https://github.com/torvalds/linux
Tip revision: d8ec26d7f8287f5788a494f56e8814210f0e64be authored by Linus Torvalds on 20 January 2014, 02:40:07 UTC
Linux 3.13
Linux 3.13
Tip revision: d8ec26d
rtl871x_recv.h
#ifndef _RTL871X_RECV_H_
#define _RTL871X_RECV_H_
#include "osdep_service.h"
#include "drv_types.h"
#define NR_RECVFRAME 256
#define RXFRAME_ALIGN 8
#define RXFRAME_ALIGN_SZ (1 << RXFRAME_ALIGN)
#define MAX_SUBFRAME_COUNT 64
#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
/* for Rx reordering buffer control */
struct recv_reorder_ctrl {
struct _adapter *padapter;
u16 indicate_seq; /* =wstart_b, init_value=0xffff */
u16 wend_b;
u8 wsize_b;
struct __queue pending_recvframe_queue;
struct timer_list reordering_ctrl_timer;
};
struct stainfo_rxcache {
u16 tid_rxseq[16];
};
#define PHY_RSSI_SLID_WIN_MAX 100
#define PHY_LINKQUALITY_SLID_WIN_MAX 20
struct smooth_rssi_data {
u32 elements[100]; /* array to store values */
u32 index; /* index to current array to store */
u32 total_num; /* num of valid elements */
u32 total_val; /* sum of valid elements */
};
struct rx_pkt_attrib {
u8 amsdu;
u8 order;
u8 qos;
u8 to_fr_ds;
u8 frag_num;
u16 seq_num;
u8 pw_save;
u8 mfrag;
u8 mdata;
u8 privacy; /* in frame_ctrl field */
u8 bdecrypted;
int hdrlen; /* the WLAN Header Len */
int encrypt; /* 0 no encrypt. != 0 encrypt algorith */
int iv_len;
int icv_len;
int priority;
int ack_policy;
u8 crc_err;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
u8 ta[ETH_ALEN];
u8 ra[ETH_ALEN];
u8 bssid[ETH_ALEN];
u8 tcpchk_valid; /* 0: invalid, 1: valid */
u8 ip_chkrpt; /* 0: incorrect, 1: correct */
u8 tcp_chkrpt; /* 0: incorrect, 1: correct */
u8 signal_qual;
s8 rx_mimo_signal_qual[2];
u8 mcs_rate;
u8 htc;
u8 signal_strength;
};
/*
accesser of recv_priv: recv_entry(dispatch / passive level);
recv_thread(passive) ; returnpkt(dispatch)
; halt(passive) ;
using enter_critical section to protect
*/
struct recv_priv {
spinlock_t lock;
struct __queue free_recv_queue;
struct __queue recv_pending_queue;
u8 *pallocated_frame_buf;
u8 *precv_frame_buf;
uint free_recvframe_cnt;
struct _adapter *adapter;
uint rx_bytes;
uint rx_pkts;
uint rx_drop;
uint rx_icv_err;
uint rx_largepacket_crcerr;
uint rx_smallpacket_crcerr;
uint rx_middlepacket_crcerr;
u8 rx_pending_cnt;
uint ff_hwaddr;
struct tasklet_struct recv_tasklet;
struct sk_buff_head free_recv_skb_queue;
struct sk_buff_head rx_skb_queue;
u8 *pallocated_recv_buf;
u8 *precv_buf; /* 4 alignment */
struct __queue free_recv_buf_queue;
u32 free_recv_buf_queue_cnt;
/* For the phy informatiom */
s8 rssi;
u8 signal;
u8 noise;
u8 fw_rssi;
struct smooth_rssi_data signal_qual_data;
struct smooth_rssi_data signal_strength_data;
};
struct sta_recv_priv {
spinlock_t lock;
sint option;
struct __queue defrag_q; /* keeping the fragment frame until defrag */
struct stainfo_rxcache rxcache;
uint sta_rx_bytes;
uint sta_rx_pkts;
uint sta_rx_fail;
};
#include "rtl8712_recv.h"
/* get a free recv_frame from pfree_recv_queue */
union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue);
int r8712_free_recvframe(union recv_frame *precvframe,
struct __queue *pfree_recv_queue);
void r8712_free_recvframe_queue(struct __queue *pframequeue,
struct __queue *pfree_recv_queue);
int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe);
int recv_func(struct _adapter *padapter, void *pcontext);
static inline u8 *get_rxmem(union recv_frame *precvframe)
{
/* always return rx_head... */
if (precvframe == NULL)
return NULL;
return precvframe->u.hdr.rx_head;
}
static inline u8 *get_recvframe_data(union recv_frame *precvframe)
{
/* always return rx_data */
if (precvframe == NULL)
return NULL;
return precvframe->u.hdr.rx_data;
}
static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz)
{
/* used for extract sz bytes from rx_data, update rx_data and return
* the updated rx_data to the caller */
if (precvframe == NULL)
return NULL;
precvframe->u.hdr.rx_data += sz;
if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) {
precvframe->u.hdr.rx_data -= sz;
return NULL;
}
precvframe->u.hdr.len -= sz;
return precvframe->u.hdr.rx_data;
}
static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz)
{
/* used for append sz bytes from ptr to rx_tail, update rx_tail and
* return the updated rx_tail to the caller
* after putting, rx_tail must be still larger than rx_end. */
unsigned char *prev_rx_tail;
if (precvframe == NULL)
return NULL;
prev_rx_tail = precvframe->u.hdr.rx_tail;
precvframe->u.hdr.rx_tail += sz;
if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) {
precvframe->u.hdr.rx_tail -= sz;
return NULL;
}
precvframe->u.hdr.len += sz;
return precvframe->u.hdr.rx_tail;
}
static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz)
{
/* rmv data from rx_tail (by yitsen)
* used for extract sz bytes from rx_end, update rx_end and return the
* updated rx_end to the caller
* after pulling, rx_end must be still larger than rx_data. */
if (precvframe == NULL)
return NULL;
precvframe->u.hdr.rx_tail -= sz;
if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) {
precvframe->u.hdr.rx_tail += sz;
return NULL;
}
precvframe->u.hdr.len -= sz;
return precvframe->u.hdr.rx_tail;
}
struct sta_info;
void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
sint r8712_recvframe_chkmic(struct _adapter *adapter,
union recv_frame *precvframe);
union recv_frame *r8712_decryptor(struct _adapter *adapter,
union recv_frame *precv_frame);
union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter,
union recv_frame *precv_frame);
int r8712_validate_recv_frame(struct _adapter *adapter,
union recv_frame *precv_frame);
union recv_frame *r8712_portctrl(struct _adapter *adapter,
union recv_frame *precv_frame);
#endif