Release 4.7 drivers/staging/rtl8712/rtl8712_recv.h

/******************************************************************************
 *
 * Copyright(c) 2007 - 2010 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
 *
 * Modifications for inclusion into the Linux staging tree are
 * Copyright(c) 2010 Larry Finger. All rights reserved.
 *
 * Contact information:
 * WLAN FAE <wlanfae@realtek.com>
 * Larry Finger <Larry.Finger@lwfinger.net>
 *
 ******************************************************************************/
#ifndef _RTL8712_RECV_H_

#define _RTL8712_RECV_H_

#include "osdep_service.h"
#include "drv_types.h"

/* Realtek's v2.6.6 reduced this to 4. However, under heavy network and CPU
 * loads, even 8 receive buffers might not be enough; cutting it to 4 seemed
 * unwise.
 */

#define NR_RECVBUFF (8)


#define NR_PREALLOC_RECV_SKB (8)

#define RXDESC_SIZE	24

#define RXDESC_OFFSET RXDESC_SIZE

#define RECV_BLK_SZ 512

#define RECV_BLK_CNT 16

#define RECV_BLK_TH RECV_BLK_CNT

#define MAX_RECVBUF_SZ 9100

#define RECVBUFF_ALIGN_SZ 512

#define RSVD_ROOM_SZ (0)
/*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	30 
/* (ms)*/


struct recv_stat {
	
unsigned int rxdw0;
	
unsigned int rxdw1;
	
unsigned int rxdw2;
	
unsigned int rxdw3;
	
unsigned int rxdw4;
	
unsigned int rxdw5;
};


struct phy_cck_rx_status {
	/* For CCK rate descriptor. This is a unsigned 8:1 variable.
         * LSB bit present 0.5. And MSB 7 bts present a signed value.
         * Range from -64~+63.5. */
	
u8	adc_pwdb_X[4];
	
u8	sq_rpt;
	
u8	cck_agc_rpt;
};


struct phy_stat {
	
unsigned int phydw0;
	
unsigned int phydw1;
	
unsigned int phydw2;
	
unsigned int phydw3;
	
unsigned int phydw4;
	
unsigned int phydw5;
	
unsigned int phydw6;
	
unsigned int phydw7;
};

#define PHY_STAT_GAIN_TRSW_SHT 0

#define PHY_STAT_PWDB_ALL_SHT 4

#define PHY_STAT_CFOSHO_SHT 5

#define PHY_STAT_CCK_AGC_RPT_SHT 5

#define PHY_STAT_CFOTAIL_SHT 9

#define PHY_STAT_RXEVM_SHT 13

#define PHY_STAT_RXSNR_SHT 15

#define PHY_STAT_PDSNR_SHT 19

#define PHY_STAT_CSI_CURRENT_SHT 21

#define PHY_STAT_CSI_TARGET_SHT 23

#define PHY_STAT_SIGEVM_SHT 25

#define PHY_STAT_MAX_EX_PWR_SHT 26


union recvstat {
	
struct recv_stat recv_stat;
	
unsigned int value[RXDESC_SIZE>>2];
};



struct recv_buf {
	
struct list_head list;
	
spinlock_t recvbuf_lock;
	
u32	ref_cnt;
	
struct _adapter  *adapter;
	
struct urb *purb;
	
_pkt *pskb;
	
u8 reuse;
	
u8  irp_pending;
	
u32  transfer_len;
	
uint  len;
	
u8 *phead;
	
u8 *pdata;
	
u8 *ptail;
	
u8 *pend;
	
u8 *pbuf;
	
u8 *pallocated_buf;
};

/*
        head  ----->
                data  ----->
                        payload
                tail  ----->
        end   ----->
        len = (unsigned int )(tail - data);
*/

struct recv_frame_hdr {
	
struct list_head list;
	
_pkt	*pkt;
	
_pkt *pkt_newalloc;
	
struct _adapter  *adapter;
	
u8 fragcnt;
	
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;
	} 
u;
};

int r8712_init_recvbuf(struct _adapter *padapter, struct recv_buf *precvbuf);
void r8712_rxcmd_event_hdl(struct _adapter *padapter, void *prxcmdbuf);
s32 r8712_signal_scale_mapping(s32 cur_sig);
void r8712_reordering_ctrl_timeout_handler(void *pcontext);

#endif

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Directory: drivers/staging/rtl8712

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