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/*
* Misc system wide definitions
*
* Copyright 2007, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
* $Id: bcmdefs.h,v 1.1.1.1 2008/07/21 09:14:16 james26_jang Exp $
*/
#ifndef _bcmdefs_h_
#define _bcmdefs_h_
/*
* One doesn't need to include this file explicitly, gets included automatically if
* typedefs.h is included.
*/
/* Reclaiming text and data :
* The following macros specify special linker sections that can be reclaimed
* after a system is considered 'up'.
*/
#if defined(BCMRECLAIM)
extern bool bcmreclaimed;
#define BCMINITDATA(_data) __attribute__ ((__section__ (".dataini." #_data))) _data
#define BCMINITFN(_fn) __attribute__ ((noinline, __section__ (".textini." #_fn))) _fn
#else
#define BCMINITDATA(_data) _data
#define BCMINITFN(_fn) _fn
#define bcmreclaimed 0
#endif
/* Reclaim uninit functions if BCMNODOWN is defined */
/* and if they are not already removed by -gc-sections */
#define BCMUNINITFN(_fn) _fn
#ifdef BCMRECLAIM
#define CONST
#else
#define CONST const
#endif /* BCMRECLAIM */
/* Put some library data/code into ROM to reduce RAM requirements */
#define BCMROMDATA(_data) _data
#define BCMROMFN(_fn) _fn
/* Bus types */
#define SB_BUS 0 /* Silicon Backplane */
#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) */
/* Allows optimization for single-bus support */
#ifdef BCMBUSTYPE
#define BUSTYPE(bus) (BCMBUSTYPE)
#else
#define BUSTYPE(bus) (bus)
#endif
/* Tell where the SPROM is hanging off */
#if defined(BCMSPROMBUS)
#define SPROMBUS (BCMSPROMBUS)
#elif defined(SB_PCMCIA_SROM)
#define SPROMBUS (PCMCIA_BUS)
#else
#define SPROMBUS (PCI_BUS)
#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 */
/* packet headroom necessary to accomodate 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).
*/
#define BCMEXTRAHDROOM 164
/* 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.).
*/
#ifdef BCMUSBDEV
#define BCMDONGLEHDRSZ 0
#else
#define BCMDONGLEHDRSZ 8
#endif
/* Brett's nifty 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, ®s->regfoo);
* field = GFIELD(regval, <NAME>);
* regval = SFIELD(regval, <NAME>, 1);
* W_REG(osh, ®s->regfoo, regval);
*/
#define BITFIELD_MASK(width) ((1 << width)-1)
#define GFIELD(val, field) ((val >> field ## _S) & field ## _M)
#define SFIELD(val, field, bits) ((val & (~(field ## _M << field ## _S))) | (bits << field ## _S))
/* define BCMSMALL to remove misc features for memory constrained enviroments */
#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
#endif /* _bcmdefs_h_ */
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