root/drivers/staging/rtl8712/rtl8712_recv.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   5  *
   6  * Modifications for inclusion into the Linux staging tree are
   7  * Copyright(c) 2010 Larry Finger. All rights reserved.
   8  *
   9  * Contact information:
  10  * WLAN FAE <wlanfae@realtek.com>
  11  * Larry Finger <Larry.Finger@lwfinger.net>
  12  *
  13  ******************************************************************************/
  14 #ifndef _RTL8712_RECV_H_
  15 #define _RTL8712_RECV_H_
  16 
  17 #include "osdep_service.h"
  18 #include "drv_types.h"
  19 
  20 /* Realtek's v2.6.6 reduced this to 4. However, under heavy network and CPU
  21  * loads, even 8 receive buffers might not be enough; cutting it to 4 seemed
  22  * unwise.
  23  */
  24 #define NR_RECVBUFF (8)
  25 
  26 #define NR_PREALLOC_RECV_SKB (8)
  27 #define RXDESC_SIZE     24
  28 #define RXDESC_OFFSET RXDESC_SIZE
  29 #define RECV_BLK_SZ 512
  30 #define RECV_BLK_CNT 16
  31 #define RECV_BLK_TH RECV_BLK_CNT
  32 #define MAX_RECVBUF_SZ 9100
  33 #define RECVBUFF_ALIGN_SZ 512
  34 #define RSVD_ROOM_SZ (0)
  35 /*These definition is used for Rx packet reordering.*/
  36 #define SN_LESS(a, b)           (((a-b) & 0x800) != 0)
  37 #define SN_EQUAL(a, b)  (a == b)
  38 #define REORDER_WAIT_TIME       30 /* (ms)*/
  39 
  40 struct recv_stat {
  41         __le32 rxdw0;
  42         __le32 rxdw1;
  43         __le32 rxdw2;
  44         __le32 rxdw3;
  45         __le32 rxdw4;
  46         __le32 rxdw5;
  47 };
  48 
  49 struct phy_cck_rx_status {
  50         /* For CCK rate descriptor. This is a unsigned 8:1 variable.
  51          * LSB bit present 0.5. And MSB 7 bts present a signed value.
  52          * Range from -64~+63.5.
  53          */
  54         u8      adc_pwdb_X[4];
  55         u8      sq_rpt;
  56         u8      cck_agc_rpt;
  57 };
  58 
  59 struct phy_stat {
  60         __le32 phydw0;
  61         __le32 phydw1;
  62         __le32 phydw2;
  63         __le32 phydw3;
  64         __le32 phydw4;
  65         __le32 phydw5;
  66         __le32 phydw6;
  67         __le32 phydw7;
  68 };
  69 #define PHY_STAT_GAIN_TRSW_SHT 0
  70 #define PHY_STAT_PWDB_ALL_SHT 4
  71 #define PHY_STAT_CFOSHO_SHT 5
  72 #define PHY_STAT_CCK_AGC_RPT_SHT 5
  73 #define PHY_STAT_CFOTAIL_SHT 9
  74 #define PHY_STAT_RXEVM_SHT 13
  75 #define PHY_STAT_RXSNR_SHT 15
  76 #define PHY_STAT_PDSNR_SHT 19
  77 #define PHY_STAT_CSI_CURRENT_SHT 21
  78 #define PHY_STAT_CSI_TARGET_SHT 23
  79 #define PHY_STAT_SIGEVM_SHT 25
  80 #define PHY_STAT_MAX_EX_PWR_SHT 26
  81 
  82 union recvstat {
  83         struct recv_stat recv_stat;
  84         unsigned int value[RXDESC_SIZE>>2];
  85 };
  86 
  87 
  88 struct recv_buf {
  89         struct list_head list;
  90         spinlock_t recvbuf_lock;
  91         u32     ref_cnt;
  92         struct _adapter  *adapter;
  93         struct urb *purb;
  94         _pkt *pskb;
  95         u8  irp_pending;
  96         u32  transfer_len;
  97         uint  len;
  98         u8 *phead;
  99         u8 *pdata;
 100         u8 *ptail;
 101         u8 *pend;
 102         u8 *pbuf;
 103         u8 *pallocated_buf;
 104 };
 105 
 106 /*
 107  *      head  ----->
 108  *              data  ----->
 109  *                      payload
 110  *              tail  ----->
 111  *      end   ----->
 112  *      len = (unsigned int )(tail - data);
 113  */
 114 struct recv_frame_hdr {
 115         struct list_head list;
 116         _pkt    *pkt;
 117         _pkt *pkt_newalloc;
 118         struct _adapter  *adapter;
 119         u8 fragcnt;
 120         struct rx_pkt_attrib attrib;
 121         uint  len;
 122         u8 *rx_head;
 123         u8 *rx_data;
 124         u8 *rx_tail;
 125         u8 *rx_end;
 126         void *precvbuf;
 127         struct sta_info *psta;
 128         /*for A-MPDU Rx reordering buffer control*/
 129         struct recv_reorder_ctrl *preorder_ctrl;
 130 };
 131 
 132 union recv_frame {
 133         union {
 134                 struct list_head list;
 135                 struct recv_frame_hdr hdr;
 136         } u;
 137 };
 138 
 139 void r8712_init_recvbuf(struct _adapter *padapter, struct recv_buf *precvbuf);
 140 void r8712_rxcmd_event_hdl(struct _adapter *padapter, void *prxcmdbuf);
 141 s32 r8712_signal_scale_mapping(s32 cur_sig);
 142 void r8712_reordering_ctrl_timeout_handler(void *pcontext);
 143 
 144 #endif
 145