LXR linux/drivers/staging/rtl8712/rtl8712

   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
  40struct recv_stat {
  41        __le32 rxdw0;
  42        __le32 rxdw1;
  43        __le32 rxdw2;
  44        __le32 rxdw3;
  45        __le32 rxdw4;
  46        __le32 rxdw5;
  47};
  48
  49struct 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
  59struct 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
  82union recvstat {
  83        struct recv_stat recv_stat;
  84        unsigned int value[RXDESC_SIZE>>2];
  85};
  86
  87
  88struct 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 */
 114struct 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
 132union recv_frame {
 133        union {
 134                struct list_head list;
 135                struct recv_frame_hdr hdr;
 136        } u;
 137};
 138
 139void r8712_init_recvbuf(struct _adapter *padapter, struct recv_buf *precvbuf);
 140void r8712_rxcmd_event_hdl(struct _adapter *padapter, void *prxcmdbuf);
 141s32 r8712_signal_scale_mapping(s32 cur_sig);
 142void r8712_reordering_ctrl_timeout_handler(void *pcontext);
 143
 144#endif
 145
 146