| /****************************************************************************** |
| * |
| * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| * |
| * |
| ******************************************************************************/ |
| #ifndef _RTW_RECV_H_ |
| #define _RTW_RECV_H_ |
| |
| #include <osdep_service.h> |
| #include <drv_types.h> |
| |
| |
| #define NR_RECVFRAME 256 |
| |
| #define RXFRAME_ALIGN 8 |
| #define RXFRAME_ALIGN_SZ (1<<RXFRAME_ALIGN) |
| |
| #define MAX_RXFRAME_CNT 512 |
| #define MAX_RX_NUMBLKS (32) |
| #define RECVFRAME_HDR_ALIGN 128 |
| |
| #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) |
| |
| #define MAX_SUBFRAME_COUNT 64 |
| |
| /* for Rx reordering buffer control */ |
| struct recv_reorder_ctrl { |
| struct adapter *padapter; |
| u8 enable; |
| u16 indicate_seq;/* wstart_b, init_value=0xffff */ |
| u16 wend_b; |
| u8 wsize_b; |
| struct __queue pending_recvframe_queue; |
| struct timer_list reordering_ctrl_timer; |
| }; |
| |
| struct stainfo_rxcache { |
| u16 tid_rxseq[16]; |
| /* |
| unsigned short tid0_rxseq; |
| unsigned short tid1_rxseq; |
| unsigned short tid2_rxseq; |
| unsigned short tid3_rxseq; |
| unsigned short tid4_rxseq; |
| unsigned short tid5_rxseq; |
| unsigned short tid6_rxseq; |
| unsigned short tid7_rxseq; |
| unsigned short tid8_rxseq; |
| unsigned short tid9_rxseq; |
| unsigned short tid10_rxseq; |
| unsigned short tid11_rxseq; |
| unsigned short tid12_rxseq; |
| unsigned short tid13_rxseq; |
| unsigned short tid14_rxseq; |
| unsigned short tid15_rxseq; |
| */ |
| }; |
| |
| struct smooth_rssi_data { |
| u32 elements[100]; /* array to store values */ |
| u32 index; /* index to current array to store */ |
| u32 total_num; /* num of valid elements */ |
| u32 total_val; /* sum of valid elements */ |
| }; |
| |
| struct signal_stat { |
| u8 update_req; /* used to indicate */ |
| u8 avg_val; /* avg of valid elements */ |
| u32 total_num; /* num of valid elements */ |
| u32 total_val; /* sum of valid elements */ |
| }; |
| #define MAX_PATH_NUM_92CS 2 |
| struct phy_info { |
| u8 RxPWDBAll; |
| u8 SignalQuality; /* in 0-100 index. */ |
| u8 RxMIMOSignalQuality[MAX_PATH_NUM_92CS]; /* EVM */ |
| u8 RxMIMOSignalStrength[MAX_PATH_NUM_92CS];/* in 0~100 index */ |
| s8 RxPower; /* in dBm Translate from PWdB */ |
| /* Real power in dBm for this packet, no beautification and aggregation. |
| * Keep this raw info to be used for the other procedures. */ |
| s8 recvpower; |
| u8 BTRxRSSIPercentage; |
| u8 SignalStrength; /* in 0-100 index. */ |
| u8 RxPwr[MAX_PATH_NUM_92CS];/* per-path's pwdb */ |
| u8 RxSNR[MAX_PATH_NUM_92CS];/* per-path's SNR */ |
| }; |
| |
| struct rx_pkt_attrib { |
| u16 pkt_len; |
| u8 physt; |
| u8 drvinfo_sz; |
| u8 shift_sz; |
| u8 hdrlen; /* the WLAN Header Len */ |
| u8 to_fr_ds; |
| u8 amsdu; |
| u8 qos; |
| u8 priority; |
| u8 pw_save; |
| u8 mdata; |
| u16 seq_num; |
| u8 frag_num; |
| u8 mfrag; |
| u8 order; |
| u8 privacy; /* in frame_ctrl field */ |
| u8 bdecrypted; |
| u8 encrypt; /* when 0 indicate no encrypt. when non-zero, |
| * indicate the encrypt algorith */ |
| u8 iv_len; |
| u8 icv_len; |
| u8 crc_err; |
| u8 icv_err; |
| |
