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 70 #define PHY_STAT_GAIN_TRSW_SHT 0 71 #define PHY_STAT_PWDB_ALL_SHT 4 72 #define PHY_STAT_CFOSHO_SHT 5 73 #define PHY_STAT_CCK_AGC_RPT_SHT 5 74 #define PHY_STAT_CFOTAIL_SHT 9 75 #define PHY_STAT_RXEVM_SHT 13 76 #define PHY_STAT_RXSNR_SHT 15 77 #define PHY_STAT_PDSNR_SHT 19 78 #define PHY_STAT_CSI_CURRENT_SHT 21 79 #define PHY_STAT_CSI_TARGET_SHT 23 80 #define PHY_STAT_SIGEVM_SHT 25 81 #define PHY_STAT_MAX_EX_PWR_SHT 26 82 83 union recvstat { 84 struct recv_stat recv_stat; 85 unsigned int value[RXDESC_SIZE>>2]; 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 145 146