/* SPDX-License-Identifier: GPL-2.0 */
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/******************************************************************************
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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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******************************************************************************/
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#ifndef _RTW_RECV_H_
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#define _RTW_RECV_H_
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#ifdef CONFIG_SINGLE_RECV_BUF
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#define NR_RECVBUFF (1)
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#else
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#define NR_RECVBUFF (8)
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#endif /* CONFIG_SINGLE_RECV_BUF */
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#define NR_PREALLOC_RECV_SKB (8)
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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 DRVINFO_SZ 4 /* unit is 8bytes */
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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 PHY_RSSI_SLID_WIN_MAX 100
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#define PHY_LINKQUALITY_SLID_WIN_MAX 20
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#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
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#define RX_MPDU_QUEUE 0
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#define RX_CMD_QUEUE 1
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#define RX_MAX_QUEUE 2
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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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_timer 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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struct phy_info {
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u8 rx_pwd_ba11;
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u8 SignalQuality; /* in 0-100 index. */
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s8 rx_mimo_signal_quality[4]; /* per-path's EVM */
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u8 RxMIMOEVMdbm[4]; /* per-path's EVM dbm */
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u8 rx_mimo_signal_strength[4];/* in 0~100 index */
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u16 Cfo_short[4]; /* per-path's Cfo_short */
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u16 Cfo_tail[4]; /* per-path's Cfo_tail */
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s8 RxPower; /* in dBm Translate from PWdB */
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s8 RecvSignalPower;/* Real power in dBm for this packet, no beautification and aggregation. Keep this raw info to be used for the other procedures. */
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u8 bt_rx_rssi_percentage;
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u8 SignalStrength; /* in 0-100 index. */
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s8 RxPwr[4]; /* per-path's pwdb */
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u8 RxSNR[4]; /* per-path's SNR */
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u8 BandWidth;
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u8 btCoexPwrAdjust;
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};
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#ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
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struct rx_raw_rssi {
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u8 data_rate;
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u8 pwdball;
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s8 pwr_all;
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u8 mimo_signal_strength[4];/* in 0~100 index */
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u8 mimo_signal_quality[4];
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s8 ofdm_pwr[4];
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u8 ofdm_snr[4];
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};
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#endif
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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, 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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/* ifdef CONFIG_TCP_CSUM_OFFLOAD_RX */
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u8 tcpchk_valid; /* 0: invalid, 1: valid */
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u8 ip_chkrpt; /* 0: incorrect, 1: correct */
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u8 tcp_chkrpt; /* 0: incorrect, 1: correct */
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/* endif */
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u8 key_index;
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u8 data_rate;
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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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/*
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u8 signal_qual;
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s8 rx_mimo_signal_qual[2];
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u8 signal_strength;
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u32 rx_pwd_ba11;
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s32 RecvSignalPower;
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*/
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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_WIN_SIZE 128 */
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/* define REORDER_ENTRY_NUM 128 */
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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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#ifndef BUF_DESC_ARCH
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__le32 rxdw4;
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__le32 rxdw5;
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#endif /* if BUF_DESC_ARCH is defined, rx_buf_desc occupy 4 double words */
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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); 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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_lock lock;
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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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uint rx_icv_err;
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uint rx_largepacket_crcerr;
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uint rx_smallpacket_crcerr;
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uint rx_middlepacket_crcerr;
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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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#ifdef CONFIG_RX_INDICATE_QUEUE
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struct task rx_indicate_tasklet;
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struct ifqueue rx_indicate_queue;
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#endif /* CONFIG_RX_INDICATE_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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struct __queue recv_buf_pending_queue;
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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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u8 signal_strength;
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u8 signal_qual;
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s8 rssi; /* translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength); */
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#ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
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struct rx_raw_rssi raw_rssi_info;
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#endif
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/* s8 rxpwdb; */
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s16 noise;
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/* int RxSNRdB[2]; */
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/* s8 RxRssi[2]; */
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/* int FalseAlmCnt_all; */
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_timer signal_stat_timer;
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u32 signal_stat_sampling_interval;
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/* u32 signal_stat_converging_constant; */
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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) _set_timer(&(recvpriv)->signal_stat_timer, (recvpriv)->signal_stat_sampling_interval)
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struct sta_recv_priv {
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_lock lock;
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sint option;
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/* struct __queue blk_strms[MAX_RX_NUMBLKS]; */
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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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/* uint sta_rx_bytes; */
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/* uint sta_rx_pkts; */
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/* uint sta_rx_fail; */
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};
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struct recv_buf {
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struct list_head list;
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_lock recvbuf_lock;
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u32 ref_cnt;
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struct adapter *adapter;
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u8 *pbuf;
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u8 *pallocated_buf;
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u32 len;
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u8 *phead;
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u8 *pdata;
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u8 *ptail;