| u16 eth_type; |
| |
| u8 dst[ETH_ALEN]; |
| u8 src[ETH_ALEN]; |
| u8 ta[ETH_ALEN]; |
| u8 ra[ETH_ALEN]; |
| u8 bssid[ETH_ALEN]; |
| |
| u8 ack_policy; |
| |
| u8 key_index; |
| |
| u8 mcs_rate; |
| u8 rxht; |
| u8 sgi; |
| u8 pkt_rpt_type; |
| u32 MacIDValidEntry[2]; /* 64 bits present 64 entry. */ |
| |
| struct phy_info phy_info; |
| }; |
| |
| |
| /* These definition is used for Rx packet reordering. */ |
| #define SN_LESS(a, b) (((a - b) & 0x800) != 0) |
| #define SN_EQUAL(a, b) (a == b) |
| #define REORDER_WAIT_TIME (50) /* (ms) */ |
| |
| #define RECVBUFF_ALIGN_SZ 8 |
| |
| #define RXDESC_SIZE 24 |
| #define RXDESC_OFFSET RXDESC_SIZE |
| |
| struct recv_stat { |
| __le32 rxdw0; |
| __le32 rxdw1; |
| __le32 rxdw2; |
| __le32 rxdw3; |
| __le32 rxdw4; |
| __le32 rxdw5; |
| }; |
| |
| #define EOR BIT(30) |
| |
| /* |
| accesser of recv_priv: rtw_recv_entry(dispatch / passive level); |
| recv_thread(passive) ; returnpkt(dispatch) |
| ; halt(passive) ; |
| |
| using enter_critical section to protect |
| */ |
| struct recv_priv { |
| spinlock_t lock; |
| struct __queue free_recv_queue; |
| struct __queue recv_pending_queue; |
| struct __queue uc_swdec_pending_queue; |
| u8 *pallocated_frame_buf; |
| u8 *precv_frame_buf; |
| uint free_recvframe_cnt; |
| struct adapter *adapter; |
| u32 bIsAnyNonBEPkts; |
| u64 rx_bytes; |
| u64 rx_pkts; |
| u64 rx_drop; |
| u64 last_rx_bytes; |
| |
| uint rx_icv_err; |
| uint rx_largepacket_crcerr; |
| uint rx_smallpacket_crcerr; |
| uint rx_middlepacket_crcerr; |
| struct semaphore allrxreturnevt; |
| uint ff_hwaddr; |
| u8 rx_pending_cnt; |
| |
| struct tasklet_struct irq_prepare_beacon_tasklet; |
| struct tasklet_struct recv_tasklet; |
| struct sk_buff_head free_recv_skb_queue; |
| struct sk_buff_head rx_skb_queue; |
| u8 *pallocated_recv_buf; |
| u8 *precv_buf; /* 4 alignment */ |
| struct __queue free_recv_buf_queue; |
| u32 free_recv_buf_queue_cnt; |
| /* For display the phy informatiom */ |
| u8 is_signal_dbg; /* for debug */ |
| u8 signal_strength_dbg; /* for debug */ |
| s8 rssi; |
| s8 rxpwdb; |
| u8 signal_strength; |
| u8 signal_qual; |
| u8 noise; |
| int RxSNRdB[2]; |
| s8 RxRssi[2]; |
| int FalseAlmCnt_all; |
| |
| struct timer_list signal_stat_timer; |
| u32 signal_stat_sampling_interval; |
| struct signal_stat signal_qual_data; |
| struct signal_stat signal_strength_data; |
| }; |
| |
| #define rtw_set_signal_stat_timer(recvpriv) \ |
| _set_timer(&(recvpriv)->signal_stat_timer, \ |
| (recvpriv)->signal_stat_sampling_interval) |
| |
| struct sta_recv_priv { |
| spinlock_t lock; |
| int option; |
| struct __queue defrag_q; /* keeping the fragment frame until defrag */ |
| struct stainfo_rxcache rxcache; |
| }; |
| |
| struct recv_buf { |
| struct list_head list; |
| spinlock_t recvbuf_lock; |
| u32 ref_cnt; |
| struct adapter *adapter; |
| u8 *pbuf; |
| u8 *pallocated_buf; |
| u32 len; |
| u8 *phead; |
| u8 *pdata; |
| u8 *ptail; |
| u8 *pend; |
| struct urb *purb; |
| dma_addr_t dma_transfer_addr; /* (in) dma addr for transfer_buffer */ |
| u32 alloc_sz; |
| u8 irp_pending; |
| int transfer_len; |
| struct sk_buff *pskb; |
| u8 reuse; |
| }; |
| |
| /* |
| head -----> |
