at45db.h 3.4 KB

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  1. #ifndef _DEV_AT45DB_H_
  2. #define _DEV_AT45DB_H_
  3. /*
  4. * Copyright (C) 2006 by egnite Software GmbH. All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in the
  14. * documentation and/or other materials provided with the distribution.
  15. * 3. Neither the name of the copyright holders nor the names of
  16. * contributors may be used to endorse or promote products derived
  17. * from this software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20. * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  22. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  23. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  24. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  25. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  26. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  27. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  29. * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30. * SUCH DAMAGE.
  31. *
  32. * For additional information see http://www.ethernut.de/
  33. */
  34. /*!
  35. * \file dev/at45db.h
  36. * \brief Dataflash helper routines.
  37. *
  38. * \verbatim
  39. *
  40. * $Log$
  41. * Revision 1.5 2009/01/17 11:26:47 haraldkipp
  42. * Getting rid of two remaining BSD types in favor of stdint.
  43. * Replaced 'u_int' by 'unsinged int' and 'uptr_t' by 'uintptr_t'.
  44. *
  45. * Revision 1.4 2008/08/11 06:59:59 haraldkipp
  46. * BSD types replaced by stdint types (feature request #1282721).
  47. *
  48. * Revision 1.3 2008/02/15 17:10:44 haraldkipp
  49. * At45dbPageErase selected the wrong bank. Fixed. Parameter pgn (page number)
  50. * of At45dbPageWrite() changed from unsigned int to unsigned long.
  51. * New routines At45dbPages() and At45dbPageSize() allow to determine the
  52. * chip's layout.
  53. *
  54. * Revision 1.2 2006/10/08 16:48:09 haraldkipp
  55. * Documentation fixed
  56. *
  57. * Revision 1.1 2006/09/29 12:41:55 haraldkipp
  58. * Added support for AT45 serial DataFlash memory chips. Currently limited
  59. * to AT91 builds.
  60. *
  61. *
  62. * \endverbatim
  63. */
  64. #include <sys/types.h>
  65. #include <stdint.h>
  66. extern int At45dbSendCmd(int dd, uint8_t op, uint32_t parm, int len, const void *tdata, void *rdata, int datalen);
  67. extern uint8_t At45dbGetStatus(int dd);
  68. extern int At45dbWaitReady(int dd, uint32_t tmo, int poll);
  69. extern int At45dbInit(unsigned int spibas, unsigned int spipcs);
  70. extern int At45dbPageErase(int dd, uint32_t pgn);
  71. extern int At45dbChipErase(void);
  72. extern int At45dbPageRead(int dd, uint32_t pgn, void *data, unsigned int len);
  73. extern int At45dbPageWrite(int dd, uint32_t pgn, const void *data, unsigned int len);
  74. extern uint32_t At45dbPages(int dd);
  75. extern unsigned int At45dbPageSize(int dd);
  76. extern int At45dbParamRead(unsigned int pos, void *data, unsigned int len);
  77. extern int At45dbParamWrite(unsigned int pos, const void *data, unsigned int len);
  78. #endif