memalloc_freertos.h 4.1 KB

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  1. /****************************************************************************
  2. *
  3. * The MIT License (MIT)
  4. *
  5. * Copyright (c) 2014 - 2021 VERISILICON
  6. *
  7. * Permission is hereby granted, free of charge, to any person obtaining a
  8. * copy of this software and associated documentation files (the "Software"),
  9. * to deal in the Software without restriction, including without limitation
  10. * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11. * and/or sell copies of the Software, and to permit persons to whom the
  12. * Software is furnished to do so, subject to the following conditions:
  13. *
  14. * The above copyright notice and this permission notice shall be included in
  15. * all copies or substantial portions of the Software.
  16. *
  17. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22. * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23. * DEALINGS IN THE SOFTWARE.
  24. *
  25. *****************************************************************************
  26. *
  27. * The GPL License (GPL)
  28. *
  29. * Copyright (C) 2014 - 2021 VERISILICON
  30. *
  31. * This program is free software; you can redistribute it and/or
  32. * modify it under the terms of the GNU General Public License
  33. * as published by the Free Software Foundation; either version 2
  34. * of the License, or (at your option) any later version.
  35. *
  36. * This program is distributed in the hope that it will be useful,
  37. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  38. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  39. * GNU General Public License for more details.
  40. *
  41. * You should have received a copy of the GNU General Public License
  42. * along with this program; if not, write to the Free Software Foundation,
  43. * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  44. *
  45. *****************************************************************************
  46. *
  47. * Note: This software is released under dual MIT and GPL licenses. A
  48. * recipient may use this file under the terms of either the MIT license or
  49. * GPL License. If you wish to use only one license not the other, you can
  50. * indicate your decision by deleting one of the above license notices in your
  51. * version of this file.
  52. *
  53. *****************************************************************************/
  54. #ifndef _MEMALLOC_FREERTOS_H_
  55. #define _MEMALLOC_FREERTOS_H_
  56. #include "user_freertos.h"
  57. #include "dev_common_freertos.h"
  58. #undef PDEBUG /* undef it, just in case */
  59. #ifdef MEMALLOC_DEBUG
  60. /* This one for user space */
  61. #define PDEBUG(fmt, args...) fprintf(stderr, fmt, ## args)
  62. #else
  63. #define PDEBUG(fmt, args...) /* not debugging: nothing */
  64. #endif
  65. /*
  66. * Ioctl definitions
  67. */
  68. /* Use 'k' as magic number */
  69. #define MEMALLOC_IOC_MAGIC 'k'
  70. /*
  71. * S means "Set" through a ptr,
  72. * T means "Tell" directly with the argument value
  73. * G means "Get": reply by setting through a pointer
  74. * Q means "Query": response is on the return value
  75. * X means "eXchange": G and S atomically
  76. * H means "sHift": T and Q atomically
  77. */
  78. #define MEMALLOC_IOCXGETBUFFER _IOWR(MEMALLOC_IOC_MAGIC, 1, MemallocParams*)
  79. #define MEMALLOC_IOCSFREEBUFFER _IOW(MEMALLOC_IOC_MAGIC, 2, unsigned long*)
  80. #define MEMALLOC_IOCGMEMBASE _IOR(MEMALLOC_IOC_MAGIC, 3, unsigned long *)
  81. /* ... more to come */
  82. #define MEMALLOC_IOCHARDRESET _IO(MEMALLOC_IOC_MAGIC, 15) /* debugging tool */
  83. #define MEMALLOC_IOC_MAXNR 15
  84. typedef struct {
  85. unsigned long long bus_address;
  86. unsigned int size;
  87. unsigned long translation_offset;
  88. unsigned int mem_type;
  89. } MemallocParams;
  90. //Mem device
  91. int __init memalloc_init(void);
  92. int memalloc_open(int *inode, int filp);
  93. int memalloc_release(int *inode, int filp);
  94. long memalloc_ioctl(int filp, unsigned int cmd, void *arg);
  95. void * DirectMemoryMap(unsigned long long busaddr, unsigned long map_size);
  96. addr_t GetBusAddrForIODevide(unsigned int size);
  97. #endif /* _MEMALLOC_FREERTOS_H_ */