diff options
Diffstat (limited to 'drivers/staging/rtl8188eu/include/rtw_recv.h')
| -rw-r--r-- | drivers/staging/rtl8188eu/include/rtw_recv.h | 485 |
1 files changed, 485 insertions, 0 deletions
diff --git a/drivers/staging/rtl8188eu/include/rtw_recv.h b/drivers/staging/rtl8188eu/include/rtw_recv.h new file mode 100644 index 000000000000..bae8885c57f9 --- /dev/null +++ b/drivers/staging/rtl8188eu/include/rtw_recv.h @@ -0,0 +1,485 @@ +/****************************************************************************** + * + * 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 |