diff options
Diffstat (limited to 'drivers/staging/rtl8712/rtl871x_recv.h')
| -rw-r--r-- | drivers/staging/rtl8712/rtl871x_recv.h | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/drivers/staging/rtl8712/rtl871x_recv.h b/drivers/staging/rtl8712/rtl871x_recv.h new file mode 100644 index 0000000..bf8115d --- /dev/null +++ b/drivers/staging/rtl8712/rtl871x_recv.h @@ -0,0 +1,330 @@ +#ifndef _RTL871X_RECV_H_ +#define _RTL871X_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 MAX_SUBFRAME_COUNT 64 + +#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) + +/* for Rx reordering buffer control */ +struct recv_reorder_ctrl { + struct _adapter *padapter; + 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]; +}; + +#define PHY_RSSI_SLID_WIN_MAX 100 +#define PHY_LINKQUALITY_SLID_WIN_MAX 20 + + +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 rx_pkt_attrib { + + u8 amsdu; + u8 order; + u8 qos; + u8 to_fr_ds; + u8 frag_num; + u16 seq_num; + u8 pw_save; + u8 mfrag; + u8 mdata; + u8 privacy; /* in frame_ctrl field */ + u8 bdecrypted; + int hdrlen; /* the WLAN Header Len */ + int encrypt; /* 0 no encrypt. != 0 encrypt algorith */ + int iv_len; + int icv_len; + int priority; + int ack_policy; + u8 crc_err; + u8 dst[ETH_ALEN]; + u8 src[ETH_ALEN]; + u8 ta[ETH_ALEN]; + u8 ra[ETH_ALEN]; + u8 bssid[ETH_ALEN]; + u8 tcpchk_valid; /* 0: invalid, 1: valid */ + u8 ip_chkrpt; /* 0: incorrect, 1: correct */ + u8 tcp_chkrpt; /* 0: incorrect, 1: correct */ + u8 signal_qual; + s8 rx_mimo_signal_qual[2]; + u8 mcs_rate; + u8 htc; + u8 signal_strength; +}; + +/* +accesser of recv_priv: 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 semaphore recv_sema; + struct semaphore terminate_recvthread_sema; + struct __queue free_recv_queue; + struct __queue recv_pending_queue; + u8 *pallocated_frame_buf; + u8 *precv_frame_buf; + uint free_recvframe_cnt; + struct _adapter *adapter; + uint rx_bytes; + uint rx_pkts; + uint rx_drop; + uint rx_icv_err; + uint rx_largepacket_crcerr; + uint rx_smallpacket_crcerr; + uint rx_middlepacket_crcerr; + struct semaphore allrxreturnevt; + u8 rx_pending_cnt; + uint ff_hwaddr; + 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 the phy informatiom */ + s8 rssi; + u8 signal; + u8 noise; + u8 fw_rssi; + struct smooth_rssi_data signal_qual_data; + struct smooth_rssi_data signal_strength_data; +}; + +struct sta_recv_priv { + spinlock_t lock; + sint option; + struct __queue defrag_q; /* keeping the fragment frame until defrag */ + struct stainfo_rxcache rxcache; + uint sta_rx_bytes; + uint sta_rx_pkts; + uint sta_rx_fail; +}; + +#include "rtl8712_recv.h" + +/* get a free recv_frame from pfree_recv_queue */ +union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue); +union recv_frame *r8712_dequeue_recvframe(struct __queue *queue); +int r8712_enqueue_recvframe(union recv_frame *precvframe, + struct __queue *queue); +int r8712_free_recvframe(union recv_frame *precvframe, + struct __queue *pfree_recv_queue); +void r8712_free_recvframe_queue(struct __queue *pframequeue, + struct __queue *pfree_recv_queue); +void r8712_init_recvframe(union recv_frame *precvframe, + struct recv_priv *precvpriv); +int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe); +int recv_func(struct _adapter *padapter, 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, sint 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, sint sz) +{ + /* 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, sint 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. */ + unsigned char *prev_rx_tail; + + if (precvframe == NULL) + return NULL; + prev_rx_tail = precvframe->u.hdr.rx_tail; + 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, sint 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 _buffer *get_rxbuf_desc(union recv_frame *precvframe) +{ + _buffer *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 *)(((addr_t)rxmem >> RXFRAME_ALIGN) << + RXFRAME_ALIGN); +} + +static inline union recv_frame *pkt_to_recvframe(_pkt *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(_pkt *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(_pkt *pkt) +{ + /* return the rx_data */ + union recv_frame *precv_frame = pkt_to_recvframe(pkt); + + return precv_frame->u.hdr.rx_data; +} + +static inline sint get_recvframe_len(union recv_frame *precvframe) +{ + return precvframe->u.hdr.len; +} + +struct sta_info; + +void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv); +sint r8712_recvframe_chkmic(struct _adapter *adapter, + union recv_frame *precvframe); +union recv_frame *r8712_decryptor(struct _adapter *adapter, + union recv_frame *precv_frame); +union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter, + union recv_frame *precv_frame); +union recv_frame *r8712_recvframe_defrag(struct _adapter *adapter, + struct __queue *defrag_q); +union recv_frame *r8712_recvframe_chk_defrag_new(struct _adapter *adapter, + union recv_frame *precv_frame); +union recv_frame *r8712_recvframe_defrag_new(struct _adapter *adapter, + struct __queue *defrag_q, + union recv_frame *precv_frame); +int r8712_recv_decache(union recv_frame *precv_frame, u8 bretry, + struct stainfo_rxcache *prxcache); +int r8712_sta2sta_data_frame(struct _adapter *adapter, + union recv_frame *precv_frame, + struct sta_info **psta); +int r8712_ap2sta_data_frame(struct _adapter *adapter, + union recv_frame *precv_frame, + struct sta_info **psta); +int r8712_sta2ap_data_frame(struct _adapter *adapter, + union recv_frame *precv_frame, + struct sta_info **psta); +int r8712_validate_recv_ctrl_frame(struct _adapter *adapter, + union recv_frame *precv_frame); +int r8712_validate_recv_mgnt_frame(struct _adapter *adapter, + union recv_frame *precv_frame); +int r8712_validate_recv_data_frame(struct _adapter *adapter, + union recv_frame *precv_frame); +int r8712_validate_recv_frame(struct _adapter *adapter, + union recv_frame *precv_frame); +union recv_frame *r8712_portctrl(struct _adapter *adapter, + union recv_frame *precv_frame); +void r8712_mgt_dispatcher(struct _adapter *padapter, u8 *pframe, uint len); +int r8712_amsdu_to_msdu(struct _adapter *padapter, union recv_frame *prframe); + +#endif + |