| |
| data -----> |
| |
| payload |
| |
| tail -----> |
| |
| |
| end -----> |
| |
| len = (unsigned int )(tail - data); |
| |
| */ |
| struct recv_frame_hdr { |
| struct list_head list; |
| struct sk_buff *pkt; |
| struct sk_buff *pkt_newalloc; |
| struct adapter *adapter; |
| u8 fragcnt; |
| int frame_tag; |
| struct rx_pkt_attrib attrib; |
| uint len; |
| u8 *rx_head; |
| u8 *rx_data; |
| u8 *rx_tail; |
| u8 *rx_end; |
| void *precvbuf; |
| struct sta_info *psta; |
| /* for A-MPDU Rx reordering buffer control */ |
| struct recv_reorder_ctrl *preorder_ctrl; |
| }; |
| |
| union recv_frame { |
| union { |
| struct list_head list; |
| struct recv_frame_hdr hdr; |
| uint mem[RECVFRAME_HDR_ALIGN>>2]; |
| } u; |
| }; |
| |
| union recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue); |
| union recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue); |
| void rtw_init_recvframe(union recv_frame *precvframe, |
| struct recv_priv *precvpriv); |
| int rtw_free_recvframe(union recv_frame *precvframe, |
| struct __queue *pfree_recv_queue); |
| #define rtw_dequeue_recvframe(queue) rtw_alloc_recvframe(queue) |
| int _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue); |
| int rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue); |
| void rtw_free_recvframe_queue(struct __queue *pframequeue, |
| struct __queue *pfree_recv_queue); |
| u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter); |
| int rtw_enqueue_recvbuf_to_head(struct recv_buf *buf, struct __queue *queue); |
| int rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue); |
| struct recv_buf *rtw_dequeue_recvbuf(struct __queue *queue); |
| |
| void rtw_reordering_ctrl_timeout_handler(void *pcontext); |
| |
| static inline u8 *get_rxmem(union recv_frame *precvframe) |
| { |
| /* always return rx_head... */ |
| if (precvframe == NULL) |
| return NULL; |
| return precvframe->u.hdr.rx_head; |
| } |
| |
| static inline u8 *get_rx_status(union recv_frame *precvframe) |
| { |
| return get_rxmem(precvframe); |
| } |
| |
| static inline u8 *get_recvframe_data(union recv_frame *precvframe) |
| { |
| /* always return rx_data */ |
| if (precvframe == NULL) |
| return NULL; |
| |
| return precvframe->u.hdr.rx_data; |
| } |
| |
| static inline u8 *recvframe_push(union recv_frame *precvframe, int sz) |
| { |
| /* append data before rx_data */ |
| |
| /* add data to the start of recv_frame |
| * |
| * This function extends the used data area of the recv_frame at the buffer |
| * start. rx_data must be still larger than rx_head, after pushing. |
| */ |
| if (precvframe == NULL) |
| return NULL; |
| precvframe->u.hdr.rx_data -= sz ; |
| if (precvframe->u.hdr.rx_data < precvframe->u.hdr.rx_head) { |
| precvframe->u.hdr.rx_data += sz; |
| return NULL; |
| } |
| precvframe->u.hdr.len += sz; |
| return precvframe->u.hdr.rx_data; |
| } |
| |
| static inline u8 *recvframe_pull(union recv_frame *precvframe, int sz) |
| { |
| /* rx_data += sz; move rx_data sz bytes hereafter */ |
| |
| /* used for extract sz bytes from rx_data, update rx_data and return |
| * the updated rx_data to the caller */ |
| |
| if (precvframe == NULL) |
| return NULL; |
