1. 根目录:
2. drivers
3. net
4. wireless
5. bcmdhd
6. include
7. bcmcdc.h

/*
 * CDC network driver ioctl/indication encoding
 * Broadcom 802.11abg Networking Device Driver
 *
 * Definitions subject to change without notice.
 *
 * Copyright (C) 1999-2012, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: bcmcdc.h 309825 2012-01-20 20:16:13Z $
 */
#ifndef _bcmcdc_h_
#define	_bcmcdc_h_
#include <proto/ethernet.h>

typedef struct cdc_ioctl {
	uint32 cmd;      
	uint32 len;      
	uint32 flags;    
	uint32 status;   
} cdc_ioctl_t;


#define CDC_MAX_MSG_SIZE   ETHER_MAX_LEN


#define CDCL_IOC_OUTLEN_MASK   0x0000FFFF  
					   
#define CDCL_IOC_OUTLEN_SHIFT  0
#define CDCL_IOC_INLEN_MASK    0xFFFF0000   
#define CDCL_IOC_INLEN_SHIFT   16


#define CDCF_IOC_ERROR		0x01	
#define CDCF_IOC_SET		0x02	
#define CDCF_IOC_OVL_IDX_MASK	0x3c	
#define CDCF_IOC_OVL_RSV	0x40	
#define CDCF_IOC_OVL		0x80	
#define CDCF_IOC_ACTION_MASK	0xfe	
#define CDCF_IOC_ACTION_SHIFT	1	
#define CDCF_IOC_IF_MASK	0xF000	
#define CDCF_IOC_IF_SHIFT	12
#define CDCF_IOC_ID_MASK	0xFFFF0000	
#define CDCF_IOC_ID_SHIFT	16		

#define CDC_IOC_IF_IDX(flags)	(((flags) & CDCF_IOC_IF_MASK) >> CDCF_IOC_IF_SHIFT)
#define CDC_IOC_ID(flags)	(((flags) & CDCF_IOC_ID_MASK) >> CDCF_IOC_ID_SHIFT)

#define CDC_GET_IF_IDX(hdr) \
	((int)((((hdr)->flags) & CDCF_IOC_IF_MASK) >> CDCF_IOC_IF_SHIFT))
#define CDC_SET_IF_IDX(hdr, idx) \
	((hdr)->flags = (((hdr)->flags & ~CDCF_IOC_IF_MASK) | ((idx) << CDCF_IOC_IF_SHIFT)))



struct bdc_header {
	uint8	flags;			
	uint8	priority;		
	uint8	flags2;
	uint8	dataOffset;		
};

#define	BDC_HEADER_LEN		4


#define BDC_FLAG_80211_PKT	0x01	
#define BDC_FLAG_SUM_GOOD	0x04	
#define BDC_FLAG_SUM_NEEDED	0x08	
#define BDC_FLAG_VER_MASK	0xf0	
#define BDC_FLAG_VER_SHIFT	4	


#define BDC_PRIORITY_MASK	0x07
#define BDC_PRIORITY_FC_MASK	0xf0	
#define BDC_PRIORITY_FC_SHIFT	4	


#define BDC_FLAG2_IF_MASK	0x0f	
#define BDC_FLAG2_IF_SHIFT	0
#define BDC_FLAG2_FC_FLAG	0x10	
					


#define BDC_PROTO_VER_1		1	
#define BDC_PROTO_VER		2	


#define BDC_GET_IF_IDX(hdr) \
	((int)((((hdr)->flags2) & BDC_FLAG2_IF_MASK) >> BDC_FLAG2_IF_SHIFT))
#define BDC_SET_IF_IDX(hdr, idx) \
	((hdr)->flags2 = (((hdr)->flags2 & ~BDC_FLAG2_IF_MASK) | ((idx) << BDC_FLAG2_IF_SHIFT)))

#define BDC_FLAG2_PAD_MASK		0xf0
#define BDC_FLAG_PAD_MASK		0x03
#define BDC_FLAG2_PAD_SHIFT		2
#define BDC_FLAG_PAD_SHIFT		0
#define BDC_FLAG2_PAD_IDX		0x3c
#define BDC_FLAG_PAD_IDX		0x03
#define BDC_GET_PAD_LEN(hdr) \
	((int)(((((hdr)->flags2) & BDC_FLAG2_PAD_MASK) >> BDC_FLAG2_PAD_SHIFT) | \
	((((hdr)->flags) & BDC_FLAG_PAD_MASK) >> BDC_FLAG_PAD_SHIFT)))
#define BDC_SET_PAD_LEN(hdr, idx) \
	((hdr)->flags2 = (((hdr)->flags2 & ~BDC_FLAG2_PAD_MASK) | \
	(((idx) & BDC_FLAG2_PAD_IDX) << BDC_FLAG2_PAD_SHIFT))); \
	((hdr)->flags = (((hdr)->flags & ~BDC_FLAG_PAD_MASK) | \
	(((idx) & BDC_FLAG_PAD_IDX) << BDC_FLAG_PAD_SHIFT)))

#endif