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/******************************************************************************
*
* 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 (30720) /* 30K */
#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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