txfifo.h

U盘控制器USB97C223的固件代码,对2kPAGE NAND FLASH 有很好的支持.

/*============================================================================
  ____________________________________________________________________________
                                ______________________________________________
   SSSS  M   M          CCCC          Standard Microsystems Corporation
  S      MM MM   SSSS  C                    Austin Design Center
   SSS   M M M  S      C                 11000 N. Mopac Expressway
      S  M   M   SSS   C                Stonelake Bldg. 6, Suite 500
  SSSS   M   M      S   CCCC                Austin, Texas 78759
                SSSS            ______________________________________________
  ____________________________________________________________________________

  Copyright(C) 1999, Standard Microsystems Corporation
  All Rights Reserved.

  This program code listing is proprietary to SMSC and may not be copied,
  distributed, or used without a license to do so.  Such license may have
  Limited or Restricted Rights. Please refer to the license for further
  clarification.
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  Notice: The program contained in this listing is a proprietary trade
  secret of SMSC, Hauppauge, New York, and is copyrighted
  under the United States Copyright Act of 1976 as an unpublished work,
  pursuant to Section 104 and Section 408 of Title XVII of the United
  States code. Unauthorized copying, adaption, distribution, use, or
  display is prohibited by this law.
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  Use, duplication, or disclosure by the Government is subject to
  restrictions as set forth in subparagraph(c)(1)(ii) of the Rights
  in Technical Data and Computer Software clause at DFARS 52.227-7013.
  Contractor/Manufacturer is Standard Microsystems Corporation,
  80 Arkay Drive, Hauppauge, New York, 1178-8847.
  ____________________________________________________________________________
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  <module name> - <module description>
  ____________________________________________________________________________

  comments tbd
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  Revision History
  Date      Who  Comment
  ________  ___  _____________________________________________________________
  07/16/99  tbh  -initial version
  01/02/01  tbh  -back port for the '100
  03/15/01  tbh  -merged 10x and 20x versions back into single file
                  for improved maintainability
                 -converted api macros into functions to facilitate
                  implementation, and facilitate debugging with an ice
                 -all regisers are accessed via wrappers, facilitating
                  relocation to different memory spaces (fpga vs asic, etc),
                  and for self documenting mnemonics
                 -register naming convention changed from using a prefix to
                  indicate the memory space of the register to using a prefix
                  to indicate the type of register: cpu, mcu, isa
  01/28/03  ds   Removed function prototypes that are not relevant for 242 and 211 to reclaim code space.
                 These functions are protected by the #if !defined(k_mcu_97242) && !defined(k_mcu_97211)               
  02/28/03  ds   Further expanded the code reduction to the whole 20x family.               
============================================================================*/

// prototypes
#ifndef k_20x_family
void txfifo_purge(uint8 fifo) reentrant;
t_bool txfifo_is_full(uint8 fifo) reentrant;
t_bool txfifo_is_empty(uint8 fifo) reentrant;
#endif
void txfifo_wr(uint8 fifo, uint8 pnr) reentrant;

//---eof------------------------------------------------------------------------