| precvframe->u.hdr.rx_data += sz; |
| if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) { |
| precvframe->u.hdr.rx_data -= sz; |
| return NULL; |
| } |
| precvframe->u.hdr.len -= sz; |
| return precvframe->u.hdr.rx_data; |
| } |
| |
| static inline u8 *recvframe_put(union recv_frame *precvframe, int sz) |
| { |
| /* used for append sz bytes from ptr to rx_tail, update rx_tail |
| * and return the updated rx_tail to the caller */ |
| /* after putting, rx_tail must be still larger than rx_end. */ |
| |
| if (precvframe == NULL) |
| return NULL; |
| |
| precvframe->u.hdr.rx_tail += sz; |
| |
| if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) { |
| precvframe->u.hdr.rx_tail -= sz; |
| return NULL; |
| } |
| precvframe->u.hdr.len += sz; |
| return precvframe->u.hdr.rx_tail; |
| } |
| |
| static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, int sz) |
| { |
| /* rmv data from rx_tail (by yitsen) */ |
| |
| /* used for extract sz bytes from rx_end, update rx_end and return |
| * the updated rx_end to the caller */ |
| /* after pulling, rx_end must be still larger than rx_data. */ |
| |
| if (precvframe == NULL) |
| return NULL; |
| precvframe->u.hdr.rx_tail -= sz; |
| if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) { |
| precvframe->u.hdr.rx_tail += sz; |
| return NULL; |
| } |
| precvframe->u.hdr.len -= sz; |
| return precvframe->u.hdr.rx_tail; |
| } |
| |
| static inline unsigned char *get_rxbuf_desc(union recv_frame *precvframe) |
| { |
| unsigned char *buf_desc; |
| |
| if (precvframe == NULL) |
| return NULL; |
| return buf_desc; |
| } |
| |
| static inline union recv_frame *rxmem_to_recvframe(u8 *rxmem) |
| { |
| /* due to the design of 2048 bytes alignment of recv_frame, |
| * we can reference the union recv_frame */ |
| /* from any given member of recv_frame. */ |
| /* rxmem indicates the any member/address in recv_frame */ |
| |
| return (union recv_frame *)(((size_t)rxmem >> RXFRAME_ALIGN) << RXFRAME_ALIGN); |
| } |
| |
| static inline union recv_frame *pkt_to_recvframe(struct sk_buff *pkt) |
| { |
| u8 *buf_star; |
| union recv_frame *precv_frame; |
| precv_frame = rxmem_to_recvframe((unsigned char *)buf_star); |
| |
| return precv_frame; |
| } |
| |
| static inline u8 *pkt_to_recvmem(struct sk_buff *pkt) |
| { |
| /* return the rx_head */ |
| |
| union recv_frame *precv_frame = pkt_to_recvframe(pkt); |
| |
| return precv_frame->u.hdr.rx_head; |
| } |
| |
| static inline u8 *pkt_to_recvdata(struct sk_buff *pkt) |
| { |
| /* return the rx_data */ |
| |
| union recv_frame *precv_frame = pkt_to_recvframe(pkt); |
| |
| return precv_frame->u.hdr.rx_data; |
| } |
| |
| static inline int get_recvframe_len(union recv_frame *precvframe) |
| { |
| return precvframe->u.hdr.len; |
| } |
| |
| static inline s32 translate_percentage_to_dbm(u32 sig_stren_index) |
| { |
| s32 power; /* in dBm. */ |
| |
| /* Translate to dBm (x=0.5y-95). */ |
| power = (s32)((sig_stren_index + 1) >> 1); |
| power -= 95; |
| |
| return power; |
| } |
| |
| |
| struct sta_info; |
| |
| void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv); |
| |
| void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame); |
| |
| #endif |