package/broadcom-wl/src/include/bcmdefs.h

   1 /*
   2  * Misc system wide definitions
   3  *
   4  * Copyright 2006, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   7  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   8  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   9  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  10  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  11  */
  12
  13 #ifndef _bcmdefs_h_
  14 #define _bcmdefs_h_
  15
  16 /*
  17  * One doesn't need to include this file explicitly, gets included automatically if
  18  * typedefs.h is included.
  19  */
  20
  21 /* Reclaiming text and data :
  22  * The following macros specify special linker sections that can be reclaimed
  23  * after a system is considered 'up'.
  24  */
  25 #if defined(__GNUC__) && defined(BCMRECLAIM)
  26 extern bool     bcmreclaimed;
  27 #define BCMINITDATA(_data)      __attribute__ ((__section__ (".dataini." #_data))) _data
  28 #define BCMINITFN(_fn)          __attribute__ ((__section__ (".textini." #_fn))) _fn
  29 #else /* #if defined(__GNUC__) && defined(BCMRECLAIM) */
  30 #define BCMINITDATA(_data)      _data
  31 #define BCMINITFN(_fn)          _fn
  32 #define bcmreclaimed            0
  33 #endif /* #if defined(__GNUC__) && defined(BCMRECLAIM) */
  34
  35 /* Reclaim uninit functions if BCMNODOWN is defined             */
  36 /* and if they are not already removed by -gc-sections  */
  37 #ifdef BCMNODOWN
  38 #define BCMUNINITFN(_fn)                BCMINITFN(_fn)
  39 #else
  40 #define BCMUNINITFN(_fn)                _fn
  41 #endif
  42
  43 #ifdef BCMRECLAIM
  44 #define CONST
  45 #else
  46 #define CONST   const
  47 #endif /* BCMRECLAIM */
  48
  49 /* Compatibility with old-style BCMRECLAIM */
  50 #define BCMINIT(_id)            _id
  51
  52
  53 /* Put some library data/code into ROM to reduce RAM requirements */
  54 #if defined(__GNUC__) && defined(BCMROMOFFLOAD)
  55 #define BCMROMDATA(_data)       __attribute__ ((__section__ (".datarom." #_data))) _data
  56 #define BCMROMFN(_fn)           __attribute__ ((__section__ (".textrom." #_fn))) _fn
  57 #else
  58 #define BCMROMDATA(_data)       _data
  59 #define BCMROMFN(_fn)           _fn
  60 #endif
  61
  62 /* Bus types */
  63 #define SB_BUS                  0       /* Silicon Backplane */
  64 #define PCI_BUS                 1       /* PCI target */
  65 #define PCMCIA_BUS              2       /* PCMCIA target */
  66 #define SDIO_BUS                3       /* SDIO target */
  67 #define JTAG_BUS                4       /* JTAG */
  68 #define NO_BUS                  0xFF    /* Bus that does not support R/W REG */
  69
  70 /* Allows optimization for single-bus support */
  71 #ifdef BCMBUSTYPE
  72 #define BUSTYPE(bus) (BCMBUSTYPE)
  73 #else
  74 #define BUSTYPE(bus) (bus)
  75 #endif
  76
  77 /* Defines for DMA Address Width - Shared between OSL and HNDDMA */
  78 #define DMADDR_MASK_32 0x0              /* Address mask for 32-bits */
  79 #define DMADDR_MASK_30 0xc0000000       /* Address mask for 30-bits */
  80 #define DMADDR_MASK_0  0xffffffff       /* Address mask for 0-bits (hi-part) */
  81
  82 #define DMADDRWIDTH_30  30 /* 30-bit addressing capability */
  83 #define DMADDRWIDTH_32  32 /* 32-bit addressing capability */
  84 #define DMADDRWIDTH_63  63 /* 64-bit addressing capability */
  85 #define DMADDRWIDTH_64  64 /* 64-bit addressing capability */
  86
  87 /* packet headroom necessary to accomodate the largest header in the system, (i.e TXOFF).
  88  * By doing, we avoid the need  to allocate an extra buffer for the header when bridging to WL.
  89  * There is a compile time check in wlc.c which ensure that this value is at least as big
  90  * as TXOFF. This value is used in dma_rxfill (hnddma.c).
  91  */
  92 #define BCMEXTRAHDROOM 160
  93
  94 /* Headroom required for dongle-to-host communication.  Packets allocated
  95  * locally in the dongle (e.g. for CDC ioctls or RNDIS messages) should
  96  * leave this much room in front for low-level message headers which may
  97  * be needed to get across the dongle bus to the host.  (These messages
  98  * don't go over the network, so room for the full WL header above would
  99  * be a waste.)
 100  */
 101 #define BCMDONGLEHDRSZ 8
 102
 103
 104
 105 #endif /* _bcmdefs_h_ */