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u8 *pend;
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_pkt *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_hdr {
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struct list_head list;
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#ifndef CONFIG_BSD_RX_USE_MBUF
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struct sk_buff *pkt;
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struct sk_buff *pkt_newalloc;
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#else /* CONFIG_BSD_RX_USE_MBUF */
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_pkt *pkt;
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_pkt *pkt_newalloc;
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#endif /* CONFIG_BSD_RX_USE_MBUF */
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struct adapter *adapter;
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u8 fragcnt;
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int frame_tag;
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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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void *precvbuf;
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/* */
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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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union recv_frame {
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union{
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struct list_head list;
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struct recv_frame_hdr hdr;
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uint mem[RECVFRAME_HDR_ALIGN>>2];
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} u;
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/* uint mem[MAX_RXSZ>>2]; */
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};
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enum RX_PACKET_TYPE {
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NORMAL_RX,/* Normal rx packet */
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TX_REPORT1,/* CCX */
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TX_REPORT2,/* TX RPT */
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HIS_REPORT,/* USB HISR RPT */
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C2H_PACKET
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};
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extern union recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue); /* get a free recv_frame from pfree_recv_queue */
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extern union recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue); /* get a free recv_frame from pfree_recv_queue */
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extern int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue);
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#define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue)
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extern int _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue);
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extern int rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue);
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extern void rtw_free_recvframe_queue(struct __queue *pframequeue, struct __queue *pfree_recv_queue);
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u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter);
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sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue);
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sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue);
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struct recv_buf *rtw_dequeue_recvbuf(struct __queue *queue);
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void rtw_reordering_ctrl_timeout_handler(struct timer_list *t);
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static inline u8 *get_rxmem(union 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->u.hdr.rx_head;
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}
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static inline u8 *get_recvframe_data(union recv_frame *precvframe)
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{
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/* alwasy return rx_data */
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if (precvframe == NULL)
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return NULL;
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return precvframe->u.hdr.rx_data;
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}
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static inline u8 *recvframe_pull(union recv_frame *precvframe, sint 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 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->u.hdr.rx_data += sz;
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if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail)
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{
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precvframe->u.hdr.rx_data -= sz;
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return NULL;
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}
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precvframe->u.hdr.len -= sz;
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return precvframe->u.hdr.rx_data;
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}
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static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz)
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{
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/* rx_tai += sz; move rx_tail sz bytes hereafter */
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/* used for append sz bytes from ptr to rx_tail, update rx_tail 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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unsigned char * prev_rx_tail;
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if (precvframe == NULL)
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return NULL;
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prev_rx_tail = precvframe->u.hdr.rx_tail;
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precvframe->u.hdr.rx_tail += sz;
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if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end)
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{
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precvframe->u.hdr.rx_tail = prev_rx_tail;
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return NULL;
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}
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precvframe->u.hdr.len += sz;
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return precvframe->u.hdr.rx_tail;
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}
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static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint 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 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->u.hdr.rx_tail -= sz;
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if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data)
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{
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precvframe->u.hdr.rx_tail += sz;
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return NULL;
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}
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precvframe->u.hdr.len -= sz;
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return precvframe->u.hdr.rx_tail;
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}
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static inline union recv_frame *rxmem_to_recvframe(u8 *rxmem)
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{
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/* due to the design of 2048 bytes alignment of recv_frame, we can reference the union recv_frame */
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/* from any given member of recv_frame. */
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/* rxmem indicates the any member/address in recv_frame */
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return (union recv_frame*)(((SIZE_PTR)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN);
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}
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static inline sint get_recvframe_len(union recv_frame *precvframe)
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{
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return precvframe->u.hdr.len;
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}
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static inline s32 translate_percentage_to_dbm(u32 SignalStrengthIndex)
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{
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s32 SignalPower; /* in dBm. */
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#ifdef CONFIG_SKIP_SIGNAL_SCALE_MAPPING
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/* Translate to dBm (x =y-100) */
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SignalPower = SignalStrengthIndex - 100;
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#else
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/* Translate to dBm (x = 0.5y-95). */
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SignalPower = (s32)((SignalStrengthIndex + 1) >> 1);
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SignalPower -= 95;
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#endif
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return SignalPower;
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}
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struct sta_info;
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extern void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv);
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extern void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame);
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#endif
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