/drivers/net/wireless/bcmdhd/include/bcmdefs.h

/*
 * Misc system wide definitions
 *
 * Copyright (C) 1999-2013, 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: bcmdefs.h 416231 2013-08-02 07:38:34Z $
 */

#ifndef	_bcmdefs_h_
#define	_bcmdefs_h_

/*
 * One doesn't need to include this file explicitly, gets included automatically if
 * typedefs.h is included.
 */

/* Use BCM_REFERENCE to suppress warnings about intentionally-unused function
 * arguments or local variables.
 */
#define BCM_REFERENCE(data)	((void)(data))

/* Compile-time assert can be used in place of ASSERT if the expression evaluates
 * to a constant at compile time.
 */
#define STATIC_ASSERT(expr) { \
	/* Make sure the expression is constant. */ \
	typedef enum { _STATIC_ASSERT_NOT_CONSTANT = (expr) } _static_assert_e; \
	/* Make sure the expression is true. */ \
	typedef char STATIC_ASSERT_FAIL[(expr) ? 1 : -1]; \
}

/* Reclaiming text and data :
 * The following macros specify special linker sections that can be reclaimed
 * after a system is considered 'up'.
 * BCMATTACHFN is also used for detach functions (it's not worth having a BCMDETACHFN,
 * as in most cases, the attach function calls the detach function to clean up on error).
 */

#define bcmreclaimed 		0
#define _data	_data
#define _fn	_fn
#define BCMPREATTACHDATA(_data)	_data
#define BCMPREATTACHFN(_fn)	_fn
#define _data	_data
#define _fn		_fn
#define _fn	_fn
#define	BCMNMIATTACHFN(_fn)	_fn
#define	BCMNMIATTACHDATA(_data)	_data
#define CONST	const

/* Do not put BCM47XX and __ARM_ARCH_7A__ to the same line.
 * DHD build has problem because the BCM47XX will be excluded in DHD release.
 */
#undef BCM47XX_CA9
#ifdef __ARM_ARCH_7A__
#define BCM47XX_CA9
#endif /* __ARM_ARCH_7A__ */
#ifndef BCMFASTPATH
#if defined(BCM47XX_CA9)
#define BCMFASTPATH		__attribute__ ((__section__ (".text.fastpath")))
#define BCMFASTPATH_HOST	__attribute__ ((__section__ (".text.fastpath_host")))
#else
#define BCMFASTPATH
#define BCMFASTPATH_HOST
#endif
#endif /* BCMFASTPATH */


/* Put some library data/code into ROM to reduce RAM requirements */
#define _data	_data
#define BCMROMDAT_NAME(_data)	_data
#define _fn		_fn
#define _fn	_fn
#define STATIC	static
#define BCMROMDAT_ARYSIZ(data)	ARRAYSIZE(data)
#define BCMROMDAT_SIZEOF(data)	sizeof(data)
#define BCMROMDAT_APATCH(data)
#define BCMROMDAT_SPATCH(data)

/* Bus types */
#define	SI_BUS			0	/* SOC Interconnect */
#define	PCI_BUS			1	/* PCI target */
#define	PCMCIA_BUS		2	/* PCMCIA target */
#define SDIO_BUS		3	/* SDIO target */
#define JTAG_BUS		4	/* JTAG */
#define USB_BUS			5	/* USB (does not support R/W REG) */
#define SPI_BUS			6	/* gSPI target */
#define RPC_BUS			7	/* RPC target */

/* Allows size optimization for single-bus image */
#ifdef BCMBUSTYPE
#define BUSTYPE(bus) 	(BCMBUSTYPE)
#else
#define BUSTYPE(bus) 	(bus)
#endif

/* Allows size optimization for single-backplane image */
#ifdef BCMCHIPTYPE
#define CHIPTYPE(bus) 	(BCMCHIPTYPE)
#else
#define CHIPTYPE(bus) 	(bus)
#endif


/* Allows size optimization for SPROM support */
#if defined(BCMSPROMBUS)
#define SPROMBUS	(BCMSPROMBUS)
#elif defined(SI_PCMCIA_SROM)
#define SPROMBUS	(PCMCIA_BUS)
#else
#define SPROMBUS	(PCI_BUS)
#endif

/* Allows size optimization for single-chip image */
#ifdef BCMCHIPID
#define CHIPID(chip)	(BCMCHIPID)
#else
#define CHIPID(chip)	(chip)
#endif

#ifdef BCMCHIPREV
#define CHIPREV(rev)	(BCMCHIPREV)
#else
#define CHIPREV(rev)	(rev)
#endif

/* Defines for DMA Address Width - Shared between OSL and HNDDMA */
#define DMADDR_MASK_32 0x0		/* Address mask for 32-bits */
#define DMADDR_MASK_30 0xc0000000	/* Address mask for 30-bits */
#define DMADDR_MASK_0  0xffffffff	/* Address mask for 0-bits (hi-part) */

#define	DMADDRWIDTH_30  30 /* 30-bit addressing capability */
#define	DMADDRWIDTH_32  32 /* 32-bit addressing capability */
#define	DMADDRWIDTH_63  63 /* 64-bit addressing capability */
#define	DMADDRWIDTH_64  64 /* 64-bit addressing capability */

