1: /*
     2:         
     3:         File:			WiFiControllerPCI.h
     4:         Program:		GTDriver
     5: 	Author:			Michael Roßberg
     6: 				mick@binaervarianz.de
     7: 	Description:		GTDriver is a free driver for PrismGT based cards under OS X.
     8:                 
     9:         This file is part of GTDriver.
    10: 
    11:     GTDriver is free software; you can redistribute it and/or modify
    12:     it under the terms of the GNU General Public License as published by
    13:     the Free Software Foundation; either version 2 of the License, or
    14:     (at your option) any later version.
    15: 
    16:     GTDriver is distributed in the hope that it will be useful,
    17:     but WITHOUT ANY WARRANTY; without even the implied warranty of
    18:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    19:     GNU General Public License for more details.
    20: 
    21:     You should have received a copy of the GNU General Public License
    22:     along with GTDriver; if not, write to the Free Software
    23:     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    24: */
    25: 
    26: #include "WiFiController.h" 
    27: #include <IOKit/pci/IOPCIDevice.h> 
    28: 
    29: #define CACHE_ALIGNMENT				32 
    30: #define MAX_FRAGMENT_SIZE	                1600 
    31: 
    32: /*
    33:  * Type: pageBlock_t
    34:  *
    35:  * Purpose:
    36:  *   Track a page sized memory block.
    37:  */
    38: typedef struct {
    39:     IOBufferMemoryDescriptor    *memory;
    40:     void *                      freeStart;
    41:     UInt32                      freeBytes;
    42: } pageBlock_t;
    43: 
    44: 
    45: class WiFiControllerPCI : public WiFiController {
    46:     OSDeclareDefaultStructors(WiFiControllerPCI)
    47: 
    48: public:
    49:     virtual bool startProvider(IOService *provider);
    50:     virtual bool openProvider();
    51:     virtual bool closeProvider();
    52:     virtual bool freeProvider();
    53: 
    54:     //memory functions for convinience
    55:     bool allocatePageBlock(pageBlock_t * p);
    56:     void freePageBlock(pageBlock_t * p);
    57:     bool getPhysAddress(pageBlock_t * p, void * va, IOPhysicalAddress * pa);
    58:     void *allocateMemoryFrom(pageBlock_t * p, UInt32 size, UInt32 align,
    59:                               IOPhysicalAddress * paddr = 0);
    60: protected:
    61:     virtual bool pciConfigInit(IOPCIDevice * provider);
    62:     
    63:     IOPCIDevice         *_nub;
    64:     UInt8               _pmPCICapPtr;
    65:     IOMemoryMap         *_map;
    66:     IOVirtualAddress    _ioBase;
    67:     
    68:     IOMbufLittleMemoryCursor *_mbufCursor;
    69: };
    70: