *addr;
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dma_addr_t dma_addr;
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size_t size;
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};
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/**
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* struct rwnx_ipc_dbgdump_elem - IPC buffer for debug dump
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*
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* @mutex: Mutex to protect access to debug dump
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* @buf: IPC buffer
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*/
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struct rwnx_ipc_dbgdump_elem {
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struct mutex mutex;
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struct rwnx_ipc_elem_var buf;
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};
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static const u32 rwnx_rxbuff_pattern = 0xCAFEFADE;
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/*
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* Maximum Length of Radiotap header vendor specific data(in bytes)
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*/
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#define RADIOTAP_HDR_VEND_MAX_LEN 16
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/*
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* Maximum Radiotap Header Length without vendor specific data (in bytes)
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*/
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#define RADIOTAP_HDR_MAX_LEN 80
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/*
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* Unsupported HT Frame data length (in bytes)
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*/
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#define UNSUP_RX_VEC_DATA_LEN 2
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/**
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* struct rwnx_ipc_skb_elem - IPC buffer for SKB element
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*
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* @skb: Pointer to the skb buffer allocated
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* @dma_addr: DMA address of the data buffer fo skb
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*
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*/
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struct rwnx_ipc_skb_elem {
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struct sk_buff *skb;
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dma_addr_t dma_addr;
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};
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#ifdef CONFIG_RWNX_FULLMAC
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/* Maximum number of rx buffer the fw may use at the same time */
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#define RWNX_RXBUFF_MAX (64 * NX_REMOTE_STA_MAX)
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/**
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* struct rwnx_ipc_rxbuf_elems - IPC buffers for RX
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*
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* @skb: Array of buffer push to FW.
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* @idx: Index of the last pushed skb.(Use to find the next free entry quicker)
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*
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* Note: contrary to softmac version, dma_addr are stored inside skb->cb.
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*/
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struct rwnx_ipc_rxbuf_elems {
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struct sk_buff *skb[RWNX_RXBUFF_MAX];
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int idx;
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};
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#endif /* CONFIG_RWNX_FULLMAC */
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#endif /* _RWNX_IPC_UTILS_H_ */
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