#ifdef BCMDMA64OSL
typedef struct {
	uint32 loaddr;
	uint32 hiaddr;
} dma64addr_t;

typedef dma64addr_t dmaaddr_t;
#define PHYSADDRHI(_pa) ((_pa).hiaddr)
#define PHYSADDRHISET(_pa, _val) \
	do { \
		(_pa).hiaddr = (_val);		\
	} while (0)
#define PHYSADDRLO(_pa) ((_pa).loaddr)
#define PHYSADDRLOSET(_pa, _val) \
	do { \
		(_pa).loaddr = (_val);		\
	} while (0)

#else
typedef unsigned long dmaaddr_t;
#define PHYSADDRHI(_pa) (0)
#define PHYSADDRHISET(_pa, _val)
#define PHYSADDRLO(_pa) ((_pa))
#define PHYSADDRLOSET(_pa, _val) \
	do { \
		(_pa) = (_val);			\
	} while (0)
#endif /* BCMDMA64OSL */

/* One physical DMA segment */
typedef struct  {
	dmaaddr_t addr;
	uint32	  length;
} hnddma_seg_t;

#define MAX_DMA_SEGS 4


typedef struct {
	void *oshdmah; /* Opaque handle for OSL to store its information */
	uint origsize; /* Size of the virtual packet */
	uint nsegs;
	hnddma_seg_t segs[MAX_DMA_SEGS];
} hnddma_seg_map_t;


/* packet headroom necessary to accommodate the largest header in the system, (i.e TXOFF).
 * By doing, we avoid the need  to allocate an extra buffer for the header when bridging to WL.
 * There is a compile time check in wlc.c which ensure that this value is at least as big
 * as TXOFF. This value is used in dma_rxfill (hnddma.c).
 */

#if defined(BCM_RPC_NOCOPY) || defined(BCM_RCP_TXNOCOPY)
/* add 40 bytes to allow for extra RPC header and info  */
#define BCMEXTRAHDROOM 260
#else /* BCM_RPC_NOCOPY || BCM_RPC_TXNOCOPY */
#if defined(BCM47XX_CA9)
#define BCMEXTRAHDROOM 224
#else
#define BCMEXTRAHDROOM 204
#endif /* linux && BCM47XX_CA9 */
#endif /* BCM_RPC_NOCOPY || BCM_RPC_TXNOCOPY */

/* Packet alignment for most efficient SDIO (can change based on platform) */
#ifndef SDALIGN
#define SDALIGN	32
#endif

/* Headroom required for dongle-to-host communication.  Packets allocated
 * locally in the dongle (e.g. for CDC ioctls or RNDIS messages) should
 * leave this much room in front for low-level message headers which may
 * be needed to get across the dongle bus to the host.  (These messages
 * don't go over the network, so room for the full WL header above would
 * be a waste.).
*/
#define BCMDONGLEHDRSZ 12
#define BCMDONGLEPADSZ 16

#define BCMDONGLEOVERHEAD	(BCMDONGLEHDRSZ + BCMDONGLEPADSZ)


#if defined(NO_BCMDBG_ASSERT)
# undef BCMDBG_ASSERT
# undef BCMASSERT_LOG
#endif

#if defined(BCMASSERT_LOG)
#define BCMASSERT_SUPPORT
#endif 

/* Macros for doing definition and get/set of bitfields
 * Usage example, e.g. a three-bit field (bits 4-6):
 *    #define <NAME>_M	BITFIELD_MASK(3)
 *    #define <NAME>_S	4
 * ...
 *    regval = R_REG(osh, &regs->regfoo);
 *    field = GFIELD(regval, <NAME>);
 *    regval = SFIELD(regval, <NAME>, 1);
 *    W_REG(osh, &regs->regfoo, regval);
 */
#define BITFIELD_MASK(width) \
		(((unsigned)1 << (width)) - 1)
#define GFIELD(val, field) \
		(((val) >> field ## _S) & field ## _M)
#define SFIELD(val, field, bits) \
		(((val) & (~(field ## _M << field ## _S))) | \
		 ((unsigned)(bits) << field ## _S))

/* define BCMSMALL to remove misc features for memory-constrained environments */
#ifdef BCMSMALL
#undef	BCMSPACE
#define bcmspace	FALSE	/* if (bcmspace) code is discarded */
#else
#define	BCMSPACE
#define bcmspace	TRUE	/* if (bcmspace) code is retained */
#endif

/* Max. nvram variable table size */
#define	MAXSZ_NVRAM_VARS	4096


/* Max size for reclaimable NVRAM array */
#ifdef DL_NVRAM
#define NVRAM_ARRAY_MAXSIZE	DL_NVRAM
#else
#define NVRAM_ARRAY_MAXSIZE	MAXSZ_NVRAM_VARS
#endif /* DL_NVRAM */

#ifdef BCMUSBDEV_ENABLED
extern uint32 gFWID;
#endif

#endif /* _bcmdefs_h_ */