readme_mbx.txt

vworks 下wlan的实现代码

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WIND NET 802.11b MBX860 BSP Supplimental README file
May 8, 2003 - Copyright 2003 Wind River Systems, Inc.
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INTRODUCTION:

This file is a suppliment to the README.TXT that details specific 
changes that must be make to the config.h of the mbx860 BSP
to correctly integrate a WIND NET 802.11b device with the
MBX860's PCMCIA library.

CHANGES TO CONFIG.H:

1.  Make the changes as specified in examples/README.TXT

2.  Find the line in config.h that says
      #undef INCLUDE_MBX_PCMCIA
    Change it to
      #define INCLUDE_MBX_PCMCIA

3.  Add the following lines below the #define INCLUDE_MBX_PCMCIA

      #ifdef  INCLUDE_WLAN_END
       #define PCMCIA_SIZE         MEM_SIZE_64MB  /* PCMCIA region size - 64MB */
       #define PCMCIA_MEMORY_BA     (0xE0000000)     /* PCMCIA memory address */
       #define PCMCIA_MAX_SIZE      (0x04000000)     /* PCMCIA region sizes  - 64MB */
       #define PCMCIA_ATTR_SIZE     0x00001000     /* PCMCIA Attribute memory - 4K   */
       #define PCMCIA_ATTRIBUTE_BA PCMCIA_MEMORY_BA /* PCMCIA attribute address */
       #define PCMCIA_IO_BA (PCMCIA_ATTRIBUTE_BA + PCMCIA_ATTR_SIZE) /* PCMCIA I/O address */
       #define PCMCIA_DMA_SIZE      PCMCIA_ATTR_SIZE /* PCMCIA Dma memory       - 4K   */
       #define PCMCIA_IO_SIZE       PCMCIA_ATTR_SIZE /* PCMCIA IO memory        - 4K   */
       #define PCMCIA_MEM_SIZE      PCMCIA_SIZE
       #define PCMCIA_MAX_SOCKS 1 /* number of sockets */
      #endif

4.  At the end of config.h (immediately before #ifdef __cplusplus)
    define the following:

    #ifdef  INCLUDE_WLAN_END
    /* 
     * Under very heavy loads, the WLAN ISR intPrismInt can get a bit overwhelmed,
     * causing the system INTERRUPT stack to grow beyond the default 5000 bytes.
     * A safer value is defined here instead:
     */
     #undef ISR_STACK_SIZE
     #define ISR_STACK_SIZE 15000
    #endif