mirror of
https://github.com/lwfinger/rtl8188eu.git
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365 lines
8.8 KiB
C
365 lines
8.8 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#ifndef _RTW_RECV_H_
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#define _RTW_RECV_H_
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#include <osdep_service.h>
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#include <drv_types.h>
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#define NR_RECVFRAME 256
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#define RXFRAME_ALIGN 8
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#define RXFRAME_ALIGN_SZ (1<<RXFRAME_ALIGN)
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#define MAX_RXFRAME_CNT 512
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#define MAX_RX_NUMBLKS (32)
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#define RECVFRAME_HDR_ALIGN 128
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#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
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#define MAX_SUBFRAME_COUNT 64
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/* for Rx reordering buffer control */
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struct recv_reorder_ctrl {
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struct adapter *padapter;
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u8 enable;
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u16 indicate_seq;/* wstart_b, init_value=0xffff */
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u16 wend_b;
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u8 wsize_b;
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struct __queue pending_recvframe_queue;
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struct timer_list reordering_ctrl_timer;
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};
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struct stainfo_rxcache {
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u16 tid_rxseq[16];
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/*
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unsigned short tid0_rxseq;
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unsigned short tid1_rxseq;
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unsigned short tid2_rxseq;
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unsigned short tid3_rxseq;
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unsigned short tid4_rxseq;
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unsigned short tid5_rxseq;
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unsigned short tid6_rxseq;
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unsigned short tid7_rxseq;
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unsigned short tid8_rxseq;
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unsigned short tid9_rxseq;
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unsigned short tid10_rxseq;
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unsigned short tid11_rxseq;
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unsigned short tid12_rxseq;
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unsigned short tid13_rxseq;
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unsigned short tid14_rxseq;
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unsigned short tid15_rxseq;
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*/
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};
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struct smooth_rssi_data {
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u32 elements[100]; /* array to store values */
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u32 index; /* index to current array to store */
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u32 total_num; /* num of valid elements */
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u32 total_val; /* sum of valid elements */
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};
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struct signal_stat {
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u8 update_req; /* used to indicate */
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u8 avg_val; /* avg of valid elements */
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u32 total_num; /* num of valid elements */
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u32 total_val; /* sum of valid elements */
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};
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#define MAX_PATH_NUM_92CS 3
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struct phy_info {
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u8 RxPWDBAll;
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u8 SignalQuality; /* in 0-100 index. */
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u8 RxMIMOSignalQuality[MAX_PATH_NUM_92CS]; /* EVM */
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u8 RxMIMOSignalStrength[MAX_PATH_NUM_92CS];/* in 0~100 index */
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s8 RxPower; /* in dBm Translate from PWdB */
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/* Real power in dBm for this packet, no beautification and aggregation.
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* Keep this raw info to be used for the other procedures. */
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s8 recvpower;
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u8 BTRxRSSIPercentage;
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u8 SignalStrength; /* in 0-100 index. */
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u8 RxPwr[MAX_PATH_NUM_92CS];/* per-path's pwdb */
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u8 RxSNR[MAX_PATH_NUM_92CS];/* per-path's SNR */
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};
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struct rx_pkt_attrib {
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u16 pkt_len;
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u8 physt;
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u8 drvinfo_sz;
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u8 shift_sz;
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u8 hdrlen; /* the WLAN Header Len */
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u8 to_fr_ds;
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u8 amsdu;
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u8 qos;
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u8 priority;
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u8 pw_save;
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u8 mdata;
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u16 seq_num;
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u8 frag_num;
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u8 mfrag;
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u8 order;
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u8 privacy; /* in frame_ctrl field */
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u8 bdecrypted;
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u8 encrypt; /* when 0 indicate no encrypt. when non-zero,
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* indicate the encrypt algorith */
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u8 iv_len;
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u8 icv_len;
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u8 crc_err;
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u8 icv_err;
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u16 eth_type;
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u8 dst[ETH_ALEN];
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u8 src[ETH_ALEN];
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u8 ta[ETH_ALEN];
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u8 ra[ETH_ALEN];
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u8 bssid[ETH_ALEN];
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u8 ack_policy;
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u8 key_index;
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u8 mcs_rate;
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u8 rxht;
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u8 sgi;
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u8 pkt_rpt_type;
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u32 MacIDValidEntry[2]; /* 64 bits present 64 entry. */
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struct phy_info phy_info;
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};
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/* These definition is used for Rx packet reordering. */
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#define SN_LESS(a, b) (((a - b) & 0x800) != 0)
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#define SN_EQUAL(a, b) (a == b)
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#define REORDER_WAIT_TIME (50) /* (ms) */
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#define RECVBUFF_ALIGN_SZ 8
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#define RXDESC_SIZE 24
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#define RXDESC_OFFSET RXDESC_SIZE
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struct recv_stat {
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__le32 rxdw0;
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__le32 rxdw1;
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__le32 rxdw2;
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__le32 rxdw3;
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__le32 rxdw4;
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__le32 rxdw5;
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};
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#define EOR BIT(30)
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/*
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accesser of recv_priv: rtw_recv_entry(dispatch / passive level);
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recv_thread(passive) ; returnpkt(dispatch)
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; halt(passive) ;
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using enter_critical section to protect
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*/
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struct recv_priv {
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struct __queue free_recv_queue;
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struct __queue recv_pending_queue;
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struct __queue uc_swdec_pending_queue;
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u8 *pallocated_frame_buf;
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u8 *precv_frame_buf;
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uint free_recvframe_cnt;
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struct adapter *adapter;
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u32 bIsAnyNonBEPkts;
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u64 rx_bytes;
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u64 rx_pkts;
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u64 rx_drop;
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u64 last_rx_bytes;
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uint ff_hwaddr;
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u8 rx_pending_cnt;
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struct tasklet_struct irq_prepare_beacon_tasklet;
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struct tasklet_struct recv_tasklet;
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struct sk_buff_head free_recv_skb_queue;
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struct sk_buff_head rx_skb_queue;
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u8 *pallocated_recv_buf;
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u8 *precv_buf; /* 4 alignment */
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struct __queue free_recv_buf_queue;
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u32 free_recv_buf_queue_cnt;
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/* For display the phy informatiom */
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u8 is_signal_dbg; /* for debug */
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u8 signal_strength_dbg; /* for debug */
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s8 rssi;
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s8 rxpwdb;
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u8 signal_strength;
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u8 signal_qual;
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u8 noise;
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s8 RxRssi[2];
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struct timer_list signal_stat_timer;
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u32 signal_stat_sampling_interval;
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struct signal_stat signal_qual_data;
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struct signal_stat signal_strength_data;
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};
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#define rtw_set_signal_stat_timer(recvpriv) \
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_set_timer(&(recvpriv)->signal_stat_timer, \
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(recvpriv)->signal_stat_sampling_interval)
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struct sta_recv_priv {
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spinlock_t lock;
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int option;
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struct __queue defrag_q; /* keeping the fragment frame until defrag */
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struct stainfo_rxcache rxcache;
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};
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struct recv_buf {
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struct adapter *adapter;
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struct urb *purb;
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struct sk_buff *pskb;
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u8 reuse;
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};
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/*
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head ----->
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data ----->
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payload
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tail ----->
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end ----->
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len = (unsigned int )(tail - data);
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*/
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struct recv_frame {
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struct list_head list;
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struct sk_buff *pkt;
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struct sk_buff *pkt_newalloc;
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struct adapter *adapter;
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struct rx_pkt_attrib attrib;
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uint len;
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u8 *rx_head;
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u8 *rx_data;
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u8 *rx_tail;
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u8 *rx_end;
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struct sta_info *psta;
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/* for A-MPDU Rx reordering buffer control */
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struct recv_reorder_ctrl *preorder_ctrl;
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};
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struct recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue);
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struct recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue);
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void rtw_init_recvframe(struct recv_frame *precvframe,
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struct recv_priv *precvpriv);
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int rtw_free_recvframe(struct recv_frame *precvframe,
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struct __queue *pfree_recv_queue);
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#define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
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int _rtw_enqueue_recvframe(struct recv_frame *precvframe,
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struct __queue *queue);
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int rtw_enqueue_recvframe(struct recv_frame *precvframe, struct __queue *queue);
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void rtw_free_recvframe_queue(struct __queue *pframequeue,
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struct __queue *pfree_recv_queue);
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u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter);
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void rtw_reordering_ctrl_timeout_handler(void *pcontext);
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static inline u8 *get_rxmem(struct recv_frame *precvframe)
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{
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/* always return rx_head... */
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if (precvframe == NULL)
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return NULL;
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return precvframe->rx_head;
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}
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static inline u8 *recvframe_pull(struct recv_frame *precvframe, int sz)
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{
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/* rx_data += sz; move rx_data sz bytes hereafter */
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/* used for extract sz bytes from rx_data, update rx_data and return
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* the updated rx_data to the caller */
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if (precvframe == NULL)
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return NULL;
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precvframe->rx_data += sz;
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if (precvframe->rx_data > precvframe->rx_tail) {
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precvframe->rx_data -= sz;
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return NULL;
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}
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precvframe->len -= sz;
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return precvframe->rx_data;
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}
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static inline u8 *recvframe_put(struct recv_frame *precvframe, int sz)
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{
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/* used for append sz bytes from ptr to rx_tail, update rx_tail
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* and return the updated rx_tail to the caller */
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/* after putting, rx_tail must be still larger than rx_end. */
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if (precvframe == NULL)
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return NULL;
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precvframe->rx_tail += sz;
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if (precvframe->rx_tail > precvframe->rx_end) {
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precvframe->rx_tail -= sz;
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return NULL;
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}
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precvframe->len += sz;
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return precvframe->rx_tail;
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}
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static inline u8 *recvframe_pull_tail(struct recv_frame *precvframe, int sz)
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{
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/* rmv data from rx_tail (by yitsen) */
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/* used for extract sz bytes from rx_end, update rx_end and return
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* the updated rx_end to the caller */
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/* after pulling, rx_end must be still larger than rx_data. */
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if (precvframe == NULL)
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return NULL;
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precvframe->rx_tail -= sz;
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if (precvframe->rx_tail < precvframe->rx_data) {
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precvframe->rx_tail += sz;
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return NULL;
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}
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precvframe->len -= sz;
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return precvframe->rx_tail;
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}
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static inline s32 translate_percentage_to_dbm(u32 sig_stren_index)
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{
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s32 power; /* in dBm. */
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/* Translate to dBm (x=0.5y-95). */
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power = (s32)((sig_stren_index + 1) >> 1);
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power -= 95;
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return power;
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}
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struct sta_info;
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void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
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void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame);
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#endif
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